FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Shuck, CE Frazee, M Gillman, A Beason, MT Gunduz, IE Matous, K Winarski, R Mukasyan, AS AF Shuck, Christopher E. Frazee, Mathew Gillman, Andrew Beason, Matthew T. Gunduz, Ibrahim Emre Matous, Karel Winarski, Robert Mukasyan, Alexander S. TI X-ray nanotomography and focused-ion-beam sectioning for quantitative three-dimensional analysis of nanocomposites SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Article DE X-ray nanotomography; scanning electron microscopy; quantitative image analysis; three-dimensional reconstruction; nanocomposite powder ID SIZE; MICROSCOPY; COMBUSTION; SYSTEMS AB Knowing the relationship between three-dimensional structure and properties is paramount for complete understanding of material behavior. In this work, the internal nanostructure of micrometer-size (similar to 10 mu m) composite Ni/Al particles was analyzed using two different approaches. The first technique, synchrotron-based X-ray nanotomography, is a nondestructive method that can attain resolutions of tens of nanometers. The second is a destructive technique with sub-nanometer resolution utilizing scanning electron microscopy combined with an ion beam and ` slice and view' analysis, where the sample is repeatedly milled and imaged. The obtained results suggest that both techniques allow for an accurate characterization of the larger-scale structures, while differences exist in the characterization of the smallest features. Using the Monte Carlo method, the effective resolution of the X-ray nanotomography technique was determined to be similar to 48 nm, while focused-ion-beam sectioning with 'slice and view' analysis was similar to 5 nm. C1 [Shuck, Christopher E.; Mukasyan, Alexander S.] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA. [Frazee, Mathew; Gillman, Andrew; Matous, Karel] Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA. [Beason, Matthew T.; Gunduz, Ibrahim Emre] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA. [Winarski, Robert] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Mukasyan, AS (reprint author), Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA. EM amoukasi@nd.edu RI Matous, Karel/A-9230-2013; OI Shuck, Christopher/0000-0002-1274-8484 FU Department of Energy, National Nuclear Security Administration as part of the Predictive Science Academic Alliance Program II [DE-NA0002377]; Defense Threat Reduction Agency (DTRA) [HDTRA1-10-1-0119]; National Defense Science and Engineering Graduate Fellowship; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work was supported by the Department of Energy, National Nuclear Security Administration, under Award Number DE-NA0002377 as part of the Predictive Science Academic Alliance Program II. Funding from the Defense Threat Reduction Agency (DTRA), Grant Number HDTRA1-10-1-0119. Counter-WMD basic research program, Dr Suhithi M. Peiris, Program Director, is also gratefully acknowledged. Funding from the National Defense Science and Engineering Graduate Fellowship is acknowledged. Use of the Center for Nanoscale Materials and the Advanced Photon Source, both Office of Science user facilities, was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 29 TC 4 Z9 4 U1 4 U2 8 PU INT UNION CRYSTALLOGRAPHY PI CHESTER PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND SN 1600-5775 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD JUL PY 2016 VL 23 BP 990 EP 996 DI 10.1107/S1600577516007992 PN 4 PG 7 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA DR5PJ UT WOS:000379954600017 PM 27359148 ER PT J AU Bicer, T Gursoy, D Kettimuthu, R De Carlo, F Foster, IT AF Bicer, Tekin Gursoy, Doga Kettimuthu, Rajkumar De Carlo, Francesco Foster, Ian T. TI Optimization of tomographic reconstruction workflows on geographically distributed resources SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Article DE tomography; scientific workflows; performance modeling ID IMAGE-RECONSTRUCTION; ITERATIVE RECONSTRUCTION; FLUORESCENCE TOMOGRAPHY; COMPUTED-TOMOGRAPHY; SOFTWARE; SERVICES; STORAGE; TOMOPY; CLOUD; CT AB New technological advancements in synchrotron light sources enable data acquisitions at unprecedented levels. This emergent trend affects not only the size of the generated data but also the need for larger computational resources. Although beamline scientists and users have access to local computational resources, these are typically limited and can result in extended execution times. Applications that are based on iterative processing as in tomographic reconstruction methods require high-performance compute clusters for timely analysis of data. Here, time-sensitive analysis and processing of Advanced Photon Source data on geographically distributed resources are focused on. Two main challenges are considered: (i) modeling of the performance of tomographic reconstruction workflows and (ii) transparent execution of these workflows on distributed resources. For the former, three main stages are considered: (i) data transfer between storage and computational resources, (i) wait/queue time of reconstruction jobs at compute resources, and (iii) computation of reconstruction tasks. These performance models allow evaluation and estimation of the execution time of any given iterative tomographic reconstruction workflow that runs on geographically distributed resources. For the latter challenge, a workflow management system is built, which can automate the execution of workflows and minimize the user interaction with the underlying infrastructure. The system utilizes Globus to perform secure and efficient data transfer operations. The proposed models and the workflow management system are evaluated by using three high-performance computing and two storage resources, all of which are geographically distributed. Workflows were created with different computational requirements using two compute-intensive tomographic reconstruction algorithms. Experimental evaluation shows that the proposed models and system can be used for selecting the optimum resources, which in turn can provide up to 3.13x speedup (on experimented resources). Moreover, the error rates of the models range between 2.1 and 23.3% (considering workflow execution times), where the accuracy of the model estimations increases with higher computational demands in reconstruction tasks. C1 [Bicer, Tekin; Kettimuthu, Rajkumar; Foster, Ian T.] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA. [Gursoy, Doga; De Carlo, Francesco] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA. [Kettimuthu, Rajkumar; Foster, Ian T.] Univ Chicago, Computat Inst, Chicago, IL 60637 USA. [Kettimuthu, Rajkumar; Foster, Ian T.] Argonne Natl Lab, Argonne, IL 60439 USA. [Foster, Ian T.] Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA. RP Bicer, T (reprint author), Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA. EM bicer@anl.gov OI Bicer, Tekin/0000-0002-8428-5159 FU US Department of Energy, Office of Science [DE-AC02-06CH11357] FX This material is based upon work supported by the US Department of Energy, Office of Science, under contract number DE-AC02-06CH11357. NR 36 TC 0 Z9 0 U1 3 U2 6 PU INT UNION CRYSTALLOGRAPHY PI CHESTER PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND SN 1600-5775 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD JUL PY 2016 VL 23 BP 997 EP 1005 DI 10.1107/S1600577516007980 PN 4 PG 9 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA DR5PJ UT WOS:000379954600018 PM 27359149 ER PT J AU Sun, T Fezzaa, K AF Sun, Tao Fezzaa, Kamel TI HiSPoD: a program for high-speed polychromatic X-ray diffraction experiments and data analysis on polycrystalline samples SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Software Review DE X-ray diffraction; high speed; polychromatic beam; dynamic processes ID DYNAMICS AB A high-speed X-ray diffraction technique was recently developed at the 32-ID-B beamline of the Advanced Photon Source for studying highly dynamic, yet non-repeatable and irreversible, materials processes. In experiments, the microstructure evolution in a single material event is probed by recording a series of diffraction patterns with extremely short exposure time and high frame rate. Owing to the limited flux in a short pulse and the polychromatic nature of the incident X-rays, analysis of the diffraction data is challenging. Here, HiSPoD, a stand-alone Matlab-based software for analyzing the polychromatic X-ray diffraction data from polycrystalline samples, is described. With HiSPoD, researchers are able to perform diffraction peak indexing, extraction of onedimensional intensity profiles by integrating a two-dimensional diffraction pattern, and, more importantly, quantitative numerical simulations to obtain precise sample structure information. C1 [Sun, Tao; Fezzaa, Kamel] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, 9700 South Cass Ave, Argonne, IL 60439 USA. RP Sun, T (reprint author), Argonne Natl Lab, Adv Photon Source, Xray Sci Div, 9700 South Cass Ave, Argonne, IL 60439 USA. EM taosun@aps.anl.gov FU DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357] FX The authors would like to thank Alex Deriy at the APS, Professor Weinong Chen's group at Purdue University, and Dr Shengnian Luo's group at The Peac Institute of Multiscale Sciences for their contributions in developing the highspeed diffraction technique. We thank Matt Hudspeth, Niranjan Parab and Zherui Guo in Professor Weinong Chen's group for sharing the diffraction data present here. We are also grateful to other members of the Imaging Group at the APS and other user groups of the 32-ID-B beamline for the valuable discussions. This research used resources of the Advanced Photon Source, a US Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. NR 17 TC 0 Z9 0 U1 2 U2 2 PU INT UNION CRYSTALLOGRAPHY PI CHESTER PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND SN 1600-5775 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD JUL PY 2016 VL 23 BP 1046 EP 1053 DI 10.1107/S1600577516005804 PN 4 PG 8 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA DR5PJ UT WOS:000379954600024 PM 27359155 ER PT J AU Bosco, N Silverman, TJ Kurtz, S AF Bosco, Nick Silverman, Timothy J. Kurtz, Sarah TI Climate specific thermomechanical fatigue of flat plate photovoltaic module solder joints SO MICROELECTRONICS RELIABILITY LA English DT Article DE Photovoltaic reliability; Solder fatigue; Acceleration factor; Thermal cycling ID RELIABILITY AB FEM simulations of PbSn solder fatigue damage are used to evaluate seven cities that represent a variety of climatic zones. It is shown that the rate of solder fatigue damage is not ranked with the cities' climate designations. For an accurate ranking, the mean maximum daily temperature, daily temperature change and a characteristic of clouding events are all required. A physics-based empirical equation is presented that accurately calculates solder fatigue damage according to these three factors. An FEM comparison of solder damage accumulated through service and thermal cycling demonstrates the number of cycles required for an equivalent exposure. For an equivalent 25-year exposure, the number of thermal cycles (-40 degrees C to 85 degrees C) required ranged from roughly 100 to 630 for the cities examined. It is demonstrated that increasing the maximum cycle temperature may significantly reduce the number of thermal cycles required for an equivalent exposure. Published by Elsevier Ltd. C1 [Bosco, Nick; Silverman, Timothy J.; Kurtz, Sarah] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Bosco, N (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. FU Solar Energy Research Institute for India; U.S. (SERIIUS) - U.S. Department of Energy (Office of Science, Office of Basic Energy Sciences, and Energy Efficiency and Renewable Energy, Solar Energy Technology Program) [DE AC36-08G028308]; Government of India [IUSSTF/JCERDC-SERIIUS/2012] FX This research is based upon work supported in part under the Solar Energy Research Institute for India and the U.S. (SERIIUS) funded jointly by the U.S. Department of Energy subcontract DE AC36-08G028308 (Office of Science, Office of Basic Energy Sciences, and Energy Efficiency and Renewable Energy, Solar Energy Technology Program, with support from International Affairs) and the Government of India subcontract IUSSTF/JCERDC-SERIIUS/2012 dated 22nd Nov. 2012. NR 9 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0026-2714 J9 MICROELECTRON RELIAB JI Microelectron. Reliab. PD JUL PY 2016 VL 62 BP 124 EP 129 DI 10.1016/j.microrel.2016.03.024 PG 6 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied SC Engineering; Science & Technology - Other Topics; Physics GA DR1ZY UT WOS:000379705600017 ER PT J AU Oksuz, S Gorantla, VS AF Oksuz, Sinan Gorantla, Vijay S. TI Comments on "reflectance confocal microscopy as a useful diagnostic tool for monitoring of skin containing vascularized allograft rejection: A preliminary study on rats" SO MICROSURGERY LA English DT Letter C1 [Oksuz, Sinan] Gulhane Mil Med Acad, Sch Med, Dept Plast Reconstruct & Aesthet Surg, Ankara, Turkey. [Oksuz, Sinan] Gulhane Mil Med Acad, Sch Med, Burn Unit, Ankara, Turkey. [Gorantla, Vijay S.] UPMC, Dept Plast Surg, Pittsburgh, PA USA. [Gorantla, Vijay S.] UPMC, Reconstruct Transplantat Program, Pittsburgh, PA USA. [Gorantla, Vijay S.] Univ Pittsburgh, McGowan Inst Regenerat Med, Clin Initiat & Res Innovat, Pittsburgh, PA 15260 USA. [Gorantla, Vijay S.] Univ Pittsburgh, Ctr Mil Med, Pittsburgh, PA 15260 USA. [Gorantla, Vijay S.] Vet Affairs Pittsburgh, Vascularized Composite Allotransplantat Program, ORISE, Pittsburgh, PA USA. [Gorantla, Vijay S.] SAMMC, Pittsburgh, PA USA. [Gorantla, Vijay S.] USAISR, Pittsburgh, PA USA. RP Oksuz, S (reprint author), Gulhane Askeri Tip Akad, Tip Fak, Plast Rekonstruktif & Estetik Cerrahi Klin, Gn Tevfik Saglam Caddesi, TR-06010 Ankara, Turkey. EM sinanoksuz@gmail.com NR 4 TC 0 Z9 0 U1 1 U2 1 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0738-1085 EI 1098-2752 J9 MICROSURG JI Microsurgery PD JUL PY 2016 VL 36 IS 5 BP 435 EP 436 DI 10.1002/micr.22461 PG 2 WC Surgery SC Surgery GA DR6MP UT WOS:000380016300013 ER PT J AU Abeysekara, AU Archambault, S Archer, A Benbow, W Bird, R Biteau, J Buchovecky, M Buckley, JH Bugaev, V Byrum, K Cardenzana, JV Cerruti, M Chen, X Christiansen, JL Ciupik, L Connolly, MP Cui, W Dickinson, HJ Dumm, J Eisch, JD Errando, M Falcone, A Feng, Q Finley, JP Fleischhack, H Flinders, A Fortin, P Fortson, L Furniss, A Gillanders, GH Griffin, S Grube, J Gyuk, G Huetten, M Hanna, D Holder, J Humensky, TB Johnson, CA Kaaret, P Kar, P Kelley-Hoskins, N Kertzman, M Kieda, D Krause, M Krennrich, F Lang, MJ Maier, G McArthur, S McCann, A Meagher, K Moriarty, P Mukherjee, R Nieto, D O'Brien, S de Bhroithe, AO Ong, RA Otte, AN Park, N Pelassa, V Petrashyk, A Petry, D Pohl, M Popkow, A Pueschel, E Quinn, J Ragan, K Ratliff, G Reyes, LC Reynolds, PT Reynolds, K Richards, GT Roache, E Rulten, C Santander, M Sembroski, GH Shahinyan, K Smith, AW Staszak, D Telezhinsky, I Tucci, JV Tyler, J Vincent, S Wakely, SP Weiner, OM Weinstein, A Wilhelm, A Williams, DA Zitzer, B AF Abeysekara, A. U. Archambault, S. Archer, A. Benbow, W. Bird, R. Biteau, J. Buchovecky, M. Buckley, J. H. Bugaev, V. Byrum, K. Cardenzana, J. V. Cerruti, M. Chen, X. Christiansen, J. L. Ciupik, L. Connolly, M. P. Cui, W. Dickinson, H. J. Dumm, J. Eisch, J. D. Errando, M. Falcone, A. Feng, Q. Finley, J. P. Fleischhack, H. Flinders, A. Fortin, P. Fortson, L. Furniss, A. Gillanders, G. H. Griffin, S. Grube, J. Gyuk, G. Huetten, M. Hanna, D. Holder, J. Humensky, T. B. Johnson, C. A. Kaaret, P. Kar, P. Kelley-Hoskins, N. Kertzman, M. Kieda, D. Krause, M. Krennrich, F. Lang, M. J. Maier, G. McArthur, S. McCann, A. Meagher, K. Moriarty, P. Mukherjee, R. Nieto, D. O'Brien, S. de Bhroithe, A. O'Faolain Ong, R. A. Otte, A. N. Park, N. Pelassa, V. Petrashyk, A. Petry, D. Pohl, M. Popkow, A. Pueschel, E. Quinn, J. Ragan, K. Ratliff, G. Reyes, L. C. Reynolds, P. T. Reynolds, K. Richards, G. T. Roache, E. Rulten, C. Santander, M. Sembroski, G. H. Shahinyan, K. Smith, A. W. Staszak, D. Telezhinsky, I. Tucci, J. V. Tyler, J. Vincent, S. Wakely, S. P. Weiner, O. M. Weinstein, A. Wilhelm, A. Williams, D. A. Zitzer, B. TI VERITAS and multiwavelength observations of the BL Lacertae object 1ES 1741+196 SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE astroparticle physics; relativistic processes; galaxies: individual: 1ES 1741+196=VER J1744+195 ID SPECTRAL ENERGY-DISTRIBUTIONS; GAMMA-RAY ASTRONOMY; X-RAY; LAC OBJECTS; SOURCE CATALOG; TEV BLAZARS; TELESCOPE; FERMI; DISCOVERY; SWIFT AB We present results from multiwavelength observations of the BL Lacertae object 1ES 1741 + 196, including results in the very high energy gamma-ray regime using the Very Energetic Radiation Imaging Telescope Array System (VERITAS). The VERITAS time-averaged spectrum, measured above 180 GeV, is well modelled by a power law with a spectral index of 2.7 +/- 0.7(stat) +/- 0.2(syst). The integral flux above 180 GeV is (3.9 +/- 0.8(stat) +/- 1.0(syst)) x 10(-8) m(-2) s(-1), corresponding to 1.6 per cent of the Crab nebula flux on average. The multiwavelength spectral energy distribution of the source suggests that 1ES 1741+196 is an extreme-high-frequency-peaked BL Lacertae object. The observations analysed in this paper extend over a period of six years, during which time no strong flares were observed in any band. This analysis is therefore one of the few characterizations of a blazar in a non-flaring state. C1 [Abeysekara, A. U.; Flinders, A.; Kar, P.; Kieda, D.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Archambault, S.; Griffin, S.; Hanna, D.; McCann, A.; Ragan, K.; Staszak, D.; Tyler, J.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Archer, A.; Buckley, J. H.; Bugaev, V.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. [Benbow, W.; Cerruti, M.; Fortin, P.; Pelassa, V.; Roache, E.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA. [Bird, R.; O'Brien, S.; Pueschel, E.; Quinn, J.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland. [Biteau, J.; Johnson, C. A.; Williams, D. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA. [Biteau, J.; Johnson, C. A.; Williams, D. A.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA. [Buchovecky, M.; Ong, R. A.; Popkow, A.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Byrum, K.; Zitzer, B.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Cardenzana, J. V.; Dickinson, H. J.; Eisch, J. D.; Krennrich, F.; Weinstein, A.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Chen, X.; Pohl, M.; Telezhinsky, I.; Wilhelm, A.] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany. [Chen, X.; Fleischhack, H.; Huetten, M.; Kelley-Hoskins, N.; Krause, M.; Maier, G.; de Bhroithe, A. O'Faolain; Pohl, M.; Telezhinsky, I.; Vincent, S.; Wilhelm, A.] DESY, Platanenallee 6, D-15738 Zeuthen, Germany. [Christiansen, J. L.; Reyes, L. C.; Reynolds, K.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 94307 USA. [Ciupik, L.; Grube, J.; Gyuk, G.; Ratliff, G.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA. [Connolly, M. P.; Gillanders, G. H.; Lang, M. J.; Moriarty, P.] Natl Univ Ireland Galway, Sch Phys, Univ Rd, Galway H91, Ireland. [Cui, W.; Feng, Q.; Finley, J. P.; McArthur, S.; Sembroski, G. H.; Tucci, J. V.] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA. [Dumm, J.; Fortson, L.; Rulten, C.; Shahinyan, K.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. [Errando, M.; Mukherjee, R.; Santander, M.] Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA. [Falcone, A.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. [Furniss, A.] Calif State Univ East Bay, Dept Phys, Hayward, CA 94542 USA. [Holder, J.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA. [Holder, J.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA. [Humensky, T. B.; Nieto, D.; Petrashyk, A.; Weiner, O. M.] Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA. [Kaaret, P.] Univ Iowa, Dept Phys & Astron, Van Allen Hall, Iowa City, IA 52242 USA. [Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA. [Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Sch Phys, 837 State St NW, Atlanta, GA 30332 USA. [Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Ctr Relativist Astrophys, 837 State St NW, Atlanta, GA 30332 USA. [Park, N.; Wakely, S. P.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Petry, D.] ESO, ALMA Reg Ctr, Karl Schwarzschild Str 2, D-85748 Garching, Germany. [Reynolds, P. T.] Cork Inst Technol, Dept Phys Sci, Cork T12, Ireland. [Smith, A. W.] Univ Maryland, NASA GSFC, College Pk, MD 20742 USA. RP Christiansen, JL (reprint author), Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 94307 USA. EM jlchrist@calpoly.edu; elisa.pueschel@ucd.ie OI Pueschel, Elisa/0000-0002-0529-1973; Krause, Maria/0000-0001-7595-0914 FU U.S. Department of Energy Office of Science; U.S. National Science Foundation; Smithsonian Institution; NSERC in Canada; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Marie Curie Intra-European Fellowship within 7th European Community 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, and by NSERC in Canada. This research used computational resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. EP acknowledges the support of a Marie Curie Intra-European Fellowship within the 7th European Community Framework Programme. 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. We are also grateful to Grant Williams and Daniel Kiminki for their dedication to the operation and support of the Super-LOTIS telescope. The VERITAS Collaboration is grateful to Trevor Weekes for his seminal contributions and leadership in the field of VHE gamma-ray astrophysics, which made this study possible. NR 47 TC 0 Z9 0 U1 3 U2 3 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0035-8711 EI 1365-2966 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD JUL 1 PY 2016 VL 459 IS 3 BP 2550 EP 2557 DI 10.1093/mnras/stw664 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DR3ZJ UT WOS:000379840900022 ER PT J AU Melville, S Schekochihin, AA Kunz, MW AF Melville, Scott Schekochihin, Alexander A. Kunz, Matthew W. TI Pressure-anisotropy-driven microturbulence and magnetic-field evolution in shearing, collisionless plasma SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE dynamo; magnetic fields; plasmas; turbulence; galaxies: clusters: intracluster medium ID PROTON TEMPERATURE ANISOTROPY; NONLINEAR MIRROR INSTABILITY; SCALE TURBULENT DYNAMO; GALAXY CLUSTERS; INTRACLUSTER MEDIUM; SOLAR-WIND; GYROTHERMAL INSTABILITIES; ASTROPHYSICAL PLASMAS; HEATING MECHANISM; KINETIC PHYSICS AB The non-linear state of a high-beta collisionless plasma is investigated where an imposed shear amplifies or diminishes a uniform mean magnetic field, driving pressure anisotropies and, therefore, firehose or mirror instabilities. To mimic the local behaviour of a macroscopic flow, the shear is switched off or reversed after one shear time, so a new macroscale configuration is superimposed on previous microscale state. A threshold plasma beta is found: when beta << Omega/S (ion cyclotron frequency/shear rate), the emergence/disappearance of firehose or mirror fluctuations is quasi-instantaneous compared to the shear time (lending some credence to popular closures that assume this). This follows from the free decay of these fluctuations being constrained by the same marginal-stability conditions as their growth in the unstable regime, giving the decay time similar to beta/Omega << S-1. In contrast, when beta greater than or similar to Omega/S, the old microscale state only disappears on the shear time-scale. In this ` ultra-high-beta' regime, driven firehose fluctuations grow secularly to order-unity amplitudes, compensating for the decrease of the mean field and thus pinning the pressure anisotropy at marginal stability without scattering particles - unlike what happens at moderate beta. After the shear reverses, the shearing away of these fluctuations compensates for the increase of the mean field and thus prevents growth of the pressure anisotropy, so the system stays close to the firehose threshold, does not go mirror-unstable, the total magnetic energy barely changing at all. Implications for various astrophysical situations, especially the origin of cosmic magnetism, are discussed: collisionless effects appear mostly beneficial to fast magnetic-field generation. C1 [Melville, Scott; Schekochihin, Alexander A.] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England. [Melville, Scott] Queens Coll, Oxford OX1 4AW, England. [Melville, Scott] Univ Vienna, Wolfgang Pauli Inst, A-1090 Vienna, Austria. [Melville, Scott] Harvard Univ, Cambridge, MA 02138 USA. [Schekochihin, Alexander A.] Univ Oxford Merton Coll, Oxford OX1 4JD, England. [Kunz, Matthew W.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Kunz, Matthew W.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Schekochihin, AA (reprint author), Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England.; Schekochihin, AA (reprint author), Univ Oxford Merton Coll, Oxford OX1 4JD, England. EM a.schekochihin1@physics.ox.ac.uk OI Melville, Scott/0000-0003-3516-856X FU Lyman Spitzer, Jr. Fellowship; Max-Planck-Princeton Center for Plasma Physics; Wolfgang Pauli Institute, Vienna FX We are grateful to S. C. Cowley for many important discussions, without which this work would not have been conceived. We also thank P. Catto, F. Parra, E. Quataert, F. Rincon, and A. Spitkovsky for valuable comments. MWK was supported by a Lyman Spitzer, Jr. Fellowship and by the Max-Planck-Princeton Center for Plasma Physics. He thanks Merton College, Oxford, for its support of his visits to Oxford. All three authors also thank the Wolfgang Pauli Institute, Vienna, for its hospitality and support. NR 65 TC 5 Z9 5 U1 1 U2 3 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0035-8711 EI 1365-2966 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD JUL 1 PY 2016 VL 459 IS 3 BP 2701 EP 2720 DI 10.1093/mnras/stw793 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DR3ZJ UT WOS:000379840900034 ER PT J AU Chang, C Pujol, A Gaztanaga, E Amara, A Refregier, A Bacon, D Becker, MR Bonnett, C Carretero, J Castander, FJ Crocce, M Fosalba, P Giannantonio, T Hartley, W Jarvis, M Kacprzak, T Ross, AJ Sheldon, E Troxel, MA Vikram, V Zuntz, J Abbott, TMC Abdalla, FB Allam, S Annis, J Benoit-Levy, A Bertin, E Brooks, D Buckley-Geer, E Burke, DL Capozzi, D Rosell, AC Kind, MC Cunha, CE D'Andrea, CB da Costa, LN Desai, S Diehl, HT Dietrich, JP Doel, P Eifler, TF Estrada, J Evrard, AE Flaugher, B Frieman, J Goldstein, DA Gruen, D Gruendl, RA Gutierrez, G Honscheid, K Jain, B James, DJ Kuehn, K Kuropatkin, N Lahav, O Li, TS Lima, M Marshall, JL Martini, P Melchior, P Miller, CJ Miquel, R Mohr, JJ Nichol, RC Nord, B Ogando, R Plazas, AA Reil, K Romer, AK Roodman, A Rykoff, ES Sanchez, E Scarpine, V Schubnell, M Sevilla-Noarbe, I Smith, RC Soares-Santos, M Sobreira, F Suchyta, E Swanson, MEC Tarle, G Thomas, D Walker, AR AF Chang, C. Pujol, A. Gaztanaga, E. Amara, A. Refregier, A. Bacon, D. Becker, M. R. Bonnett, C. Carretero, J. Castander, F. J. Crocce, M. Fosalba, P. Giannantonio, T. Hartley, W. Jarvis, M. Kacprzak, T. Ross, A. J. Sheldon, E. Troxel, M. A. Vikram, V. Zuntz, J. Abbott, T. M. C. Abdalla, F. B. Allam, S. Annis, J. Benoit-Levy, A. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D. L. Capozzi, D. Carnero Rosell, A. Carrasco Kind, M. Cunha, C. E. D'Andrea, C. B. da Costa, L. N. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Estrada, J. Evrard, A. E. Flaugher, B. Frieman, J. Goldstein, D. A. Gruen, D. Gruendl, R. A. Gutierrez, G. Honscheid, K. Jain, B. James, D. J. Kuehn, K. Kuropatkin, N. Lahav, O. Li, T. S. Lima, M. Marshall, J. L. Martini, P. Melchior, P. Miller, C. J. Miquel, R. Mohr, J. J. Nichol, R. C. Nord, B. Ogando, R. Plazas, A. A. Reil, K. Romer, A. K. Roodman, A. Rykoff, E. S. Sanchez, E. Scarpine, V. Schubnell, M. Sevilla-Noarbe, I. Smith, R. C. Soares-Santos, M. Sobreira, F. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. Walker, A. R. TI Galaxy bias from the Dark Energy Survey Science Verification data: combining galaxy density maps and weak lensing maps SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE gravitational lensing: weak; surveys; large-scale structure of Universe ID CHALLENGE LIGHTCONE SIMULATION; PHOTOMETRIC REDSHIFT PDFS; DIGITAL SKY SURVEY; SHEAR MEASUREMENT; HALO; LUMINOSITY; PARAMETER; MODEL; COLOR; INFORMATION AB We measure the redshift evolution of galaxy bias for a magnitude-limited galaxy sample by combining the galaxy density maps and weak lensing shear maps for a similar to 116 deg(2) area of the Dark Energy Survey (DES) Science Verification (SV) data. This method was first developed in Amara et al. and later re-examined in a companion paper with rigorous simulation tests and analytical treatment of tomographic measurements. In this work we apply this method to the DES SV data and measure the galaxy bias for a i < 22.5 galaxy sample. We find the galaxy bias and 1 sigma error bars in four photometric redshift bins to be 1.12 +/- 0.19 (z = 0.2-0.4), 0.97 +/- 0.15 (z = 0.4-0.6), 1.38 +/- 0.39 (z = 0.6-0.8), and 1.45 +/- 0.56 (z = 0.8-1.0). These measurements are consistent at the 2 sigma level with measurements on the same data set using galaxy clustering and cross-correlation of galaxies with cosmic microwave background lensing, with most of the redshift bins consistent within the 1 sigma error bars. In addition, our method provides the only sigma(8) independent constraint among the three. We forward model the main observational effects using mock galaxy catalogues by including shape noise, photo-z errors, and masking effects. We show that our bias measurement from the data is consistent with that expected from simulations. With the forthcoming full DES data set, we expect this method to provide additional constraints on the galaxy bias measurement from more traditional methods. Furthermore, in the process of our measurement, we build up a 3D mass map that allows further exploration of the dark matter distribution and its relation to galaxy evolution. C1 [Chang, C.; Amara, A.; Refregier, A.; Hartley, W.; Kacprzak, T.] Swiss Fed Inst Technol, Dept Phys, Wolfgang Pauli Str 16, CH-8093 Zurich, Switzerland. [Pujol, A.; Gaztanaga, E.; Carretero, J.; Castander, F. J.; Crocce, M.; Fosalba, P.] CSIC, IEEC, Inst Ciencies Espai, Fac Ciencies, Campus UAB,Torre C5 Par 2, E-08193 Barcelona, Spain. [Bacon, D.; Capozzi, D.; D'Andrea, C. B.; Nichol, R. C.; Thomas, D.] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England. [Becker, M. R.] Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA. [Becker, M. R.; Burke, D. L.; Cunha, C. E.; Gruen, D.; Roodman, A.; Rykoff, E. S.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA. [Bonnett, C.; Carretero, J.; Miquel, R.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain. [Giannantonio, T.] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England. [Giannantonio, T.] Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England. [Giannantonio, T.] Univ Cambridge, DAMTP, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England. [Jarvis, M.; Eifler, T. F.; Jain, B.; Suchyta, E.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Ross, A. J.; Honscheid, K.; Martini, P.] Ohio State Univ, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA. [Sheldon, E.] Brookhaven Natl Lab, Bldg 510, Upton, NY 11973 USA. [Troxel, M. A.; Zuntz, J.] Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England. [Vikram, V.] Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA. [Abbott, T. M. C.; James, D. J.; Smith, R. C.; Walker, A. R.] Cerro Tololo Interamer Observ, Natl Optic Astron Observ, Casilla 603, La Serena, Chile. [Abdalla, F. B.; Benoit-Levy, A.; Brooks, D.; Doel, P.; Lahav, O.] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England. [Abdalla, F. B.] Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Grahamstown, South Africa. [Allam, S.; Annis, J.; Buckley-Geer, E.; Diehl, H. T.; Estrada, J.; Flaugher, B.; Frieman, J.; Gutierrez, G.; Kuropatkin, N.; Nord, B.; Scarpine, V.; Soares-Santos, M.; Sobreira, F.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Benoit-Levy, A.; Bertin, E.] Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France. [Benoit-Levy, A.; Bertin, E.] Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France. [Burke, D. L.; Gruen, D.; Reil, K.; Roodman, A.; Rykoff, E. S.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Carnero Rosell, A.; da Costa, L. N.; Lima, M.; Ogando, R.; Sobreira, F.] Lab Interinst E Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil. [Carnero Rosell, A.; da Costa, L. N.; Ogando, R.] Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil. [Carrasco Kind, M.; Gruendl, R. A.; Sevilla-Noarbe, I.] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [Carrasco Kind, M.; Gruendl, R. A.; Swanson, M. E. C.] Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA. [D'Andrea, C. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England. [Desai, S.; Dietrich, J. P.; Gruen, D.; Mohr, J. J.] Univ Munich, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany. [Desai, S.; Dietrich, J. P.; Mohr, J. J.] Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany. [Eifler, T. F.; Plazas, A. A.] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA. [Evrard, A. E.; Miller, C. J.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA. [Evrard, A. E.; Miller, C. J.; Schubnell, M.; Tarle, G.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. [Frieman, J.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Goldstein, D. A.] Univ Calif Berkeley, Dept Astron, 501 Campbell Hall, Berkeley, CA 94720 USA. [Goldstein, D. A.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Gruen, D.; Mohr, J. J.] Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany. [Honscheid, K.; Martini, P.] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA. [Kuehn, K.] Australian Astron Observ, N Ryde, NSW 2113, Australia. [Li, T. S.; Marshall, J. L.] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA. [Li, T. S.; Marshall, J. L.] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA. [Lima, M.] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil. [Melchior, P.] Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA. [Miquel, R.] Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain. [Romer, A. K.] Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England. [Sanchez, E.; Sevilla-Noarbe, I.] Ctr Invest Energet Medioambientales & Tecnol CIEM, E-28040 Madrid, Spain. RP Chang, C (reprint author), Swiss Fed Inst Technol, Dept Phys, Wolfgang Pauli Str 16, CH-8093 Zurich, Switzerland. EM chihway.chang@phys.ethz.ch RI Lima, Marcos/E-8378-2010; Sobreira, Flavia/F-4168-2015; Ogando, Ricardo/A-1747-2010; Gaztanaga, Enrique/L-4894-2014; OI Sobreira, Flavia/0000-0002-7822-0658; Ogando, Ricardo/0000-0003-2120-1154; Gaztanaga, Enrique/0000-0001-9632-0815; Pujol, Arnau/0000-0001-7288-6435; Abdalla, Filipe/0000-0003-2063-4345 FU Swiss National Science Foundation [200021-149442, 200021-143906]; beca FI; Generalitat de Catalunya [2009-SGR-1398]; MICINN [AYA2012-39620]; European Research Council [240672]; US Department of Energy; US National Science Foundation; Ministry of Science and Education of Spain; Science and Technology Facilities Council of the United Kingdom; Higher Education Funding Council for England; National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign; Kavli Institute of Cosmological Physics at the University of Chicago; Center for Cosmology and Astro-Particle Physics at the Ohio State University; Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University; Financiadora de Estudos e Projetos; Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; Ministerio da Ciencia, Tecnologia e Inovacao; Deutsche Forschungsgemeinschaft; Collaborating Institutions in the Dark Energy Survey; Argonne National Laboratory; University of California at Santa Cruz; University of Cambridge; Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid; University of Chicago; University College London; DES-Brazil Consortium; University of Edinburgh; Eidgenossische Technische Hochschule (ETH) Zurich; Fermi National Accelerator Laboratory; University of Illinois at Urbana-Champaign; Institut de Ciencies de l'Espai (IEEC/CSIC); Institut de Fisica d'Altes Energies; Lawrence Berkeley National Laboratory; Ludwig-Maximilians Universitat Munchen and the associated Excellence Cluster Universe; University of Michigan; National Optical Astronomy Observatory; University of Nottingham; Ohio State University; University of Pennsylvania; University of Portsmouth; SLAC National Accelerator Laboratory; Stanford University; University of Sussex; Texas AM University; National Science Foundation [AST-1138766]; MINECO [AYA2012-39559, ESP2013-48274, FPA2013-47986]; Centro de Excelencia Severo Ochoa [SEV-2012-0234]; European Research Council under the European Union's Seventh Framework Programme (FP7); ERC [240672, 291329, 306478] FX We thank Marc Manera, Donnacha Kirk, Andrina Nicola, Sebastian Seehars for useful discussion and feedback. CC, AA, AR, and TK are supported by the Swiss National Science Foundation grants 200021-149442 and 200021-143906. AP was supported by beca FI and 2009-SGR-1398 from Generalitat de Catalunya and project AYA2012-39620 from MICINN. JZ and SB acknowledge support from the European Research Council in the form of a Starting Grant with number 240672.; Funding for the DES Projects has been provided by the US Department of Energy, the US National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and the Ministerio da Ciencia, Tecnologia e Inovacao, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey.; The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgenossische Technische Hochschule (ETH) Zurich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ciencies de l'Espai (IEEC/CSIC), the Institut de Fisica d'Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universitat Munchen and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, and Texas A&M University.; The DES data management system is supported by the National Science Foundation under Grant Number AST-1138766. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2013-47986, and Centro de Excelencia Severo Ochoa SEV-2012-0234. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. NR 55 TC 6 Z9 6 U1 1 U2 5 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0035-8711 EI 1365-2966 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD JUL 1 PY 2016 VL 459 IS 3 BP 3203 EP 3216 DI 10.1093/mnras/stw861 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DR3ZJ UT WOS:000379840900070 ER PT J AU Berman, D Deshmukh, SA Narayanan, B Sankaranarayanan, SKRS Yan, Z Balandin, AA Zinovev, A Rosenmann, D Sumant, AV AF Berman, Diana Deshmukh, Sanket A. Narayanan, Badri Sankaranarayanan, Subramanian K. R. S. Yan, Zhong Balandin, Alexander A. Zinovev, Alexander Rosenmann, Daniel Sumant, Anirudha V. TI Metal-induced rapid transformation of diamond into single and multilayer graphene on wafer scale SO NATURE COMMUNICATIONS LA English DT Article ID WALLED CARBON NANOTUBES; HEXAGONAL BORON-NITRIDE; EPITAXIAL GRAPHENE; MONOLAYER GRAPHENE; RAMAN-SPECTROSCOPY; DIRECT GROWTH; FILMS; ULTRANANOCRYSTALLINE; TRANSISTORS; CHEMISTRY AB The degradation of intrinsic properties of graphene during the transfer process constitutes a major challenge in graphene device fabrication, stimulating the need for direct growth of graphene on dielectric substrates. Previous attempts of metal-induced transformation of diamond and silicon carbide into graphene suffers from metal contamination and inability to scale graphene growth over large area. Here, we introduce a direct approach to transform polycrystalline diamond into high-quality graphene layers on wafer scale (4 inch in diameter) using a rapid thermal annealing process facilitated by a nickel, Ni thin film catalyst on top. We show that the process can be tuned to grow single or multilayer graphene with good electronic properties. Molecular dynamics simulations elucidate the mechanism of graphene growth on polycrystalline diamond. In addition, we demonstrate the lateral growth of free-standing graphene over micron-sized pre-fabricated holes, opening exciting opportunities for future graphene/diamond-based electronics. C1 [Berman, Diana; Deshmukh, Sanket A.; Narayanan, Badri; Sankaranarayanan, Subramanian K. R. S.; Rosenmann, Daniel; Sumant, Anirudha V.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. [Yan, Zhong; Balandin, Alexander A.] Univ Calif Riverside, Bourns Coll Engn, Dept Elect & Comp Engn, Mat Sci & Engn Program, Riverside, CA 92521 USA. [Zinovev, Alexander] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Sumant, AV (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM sumant@anl.gov 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 [DE-AC02-06CH11357, DE-AC02-05CH11231]; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division FX The help in the TEM data collection by Yuzi Liu is greatly appreciated. Use of the Center for Nanoscale Materials was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract no. DE-AC02-06CH11357. 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. This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the US Department of Energy under contract no. DE-AC02-06CH11357. XPS study was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. NR 43 TC 1 Z9 1 U1 52 U2 94 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD JUL PY 2016 VL 7 AR 12099 DI 10.1038/ncomms12099 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR4YW UT WOS:000379910700001 PM 27373740 ER PT J AU Qiu, B Zhang, MH Wu, LJ Wang, J Xia, YG Qian, DN Liu, HD Hy, S Chen, Y An, K Zhu, YM Liu, ZP Meng, YS AF Qiu, Bao Zhang, Minghao Wu, Lijun Wang, Jun Xia, Yonggao Qian, Danna Liu, Haodong Hy, Sunny Chen, Yan An, Ke Zhu, Yimei Liu, Zhaoping Meng, Ying Shirley TI Gas-solid interfacial modification of oxygen activity in layered oxide cathodes for lithium-ion batteries SO NATURE COMMUNICATIONS LA English DT Article ID POSITIVE ELECTRODE MATERIAL; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; HIGH-CAPACITY; MANGANESE OXIDES; SURFACE; PERFORMANCE; TRANSITION; MN; VACANCIES AB Lattice oxygen can play an intriguing role in electrochemical processes, not only maintaining structural stability, but also influencing electron and ion transport properties in high-capacity oxide cathode materials for Li-ion batteries. Here, we report the design of a gas-solid interface reaction to achieve delicate control of oxygen activity through uniformly creating oxygen vacancies without affecting structural integrity of Li-rich layered oxides. Theoretical calculations and experimental characterizations demonstrate that oxygen vacancies provide a favourable ionic diffusion environment in the bulk and significantly suppress gas release from the surface. The target material is achievable in delivering a discharge capacity as high as 301 mAhg(-1) with initial Coulombic efficiency of 93.2%. After 100 cycles, a reversible capacity of 300 mAhg(-1) still remains without any obvious decay in voltage. This study sheds light on the comprehensive design and control of oxygen activity in transition-metal-oxide systems for next-generation Li-ion batteries. C1 [Qiu, Bao; Xia, Yonggao; Liu, Zhaoping] Chinese Acad Sci, NIMTE, Ningbo 315201, Zhejiang, Peoples R China. [Zhang, Minghao; Qian, Danna; Liu, Haodong; Hy, Sunny; Meng, Ying Shirley] Univ Calif San Diego, Dept Nano Engn, La Jolla, CA 92093 USA. [Wu, Lijun; Zhu, Yimei] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. [Wang, Jun] Univ Munster, MEET Battery Res Ctr, Inst Phys Chem, Corrensstr 46, D-48149 Munster, Germany. [Chen, Yan; An, Ke] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37830 USA. RP Xia, YG; Liu, ZP (reprint author), Chinese Acad Sci, NIMTE, Ningbo 315201, Zhejiang, Peoples R China.; Meng, YS (reprint author), Univ Calif San Diego, Dept Nano Engn, La Jolla, CA 92093 USA. EM xiayg@nimte.ac.cn; liuzp@nimte.ac.cn; shirleymeng@ucsd.edu RI An, Ke/G-5226-2011; Chen, Yan/H-4913-2014 OI An, Ke/0000-0002-6093-429X; Chen, Yan/0000-0001-6095-1754 FU NIMTE from Strategic Priority Research Program of Chinese Academy of Sciences (CAS) [XDA09010101]; CAS [174433KYSB20150047]; Department of Energy, USA (CAS-DOE) [174433KYSB20150047]; Ningbo Science and Technology Innovation Team [2012B82001]; Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy (DOE) under the Advanced Battery Materials Research (BMR) Program [DE-AC02-05CH11231, 7073923]; U.S. DOE, Office of Basic Energy Science, Division of Materials Science and Engineering [DE-AC02-98CH10886]; office of Basic Energy Sciences (BES), the Office of Science of the U.S. DOE FX NIMTE is grateful for financial support from Strategic Priority Research Program of Chinese Academy of Sciences (CAS, Grant No. XDA09010101), Key Projects in Cooperation between CAS and Department of Energy, USA (CAS-DOE, Grant No. 174433KYSB20150047), and Ningbo Science and Technology Innovation Team (Grant No. 2012B82001). UC San Diego's efforts are supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy (DOE) under Contract No. DE-AC02-05CH11231, Subcontract No. 7073923, under the Advanced Battery Materials Research (BMR) Program. Work at Brookhaven National Laboratory is supported by the U.S. DOE, Office of Basic Energy Science, Division of Materials Science and Engineering, under Contract No. DE-AC02-98CH10886. The synchrotron XRD and XAS measurements were carried out at SSRF of the beamline BL14B1 and BL14W1, respectively. The neutron experiments benefit from the SNS user facilities (VULCAN beamline) sponsored by the office of Basic Energy Sciences (BES), the Office of Science of the U.S. DOE. We acknowledge Dr Ding-Yi Tong for the design of the schematic. NR 55 TC 16 Z9 16 U1 67 U2 111 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD JUL PY 2016 VL 7 AR 12108 DI 10.1038/ncomms12108 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR4ZA UT WOS:000379911200001 PM 27363944 ER PT J AU Toma, FM Cooper, JK Kunzelmann, V McDowell, MT Yu, J Larson, DM Borys, NJ Abelyan, C Beeman, JW Yu, KM Yang, JH Chen, L Shaner, MR Spurgeon, J Houle, FA Persson, KA Sharp, ID AF Toma, Francesca M. Cooper, Jason K. Kunzelmann, Viktoria McDowell, Matthew T. Yu, Jie Larson, David M. Borys, Nicholas J. Abelyan, Christine Beeman, Jeffrey W. Yu, Kin Man Yang, Jinhui Chen, Le Shaner, Matthew R. Spurgeon, Joshua Houle, Frances A. Persson, Kristin A. Sharp, Ian D. TI Mechanistic insights into chemical and photochemical transformations of bismuth vanadate photoanodes SO NATURE COMMUNICATIONS LA English DT Article ID DOPED BIVO4 PHOTOANODES; WATER-SPLITTING DEVICE; SOLAR-CELLS; OXIDATION; EFFICIENT; SEMICONDUCTORS; MICROSCOPY; CATALYST; PHOTOELECTRODES; ELECTRODES AB Artificial photosynthesis relies on the availability of semiconductors that are chemically stable and can efficiently capture solar energy. Although metal oxide semiconductors have been investigated for their promise to resist oxidative attack, materials in this class can suffer from chemical and photochemical instability. Here we present a methodology for evaluating corrosion mechanisms and apply it to bismuth vanadate, a state-of-the-art photoanode. Analysis of changing morphology and composition under solar water splitting conditions reveals chemical instabilities that are not predicted from thermodynamic considerations of stable solid oxide phases, as represented by the Pourbaix diagram for the system. Computational modelling indicates that photoexcited charge carriers accumulated at the surface destabilize the lattice, and that self-passivation by formation of a chemically stable surface phase is kinetically hindered. Although chemical stability of metal oxides cannot be assumed, insight into corrosion mechanisms aids development of protection strategies and discovery of semiconductors with improved stability. C1 [Toma, Francesca M.; Cooper, Jason K.; Kunzelmann, Viktoria; Yu, Jie; Larson, David M.; Abelyan, Christine; Beeman, Jeffrey W.; Yang, Jinhui; Chen, Le; Houle, Frances A.; Persson, Kristin A.; Sharp, Ian D.] Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynthesis, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Toma, Francesca M.; Cooper, Jason K.; Yu, Jie; Larson, David M.; Abelyan, Christine; Houle, Frances A.; Sharp, Ian D.] Lawrence Berkeley Natl Lab, Div Chem Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Kunzelmann, Viktoria] Tech Univ Munich, Walter Schottky Inst, Coulombwall 4, D-85748 Garching, Germany. [Kunzelmann, Viktoria] Tech Univ Munich, Dept Phys, Coulombwall 4, D-85748 Garching, Germany. [McDowell, Matthew T.; Shaner, Matthew R.; Spurgeon, Joshua] CALTECH, Joint Ctr Artificial Photosynthesis, 1200 Esat Calif Blvd, Pasadena, CA 91125 USA. [McDowell, Matthew T.; Shaner, Matthew R.; Spurgeon, Joshua] CALTECH, Div Chem & Chem Engn, 1200 Esat Calif Blvd, Pasadena, CA 91125 USA. [Borys, Nicholas J.] Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Borys, Nicholas J.; Beeman, Jeffrey W.; Yu, Kin Man; Yang, Jinhui; Chen, Le] Lawrence Berkeley Natl Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Persson, Kristin A.] Lawrence Berkeley Natl Lab, Energy Technol Area, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Persson, Kristin A.] Univ Calif Berkeley, Mat Sci & Engn, 210 Hearst Mem Min Bldg, Berkeley, CA 94720 USA. [McDowell, Matthew T.] Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. [McDowell, Matthew T.] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA. [Yu, Kin Man] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China. [Spurgeon, Joshua] Univ Louisville, Conn Ctr Renewable Energy Res, Louisville, KY 40292 USA. RP Toma, FM; Sharp, ID (reprint author), Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynthesis, 1 Cyclotron Rd, Berkeley, CA 94720 USA.; Toma, FM; Sharp, ID (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM fmtoma@lbl.gov; idsharp@lbl.gov OI Yu, Kin Man/0000-0003-1350-9642 FU Office of Science of the U.S. Department of Energy [DE-SC0004993]; Office of Science, 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]; BaCaTeC programme [2015-1] FX This study is based on work performed at 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. Imaging work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under contract number DE-AC02-05CH11231. The EC-AFM part of this work was supported in part by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under U.S. Department of Energy contract number DE-AC02-05CH11231. V.K. and F.M.T. acknowledge support from the BaCaTeC programme, project number 2015-1. Craig Jones from Agilent Technologies, Inc. is greatly acknowledged for his help with ICP-MS measurements. NR 47 TC 10 Z9 10 U1 49 U2 83 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD JUL PY 2016 VL 7 AR 12012 DI 10.1038/ncomms12012 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR6XT UT WOS:000380045300001 PM 27377305 ER PT J AU Zhou, JZ Deng, Y Shen, LN Wen, CQ Yan, QY Ning, DL Qin, YJ Xue, K Wu, LY He, ZL Voordeckers, JW Van Nostrand, JD Buzzard, V Michaletz, ST Enquist, BJ Weiser, MD Kaspari, M Waide, R Yang, YF Brown, JH AF Zhou, Jizhong Deng, Ye Shen, Lina Wen, Chongqing Yan, Qingyun Ning, Daliang Qin, Yujia Xue, Kai Wu, Liyou He, Zhili Voordeckers, James W. Van Nostrand, Joy D. Buzzard, Vanessa Michaletz, Sean T. Enquist, Brian J. Weiser, Michael D. Kaspari, Michael Waide, Robert Yang, Yunfeng Brown, James H. TI Temperature mediates continental-scale diversity of microbes in forest soils SO NATURE COMMUNICATIONS LA English DT Article ID COMMUNITY STRUCTURE; METABOLIC THEORY; CLIMATE-CHANGE; LATITUDINAL GRADIENTS; SPECIES-DIVERSITY; BIODIVERSITY; ECOSYSTEM; ECOLOGY; BIOGEOGRAPHY; SEQUENCES AB Climate warming is increasingly leading to marked changes in plant and animal biodiversity, but it remains unclear how temperatures affect microbial biodiversity, particularly in terrestrial soils. Here we show that, in accordance with metabolic theory of ecology, taxonomic and phylogenetic diversity of soil bacteria, fungi and nitrogen fixers are all better predicted by variation in environmental temperature than pH. However, the rates of diversity turnover across the global temperature gradients are substantially lower than those recorded for trees and animals, suggesting that the diversity of plant, animal and soil microbial communities show differential responses to climate change. To the best of our knowledge, this is the first study demonstrating that the diversity of different microbial groups has significantly lower rates of turnover across temperature gradients than other major taxa, which has important implications for assessing the effects of human-caused changes in climate, land use and other factors. C1 [Zhou, Jizhong; Yang, Yunfeng] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China. [Zhou, Jizhong; Deng, Ye; Shen, Lina; Wen, Chongqing; Yan, Qingyun; Ning, Daliang; Qin, Yujia; Xue, Kai; Wu, Liyou; He, Zhili; Voordeckers, James W.; Van Nostrand, Joy D.] Univ Oklahoma, Inst Environm Genom, Dept Microbiol & Plant Biol, Norman, OK 73019 USA. [Zhou, Jizhong; Deng, Ye; Shen, Lina; Wen, Chongqing; Yan, Qingyun; Ning, Daliang; Qin, Yujia; Xue, Kai; Wu, Liyou; He, Zhili; Voordeckers, James W.; Van Nostrand, Joy D.] Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA. [Zhou, Jizhong] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94270 USA. [Deng, Ye] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China. [Buzzard, Vanessa; Michaletz, Sean T.; Enquist, Brian J.] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA. [Enquist, Brian J.] Santa Fe Inst, 1399 Hyde Pk Rd, Santa Fe, NM 87501 USA. [Weiser, Michael D.; Kaspari, Michael] Univ Oklahoma, Dept Biol, EEB Grad Program, Norman, OK 73019 USA. [Kaspari, Michael] Smithsonian Trop Res Inst, Balboa 084303092, Panama. [Waide, Robert; Brown, James H.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. RP Zhou, JZ (reprint author), Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China.; Zhou, JZ; Deng, Y (reprint author), Univ Oklahoma, Inst Environm Genom, Dept Microbiol & Plant Biol, Norman, OK 73019 USA.; Zhou, JZ; Deng, Y (reprint author), Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA.; Zhou, JZ (reprint author), Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94270 USA.; Deng, Y (reprint author), Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China. EM jzhou@ou.edu; yedeng@rcees.ac.cn OI ?, ?/0000-0002-7584-0632 FU U.S. National Science Foundation MacroSystems Biology program [NSF EF-1065844]; Office of the Vice President for Research at the University of Oklahoma; Collaborative Innovation Center for Regional Environmental Quality at the Tsinghua University; National Science Foundation of China [41430856]; National Natural Science Foundation of China [31540071]; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) [XDB15010302]; CAS 100 talent program FX This study was supported by the U.S. National Science Foundation MacroSystems Biology program under the contract (NSF EF-1065844), by the Office of the Vice President for Research at the University of Oklahoma, by the Collaborative Innovation Center for Regional Environmental Quality at the Tsinghua University and the National Science Foundation of China (41430856). Y.D. was also supported by the National Natural Science Foundation of China (grant no. 31540071), Strategic Priority Research Program of the Chinese Academy of Sciences (CAS; grant XDB15010302) and CAS 100 talent program. NR 68 TC 4 Z9 4 U1 55 U2 97 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD JUL PY 2016 VL 7 AR 12083 DI 10.1038/ncomms12083 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR6YE UT WOS:000380046400001 PM 27377774 ER PT J AU Oliver, JB Smith, C Spaulding, J Rigatti, AL Charles, B Papernov, S Taylor, B Foster, J Carr, CW Luthi, R Hollingsworth, B Cross, D AF Oliver, J. B. Smith, C. Spaulding, J. Rigatti, A. L. Charles, B. Papernov, S. Taylor, B. Foster, J. Carr, C. W. Luthi, R. Hollingsworth, B. Cross, D. TI Glancing-angle-deposited magnesium oxide films for high-fluence applications SO OPTICAL MATERIALS EXPRESS LA English DT Article ID LASER-INDUCED DAMAGE; THIN-FILMS; SERIAL BIDEPOSITION; OPTICAL-PROPERTIES; REFRACTIVE-INDEX; MGO FILMS; COATINGS; BIREFRINGENCE AB Birefringent magnesium oxide thin films are formed by glancing-angle deposition to perform as quarter-wave plates at a wavelength of 351 nm. These films are being developed to fabricate a large-aperture distributed-polarization rotator for use in vacuum, with an ultimate laser-damage-threshold goal of up to 12 J/cm(2) for a 5-ns flat-in-time pulse. The laser-damage threshold, ease of deposition, and optical film properties are evaluated. While the measured large-area laser-damage threshold is limited to similar to 4 J/cm(2) in vacuum, initial results based on small-spot testing in air (> 20 J/cm(2)) suggest MgO may be suitable with further process development. (C) 2016 Optical Society of America C1 [Oliver, J. B.; Smith, C.; Spaulding, J.; Rigatti, A. L.; Charles, B.; Papernov, S.; Taylor, B.; Foster, J.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA. [Carr, C. W.; Luthi, R.; Hollingsworth, B.; Cross, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Oliver, JB (reprint author), Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA. EM joli@lle.rochester.edu FU Department of Energy National Nuclear Security Administration [DE-NA0001944]; University of Rochester; New York State Energy Research and Development Authority; DOE FX This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0001944, the University of Rochester, and the New York State Energy Research and Development Authority. The support of DOE does not constitute an endorsement by DOE of the views expressed in this article. NR 40 TC 0 Z9 0 U1 4 U2 4 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 2159-3930 J9 OPT MATER EXPRESS JI Opt. Mater. Express PD JUL 1 PY 2016 VL 6 IS 7 BP 2291 EP 2303 DI 10.1364/OME.6.002291 PG 13 WC Materials Science, Multidisciplinary; Optics SC Materials Science; Optics GA DR2OE UT WOS:000379743000017 ER PT J AU Liz-Marzan, L Bals, S AF Liz-Marzan, Luis Bals, Sara TI Advanced Particle Characterization Techniques SO PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION LA English DT Editorial Material C1 [Liz-Marzan, Luis] Univ Utrecht, NL-3508 TC Utrecht, Netherlands. [Liz-Marzan, Luis] Univ Vigo, Vigo, Spain. [Liz-Marzan, Luis] CIC Bioma GUNE, San Sebastian, Spain. [Bals, Sara] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA USA. [Bals, Sara] Univ Antwerp, Electron Microscopy Mat Res EMAT Grp, Antwerp, Belgium. RP Liz-Marzan, L (reprint author), Univ Utrecht, NL-3508 TC Utrecht, Netherlands.; Liz-Marzan, L (reprint author), CIC Bioma GUNE, San Sebastian, Spain. NR 0 TC 0 Z9 0 U1 11 U2 11 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0934-0866 EI 1521-4117 J9 PART PART SYST CHAR JI Part. Part. Syst. Charact. PD JUL PY 2016 VL 33 IS 7 SI SI BP 350 EP 351 DI 10.1002/ppsc.201600137 PG 2 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DR5VH UT WOS:000379970000001 ER PT J AU Gao, F Szanyi, J Wang, YL Schwenzer, B Kollar, M Peden, CHF AF Gao, Feng Szanyi, Janos Wang, Yilin Schwenzer, Birgit Kollar, Marton Peden, Charles H. F. TI Hydrothermal Aging Effects on Fe/SSZ-13 and Fe/Beta NH3-SCR Catalysts SO TOPICS IN CATALYSIS LA English DT Article; Proceedings Paper CT 10th Congress on Catalysis and Automotive Pollution Control (CAPoC) CY OCT 28-30, 2015 CL Univ Libre Bruxelles, Brussels, BELGIUM HO Univ Libre Bruxelles DE SCR; Fe/beta; Fe/SSZ-13; Zeolite catalyst; Emission control ID REACTION-KINETICS; NOX; REDUCTION; AMMONIA; SCR AB Fe/SSZ-13 and Fe/beta catalysts with similar Fe loading and Si/Al ratios were prepared via solution ion-exchange under N-2. These catalysts, in both freshly prepared and hydrothermally aged forms, were characterized with temperature-programmed reduction/desorption and a few spectroscopic methods to elucidate changes to Fe species and zeolite acidity during hydrothermal aging. The catalytic properties were further studied using standard/fast SCR and NO/NH3 oxidation reactions. For both catalysts, aging causes Fe-ion clustering and Al-Fe interactions. A clear correlation is found between standard NH3-SCR and NO oxidation activities indicating that higher NO oxidation rates enable fast SCR even under standard SCR conditions. For fast SCR, higher pore opening and lower acidity in beta zeolite-based catalysts mitigate NH4NO3 deposition. C1 [Gao, Feng; Szanyi, Janos; Wang, Yilin; Schwenzer, Birgit; Kollar, Marton; Peden, Charles H. F.] Pacific Northwest Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA. RP Gao, F (reprint author), Pacific Northwest Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA. EM feng.gao@pnnl.gov NR 15 TC 0 Z9 0 U1 23 U2 34 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1022-5528 EI 1572-9028 J9 TOP CATAL JI Top. Catal. PD JUL PY 2016 VL 59 IS 10-12 BP 882 EP 886 DI 10.1007/s11244-016-0563-5 PG 5 WC Chemistry, Applied; Chemistry, Physical SC Chemistry GA DR3VI UT WOS:000379830300008 ER PT J AU Ruggeri, MP Selleri, T Nova, I Tronconi, E Pihl, JA Toops, TJ Partridge, WP AF Ruggeri, M. P. Selleri, T. Nova, I. Tronconi, E. Pihl, J. A. Toops, T. J. Partridge, W. P. TI New Mechanistic Insights in the NH3-SCR Reactions at Low Temperature SO TOPICS IN CATALYSIS LA English DT Article; Proceedings Paper CT 10th Congress on Catalysis and Automotive Pollution Control (CAPoC) CY OCT 28-30, 2015 CL Univ Libre Bruxelles, Brussels, BELGIUM HO Univ Libre Bruxelles DE Low temperature SCR; Cu zeolite; Fe zeolite; SCR mechanism; In situ DRIFTS; Chemical trapping ID SELECTIVE CATALYTIC-REDUCTION; NO OXIDATION; SITU-DRIFTS; ZEOLITE CATALYSTS; CU-ZEOLITE; NH3; SCR; IDENTIFICATION AB The present study is focused on the investigation of the low temperature Standard SCR reaction mechanism over Fe- and Cu-promoted zeolites. Different techniques are employed, including in situ DRIFTS, transient reaction analysis and chemical trapping techniques. The results present strong evidence of nitrite formation in the oxidative activation of NO and of their role in SCR reactions. These elements lead to a deeper understanding of the standard SCR chemistry at low temperature and can potentially improve the consistency of mechanistic mathematical models. Moreover, comprehension of the mechanism on a fundamental level can contribute to the development of improved SCR catalysts. C1 [Ruggeri, M. P.; Selleri, T.; Nova, I.; Tronconi, E.] Politecn Milan, Dipartimento Energia, Lab Catalysis & Catalyt Proc, Via La Masa 34, I-20156 Milan, Italy. [Pihl, J. A.; Toops, T. J.; Partridge, W. P.] Oak Ridge Natl Lab, Fuels Engines & Emission Res Ctr, Oak Ridge, TN 37831 USA. RP Tronconi, E (reprint author), Politecn Milan, Dipartimento Energia, Lab Catalysis & Catalyt Proc, Via La Masa 34, I-20156 Milan, Italy. EM enrico.tronconi@polimi.it NR 13 TC 1 Z9 1 U1 14 U2 26 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1022-5528 EI 1572-9028 J9 TOP CATAL JI Top. Catal. PD JUL PY 2016 VL 59 IS 10-12 BP 907 EP 912 DI 10.1007/s11244-016-0567-1 PG 6 WC Chemistry, Applied; Chemistry, Physical SC Chemistry GA DR3VI UT WOS:000379830300012 ER PT J AU Balog, ERM Ghosh, K Park, YI Hartung, V Sista, P Rocha, RC Wang, HL Martinez, JS AF Balog, Eva Rose M. Ghosh, Koushik Park, Young-Il Hartung, Vaughn Sista, Prakash Rocha, Reginaldo C. Wang, Hsing-Lin Martinez, Jennifer S. TI Stimuli-Responsive Genetically Engineered Polymer Hydrogel Demonstrates Emergent Optical Responses SO ACS BIOMATERIALS SCIENCE & ENGINEERING LA English DT Article DE conjugated oligomer; composite material; optically active material; photoluminescence; polymeric material; stimuli-responsive material; genetically encoded ID BLOCK-COPOLYMERS; IN-SITU; ELASTIN AB Biopolymer-based optical hydrogels represent an emerging class of materials with potential applications in biocompatible integrated optoelectronic devices, bioimaging applications, and stretchable/flexible photonics. We have synthesized stimuli-responsive three-dimensional hydrogels from genetically engineered elastin-like polymers (ELPs) and have loaded these hydrogels with an amine-containing p-phenylenevinylene oligomer (OPPV) derivative featuring highly tunable, environmentally sensitive optical properties. The composite ELP/OPPV hydrogels exhibit both pH- and temperature-dependent fluorescence emission, from which we have characterized a unique optical behavior that emerged from OPPV within the hydrogel environment. By systematic comparison with free OPPV in solution, our results suggest that this distinct behavior is due to local electronic effects arising from interactions between the hydrophobic ELP microenvironment and the nonprotonated OPPV species at pH 7 or higher. C1 [Balog, Eva Rose M.; Ghosh, Koushik; Rocha, Reginaldo C.; Martinez, Jennifer S.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Wang, Hsing-Lin] Los Alamos Natl Lab, Div Chem, C PCS, Los Alamos, NM 87545 USA. [Hartung, Vaughn] Los Alamos Natl Lab, Mat Sci & Technol Div, MST 7, Los Alamos, NM 87545 USA. [Martinez, Jennifer S.] Los Alamos Natl Lab, Inst Mat Sci, Los Alamos, NM 87545 USA. [Balog, Eva Rose M.] Univ New England, Dept Chem & Phys, Biddeford, ME 04005 USA. [Ghosh, Koushik] Eastman Chem, Kingsport, TN 37660 USA. [Park, Young-Il] Korean Res Inst Chem Technol, Res Ctr Green Fine Chem, Ulsan 681802, South Korea. [Sista, Prakash] SABIC Innovat Plast, Mt Vernon, IN 47620 USA. RP Martinez, JS (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. EM jenm@lanl.gov RI Balog, Eva Rose/P-7661-2014 OI Balog, Eva Rose/0000-0001-6792-6914 FU Laboratory Directed Research and Development (LDRD); Basic Energy Science, Biomolecular Materials Program, Division of Materials Science Engineering; National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396] FX The authors acknowledge financial support by the Laboratory Directed Research and Development (LDRD) program for synthesis of conjugated oligomers and hydrogels (E. R. M. B., K. G., P. S., R. C. R). Photophysical and rheological characterization of ELP/OPPV hydrogels was supported by the Basic Energy Science, Biomolecular Materials Program, Division of Materials Science & Engineering (H.-L. W., J. S. M., and Y.-I. P.). This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Los Alamos National Laboratory, an affirmative action equal opportunity employer, 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 32 TC 1 Z9 1 U1 10 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2373-9878 J9 ACS BIOMATER SCI ENG JI ACS Biomater. Sci. Eng. PD JUL PY 2016 VL 2 IS 7 BP 1135 EP 1142 DI 10.1021/acsbiomaterials.6b00137 PG 8 WC Materials Science, Biomaterials SC Materials Science GA DR1AL UT WOS:000379638200007 ER PT J AU Xie, JH Huang, B Yin, KH Pham, HN Unocic, RR Datye, AK Davis, RJ AF Xie, Jiahan Huang, Benjamin Yin, Kehua Pham, Hien N. Unocic, Raymond R. Datye, Abhaya K. Davis, Robert J. TI Influence of Dioxygen on the Promotional Effect of Bi during Pt-Catalyzed Oxidation of 1,6-Hexanediol SO ACS CATALYSIS LA English DT Article DE Pt; Bi; heterogeneous catalysts; alcohol oxidation; catalyst restructuring; promotional effect; dioxygen pressure; isotope effect ID IRREVERSIBLY ADSORBED ADATOMS; SUPPORTED PLATINUM CATALYSTS; SELECTIVE AEROBIC OXIDATION; FORMIC-ACID OXIDATION; METAL-CATALYSTS; 2,5-FURANDICARBOXYLIC ACID; NANOPARTICLE CATALYSTS; FUEL-CELLS; HETEROGENEOUS ELECTROCATALYSIS; BIMETALLIC CATALYSTS AB A series of carbon-supported, Bi-promoted Pt catalysts with various Bi/Pt atomic ratios was prepared by selectively depositing Bi on Pt nanoparticles. The catalysts were evaluated for 1,6-hexanediol oxidation activity in aqueous solvent under different dioxygen pressures. The rate of diol oxidation on the basis of Pt loading over a Bi-promoted catalyst was 3 times faster than that of an unpromoted Pt catalyst under 0.02 MPa of O-2, whereas the unpromoted catalyst was more active than the promoted catalyst under 1 MPa of O-2. After liquid-phase catalyst pretreatment and 1,6-hexanediol oxidation, migration of Bi on the carbon support was observed. The reaction order in O-2 was 0 over Bi-promoted Pt/C in comparison to 0.75 over unpromoted Pt/C in the range of 0.02-0.2 MPa of O-2. Under low O-2 pressure, rate measurements in D2O instead of H2O solvent revealed a moderate kinetic isotope effect (rate(H2O)/rate(D2O)) on 1,6-hexanediol oxidation over Pt/C (KIE = 1.4), whereas a negligible effect was observed on Bi-Pt/C (KIE = 0.9), indicating that the promotional effect of Bi could be related to the formation of surface hydroxyl groups from the reaction of dioxygen and water. No significant change in product distribution or catalyst stability was observed with Bi promotion, regardless of the dioxygen pressure. C1 [Xie, Jiahan; Huang, Benjamin; Yin, Kehua; Davis, Robert J.] Univ Virginia, Dept Chem Engn, 102 Engn Way,POB 400741, Charlottesville, VA 22904 USA. [Pham, Hien N.; Datye, Abhaya K.] Univ New Mexico, Dept Chem Engn, Albuquerque, NM 87131 USA. [Pham, Hien N.; Datye, Abhaya K.] Univ New Mexico, Ctr Microengn Mat, Albuquerque, NM 87131 USA. [Unocic, Raymond R.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Davis, RJ (reprint author), Univ Virginia, Dept Chem Engn, 102 Engn Way,POB 400741, Charlottesville, VA 22904 USA. EM rjd4f@virginia.edu RI Yin, Kehua/B-8353-2017; Xie, Jiahan/D-2020-2017 OI Yin, Kehua/0000-0003-2391-5329; Xie, Jiahan/0000-0003-1754-9844 FU National Science Foundation [EEC-0813570]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]; Synchrotron Catalysis Consortium, U.S. Department of Energy [DE-FG02-05ER15688] FX This material was based upon the work supported by the National Science Foundation under award number EEC-0813570. Use of the National Synchrotron Light Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. Beamline X18B at the NSLS is supported in part by the Synchrotron Catalysis Consortium, U.S. Department of Energy Grant No. DE-FG02-05ER15688. A portion of microscopy research was conducted at the Center for Nanophase Materials Sciences at Oak Ridge National Laboratory, which is a DOE Office of Science User Facility. The authors acknowledge Dr. Dmitry Pestov and Professor Eric Carpenter in the Nanomaterials Characterization Center at Virginia Commonwealth University (for use of the XPS), Dr. Helge Heinrich in the Nanoscale Materials Characterization Facility at the University of Virginia, and the NSLS X-18B beamline personnel, Dr. Nebojsa Marinkovic and Dr. Syed Khalid. Helpful discussions with Zachary Young and Professor Matthew Neurock are also acknowledged. NR 68 TC 0 Z9 0 U1 9 U2 21 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD JUL PY 2016 VL 6 IS 7 BP 4206 EP 4217 DI 10.1021/acscatal.6b00972 PG 12 WC Chemistry, Physical SC Chemistry GA DQ8JO UT WOS:000379457300020 ER PT J AU Yuan, KD Zhong, JQ Zhou, X Xu, LL Bergman, SL Wu, K Xu, GQ Bernasek, SL Li, HX Chen, W AF Yuan, Kaidi Zhong, Jian-Qiang Zhou, Xiong Xu, Leilei Bergman, Susanna L. Wu, Kai Xu, Guo Qin Bernasek, Steven L. Li, He Xing Chen, Wei TI Dynamic Oxygen on Surface: Catalytic Intermediate and Coking Barrier in the Modeled CO2 Reforming of CH4 on Ni (111) SO ACS CATALYSIS LA English DT Article DE NAP-XPS; surface oxygen; dry reforming; coking; methane; carbon dioxide; nickel ID RAY PHOTOELECTRON-SPECTROSCOPY; SCANNING-TUNNELING-MICROSCOPY; ORDER-DISORDER TRANSITION; DENSITY-FUNCTIONAL THEORY; CARBON-DIOXIDE; IN-SITU; AMBIENT-PRESSURE; NI(111) SURFACES; CHEMISORBED OXYGEN; OXIDATION REACTION AB We identify Ni-O phases as important intermediates in a modeled dry (CO2) reforming of methane catalyzed by Ni (111), based on results from in operando near ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) experiments, corroborated by low energy electron diffraction (LEED) and scanning tunneling microscopy (STM) measurements. We find that, under a CO2 or CO2-CH4 atmosphere, the Ni-O phases exist in the forms of p(2 X 2)-structured chemisorbed oxygen (Chem-O), epitaxial NiO (111), or oxygen-rich NixOy (x < y, typically Ni2O3), depending on the chemical potential. The growth rates of the Ni-O phases have a negative correlation with temperature from 600 to 900 K, proving that their dynamic concentrations in the reaction are not limited by CO2 activation, but by their thermal stability. Between 300 and 800 K (1:1 CH4 and CO, mixture), oxidation by CO, is dominant, resulting in a fully Ni-O covered surface. Between 800 and 900 K, a partially oxidized Ni (111) exists which could greatly facilitate the effective conversion of CH4. As CH4 is activation-limited and dissociates mainly on metallic nickel, the released carbon species can quickly react with the adjacent oxygen (Ni-O phases) to form CO. After combining with carbon and releasing CO molecules, the Ni-O phases can be further regenerated through oxidation by CO. In this way, the Ni-O phases participate in the catalytic process, acting as an intermediate in addition to the previously reported Ni-C phases. We also reveal the carbon phobic property of the Ni-O phases, which links to the intrinsic coking resistance of the catalysts. The low dynamic coverage of surface oxygen at higher temperatures (>900 K) is inferred to be an underlying factor causing carbon aggregation. Therefore, solutions based on Ni-O stabilization are proposed in developing coking resisting catalysts. C1 [Yuan, Kaidi; Chen, Wei] Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore. [Yuan, Kaidi; Zhong, Jian-Qiang; Zhou, Xiong; Xu, Leilei; Wu, Kai; Xu, Guo Qin; Chen, Wei] Singapore Peking Univ, Res Ctr Sustainable Low Carbon Future, 1 CREATE Way,15-01,CREATE Tower, Singapore 138602, Singapore. [Zhou, Xiong; Xu, Guo Qin; Chen, Wei] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore. [Wu, Kai] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. [Bergman, Susanna L.; Bernasek, Steven L.] Yale NUS Coll, Sci Div, 16 Coll Ave West, Singapore 138527, Singapore. [Bergman, Susanna L.; Bernasek, Steven L.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. [Chen, Wei] Natl Univ Singapore Suzhou, Res Inst, 377 Linquan St,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China. [Zhong, Jian-Qiang] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Li, He Xing] Shanghai Normal Univ, Chinese Educ Minist, Key Lab Resource Chem, Shanghai 200234, Peoples R China. RP Chen, W (reprint author), Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore.; Chen, W (reprint author), Singapore Peking Univ, Res Ctr Sustainable Low Carbon Future, 1 CREATE Way,15-01,CREATE Tower, Singapore 138602, Singapore.; Chen, W (reprint author), Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore.; Chen, W (reprint author), Natl Univ Singapore Suzhou, Res Inst, 377 Linquan St,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China. EM phycw@nus.edu.sg RI Wu, Kai/A-4903-2011; CHEN, Wei/F-4658-2010 OI Wu, Kai/0000-0002-5016-0251; CHEN, Wei/0000-0002-1131-3585 FU Singapore MOE [R143-000-542-112]; Singapore National Research Foundation CREATE-SPURc program [R-143-001-205-592]; NFSC program [21573156]; Academia -Industry Collaborative Innovation Foundation from Jiangsu Science and Technology Department [20121G00421, BY2014139] FX The authors acknowledge the financial support from Singapore MOE grant R143-000-542-112, Singapore National Research Foundation CREATE-SPURc program R-143-001-205-592, NFSC program (21573156), and Academia -Industry Collaborative Innovation Foundation 20121G00421 and BY2014139 from Jiangsu Science and Technology Department. NR 87 TC 4 Z9 4 U1 37 U2 56 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD JUL PY 2016 VL 6 IS 7 BP 4330 EP 4339 DI 10.1021/acscatal.6b00357 PG 10 WC Chemistry, Physical SC Chemistry GA DQ8JO UT WOS:000379457300033 ER PT J AU Robinson, A Ferguson, GA Gallagher, JR Cheah, S Beckham, GT Schaidle, JA Hensley, JE Medlin, JW AF Robinson, Allison Ferguson, Glen Allen Gallagher, James R. Cheah, Singfoong Beckham, Gregg T. Schaidle, Joshua A. Hensley, Jesse E. Medlin, J. Will TI Enhanced Hydrodeoxygenation of m-Cresol over Bimetallic Pt-Mo Catalysts through an Oxophilic Metal-Induced Tautomerization Pathway SO ACS CATALYSIS LA English DT Article DE platinum; molybdenum; bimetallic; biomass; hydrodeoxygenation; oxophilic promoter; catalytic fast pyrolysis ID RAY-ABSORPTION SPECTROSCOPY; PLATINUM-RHENIUM CATALYSTS; CARBON-SUPPORTED PLATINUM; AQUEOUS-PHASE; SYNTHESIS GAS; FE CATALYSTS; BIO-OILS; IN-SITU; SURFACE; GLYCEROL AB Supported bimetallic catalysts consisting of a noble metal (e.g., Pt) and an oxophilic metal (e.g., Mo) have received considerable attention for the hydrodeoxygenation of oxygenated aromatic compounds produced from biomass fast pyrolysis. Here, we report that PtMo can catalyze m-cresol deoxygenation via a pathway involving an initial tautomerization step. In contrast, the dominant mechanism on monometallic Pt/Al2O3 was found to be sequential Pt-catalyzed ring hydrogenation followed by dehydration on the support. Bimetallic Pt10Mo1 and Pt1Mo1 catalysts were found to produce the completely hydrogenated and deoxygenated product, methylcyclohexane (MCH), with much higher yields than monometallic Pt catalysts with comparable metal loadings and surface areas. Over an inert carbon support, MCH formation was found to be slow over monometallic Pt catalysts, while deoxygenation was significant for PtMo catalysts even in the absence of an acidic support material. Experimental studies of m-cresol deoxygenation together with density functional theory calculations indicated that Mo sites on the PtMo bimetallic surface dramatically lower the barrier for m-cresol tautomerization and subsequent deoxygenation. The accessibility of this pathway arises from the increased interaction between the oxygen of m-cresol and the Mo sites in the Pt surface. This interaction significantly alters the configuration of the precursor and transition states for tautomerization. A suite of catalyst characterization techniques including X-ray absorption spectroscopy (XAS) and temperature-programmed reduction (TPR) indicate that Mo was present in a reduced state on the bimetallic surface under conditions relevant for reaction. Overall, these results suggest that the use of bifunctional metal catalysts can result in new reaction pathways that are unfavorable on monometallic noble metal catalysts. C1 [Robinson, Allison; Medlin, J. Will] Univ Colorado, Chem & Biol Engn Dept, Boulder, CO 80303 USA. [Ferguson, Glen Allen; Cheah, Singfoong; Beckham, Gregg T.; Schaidle, Joshua A.; Hensley, Jesse E.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Gallagher, James R.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Medlin, JW (reprint author), Univ Colorado, Chem & Biol Engn Dept, Boulder, CO 80303 USA.; Schaidle, JA (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. EM joshua.schaidle@nrel.gov; will.medlin@colorado.edu FU Department of Energy BioEnergy Technologies Office [DE-AC36-08-GO28308]; Texas Advanced Computing Center under the National Science Foundation Extreme Science and Engineering Discovery Environment [MCB-090159]; National Science Foundation [CHE-1149752]; Department of Education Graduate Assistantships in Areas of National Need (GAANN); DOE Office of Science [DE-AC02-06CH11357] FX This work was supported by the Department of Energy BioEnergy Technologies Office under Contract no. DE-AC36-08-GO28308. Computer time was provided by the Texas Advanced Computing Center under the National Science Foundation Extreme Science and Engineering Discovery Environment Grant MCB-090159 and by the National Renewable Energy Laboratory Computational Sciences Center. A.M.R acknowledges support from the National Science Foundation for funding this research (Award CHE-1149752) and partial support from the Department of Education Graduate Assistantships in Areas of National Need (GAANN). The authors gratefully acknowledge Dr. Susan Habas for TEM imaging. X-ray absorbance spectroscopy experiments were conducted at the Sector 10 beamline, which is operated by the Materials Research Collaborative Access Team. This research used resources of the Advanced Photon Source, a DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We gratefully acknowledge Dr. Jeffrey T. Miller (Purdue University) for his help and insight related to XAS data analysis. We also thank Dr. Vassili Vorotnikov for insightful discussions concerning the reaction pathways. NR 91 TC 6 Z9 6 U1 26 U2 43 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD JUL PY 2016 VL 6 IS 7 BP 4356 EP 4368 DI 10.1021/acscatal.6b01131 PG 13 WC Chemistry, Physical SC Chemistry GA DQ8JO UT WOS:000379457300036 ER PT J AU Plata, JJ Graciani, J Evans, J Rodriguez, JA Sanz, JF AF Plata, Jose J. Graciani, Jesus Evans, Jaime Rodriguez, Jose A. Fernandez Sanz, Javier TI Cu Deposited on CeOx-Modified TiO2(110): Synergistic Effects at the Metal-Oxide Interface and the Mechanism of the WGS Reaction SO ACS CATALYSIS LA English DT Article DE water gas shift reaction; DFT; carboxyl; ceria; titania; copper; metallic clusters ID GAS SHIFT REACTION; DENSITY-FUNCTIONAL THEORY; AUTOMOTIVE POLLUTION-CONTROL; LOW-INDEX SURFACES; ELECTRONIC-STRUCTURE; SUPPORT INTERACTIONS; HYDROGEN-PRODUCTION; WATER DISSOCIATION; CATALYTIC-ACTIVITY; OXYGEN VACANCIES AB Experimental techniques and DFT calculations have been combined to study and compare the effect of the metal-substrate interaction in Cu/TiO2(110) and Cu/CeOx/TiO2(110) catalysts for the water-gas shift (WGS) reaction. Experiments and theory show that CeOx nanoparticles affect the dispersion of copper on titania, and on the formed copper-ceria interface, there are synergistic effects which favor water dissociation and the WGS reaction. The minimum energy path for the WGS reaction on the new highly active catalytic system Cu/CeOx/TiO2(110) has been predicted by theoretical calculations. Main steps such as adsorption-dissociation of water and *OCOH carboxyl intermediate formation-deprotonation have been characterized. In this very particular system, water splitting is no longer the rate-limiting step because it can dissociate overcoming an energy barrier of only 0.92 kcal/mol. One important insight of the present work is to show that easy full hydration of the ceria particles strongly lowers the reaction barrier for the deprotonation of the *OCOH intermediate and facilitates the evolution of the WGS reaction. For the first time, a system has been found on which the WGS reaction is able to work with all the involved energy barriers below 12 kcal/mol. This remarkable behavior makes the metal/CeOx/TiO2 family a potential candidate for industrial application as catalysts in the WGS reaction. The change in the metal-support interactions when going from Cu/TiO2 to Cu/CeOx/TiO2 illustrates the importance of optimizing the oxide phase when improving the performance of metal/oxide catalysts for the WGS. C1 [Plata, Jose J.; Graciani, Jesus; Fernandez Sanz, Javier] Univ Seville, Dept Quim Fis, E-41012 Seville, Spain. [Evans, Jaime] Cent Univ Venezuela, Fac Ciencias, Caracas 1020A, Venezuela. [Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Plata, Jose J.] Duke Univ, Mech Engn & Mat Sci Dept, Durham, NC 27705 USA. RP Sanz, JF (reprint author), Univ Seville, Dept Quim Fis, E-41012 Seville, Spain. EM sanz@us.es FU Ministerio de Economia y Competitividad (Spain) [CTQ2015-64669-P, CSD2008-0023]; European FEDER; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; Catalysis Science Program [DE-SC0012704] FX This work was funded by the Ministerio de Economia y Competitividad (Spain, grants CTQ2015-64669-P and CSD2008-0023) and European FEDER. Computational resources were provided by the Barcelona Supercomputing Center/Centro Nacional de Supercomputacion (Spain). The work performed at Brookhaven National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and Catalysis Science Program under contract No. DE-SC0012704. NR 66 TC 2 Z9 2 U1 33 U2 57 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD JUL PY 2016 VL 6 IS 7 BP 4608 EP 4615 DI 10.1021/acscatal.6b00948 PG 8 WC Chemistry, Physical SC Chemistry GA DQ8JO UT WOS:000379457300065 ER PT J AU Payne, MA Miller, JB Oliveros, ME Perez, G Gouvea, CP Archanjo, BS Achete, CA Gellman, AJ AF Payne, Matthew A. Miller, James B. Oliveros, Martin E. Perez, Geronimo Gouvea, Cristol P. Archanjo, Braulio S. Achete, Carlos A. Gellman, Andrew J. TI Assessment of a High-Throughput Methodology for the Study of Alloy Oxidation using AlxFeyNi1-x-y Composition Gradient Thin Films SO ACS COMBINATORIAL SCIENCE LA English DT Article DE Al-Fe-Ni; oxidation; Al2O3 passivation; thin films; materials libraries; high-throughput screening ID HIGH-TEMPERATURE OXIDATION; MATERIALS LIBRARIES; ALUMINUM-ALLOYS; AL ALLOYS; FE-AL; BEHAVIOR; COMBINATORIAL; RESISTANCE; DESIGN; SCALES AB The high-temperature oxidation of multicomponent metal alloys exhibits complex dependencies on composition, which are not fully understood for many systems. Combinatorial screening of the oxidation of many different compositions of a given alloy offers an ideal means for gaining fundamental insights into such systems. We have previously developed a high throughput methodology for studying AlxFeyNi1-x-y oxidation using similar to 100 nm thick composition spread alloy films (CSAFs). In this work, we critically assess two aspects of this methodology: the sensitivity of CSAF oxidation behavior to variations in AlxFeyNi1-x-y composition and the differences between the oxidation behavior of similar to 100 nm thick CSAFs and that of bulk AlxFeyNi1-x-y alloys. This was done by focusing specifically on AlxFe1-x and AlxNi1-x oxidation in dry air at 427 degrees C. Transitions between phenomenologically distinguishable types of oxidation behavior are found to occur over CSAF compositional ranges of <2 at. %. The oxidation of AlxFe1-x CSAFs is found to be very similar to that of bulk AlxFe1-x alloys, but some minor differences between CSAF and bulk behavior are observed for AlxNi1-x oxidation. On the basis of our assessment, high-throughput studies of CSAF oxidation appear to be an effective method for gaining fundamental insights into the composition dependence of the oxidation of bulk alloys. C1 [Payne, Matthew A.; Miller, James B.; Gellman, Andrew J.] Carnegie Mellon Univ, Dept Chem Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA. [Gellman, Andrew J.] Carnegie Mellon Univ, WE Scott Inst Energy Innovat, 5000 Forbes Ave, Pittsburgh, PA 15213 USA. [Payne, Matthew A.; Miller, James B.; Gellman, Andrew J.] US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA. [Oliveros, Martin E.; Perez, Geronimo; Gouvea, Cristol P.; Archanjo, Braulio S.; Achete, Carlos A.] Inst Nacl Metrol Qualidade & Tecnol, Div Mat Metrol, Av Nossa Senhora das Gracas 50, BR-25250020 Rio De Janeiro, Brazil. RP Gellman, AJ (reprint author), Carnegie Mellon Univ, Dept Chem Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA.; Gellman, AJ (reprint author), Carnegie Mellon Univ, WE Scott Inst Energy Innovat, 5000 Forbes Ave, Pittsburgh, PA 15213 USA.; Gellman, AJ (reprint author), US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA. EM gellman@cmu.edu RI Gellman, Andrew/M-2487-2014 OI Gellman, Andrew/0000-0001-6618-7427 FU Cross-Cutting Technologies Program at the National Energy Technology Laboratory; Carnegie Mellon University by NETL through the RES [DE-FE000400]; NSF [CBET-0923083]; CNPq; Finep; Faperj FX This work was funded by the Cross-Cutting Technologies Program at the National Energy Technology Laboratory, managed by Susan Maley (Technology Manager) and Charles Miller (Technical Monitor). The research was executed through NETL Office of Research and Development's Innovative Process Technologies (IPT) Field Work Proposal. This work was financially supported at the Carnegie Mellon University by NETL through the RES Contract No. DE-FE000400. NSF CBET-0923083 supported the development of the rotatable shadow mask CSAF deposition tool used to prepare the CSAFs for this work. The FIB and TEM microscopes at Inmetro are partly supported by the following Brazilian agencies: CNPq, Finep, and Faperj. NR 25 TC 1 Z9 1 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2156-8952 EI 2156-8944 J9 ACS COMB SCI JI ACS Comb. Sci. PD JUL PY 2016 VL 18 IS 7 BP 425 EP 436 DI 10.1021/acscombsci.6b00030 PG 12 WC Chemistry, Applied; Chemistry, Medicinal; Chemistry, Multidisciplinary SC Chemistry; Pharmacology & Pharmacy GA DR1AA UT WOS:000379637100008 PM 27224644 ER PT J AU Babchin, AJ Bentsen, R Faybishenko, B Geilikman, MB AF Babchin, A. J. Bentsen, R. Faybishenko, B. Geilikman, M. B. TI On the capillary pressure function in porous media based on relative permeabilities of two immiscible fluids: Application of capillary bundle models and validation using experimental data SO ADVANCES IN COLLOID AND INTERFACE SCIENCE LA English DT Article DE Capillary pressure curve; Relative permeability functions; Wetting and nonwetting phases; Capillary bundle models ID INTERFACIAL AREA; SATURATION; 2-FLUID; SYSTEMS; FLOW AB The objective of the current paper is to extend the theoretical approach and an analytical solution, which was proposed by Babchin and Faybishenko (2014), for the evaluation of a capillary pressure (P-c) curve in porous media based on the apparent specific surface area, using an explicit combination of the relative permeability functions for the wetting and nonwetting phases. Specifically, in the current paper, the authors extended this approach by the application of two types of capillary bundle models with different formulations of effective capillary radius formulae. The application of the new models allowed the authors to improve the results of calculations of the effective average contact angle given in the paper by Babchin and Faybishenko (2014). The validation of the new models for calculations of the P-c curve is also given in this paper using the results of a specifically designed core experiment, which was originally conducted by Ayub and Bentsen (2001). Published by Elsevier B.V. C1 [Babchin, A. J.] Alberta Res Council, Edmonton, AB, Canada. [Babchin, A. J.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel. [Bentsen, R.] Univ Alberta, Edmonton, AB, Canada. [Faybishenko, B.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Geilikman, M. B.] Shell Int E&P, Houston, TX USA. RP Faybishenko, B (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA. RI Faybishenko, Boris/G-3363-2015 OI Faybishenko, Boris/0000-0003-0085-8499 FU Sustainable Systems Scientific Focus Area (SFA) program at LBNL - U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Subsurface Biogeochemical Research Program [DE-AC02-05CH11231] FX The work of BF was partially supported by the Sustainable Systems Scientific Focus Area (SFA) program at LBNL, supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Subsurface Biogeochemical Research Program, through contract no. DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U. S. Department of Energy. The authors are very thankful to Dr. Christine Doughty of LBNL for her careful review and valuable suggestions, and two anonymous reviewers, whose comments helped the authors to improve the manuscript. The authors would like to express their sincere appreciation to Prof. Clayton Radke, one of the leading Chemical Engineers in the US, for his kind invitation to submit the paper to the Special Issue of the ACIS to honor his 70th Birthday. NR 40 TC 1 Z9 1 U1 6 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0001-8686 EI 1873-3727 J9 ADV COLLOID INTERFAC JI Adv. Colloid Interface Sci. PD JUL PY 2016 VL 233 BP 176 EP 185 DI 10.1016/j.cis.2015.07.001 PG 10 WC Chemistry, Physical SC Chemistry GA DQ9YD UT WOS:000379564300013 PM 26211849 ER PT J AU Rosler, SM Sieber, CMK Humpf, HU Tudzynski, B AF Roesler, Sarah M. Sieber, Christian M. K. Humpf, Hans-Ulrich Tudzynski, Bettina TI Interplay between pathway-specific and global regulation of the fumonisin gene cluster in the rice pathogen Fusarium fujikuroi SO APPLIED MICROBIOLOGY AND BIOTECHNOLOGY LA English DT Article DE Fusarium fujikuroi; Fumonisins; Biosynthesis; Regulation; Over-expression ID GIBBERELLA-FUJIKUROI; COREGULATED GENES; MAIZE KERNELS; SPHINGOLIPID METABOLISM; LIQUID-CHROMATOGRAPHY; STRUCTURE ELUCIDATION; TRANSCRIPTION FACTORS; BIOSYNTHETIC-PATHWAY; ASPERGILLUS-NIDULANS; MASS-SPECTROMETRY AB The rice pathogenic fungus Fusarium fujikuroi is known to produce a large variety of secondary metabolites. Besides the gibberellins, causing the bakanae effect in infected rice seedlings, the fungus produces several mycotoxins and pigments. Among the 47 putative secondary metabolite gene clusters identified in the genome of F. fujikuroi, the fumonisin gene cluster (FUM) shows very high homology to the FUM cluster of the main fumonisin producer Fusarium verticillioides, a pathogen of maize. Despite the high level of cluster gene conservation, total fumonisin FB1 and FB2 levels (FBx) produced by F. fujikuroi were only 1-10 % compared to F. verticillioides under inducing conditions. Nitrogen repression was found to be relevant for wild-type strains of both species. However, addition of germinated maize kernels activated the FBx production only in F. verticillioides, reflecting the different host specificity of both wild-type strains. Over-expression of the pathway-specific transcription factor Fum21 in F. fujikuroi strongly activated the FUM cluster genes leading to 1000-fold elevated FBx levels. To gain further insights into the nitrogen metabolite repression of FBx biosynthesis, we studied the impact of the global nitrogen regulators AreA and AreB and demonstrated that both GATA-type transcription factors are essential for full activation of the FUM gene cluster. Loss of one of them obstructs the pathway-specific transcription factor Fum21 to fully activate expression of FUM cluster genes. C1 [Roesler, Sarah M.; Humpf, Hans-Ulrich] Univ Munster, Inst Food Chem, Corrensstr 45, D-48149 Munster, Germany. [Roesler, Sarah M.; Tudzynski, Bettina] Univ Munster, Inst Plant Biol & Biotechnol, Schlosspl 8, D-48143 Munster, Germany. [Sieber, Christian M. K.] German Res Ctr Environm Hlth GmbH, Helmholtz Zentrum Munchen, Inst Bioinformat & Syst Biol, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany. [Sieber, Christian M. K.] DOE Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA. RP Tudzynski, B (reprint author), Univ Munster, Inst Plant Biol & Biotechnol, Schlosspl 8, D-48143 Munster, Germany. EM tudzynsb@uni-muenster.de FU Deutsche Forschungsgemeinschaft (DFG), Germany [Graduiertenkolleg 1409 (GRK1409)] FX This work and the research fellowship of Sarah Rosler were supported by funds of the Deutsche Forschungsgemeinschaft (DFG), Graduiertenkolleg 1409 (GRK1409, Germany). We thank Henning Harrer, Florian Hubner, and Matthias Behrens for very helpful discussion; Annika Moller-Kerrut for excellent technical assistance; and Melanie Brand for providing FB1. We are very grateful to Brian Williamson for critical reading of the manuscript. NR 85 TC 6 Z9 6 U1 10 U2 15 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0175-7598 EI 1432-0614 J9 APPL MICROBIOL BIOT JI Appl. Microbiol. Biotechnol. PD JUL PY 2016 VL 100 IS 13 BP 5869 EP 5882 DI 10.1007/s00253-016-7426-7 PG 14 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA DP8CO UT WOS:000378725700018 PM 26966024 ER PT J AU Menapace, JA Ehrmann, PE Bayramian, AJ Bullington, A Di Nicola, JMG Haefner, C Jarboe, J Marshall, C Schaffers, KI Smith, C AF Menapace, Joseph A. Ehrmann, Paul E. Bayramian, Andrew J. Bullington, Amber Di Nicola, Jean-Michel G. Haefner, Constantin Jarboe, Jeffrey Marshall, Christopher Schaffers, Kathleen I. Smith, Cal TI Imprinting high-gradient topographical structures onto optical surfaces using magnetorheological finishing: manufacturing corrective optical elements for high-power laser applications SO APPLIED OPTICS LA English DT Article ID REFRACTIVE-INDEX; DENSITY; MERCURY AB Corrective optical elements form an important part of high-precision optical systems. We have developed a method to manufacture high-gradient corrective optical elements for high-power laser systems using deterministic magnetorheological finishing (MRF) imprinting technology. Several process factors need to be considered for polishing ultraprecise topographical structures onto optical surfaces using MRF. They include proper selection of MRF removal function and wheel sizes, detailed MRF tool and interferometry alignment, and optimized MRF polishing schedules. Dependable interferometry also is a key factor in high-gradient component manufacture. A wavefront attenuating cell, which enables reliable measurement of gradients beyond what is attainable using conventional interferometry, is discussed. The results of MRF imprinting a 23 mu m deep structure containing gradients over 1.6 mu m / mm onto a fused-silica window are presented as an example of the technique's capabilities. This high-gradient element serves as a thermal correction plate in the high-repetition-rate advanced petawatt laser system currently being built at Lawrence Livermore National Laboratory. (C) 2016 Optical Society of America C1 [Menapace, Joseph A.; Ehrmann, Paul E.; Bayramian, Andrew J.; Bullington, Amber; Di Nicola, Jean-Michel G.; Haefner, Constantin; Jarboe, Jeffrey; Marshall, Christopher; Schaffers, Kathleen I.; Smith, Cal] Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. RP Menapace, JA (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. EM menapace1@llnl.gov FU U.S. Department of Energy (DOE) [DE-AC52-07NA27344]; Lawrence Livermore National Laboratory (LLNL) FX U.S. Department of Energy (DOE) (DE-AC52-07NA27344); Lawrence Livermore National Laboratory (LLNL). NR 27 TC 0 Z9 1 U1 8 U2 11 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD JUL 1 PY 2016 VL 55 IS 19 BP 5240 EP 5248 DI 10.1364/AO.55.005240 PG 9 WC Optics SC Optics GA DR1TH UT WOS:000379687300039 PM 27409216 ER PT J AU Berger, MA Mathew, PA Walter, T AF Berger, Michael A. Mathew, Paul A. Walter, Travis TI Big Data Analytics In the Building Industry SO ASHRAE JOURNAL LA English DT Article C1 [Berger, Michael A.; Mathew, Paul A.; Walter, Travis] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Berger, MA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. FU U.S. Department of Energy's Building Technologies Office FX The authors gratefully acknowledge the many data contributors to the BPD, and energy professionals who shared how they use the tool. The BPD is sponsored by the U.S. Department of Energy's Building Technologies Office. NR 8 TC 1 Z9 1 U1 15 U2 15 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 EI 1943-6637 J9 ASHRAE J JI ASHRAE J. PD JUL PY 2016 VL 58 IS 7 BP 38 EP + PG 7 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA DR1AS UT WOS:000379638900009 ER PT J AU Kennamer, RA Hepp, GR Alexander, BW AF Kennamer, Robert A. Hepp, Gary R. Alexander, Bradley W. TI Effects of current reproductive success and individual heterogeneity on survival and future reproductive success of female Wood Ducks SO AUK LA English DT Article DE life history tradeoffs; capture-mark-recapture; apparent survival; reproductive success; female quality; Aix sponsa ID PRAIRIE POTHOLE REGION; BREEDING-SEASON SURVIVAL; AMERICAN BLACK DUCKS; BODY CONDITION; NEST SUCCESS; AIX-SPONSA; PREDATOR REDUCTION; HABITAT CONDITIONS; CAPTURE-RECAPTURE; MALLARD FEMALES AB Estimates of vital rates and their sources of variation are necessary to understand the population dynamics of any organism. These data have been used to test predictions of life history theory as well as to guide decisions of wildlife managers and conservation biologists. Life history theory predicts tradeoffs among life history traits, such that current reproductive effort will be negatively correlated with survival and/or future reproduction. Many studies support this prediction, but others report positive covariation between fitness traits, and attribute positive correlations to differences in individual quality. In this study, we used 11 yr of capture-mark-recapture data of breeding female Wood Ducks (Aix sponsa), along with their breeding histories, to examine sources of variation in annual survival rates and to assess the impact of current reproductive success on probabilities of survival and future reproductive success. Cormack-Jolly-Seber models indicated that apparent survival of female Wood Ducks did not vary annually and was only weakly affected by age class and breeding habitat conditions, but that there was a strong positive relationship between survival and the number of successful nests (0, 1, or 2). Next, we used a multistate analysis to examine the importance of female nest fate (successful or failed) on the probability of surviving and of nesting successfully the next year. Early incubation body mass was used to assess the nutritional status and quality of females. Females that nested successfully in year t were not less likely to nest successfully in year t + 1 than females that had nested unsuccessfully in year t. We also found strong positive covariation between nest success in year t and the probability of surviving. However, being in relatively good or poor condition had no effect on these relationships. Our results are consistent with the idea that female quality is heterogeneous, but body mass was not a good proxy of quality. Therefore, the existence of tradeoffs between female reproductive success and survival or future reproduction was less clear because of our inability to identify and control for differences in female quality. C1 [Kennamer, Robert A.] Savannah River Ecol Lab, Aiken, SC 29831 USA. [Hepp, Gary R.; Alexander, Bradley W.] Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA. RP Kennamer, RA (reprint author), Savannah River Ecol Lab, Aiken, SC 29831 USA.; Hepp, GR (reprint author), Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA. EM rkennamer@srel.uga.edu; heppgar@auburn.edu FU Department of Energy Office of Environmental Management [DE-FC09-07SR22506]; Alabama Agricultural Experiment Station FX Funding statement: Financial support was provided by the Department of Energy Office of Environmental Management under Award Number DE-FC09-07SR22506 to the University of Georgia Research Foundation, and the Alabama Agricultural Experiment Station to G.R.H. Neither of the funders had any input into the content of the manuscript, nor required approval prior to submission or publication. NR 97 TC 0 Z9 0 U1 11 U2 12 PU AMER ORNITHOLOGISTS UNION PI LAWRENCE PA ORNITHOLOGICAL SOC NORTH AMER PO BOX 1897, LAWRENCE, KS 66044-8897 USA SN 0004-8038 EI 1938-4254 J9 AUK JI AUK PD JUL PY 2016 VL 133 IS 3 BP 439 EP 450 DI 10.1642/AUK-15-183.1 PG 12 WC Ornithology SC Zoology GA DR1KC UT WOS:000379663400009 ER PT J AU Desai, MS Wang, E Joyner, K Chung, TW Jin, HE Lee, SW AF Desai, Malav S. Wang, Eddie Joyner, Kyle Chung, Tae Won Jin, Hyo-Eon Lee, Seung-Wuk TI Elastin-Based Rubber-Like Hydrogels SO BIOMACROMOLECULES LA English DT Article ID INVERSE TEMPERATURE TRANSITION; DOUBLE-NETWORK HYDROGELS; SLIDE-RING GELS; BIOMEDICAL APPLICATIONS; NANOCOMPOSITE HYDROGELS; POLY(ETHYLENE GLYCOL); TOUGH HYDROGELS; CROSS-LINKING; POLYPEPTIDES; PROTEIN AB We developed rubber-like elastomeric materials using a natural elastin derived sequence and genetic engineering to create precisely defined elastin-like polypeptides. The coiled elastin-like polypeptide chains, which behave like entropic springs, were cross-linked using an end-to-end tethering scheme to synthesize simple hydrogels with excellent extensibility and reversibility. Our hydrogels extend to strains as high as 1500% and remain highly resilient with elastic recovery as high as 94% even at 600% strain, significantly exceeding any other protein-based valuable as elastomeric hydrogels for designing extremely robust scaffolds useful for tissue engineering. C1 [Lee, Seung-Wuk] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. Lawrence Berkeley Natl Lab, Biol Syst & Engn, Berkeley, CA 94720 USA. [Jin, Hyo-Eon] Ajou Univ, Coll Pharm, Suwon 16499, South Korea. RP Lee, SW (reprint author), Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. EM leesw@berkeley.edu OI Desai, Malav/0000-0002-4160-6944; Wang, Eddie/0000-0002-9814-0102 FU NIH ARRA [DE 018360-02]; Tsinghua-Berkeley Shenzhen Institute; National Research Foundation of Korea - Korean Government [NRF-2014S1A2A2027641]; Siebel Scholars Foundation; Office of Science, Office of Basic Energy Sciences, Office of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by NIH ARRA supplement to an NIDCR R21 Grant (DE 018360-02) and Tsinghua-Berkeley Shenzhen Institute. It was also partially supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2014S1A2A2027641) and Siebel Scholars Foundation. Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, Office of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The authors thank Paul Keselman for his help in fabricating the liquid testing chamber. NR 37 TC 4 Z9 4 U1 23 U2 39 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1525-7797 EI 1526-4602 J9 BIOMACROMOLECULES JI Biomacromolecules PD JUL PY 2016 VL 17 IS 7 BP 2409 EP 2416 DI 10.1021/acs.biomac.6b00515 PG 8 WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science SC Biochemistry & Molecular Biology; Chemistry; Polymer Science GA DR1AH UT WOS:000379637800011 PM 27257908 ER PT J AU Rivas-Ubach, A Hodar, JA Sardans, J Kyle, JE Kim, YM Oravec, M Urban, O Guenther, A Penuelas, J AF Rivas-Ubach, Albert Hodar, Jose A. Sardans, Jordi Kyle, Jennifer E. Kim, Young-Mo Oravec, Michal Urban, Otmar Guenther, Alex Penuelas, Josep TI Are the metabolomic responses to folivory of closely related plant species linked to macroevolutionary and plant-folivore coevolutionary processes? SO ECOLOGY AND EVOLUTION LA English DT Article DE Folivory; macroevolutionary history; Pinus; plant-insect coevolution; processionary moth ID PINE PROCESSIONARY MOTH; CATERPILLAR THAUMETOPOEA-PITYOCAMPA; ELEMENTAL STOICHIOMETRY; ANTIHERBIVORE DEFENSES; RANGE EXPANSION; CLIMATE-CHANGE; GENOME SIZE; EVOLUTION; ECOSYSTEMS; HERBIVORY AB The debate whether the coevolution of plants and insects or macroevolutionary processes (phylogeny) is the main driver determining the arsenal of molecular defensive compounds of plants remains unresolved. Attacks by herbivorous insects affect not only the composition of defensive compounds in plants but also the entire metabolome. Metabolomes are the final products of genotypes and are constrained by macroevolutionary processes, so closely related species should have similar metabolomic compositions and may respond in similar ways to attacks by folivores. We analyzed the elemental compositions and metabolomes of needles from three closely related Pinus species with distant coevolutionary histories with the caterpillar of the processionary moth respond similarly to its attack. All pines had different metabolomes and metabolic responses to herbivorous attack. The metabolomic variation among the species and the responses to folivory reflected their macroevolutionary relationships, with P. pinaster having the most divergent metabolome. The concentrations of terpenes were in the attacked trees supporting the hypothesis that herbivores avoid plant individuals with higher concentrations. Our results suggest that macroevolutionary history plays important roles in the metabolomic responses of these pine species to folivory, but plant-insect coevolution probably constrains those responses. Combinations of different evolutionary factors and trade-offs are likely responsible for the different responses of each species to folivory, which is not necessarily exclusively linked to plant-insect coevolution. C1 [Rivas-Ubach, Albert] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA. [Rivas-Ubach, Albert; Sardans, Jordi; Penuelas, Josep] CREAF, Cerdanyola Del Valles 08913, Catalonia, Spain. [Hodar, Jose A.] Univ Granada, Fac Ciencias, Grp Ecol Terr, Dept Biol Anim & Ecol, E-18071 Granada, Spain. [Sardans, Jordi; Penuelas, Josep] UAB, CSIC, CEAB, Global Ecol Unit CREAF, Cerdanyola Del Valles 08913, Catalonia, Spain. [Kyle, Jennifer E.; Kim, Young-Mo] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99354 USA. [Oravec, Michal; Urban, Otmar] Acad Sci Czech Republic, Global Change Res Ctr, Belidla 4a, CZ-60300 Brno, Czech Republic. [Guenther, Alex] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA. RP Rivas-Ubach, A (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA. EM albert.rivas.ubach@gmail.com RI Urban, Otmar/J-7432-2012; Kim, Young-Mo/D-3282-2009; OI Kim, Young-Mo/0000-0002-8972-7593; Sardans, Jordi/0000-0003-2478-0219; Penuelas, Josep/0000-0002-7215-0150 FU CSIC; European Research Council Synergy grant [SyG-2013-610028]; Spanish Government projects [CGL2013-48074-P, OAPN 022/2008]; Catalan Government project [SGR 2014-274]; CASR [M200871201]; Ministry for Education, Youth and Sports of the Czech Republic within the National Programme for Sustainability I [LO1415] FX ARU appreciates the financial support of the research fellowship (JAE) from the CSIC. This research was supported by the European Research Council Synergy grant SyG-2013-610028 IMBALANCE-P, the Spanish Government projects CGL2013-48074-P and OAPN 022/2008 (PROPINOL), and the Catalan Government project SGR 2014-274. MO and OU were supported by the grant project M200871201 (CASR) and by the Ministry for Education, Youth and Sports of the Czech Republic within the National Programme for Sustainability I, grant no. LO1415. NR 84 TC 1 Z9 1 U1 10 U2 20 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 2045-7758 J9 ECOL EVOL JI Ecol. Evol. PD JUL PY 2016 VL 6 IS 13 BP 4372 EP 4386 DI 10.1002/ece3.2206 PG 15 WC Ecology; Evolutionary Biology SC Environmental Sciences & Ecology; Evolutionary Biology GA DQ6VU UT WOS:000379344400012 PM 27386082 ER PT J AU DuPont, B Cagan, J Moriarty, P AF DuPont, Bryony Cagan, Jonathan Moriarty, Patrick TI An advanced modeling system for optimization of wind farm layout and wind turbine sizing using a multi-level extended pattern search algorithm SO ENERGY LA English DT Article DE Wind farm optimization; Wind farm modeling; Extended pattern search algorithm; Systems optimization ID ATMOSPHERIC STABILITY; GENETIC ALGORITHMS; DESIGN; DEPENDENCE; PLACEMENT; EXPONENT; AGENTS AB This paper presents a system of modeling advances that can be applied in the computational optimization of wind plants. These modeling advances include accurate cost and power modeling, partial wake interaction, and the effects of varying atmospheric stability. To validate the use of this advanced modeling system, it is employed within an Extended Pattern Search (EPS)-Multi-Agent System (MAS) optimization approach for multiple wind scenarios. The wind farm layout optimization problem involves optimizing the position and size of wind turbines such that the aerodynamic effects of upstream turbines are reduced, which increases the effective wind speed and resultant power at each turbine. The EPS-MAS optimization algorithm employs a profit objective, and an overarching search determines individual turbine positions, with a concurrent EPS-MAS determining the optimal hub height and rotor diameter for each turbine. Two wind cases are considered: (1) constant, unidirectional wind, and (2) three discrete wind speeds and varying wind directions, each of which have a probability of occurrence. Results show the advantages of applying the series of advanced models compared to previous application of an EPS with less advanced models to wind farm layout optimization, and imply best practices for computational optimization of wind farms with improved accuracy. (C) 2015 Elsevier Ltd. All rights reserved. C1 [DuPont, Bryony] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA. [Cagan, Jonathan] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15232 USA. [Moriarty, Patrick] Natl Wind Technol Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. RP DuPont, B (reprint author), Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA. EM bryony.dupont@oregonstate.edu; cagan@cmu.edu; patrick.moriarty@nrel.gov FU National Science Foundation [CMMI-0940730, CMMI-0855326]; NREL Research Participant Program; U.S. Department of Energy [DE-AC36-08G028308]; National Renewable Energy Laboratory; DOE Office of Energy Efficiency and Renewable Energy, Wind and Water Power Technologies Office FX This work has been funded in part by the National Science Foundation under grants CMMI-0940730 and CMMI-0855326, and the NREL Research Participant Program. The NREL portion of the work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08G028308 with the National Renewable Energy Laboratory. Funding for that work was provided by the DOE Office of Energy Efficiency and Renewable Energy, Wind and Water Power Technologies Office. NR 52 TC 0 Z9 0 U1 2 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 EI 1873-6785 J9 ENERGY JI Energy PD JUL 1 PY 2016 VL 106 BP 802 EP 814 DI 10.1016/j.energy.2015.12.033 PG 13 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA DP7DP UT WOS:000378659700071 ER PT J AU Schindler, M Hochella, MF AF Schindler, Michael Hochella, Michael F., Jr. TI Nanomineralogy as a new dimension in understanding elusive geochemical processes in soils: The case of low-solubility-index elements SO GEOLOGY LA English DT Article ID MASS-BALANCE; CHEMISTRY; MOBILITY; DISSOLUTION; ZIRCONIUM; TRANSPORT; MINERALS; TITANIUM; ZR AB Nanomineralogical studies of mineral surface coatings in soils reveal insights into biogeochemical processes that heretofore were not known to exist. This is a new dimension in understanding past and present biogeochemical processes in soils, and in this study it is a way to better understand the behavior of low-solubility-index elements such as Al, Ti, and Zr. Soils were sampled from selected sites in Sudbury (Ontario, Canada) that have been affected by acidification and particulate matter emissions from base-metal smelters with subsequent remediation within the past century. These anthropogenic processes have affected an entire landscape, but are now recorded in assemblages of nano-size phases that can be only studied using a combination of focused ion beam technology (for sample preparation) and high-resolution analytical transmission electron microscopy (for phase identification). A first generation of clay minerals (pre-acidification phase), their partial replacement by nano-size hematite and amorphous silica (anthropogenic acidification), and a second generation of clay minerals (post-acidification, including soil remediation) are products of changes in soil biogeochemical processes during these natural and anthropogenic-induced weathering stages. Complex assemblages of nanophases formed prior to the second generation of clay minerals depict underlying mechanisms for the mobilization and sequestration of the low-solubility-index elements Zr and Ti under acidic conditions. The occurrence of baddeleyite (ZrO2), anatase (TiO2), and the Magneli phases Ti4O7 and Ti5O9 (all present at the nanoscale) suggest an influx of nanocolloidal Zr and Ti oxides during weathering of smelter-derived particulate matter. Kelyshite {NaZr[Si2O6(OH)]}, authigenic zircon (ZrSiO4), and kleberite [Fe3+Ti6O11(OH)(5)] are most likely products of the sequestration of the Zr- and Ti-bearing nanocolloids. C1 [Schindler, Michael] Laurentian Univ, Dept Earth Sci, Sudbury, ON P3E 2C6, Canada. [Hochella, Michael F., Jr.] Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA. [Hochella, Michael F., Jr.] Pacific Northwest Natl Lab, Geosci Grp, Richland, WA 99352 USA. RP Schindler, M (reprint author), Laurentian Univ, Dept Earth Sci, Sudbury, ON P3E 2C6, Canada. FU Natural Sciences and Engineering Research Council of Canada; Virginia Tech National Center for Earth and Environmental Infrastructure under U.S. National Science Foundation (NSF) [1542100]; U.S. Environmental Protection Agency (EPA) under NSF [EF-0830093]; NSF [ECCS 1542100] FX We thank Editor Brendan Murphy for handling the paper, and Graeme Spiers, reviewer Carleton Bern, and two anonymous reviewers for constructive comments that helped improve the paper. This work was supported by a Natural Sciences and Engineering Research Council of Canada Discovery grant to Schindler. Hochella acknowledges the Virginia Tech National Center for Earth and Environmental Infrastructure funded under U.S. National Science Foundation (NSF) grant 1542100, and the NSF and the U.S. Environmental Protection Agency (EPA) under NSF Cooperative Agreement EF-0830093. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF or the EPA. This work has not been subjected to EPA review and no official endorsement should be inferred. We thank the Nanoscale Fabrication and Characterization Laboratory staff at Virginia Tech (especially Christopher Winkler and James Tuggle), as well as the Virginia Tech National Center for Earth and Environmental Nanotechnology Infrastructure (NanoEarth), a member of the National Nanotechnology Coordinated Infrastructure (NNCI) supported by NSF Cooperative Agreement ECCS 1542100. NR 32 TC 1 Z9 1 U1 5 U2 8 PU GEOLOGICAL SOC AMER, INC PI BOULDER PA PO BOX 9140, BOULDER, CO 80301-9140 USA SN 0091-7613 EI 1943-2682 J9 GEOLOGY JI Geology PD JUL PY 2016 VL 44 IS 7 BP 515 EP 518 DI 10.1130/G37774.1 PG 4 WC Geology SC Geology GA DQ7AH UT WOS:000379358300011 ER PT J AU Ganapati, V Steiner, MA Yablonovitch, E AF Ganapati, Vidya Steiner, Myles A. Yablonovitch, Eli TI The Voltage Boost Enabled by Luminescence Extraction in Solar Cells SO IEEE JOURNAL OF PHOTOVOLTAICS LA English DT Article DE Luminescence; photovoltaic cells; solar energy ID EFFICIENCY; LIMIT AB Over the past few years, the application of the physical principle, i.e., "luminescence extraction," has produced record voltages and efficiencies in photovoltaic cells. Luminescence extraction is the use of optical design, such as a back mirror or textured surfaces, to help internal photons escape out of the front surface of a solar cell. The principle of luminescence extraction is exemplified by the mantra "a good solar cell should also be a good LED." Basic thermodynamics says that the voltage boost should be related to concentration ratio C of a resource by Delta V = (kT/q) ln{C}. In light trapping (i.e., when the solar cell is textured and has a perfect back mirror), the concentration ratio of photons C = {4n(2)}; therefore, one would expect a voltage boost of Delta V = (kT/q) ln{4n(2)} over a solar cell with no texture and zero back reflectivity, where n is the refractive index. Nevertheless, there has been ambiguity over the voltage benefit to be expected from perfect luminescence extraction. Do we gain an open-circuit voltage boost of Delta V = (kT/q) ln{n(2)}, Delta V = (kT/q) ln{2n(2)}, or Delta V = (kT/q) ln{4n(2)}? What is responsible for this voltage ambiguity Delta V= (kT/q) ln{4} approximate to 36 mV? We show that different results come about, depending on whether the photovoltaic cell is optically thin or thick to its internal luminescence. In realistic intermediate cases of optical thickness, the voltage boost falls in between: ln{n(2)} < (q Delta V/kT) < ln{4n(2)}. C1 [Ganapati, Vidya; Yablonovitch, Eli] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. [Steiner, Myles A.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Ganapati, V (reprint author), Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. EM vidyag@eecs.berkeley.edu; myles.steiner@nrel.gov; eliy@eecs.berkeley.edu FU U.S. Department of Energy "Light-Material Interactions in Energy Conversion" Energy Frontier Research Center [DE-AC02-05CH11231]; U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory FX The work of V. Ganapati and E. Yablonovitch was supported by the U.S. Department of Energy "Light-Material Interactions in Energy Conversion" Energy Frontier Research Center under Grant DE-AC02-05CH11231. The work of M. A. Steiner was supported by the U.S. Department of Energy under Contract DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. NR 19 TC 2 Z9 2 U1 10 U2 12 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 2016 VL 6 IS 4 BP 801 EP 809 DI 10.1109/JPHOTOV.2016.2547580 PG 9 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DR1WS UT WOS:000379696200002 ER PT J AU Burton, PD Hendrickson, A Ulibarri, SS Riley, D Boyson, WE King, BH AF Burton, Patrick D. Hendrickson, Alex Ulibarri, Stephen Seth Riley, Daniel Boyson, William E. King, Bruce H. TI Pattern Effects of Soil on Photovoltaic Surfaces SO IEEE JOURNAL OF PHOTOVOLTAICS LA English DT Article DE Performance loss; soiling; standardized test methods; surface contamination AB The texture or patterning of soil on PV surfaces may influence light capture at various angles of incidence (AOI). Accumulated soil can be considered a microshading element, which changes with respect to AOI. Laboratory deposition of simulated soil was used to prepare test coupons for simultaneous AOI and soiling loss experiments. A mixed solvent deposition technique was used to consistently deposit patterned test soils onto glass slides. Transmission decreased as soil loading and AOI increased. Dense aggregates significantly decreased transmission. However, highly dispersed particles are less prone to secondary scattering, improving overall light collection. In order to test AOI losses on relevant systems, uniform simulated soil coatings were applied to split reference cells to further examine this effect. The measured optical transmission and area coverage correlated closely to the observed I-SC. Angular losses were significant at angles as low as 25 degrees. C1 [Burton, Patrick D.; Ulibarri, Stephen Seth; Riley, Daniel; Boyson, William E.; King, Bruce H.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Hendrickson, Alex] Penn State Univ, State Coll, PA 16801 USA. RP Burton, PD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM pdburto@sandia.gov; ahendri53@gmail.com; ssuliba@sandia.gov; driley@sandia.gov; weboyso@sandia.gov; bhking@sandia.gov FU U.S. Department of Energy SunShot Initiative; Lockheed Martin Corporation for the U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported by the U.S. Department of Energy SunShot Initiative. 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 12 TC 0 Z9 0 U1 3 U2 3 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 2016 VL 6 IS 4 BP 976 EP 980 DI 10.1109/JPHOTOV.2016.2567100 PG 5 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DR1WS UT WOS:000379696200026 ER PT J AU Essig, S Steiner, MA Allebe, C Geisz, JF Paviet-Salomon, B Ward, S Descoeudres, A LaSalvia, V Barraud, L Badel, N Faes, A Levrat, J Despeisse, M Ballif, C Stradins, P Young, DL AF Essig, Stephanie Steiner, Myles A. Allebe, Christophe Geisz, John F. Paviet-Salomon, Bertrand Ward, Scott Descoeudres, Antoine LaSalvia, Vincenzo Barraud, Loris Badel, Nicolas Faes, Antonin Levrat, Jacques Despeisse, Matthieu Ballif, Christophe Stradins, Paul Young, David L. TI Realization of GaInP/Si Dual-Junction Solar Cells With 29.8% 1-Sun Efficiency SO IEEE JOURNAL OF PHOTOVOLTAICS LA English DT Article DE Multijunction solar cell; silicon solar cells; III-V semiconductor materials ID SILICON; TANDEM; DEVICES; GROWTH; WAFER AB Combining a Si solar cell with a high-bandgap top cell reduces the thermalization losses in the short wavelength and enables theoretical 1-sun efficiencies far over 30%. We have investigated the fabrication and optimization of Si-based tandem solar cells with 1.8-eV rear-heterojunction GaInP top cells. The III-V and Si heterojunction subcells were fabricated separately and joined by mechanical stacking using electrically insulating optically transparent interlayers. Our GaInP/Si dual-junction solar cells have achieved a certified cumulative 1-sun efficiency of 29.8% +/- 0.6% (AM1.5g) in four-terminal operation conditions, which exceeds the record 1-sun efficiencies achieved with both III-V and Si single-junction solar cells. The effect of luminescent coupling between the subcells has been investigated, and optical losses in the solar cell structure have been addressed. C1 [Essig, Stephanie; Steiner, Myles A.; Geisz, John F.; Ward, Scott; LaSalvia, Vincenzo; Stradins, Paul; Young, David L.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Essig, Stephanie] Ecole Polytech Fed Lausanne, Photovolta & Thin Film Elect Lab, CH-2000 Neuchatel, Switzerland. [Allebe, Christophe; Paviet-Salomon, Bertrand; Descoeudres, Antoine; Barraud, Loris; Badel, Nicolas; Faes, Antonin; Levrat, Jacques; Despeisse, Matthieu; Ballif, Christophe] Swiss Ctr Elect & Microtechnol CSEM, CH-2002 Neuchatel, Switzerland. RP Essig, S (reprint author), Ecole Polytech Fed Lausanne, Photovolta & Thin Film Elect Lab, CH-2000 Neuchatel, Switzerland. EM stephanie.essig@epfl.ch; myles.steiner@nrel.gov; christophe.allebe@csem.ch; john.geisz@nrel.gov; bertrand.paviet-salomon@csem.ch; scott.ward@nrel.gov; an-toine.descoeudres@epfl.ch; vincenzo.lasalvia@nrel.gov; loris.barraud@csem.ch; nicolas.badel@csem.ch; antonin.faes@csem.ch; jacques.levrat@csem.ch; matthieu.despeisse@csem.ch; christophe.ballif@csem.ch; pauls.stradins@nrel.gov; david.young@nrel.gov RI Despeisse, Matthieu/E-3821-2017 OI Despeisse, Matthieu/0000-0002-8688-4681 FU U.S. Department of Energy [DE-EE00025783] FX This work was supported by the U.S. Department of Energy under Contract DE-EE00025783. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. NR 40 TC 6 Z9 6 U1 9 U2 16 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 2016 VL 6 IS 4 BP 1012 EP 1019 DI 10.1109/JPHOTOV.2016.2549746 PG 8 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DR1WS UT WOS:000379696200031 ER PT J AU Hwang, M Muljadi, E Park, JW Sorensen, P Kang, YC AF Hwang, Min Muljadi, Eduard Park, Jung-Wook Sorensen, Poul Kang, Yong Cheol TI Dynamic Droop-Based Inertial Control of a Doubly-Fed Induction Generator SO IEEE TRANSACTIONS ON SUSTAINABLE ENERGY LA English DT Article DE Dynamic droop; frequency nadir; inertial control; rate of change of frequency; wind turbine generator ID WIND POWER PENETRATION; FREQUENCY CONTROL; TURBINES; SYSTEMS; ENERGY AB If a large disturbance occurs in a power grid, two auxiliary loops for the inertial control of a wind turbine generator have been used: droop loop and rate of change of frequency (ROCOF) loop. Because their gains are fixed, difficulties arise in determining them suitable for all grid and wind conditions. This paper proposes a dynamic droop-based inertial control scheme of a doubly-fed induction generator (DFIG). The scheme aims to improve the frequency nadir (FN) and ensure stable operation of a DFIG. To achieve the first goal, the scheme uses a droop loop, but it dynamically changes its gain based on the ROCOF to release a large amount of kinetic energy during the initial stage of a disturbance. To do this, a shaping function that relates the droop to the ROCOF is used. To achieve the second goal, different shaping functions, which depend on rotor speeds, are used to give a large contribution in high wind conditions and prevent over-deceleration in low wind conditions during inertial control. The performance of the proposed scheme was investigated under various wind conditions using an EMTP-RV simulator. The results indicate that the scheme improves the FN and ensures stable operation of a DFIG. C1 [Hwang, Min] Chonbuk Natl Univ, Dept Elect Engn, Jeonju 561756, South Korea. [Hwang, Min] Chonbuk Natl Univ, Wind Energy Grid Adapt Technol WeGAT Res Ctr, Jeonju 561756, South Korea. [Muljadi, Eduard] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Park, Jung-Wook] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea. [Sorensen, Poul] Tech Univ Denmark, Dept Wind Energy, DK-4000 Roskilde, Denmark. [Kang, Yong Cheol] Chonbuk Natl Univ, Dept Elect Engn, WeGAT Res Ctr, Jeonju 561756, South Korea. [Kang, Yong Cheol] Chonbuk Natl Univ, Smart Grid Res Ctr, Jeonju 561756, South Korea. RP Hwang, M (reprint author), Chonbuk Natl Univ, Dept Elect Engn, Jeonju 561756, South Korea.; Hwang, M (reprint author), Chonbuk Natl Univ, Wind Energy Grid Adapt Technol WeGAT Res Ctr, Jeonju 561756, South Korea. EM skyway333@jbnu.ac.kr; eduard.muljadi@nrel.gov; jungpark@yonsei.ac.kr; posq@dtu.dk; yckang@jbnu.ac.kr RI Sorensen, Poul/C-6263-2008 OI Sorensen, Poul/0000-0001-5612-6284 FU National Research Foundation of Korea (NRF) grant - Korea government (MSIP) [2010-0028509]; Chonbuk National University; U.S. Department of Energy [DE-AC36-08-GO28308]; NREL FX This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (no. 2010-0028509) and in part by the research funds of Chonbuk National University in 2014. NREL's contribution to this work was supported by the U.S. Department of Energy under Contract no. DE-AC36-08-GO28308 with the NREL. Paper no. TSTE-00342-2015. NR 24 TC 0 Z9 0 U1 2 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1949-3029 J9 IEEE T SUSTAIN ENERG JI IEEE Trans. Sustain. Energy PD JUL PY 2016 VL 7 IS 3 BP 924 EP 933 DI 10.1109/TSTE.2015.2508792 PG 10 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering, Electrical & Electronic SC Science & Technology - Other Topics; Energy & Fuels; Engineering GA DR1WW UT WOS:000379696600003 ER PT J AU Paparella, F Bacelli, G Paulmeno, A Mouring, SE Ringwood, JV AF Paparella, Francesco Bacelli, Giorgio Paulmeno, Andrew Mouring, Sarah E. Ringwood, John V. TI Multibody Modelling of Wave Energy Converters Using Pseudo-Spectral Methods With Application to a Three-Body Hinge-Barge Device SO IEEE TRANSACTIONS ON SUSTAINABLE ENERGY LA English DT Article DE Multi-body wave energy converters; pseudo-spectral methods; model-based control ID CONSTRAINED MECHANICAL SYSTEMS; SPARSITY-ORIENTED APPROACH; DYNAMIC ANALYSIS; EQUATIONS; DESIGN AB Multibody wave energy converters are composed of several bodies interconnected by joints. Two different formulations are adopted to describe the dynamics of multibody systems: the differential and algebraic equations (DAEs) formulation, and the ordinary differential equations (ODEs) formulation. While the number of variables required for the description of the dynamics of a multibody system is greater in the DAE formulation than in the ODE formulation, the ODE formulation involves an extra computational effort in order to describe the dynamics of the system with a smaller number of variables. In this paper, pseudo-spectral (PS) methods are applied in order to solve the dynamics of multibody wave energy converters using both DAE and ODE formulations. Apart from providing a solution to the dynamics of multibody systems, pseudo-spectral methods provide an accurate and efficient formulation for the control of multibody wave energy converters. As an application example, this paper focuses on the dynamic modeling of a three-body hinge-barge device, where wave-tank tests are carried out in order to validate the DAE and ODE models against experimental data. Comparison of the ODE and DAE PS methods against a reference model based on the straightforward (Runge-Kutta) integration of the equations of motion shows that pseudo-spectral methods are computationally more stable and require less computational effort for short time steps. C1 [Paparella, Francesco; Ringwood, John V.] Natl Univ Ireland Maynooth, COER, Maynooth, Kildare, Ireland. [Bacelli, Giorgio] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Paulmeno, Andrew; Mouring, Sarah E.] US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. RP Paparella, F (reprint author), Natl Univ Ireland Maynooth, COER, Maynooth, Kildare, Ireland. EM fpaparella@eeng.nuim.ie; gbacelli@sandia.gov; paulmenoa@yahoo.com; mouring@usna.edu; john.ringwood@eeng.nuim.ie OI Ringwood, John/0000-0003-0395-7943 FU Science Foundation Ireland [12/RC/2302] FX This paper was supported by the Science Foundation Ireland under Grant 12/RC/2302 for the Marine Renewable Ireland (MaREI) Centre. Paper no. TSTE-00644-2015. NR 24 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1949-3029 J9 IEEE T SUSTAIN ENERG JI IEEE Trans. Sustain. Energy PD JUL PY 2016 VL 7 IS 3 BP 966 EP 974 DI 10.1109/TSTE.2015.2510699 PG 9 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering, Electrical & Electronic SC Science & Technology - Other Topics; Energy & Fuels; Engineering GA DR1WW UT WOS:000379696600007 ER PT J AU Wall, ME AF Wall, Michael E. TI Quantum crystallographic charge density of urea SO IUCRJ LA English DT Article DE charge density; quantum theory; spherical atom model ID X-RAY-SCATTERING; ANISOTROPIC DISPLACEMENT PARAMETERS; ELECTRON POPULATION ANALYSIS; HIRSHFELD ATOM REFINEMENT; ACCURATE DIFFRACTION DATA; NEUTRON-DIFFRACTION; MOLECULAR-CRYSTALS; MODEL; PROTEIN; RESOLUTION AB Standard X-ray crystallography methods use free-atom models to calculate mean unit-cell charge densities. Real molecules, however, have shared charge that is not captured accurately using free-atom models. To address this limitation, a charge density model of crystalline urea was calculated using high-level quantum theory and was refined against publicly available ultra-high-resolution experimental Bragg data, including the effects of atomic displacement parameters. The resulting quantum crystallographic model was compared with models obtained using spherical atom or multipole methods. Despite using only the same number of free parameters as the spherical atom model, the agreement of the quantum model with the data is comparable to the multipole model. The static, theoretical crystalline charge density of the quantum model is distinct from the multipole model, indicating the quantum model provides substantially new information. Hydrogen thermal ellipsoids in the quantum model were very similar to those obtained using neutron crystallography, indicating that quantum crystallography can increase the accuracy of the X-ray crystallographic atomic displacement parameters. The results demonstrate the feasibility and benefits of integrating fully periodic quantum charge density calculations into ultra-high-resolution X-ray crystallographic model building and refinement. C1 [Wall, Michael E.] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Mail Stop B256, Los Alamos, NM 87545 USA. RP Wall, ME (reprint author), Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Mail Stop B256, Los Alamos, NM 87545 USA. EM mewall@lanl.gov OI Alexandrov, Ludmil/0000-0003-3596-4515 FU US Department of Energy through the Laboratory-Directed Research and Development Program at Los Alamos National Laboratory [DE-AC52-06NA25396] FX This study was supported by the US Department of Energy under Contract DE-AC52-06NA25396 through the Laboratory-Directed Research and Development Program at Los Alamos National Laboratory. NR 54 TC 0 Z9 0 U1 5 U2 7 PU INT UNION CRYSTALLOGRAPHY PI CHESTER PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND SN 2052-2525 J9 IUCRJ JI IUCrJ PD JUL PY 2016 VL 3 BP 237 EP 246 DI 10.1107/S2052252516006242 PN 4 PG 10 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA DR0LQ UT WOS:000379599400005 PM 27437111 ER PT J AU Piepel, GF Kaiser, BLD Amidan, BG Sydor, MA Barrett, CA Hutchison, JR AF Piepel, G. F. Kaiser, B. L. Deatherage Amidan, B. G. Sydor, M. A. Barrett, C. A. Hutchison, J. R. TI False-negative rate, limit of detection and recovery efficiency performance of a validated macrofoam-swab sampling method for low surface concentrations of Bacillus anthracis Sterne and Bacillus atrophaeus spores SO JOURNAL OF APPLIED MICROBIOLOGY LA English DT Article DE Bacillus spores; false-negative rate; limit of detection; microbial contamination; recovery efficiency ID NONPOROUS SURFACES; COLLECTION METHOD; PROTOCOL; HYDROPHOBICITY; CONTAMINATION AB AimsWe sought to evaluate the effects of Bacillus species, low surface concentrations, and surface material on recovery efficiency (RE), false-negative rate (FNR) and limit of detection for recovering Bacillus spores using a validated macrofoam-swab sampling procedure. Methods and ResultsThe performance of a macrofoam-swab sampling method was evaluated using Bacillus anthracis Sterne (BAS) and Bacillus atrophaeus Nakamura (BG) spores applied at nine low target surface concentrations (2 to 500CFU per plate or coupon) to positive-control plates and test coupons (258064cm(2)) of four surface materials (glass, stainless steel, vinyl tile and plastic). The Bacillus species and surface material had statistically significant effects on RE, but surface concentration did not. Mean REs were the lowest for vinyl tile (508% with BAS and 402% with BG) and the highest for glass (928% with BAS and 714% with BG). FNR values (which ranged from 0 to 0833 for BAS and from 0 to 0806 for BG) increased as surface concentration decreased in the range tested. Surface material also had a statistically significant effect on FNR, with FNR the lowest for glass and highest for vinyl tile. Finally, FNR tended to be higher for BG than for BAS at lower surface concentrations, especially for glass. ConclusionsConcentration and surface material had significant effects on FNR, with Bacillus species having a small effect. Species and surface material had significant effects on RE, with surface concentration having a nonsignificant effect. Significance and Impact of the StudyThe results provide valuable information on the performance of the macrofoam-swab method for low surface concentrations of Bacillus spores, which can be adapted to assess the likelihood that there is no contamination when all macrofoam-swab samples fail to detect B.anthracis. C1 [Piepel, G. F.; Amidan, B. G.] Pacific Northwest Natl Lab, Appl Stat & Computat Sci, Richland, WA USA. [Kaiser, B. L. Deatherage; Sydor, M. A.; Hutchison, J. R.] Pacific Northwest Natl Lab, Chem & Biol Signature Sci Grp, Richland, WA USA. [Barrett, C. A.] Pacific Northwest Natl Lab, Analyt Chem Nucl Mat, Richland, WA USA. RP Hutchison, JR (reprint author), Pacific Northwest Natl Lab, 902 Battelle Blvd,POB 999,MSIN P7-50, Richland, WA 99352 USA. EM janine.hutchison@pnnl.gov FU Chemical and Biological Research and Development Branch of the Chemical and Biological Division in the Science and Technology Directorate of the Department of Homeland Security (DHS); U.S. Department of Energy [DE-AC05-76RL01830] FX The Pacific Northwest National Laboratory (PNNL) work was funded by the Chemical and Biological Research and Development Branch of the Chemical and Biological Division in the Science and Technology Directorate of the Department of Homeland Security (DHS). The input, support and reviews provided by members of the Validated Sampling Plan Working Group (VSPWG) are also acknowledged. The intra-agency VSPWG includes representatives from DHS, the Environmental Protection Agency and the CDC. PNNL is a multiprogram national laboratory operated for the U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830. NR 41 TC 0 Z9 0 U1 3 U2 3 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1364-5072 EI 1365-2672 J9 J APPL MICROBIOL JI J. Appl. Microbiol. PD JUL PY 2016 VL 121 IS 1 BP 149 EP 162 DI 10.1111/jam.13128 PG 14 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA DQ9NA UT WOS:000379535400013 PM 26972788 ER PT J AU Revetta, RP Gomez-Alvarez, V Gerke, TL Domingo, JW Ashbolt, NJ AF Revetta, R. P. Gomez-Alvarez, V. Gerke, T. L. Santo Domingo, J. W. Ashbolt, N. J. TI Changes in bacterial composition of biofilm in a metropolitan drinking water distribution system SO JOURNAL OF APPLIED MICROBIOLOGY LA English DT Article DE biofilm; drinking water; drinking water distribution system; groundwater; microbial structure; surface water ID NONTUBERCULOUS MYCOBACTERIA; MICROBIAL COMMUNITIES; DIVERSITY; RNA; 16S; CHLORINE; NETWORK; PATHOGENS; DYNAMICS; ECOLOGY AB AimsThis study examined the development of bacterial biofilms within a metropolitan distribution system. The distribution system is fed with different source water (i.e. groundwater, GW and surface water, SW) and undergoes different treatment processes in separate facilities. Methods and ResultsThe biofilm community was characterized using 16S rRNA gene clone libraries and functional potential analysis, generated from total DNA extracted from coupons in biofilm annular reactors fed with onsite drinking water for up to 18months. Differences in the bacterial community structure were observed between GW and SW. Representatives that explained the dissimilarity were associated with the classes Betaproteobacteria, Alphaproteobacteria, Actinobacteria, Gammaproteobacteria and Firmicutes. After 9months the biofilm bacterial community from both GW and SW were dominated by Mycobacterium species. The distribution of the dominant operational taxonomic unit (OTU) (Mycobacterium) positively correlated with the drinking water distribution system (DWDS) temperature. ConclusionsIn this study, the biofilm community structure observed between GW and SW were dissimilar, while communities from different locations receiving SW did not show significant differences. The results suggest that source water and/or the water quality shaped by their respective treatment processes may play an important role in shaping the bacterial communities in the distribution system. In addition, several bacterial groups were present in all samples, suggesting that they are an integral part of the core microbiota of this DWDS. Significance and Impact of the StudyThese results provide an ecological insight into biofilm bacterial structure in chlorine-treated drinking water influenced by different water sources and their respective treatment processes. C1 [Revetta, R. P.; Gomez-Alvarez, V.; Santo Domingo, J. W.; Ashbolt, N. J.] US EPA, Cincinnati, OH 45268 USA. [Gerke, T. L.] US EPA, ORISE, Cincinnati, OH 45268 USA. [Ashbolt, N. J.] Univ Alberta, Edmonton, AB, Canada. RP Revetta, RP (reprint author), ORD NRMRL WSWRD, MS681,26 West MLK Dr, Cincinnati, OH USA. EM revetta.randy@epa.gov FU US EPA through the Office of Research and Development FX The authors thank Jeff Swertfeger, David Hartman and Bill Fromme (Greater Cincinnati Water Works) for valuable discussions and suggestions during the planning process, and for assistance in obtaining water quality data and sample access. The US EPA through the Office of Research and Development funded and managed this research. The opinions expressed are those of the authors, and do not necessarily reflect the official positions and policies of the US EPA. Any mention of product or trade names does not constitute recommendation for use by the US EPA. NR 52 TC 1 Z9 1 U1 12 U2 20 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1364-5072 EI 1365-2672 J9 J APPL MICROBIOL JI J. Appl. Microbiol. PD JUL PY 2016 VL 121 IS 1 BP 294 EP 305 DI 10.1111/jam.13150 PG 12 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA DQ9NA UT WOS:000379535400026 PM 27037969 ER PT J AU Negre, CFA Mniszewski, SM Cawkwell, MJ Bock, N Wall, ME Niklasson, AMN AF Negre, Christian F. A. Mniszewski, Susan M. Cawkwell, Marc J. Bock, Nicolas Wall, Michael E. Niklasson, Anders M. N. TI Recursive Factorization of the Inverse Overlap Matrix in Linear Scaling Quantum Molecular Dynamics Simulations SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION LA English DT Article ID ELECTRONIC-STRUCTURE CALCULATIONS; TIGHT-BINDING METHOD; DENSITY-MATRIX; 1ST PRINCIPLES; SOLIDS; FORMULATION AB We present a reduced complexity algorithm to compute the inverse overlap factors required to solve the generalized eigenvalue problem in a quantum-based molecular dynamics (MD) simulation. Our method is based on the recursive, iterative refinement of an initial guess of Z (inverse square root of the overlap matrix S). The initial guess of Z is obtained beforehand by using either an approximate divide-and-conquer technique or dynamical methods, propagated within an extended Lagrangian dynamics from previous MD time steps. With this formulation, we achieve long-term stability and energy conservation even under the incomplete, approximate, iterative refinement of Z. Linear-scaling performance is obtained using numerically thresholded sparse matrix algebra based on the ELLPACK-R sparse matrix data format, which also enables efficient shared-memory parallelization. As we show in this article using self-consistent density-functional-based tight-binding MD, our approach is faster than conventional methods based on the diagonalization of overlap matrix S for systems as small as a few hundred atoms, substantially accelerating quantum-based simulations even for molecular structures of intermediate size. For a 4158-atom water-solvated polyalanine system, we find an average speedup factor of 122 for the computation of Z in each MD step. C1 [Negre, Christian F. A.; Cawkwell, Marc J.; Bock, Nicolas; Niklasson, Anders M. N.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Mniszewski, Susan M.; Wall, Michael E.] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM 87545 USA. RP Negre, CFA; Niklasson, AMN (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM cnegre@lanl.gov; amn@lanl.gov NR 50 TC 1 Z9 1 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1549-9618 EI 1549-9626 J9 J CHEM THEORY COMPUT JI J. Chem. Theory Comput. PD JUL PY 2016 VL 12 IS 7 BP 3063 EP 3073 DI 10.1021/acs.jac.6b00154 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DR1ZG UT WOS:000379703800007 PM 27267207 ER PT J AU Sawaya, NPD Smelyanskiy, M McClean, JR Aspuru-Guzik, A AF Sawaya, Nicolas P. D. Smelyanskiy, Mikhail McClean, Jarrod R. Aspuru-Guzik, Alan TI Error Sensitivity to Environmental Noise in Quantum Circuits for Chemical State Preparation SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION LA English DT Article ID REDUCED DENSITY-MATRICES; TENSOR PROPAGATOR; TIME EVOLUTION; COMPUTATION; ALGORITHMS; CHEMISTRY AB Calculating molecular energies is likely to be one of the first useful applications to achieve quantum supremacy, performing faster on a quantum than a classical computer. However, if future quantum devices are to produce accurate calculations, errors due to environmental noise and algorithmic approximations need to be characterized and reduced. In this study, we use the high performance qHiPSTER software to investigate the effects of environmental noise on the preparation of quantum chemistry states. We simulated 18 16-qubit quantum circuits under environmental noise, each corresponding to a unitary coupled cluster state preparation of a different molecule or molecular configuration. Additionally, we analyze the nature of simple gate errors in noise-free circuits of up to 40 qubits. We find that, in most cases, the Jordan-Wigner (JW) encoding produces smaller errors under a noisy environment as compared to the Bravyi-Kitaev (BK) encoding. For the JW encoding, pure dephasing noise is shown to produce substantially smaller errors than pure relaxation noise of the same magnitude. We report error trends in both molecular energy and electron particle number within a unitary coupled cluster state preparation scheme, against changes in nuclear charge, bond length, number of electrons, noise types, and noise magnitude. These trends may prove to be useful in making algorithmic and hardware-related choices for quantum simulation of molecular energies. C1 [Sawaya, Nicolas P. D.; Aspuru-Guzik, Alan] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA. [Sawaya, Nicolas P. D.; Smelyanskiy, Mikhail] Intel Corp, Parallel Comp Lab, Santa Clara, CA 95054 USA. [McClean, Jarrod R.] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Aspuru-Guzik, A (reprint author), Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA. EM aspuru@chemistry.harvard.edu NR 52 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1549-9618 EI 1549-9626 J9 J CHEM THEORY COMPUT JI J. Chem. Theory Comput. PD JUL PY 2016 VL 12 IS 7 BP 3097 EP 3108 DI 10.1021/acs.jctc.6b00220 PG 12 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DR1ZG UT WOS:000379703800010 PM 27254482 ER PT J AU Neuscamman, E AF Neuscamman, Eric TI Improved Optimization for the Cluster Jastrow Antisymmetric Geminal Power and Tests on Triple-Bond Dissociations SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION LA English DT Article ID CONFIGURATION-INTERACTION METHOD; STRONGLY ORTHOGONAL GEMINALS; MOLECULAR-ORBITAL METHODS; COUPLED-CLUSTER; WAVE-FUNCTION; QUANTUM-CHEMISTRY; MODEL CHEMISTRY; ELECTRONIC-STRUCTURE; PERTURBATION-THEORY; MEAN-FIELD AB We present a novel specialization of the variational Monte Carlo linear method for the optimization of the recently introduced cluster Jastrow antisymmetric geminal power ansatz, achieving a lower-order polynomial cost scaling than would be possible with a naive application of the linear method and greatly improving optimization performance relative to that of the previously employed quasi-Newton approach. We test the methodology on highly multireference triple-bond stretches, achieving accuracy superior to those of the traditional coupled cluster theory and multireference perturbation theory in both the typical example of N-2 and the transition-metal-oxide example of [ScO](+). C1 [Neuscamman, Eric] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Neuscamman, Eric] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Neuscamman, E (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Neuscamman, E (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM eneuscamman@berkeley.edu NR 76 TC 4 Z9 4 U1 3 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1549-9618 EI 1549-9626 J9 J CHEM THEORY COMPUT JI J. Chem. Theory Comput. PD JUL PY 2016 VL 12 IS 7 BP 3149 EP 3159 DI 10.1021/acs.jctc.6b00288 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DR1ZG UT WOS:000379703800014 PM 27281678 ER PT J AU Lehtola, S Head-Gordon, M Jonsson, H AF Lehtola, Susi Head-Gordon, Martin Jonsson, Hannes TI Complex Orbitals, Multiple Local Minima, and Symmetry Breaking in Perdew-Zunger Self-Interaction Corrected Density Functional Theory Calculations SO JOURNAL OF CHEMICAL THEORY AND COMPUTATION LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; EXCHANGE-CORRELATION FUNCTIONALS; ELECTRONIC-ENERGY BANDS; INTERACTION ERROR; THEORETICAL METHODS; COUPLED-CLUSTER; AB-INITIO; ACCURATE; MOLECULES; SYSTEMS AB Implentation of seminumerical stability analysis for calculations using the PerdewZunger self-interaction correction is described. It is shown that real-valued solutions of the PerdewZunger equations for gas phase atoms are unstable with respect to imaginary orbital rotations, confirming that a proper implementation of the correction requires complex-valued orbitals. The orbital density dependence of the self-interaction corrected functional is found to lead to multiple local minima in the case of the acrylic acid, H-6, and benzene molecules. In the case of benzene, symmetry breaking that results in incorrect ground state geometry is found to occur, erroneously leading to alternating bond lengths in the molecule. C1 [Lehtola, Susi; Head-Gordon, Martin] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Head-Gordon, Martin] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Jonsson, Hannes] Univ Iceland, Fac Phys Sci, IS-107 Reykjavik, Iceland. [Jonsson, Hannes] Aalto Univ, Sch Sci, Dept Appl Phys, POB 11000, FI-00076 Espoo, Finland. RP Lehtola, S (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM susi.lehtola@alumni.helsinki.fi RI Lehtola, Susi/H-1828-2013; Jonsson, Hannes/G-2267-2013 OI Lehtola, Susi/0000-0001-6296-8103; Jonsson, Hannes/0000-0001-8285-5421 NR 124 TC 4 Z9 4 U1 4 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1549-9618 EI 1549-9626 J9 J CHEM THEORY COMPUT JI J. Chem. Theory Comput. PD JUL PY 2016 VL 12 IS 7 BP 3195 EP 3207 DI 10.1021/acs.jctc.6b00347 PG 13 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DR1ZG UT WOS:000379703800018 PM 27232582 ER PT J AU Breault, RW Yarrington, CS Weber, JM AF Breault, Ronald W. Yarrington, Cory S. Weber, Justin M. TI The Effect of Thermal Treatment of Hematite Ore for Chemical Looping Combustion of Methane SO JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 40th International Technical Conference on Clean Coal and Fuel Systems CY MAY 31-JUN 04, 2015 CL Clearwater, FL ID IRON-OXIDE; ALPHA-FE2O3(0001); REDUCTION; OXIDATION; SURFACE AB For chemical looping processes to become an economically viable technology, an inexpensive carrier that can endure repeated reduction and oxidation cycles needs to be identified or developed. Unfortunately, the reduction of hematite ore with methane in both batch and fluidized beds has revealed that the performance (methane conversion) decreases with time. Previous analysis had shown that the grains within the particle grew with the net effect of reducing the surface area of the particles and thereby reducing the rate and net conversion for a fixed reduction time. To improve the lifespan of hematite ore, it is hypothesized that if the grain size could be stabilized, then the conversion could be stabilized. In this work, series of tests were conducted in an electrically heated fluidized bed. The hematite ore was first pretreated at a temperature higher than the subsequent reduction temperatures. After pretreatment, the hematite ore was subjected to a series of cyclic reduction/oxidation experiments. The results show that the ore can be stabilized for cycles at different conditions up to the pretreatment temperature without any degradation. Details of the pretreatment process and the test results will be presented. C1 [Breault, Ronald W.; Yarrington, Cory S.; Weber, Justin M.] US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, 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 NR 25 TC 1 Z9 1 U1 8 U2 13 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0195-0738 J9 J ENERG RESOUR-ASME JI J. Energy Resour. Technol.-Trans. ASME PD JUL PY 2016 VL 138 IS 4 SI SI AR 042202 DI 10.1115/1.4032018 PG 8 WC Energy & Fuels SC Energy & Fuels GA DR0IA UT WOS:000379590000005 ER PT J AU Schilling, O Livescu, D Prestridge, KP Ramaprabhu, P AF Schilling, Oleg Livescu, Daniel Prestridge, Katherine P. Ramaprabhu, Praveen TI SPECIAL SECTION: THE 14TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF COMPRESSIBLE TURBULENT MIXING SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Editorial Material C1 [Schilling, Oleg] Lawrence Livermore Natl Lab, Design Phys Div, Livermore, CA 94550 USA. [Livescu, Daniel] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM 87545 USA. [Prestridge, Katherine P.] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA. [Ramaprabhu, Praveen] Univ N Carolina, Mech Engn & Engn Sci, Charlotte, NC 28223 USA. RP Schilling, O (reprint author), Lawrence Livermore Natl Lab, Design Phys Div, Livermore, CA 94550 USA. RI Prestridge, Kathy/C-1137-2012; OI Prestridge, Kathy/0000-0003-2425-5086; Schilling, Oleg/0000-0002-0623-2940 NR 0 TC 0 Z9 0 U1 0 U2 1 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 EI 1528-901X J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD JUL PY 2016 VL 138 IS 7 AR 070301 PG 1 WC Engineering, Mechanical SC Engineering GA DR0OE UT WOS:000379606000001 ER PT J AU Shimony, A Shvarts, D Malamud, G Di Stefano, CA Kuranz, CC Drake, RP AF Shimony, Assaf Shvarts, Dov Malamud, Guy Di Stefano, Carlos A. Kuranz, Carolyn C. Drake, R. P. TI The Effect of a Dominant Initial Single Mode on the Kelvin-Helmholtz Instability Evolution: New Insights on Previous Experimental Results SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article AB This paper brings new insights on an experiment, measuring the Kelvin-Helmholtz (KH) instability evolution, performed on the OMEGA-60 laser facility. Experimental radiographs show that the initial seed perturbations in the experiment are of multimode spectrum with a dominant single-mode of 16 mu m wavelength. In single-mode-dominated KH instability flows, the mixing zone (MZ) width saturates to a constant value comparable to the wavelength. However, the experimental MZ width at late times has exceeded 100 mu m, an order of magnitude larger. In this work, we use numerical simulations and a statistical model in order to investigate the vortex dynamics of the KH instability for the experimental initial spectrum. We conclude that the KH instability evolution in the experiment is dominated by multimode, vortex-merger dynamics, overcoming the dominant initial mode. C1 [Shimony, Assaf; Shvarts, Dov; Malamud, Guy] NRCN, Dept Phys, IL-84190 Beer Sheva, Israel. [Shimony, Assaf] BGU, Dept Phys, IL-84015 Beer Sheva, Israel. [Shvarts, Dov; Malamud, Guy; Di Stefano, Carlos A.; Kuranz, Carolyn C.; Drake, R. P.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. [Di Stefano, Carlos A.] Los Alamos Natl Lab, Los Alamos, NM 87507 USA. RP Shimony, A (reprint author), NRCN, Dept Phys, IL-84190 Beer Sheva, Israel.; Shimony, A (reprint author), BGU, Dept Phys, IL-84015 Beer Sheva, Israel. EM shimonya@gmail.com NR 16 TC 0 Z9 0 U1 4 U2 5 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 EI 1528-901X J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD JUL PY 2016 VL 138 IS 7 AR 070902 DI 10.1115/1.4032530 PG 7 WC Engineering, Mechanical SC Engineering GA DR0OE UT WOS:000379606000003 ER PT J AU Wilson, BM Mejia-Alvarez, R Prestridge, KP AF Wilson, B. M. Mejia-Alvarez, R. Prestridge, K. P. TI Single-Interface Richtmyer-Meshkov Turbulent Mixing at the Los Alamos Vertical Shock Tube SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article ID INSTABILITY; ACCELERATION; DEPENDENCE; TRANSITION; MECHANISMS; DIFFUSION; MIXTURES; VELOCITY; FLOW AB Mach number and initial conditions effects on Richtmyer-Meshkov (RM) mixing are studied by the vertical shock tube (VST) at Los Alamos National Laboratory (LANL). At the VST, a perturbed stable light-to-heavy (air-SF6, A = 0.64) interface is impulsively accelerated with a shock wave to induce RM mixing. We investigate changes to both large and small scales of mixing caused by changing the incident Mach number (Ma = 1.3 and 1.45) and the three-dimensional (3D) perturbations on the interface. Simultaneous density (quantitative planar laser-induced fluorescence (PLIF)) and velocity (particle image velocimetry (PIV)) measurements are used to characterize preshock initial conditions and the dynamic shocked interface. Initial conditions and fluid properties are characterized before shock. Using two types of dynamic measurements, time series (N = 5 realizations at ten locations) and statistics (N = 100 realizations at a single location) of the density and velocity fields, we calculate several mixing quantities. Mix width, density-specific volume correlations, density-vorticity correlations, vorticity, enstrophy, strain, and instantaneous dissipation rate are examined at one downstream location. Results indicate that large-scale mixing, such as the mix width, is strongly dependent on Mach number, whereas small scales are strongly influenced by initial conditions. The enstrophy and strain show focused mixing activity in the spike regions. C1 [Wilson, B. M.; Mejia-Alvarez, R.; Prestridge, K. P.] Los Alamos Natl Lab, Div Phys, P-23, Los Alamos, NM 87545 USA. RP Wilson, BM (reprint author), Los Alamos Natl Lab, Div Phys, P-23, Los Alamos, NM 87545 USA. EM bwilson@lanl.gov; rimejal@lanl.gov; kpp@lanl.gov RI Prestridge, Kathy/C-1137-2012 OI Prestridge, Kathy/0000-0003-2425-5086 NR 27 TC 0 Z9 0 U1 8 U2 8 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 EI 1528-901X J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD JUL PY 2016 VL 138 IS 7 AR 070901 DI 10.1115/1.4032529 PG 9 WC Engineering, Mechanical SC Engineering GA DR0OE UT WOS:000379606000002 ER PT J AU Zhou, Y Thornber, B AF Zhou, Ye Thornber, Ben TI A Comparison of Three Approaches to Compute the Effective Reynolds Number of the Implicit Large-Eddy Simulations SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article ID RICHTMYER-MESHKOV INSTABILITIES; NUMERICAL DISSIPATION RATE; LARGE-SCALE STRUCTURE; TURBULENT FLOWS; ISOTROPIC TURBULENCE; RAYLEIGH-TAYLOR; ENERGY-TRANSFER; MACH NUMBER; VISCOSITY; DRIVEN AB The implicit large-eddy simulation (ILES) has been utilized as an effective approach for calculating many complex flows at high Reynolds number flows. Richtmyer-Meshkov instability (RMI) induced flow can be viewed as a homogeneous decaying turbulence (HDT) after the passage of the shock. In this article, a critical evaluation of three methods for estimating the effective Reynolds number and the effective kinematic viscosity is undertaken utilizing high-resolution ILES data. Effective Reynolds numbers based on the vorticity and dissipation rate, or the integral and inner-viscous length scales, are found to be the most self-consistent when compared to the expected phenomenology and wind tunnel experiments. C1 [Zhou, Ye] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Thornber, Ben] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia. RP Zhou, Y (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. OI Thornber, Ben/0000-0002-7665-089X FU Lawrence Livermore National Security, LLC [DE-AC52-07NA27344]; Australian Research Council [DP150101059] FX This work was performed under the auspices of the Lawrence Livermore National Security, LLC under Contract No. DE-AC52-07NA27344. This research was supported under Australian Research Council's Discovery Projects funding scheme (Project No. DP150101059). The authors would like to acknowledge the computational resources at the National Computational Infrastructure through the National Computational Merit Allocation Scheme, which were employed for all cases presented here. NR 59 TC 0 Z9 0 U1 2 U2 3 PU ASME PI NEW YORK PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 EI 1528-901X J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD JUL PY 2016 VL 138 IS 7 AR 070905 DI 10.1115/1.4032532 PG 7 WC Engineering, Mechanical SC Engineering GA DR0OE UT WOS:000379606000006 ER PT J AU Pham, VT Fulton, JL AF Van-Thai Pham Fulton, John L. TI High-resolution Measurement of Contact Ion-pair Structures in Aqueous RbCl Solutions from the Simultaneous Corefinement of their Rb and Cl K-edge XAFS and XRD Spectra SO JOURNAL OF SOLUTION CHEMISTRY LA English DT Article DE XADSR; EXAFS; XRD; Ion-pair; Aqueous RbCl; Ion hydration ID HYDRATION; ELECTROLYTES; SPECTROSCOPY; DIFFRACTION; ASSOCIATION; AMBIENT; EXAFS; WATER AB In concentrated solutions of aqueous RbCl, all of the Rb+ and Cl- ions exist as contact ion pairs. This full structural assessment is derived from the refinement of three independent experimental measurements: the Rb and Cl K-edge X-ray absorption fine structure (XAFS) and the X-ray diffraction spectra (XRD). This simultaneous refinement of the XAFS and XRD data provides high accuracy since each method probes the structure of different local regions about the ions with high sensitivity. At high RbCl concentration (6 mol center dot kg(-1)) the solution is dominated by Rb+-Cl- contact ion pairs yielding an average of 1.5 pairs at an Rb-Cl distance of 3.24 . Upon formation of these ion pairs, approximately 1.1 waters molecules are displaced from the Rb+ and 1.4 water molecules from Cl-. The hydration shells about both the cation and anion are also determined. These results greatly improve the understanding of monovalent ions and provide a basis for testing the Rb+-Cl- interaction potentials used in molecular dynamics (MD) simulation. C1 [Van-Thai Pham] Vietnam Acad Sci & Technol, Inst Phys, Ctr Quantum Elect, POB 429, Hanoi 10000, Vietnam. [Van-Thai Pham] Synchrotron SOLEIL, BP48, F-91192 Gif Sur Yvette, France. [Fulton, John L.] Pacific Northwest Natl Lab, Div Phys Sci, Richland, WA 99354 USA. RP Pham, VT (reprint author), Vietnam Acad Sci & Technol, Inst Phys, Ctr Quantum Elect, POB 429, Hanoi 10000, Vietnam.; Pham, VT (reprint author), Synchrotron SOLEIL, BP48, F-91192 Gif Sur Yvette, France. EM pvthai@iop.vast.ac.vn; john.fulton@pnnl.gov FU Vietnam National Foundation for Science and Technology Development (NAFOSTED) [103.99-2013.19]; US Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences Biosciences; DOE/BES; Canadian Light Source; University of Washington; Advanced Photon Source; DOE [DE-AC02-06CH11357] FX VTP was supported by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) under Grant Number 103.99-2013.19. Work by JLF was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle. The PNC/XSD facilities at the Advanced Photon Source, and research at these facilities, are supported by DOE/BES, the Canadian Light Source and its funding partners, the University of Washington, and the Advanced Photon Source. Use of the Advanced Photon Source, an Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory, was supported by the DOE under Contract No. DE-AC02-06CH11357. Dr. F. Baudelet is acknowledged for constructive discussion. NR 33 TC 0 Z9 0 U1 2 U2 4 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0095-9782 EI 1572-8927 J9 J SOLUTION CHEM JI J. Solut. Chem. PD JUL PY 2016 VL 45 IS 7 BP 1061 EP 1070 DI 10.1007/s10953-016-0487-5 PG 10 WC Chemistry, Physical SC Chemistry GA DQ8WP UT WOS:000379492600007 ER PT J AU Munoz-Esparza, D Sauer, JA Linn, RR Kosovic, B AF Munoz-Esparza, Domingo Sauer, Jeremy A. Linn, Rodman R. Kosovic, Branko TI Limitations of One-Dimensional Mesoscale PBL Parameterizations in Reproducing Mountain-Wave Flows SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID LARGE-EDDY SIMULATIONS; BOUNDARY-LAYER; TYRANNOSAURUS-REX; LEE WAVES; WRF MODEL; TURBULENCE; WIND; IMPROVEMENT; BREAKING; DRAG AB Mesoscale models are considered to be the state of the art in modeling mountain-wave flows. Herein, the authors investigate the role and accuracy of planetary boundary layer (PBL) parameterizations in handling the interaction between large-scale mountain waves and the atmospheric boundary layer. To that end, recent large-eddy simulation (LES) results of mountain waves over a symmetric two-dimensional bell-shaped hill are used and compared to four commonly used PBL schemes. It is found that one-dimensional PBL parameterizations produce reasonable agreement with the LES results in terms of vertical wavelength, amplitude of velocity, and turbulent kinetic energy distribution in the downhill shooting-flow region. However, the assumption of horizontal homogeneity in PBL parameterizations does not hold in the context of these complex flow configurations. This inappropriate modeling assumption results in a vertical wavelength shift, producing errors of approximately 10m s(-1) at downstream locations because of the presence of a coherent trapped lee wave that does not mix with the atmospheric boundary layer. In contrast, horizontally integrated momentum flux derived from these PBL schemes displays a realistic pattern. Therefore, results from mesoscale models using ensembles of one-dimensional PBL schemes can still potentially be used to parameterize drag effects in general circulation models. Nonetheless, three-dimensional PBL schemes must be developed in order for mesoscale models to accurately represent complex terrain and other types of flows where one-dimensional PBL assumptions are violated. C1 [Munoz-Esparza, Domingo; Sauer, Jeremy A.; Linn, Rodman R.] Los Alamos Natl Lab, Los Alamos, NM USA. [Kosovic, Branko] Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA. RP Munoz-Esparza, D (reprint author), Natl Ctr Atmospher Res, Res Applicat Lab, POB 3000, Boulder, CO 80307 USA. EM domingom@ucar.edu FU Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory [20130487ER]; U.S. Department of Energy National Nuclear Security Administration [DE-AC52-06NA25396] FX This research was supported by the Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory (20130487ER). This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract DE-AC52-06NA25396. NR 39 TC 3 Z9 3 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0022-4928 EI 1520-0469 J9 J ATMOS SCI JI J. Atmos. Sci. PD JUL PY 2016 VL 73 IS 7 BP 2603 EP 2614 DI 10.1175/JAS-D-15-0304.1 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DQ7PX UT WOS:000379400900002 ER PT J AU Sauer, JA Munoz-Esparza, D Canfield, JM Costigan, KR Linn, RR Kim, YJ AF Sauer, Jeremy A. Munoz-Esparza, Domingo Canfield, Jesse M. Costigan, Keeley R. Linn, Rodman R. Kim, Young-Joon TI A Large-Eddy Simulation Study of Atmospheric Boundary Layer Influence on Stratified Flows over Terrain SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID PAST 3-DIMENSIONAL OBSTACLES; WEATHER PREDICTION MODELS; WAVE-DRAG PARAMETRIZATION; MOUNTAIN-WAVE; DOWNSLOPE WINDSTORMS; SURFACE FRICTION; TURBULENCE; MESOSCALE; BREAKING; PREDICTABILITY AB The impact of atmospheric boundary layer (ABL) interactions with large-scale stably stratified flow over an isolated, two-dimensional hill is investigated using turbulence-resolving large-eddy simulations. The onset of internal gravity wave breaking and leeside flow response regimes of trapped lee waves and nonlinear breakdown (or hydraulic-jump-like state) as they depend on the classical inverse Froude number, Fr-1 = Nh/U-g, is explored in detail. Here, N is the Brunt-Vaisala frequency, h is the hill height, and U-g is the geostrophic wind. The results here demonstrate that the presence of a turbulent ABL influences mountain wave (MW) development in critical aspects, such as dissipation of trapped lee waves and amplified stagnation zone turbulence through Kelvin-Helmholtz instability. It is shown that the nature of interactions between the largescale flow and the ABL is better characterized by a proposed inverse compensated Froude number, Fr-c(-1) = N(h - zi)/U-g, where zi is the ABL height. In addition, it is found that the onset of the nonlinear-breakdown regime, Fr-c(-1) approximate to 1.0, is initiated when the vertical wavelength becomes comparable to the sufficiently energetic scales of turbulence in the stagnation zone and ABL, yielding an abrupt change in leeside flow response. Finally, energy spectra are presented in the context of MW flows, supporting the existence of a clear transition in leeside flow response, and illustrating two distinct energy distribution states for the trapped-lee-wave and the nonlinear-breakdown regimes. C1 [Sauer, Jeremy A.] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM USA. [Munoz-Esparza, Domingo] Natl Ctr Atmospher Res, Res Applicat Lab, POB 3000, Boulder, CO 80307 USA. [Canfield, Jesse M.] Los Alamos Natl Lab, Computat Phys Div, Los Alamos, NM USA. [Costigan, Keeley R.; Linn, Rodman R.; Kim, Young-Joon] Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM USA. RP Sauer, JA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA. EM jsauer@lanl.gov FU Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory [20130487ER]; U.S. Department of Energy National Nuclear Security Administration [DE-AC52-06NA25396] FX The majority of efforts presented here and in preparation of this manuscript were carried out during the postdoc tenures of JAS and DME in the Earth and Environmental Sciences Division at Los Alamos National Laboratory. This research was supported by the Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory (20130487ER). This research used resources provided by the Los Alamos National Laboratory Institutional Computing Program, which is supported by the U.S. Department of Energy National Nuclear Security Administration under Contract DE-AC52-06NA25396. The authors thank the three anonymous reviewers for their thorough and constructive suggestions to improve the manuscript. We would also like to thank Dr. Francois Pimont for his insightful advice regarding the large-scale pressure gradient force parameterization used in this work. NR 46 TC 1 Z9 1 U1 7 U2 10 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0022-4928 EI 1520-0469 J9 J ATMOS SCI JI J. Atmos. Sci. PD JUL PY 2016 VL 73 IS 7 BP 2615 EP 2632 DI 10.1175/JAS-D-15-0282.1 PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DQ7PX UT WOS:000379400900003 ER PT J AU Borja, LJ Zurch, M Pemmaraju, CD Schultze, M Ramasesha, K Gandman, A Prell, JS Prendergast, D Neumark, DM Leone, SR AF Borja, Lauren J. Zuerch, M. Pemmaraju, C. D. Schultze, Martin Ramasesha, Krupa Gandman, Andrey Prell, James S. Prendergast, David Neumark, Daniel M. Leone, Stephen R. TI Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales [Invited] SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID STRUCTURAL DYNAMICS; PHOTON-ECHOES; SPECTROSCOPY; ELECTRON; SEMICONDUCTORS; SILICON; PHONON; TRANSITIONS; OXIDES; CARRIER AB High-harmonic generation (HHG) produces ultrashort pulses of extreme ultraviolet radiation (XUV), which can be used for pump-probe transient absorption spectroscopy in metal oxides, semiconductors, and dielectrics. Femtosecond transient absorption on iron and cobalt oxides identifies ligand-to-metal charge transfer as the main spectroscopic transition, rather than metal-to-metal charge transfer or d-d transitions, upon photoexcitation in the visible. In silicon, attosecond transient absorption reveals that electrons tunnel into the conduction band from the valence band under strong-field excitation, to energies as high as 6 eV above the conduction band minimum. Extensions of these experiments to other semiconductors, such as germanium, and other transition metal oxides, such as vanadium dioxide, are discussed. Germanium is of particular interest because it should be possible to follow both electron and hole dynamics in a single measurement using transient XUV absorption. (C) 2016 Optical Society of America C1 [Borja, Lauren J.; Zuerch, M.; Schultze, Martin; Ramasesha, Krupa; Gandman, Andrey; Prell, James S.; Neumark, Daniel M.; Leone, Stephen R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Pemmaraju, C. D.; Prendergast, David] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. [Pemmaraju, C. D.; Neumark, Daniel M.; Leone, Stephen R.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Leone, Stephen R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Schultze, Martin] Ludwig Maximilians Univ Munchen, Fak Phys, Coulombwall 1, D-85748 Garching, Germany. [Ramasesha, Krupa] Sandia Natl Labs, Combust Res Facil, Mail Stop 9055, Livermore, CA 94551 USA. [Gandman, Andrey] Technion Israel Inst Technol, Inst Solid State, IL-32000 Haifa, Israel. [Prell, James S.] Univ Oregon, Dept Chem & Biochem, Eugene, OR 97403 USA. RP Leone, SR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Leone, SR (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.; Leone, SR (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM srl@berkeley.edu RI Zuerch, Michael/C-8945-2013; Neumark, Daniel/B-9551-2009 OI Neumark, Daniel/0000-0002-3762-9473 FU Army Research Office (ARO), Multidisciplinary University Research Initiative [WN911NF-14-1-0383]; Multidisciplinary University Research Initiatives from the Air Force Office of Scientific Research [FA9550-15-1-0037]; Air Force Office of Scientific Research (AFOSR) [FA9550-14-1-0154]; Humboldt Foundation; Office of Science (SC); Basic Energy Sciences (BES); U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; National Energy Research Scientific Computing Center (NERSC); Lawrence Berkeley National Laboratory; National Security Science and Engineering Faculty Fellowship (NSSEFF) [FA9550-10-1-0195]; W.M. Keck Foundation [DE-AC03-76SF00098]; National Science Foundation (NSF) [CHE-1361226]; Defense Advanced Research Projects Agency (DARPA) [W31P4Q1310017] FX Army Research Office (ARO), Multidisciplinary University Research Initiative (WN911NF-14-1-0383); Multidisciplinary University Research Initiatives from the Air Force Office of Scientific Research (FA9550-15-1-0037); Air Force Office of Scientific Research (AFOSR) (FA9550-14-1-0154); The Humboldt Foundation; Office of Science (SC); Basic Energy Sciences (BES); U.S. Department of Energy (DOE) (DE-AC02-05CH11231); National Energy Research Scientific Computing Center (NERSC); Lawrence Berkeley National Laboratory; National Security Science and Engineering Faculty Fellowship (NSSEFF) (FA9550-10-1-0195); W.M. Keck Foundation (DE-AC03-76SF00098); National Science Foundation (NSF) (CHE-1361226); Defense Advanced Research Projects Agency (DARPA) (W31P4Q1310017). NR 80 TC 3 Z9 3 U1 8 U2 20 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0740-3224 EI 1520-8540 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JUL 1 PY 2016 VL 33 IS 7 DI 10.1364/JOSAB.33.000C57 PG 8 WC Optics SC Optics GA DR2PT UT WOS:000379747100008 ER PT J AU Gehl, M Gibson, R Zandbergen, S Keiffer, P Sears, J Khitrova, G AF Gehl, Michael Gibson, Ricky Zandbergen, Sander Keiffer, Patrick Sears, Jasmine Khitrova, Galina TI Superconductivity in epitaxially grown self-assembled indium islands: progress towards hybrid superconductor/semiconductor optical sources [Invited] SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID SEMICONDUCTOR; SUPERCURRENT; JUNCTIONS; CIRCUITS; GRAPHENE; CURRENTS; DEVICES; ENERGY AB Currently, superconducting qubits lead the way in potential candidates for quantum computing. At the same time, transferring quantum information over long distances typically relies on the use of photons as the elementary qubit. Converting between stationary electronic qubits in superconducting systems and traveling photonic qubits is a challenging yet necessary goal for the interface of quantum computing and communication. One promising path to achieving this goal appears to be the integration of superconductivity with optically active semiconductors, with quantum information being transferred between the two by means of the superconducting proximity effect. Obtaining good interfaces between superconductors and semiconductors is the next obvious step for improving these hybrid systems. Here, we report on our observation of superconductivity in a 2.3 mu m diameter self-assembled indium structure grown epitaxially on the surface of a semiconductor material. (C) 2016 Optical Society of America C1 [Gehl, Michael; Gibson, Ricky; Zandbergen, Sander; Keiffer, Patrick; Sears, Jasmine; Khitrova, Galina] Univ Arizona, Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA. [Gehl, Michael] Sandia Natl Labs, Appl Photon Microsyst, POB 5800, Albuquerque, NM 87185 USA. RP Gehl, M (reprint author), Univ Arizona, Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA.; Gehl, M (reprint author), Sandia Natl Labs, Appl Photon Microsyst, POB 5800, Albuquerque, NM 87185 USA. EM mgehl@sandia.gov FU Air Force Office of Scientific Research (AFOSR) [FA9550-13-1-0003]; National Science Foundation (NSF) [1205031, 0812072]; U.S. Department of Defense (DOD); Arizona Technology and Research Initiative Funding (TRIF); U.S. Department of Energy (DOE) [DE-AC05-06OR23100] FX Air Force Office of Scientific Research (AFOSR) (FA9550-13-1-0003); National Science Foundation (NSF) (1205031, 0812072); U.S. Department of Defense (DOD); Arizona Technology and Research Initiative Funding (TRIF); U.S. Department of Energy (DOE) (DE-AC05-06OR23100). NR 45 TC 1 Z9 1 U1 3 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0740-3224 EI 1520-8540 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JUL 1 PY 2016 VL 33 IS 7 DI 10.1364/JOSAB.33.000C50 PG 7 WC Optics SC Optics GA DR2PT UT WOS:000379747100007 ER PT J AU Naumann, NL Droenner, L Chow, WW Kabuss, J Carmele, A AF Naumann, Nicolas L. Droenner, Leon Chow, Weng W. Kabuss, Julia Carmele, Alexander TI Solid-state-based analog of optomechanics SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID CAVITY OPTOMECHANICS; RADIATION-PRESSURE; QUANTUM DOTS; SINGLE AB We investigate a semiconductor quantum dot as a microscopic analog of a basic optomechanical setup. We show that optomechanical features can be reproduced by the solid-state platform, arising from parallels of the underlying interaction processes, which in the optomechanical case is the radiation pressure coupling and in the semiconductor case the electron-phonon coupling. We discuss bistabilities, lasing, and phonon damping, and recover the same qualitative behaviors for the semiconductor and the optomechanical cases expected for low driving strengths. However, in contrast to the optomechanical case, distinct signatures of higher order processes arise in the semiconductor model. (C) 2016 Optical Society of America C1 [Naumann, Nicolas L.; Droenner, Leon; Kabuss, Julia] Tech Univ Berlin, Inst Theoret Phys Nichtlineare Opt & Quantenelekt, Hardenbergstr 36, D-10623 Berlin, Germany. [Chow, Weng W.; Carmele, Alexander] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Naumann, NL (reprint author), Tech Univ Berlin, Inst Theoret Phys Nichtlineare Opt & Quantenelekt, Hardenbergstr 36, D-10623 Berlin, Germany. EM naumann@itp.tu-berlin.de FU Deutsche Forschungsgemeinschaft (DFG) [SFB 910, SFB 787]; Sandia Laboratory Directed Research and Development (LDRD); U.S. Department of Energy (DOE) [DE-AC04-94AL85000] FX Deutsche Forschungsgemeinschaft (DFG) (SFB 910, SFB 787); Sandia Laboratory Directed Research and Development (LDRD); U.S. Department of Energy (DOE) (DE-AC04-94AL85000). NR 44 TC 0 Z9 0 U1 2 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0740-3224 EI 1520-8540 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JUL 1 PY 2016 VL 33 IS 7 DI 10.1364/JOSAB.33.001492 PG 10 WC Optics SC Optics GA DR2PT UT WOS:000379747100043 ER PT J AU Yao, FR Tang, JY Wang, F Liu, KH AF Yao, Fengrui Tang, Jingyi Wang, Feng Liu, Kaihui TI Structure-property relations in individual carbon nanotubes [Invited] SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID THERMAL TRANSPORT; RAMAN-SCATTERING; YOUNGS MODULUS; SINGLE; SPECTROSCOPY; TRANSISTORS; CONDUCTIVITY; FLUORESCENCE; ELECTRONICS; RESONANCES AB After more than a quarter century's intense research and exploration for their distinctive physical properties and potential applications, carbon nanotubes remain an active research field with many surprises and opportunities. Recent advances in nano-optics provide a powerful tool to optically characterize carbon nanotubes with a defined chiral index at the single-nanotube level. Here we review our recent effort along this direction, including (1) combining transmission electron microscopy and single-nanotube optical spectroscopy to establish an atlas for carbon nanotube optical transitions and (2) developing a high-contrast polarization microscope for real-time optical imaging and in situ spectroscopy of individual nanotubes in devices. We will also discuss the importance of such characterizations for controlled nanotube growth and for understanding chirality-dependent device behaviors. (C) 2016 Optical Society of America C1 [Yao, Fengrui; Tang, Jingyi; Liu, Kaihui] Peking Univ, Sch Phys, Collaborat Innovat Ctr Quantum Matter, Ctr Nanochem,State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. [Wang, Feng] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Wang, Feng] Lawrence Berkeley Natl Lab, Adv Light Source Div, Berkeley, CA 94720 USA. [Wang, Feng] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Liu, KH (reprint author), Peking Univ, Sch Phys, Collaborat Innovat Ctr Quantum Matter, Ctr Nanochem,State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China.; Wang, F (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.; Wang, F (reprint author), Lawrence Berkeley Natl Lab, Adv Light Source Div, Berkeley, CA 94720 USA.; Wang, F (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM fengwang76@berkeley.edu; khliu@pku.edu.cn RI wang, Feng/I-5727-2015; Liu, Kaihui/A-9938-2014 FU National Science Foundation (NSF) [DMR-1404865]; National Natural Science Foundation of China (NSFC) [51522201, 11474006, 91433102] FX National Science Foundation (NSF) (DMR-1404865); National Natural Science Foundation of China (NSFC) (51522201, 11474006, 91433102). NR 65 TC 1 Z9 1 U1 10 U2 20 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0740-3224 EI 1520-8540 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JUL 1 PY 2016 VL 33 IS 7 AR C102 DI 10.1364/JOSAB.33.00C102 PG 6 WC Optics SC Optics GA DR2PT UT WOS:000379747100012 ER PT J AU Liu, F Huang, L Porter, LM Davis, RF Schreiber, DK AF Liu, Fang Huang, Li Porter, Lisa M. Davis, Robert F. Schreiber, Daniel K. TI Analysis of compositional uniformity in AlxGa1-xN thin films using atom probe tomography and electron microscopy SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A LA English DT Article ID MOLECULAR-BEAM EPITAXY; SPECIMEN PREPARATION; ANALYSIS DIRECTION; LAYERS; COMPLEX; ALLOYS AB Calculated frequency distributions of atom probe tomography reconstructions (similar to 80 nm field of view) of very thin AlxGa1-xN(0.18 <= x <= 0.51) films grown via metalorganic vapor phase epitaxy on both (0001) GaN/AlN/SiC and (0001) GaN/sapphire heterostructures revealed homogeneous concentrations of Al and chemically abrupt AlxGa1-xN/GaN interfaces. The results of scanning transmission electron microscopy and selected area diffraction corroborated these results and revealed that neither superlattice ordering nor phase separation was present at nanometer length scales. (C) 2016 American Vacuum Society. C1 [Liu, Fang; Huang, Li; Porter, Lisa M.; Davis, Robert F.] Carnegie Mellon Univ, Dept Mat Sci & Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA. [Schreiber, Daniel K.] Pacific Northwest Natl Lab, Energy & Environm Directorate, POB 999, Richland, WA 99352 USA. RP Davis, RF (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA. EM rfd@andrew.cmu.edu RI Davis, Robert/A-9376-2011 OI Davis, Robert/0000-0002-4437-0885 FU Department of Energy's (DOE) Office of Biological and Environmental Research; U.S. DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; [MCF-677785] FX A portion of the research was performed at the Environmental Molecular Science Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy's (DOE) Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). An alternate Sponsored Fellowship at PNNL awarded to one of the authors (F.L.) was particularly helpful in completing this research. D.K.S. acknowledges support from the U.S. DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering in preparing this manuscript. PNNL is a multiprogram national laboratory operated for DOE by Battelle. The authors also acknowledge use of the Materials Characterization Facility at CMU supported by Grant No. MCF-677785. NR 40 TC 0 Z9 0 U1 7 U2 7 PU A V S AMER INST PHYSICS PI MELVILLE PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA SN 0734-2101 EI 1520-8559 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A PD JUL PY 2016 VL 34 IS 4 AR 041510 DI 10.1116/1.4953410 PG 8 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA DR0HG UT WOS:000379588000028 ER PT J AU Provo, JL AF Provo, James L. TI Use of aluminum oxide as a permeation barrier for producing thin films on aluminum substrates SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A LA English DT Article ID ELECTRON-BEAM GUN; EVAPORATION CHARACTERISTICS; THICKNESS; SPECTROSCOPY; INTERFACE; DIFFUSION; CONTACTS; TITANIUM; SILICON; LAYERS AB Aluminum has desirable characteristics of good thermal properties, good electrical characteristics, good optical properties, and the characteristic of being nonmagnetic and having a low atomic weight (26.98 g atoms), but because of its low melting point (660 degrees C) and ability as a reactive metal to alloy with most common metals in use, it has been ignored as a substrate material for use in processing thin films. The author developed a simple solution to this problem, by putting a permeation barrier of alumina (Al2O3) onto the surface of pure Al substrates by using a standard chemical oxidation process of the surface (i.e., anodization), before additional film deposition of reactive metals at temperatures up to 500 degrees C for 1-h, without the formation of alloys or intermetallic compounds to affect the good properties of Al substrates. The chromic acid anodization process used (MIL-A-8625) produced a film barrier of similar to(500-1000) nm of alumina. The fact that refractory Al2O3 can inhibit the reaction of metals with Al at temperatures below 500 degrees C suggests that Al is a satisfactory substrate if properly oxidized prior to film deposition. To prove this concept, thin film samples of Cr, Mo, Er, Sc, Ti, and Zr were prepared on anodized Al substrates and studied by x-ray diffraction, Rutherford ion back scattering, and Auger/argon sputter surface profile analysis to determine any film substrate interactions. In addition, a major purpose of our study was to determine if ErD2 thin films could be produced on Al substrates with fully hydrided Er films. Thus, a thin film of ErD2 on an anodized Al substrate was prepared and studied, with and without the alumina permeation barrier. Films for study were prepared on 1.27 cm diameter Al substrates with similar to 500 nm of the metals studied after anodization. Substrates were weighed, cleaned, and vacuum fired at 500 degrees C prior to use. The Al substrates were deposited using standard electron beam cold crucible evaporation techniques, and after deposition the Er film was hydrided with D-2 gas using a standard nonair exposure hydriding technique. All processing was conducted in an all metal ion pumped ultrahigh vacuum system. Results showed that e-beam deposition of films studied onto Al substrates could be successfully performed, if a permeation barrier of Al2O3 from 500 to 1000 nm was made prior to thin film deposition up to temperatures of 500 degrees C for 1-h. Hydrides also, could be produced with full gas/metal atomic ratios of similar to 2.0 as evidenced by the ErD2 films produced. Thus, the use of a simple permeation barrier of Al2O3 on Al substrates prior to additional metal film deposition was proven to be a successful method of producing both thin metal films and hydride films of various types for many applications. (C) 2016 American Vacuum Society. C1 [Provo, James L.] JL Provo Consulting, Trinity, FL 34655 USA. [Provo, James L.