FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Finsterle, S
Zhang, YQ
Pan, LH
Dobson, P
Oglesby, K
AF Finsterle, Stefan
Zhang, Yingqi
Pan, Lehua
Dobson, Patrick
Oglesby, Ken
TI Microhole arrays for improved heat mining from enhanced geothermal
systems
SO GEOTHERMICS
LA English
DT Article
DE Geothermal energy; Heat extraction; Microholes; Numerical modeling; EGS
ID SOULTZ-SOUS-FORETS; POROUS-MEDIA; FLUID-FLOW; RESERVOIR; SIMULATION;
TRANSPORT; ROCKS
AB Numerical simulations are used to examine whether microhole arrays have the potential to increase the heat mining efficiency and sustainability of enhanced geothermal systems (EGS). Injecting the working fluid from a large number of spatially distributed microholes rather than a few conventionally drilled wells is likely to provide access to a larger reservoir volume with enhanced overall flow distances between the injection and production wells and increased contact area between permeable fractures and the hot rock matrix. More importantly, it reduces the risk of preferential flow and early thermal breakthrough, making microhole array-based EGS a more robust design. Heat recovery factors are calculated for EGS reservoirs with a conventional well configuration and with microhole arrays. The synthetic reservoir has properties similar to those of the EGS test site at Soultz-sous-Forets. The wells and microholes are explicitly included in the numerical model. They intersect a stimulated reservoir region, which is modeled using a dual-permeability approach, as well as a wide-aperture zone, which is incorporated as a discrete feature. Local and global sensitivity analyses are used to examine the robustness of the design for a variety of reservoir and operating conditions. The simulations indicate that the flexibility offered by microhole drilling technology could provide an alternative EGS exploitation option with improved performance. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Finsterle, Stefan; Zhang, Yingqi; Pan, Lehua; Dobson, Patrick] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Oglesby, Ken] Impact Technol LLC, Tulsa, OK 74153 USA.
RP Zhang, YQ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, 1 Cyclotron Rd,MS 74-120, Berkeley, CA 94720 USA.
EM YQZhang@lbl.gov
RI Finsterle, Stefan/A-8360-2009; Dobson, Patrick/D-8771-2015; Zhang,
Yingqi/D-1203-2015; Pan, Lehua/G-2439-2015
OI Finsterle, Stefan/0000-0002-4446-9906; Dobson,
Patrick/0000-0001-5031-8592;
FU Lawrence Berkeley National Laboratory under U.S. Department of Energy,
Assistant Secretary for Energy Efficiency and Renewable Energy,
Geothermal Technologies Program [DE-FOA-0000075]
FX The very thoughtful comments and suggestions by two anonymous reviewers
and the technical review by Yoojin Jung of Lawrence Berkeley National
Laboratory are greatly appreciated. This work was supported by Lawrence
Berkeley National Laboratory under U.S. Department of Energy, Assistant
Secretary for Energy Efficiency and Renewable Energy, Geothermal
Technologies Program, Contract No. DE-FOA-0000075: Recovery Act:
Enhanced Geothermal Systems Component Research and Development/Analysis.
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0375-6505
EI 1879-3576
J9 GEOTHERMICS
JI Geothermics
PD JUL
PY 2013
VL 47
BP 104
EP 115
DI 10.1016/j.geothermics.2013.03.001
PG 12
WC Energy & Fuels; Geosciences, Multidisciplinary
SC Energy & Fuels; Geology
GA 168DX
UT WOS:000320687000011
ER
PT J
AU DiPippo, R
Lippmann, MJ
AF DiPippo, Ronald
Lippmann, Marcelo J.
TI Alfredo Mainieri Protti (1943-2013) Obituary
SO GEOTHERMICS
LA English
DT Biographical-Item
C1 [DiPippo, Ronald] Univ Massachusetts Dartmouth, South Dartmouth, MA 02748 USA.
[Lippmann, Marcelo J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP DiPippo, R (reprint author), Univ Massachusetts Dartmouth, South Dartmouth, MA 02748 USA.
EM RonDiPippo@comcast.net; mjlippmann@lbl.gov
NR 1
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0375-6505
J9 GEOTHERMICS
JI Geothermics
PD JUL
PY 2013
VL 47
BP 127
EP 127
DI 10.1016/j.geothermics.2013.03.005
PG 1
WC Energy & Fuels; Geosciences, Multidisciplinary
SC Energy & Fuels; Geology
GA 168DX
UT WOS:000320687000013
ER
PT J
AU Wu, W
Qin, YF
Li, Z
Dong, J
Dai, JC
Lu, CC
Guo, XJ
Zhao, Y
Zhu, Y
Zhang, W
Hang, B
Sha, JH
Shen, HB
Xia, YK
Hu, ZB
Wang, XR
AF Wu, Wei
Qin, Yufeng
Li, Zheng
Dong, Jing
Dai, Juncheng
Lu, Chuncheng
Guo, Xuejiang
Zhao, Yang
Zhu, Yong
Zhang, Wei
Hang, Bo
Sha, Jiahao
Shen, Hongbing
Xia, Yankai
Hu, Zhibin
Wang, Xinru
TI Genome-wide microRNA expression profiling in idiopathic non-obstructive
azoospermia: significant up-regulation of miR-141, miR-429 and
miR-7-1-3p
SO HUMAN REPRODUCTION
LA English
DT Article
DE DNA methylation; male infertility; microRNA; non-obstructive
azoospermia; seminal plasma
ID SEMINAL PLASMA MICRORNAS; MALE-INFERTILITY; CANCER; SPERMATOGENESIS;
DIAGNOSIS; DISEASE; ONCOGENESIS; BIOMARKERS; TISSUES; SYSTEM
AB What is the profile of miRNAs in seminal plasma of patients with non-obstructive azoospermia (NOA)?
miR-141, miR-429 and miR-7-1-3p are significantly increased in seminal plasma of patients with NOA compared with fertile controls.
There is currently an urgent need to develop a noninvasive diagnostic test for NOA. Altered microRNA (miRNA) profiles have been proposed as potential biomarkers for the diagnosis of disease states.
A total of 200 subjects (n 100 for NOA, n 100 for fertile control) were recruited to participate in this study. Recruitment took place from May 2008 to June 2010.
We employed a strategy consisting of initial screening by TaqMan Low Density Array then further validation with a TaqMan quantitative RTPCR assay. Validation of the profiling results was conducted in two independent phases. In addition, the expression of the three validated seminal plasma miRNAs (sp-miRNAs) was examined in testicular tissues of patients with NOA and of fertile controls. Methylation status and functional analyses were also performed for the identified sp-miRNAs.
miR-141, miR-429 and miR-7-1-3p were significantly increased in seminal plasma of patients with NOA compared with fertile controls. As sensitive and specific biomarkers, the profiling of these three identified sp-miRNAs provides a novel noninvasive, semen-based test for NOA diagnosis. The methylation status of these sp-miRNAs was inversely associated with their expression patterns. Additionally, we found that Cbl and Tgf2 were down-regulated by miR-141, while Rb1 and Pik3r3 were down-regulated by miR-7-1-3p.
miRNA expression profile was investigated in seminal plasma samples from only a small number of NOA patients. In future investigations, a larger sample size should be adopted and the functional role of the three sp-miRNAs should be further characterized in animal models.
Given that sp-miRNAs show reproducible and stable expression levels, they are potentially novel noninvasive biomarkers for the diagnosis of NOA. We propose that the three sp-miRNAs described above may participate in a methylation-miRNA-gene network related to NOA development. This work provides a foundation for interpretation of miRNA changes associated with pathogenesis of NOA and extends the current understanding of human NOA pathogenesis.
This work was supported by the following grants: Key Project of National Natural Science Foundation of China (No. 30930079), National Basic Research Program of China (973 Program) (No. 2009CB941703, 2011CB944304), National Natural Science Foundation of China (No. 81072328 and 30901232); Science and Technology Development Fund Key Project of Nanjing Medical University (No. 2012NJMU002) and Priority Academic Program Development of Jiangsu Higher Education Institutions. The funding organizations played no role in the design and conduct of the study, in collection, management, analysis and interpretation of the data, or in the presentation, review or approval of the manuscript. There are no conflicts of interest to be declared.
C1 [Wu, Wei; Qin, Yufeng; Lu, Chuncheng; Guo, Xuejiang; Zhang, Wei; Sha, Jiahao; Xia, Yankai; Wang, Xinru] Nanjing Med Univ, Sch Publ Hlth, Inst Toxicol, State Key Lab Reprod Med, Nanjing 210029, Jiangsu, Peoples R China.
[Wu, Wei; Qin, Yufeng; Lu, Chuncheng; Xia, Yankai; Wang, Xinru] Nanjing Med Univ, Minist Educ, Key Lab Modern Toxicol, Beijing, Peoples R China.
[Wu, Wei] Wuxi Hosp Maternal & Child Hlth Care, Wuxi 214002, Peoples R China.
[Li, Zheng; Zhu, Yong] Shanghai Jiao Tong Univ, Sch Med, Renji Hosp, Dept Urol,Shanghai Human Sperm Bank,Shanghai Inst, Shanghai 200001, Peoples R China.
[Dong, Jing; Dai, Juncheng; Zhao, Yang; Shen, Hongbing; Hu, Zhibin] Nanjing Med Univ, Ctr Canc, Dept Epidemiol & Biostat, Nanjing 210029, Jiangsu, Peoples R China.
[Zhang, Wei] Nanjing Med Univ, Affiliated Hosp 1, Dept Urol, Nanjing 210029, Jiangsu, Peoples R China.
[Hang, Bo] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Life Sci Div, Berkeley, CA 94720 USA.
RP Xia, YK (reprint author), Nanjing Med Univ, Inst Toxicol, State Key Lab Reprod Med, 818 East Tianyuan Rd, Nanjing 211166, Jiangsu, Peoples R China.
EM yankaixia@njmu.edu.cn
RI Guo, Xuejiang/J-9600-2014
OI Guo, Xuejiang/0000-0002-0475-5705
FU Key Project of National Natural Science Foundation of China [30930079];
National Basic Research Program of China (973 Program) [2009CB941703,
2011CB944304]; National Natural Science Foundation of China [81072328,
30901232]; Science and Technology Development Fund Key Project of
Nanjing Medical University [2012NJMU002]; Priority Academic Program
Development of Jiangsu Higher Education Institutions
FX This work was supported by the following grants: Key Project of National
Natural Science Foundation of China (No. 30930079), National Basic
Research Program of China (973 Program) (No. 2009CB941703,
2011CB944304), National Natural Science Foundation of China (No.
81072328 and 30901232); Science and Technology Development Fund Key
Project of Nanjing Medical University (No. 2012NJMU002) and Priority
Academic Program Development of Jiangsu Higher Education Institutions.
The funding organizations played no role in the design and conduct of
the study, in collection, management, analysis and interpretation of the
data, or in the presentation, review or approval of the manuscript.
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PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0268-1161
J9 HUM REPROD
JI Hum. Reprod.
PD JUL
PY 2013
VL 28
IS 7
BP 1827
EP 1836
DI 10.1093/humrep/det099
PG 10
WC Obstetrics & Gynecology; Reproductive Biology
SC Obstetrics & Gynecology; Reproductive Biology
GA 170MK
UT WOS:000320855600012
PM 23559187
ER
PT J
AU Li, JV
Duenow, JN
Kuciauskas, D
Kanevce, A
Dhere, RG
Young, MR
Levi, DH
AF Li, Jian V.
Duenow, Joel N.
Kuciauskas, Darius
Kanevce, Ana
Dhere, Ramesh G.
Young, Matthew R.
Levi, Dean H.
TI Electrical Characterization of Cu Composition Effects in CdS/CdTe
Thin-Film Solar Cells With a ZnTe:Cu Back Contact
SO IEEE JOURNAL OF PHOTOVOLTAICS
LA English
DT Article
DE Admittance measurement; capacitance-voltage (CV) characteristics; CdTe;
charge carrier density; contacts; defect
ID LEVEL TRANSIENT SPECTROSCOPY; DEEP-LEVEL; CDTE; THICKNESS; DEFECTS
AB We study the effects of Cu composition on the CdTe/ZnTe:Cu back contact and the bulk CdTe. For the back contact, its potential barrier decreases with Cu concentration, while its saturation current density increases. For the bulk CdTe, the hole density increases with Cu concentration. We identify a Cu-related deep level at similar to 0.55 eV whose concentration is significant when the Cu concentration is high. The device performance, which initially improves with Cu concentration then decreases, reflects the interplay between the positive influences (reducing the back-contact potential barrier while increasing the saturation current density of the back contact and hole density in CdTe bulk) and negative influences (increasing deep levels in CdTe) of Cu.
C1 [Li, Jian V.; Duenow, Joel N.; Kuciauskas, Darius; Kanevce, Ana; Dhere, Ramesh G.; Young, Matthew R.; Levi, Dean H.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Li, JV (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM jian.li@nrel.gov; joel.duenow@nrel.gov; darius.kuciauskas@nrel.gov;
Ana.Kanevce@nrel.gov; ramesh.dhere@nrel.gov; matthew.young@nrel.gov;
dean.levi@nrel.gov
RI Li, Jian/B-1627-2016
FU U.S. Department of Energy [DE-AC36-08GO28308]; National Renewable Energy
Laboratory
FX Manuscript received May 14, 2012; revised October 16, 2012 and February
5, 2013; accepted March 19, 2013. Date of publication April 29, 2013;
date of current version June 18, 2013. This work was supported by the
U.S. Department of Energy under Contract DE-AC36-08GO28308 with the
National Renewable Energy Laboratory.
NR 21
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U1 3
U2 58
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-3381
J9 IEEE J PHOTOVOLT
JI IEEE J. Photovolt.
PD JUL
PY 2013
VL 3
IS 3
BP 1095
EP 1099
DI 10.1109/JPHOTOV.2013.2257919
PG 5
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA 170OK
UT WOS:000320862500025
ER
PT J
AU Jin, HH
Miller, GM
Pety, SJ
Griffin, AS
Stradley, DS
Roach, D
Sottos, NR
White, SR
AF Jin, Henghua
Miller, Gina M.
Pety, Stephen J.
Griffin, Anthony S.
Stradley, Dylan S.
Roach, Dennis
Sottos, Nancy R.
White, Scott R.
TI Fracture behavior of a self-healing, toughened epoxy adhesive
SO INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
LA English
DT Article
DE Epoxy adhesive; Self-healing; Microcapsule; Fracture toughness
ID OPENING METATHESIS POLYMERIZATION; FIBER-REINFORCED COMPOSITES; FILLED
EPOXY; RUBBER PARTICLES; MATRIX ADHESION; POLYMERS; MECHANISMS;
TOUGHNESS; SIZE; FAILURE
AB A self-healing, toughened epoxy adhesive is demonstrated based on a commercial structural adhesive film. Self-healing is achieved via embedded microcapsules containing dicyclopentadiene monomer and solid particles of bis(tricyclohexylphosphine)-benzylidine ruthenium (IV) dichloride (Grubbs') catalyst. Recovery of fracture toughness is assessed through fracture testing of width tapered double cantilever beam (WTDCB) specimens. Healing efficiencies as high as 58% were achieved for 6.6 wt% DCPD microcapsules and 10 mg Grubbs' catalyst. However, virgin fracture toughness is reduced with the addition of ca. 117 mu m diameter microcapsules as a result of suppression of the damage zone as revealed by transmission optical micrographs. The uniform dispersal of microcapsules throughout a rubber toughened epoxy adhesive formulated using EPON 828, piperidine and CTBN alleviated the suppression effect and demonstrated retention of virgin fracture toughness of adhesives. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Jin, Henghua; Miller, Gina M.; Pety, Stephen J.; Griffin, Anthony S.; Stradley, Dylan S.; Sottos, Nancy R.; White, Scott R.] Univ Illinois, Urbana, IL 61801 USA.
[Jin, Henghua; Pety, Stephen J.; Griffin, Anthony S.; Stradley, Dylan S.; Sottos, Nancy R.; White, Scott R.] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA.
[Roach, Dennis] Sandia Natl Labs, FAA Airworthiness Assurance Ctr, Livermore, CA 94550 USA.
RP White, SR (reprint author), Univ Illinois, Urbana, IL 61801 USA.
EM swhite@illinois.edu
FU National Science Foundation [CMS 05-27965]; Sandia National Laboratories
[BPO 378467]; NDSEG fellowship; Department of Defense
FX The authors acknowledge funding support from the National Science
Foundation (Grant # CMS 05-27965) and Sandia National Laboratories (BPO
378467). Stephen Pety was supported in part by an NDSEG fellowship,
which is sponsored by the Department of Defense. In addition, the
authors greatly acknowledge Dr. Chris Mangun and Dr. Mary M. Caruso for
technical help and discussion. Manufacturing test specimens was
accomplished with the help of Kent Elam in the Aerospace Engineering
Machine Shop. Fracture testing was completed at the Advanced Materials
Testing and Engineering Lab, with assistance of Peter Kurath, Gavin Horn
and Rick Rottet. Electron microscopy was performed in the Imaging
Technology Group of the Beckman Institute for Advanced Science and
Technology, with the assistance of Scott Robinson.
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0143-7496
J9 INT J ADHES ADHES
JI Int. J. Adhes. Adhes.
PD JUL
PY 2013
VL 44
BP 157
EP 165
DI 10.1016/j.ijadhadh.2013.02.015
PG 9
WC Engineering, Chemical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA 165LK
UT WOS:000320485200018
ER
PT J
AU Derode, B
Cappa, F
Guglielmi, Y
Rutqvist, J
AF Derode, Benoit
Cappa, Frederic
Guglielmi, Yves
Rutqvist, Jonny
TI Coupled seismo-hydromechanical monitoring of inelastic effects on
injection-induced fracture permeability
SO INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
LA English
DT Article
DE Inelastic fracture permeability; Microseismicity; Hydromechanical
experiment and modeling; Fluid and stress transfer; Strength weakening
ID INDUCED SEISMICITY; FAULT ZONE; EARTHQUAKE; STIFFNESS; BEHAVIOR;
SYSTEMS; STRESS; FRANCE; MEXICO; SLOPE
AB We present in situ measurements of fluid pressure, deformation and seismicity in natural fractures together with coupled hydromechanical simulations. We conducted a step-rate water injection (similar to 3.5 MPa and 1200 s) to induce the local pressurization of a critically stressed fractured carbonate reservoir layer located at 250 m-depth in the Low Noise Underground Laboratory (LSBB), southern France. An observed factor-of-3 increase in the fracture permeability was associated with the injection-induced fluid pressure increase and about 100 triggered seismic events. Both normal opening (a few microns) of the fluid-injected fracture and the associated tilt ( <1 micro-radian) of the fracture near field displayed inelastic behavior highlighting an irreversible fracture shear and dilatant failure, amounting to about 1/3-1/2 of the maximum measured deformations.
Using a plane-strain finite-difference coupled hydromechanical model, our calculation shows that tensile failure first occurred in the injection zone and then shear failure spread along fractures into the surrounding unsaturated rock through stress transfer from the injection zone. The most striking result of these model simulations is that the mechanical weakening of the fractures in the near field induced a 2-5 x 10(5) Pa release of the normal stress across the fluid-injected fracture that provoked fracture slip and increase in permeability. A geological exploration of the fracture zone after the experiment showed that no major failure had occurred, and we therefore relate these strength and permeability variations to the slight reactivation (similar to microns) of pre-existing fractures. (C) 2013 Elsevier Ltd..All rights reserved.
C1 [Derode, Benoit; Cappa, Frederic] Univ Nice Sophia Antipolis, Geoazur UMR7329, Cote dAzur Observ, F-06560 Sophia Antipolis, France.
[Guglielmi, Yves] Aix Marseille Univ, CNRS, IRD, CEREGE,UMR7330, F-13545 Aix En Provence, France.
[Cappa, Frederic; Rutqvist, Jonny] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Derode, B (reprint author), Univ Nice Sophia Antipolis, Geoazur UMR7329, Cote dAzur Observ, 250 Rue Albert Einstein, F-06560 Sophia Antipolis, France.
EM derode@geoazur.unice.fr
RI Rutqvist, Jonny/F-4957-2015; Cappa, Frederic/B-4014-2017
OI Rutqvist, Jonny/0000-0002-7949-9785; Cappa, Frederic/0000-0003-4859-8024
FU U.S. Department of Energy [DE-AC02-05CH11231]
FX This work is financed by the ANR "Captage de CO2" through the
"HPPP-CO2" Project, by the PACA county through the
"PETRO-PRO" Project, and by the ANR "RiskNat" through the "SLAMS"
Project. Funding for the contribution by Lawrence Berkeley National
Laboratory was provided by the U.S. Department of Energy under Contract
no. DE-AC02-05CH11231. We thank the engineers team (D. Boyer, A.
Cavaillou, and M. Auguste) of the Laboratoire Souterrain a Bas Bruit de
Rustrel (LSBB) (http://lsbb.oca.eu/), and the SITES S.A.S. engineer
Herve Caron for their technical support during the experiments. We also
thank the anonymous reviewer for the constructive comments and
suggestions that improved our paper.
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1365-1609
J9 INT J ROCK MECH MIN
JI Int. J. Rock Mech. Min. Sci.
PD JUL
PY 2013
VL 61
BP 266
EP 274
DI 10.1016/j.ijrmms.2013.03.008
PG 9
WC Engineering, Geological; Mining & Mineral Processing
SC Engineering; Mining & Mineral Processing
GA 165PA
UT WOS:000320494600024
ER
PT J
AU Jordanova, V
Borovsky, J
Roussev, I
AF Jordanova, Vania
Borovsky, Joseph
Roussev, Ilia
TI Special Issue: Dynamics of the Complex Geospace System Preface
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Editorial Material
C1 [Jordanova, Vania] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Borovsky, Joseph] Space Sci Inst, Boulder, CO USA.
[Roussev, Ilia] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
RP Jordanova, V (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM vania@lanl.gov; jborovsky@spacescience.org; iroussev@ifa.hawaii.edu
OI Jordanova, Vania/0000-0003-0475-8743
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-6826
J9 J ATMOS SOL-TERR PHY
JI J. Atmos. Sol.-Terr. Phys.
PD JUL
PY 2013
VL 99
SI SI
BP V
EP V
DI 10.1016/S1364-6826(13)00137-5
PG 1
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 165OS
UT WOS:000320493800001
ER
PT J
AU Farrugia, CJ
Erkaev, NV
Jordanova, VK
Lugaz, N
Sandholt, PE
Muhlbachler, S
Torbert, RB
AF Farrugia, C. J.
Erkaev, N. V.
Jordanova, V. K.
Lugaz, N.
Sandholt, P. E.
Muehlbachler, S.
Torbert, R. B.
TI Features of the interaction of interplanetary coronal mass
ejections/magnetic clouds with the Earth's magnetosphere
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
DE Interplanetary coronal mass ejections; Magnetosheath flow; ICME-ICME
interactions; 2-Dip geomagnetic storms
ID TRANSPOLAR POTENTIAL SATURATION; DAYSIDE MAGNETOPAUSE; PLASMA
OBSERVATIONS; MAGNETIC-FIELD; COMPLEX EJECTA; RAM PRESSURE; ART.; SHOCK;
MAGNETOSHEATH; SIGNATURES
AB The interaction of interplanetary coronal mass ejections (ICMEs) and magnetic clouds (MCs) with the Earth's magnetosphere exhibits various interesting features principally due to interplanetary parameters which change slowly and reach extreme values of long duration. These, in turn, allow us to explore the geomagnetic response to continued and extreme driving of the magnetosphere. In this paper we shall discuss elements of the following: (i) anomalous features of the flow in the terrestrial magnetosheath during ICME/MC passage and (ii) large geomagnetic disturbances when total or partial mergers of ICMEs/MCs pass Earth. In (i) we emphasize two roles played by the upstream Alfven Mach number in solar wind-magnetosphere interactions: (i) It gives rise to wide plasma depletion layers. (ii) It enhances the magnetosheath flow speed on draped magnetic field lines. (By plasma depletion layer we mean a magnetosheath region adjacent to the magnetopause where magnetic forces dominate over hydrodynamic forces.) In (ii) we stress that the ICME mergers elicit geoeffects over and above those of the individual members. In addition, features of the non-linear behavior of the magnetosphere manifest themselves. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Farrugia, C. J.; Lugaz, N.; Torbert, R. B.] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
[Erkaev, N. V.] Russian Acad Sci, Inst Computat Modeling, Krasnoyark, Russia.
[Erkaev, N. V.] Siberian Fed Univ, Krasnoyarsk, Russia.
[Jordanova, V. K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Sandholt, P. E.] Univ Oslo, Dept Phys, Oslo, Norway.
[Muehlbachler, S.] Austrian Res Inst, Vienna, Austria.
RP Farrugia, CJ (reprint author), Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
EM charlie.farrugia@unh.edu
RI Lugaz, Noe/C-1284-2008; Erkaev, Nikolai/M-1608-2013;
OI Lugaz, Noe/0000-0002-1890-6156; Erkaev, Nikolai/0000-0001-8993-6400;
Jordanova, Vania/0000-0003-0475-8743
FU NASA [NNX10AQ29G]; NSF [AGS-1140211]; Austrian Science Fund Project
[I193-N16]; RFBR [12-05-00152-a]; U.S. Department of Energy; NASA
FX C.J.F. is supported by NASA Grant NNX10AQ29G and NSF Grant AGS-1140211.
N.V.E. acknowledges support from Austrian Science Fund Project I193-N16
and RFBR Grant no 12-05-00152-a. N.L. acknowledges support from NSF
Grant AGS-1140211. Work at LANL was conducted under the auspices of the
U.S. Department of Energy with partial support from NASA and NSF.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-6826
J9 J ATMOS SOL-TERR PHY
JI J. Atmos. Sol.-Terr. Phys.
PD JUL
PY 2013
VL 99
SI SI
BP 14
EP 26
DI 10.1016/j.jastp.2012.11.014
PG 13
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 165OS
UT WOS:000320493800003
ER
PT J
AU Moore, TE
Burch, JL
Daughton, WS
Fuselier, SA
Hasegawa, H
Petrinec, SM
Pu, ZY
AF Moore, T. E.
Burch, J. L.
Daughton, W. S.
Fuselier, S. A.
Hasegawa, H.
Petrinec, S. M.
Pu, Zuyin
TI Multiscale studies of the three-dimensional dayside X-line
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
DE Reconnection; Magnetosphere; Multiscale; Plasma; Magnetic
ID MAGNETIC RECONNECTION; CLUSTER OBSERVATIONS; MAGNETOPAUSE; FIELD;
BOUNDARY
AB We review recent experience from the Cluster, Double Star, and THEMIS missions for lessons that apply to the upcoming Magnetospheric Multiscale Mission (MMS) being developed for launch in 2014. On global scales, simulation and statistical studies lead to mean configurations of dayside reconnection, implying specific relative alignments of the inflow magnetic fields and X-line, with implications for MMS operations designed to maximize the number of close encounters with the diffusion region. At intermediate MHD-to-ion scales, reconstruction of features created by one or two X-lines have developed to the point where data from a cluster of spacecraft can determine their temporal trends and the approximate three-dimensional X-line structure. Recent petascale particle-in-cell (PIC) simulations of reconnection encompass three spatial dimensions with excellent resolution, and make striking predictions of electron scale physics that creates complex interacting flux ropes under component reconnection. High time resolution measurements from MMS will determine the detailed electron scale kinetics embedded within the global and MHD-ion scale contexts. These developments will lead to the refinement of our three-dimensional multiscale picture of reconnection, yielding improved understanding of the global, MHD, and local physics controlling the onset or quenching, variability, and mean rate of reconnection. This in turn will enable improved predictability of the structural features created by transient reconnection, and their space weather consequences. Published by Elsevier Ltd.
C1 [Moore, T. E.] NASA, Goddard SFC, Heliophys Sci Div, Greenbelt, MD 20771 USA.
[Burch, J. L.; Fuselier, S. A.] Southwest Res Inst, San Antonio, TX 78238 USA.
[Daughton, W. S.] Los Alamos Natl Labs, Los Alamos, NM 87545 USA.
[Petrinec, S. M.] Lockheed Martin ATC, Palo Alto, CA 94304 USA.
[Pu, Zuyin] Beijing Univ, Dept Geophys, Beijing 100871, Peoples R China.
RP Moore, TE (reprint author), NASA, Goddard SFC, Heliophys Sci Div, Code 670,8800 Greenbelt Rd, Greenbelt, MD 20771 USA.
EM t.e.moore@nasa.gov; jburch@swri.org; daughton@lanl.gov;
hase@stp.isas.jaxa.jp; steven.m.petrinec@lmco.com; zypu@pku.edu.cn
RI Hasegawa, Hiroshi/A-1192-2007; Moore, Thomas/D-4675-2012; Daughton,
William/L-9661-2013; NASA MMS, Science Team/J-5393-2013
OI Hasegawa, Hiroshi/0000-0002-1172-021X; Moore,
Thomas/0000-0002-3150-1137; NASA MMS, Science Team/0000-0002-9504-5214
FU NASA Magnetospheric Multiscale project at Goddard Space Flight Center
FX This work was supported by the NASA Magnetospheric Multiscale project at
Goddard Space Flight Center. The authors are grateful to the ISROSES
Conference organizers for the opportunity to present this material in
draft form there.
NR 39
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-6826
J9 J ATMOS SOL-TERR PHY
JI J. Atmos. Sol.-Terr. Phys.
PD JUL
PY 2013
VL 99
SI SI
BP 32
EP 40
DI 10.1016/j.jastp.2012.10.004
PG 9
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 165OS
UT WOS:000320493800005
ER
PT J
AU Ilie, R
Skoug, RM
Funsten, HO
Liemohn, MW
Bailey, JJ
Gruntman, M
AF Ilie, R.
Skoug, R. M.
Funsten, H. O.
Liemohn, M. W.
Bailey, J. J.
Gruntman, M.
TI The impact of geocoronal density on ring current development
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
DE Inner magnetosphere; Ring current; Geocorona; Modeling
ID ENERGETIC NEUTRAL ATOMS; CHARGE-EXCHANGE; PLASMA SHEET; CURRENT IONS;
INNER MAGNETOSPHERE; MAGNETIC STORM; ELECTRIC-FIELD; HYDROGEN; DECAY;
RADIATION
AB Long-term ring current decay following a magnetic storm is mainly due to charge exchange collisions of ring current ions with geocoronal neutral atoms forming energetic neutral atoms (ENAs) that leave the ring current system. Therefore, the density distribution of these cold and tenuous neutral hydrogen atoms plays a key role in the ring current recovery. TWINS ENA images provide a direct measurement of these ENA losses and therefore insight into the dynamics of the ring current decay through interactions with the geocorona. To assess the influence of geocoronal neutrals on ring current decay, we compare the predicted ENA emission using five different geocoronal models and the HEIDI ring current model to simulate the July 22, 2009 storm.
We show that for high energy H+ (>= 100 keV), all geocoronal models predict similar decay rates of the ring current ions. However, for low energy ions (<= 100 key), the decay rate varies significantly depending on the geocoronal density model. Comparison with TWINS ENA images shows that the location of the peak ENA enhancements is highly dependent on the distribution of geocoronal hydrogen density. The ring current topology depends greatly on the hydrogen model used, therefore knowing the H-distribution is very important in understanding how the ring current recovers following a magnetic storm. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Ilie, R.; Skoug, R. M.; Funsten, H. O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Liemohn, M. W.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Bailey, J. J.; Gruntman, M.] Univ So Calif, Los Angeles, CA USA.
RP Ilie, R (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM rilie@lanl.gov
RI Liemohn, Michael/H-8703-2012; Funsten, Herbert/A-5702-2015; Gruntman,
Mike/A-5426-2008
OI Liemohn, Michael/0000-0002-7039-2631; Funsten,
Herbert/0000-0002-6817-1039; Gruntman, Mike/0000-0002-0830-010X
FU U.S. Department of Energy; NFS [NSF IAA 1027008]; NASA TWINS project
FX Work at Los Alamos was performed under the auspices of the U.S.
Department of Energy with financial support from the NFS grant NSF IAA
1027008 and the NASA TWINS project. We gratefully acknowledge the
dedicated work of the TWINS team, especially Phil Valek and Jillian
Redfern from Southwest Research Institute for providing the data.
Special thanks to Natasha Buzulukova and Mei-Ching Fok from NASA Goddard
for providing the ENA tool.
NR 51
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-6826
EI 1879-1824
J9 J ATMOS SOL-TERR PHY
JI J. Atmos. Sol.-Terr. Phys.
PD JUL
PY 2013
VL 99
SI SI
BP 92
EP 103
DI 10.1016/j.jastp.2012.03.010
PG 12
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 165OS
UT WOS:000320493800014
ER
PT J
AU Phillips, C
AF Phillips, Cynthia
TI Best papers, IPDPS 2010
SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING
LA English
DT Editorial Material
C1 Sandia Natl Labs, Livermore, CA 94550 USA.
RP Phillips, C (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM caphill@sandia.gov
NR 0
TC 0
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U1 0
U2 0
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0743-7315
J9 J PARALLEL DISTR COM
JI J. Parallel Distrib. Comput.
PD JUL
PY 2013
VL 73
IS 7
SI SI
BP 897
EP 897
DI 10.1016/j.jpdc.2013.05.002
PG 1
WC Computer Science, Theory & Methods
SC Computer Science
GA 168BA
UT WOS:000320679500001
ER
PT J
AU Tang, W
Desai, N
Buettner, D
Lan, ZL
AF Tang, Wei
Desai, Narayan
Buettner, Daniel
Lan, Zhiling
TI Job scheduling with adjusted runtime estimates on production
supercomputers
SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING
LA English
DT Article
DE Job scheduling; Runtime estimates; Walltime prediction
AB The estimate of a parallel job's running time (walltime) is an important attribute used by resource managers and job schedulers in various scenarios, such as backfilling and short-job-first scheduling. This value is provided by the user, however, and has been repeatedly shown to be inaccurate. We studied the workload characteristic based on a large amount of historical data (over 275,000 jobs in two and a half years) from a production leadership-class computer. Based on that study, we proposed a set of walltime adjustment schemes producing more accurate estimates. To ensure the utility of these schemes on production systems, we analyzed their potential impact in scheduling and evaluated the schemes with an event-driven simulator. Our experimental results show that our method can achieve not only better overall estimation accuracy but also improved overall system performance. Specifically, the average estimation accuracy of the tested workload can be improved by up to 35%, and the system performance in terms of average waiting time and weighted average waiting time can be improved by up to 22% and 28%, respectively. (c) 2013 Elsevier Inc. All rights reserved.
C1 [Tang, Wei; Lan, Zhiling] IIT, Chicago, IL 60616 USA.
[Desai, Narayan; Buettner, Daniel] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Tang, W (reprint author), IIT, Chicago, IL 60616 USA.
EM wtang6@iit.edu
FU National Science Foundation [CNS-0834514, CNS-0720549, CCF-0702737]; US
Department of Energy [DE-AC02-06CH11357]
FX This work was supported in part by National Science Foundation grants
CNS-0834514, CNS-0720549, and CCF-0702737. The work at Argonne National
Laboratory was supported by the US Department of Energy, under Contract
DE-AC02-06CH11357. We gratefully acknowledge the use of the resources of
the Argonne Leadership Computing Facility at Argonne National
Laboratory.
NR 31
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U1 0
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0743-7315
J9 J PARALLEL DISTR COM
JI J. Parallel Distrib. Comput.
PD JUL
PY 2013
VL 73
IS 7
SI SI
BP 926
EP 938
DI 10.1016/j.jpdc.2013.02.006
PG 13
WC Computer Science, Theory & Methods
SC Computer Science
GA 168BA
UT WOS:000320679500004
ER
PT J
AU Oliker, L
Yelick, K
AF Oliker, Leonid
Yelick, Katherine
TI Best paper awards: 26th international parallel and distributed
processing symposium (IPDPS 2012)
SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING
LA English
DT Editorial Material
C1 [Oliker, Leonid] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Oliker, L (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA.
EM loliker@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 6
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0743-7315
J9 J PARALLEL DISTR COM
JI J. Parallel Distrib. Comput.
PD JUL
PY 2013
VL 73
IS 7
SI SI
BP 986
EP 986
DI 10.1016/j.jpdc.2013.03.001
PG 1
WC Computer Science, Theory & Methods
SC Computer Science
GA 168BA
UT WOS:000320679500009
ER
PT J
AU Ma, T
Bosilca, G
Bouteiller, A
Dongarra, JJ
AF Ma, Teng
Bosilca, George
Bouteiller, Aurelien
Dongarra, Jack J.
TI Kernel-assisted and topology-aware MPI collective communications on
multicore/many-core platforms
SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING
LA English
DT Article
DE MPI; Multicore; Cluster; HPC; Collective communication; Hierarchical
AB Multicore Clusters, which have become the most prominent form of High Performance Computing (HPC) systems, challenge the performance of MPI applications with non-uniform memory accesses and shared cache hierarchies. Recent advances in MPI collective communications have alleviated the performance issue exposed by deep memory hierarchies by carefully considering the mapping between the collective topology and the hardware topologies, as well as the use of single-copy kernel assisted mechanisms. However, on distributed environments, a single level approach cannot encompass the extreme variations not only in bandwidth and latency capabilities, but also in the capability to support duplex communications or operate multiple concurrent copies. This calls for a collaborative approach between multiple layers of collective algorithms, dedicated to extracting the maximum degree of parallelism from the collective algorithm by consolidating the intra- and inter-node communications.
In this work, we present HierKNEM, a kernel-assisted topology-aware collective framework, and the mechanisms deployed by this framework to orchestrate the collaboration between multiple layers of collective algorithms. The resulting scheme maximizes the overlap of intra- and inter-node communications. We demonstrate experimentally, by considering three of the most used collective operations (Broadcast, Allgather and Reduction), that (1) this approach is immune to modifications of the underlying process-core binding; (2) it outperforms state-of-art MPI libraries (Open MPI, MPICH2 and MVAPICH2) demonstrating up to a 30x speedup for synthetic benchmarks, and up to a 3x acceleration for a parallel graph application (ASP); (3) it furthermore demonstrates a linear speedup with the increase of the number of cores per compute node, a paramount requirement for scalability on future many-core hardware. (c) 2013 Elsevier Inc. All rights reserved.
C1 [Ma, Teng] Univ Tennessee, Dept EECS, Knoxville, TN 37996 USA.
[Bosilca, George; Bouteiller, Aurelien; Dongarra, Jack J.] Univ Tennessee, Knoxville, TN USA.
[Dongarra, Jack J.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Dongarra, Jack J.] Univ Manchester, Manchester, Lancs, England.
RP Ma, T (reprint author), Univ Tennessee, Dept EECS, Knoxville, TN 37996 USA.
EM xiaok1981@gmail.com
RI Dongarra, Jack/E-3987-2014
FU CNRS; RENATER
FX Experiments presented in this paper were carried out using the Grid'5000
experimental testbed, being developed under the INRIA ALADDIN
development action with support from CNRS, RENATER and several
Universities as well as other funding bodies (see
https://www.grid5000.fr).
NR 21
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PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0743-7315
J9 J PARALLEL DISTR COM
JI J. Parallel Distrib. Comput.
PD JUL
PY 2013
VL 73
IS 7
SI SI
BP 1000
EP 1010
DI 10.1016/j.jpdc.2013.01.015
PG 11
WC Computer Science, Theory & Methods
SC Computer Science
GA 168BA
UT WOS:000320679500011
ER
PT J
AU Wiel, SV
Weaver, BP
Stepan, T
AF Wiel, Scott Vander
Weaver, Brian P.
Stepan, Thomas
TI More Pitfalls of Accelerated Tests Discussion
SO JOURNAL OF QUALITY TECHNOLOGY
LA English
DT Editorial Material
C1 [Wiel, Scott Vander; Weaver, Brian P.; Stepan, Thomas] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Wiel, SV (reprint author), Los Alamos Natl Lab, Los Alamos, NM USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC QUALITY CONTROL-ASQC
PI MILWAUKEE
PA 600 N PLANKINTON AVE, MILWAUKEE, WI 53203 USA
SN 0022-4065
J9 J QUAL TECHNOL
JI J. Qual. Technol.
PD JUL
PY 2013
VL 45
IS 3
BP 238
EP 239
PG 2
WC Engineering, Industrial; Operations Research & Management Science;
Statistics & Probability
SC Engineering; Operations Research & Management Science; Mathematics
GA 172RY
UT WOS:000321023800008
ER
PT J
AU Collins, DH
Freels, JK
Huzurbazar, AV
Warr, RL
Weaver, BP
AF Collins, David H.
Freels, Jason K.
Huzurbazar, Aparna V.
Warr, Richard L.
Weaver, Brian P.
TI Accelerated Test Methods for Reliability Prediction
SO JOURNAL OF QUALITY TECHNOLOGY
LA English
DT Article
DE Accelerated Degradation Test; Accelerated Life Test; Design of
Experiments; Highly Accelerated Testing; Reliability Analysis;
Reliability Growth
ID TO-FAILURE DISTRIBUTION; DEGRADATION; MODELS
AB Perusal of quality- and reliability-engineering literature indicates some confusion over the meaning of accelerated life testing (ALT), highly accelerated life testing (HALT), highly accelerated stress screening (HASS), and highly accelerated stress auditing (HASA). In addition, there is a significant conflict between testing as part of an iterative process of finding and removing defects and testing as a means of estimating or predicting product reliability. We review the basics of these testing methods and describe how they relate to statistical methods for estimation and prediction of reliability and reliability growth. We also outline potential synergies to help reconcile statistical and engineering approaches to accelerated testing, resulting in better product quality at lower cost.
C1 [Collins, David H.; Huzurbazar, Aparna V.; Weaver, Brian P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Freels, Jason K.; Warr, Richard L.] Air Force Inst Technol, Wright Patterson AFB, OH 45433 USA.
RP Collins, DH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
EM dcollins@lanl.gov; Jason.freels@afit.edu; aparna@lanl.gov;
richard.warr@afit.edu; theguz@lanl.gov
FU U.S. Department of Energy/National Nuclear Security Administration
Enhanced Surveillance Campaign at the Los Alamos National Laboratory
[C8]
FX The work of Collins, Huzurbazar, and Weaver was funded by the U.S.
Department of Energy/National Nuclear Security Administration Enhanced
Surveillance Campaign (C8) at the Los Alamos National Laboratory. The
views expressed in this article are those of the authors and do not
reflect the official policy or position of the United States Air Force,
Department of Defense, Department of Energy, or the U.S. Government.
NR 53
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U1 3
U2 41
PU AMER SOC QUALITY CONTROL-ASQC
PI MILWAUKEE
PA 600 N PLANKINTON AVE, MILWAUKEE, WI 53203 USA
SN 0022-4065
J9 J QUAL TECHNOL
JI J. Qual. Technol.
PD JUL
PY 2013
VL 45
IS 3
BP 244
EP 259
PG 16
WC Engineering, Industrial; Operations Research & Management Science;
Statistics & Probability
SC Engineering; Operations Research & Management Science; Mathematics
GA 172RY
UT WOS:000321023800010
ER
PT J
AU Burr, T
Hamada, MS
Myers, K
Skurikhin, M
AF Burr, Tom
Hamada, Michael S.
Myers, Kary
Skurikhin, Misha
TI Point-Source Detection Using Gamma-Ray Spectra in Radiation-portal
Monitoring
SO JOURNAL OF QUALITY TECHNOLOGY
LA English
DT Article
DE Background Suppression; Mahalanobis Distance; Scan Statistic; Spectral
Distance; Time Series
ID SUPPRESSION
AB Problem: Radiation detection systems are deployed at U.S. borders to guard against illicit entry of radioactive material. Unfortunately, nuisance alarms due to naturally occurring radioactive material (NORM) reduce detection probabilities for threat sources. This paper evaluates to what extent gamma counts for a range of energies (i.e., a gamma spectrum) deployed in primary screening can detect threat-point sources, with attention to background-suppression effects.
Approach: It is assumed that most NORM sources are more spatially distributed than a point source and that most threat sources are distributed more like a point source. Therefore, we seek a high-alarm probability for vehicle profiles that exhibit a point-like shift in spectral shape. The proposed approach uses variation of the gamma spectral shape over time as a moving vehicle carrying a point source is screened.
Results: The paper uses data from approximately 2000 real vehicle screenings to develop alarm thresholds and to evaluate detection probabilities of injected threat sources from both NORM and threat isotopes. It is shown that transforming the raw gamma spectra is advantageous and that using the Mahalanobis distance to detect the point-like shift in spectral shape is superior to a spectral distance used in the literature.
C1 [Burr, Tom; Hamada, Michael S.; Myers, Kary; Skurikhin, Misha] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Burr, T (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA.
EM tburr@lanl.gov; hamada@lanl.gov; kary@lanl.gov; misha@lanl.gov
FU Department of Homeland Security under DOE [DE-AC52-06NA25396]
FX We acknowledge the Department of Homeland Security for funding the
production of this material under DOE contract DE-AC52-06NA25396 for the
management and operation of Los Alamos National Laboratory.
NR 16
TC 0
Z9 0
U1 1
U2 4
PU AMER SOC QUALITY CONTROL-ASQC
PI MILWAUKEE
PA 600 N PLANKINTON AVE, MILWAUKEE, WI 53203 USA
SN 0022-4065
J9 J QUAL TECHNOL
JI J. Qual. Technol.
PD JUL
PY 2013
VL 45
IS 3
BP 285
EP 296
PG 12
WC Engineering, Industrial; Operations Research & Management Science;
Statistics & Probability
SC Engineering; Operations Research & Management Science; Mathematics
GA 172RY
UT WOS:000321023800013
ER
PT J
AU Ping, LH
Joseph, SB
Anderson, JA
Abrahams, MR
Salazar-Gonzalez, JF
Kincer, LP
Treurnicht, FK
Arney, L
Ojeda, S
Zhang, M
Keys, J
Potter, EL
Chu, HT
Moore, P
Salazar, MG
Iyer, S
Jabara, C
Kirchherr, J
Mapanje, C
Ngandu, N
Seoighe, C
Hoffman, I
Gao, F
Tang, YY
Labranche, C
Lee, B
Saville, A
Vermeulen, M
Fiscus, S
Morris, L
Karim, SA
Haynes, BF
Shaw, GM
Korber, BT
Hahn, BH
Cohen, MS
Montefiori, D
Williamson, C
Swanstrom, R
AF Ping, Li-Hua
Joseph, Sarah B.
Anderson, Jeffrey A.
Abrahams, Melissa-Rose
Salazar-Gonzalez, Jesus F.
Kincer, Laura P.
Treurnicht, Florette K.
Arney, Leslie
Ojeda, Suany
Zhang, Ming
Keys, Jessica
Potter, E. Lake
Chu, Haitao
Moore, Penny
Salazar, Maria G.
Iyer, Shilpa
Jabara, Cassandra
Kirchherr, Jennifer
Mapanje, Clement
Ngandu, Nobubelo
Seoighe, Cathal
Hoffman, Irving
Gao, Feng
Tang, Yuyang
Labranche, Celia
Lee, Benhur
Saville, Andrew
Vermeulen, Marion
Fiscus, Susan
Morris, Lynn
Karim, Salim Abdool
Haynes, Barton F.
Shaw, George M.
Korber, Bette T.
Hahn, Beatrice H.
Cohen, Myron S.
Montefiori, David
Williamson, Carolyn
Swanstrom, Ronald
CA CAPRISA 002 Acute Infect Study Team
Ctr HIV-AIDS Vaccine Immunology
TI Comparison of Viral Env Proteins from Acute and Chronic Infections with
Subtype C Human Immunodeficiency Virus Type 1 Identifies Differences in
Glycosylation and CCR5 Utilization and Suggests a New Strategy for
Immunogen Design
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID N-LINKED GLYCOSYLATION; NEUTRALIZING ANTIBODY-RESPONSES;
MONOCYTE-DERIVED MACROPHAGES; HIV-1 GP120; HETEROSEXUAL TRANSMISSION;
ENVELOPE GLYCOPROTEINS; VERTICAL TRANSMISSION; CORECEPTOR FUNCTION; R5
ENVELOPES; V1/V2 DOMAIN
AB Understanding human immunodeficiency virus type 1 (HIV-1) transmission is central to developing effective prevention strategies, including a vaccine. We compared phenotypic and genetic variation in HIV-1 env genes from subjects in acute/early infection and subjects with chronic infections in the context of subtype C heterosexual transmission. We found that the transmitted viruses all used CCR5 and required high levels of CD4 to infect target cells, suggesting selection for replication in T cells and not macrophages after transmission. In addition, the transmitted viruses were more likely to use a maraviroc-sensitive conformation of CCR5, perhaps identifying a feature of the target T cell. We confirmed an earlier observation that the transmitted viruses were, on average, modestly under-glycosylated relative to the viruses from chronically infected subjects. This difference was most pronounced in comparing the viruses in acutely infected men to those in chronically infected women. These features of the transmitted virus point to selective pressures during the transmission event. We did not observe a consistent difference either in heterologous neutralization sensitivity or in sensitivity to soluble CD4 between the two groups, suggesting similar conformations between viruses from acute and chronic infection. However, the presence or absence of glycosylation sites had differential effects on neutralization sensitivity for different antibodies. We suggest that the occasional absence of glycosylation sites encoded in the conserved regions of env, further reduced in transmitted viruses, could expose specific surface structures on the protein as antibody targets.
C1 [Ping, Li-Hua; Joseph, Sarah B.; Anderson, Jeffrey A.; Kincer, Laura P.; Arney, Leslie; Ojeda, Suany; Keys, Jessica; Potter, E. Lake; Jabara, Cassandra; Tang, Yuyang; Fiscus, Susan; Cohen, Myron S.; Swanstrom, Ronald] Univ N Carolina, UNC Ctr AIDS Res, Chapel Hill, NC 27599 USA.
[Ping, Li-Hua; Joseph, Sarah B.; Anderson, Jeffrey A.; Kincer, Laura P.; Arney, Leslie; Ojeda, Suany; Keys, Jessica; Potter, E. Lake; Chu, Haitao; Jabara, Cassandra; Tang, Yuyang; Swanstrom, Ronald] Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA.
[Anderson, Jeffrey A.; Hoffman, Irving; Cohen, Myron S.] Univ N Carolina, Sch Med, Div Infect Dis, Chapel Hill, NC USA.
[Abrahams, Melissa-Rose; Treurnicht, Florette K.; Ngandu, Nobubelo; Williamson, Carolyn] Univ Cape Town, Div Med Virol, Inst Infect Dis & Mol Med, ZA-7925 Cape Town, South Africa.
[Abrahams, Melissa-Rose; Treurnicht, Florette K.; Ngandu, Nobubelo; Williamson, Carolyn] Natl Hlth Lab Serv, Cape Town, South Africa.
[Salazar-Gonzalez, Jesus F.; Salazar, Maria G.] Univ Alabama Birmingham, Dept Med, Birmingham, AL 35294 USA.
[Zhang, Ming; Korber, Bette T.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Zhang, Ming] Univ Georgia, Dept Epidemiol & Biostat, Athens, GA 30602 USA.
[Keys, Jessica] Univ N Carolina, Dept Epidemiol, Chapel Hill, NC USA.
[Chu, Haitao] Univ N Carolina, Dept Biostat, Chapel Hill, NC USA.
[Moore, Penny; Morris, Lynn] Natl Inst Communicable Dis, Ctr HIV & STIs, Johannesburg, South Africa.
[Iyer, Shilpa; Shaw, George M.; Hahn, Beatrice H.] Univ Penn, Dept Med, Philadelphia, PA 19104 USA.
[Iyer, Shilpa; Shaw, George M.; Hahn, Beatrice H.] Univ Penn, Dept Microbiol, Philadelphia, PA 19104 USA.
[Jabara, Cassandra] Univ N Carolina, Dept Biol, Chapel Hill, NC USA.
[Kirchherr, Jennifer; Gao, Feng; Haynes, Barton F.] Duke Univ, Dept Med, Duke Human Vaccine Inst, Durham, NC USA.
[Mapanje, Clement] UNC Project, Lilongwe, Malawi.
[Seoighe, Cathal] Natl Univ Ireland, Galway, Ireland.
[Labranche, Celia; Montefiori, David] Duke Univ, Dept Surg, Durham, NC USA.
[Lee, Benhur] Univ Calif Los Angeles, Dept Microbiol Immunol & Mol Genet, Los Angeles, CA USA.
[Saville, Andrew; Vermeulen, Marion] South African Natl Blood Serv, Weltevreden Pk, South Africa.
[Fiscus, Susan] Univ N Carolina, Dept Microbiol & Immunol, Chapel Hill, NC USA.
[Karim, Salim Abdool] Univ KwaZulu Natal, Doris Duke Med Res Inst, Ctr AIDS Program Res South Africa, Durban, South Africa.
[Korber, Bette T.] Santa Fe Inst, Santa Fe, NM 87501 USA.
[Swanstrom, Ronald] Univ N Carolina, Dept Biochem & Biophys, Chapel Hill, NC USA.
RP Swanstrom, R (reprint author), Univ N Carolina, UNC Ctr AIDS Res, Chapel Hill, NC 27599 USA.
EM risunc@med.unc.edu
RI Abdool Karim, Salim Safurdeen/N-5947-2013; Lee, Benhur/A-8554-2016;
OI Abdool Karim, Salim Safurdeen/0000-0002-4986-2133; Lee,
Benhur/0000-0003-0760-1709; Moore, Penny/0000-0001-8719-4028; ,
Carolyn/0000-0003-0125-1226; Chu, Haitao/0000-0003-0932-598X; Korber,
Bette/0000-0002-2026-5757
FU National Institutes of Health [U01 AI067854 [CHAVI], R01 AI10273, R37
AI44667, R01 AI092218]; UNC Center for AIDS Research [P30 AI50410]; UCLA
Center for AIDS Research [P30 AI028697]
FX This work was funded by awards from the National Institutes of Health
(U01 AI067854 [CHAVI]), R01 AI10273 and R37 AI44667 to R.S., and R01
AI092218 to B.L. We also received support from the UNC Center for AIDS
Research (P30 AI50410) and the UCLA Center for AIDS Research (P30
AI028697).
NR 110
TC 41
Z9 41
U1 1
U2 18
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
J9 J VIROL
JI J. Virol.
PD JUL
PY 2013
VL 87
IS 13
BP 7218
EP 7233
DI 10.1128/JVI.03577-12
PG 16
WC Virology
SC Virology
GA 160JT
UT WOS:000320116500003
PM 23616655
ER
PT J
AU Lynch, DJ
Matamala, R
Iversen, CM
Norby, RJ
Gonzalez-Meler, MA
AF Lynch, Douglas J.
Matamala, Roser
Iversen, Colleen M.
Norby, Richard J.
Gonzalez-Meler, Miquel A.
TI Stored carbon partly fuels fine-root respiration but is not used for
production of new fine roots
SO NEW PHYTOLOGIST
LA English
DT Article
DE 13 C; fine roots; free-air CO2 enrichment (FACE); post-carboxylation
fractionation; root respiration; root turnover; stored carbon (C);
Liquidambar styraciflua
ID MATURE DECIDUOUS FOREST; AIR CO2 ENRICHMENT; SOIL RESPIRATION; TEMPERATE
FOREST; ELEVATED CO2; ATMOSPHERIC CO2; HETEROTROPHIC COMPONENTS;
NITROGEN AVAILABILITY; FAGUS-SYLVATICA; RESIDENCE TIMES
AB The relative use of new photosynthate compared to stored carbon (C) for the production and maintenance of fine roots, and the rate of C turnover in heterogeneous fine-root populations, are poorly understood. We followed the relaxation of a 13C tracer in fine roots in a Liquidambar styraciflua plantation at the conclusion of a free-air CO2 enrichment experiment. Goals included quantifying the relative fractions of new photosynthate vs stored C used in root growth and root respiration, as well as the turnover rate of fine-root C fixed during [CO2] fumigation. New fine-root growth was largely from recent photosynthate, while nearly one-quarter of respired C was from a storage pool. Changes in the isotopic composition of the fine-root population over two full growing seasons indicated heterogeneous C pools; <10% of root C had a residence time <3months, while a majority of root C had a residence time >2yr. Compared to a one-pool model, a two-pool model for C turnover in fine roots (with 5 and 0.37yr-1 turnover times) doubles the fine-root contribution to forest NPP (9-13%) and supports the 50% root-to-soil transfer rate often used in models.
C1 [Lynch, Douglas J.; Gonzalez-Meler, Miquel A.] Univ Illinois, Dept Biol Sci, Chicago, IL 60607 USA.
[Matamala, Roser] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Iversen, Colleen M.; Norby, Richard J.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
[Iversen, Colleen M.; Norby, Richard J.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Lynch, DJ (reprint author), Univ Illinois, Dept Biol Sci, Chicago, IL 60607 USA.
EM dlynch3@uic.edu
RI Norby, Richard/C-1773-2012;
OI Norby, Richard/0000-0002-0238-9828; Gonzalez-Meler,
Miquel/0000-0001-5388-7969
FU United States Department of Energy, Office of Science, Biological and
Environmental Research program; United States Department of Energy
[DE-AC05-00OR22725]; US Department of Energy [ER65188]; National Science
Foundation [DEB-0919276]; National Science Foundation IGERT Grant
[DGE-0549245]; US Department of Energy, Office of Science, Office of
Biological and Environmental Research, Terrestrial Ecosystem Science
Division [DE-AC02-06CH11357]
FX We thank three anonymous reviewers for comments that improved an earlier
draft of the manuscript. Thanks to Jessica Rucks at the Stable Isotope
Laboratory at UIC for laboratory assistance. The ORNL FACE site was
supported by the United States Department of Energy, Office of Science,
Biological and Environmental Research program. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC for the United States
Department of Energy under contract DE-AC05-00OR22725. M. A. G-M. was
supported by the US Department of Energy contract ER65188 and National
Science Foundation DEB-0919276. D.J.L. was supported by National Science
Foundation IGERT Grant DGE-0549245 'Landscape Ecological and
Anthropogenic Processes'. R. M. was supported by the US Department of
Energy, Office of Science, Office of Biological and Environmental
Research, Terrestrial Ecosystem Science Division, under contract
DE-AC02-06CH11357.
NR 64
TC 25
Z9 29
U1 7
U2 105
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0028-646X
EI 1469-8137
J9 NEW PHYTOL
JI New Phytol.
PD JUL
PY 2013
VL 199
IS 2
BP 420
EP 430
DI 10.1111/nph.12290
PG 11
WC Plant Sciences
SC Plant Sciences
GA 167GC
UT WOS:000320618400012
PM 23646982
ER
PT J
AU Xiao, BP
Reece, CE
Kelley, MJ
AF Xiao, B. P.
Reece, C. E.
Kelley, M. J.
TI Superconducting surface impedance under radiofrequency field
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article
DE Particle accelerator; Superconducting RF accelerator; Surface impedance
AB Based on BCS theory with moving Cooper pairs, the electron states distribution at 0 K and the probability of electron occupation with finite temperature have been derived and applied to anomalous skin effect theory to obtain the surface impedance of a superconductor under radiofrequency (RF) field. We present the numerical results for Nb and compare these with representative RF field-dependent effective surface resistance measurements from a 1.5 GHz resonant structure. (C) 2013 Elsevier B. V. All rights reserved.
C1 [Xiao, B. P.; Reece, C. E.; Kelley, M. J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Xiao, B. P.; Kelley, M. J.] Coll William & Mary, Williamsburg, VA 23187 USA.
RP Kelley, MJ (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
EM reece@jlab.org; mkelley@jlab.org
FU US DOE [DE-AC05-06OR23177]
FX Authored by Jefferson Science Associates, LLC under US DOE Contract No.
DE-AC05-06OR23177. The US Government retains a non-exclusive, paid-up,
irrevocable, world-wide license to publish or reproduce this manuscript
for US Government purposes. The authors acknowledge the helpful
discussions on this work with G. Ciovati, A. Gurevich, and F. He.
NR 12
TC 8
Z9 9
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD JUL
PY 2013
VL 490
BP 26
EP 31
DI 10.1016/j.physc.2013.04.003
PG 6
WC Physics, Applied
SC Physics
GA 166YP
UT WOS:000320597400005
ER
PT J
AU Norris, AL
Serpersu, EH
AF Norris, Adrianne L.
Serpersu, Engin H.
TI Ligand promiscuity through the eyes of the aminoglycoside N3
acetyltransferase IIa
SO PROTEIN SCIENCE
LA English
DT Article
DE aminoglycosides; acetyltransferase; protein dynamics; ligand
promiscuity; isothermal titration calorimetry; nuclear magnetic
resonance; aminoglycoside modification; antibiotic resistance;
intrinsically disordered proteins
ID ISOTHERMAL TITRATION CALORIMETRY; COENZYME-A BINDING; MODIFYING ENZYMES;
BISUBSTRATE INHIBITORS; SOLVENT REARRANGEMENT; RIBOSOMAL-RNA;
PHOSPHOTRANSFERASE(3')-IIIA; DYNAMICS; NMR; GENES
AB Aminoglycoside-modifying enzymes (AGMEs) are expressed in many pathogenic bacteria and cause resistance to aminoglycoside (AG) antibiotics. Remarkably, the substrate promiscuity of AGMEs is quite variable. The molecular basis for such ligand promiscuity is largely unknown as there is not an obvious link between amino acid sequence or structure and the antibiotic profiles of AGMEs. To address this issue, this article presents the first kinetic and thermodynamic characterization of one of the least promiscuous AGMEs, the AG N3 acetyltransferase-IIa (AAC-IIa) and its comparison to two highly promiscuous AGMEs, the AG N3-acetyltransferase-IIIb (AAC-IIIb) and the AG phosphotransferase(3)-IIIa (APH). Despite having similar antibiotic selectivities, AAC-IIIb and APH catalyze different reactions and share no homology to one another. AAC-IIa and AAC-IIIb catalyze the same reaction and are very similar in both amino acid sequence and structure. However, they demonstrate strong differences in their substrate profiles and kinetic and thermodynamic properties. AAC-IIa and APH are also polar opposites in terms of ligand promiscuity but share no sequence or apparent structural homology. However, they both are highly dynamic and may even contain disordered segments and both adopt well-defined conformations when AGs are bound. Contrary to this AAC-IIIb maintains a well-defined structure even in apo form. Data presented herein suggest that the antibiotic promiscuity of AGMEs may be determined neither by the flexibility of the protein nor the size of the active site cavity alone but strongly modulated or controlled by the effects of the cosubstrate on the dynamic and thermodynamic properties of the enzyme.
C1 [Norris, Adrianne L.; Serpersu, Engin H.] Univ Tennessee, Dept Biochem Cell & Mol Biol, Knoxville, TN 37996 USA.
[Serpersu, Engin H.] Univ Tennessee, Grad Sch Genome Sci & Technol, Knoxville, TN 37996 USA.
[Serpersu, Engin H.] Oak Ridge Natl Lab, Knoxville, TN 37996 USA.
RP Serpersu, EH (reprint author), Univ Tennessee, Dept Biochem Cell & Mol Biol, M407 Walters Life Sci Bldg, Knoxville, TN 37996 USA.
EM Serpersu@utk.edu
FU National Science Foundation [MCB 01110741]
FX Grant sponsor: National Science Foundation; Grant number: MCB 01110741
(EHS).
NR 42
TC 2
Z9 4
U1 3
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0961-8368
J9 PROTEIN SCI
JI Protein Sci.
PD JUL
PY 2013
VL 22
IS 7
BP 916
EP 928
DI 10.1002/pro.2273
PG 13
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 171QR
UT WOS:000320944600007
PM 23640799
ER
PT J
AU Aronson, EL
Dubinsky, EA
Helliker, BR
AF Aronson, Emma L.
Dubinsky, Eric A.
Helliker, Brent R.
TI Effects of nitrogen addition on soil microbial diversity and methane
cycling capacity depend on drainage conditions in a pine forest soil
SO SOIL BIOLOGY & BIOCHEMISTRY
LA English
DT Article
DE Fertilization; Methane; Methanogen; Methanotroph; Microarray; Diversity;
qPCR
ID METHANOTROPHIC BACTERIA; ATMOSPHERIC METHANE; OXIDIZING BACTERIA;
EMISSIONS; CONSUMPTION; OXIDATION; EXCHANGE; BIOGEOGRAPHY; SEDIMENTS;
OXIDE
AB Two forested study sites, one well and one poorly drained, were used for investigation of the effects of variation in drainage, microclimate, and addition of inorganic nitrogen (N) on the whole soil microbial community and its methane cycling capacity. Both sites were capable of consuming and releasing large quantities of methane. The composition of the soil microbial community was investigated using the 3rd generation PhyloChip, a bacterial and archaeal 16S rRNA gene microarray. The PhyloChip was also used to target the composition of methane- and some N-cycling microorganisms. Relative abundance of functional genes involved in methane production and consumption was evaluated with qPCR.
Soil drainage condition determined the microbial community structure within and between sites. Greater community structure variation, richness of methanotrophs, and higher abundances of both methanotrophs and methanogens were all found in the poorly drained site, as was higher soil moisture and C content and methane release. In the poorly drained site, high N (67 kg NH4NO3 ha(-1) yr(-1)) increased methanotroph and methanogen abundance, overall taxonomic richness of Bacteria and Archaea, and richness of nitrifiers and methanotrophs. In the well drained site, high N decreased taxonomic richness. Results may indicate that high N concentrations stimulated oxidative reactions, including ammonia and methane oxidation and nitrification in the short term. The resultant increase in release of methane from the high N plots of the poorly-drained site may have been due to indirect inhibition of methane oxidation by the increase in other oxidative reactions. Alternatively, both methanogens and methanotrophs may have been stimulated by high N. Well-drained site high N decreased the taxonomic richness of the soil, but did not impact methane-cycling microbes. These findings begin to bridge the gap between microbial-scale community dynamics and ecosystem-scale ecological functions. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Aronson, Emma L.; Helliker, Brent R.] Univ Penn, Dept Biol, Philadelphia, PA 19104 USA.
[Dubinsky, Eric A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Aronson, EL (reprint author), Univ Calif Irvine, Dept Ecol & Evolutionary Biol, 321 Steinhaus, Irvine, CA 92697 USA.
EM earonson@uci.edu
RI Dubinsky, Eric/D-3787-2015
OI Dubinsky, Eric/0000-0002-9420-6661
FU Air and Waste Management Association's Air Pollution Education and
Research Grant; NASA Graduate Student Researchers Program; Garden Club
of America's Kissel Scholarship; NOAA Climate and Global Change
Postdoctoral Fellowship
FX Grant and fellowship funding was provided by the Air and Waste
Management Association's Air Pollution Education and Research Grant, the
NASA Graduate Student Researchers Program, the Garden Club of America's
Kissel Scholarship, and the NOAA Climate and Global Change Postdoctoral
Fellowship. The authors thank Drs. Brenda Casper and Peter Petraitis and
the CasperPetriatis-Helliker lab group at the University of
Pennsylvania; Dr. Mary Firestone, Rebecca Daly and the Firestone lab at
UC Berkeley; Dr. Gary Anderson and the Anderson lab at LBNL; and Drs.
John Dighton and Dennis Gray at the Rutgers University Pinelands Field
Station.
NR 50
TC 2
Z9 5
U1 11
U2 125
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-0717
J9 SOIL BIOL BIOCHEM
JI Soil Biol. Biochem.
PD JUL
PY 2013
VL 62
BP 119
EP 128
DI 10.1016/j.soilbio.2013.03.005
PG 10
WC Soil Science
SC Agriculture
GA 164QY
UT WOS:000320425800016
ER
PT J
AU Liu, HG
Poon, BK
Saldin, DK
Spence, JCH
Zwart, PH
AF Liu, Haiguang
Poon, Billy K.
Saldin, Dilano K.
Spence, John C. H.
Zwart, Peter H.
TI Three-dimensional single-particle imaging using angular correlations
from X-ray laser data
SO ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES
LA English
DT Article
ID FREE-ELECTRON LASER; PROTEIN NANOCRYSTALLOGRAPHY; MACROMOLECULAR
STRUCTURES; SCATTERING PROFILES; SPHERICAL-HARMONICS; ZERNIKE
POLYNOMIALS; DIFFRACTION DATA; CRYSTALLOGRAPHY; COMPUTATION; SYMMETRIES
AB Femtosecond X-ray pulses from X-ray free-electron laser sources make it feasible to conduct room-temperature solution scattering experiments far below molecular rotational diffusion timescales. Owing to the ultra-short duration of each snapshot in these fluctuation scattering experiments, the particles are effectively frozen in space during the X-ray exposure. In contrast to standard small-angle scattering experiments, the resulting scattering patterns are anisotropic. The intensity fluctuations observed in the diffraction images can be used to obtain structural information embedded in the average angular correlation of the Fourier transform of the scattering species, of which standard small-angle scattering data are a subset. The additional information contained in the data of these fluctuation scattering experiments can be used to determine the structure of macromolecules in solution without imposing symmetry or spatial restraints during model reconstruction, reducing ambiguities normally observed in solution scattering studies. In this communication, a method that utilizes fluctuation X-ray scattering data to determine low-resolution solution structures is presented. The method is validated with theoretical data calculated from several representative molecules and applied to the reconstruction of nanoparticles from experimental data collected at the Linac Coherent Light Source.
C1 [Liu, Haiguang; Spence, John C. H.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA.
[Poon, Billy K.; Zwart, Peter H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Saldin, Dilano K.] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
RP Zwart, PH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM phzwart@lbl.gov
FU Laboratory Directed Research and Development (LDRD) from Berkeley
Laboratory by Office of Science, of the US Department of Energy
[DE-AC02-05CH11231]; Human Frontier Science Program (HFSP) [024940]; NSF
[MCB-1158138]; Research Growth Initiative (RGI) of the University of
Wisconsin-Milwaukee
FX HL, BKP and PHZ were supported by Laboratory Directed Research and
Development (LDRD) funding from Berkeley Laboratory, provided by the
Director, Office of Science, of the US Department of Energy under
Contract No. DE-AC02-05CH11231. JCHS and HL acknowledge funding from the
Human Frontier Science Program (HFSP) award No. 024940. DKS acknowledges
support from NSF grant No. MCB-1158138 and the Research Growth
Initiative (RGI) of the University of Wisconsin-Milwaukee. We thank Dr
N. Zatsepin for stimulating discussions. The authors express gratitude
to their peers who made experimental data available to the general
public via the CXIDB.
NR 46
TC 17
Z9 18
U1 3
U2 44
PU INT UNION CRYSTALLOGRAPHY
PI CHESTER
PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND
SN 2053-2733
J9 ACTA CRYSTALLOGR A
JI Acta Crystallogr. Sect. A
PD JUL
PY 2013
VL 69
BP 365
EP 373
DI 10.1107/S0108767313006016
PN 4
PG 9
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA 167BB
UT WOS:000320604100001
PM 23778093
ER
PT J
AU Peppernick, SJ
Joly, AG
Beck, KM
Hess, WP
Wang, JY
Wang, YC
Wei, WD
AF Peppernick, Samuel J.
Joly, Alan G.
Beck, Kenneth M.
Hess, Wayne P.
Wang, Jinyong
Wang, Yi-Chung
Wei, W. David
TI Photoemission electron microscopy of a plasmonic silver nanoparticle
trimer
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID ELECTROMAGNETIC SCATTERING; MAXWELLS EQUATIONS; NUMERICAL-SOLUTION;
POLYSTYRENE; NANOPRISMS; DYNAMICS
AB We present a combined experimental and theoretical study to investigate the spatial distribution of photoelectrons emitted from silver-coated polystyrene nanoparticles. We use two-photon photoemission electron microscopy (2P-PEEM) to image electron emission from a silver-capped aggregate trimer. Finite difference time domain (FDTD) simulations are performed to model the intensity distributions of the electromagnetic near fields resulting from femtosecond laser excitation of localized surface plasmon oscillations in the trimer structure. We demonstrate that the predicted FDTD near-field intensity distribution reproduces the 2P-PEEM photoemission pattern.
C1 [Peppernick, Samuel J.; Joly, Alan G.; Beck, Kenneth M.; Hess, Wayne P.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Wang, Jinyong; Wang, Yi-Chung; Wei, W. David] Univ Florida, Dept Chem, Gainesville, FL 32611 USA.
[Wang, Jinyong; Wang, Yi-Chung; Wei, W. David] Univ Florida, Ctr Nanostruct Elect Mat, Gainesville, FL 32611 USA.
RP Hess, WP (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM wayne.hess@pnnl.gov; wei@chem.ufl.edu.gov
FU Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Geosciences, and Biosciences; Department of Energy's
Office of Biological and Environmental Research located at Pacific
Northwest National Laboratory; NSF CCI Center for Nanostructured
Electronic Materials [CHE-1038015]
FX The authors were supported by the Department of Energy, Office of Basic
Energy Sciences, Division of Chemical Sciences, Geosciences, and
Biosciences. Pacific Northwest National Laboratory is operated for the
U.S. Department of Energy by Battelle. The research was performed using
EMSL, a national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research located at
Pacific Northwest National Laboratory. J.W., Y.W. and W. D. W.
acknowledge the support from the NSF CCI Center for Nanostructured
Electronic Materials under Award No. CHE-1038015. W. D. W. acknowledges
and appreciates the generous support from ORAU for the Ralph E. Powe
Junior Faculty Enhancement Award, Sigma Xi for the Junior Faculty
Research Award from the Florida Chapter and the University of Florida
for startup assistance. Materials fabrication and characterization were
conducted at Nanoscale Research Facility (NRF) and Major Analytical
Instrumentation Center (MAIC) at UF. 2P-PEEM measurement was performed
using the EMSL through a user proposal (No. 40065).
NR 29
TC 1
Z9 1
U1 2
U2 68
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
EI 1432-0630
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD JUL
PY 2013
VL 112
IS 1
BP 35
EP 39
DI 10.1007/s00339-012-7316-5
PG 5
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 162OG
UT WOS:000320274100006
ER
PT J
AU Odziomek, K
Gajewicz, A
Haranczyk, M
Puzyn, T
AF Odziomek, K.
Gajewicz, A.
Haranczyk, M.
Puzyn, T.
TI Reliability of environmental fate modeling results for POPs based on
various methods of determining the air/water partition coefficient (log
K-AW)
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Air-water partition coefficient; Multimedia mass modeling; QSPR; POPs
ID PERSISTENT ORGANIC POLLUTANTS; MASS-BALANCE MODELS; PHYSICOCHEMICAL
PROPERTIES; APPLICABILITY DOMAIN; BRITISH-COLUMBIA; TRANSPORT;
PREDICTION; CANADA; BIOACCUMULATION; PARAMETERS
AB Air-water partition coefficient (K-AW) is one of the key parameters determining environmental behavior of Persistent Organic Pollutants (POPs). Experimentally measured values of K-AW are still unavailable for majority of POPs, thus alternative methods of supplying data, including Quantitative Structure-Property Relationships (QSPR) modeling, are often in use. In this paper, applicability of two QSPR methods of predicting K-AW were compared with each other in the context of further application of the predicted data in environmental transport and fate studies. According to the first (indirect) method, K-AW is calculated from previously predicted values of octanol-water (K-OW) and octanol-air (K-OA) partition coefficients. In the second (direct) approach, K-AW is calculated, based on the estimated value of Henry's law constant (K-H) and then adjusted to ensure its consistency with the other two partition coefficients (K-OW and K-OA). Although the indirect method carries theoretically twice as much error as the direct method, when the predicted values of K-AW are then utilized as an input to the environmental fate model The OECD P-OV and LRTP Screening Tool, ver. 2.2, the indirect method elicits much higher and therefore much more restrictive values of overall persistence (P-OV) and transfer efficiency (TE) than its equivalent (direct method). High uncertainties related to the application of the direct method result mainly from the necessary adjustment procedure. (C) 2013 Published by Elsevier Ltd.
C1 [Odziomek, K.; Gajewicz, A.; Puzyn, T.] Univ Gdansk, Lab Environm Chemometr, Fac Chem, PL-80952 Gdansk, Poland.
[Haranczyk, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Puzyn, T (reprint author), Univ Gdansk, Lab Environm Chemometr, Fac Chem, Sobieskiego 18-19, PL-80952 Gdansk, Poland.
EM t.puzyn@qsar.eu.org
RI Haranczyk, Maciej/A-6380-2014;
OI Haranczyk, Maciej/0000-0001-7146-9568; Puzyn, Tomasz/0000-0003-0449-8339
FU U. S. Department of Energy [DE-AC02-05CH11231]; Office of Science of the
U.S. Department of Energy [DE-AC02-05CH11231]; Polish Ministry of
Science and Higher Education [530-8180-D202-12]
FX This research was supported in part (to M.H.) by the U. S. Department of
Energy under contract DE-AC02-05CH11231.; This research used resources
of the National Energy Research Scientific Computing Center, which is
supported by the Office of Science of the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231.; This work was supported by the
Polish Ministry of Science and Higher Education (Grant No.
530-8180-D202-12).
NR 41
TC 5
Z9 5
U1 1
U2 35
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD JUL
PY 2013
VL 73
BP 177
EP 184
DI 10.1016/j.atmosenv.2013.02.052
PG 8
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 165NP
UT WOS:000320490900020
ER
PT J
AU Wang, YG
Huang, JY
Hopke, PK
Rattigan, OV
Chalupa, DC
Utell, MJ
Holsen, TM
AF Wang, Yungang
Huang, Jiaoyan
Hopke, Philip K.
Rattigan, Oliver V.
Chalupa, David C.
Utell, Mark J.
Holsen, Thomas M.
TI Effect of the shutdown of a large coal-fired power plant on ambient
mercury species
SO CHEMOSPHERE
LA English
DT Article
DE Coal-fired power plant (CFPP); Mercury; Positive Matrix Factorization
(PMF); Conditional probability function (CPF); Gas-particle partitioning
coefficient
ID REACTIVE GASEOUS MERCURY; ATMOSPHERIC MERCURY; SCIENTIFIC UNCERTAINTIES;
INORGANIC MERCURY; BLACK CARBON; PARTICLE; DEPOSITION; SPECIATION;
EMISSIONS; ROCHESTER
AB In the spring of 2008, a 260 MWe coal-fired power plant (CFPP) located in Rochester, New York was closed over a 4 month period. Using a 2-years data record, the impacts of the shutdown of the CFPP on nearby ambient concentrations of three Hg species were quantified. The arithmetic average ambient concentrations of gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particulate mercury (PBM) during December 2007-November 2009 were 1.6 ng m(-3), 5.1 pg m(-3), and 8.9 pg m(-3) respectively. The median concentrations of GEM, GOM, and PBM significantly decreased by 12%, 73%, and 50% after the CFPP closed (Mann-Whitney test, p < 0.001). Positive Matrix Factorization (EPA PMF v4.1) identified six factors including O-3-rich, traffic, gas phase oxidation, wood combustion, nucleation, and CFPP. When the CFPP was closed, median concentrations of GEM, GOM, and PBM apportioned to the CFPP factor significantly decreased by 25%, 74%, and 67%, respectively, compared to those measured when the CFPP was still in operation (Mann-Whitney test, p < 0.001). Conditional probability function (CPF) analysis showed the greatest reduction in all three Hg species was associated with northwesterly winds pointing toward the CFPP. These changes were clearly attributable to the closure of the CFPP. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Wang, Yungang] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Huang, Jiaoyan; Holsen, Thomas M.] Clarkson Univ, Dept Civil & Environm Engn, Potsdam, NY 13699 USA.
[Hopke, Philip K.; Holsen, Thomas M.] Clarkson Univ, Ctr Air Resource Engn & Sci, Potsdam, NY 13699 USA.
[Rattigan, Oliver V.] New York State Dept Environm Conservat, Div Air Resources, Albany, NY 12233 USA.
[Chalupa, David C.; Utell, Mark J.] Univ Rochester, Med Ctr, Dept Environm Med, Rochester, NY 14642 USA.
RP Hopke, PK (reprint author), Clarkson Univ, Ctr Air Resource Engn & Sci, Potsdam, NY 13699 USA.
EM hopkepk@clarkson.edu
RI Hopke, Philip/C-6020-2008
OI Hopke, Philip/0000-0003-2367-9661
FU New York State Energy Research and Development Authority (NYSERDA)
[8650, 10604]; United States Environmental Protection Agency (US EPA)
through Science to Achieve Results (STAR) [RD83241501]; Syracuse Center
of Excellence Collaborative Activities for Research and Technology
Innovation (CARTI) Project award; US EPA [X-83232501-0]; Electric Power
Research Institute [W06325]; US EPA Atmospheric Clean Air Markets
Division; NADP Hg Monitoring Network [EP08H000271]; EPA
FX This work was supported by the New York State Energy Research and
Development Authority (NYSERDA) through Contracts 8650 and 10604; the
United States Environmental Protection Agency (US EPA) through Science
to Achieve Results (STAR) Grant RD83241501; a Syracuse Center of
Excellence Collaborative Activities for Research and Technology
Innovation (CARTI) Project award, which is supported by a grant from the
US EPA (Award No: X-83232501-0); the Electric Power Research Institute
under Agreement W06325; the US EPA Atmospheric Clean Air Markets
Division and NADP Hg Monitoring Network (EP08H000271). Although the
research described in this article has been funded in part by the EPA,
it has not been subjected to the Agency's required peer and policy
review and, therefore, does not necessarily reflect the views of the
Agency and no official endorsement should be inferred. We gratefully
acknowledge the substantial assistance from Mr. Dirk Felton and Mr. Tom
Everts at NYSDEC.
NR 49
TC 13
Z9 16
U1 3
U2 45
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-6535
J9 CHEMOSPHERE
JI Chemosphere
PD JUL
PY 2013
VL 92
IS 4
BP 360
EP 367
DI 10.1016/j.chemosphere.2013.01.024
PG 8
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 161RX
UT WOS:000320212100004
PM 23422172
ER
PT J
AU Li, J
Wilson, N
Zelazny, A
Meyer, J
Zhong, Z
Muehleman, C
AF Li, J.
Wilson, N.
Zelazny, A.
Meyer, J.
Zhong, Z.
Muehleman, C.
TI Assessment of diffraction-enhanced synchrotron imaging for cartilage
degeneration of the human knee joint
SO CLINICAL ANATOMY
LA English
DT Article
DE diffraction-enhanced imaging; cartilage imaging; synovial joints;
osteoarthritis
ID ARTICULAR-CARTILAGE; OSTEOARTHRITIS; RADIOGRAPHY; LESIONS; BONE
AB Diffraction-enhanced imaging (DEI) is a radiographic technology that harnesses the X-ray refraction and scatter rejection properties that are not available with conventional radiography. Here, we test the efficacy of planar DEI to render images from which cartilage degeneration, characteristic of osteoarthritis, can be detected. DEI was carried out on human cadaveric intact knee joints at the X-15 beamline at the National Synchrotron Light Source. The gross specimens and the DEI images were graded separately for levels of cartilage degeneration on six individual surfaces: anterior and posterior femoral and tibial on both medial and lateral sides. There was a significant correlation between the actual levels of cartilage degeneration and what was observed in their respective DEI images (P < 0.05) for all six articular surfaces. Some articular surfaces (patellar surfaces, in particular) could not be visualized because of overlap with superimposed bone. Sensitivity for the graded articular surfaces was 0.73 and specificity was 0.92 (Grade 0 being no lesion and Grades 1-6 being increasing gradations of lesions). Chondrocalcinosis was also observed in DEI images to a far greater extent compared with the conventional radiographs. DEI renders images that are significantly correlated with their actual gross morphology. Detection of lesions was better for more severe grades of degeneration than for partial focal lesions. Although some articular surfaces could not be visualized because of superimposed bone, we feel that DEI has potential for the diagnosis of cartilage lesions and chondrocalcinosis. Clin. Anat. 26:621-629, 2013. (c) 2012 Wiley Periodicals, Inc.
C1 [Li, J.; Wilson, N.; Muehleman, C.] Rush Univ, Med Ctr, Dept Biochem, Chicago, IL 60612 USA.
[Zelazny, A.; Meyer, J.] Rush Univ, Med Ctr, Dept Radiol, Chicago, IL 60612 USA.
[Zhong, Z.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Muehleman, C.] Rush Univ, Dept Anat & Cell Biol, Med Ctr, Chicago, IL 60612 USA.
[Muehleman, C.] Rush Univ, Dept Orthoped Surg, Med Ctr, Chicago, IL 60612 USA.
RP Muehleman, C (reprint author), Rush Univ, Med Ctr, Dept Biochem, 1735 W Harrison St, Chicago, IL 60612 USA.
EM carol_muehleman@rush.edu
RI Wilson, Nicole/C-4049-2008
OI Wilson, Nicole/0000-0002-0844-1885
FU NIH [R01-AR048292]
FX Grant sponsor: NIH; Grant number: R01-AR048292
NR 19
TC 6
Z9 6
U1 1
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0897-3806
J9 CLIN ANAT
JI Clin. Anat.
PD JUL
PY 2013
VL 26
IS 5
BP 621
EP 629
DI 10.1002/ca.22106
PG 9
WC Anatomy & Morphology
SC Anatomy & Morphology
GA 166HE
UT WOS:000320544500015
PM 22674682
ER
PT J
AU D'Angelo, S
Mignone, F
Deantonio, C
Di Niro, R
Bordoni, R
Marzari, R
De Bellis, G
Not, T
Ferrara, F
Bradbury, A
Santoro, C
Sblattero, D
AF D'Angelo, Sara
Mignone, Flavio
Deantonio, Cecilia
Di Niro, Roberto
Bordoni, Roberta
Marzari, Roberto
De Bellis, Gianluca
Not, Tarcisio
Ferrara, Fortunato
Bradbury, Andrew
Santoro, Claudio
Sblattero, Daniele
TI Profiling celiac disease antibody repertoire
SO CLINICAL IMMUNOLOGY
LA English
DT Article
DE Celiac disease; Autoantibody; Autoantigen; Protein microarray;
ORF-display libraries; Next generation sequencing
ID AUTOANTIGENIC SPERM PROTEIN; TISSUE TRANSGLUTAMINASE; PHAGE-DISPLAY;
ALPHA-FODRIN; SJOGRENS-SYNDROME; AUTOANTIBODIES; IDENTIFICATION; CANCER;
GLUTEN; ASSAY
AB The aim of this study was to dissect the autoantibody response in celiac disease (CD) that remains largely unknown, with the goal of identifying the disease-specific autoantigenic protein pattern or the so called epitome. Sera from CD patients were used to select immunoreactive antigens from a cDNA phage-display library. Candidate genes were identified, the corresponding protein's produced and their immunoreactivity validated With sera from CD patients and controls. Thirteen CD-specific antigens were identified and further validated by protein microarray. The specificity for 6 of these antigens was confirmed by ELISA. Furthermore we showed that this antibody response was not abolished on a gluten free diet and was not shared with other autoimmune diseases. These antigens appear to be CD specific and independent of gluten induction. The utility of this panel extends beyond its diagnostic value and it may drive the attention to new targets for unbiased screens in autoimmunity research. (C) 2013 Elsevier Inc. All rights reserved.
C1 [D'Angelo, Sara; Deantonio, Cecilia; Santoro, Claudio; Sblattero, Daniele] Univ Eastern Piedmont Amedeo Avogadro, Dept Hlth Sci, Novara, Italy.
[D'Angelo, Sara; Deantonio, Cecilia; Santoro, Claudio; Sblattero, Daniele] Univ Eastern Piedmont Amedeo Avogadro, IRCAD, Novara, Italy.
[Mignone, Flavio] Univ Eastern Piedmont Amedeo Avogadro, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy.
[Di Niro, Roberto] Yale Univ, Dept Lab Med, Sch Med, New Haven, CT 06510 USA.
[Bordoni, Roberta; De Bellis, Gianluca] Natl Res Council ITB CNR, Inst Biomed Technol, Milan, Italy.
[Marzari, Roberto] Univ Trieste, Dept Life Sci, Trieste, Italy.
[Not, Tarcisio] Univ Trieste, Inst Child Hlth IRCCS Burlo Garofolo, Dept Med Sci, Trieste, Italy.
[D'Angelo, Sara; Ferrara, Fortunato; Bradbury, Andrew] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Santoro, C (reprint author), Univ Piemonte Orientale, Dip Sci Salute, Via Solaroli 17, I-28100 Novara, Italy.
EM csantoro@med.unipmn.it; sblatter@med.unipmn.it
RI De Bellis, Gianluca/H-9725-2013;
OI De Bellis, Gianluca/0000-0002-1622-4477; Not,
Tarcisio/0000-0003-1059-3009; Bradbury, Andrew/0000-0002-5567-8172
FU Fondazione Cariplo Bando Ricerca Biomedica 2009; EC Marie Curie Research
Training Network [MRTN-CT-20010-289964]; Compagnia San Paolo; MIUR
FIRBNG-Lab RBLA03ER38; IRCCS Burlo Garofolo [RF 35/07]; Regione Piemonte
Ricerca Sanitaria and Piattaforma Immonc
FX This work was supported by: Fondazione Cariplo Bando Ricerca Biomedica
2009; EC Marie Curie Research Training Network [contract no.
MRTN-CT-20010-289964]; Compagnia San Paolo; MIUR FIRB NG-Lab RBLA03ER38;
IRCCS Burlo Garofolo RF 35/07; Regione Piemonte Ricerca Sanitaria and
Piattaforma Immonc.
NR 52
TC 11
Z9 11
U1 1
U2 26
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1521-6616
J9 CLIN IMMUNOL
JI Clin. Immunol.
PD JUL
PY 2013
VL 148
IS 1
BP 99
EP 109
DI 10.1016/j.clim.2013.04.009
PG 11
WC Immunology
SC Immunology
GA 164RN
UT WOS:000320427300012
PM 23685219
ER
PT J
AU Kotava, N
Knoll, A
Hagen, H
AF Kotava, Natallia
Knoll, Aaron
Hagen, Hans
TI Morse-Smale decomposition of multivariate transfer function space for
separably-sampled volume rendering
SO COMPUTER AIDED GEOMETRIC DESIGN
LA English
DT Article
DE Topology; Morse theory; Volume rendering; Multidimensional transfer
functions
ID VISUALIZATION
AB We present a topology-guided technique for improving performance of multifield volume rendering with peak finding and preintegration with 2D transfer functions. We apply Morse-Smale decomposition to segment the multidimensional transfer function domain. This segmentation helps to reduce the number of cases where sampling in transfer function space should be performed, effectively reducing the rendering cost for equivalent sampling quality. We show that the overall performance is increased depending on the topology of a transfer function. (C) 2012 Elsevier B.V. All rights reserved.
C1 [Kotava, Natallia; Hagen, Hans] Univ Kaiserslautern, D-67663 Kaiserslautern, Germany.
[Knoll, Aaron] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Kotava, N (reprint author), Univ Kaiserslautern, Gottlieb Daimler Str, D-67663 Kaiserslautern, Germany.
EM kotava@rhrk.uni-kl.de; knoll@mcs.anl.gov; hagen@informatik.uni-kl.de
NR 31
TC 1
Z9 1
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-8396
EI 1879-2332
J9 COMPUT AIDED GEOM D
JI Comput. Aided Geom. Des.
PD JUL
PY 2013
VL 30
IS 6
SI SI
BP 549
EP 556
DI 10.1016/j.cagd.2012.03.020
PG 8
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 160WA
UT WOS:000320150000004
ER
PT J
AU Norgard, G
Bremer, PT
AF Norgard, Gregory
Bremer, Peer-Timo
TI Robust computation of Morse-Smale complexes of bilinear functions
SO COMPUTER AIDED GEOMETRIC DESIGN
LA English
DT Article
DE Morse-Smale complex; Bilinear; Combinatorial topology
ID PRACTICAL APPROACH
AB The Morse-Smale (MS) complex has proven to be a useful tool in extracting and visualizing features from scalar-valued data. However, existing algorithms to compute the MS complex are restricted to either piecewise linear or discrete scalar fields. This paper presents a new combinatorial algorithm to compute MS complexes for two-dimensional piecewise bilinear functions defined on quadrilateral meshes. We derive a new invariant of the gradient flow within a bilinear cell and use it to develop a provably correct computation, unaffected by numerical instabilities. This includes a combinatorial algorithm to detect and classify critical points as well as a way to determine the asymptotes of cell-based saddles and their intersection with cell edges. Finally, we introduce a simple data structure to compute and store integral lines on quadrilateral meshes which by construction prevents intersections and allows to enforce constraints on the gradient flow that preserve known invariants. (C) 2012 Elsevier B.V. All rights reserved.
C1 [Norgard, Gregory] Numer Corp, Loveland, CO 80538 USA.
[Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Bremer, PT (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-422, Livermore, CA 94551 USA.
EM gregnorgard@gmail.com; ptbremer@acm.org
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.
NR 23
TC 1
Z9 2
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-8396
EI 1879-2332
J9 COMPUT AIDED GEOM D
JI Comput. Aided Geom. Des.
PD JUL
PY 2013
VL 30
IS 6
SI SI
BP 577
EP 587
DI 10.1016/j.cagd.2012.03.017
PG 11
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 160WA
UT WOS:000320150000007
ER
PT J
AU Williams, SJ
Hlawitschka, M
Dillard, SE
Thoma, D
Hamann, B
AF Williams, S. J.
Hlawitschka, M.
Dillard, S. E.
Thoma, D.
Hamann, B.
TI Multi-region Delaunay complex segmentation
SO COMPUTER AIDED GEOMETRIC DESIGN
LA English
DT Article
DE Medial axis; Segmentation; Surface reconstruction; Feature extraction
ID IMAGE SEGMENTATION; WATERSHEDS
AB We focus on the problem of segmenting scattered point data into multiple regions in a single segmentation pass. To solve this problem, we begin with a set of potential boundary points and use a Delaunay triangulation to complete the boundaries. We then use information from the triangulation and its dual Voronoi complex to determine for each face whether it resembles a boundary or interior face, allowing a user to choose a specific segmentation by keeping only faces where our parameter is above a threshold. The resulting algorithm has time complexity in O (nd), where n is the number of Delaunay simplices. (C) 2012 Elsevier B.V. All rights reserved.
C1 [Williams, S. J.; Hlawitschka, M.; Hamann, B.] Univ Calif Davis, Dept Comp Sci, Inst Data Anal & Visualizat, Davis, CA 95616 USA.
[Williams, S. J.; Thoma, D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Hlawitschka, M.] Univ Leipzig, Sci Visualizat Grp, Leipzig, Germany.
[Dillard, S. E.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Williams, SJ (reprint author), Univ Calif Davis, Dept Comp Sci, Inst Data Anal & Visualizat, Davis, CA 95616 USA.
EM sjwill@ucdavis.edu; hlawitschka@ucdavis.edu; scott.dillard@pnl.gov;
thoma@lanl.gov; hamann@cs.ucdavis.edu
FU LANL-UC Davis Materials Design Institute; National Science Foundation
[CCF-0702817]; Los Alamos National Laboratory, Materials Design
Institute
FX We acknowledge the support of the LANL-UC Davis Materials Design
Institute, and especially the support and comments made by Sriram
Swaminarayan, Billy Sanders, and Dan Thoma. We thank the National
Science Foundation (CCF-0702817) and the Los Alamos National Laboratory,
Materials Design Institute for supporting this research.
NR 16
TC 0
Z9 0
U1 1
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-8396
J9 COMPUT AIDED GEOM D
JI Comput. Aided Geom. Des.
PD JUL
PY 2013
VL 30
IS 6
SI SI
BP 588
EP 596
DI 10.1016/j.cagd.2012.03.016
PG 9
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 160WA
UT WOS:000320150000008
ER
PT J
AU Norgard, G
Bremer, PT
AF Norgard, Gregory
Bremer, Peer-Timo
TI Ridge-Valley graphs: Combinatorial ridge detection using Jacobi sets
SO COMPUTER AIDED GEOMETRIC DESIGN
LA English
DT Article
DE Ridge extraction; Combinatorial algorithm; Jacobi set
ID LAGRANGIAN COHERENT STRUCTURES; DIFFUSION TENSOR MRI; ANISOTROPY
CREASES; IMAGES
AB Ridges are one of the key features of interest in areas such as computer vision and image processing. Even though a significant amount of research has been directed to defining and extracting ridges some fundamental challenges remain. For example, the most popular ridge definition (height ridge) is not invariant under monotonic transformations and its global structure is typically ignored during numerical computations. Furthermore, many existing algorithms are based on numerical heuristics and are rarely guaranteed to produce consistent results. This paper reexamines a slightly different ridge definition that is consistent with all desired invariants. Nevertheless, we show that this definition results in similar structures compared to height ridges and that both formulations are equivalent for quadratic functions. Furthermore, this definition can be cast in the form of a degenerate Jacobi set, which allows insights into the global structure of ridges. In particular, we introduce the Ridge-Valley graph as the complete description of all ridges in an image. Finally, using the connection to Jacobi sets we describe a new combinatorial algorithm to extract the Ridge-Valley graph from sampled images guaranteed to produce a valid structure. (C) 2012 Elsevier B.V. All rights reserved.
C1 [Norgard, Gregory] Numer Corp, Loveland, CO 80538 USA.
[Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Bremer, PT (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-422, Livermore, CA 94551 USA.
EM gregnorgard@gmail.com; ptbremer@acm.org
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.
NR 34
TC 2
Z9 2
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-8396
EI 1879-2332
J9 COMPUT AIDED GEOM D
JI Comput. Aided Geom. Des.
PD JUL
PY 2013
VL 30
IS 6
SI SI
BP 597
EP 608
DI 10.1016/j.cagd.2012.03.015
PG 12
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 160WA
UT WOS:000320150000009
ER
PT J
AU Pett-Ridge, J
Petersen, DG
Nuccio, E
Firestone, MK
AF Pett-Ridge, Jennifer
Petersen, Dorthe G.
Nuccio, Erin
Firestone, Mary K.
TI Influence of oxic/anoxic fluctuations on ammonia oxidizers and
nitrification potential in a wet tropical soil
SO FEMS MICROBIOLOGY ECOLOGY
LA English
DT Article
DE nitrifiers; Puerto Rico; redox oscillation; oxygen depletion; archaea;
amoA
AB Ammonia oxidation is a key process in the global nitrogen cycle. However, in tropical soils, little is known about ammonia-oxidizing microorganisms and how characteristically variable oxygen regimes affect their activity. We investigated the influence of brief anaerobic periods on ammonia oxidation along an elevation, moisture, and oxygen availability gradient in wet tropical soils. Soils from three forest types were incubated for up to 36weeks in lab microcosms under three regimes: (1) static aerobic; (2) static anaerobic; and (3) fluctuating (aerobic/anaerobic). Nitrification potential was measured in field-fresh soils and incubated soils. The native ammonia-oxidizing community was also characterized, based on diversity assessments (clone libraries) and quantification of the ammonia monooxygenase -subunit (amoA) gene. These relatively low pH soils appear to be dominated by ammonia-oxidizing archaea (AOA), and AOA communities in the three soil types differed significantly in their ability to oxidize ammonia. Soils from an intermediate elevation, and those incubated with fluctuating redox conditions, tended to have the highest nitrification potential following an influx of oxygen, although all soils retained the capacity to nitrify even after long anoxic periods. Together, these results suggest that wet tropical soil AOA are tolerant of extended periods of anoxia.
C1 [Pett-Ridge, Jennifer] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Pett-Ridge, Jennifer; Petersen, Dorthe G.; Nuccio, Erin; Firestone, Mary K.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Pett-Ridge, J (reprint author), Lawrence Livermore Natl Lab, POB 808,L-231, Livermore, CA 94551 USA.
EM pettridge2@llnl.gov
FU DOE Global Change Education Program; U.S. Department of Energy by
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Carlsberg
Foundation; Danish National Research Foundation; Max Planck Society; DOE
Genomic Sciences Program [FOA DE-PS02-09ER09-25, 0016377]; UC Toxic
Substances Teaching and Research Program; Kearney Foundation for Soil
Science
FX For part of this research, JPR was supported by a graduate fellowship
from the DOE Global Change Education Program; writing and analysis were
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
The contributions of DGP were supported by a postdoctoral grant from the
Carlsberg Foundation, the Danish National Research Foundation and the
Max Planck Society. EEN was supported by the DOE Genomic Sciences
Program (FOA DE-PS02-09ER09-25 award #0016377), a graduate fellowship by
the UC Toxic Substances Teaching and Research Program and the Kearney
Foundation for Soil Science. We thank A. Thompson and D. Herman for
technical assistance, W. Silver for advice and assistance with site
access and also C. Gubry-Rangin for affiliating the Puerto Rican
sequences with the pH amoA database from Gubry-Rangin et al. (2011).
NR 0
TC 15
Z9 15
U1 4
U2 66
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0168-6496
J9 FEMS MICROBIOL ECOL
JI FEMS Microbiol. Ecol.
PD JUL
PY 2013
VL 85
IS 1
BP 179
EP 194
DI 10.1111/1574-6941.12111
PG 16
WC Microbiology
SC Microbiology
GA 166LQ
UT WOS:000320556500016
PM 23556538
ER
PT J
AU Siering, PL
Wolfe, GV
Wilson, MS
Yip, AN
Carey, CM
Wardman, CD
Shapiro, RS
Stedman, KM
Kyle, J
Yuan, T
Nostrand, JD
He, Z
Zhou, J
AF Siering, P. L.
Wolfe, G. V.
Wilson, M. S.
Yip, A. N.
Carey, C. M.
Wardman, C. D.
Shapiro, R. S.
Stedman, K. M.
Kyle, J.
Yuan, T.
Nostrand, J. D.
He, Z.
Zhou, J.
TI Microbial biogeochemistry of Boiling Springs Lake: a physically dynamic,
oligotrophic, low-pH geothermal ecosystem
SO GEOBIOLOGY
LA English
DT Article
ID VOLCANIC-NATIONAL-PARK; ACID-MINE DRAINAGE; FUNCTIONAL GENE DIVERSITY;
GEOCHIP-BASED ANALYSIS; YELLOWSTONE LAKE; HOT-SPRINGS; NEW-ZEALAND;
SP-NOV; PHYLOGENETIC DIVERSITY; COMMUNITY COMPOSITION
AB Boiling Springs Lake (BSL) in Lassen Volcanic National Park, California, is North America's largest hot spring, but little is known about the physical, chemical, and biological features of the system. Using a remotely operated vessel, we characterized the bathymetry and near-surface temperatures at sub-meter resolution. The majority of the 1.2ha, pH 2.2 lake is 10m deep and 50-52 degrees C, but temperatures reach 93 degrees C locally. We extracted DNA from water and sediments collected from warm (52 degrees C) and hot (73-83 degrees C) sites separated by 180m. Gene clone libraries and functional gene microarray (GeoChip 3.0) were used to investigate the BSL community, and uptake of radiolabeled carbon sources was used to assess the relative importance of heterotrophic vs. autotrophic production. Microbial assemblages are similar in both sites despite the strong temperature differential, supporting observations of a dynamic, convectively mixed system. Bacteria in the Actinobacteria and Aquificales phyla are abundant in the water column, and Archaea distantly related to known taxa are abundant in sediments. The functional potential appears similar across a 5-year time span, indicating a stable community with little inter-annual variation, despite the documented seasonal temperature cycle. BSL water-derived DNA contains genes for complete C, N, and S cycles, and low hybridization to probes for N and S oxidation suggests that reductive processes dominate. Many of the detected genes for these processes were from uncultivated bacteria, suggesting novel organisms are responsible for key ecosystem services. Selection imposed by low nutrients, low pH, and high temperature appear to result in low diversity and evenness of genes for key functions involved in C, N, and S cycling. Conversely, organic degradation genes appear to be functionally redundant, and the rapid assimilation of radiolabeled organic carbon into BSL cells suggests the importance of allochthonous C fueling heterotrophic production in the BSL C cycle.
C1 [Siering, P. L.; Wilson, M. S.; Yip, A. N.; Carey, C. M.; Wardman, C. D.] Humboldt State Univ, Dept Biol Sci, Arcata, CA 95521 USA.
[Wolfe, G. V.] Calif State Univ Chico, Dept Biol Sci, Chico, CA 95929 USA.
[Shapiro, R. S.] Calif State Univ Chico, Dept Geosci & Environm Sci, Chico, CA 95929 USA.
[Stedman, K. M.; Kyle, J.] Portland State Univ, Dept Biol, Portland, OR 97207 USA.
[Stedman, K. M.; Kyle, J.] Portland State Univ, Ctr Life Extreme Environm, Portland, OR 97207 USA.
[Yuan, T.; Nostrand, J. D.; He, Z.; Zhou, J.] Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA.
[Yuan, T.; Nostrand, J. D.; He, Z.; Zhou, J.] Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA.
[Zhou, J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Siering, PL (reprint author), Humboldt State Univ, Dept Biol Sci, Arcata, CA 95521 USA.
EM pls13@humboldt.edu
FU National Science Foundation [MCB-0702018, MCB-0702069, MCB-07020 20];
HSU Howard Hughes Medical Institute [52002680]; NASA Astrobiology
Institute's Directors Discretionary Fund [NNA11AC01G]; NASA Astrobiology
Institute Post-doctoral Fellowship program
FX Funding was provided by the National Science Foundation (nos.
MCB-0702018, MCB-0702069, and MCB-07020 20), HSU Howard Hughes Medical
Institute undergraduate science education grant (no. 52002680), and a
grant from the NASA Astrobiology Institute's Directors Discretionary
Fund grant no. NNA11AC01G. Jennifer Kyle was supported by the NASA
Astrobiology Institute Post-doctoral Fellowship program. We are indebted
to PSU mechanical engineering students, who designed and built the ROV
as part of a capstone project in 2008 under the direction of Dr. Faryar
Etesami, PSU. We thank Laura Ramos for GPS data collection, and 'Mile
Brian' Peasley for assistance with the GIS programming and drafting.
Data files relating to this project have been deposited with the Lassen
Volcanic National Park Geographic Information System (LAVO GIS). We also
acknowledge Billie Reeder (CSUC) for help with ROV and sediment data
collection, Dave Brown & Rachel Teasdale (CSUC) for additional T data,
Jose De La Torre (SFSU) for sharing unpublished results, and the NPS
LVNP staff, Louise Johnson and Michael Magnuson, for their generous
efforts assisting with site access and use of LVNP Science Center
facilities for sample processing. The authors of this manuscript have no
conflict of interest to declare with respect to publication of this
manuscript.
NR 98
TC 7
Z9 7
U1 5
U2 77
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1472-4677
J9 GEOBIOLOGY
JI Geobiology
PD JUL
PY 2013
VL 11
IS 4
BP 356
EP 376
DI 10.1111/gbi.12041
PG 21
WC Biology; Environmental Sciences; Geosciences, Multidisciplinary
SC Life Sciences & Biomedicine - Other Topics; Environmental Sciences &
Ecology; Geology
GA 166KH
UT WOS:000320552800005
PM 23679065
ER
PT J
AU Elbaz, L
Garzon, FH
AF Elbaz, Lior
Garzon, Fernando H.
TI Increasing the site density of non-precious metal catalysts in fuel cell
electrodes
SO JOURNAL OF ELECTROANALYTICAL CHEMISTRY
LA English
DT Article
DE Dipyrromethane; Non-precious metal catalyst; Oxygen reduction;
Electropolymerization
ID ELECTROPOLYMERIZATION; POLYPYRROLE; PORPHYRIN; PYRROLE
AB Development of new non-precious metal based catalysts for fuel cells is crucial for the viability of the technology. This class of catalysts has relatively low turnover frequencies for oxygen reduction reaction (ORR) when compared to platinum. One way to compensate for it is to increase the catalyst site density. In this work, a model system for a high site density catalytic layer for polymer electrolyte fuel cells was synthesized and characterized. Dipyrromethane was electropolymerized on glassy carbon and glass/ITO electrodes to form a ligand matrix of up to 200 nm in thickness, to which, cobalt was introduced during the electropolymerization process. Thin polymeric sheets were observed after the electrochemical synthesis and the cobalt density in the matrix was found to be 9.84 x 10(21) cobalt atoms cm(-3). ORR activity was demonstrated with oxygen reduction occurring at E-1/2 = 0.45 V and has an onset potential of 0.62 V vs. RHE. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Elbaz, Lior; Garzon, Fernando H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Elbaz, L (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM lior.elbaz@hotmail.com
FU U.S. Department of Energy Fuel Cell Technologies Program
FX The authors wish to thank the U.S. Department of Energy Fuel Cell
Technologies Program for providing funding for this work.
NR 17
TC 3
Z9 3
U1 1
U2 48
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 1572-6657
J9 J ELECTROANAL CHEM
JI J. Electroanal. Chem.
PD JUL 1
PY 2013
VL 700
BP 65
EP 69
DI 10.1016/j.jelechem.2013.04.013
PG 5
WC Chemistry, Analytical; Electrochemistry
SC Chemistry; Electrochemistry
GA 164NQ
UT WOS:000320417200011
ER
PT J
AU Kelleher, NL
Pasa-Tolic, L
AF Kelleher, Neil L.
Pasa-Tolic, Ljiljana
TI 25(th) ASMS Sanibel Conference on Top Down Mass Spectrometry
SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
LA English
DT Article
C1 [Kelleher, Neil L.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Kelleher, Neil L.] Northwestern Univ, Dept Mol Biosci, Evanston, IL USA.
[Pasa-Tolic, Ljiljana] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Kelleher, NL (reprint author), Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
EM n-kelleher@northwestern.edu
NR 0
TC 1
Z9 1
U1 1
U2 14
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1044-0305
J9 J AM SOC MASS SPECTR
JI J. Am. Soc. Mass Spectrom.
PD JUL
PY 2013
VL 24
IS 7
BP 983
EP 985
DI 10.1007/s13361-013-0640-y
PG 3
WC Biochemical Research Methods; Chemistry, Analytical; Chemistry,
Physical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA 162RW
UT WOS:000320284000002
PM 23673522
ER
PT J
AU Chen, XW
Alonso, AP
Shachar-Hill, Y
AF Chen, Xuewen
Alonso, Ana P.
Shachar-Hill, Yair
TI Dynamic metabolic flux analysis of plant cell wall synthesis
SO METABOLIC ENGINEERING
LA English
DT Article
DE Dynamic metabolic flux analysis; Plant cell wall; Sucrose invertase;
Metabolic engineering; Bioenergy crops
ID BIDIRECTIONAL REACTION STEPS; POTATO-TUBER TISSUE; SUCROSE SYNTHASE;
PHENYLPROPANOID PATHWAY; ARABIDOPSIS-THALIANA; LABELING EXPERIMENTS;
STATISTICAL-ANALYSIS; MASS-SPECTROMETRY; BIOSYNTHESIS; NETWORKS
AB The regulation of plant cell wall synthesis pathways remains poorly understood. This has become a bottleneck in designing bioenergy crops. The goal of this study was to analyze the regulation of plant cell wall precursor metabolism using metabolic flux analysis based on dynamic labeling experiments. Arabidopsis T87 cells were cultured heterotrophically with C-13 labeled sucrose. The time course of C-13 labeling patterns in cell wall precursors and related sugar phosphates was monitored using liquid chromatography tandem mass spectrometry until steady state labeling was reached. A kinetic model based on mass action reaction mechanisms was developed to simulate the carbon flow in the cell wall synthesis network. The kinetic parameters of the model were determined by fitting the model to the labeling time course data, cell wall composition, and synthesis rates. A metabolic control analysis was performed to predict metabolic regulations that may improve plant biomass composition for biofuel production. Our results describe the routes and rates of carbon flow from sucrose to cell wall precursors. We found that sucrose invertase is responsible for the entry of sucrose into metabolism and UDP-glucose-4-epimerase plays a dominant role in UDP-Gal synthesis in heterotrophic Aradidopsis cells under aerobic conditions. We also predicted reactions that exert strong regulatory influence over carbon flow to cell wall synthesis and its composition. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Chen, Xuewen; Shachar-Hill, Yair] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
[Chen, Xuewen; Shachar-Hill, Yair] Michigan State Univ, Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
[Alonso, Ana P.] Ohio State Univ, Dept Mol Genet, Columbus, OH 43210 USA.
RP Chen, XW (reprint author), Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
EM xwchen@msu.edu
FU DOE Center for Plant and Microbial Complex Carbohydrates
[DE-FG02-09ER-20097]; Great Lakes Bioenergy Research Center (DOE BER
Office of Science) [DE-FC02-07ER64494]
FX The authors would like to thank Drs. Dan Jones and Lijun Chen (MSU Mass
Spectrometry Facility) for expert help with instrumental analyses; Dr.
Hart Poskar for his effort on developing previous versions of the model;
Tina M. Martin, Rebecca J. Piasecki and Russell W LaClair for their
technical support in cell cultures, enzyme assays and LC-MS/MS analyses;
We are also grateful to Dr. Thomas Maiwald for his assistance on
PottersWheel. The Glycosyl composition analysis was performed at the
DOE-funded (DE-FG02-09ER-20097) Center for Plant and Microbial Complex
Carbohydrates. This work was supported by the Great Lakes Bioenergy
Research Center (DOE BER Office of Science DE-FC02-07ER64494).
NR 62
TC 14
Z9 14
U1 4
U2 67
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1096-7176
J9 METAB ENG
JI Metab. Eng.
PD JUL
PY 2013
VL 18
BP 78
EP 85
DI 10.1016/j.ymben.2013.04.006
PG 8
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 165JC
UT WOS:000320478800009
PM 23644173
ER
PT J
AU Hang, B
Sarker, AH
Havel, C
Saha, S
Hazra, TK
Schick, S
Jacob, P
Rehan, VK
Chenna, A
Sharan, D
Sleiman, M
Destaillats, H
Gundel, LA
AF Hang, Bo
Sarker, Altaf H.
Havel, Christopher
Saha, Saikat
Hazra, Tapas K.
Schick, Suzaynn
Jacob, Peyton, III
Rehan, Virender K.
Chenna, Ahmed
Sharan, Divya
Sleiman, Mohamad
Destaillats, Hugo
Gundel, Lara A.
TI Thirdhand smoke causes DNA damage in human cells
SO MUTAGENESIS
LA English
DT Article
ID ENVIRONMENTAL TOBACCO-SMOKE; CIGARETTE-SMOKE; COMET ASSAY;
4-(METHYLNITROSAMINO)-1-(3-PYRIDYL)-1-BUTANONE NNK; INDIVIDUAL CELLS;
N-NITROSAMINES; LUNG-CANCER; INDOOR AIR; EXPOSURE; NICOTINE
AB Exposure to thirdhand smoke (THS) is a newly described health risk. Evidence supports its widespread presence in indoor environments. However, its genotoxic potential, a critical aspect in risk assessment, is virtually untested. An important characteristic of THS is its ability to undergo chemical transformations during aging periods, as demonstrated in a recent study showing that sorbed nicotine reacts with the indoor pollutant nitrous acid (HONO) to form tobacco-specific nitrosamines (TSNAs) such as 4-(methylnitrosamino)-4-(3-pyridyl)butanal (NNA) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). The goal of this study was to assess the genotoxicity of THS in human cell lines using two in vitro assays. THS was generated in laboratory systems that simulated short (acute)- and long (chronic)-term exposures. Analysis by liquid chromatographytandem mass spectrometry quantified TSNAs and common tobacco alkaloids in extracts of THS that had sorbed onto cellulose substrates. Exposure of human HepG2 cells to either acute or chronic THS for 24h resulted in significant increases in DNA strand breaks in the alkaline Comet assay. Cell cultures exposed to NNA alone showed significantly higher levels of DNA damage in the same assay. NNA is absent in freshly emitted secondhand smoke, but it is the main TSNA formed in THS when nicotine reacts with HONO long after smoking takes place. The long ampliconquantitative PCR assay quantified significantly higher levels of oxidative DNA damage in hypoxanthine phosphoribosyltransferase 1 (HPRT) and polymerase (POLB) genes of cultured human cells exposed to chronic THS for 24h compared with untreated cells, suggesting that THS exposure is related to increased oxidative stress and could be an important contributing factor in THS-mediated toxicity. The findings of this study demonstrate for the first time that exposure to THS is genotoxic in human cell lines.
C1 [Hang, Bo; Sarker, Altaf H.; Sharan, Divya] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Havel, Christopher; Schick, Suzaynn; Jacob, Peyton, III] Univ Calif San Francisco, San Francisco Gen Hosp Med Ctr, Dept Med, San Francisco, CA 94110 USA.
[Saha, Saikat; Hazra, Tapas K.] Univ Texas Med Branch, Div Pulm & Crit Care Med, Galveston, TX 77555 USA.
[Rehan, Virender K.] UCLA, David Geffen Sch Med, Harbor UCLA Med Ctr, Los Angeles Biomed Res Inst, Torrance, CA 90502 USA.
[Chenna, Ahmed] Monogram Biosci Inc, San Francisco, CA 94080 USA.
[Sleiman, Mohamad; Destaillats, Hugo; Gundel, Lara A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Hang, B (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Dept Canc & DNA Damage Responses, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM Bo_Hang@lbl.gov
FU University of California Tobacco-Related Disease Research Program
(TRDRP), under U.S. Department of Energy [19XT-0070, 20PT-0184,
DE-AC02-05CH11231]; TRDRP [20KT-0051]
FX This work was supported by the Grant 19XT-0070 (to B. H.) and Grant
20PT-0184 (California Thirdhand Smoke Consortium) from the University of
California Tobacco-Related Disease Research Program (TRDRP), under U.S.
Department of Energy (Contract no. DE-AC02-05CH11231). M. S. was
supported by TRDRP New Investigator Grant 20KT-0051. Instrumentation and
analytical chemistry at UCSF were supported by the National Institutes
of Health (S10 RR026437 to P.J.) and (P30 DA012393 to Reese T. Jones,
PI).
NR 48
TC 38
Z9 41
U1 5
U2 55
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0267-8357
EI 1464-3804
J9 MUTAGENESIS
JI Mutagenesis
PD JUL
PY 2013
VL 28
IS 4
BP 381
EP 391
DI 10.1093/mutage/get013
PG 11
WC Genetics & Heredity; Toxicology
SC Genetics & Heredity; Toxicology
GA 165EE
UT WOS:000320465100002
PM 23462851
ER
PT J
AU Bohac, DL
Hewett, MJ
Kapphahn, KI
Novacheck, J
Grimsrud, DT
Apte, MG
Gundel, LA
AF Bohac, David L.
Hewett, Martha J.
Kapphahn, Kristopher I.
Novacheck, Joshua
Grimsrud, David T.
Apte, Michael G.
Gundel, Lara A.
TI Secondhand Smoke Exposure in the Nonsmoking Section: How Much
Protection?
SO NICOTINE & TOBACCO RESEARCH
LA English
DT Article
ID ENVIRONMENTAL TOBACCO-SMOKE; BARS; RESTAURANTS; HEALTH; CAFES; PUBS
AB Secondhand smoke (SHS) exposure continues to be a problem in bars and restaurants where smoking is permitted. This study measures the relative SHS exposure reduction in nonsmoking sections of establishments that allow some smoking.
Measurements were conducted simultaneously in the smoking and nonsmoking sections of 14 Minnesota hospitality venues. All of the 16 two-hr visits included photometer measurements of fine particles (PM2.5) and 12 of the visits also included measurements of 4 gas-phase tracers of SHS.
The median ratio of nonsmoking/smoking section PM2.5 concentrations was 0.65 with an interquartile range (IQR) of 0.490.72. Measurements conducted after implementation of a smoking ban at 13 of the venues resulted in a smoking section PM2.5 post-ban/pre-ban ratio of 0.06 (IQR 0.020.16). The median nonsmoking/smoking section ratios for gas-phase compound were 0.67 (IQR 0.350.78) for pyridine, 0.52 (IQR 0.300.70) for pyrrole, 0.43 (IQR 0.350.84) for 3-EP, and 0.27 (IQR 0.160.47) for nicotine. These results are consistent with the expectations of differential removal: the lowest ratios are for the least volatile, most strongly sorbing gases and the highest ratios for less sorbing gases and PM2.5.
Designated nonsmoking sections in establishments that allow some smoking resulted in a median PM2.5 reduction of 35% compared with a 94% reduction after a smoking ban. The only adequate protection from cigarette smoke exposure is to eliminate smoking in indoor spaces.
C1 [Bohac, David L.; Hewett, Martha J.; Kapphahn, Kristopher I.; Novacheck, Joshua] Ctr Energy & Environm, Minneapolis, MN 55401 USA.
[Grimsrud, David T.] Univ Minnesota, Dept Bioprod Engn, St Paul, MN 55108 USA.
[Grimsrud, David T.] Univ Minnesota, Dept Biosyst Engn, St Paul, MN 55108 USA.
[Apte, Michael G.; Gundel, Lara A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Bohac, DL (reprint author), Ctr Energy & Environm, 212 3rd Ave North,Suite 560, Minneapolis, MN 55401 USA.
EM dbohac@mncee.org
FU ClearWay MinnesotaSM [RC 2006-0050]
FX This work was supported by ClearWay MinnesotaSM (RC 2006-0050).
NR 21
TC 2
Z9 2
U1 1
U2 12
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1462-2203
J9 NICOTINE TOB RES
JI Nicotine Tob. Res.
PD JUL
PY 2013
VL 15
IS 7
BP 1265
EP 1272
DI 10.1093/ntr/nts263
PG 8
WC Substance Abuse; Public, Environmental & Occupational Health
SC Substance Abuse; Public, Environmental & Occupational Health
GA 165EG
UT WOS:000320465300011
PM 23239842
ER
PT J
AU Bertelli, N
Wallace, G
Bonoli, PT
Harvey, RW
Smirnov, AP
Baek, SG
Parker, RR
Phillips, CK
Valeo, EJ
Wilson, JR
Wright, JC
AF Bertelli, N.
Wallace, G.
Bonoli, P. T.
Harvey, R. W.
Smirnov, A. P.
Baek, S. G.
Parker, R. R.
Phillips, C. K.
Valeo, E. J.
Wilson, J. R.
Wright, J. C.
TI The effects of the scattering by edge plasma density fluctuations on
lower hybrid wave propagation
SO PLASMA PHYSICS AND CONTROLLED FUSION
LA English
DT Article; Proceedings Paper
CT 13th Joint Varenna-Lausanne International Workshop on the Theory of
Fusion Plasmas
CY AUG 27-31, 2012
CL Varenna, ITALY
ID SCRAPE-OFF LAYER; ALCATOR C-MOD; CURRENT DRIVE; TURBULENCE; TRANSPORT;
TOKAMAKS
AB Scattering effects induced by edge density fluctuations on lower hybrid (LH) wave propagation are investigated. The scattering model used here is based on the work of Bonoli and Ott (1982 Phys. Fluids 25 361). It utilizes an electromagnetic wave kinetic equation solved by a Monte Carlo technique. This scattering model has been implemented in GENRAY, a ray-tracing code which explicitly simulates wave propagation, as well as collisionless and collisional damping processes, over the entire plasma discharge, including the scrape-off layer that extends from the separatrix to the vessel wall. A numerical analysis of the LH wave trajectories and the power deposition profile with and without scattering is presented for Alcator C-Mod discharges. Comparisons between the measured hard x-ray emission on Alcator C-Mod and simulations of the data obtained from the synthetic diagnostic included in the GENRAY/CQL3D package are shown, with and without the combination of scattering and collisional damping. Implications of these results on LH current drive are discussed.
C1 [Bertelli, N.; Phillips, C. K.; Valeo, E. J.; Wilson, J. R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Wallace, G.; Bonoli, P. T.; Baek, S. G.; Parker, R. R.; Wright, J. C.] MIT Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Harvey, R. W.] CompX, Del Mar, CA 92014 USA.
[Smirnov, A. P.] Moscow MV Lomonosov State Univ, Moscow, Russia.
RP Bertelli, N (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
EM nbertell@pppl.gov
RI Smirnov, Alexander /A-4886-2014
NR 34
TC 17
Z9 17
U1 1
U2 15
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0741-3335
J9 PLASMA PHYS CONTR F
JI Plasma Phys. Control. Fusion
PD JUL
PY 2013
VL 55
IS 7
AR 074003
DI 10.1088/0741-3335/55/7/074003
PG 10
WC Physics, Fluids & Plasmas
SC Physics
GA 163XZ
UT WOS:000320373200004
ER
PT J
AU Veranda, M
Bonfiglio, D
Cappello, S
Chacon, L
Escande, DF
AF Veranda, M.
Bonfiglio, D.
Cappello, S.
Chacon, L.
Escande, D. F.
TI Impact of helical boundary conditions on nonlinear 3D
magnetohydrodynamic simulations of reversed-field pinch
SO PLASMA PHYSICS AND CONTROLLED FUSION
LA English
DT Article; Proceedings Paper
CT 13th Joint Varenna-Lausanne International Workshop on the Theory of
Fusion Plasmas
CY AUG 27-31, 2012
CL Varenna, ITALY
ID MHD; BIFURCATION; PLASMAS
AB Helical self-organized reversed-field pinch (RFP) regimes emerge both numerically-in 3D visco-resistive magnetohydrodynamic (MHD) simulations-and experimentally, as in the RFX-mod device at high current (I-P above 1 MA). These states, called quasi-single helicity (QSH) states, are characterized by the action of a MHD mode that impresses a quasi-helical symmetry to the system, thus allowing a high degree of magnetic chaos healing. This is in contrast with the multiple helicity (MH) states, where magnetic fluctuations create a chaotic magnetic field degrading the confinement properties of the RFP. This paper reports an extensive numerical study performed in the frame of 3D visco-resistive MHD which considers the effect of helical magnetic boundary conditions, i.e. of a finite value of the radial magnetic field at the edge (magnetic perturbation, MP). We show that the system can be driven to a selected QSH state starting from both spontaneous QSH and MH regimes. In particular, a high enough MP can force a QSH helical self-organization with a helicity different from the spontaneous one. Moreover, MH states can be turned into QSH states with a selected helicity. A threshold in the amplitude of MP is observed above which is able to influence the system. Analysis of the magnetic topology of these simulations indicates that the dominant helical mode is able to temporarily sustain conserved magnetic structures in the core of the plasma. The region occupied by conserved magnetic surfaces increases reducing secondary modes' amplitude to experimental-like values.
C1 [Veranda, M.; Bonfiglio, D.; Cappello, S.] Assoc Euratom ENEA, Consorzio RFX, Padua, Italy.
[Chacon, L.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Escande, D. F.] Aix Marseille Univ, CNRS, UMR 6633, Lab PIIM, Marseille, France.
RP Veranda, M (reprint author), Assoc Euratom ENEA, Consorzio RFX, Padua, Italy.
EM marco.veranda@igi.cnr.it
RI Bonfiglio, Daniele/I-9398-2012; Cappello, Susanna/H-9968-2013;
OI Bonfiglio, Daniele/0000-0003-2638-317X; Cappello,
Susanna/0000-0002-2022-1113; Escande, Dominique/0000-0002-0460-8385;
Chacon, Luis/0000-0002-4566-8763
NR 27
TC 11
Z9 11
U1 5
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0741-3335
J9 PLASMA PHYS CONTR F
JI Plasma Phys. Control. Fusion
PD JUL
PY 2013
VL 55
IS 7
AR 074015
DI 10.1088/0741-3335/55/7/074015
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 163XZ
UT WOS:000320373200016
ER
PT J
AU Der, BS
Jha, RK
Lewis, SM
Thompson, PM
Guntas, G
Kuhlman, B
AF Der, Bryan S.
Jha, Raamesh K.
Lewis, Steven M.
Thompson, Peter M.
Guntas, Gurkan
Kuhlman, Brian
TI Combined computational design of a zinc-binding site and a
protein-protein interaction: One open zinc coordination site was not a
robust hotspot for de novo ubiquitin binding
SO PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS
LA English
DT Article
DE computational interface design; de novo; heterodimer; metal
coordination; zinc binding; protein-protein interaction
ID DEPENDENT ROTAMER LIBRARY; PROLACTIN RECEPTOR; RECOGNITION SITES;
GROWTH-HORMONE; INTERFACES; PAIR; HOMODIMER; AFFINITY; BARSTAR; DOMAINS
AB We computationally designed a de novo protein-protein interaction between wild-type ubiquitin and a redesigned scaffold. Our strategy was to incorporate zinc at the designed interface to promote affinity and orientation specificity. A large set of monomeric scaffold surfaces were computationally engineered with three-residue zinc coordination sites, and the ubiquitin residue H68 was docked to the open coordination site to complete a tetrahedral zinc site. This single coordination bond was intended as a hotspot and polar interaction for ubiquitin binding, and surrounding residues on the scaffold were optimized primarily as hydrophobic residues using a rotamer-based sequence design protocol in Rosetta. From thousands of independent design simulations, four sequences were selected for experimental characterization. The best performing design, called Spelter, binds tightly to zinc (Kd<10 nM) and binds ubiquitin with a Kd of 20 mu M in the presence of zinc and 68 mu M in the absence of zinc. Mutagenesis studies and nuclear magnetic resonance chemical shift perturbation experiments indicate that Spelter interacts with H68 and the target surface on ubiquitin; however, H68 does not form a hotspot as intended. Instead, mutation of H68 to alanine results in tighter binding. Although a 3/1 zinc coordination arrangement at an interface cannot be ruled out as a means to improve affinity, our study led us to conclude that 2/2 coordination arrangements or multiple-zinc designs are more likely to promote high-affinity protein interactions. Proteins 2013; 81:1245-1255. (c) 2013 Wiley Periodicals, Inc.
C1 [Der, Bryan S.; Jha, Raamesh K.; Lewis, Steven M.; Thompson, Peter M.; Guntas, Gurkan; Kuhlman, Brian] Univ N Carolina, Dept Biochem & Biophys, Chapel Hill, NC 27599 USA.
[Jha, Raamesh K.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
[Kuhlman, Brian] Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA.
RP Kuhlman, B (reprint author), Univ N Carolina, Sch Med, Dept Biochem & Biophys, Campus Box, Chapel Hill, NC 27599 USA.
EM bkuhlman@email.unc.edu
OI Thompson, Peter/0000-0001-7562-6049; Jha, Ramesh/0000-0001-5904-3441
FU National Institutes of Health [GM073960, T32GM008570]; National Science
Foundation graduate research fellowship [2009070950, 2008072760];
University of North Carolina Royster Society Pogue fellowship
FX Grant sponsor: National Institutes of Health; Grant numbers: GM073960
and T32GM008570; Grant sponsor: National Science Foundation graduate
research fellowship; Grant numbers: 2009070950 (to B. D.) and 2008072760
(to P. T.); Grant sponsor: University of North Carolina Royster Society
Pogue fellowship (to S. L. and B.D).
NR 62
TC 6
Z9 6
U1 0
U2 12
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-3585
J9 PROTEINS
JI Proteins
PD JUL
PY 2013
VL 81
IS 7
BP 1245
EP 1255
DI 10.1002/prot.24280
PG 11
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 165HK
UT WOS:000320474100014
PM 23504819
ER
PT J
AU Tice, JD
Bassett, TA
Desai, AV
Apblett, CA
Kenis, PJA
AF Tice, Joshua D.
Bassett, Thomas A.
Desai, Amit V.
Apblett, Christopher A.
Kenis, Paul J. A.
TI A monolithic poly(dimethylsiloxane) electrostatic actuator for
controlling integrated pneumatic microsystems
SO SENSORS AND ACTUATORS A-PHYSICAL
LA English
DT Article
DE Electrostatic actuator; Microvalve; Microfluidics; Soft-lithography;
Pneumatic microsystems
ID NANOTUBE-POLYMER COMPOSITES; LARGE-SCALE INTEGRATION; TRANSPARENT;
MICROFLUIDICS; MICROVALVE; MEMBRANE; ADHESION; VALVES; FILMS; MEMS
AB Although pneumatic microvalves are widely utilized in microfluidic systems, they are rarely used in portable applications due to the bulky ancillary equipment required for their actuation. The microvalves rely on transducers that convert electrical signals into mechanical forces, and the miniaturization and integration of these transducers has proven to be challenging. Here, we report a strategy for operating pneumatic valves where microscale electrostatic actuators were used to relay commands from electronic ancillaries. Each electrostatic actuator occupied a footprint less than 0.5 mm(2), and was composed entirely of poly(dimethylsiloxane) and multi-walled carbon nanotubes. Similar to typical pneumatic microvalves, the electrostatic actuators were fabricated exclusively with soft-lithographic techniques, which permitted both components to be integrated monolithically. The actuators operated at electric potentials less than 300V, and regulated microchannels pressurized up to similar to 4 kPa, which is sufficient for many microfluidic applications. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Tice, Joshua D.; Bassett, Thomas A.; Desai, Amit V.; Kenis, Paul J. A.] Univ Illinois, Dept Chem & Biomol Engn, Urbana, IL 61801 USA.
[Apblett, Christopher A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Apblett, Christopher A.] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA.
RP Kenis, PJA (reprint author), 600 South Mathews Ave, Urbana, IL 61801 USA.
EM kenis@illinois.edu
RI Kenis, Paul/S-7229-2016
OI Kenis, Paul/0000-0001-7348-0381
FU Sandia National Laboratories; DOE [LDRD PR 922327]; Center for Nanoscale
Chemical Electrical Mechanical Manufacturing Systems at the University
of Illinois; NSF [DMI-0328162]; Center for Microanalysis of Materials in
the Frederick Seitz Materials Research Laboratory Central Facilities at
the University of Illinois
FX We thank Dr. Gregory Ten Eyck, Andrew Collard, and Christopher Hamlin
for performing preliminary fabrication and characterization. Dane
Sievers assisted in measuring the sheet resistance of the carbon
nanotube electrodes. Dr. James Wentz provided electrical testing
equipment. We also gratefully acknowledge financial support from Sandia
National Laboratories, funded by the DOE through grant LDRD PR#922327;
the Center for Nanoscale Chemical Electrical Mechanical Manufacturing
Systems at the University of Illinois, funded by the NSF through grant
DMI-0328162; and the Center for Microanalysis of Materials in the
Frederick Seitz Materials Research Laboratory Central Facilities at the
University of Illinois.
NR 41
TC 6
Z9 6
U1 2
U2 34
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0924-4247
J9 SENSOR ACTUAT A-PHYS
JI Sens. Actuator A-Phys.
PD JUL 1
PY 2013
VL 196
BP 22
EP 29
DI 10.1016/j.sna.2013.03.020
PG 8
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA 161RI
UT WOS:000320210600004
ER
PT J
AU Vlasko-Vlasov, V
Benseman, T
Welp, U
Kwok, WK
AF Vlasko-Vlasov, V.
Benseman, T.
Welp, U.
Kwok, W. K.
TI Jamming of superconducting vortices in a funnel structure
SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY
LA English
DT Article
ID CRITICAL-CURRENT-DENSITY; T-C SUPERCONDUCTORS; TEMPERATURE-DEPENDENCE;
TRANSPORT; YBA2CU3O7-DELTA; CRYSTALS; CURRENTS; SYSTEMS; DRIVEN
AB We report direct visual evidence of vortex retardation in a funnel structure patterned into a twin free YBCO crystal using laser lithography and ion milling. Magneto-optical images of flux entry with changing applied magnetic field show delayed flux propagation near the narrow end of the funnel which we interpret as a result of the jamming of vortices in the funnel neck. Furthermore, with AC magnetic fields, we observe the formation of macroturbulent flux domains whose motion is arrested at the constricted end of the funnel due to vortex jamming.
C1 [Vlasko-Vlasov, V.; Benseman, T.; Welp, U.; Kwok, W. K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Vlasko-Vlasov, V (reprint author), Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
EM vlasko-vlasov@anl.gov
FU Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX This work was supported by the Department of Energy, Office of Basic
Energy Sciences, under contract no. DE-AC02-06CH11357.
NR 36
TC 2
Z9 2
U1 2
U2 12
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-2048
J9 SUPERCOND SCI TECH
JI Supercond. Sci. Technol.
PD JUL
PY 2013
VL 26
IS 7
AR 075023
DI 10.1088/0953-2048/26/7/075023
PG 8
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 158LW
UT WOS:000319973800031
ER
PT J
AU Polini, A
Bai, H
Tomsia, AP
AF Polini, Alessandro
Bai, Hao
Tomsia, Antoni P.
TI Dental applications of nanostructured bioactive glass and its composites
SO WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
LA English
DT Review
ID BONE TISSUE REGENERATION; DRUG-DELIVERY; IN-VITRO; PERIODONTAL
REGENERATION; SCAFFOLDS; RELEASE; MATRIX; DIFFERENTIATION;
NANOCOMPOSITE; NANOPARTICLES
AB To improve treatments of bone or dental trauma and diseases such as osteoporosis, cancer, and infections, scientists who perform basic research are collaborating with clinicians to design and test new biomaterials for the regeneration of lost or injured tissue. Developed some 40 years ago, bioactive glass (BG) has recently become one of the most promising biomaterials, a consequence of discoveries that its unusual properties elicit specific biological responses inside the body. Among these important properties are the capability of BG to form strong interfaces with both hard and soft tissues, and its release of ions upon dissolution. Recent developments in nanotechnology have introduced opportunities for materials sciences to advance dental and bone therapies. For example, the applications for BG expand as it becomes possible to finely control structures and physicochemical properties of materials at the molecular level. Here, we review how the properties of these materials have been enhanced by the advent of nanotechnology, and how these developments are producing promising results in hard-tissue regeneration and development of innovative BG-based drug delivery systems. WIREs Nanomed Nanobiotechnol 2013, 5:399-410. doi: 10.1002/wnan.1224 For further resources related to this article, please visit the WIREs website. Conflict of interest: The authors have declared no conflicts of interest for this article.
C1 [Polini, Alessandro; Bai, Hao; Tomsia, Antoni P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Polini, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM apolini@lbl.gov
RI Polini, Alessandro/A-2077-2012; Bai, Hao/J-5255-2012; Bai,
Hao/D-1713-2017
OI Polini, Alessandro/0000-0002-3188-983X; Bai, Hao/0000-0002-1707-4976;
Bai, Hao/0000-0002-3348-6129
FU National Institutes of Health/National Institute of Dental and
Craniofacial Research (NIH/NIDCR) [1R01DE015633]
FX This work was supported by the National Institutes of Health/National
Institute of Dental and Craniofacial Research (NIH/NIDCR) Grant No.
1R01DE015633.
NR 85
TC 7
Z9 7
U1 10
U2 54
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1939-5116
J9 WIRES NANOMED NANOBI
JI Wiley Interdiscip. Rev.-Nanomed. Nanobiotechnol.
PD JUL-AUG
PY 2013
VL 5
IS 4
BP 399
EP 410
DI 10.1002/wnan.1224
PG 12
WC Nanoscience & Nanotechnology; Medicine, Research & Experimental
SC Science & Technology - Other Topics; Research & Experimental Medicine
GA 164IV
UT WOS:000320403500008
PM 23606653
ER
PT J
AU Bent, ZW
Tran-Gyamfi, MB
Langevin, SA
Brazel, DM
Hamblin, RY
Branda, SS
Patel, KD
Lane, TW
VanderNoot, VA
AF Bent, Zachary W.
Tran-Gyamfi, Mary B.
Langevin, Stanley A.
Brazel, David M.
Hamblin, Rachelle Y.
Branda, Steven S.
Patel, Kamlesh D.
Lane, Todd W.
VanderNoot, Victoria A.
TI Enriching pathogen transcripts from infected samples: A capture-based
approach to enhanced host-pathogen RNA sequencing
SO ANALYTICAL BIOCHEMISTRY
LA English
DT Article
DE Capture; RNA-Seq; Transcript enrichment; Next-generation sequencing;
Rift Valley fever virus; Francisella tularensis
ID FRANCISELLA-TULARENSIS; VIRULENCE; SYSTEMS; CELLS; CHROMATOGRAPHY;
EXPRESSION; MODEL; SEQ; DNA
AB To fully understand the interactions of a pathogen with its host, it is necessary to analyze the RNA transcripts of both the host and pathogen throughout the course of an infection. Although this can be accomplished relatively easily on the host side, the analysis of pathogen transcripts is complicated by the overwhelming amount of host RNA isolated from an infected sample. Even with the read depth provided by second-generation sequencing, it is extremely difficult to get enough pathogen reads for an effective gene-level analysis. In this study, we describe a novel capture-based technique and device that considerably enriches for pathogen transcripts from infected samples. This versatile method can, in principle, enrich for any pathogen in any infected sample. To test the technique's efficacy, we performed time course tissue culture infections using Rift Valley fever virus and Francisella tularensis. At each time point, RNA sequencing (RNA-Seq) was performed and the results of the treated samples were compared with untreated controls. The capture of pathogen transcripts, in all cases, led to more than an order of magnitude enrichment of pathogen reads, greatly increasing the number of genes hit, the coverage of those genes, and the depth at which each transcript was sequenced. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Bent, Zachary W.; Tran-Gyamfi, Mary B.; Langevin, Stanley A.; Brazel, David M.; Hamblin, Rachelle Y.; Branda, Steven S.; Patel, Kamlesh D.; Lane, Todd W.; VanderNoot, Victoria A.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP VanderNoot, VA (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM vavande@sandia.gov
OI Brazel, David/0000-0001-5361-2498; Lane, Todd/0000-0002-5816-2649
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multi-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000. The authors
thank the staff members of the Vincent J. Coates Sequencing Laboratory
for their assistance and insight.
NR 32
TC 9
Z9 9
U1 0
U2 35
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0003-2697
J9 ANAL BIOCHEM
JI Anal. Biochem.
PD JUL 1
PY 2013
VL 438
IS 1
BP 90
EP 96
DI 10.1016/j.ab.2013.03.008
PG 7
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 156SW
UT WOS:000319845200015
PM 23535274
ER
PT J
AU Mishra, U
Torn, MS
Fingerman, K
AF Mishra, Umakant
Torn, Margaret S.
Fingerman, Kevin
TI Miscanthus biomass productivity within US croplands and its potential
impact on soil organic carbon
SO GLOBAL CHANGE BIOLOGY BIOENERGY
LA English
DT Article
DE biofuel; biomass; carbon sequestration; cropland; miscanthus; soil
organic carbon
ID LAND-USE CHANGE; BIOENERGY PRODUCTION; C-13 ABUNDANCE; ENERGY CROP;
WATER-USE; BIOFUELS; SEQUESTRATION; EMISSIONS; MODEL; SCALE
AB Interest in bioenergy crops is increasing due to their potential to reduce greenhouse gas emissions and dependence on fossil fuels. We combined process-based and geospatial models to estimate the potential biomass productivity of miscanthus and its potential impact on soil carbon stocks in the croplands of the continental United States. The optimum (climatic potential) rainfed productivity for field-dried miscanthus biomass ranged from 1 to 23Mgbiomassha-1yr-1, with a spatial average of 13Mgha-1yr-1 and a coefficient of variation of 30%. This variation resulted primarily from the spatial heterogeneity of effective rainfall, growing degree days, temperature, and solar radiation interception. Cultivating miscanthus would result in a soil organic carbon (SOC) sequestration at the rate of 0.16-0.82MgCha-1yr-1 across the croplands due to cessation of tillage and increased biomass carbon input into the soil system. We identified about 81millionha of cropland, primarily in the eastern United States, that could sustain economically viable (>10Mgha-1yr-1) production without supplemental irrigation, of which about 14millionha would reach optimal miscanthus growth. To meet targets of the US Energy Independence and Security Act of 2007 using miscanthus as feedstock, 19millionha of cropland would be needed (spatial average 13Mgha-1yr-1) or about 16% less than is currently dedicated to US corn-based ethanol production.
C1 [Mishra, Umakant; Torn, Margaret S.] Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Torn, Margaret S.; Fingerman, Kevin] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
RP Mishra, U (reprint author), Argonne Natl Lab, Div Environm Sci, 9700 Cass Ave Bldg 240, Argonne, IL 60439 USA.
EM umishra@anl.gov
RI Mishra, Umakant/H-8128-2013; Torn, Margaret/D-2305-2015
FU Energy Biosciences Institute, University of California Berkeley; Office
of Science, Office of Biological and Environmental Research, Climate and
Environmental Science Division of the US Department of Energy
[DE-AC02-05CH11231]
FX We thank Atul Jain from the University of Illinois Urbana-Champaign for
providing us georeferenced Miscanthus productivity data to validate our
estimates. This study was jointly funded by the Energy Biosciences
Institute, University of California Berkeley, and the Office of Science,
Office of Biological and Environmental Research, Climate and
Environmental Science Division of the US Department of Energy under
Contract No. DE-AC02-05CH11231.
NR 47
TC 17
Z9 17
U1 3
U2 37
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1757-1693
J9 GCB BIOENERGY
JI GCB Bioenergy
PD JUL
PY 2013
VL 5
IS 4
BP 391
EP 399
DI 10.1111/j.1757-1707.2012.01201.x
PG 9
WC Agronomy; Biotechnology & Applied Microbiology; Energy & Fuels
SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
GA 158CX
UT WOS:000319947300006
ER
PT J
AU Tucker, MC
Srinivasan, V
Ross, PN
Weber, AZ
AF Tucker, Michael C.
Srinivasan, Venkat
Ross, Philip N.
Weber, Adam Z.
TI Performance and cycling of the iron-ion/hydrogen redox flow cell with
various catholyte salts
SO JOURNAL OF APPLIED ELECTROCHEMISTRY
LA English
DT Article
DE Redox flow cell; Flow battery; Iron hydrogen cell
ID BATTERY; PROGRESS
AB A redox flow cell utilizing the Fe2+/Fe3+ and H-2/H+ couples is investigated as an energy storage device. A conventional polymer electrolyte fuel cell anode and membrane design is employed, with a cathode chamber containing a carbon felt flooded with aqueous acidic solution of iron salt. The maximum power densities achieved for iron sulfate, iron chloride, and iron nitrate are 148, 207, and 234 mW cm(-2), respectively. It is found that the capacity of the iron nitrate solution decreases rapidly during cycling. Stable cycling is observed for more than 100 h with iron chloride and iron sulfate solutions. Both iron sulfate and iron chloride solutions display moderate discharge polarization and poor charge polarization; therefore, voltage efficiency decreases dramatically with increasing current density. A small self-discharge current occurs when catholyte is circulating through the cathode chamber. As a result, a current density above 100 mA cm(-2) is required to achieve high Coulombic efficiency (> 0.9).
C1 [Tucker, Michael C.; Srinivasan, Venkat; Ross, Philip N.; Weber, Adam Z.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Tucker, MC (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM mctucker@lbl.gov
OI Weber, Adam/0000-0002-7749-1624
FU Fuel Cell Technologies Office, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX Stanislaus Grosjean contributed to the design and fabrication of the
experimental setup for this study. The authors thank Kyu Taek Cho for
helpful discussion and guidance during the initiation of this study. We
also thank John Kerr and Vincent S. Battaglia for fruitful discussion.
This study was supported in part by the Assistant Secretary for Energy
Efficiency and Renewable Energy, Fuel Cell Technologies Office, of the
U.S. Department of Energy under contract number DE-AC02-05CH11231.
NR 24
TC 12
Z9 12
U1 1
U2 46
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0021-891X
J9 J APPL ELECTROCHEM
JI J. Appl. Electrochem.
PD JUL
PY 2013
VL 43
IS 7
BP 637
EP 644
DI 10.1007/s10800-013-0553-2
PG 8
WC Electrochemistry
SC Electrochemistry
GA 163ZN
UT WOS:000320378100002
ER
PT J
AU Roberts, CC
Francis, LF
AF Roberts, Christine C.
Francis, Lorraine F.
TI Drying and cracking of soft latex coatings
SO JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
LA English
DT Article
DE Latex film formation; Cracking; Cryogenic scanning electron microscopy;
Stress; Minimum film formation temperature
ID ATOMIC-FORCE MICROSCOPY; GRANULAR CERAMIC FILMS; THIN-FILMS; STRESS;
BEHAVIOR; DEFORMATION; DISPERSIONS; SUSPENSIONS; PARTICLES; PATTERNS
AB The minimum film formation temperature (MFFT) is the minimum drying temperature needed for a latex coating to coalesce into an optically clear, dense crack-free film. To better understand the interplay of forces near this critical temperature, cryogenic scanning electron microscopy (cryoSEM) was used to track the latex particle deformation and water migration in coatings dried at temperatures just above and below the MFFT. Although the latex particles completely coalesced at both temperatures by the end of the drying process, it was discovered that particle deformation during the early drying stages was drastically different. Below the MFFT, cracks initiated just as menisci began to recede into the packing of consolidated particles, whereas above the MFFT, partial particle deformation occurred before menisci entered the coating and cracks were not observed. The spacing between cracks measured in coatings dried at varying temperatures decreased with decreasing drying temperature near the MFFT, whereas it was independent of temperature below a critical temperature. Finally, the addition of small amounts of silica aggregates was found to lessen the cracking of latex coatings near the MFFT without adversely affecting their optical clarity.
C1 [Roberts, Christine C.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Francis, Lorraine F.] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA.
RP Roberts, CC (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM ccrober@sandia.gov
FU University of Minnesota Industrial Partnership for Research in
Interfacial and Materials Engineering (IPRIME); Evonik Industries;
University of Minnesota graduate school; NSF through the MRSEC program;
U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX This research was supported by the University of Minnesota Industrial
Partnership for Research in Interfacial and Materials Engineering
(IPRIME) and Evonik Industries. C. C. R. gratefully acknowledges a
Doctoral Dissertation Fellowship sponsored by the University of
Minnesota graduate school. CryoSEM was performed with the help of Chris
Frethem at the University of Minnesota Characterization Facility, which
receives partial support from NSF through the MRSEC program. CryoSEM
images were also obtained at the Technion-Israel Institute of Technology
under the knowledgeable direction of Prof. Yeshayahu Talmon. Financial
support from the University of Minnesota graduate school made this
travel possible. Sandia National Laboratories is a multiprogram
laboratory managed and operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Corporation, for the U.S. Department of
Energy's National Nuclear Security Administration under contract
DE-AC04-94AL85000.
NR 54
TC 5
Z9 8
U1 3
U2 40
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1547-0091
J9 J COAT TECHNOL RES
JI J. Coat. Technol. Res.
PD JUL
PY 2013
VL 10
IS 4
BP 441
EP 451
DI 10.1007/s11998-012-9425-7
PG 11
WC Chemistry, Applied; Materials Science, Coatings & Films
SC Chemistry; Materials Science
GA 163CV
UT WOS:000320314200001
ER
PT J
AU Newman, RM
Kuntzen, T
Weiner, B
Berical, A
Charlebois, P
Kuiken, C
Murphy, DG
Simmonds, P
Bennett, P
Lennon, NJ
Birren, BW
Zody, MC
Allen, TM
Henn, MR
AF Newman, Ruchi M.
Kuntzen, Thomas
Weiner, Brian
Berical, Andrew
Charlebois, Patrick
Kuiken, Carla
Murphy, Donald G.
Simmonds, Peter
Bennett, Phil
Lennon, Niall J.
Birren, Bruce W.
Zody, Michael C.
Allen, Todd M.
Henn, Matthew R.
TI Whole Genome Pyrosequencing of Rare Hepatitis C Virus Genotypes Enhances
Subtype Classification and Identification of Naturally Occurring Drug
Resistance Variants
SO JOURNAL OF INFECTIOUS DISEASES
LA English
DT Article
DE Hepatitis C virus; pyrosequencing; subtype classification; drug
resistance mutations; viral diversity
ID OPEN READING FRAME; NS3 PROTEASE; POLYMERASE INHIBITORS;
MAXIMUM-LIKELIHOOD; ST-PETERSBURG; IN-VITRO; HCV-RNA; RECOMBINANT;
TMC435; SEQUENCES
AB Background. Infection with hepatitis C virus (HCV) is a burgeoning worldwide public health problem, with 170 million infected individuals and an estimated 20 million deaths in the coming decades. While 6 main genotypes generally distinguish the global geographic diversity of HCV, a multitude of closely related subtypes within these genotypes are poorly defined and may influence clinical outcome and treatment options. Unfortunately, the paucity of genetic data from many of these subtypes makes time-consuming primer walking the limiting step for sequencing understudied subtypes.
Methods. Here we combined long-range polymerase chain reaction amplification with pyrosequencing for a rapid approach to generate the complete viral coding region of 31 samples representing poorly defined HCV subtypes.
Results. Phylogenetic classification based on full genome sequences validated previously identified HCV subtypes, identified a recombinant sequence, and identified a new distinct subtype of genotype 4. Unlike conventional sequencing methods, use of deep sequencing also facilitated characterization of minor drug resistance variants within these uncommon or, in some cases, previously uncharacterized HCV subtypes.
Conclusions. These data aid in the classification of uncommon HCV subtypes while also providing a high-resolution view of viral diversity within infected patients, which may be relevant to the development of therapeutic regimens to minimize drug resistance.
C1 [Newman, Ruchi M.; Weiner, Brian; Charlebois, Patrick; Lennon, Niall J.; Birren, Bruce W.; Zody, Michael C.; Henn, Matthew R.] Broad Inst MIT & Harvard, Cambridge, MA 02142 USA.
[Kuntzen, Thomas; Berical, Andrew; Allen, Todd M.] MIT, Ragon Inst MGH, Boston, MA USA.
[Kuntzen, Thomas; Berical, Andrew; Allen, Todd M.] Harvard, Boston, MA USA.
[Kuiken, Carla] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA.
[Kuntzen, Thomas] Univ Zurich Hosp, Dept Gastroenterol & Hepatol, Zurich, Switzerland.
[Murphy, Donald G.] Inst Natl Sante Publ Quebec, Lab Sante Publ Quebec, Quebec City, PQ, Canada.
[Simmonds, Peter] Univ Edinburgh, Ctr Infect Dis, Coventry, W Midlands, England.
[Bennett, Phil] Univ Warwick, Coventry CV4 7AL, W Midlands, England.
RP Newman, RM (reprint author), Broad Inst MIT & Harvard, Cambridge Ctr 7, Cambridge, MA 02142 USA.
EM rnewman@broadinstitute.org
RI Allen, Todd/F-5473-2011
FU National Institute of Allergy and Infectious Diseases, National
Institutes of Health, Department of Health and Human Services
[HHSN272200900018C, HHSN272200900006C, R01-AI067926, U19-AI082630];
Deutsche Forschungsgemeinschaft [DFG KU2250/1-1]
FX This work was supported by the National Institute of Allergy and
Infectious Diseases, National Institutes of Health, Department of Health
and Human Services (contract HHSN272200900018C to B. W. B., contract
HHSN272200900006C to B. W. B., grant R01-AI067926 to T. M. A., and grant
U19-AI082630 to T. M. A.; and the Deutsche Forschungsgemeinschaft (grant
DFG KU2250/1-1 to T. K.).
NR 44
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U1 2
U2 14
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0022-1899
J9 J INFECT DIS
JI J. Infect. Dis.
PD JUL 1
PY 2013
VL 208
IS 1
BP 17
EP 31
DI 10.1093/infdis/jis679
PG 15
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 156NX
UT WOS:000319830300006
PM 23136221
ER
PT J
AU Guo, H
Chien, CC
He, Y
AF Guo, Hao
Chien, Chih-Chun
He, Yan
TI Theories of Linear Response in BCS Superfluids and How They Meet
Fundamental Constraints
SO JOURNAL OF LOW TEMPERATURE PHYSICS
LA English
DT Article
DE Superconductivity; BCS theory; Linear response theory; Gauge invariance;
Sum rules; Thermodynamics; Spin; Cooper pairs; Compressibility; Ward
identity
ID GAUGE-INVARIANCE; SUPERCONDUCTORS
AB We address the importance of symmetry and symmetry breaking on linear response theories of fermionic BCS superfluids. The linear response theory of a noninteracting Fermi gas is reviewed and several consistency constraints are verified. The challenge to formulate linear response theories of BCS superfluids consistent with density and spin conservation laws comes from the presence of a broken U(1)(EM) symmetry associated with electromagnetism (EM) and we discuss two routes for circumventing this. The first route follows Nambu's integral-equation approach for the EM vertex function, but this method is not specific for BCS superfluids. We focus on the second route based on a consistent-fluctuation-of-the order-parameter (CFOP) approach where the gauge transformation and the fluctuations of the order parameter are treated on equal footing. The CFOP approach allows one to explicitly verify several important constraints: The EM vertex satisfies not only a Ward identity which guarantees charge conservation but also a Q-limit Ward identity associated with the compressibility sum rule. In contrast, the spin degrees of freedom associated with another U(1) (z) symmetry are not affected by the Cooper-pair condensation that breaks only the U(1)(EM) symmetry. As a consequence the collective modes from the fluctuations of the order parameter only couple to the density response function but decouple from the spin response function, which reflects the different fates of the two U(1) symmetries in the superfluid phase. Our formulation lays the ground work for applications to more general theories of BCS-Bose Einstein Condensation (BEC) crossover both above and below T (c) .
C1 [Guo, Hao] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China.
[Guo, Hao] Univ Hong Kong, Dept Phys, Hong Kong 999077, Hong Kong, Peoples R China.
[Chien, Chih-Chun] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[He, Yan] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA.
[He, Yan] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
RP Chien, CC (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM chienchihchun@gmail.com
RI He, Yan/B-1594-2012
FU National Natural Science Foundation of China [11204032]; Natural Science
Foundation of Jiangsu Province, China [SBK201241926]; US Department of
Energy through the LANL/LDRD Program
FX We thank Prof. K. Levin for helping prepare this paper. Hao Guo thanks
the support by National Natural Science Foundation of China (Grants No.
11204032) and Natural Science Foundation of Jiangsu Province, China
(SBK201241926). C. C. C. acknowledges the support of the US Department
of Energy through the LANL/LDRD Program.
NR 24
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U1 0
U2 9
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2291
J9 J LOW TEMP PHYS
JI J. Low Temp. Phys.
PD JUL
PY 2013
VL 172
IS 1-2
BP 5
EP 46
DI 10.1007/s10909-012-0853-7
PG 42
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 155SR
UT WOS:000319769000001
ER
PT J
AU Guo, H
Chien, CC
He, Y
AF Guo, Hao
Chien, Chih-Chun
He, Yan
TI Theories of Linear Response in BCS Superfluids and How They Meet
Fundamental Constraints (vol 172, pg 5, 2013)
SO JOURNAL OF LOW TEMPERATURE PHYSICS
LA English
DT Correction
C1 [Guo, Hao] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China.
[Guo, Hao] Univ Hong Kong, Dept Phys, Hong Kong 999077, Hong Kong, Peoples R China.
[Chien, Chih-Chun] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[He, Yan] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA.
[He, Yan] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
RP Chien, CC (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM chienchihchun@gmail.com
NR 1
TC 0
Z9 0
U1 0
U2 3
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2291
J9 J LOW TEMP PHYS
JI J. Low Temp. Phys.
PD JUL
PY 2013
VL 172
IS 1-2
BP 175
EP 176
DI 10.1007/s10909-013-0865-y
PG 2
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 155SR
UT WOS:000319769000012
ER
PT J
AU Holt, JD
Menendez, J
Schwenk, A
AF Holt, J. D.
Menendez, J.
Schwenk, A.
TI The role of three-nucleon forces and many-body processes in nuclear
pairing
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article
ID LOW-MOMENTUM INTERACTIONS; SHELL-MODEL; PHASE
AB We present microscopic valence-shell calculations of pairing gaps in the calcium isotopes, focusing on the role of three-nucleon (3N) forces and many-body processes. In most cases, we find a reduction in pairing strength when the leading chiral 3N forces are included, compared to results with low-momentum two-nucleon (NN) interactions only. This is in agreement with a recent energy density functional study. At the NN level, calculations that include particle-particle and hole-hole ladder contributions lead to smaller pairing gaps compared with experiment. When particle-hole contributions as well as the normal-ordered one- and two-body parts of 3N forces are consistently included to third order, we find reasonable agreement with experimental three-point mass differences. This highlights the important role of 3N forces and many-body processes for pairing in nuclei. Finally, we relate pairing gaps to the evolution of nuclear structure in neutron-rich calcium isotopes and study the predictions for the 2(+) excitation energies, in particular for Ca-54.
C1 [Holt, J. D.; Menendez, J.; Schwenk, A.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
[Holt, J. D.; Menendez, J.; Schwenk, A.] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany.
[Holt, J. D.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Holt, J. D.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Holt, JD (reprint author), Tech Univ Darmstadt, Inst Kernphys, Petersenstr 30, D-64289 Darmstadt, Germany.
EM jason.holt@physik.tu-darmstadt.de;
javier.menendez@physik.tu-darmstadt.de; schwenk@physik.tu-darmstadt.de
RI Menendez, Javier/A-3533-2016;
OI Menendez, Javier/0000-0002-1355-4147; Holt, Jason/0000-0003-4833-7959
FU BMBF [06DA70471]; DFG [SFB 634]; Helmholtz Association through the
Helmholtz Alliance Program [HA216/EMMI]; US DOE [DE-FC02-07ER41457,
DE-FG02-96ER40963]
FX We thank S K Bogner, T Duguet, T Lesinski, and V Soma for useful
discussions. This work was supported by the BMBF under contract no.
06DA70471, the DFG through grant SFB 634, the Helmholtz Association
through the Helmholtz Alliance Program, contract HA216/EMMI 'Extremes of
Density and Temperature: Cosmic Matter in the Laboratory', and the US
DOE grants DE-FC02-07ER41457 (UNEDF SciDAC collaboration) and
DE-FG02-96ER40963. Computations were performed with an allocation of
advanced computing resources on Kraken at the National Institute for
Computational Sciences and at the Julich Supercomputing Center.
NR 70
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U1 0
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
EI 1361-6471
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD JUL
PY 2013
VL 40
IS 7
AR 075105
DI 10.1088/0954-3899/40/7/075105
PG 11
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 162EV
UT WOS:000320249200013
ER
PT J
AU Ren, YF
Li, T
Yu, DT
Jin, SD
Robertazzi, T
AF Ren, Yufei
Li, Tan
Yu, Dantong
Jin, Shudong
Robertazzi, Thomas
TI Design and testbed evaluation of RDMA-based middleware for
high-performance data transfer applications
SO JOURNAL OF SYSTEMS AND SOFTWARE
LA English
DT Article
DE Distributed systems; Middleware; Remote Direct Memory Access
AB Providing high-speed data transfer is vital to various data-intensive applications supported by data center networks. We design a middleware layer of high-speed communication based on Remote Direct Memory Access (RDMA) that serves as the common substrate to accelerate various data transfer tools, such as FTP, HTTP, file copy, sync and remote file I/O. This middleware offers better end-to-end bandwidth performance than the traditional TCP-based alternatives, while it hides the heterogeneity of the underlying high-speed architecture. This paper describes this middleware's function modules, including resource abstraction and task synchronization and scheduling, that maximize the parallelism and performance of RDMA operations. For networks without RDMA hardware acceleration, we integrate Linux kernel optimization techniques to reduce data copy and processing in the middleware. We provide a reference implementation of the popular file-transfer protocol over this RDMA-based middleware layer, called RFTP. Our experimental results show that our RFTP outperforms several TCP-based FTP tools, such as GridFTP, while it maintains very low CPU consumption on a variety of data center platforms. Furthermore, those results confirm that our RFTP tool achieves near line-speed performance in both LAN and WAN, and scales consistently from 10 Gbps Ethernet to 40 Gbps Ethernet and InfiniBand environments. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Ren, Yufei; Li, Tan; Jin, Shudong; Robertazzi, Thomas] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Yu, Dantong] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Yu, Dantong] Brookhaven Natl Lab, Grid Comp Grp, Upton, NY 11973 USA.
[Jin, Shudong] SUNY Stony Brook, Ctr Wireless & Informat Technol, Stony Brook, NY 11794 USA.
[Robertazzi, Thomas] SUNY Stony Brook, Dept Elect & Comp Engn, Stony Brook, NY 11794 USA.
RP Ren, YF (reprint author), SUNY Stony Brook, Stony Brook, NY 11794 USA.
EM yufei.ren@stonybrook.edu; tan.li@stonybrook.edu; dtyu@bnl.gov;
shujin@notes.cc.sunysb.edu; tom@ece.sunysb.edu
FU United States Department of Energy [DE-SC0003361]; Office of Science of
the U.S. Department of Energy [DE-AC02-05CH11231]; The American Recovery
and Reinvestment Act
FX The authors are grateful to the facility donation of Mellanox
Technologies, Inc. and Fusion-io, Inc. The authors have benefited from
the numerous technical discussions with Todd Wilde from Mellanox, David
McMillen from System Fabric Works, Inc., and David Strohmeyer from
Intel. This work is supported by United States Department of Energy,
Grant No. DE-SC0003361.; This research used resources of the ESnet
Advanced Network Initiative (ANI) Testbed, which is supported by the
Office of Science of the U.S. Department of Energy under contract
DE-AC02-05CH11231, funded through The American Recovery and Reinvestment
Act of 2009.
NR 28
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U1 1
U2 9
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0164-1212
J9 J SYST SOFTWARE
JI J. Syst. Softw.
PD JUL
PY 2013
VL 86
IS 7
BP 1850
EP 1863
DI 10.1016/j.jss.2013.01.070
PG 14
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA 156TU
UT WOS:000319847600012
ER
PT J
AU Essuman, E
Walker, LR
Maziasz, J
Pint, BA
AF Essuman, E.
Walker, L. R.
Maziasz, J.
Pint, B. A.
TI Oxidation behaviour of cast Ni-Cr alloys in steam at 800 degrees C
SO MATERIALS SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Steam oxidation; Cast Ni base alloys; Internal oxidation
ID HIGH-TEMPERATURE OXIDATION; WATER-VAPOR; INTERNAL OXIDATION; BASE
ALLOYS; MATERIALS TECHNOLOGY; FORMING ALLOYS; CORROSION; SCALES; PLANTS;
EVAPORATION
AB To evaluate the steam oxidation resistance of cast Ni base alloy candidates for advanced steam turbine casings, laboratory experiments were conducted at 800 degrees C. Alloys ranged from weaker, solid solution strengthened alloys 230 and 625 to stronger, precipitation strengthened alloys 105, 263 and 740, which are more difficult to fabricate and join. In general, these Ni-Cr based alloys exhibit low mass gains and form thin, protective Cr rich external oxides in 17 bar steam or 1 bar air. However, Al and Ti in these alloys internally oxidise in all cases. After 5000 h exposures, the average and maximum internal oxide penetration depths were measured, and the values were ranked based on the alloy Al + Ti contents. The middle range of Al + Ti compositions investigated, such as for alloys 617, 263, 282 and 740, showed the deepest penetrations. Further characterisation of the reaction products by electron microprobe showed a complex behaviour including significant Ti incorporation into the scale formed in both steam and air, and Ti rich oxide at both the gas and metal interfaces. Based on the Al and Ti contents, the internal oxidation observed in these alloys in steam was atypical.
C1 [Essuman, E.; Walker, L. R.; Maziasz, J.; Pint, B. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Pint, BA (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM pintba@ornl.gov
RI Pint, Bruce/A-8435-2008;
OI Pint, Bruce/0000-0002-9165-3335; Maziasz, Philip/0000-0001-8207-334X
FU UT-Battelle, LLC [DE-AC05-00OR22725]; US Department of Energy; US
Department of Energy, Fossil Energy Advanced Research Materials Program
FX This manuscript has been authored by UT-Battelle, LLC, under contract
no. DE-AC05-00OR22725 with the US Department of Energy. The US
Government retains and the publisher, by accepting the article for
publication, acknowledges that the US Government retains a
non-exclusive, paid-up, irrevocable, worldwide licence to publish or
reproduce the published form of this manuscript, or allow others to do
so, for US Government purposes.; The authors would like to thank G.
Garner, T. Lowe, M. Howell, H. Longmire and H. Meyer for assistance with
the experimental work. The alloys were cast at NETL-Albany by P.
Jablonski. M. P. Brady and I. G. Wright provided many helpful comments
on the manuscript. The research was sponsored by the US Department of
Energy, Fossil Energy Advanced Research Materials Program.
NR 39
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PU MANEY PUBLISHING
PI LEEDS
PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND
SN 0267-0836
J9 MATER SCI TECH-LOND
JI Mater. Sci. Technol.
PD JUL
PY 2013
VL 29
IS 7
BP 822
EP 827
DI 10.1179/1743284712Y.0000000103
PG 6
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 161XS
UT WOS:000320227600009
ER
PT J
AU Pint, BA
Haynes, JA
AF Pint, B. A.
Haynes, J. A.
TI Effect of water vapour content on thermal barrier coating lifetime
SO MATERIALS SCIENCE AND TECHNOLOGY
LA English
DT Article
DE TBC lifetime; Pt diffusion coating; Pt aluminide coating; MCrAlY; Water
vapour; High temperature oxidation; Yttria stabilised zirconia;
Thermally grown alumina
ID HIGH-TEMPERATURE OXIDATION; NI-PT-AL; CYCLIC OXIDATION; SUBSTRATE
COMPOSITION; BOND COATINGS; TBC SYSTEMS; SCALE; ALUMINIDE; BEHAVIOR;
ALLOYS
AB Furnace cycle testing was conducted in air with 10, 50 and 90 vol.-% water vapour and compared to prior results in dry O-2. The first series of experiments examined Pt diffusion and Pt modified aluminised bond coatings on second generation superalloy N5 at 1150 degrees C with commercially vapour deposited yttria stabilised zirconia (YSZ) top coats. Compared to dry O-2, the average lifetimes with Pt diffusion coatings were unaffected by the addition of water vapour, while the Pt modified aluminide coating average lifetime was reduced by >50% with 10% water vapour, but less reduction was observed with higher water contents. The second series of experiments examined MCrAlY and MCrAlYHfSi bond coatings and air plasma sprayed YSZ top coatings on superalloy X4 cycled at 1100 degrees C. Compared to dry O-2, the addition of 10% water vapour decreased the lifetime of MCrAlY by 28%. Higher average lifetimes were observed with Hf in the bond coating.
C1 [Pint, B. A.; Haynes, J. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Pint, BA (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM pintba@ornl.gov
RI Pint, Bruce/A-8435-2008
OI Pint, Bruce/0000-0002-9165-3335
FU US Department of Energy, Office of Coal and Power R&D, Office of Fossil
Energy
FX The authors would like to thank G. W. Garner, T. M. Lowe, K. M. Cooley
and H. Longmire for assistance with the experimental work. Plating of Pt
was conducted at Tennessee Technological University by Professor Y.
Zhang. B. Hazel and B. Nagaraj at General Electric Aircraft Engines
provided the N5 substrate material and coated the specimens with EB-PVD
YSZ, and Stony Brook University applied the HVOF and APS coatings. The
X4 substrates were provided by K. Murphy at Howmet. A. Vande Put
provided helpful comments on the manuscript. The present research was
sponsored by the US Department of Energy, Office of Coal and Power R&D,
Office of Fossil Energy (R. Dennis, program manager). This paper is
based on a presentation made at the 8th International Charles Parsons
Turbine Conference organised by the Institute of Materials, Minerals and
Mining at Portsmouth, UK on 5-8 September 2011.
NR 38
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PU MANEY PUBLISHING
PI LEEDS
PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND
SN 0267-0836
J9 MATER SCI TECH-LOND
JI Mater. Sci. Technol.
PD JUL
PY 2013
VL 29
IS 7
BP 828
EP 834
DI 10.1179/1743284712Y.0000000104
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 161XS
UT WOS:000320227600010
ER
PT J
AU Vishnivetskaya, TA
Fisher, LS
Brodie, GA
Phelps, TJ
AF Vishnivetskaya, Tatiana A.
Fisher, L. Suzanne
Brodie, Greg A.
Phelps, Tommy J.
TI Microbial Communities Involved in Biological Ammonium Removal from Coal
Combustion Wastewaters
SO MICROBIAL ECOLOGY
LA English
DT Article
ID SULFATE-REDUCING BACTERIA; RIBOSOMAL-RNA ANALYSIS; SEQUENCE ALIGNMENT;
SP-NOV.; MARINE; MERCURY; GENOME; PLANCTOMYCETE; CRENARCHAEOTA;
DENITRIFICANS
AB The efficiency of a novel integrated treatment system for biological removal of ammonium, nitrite, nitrate, and heavy metals from fossil power plant effluent was evaluated. Microbial communities were analyzed using bacterial and archaeal 16S rRNA gene clone libraries (Sanger sequences) and 454 pyrosequencing technology. While seasonal changes in microbial community composition were observed, the significant (P = 0.001) changes in bacterial and archaeal communities were consistent with variations in ammonium concentration. Phylogenetic analysis of 16S rRNA gene sequences revealed an increase of potential ammonium-oxidizing bacteria (AOB), Nitrosomonas, Nitrosococcus, Planctomycetes, and OD1, in samples with elevated ammonium concentration. Other bacteria, such as Nitrospira, Nitrococcus, Nitrobacter, Thiobacillus, epsilon-Proteobacteria, Firmicutes, and Acidobacteria, which play roles in nitrification and denitrification, were also detected. The AOB oxidized 56 % of the ammonium with the concomitant increase in nitrite and ultimately nitrate in the trickling filters at the beginning of the treatment system. Thermoprotei within the phylum Crenarchaeota thrived in the splitter box and especially in zero-valent iron extraction trenches, where an additional 25 % of the ammonium was removed. The potential ammonium-oxidizing Archaea (AOA) (Candidatus Nitrosocaldus) were detected towards the downstream end of the treatment system. The design of an integrated treatment system consisting of trickling filters, zero-valent iron reaction cells, settling pond, and anaerobic wetlands was efficient for the biological removal of ammonium and several other contaminants from wastewater generated at a coal burning power plant equipped with selective catalytic reducers for nitrogen oxide removal.
C1 [Vishnivetskaya, Tatiana A.; Phelps, Tommy J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Fisher, L. Suzanne; Brodie, Greg A.] Tennessee Valley Author, Knoxville, TN 37902 USA.
RP Phelps, TJ (reprint author), Oak Ridge Natl Lab, Biosci Div, POB 2008,MS 6036,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM phelpstj@ornl.gov
OI Vishnivetskaya, Tatiana/0000-0002-0660-023X
FU U. S. Department of Energy Office of Fossil Energy; U. S. Department of
Energy [DE-AC05-00OR22725]; U. S. Department of Energy Office of Science
Biological and Environmental Research, Environmental Remediation
Sciences Program
FX This research was sponsored by the U. S. Department of Energy Office of
Fossil Energy and Office of Science Biological and Environmental
Research, Environmental Remediation Sciences Program and performed at
Oak Ridge National Laboratory (ORNL). ORNL is managed by UT-Battelle,
LLC, for the U. S. Department of Energy under contract
DE-AC05-00OR22725. We thank Zamin Yang and Marilyn Kerley for help with
454 FLX pyrosequencing and Sanger sequencing, respectively. We would
also like to thank Alan Mays, David Lane, Mark Wolfe, and Roy Quinn of
TVA for help with sampling and maintaining the ATOXIC/ASSET field sites.
NR 51
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U2 75
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0095-3628
J9 MICROB ECOL
JI Microb. Ecol.
PD JUL
PY 2013
VL 66
IS 1
BP 49
EP 59
DI 10.1007/s00248-012-0152-5
PG 11
WC Ecology; Marine & Freshwater Biology; Microbiology
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Microbiology
GA 159LX
UT WOS:000320048000006
PM 23314095
ER
PT J
AU Mayer, BP
Chinn, SC
Maxwell, RS
Reimer, JA
AF Mayer, Brian P.
Chinn, Sarah C.
Maxwell, Robert S.
Reimer, Jeffrey A.
TI Solid state NMR investigation of gamma-irradiated composite siloxanes:
Probing the silica/polysiloxane interface
SO POLYMER DEGRADATION AND STABILITY
LA English
DT Article
DE Cross polarization; Nuclear magnetic resonance; Interface; Spectroscopy;
Composite materials; Radiation
ID FILLED SILICONE ELASTOMER; RUBBER; POLYMER; SPECTROSCOPY; PDMS;
POLYDIMETHYLSILOXANES; RADIOLYSIS; MOBILITY; H-1-NMR; SURFACE
AB We employ silicon-proton (Si-29{H-1}) cross polarization magic-angle spinning (CP-MAS) to probe directly the interface of a silica-filled polysiloxane elastomer subjected to gamma radiation. Using a traditional spin-lock CP experiment in conjunction with a silicon-edited proton rotating-frame longitudinal relaxation sequence, the full suite of CP build-up parameters are extracted for six resolvable silicon chemical shifts. The data, represented by three parameters, T-HX, T-1 rho(H), and M-infinity, are interpreted by means of a model where the simultaneous effects of silica surface hydroxyl modification, interfacial water content, and radiation-induced chemistries are considered responsible for the observed macroscopic behavior of these engineering materials. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Mayer, Brian P.; Chinn, Sarah C.; Maxwell, Robert S.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA.
[Reimer, Jeffrey A.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
RP Mayer, BP (reprint author), Lawrence Livermore Natl Lab, Div Chem Sci, 7000 East Ave L-091, Livermore, CA 94550 USA.
EM mayer22@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX B. Mayer would like to thank J. P. Lewicki for helpful discussions
during the preparation of this manuscript. This work performed under the
auspices of the U.S. Department of Energy by Lawrence Livermore National
Laboratory under Contract DE-AC52-07NA27344.
NR 39
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U1 2
U2 52
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0141-3910
J9 POLYM DEGRAD STABIL
JI Polym. Degrad. Stabil.
PD JUL
PY 2013
VL 98
IS 7
BP 1362
EP 1368
DI 10.1016/j.polymdegradstab.2013.03.021
PG 7
WC Polymer Science
SC Polymer Science
GA 161SN
UT WOS:000320213700010
ER
PT J
AU Breault, RW
AF Breault, Ronald W.
TI SPECIAL ISSUE: Selected Papers from the 2010 NETL Multiphase Flow
Workshop Preface
SO POWDER TECHNOLOGY
LA English
DT Editorial Material
C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Breault, RW (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM Ronald.Breault@NETL.DOE.GOV
OI Breault, Ronald/0000-0002-5552-4050
NR 0
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U1 2
U2 4
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 1
EP 1
DI 10.1016/j.powtec.2013.01.048
PG 1
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300001
ER
PT J
AU Gidaspow, D
Li, F
Huang, J
AF Gidaspow, Dimitri
Li, Fang
Huang, Jing
TI A CFD simulator for multiphase flow in reservoirs and pipes
SO POWDER TECHNOLOGY
LA English
DT Article
DE Computational fluid dynamics; Mud; Gas; Oil; Multiphase CFD model;
Friction factors
AB A computational fluid dynamics (CFD) code for flow of oil, gas and sand in reservoirs and pipes was developed to help understand the flow in wild wells that are drilled for offshore oil production. In the reservoir, there is a large entrance effect produced by turbulence. In the pipe, the code computed turbulent velocity profiles and Reynolds stresses similar to fully developed single phase turbulent flow. The Fanning friction factor for oil flow at a Reynolds number of about 16,000 is 0.004, compared with the single phase turbulent friction factor of 0.007. The computed low frequency oscillations are consistent with wild well behavior. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Gidaspow, Dimitri; Li, Fang] IIT, Chicago, IL 60616 USA.
[Huang, Jing] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
RP Gidaspow, D (reprint author), IIT, Chicago, IL 60616 USA.
EM gidaspow@iit.edu
NR 10
TC 1
Z9 1
U1 2
U2 21
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 2
EP 12
DI 10.1016/j.powtec.2013.01.047
PG 11
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300002
ER
PT J
AU Gopalan, B
Shaffer, F
AF Gopalan, Balaji
Shaffer, Frank
TI Higher order statistical analysis of Eulerian particle velocity data in
CFB risers as measured with high speed particle imaging
SO POWDER TECHNOLOGY
LA English
DT Article
DE Fluidization; Granular Temperature; High Speed Imaging; Eulerian
Velocity
ID CIRCULATING FLUIDIZED-BED; NEAR-WALL REGION; GRANULAR TEMPERATURE;
KINETIC-THEORY; FLOW; PROFILES; STRESSES; DENSE
AB Velocities of individual particles have been measured in gas-particle flow fields within the risers of two circulating fluidized bed (CFB), one with a 0305 m diameter riser at the National Energy Technology Laboratory (NETL) and one with a 0.20 m diameter riser at Particle Solid Research Inc. (PSRI). The risers were operated at moderate to high particle concentrations (solid fluxes up to 400 kg/m(2)s). The NETL riser was operated in the core-annulus regime. The PSRI riser was operated in both the core-annulus and dense up-flow regimes. HDPE particles with a mean diameter of 800 pm were used in the NETL riser and FCC particles with a mean diameter of 80 pm were used in the PSRI riser. Particle velocities were measured with a high speed particle imaging velocimetry (HSPIV) system developed by the NETL. The HSPIV measurement technique has the ability to measure the velocities and trajectories of thousands of particles simultaneously in flows of high particle concentration. In this study, particle velocities are measured in a small two-dimensional field-of-view with dimensions in the range of 1-5 mm wide by 1-10 mm high, with a depth of about 1 mm. The size of the field-of-view is chosen to be similar to the size of CFD grid cells in models used by NETL and small enough that gradients of the mean particle velocity are small over the field-of-view, but large enough to achieve high data sample rates (at least ten velocity vectors per camera frame). In this study sample rates for particle velocity vectors were in the range of 0.1 to 1 million per second. This sample rate provides the high temporal resolution necessary to resolve the complete temporal domain of particle velocity. Particle velocities in each camera frame (at each point in time) are averaged to yield a pointwise instantaneous particle velocity. Using a recently developed particle velocity decomposition technique (Gopalan and Shaffer, 2011 [15]) the pointwise particle velocity time series is decomposed into a varying mean Eulerian component and a random fluctuating component. Statistics of the Eulerian velocity, namely the mean, RMS, skewness and kurtosis, and the granular temperature of the random fluctuating component are presented in this study.
Results show that the vertical component of the overall mean Eulerian velocity decreases with increasing mass flux in both the core-annulus and dense up-flow regimes. The root mean square (RMS) of the Eulerian velocity in the horizontal direction is independent of the radial location in the NETL riser. In the PSRI riser, for both the core-annulus and dense upflow regime, the RMS of the horizontal Eulerian velocity decreases monotonically from the center of the riser to the wall. The radial profile of the RMS of the vertical Eulerian velocity for the PSRI riser is parabolic with a peak near r/R similar to 0.5-0.6 for the dense upflow regime. For the core-annulus regime the radial profile of the RMS of the vertical Eulerian velocity is relatively flat for both the NETL and PSRI risers, with a slight decrease near the wall in the PSRI riser. The skewness of the PDF of Eulerian velocity is near zero in the horizontal direction for the dense upflow regime in the PSRI riser, the only Eulerian velocity distribution for which the Gaussian approximation is appropriate. The skewness trends of the vertical velocity distribution are more complex and require further experimental confirmation. The kurtosis of the PDF of the Eulerian velocity is always higher in the horizontal direction than the vertical direction except at the wall of the riser. The 80 mu m FCC particles in the PSRI riser showed much higher granular temperature than the 800 mu m particles in the NETL riser. The granular temperature decreases monotonically for all conditions from the center of the riser to the wall, granular temperature is anisotropic for all conditions in both risers. The radial profile of anisotropy of granular temperature is relatively flat over most of the NETL and PSRI risers with values in the range of 0.3 to 0.6. Near the wall it decreases for the PSRI riser, while increasing for the NETL riser. (C) 2013 Published by Elsevier B.V.
C1 [Gopalan, Balaji] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
[Gopalan, Balaji; Shaffer, Frank] US DOE, Natl Energy Technol Lab, Washington, DC 20585 USA.
RP Shaffer, F (reprint author), US DOE, Natl Energy Technol Lab, Washington, DC 20585 USA.
EM Franklin.Shaffer@netl.doe.gov
RI Gopalan, Balaji/I-4169-2013
FU Oak Ridge Institute of Science and Education (ORISE)
FX We thank the management of NETL for providing direction in this research
and for providing the necessary resources, including one of the best
high speed cameras available. In particular we would like to thank Bill
Rogers and Chris Guenther. We also thank the PSRI team in Chicago for
providing unique experimental facilities for studying particle flow
fields, and for their unprecedented expertise in this field. Also the
author Balaji Gopalan, would like to thank the Oak Ridge Institute of
Science and Education (ORISE) for sponsoring his work through a
fellowship grant.
NR 34
TC 7
Z9 7
U1 3
U2 26
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 13
EP 26
DI 10.1016/j.powtec.2013.01.046
PG 14
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300003
ER
PT J
AU Gel, A
Garg, R
Tong, C
Shahnam, M
Guenther, C
AF Gel, A.
Garg, R.
Tong, C.
Shahnam, M.
Guenther, C.
TI Applying uncertainty quantification to multiphase flow computational
fluid dynamics
SO POWDER TECHNOLOGY
LA English
DT Article
DE Multiphase flow; Computational fluid dynamics (CFD); Non-intrusive
parametric uncertainty quantification and propagation; Surrogate models;
Data-fitted response surface
ID MAGNETIC-RESONANCE MEASUREMENTS; VERIFICATION; VALIDATION; SIMULATION
AB Multiphase computational fluid dynamics plays a major role in design and optimization of fossil fuel based reactors. There is a growing interest in accounting for the influence of uncertainties associated with physical systems to increase the reliability of computational simulation based engineering analysis. The U.S. Department of Energy's National Energy Technology laboratory (NETL) has recently undertaken an initiative to characterize uncertainties associated with computer simulation of reacting multiphase flows encountered in energy producing systems such as a coal gasifier. The current work presents the preliminary results in applying non-intrusive parametric uncertainty quantification and propagation techniques with NETL's open-source multiphase computational fluid dynamics software MFIX For this purpose an open-source uncertainty quantification toolkit, PSUADE developed at the Lawrence Livermore National Laboratory (LLNL) has been interfaced with MFIX software. In this study, the sources of uncertainty associated with numerical approximation and model form have been neglected, and only the model input parametric uncertainty with forward propagation has been investigated by constructing a surrogate model based on data-fitted response surface for a multiphase flow demonstration problem. Monte Carlo simulation was employed for forward propagation of the aleatory type input uncertainties. Several insights gained based on the outcome of these simulations are presented such as how inadequate characterization of uncertainties can affect the reliability of the prediction results. Also a global sensitivity study using Sobol' indices was performed to better understand the contribution of input parameters to the variability observed in response variable. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Gel, A.; Garg, R.; Shahnam, M.; Guenther, C.] Natl Energy Technol Lab, Morgantown, WV 26505 USA.
[Gel, A.] ALPEMI Consulting LLC, Phoenix, AZ 85044 USA.
[Garg, R.] UPS Energy & Construct Inc, Morgantown, WV 26505 USA.
[Tong, C.] Lawrence Livermore Natl Lab, CASC, Livermore, CA 94551 USA.
RP Gel, A (reprint author), Natl Energy Technol Lab, Morgantown, WV 26505 USA.
EM aike@alpemi.com
RI Garg, Rahul/I-4174-2013
FU National Energy Technology Laboratory under the RES [DE-FE0004000];
agency of the United States Government
FX This technical effort was performed in support of the National Energy
Technology Laboratory's ongoing research in advanced numerical
simulation of multiphase flow under the RES contract DE-FE0004000. This
report was prepared as an account of work sponsored by an agency of the
United States Government. Neither the United States Government nor any
agency thereof, nor any of their employees, makes any warranty, express
or implied, or assumes any legal liability or responsibility for the
accuracy, completeness, or usefulness of any information, apparatus,
product, or process disclosed, or represents that its use would not
infringe privately owned rights. Reference herein to any specific
commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not necessarily constitute or imply its
endorsement, recommendation, or favoring by the United States Government
or any agency thereof. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or any agency thereof.
NR 27
TC 10
Z9 10
U1 1
U2 33
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 27
EP 39
DI 10.1016/j.powtec.2013.01.045
PG 13
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300004
ER
PT J
AU Weber, JM
Mei, JS
AF Weber, Justin M.
Mei, Joseph S.
TI Bubbling fluidized bed characterization using Electrical Capacitance
Volume Tomography (ECVT)
SO POWDER TECHNOLOGY
LA English
DT Article
DE Fluidization; Fluidized bed; Electrical capacitance volume tomography;
Bubble properties; Solid fraction; Multiphase flow
ID DIGITAL IMAGE-ANALYSIS; GAS; SIZE; FREQUENCY; DIAMETER; PRESSURE;
BEHAVIOR; VELOCITY; LIQUID
AB Understanding the fundamentals of gas-solid fluidized beds and, in general, multiphase flows has been a significant task since the conception of gas-solid fluidization and fluid particle systems. Various measurement techniques have been applied in an attempt to better understand the fundamentals of the complex gas-solid flow structures that form in fluidized beds. This information may potentially provide a better design, scale-up, and operation of these systems as well as lead to accurate performance predictions of multiphase flow systems. Electrical Capacitance Volume Tomography (ECVT) has now reached a point of development where these multiphase flow structures can be imaged accurately and reliably in three dimensions at good resolutions and sampling rates to provide significant insight into the internal gas-solid flow structures. A 10 cm ECVT sensor was used in order to investigate the bubble behavior of a 10 cm diameter bubbling fluidized bed (BFB) of 185 micron glass beads at various fluidization velocities. Three dimensional images of gas-solid flow structures as well as time average vertical and radial solid fraction profiles are presented in this paper, and average bubble diameter and bubble frequency are discussed and compared to various correlations available in the published literature. Published by Elsevier B.V.
C1 [Weber, Justin M.; Mei, Joseph S.] US DOE, Morgantown, WV 26507 USA.
RP Mei, JS (reprint author), US DOE, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM JOSEPH.MEI@netl.doe.gov
FU agency of the United States Government
FX This report was prepared as an account of work sponsored by an agency of
the United States Government. Neither the United States Government nor
any agency thereof, nor any of their employees, makes any warranty,
expressed or implied, or assumes any legal liability or responsibility
for the accuracy, completeness, or usefulness of any information,
apparatus, product, or process disclosed, or represents that its use
would not infringe privately owned rights. Reference herein to any
specific commercial product, process, or service by trade name,
trademark, manufacturer, or otherwise does not necessarily constitute or
imply its endorsement, recommendation, or favoring by the United States
Government or any agency thereof. The views and opinions of authors
expressed herein do not necessarily state or reflect those of the United
States Government or any agency thereof.
NR 28
TC 19
Z9 19
U1 1
U2 27
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 40
EP 50
DI 10.1016/j.powtec.2013.01.044
PG 11
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300005
ER
PT J
AU Ludlow, JC
Panday, R
Shadle, LJ
AF Ludlow, J. Christopher
Panday, Rupen
Shadle, Lawrence J.
TI Standpipe models for diagnostics and control of a circulating fluidized
bed
SO POWDER TECHNOLOGY
LA English
DT Article
DE Circulating fluidized bed; Standpipe bed height; Solids circulation
rate; Multi-phase gas solids flow; Standpipe pressure profile
ID FLOW
AB Two models for a Circulating Fluidized Bed (CFB) standpipe were formulated, implemented and validated to estimate critical CFB operational parameters. The first model continuously estimates standpipe bed height using incremental pressure measurements within the standpipe. The second model estimates variations in the void fraction along the standpipe using the Ergun equation in conjunction with the overall pressure drop across the bed, solids circulation rate and the standpipe aeration flows introduced at different locations of the pipe. The importance of different standpipe parameters obtained from these models is discussed in terms of successful operation of the overall CFB system. Finally, the applications of these models are shown in improving the solids circulation rate measurement and in calculating riser inventory. Published by Elsevier B.V.
C1 [Ludlow, J. Christopher; Panday, Rupen; Shadle, Lawrence J.] Natl Energy Technol Lab, Morgantown, WV 26508 USA.
RP Shadle, LJ (reprint author), Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26508 USA.
EM lshadl@netl.doe.gov
OI Shadle, Lawrence/0000-0002-6283-3628
NR 15
TC 4
Z9 5
U1 0
U2 12
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 51
EP 64
DI 10.1016/j.powtec.2013.01.016
PG 14
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300006
ER
PT J
AU Shaffer, F
Gopalan, B
Breault, RW
Cocco, R
Karri, SBR
Hays, R
Knowlton, T
AF Shaffer, Frank
Gopalan, Balaji
Breault, Ronald W.
Cocco, Ray
Karri, S. B. Reddy
Hays, Roy
Knowlton, Ted
TI High speed imaging of particle flow fields in CFB risers
SO POWDER TECHNOLOGY
LA English
DT Article
DE High speed imaging; Fluidization; Circulating fluidized beds; Particle
tracking
ID CIRCULATING FLUIDIZED-BEDS; GRANULAR TEMPERATURE; SOLIDS; TURBULENT;
WALL
AB Particle flows of high particle concentration are important in many fields, including chemical processing, pharmaceutical processing, energy conversion and powder transport. Circulating fluidized beds (CFB) are widely employed in industry because they enhance reaction rates and heat transfer through rapid mixing of particles at high particle concentrations and high particle flow rates. However, despite decades of research and industrial application, the real time behavior of particle flow fields in CFB's is still not well understood. One of the reasons is that experimental data is difficult to acquire in such harsh, opaque environments. In this study, a new high speed particle imaging velocimetry (high speed PIV) technology, developed by the USDOE National Energy Technology Laboratory (NETL), is applied to observe and measure the real time behavior of individual particle motion inside the risers of CFB's. High speed PIV data acquired in three pilot scale CFB units at two laboratories: two CFB's with 0.305 m diameter risers and one CFB with a 0.2 m diameter riser. The high speed PIV system records high speed videos of particle motion with excellent spatial and temporal clarity. The high speed videos are analyzed to measure the concentration and the two-dimensional motion (velocity and trajectory) of individual particles. Data sample rates for velocity vectors are in the range of 0.1 to 3 million vectors per second thereby providing full resolution of the temporal domain of particle velocity. To see and measure particle motion inside the CFB risers at high particle concentrations, a custom borescope was inserted into the risers. The CFB risers were operated over a wide range of industrially relevant conditions: superficial gas velocities from 6.5 to 18.3 m/s with solid fluxes from 20 to 400 kg/m(2)/s. The particles used in the CFBs included fluid cracking catalyst (FCC) with a mean diameter of 70 mu m, high density polyethylene (HDPE) with a mean diameter of 750 mu m, and glass beads with mean diameters of 170 and 650 mu m.
High speed videos and high speed PIV data enabled careful study of the real time behavior of gas-particle flow fields in CFB risers. In all of the CFBs of this study, one or more "jets" of high speed gas were observed at any time in the CFB risers. The jets move around the riser and appear to wander from one location against the riser wall to another. The jets have width range of 1/10 to 1/2 of the riser diameter. When a jet moves away from an area, the void is immediately filled with large clusters of particles. The clusters have sizes up to several riser diameters and contain significant percentages of the total particle flow. Clusters reduce mixing and interaction of particles with the transport gas, and therefore may inhibit reaction rates. Shearing of the clusters by high speed jets gives rise to cluster shapes that are either undulating or in the form of long, thin vertical strands which are often called streamers. The well known core-annulus concentration profile does not exist in real time, but rather is a long time averaged phenomenon. The data and insight from this work should be valuable for design and operation of risers, and for development of computational fluid dynamic (CFD) models of riser flow fields. Published by Elsevier B.V.
C1 [Shaffer, Frank; Gopalan, Balaji; Breault, Ronald W.] US DOE, Natl Energy Technol Lab, Washington, DC 20585 USA.
RP Breault, RW (reprint author), US DOE, Natl Energy Technol Lab, Washington, DC 20585 USA.
EM ronald.breault@netl.doe.gov
RI Gopalan, Balaji/I-4169-2013;
OI Breault, Ronald/0000-0002-5552-4050
NR 39
TC 28
Z9 30
U1 14
U2 79
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0032-5910
EI 1873-328X
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 86
EP 99
DI 10.1016/j.powtec.2013.01.012
PG 14
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300010
ER
PT J
AU Breault, RW
Li, TW
Nicoletti, P
AF Breault, Ronald W.
Li, Tingwen
Nicoletti, Phillip
TI Mass transfer effects in a gasification riser
SO POWDER TECHNOLOGY
LA English
DT Article
DE Mass transfer; Gasification; Circulating fluidized bed (CFB) technology;
Clean Coal Power Initiative (CCPI)
ID CIRCULATING FLUIDIZED-BEDS; FLOW; PARTICLES; CFB
AB In the development of multiphase reacting computational fluid dynamics (CFD) codes, a number of simplifications were incorporated into the codes and models. One of these simplifications was the use of a simplistic mass transfer correlation for the faster reactions and omission of mass transfer effects completely on the moderate speed and slow speed reactions such as those in a fluidized bed gasifier. Another problem that has propagated is that the mass transfer correlation used in the codes is not universal and is being used far from its developed bubbling fluidized bed regime when applied to circulating fluidized bed (CFB) riser reactors. These problems are true for the major CFD codes.
To alleviate this problem, a mechanistic based mass transfer coefficient algorithm has been developed based upon an earlier work by Breault et al. [1-3]. This fundamental approach uses the local hydrodynamics to predict a local, time varying mass transfer coefficient. The predicted mass transfer coefficients and the corresponding Sherwood numbers agree well with literature data and are typically about an order of magnitude lower than the correlation noted above. The incorporation of the new mass transfer model gives the expected behavior for all the gasification reactions evaluated in the paper. At the expected and typical design values for the solid flow rate in a CFB riser gasifier an ANOVA analysis has shown the predictions from the new code to be significantly different from the original code predictions. The new algorithm should be used such that the conversions are not over predicted. Additionally, its behaviors with changes in solid flow rate are consistent with the changes in the hydrodynamics. Published by Elsevier B.V.
C1 [Breault, Ronald W.; Li, Tingwen; Nicoletti, Phillip] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Li, Tingwen; Nicoletti, Phillip] UPS Corp, Morgantown, WV 26507 USA.
RP Breault, RW (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
EM ronald.breault@netl.doe.gov
RI madha nia, suci/K-9554-2014;
OI madha nia, suci/0000-0001-7396-9945; Breault,
Ronald/0000-0002-5552-4050; Li, Tingwen/0000-0002-1900-308X
NR 22
TC 1
Z9 1
U1 1
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0032-5910
EI 1873-328X
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 108
EP 116
DI 10.1016/j.powtec.2013.01.010
PG 9
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300012
ER
PT J
AU Ryan, EM
DeCroix, D
Breault, R
Xu, W
Huckaby, ED
Saha, K
Dartevelle, S
Sun, X
AF Ryan, E. M.
DeCroix, D.
Breault, R.
Xu, W.
Huckaby, E. D.
Saha, K.
Dartevelle, S.
Sun, X.
TI Multi-phase CFD modeling of solid sorbent carbon capture system
SO POWDER TECHNOLOGY
LA English
DT Article
DE Carbon capture; Multi-phase; Computational fluid dynamics; Fluidized
bed; Reactive transport
ID FLUIDIZED-BEDS; FLOWS
AB Computational fluid dynamics (CFD) simulations are used to investigate a low temperature post-combustion carbon capture reactor. The CFD models are based on a small scale solid sorbent carbon capture reactor design from ADA-ES and Southern Company. The reactor is a fluidized bed design based on a silica-supported amine sorbent CFD models using both Eulerian-Eulerian and Eulerian-Lagrangian multi-phase modeling methods are developed to investigate the hydrodynamics and adsorption of carbon dioxide in the reactor. Models developed in both FLUENT (R) and BARRACUDA are presented to explore the strengths and weaknesses of state of the art CFD codes for modeling multi-phase carbon capture reactors. The results of the simulations show that the FLUENT (R) Eulerian-Lagrangian simulations (DDPM) are unstable for the given reactor design; while the BARRACUDA Eulerian-Lagrangian model is able to simulate the system given appropriate simplifying assumptions. FLUENT (R) Eulerian-Eulerian simulations also provide a stable solution for the carbon capture reactor given the appropriate simplifying assumptions. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Ryan, E. M.] Boston Univ, Dept Mech Engn, Boston, MA 02215 USA.
[DeCroix, D.; Dartevelle, S.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Breault, R.; Huckaby, E. D.; Saha, K.] Natl Energy Technol Lab, Morgantown, WV USA.
[Xu, W.; Sun, X.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Ryan, EM (reprint author), Boston Univ, Dept Mech Engn, Boston, MA 02215 USA.
EM ryanem@bu.edu
RI Xu, Wei/M-2742-2013; Ryan, Emily/I-8183-2015;
OI Ryan, Emily/0000-0001-6111-3269; Breault, Ronald/0000-0002-5552-4050
FU U.S. Department of Energy, Office of Fossil Energy's Carbon Capture
Simulation Initiative through the National Energy Technology Laboratory;
agency of the United States Government
FX This work was funded by the U.S. Department of Energy, Office of Fossil
Energy's Carbon Capture Simulation Initiative through the National
Energy Technology Laboratory.; This report was prepared as an account of
work sponsored by an agency of the United States Government. Neither the
United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes any legal
liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product or process disclosed,
or represents that its use would not infringe privately owned rights.
Reference herein to any specific commercial product, process, or service
by trade name, trademark, manufacturer, or otherwise does not
necessarily constitute or imply its endorsement, recommendation, or
favoring by the United States Government or any agency thereof. The
views and opinions of authors expressed herein do not necessarily state
or reflect those of the United States Government or any agency thereof.
NR 19
TC 9
Z9 9
U1 1
U2 39
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD JUL
PY 2013
VL 242
SI SI
BP 117
EP 134
DI 10.1016/j.powtec.2013.01.009
PG 18
WC Engineering, Chemical
SC Engineering
GA 153XO
UT WOS:000319636300013
ER
PT J
AU Horner, RM
Clark, CE
AF Horner, Robert M.
Clark, Corrie E.
TI Characterizing variability and reducing uncertainty in estimates of
solar land use energy intensity
SO RENEWABLE & SUSTAINABLE ENERGY REVIEWS
LA English
DT Review
DE Land occupation; Photovoltaics; Concentrating solar power; Energy
intensity; Electricity; Renewable
ID ELECTRICITY-GENERATION; ENVIRONMENTAL IMPACTS; GEOTHERMAL-ENERGY;
TECHNOLOGIES; ETHANOL; SYSTEMS
AB Estimates of the amount of land used for a defined amount of utility-scale electricity generation in the solar power industry, referred to here as solar land use energy intensity (LUEI), are important to decision makers for evaluating the environmental impact of energy technology choices. However, these estimates for solar LUEI are calculated using three difficult-to-compare metrics and vary by as much as 4 orders of magnitude (0.042-64 m(2)/MWh) across the available literature. This study reduces, characterizes, and explicates the uncertainty in these values for photovoltaic (PV) and concentrated solar power (CSP) technologies through a harmonization process. In this harmonization process, a common metric is identified and data existing in other forms are converted to the metric, where possible; standard algorithms for calculating solar LUEI are developed; gaps and deficiencies in the literature calculations are identified and remedied; and differences among the resulting estimates are characterized and analyzed. The resulting range of harmonized solar LUEI estimates is reduced to 2 orders of magnitude [5-55 (m(2)y)/MWh]. Due to variables such as technology and location, there is a significant amount of irreducible variability in general solar LUEI estimates. However, this variability does not necessarily represent uncertainty, as most of it can be explained by choices in calculation input parameters. This study finds that key solar technology- and location-dependent parameters such as insolation, packing factor, system efficiency, and capacity factor all vary widely across studies, and thus all share in the overall variability of solar LUEI. Only land use at the site of solar electricity generation facilities is considered because lifecycle land use beyond the site (for manufacturing, disposal, etc.) is not widely accounted for in the existing literature. This study provides a basis for moving forward with standardized and comparable solar land use studies and for filling gaps in lifecycle solar LUEI. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Horner, Robert M.; Clark, Corrie E.] Argonne Natl Lab, Washington, DC 20024 USA.
RP Horner, RM (reprint author), Argonne Natl Lab, 955 Enfant Plaza SW,Suite 6000, Washington, DC 20024 USA.
EM rhorner@anl.gov; ceclark@anl.gov
FU U.S. Department of Energy, Office of Energy Efficiency and Renewable
Energy, Solar Energy Technologies Program (SETP) [DE-AC02-06CH11357]
FX This work was supported by the U.S. Department of Energy, Office of
Energy Efficiency and Renewable Energy, Solar Energy Technologies
Program (SETP), under contract DE-AC02-06CH11357. It was developed as
part of the SETP's Market Transformation subprogram which identifies and
prioritizes significant barriers to commercialization of solar
technologies beyond traditional cost issues. SETP staff helped define
the objectives of this work and reviewed and commented on this article.
NR 39
TC 5
Z9 6
U1 4
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-0321
J9 RENEW SUST ENERG REV
JI Renew. Sust. Energ. Rev.
PD JUL
PY 2013
VL 23
BP 129
EP 137
DI 10.1016/j.rser.2013.01.014
PG 9
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Science & Technology - Other Topics; Energy & Fuels
GA 155ZN
UT WOS:000319789600010
ER
PT J
AU Bianchi, M
Liu, HH
Birkholzer, JT
AF Bianchi, Marco
Liu, Hui-Hai
Birkholzer, Jens T.
TI Equivalent diffusion coefficient of clay-rich geological formations:
comparison between numerical and analytical estimates
SO STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
LA English
DT Article
DE Diffusion; Upscaling; Diffusion coefficient; Heterogeneous media;
Anisotropy
ID HETEROGENEOUS POROUS-MEDIA; CALLOVO-OXFORDIAN CLAY; HYDRAULIC
CONDUCTIVITY; STOCHASTIC-ANALYSIS; SOLUTE TRANSPORT; OPALINUS CLAY;
SPATIAL VARIABILITY; MEUSE/HAUTE-MARNE; MONT TERRI; MACRODISPERSION
AB Laboratory experiments in rock samples collected from clay-rich formations indicate that the effective molecular diffusion coefficient (D) is a heterogeneous and anisotropic property. Since laboratory measurements of D are representative of a very small volume, upscaling is necessary in order to incorporate these data in large-scale numerical models of diffusive transport. In this work we address the problem of the estimating the equivalent diffusion coefficient (D (eq) ), in terms of total diffusive flux, in a three-dimensional domain characterized by a heterogeneous and anisotropic spatial distribution of D. D (eq) was estimated from the results of steady-state diffusive transport simulations through several realizations of the D field. The ensemble averages of D (eq) from fields with different degrees of heterogeneity and anisotropy were then compared with estimates from analytical upscaling expressions based on stochastic as well as power-averaging approaches. These expressions are largely based on similar expressions developed for calculating the effective hydraulic conductivity in heterogeneous and anisotropic domains. Comparisons showed that stochastic expressions provide accurate estimates of D (eq) only for fields characterized by low heterogeneity. Within the range of heterogeneity and anisotropy considered, our results showed that a power-averaging expression is very accurate in predicting D (eq) especially when the parameter p (i) is estimated through fitting of the numerical results. Nonetheless, the relationship between this parameter and the anisotropy ratio is linear.
C1 [Bianchi, Marco; Liu, Hui-Hai; Birkholzer, Jens T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Bianchi, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, 1 Cyclotron Rd,Blgd 74, Berkeley, CA 94720 USA.
EM mbianchi@lbl.gov
RI Birkholzer, Jens/C-6783-2011
OI Birkholzer, Jens/0000-0002-7989-1912
FU Used Fuel Disposition Campaign, Office of Nuclear Energy, of the U.S.
Department of Energy [DE-AC02-05CH11231]; Lawrence Berkeley National Lab
FX Funding for this work was provided by the Used Fuel Disposition
Campaign, Office of Nuclear Energy, of the U.S. Department of Energy
under Contract Number DE-AC02-05CH11231 with the Lawrence Berkeley
National Lab. We thank the Associate Editor and two anonymous referees
for their careful review of this manuscript.
NR 57
TC 3
Z9 3
U1 0
U2 10
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1436-3240
J9 STOCH ENV RES RISK A
JI Stoch. Environ. Res. Risk Assess.
PD JUL
PY 2013
VL 27
IS 5
BP 1081
EP 1091
DI 10.1007/s00477-012-0646-1
PG 11
WC Engineering, Environmental; Engineering, Civil; Environmental Sciences;
Statistics & Probability; Water Resources
SC Engineering; Environmental Sciences & Ecology; Mathematics; Water
Resources
GA 155MN
UT WOS:000319752500005
ER
PT J
AU Li, XY
Hu, BX
AF Li, Xinya
Hu, Bill X.
TI Proper orthogonal decomposition reduced model for mass transport in
heterogenous media
SO STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
LA English
DT Article
DE Model reduction; Proper orthogonal decomposition; Galerkin projection;
Mass transport
ID KARHUNEN-LOEVE EXPANSION; IDENTIFICATION; REDUCTION; DYNAMICS; SYSTEMS
AB Numerical models with fine discretization normally demand large computational time and space, which lead to computational burden for state estimations or model parameter inversion calculation. This article presented a reduced implicit finite difference scheme that based on proper orthogonal decomposition (POD) for two-dimensional transient mass transport in heterogeneous media. The reduction of the original full model was achieved by projecting the high-dimension full model to a low-dimension space created by POD bases, and the bases are derived from the snapshots generated from the model solutions of the forward simulations. The POD bases were extracted from the ensemble of snapshots by singular value decomposition. The dimension of the Jacobian matrix was then reduced after Galerkin projection. Thus, the reduced model can accurately reproduce and predict the original model's transport process with significantly decreased computational time. This scheme is practicable with easy implementation of the partial differential equations. The POD method is illustrated and validated through synthetic cases with various heterogeneous permeability field scenarios. The accuracy and efficiency of the reduced model are determined by the optimal selection of the snapshots and POD bases.
C1 [Li, Xinya] Pacific NW Natl Lab, Hydrol Energy & Environm Directorate, Richland, WA 99352 USA.
[Hu, Bill X.] Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA.
RP Hu, BX (reprint author), Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA.
EM bill.x.hu@gmail.com
NR 27
TC 3
Z9 3
U1 2
U2 14
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1436-3240
J9 STOCH ENV RES RISK A
JI Stoch. Environ. Res. Risk Assess.
PD JUL
PY 2013
VL 27
IS 5
BP 1181
EP 1191
DI 10.1007/s00477-012-0653-2
PG 11
WC Engineering, Environmental; Engineering, Civil; Environmental Sciences;
Statistics & Probability; Water Resources
SC Engineering; Environmental Sciences & Ecology; Mathematics; Water
Resources
GA 155MN
UT WOS:000319752500012
ER
PT J
AU Gray, DD
Ogretim, E
Bromhal, GS
AF Gray, Donald D.
Ogretim, Egemen
Bromhal, Grant S.
TI Darcy Flow in a Wavy Channel Filled with a Porous Medium
SO TRANSPORT IN POROUS MEDIA
LA English
DT Article
DE Wavy channel; Porous media; Darcy's law; Flow in a fracture
ID FRACTURES
AB Flow in channels bounded by wavy or corrugated walls is of interest in both technological and geological contexts. This paper presents an analytical solution for the steady Darcy flow of an incompressible fluid through a homogeneous, isotropic porous medium filling a channel bounded by symmetric wavy walls. This packed channel may represent an idealized packed fracture, a situation which is of interest as a potential pathway for the leakage of carbon dioxide from a geological sequestration site. The channel walls change from parallel planes, to small amplitude sine waves, to large amplitude nonsinusoidal waves as certain parameters are increased. The direction of gravity is arbitrary. A plot of piezometric head against distance in the direction of mean flow changes from a straight line for parallel planes to a series of steeply sloping sections in the reaches of small aperture alternating with nearly constant sections in the large aperture bulges. Expressions are given for the stream function, specific discharge, piezometric head, and pressure.
C1 [Gray, Donald D.; Ogretim, Egemen; Bromhal, Grant S.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Gray, Donald D.; Ogretim, Egemen] W Virginia Univ, Dept Civil & Environm Engn, Morgantown, WV 26506 USA.
RP Gray, DD (reprint author), W Virginia Univ, Dept Civil & Environm Engn, Morgantown, WV 26506 USA.
EM gray@cemr.wvu.edu; Egemen.ogretim@gediz.edu.tr; Bromhal@netl.doe.gov
FU National Energy Technology Laboratory under the RES [DE-FE0004000]
FX This technical effort was performed in support of the National Energy
Technology Laboratory's ongoing research in CO2 capture under
the RES contract DE-FE0004000.
NR 14
TC 2
Z9 2
U1 2
U2 12
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0169-3913
J9 TRANSPORT POROUS MED
JI Transp. Porous Media
PD JUL
PY 2013
VL 98
IS 3
BP 743
EP 753
DI 10.1007/s11242-013-0170-x
PG 11
WC Engineering, Chemical
SC Engineering
GA 159HL
UT WOS:000320036400014
ER
PT J
AU Wenzel, T
AF Wenzel, Tom
TI The effect of recent trends in vehicle design on US societal fatality
risk per vehicle mile traveled, and their projected future relationship
with vehicle mass
SO ACCIDENT ANALYSIS AND PREVENTION
LA English
DT Article
DE Fatality risk; Logistic regression; Vehicle mass; Vehicle footprint;
Side airbags; ESC; Compatibility
ID DRIVER CASUALTY RATES; ACCIDENT RECORD; SAFETY IMPACTS; GREAT-BRITAIN;
PICKUP TRUCKS; BRITISH INDEX; CAR MODELS; SUVS
AB The National Highway Traffic Safety Administration (NHTSA) recently updated its 2003 and 2010 logistic regression analyses of the effect of a reduction in light-duty vehicle mass on US fatality risk per vehicle mile traveled (VMT). The current NHTSA analysis is the most thorough investigation of this issue to date. LBNL's assessment of the analysis indicates that the estimated effect of mass reduction on risk is smaller than in the previous studies, and statistically non-significant for all but the lightest cars.
The effects three recent trends in vehicle designs and technologies have on societal fatality risk per VMT are estimated, and whether these changes might affect the relationship between vehicle mass and fatality risk in the future. Side airbags are found to reduce fatality risk in cars, but not necessarily light trucks or CUVs/minivans, struck in the side by another light-duty vehicle; reducing the number of fatalities in cars struck in the side is predicted to reduce the estimated detrimental effect of footprint reduction, but increase the detrimental effect of mass reduction, in cars on societal fatality risk. Better alignment of light truck bumpers with those of other vehicles appears to result in a statistically significant reduction in risk imposed on car occupants; however, reducing this type of fatality will likely have little impact on the estimated effect of mass or footprint reduction on risk. Finally, shifting light truck drivers into safer, car-based vehicles, such as sedans, CUVs, and minivans, would result in larger reductions in societal fatalities than expected from even substantial reductions in the masses of light trucks. A strategy of shifting drivers from truck-based to car-based vehicles would reduce fuel use and greenhouse gas emissions, while improving societal safety. (C) 2013 Elsevier Ltd. All rights reserved.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Wenzel, T (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,90R2000, Berkeley, CA 94720 USA.
EM TPWenzel@lbl.gov
NR 20
TC 2
Z9 2
U1 1
U2 16
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0001-4575
J9 ACCIDENT ANAL PREV
JI Accid. Anal. Prev.
PD JUL
PY 2013
VL 56
BP 71
EP 81
DI 10.1016/j.aap.2013.03.019
PG 11
WC Ergonomics; Public, Environmental & Occupational Health; Social
Sciences, Interdisciplinary; Transportation
SC Engineering; Public, Environmental & Occupational Health; Social
Sciences - Other Topics; Transportation
GA 153WK
UT WOS:000319633000007
PM 23631906
ER
PT J
AU Morgan, SW
King, JC
Pope, CL
AF Morgan, Sarah W.
King, Jeffrey C.
Pope, Chad L.
TI Simulation of neutron radiograph images at the Neutron Radiography
Reactor
SO ANNALS OF NUCLEAR ENERGY
LA English
DT Article
DE Characteristic curve; Neutron radiography; Transfer method radiography;
Image simulation
AB The ability to accurately simulate potential radiographic images produced by a radiographic facility can improve the facility's ability to design experiments and evaluate images. The image simulation methods detailed in this paper predict the radiographic image of an object based on the foil reaction rate data obtained by placing a model of the object in front of the image plane in a Monte Carlo beamline model. The image simulation method utilizes a characteristic curve relating foil activity to optical density for the film and foil combination in use at the Neutron Radiography Reactor. The simulation validation compared a radiograph of a polyethylene step block to a simulated radiograph of the same step block. The simulation accurately predicts the optical density in each region of a radiograph of the step block. The simulated radiograph predicts the average optical density of the actual radiograph more accurately for the thinner steps, resulting in step averaged optical density differences between the actual and simulated images of -11.6% for the thinnest step versus a difference of -34.7% for the thickest step, possibly due to the greater accuracy of the higher optical density region of the characteristic curve. Applying the scanner calibration curve to the calculated optical density values decreases the difference between the actual radiograph pixel values and the simulated pixel values for each step except the thinnest step. The step averaged differences between the corrected and actual images increase from -11.6% to -17.0% for the thinnest step and decrease from -34.7% to +7.7% for the thickest step after the calibration curve is applied. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Morgan, Sarah W.; King, Jeffrey C.] Colorado Sch Mines, Nucl Sci & Engn Program, Golden, CO 80401 USA.
[Pope, Chad L.] Idaho Natl Lab, Scoville, ID 83415 USA.
RP King, JC (reprint author), Colorado Sch Mines, Nucl Sci & Engn Program, 1500 Illinois St, Golden, CO 80401 USA.
EM kingjc@mines.edu
FU Idaho National Laboratory
FX The authors wish to acknowledge Doug Porter, Sean Cunningham, Glen
Pappiouannou, and Fred Gholson of the Idaho National Laboratory for
their assistance in completing the experiments necessary for this
research. This project was funded by a grant from the Idaho National
Laboratory.
NR 20
TC 1
Z9 1
U1 0
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4549
J9 ANN NUCL ENERGY
JI Ann. Nucl. Energy
PD JUL
PY 2013
VL 57
BP 341
EP 349
DI 10.1016/j.anucene.2013.02.010
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 154AD
UT WOS:000319643000041
ER
PT J
AU Song, GL
Liu, MH
AF Song, Guang-Ling
Liu, Minghong
TI Corrosion and electrochemical evaluation of an Al-Si-Cu aluminum alloy
in ethanol solutions
SO CORROSION SCIENCE
LA English
DT Article
DE Al alloy; Ethanol fuel; Corrosion
ID SN-BI ALLOYS; IMPEDANCE SPECTROSCOPY; ACETIC-ACID; BEHAVIOR; FUEL;
PROTECTION
AB The corrosion of aluminum alloy AlSi8Cu3Fe(Zn) in ethanol and ethanol solutions containing 10 vol.% water and 10 vol.% acetic acid, respectively, was investigated by means of electrochemical impedance spectroscopy (EIS), polarization curve, immersion, optical microscopy, scanning electron microscopy and element mapping. The Al alloy in the ethanol and its solutions exhibited a capacitive loop in the measured Nyquist EIS spectra at high frequencies, which can be attributed to the ethanol's dielectric response. Addition of 10 vol.% acetic acid increased the ethanol corrosivity more significantly than the same amount of water addition. The Al-Si-Cu-Mg precipitated zones in the alloy were susceptible to corrosion attack due to the micro-galvanic effect by the Cu-containing precipitates. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Song, Guang-Ling] GM Global Res & Dev, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA.
[Liu, Minghong] Meda Engn & Tech Serv, Southfield, MI 48075 USA.
RP Song, GL (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, 1 Bethel Valley Rd,POB 2008,MS-6156, Oak Ridge, TN 37831 USA.
EM songg@ornl.gov
RI Song, Guang-Ling/D-9540-2013
OI Song, Guang-Ling/0000-0002-9802-6836
NR 29
TC 15
Z9 16
U1 4
U2 44
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0010-938X
J9 CORROS SCI
JI Corrosion Sci.
PD JUL
PY 2013
VL 72
BP 73
EP 81
DI 10.1016/j.corsci.2013.03.009
PG 9
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 153XV
UT WOS:000319637000010
ER
PT J
AU Zhou, S
Kyle, GP
Yu, S
Clarke, LE
Eom, J
Luckow, P
Chaturvedi, V
Zhang, XL
Edmonds, JA
AF Zhou, Sheng
Kyle, G. Page
Yu, Sha
Clarke, Leon E.
Eom, Jiyong
Luckow, Patrick
Chaturvedi, Vaibhav
Zhang, Xiliang
Edmonds, James A.
TI Energy use and CO2 emissions of China's industrial sector from a global
perspective
SO ENERGY POLICY
LA English
DT Article
DE Industry energy; CO2 emission; Saturation effect
ID STRATEGIES; FRAMEWORK; DEMAND
AB The industrial sector has accounted for more than 50% of China's final energy consumption in the past 30 years. Understanding the future emissions and emissions mitigation opportunities depends on proper characterization of the present-day industrial energy use, as well as industrial demand drivers and technological opportunities in the future. Traditionally, however, integrated assessment research has handled the industrial sector of China in a highly aggregate form. In this study, we develop a technologically detailed, service-oriented representation of 11 industrial subsectors in China, and analyze a suite of scenarios of future industrial demand growth. We find that, due to anticipated saturation of China's per-capita demands of basic industrial goods, industrial energy demand and CO2 emissions approach a plateau between 2030 and 2040, then decrease gradually. Still, without emissions mitigation policies, the industrial sector remains heavily reliant on coal, and therefore emissions-intensive. With carbon prices, we observe some degree of industrial sector electrification, deployment of CCS at large industrial point sources of CO2 emissions at low carbon prices, an increase in the share of CHP systems at industrial facilities. These technological responses amount to reductions of industrial emissions (including indirect emission from electricity) are of 24% in 2050 and 66% in 2095. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Zhou, Sheng; Zhang, Xiliang] Tsinghua Univ, Inst Energy Environm & Econ, Beijing 100084, Peoples R China.
[Kyle, G. Page; Yu, Sha; Clarke, Leon E.; Eom, Jiyong; Luckow, Patrick; Chaturvedi, Vaibhav; Edmonds, James A.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
RP Zhou, S (reprint author), Tsinghua Univ, Inst Energy Environm & Econ, Beijing 100084, Peoples R China.
EM zhshinet@tsinghua.edu.cn
RI Eom, Jiyong/A-1161-2014
FU Ministry of Science and Technology (MOST) of China [2012BAC20B01]; China
Scholar Council (CSC); Integrated Assessment Research Program in the
Office of Science of the U.S. Department of Energy [DE-AC05-76RL01830]
FX This study is supported by the Ministry of Science and Technology (MOST)
of China (Grant no. 2012BAC20B01), and also supported by China Scholar
Council (CSC). The authors are grateful for research support provided by
the Integrated Assessment Research Program in the Office of Science of
the U.S. Department of Energy under Contract No. DE-AC05-76RL01830. The
views and opinions expressed in this paper are those of the authors
alone.
NR 57
TC 11
Z9 13
U1 0
U2 63
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
J9 ENERG POLICY
JI Energy Policy
PD JUL
PY 2013
VL 58
BP 284
EP 294
DI 10.1016/j.enpol.2013.03.014
PG 11
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA 147OV
UT WOS:000319177800029
ER
PT J
AU Cassata, WS
Renne, PR
AF Cassata, William S.
Renne, Paul R.
TI Systematic variations of argon diffusion in feldspars and implications
for thermochronometry
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID AR-40/AR-39 K-FELDSPAR; THERMAL-EXPANSION; PHASE-TRANSITION; ALKALI
FELDSPARS; PLAGIOCLASE FELDSPARS; HIGH ALBITE; X-RAY; DISPLACIVE
TRANSFORMATION; INTERMEDIATE PLAGIOCLASE; CALCIC PLAGIOCLASE
AB Coupled information about the time-dependent production and temperature-dependent diffusion of radiogenic argon in feldspars can be used to constrain the thermal evolution attending a host of Earth and planetary processes. To better assess the accuracy of thermal models, an understanding of the mechanisms and pathways by which argon diffuses in feldspars is desirable. Here we present step-heating Ar diffusion experiments conducted on feldspars with diverse compositions, structural states, and microstructural characteristics. The experiments reveal systematic variations in diffusive behavior that appear closely related to these variables, with apparent closure temperatures for 0.1-1 mm grains of similar to 200-400 degrees C (assuming a 10 degrees C/Ma cooling rate). Given such variability, there is no broadly applicable set of diffusion parameters that can be utilized in feldspar thermal modeling; sample-specific data are required. Diffusion experiments conducted on oriented cleavage flakes do not reveal directionally-dependent diffusive anisotropy to within the resolution limits of our approach (approximately a factor of 2). Additional experiments aimed at constraining the physical significance of the diffusion domain are presented and indicate that unaltered feldspar crystals with or without coherent exsolution lamellae diffuse at the grain-scale, whereas feldspars containing hydrothermal alteration and/or incoherent sub-grain intergrowths do not. Arrhenius plots for argon diffusion in plagioclase and alkali feldspars appear to reflect a confluence of intrinsic diffusion kinetics and structural transitions that occur during incremental heating experiments. These structural transitions, along with sub-grain domain size variations, cause deviations from linearity (i.e., upward and downward curvature) on Arrhenius plots. An atomistic model for Arrhenius behavior is proposed that incorporates the variable lattice deformations of different feldspars in response to heating and compression. The resulting implications for accurately extrapolating laboratory-derived diffusion parameters to natural settings and over geologic time are discussed. We find that considerable inaccuracies may exist in published thermal histories obtained using multiple diffusion domain (MDD) models fit to Arrhenius plots for exsolved alkali feldspar, where the inferred Ar partial retention zones may be spuriously hot. (C) 2013 Elsevier Ltd. All rights reserved.
C1 Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
Berkeley Geochronol Ctr, Berkeley, CA 94709 USA.
RP Cassata, WS (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM cassata2@llnl.gov; prenne@bgc.org
FU U.S. National Science Foundation Petrology and Geochemistry Program
[EAR-0838572]; Ann and Gordon Getty Foundation; National Science
Foundation Graduate Research Fellowship
FX David Shuster, Tim Becker, Al Deino, and Greg Balco are thanked for
laboratory assistance, Sean Mulcahy and Kent Ross for electron
microprobe assistance, Simon Kelley for providing access to his
UV-laserprobe facilities and assistance acquiring in situ data on the
Bushveld Complex plagioclase crystals, Becky Smith for orienting
cleavage flakes using EBSD, and Darren Mark and Kevin Righter for
generously providing samples. We are grateful to Rudy Wenk for helpful
discussions regarding feldspar structures and for access to his
collection of plagioclase samples. W. Hames, I. Villa, and an anonymous
reviewer are thanked for thoughtful and constructive reviews of the
manuscript, and C. Hall is thanked for handling the manuscript. We
acknowledge financial support from the U.S. National Science Foundation
Petrology and Geochemistry Program (grant EAR-0838572) and the Ann and
Gordon Getty Foundation. W.S. Cassata was supported by a National
Science Foundation Graduate Research Fellowship.
NR 134
TC 25
Z9 25
U1 2
U2 33
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD JUL 1
PY 2013
VL 112
BP 251
EP 287
DI 10.1016/j.gca.2013.02.030
PG 37
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 144WP
UT WOS:000318972800016
ER
PT J
AU Kobayashi, H
Lorente, S
Anderson, R
Bejan, A
AF Kobayashi, H.
Lorente, S.
Anderson, R.
Bejan, A.
TI Underground heat flow patterns for dense neighborhoods with heat pumps
SO INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
LA English
DT Article
DE Constructal; Heat pump; Urban design; Ground coupled
ID CONSTRUCTAL LAW; DESIGN; EXCHANGER; EVOLUTION; SYSTEMS; WELLS
AB In this paper we consider the placement of buildings with ground coupled heat pumps on a densely populated area. The assemblies of pipes that constitute the ground heat exchangers occupy volumes that are shaped as parallelepipeds, the short dimension of which is vertical. Viewed from above, the assemblies occupy rectangular areas with variable shapes. Two area sizes are considered: few large areas surrounded by many smaller areas. The area shapes are viewed systematically such that the total heat transfer rate between ground and buried assemblies is maximum. For each shape of the large assembly, the best shape of each smaller assembly is the most slender that can be installed on its available territory. This feature of the neighborhood design does not change when the volume fraction occupied by all the assemblies increases. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Kobayashi, H.] Ajinomoto Co Inc, Prod &Technol Adm Ctr, Engn Technol Dept, Kawasaki Ku, Kawasaki, Kanagawa 210, Japan.
[Kobayashi, H.; Bejan, A.] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
[Lorente, S.] Univ Toulouse, UPS, INSA, LMDC, F-31077 Toulouse 04, France.
[Anderson, R.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Bejan, A (reprint author), Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
EM abejan@duke.edu
FU Ajinomoto Co. Inc.; National Renewable Energy Laboratory, Golden,
Colorado [XXL-1-40325-01]
FX We thank Ajinomoto Co. Inc. for supporting Mr. H. Kobayashi's work at
Duke University. Profs. Bejan and Lorente's work was supported by a
subcontract (XXL-1-40325-01) from the National Renewable Energy
Laboratory, Golden, Colorado.
NR 20
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U1 0
U2 8
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0017-9310
J9 INT J HEAT MASS TRAN
JI Int. J. Heat Mass Transf.
PD JUL
PY 2013
VL 62
BP 632
EP 637
DI 10.1016/j.ijheatmasstransfer.2013.03.030
PG 6
WC Thermodynamics; Engineering, Mechanical; Mechanics
SC Thermodynamics; Engineering; Mechanics
GA 146IT
UT WOS:000319085500068
ER
PT J
AU Tasora, A
Anitescu, M
Negrini, S
Negrut, D
AF Tasora, A.
Anitescu, M.
Negrini, S.
Negrut, D.
TI A compliant visco-plastic particle contact model based on differential
variational inequalities
SO INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
LA English
DT Article
DE Variational inequalities; Contacts; Plasticity; Friction
ID RIGID-BODY DYNAMICS; FRICTIONAL CONTACT; LARGE-SCALE
AB This work describes an approach to simulate contacts between three-dimensional shapes with compliance and damping using the framework of the differential variational inequality theory. Within the context of non-smooth dynamics, we introduce an extension to the classical set-valued model for frictional contacts between rigid bodies, allowing contacts to experience local compliance, viscosity, and plasticization. Different types of yield surfaces can be defined for various types of contact, a versatile approach that contains the classic dry Coulomb friction as a special case. The resulting problem is a differential variational inequality that can be solved, at each integration time step, as a variational inequality over a convex set. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Tasora, A.] Univ Parma, Dipartimento Ingn Ind, I-43100 Parma, Italy.
[Anitescu, M.] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA.
[Negrini, S.] Politecn Milan, Dept Mech Engn, I-20126 Milan, Italy.
[Negrut, D.] Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USA.
RP Tasora, A (reprint author), Univ Parma, Dipartimento Ingn Ind, I-43100 Parma, Italy.
EM alessandro.tasora@unipr.it; anitescu@mcs.anl.gov;
silvia.negrini@mail.polimi.it; negrut@cae.wisc.edu
FU National Science Foundation [CMMI0840442]; Ferrari Automotive and TP
Engineering; U.S. Department of Energy [DE-AC02-06CH11357]
FX Financial support for D. Negrut was provided in part by the National
Science Foundation Award CMMI0840442. A. Tasora thanks Ferrari
Automotive and TP Engineering for financial support. Mihai Anitescu was
supported by U.S. Department of Energy under Contract No.
DE-AC02-06CH11357.
NR 29
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U1 0
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0020-7462
J9 INT J NONLIN MECH
JI Int. J. Non-Linear Mech.
PD JUL
PY 2013
VL 53
SI SI
BP 2
EP 12
DI 10.1016/j.ijnonlinmec.2013.01.010
PG 11
WC Mechanics
SC Mechanics
GA 152QD
UT WOS:000319545300002
ER
PT J
AU Terrani, KA
Parish, CM
Shin, D
Pint, BA
AF Terrani, Kurt A.
Parish, Chad M.
Shin, Dongwon
Pint, Bruce A.
TI Protection of zirconium by alumina- and chromia-forming iron alloys
under high-temperature steam exposure
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID STAINLESS-STEEL; ZR SYSTEM; FE-ZR; DIFFUSION; ZIRCALOY-4; OXIDATION;
ENVIRONMENTS; PRESSURE
AB The viability of advanced oxidation-resistant Fe-base alloys to protect zirconium from rapid oxidation in high-temperature steam environments has been examined. Specimens were produced such that outer layers of FeCrAl ferritic alloy and Type 310 austenitic stainless steel were incorporated on the surface of zirconium metal slugs. The specimens were exposed to high-temperature 0.34 MPa steam at 1200 and 1300 degrees C. The primary degradation mechanism for the protective layer was interdiffusion with the zirconium, as opposed to high-temperature oxidation in steam. The FeCrAl layer experienced less degradation and protected the zirconium at 1300 degrees C for 8 h. Constituents of the Fe-base alloys rapidly diffused into the zirconium and resulted in the formation of various intermetallic layers at the interface and precipitates inside the bulk zirconium. The nature of this interaction for FeCrAl and 310SS has been characterized by use of microscopic techniques as well as computational thermodynamics. Finally, a reactor physics discussion on the applicability of these protective layers in light-water-reactor nuclear fuel structures is offered. Published by Elsevier B.V.
C1 [Terrani, Kurt A.] Oak Ridge Natl Lab, Fuel Cycle & Isotopes Div, Oak Ridge, TN 37831 USA.
[Parish, Chad M.; Shin, Dongwon; Pint, Bruce A.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Terrani, KA (reprint author), Oak Ridge Natl Lab, Fuel Cycle & Isotopes Div, Oak Ridge, TN 37831 USA.
EM terranika@ornl.gov
RI Pint, Bruce/A-8435-2008; Parish, Chad/J-8381-2013; Shin,
Dongwon/C-6519-2008
OI Pint, Bruce/0000-0002-9165-3335; Shin, Dongwon/0000-0002-5797-3423
FU ORNL's Shared Research Equipment (ShaRE) User Facility; Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy; Advanced Fuels Campaign of the Fuel Cycle R&D program in the
Office of Nuclear Energy, U.S. Department of Energy; Laboratory Directed
RD funds at ORNL
FX The authors would like to thank C. Schaich, A. Frederick, J. Mayotte,
and J. Keiser at ORNL for assistance with the experimental work. The
reactivity calculations presented here were performed by Nathan George
of the University of Tennessee, Knoxville. Use of the JEOL 6500 FEG-SEM
was supported by ORNL's Shared Research Equipment (ShaRE) User Facility,
which is sponsored by the Scientific User Facilities Division, Office of
Basic Energy Sciences, U.S. Department of Energy. The work presented in
this paper was supported partially by the Advanced Fuels Campaign of the
Fuel Cycle R&D program in the Office of Nuclear Energy, U.S. Department
of Energy as well as by Laboratory Directed R&D funds at ORNL.
NR 33
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U1 4
U2 45
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JUL
PY 2013
VL 438
IS 1-3
BP 64
EP 71
DI 10.1016/j.jnucmat.2013.03.006
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 151SY
UT WOS:000319481700011
ER
PT J
AU Dayal, P
Bhattacharyya, D
Mook, WM
Fu, EG
Wang, YQ
Carr, DG
Anderoglu, O
Mara, NA
Misra, A
Harrison, RP
Edwards, L
AF Dayal, P.
Bhattacharyya, D.
Mook, W. M.
Fu, E. G.
Wang, Y. -Q
Carr, D. G.
Anderoglu, O.
Mara, N. A.
Misra, A.
Harrison, R. P.
Edwards, L.
TI Effect of double ion implantation and irradiation by Ar and He ions on
nano-indentation hardness of metallic alloys
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID NANOINDENTATION
AB In this study, the authors have investigated the combined effect of a double layer of implantation on four different metallic alloys, ODS steel MA957, Zircaloy-4, Ti-6Al-4V titanium alloy and stainless steel 316, by ions of two different species - He and Ar - on the hardening of the surface as measured by nanoindentation. The data was collected for a large number of indentations using the Continuous Stiffness Method or "CSM" mode, applying the indents on the implanted surface. Careful analysis of the data in the present investigations show that the relative hardening due to individual implantation layers can be used to obtain an estimate of the relative hardening effect of a combination of two separate implanted layers of two different species. This combined hardness was found to lie between the square root of the sum of the squares of individual hardening effects, (Delta H-A(2) + Delta H-B(2))(0.5) as the lower limit and the sum of the individual hardening effects, (Delta H-A + Delta H-B) as the upper limit, within errors, for all depths measured. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
C1 [Dayal, P.; Bhattacharyya, D.; Carr, D. G.; Harrison, R. P.; Edwards, L.] Australian Nucl Sci & Technol Org, Inst Mat Engn, Lucas Heights, NSW 2234, Australia.
[Mook, W. M.; Mara, N. A.; Misra, A.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87544 USA.
[Fu, E. G.; Wang, Y. -Q; Anderoglu, O.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Bhattacharyya, D (reprint author), Australian Nucl Sci & Technol Org, Inst Mat Engn, Lucas Heights, NSW 2234, Australia.