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Provo, JL (reprint author), JL Provo Consulting, Trinity, FL 34655 USA. EM jlprovo@verizon.net FU U.S. Department of Energy [AT-(29-2)-656] FX The author wishes to thank D. M. Holloway (Deceased) of the General Electric Company, Largo, FL, and George Moore of Sandia National Laboratories, Albuquerque, NM, for the Auger/argon sputter profile surface oxide and depth profile measurements, R. Kuhnhardt (retired) of the General Electric Company, Largo, FL, and T. K. Mehrhoff (retired) of Sandia National Laboratories, Albuquerque, NM, for mass spectrometer analyses, R. J. Antepenko (retired) of Sandia National Laboratories, Albuquerque, NM, for metal analyses for determination of gas/metal atomic Ratios, L. E. Burkett (deceased), R. P. Gross (deceased), and T. Beal, Jr., for help with the processing studies, all previously with the General Electric Company, Largo, FL, and R. G. Muscat, for ion-beam analyses and x-ray diffraction analyses, and J. M. Harris for processing studies, all with Sandia National Laboratories, Albuquerque, NM. Also, the author is thankful to the U.S. Department of Energy, previously the U.S. Energy Research and Development Administration under Contract No. AT-(29-2)-656 to the General Electric Company at the Pinellas Plant, Largo, FL, for their support. NR 65 TC 0 Z9 0 U1 16 U2 20 PU A V S AMER INST PHYSICS PI MELVILLE PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA SN 0734-2101 EI 1520-8559 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A PD JUL PY 2016 VL 34 IS 4 AR 041503 DI 10.1116/1.4950884 PG 7 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA DR0HG UT WOS:000379588000021 ER PT J AU Falcucci, G Succi, S Montessori, A Melchionna, S Prestininzi, P Barroo, C Bell, DC Biener, MM Biener, J Zugic, B Kaxiras, E AF Falcucci, Giacomo Succi, Sauro Montessori, Andrea Melchionna, Simone Prestininzi, Pietro Barroo, Cedric Bell, David C. Biener, Monika M. Biener, Juergen Zugic, Branko Kaxiras, Efthimios TI Mapping reactive flow patterns in monolithic nanoporous catalysts SO MICROFLUIDICS AND NANOFLUIDICS LA English DT Article DE Catalysis; Nanomaterials; Nanoporous gold; Lattice Boltzmann method ID LATTICE BOLTZMANN SIMULATION; GOLD CATALYSTS; COMPLEX FLOWS; MODEL; HYDRODYNAMICS; OXIDATION; ALCOHOLS; EQUATION; FLUIDS; AU AB The development of high-efficiency porous catalyst membranes critically depends on our understanding of where the majority of the chemical conversions occur within the porous structure. This requires mapping of chemical reactions and mass transport inside the complex nanoscale architecture of porous catalyst membranes which is a multiscale problem in both the temporal and spatial domains. To address this problem, we developed a multiscale mass transport computational framework based on the lattice Boltzmann method that allows us to account for catalytic reactions at the gas-solid interface by introducing a new boundary condition. In good agreement with experiments, the simulations reveal that most catalytic reactions occur near the gas-flow facing side of the catalyst membrane if chemical reactions are fast compared to mass transport within the porous catalyst membrane. C1 [Falcucci, Giacomo] Univ Roma Tor Vergata, Dept Enterprise Engn Mario Lucertini, Via Politecn 1, I-00100 Rome, Italy. [Falcucci, Giacomo; Succi, Sauro; Barroo, Cedric; Bell, David C.; Kaxiras, Efthimios] Harvard Univ, John A Paulson Sch Engn & Appl Sci, 29 Oxford St, Cambridge, MA 02138 USA. [Succi, Sauro] CNR, Ist Applicaz Calcolo, Via Taurini 19, I-00159 Rome, Italy. [Montessori, Andrea; Prestininzi, Pietro] Univ Rome Roma Tre, Dept Engn, Via Vasca Navale 79, I-00141 Rome, Italy. [Melchionna, Simone] CNR, ISC, Via Taurini 19, I-00185 Rome, Italy. [Melchionna, Simone] Univ Roma La Sapienza, Dipt Phys, Ple A Moro 2, I-00185 Rome, Italy. [Bell, David C.] Ctr Nanoscale Syst, 11 Oxford St, Cambridge, MA 02138 USA. [Biener, Monika M.; Biener, Juergen] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. [Zugic, Branko] Harvard Univ, Dept Chem & Chem Biol, 12 Oxford St, Cambridge, MA 02138 USA. [Kaxiras, Efthimios] Harvard Univ, Dept Phys, 17 Oxford St, Cambridge, MA 02138 USA. RP Falcucci, G (reprint author), Univ Roma Tor Vergata, Dept Enterprise Engn Mario Lucertini, Via Politecn 1, I-00100 Rome, Italy.; Falcucci, G (reprint author), Harvard Univ, John A Paulson Sch Engn & Appl Sci, 29 Oxford St, Cambridge, MA 02138 USA. EM giacomo.falcucci@uniroma2.it OI Falcucci, Giacomo/0000-0001-6446-4697; Barroo, Cedric/0000-0002-3085-4934 FU Integrated Mesoscale Architectures for Sustainable Catalysis (IMASC) Energy Frontier Research Center (EFRC) of the Department of Energy, Basic Energy Sciences [DE-SC0012573]; U.S. Department of Energy by LLNL [DE-AC52-07NA27344]; Belgian American Educational Foundation (BAEF); Wallonie-Bruxelles International (Excellence Grant WBI. WORLD) foundations FX This work is supported by the Integrated Mesoscale Architectures for Sustainable Catalysis (IMASC) Energy Frontier Research Center (EFRC) of the Department of Energy, Basic Energy Sciences, Award DE-SC0012573. Work at LLNL was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344. We thank the Research Computing group of the Faculty of Arts and Sciences, Harvard University, for computational resources and support. We thank Prof. Elio Jannelli, G. Di Staso and members of the IMASC EFRC, C. M. Friend, R. J. Madix, M. Flytzani-Stephanopoulos, for many valuable discussions. C. B. acknowledges postdoctoral fellowships through the Belgian American Educational Foundation (BAEF) as well as Wallonie-Bruxelles International (Excellence Grant WBI. WORLD) foundations. NR 47 TC 2 Z9 2 U1 8 U2 12 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1613-4982 EI 1613-4990 J9 MICROFLUID NANOFLUID JI Microfluid. Nanofluid. PD JUL PY 2016 VL 20 IS 7 AR 105 DI 10.1007/s10404-016-1767-5 PG 13 WC Nanoscience & Nanotechnology; Instruments & Instrumentation; Physics, Fluids & Plasmas SC Science & Technology - Other Topics; Instruments & Instrumentation; Physics GA DQ8ZJ UT WOS:000379499900011 ER PT J AU Tran, IC Tunuguntla, RH Kim, K Lee, JRI Willey, TM Weiss, TM Noy, A van Buuren, T AF Tran, Ich C. Tunuguntla, Ramya H. Kim, Kyunghoon Lee, Jonathan R. I. Willey, Trevor M. Weiss, Thomas M. Noy, Aleksandr van Buuren, Tony TI Structure of Carbon Nanotube Porins in Lipid Bilayers: An in Situ Small-Angle X-ray Scattering (SAXS) Study SO NANO LETTERS LA English DT Article DE Phospholipid; small-angle X-ray scattering (SAXS); carbon nanotube; porins ID NEUTRON-SCATTERING; DRUG-DELIVERY; PHOSPHOLIPID-BILAYERS; SPONTANEOUS INSERTION; GENE DELIVERY; PLASMID DNA; MEMBRANES; SURFACTANTS; CELLS; WATER AB Carbon nanotube porins (CNTPs), small segments of carbon nanotubes capable of forming defined pores in lipid membranes, are important future components for bionanoelectronic devices as they could provide a robust analog of biological membrane channels. In order to control the incorporation of these CNT channels into lipid bilayers, it is important to understand the structure of the CNTPs before and after insertion into the lipid bilayer as well as the impact of such insertion on the bilayer structure. Here we employed a noninvasive in situ probe, small-angle X-ray scattering, to study the integration of CNT porins into dioleoylphosphatidylcholine bilayers. Our results show that CNTPs in solution are stabilized by a monolayer of lipid molecules wrapped around their outer surface. We also demonstrate that insertion of CNTPs into the lipid bilayer results in decreased bilayer thickness with the magnitude of this effect increasing with the concentration of CNTPs. C1 [Tran, Ich C.; Tunuguntla, Ramya H.; Kim, Kyunghoon; Lee, Jonathan R. I.; Willey, Trevor M.; Weiss, Thomas M.; van Buuren, Tony] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA. [Weiss, Thomas M.] SLAC Natl Accelerator Ctr, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. [Tran, Ich C.] Univ Calif Irvine, Irvine Mat Res Inst, Irvine, CA 92697 USA. [Kim, Kyunghoon] Sungkyunkwan Univ, Sch Mech Engn, Seoul, South Korea. RP van Buuren, T (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA. EM vanbuuren1@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [SCW0972]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]; DOE Office of Biological and Environmental Research; National Institutes of Health, National Institute of General Medical Sciences [P41GM103393] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under award SCW0972. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. 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). The contents of this publication are solely the responsibility of the authors and do not necessarily represent the official views of NIGMS or NIH. The authors thank Georg Pabst, University of Graz, Graz, Austria, for providing GAP code to analyze SAXS data. NR 67 TC 2 Z9 2 U1 17 U2 28 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 2016 VL 16 IS 7 BP 4019 EP 4024 DI 10.1021/acs.nanolett.6b00466 PG 6 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 DR3HL UT WOS:000379794200009 PM 27322135 ER PT J AU Kiriya, D Lobaccaro, P Nyein, HYY Taheri, P Hettick, M Shiraki, H Sutter-Fella, CM Zhao, PD Gao, W Maboudian, R Ager, JW Javey, A AF Kiriya, Daisuke Lobaccaro, Peter Nyein, Hnin Yin Yin Taheri, Peyman Hettick, Mark Shiraki, Hiroshi Sutter-Fella, Carolin M. Zhao, Peida Gao, Wei Maboudian, Roya Ager, Joel W. Javey, Ali TI General Thermal Texturization Process of MoS2 for Efficient Electrocatalytic Hydrogen Evolution Reaction SO NANO LETTERS LA English DT Article DE MoS2; edge site; hydrogen evolution reaction; thermal texturization; hydrogen thermal processing ID ACTIVE EDGE SITES; NANOSHEETS; CATALYST; WS2; PERFORMANCE; TRANSITION; CHALLENGES; GRAPHENE; PLANET AB Molybdenum disulfide (MoS2) has been widely examined as a catalyst containing no precious metals for the hydrogen evolution reaction (HER); however, these examinations have utilized synthesized MoS2 because the pristine MoS2 mineral is known to be a poor catalyst. The fundamental challenge with pristine MoS2 is the inert HER activity of the predominant (0001) basal surface plane. In order to achieve high HER performance with pristine MoS2, it is essential to activate the basal plane. Here, we report a general thermal process in which the basal plane is texturized to increase the density of HER-active edge sites. This texturization is achieved through a simple thermal annealing procedure in a hydrogen environment, removing sulfur from the MoS2 surface to form edge sites. As a result, the process generates high HER catalytic performance in pristine MoS2 across various morphologies such as the bulk mineral, films composed of micron-scale flakes, and even films of a commercially available spray of nanoflake MoS2. The lowest overpotential (eta) observed for these samples was eta = 170 mV to obtain 10 mA/cm(2) of HER current density. C1 [Kiriya, Daisuke; Nyein, Hnin Yin Yin; Taheri, Peyman; Hettick, Mark; Shiraki, Hiroshi; Sutter-Fella, Carolin M.; Zhao, Peida; Gao, Wei; Javey, Ali] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. [Lobaccaro, Peter; Maboudian, Roya] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Kiriya, Daisuke; Nyein, Hnin Yin Yin; Hettick, Mark; Shiraki, Hiroshi; Sutter-Fella, Carolin M.; Zhao, Peida; Gao, Wei; Ager, Joel W.; Javey, Ali] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Kiriya, Daisuke; Lobaccaro, Peter; Nyein, Hnin Yin Yin; Taheri, Peyman; Hettick, Mark; Shiraki, Hiroshi; Sutter-Fella, Carolin M.; Zhao, Peida; Gao, Wei; Maboudian, Roya; Javey, Ali] Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA. [Lobaccaro, Peter; Hettick, Mark; Ager, Joel W.] Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynth, Berkeley, CA 94720 USA. RP Javey, A (reprint author), Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.; Javey, A (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Javey, A (reprint author), Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA. EM ajavey@berkeley.edu RI Gao, Wei/A-1347-2011; OI Gao, Wei/0000-0002-8503-4562; Sutter-Fella, Carolin/0000-0002-7769-0869 FU Office of Science of the U.S. Department of Energy [DE-SC0004993]; Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, 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] FX XPS, SEM, XRD, and the final electrochemical characterization work was performed in collaboration with the Joint Center for Artificial Photosynthesis (JCAP), a DOE Energy Innovation Hub, supported through the Office of Science of the U.S. Department of Energy under Award Number DE-SC0004993. Processing and initial electrochemical characterization were performed in the Electronic Materials Program, which is supported by Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. TEM work was performed in collaboration with Mary Scott at the Molecular Foundry, which is supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 29 TC 5 Z9 5 U1 45 U2 96 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 2016 VL 16 IS 7 BP 4047 EP 4053 DI 10.1021/acs.nanolett.6b00569 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 DR3HL UT WOS:000379794200013 PM 27322506 ER PT J AU Lee, J Lee, W Lim, J Yu, Y Kong, Q Urban, JJ Yang, PD AF Lee, Jaeho Lee, Woochul Lim, Jongwoo Yu, Yi Kong, Qiao Urban, Jeffrey J. Yang, Peidong TI Thermal Transport in Silicon Nanowires at High Temperature up to 700 K SO NANO LETTERS LA English DT Article DE Thermal conductivity; thermoelectric; phonon transport; single nanowire; nanomaterial; ZT ID THERMOELECTRIC PROPERTIES; PHONON TRANSPORT; HOLEY SILICON; CONDUCTIVITY; SI; SCATTERING AB Thermal transport in silicon nanowires has captured the attention of scientists for understanding phonon transport at the nanoscale, and the thermoelectric figure-of-merit (ZT) reported in rough nanowires has inspired engineers to develop cost-effective waste heat recovery systems. Thermoelectric generators composed of silicon target high-temperature applications due to improved efficiency beyond 550 K. However, there have been no studies of thermal transport in silicon nanowires beyond room temperature. High-temperature measurements also enable studies of unanswered questions regarding the impact of surface boundaries and varying mode contributions as the highest vibrational modes are activated (Debye temperature of silicon is 645 K). Here, we develop a technique to investigate thermal transport in nanowires up to 700 K. Our thermal conductivity measurements on smooth silicon nanowires show the classical diameter dependence from 40 to 120 nm. In conjunction with Boltzmann transport equation, we also probe an increasing contribution of high-frequency phonons (optical phonons) in smooth silicon nanowires as the diameter decreases and the temperature increases. Thermal conductivity of rough silicon nanowires is significantly reduced throughout the temperature range, demonstrating a potential for efficient thermoelectric generation (e.g., ZT = 1 at 700 K). C1 [Lee, Jaeho; Lim, Jongwoo; Yu, Yi; Kong, Qiao; Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Yang, Peidong] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Lee, Woochul; Urban, Jeffrey J.] Lawrence Berkeley Natl Lab, Div Mat Sci, Mol Foundry, Berkeley, CA 94720 USA. [Lee, Jaeho; Lim, Jongwoo; Yang, Peidong] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Yang, Peidong] Kavli Energy Nanosci Inst, Berkeley, CA 94720 USA. [Lee, Jaeho] Univ Calif Irvine, Dept Mech & Aerosp Engn, Irvine, CA 92697 USA. RP Yang, PD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.; Urban, JJ (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Mol Foundry, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Kavli Energy Nanosci Inst, Berkeley, CA 94720 USA. EM jjurban@lbl.gov; p_yang@berkeley.edu FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231] FX We thank Dr. Kedar Hippalgaonkar for help with thermal device fabrication and thank Dr. Sean Andrews and Dr. Anthony Fu for fruitful discussion. Work at the Molecular Foundry was supported by Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 42 TC 2 Z9 2 U1 27 U2 45 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 2016 VL 16 IS 7 BP 4133 EP 4140 DI 10.1021/acs.nanolett.6b00956 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 DR3HL UT WOS:000379794200025 PM 27243378 ER PT J AU Phatak, C Heinonen, O De Graef, M Petford-Long, A AF Phatak, Charudatta Heinonen, Olle De Graef, Marc Petford-Long, Amanda TI Nanoscale Skyrmions in a Nonchiral Metallic Multiferroic: Ni2MnGa SO NANO LETTERS LA English DT Article DE Skyrmions; multiferroic material; Lorentz transmission electron microscopy ID MAGNETIC SKYRMIONS; TOPOLOGICAL INSULATORS; CHIRAL MAGNET; DYNAMICS; CRYSTAL; LATTICE; MOTION AB Magnetic skyrmions belong to a set of topologically nontrivial spin textures at the nanoscale that have received increased attention due to their emergent behavior and novel potential spintronic applications. Discovering materials systems that can host skyrmions at room temperature in the absence of external magnetic field is of crucial importance not only from a fundamental aspect, but also from a technological point of view. So far, the observations of skyrmions in bulk metallic ferromagnets have been limited to low temperatures and to materials that exhibit strong chiral interactions. Here we show the formation of nanoscale skyrmions in a nonchiral multiferroic material, which is ferromagnetic and ferroelastic, Ni2MnGa at room temperature without the presence of external magnetic fields. By using Lorentz transmission electron microscopy in combination with micromagnetic simulations, we elucidate their formation, behavior, and stability under applied magnetic fields at room temperature. The formation of skyrmions in a multiferroic material with no broken inversion symmetry presents new exciting opportunities for the exploration of the fundamental physics of topologically nontrivial spin textures. C1 [Phatak, Charudatta; Heinonen, Olle; Petford-Long, Amanda] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [De Graef, Marc] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. [Petford-Long, Amanda] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. RP Phatak, C (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM cd@anl.gov FU U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02- 06CH11357]; National Science Foundation [DMR-1306296] FX Work by C.P., A.P.-L., and O.H. was supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02- 06CH11357. M.DG. would like to acknowledge support from the National Science Foundation, Grant No. DMR-1306296. We gratefully acknowledge the computing resources provided on Blues and Fusion, high-performance computing clusters operated by the Laboratory Computing Resource Center at Argonne National Laboratory. NR 35 TC 1 Z9 1 U1 18 U2 31 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 2016 VL 16 IS 7 BP 4141 EP 4148 DI 10.1021/acs.nanolett.6b01011 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 DR3HL UT WOS:000379794200026 PM 27186990 ER PT J AU Hobbs, RG Manfrinato, VR Yang, YJ Goodman, SA Zhang, LH Stach, EA Berggren, KK AF Hobbs, Richard G. Manfrinato, Vitor R. Yang, Yujia Goodman, Sarah A. Zhang, Lihua Stach, Eric A. Berggren, Karl K. TI High-Energy Surface and Volume Plasmons in Nanopatterned Sub-10 nm Aluminum Nanostructures SO NANO LETTERS LA English DT Article DE Volume plasmon; aluminum; nanodisk EELS; UV plasmonics; lithography ID ELECTRON-BEAM LITHOGRAPHY; METAL NANOSTRUCTURES; RESOLUTION LIMITS; RESONANCE RAMAN; NANOWIRE DIMERS; NANOPARTICLES; MODES; NANOCLUSTERS; NANOCRYSTALS; SPECTROSCOPY AB In this work, we use electron energy-loss spectroscopy to map the complete plasmonic spectrum of aluminum nanodisks with diameters ranging from 3 to 120 nm fabricated by high-resolution electron-beam lithography. Our nanopatterning approach allows us to produce localized surface plasmon resonances across a wide spectral range spanning 2-8 eV. Electromagnetic simulations using the finite element method support the existence of dipolar, quadrupolar, and hexapolar surface plasmon modes as well as centrosymmetric breathing modes depending on the location of the electron beam excitation. In addition, we have developed an approach using nanolithography that is capable of meV control over the energy and attosecond control over the lifetime of volume plasmons in these nanodisks. The precise measurement of volume plasmon lifetime may also provide an opportunity to probe and control the DC electrical conductivity of highly confined metallic nanostructures. Lastly, we show the strong influence of the nanodisk boundary in determining both the energy and lifetime of surface plasmons and volume plasmons locally across individual aluminum nanodisks, and we have compared these observations to similar effects produced by scaling the nanodisk diameter. C1 [Hobbs, Richard G.; Manfrinato, Vitor R.; Yang, Yujia; Goodman, Sarah A.; Berggren, Karl K.] MIT, Elect Res Lab, Cambridge, MA 02139 USA. [Zhang, Lihua; Stach, Eric A.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Berggren, KK (reprint author), MIT, Elect Res Lab, Cambridge, MA 02139 USA. EM berggren@mit.edu RI Stach, Eric/D-8545-2011 OI Stach, Eric/0000-0002-3366-2153 FU U.S. DOE Office of Science Facility, at Brookhaven National Laboratory [DE-SC0012704]; Gordon and Betty Moore Foundation; Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program; Center for Excitonics, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001088] FX This research used the Hitachi HD2700C STEM at the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. R.G.H., V.R.M., Y.Y., and K.K.B. would like to also acknowledge support from the Gordon and Betty Moore Foundation. S.A.G. was supported by the Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program. This work was supported as part of the Center for Excitonics, 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-SC0001088. We thank James Daley and Mark Mondol for assistance and advice related to nanodisk fabrication. We also would like to thank Prof. Philip Batson for helpful discussions and assistance with measurements at Rutgers University. NR 68 TC 4 Z9 4 U1 18 U2 54 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 2016 VL 16 IS 7 BP 4149 EP 4157 DI 10.1021/acs.nanolett.6b01012 PG 9 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 DR3HL UT WOS:000379794200027 PM 27295061 ER PT J AU Shen, YD Chen, RJ Yu, XC Wang, QJ Jungjohann, KL Dayeh, SA Wu, T AF Shen, Youde Chen, Renjie Yu, Xuechao Wang, Qijie Jungjohann, Katherine L. Dayeh, Shadi A. Wu, Tom TI Gibbs-Thomson Effect in Planar Nanowires: Orientation and Doping Modulated Growth SO NANO LETTERS LA English DT Article DE nanowire; In2O3; ITO; Gibbs-Thomson effect; vapor-liquid-solid mechanism; surface energy ID INDIUM-TIN-OXIDE; MOLECULAR-BEAM EPITAXY; LIQUID-SOLID GROWTH; SEMICONDUCTOR NANOWIRES; GUIDED GROWTH; VLS GROWTH; TRANSPARENT; NANOSTRUCTURES; ELECTRONICS; ARRAYS AB Epitaxy-enabled bottom-up synthesis of self-assembled planar nanowires via the vapor-liquid-solid mechanism is an emerging and promising approach toward large-scale direct integration of nanowire-based devices without postgrowth alignment. Here, by examining large assemblies of indium tin oxide nanowires on yttria-stabilized zirconia substrate, we demonstrate for the first time that the growth dynamics of planar nanowires follows a modified version of the Gibbs Thomson mechanism, which has been known for the past decades to govern the correlations between thermodynamic super saturation, growth speed, and nanowire morphology. Furthermore, the substrate orientation strongly influences the growth characteristics of epitaxial planar nanowires as opposed to impact at only the initial nucleation stage in the growth of vertical nanowires. The rich nanowire morphology can be described by a surface-energy dependent growth model within the Gibbs Thomson framework, which is further modulated by the tin doping concentration. Our experiments also reveal that the cutoff nanowire diameter depends on the substrate orientation and decreases with increasing tin doping concentration. These results enable a deeper understanding and control over the growth of planar nanowires, and the insights will help advance the fabrication of self-assembled nanowire devices. C1 [Shen, Youde] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore. [Chen, Renjie; Dayeh, Shadi A.] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA. [Yu, Xuechao; Wang, Qijie] Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore. [Jungjohann, Katherine L.] Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA. [Wu, Tom] King Abdullah Univ Sci & Technol KAUST, Mat Sci & Engn, Thuwal 23955, Saudi Arabia. RP Dayeh, SA (reprint author), Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA.; Wu, T (reprint author), King Abdullah Univ Sci & Technol KAUST, Mat Sci & Engn, Thuwal 23955, Saudi Arabia. EM sdayeh@ece.ucsd.edu; Tao.Wu@kaust.edu.sa RI Wang, Qi Jie/E-6987-2010; Wu, Tom/A-1158-2012; Chen, Renjie/B-5639-2017 OI Wu, Tom/0000-0003-0845-4827; Chen, Renjie/0000-0002-3145-6882 FU U.S. Department of Energy, Office of Basic Energy Sciences User Facility at Los Alamos National Laboratory [DE-AC52-06NA25396]; Sandia National Laboratories [DE-AC04-94AL85000]; NSF [ECCS-1351980, DMR-1503595] FX The FIB preparations, AFM and TEM characterizations in this work were performed at the Center for Integrated Nanotechnologies (CINT), a U.S. Department of Energy, Office of Basic Energy Sciences User Facility at Los Alamos National Laboratory (Contract DE-AC52-06NA25396) and Sandia National Laboratories (Contract DE-AC04-94AL85000). S.A.D. acknowledges support of an NSF CAREER Award under ECCS-1351980 and an NSF DMR-1503595 award. NR 60 TC 0 Z9 0 U1 12 U2 23 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 2016 VL 16 IS 7 BP 4158 EP 4165 DI 10.1021/acs.nanolett.6b01037 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 DR3HL UT WOS:000379794200028 PM 27254592 ER PT J AU Zhang, BM Wu, LJ Yin, WG Sun, CJ Yang, P Venkatesan, T Chen, JS Zhu, YM Chow, GM AF Zhang, Bangmin Wu, Lijun Yin, Wei-Guo Sun, Cheng-Jun Yang, Ping Venkatesan, T. Chen, Jingsheng Zhu, Yimei Chow, Gan Moog TI Interfacial Coupling-Induced Ferromagnetic Insulator Phase in Manganite Film SO NANO LETTERS LA English DT Article DE Interfacial coupling; perovskite; STEM; ferromagnetic insulator phase; thickness dependence ID THIN-FILMS; PEROVSKITES; TRANSITION; LA1-XSRXMNO3; RESISTIVITY AB Interfaces with subtle differences in atomic and electronic structures in perovskite ABO(3) heterostructures often yield intriguingly different properties, yet their exact roles remain elusive. Here, we report an integrated study of unusual transport, magnetic, and structural properties of Pr0.67Sr0.33MnO3 film on SrTiO3 substrate. The variations in the out-of-plane lattice constant and BO6 octahedral rotation across the Pr0.67Sr0.33MnO3/SrTiO3 interface strongly depend on the thickness of the Pr0.67Sr0.33MnO3 film. In the 12 rim film, a new interface-sensitive ferromagnetic polaronic insulator (FI') phase is formed during the cubic-to-tetragonal phase transition of SrTiO3, apparently due to the enhanced electron-phonon interaction and atomic disorder in the film. The transport properties of the FI' phase in the 30 nm film are masked because of the reduced interfacial coupling and smaller interface-to-volume ratio. This work demonstrates how thickness dependent interfacial coupling leads to the formation of a theoretically predicted ferromagnetic polaronic insulator, as illustrated in a new phase diagram, that is otherwise ferromagnetic metal (FM) in bulk form. C1 [Zhang, Bangmin; Chen, Jingsheng; Chow, Gan Moog] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore. [Wu, Lijun; Yin, Wei-Guo; Zhu, Yimei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA. [Sun, Cheng-Jun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Yang, Ping] Natl Univ Singapore, Singapore Synchrotron Light Source SSLS, 5 Res Link, Singapore 117603, Singapore. [Venkatesan, T.] Natl Univ Singapore, NUSNNI Nanocore, Singapore 117411, Singapore. [Venkatesan, T.] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore. [Venkatesan, T.] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore. RP Chow, GM (reprint author), Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore.; Zhu, YM (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA. EM zhu@bnl.gov; msecgm@nus.edu.sg RI Yin, Weiguo/A-9671-2014 OI Yin, Weiguo/0000-0002-4965-5329 FU Singapore National Research Foundation under CRP Award [NRF-CRP10-2012-02]; Singapore Ministry of Education [MOE2015-T2-1-016]; U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Science and Engineering [DESC0012704]; SSLS via NUS Core Support [C-380-003-003-001]; US Department of Energy - Basic Energy Sciences; Canadian Light Source; University of Washington; Advanced Photon Source; U.S. DOE [DE-AC02-06CH11357] FX The research is supported by the Singapore National Research Foundation under CRP Award No. NRF-CRP10-2012-02 and the Singapore Ministry of Education Academic Research Fund Tier 2 under the Project No. MOE2015-T2-1-016. Work at Brookhaven National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Science and Engineering, under Contract No. DESC0012704. P.Y. is supported from SSLS via NUS Core Support C-380-003-003-001. Sector 20 facilities at the Advanced Photon Source, and research at these facilities, are supported by the US Department of Energy - Basic Energy Sciences, the Canadian Light Source and its funding partners, the University of Washington, and the Advanced Photon Source. 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 43 TC 1 Z9 1 U1 11 U2 21 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 2016 VL 16 IS 7 BP 4174 EP 4180 DI 10.1021/acs.nanolett.6b01056 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 DR3HL UT WOS:000379794200030 PM 27276032 ER PT J AU Li, B Liu, J Nie, Z Wang, W Reed, D Liu, J McGrail, P Sprenkle, V AF Li, Bin Liu, Jian Nie, Zimin Wang, Wei Reed, David Liu, Jun McGrail, Pete Sprenkle, Vincent TI Metal Organic Frameworks as Highly Active Electrocatalysts for High-Energy Density, Aqueous Zinc-Polyiodide Redox Flow Batteries SO NANO LETTERS LA English DT Article DE Energy storage; redox flow battery; catalysts; metal-organic frameworks; polyiodide ID SENSITIZED SOLAR-CELLS; STORAGE; STABILITY; PROGRESS; ZR AB The new aqueous zinc-polyiodide redox flow battery (RFB) system with highly soluble active materials as well as ambipolar and bifunctional designs demonstrated significantly enhanced energy density, which shows great potential to reduce RFB cost. However, the poor kinetic reversibility and electrochemical activity of the redox reaction of I-3(-)/I- couples on graphite felts (GFs) electrode can result in low energy efficiency. Two nanoporous metal-organic frameworks (MOFs), MIL-125-NH2 and UiO-66-CH3, that have high surface areas when introduced to GF surfaces accelerated the I-3(-)/I- redox reaction. The flow cell with MOF-modified GFs serving as a positive electrode showed higher energy efficiency than the pristine GFs; increases of about 6.4% and 2.7% occurred at the current density of 30 mA/cm(2) for MIL-125-NH2 and UiO-66-CH3, respectively. Moreover, UiO-66-CH3 is more promising due to its excellent chemical stability in the weakly acidic electrolyte. This letter highlights a way for MOFs to be used in the field of RFBs. C1 [Li, Bin; Liu, Jian; Nie, Zimin; Wang, Wei; Reed, David; Liu, Jun; McGrail, Pete; Sprenkle, Vincent] Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA. RP Li, B; Liu, J (reprint author), Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA. EM bin.li@pnnl.gov; jian.liu@pnnl.gov RI Wang, Wei/F-4196-2010; Liu, Jian/D-3393-2009 OI Wang, Wei/0000-0002-5453-4695; Liu, Jian/0000-0001-5329-7408 FU U.S. Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability (OE) [57558]; DOE [DE-AC05-76RL01830] FX The authors would like to acknowledge financial support from the U.S. Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability (OE) (under Contract No. 57558). We also are grateful for insightful discussions with Dr. Imre Gyuk of the DOE-OE Grid Storage Program. Pacific Northwest National Laboratory is a multiprogram national laboratory operated by Battelle for DOE under Contract DE-AC05-76RL01830. NR 31 TC 2 Z9 2 U1 70 U2 145 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 2016 VL 16 IS 7 BP 4335 EP 4340 DI 10.1021/acs.nanolett.6b01426 PG 6 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 DR3HL UT WOS:000379794200053 PM 27267589 ER PT J AU Sutter, E Huang, Y Komsa, HP Ghorbani-Asl, M Krasheninnikov, AV Sutter, P AF Sutter, E. Huang, Y. Komsa, H. -P. Ghorbani-Asl, M. Krasheninnikov, A. V. Sutter, P. TI Electron-Beam Induced Transformations of Layered Tin Dichalcogenides SO NANO LETTERS LA English DT Article DE two-dimensional materials; defects; electron irradiation; structural transformation; sulfide; selenide ID STRUCTURAL PHASE-TRANSITION; LITHIUM-ION BATTERIES; MOLYBDENUM-DISULFIDE; ATOMIC MECHANISM; THIN-FILMS; MOS2; MONOLAYER; SNS2; INTERCALATION; PERFORMANCE AB By combining high-resolution transmission electron microscopy and associated analytical methods with first-principles calculations, we study the behavior of layered tin dichalcogenides under electron beam irradiation. We demonstrate that the controllable removal of chalcogen atoms due to electron irradiation, at both room and elevated temperatures, gives rise to transformations in the atomic structure of Sn-S and Sn-Se systems so that new phases with different properties can be induced. In particular, rhombohedral layered SnS2 and SnSe2 can be transformed via electron beam induced loss of chalcogen atoms into highly anisotropic orthorhombic layered SnS and SnSe. A striking dependence of the layer orientation of the resulting SnS parallel to the layers of ultrathin SnS2 starting material, but slanted for transformations of thicker few-layer SnS2 is rationalized by a transformation pathway in which vacancies group into ordered S-vacancy lines, which convert via a Sn2S3 intermediate to SnS. Absence of a stable Sn2Se3 intermediate precludes this pathway for the selenides, hence SnSe2 always transforms into basal plane oriented SnSe. Our results provide microscopic insights into the transformation mechanism and show how irradiation can be used to tune the properties of layered tin chalcogenides for applications in electronics, catalysis, or energy storage. C1 [Sutter, E.] Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA. [Huang, Y.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Komsa, H. -P.; Krasheninnikov, A. V.] Aalto Univ, Dept Appl Phys, POB 11100, FI-00076 Aalto, Finland. [Ghorbani-Asl, M.] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany. [Sutter, P.] Univ Nebraska Lincoln, Dept Elect & Comp Engn, Lincoln, NE 68588 USA. RP Sutter, E (reprint author), Univ Nebraska Lincoln, Dept Mech & Mat Engn, Lincoln, NE 68588 USA.; Sutter, P (reprint author), Univ Nebraska Lincoln, Dept Elect & Comp Engn, Lincoln, NE 68588 USA. EM esutter@unl.edu; psutter@unl.edu RI Krasheninnikov, Arkady/L-3866-2016; Ghorbani-Asl, Mahdi/A-4951-2013 OI Krasheninnikov, Arkady/0000-0003-0074-7588; Ghorbani-Asl, Mahdi/0000-0003-3060-4369 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; U.S. Army RDECOM [W911NF-15-1-0606]; Academy of Finland [263416, 286279]; Centres of Excellence Programme [251748]; [DE-SC0012704] FX This research used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility at Brookhaven National Laboratory under Contract No. DE-SC0012704. P.S. and E.S. acknowledge support by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering. A.V.K and H.P.K. acknowledge support from the U.S. Army RDECOM via contract No. W911NF-15-1-0606, Academy of Finland through Project Nos. 263416 and 286279, and Centres of Excellence Programme (2012-2017) under Project No. 251748. We also thank CSC-IT Center for Science Ltd. and Aalto Science-IT project for generous grants of computer time. NR 48 TC 2 Z9 2 U1 76 U2 135 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 2016 VL 16 IS 7 BP 4410 EP 4416 DI 10.1021/acs.nanolett.6b01541 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 DR3HL UT WOS:000379794200064 PM 27336595 ER PT J AU Huang, WK Zhang, KW Yang, CL Ding, HF Wan, XG Li, SC Evans, JW Han, Y AF Huang, Wen-Kai Zhang, Kai-Wen Yang, Chao-Long Ding, Haifeng Wan, Xiangang Li, Shao-Chun Evans, James W. Han, Yong TI Tailoring Kinetics on a Topological Insulator Surface by Defect-Induced Strain: Pb Mobility on Bi2Te3 SO NANO LETTERS LA English DT Article DE Surface strain; topological insulator surface; surface adsorption and diffusion; heteroepitaxial film growth; density functional theory calculations; kinetic Monte Carlo simulations ID SINGLE DIRAC CONE; FILM GROWTH; THIN-FILMS; SUPERCONDUCTIVITY; DIFFUSION; BI2SE3; STRESS; STATES; 3D AB Heteroepitaxial structures based on Bi2Te3-type topological insulators (TIs) exhibit exotic quantum phenomena. For optimal characterization of these phenomena, it is desirable to control the interface structure during film growth on such TIs. In this process, adatom mobility is a key factor. We demonstrate that Pb mobility on the Bi2Te3(111) surface can be modified by the engineering local strain, epsilon, which is induced around the point-like defects intrinsically forming in the Bi2Te3(111) thin film grown on a Si(111)-7 x 7 substrate. Scanning tunneling microscopy observations of Pb adatom and cluster distributions and first-principles density functional theory (DFT) analyses of the adsorption energy and diffusion barrier E-d of Pb adatom on Bi2Te3(111) surface show a significant influence of epsilon. Surprisingly, E-d reveals a cusp-like dependence on epsilon due to a bifurcation in the position of the stable adsorption site at the critical tensile strain epsilon(c) approximate to 0.8%. This constitutes a very different strain-dependence of diffusivity from all previous studies focusing on conventional metal or semiconductor surfaces. Kinetic Monte Carlo simulations of Pb deposition, diffusion, and irreversible aggregation incorporating the DFT results reveal adatom and cluster distributions compatible with our experimental observations. C1 [Huang, Wen-Kai; Zhang, Kai-Wen; Yang, Chao-Long; Ding, Haifeng; Wan, Xiangang; Li, Shao-Chun] Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Ding, Haifeng; Wan, Xiangang; Li, Shao-Chun] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Evans, James W.; Han, Yong] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Evans, James W.; Han, Yong] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA. RP Li, SC (reprint author), Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.; Li, SC (reprint author), Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China.; Han, Y (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.; Han, Y (reprint author), Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA. EM scli@nju.edu.cn; yong@ameslab.gov RI Ding, haifeng/B-4221-2010 OI Ding, haifeng/0000-0001-7524-0779 FU State Key Program for Basic Research of China [2014CB921103, 2013CB922103]; National Natural Science Foundation of China [11374140, 11374145]; NSF [CHE-1111500, CHE-1507223] FX The work at Nanjing University is supported by the State Key Program for Basic Research of China (Grants No. 2014CB921103, No. 2013CB922103) and National Natural Science Foundation of China (Grants No. 11374140, No. 11374145). Y.H. and J.W.E. are supported by NSF grants CHE-1111500 and CHE-1507223 utilizing NERSC, XSEDE, and OLCF resources. NR 47 TC 0 Z9 0 U1 27 U2 48 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 2016 VL 16 IS 7 BP 4454 EP 4461 DI 10.1021/acs.nanolett.6b01604 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 DR3HL UT WOS:000379794200070 PM 27302741 ER PT J AU Zhao, H Yang, Q Yuca, N Ling, M Higa, K Battaglia, VS Parkinson, DY Srinivasan, V Liu, G AF Zhao, Hui Yang, Qing Yuca, Neslihan Ling, Min Higa, Kenneth Battaglia, Vincent S. Parkinson, Dilworth Y. Srinivasan, Venkat Liu, Gao TI A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries SO NANO LETTERS LA English DT Article DE Porosity; high-capacity anode; conductive polymer binder; X-ray tomography; high loading; lithium-ion battery ID CONDUCTIVE POLYMER BINDER; PERFORMANCE SILICON ANODES; HIGH-CAPACITY; DESIGN AB Control over porous electrode microstructure is critical for the continued improvement of electrochemical performance of lithium ion batteries. 6 This paper describes a convenient and economical method for controlling electrode porosity, thereby enhancing material loading and stabilizing the cycling performance. Sacrificial NaCl is added to a Si-based electrode, which demonstrates an areal capacity of similar to 4 mAh/cm(2) at a C/10 rate (0.51 mA/cm(2)) and an areal capacity of 3 mAh/cm(2) at a C/3 rate (1.7 mA/cm(2)), one of the highest material loadings reported for a Si-based anode at such a high cycling rate. X-ray microtomography confirmed the improved porous architecture of the SiO electrode with NaCl. The method developed here is expected to be compatible with the state-of-the-art lithium ion battery industrial fabrication processes and therefore holds great promise as a practical technique for boosting the electrochemical performance of lithium ion batteries without changing material systems. C1 [Zhao, Hui; Ling, Min; Higa, Kenneth; Battaglia, Vincent S.; Srinivasan, Venkat; Liu, Gao] Lawrence Berkeley Natl Lab, Energy Technol Area, Berkeley, CA 94720 USA. [Yang, Qing; Parkinson, Dilworth Y.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Yuca, Neslihan] Istanbul Tech Univ, Energy Inst, TR-34469 Istanbul, Turkey. RP Liu, G (reprint author), Lawrence Berkeley Natl Lab, Energy Technol Area, Berkeley, CA 94720 USA. EM gliu@lbl.gov RI Yang, Qing/C-9775-2017 FU Vehicle Technologies Office of the U.S. Department of Energy (U.S. DOE) under the Advanced Battery Materials Research (BMR) Program; Vehicle Technologies Office of the U.S. Department of Energy (U.S. DOE) under Applied Battery Research (ABR) Program; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05 CH11231]; Scientific and Technological Research Council of Turkey (TUBITAK) in Ankara, Turkey FX This work was funded by the Assistant Secretary for Energy Efficiency, Vehicle Technologies Office of the U.S. Department of Energy (U.S. DOE) under the Advanced Battery Materials Research (BMR) and Applied Battery Research (ABR) Programs. X-ray tomography measurements and analysis were performed at Beamline 8.3.2 of the Advanced Light Source (ALS). Nuclear magnetic resonance spectroscopy (NMR) was performed at the Molecular Foundry. TEM was performed at the National Center for Electron Microscopy. All of these projects and facilities are supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy, under Contract No. DE-AC02-05 CH11231. N.Y. expresses thanks for the funding provided by The Scientific and Technological Research Council of Turkey (TUBITAK) in Ankara, Turkey. NR 16 TC 0 Z9 0 U1 38 U2 101 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 2016 VL 16 IS 7 BP 4686 EP 4690 DI 10.1021/acs.nanolett.6b02156 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 DR3HL UT WOS:000379794200103 PM 27336856 ER PT J AU Wurch, L Giannone, RJ Belisle, BS Swift, C Utturkar, S Hettich, RL Reysenbach, AL Podar, M AF Wurch, Louie Giannone, Richard J. Belisle, Bernard S. Swift, Carolyn Utturkar, Sagar Hettich, Robert L. Reysenbach, Anna-Louise Podar, Mircea TI Genomics-informed isolation and characterization of a symbiotic Nanoarchaeota system from a terrestrial geothermal environment SO NATURE COMMUNICATIONS LA English DT Article ID YELLOWSTONE-NATIONAL-PARK; IGNICOCCUS-HOSPITALIS; THERMOCOCCUS-KODAKARENSIS; CARBOHYDRATE-METABOLISM; PEPTIDE IDENTIFICATION; MICROBIAL COMMUNITIES; ARCHAEAL EVOLUTION; HIGH-TEMPERATURE; DOMAIN ARCHAEA; HOT-SPRINGS AB Biological features can be inferred, based on genomic data, for many microbial lineages that remain uncultured. However, cultivation is important for characterizing an organism's physiology and testing its genome-encoded potential. Here we use single-cell genomics to infer cultivation conditions for the isolation of an ectosymbiotic Nanoarchaeota ('Nanopusillus acidilobi') and its host (Acidilobus, a crenarchaeote) from a terrestrial geothermal environment. The cells of 'Nanopusillus' are among the smallest known cellular organisms (100300 nm). They appear to have a complete genetic information processing machinery, but lack almost all primary biosynthetic functions as well as respiration and ATP synthesis. Genomic and proteomic comparison with its distant relative, the marine Nanoarchaeum equitans illustrate an ancient, common evolutionary history of adaptation of the Nanoarchaeota to ectosymbiosis, so far unique among the Archaea. C1 [Wurch, Louie; Giannone, Richard J.; Belisle, Bernard S.; Swift, Carolyn; Utturkar, Sagar; Hettich, Robert L.; Podar, Mircea] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Wurch, Louie; Belisle, Bernard S.; Swift, Carolyn; Hettich, Robert L.; Podar, Mircea] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Reysenbach, Anna-Louise] Portland State Univ, Dept Biol, Portland, OR 97207 USA. [Wurch, Louie] James Madison Univ, Dept Biol, Harrisonburg, VA 22807 USA. RP Podar, M (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.; Podar, M (reprint author), Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. EM podarm@ornl.gov RI Hettich, Robert/N-1458-2016 OI Hettich, Robert/0000-0001-7708-786X FU National Science Foundation [DEB1134877]; U.S. Department of Energy, Office of Biological and Environmental Research [DE-SC0006654]; U.S. Department of Energy [DE-AC05-00OR22725] FX This research was supported by grants from the National Science Foundation (DEB1134877) and from the U.S. Department of Energy, Office of Biological and Environmental Research (DE-SC0006654). Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. We thank the administration of Yellowstone National Park for the permit YELL-2008-SCI-5714 and Christie Hendrix and Stacey Gunther for coordinating the sampling activities. We acknowledge the University of Tennessee Advanced Microscopy and Imaging Center for instrument use, scientific and technical assistance with scanning electron microscopy. We acknowledge the Genomics Resource Center of the University of Maryland Institute for Genome Science for PacBio sequencing and the Genomics Core at the University of Tennessee Knoxville for Sanger sequencing. We also thank Steve Allman, Zamin Yang and Dawn Klingeman for assistance with cell sorting, molecular biology techniques and MiSeq sequencing. NR 56 TC 4 Z9 4 U1 3 U2 15 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD JUL PY 2016 VL 7 AR 12115 DI 10.1038/ncomms12115 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR6YP UT WOS:000380047500001 PM 27378076 ER PT J AU Yao, GR Zhang, SC Mahrhold, S Lam, KH Stern, D Bagramyan, K Perry, K Kalkum, M Rummel, A Dong, M Jin, RS AF Yao, Guorui Zhang, Sicai Mahrhold, Stefan Lam, Kwok-ho Stern, Daniel Bagramyan, Karine Perry, Kay Kalkum, Markus Rummel, Andreas Dong, Min Jin, Rongsheng TI N-linked glycosylation of SV2 is required for binding and uptake of botulinum neurotoxin A SO NATURE STRUCTURAL & MOLECULAR BIOLOGY LA English DT Article ID SYNAPTIC VESICLE PROTEIN; MONOCLONAL-ANTIBODIES; RECEPTOR-BINDING; STRUCTURAL BASIS; SEROTYPE H; RECOGNITION; ENTRY; SITE; GANGLIOSIDES; ANCHORAGE AB Botulinum neurotoxin serotype A1 (BoNT/A1), a licensed drug widely used for medical and cosmetic applications, exerts its action by invading motoneurons. Here we report a 2.0-angstrom-resolution crystal structure of the BoNT/A1 receptor-binding domain in complex with its neuronal receptor, glycosylated human SV2C. We found that the neuronal tropism of BoNT/A1 requires recognition of both the peptide moiety and an N-linked glycan on SV2. This N-glycan-which is conserved in all SV2 isoforms across vertebrates is essential for BoNT/A1 binding to neurons and for its potent neurotoxicity. The glycan-binding interface on SV2 is targeted by a human BoNT/A1-neutralizing antibody currently licensed as an antibotulism drug. Our studies reveal a new paradigm of host-pathogen interactions, in which pathogens exploit conserved host post-translational modifications, thereby achieving highly specific receptor binding while also tolerating genetic changes across multiple isoforms of receptors. C1 [Yao, Guorui; Lam, Kwok-ho; Jin, Rongsheng] Univ Calif Irvine, Dept Physiol & Biophys, Irvine, CA 92717 USA. [Zhang, Sicai; Dong, Min] Harvard Med Sch, Dept Urol, Boston Childrens Hosp, Boston, MA 02115 USA. [Zhang, Sicai; Dong, Min] Harvard Med Sch, Dept Microbiol & Immunobiol, Boston, MA 02115 USA. [Zhang, Sicai; Dong, Min] Harvard Med Sch, Dept Surg, Boston, MA 02115 USA. [Mahrhold, Stefan; Rummel, Andreas] Hannover Med Sch, Inst Toxikol, Hannover, Germany. [Stern, Daniel] Ctr Biol Threats & Special Pathogens Biol Toxins, Robert Koch Inst, Berlin, Germany. [Bagramyan, Karine; Kalkum, Markus] Beckman Res Inst City Hope, Dept Mol Immunol, Duarte, CA USA. [Perry, Kay] Cornell Univ, Dept Chem & Chem Biol, Argonne Natl Lab, NE CAT, Argonne, IL USA. RP Jin, RS (reprint author), Univ Calif Irvine, Dept Physiol & Biophys, Irvine, CA 92717 USA.; Dong, M (reprint author), Harvard Med Sch, Dept Urol, Boston Childrens Hosp, Boston, MA 02115 USA.; Dong, M (reprint author), Harvard Med Sch, Dept Microbiol & Immunobiol, Boston, MA 02115 USA.; Dong, M (reprint author), Harvard Med Sch, Dept Surg, Boston, MA 02115 USA.; Rummel, A (reprint author), Hannover Med Sch, Inst Toxikol, Hannover, Germany. EM rummel.andreas@mh-hannover.de; min.dong@childrens.harvard.edu; r.jin@uci.edu OI Stern, Daniel/0000-0001-9057-4283 FU National Institute of Allergy and Infectious Diseases (NIAID) [R01AI091823, R21AI123920, R01AI096169]; National Institute of Neurological Disorders and Stroke (NINDS) [R01NS080833]; Bundesministerium fur Bildung and Forschung [FK031A212A, FK031A212B]; National Institute of General Medical Sciences [P41 GM103403]; NIH-ORIP HEI [S10 RR029205]; US Department of Energy (DOE) Office of Science by Argonne National Laboratory - US DOE [DE-AC02-06CH11357] FX This work was partly supported by National Institute of Allergy and Infectious Diseases (NIAID) grants R01AI091823 and R21AI123920 to R.J. and R01AI096169 to M.K.; by National Institute of Neurological Disorders and Stroke (NINDS) grant R01NS080833 to M.D.; and by Bundesministerium fur Bildung and Forschung grants FK031A212A to A.R. and FK031A212B to B.G. Dorner (RKI). NE-CAT at the Advanced Photon Source (APS) is supported by a grant from the National Institute of General Medical Sciences (P41 GM103403). The Pilatus 6M detector at the 24-ID-C beamline is funded by a NIH-ORIP HEI grant (S10 RR029205). Use of the APS, an Office of Science User Facility operated for the US Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the US DOE under contract no. DE-AC02-06CH11357. We thank J. Weisemann for cloning HCHA and N. Krez for dissecting the MPN hemidiaphragm tissue. We thank E. Chapman (University of Wisconsin-Madison), E. Johnson (University of Wisconsin-Madison), J. Marks (University of California, San Francisco), and R. Janz (The University of Texas Health Science Center at Houston) for generously providing reagents. NR 38 TC 8 Z9 8 U1 1 U2 2 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1545-9993 EI 1545-9985 J9 NAT STRUCT MOL BIOL JI Nat. Struct. Mol. Biol. PD JUL PY 2016 VL 23 IS 7 BP 656 EP 662 DI 10.1038/nsmb.3245 PG 7 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA DQ7DX UT WOS:000379368200007 PM 27294781 ER PT J AU Horowitz, S Salmon, L Koldewey, P Ahlstrom, LS Martin, R Quan, S Afonine, PV van den Bedem, H Wang, LL Xu, QP Trievel, RC Brooks, CL Bardwell, JCA AF Horowitz, Scott Salmon, Loic Koldewey, Philipp Ahlstrom, Logan S. Martin, Raoul Quan, Shu Afonine, Pavel V. van den Bedem, Henry Wang, Lili Xu, Qingping Trievel, Raymond C. Brooks, Charles L., III Bardwell, James C. A. TI Visualizing chaperone-assisted protein folding SO NATURE STRUCTURAL & MOLECULAR BIOLOGY LA English DT Article ID CRYSTAL-STRUCTURE; SUBSTRATE RECOGNITION; TRIGGER FACTOR; COMPLEX; GROEL; SPY; IM7; ASYMMETRY; DYNAMICS; SEARCH AB Challenges in determining the structures of heterogeneous and dynamic protein complexes have greatly hampered past efforts to obtain a mechanistic understanding of many important biological processes. One such process is chaperone assisted protein folding. Obtaining structural ensembles of chaperone-substrate complexes would ultimately reveal how chaperones help proteins fold into their native state. To address this problem, we devised a new structural biology approach based on X-ray crystallography, termed residual electron and anomalous density (READ). READ enabled us to visualize even sparsely populated conformations of the substrate protein immunity protein 7 (Im7) in complex with the Escherichia coli chaperone Spy, and to capture a series of snapshots depicting the various folding states of Im7 bound to Spy. The ensemble shows that Spy-associated Im7 samples conformations ranging from unfolded to partially folded to native-like states and reveals how a substrate can explore its folding landscape while being bound to a chaperone. C1 [Horowitz, Scott; Salmon, Loic; Koldewey, Philipp; Ahlstrom, Logan S.; Martin, Raoul; Wang, Lili; Bardwell, James C. A.] Univ Michigan, Dept Mol Cellular & Dev Biol, Ann Arbor, MI 48109 USA. [Horowitz, Scott; Salmon, Loic; Koldewey, Philipp; Ahlstrom, Logan S.; Martin, Raoul; Wang, Lili; Bardwell, James C. A.] Howard Hughes Med Inst, Ann Arbor, MI USA. [Ahlstrom, Logan S.; Brooks, Charles L., III] Univ Michigan, Dept Chem & Biophys Program, Ann Arbor, MI USA. [Quan, Shu] East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai Collaborat Innovat Ctr Biomfg, Shanghai, Peoples R China. [Afonine, Pavel V.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [van den Bedem, Henry] Stanford Univ, SLAC Natl Accelerator Lab, Div Biosci, Stanford, CA USA. [Xu, Qingping] SLAC Natl Lab, Stanford Synchrotron Radiat Lightsource, Joint Ctr Struct Genom, Menlo Pk, CA USA. [Trievel, Raymond C.] Univ Michigan, Dept Biol Chem, Ann Arbor, MI USA. [Martin, Raoul] Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA USA. RP Horowitz, S; Bardwell, JCA (reprint author), Univ Michigan, Dept Mol Cellular & Dev Biol, Ann Arbor, MI 48109 USA.; Horowitz, S; Bardwell, JCA (reprint author), Howard Hughes Med Inst, Ann Arbor, MI USA. EM horowsah@umich.edu; jbardwel@umich.edu OI van den Bedem, Henry/0000-0003-2358-841X FU US DOE [DE-AC02-06CH1135]; Michigan Economic Development Corporation; Michigan Technology Tri-Corridor [085P1000817]; NRSA National Institutes of Health (NIH) grant [GM108298]; Boehringer Ingelheim Fonds fellowship; National Natural Science Foundation of China (NSFC) grant [31400664]; Shanghai Pujiang Program; NIH grant [GM102829, GM107233, 1P01 GM063210]; Phenix Industrial Consortium; US Department of Energy [DE-AC02-05CH11231]; NSF grant [CHE1506273]; Howard Hughes Medical Institute Investigator FX The authors would like to thank J. Smith, D. Akey, U. Jakob, D. Smith, Z. Wawrzak, and F. Stull for critical comments and suggestions. Use of the Advanced Photon Source, an Office of Science User Facility operated for the US Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the US DOE under contract no. DE-AC02-06CH11357. Use of the LS-CAT Sector 21 was supported by the Michigan Economic Development Corporation and the Michigan Technology Tri-Corridor (grant 085P1000817). This work was funded by an NRSA National Institutes of Health (NIH) grant GM108298 (L.S.A.), a Boehringer Ingelheim Fonds fellowship (P.K.), a National Natural Science Foundation of China (NSFC) grant 31400664 (S.Q.), the Shanghai Pujiang Program (S.Q.), NIH grant GM102829 (J.C.A.B.), NIH grant GM107233 (C.L.B.), NIH grant 1P01 GM063210 (P.V.), the Phenix Industrial Consortium and the US Department of Energy Contract No. DE-AC02-05CH11231 (RV.) and NSF grant CHE1506273 (C.L.B.). J.C.A.B. is supported as a Howard Hughes Medical Institute Investigator. NR 33 TC 4 Z9 4 U1 13 U2 23 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1545-9993 EI 1545-9985 J9 NAT STRUCT MOL BIOL JI Nat. Struct. Mol. Biol. PD JUL PY 2016 VL 23 IS 7 BP 691 EP 697 DI 10.1038/nsmb.3237 PG 7 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA DQ7DX UT WOS:000379368200011 PM 27239796 ER PT J AU Binks, O Meir, P Rowland, L da Costa, ACL Vasconcelos, SS de Oliveira, AAR Ferreira, L Christoffersen, B Nardini, A Mencuccini, M AF Binks, Oliver Meir, Patrick Rowland, Lucy Lola da Costa, Antonio Carlos Silva Vasconcelos, Steel Antonio Ribeiro de Oliveira, Alex Ferreira, Leandro Christoffersen, Bradley Nardini, Andrea Mencuccini, Maurizio TI Plasticity in leaf-level water relations of tropical rainforest trees in response to experimental drought SO NEW PHYTOLOGIST LA English DT Article DE Amazon rainforest; experimental drought; leaf anatomy; osmotic adjustment; plasticity; water relations ID ABOVEGROUND LIVE BIOMASS; SOIL-MOISTURE DEFICIT; MIXED-EFFECTS MODELS; TURGOR LOSS POINT; DRY-SEASON; CLIMATE; TRANSPORT; LEAVES; PRESSURE; HYDRAULICS AB The tropics are predicted to become warmer and drier, and understanding the sensitivity of tree species to drought is important for characterizing the risk to forests of climate change. This study makes use of a long-term drought experiment in the Amazon rainforest to evaluate the role of leaf-level water relations, leaf anatomy and their plasticity in response to drought in six tree genera. The variables (osmotic potential at full turgor, turgor loss point, capacitance, elastic modulus, relative water content and saturated water content) were compared between seasons and between plots (control and through-fall exclusion) enabling a comparison between short- and long-term plasticity in traits. Leaf anatomical traits were correlated with water relation parameters to determine whether water relations differed among tissues. The key findings were: osmotic adjustment occurred in response to the long-term drought treatment; species resistant to drought stress showed less osmotic adjustment than drought-sensitive species; and water relation traits were correlated with tissue properties, especially the thickness of the abaxial epidermis and the spongy mesophyll. These findings demonstrate that cell-level water relation traits can acclimate to long-term water stress, and highlight the limitations of extrapolating the results of short-term studies to temporal scales associated with climate change. C1 [Binks, Oliver; Meir, Patrick; Rowland, Lucy; Mencuccini, Maurizio] Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3FE, Midlothian, Scotland. [Meir, Patrick] Australian Natl Univ, Res Sch Biol, Canberra, ACT 2601, Australia. [Lola da Costa, Antonio Carlos; Antonio Ribeiro de Oliveira, Alex] Fed Univ Para, Ctr Geosci, BR-66075110 Belem, Para, Brazil. [Silva Vasconcelos, Steel] EMBRAPA Amazonia Oriental, BR-66095903 Belem, Para, Brazil. [Ferreira, Leandro] Museu Paraense Emilio Goeldi, BR-66077830 Belem, Para, Brazil. [Christoffersen, Bradley] Los Alamos Natl Lab, Earth & Environm Sci, Los Alamos, NM 87545 USA. [Nardini, Andrea] Univ Trieste, Dipartimento Sci Vita, Via L Giorgieri 10, I-34127 Trieste, Italy. [Mencuccini, Maurizio] CREAF, ICREA, Cerdanyola Del Valles 08193, Spain. RP Binks, O (reprint author), Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3FE, Midlothian, Scotland. EM O.Binks@ed.ac.uk RI Nardini, Andrea/C-6525-2009; Mencuccini, Maurizio/B-9052-2011; Binks, Oliver/Q-7821-2016 OI Mencuccini, Maurizio/0000-0003-0840-1477; Binks, Oliver/0000-0002-6291-3644 FU UK Natural Environment Research Council [NE/J011002/1]; ARC [FT110100457]; EU FP7 Research Consortium 'Amazalert' FX This work was a product of a UK Natural Environment Research Council PhD studentship tied to grant NE/J011002/1 to P.M. and M.M. P.M. also gratefully acknowledges support from ARC FT110100457 and the EU FP7 Research Consortium 'Amazalert'. NR 59 TC 3 Z9 3 U1 19 U2 49 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 2016 VL 211 IS 2 BP 477 EP 488 DI 10.1111/nph.13927 PG 12 WC Plant Sciences SC Plant Sciences GA DQ4ZI UT WOS:000379213200012 PM 27001030 ER PT J AU van Hecke, H AF van Hecke, H. CA PHENIX Collaboration TI Hard Probe Results from PHENIX SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ ID DETECTOR AB We report on selected recent results from the PHENIX collaboration. For thermal photons, total yields and flow coefficients in root s(NN) = 200 GeV Au+Au collisions are reported. Results from small systems (d+Au and He-3+Au) colliding at root s(NN) = 200 GeV show collective behavior for transverse momenta up to approximately 6 GeV/c. How small systems develop collective behavior remains a challenge for modelers. C1 [van Hecke, H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP van Hecke, H (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 9 TC 0 Z9 0 U1 2 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 7 EP 10 DI 10.1016/j.nuclphysbps.2016.05.003 PG 4 GA DQ5ZD UT WOS:000379282900003 ER PT J AU Kang, ZB AF Kang, Zhong-Bo TI Recent developments in NLO corrections to in-medium jets SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE jet quenching; next-to-leading order; effective field theory; QCD evolution ID PB-PB COLLISIONS; CHARGED-PARTICLE PRODUCTION; LARGE TRANSVERSE-MOMENTUM; ROOT-S(NN)=2.76 TEV; CENTRALITY DEPENDENCE; INCLUSIVE JET; SUPPRESSION; GLUONS; PP AB We present some recent progress in studying the jet quenching phenomena. In the first part of the talk, we study how to improve the standard energy loss picture by going beyond the "soft-gluon" (small-x) approximation and formulating the multi-gluon emission through the usual DGLAP evolution equations in the nuclear medium. We demonstrate that the numerical results based on such an approach describe well the suppression of single hadron production in A+A collisions at the LHC. In the second part of the talk, we present how to study the next-to-leading order corrections to the energy loss formalism. In particular, we compute the full next-to-leading order QCD corrections to the transverse momentum broadening in both e+A and p+A collisions, from which we identify a QCD evolution equation for the related quark-gluon correlation function, in turn, the QCD evolution of jet transport parameter (q) over cap. C1 [Kang, Zhong-Bo] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Kang, ZB (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Kang, Zhongbo/P-3645-2014 NR 52 TC 0 Z9 0 U1 2 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 48 EP 53 DI 10.1016/j.nuclphysbps.2016.05.010 PG 6 GA DQ5ZD UT WOS:000379282900010 ER PT J AU Dong, X AF Dong, Xin TI Recent Developments in Open Heavy Flavor Experiments SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE open heavy flavor; heavy quark diffusion; nuclear modification factor; elliptic flow; silicon pixel detector AB Heavy quark program has been one of the focused programs at RHIC and LHC to study detail properties of strongly coupled Quark-Gluon Plasma (sQGP). I will review recent experimental achievements on open heavy flavor production in heavy ion collisions, including measurements of nuclear modification factors, elliptic flow and heavy quark triggered correlations. By comparing with most sophisticated theoretical models, I will comment on physics implications on current understanding of sQGP medium properties. In the end, I will discuss future plans of utilizing heavy flavor quarks to probe emergent QCD properties in heavy ion collisions at both RHIC and LHC. C1 [Dong, Xin] Lawrence Berkeley Natl Lab, Div Nucl Sci, MS70R0319,One Cyclotron Rd, Berkeley, CA 94720 USA. RP Dong, X (reprint author), Lawrence Berkeley Natl Lab, Div Nucl Sci, MS70R0319,One Cyclotron Rd, Berkeley, CA 94720 USA. NR 17 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 54 EP 59 DI 10.1016/j.nuclphysbps.2016.05.011 PG 6 GA DQ5ZD UT WOS:000379282900011 ER PT J AU Cao, SS AF Cao, Shanshan TI Transport Theory of Heavy Flavor in Relativistic Nuclear Collisions SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE relativistic nuclear collisions; heavy flavor; transport theory ID ENERGY-LOSS; QUARKS; LHC AB A short overview is presented for the recent progress in the theory of heavy flavor transport in ultra-relativistic nuclear collisions, including a summary of different transport models, their phenomenological results of heavy meson quenching and flow at RHIC and LHC, a possible solution to the R-AA vs. V-2 puzzle and predictions for heavy flavor observables beyond the current measurements. C1 [Cao, Shanshan] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Cao, SS (reprint author), Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. NR 49 TC 1 Z9 1 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 60 EP 65 DI 10.1016/j.nuclphysbps.2016.05.012 PG 6 GA DQ5ZD UT WOS:000379282900012 ER PT J AU Perepelitsa, DV AF Perepelitsa, Dennis V. TI Hard probes of small systems SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ ID P-PB COLLISIONS; ROOT-S(NN)=5.02 TEV; PPB COLLISIONS; JET PRODUCTION; ROOT(NN)-N-S=5.02 TEV; DISTRIBUTIONS; DEPENDENCE; CENTRALITY; COLLIDER; EVENTS AB This proceedings discusses the experimental status of high-pT jet, hadron, and electroweak boson production measurements in proton and deuteron nucleus (p/d+A) collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC), with an emphasis on results presented for the first time at the Hard and Electromagnetic Probes conference at McGill University in June 2015. C1 [Perepelitsa, Dennis V.] Brookhaven Natl Lab, Phys Bldg, Upton, NY 11973 USA. RP Perepelitsa, DV (reprint author), Brookhaven Natl Lab, Phys Bldg, Upton, NY 11973 USA. NR 42 TC 0 Z9 0 U1 2 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 78 EP 83 DI 10.1016/j.nuclphysbps.2016.05.015 PG 6 GA DQ5ZD UT WOS:000379282900015 ER PT J AU Kharzeev, DE AF Kharzeev, Dmitri E. TI Entropic destruction of heavy quarkonium in the quark-gluon plasma SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE quark-gluon plasma; heavy quarkonium; entropy; holography ID J/PSI SUPPRESSION; STRING THEORY; COLLISIONS; LEPTONS; PHOTONS; PSIONS; ENERGY; QCD AB The excitations of a bound state immersed in a strongly coupled system are often delocalized and characterized by a large entropy, so that the state is strongly entangled with the rest of the statistical system. If this entropy S increases with the separation r between the constituents of the bound state, S = S (r), then the resulting entropic force F = T partial derivative S/partial derivative r (T is temperature) can drive the dissociation process. Lattice QCD indicates a large amount of entropy associated with the heavy quark pair in strongly coupled quark-gluon plasma. This entropy S (r) peaks at temperatures 0.9 T-c <= T <= 1.5 T-c (T-c is the deconfinement temperature) and grows with the inter-quark distance r. This peak in the holographic description arises because the heavy quark pair acts as an eyewitness to the black hole formation in the bulk - the process that describes the deconfinement transition. In terms of the boundary theory, this entropy likely emerges from the entanglement of a "long string" connecting the quark and antiquark with the rest of the system. We argue that the entropic mechanism results in an anomalously strong quarkonium suppression in the temperature range near T-c. This entropic destruction may thus explain why the experimentally measured quarkonium nuclear modification factor at RHIC (lower energy density) is smaller than at LHC (higher energy density), possibly resolving the "quarkonium suppression puzzle" - all of the previously known mechanisms of quarkonium dissociation operate more effectively at higher energy densities, and this contradicts the data. C1 [Kharzeev, Dmitri E.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA. RP Kharzeev, DE (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.; Kharzeev, DE (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.; Kharzeev, DE (reprint author), Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA. NR 40 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 90 EP 95 DI 10.1016/j.nuclphysbps.2016.05.017 PG 6 GA DQ5ZD UT WOS:000379282900017 ER PT J AU Schenke, B AF Schenke, Bjoern TI Theory @ Hard Probes 2015 SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Heavy Ion Collisions; Quark Gluon Plasma; Quantum Chromodynamics ID RADIATIVE ENERGY-LOSS; QUARK-GLUON PLASMA; JET PRODUCTION; COLLISIONS; QCD; CENTRALITY; DYNAMICS; MATTER; LHC AB Overview of the latest theory developments presented at the Hard Probes 2015 conference, held at McGill University, Montreal, Canada, in July 2015. C1 [Schenke, Bjoern] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Schenke, B (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 92 TC 0 Z9 0 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 103 EP 110 DI 10.1016/j.nuclphysbps.2016.05.019 PG 8 GA DQ5ZD UT WOS:000379282900019 ER PT J AU Vujanovic, G Shen, C Denicol, GS Schenke, B Jeon, S Gale, C AF Vujanovic, Gojko Shen, Chun Denicol, Gabriel S. Schenke, Bjoern Jeon, Sangyong Gale, Charles TI Probing the dissipative properties of a strongly interacting medium with dileptons SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Dilepton radiation; dissipative hydrodynamics; diffusion of net baryon number density; net baryon number conductivity; RHIC Beam Energy Scan Program AB We investigate the effects of the presence of a non-vanishing net baryon number density and its diffusion on dilepton production, within a hydrodynamical description of the medium created at root S-NN = 7.7 GeV collision energy. This energy value is explored within the Beam Energy Scan (BES) program at Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. Particular attention is devoted to a new dissipative degree of freedom: the net baryon number diffusion (V-mu), and to the net baryon number conductivity (kappa) - a transport coefficients governing the overall magnitude of V-mu. The effects of kappa on dilepton production are assessed, with an outlook on how future experimental dilepton data can be used to learn more about kappa. C1 [Vujanovic, Gojko; Shen, Chun; Denicol, Gabriel S.; Jeon, Sangyong; Gale, Charles] McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada. [Denicol, Gabriel S.; Schenke, Bjoern] Brookhaven Natl Lab, Dept Phys, Bldg 510A, Upton, NY 11973 USA. RP Vujanovic, G (reprint author), McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada. RI Silveira Denicol, Gabriel/L-5048-2016 NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 113 EP 114 DI 10.1016/j.nuclphysbps.2016.05.021 PG 2 GA DQ5ZD UT WOS:000379282900021 ER PT J AU Vogt, R AF Vogt, R. TI Nuclear Modification of Quarkonium Production in p plus Pb Collisions at the LHC SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ ID PARTON DISTRIBUTIONS AB We make a systematic study of the modifications of J/Psi and Upsilon(1S) production in p+Pb collisions at root s(NN) = 5 TeV at the LHC. We compare the uncertainties in the EPS09 shadowing parameterization to the calculated mass and scale uncertainties obtained employing the EPS09 NLO central set. We study the dependence of the results on the proton parton density and the choice of the nuclear modifications. We check whether the results obtained are consistent at leading and next-to-leading order. We determine whether the calculated AA results can be factorized into the convolution of results from pA and Ap collisions. The calculations are compared to the available ALICE and LHCb nuclear modification factors, R-pA(y) and R-pA(pT), as well as the forward-backward asymmetries, R-FB(y) and R-FB(p(T)). C1 [Vogt, R.] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94551 USA. [Vogt, R.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. RP Vogt, R (reprint author), Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94551 USA.; Vogt, R (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. NR 17 TC 0 Z9 0 U1 2 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 153 EP 156 DI 10.1016/j.nuclphysbps.2016.05.032 PG 4 GA DQ5ZD UT WOS:000379282900032 ER PT J AU Luo, T He, YY Wang, EK Wang, XN AF Luo, Tan He, Yayun Wang, Enke Wang, Xin-Nian TI Medium Recoil and Jet Modification in Heavy Ion Collisions SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Jet quenching; Boltzmann Transport; quark-gluon plasma AB A complete set of elastic processes and induced gluon radiation within the higher-twist approach have been implemented in the Linear Boltzmann Transport model for jet propagation and interaction with quark-gluon plasma in high-energy heavy-ion collisions. We impose global energy momentum conservation in the 2 -> n processes of induced radiation which will influence the final gluon spectra. We will compare the elastic and the radiative energy loss of partons and their effects on reconstructed jets. The energy loss of a leading parton is found to have a quadratic distance dependence only for a short distance, but will have much weak distance dependence because of the accumulated energy loss and the strong energy dependence of the local energy loss rate. Since reconstructed jets recover some of the energy lost by the leading parton, the quadratic path length dependence persists for a longer distance. The spatial distribution and time evolution of the jet-induced medium excitation are also discussed. C1 [Luo, Tan; He, Yayun; Wang, Enke; Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China. [Luo, Tan; He, Yayun; Wang, Enke; Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Wang, Xin-Nian] Lawrence Berkeley Natl Lab, Nucl Sci Div MS70R0319, Berkeley, CA 94720 USA. RP Luo, T (reprint author), Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.; Luo, T (reprint author), Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. NR 10 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 169 EP 172 DI 10.1016/j.nuclphysbps.2016.05.036 PG 4 GA DQ5ZD UT WOS:000379282900036 ER PT J AU Abir, R Cao, SS Majumder, A Qin, GY AF Abir, Raktim Cao, Shanshan Majumder, Abhijit Qin, Guang-You TI Drag induced radiative energy loss of semi-hard heavy quarks SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE energy loss; drag; heavy-quark; bremsstrahlung radiation AB We revisited gluon bremsstrahlung off a heavy quark in nuclear matter within higher twist formalism. In this work, we demonstrate that, in addition to transverse momentum diffusion parameter ((q) over cap), the gluon emission spectrum for a heavy quark is quite sensitive to (e) over cap, which quantify the amount of light-cone drag experienced by a parton. This effect leads to an additional energy loss term for heavy-quarks. From heavy flavor suppression data in ultra-relativistic heavy-ion collisions one can now estimate the value of this sub-leading non-perturbative jet transport parameter ((e) over cap) from our results. C1 [Abir, Raktim; Majumder, Abhijit] Wayne State Univ, Dept Phys & Astron, 666 W Hancock St, Detroit, MI 48201 USA. [Cao, Shanshan] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Qin, Guang-You] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Qin, Guang-You] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China. RP Abir, R (reprint author), Wayne State Univ, Dept Phys & Astron, 666 W Hancock St, Detroit, MI 48201 USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 177 EP 180 DI 10.1016/j.nuclphysbps.2016.05.038 PG 4 GA DQ5ZD UT WOS:000379282900038 ER PT J AU Qiu, H AF Qiu, Hao CA STAR Collaboration TI Open charm hadron measurements at STAR SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE open charm; nuclear modification factor; Heavy Flavor Tracker ID QCD MATTER; HEAVY; COLLISIONS; MESONS AB The interaction of the charm quark with the QCD medium created in heavy-ion collisions is sensitive to the medium properties. At the STAR experiment, charm quarks can be studied through open charm hadrons, such as D-0 and D*(+/-). We report various measurements of p(T) spectra of open charm mesons in p+p, Au+Au and U+U collisions and the nuclear modification factors (R-AA) extracted from these results. The measured D meson p(T) spectrum in p+p collisions is consistent with FONLL calculations within uncertainties. In Au+Au and U+U collisions, a significant suppression at high p(T) and indication of enhancement at intermediate p(T) are observed for D-0 production, which can be described by model calculations with strong charm-medium interaction and coalescence hadronization. In order to improve open heavy flavor measurements, a new Heavy Flavor Tracker (HFT) detector has been built and installed into STAR successfully before the RHIC year 2014 running. The signal significance of reconstructed D-0 has been enhanced tremendously with the HFT. C1 [Qiu, Hao; STAR Collaboration] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Qiu, H (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 20 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 213 EP 216 DI 10.1016/j.nuclphysbps.2016.05.047 PG 4 GA DQ5ZD UT WOS:000379282900047 ER PT J AU Monnai, A AF Monnai, Akihiko TI Chemically non-equilibrated QGP and thermal photon elliptic flow SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Heavy-ion collisions; Quark-gluon plasma; Photons; Chemical equilibration ID GLUON DISTRIBUTION-FUNCTIONS; NUCLEAR COLLISIONS; COLLECTIVE FLOW; QUARK; QCD AB It has been discovered in recent heavy-ion experiments that elliptic and triangular flow of direct photons are underpredicted by most hydrodynamic models. I discuss possible enhancement mechanisms based on late chemical equilibration of the QGP and in-medium modification of parton distributions. Numerical hydrodynamic analyses indicate that they suppress early photon emission and visibly enhance thermal photon elliptic flow. C1 [Monnai, Akihiko] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Monnai, A (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. NR 20 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 233 EP 236 DI 10.1016/j.nuclphysbps.2016.05.052 PG 4 GA DQ5ZD UT WOS:000379282900052 ER PT J AU Ma, RR AF Ma, Rongrong CA STAR Collaboration TI Measurement of J/psi production in p plus p collisions at root s=500 GeV at STAR experiment SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE J/psi; Event Activity; STAR; MTD ID TEV AB Quarkonium measurements in heavy-ion collisions play an essential role in understanding the hot, dense medium created in such collisions. As a reference, their production mechanism in p + p collisions needs to be thoroughly understood. In this paper, we report the measurement of inclusive cross section of J/psi with transverse momentum (p(T)) above 4 GeV/c at mid-rapidity in p + p collisions at root s = 500 GeV by the STAR experiment. The ratio of the yield of psi(2S) to J/psi integrated over 4 < p(T) < 12 GeV/c is also presented. Furthermore, the J/psi yields are studied in different event multiplicity bins in different J/psi p(T) regions, where the low p(T) measurement is enabled by the newly installed Muon Telescope Detector. A strong increase of the relative J/psi yield with the event multiplicity is observed for all p(T) with significant p(T) dependence. C1 [Ma, Rongrong; STAR Collaboration] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Ma, RR (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 261 EP 264 DI 10.1016/j.nuclphysbps.2016.05.059 PG 4 GA DQ5ZD UT WOS:000379282900059 ER PT J AU Xing, HX Huang, JR Kang, ZB Vitev, I AF Xing, Hongxi Huang, Jinrui Kang, Zhong-Bo Vitev, Ivan TI Quenching of inclusive and tagged b-jets at the LHC SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Jet quenching; b-jets; heavy flavor AB We present theoretical predictions for the nuclear-induced attenuation of the differential cross sections for inclusive and tagged b-jet production in heavy ion collisions at the LHC. We find that for inclusive b-jet production at high transverse momentum the mass effects are negligible, and that the attenuation is comparable to the one observed for light jets. On the other hand, for isolated-photon and B-meson-tagged b-jets the sample of events with heavy quarks produced at the early stages of the collision is greatly enhanced. Thus, these tagged b-jet final-states have a much more direct connection to the physics of b-quark energy loss. We present theoretical predictions for the quenching of such tagged b-jet events at the LHC and the QGP-induced modification of the related momentum imbalance and asymmetry. We demonstrate that these tagged processes can be used to accurately study the physics of heavy quark production and propagation in dense QCD matter. C1 [Xing, Hongxi; Huang, Jinrui; Kang, Zhong-Bo; Vitev, Ivan] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Xing, HX (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Kang, Zhongbo/P-3645-2014 NR 13 TC 0 Z9 0 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 281 EP 284 DI 10.1016/j.nuclphysbps.2016.05.064 PG 4 GA DQ5ZD UT WOS:000379282900064 ER PT J AU Hattori, K Itakura, K AF Hattori, Koichi Itakura, Kazunori TI Photon and dilepton spectra from nonlinear QED effects in supercritical magnetic fields induced by heavy-ion collisions SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ DE Supercritical magnetic field; Vacuum birefringence; Real-photon decay; Photon splitting ID VACUUM BIREFRINGENCE; POLARIZATION AB We discuss properties of photons in extremely strong magnetic fields induced by the relativistic heavy-ion collisions. We investigate the vacuum birefringence, the real-photon decay, and the photon splitting which are all forbidden in the ordinary vacuum, but become possible in strong magnetic fields. These effects potentially give rise to anisotropies in photon and dilepton spectra. C1 [Hattori, Koichi] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Hattori, Koichi] RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan. [Itakura, Kazunori] High Energy Accelerator Res Org, IPNS, KEK Theory Ctr, Oho, Ibaraki 3050801, Japan. [Itakura, Kazunori] Grad Univ Adv Studies SOKENDAI, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan. RP Hattori, K (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.; Hattori, K (reprint author), RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan. EM koichi.hattori@riken.jp; kazunori.itakura@kek.jp NR 20 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 313 EP 316 DI 10.1016/j.nuclphysbps.2016.05.072 PG 4 GA DQ5ZD UT WOS:000379282900072 ER PT J AU Steinberg, P AF Steinberg, Peter CA ATLAS Collaboration TI Measurement of the dependence of transverse energy production at large pseudorapidity on the hard scattering kinematics of proton-proton collisions at root s=2.76 TeV with the ATLAS detector SO NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS LA English DT Proceedings Paper CT 7th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions CY JUN 29-JUL 03, 2015 CL McGill Univ, Montreal, CANADA SP McGill Univ, Dept Phys, Fac Sci, Canadian Inst Nucl Phys, TRIUMF, Brookhaven Natl Lab, CERN, ExtreMe Matter Inst, Cent China Normal Univ, Inst Particle Phys, Lawrence Berkeley Natl Lab, Lawrence Livermore Natl Lab, Los Alamos Natl Lab, Oak Ridge Natl Lab HO McGill Univ ID LEAD COLLISIONS; CENTRALITY; EVENTS AB The relationship between jet production in the central region and the underlying event activity in a pseudorapidity-separated region is studied in 4.0 pb(-1) of root s = 2.76 TeV pp events recorded with the ATLAS detector at the LHC. The hard scattering is characterised by the average transverse momentum and pseudorapidity of the two highest transverse momentum jets in the event. Results are also presented as a function of the scaled longitudinal momenta of the hard scattered partons in the target and projectile beam-protons. Transverse energy production at large pseudorapidity is observed to vary strongly with the longitudinal momentum fraction in the target proton and only weakly with that in the projectile proton. C1 [Steinberg, Peter] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Steinberg, P (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2405-6014 EI 1873-3832 J9 NUCL PART PHYS P JI Nucl. Part. Phys. Proc. PD JUL-SEP PY 2016 VL 276 BP 357 EP 360 DI 10.1016/j.nuclphysbps.2016.05.083 PG 4 GA DQ5ZD UT WOS:000379282900083 ER PT J AU Yang, DL Pacheco, R Edwards, S Henderson, K Wu, RL Labouriau, A Stark, P AF Yang, Dali Pacheco, Robin Edwards, Stephanie Henderson, Kevin Wu, Ruilian Labouriau, Andrea Stark, Peter TI Thermal stability of a eutectic mixture of bis(2,2-dinitropropyl) acetal and formal: Part A. Degradation mechanisms in air and under nitrogen atmosphere SO POLYMER DEGRADATION AND STABILITY LA English DT Article DE Nitroplasticizer; BDNPA; BDNPF; Stability; Degradation; Condensed phase ID POLY(ESTER URETHANE) ELASTOMER; DECOMPOSITION AB We investigated the chemical and thermal stability of a eutectic mixture of bis(2,2-dinitropropyl) acetal (BDNPA) and formal (BDNPF) (referred to as NP) in various environments at temperatures below 70 degrees C. Changes in the chemical composition of samples aged up to two years were characterized using TGA, FTIR, GPC, ESI-MS, and H-1 NMR spectroscopies. The results show that the initial signs of NP degradation can be detected as early as in 12 months at 70 degrees C in air. The initial step in the degradation is the elimination of HONO molecules, followed by the formation of nitroso-alcohol isomers. While temperature plays a key role in determining the degradation kinetics of the initial stages, the absence or presence of oxygen determines the types and formation rates of various isomers and intermediates during thermal decomposition. In addition, oxygen accelerates the decomposition of the isomers and intermediates, whereas nitrogen has a stabilizing effect. BDNPA shows higher reactivity than BDNPF regardless of the aging conditions, which is attributed to the presence of an extra methyl group in its structure. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Yang, Dali; Pacheco, Robin; Edwards, Stephanie; Henderson, Kevin] Los Alamos Natl Lab, Div Mat Sci & Technol, MST 7,MS E549, Los Alamos, NM 87545 USA. [Wu, Ruilian] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. [Labouriau, Andrea; Stark, Peter] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. RP Yang, DL (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MST 7,MS E549, Los Alamos, NM 87545 USA. EM dyang@lanl.gov OI Labouriau, Andrea/0000-0001-8033-9132 FU enhanced Surveillance Campaign (C8); US Department of Energy's National Nuclear Security Administration [DE-AC52-06NA25396] FX The authors would like to thank Milan Sykora and Sheldon Larson for fruitful discussions and suggestions for this study. This work is funded by enhanced Surveillance Campaign (C8) and the US Department of Energy's National Nuclear Security Administration under the contract DE-AC52-06NA25396. NR 35 TC 1 Z9 1 U1 5 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0141-3910 EI 1873-2321 J9 POLYM DEGRAD STABIL JI Polym. Degrad. Stabil. PD JUL PY 2016 VL 129 BP 380 EP 398 DI 10.1016/j.polymdegradstab.2016.05.017 PG 19 WC Polymer Science SC Polymer Science GA DQ7FL UT WOS:000379372200040 ER PT J AU Ferreira, FAS Battirola, LC Lewicki, JP Worsley, MA Pereira-da-Silva, MA Amaral, T Lepienski, CM Rodrigues, UP AF Ferreira, Fabio A. S. Battirola, Liliane C. Lewicki, James P. Worsley, Marcus A. Pereira-da-Silva, Marcelo A. Amaral, Thiago Lepienski, Carlos M. Rodrigues-Filho, Ubirajara P. TI Influence of thermal treatment time on structural and physical properties of polyimide films at beginning of carbonization SO POLYMER DEGRADATION AND STABILITY LA English DT Article DE Polyimide; Carbon-rich derivatives; Thermal degradation; Structural rearrangement ID KAPTON((R)) POLYIMIDE; GRAPHENE SHEETS; EVOLUTION; MEMBRANES; POLYMER; SURFACE; CARBON; CRYSTALLIZATION; INTERMEDIATE; DEGRADATION AB Poly(4,4'-oxydiphenylene-oxydiphthalimide) (POO) was thermally treated at 773 K for 1, 15 and 60 min under argon atmosphere resulting in free-standing films with intermingled characteristics between polymer and carbon-rich derivatives. Degradative thermal analysis performed by pyrolysis-gas chromatography/mass spectroscopy (Py-GC/MS) revealed CO2 among the major products of thermal decomposition which according to electron paramagnetic resonance (EPR) passed through a radical process. X-ray diffraction (XRD) revealed thermal treated samples with semicrystalline organization that was attributed to the development of lamellae structure. Moreover, Atomic force microscopy (AFM) showed an increase in the roughness of the samples that acquired pronounced roughcast-like surface. Hence, there was an enhancement of mechanical strength and dielectric permittivity. From the data collected a mechanism of thermal decomposition was proposed. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Ferreira, Fabio A. S.; Rodrigues-Filho, Ubirajara P.] Univ Sao Paulo, Grp Quim Mat Hibridos & Inorgan, Inst Quim Sao Carlos, BR-13563120 Sao Carlos, SP, Brazil. [Battirola, Liliane C.] Univ Estadual Campinas, Inst Quim, Campinas, SP, Brazil. [Lewicki, James P.; Worsley, Marcus A.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA. [Pereira-da-Silva, Marcelo A.] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil. [Pereira-da-Silva, Marcelo A.] UNICEP, Ctr Univ Cent Paulista, BR-13563470 Sao Carlos, SP, Brazil. [Amaral, Thiago] Univ Sao Paulo, Inst Fis Sao Carlos, Grp Crescimento Cristais & Mat Ceram, BR-13560970 Sao Carlos, SP, Brazil. [Lepienski, Carlos M.] Univ Fed Parana, Dept Fis, BR-80060000 Curitiba, Parana, Brazil. RP Ferreira, FAS (reprint author), Univ Sao Paulo, Grp Quim Mat Hibridos & Inorgan, Inst Quim Sao Carlos, BR-13563120 Sao Carlos, SP, Brazil. EM ferreira.fabio.a.s@gmail.com RI Pereira-da-Silva, Marcelo/J-6733-2012; Sao Carlos Institute of Physics, IFSC/USP/M-2664-2016; Battirola, Liliane/L-9371-2013; OI Battirola, Liliane/0000-0001-8396-6836; Ferreira, Fabio/0000-0002-6928-8511 FU CNPq [142910/2010-4]; FAPESP [CEPID 2013/07793-6]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Brazilian Synchrotron Light Source (LNLS) [GAR-14024] FX This research work was supported by CNPq (Grant 142910/2010-4) and FAPESP (CEPID 2013/07793-6) and also under auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. The authors acknowledge the Brazilian Synchrotron Light Source (LNLS) for the WAXS experiments (Proposal: GAR-14024), especially Dr. Matheus Cardoso for all assistance on training on the equipment and data manipulation. The authors also acknowledge the Brazilian Agricultural Research Corporation linked to the Ministry of Agriculture, Liverstock, and Food Supply for the collaboration in the T-FTNIR analysis. We also would like to extend thanks to Prof. Dr. Antonio Carlos Hernandes and the technician Geraldo Frigo both from Grupo de Crescimento de Cristais e Materiais Ceramicos of the IFSC for the collaboration in the TGA analysis; to Prof. Dr. Maria do Carmo Goncalves of the Institute of Chemistry of UNICAMP for the collaboration in the SEM analysis, and to the technician Sara Blunk of the Department of Physics of UFPR for the collaboration in the nanoindentation analysis. NR 28 TC 0 Z9 0 U1 22 U2 34 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0141-3910 EI 1873-2321 J9 POLYM DEGRAD STABIL JI Polym. Degrad. Stabil. PD JUL PY 2016 VL 129 BP 399 EP 407 DI 10.1016/j.polymdegradstab.2016.05.001 PG 9 WC Polymer Science SC Polymer Science GA DQ7FL UT WOS:000379372200041 ER PT J AU Benioff, P AF Benioff, Paul TI Effects of a scalar scaling field on quantum mechanics SO QUANTUM INFORMATION PROCESSING LA English DT Article DE Scalar scaling fields; Entangled quantum states; Mathematical structures; Fiber bundles ID COHERENT THEORY; FIBER-BUNDLES; PHYSICS; MATHEMATICS; UNIVERSE AB This paper describes the effects of a complex scalar scaling field on quantum mechanics. The field origin is an extension of the gauge freedom for basis choice in gauge theories to the underlying scalar field. The extension is based on the idea that the value of a number at one space time point does not determine the value at another point. This, combined with the description of mathematical systems as structures of different types, results in the presence of separate number fields and vector spaces as structures, at different space time locations. Complex number structures and vector spaces at each location are scaled by a complex space time dependent scaling factor. The effect of this scaling factor on several physical and geometric quantities has been described in other work. Here the emphasis is on quantum mechanics of one and two particles, their states and properties. Multiparticle states are also briefly described. The effect shows as a complex, nonunitary, scalar field connection on a fiber bundle description of nonrelativistic quantum mechanics. The lack of physical evidence for the presence of this field so far means that the coupling constant of this field to fermions is very small. It also means that the gradient of the field must be very small in a local region of cosmological space and time. Outside this region, there are no restrictions on the field gradient. C1 [Benioff, Paul] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Benioff, P (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM pbenioff@anl.gov FU US Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] FX This material is based upon work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357. NR 35 TC 0 Z9 0 U1 1 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1570-0755 EI 1573-1332 J9 QUANTUM INF PROCESS JI Quantum Inf. Process. PD JUL PY 2016 VL 15 IS 7 BP 3005 EP 3034 DI 10.1007/s11128-016-1312-1 PG 30 WC Physics, Multidisciplinary; Physics, Mathematical SC Physics GA DR0UX UT WOS:000379623500022 ER PT J AU Lin, SC Hatab, NA Gu, BH Chao, BK Li, JH Hsueh, CH AF Lin, Shih-Che Hatab, Nahla A. Gu, Baohua Chao, Bo-Kai Li, Jia-Han Hsueh, Chun-Hway TI Free-standing gold elliptical nanoantenna with tunable wavelength in near-infrared region for enhanced Raman spectroscopy SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID SURFACE-PLASMON RESONANCE; METAL NANOPARTICLE PAIRS; SILVER NANOPARTICLES; BOWTIE NANOANTENNAS; DIMERS; SIZE; HYBRIDIZATION; LITHOGRAPHY; DEPENDENCE; PARTICLES AB The purpose of this work is to present a surface-enhanced Raman scattering (SERS) amplifying antenna for the possible usage in the near-infrared region. Instead of the visible-light range amplifying antenna such as a bowtie, the finite-difference time-domain (FDTD) simulation results indicate that elliptical antenna could provide large electromagnetic field enhancement at near-infrared wavelength by combining the free-standing enhancement property with large aspect ratios of the ellipse geometry. The simulation results consist with the enhancement factors characterized by SERS measurements at the excited wavelength of 785 nm for different aspect ratios and periodicities. In addition to the redshift of the resonance wavelength as the aspect ratio of ellipse increases, the freestanding structure modifies the resonance behavior and the dielectric environment of antenna by elevating the elliptical disk from the substrate. To interpret the simulation results, the analytical solution of resonance wavelength for ellipsoid dimmer is derived based on Lorentz-Mie theory, and comparisons are made between the analytical solution and simulation results. The quasi-static analytical solution provides a way to characterize the resonance behavior of two ellipsoid particles as a function of the gap distance, aspect ratio, and dielectric environment. The electrodynamic analysis for the periodic structure was performed in our FDTD simulations. C1 [Lin, Shih-Che; Chao, Bo-Kai; Hsueh, Chun-Hway] Natl Taiwan Univ, Dept Mat Sci & Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan. [Hatab, Nahla A.] Univ Tennessee, Dept Chem, 552 Buehler Hall,1420 Circle Dr, Knoxville, TN 37996 USA. [Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, POB 2008,MS 6036, Oak Ridge, TN 37831 USA. [Gu, Baohua] Oak Ridge Natl Lab, Div Technol, POB 2008,MS 6036, Oak Ridge, TN 37831 USA. [Li, Jia-Han] Natl Taiwan Univ, Dept Engn Sci & Ocean Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan. RP Hsueh, CH (reprint author), Natl Taiwan Univ, Dept Mat Sci & Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan. EM hsuehc@ntu.edu.tw FU Ministry of Science and Technology, Taiwan [MOST 103-2221-E-002-076-MY3]; Excellent Research Projects of National Taiwan University [104R8918]; DOE Scientific User Facilities Division FX The analytical derivation and simulation work were jointly supported by the Ministry of Science and Technology, Taiwan under Contract No. MOST 103-2221-E-002-076-MY3 and Excellent Research Projects of National Taiwan University under Project No. 104R8918. The fabrication of the gold elliptical nanoantenna was conducted at the Center for Nanophase Materials Sciences of Oak Ridge National Laboratory sponsored by DOE Scientific User Facilities Division. NR 43 TC 0 Z9 0 U1 15 U2 25 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 2016 VL 122 IS 7 AR 674 DI 10.1007/s00339-016-0168-7 PG 9 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA DQ2AH UT WOS:000379002100045 ER PT J AU Calloway, B AF Calloway, Bond TI Tomorrow's Technology is a Reality Today SO CHEMICAL ENGINEERING PROGRESS LA English DT Editorial Material C1 [Calloway, Bond] Savannah River Natl Lab, Aiken, SC USA. RP Calloway, B (reprint author), Savannah River Natl Lab, Aiken, SC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 3 PARK AVE, NEW YORK, NY 10016-5901 USA SN 0360-7275 EI 1945-0710 J9 CHEM ENG PROG JI Chem. Eng. Prog. PD JUL PY 2016 VL 112 IS 7 BP 32 EP 32 PG 1 WC Engineering, Chemical SC Engineering GA DQ1VK UT WOS:000378988300015 ER PT J AU Satyapal, S Vora, S AF Satyapal, Sunita Vora, Shailesh TI Establishing the Fuel Cell Industry SO CHEMICAL ENGINEERING PROGRESS LA English DT Article C1 [Satyapal, Sunita] US DOE, Fuel Cell Technol Off, 1000 Independence Ave SW, Washington, DC 20585 USA. [Vora, Shailesh] US DOE, Natl Energy Technol Lab, 626 Cochrans Mill Rd, Pittsburgh, PA 15236 USA. RP Satyapal, S (reprint author), US DOE, Fuel Cell Technol Off, 1000 Independence Ave SW, Washington, DC 20585 USA. NR 4 TC 0 Z9 0 U1 1 U2 1 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 3 PARK AVE, NEW YORK, NY 10016-5901 USA SN 0360-7275 EI 1945-0710 J9 CHEM ENG PROG JI Chem. Eng. Prog. PD JUL PY 2016 VL 112 IS 7 BP 38 EP 43 PG 6 WC Engineering, Chemical SC Engineering GA DQ1VK UT WOS:000378988300017 ER PT J AU Reddi, K Elgowainy, A Wang, M AF Reddi, Krishna Elgowainy, Amgad Wang, Michael TI Fuel Cells for Mobile Applications SO CHEMICAL ENGINEERING PROGRESS LA English DT Article C1 [Reddi, Krishna; Elgowainy, Amgad] Argonne Natl Lab, Argonne, IL 60439 USA. [Elgowainy, Amgad] Argonne Natl Lab, Life Cycle Anal, Argonne, IL 60439 USA. [Wang, Michael] Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, Argonne, IL 60439 USA. RP Reddi, K (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. FU Fuel Cell Technologies Office of the U.S. Dept. of Energy's (DOE) Office of Energy Efficiency and Renewable Energy [DE-AC02-06CH11357] FX The work on which this article is based was supported by the Fuel Cell Technologies Office of the U.S. Dept. of Energy's (DOE) Office of Energy Efficiency and Renewable Energy under Contract No. DE-AC02-06CH11357. NR 8 TC 0 Z9 0 U1 2 U2 2 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 3 PARK AVE, NEW YORK, NY 10016-5901 USA SN 0360-7275 EI 1945-0710 J9 CHEM ENG PROG JI Chem. Eng. Prog. PD JUL PY 2016 VL 112 IS 7 BP 50 EP 54 PG 5 WC Engineering, Chemical SC Engineering GA DQ1VK UT WOS:000378988300019 ER PT J AU Garret, CK Hauck, CD AF Garret, C. Kristopher Hauck, Cory D. TI On the eigenstructure of spherical harmonic equations for radiative transport SO COMPUTERS & MATHEMATICS WITH APPLICATIONS LA English DT Article; Proceedings Paper CT 11th ICMMES Conference CY JUL 14-18, 2014 CL New York, NY DE Spherical harmonics; Radiation transport; Odd/even parity; Eigenstructure ID NEUTRON-TRANSPORT AB The spherical harmonic equations for radiative transport are a linear, hyperbolic set of balance laws that describe the state of a system of particles as they advect through and collide with a material medium. For regimes in which the collisionality of the system is light to moderate, significant qualitative differences have been observed between solutions, based on whether the angular approximation used to derive the equations occurs in a subspace of even or odd degree. This difference can be traced back to the eigenstructure of the coefficient matrices in the advection operator of the hyperbolic system. In this paper, we use classical properties of the spherical harmonic's to examine this structure. In particular, we show how elements in the null space of the coefficient matrices depend on the parity of the spherical harmonic approximation and we relate these results to observed differences in even and odd expansions. (C) 2015 Elsevier Ltd. All rights reserved. C1 [Garret, C. Kristopher; Hauck, Cory D.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. [Hauck, Cory D.] Univ Tennessee, Dept Math, Knoxville, TN 37996 USA. RP Garret, CK (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. EM garrettck@ornl.gov; hauckc@ornl.gov OI Garrett, Charles/0000-0003-1469-3381 NR 14 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0898-1221 EI 1873-7668 J9 COMPUT MATH APPL JI Comput. Math. Appl. PD JUL PY 2016 VL 72 IS 2 BP 264 EP 270 DI 10.1016/j.camwa.2015.05.030 PG 7 WC Mathematics, Applied SC Mathematics GA DQ5YK UT WOS:000379281000003 ER PT J AU Artusa, DR Balzoni, A Beeman, JW Bellini, F Biassoni, M Brofferio, C Camacho, A Capelli, S Cardani, L Carniti, P Casali, N Cassina, L Clemenza, M Cremonesi, O Cruciani, A D'Addabbo, A Dafinei, I Di Domizio, S di Vacri, ML Ferroni, F Gironi, L Giuliani, A Gotti, C Keppel, G Maino, M Mancuso, M Martinez, M Morganti, S Nagorny, S Nastasi, M Nisi, S Nones, C Orio, F Orlandi, D Pagnanini, L Pallavicini, M Palmieri, V Pattavina, L Pavan, M Pessina, G Pettinacci, V Pirro, S Pozzi, S Previtali, E Puiu, A Rusconi, C Schaffner, K Tomei, C Vignati, M Zolotarova, A AF Artusa, D. R. Balzoni, A. Beeman, J. W. Bellini, F. Biassoni, M. Brofferio, C. Camacho, A. Capelli, S. Cardani, L. Carniti, P. Casali, N. Cassina, L. Clemenza, M. Cremonesi, O. Cruciani, A. D'Addabbo, A. Dafinei, I. Di Domizio, S. di Vacri, M. L. Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Keppel, G. Maino, M. Mancuso, M. Martinez, M. Morganti, S. Nagorny, S. Nastasi, M. Nisi, S. Nones, C. Orio, F. Orlandi, D. Pagnanini, L. Pallavicini, M. Palmieri, V. Pattavina, L. Pavan, M. Pessina, G. Pettinacci, V. Pirro, S. Pozzi, S. Previtali, E. Puiu, A. Rusconi, C. Schaffner, K. Tomei, C. Vignati, M. Zolotarova, A. TI First array of enriched (ZnSe)-Se-82 bolometers to search for double beta decay SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID SCINTILLATING BOLOMETERS; TEO2 BOLOMETERS; LIGHT DETECTORS; CUORICINO; SIGNALS; ZNMOO4; MO-100 AB The R&D activity performed during the last years proved the potential of ZnSe scintillating bolometers to the search for neutrino-less double beta decay, motivating the realization of the first large-mass experiment based on this technology: CUPID-0. The isotopic enrichment in Se-82, the (ZnSe)-Se-82 crystals growth, as well as the light detectors production have been accomplished, and the experiment is now in construction at Laboratori Nazionali del Gran Sasso (Italy). In this paper we present the results obtained testing the first three (ZnSe)-Se-82 crystals operated as scintillating bolometers, and we prove that their performance in terms of energy resolution, background rejection capability and intrinsic radiopurity complies with the requirements of CUPID-0. C1 [Artusa, D. R.; D'Addabbo, A.; di Vacri, M. L.; Nisi, S.; Orlandi, D.; Pattavina, L.; Pirro, S.] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Laquila, Italy. [Artusa, D. R.] Univ South Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Balzoni, A.; Bellini, F.; Casali, N.; Cruciani, A.; Ferroni, F.; Martinez, M.; Pettinacci, V.] Sapienza Univ Roma, Dipartimento Fis, I-00185 Rome, Italy. [Balzoni, A.; Bellini, F.; Cardani, L.; Casali, N.; Cruciani, A.; Dafinei, I.; Ferroni, F.; Martinez, M.; Morganti, S.; Orio, F.; Pettinacci, V.; Tomei, C.; Vignati, M.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy. [Beeman, J. W.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Brofferio, C.; Capelli, S.; Carniti, P.; Cassina, L.; Clemenza, M.; Gironi, L.; Gotti, C.; Maino, M.; Nastasi, M.; Pavan, M.; Pozzi, S.; Puiu, A.] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy. [Biassoni, M.; Brofferio, C.; Capelli, S.; Carniti, P.; Cassina, L.; Clemenza, M.; Cremonesi, O.; Gironi, L.; Gotti, C.; Maino, M.; Nastasi, M.; Pavan, M.; Pessina, G.; Pozzi, S.; Previtali, E.; Puiu, A.; Rusconi, C.] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy. [Camacho, A.; Keppel, G.; Palmieri, V.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Padua, Italy. [Cardani, L.] Princeton Univ, Dept Phys, Washington Rd, Princeton, NJ 08544 USA. [Di Domizio, S.; Pallavicini, M.] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy. [Di Domizio, S.; Pallavicini, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Giuliani, A.; Mancuso, M.] Univ Paris Saclay, Univ Paris 11, CSNSM, CNRS,IN2P3, F-91405 Orsay, France. [Giuliani, A.; Mancuso, M.; Rusconi, C.] Univ Insubria, DiSAT, I-22100 Como, Italy. [Nones, C.; Zolotarova, A.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Nagorny, S.; Pagnanini, L.; Schaffner, K.] Ist Nazl Fis Nucl, Gran Sasso Sci Inst, I-67100 Laquila, Italy. [Mancuso, M.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. RP Cardani, L (reprint author), Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy.; Cardani, L (reprint author), Princeton Univ, Dept Phys, Washington Rd, Princeton, NJ 08544 USA. EM laura.cardani@roma1.infn.it RI Gironi, Luca/P-2860-2016; Pattavina, Luca/I-7498-2015; Pagnanini, Lorenzo/E-5348-2016; capelli, silvia/G-5168-2012; Martinez, Maria/K-4827-2012; Casali, Nicola/C-9475-2017; OI Gironi, Luca/0000-0003-2019-0967; Pattavina, Luca/0000-0003-4192-849X; Pagnanini, Lorenzo/0000-0001-9498-5055; capelli, silvia/0000-0002-0300-2752; Martinez, Maria/0000-0002-9043-4691; Casali, Nicola/0000-0003-3669-8247; Gotti, Claudio/0000-0003-2501-9608 FU LUCIFER; ERC under European Union/ERC [247115] FX This work was partially supported by the LUCIFER experiment, funded by ERC under the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement n. 247115, funded within the ASPERA 2nd Common Call for R&D Activities. We are particularly grateful to M. Iannone for its help in all the stages of the detector construction, to M. Guetti for the assistance in the cryogenic operations and to the mechanical workshop of LNGS (in particular E. Tatananni, A. Rotilio, A. Corsi, and B. Romualdi) for continuous and constructive help in the overall set-up design. NR 54 TC 4 Z9 4 U1 5 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6044 EI 1434-6052 J9 EUR PHYS J C JI Eur. Phys. J. C PD JUL 1 PY 2016 VL 76 IS 7 AR 364 DI 10.1140/epjc/s10052-016-4223-5 PG 10 WC Physics, Particles & Fields SC Physics GA DQ4JX UT WOS:000379171200003 PM 28280442 ER PT J AU Sharma, P Tsang, CF Kukkonen, IT Niemi, A AF Sharma, Prabhakar Tsang, Chin-Fu Kukkonen, Ilmo T. Niemi, Auli TI Analysis of 6-year fluid electric conductivity logs to evaluate the hydraulic structure of the deep drill hole at Outokumpu, Finland SO INTERNATIONAL JOURNAL OF EARTH SCIENCES LA English DT Article DE Flowing fluid electric conductivity logging; Long-term monitoring; Deep formation water electrical conductivity; Salinity diffusion; Outokumpu deep drill hole ID LOGGING METHOD; SALINE WATERS; BOREHOLE; PARAMETERS; DEPTH; WELLS; CRUST; SITE; FLOW; GAS AB Over the last two decades, the flowing fluid electric conductivity (FFEC) logging method has been applied in boreholes in the well-testing mode to evaluate the transmissivity, hydraulic head, and formation water electrical conductivity as a function of depth with a resolution of about 10-20 cm. FFEC profiles along the borehole are obtained under both shut-in and pumping conditions in a logging procedure that lasts only 3 or 4 days. A method for analyzing these FFEC logs has been developed and successfully employed to obtain formation parameters in a number of field studies. The present paper concerns the analysis of a unique set of FFEC logs that were taken from a deep borehole reaching down to 2.5 km at Outokumpu, Finland, over a 6-year time period. The borehole intersects paleoproterozoic metasedimentary, granitoid, and ophiolite-derived rocks. After the well was drilled, completed, and cleaned up, FFEC logs were obtained after 7, 433, 597, 948, and 2036 days. In analyzing these five profiles, we discovered the need to account for salinity diffusion from water in the formation to the borehole. Analysis results include the identification of 15 hydraulically conducting zones along the borehole, the calculation of flow rates associated with these 15 zones, as well as the estimation of the variation of formation water electrical conductivity as a function of depth. The calculated flow rates were used to obtain the tentative hydraulic conductivity values at these 15 depth levels. C1 [Sharma, Prabhakar] Nalanda Univ, Sch Ecol & Environm Studies, Nalanda 803116, Bihar, India. [Sharma, Prabhakar; Tsang, Chin-Fu; Niemi, Auli] Uppsala Univ, Dept Earth Sci, Uppsala, Sweden. [Tsang, Chin-Fu] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. [Kukkonen, Ilmo T.] Univ Helsinki, Dept Phys, Helsinki, Finland. RP Sharma, P (reprint author), Nalanda Univ, Sch Ecol & Environm Studies, Nalanda 803116, Bihar, India.; Sharma, P (reprint author), Uppsala Univ, Dept Earth Sci, Uppsala, Sweden. EM psharma@nalandauniv.com FU Swedish Geological Survey (SGU) [1724] FX The authors cordially acknowledge the Swedish Geological Survey (SGU), Grant Number 1724, for providing financial support to the research reported in this paper. We are most grateful to the NEDRA and ICDP-OSG logging teams, especially Jochem Kueck, Christian Carnein, and Karl Bohn for collecting the logging data. We also acknowledge ICDP for supporting the post-drilling logs. NR 32 TC 0 Z9 0 U1 2 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1437-3254 EI 1437-3262 J9 INT J EARTH SCI JI Int. J. Earth Sci. PD JUL PY 2016 VL 105 IS 5 BP 1549 EP 1562 DI 10.1007/s00531-015-1268-x PG 14 WC Geosciences, Multidisciplinary SC Geology GA DQ2IL UT WOS:000379025900015 ER PT J AU Sabau, AS Greer, CM Chen, J Warren, CD Daniel, C AF Sabau, Adrian S. Greer, Clayton M. Chen, Jian Warren, Charles D. Daniel, Claus TI Surface Characterization of Carbon Fiber Polymer Composites and Aluminum Alloys After Laser Interference Structuring SO JOM LA English DT Article ID EXCIMER-LASER; CO2-LASER TREATMENT; METALLURGY; METALS; FILMS AB The increasing use of carbon fiber-reinforced polymer matrix composites (CFPC) and aluminum alloys as lightweight materials in the automotive and aerospace industries demands enhanced surface preparation and control of surface morphology prior to joining. In this study, surfaces of both composite and aluminum were prepared for joining using an Nd:YAG laser in a two-beam interference setup, enabling the (1) structuring of the AL 5182 surface, (2) removal of the resin layer on top of carbon fibers, and (3) structuring of the carbon fibers. CFPC specimens of T700S carbon fiber, Prepreg-T83 epoxy, 5 ply thick, 0A degrees/90A degrees plaques were used. The effects of laser fluence, scanning speed, and number of shots-per-spot were investigated on the removal rate of the resin without an excessive damage of the fibers. Optical micrographs, 3D imaging, and scanning electron microscope imaging were used to study the effect of the laser processing on the surface morphology. It was found that an effective resin ablation and a low density of broken fibers for CFPC specimens was attained using laser fluences of 1-2 J/cm(2) and number of 2-4 pulses per spot. A relatively large area of periodic line structures due to energy interference were formed on the aluminum surface at laser fluences of 12 J/cm(2) and number of 4-6 pulses per spot. C1 [Sabau, Adrian S.; Chen, Jian; Warren, Charles D.; Daniel, Claus] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Greer, Clayton M.] Univ Tennessee, Knoxville, TN 37996 USA. RP Sabau, AS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM sabaua@ornl.gov RI Chen, Jihua/F-1417-2011; Sabau, Adrian/B-9571-2008 OI Chen, Jihua/0000-0001-6879-5936; Sabau, Adrian/0000-0003-3088-6474 FU U.S. Department of Energy [DE-AC05-00OR22725]; Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office, Lightweight Materials Program FX This research was conducted at UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy for the project "Laser-Assisted Joining Process for Aluminum and Carbon Fiber Components" and has been funded by the Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office, Lightweight Materials Program. The authors would like to thank Timothy Skszek of Magna International, Troy, MI for providing the AL 5182 specimens. NR 26 TC 0 Z9 0 U1 16 U2 20 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1882 EP 1889 DI 10.1007/s11837-016-1936-8 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100016 ER PT J AU Das, S Martinez, NY Das, S Mishra, RS Grant, GJ Jana, S Polikarpov, E AF Das, Shamiparna Martinez, Nelson Y. Das, Santanu Mishra, Rajiv S. Grant, Glenn J. Jana, Saumyadeep Polikarpov, Evgueni TI Magnetic Properties of Friction Stir Processed Composite SO JOM LA English DT Article ID MECHANICAL-PROPERTIES; MATRIX COMPOSITES; IN-SITU; ALUMINUM; FABRICATION; ALLOYS AB Of the many existing inspection or monitoring systems, each has its own advantages and drawbacks. These systems are usually comprised of semi-remote sensors that frequently cause difficulty in reaching complex areas of a component. This study proposes to overcome that difficulty by developing embedded functional composites, so that embedding can be achieved in virtually any component part and periodically can be interrogated by a reading device. The "reinforcement rich" processed areas can then be used to record properties such as strain, temperature, and stress state, to name a few, depending on the reinforcement material. Friction stir processing was used to fabricate a magnetostrictive composite by embedding galfenol particles into a nonmagnetic aluminum matrix. The aim was to develop a composite that produces strain in response to a varying magnetic field. Reinforcements were distributed uniformly in the matrix. Magnetization curves were studied using a vibrating sample magnetometer. A simple and cost-effective setup was developed to measure the magnetostrictive strain of the composites. Important factors affecting the magnetic properties were identified and the processing route was modified to improve the magnetic response. C1 [Das, Shamiparna; Martinez, Nelson Y.; Das, Santanu; Mishra, Rajiv S.] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA. [Grant, Glenn J.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA. [Jana, Saumyadeep; Polikarpov, Evgueni] Pacific NW Natl Lab, Appl Mat & Performance, Richland, WA 99352 USA. RP Das, S (reprint author), Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA. EM shamiparnadas@my.unt.edu; nelsonmartinez@my.unt.edu; sd0211@hotmail.com; rajiv.mishra@unt.edu; glenn.grant@pnnl.gov; saumyadeep.jana@pnnl.gov; evgueni.Polikarpov@pnnl.gov RI Mishra, Rajiv/A-7985-2009 OI Mishra, Rajiv/0000-0002-1699-0614 FU Pacific Northwest National Laboratory (PNNL) FX The authors thank Pacific Northwest National Laboratory (PNNL) for the financial support for this work. NR 21 TC 0 Z9 0 U1 4 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1925 EP 1931 DI 10.1007/s11837-016-1881-6 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100021 ER PT J AU Rios, O McCall, SK AF Rios, Orlando McCall, Scott K. TI Applied Magnetism: A Supply-Driven Materials Challenge SO JOM LA English DT Article C1 [Rios, Orlando] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [McCall, Scott K.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Rios, O (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM rioso@ornl.gov; mccall10@llnl.gov RI McCall, Scott/G-1733-2014; Rios, Orlando/E-6856-2017 OI McCall, Scott/0000-0002-7979-4944; Rios, Orlando/0000-0002-1814-7815 FU Critical Materials Institute, an Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; LLNL [DE-AC52-07NA27344]; ORNL [DE-AC05-00OR22725] FX This work was supported by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. Work prepared by LLNL under Contract DE-AC52-07NA27344 and by ORNL under contract DE-AC05-00OR22725. NR 0 TC 0 Z9 0 U1 1 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1938 EP 1939 DI 10.1007/s11837-016-1962-6 PG 2 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100023 ER PT J AU Sims, ZC Weiss, D McCall, SK McGuire, MA Ott, RT Geer, T Rios, O Turchi, PAE AF Sims, Zachary C. Weiss, D. McCall, S. K. McGuire, M. A. Ott, R. T. Geer, Tom Rios, Orlando Turchi, P. A. E. TI Cerium-Based, Intermetallic-Strengthened Aluminum Casting Alloy: High-Volume Co-product Development SO JOM LA English DT Article ID SI ALLOYS; PRECIPITATION; PHASE; SC AB Several rare earth elements are considered by-products to rare earth mining efforts. By using one of these by-product elements in a high-volume application such as aluminum casting alloys, the supply of more valuable rare earths can be globally stabilized. Stabilizing the global rare earth market will decrease the long-term criticality of other rare earth elements. The low demand for Ce, the most abundant rare earth, contributes to the instability of rare earth extraction. In this article, we discuss a series of intermetallic-strengthened Al alloys that exhibit the potential for new high-volume use of Ce. The castability, structure, and mechanical properties of binary, ternary, and quaternary Al-Ce based alloys are discussed. We have determined Al-Ce based alloys to be highly castable across a broad range of compositions. Nanoscale intermetallics dominate the microstructure and are the theorized source of the high ductility. In addition, room-temperature physical properties appear to be competitive with existing aluminum alloys with extended high-temperature stability of the nanostructured intermetallic. C1 [Sims, Zachary C.; McGuire, M. A.; Geer, Tom; Rios, Orlando] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Weiss, D.] Eck Ind, Manitowoc, WI USA. [McCall, S. K.; Turchi, P. A. E.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Ott, R. T.] Ames Natl Lab, Ames, IA USA. RP Rios, O (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. EM orios@ornl.gov RI McGuire, Michael/B-5453-2009; McCall, Scott/G-1733-2014; Rios, Orlando/E-6856-2017 OI McGuire, Michael/0000-0003-1762-9406; McCall, Scott/0000-0002-7979-4944; Rios, Orlando/0000-0002-1814-7815 FU Critical Materials Institute, an Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; U.S. Department of Energy; Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Oak Ridge National Laboratory under U.S. Department of Energy [DE-AC05-00OR22725]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; Oak Ridge National Laboratory Directed Research and Development funds FX This research was sponsored by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. This work was performed under the auspices of the U.S. Department of Energy with Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 and with Oak Ridge National Laboratory under U.S. Department of Energy contract DE-AC05-00OR22725. Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. 3D printed molds and engine testing was funded by Oak Ridge National Laboratory Directed Research and Development funds. We acknowledge the support of Scott Curran and Claus Daniel with engine assembly and testing. NR 19 TC 0 Z9 0 U1 8 U2 17 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1940 EP 1947 DI 10.1007/s11837-016-1943-9 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100024 ER PT J AU Nguyen, RT Imholte, DD AF Nguyen, Ruby Thuy Imholte, D. Devin TI China's Rare Earth Supply Chain: Illegal Production, and Response to new Cerium Demand SO JOM LA English DT Article AB As the demand for personal electronic devices, wind turbines, and electric vehicles increases, the world becomes more dependent on rare earth elements. Given the volatile, Chinese-concentrated supply chain, global attempts have been made to diversify supply of these materials. However, the overall effect of supply diversification on the entire supply chain, including increasing low-value rare earth demand, is not fully understood. This paper is the first attempt to shed some light on China's supply chain from both demand and supply perspectives, taking into account different Chinese policies such as mining quotas, separation quotas, export quotas, and resource taxes. We constructed a simulation model using Powersim Studio that analyzes production (both legal and illegal), production costs, Chinese and rest-of-world demand, and market dynamics. We also simulated new demand of an automotive aluminum-cerium alloy in the US market starting from 2018. Results showed that market share of the illegal sector has grown since 2007-2015, ranging between 22% and 25% of China's rare earth supply, translating into 59-65% illegal heavy rare earths and 14-16% illegal light rare earths. There will be a shortage in certain light and heavy rare earths given three production quota scenarios and constant demand growth rate from 2015 to 2030. The new simulated Ce demand would require supply beyond that produced in China. Finally, we illustrate revenue streams for different ore compositions in China in 2015. C1 [Nguyen, Ruby Thuy; Imholte, D. Devin] Idaho Natl Lab, Idaho Falls, ID USA. RP Imholte, DD (reprint author), Idaho Natl Lab, Idaho Falls, ID USA. EM devin.imholte@inl.gov RI Nguyen, Ruby/B-9058-2017; OI Nguyen, Ruby/0000-0002-5791-5004; Imholte, Daniel/0000-0001-8415-0409 FU Critical Materials Institute, an Energy Innovation Hub - US Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; US Department of Energy [DE-AC07-05ID14517] FX This work is supported by the Critical Materials Institute, an Energy Innovation Hub funded by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. We thank professor Rod Eggert and his students, Maxwell Brown and Braeton Smith, at the Colorado School of Mines in supporting us with data collection. We thank Bobby Jeffers and Calvin Shaneyfelt of Sandia National Laboratories for assisting with modeling techniques and economic mechanisms. (C) This manuscript has been authored by Battelle Energy Alliance, LLC under Contract No. DE-AC07-05ID14517 with the US Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 39 TC 0 Z9 0 U1 10 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1948 EP 1956 DI 10.1007/s11837-016-1894-1 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100025 ER PT J AU Geng, J Nlebedim, IC Besser, MF Simsek, E Ott, RT AF Geng, J. Nlebedim, I. C. Besser, M. F. Simsek, E. Ott, R. T. TI Bulk Combinatorial Synthesis and High Throughput Characterization for Rapid Assessment of Magnetic Materials: Application of Laser Engineered Net Shaping (LENS (TM)) SO JOM LA English DT Article ID FE-CO ALLOYS AB A bulk combinatorial approach for synthesizing alloy libraries using laser engineered net shaping (LENS (TM); i.e., 3D printing) was utilized to rapidly assess material systems for magnetic applications. The LENS (TM) system feeds powders in different ratios into a melt pool created by a laser to synthesize samples with bulk (millimeters) dimensions. By analyzing these libraries with autosampler differential scanning calorimeter/thermal gravimetric analysis and vibrating sample magnetometry, we are able to rapidly characterize the thermodynamic and magnetic properties of the libraries. The Fe-Co binary alloy was used as a model system and the results were compared with data in the literature. C1 [Geng, J.; Nlebedim, I. C.; Besser, M. F.; Simsek, E.; Ott, R. T.] US DOE, Crit Mat Inst, Ames Lab, Ames, IA 50010 USA. [Geng, J.; Besser, M. F.; Simsek, E.; Ott, R. T.] US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50010 USA. RP Geng, J (reprint author), US DOE, Crit Mat Inst, Ames Lab, Ames, IA 50010 USA.; Geng, J (reprint author), US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50010 USA. EM geng@ameslab.gov RI Geng, Jie/B-8899-2009 OI Geng, Jie/0000-0003-0422-0230 FU Critical Materials Institute, an Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; Iowa State University [DE-AC02-07CH11358] FX This work is supported by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. The Ames Laboratory is operated by Iowa State University under Contract No. DE-AC02-07CH11358. NR 25 TC 1 Z9 1 U1 16 U2 26 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1972 EP 1977 DI 10.1007/s11837-016-1918-x PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100028 ER PT J AU Paranthaman, MP Shafer, CS Elliott, AM Siddel, DH McGuire, MA Springfield, RM Martin, J Fredette, R Ormerod, J AF Paranthaman, M. Parans Shafer, Christopher S. Elliott, Amy M. Siddel, Derek H. McGuire, Michael A. Springfield, Robert M. Martin, Josh Fredette, Robert Ormerod, John TI Binder Jetting: A Novel NdFeB Bonded Magnet Fabrication Process SO JOM LA English DT Article ID PERMANENT-MAGNETS AB The goal of this research is to fabricate near-net-shape isotropic (Nd)(2)Fe14B-based (NdFeB) bonded magnets using a three dimensional printing process to compete with conventional injection molding techniques used for bonded magnets. Additive manufacturing minimizes the waste of critical materials and allows for the creation of complex shapes and sizes. The binder jetting process works similarly to an inkjet printer. A print-head passes over a bed of NdFeB powder and deposits a polymer binding agent to bind the layer of particles together. The bound powder is then coated with another layer of powder, building the desired shape in successive layers of bonded powder. Upon completion, the green part and surrounding powders are placed in an oven at temperatures between 100A degrees C and 150A degrees C for 4-6 h to cure the binder. After curing, the excess powder can be brushed away to reveal the completed "green" part. Green magnet parts were then infiltrated with a clear urethane resin to achieve the measured density of the magnet of 3.47 g/cm(3) close to 46% relative to the NdFeB single crystal density of 7.6 g/cm(3). Magnetic measurements indicate that there is no degradation in the magnetic properties. This study provides a new pathway for preparing near-net-shape bonded magnets for various magnetic applications. C1 [Paranthaman, M. Parans; Shafer, Christopher S.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Shafer, Christopher S.; Siddel, Derek H.] Univ Tennessee, Knoxville, TN 37996 USA. [Elliott, Amy M.; Siddel, Derek H.] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA. [McGuire, Michael A.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Springfield, Robert M.; Martin, Josh] Tru Design LLC, Knoxville, TN 37938 USA. [Fredette, Robert; Ormerod, John] Magnet Applicat Inc, Duboise, PA 15801 USA. RP Paranthaman, MP (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM paranthamanm@ornl.gov RI McGuire, Michael/B-5453-2009; OI McGuire, Michael/0000-0003-1762-9406; Paranthaman, Mariappan/0000-0003-3009-8531 FU Critical Material Institute, an Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internship program FX This work was supported in part by the Critical Material Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. The research on the printing was supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internship program. Access to the MDF facilities and use of additive instrument time and labor are supported by the MDF Tech Collaborations between ORNL and Magnet Applications Inc. and Tru-Design LLC. NR 18 TC 1 Z9 1 U1 13 U2 23 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 EI 1543-1851 J9 JOM-US JI JOM PD JUL PY 2016 VL 68 IS 7 BP 1978 EP 1982 DI 10.1007/s11837-016-1883-4 PG 5 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA DQ2IX UT WOS:000379027100029 ER PT J AU Craig, N Knapen, S Longhi, P Strassler, M AF Craig, Nathaniel Knapen, Simon Longhi, Pietro Strassler, Matthew TI The vector-like twin Higgs SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Beyond Standard Model; Discrete Symmetries; Global Symmetries ID SUPERSYMMETRY BREAKING; MODEL AB We present a version of the twin Higgs mechanism with vector-like top partners. In this setup all gauge anomalies automatically cancel, even without twin leptons. The matter content of the most minimal twin sector is therefore just two twin tops and one twin bottom. The LHC phenomenology, illustrated with two example models, is dominated by twin glueball decays, possibly in association with Higgs bosons. We further construct an explicit four-dimensional UV completion and discuss a variety of UV completions relevant for both vector-like and fraternal twin Higgs models. C1 [Craig, Nathaniel] Univ Calif Santa Barbara, Dept Phys, Broida Hall, Santa Barbara, CA 93106 USA. [Knapen, Simon] Univ Calif Berkeley, Dept Phys, Ctr Theoret Phys, 366 Le Conte Hall, Berkeley, CA 94720 USA. [Knapen, Simon] Lawrence Berkeley Natl Lab, Theoret Phys Grp, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Longhi, Pietro] Uppsala Univ, Dept Phys, Regementsvagen 1, SE-75237 Uppsala, Sweden. [Strassler, Matthew] Harvard Univ, Dept Phys, 17 Oxford St, Cambridge, MA 02138 USA. RP Craig, N (reprint author), Univ Calif Santa Barbara, Dept Phys, Broida Hall, Santa Barbara, CA 93106 USA. EM ncraig@physics.ucsb.edu; smknapen@lbl.gov; pietro.longhi@physics.uu.se; strassler@physics.harvard.edu FU Department of Energy [DE-SC0014129]; LDRD Program of LBNL under U.S. Department of Energy [DE-AC02-05CH11231]; Carl Tryggers Stiftelsen FX We thank Hsin-Chia Cheng, Tim Cohen, Csaba Csaki, Michael Geller, Adam Falkowski, Roni Harnik, Yonit Hochberg, Eric Kuflik, Tim Lou, John March-Russell, Michele Papucci, Dean Robinson and Yuhsin Tsai for useful conversations. NC is supported by the Department of Energy under the grant DE-SC0014129. The work of SK was supported by the LDRD Program of LBNL under U.S. Department of Energy Contract No. DE-AC02-05CH11231. The work of PL is supported by the Carl Tryggers Stiftelsen. SK and MJS thank the Gallileo Galilei Institute for Theoretical Physics where part of this work was completed. NR 42 TC 2 Z9 2 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD JUL 1 PY 2016 IS 7 AR 002 DI 10.1007/JHEP07(2016)002 PG 32 WC Physics, Particles & Fields SC Physics GA DQ4MN UT WOS:000379178100002 ER PT J AU Cecil, T Gades, L Madden, T Yan, D Miceli, A AF Cecil, T. Gades, L. Madden, T. Yan, D. Miceli, A. TI Tuning the Transition Temperature of WSi Alloys for Use in Cryogenic Microcalorimeters SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE Low temperature detector; kinetic inductance detector; Materials; Tungsten silicide AB Microwave kinetic inductance detectors (MKID) provide a pathway to highly multiplexed, high-resolution, detectors. Over the past several years we have introduced the concept of the thermal kinetic inductance detector (TKID), which operates as a microcalorimeter. As with other microcalorimeters, the thermal noise of a TKID is reduced when the operating temperature is decreased. However, because the sensitivity of a TKID decreases as the operating temperature drops below 20 % of , the of the resonator material must be tuned to match the desired operating temperature. We have investigated the WSi alloy system as a material for these detectors. By co-sputtering from a Si and WSi target, we have deposited WSi films with a tunable that ranges from 5 K down to 500 mK. These films provide a large kinetic inductance fraction and relatively low noise levels. We provide results of these studies showing the , resistivity, quality factors, and noise as a function of deposition conditions. These results show that WSi is a good candidate for TKIDs. C1 [Cecil, T.; Gades, L.; Madden, T.; Miceli, A.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Yan, D.] Northwestern Univ, Dept Appl Phys, Evanston, IL 60208 USA. RP Cecil, T (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM cecil@aps.anl.gov NR 8 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 17 EP 22 DI 10.1007/s10909-016-1588-7 PG 6 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800004 ER PT J AU Tartari, A Belier, B Bleurvacq, N Calvo, M Cammilleri, D Decourcelle, T Monfardini, A Moric, I Piat, M Prele, D Smoot, GF AF Tartari, A. Belier, B. Bleurvacq, N. Calvo, M. Cammilleri, D. Decourcelle, T. Monfardini, A. Moric, I. Piat, M. Prele, D. Smoot, G. F. TI LEKIDs as mm-Wave Polarisation Analysers: Fabrication, Test Bench and Early Results SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE LEKIDs; Polarimetry; Cosmic microwave background ID 30 M TELESCOPE; PERFORMANCE; CAMERA AB We have demonstrated in an earlier paper that LEKIDs can be used in a polarisation selective way in a filled array configuration. A polarised response can be achieved by means of thick Nb polarising grids lithographed on the rear side of a 300 microns silicon wafer, on which Al resonators have been previously patterned. In the most interesting scheme that we have investigated, a unit cell formed by 4 pixels (2 by 2) responds simultaneously to two orthogonal (cartesian) polarisation states. To assess the effectiveness of this detection scheme, we have fabricated a first generation of devices (9 small arrays, 20-25 pixels each, on a 4 Silicon wafer) by using a double-sided mask aligner suitable for a precise positioning of the individual grids in correspondence of each resonator's meander, for the different LEKID geometries. We describe here the realisation of these first devices. The construction of a dedicated polarimetric test bench is also described in this contribution, together with the first characterisation results. We consider this activity as a first and necessary step to evaluate the polarisation purity attainable with polarisation-sensitive pixels whose size is comparable to the wavelength. This is a fundamental information to drive further studies. C1 [Tartari, A.; Bleurvacq, N.; Decourcelle, T.; Moric, I.; Piat, M.; Prele, D.; Smoot, G. F.] Univ Paris Diderot, CNRS, Lab APC, F-75205 Paris, France. [Belier, B.] Univ Paris 11, CNRS, IEF, Orsay, France. [Calvo, M.; Monfardini, A.] CNRS, Inst Neel, Grenoble, France. [Cammilleri, D.] Univ Paris 11, CNRS, LPGP, Orsay, France. [Smoot, G. F.] LBNL, Berkeley, CA 94720 USA. RP Tartari, A (reprint author), Univ Paris Diderot, CNRS, Lab APC, F-75205 Paris, France. EM tartari@apc.univ-paris7.fr NR 10 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 167 EP 172 DI 10.1007/s10909-015-1421-8 PG 6 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800027 ER PT J AU Bates, C Pies, C Kempf, S Hengstler, D Fleischmann, A Gastaldo, L Enss, C Friedrich, S AF Bates, C. Pies, C. Kempf, S. Hengstler, D. Fleischmann, A. Gastaldo, L. Enss, C. Friedrich, S. TI Direct Detection of Pu-242 with a Metallic Magnetic Calorimeter Gamma-Ray Detector SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE Metallic magnetic calorimeters; Nuclear safeguards; Gamma spectroscopy; Non-destructive assay; Plutonium isotopics; Pu-242 AB Cryogenic high-resolution -ray detectors can improve the accuracy of non-destructive assay (NDA) of nuclear materials in cases where conventional high-purity germanium detectors are limited by line overlap or by the Compton background. We have improved the performance of gamma detectors based on metallic magnetic calorimeters (MMCs) by separating the 0.5 2 0.25 mm Au absorber from the Au:Er sensor with sixteen 30-m-diameter Au posts. This ensures that the entire -ray energy thermalizes in the absorber before heating the Au:Er sensor, and improves the energy resolution at 35 mK to as low as 90 eV FWHM at 60 keV. This energy resolution enables the direct detection of -rays from Pu-242, an isotope that cannot be measured by traditional NDA and whose concentration is therefore inferred through correlations with other Pu isotopes. The Pu-242 concentration of 11.11 0.42 % measured by NDA with MMCs agrees with mass spectrometry results and exceeds the accuracy of correlation measurements. C1 [Bates, C.; Friedrich, S.] Lawrence Livermore Natl Lab, 7000 East Ave L-188, Livermore, CA 94550 USA. [Pies, C.; Kempf, S.; Hengstler, D.; Fleischmann, A.; Gastaldo, L.; Enss, C.] Heidelberg Univ, Kirchhoff Inst Phys, INF 227, D-69120 Heidelberg, Germany. [Bates, C.] Los Alamos Natl Lab, POB 1663 F663, Los Alamos, NM 87545 USA. RP Friedrich, S (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave L-188, Livermore, CA 94550 USA. EM friedrich1@llnl.gov RI Kempf, Sebastian/P-7612-2016 OI Kempf, Sebastian/0000-0002-3303-128X NR 11 TC 1 Z9 1 U1 1 U2 1 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 351 EP 355 DI 10.1007/s10909-015-1348-0 PG 5 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800054 ER PT J AU Yan, D Cecil, T Gades, L Jacobsen, C Madden, T Miceli, A AF Yan, D. Cecil, T. Gades, L. Jacobsen, C. Madden, T. Miceli, A. TI Processing of X-ray Microcalorimeter Data with Pulse Shape Variation using Principal Component Analysis SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE Principal component analysis (PCA); Pulse processing; Shape variance; Microcalorimeter ID KINETIC INDUCTANCE DETECTORS AB We present a method using principal component analysis (PCA) to process x-ray pulses with severe shape variation where traditional optimal filter methods fail. We demonstrate that PCA is able to noise-filter and extract energy information from x-ray pulses despite their different shapes. We apply this method to a dataset from an x-ray thermal kinetic inductance detector which has severe pulse shape variation arising from position-dependent absorption. C1 [Yan, D.; Jacobsen, C.] Northwestern Univ, Evanston, IL 60208 USA. [Yan, D.; Cecil, T.; Gades, L.; Jacobsen, C.; Madden, T.; Miceli, A.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Miceli, A (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM amiceli@anl.gov RI Jacobsen, Chris/E-2827-2015 OI Jacobsen, Chris/0000-0001-8562-0353 NR 7 TC 1 Z9 1 U1 1 U2 6 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 397 EP 404 DI 10.1007/s10909-016-1480-5 PG 8 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800062 ER PT J AU Rotermund, K Barch, B Chapman, S Hattori, K Lee, A Palaio, N Shirley, I Suzuki, A Tran, C AF Rotermund, K. Barch, B. Chapman, S. Hattori, K. Lee, A. Palaio, N. Shirley, I. Suzuki, A. Tran, C. TI Planar Lithographed Superconducting LC Resonators for Frequency-Domain Multiplexed Readout Systems SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE Cosmic microwave background; Multiplexing; Fabrication technique; Lithography; Superconducting resonators AB Cosmic microwave background (CMB) polarization experiments are increasing the number of transition edge sensor (TES) bolometers to increase sensitivity. In order to maintain low thermal loading of the sub-Kelvin stage, the frequency-domain multiplexing (FDM) factor has to increase accordingly. FDM is achieved by placing TES bolometers in series with inductor-capacitor (LC) resonators, which select the readout frequency. The multiplexing factor can be raised with a large total readout bandwidth and small frequency spacing between channels. The inductance is kept constant to maintain a uniform readout bandwidth across detectors, while the maximum acceptable value is determined by bolometer stability. Current technology relies on commercially available ceramic chip capacitors. These have high scatter in their capacitance thereby requiring large frequency spacing. Furthermore, they have high equivalent series resistance (ESR) at higher frequencies and are time consuming and tedious to hand assemble via soldering. A solution lies in lithographed, planar spiral inductors (currently in use by some experiments) combined with interdigitated capacitors on a silicon (Si) substrate. To maintain reasonable device dimensions, we have reduced trace and gap widths of the LCs to 4 m. We increased the inductance from 16 to 60 H to achieve a higher packing density, a requirement for FDM systems with large multiplexing factors. Additionally, the Si substrate yields low ESR values across the entire frequency range and lithography makes mass production of LC pairs possible. We reduced mutual inductance between inductors by placing them in a checkerboard pattern with the capacitors, thereby increasing physical distances between adjacent inductors. We also reduce magnetic coupling of inductors with external sources by evaporating a superconducting ground plane onto the backside of the substrate. We report on the development of lithographed LCs in the 1-5 MHz range for use with FDM systems. These resonators will be used by CMB polarization experiments such as Polarbear-2, Simons Array, and SPT-3G. Existing FDM systems have multiplexing factors up to 16. We report the extension to 40, i.e., Polarbear-2, and 68, i.e., SPT-3G. We present the design criteria of Polarbear-2's LC circuits, the fabrication techniques, and the testing. Concerns such as yield, accuracy in frequency, loss, and mutual inductance between spatially neighboring channels will be discussed. C1 [Rotermund, K.; Chapman, S.] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada. [Barch, B.; Lee, A.; Shirley, I.; Suzuki, A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Palaio, N.; Tran, C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Phys, Berkeley, CA 94720 USA. [Hattori, K.] Univ Tokyo, Kavli Inst Phys & Math Universe, Kashiwa, Chiba 2778583, Japan. RP Rotermund, K (reprint author), Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada. EM kaja@dal.ca NR 8 TC 1 Z9 1 U1 6 U2 6 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 486 EP 491 DI 10.1007/s10909-016-1554-4 PG 6 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800076 ER PT J AU Hattori, K Akiba, Y Arnold, K Barron, D Bender, AN Cukierman, A de Haan, T Dobbs, M Elleflot, T Hasegawa, M Hazumi, M Holzapfel, W Hori, Y Keating, B Kusaka, A Lee, A Montgomery, J Rotermund, K Shirley, I Suzuki, A Whitehorn, N AF Hattori, K. Akiba, Y. Arnold, K. Barron, D. Bender, A. N. Cukierman, A. de Haan, T. Dobbs, M. Elleflot, T. Hasegawa, M. Hazumi, M. Holzapfel, W. Hori, Y. Keating, B. Kusaka, A. Lee, A. Montgomery, J. Rotermund, K. Shirley, I. Suzuki, A. Whitehorn, N. TI Development of Readout Electronics for POLARBEAR-2 Cosmic Microwave Background Experiment SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 16th International Workshop on Low Temperature Particle Detection (LTD) CY JUL 20-24, 2015 CL Grenoble, FRANCE SP Air Liquide, Cryoconcept, CRYOGEN Ltd, Entropy, XIA DE TES bolometer; Frequency-domain multiplexing; Cosmic microwave background; POLARBEAR-2; Digital feedback AB The readout of transition-edge sensor (TES) bolometers with a large multiplexing factor is key for the next generation cosmic microwave background (CMB) experiment, Polarbear-2 (Suzuki in J Low Temp Phys 176:719, 2014), having 7588 TES bolometers. To enable the large arrays, we have been developing a readout system with a multiplexing factor of 40 in the frequency domain. Extending that architecture to 40 bolometers requires an increase in the bandwidth of the SQUID electronics, above 4 MHz. This paper focuses on cryogenic readout and shows how it affects cross talk and the responsivity of the TES bolometers. A series resistance, such as equivalent series resistance of capacitors for LC filters, leads to non-linear response of the bolometers. A wiring inductance modulates a voltage across the bolometers and causes cross talk. They should be controlled well to reduce systematic errors in CMB observations. We have been developing a cryogenic readout with a low series impedance and have tuned bolometers in the middle of their transition at a high frequency (>3 MHz). C1 [Hattori, K.] Univ Tokyo, Kavli IPMU WPI, UTIAS, Kashiwa, Chiba 2778583, Japan. [Akiba, Y.; Hasegawa, M.; Hazumi, M.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Arnold, K.] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. [Barron, D.; Cukierman, A.; de Haan, T.; Holzapfel, W.; Hori, Y.; Lee, A.; Shirley, I.; Suzuki, A.; Whitehorn, N.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Bender, A. N.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Dobbs, M.; Montgomery, J.] McGill Univ, Dept Phys, Montreal, PQ H3A 0G4, Canada. [Elleflot, T.; Keating, B.] Univ Calif San Diego, Dept Phys, San Diego, CA 92093 USA. [Kusaka, A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA. [Rotermund, K.] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada. RP Hattori, K (reprint author), Univ Tokyo, Kavli IPMU WPI, UTIAS, Kashiwa, Chiba 2778583, Japan. EM khattori@berkeley.edu NR 10 TC 4 Z9 4 U1 4 U2 4 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 EI 1573-7357 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD JUL PY 2016 VL 184 IS 1-2 BP 512 EP 518 DI 10.1007/s10909-015-1448-x PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DP7OX UT WOS:000378689800080 ER PT J AU Lupini, AR Chi, M Jesse, S AF Lupini, A. R. Chi, M. Jesse, S. TI Rapid aberration measurement with pixelated detectors SO JOURNAL OF MICROSCOPY LA English DT Article DE STEM; aberration; ptychography ID ELECTRON-MICROSCOPY; ATOMIC-RESOLUTION; STEM INSTRUMENT; PTYCHOGRAPHY; RECONSTRUCTION; IMPLEMENTATION; RONCHIGRAM AB Aberration-corrected microscopy in a scanning transmission electron microscope requires the fast and accurate measurement of lens aberrations to align or tune' the corrector. Here, we demonstrate a method to measure aberrations based on acquiring a 4D data set on a pixelated detector. Our method is compared to existing procedures and the choice of experimental parameters is examined. The accuracy is similar to existing methods, but in principle this procedure can be performed in a few seconds and extended to arbitrary order. This method allows rapid measurement of aberrations and represents a step towards more automated electron microscopy. Lay description Imperfections of the electron-optical lenses provide the main resolution limit in modern high-performance transmission electron microscopy. Correction of these aberrations' in a scanning transmission electron microscope requires the fast and accurate measurement of lens aberrations to align or tune' the corrector. Here, we demonstrate a method to measure aberrations based on acquiring the scattering distribution at every probe position. This procedure results in 4D data set, which can be transformed to give an array of real-space images. Cross-correlating these images gives the gradient of the aberration function, from which the aberrations can be determined by a least-squares fit. The method is compared to existing procedures to measure aberrations and how various experimental parameters affect the accuracy is examined. The accuracy is found to be similar to the best existing methods, but in principle this procedure can be performed in a few seconds and extended to arbitrary order measurement. This method allows rapid measurement of aberrations and represents a step towards more automated electron microscopy. C1 [Lupini, A. R.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA. [Chi, M.; Jesse, S.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. [Lupini, A. R.; Jesse, S.] Oak Ridge Natl Lab, Inst Funct Imaging Mat, Oak Ridge, TN USA. RP Lupini, AR (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM arl1000@ornl.gov RI Chi, Miaofang/Q-2489-2015 OI Chi, Miaofang/0000-0003-0764-1567 FU Materials Sciences and Engineering Division, Basic Energy Sciences, Office of Science, U.S. Department of Energy; Oak Ridge National Laboratory's Center for Nanophase Materials Sciences - 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 FX Research supported by the Materials Sciences and Engineering Division, Basic Energy Sciences, Office of Science, U.S. Department of Energy (A.R.L.) and by Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, which is sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy (M.C.). Research supported by the Laboratory-Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy (S.J.). We also acknowledge J.C. Idrobo, S.V. Kalinin, A.Y. Borisevich and M.F. Chisholm for critical reading of this manuscript. NR 28 TC 0 Z9 0 U1 6 U2 11 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0022-2720 EI 1365-2818 J9 J MICROSC-OXFORD JI J. Microsc.. PD JUL PY 2016 VL 263 IS 1 BP 43 EP 50 DI 10.1111/jmi.12372 PG 8 WC Microscopy SC Microscopy GA DQ4II UT WOS:000379167100005 PM 26832842 ER PT J AU Morales, AG Stempinski, ES Xiao, X Patel, A Panna, A Olivier, KN Mcshane, PJ Robinson, C George, AJ Donahue, DR Chen, P Wen, H AF Morales, A. G. Stempinski, E. S. Xiao, X. Patel, A. Panna, A. Olivier, K. N. Mcshane, P. J. Robinson, C. George, A. J. Donahue, D. R. Chen, P. Wen, H. TI Micro-CT scouting for transmission electron microscopy of human tissue specimens SO JOURNAL OF MICROSCOPY LA English DT Article DE bench-top micro-CT scanner; micro-CT scouting; three-dimensional visualization; transmission electron microscopy ID COMPUTED-TOMOGRAPHY; LIGHT AB Transmission electron microscopy (TEM) provides sub-nanometre-scale details in volumetric samples. Samples such as pathology tissue specimens are often stained with a metal element to enhance contrast, which makes them opaque to optical microscopes. As a result, it can be a lengthy procedure to find the region of interest inside a sample through sectioning. We describe micro-CT scouting for TEM that allows noninvasive identification of regions of interest within a block sample to guide the sectioning step. In a tissue pathology study, a bench-top micro-CT scanner with 10 m resolution was used to determine the location of patches of the mucous membrane in osmium-stained human nasal scraping samples. Once the regions of interest were located, the sample block was sectioned to expose that location, followed by ultra-thin sectioning and TEM to inspect the internal structure of the cilia of the membrane epithelial cells with nanometre resolution. This method substantially reduced the time and labour of the search process from typically 20 sections for light microscopy to three sections with no added sample preparation. Lay description Electron microscopy provides very high levels of detail in a small area, and thus the question of where to look in an opaque sample, such as a stained tissue specimen, needs to be answered by sectioning the sample in small steps and examining the sections under a light microscope, until the region of interest is found. The search process can be lengthy and labor intensive, especially for a study involving a large number of samples. Small areas of interest can be missed in the process if not enough regions are examined. We describe a method to directly locate the region of interest within a whole sample using micro-CT imaging, bypassing the need of blindly sectioning. Micro-CT enables locating the region within 3D space; this information provides a guide for sectioning the sample to expose that precise location for high resolution electron microscopy imaging. In a human tissue specimen study, this method considerably reduced the time and labor of the search process. C1 [Morales, A. G.; Stempinski, E. S.; Patel, A.; Panna, A.; Olivier, K. N.; Mcshane, P. J.; Robinson, C.; George, A. J.; Chen, P.; Wen, H.] NHLBI, NIH, Bldg 10, Bethesda, MD 20892 USA. [Xiao, X.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Donahue, D. R.] NINDS, NIH, Bldg 36,Rm 4D04, Bethesda, MD 20892 USA. RP Wen, H (reprint author), NHLBI, NIH, Bldg 10, Bethesda, MD 20892 USA. EM wenh@nhlbi.nih.gov RI Wen, Han/G-3081-2010 OI Wen, Han/0000-0001-6844-2997 FU DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357] FX The authors thank Patricia Connelly of the NHLBIEM Core for her assistance with electron microscopy. The authors thank Douglas Morris of the NIH Mouse Imaging Facility for his assistance with micro-CT. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. NR 11 TC 0 Z9 0 U1 2 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0022-2720 EI 1365-2818 J9 J MICROSC-OXFORD JI J. Microsc.. PD JUL PY 2016 VL 263 IS 1 BP 113 EP 117 DI 10.1111/jmi.12385 PG 5 WC Microscopy SC Microscopy GA DQ4II UT WOS:000379167100012 PM 26854176 ER PT J AU Ansari, F Gludovatz, B Kozak, A Ritchie, RO Pruitt, LA AF Ansari, Farzana Gludovatz, Bernd Kozak, Adam Ritchie, Robert O. Pruitt, Lisa A. TI Notch fatigue of ultrahigh molecular weight polyethylene (UHMWPE) used, in total joint replacements SO JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS LA English DT Article DE UHMWPE; Notch fatigue; Fatigue crack propagation; Cross-linking; Vitamin E ID CROSS-LINKED UHMWPE; CRACK-PROPAGATION; VITAMIN-E; MECHANICAL-PROPERTIES; STRESS-CONCENTRATIONS; ACETABULAR LINERS; EARLY FAILURE; TIBIAL POST; RESISTANCE; BEHAVIOR AB Ultrahigh molecular weight polyethylene (UHMWPE) has remained the primary polymer used in hip, knee and shoulder replacements for over 50 years. Recent case studies have demonstrated that catastrophic fatigue fracture of the polymer can severely limit device lifetime and are often associated with stress concentration (notches) integrated into the design. This study evaluates the influence of notch geometry on the fatigue of three formulations of UHMWPE that are in use today. A linear-elastic fracture mechanics approach is adopted to evaluate crack propagation as a function of notch root radius, heat treatment and Vitamin E additions. Specifically, a modified stress-intensity factor that accounts for notch geometry was utilized to model the crack driving force. The degree of notch plasticity for each material/notch combination was further evaluated using finite element methods. Experimental evaluation of crack speed as a function of stress intensity was conducted under cyclic tensile loading, taking crack length and notch plasticity into consideration. Results demonstrated that crack propagation in UHMWPE emanating from a notch was primarily affected by microstructural influences (cross-linking) rather than differences in notch geometry. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Ansari, Farzana; Ritchie, Robert O.; Pruitt, Lisa A.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Gludovatz, Bernd; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Kozak, Adam] Cambridge Polymer Grp, Boston, MA USA. [Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Ansari, F (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. EM ansari.farzana@gmail.com RI Ritchie, Robert/A-8066-2008; OI Ritchie, Robert/0000-0002-0501-6998; Gludovatz, Bernd/0000-0002-2420-3879 FU Mechanical Behavior of Materials Program at the Lawrence Berkeley National Laboratory by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [KC 13] FX We would like to acknowledge the assistance of Gio Gajudo, Connor Purivance, and Noah Bonnheim in the completion of computational and experimental portions of this study. The involvement of BG and ROR was supported through the Mechanical Behavior of Materials Program (KC 13) at the Lawrence Berkeley National Laboratory by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. NR 60 TC 0 Z9 0 U1 4 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1751-6161 EI 1878-0180 J9 J MECH BEHAV BIOMED JI J. Mech. Behav. Biomed. Mater. PD JUL PY 2016 VL 60 BP 267 EP 279 DI 10.1016/j.jmbbm.2016.02.014 PG 13 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA DQ1OA UT WOS:000378969100025 PM 26919563 ER PT J AU Bhandari, YR Jiang, W Stahlberg, EA Stagno, JR Wang, YX AF Bhandari, Yuba R. Jiang, Wei Stahlberg, Eric A. Stagno, Jason R. Wang, Yun-Xing TI Modeling RNA topological structures using small angle X-ray scattering SO METHODS LA English DT Article DE SAXS; RNA; Conformation; Motif; Moves; Topological ID REV RESPONSE ELEMENT; STRUCTURE PREDICTION; SECONDARY STRUCTURE; FLEXIBLE PROTEINS; RESOLUTION; CONSTRAINTS; MECHANISMS; PATHWAYS; RIBOZYME; IFOLDRNA AB Detailed understanding of the structure and function relationship of RNA requires knowledge about RNA three-dimensional (3D) topological folding. However, there are very few unique RNA entries in structure databases. This is due to challenges in determining 3D structures of RNA using conventional methods, such as X-ray crystallography and NMR spectroscopy, despite significant advances in both of these technologies. Computational methods have come a long way in accurately predicting the 3D structures of small (<50 nt) RNAs to within a few angstroms compared to their native folds. However, lack of an apparent correlation between an RNA primary sequence and its 3D fold ultimately limits the success of purely computational approaches. In this context, small angle X-ray scattering (SAXS) serves as a valuable tool by providing global shape information of RNA. In this article, we review the progress in determining RNA 3D topological structures, including a new method that combines secondary structural information and SAXS data to sample conformations generated through hierarchical moves of commonly observed RNA motifs. (C) 2016 Published by Elsevier Inc. C1 [Bhandari, Yuba R.; Stagno, Jason R.; Wang, Yun-Xing] NCI, Prot Nucle Acid Interact Sect, Struct Biophys Lab, Ctr Canc Res,NIH, Frederick, MD 21702 USA. [Jiang, Wei] Argonne Natl Lab, Lemont, IL USA. [Stahlberg, Eric A.] Frederick Natl Lab Canc Res, Data Sci & Informat Technol Program, Frederick, MD 21702 USA. RP Bhandari, YR (reprint author), NCI, Prot Nucle Acid Interact Sect, Struct Biophys Lab, Ctr Canc Res,NIH, Frederick, MD 21702 USA. EM bhandariyr@mail.nih.gov FU Intramural Research Programs of the National Cancer Institute; DOE Office of Science User Facility [DE-AC02-06CH11357] FX This work was supported by the Intramural Research Programs of the National Cancer Institute. The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the US government. This research utilized the computational resources of the NIH HPC Biowulf cluster (http://hpc.nih.gov) and resources of the Argonne Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC02-06CH11357. NR 47 TC 2 Z9 2 U1 7 U2 12 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1046-2023 EI 1095-9130 J9 METHODS JI Methods PD JUL 1 PY 2016 VL 103 BP 18 EP 24 DI 10.1016/j.ymeth.2016.04.015 PG 7 WC Biochemical Research Methods; Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA DQ1ST UT WOS:000378981400004 PM 27090001 ER PT J AU Hulscher, RM Bohon, J Rappe, MC Gupta, S D'Mello, R Sullivan, M Ralston, CY Chance, MR Woodson, SA AF Hulscher, Ryan M. Bohon, Jen Rappe, Mollie C. Gupta, Sayan D'Mello, Rhijuta Sullivan, Michael Ralston, Cone Y. Chance, Mark R. Woodson, Sarah A. TI Probing the structure of ribosome assembly intermediates in vivo using DMS and hydroxyl radical footprinting SO METHODS LA English DT Article DE RNA structure; Ribosome assembly; Hydroxyl radical footprinting; Dimethylsulfate; 4-Thiouridine; Synchrotron X-ray beamline ID QUANTITATIVE MASS-SPECTROMETRY; ESCHERICHIA-COLI RIBOSOMES; RNA STRUCTURE; LIVING CELLS; 30 S; PROTEIN; SUBUNITS; DYNAMICS; ASSOCIATION; BIOGENESIS AB The assembly of the Escherichia coli ribosome has been widely studied and characterized in vitro. Despite this, ribosome biogenesis in living cells is only partly understood because assembly is coupled with transcription, modification and processing of the pre-ribosomal RNA. We present a method for footprinting and isolating pre-rRNA as it is synthesized in E. coli cells. Pre-rRNA synthesis is synchronized by starvation, followed by nutrient upshift. RNA synthesized during outgrowth is metabolically labeled to facilitate isolation of recent transcripts. Combining this technique with two in vivo RNA probing methods, hydroxyl radical and DMS footprinting, allows the structure of nascent RNA to be probed over time. Together, these can be used to determine changes in the structures of ribosome assembly intermediates as they fold in vivo. (C) 2016 Elsevier Inc. All rights reserved. C1 [Hulscher, Ryan M.; Rappe, Mollie C.; Woodson, Sarah A.] Johns Hopkins Univ, TC Jenkins Dept Biophys, 3400 N Charles St, Baltimore, MD 21218 USA. [Bohon, Jen; D'Mello, Rhijuta; Sullivan, Michael; Chance, Mark R.] Case Western Reserve Univ, Ctr Prote & Bioinformat, 10900 Euclid Ave, Cleveland, OH 44106 USA. [Bohon, Jen; D'Mello, Rhijuta; Sullivan, Michael; Chance, Mark R.] Case Western Reserve Univ, Ctr Synchrotron Biosci, 10900 Euclid Ave, Cleveland, OH 44106 USA. [Gupta, Sayan; Ralston, Cone Y.] Lawrence Berkeley Natl Lab, Mol Biophys & Integrated Bioimaging, Berkeley, CA 94720 USA. RP Woodson, SA (reprint author), Johns Hopkins Univ, TC Jenkins Dept Biophys, 3400 N Charles St, Baltimore, MD 21218 USA. EM swoodson@jhu.edu OI Woodson, Sarah/0000-0003-0170-1987 FU National Institutes of Health [R01 GM60819]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]; NIBIB [P30-EB0966]; National Science Foundation [DBI-1228549] FX The authors thank Donald Abel, Rich Celestre, and John Toomey for technical assistance. This work was supported by a grant from the National Institutes of Health (R01 GM60819 to S.A.W.). 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. 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. The Center for Synchrotron Biosciences at the National Synchrotron Light Sources is supported by NIBIB under P30-EB0966, with research instrumentation development supported by the National Science Foundation under DBI-1228549. NR 54 TC 3 Z9 3 U1 4 U2 6 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1046-2023 EI 1095-9130 J9 METHODS JI Methods PD JUL 1 PY 2016 VL 103 BP 49 EP 56 DI 10.1016/j.ymeth.2016.03.012 PG 8 WC Biochemical Research Methods; Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA DQ1ST UT WOS:000378981400007 PM 27016143 ER PT J AU Ye, Y Xiao, J Wang, HL Ye, ZL Zhu, HY Zhao, M Wang, Y Zhao, JH Yin, XB Zhang, X AF Ye, Yu Xiao, Jun Wang, Hailong Ye, Ziliang Zhu, Hanyu Zhao, Mervin Wang, Yuan Zhao, Jianhua Yin, Xiaobo Zhang, Xiang TI Electrical generation and control of the valley carriers in a monolayer transition metal dichalcogenide SO NATURE NANOTECHNOLOGY LA English DT Article ID EXCITON BINDING-ENERGY; P-N DIODES; MOLYBDENUM-DISULFIDE; WS2; POLARIZATION; MOS2; SPIN; SEMICONDUCTOR; HELICITY AB Electrically controlling the flow of charge carriers is the foundation of modern electronics. By accessing the extra spin degree of freedom (DOF) in electronics, spintronics allows for information processes such as magnetoresistive random-access memory(1). Recently, atomic membranes of transitionmetal dichalcogenides (TMDCs) were found to support unequal and distinguishable carrier distribution in different crystal momentum valleys. This valley polarization of carriers enables a new DOF for information processing(2-4). A variety of valleytronic devices such as valley filters and valves have been proposed(5), and optical valley excitation has been observed(2-4). However, to realize its potential in electronics it is necessary to electrically control the valley DOF, which has so far remained a significant challenge. Here, we experimentally demonstrate the electrical generation and control of valley polarization. This is achieved through spin injection via a diluted ferromagnetic semiconductor and measured through the helicity of the electroluminescence due to the spin-valley locking in TMDC monolayers(6). We also report a new scheme of electronic devices that combine both the spin and valley DOFs. Such direct electrical generation and control of valley carriers opens up new dimensions in utilizing both the spin and valley DOFs for next-generation electronics and computing. C1 [Ye, Yu; Xiao, Jun; Ye, Ziliang; Zhu, Hanyu; Zhao, Mervin; Wang, Yuan; Zhang, Xiang] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, 3112 Etcheverry Hall, Berkeley, CA 94720 USA. [Wang, Hailong; Zhao, Jianhua] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 10083, Peoples R China. [Yin, Xiaobo] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA. [Yin, Xiaobo] Univ Colorado, Mat Sci & Engn Program, Boulder, CO 80309 USA. [Zhang, Xiang] Lawrence Berkeley Natl Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Zhang, Xiang] King Abdulaziz Univ, Dept Phys, Jeddah 21589, Saudi Arabia. RP Zhang, X (reprint author), Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, 3112 Etcheverry Hall, Berkeley, CA 94720 USA.; Zhang, X (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.; Zhang, X (reprint author), King Abdulaziz Univ, Dept Phys, Jeddah 21589, Saudi Arabia. EM xiang@berkeley.edu RI Wang, Yuan/F-7211-2011; Wang, Hailong/C-7859-2013 FU Office of Naval Research Multidisciplinary University Research Initiative program [N00014-13-1-0649]; National Science Foundation [EFMA-1542741]; MOST of China [2015CB921503]; NSFC [61334006] FX The authors acknowledge financial support from Office of Naval Research Multidisciplinary University Research Initiative program under grant no. N00014-13-1-0649, and National Science Foundation (EFMA-1542741). J.Z. and H.W. acknowledge support from MOST of China (grant no. 2015CB921503) and NSFC (grant no. 61334006). Y.Y. thanks T. Cao of the University of California, Berkeley for helpful discussions. NR 32 TC 7 Z9 7 U1 41 U2 91 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1748-3387 EI 1748-3395 J9 NAT NANOTECHNOL JI Nat. Nanotechnol. PD JUL PY 2016 VL 11 IS 7 BP 597 EP + DI 10.1038/NNANO.2016.49 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ9BY UT WOS:000379506600009 PM 27043196 ER PT J AU Su, YD Liu, C Brittman, S Tang, JY Fu, A Kornienko, N Kong, Q Yang, PD AF Su, Yude Liu, Chong Brittman, Sarah Tang, Jinyao Fu, Anthony Kornienko, Nikolay Kong, Qiao Yang, Peidong TI Single-nanowire photoelectrochemistry SO NATURE NANOTECHNOLOGY LA English DT Article ID SILICON NANOWIRES; CO2; REDUCTION; ARRAYS; CELLS; EVOLUTION AB Photoelectrochemistry(1-3) is one of several promising approaches(4,5) for the realization of efficient solar-to-fuel conversion. Recent work has shown that photoelectrodes made of semiconductor nano-/microwire arrays can have better photoelectrochemical performance(6-8) than their planar counterparts because of their unique properties, such as high surface area(9-11). Although considerable research effort has focused on studying wire arrays, the inhomogeneity in the geometry, doping, defects and catalyst loading present in such arrays can obscure the link between these properties and the photoelectrochemical performance of the wires, and correlating performance with the specific properties of individual wires is difficult because of ensemble averaging. Here, we show that a single-nanowire-based photoelectrode platform can be used to reliably probe the current-voltage (I-V) characteristics of individual nanowires. We find that the photovoltage output of ensemble array samples can be limited by poorly performing individual wires, which highlights the importance of improving nanowire homogeneity within an array. Furthermore, the platform allows the flux of photogenerated electrons to be quantified as a function of the lengths and diameters of individual nanowires, and we find that the flux over the entire nanowire surface (7-30 electrons nm(-2) s(-1)) is significantly reduced as compared with that of a planar analogue (similar to 1,200 electrons nm(-2) s(-1)). Such characterization of the photogenerated carrier flux at the semiconductor/electrolyte interface is essential for designing nanowire photoelectrodes that match the activity of their loaded electrocatalysts. C1 [Su, Yude; Liu, Chong; Brittman, Sarah; Tang, Jinyao; Fu, Anthony; Kornienko, Nikolay; Kong, Qiao; Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Liu, Chong; Brittman, Sarah; Tang, Jinyao; Fu, Anthony; Kornienko, Nikolay; Yang, Peidong] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Yang, Peidong] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Yang, Peidong] Kavli Energy Nanosci Inst, Berkeley, CA 94720 USA. RP Yang, PD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.; Yang, PD (reprint author), Kavli Energy Nanosci Inst, Berkeley, CA 94720 USA. EM p_yang@berkeley.edu OI Liu, Chong/0000-0001-5546-3852 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy [DE-AC02-05CH11231]; USTC-Suzhou Industrial Park FX This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy (contract no. DE-AC02-05CH11231, Pchem). Y.S. is supported by graduate fellowship support from USTC-Suzhou Industrial Park. High-resolution transmission electron microscopy was performed at the National Center of Electron Microscopy (NCEM) in the Molecular Foundry at Lawrence Berkeley National Laboratory. The authors thank K. Sakimoto, J. Resasco, A. Wong, S. Eaton and J. Lim for discussions. The authors acknowledge the Marvell Nanofabrication Laboratory for use of their facilities. NR 30 TC 7 Z9 7 U1 64 U2 129 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1748-3387 EI 1748-3395 J9 NAT NANOTECHNOL JI Nat. Nanotechnol. PD JUL PY 2016 VL 11 IS 7 BP 609 EP + DI 10.1038/NNANO.2016.30 PG 5 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ9BY UT WOS:000379506600011 PM 27018660 ER PT J AU He, XW Gao, WL Xie, LJ Li, B Zhang, Q Lei, SD Robinson, JM Haroz, EH Doorn, SK Wang, WP Vajtai, R Ajayan, PM Adams, WW Hauge, RH Kono, J AF He, Xiaowei Gao, Weilu Xie, Lijuan Li, Bo Zhang, Qi Lei, Sidong Robinson, John M. Haroz, Erik H. Doorn, Stephen K. Wang, Weipeng Vajtai, Robert Ajayan, Pulickel M. Adams, W. Wade Hauge, Robert H. Kono, Junichiro TI Wafer-scale monodomain films of spontaneously aligned single-walled carbon nanotubes SO NATURE NANOTECHNOLOGY LA English DT Article ID ELECTRONIC-PROPERTIES; LIQUID-CRYSTALS; THIN-FILMS; BROAD-BAND; TRANSPARENT; ALIGNMENT; PHOTOLUMINESCENCE; PHOTODETECTOR; CONDUCTIVITY; PERFORMANCE AB The one-dimensional character of electrons, phonons and excitons in individual single-walled carbon nanotubes leads to extremely anisotropic electronic, thermal and optical properties. However, despite significant efforts to develop ways to produce large-scale architectures of aligned nanotubes, macroscopic manifestations of such properties remain limited. Here, we show that large (>cm(2)) monodomain films of aligned single-walled carbon nanotubes can be prepared using slow vacuum filtration. The produced films are globally aligned within +/- 1.5 degrees (a nematic order parameter of similar to 1) and are highly packed, containing 1 x 10(6) nanotubes in a cross-sectional area of 1 mu m(2). The method works for nanotubes synthesized by various methods, and film thickness is controllable from a few nanometres to similar to 100 nm. We use the approach to create ideal polarizers in the terahertz frequency range and, by combining the method with recently developed sorting techniques, highly aligned and chirality-enriched nanotube thin-film devices. Semiconductor-enriched devices exhibit polarized light emission and polarization-dependent photocurrent, as well as anisotropic conductivities and transistor action with high on/off ratios. C1 [He, Xiaowei; Gao, Weilu; Zhang, Qi; Robinson, John M.; Kono, Junichiro] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA. [Xie, Lijuan] Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China. [Li, Bo; Lei, Sidong; Wang, Weipeng; Vajtai, Robert; Ajayan, Pulickel M.; Adams, W. Wade; Hauge, Robert H.; Kono, Junichiro] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA. [Haroz, Erik H.; Doorn, Stephen K.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Hauge, Robert H.] Rice Univ, Dept Chem, Houston, TX 77005 USA. [Kono, Junichiro] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. [Robinson, John M.] Univ Colorado, Dept Phys, Boulder, CO 80302 USA. RP Kono, J (reprint author), Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA.; Kono, J (reprint author), Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA.; Kono, J (reprint author), Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. EM kono@rice.edu RI Gao, Weilu/O-7521-2016; Lei, Sidong/A-8600-2016; Li, Bo/A-2634-2014 OI Lei, Sidong/0000-0001-9129-2202; Li, Bo/0000-0001-9766-7925 FU Basic Energy Sciences (BES) programme of the US Department of Energy [DE-FG02-06ER46308]; Robert A. Welch Foundation [C-1509]; LANL LDRD programme FX This work was supported by the Basic Energy Sciences (BES) programme of the US Department of Energy through grant no. DE-FG02-06ER46308 (for the preparation and characterization of aligned carbon nanotube films) and the Robert A. Welch Foundation through grant no. C-1509 (for terahertz and infrared characterization). S.K.D. and E.H.H. acknowledge support from the LANL LDRD programme. Portions of this work were performed at the Center for Integrated Nanotechnologies, a US Department of Energy, Office of Science user facility. The authors thank H. Kasai, A. Zubair, C. Sewell, S. Peters and T. Higashira for their assistance with terahertz characterization measurements and I. Kurganskaya, A. Luttge, R. Headrick and M. Pasquali for discussions. NR 38 TC 14 Z9 14 U1 25 U2 57 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1748-3387 EI 1748-3395 J9 NAT NANOTECHNOL JI Nat. Nanotechnol. PD JUL PY 2016 VL 11 IS 7 BP 633 EP + DI 10.1038/NNANO.2016.44 PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ9BY UT WOS:000379506600015 PM 27043199 ER PT J AU Tunuguntla, RH Allen, FI Kim, K Belliveau, A Noy, A AF Tunuguntla, Ramya H. Allen, Frances I. Kim, Kyunghoon Belliveau, Allison Noy, Aleksandr TI Ultrafast proton transport in sub-1-nm diameter carbon nanotube porins SO NATURE NANOTECHNOLOGY LA English DT Article ID ION-CHANNEL; MEMBRANES; WATER; PERMEABILITY; CONDUCTANCE; ENERGIES; VESICLES; BILAYERS; FORCE; MODEL AB Proton transport plays an important role in many biological processes due to the ability of protons to rapidly translocate along chains of hydrogen-bonded water molecules. Molecular dynamics simulations have predicted that confinement in hydrophobic nanochannels should enhance the rate of proton transport. Here, we show that 0.8-nm-diameter carbon nanotube porins, which promote the formation of one-dimensional water wires, can support proton transport rates exceeding those of bulk water by an order of magnitude. The transport rates in these narrow nanotube pores also exceed those of biological channels and Nafion. With larger 1.5-nm-diameter nanotube porins, proton transport rates comparable to bulk water are observed. We also show that the proton conductance of these channels can be modulated by the presence of Ca2+ ions. Our results illustrate the potential of small-diameter carbon nanotube porins as a proton conductor material and suggest that strong spatial confinement is a key factor in enabling efficient proton transport. C1 [Tunuguntla, Ramya H.; Kim, Kyunghoon; Belliveau, Allison; Noy, Aleksandr] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, 7000 East Ave, Livermore, CA 94550 USA. [Allen, Frances I.] Univ Calif Berkeley, Dept Mat Sci & Engn, 210 Hearst Ave, Berkeley, CA 94720 USA. [Allen, Frances I.] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Noy, Aleksandr] Univ Calif Merced, Sch Nat Sci, 5200 N Lake Rd, Merced, CA 94343 USA. [Kim, Kyunghoon] Sungkyunkwan Univ, Sch Mech Engn, 2066 Seobu Ro, Suwon 16419, South Korea. RP Noy, A (reprint author), Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, 7000 East Ave, Livermore, CA 94550 USA.; Noy, A (reprint author), Univ Calif Merced, Sch Nat Sci, 5200 N Lake Rd, Merced, CA 94343 USA. EM noy1@llnl.gov FU US Department of Energy [DE-AC52-07NA27344]; US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [SCW0972]; Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231] FX We thank A.T. Pham for the images used in Fig. 1b,c, and Y. Yu for assistance with cryo-EM imaging. A.B. acknowledges SULI summer internship programme funding from the US Department of Energy. This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award SCW0972. Work at the Lawrence Livermore National Laboratory was performed under the auspices of the US Department of Energy under Contract DE-AC52-07NA27344. 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-AC02-05CH11231. NR 38 TC 7 Z9 7 U1 18 U2 31 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1748-3387 EI 1748-3395 J9 NAT NANOTECHNOL JI Nat. Nanotechnol. PD JUL PY 2016 VL 11 IS 7 BP 639 EP + DI 10.1038/NNANO.2016.43 PG 8 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ9BY UT WOS:000379506600016 PM 27043198 ER PT J AU Wu, Y Wang, LL Mun, E Johnson, DD Mou, DX Huang, LN Lee, Y Bud'ko, SL Canfield, PC Kaminski, A AF Wu, Yun Wang, Lin-Lin Mun, Eundeok Johnson, D. D. Mou, Daixiang Huang, Lunan Lee, Yongbin Bud'ko, S. L. Canfield, P. C. Kaminski, Adam TI Dirac node arcs in PtSn4 SO NATURE PHYSICS LA English DT Article ID WEYL FERMION SEMIMETAL; ULTRAHIGH MOBILITY; MAGNETORESISTANCE; DISCOVERY; CD3AS2; SURFACE AB In topological quantum materials(1-3) the conduction and valence bands are connected at points or along lines in the momentum space. A number of studies have demonstrated that several materials are indeed Dirac/Weyl semimetals(4-8). However, there is still no experimental confirmation of materials with line nodes, in which the Dirac nodes form closed loops in the momentum space(2,3). Here we report the discovery of a novel topological structure-Dirac node arcs-in the ultrahigh magnetoresistive material PtSn4 using laser-based angle-resolved photoemission spectroscopy data and density functional theory calculations. Unlike the closed loops of line nodes, the Dirac node arc structure arises owing to the surface states and resembles the Dirac dispersion in graphene that is extended along a short line in the momentum space. We propose that this reported Dirac node arc structure is a novel topological state that provides an exciting platform for studying the exotic properties of Dirac fermions. C1 [Wu, Yun; Wang, Lin-Lin; Mun, Eundeok; Johnson, D. D.; Mou, Daixiang; Huang, Lunan; Lee, Yongbin; Bud'ko, S. L.; Canfield, P. C.; Kaminski, Adam] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA. [Wu, Yun; Mun, Eundeok; Johnson, D. D.; Mou, Daixiang; Huang, Lunan; Bud'ko, S. L.; Canfield, P. C.; Kaminski, Adam] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Johnson, D. D.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Mun, Eundeok] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada. RP Canfield, PC; Kaminski, A (reprint author), Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA.; Canfield, PC; Kaminski, A (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. EM canfield@ameslab.gov; kaminski@ameslab.gov RI Mou, Daixiang/D-1752-2014; OI Mun, Eundeok/0000-0001-5120-1492; Mou, Daixiang/0000-0002-1316-4384; Johnson, Duane/0000-0003-0794-7283 FU US Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division; US Department of Energy by Iowa State University [DE-AC02-07CH11358] FX This work was supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division. Ames Laboratory is operated for the US Department of Energy by Iowa State University under contract No. DE-AC02-07CH11358. NR 32 TC 16 Z9 16 U1 29 U2 51 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD JUL PY 2016 VL 12 IS 7 BP 667 EP + DI 10.1038/NPHYS3712 PG 6 WC Physics, Multidisciplinary SC Physics GA DQ5UG UT WOS:000379269900023 ER PT J AU Schmid, EM Bakalar, MH Choudhuri, K Weichsel, J Ann, HS Geissler, PL Dustin, ML Fletcher, DA AF Schmid, Eva M. Bakalar, Matthew H. Choudhuri, Kaushik Weichsel, Julian Ann, Hyoung Sook Geissler, Phillip L. Dustin, Michael L. Fletcher, Daniel A. TI Size-dependent protein segregation at membrane interfaces SO NATURE PHYSICS LA English DT Article ID T-CELL-RECEPTOR; GREEN FLUORESCENT PROTEIN; IMMUNOGLOBULIN SUPERFAMILY; CAENORHABDITIS-ELEGANS; IMMUNOLOGICAL SYNAPSE; ACTIVATION; ADHESION; MECHANISMS; FUSION; ORGANIZATION AB Membrane interfaces formed at cell-cell junctions are associated with characteristic patterns of membrane proteins whose organization is critical for intracellular signalling. To isolate the role of membrane protein size in pattern formation, we reconstituted model membrane interfaces in vitro using giant unilamellar vesicles decorated with synthetic binding and non-binding proteins. We show that size differences between membrane proteins can drastically alter their organization at membrane interfaces, with as little as a similar to 5 nm increase in non-binding protein size driving its exclusion from the interface. Combining in vitro measurements with Monte Carlo simulations, we find that non-binding protein exclusion is also influenced by lateral crowding, binding protein affinity, and thermally driven membrane height fluctuations that transiently limit access to the interface. This sensitive and highly effective means of physically segregating proteins has implications for cell-cell contacts such as T-cell immunological synapses (for example, CD45 exclusion) and epithelial cell junctions (for example, E-cadherin enrichment), as well as for protein sorting at intracellular contact points between membrane-bound organelles. C1 [Schmid, Eva M.; Bakalar, Matthew H.; Ann, Hyoung Sook; Fletcher, Daniel A.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. [Schmid, Eva M.; Bakalar, Matthew H.; Ann, Hyoung Sook; Fletcher, Daniel A.] Univ Calif Berkeley, Biophys Program, Berkeley, CA 94720 USA. [Bakalar, Matthew H.; Fletcher, Daniel A.] Univ Calif Berkeley, UC San Francisco Grad Grp Bioengn, Berkeley, CA 94720 USA. [Choudhuri, Kaushik; Dustin, Michael L.] NYU, Sch Med, Skirball Inst, New York, NY 10016 USA. [Weichsel, Julian; Geissler, Phillip L.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Geissler, Phillip L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Dustin, Michael L.] Univ Oxford, NDORMS, Kennedy Inst, Oxford OX3 7DL, England. [Fletcher, Daniel A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Choudhuri, Kaushik] Univ Michigan, Sch Med, Dept Microbiol & Immunol, Ann Arbor, MI 48109 USA. [Ann, Hyoung Sook] Univ Illinois, Inst Genom Biol, Champaign, IL 61820 USA. RP Fletcher, DA (reprint author), Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.; Fletcher, DA (reprint author), Univ Calif Berkeley, Biophys Program, Berkeley, CA 94720 USA.; Fletcher, DA (reprint author), Univ Calif Berkeley, UC San Francisco Grad Grp Bioengn, Berkeley, CA 94720 USA.; Fletcher, DA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM fletch@berkeley.edu OI Dustin, Michael/0000-0003-4983-6389 FU National Science Foundation (NSF); Cancer Research Institute Post Doctoral Fellowship; National Institute of Health (NIH) [K99AI093884, R00AI093884]; Forschungsstipendium of the Deutsche Forschungsgemeinschaft (DFG) [We 5004/2]; NIH [R37AI043542, GM114344]; NIGMS Nanomedicine Development Center grant [PN2EY016586]; Wellcome Trust; NIH Nanomedicine Development Center [PN2EY016546]; Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy, FWP [SISGRKN] FX We acknowledge R. Vale and C. Peel for helpfu discussions. This work was supported by a Graduate Fellows Research Program grant from the National Science Foundation (NSF) for M.H.B.; a Cancer Research Institute Post Doctoral Fellowship and a K99 grant from the National Institute of Health (NIH, K99AI093884 and R00AI093884) for K.C.; Forschungsstipendium of the Deutsche Forschungsgemeinschaft (DFG grant no. We 5004/2) for J.W.; a NIH grant (R37AI043542), a NIGMS Nanomedicine Development Center grant (PN2EY016586) and a Wellcome Trust Principal Research Fellowship to M.L.D.; and a NIH Nanomedicine Development Center grant (PN2EY016546) and an NIH R01 grant (GM114344) to D.A.F. This research was also supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy, FWP number SISGRKN. NR 48 TC 4 Z9 4 U1 13 U2 24 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD JUL PY 2016 VL 12 IS 7 BP 704 EP + DI 10.1038/NPHYS3678 PG 10 WC Physics, Multidisciplinary SC Physics GA DQ5UG UT WOS:000379269900030 PM 27980602 ER PT J AU Kostka, JE Weston, DJ Glass, JB Lilleskov, EA Shaw, AJ Turetsky, MR AF Kostka, Joel E. Weston, David J. Glass, Jennifer B. Lilleskov, Erik A. Shaw, A. Jonathan Turetsky, Merritt R. TI The Sphagnum microbiome: new insights from an ancient plant lineage SO NEW PHYTOLOGIST LA English DT Review DE bacteria; fungi; methanotroph; microbiome; nitrogen fixation; peatland; plant growth promotion; Sphagnum ID RHIZOSPHERE MICROBIOME; BACTERIAL COMMUNITIES; METHANE PRODUCTION; GLOBAL CHANGE; RAISED BOGS; NITROGEN; MOSSES; CARBON; PEATLANDS; METHANOTROPHS AB Peat mosses of the genus Sphagnum play a major role in global carbon storage and dominate many northern peatland ecosystems, which are currently being subjected to some of the most rapid climate changes on Earth. A rapidly expanding database indicates that a diverse community of microorganisms is intimately associated with Sphagnum, inhabiting the tissues and surface of the plant. Here we summarize the current state of knowledge regarding the Sphagnum microbiome and provide a perspective for future research directions. Although the majority of the microbiome remains uncultivated and its metabolic capabilities uncharacterized, prokaryotes and fungi have the potential to act as mutualists, symbionts, or antagonists of Sphagnum. For example, methanotrophic and nitrogen-fixing bacteria may benefit the plant host by providing up to 20-30% of Sphagnum carbon and nitrogen, respectively. Next-generation sequencing approaches have enabled the detailed characterization of microbiome community composition in peat mosses. However, as with other ecologically or economically important plants, our knowledge of Sphagnum-microbiome associations is in its infancy. In order to attain a predictive understanding of the role of the microbiome in Sphagnum productivity and ecosystem function, the mechanisms of plant-microbiome interactions and the metabolic potential of constituent microbial populations must be revealed. C1 [Kostka, Joel E.; Glass, Jennifer B.] Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA. [Kostka, Joel E.; Glass, Jennifer B.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA. [Weston, David J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Lilleskov, Erik A.] US Forest Serv, No Res Stn, USDA, Houghton, MI 49931 USA. [Shaw, A. Jonathan] Duke Univ, Dept Biol, Durham, NC 27708 USA. [Turetsky, Merritt R.] Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada. RP Kostka, JE (reprint author), Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA.; Kostka, JE (reprint author), Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA. EM joel.kostka@biology.gatech.edu FU US Department of Energy, Office of Science, Office of Biological and Environmental Research; Terrestrial Ecosystem Science (TES) Program under US Department of Energy [DE-SC0012088]; US Department of Energy [DE-AC05-00OR22725] FX This review was supported in part by the US Department of Energy, Office of Science, Office of Biological and Environmental Research. J.E.K. was supported by the Terrestrial Ecosystem Science (TES) Program, under US Department of Energy contract # DE-SC0012088. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the US Department of Energy under contract DE-AC05-00OR22725. NR 61 TC 2 Z9 3 U1 21 U2 42 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 2016 VL 211 IS 1 BP 57 EP 64 DI 10.1111/nph.13993 PG 8 WC Plant Sciences SC Plant Sciences GA DQ4ZE UT WOS:000379212800007 PM 27173909 ER PT J AU Yang, JD Worley, E Ma, Q Li, J Torres-Jerez, I Li, GY Zhao, PX Xu, Y Tang, YH Udvardi, M AF Yang, Jiading Worley, Eric Ma, Qin Li, Jun Torres-Jerez, Ivone Li, Gaoyang Zhao, Patrick X. Xu, Ying Tang, Yuhong Udvardi, Michael TI Nitrogen remobilization and conservation, and underlying senescence-associated gene expression in the perennial switchgrass Panicum virgatum SO NEW PHYTOLOGIST LA English DT Article DE gene expression; nitrogen remobilization; senescence; switchgrass (Panicum virgatum); transcription factors ID ARABIDOPSIS LEAF SENESCENCE; TRANSCRIPTION FACTOR FAMILY; MISCANTHUS X GIGANTEUS; BELOW-GROUND BIOMASS; SEASONAL DYNAMICS; PLANT SENESCENCE; STRESS RESPONSES; NUTRIENT REMOVAL; L.; TOLERANCE AB Improving nitrogen (N) remobilization from aboveground to underground organs during yearly shoot senescence is an important goal for sustainable production of switchgrass (Panicum virgatum) as a biofuel crop. Little is known about the genetic control of senescence and N use efficiency in perennial grasses such as switchgrass, which limits our ability to improve the process. Switchgrass aboveground organs (leaves, stems and inflorescences) and underground organs (crowns and roots) were harvested every month over a 3-yr period. Transcriptome analysis was performed to identify genes differentially expressed in various organs during development. Total N content in aboveground organs increased from spring until the end of summer, then decreased concomitant with senescence, while N content in underground organs exhibited an increase roughly matching the decrease in shoot N during fall. Hundreds of senescence-associated genes were identified in leaves and stems. Functional grouping indicated that regulation of transcription and protein degradation play important roles in shoot senescence. Coexpression networks predict important roles for five switchgrass NAC (NAM, ATAF1,2, CUC2) transcription factors (TFs) and other TF family members in orchestrating metabolism of carbohydrates, N and lipids, protein modification/degradation, and transport processes during senescence. This study establishes a molecular basis for understanding and enhancing N remobilization and conservation in switchgrass. C1 [Yang, Jiading; Worley, Eric; Li, Jun; Torres-Jerez, Ivone; Zhao, Patrick X.; Tang, Yuhong; Udvardi, Michael] Samuel Roberts Noble Fdn Inc, Div Plant Biol, Ardmore, OK 73401 USA. [Yang, Jiading; Worley, Eric; Xu, Ying; Tang, Yuhong; Udvardi, Michael] Oak Ridge Natl Lab, BioEnergy Sci Ctr BESC, Oak Ridge, TN 37831 USA. [Ma, Qin] S Dakota State Univ, Dept Plant Sci, Brookings, SD 57007 USA. [Li, Gaoyang; Xu, Ying] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA. RP Udvardi, M (reprint author), Samuel Roberts Noble Fdn Inc, Div Plant Biol, Ardmore, OK 73401 USA.; Udvardi, M (reprint author), Oak Ridge Natl Lab, BioEnergy Sci Ctr BESC, Oak Ridge, TN 37831 USA. EM mudvardi@noble.org OI Ma, Qin/0000-0002-3264-8392 FU BioEnergy Science Center (BESC) [DE-PS02-06ER64304]; Office of Biological and Environmental Research in the DOE Office of Science FX This work was carried out under the auspices of the BioEnergy Science Center (BESC) (grant number DE-PS02-06ER64304), which is a US Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science. NR 85 TC 2 Z9 2 U1 21 U2 39 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 2016 VL 211 IS 1 BP 75 EP 89 DI 10.1111/nph.13898 PG 15 WC Plant Sciences SC Plant Sciences GA DQ4ZE UT WOS:000379212800009 PM 26935010 ER PT J AU Bozhenkov, SA Lazerson, S Otte, M Gates, DA Pedersen, TS Wolf, RC AF Bozhenkov, S. A. Lazerson, S. Otte, M. Gates, D. A. Pedersen, T. Sunn Wolf, R. C. TI Methods for measuring 1/1 error field in Wendelstein 7-X stellarator SO NUCLEAR FUSION LA English DT Article DE error fields; flux surface mapping; island divertor; W7-X ID OPERATION; W7-X AB Wendelstein 7-X is an optimized helical axis stellarator that came into operation at the end of 2015. A m/n = 5/5 island chain is used in most of its configurations to form a divertor. This island chain at (sic) = 1 is sensitive to symmetry-breaking error fields, with the resonant 1/1 field being of particular concern because of its influence on the divertor heat flux distribution. Measurement and compensation of the 1/1 mode is therefore necessary. Experimentally, vacuum error fields in W7-X will be studied with a flux surface mapping diagnostic. In this paper numerical simulations for planning and analysing such measurements are presented. Two methods for determining the 1/1 mode are considered: measurement of the island width and measurement of a helical shift of the magnetic axis. Measurement of the resonant island width is a sensitive technique, but the island structure is also affected by other co-resonant components. A complementary method is to measure a helical shift of the magnetic axis in a configuration close to the resonance. This method has a simple interpretation and isolates the 1/1 error field from higher order resonant modes. C1 [Bozhenkov, S. A.; Otte, M.; Pedersen, T. Sunn; Wolf, R. C.] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany. [Lazerson, S.; Gates, D. A.] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RP Bozhenkov, SA (reprint author), Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany. EM sergey.bozhenkov@ipp.mpg.de RI Lazerson, Samuel/E-4816-2014 OI Lazerson, Samuel/0000-0001-8002-0121 FU Euratom research and training programme [633053]; EUROFUSION [633053] FX This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. This work was supported by EUROFUSION 633053. NR 25 TC 1 Z9 1 U1 3 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0029-5515 EI 1741-4326 J9 NUCL FUSION JI Nucl. Fusion PD JUL PY 2016 VL 56 IS 7 AR 076002 DI 10.1088/0029-5515/56/7/076002 PG 10 WC Physics, Fluids & Plasmas SC Physics GA DQ0YV UT WOS:000378928600004 ER PT J AU Chen, X Burrell, KH Ferraro, NM Osborne, TH Austin, ME Garofalo, AM Groebner, RJ Kramer, GJ Luhmann, NC McKee, GR Muscatello, CM Nazikian, R Ren, X Snyder, PB Solomon, WM Tobias, BJ Yan, Z AF Chen, Xi Burrell, K. H. Ferraro, N. M. Osborne, T. H. Austin, M. E. Garofalo, A. M. Groebner, R. J. Kramer, G. J. Luhmann, N. C., Jr. McKee, G. R. Muscatello, C. M. Nazikian, R. Ren, X. Snyder, P. B. Solomon, W. M. Tobias, B. J. Yan, Z. TI Rotational shear effects on edge harmonic oscillations in DIII-D quiescent H-mode discharges SO NUCLEAR FUSION LA English DT Article DE QH-mode; DIII-D; EHO; M3D-C1; rotational shear; ELM control; E x B shear ID D TOKAMAK; COLLISIONALITY REGIME; ASDEX UPGRADE; SPECTROSCOPY; STABILITY; PEDESTAL; PLASMAS; PHYSICS; JT-60U AB In the quiescent H-mode (QH-mode) regime, edge harmonic oscillations (EHOs) play an important role in avoiding transient edge localized mode (ELM) power fluxes by providing benign and continuous edge particle transport. A detailed theoretical, experimental and modeling comparison has been made of low-n (n <= 5) EHO in DIII-D QH-mode plasmas. The calculated linear eigenmode structure from the extended magentoohydrodynamics (MHD) code M3D-C1 matches closely the coherent EHO properties from external magnetics data and internal measurements using the ECE, BES, ECE-Imaging and microwave imaging reflectometer (MIR) diagnostics, as well as the kink/peeling mode properties found by the ideal MHD code ELITE. Numerical investigations indicate that the low-n EHO-like solutions from M3D-C1 are destabilized by rotation and/or rotational shear while high-n modes are stabilized. This effect is independent of the rotation direction, suggesting that EHOs can be destabilized in principle with rotation in either direction. The modeling results are consistent with observations of EHO, support the proposed theory of the EHO as a low-n kink/peeling mode destabilized by edge E x B rotational shear, and improve our understanding and confidence in creating and sustaining QH-mode in present and future devices. C1 [Chen, Xi; Burrell, K. H.; Ferraro, N. M.; Osborne, T. H.; Garofalo, A. M.; Groebner, R. J.; Muscatello, C. M.; Snyder, P. B.] Gen Atom, POB 85608, San Diego, CA 92186 USA. [Austin, M. E.] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA. [Kramer, G. J.; Nazikian, R.; Solomon, W. M.; Tobias, B. J.] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Luhmann, N. C., Jr.; Ren, X.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. [Luhmann, N. C., Jr.; Ren, X.] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA. [McKee, G. R.; Yan, Z.] Univ Wisconsin, Dept Engn, Madison, WI 53706 USA. RP Chen, X (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. EM chenxi@fusion.gat.com OI Solomon, Wayne/0000-0002-0902-9876 FU US Department of Energy, Office of Science, Office of Fusion Energy Sciences [DE-FC02-04ER54698, DE-FG03-97ER54415, DE-AC02-09CH11466, DE-FG02-99ER54531, DE-FG02-08ER54999] FX This material is based upon work supported by the US Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility, under Awards DE-FC02-04ER54698, DE-FG03-97ER54415, DE-AC02-09CH11466, DE-FG02-99ER54531, and DE-FG02-08ER54999. DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP. The author (XC) would like to thank T. Strait, C. Paz-Soldan, C. Petty, G. Canal, Y. Zhao, M. Chen, and the DIII-D team. NR 49 TC 1 Z9 1 U1 7 U2 15 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0029-5515 EI 1741-4326 J9 NUCL FUSION JI Nucl. Fusion PD JUL PY 2016 VL 56 IS 7 AR 076011 DI 10.1088/0029-5515/56/7/076011 PG 16 WC Physics, Fluids & Plasmas SC Physics GA DQ0YV UT WOS:000378928600013 ER PT J AU Lanctot, MJ Olofsson, KEJ Capella, M Humphreys, DA Eidietis, N Hanson, JM Paz-Soldan, C Strait, EJ Walker, ML AF Lanctot, M. J. Olofsson, K. E. J. Capella, M. Humphreys, D. A. Eidietis, N. Hanson, J. M. Paz-Soldan, C. Strait, E. J. Walker, M. L. TI Error field optimization in DIII-D using extremum seeking control SO NUCLEAR FUSION LA English DT Article DE error field optimization; real-time control; non-axisymmetric fields ID HIGH-BETA; MAGNETIC-FIELDS; D PLASMAS; TOKAMAK; TRANSPORT; MODE; NSTX AB DIII-D experiments have demonstrated a new real-time approach to tokamak error field control based on maximizing the toroidal angular momentum. This approach uses extremum seeking control theory to optimize the error field in real time without inducing instabilities. Slowly-rotating n = 1 fields (the dither), generated by external coils, are used to perturb the angular momentum, monitored in real-time using a charge-exchange spectroscopy diagnostic. Simple signal processing of the rotation measurements extracts information about the rotation gradient with respect to the control coil currents. This information is used to converge the control coil currents to a point that maximizes the toroidal angular momentum. The technique is well-suited for multi-coil, multi-harmonic error field optimizations in disruption sensitive devices as it does not require triggering locked tearing modes or plasma current disruptions. Control simulations highlight the importance of the initial search direction on the rate of the convergence, and identify future algorithm upgrades that may allow more rapid convergence that projects to convergence times in ITER on the order of tens of seconds. C1 [Lanctot, M. J.; Humphreys, D. A.; Eidietis, N.; Paz-Soldan, C.; Strait, E. J.; Walker, M. L.] Gen Atom, POB 85608, San Diego, CA 92186 USA. [Olofsson, K. E. J.] Oak Ridge Associated Univ, POB 117, Oak Ridge, TN 37831 USA. [Capella, M.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Hanson, J. M.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. RP Lanctot, MJ (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. EM lanctot@fusion.gat.com RI Lanctot, Matthew J/O-4979-2016 OI Lanctot, Matthew J/0000-0002-7396-3372 FU U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences [DE-FC02-04ER54698, DE-AC05-06OR23100, DE-FG02-04ER54761]; U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internships Program (SULI) FX The authors thank R. Johnson, B. Penaflor and B. Sammuli for their assistance in the development of the PCS code for the ESEFC algorithm. They acknowledge R. Groebner for his development of the real-time CER analysis code in the DIII-D PCS. They also gratefully acknowledge helpful discussions with Drs. W.M. Solomon and A.M. Garofalo and thank them for suggestions on the original manuscript. This material is based upon work supported in part by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility, under Awards DE-FC02-04ER54698, DE-AC05-06OR23100 and DE-FG02-04ER54761. M. Capella was supported in part by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internships Program (SULI). DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP NR 40 TC 0 Z9 0 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0029-5515 EI 1741-4326 J9 NUCL FUSION JI Nucl. Fusion PD JUL PY 2016 VL 56 IS 7 AR 076003 DI 10.1088/0029-5515/56/7/076003 PG 12 WC Physics, Fluids & Plasmas SC Physics GA DQ0YV UT WOS:000378928600005 ER PT J AU Gilbert, I Nisoli, C Schiffer, P AF Gilbert, Ian Nisoli, Cristiano Schiffer, Peter TI FRUSTRATION by design SO PHYSICS TODAY LA English DT Article ID ARTIFICIAL SPIN ICE AB Geometrical frustration is a condition that occurs when a material's lattice geometry precludes minimizing the energy of all the interactions among pairs of neighbors simultaneously. The simplest example is three antiferromagnetically coupled Ising spins, pointing up or down, on the corners of an equilateral triangle: It is impossible to arrange the spins so that each pair is antiparallel. In more complex magnetic lattices, the frustrated state can arise from the combination of lattice geometry and the strength and sign of the interactions among the magnetic dipole moments. 1 (See the article by Roderich Moessner and Art Ramirez, PHYSICS TODAY, February 2006, page 24.) A wide variety of exotic and collective phenomena sometimes arises from the competing interactions. A prime example is spin liquids, materials in which the local atomic moments fluctuate down to the lowest accessible temperatures and never settle into a static ground-state configuration. C1 [Gilbert, Ian] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA. [Nisoli, Cristiano] Los Alamos Natl Lab, Los Alamos, NM USA. [Schiffer, Peter] Univ Illinois, Phys, Champaign, IL USA. [Schiffer, Peter] Univ Illinois, Res, Champaign, IL USA. RP Gilbert, I (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA. FU US Department of Energy, Office of Basic Energy Sciences, Materials Science and Engineering Division FX We are grateful for assistance and feedback from our many collaborators and colleagues and for financial support from the US Department of Energy, Office of Basic Energy Sciences, Materials Science and Engineering Division. Alex David Jerez Roman created the title-page image, and Katelyn Gamble prepared other images. NR 19 TC 5 Z9 5 U1 5 U2 8 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0031-9228 EI 1945-0699 J9 PHYS TODAY JI Phys. Today PD JUL PY 2016 VL 69 IS 7 BP 54 EP 59 PG 6 WC Physics, Multidisciplinary SC Physics GA DQ4KT UT WOS:000379173500020 ER PT J AU Glownia, J Misewich, J AF Glownia, James Misewich, James TI Peter Pitirimovich Sorokin OBITUARY SO PHYSICS TODAY LA English DT Biographical-Item C1 [Glownia, James] US DOE, Germantown, MD 20874 USA. [Misewich, James] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Glownia, J (reprint author), US DOE, Germantown, MD 20874 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0031-9228 EI 1945-0699 J9 PHYS TODAY JI Phys. Today PD JUL PY 2016 VL 69 IS 7 BP 71 EP 72 PG 3 WC Physics, Multidisciplinary SC Physics GA DQ4KT UT WOS:000379173500023 ER PT J AU Ma, J Qin, H Yu, Z Li, DH AF Ma Jun Qin Hong Yu Zhi Li Dehui TI Nonlinear Simulations of Coalescence Instability Using a Flux Difference Splitting Method SO PLASMA SCIENCE & TECHNOLOGY LA English DT Article DE magnetohydrodynamics; nonlinear simulation; finite volume method; instability ID HYPERBOLIC CONSERVATION-LAWS; APPROXIMATE RIEMANN SOLVER; IDEAL MAGNETOHYDRODYNAMICS; SCHEMES; MHD AB A flux difference splitting numerical scheme based on the finite volume method is applied to study ideal/resistive magnetohydrodynamics. The ideal/resistive MHD equations are cast as a set of hyperbolic conservation laws, and we develop a numerical capability to solve the weak solutions of these hyperbolic conservation laws by combining a multi-state Harten-Lax-Van Leer approximate Riemann solver with the hyperbolic divergence cleaning technique, high order shock-capturing reconstruction schemes, and a third order total variance diminishing Runge-Kutta time evolving scheme. The developed simulation code is applied to study the long time nonlinear evolution of the coalescence instability. It is verified that small structures in the instability oscillate with time and then merge into medium structures in a coherent manner. The medium structures then evolve and merge into large structures, and this trend continues through all scale-lengths. The physics of this interesting nonlinear dynamics is numerically analyzed. C1 [Ma Jun; Yu Zhi; Li Dehui] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China. [Qin Hong] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China. [Qin Hong] Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RP Ma, J (reprint author), Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China. EM junma@ipp.ac.cn FU National Magnetic Confinement Fusion Science Program of China [2013GB111002, 2013GB105003, 2013CB111000, 2014GB124005, 2015GB111003]; National Natural Science Foundation of China [11305171, 11405208]; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics [NSFC-11261140328]; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences [DSJJ-15-JC02]; CAS Program for the Interdisciplinary Collaboration Team FX supported by the National Magnetic Confinement Fusion Science Program of China (Nos. 2013GB111002, 2013GB105003, 2013CB111000, 2014GB124005, 2015GB111003), National Natural Science Foundation of China (Nos. 11305171, 11405208), JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC-11261140328), the Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences (DSJJ-15-JC02) and the CAS Program for the Interdisciplinary Collaboration Team NR 27 TC 0 Z9 0 U1 4 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1009-0630 J9 PLASMA SCI TECHNOL JI Plasma Sci. Technol. PD JUL PY 2016 VL 18 IS 7 BP 714 EP 719 DI 10.1088/1009-0630/18/7/03 PG 6 WC Physics, Fluids & Plasmas SC Physics GA DQ1BK UT WOS:000378935600003 ER PT J AU Green, MA Emery, K Hishikawa, Y Warta, W Dunlop, ED AF Green, Martin A. Emery, Keith Hishikawa, Yoshihiro Warta, Wilhelm Dunlop, Ewan D. TI Solar cell efficiency tables (version 48) SO PROGRESS IN PHOTOVOLTAICS LA English DT Article DE solar cell efficiency; photovoltaic efficiency; energy conversion efficiency ID CONVERSION EFFICIENCY; CONCENTRATOR; STABILITY; MODULE AB Consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules are presented. Guidelines for inclusion of results into these tables are outlined, and new entries since January 2016 are reviewed. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Green, Martin A.] Univ New S Wales, Australian Ctr Adv Photovolta, Sydney, NSW 2052, Australia. [Emery, Keith] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Denver, CO 80401 USA. [Hishikawa, Yoshihiro] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta RCPV, Cent 2,Umezono 1-1-1, Tsukuba, Ibaraki 3058568, Japan. [Warta, Wilhelm] Fraunhofer Inst Solar Energy Syst, Characterisat & Simulat CalLab Cells, Heidenhofstr 2, D-79110 Freiburg, Germany. [Dunlop, Ewan D.] European Commiss, Joint Res Ctr, Renewable Energy Unit, Inst Energy, Via E Fermi 2749, IT-21027 Ispra, VA, Italy. RP Green, MA (reprint author), Univ New S Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia. EM m.green@unsw.edu.au FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory; Japanese New Energy and Industrial Technology Development Organisation (NEDO); Japanese Ministry of Economy, Trade and Industry (METI) FX The Australian Centre for Advanced Photovoltaics commenced operation in February 2013 with support from the Australian Government through the Australian Renewable Energy Agency (ARENA). The Australian Government does not accept responsibility for the views, information or advice expressed herein. The work by K. Emery was supported by the U.S. Department of Energy under contract no. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. The work at AIST was supported in part by the Japanese New Energy and Industrial Technology Development Organisation (NEDO) and by the Japanese Ministry of Economy, Trade and Industry (METI). NR 54 TC 85 Z9 86 U1 96 U2 142 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1062-7995 EI 1099-159X J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD JUL PY 2016 VL 24 IS 7 BP 905 EP 913 DI 10.1002/pip.2788 PG 9 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DQ4DN UT WOS:000379154200001 ER PT J AU Welch, AW Baranowski, LL Zawadzki, P DeHart, C Johnston, S Lany, S Wolden, CA Zakutayev, A AF Welch, Adam W. Baranowski, Lauryn L. Zawadzki, Pawel DeHart, Clay Johnston, Steve Lany, Stephan Wolden, Colin A. Zakutayev, Andriy TI Accelerated development of CuSbS2 thin film photovoltaic device prototypes SO PROGRESS IN PHOTOVOLTAICS LA English DT Article DE combinatorial; CuSbS2; chalcogenide; thin film; earth abundant; sputtering ID SOLAR-CELLS; HIGH-EFFICIENCY; DESIGN; LAYERS; OXIDE AB Development of alternative thin film photovoltaic technologies is an important research topic because of the potential of low-cost, high-efficiency solar cells to produce terawatt levels of clean power. However, this development of unexplored yet promising absorbers can be hindered by complications that arise during solar cell fabrication. Here, a high-throughput combinatorial method is applied to accelerate development of photovoltaic devices, in this case, using the novel CuSbS2 absorber via a newly developed three-stage self-regulated growth process to control absorber purity and orientation. Photovoltaic performance of the absorber, using the typical substrate CuInxGa1-xSe2 (CIGS) device architecture, is explored as a function of absorber quality and thickness using a variety of back contacts. This study yields CuSbS2 device prototypes with similar to 1% conversion efficiency, suggesting that the optimal CuSbS2 device fabrication parameters and contact selection criteria are quite different than for CIGS, despite the similarity of these two absorbers. The CuSbS2 device efficiency is at present limited by low short-circuit current because of bulk recombination related to defects, and a small open-circuit voltage because of a theoretically predicted cliff-type conduction band offset between CuSbS2 and CdS. Overall, these results illustrate both the potential and limits of combinatorial methods to accelerate the development of thin film photovoltaic devices using novel absorbers. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Welch, Adam W.; Baranowski, Lauryn L.; Zawadzki, Pawel; DeHart, Clay; Johnston, Steve; Lany, Stephan; Zakutayev, Andriy] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Welch, Adam W.; Baranowski, Lauryn L.; Wolden, Colin A.] Colorado Sch Mines, Golden, CO 80401 USA. RP Welch, AW; Zakutayev, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM adam.w.welch@gmail.com; Andriy.Zakutayev@nrel.gov OI Zakutayev, Andriy/0000-0002-3054-5525; Lany, Stephan/0000-0002-8127-8885 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, as a part of the SunShot initiative [DE-AC36-08GO28308]; Department of Defense FX The "Rapid Development of Earth-abundant Thin Film Solar Cells" project is supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, as a part of the SunShot initiative, under contract no. DE-AC36-08GO28308 to NREL. L. L. B. was supported by the Department of Defense through the National Defense Science and Engineering Graduate Fellowship. We would like to acknowledge our NREL colleagues Ingrid Repins and Miguel Contreras for discussion and help with thin film chalcogenide device fabrication and characterization, Jeff Alleman, Steven Robbins, and Danny Yerks for assistance minimizing chamber down time and building the J-V mapping tool, and Bobby To for SEM characterization. NR 44 TC 5 Z9 5 U1 18 U2 32 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1062-7995 EI 1099-159X J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD JUL PY 2016 VL 24 IS 7 BP 929 EP 939 DI 10.1002/pip.2735 PG 11 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DQ4DN UT WOS:000379154200004 ER PT J AU Muller, M Marion, B Kurtz, S Ghosal, K Burroughs, S Libby, C Enbar, N AF Muller, Matthew Marion, Bill Kurtz, Sarah Ghosal, Kanchan Burroughs, Scott Libby, Cara Enbar, Nadav TI A side-by-side comparison of CPV module and system performance SO PROGRESS IN PHOTOVOLTAICS LA English DT Article DE concentrator PV; CPV system; derates; performance losses AB A side-by-side comparison is made between concentrator photovoltaic module and system direct current aperture efficiency data with a focus on quantifying system performance losses. The individual losses measured/calculated, when combined, are in good agreement with the total loss seen between the module and the system. Results indicate that for the given test period, the largest individual loss of 3.7% relative is due to the baseline performance difference between the individual module and the average for the 200 modules in the system. A basic empirical model is derived based on module spectral performance data and the tabulated losses between the module and the system. The model predicts instantaneous system direct current aperture efficiency with a root mean square error of 2.3% relative. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Muller, Matthew; Marion, Bill; Kurtz, Sarah] Natl Renewable Energy Lab, Golden, CO USA. [Ghosal, Kanchan; Burroughs, Scott] Semprius Inc, 4915 Prospectus Dr,Suite C, Durham, NC 27713 USA. [Libby, Cara; Enbar, Nadav] Elect Power Res Inst, 3420 Hillview Ave, Palo Alto, CA 94304 USA. RP Muller, M (reprint author), Natl Renewable Energy Lab, Golden, CO USA. EM Matthew.Muller@nrel.gov FU U.S. Department of Energy [DE-AC36-99GO10337] FX The authors wish to thank J. Rodriguez and B. Sekulic for technical assistance with data collection at NREL and SolarTAC. Special thanks are given to EPRI for sharing the Semprius system data that have made this research possible. This work was completed under Contract No. DE-AC36-99GO10337 with the U.S. Department of Energy. NR 31 TC 0 Z9 0 U1 1 U2 1 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1062-7995 EI 1099-159X J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD JUL PY 2016 VL 24 IS 7 BP 940 EP 954 DI 10.1002/pip.2736 PG 15 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DQ4DN UT WOS:000379154200005 ER PT J AU Jordan, DC Kurtz, SR VanSant, K Newmiller, J AF Jordan, Dirk C. Kurtz, Sarah R. VanSant, Kaitlyn Newmiller, Jeff TI Compendium of photovoltaic degradation rates SO PROGRESS IN PHOTOVOLTAICS LA English DT Article DE photovoltaic modules; photovoltaic systems; performance; outdoor testing; degradation rates; non-linearity; photovoltaic ageing ID SYSTEMS AB Published data on photovoltaic (PV) degradation measurements were aggregated and re-examined. The subject has seen an increased interest in recent years resulting in more than 11000 degradation rates in almost 200 studies from 40 different countries. As studies have grown in number and size, we found an impact from sampling bias attributable to size and accuracy. Because of the correlational nature of this study we examined the data in several ways to minimize this bias. We found median degradation for x-Si technologies in the 0.5-0.6%/year range with the mean in the 0.8-0.9%/year range. Hetero-interface technology (HIT) and microcrystalline silicon (mu c-Si) technologies, although not as plentiful, exhibit degradation around 1%/year and resemble thin-film products more closely than x-Si. Several studies showing low degradation for copper indium gallium selenide (CIGS) have emerged. Higher degradation for cadmium telluride (CdTe) has been reported, but these findings could reflect a convolution of less accurate studies and longer stabilization periods for some products. Significant deviations for beginning-of-life measurements with respect to nameplate rating have been documented over the last 35years. Therefore, degradation rates that use nameplate rating as reference may be significantly impacted. Studies that used nameplate rating as reference but used solar simulators showed less variation than similar studies using outdoor measurements, even when accounting for different climates. This could be associated with confounding effects of measurement uncertainty and soiling that take place outdoors. Hotter climates and mounting configurations that lead to sustained higher temperatures may lead to higher degradation in some, but not all, products. Wear-out non-linearities for the worst performing modules have been documented in a few select studies that took multiple measurements of an ensemble of modules during the lifetime of the system. However, the majority of these modules exhibit a fairly linear decline. Modeling these non-linearities, whether they occur at the beginning-of-life or end-of-life in the PV life cycle, has an important impact on the levelized cost of energy. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Jordan, Dirk C.; Kurtz, Sarah R.] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Denver, CO 80401 USA. [VanSant, Kaitlyn] Colorado Sch Mines, 1500 Illinois St, Golden, CO 80401 USA. [Newmiller, Jeff] DNV GL, 2420 Camino Ramon,Suite 300, San Ramon, CA 95483 USA. RP Jordan, DC (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Denver, CO 80401 USA. EM dirk.jordan@nrel.gov FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory FX We would like to thank Timothy Silverman and Katherine Jordan. This work was supported by the U.S. Department of Energy under contract no. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. NR 35 TC 4 Z9 4 U1 8 U2 10 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1062-7995 EI 1099-159X J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD JUL PY 2016 VL 24 IS 7 BP 978 EP 989 DI 10.1002/pip.2744 PG 12 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DQ4DN UT WOS:000379154200008 ER PT J AU Basore, PA AF Basore, Paul A. TI Paths to future growth in photovoltaics manufacturing SO PROGRESS IN PHOTOVOLTAICS LA English DT Article DE photovoltaics; manufacturing; capex ID COST AB The past decade has seen rapid growth in the photovoltaics industry, followed in the past few years by a period of much slower growth. A simple model that is consistent with this historical record can be used to predict the future evolution of the industry. Two key parameters are identified that determine the outcome. One is the annual global investment in manufacturing capacity normalized to the manufacturing capacity for the previous year (capacity-normalized capital investment rate, CapIR, units $/W). The other is how much capital investment is required for each watt of annual manufacturing capacity, normalized to the service life of the assets (capacity-normalized capital demand rate, CapDR, units $/W). If these two parameters remain unchanged from the values they have held for the past few years, global manufacturing capacity will peak in the next few years and then decline. However, it only takes a modest improvement in CapIR to ensure future growth in photovoltaics. Several approaches are presented that can enable the required improvement in CapIR. If, in addition, there is an accompanying improvement in CapDR, the rate of growth can be substantially accelerated. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Basore, Paul A.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Basore, PA (reprint author), POB 18726, Golden, CO 80402 USA. EM pvspecialist@gmail.com FU U.S. Department of Energy [DE-AC36-08GO28308]; National Renewable Energy Laboratory; DOE Solar Energy Technologies Office FX This work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308 with the National Renewable Energy Laboratory. Funding was provided by the DOE Solar Energy Technologies Office. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. NR 9 TC 1 Z9 1 U1 4 U2 9 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1062-7995 EI 1099-159X J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD JUL PY 2016 VL 24 IS 7 BP 1024 EP 1031 DI 10.1002/pip.2761 PG 8 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA DQ4DN UT WOS:000379154200013 ER PT J AU Zhang, YX Hu, C Hu, Y Zhao, L Ding, Y Sun, X Liang, AJ Zhang, Y He, SL Liu, DF Yu, L Liu, GD Dong, XL Gu, GD Chen, CT Xu, ZY Zhou, XJ AF Zhang, Yuxiao Hu, Cheng Hu, Yong Zhao, Lin Ding, Ying Sun, Xuan Liang, Aiji Zhang, Yan He, Shaolong Liu, Defa Yu, Li Liu, Guodong Dong, Xiaoli Gu, Genda Chen, Chuangtian Xu, Zuyan Zhou, Xingjiang TI In situ carrier tuning in high temperature superconductor Bi2Sr2CaCu2O8+delta by potassium deposition SO SCIENCE BULLETIN LA English DT Article DE Bi2212; Superconductor; K-deposition; Photoemission; Fermi surface ID ANGLE-RESOLVED PHOTOEMISSION; T-C; ELECTRONIC-STRUCTURE; NORMAL-STATE; PHASE; SURFACE; DISPERSION; PSEUDOGAP; GAP AB We report a successful tuning of the hole doping level over a wide range in high temperature superconductor Bi2Sr2CaCu2O8+delta (Bi2212) through successive in situ potassium (K) deposition. By taking high resolution angle-resolved photoemission measurements on the Fermi surface and band structure of an overdoped Bi2212 (T-c - 76K) at different stages of K deposition, we found that the area of the hole-like Fermi surface around the Brillouin zone corner (pi,pi) shrinks with increasing K deposition. This indicates a continuous hole concentration change from initial similar to 0.26 to eventual 0.09 after extensive K deposition, a net doping level change of 0.17 that makes it possible to bring Bi2212 from being originally overdoped, to optimally-doped, and eventually becoming heavily underdoped. The electronic behaviors with K deposition are consistent with those of Bi2212 samples with different hole doping levels. These results demonstrate that K deposition is an effective way of in situ controlling the hole concentration in Bi2212. This work opens a good way of studying the doping evolution of electronic structure and establishing the electronic phase diagram in Bi2212 that can be extended to other cuprate superconductors. C1 [Zhang, Yuxiao; Hu, Cheng; Hu, Yong; Zhao, Lin; Ding, Ying; Sun, Xuan; Liang, Aiji; Zhang, Yan; He, Shaolong; Liu, Defa; Yu, Li; Liu, Guodong; Dong, Xiaoli; Zhou, Xingjiang] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China. [Gu, Genda] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, New York, NY 11973 USA. [Chen, Chuangtian; Xu, Zuyan] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China. [Zhou, Xingjiang] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China. RP Zhao, L; Zhou, XJ (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China. EM lzhao@iphy.ac.cn; xjzhou@iphy.ac.cn FU National Natural Science foundation of China [11190022, 11334010, 11534007]; National Basic Research Program of China [2015CB921000]; Strategic Priority Research Program (B) of Chinese Academy of Sciences [XDB07020300] FX XJZ thanks financial support from the National Natural Science foundation of China (11190022,11334010 and 11534007), the National Basic Research Program of China (2015CB921000) and the Strategic Priority Research Program (B) of Chinese Academy of Sciences (XDB07020300). NR 36 TC 1 Z9 1 U1 7 U2 11 PU SCIENCE PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA SN 2095-9273 EI 2095-9281 J9 SCI BULL JI Sci. Bull. PD JUL PY 2016 VL 61 IS 13 BP 1037 EP 1043 DI 10.1007/s11434-016-1106-y PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DQ2GV UT WOS:000379021600006 ER PT J AU Hasan, MM Dholabhai, PP Castro, RHR Uberuaga, BP AF Hasan, Md. M. Dholabhai, Pratik P. Castro, Ricardo H. R. Uberuaga, Blas P. TI Stabilization of MgAl2O4 spinel surfaces via doping SO SURFACE SCIENCE LA English DT Article DE Surfaces; Spinel; Doping; Atomistic calculations ID VACANCY FORMATION ENERGIES; REDUCING GRAIN-BOUNDARY; EFFECTIVE IONIC-RADII; ATOMISTIC SIMULATION; SOLUTE SEGREGATION; CRYSTAL-SURFACES; DISLOCATION LINE; DOPED CERIA; OXIDES; NONSTOICHIOMETRY AB Surface structure of complex oxides plays a vital role in processes such as sintering, thin film growth, and catalysis, as well as being a critical factor determining the stability of nanoparticles. Here, we report atomistic calculations of the low-index stoichiometric magnesium aluminate spinel (MgAl2O4) surfaces, each with two different chemical terminations. High temperature annealing was used to explore the potential energy landscape and provide more stable surface structures. We find that the lowest energy surface is {100} while the highest energy surface is {111). The surfaces were subsequently doped with three trivalent dopants (Y3+, Gd3+, La3+) and one tetravalent dopant (Zr4+) and both the surface segregation energies of the dopants and surface energies of the doped surface were determined. All of the dopants reduce the surface energy of spinel, though this reduction in energy depends on both the size and valence of the dopant. Dopants with larger ionic radius tend to segregate to the surface more strongly and reduce the surface energy to a greater extent. Furthermore, the ionic valence of the dopants seems to have a stronger influence on the segregation than does ionic size. For both undoped and doped spinel, the predicted crystal shape is dominated by {100} surfaces, but the relative fraction of the various surfaces changes with doping due to the unequal changes in energy, which has implications on equilibrium nano particle shapes and therefore on applications sensitive to surface properties. (C) 2016 Elsevier B.V. All rights reserved. C1 [Hasan, Md. M.; Castro, Ricardo H. R.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. [Dholabhai, Pratik P.; Uberuaga, Blas P.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. RP Uberuaga, BP (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. EM blas@lanl.gov FU U.S. Department of Energy-Early Career Program Award [BES ER46795]; UC Lab Fees Research Program [12-LF-239032]; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division [2013LANL8400]; National Nuclear Security Administration of the (U.S.) Department of Energy [DE-AC52-06NA25396] FX RC. and M.H. thank the U.S. Department of Energy-Early Career Program Award BES ER46795 for support. P.P.D. acknowledges support by the UC Lab Fees Research Program 12-LF-239032. B.P.U. acknowledges support by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division (2013LANL8400). 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. M.H. acknowledges the computational resources provided by Professor Roland Faller at UC Davis. NR 49 TC 3 Z9 3 U1 12 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 EI 1879-2758 J9 SURF SCI JI Surf. Sci. PD JUL PY 2016 VL 649 BP 138 EP 145 DI 10.1016/j.susc.2016.01.028 PG 8 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA DQ3IW UT WOS:000379097000020 ER PT J AU Fortman, JL Mukhopadhyay, A AF Fortman, Jeffrey L. Mukhopadhyay, Aindrila TI The Future of Antibiotics: Emerging Technologies and Stewardship SO TRENDS IN MICROBIOLOGY LA English DT Editorial Material ID THERAPY AB Antibiotic resistance is on the rise while the number of antibiotics being brought to market continues to drop. While this is a dire situation, a number of emerging technologies have the potential to reverse this trend. These, and supporting legislative initiatives, promise to stave off the post-antibiotic era. C1 [Fortman, Jeffrey L.] Amer Assoc Advancement Sci, Washington, DC 20301 USA. [Mukhopadhyay, Aindrila] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Biol Syst & Engn, Berkeley, CA 94720 USA. RP Mukhopadhyay, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Biol Syst & Engn, Berkeley, CA 94720 USA. EM amukhopadhyay@lbl.gov FU US Department of Defense (DOD) American Association for the Advancement of Science (AAAS) Fellowship; DOE [DE-AC05-06OR23100]; Lawrence Berkeley National Laboratory [DE-AC02-050H11231]; US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-050H11231] FX JLF is supported by a US Department of Defense (DOD) American Association for the Advancement of Science (AAAS) Fellowship, administered by Oak Ridge Institute for Science and Education (ORISE) through an interagency agreement between DOD and the U.S. Department of Energy (DOE). ORISE is managed by ORAU under DOE contract number DE-AC05-06OR23100. AM is supported through contract DE-AC02-050H11231 between Lawrence Berkeley National Laboratory and the US Department of Energy, Office of Science, Office of Biological and Environmental Research. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. All opinions expressed in this paper are the authors' opinions and do not necessarily reflect the policies and views of the DOD, DOE, or ORAU/ORISE. NR 10 TC 1 Z9 1 U1 8 U2 30 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0966-842X EI 1878-4380 J9 TRENDS MICROBIOL JI Trends Microbiol. PD JUL PY 2016 VL 24 IS 7 BP 515 EP 517 DI 10.1016/j.tim.2016.04.003 PG 3 WC Biochemistry & Molecular Biology; Microbiology SC Biochemistry & Molecular Biology; Microbiology GA DQ3KD UT WOS:000379100300001 PM 27229181 ER PT J AU Meagher, RJ Negrete, OA Van Rompay, KK AF Meagher, Robert J. Negrete, Oscar A. Van Rompay, Koen K. TI Engineering Paper-Based Sensors for Zika Virus SO TRENDS IN MOLECULAR MEDICINE LA English DT Editorial Material ID AMPLIFICATION AB The emergence of Zika virus (ZIKV) infections in Latin America and Southeast Asia has created an urgent need for new, simple, yet sensitive, diagnostic tests. We highlight recent work using paper-based sensors coupled with CRISPR/Cas9 to detect ZIKV RNA as a new approach to achieve rapid development and deployment of field-ready diagnostics for emerging infectious diseases. C1 [Meagher, Robert J.; Negrete, Oscar A.] Sandia Natl Labs, Biotechnol & Bioengn Dept, Livermore, CA 94551 USA. [Van Rompay, Koen K.] Univ Calif Davis, Calif Natl Primate Res Ctr, Davis, CA 95616 USA. RP Meagher, RJ (reprint author), Sandia Natl Labs, Biotechnol & Bioengn Dept, Livermore, CA 94551 USA. EM rmeaghe@sandia.gov NR 9 TC 1 Z9 1 U1 20 U2 39 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1471-4914 EI 1471-499X J9 TRENDS MOL MED JI Trends Mol. Med PD JUL PY 2016 VL 22 IS 7 BP 529 EP 530 DI 10.1016/j.molmed.2016.05.009 PG 2 WC Biochemistry & Molecular Biology; Cell Biology; Medicine, Research & Experimental SC Biochemistry & Molecular Biology; Cell Biology; Research & Experimental Medicine GA DQ3ID UT WOS:000379095100001 PM 27255410 ER PT J AU Telang, A Gill, AS Kumar, M Teysseyre, S Qian, D Mannava, SR Vasudevan, VK AF Telang, Abhishek Gill, Amrinder S. Kumar, Mukul Teysseyre, Sebastien Qian, Dong Mannava, Seetha R. Vasudevan, Vijay K. TI Iterative thermomechanical processing of alloy 600 for improved resistance to corrosion and stress corrosion cracking SO ACTA MATERIALIA LA English DT Article DE EBSD; Corrosion; Stress corrosion cracking; Grain boundary; Thermo-mechanical processing ID GRAIN-BOUNDARY-CHARACTER; AUSTENITIC STAINLESS-STEEL; INTERGRANULAR CORROSION; CARBIDE PRECIPITATION; SENSITIZATION; 304-STAINLESS-STEEL; SUSCEPTIBILITY; BEHAVIOR; IGSCC; MISORIENTATIONS AB The effects of thermomechanical processing (TMP) with iterative cycles of 10% cold work and strain annealing, on corrosion and stress corrosion cracking (SCC) behavior of alloy 600 was studied. The associated microstructural and cracking mechanisms were elucidated using transmission (TEM) and scanning electron microscopy (SEM), coupled with precession electron diffraction (PED) and electron back scatter diffraction (EBSD) mapping. TMP resulted in increased fraction of low coincident site lattice (CSL) grain boundaries whilst decreasing the connectivity of random high angle grain boundaries. This disrupted random grain boundary network and large fraction of low CSL boundaries reduced the propensity to sensitization, i.e. carbide precipitation and Cr depletion. After TMP, alloy 600 (GBE) also showed higher intergranular corrosion resistance. Slow strain rate tests in 0.01 M Na2S4O6 solution at room temperature show TMP lowered susceptibility to intergranular SCC. To better understand the improvements in corrosion and SCC resistance, orientation maps of regions around cracks were used to analyze the interactions between cracks and various types of grain boundaries and triple junctions (TJs). Detailed analysis showed that cracks were arrested at J1 (1-CSL) and J2 (2-CSL) type of TJs. The probability for crack arrest at special boundaries and TJs, calculated using percolative models, was found to have increased after TMP, which also explains the increase in resistance to corrosion and SCC in GBE alloy 600. A clear correlation and mechanistic understanding relating grain boundary character, sensitization, carbide precipitation and susceptibility to corrosion and stress corrosion cracking was established. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Telang, Abhishek; Mannava, Seetha R.; Vasudevan, Vijay K.] Univ Cincinnati, Dept Mech & Mat Engn, Cincinnati, OH 45221 USA. [Gill, Amrinder S.] AK Steel, Res Ctr, 705 Curtis St, Middletown, OH USA. [Kumar, Mukul] Lawrence Livermore Natl Lab, Livermore, CA USA. [Teysseyre, Sebastien] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Qian, Dong] Univ Texas Dallas, Richardson, TX 75083 USA. RP Vasudevan, VK (reprint author), Univ Cincinnati, Dept Mech & Mat Engn, Cincinnati, OH 45221 USA. EM vijay.vasudevan@uc.edu RI Qian, Dong/B-2326-2008; OI Qian, Dong/0000-0001-9367-0924; kumar, mukul/0000-0003-3544-0869 FU Nuclear Energy University Program (NEUP) of the US Department of Energy [102835, DE-AC07-051D14517]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Science and Engineering under FWP [SCW0939]; State of Ohio, Department of Development; Third Frontier Commission FX The authors are grateful for financial support of this research by the Nuclear Energy University Program (NEUP) of the US Department of Energy Contract #102835 issued under prime contract DE-AC07-051D14517 to Battelle Energy Alliance, LLC. This work was partly performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. The efforts of MK were supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Science and Engineering under FWP# SCW0939. We also gratefully acknowledge the contribution of the State of Ohio, Department of Development and Third Frontier Commission, which provided funding in support of the "Ohio Center for Laser Shock Processing for Advanced Materials and Devices" and the equipment in the Center that was used in this work. The authors would also like to thank Dr. Kai Zweiacker and Prof. Jorg M. K. Wiezorek at the University of Pittsburgh for help with the TEM/PED characterization. Any opinions, findings, conclusions, or recommendations expressed in these documents are those of the author(s) and do not necessarily reflect the views of the DOE or the State of Ohio, Department of Development. NR 44 TC 1 Z9 1 U1 17 U2 17 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 EI 1873-2453 J9 ACTA MATER JI Acta Mater. PD JUL PY 2016 VL 113 BP 180 EP 193 DI 10.1016/j.actamat.2016.05.009 PG 14 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DP7HR UT WOS:000378670300019 ER PT J AU Zhang, RF Beyerlein, IJ Zheng, SJ Zhang, SH Stukowski, A Germann, TC AF Zhang, R. F. Beyerlein, I. J. Zheng, S. J. Zhang, S. H. Stukowski, A. Germann, T. C. TI Manipulating dislocation nucleation and shear resistance of bimetal interfaces by atomic steps SO ACTA MATERIALIA LA English DT Article DE MD simulations; Interface; Dislocation; Plasticity; Mechanical strength ID MOLECULAR-DYNAMICS SIMULATIONS; SEVERE PLASTIC-DEFORMATION; HIGH-STRENGTH; FCC METALS; NANOSTRUCTURED METALS; BICRYSTAL INTERFACES; CU; COMPOSITES; TWIN; BEHAVIOR AB By means of atomistic simulations and interface dislocation theory, the mechanism of dislocation nucleation and shear resistance of various stepped fcc/bcc interfaces are comparatively studied using the Kurdjumov-Sachs (KS) Cu/Nb interface as a prototype. It is found that the introduction of atomic steps at the flat Cu{111}/{110}Nb KS interface does not change the most preferred slip systems, but influences the nucleation sites at the interface during tension loading, indicating that the flat and stepped interfaces possesses comparable energetic barriers for dislocation nucleation. During shear loading, the steps may significantly enhance the resistance to interface sliding by propagating partial dislocations that facilitate the emission and growth of parallel twins via cross slip. When the parallel twins are not favored or are hindered, the interface sliding will dominate in a "climbing peak-to-valley" manner. These results provide an effective pathway to solve the trade-off dilemma between dislocation nucleation and interface sliding by appropriately manipulating atomic steps at the flat interface in the design of high-strength metallic materials. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Zhang, R. F.; Zhang, S. H.] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China. [Zhang, R. F.; Zhang, S. H.] Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing 100191, Peoples R China. [Beyerlein, I. J.; Germann, T. C.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Zheng, S. J.] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. [Stukowski, A.] Tech Univ Darmstadt, Jovanka Bontschits Str 2, D-64287 Darmstadt, Germany. RP Zhang, RF (reprint author), Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China.; Zhang, RF (reprint author), Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing 100191, Peoples R China. EM zrf@buaa.edu.cn OI Germann, Timothy/0000-0002-6813-238X FU Fundamental Research Funds for the Central Universities; National Natural Science Foundation of China [51471018]; National Thousand Young Talents Program of China FX This work is supported by the Fundamental Research Funds for the Central Universities, National Natural Science Foundation of China (51471018), and National Thousand Young Talents Program of China. NR 50 TC 1 Z9 1 U1 8 U2 17 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 EI 1873-2453 J9 ACTA MATER JI Acta Mater. PD JUL PY 2016 VL 113 BP 194 EP 205 DI 10.1016/j.actamat.2016.05.015 PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DP7HR UT WOS:000378670300020 ER PT J AU Kumar, NAPK Li, C Leonard, KJ Bei, H Zinkle, SJ AF Kumar, N. A. P. Kiran Li, C. Leonard, K. J. Bei, H. Zinkle, S. J. TI Microstructural stability and mechanical behavior of FeNiMnCr high entropy alloy under ion irradiation SO ACTA MATERIALIA LA English DT Article DE High entropy alloy; Radiation-induced segregation; Dislocation loops; Concentrated multi-component solid solution alloy; Irradiation defects ID RADIATION-INDUCED SEGREGATION; AUSTENITIC STAINLESS-STEEL; CR-NI ALLOYS; GRAIN-BOUNDARY; FERRITIC/MARTENSITIC STEELS; NEUTRON-IRRADIATION; ELECTRON-IRRADIATION; FUSION APPLICATIONS; PRINCIPAL ELEMENTS; MARTENSITIC STEEL AB In recent years, high entropy alloys (HEAs) have attracted significant attention due to their excellent mechanical properties and good corrosion resistance, making them potential candidates for high temperature fission and fusion structural applications. However there is very little known about their radiation resistance, particularly at elevated temperatures relevant for energy applications. In the present study, a single phase (face centered cubic) concentrated solid solution alloy of composition 27%Fe-28%Ni-27%Mn-18%Cr was irradiated with 3 or 5.8 MeV Ni ions at temperatures ranging from room temperature to 700 degrees C and midrange doses from 0.03 to 10 displacements per atom (dpa). Transmission electron microscopy (TEM), scanning transmission electron microscopy with energy dispersive x-ray spectrometry (STEM/EDS) and X-ray diffraction (XRD) were used to characterize the radiation defects and microstructural changes. Irradiation at higher temperatures showed evidence of relatively sluggish solute diffusion with limited solute depletion or enrichment at grain boundaries. The main microstructural feature at all temperatures was high-density small dislocation loops. Voids were not observed at any irradiation condition. Nano-indentation tests on specimens irradiated at room temperature showed a rapid increase in hardness similar to 35% and similar to 80% higher than the unirradiated value at 0.03 and 0.3 dpa midrange doses, respectively. The irradiation-induced hardening was less pronounced for 500 degrees C irradiations (<20% increase after 3 dpa). Overall, the examined HEA material exhibits superior radiation resistance compared to conventional single phase Fe-Cr-Ni austenitic alloys such as stainless steels. The present study provides insight on the fundamental irradiation behavior of a single phase HEA material over a broad range of irradiation temperatures. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Kumar, N. A. P. Kiran; Leonard, K. J.; Bei, H.; Zinkle, S. J.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Li, C.; Zinkle, S. J.] Univ Tennessee, Knoxville, TN USA. RP Kumar, NAPK (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. EM anantha.nimishakavi@mail.mcgill.ca OI Zinkle, Steven/0000-0003-2890-6915; Bei, Hongbin/0000-0003-0283-7990 FU Office of Fusion Energy Science, US Department of Energy [DE-AC05-00OR22725]; UT-Battelle, LLC FX The authors gratefully acknowledge Dr. Yanwen Zhang, Dr. Lin Shao and research staff at IBML-UTK and REF-TAMU, for performing the ion irradiations. We thank Dr. Chad Parish for his assistance in operating Talos F200X microscope. This research and operation of the Talos F200X transmission electron microscope was supported by the Office of Fusion Energy Science, US Department of Energy under contract DE-AC05-00OR22725 with, UT-Battelle, LLC. NR 118 TC 7 Z9 7 U1 57 U2 96 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 EI 1873-2453 J9 ACTA MATER JI Acta Mater. PD JUL PY 2016 VL 113 BP 230 EP 244 DI 10.1016/j.actamat.2016.05.007 PG 15 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DP7HR UT WOS:000378670300024 ER PT J AU Thomas, SL King, AH Srolovitz, DJ AF Thomas, Spencer L. King, Alexander H. Srolovitz, David J. TI When twins collide: Twin junctions in nanocrystalline nickel SO ACTA MATERIALIA LA English DT Article DE Five-fold twins; Annealing twin; Grain growth; Molecular dynamics; Nanocrystalline; Disclination ID ANNEALING TWINS; GRAIN-GROWTH; DEFORMATION MECHANISMS; METALS; PARTICLES; FILMS; GOLD; RECRYSTALLIZATION; DISCLINATIONS; NUCLEATION AB We present the results of large-scale molecular dynamics simulations of grain growth in polycrystalline nickel with nanoscale grains. The simulations show that grain growth is accompanied by coherent twin boundary (013) generation. As the grains grow, twins collide; such collisions result in twin junctions. We catalog all possible twin junctions and show examples of each from the simulations. These include junctions of 2-4 CTBs with grain boundaries and five-fold twin junctions (penta-twins). We elucidate the mechanisms by which all of these junctions form and their relative frequencies. Penta-twins, which are rare in coarse microstructures, occur frequently in nanocrystalline metals. Their absence in macro scale samples can be traced to the wedge-disclination character (and, consequently, an elastic energy that diverges with sample size). In the nanocrystalline case, the presence of penta-twins can be traced to this twin collision formation mechanism, which is responsible for their wedge-disclination dipole character (relatively small elastic energy). We demonstrate how all CTB junctions, especially penta-twins, retard grain growth. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Thomas, Spencer L.; Srolovitz, David J.] Univ Penn, Philadelphia, PA 19104 USA. [King, Alexander H.] US DOE, Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA. RP Srolovitz, DJ (reprint author), Univ Penn, Philadelphia, PA 19104 USA. EM thospe@seas.upenn.edu; alexking@ameslab.gov; srol@seas.upenn.edu RI King, Alexander/P-6497-2015 OI King, Alexander/0000-0001-7101-6585 FU DOE, Office of Science, BES [DE-AC02-07CH11358]; National Science Foundation [ACI-1053575] FX The authors gratefully acknowledge useful discussions with Prof. Kun Zhou and Dr. Hui Feng from the Nanyang Technological University and Prof. Nikolaos Aravas of the University of Thessaly on disclination elasticity and thank Dr. Emanuel Lazar of the University of Pennsylvania for providing Fig. 1a. SLT and DJS at the University of Pennsylvania designed this research, performed and analyzed the computer simulations, and performed the theoretical analysis. Work at the Ames Laboratory was supported by DOE, Office of Science, BES under Contract # DE-AC02-07CH11358. AHK provided geometrical analyses and interpretation of the structures, and contributed to the interpretation of the processes that produced them. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1053575 [52]. NR 52 TC 2 Z9 2 U1 14 U2 28 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 EI 1873-2453 J9 ACTA MATER JI Acta Mater. PD JUL PY 2016 VL 113 BP 301 EP 310 DI 10.1016/j.actamat.2016.04.030 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DP7HR UT WOS:000378670300030 ER PT J AU Pyatina, T Sugama, T AF Pyatina, Tatiana Sugama, Toshifumi TI Acid resistance of calcium aluminate cement-fly ash F blends SO ADVANCES IN CEMENT RESEARCH LA English DT Article DE admixtures; aluminous cement; cement paste ID SULFATE ATTACK; INFRARED-SPECTROSCOPY; SILICATE HYDRATE; PORTLAND-CEMENT; TRICALCIUM PHOSPHATE; HARDENED PASTE; SULFURIC-ACID; PART I; DURABILITY; GEL AB The short-term resistance to sulfuric acid at 90 degrees C of four calcium aluminate cement (CAC)-fly ash class F (FAF) blends activated with sodium metasilicate (thermal shock resistant cements (TSRCs)), cured at 300 degrees C, was compared to that of a calcium phosphate cement (CPC) (CAC-FAF blend activated with sodium hexametaphosphate) and a Portland cement class G/silica blend. The mechanical properties and compositions of the acid-exposed samples were evaluated by measuring their compressive strength and by means of x-ray diffraction, mu EDX (energy-dispersive x-ray spectrometry), thermogravimetric and Fourier transform infrared analyses. All calcium-containing hydrates were sensitive to the conditions of acid exposure. In the TSRC blends, these hydrates included hydrogrossular, feldspar family minerals and zeolites; in CPC, feldspar minerals and phosphate phases; and in the class G/silica blend, portlandite and tobermorite. Crystalline calcium sulfates formed in the acid-exposed surfaces with the exception of the most aluminium-rich TSRC samples where only potassium(sodium) aluminium sulfate, alunite, was detected. This sample underwent the least changes in weight, compressive strength and had the lowest sulfur permeation into the sample core. Calcium sulfates precipitated on sample surfaces limited sulfur penetration into the core of calcium-rich TSRC, CPC and G/silica blends. C1 [Pyatina, Tatiana; Sugama, Toshifumi] Brookhaven Natl Lab, Sustainable Energy Technol, Upton, NY 11973 USA. RP Pyatina, T (reprint author), Brookhaven Natl Lab, Sustainable Energy Technol, Upton, NY 11973 USA. FU Geothermal Technologies Office in the US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) under the US DOE, Washington, DC [DE-AC02-98CH 10886]; US Department of Energy, Office of Basic Energy Sciences [DE-SC0012704] FX This publication was based on work supported by the Geothermal Technologies Office in the US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), under the auspices of the US DOE, Washington, DC, under contract DE-AC02-98CH 10886. The research was carried out in part at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the US Department of Energy, Office of Basic Energy Sciences, under contract DE-SC0012704. NR 61 TC 0 Z9 0 U1 7 U2 9 PU ICE PUBLISHING PI WESTMINISTER PA INST CIVIL ENGINEERS, 1 GREAT GEORGE ST, WESTMINISTER SW 1P 3AA, ENGLAND SN 0951-7197 EI 1751-7605 J9 ADV CEM RES JI Adv. Cem. Res. PD JUL PY 2016 VL 28 IS 7 BP 433 EP 457 DI 10.1680/jadcr.15.00139 PG 25 WC Construction & Building Technology; Materials Science, Multidisciplinary SC Construction & Building Technology; Materials Science GA DP6OM UT WOS:000378616500002 ER PT J AU Austin, KG Price, LL McGraw, SM Leahy, G Lieberman, HR AF Austin, Krista G. Price, Lori Lyn McGraw, Susan M. Leahy, Guy Lieberman, Harris R. TI Demographic, Lifestyle Factors, and Reasons for Use of Dietary Supplements by Air Force Personnel SO AEROSPACE MEDICINE AND HUMAN PERFORMANCE LA English DT Article DE multivitamin; protein supplements; deployment history; military operations; Armed Forces; occupational health ID PREVALENT; ADULTS AB BACKGROUND: Dietary supplement (DS) use is common among U.S. Army personnel to purportedly improve health, provide energy, and increase strength. However, a comprehensive analysis of DS use among U.S. Air Force (USAF) personnel has not been conducted using the same survey instrument, which would permit direct comparisons to DS use by Army personnel. METHODS: A standardized questionnaire was used to assess DS use, demographic factors, and reasons for use of DS by USAF personnel (N = 1750). Logistic regression models adjusted for age, sex, and rank were used to determine relationships among categories of DS (multivitamin and multimineral, individual vitamins and minerals, protein/amino acid supplements, combination products, herbal supplements, purported steroid analogs, and other) and demographic factors. Findings were compared to reports from other military services and civilian populations. RESULTS: DS were used by 68% of USAF personnel: 35% used 1-2 DS >= 1 time/wk, 13% 3-4 DS >= 1 time/wk, and 20% >= 5 DS >= 1 time/wk. There were 45% of personnel who used a multivitamin and mineral, 33% protein supplements, 22% individual vitamins/minerals, 22% combination products, and 7% herbals. Logistic regression demonstrated aerobic exercise duration and strength training were associated with increased DS use. Individuals who previously deployed were more likely to use DS. CONCLUSIONS: Like Army personnel, college students and athletes, USAF personnel use more DS than the general population and are more likely to use purported performance enhancing DS, such as protein supplements, and concurrently consume multiple DS. C1 [Austin, Krista G.; McGraw, Susan M.; Lieberman, Harris R.] US Army, Environm Med Res Inst, Natick, MA 01760 USA. [Austin, Krista G.] Oak Ridge Inst Sci & Educ, Belcamp, MD USA. [Price, Lori Lyn] Tufts Med Ctr, Inst Clin Res & Hlth Policy Studies, Boston, MA USA. [Price, Lori Lyn] Tufts Univ, Tufts Clin & Translat Sci Inst, Boston, MA 02111 USA. [Leahy, Guy] Vet Adm Med Ctr, Durham, NC USA. RP Lieberman, HR (reprint author), US Army, Mil Nutr Div, Environm Med Res Inst, Natick, MA 01760 USA. EM harris.r.lieberman.civ@mail.mil FU U.S. Army Medical Research and Materiel Command (USAMRMC); Department of Defence Center Alliance for Nutrition and Dietary Supplements Research FX This work was supported by the U.S. Army Medical Research and Materiel Command (USAMRMC) and the Department of Defence Center Alliance for Nutrition and Dietary Supplements Research. The opinions contained herein are the private views of the authors and are not to be construed as official or as reflecting the views of the Army or the Department of Defense. Citations of commercial organizations and trade names in this report do not constitute an official Department of the Army endorsement or approval of the products or services of these organizations. NR 26 TC 2 Z9 2 U1 3 U2 4 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 USA SN 2375-6314 EI 2375-6322 J9 AEROSP MED HUM PERF JI Aerosp. Med.Hum. Perform. PD JUL PY 2016 VL 87 IS 7 BP 628 EP 637 DI 10.3357/AMHP.4513.2016 PG 10 WC Biophysics; Public, Environmental & Occupational Health; Medicine, Research & Experimental SC Biophysics; Public, Environmental & Occupational Health; Research & Experimental Medicine GA DP4LB UT WOS:000378466300007 PM 27503043 ER PT J AU Wu, WH Davis, RW AF Wu, Weihua Davis, Ryan W. TI One-pot bioconversion of algae biomass into terpenes for advanced biofuels and bioproducts SO ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS LA English DT Article DE One-pot conversion; Terpene; Microbial consortium; Algal biofuel; Caryophyllene; Chamigrene ID ESSENTIAL OIL; CARYOPHYLLENE; LIMONENE AB Under robust algae growth conditions, algal carbohydrates and proteins typically comprise up to similar to 80% of the ash-free dry weight of microalgae biomass. Therefore, production of algal biofuel through comprehensive utilization of all algal components and the addition of high energy density fuel compoundswith "fit for purpose" properties or high-value bioproducts will both diminish the process cost and improve the overall process feasibility. In this study, we firstly demonstrated the concept of a "one-pot" bioconversion of algal carbohydrate and protein into value-added terpene compounds as advanced biofuel and high value bioproducts to improve the overall process feasibility through the development of engineered microbial consortium. The consortium for caryophyllene production yielded the highest titer of total terpene, up to 507.4 mg/L, including 471 mg/L of sesquiterpene, 36.4 mg/L of monoterpene, and 124.4 mg/L of caryophyllene on algal hydrolysate from Nannochloropsis sp. Additionally, the consortium expressing chamigrene synthase produced 187 mg/L total terpene including 87 mg/L of monoterpene, 100 mg/L of sesquiterpene, and 62 mg/L chamigrene on hydrolysate from benthic polyculture biomass. Compared to the yields of terpene extracted from plant tissue, both consortia increased the terpene yield about 3-40 times, which makes it a promising alternative pathway for terpene production. (C) 2016 Elsevier B.V. All rights reserved. C1 [Wu, Weihua; Davis, Ryan W.] Sandia Natl Labs, Dept Biomass Sci & Convers Technol, 7011 East Ave, Livermore, CA USA. RP Wu, WH; Davis, RW (reprint author), Sandia Natl Labs, Dept Biomass Sci & Convers Technol, 7011 East Ave, Livermore, CA USA. EM wwu@sandia.gov; rwdavis@sandia.gov FU United States Department of Energy [DE-ACO4-94AL85000]; DOE-EERE BioEnergy Technologies Office (BETO) [26336] FX The authors would like to thank Mark J. Zivojnovich, VP of Project Development at HydroMentia, Inc. for providing benthic algae biomass samples for this effort. We would also like to thank Prof. James Liao, Chair of the Department of Chemical and Biomolecular Engineering at UCLA for providing the E. coli YH40 strain. Special thanks to Jay Keasling, Taek-Soon Lee, and Jorge Alanzo-Gutierrez for providing strains and giving advice on expressing TS. Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-ACO4-94AL85000. Support is acknowledged from DOE-EERE BioEnergy Technologies Office (BETO) under agreement number 26336. NR 29 TC 2 Z9 2 U1 12 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2211-9264 J9 ALGAL RES JI Algal Res. PD JUL PY 2016 VL 17 BP 316 EP 320 DI 10.1016/j.algal.2016.05.005 PG 5 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA DQ0BV UT WOS:000378863700036 ER PT J AU Carney, LT Wilkenfeld, JS Lane, PD Solberg, OD Fuqua, ZB Cornelius, NG Gillespie, S Williams, KP Samocha, TM Lane, TW AF Carney, Laura T. Wilkenfeld, Joshua S. Lane, Pam D. Solberg, Owen D. Fuqua, Zachary B. Cornelius, Nina G. Gillespie, Shaunette Williams, Kelly P. Samocha, Tzachi M. Lane, Todd W. TI Pond Crash Forensics: Presumptive identification of pond crash agents by next generation sequencing in replicate raceway mass cultures of Nannochloropsis salina SO ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS LA English DT Article DE Algae mass culture; Biocontamination; Biomass algal crash; Second generation sequencing; Microbiome analysis ID ROTIFER; GROWTH; DIVERSITY; BACTERIA; ALGAE; COMMUNITIES; MICROALGAE; ECOLOGY; READS; WATER AB Productivity of algal mass culture can be severely reduced by contaminating organisms. It is, therefore, important to identify contaminants, determine their effect on productivity and, ultimately, develop countermeasures against such contamination. In the present study we utilized microbiome analysis by second-generation sequencing of small subunit rRNA genes to characterize the predator and pathogen burden of open raceway cultures of Nannochloropsis salina. Samples were analyzed from replicate raceways before and after crashes. In one culture cycle, we identified two algivorous species, the rotifer Brachionus and gastrotrich Chaetonotus, the presence of which may have contributed to the loss of algal biomass. In the second culture cycle, the raceways were treated with hypochlorite in an unsuccessful attempt to interdict the crash. Our analyses were shown to be an effective strategy for the identification of the biological contaminants and the characterization of intervention strategies. (C) 2016 Elsevier B.V. All rights reserved. C1 [Carney, Laura T.; Lane, Pam D.; Solberg, Owen D.; Williams, Kelly P.; Lane, Todd W.] Sandia Natl Labs, Syst Biol, POB 969,MS 9671, Livermore, CA 94551 USA. [Wilkenfeld, Joshua S.; Fuqua, Zachary B.; Cornelius, Nina G.; Gillespie, Shaunette; Samocha, Tzachi M.] Texas A&M AgriLife Res Mariculture Lab Flour Bluf, 4301 Waldron Rd, Corpus Christi, TX 78418 USA. [Carney, Laura T.; Wilkenfeld, Joshua S.] Heliae Dev LLC, 578 E Germann Rd, Gilbert, AZ 85297 USA. RP Lane, TW (reprint author), Sandia Natl Labs, Syst Biol, POB 969,MS 9292, Livermore, CA 94551 USA. EM twlane@sandia.gov OI Samocha, Tzachi/0000-0001-8051-499X FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; BioEnergy Technology Office, U.S. Department of Energy [NL0022897] 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. Microbiome analysis at Sandia National Laboratories was supported by the BioEnergy Technology Office, U.S. Department of Energy under Award #NL0022897. NR 37 TC 1 Z9 1 U1 13 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2211-9264 J9 ALGAL RES JI Algal Res. PD JUL PY 2016 VL 17 BP 341 EP 347 DI 10.1016/j.algal.2016.05.011 PG 7 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA DQ0BV UT WOS:000378863700039 ER PT J AU Hu, Z Mao, JH Curtis, C Huang, G Gu, SD Heiser, L Lenburg, ME Korkola, JE Bayani, N Samarajiwa, S Seoane, JA Dane, MA Esch, A Feiler, HS Wang, NJ Hardwicke, MA Laquerre, S Jackson, J Wood, KW Weber, B Spellman, PT Aparicio, S Wooster, R Caldas, C Gray, JW AF Hu, Zhi Mao, Jian-Hua Curtis, Christina Huang, Ge Gu, Shenda Heiser, Laura Lenburg, Marc E. Korkola, James E. Bayani, Nora Samarajiwa, Shamith Seoane, Jose A. Dane, Mark A. Esch, Amanda Feiler, Heidi S. Wang, Nicholas J. Hardwicke, Mary Ann Laquerre, Sylvie Jackson, Jeff Wood, Kenneth W. Weber, Barbara Spellman, Paul T. Aparicio, Samuel Wooster, Richard Caldas, Carlos Gray, Joe W. TI Genome co-amplification upregulates a mitotic gene network activity that predicts outcome and response to mitotic protein inhibitors in breast cancer SO BREAST CANCER RESEARCH LA English DT Article DE Breast cancer; Mitotic index; Predictive biomarker; Novel therapeutics ID PROLIFERATION SIGNATURE; TUMOR-SUSCEPTIBILITY; ANTITUMOR-ACTIVITY; PROGNOSTIC VALUE; AURORA B; EXPRESSION; IDENTIFICATION; ARCHITECTURE; GSK1070916; THERAPY AB Background: High mitotic activity is associated with the genesis and progression of many cancers. Small molecule inhibitors of mitotic apparatus proteins are now being developed and evaluated clinically as anticancer agents. With clinical trials of several of these experimental compounds underway, it is important to understand the molecular mechanisms that determine high mitotic activity, identify tumor subtypes that carry molecular aberrations that confer high mitotic activity, and to develop molecular markers that distinguish which tumors will be most responsive to mitotic apparatus inhibitors. Methods: We identified a coordinately regulated mitotic apparatus network by analyzing gene expression profiles for 53 malignant and non-malignant human breast cancer cell lines and two separate primary breast tumor datasets. We defined the mitotic network activity index (MNAI) as the sum of the transcriptional levels of the 54 coordinately regulated mitotic apparatus genes. The effect of those genes on cell growth was evaluated by small interfering RNA (siRNA). Results: High MNAI was enriched in basal-like breast tumors and was associated with reduced survival duration and preferential sensitivity to inhibitors of the mitotic apparatus proteins, polo-like kinase, centromere associated protein E and aurora kinase designated GSK462364, GSK923295 and GSK1070916, respectively. Co-amplification of regions of chromosomes 8q24, 10p15-p12, 12p13, and 17q24-q25 was associated with the transcriptional upregulation of this network of 54 mitotic apparatus genes, and we identify transcription factors that localize to these regions and putatively regulate mitotic activity. Knockdown of the mitotic network by siRNA identified 22 genes that might be considered as additional therapeutic targets for this clinically relevant patient subgroup. Conclusions: We define a molecular signature which may guide therapeutic approaches for tumors with high mitotic network activity. C1 [Hu, Zhi; Huang, Ge; Gu, Shenda; Heiser, Laura; Korkola, James E.; Dane, Mark A.; Esch, Amanda; Feiler, Heidi S.; Wang, Nicholas J.; Spellman, Paul T.; Gray, Joe W.] Oregon Hlth & Sci Univ, Sch Med, Dept Biomed Engn, 3303 SW Bond Ave,CH13B, Portland, OR 97239 USA. [Mao, Jian-Hua; Bayani, Nora] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94127 USA. [Curtis, Christina; Seoane, Jose A.] Stanford Univ, Sch Med, Div Oncol, Dept Med, Stanford, CA 94305 USA. [Curtis, Christina; Seoane, Jose A.] Stanford Univ, Sch Med, Dept Genet, Stanford, CA 94305 USA. [Lenburg, Marc E.] Boston Univ, Dept Pathol & Lab Med, Sch Med, Boston, MA 02215 USA. [Samarajiwa, Shamith] Univ Cambridge, MRC Canc Unit, Cambridge CB2 0XZ, England. [Hardwicke, Mary Ann; Laquerre, Sylvie; Jackson, Jeff; Weber, Barbara; Wooster, Richard] GlaxoSmithKline, Collegeville, PA 19425 USA. [Wood, Kenneth W.] Cytokinetics Inc, San Francisco, CA 94080 USA. [Aparicio, Samuel] BC Canc Res Ctr, Mol Oncol, Vancouver, BC, Canada. [Caldas, Carlos] Canc Res UK, Cambridge Inst, Cambridge, England. RP Gray, JW (reprint author), Oregon Hlth & Sci Univ, Sch Med, Dept Biomed Engn, 3303 SW Bond Ave,CH13B, Portland, OR 97239 USA.; Caldas, C (reprint author), Canc Res UK, Cambridge Inst, Cambridge, England. EM carlos.caldas@cancer.org.uk; Grayjo@ohsu.edu RI Lenburg, Marc/B-8027-2008; OI Lenburg, Marc/0000-0002-5760-4708; Curtis, Christina/0000-0003-0166-3802; Samarajiwa, Shamith/0000-0003-1046-0601; Caldas, Carlos/0000-0003-3547-1489 FU Office of Science, Office of Biological & Environmental Research, of the U.S. Department of Energy [DE-AC02-05CH11231]; National Institutes of Health, National Cancer Institute [P50 CA 58207, U54 CA 112970, U24 CA143799, R01 CA115481]; SmithKline Beecham Corporation; Stand Up to Cancer American Association for Cancer Research Dream Team Translational Cancer Research Grant [SU2C-AACR-DT0409]; Cancer Research UK; British Columbia Cancer Agency FX The research was supported by the Director, Office of Science, Office of Biological & Environmental Research, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, by the National Institutes of Health, National Cancer Institute grants P50 CA 58207 (JWG), U54 CA 112970 (JWG), U24 CA143799 (JWG), R01 CA115481 (JHM), SmithKline Beecham Corporation (JWG), and by the Stand Up to Cancer American Association for Cancer Research Dream Team Translational Cancer Research Grant SU2C-AACR-DT0409. CaC is funded by Cancer Research UK. SA is funded by the British Columbia Cancer Agency. NR 45 TC 1 Z9 1 U1 2 U2 3 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1465-542X EI 1465-5411 J9 BREAST CANCER RES JI Breast Cancer Res. PD JUL 1 PY 2016 VL 18 AR 70 DI 10.1186/s13058-016-0728-y PG 12 WC Oncology SC Oncology GA DQ0OJ UT WOS:000378898900001 PM 27368372 ER PT J AU Hanemann, M Sayre, SS Dale, L AF Hanemann, Michael Sayre, Susan Stratton Dale, Larry TI The downside risk of climate change in California's Central Valley agricultural sector SO CLIMATIC CHANGE LA English DT Article ID UTILITY FUNCTIONS; LOSS AVERSION; MODEL; SYSTEM AB Downscaled climate change projections for California, when translated into changes in irrigation water delivery and then into profit from agriculture in the Central Valley, show an increase in conventional measures of variability such as the variance. However, these increases are modest and mask a more pronounced increase in downside risk, defined as the probability of unfavorable outcomes of water supply or profit. This paper describes the concept of downside risk and measures it as it applies to outcomes for Central Valley agriculture projected under four climate change scenarios. We compare the effect of downside risk aversion versus conventional risk aversion or risk neutrality when assessing the impact of climate change on the profitability of Central Valley agriculture. We find that, when downside risk is considered, the assessment of losses due to climate change increases substantially. C1 [Hanemann, Michael] Arizona State Univ, Tempe, AZ USA. [Sayre, Susan Stratton] Smith Coll, Northampton, MA 01063 USA. [Dale, Larry] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Dale, L (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM lldale@lbl.gov OI Sayre, Susan/0000-0003-4755-8362 FU NSF [1204774] FX Dr. Hanemann's research was supported by NSF Award 1204774 to Arizona State University. Our research relies on modeling results provided to us by California Department of Water Resources and CVPM computer code provided by Steven Hatchett. We thank Sydny Fujita and Nathaniel Bush for research assistance. This draft has benefitted from the helpful suggestions of several anonymous reviewers and the associate editor. Any remaining errors are our own. NR 35 TC 0 Z9 0 U1 10 U2 15 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0165-0009 EI 1573-1480 J9 CLIMATIC CHANGE JI Clim. Change PD JUL PY 2016 VL 137 IS 1-2 BP 15 EP 27 DI 10.1007/s10584-016-1651-z PG 13 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA DP8IP UT WOS:000378741900002 ER PT J AU Minamoto, Y Chen, JH AF Minamoto, Yuki Chen, Jacqueline H. TI DNS of a turbulent lifted DME jet flame SO COMBUSTION AND FLAME LA English DT Article DE Direct numerical simulation (DNS); Dimethyl ether (DME); Negative temperature coefficient (NTC); Low-temperature heat release (LTHR); Lifted flame; Diesel combustion ID DIMETHYL ETHER; BOUNDARY-CONDITIONS; NONPREMIXED FLAMES; PREMIXED FLAMES; STABILIZATION; SIMULATIONS; TEMPERATURE; COMBUSTION; IGNITION; METHANE AB A three-dimensional direct numerical simulation (DNS) of a turbulent lifted dimethyl ether (DME) slot jet flame was performed at elevated pressure to study interactions between chemical reactions with low temperature heat release (LTHR), negative temperature coefficient (NTC) reactions and shear generated turbulence in a jet in a heated coflow. By conditioning on mixture fraction, local reaction zones and local heat release rate, the turbulent flame is revealed to exhibit a "pentabrachial" structure that was observed for a laminar DME lifted flame [Krisman et al., (2015)]. The propagation characteristics of the stabilization and triple points are also investigated. Potential stabilization points, spatial locations characterized by preferred temperature and mixture fraction conditions, exhibit autoignition characteristics with large reaction rate and negligible molecular diffusion. The actual stabilization point which coincides with the most upstream samples from the pool of potential stabilization points fovr each spanwise location shows passive flame structure with large diffusion. The propagation speed along the stoichiometric surface near the triple point is compared with the asymptotic value obtained from theory [Ruetsch et al., (1995)]. At stoichiometric conditions, the asymptotic and averaged DNS values of flame displacement speed deviate by a factor of 1.7. However, accounting for the effect of low-temperature species on the local flame speed increase, these two values become comparable. This suggests that the two-stage ignition influences the triple point propagation speed through enhancement of the laminar flame speed in a configuration where abundant low-temperature products from the first stage, low-temperature ignition are transported to the lifted flame by the high-velocity jet. (C) 2016 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Minamoto, Yuki; Chen, Jacqueline H.] Sandia Natl Labs, Livermore, CA 94550 USA. [Minamoto, Yuki] Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan. RP Minamoto, Y (reprint author), Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan. EM yminamot@gmail.com OI Minamoto, Yuki/0000-0002-6157-8370 FU Office of Science of the U.S. Department of Energy [DE-AC05-000R22725]; NSF/DOE Partnership on Advanced Combustion Engines [BET-1258646]; US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; United States Department of Energy [DE-AC04-94AL85000] FX This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract DE-AC05-000R22725. The work at Sandia National Laboratories was supported by NSF/DOE Partnership on Advanced Combustion Engines under Contract BET-1258646 and by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94AL85000. NR 39 TC 3 Z9 3 U1 16 U2 21 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 EI 1556-2921 J9 COMBUST FLAME JI Combust. Flame PD JUL PY 2016 VL 169 BP 38 EP 50 DI 10.1016/j.combustflame.2016.04.007 PG 13 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA DP6CD UT WOS:000378583600005 ER PT J AU Karami, S Hawkes, ER Talei, M Chen, JH AF Karami, Shahram Hawkes, Evatt R. Talei, Mohsen Chen, Jacqueline H. TI Edge flame structure in a turbulent lifted flame: A direct numerical simulation study SO COMBUSTION AND FLAME LA English DT Article DE Lifted flame; Edge flame; DNS; Curvature; Strain rate; Scalar dissipation rate ID JET DIFFUSION FLAMES; PREMIXED METHANE-AIR; REACTION-ZONES REGIME; STRAIN-RATE; TRIPLE FLAMES; MIXING LAYERS; PLIF MEASUREMENTS; STABILIZATION MECHANISM; PROPAGATION VELOCITY; SCALAR DISSIPATION AB This paper presents a statistical analysis of edge flames in a turbulent lifted flame using direct numerical simulation (DNS). To investigate the dynamics of edge flames, a theoretical framework describing the edge-flame propagation velocity as a function of propagation velocities of mixture-fraction and product mass fraction iso-surfaces at the flame base is used. The correlations between these propagation velocities and several other variables are then studied, including iso-surface curvatures, iso-surface orientations, strain rates, scalar dissipation rate and gradients of product mass fraction. The contribution of these parameters to the overall behaviour of the edge flame is also investigated using conditional averaging on two-dimensional spatial locations at the flame base. The analysis reveals that the tangential and normal strain rates in addition to the curvatures and scalar dissipation rates have significant contributions to the overall behaviour of the edge flame. The elliptical motion of the flame base described in our earlier study [1] is extended to provide a clearer picture of how these various parameters affect the large fluctuations of edge-flame velocity observed at the flame base. (C) 2016 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Karami, Shahram; Hawkes, Evatt R.] Univ New S Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia. [Hawkes, Evatt R.] Univ New S Wales, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia. [Talei, Mohsen] Univ Melbourne, Dept Mech Engn, Melbourne, Vic 3010, Australia. [Chen, Jacqueline H.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. RP Karami, S (reprint author), Univ New S Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia. EM s.karami@unsw.edu.au RI Hawkes, Evatt/C-5307-2012; OI Hawkes, Evatt/0000-0003-0539-7951; Karami, Shahram/0000-0003-0254-4733 FU Australian Research Council; Australian Government; US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; US Department of Energy [DE-AC04-94-AL85000] FX This work was supported by the Australian Research Council. The research benefited from computational resources provided through the National Computational Merit Allocation Scheme, supported by the Australian Government. The computational facilities supporting this project included the Australian NCI National Facility, the partner share of the NCI facility provided by Intersect Australia Pty Ltd., the Peak Computing Facility of the Victorian Life Sciences Computation Initiative (VLSCI), iVEC (Western Australia), and the UNSW Faculty of Engineering. This research was sponsored by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy under Contract DE-AC04-94-AL85000. NR 106 TC 3 Z9 3 U1 4 U2 8 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 EI 1556-2921 J9 COMBUST FLAME JI Combust. Flame PD JUL PY 2016 VL 169 BP 110 EP 128 DI 10.1016/j.combustflame.2016.03.006 PG 19 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA DP6CD UT WOS:000378583600011 ER PT J AU Sarathy, SM Kukkadapu, G Mehl, M Javed, T Ahmed, A Naser, N Tekawade, A Kosiba, G AlAbbad, M Singh, E Park, S Al Rashidi, M Chung, SH Roberts, WL Oehlschlaeger, MA Sung, CJ Farooq, A AF Sarathy, S. Mani Kukkadapu, Goutham Mehl, Marco Javed, Tamour Ahmed, Ahfaz Naser, Nimal Tekawade, Aniket Kosiba, Graham AlAbbad, Mohammed Singh, Eshan Park, Sungwoo Al Rashidi, Mariam Chung, Suk Ho Roberts, William L. Oehlschlaeger, Matthew A. Sung, Chih-Jen Farooq, Aamir TI Compositional effects on the ignition of FACE gasolines SO COMBUSTION AND FLAME LA English DT Article DE Surrogate fuels; Chemical kinetic modeling; Octane number; Shock tube; Rapid compression machine; Ignition ID RAPID COMPRESSION MACHINE; HEPTANE/ISO-OCTANE/TOLUENE MIXTURES; LOW-TEMPERATURE AUTOIGNITION; INTERNAL-COMBUSTION ENGINES; ADVANCED DISTILLATION CURVE; TOLUENE REFERENCE FUELS; MOLE BLENDING RULE; OCTANE NUMBERS; SHOCK-TUBE; N-HEPTANE AB As regulatory measures for improved fuel economy and decreased emissions are pushing gasoline engine combustion technologies towards extreme conditions (i.e., boosted and intercooled intake with exhaust gas recirculation), fuel ignition characteristics become increasingly important for enabling stable operation. This study explores the effects of chemical composition on the fundamental ignition behavior of gasoline fuels. Two well-characterized, high-octane, non-oxygenated FACE (Fuels for Advanced Combustion Engines) gasolines, FACE F and FACE G, having similar antiknock indices but different octane sensitivities and chemical compositions are studied. Ignition experiments were conducted in shock tubes and a rapid compression machine (RCM) at nominal pressures of 20 and 40 atm, equivalence ratios of 0.5 and 1.0, and temperatures ranging from 650 to 1270 K. Results at temperatures above 900 K indicate that ignition delay time is similar for these fuels. However, RCM measurements below 900 K demonstrate a stronger negative temperature coefficient behavior for FACE F gasoline having lower octane sensitivity. In addition, RCM pressure profiles under two-stage ignition conditions illustrate that the magnitude of low temperature heat release (LTHR) increases with decreasing fuel octane sensitivity. However, intermediate temperature heat release is shown to increase as fuel octane sensitivity increases. Various surrogate fuel mixtures were formulated to conduct chemical kinetic modeling, and complex multicomponent surrogate mixtures were shown to reproduce experimentally observed trends better than simpler two- and three-component mixtures composed of n-heptane, iso-octane, and toluene. Measurements in a Cooperative Fuels Research (CFR) engine demonstrated that the multicomponent surrogates accurately captured the antiknock quality of the FACE gasolines. Simulations were performed using multicomponent surrogates for FACE F and G to reveal the underlying chemical kinetics linking fuel composition with ignition characteristics. A key discovery of this work is the kinetic coupling between aromatics and naphthenes, which affects the radical pool population and thereby controls ignition. (C) 2016 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Sarathy, S. Mani; Javed, Tamour; Ahmed, Ahfaz; Naser, Nimal; AlAbbad, Mohammed; Singh, Eshan; Park, Sungwoo; Al Rashidi, Mariam; Chung, Suk Ho; Roberts, William L.; Farooq, Aamir] King Abdullah Univ Sci & Technol, Clean Combust Res Ctr, Thuwal, Saudi Arabia. [Kukkadapu, Goutham; Sung, Chih-Jen] Univ Connecticut, Dept Mech Engn, Storrs, CT USA. [Mehl, Marco] Lawrence Livermore Natl Lab, Livermore, CA USA. [Tekawade, Aniket; Kosiba, Graham; Oehlschlaeger, Matthew A.] Rensselaer Polytech Inst, Mech Aerosp & Nucl Engn, Troy, NY USA. RP Sarathy, SM (reprint author), King Abdullah Univ Sci & Technol, Clean Combust Res Ctr, Thuwal, Saudi Arabia. EM mani.sarathy@kaust.edu.sa RI Mehl, Marco/A-8506-2009; OI Mehl, Marco/0000-0002-2227-5035; Singh, Eshan/0000-0001-8851-4724; Sarathy, S. Mani/0000-0002-3975-6206 FU Clean Combustion Research Center; Saudi Aramco under the FUELCOM program; National Science Foundation [CBET-1402231]; U.S. Air Force Office of Scientific Research [FA9550-11-1-0261]; US Department of Energy by Lawrence Livermore National Laboratory [DE- AC52-07NA27344]; U.S. Department of Energy, Office of Vehicle Technologies FX The authors are grateful to Hendrik Muller (Saudi Aramco R&DC), Jihad Badra (Saudi Aramco R&DC), Abdulla Algam (Saudi Aramco R&DC), Emad Alawi (Saudi Aramco R&DC), and Nadim Hourani (KAUST) for the DHA results. The KAUST authors acknowledge funding support from the Clean Combustion Research Center and from Saudi Aramco under the FUELCOM program. The work at the University of Connecticut was supported by the National Science Foundation under Grant No. CBET-1402231. The Rensselaer group was supported by the U.S. Air Force Office of Scientific Research (Grant No. FA9550-11-1-0261) with Dr. Chiping Li as technical monitor. The LLNL work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE- AC52-07NA27344 and was supported by the U.S. Department of Energy, Office of Vehicle Technologies, Gurpreet Singh, program manager. NR 98 TC 12 Z9 12 U1 5 U2 9 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 EI 1556-2921 J9 COMBUST FLAME JI Combust. Flame PD JUL PY 2016 VL 169 BP 171 EP 193 DI 10.1016/j.combustflame.2016.04.010 PG 23 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA DP6CD UT WOS:000378583600015 ER PT J AU Baver, DA Myra, JR Umansky, MV AF Baver, D. A. Myra, J. R. Umansky, M. V. TI Eigenvalue Solver for Fluid and Kinetic Plasma Models in Arbitrary Magnetic Topology SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS LA English DT Article DE Plasma; eigensolver; finite difference method; finite element method; SLEPc; PETSc; field-line following coordinates; snowflake divertor ID RESISTIVE BALLOONING MODES; TOKAMAK EDGE PLASMAS; TURBULENCE; SIMULATIONS; TRANSITION; FLUCTUATIONS; GEOMETRY; CODE AB ArbiTER (Arbitrary Topology Equation Reader) is a new code for solving linear eigenvalue problems arising from a broad range of physics and geometry models. The primary application area envisioned is boundary plasma physics in magnetic confinement devices; however ArbiTER should be applicable to other science and engineering fields as well. The code permits a variable numbers of dimensions, making possible application to both fluid and kinetic models. The use of specialized equation and topology parsers permits a high degree of flexibility in specifying the physics and geometry. C1 [Baver, D. A.; Myra, J. R.] Lodestar Res Corp, Boulder, CO 80301 USA. [Umansky, M. V.] Lawrence Livermore Natl Lab, Lawrence, KS USA. RP Baver, DA (reprint author), Lodestar Res Corp, Boulder, CO 80301 USA. EM dabaver65@hotmail.com; jrmyra@lodestar.com; umansky1@llnl.gov FU U.S. Department of Energy Office of Science, Office of Fusion Energy Sciences [DE-SC0006562] FX This material is based upon work supported by the U.S. Department of Energy Office of Science, Office of Fusion Energy Sciences under Award Number DE-SC0006562. NR 30 TC 0 Z9 0 U1 2 U2 4 PU GLOBAL SCIENCE PRESS PI WANCHAI PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000, PEOPLES R CHINA SN 1815-2406 EI 1991-7120 J9 COMMUN COMPUT PHYS JI Commun. Comput. Phys. PD JUL PY 2016 VL 20 IS 1 BP 136 EP 155 DI 10.4208/cicp.191214.021015a PG 20 WC Physics, Mathematical SC Physics GA DP9RZ UT WOS:000378835800005 ER PT J AU Gedenk, E AF Gedenk, Eric TI Illuminating the Universe's Ignition SO COMPUTING IN SCIENCE & ENGINEERING LA English DT Article C1 [Gedenk, Eric] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Gedenk, E (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. EM gedenked@ornl.gov FU DOE Office of Science [DE-AC05-00OR22725]; US Department of Energy [DE-AC05-00OR22725] FX The Oak Ridge Leadership Computing Facility is a DOE Office of Science User Facility supported under contract DE-AC05-00OR22725.; This manuscript has been authored by UT-Battelle, LLC under contract number 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 nonexclusive, paid-up, irrevocable, NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 1521-9615 EI 1558-366X J9 COMPUT SCI ENG JI Comput. Sci. Eng. PD JUL-AUG PY 2016 VL 18 IS 4 BP 80 EP 83 PG 4 WC Computer Science, Interdisciplinary Applications SC Computer Science GA DP7FA UT WOS:000378663400011 ER PT J AU Sariyuce, AE Gedik, B Jacques-Silva, G Wu, KL Catalyurek, UV AF Sariyuce, Ahmet Erdem Gedik, Bugra Jacques-Silva, Gabriela Wu, Kun-Lung Catalyurek, Umit V. TI SONIC: streaming overlapping community detection SO DATA MINING AND KNOWLEDGE DISCOVERY LA English DT Article DE Streaming graph processing; Community detection; Overlapping communities ID COMPLEX NETWORKS AB A community within a graph can be broadly defined as a set of vertices that exhibit high cohesiveness (relatively high number of edges within the set) and low conductance (relatively low number of edges leaving the set). Community detection is a fundamental graph processing analytic that can be applied to several application domains, including social networks. In this context, communities are often overlapping, as a person can be involved in more than one community (e.g., friends, and family); and evolving, since the structure of the network changes. We address the problem of streaming overlapping community detection, where the goal is to maintain communities in the presence of streaming updates. This way, the communities can be updated more efficiently. To this end, we introduce SONIC-a find-and-merge type of community detection algorithm that can efficiently handle streaming updates. SONIC first detects when graph updates yield significant community changes. Upon the detection, it updates the communities via an incremental merge procedure. The SONIC algorithm incorporates two additional techniques to speed-up the incremental merge; min-hashing and inverted indexes. Results show that SONIC can provide high quality overlapping communities, while handling streaming updates several orders of magnitude faster than the alternatives performing from-scratch computation. C1 [Sariyuce, Ahmet Erdem] Sandia Natl Labs, Livermore, CA USA. [Gedik, Bugra] Bilkent Univ, Ankara, Turkey. [Jacques-Silva, Gabriela; Wu, Kun-Lung] IBM Res, IBM Thomas J Watson Res Ctr, New York, NY USA. [Catalyurek, Umit V.] Ohio State Univ, Columbus, OH 43210 USA. RP Sariyuce, AE (reprint author), Sandia Natl Labs, Livermore, CA USA. EM asariyu@sandia.gov; bgedik@cs.bilkent.edu.tr; g.jacques@us.ibm.com; klwu@us.ibm.com; umit@bmi.osu.edu NR 43 TC 0 Z9 0 U1 7 U2 7 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1384-5810 EI 1573-756X J9 DATA MIN KNOWL DISC JI Data Min. Knowl. Discov. PD JUL PY 2016 VL 30 IS 4 BP 819 EP 847 DI 10.1007/s10618-015-0440-z PG 29 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA DP9SV UT WOS:000378838400003 ER PT J AU Sadler, NC Nandhikonda, P Webb-Robertson, BJ Ansong, C Anderson, LN Smith, JN Corley, RA Wright, AT AF Sadler, Natalie C. Nandhikonda, Premchendar Webb-Robertson, Bobbie-Jo Ansong, Charles Anderson, Lindsey N. Smith, Jordan N. Corley, Richard A. Wright, Aaron T. TI Hepatic Cytochrome P450 Activity, Abundance, and Expression Throughout Human Development SO DRUG METABOLISM AND DISPOSITION LA English DT Article ID DRUG-METABOLIZING-ENZYMES; ACTIVITY-BASED PROBES; HUMAN LIVER; HUMAN TISSUES; MESSENGER-RNA; PROTEOMICS DATA; ACCURATE MASS; HUMAN ADULT; IN-VIVO; ONTOGENY AB Cytochrome P450s are oxidative metabolic enzymes that play critical roles in the biotransformation of endogenous compounds and xenobiotics. The expression and activity of P450 enzymes varies considerably throughout human development; the deficit in our understanding of these dynamics limits our ability to predict environmental and pharmaceutical exposure effects. In an effort to develop a more comprehensive understanding of the ontogeny of P450 enzymes, we employed a multi-omic characterization of P450 transcript expression, protein abundance, and functional activity. Modified mechanism-based inhibitors of P450s were used as chemical probes for isolating active P450 proteoforms in human hepatic microsomes with developmental stages ranging from early gestation to late adult. High-resolution liquid chromatography-mass spectrometry was used to identify and quantify probe-labeled P450s, allowing for a functional profile of P450 ontogeny. Total protein abundance profiles and P450 rRNA was also measured, and our results reveal life-stage-dependent variability in P450 expression, abundance, and activity throughout human development and frequent discordant relationships between expression and activity. We have significantly expanded the knowledge of P450 ontogeny, particularly at the level of individual P450 activity. We anticipate that these results will be useful for enabling predictive therapeutic dosing, and for avoiding potentially adverse and harmful reactions during maturation from both therapeutic drugs and environmental xenobiotics. C1 [Sadler, Natalie C.; Nandhikonda, Premchendar; Ansong, Charles; Anderson, Lindsey N.; Smith, Jordan N.; Corley, Richard A.; Wright, Aaron T.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Webb-Robertson, Bobbie-Jo] Pacific NW Natl Lab, Computat & Stat Analyt Div, Richland, WA 99352 USA. RP Wright, AT (reprint author), 902 Battelle Blvd,Box 999,MSIN J4-02, Richland, WA 99352 USA. EM aaron.wright@pnnl.gov RI Anderson, Lindsey /S-6375-2016; OI Anderson, Lindsey /0000-0002-8741-7823; Wright, Aaron/0000-0002-3172-5253 FU National Institutes of Health National Institute of Environmental Health Sciences [P42 ES016465]; National Institute for General Medical Sciences [P41 GM103493-11]; Intramural Research Program of the National Institutes of Health National Institute of Environmental Health Sciences FX This research was supported by the National Institutes of Health National Institute of Environmental Health Sciences [P42 ES016465]. Mass spectrometry analyses were performed in the Environmental Molecular Sciences Laboratory, a US Department of Energy Biological and Environmental Research national scientific user facility at Pacific Northwest National Laboratory. Additionally, this work used instrumentation and capabilities developed under support from the National Institute for General Medical Sciences [P41 GM103493-11]. This work was supported by the Intramural Research Program of the National Institutes of Health National Institute of Environmental Health Sciences. NR 49 TC 3 Z9 3 U1 7 U2 9 PU AMER SOC PHARMACOLOGY EXPERIMENTAL THERAPEUTICS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3995 USA SN 0090-9556 EI 1521-009X J9 DRUG METAB DISPOS JI Drug Metab. Dispos. PD JUL PY 2016 VL 44 IS 7 BP 984 EP 991 DI 10.1124/dmd.115.068593 PG 8 WC Pharmacology & Pharmacy SC Pharmacology & Pharmacy GA DP7TJ UT WOS:000378701800013 PM 27084891 ER PT J AU Chen, GY Li, M Kuttiyiel, KA Sasaki, K Kong, FP Du, CY Gao, YZ Yin, GP Adzic, RR AF Chen, Guangyu Li, Meng Kuttiyiel, Kurian A. Sasaki, Kotaro Kong, Fanpeng Du, Chunyu Gao, Yunzhi Yin, Geping Adzic, Radoslav R. TI Evaluation of Oxygen Reduction Activity by the Thin-Film Rotating Disk Electrode Methodology: the Effects of Potentiodynamic Parameters SO ELECTROCATALYSIS LA English DT Article DE ORR; TF-RDE; Electrocatalyst; Catalytic activity; Potentiodynamic parameters ID KINETIC-PARAMETERS; OXIDE FORMATION; FUEL-CELLS; ELECTROCATALYSTS; SURFACE; PLATINUM; PT(111); PT/C; CATALYST; ALLOY AB An accurate and efficient assessment of activity is critical for the research and development of electrocatalysts for oxygen reduction reaction (ORR). Currently, the methodology combining the thin-film rotating disk electrode (TF-RDE) and potentiodynamic polarization is the most commonly used to pre-evaluate ORR activity, acquire kinetic data (i.e., kinetic current, Tafel slope, etc.), and gain understanding of the ORR mechanism. However, it is often neglected that appropriate potentiodynamic parameters have to be chosen to obtain reliable results. We first evaluate the potentiodynamic and potentiostatic polarization measurements with TF-RDE to examine the ORR activity of Pt nanoelectrocatalyst. Furthermore, our results demonstrate that besides depending on the nature of electrocatalyst, the apparent ORR kinetics also strongly depends on the associated potentiodynamic parameters, such as scan rate and scan region, which have a great effect on the coverage of adsorbed OHad/O-ad on Pt surface, thereby affecting the ORR activities of both nanosized and bulk Pt. However, the apparent Tafel slopes remained nearly the same, indicating that the ORR mechanism in all the measurements was not affected by different potentiodynamic parameters. C1 [Chen, Guangyu; Kong, Fanpeng; Du, Chunyu; Gao, Yunzhi; Yin, Geping] Harbin Inst Technol, Sch Chem Engn & Technol, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China. [Chen, Guangyu; Li, Meng; Kuttiyiel, Kurian A.; Sasaki, Kotaro; Adzic, Radoslav R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Yin, GP (reprint author), Harbin Inst Technol, Sch Chem Engn & Technol, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China.; Adzic, RR (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM yingphit@hit.edu.cn; adzic@bnl.gov FU US Department of Energy, Office of Basic Energy Science, Material Science and Engineering Division, Division of Chemical Sciences, Geosciences and Biosciences Division [DE-SC0012704]; National Natural Science Foundation of China [21276058, 21433003]; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2014DX10]; China Scholarship Council; Brookhaven National Laboratory (BNL) FX This research was supported by the US Department of Energy, Office of Basic Energy Science, Material Science and Engineering Division, Division of Chemical Sciences, Geosciences and Biosciences Division, under the contract no. DE-SC0012704, by the National Natural Science Foundation of China (project nos. 21276058 and 21433003), and by the State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (project no. 2014DX10). G.Y. Chen acknowledges the financial support from both the China Scholarship Council and Brookhaven National Laboratory (BNL) to perform his work at BNL. NR 52 TC 0 Z9 0 U1 16 U2 27 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1868-2529 EI 1868-5994 J9 ELECTROCATALYSIS-US JI Electrocatalysis PD JUL PY 2016 VL 7 IS 4 BP 305 EP 316 DI 10.1007/s12678-016-0309-y PG 12 WC Chemistry, Physical; Electrochemistry SC Chemistry; Electrochemistry GA DP9GT UT WOS:000378805400006 ER PT J AU Gillingham, K Deng, H Wiser, R Darghouth, NR Nemet, G Barbose, G Rai, V Dong, CG AF Gillingham, Kenneth Deng, Hao Wiser, Ryan Darghouth, Naim Richard Nemet, Gregory Barbose, Galen Rai, Varun Dong, Changgui TI Deconstructing Solar Photovoltaic Pricing: The Role of Market Structure, Technology, and Policy SO ENERGY JOURNAL LA English DT Article DE residential photovoltaic; solar; price dispersion ID UNITED-STATES; DISPERSION; PRICES; ECONOMICS; IMPACT; ELECTRICITY; PERSISTENCE; COMPETITION; CALIFORNIA; INDUSTRY AB Solar photovoltaic (PV) system prices in the United States display considerable heterogeneity both across geographic locations and within a given location. Such heterogeneity may arise due to state and federal policies, differences in market structure, and other factors that influence demand and costs. This paper examines the relative importance of such factors on equilibrium solar PV system prices in the United States using a detailed dataset of roughly 100,000 recent residential and small commercial installations. As expected, we find that PV system prices differ based on characteristics of the systems. More interestingly, we find evidence suggesting that search costs and imperfect competition affect solar PV pricing. Installer density substantially lowers prices, while regions with relatively generous financial incentives for solar PV are associated with higher prices. C1 [Gillingham, Kenneth] Yale Univ, Sch Forestry & Environm Studies, Sch Management, Dept Econ, 195 Prospect St, New Haven, CT 06510 USA. [Deng, Hao] Yale Univ, 195 Prospect St, New Haven, CT 06510 USA. [Wiser, Ryan; Darghouth, Naim Richard; Barbose, Galen] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Nemet, Gregory] Univ Wisconsin, 1225 Observ Dr, Madison, WI 53706 USA. [Rai, Varun] Univ Texas Austin, 2315 Red River St,SRH 3-256, Austin, TX 78712 USA. [Dong, Changgui] Natl Renewable Energy Lab, 15013 Denver W Pkwy, Golden, CO 80401 USA. RP Gillingham, K (reprint author), Yale Univ, Sch Forestry & Environm Studies, Sch Management, Dept Econ, 195 Prospect St, New Haven, CT 06510 USA. EM kenneth.gillingham@yale.edu FU Office of Energy Efficiency and Renewable Energy (Solar Energy Technologies Office) of the U.S. DOE [DE-AC02-05CH11231] FX We thank Tsvetan Tsvetanov, Hilary Staver, Paige Weber, and Divita Bhandari for research assistance. For reviewing earlier versions of this paper, we thank David Arfin, Justin Baca, James Tong, Carolyn Davidson, Gireesh Shrimali, Chris Ercoli, Valerie Thomas, the editor Jim Smith, and two anonymous referees. Finally, for their support of this work, we thank Elaine Ulrich, Christina Nichols, Joshua Huneycutt and Minh Le of the U.S. Department of Energy (DOE). This work was supported by the Office of Energy Efficiency and Renewable Energy (Solar Energy Technologies Office) of the U.S. DOE under Contract No. DE-AC02-05CH11231. All errors are the sole responsibility of the authors. NR 49 TC 3 Z9 3 U1 11 U2 20 PU INT ASSOC ENERGY ECONOMICS PI CLEVELAND PA 28790 CHAGRIN BLVD, STE 210, CLEVELAND, OH 44122 USA SN 0195-6574 EI 1944-9089 J9 ENERG J JI Energy J. PD JUL PY 2016 VL 37 IS 3 BP 231 EP 250 DI 10.5547/01956574.37.3.kgil PG 20 WC Economics; Energy & Fuels; Environmental Studies SC Business & Economics; Energy & Fuels; Environmental Sciences & Ecology GA DP8OL UT WOS:000378757400009 ER PT J AU Weir, SM Flynn, RW Scott, DE Yu, SY Lance, SL AF Weir, Scott M. Flynn, R. Wesley Scott, David E. Yu, Shuangying Lance, Stacey L. TI Environmental levels of Zn do not protect embryos from Cu toxicity in three species of amphibians SO ENVIRONMENTAL POLLUTION LA English DT Article DE Metals; Anurans; Mixtures; Maternal effects; Populations ID COAL-COMBUSTION WASTES; FLOW CONSTRUCTED WETLAND; CHRONIC COPPER EXPOSURE; TOADS BUFO-TERRESTRIS; SOUTHERN TOADS; HEAVY-METALS; RAINBOW TROUT; ZINC; MIXTURES; FROG AB Contaminants often occur as mixtures in the environment, but investigations into toxicity usually employ a single chemical. Metal contaminant mixtures from anthropogenic activities such as mining and coal combustion energy are widespread, yet relatively little research has been performed on effects of these mixtures on amphibians. Considering that amphibians tend to be highly sensitive to copper (Cu) and that metal contaminants often occur as mixtures in the environment, it is important to understand the interactive effects that may result from multiple metals. Interactive effects of Cu and zinc (Zn) on amphibians have been reported as antagonistic and, conversely, synergistic. The goal of our study was to investigate the role of Zn in Cu toxicity to amphibians throughout the embryonic developmental period. We also considered maternal effects and population differences by collecting multiple egg masses from contaminated and reference areas for use in four experiments across three species. We performed acute toxicity experiments with Cu concentrations that cause toxicity (10-200 mu g/L) in the absence of other contaminants combined with sublethal concentrations of Zn (100 and 1000 mu g/L). Our results suggest very few effects of Zn on Cu toxicity at these concentrations of Zn. As has been previously reported, we found that maternal effects and population history had significant influence on Cu toxicity. The explanation for a lack of interaction between Cu and Zn in this experiment is unknown but may be due to the use of sublethal Zn concentrations when previous experiments have used Zn concentrations associated with acute toxicity. Understanding the inconsistency of amphibian Cu/Zn mixture toxicity studies is an important research direction in order to create generalities that can be used to understand risk of contaminant mixtures in the environment. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Weir, Scott M.; Flynn, R. Wesley; Scott, David E.; Yu, Shuangying; Lance, Stacey L.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29803 USA. [Weir, Scott M.] Queens Univ Charlotte, Dept Biol, Charlotte, NC 28274 USA. [Yu, Shuangying] Queens Univ Charlotte, Chem & Environm Sci Dept, Charlotte, NC 28274 USA. RP Lance, SL (reprint author), Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29803 USA. EM weirs@queens.edu; yus@queens.edu; lance@srel.uga.edu OI Lance, Stacey/0000-0003-2686-1733 FU U.S. Department of Energy [DE-FC09-07SR22506]; DOE National Nuclear Security Administration [1021RR267432] FX We would like to thank D. Soteropoulos for field and laboratory assistance. This research was partially supported by U.S. Department of Energy under Award Number DE-FC09-07SR22506 to the University of Georgia Research Foundation, and was also made possible by the status of the SRS as a National Environmental Research Park (NERP), as well as the protection of research wetlands in the SRS Set-Aside Program. Project funding was provided by the DOE National Nuclear Security Administration (Grant no: 1021RR267432). Animals were collected under SCDNR permit #G-09-03 following IACUC procedures (AUP A2009 10-175-Y2-A0) from the University of Georgia. We thank two anonymous reviewers for helpful comments that improved the manuscript. NR 56 TC 0 Z9 0 U1 6 U2 13 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0269-7491 EI 1873-6424 J9 ENVIRON POLLUT JI Environ. Pollut. PD JUL PY 2016 VL 214 BP 161 EP 168 DI 10.1016/j.envpol.2016.04.005 PG 8 WC Environmental Sciences SC Environmental Sciences & Ecology GA DP4EI UT WOS:000378448600018 PM 27086071 ER PT J AU Yang, ZM Fang, W Lu, X Sheng, GP Graham, DE Liang, LY Wullschleger, SD Gu, BH AF Yang, Ziming Fang, Wei Lu, Xia Sheng, Guo-Ping Graham, David E. Liang, Liyuan Wullschleger, Stan D. Gu, Baohua TI Warming increases methylmercury production in an Arctic soil SO ENVIRONMENTAL POLLUTION LA English DT Article DE Permafrost; Soil organic carbon; Mercury; Methylmercury production; Climate change ID DISSOLVED ORGANIC-MATTER; MERCURY METHYLATION; CLIMATE-CHANGE; ANAEROBIC-BACTERIA; MARINE-SEDIMENTS; BIOAVAILABILITY; DEMETHYLATION; CARBON; AVAILABILITY; TEMPERATURE AB Rapid temperature rise in Arctic permafrost impacts not only the degradation of stored soil organic carbon (SOC) and climate feedback, but also the production and bioaccumulation of methylmercury (MeHg) toxin that can endanger humans, as well as wildlife in terrestrial and aquatic ecosystems. Currently little is known concerning the effects of rapid permafrost thaw on microbial methylation and how SOC degradation is coupled to MeHg biosynthesis. Here we describe the effects of warming on MeHg production in an Arctic soil during an 8-month anoxic incubation experiment. Net MeHg production increased >10 fold in both organic- and mineral-rich soil layers at warmer (8 degrees C) than colder (-2 degrees C) temperatures. The type and availability of labile SOC, such as reducing sugars and ethanol, were particularly important in fueling the rapid initial biosynthesis of MeHg. Freshly amended mercury was more readily methylated than preexisting mercury in the soil. Additionally, positive correlations between mercury methylation and methane and ferrous ion production indicate linkages between SOC degradation and MeHg production. These results show that climate warming and permafrost thaw could potentially enhance MeHg production by an order of magnitude, impacting Arctic terrestrial and aquatic ecosystems by increased exposure to mercury through bioaccumulation and biomagnification in the food web. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Yang, Ziming; Fang, Wei; Lu, Xia; Liang, Liyuan; Wullschleger, Stan D.; Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. [Fang, Wei; Sheng, Guo-Ping] Univ Sci & Technol China, Dept Chem, CAS Key Lab Urban Pollutant Convers, Hefei 230026, Peoples R China. [Graham, David E.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. [Liang, Liyuan] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN USA. [Wullschleger, Stan D.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN USA. RP Gu, BH (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. EM gub1@ornl.gov RI Graham, David/F-8578-2010; Wullschleger, Stan/B-8297-2012; OI Graham, David/0000-0001-8968-7344; Wullschleger, Stan/0000-0002-9869-0446; Gu, Baohua/0000-0002-7299-2956 FU Office of Biological and Environmental Research in the DOE Office of Science, through the Next Generation Ecosystem Experiments (NGEE-Arctic) project; Office of Biological and Environmental Research in the DOE Office of Science, through Mercury Science Focus Area project; Chinese Scholarship Council (CSC) of China; Laboratory Directed R&D fund at Oak Ridge National Laboratory (ORNL) FX We thank Xiangping Yin, Todd Olsen, Hui Lin, and Yurong Liu for technical assistance and chemical analysis. This research was supported by the Office of Biological and Environmental Research in the DOE Office of Science, through the Next Generation Ecosystem Experiments (NGEE-Arctic) project and the Mercury Science Focus Area project. WF and XL are supported in part by the Chinese Scholarship Council (CSC) of China, and LL by the Laboratory Directed R&D fund at Oak Ridge National Laboratory (ORNL). All data are available in an online data repository (NGEE-Arctic Data Portal, DOI:10.5440/1235032). NR 42 TC 1 Z9 1 U1 27 U2 43 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0269-7491 EI 1873-6424 J9 ENVIRON POLLUT JI Environ. Pollut. PD JUL PY 2016 VL 214 BP 504 EP 509 DI 10.1016/j.envpol.2016.04.069 PG 6 WC Environmental Sciences SC Environmental Sciences & Ecology GA DP4EI UT WOS:000378448600057 PM 27131808 ER PT J AU Tuberville, TD Scott, DE Metts, BS Finger, JW Hamilton, MT AF Tuberville, Tracey D. Scott, David E. Metts, Brian S. Finger, John W., Jr. Hamilton, Matthew T. TI Hepatic and renal trace element concentrations in American alligators (Alligator mississippiensis) following chronic dietary exposure to coal fly ash contaminated prey SO ENVIRONMENTAL POLLUTION LA English DT Article DE Crocodilian; Bioaccumulation; Chronic dietary exposure; Growth; Coal combustion waste ID CROCODILES CROCODYLUS-POROSUS; SNAKES NERODIA-FASCIATA; BURNING POWER-PLANT; MATERNAL TRANSFER; SELENIUM CONCENTRATIONS; SOUTHERN TOADS; HEAVY-METAL; FOOD-CHAIN; MERCURY CONCENTRATIONS; COMBUSTION WASTES AB Little is known about the propensity of crocodilians to bioaccumulate trace elements as a result of chronic dietary exposure. We exposed 36 juvenile alligators (Alligator mississippiensis) to one of four dietary treatments that varied in the relative frequency of meals containing prey from coal combustion waste (CCW)-contaminated habitats vs. prey from uncontaminated sites, and evaluated tissue residues and growth rates after 12 mo and 25 mo of exposure. Hepatic and renal concentrations of arsenic (As), cadmium (Cd) and selenium (Se) varied significantly among dietary treatment groups in a dose dependent manner and were higher in kidneys than in livers. Exposure period did not affect Se or As levels but Cd levels were significantly higher after 25 mo than 12 mo of exposure. Kidney As and Se levels were negatively correlated with body size but neither growth rates nor body condition varied significantly among dietary treatment groups. Our study is among the first to experimentally examine bio-accumulation of trace element contaminants in crocodilians as a result of chronic dietary exposure. A combination of field surveys and laboratory experiments will be required to understand the effects of different exposure scenarios on tissue residues, and ultimately link these concentrations with effects on individual health. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Tuberville, Tracey D.; Scott, David E.; Metts, Brian S.; Finger, John W., Jr.; Hamilton, Matthew T.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. [Finger, John W., Jr.] Univ Georgia, Dept Environm Hlth Sci, Athens, GA 30602 USA. [Hamilton, Matthew T.] Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA. [Metts, Brian S.] Grovetown Middle Sch, Grovetown, GA 30813 USA. [Finger, John W., Jr.] Auburn Univ, Dept Biol Sci, Auburn, AL 36849 USA. RP Tuberville, TD (reprint author), Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. EM tubervil@uga.edu OI Finger, John/0000-0003-0661-7821 FU Savannah River Nuclear Solutions-Area Completions Projects; Department of Energy [DE-FC09-07SR22506] FX We would like to thank Ruth Elsey and her staff at the Rockefeller Wildlife Refuge in Louisiana for providing the alligators used in the study and Andrew Grosse and Brett DeGregorio for transporting them to SREL. We thank Brett DeGregorio for setting up the tanks, Caitlin Kupar for assistance with prey collection and animal husbandry, Bess Harris for help with food preparation and animal husbandry, Nick Bossenbroek for help with tissue sample preparation, and Stacey Lance and Travis Glenn for assistance with dissections. Two anonymous reviewers provided comments that improved earlier versions of this manuscript. All procedures were approved by the University of Georgia's Institutional Animal Care and Use Committee (AUP #A2010 11-561-Y1-A0). We obtained permission to transport alligators from Louisiana Department of Wildlife and Fisheries and from South Carolina Department of Natural Resources. Prey fish were collected under SC collecting permit #F-12-12. Funding was provided by Savannah River Nuclear Solutions-Area Completions Projects and by Department of Energy under Award No. DE-FC09-07SR22506 to the University of Georgia Research Foundation. NR 88 TC 2 Z9 2 U1 8 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0269-7491 EI 1873-6424 J9 ENVIRON POLLUT JI Environ. Pollut. PD JUL PY 2016 VL 214 BP 680 EP 689 DI 10.1016/j.envpol.2016.04.003 PG 10 WC Environmental Sciences SC Environmental Sciences & Ecology GA DP4EI UT WOS:000378448600077 PM 27149145 ER PT J AU McKenney, JR Sato, N Melnitchouk, W Ji, CR AF McKenney, J. R. Sato, Nobuo Melnitchouk, W. Ji, Chueng-Ryong TI SU(2) Flavor Asymmetry of the Proton Sea in Chiral Effective Theory SO FEW-BODY SYSTEMS LA English DT Article; Proceedings Paper CT Light Cone Meeting CY SEP 21-26, 2015 CL Natl Labs Inst Nazl Fis Nucl, Frascati, ITALY SP Int Light Cone Advisory Comm HO Natl Labs Inst Nazl Fis Nucl ID LEADING NEUTRON-PRODUCTION; DEEP-INELASTIC SCATTERING; DRELL-YAN; NUCLEON; DISTRIBUTIONS; HERA; BREAKING; TUNGSTEN AB We refine the computation of the dI" - A << flavor asymmetry in the proton sea with a complementary effort to reveal the dynamics of pion exchange in high-energy processes. In particular, we discuss the efficacy of pion exchange models to simultaneously describe leading neutron electroproduction at HERA along with the dI" - A << flavor asymmetry in the proton. A detailed analysis of the ZEUS and H1 data, when combined with constraints on the pion flux from Drell-Yan data, allows regions of applicability of one-pion exchange to be delineated. Based on the fit results, we also address a possible estimate for leading proton structure functions in upcoming tagged deep-inelastic scattering experiments at Jefferson Lab on the deuteron with forward protons. C1 [McKenney, J. R.] Univ N Carolina, Chapel Hill, NC 27599 USA. [Sato, Nobuo; Melnitchouk, W.] Jefferson Lab, Newport News, VA 23606 USA. [Ji, Chueng-Ryong] N Carolina State Univ, Raleigh, NC 27695 USA. RP Ji, CR (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA. EM crji@ncsu.edu NR 42 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 EI 1432-5411 J9 FEW-BODY SYST JI Few-Body Syst. PD JUL PY 2016 VL 57 IS 7 BP 593 EP 599 DI 10.1007/s00601-016-1047-7 PG 7 WC Physics, Multidisciplinary SC Physics GA DP8YQ UT WOS:000378784300017 ER PT J AU Estiarte, M Vicca, S Penuelas, J Bahn, M Beier, C Emmett, BA Fay, PA Hanson, PJ Hasibeder, R Kigel, J Kroel-Dulay, G Larsen, KS Lellei-Kovacs, E Limousin, JM Ogaya, R Ourcival, JM Reinsch, S Sala, OE Schmidt, IK Sternberg, M Tielborger, K Tietema, A Janssens, IA AF Estiarte, Marc Vicca, Sara Penuelas, Josep Bahn, Michael Beier, Claus Emmett, Bridget A. Fay, Philip A. Hanson, Paul J. Hasibeder, Roland Kigel, Jaime Kroel-Dulay, Gyorgy Larsen, Klaus Steenberg Lellei-Kovacs, Eszter Limousin, Jean-Marc Ogaya, Roma Ourcival, Jean-Marc Reinsch, Sabine Sala, Osvaldo E. Schmidt, Inger Kappel Sternberg, Marcelo Tielboerger, Katja Tietema, Albert Janssens, Ivan A. TI Few multiyear precipitation-reduction experiments find ashift in the productivity-precipitation relationship SO GLOBAL CHANGE BIOLOGY LA English DT Article DE aboveground productivity; drought; precipitation; precipitation-reduction experiments; spatial fit; temporal fit ID CARBON-CYCLE MODELS; HOLM OAK FOREST; MANIPULATION EXPERIMENTS; CLIMATE-CHANGE; USE EFFICIENCY; TREE GROWTH; DROUGHT; VARIABILITY; GRASSLAND; MORTALITY AB Well-defined productivity-precipitation relationships of ecosystems are needed as benchmarks for the validation of land models used for future projections. The productivity-precipitation relationship may be studied in two ways: the spatial approach relates differences in productivity to those in precipitation among sites along a precipitation gradient (the spatial fit, with a steeper slope); the temporal approach relates interannual productivity changes to variation in precipitation within sites (the temporal fits, with flatter slopes). Precipitation-reduction experiments in natural ecosystems represent a complement to the fits, because they can reduce precipitation below the natural range and are thus well suited to study potential effects of climate drying. Here, we analyse the effects of dry treatments in eleven multiyear precipitation-manipulation experiments, focusing on changes in the temporal fit. We expected that structural changes in the dry treatments would occur in some experiments, thereby reducing the intercept of the temporal fit and displacing the productivity-precipitation relationship downward the spatial fit. The majority of experiments (72%) showed that dry treatments did not alter the temporal fit. This implies that current temporal fits are to be preferred over the spatial fit to benchmark land-model projections of productivity under future climate within the precipitation ranges covered by the experiments. Moreover, in two experiments, the intercept of the temporal fit unexpectedly increased due to mechanisms that reduced either water loss or nutrient loss. The expected decrease of the intercept was observed in only one experiment, and only when distinguishing between the late and the early phases of the experiment. This implies that we currently do not know at which precipitation-reduction level or at which experimental duration structural changes will start to alter ecosystem productivity. Our study highlights the need for experiments with multiple, including more extreme, dry treatments, to identify the precipitation boundaries within which the current temporal fits remain valid. C1 [Estiarte, Marc; Penuelas, Josep] CSIC, Global Ecol Unit CREAF CSIC UAB, E-08193 Cerdanyola Del Valles, Catalonia, Spain. [Estiarte, Marc; Penuelas, Josep; Ogaya, Roma] CREAF, E-08193 Barcelona, Catalonia, Spain. [Vicca, Sara; Janssens, Ivan A.] Univ Antwerp, Dept Biol, B-2610 Antwerp, Belgium. [Bahn, Michael; Hasibeder, Roland] Univ Innsbruck, Inst Ecol, Sternwarte Str 15, A-6020 Innsbruck, Austria. [Beier, Claus; Larsen, Klaus Steenberg; Schmidt, Inger Kappel] Univ Copenhagen, Dept Geosci & Nat Resource Management, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark. [Beier, Claus; Reinsch, Sabine] NIVA, Ctr Catchments & Urban Water Res, NO-0349 Oslo, Norway. [Emmett, Bridget A.] Environm Ctr Wales, Ctr Ecol & Hydrol, Bangor LL57 2UW, Gwynedd, Wales. [Fay, Philip A.] USDA ARS, 808 E Blackland Rd, Temple, TX 76502 USA. [Hanson, Paul J.] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA. [Kigel, Jaime] Hebrew Univ Jerusalem, Inst Plant Sci & Genet, Robert H Smith Fac Agr Food & Environm, IL-76100 Rehovot, Israel. [Kroel-Dulay, Gyorgy; Lellei-Kovacs, Eszter] MTA Ctr Ecol Res, Inst Ecol & Bot, H-2163 Vacratot, Hungary. [Limousin, Jean-Marc; Ourcival, Jean-Marc] Univ Montpellier 3, Univ Montpellier, CNRS, CEFE,UMR5175,EPHE, 1919 Route Mende, F-34293 Montpellier 5, France. [Sala, Osvaldo E.] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA. [Sala, Osvaldo E.] Arizona State Univ, Sch Sustainabil, Tempe, AZ 85287 USA. [Sternberg, Marcelo] Tel Aviv Univ, Fac Life Sci, Dept Mol Biol & Ecol Plants, IL-69978 Tel Aviv, Israel. [Tielboerger, Katja] Univ Tubingen, Plant Ecol Grp, Dept Biol, Morgenstelle 3, D-72076 Tubingen, Germany. [Tietema, Albert] Univ Amsterdam, Inst Biodivers & Ecosyst Dynam, POB 94240, NL-1090 GE Amsterdam, Netherlands. RP Estiarte, M (reprint author), CSIC, Global Ecol Unit CREAF CSIC UAB, E-08193 Cerdanyola Del Valles, Catalonia, Spain.; Estiarte, M (reprint author), CREAF, E-08193 Barcelona, Catalonia, Spain. EM m.estiarte@creaf.uab.cat RI Hanson, Paul J./D-8069-2011; Vicca, Sara/I-3637-2012; Bahn, Michael/I-3536-2013; Emmett, Bridget/D-6199-2011; Janssens, Ivan/P-1331-2014; Estiarte, Marc/G-2001-2016; OI Hanson, Paul J./0000-0001-7293-3561; Vicca, Sara/0000-0001-9812-5837; Bahn, Michael/0000-0001-7482-9776; Emmett, Bridget/0000-0002-2713-4389; Janssens, Ivan/0000-0002-5705-1787; Estiarte, Marc/0000-0003-1176-8480; Larsen, Klaus Steenberg/0000-0002-1421-6182; Penuelas, Josep/0000-0002-7215-0150 FU European Community [FP7-ENV-2008-1-226701]; ESF-network CLIMMANI; COST action [5ES1308]; Spanish Government [CGL2013-48074-P]; Catalan Government [SGR 2014-274]; European Research Council [ERC-2013-SyG 610028-IMBALANCE-P]; US National Science Foundation [DEB-1235828, DEB 1354732]; USDA-NIFA [2010-65615-20632]; Israel Ministry of Science and Technology (MOST); German Ministry of Science and Education (BMBF); FP7 (INCREASE) programmes [227628]; Hungarian Scientific Research Fund [OTKA K112576, PD 115637]; Austrian Science Fund-FWF [P22214-B17]; ERA-Net BiodivERsA project REGARDS [FWF-I-1056]; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research FX This work emerged from the Carbo-Extreme project funded by the European Community's 7th Framework Programme under grant agreement FP7-ENV-2008-1-226701 and has been supported by the ESF-network CLIMMANI and the COST action 5ES1308. ME, JP and RO were supported by the Spanish Government grants CGL2013-48074-P, the Catalan Government grant SGR 2014-274 and the European Research Council grant ERC-2013-SyG 610028-IMBALANCE-P. SV is a postdoctoral fellow of the Research Foundation - Flanders (FWO). OES acknowledges support from the US National Science Foundation DEB-1235828 and DEB 1354732. PAF acknowledges support from USDA-NIFA (2010-65615-20632). MS and JK were supported by the Israel Ministry of Science and Technology (MOST). Research by KT, MS and JK was part of the GLOWA Jordan River project, funded by the German Ministry of Science and Education (BMBF). GK-D and EL-K were supported by the FP7 (INCREASE: 227628) programmes, and by the Hungarian Scientific Research Fund (OTKA K112576 and PD 115637). MB and RH were supported by the Austrian Science Fund-FWF grant P22214-B17 and the ERA-Net BiodivERsA project REGARDS (FWF-I-1056). PJH was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research. We thank Roberto Molowny for his advice on data treatment. AT thanks Joke Westerveld for assistance with the experiment. NR 46 TC 3 Z9 3 U1 29 U2 54 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1354-1013 EI 1365-2486 J9 GLOBAL CHANGE BIOL JI Glob. Change Biol. PD JUL PY 2016 VL 22 IS 7 BP 2570 EP 2581 DI 10.1111/gcb.13269 PG 12 WC Biodiversity Conservation; Ecology; Environmental Sciences SC Biodiversity & Conservation; Environmental Sciences & Ecology GA DP8BD UT WOS:000378722000023 PM 26946322 ER PT J AU Venkatakrishnan, SV Farmand, M Yu, YS Majidi, H van Benthem, K Marchesini, S Shapiro, DA Hexemer, A AF Venkatakrishnan, Singanallur V. Farmand, Maryam Yu, Young-Sang Majidi, Hasti van Benthem, Klaus Marchesini, Stefano Shapiro, David A. Hexemer, Alexander TI Robust X-Ray Phase Ptycho-Tomography SO IEEE SIGNAL PROCESSING LETTERS LA English DT Article DE Computed tomography; iterative methods; ptychography; X-ray tomography ID COMPUTED-TOMOGRAPHY; RECONSTRUCTION; OPTIMIZATION; ALGORITHMS; RESOLUTION; CT AB Synchrotron-based soft X-ray ptychography has enabled the reconstruction of both the phase and attenuation projections of samples relevant to the physical and biological sciences. The phase projection images typically have higher fidelity and hence are used for tomographic reconstruction. In practice, three-dimensional tomographic reconstruction can be challenging because the measurements may have outliers, a fluctuating background and may be restricted to a limited angular range of sample rotations. Thus, conventional reconstruction algorithms such as filtered back projection can result in reconstructions with strong artifacts. In this paper, we present a robust model-based iterative reconstruction algorithm for X-ray ptychography-based phase tomography. Our method casts the reconstruction as a regularized inverse problem, involving a novel data fitting term that accounts for noise, the fluctuating background as well as outliers, combined with an image model term that enforces regularity on the volume to be reconstructed. We use a majorization-minimization strategy to find a minimum of the formulated cost function. Reconstructions on a simulated as well as a real dataset show that it is possible to acquire high-quality phase reconstructions compared to the typically used filtered-back projection algorithm as well as conventional regularized inversion approaches. C1 [Venkatakrishnan, Singanallur V.; Farmand, Maryam; Yu, Young-Sang; Marchesini, Stefano; Shapiro, David A.; Hexemer, Alexander] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Yu, Young-Sang] Univ Illinois, Dept Chem, Chicago, IL 60607 USA. [Majidi, Hasti; van Benthem, Klaus] Univ Calif Davis, Dept Mat Sci & Engn, Davis, CA 95616 USA. RP Venkatakrishnan, SV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. EM svvenkatakrishnan@gmail.com; mfarmand@lbl.gov; ysyu@lbl.gov; hmajidi@ucdavis.edu; benthem@ucdavis.edu; SMarchesini@lbl.gov; dashapiro@lbl.gov; ahexemer@lbl.gov FU Office of Science, Office of Basic Energy Sciences, the U.S. Department of Energy [DE-AC02-05CH11231]; Center for Applied Mathematics for Energy Research Applications, a joint ASCR-BES within the Office of Science, U.S. Department of Energy [DOE-DE-AC03-76SF00098]; DOE; Army Research Office [W911NF1210491] FX The Advanced Light Source, Berkeley, CA, USA was supported by the Director, Office of Science, Office of Basic Energy Sciences, the U.S. Department of Energy under Contract DE-AC02-05CH11231. This work was supported in part by the Center for Applied Mathematics for Energy Research Applications, a joint ASCR-BES funded project within the Office of Science, U.S. Department of Energy, under Contract DOE-DE-AC03-76SF00098. The work of S.V. Venkatakrishnan and A. Hexemer was supported by A. H's DOE Early Career Award. The work of H. Majidi and K. van Benthem was supported by the Army Research Office under Grant #W911NF1210491 (program managers: Dr. Suveen Mathaudu and Dr. David Stepp). The associate editor coordinating the review of this manuscript and approving it for publication was Charles Kervrann. NR 24 TC 0 Z9 0 U1 8 U2 12 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1070-9908 EI 1558-2361 J9 IEEE SIGNAL PROC LET JI IEEE Signal Process. Lett. PD JUL PY 2016 VL 23 IS 7 BP 944 EP 948 DI 10.1109/LSP.2016.2562504 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA DP5JJ UT WOS:000378531800005 ER PT J AU Bendall, ML Stevens, SLR Chan, LK Malfatti, S Schwientek, P Tremblay, J Schackwitz, W Martin, J Pati, A Bushnell, B Froula, J Kang, DW Tringe, SG Bertilsson, S Moran, MA Shade, A Newton, RJ McMahon, KD Malmstrom, RR AF Bendall, Matthew L. Stevens, Sarah L. R. Chan, Leong-Keat Malfatti, Stephanie Schwientek, Patrick Tremblay, Julien Schackwitz, Wendy Martin, Joel Pati, Amrita Bushnell, Brian Froula, Jeff Kang, Dongwan Tringe, Susannah G. Bertilsson, Stefan Moran, Mary A. Shade, Ashley Newton, Ryan J. McMahon, Katherine D. Malmstrom, Rex R. TI Genome-wide selective sweeps and gene-specific sweeps in natural bacterial populations SO ISME JOURNAL LA English DT Article ID DNA-SEQUENCING DATA; RIBOSOMAL-RNA GENE; PROCHLOROCOCCUS ECOTYPES; MICROBIAL GENOMES; ESCHERICHIA-COLI; PHYLOGENETIC ANALYSIS; DIVERSITY; RECOMBINATION; METAGENOMES; DIVERGENCE AB Multiple models describe the formation and evolution of distinct microbial phylogenetic groups. These evolutionary models make different predictions regarding how adaptive alleles spread through populations and how genetic diversity is maintained. Processes predicted by competing evolutionary models, for example, genome-wide selective sweeps vs gene-specific sweeps, could be captured in natural populations using time-series metagenomics if the approach were applied over a sufficiently long time frame. Direct observations of either process would help resolve how distinct microbial groups evolve. Here, from a 9-year metagenomic study of a freshwater lake (2005-2013), we explore changes in single-nucleotide polymorphism (SNP) frequencies and patterns of gene gain and loss in 30 bacterial populations. SNP analyses revealed substantial genetic heterogeneity within these populations, although the degree of heterogeneity varied by 41000-fold among populations. SNP allele frequencies also changed dramatically over time within some populations. Interestingly, nearly all SNP variants were slowly purged over several years from one population of green sulfur bacteria, while at the same time multiple genes either swept through or were lost from this population. These patterns were consistent with a genome-wide selective sweep in progress, a process predicted by the 'ecotype model' of speciation but not previously observed in nature. In contrast, other populations contained large, SNP-free genomic regions that appear to have swept independently through the populations prior to the study without purging diversity elsewhere in the genome. Evidence for both genome-wide and gene-specific sweeps suggests that different models of bacterial speciation may apply to different populations coexisting in the same environment. C1 [Bendall, Matthew L.; Chan, Leong-Keat; Malfatti, Stephanie; Schwientek, Patrick; Tremblay, Julien; Schackwitz, Wendy; Martin, Joel; Pati, Amrita; Bushnell, Brian; Froula, Jeff; Kang, Dongwan; Tringe, Susannah G.; Malmstrom, Rex R.] DOE Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA. [Stevens, Sarah L. R.; McMahon, Katherine D.] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA. [Bertilsson, Stefan] Uppsala Univ, Dept Ecol & Genet, Limnol & Sci Life Lab, Uppsala, Sweden. [Moran, Mary A.] Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA. [Shade, Ashley] Michigan State Univ, Microbiol & Mol Genet, E Lansing, MI 48824 USA. [Newton, Ryan J.] Univ Wisconsin, Sch Freshwater Sci, Milwaukee, WI 53201 USA. [McMahon, Katherine D.] Univ Wisconsin, Civil & Environm Engn, Madison, WI USA. RP Malmstrom, RR (reprint author), DOE Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA. EM rrmalmstrom@lbl.gov OI Moran, Mary Ann/0000-0002-0702-8167; McMahon, Katherine D./0000-0002-7038-026X; Shade, Ashley/0000-0002-7189-3067 FU DOE Office of Science [DE-AC02-05CH11231]; United States National Science Foundation Microbial Observatories program [MCB-0702395]; Long Term Ecological Research program [NTL-LTER DEB-0822700]; INSPIRE award [DEB- 1344254]; CAREER award [CBET-0738309]; National Institute of Food and Agriculture, United States Department of Agriculture [WIS01516] FX We thank JF Cheng, T Woyke, C Rinke, T Glavina del Rio, M Huntemann, N Ivanova, B Oyserman, B Foster and B Crary for their assistance with data analyses. We also thank J Shapiro and R Stepanauskus for their comments on an early draft of the manuscript. Work conducted by the US Department of Energy Joint Genome Institute was supported by the DOE Office of Science (DE-AC02-05CH11231). KDM acknowledges funding from the United States National Science Foundation Microbial Observatories program (MCB-0702395), the Long Term Ecological Research program (NTL-LTER DEB-0822700), an INSPIRE award (DEB- 1344254) and a CAREER award (CBET-0738309). This material is based upon work supported by the National Institute of Food and Agriculture, United States Department of Agriculture, under ID number WIS01516 (to KDM). NR 61 TC 9 Z9 9 U1 8 U2 24 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1751-7362 EI 1751-7370 J9 ISME J JI ISME J. PD JUL PY 2016 VL 10 IS 7 BP 1589 EP 1601 DI 10.1038/ismej.2015.241 PG 13 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA DP2BC UT WOS:000378292100005 PM 26744812 ER PT J AU Weiss, S Van Treuren, W Lozupone, C Faust, K Friedman, J Deng, Y Xia, LC Xu, ZZ Ursell, L Alm, EJ Birmingham, A Cram, JA Fuhrman, JA Raes, J Sun, FZ Zhou, JZ Knight, R AF Weiss, Sophie Van Treuren, Will Lozupone, Catherine Faust, Karoline Friedman, Jonathan Deng, Ye Xia, Li Charlie Xu, Zhenjiang Zech Ursell, Luke Alm, Eric J. Birmingham, Amanda Cram, Jacob A. Fuhrman, Jed A. Raes, Jeroen Sun, Fengzhu Zhou, Jizhong Knight, Rob TI Correlation detection strategies in microbial data sets vary widely in sensitivity and precision SO ISME JOURNAL LA English DT Article ID HUMAN GUT MICROBIOME; LOCAL SIMILARITY ANALYSIS; STATISTICAL SIGNIFICANCE; DISEASE; TIME; ASSOCIATIONS; COMMUNITIES; INFECTION; BACTERIAL; NETWORKS AB Disruption of healthy microbial communities has been linked to numerous diseases, yet microbial interactions are little understood. This is due in part to the large number of bacteria, and the much larger number of interactions (easily in the millions), making experimental investigation very difficult at best and necessitating the nascent field of computational exploration through microbial correlation networks. We benchmark the performance of eight correlation techniques on simulated and real data in response to challenges specific to microbiome studies: fractional sampling of ribosomal RNA sequences, uneven sampling depths, rare microbes and a high proportion of zero counts. Also tested is the ability to distinguish signals from noise, and detect a range of ecological and time-series relationships. Finally, we provide specific recommendations for correlation technique usage. Although some methods perform better than others, there is still considerable need for improvement in current techniques. C1 [Weiss, Sophie] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA. [Van Treuren, Will] Univ Colorado, BioFrontiers Inst, Boulder, CO 80309 USA. [Lozupone, Catherine] Univ Colorado, Dept Med, Denver, CO USA. [Faust, Karoline; Raes, Jeroen] Rega Inst KU Leuven, Dept Microbiol & Immunol, Leuven, Belgium. [Faust, Karoline; Raes, Jeroen] VIB, VIB Ctr Biol Dis, Leuven, Belgium. [Faust, Karoline; Raes, Jeroen] Vrije Univ Brussel, Lab Microbiol, Brussels, Belgium. [Friedman, Jonathan] MIT, Dept Phys, Cambridge, MA 02139 USA. [Deng, Ye] Chinese Acad Sci, CAS Key Lab Environm Biotechnol, Beijing, Peoples R China. [Deng, Ye; Zhou, Jizhong] Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA. [Xia, Li Charlie] Stanford Univ, Sch Med, Dept Med, Div Oncol, Stanford, CA 94305 USA. [Xia, Li Charlie] Univ Penn, Wharton Sch, Dept Stat, Philadelphia, PA 19104 USA. [Xu, Zhenjiang Zech; Knight, Rob] Univ Calif San Diego, Dept Pediat, La Jolla, CA 92093 USA. [Ursell, Luke] Biota Technol Inc, Denver, CO USA. [Alm, Eric J.] MIT, Dept Biol Engn, Ctr Microbiome Informat & Therapeut, Cambridge, MA USA. [Birmingham, Amanda] Univ Calif San Diego, Dept Med, Ctr Computat Biol & Bioinformat, La Jolla, CA 92093 USA. [Cram, Jacob A.; Fuhrman, Jed A.] Univ So Calif, Dept Biol Sci, Los Angeles, CA USA. [Sun, Fengzhu] Univ So Calif, Mol & Computat Biol Program, Los Angeles, CA USA. [Zhou, Jizhong] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Earth Sci Div, Berkeley, CA 94720 USA. [Zhou, Jizhong] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China. [Knight, Rob] Univ Calif San Diego, Dept Comp Sci & Engn, 9500 Gilman Dr, La Jolla, CA 92093 USA. RP Knight, R (reprint author), Univ Calif San Diego, Dept Comp Sci & Engn, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM robknight@ucsd.edu RI Sun, Fengzhu /G-4373-2010; Xia, Charlie/H-4755-2012; OI Xia, Charlie/0000-0003-0868-1923; ?, ?/0000-0002-7584-0632; Faust, Karoline/0000-0001-7129-2803 FU National Human Genome Research Institute Grant [3 R01 HG004872-03S2]; National Institute of Health Grant [5 U01 HG004866-04]; Gordon and Betty Moore Foundation Grant [GBMF3779]; NSF Grant [1136818]; Howard Hughes Medical Institute FX WVT and SJW were supported by the National Human Genome Research Institute Grant# 3 R01 HG004872-03S2, and the National Institute of Health Grant# 5 U01 HG004866-04. JAF and JAC were supported by the Gordon and Betty Moore Foundation Grant# GBMF3779 and NSF Grant# 1136818. This work was supported in part by the Howard Hughes Medical Institute (RK was an HHMI Early Career Scientist). The National Human Genome Research Institute Grant# 3 R01 HG004872-03S2, the National Institute of Health Grant# 5 U01 HG004866-04, the Gordon and Betty Moore Foundation Grant# GBMF3779, NSF Grant# 1136818 and the Howard Hughes Medical Institute. NR 53 TC 11 Z9 11 U1 30 U2 57 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1751-7362 EI 1751-7370 J9 ISME J JI ISME J. PD JUL PY 2016 VL 10 IS 7 BP 1669 EP 1681 DI 10.1038/ismej.2015.235 PG 13 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA DP2BC UT WOS:000378292100011 PM 26905627 ER PT J AU Waterman, DM Liu, XF Motta, D Garcia, MH AF Waterman, David M. Liu, Xiaofeng Motta, Davide Garcia, Marcelo H. TI Analytical Lagrangian Model of Sediment Oxygen Demand and Reaeration Flux Coevolution in Streams SO JOURNAL OF ENVIRONMENTAL ENGINEERING LA English DT Article ID DIFFUSIONAL MASS-TRANSFER; NEAR-BED TURBULENCE; DISSOLVED-OXYGEN; WATER INTERFACE; FLOW AB An analytical model is developed for unidirectional-flow waterways in which the dissolved oxygen (DO) mass balance is dominated by reaeration and sediment oxygen demand (SOD) fluxes. To accurately represent the feedback between the two principal fluxes and the resulting spatial distribution of depth-averaged DO concentration (CDO) in the water column, formulations for the fluxes are implemented that are consistent with mass transfer theory rather than commonly used formulations (e.g.,zeroth-order SOD) that neglect mass transfer physics. Water-side and sediment-side processes are incorporated into the SOD formulation; the sediment-side processes are simplified and parameterized empirically. The resulting DO mass conservation equation is expressed as a first-order linear ordinary differential equation. The model has similarities to the classic Streeter-Phelps model in the following respects: (1)it implements a Lagrangian control volume, (2)it expresses the competition between two flux or source/sink terms in the DO mass balance, and (3)it applies downstream of a flow or DO introduction location. The analytical solution yields a steady-state longitudinal CDO profile that spatially evolves to an asymptotic condition whereby reaeration and SOD fluxes have equal values. The difference in CDO evolution when implementing a zeroth-order SOD formulation versus the first-order SOD formulation is highlighted. The flow management implications are discussed and an example calculation is presented for the case of flow augmentation in Bubbly Creek in Chicago, Illinois. C1 [Waterman, David M.; Garcia, Marcelo H.] Univ Illinois, Ven Te Chow Hydrosyst Lab, Dept Civil & Environm Engn, Urbana, IL 61801 USA. [Waterman, David M.] Argonne Natl Lab, 9700 South Cass Ave, Argonne, IL 60439 USA. [Liu, Xiaofeng] Penn State Univ, Dept Civil & Environm Engn, 223B Sackett, State Coll, PA 16802 USA. [Motta, Davide] Amec Foster Wheeler Plc, Philadelphia, PA 19107 USA. RP Waterman, DM (reprint author), Univ Illinois, Ven Te Chow Hydrosyst Lab, Dept Civil & Environm Engn, Urbana, IL 61801 USA.; Waterman, DM (reprint author), Argonne Natl Lab, 9700 South Cass Ave, Argonne, IL 60439 USA. EM waterma3@illinois.edu; xliu@engr.psu.edu; davide.motta3@gmail.com; mhgarcia@illinois.edu FU Metropolitan Water Reclamation District of Greater Chicago; Argonne National Laboratory; Ben Chie Yen Fellowship FX This work was an extension of a project originally funded by the Metropolitan Water Reclamation District of Greater Chicago. The first author received financial support from the Argonne National Laboratory and the Ben Chie Yen Fellowship during various stages of manuscript preparation. Thanks are extended to Ben L. O'Connor for providing helpful comments on an early version of the manuscript. Two anonymous reviewers are acknowledged for their comments, which led to improvement of the manuscript. NR 47 TC 1 Z9 1 U1 6 U2 6 PU ASCE-AMER SOC CIVIL ENGINEERS PI RESTON PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA SN 0733-9372 EI 1943-7870 J9 J ENVIRON ENG JI J. Environ. Eng.-ASCE PD JUL PY 2016 VL 142 IS 7 AR 04016028 DI 10.1061/(ASCE)EE.1943-7870.0001095 PG 13 WC Engineering, Environmental; Engineering, Civil; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA DQ0AJ UT WOS:000378859100005 ER PT J AU Wojnarowicz, M Tagge, C Fisher, A Gaudreau, A Minaeva, O Moncaster, J Casey, N Zhang, XL Miry, O Vose, LR Sugah, G Gopaul, K Hall, G Cleveland, R Moss, W Anderson, A Huber, B Alvarez, V Stein, T Stanton, P McKee, A Goldstein, L AF Wojnarowicz, Mark Tagge, Chad Fisher, Andrew Gaudreau, Amanda Minaeva, Olga Moncaster, Juliet Casey, Noel Zhang, X. L. Miry, Omid Vose, L. R. Sugah, G. Gopaul, K. Hall, Garth Cleveland, Robin Moss, William Anderson, Andrew Huber, Bertrand Alvarez, Victor Stein, Thor Stanton, Patric McKee, Ann Goldstein, Lee TI CHRONIC TRAUMATIC ENCEPHALOPATHY IN ATHLETES IN THE SUBACUTE PERIOD AFTER CONCUSSIVE IMPACT AND A MOUSE MODEL OF IMPACT CONCUSSION SO JOURNAL OF NEUROTRAUMA LA English DT Meeting Abstract CT 34th Annual National Neurotrauma Symposium CY JUN 26-29, 2016 CL Lexington, KY DE modeling; preclinical animal model; neuroinflammation; imaging C1 [Wojnarowicz, Mark; Tagge, Chad; Fisher, Andrew; Gaudreau, Amanda; Minaeva, Olga; Moncaster, Juliet; Casey, Noel; Huber, Bertrand; Alvarez, Victor; Stein, Thor; McKee, Ann; Goldstein, Lee] Boston Univ, Sch Med, Boston, MA 02118 USA. [Tagge, Chad; Fisher, Andrew; Gaudreau, Amanda; Minaeva, Olga] Boston Univ, Coll Engn, Boston, MA 02215 USA. [Miry, Omid; Vose, L. R.; Sugah, G.; Gopaul, K.; Stanton, Patric] New York Med Coll, Valhalla, NY 10595 USA. [Hall, Garth] UMass Lowell, Lowell, MA USA. [Cleveland, Robin] Univ Oxford, Oxford, England. [Moss, William; Anderson, Andrew] Lawrence Livermore Natl Lab, Livermore, CA USA. [Huber, Bertrand; Alvarez, Victor; Stein, Thor; McKee, Ann; Goldstein, Lee] Boston VA Med Ctr JamaicaPlain, Boston, MA USA. [Huber, Bertrand; Alvarez, Victor; Stein, Thor; McKee, Ann; Goldstein, Lee] Boston Univ, Alzheimers Dis & CTE Ctr, Boston, MA 02215 USA. NR 0 TC 0 Z9 0 U1 2 U2 2 PU MARY ANN LIEBERT, INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 0897-7151 EI 1557-9042 J9 J NEUROTRAUM JI J. Neurotrauma PD JUL 1 PY 2016 VL 33 IS 13 MA PSA-051 BP A31 EP A31 PG 1 WC Critical Care Medicine; Clinical Neurology; Neurosciences SC General & Internal Medicine; Neurosciences & Neurology GA DP2QY UT WOS:000378336200081 ER PT J AU Lin, PH Woodward, PR AF Lin, Pei-Hung Woodward, Paul R. TI Transforming the multifluid PPM algorithm to run on GPUs SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING LA English DT Article DE Precompilation; Code transformation; GPU computation; Computational fluid dynamics ID PERFORMANCE AB In the past several years, there has been much success in adapting numerical algorithms involving linear algebra and pairwise N-body force calculations to run well on GPUs. These numerical algorithms share the feature that high computational intensity can be achieved while holding only small amounts of data in on-chip storage. In previous work, we combined a briquette data structure and a heavily pipelined CFD processing of these data briquettes in sequence that results in a very small on-chip data workspace and high performance for our multifluid PPM gas dynamics algorithm on CPUs with standard sized caches. The on-chip data workspace produced in that earlier work is not small enough to meet the requirements of today's GPUs, which demand that no more than 32 kB of on-chip data be associated with a single thread of control (a warp). Here we report a variant of our earlier technique that allows a user-controllable trade-off between workspace size and redundant computation that can be a win on GPUs. We use our multifluid PPM gas dynamics algorithm to illustrate this technique. Performance results for this algorithm in 32-bit precision on a recently introduced dual-chip GPU, the Nvidia K80, are 1.7 times that on a similarly recent dual CPU node using two 16-core Intel Haswell chips. The redundant computation that allows the on-chip data context for each thread of control to be less than 32 kB is roughly 9% of the total. We have built an automatic translator from a Fortran expression to CUDA to ease the programming burden that is involved in applying our technique. (C) 2016 Elsevier Inc. All rights reserved. C1 [Lin, Pei-Hung] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. [Woodward, Paul R.] Univ Minnesota, 117 Pleasant St SE, Minneapolis, MN 55455 USA. RP Lin, PH (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM lin32@llnl.gov; paul@lcse.umn.edu OI Lin, Pei-Hung/0000-0003-4977-814X FU Los Alamos National Laboratory [237111]; Sandia National Laboratory [1254431]; National Science Foundation [1413548]; US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344. LLNL-JRNL-673849]; PRAC grant [1440025] FX Development of PPM algorithms and codes, beginning with our work on the Los Alamos Roadrunner machine, that has led to the work reported here has been supported by contracts from the Los Alamos National Laboratory subcontract 237111 and Sandia National Laboratory subcontract 1254431. Our work at the University of Minnesota has also been supported by National Science Foundation through grant 1413548 and PRAC grant 1440025 for access to NCSA's Blue Waters system. We have also carried out tests on early examples of advanced hardware at Sandia's CSRI. This work was also performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-JRNL-673849. NR 20 TC 0 Z9 0 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 EI 1096-0848 J9 J PARALLEL DISTR COM JI J. Parallel Distrib. Comput. PD JUL PY 2016 VL 93-94 BP 56 EP 65 DI 10.1016/j.jpdc.2016.04.005 PG 10 WC Computer Science, Theory & Methods SC Computer Science GA DP8PF UT WOS:000378759400005 ER PT J AU Stenfeldt, C Eschbaumer, M Rekant, SI Pacheco, JM Smoliga, GR Hartwig, EJ Rodriguez, LL Arzt, J AF Stenfeldt, Carolina Eschbaumer, Michael Rekant, Steven I. Pacheco, Juan M. Smoliga, George R. Hartwig, Ethan J. Rodriguez, Luis L. Arzt, Jonathan TI The Foot-and-Mouth Disease Carrier State Divergence in Cattle SO JOURNAL OF VIROLOGY LA English DT Article ID POLYMERASE CHAIN-REACTION; BUFFALO SYNCERUS CAFFER; KIDNEY-CELL LINE; VIRUS-INFECTION; VIRAL PATHWAYS; SECRETORY IGA; PATHOGENESIS; ANTIBODY; REPLICATION; PERSISTENCE AB The pathogenesis of persistent foot-and-mouth disease virus (FMDV) infection was investigated in 46 cattle that were either naive or had been vaccinated using a recombinant, adenovirus-vectored vaccine 2 weeks before challenge. The prevalence of FMDV persistence was similar in both groups (62% in vaccinated cattle, 67% in nonvaccinated cattle), despite vaccinated cattle having been protected from clinical disease. Analysis of antemortem infection dynamics demonstrated that the subclinical divergence between FMDV carriers and animals that cleared the infection had occurred by 10 days postinfection (dpi) in vaccinated cattle and by 21 dpi in nonvaccinated animals. The anatomic distribution of virus in subclinically infected, vaccinated cattle was restricted to the pharynx throughout both the early and the persistent phases of infection. In nonvaccinated cattle, systemically disseminated virus was cleared from peripheral sites by 10 dpi, while virus selectively persisted within the nasopharynx of a subset of animals. The quantities of viral RNA shed in oropharyngeal fluid during FMDV persistence were similar in vaccinated and nonvaccinated cattle. FMDV structural and nonstructural proteins were localized to follicle-associated epithelium of the dorsal soft palate and dorsal nasopharynx in persistently infected cattle. Host transcriptome analysis of tissue samples processed by laser capture microdissection indicated suppression of antiviral host factors (interferon regulatory factor 7, CXCL10 [gamma interferon-inducible protein 10], gamma interferon, and lambda interferon) in association with persistent FMDV. In contrast, during the transitional phase of infection, the level of expression of IFN-lambda mRNA was higher in follicle-associated epithelium of animals that had cleared the infection. This work provides novel insights into the intricate mechanisms of FMDV persistence and contributes to further understanding of this critical aspect of FMDV pathogenesis. C1 [Stenfeldt, Carolina; Eschbaumer, Michael; Rekant, Steven I.; Pacheco, Juan M.; Smoliga, George R.; Hartwig, Ethan J.; Rodriguez, Luis L.; Arzt, Jonathan] ARS, Plum Isl Anim Dis Ctr, Foreign Anim Dis Res Unit, USDA, Greenport, NY 11944 USA. [Stenfeldt, Carolina; Eschbaumer, Michael; Rekant, Steven I.] Oak Ridge Inst Sci & Educ, PIADC Res Participat Program, Oak Ridge, TN 37830 USA. RP Stenfeldt, C; Arzt, J (reprint author), ARS, Plum Isl Anim Dis Ctr, Foreign Anim Dis Res Unit, USDA, Greenport, NY 11944 USA.; Stenfeldt, C (reprint author), Oak Ridge Inst Sci & Educ, PIADC Res Participat Program, Oak Ridge, TN 37830 USA. EM Carolina.Stenfeldt@ars.usda.gov; Jonathan.Arzt@ars.usda.gov OI Pacheco, Juan/0000-0001-5477-0201; Arzt, Jonathan/0000-0002-7517-7893 FU USDA | Agricultural Research Service (ARS) (CRIS) [1940-32000-057-00D]; DHS | Science and Technology Directorate (ST) [HSHQPM-13-X-00131] FX This work, including the efforts of Juan M. Pacheco, George R. Smoliga, Ethan J. Hartwig, Luis Rodriguez, and Jonathan Arzt, was funded by USDA | Agricultural Research Service (ARS) (CRIS 1940-32000-057-00D). This work, including the efforts of Carolina Stenfeldt, Michael Eschbaumer, and Steven I. Rekant, was funded by DHS | Science and Technology Directorate (S&T) (HSHQPM-13-X-00131). NR 67 TC 2 Z9 2 U1 3 U2 5 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0022-538X EI 1098-5514 J9 J VIROL JI J. Virol. PD JUL PY 2016 VL 90 IS 14 BP 6344 EP 6364 DI 10.1128/JVI.00388-16 PG 21 WC Virology SC Virology GA DP7DG UT WOS:000378658800015 PM 27147736 ER PT J AU Zhang, W Krishnan, KM AF Zhang, Wei Krishnan, Kannan M. TI Epitaxial exchange-bias systems: From fundamentals to future spin-orbitronics SO MATERIALS SCIENCE & ENGINEERING R-REPORTS LA English DT Review ID LAYER THICKNESS DEPENDENCE; FERROMAGNETIC/ANTIFERROMAGNETIC BILAYERS; ANTIFERROMAGNETIC SPINTRONICS; TEMPERATURE-DEPENDENCE; MAGNETIZATION REVERSAL; ANGULAR-DEPENDENCE; THIN-FILMS; FIELD; NANOSTRUCTURES; ANISOTROPY AB Exchange bias has been investigated for more than half a century and several insightful reviews, published around the year 2000, have already summarized many key experimental and theoretical aspects related to this phenomenon. Since then, due to developments in thin-film fabrication and sophisticated characterization methods, exchange bias continues to show substantial advances; in particular, recent studies on epitaxial systems, which is the focus of this review, allow many long-standing mysteries of exchange bias to be unambiguously resolved. The advantage of epitaxial samples lies in the well-defined interface structures, larger coherence lengths, and competing magnetic anisotropies, which are often negligible in polycrystalline samples. Beginning with a discussion of the microscopic spin properties at the ferromagnetic/antiferromagnetic interface, we correlate the details of spin lattices with phenomenological anisotropies, and finally connect the two by introducing realistic measurement approaches and models. We conclude by providing a brief perspective on the future of exchange bias and related studies in the context of the rapidly evolving interest in antiferromagnetic spintronics. (C) 2016 Elsevier B.V. All rights reserved. C1 [Zhang, Wei] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Krishnan, Kannan M.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. RP Zhang, W (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM zwei@anl.gov; kannanmk@uw.edu FU NSF [1063489]; U.S. Department of Energy, Office of Science, Materials Science and Engineering Division FX W.Z. is very grateful for the enormous help, support and encouragement received from his collaborators throughout these years: Dr. Qingfeng Zhan (NIMTE), Dr. Mark Bowden (PNNL), Dr. Sebastian Bruck (West Australia), Dr. Thomas Eimuller (Kempten), Dr. Yu Fu (Duisburg), Prof. Mingzhong Wu (CSU), Dr. Matt Ferguson (UW), Dr. Yufeng Hou (Western Digital), Dr. Zheng Li (Apple), Dr. Axel Hoffmann (ANL), Dr. Suzanne to Velthuis (ANL), and Dr. Yaohua Liu (ORNL). We also thank NSF for financial support under grant No. 1063489. Work at Argonne, including finalization of the manuscript, is supported by the U.S. Department of Energy, Office of Science, Materials Science and Engineering Division. NR 262 TC 3 Z9 3 U1 28 U2 44 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0927-796X EI 1879-212X J9 MAT SCI ENG R JI Mater. Sci. Eng. R-Rep. PD JUL PY 2016 VL 105 BP 1 EP 20 DI 10.1016/j.mser.2016.04.001 PG 20 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA DQ1IJ UT WOS:000378954400001 ER PT J AU Luo, XY Lu, J Sohm, E Ma, L Wu, TP Wen, JG Qiu, DT Xu, YK Ren, Y Miller, DJ Amine, K AF Luo, Xiangyi Lu, Jun Sohm, Evan Ma, Lu Wu, Tianpin Wen, Jianguo Qiu, Dantong Xu, YunKai Ren, Yang Miller, Dean J. Amine, Khalil TI Uniformly dispersed FeOx atomic clusters by pulsed arc plasma deposition: An efficient electrocatalyst for improving the performance of Li-O-2 battery SO NANO RESEARCH LA English DT Article DE Li-O-2 battery; FeOx atomic cluster; electrocatalyst; pulsed arc plasma deposition (APD) ID LITHIUM-OXYGEN BATTERIES; FUEL-CELLS; CATALYSTS; ELECTROLYTES; ANODE; INSIGHTS; SOLVENT; AIR AB The present study explored a new method to improve the catalytic activity of non-precious metals, especially in electrochemical reactions. Highly ionized Fe plasma produced by arc discharge was uniformly deposited on a porous carbon substrate and formed atomic clusters on the carbon surface. The as-prepared FeOx/C material was tested as a cathode material in a rechargeable Li-O-2 battery under different current rates. The results showed significant improvement in battery performance in terms of both cycle life and reaction rate. Furthermore, X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showed that the as-prepared cathode material stabilized the cathode and reduced side reactions and that the current rate was a critical factor in the nucleation of the discharge products. C1 [Luo, Xiangyi; Xu, YunKai] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Lu, Jun; Qiu, Dantong; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Sohm, Evan] ULVAC Technol Inc, Methuen, MA 01844 USA. [Ma, Lu; Wu, Tianpin; Ren, Yang] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Wen, Jianguo; Miller, Dean J.] Argonne Natl Lab, Ctr Nanoscale Mat Nanosci & Technol, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Lu, J (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM junlu@anl.gov FU US Department of Energy from the Vehicle Technologies Office, Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) [DE-AC0206CH11357]; US Department of Energy, Office of Basic Energy Sciences [DE-AC0206CH11357] FX This project was supported by the US Department of Energy under contract (No. DE-AC0206CH11357) from the Vehicle Technologies Office, Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE). Use of the Advanced Photon Source and the Electron Microscopy Center-Center for Nanoscale Materials supported by the US Department of Energy, Office of Basic Energy Sciences, under contract (No. DE-AC0206CH11357). NR 25 TC 1 Z9 1 U1 10 U2 50 PU TSINGHUA UNIV PRESS PI BEIJING PA TSINGHUA UNIV, RM A703, XUEYAN BLDG, BEIJING, 10084, PEOPLES R CHINA SN 1998-0124 EI 1998-0000 J9 NANO RES JI Nano Res. PD JUL PY 2016 VL 9 IS 7 BP 1913 EP 1920 DI 10.1007/s12274-016-1083-0 PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA DP5GC UT WOS:000378523300005 ER PT J AU Li, K Zeng, XQ Gao, SM Ma, L Wang, QY Xu, H Wang, ZY Huang, BB Dai, Y Lu, J AF Li, Kai Zeng, Xiaoqiao Gao, Shanmin Ma, Lu Wang, Qingyao Xu, Hui Wang, Zeyan Huang, Baibiao Dai, Ying Lu, Jun TI Ultrasonic-assisted pyrolyzation fabrication of reduced SnO2-x/g-C3N4 heterojunctions: Enhance photoelectrochemical and photocatalytic activity under visible LED light irradiation SO NANO RESEARCH LA English DT Article DE reduced SnO2-x; g-C3N4; heterojunctions; photoelectrochemical; light-emitting diode light source ID GRAPHITIC CARBON NITRIDE; HYDROGEN-PRODUCTION; OXYGEN VACANCIES; COMPOSITE PHOTOCATALYST; SNO2 NANOPARTICLES; DYE DEGRADATION; TIN OXIDE; PERFORMANCE; NANOSHEETS; EVOLUTION AB Novel SnO2-x/g-C3N4 heterojunction nanocomposites composed of reduced SnO2-x nanoparticles and exfoliated g-C3N4 nanosheets were prepared by a convenient one-step pyrolysis method. The structural, morphological, and optical properties of the as-prepared nanocomposites were characterized in detail, indicating that the aggregation of g-C3N4 nanosheets was prevented by small, well-dispersed SnO2-x nanoparticles. The ultraviolet-visible spectroscopy absorption bands of the nanocomposites were shifted to a longer wavelength region than those exhibited by pure SnO2 or g-C3N4. The charge transfer and recombination processes occurring in the nanocomposites were investigated using linear scan voltammetry and electrochemical impedance spectroscopy. Under 30-W visible-light-emitting diode irradiation, the heterojunction containing 27.4 wt.% SnO2-x exhibited the highest photocurrent density of 0.0468 mA.cm(-2), which is 33.43 and 5.64 times larger than that of pure SnO2 and g-C3N4, respectively. The photocatalytic activity of the heterojunction material was investigated by degrading rhodamine B under irradiation from the same light source. Kinetic study revealed a promising degradation rate constant of 0.0226 min(-1) for the heterojunction containing 27.4 wt.% SnO2-x, which is 32.28 and 5.79 times higher than that of pure SnO2 and g-C3N4, respectively. The enhanced photoelectrochemical and photocatalytic performances of the nanocomposite may be due to its appropriate SnO2-x content and the compact structure of the junction between the SnO2-x nanoparticles and the g-C3N4 nanosheets, which inhibits the recombination of photogenerated electrons and holes. C1 [Li, Kai; Gao, Shanmin; Wang, Qingyao; Xu, Hui] Ludong Univ, Coll Chem & Mat Sci, Yantai 264025, Peoples R China. [Zeng, Xiaoqiao; Lu, Jun] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Gao, Shanmin; Wang, Zeyan; Huang, Baibiao; Dai, Ying] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China. [Ma, Lu] Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Gao, SM (reprint author), Ludong Univ, Coll Chem & Mat Sci, Yantai 264025, Peoples R China.; Lu, J (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.; Gao, SM (reprint author), Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China. EM gaosm@ustc.edu; junlu@anl.gov FU Natural Science Foundation of Shandong Province [ZR2013EMZ001]; Science and Technology Development Plan Project of Shandong Province [2014GSF117015]; National Basic Research Program of China [2013CB632401]; National Natural Science Foundation of China [51402145]; U.S. Department of Energy [DE-AC0206CH11357]; Vehicle Technologies Office, Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) FX This work was supported by the Key Project of Natural Science Foundation of Shandong Province (No. ZR2013EMZ001), the Science and Technology Development Plan Project of Shandong Province (No. 2014GSF117015), the National Basic Research Program of China (No. 2013CB632401) and the National Natural Science Foundation of China (No. 51402145). This work was also supported by the U.S. Department of Energy under Contract DE-AC0206CH11357 with the main support provided by the Vehicle Technologies Office, Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE). NR 52 TC 2 Z9 2 U1 51 U2 82 PU TSINGHUA UNIV PRESS PI BEIJING PA TSINGHUA UNIV, RM A703, XUEYAN BLDG, BEIJING, 100084, PEOPLES R CHINA SN 1998-0124 EI 1998-0000 J9 NANO RES JI Nano Res. PD JUL PY 2016 VL 9 IS 7 BP 1969 EP 1982 DI 10.1007/s12274-016-1088-8 PG 14 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA DP5GC UT WOS:000378523300010 ER PT J AU Hallegatte, S Rogelj, J Allen, M Clarke, L Edenhofer, O Field, CB Friedlingstein, P van Kesteren, L Knutti, R Mach, KJ Mastrandrea, M Michel, A Minx, J Oppenheimer, M Plattner, GK Riahi, K Schaeffer, M Stocker, TF van Vuuren, DP AF Hallegatte, Stephane Rogelj, Joeri Allen, Myles Clarke, Leon Edenhofer, Ottmar Field, Christopher B. Friedlingstein, Pierre van Kesteren, Line Knutti, Reto Mach, Katharine J. Mastrandrea, Michael Michel, Adrien Minx, Jan Oppenheimer, Michael Plattner, Gian-Kasper Riahi, Keywan Schaeffer, Michiel Stocker, Thomas F. van Vuuren, Detlef P. TI Mapping the climate change challenge SO NATURE CLIMATE CHANGE LA English DT Article ID MITIGATION; TARGETS; CO2; UNCERTAINTY; POLICY; DOOR AB Discussions on a long-term global goal to limit climate change, in the form of an upper limit to warming, were only partially resolved at the United Nations Framework Convention on Climate Change negotiations in Paris, 2015. Such a political agreement must be informed by scientific knowledge. One way to communicate the costs and benefits of policies is through a mapping that systematically explores the consequences of different choices. Such a multi-disciplinary effort based on the analysis of a set of scenarios helped structure the IPCC AR5 Synthesis Report. This Perspective summarizes this approach, reviews its strengths and limitations, and discusses how decision-makers can use its results in practice. It also identifies research needs that can facilitate integrated analysis of climate change and help better inform policy-makers and the public. C1 [Hallegatte, Stephane] World Bank, Climate Change Policy Team, 1818 H St NW, Washington, DC 20433 USA. [Rogelj, Joeri; Riahi, Keywan] IIASA, Energy Program, Schlosspl 1, A-2361 Laxenburg, Austria. [Rogelj, Joeri; Knutti, Reto] FIN Zurich, Inst Atmospher & Climate Sci, Univ Str 16, CH-8092 Zurich, Switzerland. [Allen, Myles] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. [Allen, Myles] Univ Oxford, Environm Change Inst, Oxford OX1 3QY, England. [Clarke, Leon] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA. [Edenhofer, Ottmar; Minx, Jan] Potsdam Inst Climate Impact Res, D-14473 Potsdam, Germany. [Edenhofer, Ottmar] Tech Univ Berlin, D-10623 Berlin, Germany. [Edenhofer, Ottmar; Minx, Jan] Mercator Res Inst Global Commons & Climate Change, Torgauer Str 12, D-10829 Berlin, Germany. [Field, Christopher B.] Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA. [Field, Christopher B.; Mach, Katharine J.; Mastrandrea, Michael] Carnegie Inst Sci, Dept Global Ecol, 260 Panama St, Stanford, CA 94305 USA. [Friedlingstein, Pierre] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England. [van Kesteren, Line; van Vuuren, Detlef P.] PBL Netherlands Environm Assessment Agcy, POB 303, NL-3720 AH Bilthoven, Netherlands. [Michel, Adrien; Plattner, Gian-Kasper; Stocker, Thomas F.] Univ Bern, Inst Phys, Climate & Environm Phys, Sidlerstr 5, CH-3012 Bern, Switzerland. [Michel, Adrien; Stocker, Thomas F.] Univ Bern, Oeschger Ctr Climate Change Res, Falkenpl 16, CH-3012 Bern, Switzerland. [Minx, Jan] Hertie Sch Governance, Friedrichstr 189, D-10117 Berlin, Germany. [Oppenheimer, Michael] Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA. [Oppenheimer, Michael] Princeton Univ, Woodrow Wilson Sch, Princeton, NJ 08544 USA. [Riahi, Keywan] Graz Univ Technol, A-8010 Graz, Austria. [Schaeffer, Michiel] Climate Analyt GmbH, Friedrichstr 231,Haus B, D-10969 Berlin, Germany. [Schaeffer, Michiel] Wageningen Univ & Res Ctr, Environm Syst Anal Grp, POB 47, NL-6700 AA Wageningen, Netherlands. [van Vuuren, Detlef P.] Univ Utrecht, Copernicus Inst Sustainable Dev, Utrecht, Netherlands. [Plattner, Gian-Kasper] Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland. RP Hallegatte, S (reprint author), World Bank, Climate Change Policy Team, 1818 H St NW, Washington, DC 20433 USA. EM shallegatte@worldbank.org RI Friedlingstein, Pierre/H-2700-2014; Knutti, Reto/B-8763-2008; Edenhofer, Ottmar/E-1886-2013; Plattner, Gian-Kasper/A-5245-2016; Jones, Chris/I-2983-2014; OI Knutti, Reto/0000-0001-8303-6700; Edenhofer, Ottmar/0000-0001-6029-5208; Plattner, Gian-Kasper/0000-0002-3765-0045; Rogelj, Joeri/0000-0003-2056-9061; Minx, Jan Christoph/0000-0002-2862-0178 NR 34 TC 5 Z9 5 U1 31 U2 51 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1758-678X EI 1758-6798 J9 NAT CLIM CHANGE JI Nat. Clim. Chang. PD JUL PY 2016 VL 6 IS 7 BP 663 EP 668 DI 10.1038/NCLIMATE3057 PG 6 WC Environmental Sciences; Environmental Studies; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA DP6LP UT WOS:000378608900014 ER PT J AU Zhang, N Han, C Xu, YJ Foley, JJ Zhang, DT Codrington, J Gray, SK Sun, YG AF Zhang, Nan Han, Chuang Xu, Yi-Jun Foley, Jonathan J. Zhang, Dongtang Codrington, Jason Gray, Stephen K. Sun, Yugang TI Near-field dielectric scattering promotes optical absorption by platinum nanoparticles SO NATURE PHOTONICS LA English DT Article ID VISIBLE-LIGHT; SILVER NANOSTRUCTURES; SLIVER NANOPARTICLES; GOLD NANOPARTICLES; AEROBIC OXIDATION; DIFFERENT SHAPES; CHARGE-CARRIERS; ENERGY-TRANSFER; SURFACE; METAL AB Recent years have seen a surge of interest in tuning the optical properties of metals for a wide range of applications. In contrast to the well-studied plasmonic metals (mainly Au and Ag), which have distinct absorption peaks, tuning the absorption peak of small (<10 nm) Pt nanoparticles in the visible spectral region, but without increasing their size, has been a major challenge. Here we report, for the first time, a new light absorption model to modulate the absorption peak of supported small Pt nanoparticles in the visible spectral region by adjusting their dielectric environment instead of changing their size. In this model, the Pt nanoparticles can absorb the scattered light in the near field of the dielectric surface of a spherical SiO2 support, thereby exhibiting well-defined visible-light absorption peaks and driving photocatalytic redox reactions. This discovery could open a promising new route to using Pt nanoparticles as visible-light photon absorbers for solar energy conversion. C1 [Zhang, Nan; Han, Chuang; Xu, Yi-Jun] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China. [Zhang, Nan; Han, Chuang; Xu, Yi-Jun] Fuzhou Univ, Coll Chem, New Campus, Fuzhou 350108, Peoples R China. [Foley, Jonathan J.; Codrington, Jason] William Paterson Univ, Dept Chem, 300 Pompton Rd, Wayne, NJ 07470 USA. [Foley, Jonathan J.; Gray, Stephen K.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. [Zhang, Dongtang; Sun, Yugang] Temple Univ, Dept Chem, 1901 North 13th St, Philadelphia, PA 19122 USA. RP Xu, YJ (reprint author), Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China.; Xu, YJ (reprint author), Fuzhou Univ, Coll Chem, New Campus, Fuzhou 350108, Peoples R China.; Sun, YG (reprint author), Temple Univ, Dept Chem, 1901 North 13th St, Philadelphia, PA 19122 USA. EM yjxu@fzu.edu.cn; ygsun@temple.edu RI Sun, Yugang /A-3683-2010 OI Sun, Yugang /0000-0001-6351-6977 FU National Natural Science Foundation of China (NSFC) [U1463204, 20903023, 21173045]; Award Program for Minjiang Scholar Professorship; Natural Science Foundation (NSF) of Fujian Province [2012J06003]; State Key Laboratory of Photocatalysis on Energy and Environment [2014A05]; 1st Program of Fujian Province for Top Creative Young Talents; Program for Returned High-Level Overseas Chinese Scholars of Fujian Province; Center for Nanoscale Materials, a US Department of Energy, Office of Science, Office of Basic Energy Sciences User Facility [DE-AC02-06CH11357]; Temple University; William Paterson University FX The authors acknowledge support from the National Natural Science Foundation of China (NSFC) (U1463204, 20903023, 21173045), the Award Program for Minjiang Scholar Professorship, the Natural Science Foundation (NSF) of Fujian Province for Distinguished Young Investigator Grant (2012J06003), the Independent Research Project of State Key Laboratory of Photocatalysis on Energy and Environment (no. 2014A05), the 1st Program of Fujian Province for Top Creative Young Talents and the Program for Returned High-Level Overseas Chinese Scholars of Fujian Province. This work was performed, in part, at the Center for Nanoscale Materials, a US Department of Energy, Office of Science, Office of Basic Energy Sciences User Facility (contract no. DE-AC02-06CH11357). Y.S. acknowledges start-up fund support from Temple University. J.J.F. acknowledges start-up funds from William Paterson University. NR 49 TC 23 Z9 23 U1 24 U2 44 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1749-4885 EI 1749-4893 J9 NAT PHOTONICS JI Nat. Photonics PD JUL PY 2016 VL 10 IS 7 BP 473 EP + DI 10.1038/NPHOTON.2016.76 PG 11 WC Optics; Physics, Applied SC Optics; Physics GA DP9TG UT WOS:000378839600014 ER PT J AU Kuepper, K Kuschel, O Pathe, N Schemme, T Schmalhorst, J Thomas, A Arenholz, E Gorgoi, M Ovsyannikov, R Bartkowski, S Reiss, G Wollschlager, J AF Kuepper, K. Kuschel, O. Pathe, N. Schemme, T. Schmalhorst, J. Thomas, A. Arenholz, E. Gorgoi, M. Ovsyannikov, R. Bartkowski, S. Reiss, G. Wollschlaeger, J. TI Electronic and magnetic structure of epitaxial Fe3O4(001)/NiO heterostructures grown on MgO(001) and Nb-doped SrTiO3(001) SO PHYSICAL REVIEW B LA English DT Article ID MEAN FREE PATHS; THIN-FILMS; PHOTOELECTRON-SPECTROSCOPY; EXCHANGE-ANISOTROPY; FE3O4/NIO BILAYERS; RANGE; FERROMAGNETS; DEFECTS; SURFACE; XPS AB We study the underlying chemical, electronic, and magnetic properties of a number of magnetite-based thin films. The main focus is placed onto Fe3O4(001)/NiO bilayers grown on MgO(001) and Nb-SrTiO3(001) substrates. We compare the results with those obtained on pure Fe3O4(001) thin films. It is found that the magnetite layers are oxidized and Fe3+ dominates at the surfaces due to maghemite (gamma-Fe2O3) formation, which decreases with increasingmagnetite layer thickness. For layer thicknesses of around 20 nm and above, the cationic distribution is close to that of stoichiometric Fe3O4. At the interface between NiO and Fe3O4 we find the Ni to be in a divalent valence state, with unambiguous spectral features in the Ni 2p core level x-ray photoelectron spectra typical for NiO. The formation of a significant NiFe2O4 interlayer can be excluded by means of x-ray magnetic circular dichroism. Magneto-optical Kerr effect measurements reveal significant higher coercive fields compared to magnetite thin films grown on MgO(001), and an altered in-plane easy axis pointing in the < 100 > direction. We discuss the spin magnetic moments of the magnetite layers and find that a thickness of 20 nm or above leads to spin magnetic moments close to that of bulk magnetite. C1 [Kuepper, K.; Kuschel, O.; Pathe, N.; Schemme, T.; Bartkowski, S.; Wollschlaeger, J.] Univ Osnabruck, Dept Phys, D-49076 Osnabruck, Germany. [Kuepper, K.; Kuschel, O.; Pathe, N.; Schemme, T.; Bartkowski, S.; Wollschlaeger, J.] Univ Osnabruck, Ctr Phys & Chem New Mat, D-49076 Osnabruck, Germany. [Schmalhorst, J.; Thomas, A.; Reiss, G.] Univ Bielefeld, Dept Phys, Ctr Spinelect Mat & Devices, Univ Str 25, D-33615 Bielefeld, Germany. [Thomas, A.] Leibniz Inst Solid State & Mat Res Dresden IFW Dr, Inst Metall Mat, Helmholtzstr 20, D-01069 Dresden, Germany. [Arenholz, E.; Ovsyannikov, R.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Gorgoi, M.] Helmholtz Zentrum Mat & Energie GmbH, D-12489 Berlin, Germany. RP Kuepper, K (reprint author), Univ Osnabruck, Dept Phys, D-49076 Osnabruck, Germany.; Kuepper, K (reprint author), Univ Osnabruck, Ctr Phys & Chem New Mat, D-49076 Osnabruck, Germany. EM kkuepper@uos.de RI Thomas, Andy/C-7210-2008; Reiss, Gunter/A-3423-2010; Kupper, Karsten/G-1397-2016 OI Thomas, Andy/0000-0001-8594-9060; Reiss, Gunter/0000-0002-0918-5940; FU Deutsche Forschungsgemeinschaft (DFG) [KU2321/2-1]; Advanced Light Source, ALS, Lawrence Berkeley National Laboratory, Berkeley, USA [DE-AC03-76SF00098] FX Financial support by the Deutsche Forschungsgemeinschaft (DFG) (KU2321/2-1) is gratefully acknowledged. Part of this work has been performed at the Advanced Light Source, ALS, Lawrence Berkeley National Laboratory, Berkeley, USA, which is operated under Contract No. DE-AC03-76SF00098. We acknowledge Helmholtz-Zentrum Berlin for provision of synchrotron radiation beam time at beamline KMC-1 of Bessy II. NR 72 TC 0 Z9 0 U1 21 U2 42 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 JUL 1 PY 2016 VL 94 IS 2 AR 024401 DI 10.1103/PhysRevB.94.024401 PG 10 WC Physics, Condensed Matter SC Physics GA DQ0SH UT WOS:000378909700002 ER PT J AU Ismail, A Izaguirre, E Shuve, B AF Ismail, Ahmed Izaguirre, Eder Shuve, Brian TI Illuminating new electroweak states at hadron colliders SO PHYSICAL REVIEW D LA English DT Article ID DARK-MATTER; SUPERSYMMETRY; PHENOMENOLOGY; COLLISIONS; SEARCH; LEVEL AB In this paper, we propose a novel powerful strategy to perform searches for new electroweak states. Uncolored electroweak states appear in generic extensions of the Standard Model (SM) and yet are challenging to discover at hadron colliders. This problem is particularly acute when the lightest state in the electroweak multiplet is neutral and all multiplet components are approximately degenerate. In this scenario, production of the charged fields of the multiplet is followed by decay into nearly invisible states; if this decay occurs promptly, the only way to infer the presence of the reaction is through its missing energy signature. Our proposal relies on emission of photon radiation from the new charged states as a means of discriminating the signal from SM backgrounds. We demonstrate its broad applicability by studying two examples: a pure Higgsino doublet and an electroweak quintuplet field. C1 [Ismail, Ahmed] Univ Illinois, 845 W Taylor St, Chicago, IL 60607 USA. [Ismail, Ahmed] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Izaguirre, Eder] Perimeter Inst Theoret Phys, 31 Caroline St N, Waterloo, ON N2L 2Y5, Canada. [Shuve, Brian] SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. RP Ismail, A (reprint author), Univ Illinois, 845 W Taylor St, Chicago, IL 60607 USA.; Ismail, A (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. FU INFN; U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02-12ER41811]; Perimeter Institute for Theoretical Physics; Government of Canada through Industry Canada; Province of Ontario through the Ministry of Economic Development Innovation FX We are grateful to Valentin Hirschi, Wai-Yee Keung, Bryan Ostdiek, Stefan Prestel, and Scott Thomas for helpful conversations. We particularly thank Bryan Ostdiek for providing us with UFO files for the quintuplet model. A. I. thanks the Galileo Galilei Institute for Theoretical Physics and Perimeter Institute for their hospitality, and INFN for partial support, during the completion of this work. The work of A. I. is supported in part by the U.S. Department of Energy under Grants No. DE-AC02-06CH11357 and No. DE-FG02-12ER41811. This research was supported in part by Perimeter Institute for Theoretical Physics. Research at Perimeter Institute is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Economic Development & Innovation. NR 68 TC 3 Z9 3 U1 0 U2 2 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 JUL 1 PY 2016 VL 94 IS 1 AR 015001 DI 10.1103/PhysRevD.94.015001 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DQ0SP UT WOS:000378910500003 ER PT J AU Chen, CY Zanette, DH Guest, JR Czaplewski, DA Lopez, D AF Chen, Changyao Zanette, Damian H. Guest, Jeffrey R. Czaplewski, David A. Lopez, Daniel TI Self-Sustained Micromechanical Oscillator with Linear Feedback SO PHYSICAL REVIEW LETTERS LA English DT Article ID FREQUENCY; NONLINEARITIES; DISSIPATION; SYSTEMS AB Autonomous oscillators, such as clocks and lasers, produce periodic signals without any external frequency reference. In order to sustain stable periodic motion, there needs to be an external energy supply as well as nonlinearity built into the oscillator to regulate the amplitude. Usually, nonlinearity is provided by the sustaining feedback mechanism, which also supplies energy, whereas the constituent resonator that determines the output frequency stays linear. Here, we propose a new self-sustaining scheme that relies on the nonlinearity originating from the resonator itself to limit the oscillation amplitude, while the feedback remains linear. We introduce a model for describing the working principle of the self-sustained oscillations and validate it with experiments performed on a nonlinear microelectromechanical oscillator. C1 [Chen, Changyao; Guest, Jeffrey R.; Czaplewski, David A.; Lopez, Daniel] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. [Zanette, Damian H.] Consejo Nacl Invest Cient & Tecn, Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina. [Zanette, Damian H.] Consejo Nacl Invest Cient & Tecn, Comis Nacl Energia Atom, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina. RP Lopez, D (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM dlopez@anl.gov RI Guest, Jeffrey/B-2715-2009; OI Guest, Jeffrey/0000-0002-9756-8801; Zanette, Damian/0000-0003-0681-0592 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX Use of the Center for Nanoscale Materials at the 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. We thank D. Antonio for the helpful discussions. NR 35 TC 2 Z9 2 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 JUL 1 PY 2016 VL 117 IS 1 AR 017203 DI 10.1103/PhysRevLett.117.017203 PG 5 WC Physics, Multidisciplinary SC Physics GA DQ0SZ UT WOS:000378911900008 PM 27419587 ER PT J AU Hammond, KC Anichowski, A Brenner, PW Pedersen, TS Raftopoulos, S Traverso, P Volpe, FA AF Hammond, K. C. Anichowski, A. Brenner, P. W. Pedersen, T. S. Raftopoulos, S. Traverso, P. Volpe, F. A. TI Experimental and numerical study of error fields in the CNT stellarator SO PLASMA PHYSICS AND CONTROLLED FUSION LA English DT Article DE error field; stellarator; CNT; optimization ID COLUMBIA-NONNEUTRAL-TORUS; WENDELSTEIN 7-X; RECONSTRUCTION; DESIGN; COILS AB Sources of error fields were indirectly inferred in a stellarator by reconciling computed and numerical flux surfaces. Sources considered so far include the displacements and tilts of the four circular coils featured in the simple CNT stellarator. The flux surfaces were measured by means of an electron beam and fluorescent rod, and were computed by means of a Biot-Savart field-line tracing code. If the ideal coil locations and orientations are used in the computation, agreement with measurements is poor. Discrepancies are ascribed to errors in the positioning and orientation of the in-vessel interlocked coils. To that end, an iterative numerical method was developed. A Newton-Raphson algorithm searches for the coils' displacements and tilts that minimize the discrepancy between the measured and computed flux surfaces. This method was verified by misplacing and tilting the coils in a numerical model of CNT, calculating the flux surfaces that they generated, and testing the algorithm's ability to deduce the coils' displacements and tilts. Subsequently, the numerical method was applied to the experimental data, arriving at a set of coil displacements whose resulting field errors exhibited significantly improved agreement with the experimental results. C1 [Hammond, K. C.; Anichowski, A.; Brenner, P. W.; Pedersen, T. S.; Traverso, P.; Volpe, F. A.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. [Raftopoulos, S.] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Pedersen, T. S.] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany. [Traverso, P.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA. RP Volpe, FA (reprint author), Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. EM fvolpe@columbia.edu RI Volpe, Francesco/D-2994-2009; OI Volpe, Francesco/0000-0002-7193-7090; Hammond, Kenneth/0000-0002-1104-4434 FU Department of Energy; National Science Foundation of the United States [NSF-PHY-04-49813] FX The authors would like to thank S Lazerson for assistance with the field line tracing code employed in this study, as well as R Diaz-Pacheco and Y Wei for their assistance with data collection. The authors would also like to acknowledge the financial support of the Department of Energy and the National Science Foundation of the United States, Grant No. NSF-PHY-04-49813. NR 29 TC 2 Z9 2 U1 1 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0741-3335 EI 1361-6587 J9 PLASMA PHYS CONTR F JI Plasma Phys. Control. Fusion PD JUL PY 2016 VL 58 IS 7 SI SI AR 074002 DI 10.1088/0741-3335/58/7/074002 PG 13 WC Physics, Fluids & Plasmas SC Physics GA DP6OK UT WOS:000378616300002 ER PT J AU Horacek, J Pitts, RA Adamek, J Arnoux, G Bak, JG Brezinsek, S Dimitrova, M Goldston, RJ Gunn, JP Havlicek, J Hong, SH Janky, F LaBombard, B Marsen, S Maddaluno, G Nie, L Pericoli, V Popov, T Panek, R Rudakov, D Seidl, J Seo, DS Shimada, M Silva, C Stangeby, PC Viola, B Vondracek, P Wang, H Xu, GS Xu, Y AF Horacek, J. Pitts, R. A. Adamek, J. Arnoux, G. Bak, J-G Brezinsek, S. Dimitrova, M. Goldston, R. J. Gunn, J. P. Havlicek, J. Hong, S-H Janky, F. LaBombard, B. Marsen, S. Maddaluno, G. Nie, L. Pericoli, V. Popov, Tsv Panek, R. Rudakov, D. Seidl, J. Seo, D. S. Shimada, M. Silva, C. Stangeby, P. C. Viola, B. Vondracek, P. Wang, H. Xu, G. S. Xu, Y. CA JET Contributors TI Multi-machine scaling of the main SOL parallel heat flux width in tokamak limiter plasmas SO PLASMA PHYSICS AND CONTROLLED FUSION LA English DT Article DE tokamak; ITER; SOL decay length; SOL width; scaling ID SCRAPE-OFF-LAYER; TORE-SUPRA TOKAMAK; TRANSPORT; TEMPERATURE; POWER AB As in many of today's tokamaks, plasma start-up in ITER will be performed in limiter configuration on either the inner or outer midplane first wall (FW). The massive, beryllium armored ITER FW panels are toroidally shaped to protect panel-to-panel misalignments, increasing the deposited power flux density compared with a purely cylindrical surface. The chosen shaping should thus be optimized for a given radial profile of parallel heat flux, q(parallel to) in the scrape-off layer (SOL) to ensure optimal power spreading. For plasmas limited on the outer wall in tokamaks, this profile is commonly observed to decay exponentially as q(parallel to) = q(0)exp (-r/lambda(omp)(q)), or, for inner wall limiter plasmas with the double exponential decay comprising a sharp near-SOL feature and a broader main SOL width, lambda(omp)(q). The initial choice of lambda(omp)(q), which is critical in ensuring that current ramp-up or down will be possible as planned in the ITER scenario design, was made on the basis of an extremely restricted L-mode divertor dataset, using infra-red thermography measurements on the outer divertor target to extrapolate to a heat flux width at the main plasma midplane. This unsatisfactory situation has now been significantly improved by a dedicated multi-machine ohmic and L-mode limiter plasma study, conducted under the auspices of the International Tokamak Physics Activity, involving 11 tokamaks covering a wide parameter range with R = 0.4-2.8 m, B-0 = 1.2-7.5T, I-p = 9-2500 kA. Measurements of lambda(omp)(q) in the database are made exclusively on all devices using a variety of fast reciprocating Langmuir probes entering the plasma at a variety of poloidal locations, but with the majority being on the low field side. Statistical analysis of the database reveals nine reasonable engineering and dimensionless scalings. All yield, however, similar predicted values of lambda(omp)(q) mapped to the outside midplane. The engineering scaling with the highest statistical significance, lambda(omp)(q) = 10(P-tot/V(W m(-3)))(-0.38)(a/R/kappa)(1.3), dependent on input power density, aspect ratio and elongation, yields lambda(omp)(q) = [7, 4, 5] cm for I-p = [2.5, 5.0, 7.5] MA, the three reference limiter plasma currents specified in the ITER heat and nuclear load specifications. Mapped to the inboard midplane, the worst case (7.5 MA) corresponds to lambda(omp)(q) similar to 57 +/- 14 imp mm, thus consolidating the 50 mm width used to optimize the FW panel toroidal shape. C1 [Horacek, J.; Adamek, J.; Dimitrova, M.; Havlicek, J.; Janky, F.; Panek, R.; Seidl, J.; Vondracek, P.] Acad Sci Czech Republic, Inst Plasma Phys, Za Slovankou 3, Prague 18000, Czech Republic. [Pitts, R. A.] ITER Org, CS 90 046, F-13067 St Paul Les Durance, France. [Arnoux, G.] JET, Culham Sci Ctr, EUROfus Consortium, Abingdon OX14 3DB, Oxon, England. [Bak, J-G; Hong, S-H; Seo, D. S.] Natl Fus Res Inst, 113 Yuseong Gu, Daejeon 305333, South Korea. [Brezinsek, S.; Xu, Y.] Forschungszentrum Julich, D-52425 Julich, Germany. [Goldston, R. J.] Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Gunn, J. P.] CEA, IRFM, F-13108 St Paul Les Durance, France. [Havlicek, J.; Janky, F.; Vondracek, P.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [LaBombard, B.] MIT, Plasma Sci & Fus Ctr, 175 Albany St, Cambridge, MA 02139 USA. [Marsen, S.] Max Planck Inst Plasma Phys, Teilinst Greifswald, D-17491 Greifswald, Germany. [Maddaluno, G.; Pericoli, V.; Viola, B.] ENEA UT Fusione, Ctr Ric Frascati, Rome, Italy. [Nie, L.] Southwestern Inst Phys, Chengdu, Peoples R China. [Popov, Tsv] Sofia Univ St Kliment Ohridski, Fac Phys, J Bourchier Blvd, Sofia 1164, Bulgaria. [Rudakov, D.] Univ Calif San Diego, Energy Res Ctr, Fus Div, 9500 Gilman Dr,Mail Code 0417,EBU II,Rm 468, La Jolla, CA 92093 USA. [Shimada, M.] Japan Atom Energy Agcy, 2-166 Oaza Obuchi Aza Omotedate, Aomori 0393212, Japan. [Silva, C.] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1699 Lisbon, Portugal. [Stangeby, P. C.] Univ Toronto, Inst Aerosp Studies, N York, ON M3H 5T6, Canada. [Wang, H.; Xu, G. S.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China. RP Horacek, J (reprint author), Acad Sci Czech Republic, Inst Plasma Phys, Za Slovankou 3, Prague 18000, Czech Republic. EM horacek@ipp.cas.cz RI Horacek, Jan/G-8301-2014; Havlicek, Josef/G-2897-2014; Adamek, Jiri/G-7421-2014; Janky, Filip/G-9283-2014; Seidl, Jakub/G-3413-2014; Brezinsek, Sebastijan/B-2796-2017; Vondracek, Petr/G-6786-2014 OI Horacek, Jan/0000-0002-4276-3124; Havlicek, Josef/0000-0002-7047-5007; Brezinsek, Sebastijan/0000-0002-7213-3326; Vondracek, Petr/0000-0003-0125-9252 FU Czech Science Foundation [GA CR P205/12/2327, GA15-10723S, MSMT LM2011021]; US DOE [DE-FG02-07ER54917, DE-AC02-09CH11466, DE-FC02-04ER54698]; Euratom research and training programme withing the European Union's Horizon 2020 [633053] FX This work was supported in part by the projects of Czech Science Foundation GA CR P205/12/2327, GA15-10723S and MSMT LM2011021, the US DOE under DE-FG02-07ER54917 and DE-AC02-09CH11466, DE-FC02-04ER54698. This work has been carried out within the Framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement number 633053 withing the European Union's Horizon 2020. The views and opinions expressed herein do not necessarily reflect those of the ITER Organization and of the European Commission. ITER is the Nuclear Facility INB-174. We acknowledge useful discussions with Renaud Dejarnac, Federico Halpern and Petr Dobias. NR 28 TC 3 Z9 3 U1 13 U2 24 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0741-3335 EI 1361-6587 J9 PLASMA PHYS CONTR F JI Plasma Phys. Control. Fusion PD JUL PY 2016 VL 58 IS 7 SI SI AR 074005 DI 10.1088/0741-3335/58/7/074005 PG 11 WC Physics, Fluids & Plasmas SC Physics GA DP6OK UT WOS:000378616300005 ER PT J AU Orlov, DM Evans, TE Moyer, RA Lyons, BC Ferraro, NM Park, GY AF Orlov, D. M. Evans, T. E. Moyer, R. A. Lyons, B. C. Ferraro, N. M. Park, G-Y TI Impact of resistive MHD plasma response on perturbation field sidebands SO PLASMA PHYSICS AND CONTROLLED FUSION LA English DT Article DE resonant magnetic perturbation; edge stochastic layer; ELM control; plasma response; tokamak ID TOKAMAK; EDGE AB Single fluid linear simulations of a KSTAR RMP ELM suppressed discharge with the M3D-C-1 resistive magnetohydrodynamic code have been performed for the first time. The simulations show that the application of the n = 1 perturbation using the KSTAR in-vessel control coils (IVCC), which apply modest levels of n = 3 sidebands (similar to 20% of the n = 1), leads to levels of n = 3 sideband that are comparable to the n = 1 when plasma response is included. This is due to the reduced level of screening of the rational-surface-resonant n = 3 component relative to the rational-surface-resonant n = 1 component. The n = 3 sidebands could play a similar role in ELM suppression on KSTAR as the toroidal sidebands (n = 1, 2, 4) in DIII-D n = 3 ELM suppression with missing I-coil segments (Paz Soldan et al 2014 Nucl. Fusion 54 073013). This result may help to explain the uniqueness of ELM suppression with n = 1 perturbations in KSTAR since the effective perturbation C1 [Orlov, D. M.; Moyer, R. A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Evans, T. E.; Lyons, B. C.] Gen Atom Co, San Diego, CA USA. [Lyons, B. C.] Oak Ridge Inst Sci Educ, Oak Ridge, TN USA. [Ferraro, N. M.] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Park, G-Y] Natl Fus Res Inst, Daejeon, South Korea. RP Orlov, DM (reprint author), Univ Calif San Diego, La Jolla, CA 92093 USA. EM orlov@fusion.gat.com RI Orlov, Dmitriy/D-2406-2016; OI Orlov, Dmitriy/0000-0002-2230-457X; Ferraro, Nathaniel/0000-0002-6348-7827 FU U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences [DE-FG02-05ER54809, DE-FC02-04ER54698, DE-FC02-06ER54873, DE-AC02-09CH11466]; U.S. Department of Energy Fusion Energy Sciences Postdoctoral Research Program; DOE [DE-AC05-06OR23100] FX The authors would like to thank Dr C Paz-Soldan for helpful discussions. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility under Award Numbers DE-FG02-05ER54809, DE-FC02-04ER54698, DE-FC02-06ER54873, and DE-AC02-09CH11466. This research was supported by the U.S. Department of Energy Fusion Energy Sciences Postdoctoral Research 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 DE-AC05-06OR23100. All opinions expressed in this paper are the authors' and do not necessarily reflect the policies and views of DOE, ORAU, or ORISE. DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP. NR 27 TC 1 Z9 1 U1 4 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0741-3335 EI 1361-6587 J9 PLASMA PHYS CONTR F JI Plasma Phys. Control. Fusion PD JUL PY 2016 VL 58 IS 7 SI SI AR 075009 DI 10.1088/0741-3335/58/7/075009 PG 7 WC Physics, Fluids & Plasmas SC Physics GA DP6OK UT WOS:000378616300019 ER PT J AU Zhang, WT Miller, T Smallwood, CL Yoshida, Y Eisaki, H Kaindl, RA Lee, DH Lanzara, A AF Zhang, Wentao Miller, Tristan Smallwood, Christopher L. Yoshida, Yoshiyuki Eisaki, Hiroshi Kaindl, R. A. Lee, Dung-Hai Lanzara, Alessandra TI Stimulated emission of Cooper pairs in a high-temperature cuprate superconductor SO SCIENTIFIC REPORTS LA English DT Article ID ANGLE-RESOLVED PHOTOEMISSION AB The concept of stimulated emission of bosons has played an important role in modern science and technology, and constitutes the working principle for lasers. In a stimulated emission process, an incoming photon enhances the probability that an excited atomic state will transition to a lower energy state and generate a second photon of the same energy. It is expected, but not experimentally shown, that stimulated emission contributes significantly to the zero resistance current in a superconductor by enhancing the probability that scattered Cooper pairs will return to the macroscopically occupied condensate instead of entering any other state. Here, we use time-and angle-resolved photoemission spectroscopy to study the initial rise of the non-equilibrium quasiparticle population in a Bi2Sr2CaCu2O8+delta cuprate superconductor induced by an ultrashort laser pulse. Our finding reveals significantly slower buildup of quasiparticles in the superconducting state than in the normal state. The slower buildup only occurs when the pump pulse is too weak to deplete the superconducting condensate, and for cuts inside the Fermi arc region. We propose this is a manifestation of stimulated recombination of broken Cooper pairs, and signals an important momentum space dichotomy in the formation of Cooper pairs inside and outside the Fermi arc region. C1 [Zhang, Wentao; Miller, Tristan; Smallwood, Christopher L.; Kaindl, R. A.; Lee, Dung-Hai; Lanzara, Alessandra] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Zhang, Wentao] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China. [Miller, Tristan; Smallwood, Christopher L.; Lee, Dung-Hai; Lanzara, Alessandra] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Yoshida, Yoshiyuki; Eisaki, Hiroshi] Natl Inst Adv Ind Sci & Technol, Elect & Photon Res Inst, Tsukuba 3058568, Japan. RP Zhang, WT; Lanzara, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Zhang, WT (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China.; Lanzara, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM wentaozhang@sjtu.edu.cn; alanzara@lbl.gov RI ZHANG, Wentao/B-3626-2011; Smallwood, Christopher/D-4925-2011 OI Smallwood, Christopher/0000-0002-4103-8748 FU Berkeley Lab's program on Ultrafast Materials Sciences; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [DE-AC02-05CH11231] FX This work was supported by Berkeley Lab's program on Ultrafast Materials Sciences, funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract No. DE-AC02-05CH11231. NR 17 TC 1 Z9 1 U1 7 U2 11 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 JUL 1 PY 2016 VL 6 AR 29100 DI 10.1038/srep29100 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP9WX UT WOS:000378849700001 PM 27364682 ER PT J AU Chan, GCY Hieftje, GM AF Chan, George C. -Y. Hieftje, Gary M. TI Local cooling, plasma reheating and thermal pinching induced by single aerosol droplets injected into an inductively coupled plasma SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article DE Inductively coupled plasma-atomic emission spectrometry; Monodisperse droplets; Local cooling; Plasma pinch; Plasma impedance ID ATOMIC EMISSION-SPECTROMETRY; DRIED MICROPARTICULATE INJECTOR; SAMPLE INTRODUCTION; ARGON PLASMA; MONODISPERSE DROPLETS; FLAME SPECTROMETRY; MASS-SPECTROMETER; OPTICAL-EMISSION; ICP-OES; TRANSPORT AB The injection of a single micrometer-sized droplet into an analytical inductively coupled plasma (ICP) perturbs the plasma and involves three sequential effects: local cooling, thermal pinching and plasma reheating. Time-resolved two-dimensional monochromatic imaging of the load-coil region of an ICP was used to monitor this sequence of plasma perturbations. When a microdroplet enters the plasma, it acts as a local heat sink and cools the nearby plasma region. The cooling effect is considered local, although the cooling volume can be large and extends 6 mm from the physical location of the vaporizing droplet The liberated hydrogen, from decomposition of water, causes a thermal pinch effect by increasing the thermal conductivity of the bulk plasma and accelerating heat loss at the plasma periphery. As a response to the heat loss, the plasma shrinks in size, which increases its power density. Plasma shrinkage starts around the same time when the microdroplet enters the plasma and lasts at least 2 ms after the droplet leaves the load-coil region. Once the vaporizing droplet passes through a particular plasma volume, that volume is reheated to an even higher temperature than under steady-state conditions. Because of the opposing effects of plasma cooling and reheating, the plasma conditions are different upstream (downward) and downstream (upward) from a vaporizing droplet cooling dominates the downstream region whereas reheating controls in the upstream domain. The boundary between the local cooling and reheating zones is sharp and is only similar to 1 mm thick. The reheating effect persists a relatively long time in the plasma, at least up to 4 ms after the droplet moves out of the load-coil region. The restoration of plasma equilibrium after the perturbation induced by microdroplet injection is slow. Microdroplet injection also induces a momentary change in plasma impedance, and the impedance change was found to correlate qualitatively with the different stages of plasma perturbation. (C) 2016 Elsevier B.V. All rights reserved. C1 [Chan, George C. -Y.; Hieftje, Gary M.] Indiana Univ, Dept Chem, 800 E Kirkwood Ave, Bloomington, IN 47405 USA. [Chan, George C. -Y.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Chan, GCY (reprint author), Indiana Univ, Dept Chem, 800 E Kirkwood Ave, Bloomington, IN 47405 USA.; Chan, GCY (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM gcchan@lbl.gov FU U.S. Department of Energy [DE-FG02-98ER14890] FX This research was supported by the U.S. Department of Energy through Grant DE-FG02-98ER14890 awarded to Indiana University. NR 58 TC 0 Z9 0 U1 5 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PD JUL 1 PY 2016 VL 121 BP 55 EP 66 DI 10.1016/j.sab.2016.05.006 PG 12 WC Spectroscopy SC Spectroscopy GA DQ1MF UT WOS:000378964400008 ER PT J AU Barozzi, I Visel, A Dickel, DE AF Barozzi, Iros Visel, Axel Dickel, Diane E. TI Fishing for Function in the Human Gene Pool SO TRENDS IN GENETICS LA English DT Editorial Material ID HUMAN GENOME; VARIANTS; TRANSCRIPTION; BINDING AB Identification and characterization of causal non-coding variants in human genomes is challenging and requires substantial experimental resources. A new study by Tehranchi et al. describes a cost-effective approach for accurate mapping of molecular quantitative trait loci (QTLs) from pooled samples, a powerful way to link disease associated changes to molecular functions. C1 [Barozzi, Iros; Visel, Axel; Dickel, Diane E.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Visel, Axel] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA. [Visel, Axel] Univ Calif, Sch Nat Sci, Merced, CA USA. RP Dickel, DE (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.; Visel, A (reprint author), US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.; Visel, A (reprint author), Univ Calif, Sch Nat Sci, Merced, CA USA. EM avisel@lbl.gov; dedickel@lbl.gov RI Visel, Axel/A-9398-2009; OI Visel, Axel/0000-0002-4130-7784; Dickel, Diane/0000-0001-5497-6824 FU NHGRI NIH HHS [R01 HG003988, U54 HG006997]; NHLBI NIH HHS [R24 HL123879, UM1 HL098166]; NIDCR NIH HHS [U01 DE024427] NR 10 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE LONDON PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0168-9525 J9 TRENDS GENET JI Trends Genet. PD JUL PY 2016 VL 32 IS 7 BP 392 EP 394 DI 10.1016/j.tig.2016.05.002 PG 3 WC Genetics & Heredity SC Genetics & Heredity GA DQ1MS UT WOS:000378965700003 PM 27220646 ER PT J AU Yoon, S Nissen, S Park, D Sanford, RA Loffler, FE AF Yoon, Sukhwan Nissen, Silke Park, Doyoung Sanford, Robert A. Loffler, Frank E. TI Nitrous Oxide Reduction Kinetics Distinguish Bacteria Harboring Clade I NosZ from Those Harboring Clade II NosZ SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID LOIHICA STRAIN PV-4; WOLINELLA-SUCCINOGENES; MANAGEMENT-PRACTICES; CH4 EMISSIONS; RIBOSOMAL-RNA; N2O SINK; SOIL; DENITRIFICATION; PATHWAYS; GENES AB Bacteria capable of reduction of nitrous oxide (N2O) to N-2 separate into clade I and clade II organisms on the basis of nos operon structures and nosZ sequence features. To explore the possible ecological consequences of distinct nos clusters, the growth of bacterial isolates with either clade I (Pseudomonas stutzeri strain DCP-Ps1, Shewanella loihica strain PV-4) or clade II (Dechloromonas aromatica strain RCB, Anaeromyxobacter dehalogenans strain 2CP-C) nosZ with N2O was examined. Growth curves did not reveal trends distinguishing the clade I and clade II organisms tested; however, the growth yields of clade II organisms exceeded those of clade I organisms by 1.5- to 1.8-fold. Further, whole-cell half-saturation constants (K(s)s) for N2O distinguished clade I from clade II organisms. The apparent Ks values of 0.324 +/- 0.078 mu M for D. aromatica and 1.34 +/- 0.35 mu M for A. dehalogenans were significantly lower than the values measured for P. stutzeri (35.5 +/- 9.3 mu M) and S. loihica (7.07 +/- 1.13 mu M). Genome sequencing demonstrated that Dechloromonas denitrificans possessed a clade II nosZ gene, and a measured Ks of 1.01 +/- 0.18 mu M for N2O was consistent with the values determined for the other clade II organisms tested. These observations provide a plausible mechanistic basis for why the relative activity of bacteria with clade I nos operons compared to that of bacteria with clade II nos operons may control N2O emissions and determine a soil's N2O sink capacity. C1 [Yoon, Sukhwan; Loffler, Frank E.] Univ Tennessee, Ctr Environm Biotechnol, Knoxville, TN 37932 USA. [Yoon, Sukhwan; Nissen, Silke; Loffler, Frank E.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Yoon, Sukhwan; Park, Doyoung] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Daejeon, South Korea. [Nissen, Silke; Loffler, Frank E.] Univ Tennessee, Oak Ridge, TN USA. [Nissen, Silke; Loffler, Frank E.] Oak Ridge Natl Lab UT ORNL, JIBS, Oak Ridge, TN USA. [Nissen, Silke; Loffler, Frank E.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. [Sanford, Robert A.] Univ Illinois, Dept Geol, Urbana, IL 61801 USA. [Loffler, Frank E.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN USA. RP Yoon, S; Loffler, FE (reprint author), Univ Tennessee, Ctr Environm Biotechnol, Knoxville, TN 37932 USA.; Yoon, S; Loffler, FE (reprint author), Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA.; Yoon, S (reprint author), Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Daejeon, South Korea.; Loffler, FE (reprint author), Univ Tennessee, Oak Ridge, TN USA.; Loffler, FE (reprint author), Oak Ridge Natl Lab UT ORNL, JIBS, Oak Ridge, TN USA.; Loffler, FE (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA.; Loffler, FE (reprint author), Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN USA. EM syoon80@kaist.ac.kr; frank.loeffler@utk.edu RI Yoon, Sukhwan/I-1605-2014; Yoon, Sukhwan/E-2503-2017 OI Yoon, Sukhwan/0000-0002-9933-7054 FU U.S. Department of Energy, Office of Biological and Environmental Research, Genomic Science Program [DE-SC0006662]; National Research Foundation of Korea [2014R1A1A2058543] FX This work was supported by the U.S. Department of Energy, Office of Biological and Environmental Research, Genomic Science Program, award DE-SC0006662, and in part by the National Research Foundation of Korea, award 2014R1A1A2058543. NR 56 TC 1 Z9 1 U1 16 U2 28 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 EI 1098-5336 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JUL PY 2016 VL 82 IS 13 BP 3793 EP 3800 DI 10.1128/AEM.00409-16 PG 8 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA DO8QP UT WOS:000378048800011 PM 27084012 ER PT J AU Morrow, BM Lebensohn, RA Trujillo, CP Martinez, DT Addessio, FL Bronkhorst, CA Lookman, T Cerreta, EK AF Morrow, B. M. Lebensohn, R. A. Trujillo, C. P. Martinez, D. T. Addessio, F. L. Bronkhorst, C. A. Lookman, T. Cerreta, E. K. TI Characterization and modeling of mechanical behavior of single crystal titanium deformed by split-Hopkinson pressure bar SO INTERNATIONAL JOURNAL OF PLASTICITY LA English DT Article DE Microstructures; Twinning; Crystal plasticity; Electron microscopy; Kolsky bar ID COMMERCIALLY PURE TITANIUM; TWIN-TWIN INTERACTIONS; CLOSE-PACKED METALS; ALPHA-TITANIUM; STRAIN-RATE; DEFORMATION MECHANISMS; TEXTURE DEVELOPMENT; CONSTITUTIVE DESCRIPTION; POLYCRYSTAL PLASTICITY; HARDENING EVOLUTION AB Single crystal titanium samples were dynamically loaded using split-Hopkinson pressure bar (SHPB) and the resulting microstructures were examined. Characterization of the twins and dislocations present in the microstructure was conducted to understand the pathway for observed mechanical behavior. Electron backscatter diffraction (EBSD) was used to measure textures and quantify twinning. Microstructures were profusely twinned after loading, and twin variants and corresponding textures were different as a function of initial orientation. Focused ion beam (FIB) foils were created to analyze dislocation content using transmission electron microscopy (TEM). Large amounts of dislocations were present, indicating that plasticity was achieved through slip and twinning together. Viscoplastic self-consistent (VPSC) modeling was used to confirm the complex order of operations during deformation. The activation of different mechanisms was highly dependent upon crystal orientation. For [0001] and [10 (1) over bar1]-oriented crystals, compressive twinning was observed, followed by secondary tensile twinning. Dislocations, though prevalent in the microstructure, contributed to final texture far less than twinning. Published by Elsevier Ltd. C1 [Morrow, B. M.; Lebensohn, R. A.; Trujillo, C. P.; Martinez, D. T.; Addessio, F. L.; Bronkhorst, C. A.; Lookman, T.; Cerreta, E. K.] Los Alamos Natl Lab, POB 1663,MS G755, Los Alamos, NM 87545 USA. RP Morrow, BM (reprint author), Los Alamos Natl Lab, POB 1663,MS G755, Los Alamos, NM 87545 USA. EM morrow@lanl.gov RI Lebensohn, Ricardo/A-2494-2008; Morrow, Benjamin/F-3509-2012; OI Lebensohn, Ricardo/0000-0002-3152-9105; Morrow, Benjamin/0000-0003-1925-4302; Bronkhorst, Curt/0000-0002-2709-1964 FU NNSA of the U.S. Department of Energy [DE-AC52-06NA25396]; Campaign 2 programs FX Los Alamos National Laboratory is operated by LANS, LLC, for the NNSA of the U.S. Department of Energy under contract DE-AC52-06NA25396. Campaign 2 programs supported this work. The authors are grateful to Program Managers Rick Martineau, Russ Olson, and Sherri Bingert. LA-UR-15-26741. NR 49 TC 4 Z9 4 U1 10 U2 16 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0749-6419 EI 1879-2154 J9 INT J PLASTICITY JI Int. J. Plast. PD JUL PY 2016 VL 82 BP 225 EP 240 DI 10.1016/j.ijplas.2016.03.006 PG 16 WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA DP0PB UT WOS:000378190600012 ER PT J AU Li, HF Pan, C Zhao, SJ Liu, P Zhu, YM Rafailovich, MH AF Li, Hongfei Pan, Cheng Zhao, Sijia Liu, Ping Zhu, Yimei Rafailovich, Miriam H. TI Enhancing performance of PEM fuel cells: Using the Au nanoplatelet/Nafion interface to enable CO oxidation under ambient conditions SO JOURNAL OF CATALYSIS LA English DT Article DE PEM fuel cell; Gold nanoplatelets; CO oxidation ID SUPPORTED GOLD CATALYSTS; LOW-TEMPERATURE; CARBON-MONOXIDE; NANOPARTICLES; EXCHANGE; MOLECULES; MEMBRANES; SOLIDS; OXYGEN; SITES AB We have developed a method for fabrication of Au nanoparticle platelets which can be coated onto the Nafion membranes of polymer electrolyte membrane (PEM) fuel cells simply by Langmuir-Blodgett (LB) trough lift off from the air water interface. Incorporating the coated membranes into fuel cells with one membrane electrode assembly (MEA) enhanced the maximum power output by more than 50% when operated under ambient conditions. An enhancement of more than 200% was observed when 0.1% CO was incorporated into the H-2 input gas stream and minimal enhancement was observed when the PEM fuel cell was operated with 100% O-2 gas at the cathode, or when particles were deposited on the electrodes. Density function theory (DFT) calculations were carried out to understand the origin of improved output power. Au NPs with 3-atomic layer in height and 2 nm in size were constructed to model the experimentally synthesized Au NPs. The results indicated that the Au NPs interacted synergistically with the SO3 groups, attached at end of Nafion side chains, to reduce the energy barrier for the oxidation of CO occurring at the perimeter of the Au NPs, from 1.292 eV to 0.518 eV, enabling the reaction to occur at T < 300 K. (C) 2016 Published by Elsevier inc. C1 [Li, Hongfei; Pan, Cheng; Zhao, Sijia; Rafailovich, Miriam H.] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. [Liu, Ping] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Zhu, Yimei] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Rafailovich, MH (reprint author), SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. EM miriam.rafailovich@stonybrook.edu FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC-00112704]; PowerbridgeNY [NYSERDA29750]; SGRID3 of the Long Island Regional Economic Development Council FX Funds for research work at Brookhaven National Laboratory were provided by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-SC-00112704. DFT calculations were performed using computational resources at the Center for Functional Nanomaterials, a user facility at Brookhaven National Laboratory. The work at Stony Brook University was funded in part by PowerbridgeNY under a NYSERDA29750 grant, and by a grant from SGRID3 of the Long Island Regional Economic Development Council 2014. NR 29 TC 2 Z9 2 U1 29 U2 29 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 EI 1090-2694 J9 J CATAL JI J. Catal. PD JUL PY 2016 VL 339 BP 31 EP 37 DI 10.1016/j.jcat.2016.03.031 PG 7 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DP4GF UT WOS:000378453700005 ER PT J AU Sun, H Shen, BX Wu, D Guo, XF Li, D AF Sun, Hui Shen, Benxian Wu, Di Guo, Xiaofeng Li, Deng TI Supported Al-Ti bimetallic catalysts for 1-decene oligomerization: Activity, stability and deactivation mechanism SO JOURNAL OF CATALYSIS LA English DT Article DE Al-Ti bimetallic catalysts; 1-Decene oligomerization; Activity; Stability; Deactivation mechanism ID HOMOGENEOUS CHROMIUM CATALYSTS; SOLID ACID CATALYST; OLEFIN POLYMERIZATION; ALUMINUM-CHLORIDE; PROPYLENE POLYMERIZATION; METAL-CATALYSTS; SILICA; LUBRICANTS; COMPLEXES; ETHYLENE AB A variety of supported bimetallic catalysts were prepared through immobilization of AlCl3 and TiCl4 on different porous materials and used for the oligomerization of 1-decene in a fixed-bed reactor. The supported catalysts were characterized by various techniques including X-ray photoelectron spectroscopy (XPS), Al-27 MAS NMR, N-2 adsorption, adsorbed pyridine infrared (Py-IR), thermogravimetry and differential scanning calorimetry (TG-DSC), energy-dispersive spectrometry (EDS), and content measurement of active species. Their catalytic activity was examined and the underlying deactivation mechanism was explored. The initial catalytic activity was observed to be a linear function of the chlorine content of the supported catalyst. A catalyst using a coal-derived activated carbon support has the highest loading and exhibits the highest yield of polyalphaolefin (PAO), while a gamma-Al2O3-supported catalyst gives higher stability. In addition, thermal treatment of the gamma-Al2O3-supported catalyst results in reduced initial activity but enhanced stability. Both the loss of active species and the blockage and coverage of the pore structure by oligomers account for the deactivation of the supported catalyst. (C) 2016 Elsevier Inc. All rights reserved. C1 [Sun, Hui; Shen, Benxian; Li, Deng] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China. [Wu, Di] Univ Calif Davis, Peter A Rock Thermochem Lab, Davis, CA 95616 USA. [Wu, Di] Univ Calif Davis, NEAT ORU, Davis, CA 95616 USA. [Guo, Xiaofeng] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. RP Sun, H (reprint author), E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China. EM sunhui@ecust.edu.cn RI Wu, Di/A-3039-2014; OI Wu, Di/0000-0001-6879-321X; Guo, Xiaofeng/0000-0003-3129-493X FU National Natural Science Foundation of China [21201063]; Natural Science Foundation of Shanghai, China [16ZR1408100]; Specialized Research Foundation for the Doctoral Program of Higher Education of China [20110074120020] FX This work was financially supported by the National Natural Science Foundation of China (21201063), the Natural Science Foundation of Shanghai, China (16ZR1408100) and the Specialized Research Foundation for the Doctoral Program of Higher Education of China (20110074120020). NR 43 TC 0 Z9 0 U1 17 U2 26 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 EI 1090-2694 J9 J CATAL JI J. Catal. PD JUL PY 2016 VL 339 BP 84 EP 92 DI 10.1016/j.jcat.2016.03.023 PG 9 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DP4GF UT WOS:000378453700011 ER PT J AU Otto, T Zones, SI Iglesia, E AF Otto, Trenton Zones, Stacey I. Iglesia, Enrique TI Challenges and strategies in the encapsulation and stabilization of monodisperse Au clusters within zeolites SO JOURNAL OF CATALYSIS LA English DT Article DE Au catalyst; Stable clusters; Encapsulation; LTA zeolite; MFI zeolite; Hydrothermal synthesis; Oxidative dehydrogenation ID SUPPORTED GOLD NANOPARTICLES; WATER-GAS SHIFT; CARBON-MONOXIDE; SELECTIVE OXIDATION; CATALYTIC-ACTIVITY; THERMAL-STABILITY; METAL-CLUSTERS; CO OXIDATION; BULK GOLD; SURFACE AB This study describes successful strategies and guiding principles for the synthesis of small and monodisperse Au clusters protected against coalescence and poisoning by their uniform dispersion throughout the void space of LTA and MFI zeolites. These protocols involve hydrothermal zeolite crystallization around Au3+ precursors stabilized by mercaptosilane ligands, which prevent their premature reduction and enforce connectivity with incipient crystalline frameworks. The confining nanometer scale voids restrict cluster mobility during thermal treatment and allow the selection of reactants, products, and transition states and the exclusion of organosulfur poisons in catalytic applications based on molecular size. UV-visible spectra show that Au3+ forms Au-0 clusters in O-2 or H-2 in a narrow temperature range that sets the dynamics of nucleation and growth and thus cluster size. Reduction protocols that maintain stable temperatures at the lower end of this range lead to small clusters uniform in size (LTA: 1.3 nm, MFI: 2.0 nm; 1.06-1.09 dispersity indices) with clean and accessible surfaces, as shown by their infrared spectra upon chemisorption of CO. Their unprecedented size and monodispersity are retained during oxidative treatments (773-823 K) that sinter Au clusters on mesoporous supports. Oxidative dehydrogenation rates of small (ethanol) and large (isobutanol) alkanols and the poisoning of unprotected clusters by organosulfur titrants show that >90% of the Au surfaces reside within intracrystalline LTA and MFI voids. Their very different structures, compositions, and synthesis protocols suggest that these encapsulation strategies can be adapted readily to other zeolite frameworks with apertures too small for post synthesis exchange of Au precursors. This study illustrates how confinement favors small, uniquely stable, and monodisperse clusters, even for Au, a metal prone to cluster growth at conditions often required for its catalytic use. (C) 2016 Published by Elsevier Inc. C1 [Otto, Trenton; Iglesia, Enrique] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Zones, Stacey I.] Chevron Energy Technol Co, Richmond, CA 94804 USA. [Iglesia, Enrique] EO Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Iglesia, E (reprint author), Univ Calif Berkeley, 103 Gilman Hall, Berkeley, CA 94720 USA. EM iglesia@berkeley.edu RI Iglesia, Enrique/D-9551-2017 OI Iglesia, Enrique/0000-0003-4109-1001 FU Chevron Energy Technology Co.; ARCS Foundation Fellowship FX We gratefully acknowledge the generous financial support of the Chevron Energy Technology Co., and an ARCS Foundation Fellowship (for TO). We thank Dr. Reena Zalpuri (Electron Microscope Lab) for help with TEM instrumentation, Dr. Antonio DiPasquale (X-Ray Facility) for assistance with XRD, Professor Prashant Deshlahra for discussions on IR spectroscopy, as well as Stanley Herrmann and Alexandra Landry for review of the manuscript. NR 64 TC 2 Z9 2 U1 35 U2 69 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 EI 1090-2694 J9 J CATAL JI J. Catal. PD JUL PY 2016 VL 339 BP 195 EP 208 DI 10.1016/j.jcat.2016.04.015 PG 14 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DP4GF UT WOS:000378453700022 ER PT J AU Licht, RB Vogt, D Bell, AT AF Licht, Rachel B. Vogt, Diana Bell, Alexis T. TI The mechanism and kinetics of propene ammoxidation over alpha-bismuth molybdate SO JOURNAL OF CATALYSIS LA English DT Article DE Bismuth molybdate; Selective ammoxidation; Propene; Ammonia; Acrylonitrile ID DENSITY-FUNCTIONAL THEORY; METAL OXIDE CATALYSTS; SELECTIVE OXIDATION; PROPYLENE OXIDATION; NITROGEN INSERTION; MOLYBDENUM OXIDE; ACROLEIN; ACRYLONITRILE; COMPLEXES; AMMONIA AB Propene ammoxidation over Bi2Mo3O12 was investigated to elucidate product (acrylonitrile, acetonitrile, HCN, acrolein, N-2, etc.) formation pathways. Propene consumption rate is first order in propene and zero order in ammonia (for NH3/C3H6 = 0-2) and oxygen (for O-2/C3H6 >= 1.5) partial pressures, with an activation energy (E-a = 22 kcal/mol) comparable to that for propene oxidation, suggesting the same rate-limiting step for both reactions. We propose two N-containing species are relevant at ammoxidation conditions: adsorbed NH3 on surface Bi3+ ions that reacts with a propene derivative to form products with C-N bonds, and a few metastable M-NHx (M = Mo, Bi; x = 1, 2) groups that are very sensitive to destruction by water, but that are responsible for NH3 oxidation to N-2. A proposed reaction mechanism and model that captures the experimental trends in product distribution as a function of partial pressures and temperature are presented. (C) 2016 Elsevier Inc. All rights reserved. C1 [Bell, Alexis T.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Bell, AT (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. EM alexbell@berkeley.edu FU Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Molecular Graphics and Computation Facility at the University of California, Berkeley under National Science Foundation [CHE-0840505] FX This work was 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 Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231. Theoretical calculations were performed with the resources of the Molecular Graphics and Computation Facility at the University of California, Berkeley under National Science Foundation grant CHE-0840505. The authors would like to acknowledge Dr. Joseph Gomes with his help with the DFT calculations. The authors would also like to acknowledge Prof. T. Don Tilley, Dr. Andrew "Bean" Getsoian, Dr. Gregory Johnson, Dr. Edwin Yik, James Dombrowski, and Micah Ziegler for useful discussions. NR 48 TC 2 Z9 2 U1 15 U2 23 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 EI 1090-2694 J9 J CATAL JI J. Catal. PD JUL PY 2016 VL 339 BP 228 EP 241 DI 10.1016/j.jcat.2016.04.012 PG 14 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DP4GF UT WOS:000378453700024 ER PT J AU Im, J Yip, D Lee, J Loffler, FE AF Im, Jeongdae Yip, Dan Lee, Jaejin Loffler, Frank E. TI Simplified extraction of bisphenols from bacterial culture suspensions and solid matrices SO JOURNAL OF MICROBIOLOGICAL METHODS LA English DT Article DE Bisphenols; Adsorption; Methanol; Ultrasonic solvent extraction ID CHROMATOGRAPHY-MASS-SPECTROMETRY; GAS-CHROMATOGRAPHY; ENVIRONMENTAL FATE; PHASE EXTRACTION; WASTE-WATER; PHARMACEUTICALS; DERIVATIZATION; XENOESTROGENS AB We demonstrate the utility of a simple and fast methanol extraction method that achieves similar bisphenols recovery efficiencies from microbial culture suspensions and sediment material than more laborious and costly extraction procedures. The methanol extraction method may have broad application for the rapid analysis of hydrophobic compounds in biodegradation studies. (C) 2016 Elsevier B.V. All rights reserved. C1 [Im, Jeongdae; Yip, Dan] Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA. [Lee, Jaejin; Loffler, Frank E.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Lee, Jaejin; Loffler, Frank E.] Univ Tennessee, Ctr Environm Biotechnol, Knoxville, TN 37996 USA. [Loffler, Frank E.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. [Loffler, Frank E.] Univ Tennessee, Oak Ridge, TN 37831 USA. [Loffler, Frank E.] UT ORNL, JIBS, Oak Ridge, TN 37831 USA. [Yip, Dan; Loffler, Frank E.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Lee, Jaejin] Korea Polar Res Inst, Div Life Sci, Inchon, South Korea. RP Im, J (reprint author), Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA. EM jeongdae.im@umass.edu RI Im, Jeongdae/K-8500-2013; OI Im, Jeongdae/0000-0002-6871-5366; Lee, Jaejin/0000-0002-9793-9473 FU Polycarbonate/BPA Global Group of the American Chemistry Council (ACC), Washington, DC FX This work was supported by the Polycarbonate/BPA Global Group of the American Chemistry Council (ACC), Washington, DC. NR 17 TC 1 Z9 1 U1 2 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-7012 EI 1872-8359 J9 J MICROBIOL METH JI J. Microbiol. Methods PD JUL PY 2016 VL 126 BP 35 EP 37 DI 10.1016/j.mimet.2016.05.005 PG 3 WC Biochemical Research Methods; Microbiology SC Biochemistry & Molecular Biology; Microbiology GA DP4HR UT WOS:000378457500007 PM 27179438 ER PT J AU Horn, T Roberts, CD AF Horn, Tanja Roberts, Craig D. TI The pion: an enigma within the Standard Model SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Review DE Abelian anomaly; confinement; dynamical chiral symmetry breaking; elastic and transition form factors; pi-and K-mesons; non-perturbative QCD; parton distribution amplitudes and functions ID ELECTROMAGNETIC FORM-FACTOR; CHIRAL-SYMMETRY-BREAKING; HARD EXCLUSIVE ELECTROPRODUCTION; DYSON-SCHWINGER EQUATIONS; DEEP INELASTIC-SCATTERING; GREEN-TAKAHASHI IDENTITIES; VIRTUAL COMPTON-SCATTERING; LARGE MOMENTUM-TRANSFER; AXIAL-VECTOR CURRENT; QUANTUM CHROMODYNAMICS AB Quantum chromodynamics (QCDs) is the strongly interacting part of the Standard Model. It is supposed to describe all of nuclear physics; and yet, almost 50 years after the discovery of gluons and quarks, we are only just beginning to understand how QCD builds the basic bricks for nuclei: neutrons and protons, and the pions that bind them together. QCD is characterised by two emergent phenomena: confinement and dynamical chiral symmetry breaking (DCSB). They have far-reaching consequences, expressed with great force in the character of the pion; and pion properties, in turn, suggest that confinement and DCSB are intimately connected. Indeed, since the pion is both a Nambu-Goldstone boson and a quark-antiquark bound-state, it holds a unique position in nature and, consequently, developing an understanding of its properties is critical to revealing some very basic features of the Standard Model. We describe experimental progress toward meeting this challenge that has been made using electromagnetic probes, highlighting both dramatic improvements in the precision of charged-pion form factor data that have been achieved in the past decade and new results on the neutral-pion transition form factor, both of which challenge existing notions of pion structure. We also provide a theoretical context for these empirical advances, which begins with an explanation of how DCSB works to guarantee that the pion is un-naturally light; but also, nevertheless, ensures that the pion is the best object to study in order to reveal the mechanisms that generate nearly all the mass of hadrons. In canvassing advances in these areas, our discussion unifies many aspects of pion structure and interactions, connecting the charged-pion elastic form factor, the neutral-pion transition form factor and the pion's leading-twist parton distribution amplitude. It also sketches novel ways in which experimental and theoretical studies of the charged-kaon electromagnetic form factor can provide significant contributions. Importantly, it appears that recent predictions for the large-Q(2) behaviour of the charged-pion form factor can be tested by experiments planned at the upgraded 12 GeV Jefferson Laboratory. Those experiments will extend precise charged-pion form factor data up to momentum transfers that it now appears may be large enough to serve in validating factorisation theorems in QCD. If so, they may expose the transition between the non-perturbative and perturbative domains and thereby reach a goal that has driven hadro-particle physics for around 35 years. C1 [Horn, Tanja] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA. [Horn, Tanja] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Roberts, Craig D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Horn, T (reprint author), Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.; Horn, T (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM hornt@jlab.org; cdroberts@anl.gov FU NSF [PHY-1306227]; US Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] FX Both the results described and the insights drawn herein are fruits from collaborations we have joined with many colleagues and friends throughout the world; and we are very grateful to them all. This work was supported in part by NSF grant PHY-1306227; and by the US Department of Energy, Office of Science, Office of Nuclear Physics, under contract no. DE-AC02-06CH11357. NR 267 TC 9 Z9 9 U1 4 U2 7 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 2016 VL 43 IS 7 AR 073001 DI 10.1088/0954-3899/43/7/073001 PG 45 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DP2AK UT WOS:000378290300003 ER PT J AU Yao, XJ Mehen, T Muller, B AF Yao, Xiaojun Mehen, Thomas Muller, Berndt TI An effective field theory approach to the stabilization of Be-8 in a QED plasma SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Article DE effective field theory; QED plasma; alpha-alpha resonant scattering; bound state ID ALPHA-ALPHA SCATTERING; LIGHT; WMAP AB We use effective field theory to study the alpha-alpha resonant scattering in a finite-temperature QED plasma. The static plasma screening effect causes the resonance state Be-8 to live longer and eventually leads to the formation of a bound state when m(D) greater than or similar to 0.3 MeV. We speculate that this effect may have implications on the rates of cosmologically and astrophysically relevant nuclear reactions involving alpha particles. C1 [Yao, Xiaojun; Mehen, Thomas; Muller, Berndt] Duke Univ, Dept Phys, Durham, NC 27708 USA. [Muller, Berndt] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Yao, XJ (reprint author), Duke Univ, Dept Phys, Durham, NC 27708 USA. EM xiaojun.yao@duke.edu FU US Department of Energy research grant [DE-FG02-05ER41367, DE-FG02-05ER41368] FX We thank Sean Fleming, Robert Pisarski and Johann Rafelski for very helpful discussions. BM and XY are supported by US Department of Energy research grant DE-FG02-05ER41367, TM is supported by US Department of Energy research grant DE-FG02-05ER41368. TM and XY would like to thank the theory group at Brookhaven National Laboratory for their hospitality during the completion of this work. NR 22 TC 0 Z9 0 U1 0 U2 0 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 2016 VL 43 IS 7 AR 07LT02 DI 10.1088/0954-3899/43/7/07LT02 PG 11 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DP2AK UT WOS:000378290300002 ER PT J AU King, CB Hong, YL Dehart, SP Defeo, PA Pan, R AF King, Caleb B. Hong, Yili Dehart, Stephanie P. Defeo, Patrick A. Pan, Rong TI Planning Fatigue Tests for Polymer Composites SO JOURNAL OF QUALITY TECHNOLOGY LA English DT Article DE Fatigue Lifetime Model; Large-Sample Approximate Variance; Log-Normal; Optimal Design; Tolerance Limits; Weibull ID LIFE TEST PLANS; LIMIT MODEL; DISTRIBUTIONS; WEIBULL; CURVES AB Polymer-composite materials have become key components in the transportation and alternative-energy industries, as they are more lightweight than homogeneous metals and alloys yet still retain comparable levels of strength and endurance. To understand how these polymer composites perform after long periods of use, material manufacturers commonly use cyclic fatigue testing. The current industrial standards include test plans with balanced designs and equal spacing of stress levels which, in many cases, are not the most statistically efficient designs. In this paper, we present optimal designs with the goal of minimizing the weighted sum of asymptotic variances of an estimated lifetime percentile at selected design stress levels. These designs are based on a physical model adapted from the fatigue literature, which is more suitable for modeling cyclic fatigue of polymer composites than the model used in the current industrial standards. We provide a comparison between our optimal designs and the traditional designs currently in use and ultimately propose a compromise design for use by practitioners in order to ensure robustness against deviations from the underlying assumptions. C1 [King, Caleb B.] Sandia Natl Labs, Stat Sci Grp, Albuquerque, NM 87123 USA. [Hong, Yili] Virginia Tech, Dept Stat, Blacksburg, VA 24061 USA. [Dehart, Stephanie P.] Eastman Chem Co, Appl Stat Grp, Kingsport, TN 37662 USA. [Defeo, Patrick A.] DuPont Co Inc, Appl Stat Grp, Wilmington, DE 19803 USA. [Pan, Rong] Arizona State Univ, Sch CIDSE, Tempe, AZ 85287 USA. RP Hong, YL (reprint author), Virginia Tech, Dept Stat, Blacksburg, VA 24061 USA. EM calking@sandia.gov; yilihong@vt.edu; stephaniedehart@eastman.com; rong.pan@asu.edu FU National Science Foundation [CMMI-1068933]; DuPont Young Professor Grant FX We would like to thank the Editor, an associate editor, and two referees for their valuable comments that lead to improvement of this paper. The Advanced Research Computing at Virginia Tech is acknowledged for providing computational resources. The work by Hong and King was supported by the National Science Foundation under Grant CMMI-1068933 to Virginia Tech and the 2011 DuPont Young Professor Grant. NR 27 TC 0 Z9 0 U1 3 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 2016 VL 48 IS 3 BP 227 EP 245 PG 19 WC Engineering, Industrial; Operations Research & Management Science; Statistics & Probability SC Engineering; Operations Research & Management Science; Mathematics GA DP4JV UT WOS:000378463100002 ER PT J AU Hamada, MS AF Hamada, Michael S. TI A Bayesian Approach to Multivariate Measurement System Assessment SO JOURNAL OF QUALITY TECHNOLOGY LA English DT Article DE Gauge R & R Study; Markov-Chain Monte Carlo; Multivariate Normal Distribution; Random Effects; Repeatability; Reproducibility; Scaled Inverse Wishart Prior Distribution; Uncertainty; Variance Components AB This article considers system assessment for multivariate measurements and presents a Bayesian approach to analyzing gauge R & R study data. The evaluation of variances for univariate measurement becomes the evaluation of covariance matrices for multivariate measurements. The Bayesian approach ensures positive definite estimates of the covariance matrices and easily provides their uncertainty. Moreover, various measurement-system assessment criteria are easily evaluated. The approach is illustrated with data from a real gauge R & R study as well as simulated data. C1 [Hamada, Michael S.] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RP Hamada, MS (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM hamada@lanl.gov NR 17 TC 0 Z9 0 U1 7 U2 7 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 2016 VL 48 IS 3 BP 246 EP 252 PG 7 WC Engineering, Industrial; Operations Research & Management Science; Statistics & Probability SC Engineering; Operations Research & Management Science; Mathematics GA DP4JV UT WOS:000378463100003 ER PT J AU Perdikaris, P Insley, JA Grinberg, L Yu, Y Papka, ME Karniadakis, GE AF Perdikaris, Paris Insley, Joseph A. Grinberg, Leopold Yu, Yue Papka, Michael E. Karniadakis, George Em. TI Visualizing multiphysics, fluid-structure interaction phenomena in intracranial aneurysms SO PARALLEL COMPUTING LA English DT Article DE Fluid-structure interactions; Blood flow; Cerebral aneurysms; High performance computing; Parallel visualization ID NONLINEAR ELASTICITY AB This work presents recent advances in visualizing multi-physics, fluid-structure interaction (FSI) phenomena in cerebral aneurysms. Realistic FSI simulations produce very large and complex data sets, yielding the need for parallel data processing and visualization. Here we present our efforts to develop an interactive visualization tool which enables the visualization of such FSI simulation data. Specifically, we present a ParaView-NekTar interface that couples the ParaView-visualization engine with NekTar's parallel libraries, which are employed for the calculation of derived fields in both the fluid and solid domains with spectral accuracy. This interface allows the flexibility of independently choosing the resolution for visualizing both the volume data and the surface data from each of the solid and fluid domains, which significantly facilitates the visualization of complex structures under large deformations. The animation of the fluid and structure data is synchronized in time, while the ParaView-NekTar interface enables the visualization of different fields to be superimposed, e.g. fluid jet and structural stress, to better understand the interactions in this multi-physics environment. Such visualizations are key towards elucidating important biophysical interactions in health and disease, as well as disseminating the insight gained from our simulations and further engaging the medical community in this effort of bringing computational science to the bedside. (C) 2015 Elsevier B.V. All rights reserved. C1 [Perdikaris, Paris] MIT, Dept Mech Engn, Cambridge, MA 02139 USA. [Karniadakis, George Em.] Brown Univ, Div Appl Math, Providence, RI 02912 USA. [Grinberg, Leopold] IBM TJ Watson Res Ctr, Cambridge, MA 02142 USA. [Yu, Yue] Lehigh Univ, Dept Math, 27 Mem Dr W, Bethlehem, PA 18015 USA. [Insley, Joseph A.; Papka, Michael E.] Argonne Natl Lab, Argonne Leadership Comp Facil, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Karniadakis, GE (reprint author), Brown Univ, Div Appl Math, Providence, RI 02912 USA. EM George_Karniadakis@brown.edu FU Air Force Office of Scientific Research [FA9550-12-1-0463]; National Institutes of Health [1U01HL116323-01]; DOE Office of Science [DE-AC02-06CH11357] FX An award of computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. This research used resources of the Argonne Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC02-06CH11357. This work also received partial support by the Air Force Office of Scientific Research under Grant no. FA9550-12-1-0463, and the National Institutes of Health under Grant no. 1U01HL116323-01. Last but not least, we thank Kitware Inc. for support in developing and distributing the NekTar-ParaView plug-in. NR 9 TC 0 Z9 0 U1 2 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-8191 EI 1872-7336 J9 PARALLEL COMPUT JI Parallel Comput. PD JUL PY 2016 VL 55 SI SI BP 9 EP 16 DI 10.1016/j.parco.2015.10.016 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA DP4KG UT WOS:000378464200003 ER PT J AU O'Leary, P Ahrens, J Jourdain, S Wittenburg, S Rogers, DH Petersen, M AF O'Leary, Patrick Ahrens, James Jourdain, Sebastien Wittenburg, Scott Rogers, David H. Petersen, Mark TI Cinema image-based in situ analysis and visualization of MPAS-ocean simulations SO PARALLEL COMPUTING LA English DT Article DE High performance computing; In situ; Image-based; Analysis and visualization ID VOLUME DATA AB Due to power and I/O constraints associated with extreme scale scientific simulations, in situ analysis and visualization will become a critical component to scientific exploration and discovery. Current analysis and visualization options at extreme scale are presented in opposition: write files to disk for interactive, exploratory analysis, or perform in situ analysis to save data products about phenomena that a scientists knows about in advance. In this paper, we, demonstrate extreme scale visualization of MPAS-Ocean simulations leveraging a third option based on Cinema, which is a novel framework for highly interactive, image-based in situ analysis and visualization that promotes exploration. (C) 2015 Elsevier B.V. All rights reserved. C1 [O'Leary, Patrick; Jourdain, Sebastien; Wittenburg, Scott] Kitware Inc, 1800 Old Pecos Trail,Suite G, Santa Fe, NM 87505 USA. [Ahrens, James; Rogers, David H.; Petersen, Mark] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RP O'Leary, P (reprint author), Kitware Inc, 1800 Old Pecos Trail,Suite G, Santa Fe, NM 87505 USA. EM patrick.oleary@kitware.com OI Petersen, Mark/0000-0001-7170-7511 FU DOE Office of Nuclear Energy Fast Track SBIR award [DE-SC0010119]; ASCR Program, Office of Science and ASC, Department of Energy (DOE) FX This work was funded by Dr. Lucy Nowell, ASCR Program, Office of Science and ASC, Department of Energy (DOE). Patrick O'Leary, Sebastien Jourdain and Scott Wittenburg were also funded by a DOE Office of Nuclear Energy Fast Track SBIR award DE-SC0010119. NR 13 TC 0 Z9 0 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-8191 EI 1872-7336 J9 PARALLEL COMPUT JI Parallel Comput. PD JUL PY 2016 VL 55 SI SI BP 43 EP 48 DI 10.1016/j.parco.2015.10.005 PG 6 WC Computer Science, Theory & Methods SC Computer Science GA DP4KG UT WOS:000378464200007 ER PT J AU Haberkorn, N Coulter, Y Condo, AM Granell, P Golmar, F Ha, HS Moon, SH AF Haberkorn, N. Coulter, Y. Condo, A. M. Granell, P. Golmar, F. Ha, H. S. Moon, S. H. TI Vortex creep and critical current densities J(c) in a 2 mu m thick SmBa2Cu3O7-d coated conductor with mixed pinning centers grown by co-evaporation SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY LA English DT Article DE coated conductors; vortex dynamics; glassy exponents ID HIGH-TEMPERATURE SUPERCONDUCTORS; FLUX-CREEP; FILMS; WIRES; YBA2CU3O7-X AB We report the critical current densities J(c) and flux creep rates in a 2 mu m thick SmBa2Cu3O7-delta coated conductor produced by co-evaporation. The sample presents strong pinning produced by correlated disorder (CD) (boundaries between growth islands, dislocations and twin boundaries) as well as random nanoparticles. Correlated pinning along the c-axis was evidenced due to the appearance of a large peak in the angular critical current, centered at H parallel to c. The analysis of the critical current density J(c) (with the magnetic field applied parallel (H parallel to c) and at 45 degrees of the c-axis (H parallel to 45 degrees)) indicates that CD assists pinning throughout the temperature range. For all temperatures and at both angles the in-field dependence of J(c) exhibits a power-law behavior. The contribution of CD drops when the field is rotated to intermediate angles between the c axis and a-b axis (i. e. H parallel to 45 degrees), which derives in a reduction of the absolute Jc value and poorer in-field dependences. The flux creep rate depends on the angle and its values remain approximately constant within the power-law regime. For H parallel to c and H parallel to 45 degrees and for magnetic fields lower than 20 kOe, the flux relaxation presents characterizing glassy exponents mu = 1.70 and mu = 1.32, respectively. C1 [Haberkorn, N.; Condo, A. M.] Ctr Atom Bariloche, Consejo Nacl Invest Cient & Tecn, Av Bustillo 9500, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina. [Coulter, Y.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Granell, P.; Golmar, F.] Consejo Nacl Invest Cient & Tecn, INTI CMNB, Av Gral Paz 5445 B1650KNA, Buenos Aires, DF, Argentina. [Golmar, F.] UNSAM, Escuela Ciencia & Tecnol, Campus Miguelete 1650, Buenos Aires, DF, Argentina. [Ha, H. S.] Korea Electrotechnol Res Inst, Chang Won 641120, South Korea. [Moon, S. H.] SuNAM Co Ltd, Ansung 430817, Gyeonggi Do, South Korea. RP Haberkorn, N (reprint author), Ctr Atom Bariloche, Consejo Nacl Invest Cient & Tecn, Av Bustillo 9500, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina. EM nhaberk@cab.cnea.gov.ar RI Golmar, Federico/C-2933-2017 OI Golmar, Federico/0000-0002-4023-2899 NR 41 TC 0 Z9 0 U1 2 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-2048 EI 1361-6668 J9 SUPERCOND SCI TECH JI Supercond. Sci. Technol. PD JUL PY 2016 VL 29 IS 7 AR 075011 DI 10.1088/0953-2048/29/7/075011 PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DO9QJ UT WOS:000378121300019 ER PT J AU Emery, JM Grigoriu, MD Field, RV AF Emery, J. M. Grigoriu, M. D. Field, R. V., Jr. TI Bayesian methods for characterizing unknown parameters of material models SO APPLIED MATHEMATICAL MODELLING LA English DT Article DE Stochastic reduced order models; Bayesian method; Uncertain material parameters ID PARTIAL-DIFFERENTIAL-EQUATIONS; REDUCED-ORDER MODELS; STOCHASTIC COLLOCATION; PROBABILISTIC APPROACH; APPROXIMATIONS; COEFFICIENTS; SELECTION; GALERKIN AB A Bayesian framework is developed for characterizing the unknown parameters of probabilistic models for material properties. In this framework, the unknown parameters are viewed as random and described by their posterior distributions obtained from prior information and measurements of quantities of interest that are observable and depend on the unknown parameters. The proposed Bayesian method is applied to characterize an unknown spatial correlation of the conductivity field in the definition of a stochastic transport equation and to solve this equation by Monte Carlo simulation and stochastic reduced order models (SROMs). The Bayesian method is also employed to characterize unknown parameters of material properties for laser welds from measurements of peak forces sustained by these welds. (C) 2016 Elsevier Inc. All rights reserved. C1 [Emery, J. M.; Field, R. V., Jr.] Sandia Natl Labs, POB 5800 MS 0346, Albuquerque, NM 87185 USA. [Grigoriu, M. D.] Cornell Univ, Sch Civil & Environm Engn, 220 Hollister Hall, Ithaca, NY 14853 USA. RP Emery, JM (reprint author), Sandia Natl Labs, POB 5800 MS 0346, Albuquerque, NM 87185 USA. EM jmemery@sandia.gov; mdg12@cornell.edu; rvfield@sandia.gov OI Field, Richard/0000-0002-2765-7032; Emery, John /0000-0001-6671-4952 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 Company, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 23 TC 0 Z9 0 U1 2 U2 6 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0307-904X EI 1872-8480 J9 APPL MATH MODEL JI Appl. Math. Model. PD JUL PY 2016 VL 40 IS 13-14 BP 6395 EP 6411 DI 10.1016/j.apm.2016.01.046 PG 17 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications; Mechanics SC Engineering; Mathematics; Mechanics GA DO6VP UT WOS:000377921900014 ER PT J AU Shahrukh, H Oyedun, AO Kumar, A Ghiasi, B Kumar, L Sokhansanj, S AF Shahrukh, Hassan Oyedun, Adetoyese Olajire Kumar, Amit Ghiasi, Bahman Kumar, Linoj Sokhansanj, Shahab TI Comparative net energy ratio analysis of pellet produced from steam pretreated biomass from agricultural residues and energy crops SO BIOMASS & BIOENERGY LA English DT Article DE Agricultural residue; Energy crop; Pelletization; Process model; Steam pretreatment ID WESTERN CANADA; INFESTED WOOD; SIZE; GENERATION; LOGISTICS; PATHWAYS; QUALITY; COST; GAS AB A process model was developed to determine the net energy ratio (NER) for the production of pellets from steam pretreated agricultural residue (wheat straw) and energy crops (i.e., switchgrass in this case). The NER is a ratio of the net energy output to the total net energy input from non-renewable energy sources into a system. Scenarios were developed to measure the effects of temperature and level of steam pretreatment on the NER of steam pretreated wheat straw and switchgrass pellets. The NERs for the base case at 6 kg h(-1) are 1.76 and 1.37 for steam-pretreated wheat straw and switchgrass-based pellets, respectively. The reason behind the difference is that more energy is required to dry switch grass pellets than wheat straw pellets. The sensitivity analysis for the model shows that the optimum temperature for steam pretreatment is 160 degrees C with 50% pretreatment (i.e. 50 % steam treated material is blended with the raw biomass and then pelletised). The uncertainty results for NER for steam pretreated wheat straw and switch grass pellets are 1.62 +/- 0.10 and 1.42 +/- 0.11, respectively. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Shahrukh, Hassan; Oyedun, Adetoyese Olajire; Kumar, Amit] Univ Alberta, Dept Mech Engn, Donadeo Innovat Ctr Engn 10 263, Edmonton, AB T6G 1H9, Canada. [Ghiasi, Bahman; Kumar, Linoj; Sokhansanj, Shahab] Univ British Columbia, Dept Chem & Biol Engn, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada. [Sokhansanj, Shahab] Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. RP Kumar, A (reprint author), Univ Alberta, Dept Mech Engn, Donadeo Innovat Ctr Engn 10 263, Edmonton, AB T6G 1H9, Canada. EM Amit.Kumar@ualberta.ca FU BioFuelNet Canada Inc.; University of Alberta FX The authors would like to acknowledge BioFuelNet Canada Inc. (59_Kumar_West_SEES) and the University of Alberta for funding this project. Technical support during the experimental stage from the departments of Chemical and Biological Engineering and Wood Sciences, University of British Columbia, is highly appreciated. The authors would especially like to mention Dr. Jack Saddler from the University of British Columbia for his support and cooperation in carrying out steam pretreatment experiment in his lab. Astrid Blodgett is acknowledged for editorial assistance. NR 31 TC 1 Z9 1 U1 7 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0961-9534 EI 1873-2909 J9 BIOMASS BIOENERG JI Biomass Bioenerg. PD JUL PY 2016 VL 90 BP 50 EP 59 DI 10.1016/j.biombioe.2016.03.022 PG 10 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA DO4GQ UT WOS:000377740200007 ER PT J AU Lacey, JA Emerson, RM Thompson, DN Westover, TL AF Lacey, Jeffrey A. Emerson, Rachel M. Thompson, David N. Westover, Tyler L. TI Ash reduction strategies in corn stover facilitated by anatomical and size fractionation SO BIOMASS & BIOENERGY LA English DT Article DE Ash reduction; Fractionation; Mechanical separations; Preprocessing ID CARRIERE REHDER POACEAE; WHEAT-STRAW; ENZYMATIC-HYDROLYSIS; SILICA ACCUMULATION; GLUCOSE-PRODUCTION; PLANT NUTRIENT; BAMBUSOIDEAE; BIOMASS; LEAF; PRETREATMENT AB There is growing interest internationally to produce fuels from renewable biomass resources. Inorganic components of biomass feedstocks, referred to collectively as ash, damage equipment and decrease yields in thermal conversion processes, and decrease feedstock value for biochemical conversion processes. Decreasing the ash content of feedstocks improves conversion efficiency and lowers process costs. Because physiological ash is unevenly distributed in the plant, mechanical processes can be used to separate fractions of the plant based on ash content. This study focuses on the ash separation that can be achieved by separating corn stover by particle size and anatomical fraction. Baled corn stover was hand separated into anatomical fractions, ground to <19.1 mm, and size separated using six sieves ranging from 9.5 to 0.150 mm. Size fractions were analyzed for total ash content and ash composition. Particle size distributions observed for the anatomical fractions varied considerably. Cob particles were primarily 2.0 mm or greater, while most of the sheath and husk particles were 2.0 mm and smaller. Particles of leaves greater than 0.6 mm contained the greatest amount of total ash, ranging from approximately 8 to 13% dry weight of the total original material, while the fractions with particles smaller than 0.6 mm contained less than 2% of the total ash of the original material. Based on the overall ash content and the elemental ash, specific anatomical and size fractions can be separated to optimize the feedstocks being delivered to biofuels conversion processes and minimize the need for more expensive ash reduction treatments. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Lacey, Jeffrey A.; Thompson, David N.] EG&G Idaho Inc, Idaho Natl Engn Lab, Biol & Chem Proc, POB 1625, Idaho Falls, ID 83401 USA. [Emerson, Rachel M.; Westover, Tyler L.] EG&G Idaho Inc, Idaho Natl Engn Lab, Biofuels & Renewable Energy Technol, POB 1625, Idaho Falls, ID 83401 USA. RP Lacey, JA (reprint author), EG&G Idaho Inc, Idaho Natl Engn Lab, Biol & Chem Proc, POB 1625, Idaho Falls, ID 83401 USA. EM Jeffrey.lacey@inl.gov; Rachel.emerson@inl.gov; David.Thompson@inl.gov; Tyler.Westover@inl.gov OI Lacey, Jeffrey/0000-0002-2349-1354 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office, under DOE Idaho Operations Office [DE-AC07-05ID14517] FX This work is supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office, under DOE Idaho Operations Office Contract DE-AC07-05ID14517. NR 42 TC 2 Z9 2 U1 8 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0961-9534 EI 1873-2909 J9 BIOMASS BIOENERG JI Biomass Bioenerg. PD JUL PY 2016 VL 90 BP 173 EP 180 DI 10.1016/j.biombioe.2016.04.006 PG 8 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA DO4GQ UT WOS:000377740200021 ER PT J AU Collette, NM Yee, CS Hum, NR Murugesh, DK Christiansen, BA Xie, LQ Economides, AN Manilay, JO Robling, AG Loots, GG AF Collette, Nicole M. Yee, Cristal S. Hum, Nicholas R. Murugesh, Deepa K. Christiansen, Blaine A. Xie, LiQin Economides, Aris N. Manilay, Jennifer O. Robling, Alexander G. Loots, Gabriela G. TI Sostdc1 deficiency accelerates fracture healing by promoting the expansion of periosteal mesenchymal stem cells SO BONE LA English DT Article DE Sostdc1; Wise; Ectodin; Sost-like; Usag-1; Sost; Wnt signaling; Periosteum; Bone regeneration; Fracture repair ID SENSITIZATION-ASSOCIATED GENE-1; BMP ANTAGONIST; BONE-MARROW; WNT; SCLEROSTIN; WISE; DIFFERENTIATION; SHH; INHIBITOR; FEEDBACK AB Loss of Sostdc1, a growth factor paralogous to Sost, causes the formation of ectopic incisors, fused molars, abnormal hair follicles, and resistance to kidney disease. Sostdc1 is expressed in the periosteum, a source of osteoblasts, fibroblasts and mesenchymal progenitor cells, which are critically important for fracture repair. Here, we investigated the role of Sostdc1 in bone metabolism and fracture repair. Mice lacking Sostdc1 (Sostdc1(-/-)) had a low bone mass phenotype associated with loss of trabecular bone in both lumbar vertebrae and in the appendicular skeleton. In contrast, Sostdc1(-/-) cortical bone measurements revealed larger bones with higher BMD, suggesting that Sostdc1 exerts differential effects on cortical and trabecular bone. Mid-diaphyseal femoral fractures induced in Sostdc1(-/-) mice showed that the periosteal population normally positive for Sostdc1 rapidly expands during periosteal thickening and these cells migrate into the fracture callus at 3 days post fracture. Quantitative analysis of mesenchymal stem cell (MSC) and osteoblast populations determined that MSCs express Sostdc1, and that Sostdc1(-/-) 5 day calluses harbor >2-fold more MSCs than fractured wildtype controls. Histologically a fraction of Sostdc1-positive cells also expressed nestin and alpha-smooth muscle actin, suggesting that Sostdc1 marks a population of osteochondral progenitor cells that actively participate in callus formation and bone repair. Elevated numbers of MSCs in D5 calluses resulted in a larger, more vascularized cartilage callus at day 7, and a more rapid turnover of cartilage with significantly more remodeled bone and a thicker cortical shell at 21 days post fracture. These data support accelerated or enhanced bone formation/remodeling of the callus in Sostdc1 mice, suggesting that Sostdc1 may promote and maintain mesenchymal stem cell quiescence in the periosteum. (C) 2016 The Authors. Published by Elsevier Inc. C1 [Collette, Nicole M.; Yee, Cristal S.; Hum, Nicholas R.; Murugesh, Deepa K.; Loots, Gabriela G.] Lawrence Livermore Natl Lab, Biol & Biotechnol Div, 7000 East Ave,L-452, Livermore, CA 94550 USA. [Yee, Cristal S.; Manilay, Jennifer O.; Loots, Gabriela G.] Univ Calif Merced, Sch Nat Sci, Mol & Cell Biol Unit, Merced, CA USA. [Christiansen, Blaine A.] Univ Calif Davis, Med Ctr, Sacramento, CA 95817 USA. [Xie, LiQin; Economides, Aris N.] Regeneron Pharmaceut Inc, 777 Old Saw Mill River Rd, Tarrytown, NY 10591 USA. [Robling, Alexander G.] Indiana Univ, Indianapolis, IN 46204 USA. RP Loots, GG (reprint author), Lawrence Livermore Natl Lab, Biol & Biotechnol Div, 7000 East Ave,L-452, Livermore, CA 94550 USA. EM loots1@llnl.gov OI Economides, Aris/0000-0002-6508-8942 FU NIH [DK075730]; LLNL LDRD ER [11-ERD-060]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We would like to thank the National Institutes of Health (NIH) Knock-Out Mouse Program (KOMP) and Regeneron for providing the Sostdc1 knockout mice. We are also grateful to David Gravano for his assistance with FACS analysis. NMC, CSY, DKM and GGL were supported in part by NIH grant DK075730. NMC and GGL were also supported in part by LLNL LDRD ER (11-ERD-060). 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 40 TC 1 Z9 1 U1 2 U2 5 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 8756-3282 EI 1873-2763 J9 BONE JI Bone PD JUL PY 2016 VL 88 BP 20 EP 30 DI 10.1016/j.bone.2016.04.005 PG 11 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA DO6WV UT WOS:000377925100003 PM 27102547 ER PT J AU Hong, LX Zhou, N Feng, W Khanna, N Fridley, D Zhao, YQ Sandholt, K AF Hong, Lixuan Zhou, Nan Feng, Wei Khanna, Nina Fridley, David Zhao, Yongqiang Sandholt, Kaare TI Building stock dynamics and its impacts on materials and energy demand in China SO ENERGY POLICY LA English DT Article DE Building floor space; Annual new construction; Retrofit; Materials; Energy demand ID CLIMATE-CHANGE; RESIDENTIAL BUILDINGS; RENEWABLE ENERGY; CONSTRUCTION; ENVELOPES; EMISSIONS AB China hosts a large amount of building stocks, which is nearly 50 billion square meters. Moreover, annual new construction is growing fast, representing half of the world's total. The trend is expected to continue through the year 2050. Impressive demand for new residential and commercial construction, relative shorter average building lifetime, and higher material intensities have driven massive domestic production of energy intensive building materials such as cement and steel. This paper developed a bottom-up building stock turnover model to project the growths, retrofits and retirements of China's residential and commercial building floor space from 2010 to 2050. It also applied typical material intensities and energy intensities to estimate building materials demand and energy consumed to produce these building materials. By conducting scenario analyses of building lifetime, it identified significant potentials of building materials and energy demand conservation. This study underscored the importance of addressing building material efficiency, improving building lifetime and quality, and promoting compact urban development to reduce energy and environment consequences in China. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Hong, Lixuan] Chongqing Univ, Sch Urban Construct & Environm Engn, Chongqing 400045, Peoples R China. [Hong, Lixuan] Chongqing Univ, Joint Int Res Lab Green Bldg & Built Environm, Minist Educ, Chongqing 400045, Peoples R China. [Zhou, Nan; Feng, Wei; Khanna, Nina; Fridley, David] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Zhao, Yongqiang; Sandholt, Kaare] China Natl Renewable Energy Ctr, 11 Muxidibeili Jia, Beijing 100038, Peoples R China. RP Hong, LX (reprint author), Chongqing Univ, Sch Urban Construct & Environm Engn, Chongqing 400045, Peoples R China.; Hong, LX (reprint author), Chongqing Univ, Joint Int Res Lab Green Bldg & Built Environm, Minist Educ, Chongqing 400045, Peoples R China. EM lixuan.hong@gmail.com FU China Sustainable Energy Program of the Energy Foundation; Rocky Mountain Institute; China National Renewable Energy Center; UK Children's Investment Fund Foundation FX We are grateful to the China Sustainable Energy Program of the Energy Foundation, Rocky Mountain Institute, China National Renewable Energy Center and UK Children's Investment Fund Foundation for funding this work. We would like to thank all colleagues from the Rocky Mountain Institute and the Energy Research Institute of the National Development and Reform Commission who provided valuable comments for this research. NR 55 TC 0 Z9 0 U1 8 U2 9 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4215 EI 1873-6777 J9 ENERG POLICY JI Energy Policy PD JUL PY 2016 VL 94 BP 47 EP 55 DI 10.1016/j.enpol.2016.03.024 PG 9 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA DO4AU UT WOS:000377725000007 ER PT J AU Gonzalez-Mejia, AM Eason, TN Cabezas, H AF Gonzalez-Mejia, Alejandra M. Eason, Tarsha N. Cabezas, Heriberto TI System learning approach to assess sustainability and forecast trends in regional dynamics: The San Luis Basin study, Colorado, USA SO ENVIRONMENTAL MODELLING & SOFTWARE LA English DT Article DE Artificial neural network; Fisher information; Forecast; Prediction; Baseline scenario; Sustainability; Regional system ID ARTIFICIAL NEURAL-NETWORKS; FISHER INFORMATION; INDICATORS; FUTURE AB This paper presents a methodology that combines the power of an Artificial Neural Network and Information Theory to forecast variables describing the condition of a regional system. The novelty and strength of this approach is in the application of Fisher information, a key method in Information Theory, to preserve trends in the historical data and prevent over fitting projections. The methodology was applied to demographic, environmental, food and energy consumption, and agricultural production in the San Luis Basin regional system in Colorado, U.S.A. These variables are important for tracking conditions in human and natural systems. However, available data are often so far out of date that they limit the ability to manage these systems. Results indicate that the approaches developed provide viable tools for forecasting outcomes with the aim of assisting management toward sustainable trends. This methodology is also applicable for modeling different scenarios in other dynamic systems. Published by Elsevier Ltd. C1 [Gonzalez-Mejia, Alejandra M.; Eason, Tarsha N.; Cabezas, Heriberto] US EPA, Sustainable Technol Div, Natl Risk Management Res Lab, Off Res & Dev, 26 W Martin Luther King Dr, Cincinnati, OH 45268 USA. [Gonzalez-Mejia, Alejandra M.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. [Gonzalez-Mejia, Alejandra M.] Bangor Univ, Bangor, Gwynedd, Wales. [Gonzalez-Mejia, Alejandra M.] Ser Cymru Natl Res Network Low Carbon Energy & En, Sch Environm Nat Resources & Geog, Bangor, Gwynedd, Wales. RP Cabezas, H (reprint author), US EPA, Sustainable Technol Div, Natl Risk Management Res Lab, Off Res & Dev, 26 W Martin Luther King Dr, Cincinnati, OH 45268 USA. EM gonzalez.alejandra@epa.gov; eason.tarsha@epa.gov; cabezas.heriberto@epa.gov NR 53 TC 1 Z9 1 U1 2 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1364-8152 EI 1873-6726 J9 ENVIRON MODELL SOFTW JI Environ. Modell. Softw. PD JUL PY 2016 VL 81 BP 1 EP 11 DI 10.1016/j.envsoft.2016.03.002 PG 11 WC Computer Science, Interdisciplinary Applications; Engineering, Environmental; Environmental Sciences SC Computer Science; Engineering; Environmental Sciences & Ecology GA DO4CJ UT WOS:000377729100001 ER PT J AU Snider, JL Collins, GD Whitaker, J Chapman, KD Horn, P AF Snider, John L. Collins, Guy D. Whitaker, Jared Chapman, Kent D. Horn, Patrick TI The impact of seed size and chemical composition on seedling vigor, yield, and fiber quality of cotton in five production environments SO FIELD CROPS RESEARCH LA English DT Article DE Seedling vigor; Seed mass; Seed composition; Lint yield; Gossypium hirsutum ID GOSSYPIUM-HIRSUTUM L; GERMPLASM COLLECTION; EMERGENCE; CULTIVARS; DENSITY; GERMINATION; TOLERANCE; GROWTH AB Seed mass and oil content of the quiescent cotton seed are positively associated with seedling vigor. In contrast, seed size has been negatively associated with lint yield due to selection for cultivars with greater lint percent. The current study addressed the hypothesis that planting seed mass and total oil + protein calorie content of the quiescent cotton seed would be strongly predictive of seedling vigor across most field conditions and that the impact of seed traits on yield would be dependent upon yield environment. When considered in each yield environment, seedling vigor was positively associated with seed size and the total oil + protein calorie content per seed in four out five environments tested. Regression analysis of cultivar mean oil + protein kcal content per seed versus seedling vigor across all environments indicated a strong, positive relationship between the two parameters (r(2) = 0.65). Although lint percent was positively correlated with lint yield in every environment, planting seed mass and calorie content were not correlated with lint yield in four of the five environments tested or when cultivar means for lint yield and seed characteristics were averaged across all environments. Thus, it is concluded that individual planting seed mass and total energy content for oil + protein are strong predictors of early seedling vigor. Furthermore, selecting commercially available cultivars with characteristics indicative of seedling vigor does not appear to limit lint yield in most environments tested. (C) 2016 Elsevier B.V. All rights reserved. C1 [Snider, John L.; Whitaker, Jared] Univ Georgia, Dept Crop & Soil Sci, 115 Coastal Way, Tifton, GA 31794 USA. [Collins, Guy D.] N Carolina State Univ, Dept Crop Sci, Upper Coastal Plains Res Stn, 2811 Nobles Mill Pond Rd, Rocky Mount, NC 27801 USA. [Chapman, Kent D.] Univ N Texas, Dept Biol Sci, Denton, TX 76203 USA. [Horn, Patrick] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. RP Snider, JL (reprint author), Univ Georgia, Dept Crop & Soil Sci, 115 Coastal Way, Tifton, GA 31794 USA. EM jlsnider@uga.edu OI Chapman, Kent/0000-0003-0489-3072 FU Georgia Cotton Commission; Cotton Incorporated FX The authors thank the Georgia Cotton Commission and Cotton Incorporated for providing financial support of this project. We also thank Lola Sexton, Jenna Pitts, Becca Carroll, and Chandler Rowe for their assistance. NR 35 TC 0 Z9 0 U1 11 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-4290 EI 1872-6852 J9 FIELD CROP RES JI Field Crop. Res. PD JUL PY 2016 VL 193 BP 186 EP 195 DI 10.1016/j.fcr.2016.05.002 PG 10 WC Agronomy SC Agriculture GA DO4GG UT WOS:000377739200018 ER PT J AU Harris, K White, D Melanson, D Samson, C Daley, TM AF Harris, Kyle White, Don Melanson, Dave Samson, Claire Daley, Thomas M. TI Feasibility of time-lapse VSP monitoring at the Aquistore CO2 storage site using a distributed acoustic sensing system SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL LA English DT Article DE VSP; DAS; Aquistore; Monitoring; Seismic; CO2 ID MIGRATION; ARRAY AB The Aquistore carbon storage project, located near Estevan, Saskatchewan, Canada, aims to employ 3D time-lapse seismic techniques to monitor injected CO2 at depths of 3100-3350m. During early stages of the injection schedule, vertical seismic profiling (VSP) will primarily be utilized, given its inherent advantages in imaging close to the borehole. Distributed acoustic sensing (DAS) possesses the capability of providing a cost-efficient, high-resolution alternative to traditional geophone methods in VSP. In this study, an evaluation is made of baseline DAS and traditional geophone VSP data from an observation well located 150 m away from the injection well. Comparative images are analyzed for quantities of injected CO2, ranging from 27 kt to 330 kt to determine the visibility of the CO2 plume over time. The study demonstrated that DAS VSP is a feasible technique for reservoir monitoring at the Aquistore site. The CO2 plume should be visible near the borehole after 90 days (27 kt of CO2) of injection, with increasing clarity over a three-year duration. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Harris, Kyle; Samson, Claire] Carleton Univ, Dept Earth Sci, 1125 Colonel Dr, Ottawa, ON K1S 5B6, Canada. [White, Don; Melanson, Dave] Geol Survey Canada, NRCan, 601 Booth St Ottawa, Ottawa, ON K1A 0E8, Canada. [Daley, Thomas M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS 74R-316C, Berkeley, CA 94720 USA. RP Harris, K (reprint author), Carleton Univ, Dept Earth Sci, 1125 Colonel Dr, Ottawa, ON K1S 5B6, Canada. EM kyle.harris@carleton.ca; don.white@canada.ca; davemelanson@cmail.carleton.ca; clairesamson@cunet.carleton.ca; tmdaley@lbl.gov RI Daley, Thomas/G-3274-2015 OI Daley, Thomas/0000-0001-9445-0843 FU Carbon Storage Program, U.S. DOE, Assistant Secretary for Fossil Energy, Office of Clean Coal and Carbon Management through the National Energy Technology Laboratory, of the U.S. Department of Energy [DE-AC02-05CH11231] FX The authors would like to thank the Petroleum Technology Research Centre and Kyle Worth in particular for project management, and SaskPower. We would also like to acknowledge J. A. Hole for the use of the 3D eikonal solver. Brian Roberts, Lisa Roach and Michelle Robertson are thanked for their fieldwork at Aquistore. The seismic data were acquired by Silixa, Schlumberger Carbon Services, Tesla Exploration, Geospace Technologies and the Geological Survey of Canada. Funding for LBNL was provided through the Carbon Storage Program, U.S. DOE, Assistant Secretary for Fossil Energy, Office of Clean Coal and Carbon Management through the National Energy Technology Laboratory, of the U.S. Department of Energy, under contract No. DE-AC02-05CH11231. We would also like to thank Chevron for their contributions. This is publication 20150496 of the Geological Survey of Canada. NR 36 TC 1 Z9 1 U1 2 U2 3 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 2016 VL 50 BP 248 EP 260 DI 10.1016/j.ijggc.2016.04.016 PG 13 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering, Environmental SC Science & Technology - Other Topics; Energy & Fuels; Engineering GA DO8AF UT WOS:000378003700023 ER PT J AU Xiao, T McPherson, B Pan, F Esser, R Jia, W Bordelon, A Bacon, D AF Xiao, Ting McPherson, Brian Pan, Feng Esser, Rich Jia, Wei Bordelon, Amanda Bacon, Diana TI Potential chemical impacts of CO2 leakage on underground source of drinking water assessed by quantitative risk analysis SO INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL LA English DT Article DE CO2 leakage; USDWs; Groundwater quality; Risk analysis ID CARBON SEQUESTRATION; GROUNDWATER RESOURCES; GEOCHEMICAL IMPACTS; WELL CEMENT; NEW-MEXICO; AQUIFERS; SITE; MECHANISMS; CAPACITY; POROSITY AB Many geologic carbon storage site options include not only excellent storage reservoirs bounded by effective seal layers, but also Underground Sources of Drinking Water (USDWs). An effective risk assessment and mitigation plan provides maximum protection for USDWs, to respect not only current policy but also to accommodate likely future USDW-specific regulatory protections. The goal of this study is to quantify possible risks to USDWs, specifically risks associated with chemical impacts on USDWs. Reactive transport models involve tremendous computational expense. Therefore, a secondary purpose of this study is to develop, calibrate and test reduced order models specifically for assessing risks of USDW chemical impacts by CO2 leakage from a storage reservoir. In order to achieve these goals, a geochemical model was developed to interpret changes in water chemistry following CO2 intrusion. A response surface methodology (RSM) based on these geochemical simulations was used to quantify associated risks. The case study example for this analysis is the Ogallala aquifer overlying the Farnsworth unit (FWU), an active commercial-scale CO2-enhanced oil recovery field. Specific objectives of this study include: (1) to understand how CO2 leakage is likely to influence geochemical processes in aquifer sediments; (2) to quantify potential risks to the Ogallala groundwater aquifer due to CO2 leakage from the FWU oil reservoir; and (3) to identify water chemistry factors for early detection criteria. Results indicate that the leakage rate would most likely range between 10-(14)-10-(10) kg/(m(2) year) for typical and likely leakage pathway permeability ranges. Within this range of CO2 leakage rate, groundwater quality is not likely to be significantly impacted. The worst-case scenario yields trace metal concentrations approximately twice as much as the initial value, but these predicted concentrations are still less than one-fifth of regulation-stipulated maximum contamination levels and do not exceed the no-impact thresholds. Finally, the results of this analysis suggest that pH may be an effective geochemical indicator of CO2 leakage. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Xiao, Ting; McPherson, Brian; Pan, Feng; Esser, Rich; Jia, Wei; Bordelon, Amanda] Univ Utah, Dept Civil & Environm Engn, Salt Lake City, UT 84112 USA. [Xiao, Ting; McPherson, Brian; Pan, Feng; Esser, Rich; Jia, Wei] Univ Utah, Energy & Geosci Inst, Salt Lake City, UT 84108 USA. [Bacon, Diana] Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. RP Xiao, T (reprint author), Univ Utah, Dept Civil & Environm Engn, Salt Lake City, UT 84112 USA. EM txiao@egi.utah.edu FU U.S. Department of Energy; NETL (National Energy Technology Laboratory) [DE-FC26-05NT42591] FX This study is supported by the U.S. Department of Energy and NETL (National Energy Technology Laboratory), contract DE-FC26-05NT42591. NR 53 TC 4 Z9 4 U1 3 U2 13 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 2016 VL 50 BP 305 EP 316 DI 10.1016/j.ijggc.2016.04.009 PG 12 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Engineering, Environmental SC Science & Technology - Other Topics; Energy & Fuels; Engineering GA DO8AF UT WOS:000378003700026 ER PT J AU Hall, R Murdoch, L Falta, R Looney, B Riha, B AF Hall, R. Murdoch, L. Falta, R. Looney, B. Riha, B. TI Evaluation of liquid aerosol transport through porous media SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE Aerosol; Vadose zone; Model; Remediation; Contamination; Oxidation; Bioremediation; Transport; Oil ID DEEP-BED FILTRATION; COLLECTION; PARTICLES; MODEL AB Application of remediation methods in contaminated vadose zones has been hindered by an inability to effectively distribute liquid- or solid-phase amendments. Injection as aerosols in a carrier gas could be a viable method for achieving useful distributions of amendments in unsaturated materials. The objectives of this work were to characterize radial transport of aerosols in unsaturated porous media, and to develop capabilities for predicting results of aerosol injection scenarios at the field-scale. Transport processes were investigated by conducting lab-scale injection experiments with radial flow geometry, and predictive capabilities were obtained by developing and validating a numerical model for simulating coupled aerosol transport, deposition, and multi-phase flow in porous media. Soybean oil was transported more than 2 m through sand by injecting it as micron-scale aerosol droplets. Oil saturation in the sand increased with time to a maximum of 0.25, and decreased with radial distance in the experiments. The numerical analysis predicted the distribution of oil saturation with only minor calibration. The results indicated that evolution of oil saturation was controlled by aerosol deposition and subsequent flow of the liquid oil, and simulation requires including these two coupled processes. The calibrated model was used to evaluate field applications. The results suggest that amendments can be delivered to the vadose zone as aerosols, and that gas injection rate and aerosol particle size will be important controls on the process. (C) 2016 Elsevier B.V. All rights reserved. C1 [Hall, R.; Murdoch, L.; Falta, R.] Clemson Univ, Environm Engn & Earth Sci, Clemson, SC 29634 USA. [Looney, B.; Riha, B.] Savannah River Natl Lab, Aiken, SC USA. [Murdoch, L.] Clemson Univ, 445 Brackett Hall, Clemson, SC 29634 USA. RP Hall, R (reprint author), Clemson Univ, Environm Engn & Earth Sci, Clemson, SC 29634 USA. EM rhall@clemson.edu NR 24 TC 0 Z9 0 U1 2 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-7722 EI 1873-6009 J9 J CONTAM HYDROL JI J. Contam. Hydrol. PD JUL PY 2016 VL 190 BP 15 EP 28 DI 10.1016/j.jconhyd.2016.03.003 PG 14 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA DO4ED UT WOS:000377733700002 PM 27149690 ER PT J AU Park, JS Ray, AK Dawson, PR Lienert, U Miller, MP AF Park, Jun-Sang Ray, Atish K. Dawson, Paul R. Lienert, Ulrich Miller, Matthew P. TI Determination of residual stress in a microtextured alpha titanium component using high-energy synchrotron X-rays SO JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN LA English DT Article DE Residual stress; high-energy synchrotron X-rays; diffraction; lattice strain; multiscale; titanium alloy ID STRAIN POLE FIGURES; NEUTRON-DIFFRACTION; FATIGUE PERFORMANCE; ORIENTATION; DISTRIBUTIONS; ANISOTROPY; TI-6AL-4V; TEXTURE; STATE; FILMS AB A shrink-fit sample is manufactured with a Ti-8Al-1Mo-1V alloy to introduce a multiaxial residual stress field in the disk of the sample. A set of strain and orientation pole figures are measured at various locations across the disk using synchrotron high-energy X-ray diffraction. Two approaches-the traditional sin(2) Psi method and the bi-scale optimization method-are taken to determine the stresses in the disk based on the measured strain and orientation pole figures, to explore the range of solutions that are possible for the stress field within the disk. While the stress components computed using the sin(2) Psi method and the bi-scale optimization method have similar trends, their magnitudes are significantly different. It is suspected that the local texture variation in the material is the cause of this discrepancy. C1 [Park, Jun-Sang] Argonne Natl Lab, Adv Photon Source, Lemont, IL 60439 USA. [Ray, Atish K.] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L8, Canada. [Dawson, Paul R.; Miller, Matthew P.] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA. [Lienert, Ulrich] DESY, Photon Sci, Hamburg, Germany. RP Park, JS (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA. EM parkjs@aps.anl.gov RI Miller, Matthew/D-7903-2017 FU U.S. Air Force Office of Scientific Research Multi-Scale Structural Mechanics Program [FA9550-09-1-0642] FX The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the U.S. Air Force Office of Scientific Research Multi-Scale Structural Mechanics Program (contract number FA9550-09-1-0642). NR 44 TC 0 Z9 0 U1 5 U2 9 PU SAGE PUBLICATIONS LTD PI LONDON PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND SN 0309-3247 EI 2041-3130 J9 J STRAIN ANAL ENG JI J. Strain Anal. Eng. Des. PD JUL PY 2016 VL 51 IS 5 BP 358 EP 374 DI 10.1177/0309324716640419 PG 17 WC Engineering, Mechanical; Mechanics; Materials Science, Characterization & Testing SC Engineering; Mechanics; Materials Science GA DO9GR UT WOS:000378093800004 ER PT J AU Aliev, AE de Andrade, MJ Salamon, MB AF Aliev, Ali E. de Andrade, Monica Jung Salamon, Myron B. TI Paramagnetic Meissner Effect in Electrochemically Doped Indium-Tin Oxide Films SO JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM LA English DT Article DE Superconductivity; Paramagnetic Meissner effect; Vortex compression; Thin films; Electrochemical intercalation; Electrochromism ID HIGH-TEMPERATURE SUPERCONDUCTORS; DISK-SHAPED SUPERCONDUCTORS; HIGH-TC SUPERCONDUCTORS; CRITICAL-STATE; NIOBIUM DISKS; THIN-FILMS AB Transparent conductive indium-tin oxide (ITO) thin films, electrochemically intercalated with alkali (Li+, Na+, K+, Rb+, Cs+), alkali earth (Mg+2, Ca+2), or complex NH ions, show tunable superconducting transitions with dome-shaped behavior of T (c) versus electron density around the maximum at similar to 5 K. On field cooling, the transition into the superconducting state is accompanied by a paramagnetic response, i.e., an increase of magnetization, rather than the usual diamagnetic Meissner response. We provide an extensive study of this so-called paramagnetic Meissner effect (PME), using DC SQUID, transport measurements and a variety of sample sizes and growth conditions. We show that the PME in electrochemically doped ITO films results from a higher T (c) at the sample edges than at the center of disk-shaped samples, causing flux to be expelled towards the center of the disk, following the flux-compression theory of Koshelev and Larkin. Changing to the opposite spatial T (c) profile largely removes the paramagnetic response. The paramagnetic magnetization is strongly influenced by sample geometry and flux pinning conditions. The reduction of pinning defects by thermal annealing removes the paramagnetic response. An alternation of the external magnetic field restores the usual Meissner diamagnetism. C1 [Aliev, Ali E.; de Andrade, Monica Jung] Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75083 USA. [Salamon, Myron B.] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA. [Salamon, Myron B.] Los Alamos Natl Lab, MPA CMMS, POB 1663, Los Alamos, NM 87545 USA. RP Aliev, AE (reprint author), Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75083 USA. EM Ali.Aliev@utdallas.edu FU Air Force Office of Scientific Research [FA9550-09-1-0384]; Office of Naval Research [N00014-14-1-0152] FX We acknowledge helpful discussions with A. Koshelev and Y. Kapelevich. This work was partially supported by the Air Force Office of Scientific Research grant FA9550-09-1-0384 and Office of Naval Research grant N00014-14-1-0152. NR 34 TC 1 Z9 1 U1 2 U2 7 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1557-1939 EI 1557-1947 J9 J SUPERCOND NOV MAGN JI J. Supercond. Nov. Magn PD JUL PY 2016 VL 29 IS 7 BP 1793 EP 1803 DI 10.1007/s10948-016-3501-7 PG 11 WC Physics, Applied; Physics, Condensed Matter SC Physics GA DO4XQ UT WOS:000377788600014 ER PT J AU Damci-Kurt, P Kucukyavuz, S Rajan, D Atamturk, A AF Damci-Kurt, Pelin Kucukyavuz, Simge Rajan, Deepak Atamturk, Alper TI A polyhedral study of production ramping SO MATHEMATICAL PROGRAMMING LA English DT Article DE Ramping; Unit commitment; Co-generation; Production smoothing; Convex hull; Polytope; Valid inequalities; Facets; Computation ID UNIT COMMITMENT PROBLEMS; CONSTRAINTS; ALGORITHM; COSTS AB We give strong formulations of ramping constraints-used to model the maximum change in production level for a generator or machine from one time period to the next-and production limits. For the two-period case, we give a complete description of the convex hull of the feasible solutions. The two-period inequalities can be readily used to strengthen ramping formulations without the need for separation. For the general case, we define exponential classes of multi-period variable upper bound and multi-period ramping inequalities, and give conditions under which these inequalities define facets of ramping polyhedra. Finally, we present exact polynomial separation algorithms for the inequalities and report computational experiments on using them in a branch-and-cut algorithm to solve unit commitment problems in power generation. C1 [Damci-Kurt, Pelin; Kucukyavuz, Simge] Ohio State Univ, Dept Integrated Syst Engn, Columbus, OH 43210 USA. [Rajan, Deepak] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. [Atamturk, Alper] Univ Calif Berkeley, Dept Ind Engn & Operat Res, Berkeley, CA 94720 USA. RP Kucukyavuz, S (reprint author), Ohio State Univ, Dept Integrated Syst Engn, Columbus, OH 43210 USA. EM damci-kurt.1@osu.edu; kucukyavuz.2@osu.edu; rajan3@llnl.gov; atamturk@berkeley.edu OI Kucukyavuz, Simge/0000-0001-6548-9378 FU National Science Foundation [1055668, 0970180]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Office of Assistant Secretary of Defense for Research and Engineering FX Pelin Damci-Kurt and Simge Kucukyavuz are supported, in part, by the National Science Foundation Grant #1055668, and an allocation of computing time from the Ohio Supercomputer Center. Deepak Rajan's work is performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. Alper Atamturk is supported, in part, by the Office of Assistant Secretary of Defense for Research and Engineering and the National Science Foundation Grant #0970180. NR 38 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 0025-5610 EI 1436-4646 J9 MATH PROGRAM JI Math. Program. PD JUL PY 2016 VL 158 IS 1-2 BP 175 EP 205 DI 10.1007/s10107-015-0919-9 PG 31 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA DO8AB UT WOS:000378003300007 ER PT J AU Griewank, A Walther, A Fiege, S Bosse, T AF Griewank, Andreas Walther, Andrea Fiege, Sabrina Bosse, Torsten TI On Lipschitz optimization based on gray-box piecewise linearization SO MATHEMATICAL PROGRAMMING LA English DT Article DE Bundle methods; Piecewise linearity; Algorithmic differentiation; Abs-normal form; Nonsmooth Optimization ID DIFFERENTIATION AB We address the problem of minimizing objectives from the class of piecewise differentiable functions whose nonsmoothness can be encapsulated in the absolute value function. They possess local piecewise linear approximations with a discrepancy that can be bounded by a quadratic proximal term. This overestimating local model is continuous but generally nonconvex. It can be generated in its abs-normal form by a minor extension of standard algorithmic differentiation tools. Here we demonstrate how the local model can be minimized by a bundle-type method, which benefits from the availability of additional gray-box information via the abs-normal form. In the convex case our algorithm realizes the consistent steepest descent trajectory for which finite convergence was established earlier, specifically covering counterexamples where steepest descent with exact line-search famously fails. The analysis of the abs-normal representation and the design of the optimization algorithm are geared toward the general case, whereas the convergence proof so far covers only the convex case. C1 [Griewank, Andreas] Yachaytech, Sch Informat Sci, Urcuqui, Ecuador. [Walther, Andrea; Fiege, Sabrina] Univ Paderborn, Dept Math, Warburger Str 100, D-33098 Paderborn, Germany. [Bosse, Torsten] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Walther, A (reprint author), Univ Paderborn, Dept Math, Warburger Str 100, D-33098 Paderborn, Germany. EM andrea.walther@uni-paderborn.de OI Griewank, Andreas/0000-0001-9839-1473 FU U.S. Department of Energy, Office of Science [DE-AC02-06CH11357] FX We thank the anonymous referees for their valuable comments, which helped us to improve the quality of the paper. This material was based upon work supported in part by the U.S. Department of Energy, Office of Science, under Contract DE-AC02-06CH11357. NR 29 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 0025-5610 EI 1436-4646 J9 MATH PROGRAM JI Math. Program. PD JUL PY 2016 VL 158 IS 1-2 BP 383 EP 415 DI 10.1007/s10107-015-0934-x PG 33 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA DO8AB UT WOS:000378003300014 ER PT J AU Geng, HF Sale, KL Tran-Gyamfi, MB Lane, TW Yu, ET AF Geng, Haifeng Sale, Kenneth L. Tran-Gyamfi, Mary Bao Lane, Todd W. Yu, Eizadora T. TI Longitudinal Analysis of Microbiota in Microalga Nannochloropsis salina Cultures SO MICROBIAL ECOLOGY LA English DT Article DE Biosystem; Microbiota; Algae; Stability ID TROPODITHIETIC ACID BIOSYNTHESIS; MARINE ROSEOBACTER LINEAGE; BACTERIAL COMMUNITIES; PHYTOPLANKTON BLOOM; ALGAL BLOOM; OCEAN; SEA; BIOLOGY; METAGENOME; POPULATION AB Large-scale open microalgae cultivation has tremendous potential to make a significant contribution to replacing petroleum-based fuels with biofuels. Open algal cultures are unavoidably inhabited with a diversity of microbes that live on, influence, and shape the fate of these ecosystems. However, there is little understanding of the resilience and stability of the microbial communities in engineered semicontinuous algal systems. To evaluate the dynamics and resilience of the microbial communities in microalgae biofuel cultures, we conducted a longitudinal study on open systems to compare the temporal profiles of the microbiota from two multigenerational algal cohorts, which include one seeded with the microbiota from an in-house culture and the other exogenously seeded with a natural-occurring consortia of bacterial species harvested from the Pacific Ocean. From these month-long, semicontinuous open microalga Nannochloropsis salina cultures, we sequenced a time-series of 46 samples, yielding 8804 operational taxonomic units derived from 9,160,076 high-quality partial 16S rRNA sequences. We provide quantitative evidence that clearly illustrates the development of microbial community is associated with microbiota ancestry. In addition, N. salina growth phases were linked with distinct changes in microbial phylotypes. Alteromonadeles dominated the community in the N. salina exponential phase whereas Alphaproteobacteria and Flavobacteriia were more prevalent in the stationary phase. We also demonstrate that the N. salina-associated microbial community in open cultures is diverse, resilient, and dynamic in response to environmental perturbations. This knowledge has general implications for developing and testing design principles of cultivated algal systems. C1 [Geng, Haifeng; Lane, Todd W.; Yu, Eizadora T.] Sandia Natl Labs, Dept Syst Biol, 7011 East Ave, Livermore, CA 94550 USA. [Sale, Kenneth L.; Tran-Gyamfi, Mary Bao] Sandia Natl Labs, Dept Biomass Sci & Convers Technol, 7011 East Ave, Livermore, CA 94550 USA. [Yu, Eizadora T.] Univ Philippines, Inst Chem, Natl Sci Complex, Diliman Quezon City 1101, Philippines. RP Lane, TW (reprint author), Sandia Natl Labs, Dept Syst Biol, 7011 East Ave, Livermore, CA 94550 USA. EM twlane@sandia.gov OI Lane, Todd/0000-0002-5816-2649 FU Laboratory Directed Research and Development Program at Sandia National Laboratories; US Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; US Department of Energy (DOE) Genomic Science Program [SCW1039] FX This work was supported by the Laboratory Directed Research and Development Program at Sandia National Laboratories, which is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Additional funding was provided by the US Department of Energy (DOE) Genomic Science Program under contract SCW1039. NR 51 TC 1 Z9 1 U1 6 U2 22 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0095-3628 EI 1432-184X J9 MICROB ECOL JI Microb. Ecol. PD JUL PY 2016 VL 72 IS 1 BP 14 EP 24 DI 10.1007/s00248-016-0746-4 PG 11 WC Ecology; Marine & Freshwater Biology; Microbiology SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Microbiology GA DO7YK UT WOS:000377998800004 PM 26956183 ER PT J AU Wang, C AF Wang, Cheng TI A joint probability approach for coincidental flood frequency analysis at ungauged basin confluences SO NATURAL HAZARDS LA English DT Article DE Flood frequency analysis; Goodness-of-fit; Joint probability; Monte Carlo simulation; Confluence point ID PEARSON TYPE-3 DISTRIBUTION; COPULA; DISTRIBUTIONS; RIVER; DURATION; VOLUME AB A reliable and accurate flood frequency analysis at the confluence of streams is of importance. Given that long-term peak flow observations are often unavailable at tributary confluences, at a practical level, this paper presents a joint probability approach (JPA) to address the coincidental flood frequency analysis at the ungauged confluence of two streams based on the flow rate data from the upstream tributaries. One case study is performed for comparison against several traditional approaches, including the position-plotting formula, the univariate flood frequency analysis, and the National Flood Frequency Program developed by US Geological Survey. It shows that the results generated by the JPA approach agree well with the floods estimated by the plotting position and univariate flood frequency analysis based on the observation data. C1 [Wang, Cheng] Iowa State Univ, Dept Agr & Biosyst Engn, Ames, IA 50010 USA. [Wang, Cheng] Argonne Natl Lab, Div Environm Sci, Lemont, IL 60521 USA. RP Wang, C (reprint author), Iowa State Univ, Dept Agr & Biosyst Engn, Ames, IA 50010 USA.; Wang, C (reprint author), Argonne Natl Lab, Div Environm Sci, Lemont, IL 60521 USA. EM wangcheng@anl.gov FU US Department of Energy [DE-AC02-06CH11357] FX Argonne National Laboratory's work was supported under US Department of Energy contract DE-AC02-06CH11357. NR 39 TC 0 Z9 0 U1 6 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0921-030X EI 1573-0840 J9 NAT HAZARDS JI Nat. Hazards PD JUL PY 2016 VL 82 IS 3 BP 1727 EP 1741 DI 10.1007/s11069-016-2265-5 PG 15 WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Water Resources SC Geology; Meteorology & Atmospheric Sciences; Water Resources GA DO4YZ UT WOS:000377792100013 ER PT J AU Tian, SL Liu, J Cowley, RE Hosseinzadeh, P Marshall, NM Yu, Y Robinson, H Nilges, MJ Blackburn, NJ Solomon, EI Lu, Y AF Tian, Shiliang Liu, Jing Cowley, Ryan E. Hosseinzadeh, Parisa Marshall, Nicholas M. Yu, Yang Robinson, Howard Nilges, Mark J. Blackburn, Ninian J. Solomon, Edward I. Lu, Yi TI Reversible S-nitrosylation in an engineered azurin SO NATURE CHEMISTRY LA English DT Article ID ZERO COPPER PROTEINS; NITRIC-OXIDE DONORS; NITROSOTHIOL FORMATION; NITROSOMONAS-EUROPAEA; PSEUDOMONAS-AERUGINOSA; SUPEROXIDE-DISMUTASE; ELECTRONIC-STRUCTURE; ACTIVE-SITE; NO; CERULOPLASMIN AB S-Nitrosothiols are known as reagents for NO storage and transportation and as regulators in many physiological processes. Although the S-nitrosylation catalysed by haem proteins is well known, no direct evidence of S-nitrosylation in copper proteins has been reported. Here, we report reversible insertion of NO into a copper-thiolate bond in an engineered copper centre in Pseudomonas aeruginosa azurin by rational design of the primary coordination sphere and tuning its reduction potential by deleting a hydrogen bond in the secondary coordination sphere. The results not only provide the first direct evidence of S-nitrosylation of Cu(II)-bound cysteine in metalloproteins, but also shed light on the reaction mechanism and structural features responsible for stabilizing the elusive Cu(I)-S(Cys) NO species. The fast, efficient and reversible S-nitrosylation reaction is used to demonstrate its ability to prevent NO inhibition of cytochrome bo(3) oxidase activity by competing for NO binding with the native enzyme under physiologically relevant conditions. C1 [Tian, Shiliang; Liu, Jing; Marshall, Nicholas M.; Nilges, Mark J.; Lu, Yi] Univ Illinois, Dept Chem, 600 South Mathews Ave, Urbana, IL 61801 USA. [Cowley, Ryan E.; Solomon, Edward I.] Stanford Univ, Dept Chem, Stanford, CA 94305 USA. [Hosseinzadeh, Parisa; Lu, Yi] Univ Illinois, Dept Biochem, 600 South Mathews Ave, Urbana, IL 61801 USA. [Yu, Yang; Lu, Yi] Univ Illinois, Ctr Biophys & Computat Biol, 600 South Mathews Ave, Urbana, IL 61801 USA. [Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Blackburn, Ninian J.] Oregon Hlth & Sci Univ, Inst Environm Hlth, Portland, OR 97239 USA. RP Lu, Y (reprint author), Univ Illinois, Dept Chem, 600 South Mathews Ave, Urbana, IL 61801 USA.; Solomon, EI (reprint author), Stanford Univ, Dept Chem, Stanford, CA 94305 USA.; Lu, Y (reprint author), Univ Illinois, Dept Biochem, 600 South Mathews Ave, Urbana, IL 61801 USA.; Lu, Y (reprint author), Univ Illinois, Ctr Biophys & Computat Biol, 600 South Mathews Ave, Urbana, IL 61801 USA.; Blackburn, NJ (reprint author), Oregon Hlth & Sci Univ, Inst Environm Hlth, Portland, OR 97239 USA. EM blackbni@ohsu.edu; edward.solomon@stanford.edu; yi-lu@illinois.edu RI Lu, Yi/B-5461-2010 OI Lu, Yi/0000-0003-1221-6709 FU US National Science Foundation [CHE 14-13328]; National Institutes of Health (NIH) [DK31450, GM054803]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]; DOE Office of Biological and Environmental Research; NIH; National Institute of General Medical Sciences (NIGMS) [P41GM103393] FX This material is based on work supported by the US National Science Foundation (award no. CHE 14-13328 to Y.L.) and the National Institutes of Health (NIH award no. DK31450 to E.I.S. and award no. GM054803 to N.J.B.). The authors thank H. Matsumura and P. Moenne-Loccoz for performing an initial investigation using resonance Raman spectroscopy, Z. Ding for providing E. coli cytochrome bo3 oxidase and K. Hwang for discussions and revisions of the manuscript. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences (contract no. DE-AC02-76SF00515). The SSRL Structural Molecular Biology Program is supported by the DOE Office of Biological and Environmental Research and by the NIH and the National Institute of General Medical Sciences (NIGMS, including P41GM103393). The contents of this publication are solely the responsibility of the authors and do not necessarily represent the official views of NIGMS or NIH. NR 52 TC 1 Z9 1 U1 9 U2 26 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1755-4330 EI 1755-4349 J9 NAT CHEM JI Nat. Chem. PD JUL PY 2016 VL 8 IS 7 BP 670 EP 677 DI 10.1038/nchem.2489 PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA DP1WP UT WOS:000378280400010 PM 27325093 ER PT J AU Riss, A Paz, AP Wickenburg, S Tsai, HZ De Oteyza, DG Bradley, AJ Ugeda, MM Gorman, P Jung, HS Crommie, MF Rubio, A Fischer, FR AF Riss, Alexander Perez Paz, Alejandro Wickenburg, Sebastian Tsai, Hsin-Zon De Oteyza, Dimas G. Bradley, Aaron J. Ugeda, Miguel M. Gorman, Patrick Jung, Han Sae Crommie, Michael F. Rubio, Angel Fischer, Felix R. TI Imaging single-molecule reaction intermediates stabilized by surface dissipation and entropy SO NATURE CHEMISTRY LA English DT Article ID ATOMIC-FORCE MICROSCOPY; SCANNING TUNNELING MICROSCOPE; TERMINAL ALKYNES; CHEMICAL-STRUCTURE; METAL-SURFACES; NOBLE-METAL; POLYMERIZATION; IDENTIFICATION; DIMERIZATION; HYDROCARBON AB Chemical transformations at the interface between solid/liquid or solid/gaseous phases of matter lie at the heart of key industrial-scale manufacturing processes. A comprehensive study of the molecular energetics and conformational dynamics that underlie these transformations is often limited to ensemble-averaging analytical techniques. Here we report the detailed investigation of a surface-catalysed cross-coupling and sequential cyclization cascade of 1,2-bis( 2-ethynyl phenyl)ethyne on Ag(100). Using non-contact atomic force microscopy, we imaged the single-bond-resolved chemical structure of transient metastable intermediates. Theoretical simulations indicate that the kinetic stabilization of experimentally observable intermediates is determined not only by the potential-energy landscape, but also by selective energy dissipation to the substrate and entropic changes associated with key transformations along the reaction pathway. The microscopic insights gained here pave the way for the rational design and control of complex organic reactions at the surface of heterogeneous catalysts. C1 [Riss, Alexander; Wickenburg, Sebastian; Tsai, Hsin-Zon; Bradley, Aaron J.; Ugeda, Miguel M.; Jung, Han Sae; Crommie, Michael F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Riss, Alexander] Vienna Univ Technol, Inst Appl Phys, A-1040 Vienna, Austria. [Perez Paz, Alejandro; Rubio, Angel] Univ Basque Country, Nanobio Spect Grp, San Sebastian 20018, Spain. [Perez Paz, Alejandro; Rubio, Angel] Univ Basque Country, ETSF, San Sebastian 20018, Spain. [Wickenburg, Sebastian; Crommie, Michael F.; Fischer, Felix R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [De Oteyza, Dimas G.] Donostia Int Phys Ctr, San Sebastian 20018, Spain. [De Oteyza, Dimas G.; Ugeda, Miguel M.] Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain. [De Oteyza, Dimas G.] Univ Basque Country, Ctr Phys Mat, CSIC, Ctr Fis Mat, San Sebastian 20018, Spain. [Ugeda, Miguel M.] CIC NanoGUNE, San Sebastian 20018, Spain. [Jung, Han Sae; Fischer, Felix R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Crommie, Michael F.; Fischer, Felix R.] Univ Calif Berkeley, Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA. [Crommie, Michael F.; Fischer, Felix R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Rubio, Angel] Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany. [Rubio, Angel] Ctr Free Electron Laser Sci CFEL, Luruper Chaussee 149, D-22761 Hamburg, Germany. [Riss, Alexander] Tech Univ Munich, Dept Phys E20, James Franck Str 1, D-85748 Garching, Germany. RP Riss, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.; Riss, A (reprint author), Vienna Univ Technol, Inst Appl Phys, A-1040 Vienna, Austria.; Rubio, A (reprint author), Univ Basque Country, Nanobio Spect Grp, San Sebastian 20018, Spain.; Rubio, A (reprint author), Univ Basque Country, ETSF, San Sebastian 20018, Spain.; Crommie, MF; Fischer, FR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Fischer, FR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Crommie, MF; Fischer, FR (reprint author), Univ Calif Berkeley, Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA.; Crommie, MF; Fischer, FR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.; Rubio, A (reprint author), Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany.; Rubio, A (reprint author), Ctr Free Electron Laser Sci CFEL, Luruper Chaussee 149, D-22761 Hamburg, Germany.; Riss, A (reprint author), Tech Univ Munich, Dept Phys E20, James Franck Str 1, D-85748 Garching, Germany. EM a.riss@tum.de; crommie@berkeley.edu; angel.rubio@mpsd.mpg.de; ffischer@berkeley.edu RI DONOSTIA INTERNATIONAL PHYSICS CTR., DIPC/C-3171-2014; Moreno Ugeda, Miguel/N-3006-2016; de Oteyza, Dimas/H-5955-2013; Rubio, Angel/A-5507-2008; nanoGUNE, CIC/A-2623-2015; CSIC-UPV/EHU, CFM/F-4867-2012; OI de Oteyza, Dimas/0000-0001-8060-6819; Rubio, Angel/0000-0003-2060-3151; Riss, Alexander/0000-0002-3212-7925 FU US Department of Energy, Office of Basic Energy Sciences Nanomachine Program [DE-AC02-05CH11231]; Office of Naval Research BRC Program; European Research Council Advanced Grant DYNamo [ERC-2010-AdG-267374]; Grupos Consolidados UPV/EHU del Gobierno Vasco [IT-578-13]; Austrian Science Fund (FWF) [J3026-N16]; Ayuda para la Especializacion de Personal Investigador del Vicerrectorado de Investigacion de la [UPV/EHU-2013]; Miller Institute for Basic Research in Science of the University of California at Berkeley (Miller Visiting Research Professor program); [FIS2013-46159-C3-1-P] FX Research supported by the US Department of Energy, Office of Basic Energy Sciences Nanomachine Program under contract No. DE-AC02-05CH11231 (STM and nc-AFM instrumentation development, AFM imaging), the Office of Naval Research BRC Program (molecular synthesis, characterization and STM imaging), the European Research Council Advanced Grant DYNamo No. ERC-2010-AdG-267374 (computer resources and support), Spanish Grant No. FIS2013-46159-C3-1-P (MD calculations) and Grupos Consolidados UPV/EHU del Gobierno Vasco No. IT-578-13 (DFTB calculations). A.Ri. acknowledges fellowship support from the Austrian Science Fund (FWF) No. J3026-N16. A.P.P. acknowledges fellowship support from the Ayuda para la Especializacion de Personal Investigador del Vicerrectorado de Investigacion de la UPV/EHU-2013. A.Ru. acknowledges fellowship support from the Miller Institute for Basic Research in Science of the University of California at Berkeley (Miller Visiting Research Professor program). We thank P. Jelinek and P. Hapala for their help with the nc-AFM simulations and D. J. Mowbray for useful discussions. NR 47 TC 9 Z9 9 U1 30 U2 66 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1755-4330 EI 1755-4349 J9 NAT CHEM JI Nat. Chem. PD JUL PY 2016 VL 8 IS 7 BP 678 EP 683 DI 10.1038/NCHEM.2506 PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA DP1WP UT WOS:000378280400011 PM 27325094 ER PT J AU Luo, K Roberts, MR Hao, R Guerrini, N Pickup, DM Liu, YS Edstrom, K Guo, JH Chadwick, AV Duda, LC Bruce, PG AF Luo, Kun Roberts, Matthew R. Hao, Rong Guerrini, Niccolo Pickup, David M. Liu, Yi-Sheng Edstrom, Kristina Guo, Jinghua Chadwick, Alan V. Duda, Laurent C. Bruce, Peter G. TI Charge-compensation in 3d-transition-metal-oxide intercalation cathodes through the generation of localized electron holes on oxygen SO NATURE CHEMISTRY LA English DT Article ID LITHIUM-ION BATTERIES; X-RAY-ABSORPTION; LAYERED OXIDE LI1.20MN0.54CO0.13NI0.13O2; TRANSITION-METAL OXIDES; ANIONIC REDOX; CAPACITY; CHEMISTRY; LI1.16NI0.15CO0.19MN0.50O2; ELECTROCHEMISTRY; PARTICIPATION AB During the charging and discharging of lithium-ion-battery cathodes through the de-and reintercalation of lithium ions, electroneutrality is maintained by transition-metal redox chemistry, which limits the charge that can be stored. However, for some transition-metal oxides this limit can be broken and oxygen loss and/or oxygen redox reactions have been proposed to explain the phenomenon. We present operando mass spectrometry of O-18-labelled Li-1.2[Ni0.132+Co0.133+Mn0.544+]O-2, which demonstrates that oxygen is extracted from the lattice on charging a Li-1.2[Ni0.132+Co0.133+Mn0.544+]O-2 cathode, although we detected no O-2 evolution. Combined soft X-ray absorption spectroscopy, resonant inelastic X-ray scattering spectroscopy, X-ray absorption near edge structure spectroscopy and Raman spectroscopy demonstrates that, in addition to oxygen loss, Li+ removal is charge compensated by the formation of localized electron holes on O atoms coordinated by Mn4+ and Li+ ions, which serve to promote the localization, and not the formation, of true O-2(2-)( peroxide, O-O similar to 1.45 angstrom) species. The quantity of charge compensated by oxygen removal and by the formation of electron holes on the O atoms is estimated, and for the case described here the latter dominates. C1 [Luo, Kun; Roberts, Matthew R.; Hao, Rong; Guerrini, Niccolo; Bruce, Peter G.] Univ Oxford, Dept Mat & Chem, Parks Rd, Oxford OX1 3PH, England. [Pickup, David M.; Chadwick, Alan V.] Univ Kent, Sch Phys Sci, Canterbury CT2 7NH, Kent, England. [Liu, Yi-Sheng; Guo, Jinghua] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Edstrom, Kristina] Uppsala Univ, Dept Chem, Angstrom Lab, Box 538, SE-75121 Uppsala, Sweden. [Duda, Laurent C.] Uppsala Univ, Div Mol & Condensed Matter Phys, Dept Phys & Astron, Box 516, S-75120 Uppsala, Sweden. RP Bruce, PG (reprint author), Univ Oxford, Dept Mat & Chem, Parks Rd, Oxford OX1 3PH, England. EM peter.bruce@materials.ox.ac.uk FU Engineering and Physical Sciences Research Council; SUPERGEN program; US Department of Energy [DE-AC02-05CH11231] FX P.G.B. is indebted to the Engineering and Physical Sciences Research Council, including the SUPERGEN program, for financial support. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, US Department of Energy, under Contract No. DE-AC02-05CH11231. The authors are also grateful to A. Dent and G. Cibin for contributing to the collection of hard XAS data and R. Smith for the collection of neutron diffraction data. NR 50 TC 26 Z9 26 U1 78 U2 142 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1755-4330 EI 1755-4349 J9 NAT CHEM JI Nat. Chem. PD JUL PY 2016 VL 8 IS 7 BP 684 EP 691 DI 10.1038/NCHEM.2471 PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA DP1WP UT WOS:000378280400012 PM 27325095 ER PT J AU Seo, DH Lee, J Urban, A Malik, R Kang, S Ceder, G AF Seo, Dong-Hwa Lee, Jinhyuk Urban, Alexander Malik, Rahul Kang, ShinYoung Ceder, Gerbrand TI The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials SO NATURE CHEMISTRY LA English DT Article ID LITHIUM-ION BATTERIES; LI-1-XCO1/3NI1/3MN1/3O2 ELECTRODE SYSTEM; CHARGE COMPENSATION MECHANISM; RAY-ABSORPTION SPECTROSCOPY; HIGH-ENERGY DENSITY; ROCK-SALT STRUCTURE; HIGH-CAPACITY; ANIONIC REDOX; AB-INITIO; LICOO2 AB Lithium-ion batteries are now reaching the energy density limits set by their electrode materials, requiring new paradigms for Li+ and electron hosting in solid-state electrodes. Reversible oxygen redox in the solid state in particular has the potential to enable high energy density as it can deliver excess capacity beyond the theoretical transition-metal redox-capacity at a high voltage. Nevertheless, the structural and chemical origin of the process is not understood, preventing the rational design of better cathode materials. Here, we demonstrate how very specific local Li-excess environments around oxygen atoms necessarily lead to labile oxygen electrons that can be more easily extracted and participate in the practical capacity of cathodes. The identification of the local structural components that create oxygen redox sets a new direction for the design of high-energy-density cathode materials. C1 [Seo, Dong-Hwa; Lee, Jinhyuk; Malik, Rahul; Kang, ShinYoung; Ceder, Gerbrand] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA. [Seo, Dong-Hwa; Lee, Jinhyuk; Urban, Alexander; Ceder, Gerbrand] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Ceder, Gerbrand] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Ceder, G (reprint author), MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA.; Ceder, G (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.; Ceder, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM gceder@berkeley.edu OI Seo, Dong-Hwa/0000-0002-7200-7186 FU Umicore Specialty Oxides and Chemicals; Robert Bosch Corporation; US Department of Energy under Batteries for Advanced Transportation Technologies (BATT) Program [DE-AC02-05CH11231, 7056411]; National Science Foundation [ACI-1053575]; Office of Science of the US Department of Energy [DE-C02-05CH11231]; Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Education [2014R1A6A3A03056034]; Samsung Scholarship FX This work was supported by Robert Bosch Corporation and Umicore Specialty Oxides and Chemicals, and by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the US Department of Energy under contract no. DE-AC02-05CH11231, under the Batteries for Advanced Transportation Technologies (BATT) Program subcontract no. 7056411. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant no. ACI-1053575, and resources of the National Energy Research Scientific Computing Center (NERSC), a DOE Office of Science User Facility supported by the Office of Science of the US Department of Energy under contract no. DE-C02-05CH11231. D.-H.S. acknowledges support from the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2014R1A6A3A03056034). J.L. acknowledges financial support from a Samsung Scholarship. NR 43 TC 19 Z9 19 U1 79 U2 159 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1755-4330 EI 1755-4349 J9 NAT CHEM JI Nat. Chem. PD JUL PY 2016 VL 8 IS 7 BP 692 EP 697 DI 10.1038/NCHEM.2524 PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA DP1WP UT WOS:000378280400013 PM 27325096 ER PT J AU Banerjee, A Bridges, CA Yan, JQ Aczel, AA Li, L Stone, MB Granroth, GE Lumsden, MD Yiu, Y Knolle, J Bhattacharjee, S Kovrizhin, DL Moessner, R Tennant, DA Mandrus, DG Nagler, SE AF Banerjee, A. Bridges, C. A. Yan, J. -Q. Aczel, A. A. Li, L. Stone, M. B. Granroth, G. E. Lumsden, M. D. Yiu, Y. Knolle, J. Bhattacharjee, S. Kovrizhin, D. L. Moessner, R. Tennant, D. A. Mandrus, D. G. Nagler, S. E. TI Proximate Kitaev quantum spin liquid behaviour in a honeycomb magnet SO NATURE MATERIALS LA English DT Article ID ANTIFERROMAGNET; EXCITATIONS; CRITICALITY; ANYONS; STATE AB Quantum spin liquids (QSLs) are topological states of matter exhibiting remarkable properties such as the capacity to protect quantum information from decoherence. Whereas their featureless ground states have precluded their straightforward experimental identification, excited states are more revealing and particularly interesting owing to the emergence of fundamentally new excitations such as Majorana fermions. Ideal probes of these excitations are inelastic neutron scattering experiments. These we report here for a ruthenium-based material, alpha-RuCl3, continuing a major search (so far concentrated on iridium materials) for realizations of the celebrated Kitaev honeycomb topological QSL. Our measurements confirm the requisite strong spin-orbit coupling and low-temperature magnetic order matching predictions proximate to the QSL. We find stacking faults, inherent to the highly two-dimensional nature of the material, resolve an outstanding puzzle. Crucially, dynamical response measurements above interlayer energy scales are naturally accounted for in terms of deconfinement physics expected for QSLs. Comparing these with recent dynamical calculations involving gauge flux excitations and Majorana fermions of the pure Kitaev model, we propose the excitation spectrum of alpha-RuCl3 as a prime candidate for fractionalized Kitaev physics. C1 [Banerjee, A.; Aczel, A. A.; Stone, M. B.; Granroth, G. E.; Lumsden, M. D.; Nagler, S. E.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37830 USA. [Bridges, C. A.] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37830 USA. [Yan, J. -Q.; Mandrus, D. G.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37830 USA. [Yan, J. -Q.; Mandrus, D. G.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Li, L.; Yiu, Y.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. [Granroth, G. E.] Oak Ridge Natl Lab, Neutron Data Anal & Visualizat Div, Oak Ridge, TN 37830 USA. [Knolle, J.; Kovrizhin, D. L.] Univ Cambridge, Cavendish Lab, Dept Phys, JJ Thomson Ave, Cambridge CB3 0HE, England. [Bhattacharjee, S.; Moessner, R.] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany. [Bhattacharjee, S.] TIFR, Int Ctr Theoret Sci, Bangalore 560012, Karnataka, India. [Tennant, D. A.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37830 USA. [Nagler, S. E.] Univ Tennessee, Bredesen Ctr, Knoxville, TN 37966 USA. RP Banerjee, A; Nagler, SE (reprint author), Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37830 USA.; Nagler, SE (reprint author), Univ Tennessee, Bredesen Ctr, Knoxville, TN 37966 USA. EM banerjeea@ornl.gov; naglerse@ornl.gov RI Granroth, Garrett/G-3576-2012; Stone, Matthew/G-3275-2011; Yiu, Yuen/A-4353-2010; Tennant, David/Q-2497-2015; Nagler, Stephen/E-4908-2010; Lumsden, Mark/F-5366-2012; OI Granroth, Garrett/0000-0002-7583-8778; Stone, Matthew/0000-0001-7884-9715; Yiu, Yuen/0000-0002-1466-6191; Tennant, David/0000-0002-9575-3368; Nagler, Stephen/0000-0002-7234-2339; Lumsden, Mark/0000-0002-5472-9660; Banerjee, Arnab/0000-0002-3088-6071 FU US Department of Energy, Office of Science, Basic Energy Sciences (BES), Scientific User Facilities Division; US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division - Gordon and Betty Moore Foundation's EPiQS Initiative [GBMF4416]; DFG [SFB 1143]; Postdoc-Program of the German Academic Exchange Service (DAAD); EPSRC [EP/M007928/1]; Helmholtz Virtual Institute 'New States of Matter and their Excitations' initiative FX Research using ORNL's HFIR and SNS facilities was sponsored by the US Department of Energy, Office of Science, Basic Energy Sciences (BES), Scientific User Facilities Division. A part of the synthesis and the bulk characterization performed at ORNL was supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division (C.A.B. and J.-Q.Y.). The work at University of Tennessee was funded in part by the Gordon and Betty Moore Foundation's EPiQS Initiative through Grant GBMF4416 (D.G.M. and L.L.). The work at Dresden was in part supported by DFG grant SFB 1143 (J.K. and R.M.), and by a fellowship within the Postdoc-Program of the German Academic Exchange Service (DAAD) (J.K.). D.L.K. is supported by EPSRC Grant No. EP/M007928/1. The collaboration as a whole was supported by the Helmholtz Virtual Institute 'New States of Matter and their Excitations' initiative. We thank B. Chakoumakos for overall support in the project, and J. Chalker, J. Rau, S. Toth, G. Khaliullin and F. Ye for valuable discussions. We thank P. Whitfield from the POWGEN beamline and Z. Gai from the CNMS facility for helping with neutron diffraction and magnetic susceptibility measurements. NR 49 TC 48 Z9 48 U1 56 U2 98 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1476-1122 EI 1476-4660 J9 NAT MATER JI Nat. Mater. PD JUL PY 2016 VL 15 IS 7 BP 733 EP + DI 10.1038/NMAT4604 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA DP2UF UT WOS:000378347800022 PM 27043779 ER PT J AU Lopez-Martens, A Lauritsen, T Leoni, S Dossing, T Khoo, TL Siem, S AF Lopez-Martens, A. Lauritsen, T. Leoni, S. Dossing, T. Khoo, T. L. Siem, S. TI Population and decay of superdeformed nuclei probed by discrete and quasi-continuum gamma-ray spectroscopy SO PROGRESS IN PARTICLE AND NUCLEAR PHYSICS LA English DT Review DE Superdeformation; Gamma-ray spectroscopy; Collective levels; Statistical theory and fluctuations; Chaos in nuclear systems ID HIGH ANGULAR-MOMENTUM; WARM ROTATING NUCLEI; K-QUANTUM NUMBER; NORMAL DEFORMED STATES; HIGH-SPIN STATES; FLUCTUATION ANALYSIS; LINKING TRANSITIONS; COINCIDENCE DATA; YRAST BAND; LIFETIME MEASUREMENTS AB Nuclear superdeformation at high spin was discovered a little over 30 years ago. Since then, a large body of data has been collected on the subject and many new and interesting phenomena have been discovered. In particular, the way superdeformed states are populated and depopulated offers a unique laboratory to study rotational motion as a function of excitation energy and the evolution of nuclear structure over a large interval in energy and spin. This article focuses on the experimental techniques and methods developed to study the quasicontinuous spectra of gamma rays emitted by rapidly rotating superdeformed nuclei and presents the results regarding rotational damping, the transition from ordered to chaotic motion and quantum tunnelling in a complex environment. (C) 2016 Elsevier B.V. All rights reserved. C1 [Lopez-Martens, A.] Univ Paris 11, CNRS, IN2P3, CSNSM, Bat 104-108, F-91405 Orsay, France. [Lopez-Martens, A.] Univ Paris Saclay, Bat 104-108, F-91405 Orsay, France. [Lauritsen, T.; Khoo, T. L.] Argonne Natl Lab, Argonne, IL 60439 USA. [Leoni, S.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. [Leoni, S.] Univ Milan, Dipartimento Fis, I-20122 Milan, Italy. [Dossing, T.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Siem, S.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway. RP Lopez-Martens, A (reprint author), Univ Paris 11, CNRS, IN2P3, CSNSM, Bat 104-108, F-91405 Orsay, France.; Lopez-Martens, A (reprint author), Univ Paris Saclay, Bat 104-108, F-91405 Orsay, France. EM Araceli.Lopez-Martens@csnsm.in2p3.fr FU U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357]; CNRS/IN2P3; INFN; NBI; Norwegian Research Council FX This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357. This research used resources of the ANL/ATLAS facility, which is a DOE Office of Science User Facility. Support from the CNRS/IN2P3, INFN, NBI and the Norwegian Research Council is also acknowledged. NR 217 TC 0 Z9 0 U1 3 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0146-6410 EI 1873-2224 J9 PROG PART NUCL PHYS JI Prog. Part. Nucl. Phys. PD JUL PY 2016 VL 89 BP 137 EP 186 DI 10.1016/j.ppnp.2016.02.003 PG 50 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DO5OE UT WOS:000377831600004 ER PT J AU Granderson, J Touzani, S Custodio, C Sohn, MD Jump, D Fernandes, S AF Granderson, Jessica Touzani, Samir Custodio, Claudine Sohn, Michael D. Jump, David Fernandes, Samuel TI Accuracy of automated measurement and verification (M&V) techniques for energy savings in commercial buildings SO APPLIED ENERGY LA English DT Article DE Baseline model; Measurement and verification; Whole-building energy; Predictive performance accuracy; Building energy analysis; M&V 2.0 ID BASE-LINE MODELS AB Trustworthy savings calculations are critical to convincing investors in energy efficiency projects of the benefit and cost-effectiveness of such investments and their ability to replace or defer supply-side capital investments. However, today's methods for measurement and verification (M&V) of energy savings constitute a significant portion of the total costs of efficiency projects. They also require time-consuming manual data acquisition and often do not deliver results until years after the program period has ended. The rising availability of "smart" meters, combined with new analytical approaches to quantifying savings, has opened the door to conducting M&V more quickly and at lower cost, with comparable or improved accuracy. These meter- and software-based approaches, increasingly referred to as "M&V 2.0", are the subject of surging industry interest, particularly in the context of utility energy efficiency programs. Program administrators, evaluators, and regulators are asking how M&V 2.0 compares with more traditional methods, how proprietary software can be transparently performance tested, how these techniques can be integrated into the next generation of whole-building focused efficiency programs. This paper expands recent analyses of public-domain whole-building M&V methods, focusing on more novel M&V 2.0 modeling approaches that are used in commercial technologies, as well as approaches that are documented in the literature, and/or developed by the academic building research community. We present a testing procedure and metrics to assess the performance of whole-building M&V methods. We then illustrate the test procedure by evaluating the accuracy of ten baseline energy use models, against measured data from a large dataset of 537 buildings. The results of this study show that the already available advanced interval data baseline models hold great promise for scaling the adoption of building measured savings calculations using Advanced Metering Infrastructure (AMI) data. Median coefficient of variation of the root mean squared error (CV(RMSE)) was less than 25% for every model tested when twelve months of training data were used. With even six months of training data, median CV(RMSE) for daily energy total was under 25% for all models tested. These findings can be used to build confidence in model robustness, and the readiness of these approaches for industry uptake and adoption. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Granderson, Jessica; Touzani, Samir; Custodio, Claudine; Sohn, Michael D.; Fernandes, Samuel] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Jump, David] Quantum Energy Serv & Technol Inc, 2001 Addison St,Suite 300, Berkeley, CA 94704 USA. RP Granderson, J (reprint author), 1 Cyclotron Rd,MS 90-3111, Berkeley, CA 94720 USA. EM JGranderson@lbl.gov FU Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies Program, of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies Program, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 28 TC 2 Z9 2 U1 3 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0306-2619 EI 1872-9118 J9 APPL ENERG JI Appl. Energy PD JUL 1 PY 2016 VL 173 BP 296 EP 308 DI 10.1016/j.apenergy.2016.04.049 PG 13 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA DN7DJ UT WOS:000377235200026 ER PT J AU Cheng, MD Kabela, ED AF Cheng, Meng-Dawn Kabela, Erik D. TI Effects of downscaled high-resolution meteorological data on the PSCF identification of emission sources SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE Aerosol; Black carbon; Arctic; Climate change; WRF; Downscale ID BALANCE RECEPTOR MODEL; LONG-TERM TRENDS; BLACK CARBON; NUMERICAL COMPUTATIONS; ATMOSPHERIC TRANSPORT; WRF MODEL; CONVECTION; AEROSOL AB The Potential Source Contribution Function (PSCF) model has been successfully used for identifying regions of emission source at a long distance in this study, the PSCF model relies on backward trajectories calculated by the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. In this study, we investigated the impacts of grid resolution and Planetary Boundary Layer (PBL) parameterization (e.g., turbulent transport of pollutants) on the PSCF analysis. The Mellor-Yamada-Janjic (MYJ) and Yonsei University (YUS) parameterization schemes were selected to model the turbulent transport in the PBL within the Weather Research and Forecasting (WRF version 3.6) model. Two separate domain grid sizes (83 and 27 km) were chosen in the WRF downscaling in generating the wind data for driving the HYSPLIT calculation. The effects of grid size and PBL parameterization are important in incorporating the influence of regional and local meteorological processes such as jet streaks, blocking patterns, Rossby waves, and terrain-induced convection on the transport of pollutants by a wind trajectory. We found high resolution PSCF did discover and locate source areas more precisely than that with lower resolution meteorological inputs. The lack of anticipated improvement could also be because a PBL scheme chosen to produce the WRF data was only a local parameterization and unable to faithfully duplicate the real atmosphere on a global scale. The MYJ scheme was able to replicate PSCF source identification by those using the Reanalysis and discover additional source areas that was not identified by the Reanalysis data. A potential benefit for using high-resolution wind data in the PSCF modeling is that it could discover new source location in addition to those identified by using the Reanalysis data input. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Cheng, Meng-Dawn] Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. [Kabela, Erik D.] Oak Ridge Natl Lab, Nucl Secur & Isotope Technol Div, Oak Ridge, TN USA. RP Cheng, MD (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. EM cheng.mengdawn@gmail.com OI Cheng, Meng-Dawn/0000-0003-1407-9576 FU U.S. Department of Energy [DE-AC05-00OR22725] FX This work was unfunded and performed by the authors at their own time, there were no conflicts of interest. The authors acknowledge the Canadian Environment Canada for making the Alert data available on the NAtChem web site (http://www.ec.gc.ca/natchem/) and the Air Resources Laboratory of the National Oceanic and Atmospheric Administration for making the HYSPLIT model available online at http://ready.arl.noaa.gov/HYSPLIT.php. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. NR 28 TC 0 Z9 0 U1 6 U2 15 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 EI 1873-2844 J9 ATMOS ENVIRON JI Atmos. Environ. PD JUL PY 2016 VL 137 BP 146 EP 154 DI 10.1016/j.atmosenv.2016.04.043 PG 9 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA DN8HQ UT WOS:000377320200014 ER PT J AU Scheinker, A Scheinker, D AF Scheinker, Alexander Scheinker, David TI Bounded extremum seeking with discontinuous dithers SO AUTOMATICA LA English DT Article DE Extremum seeking; Stabilization; Unknown systems ID NONLINEAR DYNAMIC-SYSTEMS; SLIDING MODE; STABILITY; FEEDBACK; FLOW AB The analysis of discontinuous extremum seeking (ES) controllers, e.g. those applicable to digital systems, has historically been more complicated than that of continuous controllers. We establish a simple and general extension of a recently developed bounded form of ES to a general class of oscillatory functions, including functions discontinuous with respect to time, such as triangle or square waves with dead time. We establish our main results by combining a novel idea for oscillatory control with an extension of functional analytic techniques originally utilized by Kurzweil, Jarnik, Sussmann, and Liu in the late 80s and early 90s and recently studied by Dtirr et al. We demonstrate the value of the result with an application to inverter switching control. Published by Elsevier Ltd. C1 [Scheinker, Alexander] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. [Scheinker, David] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA. RP Scheinker, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM ascheink@lanl.gov; dscheink@mit.edu FU Los Alamos National Laboratory; Massachusetts Institute of Technology FX This research was supported by Los Alamos National Laboratory and the Massachusetts Institute of Technology. The material in this paper was not presented at any conference. This paper was recommended for publication in revised form by Associate Editor Raul Ordonez under the direction of Editor Miroslav Krstic. NR 50 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0005-1098 EI 1873-2836 J9 AUTOMATICA JI Automatica PD JUL PY 2016 VL 69 BP 250 EP 257 DI 10.1016/j.automatica.2016.02.023 PG 8 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA DN8EU UT WOS:000377312800027 ER PT J AU Noskov, SY Rostovtseva, TK Chamberlin, AC Teijido, O Jiang, W Bezrukov, SM AF Noskov, Sergei Yu. Rostovtseva, Tatiana K. Chamberlin, Adam C. Teijido, Oscar Jiang, Wei Bezrukov, Sergey M. TI Current state of theoretical and experimental studies of the voltage-dependent anion channel (VDAC) SO BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES LA English DT Article DE VDAC; Molecular Dynamics simulations; Brownian Dynamics simulations; Mitochondrial transport; Beta-barrel channel reconstitution; pH regulation ID FACILITATED MEMBRANE-TRANSPORT; MITOCHONDRIAL OUTER-MEMBRANE; MOLECULAR-DYNAMICS METHOD; FREE-ENERGY CALCULATIONS; REPLICA EXCHANGE METHOD; ISCHEMIA-REPERFUSION INJURY; PROTEIN-FOLDING SIMULATION; HISTOGRAM ANALYSIS METHOD; BROWNIAN DYNAMICS; ION PERMEATION AB Voltage-dependent anion channel (VDAC), the major channel of the mitochondrial outer membrane provides a controlled pathway for respiratory metabolites in and out of the mitochondria. In spite of the wealth of experimental data from structural, biochemical, and biophysical investigations, the exact mechanisms governing selective ion and metabolite transport, especially the role of titratable charged residues and interactions with soluble cytosolic proteins, remain hotly debated in the field. The computational advances hold a promise to provide a much sought-after solution to many of the scientific disputes around solute and ion transport through VDAC and hence, across the mitochondrial outer membrane. In this review, we examine how Molecular Dynamics, Free Energy, and Brownian Dynamics simulations of the large beta-barrel channel, VDAC, advanced our understanding. We will provide a short overview of non-conventional techniques and also discuss examples of how the modeling excursions into VDAC biophysics prospectively aid experimental efforts. This article is part of a Special Issue entitled: Membrane Proteins edited by J.C. Gumbart and Sergei Noskov. (C) 2016 Elsevier B.V. All rights reserved. C1 [Noskov, Sergei Yu.] Univ Calgary, Dept Biol Sci, 2500 Univ Dr N-W, Calgary, AB T2N 1N4, Canada. [Noskov, Sergei Yu.] Univ Calgary, Ctr Mol Simulat, 2500 Univ Dr N-W, Calgary, AB T2N 1N4, Canada. [Rostovtseva, Tatiana K.; Teijido, Oscar; Bezrukov, Sergey M.] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Mol Transport, NIH, Bethesda, MD 20892 USA. [Chamberlin, Adam C.] Ambry Genet, 15 Argonaut, Aliso Viejo, CA 92656 USA. [Teijido, Oscar] Inst Med Sci & Genom Med, Dept Med Epigenet, EuroEspes Sta Marta de Babio S-N, Bergondo 15165, A Coruna, Spain. [Jiang, Wei] Argonne Natl Lab, Leadership Comp Facil, 9700S Cass Ave, Lemont, IL 60439 USA. RP Noskov, SY (reprint author), Univ Calgary, Dept Biol Sci, 2500 Univ Dr N-W, Calgary, AB T2N 1N4, Canada.; Noskov, SY (reprint author), Univ Calgary, Ctr Mol Simulat, 2500 Univ Dr N-W, Calgary, AB T2N 1N4, Canada.; Rostovtseva, TK; Bezrukov, SM (reprint author), Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Mol Transport, NIH, Bethesda, MD 20892 USA. EM snoskov@ucalgary.ca; rostovtt@mail.nih.gov; bezrukos@mail.nih.gov FU NICHD/NIH; National Sciences and Engineering Research Council [RGPIN-315019]; Alberta Innovates Technical Futures Strategic Chair in BioMolecular Simulations; Canadian Foundation for Innovation; Intramural Research Program of the National Institutes of Health (NIH), Eunice Kennedy Shriver National Institute of Child Health and Human Development FX We would like to thank cordially Drs. Michael Grabe, Joshua Adelman and Om Choudray for sharing their structural data on the VDAC-ATP simulations. Drs. Wonpil Im, Benoit Roux and Pablo De Biase were instrumental in implementing, developing and extending GCMC-BD algorithms to a variety of systems providing excellent tools and advice for modeling data shown in this submission. The work in S.Y.N. lab was supported with intramural funding from NICHD/NIH and the National Sciences and Engineering Research Council (discovery grant RGPIN-315019 to S.Y.N.). S.Y.N. was supported by the Alberta Innovates Technical Futures Strategic Chair in BioMolecular Simulations. Computations were performed on the West-Grid/Compute Canada facilities and the University of Calgary TNK cluster supported by the Canadian Foundation for Innovation. The simulations of ATP transport in VDAC channel with 2D H-REMD were performed on MIRA Blue-Gene Cluster located in the Argonne National Laboratory under Discretional Director's award. T.K.R. and S.M.B. were supported by the Intramural Research Program of the National Institutes of Health (NIH), Eunice Kennedy Shriver National Institute of Child Health and Human Development. NR 141 TC 4 Z9 4 U1 5 U2 12 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0005-2736 EI 0006-3002 J9 BBA-BIOMEMBRANES JI Biochim. Biophys. Acta-Biomembr. PD JUL PY 2016 VL 1858 IS 7 SI SI BP 1778 EP 1790 DI 10.1016/j.bbamem.2016.02.026 PN B PG 13 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA DN7CP UT WOS:000377233200021 PM 26940625 ER PT J AU Chen, M Himmel, ME Wilson, DB Brady, JW AF Chen, Mo Himmel, Michael E. Wilson, David B. Brady, John W. TI Simulation studies of substrate recognition by the exocellulase CelF from Clostridium cellulolyticum SO BIOTECHNOLOGY AND BIOENGINEERING LA English DT Article DE enzyme mechanisms; enzymatic hydrolysis; MD simulations; substrate recognition; substrate binding; cellulases ID MOLECULAR-DYNAMICS SIMULATIONS; CARBOHYDRATE-BINDING MODULES; FORCE-FIELDS; TRICHODERMA-REESEI; PROCESSIVE ACTION; CRYSTAL-STRUCTURE; CELLULASE CE148F; CELLOBIOHYDROLASE; COMPLEX; CHARMM AB Molecular dynamics (MD) simulations were used to study substrate recognition by the family 48 exocellulase CelF from Clostridium cellulolyticum. It was hypothesized that residues around the entrance of the active site tunnel of this enzyme might serve to recognize and bind the substrate through an affinity for the cellulose monomer repeat unit, -d-glucopyranose. Simulations were conducted of the catalytic domain of this enzyme surrounded by a concentrated solution of -d-glucopyranose, and the full three-dimensional probability distribution for finding sugar molecules adjacent to the enzyme was calculated from the trajectory. A significant probability of finding the sugar stacked against the planar faces of Trp 310 and Trp 312 at the entrance of the active site tunnel was observed. Biotechnol. Bioeng. 2016;113: 1433-1440. (c) 2015 Wiley Periodicals, Inc. C1 [Chen, Mo; Brady, John W.] Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. [Himmel, Michael E.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO USA. [Wilson, David B.] Cornell Univ, Dept Mol Biol & Genet, Ithaca, NY 14853 USA. [Chen, Mo] Oregon Hlth & Sci Univ, Dept Biomed Engn, Portland, OR 97201 USA. [Chen, Mo] Oregon Hlth & Sci Univ, OCSSB, Portland, OR 97201 USA. RP Brady, JW (reprint author), Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. EM jwb7@cornell.edu FU U.S. Department of Energy (DOE); National Science Foundation [ACI-1053575] FX Contract grant sponsor: U.S. Department of Energy (DOE); Contract grant sponsor: National Science Foundation; Contract grant number: ACI-1053575 NR 38 TC 1 Z9 1 U1 6 U2 12 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0006-3592 EI 1097-0290 J9 BIOTECHNOL BIOENG JI Biotechnol. Bioeng. PD JUL PY 2016 VL 113 IS 7 BP 1433 EP 1440 DI 10.1002/bit.25909 PG 8 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA DO1HA UT WOS:000377527900005 PM 26693961 ER PT J AU Blanco-Martin, L Wolters, R Rutqvist, J Lux, KH Birkholzer, JT AF Blanco-Martin, Laura Wolters, Ralf Rutqvist, Jonny Lux, Karl-Heinz Birkholzer, Jens T. TI Thermal-hydraulic-mechanical modeling of a large-scale heater test to investigate rock salt and crushed salt behavior under repository conditions for heat-generating nuclear waste SO COMPUTERS AND GEOTECHNICS LA English DT Article DE Heater test; Coupled processes modeling; Benchmark; Heat-generating nuclear waste; Rock salt; Crushed salt ID SALINE MEDIA; COUPLED FLOW; GEOMECHANICS; PERMEABILITY; SIMULATION; DEFORMATION; CONVERGENCE AB The Thermal Simulation for Drift Emplacement heater test is modeled using two simulators for coupled thermal-hydraulic-mechanical processes. Results from the two simulators are in very good agreement. The comparison between measurements and numerical results is also very satisfactory, regarding temperature, drift closure and rock deformation. Concerning backfill compaction, a parameter calibration through inverse modeling was performed due to insufficient data on crushed salt reconsolidation, particularly at high temperatures. We conclude that the two simulators investigated have the capabilities to reproduce the data available, which increases confidence in their use to reliably investigate disposal of heat-generating nuclear waste in saliferous geosystems. Published by Elsevier Ltd. C1 [Blanco-Martin, Laura; Rutqvist, Jonny; Birkholzer, Jens T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, 1 Cyclotron Rd,MS 74R316C, Berkeley, CA 94720 USA. [Wolters, Ralf; Lux, Karl-Heinz] Tech Univ Clausthal, Waste Disposal & Geomech, Erzstr 20, D-38678 Clausthal Zellerfeld, Germany. RP Blanco-Martin, L (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, 1 Cyclotron Rd,MS 74R316C, Berkeley, CA 94720 USA. EM Iblancomartin@lbl.gov; ralf.wolters@tu-clausthal.de; jrutqvist@lbl.gov; karl-heinz.lux@tu-clausthal.de; jtbirkholzer@lbl.gov RI Birkholzer, Jens/C-6783-2011; Rutqvist, Jonny/F-4957-2015; Blanco Martin, Laura/G-1512-2015 OI Birkholzer, Jens/0000-0002-7989-1912; Rutqvist, Jonny/0000-0002-7949-9785; Blanco Martin, Laura/0000-0003-1794-3227 FU Used Fuel Disposition Campaign, Office of Nuclear Energy of the U.S. Department of Energy [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory; German Federal Ministry of Education and Research (BMBF) [02S9082A] FX We thank Stefan Finsterle (LBNL) for his review of a draft manuscript. Comments from two anonymous reviewers have improved the quality of this paper. Funding for this work has been 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 Lawrence Berkeley National Laboratory. Funding has also been provided by the German Federal Ministry of Education and Research (BMBF) under Contract Number 02S9082A. NR 70 TC 0 Z9 0 U1 3 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0266-352X EI 1873-7633 J9 COMPUT GEOTECH JI Comput. Geotech. PD JUL PY 2016 VL 77 BP 120 EP 133 DI 10.1016/j.compgeo.2016.04.008 PG 14 WC Computer Science, Interdisciplinary Applications; Engineering, Geological; Geosciences, Multidisciplinary SC Computer Science; Engineering; Geology GA DN8JS UT WOS:000377325600011 ER PT J AU Azad, VJ Li, C Verba, C Ideker, JH Isgor, OB AF Azad, Vahid Jafari Li, Chang Verba, Circe Ideker, Jason H. Isgor, O. Burkan TI A COMSOL-GEMS interface for modeling coupled reactive-transport geochemical processes SO COMPUTERS & GEOSCIENCES LA English DT Article DE Reactive-transport modeling; (Geo)chemical modeling; Porous media; Finite element method; Multiphysics; GEMS ID PORTLAND-CEMENT; THERMODYNAMIC PROPERTIES; POROSITY; SYSTEMS; MEDIA; FLOW; EQUILIBRIA; SIMULATION; FRAMEWORK; HYDRATION AB An interface was developed between COMSOL Multiphysics (TM) finite element analysis software and (geo) chemical modeling platform, GEMS, for the reactive-transport modeling of (geo)chemical processes in variably saturated porous media. The two standalone software packages are managed from the interface that uses a non-iterative operator splitting technique to couple the transport (COMSOL) and reaction (GEMS) processes. The interface allows modeling media with complex chemistry (e.g. cement) using GEMS thermodynamic database formats. Benchmark comparisons show that the developed interface can be used to predict a variety of reactive-transport processes accurately. The full functionality of the interface was demonstrated to model transport processes, governed by extended Nernst-Plank equation, in Class H Portland cement samples in high pressure and temperature autoclaves simulating systems that are used to store captured carbon dioxide (CO2) in geological reservoirs. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Azad, Vahid Jafari; Li, Chang; Ideker, Jason H.; Isgor, O. Burkan] Oregon State Univ, Sch Civil & Construct Engn, Corvallis, OR 97331 USA. [Verba, Circe] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA. RP Isgor, OB (reprint author), Oregon State Univ, Sch Civil & Construct Engn, Corvallis, OR 97331 USA. EM burkan.isgor@oregonstate.edu RI Isgor, Burkan/J-5981-2012; OI Isgor, Burkan/0000-0002-0554-3501; Jafari Azad, Vahid/0000-0002-9970-087X FU DOE Office of Fossil Energy under the Office of Oil and Natural Gas [RES1100426/014] FX This work was completed as part of National Energy Technology Laboratory (NETL) research for the Department of Energy's Pacific Coast Carbon Storage Initiative. The study was supported by the DOE Office of Fossil Energy, (Grant no. RES1100426/014), under the Office of Oil and Natural Gas (Energy Policy Act of 2005, Section 999 Complementary Program Research). NR 65 TC 0 Z9 0 U1 4 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0098-3004 EI 1873-7803 J9 COMPUT GEOSCI-UK JI Comput. Geosci. PD JUL PY 2016 VL 92 BP 79 EP 89 DI 10.1016/j.cageo.2016.04.002 PG 11 WC Computer Science, Interdisciplinary Applications; Geosciences, Multidisciplinary SC Computer Science; Geology GA DN8JK UT WOS:000377324800008 ER PT J AU Schramm, MP Bevelhimer, MS DeRolph, CR AF Schramm, Michael P. Bevelhimer, Mark S. DeRolph, Chris R. TI A synthesis of environmental and recreational mitigation requirements at hydropower projects in the United States SO ENVIRONMENTAL SCIENCE & POLICY LA English DT Article DE Environmental mitigation; FERC; Hydropower; Hydropower policy; Environmental flows ID FISH PASSAGE; RIVER; GENERATION; PROTECTION; OPERATION; THREATS; FUTURE; DAMS AB Environmental mitigation plays an important role in the environmentally sustainable development of hydropower resources. However, comprehensive data on mitigation required by the Federal Energy Regulatory Commission (FERC) at United States (US) hydropower projects is lacking. Therefore, our objective was to create a comprehensive database of mitigation required at non-federal hydropower projects and provide a synthesis of available mitigation data. Mitigation data was collated for over 300 plants licensed or relicensed from 1998 through 2013. We observed that the majority of FERC mitigation requirements deal with either hydrologic flows or recreation and that hydropower plants in the Pacific Northwest had the highest number of requirements. Our data indicate opportunities exist to further explore hydropower mitigation in the areas of environmental flows, fish passage, and water quality. Connecting these data with ecological outcomes, actual flow data, and larger landscape level information will be necessary to evaluate the effectiveness of mitigation and ultimately inform regulators, managers, and planners. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Schramm, Michael P.; Bevelhimer, Mark S.; DeRolph, Chris R.] Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. RP Bevelhimer, MS (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. EM bevelhimerms@ornl.gov OI Schramm, Michael/0000-0003-1876-6592 FU U.S. Department of Energy (DOE) Energy Efficiency and Renewable Energy Office, Wind and Water Power Technologies Program through Oak Ridge National Laboratory [AC05-00OR22725] FX We thank B. Pracheil and four anonymous reviewers for comments that greatly improved this manuscript. S.C. Kao provided assistance with the NHAAP database and FERC licenses. This study was funded by the U.S. Department of Energy (DOE) Energy Efficiency and Renewable Energy Office, Wind and Water Power Technologies Program through Oak Ridge National Laboratory, which is managed by UT-Battelle, LLC, for the DOE under contract DE-AC05-00OR22725. NR 40 TC 2 Z9 2 U1 4 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1462-9011 EI 1873-6416 J9 ENVIRON SCI POLICY JI Environ. Sci. Policy PD JUL PY 2016 VL 61 BP 87 EP 96 DI 10.1016/j.envsci.2016.03.019 PG 10 WC Environmental Sciences SC Environmental Sciences & Ecology GA DN8FJ UT WOS:000377314300010 ER PT J AU Byrd, AD Ivic, IR Palmer, RD Isom, BM Cheong, BL Schenkman, AD Xue, M AF Byrd, Andrew D. Ivic, Igor R. Palmer, Robert D. Isom, Bradley M. Cheong, Boon Leng Schenkman, Alexander D. Xue, Ming TI A Weather Radar Simulator for the Evaluation of Polarimetric Phased Array Performance SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article DE Radar; meteorological radar; polarimetry; radar polarimetry; phased arrays; simulation; computer simulation ID PREDICTION SYSTEM ARPS; NONHYDROSTATIC ATMOSPHERIC SIMULATION; DIFFERENTIAL REFLECTIVITY BIAS; SIZE DISTRIBUTION; PART I; MODEL; ASSIMILATION; SIGNALS; FIELDS AB A radar simulator capable of generating time series data for a polarimetric phased array weather radar has been designed and implemented. The received signals are composed from a high-resolution numerical prediction weather model. Thousands of scattering centers (SCs), each with an independent randomly generated Doppler spectrum, populate the field of view of the radar. The moments of the SC spectra are derived from the numerical weather model, and the SC positions are updated based on the 3-D wind field. In order to accurately emulate the effects of the system-induced cross-polar contamination, the array is modeled using a complete set of dual-polarization radiation patterns. The simulator offers reconfigurable element patterns and positions and access to independent time series data for each element, resulting in easy implementation of any beamforming method. It also allows for arbitrary waveform designs and is able to model the effects of quantization on waveform performance. Simultaneous, alternating, quasi-simultaneous, and pulse-to-pulse phase-coded modes of polarimetric signal transmission have been implemented. This framework allows for realistic emulation of the effects of cross-polar fields on weather observations, as well as the evaluation of possible techniques for the mitigation of those effects. C1 [Byrd, Andrew D.; Palmer, Robert D.; Cheong, Boon Leng] Univ Oklahoma, Adv Radar Res Ctr, Norman, OK 73019 USA. [Byrd, Andrew D.] Univ Oklahoma, Sch Elect & Comp Engn, Norman, OK 73019 USA. [Ivic, Igor R.] Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, Norman, OK 73072 USA. [Ivic, Igor R.] NOAA, Natl Severe Storms Lab, Norman, OK 73072 USA. [Palmer, Robert D.] Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA. [Isom, Bradley M.] Pacific NW Natl Lab, Atmospher Measurement & Data Sci, Richland, WA 99352 USA. [Schenkman, Alexander D.; Xue, Ming] Univ Oklahoma, Ctr Anal & Predict Storms, Norman, OK 73072 USA. [Xue, Ming] Univ Oklahoma, Sch Meteor, Adv Radar Res Ctr, Norman, OK 73019 USA. RP Byrd, AD (reprint author), Univ Oklahoma, Adv Radar Res Ctr, Norman, OK 73019 USA.; Byrd, AD (reprint author), Univ Oklahoma, Sch Elect & Comp Engn, Norman, OK 73019 USA. EM adbyrd@ou.edu; igor.ivic@noaa.gov RI Xue, Ming/F-8073-2011; OI Xue, Ming/0000-0003-1976-3238; Byrd, Andrew/0000-0002-2735-404X FU NOAA National Severe Storms Laboratory [NA11OAR4320072] FX This work was supported by the NOAA National Severe Storms Laboratory under Cooperative Agreement NA11OAR4320072. NR 51 TC 0 Z9 0 U1 6 U2 14 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0196-2892 EI 1558-0644 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD JUL PY 2016 VL 54 IS 7 BP 4178 EP 4189 DI 10.1109/TGRS.2016.2538179 PG 12 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA DO0OO UT WOS:000377478400035 ER PT J AU Kelbe, D van Aardt, J Romanczyk, P van Leeuwen, M Cawse-Nicholson, K AF Kelbe, David van Aardt, Jan Romanczyk, Paul van Leeuwen, Martin Cawse-Nicholson, Kerry TI Marker-Free Registration of Forest Terrestrial Laser Scanner Data Pairs With Embedded Confidence Metrics SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article DE Forestry; image registration; laser radar ID STANDING TREES; POINT-CLOUDS; LIDAR; ENVIRONMENTS; EXTRACTION; VOLUME AB Terrestrial laser scanning (TLS) has emerged as an effective tool for rapid comprehensive measurement of object structure. Registration of TLS data is an important prerequisite to overcome the limitations of occlusion. However, due to the high dissimilarity of point cloud data collected from disparate viewpoints in the forest environment, adequate marker-free registration approaches have not been developed. The majority of studies instead rely on the utilization of artificial tie points (e.g., reflective tooling balls) placed within a scene to aid in coordinate transformation. We present a technique for generating view-invariant feature descriptors that are intrinsic to the point cloud data and, thus, enable blindmarker-free registration in forest environments. To overcome the limitation of initial pose estimation, we employ a voting method to blindly determine the optimal pairwise transformation parameters, without an a priori estimate of the initial sensor pose. To provide embedded error metrics, we developed a set theory framework in which a circular transformation is traversed between disjoint tie point subsets. This provides an upper estimate of the Root Mean Square Error (RMSE) confidence associated with each pairwise transformation. Output RMSE errors are commensurate with the RMSE of input tie points locations. Thus, while the mean output RMSE = 16.3 cm, improved results could be achieved with a more precise laser scanning system. This study 1) quantifies the RMSE of the proposed marker-free registration approach, 2) assesses the validity of embedded confidence metrics using receiver operator characteristic (ROC) curves, and 3) informs optimal sample spacing considerations for TLS data collection in New England forests. While the implications for rapid, accurate, and precise forest inventory are obvious, the conceptual framework outlined here could potentially be extended to built environments. C1 [Kelbe, David; van Aardt, Jan; Romanczyk, Paul; van Leeuwen, Martin; Cawse-Nicholson, Kerry] Rochester Inst Technol, Chester F Carlson Ctr Imaging Sci, Rochester, NY 14623 USA. [Kelbe, David] Oak Ridge Natl Lab, Geog Informat Sci & Technol Grp, Oak Ridge, TN 37831 USA. [Romanczyk, Paul] Aerosp Corp, El Segundo, CA 90245 USA. [van Leeuwen, Martin] UCL, Dept Geog, London WC1E 6BT, England. [Cawse-Nicholson, Kerry] Terracor, ZA-2090 Johannesburg, South Africa. RP Kelbe, D (reprint author), Rochester Inst Technol, Chester F Carlson Ctr Imaging Sci, Rochester, NY 14623 USA.; Kelbe, D (reprint author), Oak Ridge Natl Lab, Geog Informat Sci & Technol Grp, Oak Ridge, TN 37831 USA. EM dave.kelbe@gmail.com FU National Science Foundation [DGE-1102937]; National Aeronautics and Space Administration [NNX12AQ24G]; Chester F. Carlson Center for Imaging Science at Rochester Institute of Technology FX This work was supported in part by the National Science Foundation Graduate Research Fellowship under Grant DGE-1102937, by the National Aeronautics and Space Administration under Grant NNX12AQ24G, and by the Chester F. Carlson Center for Imaging Science at Rochester Institute of Technology. NR 45 TC 2 Z9 2 U1 8 U2 18 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0196-2892 EI 1558-0644 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD JUL PY 2016 VL 54 IS 7 BP 4314 EP 4330 DI 10.1109/TGRS.2016.2539219 PG 17 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA DO0OO UT WOS:000377478400046 ER PT J AU Tong, X Edwards, J Chen, CM Shen, HW Johnson, CR Wong, PC AF Tong, Xin Edwards, John Chen, Chun-Ming Shen, Han-Wei Johnson, Chris R. Wong, Pak Chung TI View-Dependent Streamline Deformation and Exploration SO IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS LA English DT Article DE Flow visualization; streamline; white matter tracts; focus plus context; deformation; occlusion ID FLOW VISUALIZATION; FIBER TRACTOGRAPHY; FRAMEWORK AB Occlusion presents a major challenge in visualizing 3D flow and tensor fields using streamlines. Displaying too many streamlines creates a dense visualization filled with occluded structures, but displaying too few streams risks losing important features. We propose a new streamline exploration approach by visually manipulating the cluttered streamlines by pulling visible layers apart and revealing the hidden structures underneath. This paper presents a customized view-dependent deformation algorithm and an interactive visualization tool to minimize visual clutter in 3D vector and tensor fields. The algorithm is able to maintain the overall integrity of the fields and expose previously hidden structures. Our system supports both mouse and direct-touch interactions to manipulate the viewing perspectives and visualize the streamlines in depth. By using a lens metaphor of different shapes to select the transition zone of the targeted area interactively, the users can move their focus and examine the vector or tensor field freely. C1 [Tong, Xin; Chen, Chun-Ming; Shen, Han-Wei] Ohio State Univ, Dept Comp Sci & Engn, Columbus, OH 43210 USA. [Edwards, John; Johnson, Chris R.] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA. [Wong, Pak Chung] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Tong, X (reprint author), Ohio State Univ, Dept Comp Sci & Engn, Columbus, OH 43210 USA. EM tong@cse.ohio-state.edu; jedwards@sci.utah.edu; chenchu@cse.ohio-state.edu; hwshen@cse.ohio-state.edu; crj@sci.utah.edu; pak.wong@pnnl.gov FU National Science Foundation [IIS-1250752, IIS-1065025]; US Department of Energy [DE-SC0007444, DE-DC0012495, DE-AC05-76RL01830]; National Institutes of Health [P41GM103545]; [59172] FX This work was supported in part by the National Science Foundation grants IIS-1250752 and IIS-1065025; and by US Department of Energy grants DE-SC0007444, DE-DC0012495, and award 59172; and by National Institutes of Health grant P41GM103545. The Pacific Northwest National Laboratory is managed for the US Department of Energy by Battelle under Contract DE-AC05-76RL01830. NR 38 TC 0 Z9 0 U1 1 U2 2 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 1077-2626 EI 1941-0506 J9 IEEE T VIS COMPUT GR JI IEEE Trans. Vis. Comput. Graph. PD JUL PY 2016 VL 22 IS 7 BP 1788 EP 1801 DI 10.1109/TVCG.2015.2502583 PG 14 WC Computer Science, Software Engineering SC Computer Science GA DO0NI UT WOS:000377475200002 ER PT J AU Bygd, HC Bratlie, KM AF Bygd, Hannah C. Bratlie, Kaitlin M. TI The effect of chemically modified alginates on macrophage phenotype and biomolecule transport SO JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A LA English DT Article DE macrophage reprogramming; alginate modification; tissue engineering; islet encapsulation; biomolecule transport ID MECHANICAL-PROPERTIES; CELL ENCAPSULATION; GEL BEADS; IN-VITRO; MICROENCAPSULATED ISLETS; SURFACE-CHEMISTRY; FOLLOW-UP; MICROCAPSULES; RELEASE; HYDROGELS AB Macrophage (M phi) reprogramming has received significant attention in applications such as cancer therapeutics and tissue engineering where the host immune response to biomaterials is crucial in determining the success or failure of an implanted device. Polymeric systems can potentially be used to redirect infiltrating M1 M phi s toward a proangiogenic phenotype. This work exploits the concept of M phi reprogramming in the engineering of materials for improving the longevity of tissue engineering scaffolds. We have investigated the effect of 13 different chemical modifications of alginate on M phi phenotype. Markers of the M1 responsetumor necrosis factor- (TNF-) and inducible nitric oxide synthaseand the M2 responsearginasewere measured and used to determine the ability of the materials to alter M phi phenotype. It was found that some modifications were able to reduce the pro-inflammatory response of M1 M phi s, others appeared to amplify the M2 phenotype, and the results for two materials suggested they were able to reprogram a M phi population from M1 to M2. These findings were supplemented by studies done to examine the permselectivity of the materials. Diffusion of TNF- was completely prevented through some of these materials, while up to 84% was found to diffuse through others. The diffusion of insulin through the materials was statistically consistent. These results suggest that the modification of these materials might alter mass transport in beneficial ways. The ability to control polarization of M phi phenotypes with immunoprotective materials has the potential to augment the success of tissue engineering scaffolds. (c) 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1707-1719, 2016. C1 [Bygd, Hannah C.; Bratlie, Kaitlin M.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Bratlie, Kaitlin M.] Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA. [Bratlie, Kaitlin M.] Ames Natl Lab, Div Engn & Mat Sci, Ames, IA 50011 USA. RP Bratlie, KM (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.; Bratlie, KM (reprint author), Iowa State Univ, Dept Chem & Biol Engn, Ames, IA 50011 USA.; Bratlie, KM (reprint author), Ames Natl Lab, Div Engn & Mat Sci, Ames, IA 50011 USA. EM kbratlie@iastate.edu FU National Science Foundation [CBET 1227867]; Roy J. Carver Charitable Trust [13-4265]; Mike and Denise Mack faculty fellowship FX Contract grant sponsor: National Science Foundation; contract grant number: CBET 1227867; Contract grant sponsor: Roy J. Carver Charitable Trust; contract grant number: 13-4265; Contract grant sponsor: Mike and Denise Mack faculty fellowship NR 80 TC 2 Z9 2 U1 10 U2 19 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1549-3296 EI 1552-4965 J9 J BIOMED MATER RES A JI J. Biomed. Mater. Res. Part A PD JUL PY 2016 VL 104 IS 7 BP 1707 EP 1719 DI 10.1002/jbm.a.35700 PG 13 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA DO1FW UT WOS:000377524900015 PM 26939998 ER PT J AU Whalen, S Jana, S Catalini, D Overman, N Sharp, J AF Whalen, Scott Jana, Saumyadeep Catalini, David Overman, Nicole Sharp, Jeffrey TI Friction Consolidation Processing of n-Type Bismuth-Telluride Thermoelectric Material SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article DE Thermoelectric; bismuth-telluride; friction consolidation; ultrafine gain; shear processing ID HIGH-PRESSURE TORSION; DYNAMIC RECRYSTALLIZATION; EXTRUSION PROCESS; ALLOYS; PERFORMANCE; DEFORMATION; ENHANCEMENT; TEXTURE AB Refined grain sizes and texture alignment have been shown to improve transport properties in bismuth-telluride (Bi2Te3) based thermoelectric materials. In this work we demonstrate a new approach, called friction consolidation processing (FCP), for consolidating Bi2Te3 thermoelectric powders into bulk form with a high degree of grain refinement and texture alignment. FCP is a solid-state process wherein a rotating tool is used to generate severe plastic deformation within the Bi2Te3 powder, resulting in a recrystallizing flow of material. Upon cooling, the far-from-equilibrium microstructure within the flow can be retained in the material. FCP was demonstrated on n-type Bi2Te3 feedstock powder having a -325 mesh size to form pucks with a diameter of 25.4 mm and thickness of 4.2 mm. Microstructural analysis confirmed that FCP can achieve highly textured bulk materials, with sub-micrometer grain size, directly from coarse feedstock powders in a single process. An average grain size of 0.8 mu m was determined for regions of one sample and a multiple of uniform distribution (MUD) value of 15.49 was calculated for the (0001) pole figure of another sample. These results indicate that FCP can yield ultra-fine grains and textural alignment of the (0001) basal planes in Bi2Te3. ZT = 0.37 at 336 K was achieved for undoped stoichiometric Bi2Te3, which approximates literature values of ZT = 0.4-0.5. These results point toward the ability to fabricate bulk thermoelectric materials with refined microstructure and desirable texture using far-from-equilibrium FCP solid-state processing. C1 [Whalen, Scott; Jana, Saumyadeep; Catalini, David; Overman, Nicole] Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA. [Sharp, Jeffrey] Marlow Ind Inc, 10451 Vista Pk Rd, Dallas, TX 75238 USA. RP Whalen, S (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA. EM scott.whalen@pnnl.gov FU Department of Energy, Energy Efficiency and Renewable Energy, Vehicle Technologies Office [VT0401000-05450-1004640] FX This work was supported by the Department of Energy, Energy Efficiency and Renewable Energy, Vehicle Technologies Office Contract VT0401000-05450-1004640 under the supervision of program managers John Fairbanks and Gurpreet Singh. The authors thank Nancy Yang and Doug Medlin at Sandia National Laboratories for their guidance during the early phase of this investigation. NR 42 TC 0 Z9 0 U1 13 U2 19 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0361-5235 EI 1543-186X J9 J ELECTRON MATER JI J. Electron. Mater. PD JUL PY 2016 VL 45 IS 7 BP 3390 EP 3399 DI 10.1007/s11664-016-4454-0 PG 10 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA DN9XN UT WOS:000377434100020 ER PT J AU Li, YZ Chernatynskiy, A Kennedy, JR Sinnott, SB Phillpot, SR AF Li, Yangzhong Chernatynskiy, Aleksandr Kennedy, J. Rory Sinnott, Susan B. Phillpot, Simon R. TI Lattice expansion by intrinsic defects in uranium by molecular dynamics simulation SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID 1ST PRINCIPLES CALCULATIONS; FISSION GAS BUBBLES; ALPHA-URANIUM; ELASTIC-CONSTANTS; GAMMA-URANIUM; BETA-URANIUM; POTENTIALS; UO2; DISPLACEMENT; TEMPERATURES AB A re-formulated and re-parameterized interatomic potential for uranium metal in the Charge-Optimized Many-Body (COMB) formalism is presented. Most physical properties of the orthorhombic alpha and bcc gamma phases are accurately reproduced. In particular, this potential can reproduce the negative thermal expansion of the b axis in alpha-U while keeping this phase as the most stable phase at low temperatures, in accord with experiment. Most of the volume expansion in alpha-U by intrinsic defects is shown to come from the b axis, due to the formation of prismatic loops normal to this direction. Glide dislocation loops forming stacking faults are also observed. Structures of both loop types are analyzed. An expansion simulation is conducted and the results are verified by using the Norgett-Robinson-Torrens model. Rather than forming extended defect structures as in alpha-U, the gamma phase forms only isolated defects and thus results in a much smaller and isotropic expansion. (C) 2016 Elsevier B.V. All rights reserved. C1 [Li, Yangzhong; Chernatynskiy, Aleksandr; Sinnott, Susan B.; Phillpot, Simon R.] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. [Li, Yangzhong] Sun Yat Sen Univ, Sinofrench Inst Nucl Engn & Technol, Zhuhai, Guangdong, Peoples R China. [Kennedy, J. Rory] Idaho Natl Lab, Nucl Sci User Facil, Idaho Falls, ID 83415 USA. [Chernatynskiy, Aleksandr] Missouri Univ Sci & Technol, Dept Phys, Rolla, MO USA. [Sinnott, Susan B.] Penn State Univ, Dept Mat Sci & Engn, State Coll, PA USA. RP Phillpot, SR (reprint author), Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. EM sphil@mse.ufl.edu OI Phillpot, Simon/0000-0002-7774-6535 FU U.S. Government under DOE, Energy Frontier Research Center (Office of Science, Office of Basic Energy Science) [DE-AC07-05ID14517, FWP 1356]; DOE Idaho Operations Office Contract [DE-AC07-051D14517]; U.S. Government; Nuclear Science User Facilities (Office of Nuclear Energy) FX This work was authored by subcontractors (YL, AC, SRP) of the U.S. Government under DOE Contract No. DE-AC07-05ID14517, under the Energy Frontier Research Center (Office of Science, Office of Basic Energy Science, FWP 1356) and by JRK under DOE Idaho Operations Office Contract DE-AC07-051D14517 as part of the Nuclear Science User Facilities (Office of Nuclear Energy). Accordingly, the U.S. Government retains and the publisher (by accepting the article for publication) acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. Government purposes. NR 54 TC 0 Z9 0 U1 8 U2 15 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 6 EP 18 DI 10.1016/j.jnucmat.2016.03.018 PG 13 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300002 ER PT J AU Tomchik, C Almer, J Anderoglu, O Balogh, L Brown, DW Clausen, B Maloy, SA Sisneros, TA Stubbins, JF AF Tomchik, C. Almer, J. Anderoglu, O. Balogh, L. Brown, D. W. Clausen, B. Maloy, S. A. Sisneros, T. A. Stubbins, J. F. TI High energy X-ray diffraction study of the relationship between the macroscopic mechanical properties and microstructure of irradiated HT-9 steel SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article DE Ferritic martensitic steel; HT-9; In-situ tensile test; High-energy X-ray diffraction; Lattice strain; Irradiation embrittlement ID LINE-PROFILE ANALYSIS; NEUTRON-DIFFRACTION; MARTENSITIC STEELS; DISLOCATION MODEL; STRAIN ANISOTROPY; CRYSTALS; ALLOYS; DEFORMATION; TEMPERATURE; POLYCRYSTALS AB Samples harvested from an HT-9 fuel test assembly (ACO-3) irradiated for six years in the Fast Flux Test Facility (FFTF) reaching 2-147 dpa at 382-504 degrees C were deformed in-situ while collecting high-energy Xray diffraction data to monitor microstructure evolution. With the initiation of plastic deformation, all samples exhibited a clear load transfer from the ferrite matrix to carbide particulate. This behavior was confirmed by modeling of the control material. The evolution of dislocation density in the material as a result of deformation was characterized through full pattern line profile analysis. The dislocation densities increased substantially after deformation, the level of dislocation evolution observed was highly dependent upon the irradiation temperature of the sample. Differences in both the yield and hardening behavior between samples irradiated at higher and lower temperatures suggest the existence of a transition in tensile behavior at an irradiation temperature near 420 degrees C dividing regions of distinct damage effects. (C) 2016 Elsevier B.V. All rights reserved. C1 [Tomchik, C.; Stubbins, J. F.] Univ Illinois, Urbana, IL 61801 USA. [Almer, J.] Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA. [Anderoglu, O.; Balogh, L.; Brown, D. W.; Clausen, B.; Maloy, S. A.; Sisneros, T. A.] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. [Balogh, L.] Queens Univ, Kingston, ON K7L 3N6, Canada. RP Tomchik, C (reprint author), Univ Illinois, Urbana, IL 61801 USA. EM tomchik@illinois.edu RI Clausen, Bjorn/B-3618-2015; Maloy, Stuart/A-8672-2009; Balogh, Levente/S-1238-2016 OI Clausen, Bjorn/0000-0003-3906-846X; Maloy, Stuart/0000-0001-8037-1319; FU DOE [DE-AC52-06NA25396]; DOE Office of Science [DE-AC02-06CH11357]; DOE NEUP [485363-973000-191100,] FX Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Support for this study was also provided by DOE NEUP under grant number 485363-973000-191100, entitled "Irradiation Performance of Fe-Cr Base Alloys." NR 40 TC 2 Z9 2 U1 11 U2 19 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 46 EP 56 DI 10.1016/j.jnucmat.2016.03.023 PG 11 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300006 ER PT J AU Leng, B van Rooyen, IJ Wu, YQ Szlufarska, I Sridharan, K AF Leng, B. van Rooyen, I. J. Wu, Y. Q. Szlufarska, I. Sridharan, K. TI STEM-EDS analysis of fission products in neutron-irradiated TRISO fuel particles from AGR-1 experiment SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID SILICON-CARBIDE; AG DIFFUSION; COATED PARTICLES; SILVER DIFFUSION; IDENTIFICATION; TRANSPORT; PALLADIUM; RELEASE; PD AB Historic and recent post-irradiation-examination from the German AVR and Advanced Gas Reactor Fuel Development and Qualification Project have shown that 110 m Ag is released from intact tristructural isotropic (TRISO) fuel. Although TRISO fuel particle research has been performed over the last few decades, little is known about how metallic fission products are transported through the SiC layer, and it was not until March 2013 that Ag was first identified in the SiC layer of a neutron-irradiated TRISO fuel particle. The existence of Pd-and Ag-rich grain boundary precipitates, triple junction precipitates, and Pd nano-sized intragranular precipitates in neutron-irradiated TRISO particle coatings was investigated using Scanning Transmission Electron Microscopy and Energy Dispersive Spectroscopy analysis to obtain more information on the chemical composition of the fission product precipitates. A U-rich fission product honeycomb shape precipitate network was found near a micron-sized precipitate in a SiC grain about similar to 5 mu m from the SiC-inner pyrolytic carbon interlayer, indicating a possible intragranular transport path for uranium. A single Ag-Pd nano-sized precipitate was found inside a SiC grain, and this is the first research showing such finding in irradiated SiC. This finding may possibly suggest a possible Pd-assisted intragranular transport mechanism for Ag and may be related to void or dislocation networks inside SiC grains. Preliminary semi-quantitative analysis indicated the micron-sized precipitates to be Pd2Si2U with carbon existing inside these precipitates. However, the results of such analysis for nano-sized precipitates may be influenced by the SiC matrix. The results reported in this paper confirm the co-existence of Cd with Ag in triple points reported previously. (C) 2016 Published by Elsevier B.V. C1 [Leng, B.; Szlufarska, I.; Sridharan, K.] Univ Wisconsin, Madison, WI 53706 USA. [Leng, B.] Shanghai Inst Appl Phys, Thorium Molten Salts Reactor Ctr, Shanghai 201800, Peoples R China. [van Rooyen, I. J.] Idaho Natl Lab, Fuel Design & Dev Dept, Idaho Falls, ID 83415 USA. [Wu, Y. Q.] Boise State Univ, Dept Mat Sci & Engn, Boise, ID 83725 USA. [Wu, Y. Q.] Ctr Adv Energy Studies, Idaho Falls, ID 83401 USA. RP van Rooyen, IJ (reprint author), Idaho Natl Lab, Fuel Design & Dev Dept, Idaho Falls, ID 83415 USA. EM Isabella.vanrooyen@inl.gov FU U.S. Department of Energy, Office of Nuclear Energy, under the Department of Energy Idaho Operations Office, Very High Temperature Reactor Development Program [DE-AC07-05ID14517]; U.S. Department of Energy, Office of Nuclear Energy, under the Department of Energy Idaho Operations Office, Advanced Test Reactor National Scientific User Facility Experiment [DE-AC07-05ID14517] FX This work was sponsored by the U.S. Department of Energy, Office of Nuclear Energy, under the Department of Energy Idaho Operations Office Contract DE-AC07-05ID14517, as part of the Very High Temperature Reactor Development Program and as part of an Advanced Test Reactor National Scientific User Facility Experiment. James Madden is acknowledged for the focused ion beam sample preparation. Paul Demkowicz and David Petti are thanked for the review of this paper. NR 22 TC 0 Z9 0 U1 3 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 62 EP 70 DI 10.1016/j.jnucmat.2016.03.008 PG 9 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300008 ER PT J AU Collette, R King, J Buesch, C Keiser, DD Williams, W Miller, BD Schulthess, J AF Collette, R. King, J. Buesch, C. Keiser, D. D., Jr. Williams, W. Miller, B. D. Schulthess, J. TI Analysis of irradiated U-7wt%Mo dispersion fuel microstructures using automated image processing SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article DE Nuclear fuel; MATLAB; Automated image analysis; Fission bubbles; Fission density; Porosity ID NUCLEAR-FUEL; MO; PERFORMANCE; ELEMENTS; REACTOR; MATRIX AB The High Performance Research Reactor Fuel Development (HPPRFD) program is responsible for developing low enriched uranium (LEU) fuel substitutes for high performance reactors fueled with highly enriched uranium (HEU) that have not yet been converted to LEU. The uranium-molybdenum (U-Mo) fuel system was selected for this effort. In this study, fission gas pore segmentation was performed on U-7wt%Mo dispersion fuel samples at three separate fission densities using an automated image processing interface developed in MATLAB. Pore size distributions were attained that showed both expected and unexpected fission gas behavior. In general, it proved challenging to identify any dominant trends when comparing fission bubble data across samples from different fuel plates due to varying compositions and fabrication techniques. The results exhibited fair agreement with the fission density vs. porosity correlation developed by the Russian reactor conversion program. (C) 2016 Elsevier B.V. All rights reserved. C1 [Collette, R.; King, J.] Colorado Sch Mines, Nucl Sci & Engn Program, 1500 Illinois St, Golden, CO 80401 USA. [Buesch, C.] Oregon State Univ, 1500 SW Jefferson St, Corvallis, OR 97331 USA. [Keiser, D. D., Jr.; Williams, W.; Miller, B. D.; Schulthess, J.] Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA. RP King, J (reprint author), Colorado Sch Mines, Nucl Sci & Engn Program, 1500 Illinois St, Golden, CO 80401 USA. EM kingjc@mines.edu RI Schulthess, Jason/S-1949-2016 OI Schulthess, Jason/0000-0002-4289-7528 FU U.S. Department of Energy, Office of Material Management and Minimization, National Nuclear Security Administration, under DOE-NE Idaho Operations Office [DE-AC07-05ID14517] FX This work was supported by the U.S. Department of Energy, Office of Material Management and Minimization, National Nuclear Security Administration, under DOE-NE Idaho Operations Office Contract DE-AC07-05ID14517. This manuscript was authored by a contractor for the U.S. Government. The publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. Government purposes. NR 25 TC 0 Z9 0 U1 5 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 94 EP 104 DI 10.1016/j.jnucmat.2016.03.028 PG 11 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300012 ER PT J AU Ma, HY Wang, HT Burns, PC McNamara, BK Buck, EC Na, CZ AF Ma, Hanyu Wang, Haitao Burns, Peter C. McNamara, Bruce K. Buck, Edgar C. Na, Chongzheng TI Synthesis and preservation of graphene-supported uranium dioxide nanocrystals SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID COMPOSITE FUEL PELLETS; ETHYLENE-GLYCOL; POLY(VINYL PYRROLIDONE); EPITAXIAL GRAPHENE; OXIDE NANOCRYSTALS; NI NANOPARTICLES; NANO-CATALYSTS; GRAPHITE OXIDE; POLYOL PROCESS; REDUCTION AB Graphene-supported uranium dioxide (UO2) nanocrystals are potentially important fuel materials. Here, we investigate the possibility of synthesizing graphene-supported UO2 nanocrystals in polar ethylene glycol compounds by the polyol reduction of uranyl acetylacetone under boiling reflux, thereby enabling the use of an inexpensive graphene precursor graphene oxide into a one-pot process. We show that triethylene glycol is the most suitable solvent with an appropriate reduction potential for producing nanometer-sized UO2 crystals compared to monoethylene glycol, diethylene glycol, and polyethylene glycol. Graphene-supported UO2 nanocrystals synthesized with triethylene glycol show evidence of heteroepitaxy, which can be beneficial for facilitating heat transfer in nuclear fuel particles. Furthermore, we show that graphene-supported UO2 nanocrystals synthesized by polyol reduction can be readily stored in alcohols, impeding oxidation from the prevalent oxygen in air. Together, these methods provide a facile approach for preparing and storing graphene-supported UO2 nanocrystals for further investigation and development under ambient conditions. (C) 2016 Elsevier B.V. All rights reserved. C1 [Ma, Hanyu; Wang, Haitao; Burns, Peter C.; Na, Chongzheng] Univ Notre Dame, Dept Civil & Environm Engn & Earth Sci, 156 Fitzpatrick Hall, Notre Dame, IN 46556 USA. [Wang, Haitao; Na, Chongzheng] Texas Tech Univ, Dept Civil Environm & Construct Engn, 911 Boston Ave, Lubbock, TX 79409 USA. [Burns, Peter C.] Univ Notre Dame, Dept Chem & Biochem, 251 Nieuwland Sci Hall, Notre Dame, IN 46556 USA. [McNamara, Bruce K.; Buck, Edgar C.] Pacific NW Natl Lab, Nucl Chem & Engn Grp, 902 Battelle Blvd, Richland, WA 99352 USA. RP Na, CZ (reprint author), Texas Tech Univ, Box 41023, Lubbock, TX 79409 USA. EM chongzheng.na@gmail.com OI Burns, Peter/0000-0002-2319-9628 FU USDOE Office of Nuclear Energy's Nuclear Energy University Programs [12-3923]; University of Notre Dame Sustainable Energy Initiative FX This work was mainly supported by the USDOE Office of Nuclear Energy's Nuclear Energy University Programs (Project 12-3923) and the University of Notre Dame Sustainable Energy Initiative. We thank Yong Wang for performing some of the synthetic and analytical experiments. NR 77 TC 0 Z9 0 U1 25 U2 37 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 113 EP 122 DI 10.1016/j.jnucmat.2016.03.027 PG 10 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300014 ER PT J AU Olive, DT Ganegoda, H Allen, T Yang, Y Dickerson, C Terry, J AF Olive, Daniel T. Ganegoda, Hasitha Allen, Todd Yang, Yong Dickerson, Clayton Terry, Jeff TI Using a spherical crystallite model with vacancies to relate local atomic structure to irradiation defects in ZrC and ZrN SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID ABSORPTION FINE-STRUCTURE; MOLECULAR-DYNAMICS; ZIRCONIUM CARBIDE; EXAFS ANALYSIS; HTGR FUEL; SCATTERING; NANOPARTICLES; MATRIX; MICROSTRUCTURE; SPECTROSCOPY AB Zirconium carbide and zirconium nitride are candidate materials for new fuel applications due to several favorable physicochemical properties. ZrC and ZrN samples were irradiated at the Advanced Test Reactor National Scientific User Facility with neutrons at 800 degrees C to a dose of 1 dpa. Structural examinations have been made of the ZrC samples using high resolution transmission electron microscopy, and the findings compared with a previous study of ZrC irradiated with protons at 800 degrees C. The use of X-ray absorption fine structure spectroscopy (XAFS) to characterize the radiation damage was also explored including a model based on spherical crystallites that can be used to relate EXAFS measurements to microscopy observations. A loss of coordination at more distant coordination shells was observed for both ZrC and ZrN, and a model using small spherical crystallites suggested this technique can be used to study dislocation densities in future studies of irradiated materials. (C) 2016 Elsevier B.V. All rights reserved. C1 [Olive, Daniel T.; Ganegoda, Hasitha; Terry, Jeff] IIT, Dept Phys, Chicago, IL 60616 USA. [Allen, Todd] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA. [Yang, Yong] Univ Florida, Nucl Engn Program, Gainesville, FL 32611 USA. [Dickerson, Clayton] Univ Wisconsin, Mat Sci Program, Madison, WI 53706 USA. [Olive, Daniel T.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Dickerson, Clayton] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Terry, J (reprint author), IIT, Dept Phys, Chicago, IL 60616 USA.; Terry, J (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM terryj@iit.edu RI ID, MRCAT/G-7586-2011; OI Olive, Daniel/0000-0002-6465-4981 FU U.S. Department of Energy; MRCAT member institutions; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office as part of Nuclear Science User Facilities [DE-AC07-051D14517] FX The authors wish to thank UW Reactor director, Robert Agasie, for assistance with sample. This research constituted a part of the Ph.D. thesis of one of the authors, D. T. O. MRCAT operations are supported by the U.S. Department of Energy and the MRCAT member institutions. 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. Work supported by the U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-051D14517, as part of Nuclear Science User Facilities. NR 50 TC 1 Z9 1 U1 11 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 123 EP 131 DI 10.1016/j.jnucmat.2016.04.004 PG 9 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300015 ER PT J AU Desormeaux, M Rouxel, B Motta, AT Kirk, M Bisor, C de Carlan, Y Legris, A AF Desormeaux, M. Rouxel, B. Motta, A. T. Kirk, M. Bisor, C. de Carlan, Y. Legris, A. TI Development of radiation damage during in-situ Kr++ irradiation of Fe-Ni-Cr model austenitic steels SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article DE In-situ; Ion-irradiation; Austenitic alloys; Dislocation loops ID ENERGY-LOSS SPECTROSCOPY; MICROSTRUCTURAL EVOLUTION; STAINLESS-STEELS; STABILITY; THICKNESS; ALLOYS; METALS; DEPENDENCE; TITANIUM; CLUSTERS AB In situ irradiations of 15Cr/15Ni-Ti and 15Cr/25Ni-Ti model austenitic steels were performed at the Intermediate Voltage Electron Microscope (IVEM)-Tandem user Facility (Argonne National Laboratory) at 600 degrees C using 1 MeV Kr++. The experiment was designed in the framework of cladding development for the GEN IV Sodium Fast Reactors (SFR). It is an extension of previous high dose irradiations on those model alloys at JANNuS-Saclay facility in France, aimed at investigating swelling mechanisms and microstructure evolution of these alloys under irradiation [1]. These studies showed a strong influence of Ni in decreasing swelling. In situ irradiations were used to continuously follow the microstructure evolution during irradiation using both diffraction contrast imaging and recording of diffraction patterns. Defect analysis, including defect size, density and nature, was performed to characterize the evolving microstructure and the swelling. Comparison of 15Cr/15Ni-Ti and 15Cr/25Ni-Ti irradiated microstructure has lent insight into the effect of nickel content in the development of radiation damage caused by heavy ion irradiation. The results are quantified and discussed in this paper. (C) 2016 Elsevier B.V. All rights reserved. C1 [Desormeaux, M.; Bisor, C.] Univ Paris Saclay, CEA, DEN Serv Etud Mat Irradies, F-91191 Gif Sur Yvette, France. [Rouxel, B.; de Carlan, Y.] Univ Paris Saclay, CEA, DEN Serv Rech Met Appl, F-91191 Gif Sur Yvette, France. [Desormeaux, M.; Motta, A. T.] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA. [Kirk, M.] Argonne Natl Lab, Div Mat Sci, Electron Microscopy Ctr, 9700 S Cass Ave, Argonne, IL 60439 USA. [Legris, A.] Univ Lille 1, UMR CNRS 8207, UMET, F-59655 Villeneuve Dascq, France. RP Desormeaux, M (reprint author), Univ Paris Saclay, CEA, DEN Serv Etud Mat Irradies, F-91191 Gif Sur Yvette, France. EM marc.desormeaux@gmail.com FU DOE Office of Nuclear Energy [DE-AC02-06CH11357] FX The electron microscopy with in situ ion irradiation was accomplished at Argonne National Laboratory at the IVEM-Tandem Facility, a U.S. Department of Energy Facility funded by the DOE Office of Nuclear Energy, operated under Contract No. DE-AC02-06CH11357 by UChicago Argonne, LLC. NR 31 TC 0 Z9 0 U1 7 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 156 EP 167 DI 10.1016/j.jnucmat.2016.04.012 PG 12 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300019 ER PT J AU Chakraborty, P Sabharwall, P Carroll, MC AF Chakraborty, Pritam Sabharwall, Piyush Carroll, Mark C. TI A phase-field approach to model multi-axial and microstructure dependent fracture in nuclear grade graphite SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID CONTINUUM DAMAGE MECHANICS; BRITTLE-FRACTURE AB The fracture behavior of nuclear grade graphites is strongly influenced by underlying microstructural features such as the character of filler particles, and the distribution of pores and voids. These microstructural features influence the crack nucleation and propagation behavior, resulting in quasi-brittle fracture with a tortuous crack path and significant scatter in measured bulk strength. This study uses a phase-field method to model the microstructural and multi-axial fracture in H-451, a historic variant of nuclear graphite that provides the basis for an idealized study on a legacy grade. The representative volume elements are constructed from randomly located pores with random size obtained from experimentally determined log-normal distribution. The representative volume elements are then subjected to simulated multi-axial loading, and a reasonable agreement of the resulting fracture stress with experiments is obtained. Quasi-brittle stress-strain evolution with a tortuous crack path is also observed from the simulations and is consistent with experimental results. (C) 2016 Elsevier B.V. All rights reserved. C1 [Chakraborty, Pritam; Sabharwall, Piyush; Carroll, Mark C.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Chakraborty, P (reprint author), 2525 Fremont Ave, Idaho Falls, ID 83401 USA. EM pritam.chakraborty@inl.gov FU U.S. Department of Energy-Nuclear Energy; U.S. Department of Energy [DE-AC07-05ID14517] FX This work was carried out under the Very High Temperature Reactor (VHTR) Graphite Materials program supported through the U.S. Department of Energy-Nuclear Energy. This manuscript has been authored by Battelle Energy Alliance, LLC under Contract No. DE-AC07-05ID14517 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 29 TC 0 Z9 0 U1 8 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 200 EP 208 DI 10.1016/j.jnucmat.2016.04.006 PG 9 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300022 ER PT J AU Chen, Y Li, N Bufford, DC Li, J Hattar, K Wang, H Zhang, X AF Chen, Y. Li, N. Bufford, D. C. Li, J. Hattar, K. Wang, H. Zhang, X. TI In situ study of heavy ion irradiation response of immiscible Cu/Fe multilayers SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article DE In situ ion irradiation; Heavy ion irradiation; Immiscible interfaces; Cu/Fe multilayers; Size effect ID STACKING-FAULT TETRAHEDRA; RADIATION-DAMAGE; HE ION; NANOTWINNED METALS; GRAIN-BOUNDARIES; STRENGTHENING MECHANISMS; ELECTRON-IRRADIATION; DEFECT ACCUMULATION; HIGH-TEMPERATURE; TWIN BOUNDARIES AB Recent studies show that immiscible metallic multilayers with incoherent interfaces can effectively reduce defect density in ion irradiated metals by providing active defect sinks that capture and annihilate radiation induced defect clusters. Although it is anticipated that defect density within the layers should vary as a function of distance to the layer interface, there is, to date, little in situ TEM evidence to validate this hypothesis. In this study monolithic Cu films and Cu/Fe multilayers with individual layer thickness, h, of 100 and 5 nm were subjected to in situ Cu ion irradiation at room temperature to nominally 1 displacement-per-atom inside a transmission electron microscope. Rapid formation and propagation of defect clusters were observed in monolithic Cu, whereas fewer defects with smaller dimensions were generated in Cu/Fe multilayers with smaller h. Furthermore in situ video shows that the cumulative defect density in Cu/Fe 100 nm multilayers indeed varies, as a function of distance to the layer interfaces, supporting a long postulated hypothesis. (C) 2016 Elsevier B.V. All rights reserved. C1 [Chen, Y.; Li, J.; Wang, H.; Zhang, X.] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA. [Chen, Y.; Li, N.] Los Alamos Natl Lab, MPA CINT, POB 1663, Los Alamos, NM 87545 USA. [Bufford, D. C.; Hattar, K.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Wang, H.] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA. [Zhang, X.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. [Zhang, X.] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA. RP Zhang, X (reprint author), Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA. EM zhangx@tamu.edu RI Chen, Youxing/P-5006-2016; Li, Nan /F-8459-2010 OI Chen, Youxing/0000-0003-1111-4495; Li, Nan /0000-0002-8248-9027 FU NSF [DMR-1304101]; Division of Materials Science and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX We acknowledge financial support by NSF DMR-1304101. Michael Marshall and Daniel Buller (Sandia National Laboratories) are acknowledged for their assistance with the TEM and ion beam. Work performed by KH and DCB was fully supported by the Division of Materials Science and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy. 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. Access to microscopy and imaging center (MIC) at Texas A&M University is also acknowledged. NR 82 TC 2 Z9 2 U1 10 U2 24 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD JUL PY 2016 VL 475 BP 274 EP 279 DI 10.1016/j.jnucmat.2016.04.009 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA DN8CR UT WOS:000377307300029 ER PT J AU Tang, M Tumurugoti, P Clark, B Sundaram, SK Amoroso, J Marra, J Sun, C Lu, P Wang, YQ Jiang, YB AF Tang, Ming Tumurugoti, Priyatham Clark, Braeden Sundaram, S. K. Amoroso, Jake Marra, James Sun, Cheng Lu, Ping Wang, Yongqiang Jiang, Ying. -Bing. TI Heavy ion irradiations on synthetic hollandite-type materials: Ba(1.0)Cs(0.3)A(2.3)Ti(5.7)O(16) (A = Cr, Fe, Al) SO JOURNAL OF SOLID STATE CHEMISTRY LA English DT Article DE Hollandite; Amorphization; Radiation damage ID NUCLEAR-WASTE IMMOBILIZATION; ELECTRON-IRRADIATION; RADIATION; SYNROC; CERAMICS; CESIUM; DAMAGE; FORMS; MINERALS AB The hollandite supergroup of minerals has received considerable attention as a nuclear waste form for immobilization of Cs. The radiation stability of synthetic hollandite-type compounds described generally as Ba(1.0)Cs(0.3)A(2.3)Ti(5.7)O(16) (A= Cr, Fe, Al) were evaluated by heavy ion (Kr) irradiations on polycrystalline single phase materials and multiphase materials incorporating the hollandite phases. Ion irradiation damage effects on these samples were examined using grazing incidence X-ray diffraction (GIXRD) and transmission electron microscopy (TEM). Single phase compounds possess tetragonal structure with space group I4/m. GIXRD and TEM observations revealed that 600 key Kr irradiation-induced amorphization on single phase hollandites compounds occurred at a fluence between 2.5 x 10(14) Kr/cm(2) and 5 x 10(14) Kr/cm(2). The critical amorphization fluence of single phase hollandite compounds obtained by in situ 1 MeV Kr ion irradiation was around 3.25 x 10(14) Kr/cm(2). The hollandite phase exhibited similar amorphization susceptibility under Kr ion irradiation when incorporated into a multiphase system. (C) 2016 Elsevier Inc. All rights reserved. C1 [Tang, Ming; Sun, Cheng; Wang, Yongqiang] Los Alamos Natl Lab, Div Mat Sci & Technol, POB 1663, Los Alamos, NM 87545 USA. [Tumurugoti, Priyatham; Clark, Braeden; Sundaram, S. K.] Alfred Univ, New York State Coll Ceram, Kazuo Inamori Sch Engn, Alfred, NY 14802 USA. [Amoroso, Jake; Marra, James] Savannah River Natl Lab, Mat Sci & Technol Directorate, Aiken, SC 29808 USA. [Lu, Ping] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Jiang, Ying. -Bing.] Univ New Mexico, TEM Lab, Albuquerque, NM 87131 USA. RP Tang, M (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, POB 1663, Los Alamos, NM 87545 USA. EM mtang@lanl.gov FU Department of Energy, Office of Nuclear Energy (DOE-NE); Department of Energy's Nuclear Energy University Program (NEUP); Inamori Professorship by Kyocera Corporation; US Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; DOE Office of Nuclear Energy by UChicago Argonne, LLC [DE-AC02-06CH11357] FX The authors would like to thank the Department of Energy, Office of Nuclear Energy (DOE-NE) for funding this work under the Fuel Cycle Research and Development Program. The authors would also like to thank John Vienna (Pacific Northwest National Laboratory), Terry Todd (Idaho National Laboratory), Kimberly Gray and James Bresee (DOE-NE) for project oversight and guidance.; The authors would also like to thank the Department of Energy's Nuclear Energy University Program (NEUP) for supporting this project. One of the authors (SKS) is grateful to the generous support of Inamori Professorship by Kyocera Corporation. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the US Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.; The electron microscopy with in situ ion irradiation was accomplished at Argonne National Laboratory at the IVEM-Tandem Facility, a U.S. Department of Energy Facility funded by the DOE Office of Nuclear Energy, operated under Contract no. DE-AC02-06CH11357 by UChicago Argonne, LLC. NR 32 TC 1 Z9 1 U1 6 U2 14 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0022-4596 EI 1095-726X J9 J SOLID STATE CHEM JI J. Solid State Chem. PD JUL PY 2016 VL 239 BP 58 EP 63 DI 10.1016/j.jssc.2016.04.014 PG 6 WC Chemistry, Inorganic & Nuclear; Chemistry, Physical SC Chemistry GA DN9SW UT WOS:000377422000009 ER PT J AU Webb, IK Garimella, SVB Norheim, RV Baker, ES Ibrahim, YM Smith, RD AF Webb, Ian K. Garimella, Sandilya V. B. Norheim, Randolph V. Baker, Erin S. Ibrahim, Yehia M. Smith, Richard D. TI A Structures for Lossless Ion Manipulations (SLIM) Module for Collision Induced Dissociation SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY LA English DT Article DE Collision induced dissociation; Ion mobility spectrometry; rf Confinement; Ion optics; Peptide fragmentation; Manipulation; Conveyor ID FLIGHT MASS-SPECTROMETRY; SURFACE-INDUCED DISSOCIATION; MOBILITY-SEPARATED IONS; FUNNEL TRAP; DRIFT-TUBE; PROTEOMICS; FRAGMENTATION; OPTIMIZATION; INTERFACE; PEPTIDES AB A collision induced dissociation (CID) structure for lossless ion manipulations (SLIM) module is introduced and coupled to a quadrupole time-of-flight (QTOF) mass spectrometer. The SLIM CID module was mounted after an ion mobility (IM) drift tube to enable IM/CID/MS studies. The efficiency of CID was studied by using the model peptide leucine enkephalin. CID efficiencies (62%) compared favorably with other beam-type CID methods. Additionally, the SLIM CID module was used to fragment a mixture of nine peptides after IM separation. This work also represents the first application of SLIM in the 0.3 to 0.5 Torr pressure regime, an order of magnitude lower in pressure than previously studied. C1 [Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, 3335 Innovat Ave K8-98,POB 999, Richland, WA 99352 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, 3335 Innovat Ave K8-98,POB 999, Richland, WA 99352 USA. RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, 3335 Innovat Ave K8-98,POB 999, Richland, WA 99352 USA. EM rds@pnnl.gov RI Smith, Richard/J-3664-2012; OI Smith, Richard/0000-0002-2381-2349; Garimella, Sandilya Venkata Bhaskara/0000-0001-6649-9842 FU National Institutes of Health (NIH) NIGMS [5P41GM103493-13]; Department of Energy, Office of Biological and Environmental Research Genome Sciences Program under the Pan-omics project; Laboratory Directed Research and Development (LDRD) program at the Pacific Northwest National Laboratory; DOE [DE-AC05-76RL0 1830] FX Portions of this research were supported by the National Institutes of Health (NIH) NIGMS grant 5P41GM103493-13 (R.D.S.), by the Department of Energy, Office of Biological and Environmental Research Genome Sciences Program under the Pan-omics project, and the Laboratory Directed Research and Development (LDRD, I.K.W. and E.S.B.) program at the Pacific Northwest National Laboratory. Work was performed in the Environmental Molecular Science Laboratory, a U.S. Department of Energy (DOE) national scientific user facility at Pacific Northwest National Laboratory (PNNL) in Richland, WA. PNNL is operated by Battelle for the DOE under contract DE-AC05-76RL0 1830. NR 37 TC 2 Z9 2 U1 5 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1044-0305 EI 1879-1123 J9 J AM SOC MASS SPECTR JI J. Am. Soc. Mass Spectrom. PD JUL PY 2016 VL 27 IS 7 BP 1285 EP 1288 DI 10.1007/s13361-016-1397-x PG 4 WC Biochemical Research Methods; Chemistry, Analytical; Chemistry, Physical; Spectroscopy SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy GA DN9QX UT WOS:000377416200017 PM 27098413 ER PT J AU Wu, H Li, YL Miao, ZJ Wang, YQ Zhu, RS Bie, RF Wang, Y AF Wu, Hao Li, Yueli Miao, Zhenjiang Wang, Yuqi Zhu, Runsheng Bie, Rongfang Wang, Yi TI Creative and high-quality image composition based on a new criterion SO JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION LA English DT Article DE Image composition; Wavelet pyramid; Multi-scale composition; Semantic matching; Image entropy; Joint probability; SIFT; GIST ID ANNOTATION AB Image compositing techniques are primarily utilized to achieve realistic composite results. Some existing image compositing methods, such as gradient domain and alpha matting, are widely used in the field of computer vision, and can typically achieve realistic results, especially for seamless boundaries. However, when the candidate composite images and the target images have obvious differences, such as color, texture and brightness, the composite results are unrealistic and inconsistent. At the same time, traditional compositing methods focus on basic feature matching, ignoring semantic rationality in composition processing. Quite a few compositing methods thus generate composite results without semantic rationality. In this paper, a new multi-scale image composition method has been presented. In the composition process, wavelet pyramid and basic feature handling were used to achieve multi-scale compositions. More importantly, a new criterion was established, based on the semantic rationality. of images, which could ensure that the composite images are semantically valid. A large database was created to facilitate experimentation. The experiments showed that the methodology introduced in this paper produced superior results compared to traditional composition methods; the composite results were not only consistent and seamless, but were also semantically valid. (C) 2016 Elsevier Inc. All rights reserved. C1 [Wu, Hao; Bie, Rongfang] Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China. [Wu, Hao] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Li, Yueli] Agr Univ Hebei, Coll Informat Sci & Technol, Baoding, Peoples R China. [Wu, Hao; Miao, Zhenjiang; Wang, Yuqi; Zhu, Runsheng; Bie, Rongfang; Wang, Yi] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing, Peoples R China. [Wang, Yi] Carnegie Mellon Univ, Inst Robot, Pittsburgh, PA 15213 USA. RP Bie, RF (reprint author), Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China.; Bie, RF (reprint author), Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing, Peoples R China. EM rongfangbie@163.com FU National Natural Science Foundation of China [61371185, 61401029, 61571049]; Fundamental Research Funds for the Central Universities [2014KJJCB32, 2013NT57, 2012LYB46]; SRF for ROCS, SEM; NSFC [61273274, 61370127, 61201158]; FRFCU [2014JBZ004, Z131110001913143]; [15ZR003]; [NSFB4123104] FX This research is sponsored by National Natural Science Foundation of China (Nos. 61371185, 61401029, 61571049), the Fundamental Research Funds for the Central Universities (Nos. 2014KJJCB32, 2013NT57, 2012LYB46), Research Funds (15ZR003) and by SRF for ROCS, SEM, NSFC 61273274, 61370127 and 61201158, NSFB4123104, FRFCU 2014JBZ004, Z131110001913143. Especially thanks to Research "Small Instance Model For Massive Image Retrieval" and "Completion Material Optimized Retrieval Based Image Completion". NR 41 TC 1 Z9 1 U1 4 U2 5 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1047-3203 EI 1095-9076 J9 J VIS COMMUN IMAGE R JI J. Vis. Commun. Image Represent. PD JUL PY 2016 VL 38 BP 100 EP 114 DI 10.1016/j.jvcir.2016.02.011 PG 15 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA DN5ZB UT WOS:000377149100010 ER PT J AU Wu, H Li, YL Miao, ZJ Wang, YQ Zhu, RS Bie, RF Lie, R AF Wu, Hao Li, Yueli Miao, Zhenjiang Wang, Yuqi Zhu, Runsheng Bie, Rongfang Lie, Rui TI A new sampling algorithm for high-quality image matting SO JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION LA English DT Article DE Random sampling; Cost function; WLS filter; Multi-decompositions; SAD; MSE ID ANISOTROPIC DIFFUSION; SEGMENTATION AB Image matting is the extraction of the foreground from an image through the use of provided information. It has been an important technique in the image and video editing field. Current image matting methods estimate the foreground and background, based on information provided regarding the nearby pixels. Color sampling has been an effective means for matting directly, and quite a few methods have achieved high quality matting results based on color sampling. However, there are some drawbacks; for example it is easy to overlook important candidate pixels for matting, and even if the candidate pixels are effectively selected, similar foregrounds and backgrounds will reduce the accuracy of the matting. In this paper's work, a Weighted-Least Squares (WLS) filter was utilized to sharpen the boundaries between the foregrounds and backgrounds, which facilitated the matting process; and an innovative sampling criterion based on random searching for the matting was then presented. This innovative method could effectively prevent valid samples being overlooked, and could manage the relationships of the nearby and distant pixels. In this process, a new cost function was utilized to evaluate the candidate samples. Experiments utilizing an image database demonstrated that this method significantly improved the matting results. (C) 2016 Elsevier Inc. All rights reserved. C1 [Wu, Hao; Bie, Rongfang] Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China. [Wu, Hao] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Li, Yueli] Agr Univ Hebei, Coll Informat Sci & Technol, Wuhan, Peoples R China. [Wu, Hao; Miao, Zhenjiang; Wang, Yuqi; Zhu, Runsheng; Bie, Rongfang] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing, Peoples R China. [Lie, Rui] Beijing Jiaotong Univ, Sch Civil Engn, Beijing, Peoples R China. RP Bie, RF (reprint author), Beijing Normal Univ, Coll Informat Sci & Technol, Beijing 100875, Peoples R China. EM rongfangbie@163.com FU National Natural Science Foundation of China [61371185, 61401029, 61571049]; Fundamental Research Funds for the Central Universities [2014KJJCB32, 2013NT57, 2012LYB46]; SRF for ROCS, SEM [NSFC 61273274, 61370127, 61201158, NSFB4123104, FRFCU 2014JBZ004, Z131110001913143]; [15ZR003] FX This research is sponsored by National Natural Science Foundation of China (Nos. 61371185, 61401029, 61571049), the Fundamental Research Funds for the Central Universities (Nos. 2014KJJCB32, 2013NT57, 2012LYB46), Research Funds (15ZR003) and by SRF for ROCS, SEM, NSFC 61273274, 61370127 and 61201158, NSFB4123104, FRFCU 2014JBZ004, Z131110001913143. NR 32 TC 1 Z9 1 U1 6 U2 10 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1047-3203 EI 1095-9076 J9 J VIS COMMUN IMAGE R JI J. Vis. Commun. Image Represent. PD JUL PY 2016 VL 38 BP 573 EP 581 DI 10.1016/j.jvcir.2016.04.008 PG 9 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA DN5ZB UT WOS:000377149100049 ER PT J AU Liu, Y Ma, SG Gao, MC Zhang, C Zhang, T Yang, HJ Wang, ZH Qiao, JW AF Liu, Yong Ma, Shengguo Gao, Michael C. Zhang, Chuan Zhang, Teng Yang, Huijun Wang, Zhihua Qiao, Junwei TI Tribological Properties of AlCrCuFeNi2 High-Entropy Alloy in Different Conditions SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article; Proceedings Paper CT Symposium on High-Entropy Alloys held at the TMS Annual Meeting and Exhibition CY 2015 CL San Diego, CA SP The Minerals, Met & Mat Soc ID BULK METALLIC-GLASS; WEAR BEHAVIOR; CORROSION-RESISTANCE; MICROSTRUCTURE; EVOLUTION; FRICTION; SEAWATER; CONTACT; PHASE AB In order to understand the environmental effect on the mechanical behavior of high-entropy alloys, the tribological properties of AlCrCuFeNi2 are studied systematically in dry, simulated rainwater, and deionized water conditions against the Si3N4 ceramic ball at a series of different normal loads. The present study shows that both the friction and wear rate in simulated rainwater are the lowest. The simulated rainwater plays a significant role in the tribological behavior with the effect of forming passive film, lubricating, cooling, cleaning, and corrosion. The wear mechanism in simulated rainwater is mainly adhesive wear accompanied by abrasive wear as well as corrosive wear. In contrast, those in dry condition and deionized water are abrasive wear, adhesive wear, and surface plastic deformation. Oxidation contributes to the wear behavior in dry condition but is prevented in liquid condition. In addition, the phase diagram of Al (x) CrCuFeNi2 is predicted using CALPHAD modeling, which is in good agreement with the literature report and the present study. C1 [Liu, Yong; Zhang, Teng; Yang, Huijun] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China. [Liu, Yong; Zhang, Teng; Yang, Huijun; Qiao, Junwei] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China. [Ma, Shengguo; Wang, Zhihua] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China. [Gao, Michael C.] Natl Energy Technol Lab, 1450 Queen Ave SW, Albany, OR 97321 USA. [Gao, Michael C.] AECOM, POB 1959, Albany, OR USA. [Zhang, Chuan] CompuTherm LLC, 437 S Yellowstone Dr,Suite 217, Madison, WI 53719 USA. RP Yang, HJ (reprint author), Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China. EM pineyang@126.com; qiaojunwei@gmail.com NR 37 TC 2 Z9 2 U1 5 U2 18 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUL PY 2016 VL 47A IS 7 BP 3312 EP 3321 DI 10.1007/s11661-016-3396-8 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DN9XT UT WOS:000377434700012 ER PT J AU Gao, MC Zhang, B Guo, SM Qiao, JW Hawk, JA AF Gao, M. C. Zhang, B. Guo, S. M. Qiao, J. W. Hawk, J. A. TI High-Entropy Alloys in Hexagonal Close-Packed Structure SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article; Proceedings Paper CT Symposium on High-Entropy Alloys held at the TMS Annual Meeting and Exhibition CY 2015 CL San Diego, CA SP The Minerals, Met & Mat Soc ID PHASE-STABILITY; SYSTEM; MICROSTRUCTURES; ELEMENTS AB The microstructures and properties of high-entropy alloys (HEAs) based on the face-centered cubic and body-centered cubic structures have been studied extensively in the literature, but reports on HEAs in the hexagonal close-packed (HCP) structure are very limited. Using an efficient strategy in combining phase diagram inspection, CALPHAD modeling, and ab initio molecular dynamics simulations, a variety of new compositions are suggested that may hold great potentials in forming single-phase HCP HEAs that comprise rare earth elements and transition metals, respectively. Experimental verification was carried out on CoFeReRu and CoReRuV using X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy. C1 [Gao, M. C.] AECOM, Natl Energy Technol Lab, POB 1959, Albany, OR 97321 USA. [Zhang, B.; Guo, S. M.] Louisiana State Univ, Dept Mech & Ind Engn, Baton Rouge, LA 70803 USA. [Qiao, J. W.] Taiyuan Univ Technol, Dept Mat Sci & Engn, Taiyuan 030024, Peoples R China. [Hawk, J. A.] Natl Energy Technol Lab, Struct Mat Dev Div, Albany, OR 97321 USA. RP Gao, MC (reprint author), AECOM, Natl Energy Technol Lab, POB 1959, Albany, OR 97321 USA. EM michael.gao@netl.doe.gov NR 37 TC 12 Z9 12 U1 33 U2 53 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUL PY 2016 VL 47A IS 7 BP 3322 EP 3332 DI 10.1007/s11661-015-3091-1 PG 11 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DN9XT UT WOS:000377434700013 ER PT J AU Gao, MC Zhang, B Yang, S Guo, SM AF Gao, M. C. Zhang, B. Yang, S. Guo, S. M. TI Senary Refractory High-Entropy Alloy HfNbTaTiVZr SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article; Proceedings Paper CT Symposium on High-Entropy Alloys held at the TMS Annual Meeting and Exhibition CY 2015 CL San Diego, CA SP The Minerals, Met & Mat Soc ID SOLID-SOLUTION PHASE; MULTICOMPONENT ALLOYS; MOLECULAR-DYNAMICS; DESIGN; BEHAVIOR AB Discovery of new single-phase high-entropy alloys (HEAs) is important to understand HEA formation mechanisms. The present study reports computational design and experimental validation of a senary HEA, HfNbTaTiVZr, in a body-centered cubic structure. The phase diagrams and thermodynamic properties of this senary system were modeled using the CALPHAD method. Its atomic structure and diffusion constants were studied using ab initio molecular dynamics simulations. The microstructure of the as-cast HfNbTaTiVZr alloy was studied using X-ray diffraction and scanning electron microscopy, and the microsegregation in the as-cast state was found to qualitatively agree with the solidification predictions from CALPHAD. Supported by both simulation and experimental results, the HEA formation rules are discussed. C1 [Gao, M. C.] AECOM, Natl Energy Technol Lab, POB 1959, Albany, OR 97321 USA. [Zhang, B.; Guo, S. M.] Louisiana State Univ, Dept Mech & Ind Engn, Baton Rouge, LA 70803 USA. [Yang, S.] Southern Univ, Baton Rouge, LA 70813 USA. [Yang, S.] A&M Coll, Baton Rouge, LA 70813 USA. RP Gao, MC (reprint author), AECOM, Natl Energy Technol Lab, POB 1959, Albany, OR 97321 USA. EM michael.gao@netl.doe.gov; sguo2@lsu.edu NR 42 TC 5 Z9 5 U1 14 U2 22 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUL PY 2016 VL 47A IS 7 BP 3333 EP 3345 DI 10.1007/s11661-015-3105-z PG 13 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DN9XT UT WOS:000377434700014 ER PT J AU Liu, Y Ma, SG Gao, MC Zhang, C Zhang, T Yang, HJ Wang, ZH Qiao, JW AF Liu, Yong Ma, Shengguo Gao, Michael C. Zhang, Chuan Zhang, Teng Yang, Huijun Wang, Zhihua Qiao, Junwei TI Tribological Properties of AlCrCuFeNi2 High-Entropy Alloy in Different Conditions (vol 47, pg 3312, 2016) SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Correction C1 [Liu, Yong; Zhang, Teng; Yang, Huijun] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China. [Liu, Yong; Zhang, Teng; Yang, Huijun; Qiao, Junwei] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China. [Ma, Shengguo; Wang, Zhihua] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China. [Gao, Michael C.] Natl Energy Technol Lab, 1450 Queen Ave SW, Albany, OR 97321 USA. [Gao, Michael C.] AECOM, POB 1959, Albany, OR USA. [Zhang, Chuan] CompuTherm LLC, 437 S Yellowstone Dr,Suite 217, Madison, WI 53719 USA. RP Yang, HJ (reprint author), Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China. EM pineyang@126.com; qiaojunwei@gmail.com NR 1 TC 0 Z9 0 U1 8 U2 9 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JUL PY 2016 VL 47A IS 7 BP 3781 EP 3781 DI 10.1007/s11661-016-3434-6 PG 1 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA DN9XT UT WOS:000377434700052 ER PT J AU Lahiani, MH Dervishi, E Ivanov, I Chen, JH Khodakovskaya, M AF Lahiani, Mohamed H. Dervishi, Enkeleda Ivanov, Ilia Chen, Jihua Khodakovskaya, Mariya TI Comparative study of plant responses to carbon-based nanomaterials with different morphologies SO NANOTECHNOLOGY LA English DT Article DE carbon-based nanomaterials; properties of carbon nanomaterials; germination; uptake of carbon nanotubes; aquaporin gene expression; tomato seeds ID SOIL MICROBIAL COMMUNITY; SURFACE-CHEMISTRY; SEED-GERMINATION; MAMMALIAN-CELLS; RED SPINACH; IN-VITRO; NANOPARTICLES; NANOTUBES; GROWTH; FULLERENE AB The relationship between the morphology of carbon-based nanomaterials (CBNs) and the specific response of plants exposed to CBNs has not been studied systematically. Here, we prove that CBNs with different morphologies can activate cell growth, germination, and plant growth. A tobacco cell culture growth was found to increase by 22%-46% when CBNs such as helical multi-wall carbon nanotubes (MWCNTs), few-layered graphene, long MWCNTs, and short MWCNTs were added to the growth medium at a concentration of 50 mu g ml(-1). The germination of exposed tomato seeds, as well as the growth of exposed tomato seedlings, were significantly enhanced by the addition of all tested CBNs. The presence of CBNs inside exposed seeds was confirmed by transmission electron microscopy and Raman spectroscopy. The effects of helical MWCNTs on gene expression in tomato seeds and seedlings were investigated by microarray technology and real time-PCR. Helical MWCNTs affected a number of genes involved in cellular and metabolic processes and response to stress factors. It was shown that the expression of the tomato water channel gene in tomato seeds exposed to helical MWCNTs was upregulated. These established findings demonstrate that CBNs with different morphologies can cause the same biological effects and share similar mechanisms in planta. C1 [Lahiani, Mohamed H.; Khodakovskaya, Mariya] Univ Arkansas, Dept Biol, Little Rock, AR 72204 USA. [Dervishi, Enkeleda] Univ Arkansas, Ctr Integrat Nanotechnol Sci, Little Rock, AR 72204 USA. [Dervishi, Enkeleda] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys, POB 1663, Los Alamos, NM 87545 USA. [Dervishi, Enkeleda] Los Alamos Natl Lab, Applicat Div, POB 1663, Los Alamos, NM 87545 USA. [Ivanov, Ilia; Chen, Jihua] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Khodakovskaya, Mariya] Russian Acad Sci, Far Eastern Branch, Inst Biol & Soil Sci, Vladivostok 690022, Russia. RP Khodakovskaya, M (reprint author), Univ Arkansas, Dept Biol, Little Rock, AR 72204 USA.; Khodakovskaya, M (reprint author), Russian Acad Sci, Far Eastern Branch, Inst Biol & Soil Sci, Vladivostok 690022, Russia. EM mvkhodakovsk@ualr.edu RI Chen, Jihua/F-1417-2011; ivanov, ilia/D-3402-2015 OI Chen, Jihua/0000-0001-6879-5936; ivanov, ilia/0000-0002-6726-2502 NR 51 TC 0 Z9 0 U1 7 U2 25 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 JUL 1 PY 2016 VL 27 IS 26 AR 265102 DI 10.1088/0957-4484/27/26/265102 PG 13 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA DO0TH UT WOS:000377490700004 PM 27195934 ER PT J AU Bellerive, A Klein, JR McDonald, AB Noble, AJ Poon, AWP AF Bellerive, A. Klein, J. R. McDonald, A. B. Noble, A. J. Poon, A. W. P. CA SNO Collaboration TI The Sudbury Neutrino Observatory SO NUCLEAR PHYSICS B LA English DT Article ID SOLAR MODELS; CALIBRATION SOURCE; OSCILLATIONS; SEARCH; MATTER AB This review paper provides a summary of the published results of the Sudbury Neutrino Observatory (SNO) experiment that was carried out by an international scientific collaboration with data collected during the period from 1999 to 2006. By using heavy water as a detection medium, the SNO experiment demonstrated clearly that solar electron neutrinos from B-8 decay in the solar core change into other active neutrino flavors in transit to Earth. The reaction on deuterium that has equal sensitivity to all active neutrino flavors also provides a very accurate measure of the initial solar flux for comparison with solar models. This review summarizes the results from three phases of solar neutrino detection as well as other physics results obtained from analyses of the SNO data. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3). C1 [Bellerive, A.] Carleton Univ, Dept Phys, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada. [Klein, J. R.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [McDonald, A. B.; Noble, A. J.] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada. [Poon, A. W. P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Inst Nucl & Particle Astrophys, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP McDonald, AB (reprint author), Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada. EM alainb@physics.carleton.ca; jrk@hep.upenn.edu; art@snolab.ca; potato@snolab.ca; awpoon@lbl.gov FU Canada: Natural Sciences and Engineering Research Council of Canada; Canada: Industry Canada; Canada: National Research Council Canada; Canada: Northern Ontario Heritage Fund; Canada: Atomic Energy of Canada, Ltd.; Canada: Ontario Power Generation; Canada: High Performance Computing Virtual Laboratory; Canada: Canada Foundation for Innovation; Canada: Canada Research Chairs; US: Department of Energy; US: National Energy Research Scientific Computing Center; US: Alfred P. Sloan Foundation; UK: Science and Technology Facilities Council; Portugal: Fundacao para a Ciencia e a Tecnologia FX This research was supported by: Canada: Natural Sciences and Engineering Research Council of Canada, Industry Canada, National Research Council Canada, Northern Ontario Heritage Fund, Atomic Energy of Canada, Ltd., Ontario Power Generation, High Performance Computing Virtual Laboratory, Canada Foundation for Innovation, Canada Research Chairs; US: Department of Energy, National Energy Research Scientific Computing Center, Alfred P. Sloan Foundation; UK: Science and Technology Facilities Council; Portugal: Fundacao para a Ciencia e a Tecnologia. We thank the SNO technical staff for their strong contributions. We thank Vale (formerly Inco, Ltd.) for hosting this project. NR 50 TC 3 Z9 3 U1 12 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0550-3213 EI 1873-1562 J9 NUCL PHYS B JI Nucl. Phys. B PD JUL PY 2016 VL 908 BP 30 EP 51 DI 10.1016/j.nuclphysb.2016.04.035 PG 22 WC Physics, Particles & Fields SC Physics GA DN8MU UT WOS:000377334000004 ER PT J AU Cao, J Luk, KB AF Cao, Jun Luk, Kam-Biu TI An overview of the Daya Bay reactor neutrino experiment SO NUCLEAR PHYSICS B LA English DT Article ID LOADED LIQUID SCINTILLATOR; ANTINEUTRINO SPECTRA; BASE-LINE; OSCILLATIONS; SYSTEM AB The Daya Bay Reactor Neutrino Experiment discovered an unexpectedly large neutrino oscillation related to the mixing angle theta(13) in 2012. This finding paved the way to the next generation of neutrino oscillation experiments. In this article, we review the history, featured design, and scientific results of Daya Bay. Prospects of the experiment are also described. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3). C1 [Cao, Jun] Inst High Energy Phys, Beijing 100039, Peoples R China. [Luk, Kam-Biu] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Luk, Kam-Biu] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Cao, J (reprint author), Inst High Energy Phys, Beijing 100039, Peoples R China. EM caoj@ihep.ac.cn; k_luk@berkeley.edu RI Cao, Jun/G-8701-2012 OI Cao, Jun/0000-0002-3586-2319 FU National Natural Science Foundation of China [11225525]; U.S. Department of Energy [OHEP DE-AC02-05CH11231] FX We would like to thank Jie Zhao for preparing Fig. 5. J.C. is partially supported by the National Natural Science Foundation of China (11225525) and K.B.L. is partially supported by the U.S. Department of Energy, OHEP DE-AC02-05CH11231. NR 37 TC 2 Z9 2 U1 3 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0550-3213 EI 1873-1562 J9 NUCL PHYS B JI Nucl. Phys. B PD JUL PY 2016 VL 908 BP 62 EP 73 DI 10.1016/j.nuclphysb.2016.04.034 PG 12 WC Physics, Particles & Fields SC Physics GA DN8MU UT WOS:000377334000006 ER PT J AU Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Anderson, T Ansseau, I Archinger, M Arguelles, C Arlen, TC Auffenberg, J Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, JB Becker, KH Beiser, E Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blumenthal, J Boersma, DJ Bohm, C Borner, M Bos, F Bose, D Boser, S Botner, O Braun, J Brayeur, L Bretz, HP Buzinsky, N Casey, J Casier, M Cheung, E Chirkin, D Christov, A Clark, K Classen, L Coenders, S Collin, GH Conrad, JM Cowen, DF Silva, AHC Daughhetee, J Davis, JC Day, M de Andre, JPAM De Clercq, C Rosendo, ED Dembinski, H De Ridder, S Desiati, P de Vries, KD de Wasseige, G de With, M De Young, T Diaz-Velez, JC di Lorenzo, V Dumm, JP Dunkman, M Eberhardt, B Ehrhardt, T Eichmann, B Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fosig, CC Fuchs, T Gaisser, TK Gaior, R Gallagher, J Gerhardt, L Ghorbani, K Gier, D Gladstone, L Glagla, M Glusenkamp, T Goldschmidt, A Golup, G Gonzalez, JG Gora, D Grant, D Griffith, Z Gross, A Ha, C Haack, C Ismail, AH Hallgren, A Halzen, F Hansen, E Hansmann, B Hanson, K Hebecker, D Heereman, D Helbing, K Hellauer, R Hickford, S Hignight, J Hill, GC Hoffman, KD Hoffmann, R Holzapfel, K Homeier, A Hoshina, K Huang, F Huber, M Huelsnitz, W Hulth, PO Hultqvist, K In, S Ishihara, A Jacobi, E Japaridze, GS Jeong, M Jero, K Jones, BJP Jurkovic, M Kappes, A Karg, T Karle, A Kauer, M Keivani, A Kelley, JL Kemp, J Kheirandish, A Kiryluk, J Klein, SR Kohnen, G Koirala, R Kolanoski, H Konietz, R Kopke, L Kopper, C Kopper, S Koskinen, DJ Kowalski, M Krings, K Kroll, G Kroll, M Kruckl, G Kunnen, J Kurahashi, N Kuwabara, T Labare, M Lanfranchi, JL Larson, MJ Lesiak-Bzdak, M Leuermann, M Leuner, J Lu, L Lunemann, J Madsen, J Maggi, G Mahn, KBM Mandelartz, M Maruyama, R Mase, K Matis, HS Maunu, R McNally, F Meagher, K Medici, M Meli, A Menne, T Merino, G Meures, T Miarecki, S Middell, E Mohrmann, L Montaruli, T Morse, R Nahnhauer, R Naumann, U Neer, G Niederhausen, H Nowicki, SC Nygren, DR Pollmann, AO Olivas, A Omairat, A O'Murchadha, A Palczewski, T Pandya, H Pankova, DV Paua, L Pepper, JA de los Heros, CP Pfendner, C Pieloth, D Pinat, E Posselt, J Price, PB Przybylski, GT Quinnan, M Raab, C Radel, L Rameez, M Rawlins, K Reimann, R Relich, M Resconi, E Rhode, W Richman, M Richter, S Riedel, B Robertson, S Rongen, M Rott, C Ruhe, T Ryckbosch, D Sabbatini, L Sander, HG Sandrock, A Sandroos, J Sarkart, S Schatto, K Schimp, M Schmidt, T Schoenen, S Schoneberg, S Schonwald, A Schulte, L Schumacher, L Seckel, D Seunarine, S Soldin, D Song, M Spiczak, GM Spiering, C Stahlberg, M Stamatikos, M Stanev, T Stasik, A Steuer, A Stezelberger, T Stokstad, RG Stossl, A Strom, R Strotjohann, NL Sullivan, GW Sutherland, M Taavola, H Taboada, I Tatar, J Ter-Antonyan, S Terliuk, A Tesic, G Tilav, S Toale, PA Tobin, MN Toscano, S Tosi, D Tselengidou, M Turcati, A Unger, E Usner, M Vallecorsa, S Vandenbroucke, J van Eijndhoven, N Vanheule, S van Santen, J Veenkamp, J Vehring, M Voge, M Vraeghe, M Walck, C Wallace, A Wallraff, M Wandkowsky, N Weaver, C Wendt, C Westerhoff, S Whelan, BJ Wiebe, K Wiebusch, CH Wille, L Williams, DR Wills, L Wissing, H Wolf, M Wood, TR Woschnagg, K Xu, DL Xu, XW Xu, Y Yanez, JP Yodh, G Yoshida, S Zoll, M AF Aartsen, M. G. Abraham, K. Ackermann, M. Adams, J. Aguilar, J. A. Ahlers, M. Ahrens, M. Altmann, D. Anderson, T. Ansseau, I. Archinger, M. Arguelles, C. Arlen, T. C. Auffenberg, J. Bai, X. Barwick, S. W. Baum, V. Bay, R. Beatty, J. J. Tjus, J. Becker Becker, K. -H. Beiser, E. Berghaus, P. Berley, D. Bernardini, E. Bernhard, A. Besson, D. Z. Binder, G. Bindig, D. Bissok, M. Blaufuss, E. Blumenthal, J. Boersma, D. J. Bohm, C. Boerner, M. Bos, F. Bose, D. Boeser, S. Botner, O. Braun, J. Brayeur, L. Bretz, H. -P. Buzinsky, N. Casey, J. Casier, M. Cheung, E. Chirkin, D. Christov, A. Clark, K. Classen, L. Coenders, S. Collin, G. H. Conrad, J. M. Cowen, D. F. Silva, A. H. Cruz Daughhetee, J. Davis, J. C. Day, M. de Andre, J. P. A. M. De Clercq, C. Rosendo, E. del Pino Dembinski, H. De Ridder, S. Desiati, P. de Vries, K. D. de wasseige, G. de With, M. De Young, T. Diaz-Velez, J. C. di Lorenzo, V. Dumm, J. P. Dunkman, M. Eberhardt, B. Ehrhardt, T. Eichmann, B. Euler, S. Evenson, P. A. Fahey, S. Fazely, A. R. Feintzeig, J. Felde, J. Filimonov, K. Finley, C. Flis, S. Foesig, C. -C. Fuchs, T. Gaisser, T. K. Gaior, R. Gallagher, J. Gerhardt, L. Ghorbani, K. Gier, D. Gladstone, L. Glagla, M. Gluesenkamp, T. Goldschmidt, A. Golup, G. Gonzalez, J. G. Gora, D. Grant, D. Griffith, Z. Gross, A. Ha, C. Haack, C. Ismail, A. Haj Hallgren, A. Halzen, F. Hansen, E. Hansmann, B. Hanson, K. Hebecker, D. Heereman, D. Helbing, K. Hellauer, R. Hickford, S. Hignight, J. Hill, G. C. Hoffman, K. D. Hoffmann, R. Holzapfel, K. Homeier, A. Hoshina, K. Huang, F. Huber, M. Huelsnitz, W. Hulth, P. O. Hultqvist, K. In, S. Ishihara, A. Jacobi, E. Japaridze, G. S. Jeong, M. Jero, K. Jones, B. J. P. Jurkovic, M. Kappes, A. Karg, T. Karle, A. Kauer, M. Keivani, A. Kelley, J. L. Kemp, J. Kheirandish, A. Kiryluk, J. Klein, S. R. Kohnen, G. Koirala, R. Kolanoski, H. Konietz, R. Koepke, L. Kopper, C. Kopper, S. Koskinen, D. J. Kowalski, M. Krings, K. Kroll, G. Kroll, M. Krueckl, G. Kunnen, J. Kurahashi, N. Kuwabara, T. Labare, M. Lanfranchi, J. L. Larson, M. J. Lesiak-Bzdak, M. Leuermann, M. Leuner, J. Lu, L. Luenemann, J. Madsen, J. Maggi, G. Mahn, K. B. M. Mandelartz, M. Maruyama, R. Mase, K. Matis, H. S. Maunu, R. McNally, F. Meagher, K. Medici, M. Meli, A. Menne, T. Merino, G. Meures, T. Miarecki, S. Middell, E. Mohrmann, L. Montaruli, T. Morse, R. Nahnhauer, R. Naumann, U. Neer, G. Niederhausen, H. Nowicki, S. C. Nygren, D. R. Pollmann, A. Obertacke Olivas, A. Omairat, A. O'Murchadha, A. Palczewski, T. Pandya, H. Pankova, D. V. Paua, L. Pepper, J. A. de los Heros, C. Perez Pfendner, C. Pieloth, D. Pinat, E. Posselt, J. Price, P. B. Przybylski, G. T. Quinnan, M. Raab, C. Raedel, L. Rameez, M. Rawlins, K. Reimann, R. Relich, M. Resconi, E. Rhode, W. Richman, M. Richter, S. Riedel, B. Robertson, S. Rongen, M. Rott, C. Ruhe, T. Ryckbosch, D. Sabbatini, L. Sander, H. -G. Sandrock, A. Sandroos, J. Sarkart, S. Schatto, K. Schimp, M. Schmidt, T. Schoenen, S. Schoeneberg, S. Schoenwald, A. Schulte, L. Schumacher, L. Seckel, D. Seunarine, S. Soldin, D. Song, M. Spiczak, G. M. Spiering, C. Stahlberg, M. Stamatikos, M. Stanev, T. Stasik, A. Steuer, A. Stezelberger, T. Stokstad, R. G. Stoessl, A. Stroem, R. Strotjohann, N. L. Sullivan, G. W. Sutherland, M. Taavola, H. Taboada, I. Tatar, J. Ter-Antonyan, S. Terliuk, A. Tesic, G. Tilav, S. Toale, P. A. Tobin, M. N. Toscano, S. Tosi, D. Tselengidou, M. Turcati, A. Unger, E. Usner, M. Vallecorsa, S. Vandenbroucke, J. van Eijndhoven, N. Vanheule, S. van Santen, J. Veenkamp, J. Vehring, M. Voge, M. Vraeghe, M. Walck, C. Wallace, A. Wallraff, M. Wandkowsky, N. Weaver, Ch. Wendt, C. Westerhoff, S. Whelan, B. J. Wiebe, K. Wiebusch, C. H. Wille, L. Williams, D. R. Wills, L. Wissing, H. Wolf, M. Wood, T. R. Woschnagg, K. Xu, D. L. Xu, X. W. Xu, Y. Yanez, J. P. Yodh, G. Yoshida, S. Zoll, M. TI Neutrino oscillation studies with IceCube-DeepCore SO NUCLEAR PHYSICS B LA English DT Article ID SOUTH-POLE; SYSTEM; MATTER; ICE AB IceCube, a gigaton-scale neutrino detector located at the South Pole, was primarily designed to search for astrophysical neutrinos with energies of PeV and higher. This goal has been achieved with the detection of the highest energy neutrinos to date. At the other end of the energy spectrum, the DeepCore extension lowers the energy threshold of the detector to approximately 10 GeV and opens the door for oscillation studies using atmospheric neutrinos. An analysis of the disappearance of these neutrinos has been completed, with the results produced being complementary with dedicated oscillation experiments. Following a review of the detector principle and performance, the method used to make these calculations, as well as the results, is detailed. Finally, the future prospects of IceCube-DeepCore and the next generation of neutrino experiments at the South Pole (IceCube-Gen2, specifically the PINGU sub-detector) are briefly discussed. (C) 2016 Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3). C1 [Auffenberg, J.; Bissok, M.; Blumenthal, J.; Gier, D.; Glagla, M.; Haack, C.; Hansmann, B.; Kemp, J.; Konietz, R.; Leuermann, M.; Leuner, J.; Paua, L.; Raedel, L.; Reimann, R.; Rongen, M.; Schimp, M.; Schoenen, S.; Schumacher, L.; Stahlberg, M.; Vehring, M.; Wallraff, M.; Wiebusch, C. H.] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany. [Aartsen, M. G.; Hill, G. C.; Robertson, S.; Wallace, A.; Whelan, B. J.] Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia. [Rawlins, K.] Univ Alaska Anchorage, Dept Phys & Astron, 3211 Providence Dr, Anchorage, AK 99508 USA. [Japaridze, G. S.] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA. 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Cruz; Gluesenkamp, T.; Gora, D.; Jacobi, E.; Karg, T.; Kowalski, M.; Middell, E.; Mohrmann, L.; Nahnhauer, R.; Schoenwald, A.; Spiering, C.; Stasik, A.; Stoessl, A.; Strotjohann, N. L.; Terliuk, A.; Usner, M.; van Santen, J.; Yanez, J. P.] DESY, D-15735 Zeuthen, Germany. [Aguilar, J. A.; Ansseau, I.; Hoshina, K.] Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Tokyo 1130032, Japan. [Stamatikos, M.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RP Koskinen, DJ (reprint author), Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.; Grant, D (reprint author), Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada.; Boser, S (reprint author), Johannes Gutenberg Univ Mainz, Inst Phys, Staudinger Weg 7, D-55099 Mainz, Germany.; Clark, K (reprint author), Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. EM sboeser@uni-mainz.de; kclark@physics.utoronto.ca; drg@ualberta.ca; koskinen@nbi.ku.dk RI Tjus, Julia/G-8145-2012; Maruyama, Reina/A-1064-2013; Beatty, James/D-9310-2011; Wiebusch, Christopher/G-6490-2012; Koskinen, David/G-3236-2014; OI Maruyama, Reina/0000-0003-2794-512X; Beatty, James/0000-0003-0481-4952; Wiebusch, Christopher/0000-0002-6418-3008; Koskinen, David/0000-0002-0514-5917; Sarkar, Subir/0000-0002-3542-858X; Arguelles Delgado, Carlos/0000-0003-4186-4182 FU U.S. National Science Foundation-Office of Polar Programs; U.S. National Science Foundation-Physics Division; University of Wisconsin Alumni Research Foundation; Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin-Madison; Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy; National Energy Research Scientific Computing Center; Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada; WestGrid and Compute/Calcul Canada; Swedish Research Council; Swedish Polar Research Secretariat; Swedish National Infrastructure for Computing (SNIC); Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF); Deutsche Forschungsgemeinschaft (DFG); Helmholtz Alliance for Astroparticle Physics (HAP); Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO); FWO Odysseus programme; Flanders Institute to encourage scientific and technological research in industry (IWT); Belgian Federal Science Policy Office (Belspo); University Of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Villum Fonden; Danish National Research Foundation (DNRF), Denmark FX We acknowledge the support from the following agencies: U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, the Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin-Madison, the Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy, and National Energy Research Scientific Computing Center, the Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada, WestGrid and Compute/Calcul Canada; Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage scientific and technological research in industry (IWT), Belgian Federal Science Policy Office (Belspo); University Of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); the Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Villum Fonden, Danish National Research Foundation (DNRF), Denmark. NR 33 TC 0 Z9 0 U1 3 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0550-3213 EI 1873-1562 J9 NUCL PHYS B JI Nucl. Phys. B PD JUL PY 2016 VL 908 BP 161 EP 177 DI 10.1016/j.nuclphysb.2016.03.028 PG 17 WC Physics, Particles & Fields SC Physics GA DN8MU UT WOS:000377334000012 ER PT J AU Karaseov, PA Karabeshkin, KV Mongo, EE Titov, AI Ullah, MW Kuronen, A Djurabekova, F Nordlund, K AF Karaseov, P. A. Karabeshkin, K. V. Mongo, E. E. Titov, A. I. Ullah, M. W. Kuronen, A. Djurabekova, F. Nordlund, K. TI Experimental study and MD simulation of damage formation in GaN under atomic and molecular ion irradiation SO VACUUM LA English DT Article; Proceedings Paper CT 22nd International Conference on the Interaction of Ions with Surfaces CY AUG 20-24, 2015 CL Moscow, RUSSIA SP Russian Federat, Minist Educ & Sci, Russian Acad Sci, Natl Nucl Res Univ, Moscow State Univ, St Petersburg State Polytechn Univ, Moscow Aviat Inst, Yaroslavl State Univ, Russian Acad Sci, Inst Microelectron Technol DE Ion beam irradiation; Radiation-induced defects; GaN; MD simulations; Molecular ions; Cluster ions ID COLLISION CASCADES; DYNAMICS; SEMICONDUCTORS; IMPLANTATION AB Structure damage formation in GaN under light P and heavy Ag monatomic and small molecular PF4 ions is studied by RBS/C and classical molecular dynamics (MD) simulations. Molecules are found to be most efficient in surface amorphization, whereas in the sample bulk Ag ions produce more damage than others. Cumulative MD simulations reveal nonlinear increase of big defect cluster generation in dense collision cascades formed by molecules at the surface vicinity and along most part of Ag ion path. Creation of these big defect clusters intensifies all processes responsible for stable damage formation, in particular, it is one of the reasons of experimentally observed peculiarities of damage production. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Karaseov, P. A.; Karabeshkin, K. V.; Mongo, E. E.; Titov, A. I.] St Petersburg Polytech Univ, Dept Phys Elect, Peter Great St,29 Polytech Skaya St, St Petersburg 195251, Russia. [Ullah, M. W.; Kuronen, A.; Djurabekova, F.; Nordlund, K.] Univ Helsinki, Dept Phys, POB 43, FIN-00014 Helsinki, Finland. [Ullah, M. W.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Karaseov, PA (reprint author), St Petersburg Polytech Univ, Dept Phys Elect, Peter Great St,29 Polytech Skaya St, St Petersburg 195251, Russia. EM platon.karaseov@spbstu.ru RI Titov, Andrey/A-4608-2017; Ullah, Mohammad/E-1526-2017; OI Titov, Andrey/0000-0003-4933-9534; Ullah, Mohammad/0000-0001-6190-591X; Djurabekova, Flyura/0000-0002-5828-200X; Nordlund, Kai/0000-0001-6244-1942 NR 19 TC 0 Z9 0 U1 5 U2 23 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0042-207X J9 VACUUM JI Vacuum PD JUL PY 2016 VL 129 BP 166 EP 169 DI 10.1016/j.vacuum.2016.01.011 PG 4 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA DN8FB UT WOS:000377313500029 ER PT J AU Rubin, MB Vorobiev, O Vitali, E AF Rubin, M. B. Vorobiev, O. Vitali, E. TI A thermomechanical anisotropic model for shock loading of elastic-plastic and elastic-viscoplastic materials with application to jointed rock SO COMPUTATIONAL MECHANICS LA English DT Article DE Anisotropic elasticity; Anisotropic plasticity; Large deformations; Plasticity; Thermomechanical; Viscoplasticity ID 2ND LAW; MICROSTRUCTURAL VARIABLES; CONSTITUTIVE-EQUATIONS; THERMODYNAMICS; TERMS AB A large deformation thermomechanical model is developed for shock loading of a material that can exhibit elastic and inelastic anisotropy. Use is made of evolution equations for a triad of microstructural vectors which model elastic deformations and directions of anisotropy. Specific constitutive equations are presented for a material with orthotropic elastic response. The rate of inelasticity depends on an orthotropic yield function that can be used to model weak fault planes with failure in shear and which exhibits a smooth transition to isotropic response at high compression. Moreover, a robust, strongly objective numerical algorithm is proposed for both rate-independent and rate-dependent response. The predictions of the continuum model are examined by comparison with exact steady-state solutions. Also, the constitutive equations are used to obtain a simplified continuum model of jointed rock which is compared with high fidelity numerical solutions that model a persistent system of joints explicitly in the rock medium. C1 [Rubin, M. B.] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel. [Vorobiev, O.; Vitali, E.] Lawrence Livermore Natl Lab, L-286,POB 808, Livermore, CA 94550 USA. RP Vorobiev, O (reprint author), Lawrence Livermore Natl Lab, L-286,POB 808, Livermore, CA 94550 USA. EM mbrubin@tx.technion.ac.il; vorobiev1@llnl.gov; vitali1@llnl.gov FU Lawrence National Laboratory [DE-AC52-07NA27344]; MB Rubin's Gerard Swope Chair in Mechanics FX The Source Physics Experiments (SPE) would not have been possible without the support of many people from several organizations. The authors wish to express their gratitude to the National Nuclear Security Administration, Defense Nuclear Nonproliferation Research and Development (DNN R&D), and the SPE working group, a multi-institutional and interdisciplinary group of scientists and engineers. This work was done by Lawrence National Laboratory under Contract DE-AC52-07NA27344. This research was also partially supported by MB Rubin's Gerard Swope Chair in Mechanics. NR 28 TC 0 Z9 0 U1 3 U2 7 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0178-7675 EI 1432-0924 J9 COMPUT MECH JI Comput. Mech. PD JUL PY 2016 VL 58 IS 1 BP 107 EP 128 DI 10.1007/s00466-016-1284-0 PG 22 WC Mathematics, Interdisciplinary Applications; Mechanics SC Mathematics; Mechanics GA DN6LU UT WOS:000377187000007 ER PT J AU Larson, J Billups, SC AF Larson, Jeffrey Billups, Stephen C. TI Stochastic derivative-free optimization using a trust region framework SO COMPUTATIONAL OPTIMIZATION AND APPLICATIONS LA English DT Article DE Derivative-free optimization; Stochastic optimization; Model-based trust region methods ID APPROXIMATION AB This paper presents a trust region algorithm to minimize a function f when one has access only to noise-corrupted function values . The model-based algorithm dynamically adjusts its step length, taking larger steps when the model and function agree and smaller steps when the model is less accurate. The method does not require the user to specify a fixed pattern of points used to build local models and does not repeatedly sample points. If f is sufficiently smooth and the noise is independent and identically distributed with mean zero and finite variance, we prove that our algorithm produces iterates such that the corresponding function gradients converge in probability to zero. We present a prototype of our algorithm that, while simplistic in its management of previously evaluated points, solves benchmark problems in fewer function evaluations than do existing stochastic approximation methods. C1 [Larson, Jeffrey] Argonne Natl Lab, 9700 S Cass Ave,Bldg 240, Lemont, IL 60439 USA. [Billups, Stephen C.] Univ Colorado, POB 173364,CB 170, Denver, CO 80217 USA. RP Larson, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 240, Lemont, IL 60439 USA. EM jmlarson@anl.gov; Stephen.Billups@ucdenver.edu OI Billups, Stephen/0000-0003-3627-0793 FU U.S. Department of Energy, Office of Science [DE-AC02-06CH11357] FX We thank Alexandre Proutiere for providing critical insights that allowed this work to be completed. We also thank Katya Scheinberg and an anonymous referee for alerting us to errors in earlier drafts of our analysis. We thank Layne Watson for sending us the Fortran code for QNSTOP. This material is based upon work supported by the U.S. Department of Energy, Office of Science, under Contract DE-AC02-06CH11357. We thank Gail Pieper for her useful language editing. NR 26 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0926-6003 EI 1573-2894 J9 COMPUT OPTIM APPL JI Comput. Optim. Appl. PD JUL PY 2016 VL 64 IS 3 BP 619 EP 645 DI 10.1007/s10589-016-9827-z PG 27 WC Operations Research & Management Science; Mathematics, Applied SC Operations Research & Management Science; Mathematics GA DN2CP UT WOS:000376872000001 ER PT J AU Patton, HJ AF Patton, Howard J. TI A physical basis for M-s-yield scaling in hard rock and implications for late-time damage of the source medium SO GEOPHYSICAL JOURNAL INTERNATIONAL LA English DT Article DE Seismic monitoring and test-ban treaty verification; Surface waves and free oscillations; Computational seismology ID UNDERGROUND NUCLEAR-EXPLOSIONS; JOINT VERIFICATION EXPERIMENT; ADVANCED SEISMIC ANALYSES; RIVER TEST-SITE; SURFACE-WAVES; SOURCE MODELS; TECTONIC RELEASE; EARTHQUAKES; DETONATIONS; RADIATION AB Surface wave magnitude M-s for a compilation of 72 nuclear tests detonated in hard rock media for which yields and burial depths have been reported in the literature is shown to scale with yield W as a+b x log[W], where a=2.50+/-0.08 and b=0.80+/-0.05. While the exponent b is consistent with an M-s scaling model for fully coupled, normal containment-depth explosions, the intercept a is offset 0.45 magnitude units lower than the model. The cause of offset is important to understand in terms of the explosion source. Hard rock explosions conducted in extensional and compressional stress regimes show similar offsets, an indication that the tectonic setting in which an explosion occurs plays no role causing the offset. The scaling model accounts for the effects of source medium material properties on the generation of 20-s period Rayleigh wave amplitudes. Aided by thorough characterizations of the explosion and tectonic release sources, an extensive analysis of the 1963 October 26 Shoal nuclear test detonated in granite 27 miles southeast of Fallon NV shows that the offset is consistent with the predictions of a material damage source model related to non-linear stress wave interactions with the free surface. This source emits Rayleigh waves with polarity opposite to waves emitted by the explosion. The Shoal results were extended to analyse surface waves from the 1962 February 15 Hardhat nuclear test, the 1988 September 14 Soviet Joint Verification Experiment, and the anomalous 1979 August 18 northeast Balapan explosion which exhibits opposite polarity, azimuth-independent source component U-1 compared to an explosion. Modelling these tests shows that Rayleigh wave amplitudes generated by the damage source are nearly as large as or larger than amplitudes from the explosion. As such, destructive interference can be drastic, introducing metastable conditions due to the sensitivity of reduced amplitudes to Rayleigh wave initial phase angles of the explosion and damage sources. This meta-stability is a likely source of scatter in M-s-yield scaling observations. The agreement of observed scaling exponent b with the model suggests that the damage source strength does not vary much with yield, in contrast to explosions conducted in weak media where M-s scaling rates are greater than the model predicts, and the yield dependence of the damage source strength is significant. This difference in scaling behaviour is a consequence of source medium material properties. C1 [Patton, Howard J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Patton, HJ (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM patton@lanl.gov FU LANL [DE-AC52-06NA25946] FX I am very grateful to Profs Paul G. Richards of Lamont-Doherty Earth Observatory, Columbia University, New York, USA, and Christopher M. Wright of the School of Physical, Environmental and Mathematical Science, The University of New South Wales, Canberra, Australia for sharing their respective compilations of nuclear explosions with reported yields, depths of burial, etc. Their willingness to share this information was an important enabler for the body of work reported herein. I thank Dr Neil Selby of Blacknest AWE for providing amplitude data used in the study of Shoal and station Ms determinations from Blacknest's explosion catalogue. Drs Zhen Huang and Rod Whitaker of Los Alamos National Laboratory (LANL) assisted with digitization of records plotted in Figs 5 and 6, and Dr Michael Cleveland (LANL) provided a helpful review of the manuscript before it was submitted to journal. Dr Jeffry Stevens of Leidos, Inc. reviewed the submitted manuscript. I benefitted from technical interactions with Dr Stevens over the years on topics related to surface-wave generation by underground explosions. This work was performed at LANL under Award Number DE-AC52-06NA25946, and the manuscript has a LANL Unlimited Release Number LA-UR-15-28695. NR 48 TC 1 Z9 1 U1 0 U2 2 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0956-540X EI 1365-246X J9 GEOPHYS J INT JI Geophys. J. Int. PD JUL PY 2016 VL 206 IS 1 BP 191 EP 204 DI 10.1093/gji/ggw140 PG 14 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA DN6RV UT WOS:000377204400012 ER PT J AU Manin, J Bardi, M Pickett, LM Payri, R AF Manin, J. Bardi, M. Pickett, L. M. Payri, R. TI Boundary condition and fuel composition effects on injection processes of high-pressure sprays at the microscopic level SO INTERNATIONAL JOURNAL OF MULTIPHASE FLOW LA English DT Article DE Injection; Sprays; Fuels; Microscopy ID DIFFERENT COMBUSTION VESSELS; DIESEL SPRAYS; PENETRATION AB Detailed imaging of n-dodecane and ethanol sprays injected in a constant-flow, high-pressure, high temperature optically accessible chamber was performed. High-speed, diffused back-illuminated long-distance microscopy was used to resolve the spray structure in the near-nozzle field. The effect of injection and ambient pressures, as well as fuel temperature and composition have been studied through measurements of the spray penetration rates, hydraulic delays and spreading angles. Additional information such as transient flow velocities have been extracted from the measurements and compared to a control-volume spray model. The analysis demonstrated the influence of outlet flow on spray development with lower penetration velocities and wider spreading angles during the transients (start and end of injection) than during the quasi-steady period of the injection. The effect of fuel composition on penetration was limited, while spreading angle measurements showed wider sprays for ethanol. In contrast, varying fuel temperature led to varying penetration velocities, while spreading angle remained constant during the quasi-steady period of the injection. Fuel temperature affected injector performance, with shorter delays as fuel temperature was increased. The comparisons between predicted and measured penetration rates showed differences suggesting that the transient behavior of the spreading angle of the sprays modified spray development significantly in the near-field. The reasonable agreement between predicted and measured flow velocity at and after the end of injection suggested that the complete mixing assumptions made by the model were valid in the near nozzle region during this period, when injected flow velocities are reduced. Published by Elsevier Ltd. C1 [Manin, J.; Pickett, L. M.] Sandia Natl Labs, 7011 East Ave, Livermore, CA 94550 USA. [Bardi, M.] IFP Energies Nouvelles, 1 & 4 Ave Bois Preau, F-92852 Rueil Malmaison, France. [Payri, R.] Univ Politecn Valencia, CMT Motores Term, Camino Vera S-N, E-46022 Valencia, Spain. RP Manin, J (reprint author), Sandia Natl Labs, 7011 East Ave, Livermore, CA 94550 USA. EM jmanin@sandia.gov RI Moteur, Direction TAE/C-1458-2013; IFPEN, Publications/A-8028-2008; OI Payri, Raul/0000-0001-7428-5510 FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; U.S. Department of Energy, Office of Vehicle Technologies FX The authors wish to thank Chris Carlen from Sandia National Laboratories for designing and manufacturing specific ultra-fast LEDs, as well as Jose Enrique del Rey and Juan Pablo Viera from CMT-Motores Termicos for their support during the experiments. Support for the research carried out by Julien Manin at CMT-Motores Termicos was provided by the U.S. Department of Energy, Office of Vehicle Technologies. Sandia is a multi-program 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. NR 29 TC 3 Z9 3 U1 6 U2 10 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0301-9322 EI 1879-3533 J9 INT J MULTIPHAS FLOW JI Int. J. Multiph. Flow PD JUL PY 2016 VL 83 BP 267 EP 278 DI 10.1016/j.ijmultiphaseflow.2015.12.001 PG 12 WC Mechanics SC Mechanics GA DM9UE UT WOS:000376710400022 ER PT J AU Hamada, Y O'Connor, BL Orr, AB Wuthrich, KK AF Hamada, Yuki O'Connor, Ben L. Orr, Andrew B. Wuthrich, Kelsey K. TI Mapping ephemeral stream networks in desert environments using very-high-spatial-resolution multispectral remote sensing SO JOURNAL OF ARID ENVIRONMENTS LA English DT Article DE Ephemeral streams; Desert regions; Very high resolution ID INFORMATION; IMAGERY; VALUES AB Mapping of ephemeral streams in desert environments is crucial to understanding the impacts to hydrologic and ecosystem functions caused by land-use changes. Available mapping methods at the watershed-scale typically underestimate total channel length and the size of channel networks. Although remote sensing is effective for obtaining information on large areas, conventional techniques are often ineffective or cost-prohibitive for complex stream networks in expansive desert regions. Using very high-spatial-resolution imagery, we developed a new algorithm to map desert ephemeral streams in the southwestern U.S., where utility-scale solar energy development is altering the landscape. Knowledge about landscape features such as shrubs and desert pavement and their spatial arrangement was integrated into the algorithm using spectral transformation and spatial statistical operations. The algorithm extracted ephemeral stream lengths approximately 900% greater than those identified in the National Hydrography Dataset. The accuracy in mapping channel areas and centerlines was as high as 92% and 91%, respectively. Although the algorithm captured detailed stream channels, it often underestimated channels obscured by bright soils and sparse vegetation. Although-further improvement is warranted, the algorithm provides an effective means of obtaining detailed information about ephemeral streams, which could make a significant contribution toward improving the hydrological modeling of desert environments. (c) 2016 Published by Elsevier Ltd. C1 [Hamada, Yuki; Orr, Andrew B.; Wuthrich, Kelsey K.] Argonne Natl Lab, Div Environm Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [O'Connor, Ben L.] Univ Illinois, Dept Civil & Mat Engn, Chicago, IL 60607 USA. RP Hamada, Y (reprint author), 9700 South Cass Ave,EVS 240, Argonne, IL 60439 USA. EM yhamada@anl.gov FU Argonne, a DOE Office of Science laboratory [DE-AC02-06CH11357]; DOE's SunShot Initiative [27239] FX The authors thank Katherine E. Rollins and Scott O. Schlueter for their qualitative accuracy assessment. They also thank Karen P. Smith, Mark A. Grippo, and Esther E. Bowen at Argonne National Laboratory, anonymous reviewers involved in the U.S. Department of Energy's (DOE's) SunShot Initiative, and subject matter experts for insightful comments on the manuscript. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a DOE 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 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. The project was funded by DOE's SunShot Initiative (#27239). NR 35 TC 0 Z9 0 U1 5 U2 11 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0140-1963 EI 1095-922X J9 J ARID ENVIRON JI J. Arid. Environ. PD JUL PY 2016 VL 130 BP 40 EP 48 DI 10.1016/j.jaridenv.2016.03.005 PG 9 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA DN1OB UT WOS:000376834200004 ER PT J AU Saka, O Hayashi, K Thomsen, MF AF Saka, O. Hayashi, K. Thomsen, M. F. TI Equatorward evolution of auroras from the poleward auroral boundary SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS LA English DT Article DE N-S aurora; Magnetospheric convection; MI coupling ID GEOSYNCHRONOUS ORBIT; MAGNETIC-FIELD; PLASMA SHEET; CURRENTS; INTENSIFICATIONS; MAGNETOSPHERE; ASSOCIATION; INJECTIONS; SUBSTORMS; ONSET AB An all-sky imager installed at the midnight sector in Dawson City (66.0 degrees in geomagnetic latitude) recorded the equatorward evolution of auroras from the auroral poleward boundary. The auroras evolved as shear layers expanding southeastward with velocities of 1-4 km/s, referred to as N-S auroras, and occurred during the transient intensification of the convection electric fields in the nighttime magnetosphere, as inferred from an electron spectrogram at geosynchronous altitudes. A continuous increase in the inclination angle of the field lines and magnetic field perturbations associated with propagating ionospheric loop currents were observed in the auroral zone during the N-S auroras. Simultaneously, Pc4 pulsations were observed at low latitudes from night to day sectors. We conclude the following: (1) the N-S auroras are an auroral manifestation of the earthward drift of plasma sheet electrons in the equatorial plane associated with transient and localized convection electric fields; (2) the Pc4 pulsations are produced in the magnetosphere by plasma sheet ions in the plasmasphere. The localized convection fields produce a vortical motion of plasmas in the equatorial plane, which may initiate the N-S auroras and ionospheric loop currents in the auroral zone. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Saka, O.] Off Geophys, Ogoori, Japan. [Hayashi, K.] Univ Tokyo, Tokyo, Japan. [Thomsen, M. F.] Los Alamos Natl Lab, Los Alamos, NM USA. RP Saka, O (reprint author), Off Geophys, Ogoori, Japan. FU Canadian Space Agency FX The all-sky images used in the present study are from the Global Aurora Dynamics Campaign, STEP Polar Network. The proton and electron spectrograms are from the Los Alamos magnetospheric plasma analyzer (MPA). We acknowledge I.R. Mann, D.K. Milling and the rest of the CARISMA team for the DWS and FSI data. CARISMA is operated by the University of Alberta, funded by the Canadian Space Agency. We also thank the Equatorial Magnetometer Network at Kyushu University for the low latitude magnetometer data and the WDC for Geomagnetism at Kyoto University. NR 26 TC 0 Z9 0 U1 2 U2 2 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 2016 VL 145 BP 114 EP 124 DI 10.1016/j.jastp.2016.04.012 PG 11 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA DN7BQ UT WOS:000377230700011 ER PT J AU Diaz, LA Lister, TE Parkman, JA Clark, GG AF Diaz, Luis A. Lister, Tedd E. Parkman, Jacob A. Clark, Gemma G. TI Comprehensive process for the recovery of value and critical materials from electronic waste SO JOURNAL OF CLEANER PRODUCTION LA English DT Article DE Electronic waste; Recycling; Precious metals; Critical materials; Electrowinning ID PRINTED-CIRCUIT BOARDS; SELECTIVE RECOVERY; COPPER RECOVERY; METAL RECOVERY; MOBILE PHONE; GOLD; THIOUREA; CYANIDE; IONS AB The development of technologies that contribute to the proper disposal and treatment of electronic waste is not just an environmental need, but an opportunity for the recovery and recycle of valuable metals and critical materials. Value elements in electronic waste include gold, palladium, silver, copper, nickel, and rare earth elements. This paper presents a technical assessment of the steps involved in a scheme that enables efficient recovery of value and critical materials from scrap mobile electronics. An electrochemical recovery process, based on the regeneration of ferric ion as a weak oxidizer, is studied for the selective recovery of base metals while leaving precious metals for separate extraction at reduced chemical demand. A separate process recovers rare earth oxides from magnets in electronics. Recovery and extraction efficiencies ca. 90% were obtained for the extraction of base metals from the non-ferromagnetic fraction in the two different solution matrices tested (sulfuric and hydrochloric acid). The effect of the pre-extraction of base metals in the increase of precious metals extraction efficiency was verified. On the other hand, the extraction of rare earths from the ferromagnetic fraction, performed by means of anaerobic extraction in acid media, was assessed for the selective recovery of rare earths. A comprehensive flow sheet was developed to process electronic waste to value products. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Diaz, Luis A.; Lister, Tedd E.; Parkman, Jacob A.; Clark, Gemma G.] Idaho Natl Lab, Biol & Chem Proc Dept, POB 1625, Idaho Falls, ID 83415 USA. RP Lister, TE (reprint author), Idaho Natl Lab, Biol & Chem Proc Dept, POB 1625, Idaho Falls, ID 83415 USA. EM tedd.lister@inl.gov OI Diaz Aldana, Luis/0000-0003-4895-464X FU Critical Materials Institute; Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office; Battelle Energy Alliance, LLC [DE-AC07-05ID14517] FX This work is supported by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. This manuscript has been authored by Battelle Energy Alliance, LLC under Contract No. DE-AC07-05ID14517. We thank Mark Rea from Advanced Recovery, Inc. for providing the mechanically processed material used for this study. We also thank Byron White and Arnold Erickson for providing analytical services that supported this work. NR 35 TC 1 Z9 1 U1 23 U2 51 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0959-6526 EI 1879-1786 J9 J CLEAN PROD JI J. Clean Prod. PD JUL 1 PY 2016 VL 125 BP 236 EP 244 DI 10.1016/j.jclepro.2016.03.061 PG 9 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Engineering, Environmental; Environmental Sciences SC Science & Technology - Other Topics; Engineering; Environmental Sciences & Ecology GA DM9PF UT WOS:000376697500020 ER PT J AU Petrone, F Higgins, PS Bissonnette, NP Kanvinde, AM AF Petrone, F. Higgins, P. S. Bissonnette, N. P. Kanvinde, A. M. TI The cross-aisle seismic performance of storage rack base connections SO JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH LA English DT Article DE Seismic response; Storage racks; Base connections; Finite element simulation ID BEHAVIOR AB Steel storage racks used in retail stores and warehouses are seismically designed as moment resisting frames in the down-aisle direction, and braced frames in the cross-aisle direction. While their down-aisle response is relatively well understood, there is little understanding of their cross-aisle response, especially as it pertains to the desired mode of inelastic deformation and associated design methods. Results are presented from six full scale tests on braced frames representing storage racks in the cross-aisle direction. These tests investigate the base plate thickness and dimensions, and the upright (column) cross section. The experiments indicate that inelastic deformation in the base plate provides stable hysteretic response with significant ductility and energy dissipation. Ductile tearing is also observed in welds connecting the base plate to the upright. However, it does not appear to negatively influence the hysteretic response. The tests are complemented by Finite Element (FE) simulations of the base connections. These simulations provide insights into internal force distributions within the connections. Based on these insights, analytical equations are proposed for characterizing the backbone curve of the hysteretic response, for use in displacement based design methods. It is determined that the current approach for characterizing design forces in the anchors is unconservative, since it does not incorporate the effects of strain hardening or the membrane action as the base plate undergoes large deformations. A new approach which incorporates these phenomena is presented, and determined to be significantly more accurate. Limitations of the study are outlined and directions for future work are identified. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Petrone, F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Higgins, P. S.] Peter S Higgins & Associates, Malibu, CA USA. [Bissonnette, N. P.] Frazier Ind Co, Long Valley, NJ USA. [Kanvinde, A. M.] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA. RP Kanvinde, AM (reprint author), Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA. EM kanvinde@ucdavis.edu NR 29 TC 1 Z9 1 U1 2 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0143-974X EI 1873-5983 J9 J CONSTR STEEL RES JI J. Constr. Steel. Res. PD JUL PY 2016 VL 122 BP 520 EP 531 DI 10.1016/j.jcsr.2016.04.014 PG 12 WC Construction & Building Technology; Engineering, Civil SC Construction & Building Technology; Engineering GA DN1HQ UT WOS:000376817300041 ER PT J AU Wereszczak, AA Waters, SB Parten, RJ Pye, LD AF Wereszczak, Andrew A. Waters, Shirley B. Parten, Randy J. Pye, L. David TI Sub-micron fracture mechanism in silica-based glasses activated by permanent densification from high-strain loading SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article DE Silica-based glasses; High-strain-energy fracture; Densification; Fragmentation; Microkernels ID DYNAMIC FRAGMENTATION; STRENGTH AB Several silica-based glasses were fractured at high strain energy via drop-weight testing on small specimens. A cylindrical specimen geometry was chosen to promote initially simple, axisymmetric, and uniform compressive loading. The imposed uniaxial compressive strain at impact was sufficiently high to qualitatively cause permanent densification. Produced fragments were collected for postmortem and a fraction of them, for all the silica-based glasses, consistently had distinct sub-micron-sized fractures (-300-1000 nm), designated here as "microkernels", on their surfaces. They would most often appear as a sub -micron pore on the fragment apparently if the microkernel had popped out as a consequence of the local crack plane running through it, tensile-strain release, and the associated formation of the fragment it was on. No fractographic evidence was found to show the microkernels were associated with local failure initiation. However, their positioning and habit sometimes suggested they were associated with localized crack branching and that they could have influenced secondary fracturing that occurred during overall crushing and comminution and associated fragment size and shape creation. The size range of these microkernels is much too small to affect structural flexure strength of these glasses for most applications but are of a size and concentration that may affect their ballistic, shock, crush, and comminution responses when permanent densification is concomitantly occurring. (C) 2016 Elsevier B.V. All rights reserved. C1 [Wereszczak, Andrew A.; Waters, Shirley B.; Parten, Randy J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Wereszczak, Andrew A.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Pye, L. David] Alfred Univ, New York State Coll Ceram, Little Falls, NY 13365 USA. RP Wereszczak, AA (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM wereszczakaa@ornl.gov FU Purdue University under the Material Science and Technology Division, Work-for-Others (WFO) Program [IAN: 148658801]; DOE [NFE-10-03121]; U.S. Department of Energy; US Army Research Laboratory at the University of Tennessee [W911NF-14-2-0015] FX This research was performed at the Oak Ridge National Laboratory (ORNL) and sponsored by Purdue University under the Material Science and Technology Division, Work-for-Others (WFO) Program, IAN: 148658801, and DOE agreement: NFE-10-03121, with the U.S. Department of Energy. Additional support provided by the US Army Research Laboratory through Contract W911NF-14-2-0015 at the University of Tennessee. NR 25 TC 0 Z9 0 U1 2 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 EI 1873-4812 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD JUL 1 PY 2016 VL 443 BP 172 EP 183 DI 10.1016/j.jnoncrysol.2016.04.029 PG 12 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA DN1PO UT WOS:000376838100026 ER PT J AU Zhang, XY Liu, CX Hu, BX Hu, QH AF Zhang, Xiaoying Liu, Chongxuan Hu, Bill X. Hu, Qinhong TI Grain-Size Based Additivity Models for Scaling Multi-rate Uranyl Surface Complexation in Subsurface Sediments SO MATHEMATICAL GEOSCIENCES LA English DT Article DE Scaling; Additivity model; Uranium surface complexation; Multi-rate mass transfer; Statistical analysis ID MONTE-CARLO-SIMULATION; REACTIVE TRANSPORT; CONTAMINATED SEDIMENTS; DIFFERENTIAL EVOLUTION; URANIUM(VI) DESORPTION; DISSOLUTION RATES; U(VI) DESORPTION; KINETICS; ADSORPTION; UNCERTAINTY AB The additivity model assumed that field-scale reaction properties in a sediment including surface area, reactive site concentration, and reaction rate can be predicted from field-scale grain-size distribution by linearly adding reaction properties estimated in laboratory for individual grain-size fractions. This study evaluated the additivity model in scaling mass transfer-limited, multi-rate uranyl (U(VI)) surface complexation reactions in a contaminated sediment. Experimental data of rate-limited U(VI) desorption in a stirred flow-cell reactor were used to estimate the statistical properties of the rate constants for individual grain-size fractions, which were then used to predict rate-limited U(VI) desorption in the composite sediment. The result indicated that the additivity model with respect to the rate of U(VI) desorption provided a good prediction of U(VI) desorption in the composite sediment. However, the rate constants were not directly scalable using the additivity model. An approximate additivity model for directly scaling rate constants was subsequently proposed and evaluated. The result found that the approximate model provided a good prediction of the experimental results within statistical uncertainty. This study also found that a gravel-size fraction (2 to 8 mm), which is often ignored in modeling U(VI) sorption and desorption, is statistically significant to the U(VI) desorption in the sediment. C1 [Zhang, Xiaoying; Hu, Bill X.] Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA. [Zhang, Xiaoying] Jinan Univ, Coll Life Sci & Technol, Guangzhou 510632, Guangdong, Peoples R China. [Liu, Chongxuan] Pacific NW Natl Lab, 3335 Innovat St, Richland, WA 99352 USA. [Hu, Qinhong] Univ Texas Arlington, Arlington, TX 76019 USA. RP Liu, CX (reprint author), Pacific NW Natl Lab, 3335 Innovat St, Richland, WA 99352 USA. EM chongxuan.liu@pnnl.gov RI Liu, Chongxuan/C-5580-2009 FU US DOE, Office of Science, Biological and Environmental Research (BER), as part of the Subsurface Biogeochemical Research (SBR) Program through Pacific Northwest National Laboratory (PNNL) SBR Science Focus Area (SFA) Research Project; Office of Biological and Environmental Research, US Department of Energy [DE-SC0005394, ER65073] FX This research is supported by the US DOE, Office of Science, Biological and Environmental Research (BER), as part of the Subsurface Biogeochemical Research (SBR) Program through Pacific Northwest National Laboratory (PNNL) SBR Science Focus Area (SFA) Research Project. QH thanks the financial support of the Subsurface Biogeochemical Research Program #DE-SC0005394, Office of Biological and Environmental Research, US Department of Energy, for Project ER65073. The authors thank the anonymous reviewers for their helpful and constructive comments. NR 42 TC 0 Z9 0 U1 5 U2 10 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1874-8961 EI 1874-8953 J9 MATH GEOSCI JI Math Geosci. PD JUL PY 2016 VL 48 IS 5 BP 511 EP 535 DI 10.1007/s11004-015-9620-z PG 25 WC Geosciences, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Geology; Mathematics GA DN2GZ UT WOS:000376883400002 ER PT J AU Cervini-Silva, J Nieto-Camacho, A Kaufhold, S Ufer, K Palacios, E Montoya, A Dathe, W AF Cervini-Silva, Javiera Nieto-Camacho, Antonio Kaufhold, Stephan Ufer, Kristian Palacios, Eduardo Montoya, Ascencion Dathe, Wilfried TI Antiphlogistic effect by zeolite as determined by a murine inflammation model SO MICROPOROUS AND MESOPOROUS MATERIALS LA English DT Article DE Clinoptilolite; Histamine; Adsorption ID WATER-UPTAKE CAPACITY; ANTIINFLAMMATORY ACTIVITY; NATURAL ZEOLITES; MOUSE EAR; CLINOPTILOLITE; ANTIBACTERIAL; BENTONITES; HALLOYSITE; AGENTS; EDEMA AB Natural zeolites are microporous crystalline aluminosilicates with channels and cavities of molecular dimensions of interest for biomedical applications. The antiphlogistic effect was investigated on the basis of a murine inflammation model using 12-O-tetradecanoylphorbol-13-acetate (TPA) as inflammatory agent and the quantification of the activity of myeloperoxidase (MPO), an enzyme that serves as an indicator for neutrophil migration. The zeolite used in this study was collected from San Andres, Cuba, and it provided evidence to show the quantitative adsorption of histamine, a biogenic compound strongly involved in inflammation processes. Furthermore, a related work showed that this zeolite sample is free of hazardous materials and apt for health use. The zeolite of this study contained 65% clinoptilolite, 30% mordenite, and 5% smectite. The application of this zeolite reduced the edema formation induced by TPA within 24 h by 57.2 +/- 18%, while the migration of neutrophils was not altered. The anti-inflammatory activity of zeolite was explained in part due to the quantitative adsorption of histamine, whilst natural cell repair mechanisms appeared not to be influenced. The outcome of this work expanded on reports concluding that antiphlogistic properties of zeolite proven in vivo with mice for inflammatory diseases are important for both oral application (gastrointestinal tract) and topical treatment (skin), too. (C) 2016 Elsevier Inc. All rights reserved. C1 [Cervini-Silva, Javiera] Univ Autonoma Metropolitana, Unidad Cuajimalpa, Dept Proc & Tecnol, Av Vasco de Quiroga 4871, Mexico City 05348, DF, Mexico. [Cervini-Silva, Javiera] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Cervini-Silva, Javiera] NASA, Astrobiol Inst, New York, NY USA. [Nieto-Camacho, Antonio] Univ Nacl Autonoma Mexico, Inst Quim, Lab Pruebas Biol, Ciudad Univ, Mexico City 04510, DF, Mexico. [Kaufhold, Stephan; Ufer, Kristian] BGR Bundesanstalt Geowissensch & Rohstoffe, Stilleweg 2, D-30655 Hannover, Germany. [Palacios, Eduardo] Inst Mexicano Petr, Dept Microscopia Elect, Mexico City 07730, DF, Mexico. [Montoya, Ascencion] Inst Mexicano Petr, Direcc Invest & Posgrado, Mexico City 07730, DF, Mexico. [Dathe, Wilfried] Heck Biopharma GmbH, Gerberstr 15, D-73650 Winterbach, Germany. RP Cervini-Silva, J (reprint author), Univ Autonoma Metropolitana, Unidad Cuajimalpa, Dept Proc & Tecnol, Av Vasco de Quiroga 4871, Mexico City 05348, DF, Mexico.; Dathe, W (reprint author), Heck Biopharma GmbH, Gerberstr 15, D-73650 Winterbach, Germany. EM jcervini@correo.cua.uam.mx; daweidoc@gmx.de FU Universidad Autonoma Metropolitana [UAM-C 33678] FX The authors thank Jaime Ortega Lechuga (UAM-Cuajimalpa), Claudia Rivera Cerecedo and Hector Malagon Rivero (Bioterio, Institute de Fisiologia Celular, UNAM), and Natascha Schleuning (Bundesanstalt fur Geowissenschaften and Rohstoffe, BGR) for the assistance; and the Universidad Autonoma Metropolitana for the support (Grant No. UAM-C 33678). NR 42 TC 0 Z9 0 U1 8 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1387-1811 EI 1873-3093 J9 MICROPOR MESOPOR MAT JI Microporous Mesoporous Mat. PD JUL 1 PY 2016 VL 228 BP 207 EP 214 DI 10.1016/j.micromeso.2016.03.043 PG 8 WC Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DN1DE UT WOS:000376805700024 ER PT J AU Zhang, XD Moore, ME Lee, KM Lukosi, ED Hayward, JP AF Zhang, Xiaodong Moore, Michael E. Lee, Kyung-Min Lukosi, Eric D. Hayward, Jason P. TI Study of cerium diffusion in undoped lithium-6 enriched glass with Rutherford backscattering spectrometry SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article DE Lithium-6 enriched glass; Diffusion coefficient; Activation energy; Fick's second law; Rutherford backscattering spectrometry AB Undoped lithium-6 enriched glasses coated with pure cerium (99.9%) with a gold protection layer on top were heated at three different temperatures (500, 550, and 600 degrees C) for varied durations (1, 2, and 4 h). Diffusion profiles of cerium in such glasses were obtained with the conventional Rutherford backscattering technique. Through fitting the diffusion profiles with the thin-film solution of Fick's second law, diffusion coefficients of cerium with different annealing temperatures and durations were solved. Then, the activation energy of cerium for the diffusion process in the studied glasses was found to be 114 kJ/mol with the Arrhenius equation. Published by Elsevier S.V. C1 [Zhang, Xiaodong; Moore, Michael E.; Lee, Kyung-Min; Lukosi, Eric D.; Hayward, Jason P.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA. [Hayward, Jason P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Zhang, XD (reprint author), Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA. EM xzhang39@utk.edu FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0010314] FX This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Early Career Award no. DE-SC0010314. NR 11 TC 0 Z9 0 U1 4 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X EI 1872-9584 J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD JUL 1 PY 2016 VL 378 BP 8 EP 11 DI 10.1016/j.nimb.2016.04.036 PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA DN1MX UT WOS:000376831200002 ER PT J AU Hattori, K Kojo, T Su, N AF Hattori, Koichi Kojo, Tom Su, Nan TI Mesons in strong magnetic fields: (I) General analyses SO NUCLEAR PHYSICS A LA English DT Article DE Strong magnetic fields; Meson structure; Hadron resonance gas; Inverse magnetic catalysis ID HEAVY-ION COLLISIONS; QUARK MASS GAP; QUANTUM CHROMODYNAMICS; ELECTROMAGNETIC-FIELD; PHASE-TRANSITIONS; CHIRAL SPIRALS; SYMMETRY; EVENT; MODEL AB We study properties of neutral and charged mesons in strong magnetic fields vertical bar eB vertical bar >> Lambda(2)(QCD) with Lambda(QCD) being the QCD renormalization scale. Assuming long-range interactions, we examine magnetic-field dependences of various quantities such as the constituent quark mass, chiral condensate, meson spectra, and meson wavefunctions by analyzing the Schwinger-Dyson and Bethe Salpeter equations. Based on the density of states obtained from these analyses, we extend the hadron resonance gas (HRG) model to investigate thermodynamics at large B. As B increases the meson energy behaves as a slowly growing function of the meson's transverse momenta, and thus a large number of meson states is accommodated in the low energy domain; the density of states at low temperature is proportional to B-2. This extended transverse phase space in the infrared regime significantly enhances the HRG pressure at finite temperature, so that the system reaches the percolation or chiral restoration regime at lower temperature compared to the case without a magnetic field; this simple picture would offer a gauge invariant and intuitive explanation of the inverse magnetic catalysis. (C) 2016 Elsevier B.V. All rights reserved. C1 [Hattori, Koichi] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Hattori, Koichi] RIKEN, Theoret Res Div, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. [Kojo, Tom] Cent China Normal Univ, MOE, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China. [Kojo, Tom] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Kojo, Tom] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [Su, Nan] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany. RP Su, N (reprint author), Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany. EM koichi.hattori@riken.jp; torujj@mail.ccnu.edu.cn; nansu@fias.uni-frankfurt.de FU NSF [PHY09-69790, PHY13-05891]; JSPS [25287066]; Helmholtz International Center for FAIR within LOEWE program FX This work was supported by NSF Grants PHY09-69790 and PHY13-05891 (TX.), JSPS Grants-in-Aid No. 25287066 (K.H.), and the Helmholtz International Center for FAIR within the framework of the LOEWE program launched by the State of Hesse (N.S.). NR 84 TC 5 Z9 5 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD JUL PY 2016 VL 951 BP 1 EP 30 DI 10.1016/j.nuclphysa.2016.03.016 PG 30 WC Physics, Nuclear SC Physics GA DN0ZH UT WOS:000376795100001 ER PT J AU Wang, YX Li, FX AF Wang, Yi-Xiang Li, Fuxiang TI Edge states and phase diagram for graphene under polarized light SO PHYSICA B-CONDENSED MATTER LA English DT Article DE Floquet topological insulator; Phase diagram; Disorder ID TOPOLOGICAL INSULATORS; HALDANE MODEL; PHOTOEMISSION; FIELD; PROBE AB In this work, we investigate the topological phase transitions in graphene under the modulation of circularly polarized light, by analyzing the changes of edge states and its topological structures. A full phase diagram, with several different topological phases, is presented in the parameter space spanned by the driving frequency and light strength. We find that the high-Chern number behavior is very common in the driven system. While the one-photon resonance can create the chiral edge states in the pi-gap, the two-photon resonance will induce the counter-propagating edge modes in the zero-energy gap. When the driving light strength is strong, the number and even the chirality of the edge states may change in the pi-gap. The robustness of the edge states to disorder potential is also examined. We close by discussing the feasibility of experimental proposals. (C) 2016 Elsevier B.V. All rights reserved. C1 [Wang, Yi-Xiang] Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China. [Li, Fuxiang] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Li, Fuxiang] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Wang, YX (reprint author), Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China. EM wangyixiang@jiangnan.edu.cn RI Li, Fuxiang/O-9132-2015 FU Natural Science Foundation of Jiangsu Province, China [BK20140129] FX This work is supported by Natural Science Foundation of Jiangsu Province, China under Grant no. BK20140129. NR 35 TC 1 Z9 1 U1 13 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 EI 1873-2135 J9 PHYSICA B JI Physica B PD JUL 1 PY 2016 VL 492 BP 1 EP 6 DI 10.1016/j.physb.2016.03.029 PG 6 WC Physics, Condensed Matter SC Physics GA DN4HP UT WOS:000377025400001 ER PT J AU Qu, J Blau, PJ Higdon, C Cook, BA AF Qu, Jun Blau, Peter J. Higdon, Clifton Cook, Bruce A. TI Friction behavior of a multi-interface system and improved performance by AlMgB14-TiB2-C and diamond-like-carbon coatings SO TRIBOLOGY INTERNATIONAL LA English DT Article DE Multi-interface system; AlMgB14-TiB2; DLC; Rolling sliding ID WEAR MECHANISMS; FILMS AB This study investigated friction behavior of a bearing system with two interfaces involved: a roller component experiencing rolling-sliding interaction against twin cylinders under point contacts while simultaneously undergoing pure sliding interaction against a socket under a conformal contact. Lubrication modeling predicted a strong correlation between the roller's rolling condition and the system's friction behavior. Experimental observations first validated the analytical predictions using steel and iron components. Diamond-like-carbon (DLC) coating and AlMgB14-TiB2 coating with a carbon topcoat (BAMC) were then applied to the roller and twin cylinders, respectively. Testing and analysis results suggest that the coatings effectively decreased the slip ratio for the roller-cylinder contact and the sliding friction at both bearing interfaces and, as a result, significantly reduced the system frictional torque. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Qu, Jun; Blau, Peter J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, POB 2008, Oak Ridge, TN 37830 USA. [Higdon, Clifton] Bluewater Thermal Solut, Qual, Greenville, SC USA. [Cook, Bruce A.] Ames Lab, Div Mat Sci & Engn, Ames, IA USA. [Blau, Peter J.] Blau Tribol Consulting, North Palm Beach, FL USA. [Cook, Bruce A.] Mat Dynam & Devices, New York, NY USA. RP Qu, J (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, POB 2008, Oak Ridge, TN 37830 USA. EM qujn@ornl.gov OI Qu, Jun/0000-0001-9466-3179 FU US Department of Energy, Office of Energy Efficiency and Renewable Energy, Industrial Technologies Program FX Authors thank Dr. S. Bair at the Center for High-Pressure Rheology at Georgia Institute of Technology for measuring the viscosity pressure coefficient of the lubricant. Research was supported by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Industrial Technologies Program. NR 15 TC 0 Z9 0 U1 8 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-679X EI 1879-2464 J9 TRIBOL INT JI Tribol. Int. PD JUL PY 2016 VL 99 BP 182 EP 186 DI 10.1016/j.triboint.2016.03.022 PG 5 WC Engineering, Mechanical SC Engineering GA DM9TW UT WOS:000376709600019 ER PT J AU Rattner, AS Guillen, DP Joshi, A Garimella, S AF Rattner, Alexander S. Guillen, Donna Post Joshi, Alark Garimella, Srinivas TI Framework and algorithms for illustrative visualizations of time-varying flows on unstructured meshes SO ADVANCES IN ENGINEERING SOFTWARE LA English DT Article DE Flow visualization; Illustrative visualization; Feature detection and tracking; Unstructured meshes; Surface rendering; Two-phase flow AB Photo- and physically realistic techniques are often insufficient for visualization of fluid flow simulations, especially for 3D and time-varying studies. Substantial research effort has been dedicated to the development of non-photorealistic and illustration-inspired visualization techniques for compact and intuitive presentation of such complex datasets. However, a great deal of work has been reproduced in this field, as many research groups have developed specialized visualization software. Additionally, interoperability between illustrative visualization software is limited due to diverse processing and rendering architectures employed in different studies. In this investigation, a framework for illustrative visualization is proposed, and implemented in MarmotViz, a ParaView plug-in, enabling its use on a variety of computing platforms with various data file formats and mesh geometries. Region-of-interest identification and feature-tracking algorithms incorporated into this tool are described. Implementations of multiple illustrative effect algorithms are also presented to demonstrate the use and flexibility of this framework. By providing an integrated framework for illustrative visualization of CFD data, MarmotViz can serve as a valuable asset for the interpretation of simulations of ever-growing scale. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Rattner, Alexander S.; Garimella, Srinivas] Georgia Inst Technol, Sustainable Thermal Syst Lab, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. [Guillen, Donna Post] Idaho Natl Lab, Adv Proc & Decis Syst Dept, Idaho Falls, ID 83401 USA. [Joshi, Alark] Univ San Francisco, Dept Comp Sci, Coll Arts & Sci, San Francisco, CA 94117 USA. RP Garimella, S (reprint author), Georgia Inst Technol, Sustainable Thermal Syst Lab, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. EM sgarimella@gatech.edu RI Guillen, Donna/B-9681-2017; OI Guillen, Donna/0000-0002-7718-4608; Garimella, Srinivas/0000-0002-5697-4096; Rattner, Alexander/0000-0002-3985-7285 FU Krell Institute; U.S. Department of Energy Idaho Operations Office FX The funding sources: Krell Institute and U.S. Department of Energy Idaho Operations Office did not participate in the design and execution of this study or in the preparation of this manuscript. NR 33 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0965-9978 EI 1873-5339 J9 ADV ENG SOFTW JI Adv. Eng. Softw. PD JUL PY 2016 VL 97 BP 72 EP 84 DI 10.1016/j.advengsoft.2016.02.004 PG 13 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering; Engineering, Multidisciplinary SC Computer Science; Engineering GA DN1DF UT WOS:000376805800006 ER PT J AU Ukwatta, TN Stump, DR Linnemann, JT MacGibbon, JH Marinelli, SS Yapici, T Tollefson, K AF Ukwatta, T. N. Stump, D. R. Linnemann, J. T. MacGibbon, J. H. Marinelli, S. S. Yapici, T. Tollefson, K. TI Primordial Black Holes: Observational characteristics of the final evaporation SO ASTROPARTICLE PHYSICS LA English DT Article DE Primordial Black Holes; HAWC; Very high energy bursts; Gamma-ray bursts ID PARTICLE EMISSION RATES; GAMMA-RAY BURSTS; MASSLESS PARTICLES; NONROTATING HOLE; RATE-DENSITY; COSMIC-RAYS; POLARIZATION; EXPLOSIONS; VACUUM AB Many early universe theories predict the creation of Primordial Black Holes (PBHs). PBHs could have masses ranging from the Planck mass to 10(5) solar masses or higher depending on the size of the universe at formation. A Black Hole (BH) has a Hawking temperature which is inversely proportional to its mass. Hence a sufficiently small BH will quasi-thermally radiate particles at an ever-increasing rate as emission lowers its mass and raises its temperature. The final moments of this evaporation phase should be explosive and its description is dependent on the particle physics model. In this work we investigate the final few seconds of BH evaporation, using the Standard Model and incorporating the most recent Large Hadron Collider (LHC) results, and provide a new parameterization for the instantaneous emission spectrum. We calculate for the first time energy-dependent PBH burst light curves in the GeV/TeV energy range. Moreover, we explore PBH burst search methods and potential observational PBH burst signatures. We have found a unique signature in the PBH burst light curves that may be detectable by GeV/TeV gamma-ray observatories such as the High Altitude Water Cerenkov (HAWC) observatory. The implications of beyond the Standard Model theories on the PBH burst observational characteristics are also discussed, including potential sensitivity of the instantaneous photon detection rate to a squark threshold in the 5-10 TeV range. Published by Elsevier B.V. C1 [Ukwatta, T. N.] Los Alamos Natl Lab, Space & Remote Sensing ISR 2, POB 1663, Los Alamos, NM 87545 USA. [Stump, D. R.; Linnemann, J. T.; Marinelli, S. S.; Yapici, T.; Tollefson, K.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [MacGibbon, J. H.] Univ N Florida, Dept Phys, Jacksonville, FL 32224 USA. RP Ukwatta, TN (reprint author), Los Alamos Natl Lab, Space & Remote Sensing ISR 2, POB 1663, Los Alamos, NM 87545 USA. EM tilan.ukwatta@gmail.com FU National Science Foundation (MSU) [PHY-1410972]; Department of Energy (LANL); Laboratory Directed Research and Development (LDRD) program at LANL FX This work was supported by grants from the National Science Foundation (MSU), grant no. PHY-1410972 and Department of Energy (LANL). T.N.U. acknowledges the partial support of this work by the Laboratory Directed Research and Development (LDRD) program at LANL. We would also like to thank Wade Fisher of MSU for useful conversations on the likelihood fits, Jing-Ya Zhu of MSU for discussions on current models of supersymmetry and Sekhar Chivukula of MSU for useful conversations on Higgs field degrees of freedom and Extra Dimension models. We also thank the anonymous referee for comments that significantly improved the paper. NR 58 TC 3 Z9 3 U1 3 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-6505 EI 1873-2852 J9 ASTROPART PHYS JI Astropart Phys. PD JUL PY 2016 VL 80 BP 90 EP 114 DI 10.1016/j.astropartphys.2016.03.007 PG 25 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DN1FN UT WOS:000376811800006 ER PT J AU Dunn, A Dingreville, R Martinez, E Capolungo, L AF Dunn, Aaron Dingreville, Remi Martinez, Enrique Capolungo, Laurent TI Synchronous parallel spatially resolved stochastic cluster dynamics SO COMPUTATIONAL MATERIALS SCIENCE LA English DT Article DE Cluster dynamics; kinetic Monte Carlo; Parallel ID KINETIC MONTE-CARLO; RADIATION-DAMAGE; STRUCTURAL-MATERIALS; CHEMICAL-REACTIONS; FUSION-REACTORS; ALPHA-FE; BCC-FE; EVOLUTION; IRRADIATION; ALLOYS AB In this study, a spatially resolved stochastic cluster dynamics (SRSCD) model for radiation damage accumulation in metals is implemented using a synchronous parallel kinetic Monte Carlo algorithm. The parallel algorithm is shown to significantly increase the size of representative volumes achievable in SRSCD simulations of radiation damage accumulation. Weak scaling performance of the method is tested in two cases: (1) an idealized case of Frenkel pair diffusion and annihilation, and (2) a characteristic example problem including defect cluster formation and growth in alpha-Fe. For the latter case, weak scaling is tested using both Frenkel pair and displacement cascade damage. To improve scaling of simulations with cascade damage, an explicit cascade implantation scheme is developed for cases in which fast-moving defects are created in displacement cascades. For the first time, simulation of radiation damage accumulation in nanopolycrystals can be achieved with a three dimensional rendition of the microstructure, allowing demonstration of the effect of grain size on defect accumulation in Frenkel pair-irradiated alpha-Fe. (C) 2016 Elsevier B.V. All rights reserved. C1 [Dunn, Aaron; Dingreville, Remi] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Dunn, Aaron; Capolungo, Laurent] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. [Martinez, Enrique] Los Alamos Natl Lab, Mat Sci & Technol Div, MST 8, Los Alamos, NM 87545 USA. RP Dunn, A (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM adunn32@gatech.edu OI Martinez Saez, Enrique/0000-0002-2690-2622; Dingreville, Remi/0000-0003-1613-695X FU Laboratory Directed Research and Development program at Sandia National Laboratories; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Sandia National Laboratories/Georgia Tech Excellence in Engineering Research Program FX Supported by the Laboratory Directed Research and Development program at Sandia National Laboratories, 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.; This work was also funded by the Sandia National Laboratories/Georgia Tech Excellence in Engineering Research Program. NR 49 TC 0 Z9 0 U1 5 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-0256 EI 1879-0801 J9 COMP MATER SCI JI Comput. Mater. Sci. PD JUL PY 2016 VL 120 BP 43 EP 52 DI 10.1016/j.commatsci.2016.04.013 PG 10 WC Materials Science, Multidisciplinary SC Materials Science GA DM6MO UT WOS:000376467100006 ER PT J AU Zhou, SH Liu, C Yao, YX Du, Y Zhang, LJ Wang, CZ Ho, KM Kramer, MJ AF Zhou, S. H. Liu, C. Yao, Y. X. Du, Y. Zhang, L. J. Wang, C. -Z. Ho, K. -M. Kramer, M. J. TI Magnetic BiMn-alpha phase synthesis prediction: First-principles calculation, thermodynamic modeling and nonequilibrium chemical partitioning SO COMPUTATIONAL MATERIALS SCIENCE LA English DT Article DE First-principles calculation; Hubbard U correction; Chemical partitioning; Hard magnetic MnBi; Composition far from equilibrium ID GENERALIZED GRADIENT APPROXIMATION; MNBI INTERMETALLIC COMPOUND; FULL-POTENTIAL CALCULATIONS; QUASI-RANDOM STRUCTURES; LOW-TEMPERATURE PHASE; ELECTRONIC-STRUCTURE; FIELD; SYSTEM; MANGANESE; DIAGRAM AB BiMn-alpha is promising permanent magnet. Due to its peritectic formation feature, there is a synthetic challenge to produce single BiMn-alpha phase. The objective of this study is to assess driving force for crystalline phase pathways under far-from-equilibrium conditions. First-principles calculations with Hubbard U correction are performed to provide a robust description of the thermodynamic behavior. The energetics associated with various degrees of the chemical partitioning are quantified to predict temperature, magnetic field, and time dependence of the phase selection. By assessing the phase transformation under the influence of the chemical partitioning, temperatures, and cooling rate from our calculations, we suggest that it is possible to synthesize the magnetic BiMn-alpha compound in a congruent manner by rapid solidification. The external magnetic field enhances the stability of the BiMn-alpha phase. The compositions of the initial compounds from these highly driven liquids can be far from equilibrium. (C) 2016 Elsevier B.V. All rights reserved. C1 [Zhou, S. H.; Yao, Y. X.; Wang, C. -Z.; Ho, K. -M.; Kramer, M. J.] US DOE, Div Mat Sci & Engn, Ames Lab, Washington, DC 20585 USA. [Liu, C.; Kramer, M. J.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Liu, C.; Yao, Y. X.; Wang, C. -Z.; Ho, K. -M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Du, Y.; Zhang, L. J.] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China. RP Zhou, SH (reprint author), US DOE, Div Mat Sci & Engn, Ames Lab, Washington, DC 20585 USA. FU US Department of Energy (DOE) Advanced Research Projects Agency-Energy (ARPA-E) [11/CJ000/09/03]; US DOE [DE-AC02-07CH11358] FX The magnetic alloy development was supported by the US Department of Energy (DOE) Advanced Research Projects Agency-Energy (ARPA-E) under Contract No. 11/CJ000/09/03. Computational methods development was supported by the US Department of Energy, Basic Energy Sciences, Division of Materials Science and Engineering. Ames Laboratory is operated for the US DOE by Iowa State University under contract #DE-AC02-07CH11358. NR 68 TC 0 Z9 0 U1 10 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-0256 EI 1879-0801 J9 COMP MATER SCI JI Comput. Mater. Sci. PD JUL PY 2016 VL 120 BP 117 EP 126 DI 10.1016/j.commatsci.2016.04.016 PG 10 WC Materials Science, Multidisciplinary SC Materials Science GA DM6MO UT WOS:000376467100015 ER PT J AU Kshirsagar, S Mandadapu, KK Papadopoulos, P AF Kshirsagar, Shrikant Mandadapu, Kranthi K. Papadopoulos, Panayiotis TI Classical molecular dynamics simulations of crystal lattices with truncated Taylor series-based interatomic potentials SO COMPUTATIONAL MATERIALS SCIENCE LA English DT Article DE Molecular dynamics; Taylor series; Anharmonicity; Lennard-Jones; Specific heat; Thermal conductivity AB This article discusses a general method for constructing interatomic potentials based on truncated Taylor series expansion. Specifically, it addresses the scope of application of the method, and demonstrates its practical importance in capturing anharmonicity for a Lennard-Jones solid. In particular, the third-order terms in the truncated potential are shown to accurately approximate the thermal conductivity of the standard interaction Lennard-Jones potential. The paper also describes an efficient algorithm for locating the equilibrium lattice site of an atom in a three-dimensional crystal lattice displaced from its equilibrium position. Published by Elsevier B.V. C1 [Kshirsagar, Shrikant; Papadopoulos, Panayiotis] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Mandadapu, Kranthi K.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Mandadapu, Kranthi K.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA USA. RP Mandadapu, KK (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. FU National Science Foundation [ACI-1053575] FX The authors would like to thank Professor Christos Papadimitrou of the Department of Electrical Engineering and Computer Sciences at the University of California, Berkeley for his help with the algorithm for computing equilibrium positions in a crystal lattice. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation Grant No. ACI-1053575 [22]. NR 23 TC 0 Z9 0 U1 7 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-0256 EI 1879-0801 J9 COMP MATER SCI JI Comput. Mater. Sci. PD JUL PY 2016 VL 120 BP 127 EP 134 DI 10.1016/j.commatsci.2016.03.032 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA DM6MO UT WOS:000376467100016 ER PT J AU Lindsay, P Parks, ML Prakash, A AF Lindsay, P. Parks, M. L. Prakash, A. TI Enabling fast, stable and accurate peridynamic computations using multi-time-step integration SO COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING LA English DT Article DE Peridynamics; Multi-Time-Step; Nonlocal; Fracture ID EXPLICIT FINITE-ELEMENTS; NONLINEAR STRUCTURAL DYNAMICS; COUPLED MECHANICAL SYSTEMS; TRANSIENT ANALYSIS; CRACK-PROPAGATION; MOLECULAR-DYNAMICS; SOLID MECHANICS; STABILITY; ALGORITHMS; MODELS AB Peridynamics is a nonlocal extension of classical continuum mechanics that is well-suited for solving problems with discontinuities such as cracks. This paper extends the peridynamic formulation to decompose a problem domain into a number of smaller overlapping subdomains and to enable the use of different time steps in different subdomains. This approach allows regions of interest to be isolated and solved at a small time step for increased accuracy while the rest of the problem domain can be solved at a larger time step for greater computational efficiency. Performance of the proposed method in terms of stability, accuracy, and computational cost is examined and several numerical examples are presented to corroborate the findings. (C) 2016 Elsevier B.V. All rights reserved. C1 [Lindsay, P.; Prakash, A.] Lyles Sch Civil Engn, Delon & Elizabeth Hampton Hall Civil Engn, W Lafayette, IN 47907 USA. [Parks, M. L.] Sandia Natl Labs, POB 5800,MS 1320, Albuquerque, NM 87185 USA. RP Prakash, A (reprint author), Lyles Sch Civil Engn, Delon & Elizabeth Hampton Hall Civil Engn, W Lafayette, IN 47907 USA. EM plindsay@purdue.edu; mlparks@sandia.gov; aprakas@purdue.edu RI Prakash, Arun/G-5327-2012 OI Prakash, Arun/0000-0001-7579-0973 FU US Department of Energy Office of Science, Office of Advanced Scientific Computing Research, Computer Science program [DE-FC02-12ER26104] FX This material is based upon work supported by the US Department of Energy Office of Science, Office of Advanced Scientific Computing Research, Computer Science program under contract DE-FC02-12ER26104. The authors also thank the anonymous reviewers for their insightful comments that have helped improve the manuscript. NR 61 TC 1 Z9 1 U1 2 U2 10 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0045-7825 EI 1879-2138 J9 COMPUT METHOD APPL M JI Comput. Meth. Appl. Mech. Eng. PD JUL 1 PY 2016 VL 306 BP 382 EP 405 DI 10.1016/j.cma.2016.03.049 PG 24 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications; Mechanics SC Engineering; Mathematics; Mechanics GA DM6TK UT WOS:000376485100017 ER PT J AU Poineau, F Silva, CM Yeamans, CB Cerefice, GS Sattelberger, AP Czerwinski, KR AF Poineau, Frederic Silva, Chinthaka M. Yeamans, Charles B. Cerefice, Gary S. Sattelberger, Alfred P. Czerwinski, Kenneth R. TI Structural study of the ammonium octafluoroneptunate, [NH4](4)NpF8 SO INORGANICA CHIMICA ACTA LA English DT Article DE Neptunium; Fluoride; EXAFS ID ABSORPTION FINE-STRUCTURE; CRYSTAL-STRUCTURE; FLUORIDE; TETRAFLUORIDE; (NH4)4UF8; SYSTEM; ROUTE AB The [NH4](4)NpF8 salt was prepared from the solid-state reaction of NpO2 with NH4HF2 and characterized by powder X-ray diffraction and X-ray absorption fine structure spectroscopy. The diffraction results confirm the compound to be isostructural to [NH4](4)UF8 with the following lattice parameter (a = 13.054(4)angstrom, b = 6.681(2) angstrom, c = 13.676(5) angstrom, beta = 121.14 angstrom). For the first time, a neptunium fluoride complex has been characterized by XAFS spectroscopy. The energy position of the white line and inflection of the XANES spectra of [NH4](4)NpF8 are consistent with the presence of Np(IV). Adjustment of the EXAFS spectra indicates that the coordination number (7.4 +/- 1.5) and the average Np-F distance (2.26(1) angstrom) are consistent with the presence of the NpF8 dodecahedron. The average Np-F distance is similar to 0.02 angstrom shorter than the U-F distance in [NH4](4)UF8 and is a result of the actinide contraction. (c) 2016 Elsevier B.V. All rights reserved. C1 [Poineau, Frederic; Sattelberger, Alfred P.; Czerwinski, Kenneth R.] Univ Nevada, Dept Chem, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA. [Silva, Chinthaka M.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Yeamans, Charles B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Cerefice, Gary S.] Univ Nevada, Dept Hlth Phys, Las Vegas, NV 89154 USA. [Sattelberger, Alfred P.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Poineau, F (reprint author), Univ Nevada, Dept Chem, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA. EM poineauf@unlv.nevada.edu FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Department of Chemistry and Biochemistry at UNLV FX 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.; FP acknowledges the Department of Chemistry and Biochemistry at UNLV for supporting his research through a startup package. NR 31 TC 0 Z9 0 U1 4 U2 7 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0020-1693 EI 1873-3255 J9 INORG CHIM ACTA JI Inorg. Chim. Acta PD JUL 1 PY 2016 VL 448 BP 93 EP 96 DI 10.1016/j.ica.2016.04.025 PG 4 WC Chemistry, Inorganic & Nuclear SC Chemistry GA DM7FB UT WOS:000376521100013 ER PT J AU Brechignac, F Oughton, D Mays, C Barnthouse, L Beasley, JC Bonisoli-Alquati, A Bradshaw, C Brown, J Dray, S Geras'kin, S Glenn, T Higley, K Ishida, K Kapustka, L Kautsky, U Kuhne, W Lynch, M Mappes, T Mihok, S Moller, AP Mothersill, C Mousseau, TA Otaki, JM Pryakhin, E Rhodes, OE Salbu, B Strand, P Tsukada, H AF Brechignac, Francois Oughton, Deborah Mays, Claire Barnthouse, Lawrence Beasley, James C. Bonisoli-Alquati, Andrea Bradshaw, Clare Brown, Justin Dray, Stephane Geras'kin, Stanislav Glenn, Travis Higley, Kathy Ishida, Ken Kapustka, Lawrence Kautsky, Ulrik Kuhne, Wendy Lynch, Michael Mappes, Tapio Mihok, Steve Moller, Anders P. Mothersill, Carmel Mousseau, Timothy A. Otaki, Joji M. Pryakhin, Evgeny Rhodes, Olin E., Jr. Salbu, Brit Strand, Per Tsukada, Hirofumi TI Addressing ecological effects of radiation on populations and ecosystems to improve protection of the environment against radiation: Agreed statements from a Consensus Symposium SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY LA English DT Review DE Radiation effects; Ecological risk assessment; Populations; Ecosystems; Environmental protection; Consensus development ID IONIZING-RADIATION; BIOLOGICAL IMPACTS; CHERNOBYL; FUKUSHIMA; COMMUNITIES; ABUNDANCE; EXPOSURE; DATABASE; FISH AB This paper reports the output of a consensus symposium organized by the International Union of Radioecology in November 2015. The symposium gathered an academically diverse group of 30 scientists to consider the still debated ecological impact of radiation on populations and ecosystems. Stimulated by the Chernobyl and Fukushima disasters' accidental contamination of the environment, there is increasing interest in developing environmental radiation protection frameworks. Scientific research conducted in a variety of laboratory and field settings has improved our knowledge of the effects of ionizing radiation on the environment. However, the results from such studies sometimes appear contradictory and there is disagreement about the implications for risk assessment. The Symposium discussions therefore focused on issues that might lead to different interpretations of the results, such as laboratory versus field approaches, organism versus population and ecosystemic inference strategies, dose estimation approaches and their significance under chronic exposure conditions. The participating scientists, from across the spectrum of disciplines and research areas, extending also beyond the traditional radioecology community, successfully developed a constructive spirit directed at understanding discrepancies. From the discussions, the group has derived seven consensus statements related to environmental protection against radiation, which are supplemented with some recommendations. Each of these statements is contextualized and discussed in view of contributing to the orientation and integration of future research, the results of which should yield better consensus on the ecological impact of radiation and consolidate suitable approaches for efficient radiological protection of the environment. (C) 2016 The Authors. Published by Elsevier Ltd. C1 [Brechignac, Francois] Ctr Cadarache, Inst Radioprotect & Nucl Safety IRSN, BP 3, F-13115 St Paul Les Durance, France. [Brechignac, Francois] Ctr Cadarache, IUR, BP 3, F-13115 St Paul Les Durance, France. [Oughton, Deborah; Salbu, Brit] Norwegian Univ Life Sci, Ctr Environm Radioact CERAD, POB 5003, N-1432 As, Norway. [Mays, Claire] Inst Symlog de France, 262 Rue St Jacques, F-75005 Paris, France. [Barnthouse, Lawrence] LWB Environm Serv Inc, 1620 New London Rd, Hamilton, OH 45013 USA. [Beasley, James C.] Univ Georgia, Savannah River Ecol Lab, PO Drawer E, Aiken, SC 29802 USA. [Beasley, James C.] Univ Georgia, Warnell Sch Forestry & Nat Resources, PO Drawer E, Aiken, SC 29802 USA. [Bonisoli-Alquati, Andrea] Louisiana State Univ, AgCtr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA. [Bradshaw, Clare] Stockholm Univ, Dept Ecol Environm & Plant Sci, S-10691 Stockholm, Sweden. [Brown, Justin] NRPA, Osteras, Norway. [Dray, Stephane] Univ Lyon, F-69000 Lyon, France. [Dray, Stephane] Univ Lyon 1, F-69622 Villeurbanne, France. [Dray, Stephane] CNRS, UMR5558, Lab Biomet & Biol Evolut, F-69622 Villeurbanne, France. [Geras'kin, Stanislav] Russian Inst Radiol & Agroecol, Obninsk, Russia. [Glenn, Travis] Univ Georgia, Dept Environm Hlth Sci, Athens, GA 30602 USA. [Higley, Kathy] Oregon State Univ, Sch Nucl Sci & Engn, Corvallis, OR 97331 USA. [Ishida, Ken] Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan. [Kapustka, Lawrence] LK Consultancy, POB 373, Turner Valley, AB T0L 2A0, Canada. [Kautsky, Ulrik] Swedish Nucl Fuel & Waste Management Co SKB, POB 250, SE-10124 Stockholm, Sweden. [Kuhne, Wendy] Savannah River Natl Lab, Aiken, SC USA. [Lynch, Michael] Indiana Univ, Dept Biol, 1001 East Third St, Bloomington, IN 47405 USA. [Mappes, Tapio] Univ Jyvaskyla, Dept Biol & Environm Sci, POB 35, Jyvaskyla 40014, Finland. [Mihok, Steve] 388 Church St, Russell, ON K4R 1A8, Canada. [Moller, Anders P.] Univ Paris Saclay, CNRS, Univ Paris Sud, Ecol Systemat Evolut,AgroParisTech, F-91405 Orsay, France. [Mothersill, Carmel] McMaster Univ, Dept Med Phys & Appl Radiat Sci, Hamilton, ON, Canada. [Mousseau, Timothy A.] Univ S Carolina, Dept Biol Sci, Columbia, SC 29208 USA. [Mousseau, Timothy A.] Univ S Carolina, Sch Earth Ocean & Environm, Columbia, SC 29208 USA. [Otaki, Joji M.] Univ Ryukyus, BCPH Unit Mol Physiol, Dept Chem Biol & Marine Sci, Fac Sci, Okinawa 9030213, Japan. [Pryakhin, Evgeny] Urals Res Ctr Radiat Med, Vorovsky Str 68a, Chelyabinsk 454076, Russia. [Rhodes, Olin E., Jr.] SREL, Aiken, SC 29802 USA. [Tsukada, Hirofumi] Fukushima Univ, Inst Environm Radioact, 1 Kanayagawa, Fukushima, Fukushima 9601296, Japan. [Strand, Per] Norwegian Univ Life Sci NMBU, Univ St 3, N-1430 As, Norway. RP Brechignac, F (reprint author), Ctr Cadarache, Inst Radioprotect & Nucl Safety IRSN, BP 3, F-13115 St Paul Les Durance, France.; Brechignac, F (reprint author), Ctr Cadarache, IUR, BP 3, F-13115 St Paul Les Durance, France. EM francois.brechignac@irsn.fr; deborah.oughton@nmbu.no; claire.mays@post.harvard.edu; barnthouse@lwb-env.com; beasley@srel.uga.edu; andreabonisoli@gmail.com; clare.bradshaw@su.se; Justin.brown@nrpa.no; stephane.dray@univ-lyon1.fr; stgeraskin@gmail.com; travisg@uga.edu; kathryn.higley@oregonstate.edu; ishiken@es.a.u-tokyo.ac.jp; kapustka@xplornet.com; ulrikkau+iurj@gmail.com; wendy.kuhne@srnl.doe.gov; milynch@indiana.edu; tapio.mappes@jyu.fi; smihok@bell.net; anders.Moller@u-psud.fr; mothers@mcmaster.ca; mousseau@sc.edu; otaki@sci.u-ryukyu.ac.jp; pryakhin@yandex.ru; rhodes@srel.uga.edu; brit.salbu@nmbu.no; per.strand@nrpa.no; hirot@ipc.fukushima-u.ac.jp RI Moller, Anders/O-6665-2016; Dray, Stephane/B-4107-2010; Mappes, Tapio/B-9780-2013; OI Moller, Anders/0000-0003-3739-4675; Dray, Stephane/0000-0003-0153-1105; Mappes, Tapio/0000-0002-5936-7355; Mihok, Steve/0000-0003-2328-8986 FU Research Council of Norway through its Centre's of Excellence funding scheme [223268/F50] FX The authors wish to thank Dr Armelle Guilloux (Ellipse&Co) for the warm ambiance and excellent logistics organization of the 2015 Miami International Consensus Symposium. This work was (partly) supported by the Research Council of Norway through its Centre's of Excellence funding scheme, project number 223268/F50. NR 43 TC 3 Z9 3 U1 12 U2 28 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0265-931X EI 1879-1700 J9 J ENVIRON RADIOACTIV JI J. Environ. Radioact. PD JUL PY 2016 VL 158 BP 21 EP 29 DI 10.1016/j.jenvrad.2016.03.021 PG 9 WC Environmental Sciences SC Environmental Sciences & Ecology GA DM9PV UT WOS:000376699100003 PM 27058410 ER PT J AU Li, J Jacobs, IE Friedrich, S Stroeve, P Moule, AJ AF Li, Jun Jacobs, Ian E. Friedrich, Stephan Stroeve, Pieter Moule, Adam J. TI Solution aging and degradation of a transparent conducting polymer dispersion SO ORGANIC ELECTRONICS LA English DT Article DE Organic electronics; Solution processing; Stability; Degradation; Aging; Conductivity ID ORGANIC PHOTOVOLTAIC DEVICES; LIGHT-EMITTING-DIODES; NON-NEWTONIAN FLUIDS; SOLAR-CELLS; PEDOTPSS FILMS; WORK-FUNCTION; STABILITY; PERFORMANCE; MECHANISMS; MORPHOLOGY AB As organic electronics improve, there is increased research interest on the longevity and stability of both the device and individual material components. Most of these studies focus on post deposition degradation and aging of the film. In this article, we examine the stability of polyelectrolyte dispersions before film coating. We observe substantial differences in the solution properties of the transparent conducting polymer, S-P3MEET, when comparing fresh versus aged dispersions and relate these solution differences to film properties. The aged dispersion contains large agglomerates and exhibits a typical shear-thinning rheological behavior, which results in non-uniformity of the spin-coated films. Near edge X-ray absorption fine structure measurements were used to differentiate the changes in bonding and oxidation states and show that aged S-P3MEET is more highly self-doped than fresh S-P3MEET. We also show that addition of acid, salt or heat to fresh S-P3MEET can accelerate the degradation/aging process but are subjected to different mechanisms. Conductivity measurements of S-P3MEET films illustrate that there is a tradeoff between increased work function and decreased conductivity upon perfluorinated ionomer (PFI) loading. The formation of nanostructure in solution is also correlated to film morphology variations obtained from atomic force microscopy. We expect that dispersion aging is a process that commonly exists in most solution-dispersed polyelectrolyte materials and that the methodologies presented in this paper might be beneficial to future degradation/stability studies. (C) 2016 Elsevier B.V. All rights reserved. C1 [Li, Jun; Jacobs, Ian E.; Stroeve, Pieter; Moule, Adam J.] Univ Calif Davis, Dept Chem Engn, Davis, CA 95616 USA. [Jacobs, Ian E.] Univ Calif Davis, Dept Mat Sci & Engn, Davis, CA 95616 USA. [Friedrich, Stephan] Lawrence Livermore Natl Lab, Adv Detector Grp, Livermore, CA 94550 USA. RP Moule, AJ (reprint author), Univ Calif Davis, Dept Chem Engn, Davis, CA 95616 USA. EM amoule@ucdavis.edu OI Moule, Adam/0000-0003-1354-3517 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0010419]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This research project was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Award DE-SC0010419. The NEXAFS work was performed in collaboration under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. We would like to thank Elke Arrenholz and Alpha N ' Diaye (ALS, LBNL) for user support and training, Prof. Nitin Nitin (UC Davis) for help of the particle size and zeta potential measurements, and Dr. Charles F. Shoemaker (UC Davis) for helping with the rheological measurements. NR 59 TC 0 Z9 0 U1 7 U2 21 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1566-1199 EI 1878-5530 J9 ORG ELECTRON JI Org. Electron. PD JUL PY 2016 VL 34 BP 172 EP 178 DI 10.1016/j.orgel.2016.04.019 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA DM6JE UT WOS:000376457000026 ER PT J AU McNamara, BK O'Hara, MJ Casella, AM Carter, JC Addleman, RS MacFarlan, PJ AF McNamara, Bruce K. O'Hara, Matthew J. Casella, Andrew M. Carter, Jennifer C. Addleman, R. Shane MacFarlan, Paul J. TI Uniform deposition of uranium hexafluoride (UF6): Standardized mass deposits and controlled isotopic ratios using a thermal fluorination method SO TALANTA LA English DT Article DE Fluorination; UF6; UO2F2; UO2; Nuclear safeguards; Nuclear forensics ID UO2F2; NF3 AB We report a convenient method for the generation of volatile uranium hexafluoride (UF6) from solid uranium oxides and other U compounds, followed by uniform deposition of low levels of UF6 onto sampling coupons. Under laminar flow conditions, UF6 is shown to interact with surfaces within a fixed reactor geometry to a highly predictable degree. We demonstrate the preparation of U deposits that range between approximately 0.01 and 500 ng cm(-2). The data suggest the method can be extended to creating depositions at the sub-picogram cm(-2) level. The isotopic composition of the deposits can be customized by selection of the U source materials and we demonstrate a layering technique whereby two U solids, each with a different isotopic composition, are employed to form successive layers of UF6 on a surface. The result is an ultra-thin deposit that bears an isotopic signature that is a composite of the two U sources. The reported deposition method has direct application to the development of unique analytical standards for nuclear safeguards and forensics. Further, the method allows access to very low atomic or molecular coverages of surfaces. (c) 2016 Elsevier B.V. All rights reserved. C1 [McNamara, Bruce K.; O'Hara, Matthew J.; Casella, Andrew M.; Carter, Jennifer C.; Addleman, R. Shane; MacFarlan, Paul J.] Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. RP McNamara, BK (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. EM Bruce.McNamara@pnnl.gov FU Office of Nonproliferation and International Security (NIS); Office of Defense Nuclear Nonproliferation Research and Development (DNN R&D), National Nuclear Security Administration (NNSA) FX The authors gratefully acknowledge the support of the Office of Nonproliferation and International Security (NIS), and the Office of Defense Nuclear Nonproliferation Research and Development (DNN R&D), National Nuclear Security Administration (NNSA). We would also like to thank the Pacific Northwest National Laboratory (PNNL) Laboratory-Directed Research & Development (LDRD) program. PNNL is operated for the U.S. Department of Energy by Battelle. The content is solely the responsibility of the authors and does not necessarily represent the official views of the DOE, PNNL or Battelle. NR 19 TC 0 Z9 0 U1 6 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-9140 EI 1873-3573 J9 TALANTA JI Talanta PD JUL 1 PY 2016 VL 154 BP 219 EP 227 DI 10.1016/j.talanta.2016.03.054 PG 9 WC Chemistry, Analytical SC Chemistry GA DM9OU UT WOS:000376696400028 PM 27154668 ER PT J AU Koop, L Nakashima, D Heck, PR Kita, NT Tenner, TJ Krot, AN Nagashima, K Park, C Davis, AM AF Koop, Levke Nakashima, Daisuke Heck, Philipp R. Kita, Noriko T. Tenner, Travis J. Krot, Alexander N. Nagashima, Kazuhide Park, Changkun Davis, Andrew M. TI New constraints on the relationship between Al-26 and oxygen, calcium, and titanium isotopic variation in the early Solar System from a multielement isotopic study of spinel-hibonite inclusions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article DE Spinel-hibonite inclusions (SHIBs); CAI; Meteorites; Solar nebula; Oxygen isotopes; Internal isochrons; Aluminum-26; Magnesium isotopes; Titanium isotopes; Calcium isotopes ID MURCHISON CARBONACEOUS CHONDRITE; ALUMINUM-RICH INCLUSIONS; REFRACTORY INCLUSIONS; PROTOPLANETARY DISK; CONTEMPORANEOUS FORMATION; ELEMENT ABUNDANCES; MASS-SPECTROMETRY; ALLENDE; METEORITES; CHONDRULES AB We report oxygen, calcium, titanium and Al-26-Mg-26 isotope systematics for spinel-hibonite inclusions (SHIBs), a class of calcium-aluminum-rich inclusions (CAI) common in CM chondrites. In contrast to previous studies, our analyses of 33 SHIBs and four SHIB-related objects obtained with high spatial resolution demonstrate that these CAIs have a uniform Delta O-17 value of approximately -23 parts per thousand, similar to many other mineralogically pristine CAIs from unmetamorphosed chondrites (e.g., CR, CV, and Acfer 094). Five SHIBs studied for calcium and titanium isotopes have no resolvable anomalies beyond 3 sigma uncertainties. This suggests that nucleosynthetic anomalies in the refractory elements had been significantly diluted in the environment where SHIBs with uniform Delta O-17 formed. We established internal Al-26-Mg-26 isochrons for eight SHIBs and found that seven of these formed with uniformly high levels of Al-26 (a multi-CAI mineral isochron yields an initial Al-26/Al-27 ratio of similar to 4.8 x 10(-5)), but one SHIB has a smaller initial Al-26/Al-27 of similar to 2.5 x 10(-5), indicating variation in Al-26/Al-27 ratios when SHIBs formed. The uniform calcium, titanium and oxygen isotopic characteristics found in SHIBs with both high and low initial Al-26/Al-27 ratios allow for two interpretations. (1) If subcanonical initial Al-26/Al-27 ratios in SHIBs are due to early formation, as suggested by Liu et al. (2012), our data would indicate that the CAI formation region had achieved a high degree of isotopic homogeneity in oxygen and refractory elements before a homogeneous distribution of Al-26 was achieved. (2) Alternatively, if subcanonical ratios were the result of Al-26-Mg-26 system resetting, the clustering of SHIBs at a Delta O-17 value of similar to-23 parts per thousand would imply that a O-16-rich gaseous reservoir existed in the nebula until at least similar to 0.7 Ma after the formation of the majority of CAIs. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Koop, Levke; Heck, Philipp R.; Davis, Andrew M.] Univ Chicago, Dept Geophys Sci, 5734 S Ellis Ave, Chicago, IL 60637 USA. [Koop, Levke; Heck, Philipp R.; Davis, Andrew M.] Univ Chicago, Chicago Ctr Cosmochemi, Chicago, IL 60637 USA. [Koop, Levke; Heck, Philipp R.; Davis, Andrew M.] Field Museum Nat Hist, Robert A Pritzker Ctr Meteorit & Polar Studies, Chicago, IL 60605 USA. [Nakashima, Daisuke; Kita, Noriko T.; Tenner, Travis J.] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA. [Nakashima, Daisuke] Tohoku Univ, Fac Sci, Div Earth & Planetary Mat Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan. [Krot, Alexander N.; Nagashima, Kazuhide; Park, Changkun] Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Hawaii Inst Geophys & Planetol, Honolulu, HI USA. [Park, Changkun] Korea Polar Res Inst, Inchon 406840, South Korea. [Davis, Andrew M.] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA. [Tenner, Travis J.] Los Alamos Natl Lab, Div Chem, Nucl & Radiochem, MSJ514, Los Alamos, NM 87545 USA. RP Koop, L (reprint author), Univ Chicago, Dept Geophys Sci, 5734 S Ellis Ave, Chicago, IL 60637 USA. EM koeoep@uchicago.edu FU NASA [NNX09AG39G, NNX15AF78G, NNX11AG62G, NNX14AG29G, NNX13AD15G, NNX15AH38G]; NSF [EAR03-19230, EAR10-53466, EAR13-55590]; Tawani Foundation; NASA Earth and Space Science Fellowship FX We thank Frederic Moynier for editorial handling and Justin Simon and two anonymous reviewers for careful reviews that greatly improved the manuscript. We are also thankful for assistance from Ian Steele with EPMA analyses. L. Koop and A.M. Davis acknowledge funding from the NASA Cosmochemistry Program (Grant NNX09AG39G, to A.M. Davis) and NASA Laboratory Analysis of Returned Samples Program (Grant NNX15AF78G, to A.M. Davis). L. Koop was also supported through a NASA Earth and Space Science Fellowship. N.T. Kita is supported by the NASA Cosmochemistry Program (Grants NNX11AG62G, NNX14AG29G); D. Nakashima and T.J. Tenner were supported by the NASA Laboratory Analysis of Returned Samples Program (Grant NNX13AD15G, to PI N.T. Kita). A.N. Krot was supported by NASA Emerging Worlds Program (Grant NNX15AH38G, to A. N. Krot). WiscSIMS is partly supported by NSF (EAR03-19230, EAR10-53466, EAR13-55590). P.R. Heck acknowledges funding from the Tawani Foundation. NR 58 TC 7 Z9 7 U1 5 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 EI 1872-9533 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUL 1 PY 2016 VL 184 BP 151 EP 172 DI 10.1016/j.gca.2016.04.018 PG 22 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA DM2HX UT WOS:000376168800009 ER PT J AU Uckun, C Botterud, A Birge, JR AF Uckun, Canan Botterud, Audun Birge, John R. TI An Improved Stochastic Unit Commitment Formulation to Accommodate Wind Uncertainty SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Electricity markets; stochastic programming; wind power ID PROBABILISTIC FORECASTS; POWER-GENERATION; SYSTEM AB The United States targets to supply 20% of its electricity generation using wind energy by 2030. The expansion of renewable resources, especially weather-based resources such as wind, creates more uncertainty and variability in the operation of the power grid. New methods and approaches in electricity market operations are needed to efficiently manage the continuing increase in variability and uncertainty caused by expanding intermittent wind. This paper proposes an improved stochastic programming approach for incorporating wind uncertainty into energy markets. The proposed formulation improves the two-stage stochastic unit commitment problem by introducing a dynamic decision making approach similar to a multi-stage formulation in the presence of wind power scenarios which are not well represented by a scenario tree. The numerical results present up to 1%-2% decrease in operational costs compared to the two-stage stochastic unit commitment formulation. C1 [Uckun, Canan; Botterud, Audun] Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA. [Birge, John R.] Univ Chicago, Booth Sch Business, Chicago, IL 60637 USA. RP Uckun, C; Botterud, A (reprint author), Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA.; Birge, JR (reprint author), Univ Chicago, Booth Sch Business, Chicago, IL 60637 USA. EM cuckun@anl.gov; abotterud@anl.gov; jbirge@chicagobooth.edu FU University of Chicago; Department of Energy [DE-AC02-06CH11357]; University of Chicago Booth School of Business FX This work was supported by the University of Chicago and the Department of Energy under Department of Energy Contract No. DE-AC02-06CH11357 awarded to UChicago Argonne, LLC, operator of Argonne National Laboratory. The work of J. R. Birge was supported by the University of Chicago Booth School of Business. NR 22 TC 2 Z9 2 U1 4 U2 18 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 2507 EP 2517 DI 10.1109/TPWRS.2015.2461014 PG 11 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200001 ER PT J AU Castillo, A Lipka, P Watson, JP Oren, SS O'Neill, RP AF Castillo, Anya Lipka, Paula Watson, Jean-Paul Oren, Shmuel S. O'Neill, Richard P. TI A Successive Linear Programming Approach to Solving the IV-ACOPF SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Alternating current optimal power flow (ACOPF); optimal power flow (OPF); rectangular coordinates; successive linear programming (SLP) ID OPTIMAL POWER-FLOW; OPTIMIZATION AB Improved formulations of and solution techniques for the alternating current optimal power flow (ACOPF) problem are critical to improving current market practices in economic dispatch. We introduce the IV-ACOPF formulation that unlike canonical ACOPF formulations-which represent network balancing through nonlinear coupling-is based on a current injections approach that linearly couple the quadratic constraints at each bus; yet, the IV-ACOPF is mathematically equivalent to the canonical ACOPF formulation. We propose a successive linear programming (SLP) approach to solve the IV-ACOPF, which we refer to as the SLP IV-ACOPF algorithm. The SLP IV-ACOPF leverages commercial LP solvers and can be readily extended and integrated into more complex decision processes, e.g., unit commitment and transmission switching. We demonstrate with the standard MATPOWER test suite an acceptable quality of convergence to a best-known solution and linear scaling of computational time in proportion to network C1 [Castillo, Anya] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Castillo, Anya; O'Neill, Richard P.] FERC, Washington, DC 20426 USA. [Lipka, Paula; Oren, Shmuel S.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Watson, Jean-Paul] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Castillo, A (reprint author), Johns Hopkins Univ, Baltimore, MD 21218 USA.; O'Neill, RP (reprint author), FERC, Washington, DC 20426 USA.; Lipka, P; Oren, SS (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.; Watson, JP (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM anya.castillo@gmail.com; plipka@berkeley.edu; jwatson@sandia.gov; oren@ieor.berkeley.edu; richard.oneill@ferc.gov FU National Science Foundation Graduate Research Fellowship [DGE 1106400]; U.S. Department of Energy's Office of Advanced Scientific Computing Research; Lockheed Martin Corporation [DE-AC04-94-AL85000] FX This work was supported in part by the National Science Foundation Graduate Research Fellowship DGE 1106400 and in part by the U.S. Department of Energy's Office of Advanced Scientific Computing Research. 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-AC04-94-AL85000. NR 49 TC 4 Z9 4 U1 3 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 2752 EP 2763 DI 10.1109/TPWRS.2015.2487042 PG 12 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200023 ER PT J AU Dall'Anese, E Dhople, SV Giannakis, GB AF Dall'Anese, Emiliano Dhople, Sairaj V. Giannakis, Georgios B. TI Photovoltaic Inverter Controllers Seeking AC Optimal Power Flow Solutions SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Distributed optimization and control; distribution systems; optimal power flow; photovoltaic inverter control ID RESIDENTIAL DISTRIBUTION-SYSTEMS; SUBGRADIENT METHODS; OPTIMAL DISPATCH; CONVERGENCE; CONVEX; OPTIMIZATION AB This paper considers future distribution networks featuring inverter-interfaced photovoltaic (PV) systems, and addresses the synthesis of feedback controllers that seek real-and reactive-power inverter setpoints corresponding to AC optimal power flow (OPF) solutions. The objective is to bridge the temporal gap between long-term system optimization and real-time inverter control, and enable seamless PV-owner participation without compromising system efficiency and stability. The design of the controllers is grounded on a dual epsilon-subgradient method, while semidefinite programming relaxations are advocated to bypass the non-convexity of AC OPF formulations. Global convergence of inverter output powers is analytically established for diminishing stepsize rules for cases where: i) computational limits dictate asynchronous updates of the controller signals, and ii) inverter reference inputs may be updated at a faster rate than the power-output settling time. C1 [Dall'Anese, Emiliano] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Dhople, Sairaj V.; Giannakis, Georgios B.] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA. [Dhople, Sairaj V.; Giannakis, Georgios B.] Univ Minnesota, Digital Technol Ctr, Minneapolis, MN 55455 USA. RP Dall'Anese, E (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.; Dhople, SV; Giannakis, GB (reprint author), Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA.; Dhople, SV; Giannakis, GB (reprint author), Univ Minnesota, Digital Technol Ctr, Minneapolis, MN 55455 USA. EM emiliano.dallanese@nrel.gov; sdhople@umn.edu; georgios@umn.edu FU Laboratory Directed Research and Development Program at the National Renewable Energy Laboratory; Department of Energy Office of Electricity (OE) [28676]; National Science Foundation [CCF 1423316, CyberSEES 1442686, ECCS-1453921]; Institute of Renewable Energy and the Environment, University of Minnesota [RL-0010-13, TPWRS-01758-2014] FX The work of E. Dall'Anese was supported in part by the Laboratory Directed Research and Development Program at the National Renewable Energy Laboratory, and in part by the Department of Energy Office of Electricity (OE) agreement 28676. The work of S. V. Dhople and G. B. Giannakis was supported in part by the National Science Foundation through grants CCF 1423316, CyberSEES 1442686, and CAREER award ECCS-1453921 and in part by the Institute of Renewable Energy and the Environment, University of Minnesota under grant RL-0010-13. Paper no. TPWRS-01758-2014. NR 46 TC 0 Z9 0 U1 3 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 2809 EP 2823 DI 10.1109/TPWRS.2015.2454856 PG 15 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200028 ER PT J AU Garcia, M Catanach, T Wiel, SV Bent, R Lawrence, E AF Garcia, Manuel Catanach, Thomas Wiel, Scott Vander Bent, Russell Lawrence, Earl TI Line Outage Localization Using Phasor Measurement Data in Transient State SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Estimation; power system faults; transient response; uncertainty AB This paper introduces a statistical classifier that quickly locates line outages in a power system utilizing only time series phasor measurement data sampled during the system's transient response to the outage. The presented classifier is a linear multinomial regression model that is trained by solving a maximum likelihood optimization problem using synthetic data. The synthetic data is produced through dynamic simulations which are initialized by random samples of a forecast load/generation distribution. Real time computation of the proposed classifier is minimal and therefore the classifier is capable of locating a line outage before steady state is reached, allowing for quick corrective action in response to an outage. In addition, the output of the classifier fits into a statistical framework that is easily accessible. Specific line outages are identified as being difficult to localize and future improvements to the classifier are proposed. C1 [Garcia, Manuel; Wiel, Scott Vander; Bent, Russell; Lawrence, Earl] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. [Catanach, Thomas] CALTECH, Pasadena, CA 91125 USA. RP Garcia, M (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. OI Bent, Russell/0000-0002-7300-151X NR 17 TC 0 Z9 0 U1 1 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 3019 EP 3027 DI 10.1109/TPWRS.2015.2461461 PG 9 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200048 ER PT J AU Wei, W Wang, JH Mei, SW AF Wei, Wei Wang, Jianhui Mei, Shengwei TI Dispatchability Maximization for Co-Optimized Energy and Reserve Dispatch With Explicit Reliability Guarantee SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Affine policy; convex optimization; dispatchability; energy and reserve dispatch; uncertainty; wind generation ID CONSTRAINED UNIT COMMITMENT; WIND POWER INTEGRATION; ROBUST OPTIMIZATION; PROBABILITY-DISTRIBUTIONS; AFFINE POLICIES; GENERATION; TRANSMISSION; SYSTEMS; STORAGE; CAPACITY AB In this paper, we consider dispatchability as the set of all admissible nodal wind power injections that will not cause infeasibility in real-time dispatch (RTD). Our work reveals that the dispatchability of the affine policy based RTD (AF-RTD) is a polytope whose coefficients are linear functions of the generation schedule and the gain matrix of affine policy. Two mathematical formulations of the dispatchability maximized energy and reserve dispatch (DM-ERD) are proposed. The first one maximizes the distance from the forecast to the boundaries of the dispatchability polytope subject to the available production cost or reserve cost. Provided the forecast value and variance of wind power, the generalized Gauss inequality (GGI) is adopted to evaluate the probability of infeasible RTD without the exact probability distribution of wind power. Combining the first formulation and the GGI approach, the second one minimizes the total cost subject to a desired reliability level through dispatchability maximization. Efficient convex optimization based algorithms are developed to solve these two models. Different from the conventional robust optimization method, our model does not rely on the specific uncertainty set of wind generation and directly optimizes the uncertainty accommodation capability of the power system. The proposed method is also compared with the affine policy based robust energy and reserve dispatch (AR-ERD). Case studies on the PJM 5-bus system illustrate the proposed concept and method. Experiments on the IEEE 118-bus system demonstrate the applicability of our method on moderate sized systems and its scalability to large dimensional uncertainty. C1 [Wei, Wei; Mei, Shengwei] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China. [Wang, Jianhui] Argonne Natl Lab, Adv Power Grid Modeling, Energy Syst Div, Lemont, IL 60439 USA. RP Wei, W; Mei, SW (reprint author), Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China.; Wang, JH (reprint author), Argonne Natl Lab, Adv Power Grid Modeling, Energy Syst Div, Lemont, IL 60439 USA. EM wei-wei04@mails.tsinghua.edu.cn; jianhui.wang@anl.gov; meishengwei@mail.tsinghua.edu.cn FU National Natural Science Foundation of China [51577163]; Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51321005] FX This work was supported in part by the National Natural Science Foundation of China (51577163), and in part by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (51321005). Paper no. TPWRS-00755-2015. NR 51 TC 0 Z9 0 U1 10 U2 12 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 3276 EP 3288 DI 10.1109/TPWRS.2015.2477348 PG 13 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200074 ER PT J AU Dvorkin, Y Lubin, M Backhaus, S Chertkov, M AF Dvorkin, Yury Lubin, Miles Backhaus, Scott Chertkov, Michael TI Uncertainty Sets for Wind Power Generation SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article DE Power system operations; wind power uncertainty; wind power variability AB As penetration of wind power generation increases, system operators must account for its stochastic nature in a reliable and cost-efficient manner. These conflicting objectives can be traded-off by accounting for the variability and uncertainty of wind power generation. This letter presents a new methodology to estimate uncertainty sets for parameters of probability distributions that capture wind generation uncertainty and variability. C1 [Dvorkin, Yury] Univ Washington, Seattle, WA 98105 USA. [Lubin, Miles] MIT, Cambridge, MA 02139 USA. [Backhaus, Scott; Chertkov, Michael] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Dvorkin, Y (reprint author), Univ Washington, Seattle, WA 98105 USA. OI Backhaus, Scott/0000-0002-0344-6791; Chertkov, Michael/0000-0002-6758-515X FU Advanced Grid Modeling Program in the U.S. Department of Energy Office of Electricity [DE-AC52-06NA25396]; DOE Computational Science Graduate Fellowship FX This work was supported by the Advanced Grid Modeling Program in the U.S. Department of Energy Office of Electricity under Contract No. DE-AC52-06NA25396. The work of M. Lubin was supported by the DOE Computational Science Graduate Fellowship. Paper no. PESL-00068-2015. NR 7 TC 1 Z9 1 U1 1 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8950 EI 1558-0679 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD JUL PY 2016 VL 31 IS 4 BP 3326 EP 3327 DI 10.1109/TPWRS.2015.2476664 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA DL6UE UT WOS:000375774200082 ER PT J AU Sandhu, R Poirel, D Pettit, C Khalil, M Sarkar, A AF Sandhu, Rimple Poirel, Dominique Pettit, Chris Khalil, Mohammad Sarkar, Abhijit TI Bayesian inference of nonlinear unsteady aerodynamics from aeroelastic limit cycle oscillations SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Bayesian inference; Bayesian model selection; Nonlinear aeroelasticity; Limit cycle oscillation; Markov Chain Monte Carlo simulation; Kalman filter; Unsteady aerodynamics ID MODEL SELECTION; UNCERTAINTY QUANTIFICATION; MARGINAL LIKELIHOOD; REYNOLDS-NUMBERS; ADAPTIVE MCMC; SYSTEM; STABILITY; ALGORITHM; AIRFOIL; OUTPUT AB A Bayesian model selection and parameter estimation algorithm is applied to investigate the influence of nonlinear and unsteady aerodynamic loads on the limit cycle oscillation (LCO) of a pitching airfoil in the transitional Reynolds number regime. At small angles of attack, laminar boundary layer trailing edge separation causes negative aerodynamic damping leading to the LCO. The fluid-structure interaction of the rigid, but elastically mounted, airfoil and nonlinear unsteady aerodynamics is represented by two coupled nonlinear stochastic ordinary differential equations containing uncertain parameters and model approximation errors. Several plausible aerodynamic models with increasing complexity are proposed to describe the aeroelastic system leading to LCO. The likelihood in the posterior parameter probability density function (pdf) is available semi-analytically using the extended Kalman filter for the state estimation of the coupled nonlinear structural and unsteady aerodynamic model. The posterior parameter pdf is sampled using a parallel and adaptive Markov Chain Monte Carlo (MCMC) algorithm. The posterior probability of each model is estimated using the Chib-Jeliazkov method that directly uses the posterior MCMC samples for evidence (marginal likelihood) computation. The Bayesian algorithm is validated through a numerical study and then applied to model the nonlinear unsteady aerodynamic loads using wind-tunnel test data at various Reynolds numbers. (C) 2016 Published by Elsevier Inc. C1 [Sandhu, Rimple; Khalil, Mohammad; Sarkar, Abhijit] Carleton Univ, Dept Civil & Environm Engn, Ottawa, ON K1S 5B6, Canada. [Poirel, Dominique] Royal Mil Coll Canada, Dept Mech & Aerosp Engn, Kingston, ON, Canada. [Pettit, Chris] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA. [Khalil, Mohammad] Sandia Natl Labs, Livermore, CA USA. RP Sarkar, A (reprint author), Carleton Univ, Dept Civil & Environm Engn, Ottawa, ON K1S 5B6, Canada. EM abhijit.sarkar@carleton.ca RI Sarkar, Abhijit/E-6918-2012 OI Sarkar, Abhijit/0000-0002-8427-8901 FU Canadian Department of National Defence, through the DSRI-TIF program; Natural Sciences and Engineering Research Council of Canada; Natural Sciences and Engineering Research Council of Canada through the award of a Canada Graduate Scholarship; Canadian Department of National Defence; Canada Research Chair Program; Canada Foundation for Innovation (CFI); Ontario Innovation Trust (OIT); CLUMEQ; SciNet HPC Consortia at Canada FX The second author acknowledges the support of the Canadian Department of National Defence, through the DSRI-TIF program, and a Discovery Grant from Natural Sciences and Engineering Research Council of Canada. The fourth author acknowledges the support of the Natural Sciences and Engineering Research Council of Canada through the award of a Canada Graduate Scholarship and the Canadian Department of National Defence. The fifth author acknowledges the support of a Discovery Grant from Natural Sciences and Engineering Research Council of Canada and the Canada Research Chair Program. The computing infrastructure is supported by the Canada Foundation for Innovation (CFI), the Ontario Innovation Trust (OIT), CLUMEQ and SciNet HPC Consortia at Canada. NR 71 TC 0 Z9 0 U1 7 U2 13 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 2016 VL 316 BP 534 EP 557 DI 10.1016/j.jcp.2016.03.006 PG 24 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA DL7DE UT WOS:000375799200028 ER PT J AU Chacon, L Chen, G AF Chacon, L. Chen, G. TI A curvilinear, fully implicit, conservative electromagnetic PIC algorithm in multiple dimensions SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Conservative discretization; Darwin model; Fully implicit algorithms; Curvilinear meshes ID PARTICLE-IN-CELL; ADAPTIVE MESH REFINEMENT; SLOW MODE SHOCKS; PLASMA SIMULATION; NONLINEARLY IMPLICIT; PARALLEL COMPUTERS; MAXWELL EQUATIONS; DARWIN MODEL; CHARGE; GRIDS AB We extend a recently proposed fully implicit PIC algorithm for the Vlasov-Darwin model in multiple dimensions (Chen and Chacon (2015) [1]) to curvilinear geometry. As in the Cartesian case, the approach is based on a potential formulation (phi, A), and overcomes many difficulties of traditional semi-implicit Darwin PIC algorithms. Conservation theorems for local charge and global energy are derived in curvilinear representation, and then enforced discretely by a careful choice of the discretization of field and particle equations. Additionally, the algorithm conserves canonical-momentum in any ignorable direction, and preserves the Coulomb gauge del . A = 0 exactly. An asymptotically well-posed fluid preconditioner allows efficient use of large cell sizes, which are determined by accuracy considerations, not stability, and can be orders of magnitude larger than required in a standard explicit electromagnetic PIC simulation. We demonstrate the accuracy and efficiency properties of the algorithm with numerical experiments in mapped meshes in 1D-3V and 2D-3V. (C) 2016 Elsevier Inc. All rights reserved. C1 [Chacon, L.; Chen, G.] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RP Chacon, L (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM chacon@lanl.gov OI Chacon, Luis/0000-0002-4566-8763; Chen, Guangye/0000-0002-8800-5791 FU Los Alamos National Laboratory Directed Research and Development program (LDRD); Office of Applied Scientific Computing Research of the US Department of Energy (DOE); National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX This work was partially sponsored by the Los Alamos National Laboratory Directed Research and Development program (LDRD) and by the Office of Applied Scientific Computing Research of the US Department of Energy (DOE). This work was performed under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory, managed by LANS, LLC under contract DE-AC52-06NA25396. NR 50 TC 3 Z9 3 U1 5 U2 8 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 2016 VL 316 BP 578 EP 597 DI 10.1016/j.jcp.2016.03.070 PG 20 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA DL7DE UT WOS:000375799200031 ER PT J AU Greene, PT Eldredge, JD Zhong, XL Kim, J AF Greene, Patrick T. Eldredge, Jeff D. Zhong, Xiaolin Kim, John TI A high-order multi-zone cut-stencil method for numerical simulations of high-speed flows over complex geometries SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Cut-stencil; Multi-zone refinement; High-order; Complex geometry; Cartesian grid ID ADAPTIVE MESH REFINEMENT; IMMERSED BOUNDARY METHOD; CARTESIAN GRID METHOD; GHOST FLUID METHOD; SCHEMES; TRANSITION; DYNAMICS; VERSION; LAYERS; HEART AB In this paper, we present a method for performing uniformly high-order direct numerical simulations of high-speed flows over arbitrary geometries. The method was developed with the goal of simulating and studying the effects of complex isolated roughness elements on the stability of hypersonic boundary layers. The simulations are carried out on Cartesian grids with the geometries imposed by a third-order cut-stencil method. A fifth-order hybrid weighted essentially non-oscillatory scheme was implemented to capture any steep gradients in the flow created by the geometries and a third-order Runge-Kutta method is used for time advancement. A multi-zone refinement method was also utilized to provide extra resolution at locations with expected complex physics. The combination results in a globally fourth-order scheme in space and third order in time. Results confirming the method's high order of convergence are shown. Two-dimensional and three-dimensional test cases are presented and show good agreement with previous results. A simulation of Mach 3 flow over the logo of the Ubuntu Linux distribution is shown to demonstrate the method's capabilities for handling complex geometries. Results for Mach 6 wall-bounded flow over a three-dimensional cylindrical roughness element are also presented. The results demonstrate that the method is a promising tool for the study of hypersonic roughness-induced transition. (C) 2016 Elsevier Inc. All rights reserved. C1 [Greene, Patrick T.; Eldredge, Jeff D.; Zhong, Xiaolin; Kim, John] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, 420 Westwood Plaza, Los Angeles, CA 90095 USA. RP Greene, PT (reprint author), Lawrence Livermore Natl Lab, Los Angeles, CA USA. EM greene@ucla.edu RI Eldredge, Jeff/B-6837-2009; OI Eldredge, Jeff/0000-0002-2672-706X; Greene, Patrick/0000-0001-7575-8906 FU NASA Fundamental Aeronautics Program [NNX07AC39A]; AFOSR/NASA National Center for Hypersonic Research in Laminar-Turbulent Transition; National Science Foundation FX The authors gratefully acknowledge support by the NASA Fundamental Aeronautics Program, under cooperative agreement NNX07AC39A, monitored by Dr. Meelan Choudhari and the partial support of the AFOSR/NASA National Center for Hypersonic Research in Laminar-Turbulent Transition headed by Professor W. Saric at Texas A&M University. The computer time for this work was provided by the NASA Ames Research Center Advanced Supercomputing Division and the Extreme Science and Engineering Discovery Environment (XSEDE) supported by the National Science Foundation. NR 42 TC 0 Z9 0 U1 1 U2 6 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 2016 VL 316 BP 652 EP 681 DI 10.1016/j.jcp.2016.04.032 PG 30 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA DL7DE UT WOS:000375799200035 ER PT J AU Wang, XY Samulyak, R Jiao, XM Yu, KM AF Wang, Xingyu Samulyak, Roman Jiao, Xiangmin Yu, Kwangmin TI AP-Cloud: Adaptive Particle-in-Cloud method for optimal solutions to Vlasov-Poisson equation SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Particle method; Generalized finite difference; PIC; AMR-PIC ID FINITE-DIFFERENCE METHOD; EMBEDDED BOUNDARY METHOD; MESH REFINEMENT; SIMULATIONS; PLASMAS AB We propose a new adaptive Particle-in-Cloud (AP-Cloud) method for obtaining optimal numerical solutions to the Vlasov-Poisson equation. Unlike the traditional particle-in-cell (PIC) method, which is commonly used for solving this problem, the AP-Cloud adaptively selects computational nodes or particles to deliver higher accuracy and efficiency when the particle distribution is highly non-uniform. Unlike other adaptive techniques for PIC, our method balances the errors in PDE discretization and Monte Carlo integration, and discretizes the differential operators using a generalized finite difference (GFD) method based on a weighted least square formulation. As a result, AP-Cloud is independent of the geometric shapes of computational domains and is free of artificial parameters. Efficient and robust implementation is achieved through an octree data structure with 2: 1 balance. We analyze the accuracy and convergence order of AP-Cloud theoretically, and verify the method using an electrostatic problem of a particle beam with halo. Simulation results show that the AP-Cloud method is substantially more accurate and faster than the traditional PIC, and it is free of artificial forces that are typical for some adaptive PIC techniques. Published by Elsevier Inc. C1 [Wang, Xingyu; Samulyak, Roman; Jiao, Xiangmin; Yu, Kwangmin] SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA. [Samulyak, Roman; Yu, Kwangmin] Brookhaven Natl Lab, Computat Sci Initiat, Upton, NY 11973 USA. RP Samulyak, R (reprint author), SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA. EM roman.samulyak@stonybrook.edu FU U.S. Department of Energy [DE-AC02-98CH10886, DE-SC0012704] FX This work was supported in part by the U.S. Department of Energy, Contract No. DE-AC02-98CH10886. This manuscript has been authored in part by Brookhaven Science Associates, LLC, under Contract No. DE-SC0012704 with the US Department of Energy. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges, a world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purpose. NR 14 TC 1 Z9 1 U1 2 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 JUL 1 PY 2016 VL 316 BP 682 EP 699 DI 10.1016/j.jcp.2016.04.037 PG 18 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA DL7DE UT WOS:000375799200036 ER PT J AU Mackey, J Dynys, F Hudak, BM Guiton, BS Sehirlioglu, A AF Mackey, Jon Dynys, Frederick Hudak, Bethany M. Guiton, Beth S. Sehirlioglu, Alp TI Co (x) Ni4-x Sb12-y Sn (y) skutterudites: processing and thermoelectric properties SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID HIGH-PERFORMANCE THERMOELECTRICS AB N-type and p-type skutterudite samples with the composition Co (x) Ni4-x Sb12-y Sn (y) were synthesized with composition range 0 < x < 2 and 3 < y < 5. Samples were pre-processed by solidification into ingots. Skutterudite phase formation was achieved by mechanical alloying the crushed ingots. The milled powders were consolidated to dense pellets by hot pressing. Thermoelectric measurements showed limited high-temperature performance below 400 A degrees C. Skutterudite decomposition above 250 A degrees C was detrimental to Seebeck coefficient. The thermoelectric transport properties can be tuned by varying the Co and Sn level. The lowest lattice thermal conductivity measured was 1.0 W m(-1) K-1 for the Co level of 1.5. The Seebeck coefficient was positive for Co levels > 0.8 and negative otherwise. Seebeck coefficients were low, ranging from -40 to 58 A mu V K-1. The combination of transmission electron microscopy with electron energy loss spectroscopy and powder X-ray diffraction established that Sn can substitute on 2a and 24g sites in the skutterudite structure. Due to the low Seebeck coefficients, the alloys exhibited low figure of merits (ZT) < 0.05. C1 [Mackey, Jon; Sehirlioglu, Alp] Case Western Reserve Univ, Mat Sci & Engn, Cleveland, OH 44106 USA. [Dynys, Frederick] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA. [Hudak, Bethany M.; Guiton, Beth S.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Guiton, Beth S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Mackey, J (reprint author), Case Western Reserve Univ, Mat Sci & Engn, Cleveland, OH 44106 USA. EM jonathan.a.mackey@gmail.com; frederick.w.dynys@nasa.gov; bethany.hudak@uky.edu; beth.guiton@uky.edu; axs461@case.edu OI Mackey, Jonathan/0000-0003-1053-7007 FU Office of Basic Energy Sciences, Materials Sciences and Engineering Division, U.S. Department of Energy; NASA/USRA [04555-004]; NASA Radioisotope Power System Program; NASA Kentucky under NASA Award [NNX10AL96H] FX The authors would like to thank Ben Kowalski, Tom Sabo, Serene Farmer, Ray Babuder, and Dereck Johnson from NASA Glenn Research Center and Case Western Reserve University for help with the experimental portion of this work. The authors would also like to thank Sabah Bux and Jean-Pierre Fleurial from NASA JPL for helpful discussions and assistance with hot pressing some samples. This research was supported in part by the Office of Basic Energy Sciences, Materials Sciences and Engineering Division, U.S. Department of Energy. Funding for this work was provided by funding source NASA/USRA 04555-004, the NASA Radioisotope Power System Program, and by NASA Kentucky under NASA Award No: NNX10AL96H. NR 35 TC 0 Z9 0 U1 11 U2 36 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 EI 1573-4803 J9 J MATER SCI JI J. Mater. Sci. PD JUL PY 2016 VL 51 IS 13 BP 6117 EP 6132 DI 10.1007/s10853-016-9868-9 PG 16 WC Materials Science, Multidisciplinary SC Materials Science GA DK1NB UT WOS:000374678400002 ER PT J AU Polat, BD Keles, O Chen, ZH Amine, K AF Polat, B. D. Keles, O. Chen, Z. H. Amine, K. TI Si-Cu alloy nanowires grown by oblique angle deposition as a stable negative electrode for Li-ion batteries SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID PERCOLATION THRESHOLDS; PRECISE DETERMINATION; 3 DIMENSIONS; 3-DIMENSIONAL PERCOLATION; NANOCOMPOSITE MATERIALS; ANODE MATERIALS; HIGH-CAPACITY; THIN-FILMS; SILICON; PERFORMANCE AB Thin films having nanocolumnar arrays made of various Si-Cu atomic ratios (90-10, 80-20, 70-30 %) are fabricated by an ion-assisted oblique angle co-deposition technique to produce stable negative electrodes for lithium-ion batteries. Cu is added into the electrode because of its ductility and electron conductivity. Cu plays a crucial role in holding the electrode together, minimizing overall capacity loss and enabling faster electron transfer. Plus, Cu is inactive versus Li+; therefore, Si-Cu variation is expected to affect the electrochemical performances of the electrodes. In this work, the effect of Si-Cu atomic ratios on the morphologies and the structures of the electrodes are studied. Plus, the uses of these nanocolumns with different Cu contents are evaluated as anodes by electrochemical tests. The morphological analyses demonstrate that an increase in Si-Cu atomic ratio affects the width of the nanocolumns and the homogeneity of the thin film morphology. The increase in Cu content dramatically improves the capacity retention of Si-Cu anodes, whereas it decreases the initial discharge capacity. C1 [Polat, B. D.; Keles, O.] Dept Met & Mat Sci Engn, Ayazaga Campus, TR-34469 Istanbul, Turkey. [Chen, Z. H.; Amine, K.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Keles, O (reprint author), Dept Met & Mat Sci Engn, Ayazaga Campus, TR-34469 Istanbul, Turkey.; Amine, K (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM ozgulkeles@itu.edu.tr; amine@anl.gov FU Scientific and Technological Research Council of Turkey (TUBITAK) [213M511]; U.S. Department of Energy (DOE), Vehicle Technologies Office; US Department of Energy by UChicago Argonne, LLC [DE-AC02-06CH11357] FX This work is a part of the research Project 213M511 approved by The Scientific and Technological Research Council of Turkey (TUBITAK). Research at Argonne National Laboratory was funded by the U.S. Department of Energy (DOE), Vehicle Technologies Office. Argonne National Laboratory is operated for the US Department of Energy by UChicago Argonne, LLC, under contract DE-AC02-06CH11357. NR 49 TC 2 Z9 2 U1 18 U2 76 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 EI 1573-4803 J9 J MATER SCI JI J. Mater. Sci. PD JUL PY 2016 VL 51 IS 13 BP 6207 EP 6219 DI 10.1007/s10853-016-9918-3 PG 13 WC Materials Science, Multidisciplinary SC Materials Science GA DK1NB UT WOS:000374678400009 ER PT J AU Abgrall, N Arnquist, IJ AvignoneIIId, FT Barabash, AS Bertrand, FE Bradley, AW Brudanin, V Busch, M Buuck, M Byram, D Caldwell, AS Chan, YD Christofferson, CD Chu, PH Cuesta, C Detwiler, JA Doe, PJ Dunagan, C Efremenko, Y Ejiri, H Elliott, SR Fu, Z Galindo-Uribarri, A Giovanetti, GK Goett, J Green, MP Gruszko, J Guinn, IS Guiseppe, VE Henning, R Hoppe, EW Howard, S Howe, MA Jasinski, BR Keeter, KJ Kidd, MF Konovalov, SI Kouzes, RT LaFerriere, BD Leon, J Li, A MacMullin, J Martin, RD Massarczyk, R Meijer, SJ Mertens, S Orrell, JL O'Shaughnessy, C Poon, AWP Radford, DC Rager, J Rielage, K Robertson, RGH Romero-Romero, E Shanks, B Shirchenko, M Snyder, N Suriano, AM Tedeschi, D Thompson, A Ton, KT Trimble, JE Varner, RL Vasilyev, S Vetter, K Vorren, K White, BR Wilkerson, JF Wiseman, C Xu, W Yakushev, E Yu, CH Yumatov, V AF Abgrall, N. Arnquist, I. J. Avignone, F. T., III Barabash, A. S. Bertrand, F. E. Bradley, A. W. Brudanin, V. Busch, M. Buuck, M. Byram, D. Caldwell, A. S. Chan, Y-D. Christofferson, C. D. Chu, P. -H. Cuesta, C. Detwiler, J. A. Doe, P. J. Dunagan, C. Efremenko, Yu. Ejiri, H. Elliott, S. R. Fu, Z. Galindo-Uribarri, A. Giovanetti, G. K. Goett, J. Green, M. P. Gruszko, J. Guinn, I. S. Guiseppe, V. E. Henning, R. Hoppe, E. W. Howard, S. Howe, M. A. Jasinski, B. R. Keeter, K. J. Kidd, M. F. Konovalov, S. I. Kouzes, R. T. LaFerriere, B. D. Leon, J. Li, A. MacMullin, J. Martin, R. D. Massarczyk, R. Meijer, S. J. Mertens, S. Orrell, J. L. O'Shaughnessy, C. Poon, A. W. P. Radford, D. C. Rager, J. Rielage, K. Robertson, R. G. H. Romero-Romero, E. Shanks, B. Shirchenko, M. Snyder, N. Suriano, A. M. Tedeschi, D. Thompson, A. Ton, K. T. Trimble, J. E. Varner, R. L. Vasilyev, S. Vetter, K. Vorren, K. White, B. R. Wilkerson, J. F. Wiseman, C. Xu, W. Yakushev, E. Yu, C. -H. Yumatov, V. TI High voltage testing for the MAJORANA DEMONSTRATOR SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE High-voltage; Micro-discharge; Vacuum; MAJORANA ID HE-3 PROPORTIONAL-COUNTERS; MICRO-DISCHARGE; NEUTRINOS AB The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultra-low background, 44-kg modular high-purity Ge (HPGe) detector array to search for neutrinoless double-beta decay in Ge-76. The phenomenon of surface micro-discharge induced by high-voltage has been studied in the context of the MAJORANA DEMONSTRATOR. This effect can damage the front-end electronics or mimic detector signals. To ensure the correct performance, every high-voltage cable and feedthrough must be capable of supplying HPGe detector operating voltages as high as 5 kV without exhibiting discharge. R&D measurements were carried out to understand the testing system and determine the optimum design configuration of the high-voltage path, including different improvements of the cable layout and feedthrough flange model selection. Every cable and feedthrough to be used at the MAJORANA DEMONSTRATOR was characterized and the micro-discharge effects during the MAJORANA DEMONSTRATOR commissioning phase were studied. A stable configuration has been achieved, and the cables and connectors can supply HPGe detector operating voltages without exhibiting discharge. (C) 2016 Elsevier B.V. All rights reserved. C1 [Buuck, M.; Cuesta, C.; Detwiler, J. A.; Doe, P. J.; Fu, Z.; Gruszko, J.; Guinn, I. S.; Leon, J.; Li, A.; Robertson, R. G. H.; Thompson, A.; Ton, K. T.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. [Buuck, M.; Cuesta, C.; Detwiler, J. A.; Doe, P. J.; Fu, Z.; Gruszko, J.; Guinn, I. S.; Leon, J.; Li, A.; Robertson, R. G. H.; Thompson, A.; Ton, K. T.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Abgrall, N.; Bradley, A. W.; Chan, Y-D.; Mertens, S.; Poon, A. W. P.; Vetter, K.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Arnquist, I. J.; Hoppe, E. W.; Kouzes, R. T.; LaFerriere, B. D.; Orrell, J. L.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Avignone, F. T., III; Guiseppe, V. E.; Tedeschi, D.; Wiseman, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Avignone, F. T., III; Bertrand, F. E.; Galindo-Uribarri, A.; Green, M. P.; Radford, D. C.; Romero-Romero, E.; Varner, R. L.; Wilkerson, J. F.; Yu, C. -H.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Barabash, A. S.; Konovalov, S. I.; Yumatov, V.] Inst Theoret & Expt Phys, Kurchatov Inst, Natl Res Ctr, Moscow 117259, Russia. [Chu, P. -H.; Elliott, S. R.; Goett, J.; Massarczyk, R.; Rielage, K.; White, B. R.; Xu, W.] Los Alamos Natl Lab, Los Alamos, NM USA. [Brudanin, V.; Shirchenko, M.; Vasilyev, S.; Yakushev, E.] Joint Inst Nucl Res, Dubna, Russia. [Busch, M.] Duke Univ, Dept Phys, Durham, NC 27706 USA. [Busch, M.; Giovanetti, G. K.; Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Triangle Univ Nucl Lab, Durham, NC 27706 USA. [Byram, D.; Jasinski, B. R.; Snyder, N.] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA. [Caldwell, A. S.; Christofferson, C. D.; Dunagan, C.; Howard, S.; Suriano, A. M.] South Dakota Sch Mines & Technol, Rapid City, SD USA. [Efremenko, Yu.; Romero-Romero, E.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Ejiri, H.] Osaka Univ, Nucl Phys Res Ctr, Osaka, Japan. [Ejiri, H.] Osaka Univ, Dept Phys, Osaka, Japan. [Giovanetti, G. K.; Henning, R.; Howe, M. A.; MacMullin, J.; Meijer, S. J.; O'Shaughnessy, C.; Rager, J.; Shanks, B.; Trimble, J. E.; Vorren, K.; Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC USA. [Keeter, K. J.] Black Hills State Univ, Dept Phys, Spearfish, SD 57799 USA. [Kidd, M. F.] Tennessee Technol Univ, Cookeville, TN USA. [Martin, R. D.] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON, Canada. [Vetter, K.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. RP Cuesta, C (reprint author), Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. EM ccuesta@uw.edu RI Xu, Wenqin/H-7553-2014; Barabash, Alexander/S-8851-2016; Cuesta, Clara/L-5466-2014; Orrell, John/E-9313-2015; OI Xu, Wenqin/0000-0002-5976-4991; Cuesta, Clara/0000-0003-1190-7233; Orrell, John/0000-0001-7968-4051; Chu, Pinghan/0000-0003-1372-2910; Rielage, Keith/0000-0002-7392-7152 FU U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-05CH11231, DE-AC52-06NA25396, DE-FG02-97ER41041, DE-FG02-97ER41033, DE-FG02-97ER41042, DE-5C0012612, DE-FG02-10ER41715, DE-5C0010254, DE-FG02-97ER41020]; Particle Astrophysics Program and Nuclear Physics Program of the National Science Foundation [PHY-0919270, PHY-1003940, 0855314, PHY-1202950, MRI 0923142, 1003399]; Russian Foundation for Basic Research [15-02-02919]; U.S. Department of Energy through the LANL/LDRD Program; DOE Office of Science User Facility [DE-AC05-00OR22725]; National Energy Research Scientific Computing Center, a DOE Office of Science User Facility [DE-AC02-05CH11231] FX This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Award Numbers DE-AC02-05CH11231, DE-AC52-06NA25396, DE-FG02-97ER41041, DE-FG02-97ER41033, DE-FG02-97ER41042, DE-5C0012612, DE-FG02-10ER41715, DE-5C0010254, and DE-FG02-97ER41020. We acknowledge support from the Particle Astrophysics Program and Nuclear Physics Program of the National Science Foundation through grant numbers PHY-0919270, PHY-1003940, 0855314, PHY-1202950, MRI 0923142 and 1003399. We acknowledge support from the Russian Foundation for Basic Research, grant No. 15-02-02919. We acknowledge the support of the U.S. Department of Energy through the LANL/LDRD Program. This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported under Contract No. DE-AC02-05CH11231. We thank our hosts and colleagues at the Sanford Underground Research Facility for their support. NR 15 TC 0 Z9 0 U1 2 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD JUL 1 PY 2016 VL 823 BP 83 EP 90 DI 10.1016/j.nima.2016.04.006 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA DK1GX UT WOS:000374661600012 ER PT J AU Denisov, D Evdokimov, V Lukic, S AF Denisov, Dmitri Evdokimov, Valery Lukic, Strahinja TI Time and position resolution of the scintillator strips for a muon system at future colliders SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Linear Collider; Muon system; Scintillator; Position resolution; Time resolution ID SILICON PHOTOMULTIPLIER AB Prototype scintilator + WLS strips with SiPM readout for a muon system at future colliders were tested for light yield, time resolution and position resolution. Depending on the configuration, light yield of up to 36 photoelectrons per muon per SiPM has been observed, as well as time resolution of 0.45 ns and position resolution along the strip of 7.7 cm. (C) 2016 Elsevier B.V. All rights reserved. C1 [Denisov, Dmitri] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Evdokimov, Valery] Inst High Energy Phys, Protvino, Russia. [Lukic, Strahinja] Univ Belgrade, Vinca Inst, Belgrade 11001, Serbia. RP Lukic, S (reprint author), Univ Belgrade, Vinca Inst, Belgrade 11001, Serbia. EM slukic@vinca.rs FU Ministry of Education and Science; National Research Center "Kurchatov Institute" (Russian Federation); Ministry of Education, Science and Technological Development (Republic of Serbia) [01171012]; Department of Energy (United States of America) FX The authors acknowledge the support received from the Ministry of Education and Science and the National Research Center "Kurchatov Institute" (Russian Federation), from the Ministry of Education, Science and Technological Development (Republic of Serbia) within the project 01171012 and from the Department of Energy (United States of America). NR 22 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD JUL 1 PY 2016 VL 823 BP 120 EP 125 DI 10.1016/j.nima.2016.03.091 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA DK1GX UT WOS:000374661600016 ER PT J AU Dewji, SA Lee, DL Croft, S Hertel, NE Chapman, JA McElroy, RD Cleveland, S AF Dewji, S. A. Lee, D. L. Croft, S. Hertel, N. E. Chapman, J. A. McElroy, R. D., Jr. Cleveland, S. TI Validation of gamma-ray detection techniques for safeguards monitoring at natural uranium conversion facilities SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Natural uranium; International safeguards; Conversion; Significant quantity; Gamma-ray detection; Uncertainty; Passive detection; Nondestructive assay AB Recent IAEA circulars and policy papers have sought to implement safeguards when any purified aqueous uranium solution or uranium oxides suitable for isotopic enrichment or fuel fabrication exists. Under the revised policy, IAEA Policy Paper 18, the starting point for nuclear material under safeguards was reinterpreted, suggesting that purified uranium compounds should be subject to safeguards procedures no later than the first point in the conversion process. In response to this technical need, a combination of simulation models and experimental measurements were employed to develop and validate concepts of nondestructive assay monitoring systems in a natural uranium conversion plant (NUCP). In particular, uranyl nitrate (UO2(NO3)(2)) solution exiting solvent extraction was identified as a key measurement point (KMP), where gamma-ray spectroscopy was selected as the process monitoring tool. The Uranyl Nitrate Calibration Loop Equipment (UNCLE) facility at Oak Ridge National Laboratory was employed to simulate the full-scale operating conditions of a purified uranium-bearing aqueous stream exiting the solvent extraction process in an NUCP. Nondestructive assay techniques using gamma-ray spectroscopy were evaluated to determine their viability as a technical means for drawing safeguards conclusions at NUCP5, and if the IAEA detection requirements of 1 significant quantity (SQ) can be met in a timely way. This work investigated gamma-ray signatures of uranyl nitrate circulating in the UNCLE facility and evaluated various gamma-ray detector sensitivities to uranyl nitrate. These detector validation activities include assessing detector responses to the uranyl nitrate gamma-ray signatures for spectrometers based on sodium iodide, lanthanum bromide, and high-purity germanium detectors. The results of measurements under static and dynamic operating conditions at concentrations ranging from 10-90 g U/L of natural uranyl nitrate are presented. A range of gamma-ray lines is examined, including attenuation for transmission measurement of density and concentration. It was determined that transmission-corrected gamma-ray spectra provide a reliable way to monitor the U-235 concentration of uranyl nitrate solution in transfer pipes in NUCP5. Furthermore, existing predictive and analysis methods are adequate to design and realize practical designs. The Cs-137 transmission source employed in this work is viable but not optimal for U-235 densitometry determination. Validated simulations assessed the viability of Ba-133 and Co-57 as alternative densitometry sources. All three gamma-ray detectors are viable for monitoring natural uranium feed; although high-purity germanium is easiest to interpret, it is, however, the least attractive as an installation instrument. Overall, for monitoring throughput in a facility such as UNCLE, emulating the uranium concentration and pump speeds of the Springflelds conversion facility in the United Kingdom, an uncertainty of less than 0.17% is required in order to detect the diversion of 1 SQ of uranyl nitrate through changes in uranium concentration over an accountancy period of one year with a detection probability of 50%. Although calibrated gamma-ray detection systems are capable of determining the concentration of uranium content in NUCPs, it is only in combination with verifiable operator declarations and supporting data, such as flow rate and enrichment, that safeguards conclusions can be drawn. (C) 2016 Elsevier B.V. All rights reserved. C1 [Dewji, S. A.; Lee, D. L.; Croft, S.; Hertel, N. E.; Chapman, J. A.; McElroy, R. D., Jr.; Cleveland, S.] Oak Ridge Natl Lab, 1 Bethel Valley Rd,MS-6335, Oak Ridge, TN 37831 USA. [Hertel, N. E.] Georgia Inst Technol, Nucl & Radiol Engn Program, 770 State St, Atlanta, GA 30332 USA. RP Dewji, SA (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd,MS-6335, Oak Ridge, TN 37831 USA. EM dewjisa@ornl.gov RI Dewji, Shaheen/J-6634-2016 OI Dewji, Shaheen/0000-0002-3699-5877 FU National Nuclear Security Administration Office of Nonproliferation and Arms Control, International Nuclear Safeguards Technology Development and Human Capital Development subprograms FX This work was supported by the National Nuclear Security Administration Office of Nonproliferation and Arms Control, International Nuclear Safeguards Technology Development and Human Capital Development subprograms. NR 42 TC 2 Z9 2 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD JUL 1 PY 2016 VL 823 BP 135 EP 148 DI 10.1016/j.nima.2016.03.069 PG 14 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA DK1GX UT WOS:000374661600018 ER PT J AU Jin, K Lu, C Wang, LM Qu, J Weber, WJ Zhang, Y Bei, H AF Jin, K. Lu, C. Wang, L. M. Qu, J. Weber, W. J. Zhang, Y. Bei, H. TI Effects of compositional complexity on the ion-irradiation induced swelling and hardening in Ni-containing equiatomic alloys SO SCRIPTA MATERIALIA LA English DT Article DE Irradiation; Swelling; Alloy; Nanoindentation ID SOLID-SOLUTION ALLOYS; HIGH-ENTROPY ALLOYS; FE-CR-MN; MATERIALS CHALLENGES; ATOMISTIC SIMULATIONS; STRUCTURAL-MATERIALS; NEUTRON-IRRADIATION; DEFECT EVOLUTION; STAINLESS-STEEL; PHASE-STABILITY AB The impact of compositional complexity on the ion-irradiation induced swelling and hardening is studied in Ni and six Ni-containing equiatomic alloys with face-centered cubic structure. The irradiation resistance at the temperature of 500 degrees C is improved by controlling the number and, especially, the type of alloying elements. Alloying with Fe and Mn has a stronger influence on swelling reduction than does alloying with Co and Cr. The quinary alloy NiCoFeCrMn, with known excellent mechanical properties, has shown 40 times higher swelling tolerance than nickel. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Jin, K.; Qu, J.; Weber, W. J.; Zhang, Y.; Bei, H.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Lu, C.; Wang, L. M.] Univ Michigan, Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA. [Weber, W. J.; Zhang, Y.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. RP Bei, H (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. EM beih@ornl.gov RI Weber, William/A-4177-2008; OI Weber, William/0000-0002-9017-7365; Bei, Hongbin/0000-0003-0283-7990 FU Energy Dissipation to Defect Evolution (EDDE), an Energy Frontier Research Center - US Department of Energy, Office of Science, Basic Energy Sciences FX This work was supported as part of the Energy Dissipation to Defect Evolution (EDDE), an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Basic Energy Sciences. Ion beam work was performed at the University of Tennessee-Oak Ridge National Laboratory Ion Beam Materials Laboratory (IBML) located on the campus of the University of Tennessee-Knoxville. NR 35 TC 6 Z9 6 U1 14 U2 46 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 1 PY 2016 VL 119 BP 65 EP 70 DI 10.1016/j.scriptamat.2016.03.030 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA DL7IK UT WOS:000375814200015 ER PT J AU Naito, PK Ogawa, Y Sawada, D Nishiyama, Y Iwata, T Wada, M AF Naito, Philip-Kunio Ogawa, Yu Sawada, Daisuke Nishiyama, Yoshiharu Iwata, Tadahisa Wada, Masahisa TI X-ray Crystal Structure of Anhydrous Chitosan at Atomic Resolution SO BIOPOLYMERS LA English DT Article DE chitosan; fiber X-ray diffraction; crystal structure ID NEUTRON FIBER DIFFRACTION; HYDROGEN-BONDING SYSTEM; CELLULOSE-II; HYDRATED CHITOSAN; ACID COMPLEX; POLYMORPH; SALTS AB We determined the crystal structure of anhydrous chitosan at atomic resolution, using X-ray fiber diffraction data extending to 1.17 angstrom resolution. The unit cell [a = 8.129(7) angstrom, b = 8.347(6) angstrom, c = 10.311(7) angstrom, space group P2(1)2(1)2(1)] of anhydrous chitosan contains two chains having one glucosamine residue in the asymmetric unit with the primary hydroxyl group in the gt conformation, that could be directly located in the Fourier omit map. The molecular arrangement of chitosan is very similar to the corner chains of cellulose II implying similar intermolecular hydrogen bonding between O6 and the amine nitrogen atom, and an intramolecular bifurcated hydrogen bond from O3 to O5 and O6. In addition to the classical hydrogen bonds, all the aliphatic hydrogens were involved in one or two weak hydrogen bonds, mostly helping to stabilize cohesion between antiparallel chains. (C) 2016 Wiley Periodicals, Inc. C1 [Naito, Philip-Kunio; Iwata, Tadahisa] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biomat Sci, Tokyo 1138657, Japan. [Ogawa, Yu; Nishiyama, Yoshiharu] CNRS, CERMAV, F-38000 Grenoble, France. [Ogawa, Yu; Nishiyama, Yoshiharu] Univ Grenoble Alpes, CERMAV, F-38000 Grenoble, France. [Sawada, Daisuke] Oak Ridge Natl Lab, Biol & Soft Matter Div, Oak Ridge, TN 37831 USA. [Wada, Masahisa] Kyoto Univ, Div Forest & Biomat Sci, Grad Sch Agr, Sakyo Ku, Kyoto 6068502, Japan. [Wada, Masahisa] Kyung Hee Univ, Coll Life Sci, Dept Plant & Environm New Resources, Yongin 446701, Gyeonggi Do, South Korea. RP Iwata, T (reprint author), Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biomat Sci, Tokyo 1138657, Japan.; Nishiyama, Y (reprint author), CNRS, CERMAV, F-38000 Grenoble, France.; Nishiyama, Y (reprint author), Univ Grenoble Alpes, CERMAV, F-38000 Grenoble, France. EM yoshi@cermav.cnrs.fr; wadam@kais.kyoto-u.ac.jp OI Ogawa, Yu/0000-0003-0677-7913 FU Japan Society for Promotion of Science (JSPS) FX Contract grant sponsor: Japan Society for the Promotion of Science (JSPS) NR 32 TC 0 Z9 0 U1 7 U2 16 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0006-3525 EI 1097-0282 J9 BIOPOLYMERS JI Biopolymers PD JUL PY 2016 VL 105 IS 7 BP 361 EP 368 DI 10.1002/bip.22818 PG 8 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA DK2WL UT WOS:000374775000001 PM 26930586 ER PT J AU Abdul, PM Jahim, JM Harun, S Markom, M Lutpi, NA Hassan, O Balan, V Dale, BE Nor, MTM AF Abdul, Peer Mohamed Jahim, Jamaliah Md. Harun, Shuhaida Markom, Masturah Lutpi, Nabilah Aminah Hassan, Osman Balan, Venkatesh Dale, Bruce E. Nor, Mohd Tusirin Mohd TI Effects of changes in chemical and structural characteristic of ammonia fibre expansion (AFEX) pretreated oil palm empty fruit bunch fibre on enzymatic saccharification and fermentability for biohydrogen SO BIORESOURCE TECHNOLOGY LA English DT Article DE Ammonia fibre expansion (AFEX); Oil palm empty fruit bunch (OPEFB) fibre; Biohydrogen; Oil palm residues; Biomass characterisation ID LIGNOCELLULOSIC BIOMASS; STEAM PRETREATMENT; ETHANOL-PRODUCTION; FTIR SPECTROSCOPY; AQUEOUS AMMONIA; IONIC LIQUID; CORN STOVER; HYDROLYSIS; FERMENTATION; OPTIMIZATION AB Oil palm empty fruit bunch (OPEFB) fibre is widely available in Southeast Asian countries and found to have 60% (w/w) sugar components. OPEFB was pretreated using the ammonia fibre expansion (AFEX) method and characterised physically by the Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The results show that there were significant structural changes in OPEFB after the pretreatment step, and the sugar yield after enzymatic hydrolysis using a cocktail of Cellic Ctec2 (R) and Cellic Htec2 (R) increased from 0.15 g g(-1) of OPEFB in the raw untreated OPEFB sample to 0.53 g g(-1) of OPEFB in AFEX-pretreated OPEFB (i.e. almost a fourfold increase in sugar conversion), which enhances the economic value of OPEFB. A biohydrogen fermentability test of this hydrolysate was carried out using a locally isolated bacterium, Enterobacter sp. KBH6958. The biohydrogen yield after 72 h of fermentation was 1.68 mol H-2 per mol sugar. Butyrate, ethanol, and acetate were the major metabolites. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Abdul, Peer Mohamed; Jahim, Jamaliah Md.; Harun, Shuhaida; Markom, Masturah; Lutpi, Nabilah Aminah] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Bangi 43600, Selangor, Malaysia. [Jahim, Jamaliah Md.; Harun, Shuhaida; Nor, Mohd Tusirin Mohd] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Res Ctr Sustainable Proc Technol, Ukm Bangi 43600, Selangor, Malaysia. [Hassan, Osman] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Selangor, Malaysia. [Balan, Venkatesh; Dale, Bruce E.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, Dept Chem Engn & Mat Sci, E Lansing, MI 48823 USA. RP Jahim, JM (reprint author), Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Bangi 43600, Selangor, Malaysia. EM jamal@ukm.edu.my RI Harun, Shuhaida/M-1979-2016 OI Harun, Shuhaida/0000-0003-1281-6077 FU Universiti Kebangsaan Malaysia-Yayasan Sime Darby (UKM-YSD) Chair in Sustainable Development: Zero Waste Technology for the Palm Oil Industry FX We gratefully acknowledge the financial and technical support provided by Universiti Kebangsaan Malaysia-Yayasan Sime Darby (UKM-YSD) Chair in Sustainable Development: Zero Waste Technology for the Palm Oil Industry. We also thank Charles Donald from Michigan State University (MSU) for performing the AFEX pretreatment on OPEFB for this project. NR 32 TC 3 Z9 3 U1 5 U2 9 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0960-8524 EI 1873-2976 J9 BIORESOURCE TECHNOL JI Bioresour. Technol. PD JUL PY 2016 VL 211 BP 200 EP 208 DI 10.1016/j.biortech.2016.02.135 PG 9 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA DK8ON UT WOS:000375186700025 PM 27017130 ER PT J AU Perez-Pimienta, JA Flores-Gomez, CA Ruiz, HA Sathitsuksanoh, N Balan, V Sousa, LD Dale, BE Singh, S Simmons, BA AF Perez-Pimienta, Jose A. Flores-Gomez, Carlos A. Ruiz, Hector A. Sathitsuksanoh, Noppadon Balan, Venkatesh Sousa, Leonardo da Costa Dale, Bruce E. Singh, Seema Simmons, Blake A. TI Evaluation of agave bagasse recalcitrance using AFEX (TM), autohydrolysis, and ionic liquid pretreatments SO BIORESOURCE TECHNOLOGY LA English DT Article DE Agave bagasse; Comparison; Biomass pretreatment; Autohydrolysis; AFEX; Ionic liquid; Characterization ID ENZYMATIC-HYDROLYSIS; DILUTE-ACID; CORN STOVER; BIOMASS; SWITCHGRASS; LIGNIN; SACCHARIFICATION; BIOETHANOL; ETHANOL; IMPACT AB A comparative analysis of the response of agave bagasse (AGB) to pretreatment by ammonia fiber expansion (AFEX (TM)), autohydrolysis (AH) and ionic liquid (IL) was performed using 2D nuclear magnetic resonance (NMR) spectroscopy, wet chemistry, enzymatic saccharification and mass balances. It has been found that AFEX pretreatment preserved all carbohydrates in the biomass, whereas AH removed 62.4% of xylan and IL extracted 25% of lignin into wash streams. Syringyl and guaiacyl lignin ratio of untreated AGB was 4.3, whereas for the pretreated biomass the ratios were 4.2, 5.0 and 4.7 for AFEX, AH and IL, respectively. Using NMR spectra, the intensity of beta-aryl ether units in aliphatic, anomeric, and aromatic regions decreased in all three pretreated samples when compared to untreated biomass. Yields of glucose plus xylose in the major hydrolysate stream were 42.5, 39.7 and 26.9 kg per 100 kg of untreated AGB for AFEX, IL and AH, respectively. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Perez-Pimienta, Jose A.] Univ Autonoma Nayarit, Dept Chem Engn, Tepic, Mexico. [Flores-Gomez, Carlos A.; Balan, Venkatesh; Sousa, Leonardo da Costa; Dale, Bruce E.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. [Ruiz, Hector A.] Autonomous Univ Coahuila, Sch Chem, Food Res Dept, Biorefinery Grp, Saltillo, Coahuila, Mexico. [Sathitsuksanoh, Noppadon] Univ Louisville, Dept Chem Engn, Louisville, KY 40292 USA. [Sathitsuksanoh, Noppadon] Univ Louisville, Conn Ctr Renewable Energy Res, Louisville, KY 40292 USA. [Sathitsuksanoh, Noppadon; Singh, Seema; Simmons, Blake A.] Lawrence Berkeley Natl Lab, Joint BioEnergy Inst, Phys Biosci Div, Emeryville, CA USA. [Singh, Seema; Simmons, Blake A.] Sandia Natl Labs, Biol & Engn Sci Ctr, Livermore, CA USA. RP Perez-Pimienta, JA (reprint author), Univ Autonoma Nayarit, Dept Chem Engn, Tepic, Mexico. EM japerez@uan.edu.mx OI Perez-Pimienta, Jose A./0000-0002-1370-8716 FU Office of Biological end Environmental research in the DOE Office of Science through the Joint BioEnergy Institute [DE-AC02-05CH11231]; National Science Foundation [1355438]; Universidad Autonoma de Nayarit (Autonomous University of Nayarit); PROMEP project [103.5/13/6595]; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DEFC02-07ER64494]; AgBioresearch at Michigan State University; USDA NIFA program; CONACYT Mexico [65774] FX We gratefully acknowledge support for this research by the Office of Biological end Environmental research in the DOE Office of Science through the Joint BioEnergy Institute (JBEI Grant DE-AC02-05CH11231), National Science Foundation under Cooperative Agreement No. 1355438, internal funding from Universidad Autonoma de Nayarit (Autonomous University of Nayarit) and PROMEP project/103.5/13/6595 funded by the Secretary of Public Education of Mexico. We thank the Great Lakes Bioenergy Research Center (http://www.greatlakes-bioenergy.org/) supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, through Cooperative Agreement DEFC02-07ER64494 between the Board of Regents of the University of Wisconsin System and the U.S. Department of Energy. Coauthor Dale also thanks AgBioresearch at Michigan State University and the USDA NIFA program for supporting his work. We thank Tequila Corralejo Company for provide us the bagasse. Coauthor Flores-Gomez also thank CONACYT Mexico for the support this work through mixed scholarship 65774. This study made use of the 600 MHz Bruker instrument at the Central California 900 MHz NMR Facility at University of California at Berkeley. AFEXTM is a trademark of MBI International. NR 34 TC 5 Z9 5 U1 10 U2 44 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0960-8524 EI 1873-2976 J9 BIORESOURCE TECHNOL JI Bioresour. Technol. PD JUL PY 2016 VL 211 BP 216 EP 223 DI 10.1016/j.biortech.2016.03.103 PG 8 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA DK8ON UT WOS:000375186700027 PM 27017132 ER PT J AU Lin, HF Biddinger, EJ Mukarakate, C Nimlos, M Liu, HC AF Lin, Hongfei Biddinger, Elizabeth J. Mukarakate, Calvin Nimlos, Mark Liu, Haichao TI Transformations of Biomass and its derivatives to Fuels and Chemicals Preface SO CATALYSIS TODAY LA English DT Editorial Material C1 [Lin, Hongfei] Univ Nevada, Dept Chem & Mat Engn, Reno, NV 89557 USA. [Biddinger, Elizabeth J.] CUNY City Coll, Dept Chem Engn, New York, NY 10031 USA. [Mukarakate, Calvin; Nimlos, Mark] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Liu, Haichao] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. RP Lin, HF (reprint author), Univ Nevada, Dept Chem & Mat Engn, Reno, NV 89557 USA. NR 0 TC 0 Z9 0 U1 12 U2 29 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 1 EP 1 DI 10.1016/j.cattod.2016.04.003 PG 1 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200001 ER PT J AU Ramasamy, KK Gray, M Job, H Smith, C Wang, Y AF Ramasamy, Karthikeyan K. Gray, Michel Job, Heather Smith, Colin Wang, Yong TI Tunable catalytic properties of bi-functional mixed oxides in ethanol conversion to high value compounds SO CATALYSIS TODAY LA English DT Article DE Ethanol; Butanol; Hydrotalcite; Mixed oxides; Guerbet ID CONDENSATION-REACTIONS; SELF-CONDENSATION; METAL-OXIDES; N-BUTANOL; ALCOHOLS; ACETONE; MG; ISOPHORONE; ISOBUTENE; MECHANISM AB A highly versatile ethanol conversion process to selectively generate high value compounds is presented here. By changing the reaction temperature, ethanol can be selectively converted to >C-2 alcohols/oxygenates or phenolic compounds over hydrotalcite derived bi-functional MgO-Al2O3 catalyst via complex cascade mechanism. Reaction temperature plays a role in whether aldol condensation or the acetone formation is the path taken in changing the product composition. This article contains the catalytic activity comparison between the mono-functional and physical mixture counterpart to the hydrotalcite derived mixed oxides and the detailed discussion on the reaction mechanisms. (C) 2016 Published by Elsevier B.V. C1 [Ramasamy, Karthikeyan K.; Gray, Michel; Job, Heather; Smith, Colin; Wang, Yong] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. [Wang, Yong] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. RP Ramasamy, KK; Wang, Y (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. EM karthi@pnnl.gov; yong.wang@pnnl.gov NR 40 TC 2 Z9 2 U1 24 U2 41 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 82 EP 87 DI 10.1016/j.cattod.2015.11.045 PG 6 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200011 ER PT J AU Liu, CJ Sun, JM Brown, HM Marin-Flores, OG Bays, JT Karim, AM Wang, Y AF Liu, Changjun Sun, Junming Brown, Heather M. Marin-Flores, Oscar G. Bays, J. Timothy Karim, Ayman M. Wang, Yong TI Aqueous phase hydrodeoxygenation of polyols over Pd/WO3-ZrO2: Role of Pd-WO3 interaction and hydrodeoxygenation pathway SO CATALYSIS TODAY LA English DT Article DE Aqueous phase hydrodeoxygenation; Biomass; Zirconia; Bifunctional catalyst ID TUNGSTATED ZIRCONIA CATALYSTS; OXIDE CATALYSTS; BIOMASS; ACID; DEHYDRATION; CONVERSION; ADSORPTION; COMPLEXES; CHEMISTRY; ALCOHOLS AB Aqueous phase processing of biomass derived sugar alcohols is one of the promising routes to convert biomass into fuels and chemicals. Bifunctional catalysts are critical in the aqueous phase hydrodeoxygenation of sugar alcohol. Understanding the interaction between metal and acidic metal oxides as well as the hydrodeoxygenation pathways will help develop more efficient bifunctional catalysts. Here, tungstated zirconia supported palladium catalysts were prepared and further characterized using nitrogen sorption, X-ray diffraction, FT-IR analysis of adsorbed pyridine, CO chemisorption and diffuse reflectance UV-vis. Strong interaction between palladium and WO3 in addition to a synergetic effect of the acidic and metallic sites were found to promote the aqueous phase hydrodeoxygenation of ethylene glycol. H-D exchange experiments using C-13{H-1} NMR spectroscopy confirmed that the aqueous phase hydrodeoxygenation follows a dehydration-hydrogenation pathway. The hydrogenation of the dehydration products shifts the dehydration-hydration equilibrium toward the dehydration pathway and leads to highly selective C-O cleavage. (C) 2015 Elsevier B.V. All rights reserved. C1 [Liu, Changjun] Sichuan Univ, Coll Chem Engn, Multi Phase Mass Transfer & React Engn Lab, Chengdu 610065, Peoples R China. [Sun, Junming; Marin-Flores, Oscar G.; Wang, Yong] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. [Brown, Heather M.; Bays, J. Timothy; Wang, Yong] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA. [Karim, Ayman M.] Virginia Polytech Inst & State Univ, Dept Chem Engn, Blacksburg, VA 24061 USA. RP Wang, Y (reprint author), Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA.; Karim, AM (reprint author), Virginia Polytech Inst & State Univ, Dept Chem Engn, Blacksburg, VA 24061 USA. EM amkarim@vt.edu; wang42@wsu.edu RI Sun, Junming/B-3019-2011; Karim, Ayman/G-6176-2012; Liu, Changjun/M-3272-2013 OI Sun, Junming/0000-0002-0071-9635; Karim, Ayman/0000-0001-7449-542X; Liu, Changjun/0000-0003-3735-4112 NR 33 TC 0 Z9 0 U1 17 U2 55 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 103 EP 109 DI 10.1016/j.cattod.2015.10.034 PG 7 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200014 ER PT J AU Davidson, SD Sun, JM Wang, Y AF Davidson, Stephen D. Sun, Junming Wang, Yong TI The effect of ZnO addition on H2O activation over Co/ZrO2 catalysts SO CATALYSIS TODAY LA English DT Article DE Cobalt; Ethanol reforming; ZnO; Water activation; Oxidation state ID SUPPORTED COBALT CATALYSTS; WATER-GAS-SHIFT; HYDROGEN-PRODUCTION; BIO-ETHANOL; ZINC-OXIDE; PHASE-TRANSFORMATION; REACTION-MECHANISM; STEAM; CO; CONVERSION AB The effect of ZnO addition on the dissociation of H2O and subsequent effects on cobalt oxidation state and ethanol reaction pathway were investigated over Co/ZrO2 catalyst during ethanol steam reforming (ESR). Catalyst physical properties were characterized by BET, XRD, and TEM. To characterize the catalysts ability to dissociate H2O, Raman spectroscopy, H2O-TPO, and pulsed H2O oxidation coupled with H-2-TPR were used. It was found that the addition of ZnO to cobalt supported on ZrO2 decreased the activity for H2O dissociation, leading to a lower degree of cobalt oxidation. The decreased H2O dissociation was also found to affect the reaction pathway, evidenced by a shift in liquid product selectivity away from acetone and towards acetaldehyde. (C) 2015 Elsevier B.V. All rights reserved. C1 [Davidson, Stephen D.; Sun, Junming; Wang, Yong] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA. [Wang, Yong] Pacific NW Natl Lab, Inst Integrated Catalysis, Richland, WA 99354 USA. RP Sun, JM; Wang, Y (reprint author), Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA. EM junming.sun@wsu.edu; yong.wang@pnnl.gov RI Sun, Junming/B-3019-2011 OI Sun, Junming/0000-0002-0071-9635 NR 47 TC 0 Z9 0 U1 6 U2 26 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 140 EP 147 DI 10.1016/j.cattod.2015.10.016 PG 8 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200018 ER PT J AU Xing, R Dagle, VL Flake, M Kovarik, L Albrecht, KO Deshmane, C Dagle, RA AF Xing, Rong Dagle, Vanessa Lebarbier Flake, Matthew Kovarik, Libor Albrecht, Karl O. Deshmane, Chinmay Dagle, Robert A. TI Steam reforming of fast pyrolysis-derived aqueous phase oxygenates over Co, Ni, and Rh metals supported on MgAl2O4 SO CATALYSIS TODAY LA English DT Article DE Biomass; Steam reforming; Aqueous phase; Oxygenates; Rhodium Nickel; Cobalt ID ACETIC-ACID; HYDROGEN-PRODUCTION; BIO-OIL; CARBON NANOTUBES; CALCIUM ALUMINATE; IR CATALYSTS; FE-NI; METHANE; BIOMASS; ETHANOL AB In this study we examine the feasibility of steam reforming the mixed oxygenate aqueous fraction derived from fast pyrolysis bio-oils. Catalysts selective towards hydrogen formation and resistant to carbon formation utilizing feeds with relatively low steam-to-carbon (S/C) ratios are desired. Rh (5 wt%), Pt (5 wt%), Ru (5 wt%), Ir (5 wt%), Ni (15 wt%), and Co (15 wt%) metals supported on MgA1204 were evaluated for catalytic performance at 500 C and 1 atm using a complex feed mixture comprising acids, polyols, cycloalkanes, and phenolic compounds. The Rh catalyst was found to be the most active and resistant to carbon formation. The Ni and Co catalysts were found to be more active than the other noble metal catalysts investigated (Pt, Ru, and Ir). However, Ni was found to form significantly more carbon (coke) on the catalyst surface than Co. Evaluating the effect of temperature on stability for the Rh catalyst we found that catalyst stability was best when operated at 500 degrees C as compared to the higher temperatures investigated (700 degrees C, 800 degrees C). When operating at 700 degrees C, significantly more graphitic carbon was observed on the spent catalyst surface. Operating at 800 degrees C resulted in significant carbon deposition, resulting in reactor plugging as a result of thermal decomposition of the reactants. Thus, a concept analogous to the petroleum industries' use of a pre-reformer, operated at approximately 500 degrees C for steam reforming of the heavier naphtha components, followed by a high temperature methane reformer operated in the 600-850 degrees C temperature range, could be applied in the case of steam reforming biomass derived oxygenates. Additional stability evaluations performed over the Rh, Ni, and Co catalysts at 500 degrees C and 1 atm, under similar initial conversions, reveal the Co catalyst to be the most stable and selective towards H-2 production. However, deposition of carbon on the surface was observed. High resolution TEM on the spent catalysts revealed the formation of graphitic carbon on the Rh catalyst, and filamentous carbon formation on both the Ni and Co catalysts, albeit less pronounced on Co. Conversion and selectivity to CH4 over Co remained relatively stable at approximately 80% and 1.2%, respectively. By contrast, the Rh and Ni catalysts CH4 selectivity's were approximately 7-8%. The low selectivity to CH4 and enhanced resistance to coke formation suggests the Co catalyst may be a desirable economic alternative for the steam reforming of biomass-derived oxygenates compared to the more conventional Ni and Rh-type steam reforming catalysts. (C) 2016 Elsevier B.V. All rights reserved. C1 [Xing, Rong; Dagle, Vanessa Lebarbier; Flake, Matthew; Albrecht, Karl O.; Deshmane, Chinmay; Dagle, Robert A.] Pacific NW Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA. [Kovarik, Libor] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Dagle, RA (reprint author), Pacific NW Natl Lab, Inst Integrated Catalysis, Richland, WA 99352 USA. EM robert.dagle@pnnl.gov RI Kovarik, Libor/L-7139-2016 NR 49 TC 4 Z9 4 U1 7 U2 47 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 166 EP 174 DI 10.1016/j.cattod.2015.11.046 PG 9 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200021 ER PT J AU Engtrakul, C Mukarakate, C Starace, AK Magrini, KA Rogers, AK Yung, MM AF Engtrakul, Chaiwat Mukarakate, Calvin Starace, Anne K. Magrini, Kimberly A. Rogers, Allyson K. Yung, Matthew M. TI Effect of ZSM-5 acidity on aromatic product selectivity during upgrading of pine pyrolysis vapors SO CATALYSIS TODAY LA English DT Article DE Biomass; Pyrolysis; Vapor phase upgrading; Acidity; ZSM-5; Zeolite ID CATALYTIC FAST PYROLYSIS; SI/AL RATIO; BIO-OIL; BIOMASS; ZEOLITES; DISTRIBUTIONS; DEACTIVATION; CONVERSION; KINETICS; FUELS AB The impact of catalyst acidity on the selectivity of upgraded biomass pyrolysis products was studied by passing pine pyrolysis vapors over five ZSM-5 catalysts of varying acidity at 500 degrees C. The SiO2-to-Al2O3 ratio (SAR) of the ZSM-5 zeolite was varied from 23 to 280 to control the acidity of the catalyst and the composition of upgraded products. The upgraded product stream was analyzed by GCMS. Additionally, catalysts were characterized using temperature programmed desorption, diffuse-reflectance FTIR spectroscopy, N-2 physisorption, and X-ray diffraction. The results showed that the biomass pyrolysis vapors were highly deoxygenated to form a slate of aromatic hydrocarbons over all of the tested ZSM-5 catalysts. As the overall acidity of the ZSM-5 increased the selectivity toward alkylated (substituted) aromatics (e.g., xylene, dimethyl-naphthalene, and methyl-anthracene) decreased while the selectivity toward unsubstituted aromatics (e.g., benzene, naphthalene, and anthracene) increased. Additionally, the selectivity toward polycyclic aromatic compounds (2-ring and 3-ring) increased as catalyst acidity increased, corresponding to a decrease in acid site spacing. The increased selectivity toward less substituted polycyclic aromatic compounds with increasing acidity is related to the relative rates of cyclization and alkylation reactions within the zeolite structure. As the acid site concentration increases and sites become closer to each other, the formation of additional cyclization products occurs at a greater rate than alkylated products. The ability to adjust product selectivity within 1-, 2-, and 3-ring aromatic families, as well as the degree of substitution, by varying ZSM-5 acidity could have significant benefits in terms creating a slate of upgraded biomass pyrolysis products to meet specific target market demands. Published by Elsevier B.V. C1 [Engtrakul, Chaiwat] Natl Renewable Energy Lab, Chem & Nanosci Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. [Mukarakate, Calvin; Starace, Anne K.; Magrini, Kimberly A.; Rogers, Allyson K.; Yung, Matthew M.