EM dhb@ansto.gov.au
RI Mara, Nathan/J-4509-2014; Misra, Amit/H-1087-2012; Carr,
David/G-2530-2010; Edwards, Lyndon/D-1916-2013;
OI Carr, David/0000-0003-1134-5496; Edwards, Lyndon/0000-0001-7526-6020;
Mara, Nathan/0000-0002-9135-4693
FU Center for Materials at Irradiation and Mechanical Extremes, an Energy
Frontier Research Center; DOE, Office of Science, Office of Basic Energy
Sciences, USA; DOE, Office of Science, Office of Basic Energy Sciences
FX The ion irradiation work at Los Alamos National Laboratory (LANL) was
supported through Center for Materials at Irradiation and Mechanical
Extremes, an Energy Frontier Research Center funded by DOE, Office of
Science, Office of Basic Energy Sciences, USA. Access to the Center for
Integrated Nanotechnologies (CINT) at LANL for nanoindentation is
acknowledged. CINT is a DOE, Office of Science, Office of Basic Energy
Sciences funded user facility. The help of Pat Dickerson in preparing
FIB TEM samples is also greatly appreciated. The enormous help of Tim
Palmer and Clint Jennison of the Metallography Lab at the Institute of
Materials Engineering in ANSTO in preparing the samples for irradiation
is also gratefully acknowledged.
NR 20
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JUL
PY 2013
VL 438
IS 1-3
BP 108
EP 115
DI 10.1016/j.jnucmat.2013.02.078
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 151SY
UT WOS:000319481700017
ER
PT J
AU Ortega, LH
Kaminski, MD
Zeng, ZT
Cunnane, J
AF Ortega, Luis H.
Kaminski, Michael D.
Zeng, Zuotao
Cunnane, James
TI Nuclear fuel cycle waste stream immobilization with cermets for improved
thermal properties and waste consolidation
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID GLASSES
AB In the pursuit of methods to improve nuclear waste form thermal properties and combine potential nuclear fuel cycle wastes, a bronze alloy was combined with an alkali, alkaline earth metal bearing ceramic to form a cermet. The alloy was prepared from copper and tin (10 mass%) powders. Pre-sintered ceramic consisting of cesium, strontium, barium and rubidium alumino-silicates was mixed with unalloyed bronze precursor powders and cold pressed to 300 x 10(3) kPa, then sintered at 600 degrees C and 800 degrees C under hydrogen. Cermets were also prepared that incorporated molybdenum, which has a limited solubility in glass, under similar conditions. The cermet thermal conductivities were seven times that of the ceramic alone. These improved thermal properties can reduce thermal gradients within the waste forms thus lowering internal temperature gradients and thermal stresses, allowing for larger waste forms and higher waste loadings. These benefits can reduce the total number of waste packages necessary to immobilize a given amount of high level waste and immobilize troublesome elements. Published by Elsevier B.V.
C1 [Ortega, Luis H.] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA.
[Kaminski, Michael D.; Cunnane, James] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Zeng, Zuotao] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
RP Ortega, LH (reprint author), Texas A&M Univ, Dept Nucl Engn, 3133 TAMU, College Stn, TX 77843 USA.
EM bertortega@tamu.edu; kaminski@anl.gov; zeng@anl.gov; cunnane@anl.gov
OI Ortega, Luis/0000-0003-4917-3167
FU US DOE Fuel Cycle R&D Separations and Waste Form Campaign
FX This work has been funded by US DOE Fuel Cycle R&D Separations and Waste
Form Campaign.
NR 18
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U1 1
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
J9 J NUCL MATER
JI J. Nucl. Mater.
PD JUL
PY 2013
VL 438
IS 1-3
BP 126
EP 133
DI 10.1016/j.jnucmat.2013.02.081
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 151SY
UT WOS:000319481700019
ER
PT J
AU Park, ES
Kim, DH
Kim, HJ
Bae, JC
Huh, MY
AF Park, E. S.
Kim, D. H.
Kim, H. J.
Bae, J. C.
Huh, M. Y.
TI Plastic stress-strain behavior of a Zr-based bulk metallic glass at high
strain rates in the supercooled liquid region
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Bulk metallic glass; Plastic stress-strain curve; Solid metal lubricant;
Strain rate
ID DEFORMATION-BEHAVIOR; MECHANICAL-BEHAVIOR; AMORPHOUS-ALLOYS;
TEMPERATURES; STATE
AB The stress-strain curves of Zr-based bulk metallic glass (BMG) at high strain rates were determined by the compression test at a temperature in the supercooled liquid region. Using solid metal lubricant (SML) sheets, the compression test was successfully carried out without failure up to a strain of 0.68, even at a strain rate of 10/s. The finite element method calculations were carried out for clarifying the role of the SML during compression tests. Published by Elsevier B.V.
C1 [Park, E. S.; Kim, D. H.] US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA.
[Kim, H. J.; Bae, J. C.] Korea Inst Ind Technol, Liquid Proc & Casting Technol R&D Dept, Inchon 406130, South Korea.
[Huh, M. Y.] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea.
RP Park, ES (reprint author), US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA.
EM espark@ameslab.gov
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U1 0
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PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD JUL 1
PY 2013
VL 574
BP 54
EP 59
DI 10.1016/j.msea.2013.03.014
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 146JT
UT WOS:000319088100008
ER
PT J
AU Morrow, BM
McCabe, RJ
Cerreta, EK
Tome, CN
AF Morrow, B. M.
McCabe, R. J.
Cerreta, E. K.
Tome, C. N.
TI Variability in EBSD statistics for textured zirconium
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Electron backscatter diffraction (EBSD); Twinning; Zirconium
ID ELECTRON BACKSCATTER DIFFRACTION; TWIN STATISTICS; MAGNESIUM
AB Zirconium is an important structural material, and, as with other hexagonal close-packed (HCP) metals, the mechanical properties depend on both slip and twinning. Electron backscatter diffraction (EBSD) from two-dimensional (2D) metallographic sections has previously been used to identify and quantify deformation twinning to support development of physically based plasticity models for HCP metals. However, the stereological assumptions used to generate twin statistics from a single 2D section have not been fully validated against potential sources of measurement artifacts or biases potentially arising from the strong initial material textures and crystallographic nature of twinning. This work addresses these concerns by comparing results from three orthogonal directions in a deformed sample. Few differences are observed in the twin statistics based on viewing direction. Statistical variability of microstructures is a bigger factor in the comparison of twin statistics than viewing direction. {10 (1) over bar2} twinning does not occur homogeneously throughout the microstructure during a compression test. However, useful twin statistics can be successfully extracted from a single metallographic section. Published by Elsevier B.V.
C1 [Morrow, B. M.; McCabe, R. J.; Cerreta, E. K.; Tome, C. N.] Los Alamos Natl Lab, MST Div, Los Alamos, NM 87545 USA.
RP Morrow, BM (reprint author), Los Alamos Natl Lab, MST Div, POB 1663, Los Alamos, NM 87545 USA.
EM morrow@lanl.gov
RI Morrow, Benjamin/F-3509-2012; Tome, Carlos/D-5058-2013;
OI Morrow, Benjamin/0000-0003-1925-4302; McCabe, Rodney
/0000-0002-6684-7410
FU Department of Energy, Basic Energy Science Project [FWP 06SCPE401]
FX This work was fully funded by the Department of Energy, Basic Energy
Science Project FWP 06SCPE401. All microscopy was performed at the
Electron Microscopy Laboratory at Los Alamos National Laboratory. Louis
Vernon helped to process the local twin fraction data.
NR 20
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U1 1
U2 24
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD JUL 1
PY 2013
VL 574
BP 157
EP 162
DI 10.1016/j.msea.2013.02.043
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 146JT
UT WOS:000319088100021
ER
PT J
AU Floyd, J
Alpy, N
Moisseytse, A
Haubensack, D
Rodriguez, G
Sienicki, J
Avakian, G
AF Floyd, J.
Alpy, N.
Moisseytse, A.
Haubensack, D.
Rodriguez, G.
Sienicki, J.
Avakian, G.
TI A numerical investigation of the sCO(2) recompression cycle off-design
behaviour, coupled to a sodium cooled fast reactor, for seasonal
variation in the heat sink temperature
SO NUCLEAR ENGINEERING AND DESIGN
LA English
DT Article
ID DIOXIDE BRAYTON CYCLE; EFFICIENCY
AB Supercritical CO2 cycles are particularly attractive for Generation IV Sodium-Cooled Fast Reactors (SFRs) as they can be simple and compact, but still offer steam-cycle equivalent efficiency while also removing potential for Na/H2O reactions. However, CO2 thermophysical properties are very sensitive close to the critical point which raises, in particular, questions about the compressor and so cycle off-design behaviour when subject to inevitable temperature increases that result from seasonal variations in the heat sink temperature. This publication reports the numerical investigation of such an issue that has been performed using the Plant Dynamics Code (ANL, USA), the cycle being optimised for the next French SFR, ASTRID (1500 MWth), as a test-case. On design, the net plant efficiency is 42.2% for a high pressure (25 MPa) turbine with an inlet temperature of 515 degrees C and considering a cycle low temperature of 35 degrees C.
The off-design cycle behaviour is studied based on preliminary designs for the main components and assuming the use of a fixed heat sink flow rate. First results obtained using a common fixed shaft speed for all turbomachines, without any other active control, show no stability issues and roughly constant density (and volumetric flow rate) at the main compressor inlet for the range of heat sink temperature considered (21-40 degrees C). This occurs because the new stationary states are found without requiring a significant shift of mass to the higher pressure level, meaning the compressor inlet pressure rises in concert with temperature. A significant fall in the loop thermal power and efficiency is observed however, which analysis reveals to be caused by a fall in pressure ratio that is an inevitable result of the non-ideal nature of sCO(2). Indeed the difference in the compressors off-design performance (the recompression cycle arrangement features 2 parallel compressors) is such that more mass-flow is attracted in the bypass line, which has a negative impact on cycle efficiency. A second series of results are taken for which the main compressor speed alone is controlled (between 50 and 56 rev/s) and successfully maintains a constant thermal power across the sodium-CO2 heat exchanger. The resulting higher pressure ratio (compared to the fixed speed results) and greater flow rate through the main compressor also lead to higher cycle efficiencies that are close to the optimum achievable for a given heat sink temperature. The series of tests reveals that to achieve a constant thermal power and high efficiency with the sCO(2) cycle at elevated heat sink temperatures, a degree-of-freedom in the compressor performance is necessary. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Floyd, J.; Alpy, N.; Haubensack, D.; Avakian, G.] CEA, DEN, Dept Etud Reacteurs, Serv Etud Syst Innovants, F-13108 St Paul Les Durance, France.
[Moisseytse, A.; Sienicki, J.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Rodriguez, G.] CEA, DEN, Dept Technol Nucl, F-13108 St Paul Les Durance, France.
RP Alpy, N (reprint author), CEA, DEN, Dept Etud Reacteurs, Serv Etud Syst Innovants, F-13108 St Paul Les Durance, France.
EM jeremy.floyd@cea.fr; nicolas.alpy@cea.fr; amoissey@anl.gov;
david.haubensack@cea.fr; gilles.rodriguez@cea.fr; sienicki@ani.gov;
gilles.avakian@cea.fr
NR 46
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U1 2
U2 25
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0029-5493
J9 NUCL ENG DES
JI Nucl. Eng. Des.
PD JUL
PY 2013
VL 260
BP 78
EP 92
DI 10.1016/j.nucengdes.2013.03.024
PG 15
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 154BF
UT WOS:000319645800008
ER
PT J
AU Mohanty, S
Majumdar, S
Srinivasan, M
AF Mohanty, Subhasish
Majumdar, Saurindranath
Srinivasan, Makuteswara
TI Constitutive modeling and finite element procedure development for
stress analysis of prismatic high temperature gas cooled reactor
graphite core components
SO NUCLEAR ENGINEERING AND DESIGN
LA English
DT Article
ID PREDICTION; CODE
AB High temperature gas cooled reactors, such as prismatic and pebble bed reactors, are increasingly becoming popular because of their inherent safety, high temperature process heat output, and high efficiency in nuclear power generation. In prismatic reactors, hexagonal graphite bricks are used as reflectors and fuel bricks. In the reactor environment, graphite bricks experience high temperature and neutron dose. This leads to dimensional changes (swelling and or shrinkage) of these bricks. Irradiation dimensional changes may affect the structural integrity of the individual bricks as well as of the overall core. The present paper presents a generic procedure for stress analysis of prismatic core graphite components using graphite reflector as an example. The procedure is demonstrated through commercially available ABAQUS finite element software using the option of user material subroutine (UMAT). This paper considers General Atomics Gas Turbine-Modular Helium Reactor (GT-MHR) as a bench mark design to perform the time integrated stress analysis of a typical reflector brick considering realistic geometry, flux distribution and realistic irradiation material properties of transversely isotropic H-451 grade graphite. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Mohanty, Subhasish; Majumdar, Saurindranath] Argonne Natl Lab, Argonne, IL 60439 USA.
[Srinivasan, Makuteswara] US Nucl Regulatory Commiss, Washington, DC 20555 USA.
RP Mohanty, S (reprint author), Argonne Natl Lab, South Cass Ave, Argonne, IL 60439 USA.
EM smohanty@anl.gov
FU U.S. Nuclear Regulatory Commission (U.S. NRC) [V6218]
FX The work was supported by the U.S. Nuclear Regulatory Commission (U.S.
NRC) under contract NRC Job Code V6218 during FY2011. The views
expressed in this paper are not necessarily those of the U.S. Nuclear
Regulatory Commission.
NR 17
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PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0029-5493
J9 NUCL ENG DES
JI Nucl. Eng. Des.
PD JUL
PY 2013
VL 260
BP 145
EP 154
DI 10.1016/j.nucengdes.2013.03.003
PG 10
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 154BF
UT WOS:000319645800013
ER
PT J
AU Meng, WZ
AF Meng, Wuzheng
TI Coil-dominated combined function magnet design
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Magnet; Combined function; Complex potential; Accelerator magnet
AB Most coil-dominated combined function magnets are built by stacking multipole coils around the beam aperture, which result in unnecessary cancellations of currents. This article suggests that conductor positions can be computed analytically based upon the combined potentials, so that significant ampere-turns can be reduced. The two dimensional complex potential theory is the base of this method. Examples are demonstrated. Detailed formulas are laid out and ready for various applications. (c) 2013 Elsevier B.V. All rights reserved.
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Meng, WZ (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM meng@bnl.gov
NR 13
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U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUL 1
PY 2013
VL 715
BP 39
EP 47
DI 10.1016/j.nima.2013.02.033
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148NS
UT WOS:000319252300005
ER
PT J
AU Smith, MB
McClish, M
Achtzehn, T
Andrews, HR
Baginski, MJ
Best, DJ
Budden, BS
Clifford, ETH
Dallmann, NA
Dathy, C
Frank, JM
Graham, SA
Ing, H
Stonehill, LC
AF Smith, M. B.
McClish, M.
Achtzehn, T.
Andrews, H. R.
Baginski, M. J.
Best, D. J.
Budden, B. S.
Clifford, E. T. H.
Dallmann, N. A.
Dathy, C.
Frank, J. M.
Graham, S. A.
Ing, H.
Stonehill, L. C.
TI Assessment of photon detectors for a handheld gamma-ray and neutron
spectrometer using Cs2LiYCl6:Ce (CLYC) scintillator
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Cs2LiYCl6; Radiation detectors; Scintillators; Photon detectors
ID SPECTROSCOPY; CRYSTALS; READOUT; PURE
AB The coupling of Cs2LiYCl6:Ce (CLYC) scintillator to silicon photon converters has been evaluated with the goal of investigating replacements for the traditional photomultiplier tube (PMT) in small handheld spectrometers. Energy spectra produced under irradiation by a range of gamma-ray and neutron sources were collected with CLYC mounted to several avalanche photodiodes, PIN photodiodes, and silicon photomultipliers. The performance for both gamma rays and neutrons was compared to that obtained by coupling CLYC to PMTs. None of the silicon devices evaluated provide comparable performance to that of a PMT with CLYC. This is attributed to the photon-detection efficiency of the silicon detectors over the wavelength range of CLYC emissions, as well as the noise characteristics of the devices. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Smith, M. B.; Achtzehn, T.; Andrews, H. R.; Clifford, E. T. H.; Graham, S. A.; Ing, H.] Bubble Technol Ind, Chalk River, ON K0J 1J0, Canada.
[McClish, M.] Radiat Monitoring Devices, Watertown, MA 02472 USA.
[Baginski, M. J.; Best, D. J.] SCI Technol Inc, Huntsville, AL 35803 USA.
[Budden, B. S.; Dallmann, N. A.; Stonehill, L. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Dathy, C.; Frank, J. M.] St Gobain Crystals, Hiram, OH 44234 USA.
RP Smith, MB (reprint author), Bubble Technol Ind, POB 100, Chalk River, ON K0J 1J0, Canada.
EM smithm@bubbletech.ca
OI Smith, Martin/0000-0003-0834-1574
FU US Department of Homeland Security, Domestic Nuclear Detection Office
[HSHQDC-10-C-00178]
FX This work has been supported by the US Department of Homeland Security,
Domestic Nuclear Detection Office, under competitively awarded Contract
HSHQDC-10-C-00178. This support does not constitute an express or
implied endorsement on the part of the Government.
NR 15
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Z9 3
U1 2
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUL 1
PY 2013
VL 715
BP 92
EP 97
DI 10.1016/j.nima.2013.03.023
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148NS
UT WOS:000319252300012
ER
PT J
AU Mitchell, CE
Qiang, J
Ryne, RD
AF Mitchell, Chad E.
Qiang, Ji
Ryne, Robert D.
TI A fast method for computing 1-D wakefields due to coherent synchrotron
radiation
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Coherent synchrotron radiation; Light source simulation; Green function
AB A method for computing the free-space longitudinal wakefield due to coherent synchrotron radiation (CSR) in a one-dimensional model is developed using a fast integrated Green function approach. This approach accurately captures the short-range behavior of the CSR interaction and does not require the numerical differentiation of a noisy longitudinal charge density. The transient wakefields that occur near bend entry and exit are included. This method can also be generalized to include the effect of upstream radiation that propagates through multiple lattice elements before interacting with the bunch. Published by Elsevier B.V.
C1 [Mitchell, Chad E.; Qiang, Ji; Ryne, Robert D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Mitchell, CE (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM ChadMitchell@lbl.gov
FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work is supported by the Office of Science of the U.S. Department
of Energy under Contract no. DE-AC02-05CH11231.
NR 18
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Z9 3
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUL 1
PY 2013
VL 715
BP 119
EP 125
DI 10.1016/j.nima.2013.03.013
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148NS
UT WOS:000319252300016
ER
PT J
AU Khan, MI
Aydemir, K
Siddiqui, MRH
Alwarthan, AA
Kaduk, JA
Marshall, CL
AF Khan, M. Ishaque
Aydemir, Kadir
Siddiqui, M. Rafiq H.
Alwarthan, Abdulrahman A.
Kaduk, James A.
Marshall, Christopher L.
TI Effect of gamma-ray irradiation on the properties of nanostructured
oxovanadate based oxidative dehydrogenation catalysts
SO RADIATION PHYSICS AND CHEMISTRY
LA English
DT Article
DE Oxidative dehydrogenation; Catalysis; Propylene; Framework-materials;
Polyoxovanadates; gamma-Ray irradiation
ID OXIDE CLUSTERS; MIXED OXIDES; PROPANE; TRANSITION; ADDITIVES; RADIATION;
ALUMINA; H2O; CO; CL
AB Effect of varying doses of gamma-ray irradiation on the catalytic oxidative dehydrogenation properties of a nanostructured oxovanadate based material is described for the first time. gamma-ray irradiation enhanced catalysts' selectivity to propylene during the oxidative dehydrogenation of propane. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Khan, M. Ishaque; Aydemir, Kadir; Kaduk, James A.] IIT, Dept Biol & Chem Sci, Chicago, IL 60616 USA.
[Siddiqui, M. Rafiq H.; Alwarthan, Abdulrahman A.] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia.
[Marshall, Christopher L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Khan, MI (reprint author), IIT, Dept Biol & Chem Sci, 3101 S Dearborn St,Life Sci Bldg,Room 178, Chicago, IL 60616 USA.
EM khan@iit.edu
RI Siddiqui, M Rafiq/E-9030-2010; Marshall, Christopher/D-1493-2015
OI Siddiqui, M Rafiq/0000-0002-4703-0333; Marshall,
Christopher/0000-0002-1285-7648
NR 28
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U1 1
U2 18
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0969-806X
J9 RADIAT PHYS CHEM
JI Radiat. Phys. Chem.
PD JUL
PY 2013
VL 88
BP 56
EP 59
DI 10.1016/j.radphyschem.2013.02.040
PG 4
WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic,
Molecular & Chemical
SC Chemistry; Nuclear Science & Technology; Physics
GA 152PS
UT WOS:000319544200010
ER
PT J
AU Saili, KS
Tilton, SC
Waters, KM
Tanguay, RL
AF Saili, Katerine S.
Tilton, Susan C.
Waters, Katrina M.
Tanguay, Robert L.
TI Global gene expression analysis reveals pathway differences between
teratogenic and non-teratogenic exposure concentrations of bisphenol A
and 17 beta-estradiol in embryonic zebrafish
SO REPRODUCTIVE TOXICOLOGY
LA English
DT Article
DE Bisphenol A; 17 beta-Estradiol; Microarray; Zebrafish; Prothrombin; CREB
ID BREAST-CANCER CELLS; ESTROGEN-RECEPTOR; ENDOCRINE DISRUPTOR; WIDESPREAD
EXPOSURE; ARYL-HYDROCARBON; DATA-MANAGEMENT; MESSENGER-RNA; DANIO-RERIO;
ACTIVATION; CREB
AB Transient developmental exposure to 0.1 mu M bisphenol A (BPA) results in larval zebrafish hyperactivity and learning impairments in the adult, while exposure to 80 mu M BPA results in teratogenic responses, including craniofacial abnormalities and edema. The mode of action underlying these effects is unclear. We used global gene expression analysis to identify candidate genes and signaling pathways that mediate BPA's developmental toxicity in zebrafish. Exposure concentrations were selected and anchored to the positive control, 17 beta-estradiol (E2), based on previously determined behavioral or teratogenic phenotypes. Functional analysis of differentially expressed genes revealed distinct expression profiles at 24 h post fertilization for 0.1 mu M versus 80 mu M BPA and 0.1 mu M versus 15 mu M E2 exposure, identification of prothrombin activation as a top canonical pathway impacted by both 0.1 mu M BPA and 0.1 mu M E2 exposure, and suppressed expression of several genes involved in nervous system development and function following 0.1 mu M BPA exposure. (c) 2013 Elsevier Inc. All rights reserved.
C1 [Saili, Katerine S.; Tanguay, Robert L.] Oregon State Univ, Environm Hlth Sci Ctr, Dept Environm & Mol Toxicol, Corvallis, OR 97331 USA.
[Tilton, Susan C.; Waters, Katrina M.] Pacific NW Natl Lab, Computat Biol & Bioinformat Grp, Richland, WA 99352 USA.
RP Tanguay, RL (reprint author), Oregon State Univ, Dept Environm & Mol Toxicol, 28645 East Hwy 34, Corvallis, OR 97333 USA.
EM Robert.Tanguay@oregonstate.edu
FU NIH [T32 ES7060, P30 ES000210, R21 ES018970]; United States
Environmental Protection Agency (US EPA) Science to Achieve Results
(STAR) Graduate Fellowship (KSS); DOE [DE-AC05-76RLO1830]
FX We thank Margaret Corvi for sample collection assistance; Jane La Du for
imaging assistance; Eric Johnson, Can Buchner, Carrie Barton, and Greg
Gonnerman for providing fish husbandry; and Siba Das, Sean Bugel, and
Fred Tilton for critical review of the manuscript. This work was
supported by NIH Grants T32 ES7060, P30 ES000210, and R21 ES018970, and
a United States Environmental Protection Agency (US EPA) Science to
Achieve Results (STAR) Graduate Fellowship (KSS). The Pacific Northwest
National Laboratory is a multi-program national laboratory operated by
Battelle Memorial Institute for the DOE under contract number
DE-AC05-76RLO1830. The funding sources were not involved in any part of
the design, execution, analysis, or publication of this study. The US
EPA has not officially endorsed this publication and the views expressed
herein do not necessarily reflect the views of the US EPA.
NR 43
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0890-6238
J9 REPROD TOXICOL
JI Reprod. Toxicol.
PD JUL
PY 2013
VL 38
BP 89
EP 101
DI 10.1016/j.reprotox.2013.03.009
PG 13
WC Reproductive Biology; Toxicology
SC Reproductive Biology; Toxicology
GA 152MG
UT WOS:000319535200010
PM 23557687
ER
PT J
AU Goodrich, A
Hacke, P
Wang, Q
Sopori, B
Margolis, R
James, TL
Woodhouse, M
AF Goodrich, Alan
Hacke, Peter
Wang, Qi
Sopori, Bhushan
Margolis, Robert
James, Ted L.
Woodhouse, Michael
TI A wafer-based monocrystalline silicon photovoltaics road map: Utilizing
known technology improvement opportunities for further reductions in
manufacturing costs
SO SOLAR ENERGY MATERIALS AND SOLAR CELLS
LA English
DT Article
DE Crystalline silicon; Photovoltaics; Solar energy; Economics
ID SURFACE RECOMBINATION VELOCITY; MINORITY-CARRIER LIFETIMES; SOLAR-CELL
EFFICIENCY; CRYSTALLINE SILICON; P-TYPE; CZOCHRALSKI SILICON;
MULTICRYSTALLINE SILICON; SATURATION CURRENT; SI; DEGRADATION
AB As an initial investigation into the current and potential economics of one of today's most widely deployed photovoltaic technologies, we have engaged in a detailed analysis of manufacturing costs for each step within the wafer-based monocrystalline silicon (c-Si) PV module supply chain. At each step we find several pathways that could lead to further reductions in manufacturing costs. After aggregating the performance and cost considerations for a series of known technical improvement opportunities, we project a pathway for commercial-production c-Si modules to have typical sunlight power conversion efficiencies of 19-23%, and we calculate that they might be sustainably sold at ex-factory gate prices of $0.60-$0.70 per peak Watt (DC power, current U.S. dollars).
This may not be the lower bound to the cost curve for c-Si, however, because the roadmap described in this paper is constrained by the boundary conditions set by the wire sawing of wafers and their incorporation into manufacturing equipment that is currently being developed for commercial-scale production. Within these boundary conditions, we find that the benefit of reducing the wafer thickness from today's standard 180 mu m to the handling limit of 80 mu m could be around $0.05 per peak Watt (W-p), when the calculation is run at minimum sustainable polysilicon prices (which we calculate to be around $23/kg). At that minimum sustainable polysilicon price, we also calculate that the benefit of completely eliminating or completely recycling kerf loss could be up to $0.08/W-p.
These downward adjustments to the long run wafer price are used within the cost projections for three advanced cell architectures beyond today's standard c-Si solar cell. Presumably, the higher efficiency cells that are profiled must be built upon a foundation of higher quality starting wafers. The prevailing conventional wisdom is that this should add cost at the ingot and wafering step either due to lower production yields when having to sell wafers that are doped with an alternative element other than the standard choice of boron, or in additional capital equipment costs associated with removing problematic boron-oxygen pairs. However, from our survey it appears that there does not necessarily need to be an assumption of a higher wafer price if cell manufacturers should wish to use n-type wafers derived from the phosphorus dopant. And as for making p-type wafers with the traditional boron dopant, the potential price premium for higher lifetimes via the magnetic Czochralski approach is calculated to be very small, and can ostensibly be offset by the higher expected cell efficiencies that would result from using the higher quality wafers. With this final consideration, the projected minimum sustainable price requirements for three advanced c-Si solar cells are incorporated into a final bill of materials for a polysilicon-to-module manufacturing facility located within the United States. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Goodrich, Alan; Hacke, Peter; Wang, Qi; Sopori, Bhushan; Margolis, Robert; James, Ted L.; Woodhouse, Michael] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Goodrich, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Alan.Goodrich@nrel.gov; Michael.Woodhouse@nrel.gov
NR 167
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U1 14
U2 123
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-0248
J9 SOL ENERG MAT SOL C
JI Sol. Energy Mater. Sol. Cells
PD JUL
PY 2013
VL 114
BP 110
EP 135
DI 10.1016/j.solmat.2013.01.030
PG 26
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA 151UW
UT WOS:000319486700016
ER
PT J
AU Laghumavarapu, RB
Liang, BLL
Bittner, ZS
Navruz, TS
Hubbard, SM
Norman, A
Huffaker, DL
AF Laghumavarapu, Ramesh B.
Liang, Baolai L.
Bittner, Zachary S.
Navruz, Tugba S.
Hubbard, Seth M.
Norman, Andrew
Huffaker, Diana L.
TI GaSb/InGaAs quantum dot-well hybrid structure active regions in solar
cells
SO SOLAR ENERGY MATERIALS AND SOLAR CELLS
LA English
DT Article
DE Quantum dot (QD); Quantum well (QW); Intermediate band solar cells
(IBSC); Gallium antimonide (GaSb); Photovoltaics (PV); Quantum dot-well
(QDW) solar cells
ID EFFICIENCY; BEAM
AB GaSb/InGaAs quantum dot-well (QDW) hybrid active regions with type-II band alignment are explored for increasing the infrared absorption in GaAs solar cells. Analyzed GaAs p-i-n structures comprise five layers of either GaSb quantum dot (QD), InGaAs quantum well (QW) or GaSb/InGaAs QDW layers in the I-region. It is found that the QDW solar cells outperform the QW and QD solar cells beyond GaAs band edge. In QDW solar cells an increase in efficiency is observed over QD solar cells due to additional QW absorption. An analysis of bulk response degradation in QDW solar cell is also presented. Improved photoresponse in QDW solar cells over QW and QD solar cells proves the potential for QDW hybrid structures in achieving high efficiency intermediate band solar cells. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Laghumavarapu, Ramesh B.; Huffaker, Diana L.] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA.
[Liang, Baolai L.; Huffaker, Diana L.] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA.
[Bittner, Zachary S.; Hubbard, Seth M.] Rochester Inst Technol, Dept Phys, Rochester, NY 14623 USA.
[Navruz, Tugba S.] Gazi Univ, Fac Engn & Architecture, Dept Elect & Elect Engn, TR-06570 Ankara, Turkey.
[Norman, Andrew] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Laghumavarapu, RB (reprint author), Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA.
EM laghu77@gmail.com
RI Norman, Andrew/F-1859-2010
OI Norman, Andrew/0000-0001-6368-521X
FU US Department of Energy [DE-EE0005325]; Air Force Office of Scientific
Research [AFINASSB01]; Department of Defense [NSSEFF N00244-09-1-0091]
FX The authors greatly acknowledge the financial support of this research
from US Department of Energy (through Grant number DE-EE0005325), Air
Force Office of Scientific Research (through Grant number AFINASSB01)
and Department of Defense (NSSEFF N00244-09-1-0091). Authors would like
to thank Charles J. Reyner for useful discussions during the preparation
of this manuscript. The authors gratefully acknowledge the use of the
SPM facility at the Nano and Pico Characterization Laboratory at the
California NanoSystems Institute.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-0248
EI 1879-3398
J9 SOL ENERG MAT SOL C
JI Sol. Energy Mater. Sol. Cells
PD JUL
PY 2013
VL 114
BP 165
EP 171
DI 10.1016/j.solmat.2013.02.027
PG 7
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA 151UW
UT WOS:000319486700022
ER
PT J
AU Greenhawt, M
Weiss, C
Conte, ML
Doucet, M
Engler, A
Camargo, CA
AF Greenhawt, Matthew
Weiss, Christopher
Conte, Marisa L.
Doucet, Marlie
Engler, Amy
Camargo, Carlos A., Jr.
TI Racial and Ethnic Disparity in Food Allergy in the United States: A
Systematic Review
SO JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE
LA English
DT Review
DE Food allergy; Food sensitization; 95% Predictive Decision Points; Serum
IgE; Race; Ethnicity; Children; Prevalence; Anaphylaxis; Disparity;
Epinephrine; Black; African American
AB BACKGROUND: The prevalence of food allergy is rising among US children. Little is known about racial/ethnic disparities in food allergy.
OBJECTIVE: We performed a systematic literature review to understand racial/ethnic disparities in food allergy in the United States.
METHODS: We searched PubMed/MEDLINE, Embase, and Scopus for original data about racial/ethnic disparities in the diagnosis, prevalence, treatment, or clinical course of food allergy or sensitization, with a particular focus on black (African American) race. Articles were analyzed by study methodology, racial/ethnic composition, food allergy definition, outcomes, summary statistic used, and covariate adjustment.
RESULTS: Twenty of 645 identified articles met inclusion criteria. The studies used multiple differing criteria to define food allergy, including self-report, sensitization assessed by serum food-specific IgE to selected foods without corroborating history, discharge codes, clinic chart review, and event-reporting databases. None used oral food challenge. In 12 studies, black persons (primarily children) had significantly increased adjusted odds of food sensitization or significantly higher proportion or odds of food allergy by self-report, discharge codes, or clinic-based chart review than white children. Major differences in study methodology and reporting precluded calculation of a pooled estimate of effect.
CONCLUSION: Sparse and methodologically limited data exist about racial/ethnic disparity in food allergy in the United States. Available data lack a common definition for food allergy and use indirect measures of allergy, not food challenge. Although data suggest an increased risk of food sensitization, self-reported allergy, or clinic-based diagnosis of food allergy among black children, no definitive racial/ethnic disparity could be found among currently available studies. (C) 2013 American Academy of Allergy, Asthma & Immunology
C1 [Greenhawt, Matthew] Univ Michigan, Sch Med, Dept Internal Med, Div Allergy & Clin Immunol, Ann Arbor, MI USA.
[Greenhawt, Matthew] Univ Michigan Hlth Syst, Ann Arbor, MI 48106 USA.
[Weiss, Christopher] Global Food Protect Inst, Battle Creek, MI USA.
[Conte, Marisa L.] Univ Michigan, Taubman Hlth Sci Lib, Ann Arbor, MI 48109 USA.
[Doucet, Marlie] Ctr Dis Control & Prevent, Oak Ridge Inst Sci & Educ Fellow, Div Adolescent, Atlanta, GA USA.
[Doucet, Marlie] Ctr Dis Control & Prevent, Sch Hlth, Atlanta, GA USA.
[Engler, Amy] Stanford Univ, Dept Human Biol, Palo Alto, CA 94304 USA.
[Camargo, Carlos A., Jr.] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Dept Emergency Med, Boston, MA USA.
[Camargo, Carlos A., Jr.] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Dept Med,Div Rheumatol Allergy & Immunol, Boston, MA USA.
RP Greenhawt, M (reprint author), Univ Michigan Hlth Syst, Div Allergy & Clin Immunol, 24 Frank Lloyd Wright Dr Lobby H-2100,Box 442, Ann Arbor, MI 48106 USA.
EM mgreenha@med.umich.edu
OI Greenhawt, Matthew/0000-0002-2365-9372; Conte,
Marisa/0000-0001-7377-163X
FU Centers for Disease Control and Prevention [214-2010-M-37396]; Food
Allergy Research and Education; Michigan Institute for Clinical and
Health Research; NIH [UL1RR024986]
FX Supported by the Centers for Disease Control and Prevention contract
214-2010-M-37396 with the Food Allergy & Anaphylaxis Network (now the
Food Allergy Research and Education) and the Michigan Institute for
Clinical and Health Research, NIH UL1RR024986 (M.L.C. and M.G.). The
findings and conclusions in this paper are those of the authors and do
not necessarily represent the official positions of the Centers for
Disease Control and Prevention (CDC) or Food Allergy Research and
Education.
NR 42
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U1 3
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 2213-2198
EI 2213-2201
J9 J ALLER CL IMM-PRACT
JI J. Allergy Clin. Immunol.-Pract.
PD JUL-AUG
PY 2013
VL 1
IS 4
BP 378
EP 386
DI 10.1016/j.jaip.2013.04.009
PG 9
WC Allergy; Immunology
SC Allergy; Immunology
GA V38WW
UT WOS:000209374500009
PM 24565543
ER
PT J
AU Guo, HW
Ward, TZ
AF Guo, Hangwen
Ward, Thomas Z.
TI Fabrication of Spatially Confined Complex Oxides
SO JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
LA English
DT Article
DE Materials Science; Issue 77; Physics; Chemistry; Chemical Engineering;
Mechanical Engineering; Nanotechnology; electrical transport properties
in solids; condensed matter physics; thin films (theory; deposition and
growth); conductivity (solid state); Pulsed laser deposition; oxides
thin films; photolithography; wire-bonding; thin film; etching;
fabrication; nanofabrication
AB Complex materials such as high Tc superconductors, multiferroics, and colossal magnetoresistors have electronic and magnetic properties that arise from the inherent strong electron correlations that reside within them. These materials can also possess electronic phase separation in which regions of vastly different resistive and magnetic behavior can coexist within a single crystal alloy material. By reducing the scale of these materials to length scales at and below the inherent size of the electronic domains, novel behaviors can be exposed. Because of this and the fact that spin-charge-lattice-orbital order parameters each involve correlation lengths, spatially reducing these materials for transport measurements is a critical step in understanding the fundamental physics that drives complex behaviors. These materials also offer great potential to become the next generation of electronic devices (1-3). Thus, the fabrication of low dimensional nano-or micro-structures is extremely important to achieve new functionality. This involves multiple controllable processes from high quality thin film growth to accurate electronic property characterization. Here, we present fabrication protocols of high quality microstructures for complex oxide manganite devices. Detailed descriptions and required equipment of thin film growth, photo-lithography, and wire-bonding are presented.
C1 [Guo, Hangwen; Ward, Thomas Z.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Guo, Hangwen] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RP Ward, TZ (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM wardtz@ornl.gov
RI Ward, Thomas/I-6636-2016
OI Ward, Thomas/0000-0002-1027-9186
FU US DOE, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division
FX This effort was wholly supported by the US DOE, Office of Basic Energy
Sciences, Materials Sciences and Engineering Division.
NR 17
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Z9 0
U1 1
U2 4
PU JOURNAL OF VISUALIZED EXPERIMENTS
PI CAMBRIDGE
PA 1 ALEWIFE CENTER, STE 200, CAMBRIDGE, MA 02140 USA
SN 1940-087X
J9 JOVE-J VIS EXP
JI J. Vis. Exp.
PD JUL
PY 2013
IS 77
AR UNSP e50573
DI 10.3791/50573
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA V36RG
UT WOS:000209227900048
PM 23851706
ER
PT J
AU Martin, JE
AF Martin, James E.
TI Field-Structured Polymer Composites
SO MACROMOLECULAR SYMPOSIA
LA English
DT Proceedings Paper
CT Polymer Networks Conference (PNG)
CY AUG 12-16, 2012
CL WY
DE composites; magnetic permeability; thermal conductivity
ID BIAXIAL FIELD; SIMULATION
AB The use of multiaxial magnetic fields to create particle composites with controlled structures and properties is discussed. These field-structured composites can have greatly enhanced isotropic or anisotropic properties, and have applications to sensing, actuation, and thermal transport. In this article the synthesis of these materials is discussed, and a variety of composite structures are shown. The magnetic permeability and thermal conductivity are given as specific examples of the utility of multiaxial field structuring.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Martin, JE (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM jmartin@sandia.gov
NR 16
TC 0
Z9 0
U1 0
U2 4
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1022-1360
EI 1521-3900
J9 MACROMOL SYMP
JI Macromol. Symp.
PD JUL
PY 2013
VL 329
IS 1
BP 162
EP 172
DI 10.1002/masy.201200108
PG 11
WC Polymer Science
SC Polymer Science
GA AG5BR
UT WOS:000335434600020
ER
PT J
AU Kim, T
Vazquez, H
Hybertsen, MS
Venkataraman, L
AF Kim, Taekyeong
Vazquez, Hector
Hybertsen, Mark S.
Venkataraman, Latha
TI Conductance of Molecular Junctions Formed with Silver Electrodes
SO NANO LETTERS
LA English
DT Article
DE Single-molecule electronics; Ag-molecular junctions; density functional
theory; oligophenyls; tunneling decay
ID METAL WORK FUNCTION; SINGLE; RESISTANCE; CIRCUITS; CONTACTS; NANOWIRE;
AU; AG
AB We compare the conductance of a series of amine-terminated oligophenyl and alkane molecular junctions formed with Ag and Au electrodes using the scanning tunneling microscope based break-junction technique. For these molecules that conduct through the highest occupied molecular orbital, junctions formed with Au electrodes are more conductive than those formed with Ag electrodes, consistent with the lower work function for Ag. The measured conductance decays exponentially with molecular backbone length with a decay constant that is essentially the same for Ag and Au electrodes. However, the formation and evolution of molecular junctions upon elongation are very different for these two metals. Specifically, junctions formed with Ag electrodes sustain significantly longer elongation when compared with Au due to a difference in the initial gap opened up when the metal point-contact is broken. Using this observation and density functional theory calculations of junction structure and conductance we explain the trends observed in the single molecule junction conductance. Our work thus opens a new path to the conductance measurements of a single molecule junction in Ag electrodes.
C1 [Kim, Taekyeong; Vazquez, Hector; Venkataraman, Latha] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA.
[Hybertsen, Mark S.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Hybertsen, MS (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM mhyberts@bnl.gov; lv2117@columbia.edu
RI Vazquez, Hector/G-5788-2014;
OI Vazquez, Hector/0000-0002-3865-9922; Hybertsen, Mark
S/0000-0003-3596-9754; Venkataraman, Latha/0000-0002-6957-6089
FU NSF [DMR-1122594]; U.S. Department of Energy, Office of Basic Energy
Sciences [DE-AC02-98CH10886]; Nanoscience and Engineering center by the
New York State Office of Science, Technology, and Academic Research
(NYSTAR); Packard Foundation
FX This work was supported primarily by the NSF under award number
DMR-1122594. Part of this work was carried out at the Center for
Functional Nanomaterials, Brookhaven National Laboratory, which is
supported by the U.S. Department of Energy, Office of Basic Energy
Sciences, under contract no. DE-AC02-98CH10886. H.V. was supported
through the Nanoscience and Engineering center by the New York State
Office of Science, Technology, and Academic Research (NYSTAR). L.V.
thanks the Packard Foundation for support.
NR 32
TC 41
Z9 41
U1 5
U2 30
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD JUL
PY 2013
VL 13
IS 7
BP 3358
EP 3364
DI 10.1021/nl401654s
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 184IW
UT WOS:000321884300058
PM 23731268
ER
PT J
AU Jordan, NN
Leamer, NK
Nowak, G
Gaydos, JC
AF Jordan, N. N.
Leamer, N. K.
Nowak, G.
Gaydos, J. C.
TI ESTIMATING CHLAMYDIA AND GONORRHOEA BURDEN WITHIN THE US ARMY - A REVIEW
OF PASSIVE SURVEILLANCE SYSTEMS TO IDENTIFY INCIDENT INFECTIONS
SO SEXUALLY TRANSMITTED INFECTIONS
LA English
DT Meeting Abstract
C1 [Jordan, N. N.; Leamer, N. K.] US Army Inst Publ Hlth, Aberdeen Proving Ground, MD USA.
[Leamer, N. K.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
[Nowak, G.] Navy Marine Corps Public Hlth Ctr, Norfolk, VA USA.
[Gaydos, J. C.] Armed Forces Hlth Surveillance Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1368-4973
EI 1472-3263
J9 SEX TRANSM INFECT
JI Sex. Transm. Infect.
PD JUL
PY 2013
VL 89
SU 1
MA P3.316
BP A248
EP A248
DI 10.1136/sextrans-2013-051184.0770
PG 1
WC Infectious Diseases
SC Infectious Diseases
GA V40VR
UT WOS:000209506600162
ER
PT J
AU Tsai, AY
Dueger, E
Macalino, GE
Montano, SM
Mbuchi, M
Puplampu, N
McClelland, RS
Sanchez, JL
AF Tsai, A. Y.
Dueger, E.
Macalino, G. E.
Montano, S. M.
Mbuchi, M.
Puplampu, N.
McClelland, R. S.
Sanchez, J. L.
TI NEISSERIA GONORRHOEAE (GC) RESISTANCE SURVEILLANCE IN SELECTED
POPULATIONS OF FIVE COUNTRIES
SO SEXUALLY TRANSMITTED INFECTIONS
LA English
DT Meeting Abstract
C1 [Tsai, A. Y.; Sanchez, J. L.] Armed Forces Hlth Surveillance Ctr, Silver Spring, MD USA.
[Tsai, A. Y.] US Army Publ Hlth Command, Postgrad Res Participat Program, Oak Ridge Inst Sci & Educ, Aberdeen Proving Ground, MD USA.
[Dueger, E.] US Naval Med Res Unit 3, Cairo, Egypt.
[Dueger, E.] US Ctrs Dis Control & Prevent CDC, Global Dis Detect Branch, Atlanta, GA USA.
[Macalino, G. E.] Uniformed Serv Univ Hlth Sci, IDCRP, Bethesda, MD 20814 USA.
[Montano, S. M.] US Naval Med Res Unit 6, Lima, Peru.
[Mbuchi, M.] US Army Med Res Unit Kenya, Nairobi, Kenya.
[Puplampu, N.] US Naval Med Res Unit 3 Dttachment, Accra, Ghana.
[McClelland, R. S.] Univ Washington, Seattle, WA 98195 USA.
[Sanchez, J. L.] Henry M Jackson Fdn Adv Mil Med Inc, Bethesda, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1368-4973
EI 1472-3263
J9 SEX TRANSM INFECT
JI Sex. Transm. Infect.
PD JUL
PY 2013
VL 89
SU 1
MA P3.276
BP A235
EP A235
DI 10.1136/sextrans-2013-051184.0732
PG 1
WC Infectious Diseases
SC Infectious Diseases
GA V40VR
UT WOS:000209506600124
ER
PT J
AU Williams, R
McKane, A
AF Williams, Robert
McKane, Aimee
TI Global overview-the systems approach to energy efficiency in industry
SO WILEY INTERDISCIPLINARY REVIEWS-ENERGY AND ENVIRONMENT
LA English
DT Article
AB The energy systems that support industrial processes can be found in all types of industry and include compressed air, pumping, and fan systems (collectively known as motor systems), steam systems, and process heating systems. They are integral to the operation of industrial facilities by providing the essential conversion of energy into useful work, energized fluids or heat required for production processes. Improving the efficiency of industrial energy systems does not require major investment in new processes or equipment. Barriers to systems optimization are often behavioral rather than financial, with system inefficiencies frequently attributable to lack of knowledge. Measurement of the efficiency of motor and steam systems is not done and projects capable of improving systems efficiency do not attract the attention of company managers. In developed countries, where energy efficiency is now an important component of climate policy, measures capable of driving systems level improvements, have been introduced, but, to date, their impacts have been limited. The challenge for policy makers worldwide is to bring about a lasting change in industrial management behavior that recognizes the benefits of systems optimization. The International Standards Organization 50001 Energy Management Standard will afford industrial managers with an opportunity to address systems optimization within the organizing framework of an energy management system standard, thus supporting continuous improvement in energy performance. (C) 2013 John Wiley & Sons, Ltd.
C1 [McKane, Aimee] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM williams.robert1020@yahoo.com
NR 15
TC 1
Z9 1
U1 1
U2 6
PU WILEY PERIODICALS, INC
PI SAN FRANCISCO
PA ONE MONTGOMERY ST, SUITE 1200, SAN FRANCISCO, CA 94104 USA
SN 2041-8396
EI 2041-840X
J9 WIRES ENERGY ENVIRON
JI Wiley Interdiscip. Rev. Energy Environ.
PD JUL-AUG
PY 2013
VL 2
IS 4
BP 363
EP 373
DI 10.1002/wene.72
PG 11
WC Energy & Fuels
SC Energy & Fuels
GA AQ9WJ
UT WOS:000343208400001
ER
PT J
AU Eisenlohr, P
Diehl, M
Lebensohn, RA
Roters, F
AF Eisenlohr, P.
Diehl, M.
Lebensohn, R. A.
Roters, F.
TI A spectral method solution to crystal elasto-viscoplasticity at finite
strains
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Microstructures; Crystal plasticity; Numerical algorithms; Finite
elements; High-resolution periodic volume element
ID FAST FOURIER-TRANSFORMS; POLYCRYSTAL PLASTICITY; NONLINEAR COMPOSITES;
NUMERICAL-METHOD; TRANSIENT CREEP; COLUMNAR ICE; DEFORMATION; BEHAVIOR;
STRESS; FIELDS
AB A significant improvement over existing models for the prediction of the macromechanical response of structural materials can be achieved by means of a more refined treatment of the underlying micromechanics. For this, achieving the highest possible spatial resolution is advantageous, in order to capture the intricate details of complex microstructures. Spectral methods, as an efficient alternative to the widely used finite element method (FEM), have been established during the last decade and their applicability to the case of polycrystalline materials has already been demonstrated. However, until now, the existing implementations were limited to infinitesimal strain and phenomenological crystal elasto-viscoplasticity. This work presents the extension of the existing spectral formulation for polycrystals to the case of finite strains, not limited to a particular constitutive law, by considering a general material model implementation. By interfacing the exact same material model to both, the new spectral implementation as well as a FEM-based solver, a direct comparison of both numerical strategies is possible. Carrying out this comparison, and using a phenomenological constitutive law as example, we demonstrate that the spectral method solution converges much faster with mesh/grid resolution, fulfills stress equilibrium and strain compatibility much better, and is able to solve the micromechanical problem for, e.g., a 256(3) grid in comparable times as required by a 64(3) mesh of linear finite elements. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Eisenlohr, P.; Diehl, M.; Roters, F.] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany.
[Lebensohn, R. A.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Eisenlohr, P (reprint author), Max Planck Inst Eisenforsch GmbH, Max Planck Str 1, D-40237 Dusseldorf, Germany.
EM p.eisenlohr@mpie.de
RI Lebensohn, Ricardo/A-2494-2008; Eisenlohr, Philip/E-6866-2010; Diehl,
Martin/A-2831-2016
OI Lebensohn, Ricardo/0000-0002-3152-9105; Eisenlohr,
Philip/0000-0002-8220-5995; Diehl, Martin/0000-0002-3738-7363
FU Materials innovation institute M2i [M41.2.10410]; Max Planck Society
FX The authors benefitted from many fruitful discussions with Prof. Bob
Svendsen and Dr. Pratheek Shanthraj. The present work was generously
supported by a Humboldt Research Award and the US DOE Office of Advanced
Scientific Computing Research (ASCR) through the Exascale Co-Design
Center for Materials in Extreme Environments (ExMatEx) (RAL) and in part
carried out under project number M41.2.10410 (MD) in the framework of
the Research Program of the Materials innovation institute M2i
(www.m2i.nl). The code development was performed as part of the
"Computational Mechanics of Polycrystals - CMCPi" initiative,
a joint research group between the Max-Planck-Institut fur
Eisenforschung, Dusseldorf, and the Fraunhofer Institut fur
Werkstoffmechanik, Freiburg. The associated financial support from the
Max Planck Society is gratefully acknowledged.
NR 33
TC 65
Z9 65
U1 6
U2 43
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
J9 INT J PLASTICITY
JI Int. J. Plast.
PD JUL
PY 2013
VL 46
SI SI
BP 37
EP 53
DI 10.1016/j.ijplas.2012.09.012
PG 17
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA 148JI
UT WOS:000319240400003
ER
PT J
AU Kitayama, K
Tome, CN
Rauch, EF
Gracio, JJ
Barlat, F
AF Kitayama, K.
Tome, C. N.
Rauch, E. F.
Gracio, J. J.
Barlat, F.
TI A crystallographic dislocation model for describing hardening of
polycrystals during strain path changes. Application to low carbon
steels
SO INTERNATIONAL JOURNAL OF PLASTICITY
LA English
DT Article
DE Crystallographic dislocation model; Strain hardening; Strain path
change; Low carbon steels
ID WORK-HARDENING/SOFTENING BEHAVIOR; SIMPLE SHEAR; MECHANICAL-BEHAVIOR;
BCC POLYCRYSTALS; SINGLE-CRYSTALS; FCC CRYSTALS; IF STEEL; PLASTICITY;
DEFORMATION; ALUMINUM
AB Polycrystal aggregates subjected to plastic forming exhibit large changes in the yield stress and extended transients in the flow stress following strain path changes. Since these effects are related to the rearrangement of the dislocation structure induced during previous loading, here we propose a crystallographically-based dislocation hardening model for capturing such behavior. The model is implemented in the polycrystal code VPSC and is applied to simulate strain path changes in low carbon steel. The path changes consist of tension followed by shear at different angles with respect to the preload direction, and forward simple shear followed by reverse shear. The results are compared to experimental data and highlight the role that directional dislocation structures induced during preload play during the reload stage. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Kitayama, K.; Gracio, J. J.; Barlat, F.] Univ Aveiro, Dept Mech Engn, Ctr Mech Technol & Automat, P-3810193 Aveiro, Portugal.
[Tome, C. N.] Los Alamos Natl Lab, MST Div, Los Alamos, NM 87545 USA.
[Rauch, E. F.] INPG UJF, Sci & Ingn Mat & Proc CNRS UMR 5266, F-38402 St Martin Dheres, France.
[Barlat, F.] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Mat Mech Lab, Pohang 790784, South Korea.
RP Gracio, JJ (reprint author), Univ Aveiro, Dept Mech Engn, Ctr Mech Technol & Automat, P-3810193 Aveiro, Portugal.
EM jgracio@ua.pt
RI RAUCH, Edgar/C-9852-2011; Research Unit, TEMA/H-9264-2012; Group,
GAME/B-3464-2014; Tome, Carlos/D-5058-2013;
OI Barlat, Frederic/0000-0002-4463-3454; Gracio, Jose/0000-0002-0343-4387
FU US Department of Energy, Office of Basic Energy Science, Division of
Materials Science and Engineering [FWP 06SCPE401DOE-BES]; Portuguese
Foundation of Science and Technology (FCT) [PEst-C/EME/UI0481/2011,
PTDC/EME-PME/116683/2010]
FX CT acknowledges support from US Department of Energy, Office of Basic
Energy Science, Division of Materials Science and Engineering, Project
FWP 06SCPE401DOE-BES. JG, FB and KK, acknowledge support from Portuguese
Foundation of Science and Technology (FCT) projects
PEst-C/EME/UI0481/2011 and PTDC/EME-PME/116683/2010.
NR 41
TC 31
Z9 31
U1 2
U2 33
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0749-6419
J9 INT J PLASTICITY
JI Int. J. Plast.
PD JUL
PY 2013
VL 46
SI SI
BP 54
EP 69
DI 10.1016/j.ijplas.2012.09.004
PG 16
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA 148JI
UT WOS:000319240400004
ER
PT J
AU Heo, Y
Augenbroe, G
Choudhary, R
AF Heo, Yeonsook
Augenbroe, Godfried
Choudhary, Ruchi
TI Quantitative risk management for energy retrofit projects
SO JOURNAL OF BUILDING PERFORMANCE SIMULATION
LA English
DT Article
DE risk analysis; energy efficiency projects; building energy models;
Bayesian calibration; energy service companies
AB This article presents a risk analysis method based on Bayesian calibration of building energy models. The Bayesian approach enables probabilistic outputs from the energy model, which are used to quantify risks associated with investing in energy conservation measures in existing buildings. This article demonstrates the applicability of the proposed methodology to support energy saving contracts in the context of the energy service company industry. A case study illustrates the importance of quantifying relative risks by comparing the probabilistic outputs derived from the Bayesian approach with standard practices endorsed by International Performance Measurement and Verification Protocol and ASHRAE guideline 14.
C1 [Heo, Yeonsook] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
[Augenbroe, Godfried] Georgia Inst Technol, Coll Architecture, Atlanta, GA 30332 USA.
[Choudhary, Ruchi] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
RP Heo, Y (reprint author), Argonne Natl Lab, Decis & Informat Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM yheo@anl.gov
FU Energy Efficient Cities Initiative (EECi) at the University of
Cambridge; NSF-EFRI SEED
FX This study was partly funded by grants from the Energy Efficient Cities
Initiative (EECi) at the University of Cambridge and the NSF-EFRI SEED
grant 'Risk-conscious Design and Retrofit of Buildings for Low Energy'
awarded to the Georgia Institute of Technology.
NR 30
TC 3
Z9 3
U1 1
U2 24
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1940-1493
J9 J BUILD PERFORM SIMU
JI J. Build. Perf. Simul.
PD JUL 1
PY 2013
VL 6
IS 4
SI SI
BP 257
EP 268
DI 10.1080/19401493.2012.706388
PG 12
WC Construction & Building Technology
SC Construction & Building Technology
GA 150FT
UT WOS:000319376300001
ER
PT J
AU Kuprat, AP
Kabilan, S
Carson, JP
Corley, RA
Einstein, DR
AF Kuprat, A. P.
Kabilan, S.
Carson, J. P.
Corley, R. A.
Einstein, D. R.
TI A bidirectional coupling procedure applied to multiscale respiratory
modeling
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Computational fluid dynamics; Multiscale coupling; Pulmonary airflows;
Krylov subspace; Modified Newton-Raphson
ID EXPIRATORY FLOW LIMITATION; PRESSURE-VOLUME CURVES; MECHANICAL
VENTILATION; BRONCHIAL TREE; DYNAMIC-MODEL; HUMAN-LUNG; AIR-FLOW;
SIMULATIONS; POPULATIONS; AIRWAYS
AB In this study, we present a novel multiscale computational framework for efficiently linking multiple lower-dimensional models describing the distal lung mechanics to imaging-based 3D computational fluid dynamics (CFDs) models of the upper pulmonary airways in order to incorporate physiologically appropriate outlet boundary conditions. The framework is an extension of the modified Newton's method with nonlinear Krylov accelerator developed by Carlson and Miller [1], Miller [2] and Scott and Fenves [3]. Our extensions include the retention of subspace information over multiple timesteps, and a special correction at the end of a timestep that allows for corrections to be accepted with verified low residual with as little as a single residual evaluation per timestep on average. In the case of a single residual evaluation per timestep, the method has zero additional computational cost compared to uncoupled or unidirectionally coupled simulations. We expect these enhancements to be generally applicable to other multiscale coupling applications where timestepping occurs. In addition we have developed a "pressure-drop" residual which allows for stable coupling of flows between a 3D incompressible CFD application and another (lower-dimensional) fluid system. We expect this residual to also be useful for coupling non-respiratory incompressible fluid applications, such as multiscale simulations involving blood flow.
The lower-dimensional models that are considered in this study are sets of simple ordinary differential equations (ODEs) representing the compliant mechanics of symmetric human pulmonary airway trees. To validate the method, we compare the predictions of hybrid CFD-ODE models against an ODE-only model of pulmonary airflow in an idealized geometry. Subsequently, we couple multiple sets of ODEs describing the distal lung to an imaging-based human lung geometry. Boundary conditions in these models consist of atmospheric pressure at the mouth and intrapleural pressure applied to the multiple sets of ODEs. In both the simplified geometry and in the imaging-based geometry, the performance of the method was comparable to that of monolithic schemes, in most cases requiring only a single CFD evaluation per time step. Thus, this new accelerator allows us to begin combining pulmonary CFD models with lower-dimensional models of pulmonary mechanics with little computational overhead. Moreover, because the CFD and lower-dimensional models are totally separate, this framework affords great flexibility in terms of the type and breadth of the adopted lower-dimensional model, allowing the biomedical researcher to appropriately focus on model design. (c) 2012 Elsevier Inc. All rights reserved.
C1 [Kuprat, A. P.; Kabilan, S.; Carson, J. P.; Corley, R. A.; Einstein, D. R.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Kuprat, AP (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
EM andrew.kuprat@pnnl.gov; senthil.kabilan@pnnl.gov; james.carson@pnnl.gov;
rick.corley@pnnl.gov; daniel.einstein@pnnl.gov
OI Kuprat, Andrew/0000-0003-4159-918X
FU National Heart and Blood Institute Award [1R01HL073598]; National
Institutes of Health (NIH) Bioengineering Research Partnership Grant
[R01-HL073598]
FX Research funded by the National Heart and Blood Institute Award
1R01HL073598.; We would like to thank Neil Carlson for access to the
original NACCEL FORTRAN subroutine. We would like to thank Professor C.
Keith Miller for the idea of applying a partial NACCEL correction at the
end of a timestep. We also gratefully acknowledge Drs. Robb Glenny and
Sudhaker Pipavath, UW for the human CT images. This work was financially
supported by National Institutes of Health (NIH) Bioengineering Research
Partnership Grant R01-HL073598 (Richard A. Corley, PI).
NR 44
TC 7
Z9 7
U1 0
U2 25
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUL 1
PY 2013
VL 244
BP 148
EP 167
DI 10.1016/j.jcp.2012.10.021
PG 20
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 151JO
UT WOS:000319456900010
ER
PT J
AU Pathak, S
Doherty, RD
Rollett, AD
Michler, J
Wasmer, K
AF Pathak, Siddhartha
Doherty, Roger D.
Rollett, Anthony D.
Michler, Johann
Wasmer, Kilian
TI Caught in the act: Grain-switching and quadrijunction formation in
annealed aluminum
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Grain-switching; Quadrijunction; Metallurgy; Grain growth
ID GROWTH; STABILITY
AB Contrary to current understanding, an apparently stable single-phase quadrijunction, and one lacking any low-energy grain boundary member, has been experimentally observed during grain switching in large (similar to mm) grained pure annealed aluminum. Electropolishing below the quadrijunction revealed a 3-D microstructure characterized by a rapidly shrinking grain with a faceted boundary indicating a significant anisotropy of energy and/or mobility. This unusual occurrence is described in detail in the expectation that a reasonable model for this observation might be found. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Pathak, Siddhartha; Michler, Johann; Wasmer, Kilian] Swiss Fed Lab Mat Sci & Technol, EMPA, CH-3602 Thun, Switzerland.
[Doherty, Roger D.] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[Rollett, Anthony D.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
RP Pathak, S (reprint author), Los Alamos Natl Lab, MPA CINT Ctr Integrated Nanotechnol, POB 1663,MS K771, Los Alamos, NM 87545 USA.
EM pathak@lanl.gov
RI Michler, Johann/B-4672-2010; Rollett, Anthony/A-4096-2012; Wasmer,
Kilian/B-7662-2009
OI Michler, Johann/0000-0001-8860-4068; Rollett,
Anthony/0000-0003-4445-2191; Wasmer, Kilian/0000-0002-3294-3244
FU LANL
FX The authors thank Shraddha Vachhani (Drexel University) and Peter
Ramseier (Empa) for help with sample preparation, and funding from the
Director's Postdoctoral Fellowship program at LANL during the writing of
this manuscript.
NR 11
TC 0
Z9 0
U1 0
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD JUL
PY 2013
VL 69
IS 1
BP 37
EP 40
DI 10.1016/j.scriptamat.2013.03.014
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 152QB
UT WOS:000319545100010
ER
PT J
AU Yu, Q
Sun, J
Morris, JW
Minor, AM
AF Yu, Qian
Sun, Jun
Morris, John W., Jr.
Minor, Andrew M.
TI Source mechanism of non-basal < c plus a > slip in Ti alloy
SO SCRIPTA MATERIALIA
LA English
DT Article
DE Dislocation dynamics; Titanium alloys; Compression test; Transmission
electron microscopy (TEM); In situ TEM observation
ID SINGLE-CRYSTALS; DEFORMATION-BEHAVIOR; DISLOCATION SOURCE; HCP METALS;
TITANIUM; POLYCRYSTALS; SYSTEMS
AB The operation of < c + a > slip is explored using in situ mechanical testing in a transmission electron microscope by compressing a single-crystal Ti alloy oriented along the [0001] direction. In this direction < c + a > slip is the preferred slip mode. We observed the operation of a < c + a > dislocation source while simultaneously measuring the mechanical response. Our results show that < c + a > dislocations could operate as single-arm sources. A model for the source mechanism of < c + a > slip is proposed based on the experimental observations. (c) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Yu, Qian; Morris, John W., Jr.; Minor, Andrew M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Yu, Qian; Minor, Andrew M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Sun, Jun] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
RP Yu, Q (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM qyu@lbl.gov
RI Foundry, Molecular/G-9968-2014
FU US Office of Naval Research [N00014-12-1-0413]; National Center for
Electron Microscopy at Lawrence Berkeley National Laboratory; U.S.
Department of Energy [DE-AC02-05CH11231]; NSFC [50831004]; 973 program
of China [2010CB631003]
FX We gratefully acknowledge funding from the US Office of Naval Research
under Grant No. N00014-12-1-0413. The authors also acknowledge support
of the National Center for Electron Microscopy at Lawrence Berkeley
National Laboratory, which is supported by the U.S. Department of Energy
under Contract # DE-AC02-05CH11231. J.S. gratefully acknowledges
financial support of the Grants from NSFC (50831004), the 973 program of
China (2010CB631003). The authors thank F. Allen for helpful suggestions
on the manuscript.
NR 19
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD JUL
PY 2013
VL 69
IS 1
BP 57
EP 60
DI 10.1016/j.scriptamat.2013.03.009
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 152QB
UT WOS:000319545100015
ER
PT J
AU Olsen, RJ
Beckner, M
Stone, MB
Pfeifer, P
Wexler, C
Taub, H
AF Olsen, Raina J.
Beckner, Matthew
Stone, Matthew B.
Pfeifer, Peter
Wexler, Carlos
Taub, Haskell
TI Quantum excitation spectrum of hydrogen adsorbed in nanoporous carbons
observed by inelastic neutron scattering
SO CARBON
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; METAL-ORGANIC FRAMEWORKS; MOLECULAR-HYDROGEN;
TRANSLATIONAL DYNAMICS; ACTIVATED CARBON; NANOTUBE BUNDLES; H-2;
ADSORPTION; SPECTROSCOPY; DEPENDENCE
AB Inelastic neutron scattering spectra have been collected over a wide range of momentum transfer from H-2 adsorbed in several high-porosity carbon substrates. We show theoretical spectra which consider the relationship between rotational and translational transitions in the highly anisotropic adsorption environment, proving that different rotational excitations contain different amount of recoil broadening and motivating a new analysis method which considers both types of transitions at once. Spectra for most of the samples, including two activated carbons, are very similar to one another, supporting models of nanoporous carbons which are quite similar on the sub-nanometer scale. The exception is the low-energy side of the rotational peak, indicating important differences in the initial distribution of motion. We also find more subtle differences in the spectra which may be linked to differences in sample heterogeneity and surface rugosity. One sample does have a very different spectrum, which is not explained by standard models of this system. We also observe a significantly reduced effective mass in the spectrum of recoil transitions and evidence of coupling of rotational and translational motion resulting from periodic variations in orientation of the rotational states. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Olsen, Raina J.; Beckner, Matthew; Pfeifer, Peter; Wexler, Carlos; Taub, Haskell] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA.
[Olsen, Raina J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Stone, Matthew B.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA.
RP Olsen, RJ (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM olsenrj@ornl.gov
RI Stone, Matthew/G-3275-2011; BL18, ARCS/A-3000-2012;
OI Stone, Matthew/0000-0001-7884-9715; Beckner, Matthew/0000-0003-2066-0324
FU Department of Energy Office of Basic Energy Science (DOE-BES)
[DE-FG02-07ER46411]; Scientific User Facilities Division, Office of
Basic Energy Sciences, U.S. Department of Energy; National Science
Foundation (NSF) [DMR-0705974, DGE-1069091]; DOE Office of Energy
Efficiency and Renewable Energy (EERE) Postdoctoral Research Awards
under the EERE Fuel Cell Technologies Program; DOE [DEAC05-06OR23100]
FX We would like to thank Enrique Robles for capable experimental
assistance. This research was supported by the Department of Energy
Office of Basic Energy Science (DOE-BES) under contract
DE-FG02-07ER46411. Research at Oak Ridge National Laboratory's
Spallation Neutron Source was sponsored by the Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy. H.T. was supported by the National Science Foundation (NSF)
under contract number DMR-0705974 and DGE-1069091. R.J.O. was also
supported in part by the DOE Office of Energy Efficiency and Renewable
Energy (EERE) Postdoctoral Research Awards under the EERE Fuel Cell
Technologies Program, administered by the Oak Ridge Institute for
Science and Education (ORISE) for the DOE. ORISE is managed by Oak Ridge
Associated Universities (ORAU) under DOE contract number
DEAC05-06OR23100. All opinions expressed in this paper are the authors'
and do not necessarily reflect the policies and views of DOE, ORAU, or
ORISE.
NR 37
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
EI 1873-3891
J9 CARBON
JI Carbon
PD JUL
PY 2013
VL 58
BP 46
EP 58
DI 10.1016/j.carbon.2013.02.026
PG 13
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 142ZB
UT WOS:000318835000003
ER
PT J
AU Nemeth, N
Walker, A
Baker, E
Murthy, P
Bratton, R
AF Nemeth, Noel
Walker, Andrew
Baker, Eric
Murthy, Pappu
Bratton, Robert
TI Large-scale Weibull analysis of H-451 nuclear-grade graphite rupture
strength
SO CARBON
LA English
DT Article
ID POLYGRANULAR GRAPHITES; FRACTURE STATISTICS; CERAMICS
AB A Weibull analysis was performed of the strength distribution and size effects for 2000 specimens of H-451 nuclear-grade graphite. The data, generated elsewhere, measured the tensile and four-point-flexure room-temperature rupture strength of specimens cut from a single extruded graphite log. Strength variation versus specimen location, size, and orientation relative to the parent body were compared. In our study, data were progressively and extensively pooled into larger data sets to discriminate overall trends from local variations and investigate the strength distribution. Issues regarding size effect, Weibull parameter consistency, and nonlinear stress-strain response were investigated using the Ceramics Analysis and Reliability Evaluation of Structures Life Prediction Program (CARES/Life) and WeibPar codes. Overall, the Weibull distribution described the behavior of the pooled data very well. The Weibull modulus was shown to be clearly consistent between different tensile specimen sizes and orientations. However, the issue regarding the smaller-than-expected size effect remained. This exercise illustrated that a conservative approach using a two-parameter Weibull distribution is best for designing graphite components with low probability of failure for the in-core structures in the proposed Generation IV high-temperature gas-cooled nuclear reactors. This exercise also demonstrated the continuing need to better understand the mechanisms driving stochastic strength response. Published by Elsevier Ltd.
C1 [Nemeth, Noel; Murthy, Pappu] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA.
[Walker, Andrew] Wright State Univ, Dayton, OH 45435 USA.
[Baker, Eric] Connecticut Reserve Technol, Gates Mills, OH 44040 USA.
[Bratton, Robert] US DOE, Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Nemeth, N (reprint author), NASA, Glenn Res Ctr, Cleveland, OH 44135 USA.
EM noel.n.nemeth@nasa.gov
NR 33
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
J9 CARBON
JI Carbon
PD JUL
PY 2013
VL 58
BP 208
EP 225
DI 10.1016/j.carbon.2013.02.054
PG 18
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 142ZB
UT WOS:000318835000021
ER
PT J
AU Constantinescu, EM
Sandu, A
AF Constantinescu, Emil M.
Sandu, Adrian
TI Extrapolated Multirate Methods for Differential Equations with Multiple
Time Scales
SO JOURNAL OF SCIENTIFIC COMPUTING
LA English
DT Article
DE Multirate time integration; Extrapolation methods; Multiscale; Linear
stability
ID HIGH-RESOLUTION SCHEMES; CONSERVATION-LAWS; VARYING TIME; ONE-STEP;
STABILITY; SYSTEMS
AB In this paper we construct extrapolated multirate discretization methods that allows one to efficiently solve problems that have components with different dynamics. This approach is suited for the time integration of multiscale ordinary and partial differential equations and provides highly accurate discretizations. We analyze the linear stability properties of the multirate explicit and linearly implicit extrapolated methods. Numerical results with multiscale ODEs illustrate the theoretical findings.
C1 [Constantinescu, Emil M.] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA.
[Sandu, Adrian] Virginia Polytech Inst & State Univ, Dept Comp Sci, Blacksburg, VA 24061 USA.
RP Constantinescu, EM (reprint author), Argonne Natl Lab, Math & Comp Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM emconsta@mcs.anl.gov; asandu@cs.vt.edu
FU Office of Advanced Scientific Computing Research, Office of Science,
U.S. Department of Energy [DE-AC02-06CH11357]; National Science
Foundation [NSF CCF-0515170]; NSF [NSF CCF-0515170, NSF OCI-0904397, NSF
CCF-0916493, NSF DMS-0915047]
FX Emil Constantinescu was supported in part by the Office of Advanced
Scientific Computing Research, Office of Science, U.S. Department of
Energy, under Contract DE-AC02-06CH11357, and by the National Science
Foundation through award NSF CCF-0515170. The work of Adrian Sandu was
supported in part by NSF through the awards NSF CCF-0515170, NSF
OCI-0904397, NSF CCF-0916493, and NSF DMS-0915047.
NR 33
TC 7
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U1 1
U2 2
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0885-7474
EI 1573-7691
J9 J SCI COMPUT
JI J. Sci. Comput.
PD JUL
PY 2013
VL 56
IS 1
BP 28
EP 44
DI 10.1007/s10915-012-9662-z
PG 17
WC Mathematics, Applied
SC Mathematics
GA 142GH
UT WOS:000318784600003
ER
PT J
AU Park, SH
Yoon, SH
Lee, CS
AF Park, Su Han
Yoon, Seung Hyun
Lee, Chang Sik
TI HC and CO emissions reduction by early injection strategy in a
bioethanol blended diesel-fueled engine with a narrow angle injection
system
SO APPLIED ENERGY
LA English
DT Article
DE Narrow angle injector; Diesel-bioethanol blended fuels; Hydrocarbon;
Carbon monoxide; Early injection combustion strategy
ID COMPRESSION IGNITION ENGINE; EXHAUST EMISSIONS; COMBUSTION
CHARACTERISTICS; BIODIESEL; PERFORMANCE; ATOMIZATION
AB The main purpose of this study was to investigate how a narrow angle injector affects the combustion and exhaust emissions characteristics in a single-cylinder diesel engine fueled by diesel-bioethanol blends. This study focused on reducing HC and CO emissions in the exhaust emissions by the bioethanol blending of diesel. A narrow angle injector with an injection angle of 70 degrees was used and compared with a conventional angle injector having a 156 degrees injection angle. The bioethanol was blended with the conventional diesel up to 30% with 5% biodiesel. Experiments revealed that, in a narrow angle injector, the premixed combustion duration increased with bioethanol contents unlike the similar value of conventional injector. The premixed combustion phasing decreased with the increase of bioethanol in both injectors. The variation in the peak combustion pressure of the narrow angle injector was smaller than that of a conventional injector. In addition, the narrow angle injector induced a higher indicated mean effective pressure (IMEP) and a shorter ignition delay compared to the conventional injector. In terms of exhaust emissions characteristics, the low and stable ISHC and ISCO emissions can be achieved through the application of narrow angle injector to the diesel-bioethanol blends combustion. By the early injection combustion strategy, ISHC and ISCO emissions are significantly reduced. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Park, Su Han] Argonne Natl Lab, Adv Photon Sources, Xray Sci Div, Time Resolved Res Grp, Lemont, IL 60439 USA.
[Yoon, Seung Hyun] Yeungnam Coll Sci & Technol, Div Automot Engn, Taegu 705703, South Korea.
[Lee, Chang Sik] Hanyang Univ, Sch Mech Engn, Seoul 133791, South Korea.
RP Lee, CS (reprint author), Hanyang Univ, Sch Mech Engn, 17 Haengdang Dong, Seoul 133791, South Korea.
EM cslee@hanyang.ac.kr
FU Second Brain Korea 21 Project; National Research Foundation of Korea
(NRF); Korea government (MEST) [2012007015]
FX This work was supported by the Second Brain Korea 21 Project and was
supported by the National Research Foundation of Korea (NRF) Grant
funded by the Korea government (MEST) (No. 2012007015).
NR 36
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0306-2619
J9 APPL ENERG
JI Appl. Energy
PD JUL
PY 2013
VL 107
BP 81
EP 88
DI 10.1016/j.apenergy.2013.02.015
PG 8
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 137SC
UT WOS:000318456700007
ER
PT J
AU Siriwardane, RV
Ksepko, E
Tian, HJ
Poston, J
Simonyi, T
Sciazko, M
AF Siriwardane, Ranjani V.
Ksepko, Ewelina
Tian, Hanjing
Poston, James
Simonyi, Thomas
Sciazko, Marek
TI Interaction of iron-copper mixed metal oxide oxygen carriers with
simulated synthesis gas derived from steam gasification of coal
SO APPLIED ENERGY
LA English
DT Article
DE Bimetallic oxygen carriers for chemical looping combustion; CLC with
coal derived synthesis gas; CLC and steam gasification of coal
ID CHEMICAL-LOOPING COMBUSTION; SOLID FUELS; CUFE2O4; HYDROGEN; NIO;
REDUCTION; BENTONITE; KINETICS; H2S
AB The objective of this work was to prepare supported bimetallic Fe-Cu oxygen carriers and to evaluate their performance for the chemical-looping combustion (CLC) process with simulated synthesis gas derived from steam gasification of coal/air. Ten-cycle CLC tests were conducted with Fe-Cu oxygen carriers in an atmospheric thermogravimetric analyzer utilizing simulated synthesis gas derived from the steam gasification of Polish Janina coal and Illinois #6 coal as fuel. The effect of temperature on reaction rates, chemical stability, and oxygen transport capacity were determined. Fractional reduction, fractional oxidation, and global rates of reactions were calculated from the thermogravimetric analysis (TGA) data. The supports greatly affected reaction performance. Data showed that reaction rates and oxygen capacities were stable during the 10-cycle TGA tests for most Fe-Cu/support oxygen carriers. Bimetallic Fe-Cu/support oxygen carriers showed higher reduction rates than Fe-support oxygen carriers. The carriers containing higher Cu content showed better stabilities and better reduction rates. An increase in temperature from 800 degrees C to 900 degrees C did not have a significant effect on either the oxygen capacity or the reduction rates with synthesis gas derived from Janina coal. Oxidation reaction was significantly faster than reduction reaction for all supported Fe-Cu oxygen carriers. Carriers with higher Cu content had lower oxidation rates. Ten-cycle TGA data indicated that these oxygen carriers had stable performances at 800-900 degrees C and might be successfully used up to 900 degrees C for coal CLC reaction in the presence of steam. Published by Elsevier Ltd.
C1 [Siriwardane, Ranjani V.; Tian, Hanjing; Poston, James; Simonyi, Thomas] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Ksepko, Ewelina; Sciazko, Marek] Inst Chem Proc Coal, PL-41803 Zabrze, Poland.
[Tian, Hanjing; Simonyi, Thomas] URS, Morgantown, WV 26505 USA.
RP Siriwardane, RV (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd,POB 10940, Morgantown, WV 26507 USA.
EM ranjani.siriwardane@netl.doe.gov
RI Ksepko, Ewelina/D-7806-2016
FU Polish Ministry of Higher Education and Science [685/N-USA/2010/0]
FX This study was financed by the Polish Ministry of Higher Education and
Science, Project No. 685/N-USA/2010/0. The research work was conducted
at the U.S. Department of Energy, National Energy Technology Laboratory.
NR 34
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0306-2619
J9 APPL ENERG
JI Appl. Energy
PD JUL
PY 2013
VL 107
BP 111
EP 123
DI 10.1016/j.apenergy.2013.01.063
PG 13
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 137SC
UT WOS:000318456700010
ER
PT J
AU Nagase, T
Anada, S
Rack, PD
Noh, JH
Yasuda, H
Mori, H
Egami, T
AF Nagase, Takeshi
Anada, Satoshi
Rack, Philip D.
Noh, Joo Hyon
Yasuda, Hidehiro
Mori, Hirotaro
Egami, Takeshi
TI MeV electron-irradiation-induced structural change in the bcc phase of
Zr-Hf-Nb alloy with an approximately equiatomic ratio
SO INTERMETALLICS
LA English
DT Article
DE Irradiation effects; Phase transformation; Vapor deposition; Defects:
point defects
ID METALLIC GLASSES; FLUCTUATION MICROSCOPY; ELEMENTS; PROBE
AB The microstructure and phase stability of a Zr-Hf-Nb alloy with an approximately equiatomic ratio of Zr, Hf, and Nb was investigated. A body-centered cubic (bcc) solid solution was formed in specimens produced by sputtering. MeV electron-irradiation-induced structural changes were investigated in the bcc phase of the Zr-Hf-Nb alloy using high-voltage electron microscopy (HVEM). The polycrystalline phase with a bcc structure showed high phase stability against irradiation damage, and no structural changes due to irradiation damage were observed at 298 K. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Nagase, Takeshi; Yasuda, Hidehiro; Mori, Hirotaro] Osaka Univ, Res Ctr Ultra High Voltage Electron Microscopy, Ibaraki, Osaka 5670047, Japan.
[Nagase, Takeshi; Anada, Satoshi] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan.
[Rack, Philip D.; Noh, Joo Hyon; Egami, Takeshi] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Egami, Takeshi] Univ Tennessee, Joint Inst Neutron Sci, Knoxville, TN 37996 USA.
[Egami, Takeshi] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Egami, Takeshi] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Nagase, T (reprint author), Osaka Univ, Res Ctr Ultra High Voltage Electron Microscopy, 7-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan.
EM t-nagase@uhvem.osaka-u.ac.jp
RI Nagase, Takeshi/M-1189-2015;
OI Nagase, Takeshi/0000-0003-4868-0773; Rack, Philip/0000-0002-9964-3254
FU Center of Excellence for Advanced Structural and Functional Materials
Design of the MEXT, Japan; Joint Institute for Advanced Materials at the
University of Tennessee; Oak Ridge National Laboratory; Department of
Energy, Office of Basic Sciences, through the EPSCoR grant
[DE-FG02-08ER46528]
FX This study was supported by the Priority Assistance for the Formation of
Worldwide Renowned Centers of Research-The Global COE Program (Project:
Center of Excellence for Advanced Structural and Functional Materials
Design) of the Ministry of Education, Culture, Sports, Science and
Technology (MEXT), Japan. PDR and JHN acknowledge the support from the
Joint Institute for Advanced Materials at the University of Tennessee
and the Oak Ridge National Laboratory. TE acknowledges the support from
the Department of Energy, Office of Basic Sciences, through the EPSCoR
grant, DE-FG02-08ER46528.
NR 22
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U1 3
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
J9 INTERMETALLICS
JI Intermetallics
PD JUL
PY 2013
VL 38
BP 70
EP 79
DI 10.1016/j.intermet.2013.02.009
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 137WD
UT WOS:000318468000013
ER
PT J
AU Aryal, S
Gao, MC
Ouyang, L
Rulis, P
Ching, WY
AF Aryal, S.
Gao, M. C.
Ouyang, L.
Rulis, P.
Ching, W. Y.
TI Ab initio studies of Mo-based alloys: Mechanical, elastic, and
vibrational properties
SO INTERMETALLICS
LA English
DT Article
DE Molybdenum silicides; Elastic properties; Mechanical properties, theory;
Ab initio calculations
ID SI-B ALLOYS; GENERALIZED GRADIENT APPROXIMATION; TOTAL-ENERGY
CALCULATIONS; AUGMENTED-WAVE METHOD; SINGLE-CRYSTALS; ULTRASOFT
PSEUDOPOTENTIALS; INTERMETALLIC ALLOYS; TEMPERATURE FRACTURE;
ELECTRONIC-STRUCTURE; FATIGUE PROPERTIES
AB Mo-based alloys hold great potential as structural materials for applications at ultra-high temperatures. In order to reliably predict mechanical and thermodynamic properties of Mo-based alloys, the Mo-Si-B model system is studied using first-principles density functional theory methods. Specifically, five intermetallic compounds MoSi2, Mo5Si3, Mo3Si, Mo5SiB2 and MO2B are chosen, and their equilibrium lattice parameters, elastic properties, phonon spectra, and thermodynamic properties are calculated and compared, most of them for the first time. It is shown that for the calculated properties where the measured data are available, the predicted results are in very good agreement with available experiments, thus validate our computational methodologies. Our comprehensive and systematic calculations reveal many interesting and previously unknown features in the mechanical and vibrational properties of these alloys in relation to their structure and composition. It is shown that boron in the Mo-Si-B system enhances elastic and bulk properties without compromising ductility. MoSi2, which has the largest Si concentration, also has the largest elastic anisotropy compared with the other four crystals. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Aryal, S.; Rulis, P.; Ching, W. Y.] Univ Missouri, Dept Phys & Astron, Kansas City, MO 64110 USA.
[Gao, M. C.] Natl Energy Technol Lab, Albany, OR 97321 USA.
[Gao, M. C.] URS Corp, Albany, OR 97321 USA.
[Ouyang, L.] Tennessee State Univ, Dept Math & Phys, Nashville, TN 37209 USA.
RP Ching, WY (reprint author), Univ Missouri, Dept Phys & Astron, 5100 Rockhill Rd, Kansas City, MO 64110 USA.
EM chingw@umkc.edu
FU U.S. Department of Energy [DE-FE0004007]; Office of Science of DOE
[DE-AC03-76SF00098]; Innovative Processing and Technologies Program of
the National Energy Technology Laboratory's (NETL) Strategic Center for
Coal under the RES contract [DE-FE-0004000]
FX This work is supported by the U.S. Department of Energy under the Grant
No. DE-FE0004007. This research used the resources of NERSC supported by
the Office of Science of DOE under the contract No. DE-AC03-76SF00098.
MCG acknowledge support from the Innovative Processing and Technologies
Program of the National Energy Technology Laboratory's (NETL) Strategic
Center for Coal under the RES contract DE-FE-0004000. We thank Dr. R.
Sakidja for insightful discussion.
NR 52
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
J9 INTERMETALLICS
JI Intermetallics
PD JUL
PY 2013
VL 38
BP 116
EP 125
DI 10.1016/j.intermet.2013.03.002
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 137WD
UT WOS:000318468000019
ER
PT J
AU Dooley, JJ
AF Dooley, James J.
TI A note on good research practice
SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
LA English
DT Editorial Material
C1 Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
RP Dooley, JJ (reprint author), Pacific NW Natl Lab, Joint Global Change Res Inst, 5825 Univ Res Court,Suite 3500, College Pk, MD 20740 USA.
EM jj.dooley@pnnl.gov
OI Dooley, James/0000-0002-2824-4344
NR 6
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U1 0
U2 6
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1750-5836
J9 INT J GREENH GAS CON
JI Int. J. Greenh. Gas Control
PD JUL
PY 2013
VL 15
BP 1
EP 2
DI 10.1016/j.ijggc.2013.02.003
PG 2
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering,
Environmental
SC Science & Technology - Other Topics; Energy & Fuels; Engineering
GA 136VO
UT WOS:000318391700001
ER
PT J
AU Liu, HH
Zhang, GX
Yi, ZL
Wang, YX
AF Liu, Hui-Hai
Zhang, Guoxiang
Yi, ZhenLian
Wang, Yingxue
TI A permeability-change relationship in the dryout zone for CO2 injection
into saline aquifers
SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
LA English
DT Article
DE CO2 geological sequestration; Multiphase flow; Injectivity; Permeability
ID FRACTAL FLOW PATTERNS; HYDRAULIC CONDUCTIVITY; SALT-PRECIPITATION;
UNSATURATED SOILS; MODEL
AB Injectivity is critical for injection of CO2 into saline aquifers. Previous model studies indicate that injectivity can be impaired by salt precipitation near the injection well. These results are largely determined by the relationships between permeability and salt precipitation. In this study, we develop a new relationship for permeability change owing to salt precipitation near a CO2 injection well. This relationship differs from previous relationships in that it considers the fact that the salt precipitation occurs only in pore space occupied by brine during the precipitation process, and in that it is based on well-established relative-permeability relationships for two-phase flow in porous media. Using this relationship, we can link permeability change to the effects of saturation in a CO2-brine system and the pore-size distribution of porous media. Its usefulness is demonstrated by the good agreement between predicted results and observations from a laboratory experiment. The developed methodology, in principle, can also be applied to other two-phase flow systems involving chemical-reaction-induced permeability changes. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Liu, Hui-Hai; Yi, ZhenLian] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Zhang, Guoxiang; Wang, Yingxue] Shell Int E&P Inc, Houston, TX USA.
RP Liu, HH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM hhliu@lbl.gov
FU DOE [DE-AC02-05CH11231]
FX The initial version of the paper was carefully reviewed by Drs. Tianfu
Xu and Dan Hawkes. We also appreciated constructive comments from two
anonymous reviewers for JGGC. The work was performed under DOE contract
DE-AC02-05CH11231.
NR 23
TC 11
Z9 13
U1 2
U2 26
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1750-5836
EI 1878-0148
J9 INT J GREENH GAS CON
JI Int. J. Greenh. Gas Control
PD JUL
PY 2013
VL 15
BP 42
EP 47
DI 10.1016/j.ijggc.2013.01.034
PG 6
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering,
Environmental
SC Science & Technology - Other Topics; Energy & Fuels; Engineering
GA 136VO
UT WOS:000318391700005
ER
PT J
AU Miller, QRS
Thompson, CJ
Loring, JS
Windisch, CF
Bowden, ME
Hoyt, DW
Hu, JZ
Arey, BW
Rosso, KM
Schaef, HT
AF Miller, Q. R. S.
Thompson, C. J.
Loring, J. S.
Windisch, C. F.
Bowden, M. E.
Hoyt, D. W.
Hu, J. Z.
Arey, B. W.
Rosso, K. M.
Schaef, H. T.
TI Insights into silicate carbonation processes in water-bearing
supercritical CO2 fluids
SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
LA English
DT Article
DE Supercritical CO2; Silicate carbonation; Carbon sequestration; Calcite
ID AMORPHOUS CALCIUM-CARBONATE; MAS NMR-SPECTROSCOPY; X-RAY-DIFFRACTION;
WOLLASTONITE CARBONATION; MINERAL CARBONATION; VIBRATIONAL SPECTROSCOPY;
GEOLOGICAL SEQUESTRATION; RAMAN-SPECTROSCOPY; DIOXIDE; MONTMORILLONITE
AB Subsurface injection of CO2 is commonplace in certain industries, yet deployment at the scale required for emission reduction is unprecedented and therefore requires a high degree of predictability. Accurate modeling of subsurface geochemical processes related to geologic carbon sequestration requires experimentally derived data for mineral reactions. Most work in this area has focused on aqueous-dominated systems in which dissolved CO2 reacts to form crystalline carbonate minerals. Comparatively little laboratory research has been conducted on reactions occurring between minerals in the host rock and the wet supercritical fluid phase. We studied the carbonation of wollastonite [CaSiO3] exposed to variably hydrated supercritical CO2 (scCO(2)) at 50, 55 and 70 degrees C and 90, 120 and 160 bar. Reactions were followed by three novel in situ high pressure techniques, which demonstrated increased dissolved water concentrations in the scCO(2) resulted in increased wollastonite carbonation approaching similar to 50 wt.%. Overall, the X-ray diffraction and infrared and magic angle nuclear magnetic resonance spectroscopies experiments conducted in this study allow detailed examination of mechanisms impacting carbonation rates. These include the development of amorphous passivating layers, thin liquid water films, and amorphous hydrated carbonate phases. Collectively, these results emphasize the importance of understanding geochemical processes occurring in wet scCO(2) fluids. (c) 2013 Published by Elsevier B.V.
C1 [Miller, Q. R. S.] Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA.
[Thompson, C. J.; Loring, J. S.; Bowden, M. E.; Hoyt, D. W.; Hu, J. Z.; Arey, B. W.; Rosso, K. M.; Schaef, H. T.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Windisch, C. F.] Cent Missouri State Univ, Dept Chem & Phys, Warrensburg, MO 64093 USA.
RP Schaef, HT (reprint author), Pacific NW Natl Lab, POB 999,MS K8-98, Richland, WA 99352 USA.
EM todd.schaef@pnnl.gov
RI Hoyt, David/H-6295-2013; Hu, Jian Zhi/F-7126-2012
FU Carbon Sequestration Initiative, a Laboratory Directed Research and
Development program at Pacific Northwest National Laboratory (PNNL);
U.S. Department of Energy Office of Fossil Energy; DOE by Battelle
Memorial Institute [DE-AC06-76RLO-1830]
FX The authors would like to thank Natalio Saenz and James Colman who
helped prepare and analyze the polished cross sections. We would also
like to thank Professor Richard Riman from Rutgers, The State University
of New Jersey, for supplying the wollastonite. Furthermore, we would
like to acknowledge two anonymous reviewers for their thorough and
thoughtful comments that helped improve the manuscript. This work was
supported by the Carbon Sequestration Initiative, a Laboratory Directed
Research and Development program at Pacific Northwest National
Laboratory (PNNL) and the U.S. Department of Energy Office of Fossil
Energy. Part of this work was performed at EMSL, a national scientific
user facility at PNNL that is managed by the DOE's office of Biological
and Environmental Research. PNNL is operated for DOE by Battelle
Memorial Institute under Contract No. DE-AC06-76RLO-1830.
NR 81
TC 20
Z9 20
U1 6
U2 70
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1750-5836
J9 INT J GREENH GAS CON
JI Int. J. Greenh. Gas Control
PD JUL
PY 2013
VL 15
BP 104
EP 118
DI 10.1016/j.ijggc.2013.02.005
PG 15
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering,
Environmental
SC Science & Technology - Other Topics; Energy & Fuels; Engineering
GA 136VO
UT WOS:000318391700013
ER
PT J
AU Lakshminarayana, G
Weis, EM
Lira, AC
Caldino, U
Williams, DJ
Hehlen, MP
AF Lakshminarayana, G.
Weis, Eric M.
Lira, A. C.
Caldino, Ulises
Williams, Darrick J.
Hehlen, Markus P.
TI Cross Relaxation in rare-earth-doped oxyfluoride glasses
SO JOURNAL OF LUMINESCENCE
LA English
DT Article
DE Rare-earth luminescence; Oxyfluoride glass; Cross-relaxation;
Multiphonon relaxation; Judd-Ofelt analysis; Hypersensitivity
ID LUMINESCENCE PROPERTIES; IONS; CRYSTALLIZATION; TRANSITIONS;
INTENSITIES; SYSTEMS
AB The excited-state relaxation dynamics of Tb3+, Sm3+, and Eu3+ doped into a 50SiO(2)-20Al(2)O(3)-10Na(2)O-20LaF(3) (mol%) oxyfluoride glass are studied. Multiphonon relaxation of the primary emitting states in Tb3+ (D-5(3) and D-5(4)), Sm3+ ((4)G(5/2)), and Eu3+ (D-5(0)) was found to be negligible in the present host. The relaxation of Tb3+ (D-5(4)) and Eu3+ (D-5(0)) is dominated by radiative decay. For Tb3+ (D-5(3)) and Sm3+ ((4)G(5/2)) in contrast, radiative relaxation is in competition with several non-radiative cross-relaxation processes. This competition was found to be particularly pronounced for the D-5(3) excited state in Tb3+, where a 124-fold decrease of the (D-5(3)-> F-7(5))/(D-5(4)-> F-7(5)) emission intensity ratio and a similar to 10-fold shortening of the D-5(3) lifetime was observed upon increasing the Tb3+ concentration from 0.01% to 1%. The Tb3+ concentration dependence of D-5(3) also points to some degree of ion aggregation in the "as quenched" glasses. A Judd-Ofelt intensity analysis was performed for Sm3+ and used to estimate the relative magnitude of (4)G(5/2) cross-relaxation processes. Four cross-relaxation processes in particular were identified to account for 92% of the total (4)G(5/2) non-radiative decay, and a 11% quantum efficiency was estimated for the (4)G(5/2) excited state. Non-exponentiality in the D-5(0) decay of Eu3+ is evidence for several Eu3+ coordination environments in the glass host that manifest in different D-5(0) decay constants because of the hypersensitivity of the D-5(0)-> F-7(2) transition. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Lakshminarayana, G.; Weis, Eric M.; Hehlen, Markus P.] Los Alamos Natl Lab, Mat Sci & Technol Div MST 7, Los Alamos, NM 87545 USA.
[Lira, A. C.] Univ Autonoma Estado Mexico, Unidad Acad Profes Nezahualcoyotl, Nezahualcoyotl 57000, Estado De Mexic, Mexico.
[Caldino, Ulises] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico.
[Williams, Darrick J.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Hehlen, MP (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div MST 7, POB 1663, Los Alamos, NM 87545 USA.
EM hehlen@lanl.gov
RI Lira, Alicia/O-6173-2015;
OI Lira, Alicia/0000-0002-9630-1494; Gandham,
Lakshminarayana/0000-0002-1458-9368
FU U.S. Department of Energy; Los Alamos Laboratory Directed Research and
Development (LDRD) program; National Nuclear Security Administration of
the U.S. Department of Energy [DE-AC52-06NA25396]
FX This work was supported by the U.S. Department of Energy and the Los
Alamos Laboratory Directed Research and Development (LDRD) program. Los
Alamos National Laboratory is operated by Los Alamos National Security,
LLC, for the National Nuclear Security Administration of the U.S.
Department of Energy under Contract DE-AC52-06NA25396.
NR 31
TC 21
Z9 21
U1 2
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-2313
J9 J LUMIN
JI J. Lumines.
PD JUL
PY 2013
VL 139
BP 132
EP 142
DI 10.1016/j.jlumin.2013.02.039
PG 11
WC Optics
SC Optics
GA 135YY
UT WOS:000318327800021
ER
PT J
AU Bacon, LP
Strybel, TZ
AF Bacon, L. Paige
Strybel, Thomas Z.
TI Assessment of the validity and intrusiveness of online-probe questions
for situation awareness in a simulated air-traffic-management task with
student air-traffic controllers
SO SAFETY SCIENCE
LA English
DT Article
DE Situation awareness measurement; Online probe technique; SPAM;
Intrusiveness; Validity
ID DYNAMIC-SYSTEMS; ERRORS
AB Online-probe techniques for measuring situation awareness (SA) represent an alternative to offline-probe methods in which operators are queried about the situation during scenario freezes with displays blanked. Online-probe queries are administered while the task is ongoing and displays active. However, online-probes techniques have not been validated to the same extent as offline probes, and have been criticized because asking questions about the current or future situation while the task is active could change the operator's subsequent awareness of the situation. The present investigation examined the possibility of the intrusiveness of the online-probe technique to an operator's SA. Twelve student air-traffic controllers (ATCos) served as participants and managed traffic in six 30-min scenarios in which online probes were administered regularly. Off-nominal flight-plan deviations followed some probe queries. Three pre-event question types were administered prior to scheduled flight-plan deviations. These pre-event questions were either relevant to the deviating event and subsequent conflict, relevant to conflicts but not the deviating event, or unrelated to both conflicts and the deviating event. The type of pre-event question preceding a flight-plan deviation did not change the time to detect the deviating event nor the number of losses of separation (LOS) created by the deviation. Moreover, online probes were related to measures of sector safety. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Bacon, L. Paige; Strybel, Thomas Z.] Calif State Univ Long Beach, Dept Psychol, Ctr Human Factors Adv Aeronaut Technol CHAAT, Long Beach, CA 90840 USA.
RP Bacon, LP (reprint author), Battelle Seattle Res Ctr, 1100 Dexter Ave North,Suite 400, Seattle, WA 98109 USA.
EM bacon.lpaige@gmail.com
FU NASA, Group 5 University Research Center: Center for Human Factors in
Advanced Aeronautics Technologies [NNX09AU66A]
FX This project was supported by NASA cooperative agreement NNX09AU66A,
Group 5 University Research Center: Center for Human Factors in Advanced
Aeronautics Technologies (Brenda Collins, Technical Monitor).
NR 30
TC 8
Z9 8
U1 1
U2 22
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0925-7535
J9 SAFETY SCI
JI Saf. Sci.
PD JUL
PY 2013
VL 56
SI SI
BP 89
EP 95
DI 10.1016/j.ssci.2012.06.019
PG 7
WC Engineering, Industrial; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 136WN
UT WOS:000318394200011
ER
PT J
AU Zhang, HL
Fontes, CJ
AF Zhang, Hong Lin
Fontes, Christopher J.
TI Relativistic distorted-wave collision strengths for the 16 Delta n=0
optically allowed transitions with n=2 in the 67 Be-like ions with 26 <=
Z <= 92
SO ATOMIC DATA AND NUCLEAR DATA TABLES
LA English
DT Article
ID HIGHLY-CHARGED IONS; POSSIBLE N=2-N=3 TRANSITIONS; C-LIKE IONS;
OSCILLATOR-STRENGTHS; ELECTRON-IMPACT; ATOMIC DATA; EXCITATION; IRON;
8-LESS-THAN-OR-EQUAL-TO-Z-LESS-THAN-OR-EQUAL-TO-92; COMPLEX
AB Relativistic distorted-wave collision strengths have been calculated for the 16 Delta n = 0 optically allowed transitions with n = 2 in the 67 Be-like ions with nuclear charge number Z in the range 26 <= Z <= 92. The calculations were made for the four final, or scattered, electron energies E' = 0.20, 0.42, 0.80, and 1.40, where E' is in units of Z(eff)(2) Ry with Z(eff) = Z - 2.5. In the present calculation, an improved "top-up" method, which employs relativistic plane waves, was used to obtain the high partial-wave contribution for each transition, in contrast to the partial-relativistic Coulomb-Bethe approximation used in previous work by Zhang and Sampson [H.L. Zhang and D.H. Sampson, At. Data Nucl. Data Tables 52 (1992) 143]. In that earlier work, collision strengths were also provided for Be-like ions, but for a more comprehensive data set consisting of all 45 Delta n = 0 transitions, six scattered energies, and the 85 ions with Z in the range 8 <= Z <= 92. The collision strengths covered in the present work should be more accurate than the corresponding data given by Zhang and Sampson [HI. Zhang and D.H. Sampson, At. Data Nucl. Data Tables 52 (1992) 143] and are presented here to replace those earlier results. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Zhang, Hong Lin; Fontes, Christopher J.] Los Alamos Natl Lab, Computat Phys Div, Los Alamos, NM 87545 USA.
RP Zhang, HL (reprint author), Los Alamos Natl Lab, Computat Phys Div, POB 1663, Los Alamos, NM 87545 USA.
EM zhang@lanl.gov
FU U.S. Department of Energy by Los Alamos National Laboratory
[DE-AC52-06NA25396]
FX This work was performed under the auspices of the U.S. Department of
Energy by Los Alamos National Laboratory under Contract No.
DE-AC52-06NA25396.
NR 29
TC 9
Z9 9
U1 0
U2 14
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0092-640X
J9 ATOM DATA NUCL DATA
JI Atom. Data Nucl. Data Tables
PD JUL
PY 2013
VL 99
IS 4
BP 416
EP 430
DI 10.1016/j.adt.2012.04.004
PG 15
WC Physics, Atomic, Molecular & Chemical; Physics, Nuclear
SC Physics
GA 136VP
UT WOS:000318391800002
ER
PT J
AU Zhong, ZP
Talamo, A
Gohar, Y
AF Zhong, Zhaopeng
Talamo, Alberto
Gohar, Yousry
TI Monte Carlo and deterministic computational methods for the calculation
of the effective delayed neutron fraction
SO COMPUTER PHYSICS COMMUNICATIONS
LA English
DT Article
DE Effective delayed neutron fraction; MCNP; MCNPX; PARTISN
AB The effective delayed neutron fraction beta(eff) plays an important role in kinetics and static analysis of the reactor physics experiments. It is used as reactivity unit referred to as "dollar". Usually, it is obtained by computer simulation due to the difficulty in measuring it experimentally. In 1965, Keepin proposed a method, widely used in the literature, for the calculation of the effective delayed neutron fraction beta(eff). This method requires calculation of the adjoint neutron flux as a weighting function of the phase space inner products and is easy to implement by deterministic codes. With Monte Carlo codes, the solution of the adjoint neutron transport equation is much more difficult because of the continuous-energy treatment of nuclear data. Consequently, alternative methods, which do not require the explicit calculation of the adjoint neutron flux, have been proposed. In 1997, Bretscher introduced the k-ratio method for calculating the effective delayed neutron fraction; this method is based on calculating the multiplication factor of a nuclear reactor core with and without the contribution of delayed neutrons. The multiplication factor set by the delayed neutrons (the delayed multiplication factor) is obtained as the difference between the total and the prompt multiplication factors. Using Monte Carlo calculation Bretscher evaluated the beta(eff) as the ratio between the delayed and total multiplication factors (therefore the method is often referred to as the k-ratio method). In the present work, the k-ratio method is applied by Monte Carlo (MCNPX) and deterministic (PARTISN) codes. In the latter case, the ENDF/B nuclear data library of the fuel isotopes (U-235 and U-238) has been processed by the NJOY code with and without the delayed neutron data to prepare multi-group WIMSD neutron libraries for the lattice physics code DRAGON, which. was used to generate the PARTISN macroscopic cross sections. In recent years Meulekamp and van der Marck in 2006 and Nauchi and Kameyama in 2005 proposed new methods for the effective delayed neutron fraction calculation with only one Monte Carlo computer simulation, compared with the k-ratio method which require two criticality calculations. In this paper, the Meulekamp/Marck and Nauchi/Kameyama methods are applied for the first time by the MCNPX computer code and the results obtained by all different methods are compared. Published by Elsevier B.V.
C1 [Zhong, Zhaopeng; Talamo, Alberto; Gohar, Yousry] Argonne Natl Lab, Lemont, IL 60439 USA.
RP Zhong, ZP (reprint author), Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA.
EM zzhong@anl.gov
OI talamo, alberto/0000-0001-5685-0483
FU Office of Global Nuclear Material Threat Reduction US Department of
Energy [DE-AC02-06CH11357]
FX This work has been supported by the Office of Global Nuclear Material
Threat Reduction US Department of Energy under Contract
DE-AC02-06CH11357.
NR 21
TC 5
Z9 5
U1 0
U2 12
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0010-4655
J9 COMPUT PHYS COMMUN
JI Comput. Phys. Commun.
PD JUL
PY 2013
VL 184
IS 7
BP 1660
EP 1665
DI 10.1016/j.cpc.2013.02.009
PG 6
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 134EW
UT WOS:000318194000003
ER
PT J
AU Certik, O
Pask, JE
Vackar, J
AF Certik, Ondrej
Pask, John E.
Vackar, Jiri
TI dftatom: A robust and general Schrodinger and Dirac solver for atomic
structure calculations
SO COMPUTER PHYSICS COMMUNICATIONS
LA English
DT Article
DE Atomic structure; Electronic structure; Schrodinger equation; Dirac
equation; Kohn-Sham equations; Density functional theory; Shooting
method; Fortran 95
ID ELECTRONIC-STRUCTURE CALCULATIONS; DOUBLE-MINIMUM; VARIABLE
TRANSFORMATION; EQUATION; ELEMENT; FIELDS; STATE; CODE
AB A robust and general solver for the radial Schrodinger, Dirac, and Kohn-Sham equations is presented. The formulation admits general potentials and meshes: uniform, exponential, or other defined by nodal distribution and derivative functions. For a given mesh type, convergence can be controlled systematically by increasing the number of grid points. Radial integrations are carried out using a combination of asymptotic forms, Runge-Kutta, and implicit Adams methods. Eigenfunctions are determined by a combination of bisection and perturbation methods for robustness and speed. An outward Poisson integration is employed to increase accuracy in the core region, allowing absolute accuracies of 10(-8) Hartree to be attained for total energies of heavy atoms such as uranium. Detailed convergence studies are presented and computational parameters are provided to achieve accuracies commonly required in practice. Comparisons to analytic and current-benchmark density-functional results for atomic number Z = 1-92 are presented, verifying and providing a refinement to current benchmarks. An efficient, modular Fortran 95 implementation, dftatom, is provided as open source, including examples, tests, and wrappers for interface to other languages; wherein particular emphasis is placed on the independence (no global variables), reusability, and generality of the individual routines.
C1 [Certik, Ondrej; Vackar, Jiri] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic.
[Certik, Ondrej] Univ Nevada, Reno, NV 89557 USA.
[Certik, Ondrej] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague 2, Czech Republic.
[Pask, John E.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Certik, O (reprint author), Univ Nevada, 1664 N Virginia St, Reno, NV 89557 USA.
EM ondrej.certik@gmail.com; pask1@llnl.gov; vackar@fzu.cz
RI Vackar, Jiri/G-9507-2014
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Czech Science Foundation [LC06040, GACR
101/09/1630]
FX This work was performed, in part, under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. This research was partly supported by the
LC06040 research center project and GACR 101/09/1630 of the Czech
Science Foundation.
NR 46
TC 4
Z9 4
U1 2
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0010-4655
J9 COMPUT PHYS COMMUN
JI Comput. Phys. Commun.
PD JUL
PY 2013
VL 184
IS 7
BP 1777
EP 1791
DI 10.1016/j.cpc.2013.02.014
PG 15
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 134EW
UT WOS:000318194000014
ER
PT J
AU Cousins, BR
Le Borne, S
Linke, A
Rebholz, LG
Wang, Z
AF Cousins, Benjamin R.
Le Borne, Sabine
Linke, Alexander
Rebholz, Leo G.
Wang, Zhen
TI Efficient linear solvers for incompressible flow simulations using
Scott-Vogelius finite elements
SO NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
LA English
DT Article
DE Scott-Vogelius elements; linear solvers; static condensation; augmented
Lagrangian preconditioning; H-Lu
ID NAVIER-STOKES EQUATIONS; MASS CONSERVATION; PARA-VERSION; MATRICES;
DISCRETIZATIONS
AB Recent research has shown that in some practically relevant situations like multiphysics flows (Galvin et al., Comput Methods Appl Mech Eng, to appear) divergence-free mixed finite elements may have a significantly smaller discretization error than standard nondivergence-free mixed finite elements. To judge the overall performance of divergence-free mixed finite elements, we investigate linear solvers for the saddle point linear systems arising in ((P-k)(d), P-k-1(disc)) Scott-Vogelius finite element implementations of the incompressible Navier-Stokes equations. We investigate both direct and iterative solver methods. Due to discontinuous pressure elements in the case of Scott-Vogelius (SV) elements, considerably more solver strategies seem to deliver promising results than in the case of standard mixed finite elements such as Taylor-Hood elements. For direct methods, we extend recent preliminary work using sparse banded solvers on the penalty method formulation to finer meshes and discuss extensions. For iterative methods, we test augmented Lagrangian and H-LU preconditioners with GMRES, on both full and statically condensed systems. Several numerical experiments are provided that show these classes of solvers are well suited for use with SV elements and could deliver an interesting overall performance in several applications. (C) 2012 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 29: 1217-1237, 2013
C1 [Cousins, Benjamin R.; Rebholz, Leo G.] Clemson Univ, Dept Math Sci, Clemson, SC 29634 USA.
[Le Borne, Sabine] Tennessee Technol Univ, Dept Math, Cookeville, TN 38505 USA.
[Linke, Alexander] Free Univ Berlin, Dept Math, D-14195 Berlin, Germany.
[Wang, Zhen] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Sci Comp Grp, Oak Ridge, TN 37831 USA.
RP Rebholz, LG (reprint author), Clemson Univ, Dept Math Sci, Clemson, SC 29634 USA.
EM rebholz@clemson.edu
FU National Science Foundation [DMS0914478, DMS-0913017, DMS1112593]; DFG
Research Center MATHEON, Berlin; Laney Graduate School of Arts and
Science (Emory University), Computational Science Research and
Partnerships (SciDAC) Division, Office of Advanced Scientific Computing
Research, U.S. Department of Energy [DE-AC05-000R22725]; UT-Battelle,
LLC
FX Contract grant sponsor: National Science Foundation; contract grant
number: DMS0914478 (B.C.), DMS-0913017(S.L.B.) and DMS1112593 (L.G.R.);
Contract grant sponsor: DFG Research Center MATHEON, Berlin (A.L.);
Contract grant sponsor: Laney Graduate School of Arts and Science (Emory
University), Computational Science Research and Partnerships (SciDAC)
Division, Office of Advanced Scientific Computing Research, U.S.
Department of Energy; contract grant number: DE-AC05-000R22725 with
UT-Battelle, LLC(Z.W.)
NR 40
TC 3
Z9 3
U1 0
U2 3
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0749-159X
EI 1098-2426
J9 NUMER METH PART D E
JI Numer. Meth. Part Differ. Equ.
PD JUL
PY 2013
VL 29
IS 4
BP 1217
EP 1237
DI 10.1002/num.21752
PG 21
WC Mathematics, Applied
SC Mathematics
GA 133YV
UT WOS:000318177700007
ER
PT J
AU Groth, KM
Swiler, LP
AF Groth, Katrina M.
Swiler, Laura P.
TI Bridging the gap between HRA research and HRA practice: A Bayesian
network version of SPAR-H
SO RELIABILITY ENGINEERING & SYSTEM SAFETY
LA English
DT Article
DE Human reliability analysis (HRA); Bayesian network (BN); SPAR-H;
Causality; Context uncertainty
ID HUMAN RELIABILITY-ANALYSIS; BELIEF NETWORKS; VALIDATION; SYSTEMS
AB The shortcomings of Human Reliability Analysis (HRA) have been a topic of discussion for over two decades. Repeated attempts to address these limitations have resulted in over 50 HRA methods, and the HRA research community continues to develop new methods. However, there remains a gap between the methods developed by HRA researchers and those actually used by HRA practitioners. Bayesian Networks (BNs) have become an increasingly popular part of the risk and reliability analysis framework over the past decade. BNs provide a framework for addressing many of the shortcomings of HRA from a researcher perspective and from a practitioner perspective. Several research groups have developed advanced HRA methods based on BNs, but none of these methods has been adopted by HRA practitioners in the U.S. nuclear power industry or at the U.S. Nuclear Regulatory Commission. In this paper we bridge the gap between HRA research and HRA practice by building a BN version of the widely used SPAR-H method. We demonstrate how the SPAR-H BN can be used by HRA practitioners, and we also demonstrate how it can be modified to incorporate data and information from research to advance HRA practice. The SPAR-H BN can be used as a starting point for translating HRA research efforts and advances in scientific understanding into real, timely benefits for HRA practitioners. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Groth, Katrina M.; Swiler, Laura P.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Groth, KM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM kgroth@sandia.gov
OI Groth, Katrina/0000-0002-0835-7798
FU Laboratory Directed Research and Development program at Sandia National
Laboratories; U.S. Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX This work was supported by the Laboratory Directed Research and
Development program at Sandia National Laboratories. Sandia National
Laboratories is a multi-program laboratory managed and operated by
Sandia Corporation, a wholly owned subsidiary of Lockheed Martin
Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 47
TC 19
Z9 19
U1 3
U2 29
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0951-8320
J9 RELIAB ENG SYST SAFE
JI Reliab. Eng. Syst. Saf.
PD JUL
PY 2013
VL 115
BP 33
EP 42
DI 10.1016/j.ress.2013.02.015
PG 10
WC Engineering, Industrial; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 133IT
UT WOS:000318132800004
ER
PT J
AU GhattyVenkataKrishna, PK
Chavali, N
Uberbacher, EC
AF GhattyVenkataKrishna, Pavan K.
Chavali, Neelima
Uberbacher, Edward C.
TI Flexibility of active-site gorge aromatic residues and non-gorge
aromatic residues in acetylcholinesterase
SO CHEMICAL PAPERS
LA English
DT Article
DE acetylcholine; acetylcholineterase; active site; gorge; aromatic
residues
ID MOLECULAR-DYNAMICS SIMULATIONS; TORPEDO-CALIFORNICA; LIQUID WATER;
X-RAY; PROTEINS; BINDING; DISEASE
AB The presence of an unusually large number of aromatic residues in the active site gorge of acetylcholinesterase is a subject of great interest. Flexibility of these residues has been suspected to be a key player in controlling the ligand traversal in the gorge. This raises the question of whether the over-representation of aromatic residues in the gorge implies higher-than-normal flexibility of these residues. The current study suggests that it does not. Large changes in the hydrophobic cross-sectional area due to dihedral oscillations are probably the reason of their presence in the gorge. (C) 2013 Institute of Chemistry, Slovak Academy of Sciences
C1 [GhattyVenkataKrishna, Pavan K.; Uberbacher, Edward C.] Oak Ridge Natl Lab, Computat Biol & Bioinformat Grp, Oak Ridge, TN 37830 USA.
[Chavali, Neelima] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
RP GhattyVenkataKrishna, PK (reprint author), Oak Ridge Natl Lab, Computat Biol & Bioinformat Grp, Oak Ridge, TN 37830 USA.
EM pkc@ornl.gov
FU U.S. DOE [DE-AC05-00OR22725]; UT-Battelle; Office of Science of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX This work was sponsored by the U.S. DOE under Contract No.
DE-AC05-00OR22725 with UT-Battelle, LLC managing contractor for Oak
Ridge. This research used resources of the National Energy Research
Scientific Computing Center, which is supported by the Office of Science
of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
We thank the reviewers for their comments which greatly improved the
manuscript. PKG thanks Dr. Aloke Kumar for useful discussions.
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PU VERSITA
PI WARSAW
PA SOLIPSKA 14A-1, 02-482 WARSAW, POLAND
SN 0366-6352
J9 CHEM PAP
JI Chem. Pap.
PD JUL
PY 2013
VL 67
IS 7
BP 677
EP 681
DI 10.2478/s11696-013-0354-4
PG 5
WC Chemistry, Multidisciplinary
SC Chemistry
GA 123XE
UT WOS:000317424400001
ER
PT J
AU Mitri, FG
AF Mitri, F. G.
TI Arbitrary scattering of an acoustical high-order Bessel trigonometric
(non-vortex) beam by a compressible soft fluid sphere
SO ULTRASONICS
LA English
DT Article
DE Arbitrary acoustic scattering; Bessel nonvortex beams; Fluid sphere;
Discrete spherical harmonics transform
ID PLANE-PROGRESSIVE WAVES; SONAR CROSS-SECTIONS; RADIATION FORCE;
ELECTROMAGNETIC-FIELDS; RESONANCE EXCITATION; DIELECTRIC SPHERE;
SOUND-SCATTERING; ELASTIC SPHERE; RIGID SPHERE; SHELLS
AB The present analysis extends the previous work on the axial acoustic scattering of a high-order Bessel trigonometric beam (HOBTB) from a fluid sphere [F. G. Mitri, J. Appl. Phys. 109 (2011) 014916] to the generalized case of arbitrary scattering from a fluid sphere placed off-axially. The scattered pressure is expressed using a generalized partial-wave series expansion involving the beam-shape coefficients (BSCs), the scattering coefficients of the fluid sphere, and the half-conical angle of the beam. The BSCs are evaluated using the numerical discrete spherical harmonics transform (DSHT). The properties of the off-axial acoustic scattering by a fluid red blood sphere (RBS), chosen as an example to illustrate the analysis, are discussed. 3D numerical computations for the directivity patterns in the near and far-field regions reveal unexplored phenomena that may be useful in applications related to particle entrapment, manipulation or rotation of soft matter using acoustic HOBTBs. Other potential applications may include medical or nondestructive ultrasound imaging with contrast agents, or monitoring of the manufacturing processes of sample soft matter systems with HOBTBs. (C) 2012 Elsevier B. V. All rights reserved.
C1 Los Alamos Natl Lab, Acoust & Sensors Technol Team, Los Alamos, NM 87545 USA.
RP Mitri, FG (reprint author), Los Alamos Natl Lab, Acoust & Sensors Technol Team, MPA 11,MS D429, Los Alamos, NM 87545 USA.
EM mitri@lanl.gov
FU Los Alamos National Laboratory [LDRD-X9N9, 20100595PRD1]
FX The financial support provided through a Director's fellowship
(LDRD-X9N9, Project # 20100595PRD1) from the Los Alamos National
Laboratory is gratefully acknowledged. Disclosure: this unclassified
publication, with the following reference No. LA-UR 13-20526, has been
approved for unlimited public release under DUSA ENSCI.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0041-624X
J9 ULTRASONICS
JI Ultrasonics
PD JUL
PY 2013
VL 53
IS 5
BP 956
EP 961
DI 10.1016/j.ultras.2012.12.008
PG 6
WC Acoustics; Radiology, Nuclear Medicine & Medical Imaging
SC Acoustics; Radiology, Nuclear Medicine & Medical Imaging
GA 120PW
UT WOS:000317184400005
PM 23395450
ER
PT J
AU Pantea, C
Osterhoudt, CF
Sinha, DN
AF Pantea, Cristian
Osterhoudt, Curtis F.
Sinha, Dipen N.
TI Determination of acoustical nonlinear parameter beta of water using the
finite amplitude method
SO ULTRASONICS
LA English
DT Article
DE Nonlinear acoustics; Water
ID PLANE SOUND-WAVES; BIOLOGICAL MEDIA; HARMONIC-GENERATION;
ELASTIC-CONSTANTS; B/A; MIXTURES
AB The acoustic nonlinearity of water is investigated using a variation of the finite amplitude method with harmonic generation. The finite amplitude method provides information on the coefficient of nonlinearity, beta, through the ratio of the amplitude of the fundamental and that of the second harmonic. The pressure of both the fundamental, p(1), and that of the second harmonic, p(2), are determined experimentally at different transmitter-receiver separation distances, eliminating the need for knowledge of the sound absorption in the medium. It was found that the experimental relationship between the slope of p(2)(x)/p(1)(2)(x) and transmitter-receiver separation distance, x, follows a linear relationship only in the near-field, in good agreement with theoretical predictions. A beta of 3.5 +/- 0.1 is determined for water at room temperature, in good agreement with previous results from both the isentropic equation of state and finite amplitude method. Published by Elsevier B.V.
C1 [Pantea, Cristian; Sinha, Dipen N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Osterhoudt, Curtis F.] Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA.
RP Pantea, C (reprint author), Los Alamos Natl Lab, MS D429, Los Alamos, NM 87545 USA.
EM pantea@lanl.gov
RI Pantea, Cristian/D-4108-2009;
OI Pantea, Cristian/0000-0002-0805-8923
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0041-624X
J9 ULTRASONICS
JI Ultrasonics
PD JUL
PY 2013
VL 53
IS 5
BP 1012
EP 1019
DI 10.1016/j.ultras.2013.01.008
PG 8
WC Acoustics; Radiology, Nuclear Medicine & Medical Imaging
SC Acoustics; Radiology, Nuclear Medicine & Medical Imaging
GA 120PW
UT WOS:000317184400012
PM 23453558
ER
PT J
AU Huang, Q
Cosimbescu, L
Koech, P
Choi, D
Lemmon, JP
AF Huang, Qian
Cosimbescu, Lelia
Koech, Phillip
Choi, Daiwon
Lemmon, John P.
TI Composite organic radical-inorganic hybrid cathode for lithium-ion
batteries
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Hybrid cathode; PTMA/LiFePO4 composite; High pulse power; Organic
radical; Lithium-ion battery
ID RECHARGEABLE BATTERIES; BEHAVIOR; ELECTRODES; POLYMERS
AB A new organic radical-inorganic hybrid cathode comprised of poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methacrylate) (PTMA)/LiFePO4 composite system was developed and reported for the first time. The hybrid electrodes' voltammetry contains three pairs of reversible redox peaks indicating the combination of electrochemical characteristics between LiFePO4 and PTMA electrodes and shows a decrease in voltage gap between oxidation and reduction that corresponds to an improvement in the rate and reversibility of the redox couples. Results from electrochemical impedance spectroscopy show lower charge-transfer resistance of cycled hybrid cathodes suggesting an enhanced electrode/electrolyte interface formed in hybrid systems which leads to faster migration of Li ions through the interface and longer cycle life capability when compared with pure LiFePO4 or PTMA cathode system. Optimizing the hybrid cathode's ratio of PTMA/LiFePO4 yields a significant improvement in high pulse power performance (30 mAh cm(-3)) over the pure PTMA (16 mAh cm(-3)) or LiFePO4 (3.0 mAh cm(-3)) cathode. Further characterization of the hybrid electrodes using SEM showed a more compact surface morphology after high rate pulse experiments. The demonstrated properties of hybrid cathodes are promising for transportation and other high pulse power applications that require long cycle life and low cost. (C) 2013 Published by Elsevier B.V.
C1 [Huang, Qian; Cosimbescu, Lelia; Koech, Phillip; Choi, Daiwon; Lemmon, John P.] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Lemmon, JP (reprint author), Pacific NW Natl Lab, 908 Battelle Blvd,POB 999, Richland, WA 99354 USA.
EM John.Lemmon@pnl.gov
RI Choi, Daiwon/B-6593-2008;
OI Koech, Phillip/0000-0003-2996-0593
FU Assistant Secretary for Energy Efficiency and Renewable Energy, Office
of Vehicle Technologies of the U.S. Department of Energy
[DE-AC02-05CH11231]; Batteries for Advanced Transportation Technologies
(BATT) Program [24134]
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Office of Vehicle Technologies of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231, Subcontract
No 24134 under the Batteries for Advanced Transportation Technologies
(BATT) Program. The authors would thank Bruce W. Arey of the
Environmental Molecular Sciences Laboratory (EMSL) for the SEM
characterization.
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PI AMSTERDAM
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SN 0378-7753
EI 1873-2755
J9 J POWER SOURCES
JI J. Power Sources
PD JUL 1
PY 2013
VL 233
BP 69
EP 73
DI 10.1016/j.jpowsour.2013.01.076
PG 5
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 115QM
UT WOS:000316827000010
ER
PT J
AU Cronin, JS
Chen-Wiegart, YCK
Wang, J
Barnett, SA
AF Cronin, J. Scott
Chen-Wiegart, Yu-chen Karen
Wang, Jun
Barnett, Scott A.
TI Three-dimensional reconstruction and analysis of an entire solid oxide
fuel cell by full-field transmission X-ray microscopy
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE SOFC; Electrode; Microstructure; X-ray tomography; Reconstruction; 3D
ID MICROSTRUCTURE DEGRADATION; ELECTRON-MICROSCOPY; COMPOSITE CATHODES; YSZ
ANODE; PERFORMANCE; TEMPERATURE; TOMOGRAPHY
AB An entire active region of an anode-supported solid oxide fuel cell was structurally analyzed by X-ray computed nano-tomography using full-field transmission X-ray microscopy (NANO-TXM). A total three-dimensional volume of similar to 38,500 mu m(3) was imaged, from which Ni-YSZ anode functional layer (similar to 3650 mu m(3)) and LSM-YSZ cathode functional layer (similar to 4100 mu m(3)) volumes were reconstructed. These were among the largest-volume electrode reconstructions ever reported, while at the same time exhibiting high spatial resolution of 50 nm. Comparison with electrode microstructures measured using other imaging methods demonstrates that the larger NANO-TXM-measured volumes provided significantly more accurate phase connectivity information. A microstructure-based electrochemical model prediction agreed well with the measured full-cell electrochemical data. The results suggest that low LSM connectivity and slow oxygen reduction reaction kinetics in the cathode were a major limitation to the overall cell performance. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Cronin, J. Scott; Barnett, Scott A.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Chen-Wiegart, Yu-chen Karen; Wang, Jun] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA.
RP Barnett, SA (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM s-bamett@northwestern.edu
RI Barnett, Scott/B-7502-2009
FU National Science Foundation Ceramics program [DMR-0907639]; U.S.
Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX The authors gratefully acknowledge the financial support from the
National Science Foundation Ceramics program through grant DMR-0907639.
Furthermore, efforts by Kyle Yakal-Kremski for electrode visualization
and Prof. Eric Maire who provided us with the ImageJ plug-in for
tortuosity calculations are greatly appreciated. We thank Dr. Fernando
Camino (BNL) for assisting the development of the sample preparation
procedure using FIB/SEM at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, which is supported by the U.S.
Department of Energy, Office of Basic Energy Sciences, under Contract
No. DE-AC02-98CH10886. Use of the National Synchrotron Light Source,
Brookhaven National Laboratory, was supported by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-98CH10886.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUL 1
PY 2013
VL 233
BP 174
EP 179
DI 10.1016/j.jpowsour.2013.01.060
PG 6
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 115QM
UT WOS:000316827000025
ER
PT J
AU Li, L
Dunn, JB
Zhang, XX
Gaines, L
Chen, RJ
Wu, F
Amine, K
AF Li, Li
Dunn, Jennifer B.
Zhang, Xiao Xiao
Gaines, Linda
Chen, Ren Jie
Wu, Feng
Amine, Khalil
TI Recovery of metals from spent lithium-ion batteries with organic acids
as leaching reagents and environmental assessment
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Spent lithium-ion batteries; Acid leaching; Cathode active materials;
Organic acids; Environmental assessment
ID HYDROMETALLURGICAL PROCESS; SECONDARY BATTERIES; ELECTRIC VEHICLES;
COBALT; WASTE; NICKEL; CATHODES; CATALYST
AB A leaching process for the recovery of cobalt and lithium from spent lithium-ion batteries (LIB) is developed in this work. Three different organic acids, namely citric acid, malic acid and aspartic acid, are used as leaching reagents in the presence of hydrogen peroxide. The cathode active materials before and after acid leaching are characterized by X-ray diffraction and scanning electron microscopy. Recovery of cobalt and lithium is optimized by varying the leachant and H2O2 concentrations, the solid-to-liquid ratio, and the reaction temperature and duration. Whereas leaching with citric and malic acids recovered in excess of 90% of cobalt and lithium, leaching with aspartic acid recovered significantly less of these metals. The leaching mechanism likely begins with the dissolution of the active material (LiCoO2) in the presence of H2O2 followed by chelation of Co(II) and Li with citrate, malate or aspartate. An environmental analysis of the process indicates that it may be less energy and greenhouse gas intensive to recover Co from spent LIBs than to produce virgin cobalt oxide. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Li, Li; Zhang, Xiao Xiao; Chen, Ren Jie; Wu, Feng] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China.
[Dunn, Jennifer B.; Gaines, Linda] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Li, Li; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Wu, F (reprint author), Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China.
EM wufeng863@bit.edu.cn; amine@anl.gov
RI Amine, Khalil/K-9344-2013
FU International S&T Cooperation Program of China [2010DFB63370]; Chinese
National 973 Program [2009CB220106]; Beijing Nova Program
[Z121103002512029]; Beijing Excellent Youth Scholars funding; Chinese
Education Ministry [NCET-12-0050]; Vehicle Technology Program of the
Office of Energy Efficiency and Renewable Energy, U.S. Department of
Energy [DE-AC02-06CH11357]
FX The experimental work of this study was supported by the International
S&T Cooperation Program of China (2010DFB63370), the Chinese National
973 Program (2009CB220106), Beijing Nova Program (Z121103002512029),
Beijing Excellent Youth Scholars funding, and the New Century
Educational Talents Plan of the Chinese Education Ministry
(NCET-12-0050). The analysis work, especially the life-cycle analysis
work, was supported by the Vehicle Technology Program of the Office of
Energy Efficiency and Renewable Energy, U.S. Department of Energy, under
contract DE-AC02-06CH11357. The authors would like to thank Dr. Michael
Wang and Dr. John Sullivan of Argonne National Laboratory for helpful
discussions in the development of this paper.
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SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUL 1
PY 2013
VL 233
BP 180
EP 189
DI 10.1016/j.jpowsour.2012.12.089
PG 10
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 115QM
UT WOS:000316827000026
ER
PT J
AU Bettge, M
Li, Y
Sankaran, B
Rago, ND
Spila, T
Haasch, RT
Petrov, I
Abraham, DP
AF Bettge, Martin
Li, Yan
Sankaran, Bharat
Rago, Nancy Dietz
Spila, Timothy
Haasch, Richard T.
Petrov, Ivan
Abraham, Daniel P.
TI Improving high-capacity Li1.2Ni0.15Mn0.55Co0.1O2-based lithium-ion cells
by modifiying the positive electrode with alumina
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium-ion; Atomic layer deposition; Al2O3; Coating; Secondary ion mass
spectrometry; Layered oxide
ID ATOMIC LAYER DEPOSITION; LINI0.8CO0.15AL0.05O2 CATHODES; ELECTROCHEMICAL
INTERCALATION; COMPOSITE ELECTRODES; GRAPHITE ANODE; BATTERIES; LI;
PERFORMANCE; DEGRADATION; LICOO2
AB Practical high-capacity Li-ion cells containing Li1.2Ni0.15Mn0.55Co0.1O2-based positive and graphite-based negative electrodes show substantial capacity loss and impedance rise when repeatedly cycled to, or held for extended periods, at voltages exceeding 4.5 V. Their performance can be effectively improved by modifying the positive electrode. The positive composite electrodes are modified here in two different ways: by (i) alumina coatings of up to similar to 4 nm applied via atomic layer deposition (ALD), and (ii) addition of nanoscale alumina powder. Thicknesses of the ALD coatings are estimated via X-ray photoelectron spectroscopy (XPS).
Electrochemical cycling reveals that capacity retention is better, and impedance rise is smaller for cells containing ALD-coated electrodes. Cells with alumina-powder modified electrodes show also improved capacity retention, but without improvements in impedance. Improved capacity retention is primarily due to reduced Li trapping on the negative electrode. Lower impedance growth, in ALD modified cells, is attributed to improved electro-mechanical integrity and altered surface films inside the positive electrode. The alumina coating inhibits, but does not prevent, transition metal dissolution. The coating also reduces electrolyte oxidation. Significant accumulation of Al on the negative electrode indicates electrochemical crosstalk between the electrodes and chemical instability of the ALD coatings during extended cycling. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Bettge, Martin; Li, Yan; Rago, Nancy Dietz; Abraham, Daniel P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Li, Yan] Univ Rochester, Mat Sci Program, Rochester, NY 14627 USA.
[Sankaran, Bharat; Spila, Timothy; Haasch, Richard T.; Petrov, Ivan] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA.
RP Abraham, DP (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave Lemont, Argonne, IL 60439 USA.
EM bettge@anl.gov; liy@anl.gov; bharat.sankaran@gmail.com; dietz@anl.gov;
tspila@illinois.edu; r-haasch@illinois.edu; petrov@illinois.edu;
abraham@anl.gov
RI Li, Yan/H-2957-2012; Petrov, Ivan/D-4910-2011
OI Li, Yan/0000-0002-9801-7243; Petrov, Ivan/0000-0002-2955-4897
FU U.S. Department of Energy's Vehicle Technologies Program
[DE-AC02-06CH11357]; DOE Vehicle Technologies Program (VTP) within the
core funding of the Applied Battery Research (ABR) for Transportation
Program; U. S. Department of Energy, Office of Science, Office of Basic
Energy Sciences [DE-AC02-06CH11357]
FX Support from the U.S. Department of Energy's Vehicle Technologies
Program, specifically from Peter Faguy and Dave Howell, is gratefully
acknowledged. We also acknowledge valuable discussions with D. Dees, J.
Bareno, and Y. Zhu (at Argonne). The submitted manuscript has been
created by UChicago Argonne, LLC, Operator of Argonne National
Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of
Science laboratory, is operated under Contract No. DE-AC02-06CH11357.
The U.S. Government retains for itself, and others acting on its behalf,
a paid-up non-exclusive, irrevocable worldwide license in said article
to reproduce, prepare derivative works, distribute copies to the public,
and perform publicly and display publicly, by or on behalf of the
Government. We are grateful to B. Polzin, A. Jansen, and S. Trask from
the U.S. Department of Energy's (DOE) Cell Fabrication Facility (CFF),
Argonne. The CFF is fully supported by the DOE Vehicle Technologies
Program (VTP) within the core funding of the Applied Battery Research
(ABR) for Transportation Program. Use of the Center for Nanoscale
Materials was supported by the U. S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357. The work was carried out in part in the Frederick
Seitz Materials Research laboratory Central Facilities, University of
Illinois at Urbana-Champaign (UIUC). We're grateful to E. Sammann (at
UIUC) for his many significant suggestions and comments.
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SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUL 1
PY 2013
VL 233
BP 346
EP 357
DI 10.1016/j.jpowsour.2013.01.082
PG 12
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 115QM
UT WOS:000316827000048
ER
PT J
AU Zapata-Solvas, E
Jayaseelan, DD
Lin, HT
Brown, P
Lee, WE
AF Zapata-Solvas, E.
Jayaseelan, D. D.
Lin, H. T.
Brown, P.
Lee, W. E.
TI Mechanical properties of ZrB2- and HfB2-based ultra-high temperature
ceramics fabricated by spark plasma sintering
SO JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
LA English
DT Article
DE Spark plasma sintering (SPS); Electrical discharge machining (EDM);
Flexural strength; Fracture surface; High temperature; Oxidation
ID THERMO-PHYSICAL PROPERTIES; DIBORIDE-BASED CERAMICS; ZIRCONIUM DIBORIDE;
HYPERSONIC APPLICATIONS; FRACTURE-TOUGHNESS; MATRIX COMPOSITES; SHOCK
RESISTANCE; MICROSTRUCTURE; DENSIFICATION; STRENGTH
AB Flexural strengths at room temperature, at 1400 degrees C in air and at room temperature after 1 h oxidation at 1400 degrees C were determined for ZrB2- and HfB2-based ultra-high temperature ceramics (UHTCs). Defects caused by electrical discharge machining (EDM) lowered measured strengths significantly and were used to calculate fracture toughness via a fracture mechanics approach. ZrB2 with 20 vol.% SiC had room temperature strength of 700 +/- 90 MPa, fracture toughness of 6.4 +/- 0.6 MPa, Vickers hardness at 9.8N load of 21.1 +/- 0.6 GPa, 1400 degrees C strength of 400 +/- 30 MPa and room temperature strength after 1 h oxidation at 1400 degrees C of 678 +/- 15 MPa with an oxide layer thickness of 45 +/- 5 mu m. HfB2 with 20 vol.% SiC showed room temperature strength of 620 +/- 50 MPa, fracture toughness of 5.0 +/- 0.4 MPa, Vickers hardness at 9.8 N load of 27.0 +/- 0.6 GPa, 1400 degrees C strength of 590 +/- 150 MPa and room temperature strength after 1 h oxidation at 1400 degrees C of 660 +/- 25 MPa with an oxide layer thickness of 12 +/- 1 mu m. 2 wt.% La2O3 addition to UHTCs slightly reduced mechanical performance while increasing tolerance to property degradation after oxidation and effectively aided internal stress relaxation during spark plasma sintering (SPS) cooling, as quantified by X-ray diffraction (XRD). Slow crack growth was suggested as the failure mechanism at high temperatures as a consequence of sharp cracks formation during oxidation. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Zapata-Solvas, E.; Jayaseelan, D. D.; Lee, W. E.] Univ London Imperial Coll Sci Technol & Med, Ctr Adv Struct Ceram, London SW7 2AZ, England.
[Lin, H. T.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Brown, P.] Dstl, Salisbury SP4 0JQ, Wilts, England.
RP Zapata-Solvas, E (reprint author), CSIC Univ Sevilla, Inst Ciencia Mat Sevilla, C Amer Vespucio 49, Seville 41092, Spain.
EM ezapata@us.es
RI Zapata-Solvas, Eugenio/O-9151-2014
OI Zapata-Solvas, Eugenio/0000-0002-6162-8788
FU JAE-DOC program of CSIC, Spain; European Union; DSTL, UK
[DSTLX-1000015413]
FX The authors' acknowledge Prof. Mike Reece, Nanoforce Technology Ltd.,
Queen Mary, University of London, UK for providing access to the SPS
facility. EZS acknowledges the support of 'Fundacion Ramon Areces,
Spain' and the Centre for Advanced Structural Ceramics (CASC) for his
postdoctoral fellowship to stay at Imperial College London to carry out
this work, UK. EZS also acknowledges current support through a contract
from the JAE-DOC program of CSIC, Spain, co-funded by the European Union
FSE. DDJ acknowledges the support of DSTL, UK for providing the
financial support for this work under contract number DSTLX-1000015413.
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0955-2219
J9 J EUR CERAM SOC
JI J. Eur. Ceram. Soc.
PD JUL
PY 2013
VL 33
IS 7
BP 1373
EP 1386
DI 10.1016/j.jeurceramsoc.2012.12.009
PG 14
WC Materials Science, Ceramics
SC Materials Science
GA 111LI
UT WOS:000316522400015
ER
PT J
AU Xu, ZJ
AF Xu, Zhijie
TI A REDUCED-BOUNDARY-FUNCTION METHOD FOR LONGITUDINAL SOLUTION DISPERSION
IN SYMMETRIC CONFINED FLOWS
SO CHEMICAL ENGINEERING COMMUNICATIONS
LA English
DT Article
DE Homogenization; Multiscale; Reduced-boundary function; Transport;
Upscaling
AB We present a reduced-boundary-function method for longitudinal solute transport in symmetric laminar flows. Flow is confined by two flat plates separated by a distance of 2a or by a tube with a radius of a (Figure 1). The standard advection-diffusion equation is mapped onto the boundary (r=a and r=0, where r is the distance from the centerline shown in Figure 1). The original problem of solving c(x,r,t) is reduced to solve the solutions of c at the boundary, and the problem dimensionality is reduced from 3 to 2. Final results show that the boundary concentration ca(x,t)=c(x, r=a,t) is advected at the mean velocity with a dispersion equal to the molecular diffusion. The centerline concentration c0(x,t)=c(x,r=0,t) is also advected at the mean velocity, but with a dispersion much larger than the Taylor dispersion. The cross-sectional average concentration is in agreement with the classical Taylor dispersion by neglecting higher order contributions. This study is relevant to the upscaling of solute transport.
C1 [Xu, Zhijie] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Xu, ZJ (reprint author), Pacific NW Natl Lab, Computat Math Grp, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
EM zhijie.xu@pnnl.gov
RI Xu, Zhijie/A-1627-2009
OI Xu, Zhijie/0000-0003-0459-4531
NR 14
TC 1
Z9 1
U1 0
U2 8
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0098-6445
J9 CHEM ENG COMMUN
JI Chem. Eng. Commun.
PD JUL 1
PY 2013
VL 200
IS 7
BP 853
EP 862
DI 10.1080/00986445.2012.712582
PG 10
WC Engineering, Chemical
SC Engineering
GA 105YR
UT WOS:000316109100001
ER
PT J
AU Liu, J
Zhong, C
Du, XT
Wu, YT
Xu, PZ
Liu, JB
Hu, WB
AF Liu, Jie
Zhong, Cheng
Du, Xintong
Wu, Yating
Xu, Peizhi
Liu, Jinbo
Hu, Wenbin
TI Pulsed electrodeposition of Pt particles on indium tin oxide substrates
and their electrocatalytic properties for methanol oxidation
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Pt catalysts; Pulsed electrodeposition; Surface morphology; Methanol
oxidation; Indium tin oxide
ID GOLD NANOPARTICLES; AMMONIA OXIDATION; FUEL-CELLS; PLATINUM
NANOPARTICLES; HYDROGEN-PEROXIDE; ITO; GROWTH; CARBON; DEPOSITION;
SURFACES
AB The platinum (Pt) particle electrocatalysts supported on the indium tin oxide (ITO) substrate were prepared by the pulsed electrodeposition for the methanol oxidation. The effect of the lower potential pulse duration (t(1)) of the electrodeposition on the surface morphology and structure of the Pt particles was investigated by the X-ray diffraction and scanning electron microscopy. The amount of the Pt loading was determined by an inductively coupled plasma method, and the electrocatalytic activity of the prepared Pt electrocatalysts on the ITO for the methanol oxidation was characterized by cyclic voltammetry. The results showed that the A has a significant influence on the surface morphology of the Pt particles on the ITO substrate. As the t(1) decreases from 1 to 0.01 s, the deposited Pt particles on the ITO exhibit flower-, nanosheet-, prickly and smooth spherical-like morphology in turn. Furthermore, there is a remarkable effect of the surface morphology of the Pt particles on the electrocatalytic activity for the methanol oxidation. Among all these morphologies, the flower- and nanosheet-like Pt particles on the ITO have a much higher mass specific activity (MA) for the methanol oxidation, and the Pt particles with prickly surface followed while the smooth spherical Pt particles have the lowest MA. In particular, the dispersed Pt nanosheets prepared at t(1) of 0.5 s has the highest MA. The much improved MA of the dispersed Pt nanosheets is attributed not only to the large electrochemically active surface area (ECSA) achieved, but also to the high electrocatalytic activity per unit ECSA related to its special morphology. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Liu, Jie; Zhong, Cheng; Du, Xintong; Wu, Yating; Xu, Peizhi; Hu, Wenbin] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
[Liu, Jinbo] Texas A&M Univ Kingsville, Dept Chem, Kingsville, TX 78363 USA.
[Liu, Jinbo] ALS Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Zhong, C (reprint author), Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China.
EM chengz@sjtu.edu.cn; material_hu@163.com
RI Zhong, Cheng/E-7733-2012;
OI Zhong, Cheng/0000-0003-1852-5860; Liu, Jie/0000-0003-0193-1336
FU National Science Foundation for Distinguished Young Scholars of China
[51125016]; Shanghai Municipal Education Commission; "Chen Guang"
project; Shanghai Education Development Foundation, Shanghai Jiao Tong
University [IPP6090, IPP6093, S050ITP5011]
FX The authors thank Drs. Y.J. Zhou, S. Xu and W. Li in the Instrumental
Analysis Center of Shanghai Jiao Tong University for the ICP and SEM
analysis. This work was supported by the National Science Foundation for
Distinguished Young Scholars of China (51125016), and partially
supported by "Chen Guang" project supported by Shanghai Municipal
Education Commission and Shanghai Education Development Foundation
(11CG12), Shanghai Jiao Tong University (IPP6090, IPP6093 and
S050ITP5011).
NR 50
TC 26
Z9 27
U1 5
U2 110
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-4686
J9 ELECTROCHIM ACTA
JI Electrochim. Acta
PD JUN 30
PY 2013
VL 100
BP 164
EP 170
DI 10.1016/j.electacta.2013.03.152
PG 7
WC Electrochemistry
SC Electrochemistry
GA 165OE
UT WOS:000320492400022
ER
PT J
AU Guo, H
Chien, CC
He, Y
Levin, K
AF Guo, Hao
Chien, Chih-Chun
He, Yan
Levin, K.
TI FUNDAMENTAL CONSTRAINTS ON LINEAR RESPONSE THEORIES OF FERMI SUPERFLUIDS
ABOVE AND BELOW T-c
SO INTERNATIONAL JOURNAL OF MODERN PHYSICS B
LA English
DT Review
DE BCS theory; linear response theory; BCS-BEC crossover; gauge invariance;
superfluids; Fermi gases; pairing fluctuations
ID SUPERCONDUCTIVITY; GAS; TEMPERATURE
AB We present fundamental constraints required for a consistent linear response theory of fermionic superfluids and address temperatures both above and below the transition temperature Tc. We emphasize two independent constraints, one associated with gauge invariance (and the related Ward identity) and another associated with the compressibility sum rule, both of which are satisfied in strict BCS theory. However, we point out that it is the rare many body theory which satisfies both of these. Indeed, well studied quantum Hall systems and random-phase approximations to the electron gas are found to have difficulties with meeting these constraints. We summarize two distinct theoretical approaches which are, however, demonstrably compatible with gauge invariance and the compressibility sum rule. The first of these involves an extension of BCS theory to a mean field description of the BCS-Bose Einstein condensation crossover. The second is the simplest Nozieres Schmitt-Rink (NSR) treatment of pairing correlations in the normal state. As a point of comparison we focus on the compressibility kappa of each and contrast the predictions above Tc. We note here that despite the compliance with sum rules, this NSR based scheme leads to an unphysical divergence in kappa at the transition. Because of the delicacy of the various consistency requirements, the results of this paper suggest that avoiding this divergence may repair one problem while at the same time introducing others.
C1 [Guo, Hao] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China.
[Guo, Hao] Univ Hong Kong, Dept Phys, Hong Kong 999077, Hong Kong, Peoples R China.
[Chien, Chih-Chun] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[He, Yan] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA.
[He, Yan; Levin, K.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
[He, Yan; Levin, K.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA.
RP Guo, H (reprint author), Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China.
EM chihchun@lanl.gov
RI He, Yan/B-1594-2012
FU National Natural Science Foundation of China [11204032]; Natural Science
Foundation of Jiangsu Province, China [SBK201241926]; U.S. Department of
Energy through the LANL/LDRD Program; NSF-MRSEC [0820054]
FX Hao Guo thanks the support by National Natural Science Foundation of
China (Grants No. 11204032) and Natural Science Foundation of Jiangsu
Province, China (SBK201241926). C. C. C. acknowledges the support of the
U.S. Department of Energy through the LANL/LDRD Program. Additional
support (KL) is via NSF-MRSEC Grant 0820054.
NR 33
TC 4
Z9 4
U1 0
U2 6
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0217-9792
J9 INT J MOD PHYS B
JI Int. J. Mod. Phys. B
PD JUN 30
PY 2013
VL 27
IS 16
AR 1330010
DI 10.1142/S0217979213300107
PG 20
WC Physics, Applied; Physics, Condensed Matter; Physics, Mathematical
SC Physics
GA 159OU
UT WOS:000320056000001
ER
PT J
AU Choi, S
Pisano, AP
Zohdi, TI
AF Choi, Sun
Pisano, Albert P.
Zohdi, Tarek I.
TI An analysis of evaporative self-assembly of micro particles in printed
picoliter suspension droplets
SO THIN SOLID FILMS
LA English
DT Article
DE Evaporative self-assembly; Non-equilibrium assembly; Micro particle;
Picoliter droplets; Particle simulation
ID ORDERED 2-DIMENSIONAL ARRAYS; HYDROPHOBIC SURFACES; COLLOIDAL CRYSTALS;
PHOTONIC CRYSTALS; NANOPARTICLES; FABRICATION; CRYSTALLIZATION;
MICROSPHERES; DISPERSIONS; ARRANGEMENT
AB We report systematic experimental and computational studies to analyze evaporative self-assembly of micro particles in printed picoliter suspension droplets. Evaporative self-assembly of micro particles in picoliter droplets is enabled by a droplet-printing system for small-scale particle suspension droplets. Experiments were performed to study the regime where particle interactive forces become comparable to hydrodynamic, evaporative forces of an evaporating droplet. A particle-based computational method was developed to calculate the particle-to-particle clustering time. In this study, we verify that there is a time-scale competition between particle-to-particle clustering and evaporation of the liquid medium that determines the final morphology of micro particle assemblies. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Choi, Sun; Pisano, Albert P.] Univ Calif Berkeley, BSAC, Berkeley, CA 94720 USA.
[Choi, Sun; Pisano, Albert P.; Zohdi, Tarek I.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Pisano, Albert P.] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
RP Choi, S (reprint author), Univ Calif Berkeley, Div Earth Sci, LBNL, Berkeley, CA 94720 USA.
EM SChoi@lbl.gov
FU Center for Nanoscale Mechatronics & Manufacturing (CNMM), one of the
21st Century Frontier Research Programs [2009K000069]; Ministry of
Education, Science and Technology, Korea; Samsung Scholarship Foundation
FX This work was supported by a grant (2009K000069) from the Center for
Nanoscale Mechatronics & Manufacturing (CNMM), one of the 21st Century
Frontier Research Programs, which are supported by Ministry of
Education, Science and Technology, Korea. We also acknowledge technical
support from Jeffrey Clarkson for measuring light intensity of optical
microscope in Berkeley Marvell Nanofabrication Laboratory. S. Choi also
gives thanks for his graduate fellowship from Samsung Scholarship
Foundation.
NR 63
TC 7
Z9 7
U1 4
U2 48
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0040-6090
J9 THIN SOLID FILMS
JI Thin Solid Films
PD JUN 30
PY 2013
VL 537
BP 180
EP 189
DI 10.1016/j.tsf.2013.04.047
PG 10
WC Materials Science, Multidisciplinary; Materials Science, Coatings &
Films; Physics, Applied; Physics, Condensed Matter
SC Materials Science; Physics
GA 151JK
UT WOS:000319456400028
ER
PT J
AU Van Berkel, GJ
Kertesz, V
AF Van Berkel, Gary J.
Kertesz, Vilmos
TI Continuous-flow liquid microjunction surface sampling probe connected
on-line with high-performance liquid chromatography/mass spectrometry
for spatially resolved analysis of small molecules and proteins
SO RAPID COMMUNICATIONS IN MASS SPECTROMETRY
LA English
DT Article
ID ELECTROSPRAY MASS-SPECTROMETRY; THIN TISSUE-SECTIONS; DRUG DISTRIBUTION;
SYSTEM; METABOLITES; DESORPTION; MS/MS; MS
AB RATIONALE A continuous-flow liquid microjunction surface sampling probe extracts soluble material from surfaces for direct ionization and detection by mass spectrometry. Demonstrated here is the on-line coupling of such a probe with high-performance liquid chromatography/mass spectrometry (HPLC/MS) enabling extraction, separation and detection of small molecules and proteins from surfaces in a spatially resolved (similar to 0.5 mm diameter spots) manner. METHODS A continuous-flow liquid microjunction surface sampling probe was connected to a six-port, two-position valve for extract collection and injection to an HPLC column. A QTRAP (R) 5500 hybrid triple quadrupole linear ion trap equipped with a Turbo V ion source operated in positive electrospray ionization (ESI) mode was used for all experiments. The system operation was tested with the extraction, separation and detection of propranolol and associated metabolites from drug dosed tissues, caffeine from a coffee bean, cocaine from paper currency, and proteins from dried sheep blood spots on paper. RESULTS Confirmed in the tissue were the parent drug and two different hydroxypropranolol glucuronides. The mass spectrometric response for these compounds from different locations in the liver showed an increase with increasing extraction time (5, 20 and 40 s). For on-line separation and detection/identification of extracted proteins from dried sheep blood spots, two major protein peaks dominated the chromatogram and could be correlated with the expected masses for the hemoglobin and chains. CONCLUSIONS Spatially resolved sampling, separation, and detection of small molecules and proteins from surfaces can be accomplished using a continuous-flow liquid microjunction surface sampling probe coupled on-line with HPLC/MS detection. Published in 2013. This article is a U.S. Government work and is in the public domain in the USA.
C1 [Van Berkel, Gary J.; Kertesz, Vilmos] Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Van Berkel, GJ (reprint author), Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM vanberkelgj@ornl.gov
RI Kertesz, Vilmos/M-8357-2016
OI Kertesz, Vilmos/0000-0003-0186-5797
FU AB Sciex [CRADA NFE-10-02966]; U.S. Department of Energy
[DE-AC05-00OR22725]; U.S. Government [DE-AC05-00OR22725]
FX This project was supported by AB Sciex through a Cooperative Research
and Development Agreement (CRADA NFE-10-02966). The QTRAP (R) 5500 used
in this work was provided on loan from AB Sciex as part of the CRADA.
Drs Jimmy Flarakos, Paul Moench and Alexandre Catoire (Novartis, East
Hanover, NJ, USA) are thanked for providing the whole-body rat thin
tissue sections through a Work for Others project with Novartis
Institutes for Biomedical Research, Inc. Drs Karuna Chourey and Greg
Hurst (Oak Ridge National Laboratory) are thanked for assisting with the
protein database search and identification. Dr Zhongqi Zhang (Amgen,
Inc.) is thanked for providing the MagTran software. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC for the U.S. Department of
Energy under contract DE-AC05-00OR22725. This manuscript has been
authored by a contractor of the U.S. Government under contract
DE-AC05-00OR22725. Accordingly, the U. S. Government retains a paid-up,
nonexclusive, irrevocable, worldwide license to publish or reproduce the
published form of this contribution, prepare derivative works,
distribute copies to the public, and perform publicly and display
publicly, or allow others to do so, for U.S. Government purposes.
NR 27
TC 24
Z9 24
U1 1
U2 63
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0951-4198
J9 RAPID COMMUN MASS SP
JI Rapid Commun. Mass Spectrom.
PD JUN 30
PY 2013
VL 27
IS 12
BP 1329
EP 1334
DI 10.1002/rcm.6580
PG 6
WC Biochemical Research Methods; Chemistry, Analytical; Spectroscopy
SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy
GA 146EH
UT WOS:000319071700006
PM 23681810
ER
PT J
AU Harribey, T
Breil, J
Maire, PH
Shashkov, M
AF Harribey, Thibault
Breil, Jerome
Maire, Pierre-Henri
Shashkov, Mikhail
TI A swept-intersection-based remapping method in a ReALE framework
SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
LA English
DT Article
DE ReALE; cell-centered scheme; Lagrangian hydrodynamics; Voronoi mesh;
polygonal mesh
AB A complete reconnection-based arbitrary LagrangianEulerian (ReALE) strategy devoted to the computation of hydrodynamic applications for compressible fluid flows is presented here. In ReALE, we replace the rezoning phase of classical ALE method by a rezoning where we allow the connectivity between cells of the mesh to change. This leads to a polygonal mesh that recovers the Lagrangian features in order to follow more efficiently the flow. Those reconnections allow to deal with complex geometries and high vorticity problems contrary to ALE method. For optimizing the remapping phase, we have modified the idea of swept-integration-based. The new method is called swept-intersection-based remapping method. We demonstrate that our method can be applied to several numerical examples representative of hydrodynamic experiments.Copyright (c) 2012 John Wiley & Sons, Ltd.
C1 [Harribey, Thibault; Breil, Jerome] Univ Bordeaux, CEA, CNRS, CELIA,UMR5107, F-33400 Talence, France.
[Maire, Pierre-Henri] CEA, CESTA, F-33114 Le Barp, France.
[Shashkov, Mikhail] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Breil, J (reprint author), Univ Bordeaux, CEA, CNRS, CELIA,UMR5107, F-33400 Talence, France.
EM breil@celia.ubordeaux1.fr
RI Maire, Pierre-Henri/H-6219-2013
OI Maire, Pierre-Henri/0000-0002-4180-8220
FU US Department of Energy's National Nuclear Security Administration by
Los Alamos National Security, LLC, at Los Alamos National Laboratory
[DE-AC52-06NA25396]; US DOE NNSA's Advanced Simulation and Computing
(ASC) Program; US DOE Office of Science Advanced Scientific Computing
Research (ASCR) Program in Applied Mathematics Research
FX The work of the last author was performed under the auspices of the US
Department of Energy's National Nuclear Security Administration by Los
Alamos National Security, LLC, at Los Alamos National Laboratory, under
contract DE-AC52-06NA25396. The last author gratefully acknowledges the
partial support of the US DOE NNSA's Advanced Simulation and Computing
(ASC) Program and the partial support of the US DOE Office of Science
Advanced Scientific Computing Research (ASCR) Program in Applied
Mathematics Research.
NR 11
TC 5
Z9 5
U1 0
U2 11
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0271-2091
J9 INT J NUMER METH FL
JI Int. J. Numer. Methods Fluids
PD JUN 30
PY 2013
VL 72
IS 6
BP 697
EP 708
DI 10.1002/fld.3763
PG 12
WC Computer Science, Interdisciplinary Applications; Mathematics,
Interdisciplinary Applications; Mechanics; Physics, Fluids & Plasmas
SC Computer Science; Mathematics; Mechanics; Physics
GA 139FI
UT WOS:000318566800005
ER
PT J
AU Murillo, MS
Weisheit, J
Hansen, SB
Dharma-wardana, MWC
AF Murillo, Michael S.
Weisheit, Jon
Hansen, Stephanie B.
Dharma-wardana, M. W. C.
TI Partial ionization in dense plasmas: Comparisons among average-atom
density functional models
SO PHYSICAL REVIEW E
LA English
DT Article
ID EQUATION-OF-STATE; STRONGLY COUPLED PLASMAS; CORRELATION POTENTIALS;
LIQUID-METALS; ELECTRON-GAS; ION-ION; X-RAY; PRESSURE IONIZATION; FINITE
TEMPERATURES; MOLECULAR-DYNAMICS
AB Nuclei interacting with electrons in dense plasmas acquire electronic bound states, modify continuum states, generate resonances and hopping electron states, and generate short-range ionic order. The mean ionization state (MIS), i.e, the mean charge Z of an average ion in such plasmas, is a valuable concept: Pseudopotentials, pair-distribution functions, equations of state, transport properties, energy-relaxation rates, opacity, radiative processes, etc., can all be formulated using the MIS of the plasma more concisely than with an all-electron description. However, the MIS does not have a unique definition and is used and defined differently in different statistical models of plasmas. Here, using the MIS formulations of several average-atom models based on density functional theory, we compare numerical results for Be, Al, and Cu plasmas for conditions inclusive of incomplete atomic ionization and partial electron degeneracy. By contrasting modern orbital-based models with orbital-free Thomas-Fermi models, we quantify the effects of shell structure, continuum resonances, the role of exchange and correlation, and the effects of different choices of the fundamental cell and boundary conditions. Finally, the role of the MIS in plasma applications is illustrated in the context of x-ray Thomson scattering in warm dense matter.
C1 [Murillo, Michael S.] Los Alamos Natl Lab, Computat Phys & Methods Grp, Los Alamos, NM 87545 USA.
[Weisheit, Jon] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Hansen, Stephanie B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hansen, Stephanie B.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Dharma-wardana, M. W. C.] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada.
RP Murillo, MS (reprint author), Los Alamos Natl Lab, Computat Phys & Methods Grp, POB 1663, Los Alamos, NM 87545 USA.
EM murillo@lanl.gov
FU Lawrence Livermore National Laboratory; US Department of Energy by
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Sandia, a
multiprogram laboratory; US Department of Energy [DE-AC04-94AL85000]
FX The work of M. S. M. was supported by a research contract to Los Alamos
National Laboratory from Lawrence Livermore National Laboratory. The
work of J.W. was supported by research contracts to the University of
Pittsburgh from Lawrence Livermore National Laboratory. The work of
M.S.M. and J.W. was part of the Cimarron Collaboration based at Lawrence
Livermore National Laboratory. The work of S. B. H. was performed in
part under the auspices of the US Department of Energy by Lawrence
Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and
supported in part by Sandia, a multiprogram laboratory operated by
Sandia Corporation, a Lockheed Martin Company, for the US Department of
Energy under Contract No. DE-AC04-94AL85000. We wish to thank several
colleagues for comments and advice received during the course of this
collaboration, including especially Brian Wilson and Stephen Libby.
Fianlly, we would also like to thank one of the anonymous referees for
greatly improving this manuscript.
NR 93
TC 27
Z9 27
U1 1
U2 26
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
EI 1550-2376
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 28
PY 2013
VL 87
IS 6
AR UNSP 063113
DI 10.1103/PhysRevE.87.063113
PG 19
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 173RG
UT WOS:000321096000011
PM 23848795
ER
PT J
AU Rekapalli, B
Giblock, P
Reardon, C
AF Rekapalli, Bhanu
Giblock, Paul
Reardon, Christopher
TI PoPLAR: Portal for Petascale Lifescience Applications and Research
SO BMC BIOINFORMATICS
LA English
DT Article
ID INFERENCE; PLATFORM; MRBAYES; SCIENCE; MODELS; BLAST
AB Background: We are focusing specifically on fast data analysis and retrieval in bioinformatics that will have a direct impact on the quality of human health and the environment. The exponential growth of data generated in biology research, from small atoms to big ecosystems, necessitates an increasingly large computational component to perform analyses. Novel DNA sequencing technologies and complementary high-throughput approaches-such as proteomics, genomics, metabolomics, and meta-genomics-drive data-intensive bioinformatics. While individual research centers or universities could once provide for these applications, this is no longer the case. Today, only specialized national centers can deliver the level of computing resources required to meet the challenges posed by rapid data growth and the resulting computational demand. Consequently, we are developing massively parallel applications to analyze the growing flood of biological data and contribute to the rapid discovery of novel knowledge.
Methods: The efforts of previous National Science Foundation (NSF) projects provided for the generation of parallel modules for widely used bioinformatics applications on the Kraken supercomputer. We have profiled and optimized the code of some of the scientific community's most widely used desktop and small-cluster-based applications, including BLAST from the National Center for Biotechnology Information (NCBI), HMMER, and MUSCLE; scaled them to tens of thousands of cores on high-performance computing (HPC) architectures; made them robust and portable to next-generation architectures; and incorporated these parallel applications in science gateways with a web-based portal.
Results: This paper will discuss the various developmental stages, challenges, and solutions involved in taking bioinformatics applications from the desktop to petascale with a front-end portal for very-large-scale data analysis in the life sciences.
Conclusions: This research will help to bridge the gap between the rate of data generation and the speed at which scientists can study this data. The ability to rapidly analyze data at such a large scale is having a significant, direct impact on science achieved by collaborators who are currently using these tools on supercomputers.
C1 [Rekapalli, Bhanu; Giblock, Paul; Reardon, Christopher] Univ Tennessee, Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA.
RP Rekapalli, B (reprint author), Univ Tennessee, Oak Ridge Natl Lab, Joint Inst Computat Sci, 1 Bethel Valley Rd,Bldg 5100, Oak Ridge, TN 37831 USA.
EM brekapal@utk.edu
FU National Science Foundation (NSF) [EPS-0919436, OCI-1053575]
FX This research used resources at the Joint Institute for Computational
Sciences; Extreme Science and Engineering Discovery Environment (XSEDE),
funded by the National Science Foundation (NSF); and also supported in
part by the NSF grants EPS-0919436 and OCI-1053575. We would like to
thank Mark Miller and Terri Schwartz for guidance during code
development, and also thank Suresh Marru for technical assistance in
adding the PoPLAR science gateway to XSEDE.
NR 30
TC 2
Z9 2
U1 3
U2 10
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2105
J9 BMC BIOINFORMATICS
JI BMC Bioinformatics
PD JUN 28
PY 2013
VL 14
SU 9
AR UNSP S3
DI 10.1186/1471-2105-14-S9-S3
PG 12
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
GA 184OM
UT WOS:000321901100003
PM 23902523
ER
PT J
AU Levander, AX
Yu, KM
Novikov, SV
Liliental-Weber, Z
Foxon, CT
Dubon, OD
Wu, J
Walukiewicz, W
AF Levander, A. X.
Yu, K. M.
Novikov, S. V.
Liliental-Weber, Z.
Foxon, C. T.
Dubon, O. D.
Wu, J.
Walukiewicz, W.
TI Local structure of amorphous GaN1-xAsx semiconductor alloys across the
composition range
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ABSORPTION FINE-STRUCTURE; RANDOM SOLID-SOLUTIONS; SOLAR-CELL; A-SI;
FILMS; BAND; SPECTROSCOPY; CRYSTALLINE; GA1-XINXAS; EXAFS
AB Typically only dilute (up to similar to 10%) highly mismatched alloys can be grown due to the large differences in atomic size and electronegativity of the host and the alloying elements. We have overcome the miscibility gap of the GaN1-xAsx system using low temperature molecular beam epitaxy. In the intermediate composition range (0.10 < x < 0.75), the resulting alloys are amorphous. To gain a better understanding of the amorphous structure, the local environment of the As and Ga atoms was investigated using extended x-ray absorption fine structure (EXAFS). The EXAFS analysis shows a high concentration of dangling bonds compared to the crystalline binary endpoint compounds of the alloy system. The disorder parameter was larger for amorphous films compared to crystalline references, but comparable with other amorphous semiconductors. By examining the Ga local environment, the dangling bond density and disorder associated with As-related and N-related bonds could be decoupled. The N-related bonds had a lower dangling bond density and lower disorder. (C) 2013 AIP Publishing LLC.
C1 [Levander, A. X.; Yu, K. M.; Liliental-Weber, Z.; Dubon, O. D.; Wu, J.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Levander, A. X.; Dubon, O. D.; Wu, J.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Novikov, S. V.; Foxon, C. T.] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England.
RP Walukiewicz, W (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM W_Walukiewicz@lbl.gov
RI Wu, Junqiao/G-7840-2011;
OI Wu, Junqiao/0000-0002-1498-0148; Yu, Kin Man/0000-0003-1350-9642;
Novikov, Sergei/0000-0002-3725-2565
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division of the U.S. DOE [DE-AC02-05CH11231]; EPSRC
[EP/I004203/1, EP/G046867/1, EP/G030634/1]; DOE Office of Biological and
Environmental Research; National Institutes of Health, National Center
for Research Resources, Biomedical Technology Program [P41RR001209]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division of
the U.S. DOE under Contract No. DE-AC02-05CH11231. The growth work at
the University of Nottingham was supported by the EPSRC (Grant Nos.
EP/I004203/1, EP/G046867/1, and EP/G030634/1). Portions of this research
were carried out at the Stanford Synchrotron Radiation Lightsource, a
Directorate of SLAC National Accelerator Laboratory and an Office of
Science User Facility operated for the U.S. Department of Energy Office
of Science by Stanford University. The SSRL Structural Molecular Biology
Program was supported by the DOE Office of Biological and Environmental
Research, and by the National Institutes of Health, National Center for
Research Resources, Biomedical Technology Program (P41RR001209).
NR 30
TC 4
Z9 4
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 28
PY 2013
VL 113
IS 24
AR 243505
DI 10.1063/1.4812277
PG 6
WC Physics, Applied
SC Physics
GA 174HY
UT WOS:000321147300013
ER
PT J
AU Nittala, K
Mhin, S
Dunnigan, KM
Robinson, DS
Ihlefeld, JF
Kotula, PG
Brennecka, GL
Jones, JL
AF Nittala, Krishna
Mhin, Sungwook
Dunnigan, Katherine M.
Robinson, Douglas S.
Ihlefeld, Jon F.
Kotula, Paul G.
Brennecka, Geoff L.
Jones, Jacob L.
TI Phase and texture evolution in solution deposited lead zirconate
titanate thin films: Formation and role of the Pt3Pb intermetallic phase
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CHEMICAL SOLUTION DEPOSITION; CAPACITOR APPLICATIONS; CRYSTALLIZATION;
PZT; TRANSFORMATION; DIFFRACTION; PYROCHLORE; TRANSITION; SILICON;
LAYERS
AB Solution deposition is widely used for the fabrication of lead zirconate titanate (PZT) thin films on platinized silicon substrates. However, phase and texture evolution during the crystallization process is not well understood, particularly due to the difficulty in tracking changes in the thin films in situ during heating. In this work, we characterized phase and texture evolution in situ during heating and crystallization of PZT thin films using high-energy X-ray diffraction. Films were pyrolyzed at either 300 degrees C or 400 degrees C and heated at various rates between 0.5 degrees C/s and similar to 150 degrees C/s. For films that were pyrolyzed at 300 degrees C, the most rapid heating rates first induced strong intensities from a transient Pt3Pb phase. The Pt3Pb phase inherited the texture of the pre-existing platinum layer. Combined with other observations, the results suggest the conversion of the platinum to the intermetallic phase near the interface due to the interdiffusion of lead. In all experimental variations, the pyrochlore phase was observed to form concurrently with the disappearance of the Pt3Pb phase after which the perovskite phase ultimately crystallized. For films that were pyrolyzed at 400 degrees C, the Pt3Pb phase was not observed at any of the heating rates; instead, the pyrochlore phase was first observed, followed by the perovskite phase. Independent of the pyrolysis temperature or observation of Pt3Pb, a 111-dominant crystallographic texture formed in the perovskite phase when crystallized using fast heating rates. These results demonstrate that 111 textures in solution-derived PZT thin films are not correlated with the observation of Pt3Pb or other intermetallic or transient phases. (C) 2013 AIP Publishing LLC.
C1 [Nittala, Krishna; Mhin, Sungwook; Dunnigan, Katherine M.; Jones, Jacob L.] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
[Robinson, Douglas S.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Ihlefeld, Jon F.; Kotula, Paul G.; Brennecka, Geoff L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Jones, JL (reprint author), Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
EM jacob_jones@ncsu.edu
RI Ihlefeld, Jon/B-3117-2009; Kotula, Paul/A-7657-2011; Brennecka,
Geoff/J-9367-2012
OI Kotula, Paul/0000-0002-7521-2759; Brennecka, Geoff/0000-0002-4476-7655
FU National Institute of NanoEngineering (NINE); Laboratory Directed
Research and Development programs at Sandia; United States Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000];
U.S. DOE [DE-AC02-06CH11357]; U.S. National Science Foundation
[DMR-1207293]
FX This work was supported by the National Institute of NanoEngineering
(NINE) and Laboratory Directed Research and Development programs at
Sandia. Sandia National Laboratories is a multiprogram laboratory
managed and operated by Sandia Corporation, a wholly owned subsidiary of
Lockheed Martin Company, for the United States Department of Energy's
National Nuclear Security Administration under Contract No.
DE-AC04-94AL85000. Use of the Advanced Photon Source, an Office of
Science User Facility operated for the U.S. Department of Energy (DOE)
Office of Science by Argonne National Laboratory, was supported by the
U.S. DOE under Contract No. DE-AC02-06CH11357. Jones and Mhin
acknowledge partial support for this work from the U.S. National Science
Foundation through Award No. DMR-1207293.
NR 33
TC 12
Z9 12
U1 0
U2 33
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 28
PY 2013
VL 113
IS 24
AR 244101
DI 10.1063/1.4811687
PG 11
WC Physics, Applied
SC Physics
GA 174HY
UT WOS:000321147300023
ER
PT J
AU Gleason, AE
Mao, WL
Zhao, JY
AF Gleason, A. E.
Mao, W. L.
Zhao, J. Y.
TI Sound velocities for hexagonally close-packed iron compressed
hydrostatically to 136GPa from phonon density of states
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE sound velocity; NRIXS; hydrostatic; hcp-iron
ID EARTHS INNER-CORE; HIGH-PRESSURE; LIGHT-ELEMENTS; BIRCHS LAW; HCP-IRON;
GPA; FE; DIFFRACTION; GIGAPASCALS; ELASTICITY
AB The phonon density of states of pure iron (Fe-57) was measured under hydrostatic conditions using nuclear resonant inelastic X-ray scattering (NRIXS) at pressures up to 136GPa. Extracting shear (V-s) and compressional (V-p) wave speeds from the Debye velocity and equation of state, we find the hydrostatic shear wave speed trend above previously collected NRIXS data under nonhydrostatic conditions by roughly 5%-6% in the measured pressure range. Using the Birch Murnaghan finite strain approach to fit pressure-dependent adiabatic bulk and shear moduli, we extrapolated our velocities to inner Earth core densities and found that our shear wave speeds are 3% higher than those in previous studies. Our results on pure iron provide a more accurate and precise baseline to which added complications (e.g., Ni concentration, inclusion of various light elements, and temperature effects) can be considered when comparing experimental elasticity measurements to inner core seismic data.
C1 [Gleason, A. E.; Mao, W. L.] Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA.
[Mao, W. L.] SLAC Natl Accelerator Lab, Dept Photon Sci, Menlo Pk, CA USA.
[Zhao, J. Y.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Gleason, AE (reprint author), Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA.
EM ariannag@stanford.edu
RI Mao, Wendy/D-1885-2009
FU Geophysics Program at NSF [EAR0738873]; Office of Basic Energy Sciences
of the U.S. Department of Energy; NSF Division of Materials Research
[DE-AC02-06CH11357, W-31-109-Eng-38]; Office of Basic Energy Sciences,
U.S. Dept. of Energy [DE-AC02-05CH11231]; COMPRES through NSF
FX A.E.G. and W. L. M. were supported by the Geophysics Program at NSF
(EAR0738873). Portions of this work were performed at Sectors 16-ID-D,
16-BM-D, and 3-ID-B within XOR, Advanced Photon Source, ANL, supported
by the Office of Basic Energy Sciences of the U.S. Department of Energy
and by NSF Division of Materials Research under DE-AC02-06CH11357 and
W-31-109-Eng-38. Beamline 12.2.2 of the Advanced Light Source, LBNL, is
supported by the Office of Basic Energy Sciences, U.S. Dept. of Energy,
under DE-AC02-05CH11231 and in part by COMPRES through NSF. The authors
are grateful for helpful discussion and assistance from H.-K. Mao
(Geophysical Laboratory), L. Gao (APS), and J.-F. Shu (Geophysical
Laboratory). The authors thank two anonymous reviewers for their
comments.
NR 45
TC 5
Z9 6
U1 2
U2 30
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 28
PY 2013
VL 40
IS 12
BP 2983
EP 2987
DI 10.1002/grl.50588
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 185FJ
UT WOS:000321951300019
ER
PT J
AU Ben-Naim, E
Daub, EG
Johnson, PA
AF Ben-Naim, E.
Daub, E. G.
Johnson, P. A.
TI Recurrence statistics of great earthquakes
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE earthquake clustering; statistical seismology; earthquake hazard
ID CALIFORNIA; SEQUENCE
AB We investigate the sequence of great earthquakes over the past century. To examine whether the earthquake record includes temporal clustering, we identify aftershocks and remove those from the record. We focus on the recurrence time, defined as the time between two consecutive earthquakes. We study the variance in the recurrence time and the maximal recurrence time. Using these quantities, we compare the earthquake record with sequences of random events, generated by numerical simulations, while systematically varying the minimal earthquake magnitude M-min. Our analysis shows that the earthquake record is consistent with a random process for magnitude thresholds 7.0M(min)8.3, where the number of events is larger. Interestingly, the earthquake record deviates from a random process at magnitude threshold 8.4M(min)8.5, where the number of events is smaller; however, this deviation is not strong enough to conclude that great earthquakes are clustered. Overall, the findings are robust both qualitatively and quantitatively as statistics of extreme values and moment analysis yield remarkably similar results.
C1 [Ben-Naim, E.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA.
[Ben-Naim, E.; Daub, E. G.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87544 USA.
[Daub, E. G.; Johnson, P. A.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Daub, E. G.] Univ Grenoble 1, Inst Sci Terre, Grenoble, France.
RP Ben-Naim, E (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA.
EM ebn@lanl.gov
RI Ben-Naim, Eli/C-7542-2009;
OI Ben-Naim, Eli/0000-0002-2444-7304; Johnson, Paul/0000-0002-0927-4003
FU DOE [DE-AC52-06NA25396]
FX We thank Robert Guyer, Robert Ecke, Joan Gomberg, and Thorne Lay for
comments. We gratefully acknowledge support for this research through
DOE grant DE-AC52-06NA25396.
NR 22
TC 6
Z9 6
U1 3
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 28
PY 2013
VL 40
IS 12
BP 3021
EP 3025
DI 10.1002/grl.50605
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 185FJ
UT WOS:000321951300026
ER
PT J
AU Kassianov, E
Barnard, J
Pekour, M
Berg, LK
Michalsky, J
Lantz, K
Hodges, G
AF Kassianov, Evgueni
Barnard, James
Pekour, Mikhail
Berg, Larry K.
Michalsky, Joseph
Lantz, Kathy
Hodges, Gary
TI Do diurnal aerosol changes affect daily average radiative forcing?
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE diurnal variability of aerosol; remote sensing; time-averaged direct
aerosol radiative forcing; Two-Column Aerosol Project (TCAP)
ID VARIABILITY; ATMOSPHERE
AB Strong diurnal variability of aerosol has been observed frequently for many urban/industrial regions. How this variability may alter the direct aerosol radiative forcing (DARF), however, is largely unknown. To quantify changes in the time-averaged DARF, we perform an assessment of 29days of high temporal resolution ground-based data collected during the Two-Column Aerosol Project on Cape Cod, which is downwind of metropolitan areas. We demonstrate that strong diurnal changes of aerosol loading (about 20% on average) have a negligible impact on the 24-h average DARF when daily averaged optical properties are used to find this quantity. However, when there is a sparse temporal sampling of aerosol properties, which may preclude the calculation of daily averaged optical properties, large errors (up to 100%) in the computed DARF may occur. We describe a simple way of reducing these errors, which suggests the minimal temporal sampling needed to accurately find the forcing.
C1 [Kassianov, Evgueni; Barnard, James; Pekour, Mikhail; Berg, Larry K.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
[Michalsky, Joseph] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Lantz, Kathy; Hodges, Gary] Univ Colorado Boulder, CIRES, Boulder, CO USA.
RP Kassianov, E (reprint author), Pacific NW Natl Lab, Atmospher Sci & Global Change Div, POB 999,MSIN K9-24, Richland, WA 99352 USA.
EM Evgueni.Kassianov@pnnl.gov
RI Berg, Larry/A-7468-2016
OI Berg, Larry/0000-0002-3362-9492
FU Office of Biological and Environmental Research (OBER) of the U.S.
Department of Energy (DOE); DOE [DE-A06-76RLO 1830]; NOAA GOES-R Cal/Val
Activities within NOAA's National Environmental Satellite, Data, and
Information Service
FX This work has been supported by the Office of Biological and
Environmental Research (OBER) of the U.S. Department of Energy (DOE) as
part of the Atmospheric Radiation Measurement (ARM) and Atmospheric
System Research (ASR) Programs. The Pacific Northwest National
Laboratory (PNNL) is operated by Battelle for the DOE under contract
DE-A06-76RLO 1830. The MFRSR-NOAA measurements were supported by NOAA
GOES-R Cal/Val Activities within NOAA's National Environmental
Satellite, Data, and Information Service. The authors thank one
anonymous reviewer for his/her comments.
NR 20
TC 10
Z9 10
U1 4
U2 14
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 28
PY 2013
VL 40
IS 12
BP 3265
EP 3269
DI 10.1002/grl.50567
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 185FJ
UT WOS:000321951300069
ER
PT J
AU Zhang, L
Kok, JF
Henze, DK
Li, QB
Zhao, C
AF Zhang, Li
Kok, Jasper F.
Henze, Daven K.
Li, Qinbin
Zhao, Chun
TI Improving simulations of fine dust surface concentrations over the
western United States by optimizing the particle size distribution
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE fine dust; particle size distribution; GEOS-Chem
ID MINERAL DUST; GOCART MODEL; SEA-SALT; AEROSOLS; IMPACT; EMISSIONS;
TRANSPORT; POLLUTION; SULFATE; TRENDS
AB To improve estimates of remote contributions of dust to fine particulate matter (PM2.5) in the western United States, new dust particle size distributions (PSDs) based upon scale-invariant fragmentation theory (Kok_PSD) with constraints from in situ measurements (IMP_PSD) are implemented in a chemical transport model (GEOS-Chem). Compared to initial simulations, this leads to reductions in the mass of emitted dust particles with radii <1.8 mu m by 40%-60%. Consequently, the root-mean-square error in simulated fine dust concentrations compared to springtime surface observations in the western United States is reduced by 67%-81%. The ratio of simulated fine to coarse PM mass is also improved, which is not achievable by reductions in total dust emissions. The IMP_PSD best represents the PSD of dust transported from remote sources and reduces modeled PM2.5 concentrations up to 5 mu g/m(3) over the western United States, which is important when considering sources contributing to nonattainment of air quality standards.
C1 [Zhang, Li; Henze, Daven K.] Univ Colorado, Dept Chem Engn, Boulder, CO 80309 USA.
[Zhang, Li; Li, Qinbin] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA.
[Kok, Jasper F.] Cornell Univ, Dept Earth & Atmospher Sci, Ithaca, NY USA.
[Zhao, Chun] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
RP Zhang, L (reprint author), Univ Colorado, Dept Chem Engn, 1111 Engn Dr,ECME 114, Boulder, CO 80309 USA.
EM li.zhang@colorado.edu
RI Chem, GEOS/C-5595-2014; Zhao, Chun/A-2581-2012; Kok, Jasper/A-9698-2008;
ZHANG, LI/C-6743-2015
OI Zhao, Chun/0000-0003-4693-7213; Kok, Jasper/0000-0003-0464-8325;
FU EPA-STAR [RD-83503701-0]; NSF [AGS 1137716]; U.S. Department of Energy
FX L. Zhang and D. K. Henze recognize support from EPA-STAR grant
RD-83503701-0. J. F. Kok was supported by NSF grant AGS 1137716. C. Zhao
was partially supported by the Earth System Modeling Program of the U.
S. Department of Energy in scope of the project "Investigations on the
Magnitude and Probabilities of Abrupt Climate Transitions."
NR 34
TC 12
Z9 12
U1 2
U2 24
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 28
PY 2013
VL 40
IS 12
BP 3270
EP 3275
DI 10.1002/grl.50591
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 185FJ
UT WOS:000321951300070
ER
PT J
AU Gu, L
Liu, C
Guo, ZF
AF Gu, Lei
Liu, Cong
Guo, Zhefeng
TI Structural Insights into A beta 42 Oligomers Using Site-directed Spin
Labeling
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID AMYLOID-BETA-PROTEIN; ALZHEIMERS-DISEASE; AGGREGATION BEHAVIOR;
SIDE-CHAINS; SHEET; PEPTIDE; FIBRILS; MOTION; SPECTROSCOPY; EPR
AB Oligomerization of the 42-residue peptide A beta 42 plays a key role in the pathogenesis of Alzheimer disease. Despite great academic and medical interest, the structures of these oligomers have not been well characterized. Site-directed spin labeling combined with electron paramagnetic resonance spectroscopy is a powerful approach for studying structurally ill-defined systems, but its application in amyloid oligomer structure study has not been systematically explored. Here we report a comprehensive structural study on a toxic A beta 42 oligomer, called globulomer, using site-directed spin labeling complemented by other techniques. Transmission electron microscopy shows that these oligomers are globular structures with diameters of similar to 7-8 nm. Circular dichroism shows primarily beta-structures. X-ray powder diffraction suggests a highly ordered intrasheet hydrogen-bonding network and a heterogeneous intersheet packing. Residue-level mobility analysis on spin labels introduced at 14 different positions shows a structured state and a disordered state at all labeling sites. Side chain mobility analysis suggests that structural order increases from N- to C-terminal regions. Intermolecular distance measurements at 14 residue positions suggest that C-terminal residues Gly-29-Val-40 form a tightly packed core with intermolecular distances in a narrow range of 11.5-12.5 angstrom. These intermolecular distances rule out the existence of fibril-like parallel in-register beta-structures and strongly suggest an antiparallel beta-sheet arrangement in A beta 42 globulomers.
C1 [Gu, Lei; Guo, Zhefeng] Univ Calif Los Angeles, Dept Neurol, Brain Res Inst, Inst Mol Biol, Los Angeles, CA 90095 USA.
[Liu, Cong] Univ Calif Los Angeles, UCLA DOE Inst Genom & Prote, Los Angeles, CA 90095 USA.
RP Guo, ZF (reprint author), Univ Calif Los Angeles, Dept Neurol, 710 Westwood Plaza, Los Angeles, CA 90095 USA.
EM zhefeng@ucla.edu
RI Guo, Zhefeng/A-2069-2013
FU Alzheimer's Association [NIRG-09-133555]; American Health Assistance
Foundation [A2010362]
FX This work was supported by the Alzheimer's Association (Grant
NIRG-09-133555) and American Health Assistance Foundation (Grant
A2010362).
NR 59
TC 19
Z9 22
U1 1
U2 25
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JUN 28
PY 2013
VL 288
IS 26
BP 18673
EP 18683
DI 10.1074/jbc.M113.457739
PG 11
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 176WB
UT WOS:000321335800004
PM 23687299
ER
PT J
AU Johnson, LM
Gao, L
Shields, CW
Smith, M
Efimenko, K
Cushing, K
Genzer, J
Lopez, GP
AF Johnson, Leah M.
Gao, Lu
Shields, C. Wyatt
Smith, Margret
Efimenko, Kirill
Cushing, Kevin
Genzer, Jan
Lopez, Gabriel P.
TI Elastomeric microparticles for acoustic mediated bioseparations
SO JOURNAL OF NANOBIOTECHNOLOGY
LA English
DT Article
DE Cell separation; Continuous cell sorting; Acoustofluidics; Particle
synthesis; Ultrasound standing wave
ID MICROFLUIDIC CHANNELS; POLY(DIMETHYLSILOXANE); SEPARATION; PARTICLES;
FLOW; ACOUSTOPHORESIS; MICROCHANNELS; CELLS
AB Background: Acoustophoresis has been utilized successfully in applications including cell trapping, focusing, and purification. One current limitation of acoustophoresis for cell sorting is the reliance on the inherent physical properties of cells (e.g., compressibility, density) instead of selecting cells based upon biologically relevant surface-presenting antigens. Introducing an acoustophoretic cell sorting approach that allows biochemical specificity may overcome this limitation, thus advancing the value of acoustophoresis approaches for both the basic research and clinical fields.
Results: The results presented herein demonstrate the ability for negative acoustic contrast particles (NACPs) to specifically capture and transport positive acoustic contrast particles (PACPs) to the antinode of an ultrasound standing wave. Emulsification and post curing of pre-polymers, either polydimethylsiloxane (PDMS) or polyvinylmethylsiloxane (PVMS), within aqueous surfactant solution results in the formation of stable NACPs that focus onto pressure antinodes. We used either photochemical reactions with biotin-tetrafluorophenyl azide (biotin-TFPA) or end-functionalization of Pluronic F108 surfactant to biofunctionalize NACPs. These biotinylated NACPs bind specifically to streptavidin polystyrene microparticles (as cell surrogates) and transport them to the pressure antinode within an acoustofluidic chip.
Conclusion: To the best of our knowledge, this is the first demonstration of using NACPs as carriers for transport of PACPs in an ultrasound standing wave. By using different silicones (i.e., PDMS, PVMS) and curing chemistries, we demonstrate versatility of silicone materials for NACPs and advance the understanding of useful approaches for preparing NACPs. This bioseparation scheme holds potential for applications requiring rapid, continuous separations such as sorting and analysis of cells and biomolecules.
C1 [Johnson, Leah M.; Shields, C. Wyatt; Smith, Margret; Lopez, Gabriel P.] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA.
[Gao, Lu; Lopez, Gabriel P.] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
[Gao, Lu; Shields, C. Wyatt; Genzer, Jan; Lopez, Gabriel P.] Duke Univ, NSF Res Triangle Mat Res Sci & Engn Ctr, Durham, NC 27708 USA.
[Efimenko, Kirill; Genzer, Jan] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA.
[Cushing, Kevin; Lopez, Gabriel P.] Univ New Mexico, Ctr Biomed Engn, Albuquerque, NM 87131 USA.
[Cushing, Kevin] Los Alamos Natl Lab, Natl Flow Cytometry Resource, Los Alamos, NM 87545 USA.
RP Lopez, GP (reprint author), Duke Univ, Dept Biomed Engn, 101 Sci Dr,3361 CIEMAS, Durham, NC 27708 USA.
EM gabriel.lopez@duke.edu
FU National Science Foundation (NSF, through the Research Triangle MRSEC)
[DMR-1121107, CBET-10-50176]; NSF Graduate Research Fellowship [1106401]
FX This work was supported by the National Science Foundation (NSF, through
the Research Triangle MRSEC: DMR-1121107 and CBET-10-50176). LMJ thanks
The Hartwell Foundation (Biomedical Research Fellowship) and CWS is
grateful for a NSF Graduate Research Fellowship (1106401). MS thanks the
Pratt Research Fellows program at Duke University. KC thanks the
National Institutes of Health (NIH RR020064, NIH RR001315). We thank
Zijian Zhou at Duke University for the images of the acoustofluidic
chip.
NR 22
TC 16
Z9 16
U1 9
U2 57
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1477-3155
J9 J NANOBIOTECHNOL
JI J. Nanobiotechnol.
PD JUN 28
PY 2013
VL 11
AR 22
DI 10.1186/1477-3155-11-22
PG 8
WC Biotechnology & Applied Microbiology; Nanoscience & Nanotechnology
SC Biotechnology & Applied Microbiology; Science & Technology - Other
Topics
GA 180FI
UT WOS:000321578600003
PM 23809852
ER
PT J
AU Eudes, A
Juminaga, D
Baidoo, EEK
Collins, FW
Keasling, JD
Loque, D
AF Eudes, Aymerick
Juminaga, Darmawi
Baidoo, Edward E. K.
Collins, F. William
Keasling, Jay D.
Loque, Dominique
TI Production of hydroxycinnamoyl anthranilates from glucose in Escherichia
coli
SO MICROBIAL CELL FACTORIES
LA English
DT Article
DE Avenanthramide; Tranilast; BAHD; Antioxidant; Anti-inflammatory;
Tyrosine; Anthranilate; Hydroxycinnamate; Biological synthesis;
Escherichia coli
ID L-TYROSINE PRODUCTION; DIABETIC CARDIOMYOPATHY; 4-COUMARATE-COA LIGASE;
ANTIALLERGIC DRUG; CAFFEIC ACID; GENE FAMILY; IN-VITRO; AVENANTHRAMIDES;
OATS; BIOSYNTHESIS
AB Background: Oats contain hydroxycinnamoyl anthranilates, also named avenanthramides (Avn), which have beneficial health properties because of their antioxidant, anti-inflammatory, and antiproliferative effects. The microbial production of hydroxycinnamoyl anthranilates is an eco-friendly alternative to chemical synthesis or purification from plant sources. We recently demonstrated in yeast (Saccharomyces cerevisiae) that coexpression of 4-coumarate: CoA ligase (4CL) from Arabidopsis thaliana and hydroxycinnamoyl/benzoyl-CoA/anthranilate N-hydroxycinnamoyl/benzoyltransferase (HCBT) from Dianthus caryophyllusenabled the biological production of several cinnamoyl anthranilates upon feeding with anthranilate and various cinnamates. Using engineering strategies to overproduce anthranilate and hydroxycinnamates, we describe here an entire pathway for the microbial synthesis of two Avns from glucose in Escherichia coli.
Results: We first showed that coexpression of HCBT and Nt4CL1 from tobacco in the E. coli anthranilate-accumulating strain W3110 trpD9923 allowed the production of Avn D [N-(4'-hydroxycinnamoyl)-anthranilic acid] and Avn F [N-(3',4'-dihydroxycinnamoyl)-anthranilic acid] upon feeding with p-coumarate and caffeate, respectively. Moreover, additional expression in this strain of a tyrosine ammonia-lyase from Rhodotorula glutinis (RgTAL) led to the conversion of endogenous tyrosine into p-coumarate and resulted in the production of Avn D from glucose. Second, a 135-fold improvement in Avn D titer was achieved by boosting tyrosine production using two plasmids that express the eleven genes necessary for tyrosine synthesis from erythrose 4-phosphate and phosphoenolpyruvate. Finally, expression of either the p-coumarate 3-hydroxylase Sam5 from Saccharothrix espanensis or the hydroxylase complex HpaBC from E. coli resulted in the endogenous production of caffeate and biosynthesis of Avn F.
Conclusion: We established a biosynthetic pathway for the microbial production of valuable hydroxycinnamoyl anthranilates from an inexpensive carbon source. The proposed pathway will serve as a platform for further engineering toward economical and sustainable bioproduction of these pharmaceuticals and other related aromatic compounds.
C1 [Eudes, Aymerick; Juminaga, Darmawi; Baidoo, Edward E. K.; Keasling, Jay D.; Loque, Dominique] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Eudes, Aymerick; Keasling, Jay D.; Loque, Dominique] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Juminaga, Darmawi; Keasling, Jay D.] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Juminaga, Darmawi; Keasling, Jay D.] Univ Calif Berkeley, Synthet Biol Inst, Berkeley, CA 94720 USA.
[Collins, F. William] Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C5, Canada.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
RP Loque, D (reprint author), Joint BioEnergy Inst, Emeryville, CA 94608 USA.
EM dloque@lbl.gov
RI Keasling, Jay/J-9162-2012; Loque, Dominique/A-8153-2008
OI Keasling, Jay/0000-0003-4170-6088;
FU Amyris; LS9; Lygos; Afingen; U. S. Department of Energy, Office of
Science, Office of Biological and Environmental Research
[DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory; U.S.
Department of Energy
FX JDK has financial conflicts of interest in Amyris, LS9, and Lygos. DL
has financial conflicts of interest in Afingen.; Authors are thankful to
Dr. Carsten Rautengarten for providing the Nt4CL1 cDNA clone and Sabin
Russell for language editing of the manuscript. This work was part of
the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the
U. S. Department of Energy, Office of Science, Office of Biological and
Environmental Research, through contract DE-AC02-05CH11231 between
Lawrence Berkeley National Laboratory and the U.S. Department of Energy.
NR 63
TC 12
Z9 13
U1 2
U2 36
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1475-2859
J9 MICROB CELL FACT
JI Microb. Cell. Fact.
PD JUN 28
PY 2013
VL 12
AR 62
DI 10.1186/1475-2859-12-62
PG 10
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 183YI
UT WOS:000321852800001
PM 23806124
ER
PT J
AU Abdel-Naby, SA
Ciappina, MF
Pindzola, MS
Colgan, J
AF Abdel-Naby, Sh. A.
Ciappina, M. F.
Pindzola, M. S.
Colgan, J.
TI Nuclear-recoil differential cross sections for the two-photon double
ionization of helium
SO PHYSICAL REVIEW A
LA English
DT Article
ID DOUBLE PHOTOIONIZATION; PERTURBATION-THEORY; HE
AB The time-dependent close-coupling method is used to calculate fully differential cross sections for the two-photon double ionization of the He(1s(2) S-1(e)) ground state at a photon energy of 44 eV and the He(1s2s S-1,3(e)) excited states at a photon energy of 34 eV. The total and triple-differential cross sections for the ground state are in good agreement with available calculations. We also used the time-dependent close-coupling method to calculate fully differential nuclear-recoil cross sections of He2+ for the two-photon double ionization of He in the ground and excited states at the same photon energies. The nuclear-recoil differential cross sections of He2+ for the ground state are in good agreement with the measurements recorded with a reaction microscope at the free-electron laser facility in Hamburg (FLASH).
C1 [Abdel-Naby, Sh. A.; Ciappina, M. F.; Pindzola, M. S.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Abdel-Naby, Sh. A.] Beni Suef Univ, Dept Phys, Bani Suwayf, Egypt.
[Colgan, J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Abdel-Naby, SA (reprint author), Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
RI Abdel-Naby, Shahin/G-1295-2014;
OI Abdel-Naby, Shahin/0000-0002-9268-3587; Ciappina,
Marcelo/0000-0002-1123-6460; Colgan, James/0000-0003-1045-3858
FU US Department of Energy; US National Science Foundation
FX This work was supported in part by grants from the US Department of
Energy and the US National Science Foundation. Computational work was
carried out at the National Energy Research Scientific Computing Center
in Oakland, California, the National Institute for Computational
Sciences in Knoxville, Tennessee, and the Oak Ridge Leadership Computing
Facility in Oak Ridge, Tennessee.
NR 47
TC 7
Z9 7
U1 0
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 28
PY 2013
VL 87
IS 6
AR 063425
DI 10.1103/PhysRevA.87.063425
PG 12
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 173AH
UT WOS:000321049200005
ER
PT J
AU Akers, C
Laird, AM
Fulton, BR
Ruiz, C
Bardayan, DW
Buchmann, L
Christian, G
Davids, B
Erikson, L
Fallis, J
Hager, U
Hutcheon, D
Martin, L
Murphy, AS
Nelson, K
Spyrou, A
Stanford, C
Ottewell, D
Rojas, A
AF Akers, C.
Laird, A. M.
Fulton, B. R.
Ruiz, C.
Bardayan, D. W.
Buchmann, L.
Christian, G.
Davids, B.
Erikson, L.
Fallis, J.
Hager, U.
Hutcheon, D.
Martin, L.
Murphy, A. St. J.
Nelson, K.
Spyrou, A.
Stanford, C.
Ottewell, D.
Rojas, A.
TI Measurement of Radiative Proton Capture on F-18 and Implications for
Oxygen-Neon Novae
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID REACTION-RATES; CLASSICAL NOVAE; ISAC
AB The rate of the F-18(p, gamma)Ne-19 reaction affects the final abundance of the gamma-ray observable radioisotope F-18, produced in novae. However, no successful measurement of this reaction exists and the rate used is calculated from incomplete information on the contributing resonances. Of the two resonances thought to play a significant role, one has a radiative width estimated from the assumed analogue state in the mirror nucleus, F-19. The second does not have an analogue state assignment at all, resulting in an arbitrary radiative width being assumed. Here, we report the first successful direct measurement of the F-18(p, gamma)Ne-19 reaction. The strength of the 665 keV resonance (E-x = 7.076 MeV) is found to be over an order of magnitude weaker than currently assumed in nova models. Reaction rate calculations show that this resonance therefore plays no significant role in the destruction of F-18 at any astrophysical energy.
C1 [Akers, C.; Ruiz, C.; Buchmann, L.; Christian, G.; Davids, B.; Fallis, J.; Hutcheon, D.; Martin, L.; Ottewell, D.; Rojas, A.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Akers, C.; Laird, A. M.; Fulton, B. R.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
[Bardayan, D. W.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Erikson, L.] Pacific Northwest Natl Lab, Richland, WA 99354 USA.
[Hager, U.] Colorado Sch Mines, Golden, CO 80401 USA.
[Murphy, A. St. J.] Univ Edinburgh, SUPA, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Nelson, K.] McMaster Univ, Hamilton, ON L8S 4L8, Canada.
[Spyrou, A.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Spyrou, A.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Stanford, C.] Univ Waterloo, Waterloo, ON N2L 3G1, Canada.
RP Akers, C (reprint author), TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada.
RI Hager, Ulrike/O-1738-2016
FU Science and Technology Funding Council; National Science Foundation [PHY
11-02511, PHY 08-22648]
FX The authors would like to thank the beam delivery and ISAC operations
groups at TRIUMF and the Natural Sciences & Engineering Research Council
of Canada. The UK authors would like to acknowledge the support of the
Science and Technology Funding Council. A. S. was supported by the
National Science Foundation under Grants No. PHY 11-02511 and No. PHY
08-22648 (Joint Institute for Nuclear Astrophysics). We are also
extremely grateful for the invaluable assistance in beam production from
Marik Dombsky and Pierre Bricault. Anuj Parikh and Jordi Jose also
provided the authors with valuable correspondence. Lastly, thanks to
Richard deBoer and the other AZURE developers for giving the authors
access to their R-Matrix minimization code.
NR 27
TC 12
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U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 28
PY 2013
VL 110
IS 26
AR 262502
DI 10.1103/PhysRevLett.110.262502
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 173SC
UT WOS:000321098200006
PM 23848867
ER
PT J
AU Bortolon, A
Heidbrink, WW
Kramer, GJ
Park, JK
Fredrickson, ED
Lore, JD
Podesta, M
AF Bortolon, A.
Heidbrink, W. W.
Kramer, G. J.
Park, J. -K.
Fredrickson, E. D.
Lore, J. D.
Podesta, M.
TI Mitigation of Alfven Activity in a Tokamak by Externally Applied Static
3D Fields
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB The application of static magnetic field perturbations to a tokamak plasma is observed to alter the dynamics of high-frequency bursting Alfven modes that are driven unstable by energetic ions. In response to perturbations with an amplitude of delta B/B similar to 0.01 at the plasma boundary, the mode amplitude is reduced, the bursting frequency is increased, and the frequency chirp is smaller. For modes of weaker bursting character, the magnetic perturbation induces a temporary transition to a saturated continuous mode. Calculations of the perturbed distribution function indicate that the 3D perturbation affects the orbits of fast ions that resonate with the bursting modes. The experimental evidence represents an important demonstration of the possibility of controlling fast-ion instabilities through "phase-space engineering" of the fast-ion distribution function, by means of externally applied perturbation fields.
C1 [Bortolon, A.; Heidbrink, W. W.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Bortolon, A.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA.
[Kramer, G. J.; Park, J. -K.; Fredrickson, E. D.; Podesta, M.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Lore, J. D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Bortolon, A (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
EM abortolon@pppl.gov
RI Bortolon, Alessandro/H-5764-2015;
OI Bortolon, Alessandro/0000-0002-0094-0209; Lore,
Jeremy/0000-0002-9192-465X
FU US DOE [DE-FG02-06ER54867, DE-AC02-09CH11466, DOE-DE-SC0008309]
FX The authors thank the NSTX team for their support. This work was
supported by the US DOE (Contracts No. DE-FG02-06ER54867, No.
DE-AC02-09CH11466, and No. DOE-DE-SC0008309).
NR 18
TC 10
Z9 10
U1 0
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 28
PY 2013
VL 110
IS 26
AR 265008
DI 10.1103/PhysRevLett.110.265008
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 173SC
UT WOS:000321098200012
PM 23848889
ER
PT J
AU Kemper, AF
Sentef, M
Moritz, B
Kao, CC
Shen, ZX
Freericks, JK
Devereaux, TP
AF Kemper, A. F.
Sentef, M.
Moritz, B.
Kao, C. C.
Shen, Z. X.
Freericks, J. K.
Devereaux, T. P.
TI Mapping of unoccupied states and relevant bosonic modes via the
time-dependent momentum distribution
SO PHYSICAL REVIEW B
LA English
DT Article
ID RESOLUTION COMPTON-SCATTERING; DENSITY-WAVE; ELECTRON
AB The unoccupied states of complex materials are difficult to measure, yet they play a key role in determining their properties. We propose a technique that can measure the unoccupied states, called time-resolved Compton scattering, which measures the time-dependent momentum distribution (TDMD). Using a nonequilibrium Keldysh formalism, we study the TDMD for electrons coupled to a lattice in a pump-probe setup. We find a direct relation between temporal oscillations in the TDMD and the dispersion of the underlying unoccupied states, suggesting that both can be measured by time-resolved Compton scattering. We demonstrate the experimental feasibility by applying the method to a model of MgB2 with realistic material parameters.
C1 [Kemper, A. F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Kemper, A. F.; Sentef, M.; Moritz, B.; Shen, Z. X.; Devereaux, T. P.] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA.
[Moritz, B.] Univ Illinois, Dept Phys, De Kalb, IL 60115 USA.
[Moritz, B.] Univ N Dakota, Dept Phys & Astrophys, Grand Forks, ND 58202 USA.
[Kao, C. C.] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
[Shen, Z. X.; Devereaux, T. P.] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
[Freericks, J. K.] Georgetown Univ, Dept Phys, Washington, DC 20057 USA.
RP Kemper, AF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
EM afkemper@lbl.gov
RI Sentef, Michael/L-5717-2013; Moritz, Brian/D-7505-2015; Kemper,
Alexander/F-8243-2016;
OI Sentef, Michael/0000-0002-7946-0282; Moritz, Brian/0000-0002-3747-8484;
Kemper, Alexander/0000-0002-5426-5181; Freericks,
James/0000-0002-6232-9165
FU US Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division [DE-AC02-76SF00515, DE-FG02-08ER46542,
DE-FG02-08ER46540, DE-SC0007091]; McDevitt bequest at Georgetown
University; US DOE, Office of Science [DE-AC02-05CH11231]
FX A.F.K., M.S., B.M. and T.P.D. were supported by the US Department of
Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division under Contract No. DE-AC02-76SF00515. J.K.F. was supported by
the US Department of Energy, Basic Energy Sciences, Materials Sciences
and Engineering Division under Contract No. DE-FG02-08ER46542 and by the
McDevitt bequest at Georgetown University. The collaboration was
supported by the US Department of Energy, Basic Energy Sciences,
Materials Sciences and Engineering Division under Contract Nos.
DE-FG02-08ER46540 and DE-SC0007091. This work was made possible by the
resources of the National Energy Research Scientific Computing Center
which is supported by the US DOE, Office of Science, under Contract No.
DE-AC02-05CH11231. We gratefully acknowledge discussions with P. S.
Kirchmann, J. Sobota, M. Wolf, and S. Yang.
NR 24
TC 13
Z9 13
U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 28
PY 2013
VL 87
IS 23
AR UNSP 235139
DI 10.1103/PhysRevB.87.235139
PG 7
WC Physics, Condensed Matter
SC Physics
GA 173EN
UT WOS:000321061000001
ER
PT J
AU Olalde-Velasco, P
Jimenez-Mier, J
Denlinger, J
Yang, WL
AF Olalde-Velasco, P.
Jimenez-Mier, J.
Denlinger, J.
Yang, W. -L.
TI Atomic multiplets at the L-2,L-3 edge of 3d transition metals and the
ligand K edge in x-ray absorption spectroscopy of ionic systems
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRONIC-STRUCTURE; SPECTRA; OXYGEN; FLUORIDES; OXIDES; EMISSION;
DIFLUORIDES; BEAMLINE; FIELD
AB Experimental X-ray absorption spectra at the fluorine K and transition metal L-2,L-3 absorption edges of the MF2 (M = Cr-Ni) family are presented. Ligand field calculations in D-4h symmetry show very good agreement with the transition metal L-2,L-3 XAS spectra. To successfully explain nominal Cr2+ L-2,L-3 XAS spectrum in CrF2, the inclusion of Cr+ and Cr3+ was needed implying the presence of a disproportionation reaction. The multiplet calculations were then modified to remove the structure of the 2p hole in the calculated M 2p -> 3d absorption spectra. These results for the 3d(n+1) states are in one to one correspondence with the leading edge structures found at the fluorine K edge. A direct comparison with the metal L-2,L-3 edges also indicates that there is evidence of the metal multiplet at the fluorine K pre-edge structures.
C1 [Olalde-Velasco, P.; Denlinger, J.; Yang, W. -L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Jimenez-Mier, J.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico.
RP Olalde-Velasco, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
EM paulolalde@gmail.com; jimenez@nucleares.unam.mx
RI Jimenez-Mier, Jose/A-5081-2009; Yang, Wanli/D-7183-2011
OI Jimenez-Mier, Jose/0000-0002-5939-9568; Yang, Wanli/0000-0003-0666-8063
FU DOE [DE-AC03-76sF0009]; CONACyT Mexico [56764]
FX P.O.V. would like to acknowledge support from Centro de Ciencias de la
Complejidad-UNAM and ALS-SSG during partial preparation of this
manuscript. The Advanced Light Source is supported by
DOE(DE-AC03-76sF0009). P.O.V. and J.J.M. would like to thank the support
of CONACyT Mexico, respectively, under postdoctoral scholarship and
under research Grant No. 56764.
NR 36
TC 8
Z9 8
U1 1
U2 47
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 28
PY 2013
VL 87
IS 24
AR 245136
DI 10.1103/PhysRevB.87.245136
PG 8
WC Physics, Condensed Matter
SC Physics
GA 173ER
UT WOS:000321061400003
ER
PT J
AU Xie, Y
Kent, PRC
AF Xie, Yu
Kent, P. R. C.
TI Hybrid density functional study of structural and electronic properties
of functionalized Tin+1Xn (X = C, N) monolayers
SO PHYSICAL REVIEW B
LA English
DT Article
ID TRANSITION-METAL CARBIDES; MAX PHASES; M(N+1)AX(N) PHASES; ION
BATTERIES; GRAPHENE; STABILITY; NITRIDES; TI3ALC2; SOLIDS; TI2ALC
AB Density functional theory simulations with conventional (PBE) and hybrid (HSE06) functionals were performed to investigate the structural and electronic properties of MXene monolayers, Tin+1Cn and Tin+1Nn (n = 1-9) with surfaces terminated by O, F, H, and OH groups. We find that PBE and HSE06 give similar results. Without functional groups, MXenes have magnetically ordered ground states. All the studied materials are metallic except for Ti2CO2, which we predict to be semiconducting. The calculated density of states at the Fermi level of the thicker MXenes (n >= 5) is much higher than for thin MXenes, indicating that properties such as electronic conductivity and surface chemistry will be different. In general, the carbides and nitrides behave differently with the same functional groups.
C1 [Xie, Yu; Kent, P. R. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Kent, P. R. C.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
RP Xie, Y (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM yxe@ornl.gov
RI Kent, Paul/A-6756-2008; Xie, Yu/E-5875-2011
OI Kent, Paul/0000-0001-5539-4017; Xie, Yu/0000-0002-7782-5428
FU Fluid Interface Reactions, Structures and Transport (FIRST) Center;
Energy Frontier Research Center by the US Department of Energy, Office
of Science, Office of Basic Energy Sciences; Office of Science of the US
Department of Energy [DE-AC02-05CH11231]
FX We thank Yury Gogotsi for helpful discussions and for bringing MXenes to
our attention. V. Mochalin made helpful comments on the manuscript. This
work was supported as part of the Fluid Interface Reactions, Structures
and Transport (FIRST) Center, an Energy Frontier Research Center funded
by the US Department of Energy, Office of Science, Office of Basic
Energy Sciences. This research used resources of the National Energy
Research Scientific Computing Center, which is supported by the Office
of Science of the US Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 41
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Z9 86
U1 23
U2 192
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 28
PY 2013
VL 87
IS 23
AR 235441
DI 10.1103/PhysRevB.87.235441
PG 10
WC Physics, Condensed Matter
SC Physics
GA 173EN
UT WOS:000321061000009
ER
PT J
AU Woo, KM
Yu, SS
Barnard, JJ
AF Woo, K. M.
Yu, S. S.
Barnard, J. J.
TI Techniques for correcting velocity and density fluctuations of ion beams
in ion inducti on accelerators
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
AB It is well known that the imperfection of pulse power sources that drive the linear induction accelerators can lead to time-varying fluctuation in the accelerating voltages, which in turn leads to longitudinal emittance growth. We show that this source of emittance growth is correctable, even in space-charge dominated beams with significant transients induced by space-charge waves. Two correction methods are proposed, and their efficacy in reducing longitudinal emittance is demonstrated with three-dimensional particle-in-cell simulations.
C1 [Woo, K. M.; Yu, S. S.] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
[Yu, S. S.; Barnard, J. J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Barnard, J. J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Woo, KM (reprint author), Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
NR 12
TC 1
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U1 1
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 28
PY 2013
VL 16
IS 6
AR 062804
DI 10.1103/PhysRevSTAB.16.062804
PG 11
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 173SO
UT WOS:000321099500002
ER
PT J
AU Pulk, A
Cate, JHD
AF Pulk, Arto
Cate, Jamie H. D.
TI Control of Ribosomal Subunit Rotation by Elongation Factor G
SO SCIENCE
LA English
DT Article
ID MESSENGER-RNA TRANSLOCATION; EF-G; GTP HYDROLYSIS;
CONFORMATIONAL-CHANGES; INTERSUBUNIT ROTATION; INTERMEDIATE STATES;
PROTEIN-SYNTHESIS; KINETIC-ANALYSIS; SWITCH-I; MOVEMENT
AB Protein synthesis by the ribosome requires the translocation of transfer RNAs and messenger RNA by one codon after each peptide bond is formed, a reaction that requires ribosomal subunit rotation and is catalyzed by the guanosine triphosphatase (GTPase) elongation factor G (EF-G). We determined 3 angstrom resolution x-ray crystal structures of EF-G complexed with a nonhydrolyzable guanosine 5'-triphosphate (GTP) analog and bound to the Escherichia coli ribosome in different states of ribosomal subunit rotation. The structures reveal that EF-G binding to the ribosome stabilizes switch regions in the GTPase active site, resulting in a compact EF-G conformation that favors an intermediate state of ribosomal subunit rotation. These structures suggest that EF-G controls the translocation reaction by cycles of conformational rigidity and relaxation before and after GTP hydrolysis.
C1 [Pulk, Arto; Cate, Jamie H. D.] Univ Calif Berkeley, Dept Mol & Cell Biol, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Cate, Jamie H. D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Cate, Jamie H. D.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Cate, JHD (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, Calif Inst Quantitat Biosci, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM jcate@lbl.gov
OI Pulk, Arto/0000-0001-8793-3038
FU NIH [R01-GM65050]; NIH project MINOS [R01GM105404]; U.S. Department of
Energy [DEAC02-05CH11231]
FX We thank J. Doudna for helpful discussions and comments, J. Holton and
G. Meigs for help with x-ray data collection, and P. Afonine and J.
Headd for advice on crystallographic refinement. This work was supported
by NIH grant R01-GM65050 to J. H. D. C., by the NIH project MINOS grant
R01GM105404 for the Structural Integrated Biology for Life Sciences
(SIBYLS) and 8.3.1 beam lines at the Advanced Light Source (ALS), and by
the U.S. Department of Energy (DEAC02-05CH11231 for the SIBYLS and 8.3.1
beam-lines at the ALS). Coordinates for the ribosomes have been
deposited in the Protein Data Bank (PDB): 4KIX, 4KIY, 4KIZ, 4KJ0, 4KJ1,
4KJ2, 4KJ3, 4KJ4, 4KJ5, 4KJ6, 4KJ7, 4KJ8, 4KJ9, 4KJA, 4KJB, and 4KJC.
NR 56
TC 77
Z9 78
U1 1
U2 31
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
EI 1095-9203
J9 SCIENCE
JI Science
PD JUN 28
PY 2013
VL 340
IS 6140
BP 1544
EP +
AR 1235970
DI 10.1126/science.1235970
PG 2
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 172ME
UT WOS:000321007000033
PM 23812721
ER
PT J
AU Rowley, DB
Forte, AM
Moucha, R
Mitrovica, JX
Simmons, NA
Grand, SP
AF Rowley, David B.
Forte, Alessandro M.
Moucha, Robert
Mitrovica, Jerry X.
Simmons, Nathan A.
Grand, Stephen P.
TI Dynamic Topography Change of the Eastern United States Since 3 Million
Years Ago
SO SCIENCE
LA English
DT Article
ID ATLANTIC COASTAL-PLAIN; SEA-LEVEL CHANGE; PASSIVE MARGIN; NEW-JERSEY;
RECORD; PLIOCENE; FLUCTUATIONS; COREHOLES; PLATFORM; DRIVEN
AB Sedimentary rocks from Virginia through Florida record marine flooding during the mid-Pliocene. Several wave-cut scarps that at the time of deposition would have been horizontal are now draped over a warped surface with a maximum variation of 60 meters. We modeled dynamic topography by using mantle convection simulations that predict the amplitude and broad spatial distribution of this distortion. The results imply that dynamic topography and, to a lesser extent, glacial isostatic adjustment account for the current architecture of the coastal plain and proximal shelf. This confounds attempts to use regional stratigraphic relations as references for longer-term sea-level determinations. Inferences of Pliocene global sea-level heights or stability of Antarctic ice sheets therefore cannot be deciphered in the absence of an appropriate mantle dynamic reference frame.
C1 [Rowley, David B.] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA.
[Forte, Alessandro M.] Univ Quebec, GEOTOP, Montreal, PQ H3C 3P8, Canada.
[Moucha, Robert] Syracuse Univ, Dept Earth Sci, Heroy Geol Lab 204, Syracuse, NY 13244 USA.
[Mitrovica, Jerry X.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA.
[Simmons, Nathan A.] Lawrence Livermore Natl Lab, Atmospher Earth & Energy Div, Livermore, CA 94551 USA.
[Grand, Stephen P.] Univ Texas Austin, Jackson Sch Geol Sci, Austin, TX 78712 USA.
RP Rowley, DB (reprint author), Univ Chicago, Dept Geophys Sci, 5734 S Ellis Ave, Chicago, IL 60637 USA.
EM drowley@uchicago.edu
RI Simmons, Nathan/J-9022-2014; Grand, Stephen/B-4238-2011;
OI Rowley, David/0000-0001-9767-9029
FU Canadian Institute for Advanced Research (CIFAR); Natural Sciences and
Engineering Research Council of Canada; Canada Research Chair Program;
U.S. Department of Energy [DE-AC52-07NA27344]; NSF [EAR0309189,
OCE-1202632]; Harvard University; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]
FX D.B.R., A. M. F., and J.X.M. thank the Canadian Institute for Advanced
Research (CIFAR) for research support and a postdoctoral fellowship to
R. M. and members of the Earth Systems Evolution Program of CIFAR for
discussions and encouragement. We also acknowledge funding from Natural
Sciences and Engineering Research Council of Canada and the Canada
Research Chair Program (A. M. F.), the U.S. Department of Energy under
contract DE-AC52-07NA27344 (N.A.S.), NSF grants EAR0309189 (S. P. G.)
and OCE-1202632 (J.X.M.), and Harvard University (J.X.M.). Work by
N.A.S. is performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344. Data are available online in the supplementary
materials. D. B. R. was responsible for the geology and data integration
and thanks T. Komacek for help compiling Pliocene marine localities
along the Coastal Plain; A. M. F. and R. M. were responsible for the
dynamic topography calculations; J.X.M. for glacial isostatic adjustment
calculations; and N.A.S. and S. P. G., for the global seismic
tomography, which, working together with A. M. F., yielded the buoyancy
field that underlies the dynamic topography calculations.
NR 41
TC 56
Z9 56
U1 6
U2 48
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JUN 28
PY 2013
VL 340
IS 6140
BP 1560
EP 1563
DI 10.1126/science.1229180
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 172ME
UT WOS:000321007000038
PM 23686342
ER
PT J
AU Barnard, ES
Hoke, ET
Connor, ST
Groves, JR
Kuykendall, T
Yan, Z
Samulon, EC
Bourret-Courchesne, ED
Aloni, S
Schuck, PJ
Peters, CH
Hardin, BE
AF Barnard, Edward S.
Hoke, Eric T.
Connor, Stephen T.
Groves, James R.
Kuykendall, Tevye
Yan, Zewu
Samulon, Eric C.
Bourret-Courchesne, Edith D.
Aloni, Shaul
Schuck, P. James
Peters, Craig H.
Hardin, Brian E.
TI Probing carrier lifetimes in photovoltaic materials using subsurface
two-photon microscopy
SO SCIENTIFIC REPORTS
LA English
DT Article
ID TIME-RESOLVED PHOTOLUMINESCENCE; CDTE SINGLE-CRYSTALS; FLUORESCENCE
MICROSCOPY; SURFACE RECOMBINATION; SOLAR-CELLS; GAAS; EFFICIENCY;
RESOLUTION; GAN
AB Accurately measuring the bulk minority carrier lifetime is one of the greatest challenges in evaluating photoactive materials used in photovoltaic cells. One-photon time-resolved photoluminescence decay measurements are commonly used to measure lifetimes of direct bandgap materials. However, because the incident photons have energies higher than the bandgap of the semiconductor, most carriers are generated close to the surface, where surface defects cause inaccurate lifetime measurements. Here we show that two-photon absorption permits sub-surface optical excitation, which allows us to decouple surface and bulk recombination processes even in unpassivated samples. Thus with two-photon microscopy we probe the bulk minority carrier lifetime of photovoltaic semiconductors. We demonstrate how the traditional one-photon technique can underestimate the bulk lifetime in a CdTe crystal by 10x and show that two-photon excitation more accurately measures the bulk lifetime. Finally, we generate multi-dimensional spatial maps of optoelectronic properties in the bulk of these materials using two-photon excitation.
C1 [Barnard, Edward S.; Kuykendall, Tevye; Aloni, Shaul; Schuck, P. James] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Barnard, Edward S.; Hoke, Eric T.; Connor, Stephen T.; Groves, James R.; Peters, Craig H.; Hardin, Brian E.] PLANT PV Inc, Oakland, CA USA.
[Yan, Zewu; Samulon, Eric C.; Bourret-Courchesne, Edith D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Barnard, ES (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM esbarnard@lbl.gov; pjschuck@lbl.gov
RI Foundry, Molecular/G-9968-2014
FU Office of Science, Office of Basic Energy Sciences, of the US Department
of Energy [DE-AC02-05CH1123]; Department of Energy [DE-EE0005332,
DE-EE0005953]
FX Work at the Molecular Foundry was supported by the Office of Science,
Office of Basic Energy Sciences, of the US Department of Energy under
Contract No. DE-AC02-05CH1123. This material is based upon work
supported by the Department of Energy under Award Numbers DE-EE0005332
and DE-EE0005953.
NR 31
TC 18
Z9 18
U1 0
U2 31
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 28
PY 2013
VL 3
AR 2098
DI 10.1038/srep02098
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 172WQ
UT WOS:000321036900011
PM 23807197
ER
PT J
AU Gretarsson, H
Clancy, JP
Singh, Y
Gegenwart, P
Hill, JP
Kim, J
Upton, MH
Said, AH
Casa, D
Gog, T
Kim, YJ
AF Gretarsson, H.
Clancy, J. P.
Singh, Yogesh
Gegenwart, P.
Hill, J. P.
Kim, Jungho
Upton, M. H.
Said, A. H.
Casa, D.
Gog, T.
Kim, Young-June
TI Magnetic excitation spectrum of Na2IrO3 probed with resonant inelastic
x-ray scattering
SO PHYSICAL REVIEW B
LA English
DT Article
AB The low energy excitations in Na2IrO3 have been investigated using resonant inelastic x-ray scattering (RIXS). A magnetic excitation branch can be resolved, whose dispersion reaches a maximum energy of about 35 meV at the Gamma point. The momentum dependence of the excitation energy is much larger along the Gamma-X direction compared to that along the Gamma-Y direction. The observed dispersion relation is consistent with a recent theoretical prediction based on the Heisenberg-Kitaev model. At high temperatures, we find large contributions from lattice vibrational modes to our RIXS spectra, suggesting that a strong electron-lattice coupling is present in Na2IrO3.
C1 [Gretarsson, H.; Clancy, J. P.; Kim, Young-June] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Singh, Yogesh] Indian Inst Sci Educ & Res Mohali, Manauli 140306, PO, India.
[Gegenwart, P.] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany.
[Hill, J. P.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Kim, Jungho; Upton, M. H.; Said, A. H.; Casa, D.; Gog, T.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Gretarsson, H (reprint author), Univ Toronto, Dept Phys, 60 St George St, Toronto, ON M5S 1A7, Canada.
EM yjkim@physics.utoronto.ca
RI Kim, Young-June /G-7196-2011; singh, yogesh/F-7160-2016; Casa,
Diego/F-9060-2016; Gegenwart, Philipp/A-7291-2017
OI Kim, Young-June /0000-0002-1172-8895;
FU NSERC; CFI; OMRI; U.S. DOE [DE-AC02-06CH11357]
FX We would like to thank G. Khaliullin, G. Jackeli, B. J. Kim, and S.
Johnston for valuable discussions. Research at the University of Toronto
was supported by the NSERC, CFI, and OMRI. Use of the Advanced Photon
Source, an Office of Science User Facility operated for the U.S.
Department of Energy (DOE) Office of Science by Argonne National
Laboratory, was supported by the U.S. DOE under Contract No.
DE-AC02-06CH11357.
NR 36
TC 40
Z9 40
U1 2
U2 48
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 28
PY 2013
VL 87
IS 22
AR 220407
DI 10.1103/PhysRevB.87.220407
PG 5
WC Physics, Condensed Matter
SC Physics
GA 173EJ
UT WOS:000321060600001
ER
PT J
AU Mahjouri-Samani, M
Zhou, YS
Fan, L
Gao, Y
Xiong, W
More, KL
Jiang, L
Lu, YF
AF Mahjouri-Samani, M.
Zhou, Y. S.
Fan, L.
Gao, Y.
Xiong, W.
More, K. L.
Jiang, L.
Lu, Y. F.
TI Laser-assisted solid-state synthesis of carbon nanotube/silicon
core/shell structures
SO NANOTECHNOLOGY
LA English
DT Article
ID HETEROJUNCTION SOLAR-CELLS; LITHIUM-ION BATTERIES;
MECHANICAL-PROPERTIES; NANOTUBES; SILICON; CAPACITY; ELECTRONICS;
MOBILITY; ANODES
AB A single-step solid-state synthetic approach was developed for the synthesis of silicon-coated carbon nanotube (CNT) core/shell structures. This was achieved through laser-induced melting and evaporation of CNT-deposited Si substrates using a continuous wavelength CO2 laser. The synthesis location of the CNT/Si structures was defined by the laser-irradiated spots. The thickness of the coating was controlled by tuning the laser power and synthesis time during the coating process. This laser-based synthetic technique provides a convenient approach for solid-state, controllable, gas-free, simple and cost-effective fabrication of CNT/Si core/shell structures.
C1 [Mahjouri-Samani, M.; Zhou, Y. S.; Fan, L.; Gao, Y.; Xiong, W.; Lu, Y. F.] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
[More, K. L.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Jiang, L.] Beijing Inst Technol, Dept Mech & Automat Engn, Beijing 100081, Peoples R China.
RP Mahjouri-Samani, M (reprint author), Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
EM ylu2@unl.edu
RI Gao, Yang/M-9866-2013; Mahjouri-Samani, Masoud/Q-2239-2015; More,
Karren/A-8097-2016
OI Mahjouri-Samani, Masoud/0000-0002-6080-7450; More,
Karren/0000-0001-5223-9097
FU National Science Foundation [CMMI 0852729, 1068510, 1129613]; Nebraska
Center for Energy Science Research (NCESR); Oak Ridge National
Laboratory's Shared Research Equipment (ShaRE) User Facility; Office of
Basic Energy Sciences, US Department of Energy
FX This research work was financially supported by the National Science
Foundation (CMMI 0852729, 1068510, 1129613), Nebraska Center for Energy
Science Research (NCESR), and in part by Oak Ridge National Laboratory's
Shared Research Equipment (ShaRE) User Facility, which is sponsored by
the Office of Basic Energy Sciences, US Department of Energy. The
authors are grateful to Dr David B Geohegan (ORNL) for his valuable
discussions and comments.
NR 36
TC 2
Z9 2
U1 3
U2 77
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
EI 1361-6528
J9 NANOTECHNOLOGY
JI Nanotechnology
PD JUN 28
PY 2013
VL 24
IS 25
AR 255604
DI 10.1088/0957-4484/24/25/255604
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 159EY
UT WOS:000320029000013
PM 23727730
ER
PT J
AU Ren, F
Zhou, XD
Liu, YC
Wang, YQ
Cai, GX
Xiao, XH
Dai, ZG
Li, WQ
Yan, SJ
Wu, W
Zhang, C
Ni, HW
Jiang, CZ
AF Ren, Feng
Zhou, Xiao-Dong
Liu, Yi-Chao
Wang, Yong-Qiang
Cai, Guang-Xu
Xiao, Xiang-Heng
Dai, Zhi-Gao
Li, Wen-Qing
Yan, Shao-Jian
Wu, Wei
Zhang, Chao
Ni, Hong-Wei
Jiang, Chang-Zhong
TI Fabrication and properties of TiO2 nanofilms on different substrates by
a novel and universal method of Ti-ion implantation and subsequent
annealing
SO NANOTECHNOLOGY
LA English
DT Article
ID VISIBLE-LIGHT IRRADIATION; TITANIUM-DIOXIDE; RAMAN-SCATTERING; NANOPHASE
TIO2; ANATASE TIO2; PHOTOCATALYSTS; SPECTRUM; TRANSFORMATION;
NANOPARTICLES; NANOCRYSTALS
AB We report a new, novel and universal method to fabricate high-quality titanium dioxide (TiO2) nanofilms on different substrates by a solid phase growth process of ion implantation and subsequent annealing in oxygen atmosphere. Ti ions were implanted into fused silica, soda lime glass, Z-cut quartz, or (0001) alpha-sapphire by a metal vapor vacuum arc (MEVVA) ion source implanter to fluences of 0.75, 1.5 and 3 x 10(17) ions cm(-2) with a nominal accelerating voltage of 20 kV. To understand the influence of the annealing temperature, time, and substrate on the formation and phase transformation of the TiO2 nanofilms, the Ti-ion-implanted substrates were annealed in oxygen atmosphere from 500 to 1000 degrees C for 1-6 h. The formation of TiO2 nanofilms resulted from the slow out-diffusion of implanted Ti ions from the substrates which were then oxidized at the surfaces. The thickness and phase of the nanofilms can be tailored by controlling the implantation and annealing parameters. Since the TiO2 nanofilms are formed under high temperature and low growth rate, they show good crystallinity and antibacterial properties, with good film adhesion and stability, suggesting that the TiO2 nanofilms formed by this method have great potential in applications such as antibacterial and self-cleaning transparent glass.
C1 [Ren, Feng; Zhou, Xiao-Dong; Liu, Yi-Chao; Cai, Guang-Xu; Xiao, Xiang-Heng; Dai, Zhi-Gao; Li, Wen-Qing; Yan, Shao-Jian; Wu, Wei; Jiang, Chang-Zhong] Wuhan Univ, Ctr Ion Beam Applicat, Sch Phys & Technol, Wuhan 430072, Peoples R China.
[Ren, Feng; Zhou, Xiao-Dong; Liu, Yi-Chao; Cai, Guang-Xu; Xiao, Xiang-Heng; Dai, Zhi-Gao; Li, Wen-Qing; Yan, Shao-Jian; Wu, Wei; Jiang, Chang-Zhong] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China.
[Wang, Yong-Qiang] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[Zhang, Chao; Ni, Hong-Wei] Wuhan Univ Sci & Technol, Sch Met & Mat, Wuhan 430081, Peoples R China.
RP Ren, F (reprint author), Wuhan Univ, Ctr Ion Beam Applicat, Sch Phys & Technol, Wuhan 430072, Peoples R China.
EM yqwang@lanl.gov; czjiang@whu.edu.cn
RI Ren, Feng/F-9778-2014; Jiang, Changzhong/O-6273-2014; Wu,
Wei/B-6255-2009;
OI Ren, Feng/0000-0002-9557-5995; Wu, Wei/0000-0002-7672-7965; xiao,
xiangheng/0000-0001-9111-1619
FU National Basic Research Program of China (973 Program) [2009CB939704];
Natural Science Foundation of China [51171132, 11175133, 11005082,
5120115]; Chinese Ministry of Education [201000141120042, 31100]; Hubei
Provincial Natural Science Foundation [2012FFA042]; Fundamental Research
Funds for the Central Universities; Center for Integrated
Nanotechnologies (CINT)
FX The author thanks the National Basic Research Program of China (973
Program, 2009CB939704), the Natural Science Foundation of China
(51171132, 11175133, 11005082, 5120115), the Foundations from Chinese
Ministry of Education (201000141120042, 31100), Hubei Provincial Natural
Science Foundation (2012FFA042), and the Fundamental Research Funds for
the Central Universities for financial support. Partial support for Y Q
Wang was provided by the Center for Integrated Nanotechnologies (CINT),
a US Department of Energy nanoscience user center jointly operated by
Los Alamos and Sandia National Laboratories.
NR 32
TC 8
Z9 9
U1 3
U2 53
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD JUN 28
PY 2013
VL 24
IS 25
AR 255603
DI 10.1088/0957-4484/24/25/255603
PG 10
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 159EY
UT WOS:000320029000012
PM 23727692
ER
PT J
AU Satoh, Y
Yokota, T
Sudo, T
Kondo, M
Lai, A
Kincade, PW
Kouro, T
Iida, R
Kokame, K
Miyata, T
Habuchi, Y
Matsui, K
Tanaka, H
Matsumura, I
Oritani, K
Kohwi-Shigematsu, T
Kanakura, Y
AF Satoh, Yusuke
Yokota, Takafumi
Sudo, Takao
Kondo, Motonari
Lai, Anne
Kincade, Paul W.
Kouro, Taku
Iida, Ryuji
Kokame, Koichi
Miyata, Toshiyuki
Habuchi, Yoko
Matsui, Keiko
Tanaka, Hirokazu
Matsumura, Itaru
Oritani, Kenji
Kohwi-Shigematsu, Terumi
Kanakura, Yuzuru
TI The Satb1 Protein Directs Hematopoietic Stem Cell Differentiation toward
Lymphoid Lineages
SO IMMUNITY
LA English
DT Article
ID MAR-BINDING PROTEIN; BONE-MARROW; GENE-EXPRESSION; STROMAL CELLS; RAG1
LOCUS; PROGENITORS; PROMOTE; TRANSCRIPTION; IDENTIFICATION;
LYMPHOPOIESIS
AB How hematopoietic stem cells (HSCs) produce particular lineages is insufficiently understood. We searched for key factors that direct HSC to lymphopoiesis. Comparing gene expression profiles for HSCs and early lymphoid progenitors revealed that Satb1, a global chromatin regulator, was markedly induced with lymphoid lineage specification. HSCs from Satb1-deficient mice were defective in lymphopoietic activity in culture and failed to reconstitute T lymphopoiesis in wild-type recipients. Furthermore, Satb1 transduction of HSCs and embryonic stem cells robustly promoted their differentiation toward lymphocytes. Whereas genes that encode Ikaros, E2A, and Notch1 were unaffected, many genes involved in lineage decisions were regulated by Satb1. Satb1 expression was reduced in aged HSCs with compromised lymphopoietic potential, but forced Satb1 expression partly restored that potential. Thus, Satb1 governs the initiating process central to the replenishing of lymphoid lineages. Such activity in lymphoid cell generation may be of clinical importance and useful to overcome immunosenescence.
C1 [Satoh, Yusuke; Yokota, Takafumi; Sudo, Takao; Habuchi, Yoko; Matsui, Keiko; Tanaka, Hirokazu; Matsumura, Itaru; Oritani, Kenji; Kanakura, Yuzuru] Osaka Univ, Grad Sch Med, Dept Hematol & Oncol, Suita, Osaka 5650871, Japan.
[Kondo, Motonari; Lai, Anne] Duke Univ, Med Ctr, Dept Immunol, Durham, NC 27710 USA.
[Kincade, Paul W.; Iida, Ryuji] Oklahoma Med Res Fdn, Immunobiol & Canc Program, Oklahoma City, OK 73104 USA.
[Kouro, Taku; Iida, Ryuji] Natl Inst Biomed Innovat, Lab Immune Modulat, Ibaraki, Osaka 5670085, Japan.
[Kokame, Koichi; Miyata, Toshiyuki] Natl Cerebral & Cardiovasc Ctr, Dept Mol Pathogenesis, Suita, Osaka 5658565, Japan.
[Kohwi-Shigematsu, Terumi] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Cell & Mol Biol, Berkeley, CA 94720 USA.
RP Yokota, T (reprint author), Osaka Univ, Grad Sch Med, Dept Hematol & Oncol, Suita, Osaka 5650871, Japan.
EM yokotat@bldon.med.osaka-u.ac.jp
FU Mitsubishi Pharma Research Foundation; National Institutes of Health
[AI020069, HL107138-03, R37 CA039681]
FX We thank T. Nakano for discussion of the results. This work was
supported in part by a grant from Mitsubishi Pharma Research Foundation
and grants AI020069, HL107138-03, and R37 CA039681 from the National
Institutes of Health.
NR 36
TC 27
Z9 28
U1 0
U2 6
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 1074-7613
EI 1097-4180
J9 IMMUNITY
JI Immunity
PD JUN 27
PY 2013
VL 38
IS 6
BP 1105
EP 1115
DI 10.1016/j.immuni.2013.05.014
PG 11
WC Immunology
SC Immunology
GA AA2TR
UT WOS:000330947500007
PM 23791645
ER
PT J
AU Lin, ZH
Dong, J
Greene, DL
AF Lin, Zhenhong
Dong, Jing
Greene, David L.
TI Hydrogen vehicles: Impacts of DOE technical targets on market acceptance
and societal benefits
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Hydrogen; Alternative fuel vehicle; Energy; Greenhouse gas; Public
policy; Electric vehicle
ID PLUG-IN HYBRID
AB Hydrogen vehicles (H2V), including H-2 internal combustion engine, fuel cell and fuel cell plug-in hybrid, could greatly reduce petroleum consumption and greenhouse gas (GHG) emissions in the transportation sector. The U.S. Department of Energy has adopted targets for vehicle component technologies to address key technical barriers to widespread commercialization of H(2)Vs. This study estimates the market acceptance of H(2)Vs and the resulting societal benefits and subsidy in 41 scenarios that reflect a wide range of progress in meeting these technical targets. Important results include: (1) H(2)Vs could reach 20-70% market shares by 2050, depending on progress in achieving the technical targets. With a basic hydrogen infrastructure (similar to 5% hydrogen availability), the H2V market share is estimated to be 2-8%. Fuel cell and hydrogen costs are the most important factors affecting the long-term market shares of H(2)Vs. (2) Meeting all technical targets on time could result in about an 80% cut in petroleum use and a 62% (or 72% with aggressive electricity de-carbonization) reduction in GHG in 2050. (3) The required hydrogen infrastructure subsidy is estimated to range from $22 to $47 billion and the vehicle subsidy from $4 to $17 billion. (4) Long-term H2V market shares, societal benefits and hydrogen subsidies appear to be highly robust against delay in one target, if all other targets are met on time. R&D diversification could provide insurance for greater societal benefits. (5) Both H(2)Vs and plug-in electric vehicles could exceed 50% market shares by 2050, if all targets are met on time. The overlapping technology, the fuel cell plug-in hybrid electric vehicle, appears attractive both in the short and long runs, but for different reasons. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Lin, Zhenhong; Greene, David L.] Oak Ridge Natl Lab, Knoxville, TN 37932 USA.
[Dong, Jing] Iowa State Univ, Ames, IA 50011 USA.
RP Lin, ZH (reprint author), Oak Ridge Natl Lab, 2360 Cherahala Blvd, Knoxville, TN 37932 USA.
EM linz@ornl.gov; jingdong@iastate.edu; dlgreene@ornl.gov
FU U.S. Department of Energy's Fuel Cell Technologies Office; Vehicle
Technologies Office
FX The authors thank the support of the U.S. Department of Energy's Fuel
Cell Technologies Office (Fred Joseck) and Vehicle Technologies Office
(Jake Ward). The authors assume sole responsibilities for content and
viewpoints expressed in this paper.
NR 15
TC 5
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U1 1
U2 21
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 27
PY 2013
VL 38
IS 19
BP 7973
EP 7985
DI 10.1016/j.ijhydene.2013.04.120
PG 13
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 177XA
UT WOS:000321407500026
ER
PT J
AU Klebanoff, LE
Keller, JO
AF Klebanoff, L. E.
Keller, J. O.
TI 5 years of hydrogen storage research in the U.S. DOE Metal Hydride
Center of Excellence (MHCoE) (vol 38, pg 4533, 2013)
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Correction
C1 [Klebanoff, L. E.; Keller, J. O.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Klebanoff, LE (reprint author), Sandia Natl Labs, POB 969,MS 9161,7011 East Ave, Livermore, CA 94551 USA.
EM lekleba@sandia.gov
NR 1
TC 2
Z9 2
U1 4
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 27
PY 2013
VL 38
IS 19
BP 8022
EP 8022
DI 10.1016/j.ijhydene.2013.04.105
PG 1
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 177XA
UT WOS:000321407500031
ER
PT J
AU Houf, WG
Winters, WS
AF Houf, W. G.
Winters, W. S.
TI Simulation of high-pressure liquid hydrogen releases
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Liquid hydrogen jet releases; Hydrogen codes and standards; Dilution
distances
ID FLOW
AB Sandia National Laboratories is working with stakeholders to develop scientific data for use by standards development organizations to create hydrogen codes and standards for the safe use of liquid hydrogen. Knowledge of the concentration field and flammability envelope for high-pressure hydrogen leaks is an issue of importance for the safe use of liquid hydrogen. Sandia National Laboratories is engaged in an experimental and analytical program to characterize and predict the behavior of liquid hydrogen releases. This paper presents a model for computing hydrogen dilution distances for cold hydrogen releases. Model validation is presented for leaks of room temperature and 80 K high-pressure hydrogen gas. The model accounts for a series of transitions that occurs from a stagnate location in the tank to a point in the leak jet where the concentration of hydrogen in air at the jet centerline has dropped to 4% by volume. The leaking hydrogen is assumed to be a simple compressible substance with thermodynamic equilibrium between hydrogen vapor, hydrogen liquid and air. For the multi-phase portions of the jet near the leak location the REFPROP equation of state models developed by NIST are used to account for the thermodynamics. Further downstream, the jet develops into an atmospheric gas jet where the thermodynamics are described as a mixture of ideal gases (hydrogen-air mixture). Simulations are presented for dilution distances in under-expanded high-pressure leaks from the saturated vapor and saturated liquid portions of a liquid hydrogen storage tank at 10.34 barg (150 PSIG). Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Houf, W. G.; Winters, W. S.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Houf, WG (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM will@sandia.gov
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94-AL85000]; U.S. Department of Energy, Office
of Energy Efficiency and Renewable Energy, Fuel Cell Technologies
Program under the Safety, Codes, and Standards subprogram
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the United States Department of Energy's
National Nuclear Security Administration under Contract
DE-AC04-94-AL85000.; This work was supported by the U.S. Department of
Energy, Office of Energy Efficiency and Renewable Energy, Fuel Cell
Technologies Program under the Safety, Codes, and Standards subprogram
element managed by Antonio Ruiz.
NR 21
TC 2
Z9 2
U1 1
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 27
PY 2013
VL 38
IS 19
BP 8092
EP 8099
DI 10.1016/j.ijhydene.2013.01.052
PG 8
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 177XA
UT WOS:000321407500040
ER
PT J
AU Houf, WG
Evans, GH
Ekoto, IW
Merilo, EG
Groethe, MA
AF Houf, W. G.
Evans, G. H.
Ekoto, I. W.
Merilo, E. G.
Groethe, M. A.
TI Hydrogen fuel-cell forklift vehicle releases in enclosed spaces
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Hydrogen fuel-cell forklift; Simulations; Experimental validation;
Hydrogen codes and standards
ID DYNAMICS
AB Sandia National Laboratories has worked with stakeholders and original equipment manufacturers (OEMs) to develop scientific data that can be used to create risk-informed hydrogen codes and standards for the safe operation of indoor hydrogen fuel-cell forklifts. An important issue is the possibility of an accident inside a warehouse or other enclosed space, where a release of hydrogen from the high-pressure gaseous storage tank could occur. For such scenarios, computational fluid dynamics (CFD) simulations have been used to model the release and dispersion of gaseous hydrogen from the vehicle and to study the behavior of the ignitable hydrogen cloud inside the warehouse or enclosure. The overpressure arising as a result of ignition and subsequent deflagration of the hydrogen cloud within the warehouse has been studied for different ignition delay times and ignition locations. Both ventilated and unventilated warehouses have been considered in the analysis. Experiments have been performed in a scaled warehouse test facility and compared with simulations to validate the results of the computational analysis. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Houf, W. G.; Evans, G. H.; Ekoto, I. W.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Merilo, E. G.; Groethe, M. A.] SRI Int, Menlo Pk, CA 94025 USA.
RP Ekoto, IW (reprint author), Sandia Natl Labs, 7011 East Ave,MS 9052, Livermore, CA 94551 USA.
EM iekoto@sandia.gov
FU U.S. Department of Energy, Office of Energy Efficiency and Renewable
Energy, Fuel Cell Technologies Program under the Safety, Codes, and
Standards subprogram element
FX This work was supported by the U.S. Department of Energy, Office of
Energy Efficiency and Renewable Energy, Fuel Cell Technologies Program
under the Safety, Codes, and Standards subprogram element managed by
Antonio Ruiz.
NR 17
TC 4
Z9 4
U1 2
U2 23
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 27
PY 2013
VL 38
IS 19
BP 8179
EP 8189
DI 10.1016/j.ijhydene.2012.05.115
PG 11
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 177XA
UT WOS:000321407500049
ER
PT J
AU Petitpas, G
Aceves, SM
AF Petitpas, G.
Aceves, S. M.
TI Modeling of sudden hydrogen expansion from cryogenic pressure vessel
failure
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Room temperature pressure vessel; Cryogenic pressure vessel; Failure;
Sudden release; Expansion energy
ID STORAGE; VEHICLES; RELEASE; SIMULATION
AB We have modeled sudden hydrogen expansion from a cryogenic pressure vessel. This model considers real gas equations of state, single and two-phase flow, and the specific "vessel within vessel" geometry of cryogenic vessels. The model can solve sudden hydrogen expansion for initial pressures up to 1210 bar and for initial temperatures ranging from 27 to 400 K. For practical reasons, our study focuses on hydrogen release from 345 bar, with temperatures between 62 K and 300 K. The pressure vessel internal volume is 151 L. The results indicate that cryogenic pressure vessels may offer a safety advantage with respect to compressed hydrogen vessels because i) the vacuum jacket protects the pressure vessel from environmental damage, ii) hydrogen, when released, discharges first into an intermediate chamber before reaching the outside environment, and working temperature is typically much lower and thus the hydrogen has less energy. Results indicate that key expansion parameters such as pressure, rate of energy release, and thrust are all considerably lower for a cryogenic vessel within vessel geometry as compared to ambient temperature compressed gas vessels. Future work will focus on taking advantage of these favorable conditions to attempt fail-safe cryogenic vessel designs that do not harm people or property even after catastrophic failure of the inner pressure vessel. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Petitpas, G.; Aceves, S. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Petitpas, G (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-792, Livermore, CA 94550 USA.
EM petitpas1@llnl.gov
FU DOE, Office of Fuel Cell Technologies; U.S. Department of Energy by
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX This project was funded by DOE, Office of Fuel Cell Technologies,
Antonio Ruiz, Technology Development Manager. This work performed under
the auspices of the U.S. Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344.
NR 19
TC 6
Z9 6
U1 1
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 27
PY 2013
VL 38
IS 19
BP 8190
EP 8198
DI 10.1016/j.ijhydene.2012.03.166
PG 9
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 177XA
UT WOS:000321407500050
ER
PT J
AU Lo, MH
Wu, CM
Ma, HY
Famiglietti, JS
AF Lo, Min-Hui
Wu, Chien-Ming
Ma, Hsi-Yen
Famiglietti, James S.
TI The response of coastal stratocumulus clouds to agricultural irrigation
in California
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE irrigation; Stratocumulus; land surface model; general circulation model
ID LOWER-TROPOSPHERIC STABILITY; TOPPED BOUNDARY-LAYERS; SUBTROPICAL
STRATOCUMULUS; STRATIFORM CLOUDS; RADIATION BUDGET; SURFACE CLIMATE;
UNITED-STATES; LAND-SURFACE; WATER CYCLE; MODEL
AB Stratocumulus clouds (SC) often exist over the eastern subtropical oceans during the summer and have significant impacts on the surface radiation budget. Both atmospheric subsidence and lower troposphere stability (LTS) have been found to play important roles in maintaining SC. Using global climate model simulations, we find that irrigation in California's Central Valley results in a decrease of land surface temperature, leading to a smaller land-sea heat contrast, and a corresponding reduction in sea breeze, subsidence, and LTS over the near-coastal region. The decrease in LTS directly drives a reduction in modeled SC coverage, and it would arguably do so in reality because of the well-known link between LTS and SC coverage. Consequently, simulated absorbed surface solar radiation over this region increases by 8W/m(2) (3.7%) due to the reduction in SC cover, resulting in the warming at the Earth's surface. This study has important implications for how SC can change with regard to future climate. In contrast to the general effects of climate change on the formation of SC, our results suggest that irrigation practices in the Central Valley may drive a decrease in nearby SC coverage.
C1 [Lo, Min-Hui; Wu, Chien-Ming] Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
[Ma, Hsi-Yen] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA.
[Famiglietti, James S.] Univ Calif Irvine, UC Ctr Hydrol Modeling, Irvine, CA USA.
[Famiglietti, James S.] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA.
RP Lo, MH (reprint author), Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
EM minhuilo@ntu.edu.tw
RI Ma, Hsi-Yen/K-1019-2013;
OI LO, MIN-HUI/0000-0002-8653-143X; Wu, Chien-Ming/0000-0001-9295-7181
FU National Science Council Grant [101-2111-M-002-001, 101-2111-M-002-006,
NSC-100-2119-M-001-029-MY5]; University of California Office of the
President (UCOP) MRPI program; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]
FX We thank Dominik Wisser and Stefan Siebert for providing the global
irrigation datasets. Funding was provided by the National Science
Council Grant 101-2111-M-002-001 and 101-2111-M-002-006 to National
Taiwan University, NSC-100-2119-M-001-029-MY5, and by the University of
California Office of the President (UCOP) MRPI program. The contribution
of Hsi-Yen Ma to this work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
contract DE-AC52-07NA27344.
NR 49
TC 4
Z9 4
U1 1
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6044
EP 6051
DI 10.1002/jgrd.50516
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600010
ER
PT J
AU de Boer, G
Bauer, SE
Toto, T
Menon, S
Vogelmann, AM
AF de Boer, G.
Bauer, S. E.
Toto, T.
Menon, Surabi
Vogelmann, A. M.
TI Evaluation of aerosol-cloud interaction in the GISS ModelE using ARM
observations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE climate model; aerosol cloud interactions; model evaluation; remote
sensing
ID GLOBAL CLIMATE MODELS; GENERAL-CIRCULATION MODEL; GROUND-BASED
MEASUREMENTS; EFFECTIVE RADIUS; SATELLITE DATA; WATER CLOUDS;
PARAMETERIZATION; MICROPHYSICS; SIMULATIONS; VAPOR
AB Observations from the US Department of Energy's Atmospheric Radiation Measurement (ARM) program are used to evaluate the ability of the NASA GISS ModelE global climate model in reproducing observed interactions between aerosols and clouds. Included in the evaluation are comparisons of basic meteorology and aerosol properties, droplet activation, effective radius parameterizations, and surfacebased evaluations of aerosolcloud interactions (ACI). Differences between the simulated and observed ACI are generally large, but these differences may result partially from vertical distribution of aerosol in the model, rather than the representation of physical processes governing the interactions between aerosols and clouds. Compared to the current observations, the ModelE often features elevated droplet concentrations for a given aerosol concentration, indicating that the activation parameterizations used may be too aggressive. Additionally, parameterizations for effective radius commonly used in models were tested using ARM observations, and there was no clear superior parameterization for the cases reviewed here. This lack of consensus is demonstrated to result in potentially large, statistically significant differences to surface radiative budgets, should one parameterization be chosen over another.
C1 [de Boer, G.] Univ Colorado, NOAA, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[de Boer, G.] NOAA Earth Syst Res Lab, Div Phys Sci, Boulder, CO USA.
[de Boer, G.; Menon, Surabi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bauer, S. E.] Columbia Univ, Earth Inst, New York, NY USA.
[Bauer, S. E.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Toto, T.; Vogelmann, A. M.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Menon, Surabi] ClimateWorks Fdn, San Francisco, CA USA.
RP de Boer, G (reprint author), Univ Colorado, NOAA, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
EM gijs.deboer@colorado.edu
RI Vogelmann, Andrew/M-8779-2014; Bauer, Susanne/P-3082-2014
OI Vogelmann, Andrew/0000-0003-1918-5423;
FU Office of Science, Office of Biological and Environmental Research of
the U.S. Department of Energy as part of their Climate and Earth System
Modeling Program [DE-AC02-05CH11231]; FASTER project; National Oceanic
and Atmospheric Administration, U.S. Department of Commerce
[NA17RJ1229]; National Science Foundation [ARC-1203902]; US Department
of Energy [DE-SC0008794]; U.S. DOE [DE-AC02-98CH10886]; NASA High-End
Computing (HEC) Program through the NASA Center for Climate Simulation
(NCCS) at Goddard Space Flight Center; U.S. Department of Energy, Office
of Science, Office of Biological and Environmental Research, Climate and
Environmental Sciences Division
FX This research was supported by the Director, Office of Science, Office
of Biological and Environmental Research of the U.S. Department of
Energy under Contract DE-AC02-05CH11231 as part of their Climate and
Earth System Modeling Program and through the FASTER project. LBNL is
managed by the University of California under the same grant. This work
was prepared in part at the Cooperative Institute for Research in
Environmental Sciences (CIRES) with support in part from the National
Oceanic and Atmospheric Administration, U.S. Department of Commerce,
under cooperative agreement NA17RJ1229 and other grants. The statements,
findings, conclusions, and recommendations are those of the authors and
do not necessarily reflect the views of the National Oceanic and
Atmospheric Administration or the Department of Commerce. GB was
supported in part by the National Science Foundation (ARC-1203902) and
US Department of Energy (DE-SC0008794). Computing resources were
provided by NASA and the US Department of Energy. A.V. wishes to
acknowledge funding from the U.S. DOE (contract DE-AC02-98CH10886).
2NFOV retrievals were generously provided by Christine Chiu, and China
AMF data were provided by Maureen Cribb and Zanquing Li. Resources
supporting this work were provided by the NASA High-End Computing (HEC)
Program through the NASA Center for Climate Simulation (NCCS) at Goddard
Space Flight Center. Data were obtained from the Atmospheric Radiation
Measurement (ARM) Program sponsored by the U.S. Department of Energy,
Office of Science, Office of Biological and Environmental Research,
Climate and Environmental Sciences Division.
NR 45
TC 5
Z9 5
U1 1
U2 16
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6383
EP 6395
DI 10.1002/jgrd.50460
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600035
ER
PT J
AU Davies, L
Jakob, C
Cheung, K
Del Genio, A
Hill, A
Hume, T
Keane, RJ
Komori, T
Larson, VE
Lin, Y
Liu, X
Nielsen, BJ
Petch, J
Plant, RS
Singh, MS
Shi, X
Song, X
Wang, W
Whitall, MA
Wolf, A
Xie, S
Zhang, G
AF Davies, L.
Jakob, C.
Cheung, K.
Del Genio, A.
Hill, A.
Hume, T.
Keane, R. J.
Komori, T.
Larson, V. E.
Lin, Y.
Liu, X.
Nielsen, B. J.
Petch, J.
Plant, R. S.
Singh, M. S.
Shi, X.
Song, X.
Wang, W.
Whitall, M. A.
Wolf, A.
Xie, S.
Zhang, G.
TI A single-column model ensemble approach applied to the TWP-ICE
experiment
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE TWP-ICE; Single Column Model; Ensemble
ID CLOUD-RESOLVING MODELS; GENERAL-CIRCULATION MODELS; LARGE-SCALE MODELS;
BOUNDARY-LAYER; PART I; RADIATIVE PROPERTIES; CONVECTION SCHEME; MOIST
CONVECTION; VERSION-3 CAM3; CLIMATE MODELS
AB Single-column models (SCM) are useful test beds for investigating the parameterization schemes of numerical weather prediction and climate models. The usefulness of SCM simulations are limited, however, by the accuracy of the best estimate large-scale observations prescribed. Errors estimating the observations will result in uncertainty in modeled simulations. One method to address the modeled uncertainty is to simulate an ensemble where the ensemble members span observational uncertainty. This study first derives an ensemble of large-scale data for the Tropical Warm Pool International Cloud Experiment (TWP-ICE) based on an estimate of a possible source of error in the best estimate product. These data are then used to carry out simulations with 11 SCM and two cloud-resolving models (CRM). Best estimate simulations are also performed. All models show that moisture-related variables are close to observations and there are limited differences between the best estimate and ensemble mean values. The models, however, show different sensitivities to changes in the forcing particularly when weakly forced. The ensemble simulations highlight important differences in the surface evaporation term of the moisture budget between the SCM and CRM. Differences are also apparent between the models in the ensemble mean vertical structure of cloud variables, while for each model, cloud properties are relatively insensitive to forcing. The ensemble is further used to investigate cloud variables and precipitation and identifies differences between CRM and SCM particularly for relationships involving ice. This study highlights the additional analysis that can be performed using ensemble simulations and hence enables a more complete model investigation compared to using the more traditional single best estimate simulation only.
C1 [Davies, L.] Monash Univ, Sch Math, Melbourne, Vic 3004, Australia.
[Jakob, C.] Monash Univ, ARC Ctr Excellence Climate Syst Sci, Melbourne, Vic 3004, Australia.
[Cheung, K.] Bur Meteorol, Melbourne, Vic, Australia.
[Del Genio, A.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Hill, A.; Petch, J.] Met Off, Exeter, Devon, England.
[Hume, T.] Bur Meteorol, Ctr Australian Weather & Climate Res, Melbourne, Vic, Australia.
[Keane, R. J.] Univ Munich, Inst Meteorol, D-80539 Munich, Germany.
[Komori, T.] Japan Meteorol Agcy, Tokyo, Japan.
[Larson, V. E.; Nielsen, B. J.] Univ Wisconsin, Milwaukee, WI 53201 USA.
[Lin, Y.] Univ Corp Atmospher Res, Boulder, CO USA.
[Lin, Y.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Liu, X.; Shi, X.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Plant, R. S.; Whitall, M. A.] Univ Reading, Dept Meteorol, Reading, Berks, England.
[Singh, M. S.] MIT, Cambridge, MA 02139 USA.
[Song, X.; Zhang, G.] Univ Calif San Diego, San Diego, CA 92103 USA.
[Wang, W.] NOAA, IMSG, Natl Ctr Environm Predict, College Pk, MD USA.
[Wolf, A.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA.
[Xie, S.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Davies, L (reprint author), Univ Melbourne, Sch Earth Sci, Melbourne, Vic 3010, Australia.
EM laura.davies@unimelb.edu.au
RI Liu, Xiaohong/E-9304-2011; lin, yanluan/A-6333-2015; Xie,
Shaocheng/D-2207-2013; Jakob, Christian/A-1082-2010
OI Liu, Xiaohong/0000-0002-3994-5955; Plant, Robert/0000-0001-8808-0022;
Xie, Shaocheng/0000-0001-8931-5145; Jakob, Christian/0000-0002-5012-3207
FU Office of Science (BER); U.S. Department of Energy [DE-SC0002731]; U.S.
Department of Energy Atmospheric System Research Program; United States
Department of Energy [DE-SC0006927, DE-SC0008668]; National Science
Foundation [AGS-0968640]; U.S. Department of Energy (DOE), Office of
Science, Atmospheric System Research (ASR) program; Battelle Memorial
Institute [DE-AC06-76RLO 1830]; National Natural Science Foundation of
China [41075039]; U.S. Department of Energy (DOE), Office of Science,
Office of Biological and Environmental Research by Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]; Atmospheric Radiation
Measurement Program of the Office of Science at the DOE
FX Davies and Jakob are supported by the Office of Science (BER), U.S.
Department of Energy, under grant DE-SC0002731. Many of the other
coauthors also participated through support from the U.S. Department of
Energy Atmospheric System Research Program. V. Larson and B. Nielsen are
grateful for financial support from the United States Department of
Energy (grants DE-SC0006927 and DE-SC0008668) and the National Science
Foundation (grant AGS-0968640). Support for X. Liu was provided by the
U.S. Department of Energy (DOE), Office of Science, Atmospheric System
Research (ASR) program. The Pacific Northwest National Laboratory is
operated for DOE by Battelle Memorial Institute under contract
DE-AC06-76RLO 1830. Dr. Weiguo Wang is partly supported by the National
Natural Science Foundation of China under Grant No. 41075039. The
contributions of S. Xie to this work were performed under the auspices
of the U.S. Department of Energy (DOE), Office of Science, Office of
Biological and Environmental Research by Lawrence Livermore National
Laboratory under contract No. DE-AC52-07NA27344 and supported by the
Atmospheric Radiation Measurement Program of the Office of Science at
the DOE.
NR 88
TC 13
Z9 13
U1 0
U2 8
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6544
EP 6563
DI 10.1002/jgrd.50450
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600047
ER
PT J
AU Hiranuma, N
Brooks, SD
Moffet, RC
Glen, A
Laskin, A
Gilles, MK
Liu, P
Macdonald, AM
Strapp, JW
McFarquhar, GM
AF Hiranuma, N.
Brooks, S. D.
Moffet, R. C.
Glen, A.
Laskin, A.
Gilles, M. K.
Liu, P.
Macdonald, A. M.
Strapp, J. W.
McFarquhar, G. M.
TI Chemical characterization of individual particles and residuals of cloud
droplets and ice crystals collected on board research aircraft in the
ISDAC 2008 study
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE cloud nuclei; STXM; aerosol; mixed phase; residuals
ID IN-SITU CHARACTERIZATION; ARCTIC AIR-POLLUTION; MIXED-PHASE CLOUDS;
CONDENSATION NUCLEI; AEROSOL-PARTICLES; ATMOSPHERIC AEROSOL; FORMING
NUCLEI; MARINE AIR; SPLAT II; M-PACE
AB Ambient particles and the dry residuals of mixed-phase cloud droplets and ice crystals were collected during the Indirect and Semi-Direct Aerosol Campaign (ISDAC) near Barrow, Alaska, in spring of 2008. The collected particles were analyzed using Computer Controlled Scanning Electron Microscopy with Energy Dispersive X-ray analysis and Scanning Transmission X-ray Microscopy coupled with Near Edge X-ray Absorption Fine Structure spectroscopy to identify physico-chemical properties that differentiate cloud-nucleating particles from the total aerosol population. A wide range of individually mixed components was identified in the ambient particles and residuals including organic carbon compounds, inorganics, carbonates, and black carbon. Our results show that cloud droplet residuals differ from the ambient particles in both size and composition, suggesting that both properties may impact the cloud-nucleating ability of aerosols in mixed-phase clouds. The percentage of residual particles which contained carbonates (47%) was almost four times higher than those in ambient samples. Residual populations were also enhanced in sea salt and black carbon and reduced in organic compounds relative to the ambient particles. Further, our measurements suggest that chemical processing of aerosols may improve their cloud-nucleating ability. Comparison of results for various time periods within ISDAC suggests that the number and composition of cloud-nucleating particles over Alaska can be influenced by episodic events bringing aerosols from both the local vicinity and as far away as Siberia.
C1 [Hiranuma, N.; Brooks, S. D.; Glen, A.] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA.
[Moffet, R. C.; Gilles, M. K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Laskin, A.] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
[Liu, P.; Macdonald, A. M.; Strapp, J. W.] Environm Canada, Sci & Technol Branch, Toronto, ON, Canada.
[McFarquhar, G. M.] Univ Illinois, Dept Atmospher Sci, Urbana, IL 61801 USA.
RP Brooks, SD (reprint author), Texas A&M Univ, 3150 TAMU, College Stn, TX 77843 USA.
EM sbrooks@tamu.edu
RI Hiranuma, Naruki/D-3780-2014; Laskin, Alexander/I-2574-2012;
OI Hiranuma, Naruki/0000-0001-7790-4807; Laskin,
Alexander/0000-0002-7836-8417; McFarquhar, Greg/0000-0003-0950-0135
FU Atmospheric System Research program of the Department of Energy's office
of Biological and Environmental Research; U.S. Department of Energy,
Office of Science, Office of Biological and Environmental Research,
Climate and Environmental Sciences Division; National Science Foundation
NSF-CAREER program [054875]; Lawrence Berkeley National Laboratory
Seaborg Fellowship; BER, DOE [DE-SC0001279, DE-SC0008500]; Office of
Science, Office of Basic Energy Sciences, of the U.S. Department of
Energy [DE-AC02-05CH11231]; Department of Energy's Office of Biological
and Environmental Research at Pacific Northwest National Laboratory;
U.S. Department of Energy by Battelle Memorial Institute [DE-AC06-76RL0]
FX The authors gratefully acknowledge financial support provided by the
Atmospheric System Research program of the Department of Energy's office
of Biological and Environmental Research. Data were obtained from the
Atmospheric Radiation Measurement Program sponsored by the U.S.
Department of Energy, Office of Science, Office of Biological and
Environmental Research, Climate and Environmental Sciences Division. S.
Brooks acknowledges National Science Foundation NSF-CAREER program,
Award 054875. N. Hiranuma acknowledges a Summer Research Institute
Fellow in Interfacial and Condensed Phase Chemical Physics of the
Pacific Northwest National Laboratory. R.C. Moffet acknowledges
additional financial support from a Lawrence Berkeley National
Laboratory Seaborg Fellowship. The work of G. McFarquhar was supported
by BER, DOE under grants DE-SC0001279 and DE-SC0008500. The STXM/NEXAFS
particle analysis was performed at beamlines 11.0.2 and 5.3.2 at the
Advanced Light Source at Lawrence Berkeley National Laboratory. The
expertise of A.L. Kilcoyne and T. Tyliszczak for the STXM work is
gratefully acknowledged. The work at the Advanced Light Source was
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under Contract
DE-AC02-05CH11231. The CCSEM/EDX particle analysis was performed in the
Environmental Molecular Sciences Laboratory, a national scientific user
facility sponsored by the Department of Energy's Office of Biological
and Environmental Research at Pacific Northwest National Laboratory.
PNNL is operated by the U.S. Department of Energy by Battelle Memorial
Institute under Contract DE-AC06-76RL0.
NR 87
TC 18
Z9 18
U1 4
U2 66
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6564
EP 6579
DI 10.1002/jgrd.50484
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600048
ER
PT J
AU Ghan, SJ
Smith, SJ
Wang, MH
Zhang, K
Pringle, KJ
Carslaw, KS
Pierce, JR
Bauer, SE
Adams, PJ
AF Ghan, Steven J.
Smith, Steven J.
Wang, Minghuai
Zhang, Kai
Pringle, Kirsty J.
Carslaw, Kenneth S.
Pierce, Jeffrey R.
Bauer, Susanne E.
Adams, Peter J.
TI A simple model of global aerosol indirect effects
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE aerosol; cloud; interactions; indirect; climate
ID CLOUD CONDENSATION NUCLEI; GENERAL-CIRCULATION MODEL; CARBON-CYCLE
MODELS; CLIMATE MODEL; ORGANIC AEROSOL; MARINE STRATOCUMULUS;
UNCERTAINTY ANALYSIS; MICROPHYSICS MODEL; ATMOSPHERE-OCEAN; SENSITIVITY
AB Most estimates of the global mean indirect effect of anthropogenic aerosol on the Earth's energy balance are from simulations by global models of the aerosol lifecycle coupled with global models of clouds and the hydrologic cycle. Extremely simple models have been developed for integrated assessment models, but lack the flexibility to distinguish between primary and secondary sources of aerosol. Here a simple but more physically based model expresses the aerosol indirect effect (AIE) using analytic representations of cloud and aerosol distributions and processes. Although the simple model is able to produce estimates of AIEs that are comparable to those from some global aerosol models using the same global mean aerosol properties, the estimates by the simple model are sensitive to preindustrial cloud condensation nuclei concentration, preindustrial accumulation mode radius, width of the accumulation mode, size of primary particles, cloud thickness, primary and secondary anthropogenic emissions, the fraction of the secondary anthropogenic emissions that accumulates on the coarse mode, the fraction of the secondary mass that forms new particles, and the sensitivity of liquid water path to droplet number concentration. Estimates of present-day AIEs as low as -5 W m(-2) and as high as -0.3 W m(-2) are obtained for plausible sets of parameter values. Estimates are surprisingly linear in emissions. The estimates depend on parameter values in ways that are consistent with results from detailed global aerosol-climate simulation models, which adds to understanding of the dependence on AIE uncertainty on uncertainty in parameter values.
C1 [Ghan, Steven J.; Smith, Steven J.; Wang, Minghuai; Zhang, Kai] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Pringle, Kirsty J.; Carslaw, Kenneth S.] Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England.
[Pierce, Jeffrey R.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Bauer, Susanne E.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Adams, Peter J.] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA.
RP Ghan, SJ (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM steve.ghan@pnnl.gov
RI Wang, Minghuai/E-5390-2011; Pierce, Jeffrey/E-4681-2013; Carslaw,
Ken/C-8514-2009; Adams, Peter/D-7134-2013; Zhang, Kai/F-8415-2010; Ghan,
Steven/H-4301-2011
OI Wang, Minghuai/0000-0002-9179-228X; Pierce, Jeffrey/0000-0002-4241-838X;
Carslaw, Ken/0000-0002-6800-154X; Adams, Peter/0000-0003-0041-058X;
Zhang, Kai/0000-0003-0457-6368; Ghan, Steven/0000-0001-8355-8699
FU Office of Science of the U.S. Department of Energy as part of the
Atmospheric System Research Program; U.S. Environmental Protection
Agency, Climate Change Division; DOE by Battelle Memorial Institute
[DE-AC06-76RLO 1830]
FX The authors thank colleague Ben Kravitz and reviewers Rob Wood and Chris
Golaz for helpful comments. Support for S. Ghan, M. Wang, and K. Zhang
was provided by the Office of Science of the U.S. Department of Energy
as part of the Atmospheric System Research Program. Support for S. Smith
was provided by the U.S. Environmental Protection Agency, Climate Change
Division. The Pacific Northwest National Laboratory (PNNL) is operated
for the DOE by Battelle Memorial Institute under contract DE-AC06-76RLO
1830.
NR 84
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U1 2
U2 44
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6688
EP 6707
DI 10.1002/jgrd.50567
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600057
ER
PT J
AU Angevine, WM
Brioude, J
McKeen, S
Holloway, JS
Lerner, BM
Goldstein, AH
Guha, A
Andrews, A
Nowak, JB
Evan, S
Fischer, ML
Gilman, JB
Bon, D
AF Angevine, Wayne M.
Brioude, Jerome
McKeen, Stuart
Holloway, John S.
Lerner, Brian M.
Goldstein, Allen H.
Guha, Abhinav
Andrews, Arlyn
Nowak, John B.
Evan, Stephanie
Fischer, Marc L.
Gilman, Jessica B.
Bon, Daniel
TI Pollutant transport among California regions
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Lagrangian Particle Dispersion Model (LPDM); FLEXPART; WRF; Tracer
transport; California; Agricultural emissions
ID LOW-LEVEL WINDS; AIR-QUALITY; MODEL; MESOSCALE; OZONE; SIMULATIONS;
EMISSIONS; SYSTEM; VALLEY; NOX
AB Several regions within California have significant air quality issues. Transport of pollutants emitted in one region to another region may add to the impact of local emissions. In this work, Lagrangian particle dispersion model simulations show the amounts of tracers that are transported within and among four regions, Southern California, the San Francisco Bay Area, the Central Valley, and the rest of the state. The simulations cover May and June of 2010, the California Research at the Nexus of Air Quality and Climate Change experiment period. Tracers of automobile emissions and one type of agricultural emission are used. Tracer mixing ratios are compared to airborne and ground-based measurements. The age of tracers in each location is also presented. Vertical profiles and diurnal cycles help to clarify the transport process. As is well known, Southern California emissions are transported to the east and affect the desert areas, and Bay Area automobile emissions are an important source of pollutants in the San Joaquin Valley. A novel result is that the Southern California Bight is filled with a mixture of well-aged carbon monoxide tracer from Southern California and the Bay Area. Air over the Bight is also affected by the agricultural emissions represented by the agricultural tracer, dominantly from the Central Valley where its sources are largest. There is no indication of transport from Southern California to the Central Valley. Emissions from the Central Valley do make their way to Southern California, as shown by the agricultural tracer, but automobile emissions from the Valley are insignificant in Southern California.
C1 [Angevine, Wayne M.; Brioude, Jerome; McKeen, Stuart; Holloway, John S.; Lerner, Brian M.; Nowak, John B.; Evan, Stephanie; Gilman, Jessica B.; Bon, Daniel] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Angevine, Wayne M.; Brioude, Jerome; McKeen, Stuart; Holloway, John S.; Lerner, Brian M.; Andrews, Arlyn; Nowak, John B.; Evan, Stephanie; Gilman, Jessica B.; Bon, Daniel] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Goldstein, Allen H.; Guha, Abhinav] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Fischer, Marc L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Angevine, WM (reprint author), NOAA, ESRL R CSD4, 325 Broadway, Boulder, CO 80305 USA.
EM Wayne.M.Angevine@noaa.gov
RI Nowak, John/B-1085-2008; Brioude, Jerome/E-4629-2011; Lerner,
Brian/H-6556-2013; Evan, Stephanie/C-2213-2013; Angevine,
Wayne/H-9849-2013; Goldstein, Allen/A-6857-2011; Andrews,
Arlyn/K-3427-2012; Holloway, John/F-9911-2012; Gilman,
Jessica/E-7751-2010; Manager, CSD Publications/B-2789-2015
OI Nowak, John/0000-0002-5697-9807; Lerner, Brian/0000-0001-8721-8165;
Angevine, Wayne/0000-0002-8021-7116; Goldstein,
Allen/0000-0003-4014-4896; Holloway, John/0000-0002-4585-9594; Gilman,
Jessica/0000-0002-7899-9948;
FU NOAA; California Energy Commission (CEC) Public Interest Environmental
Research Program; Office of Science, Office of Basic Energy Sciences, of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX The authors are grateful to Robert Harley for providing the diurnal
cycle of CO and for helpful discussions. Andy Neuman provided helpful
comments on the manuscript. We also wish to thank the NOAA P3 crew,
flight planners, and scientists, and the crew and scientists of the R/V
Atlantis CalNex cruise. The ERA-interim data used to initialize WRF are
from the Research Data Archive (RDA), which is maintained by the
Computational and Information Systems Laboratory (CISL) at the National
Center for Atmospheric Research (NCAR). The original data are available
from the RDA (http://dss.ucar.edu) in data set number ds627.0. Data
collection at Walnut Grove was supported by NOAA and by the California
Energy Commission (CEC) Public Interest Environmental Research Program
and the Director, Office of Science, Office of Basic Energy Sciences, of
the U.S. Department of Energy under contract DE-AC02-05CH11231.
NR 32
TC 13
Z9 13
U1 5
U2 35
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6750
EP 6763
DI 10.1002/jgrd.50490
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600062
ER
PT J
AU Chan, AWH
Isaacman, G
Wilson, KR
Worton, DR
Ruehl, CR
Nah, T
Gentner, DR
Dallmann, TR
Kirchstetter, TW
Harley, RA
Gilman, JB
Kuster, WC
deGouw, JA
Offenberg, JH
Kleindienst, TE
Lin, YH
Rubitschun, CL
Surratt, JD
Hayes, PL
Jimenez, JL
Goldstein, AH
AF Chan, Arthur W. H.
Isaacman, Gabriel
Wilson, Kevin R.
Worton, David R.
Ruehl, Christopher R.
Nah, Theodora
Gentner, Drew R.
Dallmann, Timothy R.
Kirchstetter, Thomas W.
Harley, Robert A.
Gilman, Jessica B.
Kuster, William C.
deGouw, Joost A.
Offenberg, John H.
Kleindienst, Tadeusz E.
Lin, Ying H.
Rubitschun, Caitlin L.
Surratt, Jason D.
Hayes, Patrick L.
Jimenez, Jose L.
Goldstein, Allen H.
TI Detailed chemical characterization of unresolved complex mixtures in
atmospheric organics: Insights into emission sources, atmospheric
processing, and secondary organic aerosol formation
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE semivolatile organic compounds; secondary organic aerosol; urban
emissions; unresolved complex mixture; gas chromatography mass
spectrometry
ID 2-DIMENSIONAL GAS-CHROMATOGRAPHY; AIR-POLLUTION SOURCES; DUTY DIESEL
TRUCKS; MASS-SPECTROMETER; VOLATILITY DISTRIBUTION; N-ALKANES;
SEMIVOLATILE; HYDROCARBONS; EVOLUTION; PHOTOOXIDATION
AB Recent studies suggest that semivolatile organic compounds (SVOCs) are important precursors to secondary organic aerosol (SOA) in urban atmospheres. However, knowledge of the chemical composition of SVOCs is limited by current analytical techniques, which are typically unable to resolve a large number of constitutional isomers. Using a combination of gas chromatography and soft photoionization mass spectrometry, we characterize the unresolved complex mixture (UCM) of semivolatile aliphatic hydrocarbons observed in Pasadena, California (similar to 16km NE of downtown Los Angeles), and Bakersfield, California, during the California Research at the Nexus of Air Quality and Climate Change 2010. To the authors' knowledge, this work represents the most detailed characterization of the UCM in atmospheric samples to date. Knowledge of molecular structures, including carbon number, alkyl branching, and number of rings, provides important constraints on the rate of atmospheric processing, as the relative amounts of branched and linear alkanes are shown to be a function of integrated exposure to hydroxyl radicals. Emissions of semivolatile branched alkanes from fossil fuel-related sources are up to an order of magnitude higher than those of linear alkanes, and the gas-phase OH rate constants of branched alkanes are similar to 30% higher than their linear isomers. Based on a box model considering gas/particle partitioning, emissions, and reaction rates, semivolatile branched alkanes are expected to play a more important role than linear alkanes in the photooxidation of the UCM and subsequent transformations into SOA. Detailed speciation of semivolatile compounds therefore provides essential understanding of SOA sources and formation processes in urban areas.
C1 [Chan, Arthur W. H.; Isaacman, Gabriel; Worton, David R.; Ruehl, Christopher R.; Goldstein, Allen H.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Chan, Arthur W. H.] Univ Toronto, Dept Chem Engn & Appl Chem, Toronto, ON M5S 3E5, Canada.
[Wilson, Kevin R.; Ruehl, Christopher R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Worton, David R.] Aerosol Dynam Inc, Berkeley, CA USA.
[Nah, Theodora] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Gentner, Drew R.; Dallmann, Timothy R.; Kirchstetter, Thomas W.; Harley, Robert A.; Goldstein, Allen H.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Kirchstetter, Thomas W.; Harley, Robert A.; Goldstein, Allen H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Gilman, Jessica B.; deGouw, Joost A.; Hayes, Patrick L.; Jimenez, Jose L.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Gilman, Jessica B.; Kuster, William C.; deGouw, Joost A.] NOAA, Div Chem Sci, Boulder, CO USA.
[Offenberg, John H.; Kleindienst, Tadeusz E.] US EPA, Natl Exposure Lab, Off Res & Dev, Res Triangle Pk, NC 27711 USA.
[Lin, Ying H.; Rubitschun, Caitlin L.; Surratt, Jason D.] Univ N Carolina, Dept Environm Sci & Engn, Gillings Sch Global Publ Hlth, Chapel Hill, NC USA.
[Hayes, Patrick L.; Jimenez, Jose L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
RP Chan, AWH (reprint author), Univ Toronto, Dept Chem Engn & Appl Chem, 200 Coll St, Toronto, ON M5S 3E5, Canada.
EM arthurwh.chan@utoronto.ca
RI Chan, Arthur/I-2233-2013; Jimenez, Jose/A-5294-2008; de Gouw,
Joost/A-9675-2008; Harley, Robert/C-9177-2016; Lin,
Ying-Hsuan/J-4023-2014; Offenberg, John/C-3787-2009; Gilman,
Jessica/E-7751-2010; Manager, CSD Publications/B-2789-2015; Worton,
David/A-8374-2012; Goldstein, Allen/A-6857-2011; Kuster,
William/E-7421-2010; Surratt, Jason/D-3611-2009; Isaacman-VanWertz,
Gabriel/I-5590-2014
OI Chan, Arthur/0000-0001-7392-4237; Dallmann, Timothy/0000-0002-6520-7796;
Jimenez, Jose/0000-0001-6203-1847; de Gouw, Joost/0000-0002-0385-1826;
Harley, Robert/0000-0002-0559-1917; Lin, Ying-Hsuan/0000-0001-8904-1287;
Offenberg, John/0000-0002-0213-4024; Gilman,
Jessica/0000-0002-7899-9948; Worton, David/0000-0002-6558-5586;
Goldstein, Allen/0000-0003-4014-4896; Kuster,
William/0000-0002-8788-8588; Surratt, Jason/0000-0002-6833-1450;
Isaacman-VanWertz, Gabriel/0000-0002-3717-4798
FU National Oceanic and Atmospheric Administration [NA10OAR4310104]; Office
of Energy Research, Office of Basic Energy Sciences, of the U.S.
Department of Energy [DE-AC02-05CH11231]; Laboratory Directed Research
and Development Program of Lawrence Berkeley National Laboratory under
U.S. Department of Energy [DE-AC02-05CH11231]; EPA grant [RD834553];
U.S. Environmental Protection Agency through its Office of Research and
Development [EP-D-10-070]; CARB [08-319/11-305]; DOE (BER/ASR)
[DE-SC0006035]; CIRES Visiting Fellowship
FX This research was supported by the National Oceanic and Atmospheric
Administration under award NA10OAR4310104. The Advanced Light Source as
well as K.R.W. and T.N. were supported by the Director, Office of Energy
Research, Office of Basic Energy Sciences, of the U.S. Department of
Energy under contract DE-AC02-05CH11231. Measurements at the Advanced
Light Source were also supported by the Laboratory Directed Research and
Development Program of Lawrence Berkeley National Laboratory under U.S.
Department of Energy contract DE-AC02-05CH11231. Caldecott tunnel
measurements were supported by EPA grant RD834553. The U.S.
Environmental Protection Agency through its Office of Research and
Development funded and collaborated in the research described here under
contract EP-D-10-070 to Alion Science and Technology. The manuscript has
been subjected to external peer review and has been cleared for
publication. Mention of trade names or commercial products does not
constitute endorsement or recommendation for use. P.L.H. and J.L.J.
thank CARB 08-319/11-305, DOE (BER/ASR) DE-SC0006035, and a CIRES
Visiting Fellowship to P.L.H. The authors would like to thank Sally
Newman for use of temperature data.
NR 47
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U1 6
U2 80
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 27
PY 2013
VL 118
IS 12
BP 6783
EP 6796
DI 10.1002/jgrd.50533
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187OY
UT WOS:000322129600065
ER
PT J
AU Ben Ishai, P
Mamontov, E
Nickels, JD
Sokolov, AP
AF Ben Ishai, Paul
Mamontov, Eugene
Nickels, Jonathan D.
Sokolov, Alexei P.
TI Influence of Ions on Water Diffusion-A Neutron Scattering Study
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID AQUEOUS-SOLUTIONS; RAYLEIGH INTERFEROMETRY; DYNAMICS; HYDRATION;
25-DEGREES-C; COORDINATION; COEFFICIENTS; MOLECULES; CHANNEL; SODIUM
AB Using quasielastic neutron scattering spectroscopy, we measured the averaged translational diffusion of water in solutions of biologically relevant salts, NaCl, a kosmotrope, and KCl, a chaotrope. The analysis revealed the striking difference in the influence of these ions on water dynamics. While the averaged water diffusion slows down in the presence of the structure making (kosmotrope) Na+ ion, the diffusion becomes faster in the presence of the structure breaking (chaotrope) K+ ion. The latter means that, despite strong Coulombic interactions introduced by the K+ ions, their disruption of the hydrogen-bonding network is so significant that it leads to faster diffusion of the water molecules.
C1 [Ben Ishai, Paul] Hebrew Univ Jerusalem, Dept Appl Phys, IL-91904 Jerusalem, Israel.
[Mamontov, Eugene] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
[Ben Ishai, Paul; Nickels, Jonathan D.; Sokolov, Alexei P.] Oak Ridge Natl Lab, Joint Inst Neutron Sci, Oak Ridge, TN 37831 USA.
[Ben Ishai, Paul; Nickels, Jonathan D.; Sokolov, Alexei P.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
RP Ben Ishai, P (reprint author), Hebrew Univ Jerusalem, Dept Appl Phys, IL-91904 Jerusalem, Israel.
RI Ben Ishai, Paul/A-2230-2013; Mamontov, Eugene/Q-1003-2015; Nickels,
Jonathan/I-1913-2012
OI Ben Ishai, Paul/0000-0001-7394-019X; Mamontov,
Eugene/0000-0002-5684-2675; Nickels, Jonathan/0000-0001-8351-7846
FU DOE through the EPSCoR program [DE-FG02-08E1146528]; DOE through the
Scientific User Facilities Division, Office of Basic Energy Sciences;
NSF [CHE-1213444]; Israel Science Foundation (ISF) [465/11]
FX This work was supported by the DOE through the EPSCoR program (grant
DE-FG02-08E1146528) and through the Scientific User Facilities Division,
Office of Basic Energy Sciences. A.P.S. also acknowledges partial
financial support from the NSF Chemistry program (CHE-1213444). P.B.I.
also acknowledges partial financial support from the Israel Science
Foundation (ISF) (Grant No. 465/11).
NR 28
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U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD JUN 27
PY 2013
VL 117
IS 25
BP 7724
EP 7728
DI 10.1021/jp4030415
PG 5
WC Chemistry, Physical
SC Chemistry
GA 175NA
UT WOS:000321236200023
PM 23713450
ER
PT J
AU Perticaroli, S
Nakanishi, M
Pashkovski, E
Sokolov, AP
AF Perticaroli, Stefania
Nakanishi, Masahiro
Pashkovski, Eugene
Sokolov, Alexei P.
TI Dynamics of Hydration Water in Sugars and Peptides Solutions
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID DEPOLARIZED LIGHT-SCATTERING; AMINO-ACID SOLUTIONS; AQUEOUS-SOLUTIONS;
DIELECTRIC-RELAXATION; MODEL PEPTIDES; PROTEIN; GLUCOSE; REORIENTATION;
SPECTROSCOPY; SIMULATIONS
AB We analyzed solute and solvent dynamics of sugars and peptides aqueous solutions using extended depolarized light scattering (EDLS) and broadband dielectric spectroscopies (BDS). Spectra measured with both techniques reveal the same mechanism of rotational diffusion of peptides molecules. In the case of sugars, this solute reorientational relaxation can be isolated by EDLS measurements, whereas its contribution to the dielectric spectra is almost negligible. In the presented analysis, we characterize the hydration water in terms of hydration number and retardation ratio xi between relaxation times of hydration and bulk water. Both techniques provide similar estimates of xi. The retardation imposed on the hydration water by sugars is similar to 3.3 +/- 1.3 and involves only water molecules hydrogen-bonded (HB) to solutes (similar to 3 water molecules per sugar OH-group). In contrast, polar peptides cause longer range perturbations beyond the first hydration shell, and xi between 2.8 and 8, increasing with the number of chemical groups engaged in FIB formation. We demonstrate that chemical heterogeneity and specific HB interactions play a crucial role in hydration dynamics around polar solutes. The obtained results help to disentangle the role of excluded volume and enthalpic contributions in dynamics of hydration water at the interface with biological molecules.
C1 [Perticaroli, Stefania; Nakanishi, Masahiro; Sokolov, Alexei P.] Oak Ridge Natl Lab, Div Chem & Mat Sci, Oak Ridge, TN 37831 USA.
[Perticaroli, Stefania; Nakanishi, Masahiro; Sokolov, Alexei P.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Sokolov, Alexei P.] Oak Ridge Natl Lab, Joint Inst Neutron Sci, Oak Ridge, TN 37831 USA.
[Pashkovski, Eugene] Unilever R&D Trumbull, Trumbull, CT 06611 USA.
RP Perticaroli, S (reprint author), Univ Tennessee, Dept Chem, 552 Buehler Hall,1420 Circle Dr, Knoxville, TN 37996 USA.
EM spertica@utk.edu
RI Nakanishi, Masahiro/J-9497-2014
OI Nakanishi, Masahiro/0000-0003-0844-8363
FU DOE through the EPSCoR program [DE-FG02-08ER46528]; Spallation Neutron
Source (SNS) through UT-Battelle (LLC for the U.S. Department of Energy)
[DEAC05-00OR22725]; Unilever corporate research program
FX We sincerely thank Professor R. Germani for helpful discussions about HB
properties of peptides. This work was supported by DOE through the
EPSCoR program (grant DE-FG02-08ER46528) and by Spallation Neutron
Source (SNS) through UT-Battelle (LLC for the U.S. Department of Energy
under contract No. DEAC05-00OR22725). We also acknowledge the financial
support from the Unilever corporate research program.
NR 45
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD JUN 27
PY 2013
VL 117
IS 25
BP 7729
EP 7736
DI 10.1021/jp403665w
PG 8
WC Chemistry, Physical
SC Chemistry
GA 175NA
UT WOS:000321236200024
PM 23772968
ER
PT J
AU Zhou, CS
Fang, ZGZ
Ren, C
Li, JZ
Lu, J
AF Zhou, Chengshang
Fang, Zhigang Zak
Ren, Chai
Li, Jingzhu
Lu, Jun
TI Effect of Ti Intermetallic Catalysts on Hydrogen Storage Properties of
Magnesium Hydride
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID HYDRIDING/DEHYDRIDING PROPERTIES; DESORPTION PROPERTIES;
COMPOSITE-MATERIALS; SORPTION PROPERTIES; ROOM-TEMPERATURE; MG;
KINETICS; ABSORPTION; SYSTEM; ENERGY
AB Magnesium hydride is a promising candidate for solid-state hydrogen storage and thermal energy storage applications. A series of Ti-based intermetallic alloy (TiAl, Ti3Al, TiNi, TiFe, TiNb, TiMn2, and TiVMn)-doped MgH2 materials were systematically investigated in this study to improve its hydrogen storage properties. The dehydrogenation and hydrogenation properties were studied by using both thermogravimetric analysis and pressure-composition-temperature (PCT) isothermal to characterize the temperature of dehydrogenation and the kinetics of both desorption and absorption of hydrogen by these doped MgH2. Results show significant improvements of both dehydrogenation and hydrogenation kinetics as a result of adding the Ti intermetallic alloys as catalysts. In particular, the TiMn2-doped Mg demonstrated extraordinary hydrogen absorption capability at room temperature and 1 bar hydrogen pressure. The PCT experiments also show that the hydrogen equilibrium pressures of MgH2 were not affected by these additives.
C1 [Zhou, Chengshang; Fang, Zhigang Zak; Ren, Chai; Li, Jingzhu] Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA.
[Lu, Jun] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Fang, ZGZ (reprint author), Univ Utah, Dept Met Engn, 135 South 1460 East,Room 412, Salt Lake City, UT 84112 USA.
EM zak.fang@utah.edu
RI Zhou, Chengshang/L-5850-2015
OI Zhou, Chengshang/0000-0001-9016-6618
FU U.S. Department of Energy (DOE) [DE-AR0000173]; National Science
Foundation [0933778]
FX This research was supported by the U.S. Department of Energy (DOE) under
contract number DE-AR0000173 and National Science Foundation (grant no.
0933778). We would like to thank Dr. Yang Ren and Dr. Xiaoyi Zhang of
Advanced Photon Source of Argonne National Laboratory for their
assistance with the synchrotron XRD analysis.
NR 48
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PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 27
PY 2013
VL 117
IS 25
BP 12973
EP 12980
DI 10.1021/jp402770p
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 175NC
UT WOS:000321236400008
ER
PT J
AU Qadir, K
Kim, SM
Seo, H
Mun, BS
Akgul, FA
Liu, Z
Park, JY
AF Qadir, Kamran
Kim, Sun Mi
Seo, Hyungtak
Mun, Bongjin S.
Akgul, Funda Aksoy
Liu, Zhi
Park, Jeong Young
TI Deactivation of Ru Catalysts under Catalytic CO Oxidation by Formation
of Bulk Ru Oxide Probed with Ambient Pressure XPS
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID RAY PHOTOELECTRON-SPECTROSCOPY; CARBON-MONOXIDE; IN-SITU; SURFACE OXIDE;
ATOMIC-SCALE; NOBLE-METALS; NANOPARTICLES; RUTHENIUM; RH; PLATINUM
AB The surface science approach of using model catalysts in conjunction with the development of in situ spectroscopic tools, such as ambient pressure X-ray photoelectron spectroscopy (AP-XPS), offers a synergistic strategy for obtaining a substantially better understanding of deactivation phenomena. In this study, we investigated the nature of Ru oxides on a Ru polycrystalline film under oxidizing, reducing, and catalytic CO oxidation reaction conditions. Thus, bulk Ru oxide was easily formed on such Ru catalysts, the growth of which was dependent on reaction temperature. Once formed, such an oxide is irreversible and cannot be completely removed even under reducing conditions at elevated temperatures (200 degrees C). Our reaction studies showed substantial deactivation of the Ru film during catalytic CO oxidation, and its activity could be partially recovered after reduction pretreatment. Such continuous deactivation of a Ru film is correlated with irreversibly formed bulk Ru oxide, as shown by AP-XPS. Such in situ spectroscopic evidence of the transition of oxides to a catalytically inactive state can enable more effective design of catalysts with less deactivation.
C1 [Qadir, Kamran; Kim, Sun Mi; Park, Jeong Young] Grad Sch EEWS WCU, Taejon 305701, South Korea.
[Qadir, Kamran; Kim, Sun Mi; Park, Jeong Young] Korea Adv Inst Sci & Technol, NanoCentury ICI, Taejon 305701, South Korea.
[Qadir, Kamran; Kim, Sun Mi; Park, Jeong Young] Inst for Basic Sci Korea, Ctr Nanomat & Chem React, Taejon 305701, South Korea.
[Seo, Hyungtak] Ajou Univ, Dept Mat Sci & Engn, Suwon 443749, South Korea.
[Mun, Bongjin S.] Gwangju Inst Sci & Technol, Dept Phys & Photon Sci, Sch Phys & Chem, Kwangju 500712, South Korea.
[Mun, Bongjin S.] Gwangju Inst Sci & Technol, Ertl Ctr Electrochem & Catalysis, Kwangju 500712, South Korea.
[Akgul, Funda Aksoy] Nigde Univ, Dept Phys, TR-51240 Nigde, Turkey.
[Liu, Zhi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Park, JY (reprint author), Grad Sch EEWS WCU, Taejon 305701, South Korea.
EM jeongypark@kaist.ac.kr
RI Park, Jeong Young/A-2999-2008; Liu, Zhi/B-3642-2009; Qadir,
Kamran/S-8459-2016
OI Liu, Zhi/0000-0002-8973-6561; Qadir, Kamran/0000-0002-0378-2488
FU WCU (World Class University) program through the National Research
Foundation [31-2008-000-10055-0, 2012R1A2A1A01009249]; Research Center
Program of IBS (Institute for Basic Science) [CA1201]; Fundamental R&D
Program for Core Technology of Materials; Ministry of Knowledge Economy,
Republic of Korea
FX This work was supported by the WCU (World Class University) program
(31-2008-000-10055-0 and 2012R1A2A1A01009249) through the National
Research Foundation, the Research Center Program (CA1201) of IBS
(Institute for Basic Science) and from the Fundamental R&D Program for
Core Technology of Materials funded by the Ministry of Knowledge
Economy, Republic of Korea.
NR 44
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U1 3
U2 65
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 27
PY 2013
VL 117
IS 25
BP 13108
EP 13113
DI 10.1021/jp402688a
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 175NC
UT WOS:000321236400022
ER
PT J
AU Wen, XD
Martin, RL
Scuseria, GE
Rudin, SP
Batista, ER
AF Wen, Xiao-Dong
Martin, Richard L.
Scuseria, Gustavo E.
Rudin, Sven P.
Batista, Enrique R.
TI A Screened Hybrid DFT Study of Actinide Oxides, Nitrides, and Carbides
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID ELECTRONIC-STRUCTURE; URANIUM NITRIDE; UO2
AB A systematic study of the structural, electronic, and magnetic properties of actinide oxides, nitrides, and carbides (AnX(1-2) with X = C, N, O) is performed using the Heyd-Scuseria-Ernzerhof (HSE) hybrid functional. Our computed results show that the screened hybrid HSE functional gives a good description of the electronic and structural properties of actinide dioxides (strongly correlated insulators) when compared with available experimental data. However, there are still some problems reproducing the electronic properties of actinide nitrides and carbides (strongly correlated metals). In addition, in order to compare with the results by HSE, the structures, electronic, and magnetic properties of these actinide compounds are also investigated in the PBE and PBE+U approximation. Interestingly, the density of states of UN obtained with PBE compares well with the experimental photoemission spectra, in contrast to the hybrid approximation. This is presumably related to the need of additional screening in the Hartree-Fock exchange term of the metallic phases.
C1 [Wen, Xiao-Dong; Martin, Richard L.; Rudin, Sven P.; Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Scuseria, Gustavo E.] Rice Univ, Dept Chem, Dept Phys & Astron, Houston, TX 77251 USA.
[Scuseria, Gustavo E.] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia.
RP Martin, RL (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM rlmartin@lanl.gov
RI Wen, Xiaodong/G-5227-2011; Faculty of, Sciences, KAU/E-7305-2017
OI Wen, Xiaodong/0000-0001-8161-9742;
FU Heavy Element Chemistry Program at Los Alamos National Laboratory by the
Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy; LDRD program at Los
Alamos National Laboratory; DOE, Office of Basic Energy Sciences, Heavy
Element Chemistry program [DEFG02-04ER15523]; National Nuclear Security
Administration of the U.S. Department of Energy [DE-AC5206NA25396]
FX This work was supported under the Heavy Element Chemistry Program at Los
Alamos National Laboratory by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy. Portions of the work were also supported by the
LDRD program at Los Alamos National Laboratory. X.-D.W. gratefully
acknowledges a Seaborg Institute Fellowship. The work at Rice University
is supported by DOE, Office of Basic Energy Sciences, Heavy Element
Chemistry program, under Grant DEFG02-04ER15523. Some of the
calculations were performed on the Chinook computing systems at the
Molecular Science Computing Facility in the William R. Wiley
Environmental Molecular Sciences Laboratory (EMSL) at PNNL. Some of the
calculations were done on LOBO supercomputer of High Performance
Computing at Los Alamos National Laboratory. The Los Alamos National
Laboratory is operated by Los Alamos National Security, LLC, for the
National Nuclear Security Administration of the U.S. Department of
Energy under Contract DE-AC5206NA25396.
NR 32
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Z9 17
U1 1
U2 74
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 27
PY 2013
VL 117
IS 25
BP 13122
EP 13128
DI 10.1021/jp403141t
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 175NC
UT WOS:000321236400024
ER
PT J
AU Mutz, M
Eastwood, E
Dadmun, MD
AF Mutz, M.
Eastwood, Eric
Dadmun, M. D.
TI Quantifying the Solubility of Boron Nitride Nanotubes and Sheets with
Static Light Scattering and Refractometry
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID WALLED CARBON NANOTUBES; POLYMER COMPOSITES; ORGANIC-SOLVENTS;
DISPERSION; FUNCTIONALIZATION; PARAMETERS
AB The dissolution of nanoparticles, particularly those containing boron, is an important area of interest for polymer nanocomposite formation and material development. In this work, the solubility of boron nitride nanotubes (BNNT), functionalized boron nitride nanotubes (FBNNT), and boron nitride sheets (BN-ZG) is quantified in toluene and THF with static light scattering, refractometry, UV-vis spectroscopy, and physical observations. UV-vis spectroscopy provides a method to determine the concentration and solubility limits of the solutions tested. Using light scattering, the second virial coefficient, A(2), is determined and used to calculate chi, the solute-solvent interaction parameter. The Hildebrand solubility parameter, delta, is then extracted from this data using the Hildebrand-Scatchard Solution Theory. A list of potential good solvents based on the estimated delta value is provided for each nanoparticle. Single-walled carbon nanotubes (SWNTs) and prepolymers (EN4 and EN8) used to synthesize polyurethanes were also tested, because the published delta and molar attraction constants of these materials provided a self-consistent check. The dn/dc of SWNTs and boron-containing particles was measured for the first time in this work. A solvent screen for BN-ZG provides additional information that supports the obtained delta and chi. Three systems were found to have chi values below 0.5 and were thermodynamically soluble: BNNT in THF, EN8 in THF, and EN8 in toluene.
C1 [Mutz, M.; Dadmun, M. D.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Eastwood, Eric] Honeywell Kansas City Plant, Kansas City, MO 64131 USA.
[Dadmun, M. D.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Mutz, M (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
FU Honeywell Federal Manufacturing and Technologies, LLC; Division of
Materials Science and Engineering, U.S. Department of Energy, Office of
Basic Energy Sciences
FX Funding for this research was provided by Honeywell Federal
Manufacturing and Technologies, LLC. M.D. also acknowledges support from
the Division of Materials Science and Engineering, U.S. Department of
Energy, Office of Basic Energy Sciences.
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 27
PY 2013
VL 117
IS 25
BP 13230
EP 13238
DI 10.1021/jp400874f
PG 9
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 175NC
UT WOS:000321236400037
ER
PT J
AU Alvarez, G
AF Alvarez, G.
TI Production of minimally entangled typical thermal states with the
Krylov-space approach
SO PHYSICAL REVIEW B
LA English
DT Article
ID QUANTUM RENORMALIZATION-GROUPS; PHASE-TRANSITIONS; HUBBARD-MODEL;
SYSTEMS; ABSENCE
AB The minimally entangled typical thermal states algorithm is applied to fermionic systems using the Krylov-space approach to evolve the system in imaginary time. The convergence of local observables is studied in a tight-binding system with a site-dependent potential. The temperature dependence of the superconducting correlations of the attractive Hubbard model is analyzed on chains, showing an exponential decay with distance and exponents proportional to the temperature at low temperatures, as expected. In addition, the nonlocal parity correlator is calculated at finite temperature. Other possible applications of the minimally entangled typical thermal states algorithm to fermionic systems are also discussed.
C1 [Alvarez, G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Alvarez, G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Alvarez, G (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
FU Scientific User Facilities Division, Basic Energy Sciences, U.S.
Department of Energy (DOE), under with UT-Battelle; DOE
FX I would like to thank K. Al-Hassanieh, T. Maier, J. Rincon, E. M.
Stoudenmire, and S. R. White for helpful discussions and suggestions.
This research was conducted at the Center for Nanophase Materials
Sciences at Oak Ridge National Laboratory, sponsored by the Scientific
User Facilities Division, Basic Energy Sciences, U.S. Department of
Energy (DOE), under contract with UT-Battelle. I would like to
acknowledge support from the DOE early career research program.
NR 29
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U1 2
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 27
PY 2013
VL 87
IS 24
AR 245130
DI 10.1103/PhysRevB.87.245130
PG 6
WC Physics, Condensed Matter
SC Physics
GA 172JW
UT WOS:000321000300007
ER
PT J
AU Ren, J
Zhu, JX
AF Ren, Jie
Zhu, Jian-Xin
TI Heat diode effect and negative differential thermal conductance across
nanoscale metal-dielectric interfaces
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRONIC KAPITZA CONDUCTANCE; RELAXATION; RESISTANCE; TRANSPORT;
TEMPERATURES; RECTIFIER; LATTICE; FLOW
AB Controlling heat flow by phononic nanodevices has received significant attention recently because of its fundamental and practical implications. Elementary phononic devices such as thermal rectifiers, transistors, and logic gates are essentially based on two intriguing properties: heat diode effect and negative differential thermal conductance. However, little is known about these heat transfer properties across metal-dielectric interfaces, especially at nanoscale. Here we analytically resolve the microscopic mechanism of the nonequilibrium nanoscale energy transfer across metal-dielectric interfaces, where the inelastic electron-phonon scattering directly assists the energy exchange. We demonstrate the emergence of heat diode effect and negative differential thermal conductance in nanoscale interfaces and explain why these novel thermal properties are usually absent in bulk metal-dielectric interfaces. These results will generate exciting prospects for the nanoscale interfacial energy transfer, which should have important implications in designing hybrid circuits for efficient thermal control and open up potential applications in thermal energy harvesting with low-dimensional nanodevices.
C1 [Ren, Jie; Zhu, Jian-Xin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Zhu, Jian-Xin] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Ren, J (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM renjie@lanl.gov
RI Ren, Jie/G-5314-2010
OI Zhu, Jianxin/0000-0001-7991-3918; Ren, Jie/0000-0003-2806-7226
FU National Nuclear Security Administration of the U.S. DOE at LANL
[DE-AC52-06NA25396]; LDRD Program at LANL; Center for Integrated
Nanotechnologies, a U.S. DOE Office of Basic Energy Sciences user
facility
FX This work was supported by the National Nuclear Security Administration
of the U.S. DOE at LANL under Contract No. DE-AC52-06NA25396, and the
LDRD Program at LANL (J.R.), and in part by the Center for Integrated
Nanotechnologies, a U.S. DOE Office of Basic Energy Sciences user
facility (J.-X.Z.).
NR 45
TC 17
Z9 17
U1 2
U2 43
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 27
PY 2013
VL 87
IS 24
AR 241412
DI 10.1103/PhysRevB.87.241412
PG 5
WC Physics, Condensed Matter
SC Physics
GA 172JW
UT WOS:000321000300003
ER
PT J
AU Lutz, O
Neubauer, S
Heck, M
Kuhr, T
Zupanc, A
Adachi, I
Aihara, H
Asner, DM
Aushev, T
Aziz, T
Bakich, AM
Belous, K
Bhardwaj, V
Bhuyan, B
Bondar, A
Bonvicini, G
Bozek, A
Bracko, M
Browder, TE
Chang, P
Chekelian, V
Chen, A
Chen, P
Cheon, BG
Chistov, R
Cho, K
Chobanova, V
Choi, Y
Cinabro, D
Dalseno, J
Danilov, M
Dolezal, Z
Drasal, Z
Dutta, D
Eidelman, S
Epifanov, D
Farhat, H
Fast, JE
Feindt, M
Gaur, V
Gabyshev, N
Ganguly, S
Gillard, R
Goh, YM
Golob, B
Haba, J
Hara, T
Hayasaka, K
Hayashii, H
Hoshi, Y
Hou, WS
Hsiung, YB
Hyun, HJ
Iijima, T
Ishikawa, A
Itoh, R
Iwasaki, Y
Julius, T
Kang, JH
Kapusta, P
Kato, E
Kawasaki, T
Kiesling, C
Kim, HJ
Kim, HO
Kim, JB
Kim, JH
Kim, KT
Kim, MJ
Kinoshita, K
Klucar, J
Ko, BR
Kodys, P
Korpar, S
Kouzes, RT
Krizan, P
Krokovny, P
Kronenbitter, B
Kumita, T
Kuzmin, A
Kwon, YJ
Lange, JS
Lee, SH
Li, Y
Liu, C
Liu, Y
Liventsev, D
Matvienko, D
Miyabayashi, K
Miyata, H
Mohanty, GB
Moll, A
Muller, T
Muramatsu, N
Nakano, E
Nakao, M
Natkaniec, Z
Nayak, M
Nedelkovska, E
Ng, C
Nisar, NK
Nishida, S
Nitoh, O
Ogawa, S
Ohshima, T
Okuno, S
Olsen, SL
Onuki, Y
Oswald, C
Pakhlov, P
Pakhlova, G
Park, H
Park, HK
Pedlar, TK
Pestotnik, R
Petric, M
Piilonen, LE
Prim, M
Ritter, M
Rohrken, M
Sahoo, H
Saito, T
Sakai, Y
Sandilya, S
Santel, D
Santelj, L
Sanuki, T
Sato, Y
Schneider, O
Schnell, G
Schwanda, C
Schwartz, AJ
Senyo, K
Seon, O
Sevior, ME
Shapkin, M
Shebalin, V
Shen, CP
Shibata, TA
Shiu, JG
Shwartz, B
Sibidanov, A
Simon, F
Smerkol, P
Sohn, YS
Sokolov, A
Solovieva, E
Staric, M
Sumihama, M
Sumiyoshi, T
Tatishvili, G
Teramoto, Y
Trabelsi, K
Tsuboyama, T
Uchida, M
Uglov, T
Unno, Y
Uno, S
Usov, Y
Van Hulse, C
Varner, G
Vorobyev, V
Wagner, MN
Wang, CH
Wang, J
Wang, MZ
Wang, P
Watanabe, M
Watanabe, Y
Williams, KM
Won, E
Yamamoto, H
Yamashita, Y
Zhang, ZP
Zhilich, V
Zhulanov, V
AF Lutz, O.
Neubauer, S.
Heck, M.
Kuhr, T.
Zupanc, A.
Adachi, I.
Aihara, H.
Asner, D. M.
Aushev, T.
Aziz, T.
Bakich, A. M.
Belous, K.
Bhardwaj, V.
Bhuyan, B.
Bondar, A.
Bonvicini, G.
Bozek, A.
Bracko, M.
Browder, T. E.
Chang, P.
Chekelian, V.
Chen, A.
Chen, P.
Cheon, B. G.
Chistov, R.
Cho, K.
Chobanova, V.
Choi, Y.
Cinabro, D.
Dalseno, J.
Danilov, M.
Dolezal, Z.
Drasal, Z.
Dutta, D.
Eidelman, S.
Epifanov, D.
Farhat, H.
Fast, J. E.
Feindt, M.
Gaur, V.
Gabyshev, N.
Ganguly, S.
Gillard, R.
Goh, Y. M.
Golob, B.
Haba, J.
Hara, T.
Hayasaka, K.
Hayashii, H.
Hoshi, Y.
Hou, W. -S.
Hsiung, Y. B.
Hyun, H. J.
Iijima, T.
Ishikawa, A.
Itoh, R.
Iwasaki, Y.
Julius, T.
Kang, J. H.
Kapusta, P.
Kato, E.
Kawasaki, T.
Kiesling, C.
Kim, H. J.
Kim, H. O.
Kim, J. B.
Kim, J. H.
Kim, K. T.
Kim, M. J.
Kinoshita, K.
Klucar, J.
Ko, B. R.
Kodys, P.
Korpar, S.
Kouzes, R. T.
Krizan, P.
Krokovny, P.
Kronenbitter, B.
Kumita, T.
Kuzmin, A.
Kwon, Y. -J.
Lange, J. S.
Lee, S. -H.
Li, Y.
Liu, C.
Liu, Y.
Liventsev, D.
Matvienko, D.
Miyabayashi, K.
Miyata, H.
Mohanty, G. B.
Moll, A.
Mueller, T.
Muramatsu, N.
Nakano, E.
Nakao, M.
Natkaniec, Z.
Nayak, M.
Nedelkovska, E.
Ng, C.
Nisar, N. K.
Nishida, S.
Nitoh, O.
Ogawa, S.
Ohshima, T.
Okuno, S.
Olsen, S. L.
Onuki, Y.
Oswald, C.
Pakhlov, P.
Pakhlova, G.
Park, H.
Park, H. K.
Pedlar, T. K.
Pestotnik, R.
Petric, M.
Piilonen, L. E.
Prim, M.
Ritter, M.
Roehrken, M.
Sahoo, H.
Saito, T.
Sakai, Y.
Sandilya, S.
Santel, D.
Santelj, L.
Sanuki, T.
Sato, Y.
Schneider, O.
Schnell, G.
Schwanda, C.
Schwartz, A. J.
Senyo, K.
Seon, O.
Sevior, M. E.
Shapkin, M.
Shebalin, V.
Shen, C. P.
Shibata, T. -A.
Shiu, J. -G.
Shwartz, B.
Sibidanov, A.
Simon, F.
Smerkol, P.
Sohn, Y. -S.
Sokolov, A.
Solovieva, E.
Staric, M.
Sumihama, M.
Sumiyoshi, T.
Tatishvili, G.
Teramoto, Y.
Trabelsi, K.
Tsuboyama, T.
Uchida, M.
Uglov, T.
Unno, Y.
Uno, S.
Usov, Y.
Van Hulse, C.
Varner, G.
Vorobyev, V.
Wagner, M. N.
Wang, C. H.
Wang, J.
Wang, M. -Z.
Wang, P.
Watanabe, M.
Watanabe, Y.
Williams, K. M.
Won, E.
Yamamoto, H.
Yamashita, Y.
Zhang, Z. P.
Zhilich, V.
Zhulanov, V.
CA Belle Collaboration
TI Search for B -> h(()*())nu(nu)over-bar with the full Belle Upsilon(4S)
data sample
SO PHYSICAL REVIEW D
LA English
DT Article
ID DETECTOR
AB We report a search for the rare decays B -> h(()*())nu(nu) over bar, where h(()*()) stands for K+, K-S(0), K*(+), K*(0), pi(+), pi(0), rho(+), rho(0) and phi. The results are obtained from a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We search for signal candidates by fully reconstructing a hadronic decay of the accompanying B meson and requiring a single h(()*()) meson left on the signal side. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The measurements of B+ -> K*(+)nu(nu) over bar, B+ -> pi(+)nu(nu) over bar, B-0 -> pi(0)nu(nu) over bar and B-0 -> rho(0)nu(nu) over bar provide the world's currently most restrictive limits.
C1 [Schnell, G.; Van Hulse, C.] Univ Basque Country UPV EHU, Bilbao 48080, Spain.
[Oswald, C.] Univ Bonn, D-53115 Bonn, Germany.
[Bondar, A.; Eidelman, S.; Gabyshev, N.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Vorobyev, V.; Zhilich, V.; Zhulanov, V.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia.
[Bondar, A.; Eidelman, S.; Gabyshev, N.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Vorobyev, V.; Zhilich, V.; Zhulanov, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Dolezal, Z.; Drasal, Z.; Kodys, P.] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic.
[Kinoshita, K.; Liu, Y.; Santel, D.; Schwartz, A. J.] Univ Cincinnati, Cincinnati, OH 45221 USA.
[Lange, J. S.; Wagner, M. N.] Univ Giessen, D-35392 Giessen, Germany.
[Sumihama, M.] Gifu Univ, Gifu 5011193, Japan.
[Cheon, B. G.; Goh, Y. M.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea.
[Browder, T. E.; Sahoo, H.; Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA.
[Adachi, I.; Haba, J.; Hara, T.; Itoh, R.; Iwasaki, Y.; Liventsev, D.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Tsuboyama, T.; Uno, S.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan.
[Schnell, G.] Ikerbasque, Bilbao 48011, Spain.
[Bhuyan, B.; Dutta, D.] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India.
[Nayak, M.] Indian Inst Technol, Chennai 600036, Tamil Nadu, India.
[Wang, P.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
[Schwanda, C.] Inst High Energy Phys, A-1050 Vienna, Austria.
[Belous, K.; Shapkin, M.; Sokolov, A.] Inst High Energy Phys, Protvino 142281, Russia.
[Aushev, T.; Chistov, R.; Danilov, M.; Pakhlov, P.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Inst Theoret & Expt Phys, Moscow 117218, Russia.
[Bracko, M.; Golob, B.; Klucar, J.; Korpar, S.; Krizan, P.; Pestotnik, R.; Petric, M.; Santelj, L.; Smerkol, P.; Staric, M.] Jozef Stefan Inst, Ljubljana 1000, Slovenia.
[Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan.
[Lutz, O.; Neubauer, S.; Heck, M.; Kuhr, T.; Zupanc, A.; Feindt, M.; Kronenbitter, B.; Mueller, T.; Prim, M.; Roehrken, M.] Karlsruher Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany.
[Cho, K.; Kim, J. H.] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea.
[Kim, J. B.; Kim, K. T.; Ko, B. R.; Lee, S. -H.; Won, E.] Korea Univ, Seoul 136713, South Korea.
[Hyun, H. J.; Kim, H. J.; Kim, H. O.; Kim, M. J.; Park, H.; Park, H. K.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland.
[Golob, B.; Krizan, P.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia.
[Pedlar, T. K.] Luther Coll, Decorah, IA 52101 USA.
[Bracko, M.; Korpar, S.] Univ Maribor, SLO-2000 Maribor, Slovenia.
[Chekelian, V.; Chobanova, V.; Dalseno, J.; Kiesling, C.; Moll, A.; Nedelkovska, E.; Ritter, M.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Julius, T.; Sevior, M. E.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Danilov, M.; Pakhlov, P.] Moscow Phys Engn Inst, Moscow 115409, Russia.
[Uglov, T.] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia.
[Iijima, T.; Ohshima, T.; Seon, O.; Shen, C. P.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan.
[Hayasaka, K.; Iijima, T.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan.
[Bhardwaj, V.; Hayashii, H.; Miyabayashi, K.] Nara Womens Univ, Nara 6308506, Japan.
[Chen, A.] Natl Cent Univ, Chungli 32054, Taiwan.
[Wang, C. H.] Natl United Univ, Miaoli 36003, Taiwan.
[Chang, P.; Chen, P.; Hou, W. -S.; Hsiung, Y. B.; Shiu, J. -G.; Wang, M. -Z.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.
[Bozek, A.; Kapusta, P.; Natkaniec, Z.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Yamashita, Y.] Nippon Dent Univ, Niigata 9518580, Japan.
[Kawasaki, T.; Miyata, H.; Watanabe, M.] Niigata Univ, Niigata 9502181, Japan.
[Nakano, E.; Teramoto, Y.] Osaka City Univ, Osaka 5588585, Japan.
[Asner, D. M.; Fast, J. E.; Kouzes, R. T.; Tatishvili, G.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Wang, J.] Peking Univ, Beijing 100871, Peoples R China.
[Muramatsu, N.] Tohoku Univ, Res Ctr Electron Photon Sci, Sendai, Miyagi 9808578, Japan.
[Liu, C.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Olsen, S. L.] Seoul Natl Univ, Seoul 151742, South Korea.
[Choi, Y.] Sungkyunkwan Univ, Suwon 440746, South Korea.
[Bakich, A. M.; Sibidanov, A.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Aziz, T.; Gaur, V.; Mohanty, G. B.; Nisar, N. K.; Sandilya, S.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India.
[Dalseno, J.; Moll, A.; Simon, F.] Tech Univ Munich, Excellence Cluster Universe, D-85748 Garching, Germany.
[Ogawa, S.] Toho Univ, Funabashi, Chiba 2748510, Japan.
[Hoshi, Y.] Tohoku Gakuin Univ, Tagajo, Miyagi 9858537, Japan.
[Ishikawa, A.; Kato, E.; Saito, T.; Sanuki, T.; Sato, Y.; Yamamoto, H.] Tohoku Univ, Sendai, Miyagi 9808578, Japan.
[Aihara, H.; Epifanov, D.; Ng, C.; Onuki, Y.] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan.
[Shibata, T. -A.; Uchida, M.] Tokyo Inst Technol, Tokyo 1528550, Japan.
[Kumita, T.; Sumiyoshi, T.] Tokyo Metropolitan Univ, Tokyo 1920397, Japan.
[Nitoh, O.] Tokyo Univ Agr & Technol, Koganei, Tokyo 1848588, Japan.
[Li, Y.; Piilonen, L. E.; Williams, K. M.] Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA.
[Bonvicini, G.; Cinabro, D.; Farhat, H.; Ganguly, S.; Gillard, R.] Wayne State Univ, Detroit, MI 48202 USA.
[Senyo, K.] Yamagata Univ, Yamagata 9908560, Japan.
[Kang, J. H.; Kwon, Y. -J.; Sohn, Y. -S.] Yonsei Univ, Seoul 120749, South Korea.
RP Lutz, O (reprint author), Univ Basque Country UPV EHU, Bilbao 48080, Spain.
RI Pakhlova, Galina/C-5378-2014; Solovieva, Elena/B-2449-2014; Aihara,
Hiroaki/F-3854-2010; Ishikawa, Akimasa/G-6916-2012; Nitoh,
Osamu/C-3522-2013; Pakhlov, Pavel/K-2158-2013; Uglov,
Timofey/B-2406-2014; Danilov, Mikhail/C-5380-2014; Krokovny,
Pavel/G-4421-2016; Chistov, Ruslan/B-4893-2014
OI Pakhlova, Galina/0000-0001-7518-3022; Solovieva,
Elena/0000-0002-5735-4059; Aihara, Hiroaki/0000-0002-1907-5964; Pakhlov,
Pavel/0000-0001-7426-4824; Uglov, Timofey/0000-0002-4944-1830; Danilov,
Mikhail/0000-0001-9227-5164; Krokovny, Pavel/0000-0002-1236-4667;
Chistov, Ruslan/0000-0003-1439-8390
FU MEXT (Japan); JSPS (Japan); Nagoya's TLPRC (Japan); ARC (Australia);
DIISR (Australia); NSFC (China); MSMT (Czechia); Carl Zeiss Foundation
(Germany); DFG (Germany); DST (India); INFN (Italy); MEST (Korea); NRF
(Korea); GSDC of KISTI (Korea); WCU (Korea); MNiSW (Poland); MES
(Russia); RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC
(Taiwan); MOE (Taiwan); DOE (USA); NSF (USA)
FX We thank the KEKB group for excellent operation of the accelerator; the
KEK cryogenics group for efficient solenoid operations; and the KEK
computer group, the NII, and PNNL/EMSL for valuable computing and SINET4
network support. We acknowledge support from MEXT, JSPS and Nagoya's
TLPRC (Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia);
the Carl Zeiss Foundation and the DFG (Germany); DST (India); INFN
(Italy); MEST, NRF, GSDC of KISTI, and WCU (Korea); MNiSW (Poland); MES
and RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC and MOE
(Taiwan); and DOE and NSF (USA).
NR 33
TC 21
Z9 21
U1 1
U2 14
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 27
PY 2013
VL 87
IS 11
AR 111103
DI 10.1103/PhysRevD.87.111103
PG 7
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 172KE
UT WOS:000321001100001
ER
PT J
AU Kogan, VG
AF Kogan, V. G.
TI Homes scaling and BCS
SO PHYSICAL REVIEW B
LA English
DT Article
ID TEMPERATURE; SUPERCONDUCTORS
AB It is argued on the basis of the BCS theory that the zero-T penetration depth satisfies lambda(-2)(0) alpha sigma T-c (sigma is the normal state dc conductivity) not only in the extreme dirty limit xi(0)/l >> 1, but in a broad range of scattering parameters down to xi(0)/l similar to 1 (xi(0) is the zero-T BCS coherence length and l is the mean free path). Hence, the scaling lambda(-2)(0) alpha sigma T-c, sTc, suggested as a new universal property of superconductors [Dordevic, Basov, and Homes, Sci. Rep. 3, 1713 (2013)], finds a natural explanation within the BCS theory.
C1 US DOE, Ames Lab, Ames, IA 50011 USA.
RP Kogan, VG (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA.
FU Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-AC02-07CH11358]
FX The author is grateful to S. Bud'ko, P. Canfield, R. Prozorov, J. Clem,
V. Taufour, and H. Kim for interest and help. Discussions with C. Homes
were welcome and encouraging. The Ames Laboratory is supported by the
Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358.
NR 11
TC 7
Z9 7
U1 1
U2 12
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 27
PY 2013
VL 87
IS 22
AR 220507
DI 10.1103/PhysRevB.87.220507
PG 2
WC Physics, Condensed Matter
SC Physics
GA 172JS
UT WOS:000320999800001
ER
PT J
AU Jing, YC
Hao, Y
Litvinenko, VN
AF Jing, Yichao
Hao, Yue
Litvinenko, Vladimir N.
TI Compensating effect of the coherent synchrotron radiation in bunch
compressors
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID FREE-ELECTRON LASER; EXTREME-ULTRAVIOLET; OPERATION
AB Typical bunch compression for a high-gain free-electron laser (FEL) requires a large compression ratio. Frequently, this compression is distributed in multiple stages along the beam transport line. However, for a high-gain FEL driven by an energy recovery linac (ERL), compression must be accomplished in a single strong compressor located at the beam line's end; otherwise the electron beam would be affected severely by coherent synchrotron radiation (CSR) in the ERL's arcs. In such a scheme, the CSR originating from the strong compressors could greatly degrade the quality of the electron beam. In this paper, we present our design for a bunch compressor that will limit the effect of CSR on the e-beam's quality. We discuss our findings from a study of such a compressor, and detail its potential for an FEL driven by a multipass ERL developed for the electron-Relativistic Heavy Ion Collider.
C1 [Jing, Yichao; Hao, Yue; Litvinenko, Vladimir N.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Jing, YC (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM yjing@bnl.gov
FU Brookhaven Science Associates, LLC [DE-AC02-98CH10886]; U.S. Department
of Energy
FX This work is supported by Brookhaven Science Associates, LLC under
Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
NR 29
TC 8
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U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 27
PY 2013
VL 16
IS 6
AR 060704
DI 10.1103/PhysRevSTAB.16.060704
PG 7
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 172KL
UT WOS:000321001800001
ER
PT J
AU Kaiser, BLD
Li, J
Sanford, JA
Kim, YM
Kronewitter, SR
Jones, MB
Peterson, CT
Peterson, SN
Frank, BC
Purvine, SO
Brown, JN
Metz, TO
Smith, RD
Heffron, F
Adkins, JN
AF Kaiser, Brooke L. Deatherage
Li, Jie
Sanford, James A.
Kim, Young-Mo
Kronewitter, Scott R.
Jones, Marcus B.
Peterson, Christine T.
Peterson, Scott N.
Frank, Bryan C.
Purvine, Samuel O.
Brown, Joseph N.
Metz, Thomas O.
Smith, Richard D.
Heffron, Fred
Adkins, Joshua N.
TI A Multi-Omic View of Host-Pathogen-Commensal Interplay in
Salmonella-Mediated Intestinal Infection
SO PLOS ONE
LA English
DT Article
ID ENTERICA SEROVAR TYPHIMURIUM; MASS-SPECTROMETRY; MICROBIAL ECOLOGY;
VIRULENCE FACTORS; MUCIN DYNAMICS; IMMUNE-SYSTEM; SP NOV.; RESISTANCE;
PROTEIN; CELLS
AB The potential for commensal microorganisms indigenous to a host (the 'microbiome' or 'microbiota') to alter infection outcome by influencing host-pathogen interplay is largely unknown. We used a multi-omics "systems'' approach, incorporating proteomics, metabolomics, glycomics, and metagenomics, to explore the molecular interplay between the murine host, the pathogen Salmonella enterica serovar Typhimurium (S. Typhimurium), and commensal gut microorganisms during intestinal infection with S. Typhimurium. We find proteomic evidence that S. Typhimurium thrives within the infected 129/SvJ mouse gut without antibiotic pre-treatment, inducing inflammation and disrupting the intestinal microbiome (e. g., suppressing Bacteroidetes and Firmicutes while promoting growth of Salmonella and Enterococcus). Alteration of the host microbiome population structure was highly correlated with gut environmental changes, including the accumulation of metabolites normally consumed by commensal microbiota. Finally, the less characterized phase of S. Typhimurium's lifecycle was investigated, and both proteomic and glycomic evidence suggests S. Typhimurium may take advantage of increased fucose moieties to metabolize fucose while growing in the gut. The application of multiple omics measurements to Salmonella-induced intestinal inflammation provides insights into complex molecular strategies employed during pathogenesis between host, pathogen, and the microbiome.
C1 [Kaiser, Brooke L. Deatherage; Sanford, James A.; Kim, Young-Mo; Kronewitter, Scott R.; Brown, Joseph N.; Metz, Thomas O.; Smith, Richard D.; Adkins, Joshua N.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Li, Jie; Heffron, Fred] Oregon Hlth & Sci Univ, Dept Mol Microbiol & Immunol, Portland, OR 97201 USA.
[Jones, Marcus B.; Peterson, Christine T.; Peterson, Scott N.; Frank, Bryan C.] J Craig Venter Inst, Dept Infect Dis, Rockville, MD USA.
[Purvine, Samuel O.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Adkins, JN (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM Joshua.Adkins@pnnl.gov
RI Smith, Richard/J-3664-2012; Kim, Young-Mo/D-3282-2009;
OI Smith, Richard/0000-0002-2381-2349; Kim, Young-Mo/0000-0002-8972-7593;
Adkins, Joshua/0000-0003-0399-0700; Metz, Tom/0000-0001-6049-3968
FU National Institute of Allergy and Infectious Diseases NIH/DHHS
[Y1-AI-8401, R01AI022933-022A1]; U.S. Department of Energy Office of
Biological and Environmental Research (DOE/BER) [8 P41 GM103493-10];
Pacific Northwest National Laboratory [DE-AC05-76RLO1830]
FX (This work was supported in part by the National Institute of Allergy
and Infectious Diseases NIH/DHHS through interagency agreement
Y1-AI-8401 (project websitewww.SysBEP.org with links to raw data) and
Grant R01AI022933-022A1. This work used instrumentation and capabilities
developed under support from the National Institute of General Medical
Sciences grant 8 P41 GM103493-10 and the U.S. Department of Energy
Office of Biological and Environmental Research (DOE/BER). Significant
portions of this work were performed in the Environmental Molecular
Sciences Laboratory, a DOE/BER national scientific user facility located
at Pacific Northwest National Laboratory. The Pacific Northwest National
Laboratory is operated for the DOE by Battelle under Contract
DE-AC05-76RLO1830. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 59
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U1 2
U2 43
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 26
PY 2013
VL 8
IS 6
AR e67155
DI 10.1371/journal.pone.0067155
PG 13
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 178DN
UT WOS:000321424400076
ER
PT J
AU Koenigsmann, C
Semple, DB
Sutter, E
Tobierre, SE
Wong, SS
AF Koenigsmann, Christopher
Semple, Dara Bobb
Sutter, Eli
Tobierre, Sybil E.
Wong, Stanislaus S.
TI Ambient Synthesis of High-Quality Ruthenium Nanowires and the
Morphology-Dependent Electrocatalytic Performance of Platinum-Decorated
Ruthenium Nanowires and Nanoparticles in the Methanol Oxidation Reaction
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE direct methanol fuel cells; electrocatctlysis; one-dimensional
nanostructures; noble metals; template-based synthesis;
morphology-dependent behavior
ID OXYGEN REDUCTION REACTION; CO MONOLAYER OXIDATION; FUEL-CELLS; ANODE
ELECTROCATALYSTS; ETHANOL OXIDATION; CATALYSTS; RU; PTRU; SIZE;
ELECTROOXIDATION
AB We report for the first time (a) the synthesis of elemental ruthenium nanowires (Ru NWs), (b) a method for modifying their surfaces with platinum (Pt), and (c) the morphology-dependent methanol oxidation reaction (MOR) performance of high quality Pt modified Ru NW electrocatalysts. The synthesis of our elemental Ru NWs has been accomplished utilizing a template-based method under ambient conditions. As-prepared Ru NWs are crystalline and elementally pure, maintain electrochemical properties analogous to elemental Ru, and can be generated with average diameters ranging from 44 to 280 nm. We rationally examine the morphology-dependent performance of the Ru NWs by comparison with commercial Ru nanoparticle (NP)/carbon (C) systems after decorating the surfaces of these structures With Pt. We have demonstrated that the deposition of Pt onto the Ru NWs (Pt Ru NWs) results in a unique hierarchical structure, wherein the deposited Pt exists as discrete clusters on the surface. By contrast, we find that the Pt-decorated commercial Ru NP/C (Pt similar to Ru NP/C) results in the formation of an alloy-type NP. The Pt Ru NPs (0.61 A/mg of Pt) possess nearly 2-fold higher Pt mass activity than analogous Pt similar to Ru NW electrocatalysts (0.36 A/mg of Pt). On the basis of a long-term durability test, it is apparent that both catalysts undergo significant declines in performance, potentially resulting from aggregation and ripening in the case of Pt Ru NP/C and the effects of catalyst poisoning in the Pt similar to Ru NWs. At the conclusion of the test, both catalysts maintain comparable performance, despite a slightly enhanced performance in Pt similar to Ru NP/C. In addition, the measured mass-normalized MOR activity of the Pt similar to Ru NWs (0.36 A/mg of Pt) was significantly enhanced as compared with supported elemental Pt (Pt NP/C, 0.09 A/mg of Pt) and alloy-type PtRu (PtRu NP/C, 0.24 A/mg of Pt) NPs, both serving as commercial standards.
C1 [Koenigsmann, Christopher; Semple, Dara Bobb; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Sutter, Eli] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Tobierre, Sybil E.; Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Wong, SS (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
EM stanislaus.wong@stonybrook.edu
FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; U.S. Department of Energy [DE-AC02-98CH10886]
FX Research (including support for S.S.W. and electrochemical experiments)
was supported by the U.S. Department of Energy, Basic Energy Sciences,
Materials Sciences and Engineering Division. Support for experimental
supplies was also provided by Sigma Xi through its Grants-in-Aid of
Research Program. We acknowledge Dr. R. R. Adzic and Dr. M. B.
Vukmirovic (Brookhaven National Laboratory) for relevant, helpful
discussions and assistance with obtaining electrochemical measurements.
We also thank Dr. J. Quinn and Dr. A. C. Santulli for their assistance
with obtaining SEM and EDAX measurements. Experiments for this
manuscript were performed, in part, at the Center for Functional
Nanomaterials located at Brookhaven National Laboratory, which is
supported by the U.S. Department of Energy under Contract
DE-AC02-98CH10886.
NR 59
TC 19
Z9 19
U1 4
U2 78
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD JUN 26
PY 2013
VL 5
IS 12
BP 5518
EP 5530
DI 10.1021/am4007462
PG 13
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 175NI
UT WOS:000321237000019
PM 23742154
ER
PT J
AU Saha, D
Payzant, EA
Kumbhar, AS
Naskar, AK
AF Saha, Dipendu
Payzant, E. Andrew
Kumbhar, Amar S.
Naskar, Amit K.
TI Sustainable Mesoporous Carbons as Storage and Controlled-Delivery Media
for Functional Molecules
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE mesoporous carbon; lignin; soft-templating; drug delivery; sustainable
materials
ID DRUG-DELIVERY; ADSORPTION; POLYMERS; RELEASE; TRANSFORMATION;
SCATTERING; FRAMEWORKS; NANOTUBES; SIEVES; BLOCK
AB Here, we report the synthesis of surfactant-templated mesoporous carbons from lignin, which is a biomass-derived polymeric precursor, and their potential use as a controlled-release medium for functional molecules such as pharmaceuticals. To the best of our knowledge, this is the first report on the use of lignin for chemical-activation-free synthesis of functional mesoporous carbon. The synthesized carbons possess the pore widths within the range of 2.5-12.0 nm. In this series of mesoporous carbons, our best result demonstrates a Brunauer-Emmett-Teller (BET) surface area of 418 m(2)/g and a mesopore volume of 0.34 cm(3)/g, which is twice the micropore volume in this carbon. Because of the dominant mesoporosity, this engineered carbon demonstrates adsorption and controlled release of a representative pharmaceutical drug, captopril, in simulated gastric fluid. Large-scale utilization of these sustainable mesoporous carbons in applications involving adsorption, transport, and controlled release of functional molecules is desired for industrial processes that yield lignin as a coproduct.
C1 [Saha, Dipendu; Naskar, Amit K.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Carbon & Composites Grp, Oak Ridge, TN 37831 USA.
[Payzant, E. Andrew] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
[Kumbhar, Amar S.] Univ N Carolina, Inst Adv Mat NanoSci & Technol, Chapel Hill, NC 27599 USA.
RP Naskar, AK (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Carbon & Composites Grp, Oak Ridge, TN 37831 USA.
EM naskarak@ornl.gov
RI Payzant, Edward/B-5449-2009
OI Payzant, Edward/0000-0002-3447-2060
FU Laboratory Directed Research and Development Program of ORNL; Division
of Scientific User Facilities, U.S. Department of Energy
FX Research was sponsored by the Laboratory Directed Research and
Development Program of ORNL, managed by UT-Battelle, LLC, for the U.S.
Department of Energy. Scattering experiments were conducted at the
Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge
National Laboratory (ORNL) by the Division of Scientific User
Facilities, U.S. Department of Energy. We thank Dr. Gerald E. Jellison
for support with UV-vis spectroscopy. The authors gratefully acknowledge
the generous donation of Pluronic F127 by BASF.
NR 34
TC 31
Z9 31
U1 3
U2 85
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD JUN 26
PY 2013
VL 5
IS 12
BP 5868
EP 5874
DI 10.1021/am401661f
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 175NI
UT WOS:000321237000064
PM 23731336
ER
PT J
AU Gin, S
Ryan, JV
Schreiber, DK
Neeway, J
Cabie, M
AF Gin, S.
Ryan, J. V.
Schreiber, D. K.
Neeway, J.
Cabie, M.
TI Contribution of atom-probe tomography to a better understanding of glass
alteration mechanisms: Application to a nuclear glass specimen altered
25 years in a granitic environment
SO CHEMICAL GEOLOGY
LA English
DT Article
DE Nuclear glass; Atom probe tomography; Interdiffusion; Alteration layers;
Long-term rate
ID BOROSILICATE GLASSES; WASTE GLASS; WATER PENETRATION; SILICATE-GLASSES;
DISSOLUTION RATE; SURFACE-LAYERS; 1ST PRINCIPLES; RICH SOLUTIONS;
ION-EXCHANGE; GRAAL MODEL
AB We report and discuss results of atom probe tomography (APT) and energy-filtered transmission electron microscopy (EFTEM) applied to a borosilicate glass sample of nuclear interest altered for 25.75 years at 90 degrees C in a confined granitic medium in order to better understand the rate-limiting mechanisms under conditions representative of a deep geological repository for vitrified radioactive waste. The APT technique allows the 3D reconstruction of the elemental distribution at the reactive interphase with sub-nanometer precision. Profiles of the B distribution at pristine glass/hydrated glass interface obtained by different techniques are compared to show the challenge of accurate measurements of diffusion profiles at this buried interface on the nanometer length scale. Our results show that 1) Li from the glass and hydrogen from the solution exhibit anti-correlated 15 nm wide gradients located between the pristine glass and the hydrated glass layer, and 2) boron exhibits an unexpectedly sharp profile (similar to 3 nm width) located just outside of the Li/H interdiffusion layer; this sharp profile is more consistent with a dissolution front than a diffusion-controlled release of boron. The resulting apparent diffusion coefficients derived from the Li and H profiles are D-Li = 1.5 x 10(-22) M-2.s(-1) and D-H = 6.8 x 10(-23) M-2.s(-1). These values are around two orders of magnitude lower than those observed at the very beginning of the alteration process, which suggests that interdiffusion is slowed at high reaction progress by local conditions that could be related to the porous structure of the interphase. As a result, the accessibility of water to the pristine glass could be the rate-limiting step in these conditions. More generally, these findings strongly support the importance of interdiffusion coupled with hydrolysis reactions of the silicate network on the long-term dissolution rate, contrary to what has been suggested by recent interfacial dissolution-precipitation models for silicate minerals. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Gin, S.] CPA Marcoule DTCD SECM LCLT, F-30207 Bagnols Sur Ceze, France.
[Ryan, J. V.; Schreiber, D. K.; Neeway, J.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Cabie, M.] Aix Marseille Univ, CP2M, F-13397 Marseille, France.
RP Gin, S (reprint author), CPA Marcoule DTCD SECM LCLT, F-30207 Bagnols Sur Ceze, France.
EM stephane.gin@cea.fr; joe.ryan@pnnl.gov; daniel.schreiber@pnnl.gov;
james.neeway@pnnl.gov; martiane.cabie@univ-amu.fr
OI Neeway, Jim/0000-0001-7046-8408
FU DOE Offices of Nuclear Energy and Environmental Management; Department
of Energy (DOE) Office of Biological and Environmental Research and
located at PNNL
FX The glass alteration experiment was conducted at CEA of Marcoule and
followed for 26 years by Jean-Pierre Mestre. EFTEM analyses were
performed at Aix-Marseille Universite. APT analyses and some of the
FIB-based sample preparation were performed at the Environmental
Molecular Science Laboratory (EMSL), a national scientific user facility
sponsored by the Department of Energy (DOE) Office of Biological and
Environmental Research and located at PNNL. This work is part of a
jointly funded effort by the DOE Offices of Nuclear Energy and
Environmental Management.
NR 74
TC 45
Z9 45
U1 9
U2 75
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0009-2541
EI 1878-5999
J9 CHEM GEOL
JI Chem. Geol.
PD JUN 26
PY 2013
VL 349
BP 99
EP 109
DI 10.1016/j.chemgeo.2013.04.001
PG 11
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 180NL
UT WOS:000321601800008
ER
PT J
AU Sevov, CS
Hartwig, JF
AF Sevov, Christo S.
Hartwig, John F.
TI Iridium-Catalyzed, Intermolecular Hydroetherification of Unactivated
Aliphatic Alkenes with Phenols
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID CARBOXYLIC-ACIDS; OXIDATIVE ADDITION; ASYMMETRIC HYDROAMINATION;
HYDROALKOXYLATION; ALCOHOLS; OLEFINS; ALKYNES; ALKYLATION; COMPLEXES;
ALLENES
AB Metal-catalyzed addition of an O-H bond to an alkene is a desirable process because it allows for rapid access to ethers from abundant starting materials without the formation of waste, without rearrangements, and with the possibility to control the stereoselectivity. We report the intermolecular,, metal-catalyzed addition of phenols to unactivated alpha-olefins. Mechanistic studies of this rare catalytic reaction revealed a dynamic mixture of resting states that undergo O-H bond oxidative addition and subsequent olefin insertion to form ether products.
C1 [Hartwig, John F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Berkeley, CA 94720 USA.
RP Hartwig, JF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
EM jhartwig@berkeley.edu
FU U.S. Department of Energy [DE-AC02-05CH11231]; NSF
FX We thank the U.S. Department of Energy (DE-AC02-05CH11231) for support,
Johnson-Matthey for a gift of [Ir(cod)Cl]2, and Takasago for
a gift of (S)-DTBM-Segphos. C.S.S. thanks the NSF for a Graduate
Research Fellowship.
NR 41
TC 19
Z9 19
U1 6
U2 90
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 26
PY 2013
VL 135
IS 25
BP 9303
EP 9306
DI 10.1021/ja4052153
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA 175NE
UT WOS:000321236600018
PM 23758128
ER
PT J
AU Shokri, A
Wang, XB
Kass, SR
AF Shokri, Alireza
Wang, Xue-Bin
Kass, Steven R.
TI Electron-Withdrawing Trifluoromethyl Groups in Combination with Hydrogen
Bonds in Polyols: Bronsted Acids, Hydrogen-Bond Catalysts, and Anion
Receptors
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID DIELS-ALDER REACTIONS; DIMETHYL-SULFOXIDE SOLUTION;
PHOTOELECTRON-SPECTROSCOPY; EQUILIBRIUM ACIDITIES; ASYMMETRIC CATALYSIS;
DENSITY FUNCTIONALS; MANNICH REACTIONS; DIOLS; THERMOCHEMISTRY;
PHOTODETACHMENT
AB Electron-withdrawing trifluoromethyl groups were characterized in combination with hydrogen bond interactions in three polyols (i.e., CF3CH(OH)CH2CH(OH)CF3, 1; (CF3)(2)C(OH)C-(OH)(CF3)(2), 2; ((CF3)(2)C(OH)CH2)(2)CHOH, 3) by pK(a) measurements in DMSO and H2O, negative ion photoelectron spectroscopy and binding constant determinations with Cl-. Their catalytic behavior in several reactions were also examined and compared to a Bronsted acid (HOAc) and a commonly employed thiourea ((3,5-(CF3)(2)C6H3NH)(2)CS). The combination of inductive stabilization and hydrogen bonds was found to afford potent acids which are effective catalysts. It also appears that hydrogen bonds can transmit the inductive effect over distance even in an aqueous environment, and this has far reaching implications.
C1 [Shokri, Alireza; Kass, Steven R.] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA.
[Wang, Xue-Bin] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
[Wang, Xue-Bin] Washington State Univ, Dept Phys, Richland, WA 99354 USA.
RP Wang, XB (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, POB 999,MS K8-88, Richland, WA 99352 USA.
EM kass@umn.edu; xuebin.wang@pnnl.gov
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy (DOE); DOE's Office of
Biological and Environmental Research
FX We thank Dr. K. Murphy for preparing and separating the two
diastereomers of 1. Generous support from the National Science
Foundation, the Petroleum Research Fund as administered by the ACS and
the Minnesota Supercomputer Institute for Advanced Computational
Research are gratefully acknowledged. The photoelectron spectra work was
supported by the Division of Chemical Sciences, Geosciences, and
Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy
(DOE), and was performed at the EMSL, a national scientific user
facility sponsored by DOE's Office of Biological and Environmental
Research and located at Pacific Northwest National Laboratory, which is
operated by Battelle for DOE.
NR 58
TC 26
Z9 26
U1 1
U2 55
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 26
PY 2013
VL 135
IS 25
BP 9525
EP 9530
DI 10.1021/ja4036384
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA 175NE
UT WOS:000321236600054
PM 23725455
ER
PT J
AU Hoarty, DJ
Allan, P
James, SF
Brown, CRD
Hobbs, LMR
Hill, MP
Harris, JWO
Morton, J
Brookes, MG
Shepherd, R
Dunn, J
Chen, H
Von Marley, E
Beiersdorfer, P
Chung, HK
Lee, RW
Brown, G
Emig, J
AF Hoarty, D. J.
Allan, P.
James, S. F.
Brown, C. R. D.
Hobbs, L. M. R.
Hill, M. P.
Harris, J. W. O.
Morton, J.
Brookes, M. G.
Shepherd, R.
Dunn, J.
Chen, H.
Von Marley, E.
Beiersdorfer, P.
Chung, H. K.
Lee, R. W.
Brown, G.
Emig, J.
TI Observations of the Effect of Ionization-Potential Depression in Hot
Dense Plasma
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID LASER-SHOCKED SOLIDS; TARGETS; SPECTRA; SHIFT; EDGE
AB The newly commissioned Orion laser system has been used to study dense plasmas created by a combination of short pulse laser heating and compression by laser driven shocks. Thus the plasma density was systematically varied between 1 and 10 g/cc by using aluminum samples buried in plastic foils or diamond sheets. The aluminum was heated to electron temperatures between 500 and 700 eV allowing the plasma conditions to be diagnosed by K-shell emission spectroscopy. The K-shell spectra show the effect of the ionization potential depression as a function of density. The data are compared to simulated spectra which account for the change in the ionization potential by the commonly used Stewart and Pyatt prescription and an alternative due to Ecker and Kroll suggested by recent x-ray free-electron laser experiments. The experimental data are in closer agreement with simulations using the model of Stewart and Pyatt.
C1 [Hoarty, D. J.; Allan, P.; James, S. F.; Brown, C. R. D.; Hobbs, L. M. R.; Hill, M. P.; Harris, J. W. O.; Morton, J.; Brookes, M. G.] AWE Plc, Directorate Res & Appl Sci, Reading RG7 4PR, Berks, England.
[Shepherd, R.; Dunn, J.; Chen, H.; Von Marley, E.; Beiersdorfer, P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Chung, H. K.; Brown, G.; Emig, J.] IAEA, Div Phys & Chem Sci, Nucl Data Sect, A-1400 Vienna, Austria.
[Lee, R. W.] Univ Calif Berkeley, Inst Mat Dynam Extreme Condit, Berkeley, CA 94720 USA.
RP Hoarty, DJ (reprint author), AWE Plc, Directorate Res & Appl Sci, Reading RG7 4PR, Berks, England.
OI Hill, Matthew/0000-0002-0307-0624
FU DOE [DE-AC52-07NA-27344]
FX The authors would like to thank the laser and facility staff of the
Orion laser and D. Lavender for engineering support and the staff of AWE
target fabrication. Work at the Lawrence Livermore National Laboratory
was performed under the auspices of the DOE under Contract No.
DE-AC52-07NA-27344.
NR 20
TC 51
Z9 51
U1 2
U2 32
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 26
PY 2013
VL 110
IS 26
AR 265003
DI 10.1103/PhysRevLett.110.265003
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 172HE
UT WOS:000320990800013
PM 23848885
ER
PT J
AU Litvinenko, VN
Derbenev, YS
AF Litvinenko, Vladimir N.
Derbenev, Yaroslav S.
TI Comment on "Coherent Electron Cooling" Reply
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
C1 [Litvinenko, Vladimir N.] BNL, Upton, NY 11973 USA.
[Derbenev, Yaroslav S.] JLab, Newport News, VA 23606 USA.
RP Litvinenko, VN (reprint author), BNL, Upton, NY 11973 USA.
NR 6
TC 1
Z9 1
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 26
PY 2013
VL 110
IS 26
AR 269504
DI 10.1103/PhysRevLett.110.269504
PG 2
WC Physics, Multidisciplinary
SC Physics
GA 172HE
UT WOS:000320990800026
PM 23848932
ER
PT J
AU Stupakov, G
Zolotorev, MS
AF Stupakov, G.
Zolotorev, M. S.
TI Comment on "Coherent Electron Cooling"
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
C1 [Stupakov, G.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Zolotorev, M. S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Beam Phys, Berkeley, CA 94720 USA.
RP Stupakov, G (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
NR 3
TC 3
Z9 3
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 26
PY 2013
VL 110
IS 26
AR 269503
DI 10.1103/PhysRevLett.110.269503
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 172HE
UT WOS:000320990800025
PM 23848931
ER
PT J
AU Xu, HX
Stoller, RE
Osetsky, YN
Terentyev, D
AF Xu, Haixuan
Stoller, Roger E.
Osetsky, Yury N.
Terentyev, Dmitry
TI Solving the Puzzle of < 100 > Interstitial Loop Formation in bcc Iron
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NEUTRON IRRADIATION DAMAGE; HEAVY-ION IRRADIATIONS; FE-CR ALLOYS;
DISLOCATION LOOPS; ALPHA-IRON; RADIATION-DAMAGE; THIN-FOILS; MOLYBDENUM;
EVOLUTION; CLUSTERS
AB The interstitial loop is a unique signature of radiation damage in structural materials for nuclear and other advanced energy systems. Unlike other bcc metals, two types of interstitial loops, 1/2 < 111 > and < 100 >, are formed in bcc iron and its alloys. However, the mechanism by which < 100 > interstitial dislocation loops are formed has remained undetermined since they were first observed more than fifty years ago. We describe our atomistic simulations that have provided the first direct observation of < 100 > loop formation. The process was initially observed using our self-evolving atomistic kinetic Monte Carlo method, and subsequently confirmed using molecular dynamics simulations. Formation of < 100 > loops involves a distinctly atomistic interaction between two 1/2 < 111 > loops, and does not follow the conventional assumption of dislocation theory, which is Burgers vector conservation between the reactants and the product. The process observed is different from all previously proposed mechanisms. Thus, our observations might provide a direct link between experiments and simulations and new insights into defect formation that may provide a basis to increase the radiation resistance of these strategic materials.
C1 [Xu, Haixuan; Stoller, Roger E.; Osetsky, Yury N.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Terentyev, Dmitry] CEN SCK, Nucl Mat Sci Inst, B-2400 Mol, Belgium.
RP Xu, HX (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM xuh1@ornl.gov
RI Xu, Haixuan/C-9841-2009;
OI Osetskiy, Yury/0000-0002-8109-0030
FU U.S. Department of Energy, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division, "Center for Defect Physics," an
Energy Frontier Research Center
FX Research sponsored by the U.S. Department of Energy, Office of Basic
Energy Sciences, Materials Sciences and Engineering Division, "Center
for Defect Physics," an Energy Frontier Research Center. The authors
would like to thank G. M. Stocks, D. J. Bacon, and A. Barashev for their
valuable comments on the manuscript.
NR 33
TC 29
Z9 29
U1 2
U2 64
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 26
PY 2013
VL 110
IS 26
AR 265503
DI 10.1103/PhysRevLett.110.265503
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 172HE
UT WOS:000320990800016
PM 23848895
ER
PT J
AU Karrasch, C
Hauschild, J
Langer, S
Heidrich-Meisner, F
AF Karrasch, C.
Hauschild, J.
Langer, S.
Heidrich-Meisner, F.
TI Drude weight of the spin-1/2 XXZ chain: Density matrix renormalization
group versus exact diagonalization
SO PHYSICAL REVIEW B
LA English
DT Article
ID HEISENBERG-MODEL; TRANSPORT; INTEGRABILITY; CONDUCTIVITY; TEMPERATURES;
STIFFNESS; DYNAMICS; SYSTEMS
AB We revisit the problem of the spin Drude weight D of the integrable spin-1/2 XXZ chain using two complementary approaches, exact diagonalization (ED) and the time-dependent density-matrix renormalization group (tDMRG). We pursue two main goals. First, we present extensive results for the temperature dependence of D. By exploiting time translation invariance within tDMRG, one can extract D for significantly lower temperatures than in previous tDMRG studies. Second, we discuss the numerical quality of the tDMRG data and elaborate on details of the finite-size scaling of the ED results, comparing calculations carried out in the canonical and grand-canonical ensembles. Furthermore, we analyze the behavior of the Drude weight as the point with SU(2)-symmetric exchange is approached and discuss the relative contribution of the Drude weight to the sum rule as a function of temperature.
C1 [Karrasch, C.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 95720 USA.
[Karrasch, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Hauschild, J.; Langer, S.; Heidrich-Meisner, F.] Univ Munich, Dept Phys, D-80333 Munich, Germany.
[Hauschild, J.; Langer, S.; Heidrich-Meisner, F.] Univ Munich, Arnold Sommerfeld Ctr Theoret Phys, D-80333 Munich, Germany.
[Langer, S.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Heidrich-Meisner, F.] Univ Erlangen Nurnberg, Inst Theoret Phys 2, D-91054 Erlangen, Germany.
RP Karrasch, C (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 95720 USA.
RI Heidrich-Meisner, Fabian/B-6228-2009; Karrasch, Christoph/S-5716-2016
OI Karrasch, Christoph/0000-0002-6475-3584
FU Deutsche Forschungsgemeinschaft [KA3360-1/1]; Nanostructured
Thermoelectrics program of LBNL; Deutsche Forschungsgemeinschaft through
Research unit FOR 912 [HE-5242/2-2]
FX We thank W. Brenig, J. E. Moore, T. Prosen, and F. Verstraete for very
helpful discussions and we thank A. Klumper for his comments on a
previous version of the manuscript and for sending us data from Ref. 48.
We gratefully acknowledge support from to the Deutsche
Forschungsgemeinschaft through grant-no. KA3360-1/1 (C.K.) and through
Research unit FOR 912 [Grant No. HE-5242/2-2 (J.H. and F.H.-M.)] as well
as from the Nanostructured Thermoelectrics program of LBNL (C.K.).
NR 71
TC 37
Z9 37
U1 0
U2 12
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 26
PY 2013
VL 87
IS 24
AR 245128
DI 10.1103/PhysRevB.87.245128
PG 10
WC Physics, Condensed Matter
SC Physics
GA 172FO
UT WOS:000320985600004
ER
PT J
AU Kohley, Z
Liang, JF
Shapira, D
Gross, CJ
Varner, RL
Allmond, JM
Kolata, JJ
Mueller, PE
Roberts, A
AF Kohley, Z.
Liang, J. F.
Shapira, D.
Gross, C. J.
Varner, R. L.
Allmond, J. M.
Kolata, J. J.
Mueller, P. E.
Roberts, A.
TI Sub-barrier fusion enhancement with radioactive Te-134
SO PHYSICAL REVIEW C
LA English
DT Article
ID HEAVY-ION FUSION; NUCLEON-TRANSFER; COULOMB BARRIER; COUPLINGS;
ENERGIES; FISSION; NI+SN; MODEL
AB The fusion cross sections of radioactive Te-134 + Ca-40 were measured at energies above and below the Coulomb barrier. The evaporation residues produced in the reaction were detected in a zero-degree ionization chamber providing high efficiency for inverse kinematics. Both coupled-channel calculations and comparison with similar Sn + Ca systems indicate an increased sub-barrier fusion probability that is correlated with the presence of positive Q-value neutron transfer channels. In comparison, the measured fusion excitation functions of Te-130 + Ni-58,Ni-64, which have positive Q-value neutron transfer channels, were accurately reproduced by coupled-channel calculations including only inelastic excitations. The results demonstrate that the coupling of transfer channels can lead to enhanced sub-barrier fusion but this is not directly correlated with positive Q-value neutron transfer channels in all cases.
C1 [Kohley, Z.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Kohley, Z.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Kohley, Z.; Liang, J. F.; Shapira, D.; Gross, C. J.; Varner, R. L.; Mueller, P. E.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Allmond, J. M.] Oak Ridge Natl Lab, Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
[Kolata, J. J.; Roberts, A.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP Kohley, Z (reprint author), Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
EM kohley@nscl.msu.edu
OI Allmond, James Mitchell/0000-0001-6533-8721
FU DOE Office of Nuclear Physics; NSF [PHY11-02511, PHY09-69456]
FX We thank Dr. K. Hagino for the providing the CCFULL code. We also thank
the staff members of the Holifield Radioactive Ion Beam Facility for the
excellent quality radioactive and stable beams. This research was
supported by the DOE Office of Nuclear Physics and NSF Grants No.
PHY11-02511 and No. PHY09-69456.
NR 52
TC 15
Z9 15
U1 0
U2 14
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
EI 1089-490X
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 26
PY 2013
VL 87
IS 6
AR 064612
DI 10.1103/PhysRevC.87.064612
PG 6
WC Physics, Nuclear
SC Physics
GA 172FY
UT WOS:000320986800004
ER
PT J
AU Sobczyk, JT
Zmuda, J
AF Sobczyk, Jan T.
Zmuda, Jakub
TI Impact of nuclear effects on weak pion production at energies below 1
GeV
SO PHYSICAL REVIEW C
LA English
DT Article
ID NEUTRINO INTERACTIONS; SCATTERING; EXCITATION; RESONANCES; DEUTERIUM;
REGION
AB Charged-current single-pion production in scattering off C-12 is investigated for neutrino energies up to 1 GeV. A model of Nieves et al. [Phys. Rev. C 83, 045501 (2011)] is further developed by performing exact integration and avoiding several approximations. The effect of exact integration is investigated both for double-differential and total neutrino-nucleus cross sections. The impact of nuclear effects with in-medium modifications of the Delta(1232) resonance properties as well as an effective field theory nonresonant background contribution are discussed. The dependence of the fraction of Delta(1232) decays into n-particle-n-hole states on incident neutrino energy is estimated. The impact of various ingredients of the model on the ratio of muon to electron neutrino cross sections is investigated in detail.
C1 [Sobczyk, Jan T.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Sobczyk, Jan T.; Zmuda, Jakub] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland.
RP Sobczyk, JT (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM jazmuda@ift.uni.wroc.pl
RI Sobczyk, Jan/C-9761-2016
FU [4525/PB/IFT/11 (UMO-2011/01/N/ST2/03224)]; [4574/PB/IFT/12
(UMO-2011/01/M/ST2/02578)]
FX J.Z. would like to thank L. Alvarez-Ruso, K. Graczyk, and J. Nieves for
many fruitful discussions. This work was sponsored by Grants No.
4525/PB/IFT/11 (UMO-2011/01/N/ST2/03224) and No. 4574/PB/IFT/12
(UMO-2011/01/M/ST2/02578).
NR 43
TC 3
Z9 3
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 26
PY 2013
VL 87
IS 6
AR 065503
DI 10.1103/PhysRevC.87.065503
PG 16
WC Physics, Nuclear
SC Physics
GA 172FY
UT WOS:000320986800006
ER
PT J
AU Cao, C
Ford, D
Bishnoi, S
Proslier, T
Albee, B
Hommerding, E
Korczakowski, A
Cooley, L
Ciovati, G
Zasadzinski, JF
AF Cao, C.
Ford, D.
Bishnoi, S.
Proslier, T.
Albee, B.
Hommerding, E.
Korczakowski, A.
Cooley, L.
Ciovati, G.
Zasadzinski, J. F.
TI Detection of surface carbon and hydrocarbons in hot spot regions of
niobium superconducting rf cavities by Raman spectroscopy
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID AUGMENTED-WAVE METHOD; CRYSTAL-STRUCTURE; HYDROGEN; SYSTEMS
AB Raman microscopy/spectroscopy measurements are presented on high purity niobium (Nb) samples, including pieces from hot spot regions of a tested superconducting rf cavity that exhibit a high density of etch pits. Measured spectra are compared with density functional theory calculations of Raman-active, vibrational modes of possible surface Nb-O and Nb-H complexes. The Raman spectra inside particularly rough pits in all Nb samples show clear differences from surrounding areas, exhibiting enhanced intensity and sharp peaks. While some of the sharp peaks are consistent with calculated NbH and NbH2 modes, there is better overall agreement with C-H modes in chain-type hydrocarbons. Other spectra reveal two broader peaks attributed to amorphous carbon. Niobium foils annealed to >2000 degrees C in high vacuum develop identical Raman peaks when subjected to cold working. Regions with enhanced C and O have also been found by SEM/EDX spectroscopy in the hot spot samples and cold-worked foils, corroborating the Raman results. Such regions with high concentrations of impurities are expected to suppress the local superconductivity and this may explain the correlation between hot spots in superconducting rf (SRF) cavities and the observation of a high density of surface pits. The origin of localized high carbon and hydrocarbon regions is unclear at present but it is suggested that particular processing steps in SRF cavity fabrication may be responsible.
C1 [Cao, C.; Bishnoi, S.; Albee, B.; Hommerding, E.; Korczakowski, A.; Zasadzinski, J. F.] IIT, Dept Phys, Chicago, IL 60616 USA.
[Cao, C.; Proslier, T.; Zasadzinski, J. F.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Ford, D.; Cooley, L.] Fermilab Natl Accelerator Lab, Superconducting Mat Dept, Tech Div, Batavia, IL 60510 USA.
[Ford, D.] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA.
[Ciovati, G.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RP Zasadzinski, JF (reprint author), IIT, Dept Phys, Chicago, IL 60616 USA.
EM zasadzinski@iit.edu
RI Cooley, Lance/E-7377-2015
OI Cooley, Lance/0000-0003-3488-2980
FU DOE-HEP through FNAL Laboratory; U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; UChicago
Argonne, LLC [DE-AC02-06CH11357]; U.S. Department of Energy Office of
Science laboratory [DE-AC02-06CH11357]; United States Department of
Energy [DE-AC02-07CH11359]
FX This work was supported by DOE-HEP through FNAL Laboratory-University
Collaboration to Understand Performance Limits of SRF Cavities. Use of
the Center for Nanoscale Materials was supported by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357. The electron microscopy was accomplished
at the Electron Microscopy Center for Materials Research at Argonne
National Laboratory, a U.S. Department of Energy Office of Science
Laboratory operated under Contract No. DE-AC02-06CH11357 by UChicago
Argonne, LLC. Argonne, a U.S. Department of Energy Office of Science
laboratory, is operated under Contract No. DE-AC02-06CH11357. The
calculations were performed at Fermi National Accelerator Laboratory,
which is operated by Fermi Research Alliance, LLC under Contract No.
DE-AC02-07CH11359 with the United States Department of Energy.
NR 37
TC 11
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U1 2
U2 21
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 26
PY 2013
VL 16
IS 6
AR 064701
DI 10.1103/PhysRevSTAB.16.064701
PG 9
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 172HI
UT WOS:000320991200001
ER
PT J
AU Moore, DB
Beekman, M
Disch, S
Zschack, P
Hausler, I
Neumann, W
Johnson, DC
AF Moore, Daniel B.
Beekman, Matt
Disch, Sabrina
Zschack, Paul
Haeusler, Ines
Neumann, Wolfgang
Johnson, David C.
TI Synthesis, Structure, and Properties of Turbostratically Disordered
(PbSe)(1.18)(TiSe2)(2)
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE misfit layered compounds; ferecrystals; turbostratic disorder
ID MISFIT LAYER COMPOUND; CRYSTAL-STRUCTURE DETERMINATION;
TRANSPORT-PROPERTIES; DIFFRACTION; ORIENTATION; SULFIDE
AB Synthesis and structural characterization of a turbostratically disordered polymorph of (PbSe)(1.18)(TiSe2)(2) is reported. The structure of this compound consists of an intergrowth between one distorted rock salt structured PbSe bilayer and two transition metal dichalcogenide structured Se-Ti-Se trilayers. In addition to the lattice mismatch, there is extensive rotational disorder between these constituents. The electrical resistivity of (PbSe)(1.18)(TiSe2)(2) is a factor of 9 lower at room temperature, and the Seebeck coefficient is almost double that reported for the crystalline misfit layered compound analogue.
C1 [Moore, Daniel B.; Beekman, Matt; Disch, Sabrina; Neumann, Wolfgang; Johnson, David C.] Univ Oregon, Dept Chem, Eugene, OR 97401 USA.
[Beekman, Matt] Oregon Inst Technol, Dept Nat Sci, Klamath Falls, OR 97601 USA.
[Disch, Sabrina] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France.
[Zschack, Paul] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Haeusler, Ines] Humboldt Univ, Inst Phys, D-10099 Berlin, Germany.
RP Johnson, DC (reprint author), Univ Oregon, Dept Chem, Eugene, OR 97401 USA.
RI Beekman, Matt/I-4470-2014; Disch, Sabrina/K-7185-2013
OI Beekman, Matt/0000-0001-9694-2286; Disch, Sabrina/0000-0002-4565-189X
FU National Science Foundation [DMR 0907049, MRI 0923577]; ONR
[N000141110193]; National Science Foundation through CCI Grant
[CHE-1102637]; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-AC02-06CH11357]
FX The authors acknowledge support from the National Science Foundation
under Grant DMR 0907049 and Grant MRI 0923577. Co-author W.N.
acknowledges support from ONR Award No. N000141110193. Coauthors S.D.
and D.C.J. acknowledge support from the National Science Foundation
through CCI Grant CHE-1102637. The authors thank Jenia Karapetrova at
33-BM-C and Doug Robinson at 6-ID-D for technical assistance during
collection of the synchrotron XRD data. Use of the Advanced Photon
Source was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
NR 29
TC 25
Z9 25
U1 6
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD JUN 25
PY 2013
VL 25
IS 12
BP 2404
EP 2409
DI 10.1021/cm400090f
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 173QI
UT WOS:000321093600005
ER
PT J
AU Britt, DK
Yoon, Y
Ercius, P
Ewers, TD
Alivisatos, AP
AF Britt, David K.
Yoon, Yoseob
Ercius, Peter
Ewers, Trevor D.
Alivisatos, A. Paul
TI Hexameric Octahedral Clusters of PbSe Nanocrystals Grown from Amorphous
Lead(II) Carboxylate Nanoparticles
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE nanocrystal synthesis; lead selenide; oriented attachment; electron
tomography
ID ORIENTED ATTACHMENT; ELECTRON-MICROSCOPY
AB We describe the synthesis and three-dimensional structure of a new single-crystalline "hexameric" nanocrystal composed of six near-spherical PbSe nanocrystals arranged at the vertices of an octahedron. We examine the detailed three-dimensional structure of these nanocrystals using electron tomography and demonstrate single-crystal to single-crystal cation exchange to CdSe. We reveal that the growth of these nanocrystals, which form under conditions similar to other anisotropic PbSe nanocrystals, depends on the initial presence of lead oleate particles with approximate diameters of 1.7-3.1 nm that form upon heating lead(II) acetate hydrate in the presence of oleic acid. These lead oleate particles, which are visible by transmission electron microscopy, constitute the beginning of nearly every synthesis of anisotropic PbSe nanocrystals. We show that the lead oleate particles play a definitive role in determining the morphology of the resultant PbSe nanocrystals. We note that the acetate anion, which was previously identified as the key factor in achieving anisotropic PbSe growth, greatly accelerates the formation of the lead oleate particles, and thus appears to be responsible for the subsequent PbSe morphology. However, we demonstrate that acetate is not required for lead oleate particle formation, nor indeed for anisotropic PbSe growth. The potential role of these new particles in other PbSe synthetic preparations from lead(II) oleate is of high interest for future study.
C1 [Britt, David K.; Yoon, Yoseob; Ewers, Trevor D.; Alivisatos, A. Paul] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Ercius, Peter] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RP Alivisatos, AP (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM alivis@berkeley.edu
RI Britt, David/D-4675-2009; Yoon, Yoseob/D-5400-2013; Foundry,
Molecular/G-9968-2014; Alivisatos , Paul /N-8863-2015
OI Yoon, Yoseob/0000-0002-8832-897X; Alivisatos , Paul /0000-0001-6895-9048
FU U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; Physical Chemistry
of Inorganic Nanostructures Program, Office of Science, Office of Basic
Energy Sciences, of the United States Department of Energy
[DE-AC02-05CH11231]
FX Electron Microscopy facilities in the National Center for Electron
Microscopy (NCEM) at Lawrence Berkeley National Laboratory are supported
by the U.S. Department of Energy (DOE) under contract no.
DE-AC02-05CH11231. Work on nanocrystal synthesis and characterization
was supported by the Physical Chemistry of Inorganic Nanostructures
Program, Director, Office of Science, Office of Basic Energy Sciences,
of the United States Department of Energy under contract
DE-AC02-05CH11231.
NR 22
TC 9
Z9 9
U1 2
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD JUN 25
PY 2013
VL 25
IS 12
BP 2544
EP 2548
DI 10.1021/cm401083g
PG 5
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 173QI
UT WOS:000321093600023
ER
PT J
AU Abelev, B
Adam, J
Adamova, D
Adare, AM
Aggarwal, MM
Rinella, GA
Agnello, M
Agocs, AG
Agostinelli, A
Ahammed, Z
Ahmad, N
Masoodi, AA
Ahn, SU
Ahn, SA
Ajaz, M
Akindinov, A
Aleksandrov, D
Alessandro, B
Alici, A
Alkin, A
Avina, EA
Alme, J
Alt, T
Altini, V
Altinpinar, S
Altsybeev, I
Andrei, C
Andronic, A
Anguelov, V
Anielski, J
Anson, C
Anticic, T
Antinori, F
Antonioli, P
Aphecetche, L
Appelshauser, H
Arbor, N
Arcelli, S
Arend, A
Armesto, N
Arnaldi, R
Aronsson, T
Arsene, IC
Arslandok, M
Asryan, A
Augustinus, A
Averbeck, R
Awes, TC
Aysto, J
Azmi, MD
Bach, M
Badala, A
Baek, YW
Bailhache, R
Bala, R
Ferroli, RB
Baldisseri, A
Pedrosa, FBD
Ban, J
Baral, RC
Barbera, R
Barile, F
Barnafoldi, GG
Barnby, LS
Barret, V
Bartke, J
Basile, M
Bastid, N
Basu, S
Bathen, B
Batigne, G
Batyunya, B
Baumann, C
Bearden, IG
Beck, H
Behera, NK
Belikov, I
Bellini, F
Bellwied, R
Belmont-Moreno, E
Bencedi, G
Beole, S
Berceanu, I
Bercuci, A
Berdnikov, Y
Berenyi, D
Bergognon, AAE
Berzano, D
Betev, L
Bhasin, A
Bhati, AK
Bhom, J
Bianchi, N
Bianchi, L
Bielcik, J
Bielcikova, J
Bilandzic, A
Bjelogrlic, S
Blanco, F
Blanco, F
Blau, D
Blume, C
Boccioli, M
Ringer, S
Bogdanov, A
Boggild, H
Bogolyubsky, M
Boldizsar, L
Bombara, M
Book, J
Borel, H
Borissov, A
Bossu, F
Botje, M
Botta, E
Braidot, E
Braun-Munzinger, P
Bregant, M
Breitner, T
Broker, TA
Browning, TA
Broz, M
Brun, R
Bruna, E
Bruno, GE
Budnikov, D
Buesching, H
Bufalino, S
Buncic, R
Busch, O
Buthelezi, Z
Caffarri, D
Cai, X
Caines, H
Villar, EC
Camerini, R
Roman, VC
Romeo, GC
Carena, F
Carena, W
Carlin, N
Carminati, F
Diaz, AC
Castellanos, JC
Hernandez, JFC
Casula, EAR
Catanescu, V
Cavicchioli, C
Sanchez, CC
Cepila, J
Cerello, P
Chang, B
Chapeland, S
Charvet, JL
Chattopadhyay, S
Chattopadhyay, S
Chawla, I
Cherney, M
Cheshkov, C
Cheynis, B
Barroso, VC
Chinellato, DD
Chochula, P
Chojnacki, M
Choudhury, S
Christakoglou, P
Christensen, CH
Christiansen, P
Chujo, T
Chung, SU
Cicalo, C
Cifarelli, L
Cindolo, E
Cleymans, J
Coccetti, E
Colamaria, F
Colella, D
Collu, A
Balbastre, GC
del Valle, ZC
Connors, ME
Contin, G
Contreras, JG
Cormier, TM
Morales, YC
Cortese, P
Maldonado, IC
Cosentino, MR
Costa, F
Cotallo, ME
Crescio, E
Crochet, P
Alaniz, EC
Albino, RC
Cuautle, E
Cunqueiro, L
Dainese, A
Dalsgaard, HH
Danu, A
Das, S
Das, D
Das, K
Das, I
Dash, S
Dash, A
De, S
de Barros, GOV
De Caro, A
de Cataldo, G
de Cuveland, J
De Falco, A
De Gruttola, D
Delagrange, H
Deloff, A
De Marco, N
Denes, E
De Pasquale, S
Deppman, A
Erasmo, GD
de Rooij, R
Corchero, MAD
Di Bari, D
Dietel, T
Di Giglio, C
Di Liberto, S
Di Mauro, A
Di Nezza, P
Divia, R
Djuvsland, O
Dobrin, A
Dobrowolski, T
Donigus, B
Dordic, O
Driga, O
Dubey, AK
Dubla, A
Ducroux, L
Dupieux, P
Majumdar, AKD
Elia, D
Emschermann, D
Engel, H
Erazmus, B
Erdal, HA
Espagnon, B
Estienne, M
Esumi, S
Evans, D
Eyyubova, G
Fabris, D
Faivre, J
Falchieri, D
Fantoni, A
Fasel, M
Fearick, R
Fehlker, D
Feldkamp, L
Felea, D
Feliciello, A
Fenton-Olsen, B
Feofilov, G
Tellez, AF
Ferretti, A
Festanti, A
Figiel, J
Figueredo, MAS
Filchagin, S
Finogeev, D
Fionda, FM
Fiore, EM
Floratos, E
Floris, M
Foertsch, S
Foka, R
Fokin, S
Fragiacomo, E
Francescon, A
Frankenfeld, U
Fuchs, U
Furget, C
Girard, MF
Gaardhoje, JJ
Gagliardi, M
Gago, A
Gallio, M
Gangadharan, DR
Ganoti, P
Garabatos, C
Garcia-Solis, E
Gargiulo, C
Garishvili, I
Gerhard, J
Germain, M
Geuna, C
Gheata, A
Gheata, M
Ghidini, B
Ghosh, P
Gianotti, P
Girard, MR
Giubellino, P
Gladysz-Dziadus, E
Glassel, R
Gomez, R
Ferreiro, EG
Gonzalez-Trueba, LH
Gonzalez-Zamora, P
Gorbunov, S
Goswami, A
Gotovac, S
Graczykowski, LK
Grajcarek, R
Grelli, A
Grigoras, C
Grigoras, A
Grigoriev, V
Grigoryan, A
Grigoryan, S
Grinyov, B
Grion, N
Gros, P
Grosse-Oetringhaus, JF
Grossiord, JY
Grosso, R
Guber, E
Guernane, R
Guerzoni, B
Guilbaud, M
Gulbrandsen, K
Gulkanyan, H
Gunji, T
Gupta, A
Gupta, R
Haake, R
Haaland, O
Hadjidakis, C
Haiduc, M
Hamagaki, H
Hamar, G
Han, BH
Hanratty, LD
Hansen, A
Harmanova-Tothova, Z
Harris, JW
Hartig, M
Harton, A
Hatzifotiadou, D
Hayashi, S
Hayrapetyan, A
Heckel, ST
Heide, M
Helstrup, H
Herghelegiu, A
Corral, GH
Herrmann, N
Hess, BA
Hetland, KF
Hicks, B
Hippolyte, B
Hori, Y
Hristov, P
Hrivnacova, I
Huang, M
Humanic, TJ
Hwang, DS
Ichou, R
Ilkaev, R
Ilkiv, I
Inaba, M
Incani, E
Innocenti, PG
Innocenti, GM
Ippolitov, M
Irfan, M
Ivan, C
Ivanov, V
Ivanov, A
Ivanov, M
Ivanytskyi, O
Jacholkowski, A
Jacobs, PM
Jang, HJ
Janik, MA
Janik, R
Jayarathna, PHSY
Jena, S
Jha, DM
Bustamante, RTJ
Jones, PG
Jung, H
Jusko, A
Kaidalov, AB
Kalcher, S
Kalinak, P
Kalliokoski, T
Kalweit, A
Kang, JH
Kaplin, V
Uysal, AK
Karavichev, O
Karavicheva, T
Karpechev, E
Kazantsev, A
Kebschull, U
Keidel, R
Khan, R
Khan, SA
Khan, MM
Khan, KH
Khanzadeev, A
Kharlov, Y
Kileng, B
Kim, T
Kim, S
Kim, M
Kim, B
Kim, M
Kim, JS
Kim, JH
Kim, DJ
Kim, DW
Kirsch, S
Kisel, I
Kiselev, S
Kisiel, A
Klay, JL
Klein, J
Klein-Bosing, C
Kliemant, M
Kluge, A
Knichel, ML
Knospe, AG
Kohler, MK
Kollegger, T
Kolojvari, A
Kompaniets, M
Kondratiev, V
Kondratyeva, N
Konevskikh, A
Kovalenko, V
Kowalski, M
Kox, S
Meethaleveedu, GK
Kral, J
Kralik, I
Kramer, F
Kravcakova, A
Krawutschke, T
Krelina, M
Kretz, M
Krivda, M
Krizek, F
Krus, M
Kryshen, E
Krzewicki, M
Kucheriaev, Y
Kugathasan, T
Kuhn, C
Kuijer, PG
Kulakov, I
Kumar, J
Kurashvili, R
Kurepin, AB
Kurepin, A
Kuryakin, A
Kushpil, V
Kushpil, S
Kvaerno, H
Kweon, MJ
Kwon, Y
de Guevara, PL
Lakomov, I
Langoy, R
La Pointe, SL
Lara, C
Lardeux, A
La Rocca, P
Lea, R
Lechman, M
Lee, KS
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CA ALICE Collaboration
TI Charge correlations using the balance function in Pb-Pb collisions at
root s(NN)=2.76 TeV
SO PHYSICS LETTERS B
LA English
DT Article
DE Balance function; Charge correlations; ALICE LHC
ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; NUCLEAR COLLISIONS;
THERMAL-MODEL; PARTICLE-PRODUCTION; COALESCENCE MODEL; COLLABORATION;
PERSPECTIVE; RESONANCES; PARTON
AB In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric charge balance function in the relative pseudorapidity (Delta eta) and azimuthal angle (Delta phi) in Pb-Pb collisions at root s(NN) = 2.76 TeV with the ALICE detector at the Large Hadron Collider. The width of the balance function decreases with growing centrality (i.e. for more central collisions) in both projections. This centrality dependence is not reproduced by HIJING, while AMPT, a model which incorporates strings and parton rescattering, exhibits qualitative agreement with the measured correlations in Delta phi but fails to describe the correlations in Delta eta. A thermal blast-wave model incorporating local charge conservation and tuned to describe the p(T) spectra and v(2) measurements reported by ALICE, is used to fit the centrality dependence of the width of the balance function and to extract the average separation of balancing charges at freeze-out. The comparison of our results with measurements at lower energies reveals an ordering with root s(NN): the balance functions become narrower with increasing energy for all centralities. This is consistent with the effect of larger radial flow at the LHC energies but also with the late stage creation scenario of balancing charges. However, the relative decrease of the balance function widths in Delta eta and Delta phi, with centrality from the highest SPS to the LHC energy exhibits only small differences. This observation cannot be interpreted solely within the framework where the majority of the charge is produced at a later stage in the evolution of the heavy-ion collision. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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[Bombara, M.; Harmanova-Tothova, Z.; Kravcakova, A.; Putis, M.; Urban, J.; Vrlakova, J.] Safarik Univ, Fac Sci, Kosice, Slovakia.
[Alt, T.; Bach, M.; de Cuveland, J.; Gerhard, J.; Gorbunov, S.; Kalcher, S.; Kirsch, S.; Kisel, I.; Kollegger, T.; Kretz, M.; Lindenstruth, V.; Painke, E.; Rettig, F.; Rohr, D.; Toia, A.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60054 Frankfurt, Germany.
[Ahn, S. U.; Baek, Y. W.; Jung, H.; Kim, M.; Kim, J. S.; Kim, D. W.; Lee, K. S.; Lee, S. C.; Oh, S. K.] Gangneung Wonju Natl Univ, Kangnung, South Korea.
Gauhati Univ, Dept Phys, Gauhati, India.
[Agostinelli, A.; Aysto, J.; Chang, B.; Kalliokoski, T.; Kim, D. J.; Kral, J.; Krizek, F.; Loo, K. K.; Morreale, A.; Novitzky, N.; Raiha, T. S.; Rak, J.; Rasanen, S. S.; Sarkamo, J.; Trzaska, W. H.; Viinikainen, J.] Helsinki Inst Phys, Jyvaskyla, Finland.
[Aysto, J.; Chang, B.; Kalliokoski, T.; Kim, D. J.; Kral, J.; Krizek, F.; Loo, K. K.; Morreale, A.; Novitzky, N.; Raiha, T. S.; Rak, J.; Rasanen, S. S.; Sarkamo, J.; Trzaska, W. H.; Viinikainen, J.] Univ Jyvaskyla, Jyvaskyla, Finland.
[Sakaguchi, H.; Shigaki, K.; Sugitate, T.] Hiroshima Univ, Hiroshima, Japan.
[Behera, N. K.; Jena, S.; Meethaleveedu, G. Koyithatta; Kumar, J.; Nandi, B. K.; Nyatha, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Mishra, A. N.; Sahoo, R.] Indian Inst Technol Indore, Indore, Madhya Pradesh, India.
[Das, I.; Espagnon, B.; Hadjidakis, C.; Hrivnacova, I.; Lakomov, I.; Suire, C.; Takaki, J. D. Tapia; Palomo, L. Valencia] Univ Paris 11, CNRS, IN2P3, IPNO, F-91405 Orsay, France.
[Bogolyubsky, M.; Kharlov, Y.; Patalakha, D. I.; Polichtchouk, B.; Sadovsky, S.; Stolpovskiy, M.] Inst High Energy Phys, Protvino, Russia.
[Finogeev, D.; Guber, E.; Karavichev, O.; Karavicheva, T.; Karpechev, E.; Konevskikh, A.; Kurepin, A. B.; Kurepin, A.; Maevskaya, A.; Pshenichnov, I.; Reshetin, A.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia.
[Bjelogrlic, S.; de Rooij, R.; Dubla, A.; Grelli, A.; La Pointe, S. L.; Lodato, D. F.; Luparello, G.; Mischke, A.; Nooren, G.; Peitzmann, T.; Reicher, M.; Snellings, R. J. M.; Thomas, D.; van Leeuwen, M.; Veldhoen, M.; Verweij, M.; Yang, H.; Zhou, Y.] NIKHEF H, Natl Inst Subat Phys, Utrecht, Netherlands.
[Bjelogrlic, S.; de Rooij, R.; Dubla, A.; Grelli, A.; La Pointe, S. L.; Lodato, D. F.; Luparello, G.; Mischke, A.; Nooren, G.; Peitzmann, T.; Reicher, M.; Snellings, R. J. M.; Thomas, D.; van Leeuwen, M.; Veldhoen, M.; Verweij, M.; Yang, H.; Zhou, Y.] Univ Utrecht, Inst Subat Phys, Utrecht, Netherlands.
[Akindinov, A.; Kaidalov, A. B.; Kiselev, S.; Mal'Kevich, D.; Nedosekin, A.; Sultanov, R.; Voloshin, K.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Ban, J.; Kalinak, P.; Kralik, I.; Krivda, M.; Musinsky, J.; Sandor, L.; Vala, M.] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia.
[Baral, R. C.; Mahapatra, D. P.] Inst Phys, Bhubaneswar 751007, Orissa, India.
[Mares, J.; Polak, K.; Zavada, P.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Danu, A.; Felea, D.; Gheata, M.; Haiduc, M.; Mitu, C.; Niculescu, M.; Sevcenco, A.; Stan, I.; Zgura, I. S.] Inst Space Sci, Bucharest, Romania.
[Breitner, T.; Engel, H.; Kebschull, U.; Lara, C.; Ulrich, J.; Zelnicek, P.] Goethe Univ Frankfurt, Inst Informat, D-60054 Frankfurt, Germany.
[Appelshaeuser, H.; Arend, A.; Arslandok, M.; Bailhache, R.; Baumann, C.; Beck, H.; Blume, C.; Book, J.; Broker, T. A.; Buesching, H.; Hartig, M.; Heckel, S. T.; Kliemant, M.; Kramer, F.; Kulakov, I.; Lehnert, J.; Vargas, H. Leon; Luettig, P.; Marquard, M.; Pitz, N.; Rascanu, B. T.; Reichelt, R.; Renfordt, R.; Schuchmann, S.; Peloni, A. Tarantola; Ulery, J.; Yu, W.; Zyzak, M.] Goethe Univ Frankfurt, Inst Kernphys, Frankfurt, Germany.
[Kalweit, A.; Mager, M.; Oeschler, H.] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany.
[Anielski, J.; Bathen, B.; Dietel, T.; Emschermann, D.; Feldkamp, L.; Haake, R.; Heide, M.; Klein-Boesing, C.; Passfeld, A.; Sicking, E.; Wessels, J. P.; Westerhoff, U.; Wilde, M.; Wilk, A.] Univ Munster, Inst Kernphys, D-48149 Munster, Germany.
[Cuautle, E.; Jimenez Bustamante, R. T.; Ladron de Guevara, P.; Maldonado Cervantes, I.; Velasquez, A. Ortiz; Paic, G.; Peskov, V.; Simatovic, G.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico.
[Almaraz Avina, E.; Belmont-Moreno, E.; Cruz Alaniz, E.; Gonzalez-Trueba, L. H.; Leon, H.; Martinez Davalos, A.; Menchaca-Rocha, A.; Sandoval, A.; Serradilla, E.] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico.
[Belikov, I.; Hippolyte, B.; Kuhn, C.; Molnar, L.; Roy, C.; Castro, X. Sanchez; Senyukov, S.] Univ Strasbourg, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France.
[Batyunya, B.; Grigoryan, S.; Malinina, L.; Nomokonov, P.; Pocheptsov, T.; Shabratova, G.; Vala, M.; Vodopyanov, A.; Zaporozhets, S.] Joint Inst Nucl Res, Dubna, Russia.
[Ulrich, J.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Ahn, S. U.; Ahn, S. A.; Jang, H. J.; Kim, D. W.] Korea Inst Sci & Technol Informat, Taejon, South Korea.
[Uysal, A. Karasu] KTO Karatay Univ, Konya, Turkey.
[Baek, Y. W.; Barret, V.; Bastid, N.; Crochet, P.; Dupieux, P.; Ichou, R.; Lopez, X.; Manso, F.; Marchisone, M.; Porteboeuf-Houssais, S.; Rosnet, R.; Vulpescu, B.; Zhang, X.] Univ Clermont Ferrand, Phys Corpusculaire Lab, Univ Blaise Pascal, CNRS IN2P3, Clermont Ferrand, France.
[Arbor, N.; Balbastre, G. Conesa; Faivre, J.; Furget, C.; Guernane, R.; Kox, S.; Real, J. S.; Silvestre, C.] Univ Grenoble 1, CNRS, Inst Polytech Grenoble, LPSC, Grenoble, France.
[Bianchi, L.; Diaz, A. Casanova; Cunqueiro, L.; Di Nezza, P.; Fantoni, A.; Gianotti, P.; Muccifora, V.; Reolon, A. R.; Ronchetti, F.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Ricci, R. A.; Vannucci, L.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Braidot, E.; Cosentino, M. R.; Fenton-Olsen, B.; Jacobs, P. M.; Loizides, C.; Ploskon, M.; Sakai, S.; Symons, T. J. M.; Zhang, X.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Abelev, B.; Garishvili, I.; Soltz, R.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Bogdanov, A.; Grigoriev, V.; Kaplin, V.; Kondratyeva, N.; Loginov, V.; Ter Minasyan, A.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Deloff, A.; Dobrowolski, T.; Ilkiv, I.; Kurashvili, R.; Redlich, K.; Siemiarczuk, T.; Stefanek, G.; Wilk, G.] Natl Ctr Nucl Studies, Warsaw, Poland.
[Andrei, C.; Berceanu, I.; Bercuci, A.; Catanescu, V.; Herghelegiu, A.; Petris, M.; Petrovici, M.; Pop, A.; Schiaua, C.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Mohanty, B.; Singha, S.] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India.
[Bearden, I. G.; Bilandzic, A.; Boggild, H.; Chojnacki, M.; Christensen, C. H.; Dalsgaard, H. H.; Gaardhoje, J. J.; Gulbrandsen, K.; Hansen, A.; Nygaard, C.; Sogaard, C.; Zaccolo, V.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Botje, M.; Christakoglou, P.; Kuijer, P. G.; Lara, C. E. Perez; Manso, A. Rodriguez] NIKHEF H, Natl Inst Subat Phys, NL-1009 DB Amsterdam, Netherlands.
[Adamova, D.; Bielcikova, J.; Kushpil, V.; Kushpil, S.; Sumbera, M.; Vajzer, M.] Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic.
[Awes, T. C.; Ganoti, P.; Silvermyr, D.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Berdnikov, Y.; Ivanov, V.; Khanzadeev, A.; Kryshen, E.; Malaev, M.; Nikulin, V.; Samsonov, V.; Zhalov, M.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Cherney, M.; Nilsen, B. S.] Creighton Univ, Dept Phys, Omaha, NE 68178 USA.
[Aggarwal, M. M.; Bhati, A. K.; Chawla, I.; Rathee, D.; Sharma, N.] Panjab Univ, Dept Phys, Chandigarh 160014, India.
[Floratos, E.; Spyropoulou-Stassinaki, M.; Vasileiou, M.] Univ Athens, Dept Phys, Athens, Greece.
[Azmi, M. D.; Bossu, F.; Buthelezi, Z.; Cleymans, J.; Fearick, R.; Foertsch, S.; Murray, S.; Steyn, G.; Vilakazi, Z.] Univ Cape Town, Dept Phys, Somerset West, South Africa.
[Azmi, M. D.; Bossu, F.; Buthelezi, Z.; Cleymans, J.; Fearick, R.; Foertsch, S.; Murray, S.; Steyn, G.; Vilakazi, Z.] Natl Res Fdn, iThemba LABS, Somerset West, South Africa.
[Bala, R.; Bhasin, A.; Gupta, A.; Gupta, R.; Mangotra, L.; Potukuchi, B.; Sambyal, S.; Sharma, S.; Rohni, S.; Singh, R.] Univ Jammu, Dept Phys, Jammu 180004, India.
[Goswami, A.; Mishra, A. N.; Raniwala, R.; Raniwala, S.] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India.
[Anguelov, V.; Busch, O.; Fasel, M.; Glassel, R.; Grajcarek, R.; Herrmann, N.; Klein, J.; Krawutschke, T.; Kweon, M. J.; Lohner, D.; Lu, X. -G.; Maire, A.; Perez, J. Mercado; Oyama, K.; Pachmayer, Y.; Reidt, F.; Reygers, K.; Schicker, R.; Stachel, J.; Stiller, J. H.; Vallero, S.; Wang, Y.; Windelband, B.; Winn, M.; Zimmermann, A.] Heidelberg Univ, Inst Phys, Heidelberg, Germany.
[Agnello, M.] Politecn Torino, Turin, Italy.
[Browning, T. A.; Scharenberg, R. P.; Srivastava, B. K.] Purdue Univ, W Lafayette, IN 47907 USA.
[Chung, S. U.; Seo, J.; Song, J.; Yi, J.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Andronic, A.; Arsene, I. C.; Averbeck, R.; Braun-Munzinger, P.; Hernandez, J. F. Castillo; Doenigus, B.; Fasel, M.; Foka, R.; Frankenfeld, U.; Garabatos, C.; Ivan, C.; Ivanov, M.; Knichel, M. L.; Kohler, M. K.; Krzewicki, M.; Lenhardt, M.; Lippmann, C.; Malzacher, R.; Marin, A.; Martin, N. A.; Masciocchi, S.; Miskowiec, D.; Nicassio, M.; Otwinowski, J.; Park, W. J.; Romita, R.; Schmidt, C.; Schwarz, K.; Schweda, K.; Selyuzhenkov, I.; Thaeder, J.; Vranic, D.] GSI Helmholtzzentrum Schwerionenforsch, Div Res, Darmstadt, Germany.
[Andronic, A.; Arsene, I. C.; Averbeck, R.; Braun-Munzinger, P.; Hernandez, J. F. Castillo; Doenigus, B.; Fasel, M.; Foka, R.; Frankenfeld, U.; Garabatos, C.; Ivan, C.; Ivanov, M.; Knichel, M. L.; Kohler, M. K.; Krzewicki, M.; Lenhardt, M.; Lippmann, C.; Malzacher, R.; Marin, A.; Martin, N. A.; Masciocchi, S.; Miskowiec, D.; Nicassio, M.; Otwinowski, J.; Park, W. J.; Romita, R.; Schmidt, C.; Schwarz, K.; Schweda, K.; Selyuzhenkov, I.; Thaeder, J.; Vranic, D.] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany.
[Anticic, T.; Nikolic, V.; Planinic, M.; Simatovic, G.; Susa, T.] Rudjer Boskovic Inst, Zagreb, Croatia.
[Budnikov, D.; Filchagin, S.; Ilkaev, R.; Kuryakin, A.; Mamonov, A.; Nazarenko, S.; Punin, V.; Tumkin, A.; Vinogradov, Y.; Vyushin, A.; Zaviyalov, N.] Russian Fed Nucl Ctr VNIIEF, Sarov, Russia.
[Aleksandrov, D.; Blau, D.; Fokin, S.; Ippolitov, M.; Kazantsev, A.; Kucheriaev, Y.; Manko, V.; Nikoidev, S.; Nikulin, S.; Nyanin, A.; Peresunko, D.; Ryabinkin, E.; Sibiriak, Y.; Ter Minasyan, A.; Vasiliev, A.; Vinogradov, A.; Yasnopolskiy, S.; Yushmanov, I.] Russian Res Ctr, Kurchatov Inst, Moscow, Russia.
[Chattopadhyay, S.; Das, D.; Das, K.; Majumdar, A. K. Dutta; Khan, R.; Paul, B.; Roy, P.; Sinha, T.] Saha Inst Nucl Phys, Kolkata, India.
[Barnby, L. S.; Evans, D.; Hanratty, L. D.; Jones, P. G.; Jusko, A.; Krivda, M.; Lee, G. R.; Lietava, R.; Palaha, A.; Petrov, R.; Scott, P. A.; Baillie, O. Villalobos] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England.
[Calvo Villar, E.; Gago, A.] Pontificia Univ Catolica Peru, Dept Ciencias, Secc Fis, Lima, Peru.
[Romita, R.] STFC Daresbury Lab, Nucl Phys Grp, Daresbury, Cheshire, England.
[Aphecetche, L.; Batigne, G.; Bergognon, A. A. E.; Bregant, M.; Delagrange, H.; Driga, O.; Erazmus, B.; Estienne, M.; Germain, M.; Lardeux, A.; Martinez Garcia, G.; Mas, A.; Massacrier, L.; Pillot, R.; Schutz, Y.; Shabetai, A.; Stocco, D.] Univ Nantes, SUBATECH, Ecole Mines Nantes, CNRS IN2P3, Nantes, France.
Suranaree Univ Technol, Nakhon Ratchasima, Thailand.
[Gotovac, S.; Mudnic, E.; Vickovic, L.] Tech Univ Split FESB, Split, Croatia.
[Bartke, J.; Figiel, J.; Gladysz-Dziadus, E.; Kowalski, M.; Matyja, A.; Mayer, C.; Rybicki, A.; Sputowska, I.; Szczepankiewicz, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Knospe, A. G.; Markert, C.; Karampatsos, L. Xaplanteris] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Gomez, R.; Monzon, I. Leon; Podesta-Lerma, P. L. M.] Univ Autonoma Sinaloa, Culiacan, Mexico.
[Carlin Filho, N.; de Barros, G. O. V.; Deppman, A.; Figueredo, M. A. S.; De Godoy, D. A. Moreira; Munhoz, M. G.; Da Silva, A. C. Oliveira; Pereira De Oliveira Filho, E.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Dash, A.; Takahashi, J.] Univ Estadual Campinas, UNICAMP, Campinas, SP, Brazil.
[Cheshkov, C.; Cheynis, B.; Ducroux, L.; Grossiord, J. -Y; Guilbaud, M.; Tieulent, R.; Uras, A.; Zoccarato, Y.] Univ Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France.
[Bellwied, R.; Blanco, F.; Chinellato, D. D.; Jayarathna, P. H. S. Y.; Madagodahettige-Don, D. M.; Pinsky, L.; Piyarathna, D. B.; Timmins, A. R.; Weber, M.] Univ Houston, Houston, TX 77004 USA.
Univ Technol, Vienna, Austria.
Austrian Acad Sci, A-1010 Vienna, Austria.
[Martashvili, I.; Mazer, J.; Nattrass, C.; Read, K. F.; Scott, R.; Sharma, N.] Univ Tennessee, Knoxville, TN USA.
[Gunji, T.; Hamagaki, H.; Hayashi, S.; Hori, Y.; Ozawa, K.; Torii, H.; Tsuji, T.; Yamaguchi, Y.] Univ Tokyo, Tokyo, Japan.
[Bhom, J.; Chujo, T.; Esumi, S.; Inaba, M.; Miake, Y.; Mizuno, S.; Niida, T.; Sakata, D.; Sano, M.] Univ Tsukuba, Tsukuba, Ibaraki, Japan.
[Hess, B. A.; Schmidt, H. R.; Wiechula, J.] Univ Tubingen, Tubingen, Germany.
[Ahammed, Z.; Basu, S.; Chattopadhyay, S.; Choudhury, S.; De, S.; Dubey, A. K.; Ghosh, P.; Khan, S. A.; Mohanty, B.; Muhuri, S.; Mukherjee, M.; Nayak, T. K.; Pal, S. K.; Saini, J.; Singaraju, R.; Singha, S.; Singhal, V.; Sinha, B. C.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata, India.
[Altsybeev, I.; Asryan, A.; Feofilov, G.; Ivanov, A.; Kolojvari, A.; Kompaniets, M.; Kondratyeva, N.; Kovalenko, V.; Ochirov, A.; Vechernin, V.; Vinogradov, L.; Vorobyev, I.; Zarochentsev, A.] St Petersburg State Univ, V Fock Inst Phys, St Petersburg 199034, Russia.
[Girard, M. R.; Graczykowski, L. K.; Janik, M. A.; Kisiel, A.; Oleniacz, J.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Szymanski, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Borissov, A.; Cormier, T. M.; Dobrin, A.; Jha, D. M.; Loggins, V. R.; Mlynarz, J.; Pavlinov, A.; Prasad, S. K.; Pruneau, C. A.; Putschke, J.; Voloshin, S.; Yaldo, C. G.] Wayne State Univ, Detroit, MI USA.
[Agocs, A. G.; Barnafoeldi, G. G.; Bencedi, G.; Berenyi, D.; Boldizsar, L.; Denes, E.; Levai, R.; Molnar, L.; Pochybova, S.] Hungarian Acad Sci, Wigner Res Ctr Phys, Budapest, Hungary.
[Adare, A. M.; Aronsson, T.; Caines, H.; Connors, M. E.; Harris, J. W.; Hicks, B.; Ma, R.; Oh, S.; Reed, R. J.; Schuster, T.; Smirnov, N.] Yale Univ, New Haven, CT USA.
[Uysal, A. Karasu] Yildiz Tekn Univ, Istanbul, Turkey.
[Chang, B.; Kang, J. H.; Kim, T.; Kim, M.; Kim, B.; Kwon, Y.; Moon, T.; Song, M.; Yoon, J.] Yonsei Univ, Seoul 120749, South Korea.
[Keidel, R.] Fachhsch Worms, Zentrum Technol Transfer & Telekommunikat ZTT, Worms, Germany.
RP Weber, M (reprint author), Univ Houston, Houston, TX 77004 USA.
EM m.weber@cern.ch
RI Jena, Deepika/P-2873-2015; Jena, Satyajit/P-2409-2015; Akindinov,
Alexander/J-2674-2016; Nattrass, Christine/J-6752-2016; Suaide,
Alexandre/L-6239-2016; Deppman, Airton/J-5787-2014; Inst. of Physics,
Gleb Wataghin/A-9780-2017; Ferreiro, Elena/C-3797-2017; Armesto,
Nestor/C-4341-2017; Ferretti, Alessandro/F-4856-2013; Martinez
Hernandez, Mario Ivan/F-4083-2010; HAMAGAKI, HIDEKI/G-4899-2014;
Pshenichnov, Igor/A-4063-2008; Altsybeev, Igor/K-6687-2013; Vinogradov,
Leonid/K-3047-2013; Janik, Malgorzata/O-7520-2015; Graczykowski,
Lukasz/O-7522-2015; Christensen, Christian/D-6461-2012; De Pasquale,
Salvatore/B-9165-2008; de Cuveland, Jan/H-6454-2016; Kompaniets,
Mikhail/F-5025-2013; Kurepin, Alexey/H-4852-2013; Blau,
Dmitry/H-4523-2012; Yang, Hongyan/J-9826-2014; Cosentino,
Mauro/L-2418-2014; Bearden, Ian/M-4504-2014; Sumbera,
Michal/O-7497-2014; Peitzmann, Thomas/K-2206-2012; Kharlov,
Yuri/D-2700-2015; Mitu, Ciprian/E-6733-2011; Usai, Gianluca/E-9604-2015;
Salgado, Carlos A./G-2168-2015; Bruna, Elena/C-4939-2014; Karasu Uysal,
Ayben/K-3981-2015; Chinellato, David/D-3092-2012; feofilov,
grigory/A-2549-2013; Castillo Castellanos, Javier/G-8915-2013;
Pochybova, Sona/A-2835-2014; Takahashi, Jun/B-2946-2012; Martinez
Davalos, Arnulfo/F-3498-2013; Wagner, Vladimir/G-5650-2014; Vajzer,
Michal/G-8469-2014; Krizek, Filip/G-8967-2014; Bielcikova,
Jana/G-9342-2014; Adamova, Dagmar/G-9789-2014; Barnby, Lee/G-2135-2010;
Christensen, Christian Holm/A-4901-2010; Voloshin, Sergei/I-4122-2013;
Kovalenko, Vladimir/C-5709-2013; Vechernin, Vladimir/J-5832-2013;
Zarochentsev, Andrey/J-6253-2013; Sevcenco, Adrian/C-1832-2012;
Kondratiev, Valery/J-8574-2013; Vorobyev, Ivan/K-2304-2013; Bregant,
Marco/I-7663-2012; Barnafoldi, Gergely Gabor/L-3486-2013; Felea,
Daniel/C-1885-2012; Vickovic, Linda/F-3517-2017; Fernandez Tellez,
Arturo/E-9700-2017;
OI Jena, Deepika/0000-0003-2112-0311; Jena, Satyajit/0000-0002-6220-6982;
Akindinov, Alexander/0000-0002-7388-3022; Nattrass,
Christine/0000-0002-8768-6468; Suaide, Alexandre/0000-0003-2847-6556;
Deppman, Airton/0000-0001-9179-6363; Ferreiro,
Elena/0000-0002-4449-2356; Armesto, Nestor/0000-0003-0940-0783;
Ferretti, Alessandro/0000-0001-9084-5784; Martinez Hernandez, Mario
Ivan/0000-0002-8503-3009; Pshenichnov, Igor/0000-0003-1752-4524;
Altsybeev, Igor/0000-0002-8079-7026; Vinogradov,
Leonid/0000-0001-9247-6230; Janik, Malgorzata/0000-0002-3356-3438;
Christensen, Christian/0000-0002-1850-0121; De Pasquale,
Salvatore/0000-0001-9236-0748; de Cuveland, Jan/0000-0003-0455-1398;
Kompaniets, Mikhail/0000-0001-8831-0553; Kurepin,
Alexey/0000-0002-1851-4136; Cosentino, Mauro/0000-0002-7880-8611;
Bearden, Ian/0000-0003-2784-3094; Sumbera, Michal/0000-0002-0639-7323;
Peitzmann, Thomas/0000-0002-7116-899X; Usai,
Gianluca/0000-0002-8659-8378; Salgado, Carlos A./0000-0003-4586-2758;
Bruna, Elena/0000-0001-5427-1461; Karasu Uysal,
Ayben/0000-0001-6297-2532; Chinellato, David/0000-0002-9982-9577;
feofilov, grigory/0000-0003-3700-8623; Castillo Castellanos,
Javier/0000-0002-5187-2779; Takahashi, Jun/0000-0002-4091-1779; Martinez
Davalos, Arnulfo/0000-0002-9481-9548; Barnby, Lee/0000-0001-7357-9904;
Christensen, Christian Holm/0000-0002-1850-0121; Kovalenko,
Vladimir/0000-0001-6012-6615; Vechernin, Vladimir/0000-0003-1458-8055;
Zarochentsev, Andrey/0000-0002-3502-8084; Sevcenco,
Adrian/0000-0002-4151-1056; Kondratiev, Valery/0000-0002-0031-0741;
Vorobyev, Ivan/0000-0002-2218-6905; Felea, Daniel/0000-0002-3734-9439;
Vickovic, Linda/0000-0002-9820-7960; Fernandez Tellez,
Arturo/0000-0003-0152-4220; Riggi, Francesco/0000-0002-0030-8377;
Scarlassara, Fernando/0000-0002-4663-8216
FU State Committee of Science; Calouste Gulbenkian Foundation from Lisbon;
Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq); Financiadora de Estudos e Projetos
(FINEP); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP);
National Natural Science Foundation of China (NSFC); Chinese Ministry of
Education (CMOE); Ministry of Science and Technology of China (MSTC);
Ministry of Education and Youth of the Czech Republic; Danish Natural
Science Research Council; Carlsberg Foundation; Danish National Research
Foundation; European Research Council under the European Community;
Helsinki Institute of Physics; Academy of Finland; French CNRS-IN2P3;
Region Pays de Loire; Region Alsace; Region Auvergne; CEA, France;
German BMBF; Helmholtz Association; General, Secretariat for Research
and Technology, Ministry of Development, Greece; Hungarian OTKA;
National Office for Research and Technology (NKTH); Department of Atomic
Energy and Department of Science and Technology of the Government of
India; Istituto Nazionale di Fisica Nucleare (INFN); Centro Fermi -
Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi",
Italy; MEXT, Japan; Joint Institute for Nuclear Research, Dubna;
National Research Foundation of Korea (NRF); CONACYT; DGAPA, Mexico;
ALFA-EC; HELEN Program (High-Energy Physics Latin-American-European
Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM);
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO),
Netherlands; Research. Council of Norway (NFR); Polish Ministry of
Science and Higher Education; National Authority for Scientific Research
- NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS);
Ministry of Education; Science of Russian Federation, International
Science and Technology Center; Russian Academy of Sciences; Russian
Federal Agency of Atomic Energy; Russian Federal Agency for Science and
Innovations; CERN-INTAS; Ministry of Education of Slovakia; Department
of Science and Technology, South Africa; CIEMAT; EELA; Ministerio de
Educacion y Ciencia of Spain; Xunta de Galicia (Conselleria de
Educacion); CEADEN; Cubaenergia; Cuba; IAEA (International Atomic Energy
Agency); Swedish Research Council (VR); Knut & Alice Wallenberg
Foundation (KAW); Ukraine Ministry of Education and Science; United
Kingdom Science and Technology Facilities Council (STFC); United States
Department of Energy; United States National Science Foundation; State
of Texas; State of Ohio
FX The ALICE Collaboration acknowledges the following funding agencies for
their support in building and running the ALICE detector: State
Committee of Science, Calouste Gulbenkian Foundation from Lisbon and
Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos
(FINEP), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP);
National Natural Science Foundation of China (NSFC), the Chinese
Ministry of Education (CMOE) and the Ministry of Science and Technology
of China (MSTC); Ministry of Education and Youth of the Czech Republic;
Danish Natural Science Research Council, the Carlsberg Foundation and
the Danish National Research Foundation; The European Research Council
under the European Community's Seventh Framework Programme; Helsinki
Institute of Physics and the Academy of Finland; French CNRS-IN2P3, the
'Region Pays de Loire', 'Region Alsace', 'Region Auvergne' and CEA,
France; German BMBF and the Helmholtz Association; General, Secretariat
for Research and Technology, Ministry of Development, Greece; Hungarian
OTKA and National Office for Research and Technology (NKTH); Department
of Atomic Energy and Department of Science and Technology of the
Government of India; Istituto Nazionale di Fisica Nucleare (INFN) and
Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche
"Enrico Fermi", Italy; MEXT Grant-in-Aid for Specially Promoted
Research, Japan; Joint Institute for Nuclear Research, Dubna; National
Research Foundation of Korea (NRF); CONACYT, 'DGAPA, Mexico, ALFA-EC and
the HELEN Program (High-Energy Physics Latin-American-European Network);
Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO),
Netherlands; Research. Council of Norway (NFR); Polish Ministry of
Science and Higher Education; National Authority for Scientific Research
- NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS);
Ministry of Education, and Science of Russian Federation, International
Science and Technology Center, Russian Academy of Sciences, Russian
Federal Agency of Atomic Energy, Russian Federal Agency for Science and
Innovations and CERN-INTAS; Ministry of Education of Slovakia;
Department of Science and Technology, South Africa; CIEMAT, EELA,
Ministerio de Educacion y Ciencia of Spain, Xunta de Galicia
(Conselleria de Educacion), CEADEN, Cubaenergia, Cuba, and IAEA
(International Atomic Energy Agency); Swedish Research Council (VR) and
Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education
and Science; United Kingdom Science and Technology Facilities Council
(STFC); The United States Department of Energy, the United States
National Science Foundation, the State of Texas, and the State of Ohio.
NR 51
TC 14
Z9 15
U1 0
U2 81
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 25
PY 2013
VL 723
IS 4-5
BP 267
EP 279
DI 10.1016/j.physletb.2013.05.039
PG 13
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 168ZB
UT WOS:000320745400003
ER
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Khachatryan, V
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CA CMS Collaboration
TI Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp
collisions at 7 TeV
SO PHYSICS LETTERS B
LA English
DT Article
DE CMS; Physics; Dijet; Jet substructure; Resonances
ID ROOT-S=7 TEV; Z BOSONS; PHENOMENOLOGY; PHYSICS; LEPTON
AB A search has been made for massive resonances decaying into a quark and a vector boson, qW or qZ, or a pair of vector bosons, WW, WZ, or ZZ, where each vector boson decays to hadronic final states. This search is based on a data sample corresponding to an integrated luminosity of 5.0 fb(-1) of proton-proton collisions collected in the CMS experiment at the LHC in 2011 at a center-of-mass energy of 7 TeV. For sufficiently heavy resonances the decay products of each vector boson are merged into a single jet, and the event effectively has a dijet topology. The background from QCD dijet events is reduced using recently developed techniques that resolve jet substructure. A 95% CL lower limit is set on the mass of excited quark resonances decaying into qW (qZ) at 2.38 TeV (2.15 TeV) and upper limits are set on the cross section for resonances decaying to qW, qZ, WW, WZ, or ZZ final states. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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[Bencze, G.; Hajdu, C.; Hidas, P.; Horvath, D.; Sikler, F.; Veszpremi, V.; Vesztergombi, G.; Krajczar, K.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
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[Fabbricatore, P.; Musenich, R.; Tosi, S.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Tosi, S.] Univ Genoa, Genoa, Italy.
[Benaglia, A.; De Guio, F.; Di Matteo, L.; Fiorendi, S.; Gennai, S.; Ghezzi, A.; Malvezzi, S.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy.
[Benaglia, A.; De Guio, F.; Di Matteo, L.; Fiorendi, S.; Ghezzi, A.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy.
[Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Dogangun, O.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy.
[De Cosa, A.; Dogangun, O.; Iorio, A. O. M.] Univ Naples Federico II, Naples, Italy.
[Azzi, P.; Bacchetta, N.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, R.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gozzelino, A.; Kanishchev, K.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, R.; Zucchetta, A.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy.
[Bisello, D.; Branca, A.; Carlin, R.; Gasparini, F.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Vanini, S.; Zotto, R.; Zucchetta, A.; Zumerle, G.] Univ Padua, Padua, Italy.
[Kanishchev, K.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy.
[Gabusi, M.; Ratti, S. R.; Riccardi, C.; Torre, P.; Vitulo, P.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Gabusi, M.; Ratti, S. R.; Riccardi, C.; Torre, P.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy.
[Biasini, M.; Bilei, G. M.; Fano, L.; Lariccia, P.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Saha, A.; Santocchia, A.; Spiezia, A.; Taroni, S.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Nicolaou, C.; Biasini, M.; Fano, L.; Lariccia, P.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Spiezia, A.; Taroni, S.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy.
[Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Rizzi, A.; Serban, A. T.; Spagnolo, P.; Squillacioti, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.; Rolandi, G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Fiori, F.; Messineo, A.; Rizzi, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Rolandi, G.] Scuola Normale Super Pisa, Pisa, Italy.
[Barone, L.; Cavallari, F.; Del Re, D.; Diemoz, M.; Fanelli, C.; Grassi, M.; Longo, E.; Meridiani, P.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Paramatti, R.; Rahatlou, S.; Sigamani, M.; Soffi, L.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Barone, L.; Del Re, D.; Fanelli, C.; Grassi, M.; Longo, E.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Rahatlou, S.; Soffi, L.; Rovelli, C.] Univ Rome, Rome, Italy.
[Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Cartiglia, N.; Costa, M.; Demaria, N.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.; Pereira, A. Vilela; Rovelli, C.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Amapane, N.; Argiro, S.; Costa, M.; Migliore, E.; Monaco, V.; Potenza, A.; Romero, A.; Sacchi, R.; Solano, A.] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientate Novara, Turin, Italy.
[Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Marone, M.; Montanino, D.; Penzo, A.; Schizzi, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.
[Candelise, V.; Della Ricca, G.; Marone, M.; Montanino, D.; Schizzi, A.] Univ Trieste, Trieste, Italy.
[Heo, S. G.; Kim, T. Y.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Kim, D. H.; Kim, G. N.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D. C.; Son, T.; Kamon, T.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, J. Y.; Kim, Zero J.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Choi, S.; Gyun, D.; Hong, B.; Jo, M.; Kim, H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.] Korea Univ, Seoul, South Korea.
[Choi, M.; Kim, J. H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Cho, Y.; Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Juodagalvis, A.] Vilnius Univ, Vilnius, Lithuania.
[Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest Estudios Avanzados, Mexico City 07738, DF, Mexico.
[Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico.
[Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand.
[Bell, A. J.; Butler, P. H.; Doesburg, R.; Reucroft, S.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand.
[Ahmad, M.; Ansari, M. H.; Asghar, M. I.; Butt, J.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.
[Bluj, M.; Bialkowska, H.; Boimska, B.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Natl Ctr Nucl Res, Otwock, Poland.
[Brona, G.; Bunkowski, K.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland.
[Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Seixas, J.; Varela, J.; Vischia, P.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.
[Tsamalaidze, Z.; Bunin, P.; Gavrilenko, M.; Golutvin, I.; Karjavin, V.; Konoplyanikov, V.; Kozlov, G.; Lanev, A.; Malakhov, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Shulha, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia.
[Evstyukhin, S.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Tlisov, D.; Toropin, A.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia.
[Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kossov, M.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Zhukov, V.; Katkov, I.; Belyaev, A.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Klyukhin, V.; Kodolova, A.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Popov, A.; L., Sarycheva T.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia.
[Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia.
[Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Brun, H.; Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Piedra Gomez, J.] Univ Oviedo, Oviedo, Spain.
[Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Graziano, A.; Jorda, C.; Lopez Virto, A.; Marco, J.; Marco, R.; Scodellaro, L.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain.
[Puljak, I.; Chierici, R.; Sharma, A.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Bachtis, M.; Baillon, P.; Ball, A. H.; Barney, D.; Benitez, J. F.; Bernet, C.; Bianchi, G.; Bloch, P.; Bocci, A.; Bonato, A.; Botta, C.; Breuker, H.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; D'Enterria, D.; Dabrowski, A.; De Roeck, A.; Di Guida, S.; Dobson, M.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Georgiou, G.; Giffels, M.; Gigi, D.; Gill, K.; Giordano, D.; Girone, M.; Giunta, M.; Glege, E.; Garrido, R. Gomez-Reino; Govoni, P.; Gowdy, S.; Guida, R.; Hansen, M.; Harris, P.; Hartl, C.; Harvey, J.; Hegner, B.; Hinzmann, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Kousouris, K.; Lecoq, P.; Lee, Y. -J.; Lenzi, P.; Lourenco, C.; Magini, N.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Musella, P.; Nesvold, E.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Perrozzi, L.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rovelli, C.; Rovere, M.; Sakulin, H.; Santanastasio, F.; Schaefer, C.; Schwick, C.; Segoni, I.; Sekmen, S.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Tsirou, A.; Veres, G. I.; Vlimant, J. R.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Baeni, L.; Bortignon, P.; Buchmann, M. A.; Casal, B.; Chanon, N.; Deisher, A.; Dissertori, G.; Dittmar, M.; Donega, M.; Duenser, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hits, D.; Lecomte, P.; Lustermann, W.; Marini, A. C.; del Arbol, P. Martinez Ruiz; Mohr, N.; Moortgat, F.; Naegeli, C.; Nef, R.; Nessi-Tedaldi, F.; Pandolfi, F.; Pape, L.; Pauss, F.; Peruzzi, M.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, H. A.; Wehrli, L.] ETH, Inst Particle Phys, Zurich, Switzerland.
[Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Snoek, H.; Tupputi, S.; Verzetti, M.] Univ Zurich, Zurich, Switzerland.
[Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Singh, A. P.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan.
[Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Dietz, C.; Grundler, U.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Majumder, D.; Petrakou, E.; Shi, X.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan.
[Asavapibhop, B.; Srimanobhas, N.] Chulalongkorn Univ, Bangkok, Thailand.
[Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Karapinar, G.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey.
[Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey.
[Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey.
[Levchuk, L.] Natl Sci Ctr, Kharkov Inst Phys & Technol, Kharkov, Ukraine.
[Brooke, J. J.; Clement, E.; Cussans, D.; Flacher, H.; Frazier, R.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Williams, T.] Univ Bristol, Bristol, Avon, England.
[Belyaev, A.; Worm, S. D.; Newbold, D. M.; Basso, L.; Bell, K. W.; Brew, C.; Brown, R. M.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Nicolaou, C.; Bainbridge, R.; Ball, G.; Beuselinck, R.; Buchmuller, .; Colling, D.; Cripps, N.; Cutajar, M.; Dauncey, P.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pela, J.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leggat, D.; Leslie, D.; Martin, W.; Reid, I. D.; Symonds, P.; Teodorescu, L.; Turner, M.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.; Liu, H.; Scarborough, T.] Baylor Univ, Waco, TX 76798 USA.
[Charaf, O.; Henderson, C.; Rumerio, P.] Univ Alabama, Tuscaloosa, AL USA.
[Avetisyan, A.; Bose, T.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Bhattacharya, S.; Alimena, J.; Cutts, D.; Demiragli, Z.; Ferapontov, A.; Garabedian, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Laird, E.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA.
[Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Gardner, M.; Houtz, R.; Ko, W.; Kopecky, A.; Lander, R.; Mall, O.; Miceli, T.; Pellett, D.; Ricci-Tam, F.; Rutherford, B.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Yohay, R.] Univ Calif Davis, Davis, CA 95616 USA.
[Weber, M.; Andreev, V.; Felcini, M.; Cline, D.; Cousins, R.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Traczyk, P.; Valuev, V.; Veverka, J.] Univ Calif Los Angeles, Los Angeles, CA USA.
[Liu, H.; Babb, J.; Clare, R.; Dinardo, M. E.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Sharma, V.; Andrews, W.; Branson, J. G.; Cerati, G. B.; Cittolin, S.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Macneill, I.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pieri, M.; Sani, M.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, E.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Dias, F. A.; Apresyan, A.; Bornheim, A.; Chen, Y.; Di Marco, E.; Duarte, J.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Spiropulu, M.; Timciuc, V.; Veverka, J.; Wilkinson, R.; Xie, S.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA.
[Akgun, B.; Azzolini, V.; Calamba, A.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Liu, Y. F.; Paulini, M.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Nicolaou, C.; Cumalat, J. P.; Drell, B. R.; Ford, W. T.; Gaz, A.; Lopez, E. Luiggi; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA.
[Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Khukhunaishvili, A.; Kreis, B.; Mirman, N.; Kaufman, G. Nicolas; Patterson, J. R.; Ryd, A.; Salvati, E.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Tucker, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA.
[Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA.
[Abdullin, S.; Albrow, M.; Anderson, J.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Green, D.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jindariani, S.; Johnson, M.; Joshi, U.; Kilminster, B.; Klima, B.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Linacre, J.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Maruyama, S.; Mason, D.; McBride, P.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Taylor, L.; Tkaczyk, S.; Tran, N. V.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Cheng, T.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Milenovic, P.; Mitselmakher, G.; Muniz, L.; Park, M.; Remington, R.; Rinkevicius, A.; Sellers, R.; Skhirtladze, N.; Snowball, M.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA.
[Gaultney, V.; Hewamanage, S.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Veeraraghavan, V.; Weinberg, M.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Bucinskaite, I.; Callner, J.; Cavanaugh, R.; Evdokimov, O.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Strom, D.; Turner, P.; Varelas, N.] Univ Illinois, Chicago, IL USA.
[Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Onel, Y.; Ozok, F.; Sen, S.; Tan, P.; Tiras, E.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA.
[Barnett, B. A.; Blumenfeld, B.; Bolognesi, S.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA.
[Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Stringer, R.; Tinti, G.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA.
[Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.] Kansas State Univ, Manhattan, KS 66506 USA.
[Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Baden, A.; Boutemeur, M.; Calvert, B.; Eno, S. C.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Kolberg, T.; Lu, Y.; Marionneau, M.; Mignerey, A. C.; Pedro, K.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA.
[Apyan, A.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Kim, Y.; Klute, M.; Krajczar, K.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Wyslouch, B.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA.
[Cooper, S. I.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Kao, S. C.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA.
[Cremaldi, L. M.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.] Univ Mississippi, Oxford, MS USA.
[Avdeeva, E.; Bloom, K.; Bose, S.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA.
[Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Chasco, M.; Haley, J.; Nash, D.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA.
[Anastassov, A.; Kubik, A.; Lusito, L.; Mucia, N.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA.
[Antonelli, L.; Berry, D.; Brinkerhoff, A.; Chan, K. M.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Planer, M.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Wolf, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Bylsma, B.; Durkin, L. S.; Hill, C.; Hughes, R.; Kotov, K.; Ling, T. Y.; Puigh, D.; Rodenburg, M.; Vuosalo, C.; Williams, G.; Winer, B. L.] Ohio State Univ, Columbus, OH 43210 USA.
[Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hegeman, J.; Hunt, A.; Jindal, P.; Pegna, D. Lopes; Lujan, P.; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Raval, A.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Brownson, E.; Lopez, A.; Mendez, H.; Vargas, J. E. Ramirez] Univ Puerto Rico, Mayaguez, PR USA.
[Alagoz, E.; Barnes, V. E.; Benedetti, D.; Bolla, G.; Bortoletto, D.; De Mattia, M.; Everett, A.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Maroussov, V.; Merkel, R.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Marono, M. Vidal; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Guragain, S.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA.
[Li, W.; Adair, A.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, . R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Ferbel, T.; Garcia-Bellido, A.; Goldenzweig, P.; Han, J.; Harel, A.; Miner, D. C.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Malik, S.; Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.] Rockefeller Univ, New York, NY 10021 USA.
[Park, M.; Arora, S.; Barker, A.; Chou, J. P.; Contreras-Campana, C.; Contreras-Campana, E.; Duggan, D.; Ferencek, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Lath, A.; Panwalkar, S.; Patel, R.; Rekovic, V.; Robles, J.; Rose, K.; Salur, S.; Schnetzer, S.; Seitz, C.; Somalwar, S.; Stone, R.; Thomas, S.; Walker, M.] Rutgers State Univ, Piscataway, NJ USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA.
[Eusebi, R.; Flanagan, W.; Gilmore, J.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Perloff, A.; Roe, J.; Safonov, A.; Sakuma, T.; Sengupta, S.; Suarez, I.; Tatarinov, A.; Toback, D.] Texas A&M Univ, College Stn, TX USA.
[Akchurin, N.; Damgov, J.; Dragoiu, C.; Dudero, P. R.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Roh, Y.; Volobouev, I.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Delannoy, A. G.; Florez, C.; Greene, S.; Gurrola, A.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sharma, M.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37235 USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Wood, J.] Univ Virginia, Charlottesville, VA USA.
[Gollapinni, S.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Sakharov, A.] Wayne State Univ, Detroit, MI USA.
[Anderson, M.; Belknap, D. A.; Borrello, L.; Carlsmith, D.; Cepeda, M.; Dasu, S.; Friis, E.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Palmonari, F.; Pierro, G. A.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.] Univ Wisconsin, Madison, WI USA.
[Fabjan, C.; Fruehwirth, R.; Jeitler, M.; Krammer, M.; Wulz, C. -E.] Vienna Univ Technol, A-1040 Vienna, Austria.
[Assran, Y.] Suez Canal Univ, Suez, Egypt.
[Elgammal, S.] Zewail City Sci & Technol, Zewail, Egypt.
[Kamel, A. Ellithi] Cairo Univ, Cairo, Egypt.
[Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt.
[Radi, A.] British Univ Egypt, Cairo, Egypt.
[Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.] Univ Haute Alsace, Mulhouse, France.
[Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany.
[Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary.
[Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India.
[Arfaei, H.; Fahim, A.] Sharif Univ Technol, Tehran, Iran.
[Etesami, S. M.] Isfahan Univ Technol, Esfahan, Iran.
[Safarzadeh, B.] Islamic Azad Univ, Sci & Res Branch, Plasma Phys Res Ctr, Tehran, Iran.
[Colafranceschi, S.] Univ Rome, Fac Ingn, Rome, Italy.
[Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy.
[Meola, S.] Univ Guglielmo Marconi, Rome, Italy.
[Martini, L.] Univ Siena, I-53100 Siena, Italy.
[Serban, A. T.] Univ Bucharest, Fac Phys, Bucharest, Romania.
[Amsler, C.] Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.
[Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey.
[Cerci, S.; Cerci, D. Sunar; Tali, B.] Adiyaman Univ, Adiyaman, Turkey.
[Karapinar, G.] Izmir Inst Technol, Izmir, Turkey.
[Sogut, K.] Mersin Univ, Mersin, Turkey.
[Isildak, B.] Ozyegin Univ, Istanbul, Turkey.
[Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey.
[Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey.
[Sonmez, N.] Ege Univ, Izmir, Turkey.
[Belyaev, A.; Basso, L.] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.
[Jeng, G. Y.] Univ Sydney, Sydney, NSW 2006, Australia.
[Wasserbaech, S.] Utah Valley Univ, Orem, UT USA.
[Bilki, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey.
[Ozok, F.] Mimar Sinan Univ, Istanbul, Turkey.
RP Alverson, G (reprint author), Northeastern Univ, Boston, MA 02115 USA.
EM George.Alverson@cern.ch
RI Montanari, Alessandro/J-2420-2012; Gribushin, Andrei/J-4225-2012;
Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz,
Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa,
Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini,
Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Ferguson,
Thomas/O-3444-2014; Benussi, Luigi/O-9684-2014; Popov,
Andrey/E-1052-2012; Menasce, Dario Livio/A-2168-2016; Haj Ahmad,
Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh,
Junghwan/Q-3720-2016; Ruiz, Alberto/E-4473-2011; Govoni,
Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014;
Gerbaudo, Davide/J-4536-2012; Arce, Pedro/L-1268-2014; Flix,
Josep/G-5414-2012; Della Ricca, Giuseppe/B-6826-2013; Tomei,
Thiago/E-7091-2012; Azarkin, Maxim/N-2578-2015; Dubinin,
Mikhail/I-3942-2016; Paganoni, Marco/A-4235-2016; Kirakosyan,
Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013;
Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016;
Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014;
My, Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Ragazzi,
Stefano/D-2463-2009; Rovelli, Tiziano/K-4432-2015; Dremin,
Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov,
Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; TUVE',
Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Leonidov,
Andrey/P-3197-2014; vilar, rocio/P-8480-2014; Dahms,
Torsten/A-8453-2015; da Cruz e Silva, Cristovao/K-7229-2013; Grandi,
Claudio/B-5654-2015; Raidal, Martti/F-4436-2012; Lazzizzera,
Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro,
Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Stahl,
Achim/E-8846-2011; Trocsanyi, Zoltan/A-5598-2009; Konecki,
Marcin/G-4164-2015; Tinoco Mendes, Andre David/D-4314-2011; Marlow,
Daniel/C-9132-2014; de Jesus Damiao, Dilson/G-6218-2012; Oguri,
Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Novaes,
Sergio/D-3532-2012; Bartalini, Paolo/E-2512-2014; Alves,
Gilvan/C-4007-2013; Santoro, Alberto/E-7932-2014; Ligabue,
Franco/F-3432-2014; Wulz, Claudia-Elisabeth/H-5657-2011; Codispoti,
Giuseppe/F-6574-2014; Wimpenny, Stephen/K-8848-2013; Markina,
Anastasia/E-3390-2012; Dudko, Lev/D-7127-2012; Dermenev,
Alexander/M-4979-2013; Mundim, Luiz/A-1291-2012; Tinti,
Gemma/I-5886-2013; Ivanov, Andrew/A-7982-2013; Lokhtin,
Igor/D-7004-2012; Petrushanko, Sergey/D-6880-2012; Hill,
Christopher/B-5371-2012; Liu, Sheng/K-2815-2013; Zhukov,
Valery/K-3615-2013; Venturi, Andrea/J-1877-2012
OI Montanari, Alessandro/0000-0003-2748-6373; Cerrada,
Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Calvo
Alamillo, Enrique/0000-0002-1100-2963; Paulini,
Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023;
Ferguson, Thomas/0000-0001-5822-3731; Benussi,
Luigi/0000-0002-2363-8889; Vidal Marono, Miguel/0000-0002-2590-5987;
Goldstein, Joel/0000-0003-1591-6014; Heath, Helen/0000-0001-6576-9740;
Grassi, Marco/0000-0003-2422-6736; Ulrich, Ralf/0000-0002-2535-402X;
Gutsche, Oliver/0000-0002-8015-9622; Torassa, Ezio/0000-0003-2321-0599;
Verdier, Patrice/0000-0003-3090-2948; Martinez Ruiz del Arbol,
Pablo/0000-0002-7737-5121; Demaria, Natale/0000-0003-0743-9465; Staiano,
Amedeo/0000-0003-1803-624X; Ciulli, Vitaliano/0000-0003-1947-3396;
Tonelli, Guido Emilio/0000-0003-2606-9156; Beuselinck,
Raymond/0000-0003-2613-7446; Abbiendi, Giovanni/0000-0003-4499-7562;
HSIUNG, YEE/0000-0003-4801-1238; Costa, Salvatore/0000-0001-9919-0569;
Kasemann, Matthias/0000-0002-0429-2448; WANG,
MIN-ZU/0000-0002-0979-8341; Popov, Andrey/0000-0002-1207-0984;
Landsberg, Greg/0000-0002-4184-9380; Rizzi, Andrea/0000-0002-4543-2718;
Gershtein, Yuri/0000-0002-4871-5449; Malik, Sudhir/0000-0002-6356-2655;
Leonidopoulos, Christos/0000-0002-7241-2114; Blekman,
Freya/0000-0002-7366-7098; Boccali, Tommaso/0000-0002-9930-9299;
Menasce, Dario Livio/0000-0002-9918-1686; Bilki,
Burak/0000-0001-9515-3306; Haj Ahmad, Wael/0000-0003-1491-0446; Xie,
Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh,
Junghwan/0000-0002-1129-2083; Ruiz, Alberto/0000-0002-3639-0368; Govoni,
Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan,
Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Vieira de
Castro Ferreira da Silva, Pedro Manuel/0000-0002-5725-041X; Toback,
David/0000-0003-3457-4144; CHANG, PAO-TI/0000-0003-4064-388X; Reis,
Thomas/0000-0003-3703-6624; Arce, Pedro/0000-0003-3009-0484; Flix,
Josep/0000-0003-2688-8047; Della Ricca, Giuseppe/0000-0003-2831-6982;
Tomei, Thiago/0000-0002-1809-5226; Dubinin, Mikhail/0000-0002-7766-7175;
Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X;
Seixas, Joao/0000-0002-7531-0842; Vilela Pereira,
Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108;
Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya,
Cristina/0000-0001-8057-9152; My, Salvatore/0000-0002-9938-2680;
Matorras, Francisco/0000-0003-4295-5668; Ragazzi,
Stefano/0000-0001-8219-2074; Rovelli, Tiziano/0000-0002-9746-4842;
TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434;
Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070;
Lazzizzera, Ignazio/0000-0001-5092-7531; Sen,
Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306;
Belyaev, Alexander/0000-0002-1733-4408; Stahl,
Achim/0000-0002-8369-7506; Trocsanyi, Zoltan/0000-0002-2129-1279;
Konecki, Marcin/0000-0001-9482-4841; Tinoco Mendes, Andre
David/0000-0001-5854-7699; de Jesus Damiao, Dilson/0000-0002-3769-1680;
Novaes, Sergio/0000-0003-0471-8549; Ligabue, Franco/0000-0002-1549-7107;
Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Codispoti,
Giuseppe/0000-0003-0217-7021; Wimpenny, Stephen/0000-0003-0505-4908;
Dudko, Lev/0000-0002-4462-3192; Mundim, Luiz/0000-0001-9964-7805;
Ivanov, Andrew/0000-0002-9270-5643; Hill,
Christopher/0000-0003-0059-0779;
FU BMWF; FWF (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP
(Brazil); MEYS (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS
(Colombia); MSES (Croatia); RPF (Cyprus); MoER [SF0690030s09]; ERDF
(Estonia); Academy of Finland; MEC; HIP (Finland); CEA; CNRS/IN2P3
(France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary);
DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU
(Republic of Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI
(Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE; NSC (Poland); FCT
(Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR
(Ukraine); JINR (Uzbekistan); MON; RosAtom; RAS; RFBR (Russia); MSTD
(Serbia); SEIDI; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC
(Taipei); ThEPCenter; IPST; NSTDA (Thailand); TUBITAK; TAEK (Turkey);
NASU (Ukraine); STFC (United Kingdom); DOE; NSF (USA)
FX We congratulate our colleagues in the CERN accelerator departments for
the excellent performance of the LHC and thank the technical and
administrative staffs at CERN and at other CMS institutes for their
contributions to the success of the CMS effort. In addition, we
gratefully acknowledge the computing centres and personnel of the
Worldwide LHC Computing Grid for delivering so effectively the computing
infrastructure essential to our analyses. Finally, we acknowledge the
enduring support for the construction and operation of the LHC and the
CMS detector provided by the following funding agencies: BMWF and FWF
(Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP
(Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China);
COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09
and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and
CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA
and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN
(Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV,
CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC
(Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia,
Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR
(Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies
(Switzerland); NSC (Taipei); ThEPCenter, IPST and NSTDA (Thailand);
TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE
and NSF (USA).
NR 50
TC 18
Z9 18
U1 4
U2 111
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 25
PY 2013
VL 723
IS 4-5
BP 280
EP 301
DI 10.1016/j.physletb.2013.05.040
PG 22
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 168ZB
UT WOS:000320745400004
ER
PT J
AU Fukushima, K
Kashiwa, K
AF Fukushima, Kenji
Kashiwa, Kouji
TI Polyakov loop and QCD thermodynamics from the gluon and ghost
propagators
SO PHYSICS LETTERS B
LA English
DT Article
ID INFRARED BEHAVIOR; LANDAU GAUGE; FINITE-TEMPERATURE; PHASE-STRUCTURE;
MEAN-FIELD; MODEL; DECONFINEMENT; CONFINEMENT; DIAGRAM; SU(3)
AB We investigate quark deconfinement by calculating the effective potential of the Polyakov loop using the non-perturbative propagators in the Landau gauge measured in the finite-temperature lattice simulation. With the leading term in the 2-particle-irreducible formalism the resultant effective potential exhibits a first-order phase transitions for the pure SU(3) Yang-Mills theory at the critical temperature consistent with the empirical value. We also estimate the thermodynamic quantities to confirm qualitative agreement with the lattice data near the critical temperature. We then apply our effective potential to the chiral model-study and calculate the order parameters and the thermodynamic quantities. Unlike the case in the pure Yang-Mills theory the thermodynamic quantities are sensitive to the temperature dependence of the non-perturbative propagators, while the behavior of the order parameters is less sensitive, which implies the importance of the precise determination of the temperature-dependent propagators. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Fukushima, Kenji] Keio Univ, Dept Phys, Kanagawa 2238522, Japan.
[Kashiwa, Kouji] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA.
RP Fukushima, K (reprint author), Keio Univ, Dept Phys, Kanagawa 2238522, Japan.
EM fuku@rk.phys.keio.ac.jp
OI Fukushima, Kenji/0000-0003-0899-740X
FU RIKEN; [24740169]
FX The authors thank Wolfram Weise for kind hospitality at TUM where this
work was initiated. They also thank Jens Braun, David Dudal, Michael
Ilgenfritz, and Marco Ruggieri for comments. K.F. thanks Jan Pawlowski
and Nan Su for useful discussions. K.K. is supported by RIKEN Special
Postdoctoral Researchers Program. K.F. is supported by Grant-in-Aid for
Young Scientists B (24740169).
NR 70
TC 19
Z9 19
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 25
PY 2013
VL 723
IS 4-5
BP 360
EP 364
DI 10.1016/j.physletb.2013.05.037
PG 5
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 168ZB
UT WOS:000320745400014
ER
PT J
AU Sutter, EA
Tong, X
Jungjohann, K
Sutter, PW
AF Sutter, Eli A.
Tong, Xiao
Jungjohann, Katherine
Sutter, Peter W.
TI Oxidation of nanoscale Au-In alloy particles as a possible route toward
stable Au-based catalysts
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE transmission electron microscopy; temperature programmed desorption;
X-ray photoelectron spectroscopy
ID AMINE N-OXIDES; LOW-TEMPERATURE; CO OXIDATION; ROOM-TEMPERATURE;
NANOPARTICLES; GOLD; KINETICS; ADSORPTION; OXYGEN; INTERDIFFUSION
AB The oxidation of bimetallic alloy nanoparticles comprising a noble and a nonnoble metal is expected to cause the formation of a single-component surface oxide of the nonnoble metal, surrounding a core enriched with the noble metal. Studying the room temperature oxidation of Au-In nanoparticles, we show that this simple picture does not apply to an important class of bimetallic alloys, in which the oxidation proceeds via predominant oxygen diffusion. Instead of a crystalline In2O3 shell, such oxidation leads to an amorphous shell of mixed Au-In oxide that remains stable to high temperatures and whose surface layer is enriched with Au. The Au-rich mixed oxide is capable of adsorbing both CO and O-2 and converting them to CO2, which desorbs near room temperature. The oxidation of Au-In alloys to a mixed Au-In oxide shows significant promise as a viable approach toward Au-based oxidation catalysts, which do not require any complex synthesis processes and resist deactivation up to at least 300 degrees C.
C1 [Sutter, Eli A.; Tong, Xiao; Jungjohann, Katherine; Sutter, Peter W.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Sutter, EA (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM esutter@bnl.gov
FU Department of Energy [DE-AC02-98CH10886]
FX We thank Kim Kisslinger for technical assistance. This work was
performed at the Center for Functional Nanomaterials, Brookhaven
National Laboratory, under the auspices of the Department of Energy,
under Contract DE-AC02-98CH10886.
NR 48
TC 10
Z9 10
U1 2
U2 42
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 25
PY 2013
VL 110
IS 26
BP 10519
EP 10524
DI 10.1073/pnas.1305388110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179EY
UT WOS:000321503700028
PM 23754412
ER
PT J
AU Guthrie, M
Boehler, R
Tulk, CA
Molaison, JJ
dos Santos, AM
Li, K
Hemley, RJ
AF Guthrie, Malcolm
Boehler, Reinhard
Tulk, Christopher A.
Molaison, Jamie J.
dos Santos, Antonio M.
Li, Kuo
Hemley, Russell J.
TI Neutron diffraction observations of interstitial protons in dense ice
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE crystallography; high pressure; water
ID HYDROGEN-BOND SYMMETRIZATION; X-RAY-DIFFRACTION; HIGH-PRESSURE;
DISORDERED STRUCTURE; INFRARED-ABSORPTION; RAMAN-SPECTROSCOPY; POWDER
DIFFRACTION; GPA; VII; PHASE
AB The motif of distinct H2O molecules in H-bonded networks is believed to persist up to the densest molecular phase of ice. At even higher pressures, where the molecule dissociates, it is generally assumed that the proton remains localized within these same networks. We report neutron-diffraction measurements on D2O that reveal the location of the D atoms directly up to 52 GPa, a pressure regime not previously accessible to this technique. The data show the onset of a structural change at similar to 13 GPa and cannot be described by the conventional network structure of ice VII above similar to 26 GPa. Our measurements are consistent with substantial deuteron density in the octahedral, interstitial voids of the oxygen lattice. The observation of this "interstitial" ice VII form provides a framework for understanding the evolution of hydrogen bonding in ice that contrasts with the conventional picture. It may also be a precursor for the superionic phase reported at even higher pressure with important consequences for our understanding of dense matter and planetary interiors.
C1 [Guthrie, Malcolm; Boehler, Reinhard; Li, Kuo; Hemley, Russell J.] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
[Tulk, Christopher A.; Molaison, Jamie J.; dos Santos, Antonio M.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA.
RP Guthrie, M (reprint author), Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
EM mguthrie@ciw.edu; hemley@gl.ciw.edu
RI dos Santos, Antonio/A-5602-2016; Boehler, Reinhard/L-3971-2016; Tulk,
Chris/R-6088-2016
OI dos Santos, Antonio/0000-0001-6900-0816; Boehler,
Reinhard/0000-0003-0222-6997; Tulk, Chris/0000-0003-3400-3878
FU EFree, an Energy Frontier Research Center; US Department of Energy
(DOE), Office of Science, Office of Basic Energy Sciences (BES)
[DE-SC0001057]; Scientific User Facilities division, BES, DOE
[DE-AC05-00OR22725]; UT-Battelle, LLC
FX We thank M. Somayazulu and A. Karandikar for experimental assistance and
H. K. Mao, A. F. Goncharov, R. E. Cohen, R. Von Dreele, and B. H. Toby
for discussions. This work is supported by EFree, an Energy Frontier
Research Center funded by the US Department of Energy (DOE), Office of
Science, Office of Basic Energy Sciences (BES) under Award DE-SC0001057.
Research conducted at the Spallation Neutron Source (SNS) was supported
by the Scientific User Facilities division, BES, DOE, under Contract
DE-AC05-00OR22725 with UT-Battelle, LLC.
NR 38
TC 16
Z9 16
U1 2
U2 62
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 25
PY 2013
VL 110
IS 26
BP 10552
EP 10556
DI 10.1073/pnas.1309277110
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179EY
UT WOS:000321503700034
PM 23757495
ER
PT J
AU Lu, SF
Li, QZ
Wei, HR
Chang, MJ
Tunlaya-Anukit, S
Kim, H
Liu, J
Song, JY
Sun, YH
Yuan, LC
Yeh, TF
Peszlen, I
Ralph, J
Sederoff, RR
Chiang, VL
AF Lu, Shanfa
Li, Quanzi
Wei, Hairong
Chang, Mao-Ju
Tunlaya-Anukit, Sermsawat
Kim, Hoon
Liu, Jie
Song, Jingyuan
Sun, Ying-Hsuan
Yuan, Lichai
Yeh, Ting-Feng
Peszlen, Ilona
Ralph, John
Sederoff, Ronald R.
Chiang, Vincent L.
TI Ptr-miR397a is a negative regulator of laccase genes affecting lignin
content in Populus trichocarpa
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
ID STRESS-RESPONSIVE MICRORNAS; MOLECULAR-CLONING; DOWN-REGULATION; COPPER;
BIOSYNTHESIS; ARABIDOPSIS; PEROXIDASE; EXPRESSION; PLANTS;
IDENTIFICATION
AB Laccases, as early as 1959, were proposed to catalyze the oxidative polymerization of monolignols. Genetic evidence in support of this hypothesis has been elusive due to functional redundancy of laccase genes. An Arabidopsis double mutant demonstrated the involvement of laccases in lignin biosynthesis. We previously identified a subset of laccase genes to be targets of a microRNA (miRNA) ptr-miR397a in Populus trichocarpa. To elucidate the roles of ptr-miR397a and its targets, we characterized the laccase gene family and identified 49 laccase gene models, of which 29 were predicted to be targets of ptr-miR397a. We overexpressed Ptr-MIR397a in transgenic P. trichocarpa. In each of all nine transgenic lines tested, 17 PtrLACs were down-regulated as analyzed by RNA-seq. Transgenic lines with severe reduction in the expression of these laccase genes resulted in an similar to 40% decrease in the total laccase activity. Overexpression of Ptr-MIR397a in these transgenic lines also reduced lignin content, whereas levels of all monolignol biosynthetic gene transcripts remained unchanged. A hierarchical genetic regulatory network(GRN) built by a bottom-up graphic Gaussian model algorithm provides additional support for a role of ptr-miR397a as a negative regulator of laccases for lignin biosynthesis. Full transcriptome-based differential gene expression in the overexpressed transgenics and protein domain analyses implicate previously unidentified transcription factors and their targets in an extended hierarchical GRN including ptr-miR397a and laccases that coregulate lignin biosynthesis in wood formation. Ptr-miR397a, laccases, and other regulatory components of this network may provide additional strategies for genetic manipulation of lignin content.
C1 [Lu, Shanfa; Song, Jingyuan; Yuan, Lichai] Chinese Acad Med Sci, Inst Med Plant Dev, Beijing 100193, Peoples R China.
[Lu, Shanfa; Song, Jingyuan; Yuan, Lichai] Peking Union Med Coll, Beijing 100193, Peoples R China.
[Li, Quanzi; Tunlaya-Anukit, Sermsawat; Liu, Jie; Sederoff, Ronald R.; Chiang, Vincent L.] N Carolina State Univ, Dept Forestry & Environm Resources, Forest Biotechnol Grp, Raleigh, NC 27695 USA.
[Li, Quanzi] Shandong Agr Univ, Coll Forestry, Tai An 271018, Shandong, Peoples R China.
[Wei, Hairong] Michigan Technol Univ, Sch Forest Resources & Environm Sci, Houghton, MI 49931 USA.
[Chang, Mao-Ju; Yeh, Ting-Feng] Natl Taiwan Univ, Sch Forestry & Resource Conservat, Taipei 10617, Taiwan.
[Kim, Hoon; Ralph, John] Univ Wisconsin, Wisconsin Energy Inst, Dept Biochem, Madison, WI 53726 USA.
[Kim, Hoon; Ralph, John] Univ Wisconsin, Dept Energy, Great Lakes Bioenergy Res Ctr, Madison, WI 53726 USA.
[Sun, Ying-Hsuan] Natl Chung Hsing Univ, Dept Forestry, Taichung 40227, Taiwan.
[Peszlen, Ilona] N Carolina State Univ, Dept Forest Biomat, Raleigh, NC 27695 USA.
RP Sederoff, RR (reprint author), N Carolina State Univ, Dept Forestry & Environm Resources, Forest Biotechnol Grp, Raleigh, NC 27695 USA.
EM ron_sederoff@ncsu.edu; vchiang@ncsu.edu
RI Liu, Jie/E-6220-2012;
OI Yeh, Ting-Feng/0000-0002-4114-6714
FU National Science Foundation Plant Genome Research Program [DBI-0922391];
National Key Basic Research Program of China (973 program)
[2012CB114502]; National Natural Science Foundation of China [31070534];
DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER)
[DE-FC02-07ER64494]; North Carolina State University Forest
Biotechnology Industrial Research Consortium [556051]
FX This work was supported by grants from National Science Foundation Plant
Genome Research Program Grant (DBI-0922391) to V. L. C.; the National
Key Basic Research Program of China (973 program) (2012CB114502) to S.
L.; the National Natural Science Foundation of China (31070534) to L.Y.;
the DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER
DE-FC02-07ER64494) to J.R. and H. K., and the North Carolina State
University Forest Biotechnology Industrial Research Consortium (grant
no. 556051) to Q. L. and J.L.
NR 41
TC 76
Z9 84
U1 2
U2 74
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 25
PY 2013
VL 110
IS 26
BP 10848
EP 10853
DI 10.1073/pnas.1308936110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179EY
UT WOS:000321503700084
PM 23754401
ER
PT J
AU Oosterkamp, MJ
Veuskens, T
Saia, FT
Weelink, SAB
Goodwin, LA
Daligault, HE
Bruce, DC
Detter, JC
Tapia, R
Han, CS
Land, ML
Hauser, LJ
Langenhoff, AAM
Gerritse, J
van Berkel, WJH
Pieper, DH
Junca, H
Smidt, H
Schraa, G
Davids, M
Schaap, PJ
Plugge, CM
Stams, AJM
AF Oosterkamp, Margreet J.
Veuskens, Teun
Saia, Flavia Talarico
Weelink, Sander A. B.
Goodwin, Lynne A.
Daligault, Hajnalka E.
Bruce, David C.
Detter, John C.
Tapia, Roxanne
Han, Cliff S.
Land, Miriam L.
Hauser, Loren J.
Langenhoff, Alette A. M.
Gerritse, Jan
van Berkel, Willem J. H.
Pieper, Dietmar H.
Junca, Howard
Smidt, Hauke
Schraa, Gosse
Davids, Mark
Schaap, Peter J.
Plugge, Caroline M.
Stams, Alfons J. M.
TI Genome Analysis and Physiological Comparison of Alicycliphilus
denitrificans Strains BC and K601(T)
SO PLOS ONE
LA English
DT Article
ID PERIPLASMIC NITRATE REDUCTASE; ANAEROBIC BENZENE DEGRADATION;
CYTOCHROME-C-OXIDASE; AROMATIC-COMPOUNDS; PERCHLORATE REDUCTION;
CHLORITE DISMUTASE; REDUCING BACTERIA; RNA GENES; 1ST STEP; METABOLISM
AB The genomes of the Betaproteobacteria Alicycliphilus denitrificans strains BC and K601(T) have been sequenced to get insight into the physiology of the two strains. Strain BC degrades benzene with chlorate as electron acceptor. The cyclohexanol-degrading denitrifying strain K601(T) is not able to use chlorate as electron acceptor, while strain BC cannot degrade cyclohexanol. The 16S rRNA sequences of strains BC and K601(T) are identical and the fatty acid methyl ester patterns of the strains are similar. Basic Local Alignment Search Tool (BLAST) analysis of predicted open reading frames of both strains showed most hits with Acidovorax sp. JS42, a bacterium that degrades nitro-aromatics. The genomes include strain-specific plasmids (pAlide201 in strain K601(T) and pAlide01 and pAlide02 in strain BC). Key genes of chlorate reduction in strain BC were located on a 120 kb megaplasmid (pAlide01), which was absent in strain K601(T). Genes involved in cyclohexanol degradation were only found in strain K601(T). Benzene and toluene are degraded via oxygenase-mediated pathways in both strains. Genes involved in the meta-cleavage pathway of catechol are present in the genomes of both strains. Strain BC also contains all genes of the ortho-cleavage pathway. The large number of mono-and dioxygenase genes in the genomes suggests that the two strains have a broader substrate range than known thus far.
C1 [Oosterkamp, Margreet J.; Veuskens, Teun; Saia, Flavia Talarico; Weelink, Sander A. B.; Smidt, Hauke; Schraa, Gosse; Plugge, Caroline M.; Stams, Alfons J. M.] Wageningen Univ, Microbiol Lab, NL-6700 AP Wageningen, Netherlands.
[Goodwin, Lynne A.; Daligault, Hajnalka E.; Bruce, David C.; Detter, John C.; Tapia, Roxanne; Han, Cliff S.] Los Alamos Natl Lab, Joint Genome Inst, Los Alamos, NM USA.
[Land, Miriam L.; Hauser, Loren J.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN USA.
[Land, Miriam L.; Hauser, Loren J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA.
[Langenhoff, Alette A. M.; Gerritse, Jan] Deltares, Utrecht, Netherlands.
[van Berkel, Willem J. H.] Wageningen Univ, Biochem Lab, NL-6700 AP Wageningen, Netherlands.
[Pieper, Dietmar H.] Helmholz Ctr Infect Res, Microbial Interact & Proc Res Grp, Braunschweig, Germany.
[Junca, Howard] CorpoGen, Res Grp Microbial Ecol Metab Genom & Evolut Commu, Bogota, Colombia.
[Davids, Mark; Schaap, Peter J.] Wageningen Univ, Lab Syst & Synth Biol, NL-6700 AP Wageningen, Netherlands.
[Stams, Alfons J. M.] Univ Minho, Ctr Biol Engn, Braga, Portugal.
RP Stams, AJM (reprint author), Wageningen Univ, Microbiol Lab, NL-6700 AP Wageningen, Netherlands.
EM fons.stams@wur.nl
RI van Berkel, Willem/O-2431-2014; Land, Miriam/A-6200-2011; Stams,
Alfons/C-8167-2014;
OI van Berkel, Willem/0000-0002-6551-2782; Land,
Miriam/0000-0001-7102-0031; Stams, Alfons/0000-0001-7840-6500; Smidt,
Hauke/0000-0002-6138-5026; Junca, Howard/0000-0003-4546-6229
FU Technology Foundation; Applied Science Division (STW) of the Netherlands
Organization for Scientific Research (NWO) [08053]; graduate school
WIMEK (Wageningen Institute for Environment and Climate Research, which
is part of SENSE Research School for Socio-Economic and Natural Sciences
of the Environment); SKB (Dutch Centre for Soil Quality Management and
Knowledge Transfer); Consolider project [CSD-2007-00055]; FAPESP (the
State of Sao Paulo Research Foundation) [2006-01997/ 5]; Office of
Science of the United States Department of Energy [DE-AC02-05CH11231];
ERC (European Research Counsil) [323009]
FX This research was supported by the Technology Foundation, the Applied
Science Division (STW) of the Netherlands Organization for Scientific
Research (NWO), project number 08053, the graduate school WIMEK
(Wageningen Institute for Environment and Climate Research, which is
part of SENSE Research School for Socio-Economic and Natural Sciences of
the Environment, www.wimek-new.wur.nl and www.sense.nl), SKB (Dutch
Centre for Soil Quality Management and Knowledge Transfer,
www.skbodem.nl) and the Consolider project CSD-2007-00055. The research
was incorporated in the TRIAS (TRIpartite Approaches 469 toward Soil
systems processes) program
(http://www.nwo.nl/en/research-and-results/programmes/alw/trias-triparti
te-approach-to-soil-system-processes/index.html). Flavia Talarico Saia
was supported by a FAPESP (the State of Sao Paulo Research Foundation)
scholarship (2006-01997/ 5). The work conducted by the DOE JGI is
supported by the Office of Science of the United States Department of
Energy under contract number DE-AC02-05CH11231. Alfons Stams
acknowledges support by an ERC (European Research Counsil) advanced
grant (project 323009). The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 75
TC 8
Z9 8
U1 0
U2 74
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 25
PY 2013
VL 8
IS 6
AR e66971
DI 10.1371/journal.pone.0066971
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 175IB
UT WOS:000321223000055
PM 23825601
ER
PT J
AU Lorenz, S
Cantor, AJ
Rape, M
Kuriyan, J
AF Lorenz, Sonja
Cantor, Aaron J.
Rape, Michael
Kuriyan, John
TI Macromolecular juggling by ubiquitylation enzymes
SO BMC BIOLOGY
LA English
DT Review
ID UBIQUITIN-ACTIVATING ENZYME; INDUCED CONFORMATIONAL-CHANGE; COLI
THIOREDOXIN REDUCTASE; MITOTIC CHECKPOINT COMPLEX; CULLIN-RING LIGASES;
ESCHERICHIA-COLI; C-CBL; STRUCTURAL BASIS; CRYSTAL-STRUCTURE; TYROSINE
PHOSPHORYLATION
AB The posttranslational modification of target proteins with ubiquitin and ubiquitin-like proteins is accomplished by the sequential action of E1, E2, and E3 enzymes. Members of the E1 and E3 enzyme families can undergo particularly large conformational changes during their catalytic cycles, involving the remodeling of domain interfaces. This enables the efficient, directed and regulated handover of ubiquitin from one carrier to the next one. We review some of these conformational transformations, as revealed by crystallographic studies.
C1 [Lorenz, Sonja; Cantor, Aaron J.; Rape, Michael; Kuriyan, John] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Lorenz, Sonja; Cantor, Aaron J.; Rape, Michael; Kuriyan, John] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Kuriyan, J (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM kuriyan@berkeley.edu
OI Lorenz, Sonja/0000-0002-9639-2381
FU Leukemia and Lymphoma Society; University of California Cancer Research
Coordinating Committee Graduate Fellowship
FX We acknowledge support by a Leukemia and Lymphoma Society postdoctoral
fellowship award (SL) and a University of California Cancer Research
Coordinating Committee Graduate Fellowship (AJC). We thank Dr Tiago
Barros for assistance with preparation of the movie.
NR 105
TC 19
Z9 19
U1 1
U2 17
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1741-7007
J9 BMC BIOL
JI BMC Biol.
PD JUN 25
PY 2013
VL 11
AR 65
DI 10.1186/1741-7007-11-65
PG 12
WC Biology
SC Life Sciences & Biomedicine - Other Topics
GA 170OI
UT WOS:000320862300001
PM 23800009
ER
PT J
AU Wang, YJ
Tsai, WF
Lin, H
Xu, SY
Neupane, M
Hasan, MZ
Bansil, A
AF Wang, Yung Jui
Tsai, Wei-Feng
Lin, Hsin
Xu, Su-Yang
Neupane, M.
Hasan, M. Z.
Bansil, A.
TI Nontrivial spin texture of the coaxial Dirac cones on the surface of
topological crystalline insulator SnTe
SO PHYSICAL REVIEW B
LA English
DT Article
ID TRANSITION; PHASE
AB We present first-principles calculations of the nontrivial surface states and their spin textures in the topological crystalline insulator SnTe. The surface state dispersion on the [001] surface exhibits four Dirac cones centered along the intersection of the mirror plane and the surface plane. We propose a simple model of two interacting coaxial Dirac cones to describe both the surface state dispersion and the associated spin texture. The out-of-plane spin polarization is found to be zero due to the crystalline and time-reversal symmetries. The in-plane spin texture shows helicity with some distortion due to the interaction of the two coaxial Dirac cones, indicating a nontrivial mirror Chern number of -2, distinct from the value of -1 in a Z(2) topological insulator such as Bi/Sb alloys or Bi2Se3. The surface state dispersion and its spin texture would provide an experimentally accessible signature for determining the nontrivial mirror Chern number.
C1 [Wang, Yung Jui; Lin, Hsin; Bansil, A.] Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
[Wang, Yung Jui] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94305 USA.
[Tsai, Wei-Feng] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan.
[Xu, Su-Yang; Neupane, M.; Hasan, M. Z.] Princeton Univ, Joseph Henry Lab, Dept Phys, Princeton, NJ 08544 USA.
RP Wang, YJ (reprint author), Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
RI HASAN, M. Zahid/D-8237-2012; Lin, Hsin/F-9568-2012
OI Lin, Hsin/0000-0002-4688-2315
FU Division of Materials Science and Engineering, Basic Energy Sciences, US
Department of Energy [DE-FG02-07ER46352, DE-FG-02-05ER46200,
AC02-05CH11231]; Advanced Light Source, Berkeley; NSC in Taiwan
[100-2112-M-110-001-MY2]
FX It is a pleasure to thank Liang Fu and Chen Fang for useful discussions.
The work at Northeastern and Princeton is supported by the Division of
Materials Science and Engineering, Basic Energy Sciences, US Department
of Energy, Grants No. DE-FG02-07ER46352, No. DE-FG-02-05ER46200, and No.
AC02-05CH11231, and benefited from theory support at the Advanced Light
Source, Berkeley, and the allocation of supercomputer time at NERSC and
Northeastern University's Advanced Scientific Computation Center (ASCC).
W.F.T. is supported by the NSC in Taiwan under Grant No.
100-2112-M-110-001-MY2.
NR 22
TC 28
Z9 28
U1 3
U2 49
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 25
PY 2013
VL 87
IS 23
AR 235317
DI 10.1103/PhysRevB.87.235317
PG 5
WC Physics, Condensed Matter
SC Physics
GA 171TX
UT WOS:000320953300003
ER
PT J
AU Liu, YH
Daughton, W
Karimabadi, H
Li, H
Roytershteyn, V
AF Liu, Yi-Hsin
Daughton, W.
Karimabadi, H.
Li, H.
Roytershteyn, V.
TI Bifurcated Structure of the Electron Diffusion Region in
Three-Dimensional Magnetic Reconnection
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SOLAR CORONA; FIELD LINES; INSTABILITIES; MAGNETOPAUSE; SIMULATIONS;
PLASMA; SHEAR
AB Three-dimensional kinetic simulations of magnetic reconnection reveal that the electron diffusion region is composed of two or more current sheets in regimes with weak magnetic shear angles phi less than or similar to 80 degrees. This new morphology is explained by oblique tearing modes which produce flux ropes while simultaneously driving enhanced current at multiple resonance surfaces. This physics persists into the nonlinear regime leading to multiple electron layers embedded within a larger Alfvenic inflow and outflow. Surprisingly, the thickness of these layers and the reconnection rate both remain comparable to two-dimensional models. The parallel electric fields are supported predominantly by the electron pressure tensor and electron inertia, while turbulent dissipation remains small.
C1 [Liu, Yi-Hsin; Daughton, W.; Li, H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Karimabadi, H.; Roytershteyn, V.] SciberQuest, Del Mar, CA 92014 USA.
RP Liu, YH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Daughton, William/L-9661-2013;
OI Roytershteyn, Vadim/0000-0003-1745-7587
FU NASA through the Heliophysics Theory program; DOE/OFES through CMSO;
LDRD program at LANL; NASA [NNH11CC65C]; NSF through EAGER [1105084];
NSF [OCI 07-25070]; state of Illinois
FX We are grateful for support from NASA through the Heliophysics Theory
program, DOE/OFES through CMSO, and from the LDRD program at LANL.
Contributions from H. K. and V. R. were supported by NASA Grant No.
NNH11CC65C, and NSF through EAGER 1105084. This research is part of the
Blue Waters sustained-petascale computing project, which is supported by
the NSF (OCI 07-25070) and the state of Illinois. Additional simulations
were performed at the National Center for Computational Sciences at ORNL
and with LANL institutional computing. We thank Burlen Loring for
visualization assistance with ParaView.
NR 32
TC 29
Z9 29
U1 4
U2 20
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 25
PY 2013
VL 110
IS 26
AR 265004
DI 10.1103/PhysRevLett.110.265004
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 171WH
UT WOS:000320960300010
PM 23848886
ER
PT J
AU Qin, H
Liu, WD
Li, H
Squire, J
AF Qin, Hong
Liu, Wandong
Li, Hong
Squire, Jonathan
TI Comment on "Woltjer-Taylor State without Taylor's Conjecture: Plasma
Relaxation at All Wavelengths" Reply
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
C1 [Qin, Hong; Liu, Wandong; Li, Hong] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.
[Qin, Hong] Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Anhui, Peoples R China.
[Qin, Hong; Squire, Jonathan] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Qin, H (reprint author), Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.
RI Liu, Wandong/K-6119-2012
NR 2
TC 1
Z9 1
U1 4
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 25
PY 2013
VL 110
IS 26
AR 269502
DI 10.1103/PhysRevLett.110.269502
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 171WH
UT WOS:000320960300020
PM 23848930
ER
PT J
AU Im, KS
Cheong, SK
Powell, CF
Lai, MCD
Wang, J
AF Im, Kyoung-Su
Cheong, Seong-Kyun
Powell, Christopher F.
Lai, Ming-chia D.
Wang, Jin
TI Unraveling the Geometry Dependence of In-Nozzle Cavitation in
High-Pressure Injectors
SO SCIENTIFIC REPORTS
LA English
DT Article
ID FUEL SPRAYS; SHOCK-WAVES; LIQUID JET; FLOWS; MODEL; EROSION;
ATOMIZATION; RADIOGRAPHY; ENGINE
AB Cavitation is an intricate multiphase phenomenon that interplays with turbulence in fluid flows. It exhibits clear duality in characteristics, being both destructive and beneficial in our daily lives and industrial processes. Despite the multitude of occurrences of this phenomenon, highly dynamic and multiphase cavitating flows have not been fundamentally well understood in guiding the effort to harness the transient and localized power generated by this process. In a microscale, multiphase flow liquid injection system, we synergistically combined experiments using time-resolved x-radiography and a novel simulation method to reveal the relationship between the injector geometry and the in-nozzle cavitation quantitatively. We demonstrate that a slight alteration of the geometry on the micrometer scale can induce distinct laminar-like or cavitating flows, validating the multiphase computational fluid dynamics simulation. Furthermore, the simulation identifies a critical geometric parameter with which the high-speed flow undergoes an intriguing transition from non-cavitating to cavitating.
C1 [Im, Kyoung-Su; Cheong, Seong-Kyun; Powell, Christopher F.; Wang, Jin] Argonne Natl Lab, Argonne, IL 60439 USA.
[Im, Kyoung-Su] Livermore Software Technol Corp, Livermore, CA 94551 USA.
[Lai, Ming-chia D.] Wayne State Univ, Detroit, MI 48202 USA.
RP Wang, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM ksim@lstc.com; wangj@aps.anl.gov
FU U.S. Department of Energy (DoE) Vehicle Technology Program; DoE, Office
of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Daegu
Technopark, Korea, Basic R&D Supporting Program for Convergence
Technology
FX We thank J. Schaller for providing the nozzles. Beamline staff at
Sectors 1 and 7 of the Advanced Photon Source is acknowledged for the
technical support. We are also grateful for the sponsorship of U.S.
Department of Energy (DoE) Vehicle Technology Program. This work and the
use of the APS were supported by the DoE, Office of Science, Office of
Basic Energy Sciences, under contract No. DE-AC02-06CH11357. This work
is also partially supported by Daegu Technopark, Korea, as part of Basic
R&D Supporting Program for Convergence Technology.
NR 50
TC 6
Z9 6
U1 0
U2 12
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 25
PY 2013
VL 3
AR 2067
DI 10.1038/srep02067
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 170JW
UT WOS:000320847200003
PM 23797665
ER
PT J
AU Mitchell, C
Qiang, J
Emma, P
AF Mitchell, Chad
Qiang, Ji
Emma, Paul
TI Longitudinal pulse shaping for the suppression of coherent synchrotron
radiation-induced emittance growth
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID ACCELERATORS
AB The damaging effect of coherent synchrotron radiation (CSR) on the emittance and energy spread of high-energy beams in accelerator light sources can significantly constrain the machine design and performance. We propose a mitigation approach in which the dynamical effect of the longitudinal component of CSR is suppressed by appropriately preparing the initial longitudinal current profile of the beam. In a chicane, a linear theory for the mechanism of CSR-induced emittance growth is used to demonstrate how this procedure can produce a beam whose core experiences suppressed transverse emittance growth. The dynamics of such a beam is illustrated for the Berlin-Zeuthen CSR benchmark chicane.
C1 [Mitchell, Chad; Qiang, Ji; Emma, Paul] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Mitchell, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM ChadMitchell@lbl.gov
FU U.S. Department of Energy [DE-FG02-96ER40949]
FX This work was supported by U.S. Department of Energy Grant No.
DE-FG02-96ER40949.
NR 25
TC 13
Z9 13
U1 1
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 25
PY 2013
VL 16
IS 6
AR 060703
DI 10.1103/PhysRevSTAB.16.060703
PG 17
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 171WQ
UT WOS:000320961200001
ER
PT J
AU Hsiao, SC
Liu, H
Holstlaw, TA
Liu, C
Francis, CY
Francis, MB
AF Hsiao, Sonny C.
Liu, Hong
Holstlaw, Taylor A.
Liu, Cheng
Francis, Catherine Y.
Francis, Matthew B.
TI Real Time Assays for Quantifying Cytotoxicity with Single Cell
Resolution
SO PLOS ONE
LA English
DT Article
ID ANTI-CD20 ANTIBODY IDEC-C2B8; CHRONIC LYMPHOCYTIC-LEUKEMIA;
NATURAL-KILLER-CELL; RITUXIMAB; COMPLEMENT; RESISTANCE; LYMPHOMA;
THERAPY; DNA; MECHANISMS
AB A new live cell-based assay platform has been developed for the determination of complement dependent cytotoxicity (CDC), antibody dependent cellular cytotoxicity (ADCC), and overall cytotoxicity in human whole blood. In these assays, the targeted tumor cell populations are first labeled with fluorescent Cell Tracker dyes and immobilized using a DNA-based adhesion technique. This allows the facile generation of live cell arrays that are arranged arbitrarily or in ordered rectilinear patterns. Following the addition of antibodies in combination with serum, PBMCs, or whole blood, cell death within the targeted population can be assessed by the addition of propidium iodide (PI) as a viability probe. The array is then analyzed with an automated microscopic imager. The extent of cytotoxicity can be quantified accurately by comparing the number of surviving target cells to the number of dead cells labeled with both Cell Tracker and PI. Excellent batch-to-batch reproducibility has been achieved using this method. In addition to allowing cytotoxicity analysis to be conducted in real time on a single cell basis, this new assay overcomes the need for hazardous radiochemicals. Fluorescently-labeled antibodies can be used to identify individual cells that bear the targeted receptors, but yet resist the CDC and ADCC mechanisms. This new approach also allows the use of whole blood in cytotoxicity assays, providing an assessment of antibody efficacy in a highly relevant biological mixture. Given the rapid development of new antibody-based therapeutic agents, this convenient assay platform is well-poised to streamline the drug discovery process significantly.
C1 [Hsiao, Sonny C.; Holstlaw, Taylor A.; Francis, Catherine Y.] Adheren Inc, Berkeley, CA USA.
[Liu, Hong; Liu, Cheng] Eureka Therapeut, Emeryville, CA USA.
[Francis, Matthew B.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Francis, Matthew B.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Hsiao, SC (reprint author), Adheren Inc, Berkeley, CA USA.
EM sonny@adheren.com
NR 29
TC 5
Z9 6
U1 2
U2 15
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 24
PY 2013
VL 8
IS 6
AR e66739
DI 10.1371/journal.pone.0066739
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 182JP
UT WOS:000321738400043
PM 23826123
ER
PT J
AU Bender, DA
Cederberg, JG
Wang, CG
Sheik-Bahae, M
AF Bender, Daniel A.
Cederberg, Jeffrey G.
Wang, Chengao
Sheik-Bahae, Mansoor
TI Development of high quantum efficiency GaAs/GaInP double
heterostructures for laser cooling
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; SPONTANEOUS EMISSION; SEMICONDUCTOR;
INGAP/GAAS; PHOTOLUMINESCENCE; RECOMBINATION; INTERFACE;
HETEROINTERFACES; SUPERLATTICES; LUMINESCENCE
AB We report on the growth and characterization of high external quantum efficiency (EQE) GaAs/GaInP double heterostructures. By properly treating the GaAs/GaInP interface, we are able to produce structures measuring a record EQE of 99.5% +/- 0.1% in GaAs. This efficiency exceeds the requirement for achieving laser cooling in GaAs. However, net cooling has not yet been realized due to residual below gap background absorption. (C) 2013 AIP Publishing LLC.
C1 [Bender, Daniel A.; Cederberg, Jeffrey G.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Wang, Chengao; Sheik-Bahae, Mansoor] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
RP Bender, DA (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM dabende@sandia.gov
FU Laboratory Directed Research and Development program at Sandia National
Laboratories; United States Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]; NSF [DMR-1207489]
FX The authors acknowledge the expert assistance of Darrell Alliman in the
preparation of the GaAs/GaInP double heterostructures. This work was
supported by the Laboratory Directed Research and Development program at
Sandia National Laboratories. Sandia is a multiprogram laboratory
operated by Sandia Corporation, a Lockheed Martin Company, for the
United States Department of Energy's National Nuclear Security
Administration under Contract DE-AC04-94AL85000. The work at UNM was
supported by the NSF under Award DMR-1207489.
NR 27
TC 8
Z9 8
U1 3
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 252102
DI 10.1063/1.4811759
PG 4
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200045
ER
PT J
AU Bora, M
Behymer, EM
Dehlinger, DA
Britten, JA
Larson, CC
Chang, ASP
Munechika, K
Nguyen, HT
Bond, TC
AF Bora, Mihail
Behymer, Elaine M.
Dehlinger, Dietrich A.
Britten, Jerald A.
Larson, Cindy C.
Chang, Allan S. P.
Munechika, Keiko
Nguyen, Hoang T.
Bond, Tiziana C.