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Yung, MM (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. EM Chaiwat.Engtrakul@nrel.gov; Calvin.Mukarakate@nrel.gov; Anne.Starace@nrel.gov; Kim.Magrini@nrel.gov; rogers.allysonk@gmail.com; Mathew.Yung@nrel.gov NR 27 TC 5 Z9 5 U1 20 U2 55 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 EI 1873-4308 J9 CATAL TODAY JI Catal. Today PD JUL 1 PY 2016 VL 269 BP 175 EP 181 DI 10.1016/j.cattod.2015.10.032 PG 7 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA DK6LU UT WOS:000375036200022 ER PT J AU Kumbhani, SR Cline, TS Killian, MC Clark, J Keeton, W Hansen, LD Shirts, RB Robichaud, DJ Hansen, JC AF Kumbhani, Sambhav R. Cline, Taylor S. Killian, Marie C. Clark, Jared Keeton, William Hansen, Lee D. Shirts, Randall B. Robichaud, David J. Hansen, Jaron C. TI Response to the Comment on Paper "Water vapor Enhancement of Rates of Peroxy Radical Reactions", Int. J. Chem. Kinetics, 47, 395, 2015 SO INTERNATIONAL JOURNAL OF CHEMICAL KINETICS LA English DT Editorial Material C1 [Kumbhani, Sambhav R.; Cline, Taylor S.; Killian, Marie C.; Clark, Jared; Keeton, William; Hansen, Lee D.; Shirts, Randall B.; Hansen, Jaron C.] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. [Robichaud, David J.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Hansen, JC (reprint author), Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. EM jhansen@chem.byu.edu NR 7 TC 0 Z9 0 U1 2 U2 9 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0538-8066 EI 1097-4601 J9 INT J CHEM KINET JI Int. J. Chem. Kinet. PD JUL PY 2016 VL 48 IS 7 BP 399 EP 401 DI 10.1002/kin.21001 PG 3 WC Chemistry, Physical SC Chemistry GA DK7DI UT WOS:000375084700006 ER PT J AU Kumbhani, SR Cline, TS Killian, MC Clark, JM Keeton, WJ Hansen, LD Shirts, RB Robichaud, DJ Hansen, JC AF Kumbhani, Sambhav R. Cline, Taylor S. Killian, Marie C. Clark, Jared M. Keeton, William J. Hansen, Lee D. Shirts, Randall B. Robichaud, David J. Hansen, Jaron C. TI Water Vapor Enhancement of Rates of Peroxy Radical Reactions (vol 47, pg 395, 2015) SO INTERNATIONAL JOURNAL OF CHEMICAL KINETICS LA English DT Correction C1 [Kumbhani, Sambhav R.; Cline, Taylor S.; Killian, Marie C.; Clark, Jared M.; Keeton, William J.; Hansen, Lee D.; Shirts, Randall B.; Hansen, Jaron C.] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. [Robichaud, David J.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Hansen, JC (reprint author), Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. EM jhansen@chem.byu.edu NR 1 TC 0 Z9 0 U1 2 U2 6 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0538-8066 EI 1097-4601 J9 INT J CHEM KINET JI Int. J. Chem. Kinet. PD JUL PY 2016 VL 48 IS 7 BP 402 EP 403 DI 10.1002/kin.21002 PG 2 WC Chemistry, Physical SC Chemistry GA DK7DI UT WOS:000375084700007 ER PT J AU Li, ZZ Min, T Kang, QJ He, YL Tao, WQ AF Li, Zhong-Zhen Min, Ting Kang, Qinjun He, Ya-Ling Tao, Wen-Quan TI Investigation of methane adsorption and its effect on gas transport in shale matrix through microscale and mesoscale simulations SO INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER LA English DT Article DE Shale matrix; Adsorption; Slippage; Molecular dynamics; Lattice Boltzmann method; Permeability ID LATTICE BOLTZMANN MODEL; APPARENT PERMEABILITY; ORGANIC-MATTER; FLOW; PORES; KEROGEN; MUDROCKS; SLIP AB Methane adsorption and its effect on fluid flow in shale matrix are investigated through multi-scale simulation scheme by using molecular dynamics (MD) and lattice Boltzmann (LB) methods. Equilibrium MD simulations are conducted to study methane adsorption on the organic and inorganic walls of nano pores in shale matrix with different pore sizes and pressures. Density and pressure distributions within the adsorbed layer and the free gas region are discussed. The illumination of the MD results on larger scale LB simulations is presented. Pressure-dependent thickness of adsorbed layer should be adopted and the transport of adsorbed layer should be properly considered in LB simulations. LB simulations, which are based on a generalized Navier Stokes equation for flow through low-permeability porous media with slippage, are conducted by taking into consideration the effects of adsorbed layer. It is found that competitive effects of slippage and adsorbed layer exist on the permeability of shale matrix, leading to different changing trends of the apparent permeability. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Li, Zhong-Zhen; He, Ya-Ling; Tao, Wen-Quan] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Key Lab Thermo Fluid Sci & Engn MOE, Xian 710049, Shaanxi, Peoples R China. [Min, Ting] Xi An Jiao Tong Univ, State Key Lab Mech Behav Materials, Xian 710049, Shaanxi, Peoples R China. [Kang, Qinjun] Los Alamos Natl Lab, Earth & Environm Sci Div, POB 1663, Los Alamos, NM 87545 USA. RP Tao, WQ (reprint author), Xi An Jiao Tong Univ, Sch Energy & Power Engn, Key Lab Thermo Fluid Sci & Engn MOE, Xian 710049, Shaanxi, Peoples R China. EM wqtao@mail.xjtu.edu.cn FU National Nature Science Foundation of China [51136004]; 111 Project [B16038]; LANL's LDRD Program; Institutional Computing Program FX The authors thank the support of National Nature Science Foundation of China (51136004). 111 Project (B16038). Qinjun Kang acknowledges the support of LANL's LDRD Program and Institutional Computing Program. NR 45 TC 4 Z9 4 U1 10 U2 38 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0017-9310 EI 1879-2189 J9 INT J HEAT MASS TRAN JI Int. J. Heat Mass Transf. PD JUL PY 2016 VL 98 BP 675 EP 686 DI 10.1016/j.ijheatmasstransfer.2016.03.039 PG 12 WC Thermodynamics; Engineering, Mechanical; Mechanics SC Thermodynamics; Engineering; Mechanics GA DL0ZF UT WOS:000375360600064 ER PT J AU Topolska, J Manecki, M Bajda, T Borkiewicz, O Budzewski, P AF Topolska, Justyna Manecki, Maciej Bajda, Tomasz Borkiewicz, Olaf Budzewski, Przemyslaw TI Solubility of pyromorphite Pb-5(PO4)(3)Cl at 5-65 degrees C and its experimentally determined thermodynamic parameters SO JOURNAL OF CHEMICAL THERMODYNAMICS LA English DT Article DE Pyromorphite; Lead apatite; Solubility product; Dissolution experiment; Thermodynamics ID LEAD IMMOBILIZATION; HYDROXYAPATITE; DISSOLUTION; STABILITY; APATITE; PB; CHLOROPYROMORPHITE AB The solubility of synthetic pyromorphite Pb-5(PO4)(3)Cl was determined in a series of dissolution experiments conducted at 5-65 degrees C and at pH = 2.0. The equilibrium was established within 4 months. The dissolution of pyromorphite was congruent at all the temperatures, and the measured solubility product logK(sp, 298) for the dissolution reaction: Pb-5(PO4)(3)Cl double left right arrow 5Pb(2+) + 3PO(4)(3-) + Cl- was determined to be -79.6 +/- 0.15. The equilibrium ion activity product of pyromorphite increased with temperature, indicating a positive enthalpy of the dissolution reaction in the temperature range from 5 to 65 degrees C. The temperature dependence of the logKsp was nonlinear: logKsp = A - B/T + D log(T), where A = 478.77 +/- 136.62, B = 29,378 +/- 6215, and D = -185.81 +/- 46.77. This allowed for calculation of Delta G degrees(r) = 454.0 +/- 1.7 kJ . mol(-1), Delta H degrees(r) = 101.8 +/- 6.0 J . mol(-1) . K-1, Delta C degrees(p, r) = -1545 +/- 388.9 J . mol(-1) . K-1, and Delta S degrees(r) = -1181 +/- 382 J . mol(-1) . K-1 of the dissolution reaction. Using these values and the published standard state quantities for constituent ions, the values of Delta G degrees(f) = -3764.3 +/- 3.5 kJ . mol(-1), Delta H degrees(f) = -4108.4 +/- 7.9 J . mol(-1) . K-1, S degrees f = 622 +/- 382 J . mol(-1) . K-1, and C degrees pf = 402 +/- 398 J . mol(-1) . K-1 were calculated for synthetic pyromorphite Pb-5(PO4)(3)Cl. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Topolska, Justyna; Manecki, Maciej; Bajda, Tomasz] AGH Univ Sci & Technol, Fac Geol Geophys & Environm Protect, Dept Mineral Petrog & Geochem, Al Mickiewicza 30, PL-30059 Krakow, Poland. [Borkiewicz, Olaf] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, 9700 South Cass Ave,Bldg 433, Argonne, IL 60439 USA. [Budzewski, Przemyslaw] Predict Solut, Ul Raclawicka 58, PL-30017 Krakow, Poland. RP Topolska, J (reprint author), AGH Univ Sci & Technol, Fac Geol Geophys & Environm Protect, Dept Mineral Petrog & Geochem, Al Mickiewicza 30, PL-30059 Krakow, Poland. EM jm.topolska@gmail.com RI Bajda, Tomasz/B-2323-2013 FU Polish NCN Grant [2011/01/M/ST10/06999]; AGH University of Science and Technology [11.11.140.319] FX This work was funded by Polish NCN Grant No. 2011/01/M/ST10/06999 and AGH University of Science and Technology statutory No. 11.11.140.319. NR 29 TC 1 Z9 1 U1 9 U2 22 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0021-9614 EI 1096-3626 J9 J CHEM THERMODYN JI J. Chem. Thermodyn. PD JUL PY 2016 VL 98 BP 282 EP 287 DI 10.1016/j.jct.2016.03.031 PG 6 WC Thermodynamics; Chemistry, Physical SC Thermodynamics; Chemistry GA DK8UJ UT WOS:000375203500034 ER PT J AU Hoss, DJ Knepper, R Hotchkiss, PJ Tappan, AS Boudouris, BW Beaudoin, SP AF Hoss, Darby J. Knepper, Robert Hotchkiss, Peter J. Tappan, Alexander S. Boudouris, Bryan W. Beaudoin, Stephen P. TI An evaluation of complementary approaches to elucidate fundamental interfacial phenomena driving adhesion of energetic materials SO JOURNAL OF COLLOID AND INTERFACE SCIENCE LA English DT Article DE Contact angle; Interfacial energy; Surface energy; Wettability; Hamaker constant; Energetic materials ID SURFACE FREE-ENERGY; CONTACT-ANGLE MEASUREMENTS; DROP SIZE; ATTRACTIVE FORCES; LINE TENSION; SOLIDS; FILMS; MICROSTRUCTURE; EXPLOSIVES; DEPENDENCE AB Cohesive Hamaker constants of solid materials are measured via optical and dielectric properties (i.e., Lifshitz theory), inverse gas chromatography (IGC), and contact angle measurements. To date, however, a comparison across these measurement techniques for common energetic materials has not been reported. This has been due to the inability of the community to produce samples of energetic materials that are readily compatible with contact angle measurements. Here we overcome this limitation by using physical vapor deposition to produce thin films of five common energetic materials, and the contact angle measurement approach is applied to estimate the cohesive Hamaker constants and surface energy components of the materials. The cohesive Hamaker constants range from 85 zJ to 135 zJ across the different films. When these Hamaker constants are compared to prior work using Lifshitz theory and nonpolar probe IGC, the relative magnitudes can be ordered as follows: contact angle > Lifshitz > IGC. Furthermore, the dispersive surface energy components estimated here are in good agreement with those estimated by IGC. Due to these results, researchers and technologists will now have access to a comprehensive database of adhesion constants which describe the behavior of these energetic materials over a range of settings. (C) 2016 Elsevier Inc. All rights reserved. C1 [Hoss, Darby J.; Boudouris, Bryan W.; Beaudoin, Stephen P.] Purdue Univ, Sch Chem Engn, 480 Stadhim Mall Dr, W Lafayette, IN 47907 USA. [Knepper, Robert; Hotchkiss, Peter J.; Tappan, Alexander S.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Beaudoin, SP (reprint author), Purdue Univ, Sch Chem Engn, 480 Stadhim Mall Dr, W Lafayette, IN 47907 USA. EM sbeaudoi@purdue.edu FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Joint Department of Defense/Department of Energy Munitions Technology Development Program; U.S. Department of Homeland Security, Science and Technology Directorate, Office of University Programs [2013-ST-061-ED0001] FX We thank Michael Marquez (deposition) and M. Barry Ritchey (SEM) for their assistance with the noted experimental efforts. 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 work of the Sandia team was supported in part by the Joint Department of Defense/Department of Energy Munitions Technology Development Program. The work of D.J.H., B.W.B., and S.P.B. at Purdue University was supported by the U.S. Department of Homeland Security, Science and Technology Directorate, Office of University Programs, under Grant Award 2013-ST-061-ED0001. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Department of Homeland Security. We gratefully acknowledge this support. NR 41 TC 0 Z9 0 U1 6 U2 9 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9797 EI 1095-7103 J9 J COLLOID INTERF SCI JI J. Colloid Interface Sci. PD JUL 1 PY 2016 VL 473 BP 28 EP 33 DI 10.1016/j.jcis.2016.03.024 PG 6 WC Chemistry, Physical SC Chemistry GA DK8HQ UT WOS:000375168200004 PM 27042822 ER PT J AU O'Brien, CJ Foiles, SM AF O'Brien, C. J. Foiles, S. M. TI Exploration of the mechanisms of temperature-dependent grain boundary mobility: search for the common origin of ultrafast grain boundary motion SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID CENTERED-CUBIC METALS; MOLECULAR-DYNAMICS; ROUGHENING TRANSITION; INSITU OBSERVATIONS; MIGRATION; ZINC; DISLOCATIONS; DEFORMATION; SIMULATIONS; KINETICS AB The temperature dependence of grain boundary mobility is complex, varied, and rarely fits ideal Arrhenius behavior. This work presents a series of case studies of planar grain boundaries in a model FCC system that were previously demonstrated to exhibit a variety of temperature-dependent mobility behaviors. It is demonstrated that characterization of the mobility versus temperature plots is not sufficient to predict the atomic motion mechanism of the grain boundaries. Herein, the temperature-dependent motion and atomistic motion mechanisms of planar grain boundaries are driven by a synthetic, orientation-dependent, driving force. The systems studied include CSL boundaries with values of 5, 7, and 15, including both symmetric and asymmetric boundaries. These boundaries represent a range of temperature-dependent trends including thermally activated, antithermal, and roughening behaviors. Examining the atomic-level motion mechanisms of the thermally activated boundaries reveals that each involves a complex shuffle, and at least one atom that changes the plane it resides on. The motion mechanism of the antithermal boundary is qualitatively different and involves an in-plane coordinated shuffle that rotates atoms about a fixed atom lying on a point in the coincident site lattice. This provides a mechanistic reason for the observed high mobility, even at low temperatures, which is due to the low activation energy needed for such motion. However, it will be demonstrated that this mechanism is not universal, or even common, to other boundaries exhibiting non-thermally activated motion. This work concludes that no single atomic motion mechanism is sufficient to explain the existence of non-thermally activated boundary motion. C1 [O'Brien, C. J.; Foiles, S. M.] Sandia Natl Labs, POB 5800,MS 1411, Albuquerque, NM 87185 USA. RP O'Brien, CJ (reprint author), Sandia Natl Labs, POB 5800,MS 1411, Albuquerque, NM 87185 USA. EM cjobrie@sandia.gov OI Foiles, Stephen/0000-0002-1907-454X; O'Brien, Christopher/0000-0001-7210-9257 FU U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division [15013170]; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors would like to thank D.C. Bufford, T.A. Furnish, F. Abdeljawad, B.L. Boyce, and K. Hattar for their time in reviewing and providing insightful comments on the manuscript making it clearer and more applicable to a wider audience. The work was fully supported by the U.S. Department of Energy, Office of Science, Materials Sciences and Engineering Division, under FWP Award #15013170. Work was performed at Sandia National Laboratories, 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 55 TC 1 Z9 1 U1 5 U2 18 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 EI 1573-4803 J9 J MATER SCI JI J. Mater. Sci. PD JUL PY 2016 VL 51 IS 14 BP 6607 EP 6623 DI 10.1007/s10853-016-9944-1 PG 17 WC Materials Science, Multidisciplinary SC Materials Science GA DL0IX UT WOS:000375317100007 ER PT J AU Muzzillo, CP Mansfield, LM Ramanathan, K Anderson, TJ AF Muzzillo, Christopher P. Mansfield, Lorelle M. Ramanathan, Kannan Anderson, Timothy J. TI Properties of Cu1-x K (x) InSe2 alloys SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID FILM SOLAR-CELLS; THIN-FILMS; POSTDEPOSITION TREATMENT; BAND-GAP; ELECTRONIC-PROPERTIES; METAL CHALCOGENIDES; POTASSIUM FLUORIDE; M LI; EFFICIENCY; SELENIDES AB Adding potassium to Cu(In,Ga)Se-2 absorbers has been shown to enhance photovoltaic power conversion efficiency. To illuminate possible mechanisms for this enhancement and limits to beneficial K incorporation, the properties of Cu1-x K (x) InSe2 (CKIS) thin-film alloys have been studied. Films with K/(K + Cu), or x, from 0 to 1 were grown by co-evaporation, and probed by XRF, EPMA, SEM, XRD, UV-Visible spectroscopy, current-voltage, and TRPL measurements. Composition from in situ quartz crystal and EIES monitoring was well correlated with final film composition. Crystal lattice parameters showed linear dependence on x, indicating complete K incorporation and coherent structural character at all compositions in the < 100 > and < 010 > lattice directions, despite the different symmetries of CuInSe2 and KInSe2. The band gap energy showed pronounced bowing with x composition, in excellent agreement with experimental reports and semiconductor theory. Films of Mo/CKIS/Ni were non-ohmic, and increasing x from 0 to 0.58 decreased the apparent CKIS resistivity. Further evidence of decreased CKIS resistivity was observed with photoluminescence response, which increased by about half a decade for x > 0, and indicates increased majority carrier concentration. Minority carrier lifetimes increased by about an order of magnitude for films grown at x = 0.07 and 0.14, relative to CuInSe2 and x a parts per thousand yen 0.30. This is the first report of a Cu-K-In-Se film with > 1 at.% K, and the observed property changes at increased x (wider band gap; lower resistivity; increased lifetime) comprise valuable photovoltaic performance-enhancement strategies, suggesting that CKIS alloys have a role to play in future engineering advances. C1 [Muzzillo, Christopher P.; Anderson, Timothy J.] Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA. [Muzzillo, Christopher P.; Mansfield, Lorelle M.; Ramanathan, Kannan] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Anderson, TJ (reprint author), Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA. EM tim@ufl.edu FU Department of Energy under FPACE [DE-FOA-0000492] FX The authors would like to thank Marc Heinemann for key discussion, Bobby To for SEM, Stephen Glynn and Carolyn Beall for assistance with experiments, and Clay DeHart and Anna Duda for contact evaporation. The authors acknowledge the financial assistance of the Department of Energy under FPACE contract DE-FOA-0000492. NR 50 TC 2 Z9 2 U1 6 U2 18 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 EI 1573-4803 J9 J MATER SCI JI J. Mater. Sci. PD JUL PY 2016 VL 51 IS 14 BP 6812 EP 6823 DI 10.1007/s10853-016-9969-5 PG 12 WC Materials Science, Multidisciplinary SC Materials Science GA DL0IX UT WOS:000375317100023 ER PT J AU Wang, CH Yang, CD Liu, M Li, X Hu, PF Russell, AM Cao, GH AF Wang, C. H. Yang, C. D. Liu, M. Li, X. Hu, P. F. Russell, A. M. Cao, G. H. TI Martensitic microstructures and mechanical properties of as-quenched metastable beta-type Ti-Mo alloys SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID ELASTIC-DEFORMATION-BEHAVIOR; OMEGA PHASE-TRANSFORMATION; NB-ZR-TA; TITANIUM-ALLOYS; STRENGTHENING MECHANISMS; TENSILE PROPERTIES; FE; NUCLEATION; STABILITY; MODES AB Microstructures and tensile properties were investigated in metastable beta-type Ti-10Mo, Ti-15Mo, and Ti-20Mo alloys after solution treatment. In addition to beta phase, different martensitic structures with various sizes and morphologies were found in these alloys. In the Ti-10Mo alloy, acicular alpha aEuro(3) plates were uniformly distributed in the beta matrix. Transmission electron microscopy (TEM) revealed {111} alpha aEuro(3)-type twins had formed in alpha aEuro(3) plates, and the orientation relationship between the beta and alpha aEuro(3) is close to (110) beta//(001) alpha aEuro(3), () beta//(110) alpha aEuro(3), and [] beta//[] alpha aEuro(3). In the Ti-15Mo alloy, nanoparticles of athermal omega phase containing {112} beta-type twins were observed in the beta matrix. Smaller omega particles were found in the Ti-20Mo alloy than in the Ti-15Mo alloy. When tensile tested, the Ti-10Mo and Ti-15Mo alloys exhibited large plastic strains of 24 and 29 %, respectively, with ultimate tensile stresses of 756 and 739 MPa. The Ti-20Mo alloy displayed a higher ultimate tensile stress of 792 MPa but much smaller plastic strain (2 %). Although beta phase dominates in all the metastable beta-type Ti-Mo alloys, the nanostructured martensites also play an important role in the mechanical properties of the alloys. C1 [Wang, C. H.; Yang, C. D.; Liu, M.; Li, X.; Cao, G. H.] Shanghai Univ, State Key Lab Adv Special Steel, 149 Yanchang Rd, Shanghai 200072, Peoples R China. [Wang, C. H.; Yang, C. D.; Liu, M.; Li, X.; Cao, G. H.] Shanghai Univ, Shanghai Key Lab Adv Ferromet, 149 Yanchang Rd, Shanghai 200072, Peoples R China. [Wang, C. H.; Yang, C. D.; Liu, M.; Li, X.; Cao, G. H.] Shanghai Univ, Sch Mat Sci & Engn, 149 Yanchang Rd, Shanghai 200072, Peoples R China. [Hu, P. F.] Shanghai Univ, Lab Microstruct, 99 Shangda Rd, Shanghai 200444, Peoples R China. [Russell, A. M.] Iowa State Univ, Dept Mat Sci & Engn, Div Mat Sci & Engn, USDOE,Ames Lab, Ames, IA 50011 USA. RP Cao, GH (reprint author), Shanghai Univ, State Key Lab Adv Special Steel, 149 Yanchang Rd, Shanghai 200072, Peoples R China.; Cao, GH (reprint author), Shanghai Univ, Shanghai Key Lab Adv Ferromet, 149 Yanchang Rd, Shanghai 200072, Peoples R China.; Cao, GH (reprint author), Shanghai Univ, Sch Mat Sci & Engn, 149 Yanchang Rd, Shanghai 200072, Peoples R China. EM ghcao@shu.edu.cn FU National Natural Science Foundation of China (NSFC) [51271107]; Instrumental Analysis and Research Center of Shanghai University FX This work was supported by the National Natural Science Foundation of China (NSFC) under Grant 51271107. Support by the Instrumental Analysis and Research Center of Shanghai University are gratefully acknowledged. NR 47 TC 1 Z9 1 U1 17 U2 37 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 EI 1573-4803 J9 J MATER SCI JI J. Mater. Sci. PD JUL PY 2016 VL 51 IS 14 BP 6886 EP 6896 DI 10.1007/s10853-016-9976-6 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA DL0IX UT WOS:000375317100029 ER PT J AU Bruillard, P Ng, SH Rowell, EC Wang, ZH AF Bruillard, Paul Ng, Siu-Hung Rowell, Eric C. Wang, Zhenghan TI RANK-FINITENESS FOR MODULAR CATEGORIES SO JOURNAL OF THE AMERICAN MATHEMATICAL SOCIETY LA English DT Article DE Modular categories; Cauchy theorem; Frobenius-Schur indicator ID FROBENIUS-SCHUR INDICATORS; CONFORMAL FIELD-THEORY; QUASI-HOPF ALGEBRAS; FUSION CATEGORIES; TENSOR CATEGORIES; CENTRAL INVARIANTS; CLASSIFICATION; 3-MANIFOLDS; SYMMETRY; NUMBER C1 [Bruillard, Paul; Rowell, Eric C.] Texas A&M Univ, Dept Math, College Stn, TX 77843 USA. [Bruillard, Paul] Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA. [Ng, Siu-Hung] Louisiana State Univ, Dept Math, Baton Rouge, LA 70803 USA. [Wang, Zhenghan] Univ Calif Santa Barbara, Microsoft Res Stn Q, Santa Barbara, CA 93106 USA. [Wang, Zhenghan] Univ Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA. RP Bruillard, P; Rowell, EC (reprint author), Texas A&M Univ, Dept Math, College Stn, TX 77843 USA.; Bruillard, P (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA.; Ng, SH (reprint author), Louisiana State Univ, Dept Math, Baton Rouge, LA 70803 USA.; Wang, ZH (reprint author), Univ Calif Santa Barbara, Microsoft Res Stn Q, Santa Barbara, CA 93106 USA.; Wang, ZH (reprint author), Univ Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA. EM pjb2357@gmail.com; rng@math.lsu.edu; rowell@math.tamu.edu; zhenghwa@microsoft.com OI Rowell, Eric/0000-0002-2338-9819 FU NSF [DMS1108725, DMS1001566, DMS1303253, DMS1501179] FX The first, third, and fourth authors were partially supported by NSF grant DMS1108725.; The second author was partially supported by NSF grants DMS1001566, DMS1303253, and DMS1501179. NR 60 TC 5 Z9 5 U1 0 U2 1 PU AMER MATHEMATICAL SOC PI PROVIDENCE PA 201 CHARLES ST, PROVIDENCE, RI 02940-2213 USA SN 0894-0347 EI 1088-6834 J9 J AM MATH SOC JI J. Am. Math. Soc. PD JUL PY 2016 VL 29 IS 3 BP 857 EP 881 DI 10.1090/jams/842 PG 25 WC Mathematics SC Mathematics GA DK3CM UT WOS:000374793500006 ER PT J AU Wang, J Sandoval, K Ding, Y Stoeckel, D Minard-Smith, A Andersen, G Dubinsky, EA Atlas, R Gardinali, P AF Wang, Jian Sandoval, Kathia Ding, Yan Stoeckel, Donald Minard-Smith, Angela Andersen, Gary Dubinsky, Eric A. Atlas, Ronald Gardinali, Piero TI Biodegradation of dispersed Macondo crude oil by indigenous Gulf of Mexico microbial communities SO SCIENCE OF THE TOTAL ENVIRONMENT LA English DT Article DE Macondo oil; Hydrocarbon biodegradation; Oil droplets; Gulf of Mexico microorganisms ID PETROLEUM-HYDROCARBONS; DEGRADING BACTERIA; LOW-TEMPERATURE; SEAWATER; SPILL; SEA; DROPLETS AB Because of the extreme conditions of the Deepwater Horizon (DWH) release (turbulent flow at 1500 m depth and 5 degrees C water temperature) and the sub-surface application of dispersant, small but neutrally buoyant oil droplets <70 mu m were formed, remained in the water column and were subjected to in-situ biodegradation processes. In order to investigate the biodegradation of Macondo oil components during the release, we designed and performed an experiment to evaluate the interactions of the indigenous microbial communities present in the deep waters of the Gulf of Mexico (GOM) with oil droplets of two representative sizes (10 mu m and 30 mu m median volume diameter) created with Macondo source oil in the presence of Corexit 9500 using natural seawater collected at the depth of 1100-1300 m in the vicinity of the DWH wellhead. The evolution of the oil was followed in the dark and at 5 degrees C for 64 days by collecting sacrificial water samples at fixed intervals and analyzing them for a wide range of chemical and biological parameters including volatile components, saturated and aromatic hydrocarbons, dispersant markers, dissolved oxygen, nutrients, microbial cell counts and microbial population dynamics. A one phase exponential decay from a plateau model was used to calculate degradation rates and lag times for more than 150 individual oil components. Calculations were normalized to a conserved petroleum biomarker (30 alpha beta-hopane). Half-lives ranged from about 3 days for easily degradable compounds to about 60 days for higher molecular weight aromatics. Rapid degradation was observed for BTEX, 2-3 ring PAHs, and n-alkanes below n-C23. The results in this experimental study showed good agreement with the n-alkane (n-C13 to n-C26) half-lives (0.6-9.5 days) previously reported for the Deepwater Horizon plume samples and other laboratory studies with chemically dispersed Macondo oil conducted at low temperatures (<8 degrees C). The responses of the microbial populations also were consistent with what was reported during the actual oil release, e.g. Colwellia, Cycloclasticus and Oceanospirillales (including the specific DWH Oceanospirillales) were present and increased in numbers indicating that they were degrading components of the oil. The consistency of the field and laboratory data indicate that these results could be used, in combination with other field and model data to characterize the dissipation of Macondo oil in the deepwater environment as part of the risk assessment estimations. (C) 2016 Elsevier B.V. All rights reserved. C1 [Wang, Jian; Sandoval, Kathia; Ding, Yan; Gardinali, Piero] Florida Int Univ, Southeaest Environm Res Ctr, North Miami Beach, FL 33181 USA. [Gardinali, Piero] Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA. [Stoeckel, Donald; Minard-Smith, Angela] Battelle 505 King Ave, Columbus, OH 43201 USA. [Andersen, Gary; Dubinsky, Eric A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Atlas, Ronald] Univ Louisville, Dept Biol, Louisville, KY 40292 USA. RP Gardinali, P (reprint author), Florida Int Univ, Dept Chem & Biochem, Biscayne Bay Campus 3000 NE 151st St Marine Sci, North Miami, FL 33181 USA.; Gardinali, P (reprint author), Florida Int Univ, Southeast Environm Res Ctr, Biscayne Bay Campus 3000 NE 151st St Marine Sci, North Miami, FL 33181 USA. EM gardinal@fiu.edu RI Dubinsky, Eric/D-3787-2015; Andersen, Gary/G-2792-2015; OI Dubinsky, Eric/0000-0002-9420-6661; Andersen, Gary/0000-0002-1618-9827; Stoeckel, Don/0000-0003-3772-171X FU BP Exploration & Production Inc.; BP Gulf Coast Restoration Organization through FIU project [800001556] FX This work was supported by BP Exploration & Production Inc. and the BP Gulf Coast Restoration Organization through FIU project 800001556. This is contribution number 782 from the Southeast Environmental Research Center (SERC) at Florida International University. NR 30 TC 2 Z9 2 U1 16 U2 68 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0048-9697 EI 1879-1026 J9 SCI TOTAL ENVIRON JI Sci. Total Environ. PD JUL 1 PY 2016 VL 557 BP 453 EP 468 DI 10.1016/j.scitotenv.2016.03.015 PG 16 WC Environmental Sciences SC Environmental Sciences & Ecology GA DK7VZ UT WOS:000375136200048 PM 27017076 ER PT J AU Baalousha, M Yang, Y Vance, ME Colman, BP McNeal, S Xu, J Blaszczak, J Steele, M Bernhardt, E Hochella, MF AF Baalousha, Mohammed Yang, Yi Vance, Marina E. Colman, Benjamin P. McNeal, Samantha Xu, Jie Blaszczak, Joanna Steele, Meredith Bernhardt, Emily Hochella, Michael F., Jr. TI Outdoor urban nanomaterials: The emergence of a new, integrated, and critical field of study SO SCIENCE OF THE TOTAL ENVIRONMENT LA English DT Review DE Urban environment; Engineered nanomaterials; Incidental nanomaterials; Atmosphere; Storm water; Surface water ID PLATINUM-GROUP ELEMENTS; WASTE-WATER TREATMENT; COATED SILVER NANOPARTICLES; AIRBORNE PARTICULATE MATTER; SOUTHEASTERN UNITED-STATES; LONG-RANGE TRANSPORT; GREEN RUST; ENGINEERED NANOMATERIALS; ROAD DUST; DIOXIDE NANOPARTICLES AB Engineered nanomaterials (ENMs) are currently widely incorporated in the outdoor urban environmental fabric and numerous new applications and products containing ENMs are expected in the future. As has been shown repeatedly, products containing ENMs have the potential, at some point in their lifetime, to release ENMs into their surrounding environment. However, the expanding body in environmental nanomaterial research has not yet shifted toward ENMs in the context of the complex outdoor urban environment. This is especially surprising because the world's human populations are on a steady march toward more and more urbanization and technological development, accompanied with increased applications for ENMs in the outdoor urban environment. Our objective for this paper is therefore to review, assess, and provide new information in this emerging field. We provide an overview of nanomaterials (NMs, encompassing both ENMs and incidental nanomaterials, INMs) that are likely to be released in the urban environment from outdoor sources by discussing 1) the applications of ENMs that may lead to release of ENMs in urban areas, 2) the recently published data on the release of ENMs from novel nano-enabled applications in the outdoor urban environment, 3) the available literature on the occurrence of INMs in the atmosphere and within/on dust particles, and 4) the potential pathways and fate of NMs in the outdoor urban environment. This review is then followed by three case studies demonstrating the importance of NMs in the outdoor urban environment. The first and second case studies illustrate the occurrence of NMs in urban dust and stormwater ponds, respectively, whereas the third case study discusses the lessons learned from the release of NMs (e.g. Pt, ph and Rh) from automotive vehicle catalytic convertors. This article ends with a discussion of the research priorities needed to advance this emerging field of "outdoor urban nanomaterials" and to assess the potential risks of NMs in the context of urban environments. (C) 2016 Elsevier B.V. All rights reserved. C1 [Baalousha, Mohammed; McNeal, Samantha] Univ S Carolina, Ctr Environm Nanosci & Risk, Dept Environm Hlth Sci, Columbia, SC 29208 USA. [Yang, Yi] E China Normal Univ, Dept Geosci, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China. [Yang, Yi; Xu, Jie; Hochella, Michael F., Jr.] Virginia Tech, Dept Geosci, Ctr NanoBioEarth, Blacksburg, VA 24061 USA. [Vance, Marina E.] Virginia Tech, Inst Crit Technol & Appl Sci, 410 Kelly Hall, Blacksburg, VA 24061 USA. [Colman, Benjamin P.; Blaszczak, Joanna; Bernhardt, Emily] Duke Univ, Dept Biol, Durham, NC 27708 USA. [Colman, Benjamin P.] Univ Montana, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA. [Steele, Meredith] Virginia Tech, Coll Agr & Life Sci, Blacksburg, VA 24061 USA. [Hochella, Michael F., Jr.] Pacific NW Natl Lab, Geosci Grp, Richland, WA 99354 USA. RP Yang, Y (reprint author), E China Normal Univ, Dept Geosci, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China.; Baalousha, M (reprint author), Univ S Carolina, Ctr Environm Nanosci & Risk, Dept Environm Hlth Sci, Arnold Sch Publ Hlth, Columbia, SC 29208 USA. EM mbaalous@mailbox.sc.edu; yyang@geo.ecnu.edu.cn RI Baalousha, Mohammed/F-6494-2011; Bernhardt, Emily/D-9940-2011; Vance, Marina/B-8711-2014 OI Baalousha, Mohammed/0000-0001-7491-4954; Bernhardt, Emily/0000-0003-3031-621X; Vance, Marina/0000-0003-0940-0353 FU South Carolina Sea Grant Consortium; National Oceanic and Atmospheric Administration (NOAA) [NA10OAR4170073]; National Science Foundation (NSF) [1437307, 1553909, 1542100]; Environmental Protection Agency (EPA) in the United States under NSF Cooperative Agreement [EF-0830093]; National Natural Science Foundation of China [41130525, 41522111, 41271473]; SmartState Center for Environmental Nanoscience and Risk at the University of South Carolina; Fundamental Research Funds for the Central Universities via the Open Foundation of East China Normal University FX This report was prepared in part as a result of work sponsored by the South Carolina Sea Grant Consortium with National Oceanic and Atmospheric Administration (NOAA) financial assistance number NA10OAR4170073. Grants from the National Science Foundation (NSF, 1437307, 1553909) and the Environmental Protection Agency (EPA) in the United States under NSF Cooperative Agreement EF-0830093, entitled Center for the Environmental Implications of Nanotechnology (CEINT); and the National Natural Science Foundation of China (41130525, 41522111 and 41271473) provided major financial support for this study. Additional support was provided by the SmartState Center for Environmental Nanoscience and Risk at the University of South Carolina and the Fundamental Research Funds for the Central Universities, via the Open Foundation of East China Normal University. The authors thank Stephen McCartney and Christopher Winkler in the Nanoscale Characterization and Fabrication Laboratory at Virginia Tech for assistance with electron microscopes used in this study, and finally the NSF-funded National Center for Earth and Environmental Nanotechnology Infrastructure at Virginia Tech (1542100). Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation, the Environmental Protection Agency, or the South Carolina Sea Grant Consortium or NOAA. Additionally, South Carolina Sea Grant Consortium and NOAA may copyright any work that is subject to copyright and was developed, or for which ownership was purchased, under financial assistance number NA10OAR4170073. The South Carolina Sea Grant Consortium and NOAA reserve a royalty-free, nonexclusive and irrevocable right to reproduce, publish, or otherwise use the work for Federal purposes, and to authorize others to do so. This work has not been subjected to EPA review and no official endorsement should be inferred. NR 155 TC 2 Z9 2 U1 23 U2 74 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0048-9697 EI 1879-1026 J9 SCI TOTAL ENVIRON JI Sci. Total Environ. PD JUL 1 PY 2016 VL 557 BP 740 EP 753 DI 10.1016/j.scitotenv.2016.03.132 PG 14 WC Environmental Sciences SC Environmental Sciences & Ecology GA DK7VZ UT WOS:000375136200078 PM 27046139 ER PT J AU Brown, TN Loverro, KL Schiffman, JM AF Brown, T. N. Loverro, K. L. Schiffman, J. M. TI Soldier-relevant body borne load impacts minimum foot clearance during obstacle negotiation SO APPLIED ERGONOMICS LA English DT Article DE Body borne load; Obstacle negotiation; Minimum foot clearance ID LOWER-LIMB KINEMATICS; OLDER-ADULTS; HEALTHY-YOUNG; WALKING SPEED; GAIT; STRATEGIES; CARRIAGE; LOCOMOTION; PARAMETERS; AVOIDANCE AB Soldiers often trip and fall on duty, resulting in injury. This study examined ten male soldiers' ability to negotiate an obstacle. Participants had lead and trail foot minimum foot clearance (MFC) parameters quantified while crossing a low (305 mm) and high (457 mm) obstacle with (19.4 kg) and without (6 kg) body borne load. To minimize tripping risk, participants increased lead foot MFC (p = 0.028) and reduced lead (p = 0.044) and trail (p = 0.035) foot variability when negotiating an obstacle with body borne load. While obstacle height had no effect on MFC (p = 0.273 and p = 0.126), placing the trail foot closer to the high obstacle when crossing with body borne load, resulted in greater lead (R = 0.640, b = 0.241, p = 0.046) and trail (R = 0.636, b = 0.287, p = 0.048) MFC. Soldiers, when carrying typical military loads, may be able to minimize their risk of tripping over an obstacle by creating a safety margin via greater foot clearance with reduced variability. Published by Elsevier Ltd. C1 [Brown, T. N.] Boise State Univ, Boise, ID 83725 USA. [Brown, T. N.] US Army Natick Soldier Res Dev & Engn Ctr, Natick, MA USA. [Brown, T. N.; Loverro, K. L.] ORISE, Belcamp, MD USA. [Schiffman, J. M.] Liberty Mutual Res Inst Safety, Hopkinton, MA USA. RP Brown, TN (reprint author), Boise State Univ, Dept Kinesiol, 1910 Univ Dr, Boise, ID 83725 USA. EM tynbrown@boisestate.edu FU Postgraduate Research Participation Program at the U.S. Army Natick Soldier Research, Development and Engineering Center FX The authors thank Ms. Megan Coyne for her assistance with this study. This research was supported in part by an appointment by the Postgraduate Research Participation Program at the U.S. Army Natick Soldier Research, Development and Engineering Center administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and NSRDEC. NR 33 TC 0 Z9 0 U1 4 U2 10 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0003-6870 EI 1872-9126 J9 APPL ERGON JI Appl. Ergon. PD JUL PY 2016 VL 55 BP 56 EP 62 DI 10.1016/j.apergo.2015.12.009 PG 7 WC Engineering, Industrial; Ergonomics; Psychology, Applied SC Engineering; Psychology GA DJ2ZQ UT WOS:000374074600007 PM 26995036 ER PT J AU Rothwell, SL Wang, F Liu, G Xu, C Feldman, LC Conrad, EH Guisinger, NP Cohen, PI AF Rothwell, S. L. Wang, F. Liu, G. Xu, C. Feldman, L. C. Conrad, E. H. Guisinger, N. P. Cohen, P. I. TI Landau level splitting in nitrogen-seeded epitaxial graphene SO CARBON LA English DT Article ID PSEUDO-MAGNETIC FIELDS; SEMICONDUCTING GRAPHENE AB We report scanning tunneling microscopy and spectroscopy (STM and STS) studies of graphene formed from a nitrogen-seeded SiC(000 (1) over bar) surface. STM indicates that much of the graphene consists of wide flat plateaus with hexagonal features bounded by pleats and regions with disordered character. Nitrogen impurities are not observed in the epitaxial graphene layers. STS measurements on this surface show peaks corresponding to Landau levels associated with pseudo-magnetic fields as high as 1000 T. The energy distribution of Landau levels is consistent with an electronic model employing a finite bandgap. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Rothwell, S. L.; Cohen, P. I.] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA. [Wang, F.; Conrad, E. H.] Georgia Inst Technol, Dept Phys, Atlanta, GA 30332 USA. [Liu, G.; Xu, C.; Feldman, L. C.] Rutgers State Univ, Inst Adv Mat Devices & Nanotechnol, Piscataway, NJ 08854 USA. [Guisinger, N. P.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Cohen, PI (reprint author), Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA. EM picohen@umn.edu OI Rothwell, Sara/0000-0003-1600-3727 FU NSF-DMR [1206793, 1206655, 1606256]; U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; U.S. Department of Energy, Office of Basic Energy Sciences [DE- SC0012704] FX We are grateful to T. Low for insightful discussions, and P. Zahl, and J. Wang for assistance in the data acquisition and analysis. We acknowledge funding from NSF-DMR 1206793, 1206655, 1606256. Use of the Center for Nanoscale Materials at Argonne was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This research was also carried out in part 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- SC0012704. Another portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility at Oak Ridge National Laboratory. NR 45 TC 0 Z9 0 U1 12 U2 66 PU PERGAMON-ELSEVIER SCIENCE LTD 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 2016 VL 103 BP 299 EP 304 DI 10.1016/j.carbon.2016.02.100 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DI9KR UT WOS:000373822100036 ER PT J AU Nar, M Rizvi, HR Dixon, RA Chen, F Kovalcik, A D'Souza, N AF Nar, Mangesh Rizvi, Hussain R. Dixon, Richard A. Chen, Fang Kovalcik, Adriana D'Souza, Nandika TI Superior plant based carbon fibers from electrospun poly-(caffeyl alcohol) lignin SO CARBON LA English DT Article ID SOFTWOOD LIGNIN; POLYMER; STRAW; BIOSYNTHESIS; COMPOSITES; PRECURSOR; BEHAVIOR; BLENDS; CROPS AB Plant-sourced carbon has a valuable impact on zero carbon footprint materials for automotive, aerospace, water filtration and other applications. A new lignin, poly-(caffeyl alcohol) (PCFA, also known as C-lignin), has recently been discovered in the seeds of the vanilla orchid (Vanilla planifolia). In contrast to all known lignins which are comprised of polyaromatic networks, the PCFA lignin is a linear polymer derived almost totally from caffeyl alcohol monomers linked head to tail into benzodioxane chains via the 'endwise' radical coupling reactions that typify lignification. In this paper we investigate carbon fiber formed from this linear C-lignin and compare it to a Kraft lignin. The PCFA was extracted and electrospun into fibers without additional modification or blending of polymers. Nanoindentation shows an increase in transverse and axial modulus for PCFA carbon by around 250% and 25% respectively as compared to Kraft lignin carbon. Raman spectroscopy results indicate higher graphitic structure for PCFA carbon than that from Kraft lignin, as seen from G/D ratios of 1.92 vs 1.15 which was supported by XPS and TEM results. Size exclusion chromatography indicates a polydispersity index (PDI) for PCFA of 1.6 as compared to 2.6 for Kraft lignin and Zeta potential measurements show higher ionic conductivity for Kraft lignin as compared to PCFA reflecting higher impurities. The results indicate a new bio-source for carbon fibers based on this newly identified linear lignin. (C) 2016 Published by Elsevier Ltd. C1 [Nar, Mangesh; D'Souza, Nandika] Univ N Texas, Dept Mat Sci & Engn, 1155 Union Circle 305310, Denton, TX 76203 USA. [Dixon, Richard A.; Chen, Fang] Univ N Texas, BioDiscovery Inst, Union Circle 305220, Denton, TX 76203 USA. [Dixon, Richard A.; Chen, Fang] Univ N Texas, Dept Biol Sci, Union Circle 305220, Denton, TX 76203 USA. [Rizvi, Hussain R.; D'Souza, Nandika] Univ N Texas, Dept Mech & Energy Engn, Union Circle 311098, Denton, TX 76203 USA. [Kovalcik, Adriana] Graz Univ Technol, Inst Chem & Technol Mat, Stremayrgasse 9, A-8010 Graz, Austria. [Chen, Fang] Oak Ridge Natl Lab, US DOE, BioEnergy Sci Ctr BESC, Oak Ridge, TN 37831 USA. [Kovalcik, Adriana] Competence Ctr Wood Composites & Wood Chem Wood K, Altenberger Str 69, A-4040 Linz, Austria. RP D'Souza, N (reprint author), Univ N Texas, Dept Mat Sci & Engn, 1155 Union Circle 305310, Denton, TX 76203 USA. EM ndsouza@unt.edu RI Kovalcik, Adriana/I-7386-2015 OI Kovalcik, Adriana/0000-0003-4833-7369 FU NSF [1456286, CMMI 1031828, PFI 1114389]; US Department of Energy's Bioenergy Sciences Center; Office of Biological and Environmental Research in the DOE Office of Science (BER) [DE-AC05-00OR22725] FX NAD, RAD and FC acknowledge NSF 1456286. NAD acknowledges support from NSF CMMI 1031828 and NSF PFI 1114389. RAD and FC acknowledge support from the US Department of Energy's Bioenergy Sciences Center, supported by the Office of Biological and Environmental Research in the DOE Office of Science (BER DE-AC05-00OR22725). We thank Dr Daphna Havkin-Frenkel, Bakto Flavors LLC, for provision of V. planifolia seeds. We thank Reza Mirshams, UNT for access to the Nanoindentation instrument. NR 77 TC 4 Z9 4 U1 23 U2 70 PU PERGAMON-ELSEVIER SCIENCE LTD 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 2016 VL 103 BP 372 EP 383 DI 10.1016/j.carbon.2016.02.053 PG 12 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DI9KR UT WOS:000373822100046 ER PT J AU Zhang, H Li, X Zhang, D Zhang, L Kapilashrami, M Sun, T Glans, PA Zhu, JF Zhong, J Hu, Z Guo, JH Sun, XH AF Zhang, Hui Li, Xin Zhang, Duo Zhang, Liang Kapilashrami, Mukes Sun, Tao Glans, Per-Anders Zhu, Junfa Zhong, Jun Hu, Zheng Guo, Jinghua Sun, Xuhui TI Comprehensive electronic structure characterization of pristine and nitrogen/phosphorus doped carbon nanocages SO CARBON LA English DT Article ID OXYGEN REDUCTION REACTION; X-RAY SPECTROSCOPY; METAL-FREE ELECTROCATALYSTS; SYNCHROTRON-RADIATION; BATTERY APPLICATION; ION BATTERIES; GRAPHENE; NANOTUBES; ABSORPTION; GRAPHITE AB The electronic structures of carbon nanocages (CNCs) and nitrogen/phosphorus doped carbon nanocages (N-CNCs/P-CNCs) have been studied by X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS), X-ray emission spectroscopy (XES) and resonant X-ray emission spectroscopy (RXES). The doping configurations for N/P dopants are identified from the experiments. The results have shown that there are three major doping configurations for nitrogen but only one doping configuration for phosphorus. The nitrogen doping reveals the complex coexistence of graphite-like, pyridine-like and pyrrole-like configurations that are proved by density functional theory (DFT) simulations, while the phosphorus doping presents only the "graphite-like" configuration. The different configuration profiles result in less atomic structure ordering of N-CNCs than that of P-CNCs. XAS spectra obtained from both surface and bulk sensitive detection suggest different chemical environments between the interior and shell for all types of nanocages. The electronic structure modifications show significant difference between nitrogen and phosphorus doping from the DOS calculations. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Zhang, Hui; Zhang, Duo; Zhong, Jun; Sun, Xuhui] Soochow Univ, Western Univ, Synchrotron Radiat Res Ctr, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China. [Zhang, Hui; Li, Xin; Zhang, Duo; Zhang, Liang; Kapilashrami, Mukes; Glans, Per-Anders; Guo, Jinghua] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Li, Xin] Royal Inst Technol, Sch Biotechnol, Dept Theoret Chem & Biol, S-10691 Stockholm, Sweden. [Zhang, Liang; Zhu, Junfa] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China. [Kapilashrami, Mukes] Univ Maryland, Dept Mech Engn, Ctr Engn Concepts Dev, College Pk, MD 20742 USA. [Hu, Zheng] Nanjing Univ, Key Lab Mesoscop Chem MOE, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China. [Guo, Jinghua] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA. RP Sun, XH (reprint author), Soochow Univ, Western Univ, Synchrotron Radiat Res Ctr, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China.; Guo, JH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.; Hu, Z (reprint author), Nanjing Univ, Key Lab Mesoscop Chem MOE, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China. EM zhenghu@nju.edu.cn; jguo@lbl.gov; xhsun@suda.edu.cn RI Glans, Per-Anders/G-8674-2016; Zhu, Junfa/E-4020-2010 OI Zhu, Junfa/0000-0003-0888-4261 FU Natural Science Foundation of China (NSFC) [91333112, U1432249]; Priority Academic Program Development of Jiangsu Higher Education Institutions; Collaborative Innovation Center of Suzhou Nano Science & Technology and sponsored by Qing Lan Project; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX The work is supported by Natural Science Foundation of China (NSFC) (Grant No. 91333112, U1432249), the Priority Academic Program Development of Jiangsu Higher Education Institutions. This is also a project supported by Collaborative Innovation Center of Suzhou Nano Science & Technology and sponsored by Qing Lan Project. 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. The Swedish National Infrastructure for Computing (SNIC) and the National Energy Research Scientific Computing Center (NERSC) are acknowledged for the computational resources. NR 53 TC 0 Z9 0 U1 39 U2 167 PU PERGAMON-ELSEVIER SCIENCE LTD 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 2016 VL 103 BP 480 EP 487 DI 10.1016/j.carbon.2016.03.042 PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DI9KR UT WOS:000373822100058 ER PT J AU Walston, LJ Rollins, KE LaGory, KE Smith, KP Meyers, SA AF Walston, Leroy J., Jr. Rollins, Katherine E. LaGory, Kirk E. Smith, Karen P. Meyers, Stephanie A. TI A preliminary assessment of avian mortality at utility-scale solar energy facilities in the United States SO RENEWABLE ENERGY LA English DT Article DE Avian mortality; Utility-scale; Solar energy; Wind energy; Fossil fuels; Impact assessment ID WILDLIFE CONSERVATION; BIRD MORTALITY; FOSSIL-FUEL; WIND; COLLISIONS; REMOVAL AB Despite the benefits of reduced toxic and carbon emissions and a perpetual energy resource, there is potential for negative environmental impacts resulting from utility-scale solar energy (USSE) development. Although USSE development may represent an avian mortality source, there is little knowledge regarding the magnitude of these impacts in the context of other avian mortality sources. In this study we present a first assessment of avian mortality at USSE facilities through a synthesis of available avian monitoring and mortality information at existing USSE facilities. Using this information, we contextualize USSE avian mortality relative to other forms of avian mortality at 2 spatial scales: a regional scale (confined to southern California) and a national scale. Systematic avian mortality information was available for three USSE facilities in the southern California region. We estimated annual USSE-related avian mortality to be between 16,200 and 59,400 birds in the southern California region, which was extrapolated to between 37,800 and 138,600 birds for all USSE facilities across the United States that are either installed or under construction. We also discuss issues related to avian solar interactions that should be addressed in future research and monitoring programs. Published by Elsevier Ltd. C1 [Walston, Leroy J., Jr.; Rollins, Katherine E.; LaGory, Kirk E.; Smith, Karen P.; Meyers, Stephanie A.] Argonne Natl Lab, Div Environm Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Meyers, Stephanie A.] US EPA, Reg 6, Dallas, TX USA. RP Walston, LJ (reprint author), Argonne Natl Lab, Div Environm Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM lwalston@anl.gov FU Argonne, a DOE Office of Science laboratory [DE-AC02-06CH11357] FX This work was performed for the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, SunShot Initiative. This manuscript was created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a DOE 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 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. NR 50 TC 0 Z9 0 U1 10 U2 31 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0960-1481 J9 RENEW ENERG JI Renew. Energy PD JUL PY 2016 VL 92 BP 405 EP 414 DI 10.1016/j.renene.2016.02.041 PG 10 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels SC Science & Technology - Other Topics; Energy & Fuels GA DI3TI UT WOS:000373421000038 ER PT J AU Dragicevic, T Lu, XN Vasquez, JC Guerrero, JM AF Dragicevic, Tomislav Lu, Xiaonan Vasquez, Juan C. Guerrero, Josep M. TI DC Microgrids-Part I: A Review of Control Strategies and Stabilization Techniques SO IEEE TRANSACTIONS ON POWER ELECTRONICS LA English DT Review DE Coordinated control; DC microgrid (MG); impedance specifications; local control; stability ID CONSTANT-POWER LOADS; DROOP CONTROL METHOD; DISTRIBUTED CONTROL STRATEGY; VOLTAGE POSITIONING AVP; ENERGY-STORAGE SYSTEMS; HIERARCHICAL CONTROL; ELECTRONIC CONVERTERS; COOPERATIVE CONTROL; STABILITY ANALYSIS; BUCK CONVERTERS AB This paper presents a review of control strategies, stability analysis, and stabilization techniques for dc microgrids (MGs). Overall control is systematically classified into local and coordinated control levels according to respective functionalities in each level. As opposed to local control, which relies only on local measurements, some line of communication between units needs to be made available in order to achieve the coordinated control. Depending on the communication method, three basic coordinated control strategies can be distinguished, i. e., decentralized, centralized, and distributed control. Decentralized control can be regarded as an extension of the local control since it is also based exclusively on local measurements. In contrast, centralized and distributed control strategies rely on digital communication technologies. A number of approaches using these three coordinated control strategies to achieve various control objectives are reviewed in this paper. Moreover, properties of dc MG dynamics and stability are discussed. This paper illustrates that tightly regulated point-of-load converters tend to reduce the stability margins of the system since they introduce negative impedances, which can potentially oscillate with lightly damped power supply input filters. It is also demonstrated that how the stability of the whole system is defined by the relationship of the source and load impedances, referred to as theminor loop gain. Several prominent specifications for the minor loop gain are reviewed. Finally, a number of active stabilization techniques are presented. C1 [Dragicevic, Tomislav; Vasquez, Juan C.; Guerrero, Josep M.] Aalborg Univ, Dept Energy Technol, DK-9100 Aalborg, Denmark. [Lu, Xiaonan] Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA. RP Dragicevic, T; Vasquez, JC; Guerrero, JM (reprint author), Aalborg Univ, Dept Energy Technol, DK-9100 Aalborg, Denmark.; Lu, XN (reprint author), Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA. EM tdr@et.aau.dk; xlu@anl.gov; juq@et.aau.dk; joz@et.aau.dk RI Vasquez, Juan/J-2247-2014; Guerrero, Josep/D-5519-2014; OI Vasquez, Juan/0000-0001-6332-385X; Guerrero, Josep/0000-0001-5236-4592; Dragicevic, Tomislav/0000-0003-4755-2024 NR 99 TC 17 Z9 17 U1 19 U2 121 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-8993 EI 1941-0107 J9 IEEE T POWER ELECTR JI IEEE Trans. Power Electron. PD JUL PY 2016 VL 31 IS 7 BP 4876 EP 4891 DI 10.1109/TPEL.2015.2478859 PG 16 WC Engineering, Electrical & Electronic SC Engineering GA DE3KV UT WOS:000370528800017 ER PT J AU Cao, Q Sun, N Yearsley, J Nijssen, B Lettenmaier, DP AF Cao, Qian Sun, Ning Yearsley, John Nijssen, Bart Lettenmaier, Dennis P. TI Climate and land cover effects on the temperature of Puget Sound streams SO HYDROLOGICAL PROCESSES LA English DT Article DE stream temperature; land use change; climate change; riparian shading ID HYDROLOGICALLY BASED DATASET; CONTERMINOUS UNITED-STATES; AIR TEMPERATURES; THERMAL HABITAT; SURFACE FLUXES; SALMON HABITAT; WATER; MODEL; SCENARIOS; IMPACTS AB We apply an integrated hydrology-stream temperature modeling system, DHSVM-RBM, to examine the response of the temperature of the major streams draining to Puget Sound to land cover and climate change. We first show that the model construct is able to reconstruct observed historic streamflow and stream temperature variations at a range of time scales. We then explore the relative effect of projected future climate and land cover change, including riparian vegetation, on streamflow and stream temperature. Streamflow in summer is likely to decrease as the climate warms especially in snowmelt-dominated and transient river basins despite increased streamflow in their lower reaches associated with urbanization. Changes in streamflow also result from changes in land cover, and changes in stream shading result from changes in riparian vegetation, both of which influence stream temperature. However, we find that the effect of riparian vegetation changes on stream temperature is much greater than land cover change over the entire basin especially during summer low flow periods. Furthermore, while future projected precipitation change will have relatively modest effects on stream temperature, projected future air temperature increases will result in substantial increases in stream temperature especially in summer. These summer stream temperature increases will be associated both with increasing air temperature, and projected decreases in low flows. We find that restoration of riparian vegetation could mitigate much of the projected summer stream temperature increases. We also explore the contribution of riverine thermal loadings to the heat balance of Puget Sound, and find that the riverine contribution is greatest in winter, when streams account for up to 1/8 of total thermal inputs (averaged from December through February), with larger effects in some sub-basins. We project that the riverine impact on thermal inputs to Puget Sound will become greater with both urbanization and climate change in winter but become smaller in summer due to climate change. Copyright (c) 2016 John Wiley & Sons, Ltd. C1 [Cao, Qian; Lettenmaier, Dennis P.] Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA. [Sun, Ning; Yearsley, John; Nijssen, Bart] Univ Washington, Civil & Environm Engn, Seattle, WA 98195 USA. [Sun, Ning] Pacific Northwest Natl Lab, Richland, WA USA. RP Lettenmaier, DP (reprint author), Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90024 USA. EM dlettenm@ucla.edu RI Nijssen, Bart/B-1013-2012 OI Nijssen, Bart/0000-0002-4062-0322 FU EPA STAR grant [835195] FX This work was funded in part through EPA STAR grant 835195 to the University of Washington. The authors gratefully acknowledge John Abatzogolou for providing the downscaled projected future climate data, and Greg Pelletier, Washington State Department of Ecology, for providing the Visual Basic code for simulating heat transport in Puget Sound. NR 64 TC 2 Z9 2 U1 9 U2 14 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0885-6087 EI 1099-1085 J9 HYDROL PROCESS JI Hydrol. Process. PD JUN 30 PY 2016 VL 30 IS 13 BP 2286 EP 2304 DI 10.1002/hyp.10784 PG 19 WC Water Resources SC Water Resources GA DR2MW UT WOS:000379739600024 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Asilar, E Bergauer, T Brandstetter, J Brondolin, E Dragicevic, M Ero, J Flechl, M Friedl, M Fruhwirth, R Ghete, VM Hartl, C Hormann, N Hrubec, J Jeitler, M Knunz, V Konig, A Krammer, M Kratschmer, I Liko, D Matsushita, T Mikulec, I Rabady, D Rahbaran, B Rohringer, H Schieck, J Schofbeck, R Strauss, J Treberer-Treberspurg, W Waltenberger, W Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Alderweireldt, S Cornelis, T De Wolf, EA Janssen, X Knutsson, A Lauwers, J Luyckx, S Van de Klundert, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Van Spilbeeck, A Abu Zeid, S Blekman, F D'Hondt, J Daci, N De Bruyn, I Deroover, K Heracleous, N Keaveney, J Lowette, S Moreels, L Olbrechts, A Python, Q Strom, D Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Van Parijs, I Barria, P Brun, H Caillol, C Clerbaux, B De Lentdecker, G Fasanella, G Favart, L Grebenyuk, A Karapostoli, G Lenzi, T Leonard, A Maerschalk, T Marinov, A Pernie, L Randle-conde, A Reis, T Seva, T Velde, CV Vanlaer, P Yonamine, R Zenoni, F Beernaert, K Benucci, L Cimmino, A Crucy, S Dobur, D Fagot, A Garcia, G Gul, M Mccartin, J Rios, AAO Poyraz, D Ryckbosch, D Salva, S Sigamani, M Strobbe, N Tytgat, M Van Driessche, W Yazgan, E Zaganidis, N Basegmez, S Beluffi, C Bondu, O Brochet, S Bruno, G Caudron, A Ceard, L Da Silveira, GG Delaere, C Favart, D Forthomme, L Giammanco, A Hollar, J Jafari, A Jez, P Komm, M Lemaitre, V Mertens, A Musich, M Nuttens, C Perrini, L Pin, A Piotrzkowski, K Popov, A Quertenmont, L Selvaggi, M Marono, MV Beliy, N Hammad, GH Alda, WL Alves, FL Alves, GA Brito, L Martins, MC Hamer, M Hensel, C Herrera, CM Moraes, A Pol, ME Teles, PR Das Chagas, EBB Carvalho, W Chinellato, J Custodio, A Da Costa, EM Damiao, DD Martins, CD De Souza, SF Guativa, LMH Malbouisson, H Figueiredo, DM Mundim, L Nogima, H Da Silva, WLP Santoro, A Sznajder, A Manganote, EJT Pereira, AV Ahuja, S Bernardes, CA Santos, AD Dogra, S Tomei, TRFP Gregores, EM Mercadante, PG Moon, CS Novaes, SF Padula, SS Abad, DR Vargas, JCR Aleksandrov, A Hadjiiska, R Iaydjiev, P Rodozov, M Stoykova, S Sultanov, G Vutova, M Dimitrov, A Glushkov, I Litov, L Pavlov, B Petkov, P Ahmad, M Bian, JG Chen, GM Chen, HS Chen, M Cheng, T Du, R Jiang, CH Plestina, R Romeo, F Shaheen, SM Tao, J Wang, C Wang, Z Zhang, H Asawatangtrakuldee, C Ban, Y Li, Q Liu, S Mao, Y Qian, SJ Wang, D Xu, Z Avila, C Cabrera, A Sierra, LFC Florez, C Gomez, JP Moreno, BG Sanabria, JC Godinovic, N Lelas, D Puljak, I Cipriano, PMR Antunovic, Z Kovac, M Brigljevic, V Kadija, K Luetic, J Micanovic, S Sudic, L Attikis, A Mavromanolakis, G Mousa, J Nicolaou, C Ptochos, F Razis, PA Rykaczewski, H Bodlak, M Finger, M Finger, M Assran, Y El Sawy, M Elgammal, S Kamel, AE Mahmoud, MA Calpas, B Kadastik, M Murumaa, M Raidal, M Tiko, A Veelken, C 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Sheffield, D. Somalwar, S. Stone, R. Thomas, S. Thomassen, P. Walker, M. Foerster, M. Riley, G. Rose, K. Spanier, S. York, A. Bouhali, O. Hernandez, A. Castaneda Dalchenko, M. De Mattia, M. Delgado, A. Dildick, S. Eusebi, R. Gilmore, J. Kamon, T. Krutelyov, V. Mueller, R. Osipenkov, I. Pakhotin, Y. Patel, R. Perloff, A. Rose, A. Safonov, A. Tatarinov, A. Ulmer, K. A. Akchurin, N. Cowden, C. Damgov, J. Dragoiu, C. Dudero, P. R. Faulkner, J. Kunori, S. Lamichhane, K. Lee, S. W. Libeiro, T. Undleeb, S. Volobouev, I. Appelt, E. Delannoy, A. G. Greene, S. Gurrola, A. Janjam, R. Johns, W. Maguire, C. Mao, Y. Melo, A. Ni, H. Sheldon, P. Snook, B. Tuo, S. Velkovska, J. Xu, Q. Arenton, M. W. Cox, B. Francis, B. Goodell, J. Hirosky, R. Ledovskoy, A. Li, H. Lin, C. Neu, C. Sun, X. Wang, Y. Wolfe, E. Wood, J. Xia, F. Clarke, C. Harr, R. Karchin, P. E. Don, C. Kottachchi Kankanamge Lamichhane, P. Sturdy, J. Belknap, D. A. Carlsmith, D. Cepeda, M. Dasu, S. Dodd, L. Duric, S. Friis, E. Gomber, B. Grothe, M. Hall-Wilton, R. Herndon, M. Herve, A. Klabbers, P. Lanaro, A. Levine, A. Long, K. Loveless, R. Mohapatra, A. Ojalvo, I. Perry, T. Pierro, G. A. Polese, G. Ruggles, T. Sarangi, T. Savin, A. Sharma, A. Smith, N. Smith, W. H. Taylor, D. Woods, N. CA CMS Collaboration TI Search for the associated production of a Higgs boson with a single top quark in proton-proton collisions at root s=8 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron scattering (experiments); Higgs physics; Top physics ID ATLAS DETECTOR; LHC AB This paper presents the search for the production of a Higgs boson in association with a single top quark (tHq), using data collected in proton-proton collisions at a center-of-mass energy of 8TeV corresponding to an integrated luminosity of 19.7 fb(-1). The search exploits a variety of Higgs boson decay modes resulting in final states with photons, bottom quarks, and multiple charged leptons, including tau leptons, and employs a variety of multivariate techniques to maximize sensitivity to the signal. The analysis is optimized for the opposite sign of the Yukawa coupling to that in the standard model, corresponding to a large enhancement of the signal cross section. In the absence of an excess of candidate signal events over the background predictions, 95% confidence level observed (expected) upper limits on anomalous tHq production are set, ranging between 600 (450) fb and 1000 (700) fb depending on the assumed diphoton branching fraction of the Higgs boson. This is the first time that results on anomalous tHq production have been reported. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan, Armenia. 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J.; Vilela Pereira, A.] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil. [Ahuja, S.; Dogra, S.; Fernandez Perez Tomei, T. R.; Moon, C. S.; Novaes, S. F.; Padula, Sandra S.] Univ Estadual Paulista, Sao Paulo, Brazil. [Bernardes, C. A.; De Souza Santos, A.; Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Sao Paulo, Brazil. [Aleksandrov, A.; Hadjiiska, R.; Iaydjiev, P.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Vutova, M.] Inst Nucl Energy Res, Sofia, Bulgaria. [Dimitrov, A.; Glushkov, I.; Litov, L.; Pavlov, B.; Petkov, P.] Univ Sofia, Sofia, Bulgaria. [Ahmad, M.; Bian, J. G.; Chen, G. M.; Chen, H. S.; Chen, M.; Cheng, T.; Du, R.; Jiang, C. H.; Plestina, R.; Romeo, F.; Shaheen, S. M.; Tao, J.; Wang, C.; Wang, Z.; Zhang, H.] Inst High Energy Phys, Beijing, Peoples R China. [Asawatangtrakuldee, C.; Ban, Y.; Li, Q.; Liu, S.; Mao, Y.; Qian, S. J.; Wang, D.; Xu, Z.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China. [Avila, C.; Cabrera, A.; Chaparro Sierra, L. F.; Florez, C.; Gomez, J. P.; Gomez Moreno, B.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Puljak, I.; Cipriano, P. M. Ribeiro] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia. [Antunovic, Z.; Kovac, M.] Univ Split, Fac Sci, Split, Croatia. [Brigljevic, V.; Kadija, K.; Luetic, J.; Micanovic, S.; Sudic, L.] Inst Rudjer Boskov, Zagreb, Croatia. [Attikis, A.; Mavromanolakis, G.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.] Univ Cyprus, Nicosia, Cyprus. Charles Univ Prague, Prague, Czech Republic. [Bodlak, M.; Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; El Sawy, M.; Elgammal, S.; Kamel, A. Ellithi; Mahmoud, M. A.] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt. [Giammanco, A.; Calpas, B.; Kadastik, M.; Murumaa, M.; Raidal, M.; Tiko, A.; Veelken, C.] NICPB, Tallinn, Estonia. [Eerola, P.; Pekkanen, J.; Voutilainen, M.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Harkonen, J.; Karimaki, V.; Kinnunen, R.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Peltola, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Talvitie, J.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Besancon, M.; Couderc, F.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Favaro, C.; Ferri, F.; Ganjour, S.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Machet, M.; Malcles, J.; Rander, J.; Rosowsky, A.; Titov, M.; Zghiche, A.] CEA Saclay, DSM IRFU, Gif Sur Yvette, France. [Plestina, R.; Antropov, I.; Baffioni, S.; Beaudette, F.; Busson, P.; Cadamuro, L.; Chapon, E.; Charlot, C.; Dahms, T.; Davignon, O.; Filipovic, N.; Florent, A.; de Cassagnac, R. Granier; Lisniak, S.; Mastrolorenzo, L.; Mine, P.; Naranjo, I. N.; Nguyen, M.; Ochando, C.; Ortona, G.; Paganini, P.; Pigard, P.; Regnard, S.; Salerno, R.; Sauvan, J. B.; Sirois, Y.; Strebler, T.; Yilmaz, Y.; Zabi, A.] Ecole Polytech, CNRS IN2P3, Lab Leprince Ringuet, Palaiseau, France. [Beluffi, C.; Agram, J. -L.; Andrea, J.; Aubin, A.; Bloch, D.; Brom, J. -M.; Buttignol, M.; Chabert, E. C.; Chanon, N.; Collard, C.; Conte, E.; Coubez, X.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Goetzmann, C.; Le Bihan, A. -C.; Merlin, J. A.; Skovpen, K.; Van Hove, P.] Univ Strasbourg, Univ Haute Alsace Mulhouse, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France. [Gadrat, S.] CNRS IN2P3, Ctr Calcul Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France. [Beauceron, S.; Bernet, C.; Boudoul, G.; Bouvier, E.; Montoya, C. A. Carrillo; Chierici, R.; Contardo, D.; Courbon, B.; Depasse, P.; El Mamouni, H.; Fan, J.; Fay, J.; Gascon, S.; Gouzevitch, M.; Ille, B.; Lagarde, F.; Laktineh, I. B.; Lethuillier, M.; Mirabito, L.; Pequegnot, A. L.; Perries, S.; Alvarez, J. D. Ruiz; Sabes, D.; Sgandurra, L.; Sordini, V.; Donckt, M. Vander; Verdier, P.; Viret, S.] Univ Lyon, Univ Claude Bernard Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Toriashvili, T.] Georgian Tech Univ, Tbilisi, GA, Rep of Georgia. [Toriashvili, T.; Tsamalaidze, Z.] Tbilisi State Univ, Tbilisi, Rep of Georgia. [Autermann, C.; Beranek, S.; Edelhoff, M.; Feld, L.; Heister, A.; Kiesel, M. K.; Klein, K.; Lipinski, M.; Ostapchuk, A.; Preuten, M.; Raupach, F.; Schael, S.; Schulte, J. F.; Verlage, T.; Weber, H.; Wittmer, B.; Zhukov, V.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Brodski, M.; Dietz-Laursonn, E.; Duchardt, D.; Endres, M.; Erdmann, M.; Erdweg, S.; Esch, T.; Gueth, A.; Hebbeker, T.; Heidemann, C.; Hoepfner, K.; Klingebiel, D.; Knutzen, S.; Kreuzer, P.; Merschmeyer, M.; Meyer, A.; Millet, P.; Olschewski, M.; Padeken, K.; Papacz, P.; Pook, T.; Radziej, M.; Reithler, H.; Rieger, M.; Scheuch, F.; Sonnenschein, L.; Teyssier, D.; Thueer, S.; Borras, K.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Cherepanov, V.; Erdogan, Y.; Fluegge, G.; Geenen, H.; Geisler, M.; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Kuensken, A.; Lingemann, J.; Nehrkorn, A.; Nowack, A.; Nugent, I. M.; Pistone, C.; Pooth, O.; Stahl, A.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Asin, I.; Bartosik, N.; Behnke, O.; Behrens, U.; Bell, A. J.; Borras, K.; Burgmeier, A.; Cakir, A.; Campbell, A.; Choudhury, S.; Costanza, F.; Pardos, C. Diez; Dolinska, G.; Dooling, S.; Dorland, T.; Eckerlin, G.; Eckstein, D.; Eichhorn, T.; Flucke, G.; Gallo, E.; Garcia, J. Garay; Geiser, A.; Gizhko, A.; Gunnellini, P.; Hauk, J.; Hempel, M.; Jung, H.; Kalogeropoulos, A.; Karacheban, O.; Kasemann, M.; Katsas, P.; Kieseler, J.; Kleinwort, C.; Korol, I.; Lange, W.; Leonard, J.; Lipka, K.; Lobanov, A.; Lohmann, W.; Mankel, R.; Marfin, I.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mittag, G.; Mnich, J.; Mussgiller, A.; Naumann-Emme, S.; Nayak, A.; Ntomari, E.; Perrey, H.; Pitzl, D.; Placakyte, R.; Raspereza, A.; Roland, B.; Sahin, M. O.; Saxena, P.; Schoerner-Sadenius, T.; Schroeder, M.; Seitz, C.; Spannagel, S.; Trippkewitz, K. D.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Gallo, E.; Blobel, V.; Vignali, M. Centis; Draeger, A. R.; Erfle, J.; Garutti, E.; Goebel, K.; Gonzalez, D.; Goerner, M.; Haller, J.; Hoffmann, M.; Hoeing, R. S.; Junkes, A.; Klanner, R.; Kogler, R.; Lapsien, T.; Lenz, T.; Marchesini, I.; Marconi, D.; Meyer, M.; Nowatschin, D.; Ott, J.; Pantaleo, F.; Peiffer, T.; Perieanu, A.; Pietsch, N.; Poehlsen, J.; Rathjens, D.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schmidt, A.; Schwandt, J.; Seidel, M.; Sola, V.; Stadie, H.; Steinbrueck, G.; Tholen, H.; Troendle, D.; Usai, E.; Vanelderen, L.; Vanhoefer, A.; Vormwald, B.] Univ Hamburg, Hamburg, Germany. [Akbiyik, M.; Barth, C.; Baus, C.; Berger, J.; Boeser, C.; Butz, E.; Chwalek, T.; Colombo, F.; De Boer, W.; Descroix, A.; Dierlamm, A.; Faltermann, N.; Fink, S.; Frensch, F.; Giffels, M.; Gilbert, A.; Hartmann, F.; Heindl, S. M.; Husemann, U.; Katkov, I.; Kornmayer, A.; Pardo, P. Lobelle; Maier, B.; Mozer, M. U.; Mueller, T.; Mueller, Th.; Plagge, M.; Quast, G.; Rabbertz, K.; Roecker, S.; Roscher, F.; Simonis, H. J.; Stober, F. M.; Ulrich, R.; Wagner-Kuhr, J.; Wayand, S.; Weber, M.; Weiler, T.; Woehrmann, C.; Wolf, R.] Inst Expt Kernphys, Karlsruhe, Germany. [Anagnostou, G.; Daskalakis, G.; Geralis, T.; Giakoumopoulou, V. A.; Kyriakis, A.; Loukas, D.; Psallidas, A.; Topsis-Giotis, I.] NCSR Demokritos, Inst Nucl & Particle Phys, Aghia Paraskevi, Greece. [Agapitos, A.; Kesisoglou, S.; Panagiotou, A.; Saoulidou, N.; Tziaferi, E.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Flouris, G.; Foudas, C.; Kokkas, P.; Loukas, N.; Manthos, N.; Papadopoulos, I.; Paradas, E.; Strologas, J.] Univ Ioannina, Ioannina, Greece. [Bencze, G.; Hajdu, C.; Hazi, A.; Hidas, P.; Horvath, D.; Sikler, F.; Veszpremi, V.; Vesztergombi, G.; Zsigmond, A. J.; Bartok, M.] Wigner Res Ctr Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Czellar, S.; Karancsi, J.; Molnar, J.; Szillasi, Z.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Karancsi, J.; Bartok, M.; Makovec, A.; Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Mal, P.; Mandal, K.; Sahoo, D. K.; Sahoo, N.; Swain, S. K.] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Chawla, R.; Gupta, R.; Bhawandeep, U.; Kalsi, A. K.; Kaur, A.; Kaur, M.; Kumar, R.; Mehta, A.; Mittal, M.; Singh, J. B.; Walia, G.] Panjab Univ, Chandigarh, India. [Kumar, Ashok; Bhardwaj, A.; Choudhary, B. C.; Garg, R. B.; Kumar, A.; Malhotra, S.; Naimuddin, M.; Nishu, N.; Ranjan, K.; Sharma, R.; Sharma, V.] Univ Delhi, Delhi, India. [Bhattacharya, S.; Chatterjee, K.; Dey, S.; Dutta, S.; Jain, Sa.; Majumdar, N.; Modak, A.; Mondal, K.; Mukherjee, S.; Mukhopadhyay, S.; Roy, A.; Roy, D.; Chowdhury, S. Roy; Sarkar, S.; Sharan, M.] Saha Inst Nucl Phys, Kolkata, India. [Abdulsalam, A.; Chudasama, R.; Dutta, D.; Jha, V.; Kumar, V.; Mohanty, A. K.; Pant, L. M.; Shukla, P.; Topkar, A.] Bhabha Atom Res Ctr, Mumbai, Maharashtra, India. [Aziz, T.; Banerjee, S.; Bhowmik, S.; Chatterjee, R. M.; Dewanjee, R. K.; Dugad, S.; Ganguly, S.; Ghosh, S.; Guchait, M.; Gurtu, A.; Kole, G.; Kumar, S.; Mahakud, B.; Maity, M.; Majumder, G.; Mazumdar, K.; Mitra, S.; Mohanty, G. B.; Parida, B.; Sarkar, T.; Sur, N.; Sutar, B.; Wickramage, N.] Tata Inst Fundamental Res, Mumbai, Maharashtra, India. [Chauhan, S.; Dube, S.; Sharma, S.] IISER, Pune, Maharashtra, India. [Bakhshiansohi, H.; Behnamian, H.; Etesami, S. M.; Fahim, A.; Goldouzian, R.; Khakzad, M.; Najafabadi, M. Mohammadi; Naseri, M.; Mehdiabadi, S. Paktinat; Hosseinabadi, F. Rezaei; Safarzadeh, B.; Zeinali, M.] Inst Res Fundamental Sci IPM, Tehran, Iran. [Felcini, M.; Grunewald, M.] Univ Coll Dublin, Dublin, Ireland. [Abbrescia, M.; Calabria, C.; Caputo, C.; Colaleo, A.; Creanza, D.; Cristella, L.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Maggi, G.; Maggi, M.; Miniello, G.; My, S.; Nuzzo, S.; Pompili, A.; Pugliese, G.; Radogna, R.; Ranieri, A.; Selvaggi, G.; Silvestris, L.; Venditti, R.; Verwilligen, P.] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy. [Abbrescia, M.; Calabria, C.; Caputo, C.; Cristella, L.; De Palma, M.; Miniello, G.; Nuzzo, S.; Pompili, A.; Radogna, R.; Selvaggi, 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.; Campanini, R.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Chhibra, S. S.; Codispoti, G.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Grandi, C.; Guiducci, L.; Marcellini, S.; Masetti, G.; Montanari, A.; Navarria, F. L.; Perrotta, A.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Tosi, N.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy. [Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Campanini, R.; Capiluppi, P.; Castro, A.; Chhibra, S. S.; Codispoti, G.; Cuffiani, M.; Fanfani, A.; Fasanella, D.; Guiducci, L.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G. P.; Tosi, N.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Cappello, G.; Chiorboli, M.; Costa, S.; Giordano, F.; Potenza, R.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, Catania, Italy. [Chiorboli, M.; Costa, S.; Giordano, F.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. CSFNSM, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Gonzi, S.; Gori, V.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.; Viliani, L.] Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Gonzi, S.; Gori, V.; Lenzi, P.; Tropiano, A.; Viliani, L.] Univ Florence, Florence, Italy. [Fabbri, F.; Benussi, L.; Bianco, S.; Piccolo, D.; Primavera, F.] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy. [Calvelli, V.; Ferro, F.; Lo Vetere, M.; Monge, M. R.; Robutti, E.; Tosi, S.] Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy. [Calvelli, V.; Lo Vetere, M.; Monge, M. R.; Tosi, S.] Univ Genoa, Genoa, Italy. [Dinardo, M. E.; Fiorendi, S.; Gennai, S.; Gerosa, R.; Ghezzi, A.; Govoni, P.; Malvezzi, S.; Manzoni, R. A.; Marzocchi, B.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, Milan, Italy. [Dinardo, M. E.; Fiorendi, S.; Gerosa, R.; Ghezzi, A.; Govoni, P.; Manzoni, R. A.; Marzocchi, B.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Cavallo, N.; Di Guida, S.; Esposito, M.; Fabozzi, F.; Iorio, A. O. M.; Lanza, G.; Lista, L.; Meola, S.; Merola, M.; Paolucci, P.; Sciacca, C.; Thyssen, F.] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy. [Esposito, M.; Iorio, A. O. M.; Sciacca, C.] Univ Naples Federico II, Naples, Italy. [Cavallo, N.; Fabozzi, F.] Univ Basilicata, Rome, Italy. [Di Guida, S.; Meola, S.] Univ G Marconi, Potenza, Italy. [Azzi, P.; Bacchetta, N.; Benato, L.; Bisello, D.; Boletti, A.; Branca, A.; Carlin, R.; Checchia, P.; Dall'Osso, M.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Gozzelino, A.; Kanishchev, K.; Lacaprara, S.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Ventura, S.; Zotto, P.; Zucchetta, A.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Benato, L.; Bisello, D.; Boletti, A.; Branca, A.; Carlin, R.; Dall'Osso, M.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pazzini, J.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Zotto, P.; Zucchetta, A.; Zumerle, G.] Univ Padua, Padua, Italy. [Kanishchev, K.] Univ Trent, Trento, Italy. [Braghieri, A.; Magnani, A.; Montagna, P.; Ratti, S. P.; Re, V.; Riccardi, C.; Salvini, P.; Vai, I.; Vitulo, P.] Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy. [Montagna, P.; Ratti, S. P.; Riccardi, C.; Vitulo, P.] Univ Pavia, Pavia, Italy. [Solestizi, L. Alunni; Biasini, M.; Bilei, G. M.; Ciangottini, D.; Fano, L.; Lariccia, P.; Mantovani, G.; Menichelli, M.; Saha, A.; Santocchia, A.; Spiezia, A.] Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy. [Solestizi, L. Alunni; Biasini, M.; Ciangottini, D.; Fano, L.; Lariccia, P.; Mantovani, G.; Santocchia, A.; Spiezia, A.] Univ Perugia, Perugia, Italy. [Androsov, K.; Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Castaldi, R.; Ciocci, M. A.; Dell'Orso, R.; Donato, S.; Fedi, G.; Foa, L.; Giassi, A.; Grippo, M. T.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Rizzi, A.; Savoy-Navarro, A.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdin, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Martini, L.; Messineo, A.; Rizzi, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Donato, S.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; D'imperio, G.; Del Re, D.; Diemoz, M.; Gelli, S.; Jorda, C.; Longo, E.; Margarol, F.; Meridiani, P.; Organtini, G.; Paramatti, R.; Preiato, F.; Rahatlou, S.; Rovelli, C.; Santanastasio, F.; Traczyk, P.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; D'imperio, G.; Del Re, D.; Gelli, S.; Longo, E.; Margarol, F.; Organtini, G.; Preiato, F.; Rahatlou, S.; Santanastasio, F.; Traczyk, P.] Univ Roma, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Bellan, R.; Biino, C.; Cartiglia, N.; Costa, M.; Covarelli, R.; Degano, A.; Demaria, N.; Finco, L.; Kiani, B.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Monteil, E.; Obertino, M. M.; Pacher, L.; Pastrone, N.; Pelliccioni, M.; Angioni, G. L. Pinna; Ravera, F.; Romero, A.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.; Tamponi, U.] Ist Nazl Fis Nucl, Sez Torino, Turin, Italy. [Amapane, N.; Argiro, S.; Bellan, R.; Costa, M.; Covarelli, R.; Degano, A.; Finco, L.; Kiani, B.; Migliore, E.; Monaco, V.; Monteil, E.; Obertino, M. M.; Pacher, L.; Angioni, G. L. Pinna; Ravera, F.; Romero, A.; Sacchi, R.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Ruspa, M.] Univ Piemonte Orientale, Novara, Italy. [Belforte, S.; Candelise, V.; Casarsa, M.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; La Licata, C.; Marone, M.; Schizzi, A.; Zanetti, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Candelise, V.; Della Ricca, G.; La Licata, C.; Marone, M.; Schizzi, A.] Univ Trieste, Trieste, Italy. [Kropivnitskaya, A.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Kim, D. H.; Kim, G. N.; Kim, M. S.; Kong, D. J.; Lee, S.; Oh, Y. D.; Sakharov, A.; Son, D. C.; Kamon, T.] Kyungpook Natl Univ, Daegu, South Korea. [Cifuentes, J. A. Brochero; Kim, H.; Kim, T. J.] Chonbuk Natl Univ, Jeonju, South Korea. [Song, S.] Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea. [Lee, S.; Kim, H.; Choi, S.; Go, Y.; Gyun, D.; Hong, B.; Jo, M.; Kim, Y.; Lee, B.; Lee, K.; Lee, K. S.; Park, S. K.; Roh, Y.] Korea Univ, Seoul, South Korea. [Yoo, H. D.] Seoul Natl Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kim, J. H.; Lee, J. S. H.; Park, I. C.; Ryu, G.; Ryu, M. S.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Goh, J.; Kim, D.; Kwon, E.; Lee, J.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Juodagalvis, A.; Vaitkus, J.] Vilnius Univ, Vilnius, Lithuania. [Ahmed, I.; Bin Anuar, A. A.; Ibrahim, Z. A.; Komaragiri, J. R.; Ali, M. A. B. Md; Idris, F. Mohamad; Abdullah, W. A. T. Wan; Yusli, M. N.] Univ Malaya, Natl Ctr Particle Phys, Kuala Lumpur, Malaysia. [Casimiro Linares, E.; Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-De La Cruz, I.; Hernandez-Almada, A.; Lopez-Fernandez, R.; Sanchez-Hernandez, A.] IPN, Ctr Invest & Estudios Avanzados, Mexico City, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Pedraza, I.; Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Morelos Pineda, A.] Univ Autonoma San Luis Potos, San Luis Potosi, Mexico. [Krofcheck, D.] Univ Auckland, Auckland, New Zealand. [Butler, P. H.] Univ Canterbury, Christchurch, New Zealand. [Ahmad, M.; Ahmad, A.; Hassan, Q.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Bialkowska, H.; Bluj, M.; Boimska, B.; Frueboes, T.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Zalewski, P.] Natl Ctr Nucl Res, Otwock, Poland. [Brona, G.; Bunkowski, K.; Byszuk, A.; Doroba, K.; Kalinowski, A.; Konecki, M.; Kro-likowski, J.; Misiura, M.; Olszewski, M.; Walczak, M.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland. [Bargassa, P.; Beirao Da Cruz E Silva, C.; Di Francesco, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Leonardo, N.; Lloret Iglesias, L.; Nguyen, F.; Rodrigues Antunes, J.; Seixas, J.; Toldaiev, O.; Vadruccio, D.; Varela, J.; Vischia, P.] Lab Instrumentacao & Fis Exp Particulas, Lisbon, Portugal. [Finger, M.; Finger, M., Jr.; Tsamalaidze, Z.; Afanasiev, S.; Bunin, P.; Gavrilenko, M.; Golutvin, I.; Gorbunov, I.; Kamenev, A.; Karjavin, V.; Konoplyanikov, V.; Lanev, A.; Malakhov, A.; Matveev, V.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Shulha, S.; Skatchkov, N.; Smirnov, V.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Kuznetsova, E.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Matveev, V.; Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Karneyeu, A.; Kirsanov, M.; Krasnikov, N.; Pashenkov, A.; Tlisov, D.; Toropin, A.; Musienko, Y.] Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Lychkovskaya, N.; Popov, V.; Pozdnyakov, I.; Safronov, G.; Spiridonov, A.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow, Russia. [Bylinkin, A.; Azarkin, M.; Dremin, I.; Leonidov, A.] Natl Res Nucl Univ, Moscow Engn Phys Inst MEPhI, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.] PN Lebedev Phys Inst, Moscow, Russia. [Popov, A.; Zhukov, V.; Katkov, I.; Baskakov, A.; Boos, E.; Bunichev, V.; Dubinin, M.; Dudko, L.; Klyukhin, V.; Kodolova, O.; Korneeva, N.; Lokhtin, I.; Myagkov, I.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Savrin, V.] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Kachanov, V.; Kalinin, A.; 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.; Milosevic, J.; Rekovic, V.; Alcaraz Maestre, J.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De la Cruz, B.; Delgado Peris, A.; Dominguez Vazquez, D.; Escalante Del Valle, A.; 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.; Navarro De Martino, E.; Perez-Calero Yzquierdo, A.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade, Serbia. [Adzic, P.; Milosevic, J.; Rekovic, V.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Alcaraz Maestre, J.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De la Cruz, B.; Delgado Peris, A.; Dominguez Vazquez, D.; Escalante Del Valle, A.; 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.; Navarro De Martino, E.; Perez-Calero Yzquierdo, A.; Puerta Pelayo, J.; Quintario Olmeda, A.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.] CIEMAT, Madrid, Spain. [Albajar, C.; de Troconiz, J. F.; Missiroli, M.; Moran, D.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Palencia Cortezon, E.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Cabrillo, I. J.; Calderon, A.; Castineiras De Saa, J. R.; De Castro Manzano, P.; Duarte Campderros, J.; Fernandez, M.; Garcia-Ferrero, J.; Gomez, G.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Trevisani, N.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, Santander, Spain. [Abbaneo, D.; Auffray, E.; Auzinger, G.; Bachtis, M.; Baillon, P.; Ball, A. H.; Barney, D.; Benaglia, A.; Bendavid, J.; Benhabib, L.; Benitez, J. F.; Berruti, G. M.; Bloch, P.; Bocci, A.; Bonato, A.; Botta, C.; Breuker, H.; Camporesi, T.; Castello, R.; Cerminara, G.; D'Alfonso, M.; d'Enterria, D.; Dabrowski, A.; Daponte, V.; David, A.; De Gruttola, M.; De Guio, F.; De Roeck, A.; De Visscher, S.; Di Marco, E.; Dobson, M.; Dordevic, M.; Dorney, B.; Du Pree, T.; Dunser, M.; Dupont, N.; Elliott-Peisert, A.; Franzoni, G.; Funk, W.; Gigi, D.; Gill, K.; Giordano, D.; Girone, M.; Glege, F.; Guida, R.; Gundacker, S.; Guthoff, M.; Hammer, J.; Harris, P.; Hegeman, J.; Innocente, V.; Janot, P.; Kirschenmann, H.; Kortelainen, M. J.; Kousouris, K.; Krajczar, K.; Lecoq, P.; Lourenco, C.; Lucchini, M. T.; Magini, N.; Malgeri, L.; Mannelli, M.; Martelli, A.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moortgat, F.; Morovic, S.; Mulders, M.; Nemallapudi, M. V.; Neugebauer, H.; Orfanelli, S.; Orsini, L.; Pape, L.; Perez, E.; Peruzzi, M.; Petrilli, A.; Petrucciani, G.; Pfeiffer, A.; Piparo, D.; Racz, A.; Rolandi, G.; Rovere, M.; Ruan, M.; Sakulin, H.; Schafer, C.; Schwick, C.; Sharma, A.; Silva, P.; Simon, M.; Sphicas, P.; Steggemann, J.; Stieger, B.; Stoye, M.; Takahashi, Y.; Treille, D.; Triossi, A.; Tsirou, A.; Veres, G. I.; Wardle, N.; Wohri, H. K.; Zagozdzinska, A.; Zeuner, W. D.] CERN, European Org Nucl Res, Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Kotlinski, D.; Langenegger, U.; Renker, D.; Rohe, T.] Paul Scherrer Inst, Villigen, Switzerland. [Bachmair, F.; Bani, L.; Bianchini, L.; Casal, B.; Dissertori, G.; Dittmar, M.; Donega, M.; Eller, P.; Grab, C.; Heidegger, C.; Hits, D.; Hoss, J.; Kasieczka, G.; Lustermann, W.; Mangano, B.; Marionneau, M.; del Arbol, P. Martinez Ruiz; Masciovecchio, M.; Meister, D.; Micheli, F.; Musella, P.; Nessi-Tedaldi, F.; Pandolfi, F.; Pata, J.; Pauss, F.; Perrozzi, L.; Quittnat, M.; Rossini, M.; Starodumov, A.; Takahashi, M.; Tavolaro, V. R.; Theofilatos, K.; Wallny, R.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aarrestad, T. K.; Amsler, C.; Caminada, L.; Canelli, M. F.; Chiochia, V.; De Cosa, A.; Galloni, C.; Hinzmann, A.; Hreus, T.; Kilminster, B.; Lange, C.; Ngadiuba, J.; Pinna, D.; Robmann, P.; Ronga, F. J.; Salerno, D.; Yang, Y.] Univ Zurich, Zurich, Switzerland. [Cardaci, M.; Chen, K. H.; Doan, T. H.; Jain, Sh.; Khurana, R.; Konyushikhin, M.; Kuo, C. M.; Lin, W.; Lu, Y. J.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan. [Kumar, Arun; Bartek, R.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Chen, P. H.; Dietz, C.; Fiori, F.; Grundler, U.; Hou, W. -S.; Hsiung, Y.; Liu, Y. F.; Lu, R. -S.; Moya, M. Minano; Petrakou, E.; Tsai, J. F.; Tzeng, Y. M.] Natl Taiwan Univ, Taipei, Taiwan. [Asavapibhop, B.; Kovitanggoon, K.; Singh, G.; Srimanobhas, N.; Suwonjandee, N.] Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok, Thailand. [Adiguzel, A.; Cerci, S.; Demiroglu, Z. S.; Dozen, C.; Dumanoglu, I.; Girgis, S.; Gok-Bulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Tali, B.; Topakli, H.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Bilin, B.; Bilmis, S.; Isildak, B.; Karapinar, G.; Yalvac, M.; Zeyrek, M.] Middle East Tech Univ, Dept Phys, Ankara, Turkey. [Gulmez, E.; Kaya, M.; Kaya, O.; Yetkin, E. A.; Yetkin, T.] Bogazici Univ, Istanbul, Turkey. [Cankocak, K.; Sen, S.; Vardarli, F. I.] Istanbul Tech Univ, Istanbul, Turkey. [Grynyov, B.] Natl Acad Sci Ukraine, Inst Scintillat Mat, Kharkov, Ukraine. [Levchuk, L.; Sorokin, P.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Aggleton, R.; Ball, F.; Beck, L.; Brooke, J. J.; Clement, E.; Cussans, D.; Flacher, H.; Goldstein, J.; Grimes, M.; Heath, G. P.; Heath, H. F.; Jacob, J.; Kreczko, L.; Lucas, C.; Meng, Z.; Newbold, D. M.; Paramesvaran, S.; Poll, A.; Sakuma, T.; El Nasr-Storey, S. Seif; Senkin, S.; Smith, D.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Bell, K. W.; Brew, C.; Brown, R. M.; Calligaris, L.; Cieri, D.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Olaiya, E.; Petyt, D.; Shepherd-Themistocleous, C. H.; Thea, A.; Tomalin, I. R.; Williams, T.; Womersley, W. J.; Worm, S. D.; Lucas, R.] Rutherford Appleton Lab, Didcot, Oxon, England. [Baber, M.; Bainbridge, R.; Buchmuller, O.; Bundock, A.; Burton, D.; Casasso, S.; Citron, M.; Colling, D.; Corpe, L.; Cripps, N.; Dauncey, P.; Davies, G.; De Wit, A.; Della Negra, M.; Dunne, P.; Elwood, A.; Ferguson, W.; Fulcher, J.; Futyan, D.; Hall, G.; Iles, G.; Kenzie, M.; Lane, R.; Lucas, R.; Lyons, L.; Magnan, A. -M.; Malik, S.; Nash, J.; Nikitenko, A.; Pela, J.; Pesaresi, M.; Petridis, K.; Raymond, D. M.; Richards, A.; Rose, A.; Seez, C.; Tapper, A.; Uchida, K.; Acosta, M. Vazquez; Virdee, T.; Zenz, S. C.] Imperial Coll, London, England. [Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leggat, D.; Leslie, D.; Reid, I. D.; Symonds, P.; Teodorescu, L.; Turner, M.] Brunel Univ, Uxbridge, Middx, England. [Borzou, A.; Call, K.; Dittmann, J.; Hatakeyama, K.; Kasmi, A.; Liu, H.; Pastika, N.] 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.; Gastler, D.; Lawson, P.; Rankin, D.; Richardson, C.; Rohlf, J.; John, J. St.; Sulak, L.; Zou, D.] Boston Univ, Boston, MA 02215 USA. [Bhattacharya, S.; Alimena, J.; Berry, E.; Cutts, D.; Dhingra, N.; Ferapontov, A.; Garabedian, A.; Hakala, J.; Heintz, U.; Laird, E.; Landsberg, G.; Mao, Z.; Narain, M.; Piperov, S.; Sagir, S.; Sinthuprasith, T.; Syarif, R.] Brown Univ, Providence, RI 02912 USA. [Chauhan, S.; Breedon, R.; Breto, G.; Sanchez, M. Calderon De la Barca; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Erbacher, R.; Gardner, M.; Ko, W.; Lander, R.; Mulhearn, M.; Pellett, D.; Pilot, J.; Ricci-Tam, F.; Shalhout, S.; Smith, J.; Squires, M.; Stolp, D.; Tripathi, M.; Wilbur, S.; Yohay, R.] Univ Calif Davis, Davis, CA 95616 USA. [Weber, M.; Cousins, R.; Everaerts, P.; Farrell, C.; Hauser, J.; Ignatenko, M.; Saltzberg, D.; Takasugi, E.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Burt, K.; Clare, R.; Ellison, J.; Gary, J. W.; Hanson, G.; Heilman, J.; Paneva, M. Ivova; Jandir, P.; Kennedy, E.; Lacroix, F.; Long, O. R.; Luthra, A.; Malberti, M.; Negrete, M. Olmedo; Shrinivas, A.; Wei, H.; Wimpenny, S.; Yates, B. R.] Univ Calif Riverside, Riverside, CA 92521 USA. [Sharma, V.; Branson, J. G.; Cerati, G. B.; Cittolin, S.; D'Agnolo, R. T.; Derdzinski, M.; Holzner, A.; Kelley, R.; Klein, D.; Letts, J.; Macneill, I.; Olivito, D.; Padhi, S.; Pieri, M.; Sani, M.; Simon, S.; Tadel, M.; Vartak, A.; Wasserbaech, S.; Welke, C.; Wurthwein, F.; Yagil, A.; Della Porta, G. Zevi] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bradmiller-Feld, J.; Campagnari, C.; Dishaw, A.; Dutta, V.; Flowers, K.; Sevilla, M. Franco; Geffert, P.; George, C.; Golf, F.; Gouskos, L.; Gran, J.; Incandela, J.; Justus, C.; Mccoll, N.; Mullin, S. D.; Richman, J.; Stuart, D.; Suarez, I.; To, W.; West, C.; Yoo, J.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Anderson, D.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Duarte, J.; Mott, A.; Newman, H. B.; Pena, C.; Pierini, M.; Spiropulu, M.; Vlimant, J. R.; Xie, S.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Andrews, M. B.; Azzolini, V.; Calamba, A.; Carlson, B.; Ferguson, T.; Paulini, M.; Russ, J.; Sun, M.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Ford, W. T.; Gaz, A.; Jensen, F.; Johnson, A.; Krohn, M.; Mulholland, T.; Nauenberg, U.; Stenson, K.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. [Alexander, J.; Chatterjee, A.; Chaves, J.; Chu, J.; Dittmer, S.; Eggert, N.; Mirman, N.; Kaufman, G. Nicolas; Patterson, J. R.; Rinkevicius, A.; Ryd, A.; Skinnari, L.; Soffi, L.; Sun, W.; Tan, S. M.; Teo, W. D.; Thom, J.; Thompson, J.; Tucker, J.; Weng, Y.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Banerjee, S.; Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bolla, G.; Burkett, K.; Butler, J. N.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Elvira, V. D.; Fisk, I.; Freeman, J.; Gottschalk, E.; Gray, L.; Green, D.; Grunendahl, S.; Gutsche, O.; Hanlon, J.; Hare, D.; Harris, R. M.; Hasegawa, S.; Hirschauer, J.; Hu, Z.; Jindariani, S.; Johnson, M.; Joshi, U.; Jung, A. W.; Klima, B.; Kreis, B.; Kwan, S.; Lammel, S.; Linacre, J.; Lincoln, D.; Lipton, R.; Liu, T.; De Sa, R. Lopes; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Outschoorn, V. I. Martinez; Maruyama, S.; Mason, D.; McBride, P.; Merkel, P.; Mishra, K.; Mrenna, S.; Nahn, S.; Newman-Holmes, C.; O'Dell, V.; Pedro, K.; Prokofyev, O.; Rakness, G.; Sexton-Kennedy, E.; Soha, A.; Spalding, W. J.; Spiegel, L.; Taylor, L.; Tkaczyk, S.; Tran, N. V.; Uplegger, L.; Vaandering, E. W.; Vernieri, C.; Verzocchi, M.; Vidal, R.; Weber, H. A.; Whitbeck, A.; Yang, F.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bortignon, P.; Bourilkov, D.; Carnes, A.; Carver, M.; Curry, D.; Das, S.; Di Giovanni, G. P.; Field, R. D.; Furic, I. K.; Gleyzer, S. V.; Hugon, J.; Konigsberg, J.; Korytov, A.; Low, J. F.; Ma, P.; Matchev, K.; Mei, H.; Milenovic, P.; Mitselmakher, G.; Rank, D.; Rossin, R.; Shchutska, L.; Snowball, M.; Sperka, D.; Terentyev, N.; Thomas, L.; Wang, J.; Wang, S.; Yelton, J.] Univ Florida, Gainesville, FL USA. [Hewamanage, S.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Ackert, A.; Adams, J. R.; Adams, T.; Askew, A.; Bochenek, J.; Diamond, B.; Haas, J.; Hagopian, S.; Hagopian, V.; Johnson, K. F.; Khatiwada, A.; Prosper, H.; Weinberg, M.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Bhopatkar, V.; Colafranceschi, S.; Hohlmann, M.; Kalakhety, H.; Noonan, D.; Roy, T.; Yumiceva, F.] Florida Inst Technol, Melbourne, FL 32901 USA. [Abdulsalam, A.; Adams, M. R.; Apanasevich, L.; Berry, D.; Betts, R. R.; Bucinskaite, I.; Cavanaugh, R.; Evdokimov, O.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Kurt, P.; O'Brien, C.; Gonzalez, I. D. Sandoval; Silkworth, C.; Turner, P.; Varelas, N.; Wu, Z.; Zakaria, M.] Univ Illinois, Chicago, IL USA. [Bilki, B.; Clarida, W.; Dilsiz, K.; Durgut, S.; Gandrajula, R. P.; Haytmyradov, M.; Khristenko, V.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Ogul, H.; Onel, Y.; Ozok, F.; Penzo, A.; Snyder, C.; Tiras, E.; Wetzel, J.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Anderson, I.; Barnett, B. A.; Blumenfeld, B.; Eminizer, N.; Fehling, D.; Feng, L.; Gritsan, A. V.; Maksimovic, P.; Martin, C.; Osherson, M.; Roskes, J.; Sady, A.; Sarica, U.; Swartz, M.; Xiao, M.; Xin, Y.; You, C.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Bruner, C.; Kenny, R. P., III; Majumder, D.; Malek, M.; Murray, M.; Sanders, S.; Stringer, R.; Wang, Q.] Univ Kansas, Lawrence, KS 66045 USA. [Ivanov, A.; Kaadze, K.; Khalil, S.; Makouski, M.; Maravin, Y.; Mohammadi, A.; Saini, L. K.; Skhirtladze, N.; Toda, S.] Kansas State Univ, Manhattan, KS 66506 USA. [Lange, D.; Rebassoo, F.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Anelli, C.; Baden, A.; Baron, O.; Belloni, A.; Calvert, B.; Eno, S. C.; Ferraioli, C.; Gomez, J. A.; Hadley, N. J.; Jabeen, S.; Kellogg, R. G.; Kolberg, T.; Kunkle, J.; Lu, Y.; Mignerey, A. C.; Shin, Y. H.; Skuja, A.; Tonjes, M. B.; Tonwar, S. C.] Univ Maryland, College Pk, MD 20742 USA. [Wang, J.; Apyan, A.; Barbieri, R.; Baty, A.; Bierwagen, K.; Brandt, S.; Busza, W.; Cali, I. A.; Demiragli, Z.; Di Matteo, L.; Ceballos, G. Gomez; Goncharov, M.; Gulhan, D.; Iiyama, Y.; Innocenti, G. M.; Klute, M.; Kovalskyi, D.; Lai, Y. S.; Lee, Y. -J.; Levin, A.; Luckey, P. D.; Marini, A. C.; Mcginn, C.; Mironov, C.; Narayanan, S.; Niu, X.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Salfeld-Nebgen, J.; Stephans, G. S. F.; Sumorok, K.; Varma, M.; Velicanu, D.; Veverka, J.; Wang, T. W.; Wyslouch, B.; Yang, M.; Zhukova, V.] MIT, Cambridge, MA 02139 USA. [Dahmes, B.; Evans, A.; Finkel, A.; Gude, A.; Hansen, P.; Kalafut, S.; Kao, S. C.; Klapoetke, K.; Kubota, Y.; Lesko, Z.; Mans, J.; Nourbakhsh, S.; Ruckstuhl, N.; Rusack, R.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA. [Acosta, J. G.; Oliveros, S.] Univ Mississippi, University, MS 38677 USA. [Avdeeva, E.; Bloom, K.; Bose, S.; Claes, D. R.; Dominguez, A.; Fangmeier, C.; Suarez, R. Gonzalez; Kamalieddin, R.; Keller, J.; Knowlton, D.; Kravchenko, I.; Lazo-Flores, J.; Meier, F.; Monroy, J.; Ratnikov, F.; Siado, J. E.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Kumar, A.; Alyari, M.; Dolen, J.; George, J.; Godshalk, A.; Harrington, C.; Iashvili, I.; Kaisen, J.; Kharchilava, A.; Rappoccio, S.; Roozbahani, B.] SUNY Buffalo, Buffalo, NY USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Chasco, M.; Hortiangtham, A.; Massironi, A.; Morse, D. M.; Nash, D.; Orimoto, T.; De Lima, R. Teixeira; Trocino, D.; Wang, R. -J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Hahn, K. A.; Kubik, A.; Mucia, N.; Odell, N.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Sung, K.; Trovato, M.; Velasco, M.] Northwestern Univ, Evanston, IL USA. [Brinkerhoff, A.; Dev, N.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kellams, N.; Lannon, K.; Lynch, S.; Marinelli, N.; Meng, F.; Mueller, C.; Musienko, Y.; Pearson, T.; Planer, M.; Reinsvold, A.; Ruchti, R.; Smith, G.; Taroni, S.; Valls, N.; Wayne, M.; Wolf, M.; Woodard, A.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Abdulsalam, A.; Antonelli, L.; Brinson, J.; Bylsma, B.; Durkin, L. S.; Flowers, S.; Hart, A.; Hill, C.; Hughes, R.; Ji, W.; Kotov, K.; Ling, T. Y.; Liu, B.; Luo, W.; Puigh, D.; Rodenburg, M.; Winer, B. L.; Wulsin, H. W.] Ohio State Univ, Columbus, OH 43210 USA. [Driga, O.; Elmer, P.; Hardenbrook, J.; Hebda, P.; Koay, S. A.; Lujan, P.; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Palmer, C.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Malik, S.] Univ Puerto Rico, Mayaguez, PR USA. [Savoy-Navarro, A.; Barnes, V. E.; Benedetti, D.; Bortoletto, D.; Gutay, L.; Jha, M. K.; Jones, M.; Jung, K.; Miller, D. H.; Neumeister, N.; Radburn-Smith, B. C.; Shi, X.; Shipsey, I.; Silvers, D.; Sun, J.; Svyatkovskiy, A.; Wang, F.; Xie, W.; Xu, L.] Purdue Univ, W Lafayette, IN 47907 USA. [Parashar, N.; Stupak, J.] Purdue Univ Calumet, Hammond, LA USA. [Adair, A.; Akgun, B.; Chen, Z.; Ecklund, K. M.; Geurts, F. J. M.; Guilbaud, M.; Li, W.; Michlin, B.; Northup, M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Rorie, J.; Tu, Z.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Ferbel, T.; Galanti, M.; Garcia-Bellido, A.; Han, J.; Harel, A.; Hindrichs, O.; Khukhunaishvili, A.; Petrillo, G.; Tan, P.; Verzetti, M.] Univ Rochester, Rochester, NY 14627 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.; Hughes, E.; Kaplan, S.; Elayavalli, R. Kunnawalkam; Lath, A.; Nash, K.; Panwalkar, S.; Park, M.; Salur, S.; Schnetzer, S.; Sheffield, D.; Somalwar, S.; Stone, R.; Thomas, S.; Thomassen, P.; Walker, M.] Rutgers State Univ, Piscataway, NJ USA. [Rose, A.; Foerster, M.; Riley, G.; Spanier, S.; York, A.] Univ Tennessee, Knoxville, TN USA. [Rose, A.; Bouhali, O.; Hernandez, A. Castaneda; Dalchenko, M.; De Mattia, M.; Delgado, A.; Dildick, S.; Eusebi, R.; Gilmore, J.; Kamon, T.; Krutelyov, V.; Mueller, R.; Osipenkov, I.; Pakhotin, Y.; Patel, R.; Perloff, A.; Safonov, A.; Tatarinov, A.; Ulmer, K. A.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Cowden, C.; Damgov, J.; Dragoiu, C.; Dudero, P. R.; Faulkner, J.; Kunori, S.; Lamichhane, K.; Lee, S. W.; Libeiro, T.; Undleeb, S.; Volobouev, I.] Texas Tech Univ, Lubbock, TX 79409 USA. [Mao, Y.; Appelt, E.; Delannoy, A. G.; Greene, S.; Gurrola, A.; Janjam, R.; Johns, W.; Maguire, C.; Melo, A.; Ni, H.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.; Xu, Q.] Vanderbilt Univ, 221 Kirkland Hall, Nashville, TN 37235 USA. [Arenton, M. W.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Li, H.; Lin, C.; Neu, C.; Sun, X.; Wang, Y.; Wolfe, E.; Wood, J.; Xia, F.] Univ Virginia, Charlottesville, VA USA. [Clarke, C.; Harr, R.; Karchin, P. E.; Don, C. Kottachchi Kankanamge; Lamichhane, P.; Sturdy, J.] Wayne State Univ, Detroit, MI USA. [Abdulsalam, A.; Sharma, A.; Belknap, D. A.; Carlsmith, D.; Cepeda, M.; Dasu, S.; Dodd, L.; Duric, S.; Friis, E.; Gomber, B.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Lanaro, A.; Levine, A.; Long, K.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Perry, T.; Pierro, G. A.; Polese, G.; Ruggles, T.; Sarangi, T.; Savin, A.; Smith, N.; Smith, W. H.; Taylor, D.; Woods, N.] Univ Wisconsin, Madison, WI 53706 USA. [Fruhwirth, R.; Jeitler, M.; Krammer, M.; Schieck, J.; Wulz, C. -E.] Vienna Univ Technol, Vienna, Austria. [Rabady, D.; Merlin, J. A.; Lingemann, J.; Pantaleo, F.; Hartmann, F.; Kornmayer, A.; Mohanty, A. K.; Silvestris, L.; Battilana, C.; Viliani, L.; Marzocchi, B.; Meola, S.; Paolucci, P.; Azzi, P.; Dall'Osso, M.; Zucchetta, A.; Ciangottini, D.; Donato, S.; Savoy-Navarro, A.; D'imperio, G.; Traczyk, P.; Arcidiacono, R.; Finco, L.; Candelise, V.; Guida, R.; Ulmer, K. A.] CERN, European Org Nucl Res, Geneva, Switzerland. [Chinellato, J.; Tonelli Manganote, E. J.] Univ Estadual Campinas, Campinas, Brazil. [Moon, C. S.] CNRS, IN2P3, Paris, France. [Assran, Y.] Suez Univ, Suez, Egypt. [El Sawy, M.] Beni Suef Univ, Bani Sweif, Egypt. [El Sawy, M.; Elgammal, S.] British Univ Egypt, Cairo, Egypt. [Kamel, A. Ellithi] Cairo Univ, Cairo, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Agram, J. -L.; Conte, E.; Fontaine, J. -C.] Univ Haute Alsace, Mulhouse, France. [Hempel, M.; Karacheban, O.; Lohmann, W.; Marfin, I.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary. [Bhowmik, S.; Maity, M.; Sarkar, T.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Gurtu, A.] King Abdulaziz Univ, Jeddah, Saudi Arabia. [Wickramage, N.] Univ Ruhuna, Matara, Sri Lanka. [Etesami, S. M.] Isfahan Univ Technol, Esfahan, Iran. [Fahim, A.] Univ Tehran, Dept Engn Sci, Tehran, Iran. [Safarzadeh, B.] Islamic Azad Univ, Plasma Phys Res Ctr, Sci & Res Branch, Tehran, Iran. [Androsov, K.; Ciocci, M. A.; Grippo, M. T.] Univ Siena, Siena, Italy. [Ali, M. A. B. Md] Int Islamic Univ Malaysia, Kuala Lumpur, Malaysia. [Idris, F. Mohamad] MOSTI, Malaysian Nucl Agcy, Kajang, Malaysia. [Heredia-De La Cruz, I.] Consejo Nacl Ciencia & Technol, Mexico City, DF, Mexico. [Byszuk, A.; Zagozdzinska, A.] Warsaw Univ Technol, Inst Elect Syst, Warsaw, Poland. [Kim, V.] St Petersburg State Polytechn Univ, St Petersburg, Russia. [Orfanelli, S.] Natl Tech Univ Athens, Athens, Greece. [Rolandi, G.] Ist Nazl Fis Nucl, Scuola Normale & Sez, Pisa, Italy. [Amsler, C.] Albert Einstein Ctr Fundamental Phys, Bern, Switzerland. [Cerci, S.; Tali, B.] Adiyaman Univ, Adiyaman, Turkey. [Kangal, E. E.] Mersin Univ, Mersin, Turkey. [Onengut, G.] Cag Univ, Mersin, Turkey. [Ozdemir, K.] Piri Reis Univ, Istanbul, Turkey. [Ozturk, S.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Isildak, B.] Ozyegin Univ, Istanbul, Turkey. [Karapinar, G.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.] Marmara Univ, Istanbul, Turkey. [Kaya, O.] Kafkas Univ, Kars, Turkey. [Yetkin, E. A.] Mimar Sinan Univ, Istanbul, Turkey. [Yetkin, T.] Yildiz Tech Univ, Istanbul, Turkey. [Sen, S.] Hacettepe Univ, Ankara, Turkey. Univ Southampton, Sch Phys & Astron, Southampton, Hants, England. [Acosta, M. Vazquez] Inst Astrofis Canarias, San Cristobal la Laguna, Spain. [Wasserbaech, S.] Utah Valley Univ, Orem, UT USA. Univ Belgrade, Belgrade, Serbia. [Colafranceschi, S.] Univ Roma, Fac Ingn, Rome, Italy. [Bilki, B.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey. [Bouhali, O.] Texas A&M Univ Qatar, Doha, Qatar. RP Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan, Armenia. RI Ogul, Hasan/S-7951-2016; Dremin, Igor/K-8053-2015; Azarkin, Maxim/N-2578-2015; Kirakosyan, Martin/N-2701-2015; Puljak, Ivica/D-8917-2017; Varela, Joao/K-4829-2016; Flix, Josep/G-5414-2012; Nguyen, Federico/Q-8994-2016; Ruiz, Alberto/E-4473-2011; Petrushanko, Sergey/D-6880-2012; Dudko, Lev/D-7127-2012; Govoni, Pietro/K-9619-2016; Petkov, Peicho/M-2080-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Leonidov, Andrey/M-4440-2013; Paulini, Manfred/N-7794-2014; Smirnov, Vitaly/B-5001-2017; Moraes, Arthur/F-6478-2010; Manganote, Edmilson/K-8251-2013; Colafranceschi, Stefano/M-1807-2016; TUVE', Cristina/P-3933-2015; Raidal, Martti/F-4436-2012; Konecki, Marcin/G-4164-2015; Vogel, Helmut/N-8882-2014; Benussi, Luigi/O-9684-2014; Andreev, Vladimir/M-8665-2015; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Calderon, Alicia/K-3658-2014; Goh, Junghwan/Q-3720-2016; Lokhtin, Igor/D-7004-2012; Mora Herrera, Maria Clemencia/L-3893-2016; Della Ricca, Giuseppe/B-6826-2013; Mundim, Luiz/A-1291-2012; Verwilligen, Piet/M-2968-2014; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; VARDARLI, Fuat Ilkehan/B-6360-2013; Da Silveira, Gustavo Gil/N-7279-2014; Stahl, Achim/E-8846-2011 OI Ogul, Hasan/0000-0002-5121-2893; Varela, Joao/0000-0003-2613-3146; Flix, Josep/0000-0003-2688-8047; Nguyen, Federico/0000-0002-6713-1596; Ruiz, Alberto/0000-0002-3639-0368; Dudko, Lev/0000-0002-4462-3192; Govoni, Pietro/0000-0002-0227-1301; Petkov, Peicho/0000-0002-0420-9480; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Moraes, Arthur/0000-0002-5157-5686; TUVE', Cristina/0000-0003-0739-3153; Konecki, Marcin/0000-0001-9482-4841; Vogel, Helmut/0000-0002-6109-3023; Benussi, Luigi/0000-0002-2363-8889; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Da Silveira, Gustavo Gil/0000-0003-3514-7056; Stahl, Achim/0000-0002-8369-7506 FU BMWFW (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); MoER (Estonia); ERC IUT (Estonia); 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); NIH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP (Republic of Korea); NRF (Republic of Korea); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Dubna); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter (Thailand); IPST (Thailand); STAR (Thailand); NSTDA (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); SFFR (Ukraine); STFC (United Kingdom); DOE (U.S.A.); NSF (U.S.A.); Marie-Curie program; European Research Council; EPLANET (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Council of Science and Industrial Research, India; HOMING PLUS program of the Foundation for Polish Science; European Union, Regional Development Fund; OPUS program of the National Science Center (Poland); Compagnia di San Paolo (Torino); Consorzio per la Fisica (Trieste); MIUR project (Italy) [20108T4XTM]; Thalis and Aristeia programs; EU-ESF; Greek NSRF; National Priorities Research Program by Qatar National Research Fund; Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); Welch Foundation [C-1845] 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: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.A.).; Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the OPUS program of the National Science Center (Poland); the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the National Priorities Research Program by Qatar National Research Fund; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand); and the Welch Foundation, contract C-1845. NR 58 TC 1 Z9 1 U1 21 U2 42 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD JUN 30 PY 2016 IS 6 AR 177 DI 10.1007/JHEP06(2016)177 PG 48 WC Physics, Particles & Fields SC Physics GA DQ9BL UT WOS:000379505300001 ER PT J AU Sjolander, TF Tayler, MCD King, JP Budker, D Pines, A AF Sjolander, Tobias F. Tayler, Michael C. D. King, Jonathan P. Budker, Dmitry Pines, Alexander TI Transition-Selective Pulses in Zero-Field Nuclear Magnetic Resonance SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID ATOMIC MAGNETOMETER; STATE NMR; SPECTROSCOPY; HOMONUCLEAR AB We use low-amplitude, ultralow frequency pulses to drive nuclear spin transitions in zero and ultralow magnetic fields. In analogy to high-field NMR, a range of sophisticated experiments becomes available as these allow narrow-band excitation. As a first demonstration, pulses with excitation bandwidths 0.5-5 Hz are used for population redistribution, selective excitation, and coherence filtration. These methods are helpful when interpreting zero- and ultralow-field NMR spectra that contain a large number of transitions. C1 [Sjolander, Tobias F.; King, Jonathan P.; Pines, Alexander] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Tayler, Michael C. D.; Budker, Dmitry] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Tayler, Michael C. D.] Univ Cambridge, Dept Chem Engn & Biotechnol, Magnet Resonance Res Ctr, Pembroke St, Cambridge CB2 3RA, England. [King, Jonathan P.; Budker, Dmitry; Pines, Alexander] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Budker, Dmitry] Johannes Gutenberg Univ Mainz, Helmholtz Inst Mainz, D-55099 Mainz, Germany. RP Sjolander, TF (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Budker, D (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM tobias_sjolander@berkeley.edu; budker@uni-mainz.de FU National Science Foundation [CHE-1308381]; Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; European Commission under the Marie Curie International Outgoing Fellowship Programme [FP7-625054 ODMR-CHEM] FX The authors thank J. W. Blanchard for helpful discussions. This work was supported by the National Science Foundation under award CHE-1308381 and in part by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 (IRK). This work was supported by the European Commission under the Marie Curie International Outgoing Fellowship Programme (author MCDT, project FP7-625054 ODMR-CHEM). Contents of the work do not reflect the views of the university or the European Commission. NR 39 TC 1 Z9 1 U1 3 U2 8 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 30 PY 2016 VL 120 IS 25 BP 4343 EP 4348 DI 10.1021/acs.jpca.6b04017 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DQ8JG UT WOS:000379456300010 PM 27243376 ER PT J AU Kazemiabnavi, S Zhang, ZC Thornton, K Banerjee, S AF Kazemiabnavi, Saeed Zhang, Zhengcheng Thornton, Katsuyo Banerjee, Soumik TI Electrochemical Stability Window of Imidazolium-Based Ionic Liquids as Electrolytes for Lithium Batteries SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID DENSITY-FUNCTIONAL THEORY; SOLVATION FREE-ENERGIES; MIXED CLUSTER/CONTINUUM MODELS; AB-INITIO; OXIDATION POTENTIALS; AIR BATTERY; WATER; BIS(FLUOROSULFONYL)IMIDE; LINI0.5MN1.5O4; SOLVENTS AB This paper presents the computational assessment of the electrochemical stability of a series of alkyl methylimidazolium-based ionic liquids for their use as lithium battery electrolytes. The oxidation and reduction potentials of the constituent cation and anion of each ionic liquid with respect to a Li+/Li reference electrode were calculated using density functional theory following the method of thermodynamic cycles, and the electrochemical stability windows (ESW)s of these ionic liquids were obtained. The effect of varying the length of alkyl side chains of the methylimidazolium-based cations on the redox potentials and ESWs was investigated. The results show that the limits of the ESWs of these methylimidazolium-based ionic liquids are defined by the oxidation potential of the anions and the reduction potential of alkyl-methylimidazolium cations. Moreover, ionic liquids with [PF6](-) anion have a wider ESW. In addition to characterizing structure-function relationships, the accuracy of the computational approach was assessed through comparisons of the data against experimental measurements of ESWs. The potentials calculated by the thermodynamic cycle method are in good agreement with the experimental data while the HOMO/LUMO method overestimates the redox potentials. This work demonstrates that these approaches can provide guidance in selecting ionic liquid electrolytes when designing high-voltage rechargeable batteries. C1 [Kazemiabnavi, Saeed; Thornton, Katsuyo] Univ Michigan, Joint Ctr Energy Storage Res, Ann Arbor, MI 48109 USA. [Kazemiabnavi, Saeed] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA. [Zhang, Zhengcheng] Argonne Natl Lab, Chem Sci & Engn Div, 9700 South Cass Ave, Argonne, IL 60439 USA. [Thornton, Katsuyo] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA. [Banerjee, Soumik] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA. RP Banerjee, S (reprint author), Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA. EM soumik.banerjee@wsu.edu RI Kazemiabnavi, Saeed/L-6607-2016; OI Kazemiabnavi, Saeed/0000-0003-2409-709X; /0000-0002-1227-5293 FU Joint Center for Energy Storage Research, an Energy Innovation Hub - U.S. Department of Energy, Office of Science, Basic Energy Sciences FX This work was supported as part of the Joint Center for Energy Storage Research, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences. This research used resources of Washington State University's High Performance Computing Cluster and University of Michigan's Advanced Research Computing for carrying out the simulations. NR 47 TC 2 Z9 2 U1 21 U2 42 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 30 PY 2016 VL 120 IS 25 BP 5691 EP 5702 DI 10.1021/acs.jpcb.6b03433 PG 12 WC Chemistry, Physical SC Chemistry GA DQ8JF UT WOS:000379456200011 PM 27266487 ER PT J AU Jimenez-Orozco, C Florez, E Moreno, A Liu, P Rodriguez, JA AF Jimenez-Orozco, Carlos Florez, Elizabeth Moreno, Andres Liu, Ping Rodriguez, Jose A. TI Systematic Theoretical Study of Ethylene Adsorption on delta-MoC(001), TiC(001), and ZrC(001) Surfaces SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID DENSITY-FUNCTIONAL THEORY; TRANSITION-METAL CARBIDES; GAS-SHIFT REACTION; AU-C INTERACTIONS; MOLYBDENUM CARBIDE; TUNGSTEN CARBIDE; TEMPERATURE ADSORPTION; ETHANE HYDROGENOLYSIS; CHARGE POLARIZATION; HYDROGENATION AB A systematic study of ethylene adsorption over delta-MoC(001), TiC(001), and ZrC(001) surfaces was conducted by means of calculations based on periodic density functional theory. The structure and electronic properties of each carbide pristine surface had a strong influence in the bonding of ethylene. It was found that the metal and carbon sites of the carbide could participate in the adsorption process. As a consequence of this, very different bonding mechanisms were seen on delta-MoC(001) and TiC(001). The bonding of the molecule on the TMC(001) systems showed only minor similarities to the type of bonding found on a typical metal like Pt(111). In general, the ethylene binding energy follow the trend in stability: ZrC(001) < TiC(001) < delta-MoC(001) < Pt(111). The van der Waals correction to the energy produces large binding energy values, modifies the stability orders and drives the ethylene closer to the surface but the adsorbate geometry parameters remain unchanged. Ethylene was activated on clearly defined binding geometries, changing its hybridization from sp(2) to sp(3) with an elongation (0.16-0.31 angstrom) of the C=C bond. On the basis of this theoretical study, delta-MoC(001) is proposed as a potential catalyst for the hydrogenation of olefins, whereas TiC(001) could be useful for their hydrogenolysis. C1 [Jimenez-Orozco, Carlos; Moreno, Andres] Univ Antioquia UdeA, Fac Ciencias Exactas & Nat, Inst Quim, Quim Recursos Energet & Medio Ambiente, Calle 70 52-21, Medellin, Colombia. [Florez, Elizabeth] Univ Medellin, Dept Ciencias Basicas, Carrera 87 30-65, Medellin, Colombia. [Liu, Ping; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM rodrigez@bnl.gov FU U.S. DOE Office of Science [DE-SC0012704]; Colombian National Science Foundation (COLCIENCIAS) FX Part of this research was carried out at Brookhaven National Laboratory in the Chemistry Department and the calculations were performed using the computer facility at the Center for Functional Nanomaterials, which is a user facility of U.S. DOE Office of Science, under Contract No. DE-SC0012704. C.J.-O. and A.M. thank to the "Programa Sostenibilidad" from Universidad de Antioquia. C.J.-O. acknowledges his Ph.D. scholarship provided by the Colombian National Science Foundation (COLCIENCIAS). NR 58 TC 2 Z9 2 U1 16 U2 20 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 30 PY 2016 VL 120 IS 25 BP 13531 EP 13540 DI 10.1021/acs.jpcc.6b03106 PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DQ8JK UT WOS:000379456800026 ER PT J AU Narayanan, B Kinaci, A Sen, FG Davis, MJ Gray, SK Chan, MKY Sankaranarayanan, SKRS AF Narayanan, Badri Kinaci, Alper Sen, Fatih G. Davis, Michael J. Gray, Stephen K. Chan, Maria K. Y. Sankaranarayanan, Subramanian K. R. S. TI Describing the Diverse Geometries of Gold from Nanoclusters to Bulk-A First-Principles-Based Hybrid Bond-Order Potential SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TRANSITION-METAL CLUSTERS; TOTAL-ENERGY CALCULATIONS; EMBEDDED-ATOM-METHOD; WAVE BASIS-SET; INTERATOMIC POTENTIALS; MOLECULAR-DYNAMICS; NOBLE; TEMPERATURE; COALESCENCE; CHEMISTRY AB Molecular dynamics simulations using empirical force fields (EFFs) are crucial for gaining fundamental insights into atomic structure and long time scale dynamics of Au nanoclusters with far-reaching applications in energy and devices. This approach is thwarted by the failure of currently available EFFs in describing the size dependent dimensionality and diverse geometries exhibited by Au dusters (e.g., planar structures, hollow cages, tubes, pyramids, space-filled structures). Here, we mitigate this issue by introducing a new hybrid bond-order potential (HyBOP), which accounts for (a) short-range interactions via Tersoff-type BOP terms that accurately treat bond directionality and (b) long-range dispersion effects by a scaled Lennard Jones term whose contribution depends on the local atomic density. We optimized the independent parameters for our HyBOP using a global optimization scheme driven by genetic algorithms. Moreover, to ensure good transferability of these parameters across different length scales, we used an extensive training data set that encompasses structural and energetic properties of 1000 13-atom Au clusters, surface energies, as well as bulk polymorphs, obtained from density functional theory (DFT) calculations. Our newly developed HyBOP has been found to accurately describe (a) global minimum energy configurations at different cluster sizes as well as order of stability of various cluster configurations at any size, (b) critical size of transition from planar to globular dusters, (c) evolution of structural motifs with duster size, and (c) thermodynamics, structure, elastic properties, and energetic ordering of bulk condensed phases as well as surfaces, in excellent agreement with DFT calculations and spectroscopic experiments. This makes our newly developed HyBOP a valuable, computationally robust but inexpensive tool for investigating a wide range of materials phenomena occurring in Au at the atomistic level. C1 [Narayanan, Badri; Kinaci, Alper; Sen, Fatih G.; Gray, Stephen K.; Chan, Maria K. Y.; Sankaranarayanan, Subramanian K. R. S.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Lemont, IL 60439 USA. [Davis, Michael J.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA. RP Chan, MKY; Sankaranarayanan, SKRS (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Lemont, IL 60439 USA. EM mchan@anl.gov; skrssank@anl.gov OI Narayanan, Badri/0000-0001-8147-1047 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX We acknowledge C. Wolverton and J. Greeley for helpful discussions regarding the use of the genetic algorithm for force field fitting. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. We gratefully acknowledge the computing resources provided on Blues and Fusion, high-performance computing clusters operated by the Laboratory Computing Resource Center at Argonne National Laboratory. NR 68 TC 3 Z9 3 U1 10 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 30 PY 2016 VL 120 IS 25 BP 13787 EP 13800 DI 10.1021/acs.jpcc.6b02934 PG 14 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DQ8JK UT WOS:000379456800055 ER PT J AU Campbell, JM Ellis, RK Williams, C AF Campbell, John M. Ellis, R. Keith Williams, Ciaran TI Associated production of a Higgs boson at NNLO SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Higgs Physics; Perturbative QCD ID JET CROSS-SECTIONS; HADRON COLLIDERS; DRELL-YAN; ASYMPTOTIC EXPANSIONS; QCD CORRECTIONS; STANDARD MODEL; STRAHLUNG; LHC; SUBTRACTION; PARTICLE AB In this paper we present a Next-to-Next-to Leading Order (NNLO) calculation of the production of a Higgs boson in association with a massive vector boson. We include the decays of the unstable Higgs and vector bosons, resulting in a fully flexible parton-level Monte Carlo implementation. We also include all O(alpha(2)(s)) contributions that occur in production for these processes: those mediated by the exchange of a single off-shell vector boson in the s-channel, and those which arise from the coupling of the Higgs boson to a closed loop of fermions. We study final states of interest for Run II phenomenology, namely H -> b (b) over bar, gamma gamma and WW*. The treatment of the H -> b (b) over bar decay includes QCD corrections at NLO. We use the recently developed N-jettiness regularization procedure, and study its viability in the presence of a large final-state phase space by studying pp -> V(H -> WW*) -> leptons. C1 [Campbell, John M.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Ellis, R. Keith] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England. [Williams, Ciaran] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA. RP Campbell, JM (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM johnmc@fnal.gov; keith.ellis@durham.ac.uk; ciaranwi@buffalo.edu FU US DOE [DE-AC02-07CH11359]; Center for Computational Research at the University at Buffalo FX We thank Radja Boughezal, Xiaohui Liu and Frank Petriello for assisting in the implementation of the N-jettiness regularization procedure in MCFM. CW thanks Shawn Matott for computational help and JC is grateful to the Fermilab computing sector for providing access to the Accelerator Simulations Cluster. Fermilab is supported by the US DOE under contract DE-AC02-07CH11359. Support provided by the Center for Computational Research at the University at Buffalo. NR 83 TC 3 Z9 3 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD JUN 30 PY 2016 IS 6 AR 179 DI 10.1007/JHEP06(2016)179 PG 32 WC Physics, Particles & Fields SC Physics GA DQ2MQ UT WOS:000379036800002 ER PT J AU Wang, L Qian, Y Zhang, YC Zhao, C Leung, LR Huang, AN Xiao, CL AF Wang, Lei Qian, Yun Zhang, Yaocun Zhao, Chun Leung, L. Ruby Huang, Anning Xiao, Chuliang TI Observed variability of summer precipitation pattern and extreme events in East China associated with variations of the East Asian summer monsoon SO INTERNATIONAL JOURNAL OF CLIMATOLOGY LA English DT Article DE precipitation pattern; extreme event; East Asia; summer monsoon ID SEA-SURFACE TEMPERATURE; DAILY CLIMATE EXTREMES; ATMOSPHERIC CIRCULATION; DECADAL VARIATION; PART I; RAINFALL; IMPACTS; FEATURES; WEATHER; SYSTEM AB This article presents a comprehensive analysis of interannual and interdecadal variations of summer precipitation and precipitation-related extreme events in East China associated with variations of the East Asian summer monsoon (EASM) from 1979 to 2012. A high-quality daily precipitation data set covering 2076 observational stations in China is analysed. Based on the precipitation pattern analysis using empirical orthogonal functions and the regime shift detection method, three sub-periods of 1979-1992 (period I), 1993-1999 (period II) and 2000-2012 (period III) are identified to be representative of the precipitation variability. Similar significant variability of the extreme precipitation indices is found across four sub-regions in eastern China. The spatial patterns of summer mean precipitation, the number of days with daily rainfall exceeding 95th percentile precipitation (R95p) and the maximum number of consecutive wet days (CWD) anomalies are consistent, but opposite to that of maximum consecutive dry days (CDD) anomalies to some extent during the three sub-periods. However, the spatial patterns of hydroclimatic intensity (HY-INT) are notably different from that of the other three extreme indices, but highly correlated to the dry events. The changes of precipitation anomaly patterns are accompanied by the change of the EASM regime and the abrupt shift of the position of the west Pacific subtropical high around 1992/1993 and 1999/2000, respectively, which influence the moisture transport and contributes to the precipitation anomalies. In addition, the EASM intensity is linked to sea surface temperature anomaly over the tropical Indian and Pacific Ocean through its effects on convective activity over the west Pacific that induces the cyclonic or anticyclonic anomaly over the South China and northwest Pacific. C1 [Wang, Lei; Zhang, Yaocun; Huang, Anning] Nanjing Univ, Sch Atmospher Sci, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China. [Wang, Lei; Qian, Yun; Zhao, Chun; Leung, L. Ruby] Pacific NW Natl Lab, Richland, WA 99352 USA. [Xiao, Chuliang] Univ Michigan, Cooperat Inst Limnol & Ecosyst Res, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA. RP Zhang, YC (reprint author), Nanjing Univ, Sch Atmospher Sci, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China. EM yczhang@nju.edu.cn RI qian, yun/E-1845-2011; Xiao, Chuliang/D-3612-2013 OI Xiao, Chuliang/0000-0002-8466-9398 FU National Basic Research Program of China (973 Program) [2012CB955901]; Jiangsu Collaborative Innovation Center for Climate Change; US Department of Energy Office of Science Biological and Environmental Research as part of the Regional and Global Climate Modeling Program; DOE [DE-AC05-76RL01830] FX This work was supported by the National Basic Research Program of China (973 Program, grant 2012CB955901) and the Jiangsu Collaborative Innovation Center for Climate Change. YQ, CZ and LRL were supported by the US Department of Energy Office of Science Biological and Environmental Research as part of the Regional and Global Climate Modeling Program. The Pacific Northwest National Laboratory is operated for DOE by Battelle Memorial Institute under contract DE-AC05-76RL01830. NR 69 TC 1 Z9 1 U1 7 U2 17 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0899-8418 EI 1097-0088 J9 INT J CLIMATOL JI Int. J. Climatol. PD JUN 30 PY 2016 VL 36 IS 8 BP 2942 EP 2957 DI 10.1002/joc.4530 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DP8UK UT WOS:000378773200010 ER PT J AU Burnell, F Chen, X Kitaev, A Metlitski, M Vishwanath, A AF Burnell, Fiona Chen, Xie Kitaev, Alexei Metlitski, Max Vishwanath, Ashvin TI Time reversal invariant gapped boundaries of the double semion state SO PHYSICAL REVIEW B LA English DT Article ID QUANTUM HALL STATES; TOPOLOGICAL PHASES AB The boundary of a fractionalized topological phase can be gapped by condensing a proper set of bosonic quasiparticles. Interestingly, in the presence of a global symmetry, such a boundary can have different symmetry transformation properties. Here we present an explicit example of this kind, in the double semion state with time reversal symmetry. We find two distinct cases where the semionic excitations on the boundary can transform either as time reversal singlets or as time reversal (Kramers) doublets, depending on the coherent phase factor of the Bose condensate. The existence of these two possibilities are demonstrated using both field-theory argument and exactly solvable lattice models. Furthermore, we study the domain walls between these two types of gapped boundaries and find that the application of time reversal symmetry tunnels a semion between them. C1 [Burnell, Fiona] Univ Minnesota, Dept Phys & Astron, Minneapolis, MN 55455 USA. [Chen, Xie; Kitaev, Alexei] CALTECH, Dept Phys, Pasadena, CA 91125 USA. [Chen, Xie; Kitaev, Alexei] CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA. [Chen, Xie; Vishwanath, Ashvin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Metlitski, Max] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA. [Vishwanath, Ashvin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Burnell, F (reprint author), Univ Minnesota, Dept Phys & Astron, Minneapolis, MN 55455 USA. FU Miller Institute for Basic Research in Science at UC Berkeley; Caltech Institute for Quantum Information and Matter; Walter Burke Institute for Theoretical Physics; Templeton Foundation; NSF [DMR-1352271]; Sloan [FG-2015-65927] FX We would like to thank Lukasz Fidkowski, Zhenghan Wang, Meng Cheng, and T. Senthil for discussion. X.C. is supported by the Miller Institute for Basic Research in Science at UC Berkeley, the Caltech Institute for Quantum Information and Matter and the Walter Burke Institute for Theoretical Physics. A.V. is supported by the Templeton Foundation. FJB is supported by NSF DMR-1352271 and Sloan FG-2015-65927. NR 24 TC 0 Z9 0 U1 2 U2 2 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 30 PY 2016 VL 93 IS 23 AR 235161 DI 10.1103/PhysRevB.93.235161 PG 10 WC Physics, Condensed Matter SC Physics GA DP9KQ UT WOS:000378815500001 ER PT J AU Khanna, V Mankowsky, R Petrich, M Bromberger, H Cavill, SA Mohr-Vorobeva, E Nicoletti, D Laplace, Y Gu, GD Hill, JP Forst, M Cavalleri, A Dhesi, SS AF Khanna, V. Mankowsky, R. Petrich, M. Bromberger, H. Cavill, S. A. Mohr-Vorobeva, E. Nicoletti, D. Laplace, Y. Gu, G. D. Hill, J. P. Foerst, M. Cavalleri, A. Dhesi, S. S. TI Restoring interlayer Josephson coupling in La1.885Ba0.115CuO4 by charge transfer melting of stripe order SO PHYSICAL REVIEW B LA English DT Article ID DENSITY-WAVE ORDER; SUPERCONDUCTIVITY; CUPRATE; LA2-XBAXCUO4; FLUCTUATIONS; TRANSPORT; SYMMETRY AB We show that disruption of charge-density-wave (stripe) order by charge transfer excitation, enhances the superconducting phase rigidity in La1.885Ba0.115CuO4. Time-resolved resonant soft x-ray diffraction demonstrates that charge order melting is prompt following near-infrared photoexcitation whereas the crystal structure remains intact for moderate fluences. THz time-domain spectroscopy reveals that, for the first 2 ps following photoexcitation, a new Josephson plasma resonance edge, at higher frequency with respect to the equilibrium edge, is induced indicating enhanced superconducting interlayer coupling. The fluence dependence of the charge-order melting and the enhanced superconducting interlayer coupling are correlated with a saturation limit of similar to 0.5 mJ/cm(2). Using a combination of x-ray and optical spectroscopies we establish a hierarchy of timescales between enhanced superconductivity, melting of charge order, and rearrangement of the crystal structure. C1 [Khanna, V.; Cavill, S. A.; Dhesi, S. S.] Diamond Light Source, Didcot OX11 0DE, Oxon, England. [Khanna, V.; Mankowsky, R.; Petrich, M.; Bromberger, H.; Nicoletti, D.; Laplace, Y.; Foerst, M.; Cavalleri, A.] Max Planck Inst Struct & Dynam Matter, D-22761 Hamburg, Germany. [Khanna, V.; Mohr-Vorobeva, E.; Cavalleri, A.] Univ Oxford, Clarendon Lab, Dept Phys, Oxford OX1 3PU, England. [Mankowsky, R.; Petrich, M.; Bromberger, H.; Nicoletti, D.; Laplace, Y.; Foerst, M.; Cavalleri, A.] Ctr Free Electron Laser Sci, D-22761 Hamburg, Germany. [Cavill, S. A.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England. [Gu, G. D.; Hill, J. P.] Brookhaven Natl Lab, NSLS II, Upton, NY 11973 USA. [Gu, G. D.; Hill, J. P.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Cavalleri, A (reprint author), Max Planck Inst Struct & Dynam Matter, D-22761 Hamburg, Germany.; Cavalleri, A (reprint author), Univ Oxford, Clarendon Lab, Dept Phys, Oxford OX1 3PU, England.; Cavalleri, A (reprint author), Ctr Free Electron Laser Sci, D-22761 Hamburg, Germany. EM andrea.cavalleri@mpsd.mpg.de; dhesi@diamond.co.uk RI Forst, Michael/D-8924-2012 FU European Research Council under European Union's Seventh Framework Programme/ERC Grant (Q-MAC) [319286]; Office of Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, U.S. Department of Energy (DOE) [DE-SC00112704] FX We thank Diamond Light Source for the provision of beam time under proposals No. SI-7497, No. SI-7942, and No. SI-8207. The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC Grant Agreement No. 319286 (Q-MAC). Work at Brookhaven was supported by the Office of Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, U.S. Department of Energy (DOE), through Contract No. DE-SC00112704. NR 34 TC 1 Z9 1 U1 9 U2 12 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 30 PY 2016 VL 93 IS 22 AR 224522 DI 10.1103/PhysRevB.93.224522 PG 5 WC Physics, Condensed Matter SC Physics GA DP9KT UT WOS:000378815800005 ER PT J AU Shen, CP Yuan, CZ Adachi, I Aihara, H Asner, DM Aulchenko, V Aushev, T Ayad, R Babu, V Badhrees, I Bakich, AM Barberio, E Behera, P Bhardwaj, V Bhuyan, B Biswal, J Bobrov, A Bonvicini, G Bozek, A Bracko, M Browder, TE Cervenkov, D Chang, P Chekelian, V Chen, A Cheon, BG Chilikin, K Chistov, R Cho, K Chobanova, V Choi, SK Choi, Y Cinabro, D Dalseno, J Danilov, M Dash, N Dolezal, Z Drasal, Z Dutta, D Eidelman, S Fang, WX Fast, JE Ferber, T Fulsom, BG Gaur, V Gabyshev, N Garmash, A Gillard, R Glattauer, R Goldenzweig, P Grzymkowska, O Haba, J Hayasaka, K Hayashii, H Hou, WS Iijima, T Inami, K Inguglia, G Ishikawa, A Itoh, R Iwasaki, Y Jaegle, I Jeon, HB Joo, KK Julius, T Kang, KH Kato, E Kiesling, C Kim, DY Kim, JB Kim, KT Kim, SH Kim, YJ Kodys, P Korpar, S Kotchetkov, D Krizan, P Krokovny, P Kuzmin, A Kwon, YJ Lange, JS Li, CH Li, H Li, L Li, Y Li Gioi, L Libby, J Liventsev, D Lubej, M Luo, T Masuda, M Matsuda, T Matvienko, D Miyabayashi, K Miyata, H Mizuk, R Mohanty, GB Mohanty, S Moll, A Moon, HK Mussa, R Nakano, E Nakao, M Nanut, T Nath, KJ Natkaniec, Z Nishida, S Ogawa, S Olsen, SL Ostrowicz, W Pakhlov, P Pakhlova, G Pal, B Park, CS Park, H Pesantez, L Pestotnik, R Petric, M Piilonen, LE Pulvermacher, C Rauch, J Ritter, M Sakai, Y Sandilya, S Santelj, L Sanuki, T Savinov, V Schluter, T Schneider, O Schnell, G Schwanda, C Seino, Y Semmler, D Senyo, K Seong, IS Sevior, ME Shibata, TA Shiu, JG Shwartz, B Simon, F Sokolov, A Solovieva, E Stanic, S Staric, M Strube, JF Stypula, J Sumihama, M Sumiyoshi, T Takizawa, M Tamponi, U Tanida, K Tenchini, F Trabelsi, K Uchida, M Uehara, S Uglov, T Unno, Y Uno, S Urquijo, P Usov, Y Van Hulse, C Varner, G Wang, CH Wang, MZ Wang, P Watanabe, M Watanabe, Y Williams, KM Won, E Yamaoka, J Yelton, J Yook, Y Yusa, Y Zhang, CC Zhang, ZP Zhilich, V Zhukova, V Zhulanov, V Zupanc, A AF Shen, C. P. Yuan, C. Z. Adachi, I. Aihara, H. Asner, D. M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A. M. Barberio, E. Behera, P. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bonvicini, G. Bozek, A. Bracko, M. Browder, T. E. Cervenkov, D. Chang, P. Chekelian, V. Chen, A. Cheon, B. G. Chilikin, K. Chistov, R. Cho, K. Chobanova, V. Choi, S. -K. Choi, Y. Cinabro, D. Dalseno, J. Danilov, M. Dash, N. Dolezal, Z. Drasal, Z. Dutta, D. Eidelman, S. Fang, W. X. Fast, J. E. Ferber, T. Fulsom, B. G. Gaur, V. Gabyshev, N. Garmash, A. Gillard, R. Glattauer, R. Goldenzweig, P. Grzymkowska, O. Haba, J. Hayasaka, K. Hayashii, H. Hou, W. -S. Iijima, T. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, Y. Jaegle, I. Jeon, H. B. Joo, K. K. Julius, T. Kang, K. H. Kato, E. Kiesling, C. Kim, D. Y. Kim, J. B. Kim, K. T. Kim, S. H. Kim, Y. J. Kodys, P. Korpar, S. Kotchetkov, D. Krizan, P. Krokovny, P. Kuzmin, A. Kwon, Y. -J. Lange, J. S. Li, C. H. Li, H. Li, L. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matsuda, T. Matvienko, D. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G. B. Mohanty, S. Moll, A. Moon, H. K. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K. J. Natkaniec, Z. Nishida, S. Ogawa, S. Olsen, S. L. Ostrowicz, W. Pakhlov, P. Pakhlova, G. Pal, B. Park, C. -S. Park, H. Pesantez, L. Pestotnik, R. Petric, M. Piilonen, L. E. Pulvermacher, C. Rauch, J. Ritter, M. Sakai, Y. Sandilya, S. Santelj, L. Sanuki, T. Savinov, V. Schlueter, T. Schneider, O. Schnell, G. Schwanda, C. Seino, Y. Semmler, D. Senyo, K. Seong, I. S. Sevior, M. E. Shibata, T. -A. Shiu, J. -G. Shwartz, B. Simon, F. Sokolov, A. Solovieva, E. Stanic, S. Staric, M. Strube, J. F. Stypula, J. Sumihama, M. Sumiyoshi, T. Takizawa, M. Tamponi, U. Tanida, K. Tenchini, F. Trabelsi, K. Uchida, M. Uehara, S. Uglov, T. Unno, Y. Uno, S. Urquijo, P. Usov, Y. Van Hulse, C. Varner, G. Wang, C. H. Wang, M. -Z. Wang, P. Watanabe, M. Watanabe, Y. Williams, K. M. Won, E. Yamaoka, J. Yelton, J. Yook, Y. Yusa, Y. Zhang, C. C. Zhang, Z. P. Zhilich, V. Zhukova, V. Zhulanov, V. Zupanc, A. CA Belle Collaboration TI First observation of gamma gamma -> p(p)over-barK(+)K(-) and search for exotic baryons in pK systems SO PHYSICAL REVIEW D LA English DT Article ID BELLE; PENTAQUARKS; COLLISIONS; MODEL AB The process gamma gamma -> p (p) over barK(+)K(-) and its intermediate processes are measured for the first time using a 980 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The production of p (p) over barK(+)K(-) and a Lambda(1520)(0) ((Lambda) over bar (1520)(0)) signal in the pK(-) ((p) over barK(+)) invariant mass spectrum are clearly observed. However, no evidence for an exotic baryon near 1540 MeV/c(2), denoted as Theta(1540)(0) ((Theta) over bar (1540)(0)) or Theta(1540)(++) (Theta(1540)(--)), is seen in the pK(-) ((p) over barK(+)) or pK(+) ((p) over barK(-)) invariant mass spectra. Cross sections for gamma gamma -> p (p) over barK(+)K(-), Lambda(1520)(0)(p) over barK(+) + c.c. and the products sigma(gamma gamma -> Theta(1540)(0)(p) over barK(+) + c.c.)B(Theta(1540)(0) -> pK(-)) and sigma(gamma gamma -> Theta(1540)(++)(p) over barK(-) + c.c.)B(Theta(1540)(++) -> pK(+)) are measured. We also determine upper limits on the products of the chi(c0) and chi(c2) two-photon decay widths and their branching fractions to p (p) over barK(+)K(-) at the 90% credibility level. C1 [Schnell, G.; Van Hulse, C.] Univ Basque Country, UPV EHU, Bilbao 48080, Spain. [Shen, C. P.; Fang, W. X.] Beihang Univ, Beijing 100191, Peoples R China. [Pesantez, L.] Univ Bonn, D-53115 Bonn, Germany. [Aulchenko, V.; Bobrov, A.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shwartz, B.; Usov, Y.; Zhilich, V.; Zhulanov, V.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia. [Cervenkov, D.; Dolezal, Z.; Drasal, Z.; Kodys, P.] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic. [Joo, K. K.] Chonnam Natl Univ, Kwangju 660701, South Korea. [Pal, B.; Sandilya, S.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Ferber, T.; Inguglia, G.] DESY, D-22607 Hamburg, Germany. [Yelton, J.] Univ Florida, Gainesville, FL 32611 USA. [Lange, J. S.; Semmler, D.] Univ Giessen, D-35392 Giessen, Germany. [Sumihama, M.] Gifu Univ, Gifu 5011193, Japan. [Adachi, I.; Haba, J.; Itoh, R.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Uehara, S.; Uno, S.] SOKENDAI, Hayama 2400193, Japan. [Choi, S. -K.] Gyeongsang Natl Univ, Chinju 660701, South Korea. [Cheon, B. G.; Kim, S. H.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea. [Browder, T. E.; Jaegle, I.; Kotchetkov, D.; Seong, I. S.; Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA. [Adachi, I.; Haba, J.; Itoh, R.; Iwasaki, Y.; Liventsev, D.; Nakao, M.; Nishida, S.; Sakai, Y.; Santelj, L.; Trabelsi, K.; Uehara, S.; Uno, S.] High Energy Accelerator Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Schnell, G.] Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain. [Bhardwaj, V.] Indian Inst Sci Educ & Res Mohali, Sas Nagar 140306, India. [Dash, N.] Indian Inst Technol Bhubaneswar, Bhubaneswar 751007, Orissa, India. [Bhuyan, B.; Nath, K. J.] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India. [Behera, P.; Libby, J.] Indian Inst Technol, Madras 600036, Tamil Nadu, India. [Li, H.] Indiana Univ, Bloomington, IN 47408 USA. [Yuan, C. Z.; Wang, P.; Zhang, C. C.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. [Glattauer, R.; Schwanda, C.] Inst High Energy Phys, A-1050 Vienna, Austria. [Sokolov, A.] Inst High Energy Phys, Protvino 142281, Russia. [Mussa, R.; Tamponi, U.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Biswal, J.; Bracko, M.; Korpar, S.; Krizan, P.; Lubej, M.; Nanut, T.; Pestotnik, R.; Petric, M.; Staric, M.; Zupanc, A.] J Stefan Inst, Ljubljana 1000, Slovenia. [Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan. [Goldenzweig, P.; Pulvermacher, C.] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany. [Badhrees, I.] King Abdulaziz City Sci & Technol, Riyadh 11442, Saudi Arabia. [Cho, K.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea. [Kim, J. B.; Kim, K. T.; Moon, H. K.; Won, E.] Korea Univ, Seoul 136713, South Korea. [Jeon, H. B.; Kang, K. H.; Park, H.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Chilikin, K.; Chistov, R.; Danilov, M.; Mizuk, R.; Pakhlov, P.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia. [Krizan, P.; Zupanc, A.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia. [Ritter, M.; Schlueter, T.] Univ Munich, Marchioninistr 15, D-80539 Munich, Germany. [Bracko, M.; Korpar, S.] Univ Maribor, SLO-2000 Maribor, Slovenia. [Chekelian, V.; Chobanova, V.; Dalseno, J.; Kiesling, C.; Li Gioi, L.; Moll, A.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Barberio, E.; Julius, T.; Li, C. H.; Sevior, M. E.; Tenchini, F.; Urquijo, P.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Matsuda, T.] Miyazaki Univ, Miyazaki 8892192, Japan. [Chilikin, K.; Chistov, R.; Danilov, M.; Mizuk, R.; Pakhlov, P.; Zhukova, V.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Aushev, T.; Mizuk, R.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Moscow Phys Tech Inst, Dolgoprudnyi 141700, Moscow Region, Russia. [Iijima, T.; Inami, K.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan. [Iijima, T.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan. [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.; Hou, W. -S.; Shiu, J. -G.; Wang, M. -Z.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. [Bozek, A.; Grzymkowska, O.; Natkaniec, Z.; Ostrowicz, W.; Stypula, J.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland. [Hayasaka, K.; Miyata, H.; Seino, Y.; Watanabe, M.; Yusa, Y.] Niigata Univ, Niigata 9502181, Japan. [Stanic, S.] Univ Nova Gor, Nova Gorica 5000, Slovenia. [Aulchenko, V.; Bobrov, A.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shwartz, B.; Usov, Y.; Zhilich, V.; Zhulanov, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia. [Nakano, E.] Osaka City Univ, Osaka 5588585, Japan. [Asner, D. M.; Fast, J. E.; Fulsom, B. G.; Strube, J. F.; Yamaoka, J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Luo, T.; Savinov, V.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Li, L.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Olsen, S. L.; Tanida, K.] Seoul Natl Univ, Seoul 151742, South Korea. [Takizawa, M.] Showa Pharmaceut Univ, Tokyo 1948543, Japan. [Kim, D. Y.] Soongsil Univ, Seoul 156743, South Korea. [Choi, Y.] Sungkyunkwan Univ, Suwon 440746, South Korea. [Bakich, A. M.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Ayad, R.; Badhrees, I.] Univ Tabuk, Fac Sci, Dept Phys, Tabuk 71451, Saudi Arabia. [Babu, V.; Dutta, D.; Gaur, V.; Mohanty, G. B.; Mohanty, S.] Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India. [Dalseno, J.; Moll, A.; Simon, F.] Tech Univ Munich, Excellence Cluster Univ, D-85748 Garching, Germany. [Ogawa, S.; Rauch, J.] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany. [Ishikawa, A.; Kato, E.; Ogawa, S.; Sanuki, T.] Toho Univ, Funabashi, Chiba 2748510, Japan. [Ishikawa, A.; Kato, E.; Sanuki, T.] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan. [Masuda, M.] Univ Tokyo, Earthquake Res Inst, Tokyo 1130032, Japan. [Aihara, H.] 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. [Tamponi, U.] Univ Turin, I-10124 Turin, Italy. [Mohanty, S.] Utkal Univ, Bhubaneswar 751004, Orissa, India. [Li, Y.; Liventsev, D.; Piilonen, L. E.; Williams, K. M.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA. [Bonvicini, G.; Cinabro, D.; Gillard, R.] Wayne State Univ, Detroit, MI 48202 USA. [Senyo, K.] Yamagata Univ, Yamagata 9908560, Japan. [Kwon, Y. -J.; Park, C. -S.; Yook, Y.] Yonsei Univ, Seoul 120749, South Korea. RP Shen, CP (reprint author), Beihang Univ, Beijing 100191, Peoples R China. RI Aihara, Hiroaki/F-3854-2010; Danilov, Mikhail/C-5380-2014; Solovieva, Elena/B-2449-2014; Uglov, Timofey/B-2406-2014; Zhukova, Valentina/C-8878-2016; Chilikin, Kirill/B-4402-2014; Chistov, Ruslan/B-4893-2014; Mizuk, Roman/B-3751-2014; Pakhlova, Galina/C-5378-2014; Pakhlov, Pavel/K-2158-2013; Cervenkov, Daniel/D-2884-2017 OI Aihara, Hiroaki/0000-0002-1907-5964; Danilov, Mikhail/0000-0001-9227-5164; Solovieva, Elena/0000-0002-5735-4059; Uglov, Timofey/0000-0002-4944-1830; Zhukova, Valentina/0000-0002-8253-641X; Chilikin, Kirill/0000-0001-7620-2053; Chistov, Ruslan/0000-0003-1439-8390; Pakhlova, Galina/0000-0001-7518-3022; Pakhlov, Pavel/0000-0001-7426-4824; Cervenkov, Daniel/0000-0002-1865-741X FU Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan; Japan Society for the Promotion of Science (JSPS); Tau-Lepton Physics Research Center of Nagoya University; Australian Research Council; Austrian Science Fund [P 22742-N16, P26794-N20]; National Natural Science Foundation of China [10575109, 10775142, 10875115, 11175187, 11475187, 11575017]; Chinese Academy of Science Center for Excellence in Particle Physics; Ministry of Education, Youth and Sports of the Czech Republic [LG14034]; Carl Zeiss Foundation; Deutsche Forschungsgemeinschaft; Excellence Cluster Universe; VolkswagenStiftung; Department of Science and Technology of India; Istituto Nazionale di Fisica Nucleare of Italy; WCU program of the Ministry of Education; National Research Foundation (NRF) of Korea [2011-0029457, 2012-0008143, 2012R1A1A2008330, 2013R1A1A3007772, 2014R1A2A2A01005286, 2014R1A2A2A01002734, 2015R1A2A2A01003280, 2015H1A2A1033649]; Basic Research Lab program under NRF Grant [KRF-2011-0020333]; Center for Korean J-PARC Users [NRF-2013K1A3A7A06056592]; Brain Korea 21-Plus program; Radiation Science Research Institute; Polish Ministry of Science and Higher Education; National Science Center; Ministry of Education and Science of the Russian Federation; Russian Foundation for Basic Research; Slovenian Research Agency; Ikerbasque (Spain); Basque Foundation for Science (Spain); Euskal Herriko Unibertsitatea (UPV/EHU) (Spain) [UFI 11/55]; Swiss National Science Foundation; Ministry of Education; Ministry of Science and Technology of Taiwan; U.S. Department of Energy; National Science Foundation; MEXT; JSPS FX We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, the National Institute of Informatics, and the PNNL/EMSL computing group for valuable computing and SINET4 network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council; Austrian Science Fund under Grants No. P 22742-N16 and No. P26794-N20; the National Natural Science Foundation of China under Contracts No. 10575109, No. 10775142, No. 10875115, No. 11175187, No. 11475187 and No. 11575017; the Chinese Academy of Science Center for Excellence in Particle Physics; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LG14034; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; the WCU program of the Ministry of Education, National Research Foundation (NRF) of Korea Grants No. 2011-0029457, No. 2012-0008143, No. 2012R1A1A2008330, No. 2013R1A1A3007772, No. 2014R1A2A2A01005286, No. 2014R1A2A2A01002734, No. 2015R1A2A2A01003280, No. 2015H1A2A1033649; the Basic Research Lab program under NRF Grant No. KRF-2011-0020333, Center for Korean J-PARC Users, No. NRF-2013K1A3A7A06056592; the Brain Korea 21-Plus program and Radiation Science Research Institute; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Education and Science of the Russian Federation and the Russian Foundation for Basic Research; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science and the Euskal Herriko Unibertsitatea (UPV/EHU) under program UFI 11/55 (Spain); the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the U.S. Department of Energy and the National Science Foundation. This work is supported by a Grant-in-Aid from MEXT for Science Research in a Priority Area (New Development of Flavor Physics) and from JSPS for Creative Scientific Research (Evolution of Tau-lepton Physics). NR 31 TC 1 Z9 1 U1 7 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 30 PY 2016 VL 93 IS 11 AR 112017 DI 10.1103/PhysRevD.93.112017 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9MP UT WOS:000378820600002 ER PT J AU Kolodrubetz, M AF Kolodrubetz, Michael TI Measuring the Second Chern Number from Nonadiabatic Effects SO PHYSICAL REVIEW LETTERS LA English DT Article ID QUANTIZED HALL CONDUCTANCE; FERMI SYSTEMS; EDGE STATES; TRANSPORT; DYNAMICS AB The geometry and topology of quantum systems have deep connections to quantum dynamics. In this Letter, I show how to measure the non-Abelian Berry curvature and its related topological invariant, the second Chern number, using dynamical techniques. The second Chern number is the defining topological characteristic of the four-dimensional generalization of the quantum Hall effect and has relevance in systems from three-dimensional topological insulators to Yang-Mills field theory. I illustrate its measurement using the simple example of a spin-3/2 particle in an electric quadrupole field. I show how one can dynamically measure diagonal components of the Berry curvature in an overcomplete basis of the degenerate ground state space and use this to extract the full non-Abelian Berry curvature. I also show that one can accomplish the same ideas by stochastically averaging over random initial states in the degenerate ground state manifold. Finally, I show how this system can be manufactured and the topological invariant measured in a variety of realistic systems, from superconducting qubits to trapped ions and cold atoms. C1 [Kolodrubetz, Michael] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA. [Kolodrubetz, Michael] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Kolodrubetz, Michael] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Kolodrubetz, M (reprint author), Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA.; Kolodrubetz, M (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.; Kolodrubetz, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. FU AFOSR [FA9550-13-1-0039]; Laboratory Directed Research and Development (LDRD) from Berkeley Lab; Office of Science, of the U.S. Department of Energy [DEAC02-05CH11231] FX I am pleased to acknowledge helpful conversations with Claudio Chamon, Joel Moore, Anatoli Polkovnikov, Ana-Maria Rey, Seiji Sugawa, and Jun Ye, as well as support from AFOSR FA9550-13-1-0039 and Laboratory Directed Research and Development (LDRD) funding from Berkeley Lab, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract No. DEAC02-05CH11231. NR 52 TC 1 Z9 1 U1 3 U2 7 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 30 PY 2016 VL 117 IS 1 AR 015301 DI 10.1103/PhysRevLett.117.015301 PG 6 WC Physics, Multidisciplinary SC Physics GA DQ0IA UT WOS:000378881300006 PM 27419575 ER PT J AU Oh, H Coh, S Son, YW Cohen, ML AF Oh, Hyungju Coh, Sinisa Son, Young-Woo Cohen, Marvin L. TI Inhibiting Klein Tunneling in a Graphene p-n Junction without an External Magnetic Field SO PHYSICAL REVIEW LETTERS LA English DT Article ID EPITAXIAL GRAPHENE; CHARGE-TRANSFER; TRANSPORT AB We study by first-principles calculations a densely packed island of organic molecules (F(4)TCNQ) adsorbed on graphene. We find that with electron doping the island naturally forms a p-n junction in the graphene sheet. For example, a doping level of similar to 3 x 10(13) electrons per cm(2) results in a p-n junction with an 800 meV electrostatic potential barrier. Unlike in a conventional p-n junction in graphene, in the case of the junction formed by an adsorbed organic molecular island we expect that the Klein tunneling is inhibited, even without an applied external magnetic field. Here Klein tunneling is inhibited by the ferromagnetic order that spontaneously occurs in the molecular island upon doping. We estimate that the magnetic barrier in the graphene sheet is around 10 mT. C1 [Oh, Hyungju; Coh, Sinisa; Son, Young-Woo; Cohen, Marvin L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Oh, Hyungju; Coh, Sinisa; Son, Young-Woo; Cohen, Marvin L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Son, Young-Woo] Korea Inst Adv Study, Hoegiro 85, Seoul 02455, South Korea. RP Oh, H (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.; Oh, H (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM xtom97@hanmail.net FU National Science Foundation [DMR15-1508412]; U.S. Department of Energy within the SP2 Program [DE-AC02-05CH11231]; NRF - MSIP of Korean government (CASE) [2011-0031640] FX This work was supported by National Science Foundation Grant No. DMR15-1508412 (electronic structure calculation) and by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, U.S. Department of Energy under Contract No. DE-AC02-05CH11231, within the SP2 Program (magnetic structure calculation). Y.-W. S. was supported in part by the NRF funded by the MSIP of the Korean government (CASE, No. 2011-0031640). Computational resources have been provided by the DOE at Lawrence Berkeley National Laboratory's NERSC facility. NR 31 TC 0 Z9 0 U1 23 U2 34 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 30 PY 2016 VL 117 IS 1 AR 016804 DI 10.1103/PhysRevLett.117.016804 PG 4 WC Physics, Multidisciplinary SC Physics GA DQ0IA UT WOS:000378881300011 PM 27419583 ER PT J AU Noutsi, P Gratton, E Chaieb, S AF Noutsi, Pakiza Gratton, Enrico Chaieb, Sahraoui TI Assessment of Membrane Fluidity Fluctuations during Cellular Development Reveals Time and Cell Type Specificity SO PLOS ONE LA English DT Article ID LAURDAN FLUORESCENCE; MYOBLAST FUSION; GENERALIZED POLARIZATION; LIPID-BILAYERS; PHOSPHOLIPID-VESICLES; MESSENGER-RNA; IN-VIVO; DEFORMABILITY; ACTIVATION; PHASES AB Cell membrane is made up of a complex structure of lipids and proteins that diffuse laterally giving rise to what we call membrane fluidity. During cellular development, such as differentiation cell membranes undergo dramatic fluidity changes induced by proteins such as ARC and Cofilin among others. In this study we used the generalized polarization (GP) property of fluorescent probe Laurdan using two-photon microscopy to determine membrane fluidity as a function of time and for various cell lines. A low GP value corresponds to a higher fluidity and a higher GP value is associated with a more rigid membrane. Four different cell lines were monitored such as hN2, NIH3T3, HEK293 and L6 cells. Membrane fluidity was measured at 12h, 72h and 92 h. Our results show significant changes in membrane fluidity among all cell types at different time points. GP values tend to increase significantly within 92 h in hN2 cells and 72 h in NIH3T3 cells and only at 92 h in HEK293 cells. L6 showed a marked decrease in membrane fluidity at 72 h and starts to increase at 92 h. As expected, NIH3T3 cells have more rigid membrane at earlier time points. On the other hand, neurons tend to have the highest membrane fluidity at early time points emphasizing its correlation with plasticity and the need for this malleability during differentiation. This study sheds light on the involvement of membrane fluidity during neuronal differentiation and development of other cell lines. C1 [Noutsi, Pakiza; Chaieb, Sahraoui] King Abdullah Univ Sci & Engn, Div Biol & Environm Sci & Engn, Thuwal, Saudi Arabia. [Gratton, Enrico] Univ Calif Irvine, Dept Biomed Engn, Fluorescence Dynam Lab, Irvine, CA USA. [Chaieb, Sahraoui] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,Mailstop 6R-2100, Berkeley, CA 94720 USA. RP Chaieb, S (reprint author), King Abdullah Univ Sci & Engn, Div Biol & Environm Sci & Engn, Thuwal, Saudi Arabia.; Chaieb, S (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,Mailstop 6R-2100, Berkeley, CA 94720 USA. EM sahraoui.chaieb@kaust.edu.sa FU National Institutes of Health [P41-GM103540, P50-GM076516]; King Abdullah University for Science and Technology (KAUST) FX EG is supported by the National Institutes of Health grant P41-GM103540 and P50-GM076516. SC and PN were funded by KAUST. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; The authors wish to thank King Abdullah University for Science and Technology (KAUST) for financial support. We also thank Hongtao Chen for the training on Olympus FV1000 inverted microscope, Per Niklas Hedde for helpful discussions and Milka Stakic for providing HEK293, NIH3T3 and L6 cells. NR 61 TC 0 Z9 0 U1 3 U2 3 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 30 PY 2016 VL 11 IS 6 AR e0158313 DI 10.1371/journal.pone.0158313 PG 15 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DQ0CH UT WOS:000378865200057 PM 27362860 ER PT J AU Jansone-Popova, S May, JA AF Jansone-Popova, Santa May, Jeremy A. TI Stereoelectronic factors in bridgehead C-H bond insertion: studies toward the total synthesis of maoecrystal V SO TETRAHEDRON LA English DT Article DE Maoecrystal V; Carbenes; C-H bond insertion; C-H activation; Stereoelectronic effects ID POLYCYCLIC RING-SYSTEMS; DIELS-ALDER REACTIONS; (-)-MAOECRYSTAL V; CARBENE CASCADES; KETONES; FUNCTIONALIZATION; HYDROSILYLATION; DERIVATIVES; MECHANISM; CORE AB A strategy for the total synthesis of maoecrystal V is presented. The key interior vicinal quaternary carbon centers will be formed via sequential bridgehead C-H bond insertion and enolate functionalization. Studies herein validate the C-H bond insertion as feasible in model studies, though there are significant effects on the selectivity for the bridgehead position from neighboring groups. Both inductive electron withdrawing elements and sterics play a role in deactivating that position, with the former having a greater effect. Forming the second quaternary carbon is possible via enolate acylation and alkylation. Lastly, an approach to synthesize the cyclohexenone ring of maoecrystal V is described. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Jansone-Popova, Santa; May, Jeremy A.] Univ Houston, Dept Chem, 3585 Cullen Blvd,Fleming Bldg,Room 112, Houston, TX 77204 USA. [Jansone-Popova, Santa] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP May, JA (reprint author), Univ Houston, Dept Chem, 3585 Cullen Blvd,Fleming Bldg,Room 112, Houston, TX 77204 USA. EM jmay@uh.edu RI Jansone-Popova, Santa/M-2649-2016 OI Jansone-Popova, Santa/0000-0002-0690-5957 FU Welch Foundation [E-1744]; NSF [CHE-1352439] FX The authors wish to thank the Welch Foundation (grant E-1744) and NSF (grant CHE-1352439) for financial support of this effort. Dr. Ilja Popovs is thanked for helpful discussions. NR 48 TC 1 Z9 1 U1 9 U2 19 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0040-4020 J9 TETRAHEDRON JI Tetrahedron PD JUN 30 PY 2016 VL 72 IS 26 BP 3734 EP 3747 DI 10.1016/j.tet.2016.03.101 PG 14 WC Chemistry, Organic SC Chemistry GA DO4BB UT WOS:000377725700016 ER PT J AU Schade, L Franzka, S Biener, M Biener, J Hartmann, N AF Schade, Linda Franzka, Steffen Biener, Monika Biener, Juergen Hartmann, Nils TI Surface-enhanced Raman spectroscopy on laser-engineered ruthenium dye-functionalized nanoporous gold SO APPLIED SURFACE SCIENCE LA English DT Article; Proceedings Paper CT Symposium CC on Laser and Plasma Processing for Advanced Applications in Material Science held during the Annual Spring Meeting of the European-Materials-Research-Society (E-MRS) CY MAY 11-15, 2015 CL Lille, FRANCE SP European Mat Res Soc DE Nanoporous gold; Photothermal laser processing; Laser sintering; Surface enhanced Raman spectroscopy; Resonant Raman spectroscopy; Size effect ID SCATTERING; CATALYSTS; FILMS AB Photothermal processing of nanoporous gold with a microfocused continuous-wave laser at lambda = 532 nm provides a facile means in order engineer the pore and ligament size of nanoporous gold. In this report we take advantage of this approach in order to investigate the size-dependence of enhancement effects in surface-enhanced Raman spectroscopy (SERS). Surface structures with laterally varying pore sizes from 25 nm to >= 200 nm are characterized using scanning electron microscopy and then functionalized with N719, a commercial ruthenium complex, which is widely used in dye-sensitized solar cells. Raman spectroscopy reveals the characteristic spectral features of N719. Peak intensities strongly depend on the pore size. Highest intensities are observed on the native support, i.e. on nanoporous gold with pore sizes around 25 nm. These results demonstrate the particular perspectives of laser-fabricated nanoporous gold structures in fundamental SERS studies. In particular, it is emphasized that laser-engineered porous gold substrates represent a very well defined platform in order to study size-dependent effects with high reproducibility and precision and resolve conflicting results in previous studies. (C) 2015 Elsevier B.V. All rights reserved. C1 [Schade, Linda; Hartmann, Nils] Univ Duisburg Essen, Dept Chem, D-45117 Essen, Germany. [Schade, Linda; Franzka, Steffen; Hartmann, Nils] Univ Duisburg Essen, CENIDE, D-47057 Essen, Germany. [Franzka, Steffen; Hartmann, Nils] Univ Duisburg Essen, ICAN, D-47047 Essen, Germany. [Biener, Monika; Biener, Juergen] Lawrence Livermore Natl Lab, Nanoscale Synth & Characterizat Lab, 7000 East Ave, Livermore, CA 94550 USA. RP Hartmann, N (reprint author), Univ Duisburg Essen, Dept Chem, D-45117 Essen, Germany. EM nils.hartmann@uni-due.de NR 20 TC 2 Z9 2 U1 14 U2 34 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-4332 EI 1873-5584 J9 APPL SURF SCI JI Appl. Surf. Sci. PD JUN 30 PY 2016 VL 374 BP 19 EP 22 DI 10.1016/j.apsusc.2015.08.168 PG 4 WC Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA DL9BV UT WOS:000375937300004 ER PT J AU Xiang, HF Shi, PC Bhattacharya, P Chen, XL Mei, DH Bowden, ME Zheng, JM Zhang, JG Xu, W AF Xiang, Hongfa Shi, Pengcheng Bhattacharya, Priyanka Chen, Xilin Mei, Donghai Bowden, Mark E. Zheng, Jianming Zhang, Ji-Guang Xu, Wu TI Enhanced charging capability of lithium metal batteries based on lithium bis(trifluoromethanesulfonyl)imide-lithium bis(oxalato) borate dual-salt electrolytes SO JOURNAL OF POWER SOURCES LA English DT Article DE Lithium metal battery; Dual-salt electrolyte; Lithium metal protection; Fast chargeability; Charge current density; Cycling stability ID LIBOB-BASED ELECTROLYTES; RECHARGEABLE BATTERIES; ALUMINUM CORROSION; SOLID-ELECTROLYTE; SULFUR BATTERIES; ANODIC BEHAVIOR; AIR BATTERIES; IONIC LIQUID; LI METAL; SUPPRESSION AB Rechargeable lithium (Li) metal batteries with conventional LiPF6-carbonate electrolytes have been reported to fail quickly at charging current densities of about 1.0 mA cm(-2) and above. In this work, we demonstrate the rapid charging capability of Li parallel to LiNi0.8Co0.15Al0.05O2 (NCA) cells can be enabled by a dual salt electrolyte of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium bis(oxalato)borate (LiBOB) in a carbonate solvent mixture. The cells using the LiTFSI-LiBOB dual-salt electrolyte significantly outperform those using the LiPF6 electrolyte at high charging current densities. At the charging current density of 1.50 mA cm(-2), the Li parallel to INCA cells with the dual-salt electrolyte can still deliver a discharge capacity of 131 mAh g(-1) and a capacity retention of 80% after 100 cycles. The Li parallel to INCA cells with the LiPF6 electrolyte start to show fast capacity fading after the 30th cycle and only exhibit a low capacity of 25 mAh g(-1) and a low retention of 15% after 100 cycles. The reasons for the good chargeability and cycling stability of the cells using the LiTFSI-LiBOB dual-salt electrolyte can be attributed to the good film-formation ability of the electrolyte on the Li metal anode and the highly conductive nature of the sulfur-rich interphase layer. (C) 2016 Elsevier B.V. All rights reserved. C1 [Xiang, Hongfa; Bhattacharya, Priyanka; Chen, Xilin; Zheng, Jianming; Zhang, Ji-Guang; Xu, Wu] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. [Xiang, Hongfa; Shi, Pengcheng] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China. [Mei, Donghai] Pacific NW Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA. [Bowden, Mark E.] Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA 99354 USA. RP Xu, W (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. EM wu.xu@pnnl.gov RI Mei, Donghai/D-3251-2011; Zheng, Jianming/F-2517-2014; Mei, Donghai/A-2115-2012; Xiang, Hongfa/I-5126-2012; OI Zheng, Jianming/0000-0002-4928-8194; Mei, Donghai/0000-0002-0286-4182; Xiang, Hongfa/0000-0002-6182-1932; Xu, Wu/0000-0002-2685-8684 FU Office of Vehicle Technologies, the Advanced Battery Materials Research (BMR) programs of the U.S. Department of Energy (DOE) [DE-AC02-05CH11231, 18769]; DOE's Office of Biological and Environmental Research (BER); National Science Foundation of China [51372060]; Linus Pauling distinguished Post-doctoral Fellowship of PNNL; DOE [DE-AC05-76RLO1830] FX This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, the Advanced Battery Materials Research (BMR) programs of the U.S. Department of Energy (DOE) under Contract No. DE-AC02-05CH11231, Subcontract No. 18769. The microscopic images and spectroscopic measurements were conducted at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL)-a national scientific user facility located at PNNL, which is sponsored by the DOE's Office of Biological and Environmental Research (BER). H.X. acknowledges the financial support from National Science Foundation of China (Grant No. 51372060). P.B. gratefully acknowledges support from the Linus Pauling distinguished Post-doctoral Fellowship of PNNL. PNNL is operated by Battelle for the DOE under Contract DE-AC05-76RLO1830. The authors thank Mr. Bryant Polzin at ANL for supplying the coated NCA and graphite electrodes. Drs. Jiangfeng Qian, Liang Xiao and Dongping Lv at PNNL are also appreciated for good discussions. NR 39 TC 8 Z9 8 U1 41 U2 91 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD JUN 30 PY 2016 VL 318 BP 170 EP 177 DI 10.1016/j.jpowsour.2016.04.017 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA DM0QQ UT WOS:000376051300020 ER PT J AU Sa, NY Pan, BF Saha-Shah, A Hubaud, AA Vaughey, JT Baker, LA Liao, C Burrell, AK AF Sa, Niya Pan, Baofei Saha-Shah, Anumita Hubaud, Aude A. Vaughey, John T. Baker, Lane A. Liao, Chen Burrell, Anthony K. TI Role of Chloride for a Simple, Non-Grignard Mg Electrolyte in Ether-Based Solvents SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE Mg battery; nonaqueous Mg electrolyte; plating and stripping of magnesium; Chevrel phase cathode; rechargeable magnesium battery ID RECHARGEABLE MAGNESIUM BATTERIES; CHEVREL-PHASE; CATHODE MATERIAL; ION; INTERCALATION; CHALLENGE; STABILITY; REAGENT; STORAGE; SALTS AB Mg battery operates with Chevrel phase (Mo6S8, similar to 1.1 V vs Mg) cathodes that apply Grignard-based or derived electrolytes, which allow etching of the passivating oxide coating forms at the magnesium metal anode. Majority of Mg electrolytes studied to date are focused on developing new synthetic strategies to achieve a better reversible Mg deposition. While most of these electrolytes contain chloride as a component, and there is a lack of literature which investigates the fundamental role of chloride in Mg electrolytes. Further, ease of preparation and potential safety benefits have made simple design of magnesium electrolytes an attractive alternative to traditional air sensitive Grignard reagents-based electrolytes. Work presented here describes simple, non-Grignard magnesium electrolytes composed of magnesium bis(trifluoromethane sulfonyl)imide mixed with magnesium chloride (Mg(TFSI)(2)-MgCl2) in tetrahydrofuran (THF) and diglyme (G2) that can reversibly plate and strip magnesium. Based on this discovery, the effect of chloride in the electrolyte complex was investigated. Electrochemical properties at different initial mixing ratios of Mg(TFSI)(2) and MgCl2 showed an increase of both current density and columbic efficiency for reversible Mg deposition as the fraction content of MgCl2 increased. A decrease in overpotential was observed for rechargeable Mg batteries with electrolytes with increasing MgCl2 concentration, evidenced by the coin cell performance. In this work, the fundamental understanding of the operation mechanisms of rechargeable Mg batteries with the role of chloride content from electrolyte could potentially bring rational design of simple Mg electrolytes for practical Mg battery. C1 [Sa, Niya; Pan, Baofei; Hubaud, Aude A.; Vaughey, John T.; Liao, Chen; Burrell, Anthony K.] Argonne Natl Lab, JCESR, 9700 S Cass Ave, Argonne, IL 60439 USA. [Sa, Niya; Pan, Baofei; Hubaud, Aude A.; Vaughey, John T.; Liao, Chen; Burrell, Anthony K.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Saha-Shah, Anumita; Baker, Lane A.] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA. RP Sa, NY; Burrell, AK (reprint author), Argonne Natl Lab, JCESR, 9700 S Cass Ave, Argonne, IL 60439 USA.; Sa, NY; Burrell, AK (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM san@anl.gov; burrell@anl.gov RI Baker, Lane/B-6452-2008; SA, NIYA/E-8521-2017; OI Vaughey, John/0000-0002-2556-6129 FU Joint Center for Energy Storage Research (JCESR); U.S. Department of Energy, Office of Science, Basic Energy Sciences; DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357] FX This work was supported as part of the Joint Center for Energy Storage Research (JCESR), an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences. This research used resources at the Electron Microscopy Center in the Center for Nanoscale Materials, a U.S. Department of Energy (DOE) Office of Science User Facilities operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357. NR 31 TC 4 Z9 4 U1 21 U2 59 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 29 PY 2016 VL 8 IS 25 BP 16002 EP 16008 DI 10.1021/acsami.6b03193 PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ1UB UT WOS:000378984800016 PM 27255422 ER PT J AU Hao, SJ Liu, YN Ren, Y Jiang, DQ Yang, F Cong, DY Wang, YD Cui, LS AF Hao, Shijie Liu, Yinong Ren, Yang Jiang, Daqiang Yang, Feng Cong, Daoyong Wang, Yandong Cui, Lishan TI Achieving Superior Two-Way Actuation by the Stress-Coupling of Nanoribbons and Nanocrystalline Shape Memory Alloy SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE two-way actuation; coupling stress; nanoribbons; shape memory alloy; nanocomposite ID MARTENSITIC-TRANSFORMATION; NITI; BEHAVIOR; DEPENDENCE AB Inspired by the driving principle of traditional bias-type two-way actuators, we developed a novel two-way actuation nanocomposite wire in which a massive number of Nb nanoribbons with ultralarge elastic strains are loaded inside a shape memory alloy (SMA) matrix to form a continuous array of nanobias actuation pairs for two-way actuation. The composite exhibits a two-way actuation strain of 3.2% during a thermal cycle and an actuation stress of 934 MPa upon heating, which is about twice as high as that (similar to 500 MPa) found in reported two-way SMAs. Upon cooling, the composite shows an actuation stress of 134 MPa and a mechanical work output of 1.08 x 10(6) J/m(3), which are about three and five times higher than those of reported two-way SMAs, respectively. It was revealed that the massive number of Nb nanoribbons in the compressive state provides the high actuation stress and high work output upon cooling, and the SMA matrix with high yield strength offers the high actuation stress upon heating. Compared to traditional bias-type two-way actuators, the two-way actuation composite with a small volume and simple construct works well with the miniaturization and simplification of actuators. C1 [Hao, Shijie; Jiang, Daqiang; Yang, Feng; Cui, Lishan] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China. [Liu, Yinong] Univ Western Australia, Sch Mech & Chem Engn, Crawley, Washington 6009, Australia. [Ren, Yang] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Cong, Daoyong; Wang, Yandong] Univ Sci & Technol, State Key Lab Adv Met & Mat, Beijing 10083, Peoples R China. RP Hao, SJ (reprint author), China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China. EM haoshijie@cup.edu.cn RI Jiang, Daqiang /G-5511-2014 FU NSFC [51231008, 51471187, 11474362, 51571211]; Beijing Natural Science Foundation [2152026]; ARC [DP140103805]; Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China [151045]; State Key Lab of Advanced Metals and Materials [2014-ZD01]; Science Foundation of China University of Petroleum Beijing [2462013YJRC005]; United States Department of Energy, Offices of Science and Basic Energy Science [DE-AC02-06CH11357] FX This work was supported by the Key Program of NSFC (Grant 51231008), the NSFC (Grants 51471187, 11474362, and 51571211), the Beijing Natural Science Foundation (Grant 2152026), the ARC grant (DP140103805), the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China (Grant 151045), the State Key Lab of Advanced Metals and Materials (Grant 2014-ZD01), and the Science Foundation of China University of Petroleum Beijing (Grant 2462013YJRC005). The use of the Advanced Photon Source was supported by the United States Department of Energy, Offices of Science and Basic Energy Science under Contract DE-AC02-06CH11357. NR 30 TC 0 Z9 0 U1 11 U2 15 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 29 PY 2016 VL 8 IS 25 BP 16310 EP 16316 DI 10.1021/acsami.6b04138 PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DQ1UB UT WOS:000378984800052 PM 27276656 ER PT J AU Plaza, M Huang, X Ko, JYP Shen, M Simpson, BH Rodriguez-Lopez, J Ritzert, NL Letchworth-Weaver, K Gunceler, D Schlom, DG Arias, TA Brock, JD Abruna, HD AF Plaza, Manuel Huang, Xin Ko, J. Y. Peter Shen, Mei Simpson, Burton H. Rodriguez-Lopez, Joaquin Ritzert, Nicole L. Letchworth-Weaver, Kendra Gunceler, Deniz Schlom, Darrell G. Arias, Tomas A. Brock, Joel D. Abruna, Hector D. TI Structure of the Photo-catalytically Active Surface of SrTiO3 SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID SCANNING ELECTROCHEMICAL MICROSCOPY; HYDROGEN-PRODUCTION; PHOTOCATALYTIC DECOMPOSITION; LIQUID WATER; TIO2; PHOTOELECTROCHEMISTRY; DIFFRACTION; PRINCIPLES; CHEMISTRY; CELLS AB A major goal of energy research is to use visible light to cleave water directly, without an applied voltage, into hydrogen and oxygen. Although SrTiO3 requires ultraviolet light, after four decades, it is still the "gold standard" for the photo-catalytic splitting of water. It is chemically robust and can carry out both hydrogen and oxygen evolution reactions without an applied bias. While ultrahigh vacuum surface science techniques have provided useful insights, we still know relatively little about the structure of these electrodes in contact with electrolytes under operating conditions. Here, we report the surface structure evolution of a n-SrTiO3 electrode during water splitting, before and after "training" with an applied positive bias. Operando high-energy X-ray reflectivity measurements demonstrate that training the electrode irreversibly reorders the surface. Scanning electrochemical microscopy at open circuit correlates this training with a 3-fold increase of the activity toward the photo-induced water splitting. A novel first-principles joint density functional theory simulation, constrained to the X-ray data via a generalized penalty function, identifies an anatase-like structure as the more active, trained surface. C1 [Plaza, Manuel; Huang, Xin; Ko, J. Y. Peter; Brock, Joel D.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA. [Shen, Mei; Simpson, Burton H.; Rodriguez-Lopez, Joaquin] Univ Illinois, Dept Chem, Urbana, IL 61801 USA. [Ritzert, Nicole L.; Abruna, Hector D.] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA. [Letchworth-Weaver, Kendra; Gunceler, Deniz; Arias, Tomas A.] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA. [Schlom, Darrell G.] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA. [Schlom, Darrell G.] Cornell Nanoscale Sci, Kavli Inst, Ithaca, NY 14853 USA. [Plaza, Manuel] Univ Autonoma Madrid, Dept Fis Mat Condensada, Ciudad Univ Cantoblanco, Madrid 28049, Spain. [Ko, J. Y. Peter] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA. [Ritzert, Nicole L.] NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA. [Letchworth-Weaver, Kendra] Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60439 USA. RP Brock, JD (reprint author), Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA.; Abruna, HD (reprint author), Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA.; Arias, TA (reprint author), Cornell Univ, Dept Phys, Ithaca, NY 14853 USA. EM taa2@cornell.edu; jdb20@cornell.edu; hda1@cornell.edu RI Plaza Dominguez, Manuel/L-5040-2014 OI Plaza Dominguez, Manuel/0000-0001-9845-0955 FU Energy Materials Center at Cornell (EMC2) an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001086]; National Science Foundation; National Institutes of Health/National Institute of General Medical Sciences under NSF [DMR-0936384]; University of Illinois at Urbana-Champaign FX We thank Jacob Ruff, Darren Dale, and Hanjong Paik for technical support. This material is based upon work supported as part of the Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award No. DE-SC0001086. This work is based upon research conducted in part at the Cornell High Energy Synchrotron Source (CHESS), which is supported by the National Science Foundation and the National Institutes of Health/National Institute of General Medical Sciences under NSF award DMR-0936384. J.R.-L. acknowledges the University of Illinois at Urbana-Champaign for start-up funds. NR 29 TC 1 Z9 1 U1 38 U2 85 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 29 PY 2016 VL 138 IS 25 BP 7816 EP 7819 DI 10.1021/jacs.6b03338 PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA DQ1TW UT WOS:000378984300004 PM 27281231 ER PT J AU Lockhart, SN Baker, SL Okamura, N Furukawa, K Ishiki, A Furumoto, S Tashiro, M Yanai, K Arai, H Kudo, Y Harada, R Tomita, N Hiraoka, K Watanuki, S Jagust, WJ AF Lockhart, Samuel N. Baker, Suzanne L. Okamura, Nobuyuki Furukawa, Katsutoshi Ishiki, Aiko Furumoto, Shozo Tashiro, Manabu Yanai, Kazuhiko Arai, Hiroyuki Kudo, Yukitsuka Harada, Ryuichi Tomita, Naoki Hiraoka, Kotaro Watanuki, Shoichi Jagust, William J. TI Dynamic PET Measures of Tau Accumulation in Cognitively Normal Older Adults and Alzheimer's Disease Patients Measured Using [18F] THK-5351 SO PLOS ONE LA English DT Article ID PITTSBURGH COMPOUND-B; NEUROFIBRILLARY PATHOLOGY; MODEL; BIOMARKERS; RECEPTOR; BRAIN AB Background [F-18]THK5351, a recently-developed positron emission tomography (PET) tracer for measuring tau neurofibrillary tangle accumulation, may help researchers examine aging, disease, and tau pathology in living human brains. We examined THK5351 tracer pharmacokinetics to define an optimal acquisition time for static late images. Methods Primary measurements were calculation of regional values of distribution volume ratios (DVR) and standardized uptake value ratios (SUVR) in 6 healthy older control and 10 Alzheimer's disease (AD) participants. We examined associations between DVR and SUVR, searching for a 20 min SUVR time window that was stable and comparable to DVR. We additionally examined diagnostic group differences in this 20 min SUVR. Results In healthy controls, [F-18]THK5351 uptake was low, with increased temporal relative to frontal binding. In AD, regional uptake was substantially higher than in healthy controls, with temporal exceeding frontal binding. Retention in cerebellar gray matter, which was used as the reference region, was low compared to other regions. Both DVR and SUVR values showed minimal change over time after 40 min. SUVR 20-40, 30-50, and 40-60 min were most consistently correlated with DVR; SUVR 40-60 min, the most stable time window, was used in further analyses. Significant (AD > healthy control) group differences existed in temporoparietal regions, with marginal medial temporal differences. We found high basal ganglia SUVR 40-60 min signal, with no group differences. Conclusions We examined THK5351, a new PET tracer for measuring tau accumulation, and compared multiple analysis methods for quantifying regional tracer uptake. SUVR 40-60 min performed optimally when examining 20 min SUVR windows, and appears to be a practical method for quantifying relative regional tracer retention. The results of this study offer clinical potential, given the usefulness of THK5351-PET as a biomarker of tau pathology in aging and disease. C1 [Lockhart, Samuel N.; Baker, Suzanne L.; Jagust, William J.] Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. [Baker, Suzanne L.; Jagust, William J.] Lawrence Berkeley Natl Lab, Ctr Funct Imaging, Berkeley, CA USA. [Okamura, Nobuyuki; Yanai, Kazuhiko] Tohoku Univ, Sch Med, Dept Pharmacol, Sendai, Miyagi, Japan. [Furukawa, Katsutoshi; Ishiki, Aiko; Arai, Hiroyuki; Kudo, Yukitsuka; Harada, Ryuichi; Tomita, Naoki] Tohoku Univ, Inst Dev Aging & Canc, Sendai, Miyagi, Japan. [Furumoto, Shozo; Tashiro, Manabu; Yanai, Kazuhiko; Hiraoka, Kotaro; Watanuki, Shoichi] Tohoku Univ, Ctr Cyclotron & Radioisotope, Sendai, Miyagi, Japan. RP Lockhart, SN (reprint author), Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. EM snl@berkeley.edu OI Okamura, Nobuyuki/0000-0002-5991-7812 FU GE Healthcare; SEI (Sumitomo Electric Industries,Ltd.) Group CSR Foundation; Industrial Technology Research Grant Program of the NEDO in Japan [09E51025a]; Ministry of Health, Labor, and Welfare of Japan; National Institute on Aging training fellowship [F32AG050389]; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [15H04900, 26117003, 15K19767] FX This study was supported by a grant from GE Healthcare (www.gehealthcare.com), the SEI (Sumitomo Electric Industries,Ltd.) Group CSR Foundation (http://global-sei.com/csr/), the Industrial Technology Research Grant Program of the NEDO in Japan (http://www.nedo.go.jp/english/index.html, 09E51025a), Health and Labor Sciences Research Grants from the Ministry of Health, Labor, and Welfare (http://www.mhlw.go.jp/english/) of Japan, Grant-in-Aid for Scientific Research (B) (15H04900), Grant-in-Aid for Scientific Research on Innovative Areas (Brain Protein Aging and Dementia Control) (26117003), Grant-in-Aid for Young Scientists (B) (15K19767), and Grant-in-Aid for JSPS Fellows and "Japan Advanced Molecular Imaging Program (J-AMP)" of the Ministry of Education, Culture, Sports, Science and Technology (MEXT; http://www.mext.go.jp/english/), Japan. Drs. Okamura and Kudo own stock in Clino Ltd. Dr. Jagust has served as a consultant to BioClinica, Banner Alzheimer Institute, Genentech, and Novartis. Dr. Lockhart is supported by a National Institute on Aging training fellowship (https://www.nia.nih.gov/, F32AG050389). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 23 TC 5 Z9 5 U1 2 U2 4 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 29 PY 2016 VL 11 IS 6 AR e0158460 DI 10.1371/journal.pone.0158460 PG 16 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DQ0AM UT WOS:000378859400069 PM 27355840 ER PT J AU Sinitsyn, NA Li, FX AF Sinitsyn, Nikolai A. Li, Fuxiang TI Solvable multistate model of Landau-Zener transitions in cavity QED SO PHYSICAL REVIEW A LA English DT Article ID BOW-TIE MODEL; SURVIVAL PROBABILITY; POTENTIAL CURVES; CIRCUIT; COHERENCE; SYSTEMS; STATES; BANDS AB We consider the model of a single optical cavity mode interacting with two-level systems (spins) driven by a linearly time-dependent field. When this field passes through values at which spin energy-level splittings become comparable to spin coupling to the optical mode, a cascade of Landau-Zener transitions leads to coflips of spins in exchange for photons of the cavity. We derive exact transition probabilities between different diabatic states induced by such a sweep of the field. C1 [Sinitsyn, Nikolai A.; Li, Fuxiang] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Li, Fuxiang] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Sinitsyn, NA (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Li, Fuxiang/O-9132-2015 FU National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; LDRD program at LANL FX The authors thank A. Saxena for useful discussions. The work 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. The authors are also grateful for the support from the LDRD program at LANL. NR 68 TC 1 Z9 1 U1 2 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD JUN 29 PY 2016 VL 93 IS 6 AR 063859 DI 10.1103/PhysRevA.93.063859 PG 12 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA DP9GF UT WOS:000378804000007 ER PT J AU Bishop, CB Liu, GK Dagotto, E Moreo, A AF Bishop, Christopher B. Liu, Guangkun Dagotto, Elbio Moreo, Adriana TI On-site attractive multiorbital Hamiltonian for d-wave superconductors SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTORS; U HUBBARD-MODEL; PHASE-SEPARATION; CORRELATED ELECTRONS; T-C; SYMMETRY; BANDS; STATE AB We introduce a two-orbital Hamiltonian on a square lattice that contains on-site attractive interactions involving the two e(g) orbitals. Via a canonical mean-field procedure similar to the one applied to the well-known negative-U Hubbard model, it is shown that the model develops d-wave (B-1g) superconductivity with nodes along the diagonal directions of the square Brillouin zone. This result is also supported by exact diagonalization of the model in a small cluster. The expectation is that this relatively simple attractive model could be used to address the properties of multiorbital d-wave superconductors in the same manner that the negative-U Hubbard model is widely applied to the study of the properties of s-wave single-orbital superconductors. In particular, we show that by splitting the e(g) orbitals and working at three-quarters filling, such that the x(2) - y(2) orbital dominates at the Fermi level but the 3z(2) - r(2) orbital contribution is nonzero, the d-wave pairing state found here phenomenologically reproduces several properties of the superconducting state of the high T(c)d cuprates. C1 [Bishop, Christopher B.; Liu, Guangkun; Dagotto, Elbio; Moreo, Adriana] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37966 USA. [Bishop, Christopher B.; Dagotto, Elbio; Moreo, Adriana] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Liu, Guangkun] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. RP Bishop, CB (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37966 USA.; Bishop, CB (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. OI Liu, Guangkun/0000-0002-2644-940X FU National Science Foundation [DMR-1404375] FX The authors gratefully acknowledge discussions with Cristian Batista. This work was supported by the National Science Foundation, under Grant No. DMR-1404375. NR 35 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 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD JUN 29 PY 2016 VL 93 IS 22 AR 224519 DI 10.1103/PhysRevB.93.224519 PG 7 WC Physics, Condensed Matter SC Physics GA DP9JO UT WOS:000378812700003 ER PT J AU Peach, T Garg, U Gupta, YK Hoffman, J Matta, JT Patel, D Rao, PVM Yoshida, K Itoh, M Fujiwara, M Hara, K Hashimoto, H Nakanishi, K Yosoi, M Sakaguchi, H Terashima, S Kishi, S Murakami, T Uchida, M Yasuda, Y Akimune, H Kawabata, T Harakeh, MN Colo, G AF Peach, T. Garg, U. Gupta, Y. K. Hoffman, J. Matta, J. T. Patel, D. Rao, P. V. Madhusudhana Yoshida, K. Itoh, M. Fujiwara, M. Hara, K. Hashimoto, H. Nakanishi, K. Yosoi, M. Sakaguchi, H. Terashima, S. Kishi, S. Murakami, T. Uchida, M. Yasuda, Y. Akimune, H. Kawabata, T. Harakeh, M. N. Colo, G. TI Effect of ground-state deformation on isoscalar giant resonances in Si-28 SO PHYSICAL REVIEW C LA English DT Article ID INELASTIC ALPHA-SCATTERING; COUPLED-CHANNELS CALCULATIONS; MONOPOLE RESONANCE; DIPOLE RESONANCE; NUCLEAR-MATTER; STRENGTH DISTRIBUTION; PARTICLE SCATTERING; COMPRESSION MODES; DECAY; EXCITATION AB Multipole strength distributions for isoscalar L <= 2 transitions in Si-28 have been extracted using 386-MeV inelastic a scattering at extremely forward angles, including 0 degrees. Observed strength distributions are in good agreement with microscopic calculations for an oblate-deformed ground state. In particular, a large peak at an excitation energy of 17.7 MeV in the isoscalar giant monopole resonance strength is consistent with the calculations. C1 [Peach, T.; Garg, U.; Gupta, Y. K.; Hoffman, J.; Matta, J. T.; Patel, D.; Rao, P. V. Madhusudhana] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Peach, T.; Garg, U.] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA. [Peach, T.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England. [Yoshida, K.] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan. [Yoshida, K.] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan. [Itoh, M.; Fujiwara, M.; Hara, K.; Hashimoto, H.; Nakanishi, K.; Yosoi, M.] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan. [Sakaguchi, H.; Terashima, S.; Kishi, S.; Murakami, T.; Uchida, M.; Yasuda, Y.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan. [Akimune, H.] Konan Univ, Dept Phys, Kobe, Hyogo 5688501, Japan. [Kawabata, T.] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan. [Harakeh, M. N.] Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands. [Colo, G.] Univ Milan, Dipartmento Fis, Via Celoria, I-20133 Milan, Italy. [Colo, G.] Ist Nazl Fis Nucl, Sez Milano, Via Celoria, I-20133 Milan, Italy. [Gupta, Y. K.] Bhabha Atom Res Ctr, Div Nucl Phys, Mumbai 400085, Maharashtra, India. [Hoffman, J.] Volcano Corp, San Diego, CA 92130 USA. [Matta, J. T.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA. [Patel, D.] Univ Texas Houston, MD Anderson Canc Ctr, Dept Radiat Phys, 1515 Holcombe Blvd, Houston, TX 77030 USA. [Rao, P. V. Madhusudhana] Andhra Univ, Dept Nucl Phys, Visakhapatnam 530033, Andhra Pradesh, India. [Itoh, M.] Tohoku Univ, Ctr Cyclotron & Radioisotope, Sendai, Miyagi 9808578, Japan. [Uchida, M.] Tokyo Inst Technol, Dept Phys, Tokyo 1528850, Japan. [Kawabata, T.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan. RP Peach, T (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.; Peach, T (reprint author), Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA.; Peach, T (reprint author), Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England. RI Yoshida, Kenichi/J-8056-2013 OI Yoshida, Kenichi/0000-0002-4224-1668 FU US National Science Foundation [INT-9910015, PHY04-57120, PHY-0822648, PHY-1419765]; JSPS KAKENHI [23740223, 25287065, 16K17687] FX We acknowledge the efforts of the staff of the RCNP Ring Cyclotron Facility for providing the high-quality alpha beams required for these measurements. Also, we are grateful to J. Kvasil for providing us with unpublished results of their calculations for the E0 and E2 strengths with the SVbas interaction. This work has been supported in part by the US National Science Foundation (Grants No. INT-9910015, No. PHY04-57120, No. PHY-0822648, and No. PHY-1419765), and by the JSPS KAKENHI (Grants No. 23740223, No. 25287065, and No. 16K17687). The numerical calculations were performed on SR16000 at the Yukawa Institute for Theoretical Physics, Kyoto University, and on COMA (PACS-IX) at the Center for Computational Science, University of Tsukuba. NR 64 TC 1 Z9 1 U1 2 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 29 PY 2016 VL 93 IS 6 AR 064325 DI 10.1103/PhysRevC.93.064325 PG 8 WC Physics, Nuclear SC Physics GA DP9LN UT WOS:000378817800002 ER PT J AU Ipek, S March-Russell, J AF Ipek, Seyda March-Russell, John TI Baryogenesis via particle-antiparticle oscillations SO PHYSICAL REVIEW D LA English DT Article ID RESONANT LEPTOGENESIS; DARK-MATTER; SUPERSYMMETRY; NEUTRINOS; UNIVERSE AB CP violation, which is crucial for producing the baryon asymmetry of the Universe, is enhanced in particle-antiparticle oscillations. We study particle-antiparticle oscillations [of a particle with mass O(100 GeV)] with CP violation in the early Universe in the presence of interactions with O(ab-fb) cross sections. We show that if baryon-number-violating interactions exist, a baryon asymmetry can be produced via out-of-equilibrium decays of oscillating particles. As a concrete example we study a U(1)(R)-symmetric, R-parity-violating supersymmetry model with pseudo-Dirac gauginos, which undergo particle-antiparticle oscillations. Taking bino to be the lightest U(1)(R)-symmetric particle, and assuming it decays via baryon-number-violating interactions, we show that bino-antibino oscillations can produce the baryon asymmetry of the Universe. C1 [Ipek, Seyda] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [March-Russell, John] Univ Oxford, Dept Phys, Oxford, England. RP Ipek, S (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. FU Balzan Foundation via New College Oxford; U.S. Department of Energy [DE-SC0011637]; United States Department of Energy [DE-AC02-07CH11359] FX S. I. thanks Ann Nelson and David McKeen for helpful comments on an earlier version of this manuscript. S. I. also thanks David McKeen for valuable conversations. This research has been supported in part by the Balzan Foundation via New College Oxford and by the U.S. Department of Energy under Grant No. DE-SC0011637. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. NR 36 TC 1 Z9 1 U1 1 U2 1 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 29 PY 2016 VL 93 IS 12 AR 123528 DI 10.1103/PhysRevD.93.123528 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9NA UT WOS:000378821700003 ER PT J AU Li, BL Chang, L Gao, F Roberts, CD Schmidt, SM Zong, HS AF Li, B. -L. Chang, L. Gao, F. Roberts, C. D. Schmidt, S. M. Zong, H. -S. TI Distribution amplitudes of radially-excited pi and K mesons SO PHYSICAL REVIEW D LA English DT Article ID VECTOR CURRENT HYPOTHESIS; CHIRAL QUARK-MODEL; DECAY CONSTANT; QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; SYMMETRY-BREAKING; LATTICE QCD; SUM-RULES; BEHAVIOR; PHYSICS AB A symmetry-preserving truncation of the two-body bound state problem in relativistic quantum field theory is used to compute the leading-twist parton distribution amplitudes (PDAs) for the first radial excitations of the pi and K mesons. In common with ground states in these channels, the PDAs are found to be dilated with respect to the relevant conformal-limit form and skewed toward the heavier valence quark in asymmetric systems. In addition, the PDAs of radially excited pseudoscalar mesons are not positive definite, owing to the fact that dynamical chiral symmetry breaking (DCSB) forces the leptonic decay constant of such states to vanish in the chiral limit. These results highlight that DCSB is expressed visibly in every pseudoscalar meson constituted from light quarks. Hence, so long as its impact is empirically evident in the pseudoscalar members of a given spectrum level, it is unlikely that chiral symmetry is restored in any of the hadrons that populate this level. C1 [Li, B. -L.; Zong, H. -S.] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. [Chang, L.] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China. [Gao, F.] Peking Univ, Dept Phys, Beijing 100871, Peoples R China. [Gao, F.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. [Gao, F.] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China. [Roberts, C. D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Schmidt, S. M.] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany. [Schmidt, S. M.] JARA, D-52425 Julich, Germany. [Zong, H. -S.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. RP Li, BL (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. EM libolin0626@126.com; lei.chiong@gmail.com; hiei@pku.edu.cn; cdroberts@anl.gov; s.schmidt@fz-juelich.de; zonghs@nju.edu.cn FU National Natural Science Foundation of China [11175004, 11275097, 11435001, 11475085, 11535005]; National Key Basic Research Program of China [G2013CB834400, 2015CB856900]; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357]; Chinese Ministry of Education, under the International Distinguished Professor program FX We are grateful for insightful comments and suggestions from S. J. Brodsky, I. C. Cloet, G. F. de Teramond, B. El-Bennich, C. Mezrag, S.-X. Qin, C. Shi, and P. C. Tandy. Work was supported by the National Natural Science Foundation of China (Contracts No. 11175004, No. 11275097, No. 11435001, No. 11475085 and No. 11535005); the National Key Basic Research Program of China (Contracts No. G2013CB834400 and No. 2015CB856900); the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357; and the Chinese Ministry of Education, under the International Distinguished Professor program. NR 77 TC 2 Z9 2 U1 2 U2 3 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 29 PY 2016 VL 93 IS 11 AR 114033 DI 10.1103/PhysRevD.93.114033 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9MM UT WOS:000378820300005 ER PT J AU Alarcon-Llado, E Brazzini, T Ager, JW AF Alarcon-Llado, Esther Brazzini, Tommaso Ager, Joel W. TI Surface origin and control of resonance Raman scattering and surface band gap in indium nitride SO JOURNAL OF PHYSICS D-APPLIED PHYSICS LA English DT Article DE Raman spectroscopy; indium nitride; surface electron accumulation ID ACCUMULATION LAYERS; INN; ELECTRON; RENORMALIZATION; SEMICONDUCTORS AB Resonance Raman scattering measurements were performed on indium nitride thin films under conditions where the surface electron concentration was controlled by an electrolyte gate. As the surface condition is tuned from electron depletion to accumulation, the spectral feature at the expected position of the (E1, A1) longitudinal optical (LO) near 590 cm(-1) shifts to lower frequency. The shift is reversibly controlled with the applied gate potential, which clearly demonstrates the surface origin of this feature. The result is interpreted within the framework of a Martin double resonance, where the surface functions as a planar defect, allowing the scattering of long wavevector phonons. The allowed wavevector range, and hence the frequency, is modulated by the electron accumulation due to band gap narrowing. A surface band gap reduction of over 500 meV is estimated for the conditions of maximum electron accumulation. Under conditions of electron depletion, the full InN bandgap (Eg = 0.65 eV) is expected at the surface. The drastic change in the surface band gap is expected to influence the transport properties of devices which utilize the surface electron accumulation layer. C1 [Alarcon-Llado, Esther] Swiss Fed Inst Technol EPFL, Lausanne, Switzerland. [Alarcon-Llado, Esther; Brazzini, Tommaso; Ager, Joel W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Brazzini, Tommaso] Univ Politecn Madrid, ETSI Telecomunicac, Dept Ingn Elect, E-28040 Madrid, Spain. [Brazzini, Tommaso] Univ Politecn Madrid, ETSI Telecomunicac, Inst Sistemas Optoelect & Microtecnol, E-28040 Madrid, Spain. [Alarcon-Llado, Esther] FOM Inst AMOLF, Amsterdam, Netherlands. RP Ager, JW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM JWAger@lbl.gov OI Alarcon Llado, Esther/0000-0001-7317-9863 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Marie Curie Actions; EU under Initial training network RAINBOW of the 7 RTD Framework [PITN-GA-2008-213238] FX This work was supported by Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. EAL acknowledges the support from the Marie Curie Actions. TB acknowledges the support by the EU under the Grant Agreement No. PITN-GA-2008-213238, Initial training network RAINBOW of the 7 RTD Framework. We thank Alex Bell, Jason Yeo Boon Siang and Mary Louie for the use of their Raman microprobe instruments. We also thank Jordi Ibanez Insa for fruitful discussions. NR 49 TC 1 Z9 1 U1 12 U2 36 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0022-3727 EI 1361-6463 J9 J PHYS D APPL PHYS JI J. Phys. D-Appl. Phys. PD JUN 29 PY 2016 VL 49 IS 25 AR 255102 DI 10.1088/0022-3727/49/25/255102 PG 9 WC Physics, Applied SC Physics GA DO9FG UT WOS:000378089600008 ER PT J AU Bansil, A Lin, H Das, T AF Bansil, A. Lin, Hsin Das, Tanmoy TI Colloquium: Topological band theory SO REVIEWS OF MODERN PHYSICS LA English DT Article ID QUANTUM SPIN HALL; WEYL FERMION SEMIMETAL; MUFFIN-TIN ALLOYS; 2-DIMENSIONAL ELECTRON-GAS; CONDENSED-MATTER PHYSICS; FIELD-EFFECT TRANSISTORS; T-MATRIX APPROXIMATIONS; HELICAL DIRAC FERMIONS; KONDO INSULATOR SMB6; PHASE-TRANSITION AB The first-principles band theory paradigm has been a key player not only in the process of discovering new classes of topologically interesting materials, but also for identifying salient characteristics of topological states, enabling direct and sharpened confrontation between theory and experiment. This review begins by discussing underpinnings of the topological band theory, which involve a layer of analysis and interpretation for assessing topological properties of band structures beyond the standard band theory construct. Methods for evaluating topological invariants are delineated, including crystals without inversion symmetry and interacting systems. The extent to which theoretically predicted properties and protections of topological states have been verified experimentally is discussed, including work on topological crystalline insulators, disorder and interaction driven topological insulators (TIs), topological superconductors, Weyl semimetal phases, and topological phase transitions. Successful strategies for new materials discovery process are outlined. A comprehensive survey of currently predicted 2D and 3D topological materials is provided. This includes binary, ternary, and quaternary compounds, transition metal and f-electron materials, Weyl and 3D Dirac semimetals, complex oxides, organometallics, skutterudites, and antiperovskites. Also included is the emerging area of 2D atomically thin films beyond graphene of various elements and their alloys, functional thin films, multilayer systems, and ultrathin films of 3D TIs, all of which hold exciting promise of wide-ranging applications. This Colloquium concludes by giving a perspective on research directions where further work will broadly benefit the topological materials field. C1 [Bansil, A.; Lin, Hsin] Northeastern Univ, Dept Phys, Boston, MA 02115 USA. [Lin, Hsin; Das, Tanmoy] Natl Univ Singapore, Ctr Adv Mat 2D, Singapore 117546, Singapore. [Lin, Hsin; Das, Tanmoy] Natl Univ Singapore, Graphene Res Ctr, Singapore 117546, Singapore. [Lin, Hsin; Das, Tanmoy] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore. [Das, Tanmoy] Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. RP Bansil, A (reprint author), Northeastern Univ, Dept Phys, Boston, MA 02115 USA. EM bansil@neu.edu FU U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences [DE-FG02-07ER46352, DE-AC02-05CH11231, DE-SC0012575]; National Research Foundation, Prime Minister's Office, Singapore under its NRF fellowship (NRF Award) [NRF-NRFF2013-03] FX It is a great pleasure to acknowledge our collaborations and discussions on various aspects of topological materials with the following colleagues: J. Adell, N. Alidoust, J. M. Allred, T. Balasubramanian, A. Balatsky, L. Balicas, B. Barbiellini, S. Basak, I. Belopolski, G. Bian, M. Bissen, J. Braun, R. S. Cava, H. R. Chang, T.-R. Chang, J. G. Checkelsky, Y. Chen, F. C. Chou, F. C. Chuang, Y.-T. Cui, J.-W. Deng, J. D. Denlinger, C. Dhital, J. H. Dil, H. Ding, K. Dolui, W. Duan, T. Durakiewicz, H. Ebert, A. V. Fedorov, Z. Fisk, L. Fu, D. R. Gardner, Q. Gibson, M. J. Graf, D. Grauer, G. Gupta, M. Z. Hasan, Y. He, J. Hoffman, Y. S. Hor, D. Hsieh, T. H. Hsieh, C.-H. Hsu, C.-Yi Huang, Y.-B. Huang, Z.-Q. Huang, E. Hudson, Z. Hussain, Y. Ishida, M. B. Jalil, H.-T. Jeng, H. Ji, S. Jia, Y. Jo, S. Kaprzyk, S. Khadka, D.-J. Kim, T. Kondo, J. W. Krizan, S. K. Kushwaha, G. Landolt, M. Leandersson, J. Lee, Y. S. Lee, G. C. Liang, M. Lindroos, C. Liu, J. Liu, Y.-T, Liu, Z. Liu, V. Madhavan, D. Marchenko, A. Marcinkova, R. S. Markiewicz, F. Meier, P. E. Mijnarends, J. Minar, K. Miyamoto, S.-K. Mo, R. Moore, E. Morosan, M. Neupane, J. Nieminen, Y. Ohtsubo, Y. Okada, T. Okuda, N. P. Ong, J. Osterwalder, A. Pal, L. Patthey, A. Petersen, R. Prasad, C. M. Polley, D. Qian, O. Rader, A. Richardella, N. Samarth, J. S~nchez-Barriga, F. Schmitt, M. R. Scholz, M. Serbyn, M. Severson, R. Shankar, A. Sharma, Z. X. Shen, S. Shin, B. Singh, B. Slomski, A. Soumyanarayanan, A. Taleb-Ibrahimi, W.-F. Tsai, A. Varykhalov, A. Volykhov, F. von Rohr, D. Walkup, Y. Wang, Y.-J. Wang, Z. Wang, S. D. Wilson, L. A. Wray, D. Wu, Y. Xia, J. Xiong, S. Xu, H. Yan, L. V. Yashina, M. M. Yee, D. Zhang, Y. Zhang, Bo Zhou, and W. Zhou. The work of A. B. was supported by the U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences Grants No. DE-FG02-07ER46352 (core research), No. DE-AC02-05CH11231 (computational support at NERSC), and No. DE-SC0012575 (work on layered materials). The work of H. L. and T. D. was supported by the National Research Foundation, Prime Minister's Office, Singapore under its NRF fellowship (NRF Award No. NRF-NRFF2013-03). NR 608 TC 25 Z9 25 U1 141 U2 241 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0034-6861 EI 1539-0756 J9 REV MOD PHYS JI Rev. Mod. Phys. PD JUN 29 PY 2016 VL 88 IS 2 AR 021004 DI 10.1103/RevModPhys.88.021004 PG 37 WC Physics, Multidisciplinary SC Physics GA DQ0IN UT WOS:000378882600001 ER PT J AU Yang, DW Ming, WM Shi, HL Zhang, LJ Du, MH AF Yang, Dongwen Ming, Wenmei Shi, Hongliang Zhang, Lijun Du, Mao-Hua TI Fast Diffusion of Native Defects and Impurities in Perovskite Solar Cell Material CH3NH3PbI3 SO CHEMISTRY OF MATERIALS LA English DT Article ID ORGANOMETAL TRIHALIDE PEROVSKITE; METHYLAMMONIUM LEAD IODIDE; MINIMUM ENERGY PATHS; ELASTIC BAND METHOD; HALIDE PEROVSKITES; TRANSPORT-PROPERTIES; CRYSTAL-STRUCTURE; SINGLE-CRYSTALS; SADDLE-POINTS; HYSTERESIS AB CH3NH3PbI3-based solar cells have shown remarkable progress in recent years but have also suffered from structural, electrical, and chemical instabilities related to the soft lattices and the chemistry of these halides. One of the instabilities is ion migration, which may cause current-voltage hysteresis in CH3NH3PbI3 solar cells. Significant ion diffusion and ionic conductivity in CH3NH3PbI3 have been reported; their nature, however, remain controversial. In the literature, the use of different experimental techniques leads to the observation of different diffusing ions (either iodine or CH3NH3 ion); the calculated diffusion barriers for native defects scatter in a wide range; the calculated defect formation energies also differ qualitatively. These controversies hinder the understanding and the control of the ion migration in CH3NH3PbI3. In this paper, we show density functional theory calculations of both the diffusion barriers and the formation energies for native defects (V-I(+), MA(t)(+), V-MA(-), and I-t(-)) and the Au impurity in CH3NH3PbI3. V-I(+) is found to be the dominant diffusing defect due to its low formation energy and the low diffusion barrier. I-i(-) and MA(i)(+) also have low diffusion barriers but their formation energies are relatively high. The hopping rate of V-I(+) is further calculated taking into account the contribution of the vibrational entropy, confirming V-I(+) as a fast diffuser. We discuss approaches for managing defect population and migration and suggest that chemically modifying surfaces, interfaces, and grain boundaries may be effective in controlling the population of the iodine vacancy and the device polarization. We further show that the formation energy and the diffusion barrier of Au interstitial in CH3NH3PbI3 are both low. It is thus possible that Au can diffuse into CH3NH3PbI3 under bias in devices (e.g., solar cell, photodetector) with Au/CH3NH3PbI3 interfaces and modify the electronic properties of CH3NH3PbI3. C1 [Yang, Dongwen; Zhang, Lijun] Jilin Univ, Coll Mat Sci & Engn, Changchun 130012, Peoples R China. [Yang, Dongwen; Zhang, Lijun] Jilin Univ, MOE, Key Lab Automobile Mat, Changchun 130012, Peoples R China. [Ming, Wenmei; Shi, Hongliang; Du, Mao-Hua] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Shi, Hongliang] Beihang Univ, Sch Phys & Nucl Energy Engn, Minist Educ, Key Lab Micronano Measurement Manipulat & Phys, Beijing 100191, Peoples R China. RP Zhang, LJ (reprint author), Jilin Univ, Coll Mat Sci & Engn, Changchun 130012, Peoples R China.; Zhang, LJ (reprint author), Jilin Univ, MOE, Key Lab Automobile Mat, Changchun 130012, Peoples R China.; Du, MH (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM lijun_zhang@jlu.edu.cn; mhdu@ornl.gov RI Shi, Hongliang/A-7568-2010; Zhang, Lijun/F-7710-2011; Du, Mao-Hua/B-2108-2010 OI Shi, Hongliang/0000-0003-0713-4688; Du, Mao-Hua/0000-0001-8796-167X FU Recruitment Program of Global Experts (Thousand Young Talents Plan); Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division FX We are grateful for the helpful discussion with Bin Yang. The work at Jilin University was supported by the Recruitment Program of Global Experts (the Thousand Young Talents Plan). The work at ORNL was supported by the Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. Part of the calculations was performed in the high-performance computing center of Jilin University and on TianHe-1 (A) of National Supercomputer Center in Tianjin. NR 78 TC 7 Z9 7 U1 8 U2 8 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 28 PY 2016 VL 28 IS 12 BP 4349 EP 4357 DI 10.1021/acs.chemmater.6b01348 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100028 ER PT J AU Ma, XF Yuan, X Cao, Z Qi, B Zhang, Z AF Ma, Xiongfeng Yuan, Xiao Cao, Zhu Qi, Bing Zhang, Zhen TI Quantum random number generation SO NPJ QUANTUM INFORMATION LA English DT Review ID KEY DISTRIBUTION; INFORMATION; VARIABLES; PHOTONS; ARRIVAL; VACUUM; STATES; LASER; TIME AB Quantum physics can be exploited to generate true random numbers, which have important roles in many applications, especially in cryptography. Genuine randomness from the measurement of a quantum system reveals the inherent nature of quantumness-coherence, an important feature that differentiates quantum mechanics from classical physics. The generation of genuine randomness is generally considered impossible with only classical means. On the basis of the degree of trustworthiness on devices, quantum random number generators (QRNGs) can be grouped into three categories. The first category, practical QRNG, is built on fully trusted and calibrated devices and typically can generate randomness at a high speed by properly modelling the devices. The second category is self-testing QRNG, in which verifiable randomness can be generated without trusting the actual implementation. The third category, semi-self-testing QRNG, is an intermediate category that provides a tradeoff between the trustworthiness on the device and the random number generation speed. C1 [Ma, Xiongfeng; Yuan, Xiao; Cao, Zhu; Zhang, Zhen] Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing, Peoples R China. [Qi, Bing] Oak Ridge Natl Lab, Computat Sci & Engn Div, Quantum Informat Sci Grp, Oak Ridge, TN USA. [Qi, Bing] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Ma, XF (reprint author), Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing, Peoples R China. EM xma@tsinghua.edu.cn FU National Basic Research Program of China [2011CBA00300, 2011CBA00301]; 1000 Youth Fellowship program in China; Laboratory Directed Research and Development (LDRD) Program of Oak Ridge National Laboratory FX The authors thank R. Colbeck, H.-K. Lo, Y. Shi and F. Xu for enlightening discussions. This work was supported by the National Basic Research Program of China Grants No. 2011CBA00300 and No. 2011CBA00301, the 1000 Youth Fellowship program in China and the Laboratory Directed Research and Development (LDRD) Program of Oak Ridge National Laboratory (managed by UT-Battelle LLC for the US Department of Energy) NR 103 TC 4 Z9 4 U1 4 U2 4 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2056-6387 J9 NPJ QUANTUM INFORM PD JUN 28 PY 2016 VL 2 AR 16021 DI 10.1038/npjqi.2016.21 PG 9 WC Physics, Applied; Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter SC Physics GA EI1XP UT WOS:000392280300002 ER PT J AU Torbert, RB Burch, JL Giles, BL Gershman, D Pollock, CJ Dorelli, J Avanov, L Argall, MR Shuster, J Strangeway, RJ Russell, CT Ergun, RE Wilder, FD Goodrich, K Faith, HA Farrugia, CJ Lindqvist, PA Phan, T Khotyaintsev, Y Moore, TE Marklund, G Daughton, W Magnes, W Kletzing, CA Bounds, S AF Torbert, R. B. Burch, J. L. Giles, B. L. Gershman, D. Pollock, C. J. Dorelli, J. Avanov, L. Argall, M. R. Shuster, J. Strangeway, R. J. Russell, C. T. Ergun, R. E. Wilder, F. D. Goodrich, K. Faith, H. A. Farrugia, C. J. Lindqvist, P. -A. Phan, T. Khotyaintsev, Y. Moore, T. E. Marklund, G. Daughton, W. Magnes, W. Kletzing, C. A. Bounds, S. TI Estimates of terms in Ohm's law during an encounter with an electron diffusion region SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETIC RECONNECTION; FIELD AB We present measurements from the Magnetospheric Multiscale (MMS) mission taken during a reconnection event on the dayside magnetopause which includes a passage through an electron diffusion region (EDR). The four MMS satellites were separated by about 10 km such that estimates of gradients and divergences allow a reasonable estimate of terms in the generalized Ohm's law, which is key to investigating the energy dissipation during reconnection. The strength and character of dissipation mechanisms determines how magnetic energy is released. We show that both electron pressure gradients and electron inertial effects are important, but not the only participants in reconnection near EDRs, since there are residuals of a few mV/m (similar to 30-50%) of E + U-e x B (from the sum of these two terms) during the encounters. These results are compared to a simulation, which exhibits many of the observed features, but where relatively little residual is present. C1 [Torbert, R. B.; Argall, M. R.; Shuster, J.; Faith, H. A.; Farrugia, C. J.] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA. [Torbert, R. B.; Argall, M. R.; Shuster, J.; Faith, H. A.; Farrugia, C. J.] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. [Torbert, R. B.; Burch, J. L.] Southwest Res Inst, San Antonio, TX 78238 USA. [Giles, B. L.; Gershman, D.; Pollock, C. J.; Dorelli, J.; Avanov, L.; Moore, T. E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. [Strangeway, R. J.; Russell, C. T.] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA. [Ergun, R. E.; Wilder, F. D.; Goodrich, K.] Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA. [Lindqvist, P. -A.; Marklund, G.] Royal Inst Technol, Stockholm, Sweden. [Phan, T.] Univ Calif Berkeley, Ctr Space Sci, Berkeley, CA 94720 USA. [Khotyaintsev, Y.] Swedish Inst Space Phys, Uppsala, Sweden. [Daughton, W.] Los Alamos Natl Lab, Los Alamos, NM USA. [Magnes, W.] Austrian Acad Sci, Space Res Inst, Graz, Austria. [Kletzing, C. A.; Bounds, S.] Univ Iowa, Dept Phys, Iowa City, IA USA. RP Torbert, RB (reprint author), Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.; Torbert, RB (reprint author), Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.; Torbert, RB (reprint author), Southwest Res Inst, San Antonio, TX 78238 USA. EM roy.torbert@unh.edu RI NASA MMS, Science Team/J-5393-2013; Daughton, William/L-9661-2013 OI NASA MMS, Science Team/0000-0002-9504-5214; FU NASA [NNG04EB99C] FX We thank the successful MMS team for such wonderful data (available at https://lasp.colorado.edu/mms/sdc/public/) and NASA support via contract NNG04EB99C. NR 24 TC 4 Z9 4 U1 5 U2 6 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 2016 VL 43 IS 12 BP 5918 EP 5925 DI 10.1002/2016GL069553 PG 8 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100002 ER PT J AU Cohen, IJ Mauk, BH Anderson, BJ Westlake, JH Sibeck, DG Giles, BL Pollock, CJ Turner, DL Fennell, JF Blake, JB Clemmons, JH Jaynes, AN Baker, DN Craft, JV Spence, HE Niehof, JT Reeves, GD Torbert, RB Russell, CT Strangeway, RJ Magnes, W Trattner, KJ Fuselier, SA Burch, JL AF Cohen, I. J. Mauk, B. H. Anderson, B. J. Westlake, J. H. Sibeck, D. G. Giles, B. L. Pollock, C. J. Turner, D. L. Fennell, J. F. Blake, J. B. Clemmons, J. H. Jaynes, A. N. Baker, D. N. Craft, J. V. Spence, H. E. Niehof, J. T. Reeves, G. D. Torbert, R. B. Russell, C. T. Strangeway, R. J. Magnes, W. Trattner, K. J. Fuselier, S. A. Burch, J. L. TI Observations of energetic particle escape at themagnetopause: Early results from the MMS Energetic Ion Spectrometer (EIS) SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID FIELD LINE TOPOLOGY; EARTHS MAGNETOPAUSE; BOUNDARY-LAYER; SUBSOLAR MAGNETOPAUSE; DAYSIDE MAGNETOPAUSE; MAGNETOSPHERIC IONS; MAGNETOSHEATH; RECONNECTION; PLASMA; DISTRIBUTIONS AB Energetic (greater than tens of keV) magnetospheric particle escape into the magnetosheath occurs commonly, irrespective of conditions that engender reconnection and boundary-normal magnetic fields. A signature observed by the Magnetospheric Multiscale (MMS) mission, simultaneous monohemispheric streaming of multiple species (electrons, H+, Hen+), is reported here as unexpectedly common in the dayside, dusk quadrant of the magnetosheath even though that region is thought to be drift-shadowed from energetic electrons. This signature is sometimes part of a pitch angle distribution evolving from symmetric in the magnetosphere, to asymmetric approaching the magnetopause, to monohemispheric streaming in the magnetosheath. While monohemispheric streaming in the magnetosheath may be possible without a boundary-normal magnetic field, the additional pitch angle depletion, particularly of electrons, on the magnetospheric side requires one. Observations of this signature in the dayside dusk sector imply that the static picture of magnetospheric drift-shadowing is inappropriate for energetic particle dynamics in the outer magnetosphere. C1 [Cohen, I. J.; Mauk, B. H.; Anderson, B. J.; Westlake, J. H.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA. [Sibeck, D. G.; Giles, B. L.; Pollock, C. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. [Pollock, C. J.] Denali Sci, Healy, AK USA. [Turner, D. L.; Fennell, J. F.; Blake, J. B.; Clemmons, J. H.] Aerosp Corp, El Segundo, CA USA. [Jaynes, A. N.; Baker, D. N.; Craft, J. V.; Trattner, K. J.] Univ Colorado, LASP, Boulder, CO 80309 USA. [Spence, H. E.; Niehof, J. T.; Torbert, R. B.] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. [Reeves, G. D.] Los Alamos Natl Lab, Los Alamos, NM USA. [Russell, C. T.; Strangeway, R. J.] Univ Calif Los Angeles, Los Angeles, CA USA. [Magnes, W.] Austrian Acad Sci, Space Res Inst, Graz, Austria. [Fuselier, S. A.; Burch, J. L.] Southwest Res Inst, San Antonio, TX USA. [Fuselier, S. A.] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA. RP Cohen, IJ (reprint author), Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA. EM ian.cohen@jhuapl.edu RI NASA MMS, Science Team/J-5393-2013; Cohen, Ian/K-3038-2015; Mauk, Barry/E-8420-2017; OI NASA MMS, Science Team/0000-0002-9504-5214; Cohen, Ian/0000-0002-9163-6009; Mauk, Barry/0000-0001-9789-3797; Clemmons, James/0000-0002-5298-5222; Reeves, Geoffrey/0000-0002-7985-8098 FU NASA [NNG04EB99C] FX The authors are grateful to the dedicated scientists and engineers of the MMS science, instrument, and operations teams. The Magnetospheric Multiscale (MMS) mission is funded under NASA contract NNG04EB99C. As of 1 March 2016, MMS data are available for 1 September 2015 through 31 January 2016 from the MMS Science Data Center website: https://lasp.colorado.edu/mms/sdc/. Data for 15 August 2015 are available upon request. NR 36 TC 2 Z9 2 U1 1 U2 2 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 2016 VL 43 IS 12 BP 5960 EP 5968 DI 10.1002/2016GL068689 PG 9 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100007 ER PT J AU Chen, LJ Hesse, M Wang, S Gershman, D Ergun, R Pollock, C Torbert, R Bessho, N Daughton, W Dorelli, J Giles, B Strangeway, R Russell, C Khotyaintsev, Y Burch, J Moore, T Lavraud, B Phan, T Avanov, L AF Chen, Li-Jen Hesse, Michael Wang, Shan Gershman, Daniel Ergun, Robert Pollock, Craig Torbert, Roy Bessho, Naoki Daughton, William Dorelli, John Giles, Barbara Strangeway, Robert Russell, Christopher Khotyaintsev, Yuri Burch, Jim Moore, Thomas Lavraud, Benoit Phan, Tai Avanov, Levon TI Electron energization and mixing observed by MMS in the vicinity of an electron diffusion region during magnetopause reconnection SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETIC-FIELD RECONNECTION; ASYMMETRIC RECONNECTION; PHYSICS AB Measurements from the Magnetospheric Multiscale (MMS) mission are reported to show distinct features of electron energization and mixing in the diffusion region of the terrestrial magnetopause reconnection. At the ion jet and magnetic field reversals, distribution functions exhibiting signatures of accelerated meandering electrons are observed at an electron out-of-plane flow peak. The meandering signatures manifested as triangular and crescent structures are established features of the electron diffusion region (EDR). Effects of meandering electrons on the electric field normal to the reconnection layer are detected. Parallel acceleration and mixing of the inflowing electrons with exhaust electrons shape the exhaust flow pattern. In the EDR vicinity, the measured distribution functions indicate that locally, the electron energization and mixing physics is captured by two-dimensional reconnection, yet to account for the simultaneous four-point measurements, translational invariant in the third dimension must be violated on the ion-skin-depth scale. C1 [Chen, Li-Jen; Hesse, Michael; Wang, Shan; Gershman, Daniel; Pollock, Craig; Bessho, Naoki; Dorelli, John; Giles, Barbara; Moore, Thomas; Avanov, Levon] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Chen, Li-Jen; Wang, Shan; Gershman, Daniel; Bessho, Naoki; Avanov, Levon] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Ergun, Robert] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA. [Torbert, Roy] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA. [Daughton, William] Los Alamos Natl Lab, Los Alamos, NM USA. [Strangeway, Robert; Russell, Christopher] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA. [Khotyaintsev, Yuri] Swedish Inst Space Phys, Uppsala, Sweden. [Burch, Jim] Southwest Res Inst, San Antonio, TX USA. [Lavraud, Benoit] Univ Toulouse, Inst Rech Astrophys & Plantol, Toulouse, France. [Lavraud, Benoit] CNRS, Toulouse, France. [Phan, Tai] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. RP Chen, LJ (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.; Chen, LJ (reprint author), Univ Maryland, Dept Astron, College Pk, MD 20742 USA. EM li-jen.chen@nasa.gov RI NASA MMS, Science Team/J-5393-2013; Daughton, William/L-9661-2013 OI NASA MMS, Science Team/0000-0002-9504-5214; FU NSF [AGS-1202537, AGS-1543598, AGS-1552142]; Theory and Modeling Program; Fast Plasma Investigation of the Magnetospheric Multiscale mission; NASA FX The research was supported in part by NSF grants AGS-1202537, AGS-1543598, and AGS-1552142 and at NASA GSFC by the Theory and Modeling Program and the Fast Plasma Investigation of the Magnetospheric Multiscale mission. Contribution from W.D. was supported by NASA Heliophysics Theory Program. The simulation run was performed on Pleiades under the NASA HEC Program. The MMS data are available at the MMS Science Data Center and PIC data upon request to the authors. NR 28 TC 3 Z9 3 U1 4 U2 6 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 2016 VL 43 IS 12 BP 6036 EP 6043 DI 10.1002/2016GL069215 PG 8 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100016 ER PT J AU Phan, TD Eastwood, JP Cassak, PA Oieroset, M Gosling, JT Gershman, DJ Mozer, FS Shay, MA Fujimoto, M Daughton, W Drake, JF Burch, JL Torbert, RB Ergun, RE Chen, LJ Wang, S Pollock, C Dorelli, JC Lavraud, B Giles, BL Moore, TE Saito, Y Avanov, LA Paterson, W Strangeway, RJ Russell, CT Khotyaintsev, Y Lindqvist, PA Oka, M Wilder, FD AF Phan, T. D. Eastwood, J. P. Cassak, P. A. Oieroset, M. Gosling, J. T. Gershman, D. J. Mozer, F. S. Shay, M. A. Fujimoto, M. Daughton, W. Drake, J. F. Burch, J. L. Torbert, R. B. Ergun, R. E. Chen, L. J. Wang, S. Pollock, C. Dorelli, J. C. Lavraud, B. Giles, B. L. Moore, T. E. Saito, Y. Avanov, L. A. Paterson, W. Strangeway, R. J. Russell, C. T. Khotyaintsev, Y. Lindqvist, P. A. Oka, M. Wilder, F. D. TI MMS observations of electron-scale filamentary currents in the reconnection exhaust and near the X line SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETIC-FIELD LINES; DIFFUSION REGION; MAGNETOPAUSE AB We report Magnetospheric Multiscale observations of macroscopic and electron-scale current layers in asymmetric reconnection. By intercomparing plasma, magnetic, and electric field data at multiple crossings of a reconnecting magnetopause on 22 October 2015, when the average interspacecraft separation was similar to 10 km, we demonstrate that the ion and electron moments are sufficiently accurate to provide reliable current density measurements at 30ms cadence. These measurements, which resolve current layers narrower than the interspacecraft separation, reveal electron-scale filamentary Hall currents and electron vorticity within the reconnection exhaust far downstream of the X line and even in the magnetosheath. Slightly downstream of the X line, intense (up to 3 mu A/m(2)) electron currents, a super-Alfvenic outflowing electron jet, and nongyrotropic crescent shape electron distributions were observed deep inside the ion-scale magnetopause current sheet and embedded in the ion diffusion region. These characteristics are similar to those attributed to the electron dissipation/diffusion region around the X line. C1 [Phan, T. D.; Oieroset, M.; Mozer, F. S.; Oka, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. [Eastwood, J. P.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London, England. [Cassak, P. A.] West Virginia Univ, Dept Phys & Astron, Morgantown, WV USA. [Gosling, J. T.; Ergun, R. E.; Wilder, F. D.] Univ Colorado, LASP, Boulder, CO 80309 USA. [Gershman, D. J.; Chen, L. J.; Dorelli, J. C.; Giles, B. L.; Moore, T. E.; Avanov, L. A.; Paterson, W.] NASA Goddard Space Flight Ctr, Greenbelt, MD USA. [Gershman, D. J.; Chen, L. J.; Wang, S.; Avanov, L. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA. [Gershman, D. J.; Chen, L. J.; Wang, S.; Avanov, L. A.] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA. [Shay, M. A.] Univ Delaware, Dept Phys & Astron, Newark, DE USA. [Fujimoto, M.; Lindqvist, P. A.] ISAS JAXA, Kanagawa, Japan. [Daughton, W.] Los Alamos Natl Lab, Los Alamos, NM USA. [Drake, J. F.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Burch, J. L.; Torbert, R. B.] Southwest Res Inst, San Antonio, TX USA. [Torbert, R. B.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA. [Pollock, C.] Denali Sci, Healy, AK USA. [Lavraud, B.] Univ Toulouse, Inst Rech Astrophys & Planetol, Toulouse, France. [Lavraud, B.] Ctr Natl Rech Sci, Toulouse, France. [Strangeway, R. J.; Russell, C. T.] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA. [Khotyaintsev, Y.] Swedish Inst Space Phys, Uppsala, Sweden. [Lindqvist, P. A.] Royal Inst Technol, Stockholm, Sweden. RP Phan, TD (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. EM phan@ssl.berkeley.edu RI NASA MMS, Science Team/J-5393-2013; Daughton, William/L-9661-2013 OI NASA MMS, Science Team/0000-0002-9504-5214; FU NSF [AGS-1103303, AGS-0953463]; NASA [NNX13AD72G, NNX08AO83G, NNX08A084G, NNX16AF75G, NNX16AG76G]; STFC(UK) [ST/K001051/1, ST/N000692/1] FX Research supported by NSF grants AGS-1103303 and AGS-0953463 and NASA grants NNX13AD72G, NNX08AO83G, NNX08A084G, NNX16AF75G, and NNX16AG76G. Data source: MMS Science Data Center at lasp.colorado.edu/mms/sdc/public/. J.P.E was supported by STFC(UK) grants ST/K001051/1 and ST/N000692/1. NR 27 TC 3 Z9 3 U1 4 U2 6 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 2016 VL 43 IS 12 BP 6060 EP 6069 DI 10.1002/2016GL069212 PG 10 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100019 ER PT J AU Fennell, JF Turner, DL Lemon, CL Blake, JB Clemmons, JH Mauk, BH Jaynes, AN Cohen, IJ Westlake, JH Baker, DN Craft, JV Spence, HE Reeves, GD Torbert, RB Burch, JL Giles, BL Paterson, WR Strangeway, RJ AF Fennell, J. F. Turner, D. L. Lemon, C. L. Blake, J. B. Clemmons, J. H. Mauk, B. H. Jaynes, A. N. Cohen, I. J. Westlake, J. H. Baker, D. N. Craft, J. V. Spence, H. E. Reeves, G. D. Torbert, R. B. Burch, J. L. Giles, B. L. Paterson, W. R. Strangeway, R. J. TI Microinjections observed by MMS FEEPS in the dusk to midnight region SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETOSPHERIC MULTISCALE; EQUATORIAL MAGNETOTAIL; ACCELERATION; INJECTIONS; ELECTRONS; BOUNDARY; MISSION AB Energetic electron injections are commonly observed in the premidnight to dawn regions in association with substorms. However, successive electron injections are generally separated in time by hours and are rarer in the dusk region of the inner magnetosphere. Early MMS energetic electron data taken in the dusk to premidnight regions above similar to 9 R-E show many clusters of electron injections. These injections of 50-400 keV electrons have energy dispersion signatures indicating that they gradient and curvature drifted from earlier local times. We focus on burst rate data starting near 21:00 UT on 6 August 2015. A cluster of similar to 40 electron injections occurred in the following 4 h interval. The highest-resolution data showed that the electrons in the injections were trapped and had bidirectional field-aligned angular distributions. These injection clusters are a new phenomenon in this region of the magnetosphere. C1 [Fennell, J. F.; Turner, D. L.; Lemon, C. L.; Blake, J. B.; Clemmons, J. H.] Aerosp Corp, El Segundo, CA 90245 USA. [Mauk, B. H.; Cohen, I. J.; Westlake, J. H.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA. [Jaynes, A. N.; Baker, D. N.; Craft, J. V.] Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA. [Spence, H. E.; Torbert, R. B.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA. [Reeves, G. D.] Los Alamos Natl Lab, Los Alamos, NM USA. [Burch, J. L.] Southwest Res Inst, San Antonio, TX USA. [Giles, B. L.; Paterson, W. R.] Goddard Spaceflight Ctr, College Pk, MD USA. [Paterson, W. R.] NASA Headquarters, Washington, DC USA. [Strangeway, R. J.] Univ Calif Los Angeles, Earth Planetary & Space Sci, Los Angeles, CA USA. RP Fennell, JF (reprint author), Aerosp Corp, El Segundo, CA 90245 USA. EM joseph.fennell@aero.org RI NASA MMS, Science Team/J-5393-2013; Cohen, Ian/K-3038-2015; Mauk, Barry/E-8420-2017; OI NASA MMS, Science Team/0000-0002-9504-5214; Cohen, Ian/0000-0002-9163-6009; Mauk, Barry/0000-0001-9789-3797; Clemmons, James/0000-0002-5298-5222; Reeves, Geoffrey/0000-0002-7985-8098 FU Southwest Research Institute [792084 N/E99017JD]; NASA [NNX14AF35G, 967399, NAS5-01072] FX The work by the Aerospace Corporation was supported in part by contract 792084 N/E99017JD from Southwest Research Institute and in part by NASA grant NNX14AF35G. The effort of University of Colorado was supported by subcontract 967399 (under prime NASA contract NAS5-01072). The data used in this paper are currently available from the MMS SOC (https://lasp.colorado.edu/mms/sdc/) or through the individual MMS investigators. We acknowledge the SPEDAS team and contributors for their open source library of data analysis tools plus the ACE science center and WDC Geomagnetism, Kyoto, JP, for the solar wind data and preliminary magnetic indices, respectively. NR 30 TC 2 Z9 2 U1 0 U2 1 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 2016 VL 43 IS 12 BP 6078 EP 6086 DI 10.1002/2016GL069207 PG 9 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100021 ER PT J AU Wu, CQ Delorey, A Brenguier, F Hadziioannou, C Daub, EG Johnson, P AF Wu, Chunquan Delorey, Andrew Brenguier, Florent Hadziioannou, Celine Daub, Eric G. Johnson, Paul TI Constraining depth range of S wave velocity decrease after large earthquakes near Parkfield, California SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID AMBIENT SEISMIC NOISE; SAN-ANDREAS FAULT; 2008 WENCHUAN EARTHQUAKE; TEMPORAL-CHANGES; DYNAMICS; VOLCANO; DAMAGE; JAPAN AB We use noise correlation and surface wave inversion to measure the S wave velocity changes at different depths near Parkfield, California, after the 2003 San Simeon and 2004 Parkfield earthquakes. We process continuous seismic recordings from 13 stations to obtain the noise cross-correlation functions and measure the Rayleigh wave phase velocity changes over six frequency bands. We then invert the Rayleigh wave phase velocity changes using a series of sensitivity kernels to obtain the S wave velocity changes at different depths. Our results indicate that the S wave velocity decreases caused by the San Simeon earthquake are relatively small (similar to 0.02%) and access depths of at least 2.3 km. The S wave velocity decreases caused by the Parkfield earthquake are larger (similar to 0.2%), and access depths of at least 1.2 km. Our observations can be best explained by material damage and healing resulting mainly from the dynamic stress perturbations of the two large earthquakes. C1 [Wu, Chunquan; Daub, Eric G.] Univ Memphis, Ctr Earthquake Res & Informat, Memphis, TN 38152 USA. [Delorey, Andrew; Johnson, Paul] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM USA. [Brenguier, Florent] Inst Sci Terre, Grenoble, France. [Hadziioannou, Celine] Univ Munich, Dept Earth & Environm Sci, Munich, Germany. RP Wu, CQ (reprint author), Univ Memphis, Ctr Earthquake Res & Informat, Memphis, TN 38152 USA. EM cwu6@memphis.edu RI Brenguier, Florent/E-4843-2017; OI Delorey, Andrew/0000-0002-5573-8251 FU ISTerre; CERI; German Research Foundation [HA 7019/1-1] FX This research was supported by Institutional Support at Los Alamos National Lab (C.W., A.D., and P.J.), ISTerre (F.B.), CERI (C.W. and E.G.D.), and the Emmy Noether program(HA 7019/1-1) of the German Research Foundation (C.H.). We thank Thomas Lecocq and Corentin Caudron for providing the MSNoise package (www.msnoise.org). We thank Joan Gomberg and Robert Guyer for helpful discussions. All the seismic data are obtained from the Northern California Earthquake Data Center (NCEDC) website (www.ncedc.org). NR 49 TC 1 Z9 1 U1 1 U2 1 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 2016 VL 43 IS 12 BP 6129 EP 6136 DI 10.1002/2016GL069145 PG 8 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100027 ER PT J AU TenCate, JA Malcolm, AE Feng, X Fehler, MC AF TenCate, J. A. Malcolm, A. E. Feng, X. Fehler, M. C. TI The effect of crack orientation on the nonlinear interaction of a P wave with an S wave SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID VELOCITY; SANDSTONES; DENSITY; SOLIDS; ROCKS AB Cracks, joints, fluids, and other pore-scale structures have long been hypothesized to be the cause of the large elastic nonlinearity observed in rocks. It is difficult to definitively say which pore-scale features are most important, however, because of the difficulty in isolating the source of the nonlinear interaction. In this work, we focus on the influence of cracks on the recorded nonlinear signal and in particular on how the orientation of microcracks changes the strength of the nonlinear interaction. We do this by studying the effect of orientation on the measurements in a rock with anisotropy correlated with the presence and alignment of microcracks. We measure the nonlinear response via the traveltime delay induced in a low-amplitude P wave probe by a high-amplitude S wave pump. We find evidence that crack orientation has a significant effect on the nonlinear signal. C1 [TenCate, J. A.] Los Alamos Natl Lab, Earth & Environm Sci Div, Geophys Grp, Los Alamos, NM USA. [Malcolm, A. E.] Mem Univ Newfoundland, Dept Earth Sci, St John, NF, Canada. [Feng, X.; Fehler, M. C.] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA. [Feng, X.] Jilin Univ, Coll Geoexplorat Sci & Technol, Changchun, Peoples R China. RP Malcolm, AE (reprint author), Mem Univ Newfoundland, Dept Earth Sci, St John, NF, Canada. EM amalcolm@mun.ca FU Weatherford; National Natural Science Foundation of China [41430322]; Chevron; Natural Sciences and Engineering Research Council of Canada; Research and Development Corporation of Newfoundland and Labrador; Hibernia Development and Management Corporation FX We are grateful to the funding received for this work from the following: Weatherford (J.T., A.M., and M.F.), the National Natural Science Foundation of China under grant 41430322 (X.F.), Chevron (A.M.), the Natural Sciences and Engineering Research Council of Canada (A.M.), Research and Development Corporation of Newfoundland and Labrador (A.M.), and the Hibernia Development and Management Corporation (A.M.). We also thank Ingo Geldmacher and John Hallman of Weatherford and Dan Burns, Steve Brown of MIT, and Thomas Gallot of Universidad de la Republica, Uruguay, for useful discussions. Data from this work can be obtained by emailing the authors. NR 21 TC 0 Z9 0 U1 2 U2 2 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 2016 VL 43 IS 12 BP 6146 EP 6152 DI 10.1002/2016GL069219 PG 7 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100029 ER PT J AU Chen, K Kunz, M Li, Y Zepeda-Alarcon, E Sintubin, M Wenk, HR AF Chen, Kai Kunz, Martin Li, Yao Zepeda-Alarcon, Eloisa Sintubin, Manuel Wenk, Hans-Rudolf TI Compressional residual stress in Bastogne boudins revealed by synchrotron X-ray microdiffraction SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID ARDENNE SLATE BELT; TECTONIC INVERSION; QUARTZ; DIFFRACTION; DISCLINATIONS; MICROBEAM; EVOLUTION; BELGIUM; IMPACT; ROCKS AB Lattice distortions in crystals can be mapped at the micron scale using synchrotron X-ray Laue microdiffraction (mu XRD). From lattice distortions the shape and orientation of the elastic strain tensor can be derived and interpreted in terms of residual stress. Here we apply the new method to vein quartz from the original boudinage locality at Bastogne, Belgium. A long-standing debate surrounds the kinematics of the Bastogne boudins. The mu XRD measurements reveal a shortening residual elastic strain, perpendicular to the vein wall, corroborating the model that the Bastogne boudins formed by layer-parallel shortening and not by layer-parallel extension, as is in the geological community generally inferred by the process of boudinage. C1 [Chen, Kai; Li, Yao] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Ctr Adv Mat Performance Nanoscale, Xian, Peoples R China. [Kunz, Martin] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA USA. [Zepeda-Alarcon, Eloisa; Wenk, Hans-Rudolf] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Sintubin, Manuel] Katholieke Univ Leuven, Dept Earth & Environm Sci, Leuven, Belgium. RP Wenk, HR (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM wenk@berkeley.edu RI xjtu, campnano/Q-1904-2015 FU NSF [EAR-1343908]; DOE [DE-FG02-05ER15637]; National Young 1000 Talents Program of China; NNSF of China [51302207]; Onderzoeksfonds KU Leuven [OT/11/038]; FWO-Vlaanderen [G097014]; DOE-BES, Materials Science Division [DE-AC02-05CH11231] FX We are appreciative for advice and help from beamline scientist Nobumichi Tamura during ALS experiments and data analysis. H.R.W. acknowledges support from NSF (EAR-1343908) and DOE (DE-FG02-05ER15637), K.C. from the National Young 1000 Talents Program of China and NNSF of China (51302207), MS Onderzoeksfonds KU Leuven (OT/11/038), and FWO-Vlaanderen (G097014). ALS is supported by DOE-BES, Materials Science Division (DE-AC02-05CH11231). Beamline 12.3.2 acknowledges NSF (0416243). Comments by two anonymous reviewers have been very helpful for improving the manuscript. NR 30 TC 0 Z9 0 U1 4 U2 5 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 2016 VL 43 IS 12 BP 6178 EP 6185 DI 10.1002/2016GL069236 PG 8 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100033 ER PT J AU Painemal, D Greenwald, T Cadeddu, M Minnis, P AF Painemal, David Greenwald, Thomas Cadeddu, Maria Minnis, Patrick TI First extended validation of satellite microwave liquid water path with ship-based observations of marine low clouds SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID GLOBAL OCEANS; RETRIEVALS; PACIFIC; DRIZZLE AB We present the first extended validation of satellite microwave (MW) liquid water path (LWP) for low nonprecipitating clouds, from four operational sensors, against ship-borne observations from a three-channel MW radiometer collected along ship transects over the northeast Pacific during May-August 2013. Satellite MW retrievals have an overall correlation of 0.84 with ship observations and a bias of 9.3 g/m(2). The bias for broken cloud scenes increases linearly with water vapor path and remains below 17.7 g/m(2). In contrast, satellite MWLWP is unbiased in overcast scenes with correlations up to 0.91, demonstrating that the retrievals are accurate and reliable under these conditions. Satellite MW retrievals produce a diurnal cycle amplitude consistent with ship-based observations (33 g/m(2)). Observations taken aboard extended ship cruises to evaluate not only satellite MW LWP but also LWP derived from visible/infrared sensors offer a new way to validate this important property over vast oceanic regions. C1 [Painemal, David] NASA, Langley Res Ctr, Sci Syst & Applicat Inc, Hampton, VA 23665 USA. [Greenwald, Thomas] Univ Wisconsin, Cooperat Inst Meteorol Satellite Studies, Madison, WI USA. [Cadeddu, Maria] Argonne Natl Lab, Lemont, IL USA. [Minnis, Patrick] NASA, Langley Res Ctr, Hampton, VA 23665 USA. RP Painemal, D (reprint author), NASA, Langley Res Ctr, Sci Syst & Applicat Inc, Hampton, VA 23665 USA. EM david.painemal@nasa.gov FU U.S. Department of Energy, Office of Biological and Environmental Research, Atmospheric System Research Program [DE-FOA-0000885]; CERES program; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Atmospheric Radiation Measurement Infrastructure Basic Energy Sciences [DE-AC02-06CH11357]; NASA MEaSUREs Project through JPL [1479552]; NASA Earth Science Physical Oceanography Program FX D. Painemal and P. Minnis were supported by the U.S. Department of Energy, Office of Biological and Environmental Research, Atmospheric System Research Program grant DE-FOA-0000885 and CERES program. M. Cadeddu was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Atmospheric Radiation Measurement Infrastructure Basic Energy Sciences, under contract DE-AC02-06CH11357. Support for T. Greenwald was provided by the NASA MEaSUREs Project through JPL contract 1479552. The satellite microwave data used in this study are produced by Remote Sensing Systems and sponsored by the NASA Earth Science Physical Oceanography Program. Data are available at www.remss.com. AMSR2 brightness temperatures were obtained from GCOM-W1 Data Providing Service at http://suzaku.eorc.jaxa.jp/GCOM_W/data/data_w_dpss.html. The MAGIC data set was downloaded from the ARM archive available at http://www.archive.arm.gov/. MODIS retrievals are available at http://ceres.larc.nasa.gov/order_data, and MODIS 1 km data are available upon request. Relevant comments and suggestions provided by Chris O'Dell from Colorado State University and an anonymous reviewer are greatly acknowledged. NR 26 TC 1 Z9 1 U1 2 U2 3 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 2016 VL 43 IS 12 BP 6563 EP 6570 DI 10.1002/2016GL069061 PG 8 WC Geosciences, Multidisciplinary SC Geology GA DS6RN UT WOS:000380910100078 ER PT J AU Wei, C Feng, ZX Baisariyev, M Yu, LH Zeng, L Wu, TP Zhao, HY Huang, YQ Bedzyk, MJ Sritharan, T Xu, ZCJ AF Wei, Chao Feng, Zhenxing Baisariyev, Murat Yu, Linghui Zeng, Li Wu, Tianpin Zhao, Haiyan Huang, Yaqin Bedzyk, Michael J. Sritharan, Thirumany Xu, Zhichuan J. TI Valence Change Ability and Geometrical Occupation of Substitution Cations Determine the Pseudocapacitance of Spinel Ferrite XFe2O4 (X = Mn, Co, Ni, Fe) SO CHEMISTRY OF MATERIALS LA English DT Article ID OXYGEN REDUCTION REACTION; ELECTROCHEMICAL CAPACITOR; INVERSION DEGREE; OXIDATION-STATE; MFE2O4 M; NANOPARTICLES; MNFE2O4; EVOLUTION; SUPERCAPACITORS; NANOCRYSTALS C1 [Wei, Chao; Baisariyev, Murat; Yu, Linghui; Sritharan, Thirumany; Xu, Zhichuan J.] Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore. [Feng, Zhenxing] Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA. [Zeng, Li; Bedzyk, Michael J.] Northwestern Univ, Grad Program Appl Phys, Evanston, IL 60208 USA. [Bedzyk, Michael J.] Northwestern Univ, Mat Sci & Engn, Evanston, IL 60208 USA. [Wu, Tianpin] Argonne Natl Lab, Xray Sci Div, Lemont, IL 60439 USA. [Zhao, Haiyan] Univ Idaho, Chem & Mat Engn Dept, Idaho Falls, ID 83401 USA. [Huang, Yaqin] Beijing Univ Chem Technol, Coll Mat Sci & Technol, Beijing 100029, Peoples R China. RP Xu, ZCJ (reprint author), Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore. EM xuzc@ntu.edu.sg RI Bedzyk, Michael/B-7503-2009; Yu, Linghui/M-9159-2015; Xu, Zhichuan/D-1661-2013; Sritharan, Thirumany/G-4890-2010 OI Yu, Linghui/0000-0001-8690-274X; Xu, Zhichuan/0000-0001-7746-5920; FU Singapore Ministry of Education [RGT13/13, RG131/14]; Singapore National Research Foundation under Campus for Research Excellence And Technological Enterprise (CREATE) programme; MRSEC - NSF [DMR-1121262]; DOE [DE-AC02-06CH11357] FX This work was supported by the Singapore Ministry of Education Tier 1 Grants (RGT13/13 and RG131/14) and the Singapore National Research Foundation under its Campus for Research Excellence And Technological Enterprise (CREATE) programme. LZ and MJB were supported by the MRSEC funded by NSF under DMR-1121262. The Advanced Photon Source (APS) at Argonne National Laboratory is supported by DOE under DE-AC02-06CH11357. Authors thank Charles Kurtz at APS MD and the APS 33BM beamline staffs. NR 36 TC 2 Z9 2 U1 22 U2 39 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 28 PY 2016 VL 28 IS 12 BP 4129 EP 4133 DI 10.1021/acs.chemmater.6b00713 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100003 ER PT J AU Hoch, LB He, L Qiao, Q Liao, K Reyes, LM Zhu, YM Ozin, GA AF Hoch, Laura B. He, Le Qiao, Qiao Liao, Kristine Reyes, Laura M. Zhu, Yimei Ozin, Geoffrey A. TI Effect of Precursor Selection on the Photocatalytic Performance of Indium Oxide Nanomaterials for Gas-Phase CO2 Reduction SO CHEMISTRY OF MATERIALS LA English DT Article ID OXYGEN VACANCIES; TIO2; SEMICONDUCTORS; HYDROXIDES; CONVERSION; CATALYSIS; SURFACES; DEFECTS; ENERGY; WATER AB Nonstoichiometric indium oxide nanoparticles, In2O3-x(OH)(y), have been shown to function as active photocatalysts for gas-phase CO2 reduction under simulated solar irradiation. Herein we demonstrate that the choice of starting material has a strong effect on the photocatalytic activity of indium oxide nanoparticles. We examine three indium oxide materials prepared via the thermal decomposition of either indium(III) hydroxide or indium(III) nitrate and correlate their stability and photocatalytic activity to the number and type of defect present in the material. Further, we use (CO2)-C-13 isotope-tracing experiments to clearly identify the origins of the observed carbon-containing products. Significantly, we find that the oxidizing nature of the precursor anion has a substantial impact on the defect formation within the sample. This study demonstrates the importance of surface defects in designing an active heterogeneous photocatalyst and provides valuable insight into key parameters for the precursor design, selection, and performance optimization of materials for gas-phase CO2 reduction. C1 [Hoch, Laura B.; He, Le; Liao, Kristine; Reyes, Laura M.; Ozin, Geoffrey A.] Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M5S 3H6, Canada. [Qiao, Qiao; Zhu, Yimei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Qiao, Qiao] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA. [He, Le] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Renai Rd, Suzhou 215123, Jiangsu, Peoples R China. RP Ozin, GA (reprint author), Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M5S 3H6, Canada. EM gozin@chem.utoronto.ca RI He, Le/D-7167-2011 OI He, Le/0000-0002-4520-0482 FU Ontario Ministry of Research Innovation (MRI); Ministry of Economic Development, Employment and Infrastructure (MEDI); Ministry of the Environment and Climate Change (MOECC); Connaught Innovation Fund; Connaught Global Challenge Fund; Natural Sciences and Engineering Research Council of Canada (NSERC); CCDM; EFRC - U.S. DOE-BES [DE-SC0012575]; DOE-BES, Materials Science and Engineering Division [DE-SC0012704] FX G.A.O. is a Government of Canada Research Chair in Materials Chemistry and Nanochemistry. Financial support for this work was provided by the Ontario Ministry of Research Innovation (MRI); Ministry of Economic Development, Employment and Infrastructure (MEDI); Ministry of the Environment and Climate Change (MOECC); Connaught Innovation Fund; Connaught Global Challenge Fund; and Natural Sciences and Engineering Research Council of Canada (NSERC). Q.Q. was supported by CCDM, an EFRC funded by the U.S. DOE-BES (#DE-SC0012575) for her TEM work, and Y.Z. was supported by DOE-BES, Materials Science and Engineering Division (#DE-SC0012704). NR 41 TC 0 Z9 0 U1 34 U2 56 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 28 PY 2016 VL 28 IS 12 BP 4160 EP 4168 DI 10.1021/acs.chemmater.6b00301 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100008 ER PT J AU Koepke, JC Wood, JD Chen, YF Schmucker, SW Liu, XM Chang, NN Nienhaus, L Do, JW Carrion, EA Hewaparakrama, J Ranaarajan, A Datye, I Mehta, R Haasch, RT Gruebele, M Girolami, GS Pop, E Lyding, JW AF Koepke, Justin C. Wood, Joshua D. Chen, Yaofeng Schmucker, Scott W. Liu, Ximeng Chang, Noel N. Nienhaus, Lea Do, Jae Won Carrion, Enrique A. Hewaparakrama, Jayan Ranaarajan, Aniruddh Datye, Isha Mehta, Rushabh Haasch, Richard T. Gruebele, Martin Girolami, Gregory S. Pop, Eric Lyding, Joseph W. TI Role of Pressure in the Growth of Hexagonal Boron Nitride Thin Films from Ammonia-Borane SO CHEMISTRY OF MATERIALS LA English DT Article ID CHEMICAL-VAPOR-DEPOSITION; SCANNING-TUNNELING-MICROSCOPY; SINGLE-CRYSTAL GRAPHENE; HIGH-QUALITY GRAPHENE; N-H COMPOUNDS; LARGE-AREA; ATOMIC LAYERS; THERMAL-DECOMPOSITION; GRAIN-BOUNDARIES; MONOLAYER AB We analyze the optical, chemical, and electrical properties of chemical vapor deposition (CVD) grown hexagonal boron nitride (h-BN) using the precursor ammonia-borane (H3N-BH3) as a function of Ar/H-2 background pressure (P-TOT). Films grown at P-TOT <= 2.0 Torr are uniform in thickness, highly crystalline, and consist solely of h-BN. At larger P-TOT with constant precursor flow, the growth rate increases, but the resulting h-BN is more amorphous, disordered, and sp(3)-bonded. We attribute these changes in h-BN grown at high pressure to incomplete thermolysis of the H3N-BH3 precursor from a passivated Cu catalyst. A similar increase in h-BN growth rate and amorphization is observed even at low P-TOT if the H3N-BH3 partial pressure is initially greater than the background pressure P-TOT at the beginning of growth. h-BN growth using the H3N-BH3 precursor reproducibly can give large-area, crystalline h-BN thin films, provided that the total pressure is under 2.0 Torr and the precursor flux is well controlled. C1 [Koepke, Justin C.; Wood, Joshua D.; Chen, Yaofeng; Liu, Ximeng; Do, Jae Won; Carrion, Enrique A.; Hewaparakrama, Jayan; Ranaarajan, Aniruddh; Datye, Isha; Mehta, Rushabh; Pop, Eric; Lyding, Joseph W.] Univ Illinois, Dept Elect & Comp Engn, 1406 W Green St, Urbana, IL 61801 USA. [Koepke, Justin C.; Wood, Joshua D.; Chen, Yaofeng; Liu, Ximeng; Nienhaus, Lea; Do, Jae Won; Ranaarajan, Aniruddh; Datye, Isha; Mehta, Rushabh; Girolami, Gregory S.; Lyding, Joseph W.] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA. [Koepke, Justin C.; Wood, Joshua D.; Chen, Yaofeng; Liu, Ximeng; Nienhaus, Lea; Do, Jae Won; Carrion, Enrique A.; Hewaparakrama, Jayan; Ranaarajan, Aniruddh; Datye, Isha; Mehta, Rushabh; Lyding, Joseph W.] Univ Illinois, Micro & Nanotechnol Lab, Urbana, IL 61801 USA. [Schmucker, Scott W.] US Naval Res Lab, Washington, DC 20375 USA. [Chang, Noel N.; Nienhaus, Lea; Gruebele, Martin; Girolami, Gregory S.] Univ Illinois, Dept Chem, 1209 W Calif St, Urbana, IL 61801 USA. [Haasch, Richard T.] Univ Illinois, Mat Res Lab, Urbana, IL 61801 USA. [Gruebele, Martin] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [Pop, Eric] Stanford Univ, Elect Engn, Stanford, CA 94305 USA. [Koepke, Justin C.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Wood, Joshua D.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Nienhaus, Lea] MIT, Dept Chem, Cambridge, MA 02139 USA. RP Lyding, JW (reprint author), Univ Illinois, Dept Elect & Comp Engn, 1406 W Green St, Urbana, IL 61801 USA.; Lyding, JW (reprint author), Univ Illinois, Beckman Inst, Urbana, IL 61801 USA.; Lyding, JW (reprint author), Univ Illinois, Micro & Nanotechnol Lab, Urbana, IL 61801 USA. EM lyding@illinois.edu OI Nienhaus, Lea/0000-0003-1412-412X FU U.S. Office of Naval Research (ONR) [N00014-13-1-0300]; Air Force Office of Scientific Research (AFOSR) [FA9550-14-1-0251]; National Science Foundation (NSF) under CHE [10-38015, 13-07002, 13-62931, ECCS-1430530]; National Defense Science and Engineering Graduate Fellowship (NDSEG) through the Army Research Office (ARO); Beckman Foundation; Naval Research Enterprise Intern Program (NREIP); National Research Council Research Associateship Award at the Naval Research Laboratory FX This work has been sponsored by the U.S. Office of Naval Research (ONR) under grant N00014-13-1-0300, the Air Force Office of Scientific Research (AFOSR) under grant FA9550-14-1-0251 (E.P.), and the National Science Foundation (NSF) under grants CHE 10-38015 (J.W.L.), 13-07002 (L.N. and M.G.), 13-62931 (G.S.G.), and ECCS-1430530 (E.P.). J.D.W. gratefully acknowledges funding from the National Defense Science and Engineering Graduate Fellowship (NDSEG) through the Army Research Office (ARO), the Beckman Foundation, and the Naval Research Enterprise Intern Program (NREIP). This research was performed while S.W.S. held a National Research Council Research Associateship Award at the Naval Research Laboratory. We kindly thank G. Doidge, K. Chatterjee, and T. Kilpatrick for assistance in h-BN transfer. Time-of-flight secondary ion mass spectroscopy (TOF-SIMS) and X-ray photoelectron spectroscopy measurements were carried out in the Frederick Seitz Materials Research Laboratory Central Facilities at the University of Illinois. Scanning electron microscopy, Raman spectroscopy, and transmission electron microscopy measurements were performed in the Microscopy Suite, which is part of the Imaging Technology Group at the Beckman Institute of the University of Illinois. We are indebted to S. Robinson for assistance with TEM imaging and T. Spila for help in TOF-SIMS data collection. We also acknowledge J. Kaitz for assistance in using the FTIR system. NR 87 TC 7 Z9 7 U1 40 U2 75 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 28 PY 2016 VL 28 IS 12 BP 4169 EP 4179 DI 10.1021/acs.chemmater.6b00396 PG 11 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100009 ER PT J AU Khaleel, M Xu, WQ Lesch, DA Tsapatsis, M AF Khaleel, Maryam Xu, Wenqian Lesch, David A. Tsapatsis, Michael TI Combining Pre- and Post-Nucleation Trajectories for the Synthesis of High FAU-Content Faujasite Nanocrystals from Organic-Free Sols SO CHEMISTRY OF MATERIALS LA English DT Article ID RESOLUTION ELECTRON-MICROSCOPY; ZEOLITE-A; ROOM-TEMPERATURE; INTERGROWTH ZEOLITES; CRYSTAL-GROWTH; PARTICLE-SIZE; STATE SI-29; AL-27 NMR; CRYSTALLIZATION; MECHANISM AB The effects of synthesis conditions on the FAU/EMT content and the size of nanocrystals, formed from inorganic aluminosilicate sols, were investigated. High-resolution transmission electron microscopy imaging and comparison of experimental X-ray diffraction patterns with simulations demonstrated that all materials made starting from synthesis mixtures in the composition range (1.8-33) SiO2:1 Al2O3:(2.7-33) Na2O: (41-1000) H2O contain FAU/EMT intergrowths. Compositions with low water content increase the FAU fraction up to 0.8 but the crystal size exceeds 100 nm. Extension of the higher FAU purity to nanocrystals was achieved only by first mixing the sol at high water content compositions that favor nanocrystal formation and then after a certain time lowering by freeze-drying the water to levels favoring the formation of FAU. Cryogenic transmission electron microscopy and small-angle X-ray scattering from representative optically clear and colloidally stable precursor sols (aged and crystallized at ambient temperature) reveal the formation of amorphous aggregates before the detection of crystals, in agreement with earlier findings and an existing model for the aggregative growth of the zeolite MFI. The presence of these amorphous aggregates coincides with the aforementioned state of sol that preserves the original trajectory toward nanocrystals after the pronounced reduction of water content by freeze-drying. If water reduction by freeze-drying is applied earlier (before the detection of amorphous aggregates), the sol follows the low water content trajectory toward larger crystals. Despite this memory effect, the sol at this stage is still agnostic toward FAU or EMT formation, the relative content of which is dominantly determined by the final water content. These findings demonstrate that it is possible to combine the effects of pre- and post-nucleation sol composition to steer crystal size and crystal structure, respectively. They confirm precursor nanoparticle evolution, while they emphasize the importance of solution phase composition at both pre- and post-nucleation stages of aggregative crystal growth. C1 [Khaleel, Maryam; Tsapatsis, Michael] Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA. [Xu, Wenqian] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Lemont, IL 60439 USA. [Lesch, David A.] UOP LLC, Des Plaines, IL 60017 USA. [Khaleel, Maryam] Petr Inst, Dept Chem Engn, Abu Dhabi, U Arab Emirates. RP Tsapatsis, M (reprint author), Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA. EM tsapatsis@umn.edu FU ADMIRE (Abu Dhabi Minnesota Institute for Research Excellence); UOP LLC; NSF through the NNIN program; DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357]; Abu Dhabi National Oil Company (ADNOC) FX Support for this work was provided by ADMIRE (Abu Dhabi Minnesota Institute for Research Excellence) and by UOP LLC. Part of this work was conducted at the University of Minnesota Characterization Facility, which receives partial support from the NSF through the NNIN program. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under contract no. DE-AC02-06CH11357. M.K. acknowledges support from Abu Dhabi National Oil Company (ADNOC). We thank Rick Knurr (Department of Earth Sciences) for performing ICP-OES and Dr. Wei Zhang for helpful discussions. We thank Dr. Svetlana Mintova and colleagues for helpful discussion, and for providing samples, and demonstration of the freeze-drying procedure reported in ref 26. NR 71 TC 2 Z9 2 U1 11 U2 27 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 28 PY 2016 VL 28 IS 12 BP 4204 EP 4213 DI 10.1021/acs.chemmater.6b00588 PG 10 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100012 ER PT J AU Markus, IM Engelke, S Shirpour, M Asta, M Doeff, M AF Markus, Isaac M. Engelke, Simon Shirpour, Mona Asta, Mark Doeff, Marca TI Experimental and Computational Investigation of Lepidocrocite Anodes for Sodium-Ion Batteries SO CHEMISTRY OF MATERIALS LA English DT Article ID AUGMENTED-WAVE METHOD; MINIMUM ENERGY PATHS; ELASTIC BAND METHOD; LAYER STRUCTURE; SADDLE-POINTS; TITANATE; LITHIUM; SYSTEMS; OXIDES; NA AB In this work, we investigated several titanates with lepidocrocite-type structures (general formula A(x)Ti(1-y)M(y)O(4), with A = Na and M = Li or Mg), having potential utility as anode materials for sodium-ion batteries. First-principles calculations were used to determine key battery metrics, including potential profiles, structural changes during sodiation, and sodium diffusion energy barriers for several compositions, and were compared to experimental results. Site limitations were found to be critical determinants of the gravimetric capacities, which are also affected both by the stacking arrangement of the corrugated layers and the identity of M (Li or Mg). To explain the experimentally observed lattice parameter changes observed as a function of the state of charge, it was necessary to assume the participation of water/solvent during the sodium intercalation process. Sodium diffusion barriers were also found to vary as a function of state of charge and diffusion direction, with a spread of 0.06-1.3 eV at low sodium contents, narrowing to 0.3-0.5 eV at higher sodium contents. Based on these results, strategies for selecting and improving the performance of these electrode materials are suggested. C1 [Markus, Isaac M.; Asta, Mark] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Markus, Isaac M.; Engelke, Simon; Shirpour, Mona; Doeff, Marca] Univ Calif Berkeley, Energy Storage & Distributed Resources Div, Berkeley, CA 94720 USA. [Asta, Mark] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Engelke, Simon] Univ Cambridge, Inst Mfg, Dept Chem, Cambridge, England. [Engelke, Simon] Univ Cambridge, Cambridge Graphene Ctr, Cambridge, England. [Shirpour, Mona] Univ Kentucky, Dept Chem Mat Engn, Lexington, KY USA. RP Markus, IM; Asta, M (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.; Markus, IM (reprint author), Univ Calif Berkeley, Energy Storage & Distributed Resources Div, Berkeley, CA 94720 USA.; Asta, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM isaac.markus@berkeley.edu; mdasta@berkeley.edu OI Doeff, Marca/0000-0002-2148-8047 FU Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation [ACI-1053575]; NSF 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. This work made use of computational resources provided by the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation under Grant No. ACI-1053575. I.M.M. acknowledges the support of the NSF Graduate Research Fellowship Program. S.E. would like to thank Dr. Kristin Persson for financial and research support. NR 34 TC 0 Z9 0 U1 12 U2 35 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 28 PY 2016 VL 28 IS 12 BP 4284 EP 4291 DI 10.1021/acs.chemmater.6b01074 PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100020 ER PT J AU Li, J Liu, CH Li, X Wang, ZQ Shao, YC Wang, SD Sun, XL Pong, WF Guo, JH Sham, TK AF Li, Jun Liu, Chang-Hai Li, Xia Wang, Zhi-Qiang Shao, Yu-Cheng Wang, Sui-Dong Sun, Xue-Liang Pong, Way-Faung Guo, Jing-Hua Sham, Tsun-Kong TI Unraveling the Origin of Visible Light Capture by Core-Shell TiO2 Nanotubes SO CHEMISTRY OF MATERIALS LA English DT Article ID X-RAY-ABSORPTION; TRANSITION-METAL COMPOUNDS; PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; BLACK TIO2; NANOWIRE ARRAYS; CRYSTAL-FIELD; SPECTROSCOPY; WATER; PHOTOACTIVITY AB A black TiO2 nanotube (NT) heterostructure with an anatase-core and an amorphous-shell has been synthesized by NH3 annealing of amorphous NT grown by the anodization of a Ti substrate. Remarkable photoabsorption behavior of these black TiO2 NTs is observed: strong absorption throughout the entire optical wavelength region from ultraviolet to near-infrared. X-ray absorption near-edge structure (XANES), X-ray photoelectron spectroscopy (XPS) and resonant inelastic X-ray scattering (RIXS) have been used to elucidate the origin of this spectacular light capture phenomenon. Surface-sensitive XANES recorded in total electron yield and XPS show that the surface layer is amorphous with a chemical composition approaching that of Ti4O7. Bulk-sensitive XANES using X-ray partial fluorescence yield and Ti 2p RIXS confirm the presence of a rich amount of Ti3+ in the crystalline bulk (core of the NT with anatase structure) of black TiO2 NTs, which exhibits a dispersive d-d energy loss at similar to 2 eV corresponding to the broad visible light absorption at similar to 600 nm. Our results suggest that the extraordinary photoabsorption behavior of these black TiO2 NTs is due to the stabilization of Ti3+ in this special N-doped core-shell assembly having structure varying between TiO2 (bulk anatase) and Ti4O7 (surface, amorphous). C1 [Li, Jun; Wang, Zhi-Qiang; Sham, Tsun-Kong] Univ Western Ontario, Dept Chem, 1151 Richmond St, London, ON N6A 5B7, Canada. [Sham, Tsun-Kong] Univ Western Ontario, Soochow Univ Western Univ Ctr Synchrotron Radiat, 1151 Richmond St, London, ON N6A 5B7, Canada. [Liu, Chang-Hai; Wang, Sui-Dong] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China. [Liu, Chang-Hai; Wang, Sui-Dong] Soochow Univ, Soochow Univ Western Univ Joint Ctr Synchrotron R, Suzhou 215123, Jiangsu, Peoples R China. [Li, Xia; Sun, Xue-Liang] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada. [Shao, Yu-Cheng; Guo, Jing-Hua] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Shao, Yu-Cheng; Sun, Xue-Liang] Tamkang Univ, Dept Phys, New Taipei 25137, Taiwan. [Guo, Jing-Hua] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA. RP Sham, TK (reprint author), Univ Western Ontario, Dept Chem, 1151 Richmond St, London, ON N6A 5B7, Canada.; Sham, TK (reprint author), Univ Western Ontario, Soochow Univ Western Univ Ctr Synchrotron Radiat, 1151 Richmond St, London, ON N6A 5B7, Canada. EM tsham@uwo.ca RI 刘, 长海/F-9445-2013; Sun, Xueliang/C-7257-2012; Li, Jun/I-8384-2012 OI 刘, 长海/0000-0001-6774-5216; Li, Jun/0000-0002-1958-5665 FU Natural Science and Engineering Research Council of Canada (NSERC); Canada Research Chair (CRC) Program; Canada Foundation for Innovation (CFI); Interdisciplinary Initiative (IDI) Grant of the University of Western Ontario (UWO); CFI; NSERC; National Research council (NRC); Canadian Institute for Health Research (CIHR); University of Saskatchewan; Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231]; CLS Graduate Student Travel Support Program FX Research at the University of Western Ontario is supported by the Discovery Grant of the Natural Science and Engineering Research Council of Canada (NSERC), the Canada Research Chair (CRC) Program, the Canada Foundation for Innovation (CFI), and the Interdisciplinary Initiative (IDI) Grant of the University of Western Ontario (UWO). The work at the Canadian Light Source (CLS) is supported by CFI, NSERC, National Research council (NRC), Canadian Institute for Health Research (CIHR), and the University of Saskatchewan. The work at Advanced Light Source is supported by the Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. We would like to thank Dr. T. Regier for technical support at the SGM beamline at CLS, and Mr. W. Xiao and Ms. B. Q Wang for the assistance of sample preparation at UWO. J.L. acknowledges the receipt of support from the CLS Graduate Student Travel Support Program. NR 49 TC 2 Z9 2 U1 24 U2 42 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 28 PY 2016 VL 28 IS 12 BP 4467 EP 4475 DI 10.1021/acs.chemmater.6b01673 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DQ1PO UT WOS:000378973100044 ER PT J AU Agakishiev, G Arnold, O Balanda, A Belver, D Belyaev, A Berger-Chen, JC Blanco, A Bohmer, M Boyard, JL Cabanelas, P Castro, E Chernenko, S Destefanis, M Dohrmann, F Dybczak, A Epple, E Fabbietti, L Fateev, O Finocchiaro, P Fonte, P Friese, J Frohlich, I Galatyuk, T Garzon, JA Gernhauser, R Gilardi, C Gobel, K Golubeva, M Gonzalez-Diaz, D Guber, F Gumberidze, M Heinz, T Hennino, T Holzmann, R Ierusalimov, A Iori, I Ivashkin, A Jurkovic, M Kampfer, B Karavicheva, T Koenig, I Koenig, W Kolb, BW Kornakov, G Kotte, R Krasa, A Krizek, F Krucken, R Kuc, H Kuhn, W Kugler, A Kurepin, A Ladygin, V Lalik, R Lange, JS Lang, S Lapidus, K Lebedev, A Liu, T Lopes, L Lorenz, M Maier, L Mangiarotti, A Markert, J Metag, V Michalska, B Mihaylov, D Michel, J Moriniere, E Mousa, J Muntz, C Munzer, R Naumann, L Pachmayer, YC Palka, M Parpottas, Y Pechenov, V Pechenova, O Pietraszko, J Przygoda, W Ramstein, B Rehnisch, L Reshetin, A Rustamov, A Sadovsky, A Salabura, P Scheib, T Schmah, A Schuldes, H Schwab, E Siebenson, J Sobolev, YG Spataro, S Spruck, B Strobele, H Stroth, J Sturm, C Tarantola, A Teilab, K Tlusty, P Traxler, M Trebacz, R Tsertos, H Vasiliev, T Wagner, V Weber, M Wendisch, C Wirth, J Wisniowski, M Wustenfeld, J Yurevich, S Zanevsky, Y AF Agakishiev, G. Arnold, O. Balanda, A. Belver, D. Belyaev, A. Berger-Chen, J. C. Blanco, A. Boehmer, M. Boyard, J. L. Cabanelas, P. Castro, E. Chernenko, S. Destefanis, M. Dohrmann, F. Dybczak, A. Epple, E. Fabbietti, L. Fateev, O. Finocchiaro, P. Fonte, P. Friese, J. Froehlich, I. Galatyuk, T. Garzon, J. A. Gernhaeuser, R. Gilardi, C. Goebel, K. Golubeva, M. Gonzalez-Diaz, D. Guber, F. Gumberidze, M. Heinz, T. Hennino, T. Holzmann, R. Ierusalimov, A. Iori, I. Ivashkin, A. Jurkovic, M. Kaempfer, B. Karavicheva, T. Koenig, I. Koenig, W. Kolb, B. W. Kornakov, G. Kotte, R. Krasa, A. Krizek, F. Kruecken, R. Kuc, H. Kuehn, W. Kugler, A. Kurepin, A. Ladygin, V. Lalik, R. Lange, J. S. Lang, S. Lapidus, K. Lebedev, A. Liu, T. Lopes, L. Lorenz, M. Maier, L. Mangiarotti, A. Markert, J. Metag, V. Michalska, B. Mihaylov, D. Michel, J. Moriniere, E. Mousa, J. Muentz, C. Muenzer, R. Naumann, L. Pachmayer, Y. C. Palka, M. Parpottas, Y. Pechenov, V. Pechenova, O. Pietraszko, J. Przygoda, W. Ramstein, B. Rehnisch, L. Reshetin, A. Rustamov, A. Sadovsky, A. Salabura, P. Scheib, T. Schmah, A. Schuldes, H. Schwab, E. Siebenson, J. Sobolev, Yu. G. Spataro, S. Spruck, B. Stroebele, H. Stroth, J. Sturm, C. Tarantola, A. Teilab, K. Tlusty, P. Traxler, M. Trebacz, R. Tsertos, H. Vasiliev, T. Wagner, V. Weber, M. Wendisch, C. Wirth, J. Wisniowski, M. Wuestenfeld, J. Yurevich, S. Zanevsky, Y. CA HADES Collaboration TI Statistical hadronization model analysis of hadron yields in p plus Nb and Ar plus KCl at SIS18 energies SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article ID HEAVY-ION COLLISIONS; HYPERON PRODUCTION; COLLECTIVE FLOW; FREEZE-OUT; STRANGE; MATTER AB The HADES data from p + Nb collisions at a center-of-mass energy of root s(NN) = 3.2 GeV are analyzed employing a statistical hadronization model. The model can successfully describe the production yields of the identified hadrons pi(0), eta, Lambda, K-s(0), omega with parameters T-chem = (99 +/- 11) MeV and mu(b) = (619 +/- 34) MeV, which fit well into the chemical freeze-out systematics found in heavy-ion collisions. In addition, we reanalyze our previous HADES data from Ar + KCl collisions at root s(NN) = 2.6 GeV with an updated version of the model. We address equilibration in heavy-ion collisions by testing two aspects: the description of yields and the regularity of freeze-out parameters from a statistical model fit as a function of colliding energy and system size. Despite its success, the model fails to describe the observed Xi(-) yields in both, p + Nb and Ar + KCl. Special emphasis is put on feed-down contributions from higher-lying resonance states as a possible explanation for the observed excess. C1 [Finocchiaro, P.] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95125 Catania, Italy. [Blanco, A.; Fonte, P.; Lopes, L.; Mangiarotti, A.] LIP Lab Instrumentacao & Fis Expt Particulas, P-3004516 Coimbra, Portugal. [Balanda, A.; Dybczak, A.; Kuc, H.; Michalska, B.; Palka, M.; Przygoda, W.; Salabura, P.; Trebacz, R.; Wisniowski, M.] Jagiellonian Univ Cracow, Smoluchowski Inst Phys, PL-30059 Krakow, Poland. [Heinz, T.; Holzmann, R.; Koenig, I.; Koenig, W.; Kolb, B. W.; Lang, S.; Pechenov, V.; Pietraszko, J.; Schwab, E.; Stroth, J.; Sturm, C.; Traxler, M.; Wendisch, C.; Yurevich, S.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany. [Galatyuk, T.; Gonzalez-Diaz, D.; Gumberidze, M.; Kornakov, G.] Tech Univ Darmstadt, D-64289 Darmstadt, Germany. [Dohrmann, F.; Kaempfer, B.; Kotte, R.; Naumann, L.; Wuestenfeld, J.] Helmholtz Zentrum Dresden Rossendorf, Inst Strahlenphys, D-01314 Dresden, Germany. [Agakishiev, G.; Belyaev, A.; Chernenko, S.; Fateev, O.; Ierusalimov, A.; Ladygin, V.; Vasiliev, T.; Zanevsky, Y.] Joint Inst Nucl Res, Dubna 141980, Russia. [Froehlich, I.; Goebel, K.; Lorenz, M.; Markert, J.; Michel, J.; Muentz, C.; Pachmayer, Y. C.; Pechenova, O.; Rehnisch, L.; Rustamov, A.; Scheib, T.; Schuldes, H.; Stroebele, H.; Stroth, J.; Tarantola, A.; Teilab, K.] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany. [Arnold, O.; Berger-Chen, J. C.; Epple, E.; Fabbietti, L.; Lalik, R.; Lapidus, K.; Mihaylov, D.; Muenzer, R.; Wirth, J.] Excellence Cluster Origin & Struct Universe, D-85748 Garching, Germany. [Arnold, O.; Berger-Chen, J. C.; Boehmer, M.; Epple, E.; Fabbietti, L.; Friese, J.; Gernhaeuser, R.; Jurkovic, M.; Kruecken, R.; Lalik, R.; Lapidus, K.; Maier, L.; Mihaylov, D.; Muenzer, R.; Siebenson, J.; Weber, M.; Wirth, J.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany. [Destefanis, M.; Gilardi, C.; Kuehn, W.; Lange, J. S.; Metag, V.; Spruck, B.] Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany. [Iori, I.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. [Golubeva, M.; Guber, F.; Ivashkin, A.; Karavicheva, T.; Kurepin, A.; Reshetin, A.; Sadovsky, A.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. [Lebedev, A.] Inst Theoret & Expt Phys, Moscow 117218, Russia. [Mousa, J.; Parpottas, Y.; Tsertos, H.] Univ Cyprus, Dept Phys, CY-1678 Nicosia, Cyprus. [Boyard, J. L.; Hennino, T.; Kuc, H.; Liu, T.; Moriniere, E.; Ramstein, B.] Univ Paris 11, CNRS, IN2P3, Inst Phys Nucl,UMR 8608, F-91406 Orsay, France. [Krasa, A.; Krizek, F.; Kugler, A.; Sobolev, Yu. G.; Tlusty, P.; Wagner, V.] Acad Sci Czech Republic, Inst Nucl Phys, Rez 25068, Czech Republic. [Belver, D.; Cabanelas, P.; Castro, E.; Garzon, J. A.] Univ Santiago de Compostela, LabCAF F Fis, Santiago De Compostela 15706, Spain. [Schmah, A.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Spataro, S.] Univ Torino, Dipartimento Fis, I-10125 Turin, Italy. [Spataro, S.] Univ Torino, Ist Nazl Fis Nucl, I-10125 Turin, Italy. [Fonte, P.] ISEC Coimbra, Coimbra, Portugal. [Galatyuk, T.; Gumberidze, M.] ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany. [Iori, I.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Kaempfer, B.] Tech Univ Dresden, D-01062 Dresden, Germany. [Parpottas, Y.] Frederick Univ, CY-1036 Nicosia, Cyprus. RP Lorenz, M (reprint author), Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany. EM m.lorenz@gsi.de RI Mangiarotti, Alessio/I-1072-2012; Kruecken, Reiner/A-1640-2013; Fonte, Paulo/B-1842-2008; Gobel, Kathrin/B-8531-2016; Cabanelas, Pablo/B-2034-2016; OI Mangiarotti, Alessio/0000-0001-7837-6057; Kruecken, Reiner/0000-0002-2755-8042; Fonte, Paulo/0000-0002-2275-9099; Gobel, Kathrin/0000-0003-2832-8465; Tsertos, Charalambos/0000-0001-5966-343X; Cabanelas, Pablo/0000-0002-5416-4647; Finocchiaro, Paolo/0000-0001-7502-2229 FU LIP Coimbra, Coimbra (Portugal) [PTDC/FIS/113339/2009]; SIP JUC Cracow, Cracow (Poland) NCN [2013/10/M/ST2/00042, N N202 286038, NN202198639 01-OCT-2010]; Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany) BMBF [06DR9059D]; TU Munchen, Garching (Germany); MLL Munchen DFG EClust [153 VH-NG-330]; BMBF [06MT9156 TP5 GSI TMKrue 1012 NPI AS CR]; Rez, Rez (Czech Republic) [MSMT LC07050 GAASCR IAA100480803]; USC - S. de Compostela, Santiago de Compostela (Spain) [CPAN: CSD200700042]; Goethe-University, Frankfurt (Germany); HA216/EMMI HIC for FAIR (LOEWE) BMBF [06FY9100I, HP3-283286]; Humboldt Foundation FX The authors acknowledge LIP Coimbra, Coimbra (Portugal) PTDC/FIS/113339/2009 SIP JUC Cracow, Cracow (Poland) NCN grant 2013/10/M/ST2/00042, N N202 286038 28-JAN-2010 NN202198639 01-OCT-2010 Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany) BMBF 06DR9059D TU Munchen, Garching (Germany) MLL Munchen DFG EClust 153 VH-NG-330 BMBF 06MT9156 TP5 GSI TMKrue 1012 NPI AS CR, Rez, Rez (Czech Republic) MSMT LC07050 GAASCR IAA100480803 USC - S. de Compostela, Santiago de Compostela (Spain) CPAN: CSD200700042 Goethe-University, Frankfurt (Germany) HA216/EMMI HIC for FAIR (LOEWE) BMBF: 06FY9100I GSI FE EU Contract No. HP3-283286. One of us (ML) acknowledges the support of the Humboldt Foundation. NR 65 TC 1 Z9 1 U1 3 U2 8 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 EI 1434-601X J9 EUR PHYS J A JI Eur. Phys. J. A PD JUN 28 PY 2016 VL 52 IS 6 AR 178 DI 10.1140/epja/i2016-16178-x PG 10 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DQ3RA UT WOS:000379118400004 ER PT J AU Hofmann, S Heinz, S Mann, R Maurer, J Munzenberg, G Antalic, S Barth, W Burkhard, HG Dahl, L Eberhardt, K Grzywacz, R Hamilton, JH Henderson, RA Kenneally, JM Kindler, B Kojouharov, I Lang, R Lommel, B Miernik, K Miller, D Moody, KJ Morita, K Nishio, K Popeko, AG Roberto, JB Runke, J Rykaczewski, KP Saro, S Scheidenberger, C Schott, HJ Shaughnessy, DA Stoyer, MA Thorle-Pospiech, P Tinschert, K Trautmann, N Uusitalo, J Yeremin, AV AF Hofmann, S. Heinz, S. Mann, R. Maurer, J. Muenzenberg, G. Antalic, S. Barth, W. Burkhard, H. G. Dahl, L. Eberhardt, K. Grzywacz, R. Hamilton, J. H. Henderson, R. A. Kenneally, J. M. Kindler, B. Kojouharov, I. Lang, R. Lommel, B. Miernik, K. Miller, D. Moody, K. J. Morita, K. Nishio, K. Popeko, A. G. Roberto, J. B. Runke, J. Rykaczewski, K. P. Saro, S. Scheidenberger, C. Schoett, H. J. Shaughnessy, D. A. Stoyer, M. A. Thoerle-Pospiech, P. Tinschert, K. Trautmann, N. Uusitalo, J. Yeremin, A. V. TI Review of even element super-heavy nuclei and search for element 120 SO EUROPEAN PHYSICAL JOURNAL A LA English DT Review ID VELOCITY FILTER SHIP; ION FUSION PRODUCTS; FISSION HALF-LIVES; HEAVIEST ELEMENTS; SHELL STRUCTURE; BUBBLE NUCLEI; ALPHA-DECAY; MASSES; STABILITY; ISOTOPES AB The reaction Cr-54 + Cm-248 was investigated at the velocity filter SHIP at GSI, Darmstadt, with the intention to study production and decay properties of isotopes of element 120. Three correlated signals were measured, which occurred within a period of 279 ms. The heights of the signals correspond with the expectations for a decay sequence starting with an isotope of element 120. However, a complete decay chain cannot be established, since a signal from the implantation of the evaporation residue cannot be identified unambiguously. Measured properties of the event chain are discussed in detail. The result is compared with theoretical predictions. Previously measured decay properties of even element super-heavy nuclei were compiled in order to find arguments for an assignment from the systematics of experimental data. In the course of this review, a few tentatively assigned data could be corrected. New interpretations are given for results which could not be assigned definitely in previous studies. The discussion revealed that the cross-section for production of element 120 could be high enough so that a successful experiment seems possible with presently available techniques. However, a continuation of the experiment at SHIP for a necessary confirmation of the results obtained in a relatively short irradiation of five weeks is not possible at GSI presently. Therefore, we decided to publish the results of the measurement and of the review as they exist now. In the summary and outlook section we also present concepts for the continuation of research in the field of super-heavy nuclei. C1 [Hofmann, S.; Heinz, S.; Mann, R.; Maurer, J.; Muenzenberg, G.; Barth, W.; Burkhard, H. G.; Dahl, L.; Kindler, B.; Kojouharov, I.; Lang, R.; Lommel, B.; Runke, J.; Scheidenberger, C.; Schoett, H. J.; Tinschert, K.] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany. [Hofmann, S.] Goethe Univ Frankfurt, Inst Phys, D-60438 Frankfurt, Germany. [Muenzenberg, G.] Manipal Univ, Manipal Ctr Nat Sci, Manipal 576104, Karnataka, India. [Antalic, S.; Saro, S.] Comenius Univ, Dept Nucl Phys & Biophys, Bratislava 84248, Slovakia. [Eberhardt, K.; Thoerle-Pospiech, P.; Trautmann, N.] Johannes Gutenberg Univ Mainz, D-55128 Mainz, Germany. [Grzywacz, R.; Miernik, K.; Roberto, J. B.; Rykaczewski, K. P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Grzywacz, R.; Miller, D.] Univ Tennessee, Knoxville, TN 37996 USA. [Hamilton, J. H.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Henderson, R. A.; Kenneally, J. M.; Moody, K. J.; Shaughnessy, D. A.; Stoyer, M. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Miernik, K.] Univ Warsaw, Warsaw, Poland. [Morita, K.] RIKEN Nishina Ctr Accelerator Based Sci, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. [Nishio, K.] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan. [Popeko, A. G.; Yeremin, A. V.] Joint Inst Nucl Res, Dubna 141980, Russia. [Uusitalo, J.] Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland. RP Hofmann, S (reprint author), GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany. EM S.Hofmann@gsi.de FU U.S. Department of Energy [DE-AC05-00OR2272, DE-AC52-07NA27344, DE-FG-05-88ER40407]; Slovak grant agency VEGA [1/0576/13]; Slovak Research and Development Agency [APVV-0105-10] FX We acknowledge support of the U.S. Department of Energy through Contracts No. DE-AC05-00OR2272 (OR-NL) and No. DE-AC52-07NA27344 (LLNL), and Grants No. DE-FG-05-88ER40407 (Vanderbilt University). SA acknowledges support from the Slovak grant agency VEGA (contract No. 1/0576/13) and the Slovak Research and Development Agency (contract No. APVV-0105-10). NR 146 TC 15 Z9 15 U1 17 U2 24 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 EI 1434-601X J9 EUR PHYS J A JI Eur. Phys. J. A PD JUN 28 PY 2016 VL 52 IS 6 AR 180 DI 10.1140/epja/i2016-16180-4 PG 34 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DQ3RA UT WOS:000379118400006 ER PT J AU Jiang, PQ Lindsay, L Koh, YK AF Jiang, Puqing Lindsay, Lucas Koh, Yee Kan TI Role of low-energy phonons with mean-free-paths > 0.8 mu m in heat conduction in silicon SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID TIME-DOMAIN THERMOREFLECTANCE; THERMAL-CONDUCTIVITY; ULTRASONIC-ATTENUATION; THIN-FILMS; SCATTERING; TRANSPORT; GE; SI; THICKNESS; DENSITY AB Despite recent progress in the first-principles calculations and measurements of phonon mean-free-paths (l), contribution of low-energy phonons to heat conduction in silicon is still inconclusive, as exemplified by the discrepancies as large as 30% between different first-principles calculations. Here, we investigate the contribution of low-energy phonons with l > 0.8 mu m by accurately measuring the cross-plane thermal conductivity (Lambda(cross)) of crystalline silicon films by time-domain thermoreflectance (TDTR), over a wide range of film thicknesses 1 <= h(f) <= 10 mu m and temperatures 100 <= T <= 300 K. We employ a dual-frequency TDTR approach to improve the accuracy of our Lambda(cross) measurements. We find from our Lambda(cross) measurements that phonons with l > 0.8 mu m contribute 53 W m(-1) K-1 (37%) to heat conduction in natural Si at 300 K, while phonons with l > 3 mu m contribute 523 W m(-1) K-1 (61%) at 100 K, > 20% lower than first-principles predictions of 68 W m(-1) K-1 (47%) and 717 W m(-1) K-1 (76%), respectively. Using a relaxation time approximation model, we demonstrate that macroscopic damping (e.g., Akhieser's damping) eliminates the contribution of phonons with mean-free-paths >20 mu m at 300 K, which contributes 15 W m(-1) K-1 (10%) to calculated heat conduction in Si. Thus, we propose that omission of the macroscopic damping for low-energy phonons in the first-principles calculations could be one of the possible explanations for the observed differences between our measurements and calculations. Our work provides an important benchmark for future measurements and calculations of the distribution of phonon mean-free-paths in crystalline silicon. Published by AIP Publishing. C1 [Jiang, Puqing; Koh, Yee Kan] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore. [Lindsay, Lucas] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Koh, YK (reprint author), Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore. EM mpekyk@nus.edu.sg RI Koh, Yee Kan/A-8893-2010; Lindsay, Lucas/C-9221-2012 OI Koh, Yee Kan/0000-0002-4156-6209; Lindsay, Lucas/0000-0001-9645-7993 FU Singapore Ministry of Education Academic Research Fund Tier 1 Start-up Grant; Singapore Ministry of Education Academic Research Fund Tier 2 [MOE2013-T2-2-147]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division FX We sincerely thank R. B. Wilson. Professor D. A. Broido, and Professor D. G. Cahill for many useful discussions. This material is based upon work supported by the Singapore Ministry of Education Academic Research Fund Tier 1 Start-up Grant and Singapore Ministry of Education Academic Research Fund Tier 2, under Award No MOE2013-T2-2-147. L.L. acknowledges support from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. NR 64 TC 4 Z9 4 U1 9 U2 12 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 28 PY 2016 VL 119 IS 24 AR 245705 DI 10.1063/1.4954674 PG 9 WC Physics, Applied SC Physics GA DQ4HD UT WOS:000379163800059 ER PT J AU Zhang, LM Jiang, WL Dissanayake, A Peng, JX Ai, WS Zhang, JD Zhu, ZH Wang, TS Shutthanandan, V AF Zhang, Limin Jiang, Weilin Dissanayake, Amila Peng, Jinxin Ai, Wensi Zhang, Jiandong Zhu, Zihua Wang, Tieshan Shutthanandan, Vaithiyalingam TI Lattice damage and compositional changes in Xe ion irradiated InxGa1-xN (x=0.32-1.0) single crystals SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID STRUCTURAL DAMAGE; GAN; NITRIDES; IMPLANTATION; BOMBARDMENT; DEFECTS; INGAN AB Lattice disorder and compositional changes in InxGa1-xN (x = 0.32, 0.47, 0.7, 0.8, and 1.0) films on GaNAl2O3 substrates, induced by room-temperature irradiation of 5MeV Xe ions, have been investigated using both Rutherford backscattering spectrometry under ion-channeling conditions and time-of-flight secondary ion mass spectrometry. The results show that for a fluence of 3 x 10(13) cm(-2), the relative level of lattice disorder in InxGa1-xN increases monotonically from 59% to 90% with increasing indium concentration x from 0.32 to 0.7; a further increase in x up to 1.0 leads to little increase in the disorder level. In contrast to Ga-rich InxGa1-xN (x = 0.32 and 0.47), significant volume swelling of up to similar to 25% accompanied with oxidation in In-rich InxGa1-xN (x = 0.7, 0.8, and 1.0) is observed. In addition, irradiation-induced atomic mixing occurs at the interface of In-rich InxGa1-xN and GaN. The results from this study indicate an extreme susceptibility of the high In-content InxGa1-xN to heavy-ion irradiation, and suggest that cautions must be exercised in applying ion-implantation techniques to these materials at room temperature. Further studies of the irradiation behavior at elevated temperatures are warranted. Published by AIP Publishing. C1 [Zhang, Limin; Peng, Jinxin; Ai, Wensi; Zhang, Jiandong; Wang, Tieshan] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China. [Jiang, Weilin; Dissanayake, Amila; Zhu, Zihua; Shutthanandan, Vaithiyalingam] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Zhang, LM (reprint author), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China. EM zhanglm@lzu.edu.cn RI Zhu, Zihua/K-7652-2012 FU National Natural Science Foundation of China [11305081]; DOE's Office of Biological and Environmental Research; China Scholarship Council FX This work was supported by the National Natural Science Foundation of China (Grant No. 11305081). A part of the research was performed under a general proposal at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by DOE's Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory (PNNL). The authors also thank the staff of 320kV platform at the Institute of Modern Physics, Chinese Academy of Sciences for the support of the ion irradiation. L. Zhang was financially supported by China Scholarship Council during his visit to PNNL. NR 29 TC 1 Z9 1 U1 2 U2 5 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 28 PY 2016 VL 119 IS 24 AR 245704 DI 10.1063/1.4954691 PG 7 WC Physics, Applied SC Physics GA DQ4HD UT WOS:000379163800058 ER PT J AU Kokkin, DL Ma, TM Steimle, T Sears, TJ AF Kokkin, Damian L. Ma, Tongmei Steimle, Timothy Sears, Trevor J. TI Detection and characterization of singly deuterated silylene, SiHD, via optical spectroscopy SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID LASER-INDUCED-FLUORESCENCE; POTENTIAL-ENERGY SURFACES; INDIVIDUAL ROVIBRONIC LEVELS; LOW-LYING STATES; ABSORPTION-SPECTROSCOPY; ELECTRONIC STATES; (B)OVER-TILDE(1)A(1) STATE; VIBRATIONAL-SPECTRUM; POLYATOMIC-MOLECULES; 1ST OBSERVATION AB Singly deuterated silylene has been detected and characterized in the gas-phase using high-resolution, two-dimensional, optical spectroscopy. Rotationally resolved lines in the 0(0)(0)(X) over tilde (1)A' -> (A) over tilde (1)A '' band are assigned to both c-type perpendicular transition and additional parallel, axis-switching induced bands. The extracted rotational constants were combined with those for SiH2 and SiD2 to determine an improved equilibrium bond length, r(SiH), and bond angle, theta, of 1.5137 +/- 0.0003 angstrom and 92.04 degrees +/- 0.05 degrees, and 1.4853 +/- 0.0005 angstrom and 122.48 degrees +/- 0.08 degrees for the (X) over tilde (1)A' (0,0,0) and (A) over tilde (1)A ''(0,0,0) state respectively. The dispersed fluorescence consists of a long progression in the (A) over tilde (1)A ''(0,0,0) -> (X) over tilde (1)A'(0, nu(2), 0) emission which was analyzed to produce vibrational parameters. A strong quantum level dependence of the rotationally resolved radiative decay curves is analyzed. Published by AIP Publishing. C1 [Kokkin, Damian L.; Ma, Tongmei; Steimle, Timothy] Arizona State Univ, Sch Mol Sci, Tempe, AZ 85287 USA. [Sears, Trevor J.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Sears, Trevor J.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. RP Steimle, T (reprint author), Arizona State Univ, Sch Mol Sci, Tempe, AZ 85287 USA. EM TSteimle@ASU.edu OI Sears, Trevor/0000-0002-5559-0154 FU National Science Foundation, Division of Chemistry [CHE-1265885] FX This research has been supported by the National Science Foundation, Division of Chemistry, CHE-1265885 (ASU). NR 75 TC 0 Z9 0 U1 4 U2 9 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 28 PY 2016 VL 144 IS 24 AR 244304 DI 10.1063/1.4954702 PG 13 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DQ4HZ UT WOS:000379166100024 PM 27369512 ER PT J AU Lu, CY Perez, D Voter, AF AF Lu, Chun-Yaung Perez, Danny Voter, Arthur F. TI Accelerating ring-polymer molecular dynamics with parallel-replica dynamics SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID STATISTICAL-MECHANICS; STAINLESS-STEEL; HELIUM; HYDROGEN; IRON; EMBRITTLEMENT; IRRADIATION; NICKEL; ALLOYS AB Nuclear quantum effects are important for systems containing light elements, and the effects are more prominent in the low temperature regime where the dynamics also becomes sluggish. We show that parallel replica (ParRep) dynamics, an accelerated molecular dynamics approach for infrequent-event systems, can be effectively combined with ring-polymer molecular dynamics, a semiclassical trajectory approach that gives a good approximation to zero-point and tunneling effects in activated escape processes. The resulting RP-ParRep method is a powerful tool for reaching long time scales in complex infrequent-event systems where quantum dynamics are important. Two illustrative examples, symmetric Eckart barrier crossing and interstitial helium diffusion in Fe and Fe-Cr alloy, are presented to demonstrate the accuracy and long-time scale capability of this approach. Published by AIP Publishing. C1 [Lu, Chun-Yaung] Stanford Univ, Dept Energy Resources Engn, Stanford, CA 94305 USA. [Perez, Danny; Voter, Arthur F.] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. RP Voter, AF (reprint author), Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. EM afv@lanl.gov OI Voter, Arthur/0000-0001-9788-7194 FU United States Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division; U.S. DOE [DE-AC52-06NA25396] FX This work was supported by the United States Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. LANL is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. DOE under Contract No. DE-AC52-06NA25396. C.Y.L. thanks Professor Chia-Chun Chou and Yu-Tzu Li for helpful comments. NR 50 TC 1 Z9 1 U1 2 U2 5 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 28 PY 2016 VL 144 IS 24 AR 244109 DI 10.1063/1.4954311 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DQ4HZ UT WOS:000379166100011 PM 27369499 ER PT J AU Roden, JJJ Bennett, DIG Whaley, KB AF Roden, Jan J. J. Bennett, Doran I. G. Whaley, K. Birgitta TI Long-range energy transport in photosystem II SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID LIGHT-HARVESTING COMPLEX; PHOTOSYNTHETIC PURPLE BACTERIA; QUANTUM COHERENCE; CRYSTAL-STRUCTURE; ANTENNA SYSTEM; LHCII COMPLEX; SPECTROSCOPY; DYNAMICS; SUPERCOMPLEXES; TEMPERATURE AB We simulate the long-range inter-complex electronic energy transfer in photosystem II-from the antenna complex, via a core complex, to the reaction center-using a non-Markovian (ZOFE) quantum master equation description that allows the electronic coherence involved in the energy transfer to be explicitly included at all length scales. This allows us to identify all locations where coherence is manifested and to further identify the pathways of the energy transfer in the full network of coupled chromophores using a description based on excitation probability currents. We investigate how the energy transfer depends on the initial excitation-localized, coherent initial excitation versus delocalized, incoherent initial excitation-and find that the overall energy transfer is remarkably robust with respect to such strong variations of the initial condition. To explore the importance of vibrationally enhanced transfer and to address the question of optimization in the system parameters, we systematically vary the strength of the coupling between the electronic and the vibrational degrees of freedom. We find that the natural parameters lie in a (broad) region that enables optimal transfer efficiency and that the overall long-range energy transfer on a ns time scale appears to be very robust with respect to variations in the vibronic coupling of up to an order of magnitude. Nevertheless, vibrationally enhanced transfer appears to be crucial to obtain a high transfer efficiency, with the latter falling sharply for couplings outside the optimal range. Comparison of our full quantum simulations to results obtained with a "classical" rate equation based on a modified-Redfield/generalized-Forster description previously used to simulate energy transfer dynamics in the entire photosystem II complex shows good agreement for the overall time scales of excitation energy transport. Published by AIP Publishing. C1 [Roden, Jan J. J.; Bennett, Doran I. G.; Whaley, K. Birgitta] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Roden, Jan J. J.; Whaley, K. Birgitta] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Roden, JJJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Roden, JJJ (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM jan.roden@gmx.com OI Roden, Jan/0000-0002-0846-4315 FU DARPA [N66001-09-1-2026]; U.S. Department of Energy (DOE) through the SciDAC program at Lawrence Berkeley National Laboratory FX This material was supported by DARPA under Award No. N66001-09-1-2026 and in part by the U.S. Department of Energy (DOE) through the SciDAC program at Lawrence Berkeley National Laboratory. J. J. R. thanks the Whaley group for helpful discussions. This work was posted to the Cornell preprint archive on January 27, 2015, with identifier arXiv:1501.06674. A related work focusing on the role of reorganization energy in energy transfer efficiency was subsequently posted at arXiv: 1502.02657. NR 71 TC 0 Z9 0 U1 13 U2 33 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 28 PY 2016 VL 144 IS 24 AR 245101 DI 10.1063/1.4953243 PG 25 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DQ4HZ UT WOS:000379166100055 PM 27369543 ER PT J AU Balitsky, I Tarasov, A AF Balitsky, I. Tarasov, A. TI Gluon TMD in particle production from low to moderate x SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Deep Inelastic Scattering (Phenomenology); QCD Phenomenology ID COLOR GLASS CONDENSATE; NONLOCAL OPERATOR EXPANSION; TRANSVERSE-SPIN ASYMMETRIES; INITIAL-STATE RADIATION; DRELL-YAN; RENORMALIZATION-GROUP; PARTON DISTRIBUTION; SIVERS ASYMMETRIES; E+E-ANNIHILATION; BOSON PRODUCTION AB We study the rapidity evolution of gluon transverse momentum dependent distributions appearing in processes of particle production and show how this evolution changes from small to moderate Bjorken x. C1 [Balitsky, I.] Old Dominion Univ, Dept Phys, 4600 Elkhorn Ave, Norfolk, VA 23529 USA. [Balitsky, I.; Tarasov, A.] Jefferson Lab, Theory Grp, 12000 Jefferson Ave, Newport News, VA 23606 USA. RP Balitsky, I (reprint author), Old Dominion Univ, Dept Phys, 4600 Elkhorn Ave, Norfolk, VA 23529 USA.; Balitsky, I (reprint author), Jefferson Lab, Theory Grp, 12000 Jefferson Ave, Newport News, VA 23606 USA. EM balitsky@jlab.org; atarasov@jlab.org FU Jefferson Science Associates, LLC [DE-AC05-06OR23177]; [DE-FG02-97ER41028] FX The authors are grateful to G.A. Chirilli, J.C. Collins, Yu. Kovchegov, A. Prokudin, A.V. Radyushkin, T. Rogers, and F. Yuan for valuable discussions. This work was supported by contract DE-AC05-06OR23177 under which the Jefferson Science Associates, LLC operate the Thomas Jefferson National Accelerator Facility, and by the grant DE-FG02-97ER41028. NR 65 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD JUN 28 PY 2016 IS 6 AR 164 DI 10.1007/JHEP06(2016)164 PG 40 WC Physics, Particles & Fields SC Physics GA DQ2OO UT WOS:000379042200003 ER PT J AU Oakdale, JS Kwisnek, L Fokin, VV AF Oakdale, James S. Kwisnek, Luke Fokin, Valery V. TI Selective and Orthogonal Post-Polymerization Modification using Sulfur(VI) Fluoride Exchange (SuFEx) and Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC) Reactions SO MACROMOLECULES LA English DT Article ID CLICK CHEMISTRY; POSTPOLYMERIZATION MODIFICATION; ARYL FLUOROSULFONATES; COUPLING REACTIONS; DIELS-ALDER; COPOLYMERS; POLYMERS; SURFACE; ENE AB Functional polystyrenes and polyacrylamides, containing combinations of fluorosulfate, aromatic silyl ether, and azide side chains, were used as scaffolds to demonstrate the postpolymerization modification capabilities of sulfur(VI) fluoride exchange (SuFEx) and CuAAC chemistries. Fluorescent dyes bearing appropriate functional groups were sequentially attached to the backbone of the copolymers, quantitatively and selectively addressing their reactive partners. This combined SuFEx and CuAAC approach proved to be robust and versatile, allowing for a rare accomplishment: triple orthogonal functionalization of a copolymer under essentially ambient conditions without protecting groups. C1 [Fokin, Valery V.] Univ So Calif, Bridge, 837 Bloom Walk, Los Angeles, CA 90089 USA. Univ So Calif, Loker Hydrocarbon Res Inst, Dept Chem, 837 Bloom Walk, Los Angeles, CA 90089 USA. [Oakdale, James S.] Lawrence Livermore Natl Lab, Div Mat Sci, 7000 East Ave, Livermore, CA 94550 USA. [Kwisnek, Luke] DSM Funct Mat, 1122 St Charles St, Elgin, IL 60120 USA. RP Fokin, VV (reprint author), Univ So Calif, Bridge, 837 Bloom Walk, Los Angeles, CA 90089 USA. EM fokin@usc.edu FU National Science Foundation [CHE-1302043] FX This work was supported by the National Science Foundation (CHE-1302043). J.S.O. acknowledges a graduate fellowship from the National Science Foundation. NR 38 TC 4 Z9 4 U1 13 U2 27 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 EI 1520-5835 J9 MACROMOLECULES JI Macromolecules PD JUN 28 PY 2016 VL 49 IS 12 BP 4473 EP 4479 DI 10.1021/acs.macromol.6b00101 PG 7 WC Polymer Science SC Polymer Science GA DQ1PP UT WOS:000378973200010 ER PT J AU Fan, F Wang, WY Holt, AP Feng, HB Uhrig, D Lu, XY Hong, T Wang, YY Kang, NG Mays, J Sokolov, AP AF Fan, Fei Wang, Weiyu Holt, Adam P. Feng, Hongbo Uhrig, David Lu, Xinyi Hong, Tao Wang, Yangyang Kang, Nam-Goo Mays, Jimmy Sokolov, Alexei P. TI Effect of Molecular Weight on the Ion Transport Mechanism in Polymerized Ionic Liquids SO MACROMOLECULES LA English DT Article ID GLASS-TRANSITION TEMPERATURE; WALDEN PLOT ANALYSIS; VISCOELASTIC BEHAVIOR; PERCHLORATE COMPLEXES; DIELECTRIC-RELAXATION; STRUCTURAL RELAXATION; SEGMENTAL DYNAMICS; THERMAL-PROPERTIES; BLOCK-COPOLYMERS; CHARGE-DENSITIES AB The unique properties of ionic liquids (ILs) have made them promising candidates for electrochemical applications. Polymerization of the corresponding ILs results in a new class of materials called polymerized ionic liquids (PolyILs). Though PolyILs offer the possibility to combine the high conductivity of ILs and the high mechanical strength of polymers, their conductivities are typically much lower than that of the corresponding small molecule ILs. In the present work, seven PolyILs were synthesized having degrees of polymerization ranging from 1 to 333, corresponding to molecular weights (MW) from 482 to 160 400 g/mol. Depolarized dynamic light scattering, broadband dielectric spectroscopy, rheology, and differential scanning calorimetry were employed to systematically study the influence of MW on the mechanism of ionic transport and segmental dynamics in these materials. The modified Walden plot analysis reveals that the ion conductivity transforms from being closely coupled with structural relaxation to being strongly decoupled from it as MW increases. C1 [Fan, Fei; Feng, Hongbo; Lu, Xinyi; Hong, Tao; Kang, Nam-Goo; Mays, Jimmy; Sokolov, Alexei P.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Holt, Adam P.; Sokolov, Alexei P.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Wang, Weiyu; Uhrig, David; Wang, Yangyang] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Mays, Jimmy; Sokolov, Alexei P.] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA. RP Fan, F (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. EM ffan@vols.utk.edu RI Wang, Weiyu/A-6317-2016; Wang, Yangyang/A-5925-2010 OI Wang, Weiyu/0000-0002-2914-1638; Wang, Yangyang/0000-0001-7042-9804 FU U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division; NSF Polymer Program [DMR-1408811] FX The authors thank Dr. J. C. Johnson for helping with the synthesis of IL-1. The do/dc measurements were conducted at the Center for Nanophase Materials Sciences at Oak Ridge National Laboratory (ORNL). The authors thank Dr. H. M. Meyer III for performing the X-ray photoelectron spectroscopy measurements at High Temperature Materials Laboratory at ORNL. A.P.S. and J.M. acknowledge the financial support by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. F.F. and A.P.H. thank the NSF Polymer Program (DMR-1408811) for funding. NR 92 TC 2 Z9 2 U1 17 U2 37 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 EI 1520-5835 J9 MACROMOLECULES JI Macromolecules PD JUN 28 PY 2016 VL 49 IS 12 BP 4557 EP 4570 DI 10.1021/acs.macromol.6b00714 PG 14 WC Polymer Science SC Polymer Science GA DQ1PP UT WOS:000378973200018 ER PT J AU Guo, CH Lee, Y Lin, YH Strzalka, J Wang, C Hexemer, A Jaye, C Fischer, DA Verduzco, R Wang, Q Gomez, ED AF Guo, Changhe Lee, Youngmin Lin, Yen-Hao Strzalka, Joseph Wang, Cheng Hexemer, Alexander Jaye, Chemo Fischer, Daniel A. Verduzco, Rafael Wang, Qing Gomez, Enrique D. TI Photovoltaic Performance of Block Copolymer Devices Is Independent of the Crystalline Texture in the Active Layer SO MACROMOLECULES LA English DT Article ID POLYMER SOLAR-CELLS; FIELD-EFFECT MOBILITY; X-RAY-SCATTERING; THIN-FILMS; MOLECULAR-ORIENTATION; CHARGE-TRANSPORT; ORGANIC PHOTOVOLTAICS; MORPHOLOGY CONTROL; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); HETEROJUNCTION AB The electronic properties of organic semiconductors are strongly influenced by intermolecular packing. When cast as thin films, crystalline pi-conjugated molecules are strongly textured, potentially leading to anisotropic charge transport. Consequently, it is hypothesized that the orientation of crystallites in the active layer plays an important role in charge extraction and organic photovoltaic device performance. Here we demonstrate orientation control of molecular packing from mostly face-on to edge-on configurations in the active layer of P3HT-b-PFTBT block copolymer photovoltaics using 1-chloronaphthalene as a solvent additive. The effect of molecular orientations in P3HT crystals on charge transport and solar cell performance is examined. We find that optimized photovoltaic device performance is independent of the crystalline texture of P3HT. Our observations provide further insights into the molecular organization required for efficient charge transport and overall device efficiencies. The dominant crystal orientation, whether face-on or edge-on, is not critical to block copolymer solar cells. Instead, a broad distribution of crystallite orientations ensures pathways for charge transport in any direction and enables efficient charge extraction in photovoltaic devices. C1 [Guo, Changhe; Lee, Youngmin; Gomez, Enrique D.] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA. [Gomez, Enrique D.] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. [Wang, Qing] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA. [Lin, Yen-Hao; Verduzco, Rafael] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA. [Strzalka, Joseph] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Wang, Cheng; Hexemer, Alexander] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Jaye, Chemo; Fischer, Daniel A.] NIST, Mat Sci & Engn Lab, Gaithersburg, MD 20899 USA. RP Gomez, ED (reprint author), Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA.; Gomez, ED (reprint author), Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. EM edg12@psu.edu RI Wang, Cheng/A-9815-2014 FU Office of Naval Research [N000141410532]; U.S. Department of Energy [DE-AC02-05CH11231]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]; DOE Office of Science [DE-AC02-06CH11357] FX Financial support from the Office of Naval Research under Grant N000141410532 is gratefully acknowledged. The Advanced Light Source is an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Lawrence Berkeley National Laboratory and is supported by the U.S. Department of Energy under Contract DE-AC02-05CH11231. Use of the NSLS is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-98CH10886. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357. NR 77 TC 1 Z9 1 U1 2 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 EI 1520-5835 J9 MACROMOLECULES JI Macromolecules PD JUN 28 PY 2016 VL 49 IS 12 BP 4599 EP 4608 DI 10.1021/acs.macromol.6b00370 PG 10 WC Polymer Science SC Polymer Science GA DQ1PP UT WOS:000378973200022 ER PT J AU Desseaux, S Hinestrosa, JP Schuwer, N Lokitz, BS Ankner, JF Kilbey, SM Voitchovsky, K Klok, HA AF Desseaux, Solenne Hinestrosa, Juan Pablo Schuwer, Nicolas Lokitz, Bradley S. Ankner, John F. Kilbey, S. Michael, II Voitchovsky, Kislon Klok, Harm-Anton TI Swelling Behavior and Nanomechanical Properties of (Peptide-Modified) Poly(2-hydroxyethyl methacrylate) and Poly(poly(ethylene glycol) methacrylate) Brushes SO MACROMOLECULES LA English DT Article ID FUNCTIONALIZED POLYMER BRUSHES; TRANSFER RADICAL POLYMERIZATION; OXIDE) SIDE-CHAINS; CELL-ADHESION; BIOMIMETIC MATERIALS; RGD; CRYSTALLIZATION; BIOMATERIALS; TEMPERATURE; FABRICATION AB Poly(2-hydroxyethyl methacrylate) (PHEMA) and poly(poly(ethylene glycol) methacrylate) (PPEGMA) brushes represent a class of thin, surface-tethered polymer films that have been extensively used e.g. to generate non-biofouling surfaces or as model systems to study fundamental biointerfacial questions related to cell-surface interactions. As the properties of PHEMA and PPEGMA brushes depend on the hydration and swelling of these thin films, it is important to understand the influence of basic structural parameters such as the composition of the polymer brush, the film thickness, or grafting density on these phenomena. This article reports results of a series of experiments that were performed to investigate the swelling behavior and mechanical properties of a diverse library of PHEMA and PPEGMA brushes covering a range of film thicknesses and grafting densities. The swelling ratios of the PHEMA and PPEGMA brushes were determined by ellipsometry and neutron reflectivity experiments and ranged from similar to 1.5 to similar to 5.0. Decreasing the grafting density and decreasing the film thickness generally results in an increase in the swelling ratio. Modification of the PHEMA and PPEGMA brushes with the cell adhesive RGD peptide ligand was found to result in a decrease in the swelling ratio. The neutron reflectivity experiments further revealed that solvated PHEMA and PPEGMA brushes are best described by a two-layer model, consisting of a polymer-rich layer close to the substrate and a second layer that is swollen to a much higher degree at the brush water interface. C1 [Desseaux, Solenne; Hinestrosa, Juan Pablo; Schuwer, Nicolas; Klok, Harm-Anton] Ecole Polytech Fed Lausanne, Inst Mat, Batiment MXD,Stn 12, CH-1015 Lausanne, Switzerland. [Desseaux, Solenne; Hinestrosa, Juan Pablo; Schuwer, Nicolas; Klok, Harm-Anton] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, Lab Polymeres, Batiment MXD,Stn 12, CH-1015 Lausanne, Switzerland. [Lokitz, Bradley S.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Ankner, John F.] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. [Kilbey, S. Michael, II] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Kilbey, S. Michael, II] Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA. [Voitchovsky, Kislon] Univ Durham, Dept Phys, South Rd, Durham DH1 3LE, England. RP Klok, HA (reprint author), Ecole Polytech Fed Lausanne, Inst Mat, Batiment MXD,Stn 12, CH-1015 Lausanne, Switzerland.; Klok, HA (reprint author), Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, Lab Polymeres, Batiment MXD,Stn 12, CH-1015 Lausanne, Switzerland. EM harm-anton.klok@epfl.ch RI Voitchovsky, Kislon/N-9885-2013 OI Voitchovsky, Kislon/0000-0001-7760-4732 FU Swiss National Science Foundation (SNF); European Union [NMP4-LA-2009-229289 NanoII]; US Department of Energy (DOE) [DE-AC05-00OR22725]; National Science Foundation [1512221] FX This work has been financially supported by the Swiss National Science Foundation (SNF) as well as the European Union Seventh Framework Programme (grant agreement NMP4-LA-2009-229289 NanoII) (H.-A.K.). Ellipsometry measurements were conducted at the ORNL Centre for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. Neutron reflectivity measurements were carried out at the ORNL Spallation Neutron Source. ORNL is managed by UT-Battelle, LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725. S.M.K. acknowledges support from the National Science Foundation (Award 1512221). The authors are grateful to Dr. Thomas Geue (PSI, Villigen, Switzerland) for his help with the neutron reflectivity experiments on the RGD modified polymer brushes. NR 41 TC 3 Z9 3 U1 18 U2 38 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 EI 1520-5835 J9 MACROMOLECULES JI Macromolecules PD JUN 28 PY 2016 VL 49 IS 12 BP 4609 EP 4618 DI 10.1021/acs.macromol.6b00881 PG 10 WC Polymer Science SC Polymer Science GA DQ1PP UT WOS:000378973200023 ER PT J AU Morris, RV Vaniman, DT Blake, DF Gellert, R Chipera, SJ Rampe, EB Ming, DW Morrison, SM Downs, RT Treiman, AH Yen, AS Grotzinger, JP Achilles, CN Bristow, TF Crisp, JA Des Marais, DJ Farmer, JD Fendrich, KV Frydenvang, J Graff, TG Morookian, JM Stolper, EM Schwenzer, SP AF Morris, Richard V. Vaniman, David T. Blake, David F. Gellert, Ralf Chipera, Steve J. Rampe, Elizabeth B. Ming, Douglas W. Morrison, Shaunna M. Downs, Robert T. Treiman, Allan H. Yen, Albert S. Grotzinger, John P. Achilles, Cherie N. Bristow, Thomas F. Crisp, Joy A. Des Marais, David J. Farmer, Jack D. Fendrich, Kim V. Frydenvang, Jens Graff, Trevor G. Morookian, John-Michael Stolper, Edward M. Schwenzer, Susanne P. TI Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE Mars; tridymite; Gale crater; lake; volcanism ID SATSUMA-IWOJIMA VOLCANO; X-RAY-DIFFRACTION; NEW-ZEALAND; MONOCLINIC TRIDYMITE; MARTIAN METEORITE; GEOTHERMAL FIELDS; IMPACT STRUCTURE; IWODAKE VOLCANO; HOT-SPRINGS; OPAL-A AB Tridymite, a low-pressure, high-temperature (>870 degrees C) SiO2 polymorph, was detected in a drill sample of laminated mudstone (Buckskin) at Marias Pass in Gale crater, Mars, by the Chemistry and Mineralogy X-ray diffraction instrument onboard the Mars Science Laboratory rover Curiosity. The tridymitic mudstone has similar to 40 wt.% crystalline and similar to 60 wt.% X-ray amorphous material and a bulk composition with similar to 74 wt.% SiO2 (Alpha Particle X-Ray Spectrometer analysis). Plagioclase (similar to 17 wt.% of bulk sample), tridymite (similar to 14 wt.%), sanidine (similar to 3 wt.%), cation-deficient magnetite (similar to 3 wt.%), cristobalite (similar to 2 wt.%), and anhydrite (similar to 1 wt.%) are the mudstone crystalline minerals. Amorphous material is silica-rich (similar to 39 wt.% opal-A and/or high-SiO2 glass and opal-CT), volatile-bearing (16 wt.% mixed cation sulfates, phosphates, and chlorides-perchlorates-chlorates), and has minor TiO2 and Fe2O3T oxides (similar to 5 wt.%). Rietveld refinement yielded a monoclinic structural model for a well-crystalline tridymite, consistent with high formation temperatures. Terrestrial tridymite is commonly associated with silicic volcanism, and detritus from such volcanism in a "Lake Gale" catchment environment can account for Buckskin's tridymite, cristobalite, feldspar, and any residual high-SiO2 glass. These cogenetic detrital phases are possibly sourced from the Gale crater wall/rim/central peak. Opaline silica could form during diagenesis from high-SiO2 glass, as amorphous precipitated silica, or as a residue of acidic leaching in the sediment source region or at Marias Pass. The amorphous mixed-cation salts and oxides and possibly the crystalline magnetite (otherwise detrital) are primary precipitates and/or their diagenesis products derived from multiple infiltrations of aqueous solutions having variable compositions, temperatures, and acidities. Anhydrite is post lithification fracture/vein fill. C1 [Morris, Richard V.; Ming, Douglas W.] NASA, Johnson Space Ctr, Houston, TX 77058 USA. [Vaniman, David T.] Planetary Sci Inst, Tucson, AZ 85719 USA. [Blake, David F.; Bristow, Thomas F.; Des Marais, David J.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA. [Gellert, Ralf] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. [Chipera, Steve J.] Chesapeake Energy, Oklahoma City, OK 73118 USA. [Rampe, Elizabeth B.] Aerodyne Ind, Houston, TX 77058 USA. [Morrison, Shaunna M.; Downs, Robert T.; Achilles, Cherie N.; Fendrich, Kim V.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA. [Treiman, Allan H.; Schwenzer, Susanne P.] Lunar & Planetary Inst, 3303 NASA Rd 1, Houston, TX 77058 USA. [Yen, Albert S.; Crisp, Joy A.; Morookian, John-Michael] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA. [Grotzinger, John P.; Stolper, Edward M.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA. [Farmer, Jack D.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA. [Frydenvang, Jens] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. [Frydenvang, Jens] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Graff, Trevor G.] Jacobs, Houston, TX 77058 USA. [Schwenzer, Susanne P.] Open Univ, Dept Environm Earth & Ecosyst, Milton Keynes MK7 6AA, Bucks, England. RP Morris, RV (reprint author), NASA, Johnson Space Ctr, Houston, TX 77058 USA.; Grotzinger, JP (reprint author), CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA. EM richard.v.morris@nasa.gov; grotz@gps.caltech.edu RI Crisp, Joy/H-8287-2016; Frydenvang, Jens/D-4781-2013 OI Crisp, Joy/0000-0002-3202-4416; Frydenvang, Jens/0000-0001-9294-1227 FU NASA Mars Science Laboratory Mission; Canadian Space Agency; MacDonald Dettwiler & Assoc., Brampton; CSA [9F052-110786]; NASA; National Aeronautics and Space Administration; Danish Villum Foundation; UK Space Agency FX We acknowledge the unwavering support of the JPL engineering and MSL operations staff. This research was supported by the NASA Mars Science Laboratory Mission. The MSL APXS was financed and managed by the Canadian Space Agency, with MacDonald Dettwiler & Assoc., Brampton, as prime subcontractor for the construction of the instrument. Operation of the MSL APXS is supported by CSA Contract 9F052-110786 and by NASA. Some of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. J.D.F. thanks the Danish Villum Foundation for support. S.P.S. acknowledges UK Space Agency funding. NR 78 TC 6 Z9 6 U1 18 U2 31 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 28 PY 2016 VL 113 IS 26 BP 7071 EP 7076 DI 10.1073/pnas.1607098113 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DQ2LI UT WOS:000379033400043 PM 27298370 ER PT J AU Korgul, A Rykaczewski, KP Grzywacz, RK Bingham, CR Brewer, NT Gross, CJ Ciemny, AA Jost, C Karny, M Madurga, M Mazzocchi, C Mendez, AJ Miernik, K Miller, D Padgett, S Paulauskas, SV Piersa, M Stracener, DW Stryjczyk, M Wolinska-Cichocka, M Zganjar, EF AF Korgul, A. Rykaczewski, K. P. Grzywacz, R. K. Bingham, C. R. Brewer, N. T. Gross, C. J. Ciemny, A. A. Jost, C. Karny, M. Madurga, M. Mazzocchi, C. Mendez, A. J., II Miernik, K. Miller, D. Padgett, S. Paulauskas, S. V. Piersa, M. Stracener, D. W. Stryjczyk, M. Wolinska-Cichocka, M. Zganjar, E. F. TI beta and beta-n decay of the neutron-rich Ge-84 nucleus SO PHYSICAL REVIEW C LA English DT Article ID ISOTOPES; HRIBF AB The beta-decay properties of the very neutron-rich Ge-84 nucleus were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Several new gamma-transitions and levels were added to its decay scheme and the order of the two lowest-lying levels in the daughter As-84 was corrected. For the first time gamma radiation following beta-delayed neutron emission was observed. The shell-model calculations and apparent beta transition intensities were used to guide the spin assignment to the As-84 levels, in particular for the low-energy part of the level scheme. The new spin-parity (2(-)) proposed for the ground state of As-84 is supported also by the systematics of N = 51 isotones. C1 [Korgul, A.; Ciemny, A. A.; Karny, M.; Mazzocchi, C.; Miernik, K.; Piersa, M.; Stryjczyk, M.] Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland. [Rykaczewski, K. P.; Grzywacz, R. K.; Bingham, C. R.; Brewer, N. T.; Gross, C. J.; Mendez, A. J., II; Miernik, K.; Stracener, D. W.; Wolinska-Cichocka, M.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Grzywacz, R. K.; Bingham, C. R.; Jost, C.; Madurga, M.; Miller, D.; Padgett, S.; Paulauskas, S. V.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Brewer, N. T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Brewer, N. T.; Wolinska-Cichocka, M.] Joint Inst Nucl Phys & Applicat, Oak Ridge, TN 37831 USA. [Karny, M.] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA. [Wolinska-Cichocka, M.] Univ Warsaw, Heavy Ion Lab, PL-02093 Warsaw, Poland. [Zganjar, E. F.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. RP Korgul, A (reprint author), Univ Warsaw, Fac Phys, PL-02093 Warsaw, Poland. FU U.S. Department of Energy, Office of Science, Office of Nuclear Physics; Office of Nuclear Physics, US Department of Energy; U.S. DOE [DE-AC05-00OR22725, DE-FG02-96ER41006, DE-FG02-96ER40983, DE-AC05-06OR23100, DE-FG02-96ER40978, DE-FG05-88ER40407]; National Nuclear Security Administration [DEFC03-03NA00143]; Eugene P. Wigner Foundation; US Department of Energy [DE-AC05-00OR22725] FX We wish to acknowledge the Holifield Radioactive Ion Beam Facility (HRIBF) staff for their assistance with the experiments and for providing excellent-quality neutron-rich radioactive beams. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, and this research used resources of the Holifield Radioactive Ion Beam Facility of Oak Ridge National Laboratory, which was a DOE Office of Science User Facility. This research is sponsored by the Office of Nuclear Physics, US Department of Energy, and supported under U.S. DOE Grants No. DE-AC05-00OR22725, No. DE-FG02-96ER41006, No. DE-FG02-96ER40983, No. DE-AC05-06OR23100, No. DE-FG02-96ER40978, and No. DE-FG05-88ER40407 and National Nuclear Security Administration Grant No. DEFC03-03NA00143. K.M.'s research was performed with support from the Eugene P. Wigner Foundation. The Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the US Department of Energy under Contract No. DE-AC05-00OR22725. NR 36 TC 0 Z9 0 U1 3 U2 3 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 28 PY 2016 VL 93 IS 6 AR 064324 DI 10.1103/PhysRevC.93.064324 PG 6 WC Physics, Nuclear SC Physics GA DP9LL UT WOS:000378817600001 ER PT J AU Aaboud, M Aad, G Abbott, B Abdallah, J Abdinov, O Abeloos, B Aben, R AbouZeid, OS Abraham, NL Abramowicz, H Abreu, H Abreu, R Abulaiti, Y Acharya, BS Adamczyk, L Adams, DL Adelman, J Adomeit, S Adye, T Affolder, AA Agatonovic-Jovin, T Agricola, J Aguilar-Saavedra, JA Ahlen, SP Ahmadov, F Aielli, G Akerstedt, H Akesson, TPA Akimov, AV Alberghi, GL Albert, J Albrand, S Verzini, MJA Aleksa, M Aleksandrov, IN Alexa, C Alexander, G Alexopoulos, T Alhroob, M Aliev, M Alimonti, G Alison, J Alkire, SP Allbrooke, BMM Allen, BW Allport, PP Aloisio, A Alonso, A Alonso, F Alpigiani, C Alstaty, M Gonzalez, BA Piqueras, DA Alviggi, MG Amadio, BT Amako, K Coutinho, YA Amelung, C Amidei, D Dos Santos, SPA Amorim, A Amoroso, S Amundsen, G Anastopoulos, C Ancu, LS Andari, N Andeen, T Anders, CF Anders, G Anders, JK Anderson, KJ Andreazza, A Andrei, V Angelidakis, S Angelozzi, I Anger, P Angerami, A Anghinolfi, F Anisenkov, AV Anjos, N Annovi, A Antonelli, M Antonov, A Anulli, F Aoki, M Bella, LA Arabidze, G Arai, Y Araque, JP Arce, ATH Arduh, FA Arguin, JF Argyropoulos, S Arik, M Armbruster, AJ Armitage, LJ Arnaez, O Arnold, H Arratia, M Arslan, O Artamonov, A Artoni, G Artz, S Asai, S Asbah, N Ashkenazi, A Asman, B Asquith, L Assamagan, K Astalos, R Atkinson, M Atlay, NB Augsten, K Avolio, G Axen, B Ayoub, MK Azuelos, G Baak, MA Baas, AE Baca, MJ Bachacou, H Bachas, K Backes, M Backhaus, M Bagiacchi, P Bagnaia, P Bai, Y Baines, JT Baker, OK Baldin, EM Balek, P Balestri, T Balli, F Balunas, WK Banas, E Banerjee, S Bannoura, AAE Barak, L Barberio, EL Barberis, D Barbero, M Barillari, T Barklow, T Barlow, N Barnes, SL Barnett, BM Barnett, RM Barnovska, Z Baroncelli, A Barone, G Barr, AJ Navarro, LB Barreiro, F da Costa, JBG Bartoldus, R Barton, AE Bartos, P Basalaev, A Bassalat, A Bates, RL Batista, SJ Batley, JR Battaglia, M Bauce, 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Wittkowski, J. Wollstadt, S. J. Wolter, M. W. Wolters, H. Wosiek, B. K. Wotschack, J. Woudstra, M. J. Wozniak, K. W. Wu, M. Wu, M. Wu, S. L. Wu, X. Wu, Y. Wyatt, T. R. Wynne, B. M. Xella, S. Xu, D. Xu, L. Yabsley, B. Yacoob, S. Yakabe, R. Yamaguchi, D. Yamaguchi, Y. Yamamoto, A. Yamamoto, S. Yamanaka, T. Yamauchi, K. Yamazaki, Y. Yan, Z. Yang, H. Yang, H. Yang, Y. Yang, Z. Yao, W-M. Yap, Y. C. Yasu, Y. Yatsenko, E. Wong, K. H. Yau Ye, J. Ye, S. Yeletskikh, I. Yen, A. L. Yildirim, E. Yorita, K. Yoshida, R. Yoshihara, K. Young, C. Young, C. J. S. Youssef, S. Yu, D. R. Yu, J. Yu, J. M. Yu, J. Yuan, L. Yuen, S. P. Y. Yusuff, I. Zabinski, B. Zaidan, R. Zaitsev, A. M. Zakharchuk, N. Zalieckas, J. Zaman, A. Zambito, S. Zanello, L. Zanzi, D. Zeitnitz, C. Zeman, M. Zemla, A. Zeng, J. C. Zeng, Q. Zengel, K. Zenin, O. Zenis, T. Zerwas, D. Zhang, D. Zhang, F. Zhang, G. Zhang, H. Zhang, J. Zhang, L. Zhang, R. Zhang, R. Zhang, X. Zhang, Z. Zhao, X. Zhao, Y. Zhao, Z. Zhemchugov, A. Zhong, J. Zhou, B. Zhou, C. Zhou, L. Zhou, L. Zhou, M. Zhou, N. Zhu, C. G. Zhu, H. Zhu, J. Zhu, Y. Zhuang, X. Zhukov, K. Zibell, A. Zieminska, D. Zimine, N. I. Zimmermann, C. Zimmermann, S. Zinonos, Z. Zinser, M. Ziolkowski, M. Zivkovic, L. Zobernig, G. Zoccoli, A. Nedden, M. Zur Zurzolo, G. Zwalinski, L. CA ATLAS Collaboration TI Search for metastable heavy charged particles with large ionization energy loss in pp collisions at root s=13 TeV using the ATLAS experiment SO PHYSICAL REVIEW D LA English DT Article ID SUPERSYMMETRY BREAKING; SPLIT SUPERSYMMETRY; DISTRIBUTIONS; COLLIDERS; DETECTOR; SQUARK; LHC AB This paper presents a search for massive charged long-lived particles produced in pp collisions at root s = 13 TeV at the LHC using the ATLAS experiment. The data set used corresponds to an integrated luminosity of 3.2 fb(-1). Many extensions of the Standard Model predict the existence of massive charged long-lived particles, such as R-hadrons. These massive particles are expected to be produced with a velocity significantly below the speed of light, and therefore to have a specific ionization higher than any Standard Model particle of unit charge at high momenta. The Pixel subsystem of the ATLAS detector is used to measure the ionization energy loss of reconstructed charged particles and to search for such highly ionizing particles. The search presented here has much greater sensitivity than a similar search performed using the ATLAS detector in the root s = 8 TeV data set, thanks to the increase in expected signal cross section due to the higher center-of-mass energy of collisions, to an upgraded detector with a new silicon layer close to the interaction point, and to analysis improvements. No significant deviation from Standard Model background expectations is observed, and lifetime-dependent upper limits on R-hadron production cross sections and masses are set. Gluino R-hadrons with lifetimes above 0.4 ns and decaying to q (q) over bar plus a 100 GeV neutralino are excluded at the 95% confidence level, with lower mass limit ranging between 740 and 1590 GeV. In the case of stable R-hadrons the lower mass limit at the 95% confidence level is 1570 GeV. C1 [Jackson, P.; Lee, L.; Petridis, A.; White, M. J.] Univ Adelaide, Dept Phys, Adelaide, SA, Australia. [Bouffard, J.; Ernst, J.; Fischer, A.; Guindon, S.; Jain, V.] SUNY Albany, Dept Phys, Albany, NY 12222 USA. [Czodrowski, P.; Dassoulas, J.; Dehghanian, N.; Gingrich, D. M.; Jabbar, S.; Karamaoun, A.; Moore, R. W.; Pinfold, J. L.] Univ Alberta, Dept Phys, Edmonton, AB, Canada. [Cakir, O.; Ciftci, A. K.; Yildiz, H. Duran] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey. [Kuday, S.] Istanbul Aydin Univ, Istanbul, Turkey. [Sultansoy, S.] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey. 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A.; Boveia, A.; Boyd, J.; Burckhart, H.; Camarda, S.; Campana, S.; Garrido, M. D. M. Capeans; Carli, T.; Carrillo-Montoya, G. D.; Catinaccio, A.; Cattai, A.; Cerv, M.; Chromek-Burckhart, D.; Colombo, T.; Conti, G.; Dell'Acqua, A.; Deviveiros, P. O.; Di Girolamo, B.; Di Nardo, R.; Dittus, F.; Dobos, D.; Dudarev, A.; Duhrssen, M.; Eifert, T.; Ellis, N.; Elsing, M.; Farthouat, P.; Fassnacht, P.; Feng, E. J.; Francis, D.; Fressard-Batraneanu, S. M.; Froidevaux, D.; Gadatsch, S.; Glatzer, J.; Goossens, L.; Gorini, B.; Gray, H. M.; Gumpert, C.; Hawkings, R. J.; Helsens, C.; Correia, A. M. Henriques; Hervas, L.; Hoecker, A.; Huhtinen, M.; Iengo, P.; Jakobsen, S.; Jenni, P.; Klioutchnikova, T.; Krasznahorkay, A.; Lapoire, C.; Lassnig, M.; Miotto, G. Lehmann; Lenzi, B.; Lichard, P.; Malyukov, S.; Mandelli, B.; Manousos, A.; Mapelli, L.; Marzin, A.; Berlingen, J. Montejo; Mornacchi, G.; Nairz, A. M.; Nakahama, Y.; Nessi, M.; Nordberg, M.; Oide, H.; Palestini, S.; Pauly, T.; Pernegger, H.; Petersen, B. A.; Pommes, K.; Poppleton, A.; Poulard, G.; Poveda, J.; Astigarraga, M. E. Pozo; Rammensee, M.; Raymond, M.; Rembser, C.; Ritsch, E.; Roe, S.; Ruthmann, N.; Salzburger, A.; Schaefer, D.; Schlenker, S.; Schmieden, K.; Sforza, F.; Sanchez, C. A. Solans; Spigo, G.; Starz, S.; Stelzer, H. J.; Teischinger, F. A.; Ten Kate, H.; Unal, G.; van Woerden, M. C.; Vandelli, W.; Voss, R.; Vuillermet, R.; Wells, P. S.; Wengler, T.; Wenig, S.; Werner, P.; Wilkens, H. G.; Wotschack, J.; Young, C. J. S.; Zwalinski, L.] CERN, CH-1211 Geneva 23, Switzerland. [Alison, J.; Anderson, K. J.; Bryant, P.; Toro, R. Camacho; Cheng, Y.; Dandoy, J. R.; Facini, G.; Gardner, R. W.; Kapliy, A.; Kim, Y. K.; Krizka, K.; Li, H. L.; Merritt, F. S.; Miller, D. W.; Okumura, Y.; Oreglia, M. J.; Pilcher, J. E.; Saxon, J.; Shochet, M. J.; Stark, G. H.; Swiatlowski, M.; Vukotic, I.; Wu, M.] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA. [Blunier, S.; Diaz, M. A.; Ochoa-Ricoux, J. P.] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile. [Brooks, W. K.; Carquin, E.; Kuleshov, S.; Pezoa, R.; Prokoshin, F.; Salazar Loyola, J. E.; Tapia Araya, S.; White, R.] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile. [Bai, Y.; da Costa, J. Barreiro Guimaraes; Cheng, H. J.; Fang, Y.; Jin, S.; Li, Q.; Liang, Z.; Merino, J. Llorente; Lou, X.; Mansour, J. D.; Ouyang, Q.; Peng, C.; Ren, H.; Shan, L. Y.; Sun, X.; Xu, D.; Zhu, H.; Zhuang, X.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China. [Gao, J.; Geng, C.; Guo, Y.; Han, L.; Hu, Q.; Jiang, Y.; Liu, J. B.; Liu, M.; Liu, Y. L.; Liu, Y.; Peng, H.; Song, H. Y.; Wang, W.; Zhang, G.; Zhang, R.; Zhao, Z.; Zhu, Y.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China. [Chen, S.; Wang, C.; Zhang, H.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China. [Du, Y.; Feng, C.; Liu, B.; Ma, L. L.; Ma, Y.; Wang, C.; Zaidan, R.; Zhang, X.; Zhao, Y.; Zhu, C. G.] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China. [Bret, M. Cano; Guo, J.; Li, L.; Yang, H.] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Dept Phys & Astron, Shanghai 200030, Peoples R China. [Bret, M. Cano; Guo, J.; Li, L.; Yang, H.] PKU CHEP, Beijing, Peoples R China. [Chen, X.; Zhou, N.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Chomont, A. R.; Donini, J.; Gris, Ph.; Madar, R.; Pallin, D.; Saez, S. M. Romano; Santoni, C.; Simon, D.; Vazeille, F.] Univ Clermont Ferrand, Phys Corpusculaire Lab, Clermont Ferrand, France. [Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Chomont, A. R.; Donini, J.; Gris, Ph.; Madar, R.; Pallin, D.; Saez, S. M. Romano; Santoni, C.; Simon, D.; Vazeille, F.] Univ Clermont Ferrand, Clermont Ferrand, France. [Boumediene, D.; Busato, E.; Calvet, D.; Calvet, S.; Chomont, A. R.; Donini, J.; Gris, Ph.; Madar, R.; Pallin, D.; Saez, S. M. Romano; Santoni, C.; Simon, D.; Vazeille, F.] CNRS IN2P3, Clermont Ferrand, France. [Alkire, S. P.; Angerami, A.; Brooijmans, G.; Carbone, R. M.; Clark, M. R.; Cole, B.; Hu, D.; Hughes, E. W.; Iordanidou, K.; Klein, M. H.; Mohapatra, S.; Ochoa, I.; Parsons, J. A.; Smith, M. N. K.; Smith, R. W.; Thompson, E. N.; Tuts, P. M.; Wang, T.; Zhou, L.] Columbia Univ, Nevis Lab, Irvington, NY USA. [Alonso, A.; Besjes, G. J.; Dam, M.; Galster, G.; Hansen, J. B.; Hansen, J. D.; Loevschall-Jensen, A. E.; Monk, J.; Mortensen, S. S.; Pedersen, L. E.; Pingel, A.; Wiglesworth, C.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark. [Cairo, V. M.; Capua, M.; Crosetti, G.; Del Gaudio, M.; La Rotonda, L.; Mastroberardino, A.; Policicchio, A.; Salvatore, D.; Scarfone, V.; Susinno, G.; Tassi, E.] Ist Nazl Fis Nucl, Lab Nazl Frascati, Grp Coll Cosenza, Milan, Italy. [Cairo, V. M.; Capua, M.; Crosetti, G.; Del Gaudio, M.; La Rotonda, L.; Mastroberardino, A.; Policicchio, A.; Salvatore, D.; Scarfone, V.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartmento Fis, I-87036 Arcavacata Di Rende, Italy. [Adamczyk, L.; Bold, T.; Dabrowski, W.; Gach, G. P.; Grabowska-Bold, I.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Przybycien, M.; Zemla, A.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland. [Palka, M.; Richter-Was, E.] Jagiellonian Univ, Marian Smoluchowski Inst Phys, Krakow, Poland. [Banas, E.; de Renstrom, P. A. Bruckman; Burka, K.; Chwastowski, J. J.; Derendarz, D.; Godlewski, J.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Knapik, J.; Korcyl, K.; Kowalewska, A. B.; Malecki, Pa.; Olszewski, A.; Olszowska, J.; Stanecka, E.; Staszewski, R.; Trzebinski, M.; Trzupek, A.; Wolter, M. W.; Wosiek, B. K.; Wozniak, K. W.; Zabinski, B.] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland. [Cao, T.; Firan, A.; Hetherly, J. W.; Kama, S.; Kehoe, R.; Sekula, S. J.; Stroynowski, R.; Turvey, A. J.; Varol, T.; Wang, H.; Ye, J.; Zhao, X.; Zhou, L.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA. [Izen, J. M.; Leyton, M.; Meirose, B.; Namasivayam, H.; Reeves, K.] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA. [Asbah, N.; Behr, J. K.; Bertsche, C.; Bessner, M.; Bloch, I.; Britzger, D.; Deterre, C.; Dutta, B.; Dyndal, M.; Eckardt, C.; Filipuzzi, M.; Flaschel, N.; Bravo, A. Gascon; Glazov, A.; Gregor, I. M.; Haleem, M.; Hamnett, P. G.; Hiller, K. H.; Howarth, J.; Huang, Y.; Keller, J. S.; Kondrashova, N.; Kuhl, T.; Lobodzinska, E.; Lohwasser, K.; Madsen, A.; Medinnis, M.; Moenig, K.; Garcia, R. F. Naranjo; Naumann, T.; Ntekas, K.; O'Rourke, A. A.; Peschke, R.; Peters, K.; Pirumov, H.; Poley, A.; Robinson, J. E. M.; Schaefer, R.; Schmitt, S.; South, D.; Stanescu-Bellu, M.; Stanitzki, M. M.; Styles, N. A.; Tackmann, K.; Trofymov, A.; Wang, J.; Zakharchuk, N.] DESY, Hamburg, Germany. [Asbah, N.; Behr, J. K.; Bertsche, C.; Bessner, M.; Bloch, I.; Britzger, D.; Deterre, C.; Dutta, B.; Dyndal, M.; Eckardt, C.; Filipuzzi, M.; Flaschel, N.; Bravo, A. Gascon; Glazov, A.; Gregor, I. M.; Haleem, M.; Hamnett, P. G.; Hiller, K. H.; Howarth, J.; Huang, Y.; Keller, J. S.; Kondrashova, N.; Kuhl, T.; Lobodzinska, E.; Lohwasser, K.; Madsen, A.; Medinnis, M.; Moenig, K.; Garcia, R. F. Naranjo; Naumann, T.; O'Rourke, A. A.; Peschke, R.; Peters, K.; Pirumov, H.; Poley, A.; Robinson, J. E. M.; Schaefer, R.; Schmitt, S.; South, D.; Stanescu-Bellu, M.; Stanitzki, M. M.; Styles, N. A.; Tackmann, K.; Trofymov, A.; Wang, J.; Zakharchuk, N.] DESY, Zeuthen, Germany. [Burmeister, I.; Dette, K.; Erdmann, J.; Esch, H.; Goessling, C.; Homann, M.; Jentzsch, J.; Klingenberg, R.; Kroeninger, K.] Tech Univ Dortmund, Inst Expt Phys 4, D-44221 Dortmund, Germany. [Anger, P.; Duschinger, D.; Friedrich, F.; Groh, S.; Grohs, J. P.; Gutschow, C.; Hauswald, L.; Kobel, M.; Mader, W. F.; Novgorodova, O.; Siegert, F.; Socher, F.; Straessner, A.; Vest, A.; Wahrmund, S.] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany. [Arce, A. T. H.; Benjamin, D. P.; Bjergaard, D. M.; Bocci, A.; Cerio, B. C.; Goshaw, A. T.; Kajomovitz, E.; Kotwal, A.; Kruse, M. C.; Li, L.; Li, S.; Liu, M.; Oh, S. H.; Zhou, C.] Duke Univ, Dept Phys, Durham, NC 27706 USA. [Bristow, T. M.; Clark, P. J.; Dias, F. A.; Edwards, N. C.; Gao, Y.; Walls, F. M. Garay; Glaysher, P. C. F.; Harrington, R. D.; Leonidopoulos, C.; Martin, V. J.; Mills, C.; Pino, S. A. Olivares; Proissl, M.; Washbrook, A.; Wynne, B. M.] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh, Midlothian, Scotland. [Antonelli, M.; Beretta, M.; Bilokon, H.; Chiarella, V.; Curatolo, M.; Esposito, B.; Gatti, C.; Laurelli, P.; Maccarrone, G.; Mancini, G.; Sansoni, A.; Testa, M.; Vilucchi, E.] Ist Nazl Fis Nucl, Lab Nazl Frascati, POB 13, I-00044 Frascati, Italy. [Arnold, H.; Ashkenazi, A.; Boehler, M.; Bruneliere, R.; Buehrer, F.; Burgard, C. D.; Buscher, D.; Cardillo, F.; Coniavitis, E.; Consorti, V.; Dang, N. P.; Dao, V.; Di Simone, A.; Gonella, G.; Herten, G.; Jakobs, K.; Javurek, T.; Jenni, P.; Kiss, F.; Koeneke, K.; Kopp, A. K.; Kuehn, S.; Landgraf, U.; Luedtke, C.; Nagel, M.; Pagacova, M.; Parzefall, U.; Ronzani, M.; Rosbach, K.; Ruehr, F.; Rurikova, Z.; Sammel, D.; Schillo, C.; Schumacher, M.; Sommer, P.; Sundermann, J. E.; Ta, D.; Temming, K. K.; Tsiskaridze, V.; Weiser, C.; Werner, M.; Zhang, L.; Zimmermann, S.] Univ Freiburg, Fac Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany. [Ancu, L. S.; De Mendizabal, J. Bilbao; Calace, N.; Chatterjee, A.; Clark, A.; Coccaro, A.; Delitzsch, C. M.; della Volpe, D.; Ferrere, D.; Gadomski, S.; Golling, T.; Gonzalez-Sevilla, S.; Gramling, J.; Guescini, F.; Iacobucci, G.; Khoo, T. J.; Lionti, A. E.; March, L.; Mermod, P.; Nackenhorst, O.; Nessi, M.; Paolozzi, L.; Ristic, B.; Schramm, S.; Sfyrla, A.; Vallecorsa, S.; Wu, X.] Univ Geneva, Sect Phys, Geneva, Switzerland. [Barberis, D.; Darbo, G.; Favareto, A.; Parodi, A. Ferretto; Gagliardi, G.; Gaudiello, A.; Gemme, C.; Guido, E.; Miglioranzi, S.; Morettini, P.; Osculati, B.; Parodi, F.; Passaggio, S.; Rossi, L. P.; Sannino, M.; Schiavi, C.] Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy. [Barberis, D.; Favareto, A.; Parodi, A. Ferretto; Gagliardi, G.; Gaudiello, A.; Guido, E.; Miglioranzi, S.; Osculati, B.; Parodi, F.; Sannino, M.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy. [Jejelava, J.; Tskhadadze, E. G.] Iv Javakhishvili Tbilisi State Univ, E Andronikashvili Inst Phys, Tbilisi, Rep of Georgia. [Djobava, T.; Durglishvili, A.; Khubua, J.; Mosidze, M.] Tbilisi State Univ, Inst High Energy Phys, Tbilisi, Rep of Georgia. [Dueren, M.; Heinz, C.; Kreutzfeldt, K.; Stenzel, H.] Univ Giessen, Inst Phys 2, Giessen, Germany. [Bates, R. L.; Boutle, S. K.; Madden, W. D. Breaden; Britton, D.; Buckley, A. G.; Bussey, P.; Buttar, C. M.; Buzatu, A.; Cinca, D.; Crawley, S. J.; D'Auria, S.; Doyle, A. T.; Ferrando, J.; Gul, U.; Mullen, P.; O'Shea, V.; Owen, M.; Pollard, C. S.; Qin, G.; Quilty, D.; Ravenscroft, T.; Robson, A.; St Denis, R. D.; Stewart, G. A.; Thompson, A. S.] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow, Lanark, Scotland. [Agricola, J.; Bindi, M.; Blumenschein, U.; Brandt, G.; De Maria, A.; Drechsler, E.; Graber, L.; Grosse-Knetter, J.; Janus, M.; Kareem, M. J.; Lai, S.; Lemmer, B.; Magradze, E.; Mantoani, M.; Mchedlidze, G.; Llacer, M. Moreno; Musheghyan, H.; Quadt, A.; Riegel, C. J.; Rosien, N. -A.; Rzehorz, G. F.; Shabalina, E.; Stolte, P.; Veatch, J.; Weingarten, J.; Zinonos, Z.] Univ Gottingen, Inst Phys 2, Gottingen, Germany. [Albrand, S.; Berlendis, S.; Camincher, C.; Collot, J.; Crepe-Renaudin, S.; Delsart, P. A.; Gabaldon, C.; Genest, M. H.; Gradin, P. O. J.; Hostachy, J-Y.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Petit, E.; Stark, J.; Trocme, B.; Wu, M.] Univ Grenoble Alpes, CNRS IN2P3, Lab Phys Subat & Cosmol, Grenoble, France. [McFarlane, K. W.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA. [Chan, S. K.; Clark, B. L.; Franklin, M.; Giromini, P.; Huth, J.; Ippolito, V.; Lazovich, T.; Mateos, D. Lopez; Morii, M.; Rogan, C. S.; Skottowe, H. P.; Sun, S.; Tolley, E.; Tong, B.; Tuna, A. N.; Yen, A. L.; Zambito, S.] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA. [Andrei, V.; Baas, A. E.; Brandt, O.; Djuvsland, J. I.; Dunford, M.; Geisler, M. P.; Hanke, P.; Jongmanns, J.; Kluge, E. -E.; Lang, V. S.; Meier, K.; Zu Theenhausen, H. Meyer; Villar, D. I. Narrias; Sahinsoy, M.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Starovoitov, P.; Suchek, S.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany. [Anders, C. F.; De Lima, D. E. Ferreira; Giulini, M.; Kolb, M.; Lisovyi, M.; Radescu, V.; Schaetzel, S.; Schoening, A.; Sosa, D.] Heidelberg Univ, Inst Phys, Heidelberg, Germany. [Kretz, M.; Kugel, A.] Heidelberg Univ, ZITI Inst Tech Informat, Mannheim, Germany. [Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan. [Bortolotto, V.; Chan, Y. L.; Castillo, L. R. Flores; Lu, H.; Salvucci, A.; Tsui, K. M.] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China. [Bortolotto, V.; Orlando, N.] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China. [Bortolotto, V.; Prokofiev, K.] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China. [Choi, K.; Dattagupta, A.; Evans, H.; Gagnon, P.; Kopeliansky, R.; Lammers, S.; Martinez, N. Lorenzo; Luehring, F.; Ogren, H.; Penwell, J.; Weinert, B.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Jansky, R.; Kneringer, E.; Lukas, W.; Milic, A.; Usanova, A.; Vigne, R.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria. [Abdallah, J.; Argyropoulos, S.; Benitez, J.; Mallik, U.] Univ Iowa, Iowa City, IA USA. [Chen, C.; Cochran, J.; De Lorenzi, F.; Jiang, H.; Krumnack, N.; Pluth, D.; Prell, S.; Yu, J.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA. [Ahmadov, F.; Aleksandrov, I. N.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Gongadze, A.; Gostkin, M. I.; Huseynov, N.; Javadov, N.; Karpova, Z. M.; Khramov, E.; Kruchonak, U.; Kukhtin, V.; Ladygin, E.; Lyubushkin, V.; Minashvili, I. A.; Mineev, M.; Peshekhonov, V. D.; Plotnikova, E.; Potrap, I. N.; Pozdnyakov, V.; Rusakovich, N. A.; Sadykov, R.; Sapronov, A.; Shiyakova, M.; Soloshenko, A.; Vinogradov, V. B.; Yeletskikh, I.; Zhemchugov, A.; Zimine, N. I.] Joint Inst Nucl Res Dubna, Inst Nucl Res, Moscow, Russia. [Amako, K.; Aoki, M.; Arai, Y.; Hanagaki, K.; Ikegami, Y.; Ikeno, M.; Iwasaki, H.; Kondo, T.; Kono, T.; Nagai, R.; Nagano, K.; Nakamura, K.; Nozaki, M.; Okuyama, T.; Sasaki, O.; Suzuki, S.; Takubo, Y.; Tanaka, S.; Terada, S.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan. [Chen, Y.; Hasegawa, M.; Kido, S.; Kishimoto, T.; Kurashige, H.; Maeda, J.; Ochi, A.; Shimizu, S.; Yakabe, R.; Yamazaki, Y.; Yuan, L.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan. [Ishino, M.; Kunigo, T.; Monden, R.; Sumida, T.; Tashiro, T.] Kyoto Univ, Fac Sci, Kyoto, Japan. [Takashima, R.] Kyoto Univ, Kyoto 612, Japan. [Kawagoe, K.; Oda, S.; Otono, H.; Tojo, J.] Kyushu Univ, Dept Phys, Fukuoka 812, Japan. [Alconada Verzini, M. J.; Alonso, F.; Arduh, F. A.; Dova, M. T.; Monticelli, F.; Wahlberg, H.] Univ Nacl La Plata, Inst Fis La Plata, RA-1900 La Plata, Buenos Aires, Argentina. [Alconada Verzini, M. J.; Alonso, F.; Arduh, F. A.; Dova, M. T.; Monticelli, F.; Wahlberg, H.] Consejo Nacl Invest Cient & Tecn, La Plata, Buenos Aires, Argentina. [Barton, A. E.; Beattie, M. D.; Bertram, I. A.; Borissov, G.; Bouhova-Thacker, E. V.; Cheatham, S.; 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.; Muenstermann, D.; Parker, A. J.; Skinner, M. B.; Smizanska, M.; Walder, J.; Wharton, A. M.] Univ Lancaster, Dept Phys, Lancaster, England. [Aliev, M.; Bachas, K.; Chiodini, G.; Gorini, E.; Longo, L.; Primavera, M.; Spagnolo, S.; Ventura, A.] INFN Sez Lecce, Zona Monte, Italy. [Aliev, M.; Bachas, K.; Gorini, E.; Longo, L.; Reale, M.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Matemat & Fis, Lecce, Italy. [Affolder, A. A.; Anders, J. K.; Burdin, S.; D'Onofrio, M.; Gwilliam, C. B.; Hayward, H. S.; Jackson, M.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kretzschmar, J.; Laycock, P.; Lehan, A.; Maxfield, S. J.; Mehta, A.; Readioff, N. P.; Vossebeld, J. H.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England. [Cindro, V.; Deliyergiyev, M.; Filipcic, A.; Gorisek, A.; Kanjir, L.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Muskinja, M.; Sfiligoj, T.; Sokhrannyi, G.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia. [Cindro, V.; Deliyergiyev, M.; Filipcic, A.; Gorisek, A.; Kanjir, L.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Muskinja, M.; Sfiligoj, T.; Sokhrannyi, G.] Univ Ljubljana, Ljubljana, Slovenia. [Armitage, L. J.; Bevan, A. J.; Bona, M.; Cerrito, L.; Hays, J. M.; Hickling, R.; Landon, M. P. J.; Lewis, D.; Lloyd, S. L.; Morris, J. D.; Nooney, T.; Piccaro, E.; Rizvi, E.; Sandbach, R. L.] Queen Mary Univ London, Sch Phys & Astron, London, England. [Berry, T.; Blanco, J. E.; Boisvert, V.; Brooks, T.; Connelly, I. A.; Cowan, G.; Duguid, L.; Giannelli, M. Faucci; George, S.; Gibson, S. M.; Kempster, J. J.; Vazquez, J. G. Panduro; Pastore, Fr.; Savage, G.; Sowden, B. C.; Spano, F.; Teixeira-Dias, P.; Thomas-Wilsker, J.] Royal Holloway Univ London, Dept Phys, Egham, Surrey, England. [Bassalat, A.; Bell, A. S.; Butterworth, J. M.; Campanelli, M.; Christodoulou, V.; Cooper, B. D.; Davison, P.; Falla, R. J.; Freeborn, D.; Gregersen, K.; Ortiz, N. G. Gutierrez; Hesketh, G. G.; Jansen, E.; Jiggins, S.; Konstantinidis, N.; Korn, A.; Kucuk, H.; Leney, K. J. C.; Martyniuk, A. C.; McClymont, L. I.; Mcfayden, J. A.; Nurse, E.; Richter, S.; Scanlon, T.; Sherwood, P.; Simmons, B.; Wardrope, D. R.; Waugh, B. M.] UCL, Dept Phys & Astron, London, England. [Greenwood, Z. D.; Grossi, G. C.; Jana, D. K.; Sawyer, L.; Subramaniam, R.] Louisiana Tech Univ, Ruston, LA 71270 USA. [Beau, T.; Bomben, M.; Calderini, G.; Crescioli, F.; De Cecco, S.; Demilly, A.; Derue, F.; Francavilla, P.; Krasny, M. W.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lefebvre, G.; Solis, A. Lopez; Luzi, P. M.; Malaescu, B.; Nikolic-Audit, I.; Ocariz, J.; Pandini, C. E.; Pires, S.; Ridel, M.; Roos, L.; Trincaz-Duvoid, S.; Varouchas, D.; Yap, Y. C.] UPMC, Lab Phys Nucl & Hautes Energies, Paris, France. [Ashkenazi, A.; Beau, T.; Bomben, M.; Calderini, G.; Crescioli, F.; De Cecco, S.; Demilly, A.; Derue, F.; Francavilla, P.; Krasny, M. W.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lefebvre, G.; Solis, A. Lopez; Luzi, P. M.; Malaescu, B.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Pandini, C. E.; Pires, S.; Ridel, M.; Roos, L.; Trincaz-Duvoid, S.; Varouchas, D.; Yap, Y. C.] Univ Paris Diderot, Paris, France. [Beau, T.; Bomben, M.; Calderini, G.; Crescioli, F.; De Cecco, S.; Demilly, A.; Derue, F.; Francavilla, P.; Krasny, M. W.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lefebvre, G.; Solis, A. Lopez; Luzi, P. M.; Malaescu, B.; Nikolic-Audit, I.; Ocariz, J.; Pandini, C. E.; Pires, S.; Ridel, M.; Roos, L.; Trincaz-Duvoid, S.; Varouchas, D.; Yap, Y. C.] CNRS IN2P3, Paris, France. [Akesson, T. P. A.; Bocchetta, S. S.; Bryngemark, L.; Doglioni, C.; Floderus, A.; Hedberg, V.; Jarlskog, G.; Lytken, E.; Mjornmark, J. U.; Smirnova, O.; Viazlo, O.] Lund Univ, Fysiska Inst, Lund, Sweden. [Barreiro, F.; De la Torre, H.; Del Peso, J.; Glasman, C.; Terron, J.] Univ Autonoma Madrid, Dept Fis Teor C15, Madrid, Spain. [Artz, S.; Becker, M.; Beddall, A.; Bertella, C.; Blum, W.; Buscher, V.; Caputo, R.; Caudron, J.; Cuth, J.; Endner, O. C.; Ertel, E.; Fiedler, F.; Torregrosa, E. Fullana; Geisen, M.; Groh, S.; Heck, T.; Hulsing, T. A.; Jakobi, K. B.; Kaluza, A.; Karnevskiy, M.; Kleinknecht, K.; Kopke, L.; Lin, T. H.; Masetti, L.; Mattmann, J.; Meyer, C.; Moritz, S.; Pleskot, V.; Rave, S.; Sander, H. G.; Schaeffer, J.; Schafer, U.; Schmitz, S.; Schott, M.; Simioni, E.; Simon, M.; Tapprogge, S.; Urrejola, P.; Webb, S.; Wollstadt, S. J.; Yildirim, E.; Zimmermann, C.; Zinser, M.] Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany. [Barnes, S. L.; Bielski, R.; Cox, B. E.; Da Via, C.; Dann, N. S.; Forcolin, G. T.; Forti, A.; Ponce, J. M. Iturbe; Li, X.; Loebinger, F. K.; Marsden, S. P.; Masik, J.; Sanchez, F. J. Munoz; Neep, T. J.; Oh, A.; Ospanov, R.; Pater, J. R.; Peters, R. F. Y.; Pilkington, A. D.; Pin, A. W. J.; Price, D.; Qin, Y.; Queitsch-Maitland, M.; Raine, J. A.; Schweiger, H.; Shaw, S. M.; Tomlinson, L.; Watts, S.; Wilk, F.; Woudstra, M. J.; Wyatt, T. R.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England. [Aad, G.; Alstaty, M.; Barbero, M.; Calandri, A.; Calvet, T. P.; Coadou, Y.; Diaconu, C.; Diglio, S.; Djama, F.; Ellajosyula, V.; Feligioni, L.; Gao, J.; Hadef, A.; Hallewell, G. D.; Hubaut, F.; Kahn, S. J.; Knoops, E. B. F. G.; Le Guirriec, E.; Liu, J.; Liu, K.; Madaffari, D.; Monnier, E.; Muanza, S.; Nagy, E.; Pralavorio, P.; Rodina, Y.; Rozanov, A.; Talby, M.; Theveneaux-Pelzer, T.; Torres, R. E. Ticse; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.; Wang, C.; Zhang, R.] Aix Marseille Univ, CPPM, Marseille, France. [Aad, G.; Alstaty, M.; Barbero, M.; Calandri, A.; Calvet, T. P.; Coadou, Y.; Diaconu, C.; Diglio, S.; Ellajosyula, V.; Feligioni, L.; Gao, J.; Hadef, A.; Hallewell, G. D.; Hubaut, F.; Kahn, S. J.; Knoops, E. B. F. G.; Le Guirriec, E.; Liu, J.; Liu, K.; Madaffari, D.; Monnier, E.; Muanza, S.; Nagy, E.; Pralavorio, P.; Rodina, Y.; Talby, M.; Theveneaux-Pelzer, T.; Torres, R. E. Ticse; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.; Wang, J.; Zhang, R.] CNRS IN2P3, Marseille, France. [Bellomo, M.; Bernard, N. R.; Brau, B.; Dallapiccola, C.; Daya-Ishmukhametova, R. K.; Moyse, E. J. W.; Pais, P.; Pettersson, N. E.; Picazio, A.; Willocq, S.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA. [Belanger-Champagne, C.; Chuinard, A. J.; Corriveau, F.; Keyes, R. A.; Mantifel, R.; Prince, S.; Robertson, S. H.; Robichaud-Veronneau, A.; Stockton, M. C.; Stoebe, M.; Vachon, B.; Schroeder, T. Vazquez; Wang, K.; Warburton, A.] McGill Univ, Dept Phys, Montreal, PQ, Canada. [Barberio, E. L.; Brennan, A. J.; Dawe, E.; Jennens, D.; Kubota, T.; Le, B.; McDonald, E. F.; Milesi, M.; Nuti, F.; Rados, P.; Scutti, F.; Spiller, L. A.; Tan, K. G.; Taylor, G. N.; Taylor, P. T. E.; Ungaro, F. C.; Urquijo, P.; Volpi, G.; Zanzi, D.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Amidei, D.; Chelstowska, M. A.; Cheng, H. C.; Dai, T.; Diehl, E. B.; Edgar, R. C.; Feng, H.; Ferretti, C.; Fleischmann, P.; Goldfarb, S.; Guan, L.; Levin, D.; Liu, H.; Lu, N.; Marley, D. E.; Mc Kee, S. P.; McCarn, A.; Neal, H. A.; Qian, J.; Schwarz, T. A.; Searcy, J.; Sekhon, K.; Wu, Y.; Yu, J. M.; Zhang, D.; Zhou, B.; Zhu, J.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. [Arabidze, G.; Brock, R.; Chegwidden, A.; Fisher, W. C.; Halladjian, G.; Hauser, R.; Hayden, D.; Huston, J.; Martin, B.; Mondragon, M. C.; Plucinski, P.; Pope, B. G.; Schoenrock, B. D.; Schwienhorst, R.; Willis, C.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Alimonti, G.; Andreazza, A.; Baroncelli, A.; Camplani, A.; Carminati, L.; Cavalli, D.; Citterio, M.; Costa, G.; Fanti, M.; Giugni, D.; Lari, T.; Lazzaroni, M.; Mandelli, L.; Manzoni, S.; Mazza, S. M.; Meroni, C.; Monzani, S.; Perini, L.; Ragusa, F.; Ratti, M. G.; Resconi, S.; Shojaii, S.; Stabile, A.; Tartarelli, G. F.; Troncon, C.; Perez, M. Villaplana] INFN Sez Milano, Milan, Italy. [Andreazza, A.; Camplani, A.; Carminati, L.; Fanti, M.; Lazzaroni, M.; Manzoni, S.; Mazza, S. M.; Monzani, S.; Perini, L.; Ragusa, F.; Ratti, M. G.; Shojaii, S.; Turra, R.; Perez, M. Villaplana] Univ Milan, Dipartimento Fis, Milan, Italy. [Harkusha, S.; Kulchitsky, Y.; Kurochkin, Y. A.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk, Byelarus. [Hrynevich, A.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus. [Arguin, J-F.; Azuelos, G.; Dallaire, F.; Ducu, O. A.; Gagnon, L. G.; Gauthier, L.; Leroy, C.; Mochizuki, K.; Manh, T. Nguyen; Rezvani, R.; Saadi, D. Shoaleh] Univ Montreal, Grp Particle Phys, Montreal, PQ, Canada. [Akimov, A. V.; Gavrilenko, I. L.; Komar, A. A.; Mashinistov, R.; Mouraviev, S. V.; Nechaeva, P. Yu.; Shmeleva, A.; Sulin, V. V.; Tikhomirov, V. O.; Zhukov, K.] Russian 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.; Belyaev, N. L.; Bulekov, O.; Dolgoshein, B. A.; Kantserov, V. A.; Krasnopevtsev, D.; Romaniouk, A.; Shulga, E.; Smirnov, S. Yu.; Soldatov, E. Yu.; Tikhomirov, V. O.; Timoshenko, S.; Vorobev, K.] Natl Res Nucl Univ MEPhI, Moscow, Russia. [Gladilin, L. K.; Kramarenko, V. A.; Maevskiy, A.; Sivoklokov, S. Yu.; Smirnova, L. N.; Turchikhin, S.] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow, Russia. [Adomeit, S.; Bender, M.; Biebel, O.; Bock, C.; Bortfeldt, J.; Calfayan, P.; Chow, B. K. B.; Duckeck, G.; Hartmann, N. M.; Heinrich, J. J.; Hertenberger, R.; Hoenig, F.; Legger, F.; Lorenz, J.; Loesel, P. J.; Mann, A.; Mehlhase, S.; Meier, K.; Meineck, C.; Mitrevski, J.; Mueller, R. S. P.; Rauscher, F.; Ruschke, A.; Schachtner, B. M.; Schaile, D.; Valderanis, C.; Walker, R.; Wittkowski, J.] Univ Munich, Fak Phys, Munich, Germany. [Barillari, T.; Bethke, S.; Compostella, G.; Cortiana, G.; Ecker, K. M.; Flowerdew, M. J.; Giuliani, C.; Goblirsch-Kolb, M.; Ince, T.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kroha, H.; La Rosa, A.; Macchiolo, A.; Maier, A. A.; McCarthy, T. G.; Menke, S.; Mueller, F.; Nisius, R.; Nowak, S.; Oberlack, H.; Richter, R.; Salihagic, D.; Sandstroem, R.; Schacht, P.; Schmidt-Sommerfeld, K. R.; Schwegler, Ph.; Spettel, F.; Stonjek, S.; Terzo, S.; von der Schmitt, H.; Wildauer, A.] Werner Heisenberg Inst, Max Planck Inst Phys, Munich, Germany. [Fusayasu, T.; Shimojima, M.] Nagasaki Inst Appl Sci, Nagasaki, Japan. [Horii, Y.; Kentaro, K.; Onogi, K.; Tomoto, M.; Wakabayashi, J.; Yamauchi, K.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan. [Horii, Y.; Kentaro, K.; Onogi, K.; Tomoto, M.; Wakabayashi, J.; Yamauchi, K.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648601, Japan. [Aloisio, A.; Alviggi, M. G.; Canale, V.; Carlino, G.; Cirotto, F.; Conventi, F.; De Asmundis, R.; Della Pietra, M.; Doria, A.; Izzo, V.; Merola, L.; Perrella, S.; Rossi, E.; Sanchez, A.; Sekhniaidze, G.; Zurzolo, G.] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy. [Aloisio, A.; Alviggi, M. G.; Canale, V.; Cirotto, F.; Merola, L.; Perrella, S.; Rossi, E.; Sanchez, A.; Zurzolo, G.] Univ Naples Federico II, Dipartimento Fis, Naples, Italy. [Gorelov, I.; Hoeferkamp, M. R.; Mc Fadden, N. C.; Seidel, S. C.; Taylor, A. C.; Toms, K.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA. [Caron, S.; Colasurdo, L.; Croft, V.; De Groot, N.; Filthaut, F.; Galea, C.; Konig, A. C.; Nektarijevic, S.; Strubig, A.] Radboud Univ Nijmegen, Nikhef, Inst Math Astrophys & Particle Phys, NL-6525 ED Nijmegen, Netherlands. [Aben, R.; Angelozzi, I.; Bedognetti, M.; Beemster, L. J.; Bentvelsen, S.; Berge, D.; Bobbink, G. J.; Bos, K.; Brenner, L.; Butti, P.; Castelijn, R.; Colijn, A. P.; de Jong, P.; Deigaard, I.; Deluca, C.; Duda, D.; Ferrari, P.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kluit, P.; Koffeman, E.; Mahlstedt, J.; Meyer, J.; Oussoren, K. P.; Sabato, G.; Salek, D.; Slawinska, M.; Valencic, N.; Van Den Wollenberg, W.; Van Der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; van Vulpen, I.; Vankov, P.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.; Weits, H.; Williams, S.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands. [Aben, R.; Angelozzi, I.; Bedognetti, M.; Beemster, L. J.; Bentvelsen, S.; Berge, D.; Bobbink, G. J.; Bos, K.; Brenner, L.; Butti, P.; Castelijn, R.; Castelli, A.; Colijn, A. P.; de Jong, P.; Deigaard, I.; Duda, D.; Ferrari, P.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kluit, P.; Koffeman, E.; Mahlstedt, J.; Meyer, J.; Oussoren, K. P.; Sabato, G.; Salek, D.; Slawinska, M.; Valencic, N.; Van Den Wollenberg, W.; Van Der Deijl, P. C.; van der Geer, R.; van der Graaf, H.; van Vulpen, I.; Vankov, P.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.; Weits, H.; Williams, S.] Univ Amsterdam, Amsterdam, Netherlands. [Adelman, J.; Andari, N.; Burghgrave, B.; Chakraborty, D.; Saha, P.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Anisenkov, A. V.; Baldin, E. M.; Bobrovnikov, V. S.; Bogdanchikov, A. G.; Buzykaev, A. R.; Kazanin, V. F.; Kharlamov, A. G.; Korol, A. A.; Maslennikov, A. L.; Maximov, D. A.; Peleganchuk, S. V.; Rezanova, O. L.; Soukharev, A. M.; Talyshev, A. A.; Tikhonov, Yu. A.] SB RAS, Budker Inst Nucl Phys, Novosibirsk, Russia. [Becot, C.; Bernius, C.; Cranmer, K.; Haas, A.; Heinrich, L.; Kaplan, B.; Karthik, K.; Konoplich, R.; Mincer, A. I.; Nemethy, P.; Neves, R. M.] NYU, Dept Phys, 4 Washington Pl, New York, NY 10003 USA. [Beacham, J. B.; Che, S.; Gan, K. K.; Ishmukhametov, R.; Kagan, H.; Kass, R. D.; Looper, K. A.; Shrestha, S.; Tannenwald, B. B.] Ohio State Univ, Columbus, OH 43210 USA. [Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan. [Abbott, B.; Alhroob, M.; Bertsche, D.; De Benedetti, A.; Gutierrez, P.; Hasib, A.; Norberg, S.; Pearson, B.; Rifki, O.; Severini, H.; Skubic, P.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA. [Cantero, J.; Haley, J.; Jamin, D. O.; Khanov, A.; Rizatdinova, F.; Sidorov, D.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA. [Chytka, L.; Hamal, P.; Hrabovsky, M.; Kvita, J.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic. [Abreu, R.; Allen, B. W.; Brau, J. E.; Brost, E.; Hopkins, W. H.; Majewski, S.; Potter, C. T.; Radloff, P.; Sinev, N. B.; Strom, D. M.; Torrence, E.; Wanotayaroj, C.; Whalen, K.; Winklmeier, F.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA. [Abeloos, B.; Ayoub, M. K.; Bassalat, A.; Binet, S.; Bourdarios, C.; De Regie, J. B. De Vivie; Delgove, D.; Escalier, M.; Fayard, L.; Fournier, D.; Gkougkousis, E. L.; Goudet, C. R.; Grivaz, J. -F.; Hariri, F.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Kado, M.; Lounis, A.; Maiani, C.; Makovec, N.; Morange, N.; Nellist, C.; Petroff, P.; Poggioli, L.; Puzo, P.; Rousseau, D.; Rybkin, G.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Zerwas, D.; Zhang, Z.] Univ Paris 11, Univ Paris Saclay, CNRS IN2P3, LAL, Orsay, France. [Endo, M.; Nomachi, M.; Sugaya, Y.; Teoh, J. J.; Yamaguchi, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan. [Bugge, M. K.; Cameron, D.; Catmore, J. R.; Feigl, S.; Franconi, L.; Garonne, V.; Gjelsten, B. K.; Morisbak, V.; Nilsen, J. K.; Ould-Saada, F.; Pajchel, K.; Pedersen, M.; Raddum, S.; Read, A. L.; Rohne, O.; Sandaker, H.; Stapnes, S.; Strandlie, A.] Univ Oslo, Dept Phys, Oslo, Norway. [Artoni, G.; Barr, A. J.; Becker, K.; Beresford, L.; Bortoletto, D.; Cooper-Sarkar, A. M.; Ortuzar, M. Crispin; Fawcett, W. J.; Frost, J. A.; Gallas, E. J.; Gupta, S.; Gwenlan, C.; Hays, C. P.; Henderson, J.; Huffman, T. B.; Issever, C.; Kalderon, C. W.; Nagai, K.; Nickerson, R. B.; Norjoharuddeen, N.; Petrov, M.; Pickering, M. A.; Tseng, J. C-L.; Viehhauser, G. H. A.; Vigani, L.; Weidberg, A. R.; Zhong, J.] Univ Oxford, Dept Phys, Oxford, England. [Dondero, P.; Ferrari, R.; Fraternali, M.; Gaudio, G.; Introzzi, G.; Lanza, A.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimoldi, A.; Vercesi, V.] Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy. [Dondero, P.; Fraternali, M.; Introzzi, G.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimoldi, A.] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy. [Balunas, W. K.; Brendlinger, K.; Di Clemente, W. K.; Fletcher, R. R. M.; Haney, B.; Heim, S.; Hines, E.; Jackson, B.; Kroll, J.; Lipeles, E.; Miguens, J. Machado; Meyer, C.; Mistry, K. P.; Reichert, J.; Thomson, E.; Vanguri, R.; Williams, H. H.; Yoshihara, K.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA. [Basalaev, A.; Ezhilov, A.; Fedin, O. L.; Gratchev, V.; Levchenko, M.; Maleev, V. P.; Naryshkin, I.; Ryabov, Y. F.; Schegelsky, V. A.; Seliverstov, D. M.; Solovyev, V.] Natl Res Ctr Kurchatov Inst, BP Konstantinov Petersburg Nucl Phys Inst, St Petersburg, Russia. [Annovi, A.; Bertolucci, F.; Biesuz, N. V.; Cavasinni, V.; Chiarelli, G.; Del Prete, T.; Dell'Orso, M.; Donati, S.; Giannetti, P.; Leone, S.; Roda, C.; Scuri, F.; Sotiropoulou, C. L.; Spalla, M.; Volpi, G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Annovi, A.; Bertolucci, F.; Biesuz, N. V.; Cavasinni, V.; Chiarelli, G.; Del Prete, T.; Dell'Orso, M.; Donati, S.; Leone, S.; Roda, C.; Scuri, F.; Sotiropoulou, C. L.; Spalla, M.; Volpi, G.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy. [Bianchi, R. M.; Boudreau, J.; Escobar, C.; Farina, C.; Hong, T. M.; Mueller, J.; Sapp, K.; Su, J.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. [Aguilar-Saavedra, J. A.; Amor Dos Santos, S. P.; Amorim, A.; Araque, J. P.; Carvalho, J.; Castro, N. F.; Muino, P. Conde; Da Cunha Sargedas De Sousa, M. J.; Fiolhais, M. C. N.; Galhardo, B.; Gomes, A.; Goncalo, R.; Jorge, P. M.; Lopes, L.; Maio, A.; Maneira, J.; Seabra, L. F. Oleiro; Onofre, A.; Palma, A.; Pedro, R.; Santos, H.; Saraiva, J. G.; Silva, J.; Delgado, A. Tavares; Veloso, F.] Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon, Portugal. [Amorim, A.; Muino, P. Conde; Da Cunha Sargedas De Sousa, M. J.; Gomes, A.; Jorge, P. M.; Miguens, J. Machado; Maio, A.; Maneira, J.; Pedro, R.; Delgado, A. Tavares] Univ Lisbon, Fac Ciencias, Lisbon, Portugal. [Amor Dos Santos, S. P.; Carvalho, J.; Fiolhais, M. C. N.; Galhardo, B.; Veloso, F.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal. [Gomes, A.; Maio, A.; Saraiva, J. G.; Silva, J.] Univ Lisbon, Ctr Fis Nucl, P-1699 Lisbon, Portugal. [Onofre, A.] Univ Minho, Dept Fis, Braga, Portugal. [Aguilar-Saavedra, J. A.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain. [Aguilar-Saavedra, J. A.] Univ Granada, CAFPE, Granada, Spain. Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Fis, Caparica, Portugal. Univ Nova Lisboa, Fac Ciencias & Tecnol, CEFITEC, Caparica, Portugal. [Chudoba, J.; Havranek, M.; Hejbal, J.; Jakoubek, T.; Kepka, O.; Kupco, A.; Kus, V.; Lokajicek, M.; Lysak, R.; Marcisovsky, M.; Mikestikova, M.; Nemecek, S.; Penc, O.; Sicho, P.; Staroba, P.; Svatos, M.; Tasevsky, M.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic. [Augsten, K.; Caforio, D.; Gallus, P.; Guenther, J.; Hubacek, Z.; Myska, M.; Pospisil, S.; Seifert, F.; Simak, V.; Slavicek, T.; Solar, M.; Sopczak, A.; Sopko, V.; Suk, M.; Turecek, D.; Vacek, V.; Vokac, P.; Vykydal, Z.; Zeman, M.] Czech Tech Univ, Prague, Czech Republic. [Balek, P.; Berta, P.; Carli, I.; Davidek, T.; Dolejsi, J.; Dolezal, Z.; Faltova, J.; Kodys, P.; Kosek, T.; Leitner, R.; Reznicek, P.; Scheirich, D.; Slovak, R.; Spousta, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [Borisov, A.; Cheremushkina, E.; Denisov, S. P.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Golubkov, D.; Kamenshchikov, A.; Karyukhin, A. N.; Kozhin, A. S.; Minaenko, A. A.; Myagkov, A. G.; Nikolaenko, V.; Ryzhov, A.; Solodkov, A. A.; Solovyanov, O. V.; Starchenko, E. A.; Vaniachine, A.; Zaitsev, A. M.; Zenin, O.] NRC KI, State Res Ctr Inst High Energy Phys Protvino, Moscow, Russia. [Adye, T.; Baines, J. T.; Barnett, B. M.; Burke, S.; Dewhurst, A.; Dopke, J.; Emeliyanov, D.; Gallop, B. J.; Gee, C. N. P.; Haywood, S. J.; Kirk, J.; Martin-Haugh, S.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Phillips, P. W.; Sankey, D. P. C.; Sawyer, C.; Tyndel, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England. [Anulli, F.; Bagiacchi, P.; Bagnaia, P.; Bauce, M.; Bini, C.; Ciapetti, G.; Corradi, M.; De Pedis, D.; De Salvo, A.; Di Donato, C.; Falciano, S.; Gentile, S.; Giagu, S.; Gustavino, G.; Kuna, M.; Lacava, F.; Luci, C.; Luminari, L.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Rosati, S.; Tehrani, F. 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[Ceradini, F.; Di Micco, B.; Orestano, D.; Petrucci, F.; Puddu, D.; Salamanna, G.; Sessa, M.; Taccini, C.] Univ Roma Tre, Dipartimento Matemat & Fis, Rome, Italy. [Benchekroun, D.; Chafaq, A.; Hoummada, A.] Reseau Univ Phys Hautes Energies Univ Hassan II, 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 Marrakech, Fac Sci Semlalia, Marrakech, Morocco. [Aaboud, M.; Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco. [Aaboud, M.; Derkaoui, J. E.; Ouchrif, M.; Tayalati, Y.] LPTPM, Oujda, Morocco. [El Moursli, R. Cherkaoui; Fassi, F.; Haddad, N.; Idrissi, Z.] Univ Mohammed 5, Fac Sci, Rabat, Morocco. [Bachacou, H.; Balli, F.; Bauer, F.; Besson, N.; Blanchard, J-B.; Blanco, J. E.; Boonekamp, M.; Chevalier, L.; Hoffmann, M. Dano; Deliot, F.; Denysiuk, D.; Etienvre, A. I.; Formica, A.; Giraud, P. F.; Da Costa, J. Goncalves Pinto Firmino; Guyot, C.; Hanna, R.; Hassani, S.; Jeanneau, F.; Kivernyk, O.; Kozanecki, W.; Kukla, R.; Laporte, J. F.; Le Quilleuc, E. P.; Lesage, A. A. J.; Mansoulie, B.; Meyer, J-P.; Nicolaidou, R.; Ouraou, A.; Perego, M. M.; Peyaud, A.; Royon, C. R.; Saimpert, M.; Schoeffel, L.; Schune, Ph.; Schwemling, Ph.; Schwindling, J.] CEA Saclay, DSM IRFU, Inst Rech Lois Fondamentales Univers, F-91191 Gif Sur Yvette, France. [AbouZeid, O. S.; Battaglia, M.; Debenedetti, C.; Grillo, A. A.; Hance, M.; Kuhl, A.; Law, A. T.; Litke, A. M.; Lockman, W. S.; Nielsen, J.; Reece, R.; Rose, P.; Sadrozinski, H. F-W.; Schier, S.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA. [Alpigiani, C.; Blackburn, D.; Goussiou, A. G.; Hsu, S. -C.; Johnson, W. J.; Lubatti, H. J.; Marx, M.; Meehan, S.; Rompotis, N.; Rosten, R.; Rothberg, J.; De Bruin, P. H. Sales; Pastor, E. Torro; Watts, G.; Whallon, N. L.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Anastopoulos, C.; Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Fletcher, G. T.; Hamity, G. N.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Klinger, J. A.; Korolkova, E. V.; Kyriazopoulos, D.; Paredes, B. Lopez; Macdonald, C. M.; Miyagawa, P. S.; Parker, K. A.; Vickey, T.; Boeriu, O. E. Vickey] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England. [Hasegawa, Y.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan. [Atlay, N. B.; Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Ghasemi, S.; Ibragimov, I.; Li, Y.; Rosenthal, O.; Walkowiak, W.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany. [Buat, Q.; Horton, A. J.; Mori, D.; O'Neil, D. C.; Pachal, K.; Stelzer, B.; Temple, D.; Torres, H.; Van Nieuwkoop, J.; Vetterli, M. C.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada. [Armbruster, A. J.; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Black, J. E.; Gao, Y. S.; Garelli, N.; Grenier, P.; Ilic, N.; Kagan, M.; Kocian, M.; Koi, T.; Malone, C.; Moss, J.; Mount, R.; Nachman, B. P.; Nef, P. D.; Piacquadio, G.; Rubbo, F.; Salnikov, A.; Schwartzman, A.; Tompkins, L.; Wittgen, M.; Young, C.; Zeng, Q.] SLAC Natl Accelerator Lab, Stanford, CA USA. [Astalos, R.; Bartos, P.; Blazek, T.; Dado, T.; Melo, M.; Plazak, L.; Smiesko, J.; Sykora, I.; Tokar, S.; Zenis, T.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia. [Bruncko, D.; Kladiva, E.; Strizenec, P.; Urban, J.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice 04353, Slovakia. [Castaneda-Miranda, E.; Hamilton, A.; Yacoob, S.] Univ Cape Town, Dept Phys, ZA-7925 Cape Town, South Africa. [Connell, S. H.; Govender, N.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa. [Hsu, C.; Kar, D.; Garcia, B. R. Mellado; Ruan, X.] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa. [Abulaiti, Y.; Akerstedt, H.; Asman, B.; Bendtz, K.; Bertoli, G.; Bylund, O. Bessidskaia; Bohm, C.; Clement, C.; Cribbs, W. A.; Hellman, S.; Jon-And, K.; Klimek, P.; Lundberg, O.; Milstead, D. A.; Moa, T.; Molander, S.; Pani, P.; Poettgen, R.; Rossetti, V.; Shaikh, N. W.; Shcherbakova, A.; Silverstein, S. B.; Sjolin, J.; Strandberg, S.; Ughetto, M.; Wallangen, V.] Univ Stockholm, Dept Phys, Vanadisvagen 9, S-10691 Stockholm, Sweden. [Abulaiti, Y.; Akerstedt, H.; Asman, B.; Bendtz, K.; Bylund, O. Bessidskaia; Clement, C.; Cribbs, W. A.; Hellman, S.; Jon-And, K.; Klimek, P.; Lundberg, O.; Milstead, D. A.; Moa, T.; Molander, S.; Pani, P.; Poettgen, R.; Rossetti, V.; Shaikh, N. W.; Shcherbakova, A.; Sjolin, J.; Strandberg, S.; Ughetto, M.; Santurio, E. Valdes; Wallangen, V.] Oskar Klein Ctr, Stockholm, Sweden. [Amorim, A.; Lund-Jensen, B.; Sidebo, P. E.; Strandberg, J.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden. [Balestri, T.; Bee, C. P.; Campoverde, A.; Chen, K.; Hobbs, J.; Huo, P.; Jia, J.; Li, H.; Lindquist, B. E.; McCarthy, R. L.; Montalbano, A.; Morvaj, L.; Radhakrishnan, S. K.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.; Zaman, A.; Zhou, M.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Balestri, T.; Bee, C. P.; Campoverde, A.; Chen, K.; Hobbs, J.; Huo, P.; Jia, J.; Li, H.; Lindquist, B. E.; McCarthy, R. L.; McCarthy, T. G.; Montalbano, A.; Morvaj, L.; Radhakrishnan, S. K.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.; Zaman, A.; Zhou, M.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Abraham, N. L.; Allbrooke, B. M. M.; Asquith, L.; Cerri, A.; Barajas, C. A. Chavez; De Sanctis, U.; De Santo, A.; Grout, Z. J.; Lerner, G.; Miano, F.; Salvatore, F.; Castillo, I. Santoyo; Shehu, C. Y.; Suruliz, K.; Sutton, M. R.; Vivarelli, I.; Winston, O. J.] Univ Sussex, Dept Phys & Astron, Brighton, E Sussex, England. [Black, C. W.; Cuthbert, C.; Finelli, K. D.; Jeng, G. -Y.; Limosani, A.; Morley, A. K.; Saavedra, A. F.; Scarcella, M.; Varvell, K. E.; Wang, J.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Hou, S.; Hsu, P. J.; Lee, S. C.; Lin, S. C.; Liu, B.; Liu, D.; Lo Sterzo, F.; Mazini, R.; Shi, L.; Soh, D. A.; Song, H. Y.; Teng, P. K.; Wang, S. M.; Yang, Y.; Zhang, G.] Acad Sinica, Inst Phys, Taipei, Taiwan. [Abreu, H.; Gozani, E.; Rozen, Y.; Tarem, S.; van Eldik, N.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel. [Abramowicz, H.; Alexander, G.; Ashkenazi, A.; Bella, G.; Benary, O.; Benhammou, Y.; Davies, M.; Duarte-Campderros, J.; Etzion, E.; Gershon, A.; Gueta, O.; Oren, Y.; Soffer, A.; Taiblum, N.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Gkaitatzis, S.; Gkialas, I.; Iliadis, D.; Kimura, N.; Kordas, K.; Kourkoumeli-Charalampidi, A.; Leisos, A.; Papageorgiou, K.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece. [Asai, S.; Chen, S.; Dohmae, T.; Enari, Y.; Hanawa, K.; Kanaya, N.; Kataoka, Y.; Kato, C.; Kawamoto, T.; Kazama, S.; Kobayashi, A.; Komori, Y.; Kozakai, C.; Mashimo, T.; Masubuchi, T.; Minami, Y.; Mori, T.; Morinaga, M.; Nakamura, T.; Ninomiya, Y.; Nobe, T.; Saito, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamanaka, T.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan. [Asai, S.; Chen, S.; Dohmae, T.; Enari, Y.; Hanawa, K.; Kanaya, N.; Kataoka, Y.; Kazama, S.; Kobayashi, A.; Kobayashi, T.; Komori, Y.; Kozakai, C.; Mashimo, T.; Masubuchi, T.; Minami, Y.; Mori, T.; Morinaga, M.; Nakamura, T.; Ninomiya, Y.; Nobe, T.; Saito, T.; Sakamoto, H.; Sasaki, Y.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamanaka, T.] Univ Tokyo, Dept Phys, Tokyo, Japan. [Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan. [Hirose, M.; Ishitsuka, M.; Jinnouchi, O.; Kobayashi, D.; Kuze, M.; Motohashi, K.; Todome, K.; Yamaguchi, D.] Tokyo Inst Technol, Dept Phys, Oh Okayama, Tokyo 152, Japan. [Batista, S. J.; Chau, C. C.; Cormier, K. J. R.; DeMarco, D. A.; Di Sipio, R.; Diamond, M.; Keoshkerian, H.; Krieger, P.; Liblong, A.; Mc Goldrick, G.; Orr, R. S.; Pascuzzi, V. R.; Polifka, R.; Rudolph, M. S.; Savard, P.; Sinervo, P.; Taenzer, J.; Teuscher, R. J.; Trischuk, W.; Veloce, L. M.; Venturi, N.] Univ Toronto, Dept Phys, Toronto, ON, Canada. [Azuelos, G.; Canepa, A.; Chekulaev, S. V.; Gingrich, D. M.; Hod, N.; Jovicevic, J.; Oakham, F. G.; Codina, E. Perez; Savard, P.; Schneider, B.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada. [Ramos, J. Manjarres; Palacino, G.; Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada. [Hara, K.; Ito, F.; Kasahara, K.; Kim, S. H.; Kiuchi, K.; Nagata, K.; Okawa, H.; Sato, K.; Ukegawa, F.] Univ Tsukuba, Fac Pure & Appl Sci, Tsukuba, Ibaraki, Japan. [Hara, K.; Ito, F.; Kasahara, K.; Kim, S. H.; Kiuchi, K.; Nagata, K.; Okawa, H.; Sato, K.; Ukegawa, F.] Univ Tsukuba, Ctr Integrated Res Fundamental Sci & Engn, Tsukuba, Ibaraki, Japan. [Beauchemin, P. H.; Meoni, E.; Sliwa, K.; Son, H.; Wetter, J.] Tufts Univ, Dept Phys & Astron, Medford, MA 02155 USA. [Casper, D. W.; Corso-Radu, A.; Frate, M.; Guest, D.; Lankford, A. J.; Mete, A. S.; Nelson, A.; Scannicchio, D. A.; Schernau, M.; Shimmin, C. O.; Taffard, A.; Unel, G.; Whiteson, D.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA. [Acharya, B. S.; Boldyrev, A. S.; Cobal, M.; Giordani, M. P.; Pinamonti, M.; Quayle, W. B.; Serkin, L.; Shaw, K.; Soualah, R.; Truong, L.] Ist Nazl Fis Nucl, Grp Coll Udine, Sez Trieste, Udine, Italy. [Acharya, B. S.; Quayle, W. B.; Serkin, L.; Shaw, K.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy. [Boldyrev, A. S.; Cobal, M.; Giordani, M. P.; Pinamonti, M.; Soualah, R.; Truong, L.] Univ Udine, Dipartimento Chim Fis & Ambiente, I-33100 Udine, Italy. [Kuutmann, E. Bergeaas; Brenner, R.; Ekelof, T.; Ellert, M.; Ferrari, A.; Maddocks, H. J.; Ohman, H.; Pelikan, D.; Rangel-Smith, C.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden. [Atkinson, M.; Armadans, R. Caminal; Cavaliere, V.; Chang, P.; Errede, S.; Hooberman, B. H.; Lie, K.; Liss, T. M.; Liu, L.; Long, J. D.; Neubauer, M. S.; Rybar, M.; Sickles, A. M.; Vichou, I.; Zeng, J. C.] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [Piqueras, D. Alvarez; Navarro, L. Barranco; Urban, S. Cabrera; Gimenez, V. Castillo; Alberich, L. Cerda; Costa, M. J.; Martinez, P. Fernandez; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Pena, J. Jimenez; King, M.; Lacasta, C.; Lacuesta, V. R.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Mitsou, V. A.; Lopez, S. Pedraza; Rodriguez, D. Rodriguez; Adam, E. Romero; Ros, E.; Salt, J.; Sanchez, J.; Martinez, V. Sanchez; Soldevila, U.; Valero, A.; Ferrer, J. A. Valls; Vos, M.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain. [Piqueras, D. Alvarez; Navarro, L. Barranco; Urban, S. Cabrera; Gimenez, V. Castillo; Alberich, L. Cerda; Costa, M. J.; Martinez, P. Fernandez; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Pena, J. Jimenez; King, M.; Lacasta, C.; Lacuesta, V. R.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Mitsou, V. A.; Lopez, S. Pedraza; Rodriguez, D. Rodriguez; Adam, E. Romero; Ros, E.; Salt, J.; Sanchez, J.; Martinez, V. Sanchez; Soldevila, U.; Valero, A.; Ferrer, J. A. Valls; Vos, M.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain. [Piqueras, D. Alvarez; Navarro, L. Barranco; Urban, S. Cabrera; Gimenez, V. Castillo; Alberich, L. Cerda; Costa, M. J.; Martinez, P. Fernandez; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Pena, J. Jimenez; King, M.; Lacasta, C.; Lacuesta, V. R.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Mitsou, V. A.; Lopez, S. Pedraza; Rodriguez, D. Rodriguez; Adam, E. Romero; Ros, E.; Salt, J.; Sanchez, J.; Soldevila, U.; Valero, A.; Ferrer, J. A. Valls; Vos, M.] Univ Valencia, Dept Ingn Elect, Valencia, Spain. [Piqueras, D. Alvarez; Navarro, L. Barranco; Beddall, A.; Urban, S. Cabrera; Gimenez, V. Castillo; Alberich, L. Cerda; Costa, M. J.; Martinez, P. Fernandez; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Pena, J. Jimenez; King, M.; Lacasta, C.; Lacuesta, V. R.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Lopez, S. Pedraza; Rodriguez, D. Rodriguez; Adam, E. Romero; Ros, E.; Salt, J.; Sanchez, J.; Martinez, V. Sanchez; Soldevila, U.; Ferrer, J. A. Valls; Vos, M.] Univ Valencia, IMB CNM, Valencia, Spain. [Piqueras, D. Alvarez; Navarro, L. Barranco; Urban, S. Cabrera; Gimenez, V. Castillo; Alberich, L. Cerda; Costa, M. J.; Martinez, P. Fernandez; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Navarro, J. E. Garcia; de la Hoz, S. Gonzalez; Jimenez, Y. Hernandez; Higon-Rodriguez, E.; Pena, J. Jimenez; King, M.; Lacasta, C.; Lacuesta, V. R.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Mitsou, V. A.; Lopez, S. Pedraza; Rodriguez, D. Rodriguez; Adam, E. Romero; Ros, E.; Salt, J.; Sanchez, J.; Martinez, V. Sanchez; Soldevila, U.; Valero, A.; Ferrer, J. A. Valls; Vos, M.] CSIC, Valencia, Spain. [Annovi, A.; Danninger, M.; Fedorko, Ow.; Gecse, Z.; Gignac, M.; Henkelmann, S.; King, S. B.; Lister, A.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada. [Albert, J.; David, C.; Elliot, A. A.; Fincke-Keeler, M.; Hamano, K.; Hill, E.; Keeler, R.; Kowalewski, R.; Kuwertz, E. S.; Kwan, T.; LeBlanc, M.; Lefebvre, M.; McPherson, R. A.; Pearce, J.; Seuster, R.; Sobie, R.; Trovatelli, M.; Venturi, M.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada. [Beckingham, M.; Ennis, J. S.; Farrington, S. M.; Harrison, P. F.; Jeske, C.; Jones, G.; Martin, T. A.; Murray, W. J.; Pianori, E.; Spangenberg, M.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Iizawa, T.; Mitani, T.; Sakurai, Y.; Yorita, K.] Waseda Univ, Tokyo, Japan. [Bressler, S.; Citron, Z. H.; Duchovni, E.; Dumancic, M.; Gross, E.; Kohler, M. K.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Pitt, M.; Ravinovich, I.; Roth, I.; Schaarschmidt, J.; Smakhtin, V.; Turgeman, D.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel. [Banerjee, Sw.; Guan, W.; Hard, A. S.; Heng, Y.; Ji, H.; Kaplan, L. S.; Kashif, L.; Kruse, A.; Ming, Y.; Wang, F.; Wiedenmann, W.; Wu, S. L.; Yang, H.; Zhang, F.; Zobernig, G.] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. [Kuger, F.; Redelbach, A.; Schreyer, M.; Sidiropoulou, O.; Siragusa, G.; Stroehmer, R.; Trefzger, T.; Weber, S. W.; Zibell, A.] Univ Wurzburg, Fac Phys & Astron, D-97070 Wurzburg, Germany. [Bannoura, A. A. E.; Boerner, D.; Braun, H. M.; Cornelissen, T.; Ellinghaus, F.; Ernis, G.; Fischer, J.; Flick, T.; Gabizon, O.; Gilles, G.; Hamacher, K.; Harenberg, T.; Hirschbuehl, D.; Kersten, S.; Kuechler, J. T.; Maettig, P.; Neumann, M.; Pataraia, S.; Riegel, C. J.; Sandhoff, M.; Tepel, F.; Wagner, W.; Zeitnitz, C.] Berg Univ Wuppertal, Fachgrp Phys, Fac Math & Nat Wissensch, Wuppertal, Germany. [Baker, O. K.; Noccioli, E. Benhar; Cummings, J.; Demers, S.; Ideal, E.; Lagouri, T.; Leister, A. G.; Loginov, A.; Hernandez, D. Paredes; Thomas, J. P.; Tipton, P.; Vasquez, J. G.; Wang, X.] Yale Univ, Dept Phys, New Haven, CT USA. 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[Yusuff, I.] Univ Malaya, Dept Phys, Kuala Lumpur 59100, Malaysia. RP Aaboud, M (reprint author), Univ Mohamed Premier, Fac Sci, Oujda, Morocco.; Aaboud, M (reprint author), LPTPM, Oujda, Morocco. RI Chekulaev, Sergey/O-1145-2015; Snesarev, Andrey/H-5090-2013; Solodkov, Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Carli, Ina/C-2189-2017; Guo, Jun/O-5202-2015; Peleganchuk, Sergey/J-6722-2014; Yang, Haijun/O-1055-2015; Li, Liang/O-1107-2015; Monzani, Simone/D-6328-2017; Kuday, Sinan/C-8528-2014; Lazzaroni, Massimo/N-3675-2015; Kukla, Romain/P-9760-2016; Goncalo, Ricardo/M-3153-2016; Gavrilenko, Igor/M-8260-2015; Owen, Mark/Q-8268-2016; Shulga, Evgeny/R-1759-2016; Maleev, Victor/R-4140-2016; Camarri, Paolo/M-7979-2015; Mindur, Bartosz/A-2253-2017; Mashinistov, Ruslan/M-8356-2015; Gutierrez, Phillip/C-1161-2011; Fabbri, Laura/H-3442-2012; Kantserov, Vadim/M-9761-2015; Prokoshin, Fedor/E-2795-2012; Doyle, Anthony/C-5889-2009; Conde Muino, Patricia/F-7696-2011; Brooks, William/C-8636-2013; Grinstein, Sebastian/N-3988-2014; Zhukov, Konstantin/M-6027-2015; Stabile, Alberto/L-3419-2016; Warburton, Andreas/N-8028-2013; Boyko, Igor/J-3659-2013; Villa, Mauro/C-9883-2009; Coccaro, Andrea/P-5261-2016; Staroba, Pavel/G-8850-2014; Tikhomirov, Vladimir/M-6194-2015; Gladilin, Leonid/B-5226-2011; Maneira, Jose/D-8486-2011; Livan, Michele/D-7531-2012; messina, andrea/C-2753-2013; Ippolito, Valerio/L-1435-2016; Carvalho, Joao/M-4060-2013; Mitsou, Vasiliki/D-1967-2009; White, Ryan/E-2979-2015; Smirnova, Oxana/A-4401-2013; Di Nardo, Roberto/J-4993-2012; Ventura, Andrea/A-9544-2015 OI Lacasta, Carlos/0000-0002-2623-6252; Belanger-Champagne, Camille/0000-0003-2368-2617; Belyaev, Nikita/0000-0002-1131-7121; Solodkov, Alexander/0000-0002-2737-8674; Zaitsev, Alexandre/0000-0002-4961-8368; Carli, Ina/0000-0002-0411-1141; Guo, Jun/0000-0001-8125-9433; Peleganchuk, Sergey/0000-0003-0907-7592; Li, Liang/0000-0001-6411-6107; Monzani, Simone/0000-0002-0479-2207; Kuday, Sinan/0000-0002-0116-5494; Veneziano, Stefano/0000-0002-2598-2659; Lazzaroni, Massimo/0000-0002-4094-1273; Kukla, Romain/0000-0002-1140-2465; Goncalo, Ricardo/0000-0002-3826-3442; Owen, Mark/0000-0001-6820-0488; Shulga, Evgeny/0000-0001-5099-7644; Camarri, Paolo/0000-0002-5732-5645; Mindur, Bartosz/0000-0002-5511-2611; Mashinistov, Ruslan/0000-0001-7925-4676; Fabbri, Laura/0000-0002-4002-8353; Kantserov, Vadim/0000-0001-8255-416X; Prokoshin, Fedor/0000-0001-6389-5399; Doyle, Anthony/0000-0001-6322-6195; Conde Muino, Patricia/0000-0002-9187-7478; Brooks, William/0000-0001-6161-3570; Grinstein, Sebastian/0000-0002-6460-8694; Stabile, Alberto/0000-0002-6868-8329; Warburton, Andreas/0000-0002-2298-7315; Boyko, Igor/0000-0002-3355-4662; Villa, Mauro/0000-0002-9181-8048; Coccaro, Andrea/0000-0003-2368-4559; Tikhomirov, Vladimir/0000-0002-9634-0581; Gladilin, Leonid/0000-0001-9422-8636; Maneira, Jose/0000-0002-3222-2738; Livan, Michele/0000-0002-5877-0062; Ippolito, Valerio/0000-0001-5126-1620; Carvalho, Joao/0000-0002-3015-7821; Mitsou, Vasiliki/0000-0002-1533-8886; White, Ryan/0000-0003-3589-5900; Smirnova, Oxana/0000-0003-2517-531X; Ventura, Andrea/0000-0002-3368-3413 FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW, 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; MPO CR, Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark; IN2P3-CNRS, France; CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, Germany; HGF, Germany; MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, Israel; I-CORE, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; FOM, Netherlands; NWO, Netherlands; RCN, Norway; MNiSW, Poland; NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia, Russian Federation; NRC KI, Russian Federation; JINR; MESTD, Serbia;; MSSR, Slovakia; ARRS, Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SERI, Switzerland; SNSF, Switzerland; Cantons of Bern, Switzerland; Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, U.K.; DOE, U.S.; NSF, U.S.; BCKDF; Canada Council; CANARIE; CRC; Compute Canada; FQRNT; Ontario Innovation Trust, Canada; EPLANET; ERC; FP7; Horizon 2020; Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex; Idex, ANR; Region Auvergne; Fondation Partager le Savoir, France; DFG; AvH Foundation, Germany; Herakleitos programme; Thales programme; Aristeia programme; EU-ESF; Greek NSRF; BSF, Israel; GIF, Israel; Minerva, Israel; BRF, Norway; Generalitat de Catalunya, Spain; Generalitat Valenciana, Spain; Royal Society, U.K.; Leverhulme Trust, U.K. 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; BMWFW 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 and DNSRC, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, U.K.; DOE and NSF, U.S. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, ANR, Region Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, U.K. 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 (U.S.) and in the Tier-2 facilities worldwide. NR 58 TC 2 Z9 2 U1 22 U2 56 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. 