TI Plasmonic black metals in resonant nanocavities
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID NEAR-FIELD
AB We investigate a plasmonic resonant structure tunable from ultra-violet to near infrared wavelengths with maximum absorbance strength over 95% due to a highly efficient coupling with incident light. Additional harmonics are excited at higher frequencies extending the absorbance range to multiple wavelengths. We propose the concept of a plasmonic black metal nanoresonator that exhibits broadband absorbance characteristics by spacing the modes closer through increasing the resonator length and by employing adiabatic plasmonic nano-focusing on the tapered end of the cavity. (C) 2013 AIP Publishing LLC.
C1 [Bora, Mihail; Behymer, Elaine M.; Dehlinger, Dietrich A.; Britten, Jerald A.; Larson, Cindy C.; Chang, Allan S. P.; Munechika, Keiko; Nguyen, Hoang T.; Bond, Tiziana C.] Lawrence Livermore Natl Lab, Livermore, CA 94501 USA.
RP Bora, M (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94501 USA.
EM bora1@llnl.gov; bond7@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344, LLNLJRNL-425128]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract Nos.
DE-AC52-07NA27344 and LLNLJRNL-425128.
NR 20
TC 11
Z9 11
U1 4
U2 35
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 251105
DI 10.1063/1.4802910
PG 5
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200005
ER
PT J
AU Jiang, CS
Repins, IL
Mansfield, LM
Contreras, MA
Moutinho, HR
Ramanathan, K
Noufi, R
Al-Jassim, MM
AF Jiang, C. -S.
Repins, I. L.
Mansfield, L. M.
Contreras, M. A.
Moutinho, H. R.
Ramanathan, K.
Noufi, R.
Al-Jassim, M. M.
TI Electrical conduction channel along the grain boundaries of
Cu(In,Ga)Se-2 thin films
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SPREADING RESISTANCE MICROSCOPY; SOLAR-CELLS; SILICON
AB We report on a direct nm-resolution resistance mapping on the Cu(In,Ga)Se-2 photovoltaic thin films, using scanning spreading resistance microcopy. We found a conductance channel along the grain boundaries (GBs) of the polycrystalline materials, which is consistent with the argument that carrier polarity of the GB and the space charge region around it is inverted. To minimize the probe/film contact resistance, so that the local spreading resistance beneath the probe is measured, the probe must be adequately indented to the film and a bias voltage larger than the onset value of the probe/film barrier should be applied. (C) 2013 AIP Publishing LLC.
C1 [Jiang, C. -S.; Repins, I. L.; Mansfield, L. M.; Contreras, M. A.; Moutinho, H. R.; Ramanathan, K.; Noufi, R.; Al-Jassim, M. M.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Jiang, CS (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
RI jiang, chun-sheng/F-7839-2012
FU U.S. Department of Energy [DE-AC36-08GO28308]; National Renewable Energy
Laboratory
FX This work was supported by the U.S. Department of Energy under Contract
No. DE-AC36-08GO28308 with the National Renewable Energy Laboratory.
NR 21
TC 10
Z9 10
U1 1
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 253905
DI 10.1063/1.4812827
PG 5
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200102
ER
PT J
AU Luisier, M
Boykin, TB
Ye, Z
Martini, A
Klimeck, G
Kharche, N
Jiang, X
Nayak, S
AF Luisier, M.
Boykin, T. B.
Ye, Z.
Martini, A.
Klimeck, G.
Kharche, N.
Jiang, X.
Nayak, S.
TI Investigation of ripple-limited low-field mobility in large-scale
graphene nanoribbons
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID TRANSISTORS; TRANSPORT; SIO2
AB Combining molecular dynamics and quantum transport simulations, we study the degradation of mobility in graphene nanoribbons caused by substrate-induced ripples. First, the atom coordinates of large-scale structures are relaxed such that surface properties are consistent with those of graphene on a substrate. Then, the electron current and low-field mobility of the resulting non-flat nanoribbons are calculated within the Non-equilibrium Green's Function formalism in the coherent transport limit. An accurate tight-binding basis coupling the sigma- and pi-bands of graphene is used for this purpose. It is found that the presence of ripples decreases the mobility of graphene nanoribbons on SiO2 below 3000 cm(2)/Vs, which is comparable to experimentally reported values. (C) 2013 AIP Publishing LLC.
C1 [Luisier, M.] ETH, Integrated Syst Lab, CH-8092 Zurich, Switzerland.
[Boykin, T. B.] Univ Alabama, Dept ECE, Huntsville, AL 35899 USA.
[Ye, Z.; Martini, A.] Univ Calif Merced, Sch Engn, Merced, CA 95343 USA.
[Klimeck, G.] Purdue Univ, Network Computat Nanotechnol, W Lafayette, IN 47907 USA.
[Kharche, N.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Jiang, X.; Nayak, S.] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA.
[Nayak, S.] Indian Inst Technol Bhubaneswar, Sch Basic Sci, Bhubaneswar 751013, Orissa, India.
RP Luisier, M (reprint author), ETH, Integrated Syst Lab, CH-8092 Zurich, Switzerland.
RI Kharche, Neerav/F-4331-2015; Klimeck, Gerhard/A-1414-2012
OI Kharche, Neerav/0000-0003-1014-6022; Klimeck,
Gerhard/0000-0001-7128-773X
FU SNF [PP00P2_133591]; Swiss National Supercomputing Centre (CSCS) [s363];
NSF [EEC-0228390]; NSF PetaApps [0749140]; NSF through XSEDE; National
Institute for Computational Sciences (NICS)
FX This work was supported by SNF grant (No. PP00P2_133591), by a grant
from the Swiss National Supercomputing Centre (CSCS) under project ID
s363, by NSF grant (No. EEC-0228390) that funds the Network for
Computational Nanotechnology, by NSF PetaApps grant (No. 0749140), and
by NSF through XSEDE resources provided by the National Institute for
Computational Sciences (NICS).
NR 24
TC 1
Z9 1
U1 0
U2 17
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 253506
DI 10.1063/1.4811761
PG 4
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200092
ER
PT J
AU Murray, CE
Graves-Abe, T
Robison, R
Cai, Z
AF Murray, Conal E.
Graves-Abe, T.
Robison, R.
Cai, Z.
TI Submicron mapping of strain distributions induced by three-dimensional
through-silicon via features
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID MECHANICAL-STRESS; RAMAN-SPECTROSCOPY; IMPACT; SI; CU
AB Strain distributions within the active layer of a silicon-on-insulator substrate induced by through-silicon via (TSV) structures were mapped using x-ray microbeam diffraction. The interaction region of the out-of-plane strain, epsilon(33), from a TSV feature containing copper metallization extended approximately 6 mu m from the TSV outer edge for circular and annular geometries. Measurements conducted on identical TSV structures without copper reveal that strain fields generated by the liner materials extend a similar distance and with comparable magnitude as those with copper. FEM-based simulations show the total interaction region induced by the TSV can extend farther than that of epsilon(33). (C) 2013 AIP Publishing LLC.
C1 [Murray, Conal E.] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA.
[Graves-Abe, T.] IBM Corp, Semicond Res & Dev Ctr, Hopewell Jct, NY 12257 USA.
[Robison, R.] IBM Corp, Microelect Div, Essex Jct, VT 05452 USA.
[Cai, Z.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Murray, CE (reprint author), IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA.
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357, DE-AC02-98CH10886]
FX We would like to thank Dr. Jean-Jordan Sweet for assistance with the
stress measurements and Dr. Chandrasekara Kothandaraman for discussions.
This work was performed by the Research Alliance Teams at various IBM
Research and Development facilities. Use of the Advanced Photon Source
was supported by the U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
Use of the National Synchrotron Light Source, Brookhaven National
Laboratory, was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886.
NR 23
TC 12
Z9 12
U1 0
U2 25
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 251910
DI 10.1063/1.4812481
PG 5
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200040
ER
PT J
AU Romanenko, A
Grassellino, A
AF Romanenko, A.
Grassellino, A.
TI Dependence of the microwave surface resistance of superconducting
niobium on the magnitude of the rf field
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID MAGNETIC-FIELD; INDUCED ANISOTROPY; 1.5 GHZ; IMPEDANCE; CAVITIES;
ABSORPTION; TIN; STATES
AB Utilizing difference in temperature dependencies we decoupled Bardeen-Cooper-Schrieffer (BCS) and residual components of the microwave surface resistance of superconducting niobium at all rf fields up to B-rf similar to 115 mT. We reveal that the residual resistance decreases with field at B-rf <= 40mT and strongly increases in chemically treated niobium at B-rf > 80 mT. We find that BCS surface resistance is weakly dependent on field in the clean limit, whereas a strong and peculiar field dependence emerges after 120 degrees C vacuum baking. (C) 2013 AIP Publishing LLC.
C1 [Romanenko, A.; Grassellino, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Romanenko, A (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM aroman@fnal.gov
FU United States Department of Energy; DOE Office of Nuclear Physics;
[De-AC02-07CH11359]
FX The authors would like to acknowledge the help and useful discussions of
A. Crawford, D. Sergatskov, D. Bice, A. Rowe, M. Wong-Squires, J. P.
Ozelis, F. Barkov, A. Melnitchouk, and A. Sukhanov. Fermilab is operated
by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359
with the United States Department of Energy. A. R. was partially
supported by the DOE Office of Nuclear Physics.
NR 48
TC 16
Z9 16
U1 3
U2 14
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 252603
DI 10.1063/1.4812665
PG 4
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200064
ER
PT J
AU Tong, WM
Brodie, AD
Mane, AU
Sun, FG
Kidwingira, F
McCord, MA
Bevis, CF
Elam, JW
AF Tong, William M.
Brodie, Alan D.
Mane, Anil U.
Sun, Fuge
Kidwingira, Francoise
McCord, Mark A.
Bevis, Christopher F.
Elam, Jeffrey W.
TI Nanoclusters of MoO3-x embedded in an Al2O3 matrix engineered for
customizable mesoscale resistivity and high dielectric strength
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID LAYER DEPOSITION TECHNIQUES; GROWTH
AB We have synthesized a material consisting of conducting metal oxide (MoO3-x) nanoclusters embedded in a high-dielectric-strength insulator (Al2O3) matrix. The resistivity of this material can be customized by varying the concentration of the MoO3-x nanoclusters. The Al2O3 protects the MoO3-x from stoichiometry change, thus conserving the number of carriers and maintaining a high dielectric strength. This composite material is grown by atomic layer deposition, a thin film deposition technique suitable for coating 3D structures. We applied these atomic layer deposition composite films to our 3D electron-optical micro electrical mechanical systems devices and greatly improved their performance. (C) 2013 AIP Publishing LLC.
C1 [Tong, William M.; Brodie, Alan D.; Sun, Fuge; Kidwingira, Francoise; McCord, Mark A.; Bevis, Christopher F.] KLA Tencor Corp, REBL Program, Off CTO, Milpitas, CA 95035 USA.
[Mane, Anil U.; Elam, Jeffrey W.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Tong, WM (reprint author), KLA Tencor Corp, REBL Program, Off CTO, 1 Technol Dr, Milpitas, CA 95035 USA.
FU Defense Advanced Research Projects Agency [HR0011-07-9-0007]; U. S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
and Office of High Energy Physics of the Large Area Picosecond
Photodetector (LAPPD) project [DE-AC02-06CH11357]
FX We thank Alec Talin of Sandia National Laboratories for a careful review
of the manuscript. This work was partly sponsored by Defense Advanced
Research Projects Agency under Contract No. HR0011-07-9-0007. The views,
opinions, and/or findings contained in this article/presentation are
those of the author/presenter and should not be interpreted as
representing the official views or policies, either expressed or
implied, of the Defense Advanced Research Projects Agency or the
Department of Defense. The work at Argonne was funded in part by the U.
S. Department of Energy, Office of Science, Office of Basic Energy
Sciences and Office of High Energy Physics under Contract No.
DE-AC02-06CH11357 as part of the Large Area Picosecond Photodetector
(LAPPD) project.
NR 13
TC 8
Z9 8
U1 2
U2 22
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 24
PY 2013
VL 102
IS 25
AR 252901
DI 10.1063/1.4811480
PG 5
WC Physics, Applied
SC Physics
GA 174HG
UT WOS:000321145200065
ER
PT J
AU Chen, JW
Pu, S
Wang, Q
Wang, XN
AF Chen, Jiunn-Wei
Pu, Shi
Wang, Qun
Wang, Xin-Nian
TI Berry Curvature and Four-Dimensional Monopoles in the Relativistic
Chiral Kinetic Equation
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID TRANSPORT-THEORY
AB We derive a relativistic chiral kinetic equation with manifest Lorentz covariance from Wigner functions of spin-1/2 massless fermions in a constant background electromagnetic field. It contains vorticity terms and a four-dimensional Euclidean Berry monopole which gives an axial anomaly. By integrating out the zeroth component of the 4-momentum p, we reproduce the previous three-dimensional results derived from the Hamiltonian approach, together with the newly derived vorticity terms. The phase space continuity equation has an anomalous source term proportional to the product of electric and magnetic fields (F-sigma rho(F) over tilde (sigma rho)similar to E sigma B sigma). This provides a unified interpretation of the chiral magnetic and vortical effects, chiral anomaly, Berry curvature, and the Berry monopole in the framework of Wigner functions.
C1 [Chen, Jiunn-Wei; Pu, Shi] Natl Taiwan Univ, Dept Phys, Natl Ctr Theoret Sci, Taipei 10617, Taiwan.
[Chen, Jiunn-Wei; Pu, Shi] Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan.
[Pu, Shi; Wang, Qun] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Peoples R China.
[Pu, Shi; Wang, Qun] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China.
[Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
[Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Wang, Xin-Nian] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Chen, JW (reprint author), Natl Taiwan Univ, Dept Phys, Natl Ctr Theoret Sci, Taipei 10617, Taiwan.
OI Wang, Xin-Nian/0000-0002-9734-9967; Chen, Jiunn-Wei/0000-0002-8650-9371;
Pu, Shi/0000-0002-6784-7447
FU NSFC [11125524, 1221504, 11205150]; U.S. DOE [DE-AC02-05CH11231]; NSC;
NTU-CTS; NTU-CASTS of R.O.C.
FX This work is supported by the NSFC under Grants No. 11125524, No.
1221504, and No. 11205150 and by the U.S. DOE under Contract No.
DE-AC02-05CH11231 and within the framework of the JET Collaboration.
J.-W.C. and S. P. are supported in part by the NSC, NTU-CTS, and the
NTU-CASTS of R.O.C.
NR 31
TC 63
Z9 63
U1 2
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 24
PY 2013
VL 110
IS 26
AR UNSP 262301
DI 10.1103/PhysRevLett.110.262301
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 171UY
UT WOS:000320956500003
PM 23848865
ER
PT J
AU Ray, D
Reichhardt, CJO
Janko, B
Reichhardt, C
AF Ray, D.
Reichhardt, C. J. Olson
Janko, B.
Reichhardt, C.
TI Strongly Enhanced Pinning of Magnetic Vortices in Type-II
Superconductors by Conformal Crystal Arrays
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID VORTEX PLASTIC-FLOW; HYSTERESIS LOOPS; REGULAR ARRAY; FLUX-DENSITY;
EQUILIBRIUM; DYNAMICS; LATTICES; CURRENTS; DEFECTS; FILMS
AB Conformal crystals are nonuniform structures created by a conformal transformation of regular two-dimensional lattices. We show that gradient-driven vortices interacting with a conformal pinning array exhibit substantially stronger pinning effects over a much larger range of field than found for random or periodic pinning arrangements. The pinning enhancement is partially due to matching of the critical flux gradient with the pinning gradient, but the preservation of local ordering in the conformally transformed hexagonal lattice and the arching arrangement of the pinning also play crucial roles. Our results can be generalized to a wide class of gradient-driven interacting particle systems such as colloids on optical trap arrays.
C1 [Ray, D.; Janko, B.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Ray, D.; Reichhardt, C. J. Olson; Reichhardt, C.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Ray, D (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
OI Reichhardt, Cynthia/0000-0002-3487-5089
FU NNSA of the U.S. DOE at LANL [DE-AC52-06NA25396]
FX This work was carried out under the auspices of the NNSA of the U.S. DOE
at LANL under Contract No. DE-AC52-06NA25396.
NR 51
TC 25
Z9 25
U1 0
U2 39
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 24
PY 2013
VL 110
IS 26
AR UNSP 267001
DI 10.1103/PhysRevLett.10.267001
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 171UY
UT WOS:000320956500012
PM 23848910
ER
PT J
AU Sanloup, C
Bonev, SA
Hochlaf, M
Maynard-Casely, HE
AF Sanloup, Chrystele
Bonev, Stanimir A.
Hochlaf, Majdi
Maynard-Casely, Helen E.
TI Reactivity of Xenon with Ice at Planetary Conditions
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID GIANT PLANETS; NOBLE; VOLATILES; MOLECULES
AB We report results from high pressure and temperature experiments that provide evidence for the reactivity of xenon with water ice at pressures above 50 GPa and a temperature of 1500 K-conditions that are found in the interiors of Uranus and Neptune. The x-ray data are sufficient to determine a hexagonal lattice with four Xe atoms per unit cell and several possible distributions of O atoms. The measurements are supplemented with ab initio calculations, on the basis of which a crystallographic structure with a Xe4O12H12 primitive cell is proposed. The newly discovered compound is formed in the stability fields of superionic ice and eta-O-2, and has the same oxygen subnetwork as the latter. Furthermore, it has a weakly metallic character and likely undergoes sublattice melting of the H subsystem. Our findings indicate that Xe is expected to be depleted in the atmospheres of the giant planets as a result of sequestration at depth.
C1 [Sanloup, Chrystele] Univ Paris 06, CNRS, ISTEP, UMR 7193, F-75005 Paris, France.
[Bonev, Stanimir A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bonev, Stanimir A.] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada.
[Hochlaf, Majdi] Univ Paris Est, MSME, CNRS, Lab Modelisat & Simulat MultiEchelle,UMR 8208, F-77454 Marne La Vallee, France.
[Maynard-Casely, Helen E.] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JZ, Midlothian, Scotland.
RP Sanloup, C (reprint author), Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
RI Sanloup, Chrystele/D-9923-2015;
OI Sanloup, Chrystele/0000-0003-2412-6073; Maynard-Casely,
Helen/0000-0001-6364-9665
FU European Research Council under the European Community's Seventh
Framework Programme [259649]; U.S. Department of Energy
[DE-AC52-07NA27344]
FX We acknowledge the ESRF for provision of beam time on ID27 and LLNL for
computational resources. We thank M. Mezouar and E. Gregoryanz for their
help with collecting in situ x-ray diffraction data, and Y. Noel and M.
Marques for useful discussions. C. S. is funded by the European Research
Council under the European Community's Seventh Framework Programme
(Grants No. FP7/2007-2013 and No. 259649). S. A. B. performed work at
LLNL under the auspices of the U.S. Department of Energy under Grant No.
DE-AC52-07NA27344.
NR 33
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U1 1
U2 36
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 24
PY 2013
VL 110
IS 26
AR UNSP 265501
DI 10.1103/PhysRevLett.110.265501
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 171UY
UT WOS:000320956500007
PM 23848893
ER
PT J
AU Flynn, TM
Sanford, RA
Ryu, H
Bethke, CM
Levine, AD
Ashbolt, NJ
Domingo, JWS
AF Flynn, Theodore M.
Sanford, Robert A.
Ryu, Hodon
Bethke, Craig M.
Levine, Audrey D.
Ashbolt, Nicholas J.
Domingo, Jorge W. Santo
TI Functional microbial diversity explains groundwater chemistry in a
pristine aquifer
SO BMC MICROBIOLOGY
LA English
DT Article
ID ANAEROBIC METHANE OXIDATION; SULFATE REDUCTION; MULTIVARIATE ANALYSES;
REDUCING BACTERIA; CRETACEOUS ROCK; BEDROCK VALLEY; SUBSURFACE;
SEDIMENTS; SEQUENCE; SYSTEMS
AB Background: The diverse microbial populations that inhabit pristine aquifers are known to catalyze critical in situ biogeochemical reactions, yet little is known about how the structure and diversity of this subsurface community correlates with and impacts upon groundwater chemistry. Herein we examine 8,786 bacterial and 8,166 archaeal 16S rRNA gene sequences from an array of monitoring wells in the Mahomet aquifer of east-central Illinois. Using multivariate statistical analyses we provide a comparative analysis of the relationship between groundwater chemistry and the microbial communities attached to aquifer sediment along with those suspended in groundwater.
Results: Statistical analyses of 16S rRNA gene sequences showed a clear distinction between attached and suspended communities; with iron-reducing bacteria far more abundant in attached samples than suspended, while archaeal clones related to groups associated with anaerobic methane oxidation and deep subsurface gold mines (ANME-2D and SAGMEG-1, respectively) distinguished the suspended community from the attached. Within the attached bacterial community, cloned sequences most closely related to the sulfate-reducing Desulfobacter and Desulfobulbus genera represented 20% of the bacterial community in wells where the concentration of sulfate in groundwater was high (> 0.2 mM), compared to only 3% in wells with less sulfate. Sequences related to the genus Geobacter, a genus containing ferric-iron reducers, were of nearly equal abundance (15%) to the sulfate reducers under high sulfate conditions, however their relative abundance increased to 34% when sulfate concentrations were < 0.03 mM. Also, in areas where sulfate concentrations were < 0.03 mM, archaeal 16S rRNA gene sequences similar to those found in methanogens such as Methanosarcina and Methanosaeta comprised 73-80% of the community, and dissolved CH4 ranged between 220 and 1240 mu M in these groundwaters. In contrast, methanogens (and their product, CH4) were nearly absent in samples collected from groundwater samples with > 0.2 mM sulfate. In the suspended fraction of wells where the concentration of sulfate was between 0.03 and 0.2 mM, the archaeal community was dominated by sequences most closely related to the ANME-2D, a group of archaea known for anaerobically oxidizing methane. Based on available energy (Delta G(A)) estimations, results varied little for both sulfate reduction and methanogenesis throughout all wells studied, but could favor anaerobic oxidation of methane (AOM) in wells containing minimal sulfate and dihydrogen, suggesting AOM coupled with H-2-oxidizing organisms such as sulfate or iron reducers could be an important pathway occurring in the Mahomet aquifer.
Conclusions: Overall, the results show several distinct factors control the composition of microbial communities in the Mahomet aquifer. Bacteria that respire insoluble substrates such as iron oxides, i.e. Geobacter, comprise a greater abundance of the attached community than the suspended regardless of groundwater chemistry. Differences in community structure driven by the concentration of sulfate point to a clear link between the availability of substrate and the abundance of certain functional groups, particularly iron reducers, sulfate reducers, methanogens, and methanotrophs. Integrating both geochemical and microbiological observations suggest that the relationships between these functional groups could be driven in part by mutualism, especially between ferric-iron and sulfate reducers.
C1 [Flynn, Theodore M.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Flynn, Theodore M.; Sanford, Robert A.; Bethke, Craig M.] Univ Illinois, Dept Geol, Urbana, IL 60616 USA.
[Ryu, Hodon; Levine, Audrey D.; Ashbolt, Nicholas J.; Domingo, Jorge W. Santo] US EPA, Off Res & Dev, Cincinnati, OH 45248 USA.
[Levine, Audrey D.] Battelle Mem Inst, Washington, DC 20024 USA.
RP Domingo, JWS (reprint author), US EPA, Off Res & Dev, Cincinnati, OH 45248 USA.
EM santodomingo.jorge@epa.gov
RI Flynn, Theodore/C-1221-2008; Ryu, Hodon/E-4610-2011
OI Flynn, Theodore/0000-0002-1838-8942; Ryu, Hodon/0000-0002-6992-2519
FU U.S. Environmental Protection Agency, through its Office of Research and
Development; RARE program; National Research Council; Department of
Energy [DE-FG02-02ER15317]; Argonne National Laboratory; SBR SFA at
Argonne National Laboratory by the Subsurface Biogeochemical Research
Program, Office of Biological and Environmental Research, Office of
Science, U.S. Department of Energy (DOE) [DE-AC02-06CH11357]
FX The U.S. Environmental Protection Agency, through its Office of Research
and Development and the RARE program, funded, managed, and collaborated
in the research described herein. This work has been subjected to the
agency's administrative review and has been approved for external
publication. Any opinions expressed in this paper are those of the
authors and do not necessarily reflect the views of the agency;
therefore, no official endorsement should be inferred. Any mention of
trade names or commercial products does not constitute endorsement or
recommendation for use. The authors thank B. Iker, M. Kyrias, D.
Strattan, B. Farrell, E. Luber, M. Nolan, C. Salvatori, J. Shelton, and
P. Bermudez for their assistance in the laboratory and the field. H. Ryu
received funding through a fellowship from the National Research
Council. This work was also supported in part through funding from the
Department of Energy grant DE-FG02-02ER15317, a Director's Postdoctoral
Fellowship from Argonne National Laboratory to T. Flynn, and the SBR SFA
at Argonne National Laboratory which is supported by the Subsurface
Biogeochemical Research Program, Office of Biological and Environmental
Research, Office of Science, U.S. Department of Energy (DOE), under
contract DE-AC02-06CH11357.
NR 61
TC 30
Z9 30
U1 5
U2 91
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2180
J9 BMC MICROBIOL
JI BMC Microbiol.
PD JUN 24
PY 2013
VL 13
AR 146
DI 10.1186/1471-2180-13-146
PG 15
WC Microbiology
SC Microbiology
GA 176AI
UT WOS:000321274700001
PM 23800252
ER
PT J
AU Somma, RD
Hughes, RJ
AF Somma, Rolando D.
Hughes, Richard J.
TI Security of decoy-state protocols for general photon-number-splitting
attacks
SO PHYSICAL REVIEW A
LA English
DT Article
ID QUANTUM KEY DISTRIBUTION
AB Decoy-state protocols provide a way to defeat photon-number-splitting attacks in quantum cryptography implemented with weak coherent pulses. We point out that previous security analyses of such protocols relied on assumptions about eavesdropping attacks that considered treating each pulse equally and independently. We give an example to demonstrate that, without such assumptions, the security parameters of previous decoy-state implementations could be worse than the ones claimed. Next we consider more general photon-number-splitting attacks, which correlate different pulses, and give an estimation procedure for the number of single-photon signals with rigorous security statements. The impact of our result is that previous analyses of the number of times a decoy-state quantum cryptographic system can be reused before it makes a weak key must be revised.
C1 [Somma, Rolando D.; Hughes, Richard J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Somma, RD (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM somma@lanl.gov; rxh@lanl.gov
FU Laboratory Directed Research and Development (LDRD) Program at Los
Alamos National Laboratory
FX We thank Jane Nordholt, KevinMcCabe, Raymond Newell, Charles Peterson,
and Stephanie Wehner for discussions. We thank the Laboratory Directed
Research and Development (LDRD) Program at Los Alamos National
Laboratory for support.
NR 18
TC 5
Z9 6
U1 0
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 24
PY 2013
VL 87
IS 6
AR 062330
DI 10.1103/PhysRevA.87.062330
PG 7
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 171RM
UT WOS:000320946800007
ER
PT J
AU Black-Schaffer, AM
Balatsky, AV
AF Black-Schaffer, Annica M.
Balatsky, Alexander V.
TI Proximity-induced unconventional superconductivity in topological
insulators
SO PHYSICAL REVIEW B
LA English
DT Article
ID SURFACE; TRANSPORT; BI2SE3; BI2TE3
AB We study and classify the proximity-induced superconducting pairing in a topological insulator (TI)-superconductor (SC) hybrid structure for SCs with different symmetries. The Dirac surface state gives a coupling between spin-singlet and spin-triplet pairing amplitudes as well as pairing that is odd in frequency for p-wave SCs. We also find that all SCs induce pairing that is odd in both frequency and orbital (band) index, with oddness in frequency and orbital index being completely interchangeable. The different induced pairing amplitudes significantly modify the density of states in the TI surface layer.
C1 [Black-Schaffer, Annica M.] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden.
[Balatsky, Alexander V.] Nord Inst Theoret Phys NORDITA, S-10691 Stockholm, Sweden.
[Balatsky, Alexander V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Balatsky, Alexander V.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Black-Schaffer, AM (reprint author), Uppsala Univ, Dept Phys & Astron, POB 516, S-75120 Uppsala, Sweden.
FU Swedish and European research councils (VR, ERC); US DoE Basic Energy
Sciences; Center for Integrated Nanotechnologies; US Department of
Energy [DE-AC52-06NA25396]
FX We are grateful to E. Abrahams for discussions and the Swedish and
European research councils (VR, ERC) for funding. Work at Los Alamos was
supported by US DoE Basic Energy Sciences and in part by the Center for
Integrated Nanotechnologies, operated by LANS, LLC, for the National
Nuclear Security Administration of the US Department of Energy under
contract DE-AC52-06NA25396.
NR 35
TC 36
Z9 36
U1 2
U2 29
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 22
AR 220506
DI 10.1103/PhysRevB.87.220506
PG 5
WC Physics, Condensed Matter
SC Physics
GA 171SF
UT WOS:000320948700002
ER
PT J
AU Erwin, SC
Snijders, PC
AF Erwin, Steven C.
Snijders, Paul C.
TI Silicon spin chains at finite temperature: Dynamics of Si(553)-Au
SO PHYSICAL REVIEW B
LA English
DT Article
ID AUGMENTED-WAVE METHOD; AB-INITIO; ONE-DIMENSION; WIRES; RECONSTRUCTION;
MODELS
AB When gold is deposited on Si(553), the surface self-assembles to form a periodic array of steps with nearly perfect structural order. In scanning tunneling microscopy these steps resemble quasi-one-dimensional atomic chains. At temperatures below similar to 50 K the chains develop a tripled periodicity. We recently predicted, on the basis of density-functional theory calculations at T = 0, that this tripled periodicity arises from the complete polarization of the electron spin on every third silicon atom along the step; in the ground state these linear chains of silicon spins are antiferromagnetically ordered. Here we explore, using ab initio molecular dynamics and kinetic Monte Carlo simulations, the behavior of silicon spin chains on Si(553)-Au at finite temperature. Thermodynamic phase transitions at T > 0 in one-dimensional systems are prohibited by the Mermin-Wagner theorem. Nevertheless we find that a surprisingly sharp onset occurs upon cooling-at about 30 K for perfect surfaces and at higher temperature for surfaces with defects-to a well-ordered phase with tripled periodicity, in good agreement with experiment.
C1 [Erwin, Steven C.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Snijders, Paul C.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Erwin, SC (reprint author), Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM steve.erwin@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory's Basic
Research Program; Department of Energy, Basic Energy Sciences, Materials
Sciences and Engineering Division
FX Many discussions with F. J. Himpsel are gratefully acknowledged. This
work was supported by the Office of Naval Research through the Naval
Research Laboratory's Basic Research Program (SCE) and by the Department
of Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division (PCS). Computations were performed at the DoD Major Shared
Resource Centers at AFRL and ERDC.
NR 35
TC 6
Z9 6
U1 0
U2 31
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 23
AR UNSP 235316
DI 10.1103/PhysRevB.87.235316
PG 8
WC Physics, Condensed Matter
SC Physics
GA 171SO
UT WOS:000320949600009
ER
PT J
AU Huang, C
Voter, AF
Perez, D
AF Huang, Chen
Voter, Arthur F.
Perez, Danny
TI Scalable kernel polynomial method for calculating transition rates
SO PHYSICAL REVIEW B
LA English
DT Article
ID CHEMICAL-REACTIONS; DENSITIES; MOMENTS; STATES
AB We present an efficient method for calculating the prefactors of harmonic transition state theory rates. We reformulate the prefactors in terms of the density of states (DOS) of the Hessian matrices at the basin minimum and the saddle point. The DOS is then approximated using the kernel polynomial method as an expansion in terms of Chebyshev polynomials. The cost of the calculation scales linearly with the number of atoms, in contrast with the cubic scaling of the direct method. This approach hence greatly facilitates the investigations of kinetic processes in very large systems. We demonstrate the method by calculating the prefactors of the transition rates for two processes in bulk silver: vacancy hopping and Frenkel pair formation.
C1 [Huang, Chen; Voter, Arthur F.; Perez, Danny] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Huang, C (reprint author), Los Alamos Natl Lab, Div Theoret, T-1, Los Alamos, NM 87545 USA.
EM afv@lanl.gov; danny_perez@lanl.gov
RI Huang, Chen/C-4598-2013;
OI Voter, Arthur/0000-0001-9788-7194
FU United States Department of Energy (US DOE) Office of Science; Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering;
Office of Advanced Scientific Computing Research; US DOE
[DE-AC52-06NA25396]
FX This work was supported by the United States Department of Energy (US
DOE) Office of Science. Initial development of this method and final
stages of the work were supported by the Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering. The middle
stage was supported by the Office of Advanced Scientific Computing
Research. Los Alamos National Laboratory is operated by Los Alamos
National Security, LLC, for the National Nuclear Security administration
of the US DOE under Contract No. DE-AC52-06NA25396.
NR 37
TC 0
Z9 0
U1 0
U2 20
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 21
AR 214106
DI 10.1103/PhysRevB.87.214106
PG 8
WC Physics, Condensed Matter
SC Physics
GA 171RW
UT WOS:000320947800001
ER
PT J
AU Julien, MH
Simonet, V
Canals, B
Ballou, R
Hassan, AK
Affronte, M
Garlea, VO
Darie, C
Bordet, P
AF Julien, M. -H.
Simonet, V.
Canals, B.
Ballou, R.
Hassan, A. K.
Affronte, M.
Garlea, V. O.
Darie, C.
Bordet, P.
TI Inhomogeneous magnetism in the doped kagome lattice of LaCuO2.66
SO PHYSICAL REVIEW B
LA English
DT Article
ID FRUSTRATED MAGNETS; POWDER DIFFRACTION; CU2+ CATIONS; DELAFOSSITES;
DILUTION; ANTIFERROMAGNET; OXIDES; PLANES; ORDER; NMR
AB The hole-doped kagome lattice of Cu2+ ions in LaCuO2.66 was investigated by nuclear quadrupole resonance, electron spin resonance, electrical resistivity, bulk magnetization, and specific-heat measurements. For temperatures above similar to 180 K, the spin and charge properties show an activated behavior suggestive of a narrow-gap semiconductor. At lower temperatures, the results indicate an insulating ground state which may or may not be charge ordered. While the frustrated spins in remaining patches of the original kagome lattice might not be directly detected here, the observation of coexisting nonmagnetic sites, free spins, and frozen moments reveals an intrinsically inhomogeneous magnetism. Numerical simulations of a 1/3-diluted kagome lattice rationalize this magnetic state in terms of a heterogeneous distribution of cluster sizes and morphologies near the site-percolation threshold.
C1 [Julien, M. -H.; Hassan, A. K.] CNRS UJF UPS INSA, Lab Natl Champs Magnet Intenses, F-38042 Grenoble 9, France.
[Simonet, V.; Canals, B.; Ballou, R.; Garlea, V. O.; Darie, C.; Bordet, P.] CNRS, Inst Neel, F-38042 Grenoble 9, France.
[Simonet, V.; Canals, B.; Ballou, R.; Garlea, V. O.; Darie, C.; Bordet, P.] Univ Grenoble 1, F-38042 Grenoble 9, France.
[Affronte, M.] Univ Modena & Reggio Emilia, CNR, NANO S3, I-41125 Modena, Italy.
[Affronte, M.] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41125 Modena, Italy.
[Garlea, V. O.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Julien, MH (reprint author), CNRS UJF UPS INSA, Lab Natl Champs Magnet Intenses, F-38042 Grenoble 9, France.
EM marc-henri.julien@lncmi.cnrs.fr; virginie.simonet@grenoble.cnrs.fr
RI Garlea, Vasile/A-4994-2016; Julien, Marc-Henri/A-2352-2010; Affronte,
Marco/P-2504-2016
OI Garlea, Vasile/0000-0002-5322-7271; Affronte, Marco/0000-0001-5711-7822
FU Scientific User Facilities Division, Office of Basic Energy Sciences, US
Department of Energy
FX We are grateful to F. Bert, C. Berthier, C. Lacroix, H. Mayaffre, P.
Mendels, and D. Nunez-Regueiro for enlightening discussions and to Y.
Berthier for assistance in the NQR experiments. We also thank T. Grenet,
J. Delahaye, and F. Gay for help and advice concerning the resistivity
measurements. V.O.G. acknowledges the support by the Scientific User
Facilities Division, Office of Basic Energy Sciences, US Department of
Energy.
NR 61
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U1 5
U2 30
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9950
EI 2469-9969
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 24
PY 2013
VL 87
IS 21
AR 214423
DI 10.1103/PhysRevB.87.214423
PG 9
WC Physics, Condensed Matter
SC Physics
GA 171RW
UT WOS:000320947800004
ER
PT J
AU Holt, JD
Engel, J
AF Holt, Jason D.
Engel, Jonathan
TI Effective double-beta-decay operator for Ge-76 and Se-82
SO PHYSICAL REVIEW C
LA English
DT Article
ID MATRIX-ELEMENTS; NUCLEI; FORCES
AB We use diagrammatic many-body perturbation theory in combination with low-momentum interactions derived from chiral effective field theory to construct effective shell-model transition operators for the neutrinoless double-beta decay of Ge-76 and Se-82. We include all unfolded diagrams that are first and second order in the interaction and all singly folded diagrams that can be constructed from them. The resulting effective operator, which accounts for physics outside the shell-model space, increases the nuclear matrix element by about 20% in Ge-76 and 30% in Se-82.
C1 [Holt, Jason D.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
[Holt, Jason D.] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany.
[Holt, Jason D.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Holt, Jason D.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Engel, Jonathan] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27516 USA.
RP Holt, JD (reprint author), Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
EM jason.holt@physik.tu-darmstadt.de; engelj@physics.unc.edu
OI Holt, Jason/0000-0003-4833-7959
FU BMBF [06DA70471]; Helmholtz Association through the Helmholtz Alliance
Program [HA216/EMMI]; U.S. DOE [DE-FC02-07ER41457, DE-FG02-96ER40963];
U.S. Department of Energy [DE-FG02-97ER41019]
FX We thank M. Hjorth-Jensen, M. Horoi, J. Menendez, and A. Poves for
helpful discussions, and Drs. Horoi and Poves for providing us with
their shell-model densities. This work was supported by the BMBF under
Contract No. 06DA70471, the Helmholtz Association through the Helmholtz
Alliance Program, Contract No. HA216/EMMI "Extremes of Density and
Temperature: Cosmic Matter in the Laboratory," and the U.S. DOE Grants
No. DE-FC02-07ER41457 (UNEDF SciDAC Collaboration) and No.
DE-FG02-96ER40963. J.E. gratefully acknowledges in addition the support
of the U.S. Department of Energy through Contract No. DE-FG02-97ER41019.
NR 36
TC 21
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U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 24
PY 2013
VL 87
IS 6
AR 064315
DI 10.1103/PhysRevC.87.064315
PG 7
WC Physics, Nuclear
SC Physics
GA 171TE
UT WOS:000320951200001
ER
PT J
AU Detmold, W
Orginos, K
AF Detmold, William
Orginos, Kostas
TI Nuclear correlation functions in lattice QCD
SO PHYSICAL REVIEW D
LA English
DT Article
AB We consider the problem of calculating the large number of Wick contractions necessary to compute states with the quantum numbers of many baryons in lattice QCD. We consider a constructive approach and a determinant-based approach and show that these methods allow the required contractions to be performed in a computationally manageable amount of time for certain choices of interpolating operators. Examples of correlation functions computed using these techniques are shown for the quantum numbers of the light nuclei, He-4, Be-8, C-12, O-16, and Si-28.
C1 [Detmold, William] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
[Orginos, Kostas] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
[Orginos, Kostas] Jefferson Lab, Newport News, VA 23606 USA.
RP Detmold, W (reprint author), MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
OI Detmold, William/0000-0002-0400-8363
FU National Energy Research Scientific Computing Center (NERSC, Office of
Science of the US DOE) [DE-AC02-05CH11231]; DOE [DE-AC05-06OR23177,
DE-FG02-04ER41302]; DOE OJI [DE-SC0001784]; Jeffress Memorial Trust
[J-968]
FX We thank M. G. Endres, D. B. Kaplan, M. J. Savage, and the members of
the NPLQCD Collaboration for insightful discussions on the topic of this
work. We also thank R. Edwards and B. Joo for help with QDP ++ and
Chroma software suites [24], which are the software bases of all
computations presented here. We acknowledge computational support from
the National Energy Research Scientific Computing Center (NERSC, Office
of Science of the US DOE, Grant No. DE-AC02-05CH11231), and the NSF
through XSEDE resources provided by NICS. This work was supported in
part by DOE Grants No. DE-AC05-06OR23177 (J. S. A.) and No.
DE-FG02-04ER41302. W. D. was also supported by DOE OJI Grant No.
DE-SC0001784 and Jeffress Memorial Trust, Grant No. J-968.
NR 28
TC 17
Z9 17
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 24
PY 2013
VL 87
IS 11
AR 114512
DI 10.1103/PhysRevD.87.114512
PG 9
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 171TH
UT WOS:000320951500003
ER
PT J
AU Akdogan, EK
Savkliyildiz, I
Bicer, H
Paxton, W
Toksoy, F
Zhong, Z
Tsakalakos, T
AF Akdogan, E. K.
Savkliyildiz, I.
Bicer, H.
Paxton, W.
Toksoy, F.
Zhong, Z.
Tsakalakos, T.
TI Anomalous lattice expansion in yttria stabilized zirconia under
simultaneous applied electric and thermal fields: A time-resolved in
situ energy dispersive x-ray diffractometry study with an ultrahigh
energy synchrotron probe
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SINTERING CRYSTALLINE SOLIDS; GRAIN-GROWTH; NANOGRAIN ZIRCONIA;
DIFFUSION; FERROELECTRICS; CONDUCTIVITY; DIMENSIONS; SIMULATION;
KINETICS; STRESSES
AB Nonisothermal densification in 8% yttria doped zirconia (8YSZ) particulate matter of 250 nm median particle size was studied under 215 V/cm dc electric field and 9 degrees C/min heating rate, using time-resolved in-situ high temperature energy dispersive x-ray diffractometry with a polychromatic 200 keV synchrotron probe. Densification occurred in the 876-905 degrees C range, which resulted in 97% of the theoretical density. No local melting at particle-particle contacts was observed in scanning electron micrographs, implying densification was due to solid state mass transport processes. The maximum current draw at 905 degrees C was 3 A, corresponding to instantaneous absorbed power density of 570 W/cm(3). Densification of 8YSZ was accompanied by anomalous elastic volume expansions of the unit cell by 0.45% and 2.80% at 847 degrees C and 905 degrees C, respectively. The anomalous expansion at 905 degrees C at which maximum densification was observed is characterized by three stages: (I) linear stage, (II) anomalous stage, and (III) anelastic recovery stage. The densification in stage I (184 s) and II (15 s) was completed in 199 s, while anelastic relaxation in stage III lasted 130 s. The residual strains (epsilon) at room temperature, as computed from tetragonal (112) and (211) reflections, are epsilon((112)) = 0.05% and epsilon((211)) = 0.13%, respectively. Time dependence of (211) and (112) peak widths (beta) show a decrease with both exhibiting a singularity at 905 degrees C. An anisotropy in (112) and (211) peak widths of {beta((112))/beta((211))} = (3:1) magnitude was observed. No phase transformation occurred at 905 degrees C as verified from diffraction spectra on both sides of the singularity, i.e., the unit cell symmetry remains tetragonal. We attribute the reduction in densification temperature and time to ultrafast ambipolar diffusion of species arising from the superposition of mass fluxes due to Fickian diffusion, thermodiffusion (Soret effect), and electromigration, which in turn are a consequence of a superposition of chemical, temperature, and electrical potential gradients. On the other hand, we propose defect pile-up at particle-particle contacts and subsequent tunneling as a mechanism creating the "burst-mode" discontinuous densification at the singularities observed at 847 and 905 degrees C. (C) 2013 AIP Publishing LLC.
C1 [Akdogan, E. K.; Savkliyildiz, I.; Bicer, H.; Paxton, W.; Toksoy, F.; Tsakalakos, T.] Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08854 USA.
[Zhong, Z.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
RP Akdogan, EK (reprint author), Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08854 USA.
EM eka@rci.rutgers.edu
OI Paxton, William/0000-0001-5899-9038
FU Office of Naval Research (ONR) [N00014-10-1-042]; U.S. Department of
Energy, Division of Material Sciences and Division of Chemical Sciences
[DE-AC02-76CH00016]
FX The authors wish to express their gratitude for the financial support
provided by the Office of Naval Research (ONR) under Contract No.
N00014-10-1-042. The authors wish to thank Dr. L. Kabacoff of the ONR
for his valuable technical feedback and support of this project. This
research was carried out in part at the NSLS, which is supported by the
U.S. Department of Energy, Division of Material Sciences and Division of
Chemical Sciences, under Contract No. DE-AC02-76CH00016.
NR 61
TC 5
Z9 5
U1 2
U2 32
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 21
PY 2013
VL 113
IS 23
AR 233503
DI 10.1063/1.4811362
PG 9
WC Physics, Applied
SC Physics
GA 172NT
UT WOS:000321011700013
ER
PT J
AU Guo, HW
Sun, DL
Wang, WB
Gai, Z
Kravchenko, I
Shao, J
Jiang, L
Ward, TZ
Snijders, PC
Yin, LF
Shen, J
Xu, XS
AF Guo, Hangwen
Sun, Dali
Wang, Wenbin
Gai, Zheng
Kravchenko, Ivan
Shao, Jian
Jiang, Lu
Ward, Thomas Z.
Snijders, Paul C.
Yin, Lifeng
Shen, Jian
Xu, Xiaoshan
TI Growth diagram of La0.7Sr0.3MnO3 thin films using pulsed laser
deposition
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID LOW-FIELD MAGNETORESISTANCE; ABLATION; TEMPERATURE; MORPHOLOGY
AB An experimental study was conducted on controlling the growth mode of La0.7Sr0.3MnO3 thin films on SrTiO3 substrates using pulsed laser deposition (PLD) by tuning growth temperature, pressure, and laser fluence. Different thin film morphology, crystallinity, and stoichiometry have been observed depending on growth parameters. To understand the microscopic origin, the adatom nucleation, step advance processes, and their relationship to film growth were theoretically analyzed and a growth diagram was constructed. Three boundaries between highly and poorly crystallized growth, 2D and 3D growth, stoichiometric and non-stoichiometric growth were identified in the growth diagram. A good fit of our experimental observation with the growth diagram was found. This case study demonstrates that a more comprehensive understanding of the growth mode in PLD is possible. (C) 2013 AIP Publishing LLC.
C1 [Guo, Hangwen; Wang, Wenbin; Jiang, Lu; Shen, Jian] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Guo, Hangwen; Sun, Dali; Wang, Wenbin; Gai, Zheng; Jiang, Lu; Ward, Thomas Z.; Snijders, Paul C.; Xu, Xiaoshan] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Sun, Dali] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.
[Gai, Zheng; Kravchenko, Ivan] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Shao, Jian; Yin, Lifeng; Shen, Jian] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.
[Shao, Jian; Yin, Lifeng; Shen, Jian] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China.
RP Shen, J (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
EM shenj5494@fudan.edu.cn; xiaoshan.xu@gatech.edu
RI Gai, Zheng/B-5327-2012; Xu, Xiaoshan/B-1255-2009; Kravchenko,
Ivan/K-3022-2015; Ward, Thomas/I-6636-2016
OI Gai, Zheng/0000-0002-6099-4559; Xu, Xiaoshan/0000-0002-4363-392X;
Kravchenko, Ivan/0000-0003-4999-5822; Ward, Thomas/0000-0002-1027-9186
FU US Department of Energy, Basic Energy Sciences, Materials Sciences, and
Engineering Division; Office of Basic Energy Sciences, US Department of
Energy; National Basic Research Program of China (973 Program)
[2011CB921801]; US DOE Office of Basic Energy Sciences, the US DOE
[DE-SC0002136]
FX Research supported by the US Department of Energy, Basic Energy
Sciences, Materials Sciences, and Engineering Division (P. C. S.,
T.Z.W., X. S. X.) and performed in part at the Center for Nanophase
Materials Sciences (CNMS) (Z.G., I. K.) User Facility, which are
sponsored at Oak Ridge National Laboratory by the Office of Basic Energy
Sciences, US Department of Energy. We also acknowledge partial funding
supports from the National Basic Research Program of China (973 Program)
under Grant No. 2011CB921801 (J.S.), and the US DOE Office of Basic
Energy Sciences, the US DOE Grant No. DE-SC0002136 (H.W.G., W.B.W.).
NR 36
TC 3
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U1 3
U2 45
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 21
PY 2013
VL 113
IS 23
AR 234301
DI 10.1063/1.4811187
PG 8
WC Physics, Applied
SC Physics
GA 172NT
UT WOS:000321011700049
ER
PT J
AU Levesque, G
Vitello, P
Howard, WM
AF Levesque, G.
Vitello, P.
Howard, W. M.
TI Hot-spot contributions in shocked high explosives from mesoscale
ignition models
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID INITIATION; COLLAPSE
AB High explosive performance and sensitivity is strongly related to the mesoscale defect densities. Bracketing the population of mesoscale hot spots that are active in the shocked ignition of explosives is important for the development of predictive reactive flow models. By coupling a multiphysics-capable hydrodynamics code (ALE3D) with a chemical kinetics solver (CHEETAH), we can parametrically analyze different pore sizes undergoing collapse in high pressure shock conditions with evolving physical parameter fields. Implementing first-principles based decomposition kinetics, burning hot spots are monitored, and the regimes of pore sizes that contribute significantly to burnt mass faction and those that survive thermal conduction on the time scales of ignition are elucidated. Comparisons are drawn between the thermal explosion theory and the multiphysics models for the determination of nominal pore sizes that burn significantly during ignition for the explosive 1,3,5-triamino-2,4,6-trinitrobenzene. (C) 2013 AIP Publishing LLC.
C1 [Levesque, G.; Vitello, P.; Howard, W. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Levesque, G (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM Levesque6@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX Larry E. Fried, Riad Manaa, Fady Najjar, Jack Reaugh, Craig M. Tarver,
and Albert L. Nichols III of Lawrence Livermore National Laboratory are
all thanked for their thoughtful contributions. This work performed
under the auspices of the U.S. Department of Energy by Lawrence
Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 41
TC 8
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U1 4
U2 29
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 21
PY 2013
VL 113
IS 23
AR 233513
DI 10.1063/1.4811233
PG 9
WC Physics, Applied
SC Physics
GA 172NT
UT WOS:000321011700023
ER
PT J
AU Teixeira, FS
Salvadori, MC
Araujo, WWR
Amorim, HJM
Cattani, M
Brown, IG
AF Teixeira, F. S.
Salvadori, M. C.
Araujo, W. W. R.
Amorim, H. J. M.
Cattani, M.
Brown, I. G.
TI Isotropic and anisotropic wrinkling of diamond-like carbon films on
polydimethylsiloxane substrates
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID THIN-FILMS; POLYMER
AB We describe experimental results about the spontaneous wrinkling of diamond-like carbon films over the thickness range 2 nm-58 nm, grown on polydimethylsiloxane (PDMS) substrates with a 5 nm gold film deposited as adhesion layer. Using Atomic Force Microscopy data with suitable processing, we explore both isotropic and anisotropic wrinkling, the latter done by creating trench structures on PDMS substrates. We show new non-predictable results based on the known literature. (C) 2013 AIP Publishing LLC.
C1 [Teixeira, F. S.; Salvadori, M. C.; Araujo, W. W. R.; Amorim, H. J. M.; Cattani, M.] Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo, Brazil.
[Brown, I. G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Teixeira, FS (reprint author), Univ Sao Paulo, Inst Phys, CP 66318, BR-05315970 Sao Paulo, Brazil.
EM nandast@if.usp.br
RI Cattani, Mauro/N-9749-2013; Teixeira, Fernanda/A-9395-2013; Salvadori,
Maria Cecilia/A-9379-2013
FU Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Conselho
Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Coordenacao
de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), Brazil
FX This work was supported by the Fundacao de Amparo a Pesquisa do Estado
de Sao Paulo (FAPESP), the Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq), and Coordenacao de Aperfeicoamento de
Pessoal de Nivel Superior (CAPES), Brazil.
NR 10
TC 1
Z9 1
U1 0
U2 18
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 21
PY 2013
VL 113
IS 23
AR 234904
DI 10.1063/1.4811456
PG 4
WC Physics, Applied
SC Physics
GA 172NT
UT WOS:000321011700079
ER
PT J
AU Bianchetti, CM
Harmann, CH
Takasuka, TE
Hura, GL
Dyer, K
Fox, BG
AF Bianchetti, Christopher M.
Harmann, Connor H.
Takasuka, Taichi E.
Hura, Gregory L.
Dyer, Kevin
Fox, Brian G.
TI Fusion of Dioxygenase and Lignin-binding Domains in a Novel Secreted
Enzyme from Cellulolytic Streptomyces sp SirexAA-E
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID RHODOCOCCUS-OPACUS 1CP; X-RAY-SCATTERING; PROTOCATECHUATE
3,4-DIOXYGENASE; CRYSTAL-STRUCTURE; BREVIBACTERIUM-FUSCUM; KEY ENZYME;
CELL-WALL; 1,2-DIOXYGENASE; CRYSTALLOGRAPHY; BIOSYNTHESIS
AB Streptomyces sp. SirexAA-E is a highly cellulolytic bacterium isolated from an insect/microbe symbiotic community. When grown on lignin-containing biomass, it secretes SACTE_2871, an aromatic ring dioxygenase domain fused to a family 5/12 carbohydrate-binding module (CBM 5/12). Here we present structural and catalytic studies of this novel fusion enzyme, thus providing insight into its function. The dioxygenase domain has the core beta-sandwich fold typical of this enzyme family but lacks a dimerization domain observed in other intradiol dioxygenases. Consequently, the x-ray structure shows that the enzyme is monomeric and the Fe(III)-containing active site is exposed to solvent in a shallow depression on a planar surface. Purified SACTE_2871 catalyzes the O-2-dependent intradiol cleavage of catechyl compounds from lignin biosynthetic pathways, but not their methylated derivatives. Binding studies show that SACTE_2871 binds synthetic lignin polymers and chitin through the interactions of the CBM 5/12 domain, representing a new binding specificity for this fold-family. Based on its unique structural features and functional properties, we propose that SACTE_2871 contributes to the invasive nature of the insect/microbial community by destroying precursors needed by the plant for de novo lignin biosynthesis as part of its natural wounding response.
C1 [Bianchetti, Christopher M.; Harmann, Connor H.; Takasuka, Taichi E.; Fox, Brian G.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA.
[Hura, Gregory L.; Dyer, Kevin] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Fox, BG (reprint author), Univ Wisconsin, 433 Babcock Dr, Madison, WI 53706 USA.
EM bgfox@biochem.wisc.edu
FU United States Department of Energy, Basic Energy Sciences, Office of
Science [W-31-109-ENG-38]; College of Agricultural and Life Sciences,
Department of Biochemistry; Graduate School of the University of
Wisconsin; Michigan Economic Development Corporation; Michigan
Technology Tri-Corridor Grant [085P1000817]; DOE program Integrated
Diffraction Analysis Technologies [IDAT-DE-AC02-05CH11231]
FX We thank the Dr. Craig A. Bingman (University of Wisconsin Center for
Eukaryotic Structural Genomics) for access to crystallization robotics,
Grzegory Sabat (Biotechnology Center, University of Wisconsin-Madison)
for assistance with mass spectrometry, Dr. John Ralph and Dr. Yuki
Tobimatsu (Great Lakes Bioenergy Research Center, University of
Wisconsin) for gifts of synthetic lignins and 5-OH-ferulate, and Dr.
Curtis Wilkerson and Saunia Withers (Great Lakes Bioenergy Research
Center, Michigan State University) for the gift of the caffeoyl-CoA
synthesis enzyme Nt4CL1. We also thank Dr. Ralph for many stimulating
discussions on the complexities of lignin. Use of the Advanced Photon
Source was supported by the United States Department of Energy, Basic
Energy Sciences, Office of Science, under contract number
W-31-109-ENG-38. Use of the Life Science Collaborative Access Team at
the Advanced Photon Source was supported by the College of Agricultural
and Life Sciences, Department of Biochemistry, the Graduate School of
the University of Wisconsin, the Michigan Economic Development
Corporation, and Michigan Technology Tri-Corridor Grant 085P1000817).
X-ray scattering studies at the SIBYLS was supported by DOE program
Integrated Diffraction Analysis Technologies (IDAT-DE-AC02-05CH11231).
NR 60
TC 9
Z9 9
U1 5
U2 27
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
EI 1083-351X
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JUN 21
PY 2013
VL 288
IS 25
BP 18574
EP 18587
DI 10.1074/jbc.M113.475848
PG 14
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 168QZ
UT WOS:000320721900057
PM 23653358
ER
PT J
AU Butler, MC
Kervern, G
Theis, T
Ledbetter, MP
Ganssle, PJ
Blanchard, JW
Budker, D
Pines, A
AF Butler, Mark C.
Kervern, Gwendal
Theis, Thomas
Ledbetter, Micah P.
Ganssle, Paul J.
Blanchard, John W.
Budker, Dmitry
Pines, Alexander
TI Parahydrogen-induced polarization at zero magnetic field
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID PARA-HYDROGEN; SPIN SYSTEMS; NMR; RESONANCE; MAGNETOMETRY; STATES; ORDER
AB We use symmetry arguments and simple model systems to describe the conversion of the singlet state of parahydrogen into an oscillating sample magnetization at zero magnetic field. During an initial period of free evolution governed by the scalar-coupling Hamiltonian H-J, the singlet state is converted into scalar spin order involving spins throughout the molecule. A short dc pulse along the z axis rotates the transverse spin components of nuclear species I and S through different angles, converting a portion of the scalar order into vector order. The development of vector order can be described analytically by means of single-transition operators, and it is found to be maximal when the transverse components of I are rotated by an angle of +/-pi/2 relative to those of S. A period of free evolution follows the pulse, during which the vector order evolves as a set of oscillating coherences. The imaginary parts of the coherences represent spin order that is not directly detectable, while the real parts can be identified with oscillations in the z component of the molecular spin dipole. The dipole oscillations are due to a periodic exchange between I-z and S-z, which have different gyromagnetic ratios. The frequency components of the resulting spectrum are imaginary, since the pulse cannot directly induce magnetization in the sample; it is only during the evolution under H-J that the vector order present at the end of the pulse evolves into detectable magnetization. (C) 2013 AIP Publishing LLC.
C1 [Butler, Mark C.; Kervern, Gwendal; Theis, Thomas; Ganssle, Paul J.; Blanchard, John W.; Pines, Alexander] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Butler, Mark C.; Kervern, Gwendal; Theis, Thomas; Ganssle, Paul J.; Blanchard, John W.; Pines, Alexander] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Ledbetter, Micah P.; Budker, Dmitry] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Budker, Dmitry] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Butler, MC (reprint author), Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
EM mrkcbutler@gmail.com
RI Butler, Mark/L-6906-2013; Theis, Thomas/J-2304-2014; Budker,
Dmitry/F-7580-2016
OI Blanchard, John/0000-0002-1621-6637; Butler, Mark/0000-0002-1273-5771;
Theis, Thomas/0000-0001-6779-9978; Budker, Dmitry/0000-0002-7356-4814
FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering [DE-AC02-05CH11231];
National Science Foundation (NSF) [CHE-095765]
FX Research was supported by the U.S. Department of Energy (DOE), Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering
under Contract No. DE-AC02-05CH11231 [theoretical work, PHIP
experiments, salaries for G. Kervern, T. Theis, P. Ganssle, J.
Blanchard, A. Pines], and by the National Science Foundation (NSF) under
Award No. CHE-095765 [zero-field instrumentation, salaries for M.
Butler, M. Ledbetter, D. Budker, A. Pines].
NR 32
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Z9 5
U1 0
U2 28
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JUN 21
PY 2013
VL 138
IS 23
AR 234201
DI 10.1063/1.4805062
PG 21
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 172NZ
UT WOS:000321012400009
PM 23802953
ER
PT J
AU Pronskikh, VS
AF Pronskikh, V. S.
TI RADIATION STUDIES FOR THE Mu2e EXPERIMENT: A REVIEW
SO MODERN PHYSICS LETTERS A
LA English
DT Review
DE Muon to electron conversion; apparatus design; energy deposition;
radiation damage; neutron background; Monte Carlo simulations
ID DEFECT PRODUCTION; METALS; RECOVERY
AB The Mu2e experiment being designed at Fermilab will be searching for a rare event - conversion of muon into electron in the field of a nucleus without emission of neutrinos - observation of which would provide unambiguous evidence for physics beyond the Standard Model, making use of an 8 GeV 8 kW proton beam. As an experiment to be performed at the Intensity Frontier, taking advantage of high-intensity proton beams, the Mu2e experimental setup will be residing in a harsh radiation environment created by secondary particle fluxes.
Radiation quantities in different parts of the Mu2e apparatus, such as neutron flux, peak power density, displacements per atom (DPA), absorbed dose, dynamic heat load simulated using the MARS15 code are reviewed in this work. Radiation levels and requirements for Heat and Radiation Shield (HRS), Transport Solenoid (TS), residual dose and decay heat from the Mu2e target, beam dump design, rates in Cosmic Ray Veto (CRV) counters as well as stopping target monitor (STM) are considered. Airflow, surface and ground water activation are estimated. Recent developments in the MARS15 DPA model applied in this work are described, their consequences are discussed.
C1 Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, Batavia, IL 60510 USA.
RP Pronskikh, VS (reprint author), Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, MS 220,Kirk Rd & Pine Str, Batavia, IL 60510 USA.
EM vspron@fnal.gov
NR 23
TC 1
Z9 1
U1 0
U2 2
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0217-7323
J9 MOD PHYS LETT A
JI Mod. Phys. Lett. A
PD JUN 21
PY 2013
VL 28
IS 19
AR 1330014
DI 10.1142/S0217732313300140
PG 16
WC Physics, Nuclear; Physics, Particles & Fields; Physics, Mathematical
SC Physics
GA 170UD
UT WOS:000320878800001
ER
PT J
AU Fishman, RS
AF Fishman, Randy S.
TI Field dependence of the spin state and spectroscopic modes of
multiferroic BiFeO3
SO PHYSICAL REVIEW B
LA English
DT Article
AB The spectroscopic modes of multiferroic BiFeO3 provide detailed information about the very small anisotropy and Dzyaloshinskii-Moriya (DM) interactions responsible for the long-wavelength, distorted cycloid below T-N = 640 K. A microscopic model that includes two DM interactions and easy-axis anisotropy predicts both the zero-field spectroscopic modes as well as their splitting and evolution in a magnetic field applied along a cubic axis. While only six modes are optically active in zero field, all modes at the cycloidal wave vector are activated by a magnetic field. The three magnetic domains of the cycloid are degenerate in zero field but one domain has lower energy than the other two in nonzero field. Measurements imply that the higher-energy domains are depopulated above about 6 T and have a maximum critical field of 16 T, below the critical field of 19 T for the lowest-energy domain. Despite the excellent agreement with the measured spectroscopic frequencies, some discrepancies with the measured spectroscopic intensities suggest that other weak interactions may be missing from the model.
C1 Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Fishman, RS (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, POB 2008, Oak Ridge, TN 37831 USA.
FU US Department of Energy, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division
FX I gratefully acknowledge conversations with Nobuo Furukawa, Masaaki
Matsuda, Shin Miyahara, Jan Musfeldt, Urmas Nagel, Satoshi Okamoto,
Toomas Room, Rogerio de Sousa, and Diyar Talbayev. Research was
sponsored by the US Department of Energy, Office of Basic Energy
Sciences, Materials Sciences and Engineering Division.
NR 36
TC 13
Z9 13
U1 0
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 21
PY 2013
VL 87
IS 22
AR 224419
DI 10.1103/PhysRevB.87.224419
PG 8
WC Physics, Condensed Matter
SC Physics
GA 169FX
UT WOS:000320766100004
ER
PT J
AU Dhaka, RS
Lee, Y
Anand, VK
Johnston, DC
Harmon, BN
Kaminski, A
AF Dhaka, R. S.
Lee, Y.
Anand, V. K.
Johnston, D. C.
Harmon, B. N.
Kaminski, Adam
TI Angle-resolved photoemission spectroscopy study of BaCo2As2
SO PHYSICAL REVIEW B
LA English
DT Article
ID 43 K; SUPERCONDUCTIVITY; LAO1-XFXFEAS; TRANSITION
AB We use angle-resolved photoemission spectroscopy and full-potential linearized augmented-plane-wave (FP-LAPW) calculations to study the electronic structure of BaCo2As2. The Fermi surface (FS) maps and the corresponding band dispersion data (at 90 and 200 K) reveal a small electron pocket at the center and a large electron pocket at the corner of the Brillouin zone. Therefore the nesting between electron and hole FS pockets is absent in this compound, in contrast to the parent compounds of FeAs-based high-T-c superconductors. The electron pockets at the center of the zone are surrounded by two sets of four smaller electron pockets. The electronic structure at about 500 meV binding energy is very similar to features at the chemical potential in BaFe2As2. This indicates that complete substitution of Co for Fe causes a nearly rigid shift in the chemical potential by adding two electrons per formula unit at higher binding energies. However at lower binding energies similar to 270 meV, the electron pocket at the center of the zone is absent, unlike in the Co-substituted Fe-based materials. This demonstrates that the rigid band picture is valid only at higher binding energies and breaks down closer to the chemical potential in BaCo2As2. We also observed the presence of a flat band near the Fermi energy that may have consequences for transport and thermodynamical properties. The experimental FS topology as well as band dispersion data are in reasonable agreement with the FP-LAPW calculations.
C1 Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Dhaka, RS (reprint author), Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
EM kaminski@ameslab.gov
RI Dhaka, Rajendra/C-2486-2013; Anand, Vivek Kumar/J-3381-2013
OI Anand, Vivek Kumar/0000-0003-2023-7040
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering; U.S. Department of Energy by Iowa
State University [DE-AC02-07CH11358]; Office of Basic Energy Sciences,
U.S. Department of Energy [DE-AC02-05CH11231]
FX We thank Aaron Bostwick and Eli Rotenberg for excellent support at the
ALS and Abhishek Pandey for helpful discussions. This research was
supported by the U.S. Department of Energy, Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering. Ames
Laboratory is operated for the U.S. Department of Energy by Iowa State
University under Contract No. DE-AC02-07CH11358. The Advanced Light
Source is supported by the Office of Basic Energy Sciences, U.S.
Department of Energy under Contract No. DE-AC02-05CH11231.
NR 32
TC 15
Z9 15
U1 3
U2 44
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 21
PY 2013
VL 87
IS 21
AR 214516
DI 10.1103/PhysRevB.87.214516
PG 6
WC Physics, Condensed Matter
SC Physics
GA 169FR
UT WOS:000320765200004
ER
PT J
AU Kim, H
Kogan, VG
Cho, K
Tanatar, MA
Prozorov, R
AF Kim, H.
Kogan, V. G.
Cho, K.
Tanatar, M. A.
Prozorov, R.
TI Rutgers relation for the analysis of superfluid density in
superconductors
SO PHYSICAL REVIEW B
LA English
DT Article
ID MAGNETIC PENETRATION DEPTH; MUON SPIN ROTATION; UPPER CRITICAL-FIELD;
T-C SUPERCONDUCTORS; VORTEX CORES; NIOBIUM; TEMPERATURE; EXCITATIONS;
CRYSTALS; MGB2
AB It is shown that the thermodynamic Rutgers relation for the second-order phase transitions can be used for the analysis of the superfluid density data irrespective of complexities of the Fermi surface, structure of the superconducting gap, pairing strength, or scattering. The only limitation is that critical fluctuations should be weak so that the mean-field theory of the second-order phase transitions is applicable. By using the Rutgers relation, the zero-temperature value of the London penetration depth lambda(0) is related to the specific heat jump Delta C and the slope of upper critical field dH(c2)/dT at the transition temperature T-c, provided the data on Delta lambda = lambda(T) - lambda(0) are available in a broad temperature domain. We then provide a way to determine lambda(0), the quantity difficult to determine within many techniques.
C1 [Kim, H.; Kogan, V. G.; Cho, K.; Tanatar, M. A.; Prozorov, R.] Ames Lab, Ames, IA 50011 USA.
[Kim, H.; Tanatar, M. A.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Prozorov, R (reprint author), Ames Lab, Ames, IA 50011 USA.
EM prozorov@ameslab.gov
FU US Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-AC02-07CH11358]
FX We thank A. Chubukov for useful discussions. The work was supported by
the US Department of Energy, Office of Basic Energy Sciences, Division
of Materials Sciences and Engineering under Contract No.
DE-AC02-07CH11358.
NR 45
TC 3
Z9 3
U1 2
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 21
PY 2013
VL 87
IS 21
AR 214518
DI 10.1103/PhysRevB.87.214518
PG 6
WC Physics, Condensed Matter
SC Physics
GA 169FR
UT WOS:000320765200006
ER
PT J
AU de Oteyza, DG
Gorman, P
Chen, YC
Wickenburg, S
Riss, A
Mowbray, DJ
Etkin, G
Pedramrazi, Z
Tsai, HZ
Rubio, A
Crommie, MF
Fischer, FR
AF de Oteyza, Dimas G.
Gorman, Patrick
Chen, Yen-Chia
Wickenburg, Sebastian
Riss, Alexander
Mowbray, Duncan J.
Etkin, Grisha
Pedramrazi, Zahra
Tsai, Hsin-Zon
Rubio, Angel
Crommie, Michael F.
Fischer, Felix R.
TI Direct Imaging of Covalent Bond Structure in Single-Molecule Chemical
Reactions
SO SCIENCE
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; CYCLIZATION; ENEDIYNES; RESOLUTION; CATALYSIS;
STEPS
AB Observing the intricate chemical transformation of an individual molecule as it undergoes a complex reaction is a long-standing challenge in molecular imaging. Advances in scanning probe microscopy now provide the tools to visualize not only the frontier orbitals of chemical reaction partners and products, but their internal covalent bond configurations as well. We used noncontact atomic force microscopy to investigate reaction-induced changes in the detailed internal bond structure of individual oligo-(phenylene-1,2-ethynylenes) on a (100) oriented silver surface as they underwent a series of cyclization processes. Our images reveal the complex surface reaction mechanisms underlying thermally induced cyclization cascades of enediynes. Calculations using ab initio density functional theory provide additional support for the proposed reaction pathways.
C1 [de Oteyza, Dimas G.; Chen, Yen-Chia; Wickenburg, Sebastian; Riss, Alexander; Pedramrazi, Zahra; Tsai, Hsin-Zon; Crommie, Michael F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[de Oteyza, Dimas G.; Rubio, Angel] UPV EHU Mat Phys Ctr, Ctr Fis Mat CSIC, E-20018 San Sebastian, Spain.
[Gorman, Patrick; Etkin, Grisha; Fischer, Felix R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Chen, Yen-Chia; Wickenburg, Sebastian; Crommie, Michael F.; Fischer, Felix R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA.
[Mowbray, Duncan J.; Rubio, Angel] Donostia Int Phys Ctr, E-20018 San Sebastian, Spain.
[Mowbray, Duncan J.; Rubio, Angel] Univ Pais Vasco UPV, EHU, Nanobio Spect Grp, E-20018 San Sebastian, Spain.
[Mowbray, Duncan J.; Rubio, Angel] Univ Pais Vasco UPV, EHU, ETSF Sci Dev Ctr, Dpto Fis Mat, E-20018 San Sebastian, Spain.
RP Crommie, MF (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM crommie@berkeley.edu; ffischer@berkeley.edu
RI de Oteyza, Dimas/H-5955-2013; Riss, Alexander/C-1565-2014; Mowbray,
Duncan/A-5531-2010; Rubio, Angel/A-5507-2008; DONOSTIA INTERNATIONAL
PHYSICS CTR., DIPC/C-3171-2014; Tsai, Hsin-Zon/J-1682-2016;
CSIC-UPV/EHU, CFM/F-4867-2012
OI de Oteyza, Dimas/0000-0001-8060-6819; Riss,
Alexander/0000-0002-3212-7925; Mowbray, Duncan/0000-0002-8520-0364;
Rubio, Angel/0000-0003-2060-3151; Tsai, Hsin-Zon/0000-0003-2097-0170;
FU Office of Naval Research BRC Program; Helios Solar Energy Research
Center; Office of Science, Office of Basic Energy Sciences, U.S.
Department of Energy [DE-AC02-05CH11231]; NSF [DMR-1206512]; European
Research Council [DYNamo ERC-2010-AdG-267374]; European Union
[FP7-PEOPLE-2010-IOF-271909]; Austrian Science Fund (FWF) [J3026-N16];
Spanish "Juan de la Cierva" program [JCI-2010-08156]
FX Supported by the Office of Naval Research BRC Program (molecular
synthesis, characterization, and STM imaging); the Helios Solar Energy
Research Center supported by the Office of Science, Office of Basic
Energy Sciences, U.S. Department of Energy under contract
DE-AC02-05CH11231 (STM and nc-AFM instrumentation development, AFM
operation); NSF grant DMR-1206512 (image analysis); and European
Research Council advanced grant DYNamo ERC-2010-AdG-267374 (ab initio
calculations). Computing time was provided by the Barcelona
Supercomputing Center "Red Espanola de Supercomputacion." D.G.d.O.
acknowledges fellowship support by the European Union under
FP7-PEOPLE-2010-IOF-271909, A.R. by Austrian Science Fund (FWF) grant
J3026-N16, and D.J.M. by the Spanish "Juan de la Cierva" program
(JCI-2010-08156). The data presented in the manuscript are tabulated in
the main paper and in the supplementary materials. The authors declare
no conflicts of interest.
NR 26
TC 146
Z9 148
U1 13
U2 260
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JUN 21
PY 2013
VL 340
IS 6139
BP 1434
EP 1437
DI 10.1126/science.1238187
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 167QL
UT WOS:000320647000037
PM 23722428
ER
PT J
AU Croft, S
Henzlova, D
AF Croft, S.
Henzlova, D.
TI Determining Cf-252 source strength by absolute passive neutron
correlation counting
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Source calibration; Multiplicity counting; Neutron correlation analysis;
Californium neutrons; Absolute metrology
AB Physically small, lightly encapsulated, radionuclide sources containing Cf-252 are widely used for a vast variety of industrial, medical, educational and research applications requiring a convenient source of neutrons. For many quantitative applications, such as detector efficiency calibrations, the absolute strength of the neutron emission is needed. In this work we show how, by using a neutron multiplicity counter the neutron emission rate can be obtained with high accuracy. This provides an independent and alternative way to create reference sources in-house for laboratories such as ours engaged in international safeguards metrology. The method makes use of the unique and well known properties of the Cf-252 spontaneous fission system and applies advanced neutron correlation counting methods. We lay out the foundation of the method and demonstrate it experimentally. We show that accuracy comparable to the best methods currently used by national bodies to certify neutron source strengths is possible. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Croft, S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Henzlova, D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Henzlova, D (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM henzlova@lanl.gov
FU U.S. Department of Energy (DOE), National Nuclear Security
Administration (NNSA), Office of Nonproliferation Research and
Development [NA-22]
FX This work was funded in part by the U.S. Department of Energy (DOE),
National Nuclear Security Administration (NNSA), Office of
Nonproliferation Research and Development (NA-22). We also warmly thank
Dr. Martyn Swinhoe for reading the manuscript and providing us with
enthusiastic encouragement.
NR 21
TC 3
Z9 5
U1 0
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 21
PY 2013
VL 714
BP 5
EP 12
DI 10.1016/j.nima.2013.02.002
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148NO
UT WOS:000319251800002
ER
PT J
AU Aielli, G
Ball, R
Bilki, B
Chapman, JW
Cardarelli, R
Dai, T
Diehl, E
Dubbert, J
Ferretti, C
Feng, H
Francis, K
Guan, L
Han, L
Hou, S
Levin, D
Li, B
Liu, L
Paolozzi, L
Repond, J
Roloff, J
Santonico, R
Song, HY
Wang, XL
Wu, Y
Xia, L
Xu, L
Zhao, T
Zhao, Z
Zhou, B
Zhu, J
AF Aielli, G.
Ball, R.
Bilki, B.
Chapman, J. W.
Cardarelli, R.
Dai, T.
Diehl, E.
Dubbert, J.
Ferretti, C.
Feng, H.
Francis, K.
Guan, L.
Han, L.
Hou, S.
Levin, D.
Li, B.
Liu, L.
Paolozzi, L.
Repond, J.
Roloff, J.
Santonico, R.
Song, H. Y.
Wang, X. L.
Wu, Y.
Xia, L.
Xu, L.
Zhao, T.
Zhao, Z.
Zhou, B.
Zhu, J.
TI Studies on fast triggering and high precision tracking with Resistive
Plate Chambers
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE RPC; Trigger; Tracking; Time resolution; Spatial resolution
ID OF-FLIGHT DETECTOR; SPATIAL-RESOLUTION; ALICE EXPERIMENT; RPC SYSTEM;
PERFORMANCE; LHC
AB We report on studies of fast triggering and high precision tracking using Resistive Plate Chambers (RPCs). Two beam tests were carried out with the 180 GeV/c muon beam at CERN using glass RPCs with gas gaps of 1.15 mm and equipped with readout strips with 1.27 mm pitch. This is the first beam test of RPCs with fine-pitch readout strips that explores precision tracking and triggering capabilities. RPC signals were acquired with precision timing and charge integrating readout electronics at both ends of the strips. The time resolution was measured to be better than 600 ps and the average spatial resolution was found to be 220 mu m using charge information and 287 mu m only using signal arrival time information. The dual-ended readout allows the determination of the average and the difference of the signal arrival times. The average time was found to be independent of the incident particle position along the strip and is useful for triggering purposes. The time difference yielded a determination of the hit position with a precision of 7.5 mm along the strip. These results demonstrate the feasibility using RPCs for fast and high-resolution triggering and tracking. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Aielli, G.; Cardarelli, R.; Paolozzi, L.; Santonico, R.] Univ Roma Tor Vergata, Rome, Italy.
[Aielli, G.; Cardarelli, R.; Paolozzi, L.; Santonico, R.] INFN Roma Tor Vergata, Rome, Italy.
[Ball, R.; Chapman, J. W.; Dai, T.; Diehl, E.; Dubbert, J.; Ferretti, C.; Feng, H.; Guan, L.; Levin, D.; Liu, L.; Roloff, J.; Wu, Y.; Xu, L.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Bilki, B.; Francis, K.; Repond, J.; Xia, L.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Guan, L.; Han, L.; Li, B.; Song, H. Y.; Wang, X. L.; Wu, Y.; Xu, L.; Zhao, Z.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Hou, S.; Li, B.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
RP Zhu, J (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
EM junjie@umich.edu
OI Bilki, Burak/0000-0001-9515-3306
FU Department of Energy [DE-SC0007859, DE-AC02-98CH10886]; National Science
Foundation of China [11025528]
FX The authors would like to thank M. Lippert and P. Schwegler from the Max
Plank Institute, and G. Mikenberg, M. Shoa and their colleagues from the
ATLAS TGC group for their help during the beam tests. The authors would
also like to acknowledge the precious help of M.C.S. Williams and R.
Zouevski on using NINO front-end electronics. This work is supported in
part by the Department of Energy under contracts DE-SC0007859 and
DE-AC02-98CH10886, and by National Science Foundation of China under
contract 11025528.
NR 19
TC 4
Z9 4
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 21
PY 2013
VL 714
BP 115
EP 120
DI 10.1016/j.nima.2013.02.044
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148NO
UT WOS:000319251800017
ER
PT J
AU De Boer, RJ
Perelson, AS
AF De Boer, Rob J.
Perelson, Alan S.
TI Quantifying T lymphocyte turnover
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Review
DE Labeling; Modeling; Parameter estimation; Immune system; Life spans
ID SIMIAN IMMUNODEFICIENCY VIRUS; ACTIVE ANTIRETROVIRAL THERAPY; DIACETATE
SUCCINIMIDYL ESTER; HEMATOPOIETIC STEM-CELLS; STRUCTURED
POPULATION-MODELS; DEPENDENT BRANCHING-PROCESS; EXCISION CIRCLE CONTENT;
RECENT THYMIC EMIGRANTS; PROLIFERATION IN-VITRO; PEPTIDE-MHC COMPLEXES
AB Peripheral T cell populations are maintained by production of naive T cells in the thymus, clonal expansion of activated cells, cellular self-renewal (or homeostatic proliferation), and density dependent cell life spans. A variety of experimental techniques have been employed to quantify the relative contributions of these processes. In modern studies lymphocytes are typically labeled with 5-bromo-2'-deoxyuridine (BrdU), deuterium, or the fluorescent dye carboxy-fluorescein diacetate succinimidyl ester (CFSE), their division history has been studied by monitoring telomere shortening and the dilution of T cell receptor excision circles (TRECs) or the dye CFSE, and clonal expansion has been documented by recording changes in the population densities of antigen specific cells. Proper interpretation of such data in terms of the underlying rates of T cell production, division, and death has proven to be notoriously difficult and involves mathematical modeling.
We review the various models that have been developed for each of these techniques, discuss which models seem most appropriate for what type of data, reveal open problems that require better models, and pinpoint how the assumptions underlying a mathematical model may influence the interpretation of data. Elaborating various successful cases where modeling has delivered new insights in T cell population dynamics, this review provides quantitative estimates of several processes involved in the maintenance of naive and memory, CD4(+) and CD8(+) T cell pools in mice and men. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [De Boer, Rob J.] Univ Utrecht, NL-3508 TC Utrecht, Netherlands.
[Perelson, Alan S.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[De Boer, Rob J.; Perelson, Alan S.] Santa Fe Inst, Santa Fe, NM 87501 USA.
RP De Boer, RJ (reprint author), Univ Utrecht, NL-3508 TC Utrecht, Netherlands.
EM r.j.deboer@uu.nl; asp@lanl.gov
RI De Boer, Rob/B-6050-2011
OI De Boer, Rob/0000-0002-2130-691X
FU U.S. Department of Energy [DE-AC52-06NA25396]; NIH [AI028433, OD011095,
P01-AI071195, P20-RR018754, HHSN272201000055C]; Netherlands Organisation
for Scientific Research NWO [016.048.603]; National Science Foundation
[NSF PHY11-25915]
FX We thank Jose Borghans, Vitaly Ganusov, Andrew Yates and Ruy Ribeiro for
discussions and helpful comments on various parts of this review.
Portions of this work were done under the auspices of the U.S.
Department of Energy under contract DE-AC52-06NA25396 and supported by
NIH Grants AI028433, OD011095, P01-AI071195, and P20-RR018754, and
contract HHSN272201000055C. RdB thanks the Netherlands Organisation for
Scientific Research NWO (VICI Grant 016.048.603) for financial support.
Part of this paper was written at the Santa Fe Institute and it was
finished at the KITP at UCSB. This research was supported in part by the
National Science Foundation under Grant no. NSF PHY11-25915.
NR 248
TC 46
Z9 47
U1 5
U2 43
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-5193
J9 J THEOR BIOL
JI J. Theor. Biol.
PD JUN 21
PY 2013
VL 327
BP 45
EP 87
DI 10.1016/j.jtbi.2012.12.025
PG 43
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 135AM
UT WOS:000318258400005
PM 23313150
ER
PT J
AU Lau, EY
Wong, SE
Baker, SE
Bearinger, JP
Koziol, L
Valdez, CA
Satcher, JH
Aines, RD
Lightstone, FC
AF Lau, Edmond Y.
Wong, Sergio E.
Baker, Sarah E.
Bearinger, Jane P.
Koziol, Lucas
Valdez, Carlos A.
Satcher, Joseph H., Jr.
Aines, Roger D.
Lightstone, Felice C.
TI Comparison and Analysis of Zinc and Cobalt-Based Systems as Catalytic
Entities for the Hydration of Carbon Dioxide
SO PLOS ONE
LA English
DT Article
ID POLARIZABLE CONTINUUM MODEL; HYDROGEN-BOND NETWORK; ANHYDRASE-II;
ACTIVE-SITE; METHANOSARCINA-THERMOPHILA; PROTON-TRANSFER; CO2 CAPTURE;
X-RAY; SPECTROSCOPIC MODEL; SYNTHETIC ANALOGS
AB In nature, the zinc metalloenzyme carbonic anhydrase II (CAII) efficiently catalyzes the conversion of carbon dioxide (CO2) to bicarbonate under physiological conditions. Many research efforts have been directed towards the development of small molecule mimetics that can facilitate this process and thus have a beneficial environmental impact, but these efforts have met very limited success. Herein, we undertook quantum mechanical calculations of four mimetics, 1,5,9-triazacyclododedacane, 1,4,7,10-tetraazacyclododedacane, tris(4,5-dimethyl-2-imidazolyl)phosphine, and tris(2-benzimidazolylmethyl)amine, in their complexed form either with the Zn2+ or the Co2+ ion and studied their reaction coordinate for CO2 hydration. These calculations demonstrated that the ability of the complex to maintain a tetrahedral geometry and bind bicarbonate in a unidentate manner were vital for the hydration reaction to proceed favorably. Furthermore, these calculations show that the catalytic activity of the examined zinc complexes was insensitive to coordination states for zinc, while coordination states above four were found to have an unfavorable effect on product release for the cobalt counterparts.
C1 [Lau, Edmond Y.; Wong, Sergio E.; Baker, Sarah E.; Bearinger, Jane P.; Koziol, Lucas; Valdez, Carlos A.; Satcher, Joseph H., Jr.; Aines, Roger D.; Lightstone, Felice C.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA.
RP Aines, RD (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA.
EM aines1@llnl.gov; felice@llnl.gov
FU Laboratory Directed Research and Development Program at Lawrence
Livermore National Laboratory [10-ERD-035]
FX The authors thank the Laboratory Directed Research and Development
Program at Lawrence Livermore National Laboratory for funding
10-ERD-035. The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 89
TC 3
Z9 3
U1 3
U2 27
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 20
PY 2013
VL 8
IS 6
AR e66187
DI 10.1371/journal.pone.0066187
PG 14
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 190LY
UT WOS:000322342800040
PM 23840420
ER
PT J
AU Bouwman, J
Fournier, M
Sims, IR
Leone, SR
Wilson, KR
AF Bouwman, Jordy
Fournier, Martin
Sims, Ian R.
Leone, Stephen R.
Wilson, Kevin R.
TI Reaction Rate and Isomer-Specific Product Branching Ratios of C2H +
C4H8: 1-Butene, cis-2-Butene, trans-2-Butene, and Isobutene at 79 K
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID PHOTOIONIZATION MASS-SPECTROMETRY; NEUTRAL-NEUTRAL REACTIONS; LAVAL
NOZZLE APPARATUS; SET MODEL CHEMISTRY; ETHYNYL RADICAL C2H; TITANS
ATMOSPHERE; RATE COEFFICIENTS; CROSS-SECTIONS; LOW-TEMPERATURE; HAZE
FORMATION
AB The reactions of C2H radicals with C4H8 isomers 1-butene, cis-2-butene, trans-2-butene, and isobutene are studied by laser photolysis-vacuum ultraviolet mass spectrometry in a Laval nozzle expansion at 79 K. Bimolecular-reaction rate constants are obtained by measuring the formation rate of the reaction product species as a function of the reactant density under pseudo-first-order conditions. The rate constants are (1.9 +/- 0.5) x 10(-10), (1.7 +/- 0.5) x 10(-10), (2.1 +/- 0.7) x 10(-10), and (1.8 +/- 0.9) x 10(-10) cm(3) s(-1) for the reaction of C2H with 1-butene, cis-2-butene, trans-2-butene, and isobutene, respectively. Bimolecular rate constants for 1-butene and isobutene compare well to values measured previously at 103 K using C2H chemiluminescence. Photoionization spectra of the reaction products are measured and fitted to ionization spectra of the contributing isomers. In conjunction with absolute-ionization cross sections, these fits provide isomer-resolved product branching fractions. The reaction between C2H and 1-butene yields (65 +/- 10)% C4H4 in the form of vinylacetylene and (35 +/- 10)% C5H6 in the form of 4-penten-1-yne. The cis-2-butene and trans-2-butene reactions yield solely 3-penten-1-yne, and no discrimination is made between cis- and trans-3-penten-1-yne. Last, the isobutene reaction yields (26 +/- 15)% 3-penten-1-yne, (35 +/- 15)% 2-methyl-1-buten-3-yne, and (39 +/- 15)% 4-methyl-3-penten-1-yne. The branching fractions reported for the C2H and butene reactions indicate that these reactions preferentially proceed via CH3 or C2H3 elimination rather than H-atom elimination. Within the experimental uncertainties, no evidence is found for the formation of cyclic species.
C1 [Bouwman, Jordy; Leone, Stephen R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Bouwman, Jordy; Leone, Stephen R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Fournier, Martin; Sims, Ian R.] Univ Rennes 1, CNRS, UMR 6251, Inst Phys Rennes, F-35042 Rennes, France.
[Leone, Stephen R.; Wilson, Kevin R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Wilson, KR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM krwilson@lbl.gov
RI Sims, Ian/F-8989-2014;
OI Sims, Ian/0000-0001-7870-1585; Fournier, Martin/0000-0002-8771-3913
FU Office of Science, Office of Basic Energy Sciences of the U.S.
Department of Energy at the Lawrence Berkeley National Laboratory
[DE-AC02-05CH11231]; NASA [NNH13AV43I]; National Science Foundation
Engineering Research Center for Extreme Ultraviolet Science and
Technology; CNRS; French Programme National de Planetologie; French
Ministere de l'Enseignement Superieur et de la Recherche;
France-Berkeley Fund
FX The Advanced Light Source and Chemical Sciences Division (K.R.W. and
S.R.L.) are supported by the Director, Office of Science, Office of
Basic Energy Sciences of the U.S. Department of Energy under contract
no. DE-AC02-05CH11231 at the Lawrence Berkeley National Laboratory.
K.R.W. and S.R.L. are supported in part by NASA grant no. NNH13AV43I.
Support for J.B. was obtained from the National Science Foundation
Engineering Research Center for Extreme Ultraviolet Science and
Technology. Construction of this Laval instrument was made possible by a
National Aeronautics and Space Administration Planetary Major Equipment
grant. I.R.S. thanks the CNRS for the award of sabbatical funding during
the period of this research and the French Programme National de
Planetologie for financial support. M.F. thanks the French Ministere de
l'Enseignement Superieur et de la Recherche for a doctoral grant. We
thank the France-Berkeley Fund for financial support.
NR 64
TC 6
Z9 6
U1 3
U2 44
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JUN 20
PY 2013
VL 117
IS 24
BP 5093
EP 5105
DI 10.1021/jp403637t
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 171FR
UT WOS:000320911000011
PM 23701666
ER
PT J
AU Goldman, N
Tamblyn, I
AF Goldman, Nir
Tamblyn, Isaac
TI Prebiotic Chemistry within a Simple Impacting Icy Mixture
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID TIGHT-BINDING METHOD; MOLECULAR-DYNAMICS; AMINO-ACIDS; EARLY EARTH;
EXTREME CONDITIONS; PRIMITIVE EARTH; COMETARY DELIVERY;
ORGANIC-MOLECULES; HIGH-PRESSURE; SIMULATIONS
AB We present results of prebiotic organic synthesis in shock compressed mixtures of simple ices from quantum molecular dynamics (MD) simulations extended to close to equilibrium time scales. Given the likelihood of an inhospitable prebiotic atmosphere on early Earth, it is possible that impact processes of comets or other icy bodies were a source of prebiotic chemical compounds on the primitive planet. We observe that moderate shock pressures and temperatures within a CO2-rich icy mixture (36 GPa and 2800 K) produce a number of nitrogen containing heterocycles, which dissociate to form functionalized aromatic hydrocarbons upon expansion and cooling to ambient conditions. In contrast, higher shock conditions (48-60 GPa, 3700-4800 K) resulted in the synthesis of long carbon-chain molecules, CH4, and formaldehyde. All shock compression simulations at these conditions have produced significant quantities of simple C-N bonded compounds such as HCN, HNC, and HNCO upon expansion and cooling to ambient conditions. Our results elucidate a mechanism for impact synthesis of prebiotic molecules at realistic impact conditions that is independent of external constraints such as the presence of a catalyst, illuminating UV radiation, or pre-existing conditions on a planet.
C1 [Goldman, Nir] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
[Tamblyn, Isaac] Univ Ontario Inst Technol, Dept Phys, Oshawa, ON L1H 7K4, Canada.
RP Goldman, N (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
EM ngoldman@llnl.gov
OI Tamblyn, Isaac/0000-0002-8146-6667
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; National Aeronautics and Space Administration
(NASA), Astrobiology: Exobiology and Evolutionary Biology program
[NNH11AQ67I]
FX The authors thank Lukasz Koziol for a critical reading of the
manuscript, and Liam Krauss for creation of the graphical TOC image.
This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344 and was funded by the National Aeronautics and Space
Administration (NASA), Astrobiology: Exobiology and Evolutionary Biology
program (#NNH11AQ67I). Computations were performed at LLNL using the
Aztec and RZCereal massively parallel computers.
NR 74
TC 19
Z9 19
U1 10
U2 54
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JUN 20
PY 2013
VL 117
IS 24
BP 5124
EP 5131
DI 10.1021/jp402976n
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 171FR
UT WOS:000320911000014
PM 23639050
ER
PT J
AU Kelly, DN
Lam, RK
Duffin, AM
Saykally, RJ
AF Kelly, Daniel N.
Lam, Royce K.
Duffin, Andrew M.
Saykally, Richard J.
TI Exploring Solid/Aqueous Interfaces with Ultradilute Electrokinetic
Analysis of Liquid Microjets
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID WATER MICROJETS; SURFACES; GENERATION; CHARGE
AB We describe a novel method that exploits electrokinetic streaming current measurements for the study of ion-interface affinity. Through the use of liquid microjets and ultradilute solutions (<1 mu M), we are able to overcome inherent difficulties in electrokinetic surface measurements engendered by changing double-layer thicknesses. Varying bulk KCl concentrations produce statistically significant changes in streaming current down at picomolar concentrations. Because the attending ion concentrations are below that from water autoionization, these data are compared with those from ultradilute HCl and KOH solutions assuming that the K+ and Cl- introduce no new counterions. This permits comparison of the individual effects of K+ and Cl- on the interface, evidencing a cooperative effect between these ions at silica surfaces. Altogether, these results establish the effectiveness of this experimental approach in revealing new ion-surface phenomena and indicate its promise for the general study of aqueous interfaces.
C1 [Kelly, Daniel N.; Lam, Royce K.; Duffin, Andrew M.; Saykally, Richard J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Kelly, Daniel N.; Lam, Royce K.; Duffin, Andrew M.; Saykally, Richard J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Saykally, RJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM saykally@berkeley.edu
OI Lam, Royce/0000-0003-2878-038X
FU NSF EAGER program [CHE-0963844]; Siemens Corporation through the Siemens
AG-UC Berkeley Strategic Partnership
FX This work was supported by grants from the NSF EAGER program (Grant
CHE-0963844) and from the Siemens Corporation through the Siemens AG-UC
Berkeley Strategic Partnership.
NR 25
TC 5
Z9 5
U1 2
U2 23
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 20
PY 2013
VL 117
IS 24
BP 12702
EP 12706
DI 10.1021/jp403583r
PG 5
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 171FS
UT WOS:000320911100033
ER
PT J
AU Som, S
Liu, W
Zhou, DDY
Magnotti, GM
Sivaramakrishnan, R
Longman, DE
Skodje, RT
Davis, MJ
AF Som, Sibendu
Liu, Wei
Zhou, Dingyu D. Y.
Magnotti, Gina M.
Sivaramakrishnan, Raghu
Longman, Douglas E.
Skodje, Rex T.
Davis, Michael J.
TI Quantum Tunneling Affects Engine Performance
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID SENSITIVITY-ANALYSIS; TRANSITION-STATE; COMBUSTION; IGNITION; KINETICS;
SYSTEMS; MODEL; HO2
AB We study the role of individual reaction rates on engine performance, with an emphasis on the contribution of quantum tunneling. It is demonstrated that the effect of quantum tunneling corrections for the reaction HO2 + HO2 = H2O2 +O-2 can have a noticeable impact on the performance of a high-fidelity model of a compression-ignition (e.g., diesel) engine, and that an accurate prediction of ignition delay time for the engine model requires an accurate estimation of the tunneling correction for this reaction. The three-dimensional model includes detailed descriptions of the chemistry of a surrogate for a biodiesel fuel, as well as all the features of the engine, such as the liquid fuel spray and turbulence. This study is part of a larger investigation of how the features of the dynamics and potential energy surfaces of key reactions, as well as their reaction rate uncertainties, affect engine performance, and results in these directions are also presented here.
C1 [Som, Sibendu; Magnotti, Gina M.; Longman, Douglas E.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Liu, Wei; Sivaramakrishnan, Raghu; Davis, Michael J.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Zhou, Dingyu D. Y.; Skodje, Rex T.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Magnotti, Gina M.] Georgia Inst Technol, Dept Mech Engn, Atlanta, GA 30332 USA.
RP Som, S (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI SIVARAMAKRISHNAN, RAGHU/C-3481-2008
OI SIVARAMAKRISHNAN, RAGHU/0000-0002-1867-1254
FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences,
Division of Chemical Sciences, Geosciences, and Biosciences
[DE-AC02-06CH11357]; DOE's Office of Vehicle Technologies, Office of
Energy Efficiency and Renewable Energy [DE-AC02-06CH11357]
FX This work was supported by the U.S. Department of Energy (DOE), Office
of Basic Energy Sciences, Division of Chemical Sciences, Geosciences,
and Biosciences, under Contract No. DE-AC02-06CH11357. This research was
also funded by the DOE's Office of Vehicle Technologies, Office of
Energy Efficiency and Renewable Energy, under contract No.
DE-AC02-06CH11357. The authors wish to thank Wade Sisk and Gupreet
Singh, program managers at the DOE, for their support. We gratefully
acknowledge the computing resources provided on "Fusion," a 320-node
computing cluster operated by the Laboratory Computing Resource Center
at Argonne National Laboratory.
NR 27
TC 9
Z9 9
U1 0
U2 37
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JUN 20
PY 2013
VL 4
IS 12
BP 2021
EP 2025
DI 10.1021/jz400874s
PG 5
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 172DE
UT WOS:000320979400006
PM 26283246
ER
PT J
AU Stewart, JT
Padilha, LA
Bae, WK
Koh, WK
Pietryga, JM
Klimov, VI
AF Stewart, John T.
Padilha, Lazaro A.
Bae, Wan Ki
Koh, Weon-Kyu
Pietryga, Jeffrey M.
Klimov, Victor I.
TI Carrier Multiplication in Quantum Dots within the Framework of Two
Competing Energy Relaxation Mechanisms
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID MULTIPLE EXCITON GENERATION; SEMICONDUCTOR NANOCRYSTALS; MULTIEXCITON
GENERATION; SILICON NANOCRYSTALS; SOLAR-CELLS; ELECTRONIC-STRUCTURE;
AUGER RECOMBINATION; PBSE NANOCRYSTALS; COLLOIDAL PBSE; SINGLE-PHOTON
AB The realization of high-yield, low-threshold carrier multiplication (CM) in semiconductor quantum dots (QDs) is a promising step toward third-generation photovoltaics (PV). Recent studies of QD solar cells have shown that CM can indeed produce greater-than-unity quantum efficiencies in photon-to-charge-carrier conversion, establishing the relevance of this process to practical PV technologies. While being appreciable, the reported CM yields are still not high enough for a significant increase in the power conversion efficiency over traditional bulk materials. At present, the design of nanomaterials with improved CM is hindered by a poor understanding of the mechanism underlying this process. Here, we present a possible solution to this problem by introducing a model that treats CM as a competition between impact-ionization-like scattering and non-CM energy losses. Importantly, it allows for evaluation of expected CM yields from fairly straightforward measurements of Auger recombination (inverse of CM) and near-band-edge carrier cooling. The validation of this model via a comparative CM study of PbTe, PbSe, and PbS QDs suggests that it indeed represents a predictive capability, which might help in the development of nanomaterials with improved CM performance.
C1 [Stewart, John T.; Padilha, Lazaro A.; Bae, Wan Ki; Koh, Weon-Kyu; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Ctr Adv Solar Photophys, C PCS, Los Alamos, NM 87545 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, Ctr Adv Solar Photophys, C PCS, POB 1663, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
RI Koh, Weon-kyu/G-8623-2013; Padilha, Lazaro/G-1523-2013;
OI Koh, Weon-kyu/0000-0002-6913-4184; Klimov, Victor/0000-0003-1158-3179
FU Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences
FX We acknowledge support of the Center for Advanced Solar Photophysics
(CASP), an Energy Frontier Research Center funded by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences.
NR 70
TC 26
Z9 26
U1 4
U2 68
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JUN 20
PY 2013
VL 4
IS 12
BP 2061
EP 2068
DI 10.1021/jz4004334
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 172DE
UT WOS:000320979400013
PM 26283253
ER
PT J
AU Wang, QQ
Nemoto, M
Li, DS
Weaver, JC
Weden, B
Stegemeier, J
Bozhilov, KN
Wood, LR
Milliron, GW
Kim, CS
DiMasi, E
Kisailus, D
AF Wang, Qianqian
Nemoto, Michiko
Li, Dongsheng
Weaver, James C.
Weden, Brian
Stegemeier, John
Bozhilov, Krassimir N.
Wood, Leslie R.
Milliron, Garrett W.
Kim, Christopher S.
DiMasi, Elaine
Kisailus, David
TI Phase Transformations and Structural Developments in the Radular Teeth
of Cryptochiton Stelleri
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
DE radula; biomineralization; -chitin; ferrihydrite; magnetite
ID CHITON ACANTHOPLEURA-HIRTOSA; 6-LINE FERRIHYDRITE; MINERALIZATION
PATHWAYS; IRON MINERALIZATION; CRYSTAL-STRUCTURE; ORGANIC MATRIX;
ALPHA-CHITIN; BIOMINERALIZATION; MAGNETITE; PROTEIN
AB During mineralization, the hard outer magnetite-containing shell of the radular teeth of Cryptochiton stelleri undergoes four distinct stages of structural and phase transformations: (i) the formation of a crystalline -chitin organic matrix that forms the structural framework of the non-mineralized teeth, (ii) the templated synthesis of ferrihydrite crystal aggregates along these organic fibers, (iii) subsequent solid state phase transformation from ferrihydrite to magnetite, and (iv) progressive magnetite crystal growth to form continuous parallel rods within the mature teeth. The underlying -chitin organic matrix appears to influence magnetite crystal aggregate density and the diameter and curvature of the resulting rods, both of which likely play critical roles in determining the local mechanical properties of the mature radular teeth.
C1 [Wang, Qianqian; Nemoto, Michiko; Li, Dongsheng; Milliron, Garrett W.; Kisailus, David] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA.
[Weaver, James C.] Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA.
[Weden, Brian; Wood, Leslie R.] Univ Calif Riverside, Mat Sci & Engn Program, Riverside, CA 92521 USA.
[Stegemeier, John; Kim, Christopher S.] Chapman Univ, Sch Earth & Environm Sci, Orange, CA 92866 USA.
[Bozhilov, Krassimir N.] Univ Calif Riverside, Cent Facil Adv Microscopy & Microanal, Riverside, CA 92521 USA.
[DiMasi, Elaine] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
RP Wang, QQ (reprint author), Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA.
EM david@engr.ucr.edu
FU USDOE [DE-AC02-98CH10886]; JSPS; ARO [W911NF-12-1-0257]; AFOSR
[FA9550-12-1-0249]
FX Q.W. and M.N. contributed equally to this work. We thank Sara Krause for
the illustration in Figure 1 A, Dr. Kenneth Evans-Lutterodt of the
National Synchrotron Light Source in Brookhaven National Laboratory for
contributing his expertise at the microdiffraction endstation X13B, Dr.
Vesna Stanic of the NSLS in BNL for her help in conducting experiments
at the diffraction endstation X6B, and Dr. Sam Webb of Stanford
Synchrotron Radiation Lightsource for his instrumental help with the mu
XRF measurements. The NSLS is supported under USDOE Contract
DE-AC02-98CH10886. Portions of this research were carried out at the
Stanford Synchrotron Radiation Lightsource, a Directorate of SLAC
National Accelerator Laboratory and an Office of Science User Facility
operated for the U.S. Department of Energy Office of Science by Stanford
University. M.N. was supported, in part, by the JSPS International
Training Program (ITP). We acknowledge the Central Facility for Advanced
Microscopy and Microanalysis at UC Riverside for use of sample prep and
electron microscopy imaging. This work was supported in part by ARO:
W911NF-12-1-0257 and AFOSR: FA9550-12-1-0249.
NR 48
TC 16
Z9 16
U1 2
U2 57
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1616-301X
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD JUN 20
PY 2013
VL 23
IS 23
BP 2908
EP 2917
DI 10.1002/adfm.201202894
PG 10
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 164BD
UT WOS:000320382800001
ER
PT J
AU Qiao, L
Zhang, KHL
Bowden, ME
Varga, T
Shutthanandan, V
Colby, R
Du, Y
Kabius, B
Sushko, PV
Biegalski, MD
Chambers, SA
AF Qiao, L.
Zhang, K. H. L.
Bowden, M. E.
Varga, T.
Shutthanandan, V.
Colby, R.
Du, Y.
Kabius, B.
Sushko, P. V.
Biegalski, M. D.
Chambers, S. A.
TI The Impacts of Cation Stoichiometry and Substrate Surface Quality on
Nucleation, Structure, Defect Formation, and Intermixing in Complex
Oxide Heteroepitaxy-LaCrO3 on SrTiO3(001)
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
DE oxide heteroepitaxy; nonstoichiometry; intermixing; molecular beam
epitaxy
ID PULSED-LASER DEPOSITION; THIN-FILMS; INTERFACES; GROWTH; DIAMOND
AB The ability to design and fabricate electronic devices with reproducible properties using complex oxides is critically dependent on our ability to controllably synthesize these materials in thin-film form. Structure-property relationships are intimately tied to film and interface composition. Here the effect of cation stoichiometry on structural quality and defect formation in LaCrO3 heteroepitaxial films prepared using molecular beam epitaxy is reported. From first principles the regions of stability of various candidate defects, along with the predicted effects of these defects on structural parameters, are calculated as a function of Cr and O chemical potential. Epitaxial LaCrO3 films readily nucleate and remain coherently strained on SrTiO3(001) over a wide range of La-to-Cr atom ratios, but La-rich films are of considerably lower structural quality than stoichiometric and Cr-rich films. Cation imbalances are accompanied by anti-site defect formation. Cation mixing occurs at the interface for all La-to-Cr ratios investigated and is not quenched by deposition on SrTiO3(001) at ambient temperature. Indiffused La atoms occupy Sr sites. Intermixing is effectively quenched by using molecular beam epitaxy to deposit LaCrO3 at ambient temperature on defect free Si(001). However, analogous pulsed laser deposition on Si is accompanied by cation mixing.
C1 [Qiao, L.; Zhang, K. H. L.; Chambers, S. A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99354 USA.
[Qiao, L.; Biegalski, M. D.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Bowden, M. E.; Varga, T.; Shutthanandan, V.; Colby, R.; Du, Y.; Kabius, B.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA.
[Sushko, P. V.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Sushko, P. V.] UCL, London Ctr Nanotechnol, London WC1E 6BT, England.
RP Qiao, L (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99354 USA.
EM sa.chambers@pnnl.gov
RI Qiao, Liang/A-8165-2012; Zhang, Kelvin/F-5434-2014; Sushko,
Peter/F-5171-2013
OI Sushko, Peter/0000-0001-7338-4146
FU U.S. Department of Energy, Office of Science, Division of Materials
Sciences and Engineering [10122]; Division of Chemical Sciences [48526];
EMSL William Wiley Postdoctoral Fellow program; Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy; Royal Society; Department of Energy's Office of Biological and
Environmental Research
FX This work was supported by the U.S. Department of Energy, Office of
Science, Division of Materials Sciences and Engineering under Award
#10122 (MBE growth and XPS measurements), Division of Chemical Sciences
under Award #48526 (XPS analysis and RBS measurements and analysis), and
the EMSL William Wiley Postdoctoral Fellow program (TEM analysis). A
portion of this research was conducted at the Center for Nanophase
Materials Sciences, which is sponsored at Oak Ridge National Laboratory
by the Scientific User Facilities Division, Office of Basic Energy
Sciences, U.S. Department of Energy. P.V.S. thanks the Royal Society for
the support. The work was performed in the Environmental Molecular
Sciences Laboratory, a national science user facility sponsored by the
Department of Energy's Office of Biological and Environmental Research
and located at Pacific Northwest National Laboratory.
NR 55
TC 19
Z9 19
U1 8
U2 112
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1616-301X
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD JUN 20
PY 2013
VL 23
IS 23
BP 2953
EP 2963
DI 10.1002/adfm.201202655
PG 11
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 164BD
UT WOS:000320382800006
ER
PT J
AU Kennea, JA
Burrows, DN
Kouveliotou, C
Palmer, DM
Gogus, E
Kaneko, Y
Evans, PA
Degenaar, N
Reynolds, MT
Miller, JM
Wijnands, R
Mori, K
Gehrels, N
AF Kennea, J. A.
Burrows, D. N.
Kouveliotou, C.
Palmer, D. M.
Gogus, E.
Kaneko, Y.
Evans, P. A.
Degenaar, N.
Reynolds, M. T.
Miller, J. M.
Wijnands, R.
Mori, K.
Gehrels, N.
TI SWIFT DISCOVERY OF A NEW SOFT GAMMA REPEATER, SGR J1745-29, NEAR
SAGITTARIUS A*
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE pulsars: general; pulsars: individual (SGR J1745-29); stars: neutron;
X-rays: bursts
ID X-RAY PULSARS; GALACTIC-CENTER; TELESCOPE; BURSTS; GRBS
AB Starting in 2013 February, Swift has been performing short daily monitoring observations of the G2 gas cloud near Sgr A* with the X-Ray Telescope to determine whether the cloud interaction leads to an increase in the flux from the Galactic center. On 2013 April 24 Swift detected an order of magnitude rise in the X-ray flux from the region near Sgr A*. Initially thought to be a flare from Sgr A*, the detection of a short hard X-ray burst from the same region by the Burst Alert Telescope suggested that the flare was from an unresolved new Soft Gamma Repeater, SGR J1745-29. Here we present the discovery of SGR J1745-29 by Swift, including analysis of data before, during, and after the burst. We find that the spectrum in the 0.3-10 keV range is well fit by an absorbed blackbody model with kT(BB) similar or equal to 1 keV and absorption consistent with previously measured values from the quiescent emission from Sgr A*, strongly suggesting that this source is at a similar distance. Only one SGR burst has been detected so far from the new source, and the persistent light curve shows little evidence of decay in approximately two weeks of monitoring after outburst. We discuss this light curve trend and compare it with those of other well covered SGR outbursts. We suggest that SGR J1745-29 belongs to an emerging subclass of magnetars characterized by low burst rates and prolonged steady X-ray emission one to two weeks after outburst onset.
C1 [Kennea, J. A.; Burrows, D. N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Kouveliotou, C.] NASA, George C Marshall Space Flight Ctr, Sci & Technol Off, Huntsville, AL 35812 USA.
[Palmer, D. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Gogus, E.; Kaneko, Y.] Sabanci Univ, TR-34956 Istanbul, Turkey.
[Evans, P. A.] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England.
[Degenaar, N.; Reynolds, M. T.; Miller, J. M.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Wijnands, R.] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1090 GE Amsterdam, Netherlands.
[Mori, K.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Gehrels, N.] NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA.
RP Kennea, JA (reprint author), Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
EM kennea@swift.psu.edu
FU NASA grant through the Swift Guest Investigator Program [NAS5-00135]
FX This work was supported by NASA grant NAS5-00135 through the Swift Guest
Investigator Program. This work made use of data supplied by the UK
Swift Science Data Centre at the University of Leicester. We acknowledge
the use of public data from the Swift data archive. This research has
made use of the XRT Data Analysis Software (XRTDAS) developed under the
responsibility of the ASI Science Data Center (ASDC), Italy.
NR 39
TC 45
Z9 45
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JUN 20
PY 2013
VL 770
IS 2
AR L24
DI 10.1088/2041-8205/770/2/L24
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 168MJ
UT WOS:000320709900008
ER
PT J
AU Shen, KJ
Guillochon, J
Foley, RJ
AF Shen, Ken J.
Guillochon, James
Foley, Ryan J.
TI CIRCUMSTELLAR ABSORPTION IN DOUBLE DETONATION TYPE Ia SUPERNOVAE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE binaries: close; novae, cataclysmic variables; nuclear reactions,
nucleosynthesis, abundances; supernovae: general; white dwarfs
ID ACCRETING WHITE-DWARFS; SODIUM-ABSORPTION; CLOSE BINARIES;
MASS-TRANSFER; EVOLUTION; MERGERS; NOVAE; STARS; GAS; APPROXIMATIONS
AB Upon formation, degenerate He core white dwarfs are surrounded by a radiative H-rich layer primarily supported by ideal gas pressure. In this Letter, we examine the effect of this H-rich layer on mass transfer in He+C/O double white dwarf binaries that will eventually merge and possibly yield a Type Ia supernova (SN Ia) in the double detonation scenario. Because its thermal profile and equation of state differ from the underlying He core, the H-rich layer is transferred stably onto the C/O white dwarf prior to the He core's tidal disruption. We find that this material is ejected from the binary system and sweeps up the surrounding interstellar medium hundreds to thousands of years before the SN Ia. The close match between the resulting circumstellar medium profiles and values inferred from recent observations of circumstellar absorption in SNe Ia gives further credence to the resurgent double detonation scenario.
C1 [Shen, Ken J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Shen, Ken J.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[Shen, Ken J.] Univ Calif Berkeley, Theoret Astrophys Ctr, Berkeley, CA 94720 USA.
[Guillochon, James] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Foley, Ryan J.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Shen, KJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM kenshen@astro.berkeley.edu
OI Guillochon, James/0000-0002-9809-8215
FU NASA through Einstein Postdoctoral Fellowship [PF1-120088]; Chandra
X-ray Center; NASA [NAS8-03060]
FX We thank Jason Dexter, Dan Kasen, Rodolfo Perez, Eliot Quataert, Cody
Raskin, and Jeff Silverman for discussions. K.J.S. is supported by NASA
through Einstein Postdoctoral Fellowship grant number PF1-120088 awarded
by the Chandra X-ray Center, which is operated by the Smithsonian
Astrophysical Observatory for NASA under contract NAS8-03060.
NR 46
TC 47
Z9 47
U1 1
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JUN 20
PY 2013
VL 770
IS 2
AR L35
DI 10.1088/2041-8205/770/2/L35
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 168MJ
UT WOS:000320709900019
ER
PT J
AU Allan, MP
Tamai, A
Rozbicki, E
Fischer, MH
Voss, J
King, PDC
Meevasana, W
Thirupathaiah, S
Rienks, E
Fink, J
Tennant, DA
Perry, RS
Mercure, JF
Wang, MA
Lee, J
Fennie, CJ
Kim, EA
Lawler, MJ
Shen, KM
Mackenzie, AP
Shen, ZX
Baumberger, F
AF Allan, M. P.
Tamai, A.
Rozbicki, E.
Fischer, M. H.
Voss, J.
King, P. D. C.
Meevasana, W.
Thirupathaiah, S.
Rienks, E.
Fink, J.
Tennant, D. A.
Perry, R. S.
Mercure, J. F.
Wang, M. A.
Lee, Jinho
Fennie, C. J.
Kim, E-A
Lawler, M. J.
Shen, K. M.
Mackenzie, A. P.
Shen, Z-X
Baumberger, F.
TI Formation of heavy d-electron quasiparticles in Sr3Ru2O7
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
ID RUTHENATE SR3RU2O7
AB The phase diagram of Sr3Ru2O7 shows hallmarks of strong electron correlations despite the modest Coulomb interaction in the Ru 4d shell. We use angle-resolved photoelectron spectroscopy measurements to provide microscopic insight into the formation of the strongly renormalized heavy d-electron liquid that controls the physics of Sr3Ru2O7. Our data reveal itinerant Ru 4d-states confined over large parts of the Brillouin zone to an energy range of <6 meV, nearly three orders of magnitude lower than the bare band width. We show that this energy scale agrees quantitatively with a characteristic thermodynamic energy scale associated with quantum criticality and illustrate how it arises from a combination of back-folding due to a structural distortion and the hybridization of light and strongly renormalized, heavy quasiparticle bands. The resulting heavy Fermi liquid has a marked k-dependence of the renormalization which we relate to orbital mixing along individual Fermi surface sheets.
C1 [Allan, M. P.; Tamai, A.; Rozbicki, E.; King, P. D. C.; Meevasana, W.; Perry, R. S.; Mercure, J. F.; Mackenzie, A. P.; Baumberger, F.] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland.
[Allan, M. P.; Fischer, M. H.; Wang, M. A.; Lee, Jinho; Kim, E-A; Lawler, M. J.; Shen, K. M.] Cornell Univ, Dept Phys, LASSP, Ithaca, NY 14853 USA.
[Voss, J.; Fennie, C. J.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA.
[Meevasana, W.] Suranaree Univ Technol, Sch Phys, Nakhon Ratchasima 30000, Thailand.
[Thirupathaiah, S.; Rienks, E.; Fink, J.] Elektronenspeicherring BESSY II, Helmholtz Zentrum Berlin, D-12489 Berlin, Germany.
[Fink, J.] IFW Dresden, D-01171 Dresden, Germany.
[Tennant, D. A.] Helmholtz Zentrum Berlin, D-14109 Berlin, Germany.
[Lee, Jinho] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea.
[Lawler, M. J.] SUNY Binghamton, Dept Phys, Binghamton, NY 13902 USA.
[Shen, Z-X] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
[Shen, Z-X] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA.
RP Allan, MP (reprint author), Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland.
EM milan.allan@gmail.com
RI Fischer, Mark/K-2548-2013; Tennant, David/Q-2497-2015; Allan,
Milan/D-7763-2012; Fink, Joerg/A-6003-2012; Baumberger,
Felix/A-5170-2008; Tamai, Anna/B-9219-2014; King, Philip/D-3809-2014;
Mackenzie, Andrew/K-6742-2015; Lawler, Michael/K-6770-2012
OI Fischer, Mark/0000-0003-0810-6064; Tennant, David/0000-0002-9575-3368;
Allan, Milan/0000-0002-5437-1945; Mercure,
Jean-Francois/0000-0003-2620-9200; Baumberger,
Felix/0000-0001-7104-7541; Tamai, Anna/0000-0001-5239-6826; King,
Philip/0000-0002-6523-9034; Lawler, Michael/0000-0002-2319-2274
FU European Research Council; Scottish Funding Council; UK EPSRC; Cornell
Center for Materials Research; NSF MRSEC program [DMR-1120296]; ETH
Fellowship
FX We gratefully acknowledge discussions with A Georges, M S Golden, R G
Hennig, C Hooley, J Mravlje, A W Rost, S C Sundar and J Zaanen. This
work has been supported by the European Research Council, the Scottish
Funding Council and the UK EPSRC. SSRL is operated by the DOE's office
of Basic Energy Science. Work by MHF, E-AK, KMS, CJF and JV was
supported by the Cornell Center for Materials Research with funding from
the NSF MRSEC program (DMR-1120296). Work by MPA during the write-up of
this paper was supported by an ETH Fellowship.
NR 41
TC 6
Z9 6
U1 1
U2 48
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1367-2630
J9 NEW J PHYS
JI New J. Phys.
PD JUN 20
PY 2013
VL 15
AR 063029
DI 10.1088/1367-2630/15/6/063029
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 168IG
UT WOS:000320698500003
ER
PT J
AU Bzdak, A
Schenke, B
Tribedy, P
Venugopalan, R
AF Bzdak, Adam
Schenke, Bjoern
Tribedy, Prithwish
Venugopalan, Raju
TI Initial-state geometry and the role of hydrodynamics in proton-proton,
proton-nucleus, and deuteron-nucleus collisions
SO PHYSICAL REVIEW C
LA English
DT Article
ID HEAVY-ION COLLISIONS; GLUON DISTRIBUTION-FUNCTIONS; P-PB COLLISIONS;
HIGH-ENERGIES; ANGULAR-CORRELATIONS; PPB COLLISIONS; ELLIPTIC FLOW;
LONG-RANGE; SIDE; MULTIPLICITY
AB We apply the successful Monte Carlo Glauber and IP-Glasma initial-state models of heavy-ion collisions to the much smaller size systems produced in proton-proton, proton-nucleus, and deuteron-nucleus collisions. We observe a significantly greater sensitivity of the initial-state geometry to details of multiparticle production in these models compared to nucleus-nucleus collisions. In particular, we find that the size of the system produced in p + A collisions is very similar to the one produced in p + p collisions and predict comparable Hanbury-Brown-Twiss radii in the absence of flow in both systems. Differences in the eccentricities computed in the models are large, while differences among the generated flow coefficients upsilon(2) and upsilon(3) are smaller. For a large number of participants in proton-lead collisions, the upsilon(2) generated in the IP-Glasma model is comparable to the value obtained in proton-proton collisions. Viscous corrections to flow are large over characteristic lifetimes in the smaller size systems. In contrast, viscous contributions are significantly diminished over the longer space-time evolution of a heavy-ion collision.
C1 [Bzdak, Adam] RIKEN, Brookhaven Natl Lab, BNL Res Ctr, Upton, NY 11973 USA.
[Schenke, Bjoern; Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Tribedy, Prithwish] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
RP Bzdak, A (reprint author), RIKEN, Brookhaven Natl Lab, BNL Res Ctr, Upton, NY 11973 USA.
FU RIKEN-BNL Research Center; DOE [DE-AC02-98CH10886]
FX We thank Adrian Dumitru, Kevin Dusling, Larry McLerran, Jamie Nagle, Zhi
Qiu, Anne Sickles, and Derek Teaney for interesting discussions. A. B.
is supported through the RIKEN-BNL Research Center. B. P. S. and R. V.
are supported under DOE Contract No. DE-AC02-98CH10886.
NR 63
TC 112
Z9 112
U1 0
U2 16
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 20
PY 2013
VL 87
IS 6
AR 064906
DI 10.1103/PhysRevC.87.064906
PG 10
WC Physics, Nuclear
SC Physics
GA 169FH
UT WOS:000320763700004
ER
PT J
AU Bousso, R
AF Bousso, Raphael
TI Complementarity is not enough
SO PHYSICAL REVIEW D
LA English
DT Article
ID BLACK-HOLES; ENTROPY
AB The near-horizon field B of an old black hole is maximally entangled with the early Hawking radiation R, by unitarity of the S-matrix. But B must be maximally entangled with the black hole interior A, by the equivalence principle. Causal patch complementarity fails to reconcile these conflicting requirements. The system B can be probed by a freely falling observer while there is still time to turn around and remain outside the black hole. Therefore, the entangled state of the BR system is dictated by unitarity even in the infalling patch. If, by monogamy of entanglement, B is not entangled with A, the horizon is replaced by a singularity or "firewall." To illustrate the radical nature of the ideas that are needed, I briefly discuss two approaches for avoiding a firewall: the identification of A with a subsystem of R; and a combination of patch complementarity with the Horowitz-Maldacena final-state proposal.
C1 [Bousso, Raphael] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Bousso, Raphael] Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA.
[Bousso, Raphael] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Bousso, R (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
FU Berkeley Center for Theoretical Physics; National Science Foundation
[0855653, 0756174]; fqxi Grant [RFP3-1004]; U.S. Department of Energy
[DE-AC02-05CH11231]
FX I would like to thank B. Freivogel, D. Harlow, P. Hayden, J. Maldacena,
D. Marolf, J. Polchinski, J. Preskill, V. Rosenhaus, D. Stanford, L.
Susskind, and R. Wald for many discussions, comments, and explanations.
This work was supported by the Berkeley Center for Theoretical Physics,
by the National Science Foundation (Awards No. 0855653 and No. 0756174),
by fqxi Grant No. RFP3-1004, and by the U.S. Department of Energy under
Contract No. DE-AC02-05CH11231.
NR 45
TC 44
Z9 44
U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 20
PY 2013
VL 87
IS 12
AR 124023
DI 10.1103/PhysRevD.87.124023
PG 7
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 169FS
UT WOS:000320765300007
ER
PT J
AU Anand, VK
Kim, H
Tanatar, MA
Prozorov, R
Johnston, DC
AF Anand, V. K.
Kim, H.
Tanatar, M. A.
Prozorov, R.
Johnston, D. C.
TI Superconducting and normal-state properties of APd(2)As(2) (A = Ca, Sr,
Ba) single crystals
SO PHYSICAL REVIEW B
LA English
DT Article
ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; HIGH-FIELD SUPERCONDUCTORS;
MAGNETIC-SUSCEPTIBILITY; PURITY DEPENDENCE; PENETRATION DEPTH;
TRANSITION; PNICTIDES; METALS; HC2
AB The synthesis and crystallography, magnetic susceptibility chi, magnetization M, specific heat C-p, in-plane electrical resistivity rho, and in-plane magnetic penetration depth measurements are reported for single crystals of APd(2)As(2) (A = Ca, Sr, Ba) versus temperature T and magnetic field H. The crystals were grown using PdAs self-flux. CaPd2As2 and SrPd2As2 crystallize in a collapsed body-centered tetragonal ThCr2Si2-type structure (I4/mmm), whereas BaPd2As2 crystallizes in the primitive tetragonal CeMg2Si2-type structure (P4/mmm), in agreement with literature data. The rho(T) data exhibit metallic behavior for all three compounds. Bulk superconductivity is reported for CaPd2As2 and SrPd2As2 below T-c = 1.27 and 0.92 K, respectively, whereas only a trace of superconductivity is found in BaPd2As2. No other phase transitions were observed. The chi(T) and M(H) data reveal anisotropic diamagnetism in the normal state, with chi(c) > chi(ab) for CaPd2As2 and BaPd2As2, and chi(c) < chi(ab) for SrPd2As2. The normal and superconducting state data indicate that CaPd2As2 and SrPd2As2 are conventional type-II nodeless s-wave electron-phonon superconductors. The electronic superconducting state heat capacity data for CaPd2As2, which has an extremely sharp heat capacity jump at T-c, are analyzed using our recent elaboration of the alpha-model of the BCS theory of superconductivity, which indicates that the s-wave gap in this compound is anisotropic in momentum space.
C1 [Anand, V. K.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Anand, VK (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM vanand@ameslab.gov; johnston@ameslab.gov
RI Anand, Vivek Kumar/J-3381-2013
OI Anand, Vivek Kumar/0000-0003-2023-7040
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering; U.S. Department of Energy by Iowa
State University [DE-AC02-07CH11358]
FX This research was supported by the U.S. Department of Energy, Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering.
Ames Laboratory is operated for the U.S. Department of Energy by Iowa
State University under Contract No. DE-AC02-07CH11358.
NR 81
TC 26
Z9 26
U1 6
U2 61
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 20
PY 2013
VL 87
IS 22
AR 224510
DI 10.1103/PhysRevB.87.224510
PG 22
WC Physics, Condensed Matter
SC Physics
GA 169ET
UT WOS:000320761700004
ER
PT J
AU Louca, D
Park, K
Li, B
Neuefeind, J
Yan, JQ
AF Louca, Despina
Park, Keeseong
Li, Bing
Neuefeind, Joerg
Yan, Jiaqiang
TI The hybrid lattice of KxFe2-ySe2: where superconductivity and magnetism
coexist
SO SCIENTIFIC REPORTS
LA English
DT Article
ID DENSITY-WAVE; ORDER
AB Much remains unknown of the microscopic origin of superconductivity in atomically disordered systems of amorphous alloys or in crystals riddled with defects. A manifestation of this conundrum is envisaged in the highly defective superconductor of KxFe2-ySe2. How can superconductivity survive under such crude conditions that call for strong electron localization? Here, we show that the Fe sublattice is locally distorted and accommodates two kinds of Fe valence environments giving rise to a bimodal bond-distribution, with short and long Fe bonds. The bimodal bonds are present even as the system becomes superconducting in the presence of antiferromagnetism, with the weight continuously shifting from the short to the long with increasing K content. Such a hybrid state is most likely found in cuprates as well while our results point to the importance of the local atomic symmetry by which exchange interactions between local moments materialize.
C1 [Louca, Despina; Park, Keeseong; Li, Bing] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
[Neuefeind, Joerg; Yan, Jiaqiang] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Yan, Jiaqiang] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Louca, D (reprint author), Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
EM louca@virginia.edu
RI Neuefeind, Joerg/D-9990-2015; Li, Bing /A-4610-2010
OI Neuefeind, Joerg/0000-0002-0563-1544;
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-FG02-01ER45927]
FX The work at the University of Virginia has been supported by the U.S.
Department of Energy, Office of Basic Energy Sciences, under contract
number DE-FG02-01ER45927.
NR 31
TC 14
Z9 14
U1 2
U2 20
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 20
PY 2013
VL 3
AR UNSP 2047
DI 10.1038/srep02047
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 167QT
UT WOS:000320648300001
PM 23782976
ER
PT J
AU Aliu, E
Archambault, S
Arlen, T
Aune, T
Beilicke, M
Benbow, W
Bird, R
Bouvier, A
Bradbury, SM
Buckley, JH
Bugaev, V
Byrum, K
Cannon, A
Cesarini, A
Ciupik, L
Collins-Hughes, E
Connolly, MP
Cui, W
Dickherber, R
Duke, C
Dumm, J
Dwarkadas, VV
Errando, M
Falcone, A
Federici, S
Feng, Q
Finley, JP
Finnegan, G
Fortson, L
Furniss, A
Galante, N
Gall, D
Gillanders, GH
Godambe, S
Gotthelf, EV
Griffin, S
Grube, J
Gyuk, G
Hanna, D
Holder, J
Huan, H
Hughes, G
Humensky, TB
Kaaret, P
Karlsson, N
Kertzman, M
Khassen, Y
Kieda, D
Krawczynski, H
Krennrich, F
Lang, MJ
Lee, K
Madhavan, AS
Maier, G
Majumdar, P
McArthur, S
McCann, A
Millis, J
Moriarty, P
Mukherjee, R
Nelson, T
de Bhroithe, AO
Ong, RA
Orr, M
Otte, AN
Pandel, D
Park, N
Perkins, JS
Pohl, M
Popkow, A
Prokoph, H
Quinn, J
Ragan, K
Reyes, LC
Reynolds, PT
Roache, E
Rose, HJ
Ruppel, J
Saxon, DB
Schroedter, M
Sembroski, GH
Senturk, GD
Skole, C
Telezhinsky, I
Tesic, G
Theiling, M
Thibadeau, S
Tsurusaki, K
Tyler, J
Varlotta, A
Vassiliev, VV
Vincent, S
Wakely, SP
Ward, JE
Weekes, TC
Weinstein, A
Weisgarber, T
Welsing, R
Williams, DA
Zitzer, B
AF Aliu, E.
Archambault, S.
Arlen, T.
Aune, T.
Beilicke, M.
Benbow, W.
Bird, R.
Bouvier, A.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
Byrum, K.
Cannon, A.
Cesarini, A.
Ciupik, L.
Collins-Hughes, E.
Connolly, M. P.
Cui, W.
Dickherber, R.
Duke, C.
Dumm, J.
Dwarkadas, V. V.
Errando, M.
Falcone, A.
Federici, S.
Feng, Q.
Finley, J. P.
Finnegan, G.
Fortson, L.
Furniss, A.
Galante, N.
Gall, D.
Gillanders, G. H.
Godambe, S.
Gotthelf, E. V.
Griffin, S.
Grube, J.
Gyuk, G.
Hanna, D.
Holder, J.
Huan, H.
Hughes, G.
Humensky, T. B.
Kaaret, P.
Karlsson, N.
Kertzman, M.
Khassen, Y.
Kieda, D.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
Lee, K.
Madhavan, A. S.
Maier, G.
Majumdar, P.
McArthur, S.
McCann, A.
Millis, J.
Moriarty, P.
Mukherjee, R.
Nelson, T.
de Bhroithe, A. O'Faolain
Ong, R. A.
Orr, M.
Otte, A. N.
Pandel, D.
Park, N.
Perkins, J. S.
Pohl, M.
Popkow, A.
Prokoph, H.
Quinn, J.
Ragan, K.
Reyes, L. C.
Reynolds, P. T.
Roache, E.
Rose, H. J.
Ruppel, J.
Saxon, D. B.
Schroedter, M.
Sembroski, G. H.
Sentuerk, G. D.
Skole, C.
Telezhinsky, I.
Tesic, G.
Theiling, M.
Thibadeau, S.
Tsurusaki, K.
Tyler, J.
Varlotta, A.
Vassiliev, V. V.
Vincent, S.
Wakely, S. P.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Weisgarber, T.
Welsing, R.
Williams, D. A.
Zitzer, B.
TI DISCOVERY OF TeV GAMMA-RAY EMISSION TOWARD SUPERNOVA REMNANT SNR
G78.2+2.1
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; cosmic rays; gamma rays: general; ISM:
supernova remnants
ID PARTICLE-ACCELERATION; FERMI; HESS; SEARCH; COUNTERPART; 2CG078+2;
CATALOG; ORIGIN
AB We report the discovery of an unidentified, extended source of very-high-energy gamma-ray emission, VER J2019+407, within the radio shell of the supernova remnant SNR G78.2+2.1, using 21.4 hr of data taken by the VERITAS gamma-ray observatory in 2009. These data confirm the preliminary indications of gamma-ray emission previously seen in a two-year (2007-2009) blind survey of the Cygnus region by VERITAS. VER J2019+407, which is detected at a post-trials significance of 7.5 standard deviations in the 2009 data, is localized to the northwestern rim of the remnant in a region of enhanced radio and X-ray emission. It has an intrinsic extent of 0 degrees.23 +/- 0 degrees.03(stat-0 degrees.02sys)(+0 degrees.04) and its spectrum is well-characterized by a differential power law (dN/dE = N-0 x (E/TeV)-Gamma) with a photon index of Gamma = 2.37 +/- 0.14(stat) +/- 0.20(sys) and a flux normalization of N-0 = 1.5 +/- 0.2(stat) +/- 0.4(sys) x 10(-12) photon TeV-1 cm(-2) s(-1). This yields an integral flux of 5.2 +/- 0.8(stat) +/- 1.4(sys) x 10(-12) photon cm(-2) s(-1) above 320 GeV, corresponding to 3.7% of the Crab Nebula flux. We consider the relationship of the TeV gamma-ray emission with the GeV gamma-ray emission seen from SNR G78.2+2.1 as well as that seen from a nearby cocoon of freshly accelerated cosmic rays. Multiple scenarios are considered as possible origins for the TeV gamma-ray emission, including hadronic particle acceleration at the SNR shock.
C1 [Aliu, E.; Errando, M.; Mukherjee, R.] Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
[Archambault, S.; Griffin, S.; Hanna, D.; Ragan, K.; Tesic, G.; Tyler, J.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Arlen, T.; Aune, T.; Majumdar, P.; Ong, R. A.; Popkow, A.; Vassiliev, V. V.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R.; Krawczynski, H.; Lee, K.; Thibadeau, S.; Ward, J. E.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Benbow, W.; Galante, N.; Roache, E.; Schroedter, M.; Weekes, T. C.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
[Bird, R.; Cannon, A.; Collins-Hughes, E.; Khassen, Y.; de Bhroithe, A. O'Faolain; Quinn, J.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[Bouvier, A.; Furniss, A.; Williams, D. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Bouvier, A.; Furniss, A.; Williams, D. A.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Bradbury, S. M.; Rose, H. J.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Byrum, K.; Zitzer, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Cesarini, A.; Connolly, M. P.; Gillanders, G. H.; Lang, M. J.] Natl Univ Ireland Galway, Sch Phys, Galway, Ireland.
[Ciupik, L.; Grube, J.; Gyuk, G.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA.
[Cui, W.; Feng, Q.; Finley, J. P.; Sembroski, G. H.; Theiling, M.; Varlotta, A.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Duke, C.] Grinnell Coll, Dept Phys, Grinnell, IA 50112 USA.
[Dumm, J.; Fortson, L.; Karlsson, N.; Nelson, T.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Dwarkadas, V. V.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Falcone, A.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA.
[Federici, S.; Hughes, G.; Maier, G.; Pohl, M.; Prokoph, H.; Ruppel, J.; Skole, C.; Telezhinsky, I.; Vincent, S.; Welsing, R.] DESY, D-15738 Zeuthen, Germany.
[Federici, S.; Pohl, M.; Ruppel, J.; Telezhinsky, I.] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany.
[Finnegan, G.; Godambe, S.; Kieda, D.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.
[Gall, D.; Kaaret, P.; Tsurusaki, K.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Gotthelf, E. V.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Holder, J.; Saxon, D. B.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Holder, J.; Saxon, D. B.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Huan, H.; McArthur, S.; Park, N.; Wakely, S. P.; Weisgarber, T.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Humensky, T. B.; Sentuerk, G. D.] Columbia Univ, Dept Phys, New York, NY 10027 USA.
[Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA.
[Krennrich, F.; Madhavan, A. S.; Orr, M.; Weinstein, A.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Majumdar, P.] Saha Inst Nucl Phys, Kolkata 700064, India.
[McCann, A.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Millis, J.] Anderson Univ, Dept Phys, Anderson, IN 46012 USA.
[Moriarty, P.] Galway Mayo Inst Technol, Dept Life & Phys Sci, Galway, Ireland.
[Otte, A. N.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Otte, A. N.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
[Pandel, D.] Grand Valley State Univ, Dept Phys, Allendale, MI 49401 USA.
[Perkins, J. S.] NASA GSFC, CRESST, Greenbelt, MD 20771 USA.
[Perkins, J. S.] NASA GSFC, Astroparticle Phys Lab, Greenbelt, MD 20771 USA.
[Perkins, J. S.] Univ Maryland, Baltimore, MD 21250 USA.
[Reyes, L. C.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 94307 USA.
[Reynolds, P. T.] Cork Inst Technol, Dept Appl Phys & Instrumentat, Cork, Ireland.
RP Aliu, E (reprint author), Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
EM amandajw@iastate.edu
RI Khassen, Yerbol/I-3806-2015;
OI Khassen, Yerbol/0000-0002-7296-3100; Cui, Wei/0000-0002-6324-5772;
Cesarini, Andrea/0000-0002-8611-8610; Ward, John E/0000-0003-1973-0794;
Pandel, Dirk/0000-0003-2085-5586; Lang, Mark/0000-0003-4641-4201; Bird,
Ralph/0000-0002-4596-8563
FU U.S. Department of Energy Office of Science; U.S. National Science
Foundation; Smithsonian Institution; NSERC in Canada; Science Foundation
Ireland [SFI 10/RFP/AST2748]; Science and Technology Facilities Council
in the UK; NASA [NNX11A086G]
FX This research is supported by grants from the U.S. Department of Energy
Office of Science, the U.S. National Science Foundation and the
Smithsonian Institution, by NSERC in Canada, by the Science Foundation
Ireland (SFI 10/RFP/AST2748) and by the Science and Technology
Facilities Council in the UK. We acknowledge the excellent work of the
technical support staff at the Fred Lawrence Whipple Observatory and at
the collaborating institutions in the construction and operation of the
instrument. Dr. Weinstein and Dr. Dwarkadas' research was also supported
in part by NASA grant NNX11A086G.
NR 35
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Z9 17
U1 0
U2 8
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR 93
DI 10.1088/0004-637X/770/2/93
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200011
ER
PT J
AU Bodenheimer, P
D'Angelo, G
Lissauer, JJ
Fortney, JJ
Saumon, D
AF Bodenheimer, Peter
D'Angelo, Gennaro
Lissauer, Jack J.
Fortney, Jonathan J.
Saumon, Didier
TI DEUTERIUM BURNING IN MASSIVE GIANT PLANETS AND LOW-MASS BROWN DWARFS
FORMED BY CORE-NUCLEATED ACCRETION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE accretion, accretion disks; brown dwarfs; planets and satellites:
formation; planets and satellites: individual (beta Pictoris b); planets
and satellites: physical evolution
ID PROTOPLANETARY ATMOSPHERES; BETA-PICTORIS; HR 8799; EVOLUTION; JUPITER;
MODELS; OPACITIES; GRAINS; DISKS; GAS
AB Using detailed numerical simulations, we study the formation of bodies near the deuterium-burning limit according to the core-nucleated giant planet accretion scenario. The objects, with heavy-element cores in the range 5-30 M-circle plus, are assumed to accrete gas up to final masses of 10-15 Jupiter masses (M-Jup). After the formation process, which lasts 1-5 Myr and which ends with a "cold-start," low-entropy configuration, the bodies evolve at constant mass up to an age of several Gyr. Deuterium burning via proton capture is included in the calculation, and we determined the mass, M-50, above which more than 50% of the initial deuterium is burned. This often-quoted borderline between giant planets and brown dwarfs is found to depend only slightly on parameters, such as core mass, stellar mass, formation location, solid surface density in the protoplanetary disk, disk viscosity, and dust opacity. The values for M-50 fall in the range 11.6-13.6 M-Jup, in agreement with previous determinations that do not take the formation process into account. For a given opacity law during the formation process, objects with higher core masses form more quickly. The result is higher entropy in the envelope at the completion of accretion, yielding lower values of M-50. For masses above M-50, during the deuterium-burning phase, objects expand and increase in luminosity by one to three orders of magnitude. Evolutionary tracks in the luminosity versus time diagram are compared with the observed position of the companion to Beta Pictoris.
C1 [Bodenheimer, Peter] Univ Calif Santa Cruz, Dept Astron & Astrophys, UCO Lick Observ, Santa Cruz, CA 95064 USA.
[D'Angelo, Gennaro; Lissauer, Jack J.] NASA, Ames Res Ctr, Space Sci & Astrobiol Div, Moffett Field, CA 94035 USA.
[Fortney, Jonathan J.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Saumon, Didier] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[D'Angelo, Gennaro] SETI Inst, Mountain View, CA 94043 USA.
RP Bodenheimer, P (reprint author), Univ Calif Santa Cruz, Dept Astron & Astrophys, UCO Lick Observ, Santa Cruz, CA 95064 USA.
EM peter@ucolick.org; gennaro.dangelo@nasa.gov; Jack.J.Lissauer@nasa.gov;
jfortney@ucolick.org; dsaumon@lanl.gov
RI D'Angelo, Gennaro/L-7676-2014;
OI D'Angelo, Gennaro/0000-0002-2064-0801; Fortney,
Jonathan/0000-0002-9843-4354
FU NASA [NNX11AK54G, NNX11AD20G, NNH11AQ54I, NNH12AT89I]; NSF [AST0908807]
FX Primary funding for this project was provided by the NASA Origins of
Solar Systems Program grant NNX11AK54G (P.B., G.D., J.L.). G.D.
acknowledges additional support from NASA grant NNX11AD20G. P.B.
acknowledges additional support from NSF grant AST0908807. D.S. is
supported in part by NASA grants NNH11AQ54I and NNH12AT89I. The authors
are indebted to Gilles Chabrier for the use of his nuclear screening
factors. The 3D hydrodynamical simulations reported in this work were
performed using resources provided by the NASA High-End Computing (HEC)
Program through the NASA Advanced Supercomputing (NAS) Division at Ames
Research Center. G.D. thanks Los Alamos National Laboratory for its
hospitality. The authors thank the referee Dr. Christoph Mordasini for a
detailed and constructive review.
NR 54
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U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR 120
DI 10.1088/0004-637X/770/2/120
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200038
ER
PT J
AU Childress, M
Aldering, G
Antilogus, P
Aragon, C
Bailey, S
Baltay, C
Bongard, S
Buton, C
Canto, A
Cellier-Holzem, F
Chotard, N
Copin, Y
Fakhouri, HK
Gangler, E
Guy, J
Hsiao, EY
Kerschhaggl, M
Kim, AG
Kowalski, M
Loken, S
Nugent, P
Paech, K
Pain, R
Pecontal, E
Pereira, R
Perlmutter, S
Rabinowitz, D
Rigault, M
Runge, K
Scalzo, R
Smadja, G
Tao, C
Thomas, RC
Weaver, BA
Wu, C
AF Childress, M.
Aldering, G.
Antilogus, P.
Aragon, C.
Bailey, S.
Baltay, C.
Bongard, S.
Buton, C.
Canto, A.
Cellier-Holzem, F.
Chotard, N.
Copin, Y.
Fakhouri, H. K.
Gangler, E.
Guy, J.
Hsiao, E. Y.
Kerschhaggl, M.
Kim, A. G.
Kowalski, M.
Loken, S.
Nugent, P.
Paech, K.
Pain, R.
Pecontal, E.
Pereira, R.
Perlmutter, S.
Rabinowitz, D.
Rigault, M.
Runge, K.
Scalzo, R.
Smadja, G.
Tao, C.
Thomas, R. C.
Weaver, B. A.
Wu, C.
TI HOST GALAXY PROPERTIES AND HUBBLE RESIDUALS OF TYPE Ia SUPERNOVAE FROM
THE NEARBY SUPERNOVA FACTORY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE dark energy; supernovae: general
ID DIGITAL SKY SURVEY; INITIAL MASS FUNCTION; STAR-FORMING GALAXIES;
LIGHT-CURVE SHAPES; STELLAR POPULATION SYNTHESIS; HIGH-REDSHIFT
SUPERNOVAE; OR-EQUAL-TO; METALLICITY RELATION; SPACE-TELESCOPE;
DARK-ENERGY
AB We examine the relationship between Type Ia supernova (SN Ia) Hubble residuals and the properties of their host galaxies using a sample of 115 SNe Ia from the Nearby Supernova Factory. We use host galaxy stellar masses and specific star formation rates fitted from photometry for all hosts, as well as gas-phase metallicities for a subset of 69 star-forming (non-active galactic nucleus) hosts, to show that the SN Ia Hubble residuals correlate with each of these host properties. With these data we find new evidence for a correlation between SN Ia intrinsic color and host metallicity. When we combine our data with those of other published SN Ia surveys, we find the difference between mean SN Ia brightnesses in low- and high-mass hosts is 0.077 +/- 0.014 mag. When viewed in narrow (0.2 dex) bins of host stellar mass, the data reveal apparent plateaus of Hubble residuals at high and low host masses with a rapid transition over a short mass range (9.8 <= log(M*/M-circle dot) <= 10.4). Although metallicity has been a favored interpretation for the origin of the Hubble residual trend with host mass, we illustrate how dust in star-forming galaxies and mean SN Ia progenitor age both evolve along the galaxy mass sequence, thereby presenting equally viable explanations for some or all of the observed SN Ia host bias.
C1 [Childress, M.; Aldering, G.; Aragon, C.; Bailey, S.; Fakhouri, H. K.; Hsiao, E. Y.; Kim, A. G.; Loken, S.; Perlmutter, S.; Runge, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Childress, M.; Fakhouri, H. K.; Perlmutter, S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Childress, M.; Scalzo, R.] Australian Natl Univ, Mt Stromlo Observ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia.
[Antilogus, P.; Bongard, S.; Canto, A.; Cellier-Holzem, F.; Guy, J.; Pain, R.; Wu, C.] Univ Paris 07, Univ Paris 06, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris 05, France.
[Baltay, C.; Rabinowitz, D.] Yale Univ, Dept Phys, New Haven, CT 06250 USA.
[Buton, C.; Kerschhaggl, M.; Kowalski, M.; Paech, K.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] Univ Lyon, F-69622 Lyon, France.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] Univ Lyon 1, F-69622 Villeurbanne, France.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] CNRS, IN2P3, Inst Phys Nucl Lyon, F-75700 Paris, France.
[Nugent, P.; Thomas, R. C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Computat Res Div, Berkeley, CA 94720 USA.
[Pecontal, E.] Univ Lyon 1, Ctr Rech Astron Lyon, F-69561 St Genis Laval, France.
[Tao, C.] Aix Marseille Univ, Ctr Phys Particules Marseille, CNRS, IN2P3, F-13288 Marseille 09, France.
[Tao, C.] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.
[Weaver, B. A.] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA.
[Wu, C.] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China.
RP Childress, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Copin, Yannick/B-4928-2015; Perlmutter, Saul/I-3505-2015;
OI Copin, Yannick/0000-0002-5317-7518; Perlmutter,
Saul/0000-0002-4436-4661; Scalzo, Richard/0000-0003-3740-1214
FU NASA [NAS5-98034]; GALEX Archival Research Grant [08-GALEX508-0008];
Office of Science, Office of High Energy Physics, of the U.S. Department
of Energy [DE-AC02-05CH11231]; U.S. Department of Energy Scientific
Discovery through Advanced Computing (SciDAC) program
[DE-FG02-06ER06-04]; Gordon & Betty Moore Foundation; CNRS/IN2P3 France;
CNRS/INSU France; PNC France; DFG Germany [TRR33]; Henri Chretien
International Research Grant; France-Berkeley Fund; Explora'Doc Grant by
the Region Rhone Alpes; Office of Science, Office of Advanced Scientific
Computing Research, of the U.S. Department of Energy
[DE-AC02-05CH11231]; National Science Foundation [ANI-0087344];
University of California, San Diego; Australian Research Council Centre
of Excellence for All-sky Astrophysics (CAASTRO) [CE110001020]; W. M.
Keck Foundation; Alfred P. Sloan Foundation; U.S. Department of Energy
Office of Science
FX Based in part on observations made with the NASA Galaxy Evolution
Explorer. GALEX is operated from NASA by the California Institute of
Technology under NASA contract NAS5-98034. The authors graciously
acknowledge support from GALEX Archival Research Grant 08-GALEX508-0008
for program GI5-047 (PI: Aldering). This work was supported by the
Director, Office of Science, Office of High Energy Physics, of the U.S.
Department of Energy under contract No. DE-AC02-05CH11231; the U.S.
Department of Energy Scientific Discovery through Advanced Computing
(SciDAC) program under contract No. DE-FG02-06ER06-04; by a grant from
the Gordon & Betty Moore Foundation; in France by support from
CNRS/IN2P3, CNRS/INSU, and PNC; and in Germany by the DFG through TRR33
"The Dark Universe." Funding was also provided by a Henri Chretien
International Research Grant administrated by the American Astronomical
Society; the France-Berkeley Fund; and by an Explora'Doc Grant by the
Region Rhone Alpes. This research used resources of the National Energy
Research Scientific Computing Center, which is supported by the
Director, Office of Science, Office of Advanced Scientific Computing
Research, of the U.S. Department of Energy under contract No.
DE-AC02-05CH11231. We thank them for a generous allocation of storage
and computing time. HPWREN is funded by National Science Foundation
Grant Number ANI-0087344, and the University of California, San Diego.
Part of this research was conducted by the Australian Research Council
Centre of Excellence for All-sky Astrophysics (CAASTRO), through project
number CE110001020.; The authors would like to thank the excellent
technical and scientific staff at the many observatories where data were
taken for this paper: the University of Hawaii 2.2 m telescope, Lick
Observatory, Keck Observatory, the Blanco 4 m telescope, the SOAR
telescope, and Gemini South. Some data presented herein were obtained at
the W. M. Keck Observatory, which is operated as a scientific
partnership among the California Institute of Technology, the University
of California, and the National Aeronautics and Space Administration;
the Observatory was made possible by the generous financial support of
the W. M. Keck Foundation. We wish to recognize and acknowledge the very
significant cultural role and reverence that the summit of Mauna Kea has
always had within the indigenous Hawaiian community, and we are
extremely grateful for the opportunity to conduct observations from this
mountain. We also thank Dan Birchall for assistance with SNIFS
observations. We are very grateful to David Rubin for providing SALT2.2
light curve fits to the CfA light curves in advance of the forthcoming
Union3 analysis. We also thank Josh Meyers and Dan Kasen for useful
discussions. We thank the anonymous referee who provided very helpful
comments. Some of the data analyzed here were obtained from the Sloan
Digital Sky Survey Eight Data Release (SDSS-III DR8). Funding for
SDSS-III has been provided by the Alfred P. Sloan Foundation, the
Participating Institutions, the National Science Foundation, and the
U.S. Department of Energy Office of Science. The SDSS-III Web site is
http://www.sdss3.org/. SDSS-III is managed by the Astrophysical Research
Consortium for the Participating Institutions of the SDSS-III
Collaboration including the University of Arizona, the Brazilian
Participation Group, Brookhaven National Laboratory, University of
Cambridge, Carnegie Mellon University, University of Florida, the French
Participation Group, the German Participation Group, Harvard University,
the Instituto de Astrofisica de Canarias, the Michigan State/Notre
Dame/JINA Participation Group, Johns Hopkins University, Lawrence
Berkeley National Laboratory, Max Planck Institute for Astrophysics, New
Mexico State University, New York University, Ohio State University,
Pennsylvania State University, University of Portsmouth, Princeton
University, the Spanish Participation Group, University of Tokyo,
University of Utah, Vanderbilt University, University of Virginia,
University of Washington, and Yale University.
NR 118
TC 41
Z9 41
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR UNSP 108
DI 10.1088/0004-637X/770/2/108
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200026
ER
PT J
AU Childress, M
Aldering, G
Antilogus, P
Aragon, C
Bailey, S
Baltay, C
Bongard, S
Buton, C
Canto, A
Cellier-Holzem, F
Chotard, N
Copin, Y
Fakhouri, HK
Gangler, E
Guy, J
Hsiao, EY
Kerschhaggl, M
Kim, AG
Kowalski, M
Loken, S
Nugent, P
Paech, K
Pain, R
Pecontal, E
Pereira, R
Perlmutter, S
Rabinowitz, D
Rigault, M
Runge, K
Scalzo, R
Smadja, G
Tao, C
Thomas, RC
Weaver, BA
Wu, C
AF Childress, M.
Aldering, G.
Antilogus, P.
Aragon, C.
Bailey, S.
Baltay, C.
Bongard, S.
Buton, C.
Canto, A.
Cellier-Holzem, F.
Chotard, N.
Copin, Y.
Fakhouri, H. K.
Gangler, E.
Guy, J.
Hsiao, E. Y.
Kerschhaggl, M.
Kim, A. G.
Kowalski, M.
Loken, S.
Nugent, P.
Paech, K.
Pain, R.
Pecontal, E.
Pereira, R.
Perlmutter, S.
Rabinowitz, D.
Rigault, M.
Runge, K.
Scalzo, R.
Smadja, G.
Tao, C.
Thomas, R. C.
Weaver, B. A.
Wu, C.
TI HOST GALAXIES OF TYPE Ia SUPERNOVAE FROM THE NEARBY SUPERNOVA FACTORY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE supernovae: general
ID DIGITAL SKY SURVEY; HUBBLE-SPACE-TELESCOPE; STAR-FORMING GALAXIES;
MASS-METALLICITY RELATION; DELAY-TIME DISTRIBUTION; STELLAR POPULATION
SYNTHESIS; HIGH-REDSHIFT SUPERNOVAE; DARK-ENERGY CONSTRAINTS; PHOTOMETRY
DATA RELEASE; LIGHT CURVES
AB We present photometric and spectroscopic observations of galaxies hosting Type Ia supernovae (SNe Ia) observed by the Nearby Supernova Factory. Combining Galaxy Evolution Explorer (GALEX) UV data with optical and near-infrared photometry, we employ stellar population synthesis techniques to measure SN Ia host galaxy stellar masses, star formation rates (SFRs), and reddening due to dust. We reinforce the key role of GALEX UV data in deriving accurate estimates of galaxy SFRs and dust extinction. Optical spectra of SN Ia host galaxies are fitted simultaneously for their stellar continua and emission lines fluxes, from which we derive high-precision redshifts, gas-phase metallicities, and Ha-based SFRs. With these data we show that SN Ia host galaxies present tight agreement with the fiducial galaxy mass-metallicity relation from Sloan Digital Sky Survey (SDSS) for stellar masses log(M*/M-circle dot) > 8.5 where the relation is well defined. The star formation activity of SN Ia host galaxies is consistent with a sample of comparable SDSS field galaxies, though this comparison is limited by systematic uncertainties in SFR measurements. Our analysis indicates that SN Ia host galaxies are, on average, typical representatives of normal field galaxies.
C1 [Childress, M.; Aldering, G.; Aragon, C.; Bailey, S.; Fakhouri, H. K.; Hsiao, E. Y.; Kim, A. G.; Loken, S.; Perlmutter, S.; Runge, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA.
[Childress, M.; Fakhouri, H. K.; Perlmutter, S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Childress, M.; Scalzo, R.] Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia.
[Antilogus, P.; Bongard, S.; Canto, A.; Cellier-Holzem, F.; Guy, J.; Pain, R.; Wu, C.] Univ Paris 07, Lab Phys Nucl & Hautes Energies, Univ Paris 06, CNRS,IN2P3, F-75252 Paris 05, France.
[Baltay, C.; Rabinowitz, D.] Yale Univ, Dept Phys, New Haven, CT 06250 USA.
[Buton, C.; Kerschhaggl, M.; Kowalski, M.; Paech, K.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] Univ Lyon, F-69622 Lyon, France.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] Univ Lyon 1, F-69622 Villeurbanne, France.
[Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Rigault, M.; Smadja, G.] CNRS, IN2P3, Inst Phys Nucl Lyon, F-75700 Paris, France.
[Nugent, P.; Thomas, R. C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Computat Res Div, Berkeley, CA 94720 USA.
[Pecontal, E.] Univ Lyon 1, Ctr Rech Astron Lyon, F-69561 St Genis Laval, France.
[Tao, C.] Aix Marseille Univ, Ctr Phys Particules Marseille, CNRS, IN2P3, F-13288 Marseille 09, France.
[Tao, C.] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China.
[Weaver, B. A.] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA.
[Wu, C.] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China.
RP Childress, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Copin, Yannick/B-4928-2015; Perlmutter, Saul/I-3505-2015;
OI Copin, Yannick/0000-0002-5317-7518; Perlmutter,
Saul/0000-0002-4436-4661; Scalzo, Richard/0000-0003-3740-1214
FU NASA [NAS5-98034]; GALEX Archival Research Grant [08-GALEX508-0008];
Office of Science, Office of High Energy Physics, of the U.S. Department
of Energy [DE-AC02-05CH11231]; U.S. Department of Energy Scientific
Discovery through Advanced Computing (SciDAC) program
[DE-FG02-06ER06-04]; Gordon & Betty Moore Foundation; CNRS/IN2P3 France;
CNRS/INSU France; PNC France; DFG Germany [TRR33]; Henri Chretien
International Research Grant; France-Berkeley Fund; Explora'Doc Grant by
the Region Rhone Alpes; Office of Science, Office of Advanced Scientific
Computing Research, of the U.S. Department of Energy
[DE-AC02-05CH11231]; National Science Foundation [ANI-0087344];
University of California, San Diego; W. M. Keck Foundation; Alfred P.
Sloan Foundation; U.S. Department of Energy Office of Science; National
Aeronautics and Space Administration; Japanese Monbukagakusho; Max
Planck Society; Higher Education Funding Council for England;
[CE110001020]
FX Based in part on observations made with the NASA Galaxy Evolution
Explorer. GALEX is operated for NASA by the California Institute of
Technology under NASA contract NAS5-98034. The authors graciously
acknowledge support from GALEX Archival Research Grant #08-GALEX508-0008
for program GI5-047 (PI: Aldering). This work was supported by the
Director, Office of Science, Office of High Energy Physics, of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231; by the U.S.
Department of Energy Scientific Discovery through Advanced Computing
(SciDAC) program under Contract No. DE-FG02-06ER06-04; by a grant from
the Gordon & Betty Moore Foundation; in France by support from
CNRS/IN2P3, CNRS/INSU, and PNC; and in Germany by the DFG through TRR33
"The Dark Universe." Funding was also provided by a Henri Chretien
International Research Grant administrated by the American Astronomical
Society; by the France-Berkeley Fund; and by an Explora'Doc Grant by the
Region Rhone Alpes. This research used resources of the National Energy
Research Scientific Computing Center, which is supported by the
Director, Office of Science, Office of Advanced Scientific Computing
Research, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. We thank them for a generous allocation of storage
and computing time. HPWREN is funded by National Science Foundation
Grant Number ANI-0087344, and the University of California, San Diego.
The Centre for All-sky Astrophysics is an Australian Research Council
Centre of Excellence, funded by grant CE110001020.; The authors would
like to thank the excellent technical and scientific staff at the many
observatories where data were taken for this paper: the University of
Hawaii 2.2 m telescope, Lick Observatory, Keck Observatory, the Blanco 4
m telescope, the SOAR telescope, and Gemini South. Some data presented
herein were obtained at the W. M. Keck Observatory, which is operated as
a scientific partnership among the California Institute of Technology,
the University of California, and the National Aeronautics and Space
Administration; the Observatory was made possible by the generous
financial support of the W. M. Keck Foundation. We wish to recognize and
acknowledge the very significant cultural role and reverence that the
summit of Mauna Kea has always had within the indigenous Hawaiian
community, and we are extremely grateful for the opportunity to conduct
observations from this mountain. We also thank Dan Birchall for
assistance with SNIFS observations.; Some of the data analyzed here were
obtained from the Sloan Digital Sky Survey Eighth Data Release (SDSS-III
DR8). Funding for SDSS-III has been provided by the Alfred P. Sloan
Foundation, the Participating Institutions, the National Science
Foundation, and the U.S. Department of Energy Office of Science. The
SDSS-III Web site is http://www.sdss3.org/. SDSS-III is managed by the
Astrophysical Research Consortium for the Participating Institutions of
the SDSS-III Collaboration, including the University of Arizona, the
Brazilian Participation Group, Brookhaven National Laboratory,
University of Cambridge, Carnegie Mellon University, University of
Florida, the French Participation Group, the German Participation Group,
Harvard University, the Instituto de Astrofisica de Canarias, the
Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins
University, Lawrence Berkeley National Laboratory, Max Planck Institute
for Astrophysics, New Mexico State University, New York University, Ohio
State University, Pennsylvania State University, University of
Portsmouth, Princeton University, the Spanish Participation Group,
University of Tokyo, University of Utah, Vanderbilt University,
University of Virginia, University of Washington, and Yale University.;
Additional derived quantities for SDSS galaxies were obtained from the
MPA-JHU database at http://www.mpa-garching.mpg.de/SDSS/ as derived from
the DR7 of SDSS. Funding for the SDSS and SDSS-II has been provided by
the Alfred P. Sloan Foundation, the Participating Institutions, the
National Science Foundation, the U.S. Department of Energy, the National
Aeronautics and Space Administration, the Japanese Monbukagakusho, the
Max Planck Society, and the Higher Education Funding Council for
England. The SDSS Web site is http://www.sdss.org/. The SDSS is managed
by the Astrophysical Research Consortium for the Participating
Institutions. The Participating Institutions are the American Museum of
Natural History, Astrophysical Institute Potsdam, University of Basel,
University of Cambridge, Case Western Reserve University, University of
Chicago, Drexel University, Fermilab, the Institute for Advanced Study,
the Japan Participation Group, Johns Hopkins University, the Joint
Institute for Nuclear Astrophysics, the Kavli Institute for Particle
Astrophysics and Cosmology, the Korean Scientist Group, the Chinese
Academy of Sciences (LAMOST), Los Alamos National Laboratory, the
Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for
Astrophysics (MPA), New Mexico State University, Ohio State University,
University of Pittsburgh, University of Portsmouth, Princeton
University, the United States Naval Observatory, and the University of
Washington.
NR 139
TC 25
Z9 25
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR UNSP 107
DI 10.1088/0004-637X/770/2/107
PG 24
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200025
ER
PT J
AU George, MR
Ma, CP
Bundy, K
Leauthaud, A
Tinker, J
Wechsler, RH
Finoguenov, A
Vulcani, B
AF George, Matthew R.
Ma, Chung-Pei
Bundy, Kevin
Leauthaud, Alexie
Tinker, Jeremy
Wechsler, Risa H.
Finoguenov, Alexis
Vulcani, Benedetta
TI GALAXIES IN X-RAY GROUPS. III. SATELLITE COLOR AND MORPHOLOGY
TRANSFORMATIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: bulges; galaxies: clusters: general; galaxies: evolution;
galaxies: halos; galaxies: statistics; X-rays: galaxies: clusters
ID DIGITAL SKY SURVEY; SIMILAR-TO 1; EXTRAGALACTIC LEGACY SURVEY;
DARK-MATTER HALOS; WIDE-FIELD SURVEY; STAR-FORMATION; STELLAR MASS;
DENSITY RELATION; COSMOS SURVEY; RED SEQUENCE
AB While the star formation rates and morphologies of galaxies have long been known to correlate with their local environment, the process by which these correlations are generated is not well understood. Galaxy groups are thought to play an important role in shaping the physical properties of galaxies before entering massive clusters at low redshift, and transformations of satellite galaxies likely dominate the buildup of local environmental correlations. To illuminate the physical processes that shape galaxy evolution in dense environments, we study a sample of 116 X-ray selected galaxy groups at z = 0.2-1 with halo masses of 10(13)-10(14) M-circle dot and centroids determined with weak lensing. We analyze morphologies based on Hubble Space Telescope imaging and colors determined from 31 photometric bands for a stellar mass-limited population of 923 satellite galaxies and a comparison sample of 16,644 field galaxies. Controlling for variations in stellar mass across environments, we find significant trends in the colors and morphologies of satellite galaxies with group-centric distance and across cosmic time. Specifically at low stellar mass (log(M-star/M-circle dot) = 9.8-10.3), the fraction of disk-dominated star-forming galaxies declines from >50% among field galaxies to <20% among satellites near the centers of groups. This decline is accompanied by a rise in quenched galaxies with intermediate bulge+disk morphologies, and only a weak increase in red bulge-dominated systems. These results show that both color and morphology are influenced by a galaxy's location within a group halo. We suggest that strangulation and disk fading alone are insufficient to explain the observed morphological dependence on environment, and that galaxy mergers or close tidal encounters must play a role in building up the population of quenched galaxies with bulges seen in dense environments at low redshift.
C1 [George, Matthew R.; Ma, Chung-Pei] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
[George, Matthew R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Bundy, Kevin; Leauthaud, Alexie; Vulcani, Benedetta] Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe, Kavli IPMU,WPI, Kashiwa, Chiba 2778583, Japan.
[Tinker, Jeremy] NYU, Dept Phys, Ctr Cosmol & Particle Phys, New York, NY 10003 USA.
[Wechsler, Risa H.] SLAC Natl Accelerator Lab, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94025 USA.
[Wechsler, Risa H.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Finoguenov, Alexis] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland.
RP George, MR (reprint author), Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA.
EM mgeorge@astro.berkeley.edu
OI Vulcani, Benedetta/0000-0003-0980-1499
FU US Department of Energy's Office of High Energy Physics
[DE-AC02-05CH11231]; US National Science Foundation; Simons Foundation
[224959]; World Premier International Research Center Initiative (WPI
Initiative); MEXT, Japan; Jet Propulsion Laboratory; California
Institute of Technology; National Aeronautics and Space Administration
FX We thank Andrew Wetzel, Frank van den Bosch, and Nic Ross for helpful
discussions, and Claire Lackner for constructive comments on a draft.
M.R.G. acknowledges support from the US Department of Energy's Office of
High Energy Physics (DE-AC02-05CH11231) and a Graduate Research
Fellowship from the US National Science Foundation. C.P.M. is partially
supported by a grant from the Simons Foundation (#224959). This work was
also supported by World Premier International Research Center Initiative
(WPI Initiative), MEXT, Japan. We gratefully acknowledge the
contributions of the entire COSMOS collaboration. More information on
the COSMOS survey is available at http://cosmos.astro.caltech.edu. This
research has made use of the NASA/IPAC Infrared Science Archive, which
is operated by the Jet Propulsion Laboratory, California Institute of
Technology, under contract with the National Aeronautics and Space
Administration.
NR 75
TC 8
Z9 8
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR 113
DI 10.1088/0004-637X/770/2/113
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200031
ER
PT J
AU Gonzalez, RE
Kravtsov, AV
Gnedin, NY
AF Gonzalez, Roberto E.
Kravtsov, Andrey V.
Gnedin, Nickolay Y.
TI SATELLITES IN MILKY-WAY-LIKE HOSTS: ENVIRONMENT DEPENDENCE AND CLOSE
PAIRS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE dark matter; Galaxy: fundamental parameters; Galaxy: halo; Magellanic
Clouds
ID DARK-MATTER HALO; HORIZONTAL-BRANCH STARS; LARGE-MAGELLANIC-CLOUD; VIRGO
CLUSTER; LOCAL GROUP; GALACTIC SATELLITES; MASS-DISTRIBUTION; SCALE
STRUCTURE; PROPER MOTION; GALAXIES
AB Previous studies showed that an estimate of the likelihood distribution of the Milky Way (MW) halo mass can be derived using the properties of the satellites similar to the Large and Small Magellanic Clouds (LMC and SMC). However, it would be straightforward to interpret such an estimate only if the properties of the Magellanic Clouds (MCs) are fairly typical and are not biased by the environment. In this study, we explore whether the environment of the MW affects the properties of the SMC and LMC such as their velocities. To test for the effect of the environment, we compare velocity distributions for MC-sized subhalos around MW hosts in a sample selected simply by mass and in the second sample of such halos selected with additional restrictions on the distance to the nearest cluster and the local galaxy density, designed to mimic the environment of the Local Group (LG). We find that satellites in halos in the LG-like environments do have somewhat larger velocities, as compared to the halos of similar mass in the sample without environmental constraints. For example, the fraction of subhalos matching the velocity of the LMC is 23% +/- 2% larger in the LG-like environments. We derive the host halo likelihood distribution for the samples in the LG-like environment and in the control sample and find that the environment does not significantly affect the derived likelihood. We use the updated properties of the SMC and LMC to derive the constraint on the MW halo mass of log (M-200/M-circle dot) = 12.06(-0.19)(+0.31) (90% confidence interval). We also explore the incidence of close pairs with relative velocities and separations similar to those of the LMC and SMC and find that such pairs are quite rare among Delta CDM halos. Only 2% of halos in the MW mass range have a relatively close pair (Delta r < 40 kpc and Delta s < 160 km s(-1)) of subhalos with circular velocities v(circ) > 50 km s(-1). Pairs with masses and separations similar to those of the LMC and SMC (Delta r(MC) = 23.4 +/- 10 kpc and Delta s(MC) = 128 +/- 32 km s(-1)) are found only in one out of approximate to 30,000 MW-sized halos. Interestingly, the halo mass likelihood distribution for host halos constrained to have MC-like close pairs of subhalos is quite different from the global likelihood from which the MW halo mass constraint discussed above was derived. Taking into account the close separation of the MCs in the Busha et al. method results in the shift of the MW halo mass estimate to smaller masses, with the peak shifting approximately by a factor of two.
C1 [Gonzalez, Roberto E.; Kravtsov, Andrey V.; Gnedin, Nickolay Y.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Gonzalez, Roberto E.; Kravtsov, Andrey V.; Gnedin, Nickolay Y.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Kravtsov, Andrey V.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
RP Gonzalez, RE (reprint author), Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 USA.
EM regonzar@oddjob.uchicago.edu
FU NSF [OCI-0904482, AST-0807444]; Kavli Institute for Cosmological Physics
at the University of Chicago through the NSF [PHY-0551142, PHY-1125897];
Kavli Foundation
FX This work was supported by the NSF via grant OCI-0904482. A. K. was in
addition supported in part by the NSF grant AST-0807444 and by the Kavli
Institute for Cosmological Physics at the University of Chicago through
the NSF grants PHY-0551142 and PHY-1125897 and an endowment from the
Kavli Foundation. We have made extensive use of the NASA Astrophysics
Data System and the arXiv.org preprint server.
NR 57
TC 13
Z9 13
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR UNSP 96
DI 10.1088/0004-637X/770/2/96
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200014
ER
PT J
AU Harrison, FA
Craig, WW
Christensen, FE
Hailey, CJ
Zhang, WW
Boggs, SE
Stern, D
Cook, WR
Forster, K
Giommi, P
Grefenstette, BW
Kim, Y
Kitaguchi, T
Koglin, JE
Madsen, KK
Mao, PH
Miyasaka, H
Mori, K
Perri, M
Pivovaroff, MJ
Puccetti, S
Rana, VR
Westergaard, NJ
Willis, J
Zoglauer, A
An, HJ
Bachetti, M
Barriere, NM
Bellm, EC
Bhalerao, V
Brejnholt, NF
Fuerst, F
Liebe, CC
Markwardt, CB
Nynka, M
Vogel, JK
Walton, DJ
Wik, DR
Alexander, DM
Cominsky, LR
Hornschemeier, AE
Hornstrup, A
Kaspi, VM
Madejski, GM
Matt, G
Molendi, S
Smith, DM
Tomsick, JA
Ajello, M
Ballantyne, DR
Balokovic, M
Barret, D
Bauer, FE
Blandford, RD
Brandt, WN
Brenneman, LW
Chiang, J
Chakrabarty, D
Chenevez, J
Comastri, A
Dufour, F
Elvis, M
Fabian, AC
Farrah, D
Fryer, CL
Gotthelf, EV
Grindlay, JE
Helfand, DJ
Krivonos, R
Meier, DL
Miller, JM
Natalucci, L
Ogle, P
Ofek, EO
Ptak, A
Reynolds, SP
Rigby, JR
Tagliaferri, G
Thorsett, SE
Treister, E
Urry, CM
AF Harrison, Fiona A.
Craig, William W.
Christensen, Finn E.
Hailey, Charles J.
Zhang, William W.
Boggs, Steven E.
Stern, Daniel
Cook, W. Rick
Forster, Karl
Giommi, Paolo
Grefenstette, Brian W.
Kim, Yunjin
Kitaguchi, Takao
Koglin, Jason E.
Madsen, Kristin K.
Mao, Peter H.
Miyasaka, Hiromasa
Mori, Kaya
Perri, Matteo
Pivovaroff, Michael J.
Puccetti, Simonetta
Rana, Vikram R.
Westergaard, Niels J.
Willis, Jason
Zoglauer, Andreas
An, Hongjun
Bachetti, Matteo
Barriere, Nicolas M.
Bellm, Eric C.
Bhalerao, Varun
Brejnholt, Nicolai F.
Fuerst, Felix
Liebe, Carl C.
Markwardt, Craig B.
Nynka, Melania
Vogel, Julia K.
Walton, Dominic J.
Wik, Daniel R.
Alexander, David M.
Cominsky, Lynn R.
Hornschemeier, Ann E.
Hornstrup, Allan
Kaspi, Victoria M.
Madejski, Greg M.
Matt, Giorgio
Molendi, Silvano
Smith, David M.
Tomsick, John A.
Ajello, Marco
Ballantyne, David R.
Balokovic, Mislav
Barret, Didier
Bauer, Franz E.
Blandford, Roger D.
Brandt, W. Niel
Brenneman, Laura W.
Chiang, James
Chakrabarty, Deepto
Chenevez, Jerome
Comastri, Andrea
Dufour, Francois
Elvis, Martin
Fabian, Andrew C.
Farrah, Duncan
Fryer, Chris L.
Gotthelf, Eric V.
Grindlay, Jonathan E.
Helfand, David J.
Krivonos, Roman
Meier, David L.
Miller, Jon M.
Natalucci, Lorenzo
Ogle, Patrick
Ofek, Eran O.
Ptak, Andrew
Reynolds, Stephen P.
Rigby, Jane R.
Tagliaferri, Gianpiero
Thorsett, Stephen E.
Treister, Ezequiel
Urry, C. Megan
TI THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY (NuSTAR) HIGH-ENERGY X-RAY
MISSION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE space vehicles: instruments; X-rays: general
ID ACTIVE GALACTIC NUCLEI; SUPERMASSIVE BLACK-HOLE; DEEP FIELD-SOUTH;
SUPERNOVA REMNANT G1.9+0.3; SOFT GAMMA-REPEATERS; MS SOURCE CATALOGS;
BROAD IRON LINES; XMM-NEWTON; ASCA OBSERVATIONS; NEUTRON-STAR
AB The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing far beyond the similar to 10 keV high-energy cutoff achieved by all previous X-ray satellites. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity over the collimated or coded mask instruments that have operated in this bandpass. Using its unprecedented combination of sensitivity and spatial and spectral resolution, NuSTAR will pursue five primary scientific objectives: (1) probe obscured active galactic nucleus (AGN) activity out to the peak epoch of galaxy assembly in the universe (at z less than or similar to 2) by surveying selected regions of the sky; (2) study the population of hard X-ray-emitting compact objects in the Galaxy by mapping the central regions of the Milky Way; (3) study the non-thermal radiation in young supernova remnants, both the hard X-ray continuum and the emission from the radioactive element Ti-44; (4) observe blazars contemporaneously with ground-based radio, optical, and TeV telescopes, as well as with Fermi and Swift, to constrain the structure of AGN jets; and (5) observe line and continuum emission from core-collapse supernovae in the Local Group, and from nearby Type Ia events, to constrain explosion models. During its baseline two-year mission, NuSTAR will also undertake a broad program of targeted observations. The observatory consists of two co-aligned grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis stabilized spacecraft. Deployed into a 600 km, near-circular, 6 degrees inclination orbit, the observatory has now completed commissioning, and is performing consistent with pre-launch expectations. NuSTAR is now executing its primary science mission, and with an expected orbit lifetime of 10 yr, we anticipate proposing a guest investigator program, to begin in late 2014.
C1 [Harrison, Fiona A.; Cook, W. Rick; Forster, Karl; Grefenstette, Brian W.; Madsen, Kristin K.; Mao, Peter H.; Miyasaka, Hiromasa; Rana, Vikram R.; Bellm, Eric C.; Bhalerao, Varun; Fuerst, Felix; Walton, Dominic J.; Balokovic, Mislav] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA.
[Craig, William W.; Pivovaroff, Michael J.; Vogel, Julia K.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Craig, William W.; Boggs, Steven E.; Zoglauer, Andreas; Barriere, Nicolas M.; Tomsick, John A.; Ajello, Marco; Krivonos, Roman] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Christensen, Finn E.; Westergaard, Niels J.; Brejnholt, Nicolai F.; Hornstrup, Allan; Chenevez, Jerome] Tech Univ Denmark, DTU Space, Natl Space Inst, DK-2800 Lyngby, Denmark.
[Hailey, Charles J.; Koglin, Jason E.; Mori, Kaya; Nynka, Melania; Gotthelf, Eric V.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Zhang, William W.; Markwardt, Craig B.; Wik, Daniel R.; Hornschemeier, Ann E.; Ptak, Andrew; Rigby, Jane R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Stern, Daniel; Kim, Yunjin; Willis, Jason; Liebe, Carl C.; Meier, David L.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Giommi, Paolo; Perri, Matteo; Puccetti, Simonetta] ESRIN, ASI Sci Data Ctr, I-00044 Frascati, Italy.
[Kitaguchi, Takao] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Italy.
[Koglin, Jason E.; Madejski, Greg M.] RIKEN, Wako, Saitama 3510198, Japan.
[Perri, Matteo; Puccetti, Simonetta; Blandford, Roger D.; Chiang, James] SLAC Natl Accelerator Lab, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94025 USA.
[An, Hongjun; Kaspi, Victoria M.; Dufour, Francois] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Bachetti, Matteo; Barret, Didier] Univ Toulouse, IRAP, UPS OMP, Toulouse, France.
[Bachetti, Matteo; Barret, Didier] CNRS, Inst Rech Astrophys & Planetol, F-31028 Toulouse 4, France.
[Bhalerao, Varun] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.
[Alexander, David M.] Univ Durham, Dept Phys, Durham DH1 3LE, England.
[Cominsky, Lynn R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Matt, Giorgio] Univ Roma Tre, Dipartimento Matemat & Fis, I-00146 Rome, Italy.
[Molendi, Silvano] INAF, IASF Milano, I-20133 Milan, Italy.
[Smith, David M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Smith, David M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Ballantyne, David R.] Georgia Inst Technol, Sch Phys, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
[Bauer, Franz E.] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Santiago 22, Chile.
[Brandt, W. Niel] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Brandt, W. Niel] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA.
[Brenneman, Laura W.; Elvis, Martin; Grindlay, Jonathan E.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Chakrabarty, Deepto] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA.
[Comastri, Andrea] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy.
[Fabian, Andrew C.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
[Farrah, Duncan] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
[Fryer, Chris L.] Los Alamos Natl Lab, CCS 2, Los Alamos, NM 87545 USA.
[Helfand, David J.] Quest Univ Canada, Squamish, BC V8B 0N8, Canada.
[Miller, Jon M.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Natalucci, Lorenzo] INAF, Ist Astrofis & Planetol Spaziali, I-00133 Rome, Italy.
[Ogle, Patrick] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA.
[Ofek, Eran O.] Weizmann Inst Sci, Benoziyo Ctr Astrophys, IL-76100 Rehovot, Israel.
[Reynolds, Stephen P.] NC State Univ, Dept Phys, Raleigh, NC 27695 USA.
[Tagliaferri, Gianpiero] INAF Osservatorio Astron Brera, I-23807 Merate, Italy.
[Thorsett, Stephen E.] Willamette Univ, Dept Phys, Salem, OR 97301 USA.
[Treister, Ezequiel] Univ Concepcion, Dept Astron, Concepcion, Chile.
[Urry, C. Megan] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
[Urry, C. Megan] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA.
RP Harrison, FA (reprint author), CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA.
EM fiona@srl.caltech.edu
RI Urry, Claudia/G-7381-2011; Rigby, Jane/D-4588-2012; Pivovaroff,
Michael/M-7998-2014; Boggs, Steven/E-4170-2015; Brandt,
William/N-2844-2015; Comastri, Andrea/O-9543-2015;
OI giommi, paolo/0000-0002-2265-5003; Bhalerao, Varun/0000-0002-6112-7609;
Perri, Matteo/0000-0003-3613-4409; Puccetti,
Simonetta/0000-0002-2734-7835; Urry, Claudia/0000-0002-0745-9792; Rigby,
Jane/0000-0002-7627-6551; Pivovaroff, Michael/0000-0001-6780-6816;
Boggs, Steven/0000-0001-9567-4224; Brandt, William/0000-0002-0167-2453;
Comastri, Andrea/0000-0003-3451-9970; Thorsett,
Stephen/0000-0002-2025-9613; Bachetti, Matteo/0000-0002-4576-9337; Rana,
Vikram/0000-0003-1703-8796; Alexander, David/0000-0002-5896-6313;
Molendi, Silvano/0000-0002-2483-278X; Tagliaferri,
Gianpiero/0000-0003-0121-0723
FU NASA [NNG08FD60C]; National Aeronautics and Space Administration;
National Space Institute, Technical University of Denmark; Italian Space
Agency (ASI); Centre National d'Etudes Spatiales (CNES); NASA
Postdoctoral Program; Leverhulme Research Fellowship; U.S. DOE/LLNL;
NSERC; CIFAR; FQRNT; Killam Research Fellowship; Science and Technology
Facilities Council; NSF AST
FX This work was supported under NASA No. NNG08FD60C and made use of data
from the Nuclear Spectroscopic Telescope Array (NuSTAR) mission, a
project led by Caltech, managed by the Jet Propulsion Laboratory, and
funded by the National Aeronautics and Space Administration. Additional
support for development was provided by the National Space Institute,
Technical University of Denmark. The Malindi ground station is provided
by the Italian Space Agency (ASI) and support for science software
development by the ASI Science Data Center (ASDC). Science team members
acknowledge support from Centre National d'Etudes Spatiales (CNES)
(D.B., M.B.), the NASA Postdoctoral Program (D.R.W.), Leverhulme
Research Fellowship and Science and Technology Facilities Council
(D.M.A), NSF AST (D.R.B.), U.S. DOE/LLNL (W.W.C., M.P., J.V.), NSERC,
CIFAR, FQRNT, and Killam Research Fellowship (V.K.). We thank David
Burrows (PSU) for useful comments which improved the quality of the
manuscript.
NR 155
TC 427
Z9 427
U1 3
U2 52
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR UNSP 103
DI 10.1088/0004-637X/770/2/103
PG 19
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200021
ER
PT J
AU Kistler, MD
Stanek, KZ
Kochanek, CS
Prieto, JL
Thompson, TA
AF Kistler, Matthew D.
Stanek, K. Z.
Kochanek, Christopher S.
Prieto, Jose L.
Thompson, Todd A.
TI THE IMPACT OF METALLICITY ON THE RATE OF TYPE Ia SUPERNOVAE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE binaries: close; supernovae: general; white dwarfs
ID DELAY-TIME DISTRIBUTION; ASYMPTOTIC GIANT BRANCH; STAR-FORMATION RATE;
GAMMA-RAY BURSTS; WHITE-DWARF MERGERS; FINAL MASS RELATION; EARLY-TYPE
GALAXIES; DIGITAL SKY SURVEY; HOST GALAXIES; HIGH-REDSHIFT
AB The metallicity of a star strongly affects both its evolution and the properties of the stellar remnant that results from its demise. It is generally accepted that stars with initial masses below similar to 8 M-circle dot leave behind white dwarfs and that some sub-population of these lead to Type Ia supernovae (SNe Ia). However, it is often tacitly assumed that metallicity has no effect on the rate of SNe Ia. We propose that a consequence of the effects of metallicity is to significantly increase the SN Ia rate in lower-metallicity galaxies, in contrast to previous expectations. This is because lower-metallicity stars leave behind higher-mass white dwarfs, which should be easier to bring to explosion. We first model SN Ia rates in relation to galaxy masses and ages alone, finding that the elevation in the rate of SNe Ia in lower-mass galaxies measured by Lick Observatory SN Search is readily explained. However, we then see that models incorporating this effect of metallicity agree just as well. Using the same parameters to estimate the cosmic SN Ia rate, we again find good agreement with data up to z approximate to 2. We suggest that this degeneracy warrants more detailed examination of host galaxy metallicities. We discuss additional implications, including for hosts of high-z SNe Ia, the SN Ia delay time distribution, super-Chandrasekhar SNe, and cosmology.
C1 [Kistler, Matthew D.] CALTECH, Pasadena, CA 91125 USA.
[Kistler, Matthew D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Kistler, Matthew D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Stanek, K. Z.; Kochanek, Christopher S.; Thompson, Todd A.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Stanek, K. Z.; Kochanek, Christopher S.; Thompson, Todd A.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Prieto, Jose L.] Carnegie Observ, Pasadena, CA 91101 USA.
RP Kistler, MD (reprint author), CALTECH, Mail Code 350-17, Pasadena, CA 91125 USA.
FU NASA [PF0-110074, NAS 5-26555, HF-51261.01-A]; NSF [AST-0908816]; Alfred
P. Sloan Foundation Fellowship; STScI
FX We thank John Beacom, Jonathan Bird, Shunsaku Horiuchi, Rubab Khan, Marc
Pinsonneault, and Hasan Yuksel for helpful discussions, Weidong Li for
providing us with the data in Figure 1, and the referee for helpful
comments. M.D.K. acknowledges support provided by NASA through the
Einstein Fellowship Program, grant PF0-110074. K.Z.S., C.S.K. and T.A.
T. are supported in part by NSF grant AST-0908816. J.L.P. acknowledges
support from NASA through Hubble Fellowship grant HF-51261.01-A awarded
by the STScI, which is operated by AURA, Inc. for NASA, under contract
NAS 5-26555. T.A.T. is supported in part by an Alfred P. Sloan
Foundation Fellowship.
NR 94
TC 15
Z9 15
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 20
PY 2013
VL 770
IS 2
AR UNSP 88
DI 10.1088/0004-637X/770/2/88
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 160HZ
UT WOS:000320111200006
ER
PT J
AU Li, YK
Liu, F
Zheng, GP
Pan, D
Zhao, YH
Wang, YM
AF Li, Y. K.
Liu, F.
Zheng, G. P.
Pan, D.
Zhao, Y. H.
Wang, Y. M.
TI Strength scaling law, deformation kinetics and mechanisms of
nanostructured Ti
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Nanostructured Ti; Strain rate sensitivity; Activation volume;
Hall-petch relationship; Internal friction
ID SEVERE PLASTIC-DEFORMATION; HIGH-TENSILE DUCTILITY; NANOCRYSTALLINE
TITANIUM; PURE TITANIUM; INTERNAL-FRICTION; ALPHA-TITANIUM;
MICROSTRUCTURE; TEMPERATURE; EVOLUTION; BEHAVIOR
AB We investigate the tensile properties, strain rate sensitivity, and activation volume of nanostructured Ti prepared by equal channel angular pressing plus a series of thermal treatment. Simultaneous enhancement of strength and tensile ductility is achieved. The strain rate sensitivity is found to decrease with decreasing grain sizes (similar to 150-450 nm). A new Hall-petch relationship is presented and discussed. The analyses on the internal friction peaks at around 70 degrees C suggest that twins could play the primary role for the strain hardening of the annealed nanostructured Ti, consistent with the miniscule activation volumes. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Li, Y. K.; Liu, F.; Pan, D.] Shanghai Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China.
[Li, Y. K.; Zheng, G. P.] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China.
[Zhao, Y. H.] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing, Jiangsu, Peoples R China.
[Wang, Y. M.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA.
RP Wang, YM (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA.
EM mmzheng@polyu.edu.hk; ymwang@llnl.gov
RI Zhao, Yonghao/A-8521-2009; Wang, Yinmin (Morris)/F-2249-2010
OI Wang, Yinmin (Morris)/0000-0002-7161-2034
FU Shanghai Project [10540500900]; Science and Technology Innovation
Commission of Shenzhen, China; NSFC [51225102]; New Century Excellent
Talent of Education Department of China; Fundamental Research Funds for
the Central Universities [NUST2012ZDJH008]; 8th "Liuda Rencai Gaofeng"
of Jiansu Province [2011-XCL-016B]; Gaocengci Chuangxin Chuangye of
Jiansu Province; U.S. Department of Energy [DE-AC52-07NA27344]
FX YKL, FL, and DP gratefully acknowledge the financial support from
Shanghai Project no. 10540500900. YKL and GPZ thanks for the supports
provided by the Science and Technology Innovation Commission of
Shenzhen, China. YHZ is supported by NSFC (no. 51225102), New Century
Excellent Talent of Education Department of China, the Fundamental
Research Funds for the Central Universities (No. NUST2012ZDJH008), the
8th "Liuda Rencai Gaofeng" of Jiansu Province (no. 2011-XCL-016B), and
Gaocengci Chuangxin Chuangye of Jiansu Province. Profs. Valiev and
Lavernia are gratefully acknowledged for providing the samples. The work
at LLNL was performed under the auspices of the U.S. Department of
Energy under Contract no. DE-AC52-07NA27344.
NR 31
TC 4
Z9 5
U1 3
U2 36
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD JUN 20
PY 2013
VL 573
BP 141
EP 147
DI 10.1016/j.msea.2013.02.054
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 152PU
UT WOS:000319544400020
ER
PT J
AU Jiang, DE
Overbury, SH
Dai, S
AF Jiang, De-en
Overbury, Steven H.
Dai, Sheng
TI Structure of Au-15(SR)(13) and Its Implication for the Origin of the
Nucleus in Thiolated Gold Nanoclusters
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID CLUSTERS
AB Au-15(SR)(13) is the smallest stable thiolated gold nanocluster experimentally identified so far, and its elusive structure may hold the key to the origin of the nucleus in the formation of thiolated gold nanoclusters. By an extensive exploration of possible isomers by density functional theory, we arrive at a novel structure for Au-15(SR)(13) with high stability and whose optical absorption characteristics match those of the experiment. Different from the previous structures and the prevailing working hypothesis about the construction of thiolated gold nanoclusters, the Au-15(SR)(13) model features a cyclic [Au(I)-SR] pentamer interlocked with one staple trimer motif protecting the tetrahedral Au-4 nucleus, together with another trimer motif. This structure suggests that Au-15(SR)(13) is a transitional composition from an [Au(I)-SR] polymer such as Au-10(SR)(10) to larger Au-n(SR)(m) (n > m) dusters that have only the staple motifs and that the nucleation process starts from the Au-4 core.
C1 [Jiang, De-en; Overbury, Steven H.; Dai, Sheng] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA.
[Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37966 USA.
RP Jiang, DE (reprint author), Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA.
EM jiangd@ornl.gov
RI Jiang, De-en/D-9529-2011; Overbury, Steven/C-5108-2016; Dai,
Sheng/K-8411-2015
OI Jiang, De-en/0000-0001-5167-0731; Overbury, Steven/0000-0002-5137-3961;
Dai, Sheng/0000-0002-8046-3931
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy; Office of Science of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy. We thank Prof. Rongchao Jin for helpful
discussions and Prof. Tatsuya Tsukuda and Prof. Yuichi Negishi for
providing the experimental optical-absorption spectrum of
Au15(SG)13. This research used resources of the
National Energy Research Scientific Computing Center (NERSC), which is
supported by the Office of Science of the U.S. Department of Energy
under contract no. DE-AC02-05CH11231.
NR 6
TC 58
Z9 58
U1 7
U2 80
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 8786
EP 8789
DI 10.1021/ja402680c
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200006
PM 23741983
ER
PT J
AU Chang, AY
Chen, YH
Lin, HW
Lin, LY
Wong, KT
Schaller, RD
AF Chang, Angela Y.
Chen, Yi-Hong
Lin, Hao-Wu
Lin, Li-Yen
Wong, Ken-Tsung
Schaller, Richard D.
TI Charge Carrier Dynamics of Vapor-Deposited Small-Molecule/Fullerene
Organic Solar Cells
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID POWER-CONVERSION EFFICIENCY; IR ABSORPTION-SPECTRA; RECOMBINATION
LOSSES; EXCITON DISSOCIATION; C-70; PHOTOVOLTAICS; PERFORMANCE;
GENERATION; MORPHOLOGY; GEMINATE
AB Although small-molecule organic solar cells (SMOSCs) have shown increasingly promising prospects as a source of solar power, there have been few studies concerning the photophysics of these systems. Here, we report the time scale and efficiency of charge separation and recombination in a vapor-deposited SMOSC material that produces 5.81% power conversion efficiency. Transient absorption and time-resolved photoluminescence (trPL) studies of thin film blends comprising DTDCTB, a narrow-band gap electron donor, and either C-60 or C-70 as an electron acceptor show that charge separation occurs in similar to 100 fs, while charge recombination takes place over sub-ns and ns time scales. trPL indicates a donor electron-hole pair lifetime of similar to 33 ps in the neat film and reveals that similar to 20% of donors fail to charge separate in donor-acceptor mixed films, likely owing to some spatially extended donor-rich regions that interact poorly with acceptors. Our results suggest that morphological manipulations of this material could further improve device efficiency.
C1 [Chang, Angela Y.; Schaller, Richard D.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Chen, Yi-Hong; Lin, Hao-Wu] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan.
[Lin, Li-Yen; Wong, Ken-Tsung] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan.
[Schaller, Richard D.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Schaller, RD (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM schaller@anl.gov
RI Wong, Ken-Tsung/B-4304-2009; Lin, Hao-Wu/I-5871-2013;
OI Lin, Hao-Wu/0000-0003-4216-7995; Wong, Ken-Tsung/0000-0002-1680-6186
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; National Science Council of Taiwan [NSC
101-2112-M-007-017-MY3, NSC-101-2113-M-002-009-MY3]; Low Carbon Energy
Research Center, National Tsing-Hua University
FX Use of the Center for Nanoscale Materials was supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357. We also acknowledge
financial support from National Science Council of Taiwan (NSC
101-2112-M-007-017-MY3, NSC-101-2113-M-002-009-MY3) and the Low Carbon
Energy Research Center, National Tsing-Hua University.
NR 34
TC 14
Z9 14
U1 3
U2 87
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 8790
EP 8793
DI 10.1021/ja403056y
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200007
PM 23718234
ER
PT J
AU Liu, J
Pearce, CI
Liu, CX
Wang, ZM
Shi, L
Arenholz, E
Rosso, KM
AF Liu, Juan
Pearce, Carolyn I.
Liu, Chongxuan
Wang, Zheming
Shi, Liang
Arenholz, Elke
Rosso, Kevin M.
TI Fe3-xTixO4 Nanoparticles as Tunable Probes of Microbial Metal Oxidation
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID MAGNETIC CIRCULAR-DICHROISM; IRON-OXIDE NANOPARTICLES; 2P
ABSORPTION-SPECTRA; X-RAY-ABSORPTION; GENOMIC PERSPECTIVE; OXIDIZING
BACTERIA; ELECTRON-TRANSFER; THIN-FILMS; REDUCTION; TITANOMAGNETITE
AB Present and emerging biotechnological applications for iron (oxyhydr)oxide nanomaterials depend on their interaction with microorganisms, as do their toxicity, transport, and fate in biological and environmental systems. However, mass or electron transfer along key molecular pathways at microbe-nanomaterial interfaces is extremely difficult to quantify because of system complexity. Inspired by Fe(II)-oxidizing microbes widespread in nature, we isolate and characterize one such pathway by examining the oxidation of Fe3-xTixO4 (magnetite-titanomagnetite) nanoparticles by the bacterial electron transfer enzyme MtoA, a decaheme c-type cytochrome. Oxidation by MtoA was studied as a function of the thermodynamic driving force for electron transfer by controlling the Ti(IV) doping content (x), which tunes the solid-state Fe(II)/Fe(III) ratio built into the nanoparticles. A higher Fe(II)/Fe(III) ratio appears to systematically increase the electron transfer kinetics to the cytochrome. In situ X-ray diffraction indicated that, during oxidation, the spinel ferrite lattice remains intact while structural Fe(II) is progressively depleted. Surface and atomic site specific Fe L-2,L-3-edge X-ray magnetic circular dichroism indicated that MtoA directly accesses magnetically ordered B-sublattice Fe(II) at the interface. This study provides the first quantitative insights into an isolated molecular pathway for biotransformation of iron (oxyhydr)oxide nanomaterials, and more generally, it also illustrates new techniques for probing these pathways in detail, featuring use of tailored nanoparticles, purified metalloenzyme, and synchrotron X-ray absorption spectroscopies.
C1 [Liu, Juan; Pearce, Carolyn I.; Liu, Chongxuan; Wang, Zheming; Shi, Liang; Rosso, Kevin M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Arenholz, Elke] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Liu, J (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM juan.liu@pnnl.gov
RI Liu, Juan/D-2273-2013; Liu, Chongxuan/C-5580-2009; Wang,
Zheming/E-8244-2010; Liu, Juan/G-6035-2016
OI Wang, Zheming/0000-0002-1986-4357;
FU PNNL Science Focus Area (SFA); Subsurface Biogeochemical Research (SBR)
program; U.S. Department of Energy (DOE); DOE Office of Science, Office
of Basic Energy Sciences [DE-AC02-05CH11231]
FX This work was funded by PNNL Science Focus Area (SFA), Subsurface
Biogeochemical Research (SBR) program, and U.S. Department of Energy
(DOE). mu-XRD analyses were performed in the Environmental Molecular
Science Laboratory (EMSL), a national user facility supported by the DOE
Office of Biological and Environmental Research (OBER) and located at
PNNL. XA and XMCD measurements were performed at the Advance Light
Source (ALS) supported by the DOE Office of Science, Office of Basic
Energy Sciences under contract no. DE-AC02-05CH11231. We gratefully
acknowledge the assistance of R.A.D. Pattrick with some of the XA/XMCD
measurements at the ALS.
NR 61
TC 9
Z9 9
U1 6
U2 81
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 8896
EP 8907
DI 10.1021/ja4015343
PG 12
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200028
PM 23672679
ER
PT J
AU McGrath, MJ
Kuo, IFW
Hayashi, S
Takada, S
AF McGrath, Matthew J.
Kuo, I. -F. Will
Hayashi, Shigehiko
Takada, Shoji
TI Adenosine Triphosphate Hydrolysis Mechanism in Kinesin Studied by
Combined Quantum-Mechanical/Molecular-Mechanical Metadynamics
Simulations
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID FREE-ENERGY LANDSCAPES; ATP HYDROLYSIS; CARBONIC-ANHYDRASE;
MOLECULAR-DYNAMICS; PROTON TRANSPORT; CENTROSOME SEPARATION; MYOSIN;
WATER; PROTEINS; DENSITY
AB Kinesin is a molecular motor that hydrolyzes adenosine triphosphate (ATP) and moves along microtubules against load. While motility and atomic structures have been well-characterized for various members of the kinesin family, not much is known about ATP hydrolysis inside the active site. Here, we study ATP hydrolysis mechanisms in the kinesin-5 protein Eg5 by using combined quantum mechanics/molecular mechanics metadynamics simulations. Approximately 200 atoms at the catalytic site are treated by a dispersion-corrected density functional and, in total, 13 metadynamics simulations are performed with their cumulative time reaching similar to 0.7 ns. Using the converged runs, we compute free energy surfaces and obtain a few hydrolysis pathways. The pathway with the lowest free energy barrier involves a two-water chain and is initiated by the P-gamma-O-beta dissociation concerted with approach of the lytic water to P gamma O3-. This immediately induces a proton transfer from the lytic water to another water, which then gives a proton to the conserved Glu270. Later, the proton is transferred back from Glu270 to HPO42- via another hydrogen-bonded chain. We find that the reaction is favorable when the salt bridge between Glu270 in switch II and Arg234 in switch I is transiently broken, which facilitates the ability of Glu270 to accept a proton. When ATP is placed in the ADP-bound conformation of Eg5, the ATP-Mg moiety is surrounded by many water molecules and Thr107 blocks the water chain, which together make the hydrolysis reaction less favorable. The observed two-water chain mechanisms are rather similar to those suggested in two other motors, myosin and F-1-ATPase, raising the possibility of a common mechanism.
C1 [McGrath, Matthew J.; Takada, Shoji] Kyoto Univ, Grad Sch Sci, Dept Biophys, Sakyo Ku, Kyoto 6068502, Japan.
[Hayashi, Shigehiko] Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068502, Japan.
[Kuo, I. -F. Will] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
RP McGrath, MJ (reprint author), Kyoto Univ, Grad Sch Sci, Dept Biophys, Sakyo Ku, Kyoto 6068502, Japan.
EM mcgrath@theory.biophys.kyoto-u.ac.jp; takada@biophys.kyoto-u.ac.jp
RI Takada, Shoji/A-1163-2009
FU Ministry of Education, Culture, Sports, Science, and Technology, Japan
[23107716, 23107717]; Programme for Promotion of Basic and Applied
Researches for Innovations in Bio-oriented Industry; Research and
Development of the Next-Generation Integrated Simulation of Living
Matter; U.S. Department of Energy by Lawrence Livermore National
Laboratory; [23370057]; [23700580]
FX Xmgrace, VMD, Inkscape, R, and GIMP were used in preparation of the
figures. NAMD was developed by the Theoretical and Computational
Biophysics Group in the Beckman Institute for Advanced Science and
Technology at the University of Illinois at Urbana-Champaign. The study
was supported by Grant-in-Aid for Scientific Research on Innovative
Areas to S.T. (23107716) and to S.H. (23107717) from the Ministry of
Education, Culture, Sports, Science, and Technology, Japan; by
Grant-in-Aid for Scientific Research to S.T. (23370057) and to S.H.
(23700580); by the Programme for Promotion of Basic and Applied
Researches for Innovations in Bio-oriented Industry to S.H.; and by
Research and Development of the Next-Generation Integrated Simulation of
Living Matter to S.T. and S.H. Part of this research was performed under
the auspices of the U.S. Department of Energy by Lawrence Livermore
National Laboratory. We thank Liam Krauss (LLNL) for help with the table
of contents graphic.
NR 84
TC 16
Z9 16
U1 1
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 8908
EP 8919
DI 10.1021/ja401540g
PG 12
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200029
PM 23751065
ER
PT J
AU Ding, MN
Sorescu, DC
Star, A
AF Ding, Mengning
Sorescu, Dan C.
Star, Alexander
TI Photoinduced Charge Transfer and Acetone Sensitivity of Single-Walled
Carbon Nanotube-Titanium Dioxide Hybrids
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID SOLAR-CELLS; OXYGEN SENSITIVITY; NANOWIRE ARRAYS; BREATH ANALYSIS;
NANOPARTICLES; NANOSTRUCTURES; COMPOSITES; REACTIVITY; BIOMARKERS;
INTERFACES
AB The unique physical and chemical properties of single-walled carbon nanotubes (SWNTs) make them ideal building blocks for the construction of hybrid nanostructures. In addition to increasing the material complexity and functionality, SWNTs can probe the interfacial processes in the hybrid system. In this work, SWNT-TiO2 core/shell hybrid nanostructures were found to exhibit unique electrical behavior in response to UV illumination and acetone vapors. By experimental and theoretical studies of UV and acetone sensitivities of different SWNT-TiO2 hybrid systems, we established a fundamental understanding on the interfacial charge transfer between photoexcited TiO2 and SWNTs as well as the mechanism of acetone sensing. We further demonstrated a practical application of photoinduced acetone sensitivity by fabricating a microsized room temperature acetone sensor that showed fast, linear, and reversible detection of acetone vapors with concentrations in few parts per million range.
C1 [Ding, Mengning; Sorescu, Dan C.; Star, Alexander] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Ding, Mengning; Star, Alexander] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA.
RP Star, A (reprint author), US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
EM astar@pitt.edu
RI Ding, Mengning/P-6354-2014
FU National Energy Technology Laboratory (NETL) under URS contract
[DE-FE0004000]
FX This work was performed in support of ongoing research in sensor systems
and diagnostics at the National Energy Technology Laboratory (NETL)
under URS contract DE-FE0004000.
NR 51
TC 19
Z9 19
U1 12
U2 111
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 9015
EP 9022
DI 10.1021/ja402887v
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200041
PM 23734594
ER
PT J
AU Bennett, DIG
Amarnath, K
Fleming, GR
AF Bennett, Doran I. G.
Amarnath, Kapil
Fleming, Graham R.
TI A Structure-Based Model of Energy Transfer Reveals the Principles of
Light Harvesting in Photosystem II Supercomplexes
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID STRUCTURE-BASED SIMULATION; LINEAR OPTICAL-SPECTRA; EXCITATION-ENERGY;
COMPLEX-II; CHARGE SEPARATION; CRYSTAL-STRUCTURE; REACTION CENTERS;
GREEN PLANTS; SUPRAMOLECULAR ORGANIZATION; THYLAKOID MEMBRANE
AB Photosystem II (PSII) initiates photosynthesis in plants through the absorption of light and subsequent conversion of excitation energy to chemical energy via charge separation. The pigment binding proteins associated with PSII assemble in the grana membrane into PSII supercomplexes and surrounding light harvesting complex II trimers. To understand the high efficiency of light harvesting in PSII requires quantitative insight into energy transfer and charge separation in PSII supercomplexes. We have constructed the first structure-based model of energy transfer in PSII supercomplexes. This model shows that the kinetics of light harvesting cannot be simplified to a single rate limiting step. Instead, substantial contributions arise from both excitation diffusion through the antenna pigments and transfer from the antenna to the reaction center (RC), where charge separation occurs. Because of the lack of a rate-limiting step, fitting kinetic models to fluorescence lifetime data cannot be used to derive mechanistic insight on light harvesting in PSII. This model will clarify the interpretation of chlorophyll fluorescence data from PSII supercomplexes, grana membranes, and leaves.
C1 [Fleming, Graham R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Fleming, GR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM fleming@cchem.berkeley.edu
FU National Science Foundation; Office of Science, Office of Basic Energy
Sciences, of the US Department of Energy [DEAC02-05CH11231]; Division of
Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy
Sciences of the US Department of Energy [DE-AC03-76SF000098]
FX D.I.G.B would like to thank Vladimir Novoderezhkin for helpful
discussions about modified Redfield and LHCII calculations, Mino Yang
for discussion of linearized kinetic models, and Rienk van Grondelle for
helpful discussions. D.I.G.B. and K.A. would like to thank Roberta Croce
for providing her structure of the
C2S2M2 supercomplex and Julia Zaks,
Eleonora De Re, and Emily Jane Sylak-Glassman for extensive comments on
the manuscript. K.A. was partially supported by a National Science
Foundation Graduate Research Fellowship. This work was supported by the
Director, Office of Science, Office of Basic Energy Sciences, of the US
Department of Energy under Contract DEAC02-05CH11231 and the Division of
Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy
Sciences of the US Department of Energy through Grant
DE-AC03-76SF000098.
NR 48
TC 49
Z9 49
U1 5
U2 68
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 19
PY 2013
VL 135
IS 24
BP 9164
EP 9173
DI 10.1021/ja403685a
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 171BG
UT WOS:000320899200057
PM 23679235
ER
PT J
AU Hess, BM
Xue, JF
Markillie, LM
Taylor, RC
Wiley, HS
Ahring, BK
Linggi, B
AF Hess, Becky M.
Xue, Junfeng
Markillie, Lye Meng
Taylor, Ronald C.
Wiley, H. Steven
Ahring, Birgitte K.
Linggi, Bryan
TI Coregulation of Terpenoid Pathway Genes and Prediction of Isoprene
Production in Bacillus subtilis Using Transcriptomics
SO PLOS ONE
LA English
DT Article
ID METHYLERYTHRITOL PHOSPHATE-PATHWAY; ESCHERICHIA-COLI;
BIOSYNTHETIC-PATHWAY; LYCOPENE PRODUCTION; FUNCTIONAL-ANALYSIS;
PRECURSOR TOXICITY; EXPRESSION; BACTERIA; LEAVES; METABOLISM
AB The isoprenoid pathway converts pyruvate to isoprene and related isoprenoid compounds in plants and some bacteria. Currently, this pathway is of great interest because of the critical role that isoprenoids play in basic cellular processes, as well as the industrial value of metabolites such as isoprene. Although the regulation of several pathway genes has been described, there is a paucity of information regarding system level regulation and control of the pathway. To address these limitations, we examined Bacillus subtilis grown under multiple conditions and determined the relationship between altered isoprene production and gene expression patterns. We found that with respect to the amount of isoprene produced, terpenoid genes fall into two distinct subsets with opposing correlations. The group whose expression levels positively correlated with isoprene production included dxs, which is responsible for the commitment step in the pathway, ispD, and two genes that participate in the mevalonate pathway, yhfS and pksG. The subset of terpenoid genes that inversely correlated with isoprene production included ispH, ispF, hepS, uppS, ispE, and dxr. A genome-wide partial least squares regression model was created to identify other genes or pathways that contribute to isoprene production. These analyses showed that a subset of 213 regulated genes was sufficient to create a predictive model of isoprene production under different conditions and showed correlations at the transcriptional level. We conclude that gene expression levels alone are sufficiently informative about the metabolic state of a cell that produces increased isoprene and can be used to build a model that accurately predicts production of this secondary metabolite across many simulated environmental conditions.
C1 [Hess, Becky M.; Xue, Junfeng; Ahring, Birgitte K.] Washington State Univ Tricities, Bioprod Sci & Engn Lab, Richland, WA USA.
[Hess, Becky M.] Pacific NW Natl Lab, Chem & Biol Signature Sci Grp, Richland, WA 99352 USA.
[Markillie, Lye Meng] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Taylor, Ronald C.] Pacific NW Natl Lab, Computat Biol & Bioinformat Grp, Richland, WA 99352 USA.
[Wiley, H. Steven; Linggi, Bryan] Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA 99352 USA.
RP Linggi, B (reprint author), Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA 99352 USA.
EM Bryan.Linggi@pnnl.gov
OI Wiley, Steven/0000-0003-0232-6867; Taylor, Ronald/0000-0001-9777-9767
FU Washington State University; Washington State STAR researcher program;
United States Department of Energy (DOE); United States Department of
Energy [DE-AC05-76RL01830]
FX Funding is provided by Washington State University and financial support
from the Washington State STAR researcher program to B. A. K. Portions
of this work were conducted as part of a multi-capability research
campaign in the W. R. Wiley Environmental Molecular Sciences Laboratory
(EMSL), a national scientific user facility sponsored by the United
States Department of Energy (DOE) and is a contribution of the PNNL
Foundational Scientific Focus Area. Pacific Northwest National
Laboratory is a multi-program national laboratory operated by Battelle
for the United States Department of Energy under contract
DE-AC05-76RL01830. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 60
TC 5
Z9 5
U1 1
U2 30
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 19
PY 2013
VL 8
IS 6
AR e66104
DI 10.1371/journal.pone.0066104
PG 14
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 190ST
UT WOS:000322361200056
PM 23840410
ER
PT J
AU Michelou, VK
Caporaso, JG
Knight, R
Palumbi, SR
AF Michelou, Vanessa K.
Caporaso, J. Gregory
Knight, Rob
Palumbi, Stephen R.
TI The Ecology of Microbial Communities Associated with Macrocystis
pyrifera
SO PLOS ONE
LA English
DT Article
ID MARINE BACTERIAL STRAIN; MONTEREY BAY; DIVERSITY; KELP; MACROALGAE;
EXTRACTION; ORGANISMS; SURFACES; DYNAMICS; FUCOIDAN
AB Kelp forests are characterized by high biodiversity and productivity, and the cycling of kelp-produced carbon is a vital process in this ecosystem. Although bacteria are assumed to play a major role in kelp forest carbon cycling, knowledge of the composition and diversity of these bacterial communities is lacking. Bacterial communities on the surface of Macrocystis pyrifera and adjacent seawater were sampled at the Hopkins Marine Station in Monterey Bay, CA, and further studied using 454-tag pyrosequencing of 16S RNA genes. Our results suggest that M. pyrifera-dominated kelp forests harbor distinct microbial communities that vary temporally. The distribution of sequence tags assigned to Gammaproteobacteria, Alphaproteobacteria and Bacteriodetes differed between the surface of the kelp and the surrounding water. Several abundant Rhodobacteraceae, uncultivated Gammaproteobacteria and Bacteriodetes-associated tags displayed considerable temporal variation, often with similar trends in the seawater and the surface of the kelp. Bacterial community structure and membership correlated with the kelp surface serving as host, and varied over time. Several kelp-specific taxa were highly similar to other bacteria known to either prevent the colonization of eukaryotic larvae or exhibit antibacterial activities. Some of these kelp-specific bacterial associations might play an important role for M. pyrifera. This study provides the first assessment of the diversity and phylogenetic profile of the bacterial communities associated with M. pyrifera.
C1 [Michelou, Vanessa K.; Palumbi, Stephen R.] Stanford Univ, Hopkins Marine Stn, Dept Biol, Pacific Grove, CA 93950 USA.
[Caporaso, J. Gregory] No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA.
[Caporaso, J. Gregory] Argonne Natl Lab, Inst Genom & Syst Biol, Argonne, IL 60439 USA.
[Knight, Rob] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Knight, Rob] Univ Colorado, Howard Hughes Med Inst, Boulder, CO 80309 USA.
RP Michelou, VK (reprint author), Stanford Univ, Hopkins Marine Stn, Dept Biol, Pacific Grove, CA 93950 USA.
EM michelou@hawaii.edu
RI Knight, Rob/D-1299-2010
FU David and Lucile Packard Foundation; Stanford University; Howard Hughes
Medical Institute
FX This work was supported by the David and Lucile Packard Foundation and
by Stanford University, and by the Howard Hughes Medical Institute. The
funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript.
NR 42
TC 10
Z9 10
U1 3
U2 55
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 19
PY 2013
VL 8
IS 6
AR e67480
DI 10.1371/journal.pone.0067480
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 190ST
UT WOS:000322361200136
PM 23840715
ER
PT J
AU Bulanov, SS
Schroeder, CB
Esarey, E
Leemans, WP
AF Bulanov, S. S.
Schroeder, C. B.
Esarey, E.
Leemans, W. P.
TI Electromagnetic cascade in high-energy electron, positron, and photon
interactions with intense laser pulses
SO PHYSICAL REVIEW A
LA English
DT Article
ID EXTREME FIELD LIMITS; COMPTON-SCATTERING; PLASMA; LIGHT; WAVE;
ACCELERATOR; REGIME; DESIGN; DIRAC; BEAMS
AB The interaction of high-energy electrons, positrons, and photons with intense laser pulses is studied in head-on collision geometry. It is shown that electrons and/or positrons undergo a cascade-type process involving multiple emissions of photons. These photons can consequently convert into electron-positron pairs. As a result charged particles quickly lose their energy developing an exponentially decaying energy distribution, which suppresses the emission of high-energy photons, thus reducing the number of electron-positron pairs being generated. Therefore, this type of interaction suppresses the development of the electromagnetic avalanche-type discharge, i.e., the exponential growth of the number of electrons, positrons, and photons does not occur in the course of interaction. The suppression will occur when three-dimensional effects can be neglected in the transverse particle orbits, i.e., for sufficiently broad laser pulses with intensities that are not too extreme. The final distributions of electrons, positrons, and photons are calculated for the case of a high-energy e-beam interacting with a counterstreaming, short intense laser pulse. The energy loss of the e-beam, which requires a self-consistent quantum description, plays an important role in this process, as well as provides a clear experimental observable for the transition from the classical to quantum regime of interaction.
C1 [Bulanov, S. S.; Leemans, W. P.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Schroeder, C. B.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Bulanov, SS (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.
OI Schroeder, Carl/0000-0002-9610-0166
FU National Science Foundation [PHY-0935197]; Office of Science of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX We would like the thank M. Chen, T. Heinzl, A. Di Piazza, and J. Wurtele
for discussions. We appreciate support from the National Science
Foundation under Grant No. PHY-0935197, and the Office of Science of the
U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
NR 59
TC 36
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U1 2
U2 26
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 19
PY 2013
VL 87
IS 6
AR 062110
DI 10.1103/PhysRevA.87.062110
PG 10
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 169DN
UT WOS:000320757800002
ER
PT J
AU Junnarkar, PM
Walker-Loud, A
AF Junnarkar, P. M.
Walker-Loud, A.
TI Scalar strange content of the nucleon from lattice QCD
SO PHYSICAL REVIEW D
LA English
DT Article
ID CHIRAL FERMIONS; SIGMA-TERM; CROSS-SECTION; BARYON MASSES; QUARKS;
SCATTERING; EXPANSION; VALENCE; PHYSICS; MATTER
AB The scalar strange-quark matrix element of the nucleon is computed with lattice QCD. A mixed-action scheme is used with domain-wall valence fermions computed on the staggered MILC sea-quark configurations. The matrix element is determined by making use of the Feynman-Hellmann theorem which relates this strange matrix element to the change in the nucleon mass with respect to the strange-quark mass. The final result of this calculation is m(s)< N vertical bar(s) over bars vertical bar N > = 48 +/- 10 +/- 15 MeV and, correspondingly, f(s) = m(s)< N vertical bar(s) over bars vertical bar N >/m(N) = 0.051 +/- 0.011 +/- 0.016. Given the lack of a quantitative comparison of this phenomenologically important quantity determined from various lattice QCD calculations, we take the opportunity to present such an average. The resulting conservative determination is f(s) = 0.043 +/- 0.011.
C1 [Junnarkar, P. M.] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.
[Walker-Loud, A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Walker-Loud, A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Junnarkar, PM (reprint author), Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.
FU USQCD SciDAC project, LLNL, the Argonne Leadership Computing Facility at
Argonne National Laboratory (Office of Science of the DOE)
[DE-AC02-06CH11357]; NSF [PHY1206498]; Office of Energy Research, Office
of High Energy and Nuclear Physics, Divisions of Nuclear Physics, of the
U.S. DOE [DE-AC02-05CH11231]
FX P. M. J. would like to especially thank S. Beane for many helpful
conversations and for suggesting this project. P. M. J. also thanks the
hospitality of LBNL where some of this work was completed. A. W. L.
would like to thank R. Lebed for clarifying some subtleties in the large
Nc expansion. A. W. L. would also like to thank J. Ruderman
for helpful conversations. We thank our fellow members of the NPLQCD
Collaboration for providing some of the numerical results used in the
present work and for helpful comments. We thank C. Bernard for providing
the updated values of r1/b for the MILC Collaboration. We
thank J. Ruderman for the motivation to compare all lattice results of
this quantity. Numerical calculations for the present work were
performed with the CHROMA software suite [124]. We acknowledge
computational support from the USQCD SciDAC project, LLNL, the Argonne
Leadership Computing Facility at Argonne National Laboratory (Office of
Science of the DOE, under Contract No. DE-AC02-06CH11357). Calculations
were also performed on Endeavour, a UNH computing cluster. The work of
P. M. J. was supported in part by NSF Grant No. PHY1206498. The work of
A. W. L. was supported in part by the Director, Office of Energy
Research, Office of High Energy and Nuclear Physics, Divisions of
Nuclear Physics, of the U.S. DOE under Contract No. DE-AC02-05CH11231.
NR 124
TC 84
Z9 85
U1 1
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 19
PY 2013
VL 87
IS 11
AR 114510
DI 10.1103/PhysRevD.87.114510
PG 15
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 169EN
UT WOS:000320760900003
ER
PT J
AU Howard, CJ
Dagle, RA
Lebarbier, VM
Rainbolt, JE
Li, LY
King, DL
AF Howard, Christopher J.
Dagle, Robert A.
Lebarbier, Vanessa M.
Rainbolt, James E.
Li, Liyu
King, Dave L.
TI Progress toward Biomass and Coal-Derived Syngas Warm Cleanup:
Proof-of-Concept Process Demonstration of Multicontaminant Removal for
Biomass Application
SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
LA English
DT Article
ID HOT GAS; HYDROGEN-CHLORIDE; GASIFICATION; AMMONIA; KINETICS; SULFIDE;
SULFUR
AB Systems comprising multiple sorbent and catalytic beds have been developed for the warm cleanup of coal- and biomass-derived syngas. Tailored specifically for biomass application, the process described here consists of six primary unit operations: (1) a Na2CO3 bed for HCl removal, (2) two regenerable ZnO beds in parallel for bulk H2S removal, (3) a ZnO bed for H2S polishing, (4) a NiCu/SBA-16 sorbent for trace metal (e.g., AsH3) removal, (5) a steam reforming catalyst bed for tars and light hydrocarbon reformation and NH3 decomposition, and (6) a Cu-based LT-WGS catalyst bed. Simulated biomass-derived syngas containing possible inorganic contaminants (H2S, AsH3, HCl, and NH3) and hydrocarbons (methane, ethylene, benzene, and naphthalene) was used to demonstrate process effectiveness. The efficiency of the process was demonstrated for a period of 175 h, during which time no signs of deactivation were observed. However, postrun analysis revealed that small levels of sulfur slipped through the sorbent bed train to the two downstream catalytic beds. Future improvements will be made to the trace metal polishing sorbent to ensure complete inorganic contaminant removal (to low parts per billion level) prior to the catalytic steps. However, dual regenerating ZnO beds were effective for continuous removal for the vast majority of the sulfur present in the feed gas. The process was effective for complete AsH3 and HCl removal. The steam reforming catalyst completely reformed all the hydrocarbons present in the feed (methane, ethylene, benzene, and naphthalene) to additional syngas. However, postrun evaluation, under kinetically controlled conditions, indicates some deactivation of the steam reforming catalyst occurred. Spent catalyst characterization suggests this can be attributed, in part, to coke formation, likely due to the presence of benzene and/or naphthalene in the feed. Future adaptation of this technology may require dual, regenerable steam reformers. The process and materials described in this report hold promise for the warm cleanup of a variety of contaminant species within warm syngas.
C1 [Howard, Christopher J.; Dagle, Robert A.; Lebarbier, Vanessa M.; Rainbolt, James E.; Li, Liyu; King, Dave L.] Pacific NW Natl Lab, Energy & Environm Directorate, Inst Integrated Catalysis, Richland, WA 99352 USA.
RP Dagle, RA (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Inst Integrated Catalysis, Richland, WA 99352 USA.
EM robert.dagle@pnnl.gov; david.king@pnnl.gov
FU Department of Energy's Office of Biomass Program; Energy Conversion
Initiative at Pacific Northwest National Laboratory; Environmental
Molecular Sciences Laboratory (EMSL), a DOE
FX The authors would like to kindly thank Teresa Lemmon and Michel J. Gray
for their analytical support and also Dr. Libor Kovarik for his expert
assistance with the STEM imaging. The authors also acknowledge that
funding for the bulk of this work was provided by the Department of
Energy's Office of Biomass Program. Initial work on this concept was
funded through the Energy Conversion Initiative at Pacific Northwest
National Laboratory. Finally, the authors would like to acknowledge that
a portion of this work was done in the Environmental Molecular Sciences
Laboratory (EMSL), a DOE sponsored user facility located in Richland,
WA, at the Pacific Northwest National Laboratory.
NR 23
TC 7
Z9 7
U1 9
U2 32
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0888-5885
J9 IND ENG CHEM RES
JI Ind. Eng. Chem. Res.
PD JUN 19
PY 2013
VL 52
IS 24
BP 8125
EP 8138
DI 10.1021/ie4004927
PG 14
WC Engineering, Chemical
SC Engineering
GA 171BB
UT WOS:000320898700004
ER
PT J
AU Chen, H
Nakai, M
Sentoku, Y
Arikawa, Y
Azechi, H
Fujioka, S
Keane, C
Kojima, S
Goldstein, W
Maddox, BR
Miyanaga, N
Morita, T
Nagai, T
Nishimura, H
Ozaki, T
Park, J
Sakawa, Y
Takabe, H
Williams, G
Zhang, Z
AF Chen, Hui
Nakai, M.
Sentoku, Y.
Arikawa, Y.
Azechi, H.
Fujioka, S.
Keane, C.
Kojima, S.
Goldstein, W.
Maddox, B. R.
Miyanaga, N.
Morita, T.
Nagai, T.
Nishimura, H.
Ozaki, T.
Park, J.
Sakawa, Y.
Takabe, H.
Williams, G.
Zhang, Z.
TI New insights into the laser produced electron-positron pairs
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
ID SOLID INTERACTIONS; PLASMA; PARTICLES; IGNITION; CREATION
AB We report new results from the intense laser target interaction experiment that produces relativistic electron-positron pairs. Laser to electron energy transfer, inferred using x-ray and neutron measurements, was found to be consistent with the measured positrons. To increase the number of positrons, one needs to deliver a greater number of relativistic electrons from the laser-plasma interaction to the high Z gold target. A large preplasma was found to have a negative impact for this purpose, while the laser could produce hotter electrons in such preplasma. The peak energy shift in the positron spectrum is confirmed as the post-acceleration in the sheath potential behind the target. The results were supported by a collisional one-dimensional particle-in-cell code. This experiment was performed using the high-power LFEX laser at the Institute of Laser Engineering at Osaka University using a suite of diagnostics measuring electrons, positrons, x-rays and neutrons from the laser-target interaction at the relativistic regime.
C1 [Chen, Hui; Keane, C.; Goldstein, W.; Maddox, B. R.; Park, J.; Williams, G.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Nakai, M.; Arikawa, Y.; Azechi, H.; Fujioka, S.; Kojima, S.; Miyanaga, N.; Morita, T.; Nagai, T.; Nishimura, H.; Ozaki, T.; Sakawa, Y.; Takabe, H.; Zhang, Z.] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan.
[Sentoku, Y.] Univ Nevada, Dept Phys, Reno, NV 89557 USA.
RP Chen, H (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM chen33@llnl.gov
RI Miyanaga, Noriaki/F-1340-2015; Azechi, Hiroshi/H-5876-2015; Nakai,
Mitsuo/I-6758-2015; Nishimura, Hiroaki/I-4908-2015; Fujioka,
Shinsuke/J-5530-2015; Arikawa, Yasunobu/L-8760-2015; Sakawa,
Youichi/J-5707-2016; Sentoku, Yasuhiko/P-5419-2014
OI Miyanaga, Noriaki/0000-0002-9902-5392; Nakai,
Mitsuo/0000-0001-6076-756X; Fujioka, Shinsuke/0000-0001-8406-1772;
Arikawa, Yasunobu/0000-0002-3142-3060; Sakawa,
Youichi/0000-0003-4165-1048;
FU GEKKO XII operation group of the Institute of Laser Engineering, Osaka
University; LFEX development and operation group of the Institute of
Laser Engineering, Osaka University; plasma diagnostics operation group
of the Institute of Laser Engineering, Osaka University; US DOE by LLNL
[DE-AC52-07NA27344]; LDRD [12-ERD-062]; ILE's Joint Research Program
FX The authors would like to thank the anonymous referees for their
critical comments. We gratefully acknowledge the support of the GEKKO
XII operation group, the LFEX development and operation group and the
plasma diagnostics operation group of the Institute of Laser
Engineering, Osaka University. This work was performed under the
auspices of the US DOE by LLNL under contract DE-AC52-07NA27344 and LDRD
(no. 12-ERD-062), and partially funded by ILE's Joint Research Program.
NR 45
TC 13
Z9 14
U1 0
U2 31
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1367-2630
J9 NEW J PHYS
JI New J. Phys.
PD JUN 19
PY 2013
VL 15
AR 065010
DI 10.1088/1367-2630/15/6/065010
PG 11
WC Physics, Multidisciplinary
SC Physics
GA 166VD
UT WOS:000320585800001
ER
PT J
AU Chien, CC
Gruss, D
Di Ventra, M
Zwolak, M
AF Chien, Chih-Chun
Gruss, Daniel
Di Ventra, Massimiliano
Zwolak, Michael
TI Interaction-induced conducting-non-conducting transition of ultra-cold
atoms in one-dimensional optical lattices
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
ID NEGATIVE DIFFERENTIAL CONDUCTIVITY; TRANSPORT; DYNAMICS; SYSTEMS;
FERMIONS
AB The study of time-dependent, many-body transport phenomena is increasingly within reach of ultra-cold atom experiments. We show that the introduction of spatially inhomogeneous interactions, e.g., generated by optically controlled collisions, induce negative differential conductance in the transport of atoms in one-dimensional optical lattices. Specifically, we simulate the dynamics of interacting fermionic atoms via a micro-canonical transport formalism within both a mean-field and a higher-order approximation, as well as with a time-dependent density-matrix renormalization group (DMRG). For weakly repulsive interactions, a quasi-steady-state atomic current develops that is similar to the situation occurring for electronic systems subject to an external voltage bias. At the mean-field level, we find that this atomic current is robust against the details of how the interaction is switched on. Further, a conducting-non-conducting transition exists when the interaction imbalance exceeds some threshold from both our approximate and time-dependent DMRG simulations. This transition is preceded by the atomic equivalent of negative differential conductivity observed in transport across solid-state structures.
C1 [Chien, Chih-Chun] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Gruss, Daniel; Zwolak, Michael] Oregon State Univ, Dept Phys, Corvallis, OR 97331 USA.
[Di Ventra, Massimiliano] Univ Calif San Diego, Dept Phys, San Diego, CA 92093 USA.
RP Chien, CC (reprint author), Los Alamos Natl Lab, Div Theoret, MS B213, Los Alamos, NM 87545 USA.
EM chienchihchun@gmail.com; mpzwolak@gmail.com
RI Zwolak, Michael/G-2932-2013; Di Ventra, Massimiliano/E-1667-2011
OI Zwolak, Michael/0000-0001-6443-7816; Di Ventra,
Massimiliano/0000-0001-9416-189X
FU U S DOE through the LANL/LDRD Program; DOE [DE-FG02-05ER46204]; UC
Laboratories
FX CCC acknowledges the support of the U S DOE through the LANL/LDRD
Program. MD acknowledges support from the DOE grant DE-FG02-05ER46204
and UC Laboratories.
NR 32
TC 11
Z9 11
U1 1
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1367-2630
J9 NEW J PHYS
JI New J. Phys.
PD JUN 19
PY 2013
VL 15
AR 063026
DI 10.1088/1367-2630/15/6/063026
PG 15
WC Physics, Multidisciplinary
SC Physics
GA 166UZ
UT WOS:000320585300002
ER
PT J
AU Tang, W
Hicks, K
Keller, D
Kim, SH
Kim, HC
Adhikari, KP
Aghasyan, M
Amaryan, MJ
Anderson, MD
Pereira, SA
Baltzell, NA
Battaglieri, M
Bedlinskiy, I
Biselli, AS
Bono, J
Boiarinov, S
Briscoe, WJ
Burkert, VD
Carman, DS
Celentano, A
Chandavar, S
Charles, G
Cole, PL
Collins, P
Contalbrigo, M
Cortes, O
Crede, V
D'Angelo, A
Dashyan, N
De Vita, R
De Sanctis, E
Deur, A
Djalali, C
Doughty, D
Dupre, R
El Alaoui, A
El Fassi, L
Eugenio, P
Fedotov, G
Fegan, S
Fleming, JA
Gabrielyan, MY
Gevorgyan, N
Gilfoyle, GP
Giovanetti, KL
Girod, FX
Gohn, W
Golovatch, E
Gothe, RW
Griffioen, KA
Guidal, M
Guo, L
Hafidi, K
Hakobyan, H
Hanretty, C
Harrison, N
Heddle, D
Ho, D
Holtrop, M
Hyde, CE
Ilieva, Y
Ireland, DG
Ishkhanov, BS
Isupov, EL
Jo, HS
Joo, K
Khandaker, M
Khetarpal, P
Kim, A
Kim, W
Klein, FJ
Koirala, S
Kubarovsky, A
Kubarovsky, V
Kuleshov, SV
Livingston, K
Lu, HY
MacGregor, IJD
Mao, Y
Markov, N
Martinez, D
Mayer, M
McKinnon, B
Meyer, CA
Mokeev, V
Moutarde, H
Munevar, E
Camacho, CM
Nadel-Turonski, P
Nepali, CS
Niccolai, S
Niculescu, G
Niculescu, I
Osipenko, M
Ostrovidov, AI
Pappalardo, LL
Paremuzyan, R
Park, K
Park, S
Pasyuk, E
Phelps, E
Phillips, JJ
Pisano, S
Pogorelko, O
Pozdniakov, S
Price, JW
Procureur, S
Prok, Y
Protopopescu, D
Puckett, AJR
Raue, BA
Ripani, M
Rimal, D
Ritchie, BG
Rosner, G
Rossi, P
Sabatie, F
Saini, MS
Salgado, C
Schott, D
Schumacher, RA
Seraydaryan, H
Sharabian, YG
Smith, GD
Sober, DI
Sokhan, D
Stepanyan, SS
Stepanyan, S
Stoler, P
Strakovsky, II
Strauch, S
Taylor, CE
Tian, Y
Tkachenko, S
Torayev, B
Ungaro, M
Vernarsky, B
Vlassov, AV
Voskanyan, H
Voutier, E
Walford, NK
Watts, DP
Weinstein, LB
Weygand, DP
Wood, MH
Zachariou, N
Zana, L
Zhang, J
Zhao, ZW
Zonta, I
AF Tang, W.
Hicks, K.
Keller, D.
Kim, S. H.
Kim, H. C.
Adhikari, K. P.
Aghasyan, M.
Amaryan, M. J.
Anderson, M. D.
Pereira, S. Anefalos
Baltzell, N. A.
Battaglieri, M.
Bedlinskiy, I.
Biselli, A. S.
Bono, J.
Boiarinov, S.
Briscoe, W. J.
Burkert, V. D.
Carman, D. S.
Celentano, A.
Chandavar, S.
Charles, G.
Cole, P. L.
Collins, P.
Contalbrigo, M.
Cortes, O.
Crede, V.
D'Angelo, A.
Dashyan, N.
De Vita, R.
De Sanctis, E.
Deur, A.
Djalali, C.
Doughty, D.
Dupre, R.
El Alaoui, A.
El Fassi, L.
Eugenio, P.
Fedotov, G.
Fegan, S.
Fleming, J. A.
Gabrielyan, M. Y.
Gevorgyan, N.
Gilfoyle, G. P.
Giovanetti, K. L.
Girod, F. X.
Gohn, W.
Golovatch, E.
Gothe, R. W.
Griffioen, K. A.
Guidal, M.
Guo, L.
Hafidi, K.
Hakobyan, H.
Hanretty, C.
Harrison, N.
Heddle, D.
Ho, D.
Holtrop, M.
Hyde, C. E.
Ilieva, Y.
Ireland, D. G.
Ishkhanov, B. S.
Isupov, E. L.
Jo, H. S.
Joo, K.
Khandaker, M.
Khetarpal, P.
Kim, A.
Kim, W.
Klein, F. J.
Koirala, S.
Kubarovsky, A.
Kubarovsky, V.
Kuleshov, S. V.
Livingston, K.
Lu, H. Y.
MacGregor, I. J. D.
Mao, Y.
Markov, N.
Martinez, D.
Mayer, M.
McKinnon, B.
Meyer, C. A.
Mokeev, V.
Moutarde, H.
Munevar, E.
Camacho, C. Munoz
Nadel-Turonski, P.
Nepali, C. S.
Niccolai, S.
Niculescu, G.
Niculescu, I.
Osipenko, M.
Ostrovidov, A. I.
Pappalardo, L. L.
Paremuzyan, R.
Park, K.
Park, S.
Pasyuk, E.
Phelps, E.
Phillips, J. J.
Pisano, S.
Pogorelko, O.
Pozdniakov, S.
Price, J. W.
Procureur, S.
Prok, Y.
Protopopescu, D.
Puckett, A. J. R.
Raue, B. A.
Ripani, M.
Rimal, D.
Ritchie, B. G.
Rosner, G.
Rossi, P.
Sabatie, F.
Saini, M. S.
Salgado, C.
Schott, D.
Schumacher, R. A.
Seraydaryan, H.
Sharabian, Y. G.
Smith, G. D.
Sober, D. I.
Sokhan, D.
Stepanyan, S. S.
Stepanyan, S.
Stoler, P.
Strakovsky, I. I.
Strauch, S.
Taylor, C. E.
Tian, Ye
Tkachenko, S.
Torayev, B.
Ungaro, M.
Vernarsky, B.
Vlassov, A. V.
Voskanyan, H.
Voutier, E.
Walford, N. K.
Watts, D. P.
Weinstein, L. B.
Weygand, D. P.
Wood, M. H.
Zachariou, N.
Zana, L.
Zhang, J.
Zhao, Z. W.
Zonta, I.
CA CLAS Collaboration
TI Cross sections for the gamma p -> K*(+)Lambda and gamma p ->
K*(+)Sigma(0) reactions measured at CLAS
SO PHYSICAL REVIEW C
LA English
DT Article
ID SYSTEM
AB The first high-statistics cross sections for the reactions gamma p -> K*(+)Lambda and gamma p -> K*(+)Sigma(0) were measured using the CLAS detector at photon energies between threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. Differential cross sections are presented over the full range of the center-of-mass angles, and then fitted to Legendre polynomials to extract the total cross section. Results for the K*(+)Lambda final state are compared with two different calculations in an isobar and a Regge model, respectively. Theoretical calculations significantly underestimate the K*(+)Lambda total cross sections between 2.1 and 2.6 GeV, but are in better agreement with present data at higher photon energies.
C1 [Tang, W.; Hicks, K.; Keller, D.; Chandavar, S.] Ohio Univ, Athens, OH 45701 USA.
[Baltzell, N. A.; El Alaoui, A.; El Fassi, L.; Hafidi, K.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Pasyuk, E.; Ritchie, B. G.] Arizona State Univ, Tempe, AZ 85287 USA.
[Price, J. W.] Calif State Univ Dominguez Hills, Carson, CA 90747 USA.
[Wood, M. H.] Canisius Coll, Buffalo, NY 14208 USA.
[Biselli, A. S.; Ho, D.; Lu, H. Y.; Meyer, C. A.; Schumacher, R. A.; Vernarsky, B.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Collins, P.; Klein, F. J.; Sober, D. I.; Walford, N. K.] Catholic Univ Amer, Washington, DC 20064 USA.
[Charles, G.; Girod, F. X.; Moutarde, H.; Sabatie, F.] CEA, Ctr Saclay, Irfu, Serv Phys Nucl, F-91191 Gif Sur Yvette, France.
[Doughty, D.; Heddle, D.; Prok, Y.] Christopher Newport Univ, Newport News, VA 23606 USA.
[Gohn, W.; Harrison, N.; Joo, K.; Markov, N.; Ungaro, M.] Univ Connecticut, Storrs, CT 06269 USA.
[Fleming, J. A.; Watts, D. P.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA.
[Bono, J.; Gabrielyan, M. Y.; Guo, L.; Khetarpal, P.; Raue, B. A.; Rimal, D.] Florida Int Univ, Miami, FL 33199 USA.
[Crede, V.; Eugenio, P.; Ostrovidov, A. I.; Park, S.; Saini, M. S.] Florida State Univ, Tallahassee, FL 32306 USA.
[Briscoe, W. J.; Ilieva, Y.; Schott, D.; Strakovsky, I. I.; Strauch, S.] George Washington Univ, Washington, DC 20052 USA.
[Cole, P. L.; Cortes, O.; Martinez, D.; Taylor, C. E.] Idaho State Univ, Pocatello, ID 83209 USA.
[Contalbrigo, M.; Pappalardo, L. L.] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy.
[Aghasyan, M.; Pereira, S. Anefalos; De Sanctis, E.; Pisano, S.; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Battaglieri, M.; Celentano, A.; De Vita, R.; Osipenko, M.; Ripani, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[D'Angelo, A.; Zonta, I.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Dupre, R.; Guidal, M.; Jo, H. S.; Camacho, C. Munoz; Niccolai, S.] Inst Phys Nucl, F-91406 Orsay, France.
[Bedlinskiy, I.; Kuleshov, S. V.; Pogorelko, O.; Pozdniakov, S.; Vlassov, A. V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Giovanetti, K. L.; Niculescu, G.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA.
[Guo, L.; Kim, A.; Kim, W.; Park, K.; Stepanyan, S. S.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Voutier, E.] Univ Grenoble 1, CNRS, IN2P3, LPSC,INPG, Grenoble, France.
[Holtrop, M.; Zana, L.] Univ New Hampshire, Durham, NH 03824 USA.
[Khandaker, M.; Salgado, C.] Norfolk State Univ, Norfolk, VA 23504 USA.
[Adhikari, K. P.; Amaryan, M. J.; Hyde, C. E.; Koirala, S.; Mayer, M.; Nepali, C. S.; Seraydaryan, H.; Torayev, B.; Weinstein, L. B.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Kubarovsky, A.; Kubarovsky, V.; Stoler, P.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
[Gilfoyle, G. P.] Univ Richmond, Richmond, VA 23173 USA.
[D'Angelo, A.] Univ Roma Tor Vergata, I-00133 Rome, Italy.
[Fedotov, G.; Golovatch, E.; Ishkhanov, B. S.; Isupov, E. L.; Mokeev, V.] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia.
[Baltzell, N. A.; Djalali, C.; Fedotov, G.; Gothe, R. W.; Ilieva, Y.; Mao, Y.; Phelps, E.; Strauch, S.; Tian, Ye; Wood, M. H.; Zachariou, N.] Univ S Carolina, Columbia, SC 29208 USA.
[Boiarinov, S.; Burkert, V. D.; Carman, D. S.; Cole, P. L.; Deur, A.; Doughty, D.; Girod, F. X.; Heddle, D.; Kubarovsky, V.; Mokeev, V.; Munevar, E.; Nadel-Turonski, P.; Park, K.; Pasyuk, E.; Puckett, A. J. R.; Raue, B. A.; Sharabian, Y. G.; Stepanyan, S.; Ungaro, M.; Weygand, D. P.; Zhang, J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Hakobyan, H.; Kuleshov, S. V.] Univ Tecn Federico Santa Maria, Valparaiso, Chile.
[Anderson, M. D.; Fegan, S.; Ireland, D. G.; Livingston, K.; MacGregor, I. J. D.; McKinnon, B.; Phillips, J. J.; Protopopescu, D.; Rosner, G.; Smith, G. D.; Sokhan, D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland.
[Hanretty, C.; Prok, Y.; Tkachenko, S.; Zhao, Z. W.] Univ Virginia, Charlottesville, VA 22901 USA.
[Griffioen, K. A.] Coll William & Mary, Williamsburg, VA 23187 USA.
[Dashyan, N.; Gevorgyan, N.; Hakobyan, H.; Paremuzyan, R.; Voskanyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Kim, S. H.; Kim, H. C.] Inha Univ, Inchon 402751, South Korea.
RP Tang, W (reprint author), Ohio Univ, Athens, OH 45701 USA.
RI Zhang, Jixie/A-1461-2016; Celentano, Andrea/J-6190-2012; Kuleshov,
Sergey/D-9940-2013; Ireland, David/E-8618-2010; Charles,
Gabriel/B-7573-2015; El Alaoui, Ahmed/B-4638-2015; Schumacher,
Reinhard/K-6455-2013; Ishkhanov, Boris/E-1431-2012; Kim,
Hyun-Chul/B-5189-2008; Sabatie, Franck/K-9066-2015; Osipenko,
Mikhail/N-8292-2015; MacGregor, Ian/D-4072-2011; D'Angelo,
Annalisa/A-2439-2012; Meyer, Curtis/L-3488-2014; Lu, Haiyun/B-4083-2012
OI Celentano, Andrea/0000-0002-7104-2983; Kuleshov,
Sergey/0000-0002-3065-326X; Ireland, David/0000-0001-7713-7011;
Schumacher, Reinhard/0000-0002-3860-1827; Kim,
Hyun-Chul/0000-0002-8718-8661; Sabatie, Franck/0000-0001-7031-3975;
Osipenko, Mikhail/0000-0001-9618-3013; D'Angelo,
Annalisa/0000-0003-3050-4907; Meyer, Curtis/0000-0001-7599-3973;
FU Chilean Comision Nacional de Investigacion Cientifica y Tecnologica
(CONICYT); Italian Istituto Nazionale di Fisica Nucleare; French Centre
National de la Recherche Scientifique; French Commissariat a l'Energie
Atomique; US Department of Energy; National Science Foundation; UK
Science and Technology Facilities Council (STFC); Scottish Universities
Physics Alliance (SUPA); National Research Foundation of Korea; United
States Department of Energy [DE-AC05-84ER40150]
FX The authors thank the staff of the Thomas Jefferson National Accelerator
Facility who made this experiment possible. This work was supported in
part by the Chilean Comision Nacional de Investigacion Cientifica y
Tecnologica (CONICYT), the Italian Istituto Nazionale di Fisica
Nucleare, the French Centre National de la Recherche Scientifique, the
French Commissariat a l'Energie Atomique, the US Department of Energy,
the National Science Foundation, the UK Science and Technology
Facilities Council (STFC), the Scottish Universities Physics Alliance
(SUPA), and the National Research Foundation of Korea. The Southeastern
Universities Research Association (SURA) operates the Thomas Jefferson
National Accelerator Facility for the United States Department of Energy
under contract no. DE-AC05-84ER40150.
NR 20
TC 4
Z9 4
U1 0
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 19
PY 2013
VL 87
IS 6
AR 065204
DI 10.1103/PhysRevC.87.065204
PG 13
WC Physics, Nuclear
SC Physics
GA 169EK
UT WOS:000320760500003
ER
PT J
AU Van Isacker, P
Macchiavelli, AO
AF Van Isacker, P.
Macchiavelli, A. O.
TI Geometry of the shears mechanism in nuclei
SO PHYSICAL REVIEW C
LA English
DT Article
ID ROTATIONAL BAND; SPECTRA; PB-200; PB-199
AB The geometry of the shears mechanism in nuclei is derived from the nuclear shell model. This is achieved by taking the limit of large angular momenta (classical limit) of shell-model matrix elements.
C1 [Van Isacker, P.] CEA, DSM, CNRS, Grand Accelerateur Natl Ions Lourds,IN2P3, F-14076 Caen 5, France.
[Macchiavelli, A. O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Van Isacker, P (reprint author), CEA, DSM, CNRS, Grand Accelerateur Natl Ions Lourds,IN2P3, BP 55027, F-14076 Caen 5, France.
FU Office of Science, Office of Nuclear Physics, of the US Department of
Energy [DE-AC02-05CH11231]; FUSTIPEN (French-US Theory Institute for
Physics with Exotic Nuclei) under DOE [DE-FG02-10ER41700]
FX This work was partially supported (AOM) by the Director, Office of
Science, Office of Nuclear Physics, of the US Department of Energy under
Contract No. DE-AC02-05CH11231 and by FUSTIPEN (French-US Theory
Institute for Physics with Exotic Nuclei) under DOE Grant No.
DE-FG02-10ER41700.
NR 25
TC 2
Z9 2
U1 1
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 19
PY 2013
VL 87
IS 6
AR UNSP 061301
DI 10.1103/PhysRevC.87.061301
PG 4
WC Physics, Nuclear
SC Physics
GA 169EK
UT WOS:000320760500001
ER
PT J
AU Clarke, A
Imhoff, S
Gibbs, P
Cooley, J
Morris, C
Merrill, F
Hollander, B
Mariam, F
Ott, T
Barker, M
Tucker, T
Lee, WK
Fezzaa, K
Deriy, A
Patterson, B
Clarke, K
Montalvo, J
Field, R
Thoma, D
Smith, J
Teter, D
AF Clarke, Amy
Imhoff, Seth
Gibbs, Paul
Cooley, Jason
Morris, Christopher
Merrill, Frank
Hollander, Brian
Mariam, Fesseha
Ott, Thomas
Barker, Martha
Tucker, Tim
Lee, Wah-Keat
Fezzaa, Kamel
Deriy, Alex
Patterson, Brian
Clarke, Kester
Montalvo, Joel
Field, Robert
Thoma, Dan
Smith, James
Teter, David
TI Proton Radiography Peers into Metal Solidification
SO SCIENTIFIC REPORTS
LA English
DT Article
ID RAY VIDEO MICROSCOPY; X-RAY; IN-SITU; REAL-TIME; DIRECTIONAL
SOLIDIFICATION; INITIAL TRANSIENT; ALUMINUM-ALLOY; CU ALLOY; AL;
FRAGMENTATION
AB Historically, metals are cut up and polished to see the structure and to infer how processing influences the evolution. We can now peer into a metal during processing without destroying it using proton radiography. Understanding the link between processing and structure is important because structure profoundly affects the properties of engineering materials. Synchrotron x-ray radiography has enabled real-time glimpses into metal solidification. However, x-ray energies favor the examination of small volumes and low density metals. Here we use high energy proton radiography for the first time to image a large metal volume (>10,000 mm(3)) during melting and solidification. We also show complementary x-ray results from a small volume (<1 mm(3)), bridging four orders of magnitude. Real-time imaging will enable efficient process development and the control of structure evolution to make materials with intended properties; it will also permit the development of experimentally informed, predictive structure and process models.
C1 [Clarke, Amy; Imhoff, Seth; Gibbs, Paul; Cooley, Jason; Morris, Christopher; Merrill, Frank; Hollander, Brian; Mariam, Fesseha; Ott, Thomas; Barker, Martha; Tucker, Tim; Patterson, Brian; Clarke, Kester; Montalvo, Joel; Field, Robert; Thoma, Dan; Smith, James; Teter, David] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Lee, Wah-Keat] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Fezzaa, Kamel; Deriy, Alex] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Clarke, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM aclarke@lanl.gov
OI Hollander, Brian/0000-0003-1836-2424; Morris,
Christopher/0000-0003-2141-0255; Patterson, Brian/0000-0001-9244-7376;
Merrill, Frank/0000-0003-0603-735X
FU A.C.'s Early Career award from the U.S. DOE, Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering; U.S. DOE
[DE-AC02-06CH11357]
FX We thank the proton radiography team (LANL) for providing support during
these experiments and T.V. Beard, R.W. Hudson, B.S. Folks, D.A. Aragon,
T. Wheeler, P.K. Kennedy, and M.P. Maez for providing machining support
(LANL). We also thank D.A. Korzekwa, D.L. Hammon, R.R. Trujillo, S.W.
Quintana, R.L. Edwards, D.F. Knowlton, A.M. Kelly, J.J. Hill, F.
O'Neill, and M.G. Emigh for helping to prepare for the proton
radiography experiments and appreciate the helpful advice we received
from J.C. Foley, R.M. Aikin and P.S. Dunn (LANL). We gratefully
acknowledge the support of the U.S. Department of Energy (DOE) through
the LANL/LDRD Program for this work. A.C., S.I., P.G. and M.B.
gratefully acknowledge support from A.C.'s Early Career award from the
U.S. DOE, Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering. Use of the Advanced Photon Source, an Office
of Science User Facility operated for the U.S. DOE Office of Science by
Argonne National Laboratory, was supported by the U.S. DOE under
Contract No. DE-AC02-06CH11357; x-ray data were collected at the Sector
32-ID-C beamline.
NR 46
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U1 0
U2 17
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 19
PY 2013
VL 3
AR 2020
DI 10.1038/srep02020
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 166SF
UT WOS:000320577000002
PM 23779063
ER
PT J
AU Silverstein, HJ
Sharma, AZ
Stoller, AJ
Cruz-Kan, K
Flacau, R
Donaberger, RL
Zhou, HD
Manuel, P
Huq, A
Kolesnikov, AI
Wiebe, CR
AF Silverstein, H. J.
Sharma, A. Z.
Stoller, A. J.
Cruz-Kan, K.
Flacau, R.
Donaberger, R. L.
Zhou, H. D.
Manuel, P.
Huq, A.
Kolesnikov, A. I.
Wiebe, C. R.
TI Phase diagram and magnetic structures of the Co-bearing dugganites
Pb(3)TeCo(3)A(2)O(14) (A = V, P)
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID POWDER DIFFRACTION; LANGASITE FAMILY; CRYSTALS; GROWTH
AB Exhibiting rich magnetic behaviour and potentially multiferroic properties, the dugganites, a Te6+ containing subgroup of the langasite series, are an attractive family of compounds for future study. It was recently shown that Pb-bearing members of the dugganite series undergo distortions away from the P321 symmetry that is characteristic of the langasites. Here, we detail the consequences these distortions have on the magnetism exhibited by Pb3TeCo3V2O14 and Pb3TeCo3P2O14, solving the magnetic structures of both compounds with respect to a new supercell. Using neutron scattering and magnetic susceptibility measurements, we show that small applied magnetic fields can seriously perturb the delicate magnetic states in both of these systems. This is further demonstrated by presenting how doping P5+ onto the nonmagnetic V5+ site completely changes the magnetic structure from either of the end series members. Finally, it is shown using inelastic neutron scattering and magnetic susceptibility measurements that Pb3TeCo3V2O14 can be characterized using a model for isosceles trimers, which do not exist in the previously reported P321 subcell.
C1 [Silverstein, H. J.; Wiebe, C. R.] Univ Manitoba, Dept Chem, Winnipeg, MB R3T 2N2, Canada.
[Sharma, A. Z.; Stoller, A. J.; Cruz-Kan, K.; Wiebe, C. R.] Univ Winnipeg, Dept Chem, Winnipeg, MB R3B 2E9, Canada.
[Flacau, R.; Donaberger, R. L.] Chalk River Labs, Natl Res Council, Chalk River, ON K0J 1J0, Canada.
[Zhou, H. D.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Zhou, H. D.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA.
[Manuel, P.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England.
[Huq, A.; Kolesnikov, A. I.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA.
RP Silverstein, HJ (reprint author), Univ Manitoba, Dept Chem, Winnipeg, MB R3T 2N2, Canada.
EM harlyn.silverstein@gmail.com
RI Huq, Ashfia/J-8772-2013; Kolesnikov, Alexander/I-9015-2012; Zhou,
Haidong/O-4373-2016;
OI Huq, Ashfia/0000-0002-8445-9649; Kolesnikov,
Alexander/0000-0003-1940-4649; Silverstein, Harlyn/0000-0002-7743-9842
FU NSERC; ACS; CFI; Vanier CGS (NSERC); MGS; University of Manitoba; NSERC
USRA; Canada Research Chair (Tier II); Scientific User Facilities
Division, Office of Basic Energy Sciences, US Department of Energy (APS)
[DE-AC02-06CH11357]
FX We would like to thank NSERC, The ACS Petroleum Fund, and the CFI for
funding this project. In addition, HJS graciously thanks the Vanier CGS
(NSERC), MGS, and the University of Manitoba for funding. KC-K would
like to acknowledge the NSERC USRA program for funding. CRW thanks the
Canada Research Chair (Tier II) program for additional funding. We would
also like to thank the support staff at the Canadian Neutron Beam Centre
in Chalk River, as well as the staff at the Advanced Photon Source at
Argonne, IL. Portions of this research at the Oak Ridge National
Laboratory's SNS and Argonne National Laboratory's APS were sponsored by
the Scientific User Facilities Division, Office of Basic Energy
Sciences, US Department of Energy (APS under Contract No.
DE-AC02-06CH11357). Experiments at the ISIS Pulsed Neutron Source were
supported by a beamtime allocation from the Science and Technology
Facilities Council. The authors would like to thank T Sherline, D
Khalyavin and M Bieringer for useful discussions.
NR 31
TC 4
Z9 4
U1 2
U2 37
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD JUN 19
PY 2013
VL 25
IS 24
AR 246004
DI 10.1088/0953-8984/25/24/246004
PG 8
WC Physics, Condensed Matter
SC Physics
GA 154KJ
UT WOS:000319673800017
PM 23707984
ER
PT J
AU Yue, GQ
Wu, S
Shen, B
Wang, SY
Wang, CZ
Ho, KM
Kramer, MJ
Chen, LY
AF Yue, G. Q.
Wu, S.
Shen, B.
Wang, S. Y.
Wang, C. Z.
Ho, K. M.
Kramer, M. J.
Chen, L. Y.
TI Effects of strontium impurity on the structure and dynamics of Al88Si12
liquid
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID INITIO MOLECULAR-DYNAMICS; VELOCITY CORRELATION-FUNCTIONS;
DIFFUSION-COEFFICIENTS; ALLOYS; METALS; SET
AB The effects of strontium modification on the structure and dynamics of Al88Si12 liquid are studied by means of ab initio molecular dynamics simulations. By replacing 0.5% and 4.0% of Al with Sr, we show that the addition of Sr lowers the self-diffusion of Al and Si of the liquid and reduces the nearest-neighbor correlation between Si atoms. The simulation provides an explanation for the change in morphology of the eutectic phases observed in rapidly solidified Al-Si alloys modified with Sr.
C1 [Yue, G. Q.; Wu, S.; Shen, B.; Wang, S. Y.; Chen, L. Y.] Fudan Univ, Shanghai Ultra Precis Opt Mfg Engn Ctr, Shanghai 200433, Peoples R China.
[Yue, G. Q.; Wu, S.; Shen, B.; Wang, S. Y.; Chen, L. Y.] Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China.
[Wu, S.; Wang, S. Y.; Wang, C. Z.; Ho, K. M.; Kramer, M. J.] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA.
[Wu, S.; Wang, S. Y.; Wang, C. Z.; Ho, K. M.; Kramer, M. J.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Wang, S. Y.] Key Lab Informat Sci Electromagnet Waves MoE, Shanghai 200433, Peoples R China.
RP Yue, GQ (reprint author), Fudan Univ, Shanghai Ultra Precis Opt Mfg Engn Ctr, Shanghai 200433, Peoples R China.
EM sywang@fudan.ac.cn; wangcz@ameslab.gov
RI Wang, Songyou/H-4529-2011
OI Wang, Songyou/0000-0002-4249-3427
FU Fudan University Graduate School [2011033]; NSF of China [10974029];
National Basic Research Program of China [2010CB933703, 2012CB934303];
Ministry of Education of China [20100071110025]; US Department of Energy
by Iowa State University [DE-AC02-07CH11358]; US Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX SW acknowledges the support from the exchange program fund for doctoral
students under the Fudan University Graduate School (File No. 2011033).
SYW was partially supported by the NSF of China (Grant No. 10974029),
National Basic Research Program of China (No. 2010CB933703 and
2012CB934303), and Doctoral Fund of the Ministry of Education of China
(No. 20100071110025). We would like to thank Prakash Srirangam, now at
Queen's University, and Sumanth Shankar of McMaster University for their
contributions in collecting and analyzing the experimental data used in
the comparisons. Ames Laboratory is operated for the US Department of
Energy by Iowa State University under Contract No. DE-AC02-07CH11358.
This work was supported by the Director for Energy Research, Office of
Basic Energy Sciences, Materials Science and Engineering Division,
including a grant of computer time at the National Energy Research
Supercomputing Center (NERSC) in Berkeley. Use of the Advanced Photon
Source was supported by the US Department of Energy, Office of Science,
Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
NR 29
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Z9 5
U1 2
U2 22
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD JUN 19
PY 2013
VL 25
IS 24
AR 245102
DI 10.1088/0953-8984/25/24/245102
PG 7
WC Physics, Condensed Matter
SC Physics
GA 154KJ
UT WOS:000319673800002
PM 23685677
ER
PT J
AU Dickel, DE
Visel, A
Pennacchio, LA
AF Dickel, D. E.
Visel, A.
Pennacchio, L. A.
TI Functional anatomy of distant-acting mammalian enhancers
SO PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
LA English
DT Review
DE enhancer; gene regulation; mutation; mouse genomics
ID PROSTATE-CANCER RISK; VAN-BUCHEM-DISEASE; BETA-GLOBIN GENE; IN-VIVO;
TARGETED DELETION; VIRUS INDUCTION; CROHNS-DISEASE; HUMAN GENOME;
EXPRESSION; GATA4
AB Transcriptional enhancers are a major class of functional element embedded in the vast non-coding portion of the human genome. Acting over large genomic distances, enhancers play critical roles in the tissue and cell type-specific regulation of genes, and there is mounting evidence that they contribute to the aetiology of many human diseases. Methods for genome-wide mapping of enhancer regions are now available, but the functional architecture contained within human enhancer elements remains unclear. Here, we review recent approaches aimed at understanding the functional anatomy of individual enhancer elements, using systematic qualitative and quantitative assessments of mammalian enhancer variants in cultured cells and in vivo. These studies provide direct insight into common architectural characteristics of enhancers including the presence of multiple transcription factor-binding sites and the mixture of both transcriptionally activating and repressing domains within the same enhancer. Despite such progress in understanding the functional composition of enhancers, the inherent complexities of enhancer anatomy continue to limit our ability to predict the impact of sequence changes on in vivo enhancer function. While providing an initial glimpse into the mutability of mammalian enhancers, these observations highlight the continued need for experimental enhancer assessment as genome sequencing becomes routine in the clinic.
C1 [Dickel, D. E.; Visel, A.; Pennacchio, L. A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Genom Div, Berkeley, CA 94720 USA.
[Visel, A.; Pennacchio, L. A.] US Dept Energy Joint Genome Inst, Walnut Creek, CA 94598 USA.
RP Pennacchio, LA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Genom Div, MS 84-171, Berkeley, CA 94720 USA.
EM lapennacchio@lbl.gov
RI Visel, Axel/A-9398-2009;
OI Visel, Axel/0000-0002-4130-7784; Dickel, Diane/0000-0001-5497-6824
FU National Institute of Neurological Disorders and Stroke [R01NS062859A];
National Human Genome Research Institute [R01HG003988, U54HG006997];
NIDCR [U01-DE020060]; National Heart Lung and Blood Institute
[5T32HL098057]; Department of Energy, University of California
[DE-AC02-05CH11231]
FX We thank Nadav Ahituv and Marianna Ivanov for their work in
characterizing the SALL1-D5 enhancer. A.V. and L.A.P. were supported by
National Institute of Neurological Disorders and Stroke grant no.
R01NS062859A and by National Human Genome Research Institute grants nos.
R01HG003988 and U54HG006997. A.V. was supported by NIDCR grant no.
U01-DE020060. D.E.D. was supported by the National Heart Lung and Blood
Institute grant no. 5T32HL098057 (to Children's Hospital Oakland
Research Institute). Research was conducted at the E.O. Lawrence
Berkeley National Laboratory and performed under Department of Energy
Contract DE-AC02-05CH11231, University of California. All animal work
was reviewed and approved by the LBNL Animal Welfare and Research
Commttee.
NR 61
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U1 0
U2 19
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 0962-8436
J9 PHILOS T R SOC B
JI Philos. Trans. R. Soc. B-Biol. Sci.
PD JUN 19
PY 2013
VL 368
IS 1620
AR 20120359
DI 10.1098/rstb.2012.0359
PG 9
WC Biology
SC Life Sciences & Biomedicine - Other Topics
GA 139WD
UT WOS:000318614800003
PM 23650633
ER
PT J
AU Dixit, PD
AF Dixit, Purushottam D.
TI Quantifying Extrinsic Noise in Gene Expression Using the Maximum Entropy
Framework
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID ESCHERICHIA-COLI; SINGLE-CELL; SACCHAROMYCES-CEREVISIAE; REGULATORY
NETWORKS; PROTEIN EXPRESSION; STOCHASTICITY; FLUCTUATIONS; LEVEL
AB We present a maximum entropy framework to separate intrinsic and extrinsic contributions to noisy gene expression solely from the profile of expression. We express the experimentally accessible probability distribution of the copy number of the gene product (mRNA or protein) by accounting for possible variations in extrinsic factors. The distribution of extrinsic factors is estimated using the maximum entropy principle. Our results show that extrinsic factors qualitatively and quantitatively affect the probability distribution of the gene product. We work out, in detail, the transcription of mRNA from a constitutively expressed promoter in Escherichia coli. We suggest that the variation in extrinsic factors may account for the observed wider-than-Poisson distribution of mRNA copy numbers. We successfully test our framework on a numerical simulation of a simple gene expression scheme that accounts for the variation in extrinsic factors. We also make falsifiable predictions, some of which are tested on previous experiments in E. coli whereas others need verification. Application of the presented framework to more complex situations is also discussed.
C1 Brookhaven Natl Lab, Dept Biosci, Upton, NY 11973 USA.
RP Dixit, PD (reprint author), Brookhaven Natl Lab, Dept Biosci, Upton, NY 11973 USA.
EM pdixit@bnl.gov
FU Office of Biological Research of the U.S. Department of Energy [PM-031]
FX This work was supported by grant No. PM-031 from the Office of
Biological Research of the U.S. Department of Energy.
NR 35
TC 5
Z9 5
U1 1
U2 11
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
J9 BIOPHYS J
JI Biophys. J.
PD JUN 18
PY 2013
VL 104
IS 12
BP 2743
EP 2750
DI 10.1016/j.bpj.2013.05.010
PG 8
WC Biophysics
SC Biophysics
GA 169DI
UT WOS:000320757100020
PM 23790383
ER
PT J
AU Rau, GH
Carroll, SA
Bourcier, WL
Singleton, MJ
Smith, MM
Aines, RD
AF Rau, Greg H.
Carroll, Susan A.
Bourcier, William L.
Singleton, Michael J.
Smith, Megan M.
Aines, Roger D.
TI Direct electrolytic dissolution of silicate minerals for air CO2
mitigation and carbon-negative H-2 production
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE air capture; carbon dioxide; electrochemistry; hydrogen; mineral
weathering
ID AMBIENT AIR; CAPTURE; DIOXIDE; ALKALINITY; SEAWATER; STORAGE; WORLD;
CYCLE; POWER; COST
AB We experimentally demonstrate the direct coupling of silicate mineral dissolution with saline water electrolysis and H-2 production to effect significant air CO2 absorption, chemical conversion, and storage in solution. In particular, we observed as much as a 10(5)-fold increase in OH-concentration (pH increase of up to 5.3 units) relative to experimental controls following the electrolysis of 0.25 M Na2SO4 solutions when the anode was encased in powdered silicate mineral, either wollastonite or an ultramafic mineral. After electrolysis, full equilibration of the alkalized solution with air led to a significant pH reduction and as much as a 45-fold increase in dissolved inorganic carbon concentration. This demonstrated significant spontaneous air CO2 capture, chemical conversion, and storage as a bicarbonate, predominantly as NaHCO3. The excess OH-initially formed in these experiments apparently resulted via neutralization of the anolyte acid, H2SO4, by reaction with the base mineral silicate at the anode, producing mineral sulfate and silica. This allowed the NaOH, normally generated at the cathode, to go unneutralized and to accumulate in the bulk electrolyte, ultimately reacting with atmospheric CO2 to form dissolved bicarbonate. Using nongrid or nonpeak renewable electricity, optimized systems at large scale might allow relatively high-capacity, energy-efficient (<300 kJ/mol of CO2 captured), and inexpensive (<$100 per tonne of CO2 mitigated) removal of excess air CO2 with production of carbon-negative H-2. Furthermore, when added to the ocean, the produced hydroxide and/or (bi) carbonate could be useful in reducing sea-to-air CO2 emissions and in neutralizing or offsetting the effects of ongoing ocean acidification.
C1 [Rau, Greg H.] Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA.
[Rau, Greg H.; Carroll, Susan A.; Bourcier, William L.; Singleton, Michael J.; Smith, Megan M.; Aines, Roger D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Rau, GH (reprint author), Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA.
EM rau4@llnl.gov
FU LLNL [B589409]; US Department of Energy by the LLNL [DE-AC52-07NA27344]
FX We thank V. Genetti [Lawrence Livermore National Laboratory (LLNL)] for
performing the inductively coupled plasma MS analyses. This study was
funded, in part, by Subcontract B589409 from the LLNL to the University
of California, Santa Cruz. This work was performed under the auspices of
the US Department of Energy by the LLNL under Contract
DE-AC52-07NA27344.
NR 46
TC 11
Z9 12
U1 7
U2 49
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 18
PY 2013
VL 110
IS 25
BP 10095
EP 10100
DI 10.1073/pnas.1222358110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179DU
UT WOS:000321500200027
PM 23729814
ER
PT J
AU Akola, J
Kohara, S
Ohara, K
Fujiwara, A
Watanabe, Y
Masuno, A
Usuki, T
Kubo, T
Nakahira, A
Nitta, K
Uruga, T
Weber, JKR
Benmore, CJ
AF Akola, Jaakko
Kohara, Shinji
Ohara, Koji
Fujiwara, Akihiko
Watanabe, Yasuhiro
Masuno, Atsunobu
Usuki, Takeshi
Kubo, Takashi
Nakahira, Atsushi
Nitta, Kiyofumi
Uruga, Tomoya
Weber, J. K. Richard
Benmore, Chris J.
TI Network topology for the formation of solvated electrons in binary
CaO-Al2O3 composition glasses
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE amorphous network; glass topology; electron localization
ID CALCIUM ALUMINATE GLASSES; DENSITY-FUNCTIONAL CALCULATIONS;
MOLECULAR-DYNAMICS; HYDRATED ELECTRON; DIFFRACTION; PERSPECTIVE;
NEUTRON; SYSTEMS; NMR
AB Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments (X-ray and neutron diffraction, extended X-ray absorption fine structure) and result in cohesive energies close to the crystalline ground states. The O-Ca and O-Al coordination numbers are similar in the eutectic 64 mol % CaO (64CaO) glass [comparable to 12CaO center dot 7Al(2)O(3) (C12A7)], and the glass structure comprises a topologically disordered cage network with large-sized rings. This topologically disordered network is the signature of the high glass-forming ability of 64CaO glass and high viscosity in the melt. Analysis of the electronic structure reveals that the atomic charges for Al are comparable to those for Ca, and the bond strength of Al-O is stronger than that of Ca-O, indicating that oxygen is more weakly bound by cations in CaO-rich glass. The analysis shows that the lowest unoccupied molecular orbitals occurs in cavity sites, suggesting that the C12A7 electride glass [Kim SW, Shimoyama T, Hosono H (2011) Science 333(6038): 7174] synthesized from a strongly reduced high-temperature melt can host solvated electrons and bipolarons. Calculations of 64CaO glass structures with few subtracted oxygen atoms (additional electrons) confirm this observation. The comparable atomic charges and coordination of the cations promote more efficient elemental mixing, and this is the origin of the extended cage structure and hosted solvated (trapped) electrons in the C12A7 glass.
C1 [Akola, Jaakko] Tampere Univ Technol, Dept Phys, FI-33101 Tampere, Finland.
[Akola, Jaakko] Aalto Univ, Dept Appl Phys, Ctr Excellence Computat Nanosci, FI-00076 Aalto, Finland.
[Akola, Jaakko] Forschungszentrum Julich, Peter Grunberg Inst PGI 1, D-52425 Julich, Germany.
[Kohara, Shinji; Ohara, Koji; Fujiwara, Akihiko; Nitta, Kiyofumi; Uruga, Tomoya] Japan Synchrotron Radiat Res Inst SPring 8, Res & Utilizat Div, Sayo, Hyogo 6795198, Japan.
[Watanabe, Yasuhiro; Masuno, Atsunobu] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan.
[Usuki, Takeshi] Yamagata Univ, Grad Sch Sci & Engn, Yamagata 9908560, Japan.
[Kubo, Takashi; Nakahira, Atsushi] Osaka Prefecture Univ, Sakai, Osaka 5998531, Japan.
[Weber, J. K. Richard] Mat Dev Inc, Arlington Hts, IL 60004 USA.
[Weber, J. K. Richard; Benmore, Chris J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Kohara, S (reprint author), Japan Synchrotron Radiat Res Inst SPring 8, Res & Utilizat Div, Sayo, Hyogo 6795198, Japan.
EM kohara@spring8.or.jp; benmore@aps.anl.gov
RI Akola, Jaakko/L-6076-2013; Masuno, Atsunobu/E-3514-2014; Fujiwara,
Akihiko/F-3031-2015;
OI Akola, Jaakko/0000-0001-9037-7095; Masuno, Atsunobu/0000-0003-0667-9782;
Fujiwara, Akihiko/0000-0002-1319-388X; Benmore,
Chris/0000-0001-7007-7749
FU US Department of Energy at the Advanced Photon Source
[DE-AC02-06CH11357]; Ministry of Education, Culture, Sports, Science,
and Technology of Japan [24350111]; Japan Science and Technology Agency;
Academy of Finland via the Strategic Japanese-Finland Cooperative
Program on "Functional Materials"; Academy of Finland through its
Centres of Excellence Program [251748]
FX We thank Mr. J. Yahiro and Mr. K. Kato for experimental assistance.
Discussions with Prof. T. Yamamoto and Dr. K. Fukumi are gratefully
appreciated. The synchrotron radiation experiment was carried out with
the approval of the Japan Synchrotron Radiation Research Institute
(Proposals 2006B1461 and 2008B1166), and the DFT calculations were
carried out on the Juropa (Xeon 5570) computers in the Forschungszentrum
Julich and Cray XT4/XT5 computers in CSC the IT Center for Science Ltd.,
Finland. This work was supported by the US Department of Energy at the
Advanced Photon Source under Contract DE-AC02-06CH11357 and by a
Grant-in-Aid for Scientific Research on Innovative Areas (24350111) from
the Ministry of Education, Culture, Sports, Science, and Technology of
Japan. S. K. and J. A. were supported by the Japan Science and
Technology Agency and the Academy of Finland via the Strategic
Japanese-Finland Cooperative Program on "Functional Materials"
2009-2012. J. A. acknowledges further support from the Academy of
Finland through its Centres of Excellence Program (Project 251748).
NR 46
TC 15
Z9 15
U1 2
U2 47
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 18
PY 2013
VL 110
IS 25
BP 10129
EP 10134
DI 10.1073/pnas.1300908110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179DU
UT WOS:000321500200033
PM 23723350
ER
PT J
AU Ansong, C
Wu, S
Meng, D
Liu, XW
Brewer, HM
Kaiser, BLD
Nakayasu, ES
Cort, JR
Pevzner, P
Smith, RD
Heffron, F
Adkins, JN
Pasa-Tolic, L
AF Ansong, Charles
Wu, Si
Meng, Da
Liu, Xiaowen
Brewer, Heather M.
Kaiser, Brooke L. Deatherage
Nakayasu, Ernesto S.
Cort, John R.
Pevzner, Pavel
Smith, Richard D.
Heffron, Fred
Adkins, Joshua N.
Pasa-Tolic, Ljiljana
TI Top-down proteomics reveals a unique protein S-thiolation switch in
Salmonella Typhimurium in response to infection-like conditions
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
ID ENTERICA SEROVAR TYPHIMURIUM; MASS-SPECTROMETRY; GLUTATHIONYLATED
PROTEINS; BACILLUS-SUBTILIS; VIRULENCE FACTORS; ESCHERICHIA-COLI;
OXIDATIVE STRESS; EXPRESSION; SECRETION; DISCOVERY
AB Characterization of the mature protein complement in cells is crucial for a better understanding of cellular processes on a systems-wide scale. Toward this end, we used single-dimension ultra-high-pressure liquid chromatography mass spectrometry to investigate the comprehensive "intact" proteome of the Gram-negative bacterial pathogen Salmonella Typhimurium. Top-down proteomics analysis revealed 563 unique proteins including 1,665 proteoforms generated by posttranslational modifications (PTMs), representing the largest microbial top-down dataset reported to date. We confirmed many previously recognized aspects of Salmonella biology and bacterial PTMs, and our analysis also revealed several additional biological insights. Of particular interest was differential utilization of the protein S-thiolation forms S-glutathionylation and S-cysteinylation in response to infection-like conditions versus basal conditions. This finding of a S-glutathionylation-to-S-cysteinylation switch in a condition-specific manner was corroborated by bottom-up proteomics data and further by changes in corresponding biosynthetic pathways under infection-like conditions and during actual infection of host cells. This differential utilization highlights underlying metabolic mechanisms that modulate changes in cellular signaling, and represents a report of S-cysteinylation in Gram-negative bacteria. Additionally, the functional relevance of these PTMs was supported by protein structure and gene deletion analyses. The demonstrated utility of our simple proteome-wide intact protein level measurement strategy for gaining biological insight should promote broader adoption and applications of top-down proteomics approaches.
C1 [Ansong, Charles; Kaiser, Brooke L. Deatherage; Nakayasu, Ernesto S.; Cort, John R.; Smith, Richard D.; Adkins, Joshua N.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Wu, Si; Brewer, Heather M.; Pasa-Tolic, Ljiljana] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Meng, Da] Pacific NW Natl Lab, Computat Sci & Math Div, Richland, WA 99352 USA.
[Liu, Xiaowen] Indiana Univ Purdue Univ, Sch Informat, Indianapolis, IN 46202 USA.
[Pevzner, Pavel] Univ Calif San Diego, Dept Comp Sci & Engn, La Jolla, CA 92093 USA.
[Liu, Xiaowen] Indiana Univ Sch Med, Ctr Computat Biol & Bioinformat, Indianapolis, IN 46202 USA.
[Heffron, Fred] Oregon Hlth & Sci Univ, Dept Microbiol & Immunol, Portland, OR 97239 USA.
RP Ansong, C (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM Charles.ansong@pnnl.gov; joshua.adkins@pnnl.gov;
Ljiljana.pasatolic@pnnl.gov
RI Smith, Richard/J-3664-2012
OI Smith, Richard/0000-0002-2381-2349
FU National Institute of General Medicine; National Institutes of Health
(NIH) [GM094623]; National Institute of Allergy and Infectious Diseases,
National Institutes of Health (NIH)/Department of Health and Human
Services [Y1-AI-8401]; Department of Energy (DOE) Office of Biological
and Environmental Research (BER); NIH [5P41RR018522-10]; National
Institute of General Medical Sciences [8 P41 GM103493-10]; EMSL; DOE
[DE-AC05-76RLO 1830]
FX We gratefully acknowledge the contribution of Nikola Tolic, Tujin Shi,
and Matthew Monroe for assistance in preparing this manuscript. Research
described was partly supported by the National Institute of General
Medicine, National Institutes of Health (NIH) through Grant GM094623 and
National Institute of Allergy and Infectious Diseases, National
Institutes of Health (NIH)/Department of Health and Human Services,
through Interagency Agreement Y1-AI-8401. Project website with data and
protocols: www.sysbep.org. Proteomics capabilities were developed under
support from the Department of Energy (DOE) Office of Biological and
Environmental Research (BER), NIH Grant 5P41RR018522-10, and National
Institute of General Medical Sciences Grant 8 P41 GM103493-10. Work was
performed in the W. R. Wiley Environmental Molecular Sciences Laboratory
(EMSL), a DOE-BER national scientific user facility located at Pacific
Northwest National Laboratory (PNNL), and partly supported by funds from
EMSL intramural research projects and EMSL capability development
projects. PNNL is a multiprogram national laboratory operated by
Battelle Memorial Institute for the DOE under Contract DE-AC05-76RLO
1830.
NR 49
TC 57
Z9 58
U1 1
U2 38
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 18
PY 2013
VL 110
IS 25
BP 10153
EP 10158
DI 10.1073/pnas.1221210110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179DU
UT WOS:000321500200037
PM 23720318
ER
PT J
AU Kern, M
McGeehan, JE
Streeter, SD
Martin, RNA
Besser, K
Elias, L
Eborall, W
Malyon, GP
Payne, CM
Himmel, ME
Schnorr, K
Beckham, GT
Cragg, SM
Bruce, NC
McQueen-Mason, SJ
AF Kern, Marcelo
McGeehan, John E.
Streeter, Simon D.
Martin, Richard N. A.
Besser, Katrin
Elias, Luisa
Eborall, Will
Malyon, Graham P.
Payne, Christina M.
Himmel, Michael E.
Schnorr, Kirk
Beckham, Gregg T.
Cragg, Simon M.
Bruce, Neil C.
McQueen-Mason, Simon J.
TI Structural characterization of a unique marine animal family 7
cellobiohydrolase suggests a mechanism of cellulase salt tolerance
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE gribble; carbohydrate degrading enzymes
ID PHANEROCHAETE-CHRYSOSPORIUM CEL7D; TRICHODERMA-REESEI;
CRYSTAL-STRUCTURES; RECALCITRANT POLYSACCHARIDES; MOLECULAR
CHARACTERIZATION; CELLOBIOSE DEHYDROGENASE; MELANOCARPUS-ALBOMYCES;
TALAROMYCES-EMERSONII; GLYCOSYL HYDROLASES; DEGRADATION
AB Nature uses a diversity of glycoside hydrolase (GH) enzymes to convert polysaccharides to sugars. As lignocellulosic biomass deconstruction for biofuel production remains costly, natural GH diversity offers a starting point for developing industrial enzymes, and fungal GH family 7 (GH7) cellobiohydrolases, in particular, provide significant hydrolytic potential in industrial mixtures. Recently, GH7 enzymes have been found in other kingdoms of life besides fungi, including in animals and protists. Here, we describe the in vivo spatial expression distribution, properties, and structure of a unique endogenous GH7 cellulase from an animal, the marine wood borer Limnoria quadripunctata (LqCel7B). RT-quantitative PCR and Western blot studies show that LqCel7B is expressed in the hepatopancreas and secreted into the gut for wood degradation. We produced recombinant LqCel7B, with which we demonstrate that LqCel7B is a cellobiohydrolase and obtained four high-resolution crystal structures. Based on a crystallographic and computational comparison of LqCel7B to the well-characterized Hypocrea jecorina GH7 cellobiohydrolase, LqCel7B exhibits an extended substrate-binding motif at the tunnel entrance, which may aid in substrate acquisition and processivity. Interestingly, LqCel7B exhibits striking surface charges relative to fungal GH7 enzymes, which likely results from evolution in marine environments. We demonstrate that LqCel7B stability and activity remain unchanged, or increase at high salt concentration, and that the L. quadripunctata GH mixture generally contains cellulolytic enzymes with highly acidic surface charge compared with enzymes derived from terrestrial microbes. Overall, this study suggests that marine cellulases offer significant potential for utilization in high-solids industrial biomass conversion processes.
C1 [Kern, Marcelo; Besser, Katrin; Elias, Luisa; Eborall, Will; Bruce, Neil C.; McQueen-Mason, Simon J.] Univ York, Dept Biol, Ctr Novel Agr Prod, York YO10 5DD, N Yorkshire, England.
[McGeehan, John E.; Streeter, Simon D.; Martin, Richard N. A.; Malyon, Graham P.; Cragg, Simon M.] Univ Portsmouth, Sch Biol Sci, Portsmouth PO1 2DY, Hants, England.
[Payne, Christina M.] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA.
[Payne, Christina M.; Himmel, Michael E.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA.
[Beckham, Gregg T.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
[Schnorr, Kirk] Novozymes AS, DK-2880 Bagsvaerd, Denmark.
RP Beckham, GT (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
EM gregg.beckham@nrel.gov; Simon.Cragg@port.ac.uk; neil.bruce@york.ac.uk;
simon.mcqueenmason@york.ac.uk
RI Cragg, Simon/C-8463-2011; Payne, Christina/C-7338-2011;
OI Cragg, Simon/0000-0003-1082-7653; Payne, Christina/0000-0001-5264-0964;
McGeehan, John/0000-0002-6750-1462
FU Biotechnology and Biological Sciences Research Council (BBSRC)
[BB/G016178/1]; BBSRC-US Partnering Award [BB/H531543/1]; US Department
of Energy's BioEnergy Technologies Office; National Institute for
Computational Sciences Kraken cluster under the National Science
Foundation XSEDE [MCB090159]; Department of Energy, Energy Efficiency
and Renewable Energy [DE-AC36-08GO28308]
FX We thank the staff at the Diamond Light Source for their assistance, Jo
Diamond for SEM work, Clare Steele-King for critical reading of the
manuscript, and Jerry Stahlberg and Mats Sandgren for helpful
discussions. This work was funded by Biotechnology and Biological
Sciences Research Council (BBSRC) Grant BB/G016178/1. Visits between the
research teams were supported by BBSRC-US Partnering Award BB/H531543/1.
G. T. B., M. E. H., and C. M. P. acknowledge the US Department of
Energy's BioEnergy Technologies Office for funding. Computer time for
this research was provided by the National Institute for Computational
Sciences Kraken cluster under the National Science Foundation XSEDE
Grant MCB090159 and by the National Renewable Energy Laboratory
Computational Sciences Center supported by the Department of Energy,
Energy Efficiency and Renewable Energy under Contract DE-AC36-08GO28308.
NR 63
TC 29
Z9 31
U1 10
U2 79
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 18
PY 2013
VL 110
IS 25
BP 10189
EP 10194
DI 10.1073/pnas.1301502110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 179DU
UT WOS:000321500200043
PM 23733951
ER
PT J
AU Tinnacher, RM
Nico, PS
Davis, JA
Honeyman, BD
AF Tinnacher, Ruth M.
Nico, Peter S.
Davis, James A.
Honeyman, Bruce D.
TI Effects of Fulvic Acid on Uranium(VI) Sorption Kinetics
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID NATURAL ORGANIC-MATTER; HUMIC-ACID; METAL-IONS; COLUMN EXPERIMENTS;
WATER INTERFACE; QUARTZ SAND; COMPLEXATION; ADSORPTION; SUBSTANCES;
MIGRATION
AB This study focuses on the effects of fulvic acid (FA) on uranium(VI) sorption kinetics to a silica sand. Using a tritium-labeled FA in batch experiments made it possible to investigate sorption rates over a wide range of environmentally relevant FA concentrations (0.37-23 mg L-1 TOC). Equilibrium speciation calculations were coupled with an evaluation of U(VI) and FA sorption rates based on characteristic times. This allowed us to suggest plausible sorption mechanisms as a function of solution conditions (e.g., pH, U(VI)/FA/surface site ratios). Our results indicate that U(VI) sorption onto silica sand can be either slower or faster in the presence of FA compared to a ligand-free system. This suggests a shift in the underlying mechanisms of FA effects on U(VI) sorption, from competitive sorption to influences of U(VI)-FA complexes, in the same system. Changes in metal sorption rates depend on the relative concentrations of metals, organic ligands, and mineral surface sites. Hence, these results elucidate the sometimes conflicting information in the literature about the influence of organic matter on metal sorption rates. Furthermore, they provide guidance for the selection of appropriate sorption equilibration times for experiments that are designed to determine metal distribution coefficients (K-d values) under equilibrium conditions.
C1 [Tinnacher, Ruth M.; Honeyman, Bruce D.] Colorado Sch Mines, Dept Civil & Environm Engn, Golden, CO 80401 USA.
[Tinnacher, Ruth M.; Nico, Peter S.; Davis, James A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Tinnacher, RM (reprint author), Colorado Sch Mines, Dept Civil & Environm Engn, Golden, CO 80401 USA.
EM RMTinnacher@lbl.gov
RI Nico, Peter/F-6997-2010; Tinnacher, Ruth/I-4845-2015; Davis,
James/G-2788-2015
OI Nico, Peter/0000-0002-4180-9397;
FU National Science Foundation; Austrian Academy of Sciences; U.S. DOE
NABIR Program; U.S. DOE Subsurface Biogeochemical Research program's
Sustainable Systems Science Focus Area at Lawrence Berkeley National
Laboratory [DE-AC02-05CH11231]
FX We thank Manfred Geier for help with kinetic modeling, Emily Lesher for
facilitating QEMSCAN/EDX surface analysis, and LLNL for providing
Mathematica 7.0. Funding provided by the National Science Foundation,
the Austrian Academy of Sciences, the U.S. DOE NABIR Program, and in
part by the U.S. DOE Subsurface Biogeochemical Research program's
Sustainable Systems Science Focus Area at Lawrence Berkeley National
Laboratory (Contract No. DE-AC02-05CH11231).
NR 56
TC 9
Z9 9
U1 2
U2 99
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JUN 18
PY 2013
VL 47
IS 12
BP 6214
EP 6222
DI 10.1021/es304677c
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 169AJ
UT WOS:000320749000019
PM 23550952
ER
PT J
AU Mohr, C
Lopez-Hilfiker, FD
Zotter, P
Prevot, ASH
Xu, L
Ng, NL
Herndon, SC
Williams, LR
Franklin, JP
Zahniser, MS
Worsnop, DR
Knighton, WB
Aiken, AC
Gorkowski, KJ
Dubey, MK
Allan, JD
Thornton, JA
AF Mohr, Claudia
Lopez-Hilfiker, Felipe D.
Zotter, Peter
Prevot, Andre S. H.
Xu, Lu
Ng, Nga L.
Herndon, Scott C.
Williams, Leah R.
Franklin, Jonathan P.
Zahniser, Mark S.
Worsnop, Douglas R.
Knighton, W. Berk
Aiken, Allison C.
Gorkowski, Kyle J.
Dubey, Manvendra K.
Allan, James D.
Thornton, Joel A.
TI Contribution of Nitrated Phenols to Wood Burning Brown Carbon Light
Absorption in Detling, United Kingdom during Winter Time
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID POSITIVE MATRIX FACTORIZATION; IONIZATION MASS-SPECTROMETRY; PARTICULATE
MATTER; ORGANIC AEROSOLS; BLACK CARBON; MEXICO-CITY; ATMOSPHERIC
CHEMISTRY; COMBUSTION; AIR; PARTICLES
AB We show for she first time quantitative online measurements of five nitrated phenol (NP) compounds in ambient air (nitrophenol C6H5NO3, methylnitrophenol C7H7NO3, nitrocatechol C6H5NO4, methylnitrocatechol C7H7NO4, and dinitrophenol C6H4N2O5) measured with a micro-orifice volatilization impactor (MOVI) high-resolution chemical ionization mass spectrometer in Detling, United Kingdom during January-February, 2012. NPs absorb radiation in the near-ultraviolet (UV) range of the electromagnetic spectrum and thus are potential components of poorly characterized light-absorbing organic matter ("brown carbon") which can affect the climate and air quality. Total NP concentrations varied between less than 1 and 98 ng m(-3), with a mean value of 20 ng m(-3). We conclude that NPs measured in Detling have a significant contribution from biomass burning with an estimated emission factor of 0.2 ng (ppb CO)(-1). Particle light absorption measurements by a seven-wavelength aethalometer in the near-UV (370 nm) and literature values of molecular absorption cross sections are used to estimate the contribution of NP to wood burning brown carbon UV light absorption. We show that these five NPs are potentially important contributors to absorption at 370 nm measured by an aethalometer and account for 4 +/- 2% of UV light absorption by brown carbon. They can thus affect atmospheric radiative transfer and photochemistry and with that climate and air quality.
C1 [Mohr, Claudia; Lopez-Hilfiker, Felipe D.; Thornton, Joel A.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
[Zotter, Peter; Prevot, Andre S. H.] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland.
[Xu, Lu; Ng, Nga L.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Herndon, Scott C.; Williams, Leah R.; Franklin, Jonathan P.; Zahniser, Mark S.; Worsnop, Douglas R.] Aerodyne Res Inc, Billerica, MA 01821 USA.
[Worsnop, Douglas R.] Univ Helsinki, Dept Phys, Helsinki 00014, Finland.
[Knighton, W. Berk] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA.
[Aiken, Allison C.; Gorkowski, Kyle J.; Dubey, Manvendra K.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Gorkowski, Kyle J.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Allan, James D.] Univ Manchester, Natl Ctr Atmospher Sci, Manchester M13 9PL, Lancs, England.
[Allan, James D.] Univ Manchester, Sch Earth Atmopspher & Environm Sci, Manchester M13 9PL, Lancs, England.
RP Thornton, JA (reprint author), Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
EM thornton@atmos.uw.edu
RI Dubey, Manvendra/E-3949-2010; Mohr, Claudia/D-9857-2011; Allan,
James/B-1160-2010; Prevot, Andre/C-6677-2008; Worsnop,
Douglas/D-2817-2009; Aiken, Allison/B-9659-2009; Thornton,
Joel/C-1142-2009
OI Dubey, Manvendra/0000-0002-3492-790X; Mohr, Claudia/0000-0002-3291-9295;
Allan, James/0000-0001-6492-4876; Prevot, Andre/0000-0002-9243-8194;
Worsnop, Douglas/0000-0002-8928-8017; Aiken,
Allison/0000-0001-5749-7626; Thornton, Joel/0000-0002-5098-4867
FU DOE-ASR GVAX grant [DE-SC0006036]; NERC Clean Air For London (CLEARFLO)
project [NE/H00324X/1]; National Centre for Atmospheric Science (NCAS)
FX This work was supported by DOE-ASR GVAX grant DE-SC0006036, the NERC
Clean Air For London (CLEARFLO) project [grant ref: NE/H00324X/1], and
the National Centre for Atmospheric Science (NCAS). We thank David Green
(King's College London), Carl Percival (University of Manchester),
Christine Braban (Centre for Ecology and Hydrology), and the staff at
the Kent Showground for their support during the campaign.
NR 61
TC 50
Z9 51
U1 7
U2 108
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
EI 1520-5851
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JUN 18
PY 2013
VL 47
IS 12
BP 6316
EP 6324
DI 10.1021/es400683v
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 169AJ
UT WOS:000320749000031
PM 23710733
ER
PT J
AU Watson, DB
Wu, WM
Mehlhorn, T
Tang, GP
Earles, J
Lowe, K
Gihring, TM
Zhang, GX
Phillips, J
Boyanov, MI
Spalding, BP
Schadt, C
Kemner, KM
Criddle, CS
Jardine, PM
Brooks, SC
AF Watson, David B.
Wu, Wei-Min
Mehlhorn, Tonia
Tang, Guoping
Earles, Jennifer
Lowe, Kenneth
Gihring, Thomas M.
Zhang, Gengxin
Phillips, Jana
Boyanov, Maxim I.
Spalding, Brian P.
Schadt, Christopher
Kemner, Kenneth M.
Criddle, Craig S.
Jardine, Philip M.
Brooks, Scott C.
TI In Situ Bioremediation of Uranium with Emulsified Vegetable Oil as the
Electron Donor
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID HIGHLY CONTAMINATED AQUIFER; MICROBIAL COMMUNITIES; SUBMICROMOLAR
LEVELS; U(VI) BIOREDUCTION; DISSOLVED-OXYGEN; EDIBLE OIL; NITRATE;
REDUCTION; SEDIMENTS; GROUNDWATER
AB A field test with a one-time emulsified vegetable oil (EVO) injection was conducted to assess the capacity of EVO to sustain uranium bioreduction in a high-permeability gravel layer with groundwater concentrations of (mM) U, 0.0055; Ca, 2.98; NO3-, 0.11; HCO3-, 5.07; and SO42-, 1.23. Comparison of bromide and EVO migration and distribution indicated that a majority of the injected EVO was retained in the subsurface from the injection wells to 50 m downgradient. Nitrate, uranium, and sulfate were sequentially removed from the groundwater within 1-2 weeks, accompanied by an increase in acetate, Mn, Fe, and methane concentrations. Due to the slow release and degradation of EVO with time, reducing conditions were sustained for approximately one year, and daily U discharge to a creek, located approximately 50 m from the injection wells, decreased by 80% within 100 days. Total U discharge was reduced by 50% over the one-year period. Reduction of U(VI) to U(IV) was confirmed by synchrotron analysis of recovered aquifer solids. Oxidants (e.g., dissolved oxygen, nitrate) flowing in from upgradient appeared to reoxidize and remobilize uranium after the EVO was exhausted as evidenced by a transient increase of U concentration above ambient values. Occasional (e.g., annual) EVO injection into a permeable Ca and bicarbonate-containing aquifer can sustain uranium bioreduction/immobilization and decrease U migration/discharge.
C1 [Watson, David B.; Mehlhorn, Tonia; Tang, Guoping; Earles, Jennifer; Lowe, Kenneth; Gihring, Thomas M.; Zhang, Gengxin; Phillips, Jana; Spalding, Brian P.; Schadt, Christopher; Brooks, Scott C.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Wu, Wei-Min; Criddle, Craig S.] Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA.
[Wu, Wei-Min] Stanford Univ, Ctr Sustainable Dev & Global Competitiveness, Stanford, CA 94305 USA.
[Boyanov, Maxim I.; Kemner, Kenneth M.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Jardine, Philip M.] Univ Tennessee, Dept Biosyst Engn & Soil Sci, Knoxville, TN 37996 USA.
RP Watson, DB (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM watsondb@ornl.gov; wei-min.wu@stanford.edu
RI Tang, Guoping/A-5141-2010; Brooks, Scott/B-9439-2012; Watson,
David/C-3256-2016; Phillips, Jana/G-4755-2016; Schadt,
Christopher/B-7143-2008
OI Tang, Guoping/0000-0003-1090-3564; Brooks, Scott/0000-0002-8437-9788;
Watson, David/0000-0002-4972-4136; Phillips, Jana/0000-0001-9319-2336;
Schadt, Christopher/0000-0001-8759-2448
FU U.S. DOE, Office of Science, Office of Biological and Environmental
Research (BER), Subsurface Biogeochemical Research Program; U.S. DOE
[DE-AC05-18 00OR22725]; ANL Scientific Focus Area project; SBR Program
of the Office of BER, U.S. DOE [DE-AC05-76RLO, DE-AC02-06CH11357];
DOE-SC Office of Basic Energy Sciences [DE-AC02-06CH11357]; DOE;
MRCAT/EnviroCAT
FX We thank Ms. Xiangping Yin for analytical and laboratory assistance and
Dr. Fang Zhang for data analysis. This research was funded by the U.S.
DOE, Office of Science, Office of Biological and Environmental Research
(BER), Subsurface Biogeochemical Research Program. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC, for the U.S. DOE under
contract DE-AC05-18 00OR22725. Argonne National Laboratory (ANL)
contributions were supported in part by the ANL Scientific Focus Area
project, which is part of the SBR Program of the Office of BER, U.S. DOE
under contracts DE-AC05-76RLO and DE-AC02-06CH11357, respectively. Use
of the Advanced Photon Source (APS) was supported by the DOE-SC Office
of Basic Energy Sciences, under contract DE-AC02-06CH11357.
MRCAT/EnviroCAT operations are supported by DOE and the MRCAT/EnviroCAT
member institutions.
NR 45
TC 14
Z9 15
U1 8
U2 61
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JUN 18
PY 2013
VL 47
IS 12
BP 6440
EP 6448
DI 10.1021/es3033555
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 169AJ
UT WOS:000320749000046
PM 23697787
ER
PT J
AU Yelton, AP
Williams, KH
Fournelle, J
Wrighton, KC
Handley, KM
Banfield, JF
AF Yelton, Alexis P.
Williams, Kenneth H.
Fournelle, John
Wrighton, Kelly C.
Handley, Kim M.
Banfield, Jillian F.
TI Vanadate and Acetate Biostimulation of Contaminated Sediments Decreases
Diversity, Selects for Specific Taxa, and Decreases Aqueous V5+
Concentration
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID DISSIMILATORY METAL REDUCTION; BACTERIAL COMMUNITY STRUCTURE; IN-SITU
BIOSTIMULATION; SP-NOV.; MICROBIAL COMMUNITY; OXIDATIVE STRESS; URANIUM
BIOREMEDIATION; SHEWANELLA-ONEIDENSIS; ENTEROBACTER-CLOACAE; ANAEROBIC
BACTERIUM
AB Vanadium is a commercially important metal that is released into the environment by fossil fuel combustion and mining. Despite its prevalence as a contaminant, the potential for vanadium bioremediation has not been widely studied. Injection of acetate (as a carbon source) directly into an aquifer to biostimulate contaminated sediments in Colorado, United States, resulted in prolonged removal of aqueous vanadium for a period of at least two years. To further investigate this process, we simultaneously added acetate and vanadate (V5+) to columns that were packed with aquifer sediment and inserted into groundwater wells installed on the Colorado River floodplain, This allowed evaluation of the microbial response to amendments in columns that received an influx of natural groundwater. Our results demonstrate the removal of up to 99% of the added V5+(aq) and suggest microbial mediation. Most probable number measurements demonstrate up to a 50-fold increase in numbers of V5+-reducing cells in vanadium-amended columns compared to controls. 16S rRNA gene sequencing indicates decreased diversity and selection for specific taxa in columns that received vanadate compared to those that did not. Overall, our results demonstrate that acetate amendment can be an effective strategy for V removal, and that V bioremediation may be a viable technology.
C1 [Yelton, Alexis P.; Banfield, Jillian F.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Williams, Kenneth H.; Banfield, Jillian F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Fournelle, John] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA.
[Wrighton, Kelly C.; Handley, Kim M.; Banfield, Jillian F.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Banfield, JF (reprint author), Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
EM jbanfield@berkeley.edu
RI Yelton, Alexis/I-7064-2013; Williams, Kenneth/O-5181-2014;
OI Yelton, Alexis/0000-0002-5069-371X; Williams,
Kenneth/0000-0002-3568-1155; Handley, Kim/0000-0003-0531-3009
FU Environmental and Remediation Sciences Program, Office of Science,
Biological and Environmental Research, US Department of Energy; U.S. DOE
[DE-AC02-05CH11231]; NSF
FX Funding was provided by Environmental and Remediation Sciences Program,
Office of Science, Biological and Environmental Research, US Department
of Energy. The Rifle, Colorado, IFRC Project is managed by Lawrence
Berkeley National Laboratory for the U.S. DOE (contract no.
DE-AC02-05CH11231). APY acknowledges NSF Graduate Research Fellowship
Program support, and would like to thank Chris Miller for support with
the EMIRGE algorithm.
NR 89
TC 16
Z9 16
U1 6
U2 64
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
EI 1520-5851
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JUN 18
PY 2013
VL 47
IS 12
BP 6500
EP 6509
DI 10.1021/es4006674
PG 10
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 169AJ
UT WOS:000320749000054
PM 23713472
ER
PT J
AU Liu, SY
Kleber, M
Takahashi, LK
Nico, P
Keiluweit, M
Ahmed, M
AF Liu, Suet Yi
Kleber, Markus
Takahashi, Lynelle K.
Nico, Peter
Keiluweit, Marco
Ahmed, Musahid
TI Synchrotron-Based Mass Spectrometry to Investigate the Molecular
Properties of Mineral-Organic Associations
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID VACUUM-ULTRAVIOLET PHOTOIONIZATION; ANALYTICAL PYROLYSIS;
VUV-PHOTOIONIZATION; GAS CHROMATOGRAPHY; FOREST SOIL; IRON-OXIDE;
MATTER; SURFACES; IONIZATION; DESORPTION
AB Soil organic matter (SOM) is important because its decay drives life processes in the biosphere. Analysis of organic compounds in geological systems is difficult because of their intimate association with mineral surfaces. To date there is no procedure capable of quantitatively separating organic from mineral phases without creating artifacts or mass loss. Therefore, analytical techniques that can (a) generate information about both organic and mineral phases simultaneously and (b) allow the examination of predetermined high-interest regions of the sample as opposed to conventional bulk analytical techniques are valuable. Laser desorption synchrotron postionization (synchrotron-LDPI) mass spectrometry is introduced as a novel analytical tool to characterize the molecular properties of organic compounds in mineral organic samples from terrestrial systems, and it is demonstrated that, when combined with secondary ion mass spectrometry (SIMS), it can provide complementary information on mineral composition. Mass spectrometry along a decomposition gradient in density fractions verifies the consistency of our results with bulk analytical techniques. We further demonstrate that, by changing laser and photoionization energies, variations in molecular stability of organic compounds associated with mineral surfaces can be determined. The combination of synchrotron-LDPI and SIMS shows that the energetic conditions involved in desorption and ionization of organic matter may be a greater, determinant of mass spectral signatures than the inherent molecular structure of the organic compounds investigated. The latter has implications for molecular models of natural organic matter that are based on mass spectrometric information.
C1 [Liu, Suet Yi; Takahashi, Lynelle K.; Ahmed, Musahid] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Kleber, Markus; Keiluweit, Marco] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA.
[Nico, Peter] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Keiluweit, Marco] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA USA.
RP Ahmed, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.
EM mahmed@lbl.gov
RI Ahmed, Musahid/A-8733-2009; Nico, Peter/F-6997-2010
OI Nico, Peter/0000-0002-4180-9397
FU Office of Science, Office of Basic Energy Sciences; Division of Chemical
Sciences, Geosciences, and Biosciences of the U.S. Department of Energy
at LBNL [DE-AC02-05CH11231]
FX This work is supported by the Director, Office of Science, Office of
Basic Energy Sciences, and by the Division of Chemical Sciences,
Geosciences, and Biosciences of the U.S. Department of Energy at LBNL
under contract no. DE-AC02-05CH11231. The authors gratefully acknowledge
P. Sollins and K. Lajtha for providing the density fractionated samples.
NR 38
TC 7
Z9 7
U1 7
U2 52
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
J9 ANAL CHEM
JI Anal. Chem.
PD JUN 18
PY 2013
VL 85
IS 12
BP 6100
EP 6106
DI 10.1021/ac400976z
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 169AL
UT WOS:000320749200068
PM 23675904
ER
PT J
AU Weiner, SC
Fassbender, LL
Blake, C
Aceves, SM
Somerday, BP
Ruiz, A
AF Weiner, S. C.
Fassbender, L. L.
Blake, C.
Aceves, S. M.
Somerday, B. P.
Ruiz, A.
TI Web-based resources enhance hydrogen safety knowledge
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Hydrogen safety; Incidents; Best practices; Safety training; Codes and
standards
AB The U.S. Department of Energy's Fuel Cell Technologies Program addresses key technical challenges and institutional barriers facing the development and deployment of hydrogen and fuel cell technologies with the goal of decreasing dependence on oil, reducing carbon emissions and enabling reliable power generation. The Safety, Codes & Standards program area seeks to develop and implement the practices and procedures that will ensure safety in the operation, handling and use of hydrogen and hydrogen systems for all projects and utilize these practices and lessons learned to promote the safe use of hydrogen. Enabling the development of codes and standards for the safe use of hydrogen in energy applications and facilitating the development and harmonization of international codes and standards are integral to this work. Web-based resources play a key role in reaching, educating and informing stakeholders whose contributions will help enable the deployment of new hydrogen and fuel cell technologies. This paper surveys eight web-based tools, each targeted to a specific stakeholder audience, that are integral resources for information on hydrogen-related safety, codes and standards work in the Fuel Cell Technologies Program. . Hydrogen Incident Reporting and Lessons Learned (http://h2incidents.org) . Hydrogen Safety Best Practices (http://h2bestpractices.org) . Hydrogen Safety Bibliographic Database (http://www.hydrogen.energy.gov/biblio_database.html) . Introduction to Hydrogen Safety for First Responders (http://www.hydrogen.energy.gov/firstresponders.html) . Introduction to Hydrogen for Code Officials (http://www.hydrogen.energy.gov/training/code_official_training/) Permitting Hydrogen Facilities (http://www.hydrogen.energy.gov/permitting/) . Safety Training for Researchers (http://www.h2labsafety.org/) . Technical Reference for Hydrogen Compatibility of Materials (http://www.sandia.gov/matIsTechRef/) The development and use of each safety knowledge tool is described. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Weiner, S. C.] Pacific NW Natl Lab, Washington, DC 20024 USA.
[Fassbender, L. L.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Blake, C.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Aceves, S. M.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Somerday, B. P.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Ruiz, A.] US DOE, Washington, DC 20585 USA.
RP Weiner, SC (reprint author), Pacific NW Natl Lab, 901 D St SW,Suite 900, Washington, DC 20024 USA.
EM sc.weiner@pnnl.gov
NR 13
TC 1
Z9 1
U1 1
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD JUN 18
PY 2013
VL 38
IS 18
BP 7583
EP 7593
DI 10.1016/j.ijhydene.2012.07.028
PG 11
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 174ON
UT WOS:000321165400046
ER
PT J
AU Hu, JC
Clark, KW
Hayakawa, R
Li, AP
Wakayama, Y
AF Hu, Jianchen
Clark, Kendal W.
Hayakawa, Ryoma
Li, An-Ping
Wakayama, Yutaka
TI Enhanced Electrical Conductivity in Poly(3-hexylthiophene)/Fluorinated
Tetracyanoquinodimethane Nanowires Grown with a Porous Alumina Template
SO LANGMUIR
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; CONJUGATED POLYMERS; CHARGE-TRANSPORT;
MOBILITY; NANOSTRUCTURES; PERFORMANCE; ELECTRONICS; ALIGNMENT; NANOTUBE
AB We report on improved electrical conductivity in poly(3-hexylthiophene) (P3HT)/2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) composite nanowires grown using an anodized aluminum oxide (AAO) template. The electrical conductivity of individual nanowire measured by four-probe scanning tunneling microscopy shows that F4-TCNQ molecules are effectively doped into P3HT by capillary force. The resistivity is tuned in the 0.1-10 Omega cm range by changing the F4-TCNQ concentration from 10 to 0.1 wt % and is 2-4 orders of magnitude smaller than that of the corresponding P3HT/F4-TNCQ thin film composites. The AAO template-assisted synthesis approach thus appears to be effective for high chemical doping and for improving the electrical conductivity of the molecular wires.
C1 [Hu, Jianchen; Hayakawa, Ryoma; Wakayama, Yutaka] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan.
[Hu, Jianchen; Wakayama, Yutaka] Kyushu Univ, Fac Engn, Dept Chem & Biochem, Tsukuba, Ibaraki 3050044, Japan.
[Clark, Kendal W.; Li, An-Ping] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Wakayama, Y (reprint author), Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.
EM wakayama.yutaka@nims.go.jp
RI Li, An-Ping/B-3191-2012
OI Li, An-Ping/0000-0003-4400-7493
FU World Premier International Research Center Initiative (WPI), MEXT,
Japan; Oak Ridge National Laboratory by the Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy;
ORNL/UTK Joint Institute for Advanced Materials
FX This work was supported by the World Premier International Research
Center Initiative (WPI), MEXT, Japan. The four-probe STM research was
conducted at the Center for Nanophase Materials Sciences, which is
sponsored at Oak Ridge National Laboratory by the Scientific User
Facilities Division, Office of Basic Energy Sciences, U.S. Department of
Energy. A.-P.L. acknowledges support from the ORNL/UTK Joint Institute
for Advanced Materials.
NR 39
TC 12
Z9 12
U1 2
U2 57
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD JUN 18
PY 2013
VL 29
IS 24
BP 7266
EP 7270
DI 10.1021/la304499k
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 169AB
UT WOS:000320748200013
PM 23298158
ER
PT J
AU Kim, DH
Vitol, EA
Liu, J
Balasubramanian, S
Gosztola, DJ
Cohen, EE
Novosad, V
Rozhkova, EA
AF Kim, Dong-Hyun
Vitol, Elina A.
Liu, Jing
Balasubramanian, Shankar
Gosztola, David J.
Cohen, Ezra E.
Novosad, Valentyn
Rozhkova, Elena A.
TI Stimuli-Responsive Magnetic Nanomicelles as Multifunctional Heat and
Cargo Delivery Vehicles
SO LANGMUIR
LA English
DT Article
ID CRITICAL SOLUTION TEMPERATURE; IRON-OXIDE NANOPARTICLES; DRUG-DELIVERY;
SUPERPARAMAGNETIC NANOPARTICLES; SQUAMOUS CARCINOMA; CANCER; PH;
POLYMERS; SURFACE; MRI
AB Hybrid nanoarchitectures are among the most promising nanotechnology-enabled materials for biomedical applications. Interfacing of nanoparticles with active materials gives rise to the structures with unique multiple functionality. Superparamagnetic iron oxide nanoparticles particles SPION are widely employed in the biology and in developing of advanced medical technologies. Polymeric micelles offer the advantage of multifunctional carriers which can serve as delivery vehicles carrying nanoparticles, hydrophobic chemotherapeutics and other functional materials and molecules. Stimuli-responsive polymers are especially attractive since their properties can be modulated in a controlled manner. Here we report on multifunctional thermo-responsive poly(N-isopropylacrylamide-co-acrylamide)-block-poly(-caprolactone) random block copolymer micelles as magnetic hyperthermia-mediated payload release and imaging agents. The combination of copolymers, nanoparticles and doxorubicin drug was tailored the way that the loaded micelles were cable to respond to magnetic heating at physiologically-relevant temperatures. A surface functionalization of the micelles with the integrin beta 4 antibody and consequent interfacing of the resulting nanobio hybrid with squamous head and neck carcinoma cells which is known to specifically over-express the A9 antigen resulted in concentration of the micelles on the surface of cells. No inherent cytotoxicity was detected for the magnetic micelles without external stimuli application. Furthermore, SPION-loaded micelles demonstrate significant MRI contrast enhancement abilities.
C1 [Kim, Dong-Hyun; Vitol, Elina A.; Novosad, Valentyn] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Vitol, Elina A.; Balasubramanian, Shankar; Gosztola, David J.; Rozhkova, Elena A.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Liu, Jing; Cohen, Ezra E.] Univ Chicago, Dept Med, Chicago, IL 60637 USA.
RP Novosad, V (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM novosad@anl.gov; rozhkova@anl.gov
RI Balasubramanian, Shankar Ganesh/B-1048-2009; Novosad,
Valentyn/C-2018-2014; Gosztola, David/D-9320-2011; Novosad, V
/J-4843-2015;
OI Balasubramanian, Shankar Ganesh/0000-0002-6149-6471; Gosztola,
David/0000-0003-2674-1379; Kim, Dong-Hyun/0000-0001-6815-3319
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; Argonne, a U.S. Department of Energy
Office of Science laboratory [DE-AC02-06CH11357]
FX Use of the Center for Nanoscale Materials was supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under contract no. DE-AC02-06CH11357.; The submitted
manuscript has been created by UChicago Argonne, LLC, Operator of
Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of
Energy Office of Science laboratory, is operated under contract no.
DE-AC02-06CH11357. The U.S. Government retains for itself and others
acting on its behalf a paid-up nonexclusive, irrevocable worldwide
license of said article to reproduce, prepare derivative works,
distribute copies to the public, and perform publicly and display
publicly, by or on behalf of the Government.
NR 43
TC 35
Z9 37
U1 4
U2 130
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD JUN 18
PY 2013
VL 29
IS 24
BP 7425
EP 7432
DI 10.1021/la3044158
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 169AB
UT WOS:000320748200032
PM 23351096
ER
PT J
AU Armstrong, CL
Marquardt, D
Dies, H
Kucerka, N
Yamani, Z
Harroun, TA
Katsaras, J
Shi, AC
Rheinstadter, MC
AF Armstrong, Clare L.
Marquardt, Drew
Dies, Hannah
Kucerka, Norbert
Yamani, Zahra
Harroun, Thad A.
Katsaras, John
Shi, An-Chang
Rheinstaedter, Maikel C.
TI The Observation of Highly Ordered Domains in Membranes with Cholesterol
SO PLOS ONE
LA English
DT Article
ID PROTEIN-PROTEIN INTERACTIONS; PHASE DPPC BILAYERS; X-RAY-SCATTERING;
LIPID-BILAYERS; MOLECULAR SIMULATION; COLLECTIVE DYNAMICS; MAXIMUM
SOLUBILITY; MODEL MEMBRANES; CELL BIOLOGY; RAFTS
AB Rafts, or functional domains, are transient nano- or mesoscopic structures in the exoplasmic leaflet of the plasma membrane, and are thought to be essential for many cellular processes. Using neutron diffraction and computer modelling, we present evidence for the existence of highly ordered lipid domains in the cholesterol-rich (32.5 mol%) liquid-ordered (l(o)) phase of dipalmitoylphosphatidylcholine membranes. The liquid ordered phase in one-component lipid membranes has previously been thought to be a homogeneous phase. The presence of highly ordered lipid domains embedded in a disordered lipid matrix implies non-uniform distribution of cholesterol between the two phases. The experimental results are in excellent agreement with recent computer simulations of DPPC/cholesterol complexes [Meinhardt, Vink and Schmid (2013). Proc Natl Acad Sci USA 110(12): 4476-4481], which reported the existence of nanometer size l(o) domains in a liquid disordered lipid environment.
C1 [Armstrong, Clare L.; Dies, Hannah; Shi, An-Chang; Rheinstaedter, Maikel C.] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
[Marquardt, Drew; Harroun, Thad A.] Brock Univ, Dept Phys, St Catharines, ON L2S 3A1, Canada.
[Marquardt, Drew; Kucerka, Norbert; Yamani, Zahra; Katsaras, John; Rheinstaedter, Maikel C.] Natl Res Council Canada, Canadian Neutron Beam Ctr, Chalk River, ON, Canada.
[Katsaras, John] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN USA.
[Katsaras, John] Oak Ridge Natl Lab, Joint Inst Neutron Sci, Oak Ridge, TN USA.
RP Armstrong, CL (reprint author), McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
EM armstc5@mcmaster.ca; rheinstadter@mcmaster.ca
RI yamani, zahra/B-7892-2012; Shi, An-Chang/A-2910-2008;
OI Katsaras, John/0000-0002-8937-4177; Harroun, Thad/0000-0001-9816-2590;
Marquardt, Drew/0000-0001-6848-2497
FU Natural Sciences and Engineering Research Council of Canada; National
Research Council; Canada Foundation for Innovation; Ontario Ministry of
Economic Development and Innovation; Oak Ridge National Laboratory's
Laboratory Directed Research and Development program; Early Researcher
Award from the Province of Ontario
FX This research was funded by the Natural Sciences and Engineering
Research Council of Canada, the National Research Council, the Canada
Foundation for Innovation, and the Ontario Ministry of Economic
Development and Innovation. JK is partially supported by Oak Ridge
National Laboratory's Laboratory Directed Research and Development
program. MCR is the recipient of an Early Researcher Award from the
Province of Ontario. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 79
TC 37
Z9 37
U1 5
U2 63
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 18
PY 2013
VL 8
IS 6
AR e66162
DI 10.1371/journal.pone.0066162
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 166SA
UT WOS:000320576400060
PM 23823623
ER
PT J
AU Dumas, RK
Iacocca, E
Bonetti, S
Sani, SR
Mohseni, SM
Eklund, A
Persson, J
Heinonen, O
Akerman, J
AF Dumas, Randy K.
Iacocca, E.
Bonetti, S.
Sani, S. R.
Mohseni, S. M.
Eklund, A.
Persson, J.
Heinonen, O.
Akerman, Johan
TI Spin-Wave-Mode Coexistence on the Nanoscale: A Consequence of the
Oersted-Field-Induced Asymmetric Energy Landscape
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NANO-OSCILLATORS; TRANSFER TORQUE; EXCITATION
AB It has been argued that if multiple spin wave modes are competing for the same centrally located energy source, as in a nanocontact spin torque oscillator, that only one mode should survive in the steady state. Here, the experimental conditions necessary for mode coexistence are explored. Mode coexistence is facilitated by the local field asymmetries induced by the spatially inhomogeneous Oersted field, which leads to a physical separation of the modes, and is further promoted by spin wave localization at reduced applied field angles. Finally, both simulation and experiment reveal a low frequency signal consistent with the intermodulation of two coexistent modes.
C1 [Dumas, Randy K.; Iacocca, E.; Akerman, Johan] Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden.
[Bonetti, S.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Sani, S. R.; Mohseni, S. M.; Eklund, A.; Akerman, Johan] Royal Inst Technol KTH, Sch ICT, S-16440 Kista, Sweden.
[Sani, S. R.; Mohseni, S. M.; Persson, J.; Akerman, Johan] NanOsc AB, S-16440 Kista, Sweden.
[Heinonen, O.] Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA.
[Heinonen, O.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
RP Dumas, RK (reprint author), Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden.
EM randydumas@gmail.com
RI Dumas, Randy/E-3077-2010; Akerman, Johan/B-5726-2008; Bonetti,
Stefano/A-9737-2009; Eklund, Anders/L-5152-2016;
OI Dumas, Randy/0000-0001-5505-2172; Akerman, Johan/0000-0002-3513-6608;
Bonetti, Stefano/0000-0001-9352-2411; Eklund,
Anders/0000-0003-1271-1814; Heinonen, Olle/0000-0002-3618-6092; Iacocca,
Ezio/0000-0002-8870-5106
FU Swedish Research Council; Swedish Foundation for Strategic Research
(SSF); Knut and Alice Wallenberg Foundation; Argonne National Laboratory
[DE-AC02-06CH11357]; UChicago Argonne, LLC.
FX Support from The Swedish Research Council (VR), The Swedish Foundation
for Strategic Research (SSF), and the Knut and Alice Wallenberg
Foundation is gratefully acknowledged. Argonne National Laboratory is a
US DOE Science Laboratory operated under Contract No. DE-AC02-06CH11357
by UChicago Argonne, LLC. R. K. D. and E. I. contributed equally to this
work.
NR 32
TC 43
Z9 43
U1 3
U2 33
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 18
PY 2013
VL 110
IS 25
AR 257202
DI 10.1103/PhysRevLett.110.257202
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 167QD
UT WOS:000320645800019
PM 23829755
ER
PT J
AU Lu, XY
Gretarsson, H
Zhang, R
Liu, XR
Luo, HQ
Tian, W
Laver, M
Yamani, Z
Kim, YJ
Nevidomskyy, AH
Si, QM
Dai, PC
AF Lu, Xingye
Gretarsson, H.
Zhang, Rui
Liu, Xuerong
Luo, Huiqian
Tian, Wei
Laver, Mark
Yamani, Z.
Kim, Young-June
Nevidomskyy, A. H.
Si, Qimiao
Dai, Pengcheng
TI Avoided Quantum Criticality and Magnetoelastic Coupling in BaFe2-xNixAs2
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB We study the structural and magnetic orders in electron-doped BaFe2-xNixAs2 by high-resolution synchrotron x-ray and neutron scatterings. Upon Ni doping x, the nearly simultaneous tetragonal-to-orthorhombic structural (T-s) and antiferromagnetic (T-N) phase transitions in BaFe2As2 are gradually suppressed and separated, resulting in T-s > T-N with increasing x, as was previously observed. However, the temperature separation between T-s and T-N decreases with increasing x for x >= 0.065, tending toward a quantum bicritical point near optimal superconductivity at x approximate to 0.1. The zero-temperature transition is preempted by the formation of a secondary incommensurate magnetic phase in the region 0: 088 less than or similar to x less than or similar to 0.104, resulting in a finite value of T-N approximate to T-c + 10 K above the superconducting dome around x approximate to 0.1. Our results imply an avoided quantum critical point, which is expected to strongly influence the properties of both the normal and superconducting states.
C1 [Lu, Xingye; Zhang, Rui; Liu, Xuerong; Luo, Huiqian; Dai, Pengcheng] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
[Lu, Xingye; Dai, Pengcheng] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Gretarsson, H.; Kim, Young-June] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Liu, Xuerong] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Tian, Wei] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA.
[Laver, Mark] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland.
[Laver, Mark] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark.
[Yamani, Z.] CNR, Canadian Neutron Beam Ctr, Chalk River, ON K0J 1P0, Canada.
[Nevidomskyy, A. H.; Si, Qimiao] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
RP Lu, XY (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
EM pdai@utk.edu
RI Dai, Pengcheng /C-9171-2012; yamani, zahra/B-7892-2012; Kim, Young-June
/G-7196-2011; Tian, Wei/C-8604-2013;
OI Dai, Pengcheng /0000-0002-6088-3170; Kim, Young-June
/0000-0002-1172-8895; Tian, Wei/0000-0001-7735-3187; Nevidomskyy,
Andriy/0000-0002-8684-7979
FU MOST [2012CB821400, 2011CBA00110]; NSFC [11004233]; Robert A. Welch
Foundation [C-1411, C-1818]; NSERC; CFI; U.S. DOE, BES
[DE-AC02-98CH10886]; Scientific User Facilities Division; BES; U.S. DOE;
[U.S. NSF-DMR-1063866]; [U.S. NSF-DMR-1006985]
FX The work at IOP, CAS, is supported by MOST (973 Projects No.
2012CB821400 and No. 2011CBA00110) and NSFC (No. 11004233). The work at
UTK is supported by the U.S. NSF-DMR-1063866. The work at Rice
University is supported by the U.S. NSF-DMR-1006985 and the Robert A.
Welch Foundation Grants No. C-1411 and No C-1818. Research at the
University of Toronto was supported by the NSERC and CFI. Use of the
NSLS was supported by the U. S. DOE, BES, under Contract No.
DE-AC02-98CH10886. The work at the HFIR, ORNL, was sponsored by the
Scientific User Facilities Division, BES, U.S. DOE.
NR 31
TC 33
Z9 33
U1 0
U2 37
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 18
PY 2013
VL 110
IS 25
AR 257001
DI 10.1103/PhysRevLett.110.257001
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 167QD
UT WOS:000320645800018
PM 23829752
ER
PT J
AU Beard, MC
Luther, JM
Semonin, OE
Nozik, AJ
AF Beard, Matthew C.
Luther, Joseph M.
Semonin, Octavi E.
Nozik, Arthur J.
TI Third Generation Photovoltaics based on Multiple Exciton Generation in
Quantum Confined Semiconductors
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID DOT SOLAR-CELLS; CARRIER MULTIPLICATION YIELDS; DETAILED BALANCE LIMIT;
PBSE NANOCRYSTAL FILMS; MULTIEXCITON GENERATION; SILICON NANOCRYSTALS;
IMPACT IONIZATION; EFFICIENCY; SOLIDS; CONVERSION
AB Improving the primary photoconversion process in a photovoltaic cell by utilizing the excess energy that is otherwise lost as heat can lead to an increase in the overall power conversion efficiency (PCE). Semiconductor nanocrystals (NCs) with at least one dimension small enough to produce quantum confinement effects provide new ways of controlling energy flow not achievable in thin film or bulk semiconductors. Researchers have developed various strategies to incorporate these novel structures into suitable solar conversion systems. Some of these methods could increase the PCE past the Shockley - Queisser (SO) limit of similar to 33%, making them viable "third generation photovoltaic' (TGPV) cell architectures. Surpassing the SQ limit for single junction solar cells presents both a scientific and a technological challenge, and the use of semiconductor NCs to enhance the primary photoconversion process offers a promising potential solution.
The NCs are synthesized via solution phase chemical reactions producing stable colloidal solutions, where the reaction conditions can be modified to produce a variety of shapes, compositions, and structures. The confinement of the semiconductor NC in one dimension produces quantum films, wells, or discs. Two-dimensional confinement leads to quantum wires or rods (QRs), and quantum dots (QDs) are three-dimensionally confined NCs. The process of multiple exciton generation (MEG) converts a high-energy photon into multiple electron hole pairs. Although many studies have demonstrated that MEG is enhanced in QDs compared with bulk semiconductors, these studies have either used ultrafast spectroscopy to measure the photon-to-exciton quantum yields (QYs) or theoretical calculations. Implementing MEG in a working solar cell has been an ongoing challenge.
In this Account, we discuss the status of MEG research and strategies towards implementing MEG in working solar cells. Recently we showed an external quantum efficiency for photocurrent of greater than 100% (reaching 114%) at similar to 4E(g) in a PbSe QD solar cell. The internal quantum efficiency reached 130%. These results compare favorably with ultrafast transient spectroscopic measurements. Thus, we have shown that one of the tenets of the SQ limit, that photons only produce one electron - hole pair at the electrodes of a solar cell, can be overcome. Further challenges include increasing the MEG efficiency and improving the QD device structure and operation.
C1 [Beard, Matthew C.; Luther, Joseph M.; Semonin, Octavi E.; Nozik, Arthur J.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Semonin, Octavi E.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Nozik, Arthur J.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
RP Beard, MC (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
RI Beard, MATTHEW/E-4270-2015; Nozik, Arthur/A-1481-2012; Nozik,
Arthur/P-2641-2016;
OI Beard, MATTHEW/0000-0002-2711-1355; Semonin, Octavi
Escala/0000-0002-4262-6955
FU Division of Chemical Sciences, Geosciences, and Biosciences in the
Office of Basic Energy of the Department of Energy; Center for Advanced
Solar Photophysics, an Energy Frontier Research Center; U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences; DOE
[DE-AC36-086038308]
FX We gratefully acknowledge useful discussion with Aaron Midgett, Matt
Law, Jianbo Gao, and Barbara Hughes. We also acknowledge helpful
discussions and interactions with Alexander Efros and Victor Klimov. Our
work on the photophysics and chemistry of isolated QDs is supported by
the Solar Photochemistry program within the Division of Chemical
Sciences, Geosciences, and Biosciences in the Office of Basic Energy of
the Department of Energy. Incorporating the QDs into working solar cells
and studying how the QDs couple to one another to form QD layers is
supported by the Center for Advanced Solar Photophysics, an Energy
Frontier Research Center funded by the U.S. Department of Energy, Office
of Science, Office of Basic Energy Sciences. DOE funding was provided to
NREL through Contract DE-AC36-086038308.
NR 73
TC 100
Z9 102
U1 14
U2 288
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1252
EP 1260
DI 10.1021/ar3001958
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700003
PM 23113604
ER
PT J
AU Padilha, LA
Stewart, JT
Sandberg, RL
Bae, WK
Koh, WK
Pietryga, JM
Klimov, VI
AF Padilha, Lazaro A.
Stewart, John T.
Sandberg, Richard L.
Bae, Wan Ki
Koh, Weon-Kyu
Pietryga, Jeffrey M.
Klimov, Victor I.
TI Carrier Multiplication in Semiconductor Nanocrystals: Influence of Size,
Shape, and Composition
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID MULTIPLE EXCITON GENERATION; PBSE QUANTUM DOTS; SOLAR-CELLS; AUGER
RECOMBINATION; EFFICIENCY; ELECTRON; RELAXATION; DEPENDENCE; NANORODS;
STATES
AB During carrier multiplication (CM), also known as multiexciton generation (MEG), absorption of a single photon produces multiple electron-hole pairs, or excitons. This process can appreciably increase the efficency of photoconversion, which is especially beneficial in photocatalysis and photovoltaics.
This Account reviews recent progress in understanding the CM process in semiconductor nanocrystals (NCs), motivated by the challenge researchers face to quickly identify candidate nanomaterials with enhanced CM. We present a possible solution to this problem by showing that, using measured biexciton Auger lifetimes and intraband relaxation rates as surrogates for, respectively, CM time constants and non-CM energy-loss rates, we can predict relative changes in CM yields as a function of composition. Indeed, by studying PbS, PbSe, and PbTe NCs of a variety of sties we determine that the significant difference in CM yields for these compounds comes from the dissimilarities in their non-CM relaxation channels, i.e., the processes that compete with CM. This finding is likely general, as previous observations of a material-independent, "universal" volume-scaling of Auger lifetimes suggest that the timescale of the CM process itself is only weakly affected by NC composition.
We further explore the role of nanostructure shape in the CM process. We observe that a moderate elongation (aspect ratio of 6-7) of PbSe NCs can cause up to an approximately two-fold increase in the multiexciton yield compared to spherical nanoparticles. The increased Auger lifetimes and improved charge transport properties generally assodated with elongated nanostructures suggest that lead chalcogenide nanorods are a promising system for testing CM concepts in practical photovoltaics.
Historically, experimental considerations have been an important factor influencing CM studies. To this end, we discuss the role of NC photocharging in CM measurements. Photodiarging can distort multiexciton dynamics, leading to erroneous estimations of the CM yield. Here, we show that in addition to distorting time-resolved CM signals, photocharging also creates spectral signatures that mimic CM. This re-emphasizes the importance of a careful analysis of the potential effect of charged species in both optical and photocurrent-based measurements of this process.
C1 [Padilha, Lazaro A.; Stewart, John T.; Sandberg, Richard L.; Bae, Wan Ki; Koh, Weon-Kyu; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Ctr Adv Solar Photophys, Los Alamos, NM 87545 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Ctr Adv Solar Photophys, POB 1663, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
RI Koh, Weon-kyu/G-8623-2013; Padilha, Lazaro/G-1523-2013;
OI Sandberg, Richard/0000-0001-9719-8188; Koh,
Weon-kyu/0000-0002-6913-4184; Klimov, Victor/0000-0003-1158-3179
FU Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center; Office of Basic Energy Sciences, Office of Science,
U.S. Department of Energy
FX This work was supported by the Center for Advanced Solar Photophysics
(CASP), an Energy Frontier Research Center funded by the Office of Basic
Energy Sciences, Office of Science, U.S. Department of Energy.
NR 44
TC 75
Z9 75
U1 13
U2 234
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1261
EP 1269
DI 10.1021/ar300228x
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700004
PM 23530867
ER
PT J
AU Johnson, JC
Nozik, AJ
Michl, J
AF Johnson, Justin C.
Nozik, Arthur J.
Michl, Josef
TI The Role of Chromophore Coupling in Singlet Fission
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID EXCITON FISSION; ENERGY TRANSFER; SOLAR-CELLS;
1,3-DIPHENYLISOBENZOFURAN; GENERATION; PHOTOPHYSICS; PENTACENE;
ELECTRON; YIELD; FILM
AB Certain organic materials can generate more than one electron-hole pair per absorbed photon, a property that could revolutionize the prospects for solar energy. This process, called singlet fission, is one possible "exciton multiplication" scheme that could be useful in a variety of photovoltaic device designs from dye-sensitized solar cells to solar cell bilayers to bulk heterojunctions. For such applications to be possible, however, singlet fission must occur with near perfect efficiency in compounds that also have other requisite properties such as strong visible light absorption and photostability. Many recent investigations of singlet fission have focused on crystalline polyacenes, which have been known for some time to undergo singlet fission. While these materials have promise, limitations in stability, cost, and performance may hinder practical application of polyacene solar cells, while their complex photophysics may limit our fundamental understanding of singlet fission in crystalline polyacenes.
In this Account, we describe rationally designed singlet fission chromophores whose excited state dynamics should be fairly simple and whose coupling can be well controlled through the formation of covalent dimers, aggregates, or polycrystalline films. In principle, investigations of these chromophores should provide the dearest connection to theoretical concepts explaining how an excited state evolves from a singlet (Si) into two triplets (IT). Realizing the promise of efficient singlet fission rests with two tasks: (i) producing an ideal molecular energy level structure and (ii) inducing the correct type and strength of chromophore coupling. In this Account, we offer theoretical guidance for achieving 0) and consider more extensively recent results aimed at (ii).
For (i), theoretical guidance suggests that, in addition to alternant hydrocarbons like tetracene and pentacene, biradicals (i.e., molecules with two independent radical centers) may also be used as the basis for designing chromophores with low-lying triplet states such that the energy relationship 2E(T-1) <= E(S-1) is satisfied. Although molecules that do not fulfill this condition can also exhibit singlet fission from a higher lying or vibrationally excited singlet state, fast relaxation processes will likely reduce the singlet fission yield and complicate determination of the singlet fission mechanism.
For (ii), once an appropriate chromophore has been chosen, the task of coupling two or more of them together must be done carefully. We discuss three pathways by which a dimer could undergo singlet fission: (1) A direct route in which slipped cofacial stacking is favorable under certain conditions. Cofacial stacking is common in molecular crystals, and it is likely not a coincidence that recent reports of efficient singlet fission involve slipped-stacked molecules in polycrystalline thin films. (2) A mediated route in which SI interacts with (TT) through a virtual radical cation/anion state, which may be important in some situations. (3) A two-step route (i.e., through a real charge transfer intermediate) which others have suggested theoretically. We present data on 1,3-diphenylisobenzofuran (DPIBF) dimers that are consistent with this pathway.
Finally, we review potential solar photoconversion efficiency gains utilizing singlet fission in several contexts.
C1 [Johnson, Justin C.; Nozik, Arthur J.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Nozik, Arthur J.; Michl, Josef] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Michl, Josef] Acad Sci Czech Republic, Inst Organ Chem & Biochem, CR-16610 Prague, Czech Republic.
RP Johnson, JC (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA.
RI Michl, Josef/G-9376-2014; Nozik, Arthur/A-1481-2012; Nozik,
Arthur/P-2641-2016
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Chemical Sciences, Biosciences, and Geosciences; [DE-AC36-08GO28308];
[DOE DE-SC0007004]
FX This work has been supported by the U.S. Department of Energy, Office of
Basic Energy Sciences, Division of Chemical Sciences, Biosciences, and
Geosciences. A.J.N and J.C.J acknowledge Contract No. DE-AC36-08GO28308
with NREL, and J.M. acknowledges Award Number DOE DE-SC0007004.
NR 38
TC 79
Z9 80
U1 13
U2 233
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
EI 1520-4898
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1290
EP 1299
DI 10.1021/ar300193r
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700007
PM 23301661
ER
PT J
AU Chan, WL
Berkelbach, TC
Provorse, MR
Monahan, NR
Tritsch, JR
Hybertsen, MS
Reichman, DR
Gao, JL
Zhu, XY
AF Chan, Wai-Lun
Berkelbach, Timothy C.
Provorse, Makenzie R.
Monahan, Nicholas R.
Tritsch, John R.
Hybertsen, Mark S.
Reichman, David R.
Gao, Jiali
Zhu, X-Y
TI The Quantum Coherent Mechanism for Singlet Fission: Experiment and
Theory
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID CRYSTALLINE TETRACENE; TRIPLET EXCITONS; MUTUAL ANNIHILATION;
ANTHRACENE-CRYSTALS; MAGNETIC FIELD; FLUORESCENCE; PENTACENE;
SPECTROSCOPY; GENERATION; DYNAMICS
AB The absorption of one photon by a semiconductor material usually creates one electron hole pair. However, this general rule breaks down in a few organic semiconductors, such as pentacene and tetracene, where one photon absorption may result in two electron hole pairs. This process, where a singlet exciton transforms to two triplet excitons, can have quantum yields as high as 200%. Singlet fission may be useful to solar cell technologies to increase the power conversion efficiency beyond the so-called Shockley-Queisser limit. Through time-resolved two-photon photo-emission (TR-2PPE) spectroscopy in crystalline pentacene and tetracene, our lab has recently provided the first spectroscopic signatures in singlet fission of a critical intermediate known as the multiexciton state (also called a correlated triplet pair). More importantly, we found that population of the multiexciton state rises at the same time as the singlet state on the ultrafast time scale upon photoexcitation. This observation does not fit with the traditional view of singlet fission involving the incoherent conversion of a singlet to a triplet pair. However, it provides an experimental foundation for a quantum coherent mechanism in which the electronic coupling creates a quantum superposition of the singlet and the multiexciton state immediately after optical excitation.
In this Account, we review key experimental findings from TR-2PPE experiments and present a theoretical analysis of the quantum coherent mechanism based on electronic structural and density matrix calculations for crystalline tetracene lattices. Using multistate density functional theory, we find that the direct electronic coupling between singlet and multiexciton states is too weak to explain the experimental observation. Instead, indirect coupling via charge transfer intermediate states is two orders of magnitude stronger, and dominates the dynamics for ultrafast multiexciton formation. Density matrix calculation for the crystalline tetracene lattice satisfactorily accounts for the experimental observations. It also reveals the critical roles of the charge transfer states and the high dephasing rates in ensuring the ultrafast formation of multiexciton states. In addition, we address the origins of microscopic relaxation and dephasing rates, and adopt these rates in a quantum master equation description. We show the need to take the theoretical effort one step further in the near future by combining high-level electronic structure calculations with accurate quantum relaxation dynamics for large systems.
C1 [Chan, Wai-Lun] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA.
[Berkelbach, Timothy C.; Monahan, Nicholas R.; Reichman, David R.; Zhu, X-Y] Columbia Univ, Dept Chem, New York, NY 10027 USA.
[Provorse, Makenzie R.; Gao, Jiali] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA.
[Tritsch, John R.] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA.
[Hybertsen, Mark S.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Reichman, DR (reprint author), Columbia Univ, Dept Chem, New York, NY 10027 USA.
EM drr2103@columbia.edu; gao@jialigao.org; xyzhu@columbia.edu
RI Chan, Wai-Lun/A-7833-2008; Monahan, Nicholas/G-4946-2013;
OI Chan, Wai-Lun/0000-0001-8697-9894; Monahan,
Nicholas/0000-0002-8562-5127; Hybertsen, Mark S/0000-0003-3596-9754;
Provorse, Makenzie/0000-0003-4034-0248
FU National Science Foundation [DMR-0946346, 1207254, CHE09-57162]; program
"Center for Re-Defining Photovoltaic Efficiency Through Molecule Scale
Control", an Energy Frontier Research Center; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-SC0001085];
Brookhaven National Laboratory [DE-AC02-98CH10886]; DOE Office of
Science Graduate Fellowship [DE-AC05-06OR23100]
FX The experimental work in section 2 was supported by the National Science
Foundation, Grants DMR-0946346 and 1207254 (to X.-Y.Z.). The theoretical
work in section 3 was supported by the National Science Foundation,
Grant CHE09-57162 (to J.G.) and that in section 4 was supported as part
of the program "Center for Re-Defining Photovoltaic Efficiency Through
Molecule Scale Control", an Energy Frontier Research Center funded by
the U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences under Award Number DE-SC0001085 (to D.R.R. and X-Y.Z), and work
at Brookhaven National Laboratory was done under Contract Number
DE-AC02-98CH10886 (to M.S.H.). T.C.B. was supported by the DOE Office of
Science Graduate Fellowship, administered by ORISE-ORAU under Contract
Number DE-AC05-06OR23100.
NR 38
TC 91
Z9 91
U1 20
U2 229
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1321
EP 1329
DI 10.1021/ar300286s
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700010
PM 23581494
ER
PT J
AU Zimmerman, PM
Musgrave, CB
Head-Gordon, M
AF Zimmerman, Paul M.
Musgrave, Charles B.
Head-Gordon, Martin
TI A Correlated Electron View of Singlet Fission
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID EXCITON FISSION; TETRACENE CRYSTALS; MAGNETIC-FIELD; PENTACENE;
FLUORESCENCE; DYNAMICS; TRANSITIONS; GENERATION; STATES
AB Singlet fission occurs when a single exciton splits into multiple electron-hole pairs, and could dramatically increase the efficiency of organic solar cells by converting high energy photons into multiple charge carriers. Scientists might exploit singlet fission to its full potential by first understanding the underlying mechanism of this quantum mechanical process. The pursuit of this fundamental mechanism has recently benefited from the development and application of new correlated wave function methods. These-methods called restricted active space spin flip-can capture the most important electron interactions in molecular materials, such as acene crystals, at low computational cost It is unrealistic to use previous wave function methods due to the excessive computational cost involved in simulating realistic molecular structures at a meaningful level of electron correlation.
In this Account, we describe how we use these techniques to compute single exciton and multiple exciton excited states in tetracene and pentacene crystals in order to understand how a single exciton generated from photon absorption undergoes fission to generate two triplets. Our studies indicate that an adiabatic charge transfer intermediate is unlikely to contribute significantly to the fission process because it lies too high in energy. Instead, we propose a new mechanism that involves the direct coupling of an optically allowed single exciton to an optically dark multiexciton. This coupling is facilitated by intermolecular motion of two acene monomers that drives nonadiabatic population transfer between the two states. This transfer occurs in the limit of near degeneracies between adiabatic states where the Born-Oppenheimer approximation of fixed nuclei is no longer valid. Existing theories for singlet fission have not considered this type of coupling between states and, therefore, cannot describe this mechanism.
The direct mechanism through intermolecular motion describes many experimentally observed characteristics of these materials, such as the ultrafast time scale of photobleaching and triplet generation during singlet fission in pentacene. We believe this newly discovered mechanism provides fundamental insight to guide the creation of new solar materials that exhibit high efficiencies through multiple charge generation.
C1 [Zimmerman, Paul M.] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA.
[Musgrave, Charles B.] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA.
[Head-Gordon, Martin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Head-Gordon, Martin] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Zimmerman, PM (reprint author), Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA.
EM paulzim@umich.edu
NR 37
TC 62
Z9 62
U1 14
U2 154
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD JUN 18
PY 2013
VL 46
IS 6
BP 1339
EP 1347
DI 10.1021/ar3001734
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169AG
UT WOS:000320748700012
PM 23427823
ER
PT J
AU Zhao, Z
Ding, X
Lookman, T
Sun, J
Salje, EKH
AF Zhao, Z.
Ding, X.
Lookman, T.
Sun, J.
Salje, E. K. H.
TI Mechanical Loss in Multiferroic Materials at High Frequencies: Friction
and the Evolution of Ferroelastic Microstructures
SO ADVANCED MATERIALS
LA English
DT Article
DE dynamical energy dissipation; mechanical spectroscopy; needle domains
and kinks; intrinsic pinning and depinning
ID SHAPE-MEMORY ALLOYS; DOMAIN BOUNDARIES; HYDROGEN
AB Energy absorption in multiferroic materials stems typically from strain relaxation which can be strong even when no extrinsic defects exist in the material. Computer simulations of a simple two-dimensional model on a generic, proper ferroelastic material identify the dissipative mechanisms associated with the dynamical motion as: a) advance and retraction of needle-shaped twin domains and, b) movement of kinks inside twin boundaries. Both movements involve friction losses.
C1 [Zhao, Z.; Ding, X.; Sun, J.; Salje, E. K. H.] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
[Salje, E. K. H.] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England.
[Ding, X.; Lookman, T.; Salje, E. K. H.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Ding, X.; Lookman, T.; Salje, E. K. H.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RP Ding, X (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
EM dingxd@mail.xjtu.edu.cn; ekhard@esc.cam.ac.uk
RI Ding, Xiangdong/K-4971-2013; Salje, Ekhard/M-2931-2013
OI Ding, Xiangdong/0000-0002-1220-3097; Salje, Ekhard/0000-0002-8781-6154
FU NSFC [51171140, 51231008]; 973 Program of China [2010CB631003,
2012CB619402]; 111 project [B06025]; Leverhulme fund [RG66640]; EPSRC
[EP/K009702/1]
FX We appreciate the support of NSFC (51171140, 51231008), the 973 Program
of China (2010CB631003, 2012CB619402) and 111 project (B06025). EKHS is
grateful for support by the Leverhulme fund (RG66640) and EPSRC
(EP/K009702/1).
NR 33
TC 13
Z9 13
U1 3
U2 78
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD JUN 18
PY 2013
VL 25
IS 23
BP 3244
EP 3248
DI 10.1002/adma.201300655
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 162OR
UT WOS:000320275200014
PM 23649792
ER
PT J
AU Huang, XR
Peng, RW
Honnicke, MG
Gog, T
AF Huang, Xian-Rong
Peng, Ru-Wen
Hoennicke, Marcelo G.
Gog, Thomas
TI Fourier coupled-wave diffraction theory of periodic structures and
crystals
SO PHYSICAL REVIEW A
LA English
DT Article
ID X-RAY-DIFFRACTION; PLANAR-GRATING DIFFRACTION; SURFACE-RELIEF GRATINGS;
MODAL METHOD; FORMULATION; IMPLEMENTATION; POLARIZATION; RESOLUTION;
ALGORITHM
AB The dynamical theory of x-ray diffraction and the coupled-wave theory for modeling diffraction of light from periodic structures are two equivalent theories but with incompatibilities, as they were developed independently along two parallel directions in history. Here we reformulate the two theories into a universal Fourier coupled-wave diffraction theory (FCWDT), in which the fundamental coupled-wave equations for almost all practical diffraction geometry can always be written as a straightforward eigenvalue equation that is easily solvable by standard mathematical procedures. Since it removes most of the approximations and complexities in the two conventional theories, the FCWDT is almost rigorous yet simple and, in principle, can be used to compute scattering of electromagnetic waves from any kinds of periodic (nonmagnetic) structures, including x-ray diffraction from crystals and soft x-ray and light diffraction from periodic multilayers, gratings, and photonic crystals.
C1 [Huang, Xian-Rong; Gog, Thomas] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Peng, Ru-Wen] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.
[Peng, Ru-Wen] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
[Hoennicke, Marcelo G.] Univ Fed Integraco Latino Amer, BR-85867970 Foz Do Iguacu, PR, Brazil.
RP Huang, XR (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
EM xiahuang@aps.anl.gov; rwpeng@nju.edu.cn
RI Honnicke, Marcelo/I-8624-2012
FU US Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC-02-06CH11357]; Ministry of Science and Technology of
China [2012CB921502, 2010CB630705]; NSFC [11034005, 61077023, 11021403];
Ministry of Education of China [20100091110029]; CNPq/PQ [305034/2010-3]
FX This work was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC-02-06CH11357. R.W.P. was supported by the Ministry of Science and
Technology of China (Grants No. 2012CB921502 and No. 2010CB630705), by
the NSFC (Grants No. 11034005, No. 61077023, and No. 11021403), and
partly by the Ministry of Education of China (Grant No. 20100091110029).
M.G.H. thanks CNPq/PQ (Grant No. 305034/2010-3) for financial support.
NR 26
TC 2
Z9 2
U1 3
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 18
PY 2013
VL 87
IS 6
AR 063828
DI 10.1103/PhysRevA.87.063828
PG 9
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 167CF
UT WOS:000320607300004
ER
PT J
AU James, AJA
Konik, RM
AF James, Andrew J. A.
Konik, Robert M.
TI Understanding the entanglement entropy and spectra of 2D quantum systems
through arrays of coupled 1D chains
SO PHYSICAL REVIEW B
LA English
DT Article
ID DENSITY-MATRIX RENORMALIZATION; FIELD
AB We describe an algorithm for studying the entanglement entropy and spectrum of two-dimensional (2D) systems, as a coupled array of N one-dimensional chains in their continuum limit. Using the algorithm to study the quantum Ising model in 2D (both in its disordered phase and near criticality), we confirm the existence of an area law for the entanglement entropy and show that near criticality there is an additive piece scaling as c(eff) log(N)/6 with c(eff) approximate to 1. Studying the entanglement spectrum, we show that entanglement gap scaling can be used to detect the critical point of the 2D model. When short-range (area law) entanglement dominates we find (numerically and perturbatively) that this spectrum reflects the energy spectrum of a single quantum Ising chain.
C1 [James, Andrew J. A.; Konik, Robert M.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP James, AJA (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RI Konik, Robert/L-8076-2016;
OI Konik, Robert/0000-0003-1209-6890; James, Andrew/0000-0001-8454-6219;
James, Andrew/0000-0003-3069-4579
FU US Department of Energy [DE-AC02-98CH10886]
FX This research was supported by the US Department of Energy
(DE-AC02-98CH10886). We are grateful to P. Calabrese, F. Essler, J.-M.
Stephan, and P. Fendley for helpful discussion and for the hospitality
of the Galileo Galilei Institute at which part of this work was
completed.
NR 49
TC 14
Z9 14
U1 3
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 18
PY 2013
VL 87
IS 24
AR 241103
DI 10.1103/PhysRevB.87.241103
PG 5
WC Physics, Condensed Matter
SC Physics
GA 167DC
UT WOS:000320609800001
ER
PT J
AU Jeffries, JR
Soderlind, P
Cynn, H
Landa, A
Evans, WJ
Weir, ST
Vohra, YK
Lander, GH
AF Jeffries, J. R.
Soederlind, P.
Cynn, H.
Landa, A.
Evans, W. J.
Weir, S. T.
Vohra, Y. K.
Lander, G. H.
TI Magnetism and structural distortions in uranium sulfide under pressure
SO PHYSICAL REVIEW B
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; X-RAY; MONOCHALCOGENIDES US;
TRANSPORT-PROPERTIES; CIRCULAR-DICHROISM; ACTINIDE COMPOUNDS; DELTA-PU;
UTE; DIFFRACTION; EXCITATION
AB Uranium sulfide belongs to a class of uranium monochalcogenides that crystallize in the rocksalt structure and exhibit ferromagnetism at low temperature. The magnetism is believed to play a role in the low-temperature rhombohedral distortion, possibly due to its large magnetic anisotropy. We have performed electrical and structural characterization along with density-functional theory calculations as functions of pressure to help understand the interplay between structure and magnetism in US. Theoretical calculations suggest that ferromagnetic order is responsible for the small distortion at ambient pressure and low temperature. Under pressure, the Curie temperature is reduced monotonically until it discontinuously disappears near a pressure-induced deformation of the crystal structure. This high-pressure distortion is identical to the one correlated with the onset of magnetic order, but with a larger change in the cell angle. Calculations imply a reduction in the electronic band energy as the driving force for the pressure-induced structure, but the loss of magnetic order associated with this distortion remains a mystery. The high-pressure electronic phase diagram may shed light on the magnetostructural free energy landscape of US.
C1 [Jeffries, J. R.; Soederlind, P.; Cynn, H.; Landa, A.; Evans, W. J.; Weir, S. T.] Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Livermore, CA 94550 USA.
[Vohra, Y. K.] Univ Alabama Birmingham, Dept Phys, Birmingham, AL 35924 USA.
[Lander, G. H.] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany.
RP Jeffries, JR (reprint author), Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Livermore, CA 94550 USA.
FU Science Campaign and LDRD at Lawrence Livermore National Laboratory
[11-LW-003]; US Department of Energy, National Nuclear Security
Administration [DE-AC52-07NA27344]; DOE-NNSA [DE-NA0001974]; DOE-BES
[DE-FG02-99ER45775, DE-AC02-06CH11357]; NSF
FX We greatly appreciate fruitful conversations with K. T. Moore. We
graciously thank Ken Visbeck for assistance with DAC preparation and
Curtis Kenney-Benson for assistance with acquiring cryogenic data at the
Advanced Photon Source. This work was supported by the Science Campaign
and LDRD (Tracking Code 11-LW-003) at Lawrence Livermore National
Laboratory. Lawrence Livermore National Laboratory is operated by
Lawrence Livermore National Security, LLC, for the US Department of
Energy, National Nuclear Security Administration, under Contract No.
DE-AC52-07NA27344. Portions of this work were performed at HPCAT (Sector
16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT
operations are supported by DOE-NNSA under Award No. DE-NA0001974 and
DOE-BES under Award No. DE-FG02-99ER45775, with partial instrumentation
funding by NSF. APS is supported by DOE-BES, under Contract No.
DE-AC02-06CH11357.
NR 62
TC 6
Z9 6
U1 1
U2 33
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 18
PY 2013
VL 87
IS 21
AR 214104
DI 10.1103/PhysRevB.87.214104
PG 11
WC Physics, Condensed Matter
SC Physics
GA 167CK
UT WOS:000320607900001
ER
PT J
AU Lin, SZ
Koshelev, AE
AF Lin, Shi-Zeng
Koshelev, Alexei E.
TI Linewidth of the electromagnetic radiation from Josephson junctions near
cavity resonances
SO PHYSICAL REVIEW B
LA English
DT Article
ID COLLECTIVE MODE; SUPERCONDUCTORS; EMISSION; ARRAYS
AB The powerful terahertz emission from intrinsic Josephson junctions in high-T-c cuprate superconductors has been detected recently. The synchronization of different junctions is enhanced by excitation of the geometrical cavity resonance. A key characteristic of the radiation is its linewidth. In this work, we study the intrinsic linewidth of the radiation near the internal cavity resonance. Surprisingly, this problem was never considered before, neither for a single Josephson junction nor for a stack of the intrinsic Josephson junctions realized in cuprate superconductors. The linewidth appears due to the slow phase diffusion, which is determined by the dissipation and amplitude of the noise. We found that both these parameters are resonantly enhanced when the cavity mode is excited but enhancement of the dissipation dominates leading to the net suppression of diffusion and dramatic narrowing of the linewidth. The line shape changes from Lorentzian to Gaussian when either the Josephson frequency is shifted away from the resonance or the temperature is increased.
C1 [Lin, Shi-Zeng] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Koshelev, Alexei E.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Lin, SZ (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM szl@lanl.gov; koshelev@anl.gov
RI Lin, Shi-Zeng/B-2906-2008; Koshelev, Alexei/K-3971-2013
OI Lin, Shi-Zeng/0000-0002-4368-5244; Koshelev, Alexei/0000-0002-1167-5906
FU Office of Naval Research via the Applied Electrodynamics collaboration;
UChicago Argonne, LLC; US DOE laboratory [DE-AC02-06CH11357];
Institutional Computing Program in LANL
FX The authors thanks H. B. Wang, T. M. Benseman, U. Welp, and L. N.
Bulaevskii for helpful discussions. S.Z.L. gratefully acknowledges
funding support from the Office of Naval Research via the Applied
Electrodynamics collaboration. A.E.K. is supported by UChicago Argonne,
LLC, operator of Argonne National Laboratory, a US DOE laboratory,
operated under Contract No. DE-AC02-06CH11357. Computer resources for
numerical calculations were supported by the Institutional Computing
Program in LANL.
NR 36
TC 7
Z9 7
U1 0
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 18
PY 2013
VL 87
IS 21
AR 214511
DI 10.1103/PhysRevB.87.214511
PG 5
WC Physics, Condensed Matter
SC Physics
GA 167CK
UT WOS:000320607900002
ER
PT J
AU Rebola, A
Fong, DD
Eastman, JA
Ogut, S
Zapol, P
AF Rebola, Alejandro
Fong, Dillon D.
Eastman, Jeffrey A.
Oeguet, Serdar
Zapol, Peter
TI First-principles study of compensation mechanisms in negatively charged
LaGaO3/MgAl2O4 interfaces
SO PHYSICAL REVIEW B
LA English
DT Article
ID COLOSSAL IONIC-CONDUCTIVITY; OXIDE FUEL-CELLS; DOPED LAGAO3;
HETEROSTRUCTURES; SPINEL; FILMS; (LA,SR)COO3/(LA,SR)(2)COO4;
ENHANCEMENT; TEMPERATURE; TRANSPORT
AB Thin film oxide heterostructures with a bound charge at the interface require electrical compensation, which can involve redistribution of mobile charge carriers. We explore a model LaGaO3(001)//MgAl2O4(001) heterostructure with nominally negatively charged interfaces using first-principles methods and a Poisson-Boltzmann equation. We find that charge compensation by oxygen vacancies with quadratically decaying concentration away from the interface is more favorable than electronic redistribution. These vacancies have a potential to enhance ionic conductivity along the interfaces.
C1 [Rebola, Alejandro; Oeguet, Serdar] Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
[Rebola, Alejandro; Fong, Dillon D.; Eastman, Jeffrey A.; Zapol, Peter] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Rebola, A (reprint author), Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
EM zapol@anl.gov
RI Ogut, Serdar/B-1749-2012; Zapol, Peter/G-1810-2012
OI Zapol, Peter/0000-0003-0570-9169
FU US Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; Office of Science of the US Department of
Energy
FX This work was supported by the US Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357. We acknowledge computational support from the Argonne
National Laboratory Computing Resource Center, Center for Nanoscale
Materials, and the National Energy Research Scientific Computing Center,
which is supported by the Office of Science of the US Department of
Energy.
NR 38
TC 6
Z9 6
U1 1
U2 35
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 18
PY 2013
VL 87
IS 24
AR 245117
DI 10.1103/PhysRevB.87.245117
PG 10
WC Physics, Condensed Matter
SC Physics
GA 167DC
UT WOS:000320609800004
ER
PT J
AU Arsenijevic, S
Hodovanets, H
Gaal, R
Forro, L
Bud'ko, SL
Canfield, PC
AF Arsenijevic, S.
Hodovanets, H.
Gaal, R.
Forro, L.
Bud'ko, S. L.
Canfield, P. C.
TI Signatures of quantum criticality in the thermopower of
Ba(Fe1-xCox)(2)As-2
SO PHYSICAL REVIEW B
LA English
DT Article
ID IRON ARSENIDE SUPERCONDUCTOR; FERMI-LIQUID BEHAVIOR; CUPRATE
SUPERCONDUCTORS; CRITICAL-POINT; RESISTIVITY; TEMPERATURE; SURFACE;
BAFE2(AS1-XPX)(2); INSTABILITY; TRANSITION
AB We demonstrate that the thermopower (S) can be used to probe the spin fluctuations (SFs) in proximity to the quantum critical point (QCP) in Fe-based superconductors. The sensitivity of S to the entropy of charge carriers allows us to observe an increase of S/T in Ba(Fe1-x Co-x)(2)As-2 close to the spin-density-wave (SDW) QCP. This behavior is due to the coupling of low-energy conduction electrons to two-dimensional SFs, similar to heavy-fermion systems. The low-temperature enhancement of S/T in the Co substitution range 0.02 < x < 0.1 is bordered by two Lifshitz transitions, and it corresponds to the superconducting region, where a similarity between the electron and nonreconstructed hole pockets exists. The maximal S/T is observed in proximity to the commensurate-to-incommensurate SDW transition, for critical x(c) approximate to 0.05, close to the highest superconducting T-c. This analysis indicates that low-T thermopower is influenced by critical spin fluctuations which are important for the superconducting mechanism.
C1 [Arsenijevic, S.; Gaal, R.; Forro, L.] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland.
[Arsenijevic, S.] LNCMI CNRS, Lab Natl Champs Magnet Intenses, F-38042 Grenoble, France.
[Hodovanets, H.; Bud'ko, S. L.; Canfield, P. C.] US DOE, Ames Lab, Ames, IA 50011 USA.
[Hodovanets, H.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Arsenijevic, S (reprint author), Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland.
RI Canfield, Paul/H-2698-2014
FU Swiss NSF; MaNEP NCCR; US Department of Energy, Office of Basic Energy
Science, Division of Materials Sciences and Engineering; US Department
of Energy by Iowa State University [DE-AC02-07CH11358]
FX We thank M. Sigrist, A. Janossy, H. Ronnow, I. Eremin, K. Behnia, and T.
Iye for useful discussions. Work performed at EPFL was supported by the
Swiss NSF and by the MaNEP NCCR. Part of this work was performed at the
Ames Laboratory and supported by the US Department of Energy, Office of
Basic Energy Science, Division of Materials Sciences and Engineering.
Ames Laboratory is operated for the US Department of Energy by Iowa
State University under Contract No. DE-AC02-07CH11358.
NR 77
TC 11
Z9 11
U1 3
U2 45
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 18
PY 2013
VL 87
IS 22
AR 224508
DI 10.1103/PhysRevB.87.224508
PG 7
WC Physics, Condensed Matter
SC Physics
GA 167CX
UT WOS:000320609300003
ER
PT J
AU Koh, WK
Koposov, AY
Stewart, JT
Pal, BN
Robel, I
Pietryga, JM
Klimov, VI
AF Koh, Weon-kyu
Koposov, Alexey Y.
Stewart, John T.
Pal, Bhola N.
Robel, Istvan
Pietryga, Jeffrey M.
Klimov, Victor I.
TI Heavily doped n-type PbSe and PbS nanocrystals using ground-state charge
transfer from cobaltocene
SO SCIENTIFIC REPORTS
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; SEMICONDUCTOR NANOCRYSTALS; QUANTUM DOTS;
ELECTRONIC-STRUCTURE; INFRARED-EMISSION; FILMS; INJECTION; TRANSPORT;
SOLIDS; BRIGHT
AB Colloidal nanocrystals (NCs) of lead chalcogenides are a promising class of tunable infrared materials for applications in devices such as photodetectors and solar cells. Such devices typically employ electronic materials in which charge carrier concentrations are manipulated through "doping;" however, persistent electronic doping of these NCs remains a challenge. Here, we demonstrate that heavily doped n-type PbSe and PbS NCs can be realized utilizing ground-state electron transfer from cobaltocene. This allows injecting up to eight electrons perNCinto the band-edge state and maintaining the doping level for at least a month at room temperature. Doping is confirmed by inter- and intra-band optical absorption, as well as by carrier dynamics. Finally, FET measurements of doped NC films and the demonstration of a p-n diode provide additional evidence that the developed doping procedure allows for persistent incorporation of electrons into the quantum-confined NC states.
C1 [Koh, Weon-kyu; Koposov, Alexey Y.; Stewart, John T.; Pal, Bhola N.; Robel, Istvan; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Ctr Adv Solar Photophys, Los Alamos, NM 87545 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Ctr Adv Solar Photophys, POB 1663, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
RI Koh, Weon-kyu/G-8623-2013; Robel, Istvan/D-4124-2011; Koposov,
Alexey/R-9423-2016;
OI Robel, Istvan/0000-0002-9738-7728; Koposov, Alexey/0000-0001-5898-3204;
Koh, Weon-kyu/0000-0002-6913-4184; Klimov, Victor/0000-0003-1158-3179
FU Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences (OBES); LANL Director's Postdoctoral Fellowship
FX W.-k. K., A.Y.K., I.R., J.M.P. and V.I.K. acknowledge support of the
Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center funded by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences (OBES). J.T.S is a CASP member
supported by LANL Director's Postdoctoral Fellowship. The authors are
grateful to Darrick J. Williams for conducting small-angle X-ray
scattering measurements, Qianglu Lin for providing PbSe/CdSe core/shell
NC samples, Hue Nguyen for help with LabView programming, and Youngil
Park for assistance in FT-IR measurements.
NR 33
TC 34
Z9 34
U1 9
U2 103
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 18
PY 2013
VL 3
AR 2004
DI 10.1038/srep02004
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 165RJ
UT WOS:000320500900001
PM 23774224
ER
PT J
AU Dassanayake, RS
Cabelli, DE
Brasch, NE
AF Dassanayake, Rohan S.
Cabelli, Diane E.
Brasch, Nicola E.
TI Pulse Radiolysis Studies on the Reaction of the Reduced Vitamin B-12
Complex Cob(II)alamin with Superoxide
SO CHEMBIOCHEM
LA English
DT Article
DE cobalamins; kinetics; pulse radiolysis; superoxides; vitamins
ID NITRIC-OXIDE; HYDROGEN-PEROXIDE; B-12 TRAFFICKING; DISMUTASES;
COBALAMIN; RADICALS
C1 [Dassanayake, Rohan S.; Brasch, Nicola E.] Kent State Univ, Dept Chem & Biochem, Kent, OH 44242 USA.
[Dassanayake, Rohan S.; Brasch, Nicola E.] Kent State Univ, Sch Biomed Sci, Kent, OH 44242 USA.
[Cabelli, Diane E.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Cabelli, DE (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM cabelli@bnl.gov; nbrasch@kent.edu
FU US National Institute of General Medical Sciences of the National
Institutes of Health [1R15GM094707-01A1]; U.S. DOE Office of Science,
Division of Chemical Sciences, Geosciences and Biosciences
[DE-AC02-98CH10886]
FX The authors thank Dr. Edward Suarez-Moreira for his valuable
suggestions. This research was funded by the US National Institute of
General Medical Sciences of the National Institutes of Health under
award number 1R15GM094707-01A1. The content is solely the responsibility
of the authors and does not necessarily represent the official views of
the National Institutes of Health. The work at Brookhaven National
laboratory was carried out at the Accelerator Center for Energy
Research, which is supported by the U.S. DOE Office of Science, Division
of Chemical Sciences, Geosciences and Biosciences under Contract No.
DE-AC02-98CH10886.
NR 29
TC 3
Z9 3
U1 0
U2 7
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1439-4227
EI 1439-7633
J9 CHEMBIOCHEM
JI ChemBioChem
PD JUN 17
PY 2013
VL 14
IS 9
BP 1081
EP 1083
DI 10.1002/cbic.201300229
PG 3
WC Biochemistry & Molecular Biology; Chemistry, Medicinal
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy
GA 237EK
UT WOS:000325851100009
PM 23671003
ER
PT J
AU Dong, WB
Wang, HX
Olmstead, MM
Fettinger, JC
Nix, J
Uchiyama, H
Tsutsui, S
Baron, AQR
Dowty, E
Cramer, SP
AF Dong, Weibing
Wang, Hongxin
Olmstead, Marilyn M.
Fettinger, James C.
Nix, Jay
Uchiyama, Hiroshi
Tsutsui, Satoshi
Baron, Alfred Q. R.
Dowty, Eric
Cramer, Stephen P.
TI Inelastic X-ray Scattering of a Transition-Metal Complex (FeCl4-):
Vibrational Spectroscopy for All Normal Modes
SO INORGANIC CHEMISTRY
LA English
DT Article
ID DYNAMICS
AB The tetraethylammonium salt of the transition-metal complex FeCl4- has been examined using inelastic X-ray scattering (IXS) with 1.5 meV resolution (12 cm(-1)) at 21.747 keV. This sample serves as a feasibility test for more elaborate transition-metal complexes. The IXS spectra were compared with previously recorded IR, Raman, and nuclear resonant vibrational spectroscopy (NRVS) spectra, revealing the same normal modes but with less strict selection rules. Calculations with a previously derived Urey-Bradley force field were used to simulate the expected Q and orientation dependence of the IXS intensities. The relative merits of IXS, compared to other photon-based vibrational spectroscopies such as NRVS, Raman, and IR, are discussed.
C1 [Dong, Weibing; Wang, Hongxin; Olmstead, Marilyn M.; Fettinger, James C.; Cramer, Stephen P.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA.
[Wang, Hongxin; Nix, Jay; Cramer, Stephen P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Uchiyama, Hiroshi; Tsutsui, Satoshi; Baron, Alfred Q. R.] SPring 8 JASRI, Res & Utilizat Div, Sayo, Hyogo 6795198, Japan.
[Baron, Alfred Q. R.] RIKEN SPring 8 Ctr, Mat Dynam Lab, Sayo, Hyogo 6795148, Japan.
[Dowty, Eric] Shape Software, Kingsport, TN 37663 USA.
RP Cramer, SP (reprint author), Univ Calif Davis, Dept Chem, Davis, CA 95616 USA.
EM spjcramer@ucdavis.edu
FU NIH [GM-65440]; DOE Office of Biological and Environmental Research
FX This work was funded by NIH Grant GM-65440 (to S.P.C.) and the DOE
Office of Biological and Environmental Research (S.P.C.). The
experiments were performed at BL35XU of SPring-8 with the approval JASRI
(Proposal No. 2011B1361).
NR 21
TC 2
Z9 2
U1 0
U2 23
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
EI 1520-510X
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 6767
EP 6769
DI 10.1021/ic400353j
PG 3
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200001
PM 23668798
ER
PT J
AU Knope, KE
Soderholm, L
AF Knope, Karah E.
Soderholm, L.
TI Plutonium(IV) Cluster with a Hexanuclear [Pu-6(OH)(4)O-4](12+) Core
SO INORGANIC CHEMISTRY
LA English
DT Article
ID THORIUM(IV) MOLECULAR CLUSTERS; AQUEOUS-SOLUTION; HYDROLYSIS; CHEMISTRY;
OXIDE; POLYMERIZATION; COMPOUND; PRODUCTS
AB A mixed hydroxo/oxo plutonium(IV) carboxylate resulting from the hydrolysis and condensation of Pu-IV in an acidic aqueous solution has been isolated. The structure of Li-6[Pu-6(OH)(4)O-4(H2O)(6)(HGly)(12)]Cl-18 center dot 10.5H(2)O (1) consists of a cationic [Pu-6(OH)(4)O-4](12+) core that is decorated by glycine ligands. The synthesis, structure, and characterization of the hexanuclear unit, which represents the first example of a Pu-IV polynuclear complex containing both hydroxo- and oxo-bridging ligands, are described herein.
C1 [Knope, Karah E.; Soderholm, L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Knope, KE (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM kknope@anl.gov
FU U.S. Department of Energy (DOE) [DE-AC02-06CH11357]; DOE Office of Basic
Energy Sciences, Single-Investigator and Small-Group Research (SISGR)
Project
FX This work was performed at Argonne National Laboratory, operated by
UChicagoArgonne LLC for the U.S. Department of Energy (DOE) under
Contract DE-AC02-06CH11357, and was supported by a DOE Office of Basic
Energy Sciences, Single-Investigator and Small-Group Research (SISGR)
Project.
NR 36
TC 23
Z9 23
U1 4
U2 44
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 6770
EP 6772
DI 10.1021/ic4007185
PG 3
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200002
PM 23713867
ER
PT J
AU Zhu, MQ
Puls, BW
Frandsen, C
Kubicki, JD
Zhang, HZ
Waychunas, GA
AF Zhu, Mengqiang
Puls, Brendan W.
Frandsen, Cathrine
Kubicki, James D.
Zhang, Hengzhong
Waychunas, Glenn A.
TI In Situ Structural Characterization of Ferric Iron Dimers in Aqueous
Solutions: Identification of mu-Oxo Species
SO INORGANIC CHEMISTRY
LA English
DT Article
ID RAY-ABSORPTION-SPECTROSCOPY; 2ND HYDRATION SHELL; FINE-STRUCTURE;
MOSSBAUER-SPECTROSCOPY; ELECTRONIC-STRUCTURE; MOLECULAR-STRUCTURE;
MAGNETIC-PROPERTIES; METAL-COMPLEXES; WATER-EXCHANGE; IRON(III)
AB The structure of ferric iron (Fe3+) dimers in aqueous solutions has long been debated. In this work, we have determined the dimer structure in situ in aqueous solutions using extended X-ray absorption fine structure (EXAFS) spectroscopy. An Fe K-edge EXAFS analysis of 0.2 M ferric nitrate solutions at pH 1.28-1.81 identified a Fe-Fe distance at similar to 3.6 angstrom, strongly indicating that the dimers take the mu-oxo form. The EXAFS analysis also indicates two short Fe-O bonds at similar to 1.80 angstrom and ten long Fe-O bonds at similar to 2.08 angstrom, consistent with the mu-oxo dimer structure. The scattering from the Fe Fe paths interferes destructively with that from paths belonging to Fe(OH2)(6)(3+) monomers that coexist with the dimers, leading to a less apparent Fe shell in the EXAFS Fourier transform. This might be a reason why the characteristic Fe Fe distance was not detected in previous EXAFS studies. The existence of mu-oxo dimers is further confirmed by Mossbauer analyses of analogous quick frozen solutions. This work also explores the electronic structure and the relative stability of the mu-oxo dimer in a comparison to the dihydroxo dimer using density function theory (DFT) calculations. The identification of such dimers in aqueous solutions has important implications for iron (bio)inorganic chemistry and geochemistry, such as understanding the formation mechanisms of Fe oxyhydroxides at molecular scale.
C1 [Zhu, Mengqiang; Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Puls, Brendan W.; Kubicki, James D.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
[Puls, Brendan W.; Kubicki, James D.] Penn State Univ, Earth & Environm Syst Inst, University Pk, PA 16802 USA.
[Frandsen, Cathrine] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark.
[Zhang, Hengzhong] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
RP Waychunas, GA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM GAWaychunas@lbl.gov
RI Frandsen, Cathrine/A-5729-2011; Kubicki, James/I-1843-2012
OI Frandsen, Cathrine/0000-0001-5006-924X; Kubicki,
James/0000-0002-9277-9044
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-05CH11231]; National Science Foundation (NSF) [CHE-0714121];
Danish Councils for Independent Research; U.S. DOE Office of Science,
Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX The work was supported by the U.S. Department of Energy, Office of Basic
Energy Sciences, under Award Number DE-AC02-05CH11231 to Lawrence
Berkeley National laboratory. B.W.P. and J.D.K. acknowledge support from
the National Science Foundation (NSF) Collaborative Research in
Chemistry grant "Structure and properties of disordered
iron-oxyhydroxides" (CHE-0714121). Computational support was provided by
the Research Computing and Cyberinfrastructure group at The Pennsylvania
State University. C.F. acknowledges funding from The Danish Councils for
Independent Research. The authors are grateful to Dr. Syed Khalid for
his assistance during data collection at beamline X18B at the National
Synchrotron Light Source, Brookhaven National Laboratory. Use of the
National Synchrotron Light Source, Brookhaven National Laboratory, was
supported by the U.S. DOE Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-98CH10886. Portions of this
research were carried out at the Stanford Synchrotron Radiation
Laboratory, a national user facility operated by Stanford University on
behalf of the U.S. Department of Energy, Office of Basic Energy
Sciences.
NR 61
TC 10
Z9 10
U1 2
U2 52
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
EI 1520-510X
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 6788
EP 6797
DI 10.1021/ic302053w
PG 10
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200008
PM 23701439
ER
PT J
AU Sakaki, K
Terashita, N
Kim, H
Proffen, T
Majzoub, EH
Tsunokake, S
Nakamura, Y
Akiba, E
AF Sakaki, K.
Terashita, N.
Kim, H.
Proffen, T.
Majzoub, E. H.
Tsunokake, S.
Nakamura, Y.
Akiba, E.
TI Crystal Structure and Local Structure of Mg2-xPrxNi4 (x=0.6 and 1.0)
Deuteride Using in Situ Neutron Total Scattering
SO INORGANIC CHEMISTRY
LA English
DT Article
ID X-RAY-DIFFRACTION; INITIAL ACTIVATION PROCESS; TOTAL-ENERGY
CALCULATIONS; AUGMENTED-WAVE METHOD; HYDROGENATION PROPERTIES;
INTERMETALLIC COMPOUNDS; AB-INITIO; PSEUDO-AB(2) COMPOUNDS; POWDER
DIFFRACTION; BASIS-SET
AB We studied crystal structure and local structure of Mg2-xPrxNi4 (x = 0.6 and 1.0) and their deuterides using in situ neutron total scattering and first-principles calculations. The total scattering data were analyzed using Rietveld refinement and pair distribution function analysis (PDF). The crystal structure of Mg2-xPrxNi4 before deuterium absorption was C15b in space group F (4) over bar 3m. No difference between the crystal and local (PDF) structures was observed. The crystal structure of Mg1.0Pr1.0Ni4D similar to 4 was found to be orthorhombic in space group Pmn2(1), with three deuterium occupation sites: PrNi3 and two types of bipyramidal Pr2MgNi2 that have a plane of symmetry composed of MgNi2. There is no significant difference between the crystal structure and the local structure of Mg10Pr1.0Ni4D similar to 4. On the other hand, the average crystal structure of the Mg-rich Mg1.4Pr0.6Ni4D similar to 3.6 was C15b with two deuterium occupation sites: PrNi3 and MgPrNi2 suggesting that the deuterium occupation shifts away from the Pr2MgNi2 bipyramid. First-principles relaxed structures also showed the shift of the hydrogen occupation site toward the Pr atom of the bipyramid, when induced by Mg substitution for the opposing Pr, resulting in hydrogen occupation in the MgPrNi2 tetrahedral site. The PDF pattern of Mg1.4Pr0.6Ni4D similar to 3.6 cannot be refined below 7.2 angstrom in atomic distances using the C15b structure which was obtained from Rietveld refinement but can be done using an orthorhombic structure. It suggests that Mg1.4Pr0.6Ni4D similar to 3.6 was locally distorted to the orthorhombic.
C1 [Sakaki, K.; Kim, H.; Nakamura, Y.; Akiba, E.] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3050035, Japan.
[Terashita, N.; Tsunokake, S.] Japan Met & Chem Co Ltd, Yamagata 9991351, Japan.
[Proffen, T.] Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, Los Alamos, NM 87545 USA.
[Majzoub, E. H.] Univ Missouri, Ctr Neurosci, St Louis, MO 63121 USA.
[Majzoub, E. H.] Univ Missouri, Dept Phys & Astron, St Louis, MO 63121 USA.
[Akiba, E.] Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan.
[Akiba, E.] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan.
RP Sakaki, K (reprint author), Natl Inst Adv Ind Sci & Technol, AIST Cent 5,1-1-1 Higashi, Tsukuba, Ibaraki 3050035, Japan.
EM kouji.sakaki@aist.go.jp
RI Proffen, Thomas/B-3585-2009
OI Proffen, Thomas/0000-0002-1408-6031
FU New Energy and Industrial Technology Development Organization (NEDO);
DOE Office of Basic Energy Sciences; Los Alamos National Security LLC
[DE-AC52-06NA25396]
FX Part of this work was supported by New Energy and Industrial Technology
Development Organization (NEDO) under its "Advanced Fundamental Research
Project on Hydrogen Storage Materials" and "Development of technologies
for hydrogen production, delivery and storage system". We thank Joan
Siewenie for help with the experiments. Work performed at the Lujan
Neutron Scattering Center was funded by the DOE Office of Basic Energy
Sciences. Los Alamos National Laboratory is operated by Los Alamos
National Security LLC under Contract DE-AC52-06NA25396.
NR 42
TC 7
Z9 7
U1 2
U2 31
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 7010
EP 7019
DI 10.1021/ic400528u
PG 10
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200029
PM 23724781
ER
PT J
AU Wibowo, AC
Malliakas, CD
Liu, ZF
Peters, JA
Sebastian, M
Chung, DY
Wessels, BW
Kanatzidis, MG
AF Wibowo, Arief C.
Malliakas, Christos D.
Liu, Zhifu
Peters, John A.
Sebastian, Maria
Chung, Duck Young
Wessels, Bruce W.
Kanatzidis, Mercouri G.
TI Photoconductivity in the Chalcohalide Semiconductor, SbSeI: a New
Candidate for Hard Radiation Detection
SO INORGANIC CHEMISTRY
LA English
DT Article
ID V(A)-VI(A)-VII(A) SINGLE-CRYSTALS; UP-CONVERSION LUMINESCENCE;
ION-EXCHANGE PROPERTIES; GAMMA-RAY DETECTION; OPTICAL-PROPERTIES; X-RAY;
PHASE-TRANSITIONS; ROOM-TEMPERATURE; ANTIMONY; GLASSES
AB We investigated an antimony chalcohalide compound, SbSeI, as a potential semiconductor material for X-ray and gamma-ray detection. SbSeI has a wide band gap of 1.70 eV with a density of 5.80 g/cm(3), and it crystallizes in the orthorhombic Pnma space group with a one-dimensional chain structure comprised of infinite zigzag chains of dimers [Sb2Se4I8](n) running along the crystallographic b axis. In this study, we investigate conditions for vertical Bridgman crystal growth using combinations of the peak temperature and temperature gradients as well as translation rate set in a three-zone furnace. SbSeI samples grown at 495 degrees C peak temperature and 19 degrees C/cm temperature gradient with 2.5 mm/h translation rate produced a single phase of columnar needlelike crystals aligned along the translational direction of the growth. The ingot sample exhibited an n-type semiconductor with resistivity of similar to 10(8) Omega.cm. Photoconductivity measurements on these specimens allowed us to determine mobility-lifetime (mu tau) products for electron and hole carriers that were found to be of similar order of magnitude (similar to 10(-4) cm(2)/V). Further, the SbSeI ingot with well-aligned, one-dimensional columnar needlelike crystals shows an appreciable response of Ag K alpha X-ray.
C1 [Wibowo, Arief C.; Malliakas, Christos D.; Chung, Duck Young; Kanatzidis, Mercouri G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Malliakas, Christos D.; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Liu, Zhifu; Peters, John A.; Sebastian, Maria; Wessels, Bruce W.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
RP Kanatzidis, MG (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM m-kanatzidis@northwestern.edu
RI Wessels, Bruce/B-7541-2009; Wibowo, Arief/D-9418-2014; Liu,
Zhifu/C-6467-2011
OI Wibowo, Arief/0000-0002-2454-4307;
FU Office of Nonproliferation and Verification Research and Development
under National Nuclear Security Administration of the U.S. Department of
Energy [DE-AC02-06CH11357]; Defense Threat Reduction Agency [HDTRA1
09-1-0044]
FX This work was supported by the Office of Nonproliferation and
Verification Research and Development under National Nuclear Security
Administration of the U.S. Department of Energy under Contract
DE-AC02-06CH11357. The work in Northwestern University (by B.W.W.) was
supported by the Defense Threat Reduction Agency through Grant HDTRA1
09-1-0044.
NR 48
TC 10
Z9 10
U1 4
U2 57
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 7045
EP 7050
DI 10.1021/ic401086r
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200032
PM 23713838
ER
PT J
AU Craig, GA
Costa, JS
Teat, SJ
Roubeau, O
Yufit, DS
Howard, JAK
Aromi, G
AF Craig, Gavin A.
Sanchez Costa, Jose
Teat, Simon J.
Roubeau, Olivier
Yufit, Dmitry S.
Howard, Judith A. K.
Aromi, Guillem
TI Multimetastability in a Spin-Crossover Compound Leading to Different
High-Spin-to-Low-Spin Relaxation Dynamics
SO INORGANIC CHEMISTRY
LA English
DT Article
ID FE(II) COORDINATION-COMPOUNDS; WIDE THERMAL HYSTERESIS; IRON(II)
COMPLEX; STATE; TRANSITION; TEMPERATURE; SYSTEM; LIGAND;
L=2,6-DI(PYRAZOL-1-YL)PYRIDINE; PHOTOMAGNETISM
AB The relaxation kinetics of both the thermally trapped and photoinduced high-spin (HS) states of the spin-crossover compound [Fe(H4L)(2)](ClO4)(2)center dot H2O center dot 2(CH3)(2)CO (1) were measured and found to differ significantly. Calorimetry measurements then demonstrated that relaxation of the thermally trapped phase was concurrent with two separate processes, not previously detected as such. Determination of the photogenerated HS structure revealed a new metastable HS state of the system, much closer structurally to the low-spin phase than the thermally trapped one. This difference is proposed as the root of the disparate kinetic behavior, which is proposed to require two processes in the case of the structurally more complex thermally trapped state. Therefore, light irradiation is shown as a mechanism to decouple effectively the structural and magnetic phase transitions that occur in I during the course of its spin crossover.
C1 [Craig, Gavin A.; Sanchez Costa, Jose; Aromi, Guillem] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Spain.
[Teat, Simon J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Roubeau, Olivier] CSIC, ICMA, E-50009 Zaragoza, Spain.
[Yufit, Dmitry S.; Howard, Judith A. K.] Univ Durham, Dept Chem, Durham DH1 3LE, England.
RP Costa, JS (reprint author), Univ Barcelona, Dept Quim Inorgan, Diagonal 647, E-08028 Barcelona, Spain.
EM josesanchezcosta@gmail.com; roubeau@unizar.es; guillem.aromi@qi.ub.es
RI Aromi, Guillem/I-2483-2015; Roubeau, Olivier/A-6839-2010; Sanchez Costa,
Jose/N-9085-2014;
OI Aromi, Guillem/0000-0002-0997-9484; Roubeau,
Olivier/0000-0003-2095-5843; Sanchez Costa, Jose/0000-0001-5426-7956;
Craig, Gavin/0000-0003-3542-4850
FU ERC [258060 FuncMolQIP]; Spanish MCI [CTQ2009-06959, MAT2011-24284];
Office of Science, Office of Basic Energy Sciences, of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX G.A. thanks the Generalitat de Catalunya for the prize ICREA Academia
2008 and the ERC for a Starting Grant (258060 FuncMolQIP). The authors
thank the Spanish MCI for Grants CTQ2009-06959 (to J.S.C., G.A.C., and
G.A.) and MAT2011-24284 (to O.R.). The Advanced Light Source is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy under Contract
DE-AC02-05CH11231. The RSC is thanked for a Journals Grant to
International Authors (J.S.C., D.S.Y., J.A.K.H.).
NR 47
TC 13
Z9 13
U1 0
U2 48
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
EI 1520-510X
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 7203
EP 7209
DI 10.1021/ic400776x
PG 7
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200051
PM 23734732
ER
PT J
AU Sturza, M
Han, F
Shoemaker, DP
Malliakas, CD
Chung, DY
Jin, H
Freeman, AJ
Kanatzidis, MG
AF Sturza, Mihai
Han, Fei
Shoemaker, Daniel P.
Malliakas, Christos D.
Chung, Duck Young
Jin, Hosub
Freeman, Arthur J.
Kanatzidis, Mercouri G.
TI NaBa2Cu3S5: A Doped p-Type Degenerate Semiconductor
SO INORGANIC CHEMISTRY
LA English
DT Article
ID SULFUR-CONTAINING ANIONS; ION-EXCHANGE PROPERTIES; CU-O SYSTEM;
CRYSTAL-STRUCTURE; INORGANIC POLYSULFIDES; PHYSICAL-PROPERTIES;
DIMENSIONAL METAL; PHASE-TRANSITION; COPPER SULFIDE; SUPERCONDUCTIVITY
AB Mixed S2-/S1- oxidation states have been,discovered in the new quaternary compound NaBa2Cu3S5. Synthesized from the reaction of Cu in a molten alkali metal/polysulfide flux, the compound crystallizes in monoclinic space group C2/m with a = 16.5363(7) angstrom, b = 5.5374(5) degrees, c = 10.3717(10) angstrom, beta = 98.535(8)degrees. The Na+ Ba-2(+2) [Cu3+S3]S-3-(2)2- crystal structure contains layers of edge sharing CuS4 tetrahedra and sheets of S-2(2-) dimers. These layers are separated by mixed Ba/Na cation layers. The conductivity of the single crystals of NaBa2Cu3S5 is similar to 450 S cm(-1) at room temperature, and increasing conductivity with decreasing temperature is observed, indicating metallic behavior despite the optical band gap of 0.45 eV. A small positive thermopower (45-55 mu V K-1 from 300 K to 500 K) and Hall effect measurements also confirm p-type conductivity with carrier concentration at 200 K of similar to 1.6 X 10(21) cm(-3) and a hole mobility of similar to 2 cm(2) V-1 s(-1). NaBa2Cu3S5 exhibits temperature-independent Pauli paramagnetism.
C1 [Sturza, Mihai; Han, Fei; Shoemaker, Daniel P.; Malliakas, Christos D.; Chung, Duck Young; Kanatzidis, Mercouri G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Malliakas, Christos D.; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Jin, Hosub; Freeman, Arthur J.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
RP Kanatzidis, MG (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM m-kanatzidis@northwestern.edu
RI Han, Fei/N-2021-2013
OI Han, Fei/0000-0001-7782-2713
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX This work is supported by the U.S. Department of Energy, Office of Basic
Energy Sciences under contract no. DE-AC02-06CH11357.
NR 79
TC 6
Z9 6
U1 5
U2 57
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
EI 1520-510X
J9 INORG CHEM
JI Inorg. Chem.
PD JUN 17
PY 2013
VL 52
IS 12
BP 7210
EP 7217
DI 10.1021/ic4008284
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 168ET
UT WOS:000320689200052
PM 23731247
ER
PT J
AU Halverson, JD
Tkachenko, AV
AF Halverson, Jonathan D.
Tkachenko, Alexei V.
TI DNA-programmed mesoscopic architecture
SO PHYSICAL REVIEW E
LA English
DT Article
ID BUILDING-BLOCKS; CRYSTALLIZATION; DESIGN; NANOPARTICLES; HYBRIDIZATION;
CLUSTERS; CRYSTALS; COLLOIDS
AB We study the problem of the self-assembly of nanoparticles (NPs) into finite mesoscopic structures with a programmed local morphology and complex overall shape. Our proposed building blocks are NPs that are directionally functionalized with DNA. The combination of directionality and selectivity of interactions allows one to avoid unwanted metastable configurations, which have been shown to lead to slow self-assembly kinetics even in much simpler systems. With numerical simulations, we show that a variety of target mesoscopic objects can be designed and self-assembled in near perfect yield. They include cubes, pyramids, boxes, and even an Empire State Building model. We summarize our findings with a set of design strategies that leads to the successful self-assembly of a wide range of mesostructures.
C1 [Halverson, Jonathan D.; Tkachenko, Alexei V.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Halverson, JD (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM oleksiyt@bnl.gov
RI Tkachenko, Alexei/I-9040-2012
OI Tkachenko, Alexei/0000-0003-1291-243X
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]
FX This work benefited from discussions with O. Gang, M. Hybertsen, W.
Sherman, P. Chaikin, K.-T. Wu, and G. S. Grest. Research carried out in
whole at the Center for Functional Nanomaterials, Brookhaven National
Laboratory, which is supported by the U.S. Department of Energy, Office
of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886.
NR 32
TC 34
Z9 34
U1 2
U2 36
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 17
PY 2013
VL 87
IS 6
AR 062310
DI 10.1103/PhysRevE.87.062310
PG 7
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 167EF
UT WOS:000320613000005
PM 23848678
ER
PT J
AU Adamson, P
Anghel, I
Backhouse, C
Barr, G
Bishai, M
Blake, A
Bock, GJ
Bogert, D
Cao, SV
Castromonte, CM
Childress, S
Coelho, JAB
Corwin, L
Cronin-Hennessy, D
de Jong, JK
Devan, AV
Devenish, NE
Diwan, MV
Escobar, CO
Evans, JJ
Falk, E
Feldman, GJ
Frohne, MV
Gallagher, HR
Gomes, RA
Goodman, MC
Gouffon, P
Graf, N
Gran, R
Grzelak, K
Habig, A
Hahn, SR
Hartnell, J
Hatcher, R
Himmel, A
Holin, A
Hylen, J
Irwin, GM
Isvan, Z
James, C
Jensen, D
Kafka, T
Kasahara, SMS
Koizumi, G
Kordosky, M
Kreymer, A
Lang, K
Ling, J
Litchfield, PJ
Lucas, P
Mann, WA
Marshak, ML
Mathis, M
Mayer, N
McGowan, AM
Medeiros, MM
Mehdiyev, R
Meier, JR
Messier, MD
Michael, DG
Miller, WH
Mishra, SR
Sher, SM
Moore, CD
Mualem, L
Musser, J
Naples, D
Nelson, JK
Newman, HB
Nichol, RJ
Nowak, JA
O'Connor, J
Oliver, WP
Orchanian, M
Pahlka, RB
Paley, J
Patterson, RB
Pawloski, G
Phan-Budd, S
Plunkett, RK
Qiu, X
Radovic, A
Rebel, B
Rosenfeld, C
Rubin, HA
Sanchez, MC
Schneps, J
Schreckenberger, A
Schreiner, P
Sharma, R
Sousa, A
Tagg, N
Talaga, RL
Thomas, J
Thomson, MA
Tinti, G
Tognini, SC
Toner, R
Torretta, D
Tzanakos, G
Urheim, J
Vahle, P
Viren, B
Weber, A
Webb, RC
White, C
Whitehead, L
Whitehead, LH
Wojcicki, SG
Zwaska, R
AF Adamson, P.
Anghel, I.
Backhouse, C.
Barr, G.
Bishai, M.
Blake, A.
Bock, G. J.
Bogert, D.
Cao, S. V.
Castromonte, C. M.
Childress, S.
Coelho, J. A. B.
Corwin, L.
Cronin-Hennessy, D.
de Jong, J. K.
Devan, A. V.
Devenish, N. E.
Diwan, M. V.
Escobar, C. O.
Evans, J. J.
Falk, E.
Feldman, G. J.
Frohne, M. V.
Gallagher, H. R.
Gomes, R. A.
Goodman, M. C.
Gouffon, P.
Graf, N.
Gran, R.
Grzelak, K.
Habig, A.
Hahn, S. R.
Hartnell, J.
Hatcher, R.
Himmel, A.
Holin, A.
Hylen, J.
Irwin, G. M.
Isvan, Z.
James, C.
Jensen, D.
Kafka, T.
Kasahara, S. M. S.
Koizumi, G.
Kordosky, M.
Kreymer, A.
Lang, K.
Ling, J.
Litchfield, P. J.
Lucas, P.
Mann, W. A.
Marshak, M. L.
Mathis, M.
Mayer, N.
McGowan, A. M.
Medeiros, M. M.
Mehdiyev, R.
Meier, J. R.
Messier, M. D.
Michael, D. G.
Miller, W. H.
Mishra, S. R.
Sher, S. Moed
Moore, C. D.
Mualem, L.
Musser, J.
Naples, D.
Nelson, J. K.
Newman, H. B.
Nichol, R. J.
Nowak, J. A.
O'Connor, J.
Oliver, W. P.
Orchanian, M.
Pahlka, R. B.
Paley, J.
Patterson, R. B.
Pawloski, G.
Phan-Budd, S.
Plunkett, R. K.
Qiu, X.
Radovic, A.
Rebel, B.
Rosenfeld, C.
Rubin, H. A.
Sanchez, M. C.
Schneps, J.
Schreckenberger, A.
Schreiner, P.
Sharma, R.
Sousa, A.
Tagg, N.
Talaga, R. L.
Thomas, J.
Thomson, M. A.
Tinti, G.
Tognini, S. C.
Toner, R.
Torretta, D.
Tzanakos, G.
Urheim, J.
Vahle, P.
Viren, B.
Weber, A.
Webb, R. C.
White, C.
Whitehead, L.
Whitehead, L. H.
Wojcicki, S. G.
Zwaska, R.
CA MINOS Collaboration
TI Measurement of Neutrino and Antineutrino Oscillations Using Beam and
Atmospheric Data in MINOS
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID CALORIMETERS
AB We report measurements of oscillation parameters from v(mu) and (v) over bar (mu) disappearance using beam and atmospheric data from MINOS. The data comprise exposures of 10.71 X 10(20) protons on target in the v(mu)-dominated beam, 3.36 X 10(20) protons on target in the (v) over bar (mu)-enhanced beam, and 37.88 kton yr of atmospheric neutrinos. Assuming identical v and (v) over bar oscillation parameters, we measure vertical bar Delta m(2)vertical bar = (2.41(-0.10)(+0.09)) X 10(-3) eV(2) and sin(2)(2 theta) = 0.950(-0.036)(+0.035). Allowing independent v and (v) over bar oscillations, we measure antineutrino parameters of vertical bar(m) over bar (2)vertical bar = (2.50(-0.250)(+0.23)) X 10(-3) eV(2) and sin(2)(2 (theta) over bar) = 0.97(-0.08)(+0.03), with minimal change to the neutrino parameters.
C1 [Anghel, I.; Goodman, M. C.; McGowan, A. M.; Paley, J.; Phan-Budd, S.; Sanchez, M. C.; Schreiner, P.; Talaga, R. L.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Tzanakos, G.] Univ Athens, Dept Phys, GR-15771 Athens, Greece.
[Bishai, M.; Diwan, M. V.; Isvan, Z.; Ling, J.; Viren, B.; Whitehead, L.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Himmel, A.; Michael, D. G.; Mualem, L.; Newman, H. B.; Orchanian, M.; Patterson, R. B.] CALTECH, Lauritsen Lab, Pasadena, CA 91125 USA.
[Blake, A.; Thomson, M. A.; Toner, R.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Coelho, J. A. B.; Escobar, C. O.] Univ Estadual Campinas, IFGW UNICAMP, BR-13083970 Campinas, SP, Brazil.
[Sousa, A.] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA.
[Adamson, P.; Bock, G. J.; Bogert, D.; Childress, S.; Hahn, S. R.; Hatcher, R.; Hylen, J.; James, C.; Jensen, D.; Koizumi, G.; Kreymer, A.; Lucas, P.; Sher, S. Moed; Moore, C. D.; Pahlka, R. B.; Plunkett, R. K.; Rebel, B.; Sharma, R.; Torretta, D.; Zwaska, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Castromonte, C. M.; Gomes, R. A.; Medeiros, M. M.; Tognini, S. C.] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil.
[Feldman, G. J.; Sousa, A.; Toner, R.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
[Frohne, M. V.] Coll Holy Cross, Notre Dame, IN 46556 USA.
[Whitehead, L.] Univ Houston, Dept Phys, Houston, TX 77204 USA.
[Graf, N.; Rubin, H. A.; White, C.] IIT, Dept Phys, Chicago, IL 60616 USA.
[Corwin, L.; Mayer, N.; Messier, M. D.; Musser, J.; Urheim, J.] Indiana Univ, Bloomington, IN 47405 USA.
[Anghel, I.; Sanchez, M. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Evans, J. J.; Holin, A.; Nichol, R. J.; O'Connor, J.; Radovic, A.; Thomas, J.; Whitehead, L. H.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Evans, J. J.] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
[Cronin-Hennessy, D.; Kasahara, S. M. S.; Litchfield, P. J.; Marshak, M. L.; Meier, J. R.; Miller, W. H.; Nowak, J. A.; Pawloski, G.; Schreckenberger, A.] Univ Minnesota, Minneapolis, MN 55455 USA.
[Gran, R.; Habig, A.] Univ Minnesota, Dept Phys, Duluth, MN 55812 USA.
[Tagg, N.] Otterbein Coll, Westerville, OH 43081 USA.
[Backhouse, C.; Barr, G.; de Jong, J. K.; Tinti, G.; Weber, A.] Univ Oxford, Subdept Particle Phys, Oxford OX1 3RH, England.
[Isvan, Z.; Naples, D.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Litchfield, P. J.; Weber, A.] Sci & Technol Facil Council, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Gouffon, P.] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil.
[Mishra, S. R.; Rosenfeld, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Irwin, G. M.; Pawloski, G.; Qiu, X.; Wojcicki, S. G.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Devenish, N. E.; Falk, E.; Hartnell, J.] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England.
[Webb, R. C.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
[Cao, S. V.; Lang, K.; Mehdiyev, R.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Coelho, J. A. B.; Gallagher, H. R.; Kafka, T.; Mann, W. A.; Mayer, N.; Oliver, W. P.; Schneps, J.] Tufts Univ, Dept Phys, Medford, MA 02155 USA.
[Grzelak, K.] Univ Warsaw, Dept Phys, PL-00681 Warsaw, Poland.
[Devan, A. V.; Kordosky, M.; Mathis, M.; Nelson, J. K.; Vahle, P.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
RP Adamson, P (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
RI Coelho, Joao/D-3546-2013; Castromonte Flores, Cesar Manuel/O-6177-2014;
Evans, Justin/P-4981-2014; Tinti, Gemma/I-5886-2013; Gomes,
Ricardo/B-6899-2008; Gouffon, Philippe/I-4549-2012; Nowak,
Jaroslaw/P-2502-2016; Ling, Jiajie/I-9173-2014; Inst. of Physics, Gleb
Wataghin/A-9780-2017;
OI Weber, Alfons/0000-0002-8222-6681; Cao, Son/0000-0002-9046-5324;
Castromonte Flores, Cesar Manuel/0000-0002-9559-3704; Evans,
Justin/0000-0003-4697-3337; Gomes, Ricardo/0000-0003-0278-4876; Gouffon,
Philippe/0000-0001-7511-4115; Nowak, Jaroslaw/0000-0001-8637-5433; Ling,
Jiajie/0000-0003-2982-0670; Corwin, Luke/0000-0001-7143-3821; Hartnell,
Jeffrey/0000-0002-1744-7955
FU U.S. DOE; United Kingdom STFC; U.S. NSF; State and University of
Minnesota; University of Athens, Greece; Brazil's FAPESP; Brazil's CNPq;
Brazil's CAPES
FX This work was supported by the U.S. DOE, the United Kingdom STFC, the
U.S. NSF, the State and University of Minnesota, the University of
Athens, Greece, Brazil's FAPESP, CNPq, and CAPES. We are grateful to the
Minnesota Department of Natural Resources and the personnel of the
Soudan Laboratory and Fermilab. We thank Texas Advanced Computing Center
at The University of Texas at Austin for the provision of computing
resources.
NR 25
TC 55
Z9 55
U1 1
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 17
PY 2013
VL 110
IS 25
AR 251801
DI 10.1103/PhysRevLett.110.251801
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 167EM
UT WOS:000320613800003
PM 23829728
ER
PT J
AU Chuang, S
Kapadia, R
Fang, H
Chang, TC
Yen, WC
Chueh, YL
Javey, A
AF Chuang, Steven
Kapadia, Rehan
Fang, Hui
Chang, Ting Chia
Yen, Wen-Chun
Chueh, Yu-Lun
Javey, Ali
TI Near-ideal electrical properties of InAs/WSe2 van der Waals
heterojunction diodes
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID MOLECULAR-BEAM EPITAXY; GRAPHENE HETEROSTRUCTURES; SEMICONDUCTOR;
ELECTRONICS; TRANSISTORS; LAYER
AB Here, we present the fabrication and electrical analysis of InAs/WSe2 van der Waals heterojunction diodes formed by the transfer of ultrathin membranes of one material upon another. Notably, InAs and WSe2 are two materials with completely different crystal structures, which heterojunction is inconceivable with traditional epitaxial growth techniques. Clear rectification from the n-InAs/p-WSe2 junction (forward/reverse current ratio >10(6)) is observed. A low reverse bias current <10(-12) A/mu m(2) and ideality factor of similar to 1.1 were achieved, suggesting near-ideal electrically active interfaces. (C) 2013 AIP Publishing LLC.
C1 [Chuang, Steven; Kapadia, Rehan; Fang, Hui; Chang, Ting Chia; Javey, Ali] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Chuang, Steven; Kapadia, Rehan; Fang, Hui; Javey, Ali] Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA.
[Fang, Hui; Javey, Ali] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Yen, Wen-Chun; Chueh, Yu-Lun] Natl Tsing Hua Univ, Hsinchu 30013, Taiwan.
RP Chuang, S (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.
EM ajavey@berkeley.edu
RI Fang, Hui/I-8973-2014; Javey, Ali/B-4818-2013; Chueh, Yu-Lun/E-2053-2013
OI Fang, Hui/0000-0002-4651-9786; Chueh, Yu-Lun/0000-0002-0155-9987
FU Division of Materials Sciences and Engineering of the U.S. Department of
Energy [De-Ac02-05Ch11231]; Electronic Materials (E-Mat) program;
National Science Council [NSC 101-2112-M-007-015-MY3]; NSF Energy
Efficient Electronics Science Center; World Class University program at
Sunchon National University; Office of Science, Office of Basic Energy
Sciences of the U.S. Department of Energy [De-Ac02-05Ch11231]
FX The materials preparation and characterization parts of this work were
supported by the Director, Office of Science, Office of Basic Energy
Sciences, and Division of Materials Sciences and Engineering of the U.S.
Department of Energy under Contract No. De-Ac02-05Ch11231 and the
Electronic Materials (E-Mat) program. Y.-L.C. acknowledges support from
the National Science Council through Grant No. NSC
101-2112-M-007-015-MY3. The device characterization was supported by NSF
Energy Efficient Electronics Science Center. A.J. acknowledges support
from the World Class University program at Sunchon National University.
NR 32
TC 37
Z9 37
U1 12
U2 92
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242101
DI 10.1063/1.4809815
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400042
ER
PT J
AU Eid, KF
Ocola, LE
Liu, X
Furdyna, JK
AF Eid, K. F.
Ocola, L. E.
Liu, X.
Furdyna, J. K.
TI Large antisymmetric magnetoresistance across chemically etched GaMnAs
nanoconstrictions
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CURIE-TEMPERATURE; TRANSPORT; MN)AS; (GA
AB We report the observation of a highly antisymmetric magnetoresistance in GaMnAs specimens with lateral nano-constrictions. The experiments were carried out on samples with an in-plane easy axis of magnetization, in in-plane applied magnetic field. We attribute this behavior to the formation of isolated nano-sized islands at the nano-constrictions, whose magnetization can undergo out-of-plane reorientation during switching. The change in resistance is up to 50%, which cannot be explained by the normal anisotropic magnetoresistance in GaMnAs. We propose tunneling anisotropic magnetoresistance as the most likely mechanism for this effect. (C) 2013 AIP Publishing LLC.
C1 [Eid, K. F.] Miami Univ, Dept Phys, Oxford, OH 45056 USA.
[Ocola, L. E.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Liu, X.; Furdyna, J. K.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP Eid, KF (reprint author), Miami Univ, Dept Phys, Oxford, OH 45056 USA.
FU U. S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]; NSF [DMR10-05851]
FX We thank S. Lee for fruitful discussions. The use of the Center for
Nanoscale Materials at Argonne National Laboratory was supported by the
U. S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357. The work at Notre Dame
was supported by NSF Grant DMR10-05851.
NR 30
TC 1
Z9 1
U1 1
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242407
DI 10.1063/1.4809785
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400063
ER
PT J
AU Hockel, JL
Pollard, SD
Wetzlar, KP
Wu, T
Zhu, Y
Carman, GP
AF Hockel, J. L.
Pollard, S. D.
Wetzlar, K. P.
Wu, T.
Zhu, Y.
Carman, G. P.
TI Electrically controlled reversible and hysteretic magnetic domain
evolution in nickel film/Pb(Mg1/3Nb2/3)O-3](0.68)-[PbTiO3](0.32) (011)
heterostructure
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID FIELD CONTROL
AB We report direct Lorentz microscopy observations of electrically induced magnetic domain motion in a nickel film/Pb(Mg1/3Nb2/3)O-3](0.68)-[PbTiO3](0.32) (PMN-PT (011)) heterostructure. The 0.5 mm-thick PMN-PT substrate contains a 10 mu m-wide, 60 nm-thick Ni/Pt electron-permeable observation region. Stress from the substrate creates magnetoelastic anisotropy of up to 4 kJ m(-3) in the nickel film resulting in reversible magnetization rotation as well as non-reversible domain wall jumps (i.e., Barkhausen jumps). The observed magnetization of the film is directly related to the local strain gradient as computed by the finite element method, providing strong evidence of the effectiveness of the strain-mediated magnetoelectric approach for device applications. (C) 2013 AIP Publishing LLC.
C1 [Hockel, J. L.; Wetzlar, K. P.; Wu, T.; Carman, G. P.] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA.
[Pollard, S. D.; Zhu, Y.] Brookhaven Natl Lab, Dept Condensed Matter Phys, Upton, NY 11973 USA.
RP Hockel, JL (reprint author), Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA.
RI Pollard, Shawn/H-2722-2012; Pollard, Shawn/I-5360-2015;
OI Pollard, Shawn/0000-0001-9691-0997
FU NSF Nanosystems Engineering Research Center [EEC-1160504]; Air Force
Office of Scientific Research (AFOSR) [FA9550-09-1-0677]; US Department
of Energy, Office of Basic Energy Science, Material Sciences and
Engineering Division [DE-AC02-98CH10886]
FX The authors would like to thank Scott Keller, Jessica Bainbridge-Smith,
and Wei-Yang Sun for their helpful discussions. Noah Bodzin for his
assistance in FIB sample preparation, and the Integrated Systems
Nanofabrication Cleanroom (ISNC) staff at UCLA. This work was supported
by NSF Nanosystems Engineering Research Center for Translational
Applications of Nanoscale Multiferroic Systems (TANMS) Cooperative
Agreement Award EEC-1160504 and the Air Force Office of Scientific
Research (AFOSR) under Grant No. FA9550-09-1-0677 managed by Byung-Lip
(Les) Lee. The work at BNL was supported by the US Department of Energy,
Office of Basic Energy Science, Material Sciences and Engineering
Division, under Contract No. DE-AC02-98CH10886.
NR 17
TC 15
Z9 15
U1 3
U2 67
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242901
DI 10.1063/1.4811249
PG 5
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400073
ER
PT J
AU Li, S
Harrison, SE
Huo, Y
Pushp, A
Yuan, HT
Zhou, B
Kellock, AJ
Parkin, SSP
Chen, YL
Hesjedal, T
Harris, JS
AF Li, S.
Harrison, S. E.
Huo, Y.
Pushp, A.
Yuan, H. T.
Zhou, B.
Kellock, A. J.
Parkin, S. S. P.
Chen, Y. -L.
Hesjedal, T.
Harris, J. S.
TI Magnetic properties of gadolinium substituted Bi2Te3 thin films
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID TOPOLOGICAL INSULATORS; WEAK ANTILOCALIZATION; SURFACE; NANORIBBONS
AB Thin film GdBiTe3 has been proposed as a candidate material in which to observe the quantum anomalous Hall effect. As a thermal non-equilibrium deposition method, molecular beam epitaxy (MBE) has the ability to incorporate large amounts of Gd into Bi2Te3 crystal structures. High-quality rhombohedral (GdxBi1-x)(2)Te-3 films with substitutional Gd concentrations of x <= 0.4 were grown by MBE. Angle-resolved photoemission spectroscopy shows that the topological surface state remains intact up to the highest Gd concentration. Magnetoresistance measurements show weak antilocalization, indicating strong spin orbit interaction. Magnetometry reveals that the films are paramagnetic with a magnetic moment of 6.93 mu(B) per Gd3+ ion. (C) 2013 AIP Publishing LLC.
C1 [Li, S.; Zhou, B.; Chen, Y. -L.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Harrison, S. E.; Huo, Y.; Harris, J. S.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
[Pushp, A.; Kellock, A. J.; Parkin, S. S. P.] IBM Almaden Res Ctr, San Jose, CA 95120 USA.
[Yuan, H. T.] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
[Zhou, B.; Chen, Y. -L.; Hesjedal, T.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England.
[Zhou, B.; Chen, Y. -L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Li, S (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
RI Yuan, Hongtao/C-9807-2012; Hesjedal, Thorsten/C-6853-2014
OI Hesjedal, Thorsten/0000-0001-7947-3692
FU DARPA MESO project [N66001-11-1-4105]; Army Research Laboratories;
Department of Defense (DoD) through the National Defense Science &
Engineering Graduate Fellowship (NDSEG) Program
FX This work was supported by a DARPA MESO project (No. N66001-11-1-4105)
and the Army Research Laboratories. S. E. Harrison was supported by the
Department of Defense (DoD) through the National Defense Science &
Engineering Graduate Fellowship (NDSEG) Program. We thank Haijun Zhang,
Shoucheng Zhang, Xiao Zhang, Ian Fisher, Wei Han, Zhongkai Liu, Desheng
Kong, Dong Liang, Angie Lin, and Tomas Sarmiento for helpful discussions
throughout the course of this work.
NR 22
TC 16
Z9 16
U1 4
U2 86
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242412
DI 10.1063/1.4812292
PG 5
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400068
ER
PT J
AU Mukherjee, P
Zhou, L
Kramer, MJ
Shield, JE
AF Mukherjee, P.
Zhou, Lin
Kramer, M. J.
Shield, J. E.
TI Formation of non-equilibrium Fe-Au solid solutions in nanoclusters
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID GOLD-IRON ALLOYS; MAGNETIC-PROPERTIES; COPPER; DEFECTS; NICKEL; FILMS
AB Fe-Au nanoclusters ranging in composition from similar to 33 to 79 at.% Fe were prepared by inert gas condensation. Resulting phases were single crystalline solid solutions for all compositions with significant defects present. The as-deposited clusters formed in a bcc structure for Fe content >65 at.% and in a fcc structure for Fe <65 at.%. Lattice parameters were expanded beyond rule-of-mixture estimates. The lattice expansion is explained by an analytical self-interstitial model. All clusters were ferromagnetic, although the fcc structures showed low magnetization. The low magnetizations are thought to arise from antiferromagnetic cores with uncompensated ferromagnetic surface spins. (C) 2013 AIP Publishing LLC.
C1 [Mukherjee, P.; Shield, J. E.] Univ Nebraska, Lincoln, NE 68588 USA.
[Mukherjee, P.; Shield, J. E.] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA.
[Zhou, Lin; Kramer, M. J.] US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA.
RP Mukherjee, P (reprint author), Univ Nebraska, Lincoln, NE 68588 USA.
EM grad.pinaki@gmail.com
FU U.S. Department of Energy EPSCoR State and National Laboratory
Partnership Program [DE-SC0001269]; United States Department of Energy
(USDOE), Office of Science (OS), Office of Basic Energy Sciences (BES)
[DE-AC02-07CH11358]
FX This research was supported by the U.S. Department of Energy EPSCoR
State and National Laboratory Partnership Program through Grant No.
DE-SC0001269. The microscopy at Ames Laboratory was supported by the
United States Department of Energy (USDOE), Office of Science (OS),
Office of Basic Energy Sciences (BES) under Contract No.
DE-AC02-07CH11358.
NR 30
TC 8
Z9 8
U1 0
U2 20
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 243103
DI 10.1063/1.4811412
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400087
ER
PT J
AU Pershin, YV
Slipko, VA
Roy, D
Sinitsyn, NA
AF Pershin, Yuriy V.
Slipko, Valeriy A.
Roy, Dibyendu
Sinitsyn, Nikolai A.
TI Two-beam spin noise spectroscopy (vol 102, 202405, 2013)
SO APPLIED PHYSICS LETTERS
LA English
DT Correction
C1 [Pershin, Yuriy V.; Slipko, Valeriy A.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pershin, Yuriy V.; Slipko, Valeriy A.] Univ S Carolina, USC Nanoctr, Columbia, SC 29208 USA.
[Slipko, Valeriy A.] Kharkov Natl Univ, Dept Phys & Technol, UA-61077 Kharkov, Ukraine.
[Roy, Dibyendu; Sinitsyn, Nikolai A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Roy, Dibyendu] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RP Pershin, YV (reprint author), Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
EM pershin@physics.sc.edu
RI Dibyendu, Roy /E-6903-2017
NR 1
TC 0
Z9 0
U1 1
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 249902
DI 10.1063/1.4811649
PG 1
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400129
ER
PT J
AU Pham, TA
Li, TS
Nguyen, HV
Shankar, S
Gygi, F
Galli, G
AF Pham, T. Anh
Li, Tianshu
Huy-Viet Nguyen
Shankar, Sadasivan
Gygi, Francois
Galli, Giulia
TI Band offsets and dielectric properties of the amorphous Si3N4/Si(100)
interface: A first-principles study
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SILICON-NITRIDE; MOLECULAR-DYNAMICS; SI(100)-SIO2 INTERFACE;
ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; GATE OXIDES; PHOTOEMISSION;
TRANSISTORS; FILMS; SI3N4
AB By combining classical and ab-initio simulations, we generated a structural model of an amorphous silicon nitride/silicon(100) interface and we investigated its electronic and dielectric properties from first principles. We computed the valence band offset using many-body perturbation theory, within the GW approximation, and we found results in good agreement with experiments. Based on the computed local band edges and dielectric constants, we estimate that bulk properties are recovered for nitride films with thickness larger than 6-7 angstrom. (C) 2013 AIP Publishing LLC.
C1 [Pham, T. Anh; Galli, Giulia] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA.
[Pham, T. Anh] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Li, Tianshu] George Washington Univ, Dept Civil & Environm Engn, Washington, DC 20052 USA.
[Huy-Viet Nguyen] Vietnam Acad Sci & Technol, Inst Phys, Hanoi, Vietnam.
[Shankar, Sadasivan] Intel Corp, Santa Clara, CA 95052 USA.
[Gygi, Francois] Univ Calif Davis, Dept Comp Sci, Davis, CA 95616 USA.
[Galli, Giulia] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
RP Pham, TA (reprint author), Univ Calif Davis, Dept Chem, Davis, CA 95616 USA.
EM atupham@ucdavis.edu
RI Li, Tianshu/H-6336-2011; Nguyen, Huy-Viet/F-3374-2010
OI Li, Tianshu/0000-0002-0529-543X;
FU Intel Corporation; DoD/ARL [W911NF-12-2-0023]; National Science
Foundation [OCI-1053575]; U.S. Department of Energy at Lawrence
Livermore National Laboratory [DE-AC52-07A27344]; Lawrence Scholar
program; Vietnam's National Foundation for Science and Technology
Development (NAFOSTED) [103.02-2012.42]
FX We acknowledge financial support from Intel Corporation and DoD/ARL
Grant No. W911NF-12-2-0023. This work used the Extreme Science and
Engineering Discovery Environment (XSEDE), which is supported by
National Science Foundation grant number OCI-1053575. Part of this work
was performed under the auspices of the U.S. Department of Energy at
Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07A27344. T.A.P acknowledges support from the Lawrence Scholar
program. H.-V.N. acknowledges support by Vietnam's National Foundation
for Science and Technology Development (NAFOSTED), Grant No.
103.02-2012.42.
NR 41
TC 9
Z9 9
U1 1
U2 35
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 241603
DI 10.1063/1.4811481
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400018
ER
PT J
AU Seagle, CT
Davis, JP
Martin, MR
Hanshaw, HL
AF Seagle, C. T.
Davis, J-P.
Martin, M. R.
Hanshaw, H. L.
TI Shock-ramp compression: Ramp compression of shock-melted tin
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID DYNAMIC COMPRESSIBILITY; METALS; PRESSURES; STATE
AB A technique has been developed at the Sandia Z Accelerator using a magnetically driven flyer plate with a double-ramp pulse shape to generate in a test sample a steady shock followed 10-100 ns later by a quasi-isentropic ramped compression wave. Based on velocity data from multiple samples of differing thicknesses, a technique based on backward minimization is presented that allows the determination of material response along an elevated isentrope through the shock state. Data on quasi-isentropically compressed shock-melted tin indicate a stiffer response than currently available equation-of-state models. (C) 2013 AIP Publishing LLC.
C1 [Seagle, C. T.; Davis, J-P.; Martin, M. R.; Hanshaw, H. L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Seagle, CT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
FU U.S. Department of Energy's National Nuclear Security Administration
[AC04-94AL85000]
FX The authors acknowledge the large team involved in the design,
fabrication, and execution of experiments on the Z Accelerator. This
experiment would not have been possible without their dedicated effort.
Sandia National Laboratories is a multi-program laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000.
NR 26
TC 5
Z9 6
U1 1
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 244104
DI 10.1063/1.4811745
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400120
ER
PT J
AU Shen, NH
Koschny, T
Kafesaki, M
Soukoulis, CM
AF Shen, Nian-Hai
Koschny, Thomas
Kafesaki, Maria
Soukoulis, Costas M.
TI Robust wedge demonstration to optical negative index metamaterials
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID REFRACTIVE-INDEX
AB A robust wedge setup is proposed to unambiguously demonstrate negative refraction for negative index metamaterials. We applied our setup to several optical metamaterials from the literature and distinctly observed the phenomena of negative refraction. This further consolidates the reported negative-index property. It is found that there generally exists a lateral shift for the outgoing beam through the wedge. We derived a simple expression for calculating this beam shift and interestingly, it provides us a strategy to quantitatively estimate the loss of the wedge material (Im[n]). Additionally, we offered a design of metamaterials, compatible with nano-imprinting-lithography, showing negative refractive index in the visible regime (around yellow-light wavelengths). The multi-layer-system retrieval was utilized to extract the effective refractive index of the metamaterial. It was also intuitively characterized through our wedge setup to demonstrate corresponding phenomena of refraction. (C) 2013 AIP Publishing LLC.
C1 [Shen, Nian-Hai; Koschny, Thomas; Soukoulis, Costas M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Shen, Nian-Hai; Koschny, Thomas; Soukoulis, Costas M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Kafesaki, Maria; Soukoulis, Costas M.] FORTH, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece.
[Kafesaki, Maria] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece.
RP Shen, NH (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM nhshen@ameslab.gov
RI Kafesaki, Maria/E-6843-2012; Soukoulis, Costas/A-5295-2008
OI Kafesaki, Maria/0000-0002-9524-2576;
FU Department of Energy (Basic Energy Sciences, Division of Materials
Sciences and Engineering) [DE-AC02-07CH11358]; U.S. Office of Naval
Research [N00014-10-1-0925]; European Community [228637]; ERC [320081]
FX Work at Ames Laboratory was supported by the Department of Energy (Basic
Energy Sciences, Division of Materials Sciences and Engineering) under
Contract No. DE-AC02-07CH11358 and by the U.S. Office of Naval Research,
Award No. N00014-10-1-0925. This was partially supported by the European
Community Project NIM_NIL (Contract No. 228637) and by ERC Grant No.
320081 (PHOTOMETA).
NR 20
TC 0
Z9 0
U1 1
U2 18
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 241915
DI 10.1063/1.4812240
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400036
ER
PT J
AU Sudkamp, T
Bracht, H
Impellizzeri, G
Hansen, JL
Larsen, AN
Haller, EE
AF Suedkamp, T.
Bracht, H.
Impellizzeri, G.
Hansen, J. Lundsgaard
Larsen, A. Nylandsted
Haller, E. E.
TI Doping dependence of self-diffusion in germanium and the charge states
of vacancies
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID GE; ACTIVATION
AB Self-diffusion in boron-doped germanium has been studied at temperatures between 526 and 749 degrees C with secondary ion mass spectrometry. Self-diffusion under acceptor doping is retarded compared to intrinsic conditions. This demonstrates the contribution of charged vacancies in self-diffusion. Taking into account the dominance of doubly negatively charged vacancies under donor doping, the doping dependence of self-diffusion is best described with an inverse level ordering for singly and doubly negatively charged vacancies for all doping conditions. The level ordering explains the dominance of doubly charged vacancies under donor doping and their decreasing contribution with increasing acceptor doping until neutral vacancies mediate self-diffusion. (C) 2013 AIP Publishing LLC.
C1 [Suedkamp, T.; Bracht, H.] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany.
[Impellizzeri, G.] Univ Catania, CNR IMM MATIS, I-95123 Catania, Italy.
[Hansen, J. Lundsgaard; Larsen, A. Nylandsted] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus, Denmark.
[Haller, E. E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Sudkamp, T (reprint author), Univ Munster, Inst Mat Phys, D-48149 Munster, Germany.
EM bracht@uni-muenster.de
FU Deutsche Forschungsgemeinschaft [BR 1520/6-2]; Office of Science, Office
of Basic Energy Sciences, Materials Sciences and Engineering Division of
the U.S. DOE [DE-AC02-05CH11231]
FX The authors thank TASCON GmbH in Munster for the SIMS measurements. This
work was funded by the Deutsche Forschungsgemeinschaft under Grant No.
BR 1520/6-2 as well as an individual grant within the Heisenberg program
for H. B. The isotopically enriched Ge was developed with funding by the
Director, Office of Science, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division of the U.S. DOE under Contract No.
DE-AC02-05CH11231.
NR 22
TC 5
Z9 5
U1 1
U2 17
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUN 17
PY 2013
VL 102
IS 24
AR 242103
DI 10.1063/1.4811442
PG 4
WC Physics, Applied
SC Physics
GA 171XC
UT WOS:000320962400044
ER
PT J
AU Weber, F
Hott, R
Heid, R
Bohnen, KP
Rosenkranz, S
Castellan, JP
Osborn, R
Said, AH
Leu, BM
Reznik, D
AF Weber, F.
Hott, R.
Heid, R.
Bohnen, K. -P.
Rosenkranz, S.
Castellan, J. -P.
Osborn, R.
Said, A. H.
Leu, B. M.
Reznik, D.
TI Optical phonons and the soft mode in 2H-NbSe2
SO PHYSICAL REVIEW B
LA English
DT Article
ID DENSITY-WAVE TRANSITIONS; NEUTRON-SCATTERING; SUPERCONDUCTIVITY;
DICHALCOGENIDES; 2H-TASE2
AB We present an investigation of the lattice dynamics of the charge density wave (CDW) compound 2H-NbSe2. We analyze the precise nature of the wave vector-dependent electron-phonon coupling (EPC) and derive the bare dispersion of the CDW soft phonon mode using inelastic x-ray scattering combined with ab initio calculations. Experimentally, phonon modes along the Gamma - M line, i.e., q=(h, 0,0), with 0 <= h <= 0.5 and the same longitudinal symmetry (Sigma(1)) as the CDW soft mode, were investigated up to 32 meV. In agreement with our calculations, we observe significant EPC in the optic modes at h <= 0.2. We analyze the EPC in the optic, as well as acoustic, mode and show that the q dependences stem from scattering processes between two bands at the Fermi surface that both have a Nb 4d character. Finally, we demonstrate that the soft mode dispersion at T=33 K (=T-CDW) can be well described on the basis of a strongly q-dependent EPC matrix element and an acousticlike bare phonon dispersion in agreement with observations near room temperature.
C1 [Weber, F.; Hott, R.; Heid, R.; Bohnen, K. -P.] Karlsruhe Inst Technol, Inst Solid State Phys, D-76021 Karlsruhe, Germany.
[Rosenkranz, S.; Castellan, J. -P.; Osborn, R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Said, A. H.; Leu, B. M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Reznik, D.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
RP Weber, F (reprint author), Karlsruhe Inst Technol, Inst Solid State Phys, D-76021 Karlsruhe, Germany.
RI Rosenkranz, Stephan/E-4672-2011
OI Rosenkranz, Stephan/0000-0002-5659-0383
FU young investigator group "Competing phases in superconductingmaterials"
of the Helmholtz Society [VH-NG-840]; US Department of Energy (DOE),
Office of Science, Office of Basic Energy Sciences [DE-SC0006939,
DE-AC02-06CH11357]
FX We acknowledge discussions with J. van Wezel. We thank John M. Tranquada
for supplying us with a single crystal of 2H-NbSe2. F.W. was
supported by the young investigator group "Competing phases in
superconductingmaterials" of the Helmholtz Society (VH-NG-840). D.R. was
supported by the US Department of Energy (DOE), Office of Science,
Office of Basic Energy Sciences, under Contract No. DE-SC0006939. Work
at Argonne was supported by US DOE, Office of Science, Office of Basic
Energy Sciences, under Contract No. DE-AC02-06CH11357.
NR 33
TC 13
Z9 13
U1 2
U2 49
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 17
PY 2013
VL 87
IS 24
AR 245111
DI 10.1103/PhysRevB.87.245111
PG 8
WC Physics, Condensed Matter
SC Physics
GA 167CA
UT WOS:000320606700002
ER
PT J
AU Liu, ZQ
Shen, CP
Yuan, CZ
Adachi, I
Aihara, H
Asner, DM
Aulchenko, V
Aushev, T
Aziz, T
Bakich, AM
Bala, A
Belous, K
Bhardwaj, V
Bhuyan, B
Bischofberger, M
Bondar, A
Bonvicini, G
Bozek, A
Bracko, M
Brodzicka, J
Browder, TE
Chang, P
Chekelian, V
Chen, A
Chen, P
Cheon, BG
Chistov, R
Cho, K
Chobanova, V
Choi, SK
Choi, Y
Cinabro, D
Dalseno, J
Danilov, M
Dolezal, Z
Drasal, Z
Drutskoy, A
Dutta, D
Dutta, K
Eidelman, S
Epifanov, D
Farhat, H
Fast, JE
Feindt, M
Ferber, T
Frey, A
Gaur, V
Gabyshev, N
Ganguly, S
Gillard, R
Goh, YM
Golob, B
Haba, J
Hayasaka, K
Hayashii, H
Horii, Y
Hoshi, Y
Hou, WS
Hsiung, YB
Hyun, HJ
Iijima, T
Inami, K
Ishikawa, A
Itoh, R
Iwasaki, Y
Joffe, D
Julius, T
Kah, DH
Kang, JH
Kawasaki, T
Kiesling, C
Kim, HJ
Kim, JB
Kim, JH
Kim, KT
Kim, MJ
Kim, YJ
Kinoshita, K
Klucar, J
Ko, BR
Kodys, P
Korpar, S
Krizan, P
Krokovny, P
Kuhr, T
Kwon, YJ
Lange, JS
Lee, SH
Li, J
Li, Y
Libby, J
Liu, C
Lukin, P
Matvienko, D
Miyabayashi, K
Miyata, H
Mizuk, R
Mohanty, GB
Moll, A
Mussa, R
Nakano, E
Nakao, M
Nakazawa, H
Natkaniec, Z
Nayak, M
Nedelkovska, E
Nisar, NK
Nishida, S
Nitoh, O
Ogawa, S
Okuno, S
Olsen, SL
Onuki, Y
Ostrowicz, W
Oswald, C
Pakhlov, P
Pakhlova, G
Park, H
Park, HK
Pedlar, TK
Pestotnik, R
Petric, M
Piilonen, LE
Ritter, M
Rohrken, M
Rostomyan, A
Sahoo, H
Saito, T
Sakai, Y
Sandilya, S
Santel, D
Sanuki, T
Sato, Y
Savinov, V
Schneider, O
Schnell, G
Schwanda, C
Seidl, R
Semmler, D
Senyo, K
Seon, O
Sevior, ME
Shapkin, M
Shibata, TA
Shiu, JG
Shwartz, B
Sibidanov, A
Simon, F
Smerkol, P
Sohn, YS
Sokolov, A
Solovieva, E
Staric, M
Steder, M
Sumihama, M
Sumiyoshi, T
Tamponi, U
Tanida, K
Tatishvili, G
Teramoto, Y
Trabelsi, K
Tsuboyama, T
Uchida, M
Uehara, S
Uglov, T
Unno, Y
Uno, S
Vahsen, SE
Van Hulse, C
Vanhoefer, P
Varner, G
Varvell, KE
Vorobyev, V
Wagner, MN
Wang, CH
Wang, MZ
Wang, P
Wang, XL
Watanabe, M
Watanabe, Y
Won, E
Yabsley, BD
Yamaoka, J
Yamashita, Y
Yashchenko, S
Yook, Y
Yusa, Y
Zhang, CC
Zhang, ZP
Zhilich, V
Zupanc, A
AF Liu, Z. Q.
Shen, C. P.
Yuan, C. Z.
Adachi, I.
Aihara, H.
Asner, D. M.
Aulchenko, V.
Aushev, T.
Aziz, T.
Bakich, A. M.
Bala, A.
Belous, K.
Bhardwaj, V.
Bhuyan, B.
Bischofberger, M.
Bondar, A.
Bonvicini, G.
Bozek, A.
Bracko, M.
Brodzicka, J.
Browder, T. E.
Chang, P.
Chekelian, V.
Chen, A.
Chen, P.
Cheon, B. G.
Chistov, R.
Cho, K.
Chobanova, V.
Choi, S-K.
Choi, Y.
Cinabro, D.
Dalseno, J.
Danilov, M.
Dolezal, Z.
Drasal, Z.
Drutskoy, A.
Dutta, D.
Dutta, K.
Eidelman, S.
Epifanov, D.
Farhat, H.
Fast, J. E.
Feindt, M.
Ferber, T.
Frey, A.
Gaur, V.
Gabyshev, N.
Ganguly, S.
Gillard, R.
Goh, Y. M.
Golob, B.
Haba, J.
Hayasaka, K.
Hayashii, H.
Horii, Y.
Hoshi, Y.
Hou, W-S.
Hsiung, Y. B.
Hyun, H. J.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwasaki, Y.
Joffe, D.
Julius, T.
Kah, D. H.
Kang, J. H.
Kawasaki, T.
Kiesling, C.
Kim, H. J.
Kim, J. B.
Kim, J. H.
Kim, K. T.
Kim, M. J.
Kim, Y. J.
Kinoshita, K.
Klucar, J.
Ko, B. R.
Kodys, P.
Korpar, S.
Krizan, P.
Krokovny, P.
Kuhr, T.
Kwon, Y-J.
Lange, J. S.
Lee, S-H.
Li, J.
Li, Y.
Libby, J.
Liu, C.
Lukin, P.
Matvienko, D.
Miyabayashi, K.
Miyata, H.
Mizuk, R.
Mohanty, G. B.
Moll, A.
Mussa, R.
Nakano, E.
Nakao, M.
Nakazawa, H.
Natkaniec, Z.
Nayak, M.
Nedelkovska, E.
Nisar, N. K.
Nishida, S.
Nitoh, O.
Ogawa, S.
Okuno, S.
Olsen, S. L.
Onuki, Y.
Ostrowicz, W.
Oswald, C.
Pakhlov, P.
Pakhlova, G.
Park, H.
Park, H. K.
Pedlar, T. K.
Pestotnik, R.
Petric, M.
Piilonen, L. E.
Ritter, M.
Roehrken, M.
Rostomyan, A.
Sahoo, H.
Saito, T.
Sakai, Y.
Sandilya, S.
Santel, D.
Sanuki, T.
Sato, Y.
Savinov, V.
Schneider, O.
Schnell, G.
Schwanda, C.
Seidl, R.
Semmler, D.
Senyo, K.
Seon, O.
Sevior, M. E.
Shapkin, M.
Shibata, T-A.
Shiu, J-G.
Shwartz, B.
Sibidanov, A.
Simon, F.
Smerkol, P.
Sohn, Y-S.
Sokolov, A.
Solovieva, E.
Staric, M.
Steder, M.
Sumihama, M.
Sumiyoshi, T.
Tamponi, U.
Tanida, K.
Tatishvili, G.
Teramoto, Y.
Trabelsi, K.
Tsuboyama, T.
Uchida, M.
Uehara, S.
Uglov, T.
Unno, Y.
Uno, S.
Vahsen, S. E.
Van Hulse, C.
Vanhoefer, P.
Varner, G.
Varvell, K. E.
Vorobyev, V.
Wagner, M. N.
Wang, C. H.
Wang, M-Z.
Wang, P.
Wang, X. L.
Watanabe, M.
Watanabe, Y.
Won, E.
Yabsley, B. D.
Yamaoka, J.
Yamashita, Y.
Yashchenko, S.
Yook, Y.
Yusa, Y.
Zhang, C. C.
Zhang, Z. P.
Zhilich, V.
Zupanc, A.
CA Belle Collaboration
TI Study of e(+)e(-) -> pi(+)pi(-) J/psi and Observation of a Charged
Charmoniumlike State at Belle
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID CROSS-SECTION; ANNIHILATION
AB The cross section for e(+)e(-) -> pi(+)pi(-) J/psi between 3.8 and 5.5 GeV is measured with a 967 fb(-1) data sample collected by the Belle detector at or near the Upsilon(nS) (n = 1, 2, . . . , 5) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of pi(+)pi(-) J/psi production around 4 GeV is observed. This feature can be described by a Breit-Wigner parametrization with properties that are consistent with the Y(4008) state that was previously reported by Belle. In a study of Y(4260) -> pi(+)pi(-) J/psi decays, a structure is observed in the M(pi(+/-) J/psi) mass spectrum with 5.2 sigma significance, with mass M = (3894.5 +/- 6.6 +/- 4.5) MeV/c(2) and width Gamma = (63 +/- 24 +/- 26) MeV/c(2), where the errors are statistical and systematic, respectively. This structure can be interpreted as a new charged charmoniumlike state.
C1 [Schnell, G.; Van Hulse, C.] Univ Basque Country UPV EHU, Bilbao 48080, Spain.
[Oswald, C.] Univ Bonn, D-53115 Bonn, Germany.
[Aulchenko, V.; Bondar, A.; Eidelman, S.; Gabyshev, N.; Krokovny, P.; Lukin, P.; Matvienko, D.; Shwartz, B.; Vorobyev, V.; Zhilich, V.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia.
[Aulchenko, V.; Bondar, A.; Eidelman, S.; Gabyshev, N.; Krokovny, P.; Lukin, P.; Matvienko, D.; Shwartz, B.; Vorobyev, V.; Zhilich, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Dolezal, Z.; Drasal, Z.; Kodys, P.] Charles Univ Prague, Fac Math & Phys, Prague 12116, Czech Republic.
[Kinoshita, K.; Santel, D.] Univ Cincinnati, Cincinnati, OH 45221 USA.
[Ferber, T.; Rostomyan, A.; Steder, M.; Yashchenko, S.] DESY, D-22607 Hamburg, Germany.
[Lange, J. S.; Semmler, D.; Wagner, M. N.] Univ Giessen, D-35392 Giessen, Germany.
[Sumihama, M.] Gifu Univ, Gifu 5011193, Japan.
[Frey, A.] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany.
[Choi, S-K.] Gyeongsang Natl Univ, Chinju 660701, South Korea.
[Cheon, B. G.; Goh, Y. M.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea.
[Browder, T. E.; Sahoo, H.; Vahsen, S. E.; Varner, G.; Yamaoka, J.] Univ Hawaii, Honolulu, HI 96822 USA.
[Adachi, I.; Haba, J.; Itoh, R.; Iwasaki, Y.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Uno, S.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan.
[Schnell, G.] Ikerbasque, Bilbao 48011, Spain.
[Bhuyan, B.; Dutta, D.; Dutta, K.] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India.
[Libby, J.; Nayak, M.] Indian Inst Technol, Madras 600036, Tamil Nadu, India.
[Liu, Z. Q.; Yuan, C. Z.; Wang, P.; Zhang, C. C.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
[Schwanda, C.] Inst High Energy Phys, A-1050 Vienna, Austria.
[Belous, K.; Shapkin, M.; Sokolov, A.] Inst High Energy Phys, Protvino 142281, Russia.
[Mussa, R.; Tamponi, U.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Aushev, T.; Chistov, R.; Danilov, M.; Drutskoy, A.; Mizuk, R.; Pakhlov, P.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Inst Theoret & Expt Phys, Moscow 117218, Russia.
[Bracko, M.; Golob, B.; Klucar, J.; Korpar, S.; Krizan, P.; Pestotnik, R.; Petric, M.; Smerkol, P.; Staric, M.] Jozef Stefan Inst, Ljubljana 1000, Slovenia.
[Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan.
[Feindt, M.; Kuhr, T.; Roehrken, M.; Zupanc, A.] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany.
[Joffe, D.] Kennesaw State Univ, Kennesaw, GA 30144 USA.
[Cho, K.; Kim, J. H.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea.
[Kim, J. B.; Kim, K. T.; Ko, B. R.; Lee, S-H.; Won, E.] Korea Univ, Seoul 136713, South Korea.
[Hyun, H. J.; Kah, D. H.; Kim, H. J.; Kim, M. J.; Park, H.; Park, H. K.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland.
[Golob, B.; Krizan, P.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia.
[Bracko, M.; Korpar, S.] Univ Maribor, SLO-2000 Maribor, Slovenia.
[Chekelian, V.; Chobanova, V.; Dalseno, J.; Kiesling, C.; Moll, A.; Nedelkovska, E.; Ritter, M.; Simon, F.; Vanhoefer, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Julius, T.; Sevior, M. E.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Danilov, M.; Drutskoy, A.; Mizuk, R.; Pakhlov, P.] Moscow Phys Engn Inst, Moscow 115409, Russia.
[Uglov, T.] Moscow Inst Phys & Technol, Moscow 141700, Russia.
[Shen, C. P.; Iijima, T.; Inami, K.; Seon, O.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan.
[Hayasaka, K.; Horii, Y.; Iijima, T.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan.
[Bhardwaj, V.; Bischofberger, M.; Hayashii, H.; Miyabayashi, K.] Nara Womens Univ, Nara 6308506, Japan.
[Chen, A.; Nakazawa, H.] Natl Cent Univ, Chungli 32054, Taiwan.
[Wang, C. H.] Natl United Univ, Miaoli 36003, Taiwan.
[Chang, P.; Chen, P.; Hou, W-S.; Hsiung, Y. B.; Shiu, J-G.; Wang, M-Z.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan.
[Bozek, A.; Brodzicka, J.; Natkaniec, Z.; Ostrowicz, W.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Yamashita, Y.] Nippon Dent Univ, Niigata 9518580, Japan.
[Kawasaki, T.; Miyata, H.; Watanabe, M.; Yusa, Y.] Niigata Univ, Niigata 9502181, Japan.
[Nakano, E.; Teramoto, Y.] Osaka City Univ, Osaka 5588585, Japan.
[Asner, D. M.; Fast, J. E.; Tatishvili, G.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Bala, A.] Panjab Univ, Chandigarh 160014, India.
[Savinov, V.] Univ Pittsburgh, Pittsburgh, PA 15260 USA.
[Seidl, R.] RIKEN BNL Res Ctr, Upton, NY 11973 USA.
[Liu, C.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Li, J.; Olsen, S. L.; Tanida, K.] Seoul Natl Univ, Seoul 151742, South Korea.
[Choi, Y.] Sungkyunkwan Univ, Suwon 440746, South Korea.
[Bakich, A. M.; Sibidanov, A.; Varvell, K. E.; Yabsley, B. D.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Aziz, T.; Gaur, V.; Mohanty, G. B.; Nisar, N. K.; Sandilya, S.] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India.
[Dalseno, J.; Moll, A.; Simon, F.] Tech Univ Munich, Excellence Cluster Universe, D-85748 Garching, Germany.
[Ogawa, S.] Toho Univ, Funabashi, Chiba 2748510, Japan.
[Hoshi, Y.] Tohoku Gakuin Univ, Tagajo, Miyagi 9858537, Japan.
[Ishikawa, A.; Saito, T.; Sanuki, T.; Sato, Y.] Tohoku Univ, Sendai, Miyagi 9808578, Japan.
[Aihara, H.; Epifanov, D.; Onuki, Y.] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan.
[Shibata, T-A.; Uchida, M.] Tokyo Inst Technol, Tokyo 1528550, Japan.
[Sumiyoshi, T.] Tokyo Metropolitan Univ, Tokyo 1920397, Japan.
[Nitoh, O.] Tokyo Univ Agr & Technol, Tokyo 1848588, Japan.
[Tamponi, U.] Univ Turin, I-10124 Turin, Italy.
[Li, Y.; Piilonen, L. E.; Wang, X. L.] Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA.
[Bonvicini, G.; Cinabro, D.; Farhat, H.; Ganguly, S.; Gillard, R.] Wayne State Univ, Detroit, MI 48202 USA.
[Senyo, K.] Yamagata Univ, Yamagata 9908560, Japan.
[Kang, J. H.; Kwon, Y-J.; Sohn, Y-S.; Yook, Y.] Yonsei Univ, Seoul 120749, South Korea.
[Pedlar, T. K.] Luther Coll, Decorah, IA 52101 USA.
RP Liu, ZQ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
RI Aihara, Hiroaki/F-3854-2010; Ishikawa, Akimasa/G-6916-2012; Nitoh,
Osamu/C-3522-2013; Pakhlov, Pavel/K-2158-2013; Uglov,
Timofey/B-2406-2014; Danilov, Mikhail/C-5380-2014; Mizuk,
Roman/B-3751-2014; Krokovny, Pavel/G-4421-2016; Chistov,
Ruslan/B-4893-2014; Drutskoy, Alexey/C-8833-2016; Pakhlova,
Galina/C-5378-2014; Solovieva, Elena/B-2449-2014;
OI Aihara, Hiroaki/0000-0002-1907-5964; Pakhlov, Pavel/0000-0001-7426-4824;
Uglov, Timofey/0000-0002-4944-1830; Danilov,
Mikhail/0000-0001-9227-5164; Krokovny, Pavel/0000-0002-1236-4667;
Chistov, Ruslan/0000-0003-1439-8390; Drutskoy,
Alexey/0000-0003-4524-0422; Pakhlova, Galina/0000-0001-7518-3022;
Solovieva, Elena/0000-0002-5735-4059; Liu, Zhiqing/0000-0002-0290-3022
FU MEXT (Japan); JSPS (Japan); Nagoya's TLPRC (Japan); ARC (Australia);
DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); INFN
(Italy); MEST of KISTI; NRF of KISTI; GSDC of KISTI; WCU (Korea); MNiSW
(Poland); NCN (Poland); MES (Russia); RFAAE (Russia); ARRS (Slovenia);
SNSF (Switzerland); NSC (Taiwan); MOE (Taiwan); DOE (USA); NSF (USA);
MEXT for Science Research on Innovative Areas ("Elucidation of New
Hadrons with a Variety of Flavors''); JSPS KAKENHI Grant [24740158]
FX We thank the KEKB group for excellent operation of the accelerator; the
KEK cryogenics group for efficient solenoid operations; and the KEK
computer group, the NII, and PNNL/EMSL for valuable computing and SINET4
network support. We acknowledge support from MEXT, JSPS, and Nagoya's
TLPRC (Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia);
DST (India); INFN (Italy); MEST, NRF, GSDC of KISTI, and WCU (Korea);
MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); SNSF
(Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA). This work is
supported partly by a Grant-in-Aid from MEXT for Science Research on
Innovative Areas ("Elucidation of New Hadrons with a Variety of
Flavors'') and JSPS KAKENHI Grant No. 24740158.
NR 18
TC 239
Z9 247
U1 5
U2 51
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 17
PY 2013
VL 110
IS 25
AR 252002
DI 10.1103/PhysRevLett.110.252002
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 167EM
UT WOS:000320613800005
PM 23829730
ER
PT J
AU Nagel, U
Fishman, RS
Katuwal, T
Engelkamp, H
Talbayev, D
Yi, HT
Cheong, SW
Room, T
AF Nagel, U.
Fishman, Randy S.
Katuwal, T.
Engelkamp, H.
Talbayev, D.
Yi, Hee Taek
Cheong, S. -W.
Room, T.
TI Terahertz Spectroscopy of Spin Waves in Multiferroic BiFeO3 in High
Magnetic Fields
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ROOM-TEMPERATURE; CERAMICS
AB We have studied the magnetic field dependence of far-infrared active magnetic modes in a single ferroelectric domain BiFeO3 crystal at low temperature. The modes soften close to the critical field of 18.8 T along the [001] (pseudocubic) axis, where the cycloidal structure changes to the homogeneous canted antiferromagnetic state and a new strong mode with linear field dependence appears that persists at least up to 31 T. A microscopic model that includes two Dzyaloshinskii-Moriya interactions and easy-axis anisotropy describes closely both the zero-field spectroscopic modes as well as their splitting and evolution in a magnetic field. The good agreement of theory with experiment suggests that the proposed model provides the foundation for future technological applications of this multiferroic material.
C1 [Nagel, U.; Katuwal, T.; Room, T.] NICPB, EE-12618 Tallinn, Estonia.
[Fishman, Randy S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Engelkamp, H.] Radboud Univ Nijmegen, High Field Magnet Lab, Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands.
[Talbayev, D.] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA.
[Yi, Hee Taek; Cheong, S. -W.] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA.
[Yi, Hee Taek; Cheong, S. -W.] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA.
RP Nagel, U (reprint author), NICPB, Akad Tee 23, EE-12618 Tallinn, Estonia.
EM urmas.nagel@kbfi.ee
RI Yi, Hee Taek/F-6399-2010; Nagel, Urmas/A-6402-2008; Room,
Toomas/A-6412-2008; Talbayev, Diyar/C-5525-2009
OI Nagel, Urmas/0000-0001-5827-9495; Room, Toomas/0000-0002-6165-8290;
Talbayev, Diyar/0000-0003-3537-1656
FU Estonian Ministry of Education and Research Grant [SF0690029s09];
Estonian Science Foundation [ETF8170, ETF8703, ERMOS67]; EuroMagNET
under the EU [228043]; DOE Grant [DE-FG02-07ER46382]; U.S. Department of
Energy, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division
FX We acknowledge conversations with Nobuo Furukawa, Masaaki Matsuda, Shin
Miyahara, Satoshi Okamoto, and Rogerio de Sousa. We acknowledge support
by the Estonian Ministry of Education and Research Grant No.
SF0690029s09, Estonian Science Foundation Grants No. ETF8170, No.
ETF8703, and No. ERMOS67, and by EuroMagNET under the EU Contract No.
228043. Work at Rutgers was supported by DOE Grant No.
DE-FG02-07ER46382. R. S. F acknowledges support by the U.S. Department
of Energy, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division.
NR 37
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 17
PY 2013
VL 110
IS 25
AR 257201
DI 10.1103/PhysRevLett.110.257201
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 167EM
UT WOS:000320613800010
PM 23829754
ER
PT J
AU Zechel, JL
Doerner, SK
Lager, A
Tesar, PJ
Heaney, JD
Nadeau, JH
AF Zechel, Jennifer L.
Doerner, Stephanie K.
Lager, Angela
Tesar, Paul J.
Heaney, Jason D.
Nadeau, Joseph H.
TI Contrasting effects of Deadend1 (Dnd1) gain and loss of function
mutations on allelic inheritance, testicular cancer, and intestinal
polyposis
SO BMC GENETICS
LA English
DT Article
DE Testicular cancer; Allelic segregation; Intestinal neoplasia; DND1
ID GERM-CELL TUMORS; RNA-BINDING PROTEIN; MESSENGER-RNA; EMBRYONIC
VIABILITY; GENE-EXPRESSION; SUSCEPTIBILITY; ZEBRAFISH; MICE; DMRT1; END
AB Background: Certain mutations in the Deadend1 (Dnd1) gene are the most potent modifiers of testicular germ cell tumor (TGCT) susceptibility in mice and rats. In the 129 family of mice, the Dnd1(Ter) mutation significantly increases occurrence of TGCT-affected males. To test the hypothesis that he Dnd1(Ter) allele is a loss-of-function mutation; we characterized the consequences of a genetically-engineered loss-of-function mutation in mice, and compared these results with those for Dnd1(Ter).
Results: We found that intercrossing Dnd1(+/KO) heterozygotes to generate a complete loss-of-function led to absence of Dnd1(KO/KO) homozygotes and significantly reduced numbers of Dnd1(+/KO) heterozygotes. Further crosses showed that Dnd1(Ter) partially rescues loss of Dnd1(KO) mice. We also found that loss of a single copy of Dnd1 in Dnd1(KO/+) heterozygotes did not affect baseline occurrence of TGCT-affected males and that Dnd1(Ter) increased TGCT risk regardless whether the alternative allele was loss-of-function (Dnd1(KO)) or wild-type (Dnd1(+)). Finally, we found that the action of Dnd1(Ter) was not limited to testicular cancer, but also significantly increased polyp number and burden in the Apc(+/Min) model of intestinal polyposis.
Conclusion: These results show that Dnd1 is essential for normal allelic inheritance and that Dnd1(Ter) has a novel combination of functions that significantly increase risk for both testicular and intestinal cancer.
C1 [Zechel, Jennifer L.; Doerner, Stephanie K.; Lager, Angela; Tesar, Paul J.; Heaney, Jason D.; Nadeau, Joseph H.] Case Western Reserve Univ, Sch Med, Dept Genet & Genome Sci, Cleveland, OH 44106 USA.
[Heaney, Jason D.] Baylor Coll Med, Dept Mol & Human Genet, Houston, TX 77030 USA.
[Nadeau, Joseph H.] Pacific Northwest Res Inst, Seattle, WA 98122 USA.
RP Nadeau, JH (reprint author), Case Western Reserve Univ, Sch Med, Dept Genet & Genome Sci, Cleveland, OH 44106 USA.
EM jnadeau@pnri.org
RI Tesar, Paul/C-9848-2014
OI Tesar, Paul/0000-0003-1532-3155
FU NCI [CA75056]
FX We thank Sabine Schaefer for her helpful comments on a draft of this
paper. NCI grant CA75056 supported this work.
NR 68
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U1 1
U2 11
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2156
J9 BMC GENET
JI BMC Genet.
PD JUN 17
PY 2013
VL 14
AR 54
DI 10.1186/1471-2156-14-54
PG 10
WC Genetics & Heredity
SC Genetics & Heredity
GA 170KO
UT WOS:000320849300001
PM 23773267
ER
PT J
AU Ehlers, G
Podlesnyak, AA
Hahn, SE
Fishman, RS
Zaharko, O
Frontzek, M
Kenzelmann, M
Pushkarev, AV
Shiryaev, SV
Barilo, S
AF Ehlers, G.
Podlesnyak, A. A.
Hahn, S. E.
Fishman, R. S.
Zaharko, O.
Frontzek, M.
Kenzelmann, M.
Pushkarev, A. V.
Shiryaev, S. V.
Barilo, S.
TI Incommensurability and spin dynamics in the low-temperature phases of
Ni3V2O8
SO PHYSICAL REVIEW B
LA English
DT Article
ID FERROELECTRICITY; MULTIFERROICS; DIFFRACTION
AB Magnetic order and low-energy spin dynamics in the zero field ground state of Ni3V2O8 are revealed in elastic and inelastic neutron scattering experiments. Neutron diffraction shows that below T = 2.3 K the Ni2+ moments (spin S = 1) order in a cycloid pattern with incommensurate wave vector k(ICM) = (0,1, tau), where tau = 0.4030 +/- 0.0004, which is superimposed on a commensurate antiferromagnetic spin arrangement with k(CM) = (0,0,0). Three spin wave modes are discerned below E similar to 3 meV in inelastic measurements and qualitatively described by a model Hamiltonian that involves near neighbor exchange, local anisotropy, and a small biquadratic coupling between the spine and cross-tie sites. Results from both elastic and inelastic scattering experiments suggest that the two sublattices on spine and cross-tie sites are largely decoupled.
C1 [Ehlers, G.; Podlesnyak, A. A.; Hahn, S. E.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA.
[Fishman, R. S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Zaharko, O.; Frontzek, M.; Kenzelmann, M.] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland.
[Pushkarev, A. V.; Shiryaev, S. V.; Barilo, S.] Inst Solid State & Semicond Phys, Minsk 220072, Byelarus.
RP Ehlers, G (reprint author), Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA.
RI Instrument, CNCS/B-4599-2012; Kenzelmann, Michel/A-8438-2008; Ehlers,
Georg/B-5412-2008; Podlesnyak, Andrey/A-5593-2013; Frontzek,
Matthias/C-5146-2012;
OI Kenzelmann, Michel/0000-0001-7913-4826; Ehlers,
Georg/0000-0003-3513-508X; Podlesnyak, Andrey/0000-0001-9366-6319;
Frontzek, Matthias/0000-0001-8704-8928; Hahn, Steven/0000-0002-2018-7904
FU Laboratory's Directors's fund, Oak Ridge National Laboratory; US
Department of Energy, Office of Basic Energy Sciences, Materials
Sciences and Engineering Division; Scientific User Facilities Division,
Office of Basic Energy Sciences, US Department of Energy
FX We acknowledge the technical and scientific support from the staff at
the SNS and at PSI. This work was partly performed at SINQ, Paul
Scherrer Institute, Villigen, Switzerland. S. E. H. acknowledges support
by the Laboratory's Directors's fund, Oak Ridge National Laboratory. R.
S. F. acknowledges support by the US Department of Energy, Office of
Basic Energy Sciences, Materials Sciences and Engineering Division.
Research at Oak Ridge National Laboratory's Spallation Neutron Source
was supported by the Scientific User Facilities Division, Office of
Basic Energy Sciences, US Department of Energy.
NR 25
TC 8
Z9 8
U1 1
U2 27
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 17
PY 2013
VL 87
IS 21
AR 214418
DI 10.1103/PhysRevB.87.214418
PG 7
WC Physics, Condensed Matter
SC Physics
GA 167BG
UT WOS:000320604600004
ER
PT J
AU Lin, SZ
Reichhardt, C
Batista, CD
Saxena, A
AF Lin, Shi-Zeng
Reichhardt, Charles
Batista, Cristian D.
Saxena, Avadh
TI Particle model for skyrmions in metallic chiral magnets: Dynamics,
pinning, and creep
SO PHYSICAL REVIEW B
LA English
DT Article
ID HIGH-TEMPERATURE SUPERCONDUCTORS; LANDAU-LIFSHITZ EQUATION; VORTICES;
CRYSTALS; LATTICE; MOTION; STATES
AB Recently spin textures called skyrmions have been discovered in certain chiral magnetic materials without spatial inversion symmetry, and they have attracted enormous attention due to their promising application in spintronics since only a low applied current is necessary to drive their motion. When a conduction electron moves around the skyrmion, its spin is fully polarized by the spin texture and acquires a quantized phase; thus, the skyrmion yields an emergent electrodynamics that in turn determines skyrmion motion and gives rise to a finite Hall angle. As topological excitations, skyrmions behave as particles. In this paper we derive the equation of motion for skyrmions as rigid point particles from a microscopic continuum model and obtain the short-range interaction between skyrmions and the interaction between skyrmions and defects. Skyrmions also experience a Magnus force perpendicular to their velocity due to the underlying emergent electromagnetic field. We validate the equation of motion by studying the depinning transition using both the particle and the continuum models. By using the particle description, we explain the recent experimental observations of the rotation of a skyrmion lattice in the presence of a temperature gradient. We also predict quantum and thermal creep motion of skyrmions in the pinning potential.
C1 [Lin, Shi-Zeng; Reichhardt, Charles; Batista, Cristian D.; Saxena, Avadh] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Lin, SZ (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA.
RI Lin, Shi-Zeng/B-2906-2008; Batista, Cristian/J-8008-2016
OI Lin, Shi-Zeng/0000-0002-4368-5244;
FU US Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering; NNSA of the US DOE at LANL
[DE-AC52-06NA25396]
FX We thank Christian Pfleiderer, Shinichiro Seki, A. N. Bogdanov, Ivar
Martin, Yasuyuki Kato, Leonardo Civale, and Boris Maiorov for useful
discussions and Cynthia Reichhardt for a critical reading of the
manuscript. This work was supported by the US Department of Energy,
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering, and was carried out under the auspices of the NNSA of the
US DOE at LANL under Contract No. DE-AC52-06NA25396.
NR 32
TC 56
Z9 56
U1 3
U2 58
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 17
PY 2013
VL 87
IS 21
AR 214419
DI 10.1103/PhysRevB.87.214419
PG 8
WC Physics, Condensed Matter
SC Physics
GA 167BG
UT WOS:000320604600005
ER
PT J
AU Miller, KH
Xu, XS
Berger, H
Craciun, V
Xi, XX
Martin, C
Carr, GL
Tanner, DB
AF Miller, K. H.
Xu, X. S.
Berger, H.
Craciun, V.
Xi, Xiaoxiang
Martin, C.
Carr, G. L.
Tanner, D. B.
TI Infrared phonon modes in multiferroic single-crystal FeTe2O5Br
SO PHYSICAL REVIEW B
LA English
DT Article
AB Reflection and transmission as a function of temperature (7-300 K and 5-300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric function and other optical properties were obtained via Kramers-Kronig analysis and by fits to a Drude-Lortentz model. Analysis of the anisotropic excitation spectra via Drude-Lorentz fitting and lattice dynamical calculations have led to the observation of 43 of the 53 modes predicted along the b axis of the monoclinic cell. The phonon response parallel to the a and c axes are also presented. Assignments to groups (clusters) of phonons have been made and trends within them are discussed in light of our calculated displacement patterns.
C1 [Miller, K. H.; Xi, Xiaoxiang; Martin, C.; Tanner, D. B.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA.
[Xu, X. S.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Berger, H.] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland.
[Craciun, V.] Natl Inst Lasers Plasma & Radiat Phys, Laser Dept, Magurele, Romania.
[Carr, G. L.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Miller, KH (reprint author), Univ Florida, Dept Phys, Gainesville, FL 32611 USA.
RI Xu, Xiaoshan/B-1255-2009
OI Xu, Xiaoshan/0000-0002-4363-392X
FU DOE at UF [DE-FG02-02ER45984]; DOE at the NSLS [DE-AC02-98CH10886]
FX The authors thank M. Pregelj for providing low-temperature
crystallographic information files. This work was supported by DOE
through Grants No. DE-FG02-02ER45984 at UF and No. DE-AC02-98CH10886 at
the NSLS.
NR 28
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U1 1
U2 22
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 17
PY 2013
VL 87
IS 22
AR 224108
DI 10.1103/PhysRevB.87.224108
PG 8
WC Physics, Condensed Matter
SC Physics
GA 167BI
UT WOS:000320604800001
ER
PT J
AU Timusk, T
Carbotte, JP
Homes, CC
Basov, DN
Sharapov, SG
AF Timusk, T.
Carbotte, J. P.
Homes, C. C.
Basov, D. N.
Sharapov, S. G.
TI Three-dimensional Dirac fermions in quasicrystals as seen via optical
conductivity
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRONIC-PROPERTIES; TRANSPORT-PROPERTIES; ALLOYS; BANDS
AB The optical conductivity of quasicrystals is characterized by two features not seen in ordinary metallic systems. There is an absence of the Drude peak and the interband conductivity rises linearly from a very low value up to normal metallic levels over a wide range of frequencies. The absence of a Drude peak has been attributed to a pseudogap at the Fermi surface but a detailed explanation of the linear behavior has not been found. Here we show that the linear conductivity, which seems to be universal in all Al based icosahedral quasicrystal families, as well as their periodic approximants, follows from a simple model that assumes that the entire Fermi surface is gapped except at a finite set of Dirac points. There is no evidence of a semiconducting gap in any of the materials suggesting that the Dirac spectrum is massless, protected by topology leading to a Weyl semimetal. This model gives rise to a linear conductivity with only one parameter, the Fermi velocity. This picture suggests that decagonal quasicrystals should, like graphene, have a frequency independent conductivity, without a Drude peak. This is in accord with the experimental data as well.
C1 [Timusk, T.; Carbotte, J. P.] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
[Timusk, T.; Carbotte, J. P.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada.
[Homes, C. C.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
[Sharapov, S. G.] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, UA-03680 Kiev, Ukraine.
[Sharapov, S. G.] Taras Shevchenko Natl Kiev Univ, Dept Phys, UA-03680 Kiev, Ukraine.
RP Timusk, T (reprint author), McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
RI Sharapov, Sergei/A-3526-2008
OI Sharapov, Sergei/0000-0002-8871-0917
FU Canadian Institute for Advanced Research; Natural Science and
Engineering Research Council of Canada; US Department of Energy, Basic
Energy Sciences; European FP7 program [SIMTECH 246937]; [STCU 5716-2]
FX The authors would like to thank Dimitri Abanin, Anton Burkov, Sung-Sik
Lee, Marcel Franz, Xiao-Gang Wen, and Elizabeth Nicol for helpful
discussions. This work was supported in part by the Canadian Institute
for Advanced Research and the Natural Science and Engineering Research
Council of Canada. The work at University of California, San Diego was
supported by US Department of Energy, Basic Energy Sciences. The work of
S.G.Sh. was supported by the European FP7 program, Grant No. SIMTECH
246937, a collaborative grant from the Swedish Institute, and by Grant
STCU No. 5716-2 Development of Graphene Technologies and Investigation
of Graphene-based Nanostructures for Nanoelectronics and
Optoelectronics.
NR 29
TC 27
Z9 27
U1 3
U2 45
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 17
PY 2013
VL 87
IS 23
AR UNSP 235121
DI 10.1103/PhysRevB.87.235121
PG 6
WC Physics, Condensed Matter
SC Physics
GA 167BP
UT WOS:000320605600002
ER
PT J
AU Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Alford, J
Anson, CD
Aparin, A
Arkhipkin, D
Aschenauer, E
Averichev, GS
Balewski, J
Banerjee, A
Barnovska, Z
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bhattarai
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bruna, E
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Cai, XZ
Caines, H
Sanchez, MCD
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chung, P
Chwastowski, J
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
de Souza, RD
Dhamija, S
di Ruzza, B
Didenko, L
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Flores, E
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Gliske, S
Grebenyuk, OG
Grosnick, D
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jena, C
Judd, EG
Kabana, S
Kang, K
Kapitan, J
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Klein, SR
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Lamont, MAC
Landgraf, JM
Landry, KD
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lima, LM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Longacre, RS
Lu, Y
Luo, X
Luszczak, A
Ma, GL
Ma, YG
Don, DMMDM
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Mioduszewski, S
Mitrovski, MK
Mohammed, Y
Mohanty, B
Mondal, MM
Munhoz, MG
Mustafa, MK
Naglis, M
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nogach, LV
Novak, J
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Oliveira, RAN
Olson, D
Pachr, M
Page, BS
Pal, SK
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Peryt, W
Pile, P
Planinic, M
Pluta, J
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Ramachandran, S
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Riley, CK
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Ross, JF
Ruan, L
Rusnak, J
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, B
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shao, M
Sharma, B
Sharma, M
Shi, SS
Shou, QY
Sichtermann, EP
Singaraju, RN
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
deSouza, UG
Spinka, HM
Srivastava, B
Stanislaus, TDS
Steadman, SG
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thomas, JH
Tian, J
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yang, Y
Yepes, P
Yi, L
Yip, K
Yoo, IK
Zawisza, M
Zbroszczyk, H
Zhang, JB
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Anson, C. D.
Aparin, A.
Arkhipkin, D.
Aschenauer, E.
Averichev, G. S.
Balewski, J.
Banerjee, A.
Barnovska, Z.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bhattarai
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chung, P.
Chwastowski, J.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derradi de Souza, R.
Dhamija, S.
di Ruzza, B.
Didenko, L.
Ding, F.
Dion, A.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Elnimr, M.
Engelage, J.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Flores, E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Gliske, S.
Grebenyuk, O. G.
Grosnick, D.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L-X.
Harris, J. W.
Hays-Wehle, J. P.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jena, C.
Judd, E. G.
Kabana, S.
Kang, K.
Kapitan, J.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lima, L. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Lu, Y.
Luo, X.
Luszczak, A.
Ma, G. L.
Ma, Y. G.
Don, D. M. M. D. Madagodagettige
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Mioduszewski, S.
Mitrovski, M. K.
Mohammed, Y.
Mohanty, B.
Mondal, M. M.
Munhoz, M. G.
Mustafa, M. K.
Naglis, M.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nogach, L. V.
Novak, J.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Oliveira, R. A. N.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peryt, W.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Ruan, L.
Rusnak, J.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, B.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shao, M.
Sharma, B.
Sharma, M.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Singaraju, R. N.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
deSouza, U. G.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Steadman, S. G.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szanto de Toledo, A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Zawisza, M.
Zbroszczyk, H.
Zhang, J. B.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
CA STAR Collaboration
TI System-size dependence of transverse momentum correlations at root
s(NN)=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
SO PHYSICAL REVIEW C
LA English
DT Article
ID BY-EVENT FLUCTUATIONS; PLUS PB COLLISIONS; QUARK-GLUON PLASMA; AU-AU
COLLISIONS; MEAN-P(T) FLUCTUATIONS; NUCLEAR COLLISIONS; SIGNATURES;
DYNAMICS; MODEL; RATIO
AB We present a study of the average transverse momentum (p(t)) fluctuations and p(t) correlations for charged particles produced in Cu + Cu collisions at midrapidity for root s(NN) = 62.4 and 200 GeV. These results are compared with those published for Au + Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p(t) correlation results have been studied as functions of the collision centralities, the ranges in p(t), the pseudorapidity eta, and the azimuthal angle phi. The square root of the measured p(t) correlations when scaled by mean p(t) is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, Krakow, Poland.
[Gliske, S.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Aschenauer, E.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dion, A.; Dunlop, J. C.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Mitrovski, M. K.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Flores, E.; Haag, B.; Kesich, A.; Romero, J. L.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA.
[Dunkelberger, L. E.; Huang, H. Z.; Igo, G.; Landry, K. D.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.; Zhao, F.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Chen, J. Y.; Chen, L.; Huck, P.; Ke, H. W.; Li, Z. M.; Liu, F.; Luo, X.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China.
[Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Pandit, Y.; Pei, H.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Chwastowski, J.; Luszczak, A.] Cracow Univ Technol, Krakow, Poland.
[Cherney, M.; Don, D. M. M. D. Madagodagettige; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Hajkova, O.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Barnovska, Z.; Bielcikova, J.; Chung, P.; Kapitan, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic.
[Kollegger, T.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, D-60054 Frankfurt, Germany.
[Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Dhamija, S.; Jacobs, W. W.; Page, B. S.; Skoby, M. J.; Vossen, A.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Bordyuzhin, I. G.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Gupta, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
[Agakishiev, G.; Aparin, A.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia.
[Alford, J.; Bouchet, J.; Keane, D.; Kumar, L.; Margetis, S.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA.
[Adkins, J. K.; Fatemi, R.; Fersch, R. G.; Korsch, W.; Ramachandran, S.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Eun, L.; Grebenyuk, O. G.; Kiryluk, J.; Kisel, I.; Klein, S. R.; Kulakov, I.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Porter, J.; Poskanzer, A. M.; Powell, C. B.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Wieman, H.; Xu, N.; Zyzak, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Redwine, R.; Seele, J.; Steadman, S. G.; Stevens, J. R.; van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Novak, J.; Tarnowsky, T.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Jena, C.; Mohanty, B.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Pawlik, B.; Turnau, J.] Inst Nucl Phys PAN, Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Cendejas, R.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Nogach, L. V.] Inst High Energy Phys, Protvino, Russia.
[Garand, D.; Hirsch, A.; Kikola, D. P.; Konzer, J.; Mustafa, M. K.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.; Yi, L.] Purdue Univ, W Lafayette, IN 47907 USA.
[Oh, K.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Lima, L. M.; Munhoz, M. G.; Oliveira, R. A. N.; deSouza, U. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Cui, X.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L-X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shou, Q. Y.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Surrow, B.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mohammed, Y.; Mondal, M. M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Bhattarai; Codrington, M. J. M.; Leyva, A. Davila; Hoffmann, G. W.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Bellwied, R.; De Silva, L. C.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Drachenberg, J. L.; Gibson, A.; Grosnick, D.; Koetke, D. D.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Nasim, Md.; Nayak, T. K.; Pal, S. K.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Sandacz, A.; Trzeciak, B. A.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Elnimr, M.; LaPointe, S.; Pruneau, C.; Putschke, J.; Sharma, M.; Tarini, L. H.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Horvat, S.; Majka, R.; Ohlson, A.; Riley, C. K.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Adamczyk, L (reprint author), AGH Univ Sci & Technol, Krakow, Poland.
RI Aparecido Negrao de Oliveira, Renato/G-9133-2015; Bruna,
Elena/C-4939-2014; Chaloupka, Petr/E-5965-2012; Huang,
Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide,
Alexandre/L-6239-2016; Xin, Kefeng/O-9195-2016; Yi, Li/Q-1705-2016;
Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013; Strikhanov, Mikhail/P-7393-2014; Lednicky,
Richard/K-4164-2013; Xu, Wenqin/H-7553-2014; XIAO, Zhigang/C-3788-2015;
Takahashi, Jun/B-2946-2012; Fazio, Salvatore /G-5156-2010; Yang,
Yanyun/B-9485-2014; Rusnak, Jan/G-8462-2014; Bielcikova,
Jana/G-9342-2014; Alekseev, Igor/J-8070-2014; Sumbera,
Michal/O-7497-2014
OI Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210;
Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide,
Alexandre/0000-0003-2847-6556; Xin, Kefeng/0000-0003-4853-9219; Yi,
Li/0000-0002-7512-2657; Okorokov, Vitaly/0000-0002-7162-5345; Ma,
Yu-Gang/0000-0002-0233-9900; Mohanty, Bedangadas/0000-0001-9610-2914;
Bhasin, Anju/0000-0002-3687-8179; Pandit, Yadav/0000-0003-2809-7943;
Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991;
Takahashi, Jun/0000-0002-4091-1779; Yang, Yanyun/0000-0002-5982-1706;
Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323
FU Offices of NP and HEP within the US DOE Office of Science; US NSF; Sloan
Foundation; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Education and
Science of the Russian Federation; NNSFC of China; CAS of China; MoST of
China; MoE of China; GA of the Czech Republic; MSMT of the Czech
Republic; FOM of the Netherlands; NWO of the Netherlands; DAE of India;
DST of India; CSIR of India; Polish Ministry of Science and Higher
Education; National Research Foundation [NRF-2012004024]; Ministry of
Science, Education and Sports of the Republic of Croatia; RosAtom of
Russia; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the Offices of NP and HEP
within the US DOE Office of Science, the US NSF, the Sloan Foundation,
CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Education and Science of
the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT
of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and
CSIR of India, the Polish Ministry of Science and Higher Education, the
National Research Foundation (NRF-2012004024), the Ministry of Science,
Education and Sports of the Republic of Croatia, and RosAtom of Russia.
NR 58
TC 2
Z9 2
U1 0
U2 44
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 17
PY 2013
VL 87
IS 6
AR 064902
DI 10.1103/PhysRevC.87.064902
PG 11
WC Physics, Nuclear
SC Physics
GA 167CR
UT WOS:000320608700004
ER
PT J
AU Hinohara, N
Kortelainen, M
Nazarewicz, W
AF Hinohara, Nobuo
Kortelainen, Markus
Nazarewicz, Witold
TI Low-energy collective modes of deformed superfluid nuclei within the
finite-amplitude method
SO PHYSICAL REVIEW C
LA English
DT Article
ID HARMONIC-OSCILLATOR BASIS; SKYRME; PARAMETRIZATION; PROGRAM
AB Background: The major challenge for nuclear theory is to describe and predict global properties and collective modes of atomic nuclei. Of particular interest is the response of the nucleus to a time-dependent external field that impacts the low-energy multipole and beta-decay strength, as well as individual nuclear excitations.
Purpose: We propose a method to compute low-lying collective modes in deformed nuclei within the finite-amplitude method (FAM) based on the quasiparticle random-phase approximation (QRPA). By using the analytic property of the response function, we find the QRPA amplitudes by computing the residua of the FAM amplitudes by means of a contour integration around the QRPA poles in a complex frequency plane.
Methods: We use superfluid nuclear density functional theory with Skyrme energy density functionals, the FAM-QRPA approach, and the conventional matrix formulation of the QRPA.
Results: We demonstrate that the complex-energy FAM-QRPA method reproduces low-lying collective states obtained within the conventional matrix formulation of the QRPA theory. Illustrative calculations are performed for the isoscalar monopole strength in deformed Mg-24 and for low-lying K = 0 quadrupole vibrational modes of deformed Yb and Er isotopes.
Conclusions: The proposed FAM-QRPA approach, in addition to providing a quick estimate of various strength functions, allows one to efficiently calculate the individual QRPA amplitudes of the low-lying collective modes in spherical and deformed nuclei throughout the entire nuclear landscape, in particular shape-vibrational and pairing-vibrational modes and beta-decay rates. It can also be employed in microscopic approaches to large-amplitude nuclear collective motion based on the adiabatic self-consistent collective coordinate method.
C1 [Hinohara, Nobuo] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
[Hinohara, Nobuo; Kortelainen, Markus; Nazarewicz, Witold] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Hinohara, Nobuo] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
[Kortelainen, Markus] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland.
[Nazarewicz, Witold] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Nazarewicz, Witold] Univ Warsaw, Inst Theoret Phys, PL-00861 Warsaw, Poland.
RP Hinohara, N (reprint author), Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
OI Hinohara, Nobuo/0000-0001-9562-0189
FU US Department of Energy [DEFG02-96ER40963, DE-SC0008499]; JUSTIPEN
(Japan-US Theory Institute for Physics with Exotic Nuclei)
[DEFG02-06ER41407]; Academy of Finland under the Centre of Excellence
Programme; FIDIPRO programme
FX Useful discussions with J. Dobaczewski and T. Nakatsukasa are gratefully
acknowledged. This work was supported by the US Department of Energy
under Contracts No. DEFG02-96ER40963 (University of Tennessee) and No.
DE-SC0008499 (NUCLEI SciDAC Collaboration), by JUSTIPEN (Japan-US Theory
Institute for Physics with Exotic Nuclei) under Grant No.
DEFG02-06ER41407 (University of Tennessee), by the Academy of Finland
under the Centre of Excellence Programme 2012-2017 (Nuclear and
Accelerator Based Physics Programme at JYFL), and the FIDIPRO programme.
An award of computer time was provided by the Innovative and Novel
Computational Impact on Theory and Experiment INCITE) program.
NR 38
TC 19
Z9 19
U1 1
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 17
PY 2013
VL 87
IS 6
AR 064309
DI 10.1103/PhysRevC.87.064309
PG 8
WC Physics, Nuclear
SC Physics
GA 167CR
UT WOS:000320608700002
ER
PT J
AU Aad, G
Abajyan, T
Abbott, B
Abdallah, J
Khalek, SA
Abdelalim, AA
Abdinov, O
Aben, R
Abi, B
Abolins, M
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Adamczyk, L
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Aefsky, S
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CA ATLAS Collaboration
TI Search for resonant diboson production in the WW/WZ -> lvjj decay
channels with the ATLAS detector at root s=7 TeV
SO PHYSICAL REVIEW D
LA English
DT Article
ID FINAL-STATE; COLLISIONS; BOSONS
AB A search for resonant diboson production using a data sample corresponding to 4.7 fb(-1) of integrated luminosity collected by the ATLAS experiment at the Large Hadron Collider in pp collisions at root s = 7 TeV is presented. The search for a narrow resonance in the WW or WZ mass distribution is conducted in a final state with an electron or a muon, missing transverse momentum, and at least two jets. No significant excess is observed and limits are set using three benchmark models: WW resonance masses below 940 and 710 GeV are excluded at 95% confidence level for spin-2 Randall-Sundrum and bulk Randall-Sundrum gravitons, respectively; WZ resonance masses below 950 GeV are excluded at 95% confidence level for a spin-1 extended gauge model W' boson.
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[Abdallah, J.; Bosman, M.; Caminal Armadans, R.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Espinal Curull, X.; Francavilla, P.; Giangiobbe, V.; Gonzalez Parra, G.; Grinstein, S.; Helsens, C.; Juste Rozas, A.; Korolkov, I.; Le Menedeu, E.; Martinez, M.; Mir, L. M.; Montejo Berlingen, J.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Riu, I.; Rossetti, V.; Rubbo, F.; Succurro, A.; Tsiskaridze, S.; Vorwerk, V.] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain.
[Abdallah, J.; Bosman, M.; Caminal Armadans, R.; Casado, M. P.; Cavalli-Sforza, M.; Conidi, M. C.; Demirkoz, B.; Espinal Curull, X.; Francavilla, P.; Giangiobbe, V.; Gonzalez Parra, G.; Grinstein, S.; Helsens, C.; Juste Rozas, A.; Korolkov, I.; Le Menedeu, E.; Martinez, M.; Mir, L. M.; Montejo Berlingen, J.; Nadal, J.; Osuna, C.; Pacheco Pages, A.; Padilla Aranda, C.; Riu, I.; Rossetti, V.; Rubbo, F.; Succurro, A.; Tsiskaridze, S.; Vorwerk, V.] ICREA, Barcelona, Spain.
[Borjanovic, I.; Krstic, J.; Popovic, D. S.; Sijacki, Dj.; Simic, Lj] Univ Belgrade, Inst Phys, Belgrade, Serbia.
[Bozovic-Jelisavcic, I.; Cirkovic, P.; Jovin, T.; Mamuzic, J.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia.
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[Bach, A. M.; Galtieri, A. Barbaro; Barnett, R. M.; Beringer, J.; Biesiada, J.; Calafiura, P.; Caminada, L. M.; Ciocio, A.; Clarke, R. N.; Cooke, M.; Copic, K.; Dube, S.; Einsweiler, K.; Gaponenko, A.; Garcia-Sciveres, M.; Gilchriese, M.; Haber, C.; Hance, M.; Heinemann, B.; Hinchliffe, I.; Hsu, S-C.; Hurwitz, M.; Lavrijsen, W.; Leggett, C.; Loscutoff, P.; Madaras, R. J.; Ovcharova, A.; Griso, S. Pagan; Pranko, A.; Quarrie, D. R.; Shapiro, M.; Skinnari, L. A.; Tatarkhanov, M.; Tibbetts, M. J.; Tsulaia, V.; Vahsen, S.; Varouchas, D.; Virzi, J.; Yao, Y.; Zenz, S.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
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[Agustoni, M.; Ancu, L. S.; Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Marti, L. F.; Pretzl, K.; Schneider, B.; Topfel, C.; Weber, M. S.] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.
[Agustoni, M.; Ancu, L. S.; Battaglia, A.; Beck, H. P.; Borer, C.; Ereditato, A.; Martin, T. Fonseca; Gallo, V.; Haug, S.; Kabana, S.; Kruker, T.; Marti, L. F.; Pretzl, K.; Schneider, B.; Topfel, C.; Weber, M. S.] Univ Bern, High Energy Phys Lab, Bern, Switzerland.
[Allbrooke, B. M. M.; Bansil, H. S.; Bracinik, J.; Charlton, D. G.; Chisholm, A. S.; Collins, N. J.; Curtis, C. J.; Hadley, D. R.; Hawkes, C. M.; Head, S. J.; Hillier, S. J.; Mahout, G.; Martin, T. A.; Mclaughlan, T.; Newman, P. R.; Nikolopoulos, K.; Palmer, J. D.; Slater, M.; Thomas, J. P.; Thompson, P. D.; Watkins, P. M.; Watson, A. T.; Watson, M. F.; Wilson, J. A.] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England.
[Akdogan, T.; Arik, E.; Arik, M.; Istin, S.; Ozcan, V. E.; Rador, T.] Bogazici Univ, Dept Phys, Istanbul, Turkey.
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[Beddall, A. J.; Beddall, A.; Bingul, A.] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey.
Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey.
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[Bertin, A.; Bindi, M.; Caforio, D.; De Castro, S.; Di Sipio, R.; Fabbri, L.; Franchini, M.; Grafstroem, P.; Massa, I.; Mengarelli, A.; Monzani, S.; Piccinini, M.; Romano, M.; Sbrizzi, A.; Semprini-Cesari, N.; Valentinetti, S.; Villa, M.; Zoccoli, A.] Univ Bologna, Dipartimento Fis, Bologna, Italy.
[Abajyan, T.; Arutinov, D.; Backhaus, M.; Barbero, M.; Bechtle, P.; Brock, I.; Cristinziani, M.; Davey, W.; Desch, K.; Dingfelder, J.; Gaycken, G.; Geich-Gimbel, Ch.; Glatzer, J.; Gonella, L.; Haefner, P.; Havranek, M.; Hellmich, D.; Hillert, S.; Huegging, F.; Karagounis, M.; Khoriauli, G.; Koevesarki, P.; Kostyukhin, V. V.; Kraus, J. K.; Kroseberg, J.; Krueger, H.; Lapoire, C.; Lehmacher, M.; Leyko, A. M.; Limbach, C.; Loddenkoetter, T.; Mazur, M.; Moeser, N.; Mueller, K.; Nanava, G.; Nattermann, T.; Nuncio-Quiroz, A-E.; Pohl, D.; Psoroulas, S.; Schaepe, S.; Schmieden, K.; Schmitz, M.; Schultens, M. J.; Schwindt, T.; Stillings, J. A.; Therhaag, J.; Tsung, J-W.; Uchida, K.; Uhlenbrock, M.; Urquijo, P.; Vogel, A.; von Toerne, E.; Wang, T.; Wermes, N.; Wienemann, P.; Wiik-Fuchs, L. A. M.; Zendler, C.; Zimmermann, R.; Zimmermann, S.] Univ Bonn, Inst Phys, Bonn, Germany.
[Ahlen, S. P.; Black, K. M.; Butler, J. M.; Dell'Asta, L.; Helary, L.; Shank, J. T.; Yan, Z.; Youssef, S.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
[Aefsky, S.; Amelung, C.; Bensinger, J. R.; Bianchini, L.; Blocker, C.; Coffey, L.; Daya-Ishmukhametova, R. K.; Gozpinar, S.; Pomeroy, D.; Sciolla, G.] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA.
[Caloba, L. P.; Maidantchik, C.; Marroquim, F.; Nepomuceno, A. A.; Perantoni, M.; Seixas, J. M.] Univ Fed Rio de Janeiro COPPE EE IF, Rio De Janeiro, Brazil.
[Cerqueira, A. S.; Manhaes de Andrade Filho, L.] Univ Fed Juiz de Fora, Juiz De Fora, Brazil.
[do Vale, M. A. B.] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil.
[Donadelli, M.; Leite, M. A. L.] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil.
[Adams, D. L.; Assamagan, K.; Baker, M. D.; Begel, M.; Bernius, C.; Chen, H.; Chernyatin, V.; Debbe, R.; Dhullipudi, R.; Ernst, M.; Gadfort, T.; Gibbard, B.; Gordon, H. A.; Greenwood, Z. D.; Klimentov, A.; Lanni, F.; Lissauer, D.; Lynn, D.; Ma, H.; Maeno, T.; Majewski, S.; Metcalfe, J.; Nevski, P.; Okawa, H.; Damazio, D. Oliveira; Paige, F.; Panitkin, S.; Park, W.; Pleier, M-A.; Poblaguev, A.; Polychronakos, V.; Pravahan, R.; Protopopescu, S.; Purohit, M.; Radeka, V.; Rahm, D.; Rajagopalan, S.; Redlinger, G.; Sawyer, L.; Sircar, A.; Snyder, S.; Steinberg, P.; Stumer, I.; Subramaniam, R.; Takai, H.; Tamsett, M. C.; Triplett, N.; Undrus, A.; Wenaus, T.; Ye, S.; Yu, D.; Zaytsev, A.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Alexa, C.; Badescu, E.; Boldea, V.; Buda, S. I.; Caprini, I.; Chitan, A.; Ciubancan, M.; Constantinescu, S.; Cuciuc, C-M.; Dinut, F.; Dita, P.; Dita, S.; Olariu, A.; Pantea, D.; Popeneciu, G. A.; Rotaru, M.; Stoicea, G.; Tudorache, A.; Tudorache, V.] Natl Inst Phys & Nucl Engn, Bucharest, Romania.
[Darlea, G. L.] Univ Politehn Bucuresti, Bucharest, Romania.
West Univ Timisoara, Timisoara, Romania.
[Gonzalez Silva, M. L.; Otero y Garzon, G.; Piegaia, R.; Romeo, G.] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina.
[Ask, S.; Barlow, N.; Batley, J. R.; Brochu, F. M.; Buttinger, W.; Carter, J. R.; Chapman, J. D.; Cowden, C.; French, S. T.; Frost, J. A.; Hill, J. C.; Kaneti, S.; Khoo, T. J.; Lester, C. G.; Moeller, V.; Parker, M. A.; Robinson, D.; Sandoval, T.; Thomson, M.; Ward, C. P.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Gillberg, D.; Koffas, T.; Lacey, J.; Liu, C.; Marchand, J. F.; McCarthy, T. G.; Oakham, F. G.; Randrianarivony, K.; Tarrade, F.; Ueno, R.; Vincter, M. G.; Whalen, K.] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada.
[Aleksa, M.; Anastopoulos, C.; Anghinolfi, F.; Avolio, G.; Baak, M. A.; Bachas, K.; Banfi, D.; Battistin, M.; Bellomo, M.; Beltramello, O.; Berge, D.; Bianchi, R. M.; Blanchot, G.; Bogaerts, J. A.; Boyd, J.; Bremer, J.; Burckhart, H.; Byszewski, M.; Campana, S.; Garrido, M. D. M. Capeans; Carli, T.; Catinaccio, A.; Catmore, J. R.; Cattai, A.; Cerri, A.; Barajas, C. A. Chavez; Childers, J. T.; Chromek-Burckhart, D.; Cote, D.; Danielsson, H. O.; Dell'Acqua, A.; Di Girolamo, A.; Di Girolamo, B.; Di Micco, B.; Dittus, F.; Dobos, D.; Dobson, E.; Dopke, J.; Dudarev, A.; Duehrssen, M.; Dydak, F.; Ellis, N.; Elsing, M.; Fabre, C.; Farthouat, P.; Fassnacht, P.; Francis, D.; Franz, S.; Froeschl, R.; Froidevaux, D.; Torregrosa, E. Fullana; Gabaldon, C.; Garelli, N.; Garonne, V.; Gianotti, F.; Gibson, S. M.; Godlewski, J.; Goossens, L.; Gorini, B.; Gray, H. M.; Haas, S.; Hahn, F.; Haider, S.; Hauschild, M.; Hawkings, R. J.; Heller, M.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Huhtinen, M.; Inigo-Golfin, J.; Jaekel, M. R.; Jansen, H.; Jenni, P.; Joram, C.; Jungst, R. M.; Kaneda, M.; Kaplon, J.; Kerschen, N.; Klioutchnikova, T.; Koeneke, K.; Lamanna, M.; Lantzsch, K.; Lassnig, M.; Miotto, G. Lehmann; Lenzi, B.; Lichard, P.; Malaescu, B.; Malyukov, S.; Mapelli, A.; Mapelli, L.; Marshall, Z.; Martin, B.; Messina, A.; Meyer, T. C.; Michal, S.; Molfetas, A.; Morley, A. K.; Mornacchi, G.; Muenstermann, D.; Nairz, A. M.; Nakahama, Y.; Negri, G.; Nessi, M.; Nicquevert, B.; Nordberg, M.; Ohm, C. C.; Palestini, S.; Pauly, T.; Pernegger, H.; Peters, K.; Petersen, B. A.; Petersen, J.; Piacquadio, G.; Pommes, K.; Poppleton, A.; Bueso, X. Portell; Poulard, G.; Prasad, S.; Raymond, M.; Rembser, C.; Dos Santos, D. Roda; Roe, S.; Salek, D.; Salzburger, A.; Savu, D. O.; Schlenker, S.; Schott, M.; Sfyrla, A.; Spigo, G.; Spiwoks, R.; Stewart, G. A.; Teischinger, F. A.; Ten Kate, H.; Torchiani, I.; Tremblet, L.; Tricoli, A.; Tsarouchas, C.; Unal, G.; van der Ster, D.; van Eldik, N.; Vandelli, W.; Veness, R.; Vinek, E.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Winklmeier, F.; Wotschack, J.; Zajacova, Z.; Zwalinski, L.] CERN, Geneva, Switzerland.
[Anderson, K. J.; Boveia, A.; Canelli, F.; Cheng, Y.; Choudalakis, G.; Fiascaris, M.; Gardner, R. W.; Jen-La Plante, I.; Kapliy, A.; Li, H. L.; Melachrinos, C.; Merritt, F. S.; Meyer, C.; Miller, D. W.; Okumura, Y.; Onyisi, P. U. E.; Oreglia, M. J.; Penning, B.; Pilcher, J. E.; Shochet, M. J.; Tompkins, L.; Tuggle, J. M.; Vukotic, I.; Webster, J. S.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Diaz, M. A.; Olivares Pino, S. A.; Quinonez, F.] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile.
[Brooks, W. K.; Carquin, E.; Kuleshov, S.; Pezoa, R.; Prokoshin, F.] Univ Tecn Fed Sanat Maria, Dept Fis, Valparaiso, Chile.
[Bai, Y.; Jin, S.; Lu, F.; Ouyang, Q.; Ruan, X.; Shan, L. Y.; Yao, L.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
[Han, L.; Jiang, Y.; Li, S.; Liu, M.; Liu, Y.; Peng, H.; Wang, H.; Wu, Y.; Xu, C.; Zhang, D.; Zhao, Z.; Zhu, Y.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China.
[Chen, S.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
[Feng, C.; Ge, P.; Meng, Z.; Zhang, X.; Zhu, C. G.] Shandong Univ, Sch Phys, Shandong, Peoples R China.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Febbraro, R.; Ghodbane, N.; Gris, Ph; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Vazeille, F.] Clermont Univ, Phys Corpusculaire Lab, Clermont Ferrand, France.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Febbraro, R.; Ghodbane, N.; Gris, Ph; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Vazeille, F.] Univ Clermont Ferrand, Clermont Ferrand, France.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Febbraro, R.; Ghodbane, N.; Gris, Ph; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Vazeille, F.] CNRS IN2P3, Clermont Ferrand, France.
[Altheimer, A.; Andeen, T.; Angerami, A.; Brooijmans, G.; Chen, Y.; Dodd, J.; Grau, N.; Guo, J.; Hu, D.; Hughes, E. W.; Nikiforou, N.; Parsons, J. A.; Penson, A.; Perez, K.; Reale, V. Perez; Scherzer, M. I.; Spousta, M.; Thompson, E. N.; Tian, F.; Tuts, P. M.; Urbaniec, D.; Williams, E.; Willis, W.; Wulf, E.] Columbia Univ, Nevis Lab, Irvington, NY USA.
[Alonso, A.; Boelaert, N.; Dam, M.; Gregersen, K.; Hansen, J. R.; Hansen, J. B.; Hansen, J. D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Klinkby, E. B.; Loevschall-Jensen, A. E.; Lundquist, J.; Mackeprang, R.; Mehlhase, S.; Petersen, T. C.; Simonyan, M.; Thomsen, L. A.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Lavorini, V.; Mastroberardino, A.; Morello, G.; Policicchio, A.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] INFN Grp Collegato Cosenza, Milan, Italy.
[Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Lavorini, V.; Mastroberardino, A.; Morello, G.; Policicchio, A.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, Italy.
[Adamczyk, L.; Bold, T.; Dabrowski, W.; Dwuznik, M.; Grabowska-Bold, I.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Przybycien, M.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Banas, E.; Blocki, J.; de Renstrom, P. A. Bruckman; Derendarz, D.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Korcyl, K.; Malecki, Pa; Malecki, P.; Olszewski, A.; Olszowska, J.; Stanecka, E.; Staszewski, R.; Trzebinski, M.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Wozniak, K. W.; Zabinski, B.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Dao, V.; Yagci, K. Dindar; Firan, A.; Hoffman, J.; Joffe, D.; Kama, S.; Kehoe, R.; Randle-Conde, A. S.; Rios, R. R.; Sekula, S. J.; Stroynowski, R.; Ye, J.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Ahsan, M.; Izen, J. M.; Lou, X.; Reeves, K.; Wong, W. C.] Univ Texas Dallas, Dept Phys, Richardson, TX 75230 USA.
[Kuutmann, E. Bergeaas; Bloch, I.; Dassoulas, J. A.; Dietrich, J.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Friedrich, C.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K-J.; Gregor, I. M.; Hiller, K. H.; Huettmann, A.; Belenguer, M. Jimenez; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Kuhl, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Medinnis, M.; Moenig, K.; Naumann, T.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Radescu, V.; Rubinskiy, I.; Sedov, G.; Stanescu-Bellu, M.; Stanitzki, M. M.; Starovoitov, P.; Styles, N. A.; Tackmann, K.; Vankov, P.; Viti, M.; Wasicki, C.; Wildt, M. A.; Zhu, H.] DESY, Hamburg, Germany.
[Kuutmann, E. Bergeaas; Bloch, I.; Dassoulas, J. A.; Dietrich, J.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Friedrich, C.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Gosdzik, B.; Grahn, K-J.; Gregor, I. M.; Hiller, K. H.; Huettmann, A.; Belenguer, M. Jimenez; Johnert, S.; Karnevskiy, M.; Katzy, J.; Kono, T.; Kuhl, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Medinnis, M.; Moenig, K.; Naumann, T.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Radescu, V.; Rubinskiy, I.; Sedov, G.; Stanescu-Bellu, M.; Stanitzki, M. M.; Starovoitov, P.; Styles, N. A.; Tackmann, K.; Vankov, P.; Viti, M.; Wasicki, C.; Wildt, M. A.; Zhu, H.] DESY, Zeuthen, Germany.
[Bunse, M.; Esch, H.; Goessling, C.; Hirsch, F.; Jung, C. A.; Klingenberg, R.; Reisinger, I.; Wu, X.] Tech Univ Dortmund, Inst Expt Phys 4, Dortmund, Germany.
[Anger, P.; Czodrowski, P.; Friedrich, F.; Goepfert, T.; Kobel, M.; Leonhardt, K.; Ludwig, A.; Mader, W. F.; Morgenstern, M.; Prudent, X.; Rudolph, C.; Schnoor, U.; Schwierz, R.; Seifert, F.; Steinbach, P.; Straessner, A.; Vest, A.; Wahrmund, S.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany.
[Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Ko, B. R.; Kotwal, A.; Oh, S. H.; Wang, C.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Bhimji, W.; Buckley, A. G.; Clark, P. J.; Debenedetti, C.; Harrington, R. D.; Martin, V. J.; O'Brien, B. J.; Schaelicke, A.; Selbach, K. E.; Smart, B. H.; Washbrook, A.; Wynne, B. M.] Univ Edinburgh, SUPA Sch Phys & Astron, Edinburgh, Midlothian, Scotland.
[Annovi, A.; Antonelli, M.; Bilokon, H.; Cerutti, F.; Curatolo, M.; Di Nardo, R.; Esposito, B.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Sansoni, A.; Testa, M.; Vilucchi, E.; Volpi, G.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Aad, G.; Ahles, F.; Barber, T.; Bernhard, R.; Boehler, M.; Bruneliere, R.; Christov, A.; Consorti, V.; Fehling-Kaschek, M.; Flechl, M.; Hartert, J.; Herten, G.; Horner, S.; Jakobs, K.; Janus, M.; Kononov, A. I.; Kuehn, S.; Lai, S.; Landgraf, U.; Lohwasser, K.; Ludwig, I.; Ludwig, J.; Mahboubi, K.; Mohr, W.; Nilsen, H.; Parzefall, U.; Rammensee, M.; Rave, T. C.; Rurikova, Z.; Schmidt, E.; Schumacher, M.; Siegert, F.; Stoerig, K.; Sundermann, J. E.; Temming, K. K.; Thoma, S.; Tsiskaridze, V.; Venturi, M.; Vivarelli, I.; von Radziewski, H.; Anh, T. Vu; Warsinsky, M.; Weiser, C.; Werner, M.; Winkelmann, S.; Xie, S.; Zimmermann, S.] Univ Freiburg, Fak Math & Phys, D-79106 Freiburg, Germany.
[Abdelalim, A. A.; Alexandre, G.; Backes, M.; Barone, G.; Bell, P. J.; Bell, W. H.; Noccioli, E. Benhar; Blondel, A.; Bucci, F.; Clark, A.; Doglioni, C.; Ferrere, D.; Gadomski, S.; Gonzalez-Sevilla, S.; Goulette, M. P.; Iacobucci, G.; La Rosa, A.; Lister, A.; Latour, B. Martin Dit; Mermod, P.; Herrera, C. Mora; Nektarijevic, S.; Nessi, M.; Nikolics, K.; Pasztor, G.; Picazio, A.; Pohl, M.; Rosbach, K.; Rosselet, L.] Univ Geneva, Sect Phys, Geneva, Switzerland.
[Barberis, D.; Beccherle, R.; Caso, C.; Dameri, M.; Darbo, G.; Parodi, A. Ferretto; Gagliardi, G.; Gemme, C.; Morettini, P.; Osculati, B.; Parodi, F.; Passaggio, S.; Rossi, L. P.; Schiavi, C.] Ist Nazl Fis Nucl, Sez Genova, Milan, Italy.
[Barberis, D.; Caso, C.; Dameri, M.; Parodi, A. Ferretto; Gagliardi, G.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy.
[Chikovani, L.; Tskhadadze, E. G.] Iv Javakhishvili Tbilisi State Univ, E Andronikashvili Inst Phys, Tbilisi, Rep of Georgia.
[Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.] Tbilisi State Univ, Inst High Energy Phys, Tbilisi, Rep of Georgia.
[Dueren, M.; Stenzel, H.] Univ Giessen, Inst Phys 2, Giessen, Germany.
[Allwood-Spiers, S. E.; Bates, R. L.; Britton, D.; Buttar, C. M.; Collins-Tooth, C.; D'Auria, S.; Doherty, T.; Doyle, A. T.; Edwards, N. C.; Ferrag, S.; Ferrando, J.; de Lima, D. E. Ferreira; Gemmell, A.; Gul, U.; Kar, D.; Kenyon, M.; Moraes, A.; O'Shea, V.; Barrera, C. Oropeza; Robson, A.; Saxon, D. H.; Smith, K. M.; St Denis, R. D.; Steele, G.; Thompson, A. S.; Wraight, K.; Wright, M.] Univ Glasgow, SUPA Sch Phys & Astron, Glasgow, Lanark, Scotland.
[Bierwagen, K.; Blumenschein, U.; Brandt, O.; Erdmann, J.; Evangelakou, D.; George, M.; Grosse-Knetter, J.; Guindon, S.; Hamer, M.; Hensel, C.; Keil, M.; Knue, A.; Kohn, F.; Krieger, N.; Kroeninger, K.; Lemmer, B.; Magradze, E.; Mann, A.; Meyer, J.; Morel, J.; Nackenhorst, O.; Pashapour, S.; Quadt, A.; Roe, A.; Schorlemmer, A. L. S.; Serkin, L.; Shabalina, E.; Uhrmacher, M.; Schroeder, T. Vazquez; Weber, P.; Weingarten, J.] Univ Gottingen, Inst Phys 2, Gottingen, Germany.
[Albrand, S.; Andrieux, M-L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Ueda, I.; Wang, J.; Weydert, C.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, Grenoble, France.
[Albrand, S.; Andrieux, M-L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Ueda, I.; Wang, J.; Weydert, C.] CNRS IN2P3, Grenoble, France.
[Albrand, S.; Andrieux, M-L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Ueda, I.; Wang, J.; Weydert, C.] Inst Natl Polytech Grenoble, F-38031 Grenoble, France.
[Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[da Costa, J. Barreiro Guimaraes; Belloni, A.; Catastini, P.; Conti, G.; Franklin, M.; Huth, J.; Jeanty, L.; Kagan, M.; Mateos, D. Lopez; Outschoorn, V. Martinez; Mercurio, K. M.; Mills, C.; Morii, M.; Skottowe, H. P.; Smith, B. C.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA.
[Anders, G.; Andrei, V.; Davygora, Y.; Dietzsch, T. A.; Dunford, M.; Geweniger, C.; Hanke, P.; Henke, M.; Khomich, A.; Kluge, E-E.; Lang, V. S.; Lendermann, V.; Lepold, F.; Meier, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H-C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Anders, C. F.; Kasieczka, G.; Narayan, R.; Schaetzel, S.; Schmitt, S.; Schoening, A.] Heidelberg Univ, Inst Phys, Heidelberg, Germany.
[Kugel, A.; Maenner, R.; Schroer, N.] Heidelberg Univ, ZITI Inst Tech Informat, Mannheim, Germany.
[Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan.
[Brunet, S.; Cwetanski, P.; Evans, H.; Gagnon, P.; Jain, V.; Luehring, F.; Ogren, H.; Penwell, J.; Poveda, J.; Price, D.; Whittington, D.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Epp, B.; Jussel, P.; Kneringer, E.; Kuhn, D.; Lukas, W.; Rudolph, G.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria.
[Behera, P. K.; Limper, M.; Mallik, U.; Pylypchenko, Y.; Zaidan, R.] Univ Iowa, Iowa City, IA USA.
[Chen, C.; Cochran, J.; De Lorenzi, F.; Dudziak, F.; Krumnack, N.; Prell, S.; Rosenberg, E. I.; Ruiz-Martinez, A.; Shrestha, S.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA.
[Aleksandrov, I. N.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Huseynov, N.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khramov, E.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Minashvili, I. A.; Mineev, M.; Olchevski, A. G.; Peshekhonov, V. D.; Plotnikova, E.; Pozdnyakov, V.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Shiyakova, M.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.; Zhemchugov, A.; Zimin, N. I.] JINR Dubna, Joint Inst Nucl Res, Dubna, Russia.
[Amako, K.; Arai, Y.; Doi, Y.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Mitsui, S.; Nagano, K.; Nozaki, M.; Odaka, S.; Sasaki, O.; Suzuki, Y.; Takubo, Y.; Tanaka, S.; Terada, S.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan.
[Hayakawa, T.; King, M.; Kishimoto, T.; Kitamura, T.; Kurashige, H.; Matsushita, T.; Ochi, A.; Suzuki, Y.; Takeda, H.; Tani, K.; Watanabe, I.; Yamazaki, Y.; Yuan, L.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan.
[Ishino, M.; Sasao, N.; Sumida, T.] Kyoto Univ, Fac Sci, Kyoto, Japan.
[Takashima, R.] Kyoto Univ, Kyoto 612, Japan.
[Kawagoe, K.; Oda, S.; Tojo, J.] Kyushu Univ, Dept Phys, Fukuoka 812, Japan.
[Alonso, F.; Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, Inst Fis La Plata, La Plata, Buenos Aires, Argentina.
[Alonso, F.; Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Consejo Nacl Invest Cient & Tecn, La Plata, Buenos Aires, Argentina.
[Barton, A. E.; Borissov, G.; Bouhova-Thacker, E. V.; Chilingarov, A.; Davidson, R.; de Mora, L.; Dearnaley, W. J.; Fox, H.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Maddocks, H. J.; Smizanska, M.; Walder, J.] Univ Lancaster, Dept Phys, Lancaster, England.
[Bianco, M.; Cataldi, G.; Chiodini, G.; Gorini, E.; Grancagnolo, F.; Orlando, N.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Ist Nazl Fis Nucl, Sez Lecce, Milan, Italy.
[Bianco, M.; Gorini, E.; Orlando, N.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Matemat & Fis, Lecce, Italy.
[Allport, P. P.; Bundock, A. C.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Mahmoud, S.; Maxfield, S. J.; Mehta, A.; Migas, S.; Price, J.; Sellers, G.; Vossebeld, J. H.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England.
[Cindro, V.; Deliyergiyev, M.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia.
[Cindro, V.; Deliyergiyev, M.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Univ Ljubljana, Ljubljana, Slovenia.
[Adragna, P.; Bona, M.; Carter, A. A.; Cerrito, L.; Eisenhandler, E.; Ellis, K.; Goddard, J. R.; Landon, M. P. J.; Lloyd, S. L.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Salamanna, G.; Castanheira, M. Teixeira Dias; Wiglesworth, C.] Queen Mary Univ London, Sch Phys & Astron, London, England.
[Alam, M. A.; Berry, T.; Boisvert, V.; Brooks, T.; Cantrill, R.; Cowan, G.; Duguid, L.; Edwards, A.; George, S.; Goncalo, R.; Hayden, D.; Vazquez, J. G. Panduro; Pastore, Fr; Rose, M.; Spano, F.; Strong, J. A.; Teixeira-Dias, P.] Royal Holloway Univ London, Dept Phys, London, England.
[Baker, S.; Bernat, P.; Bieniek, S. P.; Butterworth, J. M.; Campanelli, M.; Chislett, R. T.; Christidi, I. A.; Cooper, B. D.; Davison, A. R.; Dobson, E.; Hesketh, G. G.; Jansen, E.; Konstantinidis, N.; Lambourne, L.; Monk, J.; Nash, M.; Nurse, E.; Prabhu, R.; Sherwood, P.; Simmons, B.; Taylor, C.; Wardrope, D. R.; Waugh, B. M.; Wijeratne, P. A.] UCL, Dept Phys & Astron, London, England.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; Crescioli, F.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] UPMC, Lab Phys Nucl & Hautes Energies, Paris, France.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; Crescioli, F.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] Univ Paris Diderot, Paris, France.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, P.; Chareyre, E.; Crescioli, F.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] CNRS IN2P3, Paris, France.
[Akesson, T. P. A.; Bocchetta, S. S.; Floderus, A.; Hawkins, A. D.; Hedberg, V.; Jarlskog, G.; Lundberg, B.; Lytken, E.; Meirose, B.; Mjornmark, J. U.; Smirnova, O.] Lund Univ, Fys Inst, Lund, Sweden.
[Arnal, V.; Barreiro, F.; Cantero, J.; De la Torre, H.; Del Peso, J.; Glasman, C.; Labarga, L.; Llorente Merino, J.; Terron, J.] Univ Autonoma Madrid, Dept Fis Teor C 15, Madrid, Spain.
[Aharrouche, M.; Arnaez, O.; Blum, W.; Buescher, V.; Caputo, R.; Eckweiler, S.; Edmonds, K.; Ellinghaus, F.; Ertel, E.; Fiedler, F.; Fleckner, J.; Goeringer, C.; Handel, C.; Hohlfeld, M.; Hsu, P. J.; Ji, W.; Kawamura, G.; Kleinknecht, K.; Koenig, S.; Koepke, L.; Lungwitz, M.; Masetti, L.; Maettig, S.; Meyer, C.; Moreno, D.; Mueller, T.; Neusiedl, A.; Sander, H. G.; Schaefer, U.; Schmitt, C.; Schroeder, C.; Simioni, E.; Tapprogge, S.; Wollstadt, S. J.] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
[Almond, J.; Borri, M.; Brown, G.; Chavda, V.; Cox, B. E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Howarth, J.; Ibbotson, M.; Joshi, K. D.; Klinger, J. A.; Loebinger, F. K.; Marx, M.; Masik, J.; Neep, T. J.; Oh, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Robinson, J. E. M.; Watts, S.; Woudstra, M. J.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England.
[Aoun, S.; Bee, C. P.; Bertella, C.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Djama, F.; Etienne, F.; Feligioni, L.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Maurer, J.; Monnier, E.; Odier, J.; Pralavorio, P.; Rozanov, A.; Talby, M.; Tannoury, N.; Tiouchichine, E.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] Aix Marseille Univ, CPPM, Marseille, France.
[Aoun, S.; Bee, C. P.; Bertella, C.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Djama, F.; Etienne, F.; Feligioni, L.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Maurer, J.; Monnier, E.; Odier, J.; Pralavorio, P.; Rozanov, A.; Talby, M.; Tannoury, N.; Tiouchichine, E.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] CNRS IN2P3, Marseille, France.
[Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Pais, P.; Pueschel, E.; Varol, T.; Ventura, D.; Willocq, S.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA.
[Belanger-Champagne, C.; Caron, B.; Chapleau, B.; Cheatham, S.; Corriveau, F.; Dobbs, M.; Dufour, M-A.; Klemetti, M.; Mc Donald, J.; Robertson, S. H.; Schram, M.; Stockton, M. C.; Vachon, B.; Warburton, A.] McGill Univ, Dept Phys, Quebec City, PQ, Canada.
[Barberio, E. L.; Davidson, N.; Diglio, S.; Hamano, K.; Jennens, D.; Kubota, T.; Limosani, A.; Moorhead, G. F.; Hanninger, G. Nunes; Phan, A.; Shao, Q. T.; Tan, K. G.; Taylor, G. N.; Thong, W. M.; Volpi, M.; White, M. J.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Armbruster, A. J.; Borroni, S.; Chapman, J. W.; Cirilli, M.; Dai, T.; Diehl, E. B.; Ferretti, C.; Goldfarb, S.; Harper, D.; Levin, D.; Li, X.; Liu, H.; Liu, J. B.; Liu, L.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Thun, R. P.; Walch, S.; Wilson, A.; Wooden, G.; Wu, Y.; Yang, H.; Zhou, B.; Zhu, J.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Abolins, M.; Gonzalez, B. Alvarez; Arabidze, G.; Brock, R.; Bromberg, C.; Caughron, S.; Fedorko, W.; Ge, P.; Hauser, R.; Holzbauer, J. L.; Huston, J.; Koll, J.; Linnemann, J. T.; Mangeard, P. S.; Martin, B.; Miller, R. J.; Pope, B. G.; Schwienhorst, R.; Stelzer, H. J.; Tollefson, K.; True, P.; Zhang, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Alessandria, F.; Alimonti, G.; Andreazza, A.; Baccaglioni, G.; Besana, M. I.; Broggi, F.; Carminati, L.; Cavalli, D.; Citterio, M.; Consonni, S. M.; Costa, G.; Fanti, M.; Favareto, A.; Giugni, D.; Koletsou, I.; Lari, T.; Mandelli, L.; Mazzanti, M.; Meloni, F.; Meroni, C.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Simoniello, R.; Tartarelli, G. F.; Troncon, C.; Turra, R.; Vegni, G.; Volpini, G.] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy.
[Andreazza, A.; Besana, M. I.; Carminati, L.; Consonni, S. M.; Fanti, M.; Favareto, A.; Meloni, F.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Simoniello, R.; Turra, R.; Vegni, G.] Univ Milan, Dipartimento Fis, Milan, Italy.
[Bogouch, A.; Harkusha, S.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk, Byelarus.
[Yanush, S.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus.
[Taylor, F. E.] MIT, Dept Phys, Cambridge, MA 02139 USA.
[Arguin, J-F.; Azuelos, G.; Banerjee, P.; Bouchami, J.; Davies, M.; Giunta, M.; Leroy, C.; Martin, J. P.] Univ Montreal, Grp Particle Phys, Quebec City, PQ, Canada.
[Akimov, A. V.; Baranov, S. P.; Gavrilenko, I. L.; Komar, A. A.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P. Yu.; Shmeleva, A.; Snesarev, A. A.; Sulin, V. V.; Tikhomirov, V. O.] Acad Sci, PN Lebedev Phys Inst, Moscow, Russia.
[Artamonov, A.; Gorbounov, P. A.; Khovanskiy, V.; Shatalov, P. B.; Tsukerman, I. I.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Antonov, A.; Belotskiy, K.; Bulekov, O.; Dolgoshein, B. A.; Kantserov, V. A.; Khodinov, A.; Romaniouk, A.; Shulga, E.; Smirnov, S. Yu.; Smirnov, Y.; Soldatov, E. Yu.; Timoshenko, S.] Moscow Engn & Phys Inst, Moscow, Russia.
[Gladilin, L. K.; Grishkevich, Y. V.; Kramarenko, V. A.; Rud, V. I.; Sivoklokov, S. Yu.; Smirnova, L. N.] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Adomeit, S.; Beale, S.; Becker, S.; Biebel, O.; Bortfeldt, J.; Calfayan, P.; de Graat, J.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Heller, C.; Hertenberger, R.; Kummer, C.; Legger, F.; Lichtnecker, M.; Lorenz, J.; Mameghani, R.; Mueller, T. A.; Nunnemann, T.; Oakes, L. B.; Rauscher, F.; Reznicek, P.; Ruschke, A.; Sanders, M. P.; Schaile, D.; Schieck, J.; Serfon, C.; Staude, A.; Vladoiu, D.; Walker, R.; Will, J. Z.; Zhuang, X.; Zibell, A.] Univ Munich, Fak Phys, Munich, Germany.
[Barillari, T.; Beimforde, M.; Bethke, S.; Bittner, B.; Bronner, J.; Capriotti, D.; Compostella, G.; Cortiana, G.; Dubbert, J.; Flowerdew, M. J.; Giovannini, P.; Ince, T.; Jantsch, A.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Macchiolo, A.; Manfredini, A.; Menke, S.; Moser, H. G.; Nagel, M.; Nisius, R.; Oberlack, H.; Pahl, C.; Pospelov, G. E.; Potrap, I. N.; Richter, R.; Salihagic, D.; Sandstroem, R.; Schacht, P.; Schwegler, Ph; Stern, S.; Stonjek, S.; Vanadia, M.; von der Schmitt, H.; Weigell, P.; Wildauer, A.; Zanzi, D.; Zhuravlov, V.] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany.
[Shimojima, M.] Nagasaki Inst Appl Sci, Nagasaki, Japan.
[Aoki, M.; Hasegawa, S.; Morvaj, L.; Ohshima, T.; Shimizu, S.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Aoki, M.; Hasegawa, S.; Morvaj, L.; Ohshima, T.; Shimizu, S.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648601, Japan.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Carlino, G.; Chiefari, G.; Conventi, F.; de Asmundis, R.; Della Pietra, M.; della Volpe, D.; Di Donato, C.; Doria, A.; Giordano, R.; Iengo, P.; Izzo, V.; Merola, L.; Musto, E.; Patricelli, S.; Sanchez, A.; Sekhniaidze, G.] Ist Nazl Fis Nucl, Sez Napoli, Milan, Italy.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Chiefari, G.; della Volpe, D.; Di Donato, C.; Giordano, R.; Merola, L.; Musto, E.; Patricelli, S.; Sanchez, A.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy.
[Gorelov, I.; Hoeferkamp, M. R.; Seidel, S. C.; Toms, K.; Wang, R.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Besjes, G. J.; Caron, S.; Chelstowska, M. A.; De Groot, N.; Filthaut, F.; Klok, P. F.; Koetsveld, F.; Konig, A. C.; Raas, M.; Salvucci, A.] Radboud Univ Nijmegen Nikhef, Inst Math Astrophys & Particle Phys, Nijmegen, Netherlands.
[Aben, R.; Bentvelsen, S.; Berglund, E.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; de Jong, P.; De Nooij, L.; Deluca, C.; Deviveiros, P. O.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Mahlstedt, J.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Pani, P.; Rijpstra, M.; Ruckstuhl, N.; Ta, D.; Tsiakiris, M.; Turlay, E.; Van der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; Van der Leeuw, R.; van der Poel, E.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vranjes Milosavljevic, M.; Vreeswijk, M.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Aben, R.; Bentvelsen, S.; Berglund, E.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; de Jong, P.; De Nooij, L.; Deluca, C.; Deviveiros, P. O.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Mahlstedt, J.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Pani, P.; Rijpstra, M.; Ruckstuhl, N.; Ta, D.; Tsiakiris, M.; Turlay, E.; Van der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; Van der Leeuw, R.; van der Poel, E.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vranjes Milosavljevic, M.; Vreeswijk, M.] Univ Amsterdam, Amsterdam, Netherlands.
[Calkins, R.; Chakraborty, D.; Cole, S.; de Lima, J. G. Rocha; Suhr, C.; Yurkewicz, A.; Zutshi, V.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[Anisenkov, A.; Beloborodova, O.; Bobrovnikov, V. S.; Bogdanchikov, A.; Kazanin, V. F.; Kolachev, G. M.; Korol, A.; Malyshev, V.; Maslennikov, A. L.; Maximov, D. A.; Orlov, I.; Peleganchuk, S. V.; Schamov, A. G.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.] SB RAS, Budker Inst Nucl Phys, Novosibirsk, Russia.
[Budick, B.; Casadei, D.; Cranmer, K.; Haas, A.; van Huysduynen, L. Hooft; Kaplan, B.; Konoplich, R.; Krasznahorkay, A.; Kreiss, S.; Lewis, G. H.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Prokofiev, K.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA.
[Fisher, M. J.; Gan, K. K.; Ishmukhametov, R.; Kagan, H.; Kass, R. D.; Merritt, H.; Moss, J.; Nagarkar, A.; Pignotti, D. T.; Rahimi, A. M.; Strang, M.; Yang, Y.] Ohio State Univ, Columbus, OH 43210 USA.
[Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan.
[Abbott, B.; Gutierrez, P.; Jana, D. K.; Marzin, A.; Meera-Lebbai, R.; Norberg, S.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Abi, B.; Khanov, A.; Rizatdinova, F.; Yu, J.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
[Hamal, P.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic.
[Brau, J. E.; Potter, C. T.; Ptacek, E.; Radloff, P.; Reinsch, A.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA.
[Khalek, S. Abdel; Andari, N.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Bourdarios, C.; De la Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J-F.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Martinez, N. Lorenzo; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Wicek, F.; Zerwas, D.; Zhang, Z.] Univ Paris 11, LAL, Orsay, France.
[Khalek, S. Abdel; Andari, N.; Arnault, C.; Auge, E.; Barrillon, P.; Benoit, M.; Binet, S.; Bourdarios, C.; De la Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J-F.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Martinez, N. Lorenzo; Lounis, A.; Makovec, N.; Matricon, P.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Wicek, F.; Zerwas, D.; Zhang, Z.] CNRS IN2P3, Orsay, France.
[Hanagaki, K.; Hirose, M.; Lee, J. S. H.; Meguro, T.; Nomachi, M.; Okamura, W.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan.
[Bugge, L.; Buran, T.; Cameron, D.; Gjelsten, B. K.; Gramstad, E.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Read, A. L.; Rohne, O.; Samset, B. H.; Smestad, L.; Stapnes, S.; Strandlie, A.] Univ Oslo, Dept Phys, Oslo, Norway.
[Apolle, R.; Barr, A. J.; Boddy, C. R.; Brandt, G.; Buchanan, J.; Buckingham, R. M.; Cooper-Sarkar, A. M.; Dafinca, A.; Davies, E.; Gallas, E. J.; Gwenlan, C.; Hall, D.; Hays, C. P.; Howard, J.; Huffman, T. B.; Issever, C.; King, R. S. B.; Kogan, L. A.; Korn, A.; Larner, A.; Lewis, A.; Liang, Z.; Livermore, S. S. A.; Mattravers, C.; Nickerson, R. B.; Pinder, A.; Robichaud-Veronneau, A.; Ryder, N. C.; Short, D.; Tseng, J. C-L.; Vickey, T.; Viehhauser, G. H. A.; Weidberg, A. R.; Whitehead, S. R.; Young, C. J. S.; Zhong, J.] Univ Oxford, Dept Phys, Oxford, England.
[Colombo, T.; Conta, C.; Ferrari, R.; Franchino, S.; Fraternali, M.; Gaudio, G.; Lanza, A.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.; Vercesi, V.] Ist Nazl Fis Nucl, Sez Pavia, Milan, Italy.
[Colombo, T.; Conta, C.; Franchino, S.; Fraternali, M.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy.
[Alison, J.; Brendlinger, K.; Degenhardt, J.; Dressnandt, N.; Fratina, S.; Heim, S.; Hines, E.; Hong, T. M.; Jackson, B.; Keener, P. T.; Kroll, J.; Kunkle, J.; Lester, C. M.; Lipeles, E.; Newcomer, F. M.; Olivito, D.; Ospanov, R.; Reece, R.; Saxon, J.; Schaefer, D.; Stahlman, J.; Thomson, E.; Van Berg, R.; Wagner, P.; Williams, H. H.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA.
[Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Solovyev, V.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Roda, C.; Sarri, F.; White, S.; Zinonos, Z.] Ist Nazl Fis Nucl, Sez Pisa, Milan, Italy.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Roda, C.; Sarri, F.; White, S.; Zinonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy.
[Boudreau, J.; Cleland, W.; Escobar, C.; Kittelmann, T.; Mueller, J.; Prieur, D.; Savinov, V.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Aguilar-Saavedra, J. A.; Amor Dos Santos, S. P.; Amorim, A.; Anjos, N.; Carvalho, J.; Castro, N. F.; Conde Muino, P.; Da Cunha Sargedas De Sousa, M. J.; Do Valle Wemans, A.; Fiolhais, M. C. N.; Galhardo, B.; Gomes, A.; Jorge, P. M.; Lopes, L.; Miguens, J. Machado; Maio, A.; Maneira, J.; Oliveira, M.; Onofre, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Veloso, F.; Wolters, H.] Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon, Portugal.
[Aguilar-Saavedra, J. A.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain.
[Aguilar-Saavedra, J. A.] Univ Granada, CAFPE, Granada, Spain.
[Bohm, J.; Chudoba, J.; Gallus, P.; Gunther, J.; Jakoubek, T.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Svatos, M.; Tasevsky, M.; Tic, T.; Valenta, J.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Augsten, K.; Holy, T.; Hubacek, Z.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Sodomka, J.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vacek, V.; Vlasak, M.; Vokac, P.; Zeman, M.] Czech Tech Univ, CR-16635 Prague, Czech Republic.
[Balek, P.; Chalupkova, I.; Davidek, T.; Dolejsi, J.; Dolezal, Z.; Kodys, P.; Leitner, R.; Novakova, J.; Rybar, M.; Spousta, M.; Strachota, P.; Suk, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.; Wilhelm, I.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
[Ammosov, V. V.; Borisov, A.; Denisov, S. P.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Ivashin, A. V.; Karyukhin, A. N.; Korotkov, V. A.; Kozhin, A. S.; Minaenko, A. A.; Myagkov, A. G.; Nikolaenko, V.; Solodkov, A. A.; Solovyanov, O. V.; Starchenko, E. A.; Zaitsev, A. M.; Zenin, O.; Zmouchko, V. V.] State Res Ctr Inst High Energy Phys, Protvino, Russia.
[Adye, T.; Apolle, R.; Baines, J. T.; Barnett, B. M.; Burke, S.; Davies, E.; Dewhurst, A.; Emeliyanov, D.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Haywood, S. J.; Kirk, J.; Mattravers, C.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Nash, M.; Norton, P. R.; Phillips, P. W.; Sankey, D. P. C.; Scott, W. G.; Tyndel, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
[Benslama, K.; Smit, G. V. Ybeles] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada.
[Tanaka, S.] Ritsumeikan Univ, Kusatsu, Shiga, Japan.
[Anulli, F.; Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Pedis, D.; De Salvo, A.; De Zorzi, G.; Dionisi, C.; Falciano, S.; Gauzzi, P.; Gentile, S.; Giagu, S.; Ippolito, V.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Luminari, L.; Marzano, F.; Mirabelli, G.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Rosati, S.; Rossi, E.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Vari, R.; Veneziano, S.; Zanello, L.] Ist Nazl Fis Nucl, Sez Roma I, Milan, Italy.
[Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Zorzi, G.; Dionisi, C.; Gauzzi, P.; Gentile, S.; Giagu, S.; Ippolito, V.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Messina, A.; Rossi, E.; Camillocci, E. Solfaroli; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Simone, A.; Liberti, B.; Marchese, F.; Mazzaferro, L.; Salamon, A.; Santonico, R.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Milan, Italy.
[Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Simone, A.; Marchese, F.; Mazzaferro, L.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy.
[Bacci, C.; Baroncelli, A.; Biglietti, M.; Bortolotto, V.; Branchini, P.; Ceradini, F.; Di Luise, S.; Farilla, A.; Graziani, E.; Iodice, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Stanescu, C.] Ist Nazl Fis Nucl, Sez Roma Tre, Milan, Italy.
[Bacci, C.; Bortolotto, V.; Ceradini, F.; Di Luise, S.; Orestano, D.; Pastore, F.; Petrucci, F.] Univ Roma Tre, Dipartimento Matemat & Fis, Rome, Italy.
[Benchekroun, D.; Chafaq, A.; Gouighri, M.; Hoummada, A.; Lablak, S.] Univ Hassan 2, Reseau Univ Phys Hautes Energies, Fac Sci Ain Chock, Casablanca, Morocco.
[Ghazlane, H.] Ctr Natl Energie Sci Tech Nucl, Rabat, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] LPTPM, Oujda, Morocco.
[Cherkaoui El Moursli, R.] Univ Mohammed V Agdal, Fac Sci, Rabat, Morocco.
[Abreu, H.; Bachacou, H.; Bauer, F.; Besson, N.; Blanchard, J-B.; Bolnet, N. M.; Boonekamp, M.; Chevalier, L.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gauthier, L.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Legendre, M.; Maiani, C.; Mal, P.; Ramos, J. A. Manjarres; Mansoulie, B.; Meyer, J-P.; Mijovic, L.; Morange, N.; Mountricha, E.; Hong, V. Nguyen Thi; Nicolaidou, R.; Ouraou, A.; Resende, B.; Royon, C. R.; Schoeffel, L.; Schune, Ph; Schwindling, J.; Simard, O.; Virchaux, M.; Vranjes, N.; Xiao, M.; Xu, C.] CEA Saclay Commissariat Energie Atom & Energies A, DSM IRFU Inst Rech Lois Fondamentales Univers, Gif Sur Yvette, France.
[Chouridou, S.; Damiani, D. S.; Grillo, A. A.; Hare, G. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, A. J.; Nielsen, J.; Sadrozinski, H. F-W.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Beckingham, M.; Coccaro, A.; Goussiou, A. G.; Harris, O. M.; Keller, J. S.; Lubatti, H. J.; Rompotis, N.; Rothberg, J.; Verducci, M.; Watts, G.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfield, R.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Korolkova, E. V.; Mayne, A.; Mcfayden, J. A.; Miyagawa, P. S.; Owen, S.; Paganis, E.; Suruliz, K.; Tovey, D. R.; Tsionou, D.; Tua, A.; Xu, D.] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England.
[Hasegawa, Y.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan.
[Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Rosenthal, O.; Sipica, V.; Walkowiak, W.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany.
[Dawe, E.; Godfrey, J.; Kvita, J.; O'Neil, D. C.; Petteni, M.; Stelzer, B.; Tanasijczuk, A. J.; Trottier-McDonald, M.; Vetterli, M. C.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Aracena, I.; Mayes, J. Backus; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Cogan, J. G.; Eifert, T.; Fulsom, B. G.; Gao, Y. S.; Grenier, P.; Hansson, P.; Kocian, M.; Koi, T.; Lowe, A. J.; Malone, C.; Mount, R.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Smith, D.; Strauss, E.; Su, D.; Wilson, M. G.; Wittgen, M.; Young, C.] SLAC Natl Accelerator Lab, Stanford, CA USA.
[Batkova, L.; Blazek, T.; Federic, P.; Pecsy, M.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia.
[Antos, J.; Bruncko, D.; Ferencei, J.; Kladiva, E.; Seman, M.; Strizenec, P.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice 04353, Slovakia.
[Aurousseau, M.; Yacoob, S.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa.
[Hamilton, A.; Leney, K. J. C.; Vickey, T.; Boeriu, O. E. Vickey] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa.
[Asman, B.; Bendtz, K.; Bohm, C.; Clement, C.; Eriksson, D.; Gellerstedt, K.; Hellman, S.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jon-And, K.; Khandanyan, H.; Kim, H.; Klimek, P.; Lundberg, J.; Lundberg, O.; Milstead, D. A.; Moa, T.; Papadelis, A.; Silverstein, S. B.; Sjoelin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Stockholm Univ, Dept Phys, Stockholm, Sweden.
[Asman, B.; Bendtz, K.; Clement, C.; Gellerstedt, K.; Hellman, S.; Johansen, M.; Jon-And, K.; Khandanyan, H.; Kim, H.; Klimek, P.; Lundberg, J.; Lundberg, O.; Milstead, D. A.; Moa, T.; Sjoelin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Oskar Klein Ctr, Stockholm, Sweden.
[Jovicevic, J.; Kuwertz, E. S.; Lund-Jensen, B.; Strandberg, J.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden.
[Ahmad, A.; Arfaoui, S.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; Li, H.; Mastrandrea, P.; McCarthy, R. L.; Mohapatra, S.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Ahmad, A.; Arfaoui, S.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; Li, H.; Mastrandrea, P.; McCarthy, R. L.; Mohapatra, S.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Bartsch, V.; De Santo, A.; Martin-Haugh, S.; Potter, C. J.; Rose, A.; Salvatore, F.; Sutton, M. R.] Univ Sussex, Dept Phys & Astron, Brighton, E Sussex, England.
[Bangert, A.; Cuthbert, C.; Patel, N. D.; Saavedra, A. F.; Scarcella, M.; Varvell, K. E.; Watson, I. J.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Chu, M. L.; Hou, S.; Jamin, D. O.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, H.; Wang, J.; Wang, S. M.; Weng, Z.; Zhang, D.; Zhou, Y.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Harpaz, S. Behar; Kajomovitz, E.; Kopeliansky, R.; Rozen, Y.; Tarem, S.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel.
[Abramowicz, H.; Alexander, G.; Amram, N.; Bella, G.; Benary, O.; Benhammou, Y.; Etzion, E.; Gershon, A.; Guttman, N.; Hod, N.; Munwes, Y.; Oren, Y.; Reinherz-Aronis, E.; Sadeh, I.; Silver, Y.; Soffer, A.; Taiblum, N.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Iliadis, D.; Kordas, K.; Kouskoura, V.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kazama, S.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsunaga, H.; Nakamura, K.; Nakamura, T.; Ninomiya, Y.; Okuyama, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Yamaguchi, H.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.; Yoshihara, K.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kazama, S.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsunaga, H.; Nakamura, K.; Nakamura, T.; Ninomiya, Y.; Okuyama, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Yamaguchi, H.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.; Yoshihara, K.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan.
[Ishitsuka, M.; Jinnouchi, O.; Kanno, T.; Kuze, M.; Nagai, R.; Nobe, T.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan.
[AbouZeid, O. S.; Bain, T.; Brelier, B.; Cheung, S. L.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Guo, B.; Ilic, N.; Keung, J.; Krieger, P.; Martens, F. K.; Orr, R. S.; Rezvani, R.; Rosenbaum, G. A.; Savard, P.; Sinervo, P.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.; Venturi, N.] Univ Toronto, Dept Phys, Toronto, ON, Canada.
[Azuelos, G.; Canepa, A.; Chekulaev, S. V.; Fortin, D.; Gingrich, D. M.; Koutsman, A.; Losty, M. J.; Nugent, I. M.; Oakham, F. G.; Oram, C. J.; Codina, E. Perez; Savard, P.; Schouten, D.; Seuster, R.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Garcia, J. A. Benitez; Palacino, G.; Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada.
[Hanawa, K.; Hara, K.; Hayashi, T.; Kim, S. H.; Kiuchi, K.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Fac Pure & Appl Sci, Tsukuba, Ibaraki, Japan.
[Beauchemin, P. H.; Hamilton, S.; Meoni, E.; Napier, A.; Rolli, S.; Sliwa, K.; Todorova-Nova, S.; Wetter, J.] Tufts Univ, Dept Phys & Astron, Medford, MA 02155 USA.
[Losada, M.; Loureiro, K. F.; Navas, L. Mendoza; Navarro, G.; Sandoval, C.] Univ Antonio Narino, Ctr Invest, Bogota, Colombia.
[Corso-Radu, A.; Deng, J.; Farrell, S.; Eschrich, I. Gough; Lankford, A. J.; Magnoni, L.; Mete, A. S.; Nelson, A.; Scannicchio, D. A.; Schernau, M.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
[Acharya, B. S.; Alhroob, M.; Brazzale, S. F.; Cobal, M.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.; Soualah, R.] Ist Nazl Fis Nucl, Grp Collegato Udine, Milan, Italy.
[Acharya, B. S.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy.
[Alhroob, M.; Brazzale, S. F.; Cobal, M.; De Sanctis, U.; Del Papa, C.; Giordani, M. P.; Pinamonti, M.; Shaw, K.; Soualah, R.] Univ Udine, Dipartimento Chim Fis & Ambiente, I-33100 Udine, Italy.
[Atkinson, M.; Basye, A.; Benekos, N.; Cavaliere, V.; Chang, P.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.; Yamamoto, S.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Brenner, R.; Buszello, C. P.; Coniavitis, E.; Ekelof, T.; Ellert, M.; Ferrari, A.; Isaksson, C.; Pelikan, D.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden.
[Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Minano Moya, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Pedraza Lopez, S.; Perez Garcia-Estan, M. T.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez, J.; Sanchez Martinez, V.; Solans, C. A.; Soldevila, U.; Torro Pastor, E.; Valero, A.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain.
[Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Minano Moya, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Pedraza Lopez, S.; Perez Garcia-Estan, M. T.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez, J.; Sanchez Martinez, V.; Solans, C. A.; Soldevila, U.; Torro Pastor, E.; Valero, A.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain.
[Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Minano Moya, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Pedraza Lopez, S.; Perez Garcia-Estan, M. T.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez, J.; Sanchez Martinez, V.; Solans, C. A.; Soldevila, U.; Torro Pastor, E.; Valero, A.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.] Univ Valencia, Dept Ingn Elect, Valencia, Spain.
[Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Minano Moya, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Pedraza Lopez, S.; Perez Garcia-Estan, M. T.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez, J.; Sanchez Martinez, V.; Solans, C. A.; Soldevila, U.; Torro Pastor, E.; Valero, A.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.] Univ Valencia, Inst Microelect Barcelona IMB CNM, Valencia, Spain.
[Cabrera Urban, S.; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Minano Moya, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Pedraza Lopez, S.; Perez Garcia-Estan, M. T.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez, J.; Sanchez Martinez, V.; Solans, C. A.; Soldevila, U.; Torro Pastor, E.; Valero, A.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.] CSIC, Valencia, Spain.
[Axen, D.; Gay, C.; Gecse, Z.; Loh, C. W.; Mills, W. J.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada.
[Albert, J.; Astbury, A.; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J-R.; Marino, C. P.; Martyniuk, A. C.; McPherson, R. A.; Ouellette, E. A.; Plamondon, M.; Sobie, R.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada.
[Farrington, S. M.; Jones, G.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England.
[Kimura, N.; Yorita, K.] Waseda Univ, Tokyo, Japan.
[Alon, R.; Barak, L.; Bressler, S.; Citron, Z. H.; Duchovni, E.; Frank, T.; Gabizon, O.; Gross, E.; Groth-Jensen, J.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Roth, I.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Banerjee, Sw.; Carrillo-Montoya, G. D.; Hernandez, A. M. Castaneda; Castaneda-Miranda, E.; Chen, X.; Di Mattia, A.; Dos Anjos, A.; Fang, Y.; Castillo, L. R. Flores; Gutzwiller, O.; Jared, R. C.; Ji, H.; Ju, X.; Kashif, L.; Ma, L. L.; Garcia, B. R. Mellado; Ming, Y.; Pan, Y. B.; Morales, M. I. Pedraza; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Fleischmann, P.; Meyer, J.; Redelbach, A.; Siragusa, G.; Stroehmer, R.; Trefzger, T.] Univ Wurzburg, Fak Phys & Astron, D-97070 Wurzburg, Germany.
[Barisonzi, M.; Becker, K.; Becks, K. H.; Boek, J.; Boek, T. T.; Braun, H. M.; Cornelissen, T.; Duda, D.; Fleischmann, S.; Flick, T.; Glitza, K. W.; Gorfine, G.; Hamacher, K.; Harenberg, T.; Henss, T.; Hirschbuehl, D.; Kalinin, S.; Kersten, S.; Khoroshilov, A.; Kohlmann, S.; Lenzen, G.; Maettig, P.; Mechtel, M.; Neumann, M.; Pataraia, S.; Sandhoff, M.; Sartisohn, G.; Sturm, P.; Wagner, W.; Wicke, D.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich Phys C, Wuppertal, Germany.
[Adelman, J.; Baker, O. K.; Bedikian, S.; Almenar, C. Cuenca; Cummings, J.; Czyczula, Z.; Demers, S.; Garberson, F.; Golling, T.; Guest, D.; Henrichs, A.; Lagouri, T.; Lee, L.; Loginov, A.; Sherman, D.; Tipton, P.; Wall, R.; Walsh, B.] Yale Univ, Dept Phys, New Haven, CT USA.
[Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Biscarat, C.; Cogneras, E.; Rahal, G.] IN2P3, Ctr Calcul, Villeurbanne, France.
[Acharya, B. S.; Beloborodova, O.] Kings Coll London, Dept Phys, London WC2R 2LS, England.
[Amorim, A.; Gomes, A.; Maio, A.; Pina, J.] Univ Lisbon, Fac Ciencias, Lisbon, Portugal.
[Amorim, A.; Gomes, A.; Maio, A.; Pina, J.] Univ Lisbon, CFNUL, P-1699 Lisbon, Portugal.
[Bawa, H. S.; Gao, Y. S.; Lowe, A. J.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA.
[Maximov, D. A.; Talyshev, A.; Tikhonov, Y. A.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Carvalho, J.; Fiolhais, M. C. N.; Oliveira, M.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal.
[Hernandez, A. M. Castaneda] UASLP, Dept Phys, San Luis Potosi, Mexico.
[Conventi, F.; Della Pietra, M.] Univ Napoli Parthenope, Naples, Italy.
[Demirkoz, B.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Greenwood, Z. D.; Sawyer, L.] Louisiana Tech Univ, Ruston, LA 71270 USA.
[Do Valle Wemans, A.] Univ Nova Lisboa, Dep Fis, Caparica, Portugal.
[Do Valle Wemans, A.] Univ Nova Lisboa, CEFITEC, Fac Ciencias & Tecnol, Caparica, Portugal.
UCL, London, England.
[Hamilton, A.] Univ Cape Town, Dept Phys, ZA-7925 Cape Town, South Africa.
[Huseynov, N.] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan.
[Kono, T.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Konoplich, R.] Manhattan Coll, New York, NY USA.
[Liang, Z.; Soh, D. A.; Weng, Z.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Peoples R China.
[Lin, S. C.] Acad Sinica, Inst Phys, Acad Sinica Grid Comp, Taipei, Taiwan.
[Mal, P.] Natl Inst Sci Educ & Res, Sch Phys Sci, Bhubaneswar, Orissa, India.
[Onofre, A.] Univ Minho, Dept Fis, Braga, Portugal.
[Park, W.; Purohit, M.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pasztor, G.; Toth, J.] Wigner Res Ctr Phys, Inst Particle & Nucl Phys, Budapest, Hungary.
[Perez, K.] CALTECH, Pasadena, CA 91125 USA.
[Pinamonti, M.] Int Sch Adv Studies SISSA, Trieste, Italy.
[Smirnova, L. N.] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia.
[Yacoob, S.] Univ KwaZulu Natal, Discipline Phys, Durban, South Africa.
RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
RI Staroba, Pavel/G-8850-2014; Kupco, Alexander/G-9713-2014; de Groot,
Nicolo/A-2675-2009; Marcisovsky, Michal/H-1533-2014; Mikestikova,
Marcela/H-1996-2014; Kuday, Sinan/C-8528-2014; Tomasek,
Lukas/G-6370-2014; Svatos, Michal/G-8437-2014; Chudoba,
Jiri/G-7737-2014; Moorhead, Gareth/B-6634-2009; Peleganchuk,
Sergey/J-6722-2014; Bosman, Martine/J-9917-2014; Demirkoz,
Bilge/C-8179-2014; Warburton, Andreas/N-8028-2013; Sukharev,
Andrey/A-6470-2014; Fazio, Salvatore /G-5156-2010; Lee,
Jason/B-9701-2014; Robson, Aidan/G-1087-2011; Smirnova,
Oxana/A-4401-2013; Fabbri, Laura/H-3442-2012; Villa, Mauro/C-9883-2009;
Nozka, Libor/G-5550-2014; Nemecek, Stanislav/G-5931-2014; Kepka,
Oldrich/G-6375-2014; Lokajicek, Milos/G-7800-2014; Jakoubek,
Tomas/G-8644-2014; Anjos, Nuno/I-3918-2013; Kartvelishvili,
Vakhtang/K-2312-2013; Dawson, Ian/K-6090-2013; Solfaroli Camillocci,
Elena/J-1596-2012; Brooks, William/C-8636-2013; Tudorache,
Alexandra/L-3557-2013; Tudorache, Valentina/D-2743-2012; Marti-Garcia,
Salvador/F-3085-2011; Shabalina, Elizaveta/M-2227-2013; Castro,
Nuno/D-5260-2011; Wolters, Helmut/M-4154-2013; De, Kaushik/N-1953-2013;
Snesarev, Andrey/H-5090-2013; Mora Herrera, Maria Clemencia/L-3893-2016;
Maneira, Jose/D-8486-2011; Prokoshin, Fedor/E-2795-2012; KHODINOV,
ALEKSANDR/D-6269-2015; Goncalo, Ricardo/M-3153-2016; Gauzzi,
Paolo/D-2615-2009; O'Shea, Val/G-1279-2010; Solodkov,
Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Yang,
Haijun/O-1055-2015; Monzani, Simone/D-6328-2017; Aguilar Saavedra, Juan
Antonio/F-1256-2016; Vranjes Milosavljevic, Marija/F-9847-2016; Wemans,
Andre/A-6738-2012; Leyton, Michael/G-2214-2016; Jones,
Roger/H-5578-2011; SULIN, VLADIMIR/N-2793-2015; Nechaeva,
Polina/N-1148-2015; Olshevskiy, Alexander/I-1580-2016; Ventura,
Andrea/A-9544-2015; BESSON, NATHALIE/L-6250-2015; Vanadia,
Marco/K-5870-2016; Ippolito, Valerio/L-1435-2016; spagnolo,
stefania/A-6359-2012; Shmeleva, Alevtina/M-6199-2015; Camarri,
Paolo/M-7979-2015; Gavrilenko, Igor/M-8260-2015; Tikhomirov,
Vladimir/M-6194-2015; Chekulaev, Sergey/O-1145-2015; Gorelov,
Igor/J-9010-2015; Gladilin, Leonid/B-5226-2011; Carvalho,
Joao/M-4060-2013; Mashinistov, Ruslan/M-8356-2015; Gonzalez de la Hoz,
Santiago/E-2494-2016; Guo, Jun/O-5202-2015; Gutierrez,
Phillip/C-1161-2011; Mitsou, Vasiliki/D-1967-2009; Joergensen,
Morten/E-6847-2015; Riu, Imma/L-7385-2014; Cabrera Urban,
Susana/H-1376-2015; Mir, Lluisa-Maria/G-7212-2015; Della Pietra,
Massimo/J-5008-2012; Cavalli-Sforza, Matteo/H-7102-2015; Petrucci,
Fabrizio/G-8348-2012; Negrini, Matteo/C-8906-2014; Ferrer,
Antonio/H-2942-2015; Hansen, John/B-9058-2015; Grancagnolo,
Sergio/J-3957-2015; Conde Muino, Patricia/F-7696-2011; Andreazza,
Attilio/E-5642-2011; Boyko, Igor/J-3659-2013; Kuleshov,
Sergey/D-9940-2013; Vanyashin, Aleksandr/H-7796-2013; Ferrando,
James/A-9192-2012; Doyle, Anthony/C-5889-2009; Casadei,
Diego/I-1785-2013; La Rosa, Alessandro/I-1856-2013; Livan,
Michele/D-7531-2012; Moraes, Arthur/F-6478-2010; Smirnov,
Sergei/F-1014-2011
OI Mikestikova, Marcela/0000-0003-1277-2596; Kuday,
Sinan/0000-0002-0116-5494; Tomasek, Lukas/0000-0002-5224-1936; Svatos,
Michal/0000-0002-7199-3383; Moorhead, Gareth/0000-0002-9299-9549;
Peleganchuk, Sergey/0000-0003-0907-7592; Bosman,
Martine/0000-0002-7290-643X; Warburton, Andreas/0000-0002-2298-7315;
Lee, Jason/0000-0002-2153-1519; Smirnova, Oxana/0000-0003-2517-531X;
Fabbri, Laura/0000-0002-4002-8353; Villa, Mauro/0000-0002-9181-8048;
Solfaroli Camillocci, Elena/0000-0002-5347-7764; Brooks,
William/0000-0001-6161-3570; Castro, Nuno/0000-0001-8491-4376; Wolters,
Helmut/0000-0002-9588-1773; De, Kaushik/0000-0002-5647-4489; Mora
Herrera, Maria Clemencia/0000-0003-3915-3170; Maneira,
Jose/0000-0002-3222-2738; Prokoshin, Fedor/0000-0001-6389-5399;
KHODINOV, ALEKSANDR/0000-0003-3551-5808; Goncalo,
Ricardo/0000-0002-3826-3442; Gauzzi, Paolo/0000-0003-4841-5822; O'Shea,
Val/0000-0001-7183-1205; Solodkov, Alexander/0000-0002-2737-8674;
Zaitsev, Alexandre/0000-0002-4961-8368; Monzani,
Simone/0000-0002-0479-2207; Aguilar Saavedra, Juan
Antonio/0000-0002-5475-8920; Vranjes Milosavljevic,
Marija/0000-0003-4477-9733; Wemans, Andre/0000-0002-9669-9500; Leyton,
Michael/0000-0002-0727-8107; Jones, Roger/0000-0002-6427-3513; SULIN,
VLADIMIR/0000-0003-3943-2495; Olshevskiy, Alexander/0000-0002-8902-1793;
Ventura, Andrea/0000-0002-3368-3413; Vanadia, Marco/0000-0003-2684-276X;
Ippolito, Valerio/0000-0001-5126-1620; spagnolo,
stefania/0000-0001-7482-6348; Camarri, Paolo/0000-0002-5732-5645;
Tikhomirov, Vladimir/0000-0002-9634-0581; Gorelov,
Igor/0000-0001-5570-0133; Gladilin, Leonid/0000-0001-9422-8636;
Carvalho, Joao/0000-0002-3015-7821; Mashinistov,
Ruslan/0000-0001-7925-4676; Gonzalez de la Hoz,
Santiago/0000-0001-5304-5390; Guo, Jun/0000-0001-8125-9433; Mitsou,
Vasiliki/0000-0002-1533-8886; Joergensen, Morten/0000-0002-6790-9361;
Riu, Imma/0000-0002-3742-4582; Mir, Lluisa-Maria/0000-0002-4276-715X;
Della Pietra, Massimo/0000-0003-4446-3368; Petrucci,
Fabrizio/0000-0002-5278-2206; Negrini, Matteo/0000-0003-0101-6963;
Ferrer, Antonio/0000-0003-0532-711X; Hansen, John/0000-0002-8422-5543;
Grancagnolo, Sergio/0000-0001-8490-8304; Conde Muino,
Patricia/0000-0002-9187-7478; Andreazza, Attilio/0000-0001-5161-5759;
Boyko, Igor/0000-0002-3355-4662; Kuleshov, Sergey/0000-0002-3065-326X;
Vanyashin, Aleksandr/0000-0002-0367-5666; Ferrando,
James/0000-0002-1007-7816; Doyle, Anthony/0000-0001-6322-6195; La Rosa,
Alessandro/0000-0001-6291-2142; Livan, Michele/0000-0002-5877-0062;
Moraes, Arthur/0000-0002-5157-5686; Smirnov, Sergei/0000-0002-6778-073X
FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; FWF,
Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil;
NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS,
China; MOST, China; NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech
Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark;
Lundbeck Foundation, Denmark; EPLANET, European Union; ERC, European
Union; NSRF, European Union; IN2P3-CNRS, France; CEA-DSM/IRFU, France;
GNSF, Georgia; BMBF, Germany; DFG, Germany; HGF, Germany; MPG, Germany;
AvH Foundation, Germany; GSRT, Greece; NSRF, Greece; ISF, Israel;
MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo Center, Israel;
INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; FOM, Netherlands;
NWO, Netherlands; BRF, Norway; RCN, Norway; MNiSW, Poland; GRICES,
Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia, Russian
Federation; ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR,
Slovakia; ARRS, Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MICINN,
Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland;
SNSF, Switzerland; Cantons of Bern Geneva, Switzerland; NSC, Taiwan;
TAEK, Turkey; STFC, United Kingdom; Royal Society, United Kingdom;
Leverhulme Trust, United Kingdom; DOE, United States of America; NSF,
United States of America; MPO CR, Czech Republic
FX We thank CERN for the very successful operation of the LHC, as well as
the support staff from our institutions without whom ATLAS could not be
operated efficiently. We acknowledge the support of ANPCyT, Argentina;
YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS,
Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI,
Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS,
Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and
Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union;
IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and
AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP
and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST,
Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland;
GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and
ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS
and MIZS, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and
Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva,
Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and
Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.
The crucial computing support from all WLCG partners is acknowledged
gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at
TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France),
KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC
(Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2
facilities worldwide.
NR 65
TC 3
Z9 3
U1 7
U2 149
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 17
PY 2013
VL 87
IS 11
AR 112006
DI 10.1103/PhysRevD.87.112006
PG 22
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 167CU
UT WOS:000320609000001
ER
PT J
AU Chatrchyan, S
Khachatryan, V
Sirunyan, AM
Tumasyan, A
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CA CMS Collaboration
TI Search for narrow resonances using the dijet mass spectrum in pp
collisions at root s=8 TeV
SO PHYSICAL REVIEW D
LA English
DT Article
ID HADRON COLLIDERS; PHENOMENOLOGY; PHYSICS
AB Results are presented of a search for the production of new particles decaying to pairs of partons (quarks, antiquarks, or gluons), in the dijet mass spectrum in proton-proton collisions at root s = 8 TeV. The data sample corresponds to an integrated luminosity of 4.0 fb(-1), collected with the CMS detector at the LHC in 2012. No significant evidence for narrow resonance production is observed. Upper limits are set at the 95% confidence level on the production cross section of hypothetical new particles decaying to quark-quark, quark-gluon, or gluon-gluon final states. These limits are then translated into lower limits on the masses of new resonances in specific scenarios of physics beyond the standard model. The limits reach up to 4.8 TeV, depending on the model, and extend previous exclusions from similar searches performed at lower collision energies. For the first time mass limits are set for the Randall-Sundrum graviton model in the dijet channel.
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[Godinovic, N.; Lelas, D.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia.
[Antunovic, Z.; Kovac, M.] Univ Split, Split, Croatia.
[Brigljevic, V.; Duric, S.; Kadija, K.; Luetic, J.; Mekterovic, D.; Morovic, S.; Tikvica, L.] Rudjer Boskovic Inst, Zagreb, Croatia.
[Attikis, A.; Mavromanolakis, G.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus.
[Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic.
[Assran, Y.; Elgammal, S.; Kamel, A. Ellithi; Awad, A. M. Kuotb; Mahmoud, M. A.; Radi, A.] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt.
[Giammanco, A.; Kadastik, M.; Muentel, M.; Murumaa, M.; Raidal, M.; Rebane, L.; Tiko, A.] NICPB, Tallinn, Estonia.
[Eerola, P.; Fedi, G.; Voutilainen, M.] Univ Helsinki, Dept Phys, Helsinki, Finland.
[Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Peltola, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland.
[Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland.
[Besancon, M.; Choudhury, S.; Couderc, F.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Millischer, L.; Nayak, A.; Rander, J.; Rosowsky, A.; Titov, M.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France.
[Plestina, R.; Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Busson, P.; Charlot, C.; Daci, N.; Dahms, T.; Dalchenko, M.; Dobrzynski, L.; Florent, A.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Naranjo, I. N.; Nguyen, M.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Veelken, C.; Zabi, A.; Bernet, C.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Agram, J. -L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J. -M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Juillot, P.; Le Bihan, A. -C.; Van Hove, P.] Univ Strasbourg, Univ Haute Alsace Mulhouse, CNRS, Inst Pluridisciplinaire Hubert Curien,IN2P3, Strasbourg, France.
[Beauceron, S.; Beaupere, N.; Bondu, O.; Boudoul, G.; Brochet, S.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Gouzevitch, M.; Ille, B.; Kurca, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sgandurra, L.; Sordini, V.; Tschudi, Y.; Verdier, P.; Viret, S.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France.
[Tsamalaidze, Z.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia.
[Autermann, C.; Beranek, S.; Calpas, B.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Wittmer, B.; Zhukov, V.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany.
[Ata, M.; Caudron, J.; Dietz-Laursonn, E.; Duchardt, D.; Erdmann, M.; Fischer, R.; Gueth, A.; Hebbeker, T.; Heidemann, C.; Hoepfner, K.; Klingebiel, D.; Kreuzer, P.; Merschmeyer, M.; Meyer, A.; Olschewski, M.; Padeken, K.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.; Thueer, S.; Weber, M.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany.
[Bontenackels, M.; Cherepanov, V.; Erdogan, Y.; Fluegge, G.; Geenen, H.; Geisler, M.; Ahmad, W. Haj; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Lingemann, J.; Nowack, A.; Nugent, I. M.; Perchalla, L.; Pooth, O.; Sauerland, P.; Stahl, A.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany.
[Aldaya Martin, M.; Asin, I.; Bartosik, N.; Behr, J.; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Burgmeier, A.; Cakir, A.; Calligaris, L.; Campbell, A.; Castro, E.; Costanza, F.; Dammann, D.; Pardos, C. Diez; Dorland, T.; Eckerlin, G.; Eckstein, D.; Flucke, G.; Geiser, A.; Glushkov, I.; Gunnellini, P.; Habib, S.; Hauk, J.; Hellwig, G.; Jung, H.; Kasemann, M.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Leonard, J.; Lohmann, W.; Lutz, B.; Mankel, R.; Marfin, I.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Naumann-Emme, S.; Novgorodova, O.; Nowak, F.; Olzem, J.; Perrey, H.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Ribeiro Cipriano, P. M.; Riedl, C.; Ron, E.; Rosin, M.; Salfeld-Nebgen, J.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany.
[Blobel, V.; Enderle, H.; Erfle, J.; Gebbert, U.; Goerner, M.; Gosselink, M.; Haller, J.; Hermanns, T.; Hoeing, R. S.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Peiffer, T.; Pietsch, N.; Rathjens, D.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schmidt, A.; Schroeder, M.; Schum, T.; Seidel, M.; Sibille, J.; Sola, V.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Vanelderen, L.] Univ Hamburg, Hamburg, Germany.
[Barth, C.; Baus, C.; Berger, J.; Boeser, C.; Chwalek, T.; De Boer, W.; Descroix, A.; Dierlamm, A.; Feindt, M.; Guthoff, M.; Hackstein, C.; Hartmann, F.; Hauth, T.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Husemann, U.; Katkov, I.; Komaragiri, J. R.; Lobelle Pardo, P.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Nuernberg, A.; Oberst, O.; Oehler, A.; Ott, J.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Roecker, S.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Ulrich, R.; Wagner-Kuhr, J.; Wayand, S.; Weiler, T.; Zeise, M.] Univ Karlsruhe, Inst Expt Kernphys, Karlsruhe, Germany.
[Anagnostou, G.; Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Markou, A.; Markou, C.; Ntomari, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece.
[Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.] Univ Athens, Athens, Greece.
[Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.] Univ Ioannina, GR-45110 Ioannina, Greece.
[Bencze, G.; Hajdu, C.; Hidas, P.; Horvath, D.; Sikler, F.; Veszpremi, V.; Vesztergombi, G.; Zsigmond, A. J.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary.
[Beni, N.; Czellar, S.; Molnar, J.; Palinkas, J.; Szillasi, Z.] Inst Nucl Res ATOMKI, Debrecen, Hungary.
[Karancsi, J.; Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, H-4012 Debrecen, Hungary.
[Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Kaur, M.; Mehta, M. Z.; Mittal, M.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, J. B.] Panjab Univ, Chandigarh 160014, India.
[Kumar, Ashok; Kumar, Arun; Ahuja, S.; Bhardwaj, A.; Choudhary, B. C.; Malhotra, S.; Naimuddin, M.; Ranjan, K.; Saxena, P.; Sharma, V.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Banerjee, S.; Bhattacharya, S.; Chatterjee, K.; Dutta, S.; Gomber, B.; Jain, Sa.; Jain, Sh.; Khurana, R.; Modak, A.; Mukherjee, S.; Roy, D.; Sarkar, S.; Sharan, M.] Saha Inst Nucl Phys, Kolkata, India.
[Abdulsalam, A.; Dutta, D.; Kailas, S.; Kumar, V.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India.
[Aziz, T.; Chatterjee, R. M.; Ganguly, S.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Parida, B.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India.
[Banerjee, S.; Dugad, S.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India.
[Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Hesari, H.; Jafari, A.; Khakzad, M.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res Fundamental Sci IPM, Tehran, Iran.
[Abbrescia, M.; Barbone, L.; Calabria, C.; Chhibra, S. S.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Maggi, G.; Maggi, M.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Pugliese, G.; Selvaggi, G.; Silvestris, L.; Singh, G.; Venditti, R.; Verwilligen, P.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Abbrescia, M.; Barbone, L.; Calabria, C.; Chhibra, S. S.; De Palma, M.; Marangelli, B.; Nuzzo, S.; Pompili, A.; Selvaggi, G.; Singh, G.; Venditti, R.] Univ Bari, Bari, Italy.
[Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.] Politecn Bari, Bari, Italy.
[Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Grandi, C.; Guiducci, L.; Marcellini, S.; Masetti, G.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Tosi, N.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy.
[Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Fasanella, D.; Guiducci, L.; Meneghelli, M.; Navarria, F. L.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Tosi, N.; Travaglini, R.] Univ Bologna, Bologna, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy.
[Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy.
[Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy.
[Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Tropiano, A.] Univ Florence, Florence, Italy.
[Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Fabbricatore, P.; Musenich, R.; Tosi, S.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Tosi, S.] Univ Genoa, Genoa, Italy.
[Benaglia, A.; De Guio, F.; Di Matteo, L.; Fiorendi, S.; Gennai, S.; Ghezzi, A.; Lucchini, M. T.; Malvezzi, S.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy.
[De Guio, F.; Di Matteo, L.; Fiorendi, S.; Ghezzi, A.; Manzoni, R. A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy.
[Buontempo, S.; Cavallo, N.; De Cosa, A.; Dogangun, O.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Meola, S.; Merola, M.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy.
[De Cosa, A.; Dogangun, O.; Iorio, A. O. M.] Univ Naples Federico II, Naples, Italy.
[Cavallo, N.; Fabozzi, F.] Univ Basilicata Potenza, Naples, Italy.
[Meola, S.] Univ G Marconi Roma, Naples, Italy.
[Azzi, P.; Bacchetta, N.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Galanti, M.; Gasparini, F.; Gasparini, U.; Gozzelino, A.; Kanishchev, K.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Ventura, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy.
[Bisello, D.; Branca, A.; Carlin, R.; Galanti, M.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy.
[Kanishchev, K.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy.
[Gabusi, M.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Gabusi, M.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy.
[Biasini, M.; Bilei, G. M.; Fano, L.; Lariccia, P.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Saha, A.; Santocchia, A.; Spiezia, A.; Taroni, S.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Biasini, M.; Fano, L.; Lariccia, P.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Spiezia, A.; Taroni, S.] Univ Perugia, I-06100 Perugia, Italy.
[Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Rizzi, A.; Serban, A. T.; Spagnolo, P.; Squillacioti, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Fiori, F.; Messineo, A.; Rizzi, A.; Tonelli, G.] Univ Pisa, Pisa, Italy.
[Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy.
[Barone, L.; Cavallari, F.; Del Re, D.; Diemoz, M.; Fanelli, C.; Grassi, M.; Longo, E.; Meridiani, P.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Paramatti, R.; Rahatlou, S.; Soffi, L.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Barone, L.; Del Re, D.; Fanelli, C.; Grassi, M.; Longo, E.; Micheli, F.; Nourbakhsh, S.; Organtini, G.; Rahatlou, S.; Soffi, L.] Univ Rome, Rome, Italy.
[Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Cartiglia, N.; Casasso, S.; Costa, M.; Demaria, N.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Amapane, N.; Argiro, S.; Casasso, S.; Costa, M.; Migliore, E.; Monaco, V.; Potenza, A.; Romero, A.; Sacchi, R.; Solano, A.] Univ Turin, Turin, Italy.
[Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy.
[Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Marone, M.; Montanino, D.; Penzo, A.; Schizzi, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy.
[Candelise, V.; Della Ricca, G.; Marone, M.; Montanino, D.; Schizzi, A.] Univ Trieste, Trieste, Italy.
[Kim, T. Y.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea.
[Chang, S.; Kim, D. H.; Kim, G. N.; Kong, D. J.; Park, H.; Son, D. C.; Kamon, T.] Kyungpook Natl Univ, Taegu, South Korea.
[Kim, J. Y.; Kim, Zero J.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea.
[Choi, S.; Gyun, D.; Hong, B.; Jo, M.; Kim, H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Roh, Y.] Korea Univ, Seoul, South Korea.
[Choi, M.; Kim, J. H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea.
[Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea.
[Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Juodagalvis, A.] Vilnius State Univ, Vilnius, Lithuania.
[Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico.
[Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico.
[Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.
[Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand.
[Bell, A. J.; Butler, P. H.; Doesburg, R.; Reucroft, S.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand.
[Ahmad, M.; Asghar, M. I.; Butt, J.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.
[Bialkowska, H.; Boimska, B.; Frueboes, T.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Natl Ctr Nucl Res, Otwock, Poland.
[Brona, G.; Bunkowski, K.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.; Misiura, M.; Wolszczak, W.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland.
[Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Seixas, J.; Varela, J.; Vischia, P.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.
[Bunin, P.; Gavrilenko, M.; Golutvin, I.; Karjavin, V.; Konoplyanikov, V.; Kozlov, G.; Lanev, A.; Malakhov, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Shulha, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia.
[Evstyukhin, S.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Tlisov, D.; Toropin, A.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia.
[Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kossov, M.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Shreyber, I.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia.
[Belyaev, A.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Klyukhin, V.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Popov, A.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia.
[Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Adzic, P.; Djordjevic, M.; Ekmedzic, M.; Krpic, D.; Milosevic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Aguilar-Benitez, M.; Maestre, J. Alcaraz; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain.
[Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain.
[Brun, H.; Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Piedra Gomez, J.] Univ Oviedo, Oviedo, Spain.
[Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Graziano, A.; Jorda, C.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain.
[Rabady, D.; Genchev, V.; Iaydjiev, P.; Chierici, R.; Lingemann, J.; Guthoff, M.; Hartmann, F.; Hauth, T.; Mohanty, A. K.; Calabria, C.; De Filippis, N.; Meneghelli, M.; Di Matteo, L.; Gennai, S.; Lucchini, M. T.; De Cosa, A.; Meola, S.; Paolucci, P.; Bacchetta, N.; Branca, A.; D'Agnolo, R. T.; Fiori, F.; Squillacioti, P.; Grassi, M.; Meridiani, P.; Mariotti, C.; Musich, M.; Cossutti, F.; Marone, M.; Seixas, J.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Bachtis, M.; Baillon, P.; Ball, A. H.; Barney, D.; Bendavid, J.; Benitez, J. F.; Bernet, C.; Bianchi, G.; Bloch, P.; Bocci, A.; Bonato, A.; Botta, C.; Breuker, H.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Coarasa Perez, J. A.; d'Enterria, D.; Dabrowski, A.; De Roeck, A.; De Visscher, S.; Di Guida, S.; Dobson, M.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Eugster, J.; Frisch, B.; Funk, W.; Georgiou, G.; Giffels, M.; Gigi, D.; Gill, K.; Giordano, D.; Girone, M.; Giunta, M.; Glege, F.; Gomez-Reino Garrido, R.; Govoni, P.; Gowdy, S.; Guida, R.; Hammer, J.; Hansen, M.; Harris, P.; Hartl, C.; Harvey, J.; Hegner, B.; Hinzmann, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Kousouris, K.; Krajczar, K.; Lecoq, P.; Lee, Y. -J.; Lenzi, P.; Lourenco, C.; Magini, N.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mulders, M.; Musella, P.; Nesvold, E.; Orsini, L.; Palencia Cortezon, E.; Perez, E.; Perrozzi, L.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Rodrigues Antunes, J.; Rolandi, G.; Rovelli, C.; Rovere, M.; Sakulin, H.; Santanastasio, F.; Schaefer, C.; Schwick, C.; Segoni, I.; Sekmen, S.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Tsirou, A.; Veres, G. I.; Vlimant, J. R.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.] Paul Scherrer Inst, Villigen, Switzerland.
[Bachmair, F.; Baeni, L.; Bortignon, P.; Buchmann, M. A.; Casal, B.; Chanon, N.; Deisher, A.; Dissertori, G.; Dittmar, M.; Donega, M.; Duenser, M.; Eller, P.; Freudenreich, K.; Grab, C.; Hits, D.; Lecomte, P.; Lustermann, W.; Marini, A. C.; del Arbol, P. Martinez Ruiz; Mohr, N.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pandolfi, F.; Pape, L.; Pauss, F.; Peruzzi, M.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, H. A.; Wehrli, L.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland.
[Amsler, C.; Chiochia, V.; Favaro, C.; Rikova, M. Ivova; Kilminster, B.; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Snoek, H.; Tupputi, S.; Verzetti, M.] Univ Zurich, Zurich, Switzerland.
[Cardaci, M.; Chang, Y. H.; Chen, K. H.; Ferro, C.; Li, S. W.; Lin, W.; Lu, Y. J.; Singh, A. P.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan.
[Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Dietz, C.; Grundler, U.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Majumder, D.; Petrakou, E.; Shi, X.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan.
[Asavapibhop, B.; Simili, E.; Srimanobhas, N.; Suwonjandee, N.] Chulalongkorn Univ, Bangkok, Thailand.
[Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Karapinar, G.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Vergili, M.] Cukurova Univ, Adana, Turkey.
[Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey.
[Bahtiyar, H.; Barlas, E.; Cankocak, K.; Gunaydin, Y. O.; Vardarli, F. I.; Yucel, M.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey.
[Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine.
[Brooke, J. J.; Clement, E.; Cussans, D.; Flacher, H.; Frazier, R.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Williams, T.] Univ Bristol, Bristol, Avon, England.
[Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Bainbridge, R.; Ball, G.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Dauncey, P.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Kenzie, M.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Pela, J.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rose, A.; Seez, C.; Sharp, P.; Sparrow, A.; Stoye, M.; Tapper, A.; Vazquez Acosta, M.; Virdee, T.; Wakefield, S.; Wardle, N.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leggat, D.; Leslie, D.; Martin, W.; Reid, I. D.; Symonds, P.; Teodorescu, L.; Turner, M.] Brunel Univ, Uxbridge UB8 3PH, Middx, England.
[Hatakeyama, K.; Liu, H.; Scarborough, T.] Baylor Univ, Waco, TX 76798 USA.
[Charaf, O.; Cooper, S. I.; Henderson, C.; Rumerio, P.] Univ Alabama, Tuscaloosa, AL USA.
[Avetisyan, A.; Bose, T.; Fantasia, C.; Heister, A.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; St John, J.; Sulak, L.] Boston Univ, Boston, MA 02215 USA.
[Alimena, J.; Bhattacharya, S.; Christopher, G.; Cutts, D.; Demiragli, Z.; Ferapontov, A.; Garabedian, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Laird, E.; Landsberg, G.; Luk, M.; Narain, M.; Segala, M.; Sinthuprasith, T.; Speer, T.] Brown Univ, Providence, RI 02912 USA.
[Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Caulfield, M.; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Gardner, M.; Houtz, R.; Ko, W.; Kopecky, A.; Lander, R.; Mall, O.; Miceli, T.; Nelson, R.; Pellett, D.; Ricci-Tam, F.; Rutherford, B.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Vasquez Sierra, R.; Yohay, R.] Univ Calif Davis, Davis, CA 95616 USA.
[Andreev, V.; Cline, D.; Cousins, R.; Duris, J.; Erhan, S.; Everaerts, P.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Rakness, G.; Schlein, P.; Traczyk, P.; Valuev, V.; Weber, M.] Univ Calif Los Angeles, Los Angeles, CA USA.
[Babb, J.; Clare, R.; Dinardo, M. E.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Andrews, W.; Branson, J. G.; Cerati, G. B.; Cittolin, S.; Evans, D.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Macneill, I.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pieri, M.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; George, C.; Golf, F.; Incandela, J.; Justus, C.; Kalavase, P.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Magana Villalba, R.; Mccoll, N.; Pavlunin, V.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Dias, F. A.; Dubinin, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Di Marco, E.; Duarte, J.; Gataullin, M.; Kcira, D.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Spiropulu, M.; Timciuc, V.; Veverka, J.; Wilkinson, R.; Xie, S.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA.
[Azzolini, V.; Calamba, A.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Liu, Y. F.; Paulini, M.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Cumalat, J. P.; Drell, B. R.; Ford, W. T.; Gaz, A.; Luiggi Lopez, E.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA.
[Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Mirman, N.; Kaufman, G. Nicolas; Patterson, J. R.; Ryd, A.; Salvati, E.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Tucker, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA.
[Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA.
[Abdullin, S.; Albrow, M.; Anderson, J.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Burkett, K.; Butler, J. N.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gao, Y.; Green, D.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jindariani, S.; Johnson, M.; Joshi, U.; Klima, B.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Linacre, J.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Martinez Outschoorn, V. I.; Maruyama, S.; Mason, D.; McBride, P.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Taylor, L.; Tkaczyk, S.; Tran, N. V.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Cheng, T.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Milenovic, P.; Mitselmakher, G.; Muniz, L.; Remington, R.; Rinkevicius, A.; Skhirtladze, N.; Snowball, M.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA.
[Gaultney, V.; Hewamanage, S.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA.
[Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Veeraraghavan, V.; Weinberg, M.] Florida State Univ, Tallahassee, FL 32306 USA.
[Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.; Yumiceva, F.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Adams, M. R.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Bucinskaite, I.; Callner, J.; Cavanaugh, R.; Evdokimov, O.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; O'Brien, C.; Silkworth, C.; Strom, D.; Turner, P.; Varelas, N.] Univ Illinois, Chicago, IL USA.
[Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Dilsiz, K.; Duru, F.; Griffiths, S.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Ogul, H.; Onel, Y.; Ozok, F.; Sen, S.; Tan, P.; Tiras, E.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA.
[Barnett, B. A.; Blumenfeld, B.; Bolognesi, S.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Swartz, M.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA.
[Baringer, P.; Bean, A.; Benelli, G.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Stringer, R.; Tinti, G.; Wood, J. S.] Univ Kansas, Lawrence, KS 66045 USA.
[Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.] Kansas State Univ, Manhattan, KS 66506 USA.
[Gronberg, J.; Lange, D.; Rebassoo, F.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Baden, A.; Calvert, B.; Eno, S. C.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Kolberg, T.; Lu, Y.; Marionneau, M.; Mignerey, A. C.; Pedro, K.; Peterman, A.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.] Univ Maryland, College Pk, MD 20742 USA.
[Apyan, A.; Bauer, G.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Gomez Ceballos, G.; Goncharov, M.; Kim, Y.; Klute, M.; Levin, A.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Wyslouch, B.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.; Zhukova, V.] MIT, Cambridge, MA 02139 USA.
[Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Kao, S. C.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA.
[Cremaldi, L. M.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.] Univ Mississippi, Oxford, MS USA.
[Avdeeva, E.; Bloom, K.; Bose, S.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kravchenko, I.; Lazo-Flores, J.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA.
[Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Rappoccio, S.; Wan, Z.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Alverson, G.; Barberis, E.; Baumgartel, D.; Chasco, M.; Haley, J.; Nash, D.; Orimoto, T.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA.
[Anastassov, A.; Hahn, K. A.; Kubik, A.; Lusito, L.; Mucia, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA.
[Berry, D.; Brinkerhoff, A.; Chan, K. M.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Planer, M.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Wolf, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Antonelli, L.; Bylsma, B.; Durkin, L. S.; Hill, C.; Hughes, R.; Kotov, K.; Ling, T. Y.; Puigh, D.; Rodenburg, M.; Smith, G.; Vuosalo, C.; Williams, G.; Winer, B. L.] Ohio State Univ, Columbus, OH 43210 USA.
[Berry, E.; Elmer, P.; Halyo, V.; Hebda, P.; Hegeman, J.; Hunt, A.; Jindal, P.; Koay, S. A.; Pegna, D. Lopes; Lujan, P.; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Raval, A.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zenz, S. C.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA.
[Brownson, E.; Lopez, A.; Mendez, H.; Ramirez Vargas, J. E.] Univ Puerto Rico, Mayaguez, PR USA.
[Alagoz, E.; Barnes, V. E.; Benedetti, D.; Bolla, G.; Bortoletto, D.; De Mattia, M.; Everett, A.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Marono, M. Vidal; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA.
[Guragain, S.; Parashar, N.] Purdue Univ Calumet, Hammond, IN USA.
[Adair, A.; Akgun, B.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Li, W.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA.
[Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Ferbel, T.; Garcia-Bellido, A.; Goldenzweig, P.; Han, J.; Harel, A.; Miner, D. C.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY USA.
[Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY 10021 USA.
[Arora, S.; Barker, A.; Chou, J. P.; Contreras-Campana, C.; Contreras-Campana, E.; Duggan, D.; Ferencek, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Lath, A.; Panwalkar, S.; Park, M.; Patel, R.; Rekovic, V.; Robles, J.; Rose, K.; Salur, S.; Schnetzer, S.; Seitz, C.; Somalwar, S.; Stone, R.; Thomas, S.; Walker, M.] Rutgers State Univ, Piscataway, NJ USA.
[Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA.
[Eusebi, R.; Flanagan, W.; Gilmore, J.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Perloff, A.; Roe, J.; Safonov, A.; Sakuma, T.; Sengupta, S.; Suarez, I.; Tatarinov, A.; Toback, D.] Texas A&M Univ, College Stn, TX USA.
[Akchurin, N.; Damgov, J.; Dragoiu, C.; Dudero, P. R.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Volobouev, I.] Texas Tech Univ, Lubbock, TX 79409 USA.
[Appelt, E.; Delannoy, A. G.; Florez, C.; Greene, S.; Gurrola, A.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sharma, M.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37235 USA.
[Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Wood, J.] Univ Virginia, Charlottesville, VA USA.
[Gollapinni, S.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Sakharov, A.] Wayne State Univ, Detroit, MI USA.
[Anderson, M.; Belknap, D. A.; Borrello, L.; Carlsmith, D.; Cepeda, M.; Dasu, S.; Friis, E.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Loveless, R.; Mohapatra, A.; Mozer, M. U.; Ojalvo, I.; Palmonari, F.; Pierro, G. A.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.] Univ Wisconsin, Madison, WI USA.
[Fabjan, C.; Fruehwirth, R.; Jeitler, M.; Krammer, M.; Wulz, C. -E.] Vienna Univ Technol, A-1040 Vienna, Austria.
[Chinellato, J.; Tonelli Manganote, E. J.] Univ Estadual Campinas, Campinas, SP, Brazil.
[Assran, Y.] Suez Canal Univ, Suez, Egypt.
[Elgammal, S.] Zewail City Sci & Technol, Zewail, Egypt.
[Kamel, A. Ellithi] Cairo Univ, Cairo, Egypt.
[Awad, A. M. Kuotb; Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt.
[Radi, A.] British Univ Egypt, Cairo, Egypt.
[Busson, P.] Natl Ctr Nucl Res, Otwock, Poland.
[Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.] Univ Haute Alsace, Mulhouse, France.
[Tsamalaidze, Z.] Joint Inst Nucl Res, Dubna, Russia.
[Zhukov, V.; Katkov, I.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany.
[Sibille, J.] Univ Kansas, Lawrence, KS 66045 USA.
[Horvath, D.] Inst Nucl Res ATOMKI, Debrecen, Hungary.
[Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary.
[Guchait, M.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India.
[Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India.
[Arfaei, H.; Fahim, A.] Sharif Univ Technol, Tehran, Iran.
[Etesami, S. M.] Isfahan Univ Technol, Esfahan, Iran.
[Hashemi, M.] Shiraz Univ, Shiraz, Iran.
[Safarzadeh, B.] Islamic Azad Univ, Sci & Res Branch, Plasma Phys Res Ctr, Tehran, Iran.
[Colafranceschi, S.; Serban, A. T.] Univ Rome, Fac Ingn, Rome, Italy.
[Martini, L.] Univ Siena, I-53100 Siena, Italy.
Univ Bucharest, Fac Phys, Bucharest, Romania.
[Adzic, P.; Krpic, D.; Milenovic, P.; Bilki, B.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia.
[Felcini, M.] Univ Calif Los Angeles, Los Angeles, CA USA.
Scuola Normale Super Pisa, Pisa, Italy.
Sezione Ist Nazl Fis Nucl, Pisa, Italy.
Ist Nazl Fis Nucl, Sez Roma, Rome, Italy.
[Sphicas, P.] Univ Athens, Athens, Greece.
[Worm, S. D.; Newbold, D. M.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland.
[Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Amsler, C.] Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.
[Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey.
[Cerci, S.; Cerci, D. Sunar; Tali, B.] Adiyaman Univ, Adiyaman, Turkey.
[Karapinar, G.] Izmir Inst Technol, Izmir, Turkey.
[Ozturk, S.] Univ Iowa, Iowa City, IA USA.
[Sogut, K.] Mersin Univ, Mersin, Turkey.
[Isildak, B.] Ozyegin Univ, Istanbul, Turkey.
[Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey.
[Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey.
[Sonmez, N.] Ege Univ, Izmir, Turkey.
[Bahtiyar, H.; Ozok, F.] Mimar Sinan Univ, Istanbul, Turkey.
[Gunaydin, Y. O.] Kahramanmaras Sutcu Imam Univ, TR-46050 Kahramanmaras, Turkey.
[Basso, L.; Belyaev, A.] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.
[Pioppi, M.] Univ Perugia, Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy.
[Wasserbaech, S.] Utah Valley Univ, Orem, UT USA.
[Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia.
[Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia.
[Bilki, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey.
RP Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
RI Santoro, Alberto/E-7932-2014; Ligabue, Franco/F-3432-2014; Wulz,
Claudia-Elisabeth/H-5657-2011; Codispoti, Giuseppe/F-6574-2014;
Montanari, Alessandro/J-2420-2012; Gribushin, Andrei/J-4225-2012;
Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz,
Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa,
Isabel/K-5184-2014; Gonzalez Suarez, Rebeca/L-6128-2014; Markina,
Anastasia/E-3390-2012; Dudko, Lev/D-7127-2012; Dermenev,
Alexander/M-4979-2013; Tinoco Mendes, Andre David/D-4314-2011; Dogangun,
Oktay/L-9252-2013; Wolszczak, Weronika/N-3113-2013; Marlow,
Daniel/C-9132-2014; de Jesus Damiao, Dilson/G-6218-2012; Janssen,
Xavier/E-1915-2013; Novaes, Sergio/D-3532-2012; Bartalini,
Paolo/E-2512-2014; Alves, Gilvan/C-4007-2013; Zalewski,
Piotr/H-7335-2013; Lokhtin, Igor/D-7004-2012; Mundim, Luiz/A-1291-2012;
Kodolova, Olga/D-7158-2012; Tinti, Gemma/I-5886-2013; Ivanov,
Andrew/A-7982-2013; Petrushanko, Sergey/D-6880-2012; Liu,
Sheng/K-2815-2013; Zhukov, Valery/K-3615-2013; Venturi,
Andrea/J-1877-2012; Manganote, Edmilson/K-8251-2013; Wimpenny,
Stephen/K-8848-2013; Rolandi, Luigi (Gigi)/E-8563-2013; Sguazzoni,
Giacomo/J-4620-2015; Inst. of Physics, Gleb Wataghin/A-9780-2017;
Lazzizzera, Ignazio/E-9678-2015; Menasce, Dario Livio/A-2168-2016;
Bargassa, Pedrame/O-2417-2016; Kirakosyan, Martin/N-2701-2015; Gulmez,
Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Vilela Pereira,
Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad,
Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh,
Junghwan/Q-3720-2016; Ruiz, Alberto/E-4473-2011; Govoni,
Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014;
Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov,
Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; TUVE',
Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce,
Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Della Ricca,
Giuseppe/B-6826-2013; Tomei, Thiago/E-7091-2012; Azarkin,
Maxim/N-2578-2015; Dubinin, Mikhail/I-3942-2016; Paganoni,
Marco/A-4235-2016; D'Alessandro, Raffaello/F-5897-2015; Belyaev,
Alexander/F-6637-2015; Stahl, Achim/E-8846-2011; Trocsanyi,
Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose
Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; My,
Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Ragazzi,
Stefano/D-2463-2009; Hopfner, Karl-Peter/B-6864-2014; Rovelli,
Tiziano/K-4432-2015; Calvo Alamillo, Enrique/L-1203-2014; Paulini,
Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Ferguson,
Thomas/O-3444-2014; Benussi, Luigi/O-9684-2014; Leonidov,
Andrey/P-3197-2014; vilar, rocio/P-8480-2014; Dahms,
Torsten/A-8453-2015; da Cruz e Silva, Cristovao/K-7229-2013; Grandi,
Claudio/B-5654-2015; Raidal, Martti/F-4436-2012; Bernardes, Cesar
Augusto/D-2408-2015; VARDARLI, Fuat Ilkehan/B-6360-2013; Sen,
Sercan/C-6473-2014
OI Ligabue, Franco/0000-0002-1549-7107; Wulz,
Claudia-Elisabeth/0000-0001-9226-5812; Codispoti,
Giuseppe/0000-0003-0217-7021; Montanari, Alessandro/0000-0003-2748-6373;
Cerrada, Marcos/0000-0003-0112-1691; Scodellaro,
Luca/0000-0002-4974-8330; Gonzalez Suarez, Rebeca/0000-0002-6126-7230;
Dudko, Lev/0000-0002-4462-3192; Tinoco Mendes, Andre
David/0000-0001-5854-7699; Dogangun, Oktay/0000-0002-1255-2211; de Jesus
Damiao, Dilson/0000-0002-3769-1680; Novaes, Sergio/0000-0003-0471-8549;
Mundim, Luiz/0000-0001-9964-7805; Ivanov, Andrew/0000-0002-9270-5643;
Wimpenny, Stephen/0000-0003-0505-4908; Benaglia, Andrea
Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235;
Ciulli, Vitaliano/0000-0003-1947-3396; Fiorendi,
Sara/0000-0003-3273-9419; Martelli, Arabella/0000-0003-3530-2255; Gonzi,
Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538; Heath,
Helen/0000-0001-6576-9740; Attia Mahmoud, Mohammed/0000-0001-8692-5458;
Bilki, Burak/0000-0001-9515-3306; Lloret Iglesias,
Lara/0000-0002-0157-4765; Rolandi, Luigi (Gigi)/0000-0002-0635-274X;
Sguazzoni, Giacomo/0000-0002-0791-3350; Casarsa,
Massimo/0000-0002-1353-8964; Diemoz, Marcella/0000-0002-3810-8530;
Tricomi, Alessia Rita/0000-0002-5071-5501; Heredia De La Cruz,
Ivan/0000-0002-8133-6467; Ghezzi, Alessio/0000-0002-8184-7953; bianco,
stefano/0000-0002-8300-4124; Demaria, Natale/0000-0003-0743-9465; Vieira
de Castro Ferreira da Silva, Pedro Manuel/0000-0002-5725-041X;
Lazzizzera, Ignazio/0000-0001-5092-7531; Bean,
Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo,
Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619;
Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario
Livio/0000-0002-9918-1686; Bargassa, Pedrame/0000-0001-8612-3332;
Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842;
Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder,
Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie,
Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh,
Junghwan/0000-0002-1129-2083; Ruiz, Alberto/0000-0002-3639-0368; Govoni,
Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan,
Efe/0000-0001-5732-7950; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae
Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix,
Josep/0000-0003-2688-8047; Della Ricca, Giuseppe/0000-0003-2831-6982;
Tomei, Thiago/0000-0002-1809-5226; Dubinin, Mikhail/0000-0002-7766-7175;
Paganoni, Marco/0000-0003-2461-275X; D'Alessandro,
Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408;
Stahl, Achim/0000-0002-8369-7506; Trocsanyi, Zoltan/0000-0002-2129-1279;
Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose
Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; My,
Salvatore/0000-0002-9938-2680; Matorras, Francisco/0000-0003-4295-5668;
Ragazzi, Stefano/0000-0001-8219-2074; Hopfner,
Karl-Peter/0000-0002-4528-8357; Rovelli, Tiziano/0000-0002-9746-4842;
Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini,
Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023;
Ferguson, Thomas/0000-0001-5822-3731; Benussi,
Luigi/0000-0002-2363-8889; Dahms, Torsten/0000-0003-4274-5476; Grandi,
Claudio/0000-0001-5998-3070; Sen, Sercan/0000-0001-7325-1087
FU BMWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq
(Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MEYS
(Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS
(Colombia); MSES (Croatia); RPF (Cyprus); MoER (Estonia) [SF0690030s09];
ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP
(Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG
(Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary);
DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF
(Republic of Korea); WCU (Republic of Korea); LAS (Lithuania); CINVESTAV
(Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MSI (New
Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal);
JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR
(Uzbekistan); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR
(Russia); MSTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding
Agencies (Switzerland); NSC (Taipei); ThEPCenter (Thailand); IPST
(Thailand); NSTDA (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU
(Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA)
FX We congratulate our colleagues in the CERN accelerator departments for
the excellent performance of the LHC and thank the technical and
administrative staffs at CERN and at other CMS institutes for their
contributions to the success of the CMS effort. In addition, we
gratefully acknowledge the computing centers and personnel of the
Worldwide LHC Computing Grid for delivering so effectively the computing
infrastructure essential to our analyses. Finally, we acknowledge the
enduring support for the construction and operation of the LHC and the
CMS detector provided by the following funding agencies: BMWF and FWF
(Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP
(Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China);
COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09
and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and
CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA
and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN
(Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV,
CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC
(Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia,
Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR
(Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies
(Switzerland); NSC (Taipei); ThEPCenter, IPST and NSTDA (Thailand);
TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE
and NSF (USA).
NR 37
TC 32
Z9 32
U1 5
U2 110
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 17
PY 2013
VL 87
IS 11
AR 114015
DI 10.1103/PhysRevD.87.114015
PG 16
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 167CU
UT WOS:000320609000005
ER
PT J
AU Turner, JJ
Nelson, J
Huang, XJ
Steinbrener, J
Jacobsen, C
AF Turner, Joshua J.
Nelson, Johanna
Huang, Xiaojing
Steinbrener, Jan
Jacobsen, Chris
TI Lensless imaging of nanoporous glass with soft X-rays
SO PHYSICS LETTERS A
LA English
DT Article
DE Coherence; X-ray scattering; Phase retrieval; Nanoporosity
ID DIFFRACTION MICROSCOPY; PHASE RETRIEVAL; VYCOR GLASS; RECONSTRUCTION;
SPECIMENS; LASER
AB Coherent soft X-ray diffraction has been used to image nanoporous glass structure in two dimensions using different methods. The merit of the reconstructions was judged using a new method of Fourier phase correlation with a final, refined image. The porous structure was found to have a much larger average size then previously believed. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Turner, Joshua J.; Nelson, Johanna; Huang, Xiaojing; Steinbrener, Jan; Jacobsen, Chris] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA.
[Turner, Joshua J.] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA.
[Nelson, Johanna] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA.
[Huang, Xiaojing] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
RP Turner, JJ (reprint author), SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA.
EM joshuat@slac.stanford.edu
RI Jacobsen, Chris/E-2827-2015; Nelson Weker, Johanna/J-4159-2015
OI Jacobsen, Chris/0000-0001-8562-0353; Nelson Weker,
Johanna/0000-0001-6856-3203
FU Division of Materials Sciences and Engineering, Office of Basic Energy
Sciences, at the Department of Energy [DE-FG02-07ER46128]
FX We gratefully acknowledge D. Shapiro for help with some of the analysis
and S. Boutet, J. Kirz, B. Larson, C. Holzner, and S. Marchesini for
helpful discussions with this manuscript. The experiment was supported
through the Division of Materials Sciences and Engineering, Office of
Basic Energy Sciences, at the Department of Energy for support of X-ray
diffraction microscopy methods and instrumentation development under
contract DE-FG02-07ER46128.
NR 27
TC 1
Z9 1
U1 0
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9601
J9 PHYS LETT A
JI Phys. Lett. A
PD JUN 17
PY 2013
VL 377
IS 15
BP 1150
EP 1153
DI 10.1016/j.physleta.2013.02.005
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 124FI
UT WOS:000317448800014
ER
PT J
AU Marvel, K
Ivanova, D
Taylor, KE
AF Marvel, K.
Ivanova, D.
Taylor, K. E.
TI Scale space methods for climate model analysis
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE metrics; diagnostics; model evaluation; multiscale analysis
ID PRECIPITATION; SIMULATION; RESOLUTION; PERFORMANCE; DIFFUSION; FEATURES;
SYSTEM; KERNEL; IMAGES
AB In this paper, we introduce methods for evaluating climate model performance across spatial scales. These techniques are based on the scale space framework widely used in the image processing and computer vision communities. We discuss why the diffusion equation on the sphere provides a particularly attractive means of smoothing two-dimensional maps of global climate data. We establish that no structure is introduced into a map as an artifact of the smoothing procedure. This allows for the comparison of models and observations at multiple scales. As a test case for these methods, we compare the ability of high- and low-resolution versions of the Community Climate System Model (CCSM) to simulate the seasonal climatologies of surface air temperature (TAS), sea level pressure (PSL), and total precipitation rate (PR). For TAS, we find that the high-resolution model is better able to capture the boreal summer (JJA) climatological pattern at fine scales, although there is no such improvement in winter (DJF). We find the performances of the high- and low-resolution models to be similarly capable of capturing the summertime sea level pressure climatology at all scales. However, the high-resolution model PSL climatology is degraded for DJF, especially at larger scales. For both JJA and DJF precipitation climatologies, we find larger precipitation errors in the high-resolution model at the finest scales; however, performance at larger scales is improved.
C1 [Marvel, K.; Ivanova, D.; Taylor, K. E.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA 94551 USA.
RP Marvel, K (reprint author), Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, POB 808,L-103, Livermore, CA 94551 USA.
EM marvel1@llnl.gov
RI Taylor, Karl/F-7290-2011
OI Taylor, Karl/0000-0002-6491-2135
FU Office of Science (BER), U.S. Department of Energy at Lawrence Livermore
National Laboratory [DE-AC52-07NA27344]
FX We thank Ken Sperber, Ben Santer, and Celine Bonfils for helpful
comments. This work was supported by the Office of Science (BER), U.S.
Department of Energy at Lawrence Livermore National Laboratory under
contract DE-AC52-07NA27344.
NR 44
TC 2
Z9 2
U1 2
U2 12
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5082
EP 5097
DI 10.1002/jgrd.50433
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600002
ER
PT J
AU Muller, RA
Curry, J
Groom, D
Jacobsen, R
Perlmutter, S
Rohde, R
Rosenfeld, A
Wickham, C
Wurtele, J
AF Muller, Richard A.
Curry, Judith
Groom, Donald
Jacobsen, Robert
Perlmutter, Saul
Rohde, Robert
Rosenfeld, Arthur
Wickham, Charlotte
Wurtele, Jonathan
TI Decadal variations in the global atmospheric land temperatures
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE global warming; climate change; Earth surface temperature; decadal
variations; AMO
ID NORTH-ATLANTIC OSCILLATION; PERTURBATIONS; VARIABILITY; CIRCULATION
AB Interannual to decadal variations in Earth global temperature estimates have often been identified with El Nino Southern Oscillation (ENSO) events. However, we show that variability on time scales of 2-15 years in mean annual global land surface temperature anomalies T-avg are more closely correlated with variability in sea surface temperatures in the North Atlantic. In particular, the cross-correlation of annually averaged values of T-avg with annual values of the Atlantic Multidecadal Oscillation (AMO) index is much stronger than that of T-avg with ENSO. The pattern of fluctuations in T-avg from 1950 to 2010 reflects true climate variability and is not an artifact of station sampling. A world map of temperature correlations shows that the association with AMO is broadly distributed and unidirectional. The effect of El Nino on temperature is locally stronger, but can be of either sign, leading to less impact on the global average. We identify one strong narrow spectral peak in the AMO at period 9.10.4 years and p value of 1.7% (confidence level, 98.3%). Variations in the flow of the Atlantic meridional overturning circulation may be responsible for some of the 2-15 year variability observed in global land temperatures.
C1 [Muller, Richard A.; Jacobsen, Robert; Perlmutter, Saul; Rosenfeld, Arthur; Wurtele, Jonathan] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Muller, Richard A.; Groom, Donald; Jacobsen, Robert; Perlmutter, Saul; Rosenfeld, Arthur; Wurtele, Jonathan] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Muller, Richard A.; Rohde, Robert] Berkeley Earth, Berkeley, CA USA.
[Curry, Judith] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Wickham, Charlotte] Oregon State Univ, Dept Stat, Corvallis, OR 97331 USA.
RP Muller, RA (reprint author), Berkeley Earth Program, 2831 Garber St, Berkeley, CA 94705 USA.
EM ramuller@lbl.gov
RI Perlmutter, Saul/I-3505-2015; wurtele, Jonathan/J-6278-2016
OI Perlmutter, Saul/0000-0002-4436-4661; wurtele,
Jonathan/0000-0001-8401-0297
FU Novim Group; Lee and Juliet Folger Fund; Lawrence Berkeley National
Laboratory; William K. Bowes Jr. Foundation; Fund for Innovative Climate
and Energy Research; Ann and Gordon Getty Foundation; Charles G. Koch
Charitable Foundation
FX This work was done as part of the Berkeley Earth project, organized
under the auspices of the Novim Group (www.Novim.org). We thank many
organizations for their support, including the Lee and Juliet Folger
Fund, the Lawrence Berkeley National Laboratory, the William K. Bowes
Jr. Foundation, the Fund for Innovative Climate and Energy Research
(created by Bill Gates), the Ann and Gordon Getty Foundation, the
Charles G. Koch Charitable Foundation, and three private individuals (M.
D., N. G., and M. D.). More information on the Berkeley Earth project
can be found at www.BerkeleyEarth.org.
NR 23
TC 20
Z9 20
U1 2
U2 23
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5280
EP 5286
DI 10.1002/jgrd.50458
PG 7
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600017
ER
PT J
AU Wang, Y
Fan, JW
Zhang, RY
Leung, LR
Franklin, C
AF Wang, Yuan
Fan, Jiwen
Zhang, Renyi
Leung, L. Ruby
Franklin, Charmaine
TI Improving bulk microphysics parameterizations in simulations of aerosol
effects
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Prognostic aerosols; AIE; autoconversion
ID SPECTRAL BIN MICROPHYSICS; SOUTHEAST PACIFIC STRATOCUMULUS; POLAR
STRATOSPHERIC CLOUDS; DEEP CONVECTIVE CLOUDS; MESOSCALE MODEL MM5;
LONG-TERM IMPACTS; PART I; MARINE STRATOCUMULUS; VOCALS-REX; RESOLVING
MODEL
AB To improve the microphysical parameterizations for simulations of the aerosol effects in regional and global climate models, the Morrison double-moment bulk microphysical scheme presently implemented in the Weather Research and Forecasting model is modified by replacing the prescribed aerosols in the original bulk scheme (Bulk-OR) with a prognostic double-moment aerosol representation to predict both aerosol number concentration and mass mixing ratio (Bulk-2M). Sensitivity modeling experiments are performed for two distinct cloud regimes: maritime warm stratocumulus clouds (Sc) over southeast Pacific Ocean from the VOCALS project and continental deep convective clouds in the southeast of China. The results from Bulk-OR and Bulk-2M are compared against atmospheric observations and simulations produced by a spectral bin microphysical scheme (SBM). The prescribed aerosol approach (Bulk-OR) produces unreliable aerosol and cloud properties throughout the simulation period, when compared to the results from those using Bulk-2M and SBM, although all of the model simulations are initiated by the same initial aerosol concentration on the basis of the field observations. The impacts of the parameterizations of diffusional growth and autoconversion of cloud droplets and the selection of the embryonic raindrop radius on the performance of the bulk microphysical scheme are also evaluated by comparing the results from the modified Bulk-2M with those from SBM simulations. Sensitivity experiments using four different types of autoconversion schemes reveal that the autoconversion parameterization is crucial in determining the raindrop number, mass concentration, and drizzle formation for warm stratocumulus clouds. An embryonic raindrop size of 40 mu m is determined as a more realistic setting in the autoconversion parameterization. The saturation adjustment employed in calculating condensation/evaporation in the bulk scheme is identified as the main factor responsible for the large discrepancies in predicting cloud water in the Sc case, suggesting that an explicit calculation of diffusion growth with predicted supersaturation is necessary to improve the bulk microphysics scheme. Lastly, a larger rain evaporation rate below clouds is found in the bulk scheme in comparison to the SBM simulation, which may contribute to a lower surface precipitation in the bulk scheme.
C1 [Wang, Yuan; Zhang, Renyi] Texas A&M Univ, College Stn, TX USA.
[Fan, Jiwen; Leung, L. Ruby] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Franklin, Charmaine] Ctr Australian Weather & Climate Res, Aspendale, Vic, Australia.
RP Zhang, RY (reprint author), Dept Atmospher Sci, MS 3150, College Stn, TX 77840 USA.
EM jiwen.fan@pnnl.gov; renyi-zhang@tamu.edu
RI Fan, Jiwen/E-9138-2011; Zhang, Renyi/A-2942-2011
FU NASA Graduate Student Fellowship in Earth System Science; Department of
Energy (DOE); National Science Foundation; DOE [DE-AC06-76RLO 1830]
FX Y. Wang acknowledged the support by an NASA Graduate Student Fellowship
in Earth System Science. This study was supported by Department of
Energy (DOE) Regional and Global Climate Modeling program for the
bilateral agreement between DOE and China Ministry of Science and
Technology on regional climate research. The authors were grateful to
helpful discussion with Hugh Morrison of NCAR and Qing Yang and Hailong
Wang of PNNL. The measurements from C130 aircraft and Ron Brown ship
were obtained from the VOCALS data archive of NCAR/EOL and sponsored by
the National Science Foundation. PNNL is operated by Battelle for the
DOE under Contract DE-AC06-76RLO 1830.
NR 79
TC 18
Z9 19
U1 1
U2 20
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5361
EP 5379
DI 10.1002/jgrd.50432
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600024
ER
PT J
AU Bond, TC
Doherty, SJ
Fahey, DW
Forster, PM
Berntsen, T
DeAngelo, BJ
Flanner, MG
Ghan, S
Karcher, B
Koch, D
Kinne, S
Kondo, Y
Quinn, PK
Sarofim, MC
Schultz, MG
Schulz, M
Venkataraman, C
Zhang, H
Zhang, S
Bellouin, N
Guttikunda, SK
Hopke, PK
Jacobson, MZ
Kaiser, JW
Klimont, Z
Lohmann, U
Schwarz, JP
Shindell, D
Storelvmo, T
Warren, SG
Zender, CS
AF Bond, T. C.
Doherty, S. J.
Fahey, D. W.
Forster, P. M.
Berntsen, T.
DeAngelo, B. J.
Flanner, M. G.
Ghan, S.
Kaercher, B.
Koch, D.
Kinne, S.
Kondo, Y.
Quinn, P. K.
Sarofim, M. C.
Schultz, M. G.
Schulz, M.
Venkataraman, C.
Zhang, H.
Zhang, S.
Bellouin, N.
Guttikunda, S. K.
Hopke, P. K.
Jacobson, M. Z.
Kaiser, J. W.
Klimont, Z.
Lohmann, U.
Schwarz, J. P.
Shindell, D.
Storelvmo, T.
Warren, S. G.
Zender, C. S.
TI Bounding the role of black carbon in the climate system: A scientific
assessment
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Review
DE black carbon; climate forcing; aerosol
ID AEROSOL LIGHT-ABSORPTION; GENERAL-CIRCULATION MODEL; BIOMASS BURNING
EMISSIONS; CIRRUS CLOUD FORMATION; GREENHOUSE-GAS EMISSIONS; AIRBORNE
PARTICULATE MATTER; GLOBAL WARMING POTENTIALS; INDIAN-OCEAN EXPERIMENT;
FOSSIL-FUEL COMBUSTION; CHEMICAL MASS-BALANCE
AB Black carbon aerosol plays a unique and important role in Earth's climate system. Black carbon is a type of carbonaceous material with a unique combination of physical properties. This assessment provides an evaluation of black-carbon climate forcing that is comprehensive in its inclusion of all known and relevant processes and that is quantitative in providing best estimates and uncertainties of the main forcing terms: direct solar absorption; influence on liquid, mixed phase, and ice clouds; and deposition on snow and ice. These effects are calculated with climate models, but when possible, they are evaluated with both microphysical measurements and field observations. Predominant sources are combustion related, namely, fossil fuels for transportation, solid fuels for industrial and residential uses, and open burning of biomass. Total global emissions of black carbon using bottom-up inventory methods are 7500 Gg yr(-1) in the year 2000 with an uncertainty range of 2000 to 29000. However, global atmospheric absorption attributable to black carbon is too low in many models and should be increased by a factor of almost 3. After this scaling, the best estimate for the industrial-era (1750 to 2005) direct radiative forcing of atmospheric black carbon is +0.71 W m(-2) with 90% uncertainty bounds of (+0.08, +1.27) W m(-2). Total direct forcing by all black carbon sources, without subtracting the preindustrial background, is estimated as +0.88 (+0.17, +1.48) W m(-2). Direct radiative forcing alone does not capture important rapid adjustment mechanisms. A framework is described and used for quantifying climate forcings, including rapid adjustments. The best estimate of industrial-era climate forcing of black carbon through all forcing mechanisms, including clouds and cryosphere forcing, is +1.1 W m(-2) with 90% uncertainty bounds of +0.17 to +2.1 W m(-2). Thus, there is a very high probability that black carbon emissions, independent of co-emitted species, have a positive forcing and warm the climate. We estimate that black carbon, with a total climate forcing of +1.1 W m(-2), is the second most important human emission in terms of its climate forcing in the present-day atmosphere; only carbon dioxide is estimated to have a greater forcing. Sources that emit black carbon also emit other short-lived species that may either cool or warm climate. Climate forcings from co-emitted species are estimated and used in the framework described herein. When the principal effects of short-lived co-emissions, including cooling agents such as sulfur dioxide, are included in net forcing, energy-related sources (fossil fuel and biofuel) have an industrial-era climate forcing of +0.22 (-0.50 to +1.08) W m(-2) during the first year after emission. For a few of these sources, such as diesel engines and possibly residential biofuels, warming is strong enough that eliminating all short-lived emissions from these sources would reduce net climate forcing (i.e., produce cooling). When open burning emissions, which emit high levels of organic matter, are included in the total, the best estimate of net industrial-era climate forcing by all short-lived species from black-carbon-rich sources becomes slightly negative (-0.06 W m(-2) with 90% uncertainty bounds of -1.45 to +1.29 W m(-2)).
The uncertainties in net climate forcing from black-carbon-rich sources are substantial, largely due to lack of knowledge about cloud interactions with both black carbon and co-emitted organic carbon. In prioritizing potential black-carbon mitigation actions, non-science factors, such as technical feasibility, costs, policy design, and implementation feasibility play important roles. The major sources of black carbon are presently in different stages with regard to the feasibility for near-term mitigation. This assessment, by evaluating the large number and complexity of the associated physical and radiative processes in black-carbon climate forcing, sets a baseline from which to improve future climate forcing estimates.
C1 [Bond, T. C.] Univ Illinois, Urbana, IL 61801 USA.
[Doherty, S. J.] Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA.
[Fahey, D. W.; Schwarz, J. P.] Univ Colorado, NOAA Earth Syst Res Lab, Boulder, CO 80309 USA.
[Fahey, D. W.; Schwarz, J. P.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Forster, P. M.] Univ Leeds, Leeds, W Yorkshire, England.
[Berntsen, T.] Univ Oslo, Ctr Int Climate & Environm Res Oslo, Oslo, Norway.
[Berntsen, T.] Univ Oslo, Dept Geosci, Oslo, Norway.
[DeAngelo, B. J.; Sarofim, M. C.] US EPA, Washington, DC 20460 USA.
[Flanner, M. G.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Ghan, S.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Kaercher, B.] Deutsch Zentrum Luft & Raumfahrt Oberpfaffenhofen, Wessling, Germany.
[Koch, D.] US DOE, Washington, DC 20585 USA.
[Kinne, S.] Max Planck Inst, Hamburg, Germany.
[Kondo, Y.] Univ Tokyo, Tokyo, Japan.
[Quinn, P. K.] NOAA Pacific Marine Environm Lab, Seattle, WA USA.
[Schultz, M. G.] Forschungszentrum Julich, D-52425 Julich, Germany.
[Schulz, M.] Norwegian Meteorol Inst, Oslo, Norway.
[Venkataraman, C.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Zhang, H.] China Meteorol Adm, Beijing, Peoples R China.
[Zhang, S.] Peking Univ, Beijing 100871, Peoples R China.
[Bellouin, N.] Met Off Hadley Ctr, Exeter, Devon, England.
[Guttikunda, S. K.] Univ Nevada, Desert Res Inst, Div Atmospher Sci, Reno, NV 89506 USA.
[Hopke, P. K.] Clarkson Univ, Potsdam, NY USA.
[Jacobson, M. Z.] Stanford Univ, Stanford, CA 94305 USA.
[Kaiser, J. W.] European Ctr Medium Range Weather Forecasts, Reading RG2 9AX, Berks, England.
[Kaiser, J. W.] Kings Coll London, London, England.
[Kaiser, J. W.] Max Planck Inst Chem, D-55128 Mainz, Germany.
[Klimont, Z.] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Lohmann, U.] ETH, Zurich, Switzerland.
[Shindell, D.] NASA Goddard Inst Space Studies, New York, NY USA.
[Storelvmo, T.] Yale Univ, New Haven, CT USA.
[Warren, S. G.] Univ Washington, Seattle, WA 98195 USA.
[Zender, C. S.] Univ Calif Irvine, Irvine, CA USA.
RP Bond, TC (reprint author), Univ Illinois, Urbana, IL 61801 USA.
EM yark@uiuc.edu
RI Fahey, David/G-4499-2013; Quinn, Patricia/R-1493-2016; Forster,
Piers/F-9829-2010; Schultz, Martin/I-9512-2012; Manager, CSD
Publications/B-2789-2015; Zender, Charles/D-4485-2012; Kaiser,
Johannes/A-7057-2012; Shindell, Drew/D-4636-2012; Karcher,
Bernd/D-5325-2014; schwarz, joshua/G-4556-2013; Flanner,
Mark/C-6139-2011; Kondo, Yutaka/D-1459-2012; Bond, Tami/A-1317-2013;
Doherty, Sarah/D-5592-2015; Lohmann, Ulrike/B-6153-2009; Schulz,
Michael/A-6930-2011; Klimont, Zbigniew/P-7641-2015; Ghan,
Steven/H-4301-2011; Hopke, Philip/C-6020-2008
OI Fahey, David/0000-0003-1720-0634; Quinn, Patricia/0000-0003-0337-4895;
Forster, Piers/0000-0002-6078-0171; Schultz, Martin/0000-0003-3455-774X;
Zender, Charles/0000-0003-0129-8024; Kaiser,
Johannes/0000-0003-3696-9123; Karcher, Bernd/0000-0003-0278-4980;
schwarz, joshua/0000-0002-9123-2223; Flanner, Mark/0000-0003-4012-174X;
Bond, Tami/0000-0001-5968-8928; Doherty, Sarah/0000-0002-7796-6968;
Lohmann, Ulrike/0000-0001-8885-3785; Schulz,
Michael/0000-0003-4493-4158; Klimont, Zbigniew/0000-0003-2630-198X;
Ghan, Steven/0000-0001-8355-8699; Hopke, Philip/0000-0003-2367-9661
FU International Global Atmospheric Chemistry (IGAC) project; Climate
Program Office of the National Oceanic and Atmospheric Administration
(NOAA); Radiation Sciences Program of the National Aeronautic and Space
Administration (NASA); CSC; Tully Graphics; IGAC via the Joint Institute
for the Study of the Atmosphere and Ocean (JISAO) under NOAA
[NA10OAR4320148, 2035]; U.S. EPA [RD-83503401]; NASA [RD-83503401]; NSF
[ATM 08-52775]; DOE [DE-SC0006689, DE-AC06-76RLO 1830]; Royal Society
Wolfson Research Merit award; Joint DECC/Defra Met Office Hadley Centre
Climate Programme [GA01101]; U.S. Department of Energy (DOE), Office of
Science, Scientific Discovery through Advanced Computing (SciDAC)
program; DOE Decadal and Regional Climate Prediction using Earth System
Models (EaSM) program; Ministry of Education, Culture, Sports, Science,
and Technology (MEXT); Japan Science and Technology Agency (JST); global
environment research fund of the Japanese Ministry of the Environment
[A-1101]; EUCAARI project (EU-FP6) [34684]; U.S. National Science
Foundation; European Union Seventh Research Framework Programme (MACC
project) [218793]; U.S. NSF [ARC-06-12636]; National Basic Research
Program of China [2011CB403405]
FX This assessment is a contribution of the IGBP-IGAC/WCRP-SPARC
Atmospheric Chemistry and Climate Initiative (AC&C). The authors
acknowledge financial and technical support from the International
Global Atmospheric Chemistry (IGAC) project
(http://igac.jisao.washington.edu/index.php), C. Koblinsky of the
Climate Program Office of the National Oceanic and Atmospheric
Administration (NOAA), H. Maring of the Radiation Sciences Program of
the National Aeronautic and Space Administration (NASA), Rose Kendall of
CSC, and Beth Tully of Tully Graphics. IGAC funding for this project is
via the Joint Institute for the Study of the Atmosphere and Ocean
(JISAO) under NOAA Cooperative Agreement NA10OAR4320148, Contribution
No. 2035. The authors are grateful to Ray Minjares and the International
Council on Clean Transportation (ICCT) and Catherine Witherspoon of the
ClimateWorks Foundation for encouragement to undertake this effort. The
authors wish to thank the AeroCom modeling community and the AERONET
data providers for their great help in providing basic data sets,
further analyzed here. Olivier Boucher is thanked for his substantial
contribution to section 9 and his careful review and subsequent
discussion with the author team on the entire manuscript. We also thank
N. Riemer of the University of Illinois for particle-resolved simulation
results in Figure 6, N. Mahowald of Cornell University for dust fields
in Figure 12, and D. M. Winker of NASA for providing the CALIPSO data in
Figure 16. A. Heil is thanked for providing information on biomass fuel
loads and M. O. Andreae for providing updates of his biomass burning
emission factor compilation. E. Baum, J. Bachmann, R. Minjares, K. Ram,
V. Ramanathan, and D. Zaelke are thanked for reading and providing
comments that improved the document. T. C. Bond acknowledges support for
related work under U.S. EPA RD-83503401, NASA RD-83503401, NSF ATM
08-52775, and DOE DE-SC0006689. Piers Forster acknowledges support from
a Royal Society Wolfson Research Merit award. N. Bellouin was supported
by the Joint DECC/Defra Met Office Hadley Centre Climate Programme
(GA01101). S. Ghan was supported by the U.S. Department of Energy (DOE),
Office of Science, Scientific Discovery through Advanced Computing
(SciDAC) program, and the DOE Decadal and Regional Climate Prediction
using Earth System Models (EaSM) program. The Pacific Northwest National
Laboratory is operated for the DOE by Battelle Memorial Institute under
contract DE-AC06-76RLO 1830. Y. Kondo was supported by the Ministry of
Education, Culture, Sports, Science, and Technology (MEXT), strategic
international cooperative program of Japan Science and Technology Agency
(JST), and the global environment research fund of the Japanese Ministry
of the Environment (A-1101). For P. K. Quinn's work, this is NOAA PMEL
contribution no. 3786. M. Schulz received funding support through the
EUCAARI project (EU-FP6 Contract 34684). M. Z. Jacobson received funding
from the U.S. National Science Foundation. J. W. Kaiser was supported by
the European Union Seventh Research Framework Programme (MACC project,
contract number 218793). S. G. Warren acknowledges support from U.S. NSF
grant ARC-06-12636. H. Zhang was funded by the National Basic Research
Program of China (2011CB403405). The views expressed in this paper are
those of the authors and do not necessarily reflect the views or
policies of the U.S. Environmental Protection Agency.
NR 867
TC 936
Z9 961
U1 128
U2 726
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5380
EP 5552
DI 10.1002/jgrd.50171
PG 173
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600025
ER
PT J
AU van Donkelaar, A
Martin, RV
Spurr, RJD
Drury, E
Remer, LA
Levy, RC
Wang, J
AF van Donkelaar, Aaron
Martin, Randall V.
Spurr, Robert J. D.
Drury, Easan
Remer, Lorraine A.
Levy, Robert C.
Wang, Jun
TI Optimal estimation for global ground-level fine particulate matter
concentrations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE PM2.5; AOD; Optimal Estimation; AERONET; CALIOP; MODIS
ID AEROSOL OPTICAL DEPTH; UNITED-STATES; AIR-POLLUTION; SATELLITE
RETRIEVALS; RADIATIVE-TRANSFER; ALGORITHM; PM2.5; REFLECTANCE; LONG;
VISIBILITY
AB We develop an optimal estimation (OE) algorithm based on top-of-atmosphere reflectances observed by the MODIS satellite instrument to retrieve near-surface fine particulate matter (PM2.5). The GEOS-Chem chemical transport model is used to provide prior information for the Aerosol Optical Depth (AOD) retrieval and to relate total column AOD to PM2.5. We adjust the shape of the GEOS-Chem relative vertical extinction profiles by comparison with lidar retrievals from the CALIOP satellite instrument. Surface reflectance relationships used in the OE algorithm are indexed by land type. Error quantities needed for this OE algorithm are inferred by comparison with AOD observations taken by a worldwide network of sun photometers (AERONET) and extended globally based upon aerosol speciation and cross correlation for simulated values, and upon land type for observational values. Significant agreement in PM2.5 is found over North America for 2005 (slope=0.89; r=0.82; 1-sigma error=1 mu g/m(3)+27%), with improved coverage and correlation relative to previous work for the same region and time period, although certain subregions, such as the San Joaquin Valley of California are better represented by previous estimates. Independently derived error estimates of the OE PM2.5 values at in situ locations over North America (of (2.5 mu g/m(3)+31%) and Europe of (3.5 mu g/m(3)+30%) are corroborated by comparison with in situ observations, although globally (error estimates of (3.0 mu g/m(3)+35%), may be underestimated. Global population-weighted PM2.5 at 50% relative humidity is estimated as 27.8 mu g/m(3) at 0.1 degrees x0.1 degrees resolution.
C1 [van Donkelaar, Aaron; Martin, Randall V.] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada.
[Martin, Randall V.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Spurr, Robert J. D.] RT Solut Inc, Cambridge, MA USA.
[Drury, Easan] Natl Renewable Energy Lab, Golden, CO USA.
[Remer, Lorraine A.] Univ Maryland, JCET, Baltimore, MD 21201 USA.
[Levy, Robert C.] Inc Lanham, Sci Syst & Applicat, Greenbelt, MD USA.
[Levy, Robert C.] NASA, Goddard Space Flight Ctr, Earth Sci Div, Greenbelt, MD 20771 USA.
[Wang, Jun] Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE USA.
RP van Donkelaar, A (reprint author), Dalhousie Univ, 6300 Coburg Rd, Halifax, NS B3H 3J5, Canada.
EM Aaron.van.Donkelaar@dal.ca
RI Levy, Robert/M-7764-2013; Martin, Randall/C-1205-2014; Chem,
GEOS/C-5595-2014; Wang, Jun/A-2977-2008
OI Levy, Robert/0000-0002-8933-5303; Martin, Randall/0000-0003-2632-8402;
Wang, Jun/0000-0002-7334-0490
FU Health Canada; Natural Sciences and Engineering Research Council of
Canada
FX We are grateful to the CALIOP, AERONET, NAPS, and AQS teams for making
available data used here. This work was funded by Health Canada and the
Natural Sciences and Engineering Research Council of Canada.
NR 63
TC 32
Z9 32
U1 9
U2 46
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5621
EP 5636
DI 10.1002/jgrd.50479
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600030
ER
PT J
AU Thorsen, TJ
Fu, Q
Comstock, JM
AF Thorsen, Tyler J.
Fu, Qiang
Comstock, Jennifer M.
TI Cloud effects on radiative heating rate profiles over Darwin using ARM
and A-train radar/lidar observations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE cloud forcing; radiative heating; A-train; ARM
ID ICE WATER-CONTENT; GENERAL-CIRCULATION MODEL; DATA ASSIMILATION SYSTEM;
CIRRUS CLOUDS; MEASUREMENT PROGRAM; ACCURATE PARAMETERIZATION; ALGORITHM
DESCRIPTION; TROPICAL TROPOPAUSE; RADAR REFLECTIVITY; LOWER STRATOSPHERE
AB Observations of clouds from the ground-based U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program and satellite-based A-train are used to compute cloud radiative forcing profiles over the ARM Darwin, Australia site. Cloud properties are obtained from both radar (the ARM Millimeter Cloud Radar (MMCR) and the CloudSat satellite in the A-train) and lidar (the ARM Micropulse lidar (MPL) and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite in the A-train) observations. Cloud microphysical properties are taken from combined radar and lidar retrievals for ice clouds and radar-only or lidar-only retrievals for liquid clouds. Large, statistically significant differences of up to 1.43K/d exist between the mean ARM and A-train net cloud radiative forcing profiles. The majority of the difference in cloud radiative forcing profiles is shown to be due to a large difference in the cloud fraction above 12km. Above this altitude, the A-train cloud fraction is significantly larger because many more clouds are detected by CALIPSO than by the ground-based MPL. It is shown that the MPL is unable to observe as many high clouds as CALIPSO due to being more frequently attenuated and a poorer sensitivity. We also isolate the difference in cloud radiative forcing due to sampling and retrieval differences which are of comparable importance but are of smaller impact than cloud fraction differences. This study demonstrates that A-train observations are better suited for the calculation of cloud radiative forcing profiles at Darwin. In addition, we find that it is necessary to supplement CloudSat with CALIPSO observations to obtain accurate cloud radiative forcing profiles.
C1 Univ Washington, Dept Atmospher Sci, Seattle, WA USA.
Pacif NW Natl Lab, Richland, WA USA.
[Thorsen, Tyler J.; Fu, Qiang] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
[Comstock, Jennifer M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Thorsen, TJ (reprint author), Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
EM tylert@atmos.washington.edu
FU DOE ASR program; DOE ARM program; Office of Science (BER), U.S.
Department of Energy [DE-FG02-09ER64769]
FX DARDAR data were provided by NASA/CNES, and we thank the ICARE Data and
Services Center (http://www.icare-lille1.fr) for providing access to the
data. CloudSat data were obtained from the Cooperative Institute for
Research in the Atmosphere (CIRA). ERA-Interim reanalysis data were
obtained from the ECMWF Data Server. The Darwin ARM data were obtained
from the ARM Data Archive. HALOE data were obtained from
http://haloe.gats-inc.com/download/. The UKMO stratospheric analysis
data were obtained from the British Atmospheric Data Centre (BADC). We
thank J. Delanoe, R. Marchand, and S. Po-Chedley for comments on an
earlier version of this manuscript. J.M. Comstock was supported by both
DOE ASR and ARM programs. This research was supported by the Office of
Science (BER), U.S. Department of Energy, grant DE-FG02-09ER64769.
NR 90
TC 3
Z9 3
U1 0
U2 17
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5637
EP 5654
DI 10.1002/jgrd.50476
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600031
ER
PT J
AU Ryerson, TB
Andrews, AE
Angevine, WM
Bates, TS
Brock, CA
Cairns, B
Cohen, RC
Cooper, OR
de Gouw, JA
Fehsenfeld, FC
Ferrare, RA
Fischer, ML
Flagan, RC
Goldstein, AH
Hair, JW
Hardesty, RM
Hostetler, CA
Jimenez, JL
Langford, AO
McCauley, E
McKeen, SA
Molina, LT
Nenes, A
Oltmans, SJ
Parrish, DD
Pederson, JR
Pierce, RB
Prather, K
Quinn, PK
Seinfeld, JH
Senff, CJ
Sorooshian, A
Stutz, J
Surratt, JD
Trainer, M
Volkamer, R
Williams, EJ
Wofsy, SC
AF Ryerson, T. B.
Andrews, A. E.
Angevine, W. M.
Bates, T. S.
Brock, C. A.
Cairns, B.
Cohen, R. C.
Cooper, O. R.
de Gouw, J. A.
Fehsenfeld, F. C.
Ferrare, R. A.
Fischer, M. L.
Flagan, R. C.
Goldstein, A. H.
Hair, J. W.
Hardesty, R. M.
Hostetler, C. A.
Jimenez, J. L.
Langford, A. O.
McCauley, E.
McKeen, S. A.
Molina, L. T.
Nenes, A.
Oltmans, S. J.
Parrish, D. D.
Pederson, J. R.
Pierce, R. B.
Prather, K.
Quinn, P. K.
Seinfeld, J. H.
Senff, C. J.
Sorooshian, A.
Stutz, J.
Surratt, J. D.
Trainer, M.
Volkamer, R.
Williams, E. J.
Wofsy, S. C.
TI The 2010 California Research at the Nexus of Air Quality and Climate
Change (CalNex) field study
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Review
DE California; air quality; climate change; field study; CalNex
ID VOLATILE ORGANIC-COMPOUNDS; IONIZATION-MASS-SPECTROMETRY; MARINE
BOUNDARY-LAYER; AEROSOL OPTICAL-PROPERTIES; MILAGRO 2006 CAMPAIGN;
IN-SITU MEASUREMENTS; LOS-ANGELES BASIN; 2-DIMENSIONAL
GAS-CHROMATOGRAPHY; POLLUTED URBAN-ENVIRONMENT; SPECTRAL-RESOLUTION
LIDAR
AB The California Research at the Nexus of Air Quality and Climate Change (CalNex) field study was conducted throughout California in May, June, and July of 2010. The study was organized to address issues simultaneously relevant to atmospheric pollution and climate change, including (1) emission inventory assessment, (2) atmospheric transport and dispersion, (3) atmospheric chemical processing, and (4) cloud-aerosol interactions and aerosol radiative effects. Measurements from networks of ground sites, a research ship, tall towers, balloon-borne ozonesondes, multiple aircraft, and satellites provided in situ and remotely sensed data on trace pollutant and greenhouse gas concentrations, aerosol chemical composition and microphysical properties, cloud microphysics, and meteorological parameters. This overview report provides operational information for the variety of sites, platforms, and measurements, their joint deployment strategy, and summarizes findings that have resulted from the collaborative analyses of the CalNex field study. Climate-relevant findings from CalNex include that leakage from natural gas infrastructure may account for the excess of observed methane over emission estimates in Los Angeles. Air-quality relevant findings include the following: mobile fleet VOC significantly declines, and NOx emissions continue to have an impact on ozone in the Los Angeles basin; the relative contributions of diesel and gasoline emission to secondary organic aerosol are not fully understood; and nighttime NO3 chemistry contributes significantly to secondary organic aerosol mass in the San Joaquin Valley. Findings simultaneously relevant to climate and air quality include the following: marine vessel emissions changes due to fuel sulfur and speed controls result in a net warming effect but have substantial positive impacts on local air quality.
C1 [Ryerson, T. B.; Angevine, W. M.; Brock, C. A.; Cooper, O. R.; de Gouw, J. A.; Langford, A. O.; McKeen, S. A.; Parrish, D. D.; Senff, C. J.; Trainer, M.; Williams, E. J.] NOAA, Div Chem Sci, Boulder, CO USA.
[Andrews, A. E.] NOAA, Global Monitoring Div, Boulder, CO USA.
[Angevine, W. M.; Cooper, O. R.; de Gouw, J. A.; Fehsenfeld, F. C.; Hardesty, R. M.; Jimenez, J. L.; McKeen, S. A.; Oltmans, S. J.; Senff, C. J.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Bates, T. S.; Quinn, P. K.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[Cairns, B.] NASA, Goddard Inst Space Studies, Greenbelt, MD USA.
[Cohen, R. C.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Ferrare, R. A.; Hair, J. W.; Hostetler, C. A.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Fischer, M. L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Flagan, R. C.; Seinfeld, J. H.] CALTECH, Dept Chem Engn, Pasadena, CA 91125 USA.
[Goldstein, A. H.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Jimenez, J. L.; Volkamer, R.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[McCauley, E.; Pederson, J. R.] Calif Air Resources Board, Atmospher Processes Res Sect, Sacramento, CA USA.
[Molina, L. T.] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA.
[Molina, L. T.] Molina Ctr Energy & Environm, La Jolla, CA USA.
[Nenes, A.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Pierce, R. B.] NOAA, Natl Environm Satellite Data & Informat Serv, Madison, WI USA.
[Prather, K.] Univ Calif San Diego, Dept Chem & Biochem, San Diego, CA 92103 USA.
[Sorooshian, A.] Univ Arizona, Tucson, AZ USA.
[Stutz, J.] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA.
[Surratt, J. D.] Univ N Carolina, Chapel Hill, NC USA.
[Wofsy, S. C.] Harvard Univ, Boston, MA 02115 USA.
RP Ryerson, TB (reprint author), NOAA, Div Chem Sci, Boulder, CO USA.
EM thomas.b.ryerson@noaa.gov
RI Ryerson, Tom/C-9611-2009; Stutz, Jochen/K-7159-2014; de Gouw,
Joost/A-9675-2008; Volkamer, Rainer/B-8925-2016; Bates,
Timothy/L-6080-2016; Quinn, Patricia/R-1493-2016; Manager, CSD
Publications/B-2789-2015; Prather, Kimberly/A-3892-2008; Jimenez,
Jose/A-5294-2008; Surratt, Jason/D-3611-2009; Trainer,
Michael/H-5168-2013; Senff, Christoph/I-2592-2013; Langford,
Andrew/D-2323-2009; Cohen, Ronald/A-8842-2011; Pierce, Robert
Bradley/F-5609-2010; Cooper, Owen/H-4875-2013; Angevine,
Wayne/H-9849-2013; Goldstein, Allen/A-6857-2011; Parrish,
David/E-8957-2010; Andrews, Arlyn/K-3427-2012; Brock,
Charles/G-3406-2011
OI de Gouw, Joost/0000-0002-0385-1826; Volkamer,
Rainer/0000-0002-0899-1369; Quinn, Patricia/0000-0003-0337-4895;
Prather, Kimberly/0000-0003-3048-9890; Cairns,
Brian/0000-0002-1980-1022; Sorooshian, Armin/0000-0002-2243-2264;
Jimenez, Jose/0000-0001-6203-1847; Surratt, Jason/0000-0002-6833-1450;
Langford, Andrew/0000-0002-2932-7061; Cohen, Ronald/0000-0001-6617-7691;
Pierce, Robert Bradley/0000-0002-2767-1643; Angevine,
Wayne/0000-0002-8021-7116; Goldstein, Allen/0000-0003-4014-4896;
Parrish, David/0000-0001-6312-2724; Brock, Charles/0000-0002-4033-4668
FU NOAA Air Quality program; California Air Resources Board; NOAA Climate
Change program [NA090AR4310128]; DOE Atmospheric Systems Research
Program; NASA Radiation Sciences and Tropospheric Chemistry programs;
NOAA Office of Global Programs; California Energy Commission (CEC)
Public Interest Environmental Research Program; LBNL Laboratory Directed
Research through the U.S. Department of Energy [DE-AC02-05CH11231]; US
Department of Energy; US National Science Foundation
FX We thank L. Dolislager (CARB) for the description of existing long-term
criteria pollutant, greenhouse gas, and meteorological measurement sites
in California. We also thank G. Sanger and B. Ochs (NWS San Joaquin
Valley/Hanford Weather Forecast Office) and L. Dolislager and J.
Pederson (CARB) for meteorological forecast summaries. The R/V Atlantis
cruise and NOAA P-3 flights were supported, in part, by the NOAA Climate
Change and, in part, by the NOAA Air Quality programs. NOAA Twin Otter
flights were supported by the NOAA Air Quality program and the
California Air Resources Board. CIRPAS Twin Otter flights were supported
by the NOAA Climate Change program under contract NA090AR4310128. NASA
B200 flights were supported by the DOE Atmospheric Systems Research
Program and the NASA Radiation Sciences and Tropospheric Chemistry
programs. Data collection at the CALGEM tall tower sites was supported
by the NOAA Office of Global Programs, the California Energy Commission
(CEC) Public Interest Environmental Research Program, and LBNL
Laboratory Directed Research through the U.S. Department of Energy under
contract DE-AC02-05CH11231. Researchers at the ground sites were
supported by the California Air Resources Board, the NOAA Office of
Global Programs, the US Department of Energy, and the US National
Science Foundation.
NR 279
TC 77
Z9 77
U1 9
U2 144
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD JUN 16
PY 2013
VL 118
IS 11
BP 5830
EP 5866
DI 10.1002/jgrd.50331
PG 37
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228TG
UT WOS:000325212600045
ER
PT J
AU Vasco, DW
Rutqvist, J
Ferretti, A
Rucci, A
Bellotti, F
Dobson, P
Oldenburg, C
Garcia, J
Walters, M
Hartline, C
AF Vasco, D. W.
Rutqvist, Jonny
Ferretti, Alessandro
Rucci, Alessio
Bellotti, Fernando
Dobson, Patrick
Oldenburg, Curtis
Garcia, Julio
Walters, Mark
Hartline, Craig
TI Monitoring deformation at the Geysers Geothermal Field, California using
C-band and X-band interferometric synthetic aperture radar
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE deformation; InSAR; geothermal; X-band
ID SAR INTERFEROMETRY; PERMANENT SCATTERERS; LAND SUBSIDENCE; REGION; AREA
AB We resolve deformation at The Geysers Geothermal Field using two distinct sets of interferometric synthetic aperture radar (InSAR) data. The first set of observations utilize archived European Space Agency C-band synthetic aperture radar data from 1992 through 1999 to image the long-term and large-scale subsidence at The Geysers. The peak range velocity of approximately 50mm/year agrees with previous estimates from leveling and global positioning system observations. Data from a second set of measurements, acquired by TerraSAR-X satellites, extend from May 2011 until April 2012 and overlap the C-band data spatially but not temporally. These X-band data, analyzed using a combined permanent and distributed scatterer algorithm, provide a higher density of scatterers (1122 per square kilometer) than do the C-band data (12 per square kilometer). The TerraSAR-X observations resolve 1 to 2cm of deformation due to water injection into a Northwest Geysers enhanced geothermal system well, initiated on October 2011. The temporal variation of the deformation is compatible with estimates from coupled numerical modeling.
C1 [Vasco, D. W.; Rutqvist, Jonny; Dobson, Patrick; Oldenburg, Curtis] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Ferretti, Alessandro; Rucci, Alessio; Bellotti, Fernando] TRE Telerilevamento Europa, Milan, Italy.
[Garcia, Julio; Walters, Mark; Hartline, Craig] Calpine Corp, Middletown, CA USA.
RP Vasco, DW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley Lab, Bldg 74,1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM dwvasco@lbl.gov
RI Oldenburg, Curtis/L-6219-2013; Dobson, Patrick/D-8771-2015; Rutqvist,
Jonny/F-4957-2015; Vasco, Donald/I-3167-2016; Vasco, Donald/G-3696-2015
OI Oldenburg, Curtis/0000-0002-0132-6016; Walters,
Mark/0000-0001-8458-4813; Dobson, Patrick/0000-0001-5031-8592; Rutqvist,
Jonny/0000-0002-7949-9785; Vasco, Donald/0000-0003-1210-8628; Vasco,
Donald/0000-0003-1210-8628
FU U. S. Department of Energy [DE-AC02-05CH11231, DE-FC36-08G018201];
Calpine Corporation
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Geothermal Technologies Program of the U. S.
Department of Energy under contracts DE-AC02-05CH11231 and
DE-FC36-08G018201. Additional funding was provided by the Calpine
Corporation.
NR 28
TC 11
Z9 12
U1 1
U2 20
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 16
PY 2013
VL 40
IS 11
BP 2567
EP 2572
DI 10.1002/grl.50314
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 175VL
UT WOS:000321261600017
ER
PT J
AU Wang, J
Wexler, AS
AF Wang, Jian
Wexler, Anthony S.
TI Adsorption of organic molecules may explain growth of newly nucleated
clusters and new particle formation
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE adsorption; Kelvin effect; initial particle growth; new particle
formation
ID ATMOSPHERIC NUCLEI; STATISTICAL-MECHANICS; INITIAL STEPS; ACTIVATION;
CRITERION; VAPORS
AB New particle formation consists of homogeneous nucleation of thermodynamically stable clusters followed by growth of these clusters to a detectable size. For new particle formation to take place, these clusters need to grow sufficiently fast to escape coagulation with preexisting particles. Previous studies indicated that condensation of low-volatility organic vapor may play an important role in the initial growth of the clusters. However, due to the relatively high vapor pressure and partial molar volume of even highly oxidized organic compounds, the strong Kelvin effect may prevent typical ambient organics from condensing on these small clusters. Here we show that the adsorption of organic molecules onto the surface of clusters, not considered previously, may significantly reduce the saturation ratio required for the condensation of organics to occur and therefore may provide a physicochemical explanation for the enhanced initial growth by condensation of organics despite the strong Kelvin effect.
C1 [Wang, Jian] Brookhaven Natl Lab, Div Atmospher Sci, Upton, NY 11973 USA.
[Wexler, Anthony S.] Univ Calif Davis, Davis, CA 95616 USA.
RP Wang, J (reprint author), Brookhaven Natl Lab, Div Atmospher Sci, Upton, NY 11973 USA.
EM jian@bnl.gov
RI Wang, Jian/G-9344-2011
FU US Department of Energy's Atmospheric System Research Program (Office of
Science, OBER) [DE-AC02-98CH10886]
FX This work was supported by the US Department of Energy's Atmospheric
System Research Program (Office of Science, OBER) under contract
DE-AC02-98CH10886.
NR 26
TC 9
Z9 9
U1 0
U2 18
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JUN 16
PY 2013
VL 40
IS 11
BP 2834
EP 2838
DI 10.1002/grl.50455
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 175VL
UT WOS:000321261600065
ER
PT J
AU Ahmed, KM
Zhang, H
Park, CC
AF Ahmed, Kazi Mokim
Zhang, Hui
Park, Catherine C.
TI NF-kappa B Regulates Radioresistance Mediated By beta 1-Integrin in
Three-Dimensional Culture of Breast Cancer Cells
SO CANCER RESEARCH
LA English
DT Article
ID IN-VIVO; IONIZING-RADIATION; INDUCED APOPTOSIS; SUPEROXIDE-DISMUTASE;
EPITHELIAL-CELLS; DRUG-RESISTANCE; CARCINOMA-CELLS; INHIBITION;
ACTIVATION; THERAPY
AB beta 1-integrin induction enhances breast cancer cell survival after exposure to ionizing radiation (IR), but the mechanisms of this effect remain unclear. Although NF-kappa B initiates prosurvival signaling pathways post-IR, the molecular function of NF-kappa B with other key elements in radioresistance, particularly with respect to extracellular matrix-induced signaling, is not known. We discovered a typical NF-kappa B-binding site in the beta 1-integrin promoter region, indicating a possible regulatory role for NF-kappa B. Using three-dimensional laminin-rich extracellular matrix (3D lrECM) culture, we show that NF-kappa B is required for beta 1-integrin transactivation in T4-2 breast cancer cells post-IR. Inhibition of NF-kappa B reduced clonogenic survival and induced apoptosis and cytostasis in formed tumor colonies. In addition, T4-2 tumors with inhibition of NF-kappa B activity exhibit decreased growth in athymic mice, which was further reduced by IR with downregulated beta 1-integrin expression. Direct interactions between beta 1-integrin and NF-kappa B p65 were induced in nonmalignant breast epithelial cells, but not in malignant cells, indicating context-specific regulation. As beta 1-integrin also activates NF-kappa B, our findings reveal a novel forward feedback pathway that could be targeted to enhance therapy. (c) 2013 AACR.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Canc & DNA Damage Responses, Div Life Sci, Berkeley, CA 94720 USA.
Univ Calif San Francisco, Dept Radiat Oncol, San Francisco, CA 94143 USA.
RP Park, CC (reprint author), Univ Calif San Francisco, Ctr Comprehens Canc, Dept Radiat Oncol, 1600 Divisadero St H1031, San Francisco, CA 94143 USA.
EM cpark@radonc.ucsf.edu
FU NIH [1R01CA124891]
FX This work was supported by NIH grant 1R01CA124891 to C.C. Park.
NR 47
TC 18
Z9 20
U1 0
U2 5
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD JUN 15
PY 2013
VL 73
IS 12
BP 3737
EP 3748
DI 10.1158/0008-5472.CAN-12-3537
PG 12
WC Oncology
SC Oncology
GA 164AE
UT WOS:000320380300025
PM 23576567
ER
PT J
AU Hill, KK
Smith, TJ
Ticknor, LO
Foley, BT
Xie, G
AF Hill, K. K.
Smith, T. J.
Ticknor, L. O.
Foley, B. T.
Xie, G.
TI Genetic diversity between and within botulinum neurotoxin serotypes
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Hill, K. K.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Smith, T. J.] USA, Med Res Inst Infect Dis, Integrated Toxicol Div, Ft Detrick, MD 21702 USA.
[Ticknor, L. O.] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM USA.
[Foley, B. T.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA.
[Xie, G.] Los Alamos Natl Lab, DOE Joint Genome Inst, Los Alamos, NM USA.
OI Ticknor, Lawrence/0000-0002-7967-7908; xie, gary/0000-0002-9176-924X
NR 0
TC 0
Z9 0
U1 1
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 60
EP 61
DI 10.1016/j.toxicon.2012.07.021
PG 2
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500009
ER
PT J
AU Kyoung, M
Srivastava, A
Zhang, Y
Diao, J
Vrljic, M
Grob, P
Nogales, E
Chu, S
Brunger, AT
AF Kyoung, M.
Srivastava, A.
Zhang, Y.
Diao, J.
Vrljic, M.
Grob, P.
Nogales, E.
Chu, S.
Brunger, A. T.
TI Molecular mechanism of calcium-triggered vesicle fusion
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Kyoung, M.; Srivastava, A.; Diao, J.; Vrljic, M.; Brunger, A. T.] Stanford Univ, Dept Mol & Cellular Physiol, Stanford, CA 94305 USA.
[Kyoung, M.; Srivastava, A.; Diao, J.; Vrljic, M.; Brunger, A. T.] Stanford Univ, Dept Neurol & Neurol Sci, Stanford, CA 94305 USA.
[Kyoung, M.; Srivastava, A.; Diao, J.; Vrljic, M.; Brunger, A. T.] Stanford Univ, Dept Biol Struct, Stanford, CA 94305 USA.
[Kyoung, M.; Srivastava, A.; Diao, J.; Vrljic, M.; Brunger, A. T.] Stanford Univ, Dept Photon Sci, Stanford, CA 94305 USA.
[Kyoung, M.; Srivastava, A.; Diao, J.; Vrljic, M.; Brunger, A. T.] Howard Hughes Med Inst, Stanford, CA USA.
[Kyoung, M.; Zhang, Y.] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Grob, P.; Nogales, E.] Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Nogales, E.; Chu, S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Chu, S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Chu, S.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 66
EP 67
DI 10.1016/j.toxicon.2012.07.035
PG 2
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500023
ER
PT J
AU Swaminathan, S
Agarwal, R
Kumaran, D
AF Swaminathan, S.
Agarwal, R.
Kumaran, D.
TI Mode of substrate binding and cleavage
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Swaminathan, S.; Agarwal, R.; Kumaran, D.] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 66
EP 66
DI 10.1016/j.toxicon.2012.07.034
PG 1
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500022
ER
PT J
AU Doggett, N
Gans, J
Henrie, M
Dighe, P
Wolinsky, M
AF Doggett, N.
Gans, J.
Henrie, M.
Dighe, P.
Wolinsky, M.
TI In silico design and experimental screening of real-time PCR assays for
the detection of Clostridium perfringens and Clostridium tetani toxin
genes
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Doggett, N.; Gans, J.; Henrie, M.; Dighe, P.; Wolinsky, M.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
EM doggett@lanl.gov
NR 0
TC 1
Z9 1
U1 0
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 84
EP 84
DI 10.1016/j.toxicon.2012.07.076
PG 1
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500064
ER
PT J
AU Fischer, A
Mushrush, DJ
Sambashivan, S
Lacy, DB
Brunger, AT
Montal, M
AF Fischer, A.
Mushrush, D. J.
Sambashivan, S.
Lacy, D. B.
Brunger, A. T.
Montal, M.
TI Molecular dissection of botulinum neurotoxin reveals interdomain
chaperone function
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Fischer, A.; Montal, M.] Univ Calif San Diego, Div Biol Sci, Neurobiol Sect, La Jolla, CA 92093 USA.
[Mushrush, D. J.; Lacy, D. B.] Vanderbilt Univ, Dept Biochem, Med Ctr, Nashville, TN 37232 USA.
[Mushrush, D. J.; Lacy, D. B.] Vanderbilt Univ, Dept Microbiol, Med Ctr, Nashville, TN USA.
[Mushrush, D. J.; Lacy, D. B.] Vanderbilt Univ, Med Ctr, Dept Immunol, Nashville, TN USA.
[Mushrush, D. J.; Lacy, D. B.] Vanderbilt Univ, Struct Biol Ctr, Med Ctr, Nashville, TN USA.
[Brunger, A. T.] Stanford Univ, Dept Mol & Cellular Physiol, Stanford, CA 94305 USA.
[Brunger, A. T.] Stanford Univ, Dept Neurol, Stanford, CA 94305 USA.
[Brunger, A. T.] Stanford Univ, Dept Neurol Sci, Stanford, CA 94305 USA.
[Brunger, A. T.] Stanford Univ, Dept Biol Struct, Stanford, CA 94305 USA.
[Brunger, A. T.] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA.
EM audrey.fischer@jhuapl.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 86
EP 86
DI 10.1016/j.toxicon.2012.07.080
PG 1
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500068
ER
PT J
AU Zhang, Y
Lou, J
Marks, JD
Jenko, K
Varnum, S
AF Zhang, Y.
Lou, J.
Marks, J. D.
Jenko, K.
Varnum, S.
TI Development of an ELISA microarray platform for the sensitive and
quantitative detection of botulinum neurotoxins
SO TOXICON
LA English
DT Meeting Abstract
CT 7th International Conference on Basic and Therapeutic Aspects of
Botulinum and Tetanus Toxins (TOXINS)
CY OCT 02-05, 2011
CL Santa Fe, NM
C1 [Zhang, Y.; Jenko, K.; Varnum, S.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Lou, J.; Marks, J. D.] Univ Calif San Francisco, Dept Anesthesia, San Francisco Gen Hosp, San Francisco, CA 94143 USA.
EM susan.varnum@pnnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0041-0101
J9 TOXICON
JI Toxicon
PD JUN 15
PY 2013
VL 68
BP 101
EP 101
DI 10.1016/j.toxicon.2012.07.117
PG 1
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 159VN
UT WOS:000320075500105
ER
PT J
AU Deiterding, R
Glowinski, R
Oliver, H
Poole, S
AF Deiterding, Ralf
Glowinski, Roland
Oliver, Hilde
Poole, Stephen
TI A Reliable Split-Step Fourier Method for the Propagation Equation of
Ultra-Fast Pulses in Single-Mode Optical Fibers
SO JOURNAL OF LIGHTWAVE TECHNOLOGY
LA English
DT Article
DE Fiber optical communication; Raman scattering; self-steepening;
shock-capturing upwind scheme; split-step Fourier method (SSFM);
ultra-fast Gaussian pulse
ID GENERATION; SYSTEMS
AB The extension to the split-step Fourier method (SSFM) for Schrodinger-type pulse propagation equations that we propose in this article is designed with the accurate simulation of pulses in the femto-second regime in single-mode communication fibers in mind. We show that via an appropriate operator splitting scheme, Kerr nonlinearity and the self-steepening and stimulated Raman scattering terms can be combined into a single sub-step consisting of an inhomogeneous quasilinear first-order hyperbolic system for the real-valued quantities intensity and phase. First- and second-order accurate shock-capturing upwind schemes have been developed specifically for this nonlinear sub-step, which enables the accurate and oscillation-free simulation of signals under the influence of Raman scattering and extreme self-steepening with the SSFM. Benchmark computations of ultra-fast Gaussian pulses in fibers with strong nonlinearity demonstrate the superior approximation properties of the proposed approach.
C1 [Deiterding, Ralf; Poole, Stephen] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Glowinski, Roland] Univ Houston, Dept Math, Houston, TX 77204 USA.
[Oliver, Hilde] Univ S Carolina, Dept Math, Columbia, SC 29208 USA.
RP Deiterding, R (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM deiterdingr@ornl.gov; roland@math.uh.edu; oliverh@email.sc.edu;
spoole@ornl.gov
RI Deiterding, Ralf/A-3394-2009
OI Deiterding, Ralf/0000-0003-4776-8183
FU Department of Defense
FX This work was supported by the Department of Defense and used resources
of the Extreme Scale Systems Center at Oak Ridge National Laboratory.
NR 25
TC 4
Z9 5
U1 0
U2 18
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0733-8724
EI 1558-2213
J9 J LIGHTWAVE TECHNOL
JI J. Lightwave Technol.
PD JUN 15
PY 2013
VL 31
IS 12
BP 2008
EP 2017
DI 10.1109/JLT.2013.2262654
PG 10
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA 151KO
UT WOS:000319459600018
ER
PT J
AU Cao, GH
Yao, PP
Fu, C
Russell, AM
AF Cao, G. H.
Yao, P. P.
Fu, C.
Russell, A. M.
TI Microstructure and oxidation behavior of Al and Hf co-deposition
coatings on nickel-based superalloys
SO SURFACE & COATINGS TECHNOLOGY
LA English
DT Article
DE Diffusion coating; Microstructure; Pack cementation; Hf; Oxidation
resistance
ID THERMAL BARRIER COATINGS; NI-BASED SUPERALLOYS; BOND COATINGS; ALUMINIDE
COATINGS; GROWN OXIDE; SULFUR; ADDITIONS; PLATINUM; ADHESION; ELEMENTS
AB This study focuses on investigating the microstructure and oxidation behavior of Al and Hf co-deposition diffusion coatings deposited by Pt electroplating followed by combined aluminizing and hafnizing using the pack cementation technique. The composition (in wt.%) of the packs was 2NiAl-2NH(4)Cl-xHf-(96 - x)Al2O3 with different Hf levels (x = 2, 6, 12 and 16), and the corresponding microstructure of the coatings was gamma-Ni + gamma'-Ni3Al, NiAl + Al16Hf6Ni7, Al16Hf6Ni7 and Al1.65HfNi0.35, respectively. In the post heat-treatment process, with Hf and Al diffusing towards the superalloy substrate and Ni diffusing in the opposite direction, Al16Hf6Ni7 and Al1.65HfNi0.35 were transformed into Ni3Al + Al3HfNi12 and NiAl + Al3HfNi12, respectively. The isothermal oxidation tests at 1000 degrees C in air indicated that the coating formed in the packs containing 2 wt.% Hf had the lowest weight gain, while the weight gain of the coating formed in the packs having 6 wt.% Hf was the largest. The mechanisms of Hf-rich phase formation and their effects on oxidation resistance of the coatings were discussed. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Cao, G. H.; Yao, P. P.; Fu, C.] Shanghai Univ, Dept Mat Engn, Shanghai 200072, Peoples R China.
[Russell, A. M.] US DOE, Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA.
[Russell, A. M.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Cao, GH (reprint author), Shanghai Univ, Dept Mat Engn, 149 Yanchang Rd, Shanghai 200072, Peoples R China.
EM ghcao@shu.edu.cn
OI Russell, Alan/0000-0001-5264-0104
FU Shanghai Committee of Science and Technology, China [10JC1405100,
11520701200]; Innovation Program of Shanghai Municipal Education
Commission [13ZZ077]; National Natural Science Foundation of China
(NSFC) [51271107]; US Department of Energy [DE-AC02-07CH11358]
FX This work was supported by the Shanghai Committee of Science and
Technology, China under Grant Nos. 10JC1405100 and 11520701200, the
Innovation Program of Shanghai Municipal Education Commission under
Grant No. 13ZZ077, and the National Natural Science Foundation of China
(NSFC) under Grant 51271107. The Ames Laboratory is operated for the US
Department of Energy by Iowa State University under Contract No.
DE-AC02-07CH11358.
NR 32
TC 2
Z9 3
U1 3
U2 40
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0257-8972
J9 SURF COAT TECH
JI Surf. Coat. Technol.
PD JUN 15
PY 2013
VL 224
BP 57
EP 61
DI 10.1016/j.surfcoat.2013.02.049
PG 5
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 150CE
UT WOS:000319367000008
ER
PT J
AU Norman, MR
AF Norman, M. R.
TI Algorithmic improvements for schemes using the ADER time discretization
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE F-waves; ADER Multi-Moment; Finite-Volume
ID CONSERVATION-LAWS; SOURCE TERMS
AB We detail several algorithmic changes to the ADER Multi-Moment Finite-Volume Methods (ADER + MMFV) of Norman and Finkel (2012) [2]. The DT recurrence relations are improved, flux and source term differential transforms are saved, each are expanded as polynomials, quadrature is removed from the algorithm, integration is performed analytically, and a different Riemann solver admitting direct use of time-averaged fluxes is used. These algorithmic changes were implemented and tested, and smooth 1-D shallow water experiments confirm the same or slightly better accuracy as well as 2-3 x lower runtimes compared to Norman and Finkel (2012) [2]. (C) 2013 Elsevier Inc. All rights reserved.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Norman, MR (reprint author), Oak Ridge Natl Lab, POB 2008,MS6016, Oak Ridge, TN 37831 USA.
EM normanmr@ornl.gov
FU Office of Science of the U.S. Department of Energy [DE-AC05-00OR22725]
FX This research used resources of the National Center for Computational
Sciences at Oak Ridge National Laboratory, which is supported by the
Office of Science of the U.S. Department of Energy under Contract No.
DE-AC05-00OR22725.
NR 5
TC 5
Z9 5
U1 0
U2 9
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUN 15
PY 2013
VL 243
BP 176
EP 178
DI 10.1016/j.jcp.2013.03.003
PG 3
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 145WT
UT WOS:000319050800011
ER
PT J
AU Bazilevs, Y
Akkerman, I
Benson, DJ
Scovazzi, G
Shashkov, MJ
AF Bazilevs, Y.
Akkerman, I.
Benson, D. J.
Scovazzi, G.
Shashkov, M. J.
TI Isogeometric analysis of Lagrangian hydrodynamics
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Lagrangian hydrodynamics; Shock physics; Isogeometric analysis; NURBS;
Explicit time integration; Symmetry; Energy conservation
ID FINITE-ELEMENT FORMULATION; NAVIER-STOKES EQUATIONS; WIND TURBINE
ROTORS; SHOCK HYDRODYNAMICS; ARTIFICIAL VISCOSITY; 3D SIMULATION;
COMPUTATIONS; APPROXIMATION; REFINEMENT; CONTINUITY
AB Isogeometric analysis of Lagrangian shock hydrodynamics is proposed. The Euler equations of compressible hydrodynamics in the weak form are discretized using Non-Uniform Rational B-Splines (NURBS) in space. The discretization has all the advantages of a higher-order method, with the additional benefits of exact symmetry preservation and better per-degree-of-freedom accuracy. An explicit, second-order accurate time integration procedure, which conserves total energy, is developed and employed to advance the equations in time. The performance of the method is examined on a set of standard 2D and 3D benchmark examples, where good quality of the computational results is attained. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Bazilevs, Y.; Benson, D. J.] Univ Calif San Diego, Dept Struct Engn, San Diego, CA 92123 USA.
[Akkerman, I.] Univ Durham, Sch Engn & Comp Sci, Durham DH1 3LE, England.
[Scovazzi, G.] Duke Univ, Dept Civil & Environm Engn, Durham, NC 27708 USA.
[Shashkov, M. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Bazilevs, Y (reprint author), Univ Calif San Diego, Dept Struct Engn, 9500 Gilman Dr, San Diego, CA 92123 USA.
EM yuri@ucsd.edu; Ido.akkerman@dur.ac.uk; dbenson@ucsd.edu;
gscovaz@sandia.gov; shashkov@lanl.gov
FU National Nuclear Security Administration; U.S. Department of Energy at
Los Alamos National Laboratory [DE-AC52-06NA25396]; DOE Office of
Science Advanced Scientific Computing Research (ASCR); Alamos National
Laboratory (LANL); Advanced Simulation and Computing (ASC) Program at
LANL; UCSD-Los Alamos Educational Collaboration.
FX This work was carried out under the auspices of the National Nuclear
Security Administration of the U.S. Department of Energy at Los Alamos
National Laboratory under Contract No. DE-AC52-06NA25396.; M.J. Shashkov
acknowledges funding by the DOE Office of Science Advanced Scientific
Computing Research (ASCR) Program at the Los Alamos National Laboratory
(LANL). M.J. Shashkov, D.J. Benson, and Y. Bazilevs also acknowledge
funding by the Advanced Simulation and Computing (ASC) Program at LANL.
This work was partially supported by the UCSD-Los Alamos Educational
Collaboration. We also wish to thank Drs. Tz.V. Kolev, V.A. Dobrev, and
R.N. Rieben at the Lawrence Livermore National Laboratory for fruitful
discussions on higher-order methods for Lagrangian hydrodynamics.
NR 51
TC 11
Z9 11
U1 2
U2 18
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUN 15
PY 2013
VL 243
BP 224
EP 243
DI 10.1016/j.jcp.2013.02.021
PG 20
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 145WT
UT WOS:000319050800015
ER
PT J
AU Vay, JL
Haber, I
Godfrey, BB
AF Vay, Jean-Luc
Haber, Irving
Godfrey, Brendan B.
TI A domain decomposition method for pseudo-spectral electromagnetic
simulations of plasmas
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Particle-In-Cell; Spectral; Electromagnetic; Fast fourier transform;
FFT; Domain decomposition; Parallel
ID CHARGE CONSERVATION; ACCELERATORS; INSTABILITY; SOLVERS
AB Pseudo-spectral electromagnetic solvers (i.e. representing the fields in Fourier space) have extraordinary precision. In particular, Haber et al. presented in 1973 a pseudo-spectral solver that integrates analytically the solution over a finite time step, under the usual assumption that the source is constant over that time step. Yet, pseudo-spectral solvers have not been widely used, due in part to the difficulty for efficient parallelization owing to global communications associated with global FFTs on the entire computational domains.
A method for the parallelization of electromagnetic pseudo-spectral solvers is proposed and tested on single electromagnetic pulses, and on Particle-In-Cell simulations of the wakefield formation in a laser plasma accelerator.
The method takes advantage of the properties of the Discrete Fourier Transform, the linearity of Maxwell's equations and the finite speed of light for limiting the communications of data within guard regions between neighboring computational domains.
Although this requires a small approximation, test results show that no significant error is made on the test cases that have been presented.
The proposed method opens the way to solvers combining the favorable parallel scaling of standard finite-difference methods with the accuracy advantages of pseudo-spectral methods. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Vay, Jean-Luc] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Haber, Irving; Godfrey, Brendan B.] Univ Maryland, College Pk, MD 20742 USA.
RP Vay, JL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM jlvay@lbl.gov
RI Godfrey, Brendan/D-8204-2011
OI Godfrey, Brendan/0000-0003-2311-7060
FU US-DOE [DE-AC02-05CH11231]; US-DOE SciDAC program ComPASS
FX We are thankful to C.G.R. Geddes, D.P. Grote and A. Friedman for
valuable comments. Work was supported in part by US-DOE Contracts
DE-AC02-05CH11231 and US-DOE SciDAC program ComPASS.
NR 18
TC 24
Z9 24
U1 0
U2 7
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUN 15
PY 2013
VL 243
BP 260
EP 268
DI 10.1016/j.jcp.2013.03.010
PG 9
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 145WT
UT WOS:000319050800017
ER
PT J
AU Shestakov, AI
AF Shestakov, Aleksei I.
TI Multifrequency radiation diffusion equations for homogeneous,
refractive, lossy media and their interface conditions
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Multifrequency radiation diffusion; Radiation in refractive lossy media;
Radiative effects in translucent media; Radiative interface conditions;
Thermal radiation
ID HEAT-TRANSFER; APPROXIMATIONS; TEMPERATURE; COMPOSITE; SILICA; GLASS
AB We derive time-dependent multifrequency diffusion equations for homogeneous, refractive lossy media. The equations are applicable for a domain composed of several materials with distinct refractive indexes. In such applications, the fundamental radiation variable, the intensity I, is discontinuous across material interfaces. The diffusion equations evolve a variable n, the integral of I over all directions divided by the square of the refractive index. Attention is focused on boundary and internal interface conditions for n. For numerical solutions using finite elements, it is shown that at material interfaces, the usual diffusion coefficient 1/3 kappa of the multifrequency equation, where kappa is the opacity, is modified by a tensor diffusion term consisting of integrals of the reflectivity. Numerical results are presented. For a single material simulation, the xi equations yield the same result as diffusion equations that evolve the spectral radiation energy density. A second simulation solves a test problem that models radiation transport in a domain comprised of materials with different refractive indexes. Results qualitatively agree with those previously published. (C) 2013 Elsevier Inc. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Shestakov, AI (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM shestakov1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC5207NA27344]
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract
DE-AC5207NA27344.
NR 15
TC 1
Z9 1
U1 1
U2 7
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUN 15
PY 2013
VL 243
BP 293
EP 304
DI 10.1016/j.jcp.2013.03.016
PG 12
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 145WT
UT WOS:000319050800019
ER
PT J
AU Venturi, D
Tartakovsky, DM
Tartakovsky, AM
Karniadakis, GE
AF Venturi, D.
Tartakovsky, D. M.
Tartakovsky, A. M.
Karniadakis, G. E.
TI Exact PDF equations and closure approximations for advective-reactive
transport
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE PDF methods; Uncertainty quantification; Heterogeneous reaction;
Stochastic modeling; Geochemistry
ID RANDOMLY HETEROGENEOUS DOMAINS; CONDITIONAL MOMENT EQUATIONS; DEFINITE
QUADRATIC-FORMS; POLYNOMIAL CHAOS; NORMAL VARIABLES; RECURSIVE
APPROXIMATIONS; MODEL REPRESENTATIONS; TRANSIENT FLOW; TURBULENCE;
DECOMPOSITION
AB Mathematical models of advection-reaction phenomena rely on advective flow velocity and (bio) chemical reaction rates that are notoriously random. By using functional integral methods, we derive exact evolution equations for the probability density function (PDF) of the state variables of the advection-reaction system in the presence of random transport velocity and random reaction rates with rather arbitrary distributions. These PDF equations are solved analytically for transport with deterministic flow velocity and a linear reaction rate represented mathematically by a heterogeneous and strongly-correlated random field. Our analytical solution is then used to investigate the accuracy and robustness of the recently proposed large-eddy diffusivity (LED) closure approximation [1]. We find that the solution to the LED-based PDF equation, which is exact for uncorrelated reaction rates, is accurate even in the presence of strong correlations and it provides an upper bound of predictive uncertainty. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Venturi, D.; Karniadakis, G. E.] Brown Univ, Div Appl Math, Providence, RI 02912 USA.
[Tartakovsky, D. M.] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA.
[Tartakovsky, A. M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Karniadakis, GE (reprint author), Brown Univ, Div Appl Math, Providence, RI 02912 USA.
EM daniele_venturi@brown.edu; george_karniadakis@brown.edu
RI Tartakovsky, Daniel/E-7694-2013
FU DOE [DE-FG02-07ER25818]; OSD-MURI [FA9550-09-1-0613]; NSF [DMS-0915077]
FX We acknowledge financial support from DOE (Grant No. DE-FG02-07ER25818),
OSD-MURI (Grant No. FA9550-09-1-0613) and NSF (Grant No. DMS-0915077).
NR 65
TC 12
Z9 12
U1 2
U2 29
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD JUN 15
PY 2013
VL 243
BP 323
EP 343
DI 10.1016/j.jcp.2013.03.001
PG 21
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 145WT
UT WOS:000319050800021
ER
PT J
AU Shet, S
Yan, YF
Turner, J
Al-Jassim, M
AF Shet, Sudhakar
Yan, Yanfa
Turner, John
Al-Jassim, Mowafak
TI Effect of gas ambient and varying RF sputtering power for bandgap
narrowing of mixed (ZnO:GaN) thin films for solar driven hydrogen
production
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE ZnO; RF power; ZnO:GaN; Gas ambient; Photoelectrochemical; Band gap
ID SUBSTRATE-TEMPERATURE; TITANIUM-DIOXIDE; ZNO(AL,N) FILMS; WATER;
PHOTOCATALYSIS; CELLS; TIO2
AB The ZnO and mixed (ZnO:GaN) thin films are synthesized by (RF) magnetron sputtering in Ar and mixed O-2 and N-2 gas ambient at 100 degrees C, followed by post-annealing at 500 degrees C in ammonia for 4 h. The mixed (ZnO:GaN) thin films deposited under Ar gas ambient failed to reduce the bandgap, whereas (ZnO:GaN) thin films grown under mixed O-2 and N-2 gas ambient showed bandgap reduction. The (ZnO:GaN) films deposited under mixed O-2 and N-2 gas exhibited enhanced crystallinity, with shifting the optical absorption into the visible light regions. The bandgap reduction in mixed (ZnO:GaN) thin films is realized by varying the RF power. As a result, mixed (ZnO:GaN) films grown under mixed O-2 and N-2 showed higher photocurrents than the mixed (ZnO:GaN) thin films deposited under Ar gas ambient. Our results indicate that reduced bandgap with enhanced PEC response can be attained using the appropriate gas ambient and by varying the RF power using mixed (ZnO:GaN) films. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Shet, Sudhakar; Turner, John; Al-Jassim, Mowafak] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Shet, Sudhakar] New Jersey Inst Technol, Newark, NJ 07102 USA.
[Yan, Yanfa] Univ Toledo, Toledo, OH 43606 USA.
RP Shet, S (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Sudhakar.Shet@nrel.gov
FU U.S. Department of Energy [DE-AC36-08GO28308]
FX This work was supported by the U.S. Department of Energy under Contract
# DE-AC36-08GO28308.
NR 32
TC 7
Z9 7
U1 5
U2 60
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUN 15
PY 2013
VL 232
BP 74
EP 78
DI 10.1016/j.jpowsour.2013.01.015
PG 5
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 141UU
UT WOS:000318752800011
ER
PT J
AU Pan, WX
Bao, J
Lo, CM
Lai, K
Agarwal, K
Koeppel, BJ
Khaleel, M
AF Pan, Wenxiao
Bao, Jie
Lo, Chaomei
Lai, Kevin
Agarwal, Khushbu
Koeppel, Brian J.
Khaleel, Moe
TI A general approach to develop reduced order models for simulation of
solid oxide fuel cell stacks
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Solid oxide fuel cell; Reduced order modeling; System modeling;
Mathematical modeling; Sensitivity analysis; Responsive surface
ID MULTIELEMENT PROBABILISTIC COLLOCATION; REGRESSION; NETWORKS; BOXPLOT;
PLANTS
AB Numerical models for solid oxide fuel cells (SOFCs) are needed in system modeling studies of fuel cell-based power generation systems. A reduced order modeling approach based on response surface techniques is developed for SOFC stacks. This approach creates a numerical model that can quickly compute desired performance variables of interest based on the stack's input parameter state. The developed method first carefully samples the multidimensional design space based on the input parameter ranges, automatically evaluates an existing detailed stack model at each of the sampled points, and performs regression for selected performance variables of interest to determine the response surfaces. After error analysis to ensure that sufficient accuracy is established for the response surfaces, they are then implemented in a calculator module for use by the system-level software. The benefit of this modeling approach is that it is sufficiently fast for integration with system modeling software while still providing high fidelity information about the internal distributions of key variables in the fuel cell. This paper describes the sampling, regression, sensitivity, error, and principal component analysis to identify the most appropriate methods for simulating a planar SOFC stack. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Pan, Wenxiao; Bao, Jie; Lo, Chaomei; Lai, Kevin; Agarwal, Khushbu; Koeppel, Brian J.; Khaleel, Moe] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Pan, WX (reprint author), Pacific NW Natl Lab, POB 999,MS IN K7-90, Richland, WA 99352 USA.
EM wenxiao.pan@pnnl.gov
OI khaleel, mohammad/0000-0001-7048-0749
FU Solid State Energy Conversion Alliance Core Technology Program by the
U.S. Department of Energy's National Energy Technology Laboratory; U.S.
Department of Energy [DE-AC05-76RL01830]
FX This work was funded as part of the Solid State Energy Conversion
Alliance Core Technology Program by the U.S. Department of Energy's
National Energy Technology Laboratory. PNNL is operated by Battelle for
the U.S. Department of Energy under Contract DE-AC05-76RL01830.
NR 48
TC 7
Z9 7
U1 1
U2 23
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUN 15
PY 2013
VL 232
BP 139
EP 151
DI 10.1016/j.jpowsour.2013.01.057
PG 13
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 141UU
UT WOS:000318752800019
ER
PT J
AU Cheng, JL
Xin, HL
Zheng, HM
Wang, B
AF Cheng, Jianli
Xin, Huolin
Zheng, Haimei
Wang, Bin
TI One-pot synthesis of carbon coated-SnO2/graphene-sheet nanocomposite
with highly reversible lithium storage capability
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium-ion battery; Tin dioxide; Graphene; One-pot synthesis
ID LI-ION BATTERY; SNO2 NEGATIVE ELECTRODE; ANODE MATERIALS;
CHEMICAL-CHANGES; MESOPOROUS SNO2; GRAPHENE PAPER; COMPOSITE;
PERFORMANCE; NANOTUBE; CAPACITY
AB We report a one-pot hydrothermal approach to synthesize carbon coated-SnO2/graphene-sheet (SnO2-C/GNS) nanocomposite. Strong oxidation-reduction reactions to produce GNS by the traditional Hummers' method are avoided. The experiments show that the glucose and tin tetrachloride can intercalate into the thin graphite flake to exfoliate graphite and form SnO2-C/GNS nanocomposite simultaneously during the hydrothermal process. The approach is quite simple and green. Meanwhile, the prepared SnO2-C/GNS nanocomposite as an anode material of lithium-ion batteries exhibits higher lithium storage capacity and better cycling performance compared to SnO2 nanoparticle and SnO2-C microsphere. It still delivers the reversible capacity of 703 mA h g(-1) after 80 cycles at a current density of 100 mA g(-1) and maintains 443 mA h g(-1) after 100 cycles at a current density of 1000 mA g(-1). The improvement in the performance of SnO2-C/GNS nanocomposite can be attributed to the fully confinement of SnO2 nanoparticles between the GNS and the carbon layer, which can effectively prevent the detachment and agglomeration of SnO2 and preserve the integrity of the nanostructure during charge/discharge cycling. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Cheng, Jianli; Wang, Bin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Xin, Huolin; Zheng, Haimei] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Wang, B (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM binwang@lbl.gov
RI cheng, Jianli/K-1496-2014; Cheng, Jianli/K-4478-2014; Xin,
Huolin/E-2747-2010; Wang, Bin/F-9677-2012
OI Xin, Huolin/0000-0002-6521-868X; Wang, Bin/0000-0001-7104-4543
FU National Center for Electron Microscopy, Lawrence Berkeley Lab; U.S.
Department of Energy [DE-AC02-05CH11231]
FX The authors acknowledge support of the National Center for Electron
Microscopy, Lawrence Berkeley Lab, which is supported by the U.S.
Department of Energy under Contract # DE-AC02-05CH11231.
NR 31
TC 56
Z9 58
U1 9
U2 278
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUN 15
PY 2013
VL 232
BP 152
EP 158
DI 10.1016/j.jpowsour.2013.01.025
PG 7
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 141UU
UT WOS:000318752800020
ER
PT J
AU Karthikeyan, K
Amaresh, S
Aravindan, V
Kim, WS
Nam, KW
Yang, XQ
Lee, YS
AF Karthikeyan, K.
Amaresh, S.
Aravindan, V.
Kim, W. S.
Nam, K. W.
Yang, X. Q.
Lee, Y. S.
TI Li(Mn1/3Ni1/3Fe1/3)O-2-Polyaniline hybrids as cathode active material
with ultra-fast charge-discharge capability for lithium batteries
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium batteries; Polyaniline; Layered material; Cobalt free cathode;
High rate
ID LIFEPO4/POLYANILINE COMPOSITE CATHODE; LI-ION BATTERIES; RECHARGEABLE
BATTERIES; SECONDARY BATTERIES; SOLID-STATE; NANOCOMPOSITES; CHEMISTRY;
INSERTION; POLYMERS
AB We first report the ultra-fast charge discharge capability of organic inorganic (Li(Mn1/3Ni1/3Fe1/3)O-2-Polyaniline (PANI)) nanocomposites prepared by mixed hydroxide route and followed by polymerization of aniline monomers with different concentrations (0.1 and 0.2 mol concentration of PANI). Li-insertion properties are evaluated in half-cell configuration, test cell (Li/Li(Mn1/3Ni1/3Fe1/3)O-2-PANI) comprising 0.2 mol. PANI delivered the reversible capacity of similar to 127, similar to 114 and similar to 110 mAh g(-1) at ultra-high current rate of 5, 30 and 40 C, respectively with exceptional cycleability between 2 and 4.5 V vs. Li. Such an exceptional performance is mainly due to the conducting pathways promoted by PANI network and it is revealed by impedance measurements. This result certainly provides the possibility of using such layered type Fe based cathode materials in high power Li-ion batteries to drive zero emission vehicles such as hybrid electric vehicles or electric vehicles applications in near future. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
C1 [Karthikeyan, K.; Amaresh, S.; Aravindan, V.; Lee, Y. S.] Chonnam Natl Univ, Fac Appl Chem Engn, Kwangju 500757, South Korea.
[Aravindan, V.] Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore.
[Kim, W. S.] Daejung EM Co Ltd, Inchon 405820, South Korea.
[Nam, K. W.; Yang, X. Q.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Lee, YS (reprint author), Chonnam Natl Univ, Fac Appl Chem Engn, Kwangju 500757, South Korea.
EM aravind_van@yahoo.com; leeys@chonnam.ac.kr
RI Nam, Kyung-Wan/B-9029-2013; Nam, Kyung-Wan/E-9063-2015;
OI Nam, Kyung-Wan/0000-0001-6278-6369; Nam, Kyung-Wan/0000-0001-6278-6369;
Samuthira Pandian, Amaresh/0000-0002-9203-6865
FU IT R&D program of MKE/KEIT [KI002176]
FX This work was supported by the IT R&D program of MKE/KEIT [KI002176,
Development of 3.6 Ah Class Cylindrical Type Lithium Secondary Battery].
NR 31
TC 20
Z9 22
U1 6
U2 126
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD JUN 15
PY 2013
VL 232
BP 240
EP 245
DI 10.1016/j.jpowsour.2012.12.114
PG 6
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 141UU
UT WOS:000318752800032
ER
PT J
AU von Lilienfeld, OA
AF von Lilienfeld, O. Anatole
TI First Principles View on Chemical Compound Space: Gaining Rigorous
Atomistic Control of Molecular Properties
SO INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
LA English
DT Review
DE chemical space; machine learning; density functional theory; design;
alchemy
ID DENSITY-FUNCTIONAL THEORY; POTENTIAL-ENERGY SURFACES; DERIVATIVE
DISCONTINUITIES; GAUSSIAN PSEUDOPOTENTIALS; NONCOVALENT INTERACTIONS;
DYNAMICS SIMULATIONS; NEURAL-NETWORKS; EXACT EXCHANGE; FORCE-FIELD;
APPROXIMATION
AB A well-defined notion of chemical compound space (CCS) is essential for gaining rigorous control of properties through variation of elemental composition and atomic configurations. Here, we give an introduction to an atomistic first principles perspective on CCS. First, CCS is discussed in terms of variational nuclear charges in the context of conceptual density functional and molecular grand-canonical ensemble theory. Thereafter, we revisit the notion of compound pairs, related to each other via "alchemical" interpolations involving fractional nuclear charges in the electronic Hamiltonian. We address Taylor expansions in CCS, property nonlinearity, improved predictions using reference compound pairs, and the ounce-of-gold prize challenge to linearize CCS. Finally, we turn to machine learning of analytical structure property relationships in CCS. These relationships correspond to inferred, rather than derived through variational principle, solutions of the electronic Schrodinger equation. (C) 2013 Wiley Periodicals, Inc.
C1 [von Lilienfeld, O. Anatole] Argonne Natl Lab, Argonne Leadership Comp Facil, Argonne, IL 60439 USA.
[von Lilienfeld, O. Anatole] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland.
RP von Lilienfeld, OA (reprint author), Argonne Natl Lab, Argonne Leadership Comp Facil, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM anatole@alcf.anl.gov
RI von Lilienfeld, O. Anatole/D-8529-2011
FU Argonne Leadership Computing Facility at Argonne National Laboratory
(Office of Science of the U.S. DOE) [DE-AC02-06CH11357]
FX Contract grant sponsor: Argonne Leadership Computing Facility at Argonne
National Laboratory (Office of Science of the U.S. DOE); Contract grant
number: DE-AC02-06CH11357.
NR 139
TC 34
Z9 34
U1 6
U2 57
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0020-7608
EI 1097-461X
J9 INT J QUANTUM CHEM
JI Int. J. Quantum Chem.
PD JUN 15
PY 2013
VL 113
IS 12
BP 1676
EP 1689
DI 10.1002/qua.24375
PG 14
WC Chemistry, Physical; Mathematics, Interdisciplinary Applications;
Physics, Atomic, Molecular & Chemical
SC Chemistry; Mathematics; Physics
GA 138VL
UT WOS:000318538100002
ER
PT J
AU Jubb, AM
Verreault, D
Posner, R
Criscenti, LJ
Katz, LE
Allen, HC
AF Jubb, Aaron M.
Verreault, Dominique
Posner, Ralf
Criscenti, Louise J.
Katz, Lynn E.
Allen, Heather C.
TI Sulfate adsorption at the buried hematite/solution interface
investigated using total internal reflection (TIR)-Raman spectroscopy
SO JOURNAL OF COLLOID AND INTERFACE SCIENCE
LA English
DT Article
DE Surface spectroscopy; Silica; Hematite; Adsorption; Inner-sphere
ID PHASE OXIDATION-PRODUCTS; RAMAN-SPECTROSCOPY; IRON-OXIDES; SURFACE
COMPLEXATION; AQUEOUS-SOLUTIONS; SUM-FREQUENCY; VIBRATIONAL
SPECTROSCOPY; INFRARED-SPECTROSCOPY; PB(II) SORPTION; IONIC-STRENGTH
AB Sulfate adsorption at buried mineral/solution interfaces is of great interest in geochemistry and atmospheric aerosol chemistry due to the sulfate anion's environmental ubiquity and the wide role of physical and chemical phenomena that it impacts. Here we present the first application of total internal reflection-Raman (TIR-Raman) spectroscopy, a surface-sensitive spectroscopy, to probe sulfate ion behavior at the buried hematite/solution interface. Hematite is the most thermodynamically stable iron oxide polymorph and as such is widely found in nature. Our results demonstrate the feasibility of a TIR-Raman approach to study simple, inorganic anion adsorption at buried interfaces. Moreover, our data suggest that inner-sphere sulfate adsorption proceeds in a bidentate fashion at the hematite surface. These results help clarify long-standing questions as to whether sulfate forms inner-sphere adsorption complexes at hematite surfaces in a mono- or bidentate fashion based on attenuated total reflection-infrared (ATR-IR) observations. Our results are discussed with perspective to this debate and the applicability of TIR-Raman spectroscopy to address ambiguities of ion adsorption to mineral surfaces. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Jubb, Aaron M.; Verreault, Dominique; Posner, Ralf; Allen, Heather C.] Ohio State Univ, Dept Chem & Biochem, Columbus, OH 43210 USA.
[Posner, Ralf] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA.
[Criscenti, Louise J.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87109 USA.
[Katz, Lynn E.] Univ Texas Austin, Coll Engn, Dept Civil Architectural & Environm Engn, Austin, TX 78712 USA.
RP Allen, HC (reprint author), Ohio State Univ, Dept Chem & Biochem, 100 West 18th Ave, Columbus, OH 43210 USA.
EM allen@chemistry.ohio-state.edu
RI Jubb, Aaron/G-4538-2013
OI Jubb, Aaron/0000-0001-6875-1079
FU DOE-BES Geochemistry [DE-FG02-04ER15495, DE-AC04-94AL85000,
DE-FG02-04ER15496]; Feodor-Lynen-Fellowship of the
Alexander-von-Humboldt Foundation; Ohio State University; U.S.
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX A.M. Jubb, D. Verreault, L.J. Criscenti, L.E. Katz, and H.C. Allen
acknowledge the DOE-BES Geochemistry (AMJ, DV, HCA: #DE-FG02-04ER15495;
LJC/Sandia: #DE-AC04-94AL85000; LEK, #DE-FG02-04ER15496) for funding
this work. R. Posner gratefully acknowledges financial support provided
by a Feodor-Lynen-Fellowship of the Alexander-von-Humboldt Foundation
and The Ohio State University. Sandia National Laboratories is a
multi-program laboratory managed and operated by Sandia Corporation, a
wholly owned subsidiary of Lockheed Martin Corporation, for the U.S.
Department of Energy's National Nuclear Security Administration under
contract DE-AC04-94AL85000.
NR 64
TC 8
Z9 8
U1 2
U2 65
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9797
J9 J COLLOID INTERF SCI
JI J. Colloid Interface Sci.
PD JUN 15
PY 2013
VL 400
BP 140
EP 146
DI 10.1016/j.jcis.2013.02.031
PG 7
WC Chemistry, Physical
SC Chemistry
GA 137UX
UT WOS:000318464800019
PM 23562663
ER
PT J
AU Mullin, SA
Teran, AA
Yuan, R
Balsara, NP
AF Mullin, Scott A.
Teran, Alexander A.
Yuan, Rodger
Balsara, Nitash P.
TI Effect of thermal history on the ionic conductivity of block copolymer
electrolytes
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE annealing; block copolymer; ionic conductivity;
polystyrene-block-poly(ethylene oxide); polymer electrolyte;
self-assembly
ID GRAIN-BOUNDARY MORPHOLOGY; POLYMER ELECTROLYTES; MOLECULAR-WEIGHT;
TRANSPORT; MEMBRANES; ALIGNMENT
AB We have studied the effect of thermal history on ionic conductivity of block copolymer electrolytes. Previous work on block copolymer electrolytes composed of polystyrene-b-poly(ethylene oxide) (SEO) and lithium bis(trifluoromethanesulfone) imide (LiTFSI) salt was restricted to lamellar morphologies. This study addresses both cylindrical and lamellar morphologies. The conductivity of low molecular weight samples decreases after they are annealed. In contrast, the conductivity of high molecular weight samples is generally unaffected by annealing. These results are explained in the context of connectivity and composition of the conducting phase. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci. Part B: Polym. Phys. 2013, 51, 927-934
C1 [Mullin, Scott A.; Teran, Alexander A.; Yuan, Rodger; Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Mullin, Scott A.; Teran, Alexander A.; Balsara, Nitash P.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Yuan, Rodger] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Balsara, NP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM nbalsara@berkeley.edu
FU Office of Vehicle Technologies of the U. S. Department of Energy
[DE-AC02-05CH11231]; Office of Science, Office of Basic Energy Sciences,
of the U. S. Department of Energy [DE-AC02-05CH11231]; National Science
Foundation; Tyco Electronics Fellowship
FX The work of S. A. Mullin and A. A. Teran was supported by the Assistant
Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle
Technologies of the U. S. Department of Energy under Contract No.
DE-AC02-05CH11231. Portions of this work were carried out at the
Advanced Light Source at Lawrence Berkeley National Laboratory, which is
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the U. S. Department of Energy under Contract No.
DE-AC02-05CH11231. Additional support for A. A. Teran and S. A. Mullin
was provided by a National Science Foundation Graduate Research
Fellowship and a Tyco Electronics Fellowship, respectively. We
acknowledge Alex Hexemer, Cheng Wang, and Eric Schaible for beamline
support.
NR 24
TC 6
Z9 6
U1 3
U2 70
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-6266
J9 J POLYM SCI POL PHYS
JI J. Polym. Sci. Pt. B-Polym. Phys.
PD JUN 15
PY 2013
VL 51
IS 12
BP 927
EP 934
DI 10.1002/polb.23290
PG 8
WC Polymer Science
SC Polymer Science
GA 142CL
UT WOS:000318773700001
ER
PT J
AU Nayyar, IH
Batista, ER
Tretiak, S
Saxena, A
Smith, DL
Martin, RL
AF Nayyar, Iffat H.
Batista, Enrique R.
Tretiak, Sergei
Saxena, Avadh
Smith, Darryl L.
Martin, Richard L.
TI Effect of trans- and cis-isomeric defects on the localization of the
charged excitations in -conjugated organic polymers
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE conducting polymers; conjugated polymers; quantum chemistry; theory;
UV-vis spectroscopy
ID SOLAR-CELLS; POLY(P-PHENYLENE VINYLENE); ENERGY-TRANSFER; CN-PPV;
STATES; SEMICONDUCTORS; TRANSISTORS; EXCITONS; CHANNEL; DEVICES
AB We use the long-range-corrected hybrid density functional theory models to study the effect of various conformational distortions of weak-trans and strong-cis nature on the spatial localization of charged states in poly(p-phenylene vinylene) (PPV) and its derivative poly[2-methoxy-5-(2-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV). The extent of self-trapping of positive (P+) and negative (P) polarons is observed to be highly sensitive to molecular conformation that, in turn, controls the distribution of atomic charges within the polymers. It is shown that, to reach good agreement with recent experimental data on lattice distortion for P+ and P excitations, the polarization of the medium plays a critical role. The introduction of weak-trans defects along the MEH-PPV chain breaks the observed symmetry for P+ and P excitations. The P states exhibit more spatial localization owing to lattice relaxation than their vacuum counterparts in contrast to P+. These observations suggest higher mobilities of holes than that of electrons in MEH-PPV, in agreement with the experimental observations. The predicted binding, reorganization, and solvation energies for PPV and MEH-PPV are analyzed for this difference in the response behavior of holes and electrons for trans and cis distortions. This study allows for a better understanding of charge-transport and photophysical properties in -conjugated organic materials by analyzing their underlying structureproperty correlations. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2013, 51, 935942
C1 [Nayyar, Iffat H.; Batista, Enrique R.; Tretiak, Sergei; Saxena, Avadh; Smith, Darryl L.; Martin, Richard L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Nayyar, Iffat H.; Batista, Enrique R.; Tretiak, Sergei; Saxena, Avadh; Smith, Darryl L.; Martin, Richard L.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Nayyar, Iffat H.] Univ Cent Florida, NanoSci Technol Ctr, Orlando, FL 32826 USA.
[Nayyar, Iffat H.] Univ Cent Florida, Dept Phys, Orlando, FL 32826 USA.
[Tretiak, Sergei] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Tretiak, S (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM serg@lanl.gov
RI Tretiak, Sergei/B-5556-2009; Nayyar, Iffat/B-4925-2016
OI Tretiak, Sergei/0000-0001-5547-3647; Nayyar, Iffat/0000-0002-0896-5259
FU DOE Office of Basic Energy Sciences (OBES) [08SCPE973]; US Department of
Energy and Los Alamos National Laboratory (LANL); National Nuclear
Security Administration of the U.S. Department of Energy
[DE-AC52-06NA25396]
FX I. H. Nayyar, D. L. Smith, and R. L. Martin acknowledge the support from
the DOE Office of Basic Energy Sciences (OBES) under Work Proposal
Number 08SCPE973. S. Tretiak, A. Saxena, and E. R. Batista acknowledge
the support from the US Department of Energy and Los Alamos National
Laboratory (LANL) Directed Research and Development Funds. Los Alamos
National Laboratory is operated by Los Alamos National Security, LLC,
for the National Nuclear Security Administration of the U.S. Department
of Energy under contract DE-AC52-06NA25396.
NR 50
TC 8
Z9 8
U1 1
U2 67
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-6266
J9 J POLYM SCI POL PHYS
JI J. Polym. Sci. Pt. B-Polym. Phys.
PD JUN 15
PY 2013
VL 51
IS 12
BP 935
EP 942
DI 10.1002/polb.23291
PG 8
WC Polymer Science
SC Polymer Science
GA 142CL
UT WOS:000318773700002
ER
PT J
AU Cho, YH
Jang, D
Yoon, J
Kim, H
Ahn, TK
Nam, KW
Sung, YE
Kim, WS
Lee, YS
Yang, XQ
Yoon, WS
AF Cho, Yong-Hun
Jang, Donghyuk
Yoon, Jeongbae
Kim, Hyunchul
Ahn, Tae Kyu
Nam, Kyung-Wan
Sung, Yung-Eun
Kim, Woo-Seong
Lee, Yun-Sung
Yang, Xiao-Qing
Yoon, Won-Sub
TI Thermal stability of charged LiNi0.5Co0.2Mn0.3O2 cathode for Li-ion
batteries investigated by synchrotron based in situ X-ray diffraction
SO JOURNAL OF ALLOYS AND COMPOUNDS
LA English
DT Article
DE Lithium battery; Thermal stability; High nickel layered compounds; In
situ X-ray diffraction; Phase transition
ID TIME-RESOLVED XRD; ELECTROCHEMICAL PROPERTIES; SYNTHETIC OPTIMIZATION;
DECOMPOSITION; COPRECIPITATION; TEMPERATURE; IMPROVEMENT; ELECTRODES;
BEHAVIOR; SAFETY
AB Structural changes for LiNi0.5Co0.2Mn0.3O2 cathode material of lithium-ion battery with and without electrolyte during heating from 25 to 600 degrees C are investigated using synchrotron based in situ X-ray diffraction. LiNi0.5Co0.2Mn0.3O2 without electrolyte first converts from a layered structure to disordered LiM2O4-type spinel and M3O4-type spinel phase as the temperature increases, then two different types of disordered spinel phases are co-existed up to 600 degrees C and no further decomposition to MO-type rock salt phase is presented at all. The electrolyte accelerates the thermal decomposition of the charged cathode materials. The presence of the electrolyte alters the paths of the structural changes and lowers the onset temperatures of the thermal decomposition reactions. In the case of LiNi0.5Co0.2Mn0.3O2 with electrolyte, more dramatic structural changes are observed compared with LiNi0.5Co0.2Mn0.3O2 without electrolyte and MO-type rock salt phase and metallic phase are presented at the end of the heating. (C) 2013 Elsevier B. V. All rights reserved.
C1 [Cho, Yong-Hun] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea.
[Jang, Donghyuk; Yoon, Jeongbae; Kim, Hyunchul; Ahn, Tae Kyu; Yoon, Won-Sub] Sungkyunkwan Univ, Dept Energy Sci, Gyeonggi Do 440746, South Korea.
[Nam, Kyung-Wan; Yang, Xiao-Qing] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Sung, Yung-Eun] Seoul Natl Univ, Coll Engn, Sch Chem & Biol Engn, World Class Univ WCU Program Chem Convergence Ene, Seoul 151744, South Korea.
[Kim, Woo-Seong] Daejung EM Co Ltd, Inchon 405820, South Korea.
[Lee, Yun-Sung] Chonnam Natl Univ, Fac Appl Chem Engn, Kwangju 500757, South Korea.
RP Yoon, WS (reprint author), Sungkyunkwan Univ, Dept Energy Sci, 300 Suwon Si, Gyeonggi Do 440746, South Korea.
EM wsyoon@skku.edu
RI Nam, Kyung-Wan/B-9029-2013; Ahn, Tae/A-5838-2013; Yoon,
Won-Sub/H-2343-2011; Nam, Kyung-Wan/E-9063-2015; Kim,
Hyunchul/D-4426-2017
OI Nam, Kyung-Wan/0000-0001-6278-6369; Nam, Kyung-Wan/0000-0001-6278-6369;
Kim, Hyunchul/0000-0002-8006-9504
FU IT R&D program of the KEIT [KI0018-10039182, 10041856]; Ministry of
Knowledge Economy; Fundamental R&D Program for Technology of World
Premier Materials and Energy Efficiency & Resources of Ministry of
Knowledge Economy [2010T100200295]; U.S. Department of Energy; Assistant
Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle
Technologies [DEAC02-98CH10886]; National Research Foundation; Korean
Government [MEST: NRF-2010-0029065, R31-2008-10029]
FX This work was supported by the IT R&D program (KI0018-10039182,
10041856) of the KEIT funded by the Ministry of Knowledge Economy. This
work was also supported by the Fundamental R&D Program for Technology of
World Premier Materials and Energy Efficiency & Resources
(2010T100200295) of Ministry of Knowledge Economy. The work done at
Brookhaven National Lab. was supported by the U.S. Department of Energy,
the Assistant Secretary for Energy Efficiency and Renewable Energy,
Office of Vehicle Technologies under Contract Number DEAC02-98CH10886.
This work was partly supported by the National Research Foundation
funded by the Korean Government (MEST: NRF-2010-0029065 &
R31-2008-10029).
NR 32
TC 21
Z9 22
U1 2
U2 182
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-8388
EI 1873-4669
J9 J ALLOY COMPD
JI J. Alloy. Compd.
PD JUN 15
PY 2013
VL 562
BP 219
EP 223
DI 10.1016/j.jallcom.2013.02.060
PG 5
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 121TZ
UT WOS:000317268500035
ER
PT J
AU Lin, GY
Tarasevich, B
AF Lin, Genyao
Tarasevich, Barbara
TI Photopolymerized hydrogel composites from poly(ethylene glycol) and
hydroxyapatite for controlled protein delivery in vitro
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE composites; drug delivery systems; photopolymerization; biomaterials;
stimuli-sensitive hydrogels
ID TISSUE ENGINEERING APPLICATIONS; PEG HYDROGELS; SWOLLEN MEMBRANES;
SOLUTE DIFFUSION; SMART HYDROGELS; RELEASE; NANOPARTICLES; BIOMATERIALS;
PERMEABILITY; SENSORS
AB The incorporation of hard particles into soft hydrogels can improve the mechanical properties and provide necessary bioactivity to the hydrogels for desired biomedical applications. Hydrogel composites containing hydroxyapatite (HA) are promising materials for orthopedic applications. In this study, injectable poly(ethylene glycol) (PEG) hydrogel precursor solutions containing HA particles and model protein bovine serum albumin (BSA) were synthesized in situ by photopolymerization. In vitro BSA release properties from the hydrogel composites containing various amounts of HA were investigated and discussed. Fourier transform infrared spectroscopy and scanning electron microscopy were employed to investigate the interaction between HA and the hydrogel network and the morphology of the hydrogel composites. It is found that PEG hydrogel composites containing HA sustained the release of BSA for at least 5 days and the presence of HA slowed down BSA release. Photopolymerized hydrogel composites containing HA may find potential use as a drug delivery matrix for orthopedic tissue engineering. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
C1 [Lin, Genyao; Tarasevich, Barbara] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Lin, GY (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM genyao.lin@pnnl.gov
RI Lin, Genyao /G-1062-2011
FU Battelle Pacific Northwest Division's Independent Research and
Development Program; Washington State Life Sciences Discovery Fund;
DOE-OBER at PNNL
FX This project was supported by Battelle Pacific Northwest Division's
Independent Research and Development Program and the Washington State
Life Sciences Discovery Fund. A portion of the research was performed in
the EMSL, a national scientific user facility sponsored by the DOE-OBER
at PNNL. Authors are grateful to Laxmikant Saraf for performing the SEM
study.
NR 42
TC 5
Z9 6
U1 3
U2 142
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0021-8995
J9 J APPL POLYM SCI
JI J. Appl. Polym. Sci.
PD JUN 15
PY 2013
VL 128
IS 6
BP 3534
EP 3539
DI 10.1002/app.38560
PG 6
WC Polymer Science
SC Polymer Science
GA 113UY
UT WOS:000316696000005
ER
PT J
AU Bohlin, A
Kliewer, CJ
AF Bohlin, Alexis
Kliewer, Christopher J.
TI Communication: Two-dimensional gas-phase coherent anti-Stokes Raman
spectroscopy (2D-CARS): Simultaneous planar imaging and multiplex
spectroscopy in a single laser shot
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID ROTATIONAL CARS; SCATTERING; TEMPERATURE; THERMOMETRY; MICROSCOPY;
FLAMES; GENERATION; PROBE; N-2
AB Coherent anti-Stokes Raman spectroscopy (CARS) has been widely used as a powerful tool for chemical sensing, molecular dynamics measurements, and rovibrational spectroscopy since its development over 30 years ago, finding use in fields of study as diverse as combustion diagnostics, cell biology, plasma physics, and the standoff detection of explosives. The capability for acquiring resolved CARS spectra in multiple spatial dimensions within a single laser shot has been a long-standing goal for the study of dynamical processes, but has proven elusive because of both phase-matching and detection considerations. Here, by combining new phase matching and detection schemes with the high efficiency of femtosecond excitation of Raman coherences, we introduce a technique for single-shot two-dimensional (2D) spatial measurements of gas phase CARS spectra. We demonstrate a spectrometer enabling both 2D plane imaging and spectroscopy simultaneously, and present the instantaneous measurement of 15 000 spatially correlated rotational CARS spectra in N-2 and air over a 2D field of 40 mm(2). (C) 2013 AIP Publishing LLC.
C1 [Bohlin, Alexis; Kliewer, Christopher J.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
RP Kliewer, CJ (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
EM cjkliew@sandia.gov
RI Kliewer, Christopher/E-4070-2010; Bohlin, Alexis/L-8973-2015
OI Kliewer, Christopher/0000-0002-2661-1753; Bohlin,
Alexis/0000-0003-4383-8332
NR 35
TC 24
Z9 24
U1 1
U2 46
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JUN 14
PY 2013
VL 138
IS 22
AR 221101
DI 10.1063/1.4810876
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 168AC
UT WOS:000320675800001
PM 23781772
ER
PT J
AU Nelson, T
Fernandez-Alberti, S
Roitberg, AE
Tretiak, S
AF Nelson, Tammie
Fernandez-Alberti, Sebastian
Roitberg, Adrian E.
Tretiak, Sergei
TI Nonadiabatic excited-state molecular dynamics: Treatment of electronic
decoherence
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID UNIDIRECTIONAL ENERGY-TRANSFER; BORN-OPPENHEIMER TRAJECTORIES;
CONJUGATED MOLECULES; QUANTUM DECOHERENCE; PROTON-TRANSFER; SIMULATIONS;
COHERENCE; DECAY; IMPLEMENTATION; EXCITATIONS
AB Within the fewest switches surface hopping (FSSH) formulation, a swarm of independent trajectories is propagated and the equations of motion for the quantum coefficients are evolved coherently along each independent nuclear trajectory. That is, the phase factors, or quantum amplitudes, are retained. At a region of strong coupling, a trajectory can branch into multiple wavepackets. Directly following a hop, the two wavepackets remain in a region of nonadiabatic coupling and continue exchanging population. After these wavepackets have sufficiently separated in phase space, they should begin to evolve independently from one another, the process known as decoherence. Decoherence is not accounted for in the standard surface hopping algorithm and leads to internal inconsistency. FSSH is designed to ensure that at any time, the fraction of classical trajectories evolving on each quantum state is equal to the average quantum probability for that state. However, in many systems this internal consistency requirement is violated. Treating decoherence is an inherent problem that can be addressed by implementing some form of decoherence correction to the standard FSSH algorithm. In this study, we have implemented two forms of the instantaneous decoherence procedure where coefficients are reinitialized following hops. We also test the energy-based decoherence correction (EDC) scheme proposed by Granucci et al. and a related version where the form of the decoherence time is taken from Truhlar's Coherent Switching with Decay of Mixing method. The sensitivity of the EDC results to changes in parameters is also evaluated. The application of these computationally inexpensive ad hoc methods is demonstrated in the simulation of nonradiative relaxation in two conjugated oligomer systems, specifically poly-phenylene vinylene and poly-phenylene ethynylene. We find that methods that have been used successfully for treating small systems do not necessarily translate to large polyatomic systems and their success depends on the particular system under study. (C) 2013 AIP Publishing LLC.
C1 [Nelson, Tammie; Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Ctr Nonlinear Studies CNLS, Los Alamos, NM 87545 USA.
[Nelson, Tammie; Tretiak, Sergei] Los Alamos Natl Lab, Ctr Integrated Nanotechnol CINT, Los Alamos, NM 87545 USA.
[Fernandez-Alberti, Sebastian] Univ Nacl Quilmes, Bernal, Buenos Aires, Argentina.
[Roitberg, Adrian E.] Univ Florida, Dept Phys, Quantum Theory Project, Gainesville, FL 32611 USA.
[Roitberg, Adrian E.] Univ Florida, Dept Chem, Quantum Theory Project, Gainesville, FL 32611 USA.
RP Nelson, T (reprint author), Los Alamos Natl Lab, Div Theoret, Ctr Nonlinear Studies CNLS, Los Alamos, NM 87545 USA.
RI Tretiak, Sergei/B-5556-2009; Roitberg, Adrian/A-2378-2009
OI Tretiak, Sergei/0000-0001-5547-3647;
FU Directed Research and Development Fund at Los Alamos National Laboratory
(LANL); CONICET; UNQ; ANPCIT [PICT-2010-2375]; NSF [CHE-0239120,
CHE-0808910]; National Nuclear Security Administration of the U.S.
Department of Energy [DE-AC52-06NA25396]; Center for Integrated
Nanotechnology (CINT); Center for Nonlinear Studies (CNLS)
FX T.N. and S.T. acknowledge support of Directed Research and Development
Fund at Los Alamos National Laboratory (LANL). A.E.R. and S.F.-A.
acknowledge supported from CONICET, UNQ, ANPCIT
(PICT-2010-2375), NSF Grant Nos. CHE-0239120 and CHE-0808910. Los Alamos
National Laboratory is operated by Los Alamos National Security, LLC,
for the National Nuclear Security Administration of the U.S. Department
of Energy under Contract No. DE-AC52-06NA25396. We acknowledge support
of Center for Integrated Nanotechnology (CINT) and Center for Nonlinear
Studies (CNLS).
NR 46
TC 31
Z9 31
U1 0
U2 47
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JUN 14
PY 2013
VL 138
IS 22
AR 224111
DI 10.1063/1.4809568
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 168AC
UT WOS:000320675800016
PM 23781787
ER
PT J
AU Fredenburg, DA
Thadhani, NN
AF Fredenburg, D. A.
Thadhani, N. N.
TI Predicting the shock compression response of heterogeneous powder
mixtures
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CERAMIC POWDERS; COMPACTION; EQUATION; MODEL; STATE; DENSIFICATION;
BEHAVIOR
AB A model framework for predicting the dynamic shock-compression response of heterogeneous powder mixtures using readily obtained measurements from quasi-static tests is presented. Low-strain-rate compression data are first analyzed to determine the region of the bulk response over which particle rearrangement does not contribute to compaction. This region is then fit to determine the densification modulus of the mixture, sigma(D), an newly defined parameter describing the resistance of the mixture to yielding. The measured densification modulus, reflective of the diverse yielding phenomena that occur at the meso-scale, is implemented into a rate-independent formulation of the P-alpha model, which is combined with an isobaric equation of state to predict the low and high stress dynamic compression response of heterogeneous powder mixtures. The framework is applied to two metal + metal-oxide (thermite) powder mixtures, and good agreement between the model and experiment is obtained for all mixtures at stresses near and above those required to reach full density. At lower stresses, rate-dependencies of the constituents, and specifically those of the matrix constituent, determine the ability of the model to predict the measured response in the incomplete compaction regime. (C) 2013 AIP Publishing LLC.
C1 [Fredenburg, D. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Thadhani, N. N.] Georgia Inst Technol, Atlanta, GA 30332 USA.
RP Fredenburg, DA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM dafreden@lanl.gov
FU Defense Threat Reduction Agency [HDTRA1-07-1-0018]; National Nuclear
Security Administration of the U.S. Department of Energy
[DE-AC52-06NA25396]
FX The authors would like to thank the Defense Threat Reduction Agency for
funding this research through Grant No. HDTRA1-07-1-0018 and
specifically Dr. Suhithi Peiris. Los Alamos National Laboratory is an
affirmative action/equal opportunity employer operated by Los Alamos
National Security, LLC, for the National Nuclear Security Administration
of the U.S. Department of Energy under Contract DE-AC52-06NA25396.
NR 27
TC 4
Z9 4
U1 2
U2 28
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 14
PY 2013
VL 113
IS 22
AR 223513
DI 10.1063/1.4810929
PG 9
WC Physics, Applied
SC Physics
GA 167ZX
UT WOS:000320675300015
ER
PT J
AU Ho, JCS
Storm, P
Rydstrom, A
Ben, BW
Alsin, F
Sullivan, L
Ambite, I
Mok, KH
Northen, T
Svanborg, C
AF Ho, James C. S.
Storm, Petter
Rydstrom, Anna
Ben Bowen
Alsin, Fredrik
Sullivan, Louise
Ambite, Ines
Mok, K. H.
Northen, Trent
Svanborg, Catharina
TI Lipids as Tumoricidal Components of Human alpha-Lactalbumin Made Lethal
to Tumor Cells (HAMLET) UNIQUE AND SHARED EFFECTS ON SIGNALING AND DEATH
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID FATTY-ACID UPTAKE; APOPTOSIS-LIKE MECHANISM; AP2 GENE-EXPRESSION;
OLEIC-ACID; CYTOTOXIC COMPLEXES; FOURIER HOLOGRAPHY; EQUINE LYSOZYME;
CANCER; PROTEIN; METABOLISM
AB Long-chain fatty acids are internalized by receptor-mediated mechanisms or receptor-independent diffusion across cytoplasmic membranes and are utilized as nutrients, building blocks, and signaling intermediates. Here we describe how the association of long-chain fatty acids to a partially unfolded, extracellular protein can alter the presentation to target cells and cellular effects. HAMLET ( human alpha-lactalbumin made lethal to tumor cells) is a tumoricidal complex of partially unfolded alpha-lactalbumin and oleic acid (OA). As OA lacks independent tumoricidal activity at concentrations equimolar to HAMLET, the contribution of the lipid has been debated. We show by natural abundance C-13 NMR that the lipid in HAMLET is deprotonated and by chromatography that oleate rather than oleic acid is the relevant HAMLET constituent. Compared with HAMLET, oleate ( 175 mu M) showed weak effects on ion fluxes and gene expression. Unlike HAMLET, which causes metabolic paralysis, fatty acid metabolites were less strongly altered. The functional overlap increased with higher oleate concentrations ( 500 mu M). Cellular responses to OA were weak or absent, suggesting that deprotonation favors cellular interactions of fatty acids. Fatty acids may thus exert some of their essential effects on host cells when in the deprotonated state and when presented in the context of a partially unfolded protein.
C1 [Svanborg, Catharina] Lund Univ, Inst Lab Med, Dept Microbiol Immunol & Glycobiol MIG, S-22362 Lund, Sweden.
[Ben Bowen; Alsin, Fredrik; Northen, Trent] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Sullivan, Louise; Mok, K. H.] Trinity Coll Dublin, Inst Biomed Sci, Coll Green, Dublin 2, Ireland.
RP Svanborg, C (reprint author), Lund Univ, Inst Lab Med, Dept Microbiol Immunol & Glycobiol MIG, Solvegatan 23, S-22362 Lund, Sweden.
EM catharina.svanborg@med.lu.se
FU National Institutes of Health [U54 CA 112970]; Sharon D. Lund Foundation
grant; American Cancer Society; Swedish Cancer Society; Medical Faculty
(Lund University); Soderberg Foundation; Segerfalk Foundation; Anna-Lisa
and Sven-Erik Lundgren Foundation for Medical Research; Knut and Alice
Wallenberg Foundation; Lund City Jubileumsfond; John and Augusta Persson
Foundation for Medical Research; Maggie Stephens Foundation; Gunnar
Nilsson Cancer Foundation; Inga-Britt and Arne Lundberg Foundation; HJ
Forssman Foundation for Medical Research; Royal Physiographic Society;
Danish Council for Independent Research (Medical Sciences)
FX This work was supported, in whole or in part, by National Institutes of
Health Grant U54 CA 112970. This study was also supported by a Sharon D.
Lund Foundation grant and by the American Cancer Society, the Swedish
Cancer Society, the Medical Faculty (Lund University), the Soderberg
Foundation, the Segerfalk Foundation, the Anna-Lisa and Sven-Erik
Lundgren Foundation for Medical Research, the Knut and Alice Wallenberg
Foundation, the Lund City Jubileumsfond, the John and Augusta Persson
Foundation for Medical Research, the Maggie Stephens Foundation, the
Gunnar Nilsson Cancer Foundation, the Inga-Britt and Arne Lundberg
Foundation, and the HJ Forssman Foundation for Medical Research and the
Royal Physiographic Society. Support was also obtained from the Danish
Council for Independent Research (Medical Sciences).
NR 58
TC 10
Z9 10
U1 0
U2 15
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JUN 14
PY 2013
VL 288
IS 24
BP 17460
EP 17471
DI 10.1074/jbc.M113.468405
PG 12
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 164AH
UT WOS:000320380600038
PM 23629662
ER
PT J
AU Lennartsson, T
Clementson, J
Beiersdorfer, P
AF Lennartsson, Thomas
Clementson, Joel
Beiersdorfer, Peter
TI Experimental wavelengths for intrashell transitions in tungsten ions
with partially filled 3p and 3d subshells
SO PHYSICAL REVIEW A
LA English
DT Article
ID ENERGY-LEVEL SCHEME; MANY-BODY CALCULATIONS; HIGHLY-CHARGED IONS;
FLEXIBLE ATOMIC CODE; AL-LIKE IONS; X-RAY; ISOELECTRONIC SEQUENCE;
LIFETIME MEASUREMENTS; ELECTRON ATOMS; HE-LIKE
AB Spectra and measured wavelengths of intrashell n = 3 transitions in highly charged tungsten ions with partially filled 3p and 3d valence shells, Al-like W61+ through Fe-like W48+, are presented. The ions were created and excited at the electron-beam ion-trap facility at the Lawrence Livermore National Laboratory and measured with a high-resolution grazing-incidence spectrometer. The spectral lines were studied in the 27-41 angstrom range and were analyzed by a comparison with synthetic spectra based on a collisional-radiative model. We determined that the emission includes not only electric-dipole-allowed transitions, but also several electric-quadrupole and magnetic-dipole transitions. Line-position uncertainties as low as 25 ppm were achieved. Thus, our measurements provide much-needed benchmarks for calculations of the atomic structure of highly charged ions with a partially filled subshell, since these ions are difficult to calculate due to electron-correlation effects.
C1 [Lennartsson, Thomas] Lund Observ, SE-22100 Lund, Sweden.
[Clementson, Joel; Beiersdorfer, Peter] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Lennartsson, T (reprint author), Lund Observ, Box 43, SE-22100 Lund, Sweden.
EM beiersdorfer1@llnl.gov
FU United States Department of Energy [DE-AC52-07NA27344]; Swedish Energy
Agency [P3015-2]
FX Work at Lawrence Livermore National Laboratory was performed under the
auspices of the United States Department of Energy under Contract No.
DE-AC52-07NA27344. The work was carried out as part of the Livermore
WOLFRAM Project and the International Atomic Energy Agency (IAEA)
Coordinated Research Project "Spectroscopic and Collisional Data for
Tungsten from 1 eV to 20 keV." T. L. would like to acknowledge funding
from Swedish Energy Agency Grant No. P3015-2.
NR 52
TC 12
Z9 12
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 14
PY 2013
VL 87
IS 6
AR UNSP 062505
DI 10.1103/PhysRevA.87.062505
PG 7
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 164CG
UT WOS:000320385800001
ER
PT J
AU Hojjati, A
Kim, AG
Linder, EV
AF Hojjati, Alireza
Kim, Alex G.
Linder, Eric V.
TI Robust strong lensing time delay estimation
SO PHYSICAL REVIEW D
LA English
DT Article
ID HUBBLE CONSTANT; GRAVITATIONAL LENSES; HE 0435-1223; COSMOGRAIL;
PRECISION
AB Strong gravitational lensing of time variable sources such as quasars and supernovae creates observable time delays between the multiple images. Time delays can provide a powerful cosmographic probe through the "time-delay distance'' involving the ratio of lens, source, and lens-source distances. However, light curves of lensed images have measurement gaps, noise, systematics such as microlensing from substructure along an image line of sight, and no a priori functional model, making robust time-delay estimation challenging. Using Gaussian process techniques, we demonstrate success in accurate blind reconstruction of time delays and reduction in uncertainties for real data.
C1 [Hojjati, Alireza; Linder, Eric V.] Ewha Womans Univ, Inst Early Universe WCU, Seoul 120750, South Korea.
[Kim, Alex G.; Linder, Eric V.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Linder, Eric V.] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA.
RP Hojjati, A (reprint author), Ewha Womans Univ, Inst Early Universe WCU, Seoul 120750, South Korea.
FU World Class University through the National Research Foundation,
Ministry of Education, Science and Technology of Korea
[R32-2009-000-10130-0]; Office of Science, Office of High Energy
Physics, of the U.S. Department of Energy [DE-AC02-05CH11231]
FX We thank Chris Fassnacht for providing light curve data, Chris Kochanek
for discussions on the DRW approach to intrinsic light curves, and Arman
Shafieloo for discussions on GP code methodology. A. H. acknowledges the
Berkeley Center for Cosmological Physics for hospitality. This work has
been supported by World Class University Grant No. R32-2009-000-10130-0
through the National Research Foundation, Ministry of Education, Science
and Technology of Korea and the Director, Office of Science, Office of
High Energy Physics, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 27
TC 13
Z9 13
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 14
PY 2013
VL 87
IS 12
AR 123512
DI 10.1103/PhysRevD.87.123512
PG 6
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 164ER
UT WOS:000320392200002
ER
PT J
AU Clerouin, J
Robert, G
Arnault, P
Kress, JD
Collins, LA
AF Clerouin, Jean
Robert, Gregory
Arnault, Philippe
Kress, Joel D.
Collins, Lee A.
TI Behavior of the coupling parameter under isochoric heating in a high-Z
plasma
SO PHYSICAL REVIEW E
LA English
DT Article
ID ONE-COMPONENT PLASMA; DENSE IONIZED MATTER; MOLECULAR-DYNAMICS;
STATISTICAL-MECHANICS
AB The ion-ion coupling parameter Gamma is estimated for tungsten along the rho = 40 g/cm(3) isochore corresponding to twice the normal density with temperatures ranging from 10 eV to 5 keV. Using a variety of approaches from a spherical Thomas-Fermi ion to a full three-dimensional orbital-free method, we show that along an isochore the effective ionic coupling parameter is almost constant over a wide range of temperatures ( in our case Gamma similar or equal to 20) due to the competition between rising temperatures and increased ionization. This Gamma-plateau effect depends on the chosen density and is well delineated at normal density but almost disappears at five times the normal density. This effect could be used to obtain well-defined and predictable experimental conditions.
C1 [Clerouin, Jean; Robert, Gregory; Arnault, Philippe] CEA, DAM, DIF, F-91297 Arpajon, France.
[Kress, Joel D.; Collins, Lee A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Clerouin, J (reprint author), CEA, DAM, DIF, F-91297 Arpajon, France.
EM jean.clerouin@cea.fr
RI Clerouin, jean/D-8528-2015
OI Clerouin, jean/0000-0003-2144-2759
FU US Department of Energy [DE-AC52-06NA25396]
FX This work has been done under NNSA/DAM Collaborative Agreement No. P184.
L. Gremillet is acknowledged for important information on experiments,
and A. Decoster and M. Koenig are thanked for valuable discussions on
ionization. We especially thank Flavien Lambert for providing his OFMD
code and Dominique Gilles for his OCP pair distribution functions code.
The Los Alamos National Laboratory is operated by Los Alamos National
Security, LLC for the National Nuclear Security Administration of the US
Department of Energy under Contract No. DE-AC52-06NA25396.
NR 25
TC 14
Z9 14
U1 0
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 14
PY 2013
VL 87
IS 6
AR 061101
DI 10.1103/PhysRevE.87.061101
PG 5
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 164EX
UT WOS:000320392900002
PM 23848620
ER
PT J
AU Jacob, RE
Carson, JP
Thomas, M
Einstein, DR
AF Jacob, Richard E.
Carson, James P.
Thomas, Mathew
Einstein, Daniel R.
TI Dynamic Multiscale Boundary Conditions for 4D CT of Healthy and
Emphysematous Rats
SO PLOS ONE
LA English
DT Article
ID COMPUTATIONAL FLUID-DYNAMICS; IMAGING TELL US; COMPUTED-TOMOGRAPHY;
REGIONAL VENTILATION; PARTICLE DEPOSITION; SURFACE-TENSION; VOLUME
CHANGE; LUNG INJURY; B-SPLINE; REGISTRATION
AB Changes in the shape of the lung during breathing determine the movement of airways and alveoli, and thus impact airflow dynamics. Modeling airflow dynamics in health and disease is a key goal for predictive multiscale models of respiration. Past efforts to model changes in lung shape during breathing have measured shape at multiple breath-holds. However, breath-holds do not capture hysteretic differences between inspiration and expiration resulting from the additional energy required for inspiration. Alternatively, imaging dynamically - without breath-holds - allows measurement of hysteretic differences. In this study, we acquire multiple micro-CT images per breath (4DCT) in live rats, and from these images we develop, for the first time, dynamic volume maps. These maps show changes in local volume across the entire lung throughout the breathing cycle and accurately predict the global pressure-volume (PV) hysteresis. Male Sprague-Dawley rats were given either a full- or partial-lung dose of elastase or saline as a control. After three weeks, 4DCT images of the mechanically ventilated rats under anesthesia were acquired dynamically over the breathing cycle (11 time points, <= 100 ms temporal resolution, 8 cmH(2)O peak pressure). Non-rigid image registration was applied to determine the deformation gradient - a numerical description of changes to lung shape - at each time point. The registration accuracy was evaluated by landmark identification. Of 67 landmarks, one was determined misregistered by all three observers, and 11 were determined misregistered by two observers. Volume change maps were calculated on a voxel-by-voxel basis at all time points using both the Jacobian of the deformation gradient and the inhaled air fraction. The calculated lung PV hysteresis agrees with pressure-volume curves measured by the ventilator. Volume maps in diseased rats show increased compliance and ventilation heterogeneity. Future predictive multiscale models of rodent respiration may leverage such volume maps as boundary conditions.
C1 [Jacob, Richard E.; Carson, James P.; Thomas, Mathew; Einstein, Daniel R.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Jacob, RE (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM richard.jacob@pnnl.gov
FU National Heart, Lung, and Blood Institute [R01HL073598]; PNNL through
internal Laboratory Directed Research and Development LDRD
[DE-AC05-76RL01830]
FX This project was supported by Award Number R01HL073598 from the National
Heart, Lung, and Blood Institute and by PNNL through internal Laboratory
Directed Research and Development LDRD DE-AC05-76RL01830. The funders
had no role in study design, data collection and analysis, decision to
publish, or preparation of the manuscript.
NR 55
TC 6
Z9 6
U1 0
U2 9
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 14
PY 2013
VL 8
IS 6
AR e65874
DI 10.1371/journal.pone.0065874
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 163UV
UT WOS:000320363300049
PM 23799057
ER
PT J
AU van Veenendaal, M
AF van Veenendaal, Michel
TI Ultrafast photoinduced insulator-to-metal transitions in vanadium
dioxide
SO PHYSICAL REVIEW B
LA English
DT Article
ID DENSITY-WAVE; MANGANITE; PHASE
AB An explanation is given for the ultrafast insulator-to-metal transition in VO2 following photoexcitation. The photoinduced orbital imbalance induces a coherent motion of the V-V dimers affecting the electronic structure. After the closing of the gap, Boltzmann scattering equilibrates the electron densities. If the electron density exceeds a critical value, a phase transition occurs to the metallic state. The model explains several key features, such as a structural bottleneck, coherent structural motion combined with phase shifts in the oscillation, the absence of ultrafast metal-to-insulator transitions, and the need for a critical fluency.
C1 [van Veenendaal, Michel] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[van Veenendaal, Michel] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP van Veenendaal, M (reprint author), No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
FU US Department of Energy ( DOE), Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering [DE-FG02-03ER46097]; RIXS
collaboration as part of the Computational Materials Science and
Chemistry Network [DE-FG02-08ER46540]; NIU's Institute for Nanoscience,
Engineering, and Technology; US DOE, Office of Science, Office of Basic
Energy Sciences [DE-AC02-06CH11357]
FX This work was supported by the US Department of Energy ( DOE), Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering
under Award No. DE-FG02-03ER46097, the RIXS collaboration as part of the
Computational Materials Science and Chemistry Network under Grant No.
DE-FG02-08ER46540, and NIU's Institute for Nanoscience, Engineering, and
Technology. Work at Argonne National Laboratory was supported by the US
DOE, Office of Science, Office of Basic Energy Sciences, under Contract
No. DE-AC02-06CH11357.
NR 27
TC 13
Z9 13
U1 2
U2 61
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 14
PY 2013
VL 87
IS 23
AR 235118
DI 10.1103/PhysRevB.87.235118
PG 6
WC Physics, Condensed Matter
SC Physics
GA 164DX
UT WOS:000320390200001
ER
PT J
AU Pomerantz, I
Ilieva, Y
Gilman, R
Higinbotham, DW
Piasetzky, E
Strauch, S
Adhikari, KP
Aghasyan, M
Allada, K
Amaryan, MJ
Pereira, SA
Anghinolfi, M
Baghdasaryan, H
Ball, J
Baltzell, NA
Battaglieri, M
Batourine, V
Beck, A
Beck, S
Bedlinskiy, I
Berman, BL
Biselli, AS
Boeglin, W
Bono, J
Bookwalter, C
Boiarinov, S
Briscoe, WJ
Brooks, WK
Bubis, N
Burkert, V
Camsonne, A
Canan, M
Carman, DS
Celentano, A
Chandavar, S
Charles, G
Chirapatpimol, K
Cisbani, E
Cole, PL
Contalbrigo, M
Crede, V
Cusanno, F
D'Angelo, A
Daniel, A
Dashyan, N
de Jager, CW
De Vita, R
De Sanctis, E
Deur, A
Djalali, C
Dodge, GE
Doughty, D
Dupre, R
Dutta, C
Egiyan, H
El Alaoui, A
El Fassi, L
Eugenio, P
Fedotov, G
Fegan, S
Fleming, JA
Fradi, A
Garibaldi, F
Geagla, O
Gevorgyan, N
Giovanetti, KL
Girod, FX
Glister, J
Goetz, JT
Gohn, W
Golovatch, E
Gothe, RW
Griffioen, KA
Guegan, B
Guidal, M
Guo, L
Hafidi, K
Hakobyan, H
Harrison, N
Heddle, D
Hicks, K
Ho, D
Holtrop, M
Hyde, CE
Ireland, DG
Ishkhanov, BS
Isupov, EL
Jiang, X
Jo, HS
Joo, K
Katramatou, AT
Keller, D
Khandaker, M
Khetarpal, P
Khrosinkova, E
Kim, A
Kim, W
Klein, FJ
Koirala, S
Kubarovsky, A
Kubarovsky, V
Kuleshov, SV
Kvaltine, ND
Lee, B
LeRose, JJ
Lewis, S
Lindgren, R
Livingston, K
Lu, HY
MacGregor, IJD
Mao, Y
Martinez, D
Mayer, M
McCullough, E
McKinnon, B
Meekins, D
Meyer, CA
Michaels, R
Mineeva, T
Mirazita, M
Moffit, B
Mokeev, V
Montgomery, RA
Moutarde, H
Munevar, E
Camacho, CM
Nadel-Turonski, P
Nasseripour, R
Nepali, CS
Niccolai, S
Niculescu, G
Niculescu, I
Osipenko, M
Ostrovidov, AI
Pappalardo, LL
Paremuzyan, R
Park, K
Park, S
Petratos, GG
Phelps, E
Pisano, S
Pogorelko, O
Pozdniakov, S
Procureur, S
Protopopescu, D
Puckett, AJR
Qian, X
Qiang, Y
Ricco, G
Rimal, D
Ripani, M
Ritchie, BG
Rodriguez, I
Ron, G
Rosner, G
Rossi, P
Sabatie, F
Saha, A
Saini, MS
Sarty, AJ
Sawatzky, B
Saylor, NA
Schott, D
Schulte, E
Schumacher, RA
Seder, E
Seraydaryan, H
Shneor, R
Smith, GD
Sokhan, D
Sparveris, N
Stepanyan, SS
Stepanyan, S
Stoler, P
Subedi, R
Sulkosky, V
Taiuti, M
Tang, W
Taylor, CE
Tkachenko, S
Ungaro, M
Vernarsky, B
Vineyard, MF
Voskanyan, H
Voutier, E
Walford, NK
Wang, Y
Watts, DP
Weinstein, LB
Weygand, DP
Wojtsekhowski, B
Wood, MH
Yan, X
Yao, H
Zachariou, N
Zhan, X
Zhang, J
Zhao, ZW
Zheng, X
Zonta, I
AF Pomerantz, I.
Ilieva, Y.
Gilman, R.
Higinbotham, D. W.
Piasetzky, E.
Strauch, S.
Adhikari, K. P.
Aghasyan, M.
Allada, K.
Amaryan, M. J.
Pereira, S. Anefalos
Anghinolfi, M.
Baghdasaryan, H.
Ball, J.
Baltzell, N. A.
Battaglieri, M.
Batourine, V.
Beck, A.
Beck, S.
Bedlinskiy, I.
Berman, B. L.
Biselli, A. S.
Boeglin, W.
Bono, J.
Bookwalter, C.
Boiarinov, S.
Briscoe, W. J.
Brooks, W. K.
Bubis, N.
Burkert, V.
Camsonne, A.
Canan, M.
Carman, D. S.
Celentano, A.
Chandavar, S.
Charles, G.
Chirapatpimol, K.
Cisbani, E.
Cole, P. L.
Contalbrigo, M.
Crede, V.
Cusanno, F.
D'Angelo, A.
Daniel, A.
Dashyan, N.
de Jager, C. W.
De Vita, R.
De Sanctis, E.
Deur, A.
Djalali, C.
Dodge, G. E.
Doughty, D.
Dupre, R.
Dutta, C.
Egiyan, H.
El Alaoui, A.
El Fassi, L.
Eugenio, P.
Fedotov, G.
Fegan, S.
Fleming, J. A.
Fradi, A.
Garibaldi, F.
Geagla, O.
Gevorgyan, N.
Giovanetti, K. L.
Girod, F. X.
Glister, J.
Goetz, J. T.
Gohn, W.
Golovatch, E.
Gothe, R. W.
Griffioen, K. A.
Guegan, B.
Guidal, M.
Guo, L.
Hafidi, K.
Hakobyan, H.
Harrison, N.
Heddle, D.
Hicks, K.
Ho, D.
Holtrop, M.
Hyde, C. E.
Ireland, D. G.
Ishkhanov, B. S.
Isupov, E. L.
Jiang, X.
Jo, H. S.
Joo, K.
Katramatou, A. T.
Keller, D.
Khandaker, M.
Khetarpal, P.
Khrosinkova, E.
Kim, A.
Kim, W.
Klein, F. J.
Koirala, S.
Kubarovsky, A.
Kubarovsky, V.
Kuleshov, S. V.
Kvaltine, N. D.
Lee, B.
LeRose, J. J.
Lewis, S.
Lindgren, R.
Livingston, K.
Lu, H. Y.
MacGregor, I. J. D.
Mao, Y.
Martinez, D.
Mayer, M.
McCullough, E.
McKinnon, B.
Meekins, D.
Meyer, C. A.
Michaels, R.
Mineeva, T.
Mirazita, M.
Moffit, B.
Mokeev, V.
Montgomery, R. A.
Moutarde, H.
Munevar, E.
Camacho, C. Munoz
Nadel-Turonski, P.
Nasseripour, R.
Nepali, C. S.
Niccolai, S.
Niculescu, G.
Niculescu, I.
Osipenko, M.
Ostrovidov, A. I.
Pappalardo, L. L.
Paremuzyan, R.
Park, K.
Park, S.
Petratos, G. G.
Phelps, E.
Pisano, S.
Pogorelko, O.
Pozdniakov, S.
Procureur, S.
Protopopescu, D.
Puckett, A. J. R.
Qian, X.
Qiang, Y.
Ricco, G.
Rimal, D.
Ripani, M.
Ritchie, B. G.
Rodriguez, I.
Ron, G.
Rosner, G.
Rossi, P.
Sabatie, F.
Saha, A.
Saini, M. S.
Sarty, A. J.
Sawatzky, B.
Saylor, N. A.
Schott, D.
Schulte, E.
Schumacher, R. A.
Seder, E.
Seraydaryan, H.
Shneor, R.
Smith, G. D.
Sokhan, D.
Sparveris, N.
Stepanyan, S. S.
Stepanyan, S.
Stoler, P.
Subedi, R.
Sulkosky, V.
Taiuti, M.
Tang, W.
Taylor, C. E.
Tkachenko, S.
Ungaro, M.
Vernarsky, B.
Vineyard, M. F.
Voskanyan, H.
Voutier, E.
Walford, N. K.
Wang, Y.
Watts, D. P.
Weinstein, L. B.
Weygand, D. P.
Wojtsekhowski, B.
Wood, M. H.
Yan, X.
Yao, H.
Zachariou, N.
Zhan, X.
Zhang, J.
Zhao, Z. W.
Zheng, X.
Zonta, I.
CA CLAS Collaboration
Hall-A Collaboration
TI Hard Two-Body Photodisintegration of He-3
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ANGLE ELASTIC-SCATTERING; CROSS-SECTION; DEUTERON
AB We have measured cross sections for the gamma He-3 -> pd reaction at photon energies of 0.4-1.4 GeV and a center-of-mass angle of 90 degrees. We observe dimensional scaling above 0.7 GeV at this center-of-mass angle. This is the first observation of dimensional scaling in the photodisintegration of a nucleus heavier than the deuteron.
C1 [Baltzell, N. A.; El Alaoui, A.; El Fassi, L.; Hafidi, K.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Ritchie, B. G.] Arizona State Univ, Tempe, AZ 85287 USA.
[Goetz, J. T.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Wood, M. H.] Canisius Coll, Buffalo, NY 14208 USA.
[Ho, D.; Lu, H. Y.; Meyer, C. A.; Schumacher, R. A.; Vernarsky, B.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Klein, F. J.; Walford, N. K.] Catholic Univ Amer, Washington, DC 20064 USA.
[Ball, J.; Charles, G.; Dupre, R.; Moutarde, H.; Procureur, S.; Sabatie, F.] CEA, Ctr Saclay, Irfu, Serv Phys Nucl, F-91191 Gif Sur Yvette, France.
[Doughty, D.; Heddle, D.] Christopher Newport Univ, Newport News, VA 23606 USA.
[Gohn, W.; Harrison, N.; Joo, K.; Mineeva, T.; Seder, E.] Univ Connecticut, Storrs, CT 06269 USA.
[Glister, J.] Dalhousie Univ, Halifax, NS B3H 3J5, Canada.
[Qian, X.] Duke Univ, Durham, NC 27708 USA.
[Fleming, J. A.; Watts, D. P.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA.
[Boeglin, W.; Bono, J.; Guo, L.; Khetarpal, P.; Nasseripour, R.; Rimal, D.; Rodriguez, I.] Florida Int Univ, Miami, FL 33199 USA.
[Bookwalter, C.; Crede, V.; Eugenio, P.; Ostrovidov, A. I.; Park, S.; Saini, M. S.] Florida State Univ, Tallahassee, FL 32306 USA.
[Ricco, G.; Taiuti, M.] Univ Genoa, I-16146 Genoa, Italy.
[Berman, B. L.; Briscoe, W. J.; Niculescu, I.; Schott, D.] George Washington Univ, Washington, DC 20052 USA.
[Ron, G.] Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel.
[Cole, P. L.; Martinez, D.; Taylor, C. E.] Idaho State Univ, Pocatello, ID 83209 USA.
[Wang, Y.] Univ Illinois, Urbana, IL 61801 USA.
[Contalbrigo, M.; Pappalardo, L. L.] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy.
[Aghasyan, M.; Pereira, S. Anefalos; De Sanctis, E.; Mirazita, M.; Pisano, S.; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Anghinolfi, M.; Battaglieri, M.; Celentano, A.; De Vita, R.; Golovatch, E.; Osipenko, M.; Ripani, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[D'Angelo, A.; Zonta, I.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Cisbani, E.; Cusanno, F.; Garibaldi, F.] Ist Nazl Fis Nucl, Grp Collegato Sanita, I-00161 Rome, Italy.
[Cisbani, E.; Cusanno, F.; Garibaldi, F.] Ist Super Sanita, Dept TESA, I-00161 Rome, Italy.
[Fradi, A.; Guegan, B.; Guidal, M.; Jo, H. S.; Camacho, C. Munoz; Niccolai, S.; Sokhan, D.] Inst Phys Nucl ORSAY, F-91406 Orsay, France.
[Bedlinskiy, I.; Boiarinov, S.; Kuleshov, S. V.; Pogorelko, O.; Pozdniakov, S.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Giovanetti, K. L.; Nasseripour, R.; Niculescu, G.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA.
[Katramatou, A. T.; Khrosinkova, E.; Lee, B.; Petratos, G. G.; Subedi, R.; Yan, X.] Kent State Univ, Kent, OH 44242 USA.
[Allada, K.; Dutta, C.] Univ Kentucky, Lexington, KY 40506 USA.
[Kim, A.; Kim, W.; Park, K.; Stepanyan, S. S.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Voutier, E.] Univ Grenoble 1, CNRS, IN2P3, LPSC,INPG, Grenoble, France.
[Qiang, Y.; Sparveris, N.; Zhan, X.] MIT, Cambridge, MA 02139 USA.
[Holtrop, M.] Univ New Hampshire, Durham, NH 03824 USA.
[Beck, A.; Beck, S.] Nucl Res Ctr Negev, IL-84190 Beer Sheva, Israel.
[Khandaker, M.] Norfolk State Univ, Norfolk, VA 23504 USA.
[Chandavar, S.; Daniel, A.; Hicks, K.; Niculescu, G.; Tang, W.] Ohio Univ, Athens, OH 45701 USA.
[Adhikari, K. P.; Amaryan, M. J.; Canan, M.; Dodge, G. E.; Hyde, C. E.; Koirala, S.; Mayer, M.; Nepali, C. S.; Seraydaryan, H.; Weinstein, L. B.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Biselli, A. S.; Kubarovsky, A.; Saylor, N. A.; Stoler, P.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
[D'Angelo, A.] Univ Roma Tor Vergata, I-00133 Rome, Italy.
[Gilman, R.; Jiang, X.; Schulte, E.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Glister, J.; McCullough, E.; Sarty, A. J.] St Marys Univ, Halifax, NS B3H 3C3, Canada.
[Golovatch, E.; Ishkhanov, B. S.; Isupov, E. L.; Kubarovsky, A.; Mokeev, V.] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia.
[Ilieva, Y.; Strauch, S.; Djalali, C.; Fedotov, G.; Gothe, R. W.; Mao, Y.; Phelps, E.; Zachariou, N.] Univ S Carolina, Columbia, SC 29208 USA.
[Pomerantz, I.; Piasetzky, E.; Bubis, N.; Shneor, R.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel.
[Pomerantz, I.] Univ Texas Austin, Austin, TX 78712 USA.
[Sawatzky, B.; Sparveris, N.; Yao, H.] Temple Univ, Philadelphia, PA 19122 USA.
[Gilman, R.; Higinbotham, D. W.; Batourine, V.; Boiarinov, S.; Brooks, W. K.; Burkert, V.; Camsonne, A.; Carman, D. S.; Cole, P. L.; de Jager, C. W.; Deur, A.; Doughty, D.; Egiyan, H.; Girod, F. X.; Heddle, D.; Kubarovsky, V.; LeRose, J. J.; Meekins, D.; Michaels, R.; Mokeev, V.; Munevar, E.; Nadel-Turonski, P.; Park, K.; Puckett, A. J. R.; Saha, A.; Stepanyan, S.; Sulkosky, V.; Ungaro, M.; Weygand, D. P.; Wojtsekhowski, B.; Zhang, J.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Vineyard, M. F.] Union Coll, Schenectady, NY 12308 USA.
[Brooks, W. K.; Hakobyan, H.; Kuleshov, S. V.] Univ Tecn Federico Santa Maria, Valparaiso, Chile.
[Fegan, S.; Ireland, D. G.; Lewis, S.; Livingston, K.; MacGregor, I. J. D.; McKinnon, B.; Montgomery, R. A.; Protopopescu, D.; Rosner, G.; Smith, G. D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland.
[Baghdasaryan, H.; Chirapatpimol, K.; Geagla, O.; Joo, K.; Keller, D.; Kvaltine, N. D.; Lindgren, R.; Sawatzky, B.; Tkachenko, S.; Zhao, Z. W.; Zheng, X.] Univ Virginia, Charlottesville, VA 22901 USA.
[Egiyan, H.; Griffioen, K. A.; Moffit, B.] Coll William & Mary, Williamsburg, VA 23187 USA.
[Dashyan, N.; Gevorgyan, N.; Hakobyan, H.; Paremuzyan, R.; Voskanyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
RP Pomerantz, I (reprint author), Univ Texas Austin, Austin, TX 78712 USA.
RI Sabatie, Franck/K-9066-2015; Osipenko, Mikhail/N-8292-2015; Zhang,
Jixie/A-1461-2016; Cisbani, Evaristo/C-9249-2011; Celentano,
Andrea/J-6190-2012; Kuleshov, Sergey/D-9940-2013; Higinbotham,
Douglas/J-9394-2014; Schumacher, Reinhard/K-6455-2013; Brooks,
William/C-8636-2013; D'Angelo, Annalisa/A-2439-2012; Meyer,
Curtis/L-3488-2014; Lu, Haiyun/B-4083-2012; Ireland, David/E-8618-2010;
Charles, Gabriel/B-7573-2015; El Alaoui, Ahmed/B-4638-2015; Ishkhanov,
Boris/E-1431-2012; Sarty, Adam/G-2948-2014; MacGregor, Ian/D-4072-2011
OI Sabatie, Franck/0000-0001-7031-3975; Osipenko,
Mikhail/0000-0001-9618-3013; Cisbani, Evaristo/0000-0002-6774-8473;
Celentano, Andrea/0000-0002-7104-2983; Zonta, Irene/0000-0003-4952-2160;
Hyde, Charles/0000-0001-7282-8120; Qian, Xin/0000-0002-7903-7935; Bono,
Jason/0000-0002-3018-714X; Kuleshov, Sergey/0000-0002-3065-326X;
Higinbotham, Douglas/0000-0003-2758-6526; Schumacher,
Reinhard/0000-0002-3860-1827; Brooks, William/0000-0001-6161-3570;
D'Angelo, Annalisa/0000-0003-3050-4907; Meyer,
Curtis/0000-0001-7599-3973; Ireland, David/0000-0001-7713-7011;
FU JLab physics and accelerator divisions; U.S. National Science Foundation
[PHY-0856010]; U.S. Department of Energy; Israel Science Foundation;
U.S.-Israeli Bi-National Scientific Foundation; Chilean Comision
Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Istituto
Nazionale di Fisica Nucleare; French Centre National de la Recherche
Scientifique; French Commissariat a l'Energie Atomique; UK Science and
Technology Facilities Council (STFC); Scottish Universities Physics
Alliance (SUPA); National Research Foundation of Korea; DOE Contract
[DE-AC05-06OR23177]
FX We thank S. J. Brodsky, L. L. Frankfurt, M. M. Sargsian, and M. Strikman
for helpful discussions. We thank the JLab physics and accelerator
divisions for their support. This work was supported in part by the U.S.
National Science Foundation under Grant No. PHY-0856010, the U.S.
Department of Energy, the Israel Science Foundation, the U.S.-Israeli
Bi-National Scientific Foundation, the Chilean Comision Nacional de
Investigacion Cientifica y Tecnologica (CONICYT), the Istituto Nazionale
di Fisica Nucleare, the French Centre National de la Recherche
Scientifique, the French Commissariat a l'Energie Atomique, the UK
Science and Technology Facilities Council (STFC), the Scottish
Universities Physics Alliance (SUPA), and the National Research
Foundation of Korea. Jefferson Science Associates operates the Thomas
Jefferson National Accelerator Facility under DOE Contract No.
DE-AC05-06OR23177.
NR 40
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U1 0
U2 35
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 14
PY 2013
VL 110
IS 24
AR 242301
DI 10.1103/PhysRevLett.110.242301
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 164FP
UT WOS:000320394700007
PM 25165915
ER
PT J
AU Grady, NK
Heyes, JE
Chowdhury, DR
Zeng, Y
Reiten, MT
Azad, AK
Taylor, AJ
Dalvit, DAR
Chen, HT
AF Grady, Nathaniel K.
Heyes, Jane E.
Chowdhury, Dibakar Roy
Zeng, Yong
Reiten, Matthew T.
Azad, Abul K.
Taylor, Antoinette J.
Dalvit, Diego A. R.
Chen, Hou-Tong
TI Terahertz Metamaterials for Linear Polarization Conversion and Anomalous
Refraction
SO SCIENCE
LA English
DT Article
ID ANGULAR-MOMENTUM; FREQUENCIES
AB Polarization is one of the basic properties of electromagnetic waves conveying valuable information in signal transmission and sensitive measurements. Conventional methods for advanced polarization control impose demanding requirements on material properties and attain only limited performance. We demonstrated ultrathin, broadband, and highly efficient metamaterial-based terahertz polarization converters that are capable of rotating a linear polarization state into its orthogonal one. On the basis of these results, we created metamaterial structures capable of realizing near-perfect anomalous refraction. Our work opens new opportunities for creating high-performance photonic devices and enables emergent metamaterial functionalities for applications in the technologically difficult terahertz-frequency regime.
C1 [Grady, Nathaniel K.; Heyes, Jane E.; Chowdhury, Dibakar Roy; Reiten, Matthew T.; Azad, Abul K.; Taylor, Antoinette J.; Chen, Hou-Tong] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Zeng, Yong; Dalvit, Diego A. R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Chen, HT (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, MS K771, Los Alamos, NM 87545 USA.
EM chenht@lanl.gov
RI Chen, Hou-Tong/C-6860-2009; zeng, yong/C-7281-2008; Grady,
Nathaniel/A-4896-2011
OI Chen, Hou-Tong/0000-0003-2014-7571; Azad, Abul/0000-0002-7784-7432;
Grady, Nathaniel/0000-0002-0885-3337
FU Los Alamos National Laboratory Laboratory-Directed Research and
Development program; U.S. Department of Energy [DE-AC52-06NA25396]
FX We acknowledge partial support from the Los Alamos National Laboratory
Laboratory-Directed Research and Development program. This work was
performed in part at the Center for Integrated Nanotechnologies, a U.S.
Department of Energy, Office of Basic Energy Sciences user facility. Los
Alamos National Laboratory, an affirmative action equal opportunity
employer, is operated by Los Alamos National Security for the National
Nuclear Security Administration of the U.S. Department of Energy under
contract DE-AC52-06NA25396.
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U1 45
U2 328
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
EI 1095-9203
J9 SCIENCE
JI Science
PD JUN 14
PY 2013
VL 340
IS 6138
BP 1304
EP 1307
DI 10.1126/science.1235399
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 163FC
UT WOS:000320320200037
PM 23686344
ER
PT J
AU Koo, J
Hwang, HJ
Huang, B
Lee, H
Lee, H
Park, M
Kwon, Y
Wei, SH
Lee, H
AF Koo, Jahyun
Hwang, Ho Jun
Huang, Bing
Lee, Hunpyo
Lee, Hosik
Park, Minwoo
Kwon, Yongkyung
Wei, Su-Huai
Lee, Hoonkyung
TI Exotic Geometrical and Electronic Properties in Hydrogenated Graphyne
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID DECORATED GRAPHYNE; STORAGE CAPACITY; CARBON; GRAPHENE; SPILLOVER;
GRAPHANE; LITHIUM; FAMILY; FORMS; FILMS
AB On the basis of first-principles calculations, we present exotic geometrical and electronic properties in hydrogenated graphyne, a 2D material of sp-sp(2) hybrid carbon networks. Hydrogen atoms adsorbed onto sp-bonded carbon atoms can form both sp(2)- and sp(3)-hybridized bonds and can exist in three different geometries: in-plane, out-of-plane, and oblique-plane; this is in sharp contrast to hydrogenated graphene, which has only one hydrogenation geometry. The band gaps of hydrogenated graphyne can vary by similar to 3 eV as the geometry changes. We also find that change in the hydrogen concentration allows a large band-gap tuning of similar to 5 eV. Unlike hydrogenated graphene, in which H atoms show a tendency to cluster, H atoms tend to be dispersed in graphyne, making band-gap tuning feasible. These exotic properties in hydrogenated graphyne indicate that the band gap of hydrogenated graphyne can be tailored for new device applications. Furthermore, the composite of fully hydrogenated graphyne is C1H1.75, which has a hydrogen-to-carbon ratio greater than that of graphane (C1H1). This large hydrogen capacity (similar to 13 wt % H) suggests that graphyne also can be used as a high-capacity hydrogen storage material.
C1 [Koo, Jahyun; Hwang, Ho Jun; Lee, Hunpyo; Park, Minwoo; Kwon, Yongkyung; Lee, Hoonkyung] Konkuk Univ, Sch Phys, Div Quantum Phases & Devices, Seoul 143701, South Korea.
[Huang, Bing; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Lee, Hosik] Ulsan Natl Inst Sci & Technol, Sch Mech & Adv Mat Engn, Ulsan 689798, South Korea.
RP Lee, H (reprint author), Neungdong Ro, Seoul 143701, South Korea.
EM hkiee3@konkuk.ac.kr
RI Huang, Bing/D-8941-2011; Lee, Hosik/C-2658-2009
OI Huang, Bing/0000-0001-6735-4637; Lee, Hosik/0000-0003-4667-6551
FU Basic Science Research Program through the National Research Foundation
of Korea [KRF-2012R1A1A1013124]; Ministry of Education, Science and
Technology; KISTI under the Super-computing Applications Support Program
[KSC-2012-C2-52]; U.S. Department of Energy (DOE) [DE-AC36-08GO28308]
FX This work was supported by the Basic Science Research Program (Grant No.
KRF-2012R1A1A1013124) through the National Research Foundation of Korea,
funded by the Ministry of Education, Science and Technology. The authors
also acknowledge support from KISTI under the Super-computing
Applications Support Program (KSC-2012-C2-52). The work at NREL was
funded by the U.S. Department of Energy (DOE) under Contract No.
DE-AC36-08GO28308.
NR 39
TC 24
Z9 24
U1 2
U2 56
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 13
PY 2013
VL 117
IS 23
BP 11960
EP 11967
DI 10.1021/jp402286f
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 167OE
UT WOS:000320640500008
ER
PT J
AU Chan, CK
Beechem, TE
Ohta, T
Brumbach, MT
Wheeler, DR
Stevenson, KJ
AF Chan, Calvin K.
Beechem, Thomas E.
Ohta, Taisuke
Brumbach, Michael T.
Wheeler, David R.
Stevenson, Keith J.
TI Electrochemically Driven Covalent Functionalization of Graphene from
Fluorinated Aryl Iodonium Salts
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID HYDROGENATED AMORPHOUS-CARBON; LIGHT-EMITTING-DIODES; TRANSPARENT
ELECTRODES; SYNCHROTRON-RADIATION; CORE-LEVEL; PHOTOEMISSION; FILMS;
SPECTROSCOPY; SURFACE; GRAPHITE
AB Chemical functionalization is required to adapt graphene's properties to many applications. However, most covalent functionalization schemes are spontaneous or defect driven and are not suitable for applications requiring directed assembly of molecules on graphene substrates. In this study, we demonstrate the electrochemically driven covalent bonding of trifluoromethylphenylene (CF3Ph) onto epitaxial graphene. Submonolayer and full monolayer chemisorption was demonstrated by varying the duration of the electrochemical driving potential. A 10x increase in the CF3Ph density was obtained by varying the duration of the graphene electrochemical potential by 4x. A maximum closed-pack density of 1 X 10(14) molecules.cm(-2) was observed. Chemical, electronic, and defect states of CF3Ph graphene were studied by photoemission spectroscopy, spatially resolved Raman spectroscopy, and water contact angle measurement. Covalent attachment rehybridized some of the delocalized graphene sp(2) orbitals to localized sp(3) states. Increased water contact angles and work functions were observed for increasing CF3Ph functionalization densities, which is consistent with increasing concentration and orientation of fluorine on the graphene surfaces. Control over the relative spontaneity (reaction rate) of covalent graphene functionalization is an important first step to the practical realization of directed molecular assembly on graphene.
C1 [Chan, Calvin K.; Beechem, Thomas E.; Ohta, Taisuke; Brumbach, Michael T.; Wheeler, David R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Stevenson, Keith J.] Univ Texas Austin, Dept Biochem & Chem, Austin, TX 78712 USA.
RP Chan, CK (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM cchan@sandia.gov
FU Early Career Laboratory Directed Research and Development program at
Sandia National Laboratories; Energy Frontiers Research Center; U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
on "Understanding Charge Separation and Transfer at Interfaces in Energy
Materials" (EFRC:CST) [DE-SC0001091]; U.S. Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX The authors thank Guild Copeland, Anthony McDonald, and Lyle Brunke for
experimental assistance. This work was supported by the Early Career
Laboratory Directed Research and Development program at Sandia National
Laboratories, and an Energy Frontiers Research Center funded by the U.S.
Department of Energy, Office of Science, Office of Basic Energy Sciences
on "Understanding Charge Separation and Transfer at Interfaces in Energy
Materials" (EFRC:CST, Award Number DE-SC0001091). Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the U.S. Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000.
NR 61
TC 15
Z9 15
U1 5
U2 56
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 13
PY 2013
VL 117
IS 23
BP 12038
EP 12044
DI 10.1021/jp311519j
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 167OE
UT WOS:000320640500017
ER
PT J
AU Martin, RL
Lin, LC
Jariwala, K
Smit, B
Haranczyk, M
AF Martin, Richard L.
Lin, Li-Chiang
Jariwala, Kuldeep
Smit, Berend
Haranczyk, Maciej
TI Mail-Order Metal-Organic Frameworks (MOFs): Designing Isoreticular MOF-5
Analogues Comprising Commercially Available Organic Molecules
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID CRYSTALLINE POROUS MATERIALS; HIGH-SURFACE-AREA; FORCE-FIELD; DIOXIDE;
STORAGE; NETS
AB Metal-organic frameworks (MOFs), a class of porous materials, are of particular interest in gas storage and separation applications due largely to their high internal surface areas and tunable structures. MOF-5 is perhaps the archetypal MOF; in particular, many isoreticular analogues of MOF-5 have been synthesized, comprising alternative dicarboxylic acid ligands. In this contribution we introduce a new set of hypothesized MOF-5 analogues, constructed from commercially available organic molecules. We describe our automated procedure for hypothetical MOF design, comprising selection of appropriate ligands, construction of 3D structure models, and structure relaxation methods. 116 MOF-5 analogues were designed and characterized in terms of geometric properties and simulated methane uptake at conditions relevant to vehicular storage applications. A strength of the presented approach is that all of the hypothesized MOFs are designed to be synthesizable utilizing ligands purchasable online.
C1 [Martin, Richard L.; Haranczyk, Maciej] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Lin, Li-Chiang; Smit, Berend] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Jariwala, Kuldeep; Smit, Berend] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Smit, Berend] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Haranczyk, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Computat Res Div, 1 Cyclotron Rd,Mail Stop 50F-1650, Berkeley, CA 94720 USA.
EM mharanczyk@lbl.gov
RI Smit, Berend/B-7580-2009; EFRC, CGS/I-6680-2012; Haranczyk,
Maciej/A-6380-2014; Martin, Richard/C-7129-2013; Lin,
Li-Chiang/J-8120-2014; Stangl, Kristin/D-1502-2015;
OI Smit, Berend/0000-0003-4653-8562; Haranczyk, Maciej/0000-0001-7146-9568;
Martin, Richard/0000-0001-9858-2608; Lin, Li-Chiang/0000-0002-2821-9501
FU U.S. Department of Energy [DE-AC02-05CH11231]; Center for Gas
Separations Relevant to Clean Energy Technologies, an Energy Frontier
Research Center; U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences [DE-SC0001015]; U.S. Department of Energy, Office
of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and
Biosciences [DE-FG02-12ER16362]; Office of Science of the U.S.
Department of Energy [DEAC02-05CH11231]
FX The authors would like to thank Dr. James Stewart for providing the
MOPAC license. This work was performed at Lawrence Berkeley National
Laboratory supported by the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. This research was supported by (a) the Center for Gas
Separations Relevant to Clean Energy Technologies, an Energy Frontier
Research Center funded by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences under Award Number DE-SC0001015
(to R.L.M, M.H.) and (b) the U.S. Department of Energy, Office of Basic
Energy Sciences, Division of Chemical Sciences, Geosciences and
Biosciences under Award DE-FG02-12ER16362 (to L.-C.L., B.S.). This
research used resources of the National Energy Research Scientific
Computing Center, which is supported by the Office of Science of the
U.S. Department of Energy under Contract No. DEAC02-05CH11231.
NR 31
TC 28
Z9 28
U1 2
U2 38
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 13
PY 2013
VL 117
IS 23
BP 12159
EP 12167
DI 10.1021/jp401920y
PG 9
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 167OE
UT WOS:000320640500031
ER
PT J
AU Vucinic-Vasic, M
Bozin, ES
Bessais, L
Stojanovic, G
Kozmidis-Luburic, U
Abeykoon, M
Jancar, B
Meden, A
Kremenovic, A
Antic, B
AF Vucinic-Vasic, M.
Bozin, E. S.
Bessais, L.
Stojanovic, G.
Kozmidis-Luburic, U.
Abeykoon, M.
Jancar, B.
Meden, A.
Kremenovic, A.
Antic, B.
TI Thermal Evolution of Cation Distribution/Crystallite Size and Their
Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite
Nanoparticles
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID MICROSTRUCTURE; BEHAVIOR
AB Evolution of the structural and magnetic properties of ZnFe1.95Yb0.05O4 nanoparticles, prepared via a high-energy ball milling route and exposed to further thermal annealing/heating, was assessed in detail and correlation of these properties explored. inversion, heating of the sample to similar to 500 degrees C is found to rapidly alter the cation distribution from mixed to normal, in agreement with the known cation preferences. Under the same conditions the crystallite size only slowly grows. By further thermal treatment appreciably. An interrelationship among the lattice parameter, octahedral site occupancy, and crystallite size has been established. The observations are (a) both the site occupancy of Fe3+ at octahedral 16d spinel sites (N-16d(Fe3+)) and the cubic lattice parameter rapidly increase with an initial increase of the crystallite size, (b) the lattice parameter increases with increasing occupancy, N-16d(Fe3+), and (c) there appears to be a critical nanoparticle diameter (approximately 15 nm) above which both the site occupancy and lattice parameter values are saturated. The magnetic behavior of the annealed samples appears to be correlated to the evolution of both the cation distribution and crystallite size, as follows. As-prepared samples and those annealed at lower temperatures show superparamagnetic behavior at room temperature, presumably as a consequence of the Fe3+ distribution and strong Fe3+(8a)-O-Fe3+(16d) superexchange interactions. Samples with a nanopartide diameter greater than 12 nm and with almost normal distributions exhibit the paramagnetic state. The coercive field is found to decrease with an increase of the crystallite size. Partial Yb3+/Fe3+ substitution is found to increase the inversion parameter and saturation magnetization. Detailed knowledge of the thermal evolution of structural/microstructural parameters allows control over the cation distribution and crystallite size and hence the magnetic properties of nanoferrites.
C1 [Vucinic-Vasic, M.; Stojanovic, G.; Kozmidis-Luburic, U.] Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia.
[Bozin, E. S.; Abeykoon, M.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Bessais, L.] CNRS, UMR 7075, ICPME, F-94230 Thiais, France.
[Bessais, L.] Univ Paris 06, F-94230 Thiais, France.
[Jancar, B.] Jozef Stefan Inst, Ljubljana 1000, Slovenia.
[Meden, A.] Univ Ljubljana, Fac Chem & Chem Technol, Ljubljana 1000, Slovenia.
[Kremenovic, A.; Antic, B.] Univ Belgrade, Inst Nucl Sci Vinca, Belgrade 11001, Serbia.
[Kremenovic, A.] Univ Belgrade, Fac Min & Geol, Crystallog Lab, Belgrade 11001, Serbia.
RP Antic, B (reprint author), Univ Belgrade, Inst Nucl Sci Vinca, POB 522, Belgrade 11001, Serbia.
EM bantic@vinca.rs
RI Bessais, Lotfi/I-5423-2013
OI Bessais, Lotfi/0000-0001-7236-1604
FU Serbian Ministry of Education and Science [III45015]; U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-98CH10886]; U.S. Department of Energy, Office of Science
[DE-AC02-06CH11357]
FX The Serbian Ministry of Education and Science has financially supported
this work under Contract No. III45015. Work at Brookhaven National
Laboratory was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886. This work benefited from usage of the 11-IDC beamline
of the APS at ANL. Use of the APS is supported by the U.S. Department of
Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
NR 22
TC 6
Z9 6
U1 1
U2 16
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 13
PY 2013
VL 117
IS 23
BP 12358
EP 12365
DI 10.1021/jp403459t
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 167OE
UT WOS:000320640500054
ER
PT J
AU Lynch, PT
Annesley, CJ
Aul, CJ
Yang, XL
Trantert, RS
AF Lynch, Patrick T.
Annesley, Christopher J.
Aul, Christopher J.
Yang, Xueliang
Trantert, Robert S.
TI Recombination of Allyl Radicals in the High Temperature Fall-Off Regime
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID SELF-REACTION; SHOCK-TUBE; EQUILIBRIUM-CONSTANT; PYROLYSIS; KINETICS;
DECOMPOSITION; DISSOCIATION; ISOMERIZATION; COMBINATION; RELAXATION
AB The recombination of allyl radicals (C3H5), generated from the dissociation of 1,5-hexadiene or allyl iodide dilute in krypton, has been investigated in a diaphragmless shock tube using laser schlieren densitometry, LS, (900-1700 K, 10 +/- 1, 29 +/- 3, 57 +/- 3, and 120 +/- 4 Torr). The LS density gradient profiles were simulated and excellent agreement was found between simulations and experimental profiles. Rate coefficients for C3H5I -> C3H5 + I and C3H5 + C3H5 -> C6H10 were obtained and showed strong fall-off. Second order rate coefficients for allyl radical recombination were determined as k(1a,124Torr) = (2.6 +/- 0.8) x 10(55) T-12.995 exp(-8426/T), k(1a,57Torr) = (1.7 +/- 0.5) x 10(60) T-14.49 exp(-9344/T), and k(1a,30Torr) = (7.5 + 2.3) x 10(66) T-15.935 exp(-10192/T) cm(3) mol(-1)s(-1). The contribution of a disproportionation channel in allyl radical reactions was assessed, and the best agreement was obtained with no more than 5% disproportionation. Notably, because both the forward and back reactions of C(6)H(1)0 reversible arrow C3H5 + C3H5 were measured, utilizing two different precursors, the equilibrium constant of this reaction could be found, suggesting an entropy of formation of 1,5-hexadiene, 87.3 cal mol(-1) K-1, which is significantly smaller than that group additivity predicts, but larger than other reference literature values.
C1 [Lynch, Patrick T.; Annesley, Christopher J.; Yang, Xueliang; Trantert, Robert S.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Aul, Christopher J.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77840 USA.
RP Trantert, RS (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM tranter@anl.gov
FU Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences, U.S. Department of Energy
[DE-AC02-06CH11357]
FX This work was performed under the auspices of the Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences, and Biosciences,
U.S. Department of Energy, under contract number DE-AC02-06CH11357. We
would like to thank John Kiefer for helpful discussions and Branko
Ruscic for reviewing and revising the thermochemistry of 1,5-hexadiene.
NR 56
TC 9
Z9 9
U1 2
U2 25
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JUN 13
PY 2013
VL 117
IS 23
BP 4750
EP 4761
DI 10.1021/jp402484v
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 167OH
UT WOS:000320640800002
PM 23679185
ER
PT J
AU Fridlyand, A
Lynch, PT
Tranter, RS
Brezinsky, K
AF Fridlyand, Aleksandr
Lynch, Patrick T.
Tranter, Robert S.
Brezinsky, Kenneth
TI Single Pulse Shock Tube Study of Allyl Radical Recombination
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID HIGH-TEMPERATURE REACTIONS; SELF-REACTION; PROPARGYL RADICALS; PROPENE
PYROLYSIS; ALIPHATIC FUELS; KINETICS; FLAMES; DECOMPOSITION;
DISSOCIATION; HYDROCARBONS
AB The recombination and disproportionation of allyl radicals has been studied in a single pulse shock tube with gas chromatographic measurements at 1-10 bar, 650-1300 K, and 1.4-2 ms reaction times. 1,5-Hexadiene and allyl iodide were used as precursors. Simulation of the results using derived rate expressions from a complementary diaphragmless shock tube/laser schlieren densitometry study provided excellent agreement with precursor consumption and formation of all major stable intermediates. No significant pressure dependence was observed at the present conditions. It was found that under the conditions of these experiments, reactions of allyl radicals in the cooling wave had to be accounted for to accurately simulate the experimental results, and this unusual situation is discussed. In the allyl iodide experiments, higher amounts of allene, propene, and benzene were found at lower temperatures than expected. Possible mechanisms are discussed and suggest that iodine containing species are responsible for the low temperature formation of allene, propene, and benzene.
C1 [Fridlyand, Aleksandr; Brezinsky, Kenneth] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA.
[Lynch, Patrick T.; Tranter, Robert S.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Brezinsky, K (reprint author), Univ Illinois, Dept Mech & Ind Engn, 842 West Taylor St, Chicago, IL 60607 USA.
EM kenbrez@uic.edu
FU Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences, U.S. Department of Energy
[DE-AC02-06CH11357]
FX Aspects of this work were performed under the auspices of the Office of
Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and
Biosciences, U.S. Department of Energy, under contract number
DE-AC02-06CH11357.
NR 40
TC 11
Z9 11
U1 1
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JUN 13
PY 2013
VL 117
IS 23
BP 4762
EP 4776
DI 10.1021/jp402391n
PG 15
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 167OH
UT WOS:000320640800003
PM 23679206
ER
PT J
AU Johnson, DF
Bhaskaran-Nair, K
Bylaska, EJ
de Jong, WA
AF Johnson, Donald F.
Bhaskaran-Nair, Kiran
Bylaska, Eric J.
de Jong, Wibe A.
TI Thermodynamics of Tetravalent Thorium and Uranium Complexes from
First-Principles Calculations
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID CORRELATED MOLECULAR CALCULATIONS; DENSITY-FUNCTIONAL THEORY;
GAUSSIAN-BASIS SETS; AB-INITIO; AQUEOUS-SOLUTION; FREE-ENERGIES; AQUA
IONS; HYDROLYSIS; TETRAHALIDES; ATOMS
AB Enthalpies of formation for the ThX4 and UX4 (X = F, Cl, OH) species have been investigated with density functional theory and coupled-cluster methods. ThX4 molecules are all confirmed as tetrahedral, while all UX4 molecules are predicted to adopt D-2d symmetry using density functional theory. Multireference coupled cluster approaches confirm the D-2d symmetry for UF4. The bonding is mostly ionic, and predicted formation energies for the halogen species show good agreement with experiment. Our calculated hydration energy of UF4 (-54.0 kcal/mol) is in very good agreement with the experimental data (-54.8 kcal/mol). We predict CCSD(T) formation energies of Delta(f)G[U(OH)(4)(g)] = -286.3 kcal/mol and Delta(f)G[U(OH)(4)(aq)] = -318.7 kcal/mol. Delta(f)G[U(OH)(4)(aq)] is 21 kcal/mol less stable than the established experimental thermodynamic data.
C1 [Johnson, Donald F.; Bhaskaran-Nair, Kiran; Bylaska, Eric J.; de Jong, Wibe A.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP de Jong, WA (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA.
RI DE JONG, WIBE/A-5443-2008
OI DE JONG, WIBE/0000-0002-7114-8315
FU BES Heavy Element Chemistry program in the Division of Chemical
Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences,
U.S. Department of Energy; Extreme Scale Computing Initiative, a
Laboratory Directed Research and Development Program at Pacific
Northwest National Laboratory; U.S. Department of Energy's Office of
Biological and Environmental Research; Office of Science of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX This research was funded by the BES Heavy Element Chemistry program in
the Division of Chemical Sciences, Geosciences, and Biosciences, Office
of Basic Energy Sciences, U.S. Department of Energy. Multireference
coupled cluster development (KBN) was supported by the Extreme Scale
Computing Initiative, a Laboratory Directed Research and Development
Program at Pacific Northwest National Laboratory. Part of the
calculations were performed using the Molecular Science Computing
Capability in the William R. Wiley Environmental Molecular Science
Laboratory, a national scientific user facility sponsored by the U.S.
Department of Energy's Office of Biological and Environmental Research
and located at the Pacific Northwest National Laboratory, operated for
the Department of Energy by Battelle. This research also used resources
of the National Energy Research Scientific Computing Center, which is
supported by the Office of Science of the U.S. Department of Energy
under Contract No. DE-AC02-05CH11231.
NR 50
TC 2
Z9 2
U1 2
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD JUN 13
PY 2013
VL 117
IS 23
BP 4988
EP 4995
DI 10.1021/jp404656y
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 167OH
UT WOS:000320640800024
PM 23675905
ER
PT J
AU Shkrob, IA
Marin, TW
Wishart, JF
AF Shkrob, Ilya A.
Marin, Timothy W.
Wishart, James F.
TI Ionic Liquids Based on Polynitrile Anions: Hydrophobicity, Low Proton
Affinity, and High Radiolytic Resistance Combined
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID INDUCED REDOX REACTIONS; PYRROLIDINIUM SALTS; CONSTITUENT IONS;
IMIDAZOLIUM; RADIATION; TRICYANOMETHANIDE; SOLVENTS; FRAGMENTATION;
EXTRACTION; STABILITY
AB Ionic liquids (IL) are being considered as replacements for molecular diluents in spent nuclear fuel reprocessing. This development is hampered by the dearth of constituent anions that combine high hydrophobicity, low metal cation and proton affinity, and radiation resistance. We demonstrate that polynitrile anions have the potential to meet these challenges. Unlike the great majority of organic anions, such polynitrile anions are resistant to oxidative fragmentation during radiolysis, yielding stable N- and C-centered radicals. Moreover, their radical dianions (generated by reduction of the anions) generally undergo protonation in preference to elimination of the cyanide. This is in contrast to fluorinated anions (another large class of anions with low proton affinity), for which radiation-induced release of fluoride is a common occurrence. The "weak spot" of the polynitrile anions appears to be their excited-state dissociation, but at least one of these anions, 1,1,2,3,3-pentacyanopropenide, is shown to resist fragmentation in room temperature radiolysis. We suggest beginning the exploration of ionic liquids based on such polynitrile anions.
C1 [Shkrob, Ilya A.; Marin, Timothy W.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Marin, Timothy W.] Benedictine Univ, Dept Chem, Lisle, IL 60532 USA.
[Wishart, James F.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Shkrob, IA (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM shkrob@anl.gov
RI Wishart, James/L-6303-2013
OI Wishart, James/0000-0002-0488-7636
FU US-DOE Office of Science, Division of Chemical Sciences, Geosciences and
Biosciences [DE-ACO2-06CH11357, DE-AC02-98CH10886]
FX I.A.S. thanks K. Quigley and J. Muntean for technical support, J.
Schlueter and M. Johnson for helpful discussions, and Professor Joel S.
Miller (University of Utah) for his helpful insights and a generous gift
of polynitrile compounds. The work at Argonne and Brookhaven was
supported by the US-DOE Office of Science, Division of Chemical
Sciences, Geosciences and Biosciences, under contracts Nos.
DE-ACO2-06CH11357 and DE-AC02-98CH10886, respectively. Programmatic
support via a DOE SISGR grant "An Integrated Basic Research Program for
Advanced Nuclear Energy Separations Systems Based on Ionic Liquids" is
gratefully acknowledged.
NR 50
TC 13
Z9 13
U1 2
U2 25
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD JUN 13
PY 2013
VL 117
IS 23
BP 7084
EP 7094
DI 10.1021/jp404313g
PG 11
WC Chemistry, Physical
SC Chemistry
GA 167OF
UT WOS:000320640600023
PM 23697390
ER
PT J
AU Roy, D
AF Roy, Dibyendu
TI Two-photon scattering of a tightly focused weak light beam from a small
atomic ensemble: An optical probe to detect atomic level structures
SO PHYSICAL REVIEW A
LA English
DT Article
ID RESONANCE FLUORESCENCE; SINGLE-PHOTON; TRANSISTOR; GENERATION; PLASMONS;
CIRCUIT; STATES; FIELD; WAVE
AB We study two-photon scattering of a tightly focused weak light beam from a small atomic ensemble of two-level atoms (2LAs). This is similar to the scattering of photons from an atomic ensemble in a one-dimensional waveguide. The scaling of two-photon nonlinearity at single-photon resonance shows a nonmonotonic behavior with an increasing number of few identical 2LAs. The two-photon nonlinearity decays monotonically with an increasing number of atoms for incident photons detuned from single-photon resonance. Single-photon transport in two 2LAs is similar to that in a single V-type three-level atom (3LA). However, two-photon transport in these two systems shows very different line shapes. When single-photon transmission is zero in these systems, two transmitted photons are bunched together in a V-type 3LA, while their correlation is zero in two 2LAs. The difference in the two-photon line shape persists for few 2LAs and 3LAs. Therefore, the two-photon scattering of a tightly focused weak light beam can be used as a probe to detect atomic level structures of different atoms with similar transition energies.
C1 [Roy, Dibyendu] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Roy, Dibyendu] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RP Roy, D (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RI Roy, Dibyendu/D-3286-2013; Dibyendu, Roy /E-6903-2017
OI Roy, Dibyendu/0000-0002-8966-8677;
FU US Department of Energy through LANL/LDRD Program
FX The support of the US Department of Energy through LANL/LDRD Program for
this work is gratefully acknowledged.
NR 39
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U1 1
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD JUN 13
PY 2013
VL 87
IS 6
AR 063819
DI 10.1103/PhysRevA.87.063819
PG 10
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 163AL
UT WOS:000320307600004
ER
PT J
AU Simanovskaia, M
Jensen, K
Jarmola, A
Aulenbacher, K
Manson, N
Budker, D
AF Simanovskaia, Maria
Jensen, Kasper
Jarmola, Andrey
Aulenbacher, Kurt
Manson, Neil
Budker, Dmitry
TI Sidebands in optically detected magnetic resonance signals of nitrogen
vacancy centers in diamond
SO PHYSICAL REVIEW B
LA English
DT Article
ID NV
AB We study features in the optically detected magnetic resonance (ODMR) signals associated with negatively charged nitrogen-vacancy (NV-) centers coupled to other paramagnetic impurities in diamond. Our results are important for understanding ODMR line shapes and for optimization of devices based on NV- centers. We determine the origins of several side features to the unperturbed NV- magnetic resonance by studying their magnetic field and microwave power dependences. Side resonances separated by around 130 MHz are due to hyperfine coupling between NV- centers and nearest-neighbor C-13 nuclear spins. Side resonances separated by approximately {40, 260, 300} MHz are found to originate from simultaneous spin flipping of NV- centers and single substitutional nitrogen atoms. All results are in agreement with the presented theoretical calculations.
C1 [Simanovskaia, Maria; Jensen, Kasper; Jarmola, Andrey; Budker, Dmitry] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Aulenbacher, Kurt] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany.
[Manson, Neil] Australian Natl Univ, Laser Phys Ctr, Res Sch Phys & Engn, Canberra, ACT 0200, Australia.
[Budker, Dmitry] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Simanovskaia, M (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM budker@berkeley.edu
RI Budker, Dmitry/F-7580-2016; Jensen, Kasper/P-8359-2014
OI Budker, Dmitry/0000-0002-7356-4814; Jensen, Kasper/0000-0002-8417-4328
FU NSF [ECCS-1202258]; AFOSR/DARPA QuASAR program; IMOD; NATO SFP program;
Summer Undergraduate Research Fellowship; Danish Council for Independent
Research in Natural Sciences; Miller Institute for Basic Research in
Science
FX The authors of this paper are grateful to P. Kehayias, M. Ledbetter, B.
Patton, V. M. Acosta, and D. English for useful discussions and help
with the experiments. The authors also thank D. Suter and A. Gali for
fruitful discussions. This work was supported by NSF Grant No.
ECCS-1202258, the AFOSR/DARPA QuASAR program, IMOD, and the NATO SFP
program. M.S. gratefully acknowledges support from a Summer
Undergraduate Research Fellowship. K.J. acknowledges support from The
Danish Council for Independent Research in Natural Sciences. D.B.
acknowledges support by the Miller Institute for Basic Research in
Science.
NR 26
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 13
PY 2013
VL 87
IS 22
AR 224106
DI 10.1103/PhysRevB.87.224106
PG 11
WC Physics, Condensed Matter
SC Physics
GA 163AO
UT WOS:000320307900002
ER
PT J
AU Wang, Q
Cao, Y
Waugh, JA
Park, SR
Qi, TF
Korneta, OB
Cao, G
Dessau, DS
AF Wang, Q.
Cao, Y.
Waugh, J. A.
Park, S. R.
Qi, T. F.
Korneta, O. B.
Cao, G.
Dessau, D. S.
TI Dimensionality-controlled Mott transition and correlation effects in
single-layer and bilayer perovskite iridates
SO PHYSICAL REVIEW B
LA English
DT Article
ID SR2IRO4
AB We studied Sr2IrO4 and Sr3Ir2O7 using angle-resolved photoemission spectroscopy, making direct experimental determinations of intra- and intercell coupling parameters as well as Mott correlations and gap sizes. The results are generally consistent with LDA + U + spin-orbit coupling calculations, though the calculations missed the momentum positions of the dominant electronic states and neglected the importance of intercell coupling on the size of the Mott gap. The calculations also ignore the correlation-induced spectral peak widths, which are critical for making a connection to activation energies determined from transport experiments. The data indicate a dimensionality-controlled Mott transition in these 5d transition-metal oxides.
C1 [Wang, Q.; Cao, Y.; Waugh, J. A.; Park, S. R.; Dessau, D. S.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Wang, Q.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Qi, T. F.; Korneta, O. B.; Cao, G.] Univ Kentucky, Dept Phys & Astron, Ctr Adv Mat, Lexington, KY 40506 USA.
RP Wang, Q (reprint author), Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
EM qwang@lanl.gov; dessau@colorado.edu
RI Qi, Tongfei/A-7226-2013;
OI Cao, Yue/0000-0002-3989-158X
FU National Science Foundation [DMR-1007014, DMR-0856234, EPS-0814194]; US
Department of Energy; University of Wisconsin-Madison; University of
Wisconsin-Milwaukee
FX This work was supported by the National Science Foundation under Grant
No. DMR-1007014 to the University of Colorado and Grants No. DMR-0856234
and No. EPS-0814194 to the University of Kentucky. This work is also
based in part upon research conducted at the Advanced Light Source,
which is funded by the US Department of Energy, and at the Synchrotron
Radiation Center which is primarily funded by the University of
Wisconsin-Madison with supplemental support from the University of
Wisconsin-Milwaukee.
NR 27
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PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 13
PY 2013
VL 87
IS 24
DI 10.1103/PhysRevB.87.245109
PG 6
WC Physics, Condensed Matter
SC Physics
GA 163AQ
UT WOS:000320308100002
ER
PT J
AU Boswell, MS
Elliott, SR
Perepelitsa, DV
Devlin, M
Fotiades, N
Nelson, RO
Kawano, T
Guiseppe, VE
AF Boswell, M. S.
Elliott, S. R.
Perepelitsa, D. V.
Devlin, M.
Fotiades, N.
Nelson, R. O.
Kawano, T.
Guiseppe, V. E.
TI Neutron inelastic scattering in natural Cu as a background in
neutrinoless double-beta decay experiments
SO PHYSICAL REVIEW C
LA English
DT Article
ID CROSS-SECTIONS; GAMMA RAYS; CU-63; DETECTOR; NUCLEI; SEARCH; COPPER;
FE-56; MASS
AB Background: Experiments designed to study rare processes, such as neutrinoless double-beta decay (0 nu beta beta), are crucial tests for physics beyond the standard model. These experiments rely on reducing the intrinsic radioactive background to unprecedented levels, while adequately shielding the detectors from external sources of radioactivity.
Purpose: The purpose of this work is focused on understanding the background rates from neutron interactions in Cu shielding in regions around the Q values of many candidate 0 nu beta beta decay isotopes, as well as providing data for benchmarking Monte Carlo simulations of background events.
Methods: Using the broad-spectrum neutron beam at Los Alamos Neutron Science Center, we have measured gamma rays emitted from inelastic neutron scattering on Cu-nat.
Results: We extracted the level cross sections from the gamma-production cross section for 46 energy levels in Cu-nat. These level cross sections were compared with the available experimental data, as well as the ENDF/B-VII evaluation for discrete levels.
Conclusions: For energy levels above 2 MeV we found significant discrepancies between the suggested level cross sections for both nuclei and our data. We found reasonable agreement between our measurement and the ENDF/B-VII evaluation for the total neutron inelastic cross section in Cu-63. Our measurement of the total neutron inelastic scattering cross section in Cu-65 was 30% lower than the ENDF/B-VII evaluations, which we attribute to unobserved transitions in Cu-65. Furthermore, we found that the implementation of the ENDF/B-VII evaluation in simulations did not properly model the decay properties of the nucleus to the degree necessary for estimating backgrounds in rear-event searches. Finally, we examined the potential implications of our measurements on 0 nu beta beta measurements and found that many of the commonly studied 0 nu beta beta isotopes had Q values below the cutoff for ENDF/B-VII evaluated discrete levels in either Cu nucleus.
C1 [Boswell, M. S.; Elliott, S. R.; Perepelitsa, D. V.] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA.
[Devlin, M.; Fotiades, N.; Nelson, R. O.] Los Alamos Natl Lab, LANSCE Div, Los Alamos, NM 87545 USA.
[Kawano, T.] Los Alamos Natl Lab, Div Theory, Los Alamos, NM 87545 USA.
[Guiseppe, V. E.] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA.
RP Boswell, MS (reprint author), Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA.
EM mitzib@lanl.gov
RI Devlin, Matthew/B-5089-2013;
OI Devlin, Matthew/0000-0002-6948-2154; Fotiadis,
Nikolaos/0000-0003-1410-3871
FU US Department of Energy through the LANL/LDRD Program; US Department of
Energy, Office of Nuclear Physics [2011LANLE9BW]; US Department of
Energy [DE-AC52-06NA25396]
FX The authors are grateful to Dr. Tatsumi Koi and Dr. Jason Detwiler for
their helpful discussion of physics models in GEANT4. We gratefully
acknowledge the support of the US Department of Energy through the
LANL/LDRD Program for part of this work. We also acknowledge the support
of the US Department of Energy, Office of Nuclear Physics, under
Contract No. 2011LANLE9BW. This work benefited from the use of the Los
Alamos Neutron Science Center, funded by the US Department of Energy
under Contract No. DE-AC52-06NA25396.
NR 60
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U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 13
PY 2013
VL 87
IS 6
AR 064607
DI 10.1103/PhysRevC.87.064607
PG 13
WC Physics, Nuclear
SC Physics
GA 163AR
UT WOS:000320308200003
ER
PT J
AU Crawford, HL
Clark, RM
Fallon, P
Macchiavelli, AO
Baugher, T
Bazin, D
Beausang, CW
Berryman, JS
Bleuel, DL
Campbell, CM
Cromaz, M
de Angelis, G
Gade, A
Hughes, RO
Lee, IY
Lenzi, SM
Nowacki, F
Paschalis, S
Petri, M
Poves, A
Ratkiewicz, A
Ross, TJ
Sahin, E
Weisshaar, D
Wimmer, K
Winkler, R
AF Crawford, H. L.
Clark, R. M.
Fallon, P.
Macchiavelli, A. O.
Baugher, T.
Bazin, D.
Beausang, C. W.
Berryman, J. S.
Bleuel, D. L.
Campbell, C. M.
Cromaz, M.
de Angelis, G.
Gade, A.
Hughes, R. O.
Lee, I. Y.
Lenzi, S. M.
Nowacki, F.
Paschalis, S.
Petri, M.
Poves, A.
Ratkiewicz, A.
Ross, T. J.
Sahin, E.
Weisshaar, D.
Wimmer, K.
Winkler, R.
TI Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID RELATIVISTIC COULOMB-EXCITATION; NUCLEI; DEFORMATION; REGION; DECAY
AB Intermediate-energy Coulomb excitation measurements are performed on the N >= 40 neutron-rich nuclei Fe-66,Fe-68 and Cr-64. The reduced transition matrix elements providing a direct measure of the quadrupole collectivity B(E2; 2(1)(+) -> 0(1)(+) are determined for the first time in Fe-68(42) and Cr-64(40) and confirm a previous recoil distance method lifetime measurement in Fe-66(40). The results are compared to state-of-the- art large-scale shell-model calculations within the full fpgd neutron orbital model space using the Lenzi-Nowacki-Poves-Sieja effective interaction and confirm the results of the calculations that show these nuclei are well deformed.
C1 [Crawford, H. L.; Clark, R. M.; Fallon, P.; Macchiavelli, A. O.; Campbell, C. M.; Cromaz, M.; Lee, I. Y.; Paschalis, S.; Petri, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Baugher, T.; Bazin, D.; Berryman, J. S.; Gade, A.; Ratkiewicz, A.; Weisshaar, D.; Wimmer, K.; Winkler, R.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Baugher, T.; Gade, A.; Ratkiewicz, A.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Beausang, C. W.; Hughes, R. O.; Ross, T. J.] Univ Richmond, Richmond, VA 23173 USA.
[Bleuel, D. L.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[de Angelis, G.; Sahin, E.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy.
[Lenzi, S. M.] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy.
[Lenzi, S. M.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Nowacki, F.] IN2P3 CNRS, IPHC, F-67037 Strasbourg, France.
[Nowacki, F.] Univ Strasbourg, F-67037 Strasbourg, France.
[Poves, A.] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain.
[Poves, A.] Univ Autonoma Madrid, IFT UAM CSIC, E-28049 Madrid, Spain.
[Wimmer, K.] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA.
RP Crawford, HL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Gade, Alexandra/A-6850-2008; Poves, Alfredo/L-2594-2013; Petri,
Marina/H-4630-2016; Paschalis, Stefanos/H-8758-2016
OI Gade, Alexandra/0000-0001-8825-0976; Poves, Alfredo/0000-0001-7539-388X;
Petri, Marina/0000-0002-3740-6106; Paschalis,
Stefanos/0000-0002-9113-3778
FU National Science Foundation [PHY11-02511]; U. S. Department of Energy
[DE-AC02- 05CH11231, DE-FG02-08ER41556, DE-FG52-06NA26206,
DE-FG0205ER41379]; U. S. Department of Energy Lawrence Livermore
National Laboratory (LLNL) [DE-AC52-07NA27344]; MICINN (Spain)
[FPA2011-29854]; Comunidad de Madrid (Spain) [HEPHACOS S2009-ESP-147]
FX This work was supported by the National Science Foundation under Grant
No. PHY11-02511 (NSCL), and by the U. S. Department of Energy under
Awards No. DE-AC02- 05CH11231 (LBNL), No. DE-FG02-08ER41556 (NSCL), No.
DE-FG52-06NA26206, and No. DE-FG0205ER41379 (University of Richmond).
Part of this work was performed under the auspices of the U. S.
Department of Energy Lawrence Livermore National Laboratory (LLNL) under
Award No. DE-AC52-07NA27344. A. P. recognizes MICINN (Spain) (Grant No.
FPA2011-29854) and Comunidad de Madrid (Spain) (Project No. HEPHACOS
S2009-ESP-147) for support. We would also like to thank the operations
staff at NSCL for their outstanding work in beam delivery.
NR 33
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PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 13
PY 2013
VL 110
IS 24
AR 242701
DI 10.1103/PhysRevLett.110.242701
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 163AK
UT WOS:000320307500006
PM 25165918
ER
PT J
AU Poumirol, JM
Yu, W
Chen, X
Berger, C
de Heer, WA
Smith, ML
Ohta, T
Pan, W
Goerbig, MO
Smirnov, D
Jiang, Z
AF Poumirol, J. M.
Yu, W.
Chen, X.
Berger, C.
de Heer, W. A.
Smith, M. L.
Ohta, T.
Pan, W.
Goerbig, M. O.
Smirnov, D.
Jiang, Z.
TI Magnetoplasmons in Quasineutral Epitaxial Graphene Nanoribbons
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DIMENSIONAL ELECTRONIC SYSTEMS; STRONG MAGNETIC-FIELD; QUANTUM WIRES;
PLASMONS
AB We present an infrared transmission spectroscopy study of the inter-Landau-level excitations in quasineutral epitaxial graphene nanoribbon arrays. We observed a substantial deviation in energy of the L0(-1) (->) L-1(0) transition from the characteristic square root magnetic-field dependence of two-dimensional graphene. This deviation arises from the formation of an upper-hybrid mode between the Landau-level transition and the plasmon resonance. In the quantum regime, the hybrid mode exhibits a distinct dispersion relation, markedly different from that expected for conventional two-dimensional systems and highly doped graphene.
C1 [Poumirol, J. M.; Smirnov, D.] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Yu, W.; Chen, X.; Berger, C.; de Heer, W. A.; Jiang, Z.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Berger, C.] CNRS Inst Neel, Grenoble, France.
[Smith, M. L.; Ohta, T.; Pan, W.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Goerbig, M. O.] Univ Paris 11, Phys Solides Lab, CNRS UMR 8502, F-91405 Orsay, France.
RP Poumirol, JM (reprint author), Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
EM poumirol@magnet.fsu.edu; zhigang.jiang@physics.gatech.edu
FU DOE Office of Basic Energy Sciences, Division of Materials Science and
Engineering; Sandia LDRD; DOE BES through SNL; NSF [DMR-0654118]; State
of Florida; DOE; United States Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]
FX The IR measurement of this work was supported by the DOE
(DE-FG02-07ER46451), and the GNR array fabrication was supported by the
NSF (DMR-0820382). The work at SNL was supported by the DOE Office of
Basic Energy Sciences, Division of Materials Science and Engineering,
and by Sandia LDRD. The work at GaTech was partially supported by the
DOE BES through a contract with SNL. The NHMFL is supported by the NSF
(DMR-0654118), by the State of Florida, and by the DOE. Sandia National
Laboratories is a multiprogram laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the United States Department of Energy's National Nuclear Security
Administration under Contract No. DE-AC04-94AL85000.
NR 36
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U2 48
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 13
PY 2013
VL 110
IS 24
AR 246803
DI 10.1103/PhysRevLett.110.246803
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 163AK
UT WOS:000320307500013
PM 25165953
ER
PT J
AU Li, HX
Gao, JE
Wu, Y
Jiao, ZB
Ma, D
Stoica, AD
Wang, XL
Ren, Y
Miller, MK
Lu, ZP
AF Li, H. X.
Gao, J. E.
Wu, Y.
Jiao, Z. B.
Ma, D.
Stoica, A. D.
Wang, X. L.
Ren, Y.
Miller, M. K.
Lu, Z. P.
TI Enhancing glass-forming ability via frustration of nano-clustering in
alloys with a high solvent content
SO SCIENTIFIC REPORTS
LA English
DT Article
ID BULK METALLIC GLASSES; ULTRAFINE GRAIN-STRUCTURE; SOFT-MAGNETIC-ALLOYS;
HIGH B-S; AMORPHOUS PHASE; CU; ADDITIONS; CRYSTALLIZATION; KINETICS
AB The glass-forming ability (GFA) of alloys with a high-solvent content such as soft magnetic Fe-based and Al-based alloys is usually limited due to strong formation of the solvent-based solid solution phase. Herein, we report that the GFA of soft magnetic Fe-based alloys (with >70 at.% Fe to ensure large saturation magnetization) could be dramatically improved by doping with only 0.3 at.% Cu which has a positive enthalpy of mixing with Fe. It was found that an appropriate Cu addition could enhance the liquid phase stability and crystallization resistance by destabilizing the alpha-Fe nano-clusters due to the necessity to redistribute the Cu atoms. However, excessive Cu doping would stimulate nucleation of the alpha-Fe nano-clusters due to the repulsive nature between the Fe and Cu atoms, thus deteriorating the GFA. Our findings provide new insights into understanding of glass formation in general.
C1 [Li, H. X.; Gao, J. E.; Wu, Y.; Jiao, Z. B.; Lu, Z. P.] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China.
[Ma, D.; Stoica, A. D.; Miller, M. K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Wang, X. L.] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China.
[Ren, Y.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Lu, ZP (reprint author), Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China.
EM luzp@ustb.edu.cn
RI Ma, Dong/G-5198-2011; Stoica, Alexandru/K-3614-2013; Wu,
Yuan/C-4025-2015; Lu, Zhao-Ping/A-2718-2009
OI Ma, Dong/0000-0003-3154-2454; Stoica, Alexandru/0000-0001-5118-0134; Wu,
Yuan/0000-0001-7857-0247; Wang, Xun-Li/0000-0003-4060-8777;
FU National Natural Science Foundation of China [51010001, 51001009]; 111
Project [B07003]; Program for Changjiang Scholars and Innovative
Research Team in University; Scientific User Facilities Division, Office
of Basic Energy Sciences, U.S. Department of Energy; Laboratory Directed
Research and Development program of Oak Ridge National Laboratory
(ORNL); US Department of Energy [DE-AC05-00OR22725]
FX This research was supported in part by National Natural Science
Foundation of China (No. 51010001 and 51001009), 111 Project (B07003)
and Program for Changjiang Scholars and Innovative Research Team in
University. Research at the Oak Ridge National Laboratory ShaRE User
Facility was sponsored by the Scientific User Facilities Division,
Office of Basic Energy Sciences, U.S. Department of Energy. This
research was also supported in part by the Laboratory Directed Research
and Development program of Oak Ridge National Laboratory (ORNL), managed
by UT-Battelle, LLC for the US Department of Energy under Contract No.
DE-AC05-00OR22725. This work benefited from the use of 11-ID-C, Advanced
Photon Source of Argonne National Laboratory supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences.
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PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2045-2322
J9 SCI REP-UK
JI Sci Rep
PD JUN 13
PY 2013
VL 3
AR 1983
DI 10.1038/srep01983
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 162YZ
UT WOS:000320303400003
PM 23760427
ER
PT J
AU Singhal, P
Boyle, A
Brooks, ML
Infanger, S
Letts, S
Small, W
Maitland, DJ
Wilson, TS
AF Singhal, Pooja
Boyle, Anthony
Brooks, Marilyn L.
Infanger, Stephen
Letts, Steve
Small, Ward
Maitland, Duncan J.
Wilson, Thomas S.
TI Controlling the Actuation Rate of Low-Density Shape-Memory Polymer Foams
in Water
SO MACROMOLECULAR CHEMISTRY AND PHYSICS
LA English
DT Article
DE actuation rate; biomaterials; hydrophobicity; polyurethanes;
shape-memory foams
ID DUCTILE CELLULAR SOLIDS; THERMOMECHANICAL PROPERTIES; RECOVERY;
MOISTURE; PROGRESS
AB SMPs have been shown to actuate below their dry glass transition temperatures in the presence of moisture due to plasticization. This behavior has been proposed as a self-actuating mechanism of SMPs in water/physiological media. However, control over the SMP actuation rate, a critical factor for in vivo transcatheter device delivery applications, has not been previously reported. Here, a series of polyurethane SMPs with systematically varied hydrophobicity is described that permits control of the time for their complete shape recovery in water from under 2 min to more than 24 h. This control over the SMP actuation rate can potentially provide significant improvement in their delivery under conditions, which may expose them to high-moisture environments prior to actuation.
C1 [Singhal, Pooja; Boyle, Anthony; Infanger, Stephen; Maitland, Duncan J.] Dept Biomed Engn, College Stn, TX 77843 USA.
[Singhal, Pooja; Brooks, Marilyn L.; Letts, Steve; Small, Ward; Wilson, Thomas S.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA.
RP Maitland, DJ (reprint author), Dept Biomed Engn, 5045 Emerging Technol Bldg,3120 TAMU, College Stn, TX 77843 USA.
EM djmaitland@tamu.edu; wilson97@llnl.gov
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; National Institutes of Health/National Institute of
Biomedical Imaging and Bioengineering [R01-EB000462]; Lawrence Livermore
National Laboratory Directed Research and Development (LDRD) [04-LW-054,
04-ERD-093]
FX This work was partially performed under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344 and supported by the National Institutes of
Health/National Institute of Biomedical Imaging and Bioengineering Grant
R01-EB000462 and by Lawrence Livermore National Laboratory Directed
Research and Development (LDRD) Grants 04-LW-054 and 04-ERD-093. The
authors would like to acknowledge Thomas Yong Han (LLNL) for his help in
the contact angle measurements and technical discussions.
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U1 0
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PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1022-1352
EI 1521-3935
J9 MACROMOL CHEM PHYS
JI Macromol. Chem. Phys.
PD JUN 13
PY 2013
VL 214
IS 11
SI SI
BP 1204
EP 1214
DI 10.1002/macp.201200342
PG 11
WC Polymer Science
SC Polymer Science
GA 156RK
UT WOS:000319839900006
PM 25530688
ER
PT J
AU Hearon, K
Nash, LD
Volk, BL
Ware, T
Lewicki, JP
Voit, WE
Wilson, TS
Maitland, DJ
AF Hearon, Keith
Nash, Landon D.
Volk, Brent L.
Ware, Taylor
Lewicki, James P.
Voit, Walter E.
Wilson, Thomas S.
Maitland, Duncan J.
TI Electron Beam Crosslinked Polyurethane Shape Memory Polymers with
Tunable Mechanical Properties
SO MACROMOLECULAR CHEMISTRY AND PHYSICS
LA English
DT Article
DE electron beam curing; polyurethanes; processing; stimuli-sensitive
polymers; structure-property relations
ID THERMOMECHANICAL PROPERTIES; LINKING; RADIATION; IRRADIATION; NETWORKS;
BEHAVIOR; POLYCAPROLACTONE; POLYETHYLENE; ELASTOMER; PRESSURE
AB Novel electron beam crosslinked polyurethane shape memory polymers with advanced processing capabilities and tunable thermomechanical properties have been synthesized and characterized. We demonstrate the ability to manipulate crosslink density in order to finely tune rubbery modulus, strain capacity, ultimate tensile strength, recovery stress, and glass transition temperature. This objective is accomplished for the first time in a low-molecular-weight polymer system through the precise engineering of thermoplastic resin precursors suitable for mass thermoplastic processing. Neurovascular stent prototypes were fabricated by dip-coating and laser machining to demonstrate processability.
C1 [Hearon, Keith; Nash, Landon D.; Maitland, Duncan J.] Texas A&M Univ, Dept Biomed Engn, College Stn, TX 77843 USA.
[Volk, Brent L.] Texas A&M Univ, Mat Sci & Engn Program, College Stn, TX 77843 USA.
[Ware, Taylor; Voit, Walter E.] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA.
[Lewicki, James P.; Wilson, Thomas S.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Div Chem Sci, Livermore, CA 94550 USA.
RP Maitland, DJ (reprint author), Texas A&M Univ, Dept Biomed Engn, College Stn, TX 77843 USA.
EM djmaitland@tamu.edu
RI Ware, Taylor/I-2812-2013; Ware, Taylor/A-7130-2017; Voit,
Walter/D-1185-2010
OI Ware, Taylor/0000-0001-7996-7393; Voit, Walter/0000-0003-0135-0531
FU National Science Foundation (NSF) Graduate Research Fellowship Program
(GRFP) fellowship
FX Funding for the work of K. H. and T. W. was provided by the National
Science Foundation (NSF) Graduate Research Fellowship Program (GRFP)
fellowship.
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PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1022-1352
J9 MACROMOL CHEM PHYS
JI Macromol. Chem. Phys.
PD JUN 13
PY 2013
VL 214
IS 11
SI SI
BP 1258
EP 1272
DI 10.1002/macp.201200348
PG 15
WC Polymer Science
SC Polymer Science
GA 156RK
UT WOS:000319839900011
PM 25411531
ER
PT J
AU Liu, N
Zheng, ZQ
Yao, YX
Zhang, GP
Lu, N
Li, PJ
Wang, CZ
Ho, KM
AF Liu, Nuo
Zheng, Zheqi
Yao, Yongxin
Zhang, Guiping
Lu, Ning
Li, Pingjian
Wang, Caizhuang
Ho, Kaiming
TI Fine band gap modulation effects of aGNRs by an organic functional
group: a first-principles study
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID DOPED CARBON NANOTUBES; GRAPHENE NANORIBBONS; ELECTRONIC-STRUCTURE;
BILAYER GRAPHENE; SILICON SURFACES; MOLECULAR DEVICES; ATTACHMENT;
MONOLAYERS; COVALENT; EXCITONS
AB We report a first-principles study of the electronic structure of functionalized graphene nanoribbon (aGNRs-f) by an organic functional group (CH2C6H5) and find that CH2C6H5 functionalized group does not produce any electronic states in the gap and the band gap is direct. By changing both the density of the organic functional group and the width of the aGNRs-f, a band gap tuning exhibits a fine three-family behaviour through the side effect. Meanwhile, the carriers at the conduction band minimum and the valence band maximum are located in both CH2C6H5 and aGNR regions when the density of CH2C6H5 is big, while they distribute dominantly in aGNR conversely. The fine band gap modulation effects make aGNRs-f good candidates with high quantum efficiency and a significantly wider wavelength range from 750 to 93 924 nm for lasers, light-emitting diodes and photodetectors due to the direct band gap and small carrier effective masses.
C1 [Liu, Nuo; Zheng, Zheqi; Li, Pingjian] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Peoples R China.
[Liu, Nuo; Yao, Yongxin; Zhang, Guiping; Wang, Caizhuang; Ho, Kaiming] US DOE, Ames Lab, Ames, IA 50011 USA.
[Liu, Nuo; Yao, Yongxin; Zhang, Guiping; Wang, Caizhuang; Ho, Kaiming] Iowa State Univ, Dept Phys, Ames, IA 50011 USA.
[Zhang, Guiping] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.
[Lu, Ning] IL Motorola Solut Inc, Schaumburg, IL 60196 USA.
RP Liu, N (reprint author), Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Peoples R China.
EM liunuo2002@gmail.com
RI Zhang, Guiping/F-4390-2011; lu, ning/H-1993-2011
OI Zhang, Guiping/0000-0001-8697-5711;
FU US Department of Energy [DE-AC02-07CH11358]; Office of Basic Energy
Sciences; International Corporation and Communication Scholarship of
Sichuan Province [2012HH0027]; National Natural Science Foundation of
China [51202022, 11204372]
FX Ames Laboratory is operated for the US Department of Energy by the Iowa
State University under Contract No DE-AC02-07CH11358. This work was
supported by the Director for Energy Research, Office of Basic Energy
Sciences including a grant of computer time at the National Energy
Research Supercomputing center (NERSC) in Berkeley. Nuo Liu's work at
Ames Laboratory was supported by the International Corporation and
Communication Scholarship of Sichuan Province (Grant No 2012HH0027) and
the National Natural Science Foundation of China (Grant No 51202022). GP
Zhang acknowledges the support by the National Natural Science
Foundation of China (Grant No 11204372).
NR 55
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U1 2
U2 32
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD JUN 13
PY 2013
VL 46
IS 23
AR 235101
DI 10.1088/0022-3727/46/23/235101
PG 7
WC Physics, Applied
SC Physics
GA 152YR
UT WOS:000319568800002
ER
PT J
AU Abazov, VM
Abbott, B
Acharya, BS
Adams, M
Adams, T
Agnew, JP
Alexeev, GD
Alkhazov, G
Alton, A
Askew, A
Atkins, S
Augsten, K
Avila, C
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, S
Barberis, E
Baringer, P
Bartlett, JF
Bassler, U
Bazterra, V
Bean, A
Beattie, M
Begalli, M
Bellantoni, L
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bhat, PC
Bhatia, S
Bhatnagar, V
Blazey, G
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Boos, EE
Borissov, G
Brandt, A
Brandt, O
Brock, R
Bross, A
Brown, D
Bu, XB
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Buszello, CP
Camacho-Perez, E
Casey, BCK
Castilla-Valdez, H
Caughron, S
Chakrabarti, S
Chan, KM
Chandra, A
Chapon, E
Chen, G
Cho, SW
Choi, S
Choudhary, B
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Cutts, D
Das, A
Davies, G
de Jong, SJ
De la la Cruz-Burelo, E
Deliot, F
Demina, R
Denisov, D
Denisov, SP
Desai, S
Deterre, C
DeVaughan, K
Diehl, HT
Diesburg, M
Ding, PF
Dominguez, A
Dubey, A
Dudko, LV
Duperrin, A
Dutt, S
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Evans, H
Evdokimov, VN
Feng, L
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fuess, S
Garbincius, PH
Garcia-Bellido, A
Garcia-Gonzalez, JA
Gavrilov, V
Geng, W
Gerber, CE
Gershtein, Y
Ginther, G
Golovanov, G
Grannis, PD
Greder, S
Greenlee, H
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunwald, MW
Guillemin, T
Gutierrez, G
Gutierrez, P
Haley, J
Han, L
Harder, K
Harel, A
Hart, B
Hauptman, JM
Hays, J
Head, T
Hebbeker, T
Hedin, D
Hegab, H
Heinson, AP
Heintz, U
Hensel, C
Heredia-De La Cruz, I
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hogan, J
Hohlfeld, M
Howley, I
Hubacek, Z
Hynek, V
Iashvili, I
Ilchenko, Y
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jayasinghe, A
Holzbauer, J
Jeong, MS
Jesik, R
Jiang, P
Johns, K
Johnson, E
Johnson, M
Jonckheere, A
Jonsson, P
Joshi, J
Jung, AW
Juste, A
Kajfasz, E
Karmanov, D
Katsanos, I
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Kiselevich, I
Kohli, JM
Kozelov, AV
Kraus, J
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Lammers, S
Lamont, I
Lebrun, P
Lee, HS
Lee, SW
Lee, WM
Lei, X
Lellouch, J
Li, D
Li, H
Li, L
Li, QZ
Lim, JK
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, H
Liu, Y
Lobodenko, A
Lokajicek, M
de Sa, RL
Luna-Garcia, R
Lyon, AL
Maciel, AKA
Madar, R
Magana-Villalba, R
Malik, S
Malyshev, VL
Mansour, J
Martinez-Ortega, J
Mason, N
McCarthy, R
McGivern, CL
Meijer, MM
Melnitchouk, A
Menezes, D
Mercadante, PG
Merkin, M
Meyer, A
Meyer, J
Miconi, F
Mondal, NK
Mulhearn, M
Nagy, E
Narain, M
Nayyar, R
Neal, HA
Negret, JP
Neustroev, P
Nguyen, HT
Nunnemann, T
Orduna, J
Osman, N
Osta, J
Pal, A
Parashar, N
Parihar, V
Park, SK
Partridge, R
Parua, N
Patwa, A
Penning, B
Perfilov, M
Peters, Y
Petridis, K
Petrillo, G
Petroff, P
Pleier, MA
Podstavkov, VM
Popov, AV
Prewitt, M
Price, D
Prokopenko, N
Qian, J
Quadt, A
Quinn, B
Ratoff, PN
Razumov, I
Ripp-Baudot, I
Rizatdinova, F
Rominsky, M
Ross, A
Royon, C
Rubinov, P
Ruchti, R
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Santos, AS
Savage, G
Sawyer, L
Scanlon, T
Schamberger, RD
Scheglov, Y
Schellman, H
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shary, V
Shaw, S
Shchukin, AA
Simak, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Soustruznik, K
Stark, J
Stoyanova, DA
Strauss, M
Suter, L
Svoisky, P
Titov, M
Tokmenin, VV
Tsai, YT
Tsybychev, D
Tuchming, B
Tully, C
Uvarov, L
Uvarov, S
Uzunyan, S
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verkheev, AY
Vertogradov, LS
Verzocchi, M
Vesterinen, M
Vilanova, D
Vokac, P
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weichert, J
Welty-Rieger, L
Williams, MRJ
Wilson, GW
Wobisch, M
Wood, DR
Wyatt, TR
Xie, Y
Yamada, R
Yang, S
Yasuda, T
Yatsunenko, YA
Ye, W
Ye, Z
Yin, H
Yip, K
Youn, SW
Yu, JM
Zennamo, J
Zhao, TG
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zivkovic, L
AF Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Agnew, J. P.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Askew, A.
Atkins, S.
Augsten, K.
Avila, C.
Badaud, F.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, S.
Barberis, E.
Baringer, P.
Bartlett, J. F.
Bassler, U.
Bazterra, V.
Bean, A.
Beattie, M.
Begalli, M.
Bellantoni, L.
Beri, S. B.
Bernardi, G.
Bernhard, R.
Bertram, I.
Besancon, M.
Beuselinck, R.
Bhat, P. C.
Bhatia, S.
Bhatnagar, V.
Blazey, G.
Blessing, S.
Bloom, K.
Boehnlein, A.
Boline, D.
Boos, E. E.
Borissov, G.
Brandt, A.
Brandt, O.
Brock, R.
Bross, A.
Brown, D.
Bu, X. B.
Buehler, M.
Buescher, V.
Bunichev, V.
Burdin, S.
Buszello, C. P.
Camacho-Perez, E.
Casey, B. C. K.
Castilla-Valdez, H.
Caughron, S.
Chakrabarti, S.
Chan, K. M.
Chandra, A.
Chapon, E.
Chen, G.
Cho, S. W.
Choi, S.
Choudhary, B.
Cihangir, S.
Claes, D.
Clutter, J.
Cooke, M.
Cooper, W. E.
Corcoran, M.
Couderc, F.
Cousinou, M. -C.
Cutts, D.
Das, A.
Davies, G.
de Jong, S. J.
De la Cruz-Burelo, E.
Deliot, F.
Demina, R.
Denisov, D.
Denisov, S. P.
Desai, S.
Deterre, C.
DeVaughan, K.
Diehl, H. T.
Diesburg, M.
Ding, P. F.
Dominguez, A.
Dubey, A.
Dudko, L. V.
Duperrin, A.
Dutt, S.
Eads, M.
Edmunds, D.
Ellison, J.
Elvira, V. D.
Enari, Y.
Evans, H.
Evdokimov, V. N.
Feng, L.
Ferbel, T.
Fiedler, F.
Filthaut, F.
Fisher, W.
Fisk, H. E.
Fortner, M.
Fox, H.
Fuess, S.
Garbincius, P. H.
Garcia-Bellido, A.
Garcia-Gonzalez, J. A.
Gavrilov, V.
Geng, W.
Gerber, C. E.
Gershtein, Y.
Ginther, G.
Golovanov, G.
Grannis, P. D.
Greder, S.
Greenlee, H.
Grenier, G.
Gris, Ph.
Grivaz, J. -F.
Grohsjean, A.
Gruenendahl, S.
Gruenwald, M. W.
Guillemin, T.
Gutierrez, G.
Gutierrez, P.
Haley, J.
Han, L.
Harder, K.
Harel, A.
Hart, B.
Hauptman, J. M.
Hays, J.
Head, T.
Hebbeker, T.
Hedin, D.
Hegab, H.
Heinson, A. P.
Heintz, U.
Hensel, C.
Heredia-De La Cruz, I.
Herner, K.
Hesketh, G.
Hildreth, M. D.
Hirosky, R.
Hoang, T.
Hobbs, J. D.
Hoeneisen, B.
Hogan, J.
Hohlfeld, M.
Howley, I.
Hubacek, Z.
Hynek, V.
Iashvili, I.
Ilchenko, Y.
Illingworth, R.
Ito, A. S.
Jabeen, S.
Jaffre, M.
Jayasinghe, A.
Holzbauer, J.
Jeong, M. S.
Jesik, R.
Jiang, P.
Johns, K.
Johnson, E.
Johnson, M.
Jonckheere, A.
Jonsson, P.
Joshi, J.
Jung, A. W.
Juste, A.
Kajfasz, E.
Karmanov, D.
Katsanos, I.
Kehoe, R.
Kermiche, S.
Khalatyan, N.
Khanov, A.
Kharchilava, A.
Kharzheev, Y. N.
Kiselevich, I.
Kohli, J. M.
Kozelov, A. V.
Kraus, J.
Kumar, A.
Kupco, A.
Kurca, T.
Kuzmin, V. A.
Lammers, S.
Lamont, I.
Lebrun, P.
Lee, H. S.
Lee, S. W.
Lee, W. M.
Lei, X.
Lellouch, J.
Li, D.
Li, H.
Li, L.
Li, Q. Z.
Lim, J. K.
Lincoln, D.
Linnemann, J.
Lipaev, V. V.
Lipton, R.
Liu, H.
Liu, Y.
Lobodenko, A.
Lokajicek, M.
Lopes de Sa, R.
Luna-Garcia, R.
Lyon, A. L.
Maciel, A. K. A.
Madar, R.
Magana-Villalba, R.
Malik, S.
Malyshev, V. L.
Mansour, J.
Martinez-Ortega, J.
Mason, N.
McCarthy, R.
McGivern, C. L.
Meijer, M. M.
Melnitchouk, A.
Menezes, D.
Mercadante, P. G.
Merkin, M.
Meyer, A.
Meyer, J.
Miconi, F.
Mondal, N. K.
Mulhearn, M.
Nagy, E.
Narain, M.
Nayyar, R.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nguyen, H. T.
Nunnemann, T.
Orduna, J.
Osman, N.
Osta, J.
Pal, A.
Parashar, N.
Parihar, V.
Park, S. K.
Partridge, R.
Parua, N.
Patwa, A.
Penning, B.
Perfilov, M.
Peters, Y.
Petridis, K.
Petrillo, G.
Petroff, P.
Pleier, M. -A.
Podstavkov, V. M.
Popov, A. V.
Prewitt, M.
Price, D.
Prokopenko, N.
Qian, J.
Quadt, A.
Quinn, B.
Ratoff, P. N.
Razumov, I.
Ripp-Baudot, I.
Rizatdinova, F.
Rominsky, M.
Ross, A.
Royon, C.
Rubinov, P.
Ruchti, R.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Santos, A. S.
Savage, G.
Sawyer, L.
Scanlon, T.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schwanenberger, C.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shary, V.
Shaw, S.
Shchukin, A. A.
Simak, V.
Skubic, P.
Slattery, P.
Smirnov, D.
Snow, G. R.
Snow, J.
Snyder, S.
Soeldner-Rembold, S.
Sonnenschein, L.
Soustruznik, K.
Stark, J.
Stoyanova, D. A.
Strauss, M.
Suter, L.
Svoisky, P.
Titov, M.
Tokmenin, V. V.
Tsai, Y. -T.
Tsybychev, D.
Tuchming, B.
Tully, C.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Verkheev, A. Y.
Vertogradov, L. S.
Verzocchi, M.
Vesterinen, M.
Vilanova, D.
Vokac, P.
Wahl, H. D.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weichert, J.
Welty-Rieger, L.
Williams, M. R. J.
Wilson, G. W.
Wobisch, M.
Wood, D. R.
Wyatt, T. R.
Xie, Y.
Yamada, R.
Yang, S.
Yasuda, T.
Yatsunenko, Y. A.
Ye, W.
Ye, Z.
Yin, H.
Yip, K.
Youn, S. W.
Yu, J. M.
Zennamo, J.
Zhao, T. G.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zivkovic, L.
CA D0 Collaboration
TI Measurement of direct CP violation parameters in B-+/- -> J/psi K-+/-
and B-+/- -> J/psi pi(+/-) decays with 10.4 fb(-1) of Tevatron data
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DETECTOR; MODEL
AB We present a measurement of the direct CP-violating charge asymmetry in B-+/- mesons decaying to J/psi K-+/- and J/psi pi(+/-) where J/psi decays to mu(+)mu(-), using the full run II data set of 10.4 fb(-1) of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. A difference in the yield of B- and B+ mesons in these decays is found by fitting to the difference between their reconstructed invariant mass distributions resulting in asymmetries of A(J/psi K) = [0.59 +/- 0.37]%, which is the most precise measurement to date, and A(J/psi pi) = [-4.2 +/- 4.5]%. Both measurements are consistent with standard model predictions.
C1 [Maciel, A. K. A.; Santos, A. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil.
[Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil.
[Han, L.; Jiang, P.; Liu, Y.; Yang, S.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Avila, C.] Univ Los Andes, Bogota, Colombia.
[Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic.
[Augsten, K.; Hubacek, Z.; Hynek, V.; Simak, V.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic.
[Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador.
[Badaud, F.; Gris, Ph.] Univ Clermont Ferrand, CNRS IN2P3, LPC, Clermont Ferrand, France.
[Sajot, G.; Stark, J.] Univ Grenoble 1, LPSC, CNRS IN2P3, Inst Natl Polytech Grenoble, Grenoble, France.
[Cousinou, M. -C.; Duperrin, A.; Geng, W.; Kajfasz, E.; Kermiche, S.; Nagy, E.; Osman, N.] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France.
[Grivaz, J. -F.; Guillemin, T.; Jaffre, M.; Petroff, P.] Univ Paris 11, LAL, CNRS IN2P3, Orsay, France.
[Bernardi, G.; Brown, D.; Enari, Y.; Lellouch, J.; Li, D.; Zivkovic, L.] Univ Paris 06, LPNHE, CNRS IN2P3, Paris, France.
[Bernardi, G.; Brown, D.; Enari, Y.; Lellouch, J.; Li, D.; Zivkovic, L.] Univ Paris 07, LPNHE, CNRS IN2P3, Paris, France.
[Bassler, U.; Besancon, M.; Chapon, E.; Couderc, F.; Deliot, F.; Grohsjean, A.; Hubacek, Z.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, Irfu, SPP, Saclay, France.
[Greder, S.; Miconi, F.; Ripp-Baudot, I.] Univ Strasbourg, IPHC, CNRS IN2P3, Strasbourg, France.
[Grenier, G.; Kurca, T.; Lebrun, P.] Univ Lyon 1, CNRS IN2P3, IPNL, F-69622 Villeurbanne, France.
[Grenier, G.; Kurca, T.; Lebrun, P.] Univ Lyon, Lyon, France.
[Hebbeker, T.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany.
[Bernhard, R.; Madar, R.] Univ Freiburg, Inst Phys, Freiburg, Germany.
[Brandt, O.; Deterre, C.; Hensel, C.; Mansour, J.; Meyer, J.; Peters, Y.; Quadt, A.; Shabalina, E.] Univ Gottingen, Inst Phys 2, Gottingen, Germany.
[Buescher, V.; Fiedler, F.; Hohlfeld, M.] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
[Nunnemann, T.; Sanders, M. P.] Univ Munich, Munich, Germany.
[Beri, S. B.; Bhatnagar, V.; Dutt, S.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India.
[Choudhary, B.; Dubey, A.] Univ Delhi, Delhi 110007, India.
[Acharya, B. S.; Banerjee, S.; Mondal, N. K.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India.
[Gruenwald, M. W.] Univ Coll Dublin, Dublin 2, Ireland.
[Cho, S. W.; Choi, S.; Jeong, M. S.; Lee, H. S.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea.
[Camacho-Perez, E.; Castilla-Valdez, H.; De la Cruz-Burelo, E.; Garcia-Gonzalez, J. A.; Heredia-De La Cruz, I.; Luna-Garcia, R.; Magana-Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[de Jong, S. J.; Filthaut, F.; Jesik, R.; Meijer, M. M.; van Leeuwen, W. M.] Nikhef, Amsterdam, Netherlands.
[de Jong, S. J.; Filthaut, F.; Meijer, M. M.] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands.
[Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Verkheev, A. Y.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
[Gavrilov, V.; Kiselevich, I.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia.
[Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Lipaev, V. V.; Popov, A. V.; Prokopenko, N.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia.
[Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Scheglov, Y.; Uvarov, L.; Zhou, B.] Petersburg Nucl Phys Inst, St Petersburg, Russia.
[Juste, A.] ICREA, Barcelona, Spain.
[Juste, A.] IFAE, Barcelona, Spain.
[Buszello, C. P.] Uppsala Univ, Uppsala, Sweden.
[Ross, A.] Univ Lancaster, Lancaster LA1 4YB, England.
[Beuselinck, R.; Davies, G.; Hays, J.; Jonsson, P.; Scanlon, T.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Agnew, J. P.; Ding, P. F.; Harder, K.; Head, T.; Hesketh, G.; McGivern, C. L.; Petridis, K.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Vesterinen, M.; Wyatt, T. R.; Zhao, T. G.] Univ Manchester, Manchester M13 9PL, Lancs, England.
[Das, A.; Johns, K.; Lei, X.; Nayyar, R.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
[Ellison, J.; Heinson, A. P.; Joshi, J.; Li, L.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hoang, T.; Lee, W. M.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Buehler, M.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Garbincius, P. H.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Herner, K.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Jung, A. W.; Khalatyan, N.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Melnitchouk, A.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Savage, G.; Verzocchi, M.; Wang, M. H. L. S.; Xie, Y.; Yamada, R.; Yasuda, T.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Bazterra, V.; Gerber, C. E.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Eads, M.; Feng, L.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA.
[Schellman, H.; Welty-Rieger, L.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Williams, M. R. J.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Chen, G.; Clutter, J.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Atkins, S.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA.
[Barberis, E.; Haley, J.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; Neal, H. A.; Qian, J.; Yu, J. M.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Brock, R.; Caughron, S.; Edmunds, D.; Fisher, W.; Geng, W.; Johnson, E.; Linnemann, J.; Schwienhorst, R.; Shaw, S.] Michigan State Univ, E Lansing, MI 48824 USA.
[Bhatia, S.; Holzbauer, J.; Kraus, J.; Quinn, B.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
[Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA.
[Tully, C.] Princeton Univ, Princeton, NJ 08544 USA.
[Iashvili, I.; Kharchilava, A.; Kumar, A.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Boline, D.; Chakrabarti, S.; Grannis, P. D.; Hobbs, J. D.; Lopes de Sa, R.; McCarthy, R.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Patwa, A.; Pleier, M. -A.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Snow, J.; Snyder, S.] Langston Univ, Langston, OK 73050 USA.
[Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA.
[Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Cutts, D.; Heintz, U.; Jabeen, S.; Narain, M.; Parihar, V.; Partridge, R.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; Howley, I.; Pal, A.] Univ Texas Arlington, Arlington, TX 76019 USA.
[Ilchenko, Y.; Kehoe, R.; Liu, H.] So Methodist Univ, Dallas, TX 75275 USA.
[Chandra, A.; Corcoran, M.; Hogan, J.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA.
[Hirosky, R.; Li, H.; Mulhearn, M.; Nguyen, H. T.] Univ Virginia, Charlottesville, VA 22904 USA.
[Watts, G.] Univ Washington, Seattle, WA 98195 USA.
RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia.
RI Li, Liang/O-1107-2015; Santos, Angelo/K-5552-2012; Shabalina,
Elizaveta/M-2227-2013; Dudko, Lev/D-7127-2012; Fisher, Wade/N-4491-2013;
Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014;
Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov,
Alexander/J-3812-2014; Lei, Xiaowen/O-4348-2014; Gutierrez,
Phillip/C-1161-2011; Merkin, Mikhail/D-6809-2012
OI Li, Liang/0000-0001-6411-6107; Dudko, Lev/0000-0002-4462-3192; Sharyy,
Viatcheslav/0000-0002-7161-2616; Lei, Xiaowen/0000-0002-2564-8351;
FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); MON (Russia);
NRC KI (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP
(Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias
(Colombia); CONACyT (Mexico); NRF (Korea); FOM (The Netherlands); STFC
(United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic);
GACR (Czech Republic); BMBF (Germany); DFG (Germany); SFI (Ireland);
Swedish Research Council (Sweden); CAS (China); CNSF (China)
FX We thank the staffs at Fermilab and collaborating institutions and
acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3
(France); MON, NRC KI, and RFBR (Russia); CNPq, FAPERJ, FAPESP, and
FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT
(Mexico); NRF (Korea); FOM (The Netherlands); STFC and the Royal Society
(United Kingdom); MSMT and GACR (Czech Republic); BMBF and DFG
(Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS
and CNSF (China).
NR 22
TC 10
Z9 10
U1 2
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 12
PY 2013
VL 110
IS 24
AR 241801
DI 10.1103/PhysRevLett.110.241801
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 163AJ
UT WOS:000320307400004
ER
PT J
AU Park, YI
Kuo, CY
Martinez, JS
Park, YS
Postupna, O
Zhugayevych, A
Kim, S
Park, J
Tretiak, S
Wang, HL
AF Park, Young Il
Kuo, Cheng-Yu
Martinez, Jennifer S.
Park, Young-Shin
Postupna, Olena
Zhugayevych, Andriy
Kim, Seungho
Park, Jongwook
Tretiak, Sergei
Wang, Hsing-Lin
TI Tailored Electronic Structure and Optical Properties of Conjugated
Systems through Aggregates and Dipole-Dipole Interactions
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE phenylene vinylene; Horner-Wadsworth-Emmons reaction; solvatochromism;
aggregates; dipole-dipole interactions; OLED
ID INTERCHAIN INTERACTIONS; 2-PHOTON ABSORPTION; SOLAR-CELLS; MOLECULES;
OLIGOMERS; POLYMERS; TRANSISTORS; ENERGIES; EXCHANGE; MODELS
AB A series of PPVO (p-phenylene vinylene oligomer derivatives with functional groups of varying electronegativity were synthesized via the Horner-Wadsworth-Emmons reaction. Subtle, changes in the end group functionality significantly impact the molecular electronic and optical properties of the PPVOs, resulting in broadly tunable and efficient UV absorption and photoluminescence spectra. Of particular interest is the NO2-substituted PPVO which exhibits photoluminescence color ranging from the blue to the red, thus encompassing the entire visible spectrum. Our experimental study and electronic structure calculations suggest that the formation of aggregates and strong dipole dipole solute solvent interactions are responsible for the observed strong solvatochromism. Experimental and theoretical results for the NH2-, H-, and NO2-substituted PPVOs suggest that the stabilization of ground or excited state dipoles leads to the blue or red shift of the optical spectra. The electroluminescence (EL) spectra of H-, COOH-, and NO2-PPVO have maxima at 487, 518, and 587 nm, respectively, in the OLED device. This trend in the EL spectra is in excellent agreement with the end group-dependent PL spectra of the PPVO thin-films.
C1 [Park, Young Il; Kuo, Cheng-Yu; Park, Young-Shin; Wang, Hsing-Lin] Los Alamos Natl Lab, Div Chem, C PCS, Los Alamos, NM 87545 USA.
[Martinez, Jennifer S.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Postupna, Olena; Zhugayevych, Andriy; Tretiak, Sergei] Los Alamos Natl Lab, Div Theory, Los Alamos, NM 87545 USA.
[Kim, Seungho; Park, Jongwook] Catholic Univ Korea, Dept Chem, Display Res Ctr, Puchon 420743, South Korea.
RP Tretiak, S (reprint author), Los Alamos Natl Lab, Div Theory, POB 1663, Los Alamos, NM 87545 USA.
EM serg@lanl.gov; hwang@lanl.gov
RI Tretiak, Sergei/B-5556-2009;
OI Tretiak, Sergei/0000-0001-5547-3647; Park,
Young-Shin/0000-0003-4204-1305
FU Basic Energy Science (BES), Materials Sciences and Engineering Division,
Biomolecular Materials program, U.S. Department of Energy; Los Alamos
National Laboratory (LANL) Directed Research and Development Funds;
National Nuclear Security Administration of the U.S. Department of
Energy [DE-AC52-06NA25396]; Center for Integrated Nanotechnologies
(CINT), a DOE Nanoscience User Facility; Center for Nonlinear Studies
(CNLS)
FX We acknowledge support of the Basic Energy Science (BES), Materials
Sciences and Engineering Division, Biomolecular Materials program, U.S.
Department of Energy and Los Alamos National Laboratory (LANL) Directed
Research and Development Funds. Los Alamos National Laboratory is
operated by Los Alamos National Security, LLC, for the National Nuclear
Security Administration of the U.S. Department of Energy under contract
DE-AC52-06NA25396. We acknowledge support of the Center for Integrated
Nanotechnologies (CINT), a DOE Nanoscience User Facility, and the Center
for Nonlinear Studies (CNLS).
NR 41
TC 18
Z9 18
U1 2
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD JUN 12
PY 2013
VL 5
IS 11
BP 4685
EP 4695
DI 10.1021/am400766w
PG 11
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 165KY
UT WOS:000320484000030
PM 23607446
ER
PT J
AU DeCanio, MS
Landick, R
Haft, RJF
AF DeCanio, Mark S.
Landick, Robert
Haft, Rembrandt J. F.
TI The non-pathogenic Escherichia coli strain W secretes SslE via the
virulence-associated type II secretion system beta
SO BMC MICROBIOLOGY
LA English
DT Article
DE Type II secretion; Surface display; Escherichia coli; Colonization
factor
ID PROTEIN-SECRETION; GENOME SEQUENCE; PATHWAY; LOCUS; K-12
AB Background: Many pathogenic E. coli strains secrete virulence factors using type II secretory systems, homologs of which are widespread in Gram-negative bacteria. Recently, the enteropathogenic Escherichia coli strain E2348/69 was shown to secrete and surface-anchor SslE, a biofilm-promoting virulence factor, via a type II secretion system. Genes encoding SslE and its associated secretion system are conserved in some non-pathogenic E. coli, including the commonly-used W (Waksman) strain.
Results: We report here that E. coli W uses its type II secretion system to export a cognate SslE protein. SslE secretion is temperature-and nutrient-dependent, being robust at 37 degrees C in rich medium but strongly repressed by lower temperatures or nutrient limitation. Fusing either of two glycosyl hydrolases to the C-terminus of SslE prevented it from being secreted or surface-exposed. We screened mutations that inactivated the type II secretion system for stress-related phenotypes and found that inactivation of the secretion system conferred a modest increase in tolerance to high concentrations of urea. Additionally, we note that the genes encoding this secretion system are present at a hypervariable locus and have been independently lost or gained in different lineages of E. coli.
Conclusions: The non-pathogenic E. coli W strain shares the extracellular virulence factor SslE, and its associated secretory system, with pathogenic E. coli strains. The pattern of regulation of SslE secretion we observed suggests that SslE plays a role in colonization of mammalian hosts by non-pathogenic as well as pathogenic E. coli. Our work provides a non-pathogenic model system for the study of SslE secretion, and informs future research into the function of SslE during host colonization.
C1 [DeCanio, Mark S.; Landick, Robert; Haft, Rembrandt J. F.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53715 USA.
[DeCanio, Mark S.; Landick, Robert] Univ Wisconsin, Dept Biochem, Madison, WI 53705 USA.
[Landick, Robert] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA.
RP Haft, RJF (reprint author), Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53715 USA.
EM rhaft@wisc.edu
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science)
[DE-FC02-07ER64494]; Office of Science of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX We would like to thank David Keating for thoughtful discussions and
critical review of the manuscript. This work was funded by the DOE Great
Lakes Bioenergy Research Center (DOE BER Office of Science
DE-FC02-07ER64494). Sequencing of E. coli W by the U.S. Department of
Energy Joint Genome Institute is supported by the Office of Science of
the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
NR 28
TC 3
Z9 3
U1 1
U2 16
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2180
J9 BMC MICROBIOL
JI BMC Microbiol.
PD JUN 12
PY 2013
VL 13
AR 130
DI 10.1186/1471-2180-13-130
PG 9
WC Microbiology
SC Microbiology
GA 180CK
UT WOS:000321570300001
PM 23758679
ER
PT J
AU Gorlin, Y
Lassalle-Kaiser, B
Benck, JD
Gul, S
Webb, SM
Yachandra, VK
Yano, J
Jaramillo, TF
AF Gorlin, Yelena
Lassalle-Kaiser, Benedikt
Benck, Jesse D.
Gul, Sheraz
Webb, Samuel M.
Yachandra, Vittal K.
Yano, Junko
Jaramillo, Thomas F.
TI In Situ X-ray Absorption Spectroscopy Investigation of a Bifunctional
Manganese Oxide Catalyst with High Activity for Electrochemical Water
Oxidation and Oxygen Reduction
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID OCTAHEDRAL MOLECULAR-SIEVES; DIOXIDE ELECTRODE;
STRUCTURAL-CHARACTERIZATION; PHOTOELECTRON-SPECTROSCOPY; SUPERCAPACITOR
ELECTRODE; ALKALINE ELECTROLYTE; THIN-FILMS; BIRNESSITE; DIFFRACTION;
ELECTROCATALYSTS
AB In situ X-ray absorption spectroscopy (XAS) is a powerful technique that can be applied to electrochemical systems, with the ability to elucidate the chemical nature of electrocatalysts under reaction conditions. In this study, we perform in situ XAS measurements on a bifunctional manganese oxide (MnOx) catalyst with high electrochemical activity for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). Using X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), we find that exposure to an ORR-relevant potential of 0.7 V vs RHE produces a disordered (Mn3O4)-O-II,III,III phase with negligible contributions from other phases. After the potential is increased to a highly anodic value of 1.8 V vs RHE, relevant to the OER, we observe an oxidation of approximately 80% of the catalytic thin film to form a mixed Mn-III,Mn-IV oxide, while the remaining 20% of the film consists of a less oxidized phase, likely corresponding to unchanged (Mn3O4)-O-II,III,III. XAS and electrochemical characterization of two thin film catalysts with different MnOx thicknesses reveals no significant influence of thickness on the measured oxidation states, at either ORR or OER potentials, but demonstrates that the OER activity scales with film thickness. This result suggests that the films have porous structure, which does not restrict electrocatalysis to the top geometric layer of the film. As the portion of the catalyst film that is most likely to be oxidized at the high potentials necessary for the OER is that which is closest to the electrolyte interface, we hypothesize that the Mn-III,Mn-IV oxide, rather than (Mn3O4)-O-II,III,III,is the phase pertinent to the observed OER activity.
C1 [Gorlin, Yelena; Benck, Jesse D.; Jaramillo, Thomas F.] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA.
[Lassalle-Kaiser, Benedikt; Gul, Sheraz; Yachandra, Vittal K.; Yano, Junko] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Webb, Samuel M.] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
RP Yano, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM jyano@lbl.gov; jaramillo@stanford.edu
RI Jaramillo, Thomas/C-4174-2014; Webb, Samuel/D-4778-2009
OI Jaramillo, Thomas/0000-0001-9900-0622; Webb, Samuel/0000-0003-1188-0464
FU Center on Nanostructuring for Efficient Energy Conversion (CNEEC) at
Stanford University; Energy Frontier Research Center; U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-SC0001060]; Joint Center for Artificial Photosynthesis, a DOE Energy
Innovation Hub; Office of Science of the U.S. Department of Energy
[DE-SC0004993]; DOE Office of Biological and Environmental Research;
National Institutes of Health, National Institute of General Medical
Sciences [P41GM103393]; National Center for Research Resources
[P41RR001209]; [DE-AC02-05CH11231]
FX Catalyst development and electrochemical characterization were supported
as part of the Center on Nanostructuring for Efficient Energy Conversion
(CNEEC) at Stanford University, an Energy Frontier Research Center
funded by the U.S. Department of Energy, Office of Science, Office of
Basic Energy Sciences under Award Number DE-SC0001060. SEM, XPS, and XRD
were performed at the Stanford Nanocharacterization Laboratory (SNL)
part of the Stanford Nano Shared Facilities. In situ XAS experiments
were supported by the Joint Center for Artificial Photosynthesis, a DOE
Energy Innovation Hub, supported through the Office of Science of the
U.S. Department of Energy under Award Number DE-SC0004993, and performed
at the Advanced Light Source (BL 10.3.2), Berkeley, under Contract
DE-AC02-05CH11231. Portions of this research were carried out at the
Stanford Synchrotron Radiation Lightsource, a Directorate of SLAC
National Accelerator Laboratory and an Office of Science User Facility
operated for the U.S. Department of Energy Office of Science by Stanford
University. The SSRL Structural Molecular Biology Program is supported
by the DOE Office of Biological and Environmental Research, and by the
National Institutes of Health, National Institute of General Medical
Sciences (including P41GM103393), and the National Center for Research
Resources (P41RR001209). The authors thank Dr. Sung-Hyeon Baeck for
providing beta-MnO2 and alpha-Mn2O3
powders and Dr. Jakob Kibsgaard for assistance with Figure 9.
NR 57
TC 150
Z9 151
U1 58
U2 552
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 12
PY 2013
VL 135
IS 23
BP 8525
EP 8534
DI 10.1021/ja3104632
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 165KX
UT WOS:000320483900022
PM 23758050
ER
PT J
AU Zhang, GQ
Vasudevan, KV
Scott, BL
Hanson, SK
AF Zhang, Guoqi
Vasudevan, Kalyan V.
Scott, Brian L.
Hanson, Susan K.
TI Understanding the Mechanisms of Cobalt-Catalyzed Hydrogenation and
Dehydrogenation Reactions
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID ASYMMETRIC TRANSFER HYDROGENATION; ENANTIOSELECTIVE KETONE
HYDROGENATION; LIGAND BIFUNCTIONAL ADDITION; C-H ACTIVATION; RUTHENIUM
COMPLEXES; ACCEPTORLESS DEHYDROGENATION; EFFICIENT HYDROGENATION;
ALCOHOL DEHYDROGENATION; POLYMERIZATION ACTIVITY; NONCOORDINATING ANIONS
AB Cobalt(II) alkyl complexes of aliphatic PNP pincer ligands have been synthesized and characterized. The cationic cobalt(II) alkyl complex [(PNHPCy)Co(CH2SiMe3)]BAr4F (4) (PNHPCy = bis[(2-dicyclohexylphosphino)ethyl]amine) is an active precatalyst for the hydrogenation of olefins and ketones and the acceptorless dehydrogenation of alcohols. To elucidate the possible involvement of the N-H group on the pincer ligand in the catalysis via a metal-ligand cooperative interaction, the reactivities of 4 and [(PNMePCy)Co(CH2SiMe3)]BAr4F (7) were compared. Complex 7 was found to be an active precatalyst for the hydrogenation of olefins. In contrast, no catalytic activity was observed using 7 as a precatalyst for the hydrogenation of acetophenone under mild conditions. For the acceptorless dehydrogenation of 1-phenylethanol, complex 7 displayed similar activity to complex 4, affording acetophenone in high yield. When the acceptorless dehydrogenation of 1-phenylethanol with precatalyst 4 was monitored by NMR spectroscopy, the formation of the cobalt(III) acetylphenyl hydride complex [(PNHPCy)Co-III(kappa 2-O,C-C6H4C(O)CH3)(H)]BAr4F (13) was detected. Isolated complex 13 was found to be an effective catalyst for the acceptorless dehydrogenation of alcohols, implicating 13 as a catalyst resting state during the alcohol dehydrogenation reaction. Complex 13 catalyzed the hydrogenation of styrene but showed no catalytic activity for the room temperature hydrogenation of acetophenone. These results support the involvement of metal-ligand cooperativity in the room temperature hydrogenation of ketones but not the hydrogenation of olefins or the acceptorless dehydrogenation of alcohols. Mechanisms consistent with these observations are presented for the cobalt catalyzed hydrogenation of olefins and ketones and the acceptorless dehydrogenation of alcohols.
C1 [Hanson, Susan K.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
Los Alamos Natl Lab, Div Mat Phys Applicat, Los Alamos, NM 87545 USA.
RP Hanson, SK (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
EM skhanson@lanl.gov
RI Scott, Brian/D-8995-2017
OI Scott, Brian/0000-0003-0468-5396
FU Los Alamos National Laboratory LDRD Early Career Award [20110537ER];
Director's Post-Doctoral Fellowship
FX This work was funded by Los Alamos National Laboratory LDRD Early Career
Award (20110537ER) and Director's Post-Doctoral Fellowship (G.Z.).
NR 90
TC 92
Z9 92
U1 15
U2 307
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 12
PY 2013
VL 135
IS 23
BP 8668
EP 8681
DI 10.1021/ja402679a
PG 14
WC Chemistry, Multidisciplinary
SC Chemistry
GA 165KX
UT WOS:000320483900038
PM 23713752
ER
PT J
AU Akimov, AV
Muckerman, JT
Prezhdo, OV
AF Akimov, Alexey V.
Muckerman, James T.
Prezhdo, Oleg V.
TI Nonadiabatic Dynamics of Positive Charge during Photocatalytic Water
Splitting on GaN(10-10) Surface: Charge Localization Governs Splitting
Efficiency
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID DOMAIN AB-INITIO; MOLECULAR-DYNAMICS; VISIBLE-LIGHT;
HYDROGEN-PRODUCTION; TITANIUM-DIOXIDE; ELECTRONIC-TRANSITIONS;
COMPUTATIONAL MODEL; PROTON-TRANSFER; OXIDE SURFACES; SOLID-SOLUTION
AB Photochemical water splitting is a promising avenue to sustainable, clean energy and fuel production Gallium nitride (GaN) and its solid solutions are excellent photocatalytic materials; however, the efficiency of the process is low on pure GaN, and cocatalysts are required to increase the yields. We present the first tune domain theoretical study of the initial steps of photocatalytic water splitting on a GaN surface. Our state-of-the-art simulation technique, combining nonadiabatic molecular dynamics and time dependent density functional theory, allows us to characterize the mechanisms and time scales of the evolution of the photogenerated positive charge (hole) and the subsequent proton transfer at the GaN/water interface. The calculations show that the hole loses its excess energy within 100 fs and localizes primarily on the nitrogen atoms of the GaN surface, initiating a sequence of proton-transfer events from the surface N-H group to the nearby OH groups and bulk water molecules. Water splitting requires hole localization on oxygen rather than nitrogen, necessitating nonadiabatic transitions uphill in energy on pure GaN. Such transitions happen rarely, resulting in low yields of the photocatalytic water splitting observed experimentally. We conclude that efficient cocatalysts should favor localization of the photogenerated hole on oxygen containing species at the semiconductor/water interface.
C1 [Akimov, Alexey V.; Prezhdo, Oleg V.] Univ Rochester, Dept Chem, Rochester, NY 14627 USA.
[Akimov, Alexey V.; Muckerman, James T.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Prezhdo, OV (reprint author), Univ Rochester, Dept Chem, Rochester, NY 14627 USA.
EM oleg.prezhdo@rochester.edu
RI Akimov, Alexey/H-9547-2014
FU Computational Materials and Chemical Sciences Network (CMCSN) project at
Brookhaven National Laboratory; U.S. Department of Energy
[DE-AC02-98CH10886, DE-SC0006527]; Division of Chemical Sciences,
Geosciences & Biosciences, Office of Basic Energy Sciences
FX Authors thank the members of the Solar Water Splitting Simulation Team
(SWaSSiT) group for useful discussions and comments on the work. A.V.A.
was funded by the Computational Materials and Chemical Sciences Network
(CMCSN) project at Brookhaven National Laboratory under contract
DE-AC02-98CH10886 with the U.S. Department of Energy and supported by
its Division of Chemical Sciences, Geosciences & Biosciences, Office of
Basic Energy Sciences. O.V.P. acknowledges financial support of the U.S.
Department of Energy, grant DE-SC0006527.
NR 89
TC 35
Z9 35
U1 8
U2 151
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD JUN 12
PY 2013
VL 135
IS 23
BP 8682
EP 8691
DI 10.1021/ja4029395
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 165KX
UT WOS:000320483900039
PM 23679683
ER
PT J
AU Swingle, B
McMinis, J
Tubman, NM
AF Swingle, Brian
McMinis, Jeremy
Tubman, Norm M.
TI Oscillating terms in the Renyi entropy of Fermi gases and liquids
SO PHYSICAL REVIEW B
LA English
DT Article
ID ENTANGLEMENT ENTROPY
AB In this work we compute subleading oscillating terms in the Renyi entropy of Fermi gases and liquids corresponding to 2k(F) - like oscillations. Our theoretical tools are the one-dimensional formulation of Fermi liquid entanglement familiar from discussions of the logarithmic violation of the area law and quantum Monte Carlo calculations. The main result is a formula for the oscillating term for any region geometry and a spherical Fermi surface in any dimension. Specializing to two dimensions, we compare this term to numerical calculations of Renyi entropies using the correlation function method and find excellent agreement. We also compare with quantum Monte Carlo data on interacting Fermi liquids where we also find agreement up to moderate interaction strengths.
C1 [Swingle, Brian] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
[McMinis, Jeremy; Tubman, Norm M.] Univ Illinois, Dept Phys, Urbana, IL 61820 USA.
[McMinis, Jeremy] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Swingle, B (reprint author), Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
FU National Science Foundation [OCI-0904572, OCI-1053575]; US Department of
Energy (DOE) [DE-AC52-07NA27344, LLNL-JRNL635484]; Simons Fellowship
through Harvard University
FX B. M. and N.M.T. were supported by the National Science Foundation under
Grant No. OCI-0904572. This work was performed in part by J.B.M. under
the auspices of the US Department of Energy (DOE) by LLNL under Contract
No. DE-AC52-07NA27344, document number LLNL-JRNL635484. B.G.S. is
supported by a Simons Fellowship through Harvard University. This work
used the Extreme Science and Engineering Discovery Environment (XSEDE),
which is supported by National Science Foundation Grant No. OCI-1053575.
NR 42
TC 10
Z9 10
U1 1
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 12
PY 2013
VL 87
IS 23
AR UNSP 235112
DI 10.1103/PhysRevB.87.235112
PG 10
WC Physics, Condensed Matter
SC Physics
GA 162PZ
UT WOS:000320278800001
ER
PT J
AU Moeller, SJ
Parvaz, MA
Shumay, E
Beebe-Wang, N
Konova, AB
Alia-Klein, N
Volkow, ND
Goldstein, RZ
AF Moeller, Scott J.
Parvaz, Muhammad A.
Shumay, Elena
Beebe-Wang, Nicasia
Konova, Anna B.
Alia-Klein, Nelly
Volkow, Nora D.
Goldstein, Rita Z.
TI Gene X Abstinence Effects on Drug Cue Reactivity in Addiction:
Multimodal Evidence
SO JOURNAL OF NEUROSCIENCE
LA English
DT Article
ID DOPAMINE TRANSPORTER GENE; EXON-III POLYMORPHISM; COCAINE ADDICTION;
NOVELTY SEEKING; ALCOHOL DEPENDENCE; REWARD; ASSOCIATION; SMOKING;
SENSITIVITY; SEVERITY
AB Functional polymorphisms in the dopamine transporter gene (DAT1 or SLC6A3) modulate responsiveness to salient stimuli, such that carriers of one 9R-allele of DAT1 (compared with homozygote carriers of the 10R-allele) show heightened reactivity to drug-related reinforcement in addiction. Here, using multimodal neuroimaging and behavioral dependent variables in 73 human cocaine-addicted individuals and 47 healthy controls, we hypothesized and found that cocaine-addicted carriers of a 9R-allele exhibited higher responses to drug cues, but only among individuals who had used cocaine within 72 h of the study as verified by positive cocaine urine screens (a state characterized by intense craving). Importantly, this responsiveness to drug cues was reliably preserved across multimodal imaging and behavioral probes: psychophysiological event-related potentials, self-report, simulated cocaine choice, and fMRI. Because drug cues contribute to relapse, our results identify the DAT1R 9R-allele as a vulnerability allele for relapse especially during early abstinence (e.g., detoxification).
C1 [Moeller, Scott J.; Parvaz, Muhammad A.; Beebe-Wang, Nicasia; Konova, Anna B.; Alia-Klein, Nelly; Goldstein, Rita Z.] Icahn Sch Med Mt Sinai, Dept Psychiat, New York, NY 10029 USA.
[Moeller, Scott J.; Parvaz, Muhammad A.; Beebe-Wang, Nicasia; Konova, Anna B.; Alia-Klein, Nelly; Goldstein, Rita Z.] Icahn Sch Med Mt Sinai, Dept Neurosci, New York, NY 10029 USA.
[Shumay, Elena] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
[Konova, Anna B.] SUNY Stony Brook, Dept Psychol, Stony Brook, NY 11794 USA.
[Volkow, Nora D.] NIDA, Bethesda, MD 20892 USA.
[Volkow, Nora D.] NIAAA, Bethesda, MD 20892 USA.
RP Goldstein, RZ (reprint author), 1 Gustave L Levy Pl,Box 1230, New York, NY 10029 USA.
EM rita.goldstein@mssm.edu
RI Moeller, Scott/L-5549-2016
OI Moeller, Scott/0000-0002-4449-0844
FU National Institute on Drug Abuse [1R01DA023579, 1F32DA030017-01,
1F32DA033088]
FX This work was supported by National Institute on Drug Abuse Grant
1R01DA023579 to R.Z.G., Grant 1F32DA030017-01 to S.J.M., and Grant
1F32DA033088 to M.A.P. We thank Michail Misyrlis, Thomas Maloney,
Patricia A. Woicik, Dardo Tomasi, Ruiliang Wang, and Gene-Jack Wang for
assistance.
NR 68
TC 13
Z9 14
U1 0
U2 8
PU SOC NEUROSCIENCE
PI WASHINGTON
PA 11 DUPONT CIRCLE, NW, STE 500, WASHINGTON, DC 20036 USA
SN 0270-6474
J9 J NEUROSCI
JI J. Neurosci.
PD JUN 12
PY 2013
VL 33
IS 24
BP 10027
EP 10036
DI 10.1523/JNEUROSCI.0695-13.2013
PG 10
WC Neurosciences
SC Neurosciences & Neurology
GA 162AB
UT WOS:000320235300018
PM 23761898
ER
PT J
AU Christianson, AD
Lumsden, MD
Marty, K
Wang, CH
Calder, S
Abernathy, DL
Stone, MB
Mook, HA
McGuire, MA
Sefat, AS
Sales, BC
Mandrus, D
Goremychkin, EA
AF Christianson, A. D.
Lumsden, M. D.
Marty, K.
Wang, C. H.
Calder, S.
Abernathy, D. L.
Stone, M. B.
Mook, H. A.
McGuire, M. A.
Sefat, A. S.
Sales, B. C.
Mandrus, D.
Goremychkin, E. A.
TI Doping dependence of the spin excitations in the Fe-based
superconductors Fe1+yTe1-xSex
SO PHYSICAL REVIEW B
LA English
DT Article
AB The Fe1+yTe1-xSex series of materials is one of the prototype families of Fe-based superconductors. To provide further insight into these materials, we present systematic inelastic neutron scattering measurements of the low-energy spin excitations for x = 0.27, 0.36, 0.40, and 0.49. These measurements show an evolution of incommensurate spin excitations towards the (1/2,1/2,0) wave vector with doping. Concentrations (x = 0.40 and 0.49) which exhibit the most robust superconducting properties have spin excitations closest to (1/2,1/2,0) and also exhibit a strong spin resonance in the spin excitation spectrum below T-c. The resonance signal appears to be closer to (1/2,1/2,0) than the underlying spin excitations. We discuss the possible relationship between superconductivity and spin excitations at the (1/2,1/2,0) wave vector and the role that interstitial Fe may play.
C1 [Christianson, A. D.; Lumsden, M. D.; Marty, K.; Wang, C. H.; Calder, S.; Abernathy, D. L.; Stone, M. B.; Mook, H. A.; McGuire, M. A.; Sefat, A. S.; Sales, B. C.; Mandrus, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Mandrus, D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Goremychkin, E. A.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Goremychkin, E. A.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 OQX, Oxon, England.
RP Christianson, AD (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI McGuire, Michael/B-5453-2009; Stone, Matthew/G-3275-2011; Abernathy,
Douglas/A-3038-2012; Mandrus, David/H-3090-2014; christianson,
andrew/A-3277-2016; BL18, ARCS/A-3000-2012; Sefat, Athena/R-5457-2016;
Lumsden, Mark/F-5366-2012;
OI McGuire, Michael/0000-0003-1762-9406; Stone,
Matthew/0000-0001-7884-9715; Abernathy, Douglas/0000-0002-3533-003X;
christianson, andrew/0000-0003-3369-5884; Sefat,
Athena/0000-0002-5596-3504; Lumsden, Mark/0000-0002-5472-9660; Calder,
Stuart/0000-0001-8402-3741
FU Scientific User Facilities Division; Materials Sciences and Engineering
Division, Office of Basic Energy Sciences, US DOE
FX We acknowledge useful discussions with T. A. Maier. Research at ORNL is
sponsored by the Scientific User Facilities Division and the Materials
Sciences and Engineering Division, Office of Basic Energy Sciences, US
DOE.
NR 39
TC 7
Z9 7
U1 3
U2 27
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 12
PY 2013
VL 87
IS 22
AR 224410
DI 10.1103/PhysRevB.87.224410
PG 7
WC Physics, Condensed Matter
SC Physics
GA 162PV
UT WOS:000320278400003
ER
PT J
AU Ghannadzadeh, S
Moller, JS
Goddard, PA
Lancaster, T
Xiao, F
Blundell, SJ
Maisuradze, A
Khasanov, R
Manson, JL
Tozer, SW
Graf, D
Schlueter, JA
AF Ghannadzadeh, S.
Moeller, J. S.
Goddard, P. A.
Lancaster, T.
Xiao, F.
Blundell, S. J.
Maisuradze, A.
Khasanov, R.
Manson, J. L.
Tozer, S. W.
Graf, D.
Schlueter, J. A.
TI Evolution of magnetic interactions in a pressure-induced Jahn-Teller
driven magnetic dimensionality switch
SO PHYSICAL REVIEW B
LA English
DT Article
AB We present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF2(H2O)(2)(pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensional antiferromagnetic phase at 9.1 kbar, driven by a rotation of the Jahn-Teller axis. Long-range antiferromagnetic ordering is seen in both regimes, as well as a phase separation in the critical pressure region. The magnetic dimensionality switching as pressure is increased is accompanied by a halving of the primary magnetic exchange energy J and a fivefold decrease in the ordering temperature T-N. J decreases gradually with pressure in the two-dimensional phase, and then increases in the one-dimensional regime. We relate both effects to the changes in the crystal structure with applied pressure.
C1 [Ghannadzadeh, S.; Moeller, J. S.; Goddard, P. A.; Blundell, S. J.] Univ Oxford, Clarendon Lab, Dept Phys, Oxford OX1 3PU, England.
[Lancaster, T.; Xiao, F.] Univ Durham, Dept Phys, Durham DH1 3LE, England.
[Maisuradze, A.; Khasanov, R.] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland.
[Manson, J. L.] Eastern Washington Univ, Dept Chem & Biochem, Cheney, WA 99004 USA.
[Tozer, S. W.; Graf, D.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Schlueter, J. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Ghannadzadeh, S (reprint author), Univ Oxford, Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England.
EM s.ghannadzadeh1@physics.ox.ac.uk; j.moeller1@physics.ox.ac.uk
RI Goddard, Paul/A-8638-2015;
OI Goddard, Paul/0000-0002-0666-5236; Khasanov, Rustem/0000-0002-4768-5524
FU EPSRC (U.K.); NSF [DMR-0654118, DMR-1005825]; DOE; Argonne; DOE Office
of Science laboratory [DE-AC02-06CH11357]; DOE/NNSA Grant
[DE-FG52-10NA29659]; State of Florida
FX This work is supported by EPSRC (U.K.). A portion of this work was
performed at the National High Magnetic Field Laboratory, which is
supported by NSF Cooperative Agreement No. DMR-0654118, the State of
Florida, and the DOE. The muon experiment was performed on the GPD
instrument at the Swiss Muon Source, Paul Scherrer Institut,
Switzerland. Work supported by Argonne, a DOE Office of Science
laboratory, operated under Contract No. DE-AC02-06CH11357. D.G. and
S.W.T. are supported by DOE/NNSA Grant No. DE-FG52-10NA29659. The work
at EWU was supported by NSF Grant No. DMR-1005825.
NR 21
TC 12
Z9 12
U1 2
U2 32
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 12
PY 2013
VL 87
IS 24
AR UNSP 241102
DI 10.1103/PhysRevB.87.241102
PG 5
WC Physics, Condensed Matter
SC Physics
GA 162QC
UT WOS:000320279100001
ER
PT J
AU Ma, J
Wei, SH
AF Ma, Jie
Wei, Su-Huai
TI Bowing of the defect formation energy in semiconductor alloys
SO PHYSICAL REVIEW B
LA English
DT Article
ID STABILITY; EPITAXY; GAASN
AB Using the first-principles method and special quasirandom structure approach, we have studied the formation energies of two prototype defects in alloys, Ge-As in AlxGa1-xAs and Cu-Cd in CdSxTe1-x. We find that giant bowing effects for the defect formation energy can exist in semiconductor alloys. The bowing effect originates from the concentrated distribution of defects at low energy sites caused by the defect wave-function localization and the size-mismatch-induced strain effect. Because the bowing effect can drastically reduce the defect formation energy-even in dilute semiconductor alloys-it can have wide applications, such as alloy-enhanced defect solubility in semiconductors.
C1 [Ma, Jie; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Ma, J (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM swei@nrel.gov
FU U.S. DOE [DE-AC36-08GO28308]
FX This work was supported by the U.S. DOE under Contract No.
DE-AC36-08GO28308.
NR 26
TC 2
Z9 2
U1 2
U2 29
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 12
PY 2013
VL 87
IS 24
AR 241201
DI 10.1103/PhysRevB.87.241201
PG 5
WC Physics, Condensed Matter
SC Physics
GA 162QC
UT WOS:000320279100002
ER
PT J
AU Rorai, C
Rosenberg, D
Pouquet, A
Mininni, PD
AF Rorai, C.
Rosenberg, D.
Pouquet, A.
Mininni, P. D.
TI Helicity dynamics in stratified turbulence in the absence of forcing
SO PHYSICAL REVIEW E
LA English
DT Article
ID DIRECT NUMERICAL SIMULATIONS; INTERNAL GRAVITY-WAVES;
MAGNETOHYDRODYNAMIC TURBULENCE; LIMITING DYNAMICS; ENERGY-SPECTRA;
FROUDE-NUMBER; FLOW; SCALE; ROTATION
AB A numerical study of decaying stably stratified flows is performed. Relatively high stratification (Froude number approximate to 10(-2)-10(-1)) and moderate Reynolds (Re) numbers (Re approximate to 3(-6) x 10(3)) are considered and a particular emphasis is placed on the role of helicity (velocity-vorticity correlations), which is not an invariant of the nondissipative equations. The problem is tackled by integrating the Boussinesq equations in a periodic cubical domain using different initial conditions: a nonhelical Taylor-Green (TG) flow, a fully helical Beltrami [Arnold-Beltrami-Childress (ABC)] flow, and random flows with a tunable helicity. We show that for stratified ABC flows helicity undergoes a substantially slower decay than for unstratified ABC flows. This fact is likely associated to the combined effect of stratification and large-scale coherent structures. Indeed, when the latter are missing, as in random flows, helicity is rapidly destroyed by the onset of gravitational waves. A type of large-scale dissipative "cyclostrophic" balance can be invoked to explain this behavior. No production of helicity is observed, contrary to the case of rotating and stratified flows. When helicity survives in the system, it strongly affects the temporal energy decay and the energy distribution among Fourier modes. We discover in fact that the decay rate of energy for stratified helical flows is much slower than for stratified nonhelical flows and can be considered with a phenomenological model in a way similar to what is done for unstratified rotating flows. We also show that helicity, when strong, has a measurable effect on the Fourier spectra, in particular at scales larger than the buoyancy scale, for which it displays a rather flat scaling associated with vertical shear, as observed in the planetary boundary layer.
C1 [Rorai, C.; Pouquet, A.; Mininni, P. D.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Rorai, C.] Abdus Salaam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
[Rosenberg, D.] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN 37831 USA.
[Pouquet, A.] CU, Dept Appl Math, Boulder, CO 80309 USA.
[Mininni, P. D.] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina.
[Mininni, P. D.] Consejo Nacl Invest Cient & Tecn, IFIBA, RA-1428 Buenos Aires, DF, Argentina.
RP Rorai, C (reprint author), Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA.
OI Mininni, Pablo/0000-0001-6858-6755; Rorai, Cecilia/0000-0002-6309-4652
FU NSF/CMG Grant [1025183]; National Center for Atmospheric Research
(NCAR); University of Colorado and NSF sponsorship of NCAR
FX This work is supported by NSF/CMG Grant No. 1025183. This work was also
sponsored by an NSF cooperative agreement through the University
Corporation for Atmospheric Research on behalf of the National Center
for Atmospheric Research (NCAR). Computer time was provided by NSF under
sponsorship of NCAR. Additional computational resources were provided by
NSF-MRI Grant No. CNS-0821794, MRI-Consortium: Acquisition of a
Supercomputer by the Front Range Computing Consortium (FRCC), with
additional support from the University of Colorado and NSF sponsorship
of NCAR. C.R. was supported by a graduate research grant from the
Advanced Study Program at NCAR and from a RSVP/CISL grant at NCAR.
NR 59
TC 10
Z9 10
U1 0
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0045
EI 2470-0053
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 12
PY 2013
VL 87
IS 6
AR UNSP 063007
DI 10.1103/PhysRevE.87.063007
PG 13
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 162QS
UT WOS:000320280900008
PM 23848772
ER
PT J
AU Vadivel, K
Agah, S
Messer, AS
Cascio, D
Bajaj, MS
Krishnaswamy, S
Esmon, CT
Padmanabhan, K
Bajaj, P
AF Vadivel, Kanagasabai
Agah, Sayeh
Messer, Amanda S.
Cascio, Duilio
Bajaj, Madhu S.
Krishnaswamy, Sriram
Esmon, Charles T.
Padmanabhan, Kaillathe
Bajaj, Paul
TI Structural and Functional Studies of gamma-Carboxyglutamic Acid Domains
of Factor Vila and Activated Protein C: Role of Magnesium at
Physiological Calcium
SO JOURNAL OF MOLECULAR BIOLOGY
LA English
DT Article
DE gamma-carboxyglutamic acid domains; Ca2+and Mg2+sites; surface plasmon
resonance; factor Vila; activated Protein C
ID BLOOD-COAGULATION FACTOR; K-DEPENDENT PROTEINS; SURFACE-PLASMON
RESONANCE; FACTOR PATHWAY INHIBITOR; SOLUBLE TISSUE FACTOR; FACTOR-IX;
FACTOR-X; GLA-DOMAIN; CRYSTAL-STRUCTURE; MEMBRANE-BINDING
AB Crystal structures of factor (F) VIIa/soluble tissue factor (TF), obtained under high Mg2+ (50 mM Mg2+/5 mM Ca2+), have three of seven Ca2+ sites in the gamma-carboxyglutamic acid (Gla) domain replaced by Mg2+ at positions 1, 4, and 7. We now report structures under low Mg2+ (2.5 mM Mg2+/5 mM Ca2+) as well as under high Ca2+ (5 mM Mg2+/45 mM Ca2+). Under low Mg2+, four Ca2+ and three Mg2+ occupy the same positions as in high-Mg2+ structures. Conversely, under low Mg2+, reexamination of the structure of Gla domain of activated Protein C (APC) complexed with soluble endothelial Protein C receptor (sEPCR) has position 4 occupied by Ca2+ and positions 1 and 7 by Mg2+. Nonetheless, in direct binding experiments, Mg2+ replaced three Ca2+ sites in the unliganded Protein C or APC. Further, the hiah-Ca2+ condition was necessary to replace Mg4 in the FVIIa/soluble TF structure. In biological studies, Mg enhanced phospholipid binding to FVIIa and APC at physiological Ca2+. Additionally, Mg2+ potentiated phospholipid-dependent activations of FIX and FX by FVIIa/TF and inactivation of activated factor V by APC. Since APC and FVIIa bind to sEPCR involving similar interactions, we conclude that under the low-Mg2+ condition, sEPCR binding to APC-Gla (or FVIIa-Gla) replaces Mg4 by Ca4 with an attendant conformational change in the Gla domain omega-loop. Moreover, since phospholipid and sEPCR bind to FVIIa or APC via the w-loop, we predict that phospholipid binding also induces the functional Ca4 conformation in this loop. Cumulatively, the data illustrate that Mg2+ and Ca2+ act in concert to promote coagulation and anticoagulation. (C) 2013 Published by Elsevier Ltd.
C1 [Vadivel, Kanagasabai; Agah, Sayeh; Messer, Amanda S.; Bajaj, Paul] Univ Calif Los Angeles, UCLA Orthopaed Hosp, Dept Orthopaed Surg, Los Angeles, CA 90095 USA.
[Cascio, Duilio] UCLA DOE Inst Genom & Prote, Los Angeles, CA 90095 USA.
[Bajaj, Madhu S.] Univ Calif Los Angeles, Dept Med, Div Pulmonol & Crit Care, Los Angeles, CA 90095 USA.
[Krishnaswamy, Sriram] Childrens Hosp Philadelphia, Div Hematol, Philadelphia, PA 19104 USA.
[Esmon, Charles T.] Howard Hughes Med Inst, Oklahoma Med Res Fdn, Oklahoma City, OK 73104 USA.
[Padmanabhan, Kaillathe] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA.
[Bajaj, Paul] Univ Calif Los Angeles, Inst Mol Biol, Los Angeles, CA 90095 USA.
RP Bajaj, P (reprint author), Univ Calif Los Angeles, UCLA Orthopaed Hosp, Dept Orthopaed Surg, Los Angeles, CA 90095 USA.
EM pbajaj@mednet.ucla.edu
FU National Institutes of Health [RO1HL36365, R21HL89661]; [1S10RR26571]
FX This work was supported in part by National Institutes of Health grants
RO1HL36365 and R21HL89661. X-ray Structural Facility at UCLA, in part,
is supported by Grant 1S10RR26571.
NR 75
TC 9
Z9 9
U1 0
U2 12
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-2836
J9 J MOL BIOL
JI J. Mol. Biol.
PD JUN 12
PY 2013
VL 425
IS 11
BP 1961
EP 1981
DI 10.1016/j.jmb.2013.02.017
PG 21
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 164OL
UT WOS:000320419300009
PM 23454357
ER
PT J
AU Ophus, C
Santala, MK
Asta, M
Radmilovic, V
AF Ophus, Colin
Santala, Melissa K.
Asta, Mark
Radmilovic, Velimir
TI Structure and phase transitions at the interface between alpha-Al2O3 and
Pt
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID AUGMENTED-WAVE METHOD; SAPPHIRE; CATALYSTS; PLATINUM; ADHESION; OXYGEN;
OXIDE
AB The structure and thermodynamics of interfaces between (111) Pt and the basal plane of alpha-Al2O3 have been studied through a combination of high-resolution electron microscopy and first-principles calculations. Within the framework of ab initio thermodynamics the structure and excess free energies are calculated as functions of temperature (T) and oxygen partial pressure (P-O2), for three competing interface terminations. Comparisons between measurements and calculations establish that the interface is oxygen terminated, and a structural phase transition is predicted in the range of experimentally accessible T and P-O2 from the calculated interfacial free energies.
C1 [Ophus, Colin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Elect Microscopy, Berkeley, CA 94720 USA.
[Santala, Melissa K.] Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Livermore, CA USA.
[Asta, Mark] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Radmilovic, Velimir] Univ Belgrade, Fac Technol & Met, Nanotechnol & Funct Mat Ctr, Belgrade 11000, Serbia.
RP Ophus, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Elect Microscopy, Berkeley, CA 94720 USA.
EM cophus@gmail.com; santala1@llnl.gov
RI Santala, Melissa/K-6871-2013; Foundry, Molecular/G-9968-2014;
OI Santala, Melissa/0000-0002-5189-5153; Ophus, Colin/0000-0003-2348-8558
FU Office of Basic Energy Sciences, Materials Sciences and Engineering
Division of the US Department of Energy [DE-AC02-05CH11231]; Ministry of
Education and Science of the Republic of Serbia [172054]; Nanotechnology
and Functional Materials Center; EC FP7 project [245916]; National
Sciences and Engineering Council of Canada; US Department of Energy by
Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX All TEM has been performed at the National Center for Electron
Microscopy, LBNL, Berkeley, supported by the Director, Office of Basic
Energy Sciences, Materials Sciences and Engineering Division of the US
Department of Energy under Contract No. DE-AC02-05CH11231. VR
acknowledges support by the Ministry of Education and Science of the
Republic of Serbia, under project No. 172054 and Nanotechnology and
Functional Materials Center, funded by the EC FP7 project No. 245916. CO
acknowledges the financial support of the National Sciences and
Engineering Council of Canada. Portions of the work by MKS were
performed under the auspices of the US Department of Energy by Lawrence
Livermore National Laboratory under Contract DE-AC52-07NA27344. We also
thank Raquel Giulian (Universidade Federal do Rio Grande do Sul) and
Mark C Ridgway (Australian National University) for the ion implantation
and Rutherford backscatter spectroscopy characterization of our
specimens.
NR 32
TC 5
Z9 5
U1 0
U2 57
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD JUN 12
PY 2013
VL 25
IS 23
AR 232202
DI 10.1088/0953-8984/25/23/232202
PG 6
WC Physics, Condensed Matter
SC Physics
GA 154KI
UT WOS:000319673700002
PM 23696247
ER
PT J
AU Skerry, C
Pokkali, S
Pinn, M
Be, NA
Harper, J
Karakousis, PC
Jain, SK
AF Skerry, Ciaran
Pokkali, Supriya
Pinn, Michael
Be, Nicholas A.
Harper, Jamie
Karakousis, Petros C.
Jain, Sanjay K.
TI Vaccination with Recombinant Mycobacterium tuberculosis PknD Attenuates
Bacterial Dissemination to the Brain in Guinea Pigs
SO PLOS ONE
LA English
DT Article
ID HUMAN-IMMUNODEFICIENCY-VIRUS; CENTRAL-NERVOUS-SYSTEM; BCG VACCINATION;
IMMUNE-RESPONSE; CHILDHOOD TUBERCULOSIS; AEROSOL CHALLENGE;
PROTEIN-KINASE; MURINE MODEL; MENINGITIS; PATHOGENESIS
AB Background: We have previously identified Mycobacterium tuberculosis PknD to be an important virulence factor required for the pathogenesis of central nervous system (CNS) tuberculosis (TB). Specifically, PknD mediates bacillary invasion of the blood-brain barrier, which can be neutralized by specific antisera, suggesting its potential role as a therapeutic target against TB meningitis.
Methodology/Principal Findings: We utilized an aerosol challenge guinea pig model of CNS TB and compared the protective efficacy of recombinant M. tuberculosis PknD subunit protein with that of M. bovis BCG against bacillary dissemination to the brain. BCG vaccination limited the pulmonary bacillary burden after aerosol challenge with virulent M. tuberculosis in guinea pigs and also reduced bacillary dissemination to the brain (P = 0.01). PknD vaccination also offered significant protection against bacterial dissemination to the brain, which was no different from BCG (P > 0.24), even though PknD vaccinated animals had almost 100-fold higher pulmonary bacterial burdens. Higher levels of PknD-specific IgG were noted in animals immunized with PknD, but not in BCG-vaccinated or control animals. Furthermore, pre-incubation of M. tuberculosis with sera from PknD-vaccinated animals, but not with sera from BCG-vaccinated or control animals, significantly reduced bacterial invasion in a human blood-brain barrier model (P < 0.01).
Conclusion: Current recommendations for administering BCG at birth are based on protection gained against severe disease, such as TB meningitis, during infancy. We demonstrate that vaccination with recombinant M. tuberculosis PknD subunit offers a novel strategy to protect against TB meningitis, which is equivalent to BCG in a guinea pig model. Moreover, since BCG lacks the PknD sensor, BCG could also be boosted to develop a more effective vaccine against TB meningitis, a devastating disease that disproportionately affects young children.
C1 [Skerry, Ciaran; Pokkali, Supriya; Pinn, Michael; Be, Nicholas A.; Harper, Jamie; Karakousis, Petros C.; Jain, Sanjay K.] Johns Hopkins Univ, Sch Med, Ctr TB Res, Baltimore, MD 21218 USA.
[Skerry, Ciaran; Pokkali, Supriya; Be, Nicholas A.; Harper, Jamie; Jain, Sanjay K.] Johns Hopkins Univ, Sch Med, Dept Pediat, Baltimore, MD 21205 USA.
[Pinn, Michael; Karakousis, Petros C.] Johns Hopkins Univ, Sch Med, Dept Med, Baltimore, MD 21205 USA.
[Be, Nicholas A.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA.
[Harper, Jamie; Jain, Sanjay K.] Johns Hopkins Univ, Sch Med, Ctr Infect & Inflammat Imaging Res, Baltimore, MD USA.
RP Jain, SK (reprint author), Johns Hopkins Univ, Sch Med, Ctr TB Res, Baltimore, MD 21218 USA.
EM sjain5@jhmi.edu
RI Pokkali, Supriya/H-4773-2013
OI Pokkali, Supriya/0000-0002-6209-1679
FU NIH [OD006492, AI083125]
FX This study was funded by the NIH Director's New Innovator Award OD006492
(SKJ) and NIH grant AI083125 to PCK. The funders had no role in study
design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 42
TC 6
Z9 6
U1 1
U2 6
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 11
PY 2013
VL 8
IS 6
AR e66310
DI 10.1371/journal.pone.0066310
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 169CU
UT WOS:000320755400135
PM 23776655
ER
PT J
AU Wong, DT
Wang, C
Pople, JA
Balsara, NP
AF Wong, David T.
Wang, Cheng
Pople, John A.
Balsara, Nitash P.
TI Effect of Nonsolvent Exposure on Morphology of Mesoporous
Semicrystalline Block Copolymer Films
SO MACROMOLECULES
LA English
DT Article
ID SCATTERING; TECHNOLOGY; SEPARATORS; BATTERY
AB Polystyrene-block-polyethylene-block-polystyrene (SES) copolymers were blended with homopolymer polystyrene (PS), and films of the blend were solvent cast using a doctor blade. The nonporous SES and PS films were exposed to both tetrahydrofuran (THF) and methanol (MeOH) in an alternating fashion for 1 min intervals three times, without letting the films dry between solvent immersions. At this point, either the films were removed from MeOH and dried or the films were immersed in THF and then dried. THF is a nonsolvent for crystalline polyethylene (PE) but a good solvent for both amorphous PE and PS. Methanol is a nonsolvent for semicrystalline PE, amorphous PE, and PS. Films that were dried with MeOH as the final nonsolvent were highly porous and exhibited high conductivity when swollen in a liquid electrolyte. In contrast, films that were dried with THF as the final nonsolvent were nonporous and exhibited poor conductivity when swollen in a liquid electrolyte. We study the fundamental effect of nonsolvent exposure on film properties using electron microscopy, nitrogen physisorption, and X-ray scattering techniques.
C1 [Wong, David T.; Balsara, Nitash P.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
[Wong, David T.; Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Wang, Cheng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Pople, John A.] SLAC, Stanford Synchrotron Radiat Light Source, Stanford, CA 94309 USA.
RP Balsara, NP (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.
EM nbalsara@berkeley.edu
RI Wang, Cheng/A-9815-2014
FU Assistant Secretary for Energy Efficiency and Renewable Energy, Office
of Vehicle Technologies of the U.S. Department of Energy under the
Batteries for Advanced Transportation Technologies (BATT) Program
[DE-AC02-05CH11231]; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-05CH11231]
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Office of Vehicle Technologies of the U.S.
Department of Energy, under Contract DE-AC02-05CH11231 under the
Batteries for Advanced Transportation Technologies (BATT) Program. The
Advanced Light Source is supported by the U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences, under Contract
DE-AC02-05CH11231. We also thank Dr. Anthony Young at the Advanced Light
Source for his generous help and useful discussions with the RSoXS
experiments. Portions of this research were carried out at the Stanford
Synchrotron Radiation Lightsource, a Directorate of SLAC National
Accelerator Laboratory and an Office of Science User Facility operated
for the U.S. Department of Energy Office of Science by Stanford
University.
NR 20
TC 9
Z9 9
U1 1
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD JUN 11
PY 2013
VL 46
IS 11
BP 4411
EP 4417
DI 10.1021/ma400051x
PG 7
WC Polymer Science
SC Polymer Science
GA 165LR
UT WOS:000320485900020
ER
PT J
AU McCulloch, B
Portale, G
Bras, W
Pople, JA
Hexemer, A
Segalman, RA
AF McCulloch, Bryan
Portale, Giuseppe
Bras, Wim
Pople, John A.
Hexemer, Alexander
Segalman, Rachel A.
TI Dynamics of Magnetic Alignment in Rod-Coil Block Copolymers
SO MACROMOLECULES
LA English
DT Article
ID DISORDER TRANSITION-TEMPERATURE; LAMELLAR DIBLOCK COPOLYMER;
FIELD-INDUCED ALIGNMENT; SMECTIC-A PHASE; ELECTRIC-FIELD; MICROPHASE
SEPARATION; SHEAR ALIGNMENT; THIN-FILMS; MICROSTRUCTURE; ORIENTATION
AB The dynamics associated with magnetic field alignment of a model rod-coil block copolymer poly(2,5-di(2'-ethylhexyloxy)-1,4-phenylenevinylene)-b-polyisoprene (PPV-PI) have been investigated using a combination of time resolved in situ small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Alignment is observed over a wide range of field strengths (0.2-7 T); however, the highest field strengths studied produce the highest degree of alignment Experiments examining alignment of a disordered sample, cooled into the ordered state in the presence of a magnetic field, show that alignment mostly occurs during nucleation and growth of the block copolymer nanostructure. The slower secondary processes of defect annihilation and grain rotation progress are necessary in producing extremely highly aligned samples. At the highest field strength, due to the increased order disorder transition temperature (TOOT), selective ordering is likely observed at temperatures near the order disorder transition leading to nucleation of aligned block copolymer grains, resulting in faster and a higher degree of alignment. Additionally, at these high field strengths the alignment process appears to have a more complex defect production and removal process than at low field strengths. At low field strengths isotropic nucleation occurs, and then preferential growth of aligned block copolymer grains is primarily responsible for alignment Finally, an optimum alignment temperature is observed where the thermodynamic driving force for alignment, thermal disordering processes, and the kinetic effects governing block copolymer growth and defect removal are balanced.
C1 [McCulloch, Bryan; Segalman, Rachel A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[McCulloch, Bryan; Segalman, Rachel A.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
[Segalman, Rachel A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Portale, Giuseppe; Bras, Wim] European Synchrotron Radiat Facil, DUBBLE CRG, Netherlands Org Sci Res NWO, F-38043 Grenoble, France.
[Pople, John A.] Stanford Synchrotron Radiat Lab, SLAC, Stanford, CA 94309 USA.
[Hexemer, Alexander] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Segalman, RA (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM segalman@berkeley.edu
OI Segalman, Rachel/0000-0002-4292-5103
FU Lawrence Berkeley National Laboratories; U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering [DE-AC02-05CH11231]; Dow Advanced Materials Fellowship;
Office of Science, Office of Basic Energy Sciences, of the U.S.
Department of Energy [DE-AC02-05CH11231]
FX Research was supported through the Thermoelectrics Program at Lawrence
Berkeley National Laboratories, by the U.S. Department of Energy, Office
of Basic Energy Sciences, Division of Materials Sciences and
Engineering, under Contract DE-AC02-05CH11231. B.M. gratefully
acknowledges partial support via the Dow Advanced Materials Fellowship.
The Advanced Light Source is supported by the Director, Office of
Science, Office of Basic Energy Sciences, of the U.S. Department of
Energy under Contract DE-AC02-05CH11231. In situ small-angle X-ray
scattering was performed at the European Synchrotron Radiation Facility
on beamline BM26B DUBBLE, and The Netherlands Organization for
Scientific Research (NVO) is thanked for making the beam time available.
Portions of this research were carried out at the Stanford Synchrotron
Radiation Lightsource, a Directorate of SLAC National Accelerator
Laboratory and an Office of Science User Facility operated for the U.S.
Department of Energy Office of Science by Stanford University. We also
thank Pawel Majewski, Dr. Chinedum Osuji, Dr. Brad Olson, and Dr. Young
Rae Hong for helpful discussions.
NR 42
TC 15
Z9 17
U1 4
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD JUN 11
PY 2013
VL 46
IS 11
BP 4462
EP 4471
DI 10.1021/ma400430h
PG 10
WC Polymer Science
SC Polymer Science
GA 165LR
UT WOS:000320485900027
ER
PT J
AU Ruderer, MA
Wang, C
Schaible, E
Hexemer, A
Xu, T
Muller-Buschbaum, P
AF Ruderer, Matthias A.
Wang, Cheng
Schaible, Eric
Hexemer, Alexander
Xu, Ting
Mueller-Buschbaum, Peter
TI Morphology and Optical Properties of P3HT:MEH-CN-PPV Blend Films
SO MACROMOLECULES
LA English
DT Article
ID HETEROJUNCTION SOLAR-CELLS; X-RAY-SCATTERING; CONJUGATED-POLYMER BLENDS;
LONG-CHAIN COMPOUNDS; THIN-FILMS; PHASE-SEPARATION; ORGANIC
PHOTOVOLTAICS; EFFICIENCY; POLY(3-HEXYLTHIOPHENE); POLYPYRROLE
AB Thin photoactive polymer blend films of poly(3-hexylthiophene-2,5-diyl) (P3HT) and poly(5-(2-(ethylhexyloxy)-2-methoxycyanoterephthalyliden) (MEH-CN-PPV) are investigated. The morphology is probed as a function of blend ratio (21, 28, 44, 54, and 70 wt % P3HT) and annealing using imaging techniques and soft X-ray scattering. The surface structure is detected with optical microscopy and atomic force microscopy (AFM), the inner film morphology and the near-surface structure with grazing incidence resonant soft X-ray scattering (GI-RSoXS) using different X-ray energies. Characteristic lateral structures determined with GI-RSoXS are in agreement with AFM observations and complemented with optical microscopy. The topography and the inner film morphology have the same structural length scales. Grazing incidence wide-angle X-ray scattering (GIWAXS) results confirm the crystallinity of the P3HT domains, which is increasing with annealing, and shows no indication for crystallinity in MEH-CN-PPV. In addition, GIWAXS measurements reveal a blend ratio dependent orientation of P3HT crystals. Absorption and photoluminescence measurements complement the structural investigations.
C1 [Ruderer, Matthias A.; Mueller-Buschbaum, Peter] Tech Univ Munich, Dept Phys, Lehrstuhl Funkt Mat, D-85748 Garching, Germany.
[Wang, Cheng; Schaible, Eric; Hexemer, Alexander] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Xu, Ting] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Xu, Ting] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Muller-Buschbaum, P (reprint author), Tech Univ Munich, Dept Phys, Lehrstuhl Funkt Mat, James Franck Str 1, D-85748 Garching, Germany.
EM muellerb@ph.tum.de
RI Wang, Cheng/A-9815-2014; Muller-Buschbaum, Peter/C-3397-2017
OI Muller-Buschbaum, Peter/0000-0002-9566-6088
FU EuroTech Universities Green Tech Initiative; Bavarian State Ministry of
Sciences, Research and Arts through the International Graduate School
"Materials Science of Complex Interfaces" (CompInt); Office of Science,
Office of Basic Energy Sciences, of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX Funding via the "Interface Science for Photovoltaics" (ISPV) project of
the EuroTech Universities Green Tech Initiative is acknowledged. MAR
thanks the Bavarian State Ministry of Sciences, Research and Arts for
funding this research work through the International Graduate School
"Materials Science of Complex Interfaces" (CompInt). The Advanced Light
Source is supported by the Director, Office of Science, Office of Basic
Energy Sciences, of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231.
NR 86
TC 18
Z9 18
U1 3
U2 49
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD JUN 11
PY 2013
VL 46
IS 11
BP 4491
EP 4501
DI 10.1021/ma4006999
PG 11
WC Polymer Science
SC Polymer Science
GA 165LR
UT WOS:000320485900030
ER
PT J
AU Madbouly, SA
Xia, Y
Kessler, MR
AF Madbouly, Samy A.
Xia, Ying
Kessler, Michael R.
TI Rheological Behavior of Environmentally Friendly Castor Oil-Based
Waterborne Polyurethane Dispersions
SO MACROMOLECULES
LA English
DT Article
ID AQUEOUS DISPERSIONS; GEL POINT; PHYSICAL-PROPERTIES; BLOCK-COPOLYMERS;
VISCOELASTICITY; STOICHIOMETRY; EMULSIONS; NETWORKS; IONOMERS; GELATION
AB Novel biorenewable, waterborne, castor oil-based polyurethane dispersions (PUDs) were successfully synthesized via homogeneous solution polymerization in methyl ethyl ketone followed by solvent exchange with water. Small-amplitude oscillatory shear flow experiments were used to systematically investigate the rheological behavior of these environmentally friendly, biorenewable, aqueous dispersions as a function of angular frequency, solid content, and temperature. In addition, the morphology of the dispersions was investigated at 60 degrees C for different time intervals using transmission electron microscopy (TEM). The solid content and temperature were found to significantly affect the rheological behavior of the PUDs. The composition dependency of the complex viscosity (eta*) was found to be well described by the Krieger-Dougherty equation. Thermally induced gelation was observed for PUDs with a solid content >= 27 wt %. Although the viscoelastic behavior of the PUDs was Well described by the time temperature superposition (TTS) principle in a temperature range lower than the gel point, TTS failed to represent the behavior of the PUDs at temperatures near the critical gel point. The real time gelation behavior was also studied for different solid contents of PUDs under isothermal conditions over a wide range of angular frequencies. Furthermore, both G' and G" showed a power law relationship with the angular frequency at the gel point, with critical power law exponents similar to those predicted theoretically by percolation theory. Aggregation and interconnection of the nano-PU particles caused the formation of fractal gels at a critical temperature, as confirmed by TEM.
C1 [Madbouly, Samy A.; Xia, Ying; Kessler, Michael R.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Kessler, Michael R.] US DOE, Ames Lab, Ames, IA 50011 USA.
[Kessler, Michael R.] Washington State Univ, Dept Mech & Mat Engn, Pullman, WA 99164 USA.
[Madbouly, Samy A.] Cairo Univ, Fac Sci, Dept Chem, Orman Giza, Egypt.
RP Kessler, MR (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
EM MichaelR.Kessler@wsu.edu
RI Kessler, Michael/C-3153-2008; Xia, Ying/G-9533-2012
OI Kessler, Michael/0000-0001-8436-3447;
NR 57
TC 37
Z9 41
U1 9
U2 111
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD JUN 11
PY 2013
VL 46
IS 11
BP 4606
EP 4616
DI 10.1021/ma400200y
PG 11
WC Polymer Science
SC Polymer Science
GA 165LR
UT WOS:000320485900043
ER
PT J
AU Sutter, M
Wilson, A
Leverenz, RL
Lopez-Igual, R
Thurotte, A
Salmeen, AE
Kirilovsky, D
Kerfeld, CA
AF Sutter, Markus
Wilson, Adjele
Leverenz, Ryan L.
Lopez-Igual, Rocio
Thurotte, Adrien
Salmeen, Annette E.
Kirilovsky, Diana
Kerfeld, Cheryl A.
TI Crystal structure of the FRP and identification of the active site for
modulation of OCP-mediated photoprotection in cyanobacteria
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE nonphotochemical quenching; Synechocystis
ID ORANGE CAROTENOID PROTEIN; SYNECHOCYSTIS PCC 6803; BINDING; MECHANISM;
RECOVERY; STATE; MODEL
AB Photosynthetic reaction centers are sensitive to high light conditions, which can cause damage because of the formation of reactive oxygen species. To prevent high-light induced damage, cyanobacteria have developed photoprotective mechanisms. One involves a photoactive carotenoid protein that decreases the transfer of excess energy to the reaction centers. This protein, the orange carotenoid protein (OCP), is present in most cyanobacterial strains; it is activated by high light conditions and able to dissipate excess energy at the site of the light-harvesting antennae, the phycobilisomes. Restoration of normal antenna capacity involves the fluorescence recovery protein (FRP). The FRP acts to dissociate the OCP from the phycobilisomes by accelerating the conversion of the active red OCP to the inactive orange form. We have determined the 3D crystal structure of the FRP at 2.5 angstrom resolution. Remarkably, the FRP is found in two very different conformational and oligomeric states in the same crystal. Based on amino acid conservation analysis, activity assays of FRP mutants, FRP: OCP docking simulations, and coimmunoprecipitation experiments, we conclude that the dimer is the active form. The second form, a tetramer, may be an inactive form of FRP. In addition, we have identified a surface patch of highly conserved residues and shown that those residues are essential to FRP activity.
C1 [Sutter, Markus; Salmeen, Annette E.; Kerfeld, Cheryl A.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Wilson, Adjele; Lopez-Igual, Rocio; Thurotte, Adrien; Kirilovsky, Diana] CEA, Inst Biol & Technol Saclay iBiTec S, F-91191 Gif Sur Yvette, France.
[Wilson, Adjele; Lopez-Igual, Rocio; Thurotte, Adrien; Kirilovsky, Diana] CENS, Lab Leon Brillouin, CNRS, Unite Mixte Rech 8221, F-91191 Gif Sur Yvette, France.
[Lopez-Igual, Rocio; Kerfeld, Cheryl A.] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA.
[Kerfeld, Cheryl A.] Berkeley Synthet Biol Inst, Berkeley, CA 94720 USA.
RP Kerfeld, CA (reprint author), US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
EM ckerfeld@lbl.gov
OI Sutter, Markus/0000-0001-6290-4820; Lopez-Igual,
Rocio/0000-0002-2369-1583; Thurotte, Adrien/0000-0002-3808-1913
FU Office of Science, Office of Basic Energy Sciences of the US Department
of Energy [DE-AC02-05CH11231]; Swiss National Science Foundation;
National Science Foundation [MCB0851094]; Agence Nationale de la
Recherche (ANR); Centre Nationale de Recherche Scientifique (CNRS);
Commisariat a l'energie atomique et aux energies alternatives (CEA);
HARVEST EU FP7 Marie Curie Research Training Network
FX We thank the entire staff at the Advanced Light Source, Lawrence
Berkeley National Laboratory, which is supported by the Director, Office
of Science, Office of Basic Energy Sciences of the US Department of
Energy under Contract DE-AC02-05CH11231, and Peter Zwart in particular
for excellent support during data collection. Modeling simulations were
run on the Genepool cluster at the National Energy Research Scientific
Computing Center (NERSC). M.S. was supported by a Swiss National Science
Foundation Postdoctoral Fellowship. R.L.L. and C.A.K. were supported by
National Science Foundation Grant MCB0851094. A.W., R.L.-I., A.T. and
D.K. have been supported by grants from Agence Nationale de la Recherche
(ANR, Cyanoprotect Project), Centre Nationale de Recherche Scientifique
(CNRS), Commisariat a l'energie atomique et aux energies alternatives
(CEA), and HARVEST EU FP7 Marie Curie Research Training Network.
NR 24
TC 30
Z9 32
U1 0
U2 23
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0027-8424
J9 P NATL ACAD SCI USA
JI Proc. Natl. Acad. Sci. U. S. A.
PD JUN 11
PY 2013
VL 110
IS 24
BP 10022
EP 10027
DI 10.1073/pnas.1303673110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 171LM
UT WOS:000320930100090
PM 23716688
ER
PT J
AU Grassellino, A
Beard, C
Kolb, P
Laxdal, R
Lockyer, NS
Longuevergne, D
Sonier, JE
AF Grassellino, A.
Beard, C.
Kolb, P.
Laxdal, R.
Lockyer, N. S.
Longuevergne, D.
Sonier, J. E.
TI Muon spin rotation studies of niobium for superconducting rf
applications
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID HYDROGEN
AB In this work we investigate superconducting properties of niobium samples via application of the muon spin rotation/relaxation (mu SR) technique. We employ for the first time the mu SR technique to study samples that are cut out from large and small grain 1.5 GHz radio frequency (rf) single cell niobium cavities. The rf test of these cavities was accompanied by full temperature mapping to characterize the rf losses in each of the samples. Results of the mu SR measurements show that standard cavity surface treatments like mild baking and buffered chemical polishing performed on the studied samples affect their surface pinning strength. We find an interesting correlation between high field rf losses and field dependence of the sample magnetic volume fraction measured via mu SR. The mu SR line width observed in zero-field-mu SR measurements matches the behavior of Nb samples doped with minute amounts of Ta or N impurities. A lower and an upper bound for the upper critical field H-c2 of these cutouts is found.
C1 [Grassellino, A.; Beard, C.; Kolb, P.; Laxdal, R.; Lockyer, N. S.; Longuevergne, D.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Grassellino, A.] Univ Penn, Philadelphia, PA 19104 USA.
[Kolb, P.] Univ British Columbia, Vancouver, BC V6T 1Z4, Canada.
[Sonier, J. E.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Sonier, J. E.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada.
RP Grassellino, A (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM annag@fnal.gov
NR 32
TC 6
Z9 6
U1 1
U2 11
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 11
PY 2013
VL 16
IS 6
AR 062002
DI 10.1103/PhysRevSTAB.16.062002
PG 14
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 163AV
UT WOS:000320308600001
ER
PT J
AU Shishlo, A
Aleksandrov, A
AF Shishlo, A.
Aleksandrov, A.
TI Noninterceptive method to measure longitudinal Twiss parameters of a
beam in a hadron linear accelerator using beam position monitors
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
AB A new method of measuring of the rms longitudinal Twiss parameters of a beam in linear accelerators is presented. It is based on using sum signals from beam position monitors sensitive to the longitudinal charge distribution in the bunch. The applicability of the method is demonstrated on the superconducting section of the Oak Ridge Spallation Neutron Source linear accelerator. The results are compared to a direct measurement of the bunch longitudinal profiles using an interceptive bunch shape monitor in the linac warm section of the same accelerator. Limitations of the method are discussed. The method is fast and simple, and can be used to obtain the initial parameters for the longitudinal matching in linear accelerators where interceptive diagnostics are not desirable.
C1 [Shishlo, A.; Aleksandrov, A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Shishlo, A (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA.
EM shishlo@ornl.gov
FU U.S. Department of Energy [DE-AC05-00OR22725]
FX The authors are grateful to J. Brian and Dr. Craig Deibele for help with
the SNS beam instrumentation during the measurements. The work was
performed at Spallation Neutron Source accelerator at Oak Ridge National
Laboratory (ORNL). This manuscript has been authored by UT-Battelle,
LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of
Energy.
NR 8
TC 1
Z9 1
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD JUN 11
PY 2013
VL 16
IS 6
AR 062801
DI 10.1103/PhysRevSTAB.16.062801
PG 6
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 163AV
UT WOS:000320308600002
ER
PT J
AU Sun, DZ
Gang, O
AF Sun, Dazhi
Gang, Oleg
TI DNA-Functionalized Quantum Dots: Fabrication, Structural, and
Physicochemical Properties
SO LANGMUIR
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; NANOPARTICLE ARRAYS; GOLD NANOPARTICLES;
CRYSTALLIZATION; PHOTOLUMINESCENCE; HYBRIDIZATION; NANOCLUSTERS;
NANOCRYSTALS; COLLOIDS; PROTEIN
AB We have systematically investigated the effect of physicochemical conditions, such as pH, salt concentration, and DNA/nanoparticle ratio, on the chemical conjugation process and structural and optical stability of carboxyl-functionalized quantum dots (QDs) functionalized with amino-modified DNA. We reveal the relationship between aqueous conditions and the amount of DNA conjugated on QDs, colloidal stability, and yield of the final QD-DNA conjugates. By carefully adjusting the environmental variables we have successfully achieved up to 20 DNA strands conjugated per QD, and demonstrated how this number can be tuned. The fabricated QD-DNA,conjugates are dispersed and optically stable in salted solutions for over a month. We have also evaluated the involved interparticle interactions to explain the solution behavior of QD-DNA conjugates. Our, results provide a basic understanding of the physiochemical processes governing a nanoparticle-biomolecule conjugation and the structural stability of the formed conjugates. Such fabricated QD-DNA conjugates, might be of great benefit for programmable assemblies of optically active nanomaterials and for emerging biosensing methods based on nanomaterials.
C1 [Sun, Dazhi; Gang, Oleg] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Gang, O (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM ogang@bnl.gov
RI Sun, Dazhi/F-5144-2013
OI Sun, Dazhi/0000-0001-7553-3141
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]; SUSTC [JCYJ20120830154526538]
FX Research carried out at the Center for Functional Nanomaterials,
Brookhaven National Laboratory, is supported by the U.S. Department of
Energy, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886. We thank Dr. Andrea L. Stadler for helpful
discussions and suggestions and Dr. Zhihua Xu for the assistance in the
optical measurements. Sun DZ also acknowledges funding
JCYJ20120830154526538 at SUSTC.
NR 49
TC 21
Z9 21
U1 2
U2 72
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD JUN 11
PY 2013
VL 29
IS 23
BP 7038
EP 7046
DI 10.1021/la4000186
PG 9
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 165LM
UT WOS:000320485400032
PM 23706124
ER
PT J
AU Bouchevreau, B
Martineau, C
Mellot-Draznieks, C
Tuel, A
Suchomel, MR
Trebosc, J
Lafon, O
Amoureux, JP
Taulelle, F
AF Bouchevreau, Boris
Martineau, Charlotte
Mellot-Draznieks, Caroline
Tuel, Alain
Suchomel, Matthew R.
Trebosc, Julien
Lafon, Olivier
Amoureux, Jean-Paul
Taulelle, Francis
TI High-Resolution Structural Characterization of Two Layered
Aluminophosphates by Synchrotron Powder Diffraction and NMR
Crystallographies
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE aluminophosphates; synchrotron powder diffraction; NMR; NMR
crystallography; layered solids
ID SOLID-STATE NMR; RIETVELD REFINEMENT; COMBINED XRD; MAS NMR; FRAMEWORKS;
DISORDER; ALUMINUM; SPECTRA; NUCLEAR; PHASE
AB The syntheses and structure resolution process of two highly complex powdered aluminophosphates with an original 5:7 Al/P ratio are presented: [Al-5(OH)(PO4)(3)(PO3OH)(4)] [NH3(CH2)(2)NH3](2) [2H(2)O], compound 1, and [Al-5(PO4)(5)(PO3OH)(2)] [NH3(CH2)(3)NH3](2) [H2O], compound 2. We have previously reported the structure of the periodic part of 1 by coupling synchrotron powder diffraction and solid-state nuclear magnetic resonance (NMR) crystallographies. With a similar strategy, that is, input of large parts of the building blocksdetermined by analysis of the Al-27-P-31 correlation pattern of the two-dimensional (2D) NMR spectrum in the structure search process, we first determine the periodic structure of 2, using the powder synchrotron diffraction data as cost function. Both 1 and 2 are layered materials, in which the inorganic layers contain five P and seven Alinequivalent atoms, with aluminum atoms that are found in three different coordination states, AlO4, AlO5, and AlO6, and the interlayer space contains the amines and water molecules. In 1, the inorganic layers are stacked on each other with a 42 element of symmetry along the c-axis, while they are stacked with a 180 degrees rotation angle in 2. By analysis of a set of high-resolution 1D and 2D NMR spectra (P-31, Al-27, H-1, N-15, C-13, Al-27-P-31, H-1-P-31, and H-1-N-14) the structure analysis of 1 and 2 is extended beyond the strict periodicity, to which diffraction is restricted, and provides localization of the hydroxyl groups and water molecules in the frameworks and an attempt to correlate the presence of these latter species to the structural features of the two samples is presented. Finally, the dehydration/rehydration processes occurring in these solids are analyzed. The methodology of the structure determination for these dehydrated forms uses the same principles, combining X-ray powder diffraction and solid-state NMR data.
C1 [Bouchevreau, Boris; Martineau, Charlotte; Taulelle, Francis] Univ Versailles St Quentin Yvelines, CNRS UMR 8180, Tectospin, Inst Lavoisier Versailles, F-78035 Versailles, France.
[Mellot-Draznieks, Caroline] UCL, Dept Chem, London WC1H 0AJ, England.
[Tuel, Alain] Univ Lyon 1, Inst Rech Catalyse & Environm Lyon, IRCELYON, CNRS UMR 5256, F-69626 Villeurbanne, France.
[Suchomel, Matthew R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Trebosc, Julien; Lafon, Olivier; Amoureux, Jean-Paul] Univ Lille Nord France, F-59000 Lille, France.
[Trebosc, Julien; Lafon, Olivier; Amoureux, Jean-Paul] USTL, CNRS UMR 8181, UCCS, F-59652 Villeneuve Dascq, France.
RP Martineau, C (reprint author), Univ Versailles St Quentin Yvelines, CNRS UMR 8180, Tectospin, Inst Lavoisier Versailles, 45 Ave Etats Unis, F-78035 Versailles, France.
EM charlotte.martineau@uvsq.fr; francis.taulelle@uvsq.fr
RI Suchomel, Matthew/C-5491-2015; Bouchevreau, Boris/M-9792-2015; Lafon,
Olivier/H-1046-2012; TUEL, Alain/E-7176-2017;
OI Lafon, Olivier/0000-0002-5214-4060; SUCHOMEL,
Matthew/0000-0002-9500-5079
FU TGE RMN THC [FR3050]; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-06CH11357]; Region Nord/Pas de
Calais; Europe (FEDER); CNRS; French Minister of Science; USTL; ENSCL;
CortecNet; Bruker BIOSPIN; [ANR-2010-JCJC-0811-01]
FX Financial support from the TGE RMN THC FR3050 for conducting the
research is gratefully acknowledged. Use of the Advanced Photon Source
at Argonne National Laboratory was supported by the U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. DE-AC02-06CH11357. Pr. G. Ferey was the source of
inspiration for this study that has been approached, at the periodic
structural level only, in a previous unpublished study by Drs. J.
Dutour, C. Mellot-Draznieks, and N. Guillou during J. Dutour's PhD.
J.P.A, O.L., and J.T. are grateful for funding provided by Region
Nord/Pas de Calais, Europe (FEDER), CNRS, French Minister of Science,
USTL, ENSCL, CortecNet, Bruker BIOSPIN, and contract No.
ANR-2010-JCJC-0811-01.
NR 48
TC 16
Z9 16
U1 4
U2 51
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
EI 1520-5002
J9 CHEM MATER
JI Chem. Mat.
PD JUN 11
PY 2013
VL 25
IS 11
BP 2227
EP 2242
DI 10.1021/cm4004799
PG 16
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 165LP
UT WOS:000320485700005
ER
PT J
AU Agiral, A
Soo, HS
Frei, H
AF Agiral, Anil
Soo, Han Sen
Frei, Heinz
TI Visible Light Induced Hole Transport from Sensitizer to Co3O4 Water
Oxidation Catalyst across Nanoscale Silica Barrier with Embedded
Molecular Wires
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE cobalt oxide; silica; core-shell nanoparticle; molecular wires; visible
light; hole transport; transient optical spectroscopy
ID CHEMICAL-VAPOR-DEPOSITION; QUANTUM DOTS; MAGNETIC-PROPERTIES;
NANOPARTICLES; NANOCOMPOSITES; FILMS; OXIDE; GEL; SPECTROSCOPY;
EVOLUTION
AB In an artificial photosynthetic system, separation of the catalytic sites for water oxidation from those of carbon dioxide reduction by a gas impermeable physical barrier is an important requirement for avoiding cross and back reactions. Here, an approach is explored that uses crystalline Co3O4 as an oxygen evolving catalyst and a nanometer-thin dense phase silica layer as the separation barrier. For controlled charge transport across the barrier, hole conducting molecular wires are embedded in the silica. Spherical Co3O4(4 nm)-SiO2(2 nm) core-shell nanoparticles with p-oligo(phenylenevinylene) wire molecules (three aryl units, PV3) cast into the silica were developed to establish proof of concept for charge transport across the embedded wire molecules. FT-Raman, FT-infrared, and UV-Visible spectroscopy confirmed the integrity of the organic wires upon casting in silica. Transient optical absorption spectroscopy of a visible light sensitizer (ester derivatized [Ru(bpy)(3)](2+) complex) indicates efficient charge injection into Co3O4-SiO2 particles with embedded wire molecules in aqueous solution. An upper limit of a few microseconds is inferred for the residence time of the hole on the embedded PV3 molecule before transfer to Co3O4 takes place. The result was corroborated by light on/off experiments using rapid scan FT-IR monitoring. These observations indicate that hole conducting organic wire molecules cast into a dense phase, nanometer thin silica layer offer fast, controlled charge transfer through a product-s'epurating oxide barrier.
C1 [Agiral, Anil; Soo, Han Sen; Frei, Heinz] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Frei, H (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM hmfrei@lbl.gov
RI Soo Han Sen, Han Sen/B-7016-2011; Foundry, Molecular/G-9968-2014
FU Helios Solar Energy Research Center; Office of Science, Office of Basic
Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231];
National Center for Electron Microscopy; U.S. Department of Energy;
Netherlands Organization for Scientific Research (NWO); Lawrence
Berkeley National Laboratory
FX This work was funded by the Helios Solar Energy Research Center, which
is supported by the Director, Office of Science, Office of Basic Energy
Sciences of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. The authors acknowledge the support of the National
Center for Electron Microscopy, Lawrence Berkeley National Laboratory,
which is supported by the U.S. Department of Energy. Anil Agiral
acknowledges The Netherlands Organization for Scientific Research (NWO)
for a Rubicon fellowship. The authors thank Dr. Selim Alayoglu for
assistance during the TEM and EDX measurements and Dr. Christian
Kisielowski and Mr. Norman Pellet for imaging and EELS measurements at
the TEAM0.5 microscope.
NR 46
TC 28
Z9 28
U1 3
U2 127
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
EI 1520-5002
J9 CHEM MATER
JI Chem. Mat.
PD JUN 11
PY 2013
VL 25
IS 11
BP 2264
EP 2273
DI 10.1021/cm400759f
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 165LP
UT WOS:000320485700008
ER
PT J
AU Jensen, KMO
Christensen, M
Gunnlaugsson, HP
Lock, N
Bojesen, ED
Proffen, T
Iversen, BB
AF Jensen, Kirsten M. O.
Christensen, Mogens
Gunnlaugsson, Haraldur P.
Lock, Nina
Bojesen, Espen D.
Proffen, Thomas
Iversen, Bo B.
TI Defects in Hydrothermally Synthesized LiFePO4 and LiFe1-xMnxPO4 Cathode
Materials
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE LiFePO4; defects; powder diffraction; total scattering
ID LITHIUM IRON PHOSPHATE; X-RAY-DIFFRACTION; SUPERCRITICAL WATER;
ROOM-TEMPERATURE; PREPARED LIFEPO4; SPECTROSCOPY; REACTIVITY; DIFFUSION;
LIXFEPO4; OLIVINES
AB The crystal structure and defect chemistry of hydrothermally synthesized LiFe1-xMnxPO4 (x = 0, 0.25, and 0.50) particles have been characterized by simultaneous neutron and X-ray Rietveld refinement as well as X-ray and neutron pair distribution function (PDF) analysis, crystallinity determination, Mossbauer spectroscopy, ion coupled plasma (ICP) studies, and scanning electron microscopy (SEM). The very detailed structural refinements show that fast hydrothermal synthesis causes partial Fe-occupancy and vacancies on the Li (M1) site, while the Fe (M2) site is always fully occupied by iron. Thus, the defect is not merely a Li/Fe antisite defect, and excessive amounts of Fe are the origin of the disorder in the structure. Neutron and X-ray total scattering with PDF analysis show that after fast hydrothermal synthesis, the crystalline, defective LixFeyPO4 coexists with amorphous Li/Fe-PO4 structures having just short-range order. Iron excess is only seen in the crystalline part of the particles, and as the crystallinity of the samples increases with longer synthesis time, the crystalline Fe/Li ratio approaches 1. The present data thus suggest that when crystalline particles initially form, Fe is included faster in the structure from the amorphous precursor than Li, causing the defects in the structure. Only when all Li have been incorporated into the crystal structure and 100% crystallinity is achieved, fully ordered, defect free samples can be obtained. The Fe occupancy on the M1 site is therefore directly linked to the crystallinity of the sample. In LiFe1-xMnxPO4 samples, the transition metal defect on the M1 site is only Fe and not Mn. Furthermore, the presence of Mn locks in the defects, and thus the Fe disorder is not suppressed with extended synthesis time.
C1 [Jensen, Kirsten M. O.; Christensen, Mogens; Lock, Nina; Bojesen, Espen D.; Iversen, Bo B.] Aarhus Univ, Dept Chem, Ctr Mat Crystallog, DK-8000 Aarhus C, Denmark.
[Jensen, Kirsten M. O.; Christensen, Mogens; Lock, Nina; Bojesen, Espen D.; Iversen, Bo B.] Aarhus Univ, INANO, DK-8000 Aarhus C, Denmark.
[Gunnlaugsson, Haraldur P.] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark.
[Lock, Nina] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany.
[Proffen, Thomas] Oak Ridge Natl Lab, Div Neutron Sci, Oak Ridge, TN 37831 USA.
RP Iversen, BB (reprint author), Aarhus Univ, Dept Chem, Ctr Mat Crystallog, DK-8000 Aarhus C, Denmark.
EM bo@chem.au.dk
RI Proffen, Thomas/B-3585-2009; Jensen, Kirsten Marie Ornsbj/I-9367-2012;
Bojesen, Espen/O-7391-2015
OI Proffen, Thomas/0000-0002-1408-6031; Jensen, Kirsten Marie
Ornsbj/0000-0003-0291-217X; Bojesen, Espen/0000-0002-9352-9514
FU Danish National Research Foundation (Center for Materials
Crystallography) [DNRF93]; Danish Research Council for Nature and
Universe (Danscatt); DOE-Basic Energy Sciences under FWP [2012LANLE389];
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]
FX This work was supported by the Danish National Research Foundation
(Center for Materials Crystallography, DNRF93) and the Danish Research
Council for Nature and Universe (Danscatt). The research was performed
on the NPDF instrument at the Lujan Center at Los Alamos National
Laboratory supported by DOE-Basic Energy Sciences under FWP
#2012LANLE389. Use of the Advanced Photon Source was supported by the
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-06CH11357. The synchrotron
radiation experiment at the SPring-8 synchrotron was conducted with the
approval of the Japan Synchrotron Radiation Research Institute. The
RIKEN-SPring8 Center is thanked for access to the BL44B2 beamline.
NR 48
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PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD JUN 11
PY 2013
VL 25
IS 11
BP 2282
EP 2290
DI 10.1021/cm4008393
PG 9
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 165LP
UT WOS:000320485700010
ER
PT J
AU Gu, M
Genc, A
Belharouak, I
Wang, DP
Amine, K
Thevuthasan, S
Baer, DR
Zhang, JG
Browning, ND
Liu, J
Wang, CM
AF Gu, Meng
Genc, Arda
Belharouak, Ilias
Wang, Dapeng
Amine, Khalil
Thevuthasan, Suntharampillai
Baer, Donald R.
Zhang, Ji-Guang
Browning, Nigel D.
Liu, Jun
Wang, Chongmin
TI Nanoscale Phase Separation, Cation Ordering, and Surface Chemistry in
Pristine Li1.2Ni0.2Mn0.6O2 for Li-Ion Batteries
SO CHEMISTRY OF MATERIALS
LA English
DT Article
DE Li-rich layered composite; Li1.2Ni0.2Mn0.6O2; phase separation; cation
ordering; oxygen vacancies; Li-ion batteries
ID ELECTRON-MICROSCOPY; LITHIUM BATTERIES; CATHODE MATERIAL;
LOCAL-STRUCTURE; LI2MNO3; STABILITY; CONTRAST; NICKEL; OXIDES
AB Li-rich layered material Li1.2Ni0.2Mn0.6O2 possesses high voltage and high specific capacity, which makes it an attractive candidate for the transportation industry and sustainable energy storage systems. The rechargeable capacity of the Li-ion battery is linked largely to the structural stability of the cathode materials during the charge-discharge cycles. However, the structure and cation distribution in Pristine Li1.2Ni0.2Mn0.6O2 have not yet been fully characterized. Using a combination of aberration-corrected scanning transmission electron microscopy, X-ray energy-dispersive spectroscopy (XEDS), electron energy loss spectroscopy (EELS), and complementary multislice image simulation, we have probed the crystal structure, cation/anion distribution, and electronic structure of the Li1.2Ni0.2Mn0.6O2 nanoparticle. The electronic structure and valence state of transition-metal ions show significant variations, which have been identified to be attributed to the oxygen deficiency near certain particle surfaces. Characterization of the nanoscale phase separation and cation ordering in the pristine material are critical for understanding the capacity and voltage fading of this material for battery application.
C1 [Gu, Meng; Thevuthasan, Suntharampillai; Baer, Donald R.; Wang, Chongmin] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Genc, Arda] FEI Co, Hillsboro, OR 97124 USA.
[Belharouak, Ilias; Wang, Dapeng; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Zhang, Ji-Guang; Liu, Jun] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
[Browning, Nigel D.; Liu, Jun] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Wang, CM (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM Chongmin.Wang@pnnl.gov
RI Baer, Donald/J-6191-2013; Amine, Khalil/K-9344-2013; Gu,
Meng/B-8258-2013; Foundry, Molecular/G-9968-2014;
OI Baer, Donald/0000-0003-0875-5961; Browning, Nigel/0000-0003-0491-251X;
Belharouak, Ilias/0000-0002-3985-0278
FU U.S. Department of Energy (DOE) [DE-AC05-76RLO1830]; DOE's Office of
Biological and Environmental Research; Office of Vehicle Technologies of
DOE [DE-AC02-05CH11231, 18769]; DOE Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering [KC020105-FWP12152];
DOE's Freedom CAR and Vehicle Technologies Office; DOE
[DE-AC02-05CH11231]
FX The research described in this paper is part of the Chemical Imaging
Initiative at Pacific Northwest National Laboratory (PNNL). It was
conducted under the Laboratory Directed Research and Development Program
at PNNL, a multiprogram national laboratory operated by Battelle, under
Contract No. DE-AC05-76RLO1830 for the U.S. Department of Energy (DOE).
The work was conducted in the William R. Wiley Environmental Molecular
Sciences Laboratory (EMSL), a national scientific user facility
sponsored by DOE's Office of Biological and Environmental Research and
located at PNNL. J.Z. would like to acknowledge the support of the
Assistant Secretary for Energy Efficiency and Renewable Energy, Office
of Vehicle Technologies of DOE under Contract No. DE-AC02-05CH11231,
Subcontract No. 18769 under the Batteries for Advanced Transportation
Technologies (BATT) program. J.L. would like to acknowledge the support
of the DOE Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering, under Award No. KC020105-FWP12152. I.B. and
K.A. would like to acknowledge the support from DOE's Freedom CAR and
Vehicle Technologies Office. Part of the work performed at the National
Center for Electron Microscopy (NCEM) was supported by DOE, under
Contract No. DE-AC02-05CH11231. M.G. wants to thank Dr. Chengyu Song
(NCEM) for technical support on the TEAM 0.5 microscope.
NR 34
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PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
J9 CHEM MATER
JI Chem. Mat.
PD JUN 11
PY 2013
VL 25
IS 11
BP 2319
EP 2326
DI 10.1021/cm4009392
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 165LP
UT WOS:000320485700014
ER
PT J
AU Garcia-Barriocanal, J
Perez-Munoz, AM
Sefrioui, Z
Arias, D
Varela, M
Leon, C
Pennycook, SJ
Santamaria, J
AF Garcia-Barriocanal, J.
Perez-Munoz, A. M.
Sefrioui, Z.
Arias, D.
Varela, M.
Leon, C.
Pennycook, S. J.
Santamaria, J.
TI Disorder-controlled superconductivity at YBa2Cu3O7/SrTiO3 interfaces
SO PHYSICAL REVIEW B
LA English
DT Article
ID INSULATOR TRANSITION; OXIDE INTERFACES; MULTILAYERS; SUPERLATTICES;
DEFECTS; STRAIN; SRTIO3; GROWTH; FILMS
AB We examine the effect of interface disorder in suppressing superconductivity in coherently grown ultrathin YBa2Cu3O7 (YBCO) layers on SrTiO3 (STO) in YBCO/STO superlattices. The termination plane of the STO is TiO2 and the CuO chains are missing at the interface. Disorder (steps) at the STO interface cause alterations of the stacking sequence of the intracell YBCO atomic layers. Stacking faults give rise to antiphase boundaries which break the continuity of the CuO2 planes and depress superconductivity. We show that superconductivity is directly controlled by interface disorder outlining the importance of pair breaking and localization by disorder in ultrathin layers.
C1 [Garcia-Barriocanal, J.; Perez-Munoz, A. M.; Sefrioui, Z.; Arias, D.; Varela, M.; Leon, C.; Santamaria, J.] Univ Complutense Madrid, GFMC Dpto Fis Aplicada 3, E-28040 Madrid, Spain.
[Perez-Munoz, A. M.] UCM UPM, Madrid 28040, Spain.
[Arias, D.] Univ Quindio, Grp Mat Magnet & Nanoestruct, Armenia, Spain.
[Varela, M.; Pennycook, S. J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Garcia-Barriocanal, J (reprint author), Univ Complutense Madrid, GFMC Dpto Fis Aplicada 3, E-28040 Madrid, Spain.
RI Leon, Carlos/A-5587-2008; Varela, Maria/E-2472-2014; Varela,
Maria/H-2648-2012; Santamaria, Jacobo/N-8783-2016; Sefrioui,
Zouhair/C-2728-2017
OI Leon, Carlos/0000-0002-3262-1843; Varela, Maria/0000-0002-6582-7004;
Santamaria, Jacobo/0000-0003-4594-2686; Sefrioui,
Zouhair/0000-0002-6703-3339
FU Spanish MINECO [MAT2011-27470-C02]; Consolider Ingenio [CSD2009-00013];
World Wide Materials Program; CAM [S2009/MAT-1756]; ERC [239739 STEMOX];
US Department of Energy, Basic Energy Sciences, Materials Sciences and
Engineering Division; Ramon y Cajal Program
FX We acknowledge financial support by Spanish MINECO through Grants No.
MAT2011-27470-C02 and Consolider Ingenio 2010 No. CSD2009-00013
(Imagine), and the World Wide Materials Program, by CAM through Grant
No. S2009/MAT-1756 (Phama), and by the ERC starting Investigator Award,
Grant No. 239739 STEMOX (GSS). Research at Oak Ridge National Laboratory
was sponsored by the US Department of Energy, Basic Energy Sciences,
Materials Sciences and Engineering Division. J.G.B. acknowledges
financial support through the Ramon y Cajal Program.
NR 35
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U2 49
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 11
PY 2013
VL 87
IS 24
AR 245105
DI 10.1103/PhysRevB.87.245105
PG 4
WC Physics, Condensed Matter
SC Physics
GA 161BR
UT WOS:000320166300002
ER
PT J
AU Pauls, JA
Zhang, YT
Berman, GP
Kais, S
AF Pauls, James A.
Zhang, Yiteng
Berman, Gennady P.
Kais, Sabre
TI Quantum coherence and entanglement in the avian compass
SO PHYSICAL REVIEW E
LA English
DT Article
ID CHEMICAL COMPASS; MAGNETORECEPTION; BIRDS; CRYPTOCHROME; MODEL
AB The radical-pair mechanism is one of two distinct mechanisms used to explain the navigation of birds in geomagnetic fields, however little research has been done to explore the role of quantum entanglement in this mechanism. In this paper we study the lifetime of radical-pair entanglement corresponding to the magnitude and direction of magnetic fields to show that the entanglement lasts long enough in birds to be used for navigation. We also find that the birds appear to not be able to orient themselves directly based on radical-pair entanglement due to a lack of orientation sensitivity of the entanglement in the geomagnetic field. To explore the entanglement mechanism further, we propose a model in which the hyperfine interactions are replaced by local magnetic fields of similar strength. The entanglement of the radical pair in this model lasts longer and displays an angular sensitivity in weak magnetic fields, both of which are not present in previous models.
C1 [Pauls, James A.] Goshen Coll, Goshen, IN 46526 USA.
[Zhang, Yiteng] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Berman, Gennady P.] Los Alamos Natl Lab, Div Theoret, MS B 213, Los Alamos, NM 87545 USA.
[Kais, Sabre] Purdue Univ, Dept Chem, Dept Phys, W Lafayette, IN 47907 USA.
[Kais, Sabre] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA.
[Kais, Sabre] Qatar Fdn, Qatar Environm & Energy Res Inst, Doha, Qatar.
RP Pauls, JA (reprint author), Goshen Coll, Goshen, IN 46526 USA.
EM kais@purdue.edu
OI Kais, Sabre/0000-0003-0574-5346
FU NSF Center for Quantum Information for Quantum Chemistry [CHE-1037992];
National Nuclear Security Administration of the US Department of Energy
at Los Alamos National Laboratory [DE-AC52-06NA25396]
FX We would like to thank the NSF Center for Quantum Information for
Quantum Chemistry for financial support through Award No. CHE-1037992.
The work by G.P.B. was carried out under the auspices of the National
Nuclear Security Administration of the US Department of Energy at Los
Alamos National Laboratory under Contract No. DE-AC52-06NA25396.
NR 24
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 11
PY 2013
VL 87
IS 6
AR 062704
DI 10.1103/PhysRevE.87.062704
PG 5
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 161JS
UT WOS:000320189700002
PM 23848712
ER
PT J
AU Baylor, LR
Commaux, N
Jernigan, TC
Brooks, NH
Combs, SK
Evans, TE
Fenstermacher, ME
Isler, RC
Lasnier, CJ
Meitner, SJ
Moyer, RA
Osborne, TH
Parks, PB
Snyder, PB
Strait, EJ
Unterberg, EA
Loarte, A
AF Baylor, L. R.
Commaux, N.
Jernigan, T. C.
Brooks, N. H.
Combs, S. K.
Evans, T. E.
Fenstermacher, M. E.
Isler, R. C.
Lasnier, C. J.
Meitner, S. J.
Moyer, R. A.
Osborne, T. H.
Parks, P. B.
Snyder, P. B.
Strait, E. J.
Unterberg, E. A.
Loarte, A.
TI Reduction of Edge-Localized Mode Intensity Using High-Repetition-Rate
Pellet Injection in Tokamak H-Mode Plasmas
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DIII-D TOKAMAK; CONFINEMENT; TRANSPORT; DIVERTOR; SOL
AB High repetition rate injection of deuterium pellets from the low-field side (LFS) of the DIII-D tokamak is shown to trigger high-frequency edge-localized modes (ELMs) at up to 12X the low natural ELM frequency in H-mode deuterium plasmas designed to match the ITER baseline configuration in shape, normalized beta, and input power just above the H-mode threshold. The pellet size, velocity, and injection location were chosen to limit penetration to the outer 10% of the plasma. The resulting perturbations to the plasma density and energy confinement time are thus minimal (< 10%). The triggered ELMs occur at much lower normalized pedestal pressure than the natural ELMs, suggesting that the pellet injection excites a localized high-n instability. Triggered ELMs produce up to 12X lower energy and particle fluxes to the divertor, and result in a strong decrease in plasma core impurity density. These results show for the first time that shallow, LFS pellet injection can dramatically accelerate the ELM cycle and reduce ELM energy fluxes on plasma facing components, and is a viable technique for real-time control of ELMs in ITER.
C1 [Baylor, L. R.; Commaux, N.; Jernigan, T. C.; Combs, S. K.; Isler, R. C.; Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Brooks, N. H.; Evans, T. E.; Osborne, T. H.; Parks, P. B.; Snyder, P. B.; Strait, E. J.] Gen Atom Co, San Diego, CA 92186 USA.
[Fenstermacher, M. E.; Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Moyer, R. A.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Loarte, A.] ITER Org, F-13115 St Paul Les Durance, France.
RP Baylor, LR (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI Unterberg, Ezekial/F-5240-2016;
OI Unterberg, Ezekial/0000-0003-1353-8865; Isler, Ralph/0000-0002-5368-7200
FU Oak Ridge National Laboratory; U.S. Department of Energy
[DE-AC05-00OR22725, DEAC0500OR54698, DE-FG03-095ER54309,
DE-FC02-04ER54698, AC52-07NA27344, DE-FG02-07ER54917]
FX This work was supported by the Oak Ridge National Laboratory managed by
UT-Battelle, LLC for the U.S. Department of Energy under Contracts No.
DE-AC05-00OR22725, No. DEAC0500OR54698, No. DE-FG03-095ER54309, No.
DE-FC02-04ER54698, No. AC52-07NA27344, and No. DE-FG02-07ER54917. The
authors also thank S. Milora, J. Harris, P. Lang, and T. Taylor for
enlightening discussions and support and the DIII-D team for operating
the experiment. The views and opinions expressed herein do not
necessarily reflect those of the ITER Organization.
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PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 11
PY 2013
VL 110
IS 24
AR 245001
DI 10.1103/PhysRevLett.110.245001
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 162RJ
UT WOS:000320282600008
PM 25165932
ER
PT J
AU Cumming, JB
AF Cumming, J. B.
TI Temperature dependence of light absorption by water
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Water; Optical absorption; Temperature coefficient
ID PURE WATER; SPECTRUM; HOD
AB A model is described that relates the temperature coefficient of the optical absorption spectrum of pure water to the frequency derivative of that spectrum and two parameters that quantify the dependence of a peak's amplitude and its position on temperature. When applied to experimental temperature coefficients, it provides a better understanding of the process than the analysis currently in use. (C) 2013 Elsevier B.V. All rights reserved.
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Cumming, JB (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM cumming@bnl.gov
RI Cumming, James/I-3358-2013
OI Cumming, James/0000-0001-6930-0958
FU U.S. Department of Energy's Offices of Nuclear Physics and High Energy
Physics [DE-AC02-98CH10886]
FX The author wishes to thank M. Smy for communicating his unpublished
results. This work, conducted at Brookhaven National Laboratory, was
supported by the U.S. Department of Energy's Offices of Nuclear Physics
and High Energy Physics, under Contract DE-AC02-98CH10886.
NR 12
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U1 2
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 11
PY 2013
VL 713
BP 1
EP 4
DI 10.1016/j.nima.2013.02.024
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 148IZ
UT WOS:000319239300001
ER
PT J
AU Detert, DM
Lim, SHM
Tom, K
Luce, AV
Anders, A
Dubon, OD
Yu, KM
Walukiewicz, W
AF Detert, D. M.
Lim, S. H. M.
Tom, K.
Luce, A. V.
Anders, A.
Dubon, O. D.
Yu, K. M.
Walukiewicz, W.
TI Crystal structure and properties of CdxZn1-xO alloys across the full
composition range
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID III-NITRIDE ALLOYS; FILMS; TRANSPARENT; SEMICONDUCTORS; INN
AB We have synthesized CdxZn1-xO alloys across the full composition range. The structural mismatch of the two endpoint compounds splits the alloy into two regions of distinct optical and electrical behavior. The wurtzite phase alloys at compositions 03 at
Ames Laboratory. Work at ORNL was supported by the US Department of
Energy, Basic Energy Sciences, Materials Sciences and Engineering
Division (J.Q.Y., M. A. M., B. C. S., and D. G. M.) and the Scientific
User Facilities Division (H. B. C.). The use of beamline 11-ID-C at the
Advanced Photon Source at Argonne National Laboratory was supported by
the US Department of Energy, Office of Basic Energy Sciences under
Contract No. DE-AC02-06CH11357.
NR 22
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U1 0
U2 16
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 10
PY 2013
VL 87
IS 22
AR 224404
DI 10.1103/PhysRevB.87.224404
PG 8
WC Physics, Condensed Matter
SC Physics
GA 161BD
UT WOS:000320164500006
ER
PT J
AU Aad, G
Abajyan, T
Abbott, B
Abdallah, J
Khalek, SA
Abdelalim, AA
Abdinov, O
Aben, R
Abi, B
Abolins, M
Abi, B
Abolins, M
AbouZeid, OS
Abramowicz, H
Abreu, H
Acharya, BS
Adamczyk, L
Adams, DL
Addy, TN
Adelman, J
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, JA
Agustoni, M
Ahlen, SP
Ahles, F
Ahmad, A
Ahsan, M
Aielli, G
Akesson, TPA
Akimoto, G
Akimov, AV
Alam, MA
Albert, J
Albrand, S
Aleksa, M
Aleksandrov, IN
Alessandria, F
Alexa, C
Alexander, G
Alexandre, G
Alexopoulos, T
Alhroob, M
Aliev, M
Alimonti, G
Alison, J
Allbrooke, BMM
Allison, LJ
Allport, PP
Allwood-Spiers, SE
Almond, J
Aloisio, A
Alon, R
Alonso, A
Alonso, F
Altheimer, A
Gonzalez, BA
Alviggi, MG
Amako, K
Amelung, C
Ammosov, VV
Dos Santos, SPA
Amorim, A
Amoroso, S
Amram, N
Anastopoulos, C
Ancu, LS
Andari, N
Andeen, T
Anders, CF
Anders, G
Anderson, KJ
Andreazza, A
Andrei, V
Andrieux, ML
Anduaga, XS
Angelidakis, S
Anger, R
Angerami, A
Anghinolfi, F
Anisenkov, A
Anjos, N
Annovi, A
Antonaki, A
Antonelli, M
Antonov, A
Antos, J
Anulli, F
Aoki, M
Aoun, S
Bella, LA
Apolle, R
Arabidze, G
Aracena, I
Arai, Y
Arce, ATH
Arfaoui, S
Arguin, JF
Argyropoulos, S
Arik, E
Arik, M
Armbruster, AJ
Arnaez, O
Arnal, V
Artamonov, A
Artoni, G
Arutinov, D
Asai, S
Ask, S
Asman, B
Asquith, L
Assamagan, K
Astbury, A
Atkinson, M
Aubert, B
Auge, E
Augsten, K
Aurousseau, M
Avolio, G
Axen, D
Azuelos, G
Azuma, Y
Baak, MA
Baccaglioni, G
Bacci, C
Bach, AM
Bachacou, H
Bachas, K
Backes, M
Backhaus, M
Mayes, JB
Badescu, E
Bagnaia, P
Bai, Y
Bailey, DC
Bain, T
Baines, JT
Baker, OK
Baker, S
Balek, P
Banas, E
Banerjee, P
Banerjee, S
Banfi, D
Bangert, A
Bansal, V
Bansil, HS
Barak, L
Baranov, SP
Barber, T
Barberio, EL
Barberis, D
Barbero, M
Bardin, DY
Barillari, T
Barisonzi, M
Barklow, T
Barlow, N
Barnett, BM
Barnett, RM
Baroncelli, A
Barone, G
Barr, AJ
Barreiro, F
da Costa, JBG
Bartoldus, R
Barton, AE
Bartsch, V
Basye, A
Bates, RL
Batkova, L
Batley, JR
Battaglia, A
Battistin, M
Bauer, F
Bawa, HS
Beale, S
Beau, T
Beaucheminm, PH
Beccherle, R
Bechtle, P
Beck, HP
Becker, K
Becker, S
Beckingham, M
Becks, KH
Beddall, AJ
Beddall, A
Bedikian, S
Bednyakov, VA
Bee, CP
Beemster, LJ
Begel, M
Harpaz, SB
Behera, PK
Beimforde, M
Belanger-Champagne, C
Bell, PJ
Bell, WH
Bella, G
Bellagamba, L
Bellomo, M
Belloni, A
Beloborodova, O
Belotskiy, K
Beltramello, O
Benary, O
Benchekroun, D
Bendtz, K
Benekos, N
Benhammou, Y
Noccioli, EB
Garcia, JAB
Benjamin, DP
Benoit, M
Bensinger, JR
Benslama, K
Bentvelsen, S
Berge, D
Kuutmann, EB
Berger, N
Berghaus, F
Berglund, E
Beringer, J
Bernat, P
Bernhard, R
Bernius, C
Berry, T
Bertella, C
Bertin, A
Bertolucci, F
Besana, MI
Besjes, GJ
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CA ATLAS Collaboration
TI Search for a heavy narrow resonance decaying to e mu, e tau, or mu tau
with the ATLAS detector in root s=7 TeV pp collisions at the LHC
SO PHYSICS LETTERS B
LA English
DT Article
ID NUMBER-NONCONSERVATION; GAUGE THEORIES; LEPTONS
AB This Letter presents the results of a search for a heavy particle decaying into an e(+/-)mu(+/-), e(+/-)tau(+/-), or mu(+/-)tau(+/-) final state in pp collisions at root s = 7 TeV. The data were recorded with the ATLAS detector at the LHC during 2011 and correspond to an integrated luminosity of 4.6 fb(-1). No significant excess above the Standard Model expectation is observed, and exclusions at 95% confidence level are placed on the cross section times branching ratio for the production of an R-parity-violating supersymmetric tau sneutrino. For a sneutrino mass of 500 (2000) GeV, the observed limits on the production cross section times branching ratio are 3.2 (1.4) fb, 42 (17) fb, and 40 (18) fb for the e mu, e tau, and mu tau modes, respectively. These results considerably extend constraints from Tevatron experiments. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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[Ask, S.; Barlow, N.; Batley, J. R.; Brochu, E. M.; Buttinger, W.; Carter, J. R.; Chapman, J. D.; French, S. T.; Frost, J. A.; Gillam, T. P. S.; Hill, J. C.; Kaneti, S.; Khoo, T. J.; Lester, C. G.; Moeller, V.; Parker, M. A.; Robinson, D.; Sandoval, T.; Thomson, M.; Ward, C. P.; Williams, S.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Koffas, T.; Lacey, J.; Marchand, J. F.; McCarthy, T. G.; Oakham, F. G.; Randrianarivony, K.; Tarrade, F.; Ueno, R.; Vincter, M. G.; Whalen, K.] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada.
[Aleksa, M.; Anastopoulos, C.; Anghinolfi, F.; Avolio, G.; Baak, M. A.; Banfi, D.; Battistin, M.; Bellomo, M.; Beltramello, O.; Berge, D.; Bianchi, R. M.; Bogaerts, J. A.; Boyd, J.; Bremer, J.; Burckhart, H.; Byszewski, M.; Campana, S.; Garrido, M. D. M. Capeans; Carli, T.; Catinaccio, A.; Catmore, J. R.; Cattai, A.; Barajas, C. A. Chavez; Childers, J. T.; Chromek-Burckhart, D.; Cote, D.; Danielsson, H. O.; Dell'Acqua, A.; Di Girolamo, A.; Di Girolamo, B.; Di Micco, B.; Dittus, E.; Dobos, D.; Dobson, E.; Dopke, J.; Dudarev, A.; Duehrssen, M.; Ellis, N.; Elsing, M.; Fabre, C.; Farthouat, P.; Fassnacht, P.; Francis, D.; Franz, S.; Froidevaux, D.; Gabaldon, C.; Garonne, V.; Gianotti, F.; Gibson, S. M.; Gillberg, D.; Godlewski, J.; Goossens, L.; Gorini, B.; Gray, H. M.; Haas, S.; Hahn, F.; Hauschild, M.; Hawkings, R. J.; Heller, M.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Hubacek, Z.; Huhtinen, M.; Jaekel, M. R.; Jansen, H.; Jenni, P.; Joram, C.; Jungst, R. M.; Kaneda, M.; Kerschen, N.; Klioutchnikova, T.; Koeneke, K.; Lantzsch, K.; Lassnig, M.; Miotto, G. Lehmann; Lenzi, B.; Lichard, P.; Macina, D.; Malyukov, S.; Mapelli, A.; Mapelli, L.; Marshall, Z.; Martin, B.; Messina, A.; Michal, S.; Molfetas, A.; Morley, A. K.; Mornacchi, G.; Muenstermann, D.; Nairz, A. M.; Nakahama, Y.; Negri, G.; Nessi, M.; Nicquevert, B.; Nordberg, M.; Ohm, C. C.; Palestini, S.; Pauly, T.; Pernegger, H.; Peters, K.; Petersen, B. A.; Petersen, J.; Piacquadio, G.; Pommes, K.; Poppleton, A.; Bueso, X. Portell; Poulard, G.; Prasad, S.; Raymond, M.; Rembser, C.; Dos Santos, D. Roda; Roe, S.; Salek, D.; Salzburger, A.; Savu, D. O.; Schlenker, S.; Schott, M.; Serfon, C.; Sfyrla, A.; Solans, C. A.; Spigo, G.; Spiwoks, R.; Stewart, G. A.; Teischinger, F. A.; Ten Kate, H.; Tremblet, L.; Tricoli, A.; Tsarouchas, C.; Unal, G.; van der Ster, D.; van Eldik, N.; Vandelli, W.; Veness, R.; Vinek, E.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Winklmeier, E.; Wotschack, J.; Zwalinski, L.] CERN, Geneva, Switzerland.
[Anderson, K. J.; Boveia, A.; Canelli, E.; Cheng, Y.; Choudalakis, G.; Fiascaris, M.; Gardner, R. W.; Plante, I. Jen-La; Kapliy, A.; Li, H. L.; Meehan, S.; Melachrinos, C.; Merritt, F. S.; Meyer, C.; Miller, D. W.; Okumura, Y.; Onyisil, P. U. E.; Oreglia, M. J.; Penning, B.; Pilcher, J. E.; Shochet, M. J.; Tompkins, L.; Tuggle, J. M.; Vukotic, I.; Webster, J. S.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Diaz, M. A.; Pino, S. A. Olivares] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile.
[Brooks, W. K.; Carquin, E.; Kuleshov, S.; Pezoa, R.; Prokoshin, F.] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile.
[Bai, Y.; Fang, Y.; Jin, S.; Lu, F.; Ouyang, Q.; Ruan, X.; Shan, L. Y.; Wang, J.; Xu, D.; Yao, L.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China.
[Han, L.; Jiang, Y.; Li, B.; Li, S.; Liu, J. B.; Liu, M.; Liu, Y.; Peng, H.; Wu, Y.; Xu, C.; Xu, L.; Zhao, Z.; Zhu, Y.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China.
[Chen, S.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China.
[Feng, C.; Ge, P.; Zhang, X.; Zhu, C. G.] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China.
[Yang, H.] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Dubreuil, E.; Ghodbane, N.; Gris, Ph.; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Valery, L.; Vazeille, F.] Univ Clermont Ferrand, Phys Corpusculaire Lab, Clermont Ferrand, France.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Dubreuil, E.; Ghodbane, N.; Gris, Ph.; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Valery, L.; Vazeille, F.] Univ Clermont Ferrand, Clermont Ferrand, France.
[Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Donini, J.; Dubreuil, E.; Ghodbane, N.; Gris, Ph.; Guicheney, C.; Liao, H.; Pallin, D.; Hernandez, D. Paredes; Podlyski, F.; Santoni, C.; Valery, L.; Vazeille, F.] Univ Clermont Ferrand, Photochim Mol & Macromol Lab, CNRS, IN2P3, F-63177 Clermont Ferrand, France.
[Altheimer, A.; Andeen, T.; Angerami, A.; Bain, T.; Brooijmans, G.; Chen, Y.; Dodd, J.; Guo, J.; Hu, D.; Hughes, E. W.; Nikiforou, N.; Parsons, J. A.; Penson, A.; Perez, K.; Reale, V. Perez; Scherzer, M. I.; Spousta, M.; Thompson, E. N.; Tian, F.; Tuts, P. M.; Urbaniec, D.; Williams, E.; Willis, W.; Wulf, E.; Zivkovic, L.] Columbia Univ, Nevis Lab, Irvington, NY USA.
[Boelaert, N.; Dam, M.; Gregersen, K.; Hansen, J. R.; Hansen, J. B.; Hansen, J. D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Klinkby, E. B.; Lundquist, J.; Mackeprang, R.; Mehlhase, S.; Petersen, T. C.; Pingel, A.; Simonyan, M.; Thomsen, L. A.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
[Capua, M.; Crosetti, G.; La Rotonda, L.; Lavorini, V.; Mastroberardino, A.; Morello, G.; Policicchio, A.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Ist Nazl Fis Nucl, Grp Collegato Cosenza, Arcavacata Di Rende, Italy.
[Capua, M.; Crosetti, G.; La Rotonda, L.; Lavorini, V.; Mastroberardino, A.; Morello, G.; Policicchio, A.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy.
[Adamczyk, L.; Bold, T.; Dabrowski, W.; Dwuznik, M.; Grabowska-Bold, I.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Przybycien, M.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Banas, E.; Blocki, J.; de Renstrom, P. A. Bruckman; Derendarz, D.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Korcyl, K.; Malecki, Pa.; Malecki, P.; Olszewski, A.; Olszowska, J.; Stanecka, E.; Staszewski, R.; Trzebinski, M.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Wozniak, K. W.; Zabinski, B.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Yagci, K. Dindar; Firan, A.; Hoffman, J.; Joffe, D.; Kama, S.; Kehoe, R.; Randle-Conde, A. S.; Rios, R. R.; Sekula, S. J.; Stroynowski, R.; Wang, H.; Ye, J.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA.
[Ahsan, M.; Izen, J. M.; Lou, X.; Namasivayam, H.; Reeves, K.; Wong, W. C.] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA.
[Argyropoulos, S.; Kuutmann, E. Bergeaas; Bloch, I.; Borroni, S.; Dassoulas, J. A.; Dietrich, J.; Ferrara, V.; Fischer, G.; Friedrich, C.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Da Costa, J. Goncalves Pinto Firmino; Grahn, K. -J.; Gregor, I. M.; Grohsjean, A.; Hiller, K. H.; Huettmann, A.; Belenguer, M. Jimenez; Johnert, S.; Katzy, J.; Kono, T.; Kuh, T.; Lange, C.; Lobodzinska, E.; Ludwig, D.; Mattig, S.; Medinnis, M.; Monig, K.; Naumann, T.; Cavalcanti, T. Perez; Petschull, D.; Piec, S. M.; Radescu, V.; Rubinskiy, I.; Sedov, G.; South, D.; Stanescu-Bellu, M.; Stanitzki, M. M.; Starovoitov, P.; Styles, N. A.; Tackmann, K.; Vankov, P.; Viti, M.; Wasicki, C.; Wildt, M. A.; Yatsenko, E.; Zhu, H.] DESY, Hamburg, Germany.
[Bunse, M.; Esch, H.; Goessling, C.; Hirsch, F.; Jung, C. A.; Klingenberg, R.; Reisinger, I.] Tech Univ Dortmund, Inst Expt Phys 4, Dortmund, Germany.
[Anger, R.; Czodrowski, P.; Friedrich, F.; Gopfert, T.; Kobel, M.; Leonhardt, K.; Mader, W. F.; Morgenstern, M.; Prudent, X.; Rudolph, C.; Schnoor, U.; Seifert, R.; Steinbach, P.; Straessner, A.; Vest, A.; Wahrmund, S.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany.
[Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Ko, B. R.; Kotwal, A.; Kruse, M. K.; Oh, S. H.; Wang, C.] Duke Univ, Dept Phys, Durham, NC 27706 USA.
[Bhimji, W.; Buckley, A. G.; Clark, P. J.; Debenedetti, C.; Harrington, R. D.; Martin, V. J.; O'Brien, B. J.; Schaelicke, A.; Selbach, K. E.; Smart, B. H.; Washbrook, A.; Wynne, B. M.] Univ Edinburgh, SUPA Sch Phys & Astron, Edinburgh, Midlothian, Scotland.
[Annovi, A.; Antonelli, M.; Bilokon, H.; Curatolo, M.; Di Nardo, R.; Esposito, B.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Sansoni, A.; Testa, M.; Vilucchi, E.; Volpi, G.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Aad, G.; Ahles, F.; Amoroso, S.; Barber, T.; Bernhard, R.; Boehler, M.; Bruneliere, R.; Christov, A.; Consorti, V.; Fehling-Kaschek, M.; Flechl, M.; Hartert, J.; Herten, G.; Horner, S.; Jakobs, K.; Janus, M.; Kononov, A. I.; Kopp, A. K.; Kuehn, S.; Lai, S.; Landgraf, U.; Lohwasser, K.; Ludwig, I.; Ludwig, J.; Mahboubi, K.; Mohr, W.; Nilsen, H.; Parzefall, U.; Rammensee, M.; Rave, T. C.; Rurikova, Z.; Ruthmann, N.; Schmidt, E.; Schumacher, M.; Siegert, F.; Stoerig, K.; Sundermann, J. E.; Temming, K. K.; Thoma, S.; Tsiskaridze, V.; Venturi, M.; Vivarelli, I.; von Radziewski, H.; Anh, T. Vu; Warsinsky, M.; Weiser, C.; Werner, M.; Winkelmann, S.; Xie, S.; Zimmermann, S.] Univ Freiburg, Fak Math & Phys, D-79106 Freiburg, Germany.
[Abdelalim, A. A.; Alexandre, G.; Backes, M.; Barone, G.; Bell, P. J.; Bell, W. H.; Noccioli, E. Benhar; Bucci, F.; Clark, A.; Doglioni, C.; Ferrere, D.; Gadomski, S.; Gonzalez-Sevilla, S.; Goulette, M. P.; Iacobucci, G.; La Rosa, A.; Lister, A.; Latour, B. Martin dit; Mermod, P.; Herrera, C. Mora; Nektarijevic, S.; Nessi, M.; Nikolics, K.; Pasztor, G.; Picazio, A.; Pohl, M.; Rosbach, K.; Rosselet, L.; Wu, X.] Univ Geneva, Sect Phys, Geneva, Switzerland.
[Barberis, D.; Beccherle, R.; Caso, C.; Dameri, M.; Darbo, G.; Parodi, A. Ferretto; Gagliardi, G.; Gemme, C.; Guido, E.; Morettini, P.; Osculati, B.; Parodi, F.; Passaggio, S.; Rossi, L. P.; Schiavi, C.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy.
[Barberis, D.; Caso, C.; Dameri, M.; Parodi, A. Ferretto; Gagliardi, G.; Guido, E.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy.
[Chikovani, L.; Tskhadadze, E. G.] Iv Javakhishvili Tbilisi State Univ, E Andronikashvili Inst Phys, Tbilisi, Rep of Georgia.
[Djobava, T.; Khubua, J.; Mchedlidze, G.; Mosidze, M.] Tbilisi State Univ, Inst High Energy Phys, Tbilisi, Rep of Georgia.
[Dueren, M.; Kreutzfeldt, K.; Stenzel, H.] Univ Giessen, Inst Phys 2, Giessen, Germany.
[Allwood-Spiers, S. E.; Bates, R. L.; Britton, D.; Bussey, P.; Buttar, C. M.; Collins-Tooth, C.; D'Auria, S.; Doherty, T.; Doyle, A. T.; Edwards, N. C.; Ferrag, S.; Ferrando, J.; de Lima, D. E. Ferreira; Gemmell, A.; Gul, U.; Kar, D.; Kenyon, M.; Moraes, A.; O'Shea, V.; Barrera, C. Oropeza; Robson, A.; Saxon, D. H.; Smith, K. M.; Denis, R. D. St.; Steele, G.; Thompson, A. S.; Wraight, K.; Wright, M.] Univ Glasgow, SUPA Sch Phys & Astron, Glasgow, Lanark, Scotland.
[Bierwagen, K.; Blumenschein, U.; Brandt, O.; Evangelakou, D.; George, M.; Grosse-Knetter, J.; Guindon, S.; Hamer, M.; Hensel, C.; Keil, M.; Knue, A.; Kohn, F.; Krieger, N.; Kroeninger, K.; Lemmer, B.; Magradze, E.; Meyer, J.; Morel, J.; Nackenhorst, O.; Pashapour, S.; Quadt, A.; Roe, A.; Schorlemmer, A. L. S.; Serkin, L.; Shabalina, E.; Schroeder, T. Vazquez; Weingarten, J.] Univ Gottingen, Inst Phys 2, Gottingen, Germany.
[Albrand, S.; Andrieux, M. -L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, Grenoble, France.
[Albrand, S.; Andrieux, M. -L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] CNRS, IN2P3, Grenoble, France.
[Albrand, S.; Andrieux, M. -L.; Buat, Q.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; Dechenaux, B.; Delemontex, T.; Delsart, P. A.; Genest, M. H.; Hostachy, J. -Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Stark, J.; Sun, X.; Trocme, B.; Weydert, C.] Inst Natl Polytech Grenoble, F-38031 Grenoble, France.
[Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[da Costa, J. Barreiro Guimaraes; Belloni, A.; Catastini, P.; Conti, G.; Franklin, M.; Huth, J.; Jeanty, L.; Kagan, M.; Mateos, D. Lopez; Outschoorn, V. Martinez; Mercurio, K. M.; Mills, C.; Morii, M.; Skottowe, H. P.; Smith, B. C.; Yen, A. L.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA.
[Anders, G.; Andrei, V.; Davygora, Y.; Dunford, M.; Geweniger, C.; Hanke, P.; Henke, M.; Khomich, A.; Kluge, E. -E.; Lang, V. S.; Lendermann, V.; Lepold, F.; Meier, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, D-69115 Heidelberg, Germany.
[Anders, C. F.; Karnevskiy, M.; Kasieczka, G.; Narayan, R.; Schaetzel, S.; Schmitt, S.; Schoening, A.] Heidelberg Univ, Inst Phys, D-69115 Heidelberg, Germany.
[Kugel, A.; Schroer, N.] Heidelberg Univ, ZIT1 Inst Tech Informat, Mannheim, Germany.
[Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan.
[Brunet, S.; Cwetanski, P.; Evans, H.; Gagnon, R.; Luehring, F.; Ogren, H.; Penwell, J.; Poveda, J.; Price, D.; Whittington, D.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Epp, B.; Jussel, P.; Kneringer, E.; Lukas, W.; Ritsch, E.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria.
[Behera, P. K.; Halladjian, G.; Limper, M.; Mallik, U.; Mandrysch, R.; Pylypchenko, Y.; Zaidan, R.] Univ Iowa, Iowa City, IA USA.
[Chen, C.; Cochran, J.; De Lorenzi, F.; Dudziak, F.; Krumnack, N.; Prell, S.; Ruiz-Martinez, A.; Shrestha, S.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA.
[Aleksandrov, I. N.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Huseynov, N.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khramov, E.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Minashvili, A.; Mineev, M.; Olchevski, A. G.; Peshekhonov, V. D.; Plotnikova, E.; Pozdnyakov, V.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Shiyakova, M.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.; Zhemchugov, A.; Zimin, N. I.] Joint Inst Nucl Res Dubna, Dubna, Russia.
[Amako, K.; Arai, Y.; Doi, Y.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Manabe, A.; Mitsui, S.; Nagano, K.; Nakamura, K.; Nozaki, M.; Odaka, S.; Sasaki, O.; Suzuki, Y.; Takubo, Y.; Tanaka, S.; Terada, S.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] Natl Lab High Energy Phys, KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan.
[Hayakawa, T.; King, M.; Kishimoto, T.; Kitamura, T.; Kurashige, H.; Matsushita, T.; Ochi, A.; Suzuki, Y.; Takeda, H.; Tani, K.; Watanabe, I.; Yamazaki, Y.; Yuan, L.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan.
[Ishino, M.; Sasao, N.; Sumida, T.] Kyoto Univ, Fac Sci, Kyoto, Japan.
[Takashima, R.] Kyoto Univ, Kyoto 612, Japan.
[Kawagoe, K.; Oda, S.; Tojo, J.] Kyushu Univ, Dept Phys, Fukuoka 812, Japan.
[Alonso, F.; Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, Inst Fis La Plata, La Plata, Buenos Aires, Argentina.
[Alonso, F.; Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Consejo Nacl Invest Cient & Tecn, La Plata, Buenos Aires, Argentina.
[Allison, L. J.; Barton, A. E.; Borissov, G.; Bouhova-Thacker, E. V.; Chilingarov, A.; Davidson, R.; Dearnaley, W. J.; Fox, H.; Grimm, K.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Maddocks, H. J.; Smizanska, M.; Walder, J.; Yorita, K.] Univ Lancaster, Dept Phys, Lancaster, England.
[Bianco, M.; Cataldi, G.; Chiodini, G.; Gorini, E.; Grancagnolo, F.; Orlando, N.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy.
[Bianco, M.; Gorini, E.; Orlando, N.; Spagnolo, S.; Ventura, A.] Univ Salento, Dept Matemat & Fis, I-73100 Lecce, Italy.
[Allport, P. P.; Bundock, A. C.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Mahmoud, S.; Maxfield, S. J.; Mehta, A.; Migas, S.; Price, J.; Schnellbach, Y. J.; Sellers, G.; Vossebeld, J. H.; Waller, R.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England.
[Cindro, V.; Deliyergiyev, M.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikurz, M.; Tykhonov, A.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia.
[Cindro, V.; Deliyergiyev, M.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikurz, M.; Tykhonov, A.] Univ Ljubljana, Ljubljana, Slovenia.
[Adragna, P.; Bona, M.; Carter, A. A.; Cerrito, L.; Eisenhandler, E.; Ellis, K.; Fletcher, G.; Goddard, J. R.; Hickling, R.; Landon, M. P. J.; Lloyd, S. L.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Salamanna, G.; Castanheira, M. Teixeira Dias; Wiglesworth, C.] Univ London, Sch Phys & Astron, London, England.
[Alam, M. A.; Berry, T.; Boisvert, V.; Brooks, T.; Cantrill, R.; Cowan, G.; Duguid, L.; Edwards, C. A.; George, S.; Goncalo, R.; Hayden, D.; Vazquez, J. G. Panduro; Pastore, Fr.; Rose, M.; Spano, F.; Strong, J. A.; Teixeira-Dias, P.] Royal Holloway Univ London, Dept Phys, Surrey, England.
[Baker, S.; Bernat, P.; Bieniek, S. P.; Butterworth, J. M.; Campanelli, M.; Chislett, R. T.; Christidi, I. A.; Cooper, B. D.; Davison, A. R.; Hesketh, G. G.; Jansen, E.; Konstantinidis, N.; Lambourne, L.; Monk, J.; Nash, M.; Nurse, E.; Prabhu, R.; Sherwood, P.; Simmons, B.; Taylor, C.; Wardrope, D. R.; Waugh, B. M.; Wijeratne, P. A.] UCL, Dept Phys & Astron, London, England.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, R.; Crescioli, E.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Malaescu, B.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] UPMC, Lab Phys Nucl & Hautes Energies, Paris, France.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, R.; Crescioli, E.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Malaescu, B.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] Univ Paris Diderot, Paris, France.
[Beau, T.; Bomben, M.; Bordoni, S.; Calderini, G.; Cavalleri, R.; Crescioli, E.; Davignon, O.; De Cecco, S.; Derue, F.; Krasny, M. W.; Kuna, M.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Malaescu, B.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Torres, H.; Trincaz-Duvoid, S.; Vannucci, F.] CNRS, IN2P3, Paris, France.
[Akesson, T. P. A.; Alonso, A.; Bocchetta, S. S.; Bryngemark, L.; Floderus, A.; Hawkins, A. D.; Hedberg, V.; Jarlskog, G.; Lundberg, B.; Lytken, E.; Meirose, B.; Mjornmark, J. U.; Smirnova, O.] Lund Univ, Inst Fys, Lund, Sweden.
[Arnal, V.; Barreiro, F.; Cantero, J.; De la Torre, H.; Del Peso, J.; Glasman, C.; Labarga, L.; Merino, J. Llorente; Terron, J.] Univ Autonoma Madrid, Dept Fis Teor C 15, Madrid, Spain.
[Arnaez, O.; Blum, W.; Buscher, V.; Caputo, R.; Eckweiler, S.; Ellinghaus, F.; Ertel, E.; Fiedler, F.; Fleckner, J.; Goeringer, C.; Handel, C.; Hohlfeld, M.; Hsu, P. J.; Ji, W.; Kawamura, G.; Kleinknecht, K.; Koenig, S.; Koepke, L.; Lungwitz, M.; Masetti, L.; Meyer, C.; Moreno, D.; Mueller, T.; Neusiedl, A.; Sander, H. G.; Schafer, U.; Schmitt, C.; Schroeder, C.; Simioni, E.; Tapprogge, S.; Wollstadt, S. J.] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
[Almond, J.; Borri, M.; Brown, G.; Chavda, V.; Cox, B. E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Howarth, J.; Ibbotson, M.; Joshi, K. D.; Klinger, J. A.; Loebinger, F. K.; Marx, M.; Masik, J.; Neep, T. J.; Oh, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Robinson, J. E. M.; Snow, S. W.; Watts, S.; Woudstra, M. J.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England.
[Aoun, S.; Bee, C. P.; Bertella, C.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Djama, F.; Etienne, F.; Feligioni, L.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Maurer, J.; Monnier, E.; Nagai, Y.; Odier, J.; Pralavorio, P.; Rozanov, A.; Serre, T.; Talby, M.; Tannoury, N.; Tiouchichine, E.; Tisserant, S.; Toth, J.; Touchard, F.; Ughetto, M.; Vacavant, L.] Univ Aix Marseille, CPPM, Marseille, France.
[Aoun, S.; Bee, C. P.; Bertella, C.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Djama, F.; Etienne, F.; Feligioni, L.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Le Guirriec, E.; Li, B.; Li, S.; Maurer, J.; Monnier, E.; Nagai, Y.; Odier, J.; Pralavorio, P.; Rozanov, A.; Serre, T.; Talby, M.; Tannoury, N.; Tiouchichine, E.; Tisserant, S.; Toth, J.; Touchard, F.; Ughetto, M.; Vacavant, L.] CNRS, IN2P3, Marseille, France.
[Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Paris, P.; Pueschel, E.; Varol, T.; Ventura, D.; Willocq, S.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA.
[Belanger-Champagne, C.; Chapleau, B.; Cheatham, S.; Corriveau, F.; Dobbs, M.; Dufour, M. -A.; Klemetti, M.; Mantifel, R.; Mc Donald, J.; Robertson, S. H.; Rios, C. Santamarina; Schram, M.; Stockton, M. C.; Stoebe, M.; Vachon, B.; Warburton, A.] McGill Univ, Dept Phys, Montreal, PQ, Canada.
[Barberio, E. L.; Davidson, N.; Diglio, S.; Hamano, K.; Jennens, D.; Kubota, T.; Limosani, A.; Moorhead, G. F.; Hanninger, G. Nunes; Phan, A.; Shao, Q. T.; Tan, K. G.; Taylor, G. N.; Thong, W. M.; Volpi, M.; White, M. J.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia.
[Armbruster, A. J.; Chapman, J. W.; Cirilli, M.; Dai, T.; Diehl, E. B.; Ferretti, C.; Goldfarb, S.; Harper, D.; Levin, D.; Li, X.; Liu, L.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Thun, R. P.; Walch, S.; Wilson, A.; Wooden, G.; Zhang, D.; Zhou, B.; Zhu, J.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Abolins, M.; Gonzalez, B. Alvarez; Arabidze, G.; Brock, R.; Bromberg, C.; Caughron, S.; Hauser, R.; Holzbauer, J. L.; Huston, J. J.; Koll, J.; Linnemann, J. T.; Martin, B.; Miller, R. J.; Oakes, L. B.; Pope, B. G.; Schwienhorst, R.; Stelzer, H. J.; Tollefson, K.; True, P.; Zhang, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Alessandria, F.; Alimonti, G.; Andreazza, A.; Baccaglioni, G.; Besana, M. I.; Broggi, F.; Carminati, L.; Cavalli, D.; Citterio, M.; Consonni, S. M.; Costa, G.; Fanti, M.; Favareto, A.; Giugni, D.; Koletsou, I.; Lari, T.; Mandelli, L.; Mazzanti, M.; Meloni, F.; Meroni, C.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Simoniello, R.; Tartarelli, G. F.; Troncon, C.; Turra, R.; Vegni, G.; Volpini, G.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy.
[Besana, M. I.; Carminati, L.; Consonni, S. M.; Fanti, M.; Favareto, A.; Meloni, F.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Simoniello, R.; Turra, R.; Vegni, G.] Univ Milan, Dipartimento Fis, Milan, Italy.
[Bogouch, A.; Harkusha, S.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk, Byelarus.
[Yanush, S.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus.
[Taylor, F. E.] MIT, Dept Phys, Cambridge, MA 02139 USA.
[Arguin, J. -F.; Azuelos, G.; Banerjee, P.; Bouchami, J.; Dallaire, F.; Davies, M.; Giunta, M.; Leroy, C.; Martin, J. P.; Soueid, P.] Univ Montreal, Grp Particle Phys, Montreal, PQ, Canada.
[Akimov, A. V.; Baranov, S. P.; Gavrilenko, I. L.; Komar, A. A.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P. Yu.; Shmeleva, A.; Snesarev, A. A.; Sulin, V. V.; Tikhomirov, V. O.] PN Lebedev Phys Inst, Acad Sci, Moscow 117924, Russia.
[Artamonov, A.; Gorbounov, P. A.; Khovanskiy, V.; Shatalov, P. B.; Tsukerman, I.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Antonov, A.; Belotskiy, K.; Bulekov, O.; Dolgoshein, B. A.; Kantserov, V. A.; Khodinov, A.; Romaniouk, A.; Shulga, E.; Smirnov, S. Yu.; Smirnov, Y.; Soldatov, E. Yu.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Gladilin, L. K.; Kramarenko, V. A.; Rud, V. I.; Sivoklokov, S. Yu.; Smirnova, L. N.] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow, Russia.
[Adomeit, S.; Beale, S.; Becker, S.; Biebel, O.; Bortfeldt, J.; Calfayan, P.; de Graat, J.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Heller, C.; Hertenberger, R.; Legger, F.; Lorenz, J.; Mann, A.; Muller, T. A.; Nunnemann, T.; Oakes, L. B.; Rauscher, F.; Reznicek, P.; Ruschke, A.; Sanders, M. P.; Schaile, D.; Schieck, J.; Staude, A.; Vladoiu, D.; Walker, R.; Will, J. Z.; Zhuang, X.; Zibell, A.] Univ Munich, Fak Phys, Munich, Germany.
[Barillari, T.; Beimforde, M.; Bethke, S.; Bittner, B.; Bronner, J.; Capriotti, D.; Compostella, G.; Cortiana, G.; Dubbert, J.; Flowerdew, M. J.; Giovannini, P.; Ince, T.; Jantsch, A.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Macchiolo, A.; Manfredini, A.; Menke, S.; Moser, H. G.; Nagel, M.; Nisius, R.; Oberlack, H.; Pahl, C.; Pospelov, G. E.; Potrap, I. N.; Richter, R.; Salihagic, D.; Sandstroem, R.; Schacht, P.; Schwegler, Ph.; Stern, S.; Stonjek, S.; Vanadia, M.; von der Schmitt, H.; Weigell, P.; Wildauer, A.; Zanzi, D.; Zhuravlov, V.] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst Phys, D-80805 Munich, Germany.
[Shimojima, M.] Nagasaki Inst Appl Sci, Nagasaki, Japan.
[Aoki, M.; Hasegawa, S.; Morvaj, L.; Ohshima, T.; Shimizu, S.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J. T.; Yamauchi, K.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan.
[Aoki, M.; Hasegawa, S.; Morvaj, L.; Ohshima, T.; Shimizu, S.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J. T.; Yamauchi, K.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648601, Japan.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Carlino, G.; Chiefaria, G.; Conventi, F.; De Asmundis, R.; Della Pietra, M.; della Volpe, D.; Di Donato, C.; Doria, A.; Giordano, R.; Lengo, P.; Izzo, V.; Merola, L.; Patricelli, S.; Sanchez, A.; Sekhniaidze, G.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy.
[Aloisio, A.; Alviggi, M. G.; Canale, V.; Chiefaria, G.; della Volpe, D.; Di Donato, C.; Giordano, R.; Merola, L.; Sanchez, A.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy.
[Gorelov, I.; Hoeferkamp, M. R.; Seidel, S. C.; Toms, K.; Wang, R.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Besjes, G. J.; Caron, S.; Chelstowska, M. A.; Dao, V.; De Groot, N.; Filthaut, F.; Klok, P. F.; Konig, A. C.; Koetsveld, F.; Raas, M.; Salvucci, A.] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 ED Nijmegen, Netherlands.
[Aben, R.; Beemster, L. J.; Bentvelsen, S.; Berglund, E.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; de Jong, P.; De Nooij, L.; Deluca, C.; Deviveiros, P. O.; Doxiadis, A. D.; Ferrari, P.; Gadatsch, S.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Klous, S.; Kluit, P.; Koffeman, E.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Mahlstedt, J.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Pani, P.; Ruckstuhl, N.; Ta, D.; Tsiakiris, M.; Van der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; Van der Leeuw, R.; van der Poel, E.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Milosavljevic, M. Vranjes; Vreeswijk, M.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Aben, R.; Beemster, L. J.; Bentvelsen, S.; Berglund, E.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Colijn, A. P.; de Jong, P.; De Nooij, L.; Deluca, C.; Deviveiros, P. O.; Doxiadis, A. D.; Ferrari, P.; Gadatsch, S.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Klous, S.; Kluit, P.; Koffeman, E.; Lee, H.; Lenz, T.; Linde, F.; Luijckx, G.; Mahlstedt, J.; Massaro, G.; Mechnich, J.; Mussche, I.; Ottersbach, J. P.; Pani, P.; Ruckstuhl, N.; Ta, D.; Tsiakiris, M.; Van der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; Van der Leeuw, R.; van der Poel, E.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Milosavljevic, M. Vranjes; Vreeswijk, M.] Univ Amsterdam, Amsterdam, Netherlands.
[Calkins, R.; Chakraborty, D.; Cole, S.; de Lima, J. G. Rocha; Suhr, C.; Yurkewicz, A.; Zutshi, V.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA.
[Anisenkov, A.; Beloborodova, O.; Bobrovnikov, V. S.; Bogdanchikov, A.; Kazanin, V. F.; Kolachev, G. M.; Korol, A.; Malyshev, V.; Maslennikov, A. L.; Maximov, D. A.; Peleganchuk, S. V.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.] Budker Inst Nucl Phys, SB RAS, Novosibirsk 630090, Russia.
[Budick, B.; Casadei, D.; Cranmer, K.; Haas, A.; van Huysduynen, L. Hooft; Kaplan, B.; Konoplich, R.; Krasznahorkay, A.; Kreiss, S.; Lewis, G. H.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Prokofiev, K.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA.
[Fisher, M. J.; Gan, K. K.; Ishmukhametov, R.; Kagan, H.; Kass, R. D.; Merritt, H.; Moss, J.; Nagarkar, A.; Pignotti, D. T.; Rahimi, A. M.; Strang, M.; Yang, Y.] Ohio State Univ, Columbus, OH 43210 USA.
[Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan.
[Abbott, B.; Gutierrez, P.; Jana, D. K.; Marzin, A.; Meera-Lebbai, R.; Norberg, S.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Abi, B.; Khanov, A.; Rizatdinova, F.; Yu, J.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
[Hamal, P.; Hrabovsky, M.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic.
[Brau, J. E.; Potter, C. T.; Ptacek, E.; Radloff, P.; Reinsch, A.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA.
[Khalek, S. Abdel; Andari, N.; Auge, E.; Benoit, M.; Binet, S.; Bourdarios, C.; De La Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Guillemin, T.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Martinez, N. Lorenzo; Lounis, A.; Makovec, N.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Scifo, E.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Zerwas, D.; Zhang, Z.] Univ Paris 11, LAL, Orsay, France.
[Khalek, S. Abdel; Andari, N.; Auge, E.; Benoit, M.; Binet, S.; Bourdarios, C.; De La Taille, C.; De Regie, J. B. De Vivie; Duflot, L.; Escalier, M.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Guillemin, T.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Martinez, N. Lorenzo; Lounis, A.; Makovec, N.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Scifo, E.; Serin, L.; Simion, S.; Tanaka, R.; Teinturier, M.; Veillet, J. J.; Zerwas, D.; Zhang, Z.] CNRS, IN2P3, F-91405 Orsay, France.
[Hanagaki, K.; Hirose, M.; Lee, J. S. H.; Meguro, T.; Nomachi, M.; Okamura, W.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan.
[Bugge, L.; Buran, T.; Cameron, D.; Gjelsten, B. K.; Gramstad, E.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Read, A. L.; Rohne, O.; Samset, B. H.; Smestad, L.; Stapnes, S.; Strandlie, A.] Univ Oslo, Dept Phys, Oslo, Norway.
[Apolle, R.; Barr, A. J.; Boddy, C. R.; Brandt, G.; Buchanan, J.; Buckingham, R. M.; Cooper-Sarkar, A. M.; Dafinca, A.; Davies, E.; Gallas, E. J.; Gwenlan, C.; Hall, D.; Hays, C. P.; Howard, J.; Huffman, T. B.; Issever, C.; King, R. S. B.; Kogan, L. A.; Korn, A.; Larner, A.; Lewis, A.; Liang, Z.; Livermore, S. S. A.; Mattravers, C.; Nickerson, R. B.; Pinder, A.; Robichaud-Veronneau, A.; Ryder, N. C.; Short, D.; Tseng, J. C-L.; Vickey, T.; Viehhauser, G. H. A.; Weidberg, A. R.; Whitehead, S. R.; Young, C. J.; Zhong, J.] Univ Oxford, Dept Phys, Oxford, England.
[Colombo, T.; Conta, C.; Ferrari, R.; Franchino, S.; Fraternali, M.; Gaudio, G.; Lanza, A.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimold, A.; Vercesi, V.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Colombo, T.; Conta, C.; Franchino, S.; Fraternali, M.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimold, A.] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy.
[Alison, J.; Brendlinger, K.; Degenhardt, J. J.; Dressnandt, N.; Fratina, S.; Heim, S.; Hines, E.; Hong, T. M.; Jackson, B.; Keener, P. T.; Kroll, J.; Kunkle, J.; Lester, C. M.; Lipeles, E.; Newcomer, F. M.; Olivito, D.; Ospanov, R.; Patricelli, S.; Reece, R.; Saxon, J.; Schaefer, D.; Stahlman, J.; Thomson, E.; Van Berg, R.; Williams, H. H.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA.
[Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Solovyev, V.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Roda, C.; Sarri, F.; White, S.; Zinonos, Z.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
[Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Roda, C.; Sarri, F.; White, S.; Zinonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy.
[Boudreau, J.; Cleland, W.; Escobar, C.; Kittelmann, T.; Mueller, J.; Prieur, D.; Savinov, V.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Dos Santos, S. P. Amor; Amorim, A.; Anjos, N.; Carvalho, J.; Castro, N. F.; Maino, P. Conde; Sargedas De Sousa, M. J. Da Cunha; Wemans, A. Do Valle; Fiolhais, M. C. N.; Galhardo, B.; Gomes, A.; Jorge, P. M.; Lopes, L.; Miguens, J. Machado; Maio, A.; Maneira, J.; Oliveira, M.; Onofrea, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Veloso, F.; Wolters, H.] LIP, Lab Instrumentacao & Fis Expt Particulas, P-1000 Lisbon, Portugal.
[Aguilar-Saavedra, J. A.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain.
[Aguilar-Saavedra, J. A.] Univ Granada, CAFPE, Granada, Spain.
[Bohm, J.; Chudoba, J.; Gunther, J.; Jakoubek, T.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Svatos, M.; Tasevsky, M.; Tic, T.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Augsten, K.; Gallus, P.; Holy, T.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Sodomka, J.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vacek, V.; Vlasak, M.; Vokac, P.; Zeman, M.] Czech Tech Univ, CR-16635 Prague, Czech Republic.
[Balek, P.; Chalupkova, I.; Davidek, T.; Dolejsi, J.; Dolezal, Z.; Torregrosa, E. Fullana; Kodys, P.; Leitner, R.; Novakova, J.; Rybar, M.; Spousta, M.; Strachota, P.; Suk, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.; Wilhelm, I.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
[Ammosov, V. V.; Borisov, A.; Denisov, S. P.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Golubkov, D.; Ivashin, A. V.; Karyukhin, A. N.; Korotkov, V. A.; Kozhin, A. S.; Minaenko, A. A.; Myagkov, A. G.; Nikolaenko, V.; Solodkov, A. A.; Solovyanov, O. V.; Starchenko, E. A.; Zaitsev, A. M.; Zenin, O.; Zmouchko, V. V.] State Res Ctr, Inst High Energy Phys, Protvino, Russia.
[Adye, T.; Baines, J. T.; Barnett, B. M.; Burke, S.; Dewhurst, A.; Emeliyanov, D.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Haywood, S. J.; Kirk, J.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Phillips, P. W.; Sankey, D. P. C.; Scott, W. G.; Tyndel, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
[Benslama, K.] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada.
[Tanaka, S.; Todorova-Nova, S.] Ritsumeikan Univ, Kusatsu, Shiga, Japan.
[Anulli, F.; Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Pedis, D.; De Salvo, A.; De Zorzi, G.; Dionisi, C.; Falciano, S.; Gauzzi, P.; Gentile, S.; Giagu, S.; Ippolito, V.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Luminari, L.; Marzano, F.; Mirabelli, G.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Rosati, S.; Rossi, E.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Vari, R.; VerleZiano, S.; Zanello, L.] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy.
[Artoni, G.; Bagnaia, P.; Bini, C.; Caloi, R.; Ciapetti, G.; D'Orazio, A.; De Zorzi, G.; Dionisi, C.; Gauzzi, P.; Gentile, S.; Giagu, S.; Ippolito, V.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Messina, A.; Rossi, E.; Camillocci, E. Solfaroli; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Simone, A.; Liberti, B.; Marchese, F.; Mazzaferro, L.; Salamon, A.; Santonico, R.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy.
[Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Simone, A.; Marchese, F.; Mazzaferro, L.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy.
[Bacci, C.; Baroncelli, A.; Biglietti, M.; Bortolotto, V.; Branchini, P.; Ceradini, F.; Di Luise, S.; Farilla, A.; Graziani, E.; Iodice, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Stanescu, C.] Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy.
[Bacci, C.; Bortolotto, V.; Ceradini, F.; Di Luise, S.; Orestano, D.; Pastore, F.; Petrucci, F.] Univ Roma Tre, Dipartimento Fis, Rome, Italy.
[Benchekroun, D.; Chafaq, A.; Gouighri, M.; Hoummada, A.; Lablak, S.] Univ Hassan 2, Reseau Univ Phys Hautes Energies, Fac Sci Ain Chock, Casablanca, Morocco.
[Ghazlane, H.] Ctr Natl Energie Sci Tech Nucl, Rabat, Morocco.
[El Kacimi, M.; Goujdami, D.] Univ Cadi Ayyad, LPHEA, Fac Sci Semlalia, Marrakech, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco.
[Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] LPTPM, Oujda, Morocco.
[El Moursli, R. Cherkaoui] Univ Mohammed V Agdal, Fac Sci, Rabat, Morocco.
[Abreu, H.; Bachacou, H.; Bauer, F.; Besson, N.; Blanchard, J. -B.; Bolnet, N. M.; Boonekamp, M.; Chevalier, L.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gauthier, L.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Legendre, M.; Maiani, C.; Mal, P.; Ramos, J. A. Manjarres; Mansoulie, B.; Martinez, H.; Meyer, J. -P.; Mijovic, L.; Morange, N.; Mountricha, E.; Hong, V. Nguyen Thi; Nicolaidou, R.; Ouraou, A.; Resende, B.; Royon, C. R.; Schoeffel, L.; Schune, Ph.; Schwindling, J.; Simard, O.; Virchaux, M.; Vranjes, N.; Xiao, M.; Xu, C.] IRFU Inst Rech Sur Lois Fondamentales Univ, DSM, CEA Saclay Commissariat Energie Atom & Energies A, Gif Sur Yvette, France.
[Chouridou, S.; Damiani, D. S.; Grillo, A. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, J.; Nielsen, J.; Sadrozinski, H. F-W.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Beckingham, M.; Coccaro, A.; Goussiou, A. G.; Harris, O. M.; Hsu, S. -C.; Keller, J. S.; Lubatti, H. J.; Rompotis, N.; Rothberg, J.; Verducci, M.; Watts, G.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfleld, R.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Korolkova, E. V.; Mcfayden, J. A.; Miyagawa, P. S.; Owen, S.; Paganis, E.; Suruliz, K.; Tovey, D. R.; Tsionou, D.; Tua, A.] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England.
[Hasegawa, Y.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan.
[Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Rosenthal, O.; Sipica, V.; Walkowiak, W.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany.
[Dawe, E.; Godfrey, J.; Kvita, J.; O'Neil, D. C.; Petteni, M.; Stelzer, B.; Tanasijczuk, A. J.; Trottier-McDonald, M.; Van Nieuwkoop, J.; Vetterli, M. C.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
[Aracena, I.; Mayes, J. Backus; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Cogan, J. G.; Eifert, T.; Fulsom, B. G.; Gao, Y. S.; Garelli, N.; Grenier, P.; Hansson, P.; Kocian, M.; Koi, T.; Lowe, A. J.; Malone, C.; Mount, R.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Strauss, E.; Su, D.; Wilson, M. G.; Wittgen, M.; Young, C.] SLAC Natl Accelerator Lab, Stanford, CA USA.
[Batkova, L.; Blazek, T.; Federic, P.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia.
[Antos, J.; Bruncko, D.; Ferencei, J.; Kladiva, E.; Seman, M.; Strizenec, P.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice 04353, Slovakia.
[Aurousseau, M.; Yacoob, S.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa.
[Bristow, T. M.; Carrillo-Montoya, G. D.; Hamilton, A.; Leney, K. J. C.; Vickey, T.; Boeriu, O. E. Vickey] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa.
[Asman, B.; Bendtz, K.; Bohm, C.; Clement, C.; Eriksson, D.; Gellerstedt, K.; Hellman, S.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jon-And, K.; Khandanyan, H.; Kim, H.; Klimek, P.; Lundberg, J.; Lundberg, O.; Milsted, D. A.; Moa, T.; Papadelis, A.; Sellden, B.; Silverstein, S. B.; Sjolin, J.; Strandberg, S.; Tyimad, M.; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Asman, B.; Bendtz, K.; Clement, C.; Gellerstedt, K.; Hellman, S.; Johansen, M.; Jon-And, K.; Khandanyan, H.; Kim, H.; Klimek, P.; Lundberg, J.; Lundberg, O.; Milsted, D. A.; Moa, T.; Sjolin, J.; Tyimad, M.; Yang, Z.] Oskar Klein Ctr, Stockholm, Sweden.
[Jovicevic, J.; Kuwertz, E. S.; Lund-Jensen, B.; Strandberg, J.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden.
[Ahmad, A.; Arfaoui, S.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; Li, H.; Mastrandrea, P.; McCarthy, R. L.; Mohapatra, S.; Puldon, D.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.] SUNY Stony Brook, Dept Phys &Astron & Chem, Stony Brook, NY 11794 USA.
[Bartsch, V.; De Santo, A.; Martin-Haugh, S.; Potter, C. J.; Rose, A.; Salvatore, F.; Castillo, I. Santoyo; Sutton, M. R.] Univ Sussex, Dept Phys & Astron, Brighton, E Sussex, England.
[Bangert, A.; Black, C. W.; Cuthbert, C.; Jeng, G. -Y.; Patel, N.; Saavedra, A. F.; Scarcella, M.; Varvell, K. E.; Watson, I. J.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Chu, M. L.; Hou, S.; Jamin, D. O.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, J.; Wang, S. M.; Weng, Z.; Zhou, Y.] Acad Sinica, Inst Phys, Taipei, Taiwan.
[Harpaz, S. Behar; Di 'Mattia, A.; Kajomovitz, E.; Kopeliansky, R.; Musto, E.; Rozen, Y.; Tarem, S.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel.
[Abramowicz, H.; Alexander, G.; Amram, N.; Bella, G.; Benary, O.; Benhammou, Y.; Etzion, E.; Gershon, A.; Ginzburg, J.; Guttman, N.; Hod, N.; Munwes, Y.; Oren, Y.; Sadeh, I.; Silver, Y.; Soffer, A.; Taiblum, N.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Bachas, K.; Iliadis, D.; Kordas, K.; Kouskoura, V.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kazama, S.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsunaga, H.; Nakamura, T.; Ninomiya, Y.; Okuyama, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamaguchi, H.; Yamamoto, S.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.; Yoshihara, K.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan.
[Akimoto, G.; Asai, S.; Azuma, Y.; Dohmae, T.; Kanaya, N.; Kataoka, Y.; Kawamoto, T.; Kazama, S.; Kessoku, K.; Kobayashi, T.; Komori, Y.; Mashimo, T.; Masubuchi, T.; Matsunaga, H.; Nakamura, T.; Ninomiya, Y.; Okuyama, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamaguchi, H.; Yamamoto, S.; Yamamura, T.; Yamanaka, T.; Yamazaki, T.; Yoshihara, K.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan.
[Ishitsuka, M.; Jinnouchi, O.; Kanno, T.; Kuze, M.; Nagai, R.; Nobe, T.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan.
[AbouZeid, O. S.; Bailey, D. C.; Brelier, B.; Cheung, S. L.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Guo, B.; Illic, N.; Keung, J.; Krieger, P.; Orr, R. S.; Polifka, R.; Rezvani, R.; Rosenbaum, G. A.; Savard, P.; Sinervo, P.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.; Venturi, N.] Univ Toronto, Dept Phys, Toronto, ON, Canada.
[Azuelos, G.; Canepa, A.; Chekulaev, S. V.; Fortin, D.; Gingrich, D. M.; Koutsman, A.; Losty, M. J.; Oakham, F. G.; Oram, C. J.; Codina, E. Perez; Schouten, D.; Seuster, R.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Garcia, J. A. Benitez; Bustos, A. C. Florez; Palacino, G.; Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada.
[Hanawa, K.; Hara, K.; Hayashi, T.; Kim, S. H.; Kiuchi, K.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Fac Pure & Appl Sci, Tsukuba, Ibaraki, Japan.
[Beaucheminm, P. H.; Hamilton, S.; Meoni, E.; Napier, A.; Rolli, S.; Sliwa, K.; Wetter, J.] Tufts Univ, Dept Phys & Astron, Medford, MA 02155 USA.
[Losada, M.; Loureiro, K. F.; Navas, L. Mendoza; Navarro, G.; Sandoval, C.] Univ Antonio Narino, Ctr Invest, Bogota, Colombia.
[Farrell, S.; Eschrich, I. Gough; Lankford, A. J.; Magnoni, L.; Mete, A. S.; Nelson, A.; Rao, K.; Schernau, M.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
[Acharya, B. S.; Alhroob, M.; Brazzale, S. F.; Cobal, M.; De Sanctis, U.; Pinamonti, M.; Shaw, K.; Soualah, R.] Ist Nazl Fis Nucl, Grp Collegato Udine, Udine, Italy.
[Acharya, B. S.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy.
[Alhroob, M.; Brazzale, S. F.; Cobal, M.; De Sanctis, U.; Giordani, M. P.; Pinamonti, M.; Shaw, K.; Soualah, R.] Univ Udine, Dipartimento Chim Fis & Ambiente, I-33100 Udine, Italy.
[Atkinson, M.; Basye, A.; Benekos, N.; Cavaliere, V.; Chang, P.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Brenner, R.; Buszello, C. P.; Coniavitis, E.; Ekelof, T.; Ellert, M.; Ferrari, A.; Isaksson, C.; Pelikan, D.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden.
[Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Onzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Moya, M. Minano; Mitsou, V. A.; Moles-Valls, R.; Liacer, M. Moreno; Garcia, E. Oliver; Lopez, S. Pedraza; Garcia-Estan, M. T. Perez; Adam, E. Romero; Ros, E.; Salt, J.; Martinez, V. Sanchez; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valero, A.; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain.
[Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Onzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Moya, M. Minano; Mitsou, V. A.; Moles-Valls, R.; Liacer, M. Moreno; Garcia, E. Oliver; Lopez, S. Pedraza; Garcia-Estan, M. T. Perez; Adam, E. Romero; Ros, E.; Salt, J.; Martinez, V. Sanchez; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valero, A.; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain.
[Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Onzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Moya, M. Minano; Mitsou, V. A.; Moles-Valls, R.; Liacer, M. Moreno; Garcia, E. Oliver; Lopez, S. Pedraza; Garcia-Estan, M. T. Perez; Adam, E. Romero; Ros, E.; Salt, J.; Martinez, V. Sanchez; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valero, A.; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.] Univ Valencia, Dept Ingn Elect, Valencia, Spain.
[Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Onzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Moya, M. Minano; Mitsou, V. A.; Moles-Valls, R.; Liacer, M. Moreno; Garcia, E. Oliver; Lopez, S. Pedraza; Garcia-Estan, M. T. Perez; Adam, E. Romero; Ros, E.; Salt, J.; Martinez, V. Sanchez; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valero, A.; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.] Univ Valencia, Inst Microelect Barcelona IMB CNM, Valencia, Spain.
[Urban, S. Cabrera; Gimenez, V. Castillo; Costa, M. J.; Fassi, F.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; Onzalez de la Hoz, S.; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Quiles, A. Irles; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; March, L.; Marti-Garcia, S.; Moya, M. Minano; Mitsou, V. A.; Moles-Valls, R.; Liacer, M. Moreno; Garcia, E. Oliver; Lopez, S. Pedraza; Garcia-Estan, M. T. Perez; Adam, E. Romero; Ros, E.; Salt, J.; Martinez, V. Sanchez; Soldevila, U.; Sanchez, J.; Pastor, E. Torro; Valero, A.; Gallego, E. Valladolid; Ferrer, J. A. Valls; Perez, M. Villaplana; Vos, M.] CSIC, Valencia, Spain.
[Axen, D.; Fedorko, W.; Gay, C.; Gecse, Z.; Loh, C. W.; Mills, W. J.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada.
[Albert, J.; Astbury, A.; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J. -R.; Marino, C. P.; Martyniuk, A. C.; McPherson, R. A.; Ouellette, E. A.; Pearce, J.; Sobie, R.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada.
[Farrington, S. M.; Jones, G.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England.
[Kimura, N.; Yorita, K.] Waseda Univ, Tokyo, Japan.
[Alon, R.; Barak, L.; Bressler, S.; Citron, Z. H.; Duchovni, E.; Frank, T.; Gabizon, O.; Gross, E.; Groth-Jensen, J.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Roth, I.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Banerjee, Sw.; Hernandez, A. M. Castaneda; Castaneda-Miranda, E.; Chen, X.; Dos Anjos, A.; Castillo, L. R. Flores; Gutzwiller, O.; Jared, R. C.; Ji, H.; Ju, X.; Kashif, L.; Ma, L. L.; Garcia, B. R. Mellado; Ming, Y.; Pan, Y. B.; Morales, M. I. Pedraza; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Yang, H.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Fleischmann, P.; Meyer, J.; Redelbach, A.; Siragusa, G.; Stroehmer, R.; Trefzger, T.] Univ Wurzburg, Fak Phys & Astron, D-97070 Wurzburg, Germany.
[Barisonzi, M.; Becker, K.; Becks, K. H.; Boek, J.; Boek, T. T.; Braun, H. M.; Cornelissen, T.; Duda, D.; Fleischmann, S.; Flick, T.; Gerlach, P.; Gorfine, G.; Hamacher, K.; Harenberg, T.; Hirschbuehl, D.; Kalinin, S.; Kersten, S.; Khoroshilov, A.; Kohlmann, S.; Lenzen, G.; Mattig, P.; Mechtel, M.; Neumann, M.; Pataraia, S.; Sandhoff, M.; Sartisohn, G.; Schultes, J.; Sturm, P.; Wagner, W.; Wahlen, H.; Wicke, D.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich C Phys, Wuppertal, Germany.
[Adelman, J.; Baker, O. K.; Bedikian, S.; Almenar, C. Cuenca; Cummings, J.; Czyczula, Z.; Demers, S.; Erdmann, J.; Garberson, F.; Goiling, T.; Guest, D.; Henrichs, A.; Lagouri, T.; Lee, L.; Leister, A. G.; Loginov, A.; Sherman, D.; Tipton, P.; Wall, R.; Walsh, B.] Yale Univ, Dept Phys, New Haven, CT USA.
[Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Biscarat, C.; Rahal, G.] Ctr Calcul Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France.
[Acharya, B. S.] Kings Coll London, Dept Phys, London WC2R 2LS, England.
[Aguilar-Saavedra, J. A.] LIP, Lab Instrumentacao & Fis Expt Particulas, P-1000 Lisbon, Portugal.
[Amorim, A.; Gomes, A.; Maio, A.; Pina, J.] Univ Lisbon, Fac Ciencias, Lisbon, Portugal.
[Amorim, A.; Gomes, A.; Maio, A.; Pina, J.] Univ Lisbon, CFNUL, P-1699 Lisbon, Portugal.
[Apolle, R.; Davies, E.; Mattravers, C.; Nash, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England.
[Assamagan, K.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa.
[Bawa, H. S.; Gao, Y. S.; Lowe, A. J.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA.
[Beloborodova, O.; Maximov, D. A.; Talyshev, A.; Tikhonov, Y. A.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Carvalho, J.; Corriveau, F.; Fiolhais, M. C. N.; Oliveira, M.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal.
[Hernandez, A. M. Castaneda] UASLP, Dept Phys, San Luis Potosi, Mexico.
[Conventi, F.; Della Pietra, M.] Univ Napoli Parthenope, Naples, Italy.
[McPherson, R. A.; Robertson, S. H.; Sobie, R.; Teuscher, R. J.] Inst Particle Phys, Toronto, ON, Canada.
[Demirkoz, B.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey.
[Dhullipudi, R.; Greenwood, Z. D.; Sawyer, L.] Louisiana Tech Univ, Ruston, LA 71270 USA.
[Wemans, A. Do Valle] Univ Nova Lisboa, Dept Fis, Caparica, Portugal.
[Wemans, A. Do Valle] Univ Nova Lisboa, CEFITEC, Fac Ciencias & Tecnol, Caparica, Portugal.
[Dobson, E.] UCL, Dept Phys & Astron, London, England.
[Hamilton, A.] Univ Cape Town, Dept Phys, ZA-7925 Cape Town, South Africa.
[Kono, T.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Konoplich, R.] Manhattan Coll, New York, NY USA.
[Liang, Z.; Soh, D. A.; Weng, Z.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Peoples R China.
[Lin, S. C.] Acad Sinica, Inst Phys, Acad Sinica Grid Comp, Taipei, Taiwan.
[Meng, Z.] Shandong Univ, Sch Phys, Shandong, Peoples R China.
[Onofrea, A.] Univ Minho, Dept Fis, Braga, Portugal.
[Ruhr, F.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Park, W.; Purohit, M.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Pasztor, G.; Toth, J.] Wigner Res Ctr Phys, Inst Particle & Nucl Phys, Budapest, Hungary.
[Perez, K.] CALTECH, Pasadena, CA 91125 USA.
[Richter-Was, E.] Jagiellonian Univ, Inst Phys, Krakow, Poland.
[Smirnova, L. N.] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia.
[Wu, Y.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA.
[Yacoob, S.] Univ KwaZulu Natal, Discipline Phys, Durban, South Africa.
RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
RI Vanyashin, Aleksandr/H-7796-2013; Moorhead, Gareth/B-6634-2009; Doyle,
Anthony/C-5889-2009; Casadei, Diego/I-1785-2013; Amorim,
Antonio/C-8460-2013; La Rosa, Alessandro/I-1856-2013; Moraes,
Arthur/F-6478-2010; Smirnov, Sergei/F-1014-2011; Andreazza,
Attilio/E-5642-2011; Boyko, Igor/J-3659-2013; Kuleshov,
Sergey/D-9940-2013; Anjos, Nuno/I-3918-2013; Kartvelishvili,
Vakhtang/K-2312-2013; Lee, Jason/B-9701-2014; Robson, Aidan/G-1087-2011;
Smirnova, Oxana/A-4401-2013; Fabbri, Laura/H-3442-2012; Villa,
Mauro/C-9883-2009; Nozka, Libor/G-5550-2014; Kepka, Oldrich/G-6375-2014;
Nemecek, Stanislav/G-5931-2014; Lokajicek, Milos/G-7800-2014; Jakoubek,
Tomas/G-8644-2014; Staroba, Pavel/G-8850-2014; Kupco,
Alexander/G-9713-2014; de Groot, Nicolo/A-2675-2009; Marcisovsky,
Michal/H-1533-2014; Dawson, Ian/K-6090-2013; Solfaroli Camillocci,
Elena/J-1596-2012; Ferrando, James/A-9192-2012; Brooks,
William/C-8636-2013; Tudorache, Alexandra/L-3557-2013; Tudorache,
Valentina/D-2743-2012; Marti-Garcia, Salvador/F-3085-2011; Shabalina,
Elizaveta/M-2227-2013; Wolters, Helmut/M-4154-2013; De,
Kaushik/N-1953-2013; Snesarev, Andrey/H-5090-2013; Warburton,
Andreas/N-8028-2013; Sukharev, Andrey/A-6470-2014; Ippolito,
Valerio/L-1435-2016; Mora Herrera, Maria Clemencia/L-3893-2016; Maneira,
Jose/D-8486-2011; KHODINOV, ALEKSANDR/D-6269-2015; Gauzzi,
Paolo/D-2615-2009; Gerbaudo, Davide/J-4536-2012; Solodkov,
Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Monzani,
Simone/D-6328-2017; Guo, Jun/O-5202-2015; Aguilar Saavedra, Juan
Antonio/F-1256-2016; Wemans, Andre/A-6738-2012; Leyton,
Michael/G-2214-2016; Jones, Roger/H-5578-2011; Pacheco Pages,
Andres/C-5353-2011; Vranjes Milosavljevic, Marija/F-9847-2016; SULIN,
VLADIMIR/N-2793-2015; Nechaeva, Polina/N-1148-2015; Olshevskiy,
Alexander/I-1580-2016; Ventura, Andrea/A-9544-2015; BESSON,
NATHALIE/L-6250-2015; Vanadia, Marco/K-5870-2016; spagnolo,
stefania/A-6359-2012; Shmeleva, Alevtina/M-6199-2015; Camarri,
Paolo/M-7979-2015; Gavrilenko, Igor/M-8260-2015; Tikhomirov,
Vladimir/M-6194-2015; Yang, Haijun/O-1055-2015; Chekulaev,
Sergey/O-1145-2015; Gorelov, Igor/J-9010-2015; Gladilin,
Leonid/B-5226-2011; Carvalho, Joao/M-4060-2013; Mashinistov,
Ruslan/M-8356-2015; Gonzalez de la Hoz, Santiago/E-2494-2016; Mitsou,
Vasiliki/D-1967-2009; Joergensen, Morten/E-6847-2015; Riu,
Imma/L-7385-2014; Mir, Lluisa-Maria/G-7212-2015; Della Pietra,
Massimo/J-5008-2012; Cavalli-Sforza, Matteo/H-7102-2015; Petrucci,
Fabrizio/G-8348-2012; Negrini, Matteo/C-8906-2014; Ferrer,
Antonio/H-2942-2015; Prokoshin, Fedor/E-2795-2012; Hansen,
John/B-9058-2015; Grancagnolo, Sergio/J-3957-2015; Mikestikova,
Marcela/H-1996-2014; Kuday, Sinan/C-8528-2014; Tomasek,
Lukas/G-6370-2014; Svatos, Michal/G-8437-2014; Chudoba,
Jiri/G-7737-2014; Peleganchuk, Sergey/J-6722-2014; Santamarina Rios,
Cibran/K-4686-2014; Bosman, Martine/J-9917-2014; Castro,
Nuno/D-5260-2011; Demirkoz, Bilge/C-8179-2014; Gutierrez,
Phillip/C-1161-2011; Livan, Michele/D-7531-2012
OI Vanyashin, Aleksandr/0000-0002-0367-5666; Moorhead,
Gareth/0000-0002-9299-9549; Doyle, Anthony/0000-0001-6322-6195; La Rosa,
Alessandro/0000-0001-6291-2142; Moraes, Arthur/0000-0002-5157-5686;
Smirnov, Sergei/0000-0002-6778-073X; Andreazza,
Attilio/0000-0001-5161-5759; Boyko, Igor/0000-0002-3355-4662; Kuleshov,
Sergey/0000-0002-3065-326X; Lee, Jason/0000-0002-2153-1519; Smirnova,
Oxana/0000-0003-2517-531X; Fabbri, Laura/0000-0002-4002-8353; Villa,
Mauro/0000-0002-9181-8048; Solfaroli Camillocci,
Elena/0000-0002-5347-7764; Ferrando, James/0000-0002-1007-7816; Brooks,
William/0000-0001-6161-3570; Wolters, Helmut/0000-0002-9588-1773; De,
Kaushik/0000-0002-5647-4489; Warburton, Andreas/0000-0002-2298-7315;
Ippolito, Valerio/0000-0001-5126-1620; Mora Herrera, Maria
Clemencia/0000-0003-3915-3170; Maneira, Jose/0000-0002-3222-2738;
KHODINOV, ALEKSANDR/0000-0003-3551-5808; Gauzzi,
Paolo/0000-0003-4841-5822; Gerbaudo, Davide/0000-0002-4463-0878;
Solodkov, Alexander/0000-0002-2737-8674; Zaitsev,
Alexandre/0000-0002-4961-8368; Monzani, Simone/0000-0002-0479-2207; Guo,
Jun/0000-0001-8125-9433; Aguilar Saavedra, Juan
Antonio/0000-0002-5475-8920; Wemans, Andre/0000-0002-9669-9500; Leyton,
Michael/0000-0002-0727-8107; Jones, Roger/0000-0002-6427-3513; Pacheco
Pages, Andres/0000-0001-8210-1734; Vranjes Milosavljevic,
Marija/0000-0003-4477-9733; SULIN, VLADIMIR/0000-0003-3943-2495;
Olshevskiy, Alexander/0000-0002-8902-1793; Ventura,
Andrea/0000-0002-3368-3413; Vanadia, Marco/0000-0003-2684-276X;
spagnolo, stefania/0000-0001-7482-6348; Camarri,
Paolo/0000-0002-5732-5645; Tikhomirov, Vladimir/0000-0002-9634-0581;
Gorelov, Igor/0000-0001-5570-0133; Gladilin, Leonid/0000-0001-9422-8636;
Carvalho, Joao/0000-0002-3015-7821; Mashinistov,
Ruslan/0000-0001-7925-4676; Gonzalez de la Hoz,
Santiago/0000-0001-5304-5390; Mitsou, Vasiliki/0000-0002-1533-8886;
Joergensen, Morten/0000-0002-6790-9361; Riu, Imma/0000-0002-3742-4582;
Mir, Lluisa-Maria/0000-0002-4276-715X; Della Pietra,
Massimo/0000-0003-4446-3368; Petrucci, Fabrizio/0000-0002-5278-2206;
Negrini, Matteo/0000-0003-0101-6963; Ferrer,
Antonio/0000-0003-0532-711X; Prokoshin, Fedor/0000-0001-6389-5399;
Hansen, John/0000-0002-8422-5543; Grancagnolo,
Sergio/0000-0001-8490-8304; Mikestikova, Marcela/0000-0003-1277-2596;
Kuday, Sinan/0000-0002-0116-5494; Tomasek, Lukas/0000-0002-5224-1936;
Svatos, Michal/0000-0002-7199-3383; Peleganchuk,
Sergey/0000-0003-0907-7592; Santamarina Rios,
Cibran/0000-0002-9810-1816; Bosman, Martine/0000-0002-7290-643X; Castro,
Nuno/0000-0001-8491-4376; Livan, Michele/0000-0002-5877-0062
FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS,
Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada;
NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; MOST, China;
NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech Republic; MPO CR,
Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark;
Lundbeck Foundation, Denmark; ARTEMIS; European Union; IN2P3-CNRS,
France; CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, Germany; DFG,
Germany; HGF, Germany; MPG, Germany; AvH Foundation, Germany; GSRT,
Greece; ISF, Israel; MINERVA, Israel; GIF, Israel; DIP, Israel; Benoziyo
Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco;
FOM, Netherlands; NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES,
Portugal; FCT, Portugal; MERYS (MECTS), Romania; MES of Russia, Russian
Federation; ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR,
Slovakia; ARRS, Slovenia; MVZT, Slovenia; DST/NRF, South Africa; MICINN,
Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland;
SNSF, Switzerland; Canton of Bern, Switzerland; Canton of Geneva,
Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, United Kingdom; Royal
Society, United Kingdom; Leverhulme Trust, United Kingdom; DOE, United
States of America; NSF, United States of America
FX We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC,
Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and
FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS,
MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR,
Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; ARTEMIS,
European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF,
DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA,
GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan;
CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland;
GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and
ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS
and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and
Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva,
Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and
Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.
NR 47
TC 16
Z9 16
U1 7
U2 162
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 10
PY 2013
VL 723
IS 1-3
BP 15
EP 32
DI 10.1016/j.physletb.2013.04.035
PG 18
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161PT
UT WOS:000320206500003
ER
PT J
AU Snyder, JB
Reviol, W
Sarantites, DG
Afanasjev, AV
Janssens, RVF
Abusara, H
Carpenter, MP
Chen, X
Chiara, CJ
Greene, JP
Lauritsen, T
McCutchan, EA
Seweryniak, D
Zhu, S
AF Snyder, J. B.
Reviol, W.
Sarantites, D. G.
Afanasjev, A. V.
Janssens, R. V. F.
Abusara, H.
Carpenter, M. P.
Chen, X.
Chiara, C. J.
Greene, J. P.
Lauritsen, T.
McCutchan, E. A.
Seweryniak, D.
Zhu, S.
TI High-spin transition quadrupole moments in neutron-rich Mo and Ru
nuclei: Testing gamma softness?
SO PHYSICS LETTERS B
LA English
DT Article
DE Rotational bands; Transition quadrupole moments; Triaxial nuclear shape;
Cranked relativistic Hartree-Bogoliubov theory
ID GROUND-STATE; GAMMASPHERE; EVOLUTION; ISOTOPES; SHAPES; BANDS
AB The transition quadrupole moments, Q(t), of rotational bands in the neutron-rich, even-mass Mo102-108 and Ru108-112 nuclei were measured in the 8-16 (h) over bar spin range with the Doppler-shift attenuation method. The nuclei were populated as fission fragments from Cf-252 fission. The detector setup consisted of the Gammasphere spectrometer and the HERCULES fast-plastic array. At moderate spin, the Q(t) moments are found to be reduced with respect to the values near the ground states. Attempts to describe the observations in mean-field-based models, specifically cranked relativistic Hartree-Bogoliubov theory, illustrate the challenge theory faces and the difficulty to infer information on gamma softness and triaxiality from the data. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Snyder, J. B.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Reviol, W.; Sarantites, D. G.; Chen, X.] Washington Univ, Dept Chem, St Louis, MO 63130 USA.
[Afanasjev, A. V.] Mississippi State Univ, Dept Phys & Astron, Starkville, MS 39762 USA.
[Janssens, R. V. F.; Carpenter, M. P.; Chiara, C. J.; Greene, J. P.; Lauritsen, T.; McCutchan, E. A.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Abusara, H.] An Najah Natl Univ, Dept Phys, Fac Sci, Nablus, Israel.
[Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[McCutchan, E. A.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA.
RP Reviol, W (reprint author), Washington Univ, Dept Chem, St Louis, MO 63130 USA.
EM reviol@wustl.edu
RI Carpenter, Michael/E-4287-2015;
OI Carpenter, Michael/0000-0002-3237-5734; abusara,
hazem/0000-0002-3286-9400
FU US Department of Energy, Office of Nuclear Physics [DE-FG02-88ER40406,
DE-FG02-07ER41459, DE-FG02-94ER40834, DE-AC02-06CH11357]
FX The authors thank J. Elson (WU) and J. Rohrer (ANL) for technical
support. The 252Cf source was provided by the Oak Ridge
National Laboratory. This work was supported by the US Department of
Energy, Office of Nuclear Physics, Grant Nos. DE-FG02-88ER40406,
DE-FG02-07ER41459, DE-FG02-94ER40834, and Contract No.
DE-AC02-06CH11357.
NR 27
TC 11
Z9 11
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 10
PY 2013
VL 723
IS 1-3
BP 61
EP 65
DI 10.1016/j.physletb.2013.04.046
PG 5
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161PT
UT WOS:000320206500007
ER
PT J
AU Abe, Y
Aberleu, C
dos Anjos, JC
Barriere, JC
Bergevin, M
Bernstein, A
Bezerra, TJC
Bezrukhovn, L
Blucher, E
Bowden, NS
Buck, C
Busenitz, J
Cabrera, A
Caden, E
Camilleri, L
Carr, R
Cerrada, M
Chang, PJ
Chimenti, R
Classen, T
Collin, AP
Conover, E
Conrad, JM
Crespo-Anadoon, JI
Crum, K
Cucoanes, A
Damon, E
Dawson, JV
Dazeley, S
Dietrich, D
Djurcic, Z
Dracos, M
Durand, V
Ebert, J
Efremenko, Y
Elnimr, M
Erickson, A
Etenko, A
Fallot, M
Fechner, M
von Feilitzsch, F
Felde, J
Fernandes, SM
Fischer, V
Franco, D
Franke, AJ
Franke, M
Furuta, H
Gama, R
Gil-Botella, I
Giot, L
Goger-Neff, M
Gonzalez, LFG
Goodenough, L
Goodman, MC
Goon, JTM
Greiner, D
Haag, N
Habib, S
Hagner, C
Hara, T
Hartmann, FX
Haser, J
Hatzikoutelis, A
Hayakawa, T
Hofmann, M
Horton-Smith, GA
Hourlier, A
Ishitsuka, M
Jochum, J
Jollet, C
Jones, CL
Kaether, TF
Kalousis, LN
Kamyshkov, Y
Kaplan, DM
Kawasaki, T
Keefer, G
Kemp, E
De Kerret, H
Konno, T
Kryn, D
Kuze, M
Lachenmaier, T
Lane, CE
Langbrandtner, C
Lasserre, T
Letourneau, A
Lhuillier, D
Lima, HP
Lindner, M
Lopez-Castano, JM
LoSecco, JM
Lubsandorzhiev, BK
Lucht, S
McKee, D
Maeda, J
Maesano, CN
Mariani, C
Maricic, J
Martino, J
Matsubara, T
Mention, G
Meregaglia, A
Meyer, M
Miletic, T
Milincic, R
Miyata, H
Mueller, TA
Nagasaka, Y
Nakajima, K
Novella, P
Obolensky, M
Oberauer, L
Onillon, A
Osborn, A
Ostrovskiy, I
Palomares, C
Pepe, IM
Perasso, S
Perrin, P
Pfahler, P
Porta, A
Potzel, W
Pronost, G
Reichenbacher, J
Reinhold, B
Remoto, A
Rohling, M
Roncin, R
Roth, S
Rybolt, B
Sakamoto, Y
Santorelli, R
Sato, F
Schonert, S
Schoppmann, S
Schwetz, T
Shaevitz, MH
Shimojima, S
Shrestha, D
Sida, JL
Sinev, V
Skorokhvatov, M
Smith, E
Spitz, J
Stahl, A
Stancu, I
Stokes, LFF
Strait, M
Stuken, A
Suekane, K
Sukhotin, S
Sumiyoshi, T
Sun, Y
Svoboda, R
Terao, K
Tonazzo, A
Toups, M
Thi, HHT
Valdiviesso, G
Veyssiere, C
Wagner, S
Watanabe, H
White, B
Wiebusch, C
Winslow, L
Worcester, M
Wurm, M
Yermia, F
Zimmer, V
AF Abe, Y.
Aberle, C.
dos Anjos, J. C.
Barriere, J. C.
Bergevin, M.
Bernstein, A.
Bezerra, T. J. C.
Bezrukhovn, L.
Blucher, E.
Bowden, N. S.
Buck, C.
Busenitz, J.
Cabrera, A.
Caden, E.
Camilleri, L.
Carr, R.
Cerrada, M.
Chang, P. -J
Chimenti, R.
Classen, T.
Collin, A. P.
Conover, E.
Conrad, J. M.
Crespo-Anadon, J. I.
Crum, K.
Cucoanes, A.
Damon, E.
Dawson, J. V.
Dazeley, S.
Dietrich, D.
Djurcic, Z.
Dracos, M.
Durand, V.
Ebert, J.
Efremenko, Y.
Elnimr, M.
Erickson, A.
Etenko, A.
Fallot, M.
Fechner, M.
von Feilitzsch, F.
Felde, J.
Fernandes, S. M.
Fischer, V.
Franco, D.
Franke, A. J.
Franke, M.
Furuta, H.
Gama, R.
Gil-Botella, I.
Giot, L.
Goeger-Neff, M.
Gonzalez, L. F. G.
Goodenough, L.
Goodman, M. C.
Goon, J. T. M.
Greiner, D.
Haag, N.
Habib, S.
Hagner, C.
Hara, T.
Hartmann, F. X.
Haser, J.
Hatzikoutelis, A.
Hayakawa, T.
Hofmann, M.
Horton-Smith, G. A.
Hourlier, A.
Ishitsuka, M.
Jochum, J.
Jollet, C.
Jones, C. L.
Kaether, T. F.
Kalousis, L. N.
Kamyshkov, Y.
Kaplan, D. M.
Kawasaki, T.
Keefer, G.
Kemp, E.
De Kerret, H.
Konno, T.
Kryn, D.
Kuze, M.
Lachenmaier, T.
Lane, C. E.
Langbrandtner, C.
Lasserre, T.
Letourneau, A.
Lhuillier, D.
Lima, H. P., Jr.
Lindner, M.
Lopez-Castano, J. M.
LoSecco, J. M.
Lubsandorzhiev, B. K.
Lucht, S.
McKee, D.
Maeda, J.
Maesano, C. N.
Mariani, C.
Maricic, J.
Martino, J.
Matsubara, T.
Mention, G.
Meregaglia, A.
Meyer, M.
Miletic, T.
Milincic, R.
Miyata, H.
Mueller, Th. A.
Nagasaka, Y.
Nakajima, K.
Novella, P.
Obolensky, M.
Oberauer, L.
Onillon, A.
Osborn, A.
Ostrovskiy, I.
Palomares, C.
Pepe, I. M.
Perasso, S.
Perrin, P.
Pfahler, P.
Porta, A.
Potzel, W.
Pronost, G.
Reichenbacher, J.
Reinhold, B.
Remoto, A.
Roehling, M.
Roncin, R.
Roth, S.
Rybolt, B.
Sakamoto, Y.
Santorelli, R.
Sato, F.
Schoenert, S.
Schoppmann, S.
Schwetz, T.
Shaevitz, M. H.
Shimojima, S.
Shrestha, D.
Sida, J. -L.
Sinev, V.
Skorokhvatov, M.
Smith, E.
Spitz, J.
Stahl, A.
Stancu, I.
Stokes, L. F. F.
Strait, M.
Stueken, A.
Suekane, K.
Sukhotin, S.
Sumiyoshi, T.
Sun, Y.
Svoboda, R.
Terao, K.
Tonazzo, A.
Toups, M.
Thi, H. H. Trinh
Valdiviesso, G.
Veyssiere, C.
Wagner, S.
Watanabe, H.
White, B.
Wiebusch, C.
Winslow, L.
Worcester, M.
Wurm, M.
Yermia, F.
Zimmer, V.
TI First measurement of theta(13) from delayed neutron capture on hydrogen
in the Double Chooz experiment
SO PHYSICS LETTERS B
LA English
DT Article
AB The Double Chooz experiment has determined the value of the neutrino oscillation parameter theta(13) from an analysis of inverse beta decay interactions with neutron capture on hydrogen. This analysis uses a three times larger fiducial volume than the standard Double Chooz assessment, which is restricted to a region doped with gadolinium (Gd), yielding an exposure of 113.1 GW-ton-years. The data sample used in this analysis is distinct from that of the Gd analysis, and the systematic uncertainties are also largely independent, with some exceptions, such as the reactor neutrino flux prediction. A combined rate- and energy-dependent fit finds sin(2) 2 theta(13) = 0.097 +/- 0.034 (stat.) +/- 0.034 (syst.), excluding the no-oscillation hypothesis at 2.0 sigma. This result is consistent with previous measurements of sin(2) 2 theta(13). (c) 2013 Elsevier B.V. All rights reserved.
C1 [Lucht, S.; Roth, S.; Schoppmann, S.; Stahl, A.; Stueken, A.] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany.
[Busenitz, J.; Fernandes, S. M.; Goon, J. T. M.; Habib, S.; Ostrovskiy, I.; Reichenbacher, J.; Stancu, I.; Sun, Y.] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
[Djurcic, Z.; Goodenough, L.; Goodman, M. C.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Cabrera, A.; Dawson, J. V.; Hourlier, A.; De Kerret, H.; Kryn, D.; Obolensky, M.; Roncin, R.; Tonazzo, A.] Univ Paris Diderot, CNRS IN2P3, Observ Paris, APC,CEA,IRFU,Sorbonne Paris Cite, F-75205 Paris 13, France.
[dos Anjos, J. C.; Gama, R.; Lima, H. P., Jr.; Pepe, I. M.; Valdiviesso, G.] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil.
[Blucher, E.; Conover, E.; Crum, K.; Strait, M.; Worcester, M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Cerrada, M.; Crespo-Anadon, J. I.; Gil-Botella, I.; Lopez-Castano, J. M.; Novella, P.; Palomares, C.] CIEMAT, Ctr Invest Energet Medioambient & Tecnol, E-28040 Madrid, Spain.
[Camilleri, L.; Carr, R.; Franke, M.; Shaevitz, M. H.; Toups, M.] Columbia Univ, New York, NY 10027 USA.
[Bergevin, M.; Classen, T.; Felde, J.; Maesano, C. N.] Univ Calif Davis, Davis, CA 95616 USA.
[Caden, E.; Damon, E.; Kalousis, L. N.; Lane, C. E.; Maricic, J.; Miletic, T.; Milincic, R.; Perasso, S.; Smith, E.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
[Ebert, J.; Hagner, C.; Meyer, M.; Wurm, M.] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany.
[Nagasaka, Y.] Hiroshima Inst Technol, Hiroshima 7315193, Japan.
[Kaplan, D. M.] IIT, Dept Phys, Chicago, IL 60616 USA.
[Bezrukhovn, L.; Lubsandorzhiev, B. K.; Sinev, V.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia.
[Barriere, J. C.; Collin, A. P.; Durand, V.; Fechner, M.; Fischer, V.; Franco, D.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Mention, G.; Perrin, P.; Sida, J. -L.; Sinev, V.; Veyssiere, C.] Commissariat & Energie Atom & Energies Alternat, Ctr Saclay, IRFU, F-91191 Gif Sur Yvette, France.
[Bernstein, A.; Bowden, N. S.; Classen, T.; Dazeley, S.; Erickson, A.; Keefer, G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Chang, P. -J; Horton-Smith, G. A.; McKee, D.; Shrestha, D.] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA.
[Hara, T.] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan.
[Etenko, A.; Skorokhvatov, M.; Sukhotin, S.] NRC Kurchatov Inst, Moscow 123182, Russia.
[Conrad, J. M.; Jones, C. L.; Spitz, J.; Terao, K.; Winslow, L.] MIT, Cambridge, MA 02139 USA.
[Aberle, C.; Buck, C.; Hartmann, F. X.; Haser, J.; Kaether, T. F.; Langbrandtner, C.; Lindner, M.; Reinhold, B.; Schwetz, T.; Wagner, S.; Watanabe, H.] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany.
[Hayakawa, T.; Kawasaki, T.; Miyata, H.; Nakajima, K.] Niigata Univ, Dept Phys, Niigata 9502181, Japan.
[LoSecco, J. M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Dracos, M.; Jollet, C.; Meregaglia, A.] Univ Strasbourg, IPHC, CNRS, IN2P3, F-67037 Strasbourg, France.
[Cucoanes, A.; Elnimr, M.; Fallot, M.; Giot, L.; Martino, J.; Onillon, A.; Porta, A.; Pronost, G.; Remoto, A.; Yermia, F.] Univ Nantes, Ecole Mines Nantes, SUBATECH, CNRS IN2P3, F-44307 Nantes, France.
[Efremenko, Y.; Hatzikoutelis, A.; Kamyshkov, Y.; Osborn, A.; Rybolt, B.; White, B.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Bezerra, T. J. C.; Furuta, H.; Mueller, Th. A.; Suekane, K.] Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan.
[Sakamoto, Y.] Tohoku Gakuin Univ, Sendai, Miyagi 9813193, Japan.
[Abe, Y.; Ishitsuka, M.; Konno, T.; Kuze, M.] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan.
[Maeda, J.; Matsubara, T.; Sato, F.; Shimojima, S.; Sumiyoshi, T.] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan.
[von Feilitzsch, F.; Franke, M.; Goeger-Neff, M.; Haag, N.; Hofmann, M.; Oberauer, L.; Pfahler, P.; Potzel, W.; Schoenert, S.; Thi, H. H. Trinh; Zimmer, V.] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany.
[Dietrich, D.; Greiner, D.; Jochum, J.; Lachenmaier, T.; Roehling, M.; Stokes, L. F. F.] Univ Tubingen, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany.
[Chimenti, R.] Univ Fed ABC, Santo Andre, SP, Brazil.
[Gonzalez, L. F. G.; Kemp, E.] Univ Estadual Campinas, UNICAMP, Campinas, SP, Brazil.
[Dawson, J. V.; De Kerret, H.; Svoboda, R.] Lab Neutrino Champagne Ardenne, F-08600 Rancennes, France.
[Mariani, C.] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA USA.
RP Goger-Neff, M (reprint author), Tech Univ Munich, Dept Phys, D-85747 Garching, Germany.
EM marianne.goeger@ph.tum.de
RI Kamyshkov, Yuri/J-7999-2016; Skorokhvatov, Mikhail/R-9735-2016; Inst. of
Physics, Gleb Wataghin/A-9780-2017; Santorelli, Roberto/L-6017-2015;
Horton-Smith, Glenn/A-4409-2011; Wiebusch, Christopher/G-6490-2012;
Cerrada, Marcos/J-6934-2014; Novella, Pau/K-2845-2014; Valdiviesso,
Gustavo/G-3404-2011; Junqueira de Castro Bezerra, Thiago/F-1610-2013;
Stahl, Achim/E-8846-2011; Gil Botella, Ines/H-8991-2015; Mariani,
Camillo/J-6070-2015; Schoppmann, Stefan/M-3057-2015; Palomares,
Carmen/H-7783-2015; Roth, Stefan/J-2757-2016
OI Kamyshkov, Yuri/0000-0002-3789-7152; Santorelli,
Roberto/0000-0002-0012-2644; Spitz, Joshua/0000-0002-6288-7028;
Ostrovskiy, Igor/0000-0003-4939-0225; Lindner,
Manfred/0000-0002-3704-6016; Horton-Smith, Glenn/0000-0001-9677-9167;
Wiebusch, Christopher/0000-0002-6418-3008; Cerrada,
Marcos/0000-0003-0112-1691; Novella, Pau/0000-0002-0923-3172;
Valdiviesso, Gustavo/0000-0002-0381-3619; Junqueira de Castro Bezerra,
Thiago/0000-0002-0424-7903; Stahl, Achim/0000-0002-8369-7506; Mariani,
Camillo/0000-0003-3284-4681; Schoppmann, Stefan/0000-0002-7208-0578;
Palomares, Carmen/0000-0003-4374-9065; Roth, Stefan/0000-0003-3616-2223
FU CEA in France; CNRS/IN2P3 in France; computer center CCIN2P3 in France;
LabEx UnivEarthS in France; Ministry of Education, Culture, Sports,
Science and Technology of Japan (MEXT); Japan Society for the Promotion
of Science (JSPS); Department of Energy of the United States; National
Science Foundation of the United States; Ministerio de Ciencia e
Innovacion (MICINN) of Spain; Max Planck Gesellschaft in Germany;
Deutsche Forschungsgemeinschaft DFG in Germany [SBH WI 2152];
Transregional Collaborative Research Center TR27 in Germany; excellence
cluster "Origin and Structure of the Universe" in Germany;
Maier-Leibnitz-Laboratorium Garching in Germany; Russian Academy of
Science; Kurchatov Institute; RFBR (the Russian Foundation for Basic
Research); Brazilian Ministry of Science, Technology and Innovation
(MCTI) in Brazil; Financiadora de Estudos e Projetos (FINEP) in Brazil;
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) in
Brazil; Sao Paulo Research Foundation (FAPESP) in Brazil; Brazilian
Network for High Energy Physics (RENAFAE) in Brazil
FX We thank the French electricity company EDF; the European fund FEDER;
the Region de Champagne Ardenne; the Departement des Ardennes; and the
Communaute des Communes Ardennes Rives de Meuse. We acknowledge the
support of the CEA, CNRS/IN2P3, the computer center CCIN2P3, and LabEx
UnivEarthS in France; the Ministry of Education, Culture, Sports,
Science and Technology of Japan (MEXT) and the Japan Society for the
Promotion of Science (JSPS); the Department of Energy and the National
Science Foundation of the United States; the Ministerio de Ciencia e
Innovacion (MICINN) of Spain; the Max Planck Gesellschaft, and the
Deutsche Forschungsgemeinschaft DFG (SBH WI 2152), the Transregional
Collaborative Research Center TR27, the excellence cluster "Origin and
Structure of the Universe", and the Maier-Leibnitz-Laboratorium Garching
in Germany; the Russian Academy of Science, the Kurchatov Institute and
RFBR (the Russian Foundation for Basic Research); the Brazilian Ministry
of Science, Technology and Innovation (MCTI), the Financiadora de
Estudos e Projetos (FINEP), the Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq), the Sao Paulo Research Foundation
(FAPESP), and the Brazilian Network for High Energy Physics (RENAFAE) in
Brazil.
NR 13
TC 68
Z9 68
U1 3
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 10
PY 2013
VL 723
IS 1-3
BP 66
EP 70
DI 10.1016/j.physletb.2013.04.050
PG 5
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161PT
UT WOS:000320206500008
ER
PT J
AU Akhmetshin, RR
Anisenkov, AV
Anokhin, SA
Aulchenko, VM
Banzarov, VS
Barkov, LM
Bashtovoy, NS
Berkaev, DE
Bondar, AE
Bragin, AV
Eidelman, SI
Epifanov, DA
Epshteyn, LB
Fedotovich, GV
Gayazov, SE
Grebenuk, AA
Grigoriev, DN
Gromov, EN
Ignatov, FV
Karpov, SV
Kazanin, VF
Khazin, BI
Koop, IA
Kozyrev, AN
Krokovny, PP
Kuzmenko, AE
Kuzmin, AS
Logashenko, IB
Lysenko, AP
Lukin, PA
Mikhailov, KY
Pestov, YN
Perevedentsev, EA
Pirogov, SA
Pivovarov, SG
Popov, AS
Popov, YS
Redin, SI
Rogovsky, YA
Romanov, AL
Ruban, AA
Ryskulov, NM
Ryzhenenkov, AE
Shebalin, VE
Shemyakin, DN
Shwartz, BA
Shwartz, DB
Sibidanov, AL
Shatunov, PY
Shatunov, YM
Snopkov, IG
Solodov, EP
Titov, VM
Talyshev, AA
Vorobiov, AI
Yudin, YV
Zaytsev, AS
AF Akhmetshin, R. R.
Anisenkov, A. V.
Anokhin, S. A.
Aulchenko, V. M.
Banzarov, V. S.
Barkov, L. M.
Bashtovoy, N. S.
Berkaev, D. E.
Bondar, A. E.
Bragin, A. V.
Eidelman, S. I.
Epifanov, D. A.
Epshteyn, L. B.
Fedotovich, G. V.
Gayazov, S. E.
Grebenuk, A. A.
Grigoriev, D. N.
Gromov, E. N.
Ignatov, F. V.
Karpov, S. V.
Kazanin, V. F.
Khazin, B. I.
Koop, I. A.
Kozyrev, A. N.
Krokovny, P. P.
Kuzmenko, A. E.
Kuzmin, A. S.
Logashenko, I. B.
Lysenko, A. P.
Lukin, P. A.
Mikhailov, K. Yu.
Pestov, Yu. N.
Perevedentsev, E. A.
Pirogov, S. A.
Pivovarov, S. G.
Popov, A. S.
Popov, Yu. S.
Redin, S. I.
Rogovsky, Yu. A.
Romanov, A. L.
Ruban, A. A.
Ryskulov, N. M.
Ryzhenenkov, A. E.
Shebalin, V. E.
Shemyakin, D. N.
Shwartz, B. A.
Shwartz, D. B.
Sibidanov, A. L.
Shatunov, P. Yu.
Shatunov, Yu. M.
Snopkov, I. G.
Solodov, E. P.
Titov, V. M.
Talyshev, A. A.
Vorobiov, A. I.
Yudin, Yu. V.
Zaytsev, A. S.
TI Study of the process e(+)e(-) -> 3(pi(+)pi(-)) in the c.m. energy range
1.5-2.0 GeV with the CMD-3 detector
SO PHYSICS LETTERS B
LA English
DT Article
ID NARROW DIP STRUCTURE; DIFFRACTIVE PHOTOPRODUCTION; CROSS-SECTION; 1.9
GEV/C(2); ANNIHILATION; VEPP-2000; COLLIDER
AB The cross section of the process e(+)e(-) -> 3(pi(+)pi(-)) has been measured using a data sample of 22 pb(-1) collected with the CMD-3 detector at the VEPP-2000 e(+)e(-) collider. 7956 signal events are selected in the center-of-mass energy range 1.5-2.0 GeV. The measured cross section exhibits a sharp drop near the p (p) over bar threshold. A first study of dynamics of six-pion production has been performed. (c) 2013 Published by Elsevier B.V.
C1 [Akhmetshin, R. R.; Anisenkov, A. V.; Anokhin, S. A.; Aulchenko, V. M.; Banzarov, V. S.; Barkov, L. M.; Bashtovoy, N. S.; Berkaev, D. E.; Bondar, A. E.; Bragin, A. V.; Eidelman, S. I.; Epifanov, D. A.; Epshteyn, L. B.; Fedotovich, G. V.; Gayazov, S. E.; Grebenuk, A. A.; Grigoriev, D. N.; Gromov, E. N.; Ignatov, F. V.; Karpov, S. V.; Kazanin, V. F.; Khazin, B. I.; Koop, I. A.; Kozyrev, A. N.; Krokovny, P. P.; Kuzmenko, A. E.; Kuzmin, A. S.; Logashenko, I. B.; Lysenko, A. P.; Lukin, P. A.; Mikhailov, K. Yu.; Pestov, Yu. N.; Perevedentsev, E. A.; Pirogov, S. A.; Pivovarov, S. G.; Popov, A. S.; Popov, Yu. S.; Redin, S. I.; Rogovsky, Yu. A.; Romanov, A. L.; Ruban, A. A.; Ryskulov, N. M.; Ryzhenenkov, A. E.; Shebalin, V. E.; Shemyakin, D. N.; Shwartz, B. A.; Shwartz, D. B.; Sibidanov, A. L.; Shatunov, P. Yu.; Shatunov, Yu. M.; Snopkov, I. G.; Solodov, E. P.; Titov, V. M.; Talyshev, A. A.; Vorobiov, A. I.; Yudin, Yu. V.; Zaytsev, A. S.] SB RAS, Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
[Anokhin, S. A.; Aulchenko, V. M.; Berkaev, D. E.; Bondar, A. E.; Epifanov, D. A.; Gayazov, S. E.; Grebenuk, A. A.; Grigoriev, D. N.; Khazin, B. I.; Koop, I. A.; Kozyrev, A. N.; Kuzmenko, A. E.; Lysenko, A. P.; Mikhailov, K. Yu.; Pirogov, S. A.; Popov, Yu. S.; Shebalin, V. E.; Shwartz, B. A.; Shwartz, D. B.; Titov, V. M.; Vorobiov, A. I.] Novosibirsk State Univ, Novosibirsk 630090, Russia.
[Fedotovich, G. V.; Gromov, E. N.; Kuzmin, A. S.] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia.
[Shatunov, P. Yu.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Zaytsev, A. S.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Epshteyn, L. B.] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan.
RP Solodov, EP (reprint author), SB RAS, Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
EM solodov@inp.nsk.su
RI Logashenko, Ivan/A-3872-2014; Ignatov, Fedor/A-6926-2014; VITALY,
TITOV/A-8263-2014; Krokovny, Pavel/G-4421-2016; Epshteyn,
Leonid/R-7245-2016
OI Krokovny, Pavel/0000-0002-1236-4667;
FU Russian Education and Science Ministry; FEDERAL TARGET PROGRAM
"Scientific and scientific-pedagogical personnel of innovative Russia"
[14.B37.21.07777]; Russian Fund for Basic Research [RFBR 10-02-00695-a,
RFBR 10-02-00253-a, RFBR 11-02-00328-a, RFBR 11-02-00112-a, RFBR
12-02-31501-a, RFBR 12-02-31499-a, RFBR 12-02-31498-a, RFBR
12-02-01032-a]
FX This work is supported in part by the Russian Education and Science
Ministry, by FEDERAL TARGET PROGRAM "Scientific and
scientific-pedagogical personnel of innovative Russia in 2009-2013", by
agreement 14.B37.21.07777, by the Russian Fund for Basic Research grants
RFBR 10-02-00695-a, RFBR 10-02-00253-a, RFBR 11-02-00328-a, RFBR
11-02-00112-a, RFBR 12-02-31501-a, RFBR 12-02-31499-a, RFBR
12-02-31498-a, and RFBR 12-02-01032-a.
NR 21
TC 16
Z9 18
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD JUN 10
PY 2013
VL 723
IS 1-3
BP 82
EP 89
DI 10.1016/j.physletb.2013.04.065
PG 8
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161PT
UT WOS:000320206500011
ER
PT J
AU Agertz, O
Kravtsov, AV
Leitner, SN
Gnedin, NY
AF Agertz, Oscar
Kravtsov, Andrey V.
Leitner, Samuel N.
Gnedin, Nickolay Y.
TI TOWARD A COMPLETE ACCOUNTING OF ENERGY AND MOMENTUM FROM STELLAR
FEEDBACK IN GALAXY FORMATION SIMULATIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: evolution; galaxies: ISM; ISM: structure; methods: numerical;
stars: formation
ID GIANT MOLECULAR CLOUDS; STAR-FORMING GALAXIES; COLD DARK-MATTER;
KENNICUTT-SCHMIDT RELATION; ADAPTIVE MESH REFINEMENT; INITIAL MASS
FUNCTION; INTERSTELLAR-MEDIUM; RADIATION-PRESSURE; COSMOLOGICAL
SIMULATIONS; VELOCITY DISPERSION
AB We investigate the momentum and energy budget of stellar feedback during different stages of stellar evolution, and study its impact on the interstellar medium (ISM) using simulations of local star-forming regions and galactic disks at the resolution affordable in modern cosmological zoom-in simulations. In particular, we present a novel subgrid model for the momentum injection due to radiation pressure and stellar winds from massive stars during early, pre-supernova (pre-SN) evolutionary stages of young star clusters. Early injection of momentum acts to clear out dense gas in star-forming regions, hence limiting star formation. The reduced gas density mitigates radiative losses of thermal feedback energy from subsequent SN explosions. The detailed impact of stellar feedback depends sensitively on the implementation and choice of parameters. Somewhat encouragingly, we find that implementations in which feedback is efficient lead to approximate self-regulation of the global star formation efficiency. We compare simulation results using our feedback implementation to other phenomenological feedback methods, where thermal feedback energy is allowed to dissipate over timescales longer than the formal gas cooling time. We find that simulations with maximal momentum injection suppress star formation to a similar degree as is found in simulations adopting adiabatic thermal feedback. However, different feedback schemes are found to produce significant differences in the density and thermodynamic structure of the ISM, and are hence expected to have a qualitatively different impact on galaxy evolution.
C1 [Agertz, Oscar; Kravtsov, Andrey V.; Leitner, Samuel N.; Gnedin, Nickolay Y.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Agertz, Oscar; Kravtsov, Andrey V.; Leitner, Samuel N.; Gnedin, Nickolay Y.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Agertz, Oscar; Kravtsov, Andrey V.; Leitner, Samuel N.; Gnedin, Nickolay Y.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Leitner, Samuel N.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
RP Agertz, O (reprint author), Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
FU Kavli Institute for Cosmological Physics at the University of Chicago
[NSF PHY-0551142, PHY-1125897]; Fermilab; Kavli Institute for
Cosmological; University of Chicago
FX We thank Romain Teyssier, Robert Feldmann, and Phil Hopkins for fruitful
discussions. O.A. acknowledge the support of the Kavli Institute for
Cosmological Physics at the University of Chicago through grants NSF
PHY-0551142 and PHY-1125897 and an endowment from the Kavli Foundation
and its founder Fred Kavli. The simulations used in this work have been
performed on the Joint Fermilab-KICP Supercomputing Cluster, supported
by grants from Fermilab, Kavli Institute for Cosmological, and the
University of Chicago. O.A. and A.K. are grateful for the hospitality of
Overflow Coffee Bar, where many ideas for this work came into being.
NR 139
TC 136
Z9 136
U1 1
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 10
PY 2013
VL 770
IS 1
AR 25
DI 10.1088/0004-637X/770/1/25
PG 26
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158QD
UT WOS:000319986400025
ER
PT J
AU Dominguez, A
Finke, JD
Prada, F
Primack, JR
Kitaura, FS
Siana, B
Paneque, D
AF Dominguez, A.
Finke, J. D.
Prada, F.
Primack, J. R.
Kitaura, F. S.
Siana, B.
Paneque, D.
TI DETECTION OF THE COSMIC gamma-RAY HORIZON FROM MULTIWAVELENGTH
OBSERVATIONS OF BLAZARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: general; cosmology: observations; diffuse
radiation; galaxies: evolution; galaxies: formation
ID EXTRAGALACTIC BACKGROUND LIGHT; LARGE-AREA TELESCOPE; BL LACERTAE
OBJECTS; INTERGALACTIC MAGNETIC-FIELD; SPECTRAL ENERGY-DISTRIBUTION;
SED-TYPE FRACTIONS; TEV BLAZARS; NEXT-GENERATION; 3C 66A; COSMOLOGICAL
PARAMETERS
AB The first statistically significant detection of the cosmic gamma-ray horizon (CGRH) that is independent of any extragalactic background light (EBL) model is presented. The CGRH is a fundamental quantity in cosmology. It gives an estimate of the opacity of the universe to very high energy (VHE) gamma-ray photons due to photon-photon pair production with the EBL. The only estimations of the CGRH to date are predictions from EBL models and lower limits from gamma-ray observations of cosmological blazars and gamma-ray bursts. Here, we present homogeneous synchrotron/synchrotron self-Compton (SSC) models of the spectral energy distributions of 15 blazars based on (almost) simultaneous observations from radio up to the highest energy gamma-rays taken with the Fermi satellite. These synchrotron/SSC models predict the unattenuated VHE fluxes, which are compared with the observations by imaging atmospheric Cherenkov telescopes. This comparison provides an estimate of the optical depth of the EBL, which allows us a derivation of the CGRH through a maximum likelihood analysis that is EBL-model independent. We find that the observed CGRH is compatible with the current knowledge of the EBL.
C1 [Dominguez, A.; Siana, B.] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA.
[Finke, J. D.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Prada, F.] Campus Int Excellence UAM CSIC, E-28049 Madrid, Spain.
[Prada, F.] Univ Autonoma Madrid, UAM CSIC, Inst Fis Teor, E-28049 Madrid, Spain.
[Prada, F.] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.
[Primack, J. R.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Kitaura, F. S.] Leibniz Inst Astrophys AIP, D-14482 Potsdam, Germany.
[Paneque, D.] Stanford Univ, SLAC, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
RP Dominguez, A (reprint author), Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA.
EM albertod@ucr.edu
OI Dominguez, Alberto/0000-0002-3433-4610
FU Spanish MICINN's Consolider-Ingenio Programme [CSD2009-00064]; Fermi
Guest Investigator; NASA ATP [NNX07AGG4G, NSF-AST-1010033,
NSF-AST-0607712]; National Aeronautics and Space Administration;
Department of Energy in the United States; Commissariat a l'Energie
Atomique; Centre National de la Recherche Scientifique/Institut National
de Physique Nucleaire et de Physique des Particules in France; Agenzia
Spaziale Italiana; Istituto Nazionale di Fisica Nucleare in Italy;
Ministry of Education, Culture, Sports, Science and Technology (MEXT);
High Energy Accelerator Research Organization (KEK); Japan Aerospace
Exploration Agency (JAXA); K. A. Wallenberg Foundation; Swedish Research
Council; Swedish National Space Board in Sweden; Istituto Nazionale di
Astrofisica in Italy; Centre National d'Etudes Spatiales in France
FX The authors thank Marco Ajello, M. A. Sanchez-Conde,Seth Digel, and
David Williams for fruitful discussions. We thank Soebur Razzaque for
useful comments on the draft and the anonymous referee for improving the
manuscript. We acknowledge the support of the Spanish MICINN's
Consolider-Ingenio 2010 Programme under grant MultiDark CSD2009-00064.
J.R.P. acknowledges the support from a Fermi Guest Investigator grant
and also from the NASA ATP grants NNX07AGG4G, NSF-AST-1010033, and
NSF-AST-0607712.; The Fermi LAT Collaboration acknowledges generous
ongoing support from a number of agencies and institutes that have
supported both the development and the operation of the LAT as well as
scientific data analysis. These include the National Aeronautics and
Space Administration and the Department of Energy in the United States;
the Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France; the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan; and the K. A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.;
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 95
TC 27
Z9 27
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JUN 10
PY 2013
VL 770
IS 1
AR 77
DI 10.1088/0004-637X/770/1/77
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 158QD
UT WOS:000319986400077
ER
PT J
AU Srivastava, N
Gao, Q
Widom, M
Feenstra, RM
Nie, S
McCarty, KF
Vlassiouk, IV
AF Srivastava, N.
Gao, Qin
Widom, M.
Feenstra, R. M.
Nie, Shu
McCarty, K. F.
Vlassiouk, I. V.
TI Low-energy electron reflectivity of graphene on copper and other
substrates
SO PHYSICAL REVIEW B
LA English
DT Article
ID SURFACE-STATES; WORK-FUNCTIONS; AG FILMS; GRAPHITE; PHOTOEMISSION; LEED;
TRANSMISSION; 6H-SIC(0001); W(110); BANDS
AB The reflectivity of low-energy electrons from graphene on copper substrates is studied both experimentally and theoretically. Well-known oscillations in the reflectivity of electrons with energies 0-8 eV above the vacuum level are observed in the experiment. These oscillations are reproduced in theory, based on a first-principles density functional description of interlayer states forming for various thicknesses of multilayer graphene. It is demonstrated that n layers of graphene produce a regular series of n - 1 minima in the reflectance spectra, together with a possible additional minimum associated with an interlayer state forming between the graphene and the substrate. Both (111) and (001) orientations of the copper substrates are studied. Similarities in their reflectivity spectra arise from the interlayer states, whereas differences are found because of the different Cu band structures along those orientations. Results for graphene on other substrates, including Pt(111) and Ir(111), are also discussed.
C1 [Srivastava, N.; Gao, Qin; Widom, M.; Feenstra, R. M.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[Nie, Shu; McCarty, K. F.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Vlassiouk, I. V.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Srivastava, N (reprint author), Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
EM feenstra@cmu.edu
RI McCarty, Kevin/F-9368-2012; Feenstra, Randall/P-2530-2014; Widom,
Michael/P-2531-2014; Vlassiouk, Ivan/F-9587-2010
OI McCarty, Kevin/0000-0002-8601-079X; Feenstra,
Randall/0000-0001-7120-5685; Widom, Michael/0000-0001-5972-5696;
Vlassiouk, Ivan/0000-0002-5494-0386
FU National Science Foundation; Office of Naval Research MURI; US DOE
Office of Basic Energy Sciences (BES), Division of Materials Science and
Engineering [DE-AC04-94AL85000]
FX Discussions with Mark Stiles and Di Xiao are gratefully acknowledged,
and we thank S. de la Barrera and P. Mende for their careful reading of
the manuscript. This work was supported by the National Science
Foundation and by the Office of Naval Research MURI program. The work at
Sandia National Laboratories was supported by the US DOE Office of Basic
Energy Sciences (BES), Division of Materials Science and Engineering,
under Contract No. DE-AC04-94AL85000.
NR 73
TC 19
Z9 19
U1 2
U2 82
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 10
PY 2013
VL 87
IS 24
AR 245414
DI 10.1103/PhysRevB.87.245414
PG 19
WC Physics, Condensed Matter
SC Physics
GA 161BJ
UT WOS:000320165200007
ER
PT J
AU Jia, JY
AF Jia, Jiangyong
TI Azimuthal anisotropy in a jet absorption model with fluctuating initial
geometry in heavy ion collisions
SO PHYSICAL REVIEW C
LA English
DT Article
ID FLOW
AB The azimuthal anisotropy due to path-length-dependent jet energy loss is studied in a simple jet absorption model that includes event-by-event fluctuating Glauber geometry. Significant anisotropy coefficients nu(n) are observed for n = 1, 2, and 3, but they are very small for n > 3. These coefficients are expected to result in a ridge for correlations between two independently produced jets. The correlations between the orientation of the nth-order anisotropy induced by jet absorption (Phi(QP)(n)) and the nth-order participant plane (Phi(PP)(n)) responsible for harmonic flow are studied. Tight correlations are observed for n = 2 in mid-central collisions, but they weaken significantly for n not equal 2. The correlations are positive for n <= 3, but become negative in central collisions for n > 3. The dispersion between Phi(QP)(n) and Phi(PP)(n) is expected to break the factorization of the Fourier coefficients from two-particle correlation nu(n, n) into the single particle nu(n), and has important implications for the high-p(T) ridge phenomena.
C1 [Jia, Jiangyong] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Jia, Jiangyong] Brookhaven Natl Lab, Dept Phys, Upton, NY 11796 USA.
RP Jia, JY (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
FU NSF [PHY-1019387]
FX Discussions with Jinfeng Liao are acknowledged. This research is
supported by NSF under Grant No. PHY-1019387.
NR 28
TC 6
Z9 6
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 10
PY 2013
VL 87
IS 6
AR 061901
DI 10.1103/PhysRevC.87.061901
PG 5
WC Physics, Nuclear
SC Physics
GA 161BL
UT WOS:000320165500001
ER
PT J
AU Lee, HS
Sher, M
AF Lee, Hye-Sung
Sher, Marc
TI Dark two Higgs doublet model
SO PHYSICAL REVIEW D
LA English
DT Article
ID E(+)E(-) COLLISIONS; NEUTRAL CURRENTS; ATLAS DETECTOR; GAUGE BOSONS;
SEARCH; FLAVOR; LEP; ENERGIES; MASS; LHC
AB We perform a detailed study of a specific two Higgs doublet model with a U(1) gauge symmetry, instead of a typical Z(2) discrete symmetry, containing a very light gauge boson Z' (GeV scale or below). The Standard Model (SM) fermions do not carry U(1) charges, but induced couplings to the Z' (called the dark Z) are generated through mixing with the SM neutral gauge bosons. Such a light Z' could explain some astrophysical anomalies as well as the muon g - 2 deviation, and has been the subject of great experimental interest. We consider the scenario in which the 125 GeV SM-like Higgs (H) is the heavier scalar state, and focus on the lighter neutral state (h) as well as charged Higgs. We analyze the constraints on the model from various experiments and predict novel channels to search for these Higgs scalars at the LHC. In particular, experiments looking for lepton jets are among potentially important searches.
C1 [Lee, Hye-Sung; Sher, Marc] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
[Lee, Hye-Sung] Ctr Theory, Jefferson Lab, Newport News, VA 23606 USA.
RP Lee, HS (reprint author), Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
FU U.S. DOE [DE-AC05-06OR23177]; NSF [PHY-1068008]
FX This work was supported in part by the U.S. DOE under Grant No.
DE-AC05-06OR23177 (JLab) and in part by the NSF under Grant No.
PHY-1068008 (W&M). We thank P. Ferreira and R. Santos for useful
discussions about the code that was used, after modification, to
generate some numerical results, and ATLAS experimenters A. Hass, E.
Strauss, and G. Watts for discussions about their muon-jet analysis.
H.-S.L. thanks H. Davoudiasl, I. Lewis, and W. Marciano for many helpful
discussions during the dark Z projects.
NR 65
TC 16
Z9 16
U1 0
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 10
PY 2013
VL 87
IS 11
AR 115009
DI 10.1103/PhysRevD.87.115009
PG 13
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161BN
UT WOS:000320165700002
ER
PT J
AU Segovia, J
Hernandez, E
Fernandez, F
Entem, DR
AF Segovia, J.
Hernandez, E.
Fernandez, F.
Entem, D. R.
TI B decays into radially excited charmed mesons
SO PHYSICAL REVIEW D
LA English
DT Article
ID SEMILEPTONIC DECAYS; QUARK-MODEL
AB It has been recently argued that some longstanding problems in semileptonic B decays can be solved provided the branching ratio for the B -> D'(()*()) semileptonic decays are large enough. We have studied these decays in a constituent quark model, which has been successful in describing semileptonic and nonleptonic B decays into orbitally excited charmed mesons. Our results do not confirm the hypothesis of large branching ratios for the B -> D'(()*()) semileptonic decays. In addition, we calculate the nonleptonic B -> D'pi decays which can provide an independent test of the form factors involved in the B -> D'(()*()) reactions.
C1 [Segovia, J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Hernandez, E.; Fernandez, F.; Entem, D. R.] Univ Salamanca, Dept Fis Fundamental, E-37008 Salamanca, Spain.
[Hernandez, E.; Fernandez, F.; Entem, D. R.] Univ Salamanca, IUFFyM, E-37008 Salamanca, Spain.
RP Segovia, J (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RI Segovia, Jorge/C-7202-2015; Hernandez, Eliecer/B-2370-2014; Entem,
David/H-8435-2014
OI Segovia, Jorge/0000-0001-5838-7103; Hernandez,
Eliecer/0000-0003-3468-1513; Entem, David/0000-0003-2376-6255
FU Ministerio de Ciencia y Tecnologia [FPA2010-21750-C02-02,
FIS2011-28853-C02-02]; European Community-Research Infrastructure
Integrating Activity 'Study of Strongly Interacting Matter'
(HadronPhysics3 Grant) [283286]; Spanish Ingenio-Consolider Program CPAN
[CSD2007-00042]; U.S. Department of Energy, Office of Nuclear Physics
[DE-AC02-06CH11357]
FX This work has been partially funded by Ministerio de Ciencia y
Tecnologia under Contracts No. FPA2010-21750-C02-02 and No.
FIS2011-28853-C02-02, by the European Community-Research Infrastructure
Integrating Activity 'Study of Strongly Interacting Matter'
(HadronPhysics3 Grant No. 283286) by the Spanish Ingenio-Consolider 2010
Program CPAN (CSD2007-00042) and by U.S. Department of Energy, Office of
Nuclear Physics, Contract No. DE-AC02-06CH11357.
NR 18
TC 9
Z9 10
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 10
PY 2013
VL 87
IS 11
AR 114009
DI 10.1103/PhysRevD.87.114009
PG 5
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 161BN
UT WOS:000320165700001
ER
PT J
AU Blazevski, D
del-Castillo-Negrete, D
AF Blazevski, Daniel
del-Castillo-Negrete, Diego
TI Local and nonlocal anisotropic transport in reversed shear magnetic
fields: Shearless Cantori and nondiffusive transport
SO PHYSICAL REVIEW E
LA English
DT Article
ID PRESERVING NONTWIST MAPS; HAMILTONIAN-SYSTEMS; PERIODIC-ORBITS;
RECONNECTION; TRANSITION; LINES; CHAOS
AB A study of anisotropic heat transport in reversed shear (nonmonotonic q-profile) magnetic fields is presented. The approach is based on a recently proposed Lagrangian-Green's function method that allows an efficient and accurate integration of the parallel (i.e., along the magnetic field) heat transport equation. The magnetic field lines are described by a nontwist Hamiltonian system, known to exhibit separatrix reconnection and robust shearless (dq/dr = 0) transport barriers. The changes in the magnetic field topology due to separatrix reconnection lead to bifurcations in the equilibrium temperature distribution. For perturbations of moderate amplitudes, magnetic chaos is restricted to bands flanking the shearless region. As a result, the temperature flattens in the chaotic bands and develops a very sharp radial gradient at the shearless region. For perturbations with larger amplitude, shearless Cantori (i.e., critical magnetic surfaces located at the minimum of the q profile) give rise to anomalous temperature relaxation involving widely different time scales. The first stage consists of the relatively fast flattening of the radial temperature profile in the chaotic bands with negligible flux across the shearless region that, for practical purposes, on a short time scale acts as an effective transport barrier despite the lack of magnetic flux surfaces. In the long-time scale, heat starts to flow across the shearless region, albeit at a comparatively low rate. The transport of a narrow temperature pulse centered at the reversed shear region exhibits weak self-similar scaling with non-Gaussian scaling functions indicating that transport at this scale cannot be modeled as a diffusive process with a constant diffusivity. Evidence of nonlocal effective radial transport is provided by the existence of regions with nonzero heat flux and zero temperature gradient. Parametric flux-gradient plots exhibit multivalued loops that question the applicability of the Fourier-Fick's prescription even in the presence of a finite pinch velocity.
C1 [Blazevski, Daniel] Swiss Fed Inst Technol, Inst Mech Syst, CH-8092 Zurich, Switzerland.
[del-Castillo-Negrete, Diego] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Blazevski, D (reprint author), Swiss Fed Inst Technol, Inst Mech Syst, CH-8092 Zurich, Switzerland.
OI del-Castillo-Negrete, Diego/0000-0001-7183-801X
FU Office of Fusion Energy Sciences of the US Department of Energy at Oak
Ridge National Laboratory; UT-Battelle, LLC, for the US Department of
Energy [DE-AC05-00OR22725]
FX This work was sponsored by the Office of Fusion Energy Sciences of the
US Department of Energy at Oak Ridge National Laboratory, managed by
UT-Battelle, LLC, for the US Department of Energy under Contract No.
DE-AC05-00OR22725. The authors thank Luis Chacon for providing the code
implementing the LG method. D. B. acknowledges the hospitality of the
Oak Ridge National Laboratory and the School of Mathematics at The
Georgia Institute of Technology during the elaboration of this work.
NR 20
TC 6
Z9 6
U1 1
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 10
PY 2013
VL 87
IS 6
AR 063106
DI 10.1103/PhysRevE.87.063106
PG 15
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 161BT
UT WOS:000320166600017
PM 23848788
ER
PT J
AU Chern, GW
Reichhardt, C
Reichhardt, CJO
AF Chern, Gia-Wei
Reichhardt, C.
Reichhardt, C. J. Olson
TI Frustrated colloidal ordering and fully packed loops in arrays of
optical traps
SO PHYSICAL REVIEW E
LA English
DT Article
ID ARTIFICIAL SPIN-ICE; MONOLAYERS; LATTICE; MODEL; SURFACES; ENTROPY
AB We propose that a system of colloidal particles interacting with a honeycomb array of optical traps that each contain three wells can be used to realize a fully packed loop model. One of the phases in this system can be mapped to Baxter's three-coloring problem, offering an easily accessible physical realization of this problem. As a function of temperature and interaction strength, we find a series of phases, including long range ordered loop or stripe states, stripes with sliding symmetries, random packed loop states, and disordered states in which the loops break apart. Our geometry could be constructed using ion trap arrays, BEC vortices in optical traps, or magnetic vortices in nanostructured superconductors.
C1 [Chern, Gia-Wei] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Chern, GW (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
OI Reichhardt, Cynthia/0000-0002-3487-5089
FU NNSA of the US DoE at LANL [DE-AC52-06NA25396]
FX This work was carried out under the auspices of the NNSA of the US DoE
at LANL under Contract No. DE-AC52-06NA25396.
NR 48
TC 6
Z9 6
U1 0
U2 19
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 10
PY 2013
VL 87
IS 6
AR 062305
DI 10.1103/PhysRevE.87.062305
PG 5
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 161BT
UT WOS:000320166600010
PM 23848673
ER
PT J
AU Grabowski, PE
Markmann, A
Morozov, IV
Valuev, IA
Fichtl, CA
Richards, DF
Batista, VS
Graziani, FR
Murillo, MS
AF Grabowski, Paul E.
Markmann, Andreas
Morozov, Igor V.
Valuev, Ilya A.
Fichtl, Christopher A.
Richards, David F.
Batista, Victor S.
Graziani, Frank R.
Murillo, Michael S.
TI Wave packet spreading and localization in electron-nuclear scattering
SO PHYSICAL REVIEW E
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; SCHRODINGER-EQUATION; EXTREME
CONDITIONS; DENSE MATTER; LARGE-SCALE; HYDROGEN; PLASMAS; FORMULATION;
POTENTIALS; SYSTEM
AB The wave packet molecular dynamics (WPMD) method provides a variational approximation to the solution of the time-dependent Schrodinger equation. Its application in the field of high-temperature dense plasmas has yielded diverging electron width (spreading), which results in diminishing electron-nuclear interactions. Electron spreading has previously been ascribed to a shortcoming of the WPMD method and has been counteracted by various heuristic additions to the models used. We employ more accurate methods to determine if spreading continues to be predicted by them and how WPMD can be improved. A scattering process involving a single dynamic electron interacting with a periodic array of statically screened protons is used as a model problem for comparison. We compare the numerically exact split operator Fourier transform method, the Wigner trajectory method, and the time-dependent variational principle (TDVP). Within the framework of the TDVP, we use the standard variational form of WPMD, the single Gaussian wave packet (WP), as well as a sum of Gaussian WPs, as in the split WP method. Wave packet spreading is predicted by all methods, so it is not the source of the unphysical diminishing of electron-nuclear interactions in WPMD at high temperatures. Instead, the Gaussian WP's inability to correctly reproduce breakup of the electron's probability density into localized density near the protons is responsible for the deviation from more accurate predictions. Extensions of WPMD must include a mechanism for breakup to occur in order to yield dynamics that lead to accurate electron densities.
C1 [Grabowski, Paul E.; Fichtl, Christopher A.] Los Alamos Natl Lab, Computat Phys & Methods Grp, Los Alamos, NM 87545 USA.
[Markmann, Andreas; Batista, Victor S.] Yale Univ, Dept Chem, New Haven, CT 06520 USA.
[Morozov, Igor V.; Valuev, Ilya A.] Joint Inst High Temperatures RAS, Moscow 125412, Russia.
[Richards, David F.; Graziani, Frank R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Grabowski, PE (reprint author), Los Alamos Natl Lab, Computat Phys & Methods Grp, Los Alamos, NM 87545 USA.
EM grabowski@lanl.gov; andreas.markmann@yale.edu
RI Morozov, Igor/C-6657-2014; Valuev, Ilya/E-6248-2014
OI Morozov, Igor/0000-0002-0122-9400; Valuev, Ilya/0000-0002-7918-9306
FU US Department of Energy by Lawrence Livermore National Laboratory (LLNL)
[DE-AC52-07NA27344]; Los Alamos National Laboratory [DE-AC52-06NA25396];
US Department of Energy; Laboratory Directed Research and Development
Program at LLNL [09-SI-011]; Programs of Fundamental Research of RAS [2,
14, 15]; Russian Foundation for Basic Research [12-02-31783,
12-02-33170]; Sandia National Laboratories under the US DOE/NNSA
Advanced Simulation and Computing program
FX Parts of this work were performed under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory (LLNL)
under Contract DE-AC52-07NA27344 and parts have been authored by
employees of the Los Alamos National Security, LLC, operator of the Los
Alamos National Laboratory under Contract No. DE-AC52-06NA25396 also
with the US Department of Energy. P. E. G., A. M., M. S. M., C. A. F.,
D. F. R., V. S. B., and F. R. G. are members of the Cimarron
collaboration and were funded by the Laboratory Directed Research and
Development Program at LLNL under Project No. 09-SI-011. I. V. M. and I.
A. V. acknowledge support from the Programs of Fundamental Research of
RAS No. 2, No. 14, and No. 15; Russian Foundation for Basic Research
(Grants No. 12-02-31783 and No. 12-02-33170); and Sandia National
Laboratories under the US DOE/NNSA Advanced Simulation and Computing
program. We would like to thank James N. Glosli for helpful discussion
on implementing the WTM.
NR 50
TC 8
Z9 8
U1 0
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD JUN 10
PY 2013
VL 87
IS 6
AR 063104
DI 10.1103/PhysRevE.87.063104
PG 12
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 161BT
UT WOS:000320166600015
PM 23848786
ER
PT J
AU Chen, AQ
Miller, RL
DePrince, AE
Joshi-Imre, A
Shevchenko, E
Ocola, LE
Gray, SK
Welp, U
Vlasko-Vlasov, VK
AF Chen, Aiqing
Miller, Ryan L.
DePrince, A. Eugene, III
Joshi-Imre, Alexandra
Shevchenko, Elena
Ocola, Leonidas E.
Gray, Stephen K.
Welp, Ulrich
Vlasko-Vlasov, Vitalii K.
TI Plasmonic Amplifiers: Engineering Giant Light Enhancements by Tuning
Resonances in Multiscale Plasmonic Nanostructures
SO SMALL
LA English
DT Article
ID RAMAN-SCATTERING; GOLD NANOPARTICLES; METAL NANOPARTICLES;
OPTICAL-PROPERTIES; SURFACE; SPECTROSCOPY; ARRAYS; FLUORESCENCE; SERS;
FILM
AB The unique ability of plasmonic nanostructures to guide, enhance, and manipulate subwavelength light offers multiple novel applications in chemical and biological sensing, imaging, and photonic microcircuitry. Here the reproducible, giant light amplification in multiscale plasmonic structures is demonstrated. These structures combine strongly coupled components of different dimensions and topologies that resonate at the same optical frequency. A light amplifier is constructed using a silver mirror carrying light-enhancing surface plasmons, dielectric gratings forming distributed Bragg cavities on top of the mirror, and gold nanoparticle arrays self-assembled into the grating grooves. By tuning the resonances of the individual components to the same frequency, multiple enhancement of the light intensity in the nanometer gaps between the particles is achieved. Using a monolayer of benzenethiol molecules on this structure, an average SERS enhancement factor < EF > approximate to 108 is obtained, and the maximum enhancement in the interparticle hot-spots is approximate to 3 x 1010, in good agreement with FDTD calculations. The high enhancement factor, large density of well-ordered hot-spots, and good fidelity of the SERS signal make this design a promising platform for quantitative SERS sensing, optical detection, efficient solid state lighting, advanced photovoltaics, and other emerging photonic applications.
C1 [Chen, Aiqing; Welp, Ulrich; Vlasko-Vlasov, Vitalii K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Miller, Ryan L.; DePrince, A. Eugene, III; Joshi-Imre, Alexandra; Shevchenko, Elena; Ocola, Leonidas E.; Gray, Stephen K.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Chen, AQ (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM aiqingchen@anl.gov; vlasko-vlasov@anl.gov
RI Joshi-Imre, Alexandra/A-2912-2010;
OI Joshi-Imre, Alexandra/0000-0002-4271-1623; Ocola,
Leonidas/0000-0003-4990-1064
NR 71
TC 12
Z9 12
U1 3
U2 121
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1613-6810
EI 1613-6829
J9 SMALL
JI Small
PD JUN 10
PY 2013
VL 9
IS 11
BP 1939
EP 1946
DI 10.1002/smll.201202216
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 156PC
UT WOS:000319833700010
PM 23281210
ER
PT J
AU Ding, W
Hsu, CH
Hernandez, O
Chapman, B
Graham, R
AF Ding, Wei
Hsu, Chung-Hsing
Hernandez, Oscar
Chapman, Barbara
Graham, Richard
TI KLONOS: Similarity-based planning tool support for porting scientific
applications
SO CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
LA English
DT Article
DE source code similarity; software porting strategies; code clone
detection tools
ID OPEN SOURCE SOFTWARE
AB In this paper, we propose a methodology to address an important aspect of software porting that receives little attention, namely planning support. When a scientific application consisting of many subroutines is to be ported, the selection of key subroutines greatly impacts the productivity and overall porting strategy because these subroutines may represent a significant feature of the code in terms of functionality, code structure, or performance. They may as well serve as indicators of the difficulty and amount of effort involved in porting a code to a new platform. The proposed methodology is based on the idea that a set of similar subroutines can be ported with similar strategies and result in a similar-quality porting. By viewing subroutines as data and operator sequences, analogous to DNA sequences, we are able to use various bioinformatics techniques to conduct the similarity analysis of subroutines while mitigating NP-complete challenges of other approaches. To the best of our knowledge, we are one of the first to explore this bio-inspired view of program to target the porting planning problem. In this paper, we describe our methodology and present a tool called Klonos to facilitate the execution of the methodology, which integrates to well known bioinformatics tools. As a proof of concept, we use Klonos to conduct experiments to find strategies for porting of several scientific benchmarks and applications. We also have identified some of the advantages and limitations of the bio-inspired view of a program code and the future work. Copyright (c) 2012 John Wiley & Sons, Ltd.
C1 [Ding, Wei; Chapman, Barbara] Univ Houston, Dept Comp Sci, Houston, TX 77204 USA.
[Hsu, Chung-Hsing; Hernandez, Oscar; Graham, Richard] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN USA.
RP Ding, W (reprint author), Univ Houston, Dept Comp Sci, Houston, TX 77204 USA.
EM wding3@cs.uh.edu
FU ORAU/ORNL High Performance Computing Grant Program; Laboratory Directed
Research and Development Program of Oak Ridge National Laboratory; US
Department of Energy [DE-AC05-00OR22725]; NSF [CCF-0917285]; National
Science Foundation
FX This work is funded by 2012 ORAU/ORNL High Performance Computing Grant
Program and by the Laboratory Directed Research and Development Program
of Oak Ridge National Laboratory, managed by UT-Battelle, LLC for the US
Department of Energy under Contract No. DE-AC05-00OR22725. This work was
also funded by NSF CCF-0917285. This research was supported by an
allocation of advanced computing resources provided by the National
Science Foundation. The computations were performed on Nautilus at the
National Institute for Computational Sciences
(http://www.nics.tennessee.edu/).
NR 29
TC 4
Z9 4
U1 0
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1532-0626
EI 1532-0634
J9 CONCURR COMP-PRACT E
JI Concurr. Comput.-Pract. Exp.
PD JUN 10
PY 2013
VL 25
IS 8
SI SI
BP 1072
EP 1088
DI 10.1002/cpe.2903
PG 17
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA 132BK
UT WOS:000318042500005
ER
PT J
AU Sun, X
Choi, KS
Li, DS
AF Sun, X.
Choi, K. S.
Li, D. S.
TI Predicting the influence of pore characteristics on ductility of
thin-walled high pressure die casting magnesium
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Mg castings; Ductility; Microstructure; Pore size; Pore volume fraction;
Finite element analysis (FEA)
ID TENSILE PROPERTIES; MG-ALLOY; AM50; MICROSTRUCTURE; SCALE; VARIABILITY;
PLASTICITY; STRENGTH; BEHAVIOR; POROSITY
AB In this paper, a two-dimensional microstructure-based finite element modeling method is adopted to investigate the effects of porosity in thin-walled high pressure die casting Mg materials on their ductility. For this purpose, the cross-sections of AM50 and AM60 casting samples are first examined using optical microscope to obtain the overall information on the pore characteristics. The experimentally quantified pore characteristics are then used to generate a series of synthetic microstructures with different pore sizes, pore volume fractions and pore size distributions. Pores are explicitly represented in the synthetic microstructures and meshed out for the subsequent finite element analysis. In the finite element analysis, an intrinsic critical strain value is used for the Mg matrix material, beyond which work-hardening is no longer permissible. With no artificial failure criterion prescribed, ductility levels are predicted for the various microstructures in the form of strain localization. Mesh size effect study is also conducted, from which a mesh size dependent critical strain curve is determined. A concept of scalability of pore size effects is then presented and examined with the use of the mesh size dependent critical strain curve. The results in this study show that, for the regions with lower pore size and lower volume fraction, the ductility generally decreases as the pore size and pore volume fraction increase whereas, for the regions with larger pore size and larger pore volume fraction, other factors such as the mean distance between the pores begin to have some substantial influence on the ductility. The results also indicate that the pore size effects may be scalable for the models with good-representative pore shape and distribution with the use of the mesh size dependent critical strain curve. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Sun, X.; Choi, K. S.; Li, D. S.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Sun, X (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM xin.sun@pnnl.gov
FU US Department of Energy [DE-AC05-76RL01830]; Department of Energy Office
of FreedomCar and Vehicle Technologies under the Automotive
Lightweighting Materials Program; Department of Energy's Office of
Biological and Environmental Research
FX Pacific Northwest National Laboratory is operated by Battelle Memorial
Institute for the US Department of Energy under Contract no.
DE-AC05-76RL01830. This work was funded by the Department of Energy
Office of FreedomCar and Vehicle Technologies under the Automotive
Lightweighting Materials Program managed by Mr. William Joost. The
authors would also like to acknowledge the help of Dr. Tamas Varga and
Alexa Chua in conducting the X-ray tomography and microscopy. X-ray
tomography was performed at Environmental Molecular Sciences Laboratory,
a national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research.
NR 31
TC 11
Z9 13
U1 2
U2 29
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD JUN 10
PY 2013
VL 572
BP 45
EP 55
DI 10.1016/j.msea.2013.02.026
PG 11
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 133MJ
UT WOS:000318142200007
ER
PT J
AU Jensen, JK
Johnson, N
Wilkerson, CG
AF Jensen, Jacob K.
Johnson, Nathan
Wilkerson, Curtis G.
TI Discovery of diversity in xylan biosynthetic genes by transcriptional
profiling of a heteroxylan containing mucilaginous tissue
SO FRONTIERS IN PLANT SCIENCE
LA English
DT Article
DE xylan; psyllium; secondary cell wall; irx; glycosyltransferase; mucilage
ID SECONDARY CELL-WALL; CELLULOSE SYNTHASE COMPLEXES; ARABIDOPSIS SEED
COAT; GLUCURONOXYLAN BIOSYNTHESIS; O-ACETYLATION; POLYSACCHARIDE
BIOSYNTHESIS; UDP-ARABINOFURANOSE; FAMILY; PROTEINS; IDENTIFICATION
AB The exact biochemical steps of xylan backbone synthesis remain elusive. In Arabidopsis, three non-redundant genes from two glycosyltransferase (GT) families, IRX9 and IRX14 from GT43 and IRX10 from GT47, are candidates for forming the xylan backbone. In other plants, evidence exists that different tissues express these three genes at widely different levels, which suggests that diversity in the makeup of the xylan synthase complex exists. Recently we have profiled the transcripts present in the developing mucilaginous tissue of psyllium (Plantago ovata Forsk). This tissue was found to have high expression levels of an IRX10 homolog, but very low levels of the two GT43 family members. This contrasts with recent wheat endosperm tissue profiling that found a relatively high abundance of the GT43 family members. We have performed an in-depth analysis of all GTs genes expressed in four developmental stages of the psyllium mucilagenous layer and in a single stage of the psyllium stem using RNA-Seq. This analysis revealed several IRX10 homologs, an expansion in GT61 (homologs of At3g18170/At3g18180), and several GTs from other GT families that are highly abundant and specifically expressed in the mucilaginous tissue. Our current hypothesis is that the four IRX10 genes present in the mucilagenous tissues have evolved to function without the GT43 genes. These four genes represent some of the most divergent IRX10 genes identified to date. Conversely, those present in the psyllium stem are very similar to those in other eudicots. This suggests these genes are under selective pressure, likely due to the synthesis of the various xylan structures present in mucilage that has a different biochemical role than that present in secondary walls. The numerous GT61 family members also show a wide sequence diversity and may be responsible for the larger number of side chain structures present in the psyllium mucilage.
C1 [Jensen, Jacob K.; Johnson, Nathan; Wilkerson, Curtis G.] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA.
[Jensen, Jacob K.; Johnson, Nathan; Wilkerson, Curtis G.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA.
[Wilkerson, Curtis G.] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA.
RP Wilkerson, CG (reprint author), Michigan State Univ, Dept Plant Biol, 612Wilson Rd,Room 122, E Lansing, MI 48824 USA.
EM wilker13@msu.edu
OI Johnson, Nathan/0000-0002-5279-9964
FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science)
[DE-FC02-07ER64494]; Office of Science of the US Department of Energy
[DE-ACO2-05CH11231]
FX This work was supported by the DOE Great Lakes Bioenergy Research Center
(DOE BER Office of Science DE-FC02-07ER64494). We thank Christa
Pennacchio and Erika Linguist of the US Department of Energy Joint
Genome institute for high-throughput cDNA sequencing, which was
supported by the Office of Science of the US Department of Energy under
Contract No. (DE-ACO2-05CH11231). We also thank Nick Thrower for
providing the bioinformatic expertise clustering of the cDNA RNA-Seg
libraries.
NR 87
TC 14
Z9 14
U1 2
U2 17
PU FRONTIERS RESEARCH FOUNDATION
PI LAUSANNE
PA PO BOX 110, LAUSANNE, 1015, SWITZERLAND
SN 1664-462X
J9 FRONT PLANT SCI
JI Front. Plant Sci.
PD JUN 7
PY 2013
VL 4
AR 183
DI 10.3389/fpls.2013.00183
PG 15
WC Plant Sciences
SC Plant Sciences
GA 293UD
UT WOS:000329998300001
PM 23761806
ER
PT J
AU Fenning, DP
Zuschlag, AS
Bertoni, MI
Lai, B
Hahn, G
Buonassisi, T
AF Fenning, D. P.
Zuschlag, A. S.
Bertoni, M. I.
Lai, B.
Hahn, G.
Buonassisi, T.
TI Improved iron gettering of contaminated multicrystalline silicon by
high-temperature phosphorus diffusion
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SOLAR-CELLS; CARRIER LIFETIME; IMPURITIES; MECHANISMS; SI
AB The efficacy of higher-temperature gettering processes in reducing precipitated iron concentrations is assessed by synchrotron-based micro-X-ray fluorescence. By measuring the same grain boundary before and after phosphorus diffusion in a set of wafers from adjacent ingot heights, the reduction in size of individual precipitates is measured as a function of gettering temperature in samples from the top of an ingot intentionally contaminated with iron in the melt. Compared to a baseline 820 degrees C phosphorus diffusion, 870 degrees C and 920 degrees C diffusions result in a larger reduction in iron-silicide precipitate size. Minority carrier lifetimes measured on wafers from the same ingot heights processed with the same treatments show that the greater reduction in precipitated metals is associated with a strong increase in lifetime. In a sample contaminated with both copper and iron in the melt, significant iron gettering and complete dissolution of detectable copper precipitates is observed despite the higher total metal concentration. Finally, a homogenization pre-anneal in N-2 at 920 degrees C followed by an 820 degrees C phosphorus diffusion produces precipitate size reductions and lifetimes similar to an 870 degrees C phosphorus diffusion without lowering the emitter sheet resistance. (C) 2013 AIP Publishing LLC.
C1 [Fenning, D. P.; Bertoni, M. I.; Buonassisi, T.] MIT, Cambridge, MA 02139 USA.
[Zuschlag, A. S.; Hahn, G.] Univ Konstanz, Dept Phys, D-78457 Constance, Germany.
[Lai, B.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Fenning, DP (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM dfenning@alum.mit.edu; buonassisi@mit.edu
RI Hahn, Giso/D-3111-2013; Buonassisi, Tonio/J-2723-2012;
OI Fenning, David/0000-0002-4609-9312
FU U.S. Department of Energy [DE-FG36-09GO19001]; National Science
Foundation (NSF); Department of Energy (DOE) under NSF CA [EEC-1041895];
German Department of Environment and Nuclear Safety [032765H9]; Ministry
of Science, Research and the Arts of Baden-Wurttemberg, Germany; NSF;
Martin Family Society of Fellows at MIT; U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX The authors would like to thank Lisa Mahlstaedt for assistance with the
diffusions, Jorg Bernhard for assistance with EBIC and EBSD
pre-characterizations of the samples, and Bonna K. Newman for assistance
during as-grown synchrotron measurements. The U.S. portion of this work
was supported in part by the U.S. Department of Energy, contract number
DE-FG36-09GO19001, and by the National Science Foundation (NSF) and the
Department of Energy (DOE) under NSF CA No. EEC-1041895. The German
portion of this work was supported by the German Department of
Environment and Nuclear Safety in the frame of the SolarFocus project
(032765H9) as well as the Ministry of Science, Research and the Arts of
Baden-Wurttemberg, Germany. D.P.F. acknowledges the support of the NSF
Graduate Research Fellowship and the Martin Family Society of Fellows at
MIT. Use of the Advanced Photon Source at Argonne National Laboratory
was supported by the U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
NR 48
TC 24
Z9 24
U1 6
U2 32
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 7
PY 2013
VL 113
IS 21
AR 214504
DI 10.1063/1.4808310
PG 10
WC Physics, Applied
SC Physics
GA 167ZQ
UT WOS:000320674500085
ER
PT J
AU Knutsson, A
Ullbrand, J
Rogstrom, L
Norrby, N
Johnson, JS
Hultman, L
Almer, J
Joesaar, MPJ
Jansson, B
Oden, M
AF Knutsson, A.
Ullbrand, J.
Rogstrom, L.
Norrby, N.
Johnson, J. S.
Hultman, L.
Almer, J.
Joesaar, M. P. Johansson
Jansson, B.
Oden, M.
TI Microstructure evolution during the isostructural decomposition of
TiAlN-A combined in-situ small angle x-ray scattering and phase field
study
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SPINODAL DECOMPOSITION; THIN-FILMS; TI-AL; MECHANICAL-PROPERTIES; N
COATINGS; TEMPERATURE; TI1-XALXN; DEPOSITION; SYSTEM; ALUMINUM
AB This paper describes details of the spinodal decomposition and coarsening in metastable cubic Ti0.33Al0.67N and Ti0.50Al0.50N coatings during isothermal annealing, studied by in-situ small angle x-ray scattering, in combination with phase field simulations. We show that the isostructural decomposition occurs in two stages. During the initial stage, spinodal decomposition, of the Ti0.50Al0.50N alloy, the phase separation proceeds with a constant compositional wavelength of similar to 2.8 nm of the AlN-and TiN-rich domains. The time for spinodal decomposition depends on annealing temperature as well as alloy composition. After the spinodal decomposition, the coherent cubic AlN- and TiN-rich domains coarsen. The coarsening rate is kinetically limited by diffusion, which allowed us to estimate the diffusivity and activation energy of the metals to 1.4 x 10(-6) m(2) s(-1) and 3.14 eV at(-1), respectively. (C) 2013 AIP Publishing LLC.
C1 [Knutsson, A.; Ullbrand, J.; Rogstrom, L.; Norrby, N.; Joesaar, M. P. Johansson; Jansson, B.; Oden, M.] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden.
[Johnson, J. S.; Hultman, L.] Linkoping Univ, Dept Phys Chem & Biol IFM, Thin Film Phys Div, SE-58183 Linkoping, Sweden.
[Almer, J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Joesaar, M. P. Johansson; Jansson, B.] Seco Tools AB, SE-73782 Fagersta, Sweden.
RP Oden, M (reprint author), Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden.
EM magod@ifm.liu.se
RI Norrby, Niklas/I-1478-2013; Oden, Magnus/E-9662-2010;
OI Norrby, Niklas/0000-0002-1956-9075; Oden, Magnus/0000-0002-2286-5588;
Rogstrom, Lina/0000-0002-0866-1909
FU SSF project Designed Multicomponent Coatings, MultiFilms; Swedish
Research Council (VR); VINNEX Center of Excellence on Functional
Nanoscale Materials (FunMat); U. S. Department of Energy, Office of
Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
FX This work was supported by the SSF project Designed Multicomponent
Coatings, MultiFilms, the Swedish Research Council (VR), and the VINNEX
Center of Excellence on Functional Nanoscale Materials (FunMat). The use
of the Advanced Photon Source was supported by the U. S. Department of
Energy, Office of Science, Office of Basic Energy Sciences under
Contract No. DE-AC02-06CH11357.
NR 46
TC 24
Z9 24
U1 2
U2 26
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 7
PY 2013
VL 113
IS 21
AR 213518
DI 10.1063/1.4809573
PG 8
WC Physics, Applied
SC Physics
GA 167ZQ
UT WOS:000320674500034
ER
PT J
AU Royer, ZL
Tackes, C
LeSar, R
Napolitano, RE
AF Royer, Z. L.
Tackes, C.
LeSar, R.
Napolitano, R. E.
TI Coil optimization for electromagnetic levitation using a genetic like
algorithm
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID METALS; DENSITY; DESIGN; ALLOYS; SOLIDIFICATION; CALORIMETRY;
TEMPERATURE; NETWORK; AU; FE
AB The technique of electromagnetic levitation (EML) provides a means for thermally processing an electrically conductive specimen in a containerless manner. For the investigation of metallic liquids and related melting or freezing transformations, the elimination of substrate-induced nucleation affords access to much higher undercooling than otherwise attainable. With heating and levitation both arising from the currents induced by the coil, the performance of any EML system depends on controlling the balance between lifting forces and heating effects, as influenced by the levitation coil geometry. In this work, a genetic algorithm is developed and utilized to optimize the design of electromagnetic levitation coils. The optimization is targeted specifically to reduce the steady-state temperature of the stably levitated metallic specimen. Reductions in temperature of nominally 70K relative to that obtained with the initial design are achieved through coil optimization, and the results are compared with experiments for aluminum. Additionally, the optimization method is shown to be robust, generating a small range of converged results from a variety of initial starting conditions. While our optimization criterion was set to achieve the lowest possible sample temperature, the method is general and can be used to optimize for other criteria as well. (C) 2013 AIP Publishing LLC.
C1 [Royer, Z. L.; Tackes, C.; LeSar, R.; Napolitano, R. E.] US DOE, Ames Lab, Ames, IA 50011 USA.
[Royer, Z. L.; Tackes, C.; LeSar, R.; Napolitano, R. E.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Napolitano, RE (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA.
EM ralphn@iastate.edu
FU US Department of Energy, Office of Basic Energy Science, Division of
Material Sciences and Engineering; Iowa State University
[DE-AC02-07CH11358]
FX This work was supported by the US Department of Energy, Office of Basic
Energy Science, Division of Material Sciences and Engineering. The
research was performed at Ames Laboratory, Ames Laboratory is operated
for the US Department of Energy by Iowa State University under Contract
No. DE-AC02-07CH11358. The authors would like to thank Dr. Nicola Bowler
for valuable discussions in the development of this work.
NR 28
TC 3
Z9 3
U1 8
U2 30
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 7
PY 2013
VL 113
IS 21
AR 214901
DI 10.1063/1.4807788
PG 9
WC Physics, Applied
SC Physics
GA 167ZQ
UT WOS:000320674500093
ER
PT J
AU Shen, T
Ghosh, A
Cooley, L
Jiang, J
AF Shen, T.
Ghosh, A.
Cooley, L.
Jiang, J.
TI Role of internal gases and creep of Ag in controlling the critical
current density of Ag-sheathed Bi2Sr2CaCu2Ox wires
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SUPERCONDUCTING TAPES; BI-2212 TAPES; MELT PROCESS; SILVER; DEFORMATION;
FABRICATION; TECHNOLOGY; CONDUCTORS; CARBON; LENGTH
AB High engineering critical current density J(E) of > 500 A/mm(2) at 20 T and 4.2K can be regularly achieved in Ag-sheathed multifilamentary Bi(2)Sr(2)CaCu(2)Ox (Bi-2212) round wire when the sample length is several centimeters. However, J(E)(20 T) in Bi-2212 wires of several meters length, as well as longer pieces wound in coils, rarely exceeds 200 A/mm(2). Moreover, long-length wires often exhibit signs of Bi-2212 leakage after melt processing that are rarely found in short, open-end samples. We studied the length dependence of J(E) of state-of-the-art powder-in-tube (PIT) Bi-2212 wires and gases released by them during melt processing using mass spectroscopy, confirming that J(E) degradation with length is due to wire swelling produced by high internal gas pressures at elevated temperatures [A. Malagoli et al. Supercond. Sci. Technol. 24, 075016 (2011) and A. Malagoli et al. Supercond. Sci. Technol. 26, 055018 (2013)]. We further modeled the gas transport in Bi-2212 wires and examined the wire expansion at critical stages of the melt processing of as-drawn PIT wires and the wires that received a degassing treatment or a cold-densification treatment before melt processing. These investigations showed that internal gas pressure in long-length wires drives creep of the Ag sheath during the heat treatment, causing wire to expand, lowering the density of Bi-2212 filaments, and therefore degrading the wire JE; the creep rupture of silver sheath naturally leads to the leakage of Bi-2212 liquid. Our work shows that proper control of such creep is the key to preventing Bi-2212 leakage and achieving high JE in long-length Bi-2212 conductors and coils. (C) 2013 AIP Publishing LLC.
C1 [Shen, T.; Cooley, L.] Fermilab Natl Accelerator Lab, Tech Div, Batavia, IL 60510 USA.
[Ghosh, A.] Brookhaven Natl Lab, Superconducting Magnet Div, Brookhaven, NY 11973 USA.
[Jiang, J.] Florida State Univ, Natl High Magnet Field Lab, Ctr Appl Superconduct, Tallahassee, FL 32310 USA.
RP Shen, T (reprint author), Fermilab Natl Accelerator Lab, Tech Div, POB 500, Batavia, IL 60510 USA.
EM tshen@fnal.gov
RI Cooley, Lance/E-7377-2015; Jiang, Jianyi/F-2549-2017
OI Cooley, Lance/0000-0003-3488-2980; Jiang, Jianyi/0000-0002-1094-2013
FU Office of Science at the U.S. Department of Energy (DOE)
[DE-AC02-07CH11359]; U.S. DOE [DE-AC02-98CH10886]; U.S. DOE Early Career
Research Program Award
FX Work at Fermilab was supported by the Office of Science at the U.S.
Department of Energy (DOE) under Contract No. DE-AC02-07CH11359. Work at
Brookhaven National Lab was supported by the U.S. DOE under Contract No.
DE-AC02-98CH10886. T.S. was partially supported by a Fiscal Year 2012
U.S. DOE Early Career Research Program Award. We thank members of the
Very High Field Superconducting Magnet Collaboration (VHFSMC) and the
Bi-2212 Strand and Cable Collaboration (BSCCo), especially A.
Tollestrup, D. Larbalestier, E. Hellstrom, Y. Huang H. Miao, J. Parrell,
and S. Hong, for useful support and valuable discussions. We also thank
M. Bossert, P. Li, E. Sperry, J. D'Ambra, D. Turrioni, J. Krambis, R.
Mahoney, and M. Reynolds, for technical support.
NR 41
TC 21
Z9 21
U1 1
U2 14
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 7
PY 2013
VL 113
IS 21
AR 213901
DI 10.1063/1.4807795
PG 10
WC Physics, Applied
SC Physics
GA 167ZQ
UT WOS:000320674500047
ER
PT J
AU Vignes, RM
Becker, R
Stolken, J
Kumar, M
AF Vignes, Ryan M.
Becker, Richard
Stoelken, James
Kumar, Mukul
TI An assessment of diamond anvil cell measurements on material strength
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID HIGH-PRESSURE CELLS; HYDROSTATIC-PRESSURE; ULTRAHIGH PRESSURES;
FLOW-STRESS; FRICTION; COMPRESSION; COEFFICIENT; TECHNOLOGY; ASPERITY;
METAL
AB Diamond anvil cell (DAC) experiments have been used in various studies to determine plastic flow strength in ductile metals at high pressure. To gain insight into the experiments and assess how accurately the material's strength at pressure can be determined, finite element simulations of DAC experiments are performed. In the analyses, constitutive responses are assumed for the diamonds and the vanadium test specimen; within the constitutive models, the pressure dependence of the strength is prescribed. The quantities typically measured during experiments are extracted from the simulations and analyzed in an identical manner as the experimental data would be to obtain the pressure dependent flow strength. This computed pressure dependent strength is then compared with the prescribed input, allowing the accuracy and sensitivities of the experimental technique to be evaluated. Recommendations are made to improve the accuracy of strength determinations. (C) 2013 AIP Publishing LLC.
C1 [Vignes, Ryan M.; Stoelken, James; Kumar, Mukul] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Becker, Richard] US Army Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Vignes, RM (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM mukul@llnl.gov
RI Becker, Richard/I-1196-2013
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX This work performed under the auspices of the U.S. Department of Energy
by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344.
NR 31
TC 2
Z9 2
U1 2
U2 33
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUN 7
PY 2013
VL 113
IS 21
AR 213503
DI 10.1063/1.4807786
PG 10
WC Physics, Applied
SC Physics
GA 167ZQ
UT WOS:000320674500019
ER
PT J
AU Ledee, D
Portman, MA
Kajimoto, M
Isern, N
Olson, AK
AF Ledee, Dolena
Portman, Michael A.
Kajimoto, Masaki
Isern, Nancy
Olson, Aaron K.
TI Thyroid Hormone Reverses Aging-Induced Myocardial Fatty Acid Oxidation
Defects and Improves the Response to Acutely Increased Afterload
SO PLOS ONE
LA English
DT Article
ID C-13 ISOTOPOMER ANALYSIS; SUBSTRATE METABOLISM; HEART-FAILURE;
RAT-HEART; CARDIAC-FUNCTION; FAILING HEART; ACETYL-COA; DYSFUNCTION;
DISEASE; CARDIOMYOPATHY
AB Background: Subclinical hypothyroidism occurs during aging in humans and mice and may contribute to the development of heart failure. Aging also impairs myocardial fatty acid oxidation, causing increased reliance on flux through pyruvate dehydrogenase (PDH) to maintain function. We hypothesize that the metabolic changes in aged hearts make them less tolerant to acutely increased work and that thyroid hormone supplementation reverses these defects.
Methods: Studies were performed on young (Young, 4-6 months) and aged (Old, 22-24 months) C57/BL6 mice at standard (50 mmHg) and high afterload (80 mmHg). Another aged group received thyroid hormone for 3 weeks (Old-TH, high afterload only). Function was measured in isolated working hearts along with substrate fractional contributions (Fc) to the citric acid cycle (CAC) using perfusate with C-13 labeled lactate, pyruvate, glucose and unlabeled palmitate and insulin.
Results: Old mice maintained cardiac function under standard workload conditions, despite a marked decrease in unlabeled (presumably palmitate) Fc and relatively similar individual carbohydrate contributions. However, old mice exhibited reduced palmitate oxidation with diastolic dysfunction exemplified by lower -dP/dT. Thyroid hormone abrogated the functional and substrate flux abnormalities in aged mice.
Conclusion: The aged heart shows diminished ability to increase cardiac work due to substrate limitations, primarily impaired fatty acid oxidation. The heart accommodates slightly by increasing efficiency through oxidation of carbohydrate substrates. Thyroid hormone supplementation in aged mice significantly improves cardiac function potentially through restoration of fatty acid oxidation.
C1 [Ledee, Dolena; Portman, Michael A.; Kajimoto, Masaki; Olson, Aaron K.] Seattle Childrens Res Inst, Seattle, WA USA.
[Portman, Michael A.; Olson, Aaron K.] Univ Washington, Dept Pediat, Div Cardiol, Seattle, WA 98195 USA.
[Isern, Nancy] Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA.
RP Olson, AK (reprint author), Seattle Childrens Res Inst, Seattle, WA USA.
EM Aaron.olson@seattlechildrens.org
RI Isern, Nancy/J-8016-2013;
OI Isern, Nancy/0000-0001-9571-8864
FU National Heart, Lung, and Blood Institute [K08-HL-092333]; National
Institute of Aging [R21-AG-033815]; Department of Energy's Office of
Biological and Environmental Research
FX This work was supported by the National Heart, Lung, and Blood Institute
Grant K08-HL-092333 to A.K.O. and National Institute of Aging
R21-AG-033815 to M.A.P. A portion of the research was performed using
EMSL, a national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research and located at
Pacific Northwest National Laboratory. The funders had no role in study
design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 31
TC 5
Z9 5
U1 0
U2 1
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 7
PY 2013
VL 8
IS 6
AR e65532
DI 10.1371/journal.pone.0065532
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 173QU
UT WOS:000321094800058
PM 23762386
ER
PT J
AU Williams, PT
Franklin, BA
AF Williams, Paul T.
Franklin, Barry A.
TI Reduced Incidence of Cardiac Arrhythmias in Walkers and Runners
SO PLOS ONE
LA English
DT Article
ID LONE ATRIAL-FIBRILLATION; HEART-DISEASE RISK; OF-SPORTS-MEDICINE;
PHYSICAL-ACTIVITY; FOLLOW-UP; VIGOROUS EXERCISE; PUBLIC-HEALTH;
OLDER-ADULTS; MEN; WALKING
AB Purpose: Walking is purported to reduce the risk of atrial fibrillation by 48%, whereas jogging is purported to increase its risk by 53%, suggesting a strong anti-arrhythmic benefit of walking over running. The purpose of these analyses is to compare incident self-reported physician-diagnosed cardiac arrhythmia to baseline energy expenditure (metabolic equivalent hours per day, METhr/d) from walking, running and other exercise.
Methods: Proportional hazards analysis of 14,734 walkers and 32,073 runners.
Results: There were 1,060 incident cardiac arrhythmias (412 walkers, 648 runners) during 6.2 years of follow-up. The risk for incident cardiac arrhythmias declined 4.4% per baseline METhr/d walked by the walkers, or running in the runners (P = 0.0001). Specifically, the risk declined 14.2% (hazard ratio: 0.858) for 1.8 to 3.6 METhr/d, 26.5% for 3.6 to 5.4 METhr/d, and 31.7% for >= 5.4 METhr/d, relative to <1.8 METhr/d. The risk reduction per METhr/d was significantly greater for walking than running (P < 0.01), but only because walkers were at 34% greater risk than runners who fell below contemporary physical activity guideline recommendations; otherwise the walkers and runners had similar risks for cardiac arrhythmias. Cardiac arrhythmias were unrelated to walking and running intensity, and unrelated to marathon participation and performance.
Conclusions: The risk for cardiac arrhythmias was similar in walkers and runners who expended comparable METhr/d during structured exercise. We found no significant risk increase for self-reported cardiac arrhythmias associated with running distance, exercise intensity, or marathon participation. Rhythm abnormalities were based on self-report, precluding definitive categorization of the nature of the rhythm disturbance. However, even if the runners' arrhythmias include sinus bradycardia due to running itself, there was no increase in arrhythmias with greater running distance.
C1 [Williams, Paul T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Franklin, Barry A.] William Beaumont Hosp, Beaumont Hlth Ctr, Prevent Cardiol & Cardiac Rehabil, Royal Oak, MI 48072 USA.
RP Williams, PT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA.
EM ptwilliams@lbl.gov
FU National Heart, Lung and Blood Institute [HL094717]
FX This work was supported by grant HL094717 from the National Heart, Lung
and Blood Institute. The funders had no role in study design, data
collection and analysis, decision to publish, or preparation of the
manuscript.
NR 39
TC 12
Z9 12
U1 0
U2 7
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JUN 7
PY 2013
VL 8
IS 6
AR e65302
DI 10.1371/journal.pone.0065302
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 173QU
UT WOS:000321094800036
PM 23762337
ER
PT J
AU Joo, J
Plimpton, SJ
Faulon, JL
AF Joo, Jaewook
Plimpton, Steven J.
Faulon, Jean-Loup
TI Statistical ensemble analysis for simulating extrinsic noise-driven
response in NF-kappa B signaling networks
SO BMC SYSTEMS BIOLOGY
LA English
DT Article
DE Statistical ensemble; Extrinsic noise; Cell to cell variability;
NF-kappa B signal transduction network
ID STOCHASTIC GENE-EXPRESSION; TO-CELL VARIABILITY; SINGLE-CELL; TEMPORAL
CONTROL; OSCILLATIONS; ACTIVATION; DYNAMICS; LIPOPOLYSACCHARIDE;
SPECIFICITY; DETERMINES
AB Background: Gene expression profiles and protein dynamics in single cells have a large cell-to-cell variability due to intracellular noise. Intracellular fluctuations originate from two sources: intrinsic noise due to the probabilistic nature of biochemical reactions and extrinsic noise due to randomized interactions of the cell with other cellular systems or its environment. Presently, there is no systematic parameterization and modeling scheme to simulate cellular response at the single cell level in the presence of extrinsic noise.
Results: In this paper, we propose a novel statistical ensemble method to simulate the distribution of heterogeneous cellular responses in single cells. We capture the effects of extrinsic noise by randomizing values of the model parameters. In this context, a statistical ensemble is a large number of system replicates, each with randomly sampled model parameters from biologically feasible intervals. We apply this statistical ensemble approach to the well-studied NF-kappa B signaling system. We predict several characteristic dynamic features of NF-kappa B response distributions; one of them is the dosage-dependent distribution of the first translocation time of NF-kappa B.
Conclusion: The distributions of heterogeneous cellular responses that our statistical ensemble formulation generates reveal the effect of different cellular conditions, e.g., effects due to wild type versus mutant cells or between different dosages of external stimulants. Distributions generated in the presence of extrinsic noise yield valuable insight into underlying regulatory mechanisms, which are sometimes otherwise hidden.
C1 [Joo, Jaewook] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Plimpton, Steven J.] Sandia Natl Labs, Scalable Algorithms Dept, Albuquerque, NM 87185 USA.
[Faulon, Jean-Loup] Evry Univ, Dept Biol, Evry, France.
RP Joo, J (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
EM jjoo1@utk.edu
FU Laboratory Directed Research and Development program at Sandia National
Laboratories; United States Department of Energy [DEAC04-94AL85000];
National Science Foundation [NSF PHY11-25915]
FX This work was supported by the Laboratory Directed Research and
Development program at Sandia National Laboratories, a multiprogram
laboratory operated by Sandia Corporation, a Lockheed Martin Company,
for the United States Department of Energy, under Contract No.
DEAC04-94AL85000. This research was supported in part by the National
Science Foundation under Grant No. NSF PHY11-25915.
NR 42
TC 1
Z9 1
U1 0
U2 9
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1752-0509
J9 BMC SYST BIOL
JI BMC Syst. Biol.
PD JUN 7
PY 2013
VL 7
AR 45
DI 10.1186/1752-0509-7-45
PG 18
WC Mathematical & Computational Biology
SC Mathematical & Computational Biology
GA 173GS
UT WOS:000321067100001
PM 23742268
ER
PT J
AU Frisz, JF
Klitzing, HA
Lou, KY
Hutcheon, ID
Weber, PK
Zimmerberg, J
Kraft, ML
AF Frisz, Jessica F.
Klitzing, Haley A.
Lou, Kaiyan
Hutcheon, Ian D.
Weber, Peter K.
Zimmerberg, Joshua
Kraft, Mary L.
TI Sphingolipid Domains in the Plasma Membranes of Fibroblasts Are Not
Enriched with Cholesterol
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID ION MASS-SPECTROMETRY; LIPID-MEMBRANES; INFLUENZA-VIRUS; PROTEINS;
CELLS; RAFTS; ACTIN; HEMAGGLUTININ; ORGANIZATION; ADHESION
AB The plasma membranes of mammalian cells are widely expected to contain domains that are enriched with cholesterol and sphingolipids. In this work, we have used high-resolution secondary ion mass spectrometry to directly map the distributions of isotope-labeled cholesterol and sphingolipids in the plasma membranes of intact fibroblast cells. Although acute cholesterol depletion reduced sphingolipid domain abundance, cholesterol was evenly distributed throughout the plasma membrane and was not enriched within the sphingolipid domains. Thus, we rule out favorable cholesterol-sphingolipid interactions as dictating plasma membrane organization in fibroblast cells. Because the sphingolipid domains are disrupted by drugs that depolymerize the cells actin cytoskeleton, cholesterol must instead affect the sphingolipid organization via an indirect mechanism that involves the cytoskeleton.
C1 [Frisz, Jessica F.; Klitzing, Haley A.; Kraft, Mary L.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
[Lou, Kaiyan; Kraft, Mary L.] Univ Illinois, Dept Chem & Biomol Engn, Urbana, IL 61801 USA.
[Hutcheon, Ian D.; Weber, Peter K.] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94551 USA.
[Zimmerberg, Joshua] Eunice Kennedy Shriver NICHD, Program Phys Biol, NIH, Bethesda, MD 20892 USA.
RP Kraft, ML (reprint author), Univ Illinois, Dept Chem & Biomol Engn, 600 S Mathews Ave, Urbana, IL 61801 USA.
EM mlkraft@illinois.edu
FU Career Award at the Scientific Interface from the Burroughs Wellcome
Fund; NICHD; National Institutes of Health; National Institutes of
Health Training Program in the Chemistry-Biology Interface [T32
GM070421]; National Science Foundation [CHE-1058809]; Laboratory
Directed Research and Development funding at the Lawrence Livermore
National Laboratory; U.S. Department of Energy [DE-AC52-07NA27344]
FX This work was supported in part by a Career Award at the Scientific
Interface from the Burroughs Wellcome Fund (to M. L. K.), the Intramural
Program of the NICHD, National Institutes of Health, National Institutes
of Health Training Program in the Chemistry-Biology Interface T32
GM070421 (to J. F. F.), National Science Foundation Grant CHE-1058809,
and Laboratory Directed Research and Development funding at the Lawrence
Livermore National Laboratory. Work at the Lawrence Livermore National
Laboratory was performed under the auspices of U.S. Department of Energy
Contract DE-AC52-07NA27344.
NR 38
TC 51
Z9 51
U1 0
U2 26
PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
SN 0021-9258
J9 J BIOL CHEM
JI J. Biol. Chem.
PD JUN 7
PY 2013
VL 288
IS 23
BP 16855
EP 16861
DI 10.1074/jbc.M113.473207
PG 7
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 163ZU
UT WOS:000320378900058
PM 23609440
ER
PT J
AU Mao, BH
Chang, R
Lee, S
Axnanda, S
Crumlin, E
Grass, ME
Wang, SD
Vajda, S
Liu, Z
AF Mao, Bao-Hua
Chang, Rui
Lee, Sungsik
Axnanda, Stephanus
Crumlin, Ethan
Grass, Michael E.
Wang, Sui-Dong
Vajda, Stefan
Liu, Zhi
TI Oxidation and reduction of size-selected subnanometer Pd clusters on
Al2O3 surface
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID SUPPORTED GOLD CLUSTERS; THIN ALUMINA FILM; IN-SITU GISAXS; CO
OXIDATION; MODEL CATALYSTS; PHOTOELECTRON-SPECTROSCOPY; PD(111)
OXIDATION; SINTER-RESISTANT; PRESSURE XPS; OXIDE-FILMS
AB In this paper, we investigate uniformly dispersed size-selected Pd-n clusters (n = 4, 10, and 17) on alumina supports. We study the changes of clustered Pd atoms under oxidizing and reducing (O-2 and CO, respectively) conditions in situ using ambient pressure XPS. The behavior of Pd in the clusters is quite different from that of Pd foil under the same conditions. For all Pd clusters, we observe only one Pd peak. The binding energy of this Pd 3d peak is similar to 1-1.4 eV higher than that of metallic Pd species and changes slightly in CO and O-2 environments. On the Pd foil however many different Pd species co-exist on the surface and change their oxidation states under different conditions. We find that the Pd atoms in direct contact with Al2O3 differ in oxidation state from the surface Pd atoms in a foil under reaction conditions. Compared to previous literature, we find that Pd 3d peak positions are greatly influenced by the different types of Al2O3 supports due to the combination of both initial and final state effects. (C) 2013 AIP Publishing LLC.
C1 [Mao, Bao-Hua; Wang, Sui-Dong] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China.
[Mao, Bao-Hua; Wang, Sui-Dong] Soochow Univ, Soochow Univ Western Univ Joint Ctr Synchrotron R, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China.
[Mao, Bao-Hua; Chang, Rui; Axnanda, Stephanus; Crumlin, Ethan; Grass, Michael E.; Liu, Zhi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Chang, Rui] Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China.
[Lee, Sungsik] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Vajda, Stefan] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Vajda, Stefan] Argonne Natl Lab, Nanosci & Technol Div, Argonne, IL 60439 USA.
[Vajda, Stefan] Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06520 USA.
RP Wang, SD (reprint author), Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China.
EM wangsd@suda.edu.cn; zliu2@lbl.gov
RI Axnanda, Stephanus/G-9236-2011; Wang, Sui-Dong/E-6063-2013; Liu,
Zhi/B-3642-2009
OI Liu, Zhi/0000-0002-8973-6561
FU (U.S.) Department of Energy (DOE), BES-Materials Sciences
[DE-AC-02-06CH11357]; Office of Energy Research, Office of Basic Energy
Sciences of the (U.S.) Department of Energy [DE-AC02-05CH11231]; ALS
Postdoctoral Fellowship Program; National Basic Research Development
Program of China (973 Program) [2010CB934503]
FX The authors thank Dr. J. W. Elam and Dr. J. A. Libera for providing the
alumina-coated silicon chips. The (U.S.) Department of Energy (DOE),
BES-Materials Sciences, under Contract No. DE-AC-02-06CH11357 supported
the work performed at Argonne National Laboratory with the UChicago
Argonne, LLC the operator of Argonne National Laboratory. The Advanced
Light Source is supported by the Director, Office of Energy Research,
Office of Basic Energy Sciences of the (U.S.) Department of Energy under
Contract Nos. DE-AC02-05CH11231. S.A. and E.J.C. acknowledge the support
of the ALS Postdoctoral Fellowship Program. Research at Soochow
University is supported by the National Basic Research Development
Program of China (973 Program, No. 2010CB934503). The authors thank Dr.
Derek Butcher for proof reading the paper. The authors also thank two
anonymous reviewers for their thoughtful comments and suggestions.
NR 70
TC 19
Z9 19
U1 7
U2 100
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JUN 7
PY 2013
VL 138
IS 21
AR 214304
DI 10.1063/1.4807488
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 160SE
UT WOS:000320138900019
PM 23758368
ER
PT J
AU Markutsya, S
Devarajan, A
Baluyut, JY
Windus, TL
Gordon, MS
Lamm, MH
AF Markutsya, Sergiy
Devarajan, Ajitha
Baluyut, John Y.
Windus, Theresa L.
Gordon, Mark S.
Lamm, Monica H.
TI Evaluation of coarse-grained mapping schemes for polysaccharide chains
in cellulose
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; NEUTRON FIBER DIFFRACTION;
HYDROGEN-BONDING SYSTEM; SYNCHROTRON X-RAY; BIOMOLECULAR SYSTEMS;
CRYSTAL-STRUCTURE; HIGHLY EFFICIENT; MODEL; PRETREATMENT; ALGORITHMS
AB A fundamental understanding of the intermolecular forces that bind polysaccharide chains together in cellulose is crucial for designing efficient methods to overcome the recalcitrance of lignocellulosic biomass to hydrolysis. Because the characteristic time and length scales for the degradation of cellulose by enzymatic hydrolysis or chemical pretreatment span orders of magnitude, it is important to closely integrate the molecular models used at each scale so that, ultimately, one may switch seamlessly between quantum, atomistic, and coarse-grained descriptions of the system. As a step towards that goal, four multiscale coarse-grained models for polysaccharide chains in a cellulose-I alpha microfiber are considered. Using the force matching method, effective coarse-grained forces are derived from all-atom trajectories. Performance of the coarse-grained models is evaluated by comparing the intrachain radial distribution functions with those obtained using the all-atom reference data. The all-atom simulation reveals a double peak in the radial distribution function for sites within each glucose residue that arises from the distinct conformations sampled by the primary alcohol group in the glucose residues. The three-site and four-site coarse-grained models have sufficient degrees of freedom to predict this double peak while the one-site and two-site models do not. This is the first time that coarse-grained models have been shown to reproduce such subtle, yet important, molecular features in a polysaccharide chain. The relative orientations between glucose residues along the polysaccharide chain are evaluated and it is found that the four-site coarse-grained model is best at reproducing the glucose-glucose conformations observed in the all-atom simulation. The success of the four-site coarse-grained model underscores the importance of decoupling the pyranose ring from the oxygen atom in the glycosidic bond when developing all-atom to coarse-grained mapping schemes for polysaccharides. (C) 2013 AIP Publishing LLC.
C1 [Markutsya, Sergiy; Devarajan, Ajitha; Baluyut, John Y.; Windus, Theresa L.; Gordon, Mark S.; Lamm, Monica H.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Markutsya, Sergiy; Lamm, Monica H.] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA.
[Devarajan, Ajitha; Baluyut, John Y.; Windus, Theresa L.; Gordon, Mark S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
RP Lamm, MH (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM mhlamm@iastate.edu
FU U.S. Department of Energy's (USDOE) Scientific Discovery through
Advanced Computing (SciDAC) program through USDOE's Office of Advanced
Scientific Computing Research (ASCR) and Biological and Environmental
Research (BER) [FWP AL-08-330-039]; Iowa State University for the USDOE
[DE-AC02-07CH11358]
FX This research is sponsored by U.S. Department of Energy's (USDOE)
Scientific Discovery through Advanced Computing (SciDAC) program through
USDOE's Office of Advanced Scientific Computing Research (ASCR) and
Biological and Environmental Research (BER), and performed at the Ames
Laboratory, FWP AL-08-330-039. Ames Laboratory is managed by Iowa State
University for the USDOE under Contract No. DE-AC02-07CH11358. The
authors thank Professor G. A. Voth for providing the multiscale
coarse-graining software developed by his research group and Professor
J. C. Smith for providing the parameters for the CHARMM36 potential used
in the all-atom simulations.
NR 42
TC 7
Z9 7
U1 3
U2 56
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD JUN 7
PY 2013
VL 138
IS 21
AR 214108
DI 10.1063/1.4808025
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 160SE
UT WOS:000320138900010
PM 23758359
ER
PT J
AU Contescu, CI
Zhang, HX
Olsen, RJ
Mamontov, E
Morris, JR
Gallego, NC
AF Contescu, Cristian I.
Zhang, Hongxin
Olsen, Raina J.
Mamontov, Eugene
Morris, James R.
Gallego, Nidia C.
TI Isotope Effect on Adsorbed Quantum Phases: Diffusion of H-2 and D-2 in
Nanoporous Carbon
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HYDROGEN ISOTOPES; MICROPOROUS MATERIALS; ACTIVATED CARBON; 77 K;
ADSORPTION; TEMPERATURES; SEPARATION; DEUTERIUM; ENERGY
AB Quasielastic neutron scattering of H-2 and D-2 in the same nanoporous carbon at 10-40 K demonstrates extreme quantum sieving, with D-2 diffusing up to 76 times faster. D-2 also shows liquidlike diffusion while H-2 exhibits Chudley-Elliott jump diffusion, evidence of their different relationships with the local lattice of adsorption sites due to quantum effects on intermolecular interactions. The onset of diffusion occurs at 22-25 K for H-2 and 10-13 K for D-2. At these temperatures, H-2 and D-2 have identical thermal de Broglie wavelengths that correlate with the dominant pore size.
C1 [Contescu, Cristian I.; Zhang, Hongxin; Olsen, Raina J.; Morris, James R.; Gallego, Nidia C.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Mamontov, Eugene] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
RP Contescu, CI (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM contescuci@ornl.gov
RI Mamontov, Eugene/Q-1003-2015; Morris, J/I-4452-2012;
OI Mamontov, Eugene/0000-0002-5684-2675; Morris, J/0000-0002-8464-9047;
Contescu, Cristian/0000-0002-7450-3722; Gallego,
Nidia/0000-0002-8252-0194
FU Materials Science and Engineering Division, Office of Basic Energy
Sciences, U.S. Department of Energy; Scientific User Facility Division,
Office of Basic Energy Sciences, U.S. Department of Energy; Oak Ridge
Institute for Science and Education; Oak Ridge Associated University
FX This work was supported by the Materials Science and Engineering
Division, Office of Basic Energy Sciences, U.S. Department of Energy.
QENS experiments were conducted at Oak Ridge National Laboratory's
Spallation Neutrons Source supported by the Scientific User Facility
Division, Office of Basic Energy Sciences, U.S. Department of Energy. H.
Z. acknowledges support from the Oak Ridge Institute for Science and
Education and Oak Ridge Associated University. R. J. O. performed
quantum calculations with support from the U.S. Department of Energy
Office of Energy Efficiency and Renewable Energy (DOE-EERE) under the
EERE Fuel Cell Technologies Program.
NR 41
TC 10
Z9 10
U1 4
U2 40
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 7
PY 2013
VL 110
IS 23
AR UNSP 236102
DI 10.1103/PhysRevLett.110.236102
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 161BC
UT WOS:000320164400013
PM 25167516
ER
PT J
AU Setoodehnia, K
Chen, AA
Kahl, D
Komatsubara, T
Jose, J
Longland, R
Abe, Y
Binh, DN
Chen, J
Cherubini, S
Clark, JA
Deibel, CM
Fukuoka, S
Hashimoto, T
Hayakawa, T
Hendriks, J
Ishibashi, Y
Ito, Y
Kubono, S
Lennard, WN
Moriguchi, T
Nagae, D
Nishikiori, R
Niwa, T
Ozawa, A
Parker, PD
Seiler, D
Shizuma, T
Suzuki, H
Wrede, C
Yamaguchi, H
Yuasa, T
AF Setoodehnia, K.
Chen, A. A.
Kahl, D.
Komatsubara, T.
Jose, J.
Longland, R.
Abe, Y.
Binh, D. N.
Chen, J.
Cherubini, S.
Clark, J. A.
Deibel, C. M.
Fukuoka, S.
Hashimoto, T.
Hayakawa, T.
Hendriks, J.
Ishibashi, Y.
Ito, Y.
Kubono, S.
Lennard, W. N.
Moriguchi, T.
Nagae, D.
Nishikiori, R.
Niwa, T.
Ozawa, A.
Parker, P. D.
Seiler, D.
Shizuma, T.
Suzuki, H.
Wrede, C.
Yamaguchi, H.
Yuasa, T.
TI Nuclear structure of S-30 and its implications for nucleosynthesis in
classical novae
SO PHYSICAL REVIEW C
LA English
DT Article
ID THERMONUCLEAR REACTION-RATES; PRESOLAR GRAINS; DECAY; RATIOS; STATES;
DISTRIBUTIONS; ELEMENTS; PHYSICS; SHELL
AB Background: The uncertainty in the P-29(p, gamma)S-30 reaction rate over 0.1 <= T <= 1.3 GK was previously determined to span approximately four orders of magnitude due to the uncertain location of two previously unobserved 3(+) and 2(+) resonances in the E-x = 4.7-4.8 MeV region in S-30. Therefore, the abundances of silicon isotopes synthesized in novae, which are relevant for the identification of presolar grains of putative nova origin, were uncertain by a factor of 3.
Purpose: (a) To investigate the level structure of S-30 above the proton threshold [4394.9(7) keV] via charged-particle spectroscopy using the S-32(p, t) S-30 reaction and in-beam gamma-ray spectroscopy using the Si-28(He-3, n gamma)S-30 reaction to calculate the P-29(p, gamma)S-30 reaction rate. (b) To explore the impact of this rate on the abundances of silicon isotopes synthesized in novae.
Methods: Differential cross sections of the S-32(p, t)S-30 reaction were measured at 34.5 MeV. Distorted-wave Born approximation calculations were performed to constrain the spin-parity assignments of the observed levels, including the two astrophysically-important levels. An energy-level scheme was deduced from gamma-gamma coincidence measurements using the Si-28(He-3, n gamma)S-30 reaction. Spin-parity assignments based on measurements of gamma-ray angular distributions and gamma-gamma directional correlation from oriented nuclei were made for most of the observed levels of S-30.
Results: The resonance energies corresponding to the states with 4.5 MeV less than or similar to E-x less than or similar to 6 MeV, including the two astrophysically important states predicted previously, are measured with significantly better precision than before. The spin-parity assignments of both astrophysically important resonances are confirmed. The uncertainty in the rate of the P-29(p, gamma)S-30 reaction is substantially reduced over the temperature range of interest. Finally, the influence of this rate on the abundance ratios of silicon isotopes synthesized in novae are obtained via 1D hydrodynamic nova simulations.
Conclusions: The uncertainty in the P-29(p, gamma)S-30 reaction rate is reduced to the point that it no longer affects the silicon isotopic abundance ratios significantly, and, thus, the results of our nova hydrodynamic simulation for the nucleosynthesis in the Si-Ca mass region are more reliable than before.
C1 [Setoodehnia, K.; Chen, A. A.; Chen, J.] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
[Kahl, D.; Binh, D. N.; Cherubini, S.; Hashimoto, T.; Kubono, S.; Yamaguchi, H.] Univ Tokyo, CNS, Wako Branch RIKEN, Wako, Saitama 3510198, Japan.
[Komatsubara, T.; Abe, Y.; Fukuoka, S.; Ishibashi, Y.; Ito, Y.; Moriguchi, T.; Nagae, D.; Nishikiori, R.; Niwa, T.; Ozawa, A.; Suzuki, H.; Yuasa, T.] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058577, Japan.
[Jose, J.; Longland, R.] Univ Politecn Cataluna, Dept Fis & Engn Nucl, Barcelona 08036, Spain.
[Jose, J.; Longland, R.] Inst Estudis Espacials Catalunya, Barcelona 08034, Spain.
[Cherubini, S.] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy.
[Cherubini, S.] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy.
[Clark, J. A.; Deibel, C. M.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Deibel, C. M.] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA.
[Hayakawa, T.; Shizuma, T.] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan.
[Hendriks, J.; Lennard, W. N.] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 5B7, Canada.
[Parker, P. D.] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA.
[Seiler, D.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany.
[Wrede, C.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
RP Setoodehnia, K (reprint author), McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
EM kiana.setoodeh@gmail.com
RI Hayakawa, Takehito/K-8478-2015; Cherubini, Silvio/F-3503-2017;
OI Chen, Jun/0000-0003-0447-7466; Cherubini, Silvio/0000-0002-1974-0389
FU Natural Sciences and Engineering Research Council of Canada; US
Department of Energy [DE-FG02-91ER40609, DE-AC02-06CH11357,
DE-FG02-97ER41020]; KAKENHI of Japan [21540295]; JSPS KAKENHI of Japan;
JSPS Bilateral Joint Project of Japan; Japan Society for the Promotion
of Science Core-to-Core Program on International Research Network for
Exotic Femto Systems [18002]; DFG cluster of excellence "Origin and
Structure of the Universe"; ESF EUROCORES Program EuroGENESIS through
MICINN [EUI2009-04167]; [AYA2010-15685]
FX K.S. thanks C. Iliadis, D. W. Bardayan, B. Singh, and A. M. Moro for
their assistance with the data analysis, as well as for providing some
crucial software programs without which the data analysis could not be
completed. Also, we thank the staff of WNSL and the UTTAC for their
contributions. This work was supported by the Natural Sciences and
Engineering Research Council of Canada; the US Department of Energy
under Grants No. DE-FG02-91ER40609, No. DE-AC02-06CH11357, and No.
DE-FG02-97ER41020; a Grant-in-Aid for Science Research KAKENHI 21540295
of Japan; the JSPS KAKENHI and JSPS Bilateral Joint Project of Japan;
Japan Society for the Promotion of Science Core-to-Core Program on
International Research Network for Exotic Femto Systems under Grant No.
18002; the DFG cluster of excellence "Origin and Structure of the
Universe"; ESF EUROCORES Program EuroGENESIS through MICINN Grant No.
EUI2009-04167; and Spanish Grant No. AYA2010-15685.
NR 67
TC 5
Z9 5
U1 0
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD JUN 7
PY 2013
VL 87
IS 6
AR 065801
DI 10.1103/PhysRevC.87.065801
PG 22
WC Physics, Nuclear
SC Physics
GA 160MM
UT WOS:000320123700001
ER
PT J
AU Celina, MC
Dayile, AR
Quintana, A
AF Celina, Mathew C.
Dayile, Angela R.
Quintana, Adam
TI A perspective on the inherent oxidation sensitivity of epoxy materials
SO POLYMER
LA English
DT Article
DE Epoxy thermo-set properties; Epoxy oxidation behavior; Polymer materials
performance
ID NON-ARRHENIUS BEHAVIOR; DIFFUSION-LIMITED OXIDATION; ORGANIC MATRIX
COMPOSITES; THERMAL-OXIDATION; CHEMICAL-STRUCTURE; PMR-15 RESIN; CURED
EPOXY; AGING DATA; DEGRADATION; THERMOOXIDATION
AB There has long been awareness that epoxy materials are not inert to high temperature-induced degradation and therefore have performance limits. As organic polymers, epoxy thermo-sets and composite materials will degrade under thermo-oxidative conditions with loss of useful properties in adhesion or mechanical toughness, and this degradation may initiate at the surface. While high temperature empirical data on the depth of degradation profiles have been made available for some materials, precise data on the intrinsic oxidation sensitivity of epoxy materials do not yet exist. Two different epoxy material types were chosen: a DGEBA based resin (Epon 828) was cured with either a cycloaliphatic amine (Ancamine 2049) or a polyether amine (Jeffamine D230) for comparison. Due to generally low O-2 permeability in epoxies any oxidation will be limited to the surface; hence experiments were conducted for thin films under non-diffusion limited conditions to obtain unbiased rate data. We have succeeded to show for the first time that oxidation behavior of epoxies at moderate temperatures can be approached experimentally. This study offers an overview on the intrinsic oxidation sensitivity of two cured epoxy thermo-set materials between 25 and 140 degrees C. Excellent Arrhenius behavior was observed with activation energies in the 70-80 kJ/mol range. These epoxy materials are surprisingly reactive and show higher oxidation rates than anticipated, even at moderate temperatures. In any applications where epoxy materials are used at elevated temperatures under non-inert conditions, oxidation will result in material chemistry changes and this will affect their performance with regard to adhesion or properties in composites. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Celina, Mathew C.; Dayile, Angela R.; Quintana, Adam] Sandia Natl Labs, Mat Characterizat & Performance Dept 1819, Albuquerque, NM 87185 USA.
RP Celina, MC (reprint author), Sandia Natl Labs, POB 5800,MS 1411,Dept 1819, Albuquerque, NM 87185 USA.
EM mccelin@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Some experimental support by Manny Rojo and Nicholas Giron is gratefully
acknowledged. Sandia National Laboratories is a multiprogram laboratory
managed and operated by Sandia Corporation, a wholly owned subsidiary of
Lockheed Martin Corporation, for the U.S. Department of Energy's
National Nuclear Security Administration under contract
DE-AC04-94AL85000.
NR 50
TC 16
Z9 16
U1 2
U2 44
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0032-3861
J9 POLYMER
JI Polymer
PD JUN 7
PY 2013
VL 54
IS 13
BP 3290
EP 3296
DI 10.1016/j.polymer.2013.04.042
PG 7
WC Polymer Science
SC Polymer Science
GA 162VI
UT WOS:000320293700020
ER
PT J
AU Bali, G
Foston, MB
O'Neill, HM
Evans, BR
He, JH
Ragauskas, AJ
AF Bali, Garima
Foston, Marcus B.
O'Neill, Hugh M.
Evans, Barbara R.
He, Junhong
Ragauskas, Arthur J.
TI The effect of deuteration on the structure of bacterial cellulose
SO CARBOHYDRATE RESEARCH
LA English
DT Article
DE Deuterated bacterial cellulose; Acetobacter xylinus; FTIR; Crystallinity
ID NEUTRON FIBER DIFFRACTION; SYNCHROTRON X-RAY; DIFFERENT POLYMERIC
ADDITIVES; IN-SITU CRYSTALLIZATION; HYDROGEN-BONDING SYSTEM;
CRYSTAL-STRUCTURE; MICROBIAL CELLULOSE; VIVO DEUTERATION; AGITATED
CULTURE; BIOSYNTHESIS
AB In vivo generated deuterated bacterial cellulose, cultivated from 100% deuterated glycerol in D2O medium, was analyzed for deuterium incorporation by ionic liquid dissolution and H-2 and H-1 nuclear magnetic resonance (NMR). A solution NMR method of the dissolved cellulose was used to determine that this bacterial cellulose had 85% deuterium incorporation. Acetylation and H-1 and H-2 NMR of deuterated bacterial cellulose indicated near equal deuteration at all sites of the glucopyranosyl ring except C-6 which was partly deuterated. Despite the high level of deuterium incorporation no significant differences in the molecular and morphological properties were observed for the deuterated and protio bacterial cellulose samples. The highly deuterated bacterial cellulose presented here can be used as a model substrate for studying cellulose biopolymer properties via future small angle neutron scattering (SANS) studies. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Bali, Garima; Ragauskas, Arthur J.] Georgia Inst Technol, Sch Chem & Biochem, Inst Paper Sci & Technol, Atlanta, GA 30332 USA.
[Foston, Marcus B.] Washington Univ, Dept Energy Environm & Chem Engn, St Louis, MO USA.
[O'Neill, Hugh M.; He, Junhong] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA.
[Evans, Barbara R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Ragauskas, AJ (reprint author), Georgia Inst Technol, Sch Chem & Biochem, Inst Paper Sci & Technol, 500 10th St NW, Atlanta, GA 30332 USA.
EM arthur.ragauskas@chemistry.gatech.edu
OI O'Neill, Hugh/0000-0003-2966-5527; Ragauskas, Arthur/0000-0002-3536-554X
FU Center for Structural Molecular Biology; U.S. DOE, Office of Science,
Office of Biological and Environmental Research [ERKP291]
FX The support of the Center for Structural Molecular Biology funded by the
U.S. DOE, Office of Science, Office of Biological and Environmental
Research Project ERKP291 and the Scientific User Facilities Division,
Basic Energy Sciences, U. S. DOE, are acknowledged for bio-deuteration
studies.
NR 51
TC 16
Z9 16
U1 5
U2 55
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0008-6215
J9 CARBOHYD RES
JI Carbohydr. Res.
PD JUN 7
PY 2013
VL 374
BP 82
EP 88
DI 10.1016/j.carres.2013.04.009
PG 7
WC Biochemistry & Molecular Biology; Chemistry, Applied; Chemistry, Organic
SC Biochemistry & Molecular Biology; Chemistry
GA 149PD
UT WOS:000319332100012
PM 23651632
ER
PT J
AU Smith, MM
Wolery, TJ
Carroll, SA
AF Smith, Megan M.
Wolery, Thomas J.
Carroll, Susan A.
TI Kinetics of chlorite dissolution at elevated temperatures and CO2
conditions
SO CHEMICAL GEOLOGY
LA English
DT Article
DE Chlorite; Kinetic dissolution; Geothermal geochemistry; Subsurface
carbon dioxide; Aqueous CO2
ID PH; RATES; 25-DEGREES-C; SEQUESTRATION; BIOTITE; ENERGY; FLUID; NMR
AB Chlorite ((Mg4.29Al1.4Fe0.10)(Al-1.Si-22(2.78))O-10(OH)(8)) dissolution kinetics were measured under far from equilibrium conditions using a mixed-flow reactor over temperatures of 100-275 degrees C at pH values of 3.0-5.7 in a background solution matrix of 0.05 m NaCl. Over this temperature range, magnesium was released congruently with respect to silica. The effect of variable pCO2 levels representative of engineered geothermal systems with CO2 as a heat-exchanging fluid (CO2-EGS) was explored by reacting chlorite with solutions containing a range of dissolved CO2 concentrations (0.1-0.5 M). The dissolution rate was insensitive to CO2(aq) concentration, with dissolved CO2 apparently affecting dissolution only through increased acidity. Over this range of far-from-equilibrium experimental conditions of elevated temperature, mildly acidic to moderately neutral pH, and CO2(aq) concentrations up to 0.5 M, Mg-rich chlorite dissolution can be described as a surface area-normalized rate equal to:
rate = k(acid) exp [(-E-acid/R).( 1/T - 1/298K)].a(H+1)(n)
where the apparent acid rate constant at 25 degrees C is k(a) =10(-9-91) mol m(-2) s(-1), the reaction order n with respect to H+(aq) is 0.49, and the activation energy for the acid mechanism is E = 25.1 kJ mol(-1) (this value is significantly lower than previous estimates). This chlorite dissolution rate equation can be used with reaction affinity terms and kinetic laws for other minerals to estimate the impact of geochemical alteration within CO2-enhanced geothermal system operations or other higher-temperature subsurface systems. Over a 100-275 degrees C temperature range, chlorite is 2-5 orders of magnitude less reactive than has been previously predicted. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Smith, Megan M.; Wolery, Thomas J.; Carroll, Susan A.] Lawrence Livermore Natl Lab, Atmospher Earth & Energy Div, Livermore, CA 94550 USA.
RP Smith, MM (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-231, Livermore, CA 94550 USA.
EM megan@llnl.gov; wolery@llnl.gov; carroll6@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344, LLNL-JRNL-580652]
FX We wish to thank LLNL personnel Nick Teslich and Zurong Dai (focused ion
beam preparation and TEM analysis), Victoria Genetti and Rachel Lindvall
(ICP-MS analyses), and Harris Mason (NMR analysis), as well as Todd
Schaef (PNNL, preliminary high pressure and temperature reaction and in
situ XRD). This manuscript benefitted from anonymous peer reviews and
the editorial assistance of Dr. Jeremy Fein. We acknowledge support of
this research through the American Renewal and Recovery Act and the U.S.
Department of Energy, Geothermal Technologies Program. This work was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344.
LLNL-JRNL-580652.
NR 33
TC 16
Z9 17
U1 6
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0009-2541
J9 CHEM GEOL
JI Chem. Geol.
PD JUN 6
PY 2013
VL 347
BP 1
EP 8
DI 10.1016/j.chemgeo.2013.02.017
PG 8
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 175LV
UT WOS:000321233100001
ER
PT J
AU Dhiman, SB
Goff, GS
Runde, W
LaVerne, JA
AF Dhiman, Surajdevprakash B.
Goff, George S.
Runde, Wolfgang
LaVerne, Jay A.
TI Hydrogen Production in Aromatic and Aliphatic Ionic Liquids
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID INDUCED REDOX REACTIONS; ROOM-TEMPERATURE; PULSE-RADIOLYSIS;
1-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE; ELECTROCHEMICAL-BEHAVIOR;
RADIATION-CHEMISTRY; GAMMA-IRRADIATION; REACTION-KINETICS; CONSTITUENT
IONS; METAL-IONS
AB The radiolytic production of molecular hydrogen in the ionic liquids N-trimethyl-N-butylammonium bis(trifluoromethanesulfonyl)imide [N-1114][Tf2N]) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([emim][Tf2N]) has been examined with gamma-rays, 2-10 MeV protons, and 5-20 MeV helium ions to determine the functional dependence of the yield on particle track structure. Molecular hydrogen is the dominant gaseous radiolysis product from these ionic liquids, and the yields with gamma-rays are 0.73 and 0.098 molecules per 100 eV of energy absorbed for [N-1114][Tf2N] and [emim][Tf2N], respectively. These low yields are consistent with the relative insensitivity of most aromatic compounds to radiation. However, the molecular hydrogen yields increase considerably on going from gamma-rays to protons to helium ions with [emim][Tf2N] while they remain essentially constant for [N-1114][Tf2N). FTIR and UV-vis spectroscopic studies show slight degradation of the ionic liquids with radiation.
C1 [Dhiman, Surajdevprakash B.; LaVerne, Jay A.] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA.
[Goff, George S.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Runde, Wolfgang] Los Alamos Natl Lab, Sci Programs Off, Los Alamos, NM 87545 USA.
[LaVerne, Jay A.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP LaVerne, JA (reprint author), Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA.
EM laverne.1@nd.edu
FU Laboratory Directed Research and Development Program at Los Alamos
National Laboratory; U.S. National Science Foundation; Division of
Chemical Sciences, Geosciences and Biosciences, Basic Energy Sciences,
Office of Science, United States Department of Energy
[DE-FC02-04ER15533]
FX The authors acknowledge the Laboratory Directed Research and Development
Program at Los Alamos National Laboratory for financial support during
this project. The authors thank Prof. Michael Wiescher for making
available the facilities of the Notre Dame Nuclear Structure Laboratory,
which is supported by the U.S. National Science Foundation. Ionic liquid
samples were supplied by the laboratory of Prof. J. F. Brennecke of the
University of Notre Dame. The work was performed using the facilities of
the Notre Dame Radiation Laboratory, which is supported by the Division
of Chemical Sciences, Geosciences and Biosciences, Basic Energy
Sciences, Office of Science, United States Department of Energy through
grant no. DE-FC02-04ER15533. This contribution is NDRL-4963 from the
Notre Dame Radiation Laboratory.
NR 56
TC 11
Z9 11
U1 1
U2 31
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD JUN 6
PY 2013
VL 117
IS 22
BP 6782
EP 6788
DI 10.1021/jp402502d
PG 7
WC Chemistry, Physical
SC Chemistry
GA 161TC
UT WOS:000320215200022
PM 23675989
ER
PT J
AU Son, JS
Lee, JS
Shevchenko, EV
Talapin, DV
AF Son, Jae Sung
Lee, Jong-Soo
Shevchenko, Elena V.
Talapin, Dmitri V.
TI Magnet-in-the-Semiconductor Nanomaterials: High Electron Mobility in
All-Inorganic Arrays of FePt/CdSe and FePt/CdS Core-Shell
Heterostructures
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID CDSE QUANTUM DOTS; NANOCRYSTAL SOLIDS; COLLOIDAL NANOCRYSTALS;
NANOSTRUCTURES; SUPERLATTICES; NANOPARTICLES; SIZE
AB We report a colloidal synthesis and electrical and magnetotransport properties of multifunctional "magnet-in-the-semiconductor" nanostructures composed of FePt core and CdSe or CdS shell. Thin films of all inorganic FePt/CdSe and FePt/CdS core-shell nanostructures capped with In2Se42- molecular chalcogenide (MCC) ligands exhibited n-type charge transport with high field-effect electron mobility of 34 and 0.02 cm(2)/V.s, respectively. These nanostructures also showed a negative magnetoresistance characteristic for spin-dependent tunneling. We discuss the mechanism of charge transport and gating in the arrays of metal/semiconductor core-shell nanostructures.
C1 [Son, Jae Sung; Lee, Jong-Soo; Talapin, Dmitri V.] Univ Chicago, Dept Chem, Chicago, IL 60637 USA.
[Lee, Jong-Soo] Daegu Gyeongbuk Inst Sci & Technol, Dept Energy Syst Engn, Taegu 711873, South Korea.
[Shevchenko, Elena V.; Talapin, Dmitri V.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Son, JS (reprint author), Univ Chicago, Dept Chem, 5735 S Ellis Ave, Chicago, IL 60637 USA.
RI Son, Jae Sung/C-2903-2014; Lee, Jong-Soo /F-7461-2010
OI Lee, Jong-Soo /0000-0002-3045-2206
FU University of Chicago NSF MRSEC Program [DMR-0213745]; Office of Basic
Energy Sciences User Facility [DE-AC02-06CH11357]
FX The work was supported by University of Chicago NSF MRSEC Program under
Award Number DMR-0213745. D.V.T. also thanks the Keck Foundation. This
work was performed, in part, at the Center for Nanoscale Materials, a
U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences User Facility under Contract No. DE-AC02-06CH11357
NR 30
TC 11
Z9 11
U1 5
U2 64
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JUN 6
PY 2013
VL 4
IS 11
BP 1918
EP 1923
DI 10.1021/jz400612d
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 161SW
UT WOS:000320214600027
PM 26283129
ER
PT J
AU Canton, SE
Zhang, XY
Zhang, JX
van Driel, TB
Kjaer, KS
Haldrup, K
Chabera, P
Harlang, T
Suarez-Alcantara, K
Liu, YZ
Perez, J
Bordage, A
Papai, M
Vanko, G
Jennings, G
Kurtz, CA
Rovezzi, M
Glatzel, P
Smolentsev, G
Uhlig, J
Dohn, AO
Christensen, M
Galler, A
Gawelda, W
Bressler, C
Lemke, HT
Moller, KB
Nielsen, MM
Lomoth, R
Warnmark, K
Sundstrom, V
AF Canton, Sophie E.
Zhang, Xiaoyi
Zhang, Jianxin
van Driel, Tim B.
Kjaer, Kasper S.
Haldrup, Kristoffer
Chabera, Pavel
Harlang, Tobias
Suarez-Alcantara, Karina
Liu, Yizhu
Perez, Jorge
Bordage, Amelie
Papai, Matyas
Vanko, Gyoergy
Jennings, Guy
Kurtz, Charles A.
Rovezzi, Mauro
Glatzel, Pieter
Smolentsev, Grigory
Uhlig, Jens
Dohn, Asmus O.
Christensen, Morten
Galler, Andreas
Gawelda, Wojciech
Bressler, Christian
Lemke, Henrik T.
Moller, Klaus B.
Nielsen, Martin M.
Lomoth, Reiner
Warnmark, Kenneth
Sundstrom, Villy
TI Toward Highlighting the Ultrafast Electron Transfer Dynamics at the
Optically Dark Sites of Photocatalysts
SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS
LA English
DT Article
ID X-RAY-SCATTERING; VISIBLE-LIGHT; HYDROGEN-PRODUCTION; SUPRAMOLECULAR
PHOTOCATALYST; MOLECULAR-HYDROGEN; AQUEOUS-SOLUTIONS; PHOTO-REDUCTION;
BRIDGING LIGAND; EXCITED-STATE; SOLAR-ENERGY
AB Building a detailed understanding of the structure function relationship is a crucial step in the optimization of molecular photocatalysts employed in water splitting schemes. The optically dark nature of their active sites usually prevents a complete mapping of the photoinduced dynamics. In this work, transient X-ray absorption spectroscopy highlights the electronic and geometric changes that affect such a center in a bimetallic model complex. Upon selective excitation of the ruthenium chromophore, the cobalt moiety is reduced through intramolecular electron transfer and undergoes a spin flip accompanied by an average bond elongation of 0.20 +/- 0.03 angstrom. The analysis is supported by simulations based on density functional theory structures (B3LYP*/TZVP) and FEFF 9.0 multiple scattering calculations. More generally, these results exemplify the large potential of the technique for tracking elusive intermediates that impart unique functionalities in photochemical devices.
C1 [Canton, Sophie E.; Suarez-Alcantara, Karina] Lund Univ, Dept Synchrotron Radiat Instrumentat, S-22100 Lund, Sweden.
[Zhang, Xiaoyi; Jennings, Guy; Kurtz, Charles A.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Zhang, Jianxin; Liu, Yizhu; Perez, Jorge; Warnmark, Kenneth] Lund Univ, Dept Chem, Ctr Anal & Synth, S-22100 Lund, Sweden.
[van Driel, Tim B.; Haldrup, Kristoffer; Christensen, Morten; Nielsen, Martin M.] Tech Univ Denmark, Dept Phys, Ctr Mol Movies, DK-2800 Lyngby, Denmark.
[Kjaer, Kasper S.; Moller, Klaus B.] Univ Copenhagen, Niels Bohr Inst, Ctr Mol Movies, DK-2100 Copenhagen, Denmark.
[Chabera, Pavel; Harlang, Tobias; Smolentsev, Grigory; Uhlig, Jens; Sundstrom, Villy] Lund Univ, Dept Chem Phys, S-22100 Lund, Sweden.
[Bordage, Amelie; Papai, Matyas; Vanko, Gyoergy] Hungarian Acad Sci, Wigner Res Ctr Phys, H-1525 Budapest, Hungary.
[Bordage, Amelie] CNRS, Inst Neel, F-38042 Grenoble 9, France.
[Bordage, Amelie] Univ Grenoble 1, F-38042 Grenoble 9, France.
[Rovezzi, Mauro; Glatzel, Pieter] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
[Dohn, Asmus O.] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark.
[Galler, Andreas; Gawelda, Wojciech; Bressler, Christian] European XFEL Facil, D-22761 Hamburg, Germany.
[Lemke, Henrik T.] SLAC Natl 1 Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA.
[Lomoth, Reiner] Uppsala Univ, Dept Chem, Angstrom Lab, S-75120 Uppsala, Sweden.
RP Canton, SE (reprint author), Lund Univ, Dept Synchrotron Radiat Instrumentat, POB 118, S-22100 Lund, Sweden.
EM Sophie.Canton@maxlab.lu.se; xyzhang@aps.anl.gov;
Villy.Sundstrom@chemphys.lu.se
RI Lemke, Henrik Till/N-7419-2016; Christensen, Morten/G-7870-2016; Vanko,
Gyorgy/B-8176-2012; Haldrup, Kristoffer/J-6875-2013; Moller, Klaus
Braagaard/B-7647-2014; Gawelda, Wojciech/B-7878-2014; Glatzel,
Pieter/E-9958-2010; Bressler, Christian/G-1864-2010; Uhlig,
Jens/A-5475-2010; Nielsen, Martin/A-5133-2009; Dohn, Asmus/K-2808-2015;
Harlang, Tobias/M-6360-2015; Chabera, Pavel/B-4202-2014; Canton,
Sophie/A-8432-2016
OI Lemke, Henrik Till/0000-0003-1577-8643; Papai, Matyas
Imre/0000-0002-4819-0611; Rovezzi, Mauro/0000-0003-2539-6198;
Christensen, Morten/0000-0002-6626-7301; Vanko,
Gyorgy/0000-0002-3095-6551; Haldrup, Kristoffer/0000-0002-0565-6397;
Moller, Klaus Braagaard/0000-0002-9797-7437; Gawelda,
Wojciech/0000-0001-7824-9197; Glatzel, Pieter/0000-0001-6532-8144;
Uhlig, Jens/0000-0002-0528-0422; Nielsen, Martin/0000-0002-8135-434X;
Harlang, Tobias/0000-0002-2056-6883; Chabera, Pavel/0000-0002-0531-5138;
FU Swedish Research Council (SEC, VS); Crafoord Foundation (SEC, KSA);
Science Faculty at Lund University (MAX IV); ESS initiative; European
Research Council [ERC-AdvG-VISCHEM-226136, ERC-StG-259709]; Centre for
Molecular Movies through the Danish National Research Foundation;
DANSCATT; Bolyai Janos Fellowship of the Hungarian Academy of Sciences;
U.S. DOE [DE-AC02-06CH11357]
FX This project was supported by the Swedish Research Council (SEC, VS),
the Crafoord Foundation (SEC, KSA), the Science Faculty at Lund
University (MAX IV and ESS initiative grant, KW, VS), the European
Research Council via contracts ERC-AdvG-VISCHEM-226136 to VS and
ERC-StG-259709 to GV, and the Centre for Molecular Movies through the
Danish National Research Foundation and DANSCATT. G.V. acknowledges
support from the Bolyai Janos Fellowship of the Hungarian Academy of
Sciences. X.Z., G.J., CAK. and the use of the Advanced Photon Source, an
Office of Science User Facility operated for DOE Office of Science by
Argonne National Laboratory, were supported by the U.S. DOE under
Contract No. DE-AC02-06CH11357. Contributions from Dr C. J. Wallentin to
early synthesis work are gratefully acknowledged. We thank Pr. L. X.
Chen and her group for providing the Nd:YLF regenerative amplifier
laser.
NR 45
TC 25
Z9 26
U1 9
U2 118
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7185
J9 J PHYS CHEM LETT
JI J. Phys. Chem. Lett.
PD JUN 6
PY 2013
VL 4
IS 11
BP 1972
EP 1976
DI 10.1021/jz401016h
PG 5
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Atomic, Molecular & Chemical
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 161SW
UT WOS:000320214600036
PM 26283136
ER
PT J
AU Iwig, JS
Kuriyan, J
AF Iwig, Jeffrey S.
Kuriyan, John
TI Fixing a Hole Where the Ras Gets In
SO CELL
LA English
DT Editorial Material
ID PDE-DELTA; GTPASES; ARL2-GTP
AB A clinically efficacious Ras inhibitor has eluded drug-discovery efforts for decades. In a paper in Nature, Zimmermann and et al. show that blocking a hole in PDE delta that normally engages the lipid tail of Ras disrupts downstream signaling, pointing to a potentially promising route to develop Ras inhibitors for cancer treatment.
C1 [Iwig, Jeffrey S.; Kuriyan, John] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Iwig, Jeffrey S.; Kuriyan, John] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Kuriyan, J (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM kuriyan@berkeley.edu
FU Howard Hughes Medical Institute
NR 9
TC 2
Z9 2
U1 0
U2 20
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0092-8674
J9 CELL
JI Cell
PD JUN 6
PY 2013
VL 153
IS 6
BP 1191
EP 1193
DI 10.1016/j.cell.2013.05.029
PG 4
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 158NQ
UT WOS:000319979200006
PM 23746837
ER
PT J
AU Spalding, KL
Bergmann, O
Alkass, K
Bernard, S
Salehpour, M
Huttner, HB
Bostrom, E
Westerlund, I
Vial, C
Buchholz, BA
Possnert, G
Mash, DC
Druid, H
Frisen, J
AF Spalding, Kirsty L.
Bergmann, Olaf
Alkass, Kanar
Bernard, Samuel
Salehpour, Mehran
Huttner, Hagen B.
Bostrom, Emil
Westerlund, Isabelle
Vial, Celine
Buchholz, Bruce A.
Possnert, Goran
Mash, Deborah C.
Druid, Henrik
Frisen, Jonas
TI Dynamics of Hippocampal Neurogenesis in Adult Humans
SO CELL
LA English
DT Article
ID ENHANCED SYNAPTIC PLASTICITY; DENTATE GYRUS; GRANULE CELLS; PATTERN
SEPARATION; OLFACTORY-BULB; MACAQUE MONKEY; NUCLEAR TESTS; HUMAN BRAIN;
NEURONS; MICE
AB Adult-born hippocampal neurons are important for cognitive plasticity in rodents. There is evidence for hippocampal neurogenesis in adult humans, although whether its extent is sufficient to have functional significance has been questioned. We have assessed the generation of hippocampal cells in humans by measuring the concentration of nuclearbomb-test-derived C-14 in genomic DNA, and we present an integrated model of the cell turnover dynamics. We found that a large subpopulation of hippocampal neurons constituting one-third of the neurons is subject to exchange. In adult humans, 700 new neurons are added in each hippocampus per day, corresponding to an annual turnover of 1.75% of the neurons within the renewing fraction, with a modest decline during aging. We conclude that neurons are generated throughout adulthood and that the rates are comparable in middle-aged humans and mice, suggesting that adult hippocampal neurogenesis may contribute to human brain function.
C1 [Spalding, Kirsty L.; Bergmann, Olaf; Alkass, Kanar; Huttner, Hagen B.; Bostrom, Emil; Westerlund, Isabelle; Frisen, Jonas] Karolinska Inst, Dept Cell & Mol Biol, S-17177 Stockholm, Sweden.
[Alkass, Kanar; Druid, Henrik] Karolinska Inst, Dept Oncology Pathol, S-17177 Stockholm, Sweden.
[Bernard, Samuel; Vial, Celine] Univ Lyon, CNRS UMR 5208, Inst Camille Jordan, F-69622 Villeurbanne, France.
[Salehpour, Mehran; Possnert, Goran] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden.
[Huttner, Hagen B.] Univ Erlangen Nurnberg, Dept Neurol, D-91054 Erlangen, Germany.
[Buchholz, Bruce A.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
[Mash, Deborah C.] Univ Miami, Miller Sch Med, Dept Neurol, Miami, FL 33136 USA.
RP Frisen, J (reprint author), Karolinska Inst, Dept Cell & Mol Biol, S-17177 Stockholm, Sweden.
EM jonas.frisen@ki.se
RI Bergmann, Olaf/A-5706-2009; Buchholz, Bruce/G-1356-2011; Bernard,
Samuel/A-5623-2009;
OI Bergmann, Olaf/0000-0003-1065-4107; Bernard, Samuel/0000-0002-8442-9968;
Druid, Henrik/0000-0002-9198-023X
FU Swedish Research Council; T. Stiftelsen, Hjarnfonden; Swedish Foundation
for Strategic Research; National Alliance for Research on Schizophrenia
and Depression; AFA Forsakringar; Knut and Alice Wallenberg Foundation;
National Institute on Drug Abuse [DA031429]; European Research Council;
National Institutes of Health (NIH); National Center for Research
Resources [5P41RR013461]; National Institute of General Medical Sciences
[8P41GM103483]; regional agreement on medical training and clinical
research between Stockholm County Council and the Karolinska Institute
[ALF 20080508]; Lawrence Livermore National Laboratory [AC5207NA27344];
German Research Foundation (DFG) [Hu 1961/1-1]
FX We thank M. Toro, S. Giatrellis, A. Busch, E. Kiss, and H. Ismail for
flow cytometry; K. Hakansson for AMS sample preparation; A. Racz for
tissue procurement; and F. Gage, G. Kempermann, and L. Slomianka for
valuable discussions. The staff at the Swedish National Board of
Forensic Medicine is acknowledged for cooperation in tissue donation.
This study was supported by the Swedish Research Council, T. Stiftelsen,
Hjarnfonden, the Swedish Foundation for Strategic Research, the National
Alliance for Research on Schizophrenia and Depression, AFA Forsakringar,
the Knut and Alice Wallenberg Foundation, the National Institute on Drug
Abuse (DA031429), the European Research Council, the National Institutes
of Health (NIH) and the National Center for Research Resources
(5P41RR013461), the NIH and the National Institute of General Medical
Sciences (8P41GM103483), and the regional agreement on medical training
and clinical research between Stockholm County Council and the
Karolinska Institute (ALF 20080508). This work was performed, in part,
with the support of the U.S.Department of Energy by the Lawrence
Livermore National Laboratory (under contract DE-AC5207NA27344). H.B.H.
was funded by a grant from the German Research Foundation (DFG: Hu
1961/1-1).
NR 44
TC 389
Z9 407
U1 20
U2 127
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0092-8674
J9 CELL
JI Cell
PD JUN 6
PY 2013
VL 153
IS 6
BP 1219
EP 1227
DI 10.1016/j.cell.2013.05.002
PG 9
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 158NQ
UT WOS:000319979200008
PM 23746839
ER
PT J
AU Yitamben, EN
Niebergall, L
Rankin, RB
Iski, EV
Rosenberg, RA
Greeley, JP
Stepanyuk, VS
Guisingert, NP
AF Yitamben, Esmeralda N.
Niebergall, L.
Rankin, Rees B.
Iski, Erin V.
Rosenberg, Richard A.
Greeley, Jeffrey P.
Stepanyuk, V. S.
Guisingert, Nathan P.
TI Tracking Amino Acids in Chiral Quantum Corrals
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SCANNING-TUNNELING-MICROSCOPY; SINGLE-MOLECULE; SURFACE; CU(111);
ALANINE; CONFINEMENT; ADSORPTION; ELECTRONS; GLYCINE
AB Molecular diffusion, motion, and conformation are critical to chemical and biological processes. Concurrently, understanding how chirality affects these processes has become a critical challenge for various applications in the pharmaceutical and food industries ranging from drug catalysis to novel sensing. Here, we present a unique way of transferring the chirality of simple amino acids, L- and D-alanine, to large-scale chiral networks on Cu(111). We further utilize the unique geometry of the chiral network as a scaffolding to isolate individual molecules within a 1.2 nm hexagonal pore. These hexagonal pores act as single molecule "race tracks" where excess alanine molecules trapped at the perimeter are observed to hop between six distinct locations around the perimeter. Scanning tunneling microscopy (STM) as well as density functional theory (DFT) calculations have been utilized to directly track, influence, and probe this molecular motion confined to self-assembled, chiral, hexagonal pores which also form quantum corrals.
C1 [Yitamben, Esmeralda N.; Rankin, Rees B.; Iski, Erin V.; Greeley, Jeffrey P.; Guisingert, Nathan P.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Niebergall, L.; Stepanyuk, V. S.] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany.
[Rosenberg, Richard A.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Guisingert, NP (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM nguisinger@anl.gov
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-06CH11357]
FX The authors thank B. L. Fisher for his technical assistance, S. B.
Darling for valuable discussions and alanine model, and P. C. Snijders
and J. A. Smerdon for their insight. E.N.Y. acknowledges the Center for
Nanoscale Materials (CNM) for the distinguished postdoctoral fellowship.
The work presented here was performed at the Center for Nanoscale
Materials at Argonne National Laboratory funded by the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences, under
Contract DE-AC02-06CH11357.
NR 38
TC 8
Z9 8
U1 10
U2 58
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD JUN 6
PY 2013
VL 117
IS 22
BP 11757
EP 11763
DI 10.1021/jp400074r
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 161SY
UT WOS:000320214800037
ER
PT J
AU Kjall, JA
Zaletel, MP
Mong, RSK
Bardarson, JH
Pollmann, F
AF Kjaell, Jonas A.
Zaletel, Michael P.
Mong, Roger S. K.
Bardarson, Jens H.
Pollmann, Frank
TI Phase diagram of the anisotropic spin-2 XXZ model: Infinite-system
density matrix renormalization group study
SO PHYSICAL REVIEW B
LA English
DT Article
ID QUANTUM SPIN; 2-DIMENSIONAL SYSTEMS; HALDANE-GAP; CHAINS; SYMMETRY;
STATES; ANTIFERROMAGNETS; ORDER; TRANSITIONS
AB We study the ground-state phase diagram of the quantum spin-2XXZ chain in the presence of on-site anisotropy using a matrix-product state based infinite-system density matrix renormalization group (iDMRG) algorithm. One of the interests in this system is in connecting the highly quantum-mechanical spin-1 phase diagram with the classical S = infinity phase diagram. Several of the recent advances within DMRG make it possible to perform a detailed analysis of the whole phase diagram. We consider different types of on-site anisotropies, which allows us to establish the validity of the following statements: (1) the spin-2 model can be tuned into a phase, which is equivalent to the "topologically nontrivial" spin-1 Haldane phase, and (2) the spin-2 Haldane phase at the isotropic Heisenberg point is adiabatically connected to the "trivial" large-D phase, with a continuous change of the Hamiltonian parameters. Furthermore, we study the spin-3 XXZ chain to help explain the development of the classical phase diagram. We present details on how to use the iDMRG method to map out the phase diagram and include an extensive discussion of the numerical methods.
C1 [Kjaell, Jonas A.; Zaletel, Michael P.; Mong, Roger S. K.; Bardarson, Jens H.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Kjaell, Jonas A.; Pollmann, Frank] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany.
[Mong, Roger S. K.] CALTECH, Dept Phys, Pasadena, CA 91125 USA.
[Bardarson, Jens H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Kjall, JA (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RI Pollmann, Frank/L-5378-2013
FU ARO Optical Lattice Emulator program; der Max-Planck-Gesellschaft; NSF
GRFP Grant [DGE 1106400]; NSF [DMR-0804413]; Sherman Fairchild
Foundation; DOE BES DMSE
FX We acknowledge Joel E. Moore, Luis Seabra, and Stephan Rachel for useful
conversations, and especially Masaki Oshikawa for suggesting the
inclusion of the D4 term in our study. This work is supported by the ARO
Optical Lattice Emulator program (J.K.), der Max-Planck-Gesellschaft
(J.K. and F.P.), NSF GRFP Grant DGE 1106400 (M.P.Z.), NSF DMR-0804413
and Sherman Fairchild Foundation (R.M.), and DOE BES DMSE (J.H.B.).
NR 69
TC 43
Z9 43
U1 2
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9950
EI 2469-9969
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 6
PY 2013
VL 87
IS 23
AR UNSP 235106
DI 10.1103/PhysRevB.87.235106
PG 16
WC Physics, Condensed Matter
SC Physics
GA 160GZ
UT WOS:000320108000001
ER
PT J
AU Gao, Z
Chen, JL
Fisch, NJ
AF Gao, Zhe
Chen, Jiale
Fisch, Nathaniel J.
TI Parallel rf Force Driven by the Inhomogeneity of Power Absorption in
Magnetized Plasma
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ENERGETIC ALPHA-PARTICLES; TOKAMAK PLASMAS; FLOW DRIVE; WAVES
AB A nonlinear parallel force can be exerted through the inhomogeneity of rf resonant absorption in a magnetized plasma. While providing no integrated force over a plasma volume, this force can redistribute momentum parallel to the magnetic field. Because flows and currents parallel to the magnetic field encounter different resistances, this redistribution can play a large role, in addition to the role played by the direct absorption of parallel momentum. For nearly perpendicular propagating waves in a tokamak plasma, this additional force is expected to affect significantly the toroidal rf-driven current and the toroidal flow drive.
C1 [Gao, Zhe] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China.
[Gao, Zhe; Chen, Jiale] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.
[Gao, Zhe; Chen, Jiale] Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China.
[Fisch, Nathaniel J.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Gao, Z (reprint author), Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China.
EM gaozhe@tsinghua.edu.cn
FU NSFC [10990214, 11261140327]; MOST of China [2013GB112001]; Tsinghua
University Initiative Scientific Research Program; US-DOE
[DE-AC02-09CH11466]
FX This work is supported by NSFC, under Grants No. 10990214 and No.
11261140327, MOST of China, under Contract No. 2013GB112001, and
Tsinghua University Initiative Scientific Research Program. One of us
(N. J. F.) acknowledges both the support of the US-DOE under Contract
No. DE-AC02-09CH11466 and the hospitality of the Weizmann Institute of
Science.
NR 21
TC 7
Z9 8
U1 2
U2 27
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 6
PY 2013
VL 110
IS 23
AR 235004
DI 10.1103/PhysRevLett.110.235004
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 161AW
UT WOS:000320163600008
PM 25167505
ER
PT J
AU Huang, XG
Liao, JF
AF Huang, Xu-Guang
Liao, Jinfeng
TI Axial Current Generation from Electric Field: Chiral Electric Separation
Effect
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY-ION COLLISIONS; VIOLATION; QCD; EVENT
AB We study a relativistic plasma containing charged chiral fermions in an external electric field. We show that with the presence of both vector and axial charge densities, the electric field can induce an axial current along its direction and thus cause chirality separation. We call it the chiral electric separation effect (CESE). On a very general basis, we argue that the strength of CESE is proportional to mu(V)mu(A) with mu(V) and mu(A) the chemical potentials for vector charge and axial charge. We then explicitly calculate this CESE conductivity coefficient in thermal QED at leading-log order. The CESE can manifest a new gapless wave mode propagating along the electric field. Potential observable effects of CESE in heavy-ion collisions are also discussed.
C1 [Huang, Xu-Guang; Liao, Jinfeng] Indiana Univ, Dept Phys, Bloomington, IN 47408 USA.
[Huang, Xu-Guang; Liao, Jinfeng] Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47408 USA.
[Liao, Jinfeng] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA.
RP Huang, XG (reprint author), Indiana Univ, Dept Phys, 2401 North Milo B Sampson Lane, Bloomington, IN 47408 USA.
EM xuhuang@indiana.edu; liaoji@indiana.edu
RI Huang, Xu-Guang/J-4988-2014
OI Huang, Xu-Guang/0000-0001-6293-4843
FU RIKEN BNL Research Center
FX We thank Dmitri Kharzeev, Shu Lin, Misha Stephanov, and Ho-Ung Yee for
helpful discussions. J. L. is grateful to the RIKEN BNL Research Center
for partial support.
NR 54
TC 42
Z9 42
U1 1
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JUN 6
PY 2013
VL 110
IS 23
AR 232302
DI 10.1103/PhysRevLett.110.232302
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 161AW
UT WOS:000320163600003
PM 25167486
ER
PT J
AU Galvis, JA
Suderow, H
Vieira, S
Bud'ko, SL
Canfield, PC
AF Galvis, J. A.
Suderow, H.
Vieira, S.
Bud'ko, S. L.
Canfield, P. C.
TI Scanning tunneling microscopy in the superconductor LaSb2
SO PHYSICAL REVIEW B
LA English
DT Article
ID MAGNETIC-PROPERTIES; MAGNETORESISTANCE; SPECTROSCOPY; CRYSTALS
AB We present very low temperature (0.15 K) scanning tunneling microscopy and spectroscopy experiments in the layered superconductor LaSb2. We obtain topographic microscopy images with surfaces showing hexagonal and square atomic size patterns, and observe in the tunneling conductance a superconducting gap. We find well defined quasiparticle peaks located at a bias voltage comparable to the weak coupling s-wave BCS expected gap value (0.17 meV). The amount of states at the Fermi level is however large and the curves are significantly broadened. We find T-c of 1.2 K by following the tunneling conductance with temperature.
C1 [Galvis, J. A.; Suderow, H.; Vieira, S.] Univ Autonoma Madrid, Dept Fis Mat Condensada, Lab Bajas Temp, Inst Ciencia Mat Nicolas Cabrera,Fac Ciencias, E-28049 Madrid, Spain.
[Galvis, J. A.; Suderow, H.; Vieira, S.] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid, Spain.
[Galvis, J. A.; Suderow, H.; Vieira, S.] UAM CSIC, Unidad Asociada Bajas Temp & Altos Campos Magnet, E-28049 Madrid, Spain.
[Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Suderow, H (reprint author), Univ Autonoma Madrid, Dept Fis Mat Condensada, Lab Bajas Temp, Inst Ciencia Mat Nicolas Cabrera,Fac Ciencias, Cantoblanco, E-28049 Madrid, Spain.
EM hermann.suderow@uam.es
RI Suderow, Hermann/L-6612-2013; Canfield, Paul/H-2698-2014; vieira,
sebastian/L-5216-2014
OI Suderow, Hermann/0000-0002-5902-1880; vieira,
sebastian/0000-0002-3854-1377
FU Spanish MINECO [CSD2007-00010, FIS2011-23488, ACI-2009-0905]; Comunidad
de Madrid through program Nanobiomagnet; COST [MP1201]; US Department of
Energy, Basic Energy Sciences, Division of Materials Sciences and
Engineering [DE-AC02-07CH11358]
FX This work was supported by the Spanish MINECO (Consolider Ingenio
Molecular Nanoscience CSD2007-00010 program, FIS2011-23488,
ACI-2009-0905), by the Comunidad de Madrid through program
Nanobiomagnet, and by COST MP1201. Work at the Ames Laboratory was
supported by the US Department of Energy, Basic Energy Sciences,
Division of Materials Sciences and Engineering under Contract No.
DE-AC02-07CH11358.
NR 40
TC 4
Z9 4
U1 1
U2 30
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD JUN 6
PY 2013
VL 87
IS 21
AR 214504
DI 10.1103/PhysRevB.87.214504
PG 5
WC Physics, Condensed Matter
SC Physics
GA 160GD
UT WOS:000320105000003
ER
PT J
AU Shekhter, A
Ramshaw, BJ
Liang, RX
Hardy, WN
Bonn, DA
Balakirev, FF
McDonald, RD
Betts, JB
Riggs, SC
Migliori, A
AF Shekhter, Arkady
Ramshaw, B. J.
Liang, Ruixing
Hardy, W. N.
Bonn, D. A.
Balakirev, Fedor F.
McDonald, Ross D.
Betts, Jon B.
Riggs, Scott C.
Migliori, Albert
TI Bounding the pseudogap with a line of phase transitions in
YBa2Cu3O6+delta
SO NATURE
LA English
DT Article
ID T-C SUPERCONDUCTOR; HIGH-TEMPERATURE SUPERCONDUCTORS; ELASTIC-CONSTANTS;
STATE; ANOMALIES; SYMMETRY; ORDER
AB Close to optimal doping, the copper oxide superconductors show 'strange metal' behaviour(1,2), suggestive of strong fluctuations associated with a quantum critical point(3-6). Such a critical point requires a line of classical phase transitions terminating at zero temperature near optimal doping inside the superconducting 'dome'. The underdoped region of the temperature-doping phase diagram from which superconductivity emerges is referred to as the 'pseudogap'(7-13) because evidence exists for partial gapping of the conduction electrons, but so far there is no compelling thermodynamic evidence as to whether the pseudogap is a distinct phase or a continuous evolution of physical properties on cooling. Here we report that the pseudogap in YBa2Cu3O6+delta is a distinct phase, bounded by a line of phase transitions. The doping dependence of this line is such that it terminates at zero temperature inside the superconducting dome. From this we conclude that quantum criticality drives the strange metallic behaviour and therefore superconductivity in the copper oxide superconductors.
C1 [Shekhter, Arkady; Ramshaw, B. J.; Balakirev, Fedor F.; McDonald, Ross D.; Betts, Jon B.; Migliori, Albert] Los Alamos Natl Lab, Natl High Magnet Field Lab, Pulsed Field Facil, Los Alamos, NM 87545 USA.
[Liang, Ruixing; Hardy, W. N.; Bonn, D. A.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
[Liang, Ruixing; Hardy, W. N.; Bonn, D. A.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada.
[Riggs, Scott C.] Stanford Univ, Stanford Inst Mat & Energy Sci, Stanford, CA 94305 USA.
[Riggs, Scott C.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Riggs, Scott C.] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
[Riggs, Scott C.] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA.
RP Shekhter, A (reprint author), Los Alamos Natl Lab, Natl High Magnet Field Lab, Pulsed Field Facil, POB 1663, Los Alamos, NM 87545 USA.
EM arkady.shekhter@gmail.com
RI McDonald, Ross/H-3783-2013; Ramshaw, Brad/J-3121-2013; Shekhter,
Arkady/H-4941-2015;
OI McDonald, Ross/0000-0002-0188-1087; Ramshaw, Brad/0000-0002-3222-5007;
Shekhter, Arkady/0000-0003-1550-3690; Mcdonald, Ross/0000-0002-5819-4739
FU National Science Foundation [DMR-0654118]; US Department of Energy;
State of Florida; Canadian Institute for Advanced Research; Natural
Science and Engineering Research Council
FX We thank E. Abrahams, J. Analytis, P. Bourges, A. Finkel'stein, M.
Greven, N. Harrison, K. Modic, C. Varma, I. Vishik and G. Yu for
critical reading of the manuscript and informative discussions. Work at
Los Alamos National Laboratory (LANL) was supported by National Science
Foundation grant DMR-0654118, by the US Department of Energy and by the
State of Florida. LANL is operated by LANS LLC. Work at the University
of British Columbia was supported by the Canadian Institute for Advanced
Research and the Natural Science and Engineering Research Council.
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U1 3
U2 108
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD JUN 6
PY 2013
VL 498
IS 7452
BP 75
EP 77
DI 10.1038/nature12165
PG 3
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 158DC
UT WOS:000319947800035
PM 23739425
ER
PT J
AU Byrne, JM
Coker, VS
Moise, S
Wincott, PL
Vaughan, DJ
Tuna, F
Arenholz, E
van der Laan, G
Pattrick, RAD
Lloyd, JR
Telling, ND
AF Byrne, J. M.
Coker, V. S.
Moise, S.
Wincott, P. L.
Vaughan, D. J.
Tuna, F.
Arenholz, E.
van der Laan, G.
Pattrick, R. A. D.
Lloyd, J. R.
Telling, N. D.
TI Controlled cobalt doping in biogenic magnetite nanoparticles
SO JOURNAL OF THE ROYAL SOCIETY INTERFACE
LA English
DT Article
DE coercivity; anisotropy; hyperthermia; Geobacter; Fe(III) reduction;
X-ray magnetic circular dichroism
ID AMB-1 MAGNETOTACTIC BACTERIA; 2P ABSORPTION-SPECTRA; MINERALIZATION
PATHWAYS; MOSSBAUER-SPECTROSCOPY; CANCER-THERAPY; IRON; MAGNETOSOMES;
HYPERTHERMIA; FERRIHYDRITE; REDUCTION
AB Cobalt-doped magnetite (CoxFe3-xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by superconducting quantum interference device magnetometry, X-ray magnetic circular dichroism, Mossbauer spectroscopy, etc., show dramatic increases in coercivity with increasing cobalt content without a major decrease in overall saturation magnetization. Structural and magnetization analyses reveal a reduction in particle size to less than 4 nm at the highest Co content, combined with an increase in the effective anisotropy of the magnetic nanoparticles. The potential use of these biogenic nanoparticles in aqueous suspensions for magnetic hyperthermia applications is demonstrated. Further analysis of the distribution of cations within the ferrite spinel indicates that the cobalt is predominantly incorporated in octahedral coordination, achieved by the substitution of Fe2+ site with Co2+, with up to 17 per cent Co substituted into tetrahedral sites.
C1 [Byrne, J. M.; Coker, V. S.; Wincott, P. L.; Vaughan, D. J.; van der Laan, G.; Pattrick, R. A. D.; Lloyd, J. R.] Univ Manchester, Sch Earth Atmospher & Environm Sci, Williamson Res Ctr Mol Environm Sci, Manchester M13 9PL, Lancs, England.
[Tuna, F.] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England.
[Byrne, J. M.] Univ Tubingen, Ctr Appl Geosci, D-72076 Tubingen, Germany.
[Moise, S.; Telling, N. D.] Keele Univ, Inst Sci & Technol Med, Stoke On Trent ST4 7QB, Staffs, England.
[Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[van der Laan, G.] Diamond Light Source, Didcot OX11 0DE, Oxon, England.
RP Byrne, JM (reprint author), Univ Manchester, Sch Earth Atmospher & Environm Sci, Williamson Res Ctr Mol Environm Sci, Manchester M13 9PL, Lancs, England.
EM james.byrne@uni-tuebingen.de
RI van der Laan, Gerrit/Q-1662-2015; Byrne, James/L-4860-2016
OI van der Laan, Gerrit/0000-0001-6852-2495; Byrne,
James/0000-0002-4399-7336
FU NERC; Office of Science, Office of Basic Energy Sciences, of the US
Department of Energy [DE-AC02-05CH11231]
FX This work was carried out with the financial support of an NERC PhD
studentship awarded to J.M.B. The Advanced Light Source is supported by
the Director, Office of Science, Office of Basic Energy Sciences, of the
US Department of Energy (under contract no. DE-AC02-05CH11231). We
acknowledge NERC Envirosync II for providing support for this work.
Additional thanks to Dr Michael Ward for assistance with and the
provision of access to transmission electron microscope by Leeds
Nanoscience and Nanotechnology Facility (LENNF). We also thank Dr Eva
Cespedes for assistance with the hyperthermia measurements.
NR 51
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U1 5
U2 57
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 1742-5689
J9 J R SOC INTERFACE
JI J. R. Soc. Interface
PD JUN 6
PY 2013
VL 10
IS 83
AR 20130134
DI 10.1098/rsif.2013.0134
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 131QN
UT WOS:000318009300014
PM 23594814
ER
PT J
AU Yang, B
Liu, RG
Huang, JJ
Sun, H
AF Yang, Biao
Liu, Rengang
Huang, Jijun
Sun, Hui
TI Reverse Dissolution as a Route in the Synthesis of Poly(vinyl butyral)
with High Butyral Contents
SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
LA English
DT Article
ID ULTRAFILTRATION MEMBRANES; THERMAL-PROPERTIES; HOMOGENEOUS PHASE;
ACETALIZATION
AB For applications in ultrafiltration membranes, cancer cell uptake, bioimaging, and diagnostics, a reverse dissolution approach, where swollen poly(vinyl alcohol) (PVA) particles are added to a butyraldehyde solution in ethanol, is employed to synthesize poly(vinyl bytyral) (PVB) with high contents of butyral groups. The final butyral group content (up to 84%) of PVB is found to be dependent strongly on the initial condensed state of PVA, the degree of polymerization of PVA, the purity and volume of ethanol, and the pH value. A maximum of butyral group content may be obtained under conditions: swollen PVA particles, (95 vol %) ethanol of 125-150 mL, and pH 1. This reverse dissolution approach has advantages such as a mild reaction condition (70 degrees C), no predissolution of PVA at high temperatures, no vacuum removal of water during reaction, and low water consumption in post-treatment of the product.
C1 [Yang, Biao; Liu, Rengang; Sun, Hui] Beijing Technol & Business Univ, Sch Mat Sci & Mech Engn, Beijing 100048, Peoples R China.
[Huang, Jijun] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China.
[Huang, Jijun] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Yang, B (reprint author), Beijing Technol & Business Univ, Sch Mat Sci & Mech Engn, Beijing 100048, Peoples R China.
EM ybiao@th.btbu.edu.cn; jjh06@mit.edu
FU National Institutes of Health/National Institute of Dental and
Craniofacial Research (NIH/NIDCR) of the USA [1 R01 DE015633]; Beijing
Natural Science Foundation [2132018]; Scientific Research Program of
Beijing Municipal Commission of Education of China [KM200910011005];
Funding Project for Academic Human Resources Development in Institutions
of Higher Learning under the Jurisdiction of Beijing Municipality of
China [PHR200907108, PHR201008248]
FX This work was partly supported by the National Institutes of
Health/National Institute of Dental and Craniofacial Research
(NIH/NIDCR) of the USA, under Grant No. 1 R01 DE015633. We especially
acknowledge the support by Beijing Natural Science Foundation (No.
2132018), along with the support by the Scientific Research Program of
Beijing Municipal Commission of Education (No. KM200910011005) of China
and Funding Project for Academic Human Resources Development in
Institutions of Higher Learning under the Jurisdiction of Beijing
Municipality of China (Nos. PHR200907108 and PHR201008248).
NR 26
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U1 1
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0888-5885
J9 IND ENG CHEM RES
JI Ind. Eng. Chem. Res.
PD JUN 5
PY 2013
VL 52
IS 22
SI SI
BP 7425
EP 7431
DI 10.1021/ie400559s
PG 7
WC Engineering, Chemical
SC Engineering
GA 160XD
UT WOS:000320152900039
ER
PT J
AU Campbell, J
Ellis, RK
Rontsch, R
AF Campbell, John
Ellis, R. Keith
Roentsch, Raoul
TI Single top production in association with a Z boson at the LHC
SO PHYSICAL REVIEW D
LA English
DT Article
ID CHANGING NEUTRAL CURRENTS; QCD CORRECTIONS; COLLISIONS; COLLIDERS;
INTEGRALS; SEARCH; DECAYS; MODEL; NLO
AB We present results for the production of a Z boson in association with single top at next-to-leading order (NLO), including the decay of the top quark and the Z boson. This electroweak process gives rise to the trilepton signature l(+)l(-)l'(+/-) + jets + missing energy. We present results for this signature and show that the rate is competitive with the contribution of the mixed strong and electroweak production process, t (t) over barZ. As such it should be observable in the full data sample fromLHCrunning at root s = 8 TeV. The single top + Z process is a hitherto unconsidered irreducible background in searches for flavor changing neutral current decays of the top quark in t (t) over bar production. For a selection of cuts used at the LHC involving a b-tag it is the dominant background. In the Appendices we also briefly discuss the impact of NLO corrections on the related tH process.
C1 [Campbell, John; Ellis, R. Keith; Roentsch, Raoul] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Campbell, J (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
EM johnmc@fnal.gov; ellis@fnal.gov; rontsch@fnal.gov
OI Rontsch, Raoul/0000-0002-8605-7141
FU US DOE [DE-AC02-06CH11357]
FX We gratefully acknowledge useful conversations with Kirill Melnikov and
Giulia Zanderighi. We also thank the authors of Ref. [21] for bringing
an error in an earlier version of this manuscript to our attention. This
research is supported by the US DOE under Contract No.
DE-AC02-06CH11357.
NR 40
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U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 5
PY 2013
VL 87
IS 11
AR 114006
DI 10.1103/PhysRevD.87.114006
PG 11
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 160GM
UT WOS:000320106100005
ER
PT J
AU Lees, JP
Poireau, V
Tisserand, V
Grauges, E
Palano, A
Eigen, G
Stugu, B
Brown, DN
Kerth, LT
Kolomensky, YG
Lee, M
Lynch, G
Koch, H
Schroeder, T
Hearty, C
Mattison, TS
McKenna, JA
So, RY
Khan, A
Blinov, VE
Buzykaev, AR
Druzhinin, VP
Golubev, VB
Kravchenko, EA
Onuchin, AP
Serednyakov, SI
Skovpen, YI
Solodov, EP
Todyshev, KY
Yushkov, AN
Kirkby, D
Lankford, AJ
Mandelkern, M
Dey, B
Gary, JW
Long, O
Vitug, GM
Campagnari, C
Sevilla, MF
Hong, TM
Kovalskyi, D
Richman, JD
West, CA
Eisner, AM
Lockman, WS
Martinez, AJ
Schumm, BA
Seiden, A
Chao, DS
Cheng, CH
Echenard, B
Flood, KT
Hitlin, DG
Ongmongkolkul, P
Porter, FC
Andreassen, R
Huard, Z
Meadows, BT
Sokoloff, MD
Sun, L
Bloom, PC
Ford, WT
Gaz, A
Nauenberg, U
Smith, JG
Wagner, SR
Ayad, R
Toki, WH
Spaan, B
Schubert, KR
Schwierz, R
Bernard, D
Verderi, M
Playfer, S
Bettoni, D
Bozzi, C
Calabrese, R
Cibinetto, G
Fioravanti, E
Garzia, I
Luppi, E
Piemontese, L
Santoro, V
Baldini-Ferroli, R
Calcaterra, A
de Sangro, R
Finocchiaro, G
Martellotti, S
Patteri, P
Peruzzi, IM
Piccolo, M
Rama, M
Zallo, A
Contri, R
Guido, E
Lo Vetere, M
Monge, MR
Passaggio, S
Patrignani, C
Robutti, E
Bhuyan, B
Prasad, V
Morii, M
Adametz, A
Uwer, U
Lacker, HM
Dauncey, PD
Mallik, U
Chen, C
Cochran, J
Meyer, WT
Prell, S
Rubin, AE
Gritsan, AV
Arnaud, N
Davier, M
Derkach, D
Grosdidier, G
Le Diberder, F
Lutz, AM
Malaescu, B
Roudeau, P
Stocchi, A
Wormser, G
Lange, DJ
Wright, DM
Coleman, JP
Fry, JR
Gabathuler, E
Hutchcroft, DE
Payne, DJ
Touramanis, C
Bevan, AJ
Di Lodovico, F
Sacco, R
Cowan, G
Bougher, J
Brown, DN
Davis, CL
Denig, AG
Fritsch, M
Gradl, W
Griessinger, K
Hafner, A
Prencipe, E
Barlow, RJ
Lafferty, GD
Behn, E
Cenci, R
Hamilton, B
Jawahery, A
Roberts, DA
Cowan, R
Dujmic, D
Sciolla, G
Cheaib, R
Patel, PM
Robertson, SH
Biassoni, P
Neri, N
Palombo, F
Cremaldi, L
Godang, R
Sonnek, P
Summers, DJ
Nguyen, X
Simard, M
Taras, P
De Nardo, G
Monorchio, D
Onorato, G
Sciacca, C
Martinelli, M
Raven, G
Jessop, CP
LoSecco, JM
Honscheid, K
Kass, R
Brau, J
Frey, R
Sinev, NB
Strom, D
Torrence, E
Feltresi, E
Margoni, M
Morandin, M
Posocco, M
Rotondo, M
Simi, G
Simonetto, F
Stroili, R
Akar, S
Ben-Haim, E
Bomben, M
Bonneaud, GR
Briand, H
Calderini, G
Chauveau, J
Leruste, P
Marchiori, G
Ocariz, J
Sitt, S
Biasini, M
Manoni, E
Pacetti, S
Rossi, A
Angelini, C
Batignani, G
Bettarini, S
Carpinelli, M
Casarosa, G
Cervelli, A
Forti, F
Giorgi, MA
Lusiani, A
Oberhof, B
Paoloni, E
Perez, A
Rizzo, G
Walsh, JJ
Pegna, DL
Olsen, J
Smith, AJS
Faccini, R
Ferrarotto, F
Ferroni, F
Gaspero, M
Gioi, LL
Piredda, G
Bunger, C
Grunberg, O
Hartmann, T
Leddig, T
Voss, C
Waldi, R
Adye, T
Olaiya, EO
Wilson, FF
Emery, S
de Monchenault, GH
Vasseur, G
Yeche, C
Anulli, F
Aston, D
Bard, DJ
Benitez, JF
Cartaro, C
Convery, MR
Dorfan, J
Dubois-Felsmann, GP
Dunwoodie, W
Ebert, M
Field, RC
Fulsom, BG
Gabareen, AM
Graham, MT
Hast, C
Innes, WR
Kim, P
Kocian, ML
Leith, DWGS
Lewis, P
Lindemann, D
Lindquist, B
Luitz, S
Luth, V
Lynch, HL
MacFarlane, DB
Muller, DR
Neal, H
Nelson, S
Perl, M
Pulliam, T
Ratcliff, BN
Roodman, A
Salnikov, AA
Schindler, RH
Snyder, A
Su, D
Sullivan, MK
Va'vra, J
Wagner, AP
Wang, WF
Wisniewski, WJ
Wittgen, M
Wright, DH
Wulsin, HW
Ziegler, V
Park, W
Purohit, MV
White, RM
Wilson, JR
Randle-Conde, A
Sekula, SJ
Bellis, M
Burchat, PR
Miyashita, TS
Puccio, EMT
Alam, MS
Ernst, JA
Gorodeisky, R
Guttman, N
Peimer, DR
Soffer, A
Spanier, SM
Ritchie, JL
Ruland, AM
Schwitters, RF
Wray, BC
Izen, JM
Lou, XC
Bianchi, F
De Mori, F
Filippi, A
Gamba, D
Zambito, S
Lanceri, L
Vitale, L
Martinez-Vidal, F
Oyanguren, A
Villanueva-Perez, P
Ahmed, H
Albert, J
Banerjee, S
Bernlochner, FU
Choi, HHF
King, GJ
Kowalewski, R
Lewczuk, MJ
Lueck, T
Nugent, IM
Roney, JM
Sobie, RJ
Tasneem, N
Gershon, TJ
Harrison, PF
Latham, TE
Band, HR
Dasu, S
Pan, Y
Prepost, R
Wu, SL
AF Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Palano, A.
Eigen, G.
Stugu, B.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu. G.
Lee, M.
Lynch, G.
Koch, H.
Schroeder, T.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
So, R. Y.
Khan, A.
Blinov, V. E.
Buzykaev, A. R.
Druzhinin, V. P.
Golubev, V. B.
Kravchenko, E. A.
Onuchin, A. P.
Serednyakov, S. I.
Skovpen, Yu. I.
Solodov, E. P.
Todyshev, K. Yu.
Yushkov, A. N.
Kirkby, D.
Lankford, A. J.
Mandelkern, M.
Dey, B.
Gary, J. W.
Long, O.
Vitug, G. M.
Campagnari, C.
Sevilla, M. Franco
Hong, T. M.
Kovalskyi, D.
Richman, J. D.
West, C. A.
Eisner, A. M.
Lockman, W. S.
Martinez, A. J.
Schumm, B. A.
Seiden, A.
Chao, D. S.
Cheng, C. H.
Echenard, B.
Flood, K. T.
Hitlin, D. G.
Ongmongkolkul, P.
Porter, F. C.
Andreassen, R.
Huard, Z.
Meadows, B. T.
Sokoloff, M. D.
Sun, L.
Bloom, P. C.
Ford, W. T.
Gaz, A.
Nauenberg, U.
Smith, J. G.
Wagner, S. R.
Ayad, R.
Toki, W. H.
Spaan, B.
Schubert, K. R.
Schwierz, R.
Bernard, D.
Verderi, M.
Playfer, S.
Bettoni, D.
Bozzi, C.
Calabrese, R.
Cibinetto, G.
Fioravanti, E.
Garzia, I.
Luppi, E.
Piemontese, L.
Santoro, V.
Baldini-Ferroli, R.
Calcaterra, A.
de Sangro, R.
Finocchiaro, G.
Martellotti, S.
Patteri, P.
Peruzzi, I. M.
Piccolo, M.
Rama, M.
Zallo, A.
Contri, R.
Guido, E.
Lo Vetere, M.
Monge, M. R.
Passaggio, S.
Patrignani, C.
Robutti, E.
Bhuyan, B.
Prasad, V.
Morii, M.
Adametz, A.
Uwer, U.
Lacker, H. M.
Dauncey, P. D.
Mallik, U.
Chen, C.
Cochran, J.
Meyer, W. T.
Prell, S.
Rubin, A. E.
Gritsan, A. V.
Arnaud, N.
Davier, M.
Derkach, D.
Grosdidier, G.
Le Diberder, F.
Lutz, A. M.
Malaescu, B.
Roudeau, P.
Stocchi, A.
Wormser, G.
Lange, D. J.
Wright, D. M.
Coleman, J. P.
Fry, J. R.
Gabathuler, E.
Hutchcroft, D. E.
Payne, D. J.
Touramanis, C.
Bevan, A. J.
Di Lodovico, F.
Sacco, R.
Cowan, G.
Bougher, J.
Brown, D. N.
Davis, C. L.
Denig, A. G.
Fritsch, M.
Gradl, W.
Griessinger, K.
Hafner, A.
Prencipe, E.
Barlow, R. J.
Lafferty, G. D.
Behn, E.
Cenci, R.
Hamilton, B.
Jawahery, A.
Roberts, D. A.
Cowan, R.
Dujmic, D.
Sciolla, G.
Cheaib, R.
Patel, P. M.
Robertson, S. H.
Biassoni, P.
Neri, N.
Palombo, F.
Cremaldi, L.
Godang, R.
Sonnek, P.
Summers, D. J.
Nguyen, X.
Simard, M.
Taras, P.
De Nardo, G.
Monorchio, D.
Onorato, G.
Sciacca, C.
Martinelli, M.
Raven, G.
Jessop, C. P.
LoSecco, J. M.
Honscheid, K.
Kass, R.
Brau, J.
Frey, R.
Sinev, N. B.
Strom, D.
Torrence, E.
Feltresi, E.
Margoni, M.
Morandin, M.
Posocco, M.
Rotondo, M.
Simi, G.
Simonetto, F.
Stroili, R.
Akar, S.
Ben-Haim, E.
Bomben, M.
Bonneaud, G. R.
Briand, H.
Calderini, G.
Chauveau, J.
Leruste, Ph.
Marchiori, G.
Ocariz, J.
Sitt, S.
Biasini, M.
Manoni, E.
Pacetti, S.
Rossi, A.
Angelini, C.
Batignani, G.
Bettarini, S.
Carpinelli, M.
Casarosa, G.
Cervelli, A.
Forti, F.
Giorgi, M. A.
Lusiani, A.
Oberhof, B.
Paoloni, E.
Perez, A.
Rizzo, G.
Walsh, J. J.
Pegna, D. Lopes
Olsen, J.
Smith, A. J. S.
Faccini, R.
Ferrarotto, F.
Ferroni, F.
Gaspero, M.
Gioi, L. Li
Piredda, G.
Buenger, C.
Gruenberg, O.
Hartmann, T.
Leddig, T.
Voss, C.
Waldi, R.
Adye, T.
Olaiya, E. O.
Wilson, F. F.
Emery, S.
de Monchenault, G. Hamel
Vasseur, G.
Yeche, Ch.
Anulli, F.
Aston, D.
Bard, D. J.
Benitez, J. F.
Cartaro, C.
Convery, M. R.
Dorfan, J.
Dubois-Felsmann, G. P.
Dunwoodie, W.
Ebert, M.
Field, R. C.
Fulsom, B. G.
Gabareen, A. M.
Graham, M. T.
Hast, C.
Innes, W. R.
Kim, P.
Kocian, M. L.
Leith, D. W. G. S.
Lewis, P.
Lindemann, D.
Lindquist, B.
Luitz, S.
Luth, V.
Lynch, H. L.
MacFarlane, D. B.
Muller, D. R.
Neal, H.
Nelson, S.
Perl, M.
Pulliam, T.
Ratcliff, B. N.
Roodman, A.
Salnikov, A. A.
Schindler, R. H.
Snyder, A.
Su, D.
Sullivan, M. K.
Va'vra, J.
Wagner, A. P.
Wang, W. F.
Wisniewski, W. J.
Wittgen, M.
Wright, D. H.
Wulsin, H. W.
Ziegler, V.
Park, W.
Purohit, M. V.
White, R. M.
Wilson, J. R.
Randle-Conde, A.
Sekula, S. J.
Bellis, M.
Burchat, P. R.
Miyashita, T. S.
Puccio, E. M. T.
Alam, M. S.
Ernst, J. A.
Gorodeisky, R.
Guttman, N.
Peimer, D. R.
Soffer, A.
Spanier, S. M.
Ritchie, J. L.
Ruland, A. M.
Schwitters, R. F.
Wray, B. C.
Izen, J. M.
Lou, X. C.
Bianchi, F.
De Mori, F.
Filippi, A.
Gamba, D.
Zambito, S.
Lanceri, L.
Vitale, L.
Martinez-Vidal, F.
Oyanguren, A.
Villanueva-Perez, P.
Ahmed, H.
Albert, J.
Banerjee, Sw.
Bernlochner, F. U.
Choi, H. H. F.
King, G. J.
Kowalewski, R.
Lewczuk, M. J.
Lueck, T.
Nugent, I. M.
Roney, J. M.
Sobie, R. J.
Tasneem, N.
Gershon, T. J.
Harrison, P. F.
Latham, T. E.
Band, H. R.
Dasu, S.
Pan, Y.
Prepost, R.
Wu, S. L.
CA BABAR Collaboration
TI Search for B -> K-(*()) v(v)over-bar and invisible quarkonium decays
SO PHYSICAL REVIEW D
LA English
DT Article
AB We search for the flavor-changing neutral-current decays B -> K-(*()) v (v) over bar, and the invisible decays J/psi -> v (v) over bar and psi(2S) -> v (v) over bar via B -> K-(*())J/psi and B -> K-(*()) psi(2S), respectively, using a data sample of 471 x 10(6) B (B) over bar pairs collected by the BABAR experiment. We fully reconstruct the hadronBic decay of one of the B mesons in the Y(4S) -> B (B) over bar decay, and search for the B -> K-(*()) v (v) over bar decay in the rest of the event. We observe no significant excess of signal decays over background and report branching fraction upper limits of B(B+ -> K+ v (v) over bar) < 3.7 x 10(-5), B(B-0 -> K-0 v<(v)over bar>) < 8.1 x 10(-5), B(B+ -> K*(+) v<(v)over bar>) < 11.6 x 10(-5), B(B-0 -> K*(0) v<(v)over bar>), < 9.3 x 10(-5), and combined upper limits of B(B -> K v<(v)over bar>) < 3.2 x 10(-5) and B(B -> K* v<(v)over bar>) < 7.9 x 10(-5), all at the 90% confidence level. For the invisible quarkonium decays, we report branching fraction upper limits of B(J/psi -> v<(v)over bar>) < 3.9 x 10(-3) and B(psi(2S) -> v<(v)over bar> < 15.5 x 10(-3) at the 90% confidence level. Using the improved kinematic resolution achieved from hadronic reconstruction, we also provide partial branching fraction limits for the B -> K-(*()) v<(v)over bar> decays over the full kinematic spectrum.
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RP Lees, JP (reprint author), Univ Savoie, CNRS, IN2P3, LAPP, F-74941 Annecy Le Vieux, France.
RI Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Di Lodovico,
Francesca/L-9109-2016; Calcaterra, Alessandro/P-5260-2015; Frey,
Raymond/E-2830-2016; Lusiani, Alberto/N-2976-2015; Patrignani,
Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Forti,
Francesco/H-3035-2011; Oyanguren, Arantza/K-6454-2014; Luppi,
Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Kravchenko,
Evgeniy/F-5457-2015; Calabrese, Roberto/G-4405-2015; Martinez Vidal,
F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere,
Maurizio/J-5049-2012
OI Morandin, Mauro/0000-0003-4708-4240; Lusiani,
Alberto/0000-0002-6876-3288; Di Lodovico, Francesca/0000-0003-3952-2175;
Calcaterra, Alessandro/0000-0003-2670-4826; Frey,
Raymond/0000-0003-0341-2636; Lusiani, Alberto/0000-0002-6876-3288;
Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria
Roberta/0000-0003-1633-3195; Forti, Francesco/0000-0001-6535-7965;
Oyanguren, Arantza/0000-0002-8240-7300; Luppi,
Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900;
Calabrese, Roberto/0000-0002-1354-5400; Martinez Vidal,
F*/0000-0001-6841-6035; Kolomensky, Yury/0000-0001-8496-9975; Lo Vetere,
Maurizio/0000-0002-6520-4480
FU U.S. Department of Energy and National Science Foundation; Natural
Sciences and Engineering Research Council (Canada); Commissariat a
l'Energie Atomique and Institut National de Physique Nucleaire et de
Physique des Particules (France); Bundesministerium fur Bildung und
Forschung and Deutsche Forschungsgemeinschaft (Germany); Istituto
Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental
Research on Matter (The Netherlands); Research Council of Norway;
Ministry of Education and Science of the Russian Federation, Ministerio
de Economia y Competitividad (Spain); Science and Technology Facilities
Council (United Kingdom); Marie-Curie IEF program (European Union); A.
P. Sloan Foundation (USA)
FX We are grateful for the extraordinary contributions of our PEP-II
colleagues in achieving the excellent luminosity and machine conditions
that have made this work possible. The success of this project also
relies critically on the expertise and dedication of the computing
organizations that support BABAR. The collaborating institutions wish to
thank SLAC for its support and the kind hospitality extended to them.
This work is supported by the U.S. Department of Energy and National
Science Foundation, the Natural Sciences and Engineering Research
Council (Canada), the Commissariat a l'Energie Atomique and Institut
National de Physique Nucleaire et de Physique des Particules (France),
the Bundesministerium fur Bildung und Forschung and Deutsche
Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica
Nucleare (Italy), the Foundation for Fundamental Research on Matter (The
Netherlands), the Research Council of Norway, the Ministry of Education
and Science of the Russian Federation, Ministerio de Economia y
Competitividad (Spain), and the Science and Technology Facilities
Council (United Kingdom). Individuals have received support from the
Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation
(USA).
NR 32
TC 19
Z9 19
U1 0
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD JUN 5
PY 2013
VL 87
IS 11
AR 112005
DI 10.1103/PhysRevD.87.112005
PG 13
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 160GM
UT WOS:000320106100001
ER
EF