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Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Naganoma, J. Nakano, I. Napier, A. Nett, J. Nigmanov, T. Nodulman, L. Noh, S. Y. Norniella, O. Oakes, L. Oh, S. H. Oh, Y. D. Okusawa, T. Orava, R. Ortolan, L. Pagliarone, C. Palencia, E. Palni, P. Papadimitriou, V. Parker, W. Pauletta, G. Paulini, M. Paus, C. Phillips, T. J. Piacentino, G. Pianori, E. Pilot, J. Pitts, K. Plager, C. Pondrom, L. Poprocki, S. Potamianos, K. Pranko, A. Prokoshin, F. Ptohos, F. Punzi, G. Redondo Fernandez, I. Renton, P. Rescigno, M. Rimondi, F. Ristori, L. Robson, A. Rodriguez, T. Rolli, S. Ronzani, M. Roser, R. Rosner, J. L. Ruffini, F. Ruiz, A. Russ, J. Rusu, V. Sakumoto, W. K. Sakurai, Y. Santi, L. Sato, K. Saveliev, V. Savoy-Navarro, A. Schlabach, P. Schmidt, E. E. Schwarz, T. Scodellaro, L. Scuri, F. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shochet, M. Shreyber-Tecker, I. Simonenko, A. Sliwa, K. Smith, J. R. Snider, F. D. Song, H. Sorin, V. St Denis, R. Stancari, M. Stentz, D. Strologas, J. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thomson, E. Thukral, V. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Ukegawa, F. Uozumi, S. Vazquez, F. Velev, G. Vellidis, C. Vernieri, C. Vidal, M. Vilar, R. Vizan, J. Vogel, M. Volpi, G. Wagner, P. Wallny, R. Wang, S. M. Waters, D. Wester, W. C., III Whiteson, D. Wicklund, A. B. Wilbur, S. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamato, D. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Zanetti, A. M. Zeng, Y. Zhou, C. Zucchelli, S. CA CDF Collaboration TI Measurement of sin(2) theta(lept)(eff) using e(+)e(-) pairs from gamma*/Z bosons produced in p(p)over-bar collisions at a center- of- momentum energy of 1.96 TeV SO PHYSICAL REVIEW D LA English DT Article ID QED RADIATIVE-CORRECTIONS; UNIVERSAL MONTE-CARLO; TO-BACK JETS; PARTON DISTRIBUTIONS; ELECTROMAGNETIC CALORIMETER; ELECTROWEAK MEASUREMENTS; SEMIANALYTICAL PROGRAM; HADRONIC COLLISIONS; TRANSVERSE-MOMENTUM; W-BOSON AB At the Fermilab Tevatron proton-antiproton (p (p) over bar) collider, Drell-Yan lepton pairs are produced in the process p (p) over bar -> e(+)e(-) + X through an intermediate gamma*/Z boson. The forward-backward asymmetry in the polar-angle distribution of the e(-) as a function of the e(+)e(-)-pair mass is used to obtain sin(2) theta(lept)(eff), the effective leptonic determination of the electroweak-mixing parameter sin(2) theta(W). The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.4 fb(-1) of integrated luminosity from p (p) over bar collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of sin(2) theta(lept)(eff) is found to be 0.23248 +/- 0.00053. The combination with the previous CDF measurement based on mu(+)mu(-) pairs yields sin(2) theta(lept)(eff) = 0.23221 +/- 0.00046. This result, when interpreted within the specified context of the standard model assuming sin(2) theta(W) = 1 - M-W(2)/M-Z(2) and that the W- and Z-boson masses are on-shell, yields sin(2) theta(W) = 0.22400 +/- 0.00045, or equivalently a W-boson mass of 80.328 +/- 0.024 GeV/c(2). C1 [Chen, Y. C.; Hou, S.; Mitra, A.; Teng, P. K.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [Auerbach, B.; Nodulman, L.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. 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RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland.; Aaltonen, T (reprint author), Helsinki Inst Phys, FIN-00014 Helsinki, Finland. RI Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Ruiz, Alberto/E-4473-2011; Paulini, Manfred/N-7794-2014 OI Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Ruiz, Alberto/0000-0002-3639-0368; Paulini, Manfred/0000-0002-6714-5787 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A. P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; Korean World Class University Program; National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, United Kingdom; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland; Australian Research Council (ARC); EU community Marie Curie Fellowship [302103] FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; the Australian Research Council (ARC); and the EU community Marie Curie Fellowship Contract No. 302103. NR 73 TC 2 Z9 2 U1 11 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 28 PY 2016 VL 93 IS 11 AR 112016 DI 10.1103/PhysRevD.93.112016 PG 29 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9MI UT WOS:000378819900003 ER PT J AU Bazavov, A Bernard, C Bouchard, CM Chang, CC DeTar, C Du, DP El-Khadra, AX Freeland, ED Gamiz, E Gottlieb, S Heller, UM Kronfeld, AS Laiho, J Mackenzie, PB Neil, ET Simone, J Sugar, R Toussaint, D Van de Water, RS Zhou, R AF Bazavov, A. Bernard, C. Bouchard, C. M. Chang, C. C. DeTar, C. Du, Daping El-Khadra, A. X. Freeland, E. D. Gamiz, E. Gottlieb, Steven Heller, U. M. Kronfeld, A. S. Laiho, J. Mackenzie, P. B. Neil, E. T. Simone, J. Sugar, R. Toussaint, D. Van de Water, R. S. Zhou, Ran CA Fermilab Lattice Collaboration MILC Collaboration TI B-(s)(0)-mixing matrix elements from lattice QCD for the Standard Model SO PHYSICAL REVIEW D LA English DT Article ID YANG-MILLS THEORY; CHANGING NEUTRAL CURRENTS; MINIMAL FLAVOR VIOLATION; CONTINUUM-LIMIT; CP VIOLATION; QUANTUM CHROMODYNAMICS; ANOMALOUS DIMENSIONS; LIFETIME DIFFERENCE; LEADING LOGARITHMS; SUSSKIND FERMIONS AB We calculate-for the first time in three-flavor lattice QCD-the hadronic matrix elements of all five local operators that contribute to neutral B-0- and B-s-meson mixing in and beyond the Standard Model. We present a complete error budget for each matrix element and also provide the full set of correlations among the matrix elements. We also present the corresponding bag parameters and their correlations, as well as specific combinations of the mixing matrix elements that enter the expression for the neutral B-meson width difference. We obtain the most precise determination to date of the SU(3)-breaking ratio xi = 1.206(18)(6), where the second error stems from the omission of charm-sea quarks, while the first encompasses all other uncertainties. The threefold reduction in total uncertainty, relative to the 2013 Flavor Lattice Averaging Group results, tightens the constraint from B mixing on the Cabibbo-Kobayashi-Maskawa (CKM) unitarity triangle. Our calculation employs gauge-field ensembles generated by the MILC Collaboration with four lattice spacings and pion masses close to the physical value. We use the asqtad-improved staggered action for the light-valence quarks and the Fermilab method for the bottom quark. We use heavy-light meson chiral perturbation theory modified to include lattice-spacing effects to extrapolate the five matrix elements to the physical point. We combine our results with experimental measurements of the neutral B-meson oscillation frequencies to determine the CKM matrix elements vertical bar V-td vertical bar = 8.00(34)(8) x 10(-3), vertical bar V-ts vertical bar = 39.0(1.2)(0.4) x 10(-3), and vertical bar V-td/V-ts vertical bar = 0.2052(31)(10), which differ from CKM-unitarity expectations by about 2 sigma. These results and others from flavor-changing-neutral currents point towards an emerging tension between weak processes that are mediated at the loop and tree levels. C1 [Bazavov, A.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA. [Bernard, C.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. [Bouchard, C. M.] Coll William & Mary, Dept Phys, Williamsburg, VA 23185 USA. [Chang, C. C.; El-Khadra, A. X.] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [DeTar, C.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Du, Daping; Laiho, J.] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA. [Freeland, E. D.] Sch Art Inst Chicago, Liberal Arts Dept, Chicago, IL 60603 USA. [Gamiz, E.] Univ Granada, CAFPE, E-18071 Granada, Spain. [Gamiz, E.] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain. [Gottlieb, Steven] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Heller, U. M.] Amer Phys Soc, Ridge, NY 11961 USA. [Kronfeld, A. S.; Mackenzie, P. B.; Simone, J.; Van de Water, R. S.; Zhou, Ran] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Kronfeld, A. S.] Tech Univ Munich, Inst Adv Study, D-85748 Garching, Germany. [Neil, E. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. [Neil, E. T.] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Sugar, R.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93016 USA. [Toussaint, D.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA. [Chang, C. C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bouchard, CM (reprint author), Coll William & Mary, Dept Phys, Williamsburg, VA 23185 USA. EM cmbouchard@wm.edu; axk@illinois.edu; eliz@fnal.gov RI Bouchard, Christopher/N-3723-2016 OI Bouchard, Christopher/0000-0003-1639-7164 FU Office of Science of the U.S. Department of Energy; National Science Foundation's Teragrid/XSEDE Program; U.S. Department of Energy [DE-FG02-91ER40628, DE-FC02-06ER41446, DE-SC0010120, DE-SC0010005, DE-FG02-91ER40661, DE-FG02-13ER42001, DE-FG02-13ER41976]; U. S. National Science Foundation [PHY-1067881, PHY10-034278, PHY14-17805, PHY13-16748]; Fermilab Fellowship in Theoretical Physics; URA Visiting Scholars' program; MICINN (Spain) [FPA2010-16696]; Ramon y Cajal program; Junta de Andalucia (Spain) [FQM-101, FQM-6552]; European Commission (EC) [PCIG10-GA-2011-303781]; German Excellence Initiative; European Union [291763]; European Union's Marie Curie COFUND program; Fermi Research Alliance, LLC [DE-AC02-07CH11359]; U. S. Department of Energy; Department of Energy [DE-SC0012704] FX We thank Sebastien Descotes-Genon for helpful discussions and supplementary information on CKMfitter's results, Enrico Lunghi for providing the global unitarity-triangle fit plot and assisting in calculations of B. -> mu mu observables, and Andrzej Buras, Martin Jung, and Alexander Lenz for helpful discussions and valuable feedback on the manuscript. Computations for this work were carried out with resources provided by the USQCD Collaboration, the National Energy Research Scientific Computing Center and the Argonne Leadership Computing Facility, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science and the Texas Advanced Computing Center, which are funded through the National Science Foundation's Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40628 (C. B.), No. DE-FC02-06ER41446 (C.D.), No. DE-SC0010120 (S. G.), No. DE-SC0010005 (E. T. N.), No. DE-FG02-91ER40661 (S. G. and R. Z.), No. DE-FG02-13ER42001 (C. C. C., D. D., and A. X. K.), and No. DE-FG02-13ER41976 (D. T.); by the U. S. National Science Foundation under Grants No. PHY-1067881 and No. PHY10-034278 (C. D.), No. PHY14-17805 (D. D. and J. L.), and No. PHY13-16748 (R. S.); by the Fermilab Fellowship in Theoretical Physics (C. M. B. and C. C. C.); by the URA Visiting Scholars' program (C. M. B., C. C. C., D. D., and A. X. K.); by the MICINN (Spain) under Grant No. FPA2010-16696 and Ramon y Cajal program (E. G.); by the Junta de Andalucia (Spain) under Grants No. FQM-101 and No. FQM-6552 (E. G.); by the European Commission (EC) under Grant No. PCIG10-GA-2011-303781 (E. G.); by the German Excellence Initiative and the European Union Seventh Framework Program under Grant Agreement No. 291763 as well as the European Union's Marie Curie COFUND program (A. S. K.). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U. S. Department of Energy. Brookhaven National Laboratory is supported by the Department of Energy under Contract No. DE-SC0012704. NR 215 TC 8 Z9 8 U1 3 U2 4 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 28 PY 2016 VL 93 IS 11 AR 113016 DI 10.1103/PhysRevD.93.113016 PG 47 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9MI UT WOS:000378819900004 ER PT J AU Lees, JP Poireau, V Tisserand, V Grauges, E Palano, A Eigen, G Brown, DN Kolomensky, YG Koch, H Schroeder, T Hearty, C Mattison, TS McKenna, JA So, RY Blinov, VE Buzykaev, AR Druzhinin, VP Golube, VB Kravchenko, EA Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Lankford, AJ Gary, JW Long, O Eisner, AM Lockman, WS Vazquez, WP Chao, DS Cheng, CH Echenard, B Flood, KT Hitlin, DG Kim, J Miyashita, TS Ongmongkolkul, P Porter, FC Rohrken, M Huard, Z Meadows, BT Pushpawela, BG Sokoloff, MD Sun, L Smith, JG Wagner, SR Bernard, D Verderi, M Bettoni, D Bozzi, C Calabrese, R Cibinetto, G Fioravanti, E Garzia, I Luppi, E Santoro, V Calcaterra, A de Sangro, R Finocchiaro, G Martellotti, S Patteri, P Peruzzi, IM Piccolo, M Zallo, A Passaggio, S Patrignani, C Bhuyan, B Mallik, U Chen, C Cochran, J Prell, S Ahmed, H Gritsan, AV Arnaud, N Davier, M Le Diberder, F Lutz, AM Wormser, G Lange, DJ Wright, DM Coleman, JP Gabathuler, E Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Cowan, G Banerjee, S Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Griessinger, K Hafner, A Schubert, KR Barlow, RJ Lafferty, GD Cenci, R Jawahery, A Roberts, DA Cowan, R Cheaib, R Robertson, SH Dey, B Neri, N Palombo, F Cremaldi, L Godang, R Summers, DJ Taras, P De Nardo, G Sciacca, C Raven, G Jessop, CP LoSecco, JM Honscheid, K Kass, R Gaz, A Margoni, M Posocco, M Rotondo, M Simi, G Simonetto, F Stroili, R Akar, S Ben-Haim, E Bomben, M Bonneaud, GR Calderini, G Chauveau, J Marchiori, G Ocariz, J Biasini, M Manoni, E Rossi, A Batignani, G Bettarini, S Carpinelli, M Casarosa, G Chrzaszcz, M Forti, F Giorgi, MA Lusiani, A Oberhof, B Paoloni, E Rama, M Rizzo, G Walsh, JJ Smith, AJS Anulli, F Faccini, R Ferrarotto, F Ferroni, F Pilloni, A Piredda, G Bunger, C Dittrich, S Grunberg, O Hess, M Leddig, T Voss, C Waldi, R Adye, T Wilson, FF Emery, S Vasseur, G Aston, D Cartaro, C Convery, MR Dorfan, J Dunwoodie, W Ebert, M Field, RC Fulsom, BG Graham, MT Hast, C Innes, WR Kim, P Leith, DWGS Luitz, S Luth, V MacFarlane, DB Muller, DR Neal, H Ratcliff, BN Roodman, A Sullivan, MK Va'vra, J Wisniewski, WJ Purohit, MV Wilson, JR Randle-Conde, A Sekula, SJ Bellis, M Burchat, PR Puccio, EMT Alam, MS Ernst, JA Gorodeisky, R Guttman, N Peimer, DR Soffer, A Spanier, SM Ritchie, JL Schwitters, RF Izen, JM Lou, XC Bianchi, F De Mori, F Filippi, A Gamba, D Lanceri, L Vitale, L Martinez-Vidal, F Oyanguren, A Albert, J Beaulieu, A Bernlochner, FU King, GJ Kowalewski, R Lueck, T Nugent, IM Roney, JM Tasneem, N Gershon, TJ Harrison, PF Latham, TE Prepost, R Wu, SL AF Lees, J. P. Poireau, V. Tisserand, V. Grauges, E. Palano, A. Eigen, G. Brown, D. N. Kolomensky, Yu. G. Koch, H. Schroeder, T. Hearty, C. Mattison, T. S. McKenna, J. A. So, R. Y. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golube, V. B. Kravchenko, E. A. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Lankford, A. J. Gary, J. W. Long, O. Eisner, A. M. Lockman, W. S. Vazquez, W. Panduro Chao, D. S. Cheng, C. H. Echenard, B. Flood, K. T. Hitlin, D. G. Kim, J. Miyashita, T. S. Ongmongkolkul, P. Porter, F. C. Rohrken, M. Huard, Z. Meadows, B. T. Pushpawela, B. G. Sokoloff, M. D. Sun, L. Smith, J. G. Wagner, S. R. Bernard, D. Verderi, M. Bettoni, D. Bozzi, C. Calabrese, R. Cibinetto, G. Fioravanti, E. Garzia, I. Luppi, E. Santoro, V. Calcaterra, A. de Sangro, R. Finocchiaro, G. Martellotti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Zallo, A. Passaggio, S. Patrignani, C. Bhuyan, B. Mallik, U. Chen, C. Cochran, J. Prell, S. Ahmed, H. Gritsan, A. V. Arnaud, N. Davier, M. Le Diberder, F. Lutz, A. M. Wormser, G. Lange, D. J. Wright, D. M. Coleman, J. P. Gabathuler, E. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Cowan, G. Banerjee, Sw. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Griessinger, K. Hafner, A. Schubert, K. R. Barlow, R. J. Lafferty, G. D. Cenci, R. Jawahery, A. Roberts, D. A. Cowan, R. Cheaib, R. Robertson, S. H. Dey, B. Neri, N. Palombo, F. Cremaldi, L. Godang, R. Summers, D. J. Taras, P. De Nardo, G. Sciacca, C. Raven, G. Jessop, C. P. LoSecco, J. M. Honscheid, K. Kass, R. Gaz, A. Margoni, M. Posocco, M. Rotondo, M. Simi, G. Simonetto, F. Stroili, R. Akar, S. Ben-Haim, E. Bomben, M. Bonneaud, G. R. Calderini, G. Chauveau, J. Marchiori, G. Ocariz, J. Biasini, M. Manoni, E. Rossi, A. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Chrzaszcz, M. Forti, F. Giorgi, M. A. Lusiani, A. Oberhof, B. Paoloni, E. Rama, M. Rizzo, G. Walsh, J. J. Smith, A. J. S. Anulli, F. Faccini, R. Ferrarotto, F. Ferroni, F. Pilloni, A. Piredda, G. Buenger, C. Dittrich, S. Gruenberg, O. Hess, M. Leddig, T. Voss, C. Waldi, R. Adye, T. Wilson, F. F. Emery, S. Vasseur, G. Aston, D. Cartaro, C. Convery, M. R. Dorfan, J. Dunwoodie, W. Ebert, M. Field, R. C. Fulsom, B. G. Graham, M. T. Hast, C. Innes, W. R. Kim, P. Leith, D. W. G. S. Luitz, S. Luth, V. MacFarlane, D. B. Muller, D. R. Neal, H. Ratcliff, B. N. Roodman, A. Sullivan, M. K. Va'vra, J. Wisniewski, W. J. Purohit, M. V. Wilson, J. R. Randle-Conde, A. Sekula, S. J. Bellis, M. Burchat, P. R. 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. Schwitters, R. F. Izen, J. M. Lou, X. C. Bianchi, F. De Mori, F. Filippi, A. Gamba, D. Lanceri, L. Vitale, L. Martinez-Vidal, F. Oyanguren, A. Albert, J. Beaulieu, A. Bernlochner, F. U. King, G. J. Kowalewski, R. Lueck, T. Nugent, I. M. Roney, J. M. Tasneem, N. Gershon, T. J. Harrison, P. F. Latham, T. E. Prepost, R. Wu, S. L. CA BaBaR Collaboration TI Measurement of the neutral D meson mixing parameters in a time-dependent amplitude analysis of the D-0 -> pi(+)pi(-)pi(0) decay SO PHYSICAL REVIEW D LA English DT Article ID BABAR DETECTOR; ISOBAR MODEL; FORMALISM AB We perform the first measurement on the D-0 - (D) over bar (0) mixing parameters using a time-dependent amplitude analysis of the decay D-0 -> pi(+)pi(-)pi(0). The data were recorded with the BABAR detector at center-of-mass energies at and near the Upsilon(4S) resonance, and correspond to an integrated luminosity of approximately 468.1 fb(-1). The neutral D meson candidates are selected from D*(2010)(+) -> D-0 pi(+)(s) decays where the flavor at the production is identified by the charge of the low-momentum pion, pi(+)(s). The measured mixing parameters are x = (1.5 +/- 1.2 +/- 0.6)% and y = (0.2 +/- 0.9 +/- 0.5)%, where the quoted uncertainties are statistical and systematic, respectively. C1 [Lees, J. P.; Poireau, V.; Tisserand, V.; Beaulieu, A.] Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. [Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Palano, A.] Univ Bari, Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Palano, A.] Univ Bari, Dipartmento Fis, Via Amendola 173, I-70126 Bari, Italy. [Eigen, G.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Brown, D. N.; Kolomensky, Yu. G.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Brown, D. N.; Kolomensky, Yu. G.] Univ Calif Berkeley, Berkeley, CA 94720 USA. Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany. [Hearty, C.; Mattison, T. S.; McKenna, J. A.; So, R. Y.] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada. [Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golube, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia. [Blinov, V. E.; Druzhinin, V. P.; Golube, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu.] Novosibirsk State Univ, Novosibirsk 630090, Russia. [Blinov, V. E.; Onuchin, A. P.] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia. [Lankford, A. J.] Univ Calif Irvine, Irvine, CA 92697 USA. [Gary, J. W.; Long, O.] Univ Calif Riverside, Riverside, CA 92521 USA. [Eisner, A. M.; Lockman, W. S.; Vazquez, W. Panduro] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA. [Chao, D. S.; Cheng, C. H.; Echenard, B.; Flood, K. T.; Hitlin, D. G.; Kim, J.; Miyashita, T. S.; Ongmongkolkul, P.; Porter, F. C.; Rohrken, M.] CALTECH, Pasadena, CA 91125 USA. [Huard, Z.; Meadows, B. T.; Pushpawela, B. G.; Sokoloff, M. D.; Sun, L.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Smith, J. G.; Wagner, S. R.] Univ Colorado, Boulder, CO 80309 USA. 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A.; Oberhof, B.; Paoloni, E.; Rizzo, G.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy. [Lusiani, A.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Smith, A. J. S.] Princeton Univ, Princeton, NJ 08544 USA. [Anulli, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Pilloni, A.; Piredda, G.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy. [Faccini, R.; Ferroni, F.; Pilloni, A.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Buenger, C.; Dittrich, S.; Gruenberg, O.; Hess, M.; Leddig, T.; Voss, C.; Waldi, R.] Univ Rostock, D-18051 Rostock, Germany. [Adye, T.; Wilson, F. F.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Emery, S.; Vasseur, G.] CEA, Irfu, SPP, Ctr Saclay, F-91191 Gif Sur Yvette, France. [Aston, D.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dunwoodie, W.; Ebert, M.; Field, R. C.; Fulsom, B. G.; Graham, M. T.; Hast, C.; Innes, W. R.; Kim, P.; Leith, D. W. G. S.; Luitz, S.; Luth, V.; MacFarlane, D. B.; Muller, D. R.; Neal, H.; Ratcliff, B. N.; Roodman, A.; Sullivan, M. K.; Va'vra, J.; Wisniewski, W. J.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA. [Purohit, M. V.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Randle-Conde, A.; Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA. [Bellis, M.; Burchat, P. R.; Puccio, E. M. T.] Stanford Univ, Stanford, CA 94305 USA. [Alam, M. S.; Ernst, J. A.] SUNY Albany, Albany, NY 12222 USA. [Gorodeisky, R.; Guttman, N.; Peimer, D. R.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Ritchie, J. L.; Schwitters, R. F.] Univ Texas Austin, Austin, TX 78712 USA. [Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; De Mori, F.; Filippi, A.; Gamba, D.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; De Mori, F.; Gamba, D.] Univ Turin, Dipartimento Fis, I-10125 Turin, Italy. [Lanceri, L.; Vitale, L.] Univ Trieste, Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Lanceri, L.; Vitale, L.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy. [Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Beaulieu, A.; Bernlochner, F. U.; King, G. J.; Kowalewski, R.; Lueck, T.; Nugent, I. M.; Roney, J. M.; Tasneem, N.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Prepost, R.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Sun, L.] Wuhan Univ, Wuhan 43072, Peoples R China. [Patrignani, C.] Univ Bologna, I-47921 Rimini, Italy. [Patrignani, C.] Ist Nazl Fis Nucl, Sez Bologna, I-47921 Rimini, Italy. [Barlow, R. J.] Univ Huddersfield, Huddersfield HD1 3DH, W Yorkshire, England. [Godang, R.] Univ S Alabama, Mobile, AL 36688 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RI Kravchenko, Evgeniy/F-5457-2015; Di Lodovico, Francesca/L-9109-2016; bettarini, stefano/M-2502-2016; Patrignani, Claudia/C-5223-2009; Calcaterra, Alessandro/P-5260-2015; OI Di Lodovico, Francesca/0000-0003-3952-2175; Patrignani, Claudia/0000-0002-5882-1747; Calcaterra, Alessandro/0000-0003-2670-4826; Bettarini, Stefano/0000-0001-7742-2998 FU SLAC; U.S. Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; 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); Binational Science Foundation (U.S.-Israel); Marie-Curie IEF program (European Union); A.P. Sloan Foundation (U.S.) FX We are grateful for the extraordinary contributions of our PEP-II2 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), the Science and Technology Facilities Council (United Kingdom), and the Binational Science Foundation (U.S.-Israel). Individuals have received support from the Marie-Curie IEF program (European Union) and the A.P. Sloan Foundation (U.S.). NR 25 TC 0 Z9 0 U1 3 U2 6 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 28 PY 2016 VL 93 IS 11 AR 112014 DI 10.1103/PhysRevD.93.112014 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP9MI UT WOS:000378819900001 ER PT J AU Myllys, M Ruokolainen, V Aho, V Smith, EA Hakanen, S Peri, P Salvetti, A Timonen, J Hukkanen, V Larabell, CA Vihinen-Ranta, M AF Myllys, Markko Ruokolainen, Visa Aho, Vesa Smith, Elizabeth A. Hakanen, Satu Peri, Piritta Salvetti, Anna Timonen, Jussi Hukkanen, Veijo Larabell, Carolyn A. Vihinen-Ranta, Maija TI Herpes simplex virus 1 induces egress channels through marginalized host chromatin SO SCIENTIFIC REPORTS LA English DT Article ID X-RAY TOMOGRAPHY; NUCLEAR-PORE COMPLEX; REPLICATION COMPARTMENTS; VIRAL-INFECTION; CELLS; MICROSCOPY; CAPSIDS; RECONSTRUCTION; ORGANIZATION; ARCHITECTURE AB Lytic infection with herpes simplex virus type 1 (HSV-1) induces profound modification of the cell nucleus including formation of a viral replication compartment and chromatin marginalization into the nuclear periphery. We used three-dimensional soft X-ray tomography, combined with cryogenic fluorescence, confocal and electron microscopy, to analyse the transformation of peripheral chromatin during HSV-1 infection. Our data showed an increased presence of low-density gaps in the marginalized chromatin at late infection. Advanced data analysis indicated the formation of virus-nucleocapsid-sized (or wider) channels extending through the compacted chromatin of the host. Importantly, confocal and electron microscopy analysis showed that these gaps frequently contained viral nucleocapsids. These results demonstrated that HSV-1 infection induces the formation of channels penetrating the compacted layer of cellular chromatin and allowing for the passage of progeny viruses to the nuclear envelope, their site of nuclear egress. C1 [Myllys, Markko; Aho, Vesa; Timonen, Jussi] Univ Jyvaskyla, Dept Phys, FI-40500 Jyvaskyla, Finland. [Myllys, Markko; Ruokolainen, Visa; Aho, Vesa; Hakanen, Satu; Timonen, Jussi; Vihinen-Ranta, Maija] Univ Jyvaskyla, Nanosci Ctr, FI-40500 Jyvaskyla, Finland. [Ruokolainen, Visa; Hakanen, Satu; Vihinen-Ranta, Maija] Univ Jyvaskyla, Dept Biol & Environm Sci, FI-40500 Jyvaskyla, Finland. [Smith, Elizabeth A.; Larabell, Carolyn A.] Univ Calif San Francisco, Dept Anat, San Francisco, CA 94158 USA. [Smith, Elizabeth A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Peri, Piritta; Hukkanen, Veijo; Larabell, Carolyn A.] Univ Turku, Turku, Finland. [Salvetti, Anna] CNRS, UMR5308, INSERM, Int Ctr Res Infectiol CIRI,U1111, F-69007 Lyon, France. [Salvetti, Anna] Ecole Normale Super Lyon, F-69007 Lyon, France. [Salvetti, Anna] Univ Lyon 1, F-69007 Lyon, France. [Salvetti, Anna] Univ Lyon, LabEx Ecofect, F-69007 Lyon, France. [Timonen, Jussi] ITMO Univ, Kronverkskii Ave 49, St Petersburg 197101, Russia. RP Vihinen-Ranta, M (reprint author), Univ Jyvaskyla, Nanosci Ctr, FI-40500 Jyvaskyla, Finland.; Vihinen-Ranta, M (reprint author), Univ Jyvaskyla, Dept Biol & Environm Sci, FI-40500 Jyvaskyla, Finland. EM maija.vihinen-ranta@jyu.fi RI Salvetti, Anna/I-6204-2016 FU INSERM; CNRS; Universite Claude Bernard Lyon-1; Ecole Normale Superieure de Lyon; Jane and Aatos Erkko Foundation; National Institute of General Medical Sciences of the National Institute of Health [P41 GM103445]; US Department of Energy, Biological and Environmental Research [DE-AC02-05CH11231]; Academy of Finland [138388, 259725] FX We thank the staff of Advanced Light Source (Lawrence Berkeley National Laboratory, Berkeley, CA) staff for providing a safe, reliable source of photons used for imaging the cells in the present study. The SXT research was conducted at the National Center for X-ray Tomography (NCXT), and first-class experimental support by Rosanne Boudreau is gratefully acknowledged. We thank Liisa Lund, Arja Strandell, Mervi Lindman and Mervi Laanti for technical assistance and Electron Microscopy Unit of the Institute of Biotechnology, University of Helsinki, for EM sample preparation. We are grateful to Klaus Hedman for comments on the manuscript. This work was supported by INSERM, CNRS, Universite Claude Bernard Lyon-1 and Ecole Normale Superieure de Lyon (AS). It was financed by the Jane and Aatos Erkko Foundation (JT, MVR), the National Institute of General Medical Sciences of the National Institute of Health, under the award number P41 GM103445, and the US Department of Energy, Biological and Environmental Research (DE-AC02-05CH11231, CAL) and the Academy of Finland, under the award numbers 138388 (MVR) and 259725 (VH). NR 54 TC 2 Z9 2 U1 4 U2 7 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 2016 VL 6 AR 28844 DI 10.1038/srep28844 PG 9 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP8CB UT WOS:000378724400001 PM 27349677 ER PT J AU Clarkson, CM McCoy, JD Kropka, JM AF Clarkson, Caitlyn M. McCoy, John D. Kropka, Jamie M. TI Enthalpy recovery and its relation to shear response in an amine cured DGEBA epoxy SO POLYMER LA English DT Article DE Enthalpy relaxation; Shear relaxation; Epoxy ID GLASS-TRANSITION TEMPERATURE; FICTIVE TEMPERATURE; POLY(METHYL METHACRYLATE); STRUCTURAL RECOVERY; POLYMER GLASSES; COOLING RATE; PARAMETER-X; RELAXATION; RESIN; BEHAVIOR AB A description of enthalpy recovery for an amine-cured, digylcidyl ether of bisphenol A (DGEBA) epoxy (Epon 828/Jeffamine T403) was acquired through a series of experiments targeting the effects of the individual parameters: cooling rate, heating rate, aging temperature, and aging time. From these experiments, the peak temperature, T-p, and fictive temperature, T-f, were tracked as measures of the extent of structural relaxation. The KAHR formalism provides a standard for comparison to similar epoxies and was parametrized using the peak shift method. The resulting parameterization was then used to assess the relation between volumetric and shear relaxation. In particular, the KAHR model was used to predict volumetric relaxation time-temperature shift factors that are directly compared to measured timetemperature shift factors in shear. This unique methodology to assess equivalence between volumetric and shear relaxation shift factors further establishes the basis for this key assumption of continuum constitutive models based on rheological simplicity. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Clarkson, Caitlyn M.; McCoy, John D.] New Mexico Inst Min & Technol, Dept Mat Engn, Socorro, NM 87801 USA. [Kropka, Jamie M.] Sandia Natl Labs, Ctr Mat Sci & Engn, POB 5800, Albuquerque, NM 87185 USA. RP McCoy, JD (reprint author), New Mexico Inst Min & Technol, Dept Mat Engn, Socorro, NM 87801 USA. EM mccoy@nmt.edu RI McCoy, John/B-3846-2010 OI McCoy, John/0000-0001-5404-1404 FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] 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-AC04-94AL85000. NR 40 TC 0 Z9 0 U1 4 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0032-3861 EI 1873-2291 J9 POLYMER JI Polymer PD JUN 28 PY 2016 VL 94 BP 19 EP 30 DI 10.1016/j.polymer.2016.03.095 PG 12 WC Polymer Science SC Polymer Science GA DM0WC UT WOS:000376065500004 ER PT J AU Blancon, JC Nie, WY Neukirch, AJ Gupta, G Tretiak, S Cognet, L Mohite, AD Crochet, JJ AF Blancon, Jean-Christophe Nie, Wanyi Neukirch, Amanda J. Gupta, Gautam Tretiak, Sergei Cognet, Laurent Mohite, Aditya D. Crochet, Jared J. TI The Effects of Electronic Impurities and Electron-Hole Recombination Dynamics on Large-Grain Organic-Inorganic Perovskite Photovoltaic Efficiencies SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article DE carrier dynamics; electronic impurities; organic-inorganic perovskite; photovoltaic ID LEAD HALIDE PEROVSKITES; SOLAR-CELL APPLICATIONS; SOLID-STATE PHYSICS; CHARGE-CARRIERS; IODIDE PEROVSKITE; RADIATIVE RECOMBINATION; HYBRID PEROVSKITES; EFFECTIVE MASSES; TRAP STATES; CH3NH3PBI3 AB Hybrid organic-inorganic perovskites have attracted considerable attention after promising developments in energy harvesting and other optoelectronic applications. However, further optimization will require a deeper understanding of the intrinsic photophysics of materials with relevant structural characteristics. Here, the dynamics of photoexcited charge carriers in large-area grain organic-inorganic perovskite thin films is investigated via confocal time-resolved photoluminescence spectroscopy. It is found that the bimolecular recombination of free charges is the dominant decay mechanism at excitation densities relevant for photovoltaic applications. Bimolecular coefficients are found to be on the order of 10(-9) cm(3) s(-1), comparable to typical direct-gap semiconductors, yet significantly smaller than theoretically expected. It is also demonstrated that there is no degradation in carrier transport in these thin films due to electronic impurities. Suppressed electron-hole recombination and transport that is not limited by deep level defects provide a microscopic model for the superior performance of large-area grain hybrid perovskites for photovoltaic applications. C1 [Blancon, Jean-Christophe; Crochet, Jared J.] Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA. [Nie, Wanyi; Gupta, Gautam; Mohite, Aditya D.] Los Alamos Natl Lab, Mat Synth & Integrated Devices, Los Alamos, NM 87545 USA. [Neukirch, Amanda J.; Tretiak, Sergei] Los Alamos Natl Lab, Theoret Chem & Mol Phys, Los Alamos, NM 87545 USA. [Cognet, Laurent] Univ Bordeaux, Lab Photon Numer & Nanosci, UMR 5298, F-33400 Talence, France. [Cognet, Laurent] Inst Opt, F-33400 Talence, France. [Cognet, Laurent] CNRS, UMR 5298, LP2N, F-33400 Talence, France. RP Crochet, JJ (reprint author), Los Alamos Natl Lab, Phys Chem & Appl Spect, Los Alamos, NM 87545 USA. EM jcrochet@lanl.gov OI Blancon, Jean-Christophe/0000-0002-3833-5792; Crochet, Jared/0000-0002-9570-2173 FU Los Alamos National Laboratory LDRD program; "INCa-Canceropole GSO" FX This work was supported the Los Alamos National Laboratory LDRD program. L.C. acknowledges additional support from "INCa-Canceropole GSO." The authors also acknowledge the LANL Institutional Computing (IC) Program for providing computational resources. The authors declare no competing financial interests. NR 66 TC 5 Z9 5 U1 13 U2 13 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1616-301X EI 1616-3028 J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD JUN 27 PY 2016 VL 26 IS 24 BP 4283 EP 4292 DI 10.1002/adfm.201505324 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 DR2KS UT WOS:000379734000005 ER PT J AU Balaguru, K Leung, LR Lu, J Foltz, GR AF Balaguru, Karthik Leung, L. Ruby Lu, Jian Foltz, Gregory R. TI Ameridional dipole in premonsoon Bay of Bengal tropical cyclone activity induced by ENSO SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID SEA-SURFACE TEMPERATURE; TROPOSPHERIC TEMPERATURE; INDIAN MONSOON; INTENSITY; INTENSIFICATION; SIMULATION; DYNAMICS; MYANMAR AB Analysis of Bay of Bengal tropical cyclone (TC) track data for the months of May-June during 1979-2014 reveals a meridional dipole in TC intensification: TC intensification rates increased significantly in the northern region and decreased in the southern region. The dipole is consistent with changes in the large-scale TC environment estimated using the Genesis Potential Index (GPI) for the same period. While an increase in lower troposphere cyclonic vorticity and midtroposphere humidity in the northern Bay of Bengal made the environment more favorable for TC intensification, enhanced vertical wind shear in the southern Bay of Bengal tended to reduce TC development. These environmental changes were associated with a strengthening of the monsoon circulation for the months of May-June, driven by a La Nina-like shift in tropical Pacific SSTs and associated tropical wave dynamics. Finally, analysis of a suite of climate models from the Coupled Model Intercomparison Project Phase 5 archive shows that most models correctly reproduce the link between ENSO and premonsoon Bay of Bengal TC activity at interannual timescales, demonstrating the robustness of our main conclusions. C1 [Balaguru, Karthik] Pacific Northwest Natl Lab, Marine Sci Lab, Seattle, WA 98109 USA. [Leung, L. Ruby; Lu, Jian] Pacific Northwest Natl Lab, Atmospher Sci & Global Change, Richland, WA 99352 USA. [Foltz, Gregory R.] Atlantic Oceanog & Meteorol Lab, Phys Oceanog Div, Miami, FL USA. RP Balaguru, K (reprint author), Pacific Northwest Natl Lab, Marine Sci Lab, Seattle, WA 98109 USA. EM Karthik.Balaguru@pnnl.gov RI Foltz, Gregory/B-8710-2011 OI Foltz, Gregory/0000-0003-0050-042X FU U.S. Department of Energy (DOE) Office of Science Biological and Environmental Research; DOE [DE-AC05-76RL01830] FX This research is based on work supported by the U.S. Department of Energy (DOE) Office of Science Biological and Environmental Research as part of the Regional and Global Climate Modeling program. The Pacific Northwest National Laboratory is operated for DOE by Battelle Memorial Institute under contract DE-AC05-76RL01830. G.F. was funded by base funds to NOAA/AOML's Physical Oceanography Division. All data used to produce the results of this paper are freely available from the URLs supplied in section 2. NR 47 TC 0 Z9 0 U1 3 U2 3 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 2016 VL 121 IS 12 BP 6954 EP 6968 DI 10.1002/2016JD024936 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DT6YU UT WOS:000381631800016 ER PT J AU Xie, XN Wang, HL Liu, XD Li, JD Wang, ZS Liu, YG AF Xie, Xiaoning Wang, Hongli Liu, Xiaodong Li, Jiandong Wang, Zhaosheng Liu, Yangang TI Distinct effects of anthropogenic aerosols on the East Asian summermonsoon between multidecadal strong and weakmonsoon stages SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID COMMUNITY ATMOSPHERE MODEL; SEA-SURFACE TEMPERATURE; BLACK CARBON AEROSOLS; SUMMER MONSOON; CLOUD MICROPHYSICS; PART I; CLIMATE; SIMULATIONS; CHINA; PRECIPITATION AB Because industrial emissions of anthropogenic aerosols over East Asia have greatly increased in recent decades, the interactions between atmospheric aerosols and the East Asian summer monsoon (EASM) have attracted enormous attention. To further understand the aerosol-EASM interaction, we investigate the impacts of anthropogenic aerosols on the EASM during the multidecadal strong (1950-1977) and weak (1978-2000) EASM stages using the Community Atmospheric Model 5.1. Numerical experiments are conducted for the whole period, including the two different EASM stages, with present day (PD, year 2000) and preindustrial (PI, year 1850) aerosol emissions, as well as the observed time-varying aerosol emissions. A comparison of the results from PD and PI shows that, with the increase in anthropogenic aerosols, the large- scale EASM intensity is weakened to a greater degree (-9.8%) during the weak EASM stage compared with the strong EASM stage (-4.4%). The increased anthropogenic aerosols also result in a significant reduction in precipitation over North China during the weak EASM stage, as opposed to a statistically insignificant change during the strong EASM stage. Because of greater aerosol loading and the larger sensitivity of the climate system during weak EASM stages, the aerosol effects are more significant during these EASM stages. These results suggest that anthropogenic aerosols from the same aerosol emissions have distinct effects on the EASM and the associated precipitation between the multidecadal weak and strong EASM stages. C1 [Xie, Xiaoning; Liu, Xiaodong; Wang, Zhaosheng] Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian, Peoples R China. [Wang, Hongli] Shaanxi Radio & TV Univ, Xian, Peoples R China. [Liu, Xiaodong] Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Environm Sci & Technol, Xian, Peoples R China. [Li, Jiandong] Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing, Peoples R China. [Liu, Yangang] Brookhaven Natl Lab, Atmospher Sci Div, Upton, NY 11973 USA. RP Xie, XN (reprint author), Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian, Peoples R China. EM xnxie@ieecas.cn RI Liu, Xiaodong/E-9512-2011 OI Liu, Xiaodong/0000-0003-0355-5610 FU National Basic Research Program of China [2011CB403406]; National Natural Science Foundation of China [41290255, 41105071]; CAS [XDA05110101]; U.S. Department of Energy FX We thank three anonymous reviewers for their constructive comments and suggestions, which helped us improve the manuscript. The NCEP/NCAR reanalysis data and GPCP Version 2.2 data were provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their website at http://www.esrl.noaa.gov/psd/, and the ERA40 reanalysis data were obtained from the European Centre (http://apps.ecmwf.int/datasets/) in our study. This work was jointly supported by the National Basic Research Program of China (2011CB403406), the National Natural Science Foundation of China (41290255 and 41105071) and the CAS Strategic Priority Research Program (XDA05110101). Y. Liu is supported by the U.S. Department of Energy's Atmospheric System Research (ASR) program. NR 45 TC 2 Z9 2 U1 5 U2 6 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 2016 VL 121 IS 12 BP 7026 EP 7040 DI 10.1002/2015JD024228 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DT6YU UT WOS:000381631800020 ER PT J AU Koffi, B Schulz, M Breon, FM Dentener, F Steensen, BM Griesfeller, J Winker, D Balkanski, Y Bauer, SE Bellouin, N Berntsen, T Bian, HS Chin, M Diehl, T Easter, R Ghan, S Hauglustaine, DA Iversen, T Kirkevag, A Liu, XH Lohmann, U Myhre, G Rasch, P Seland, O Skeie, RB Steenrod, SD Stier, P Tackett, J Takemura, T Tsigaridis, K Vuolo, MR Yoon, J Zhang, K AF Koffi, Brigitte Schulz, Michael Breon, Francois-Marie Dentener, Frank Steensen, Birthe Marie Griesfeller, Jan Winker, David Balkanski, Yves Bauer, Susanne E. Bellouin, Nicolas Berntsen, Terje Bian, Huisheng Chin, Mian Diehl, Thomas Easter, Richard Ghan, Steven Hauglustaine, Didier A. Iversen, Trond Kirkevag, Alf Liu, Xiaohong Lohmann, Ulrike Myhre, Gunnar Rasch, Phil Seland, Oyvind Skeie, Ragnhild B. Steenrod, Stephen D. Stier, Philip Tackett, Jason Takemura, Toshihiko Tsigaridis, Kostas Vuolo, Maria Raffaella Yoon, Jinho Zhang, Kai TI Evaluation of the aerosol vertical distribution in global aerosol models through comparison against CALIOP measurements: AeroCom phase II results SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID BIOMASS BURNING EMISSIONS; SPECTRAL-RESOLUTION LIDAR; BLACK CARBON; OPTICAL-PROPERTIES; INTERANNUAL VARIABILITY; AIRCRAFT OBSERVATIONS; CLIMATE INTERACTIONS; INITIAL ASSESSMENT; CALIPSO LIDAR; TRANSPORT AB The ability of 11 models in simulating the aerosol vertical distribution from regional to global scales, as part of the second phase of the AeroCom model intercomparison initiative (AeroCom II), is assessed and compared to results of the first phase. The evaluation is performed using a global monthly gridded data set of aerosol extinction profiles built for this purpose from the CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization) Layer Product 3.01. Results over 12 subcontinental regions show that five models improved, whereas three degraded in reproducing the interregional variability in Z(alpha 0-6 km), the mean extinction height diagnostic, as computed from the CALIOP aerosol profiles over the 0-6 km altitude range for each studied region and season. While the models' performance remains highly variable, the simulation of the timing of the Z(alpha 0-6 km) peak season has also improved for all but two models from AeroCom Phase I to Phase II. The biases in Z(alpha 0-6 km) are smaller in all regions except Central Atlantic, East Asia, and North and South Africa. Most of the models now underestimate Z(alpha 0-6 km) over land, notably in the dust and biomass burning regions in Asia and Africa. At global scale, the AeroCom II models better reproduce the Z(alpha 0-6 km) latitudinal variability over ocean than over land. Hypotheses for the performance and evolution of the individual models and for the intermodel diversity are discussed. We also provide an analysis of the CALIOP limitations and uncertainties contributing to the differences between the simulations and observations. C1 [Koffi, Brigitte; Dentener, Frank; Diehl, Thomas] Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Ispra, Italy. [Schulz, Michael; Steensen, Birthe Marie; Griesfeller, Jan; Iversen, Trond; Kirkevag, Alf; Seland, Oyvind] Norwegian Meteorol Inst, Oslo, Norway. [Breon, Francois-Marie; Balkanski, Yves; Hauglustaine, Didier A.; Vuolo, Maria Raffaella] Lab Sci Climat & Environm, Gif Sur Yvette, France. [Winker, David] NASA, Langley Res Ctr, MS-475, Hampton, VA 23665 USA. [Bauer, Susanne E.; Tsigaridis, Kostas] Columbia Univ, Ctr Climate Syst Res, New York, NY USA. [Bauer, Susanne E.; Tsigaridis, Kostas] NASA, Goddard Inst Space Studies, New York, NY 10025 USA. [Bellouin, Nicolas] Univ Reading, Dept Meteorol, Reading, Berks, England. [Berntsen, Terje] Univ Oslo, Dept Geosci, Oslo, Norway. [Berntsen, Terje; Myhre, Gunnar; Skeie, Ragnhild B.] Ctr Int Climate & Environm Res Oslo CICERO, Oslo, Norway. [Bian, Huisheng; Chin, Mian; Rasch, Phil; Steenrod, Stephen D.] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. [Bian, Huisheng] Univ Maryland Baltimore Cty, Joint Ctr Earth Syst Technol, Baltimore Country, MD USA. [Easter, Richard; Ghan, Steven; Liu, Xiaohong; Yoon, Jinho; Zhang, Kai] Pacific NW Natl Lab, Richland, WA 99352 USA. [Iversen, Trond] Univ Oslo, Dept Geosci, Oslo, Norway. [Liu, Xiaohong] Univ Wyoming, Laramie, WY 82071 USA. [Lohmann, Ulrike] ETH Zentrum, Zurich, Switzerland. [Stier, Philip] Univ Oxford, Dept Phys, Oxford, England. [Tackett, Jason] Sci Syst & Applicat Inc, Hampton, VA USA. [Takemura, Toshihiko] Kyushu Univ, Inst Appl Mech, Fukuoka, Japan. [Vuolo, Maria Raffaella] Natl Inst Agron Res, Thiverval Grignon, France. [Yoon, Jinho] Gwangju Inst Sci & Technol, Gwangju, South Korea. [Zhang, Kai] Max Planck Inst Meteorol, Hamburg, Germany. RP Koffi, B (reprint author), Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Ispra, Italy. EM brigitte.koffi-lefeivre@jrc.ec.europa.eu RI Ghan, Steven/H-4301-2011; Stier, Philip/B-2258-2008; Myhre, Gunnar/A-3598-2008; Kyushu, RIAM/F-4018-2015; Zhang, Kai/F-8415-2010; Takemura, Toshihiko/C-2822-2009; Chin, Mian/J-8354-2012; YOON, JIN-HO/A-1672-2009; Liu, Xiaohong/E-9304-2011 OI Balkanski, Yves/0000-0001-8241-2858; Ghan, Steven/0000-0001-8355-8699; Skeie, Ragnhild/0000-0003-1246-4446; Stier, Philip/0000-0002-1191-0128; Myhre, Gunnar/0000-0002-4309-476X; Zhang, Kai/0000-0003-0457-6368; Takemura, Toshihiko/0000-0002-2859-6067; YOON, JIN-HO/0000-0002-4939-8078; Liu, Xiaohong/0000-0002-3994-5955 FU European Commission [070307/ENV/2012/636596/C3]; Research Council of Norway [207711/E10, 229771]; CRAICC; EU; Norwegian Space Center; US Department of Energy, Office of Science; DOE [DE-AC06-76RLO 1830]; NASA MAP program Modeling, Analysis, and Prediction Climate Variability and Change [NNH08ZDA001N-MAP]; Research Council of Norway FX This work was supported by the European Commission under the project IS-ENES (Infrastructure for the European Network for Earth System Modelling) and the Administrative Arrangement AMITO (070307/ENV/2012/636596/C3). We thank NASA teams and the ICARE Data and Services Center for providing access to the CALIOP CNES/NASA data used in this study and for providing continuous computing access and support. We are also very grateful to three reviewers for their valuable comments and suggestions that allowed improving the quality of the manuscript and reinforcing some of our findings. T. Iversen, A. Kirkevag, and O. Seland (and B. Koffi) were (also) supported by the Research Council of Norway through the EarthClim (207711/E10), EVA (229771), and NOTUR/NorStore projects, CRAICC, and through the EU projects PEGASOS and ACCESS. M. Schulz and A. Kirkevag also received funding from the Norwegian Space Center through the PM-VRAE and PM-MACS projects. S. Ghan, R. Easter, P. Rasch, J. Yoon and K. Zhang were funded by the US Department of Energy, Office of Science, Scientific Discovery through Advanced Computing (SciDAC) program. The Pacific Northwest National Laboratory is operated for DOE by Battelle Memorial Institute under contract DE-AC06-76RLO 1830. S.E. Bauer and K. Tsigaridis acknowledge resources supporting this work by the NASA High-End Computing (HEC) Program through the NASA Center for Climate Simulation (NCCS) at Goddard Space Flight Center and support by the NASA MAP program Modeling, Analysis, and Prediction Climate Variability and Change (NNH08ZDA001N-MAP). M. Schulz, Jan Griesfeller, R.B. Skeie, T. Berntsen and G. Myhre were supported by the Research Council of Norway, through the grants SLAC, AEROCOM-P3 and ClimSense. K. Zhang acknowledges the German Climate Computing Center (Deutsches Klimarechenzentrum GmbH, DKRZ) for making the computational resources available for ECHAM5.5-HAM2 simulations. The CALIOP and AeroCom data and tools used to produce the aerosol extinction profiles analyzed in this paper are available on the AeroCom Database and User Server (aerocom-users.met.no). They are accessible upon request, following the AeroCom Policy and access conditions described under http://aerocom.met.no/data.html. NR 76 TC 1 Z9 1 U1 9 U2 16 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 2016 VL 121 IS 12 BP 7254 EP 7283 DI 10.1002/2015JD024639 PG 30 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DT6YU UT WOS:000381631800033 ER PT J AU Fried, A Barth, MC Bela, M Weibring, P Richter, D Walega, J Li, Y Pickering, K Apel, E Hornbrook, R Hills, A Riemer, DD Blake, N Blake, DR Schroeder, JR Luo, ZJ Crawford, JH Olson, J Rutledge, S Betten, D Biggerstaff, MI Diskin, GS Sachse, G Campos, T Flocke, F Weinheimer, A Cantrell, C Pollack, I Peischl, J Froyd, K Wisthaler, A Mikoviny, T Woods, S AF Fried, A. Barth, M. C. Bela, M. Weibring, P. Richter, D. Walega, J. Li, Y. Pickering, K. Apel, E. Hornbrook, R. Hills, A. Riemer, D. D. Blake, N. Blake, D. R. Schroeder, J. R. Luo, Z. J. Crawford, J. H. Olson, J. Rutledge, S. Betten, D. Biggerstaff, M. I. Diskin, G. S. Sachse, G. Campos, T. Flocke, F. Weinheimer, A. Cantrell, C. Pollack, I. Peischl, J. Froyd, K. Wisthaler, A. Mikoviny, T. Woods, S. TI Convective transport of formaldehyde to the upper troposphere and lower stratosphere and associated scavenging in thunderstorms over the central United States during the 2012DC3 study SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID PEM-TROPICS-B; AIRBORNE MEASUREMENTS; TROPOPAUSE REGION; AIR-POLLUTION; MODEL; CHEMISTRY; OZONE; IMPACT; SCALE; SPECTROMETER AB We have developed semi-independent methods for determining CH2O scavenging efficiencies (SEs) during strong midlatitude convection over the western, south-central Great Plains, and southeastern regions of the United States during the 2012 Deep Convective Clouds and Chemistry (DC3) Study. The Weather Research and Forecasting model coupled with chemistry (WRF-Chem) was employed to simulate one DC3 case to provide an independent approach of estimating SEs and the opportunity to study CH2O retention in ice when liquid drops freeze. Measurements of CH2O instorminflow and outflow were acquired on board the NASA DC-8 and the NSF/National Center for Atmospheric Research Gulfstream V (GV) aircraft employing cross-calibrated infrared absorption spectrometers. This study also relied heavily on the nonreactive tracers i-/n-butane and i-/n-pentane measured on both aircraft in determining lateral entrainment rates during convection as well as their ratios to ensure that inflow and outflow air masses did not have different origins. Of the five storm cases studied, the various tracer measurements showed that the inflow and outflow from four storms were coherently related. The combined average of the various approaches from these storms yield remarkably consistent CH2O scavenging efficiency percentages of: 54% +/- 3% for 29 May; 54% +/- 6% for 6 June; 58% +/- 13% for 11 June; and 41 +/- 4% for 22 June. The WRF-Chem SE result of 53% for 29 May was achieved only when assuming complete CH2O degassing from ice. Further analysis indicated that proper selection of corresponding inflow and outflow time segments is more important than the particular mixing model employed. C1 [Fried, A.; Weibring, P.; Richter, D.; Walega, J.] Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA. [Barth, M. C.; Apel, E.; Hornbrook, R.; Hills, A.; Campos, T.; Flocke, F.; Weinheimer, A.] Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA. [Bela, M.; Cantrell, C.] Univ Colorado, Atmospher & Ocean Sci, Boulder, CO 80309 USA. [Li, Y.] Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA. [Pickering, K.] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. [Riemer, D. D.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA. [Blake, N.; Blake, D. R.; Schroeder, J. R.] Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA. [Luo, Z. J.] CUNY, City Coll New York, New York, NY 10021 USA. [Crawford, J. H.; Olson, J.; Diskin, G. S.; Sachse, G.] NASA, Langley Res Ctr, Hampton, VA 23665 USA. [Rutledge, S.; Pollack, I.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA. [Betten, D.; Biggerstaff, M. I.] Univ Oklahoma, Sch Meteorol, Natl Weather Ctr, Norman, OK 73019 USA. [Peischl, J.; Froyd, K.] NOAA, ESRL, Boulder, CO USA. [Peischl, J.; Froyd, K.] Univ Colorado, CIRES, Boulder, CO 80309 USA. [Wisthaler, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, Innsbruck, Austria. [Wisthaler, A.; Mikoviny, T.] Univ Oslo, Dept Chem, Oslo, Norway. [Mikoviny, T.] Oak Ridge Associated Univ, Oak Ridge, TN USA. [Woods, S.] SPEC Inc, Boulder, CO USA. RP Fried, A (reprint author), Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA. EM Alan.Fried@colorado.edu RI Peischl, Jeff/E-7454-2010; Pickering, Kenneth/E-6274-2012; Pollack, Ilana/F-9875-2012; Manager, CSD Publications/B-2789-2015 OI Peischl, Jeff/0000-0002-9320-7101; FU National Science Foundation [1261559]; NASA [NNX12AM08G]; Earth Observing Laboratory (EOL) of NCAR; NSF; National Science Foundation; Austrian Federal Ministry for Transport, Innovation and Technology (bmvit) through the Austrian Space Applications Programme (ASAP) of the Austrian Research Promotion Agency (FFG) FX The lead author wishes to acknowledge funding for this work from the National Science Foundation under award 1261559 in 2013 and from NASA under award NNX12AM08G in 2012. Data from the DC3 field project can be found at http://data.eol.ucar.edu/master_list/?project=DC3. The aircraft data are also located at http://www-air.larc.nasa.gov/cgi-bin/ArcView/dc3-seac4rs. The authors gratefully acknowledge support from the Earth Observing Laboratory (EOL) of NCAR and the NSF for supporting the development of our GV CAMS instrument with internal funds, and Gary Granger of EOL for extensive software development and support on the CAMS instrument. The authors wish to thank the NASA DC-8 and NSF/NCAR GV pilots, staffs, and ground crews for their invaluable support both before and during DC3. Finally, Fried and his group wish to acknowledge Frank K. Tittel at Rice University for his efforts in helping us transform DFG technology from the laboratory to the real world. The National Center for Atmospheric Research is sponsored by the National Science Foundation. The PTR-MS measurements aboard the NASA DC-8 were supported by the Austrian Federal Ministry for Transport, Innovation and Technology (bmvit) through the Austrian Space Applications Programme (ASAP) of the Austrian Research Promotion Agency (FFG). Tomas Mikoviny was supported by an appointment to the NASA Postdoctoral Program at the Langley Research Center, administered by Oak Ridge Associated Universities through a contract with NASA. NR 65 TC 0 Z9 0 U1 5 U2 8 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 2016 VL 121 IS 12 BP 7430 EP 7460 DI 10.1002/2015JD024477 PG 31 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DT6YU UT WOS:000381631800042 ER PT J AU Jensen, SA Burst, JM Duenow, JN Guthrey, HL Moseley, J Moutinho, HR Johnston, SW Kanevce, A Al-Jassim, MM Metzger, WK AF Jensen, S. A. Burst, J. M. Duenow, J. N. Guthrey, H. L. Moseley, J. Moutinho, H. R. Johnston, S. W. Kanevce, A. Al-Jassim, M. M. Metzger, W. K. TI Long carrier lifetimes in large-grain polycrystalline CdTe without CdCl2 SO APPLIED PHYSICS LETTERS LA English DT Article ID SOLAR-CELLS AB For decades, polycrystalline CdTe thin films for solar applications have been restricted to grain sizes of microns or less whereas other semiconductors such as silicon and perovskites have produced devices with grains ranging from less than a micron to more than 1 mm. Because the lifetimes in as-deposited polycrystalline CdTe films are typically limited to less than a few hundred picoseconds, a CdCl2 treatment is generally used to improve the lifetime; but this treatment may limit the achievable hole density by compensation. Here, we establish methods to produce CdTe films with grain sizes ranging from hundreds of nanometers to several hundred microns by close-spaced sublimation at industrial manufacturing growth rates. Two-photon excitation photoluminescence spectroscopy shows a positive correlation of lifetime with grain size. Large-grain, as-deposited CdTe exhibits lifetimes exceeding 10 ns without Cl, S, O, or Cu. This uncompensated material allows dopants such as P to achieve a hole density of 10(16) cm(-3), which is an order of magnitude higher than standard CdCl2-treated devices, without compromising the lifetime. Published by AIP Publishing. C1 [Jensen, S. A.; Burst, J. M.; Duenow, J. N.; Guthrey, H. L.; Moseley, J.; Moutinho, H. R.; Johnston, S. W.; Kanevce, A.; Al-Jassim, M. M.; Metzger, W. K.] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Jensen, SA; Metzger, WK (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. EM Soren.Jensen@nrel.gov; andWyatt.Metzger@nrel.gov RI Jensen, Soeren/L-6781-2016 OI Jensen, Soeren/0000-0001-9245-8198 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy [DE-AC36-08GO28308] FX We thank Dr. Darius Kuciauskas for useful discussion and assistance with the measurements. This research was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, under Contract No. DE-AC36-08GO28308. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. NR 34 TC 5 Z9 5 U1 9 U2 15 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 27 PY 2016 VL 108 IS 26 AR 263903 DI 10.1063/1.4954904 PG 4 WC Physics, Applied SC Physics GA DQ4MO UT WOS:000379178200050 ER PT J AU Ma, J Liu, ZF Neaton, JB Wang, LW AF Ma, Jie Liu, Zhen-Fei Neaton, Jeffrey B. Wang, Lin-Wang TI The energy level alignment at metal-molecule interfaces using Wannier-Koopmans method SO APPLIED PHYSICS LETTERS LA English DT Article ID DENSITY-FUNCTIONAL THEORY; JUNCTION CONDUCTANCE; ELECTRON-GAS; SEMICONDUCTORS; SPECTROSCOPY; CHARGE AB We apply a recently developed Wannier-Koopmans method (WKM), based on density functional theory (DFT), to calculate the electronic energy level alignment at an interface between a molecule and metal substrate. We consider two systems: benzenediamine on Au (111), and a bipyridine-Au molecular junction. The WKM calculated level alignment agrees well with the experimental measurements where available, as well as previous GW and DFT + Sigma results. Our results suggest that the WKM is a general approach that can be used to correct DFT eigenvalue errors, not only in bulk semiconductors and isolated molecules, but also in hybrid interfaces. Published by AIP Publishing. C1 [Ma, Jie; Liu, Zhen-Fei; Neaton, Jeffrey B.; Wang, Lin-Wang] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Liu, Zhen-Fei; Neaton, Jeffrey B.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Neaton, Jeffrey B.] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. [Neaton, Jeffrey B.] Kavli Energy Nanosci Inst Berkeley, Berkeley, CA 94720 USA. RP Wang, LW (reprint author), Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM lwwang@lbl.gov RI Liu, Zhenfei/D-8980-2017 FU U.S. Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [DE-AC02-05CH11231]; Material Theory program in Lawrence Berkeley National Laboratory [KC2301]; Molecular Foundry through the U.S. Department of Energy, Office of Basic Energy Sciences FX This work is supported by the U.S. Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract No. DE-AC02-05CH11231, through the Material Theory program [KC2301] in Lawrence Berkeley National Laboratory. This work is also supported by the Molecular Foundry through the U.S. Department of Energy, Office of Basic Energy Sciences under the same contract number. This work uses the resource of National Energy Research Scientific Computing center (NERSC). NR 27 TC 1 Z9 1 U1 7 U2 12 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 27 PY 2016 VL 108 IS 26 AR 262104 DI 10.1063/1.4955128 PG 4 WC Physics, Applied SC Physics GA DQ4MO UT WOS:000379178200021 ER PT J AU Mayer, M Nattress, J Jovanovic, I AF Mayer, M. Nattress, J. Jovanovic, I. TI Detection of special nuclear material from delayed neutron emission induced by a dual-particle monoenergetic source SO APPLIED PHYSICS LETTERS LA English DT Article ID ACTIVE INTERROGATION; FISSIONABLE MATERIAL; GAMMA-RAYS; URANIUM; SIGNATURES; THORIUM AB Detection of unique signatures of special nuclear materials is critical for their interdiction in a variety of nuclear security and nonproliferation scenarios. We report on the observation of delayed neutrons from fission of uranium induced in dual-particle active interrogation based on the B-11(d,n gamma)C-12 nuclear reaction. Majority of the fissions are attributed to fast fission induced by the incident quasi-monoenergetic neutrons. A Li-doped glass-polymer composite scintillation neutron detector, which displays excellent neutron/gamma discrimination at low energies, was used in the measurements, along with a recoil-based liquid scintillation detector. Time-dependent buildup and decay of delayed neutron emission from U-238 were measured between the interrogating beam pulses and after the interrogating beam was turned off, respectively. Characteristic buildup and decay time profiles were compared to the common parametrization into six delayed neutron groups, finding a good agreement between the measurement and nuclear data. This method is promising for detecting fissile and fissionable materials in cargo scanning applications and can be readily integrated with transmission radiography using low-energy nuclear reaction sources. Published by AIP Publishing. C1 [Mayer, M.] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA. [Nattress, J.; Jovanovic, I.] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA. [Mayer, M.] Pacific Northwest Natl Lab, Richland, WA 99354 USA. RP Jovanovic, I (reprint author), Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA. EM ijov@umich.edu OI Mayer, Michael/0000-0001-7600-0873 FU National Science Foundation [ECCS-1348366]; U.S. Department of Homeland Security [2014-DN-077-ARI078-02]; National Nuclear Security Administration's Next Generation Safeguards Initiative FX The work was supported by the National Science Foundation under Grant No. ECCS-1348366 and by the U.S. Department of Homeland Security under Grant Award No. 2014-DN-077-ARI078-02. The research of J.N. was performed under appointment to the Nuclear Nonproliferation International Safeguards Graduate Fellowship Program sponsored by the National Nuclear Security Administration's Next Generation Safeguards Initiative. The authors would like to thank P. Binns and H. Moazeni of MIT Bates Research and Engineering Center for help with operating the linear accelerator, to Z. Ounaies, A. Foster, A. Meddeb, and C. Trivelpiece of Pennsylvania State University for their contributions to the development of the neutron detector used in this work, to P. Rose and A. Erickson of Georgia Institute of Technology for their contributions to active interrogation experiments, and to Z. Hartwig of MIT for assistance with the ADAQ software. NR 27 TC 0 Z9 0 U1 4 U2 8 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 27 PY 2016 VL 108 IS 26 AR 264102 DI 10.1063/1.4955051 PG 5 WC Physics, Applied SC Physics GA DQ4MO UT WOS:000379178200052 ER PT J AU Nazaretski, E Xu, W Bouet, N Zhou, J Yan, H Huang, X Chu, YS AF Nazaretski, E. Xu, W. Bouet, N. Zhou, J. Yan, H. Huang, X. Chu, Y. S. TI Development and characterization of monolithic multilayer Laue lens nanofocusing optics SO APPLIED PHYSICS LETTERS LA English DT Article ID X-RAY MICROSCOPY; SPATIAL-RESOLUTION; NM; PTYCHOGRAPHY; OPTIMIZATION AB We have developed an experimental approach to bond two independent linear Multilayer Laue Lenses (MLLs) together. A monolithic MLL structure was characterized using ptychography at 12 keV photon energy, and we demonstrated 12nm and 24 nm focusing in horizontal and vertical directions, respectively. Fabrication of 2D MLL optics allows installation of these focusing elements in more conventional microscopes suitable for x-ray imaging using zone plates, and opens easier access to 2D imaging with high spatial resolution in the hard x-ray regime. Published by AIP Publishing. C1 [Nazaretski, E.; Xu, W.; Bouet, N.; Zhou, J.; Yan, H.; Huang, X.; Chu, Y. S.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Xu, W (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM weihexu@bnl.gov RI Huang, Xiaojing/K-3075-2012 OI Huang, Xiaojing/0000-0001-6034-5893 FU DOE Office of Science by Brookhaven National Laboratory [DE-SC0012704] FX This research used resources of the National Synchrotron Light Source II and experiments were conducted at 3-ID beamline of the NSLS-II, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. NR 25 TC 2 Z9 2 U1 10 U2 13 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 27 PY 2016 VL 108 IS 26 AR 261102 DI 10.1063/1.4955022 PG 4 WC Physics, Applied SC Physics GA DQ4MO UT WOS:000379178200002 ER PT J AU Sallis, S Pereira, N Mukherjee, P Quackenbush, NF Faenza, N Schlueter, C Lee, TL Yang, WL Cosandey, F Amatucci, GG Piper, LFJ AF Sallis, S. Pereira, N. Mukherjee, P. Quackenbush, N. F. Faenza, N. Schlueter, C. Lee, T. -L. Yang, W. L. Cosandey, F. Amatucci, G. G. Piper, L. F. J. TI Surface degradation of Li1-xNi0.80Co0.15Al0.05O2 cathodes: Correlating charge transfer impedance with surface phase transformations SO APPLIED PHYSICS LETTERS LA English DT Article ID LITHIUM-ION BATTERIES; POSITIVE ELECTRODE MATERIAL; SPECTROSCOPY; MECHANISMS; PARTICLES; INTERFACE; LICOO2; FILMS; CYCLE; RICH AB The pronounced capacity fade in Ni-rich layered oxide lithium ion battery cathodes observed when cycling above 4.1V (versus Li/Li+) is associated with a rise in impedance, which is thought to be due to either bulk structural fatigue or surface reactions with the electrolyte (or combination of both). Here, we examine the surface reactions at electrochemically stressed Li1-xNi0.8Co0.15Al0.05O2 binder-free powder electrodes with a combination of electrochemical impedance spectroscopy, spatially resolving electron microscopy, and spatially averaging X-ray spectroscopy techniques. We circumvent issues associated with cycling by holding our electrodes at high states of charge (4.1V, 4.5V, and 4.75V) for extended periods and correlate charge-transfer impedance rises observed at high voltages with surface modifications retained in the discharged state (2.7 V). The surface modifications involve significant cation migration (and disorder) along with Ni and Co reduction, and can occur even in the absence of significant Li2CO3 and LiF. These data provide evidence that surface oxygen loss at the highest levels of Li+ extraction is driving the rise in impedance. Published by AIP Publishing. C1 [Sallis, S.; Piper, L. F. J.] SUNY Binghamton, Mat Sci & Engn, Binghamton, NY 13902 USA. [Pereira, N.; Faenza, N.; Amatucci, G. G.] Rutgers State Univ, Dept Mat Sci & Engn, Energy Storage Res Grp, North Brunswick, NJ 08902 USA. [Mukherjee, P.; Cosandey, F.] Rutgers State Univ, Dept Mat Sci & Engn, North Brunswick, NJ 08902 USA. [Quackenbush, N. F.; Piper, L. F. J.] SUNY Binghamton, Dept Phys Appl Phys & Astron, Binghamton, NY 13902 USA. [Schlueter, C.; Lee, T. -L.] Diamond Light Source Ltd, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England. [Yang, W. L.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Piper, LFJ (reprint author), SUNY Binghamton, Mat Sci & Engn, Binghamton, NY 13902 USA.; Piper, LFJ (reprint author), SUNY Binghamton, Dept Phys Appl Phys & Astron, Binghamton, NY 13902 USA. EM lpiper@binghamton.edu RI Yang, Wanli/D-7183-2011; OI Yang, Wanli/0000-0003-0666-8063; Piper, Louis/0000-0002-3421-3210 FU NECCES, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0012583]; Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX We thank Professor Gerbrand Ceder for discussions. This work was supported as part of NECCES, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0012583. XAS experiments were performed at beamline 8.0.1 at the ALS and beamline I09 at Diamond Light Source. The work at ALS was supported by the Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. We thank Diamond Light Source for access to beamline I09 (SI12764) that contributed to the results presented here. NR 22 TC 0 Z9 0 U1 18 U2 37 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 27 PY 2016 VL 108 IS 26 AR 263902 DI 10.1063/1.4954800 PG 4 WC Physics, Applied SC Physics GA DQ4MO UT WOS:000379178200049 ER PT J AU Tondreau, AM Boncella, JM AF Tondreau, Aaron M. Boncella, James M. TI 1,2-Addition of Formic or Oxalic Acid to N-{CH2CH2(PiPr(2))}(2)-Supported Mn(I) Dicarbonyl Complexes and the Manganese-Mediated Decomposition of Formic Acid SO ORGANOMETALLICS LA English DT Article ID BACILLUS-SUBTILIS YVRK; HYDROGEN GENERATION; OXALATE DECARBOXYLASE; RUTHENIUM COMPLEXES; METHANOL DEHYDROGENATION; AQUEOUS-SOLUTION; MILD CONDITIONS; IRON CATALYST; WATER; LIGANDS AB ((PNP)-P-H)Mn(CO)(2) (I) carboxylate complexes ((PNP)-P-H = HN{CH2CH2(PiPr(2))}2) were prepared via 1,2 -addition of either formic or oxalic acid to (PNP)Mn(CO)(2) (PNP = the deprotonated, amide form of the ligand N-{CH2CH2(PiPr(2))}(2)). The structural and spectral properties of these complexes were compared. The manganese formate complex was found to be dimeric in the solid state and monomeric in solution. Half an equivalent of oxalic acid was employed to form the bridging oxalate dimanganese complex. The catalytic competencies of the carboxylate complexes were assessed, and the formate complex was found to decompose formic acid catalytically. Both dehydrogenation and dehydration pathways were active as assessed by the presence of H2CO, and H2O. The addition of LiBF4 exhibited a strong inhibitory effect on the catalysis. C1 [Tondreau, Aaron M.; Boncella, James M.] Los Alamos Natl Lab, Div Chem, MS J514, Los Alamos, NM 87545 USA. RP Boncella, JM (reprint author), Los Alamos Natl Lab, Div Chem, MS J514, Los Alamos, NM 87545 USA. EM boncella@lanl.gov FU Los Alamos National Laboratory; LANL Science Campaign 5 FX A.M.T. acknowledges a Director's funded postdoctoral fellowship from Los Alamos National Laboratory for support. We also wish to acknowledge LANL Science Campaign 5 for partial support of this research. NR 48 TC 4 Z9 4 U1 1 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0276-7333 EI 1520-6041 J9 ORGANOMETALLICS JI Organometallics PD JUN 27 PY 2016 VL 35 IS 12 BP 2049 EP 2052 DI 10.1021/acs.organomet.6b00274 PG 4 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA DP9OW UT WOS:000378826700001 ER PT J AU Yuan, J Fracaroli, AM Klemperer, WG AF Yuan, Jian Fracaroli, Alejandro M. Klemperer, Walter G. TI Convergent Synthesis of a Metal-Organic Framework Supported Olefin Metathesis Catalyst SO ORGANOMETALLICS LA English DT Article ID RING-CLOSING METATHESIS; ASYMMETRIC CATALYSIS; RUTHENIUM COMPLEXES; TUNABLE PLATFORM; WATER OXIDATION; ENOL ETHERS; EFFICIENT; CHEMISTRY; FUNCTIONALIZATION; EPOXIDATION AB Synthesis of a metal organic framework (MOF)-supported olefin metathesis catalyst has been accomplished for the first time following a new, convergent approach where an aldehyde-functionalized derivative of Hoveyda's recently reported ruthenium catecholate olefin metathesis catalyst is condensed with an amine-functionalized IRMOF-74-III. The resulting material, denoted MOF-Ru, has well-defined, catalytically active ruthenium centers confined within channels having a ca. 20 angstrom diameter. MOF-Ru is a recyclable, single-site catalyst for self-cross metathesis and ring-closing metathesis of terminal olefins. Comparison of this heterogeneous catalyst with a homogeneous analogue shows different responses to substrate size and shape suggestive of confinement effects. The MOF-Ru catalyst also displays greater resistance to double-bond migration that can be attributed to greater catalyst stability. For the preparation of well-defined, single-site heterogeneous catalysts where catalyst purity is essential, the convergent approach employed here, where the catalytic center is prepared ex situ and covalently linked to an intact MOF, offers an attractive alternative to in situ catalyst preparation as currently practiced in MOF chemistry. C1 [Yuan, Jian; Fracaroli, Alejandro M.; Klemperer, Walter G.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Yuan, Jian; Klemperer, Walter G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Klemperer, Walter G.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA. [Yuan, Jian] Quintara Biosci, 170 Harbor Way,Suite 100, San Francisco, CA 94080 USA. RP Yuan, J; Klemperer, WG (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Yuan, J; Klemperer, WG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.; Klemperer, WG (reprint author), Univ Illinois, Dept Chem, Urbana, IL 61801 USA.; Yuan, J (reprint author), Quintara Biosci, 170 Harbor Way,Suite 100, San Francisco, CA 94080 USA. EM jianyuanchem@gmail.com; wklemper@uiuc.edu FU U.S. Department of Defense, Defense Threat Reduction Agency [HDTRA 1-12-1-0053]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX W.G.K. and J.Y. acknowledge Omar M. Yaghi, Felipe Gandara, Juncong Jiang, Yuebiao Zhang, Yingbo Zhao, Hiroyasu Furukawa, and Gregory Girolami for their invaluable advice and assistance. This research was funded by the U.S. Department of Defense, Defense Threat Reduction Agency (HDTRA 1-12-1-0053). Part of this research was performed at the Molecular Foundry as a user project, which was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 71 TC 1 Z9 1 U1 19 U2 35 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0276-7333 EI 1520-6041 J9 ORGANOMETALLICS JI Organometallics PD JUN 27 PY 2016 VL 35 IS 12 BP 2149 EP 2155 DI 10.1021/acs.organomet.6b00365 PG 7 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA DP9OW UT WOS:000378826700013 ER PT J AU Levin, EM AF Levin, E. M. TI Charge carrier effective mass and concentration derived from combination of Seebeck coefficient and Te-125 NMR measurements in complex tellurides SO PHYSICAL REVIEW B LA English DT Article AB Thermoelectric materials utilize the Seebeck effect to convert heat to electrical energy. The Seebeck coefficient (thermopower), S, depends on the free (mobile) carrier concentration, n, and effective mass, m*, as S similar to m*/n(2/3). The carrier concentration in tellurides can be derived from Te-125 nuclear magnetic resonance (NMR) spinlattice relaxation measurements. The NMR spin-lattice relaxation rate, 1/T-1, depends on both n and m* as 1/T-1 similar to (m*)(3)/(2)n (within classical Maxwell-Boltzmann statistics) or as 1/T-1 similar to (m*)(2)n(2/3) (within quantum Fermi-Dirac statistics), which challenges the correct determination of the carrier concentration in some materials by NMR. Here it is shown that the combination of the Seebeck coefficient and Te-125 NMR spin-lattice relaxation measurements in complex tellurides provides a unique opportunity to derive the carrier effective mass and then to calculate the carrier concentration. This approach was used to study AgxSbxGe50-2xTe50, well-known GeTe-based high-efficiency tellurium-antimony-germanium-silver thermoelectric materials, where the replacement of Ge by [Ag+Sb] results in significant enhancement of the Seebeck coefficient. Values of both m* and n derived using this combination show that the enhancement of thermopower can be attributed primarily to an increase of the carrier effective mass and partially to a decrease of the carrier concentration when the [Ag+Sb] content increases. C1 [Levin, E. M.] US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA. [Levin, E. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Levin, EM (reprint author), US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA.; Levin, EM (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. EM levin@iastate.edu FU U.S. DOE, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division; U.S. DOE by Iowa State University [AC02-07CH11358] FX The author thanks the Materials Preparation Center at the Ames Laboratory, U.S. Department of Energy (DOE), for sample synthesis, and W. E. Straszheim, A. Howard, and Z. Swanson for help with experiments. This paper was supported by the U.S. DOE, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division. The research was performed at the Ames Laboratory, which is operated for the U.S. DOE by Iowa State University under Contract No. DE-AC02-07CH11358. NR 20 TC 0 Z9 0 U1 8 U2 13 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 27 PY 2016 VL 93 IS 24 AR 245202 DI 10.1103/PhysRevB.93.245202 PG 5 WC Physics, Condensed Matter SC Physics GA DP9KV UT WOS:000378816000010 ER PT J AU Metlitski, MA Vishwanath, A AF Metlitski, Max A. Vishwanath, Ashvin TI Particle-vortex duality of two-dimensional Dirac fermion from electric-magnetic duality of three-dimensional topological insulators SO PHYSICAL REVIEW B LA English DT Article ID PHASE-STRUCTURE; QUANTUM HALL; THETA-PARAMETER; LANDAU-LEVEL; 3 DIMENSIONS; SUPERCONDUCTORS; TRANSITION; MODELS; STATE; FIELD AB Particle-vortex duality is a powerful theoretical tool that has been used to study bosonic systems. Here, we propose an analogous duality for Dirac fermions in 2+1 dimensions. The physics of a single Dirac cone is proposed to be described by a dual theory, QED(3), with again a single Dirac fermion but coupled to a gauge field. This duality is established by considering two alternate descriptions of the three-dimensional topological insulator (TI) surface. The first description is the usual Dirac fermion surface state. The dual description is accessed via an electric-magnetic duality of the bulk TI coupled to a gauge field, which maps it to a gauged chiral topological insulator. This alternate description ultimately leads to a new surface theory, QED(3), which provides a simple description of otherwise intractable interacting electronic states. For example, an explicit derivation of the T-Pfaffian state, a proposed surface topological order of the TI, is obtained by simply pair condensing the dual fermions. The roles of time-reversal and particle-hole symmetries are exchanged by the duality, which connects some of our results to a recent conjecture by Son on particle-hole symmetric quantum Hall states. C1 [Metlitski, Max A.] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA. [Metlitski, Max A.] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada. [Vishwanath, Ashvin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Vishwanath, Ashvin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Metlitski, MA (reprint author), Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA.; Metlitski, MA (reprint author), Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada. FU Simons Investigator award; U.S. Army Research Office [W911NF-14-1-0379]; National Science Foundation [NSF PHY11-25915] FX We thank D. Son for inspiring discussions. A.V. thanks A. Kapustin, S. Kachru, and N. Seiberg for discussions on S duality. M.M. thanks M. P. A. Fisher and C. L. Kane for a previous collaboration on a related problem. We would like to thank the organizers of the Simons Symposium on Quantum Entanglement, where this work was initiated. A.V. was supported by a Simons Investigator award. M.M. was supported by the U.S. Army Research Office, Grant No. W911NF-14-1-0379. This research was supported in part by the National Science Foundation under Grant No. NSF PHY11-25915. NR 74 TC 28 Z9 28 U1 5 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 27 PY 2016 VL 93 IS 24 AR 245151 DI 10.1103/PhysRevB.93.245151 PG 16 WC Physics, Condensed Matter SC Physics GA DP9KV UT WOS:000378816000006 ER PT J AU Taylor, AE Morrow, R Fishman, RS Calder, S Kolesnikov, AI Lumsden, MD Woodward, PM Christianson, AD AF Taylor, A. E. Morrow, R. Fishman, R. S. Calder, S. Kolesnikov, A. I. Lumsden, M. D. Woodward, P. M. Christianson, A. D. TI Spin-orbit coupling controlled ground state in Sr2ScOsO6 SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE FERRIMAGNETISM; DOUBLE PEROVSKITES; MAGNETIC-STRUCTURES; LATTICE-DISTORTION; CRYSTAL; TRANSITION; ANTIFERROMAGNETISM; SR2CROSO6; BEHAVIOR; OXIDES AB We report neutron scattering experiments which reveal a large spin gap in the magnetic excitation spectrum of weakly-monoclinic double perovskite Sr2ScOsO6. The spin gap is demonstrative of appreciable spin-orbit-induced anisotropy, despite nominally orbitally-quenched 5d(3) Os5+ ions. The system is successfully modeled including nearest neighbor interactions in a Heisenberg Hamiltonian with exchange anisotropy. We find that the presence of the spin-orbit-induced anisotropy is essential for the realization of the type I antiferromagnetic ground state. This demonstrates that physics beyond the LS or JJ coupling limits plays an active role in determining the collective properties of 4d(3) and 5d(3) systems and that theoretical treatments must include spin-orbit coupling. C1 [Taylor, A. E.; Calder, S.; Lumsden, M. D.; Christianson, A. D.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA. [Morrow, R.; Woodward, P. M.] Ohio State Univ, Dept Chem, 120 W 18th Ave, Columbus, OH 43210 USA. [Fishman, R. S.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Kolesnikov, A. I.] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. [Christianson, A. D.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Taylor, AE (reprint author), Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA. RI Taylor, Alice/I-5616-2012; christianson, andrew/A-3277-2016; Lumsden, Mark/F-5366-2012 OI Taylor, Alice/0000-0002-3036-3019; christianson, andrew/0000-0003-3369-5884; Lumsden, Mark/0000-0002-5472-9660 FU Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy (DOE); Center for Emergent Materials an NSF Materials Research Science and Engineering Center [DMR-1420451]; DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division; U.S. Department of Energy [DE-AC05-00OR22725] FX The authors gratefully acknowledge M. B. Stone, S. E. Nagler and B. D. Gaulin for useful discussions. The research at Oak Ridge National Laboratory's Spallation Neutron Source was supported by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy (DOE). Support for a portion of this research was provided by the Center for Emergent Materials an NSF Materials Research Science and Engineering Center (DMR-1420451). Research by RF sponsored by the DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.; This paper has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this paper, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). NR 46 TC 2 Z9 2 U1 17 U2 27 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 27 PY 2016 VL 93 IS 22 AR 220408 DI 10.1103/PhysRevB.93.220408 PG 5 WC Physics, Condensed Matter SC Physics GA DP9JC UT WOS:000378811500001 ER PT J AU Vigil-Fowler, D Louie, SG Lischner, J AF Vigil-Fowler, Derek Louie, Steven G. Lischner, Johannes TI Dispersion and line shape of plasmon satellites in one, two, and three dimensions SO PHYSICAL REVIEW B LA English DT Article ID SINGLE-PARTICLE SPECTRUM; ELECTRON-GAS; METALS; PHOTOEMISSION; GRAPHENE; DEVICES AB Using state-of-the-art many-body Green's function calculations based on the GW plus cumulant approach, we analyze the properties of plasmon satellites in the electron spectral function resulting from electron-plasmon interactions in one-, two-, and three-dimensional systems. Specifically, we show how their dispersion relation, line shape, and linewidth are related to the properties of the constituent electrons and plasmons. To gain insight into the many-body processes giving rise to the formation of plasmon satellites, we connect the GW plus cumulant approach to a many-body wave-function picture of electron-plasmon interactions and introduce the coupling-strength-weighted electron-plasmon joint density states as a powerful concept for understanding plasmon satellites. C1 [Vigil-Fowler, Derek] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Louie, Steven G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Louie, Steven G.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Lischner, Johannes] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England. [Lischner, Johannes] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England. [Lischner, Johannes] Univ London Imperial Coll Sci Technol & Med, Thomas Young Ctr Theory & Simulat Mat, London SW7 2AZ, England. RP Lischner, J (reprint author), Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England.; Lischner, J (reprint author), Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England.; Lischner, J (reprint author), Univ London Imperial Coll Sci Technol & Med, Thomas Young Ctr Theory & Simulat Mat, London SW7 2AZ, England. EM jlischner597@gmail.com FU EPRSC [EP/N005244/1, EP/L000202]; Thomas Young Centre [TYC-101]; SciDAC Program on Excited State Phenomena in Energy Materials - U.S. Department of Energy (DOE), Office of Basic Energy Sciences; Advanced Scientific Computing Research, under Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; National Science Foundation [DMR15-1508412] FX The authors would like to thank Prof. Feliciano Giustino for valuable discussions. J.L. acknowledges support from EPRSC under Grant No. EP/N005244/1 and also from the Thomas Young Centre under Grant No. TYC-101. Via J.L.'s membership in the UK's HEC Materials Chemistry Consortium, which is funded by EPSRC (EP/L000202), this work used the ARCHER UK National Supercomputing Service. S.G.L. acknowledges support by the SciDAC Program on Excited State Phenomena in Energy Materials funded by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences and of Advanced Scientific Computing Research, under Contract No. DE-AC02-05CH11231 at Lawrence Berkeley National Laboratory (algorithm and code development) and by the National Science Foundation under Grant DMR15-1508412 (basic theory and formalism) NR 37 TC 2 Z9 2 U1 6 U2 11 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 27 PY 2016 VL 93 IS 23 AR 235446 DI 10.1103/PhysRevB.93.235446 PG 5 WC Physics, Condensed Matter SC Physics GA DP9JZ UT WOS:000378813800015 ER PT J AU Zhang, KW Ding, D Yang, CL Gan, Y Li, SC Huang, WK Song, YH Jia, ZY Li, XB Zhu, ZH Wen, JS Chen, MS Li, SC AF Zhang, Kai-Wen Ding, Ding Yang, Chao-Long Gan, Yuan Li, Shichao Huang, Wen-Kai Song, Ye-Heng Jia, Zhen-Yu Li, Xiang-Bing Zhu, Zihua Wen, Jinsheng Chen, Mingshu Li, Shao-Chun TI Real-space characterization of reactivity towards water at the Bi2Te3(111) surface SO PHYSICAL REVIEW B LA English DT Article ID ENHANCED THERMOELECTRIC PROPERTIES; TOPOLOGICAL INSULATOR BI2TE3; THIN-FILMS; BI2SE3; SPECTROSCOPY; COEXISTENCE; OXIDATION; STATES AB Surface reactivity is important in modifying the physical and chemical properties of surface-sensitive materials, such as the topological insulators. Even though many studies addressing the reactivity of topological insulators towards external gases have been reported, it is still under heavy debate whether and how the topological insulators react with H2O. Here, we employ scanning tunneling microscopy to directly probe the surface reaction of Bi2Te3 towards H2O. Surprisingly, it is found that only the top quintuple layer is reactive to H2O, resulting in a hydrated Bi bilayer as well as some Bi islands, which passivate the surface and prevent subsequent reaction. A reaction mechanism is proposed with H2Te and hydrated Bi as the products. Unexpectedly, our study indicates that the reaction with water is intrinsic and not dependent on any surface defects. Since water inevitably exists, these findings provide key information when considering the reactions of Bi2Te3 with residual gases or atmosphere. C1 [Zhang, Kai-Wen; Yang, Chao-Long; Gan, Yuan; Li, Shichao; Huang, Wen-Kai; Song, Ye-Heng; Jia, Zhen-Yu; Li, Xiang-Bing; Wen, Jinsheng; Li, Shao-Chun] Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Ding, Ding; Chen, Mingshu] Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Fujian, Peoples R China. [Zhu, Zihua] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Wen, Jinsheng; Li, Shao-Chun] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China. RP Chen, MS (reprint author), Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Fujian, Peoples R China. EM chenms@xmu.edu.cn; scli@nju.edu.cn RI Wen, Jinsheng/F-4209-2010; Zhu, Zihua/K-7652-2012 OI Wen, Jinsheng/0000-0001-5864-1466; FU Ministry of Science and Technology of China [2014CB921103, 2013CB922103]; National Natural Science Foundation of China [11374140, 11374143]; Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics; [NCET-13-0282] FX This work was supported by the Ministry of Science and Technology of China (Grants No. 2014CB921103 and No. 2013CB922103), and by the National Natural Science Foundation of China (Grants No. 11374140 and No. 11374143), NCET-13-0282, and the Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics. NR 34 TC 1 Z9 1 U1 15 U2 19 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 27 PY 2016 VL 93 IS 23 AR 235445 DI 10.1103/PhysRevB.93.235445 PG 6 WC Physics, Condensed Matter SC Physics GA DP9JZ UT WOS:000378813800014 ER PT J AU Zheng, H Terzic, J Ye, F Wan, XG Wang, D Wang, JC Wang, XP Schlottmann, P Yuan, SJ Cao, G AF Zheng, H. Terzic, J. Ye, Feng Wan, X. G. Wang, D. Wang, Jinchen Wang, Xiaoping Schlottmann, P. Yuan, S. J. Cao, G. TI Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE RESISTIVITY; SPIN GAP; SR2IRO4; SRIRO3; TRANSPORT; PHYSICS; STATE AB The orthorhombic perovskite SrIrO3 is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose an insulating state. We report results of our investigation of bulk single-crystal Sr0.94Ir0.78O2.68 or Ir-deficient, orthorhombic perovskite SrIrO3. It retains the same crystal structure as stoichiometric SrIrO3 but exhibits a sharp, simultaneous antiferromagnetic (AFM) and metal-insulator (MI) transition occurring in the basal-plane resistivity at 185 K. Above it, the basal-plane resistivity features an extended regime of almost linear temperature dependence up to 800 K but the strong electronic anisotropy renders an insulating behavior in the out-of-plane resistivity. The Hall resistivity undergoes an abrupt sign change and grows below 40 K, which along with the Sommerfeld constant of 20 mJ/mol K-2 suggests a multiband effect. All results including our first-principles calculations underscore a delicacy of the paramagnetic, metallic state in SrIrO3 that is in close proximity to an AFM insulating state. The contrasting ground states in isostructural Sr0.94Ir0.78O2.68 and SrIrO3 illustrate a critical role of lattice distortions and Ir deficiency in rebalancing the ground state in the iridates. Finally, the concurrent AFM and MI transitions reveal a direct correlation between the magnetic transition and formation of an activation gap in the iridate, which is conspicuously absent in Sr2IrO4. C1 [Zheng, H.; Terzic, J.; Ye, Feng; Wang, Jinchen; Yuan, S. J.; Cao, G.] Univ Kentucky, Ctr Adv Mat, Lexington, KY 40506 USA. [Zheng, H.; Terzic, J.; Ye, Feng; Wang, Jinchen; Yuan, S. J.; Cao, G.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. [Ye, Feng; Wang, Jinchen] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA. [Wan, X. G.; Wang, D.] Nanjing Univ, Dept Phys, Nanjing 210008, Jiangsu, Peoples R China. [Wang, Jinchen] Renmin Univ China, Dept Phys, Beijing, Peoples R China. [Wang, Xiaoping] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. [Schlottmann, P.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA. RP Cao, G (reprint author), Univ Kentucky, Ctr Adv Mat, Lexington, KY 40506 USA.; Cao, G (reprint author), Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. EM cao@uky.edu RI Ye, Feng/B-3210-2010; Wang, Xiaoping/E-8050-2012 OI Ye, Feng/0000-0001-7477-4648; Wang, Xiaoping/0000-0001-7143-8112 FU NSF [DMR-1265162]; Department of Energy (BES) [DE-FG02-98ER45707]; Natural Science Foundation of China [11525417] FX G.C. is very thankful for enlightening conversations with Professor Hae-Young Kee and Professor Yong-Baek Kim. This workwas supported by NSF through Grant No. DMR-1265162 and the Department of Energy (BES) through Grant No. DE-FG02-98ER45707 (P.S.). X.G.W. acknowledges support by Natural Science Foundation of China via Grant No. 11525417. NR 42 TC 1 Z9 1 U1 11 U2 49 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 27 PY 2016 VL 93 IS 23 AR 235157 DI 10.1103/PhysRevB.93.235157 PG 7 WC Physics, Condensed Matter SC Physics GA DP9JZ UT WOS:000378813800008 ER PT J AU Barth, I Toroker, Z Balakin, AA Fisch, NJ AF Barth, Ido Toroker, Zeev Balakin, Alexey A. Fisch, Nathaniel J. TI Beyond nonlinear saturation of backward Raman amplifiers SO PHYSICAL REVIEW E LA English DT Article ID SHORT LASER-PULSES; AMPLIFICATION; PLASMA; COMPRESSION; REGIME AB Backward Raman amplification is limited by relativistic nonlinear dephasing resulting in saturation of the leading spike of the amplified pulse. Pump detuning is employed to mitigate the relativistic phase mismatch and to overcome the associated saturation. The amplified pulse can then be reshaped into a monospike pulse with little precursory power ahead of it, with the maximum intensity increasing by a factor of two. This detuning can be employed advantageously both in regimes where the group velocity dispersion is unimportant and where the dispersion is important but small. C1 [Barth, Ido] Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Toroker, Zeev] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel. [Balakin, Alexey A.] Inst Appl Phys RAS, Nizhnii Novgorod 603950, Russia. [Fisch, Nathaniel J.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08540 USA. RP Barth, I (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM ibarth@princeton.edu RI Balakin, Alexey/Q-9326-2016 OI Balakin, Alexey/0000-0001-6252-7279 FU NNSA [DE-NA0002948]; AFOSR [FA9550-15-1-0391]; DOE [DE-AC02-09CH11466]; DTRA [HDTRA1-11-1-0037]; RFBR [15-32-20641]; Dynasty Foundation FX This work was supported by NNSA Grant No. DE-NA0002948, AFOSR Grant No. FA9550-15-1-0391, DOE Contract No. DE-AC02-09CH11466, DTRA Grant No. HDTRA1-11-1-0037, RFBR Grant No. 15-32-20641, and by the Dynasty Foundation. NR 40 TC 1 Z9 1 U1 2 U2 5 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 27 PY 2016 VL 93 IS 6 AR 063210 DI 10.1103/PhysRevE.93.063210 PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA DQ0EV UT WOS:000378872100014 PM 27415380 ER PT J AU Paglione, J Tanatar, MA Reid, JP Shakeripour, H Petrovic, C Taillefer, L AF Paglione, Johnpierre Tanatar, M. A. Reid, J. -Ph. Shakeripour, H. Petrovic, C. Taillefer, Louis TI Quantum Critical Quasiparticle Scattering within the Superconducting State of CeCoIn5 SO PHYSICAL REVIEW LETTERS LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTORS; HEAVY-FERMION SUPERCONDUCTIVITY; WIEDEMANN-FRANZ LAW; THERMAL-CONDUCTIVITY; CRITICAL-POINT; CUPRATE; FIELD; LIQUID AB The thermal conductivity. of the heavy-fermion metal CeCoIn5 was measured in the normal and superconducting states as a function of temperature T and magnetic field H, for a current and field parallel to the [100] direction. Inside the superconducting state, when the field is lower than the upper critical field H-c2, kappa/T is found to increase as T -> 0, just as in a metal and in contrast to the behavior of all known superconductors. This is due to unpaired electrons on part of the Fermi surface, which dominate the transport above a certain field. The evolution of kappa/T with field reveals that the electron-electron scattering (or transport mass m(star)) of those unpaired electrons diverges as H -> Hc(2) from below, in the same way that it does in the normal state as H -> H-c2 from above. This shows that the unpaired electrons sense the proximity of the field-tuned quantum critical point of CeCoIn5 at H-star = H-c2 even from inside the superconducting state. The fact that the quantum critical scattering of the unpaired electrons is much weaker than the average scattering of all electrons in the normal state reveals a k-space correlation between the strength of pairing and the strength of scattering, pointing to a common mechanism, presumably antiferromagnetic fluctuations. C1 [Paglione, Johnpierre] Univ Maryland, Dept Phys, Ctr Nanophys & Adv Mat, College Pk, MD 20742 USA. [Paglione, Johnpierre; Petrovic, C.; Taillefer, Louis] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. [Tanatar, M. A.; Reid, J. -Ph.; Taillefer, Louis] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada. [Tanatar, M. A.; Reid, J. -Ph.; Taillefer, Louis] Univ Sherbrooke, RQMP, Sherbrooke, PQ J1K 2R1, Canada. [Tanatar, M. A.] Iowa State Univ, Ames Lab USDOE, Ames, IA 50011 USA. [Tanatar, M. A.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Shakeripour, H.] Isfahan Univ Technol, Dept Phys, Esfahan 8415683111, Iran. [Petrovic, C.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Paglione, J (reprint author), Univ Maryland, Dept Phys, Ctr Nanophys & Adv Mat, College Pk, MD 20742 USA.; Paglione, J (reprint author), Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. EM paglione@umd.edu; Louis.Taillefer@USherbrooke.ca FU Canadian Institute for Advanced Research; Canada Research Chair; NSERC; FRQNT; CFI; NSF-CAREER Grant [DMR-0952716]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358] FX This work was supported by the Canadian Institute for Advanced Research and a Canada Research Chair (L. T.), and funded by NSERC, FRQNT, and CFI. Work at the University of Maryland was supported by NSF-CAREER Grant No. DMR-0952716. Part of the work was carried out at the Brookhaven National Laboratory, which is operated for the U.S. Department of Energy by Brookhaven Science Associates (DE-Ac02-98CH10886) and in the Ames Laboratory, supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-07CH11358. NR 51 TC 1 Z9 1 U1 15 U2 16 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 27 PY 2016 VL 117 IS 1 AR 016601 DI 10.1103/PhysRevLett.117.016601 PG 6 WC Physics, Multidisciplinary SC Physics GA DQ0GX UT WOS:000378878300004 PM 27419578 ER PT J AU Yang, SB Tanida, K Kim, BH Adachi, I Aihara, H Asner, DM Aulchenko, V Aushev, T Babu, V Badhrees, I Bakich, AM Barberio, E Bhardwaj, V Bhuyan, B Biswal, J Bonvicini, G Bozek, A Bracko, M Browder, TE Cervenkov, D Chekelian, V Chen, A Cheon, BG Chilikin, K Chistov, R Cho, K Chobanova, V Choi, Y Cinabro, D Dalseno, J Danilov, M Dash, N Dolezal, Z Drasal, Z Dutta, D Eidelman, S Farhat, H Fast, JE Ferber, T Fulsom, BG Gabyshev, N Garmash, A Gaur, V Gillard, R Goh, YM Goldenzweig, P Greenwald, D Grygier, J Haba, J Hamer, P Hara, T Hayasaka, K Hayashii, H Hou, WS Iijima, T Inami, K Inguglia, G Ishikawa, A Itoh, R Iwasaki, Y Jacobs, WW Jaegle, I Jeon, HB Joo, KK Julius, T Kang, KH Kato, E Katrenko, P Kiesling, C Kim, DY Kim, HJ Kim, JB Kim, KT Kim, MJ Kim, SH Kim, SK Kim, YJ Kinoshita, K Kobayashi, N Kodys, P Korpar, S Krizan, P Krokovny, P Kuhr, T Kuzmin, A Kwon, YJ Lange, JS Lee, IS Li, CH Li, H Li, L Li, Y Gioi, LL Libby, J Liventsev, D Lubej, M Masuda, M Matvienko, D Miyabayashi, K Miyata, H Mizuk, R Mohanty, GB Moll, A Moon, HK Mussa, R Nakano, E Nakao, M Nanut, T Nath, KJ Nayak, M Negishi, K Niiyama, M Nisar, NK Nishida, S Ogawa, S Okuno, S Olsen, SL Pakhlova, G Pal, B Park, CW Park, H Pedlar, TK Pestotnik, R Petric, M Piilonen, LE Pulvermacher, C Rauch, J Ritter, M Rostomyan, A Ryu, S Sahoo, H Sakai, Y Sandilya, S Santelj, L Sanuki, T Sato, Y Savinov, V Schluter, T Schneider, O Schnell, G Schwanda, C Schwartz, AJ Seino, Y Senyo, K Seon, O Seong, IS Sevior, ME Shebalin, V Shibata, TA Shiu, JG Shwartz, B Simon, F Sohn, YS Sokolov, A Stanic, S Staric, M Stypula, J Sumihama, M Sumiyoshi, T Takizawa, M Tamponi, U Teramoto, Y Trabelsi, K Trusov, V Uchida, M Uglov, T Unno, Y Uno, S Urquijo, P Usov, Y Vanhoefer, P Varner, G Varvell, KE Vinokurova, A Vossen, A Wagner, MN Wang, CH Wang, MZ Wang, P Wang, XL Watanabe, Y Williams, KM Won, E Yamaoka, J Yashchenko, S Ye, H Yelton, J Yuan, CZ Yusa, Y Zhang, ZP Zhilich, V Zhulanov, V Zupanc, A AF Yang, S. B. Tanida, K. Kim, B. H. Adachi, I. Aihara, H. Asner, D. M. Aulchenko, V. Aushev, T. Babu, V. Badhrees, I. Bakich, A. M. Barberio, E. Bhardwaj, V. Bhuyan, B. Biswal, J. Bonvicini, G. Bozek, A. Bracko, M. Browder, T. E. Cervenkov, D. Chekelian, V. Chen, A. Cheon, B. G. Chilikin, K. Chistov, R. Cho, K. Chobanova, V. Choi, Y. Cinabro, D. Dalseno, J. Danilov, M. Dash, N. Dolezal, Z. Drasal, Z. Dutta, D. Eidelman, S. Farhat, H. Fast, J. E. Ferber, T. Fulsom, B. G. Gabyshev, N. Garmash, A. Gaur, V. Gillard, R. Goh, Y. M. Goldenzweig, P. Greenwald, D. Grygier, J. Haba, J. Hamer, P. Hara, T. Hayasaka, K. Hayashii, H. Hou, W. -S. Iijima, T. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, Y. Jacobs, W. W. Jaegle, I. Jeon, H. B. Joo, K. K. Julius, T. Kang, K. H. Kato, E. Katrenko, P. Kiesling, C. Kim, D. Y. Kim, H. J. Kim, J. B. Kim, K. T. Kim, M. J. Kim, S. H. Kim, S. K. Kim, Y. J. Kinoshita, K. Kobayashi, N. Kodys, P. Korpar, S. Krizan, P. Krokovny, P. Kuhr, T. Kuzmin, A. Kwon, Y. -J. Lange, J. S. Lee, I. S. Li, C. H. Li, H. Li, L. Li, Y. Gioi, L. Li Libby, J. Liventsev, D. Lubej, M. Masuda, M. Matvienko, D. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G. B. Moll, A. Moon, H. K. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K. J. Nayak, M. Negishi, K. Niiyama, M. Nisar, N. K. Nishida, S. Ogawa, S. Okuno, S. Olsen, S. L. Pakhlova, G. Pal, B. Park, C. W. Park, H. Pedlar, T. K. Pestotnik, R. Petric, M. Piilonen, L. E. Pulvermacher, C. Rauch, J. Ritter, M. Rostomyan, A. Ryu, S. Sahoo, H. Sakai, Y. Sandilya, S. Santelj, L. Sanuki, T. Sato, Y. Savinov, V. Schlueter, T. Schneider, O. Schnell, G. Schwanda, C. Schwartz, A. J. Seino, Y. Senyo, K. Seon, O. Seong, I. S. Sevior, M. E. Shebalin, V. Shibata, T. -A. Shiu, J. -G. Shwartz, B. Simon, F. Sohn, Y. -S. Sokolov, A. Stanic, S. Staric, M. Stypula, J. Sumihama, M. Sumiyoshi, T. Takizawa, M. Tamponi, U. Teramoto, Y. Trabelsi, K. Trusov, V. Uchida, M. Uglov, T. Unno, Y. Uno, S. Urquijo, P. Usov, Y. Vanhoefer, P. Varner, G. Varvell, K. E. Vinokurova, A. Vossen, A. Wagner, M. N. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Watanabe, Y. Williams, K. M. Won, E. Yamaoka, J. Yashchenko, S. Ye, H. Yelton, J. Yuan, C. Z. Yusa, Y. Zhang, Z. P. Zhilich, V. Zhulanov, V. Zupanc, A. CA Belle Collaboration TI First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Lambda(+)(c) -> pK(+)pi(-) SO PHYSICAL REVIEW LETTERS LA English DT Article ID BELLE; SYMMETRY; DETECTOR; PHYSICS AB We report the first observation of the decay Lambda(+)(c) -> pK(+)pi(-) using a 980 fb(-1) data sample collected by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Lambda(+)(c) -> pK(+)pi(-))/B(Lambda(+)(c) -> pK(-)pi(+)) = (2.35 +/- 0.27 +/- 0.21) x 10(-3), where the uncertainties are statistical and systematic, respectively. C1 [Nisar, N. K.] Aligarh Muslim Univ, Aligarh 202002, Uttar Pradesh, India. [Schnell, G.] Univ Basque Country, UPV EHU, Bilbao 48080, Spain. [Aulchenko, V.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Vinokurova, A.; Zhilich, V.; Zhulanov, V.] Budker Inst Nucl Phys, SB RAS, Novosibirsk 630090, Russia. [Cervenkov, D.; Dolezal, Z.; Drasal, Z.; Kodys, P.] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic. [Joo, K. K.] Chonnam Natl Univ, Kwangju 660701, South Korea. [Kinoshita, K.; Pal, B.; Schwartz, A. J.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Ferber, T.; Inguglia, G.; Rostomyan, A.; Yashchenko, S.; Ye, H.] DESY, D-22607 Hamburg, Germany. [Yelton, J.] Univ Florida, Gainesville, FL 32611 USA. [Lange, J. S.; Wagner, M. N.] Univ Giessen, D-35392 Giessen, Germany. [Sumihama, M.] Gifu Univ, Gifu 5011193, Japan. [Hamer, P.] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany. [Adachi, I.; Haba, J.; Hara, T.; Itoh, R.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Uno, S.] SOKENDAI, Grad Univ Adv Studies, Hayama 2400193, Japan. [Cheon, B. G.; Goh, Y. M.; Kim, S. H.; Lee, I. S.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea. [Browder, T. E.; Jaegle, I.; Sahoo, H.; Seong, I. S.; 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.; Santelj, L.; Trabelsi, K.; Uno, S.] High Energy Accelerator Org, KEK, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan. [Schnell, G.] Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain. [Dash, N.] Indian Inst Technol, Bhubaneswar 751007, Orissa, India. [Bhuyan, B.; Nath, K. J.] Indian Inst Technol, Gauhati 781039, Assam, India. [Libby, J.; Nayak, M.] Indian Inst Technol, Madras 600036, Tamil Nadu, India. [Jacobs, W. W.; Li, H.; Vossen, A.] Indiana Univ, Bloomington, IN 47408 USA. [Wang, P.; Yuan, C. Z.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. [Schwanda, C.] Inst High Energy Phys, A-1050 Vienna, Austria. [Sokolov, A.] Inst High Energy Phys, Protvino 142281, Russia. [Mussa, R.; Tamponi, U.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Biswal, J.; Bracko, M.; Korpar, S.; Krizan, P.; Lubej, M.; Nanut, T.; Pestotnik, R.; Petric, M.; Staric, M.; Zupanc, A.] J Stefan Inst, Ljubljana 1000, Slovenia. [Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan. [Goldenzweig, P.; Grygier, J.; Pulvermacher, C.; Trusov, V.] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany. [Badhrees, I.] King Abdulaziz City Sci & Technol, Riyadh 11442, Saudi Arabia. [Cho, K.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea. [Kim, J. B.; Kim, K. T.; Moon, H. K.; Won, E.] Korea Univ, Seoul 136713, South Korea. [Niiyama, M.] Kyoto Univ, Kyoto 6068502, Japan. [Jeon, H. B.; Kang, K. H.; Kim, H. J.; Kim, M. J.; Park, H.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Krizan, P.; Zupanc, A.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia. [Kuhr, T.; Ritter, M.; Schlueter, T.] Univ Munich, Marchioninistr 15, D-80539 Munich, Germany. [Pedlar, T. K.] Luther Coll, Decorah, IA 52101 USA. [Bracko, M.; Korpar, S.; Schwartz, A. J.] Univ Maribor, SLO-2000 Maribor, Slovenia. [Chekelian, V.; Chobanova, V.; Dalseno, J.; Kiesling, C.; Gioi, L. Li; Moll, A.; Simon, F.; Vanhoefer, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Barberio, E.; Julius, T.; Li, C. H.; Sevior, M. E.; Urquijo, P.; Zupanc, A.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Chilikin, K.; Chistov, R.; Danilov, M.; Mizuk, R.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Aushev, T.; Katrenko, P.; Mizuk, R.; Pakhlova, G.; Uglov, T.] Moscow Phys Tech Inst, Dolgoprudnyi 141700, Moscow Region, Russia. [Iijima, T.; Inami, K.; Sato, Y.; Seon, O.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan. [Hayasaka, K.; Iijima, T.; Vossen, A.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan. [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. [Hou, W. -S.; Shiu, J. -G.; Wang, M. -Z.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. [Bozek, A.; Stypula, J.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland. [Miyata, H.; Seino, Y.; Yusa, Y.] Niigata Univ, Niigata 9502181, Japan. [Stanic, S.] Univ Nova Gor, Nova Gorica, Slovakia. [Aulchenko, V.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Vinokurova, A.; Zhilich, V.; Zhulanov, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia. [Nakano, E.; Teramoto, Y.] Osaka City Univ, Osaka 5588585, Japan. [Asner, D. M.; Fast, J. E.; Fulsom, B. G.; Yamaoka, J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Savinov, V.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Li, L.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Yang, S. B.; Tanida, K.; Kim, B. H.; Kim, S. K.; Olsen, S. L.; Ryu, S.] Seoul Natl Univ, Seoul 151742, South Korea. [Takizawa, M.] Showa Pharmaceut Univ, Tokyo 1948543, Japan. [Kim, D. Y.] Soongsil Univ, Seoul 156743, South Korea. [Bhardwaj, V.] Univ S Carolina, Columbia, SC 29208 USA. [Choi, Y.; Park, C. W.] Sungkyunkwan Univ, Suwon 440746, South Korea. [Bakich, A. M.; Varvell, K. E.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Badhrees, I.] Univ Tabuk, Fac Sci, Dept Phys, Tabuk 71451, Saudi Arabia. [Babu, V.; Dutta, D.; Gaur, V.; Mohanty, G. B.; Nisar, N. K.; Sandilya, S.] Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India. [Dalseno, J.; Moll, A.; Simon, F.] Tech Univ Munich, Excellence Cluster Univ, D-85748 Garching, Germany. [Greenwald, D.; Rauch, J.] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany. [Ogawa, S.] Toho Univ, Funabashi, Chiba 2748510, Japan. [Ishikawa, A.; Kato, E.; Negishi, K.; Sanuki, T.] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan. [Masuda, M.; Vossen, A.] Univ Tokyo, Earthquake Res Inst, Tokyo 1130032, Japan. [Aihara, H.] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan. [Kobayashi, N.; Shibata, T. -A.; Uchida, M.] Tokyo Inst Technol, Tokyo 1528550, Japan. [Sumiyoshi, T.] Tokyo Metropolitan Univ, Tokyo 1920397, Japan. [Tamponi, U.] Univ Turin, I-10124 Turin, Italy. [Li, Y.; Liventsev, D.; Piilonen, L. E.; Wang, X. L.; Williams, K. M.] Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA. [Bonvicini, G.; Cinabro, D.; Farhat, H.; Gillard, R.] Wayne State Univ, Detroit, MI 48202 USA. [Senyo, K.] Yamagata Univ, Yamagata 9908560, Japan. [Kwon, Y. -J.; Sohn, Y. -S.] Yonsei Univ, Seoul 120749, South Korea. RP Yang, SB (reprint author), Seoul Natl Univ, Seoul 151742, South Korea. RI Aihara, Hiroaki/F-3854-2010; Danilov, Mikhail/C-5380-2014; Uglov, Timofey/B-2406-2014; Chilikin, Kirill/B-4402-2014; Chistov, Ruslan/B-4893-2014; Mizuk, Roman/B-3751-2014; Pakhlova, Galina/C-5378-2014; Cervenkov, Daniel/D-2884-2017 OI Aihara, Hiroaki/0000-0002-1907-5964; Danilov, Mikhail/0000-0001-9227-5164; Uglov, Timofey/0000-0002-4944-1830; Chilikin, Kirill/0000-0001-7620-2053; Chistov, Ruslan/0000-0003-1439-8390; Pakhlova, Galina/0000-0001-7518-3022; Cervenkov, Daniel/0000-0002-1865-741X FU MEXT (Japan); JSPS (Japan); Nagoya's TLPRC (Japan); ARC (Australia); DIISR (Australia); FWF (Austria); NSFC (China); CCEPP (China); MSMT (Czechia); CZF (Germany); DFG (Germany); VS (Germany); DST (India); INFN (Italy); MOE (Korea); MSIP (Korea); NRF (Korea); GSDC of KISTI (Korea); BK21Plus (Korea); MNiSW (Poland); NCN (Poland); MES (Russia); RFAAE (Russia); ARRS (Slovenia); IKERBASQUE (Spain); UPV/EHU (Spain); 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); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, GSDC of KISTI, and BK21Plus (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA). NR 26 TC 4 Z9 4 U1 7 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 27 PY 2016 VL 117 IS 1 AR 011801 DI 10.1103/PhysRevLett.117.011801 PG 6 WC Physics, Multidisciplinary SC Physics GA DQ0GX UT WOS:000378878300002 PM 27419562 ER PT J AU Nixon, BT Mansouri, K Singh, A Du, J Davis, JK Lee, JG Slabaugh, E Vandavasi, VG O'Neill, H Roberts, EM Roberts, AW Yingling, YG Haigler, CH AF Nixon, B. Tracy Mansouri, Katayoun Singh, Abhishek Du, Juan Davis, Jonathan K. Lee, Jung-Goo Slabaugh, Erin Vandavasi, Venu Gopal O'Neill, Hugh Roberts, Eric M. Roberts, Alison W. Yingling, Yaroslava G. Haigler, Candace H. TI Comparative Structural and Computational Analysis Supports Eighteen Cellulose Synthases in the Plant Cellulose Synthesis Complex SO SCIENTIFIC REPORTS LA English DT Article ID PARTICLE MESH EWALD; PRIMARY-CELL WALLS; MOLECULAR-DYNAMICS; PLASMA-MEMBRANE; CATALYTIC SUBUNIT; CESA TRIMERS; MICROFIBRILS; DOMAIN; SIMULATIONS; ARABIDOPSIS AB A six-lobed membrane spanning cellulose synthesis complex (CSC) containing multiple cellulose synthase (CESA) glycosyltransferases mediates cellulose microfibril formation. The number of CESAs in the CSC has been debated for decades in light of changing estimates of the diameter of the smallest microfibril formed from the beta-1,4 glucan chains synthesized by one CSC. We obtained more direct evidence through generating improved transmission electron microscopy (TEM) images and image averages of the rosette-type CSC, revealing the frequent triangularity and average cross-sectional area in the plasma membrane of its individual lobes. Trimeric oligomers of two alternative CESA computational models corresponded well with individual lobe geometry. A six-fold assembly of the trimeric computational oligomer had the lowest potential energy per monomer and was consistent with rosette CSC morphology. Negative stain TEM and image averaging showed the triangularity of a recombinant CESA cytosolic domain, consistent with previous modeling of its trimeric nature from small angle scattering (SAXS) data. Six trimeric SAXS models nearly filled the space below an average FF-TEM image of the rosette CSC. In summary, the multifaceted data support a rosette CSC with 18 CESAs that mediates the synthesis of a fundamental microfibril composed of 18 glucan chains. C1 [Nixon, B. Tracy; Du, Juan] Penn State Univ, Dept Biochem & Mol Biol, State Coll, PA 16802 USA. [Mansouri, Katayoun; Davis, Jonathan K.; Haigler, Candace H.] N Carolina State Univ, Dept Crop Sci, Raleigh, NC 27695 USA. [Mansouri, Katayoun; Davis, Jonathan K.; Haigler, Candace H.] N Carolina State Univ, Dept Plant & Microbial Biol, Raleigh, NC 27695 USA. [Singh, Abhishek; Lee, Jung-Goo; Slabaugh, Erin; Yingling, Yaroslava G.] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA. [Vandavasi, Venu Gopal; O'Neill, Hugh] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Roberts, Eric M.] Rhode Isl Coll, Dept Biol, Providence, RI 02908 USA. [Roberts, Alison W.] Univ Rhode Isl, Dept Biol Sci, Kingston, RI 02881 USA. [Mansouri, Katayoun] Duke Univ, Cell Biol, Box 3011, Durham, NC 27710 USA. [Slabaugh, Erin] N Carolina State Univ, Dept Mol & Struct Biochem, Raleigh, NC 27695 USA. RP Nixon, BT (reprint author), Penn State Univ, Dept Biochem & Mol Biol, State Coll, PA 16802 USA.; Haigler, CH (reprint author), N Carolina State Univ, Dept Crop Sci, Raleigh, NC 27695 USA.; Haigler, CH (reprint author), N Carolina State Univ, Dept Plant & Microbial Biol, Raleigh, NC 27695 USA.; Yingling, YG (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA. EM btn1@psu.edu; yara_yingling@ncsu.edu; candace_haigler@ncsu.edu RI Singh, Abhishek/A-7206-2010; OI Singh, Abhishek/0000-0002-9450-7229; Yingling, Yaroslava/0000-0002-8557-9992; Vandavasi, Venu Gopal/0000-0002-8894-1395 FU Center for LignoCellulose Structure and Formation, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0001090] FX This work was supported as part of The Center for LignoCellulose Structure and Formation, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award # DE-SC0001090. We thank Ethan Pierce for assistance with measurements and compiling Fig. 2 and Table 1 and Zhen Zheng for help with initial particle picking. NR 58 TC 4 Z9 4 U1 9 U2 21 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 27 PY 2016 VL 6 AR 28696 DI 10.1038/srep28696 PG 14 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP4XZ UT WOS:000378501900001 PM 27345599 ER PT J AU Shahani, AJ Gulsoy, EB Poulsen, SO Xiao, XH Voorhees, PW AF Shahani, Ashwin J. Gulsoy, E. Begum Poulsen, Stefan O. Xiao, Xianghui Voorhees, Peter W. TI Twin-mediated crystal growth: an enigma resolved SO SCIENTIFIC REPORTS LA English DT Article ID ALUMINUM-SILICON ALLOYS; POLYCRYSTALLINE SILICON; GERMANIUM DENDRITES; GRAIN-BOUNDARIES; CVD DIAMOND; SI; MECHANISM; STRONTIUM; SURFACES; COPPER AB During crystal growth, faceted interfaces may be perturbed by defects, leading to a rich variety of polycrystalline growth forms. One such defect is the coherent Sigma 3 {111} twin boundary, which is widely known to catalyze crystal growth. These defects have a profound effect on the properties of many materials: for example, electron-hole recombination rates strongly depend on the character of the twin boundaries in polycrystalline Si photovoltaic cells. However, the morphology of the twinned interface during growth has long been a mystery due to the lack of four-dimensional (i.e., space and time resolved) experiments. Many controversial mechanisms have been proposed for this process, most of which lack experimental verification. Here, we probe the real-time interfacial dynamics of polycrystalline Si particles growing from an Al-Si-Cu liquid via synchrotron-based X-ray tomography. Our novel analysis of the time evolution of the interfacial normals allows us to quantify unambiguously the habit plane and grain boundary orientations during growth. This, when combined with direct measurements of the interfacial morphology provide the first confirmation of twin-mediated growth, proposed over 50 years ago. Using the insights provided by these experiments, we have developed a unified picture of the phenomena responsible for the dynamics of faceted Si growth. C1 [Shahani, Ashwin J.; Gulsoy, E. Begum; Poulsen, Stefan O.; Voorhees, Peter W.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Xiao, Xianghui] Argonne Natl Lab, Adv Photon Source, Lemont, IL 60439 USA. RP Shahani, AJ; Voorhees, PW (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. EM shahani@u.northwestern.edu; p-voorhees@northwestern.edu RI Voorhees, Peter /B-6700-2009; Gulsoy, Emine/A-1985-2011 OI Gulsoy, Emine/0000-0002-8182-2473 FU Multidisciplinary University Research Initiative (MURI) [AFOSR FA9550-12-1-0458]; NSF Graduate Research Fellowship [DGE-1324585]; DOE [DE-FG02-99ER45782]; Office of the Provost; Office for Research; Northwestern University Information Technology FX This work was supported by the Multidisciplinary University Research Initiative (MURI) under award AFOSR FA9550-12-1-0458. Additional support was provided for A. J. S. by NSF Graduate Research Fellowship under grant no. DGE-1324585. The sample preparation and data acquisition were supported by the DOE under contract no. DE-FG02-99ER45782. We thank J. Sundwall and T. Bui from the Northwestern University instrument shop for machining the Al-Si-Cu samples and the B-N sample holders, and postdoctoral scholar O. Senninger and doctoral students M. Peters and Y. Sun from Northwestern University for their help in data collection. This research utilized the Quest high performance computing facility, which is jointly supported by the Office of the Provost, the Office for Research, and Northwestern University Information Technology. NR 63 TC 2 Z9 2 U1 8 U2 13 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 27 PY 2016 VL 6 AR 28651 DI 10.1038/srep28651 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP4XO UT WOS:000378500800001 PM 27346073 ER PT J AU Carlson, LA Bai, Y Keane, SC Doudna, JA Hurley, JH AF Carlson, Lars-Anders Bai, Yun Keane, Sarah C. Doudna, Jennifer A. Hurley, James H. TI Reconstitution of selective HIV-1 RNA packaging in vitro by membrane-bound Gag assemblies SO ELIFE LA English DT Article ID NUCLEOCAPSID PROTEIN; VIRAL PARTICLES; PLASMA-MEMBRANE; CAPSID PROTEIN; MATRIX DOMAIN; GENOMIC RNA; VIRUS; BINDING; DIMERIZATION; IDENTIFICATION AB HIV-1 Gag selects and packages a dimeric, unspliced viral RNA in the context of a large excess of cytosolic human RNAs. As Gag assembles on the plasma membrane, the HIV-1 genome is enriched relative to cellular RNAs by an unknown mechanism. We used a minimal system consisting of purified RNAs, recombinant HIV-1 Gag and giant unilamellar vesicles to recapitulate the selective packaging of the 5' untranslated region of the HIV-1 genome in the presence of excess competitor RNA. Mutations in the CA-CTD domain of Gag which subtly affect the self assembly of Gag abrogated RNA selectivity. We further found that tRNA suppresses Gag membrane binding less when Gag has bound viral RNA. The ability of HIV-1 Gag to selectively package its RNA genome and its self-assembly on membranes are thus interdependent on one another. C1 [Carlson, Lars-Anders; Bai, Yun; Doudna, Jennifer A.; Hurley, James H.] Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA. [Carlson, Lars-Anders; Doudna, Jennifer A.; Hurley, James H.] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA. [Keane, Sarah C.] Howard Hughes Med Inst, Baltimore, MD USA. [Keane, Sarah C.] Univ Maryland Baltimore Cty, Dept Chem & Biochem, Baltimore, MD 21228 USA. [Doudna, Jennifer A.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Doudna, Jennifer A.; Hurley, James H.] Lawrence Berkeley Natl Lab, Mol Biophys & Integrated Bioimaging Div, Berkeley, CA USA. RP Carlson, LA; Hurley, JH (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.; Carlson, LA; Hurley, JH (reprint author), Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA.; Hurley, JH (reprint author), Lawrence Berkeley Natl Lab, Mol Biophys & Integrated Bioimaging Div, Berkeley, CA USA. EM lacarlson@berkeley.edu; jimhurley@berkeley.edu FU National Institute of Allergy and Infectious Diseases [R01A1112442]; National Institute of General Medical Sciences [P50GM082250, P50GM103297] FX National Institute of Allergy and Infectious Diseases R01A1112442 James H Hurley; National Institute of General Medical Sciences P50GM082250 Jennifer A Doudna; National Institute of General Medical Sciences P50GM103297 Sarah C Keane; The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication. NR 51 TC 3 Z9 3 U1 4 U2 6 PU ELIFE SCIENCES PUBLICATIONS LTD PI CAMBRIDGE PA SHERATON HOUSE, CASTLE PARK, CAMBRIDGE, CB3 0AX, ENGLAND SN 2050-084X J9 ELIFE JI eLife PD JUN 25 PY 2016 VL 5 AR e14663 DI 10.7554/eLife.14663 PG 19 WC Biology SC Life Sciences & Biomedicine - Other Topics GA DS6VF UT WOS:000380920400001 ER PT J AU Trojanowski, R Butcher, T Worek, M Wei, G AF Trojanowski, R. Butcher, T. Worek, M. Wei, G. TI Polymer heat exchanger design for condensing boiler applications SO APPLIED THERMAL ENGINEERING LA English DT Article DE Polymer; Heat Exchanger; Condensing; Composite; Boiler AB Condensing boilers achieve very high efficiency levels by recovering both sensible heat and water vapor latent heat from the flue gas. Research since the 1980's has focused on corrosion in such condensing heat exchangers related to the acidic condensate and material selection. Polymers in condensing heat exchangers have been considered to avoid the cost and corrosion concerns of metallic designs. Past efforts have shown that polymers offer the advantage of corrosion resistance and cost, however, lower thermal conductivity limited their application. More recent developments have introduced thermally conductive polymers which now offer promising conductivity values. This project focused on the evaluation of a thermally conductive polymer heat exchanger for this application. Computational fluid dynamic results indicated thermal conductivity values of stainless steel, a typical heat exchanger material, do not need to be achieved for similar heat transfer performance. An increase in thermal conductivity from about 10 times that of the base polymer can achieve an overall heat exchanger effectiveness similar to that achieved with stainless steel. A polymer compositethermal conductivity of approximately 2.5 W/m.K would be adequate. Thermally conductive polymer materials are now commercially available which offer values up to 20 W/m.K. In this work, one Nylon-12 and one thermally conductive polymer composite heat exchanger prototypes were constructed for a condensing boiler application. Tests demonstrated that good overall heat transfer performance was achieved. The lower thermal conductivity of the polymer heat exchanger will lead to higher surface temperatures and lower water condensation rates. (C) 2016 Elsevier Ltd. All rights reserved. C1 [Trojanowski, R.; Butcher, T.; Wei, G.] Brookhaven Natl Lab, Sustainable Energy Technol Energy Convers Grp, POB 5000, Upton, NY 11901 USA. [Worek, M.] Nexteer Automot, Saginaw, MI 48601 USA. RP Butcher, T (reprint author), Brookhaven Natl Lab, Sustainable Energy Technol Energy Convers Grp, POB 5000, Upton, NY 11901 USA. EM butcher@bnl.gov FU New York State Energy Research and Development Authority [15605]; National Oilheat Research Alliance [NF-10-07] FX This work was funded by the New York State Energy Research and Development Authority (No. 15605) and the National Oilheat Research Alliance (No. NF-10-07) and the authors greatly appreciate this support. NR 20 TC 1 Z9 1 U1 7 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-4311 J9 APPL THERM ENG JI Appl. Therm. Eng. PD JUN 25 PY 2016 VL 103 BP 150 EP 158 DI 10.1016/j.applthermaleng.2016.03.004 PG 9 WC Thermodynamics; Energy & Fuels; Engineering, Mechanical; Mechanics SC Thermodynamics; Energy & Fuels; Engineering; Mechanics GA DQ9WR UT WOS:000379560500015 ER PT J AU Li, L Parker, D Chi, MF Tsoi, GM Vohra, YK Sefat, AS AF Li, Li Parker, David Chi, Miaofang Tsoi, Georgiy M. Vohra, Yogesh K. Sefat, Athena S. TI Metallicity of Ca2Cu6P5 with single and double copper-pnictide layers SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Copper pnictide; Thermal conductivity; Superconductivity ID NEUTRON POWDER DIFFRACTION; SUPERCONDUCTOR; ELEMENTS AB We report thermodynamic and transport properties, and also theoretical calculations, for Cu-based compound Ca2Cu6P5 and compare with CaCu2-delta P2. Both materials have layers of edge-sharing copper pnictide tetrahedral CuP4, similar to Fe-As and Fe-Se layers (with FeAs4, FeSe4) in the iron-based superconductors. Despite the presence of this similar transition-metal pnictide layer, we find that both Ca2Cu6P5 and CaCu2-delta P2 have temperature-independent magnetic susceptibility and show metallic behavior with no evidence of either magnetic ordering or superconductivity down to 1.8 K CaCu2-delta P2 is slightly off-stoichiometric, with delta = 0.14. Theoretical calculations suggest that unlike Fe 3d-based magnetic materials with a large density of states (DOS) at the Fermi surface, Cu have comparatively low DOS, with the majority of the 3d spectral weight located well below Fermi level. The room-temperature resistivity value of Ca2Cu6P5 is only 9 mu Omega-cm, due to a substantial plasma frequency and an inferred electron-phonon coupling lambda of 0.073 (significantly smaller than that of metallic Cu). Also, microscopy result shows that Cu-Cu distance along the c-axis within the double layers can be very short (2.5 angstrom), even shorter than metallic elemental copper bond (2.56 angstrom). The value of d rho/dT for CaCu2-delta P2 at 300 K is approximately three times larger than in Ca2Cu6P5, which suggests the likelihood of stronger electron-phonon coupling. This study shows that the details of Cu-P layers and bonding are important for their transport characteristics. In addition, it emphasizes the remarkable character of the DOS of '122' iron-based materials, despite much structural similarities. Published by Elsevier B.V. C1 [Li, Li; Parker, David; Sefat, Athena S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Chi, Miaofang] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Tsoi, Georgiy M.; Vohra, Yogesh K.] Univ Alabama Birmingham, Dept Phys, Birmingham, AL 35294 USA. RP Li, L; Sefat, AS (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM lil2@ornl.gov; sefata@ornl.gov RI Li, Li/G-6406-2013; Chi, Miaofang/Q-2489-2015; Sefat, Athena/R-5457-2016 OI Li, Li/0000-0003-1683-8118; Chi, Miaofang/0000-0003-0764-1567; Sefat, Athena/0000-0002-5596-3504 FU U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division; ORNL's Lab-directed Research & Development (LDRD); Department of Energy - National Nuclear Security Administration [DE-NA0002014] FX This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division (A.S.S.). This study was partially funded (L.L., D.P.) by ORNL's Lab-directed Research & Development (LDRD). The electron microscopy work was performed at the ORNL's Center for Nanophase Materials Sciences (CNMS), which is an Office of Science User Facility. We finally acknowledge support from the Department of Energy - National Nuclear Security Administration under Grant No. DE-NA0002014 (Y.V., G.M.T.) for pressure measurements. NR 28 TC 2 Z9 2 U1 2 U2 26 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 25 PY 2016 VL 671 BP 334 EP 339 DI 10.1016/j.jallcom.2016.02.084 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA DG0PP UT WOS:000371767900043 ER PT J AU Avakian, H Bressan, A Contalbrigo, M AF Avakian, H. Bressan, A. Contalbrigo, M. TI Experimental results on TMDs (vol 52, 150, 2016) SO EUROPEAN PHYSICAL JOURNAL A LA English DT Correction C1 [Avakian, H.] Jefferson Lab, Newport News, VA USA. [Bressan, A.] Univ Trieste, Trieste, Italy. [Bressan, A.] Ist Nazl Fis Nucl, Trieste, Italy. [Contalbrigo, M.] Univ Ferrara, I-44100 Ferrara, Italy. [Contalbrigo, M.] Ist Nazl Fis Nucl, Ferrara, Italy. RP Bressan, A (reprint author), Univ Trieste, Trieste, Italy.; Bressan, A (reprint author), Ist Nazl Fis Nucl, Trieste, Italy. EM Andrea.Bressan@cern.ch NR 1 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 EI 1434-601X J9 EUR PHYS J A JI Eur. Phys. J. A PD JUN 24 PY 2016 VL 52 IS 6 AR 165 DI 10.1140/epja/i2016-16165-3 PG 1 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DQ1ZL UT WOS:000378999800001 ER PT J AU Kim, HI Paradela, C Sirakov, I Becker, B Capote, R Gunsing, F Kim, GN Kopecky, S Lampoudis, C Lee, YO Massarczyk, R Moens, A Moxon, M Pronyaev, VG Schillebeeckx, P Wynants, R AF Kim, H. I. Paradela, C. Sirakov, I. Becker, B. Capote, R. Gunsing, F. Kim, G. N. Kopecky, S. Lampoudis, C. Lee, Y. -O. Massarczyk, R. Moens, A. Moxon, M. Pronyaev, V. G. Schillebeeckx, P. Wynants, R. TI Neutron capture cross section measurements for U-238 in the resonance region at GELINA SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article ID COVARIANCE-MATRIX; NUCLEAR-REACTIONS; INDUCED FISSION; C6D6 DETECTORS; RANGE; SCATTERING; PARAMETERS; ENERGIES; PHYSICS; SYSTEM AB Measurements were performed at the time-of-flight facility GELINA to determine the U-238(n, gamma) cross section in the resonance region. Experiments were carried out at a 12.5 and 60m measurement station. The total energy detection principle in combination with the pulse height weighting technique was applied using C6D6 liquid scintillators as prompt gamma-ray detectors. The energy dependence of the neutron flux was measured with ionisation chambers based on the B-10(n, alpha) reaction. The data were normalised to the isolated and saturated U-238 resonance at 6.67 eV. Special procedures were applied to reduce bias effects due to the weighting function, normalization, dead time and background corrections, and corrections related to the sample properties. The total uncertainty due to the weighting function, normalization, neutron flux and sample characteristics is about 1.5%. Resonance parameters were derived from a simultaneous resonance shape analysis of the GELINA capture data and transmission data obtained previously at a 42 m and 150 m station of ORELA. The parameters of resonances below 500 eV are in good agreement with those resulting from an evaluation that was adopted in the main data libraries. Between 500 eV and 1200 eV a systematic difference in the neutron width is observed. Average capture cross section data were derived from the experimental capture yield in the energy region between 3.5 keV and 90 keV. The results are in good agreement with an evaluated cross section resulting from a least squares fit to experimental data available in the literature prior to this work. The average cross section data derived in this work were parameterised in terms of average resonance parameters and included in a least squares analysis together with other experimental data reported in the literature. C1 [Kim, H. I.; Lee, Y. -O.] Korea Atom Energy Res Inst, Nucl Data Ctr, Daejeon 34057, South Korea. [Kim, H. I.; Kim, G. N.] Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea. [Paradela, C.; Becker, B.; Kopecky, S.; Moens, A.; Schillebeeckx, P.; Wynants, R.] European Commiss, Joint Res Ctr, B-2440 Geel, Belgium. [Sirakov, I.] Inst Nucl Energy Res, BG-1784 Sofia, Bulgaria. [Capote, R.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Gunsing, F.; Lampoudis, C.] CEA Saclay, Irfu SPhN, F-91191 Gif Sur Yvette, France. [Massarczyk, R.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Moxon, M.] Hyde Copse 3, Marcham, Oxon, England. [Pronyaev, V. G.] Inst Phys & Power Engn, Obninsk, Russia. RP Schillebeeckx, P (reprint author), European Commiss, Joint Res Ctr, B-2440 Geel, Belgium. EM peter.schillebeeckx@ec.europa.eu RI Capote Noy, Roberto/M-1245-2014 OI Capote Noy, Roberto/0000-0002-1799-3438 FU European Commission through the projects ANDES [FP7-249671]; KAERI Initiative Program FX We are grateful to the GELINA operators for the dedicated and skillful running of the accelerator and to the Nuclear Data Section of the IAEA for their interest in this work. This work was supported by the European Commission through the projects ANDES (contract FP7-249671) and the CIELO project coordinated by the Nuclear Energy Agency of the OECD. It was also supported by a grant from the KAERI Initiative Program. NR 82 TC 1 Z9 1 U1 2 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 EI 1434-601X J9 EUR PHYS J A JI Eur. Phys. J. A PD JUN 24 PY 2016 VL 52 IS 6 AR 170 DI 10.1140/epja/i2016-16170-6 PG 20 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DQ1ZL UT WOS:000378999800006 ER PT J AU Henry, CS Lerma-Ortiz, C Gerdes, SY Mullen, JD Colasanti, R Zhukov, A Frelin, O Thiaville, JJ Zallot, R Niehaus, TD Hasnain, G Conrad, N Hanson, AD de Crecy-Lagard, V AF Henry, Christopher S. Lerma-Ortiz, Claudia Gerdes, Svetlana Y. Mullen, Jeffrey D. Colasanti, Ric Zhukov, Aleksey Frelin, Oceane Thiaville, Jennifer J. Zallot, Remi Niehaus, Thomas D. Hasnain, Ghulam Conrad, Neal Hanson, Andrew D. de Crecy-Lagard, Valerie TI Systematic identification and analysis of frequent gene fusion events in metabolic pathways SO BMC GENOMICS LA English DT Article DE Gene fusions; Escherichia coli; B vitamin pathways; Metabolic modeling; Essential reactions; Bottlenecks ID PROTEIN-PROTEIN INTERACTIONS; GENOME-SCALE RECONSTRUCTION; MICROBIAL GENOMES; ESCHERICHIA-COLI; BIOSYNTHESIS PATHWAY; INTERACTION NETWORKS; DATABASE; ANNOTATION; ENZYME; INTERMEDIATE AB Background: Gene fusions are the most powerful type of in silico-derived functional associations. However, many fusion compilations were made when <100 genomes were available, and algorithms for identifying fusions need updating to handle the current avalanche of sequenced genomes. The availability of a large fusion dataset would help probe functional associations and enable systematic analysis of where and why fusion events occur. Results: Here we present a systematic analysis of fusions in prokaryotes. We manually generated two training sets: (i) 121 fusions in the model organism Escherichia coli; (ii) 131 fusions found in B vitamin metabolism. These sets were used to develop a fusion prediction algorithm that captured the training set fusions with only 7 % false negatives and 50 % false positives, a substantial improvement over existing approaches. This algorithm was then applied to identify 3.8 million potential fusions across 11,473 genomes. The results of the analysis are available in a searchable database at http://modelseed.org/projects/fusions/. A functional analysis identified 3,000 reactions associated with frequent fusion events and revealed areas of metabolism where fusions are particularly prevalent. Conclusions: Customary definitions of fusions were shown to be ambiguous, and a stricter one was proposed. Exploring the genes participating in fusion events showed that they most commonly encode transporters, regulators, and metabolic enzymes. The major rationales for fusions between metabolic genes appear to be overcoming pathway bottlenecks, avoiding toxicity, controlling competing pathways, and facilitating expression and assembly of protein complexes. Finally, our fusion dataset provides powerful clues to decipher the biological activities of domains of unknown function. C1 [Henry, Christopher S.; Gerdes, Svetlana Y.; Mullen, Jeffrey D.; Colasanti, Ric; Conrad, Neal] Argonne Natl Lab, Dept Math & Comp Sci, Argonne, IL 60439 USA. [Lerma-Ortiz, Claudia; Gerdes, Svetlana Y.; Zhukov, Aleksey; Thiaville, Jennifer J.; Zallot, Remi; de Crecy-Lagard, Valerie] Univ Florida, Dept Microbiol & Cell Sci, Gainesville, FL 32611 USA. [Henry, Christopher S.] Univ Chicago, Computat Inst, Chicago, IL 60637 USA. [Frelin, Oceane; Niehaus, Thomas D.; Hasnain, Ghulam; Hanson, Andrew D.] Univ Florida, Dept Hort Sci, Gainesville, FL 32611 USA. RP Henry, CS (reprint author), Argonne Natl Lab, Dept Math & Comp Sci, Argonne, IL 60439 USA.; de Crecy-Lagard, V (reprint author), Univ Florida, Dept Microbiol & Cell Sci, Gainesville, FL 32611 USA.; Henry, CS (reprint author), Univ Chicago, Computat Inst, Chicago, IL 60637 USA. EM chenry@mcs.anl.gov; vcrecy@ufl.edu FU US National Science Foundation [MCB-1153413, MCB-1153357] FX This work was supported by the US National Science Foundation (awards no. MCB-1153413 and MCB-1153357). NR 96 TC 0 Z9 1 U1 7 U2 8 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2164 J9 BMC GENOMICS JI BMC Genomics PD JUN 24 PY 2016 VL 17 AR 473 DI 10.1186/s12864-016-2782 PG 17 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA DQ0MU UT WOS:000378894200001 PM 27342196 ER PT J AU Pattathil, S Ingwers, MW Victoriano, OL Kandemkavil, S McGuire, MA Teskey, RO Aubrey, DP AF Pattathil, Sivakumar Ingwers, Miles W. Victoriano, Olivia L. Kandemkavil, Sindhu McGuire, Mary Anne Teskey, Robert O. Aubrey, Doug P. TI Cell Wall Ultrastructure of Stem Wood, Roots, and Needles of a Conifer Varies in Response to Moisture Availability SO FRONTIERS IN PLANT SCIENCE LA English DT Article DE cell walls; glycome profiling; moisture stress; monoclonal antibodies; pectin; Pinus taeda; xylan ID PINE PINUS-TAEDA; CARBON-ISOTOPE DISCRIMINATION; LOBLOLLY-PINE; ARABIDOPSIS-THALIANA; EXTRACELLULAR-MATRIX; VASCULAR TISSUES; ELASTIC-MODULUS; DROUGHT STRESS; ABIOTIC STRESS; WATER-DEFICIT AB The composition, integrity, and architecture of the macromolecular matrix of cell walls, collectively referred to as cell wall ultrastructure, exhibits variation across species and organs and among cell types within organs. Indirect approaches have suggested that modifications to cell wall ultrastructure occur in response to abiotic stress; however, modifications have not been directly observed. Glycome profiling was used to study cell wall ultrastructure by examining variation in composition and extractability of non-cellulosic glycans in cell walls of stem wood, roots, and needles of loblolly pine saplings exposed to high and low soil moisture. Soil moisture influenced physiological processes and the overall composition and extractability of cell wall components differed as a function of soil moisture treatments. The strongest response of cell wall ultrastructure to soil moisture was increased extractability of pectic backbone epitopes in the low soil moisture treatment. The higher abundance of these pectic backbone epitopes in the oxalate extract indicate that the loosening of cell wall pectic components could be associated with the release of pectic signals as a stress response. The increased extractability of pectic backbone epitopes in response to low soil moisture availability was more pronounced in stem wood than in roots or needles. Additional responses to low soil moisture availability were observed in lignin associated carbohydrates released in chlorite extracts of stem wood, including an increased abundance of pectic arabinogalactan epitopes. Overall, these results indicate that cell walls of loblolly pine organs undergo changes in their ultrastructural composition and extractability as a response to soil moisture availability and that cell walls of the stem wood are more responsive to low soil moisture availability compared to cell walls of roots and needles. To our knowledge, this is the first direct evidence, delineated by glycomic analyses, that abiotic stress affects cell wall ultrastructure. This study is also unique in that glycome profiling of pine needles has never before been reported. C1 [Pattathil, Sivakumar; Victoriano, Olivia L.; Kandemkavil, Sindhu] Univ Georgia, Complex Carbohydrate Res Ctr, 220 Riverbend Rd, Athens, GA 30602 USA. [Ingwers, Miles W.; McGuire, Mary Anne; Teskey, Robert O.; Aubrey, Doug P.] Univ Georgia, Daniel B Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA. [Aubrey, Doug P.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC USA. RP Pattathil, S (reprint author), Univ Georgia, Complex Carbohydrate Res Ctr, 220 Riverbend Rd, Athens, GA 30602 USA. EM siva@ccrc.uga.edu OI , Sivakumar Pattathil/0000-0003-3870-4137 FU USDA National Institute of Food and Agriculture [2011-67009-30065, 201367009-21405]; Office of Biological and Environmental Research, Office of Science, United States, Department of Energy [DE-AC05-000R22725]; NSF Plant Genome Program [DBI-0421683, 108-0923992] FX This project was supported by Agriculture and Food Research Initiative Competitive Grant no. 2011-67009-30065 and 201367009-21405 from the USDA National Institute of Food and Agriculture. We also acknowledge Bio Energy Science Center (BESC) administered by Oak Ridge National Laboratory and funded by a grant (DE-AC05-000R22725) from the Office of Biological and Environmental Research, Office of Science, United States, Department of Energy. The generation of the CCRC series of plant cell wall glycan-directed monoclonal antibodies used in this work was supported by the NSF Plant Genome Program (DBI-0421683 and 108-0923992). NR 48 TC 0 Z9 0 U1 15 U2 23 PU FRONTIERS MEDIA SA PI LAUSANNE PA PO BOX 110, EPFL INNOVATION PARK, BUILDING I, LAUSANNE, 1015, SWITZERLAND SN 1664-462X J9 FRONT PLANT SCI JI Front. Plant Sci. PD JUN 24 PY 2016 VL 7 DI 10.3389/fpls.2016.00882 PG 11 WC Plant Sciences SC Plant Sciences GA DP3DO UT WOS:000378372800001 ER PT J AU He, LY Liu, XJ Huang, XG Hu, H AF He, Lianyi Liu, Xia-Ji Huang, Xu-Guang Hu, Hui TI Stoner ferromagnetism of a strongly interacting Fermi gas in the quasirepulsive regime SO PHYSICAL REVIEW A LA English DT Article ID BCS-BEC CROSSOVER; ITINERANT FERROMAGNETISM; UPPER BRANCH; DIMENSIONS; POLARONS AB Recent advances in rapidly quenched ultracold atomic Fermi gases near a Feshbach resonance have brought about a number of interesting problems in the context of observing the long-sought Stoner ferromagnetic phase transition. The possibility of experimentally obtaining a "quasirepulsive" regime in the upper branch of the energy spectrum due to the rapid quench is currently being debated, and the Stoner transition has mainly been investigated theoretically by using perturbation theory or at high polarization due to the limited theoretical approaches in the strongly repulsive regime. In this work, we present a nonperturbative theoretical approach to the quasirepulsive upper branch of a Fermi gas near a broad Feshbach resonance, and we determine the finite-temperature phase diagram for the Stoner instability. Our results agree well with the known quantum Monte Carlo simulations at zero temperature, and we recover the known virial expansion prediction at high temperature for arbitrary interaction strengths. At resonance, we find that the Stoner transition temperature becomes of the order of the Fermi temperature, around which the molecule formation rate becomes vanishingly small. This suggests a feasible way to observe Stoner ferromagnetism in the nondegenerate temperature regime. C1 [He, Lianyi] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [He, Lianyi] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [He, Lianyi] Tsinghua Univ, Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China. [Liu, Xia-Ji; Hu, Hui] Swinburne Univ Technol, Ctr Quantum & Opt Sci, Melbourne, Vic 3122, Australia. [Huang, Xu-Guang] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China. [Huang, Xu-Guang] Fudan Univ, Ctr Particle Phys & Field Theory, Shanghai 200433, Peoples R China. RP He, LY (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.; He, LY (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.; He, LY (reprint author), Tsinghua Univ, Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China. RI He, Lianyi/G-5110-2010; HU, Hui/C-6878-2009; Liu, Xia-Ji/C-6888-2009; Huang, Xu-Guang/J-4988-2014 OI He, Lianyi/0000-0002-9965-0446; HU, Hui/0000-0002-1541-1756; Liu, Xia-Ji/0000-0003-4158-5474; Huang, Xu-Guang/0000-0001-6293-4843 FU U.S. Department of Energy, Nuclear Physics Office [DE-AC02-05CH11231]; Thousand Young Talent Program in China; ARC Discovery Projects [FT130100815, DP140103231, FT140100003, DP140100637]; National Key Basic Research Special Foundation of China (NKBRSFC-China) [2011CB921502]; Shanghai Natural Science Foundation [14ZR1403000]; Fudan University [EZH1512519] FX We thank Vijay Shenoy and Tin-Lun Ho for useful discussions. L.H. was supported by the U.S. Department of Energy, Nuclear Physics Office (Contract No. DE-AC02-05CH11231) and Thousand Young Talent Program in China. H.H. and X.-J.L. were supported by the ARC Discovery Projects (Grant Nos. FT130100815, DP140103231, FT140100003 and DP140100637) and the National Key Basic Research Special Foundation of China (NKBRSFC-China) (Grant No. 2011CB921502). X.-G.H acknowledges the support from Shanghai Natural Science Foundation (Grant No. 14ZR1403000) and Fudan University (Grant No. EZH1512519). NR 61 TC 3 Z9 3 U1 3 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD JUN 24 PY 2016 VL 93 IS 6 AR 063629 DI 10.1103/PhysRevA.93.063629 PG 12 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA DP3DD UT WOS:000378371700007 ER PT J AU Haas, R Ott, CD Szilagyi, B Kaplan, JD Lippuner, J Scheel, MA Barkett, K Muhlberger, CD Dietrich, T Duez, MD Foucart, F Pfeiffer, HP Kidder, LE Teukolsky, SA AF Haas, Roland Ott, Christian D. Szilagyi, Bela Kaplan, Jeffrey D. Lippuner, Jonas Scheel, Mark A. Barkett, Kevin Muhlberger, Curran D. Dietrich, Tim Duez, Matthew D. Foucart, Francois Pfeiffer, Harald P. Kidder, Lawrence E. Teukolsky, Saul A. TI Simulations of inspiraling and merging double neutron stars using the Spectral Einstein Code SO PHYSICAL REVIEW D LA English DT Article ID ADAPTIVE MESH REFINEMENT; GRAVITATIONAL-RADIATION; GENERAL-RELATIVITY; COMPACT BINARIES; HYDRODYNAMICS; MERGERS; PERTURBATIONS; ALGORITHM; EQUATIONS; EFFICIENT AB We present results on the inspiral, merger, and postmerger evolution of a neutron star-neutron star (NSNS) system. Our results are obtained using the hybrid pseudospectral-finite volume Spectral Einstein Code (SpEC). To test our numerical methods, we evolve an equal-mass system for approximate to 22 orbits before merger. This waveform is the longest waveform obtained from fully general-relativistic simulations for NSNSs to date. Such long (and accurate) numerical waveforms are required to further improve semianalytical models used in gravitational wave data analysis, for example, the effective one body models. We discuss in detail the improvements to SpEC's ability to simulate NSNS mergers, in particular mesh refined grids to better resolve the merger and postmerger phases. We provide a set of consistency checks and compare our results to NSNS merger simulations with the independent BAM code. We find agreement between them, which increases confidence in results obtained with either code. This work paves the way for future studies using long waveforms and more complex microphysical descriptions of neutron star matter in SpEC. C1 [Haas, Roland; Dietrich, Tim] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, D-14476 Golm, Germany. [Haas, Roland; Ott, Christian D.; Szilagyi, Bela; Kaplan, Jeffrey D.; Lippuner, Jonas; Scheel, Mark A.; Barkett, Kevin] CALTECH, Walter Burke Inst Theoret Phys, TAPIR, MC 350-17,1200 E Calif Blvd, Pasadena, CA 91125 USA. [Ott, Christian D.] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 606, Japan. [Szilagyi, Bela] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA. [Muhlberger, Curran D.; Kidder, Lawrence E.; Teukolsky, Saul A.] Cornell Univ, Cornell Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA. [Duez, Matthew D.] Washington State Univ, Dept Phys & Astron, Pullman, WA 99164 USA. [Foucart, Francois; Pfeiffer, Harald P.] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada. [Foucart, Francois] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Haas, R (reprint author), Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, D-14476 Golm, Germany. OI Lippuner, Jonas/0000-0002-5936-3485 FU NSF [PHY-1068881, PHY-1151197, PHY-1306125, PHY-1404569, PHY-1402916, AST-1205732, AST-1333129, AST-1333520]; Alfred P. Sloan Foundation; Max-Planck Society; Sherman Fairchild Foundation; International Research Unit of Advanced Future Studies, Kyoto University; NASA through Einstein Postdoctoral Fellowship Grant [PF4-150122]; Chandra X-ray Center; NASA [NAS803060]; NSF MRI [PHY-0960291, loni_numre107, TG-PHY990007N, TG-PHY100033] FX We acknowledge helpful discussions with Sebastiano Bernuzzi, Michael Boyle [123], Alessandra Buonanno, M. Brett Deaton, Sarah Gossan, Tanja Hinderer, Kenta Kiuchi, Luis Lehner, Geoffrey Lovelace, Maria Okounkova, David Radice, Jocelyn Read, Masaru Shibata, Nick Tacik, and members of our Simulating eXtreme Spacetimes (SXS) collaboration (http://www.black-holes.org). This research is partially supported by NSF Grants No. PHY-1068881, No. CAREER PHY-1151197, No. PHY-1306125, No. PHY-1404569, No. PHY-1402916, No. AST-1205732, No. AST-1333129, and No. AST-1333520; by the Alfred P. Sloan Foundation; by the Max-Planck Society; by the Sherman Fairchild Foundation; and by the International Research Unit of Advanced Future Studies, Kyoto University. Support for F.F. was provided by NASA through Einstein Postdoctoral Fellowship Grant No. PF4-150122 awarded by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for NASA under Contract No. NAS803060. The simulations were performed on the Caltech compute cluster Zwicky (NSF MRI Grant No. PHY-0960291), on the Datura cluster of the AEI, on machines of the Louisiana Optical Network Initiative under Grant No. loni_numre107, and on Stampede at TACC under NSF XSEDE allocations No. TG-PHY990007N and No. TG-PHY100033. All 2D graphs were generated with the PYTHON-based MATPLOTLIB [124] and IPYTHON [125] packages. VISIT [126,127] was used for 3D and 2D sliced plots. This paper has been assigned Yukawa Institute for Theoretical Physics Report No. YITP-16-39. NR 134 TC 4 Z9 4 U1 0 U2 1 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 24 PY 2016 VL 93 IS 12 AR 124062 DI 10.1103/PhysRevD.93.124062 PG 23 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP3ET UT WOS:000378376200005 ER PT J AU Gong, C Tochitsky, SY Fiuza, F Pigeon, JJ Joshi, C AF Gong, Chao Tochitsky, Sergei Ya Fiuza, Frederico Pigeon, Jeremy J. Joshi, Chan TI Plasma dynamics near critical density inferred from direct measurements of laser hole boring SO PHYSICAL REVIEW E LA English DT Article ID OVERDENSE PLASMAS; ABSORPTION; IGNITION; FUSION AB We have used multiframe picosecond optical interferometry to make direct measurements of the hole boring velocity, nu(HB), of the density cavity pushed forward by a train of CO2 laser pulses in a near critical density helium plasma. As the pulse train intensity rises, the increasing radiation pressure of each pulse pushes the density cavity forward and the plasma electrons are strongly heated. After the peak laser intensity, the plasma pressure exerted by the heated electrons strongly impedes the hole boring process and the nu(HB) falls rapidly as the laser pulse intensity falls at the back of the laser pulse train. A heuristic theory is presented that allows the estimation of the plasma electron temperature from the measurements of the hole boring velocity. The measured values of nu(HB), and the estimated values of the heated electron temperature as a function of laser intensity are in reasonable agreement with those obtained from two-dimensional numerical simulations. C1 [Gong, Chao; Tochitsky, Sergei Ya; Pigeon, Jeremy J.; Joshi, Chan] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. [Fiuza, Frederico] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Fiuza, Frederico] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Tochitsky, SY (reprint author), Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. EM sergei12@ucla.edu FU DOE [DE-SC0010064]; NNSA [DE-NA0002950]; Lawrence Fellowship (LLNL); SLAC under the DOE LDRD program FX Work at UCLA was supported by DOE Contract No. DE-SC0010064 and NNSA Grant No. DE-NA0002950. Simulations were performed on the supercomputers Mira (through INCITE) and Vulcan (through LLNL Grand Challenge). F.F. was supported by the Lawrence Fellowship (LLNL) and by SLAC under the DOE LDRD program. The authors acknowledge the OSIRIS Consortium, consisting of UCLA and IST (Portugal) for the use of the OSIRIS 3.0 framework and the VISXD framework. NR 30 TC 0 Z9 0 U1 5 U2 5 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 24 PY 2016 VL 93 IS 6 AR 061202 DI 10.1103/PhysRevE.93.061202 PG 6 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA DP3EX UT WOS:000378376600002 PM 27415200 ER PT J AU Liu, GK Kaushal, N Li, SZ Bishop, CB Wang, Y Johnston, S Alvarez, G Moreo, A Dagotto, E AF Liu, Guangkun Kaushal, Nitin Li, Shaozhi Bishop, Christopher B. Wang, Yan Johnston, Steve Alvarez, Gonzalo Moreo, Adriana Dagotto, Elbio TI Orbital-selective Mott phases of a one-dimensional three-orbital Hubbard model studied using computational techniques SO PHYSICAL REVIEW E LA English DT Article ID DENSITY-MATRIX RENORMALIZATION; MONTE-CARLO METHOD; PAIRING CORRELATIONS; IRON CHALCOGENIDES; FERMION SYSTEMS; SUPERCONDUCTORS; STATES; SEPARATION; PNICTIDES AB A recently introduced one-dimensional three-orbital Hubbard model displays orbital-selective Mott phases with exotic spin arrangements such as spin block states [J. Rincon et al., Phys. Rev. Lett. 112, 106405 (2014)]. In this publication we show that the constrained-path quantum Monte Carlo (CPQMC) technique can accurately reproduce the phase diagram of this multiorbital one-dimensional model, paving the way to future CPQMC studies in systems with more challenging geometries, such as ladders and planes. The success of this approach relies on using the Hartree-Fock technique to prepare the trial states needed in CPQMC. We also study a simplified version of the model where the pair-hopping term is neglected and the Hund coupling is restricted to its Ising component. The corresponding phase diagrams are shown to be only mildly affected by the absence of these technically difficult-to-implement terms. This is confirmed by additional density matrix renormalization group and determinant quantum Monte Carlo calculations carried out for the same simplified model, with the latter displaying only mild fermion sign problems. We conclude that these methods are able to capture quantitatively the rich physics of the several orbital-selective Mott phases (OSMP) displayed by this model, thus enabling computational studies of the OSMP regime in higher dimensions, beyond static or dynamic mean-field approximations. C1 [Liu, Guangkun; Kaushal, Nitin; Li, Shaozhi; Bishop, Christopher B.; Wang, Yan; Johnston, Steve; Moreo, Adriana; Dagotto, Elbio] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Liu, Guangkun] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. [Kaushal, Nitin; Bishop, Christopher B.; Moreo, Adriana; Dagotto, Elbio] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Alvarez, Gonzalo] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Alvarez, Gonzalo] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. RP Liu, GK (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. OI Liu, Guangkun/0000-0002-2644-940X FU National Science Foundation (NSF) [DMR-1404375]; China Scholarship Council; U.S. Department of Energy (DOE), Office of Basic Energy Science (BES), Materials Science and Engineering Division; Center for Nanophase Materials Sciences - DOE; DOE early career research program; University of Tennessee's Science Alliance Joint Directed Research and Development (JDRD) program; Oak Ridge National Laboratory; University of Tennessee; Oak Ridge National Laboratory's Joint Institute for Computational Sciences and resources of the National Energy Research Scientific Computing Center (NERSC); DOE Office of Science User Facility FX G.L. thanks Shuhua Liang, Julian Rincon, and Qinlong Luo for insightful discussions. G.L., N.K., C.B., A.M., and E.D. were supported by the National Science Foundation (NSF) under Grant No. DMR-1404375. G.L. was also supported by the China Scholarship Council. G.L., N.K., and C.B. were also partially supported by the U.S. Department of Energy (DOE), Office of Basic Energy Science (BES), Materials Science and Engineering Division. G.A. was supported by the Center for Nanophase Materials Sciences, sponsored by DOE, and the DOE early career research program. Y.W., S.L., and S.J. were supported by the University of Tennessee's Science Alliance Joint Directed Research and Development (JDRD) program, a collaboration with Oak Ridge National Laboratory. The DQMC calculations used computational resources supported by the University of Tennessee and Oak Ridge National Laboratory's Joint Institute for Computational Sciences and resources of the National Energy Research Scientific Computing Center (NERSC), a DOE Office of Science User Facility. NR 64 TC 1 Z9 1 U1 2 U2 2 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 24 PY 2016 VL 93 IS 6 AR 063313 DI 10.1103/PhysRevE.93.063313 PG 11 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA DP3EX UT WOS:000378376600011 PM 27415393 ER PT J AU Molvig, K Schmitt, MJ Albright, BJ Dodd, ES Hoffman, NM McCall, GH Ramsey, SD AF Molvig, Kim Schmitt, Mark J. Albright, B. J. Dodd, E. S. Hoffman, N. M. McCall, G. H. Ramsey, S. D. TI Low Fuel Convergence Path to Direct-Drive Fusion Ignition SO PHYSICAL REVIEW LETTERS LA English DT Article ID TARGETS; FACILITY; PHYSICS AB A new class of inertial fusion capsules is presented that combines multishell targets with laser direct drive at low intensity (2.8 x 10(14) W/cm(2)) to achieve robust ignition. The targets consist of three concentric, heavy, metal shells, enclosing a volume of tens of mu g of liquid deuterium-tritium fuel. Ignition is designed to occur well "upstream" from stagnation, with minimal pusher deceleration to mitigate interface Rayleigh-Taylor growth. Laser intensities below thresholds for laser plasma instability and cross beam energy transfer facilitate high hydrodynamic efficiency (similar to 10%). C1 [Molvig, Kim; Schmitt, Mark J.; Albright, B. J.; Dodd, E. S.; Hoffman, N. M.; McCall, G. H.; Ramsey, S. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Molvig, Kim] MIT, Cambridge, MA 02139 USA. RP Molvig, K (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.; Molvig, K (reprint author), MIT, Cambridge, MA 02139 USA. OI Albright, Brian/0000-0002-7789-6525; Schmitt, Mark/0000-0002-0197-9180 FU Los Alamos National Laboratory [DE-AC52-06NA25396]; U.S. Department of Energy by Los Alamos National Security, LLC FX The authors acknowledge useful discussions with R. C. Kirkpatrick, J. Mercer-Smith, D. J. Shirk, R. Betti, and E. M. Campbell. Work performed under the auspices of the U.S. Department of Energy by the Los Alamos National Security, LLC, Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. NR 20 TC 1 Z9 1 U1 3 U2 3 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 2016 VL 116 IS 25 AR 255003 DI 10.1103/PhysRevLett.116.255003 PG 5 WC Physics, Multidisciplinary SC Physics GA DP3FC UT WOS:000378377100005 PM 27391731 ER PT J AU Rau, JG Wu, LS May, AF Poudel, L Winn, B Garlea, VO Huq, A Whitfield, P Taylor, AE Lumsden, MD Gingras, MJP Christianson, AD AF Rau, J. G. Wu, L. S. May, A. F. Poudel, L. Winn, B. Garlea, V. O. Huq, A. Whitfield, P. Taylor, A. E. Lumsden, M. D. Gingras, M. J. P. Christianson, A. D. TI Anisotropic Exchange within Decoupled Tetrahedra in the Quantum Breathing Pyrochlore Ba3Yb2Zn5O11 SO PHYSICAL REVIEW LETTERS LA English DT Article ID CRYSTAL-STRUCTURE; ANTIFERROMAGNET; TRANSITION; LIQUIDS; SYSTEMS; LATTICE AB The low energy spin excitation spectrum of the breathing pyrochlore Ba3Yb2Zn5O11 has been investigated with inelastic neutron scattering. Several nearly resolution limited modes with no observable dispersion are observed at 250 mK while, at elevated temperatures, transitions between excited levels become visible. To gain deeper insight, a theoretical model of isolated Yb3+ tetrahedra parametrized by four anisotropic exchange constants is constructed. The model reproduces the inelastic neutron scattering data, specific heat, and magnetic susceptibility with high fidelity. The fitted exchange parameters reveal a Heisenberg antiferromagnet with a very large Dzyaloshinskii-Moriya interaction. Using this model, we predict the appearance of an unusual octupolar paramagnet at low temperatures and speculate on the development of intertetrahedron correlations. C1 [Rau, J. G.; Gingras, M. J. P.] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. [Wu, L. S.; Poudel, L.; Winn, B.; Garlea, V. O.; Taylor, A. E.; Lumsden, M. D.; Christianson, A. D.] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA. [May, A. F.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Poudel, L.; Christianson, A. D.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37966 USA. [Huq, A.; Whitfield, P.] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. [Gingras, M. J. P.] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada. [Gingras, M. J. P.] Canadian Inst Adv Res, 180 Dundas St West,Suite 1400, Toronto, ON M5G IZ8, Canada. RP Rau, JG (reprint author), Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. EM jeff.rau@uwaterloo.ca; wul1@ornl.gov RI May, Andrew/E-5897-2011; BL18, ARCS/A-3000-2012; Whitfield, Pamela/P-1885-2015; Huq, Ashfia/J-8772-2013; Wu, Liusuo/A-5611-2016; christianson, andrew/A-3277-2016; Lumsden, Mark/F-5366-2012 OI May, Andrew/0000-0003-0777-8539; Whitfield, Pamela/0000-0002-6569-1143; Huq, Ashfia/0000-0002-8445-9649; Wu, Liusuo/0000-0003-0103-5267; christianson, andrew/0000-0003-3369-5884; Lumsden, Mark/0000-0002-5472-9660 FU U.S. DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division; NSERC of Canada; Canada Research Chair program; Canadian Foundation for Advanced Research; Perimeter Institute (PI) for Theoretical Physics; Government of Canada through Industry Canada; Province of Ontario through Ministry of Economic Development and Innovation FX We thank J. Y. Y. Lin for the help with the data reduction. A. D. C., M. D. L., and L. S. W. thank A. Chernyshev, P. Maksimov, G. Ehlers, and I. Zaliznyak for the useful discussions. We thank K. Kimura and S. Nakatsuji for kindly providing their data from Ref. [33]. This research used resources at the Spallation Neutron Source, a Department of Energy (DOE) Office of Science User Facility operated by Oak Ridge National Laboratory (ORNL). A. F. M. was supported by the U.S. DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. L. S. W. was supported by the Laboratory Directed Research and Development Program of ORNL, managed by UT-Battelle, LLC, for the U.S. DOE. The work at the University of Waterloo was supported by the NSERC of Canada, the Canada Research Chair program (M. J. P. G., Tier 1), the Canadian Foundation for Advanced Research and the Perimeter Institute (PI) for Theoretical Physics. Research at the PI is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Economic Development and Innovation. NR 55 TC 4 Z9 4 U1 10 U2 16 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 2016 VL 116 IS 25 AR 257204 DI 10.1103/PhysRevLett.116.257204 PG 6 WC Physics, Multidisciplinary SC Physics GA DP3FC UT WOS:000378377100006 PM 27391749 ER PT J AU Martin, T Moussay, S Bulla, I Bulla, J Toupet, M Etard, O Denise, P Davenne, D Coquerel, A Quarck, G AF Martin, Tristan Moussay, Sebastien Bulla, Ingo Bulla, Jan Toupet, Michel Etard, Olivier Denise, Pierre Davenne, Damien Coquerel, Antoine Quarck, Gaelle TI Exploration of Circadian Rhythms in Patients with Bilateral Vestibular Loss SO PLOS ONE LA English DT Article ID BREAKFAST INTAKE PRIOR; BRIGHT LIGHT; MORNINGNESS-EVENINGNESS; INDIVIDUAL-DIFFERENCES; SLEEP PARAMETERS; WAKING TIME; NIGHT WORK; PERFORMANCE; ACTIGRAPHY; SYSTEM AB Background New insights have expanded the influence of the vestibular system to the regulation of circadian rhythmicity. Indeed, hypergravity or bilateral vestibular loss (BVL) in rodents causes a disruption in their daily rhythmicity for several days. The vestibular system thus influences hypothalamic regulation of circadian rhythms on Earth, which raises the question of whether daily rhythms might be altered due to vestibular pathology in humans. The aim of this study was to evaluate human circadian rhythmicity in people presenting a total bilateral vestibular loss (BVL) in comparison with control participants. Methodology and Principal Findings Nine patients presenting a total idiopathic BVL and 8 healthy participants were compared. Their rest-activity cycle was recorded by actigraphy at home over 2 weeks. The daily rhythm of temperature was continuously recorded using a telemetric device and salivary cortisol was recorded every 3 hours from 6:00 AM to 9:00 PM over 24 hours. BVL patients displayed a similar rest activity cycle during the day to control participants but had higher nocturnal actigraphy, mainly during weekdays. Sleep efficiency was reduced in patients compared to control participants. Patients had a marked temperature rhythm but with a significant phase advance (73 min) and a higher variability of the acrophase (from 2:24 PM to 9:25 PM) with no correlation to rest-activity cycle, contrary to healthy participants. Salivary cortisol levels were higher in patients compared to healthy people at any time of day. Conclusion We observed a marked circadian rhythmicity of temperature in patients with BVL, probably due to the influence of the light dark cycle. However, the lack of synchronization between the temperature and rest-activity cycle supports the hypothesis that the vestibular inputs are salient input to the circadian clock that enhance the stabilization and precision of both external and internal entrainment. C1 [Martin, Tristan; Moussay, Sebastien; Denise, Pierre; Davenne, Damien; Coquerel, Antoine; Quarck, Gaelle] UNICAEN, COMETE, F-14032 Caen, France. [Martin, Tristan; Moussay, Sebastien; Denise, Pierre; Davenne, Damien; Coquerel, Antoine; Quarck, Gaelle] INSERM, U1075, F-14032 Caen, France. [Martin, Tristan; Moussay, Sebastien; Etard, Olivier; Denise, Pierre; Davenne, Damien; Coquerel, Antoine; Quarck, Gaelle] Normandie Univ, Caen, France. [Etard, Olivier; Denise, Pierre] CHU Caen, Serv Explorat Fonctionnelles, F-14000 Caen, France. [Toupet, Michel] Ctr Explorat Fonctionnelles Otoneurol, 10 Rue Falguiere, F-75015 Paris, France. [Coquerel, Antoine] CHU Caen, Lab Pharmacol Toxicol, F-14000 Caen, France. [Bulla, Ingo] Los Alamos Natl Lab, Theoret Biol & Biophys, Grp T6, Los Alamos, NM USA. [Bulla, Ingo] Ernst Moritz Arndt Univ Greifswald, Inst Math & Informat, Walther Rathenau Str 47, D-17487 Greifswald, Germany. [Bulla, Jan] Univ Bergen, Dept Math, POB 7800, N-5020 Bergen, Norway. RP Martin, T (reprint author), UNICAEN, COMETE, F-14032 Caen, France.; Martin, T (reprint author), INSERM, U1075, F-14032 Caen, France.; Martin, T (reprint author), Normandie Univ, Caen, France. EM tristan.martin61@gmail.com FU Basse-Normandie region-Emergence Program Grant [11P03919/11P03921] FX This work was supported by Basse-Normandie region-Emergence Program Grant 11P03919/11P03921. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 85 TC 1 Z9 1 U1 2 U2 2 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 2016 VL 11 IS 6 AR e0155067 DI 10.1371/journal.pone.0155067 PG 20 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP3KZ UT WOS:000378393600001 PM 27341473 ER PT J AU Guo, W Garfinkel, DA Tucker, JD Haley, D Young, GA Poplawsky, JD AF Guo, Wei Garfinkel, David A. Tucker, Julie D. Haley, Daniel Young, George A. Poplawsky, Jonathan D. TI An atom probe perspective on phase separation and precipitation in duplex stainless steels SO NANOTECHNOLOGY LA English DT Article DE atom probe tomography; thermal embrittlement; Cu cluster; G-phase; Fe-Cr alloy; phase separation ID FE-CR ALLOYS; SPINODAL DECOMPOSITION; COMPUTER-MODELS; RPV STEELS; TOMOGRAPHY; LEVEL; EMBRITTLEMENT; TEMPERATURE AB Three-dimensional chemical imaging of Fe-Cr alloys showing Fe-rich (alpha)/Cr-rich (alpha') phase separation is reported using atom probe tomography techniques. The extent of phase separation, i.e., amplitude and wavelength, has been quantitatively assessed using the Langer-Bar-on-Miller, proximity histogram, and autocorrelation function methods for two separate Fe-Cr alloys, designated 2101 and 2205. Although the 2101 alloy possesses a larger wavelength and amplitude after annealing at 427 degrees C for 100-10 000 h, it exhibits a lower hardness than the 2205 alloy. In addition to this phase separation, ultra-fine Ni-Mn-Si-Cu-rich G-phase precipitates form at the alpha/alpha' interfaces in both alloys. For the 2101 alloy, Cu clusters act to form a nucleus, around which a Ni-Mn-Si shell develops during the precipitation process. For the 2205 alloy, the Ni and Cu atoms enrich simultaneously and no core-shell chemical distribution was found. This segregation phenomenon may arise from the exact Ni/Cu ratio inside the ferrite. After annealing for 10 000 h, the number density of the G-phase within the 2205 alloy was found to be roughly one order of magnitude higher than in the 2101 alloy. The G-phase precipitates have an additional deleterious effect on the thermal embrittlement, as evaluated by the Ashby-Orowan equation, which explains the discrepancy between the hardness and the rate of phase separation with respect to annealing time. C1 [Guo, Wei; Poplawsky, Jonathan D.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. [Garfinkel, David A.; Tucker, Julie D.] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA. [Haley, Daniel] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England. [Young, George A.] Knolls Atom Power Lab, Schenectady, NY USA. RP Guo, W (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. EM wguo2007@gmail.com; poplawskyjd@ornl.gov OI Haley, Daniel/0000-0001-9308-2620 FU ORNL's Center for Nanophase Materials Sciences (CNMS), DOE Office of Science User Facility FX The authors thank Dr Hongbin Bei at Oak Ridge National Laboratory, Rosalia Rementeria at CENIM, and Ty Prosa at CAMECA Madison for fruitful discussions. This research was supported by ORNL's Center for Nanophase Materials Sciences (CNMS), which is a DOE Office of Science User Facility. NR 30 TC 4 Z9 4 U1 13 U2 28 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 24 PY 2016 VL 27 IS 25 AR 254004 DI 10.1088/0957-4484/27/25/254004 PG 12 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA DN4VB UT WOS:000377064200005 PM 27181108 ER PT J AU Gehlot, HS Ardley, J Tak, N Tian, R Poonar, N Meghwal, RR Rathi, S Tiwari, R Adnawani, W Seshadri, R Reddy, TBK Pati, A Woyke, T Pillay, M Markowitz, V Baeshen, MN Al-Hejin, AM Ivanova, N Kyrpides, N Reeve, W AF Gehlot, Hukam Singh Ardley, Julie Tak, Nisha Tian, Rui Poonar, Neetu Meghwal, Raju R. Rathi, Sonam Tiwari, Ravi Adnawani, Wan Seshadri, Rekha Reddy, T. B. K. Pati, Amrita Woyke, Tanja Pillay, Manoj Markowitz, Victor Baeshen, Mohammed N. Al-Hejin, Ahmed M. Ivanova, Natalia Kyrpides, Nikos Reeve, Wayne TI High-quality permanent draft genome sequence of Ensifer sp PC2, isolated from a nitrogen-fixing root nodule of the legume tree (Khejri) native to the Thar Desert of India SO STANDARDS IN GENOMIC SCIENCES LA English DT Article DE Root-nodule bacteria; Nitrogen fixation; Symbiosis; Ensifer; Prosopis ID LEGUMINOSAE-SUBFAM-MIMOSOIDEAE; SP-NOV; MICROBIAL GENOMES; PROSOPIS-ALBA; BACTERIA; RHIZOBIA; SYSTEM; SOILS; DIVERSIFICATION; IDENTIFICATION AB Ensifer sp. PC2 is an aerobic, motile, Gram-negative, non-spore-forming rod that was isolated from a nitrogen-fixing nodule of the tree legume P. cineraria (L.) Druce (Khejri), which is a keystone species that grows in arid and semi-arid regions of the Indian Thar desert. Strain PC2 exists as a dominant saprophyte in alkaline soils of Western Rajasthan. It is fast growing, well-adapted to arid conditions and is able to form an effective symbiosis with several annual crop legumes as well as species of mimosoid trees and shrubs. Here we describe the features of Ensifer sp. PC2, together with genome sequence information and its annotation. The 8,458,965 bp high-quality permanent draft genome is arranged into 171 scaffolds of 171 contigs containing 8,344 protein-coding genes and 139 RNA-only encoding genes, and is one of the rhizobial genomes sequenced as part of the DOE Joint Genome Institute 2010 Genomic Encyclopedia for Bacteria and Archaea-Root Nodule Bacteria (GEBA-RNB) project proposal. C1 [Gehlot, Hukam Singh; Tak, Nisha; Poonar, Neetu; Meghwal, Raju R.; Rathi, Sonam] JN Vyas Univ, Dept Bot, BNF & Stress Biol Lab, Jodhpur 342001, Rajasthan, India. [Ardley, Julie; Tian, Rui; Tiwari, Ravi; Adnawani, Wan; Reeve, Wayne] Murdoch Univ, Ctr Studies, Murdoch, WA, Australia. [Seshadri, Rekha; Reddy, T. B. K.; Pati, Amrita; Woyke, Tanja; Ivanova, Natalia; Kyrpides, Nikos] DOE Joint Genome Inst, Walnut Creek, CA USA. [Pillay, Manoj; Markowitz, Victor] Lawrence Berkeley Natl Lab, Biol Data Management & Technol Ctr, Berkeley, CA USA. [Baeshen, Mohammed N.; Al-Hejin, Ahmed M.; Kyrpides, Nikos] King Abdulaziz Univ, Dept Biol Sci, Fac Sci, Jeddah, Saudi Arabia. RP Reeve, W (reprint author), Murdoch Univ, Ctr Studies, Murdoch, WA, Australia. EM W.Reeve@murdoch.edu.au RI Kyrpides, Nikos/A-6305-2014; Fac Sci, KAU, Biol Sci Dept/L-4228-2013; OI Kyrpides, Nikos/0000-0002-6131-0462; Ivanova, Natalia/0000-0002-5802-9485 FU University of California, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Center of Nanotechnology at King Abdulaziz University; University Grant Commission, New Delhi, India for UGC-SAPII-CAS-I, UGC-BSR Research StartUp- Grant [F.30-16/2014-BSR]; Department of Biotechnology, Govt. of India [BT/PR11461/ AGR/21/270/2008]; Crawford Fund Award-ATSE, Australia FX This work was performed under the auspices of the US Department of Energy's Office of Science, Biological and Environmental Research Program, and by the University of California, Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231. We thank Gordon Thomson (Murdoch University) for the preparation of SEM and TEM photos. We would also like to thank the Center of Nanotechnology at King Abdulaziz University for their support and acknowledge King Abdulaziz University Vice President for Educational Affairs Prof. Abdulrahman O. Alyoubi for his support. We sincerely acknowledge funding received from University Grant Commission, New Delhi, India for UGC-SAPII-CAS-I, UGC-BSR Research StartUp- Grant (F.30-16/2014-BSR); Department of Biotechnology, Govt. of India (BT/PR11461/ AGR/21/270/2008). We also thank the Crawford Fund Award-ATSE, Australia for funding HG and NT to conduct research at the CRS. NR 58 TC 1 Z9 1 U1 2 U2 2 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1944-3277 J9 STAND GENOMIC SCI JI Stand. Genomic Sci. PD JUN 23 PY 2016 VL 11 AR 43 DI 10.1186/s40793-016-0157-7 PG 8 WC Genetics & Heredity; Microbiology SC Genetics & Heredity; Microbiology GA DW8PJ UT WOS:000383917700001 PM 27340511 ER PT J AU Gao, J Zhang, H Zhu, HX AF Gao, Jun Zhang, Hao Zhu, Hua Xing TI Diphoton excess at 750 GeV: gluon-gluon fusion or quark-antiquark annihilation? SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID TRANSVERSE-MOMENTUM DISTRIBUTIONS; LEPTON PAIRS; HIGGS-BOSON; LHC; RESUMMATION; RESONANCE; SPECTRUM; Q(T); QCD AB Recently, ATLAS and CMS collaborations reported an excess in the measurement of diphoton events, which can be explained by a new resonance with a mass around 750 GeV. In this work, we explored the possibility of identifying if the hypothetical new resonance is produced through gluon-gluon fusion or quark-antiquark annihilation, or tagging the beam. Three different observables for beam tagging, namely the rapidity and transverse-momentum distribution of the diphoton, and one tagged bottom-jet cross section, are proposed. Combining the information gained from these observables, a clear distinction of the production mechanism for the diphoton resonance is promising. C1 [Gao, Jun] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Zhang, Hao] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Zhu, Hua Xing] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. RP Gao, J (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. EM jgao@anl.gov; zhanghao@physics.ucsb.edu; zhuhx@mit.edu RI Gao, Jun/C-9777-2017 FU U.S. DOE [DE-SC0011702]; U.S. Department of Energy [DE-SC0011090, DE-AC02-06CH11357] FX We thank Yotam Soreq and Wei Xue for helpful conversations. The work of H.Z. is supported by the U.S. DOE under Contract No. DE-SC0011702. The work of H.X.Z. is supported by the U.S. Department of Energy under grant Contract Number DE-SC0011090. Work at ANL is supported in part by the U.S. Department of Energy under Contract No. DE-AC02-06CH11357. H.Z. is pleased to recognize the hospitality of the service offered by the Amtrak California Zephyr train. NR 140 TC 7 Z9 7 U1 1 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6044 EI 1434-6052 J9 EUR PHYS J C JI Eur. Phys. J. C PD JUN 23 PY 2016 VL 76 IS 6 AR 348 DI 10.1140/epjc/s10052-016-4200-z PG 11 WC Physics, Particles & Fields SC Physics GA DQ1ZG UT WOS:000378999300003 ER PT J AU Fei, Q O'Brien, M Nelson, R Chen, XW Lowell, A Dowe, N AF Fei, Qiang O'Brien, Marykate Nelson, Robert Chen, Xiaowen Lowell, Andrew Dowe, Nancy TI Enhanced lipid production by Rhodosporidium toruloides using different fed-batch feeding strategies with lignocellulosic hydrolysate as the sole carbon source SO BIOTECHNOLOGY FOR BIOFUELS LA English DT Article DE Lignocellulosic hydrolysates; Lipid production; Fed-batch feeding strategy; Rhodosporidium toruloides; Automated online sugar control system ID YEAST CRYPTOCOCCUS-CURVATUS; CELL-DENSITY CULTIVATION; FATTY-ACID-COMPOSITION; ENZYMATIC-HYDROLYSIS; LIPOMYCES-STARKEYI; BIODIESEL FUEL; CETANE NUMBER; CULTURE; PRETREATMENT; FERMENTATION AB Background: Industrial biotechnology that is able to provide environmentally friendly bio-based products has attracted more attention in replacing petroleum-based industries. Currently, most of the carbon sources used for fermentation-based bioprocesses are obtained from agricultural commodities that are used as foodstuff for human beings. Lignocellulose-derived sugars as the non-food, green, and sustainable alternative carbon sources have great potential to avoid this dilemma for producing the renewable, bio-based hydrocarbon fuel precursors, such as microbial lipid. Efficient bioconversion of lignocellulose-based sugars into lipids is one of the critical parameters for industrial application. Therefore, the fed-batch cultivation, which is a common method used in industrial applications, was investigated to achieve a high cell density culture along with high lipid yield and productivity. Results: In this study, several fed-batch strategies were explored to improve lipid production using lignocellulosic hydrolysates derived from corn stover. Compared to the batch culture giving a lipid yield of 0.19 g/g, the dissolved-oxygen-stat feeding mode increased the lipid yield to 0.23 g/g and the lipid productivity to 0.33 g/L/h. The pulse feeding mode further improved lipid productivity to 0.35 g/L/h and the yield to 0.24 g/g. However, the highest lipid yield (0.29 g/g) and productivity (0.4 g/L/h) were achieved using an automated online sugar control feeding mode, which gave a dry cell weight of 54 g/L and lipid content of 59 % (w/w). The major fatty acids of the lipid derived from lignocellulosic hydrolysates were predominately palmitic acid and oleic acid, which are similar to those of conventional oilseed plants. Conclusions: Our results suggest that the fed-batch feeding strategy can strongly influence the lipid production. The online sugar control feeding mode was the most appealing strategy for high cell density, lipid yield, and lipid productivity using lignocellulosic hydrolysates as the sole carbon source. C1 [Fei, Qiang] Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian 710049, Peoples R China. [Fei, Qiang; O'Brien, Marykate; Nelson, Robert; Chen, Xiaowen; Lowell, Andrew; Dowe, Nancy] Natl Renewable Energy Lab, Natl Bioenergy Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. [Lowell, Andrew] KBI Biopharma, 2500 Cent Ave, Boulder, CO 80301 USA. RP Fei, Q (reprint author), Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian 710049, Peoples R China.; Fei, Q; Dowe, N (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. EM feiqiang@mail.xjtu.edu.cn; nancy.dowe@nrel.gov FU United States Department of Energy's Bioenergy Technologies Office [NREL/PO-5100-63912] FX This work was supported by funding (NREL/PO-5100-63912) from the United States Department of Energy's Bioenergy Technologies Office. NR 56 TC 1 Z9 1 U1 17 U2 29 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1754-6834 J9 BIOTECHNOL BIOFUELS JI Biotechnol. Biofuels PD JUN 23 PY 2016 VL 9 AR 130 DI 10.1186/s13068-016-0542-x PG 12 WC Biotechnology & Applied Microbiology; Energy & Fuels SC Biotechnology & Applied Microbiology; Energy & Fuels GA DQ0EJ UT WOS:000378870900001 PM 27340432 ER PT J AU Armstrong, AM Allerman, AA Fischer, AJ King, MP van Heukelom, MS Moseley, MW Kaplar, RJ Wierer, JJ Crawford, MH Dickerson, JR AF Armstrong, A. M. Allerman, A. A. Fischer, A. J. King, M. P. van Heukelom, M. S. Moseley, M. W. Kaplar, R. J. Wierer, J. J. Crawford, M. H. Dickerson, J. R. TI High voltage and high current density vertical GaN power diodes SO ELECTRONICS LETTERS LA English DT Article ID P-N DIODES AB The realisation of a GaN high voltage vertical p-n diode operating at >3.9 kV breakdown with a specific on-resistance <0.9 m Omega cm(2) is reported. Diodes achieved a forward current of 1 A for on-wafer, DC measurements, corresponding to a current density >1.4 kA/cm(2). An effective critical electric field of 3.9 MV/cm was estimated for the devices from analysis of the forward and reverse current-voltage characteristics. This suggests that the fundamental limit to the GaN critical electric field is significantly greater than previously believed. C1 [Armstrong, A. M.; Allerman, A. A.; Fischer, A. J.; King, M. P.; van Heukelom, M. S.; Moseley, M. W.; Kaplar, R. J.; Crawford, M. H.; Dickerson, J. R.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Wierer, J. J.] Lehigh Univ, Elect & Comp Engn, Bethlehem, PA 18015 USA. RP Armstrong, AM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM aarmstr@sandia.gov RI Wierer, Jonathan/G-1594-2013 OI Wierer, Jonathan/0000-0001-6971-4835 FU Laboratory Directed Research and Development (LDRD) program at Sandia; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors thank I. C. Kizilyalli and O. Aktas for helpful discussions. This work was supported by the Laboratory Directed Research and Development (LDRD) program at Sandia. The 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 11 TC 3 Z9 3 U1 19 U2 46 PU INST ENGINEERING TECHNOLOGY-IET PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND SN 0013-5194 EI 1350-911X J9 ELECTRON LETT JI Electron. Lett. PD JUN 23 PY 2016 VL 52 IS 13 BP 1170 EP 1171 DI 10.1049/el.2016.1156 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA DQ0JW UT WOS:000378886300044 ER PT J AU de Almeida, VF Liu, HJ Herwig, KW Kidder, MK AF de Almeida, Valmor F. Liu, Hongjun Herwig, Kenneth W. Kidder, Michelle K. TI Neutron Scattering of Residual Hydrogen in 1,4-Dioxane-d(8) Liquid: Understanding Measurements with Molecular Dynamics Simulations SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID HEAT-CAPACITIES; MIXTURES; 1,3-DIOXOLANE; DIFFRACTION; WATER AB That incoherent scattering from protiated molecular liquids adds a constant background to the measured scattering intensity is well-known, but less appreciated is the fact that coherent scattering is also induced by the presence of hydrogen in a deuterated liquid. In fact, the scattering intensity can be very sensitive, in the small-q region, with respect to the amounts and distribution of residual H in the system. We used 1,4-dioxane liquid to demonstrate that the partial structure factors of the HD and DD atom pairs contribute significantly to intermolecular scattering and that uncertainty in the extent of deuteration account for discrepancies between simulations and measurements. Both contributions to uncertainty have similar magnitudes: scattering interference of the hydrogen deuterium pair, and complementary interference from the deuterium deuterium pair by virtue of chemical inhomogeneity. This situation arises in practice since deuteration of liquids is often 99% or less. A combined experimental and extensive computational study of static thermal neutron scattering of 1,4-dioxane demonstrates the foregoing. We show, through simulations, that the reason for the differences is the content of protiated dioxane (vendors quote 1%). We estimate that up to 5% (at 298 K and at 343 K) protiated molar fraction may be involved in generating the scattering differences. Finally, we find that the particular distribution of hydrogen in the protiated molecules affects the results significantly; here, we considered molecules to be either fully protiated or fully deuterated. This scenario best reconciles the computational and experimental results, and leads us to speculate that the deuteration synthesis process tends to leave a molecule either fully deuterated or fully protiated. Although we have used 1,4-dioxane as a model liquid, the effects described in this study extend to similar liquids, and similar systematic experimental/computational studies can be performed to either understand measurements or calibrate/validate molecular dynamics models. C1 [de Almeida, Valmor F.; Liu, Hongjun; Kidder, Michelle K.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Herwig, Kenneth W.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA. [Liu, Hongjun] Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN USA. RP de Almeida, VF; Kidder, MK (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM dealmeidav@ornl.gov; kidderm@ornl.gov RI de Almeida, Valmor/P-5498-2016 OI de Almeida, Valmor/0000-0003-0899-695X FU US Department of Energy (DOE) [DE-AC05-00OR22725]; Scientific User Facilities Division through the Office of Basic Energy Sciences of DOE FX This work was partially supported by the Laboratory Director's Research and Development program of the Oak Ridge National Laboratory (ORNL) which is managed by UT-Battelle, LLC, for the US Department of Energy (DOE) under Contract DE-AC05-00OR22725. The research at the ORNL's Spallation Neutron Source was supported by the Scientific User Facilities Division through the Office of Basic Energy Sciences of DOE. The authors thank Dr. Changwoo Do, instrument scientist of the EQ-SANS diffractometer, for explaining the inelastic scattering effects on the data collected, and Dr. William T. Heller, lead instrument scientist, for discussions and help with absolute data calibration. Molecular dynamics simulations were performed at the Center for Advanced Modeling and Simulation of the Idaho National Laboratory, and NERSC. NR 26 TC 0 Z9 0 U1 5 U2 9 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 23 PY 2016 VL 120 IS 24 BP 5455 EP 5469 DI 10.1021/acs.jpcb.6b00872 PG 15 WC Chemistry, Physical SC Chemistry GA DP7FC UT WOS:000378663600014 PM 27276502 ER PT J AU Hoffmann, MJ Medford, AJ Bligaard, T AF Hoffmann, Max J. Medford, Andrew J. Bligaard, Thomas TI Framework for Scalable Adsorbate-Adsorbate Interaction Models SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TRANSITION-METALS; OXIDATION; ALGORITHM; DENSITY AB We present a framework for physically motivated models of adsorbate-adsorbate interaction between small molecules on transition and coinage metals based on modifications to the substrate electronic structure due to adsorption. We use this framework to develop one model for transition and one for coinage metal surfaces. The models for transition metals are based on the d-band center position, and the models for coinage metals are based on partial charges. The models require no empirical parameters, only two first-principles calculations per adsorbate as input, and therefore scale linearly with the number of reaction intermediates. By theory to theory comparison with explicit density functional theory calculations over a wide range of adsorbates and surfaces, we show that the root-mean-squared error for differential adsorption energies is less than 0.2 eV for up to 1 ML coverage. C1 [Hoffmann, Max J.; Medford, Andrew J.; Bligaard, Thomas] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. [Hoffmann, Max J.; Medford, Andrew J.; Bligaard, Thomas] SLAC, Natl Accelerator Lab, SUNCAT Ctr Interface Sci & Catalysis, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. RP Hoffmann, MJ (reprint author), Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA.; Hoffmann, MJ (reprint author), SLAC, Natl Accelerator Lab, SUNCAT Ctr Interface Sci & Catalysis, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. EM maxjh@stanford.edu FU U.S. DOE-BES FX We thank the U.S. DOE-BES for support through the Early Career program to SUNCAT Center for Interface Science and Catalysis. NR 26 TC 0 Z9 0 U1 4 U2 8 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 23 PY 2016 VL 120 IS 24 BP 13087 EP 13094 DI 10.1021/acs.jpcc.6b03375 PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DP7FE UT WOS:000378663800018 ER PT J AU Hernandez, SC Holby, EF AF Hernandez, Sarah C. Holby, Edward F. TI DFT plus U Study of Chemical Impurities in PuO2 SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; PLUTONIUM-IRON ALLOYS; WAVE BASIS-SET; DELTA-PU; OXYGEN-ADSORPTION; 111 SURFACE; APPROXIMATION; EQUILIBRIUM; BEHAVIOR AB We employ density functional theory to explore the effects of impurities-in the fluorite crystal structure of PuO2. The impurities that were considered are known impurities that exist in metallic delta-phase Pu, including H, C, Fe, and Ga. These impurities were placed at various high-symmetry sites within the PuO2 structure including an octahedral interstitial site, an interstitial site with coordination to two neighboring O atoms, an O substitutional site, and a Pu substitutional site. Incorporation energies were calculated to be energetically unfavorable for all sites except the Pu substitutional site. When impurities were placed in a Pu substitutional site, complexes incorporating the impurities and O formed within the PuO2 structure. The observed defect-oxygen structures were OH, CO3, FeO5, and GaO3. The presence of these defects led to distortion of the surrounding O atoms within the structure, producing long-range disorder of O atoms. In contrast, perturbations of Pu atoms had a relatively short-range effect on the relaxed structures. These effects are demonstrated via radial distribution functions for O and Pu vacancies. Calculated electronic structure revealed hybridization of the impurity atom with the O valence states and a relative decrease in the Pu 5f states. Minor differences in band gaps were observed for the defected PuO2 structures containing H, C, and Ga. Fe-containing structures, however, were calculated to have a significantly decreased band gap, where the implementation of a Hubbard U parameter on the Fe 3d orbitals will maintain the calculated PuO2 band gap. C1 [Hernandez, Sarah C.] Los Alamos Natl Lab, Mat Sci & Technol Div, POB 1663, Los Alamos, NM 87545 USA. [Holby, Edward F.] Los Alamos Natl Lab, Sigma Div, POB 1663, Los Alamos, NM 87545 USA. RP Holby, EF (reprint author), Los Alamos Natl Lab, Sigma Div, POB 1663, Los Alamos, NM 87545 USA. EM holby@lanl.gov OI Holby, Edward/0000-0001-8419-6298; Hernandez, Sarah/0000-0002-1432-700X FU US Department of Energy through Los Alamos National Laboratory LDRD Program; National Nuclear Security Administration of U.S. Department of Energy [DE-AC52-06NA25396] FX This work was supported by the US Department of Energy through the Los Alamos National Laboratory LDRD Program. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of U.S. Department of Energy (contract DE-AC52-06NA25396). We gratefully acknowledge LANL Institutional Computing for computational support. The authors also gratefully acknowledge discussions on this work with E. Batista (LANL). NR 46 TC 3 Z9 3 U1 7 U2 9 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 23 PY 2016 VL 120 IS 24 BP 13095 EP 13102 DI 10.1021/acs.jpcc.6b03469 PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DP7FE UT WOS:000378663800019 ER PT J AU Mayhan, CM Drachnik, AM Mossine, AV Kumari, H Fowler, DA Barnes, CL Teat, SJ Adams, JE Atwood, JL Deakyne, CA AF Mayhan, Collin M. Drachnik, Amanda M. Mossine, Andrew V. Kumari, Harshita Fowler, Drew A. Barnes, Charles L. Teat, Simon J. Adams, John E. Atwood, Jerry L. Deakyne, Carol A. TI Metal Organic Nanocapsules as Two-Dimensional Network Building Blocks SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID CATION-PI INTERACTIONS; MOLECULAR CAPSULES; CRYSTAL-STRUCTURES; ZINC HYDROLASES; ALKALI-METAL; AB-INITIO; COMPLEXES; FRAMEWORKS; LIGAND; MODEL AB Metal organic frameworks (MOFs) are a class of porous materials with a wide variety of applications, including molecular adsorption and separation. Recently, the first MOF based on the zinc seamed pyrogallol[4]arene nanocapsule as a secondary building unit was reported. The zinc-seamed nanocapsules are linked together with 4,4'-bipyridine, which is a divergent ligand commonly used in the synthesis of MOFs. In an effort to identify other likely candidates for nanocapsular linking, electronic structure calculations were performed to determine energetic and geometric properties of (Zn(C2O2H3)(2))(1,2)Y model complexes, which have been shown previously to reliably model the zinc coordination sphere found in the nanocapsules. Here, Y represents one of 17 divergent ligands with N, S, or O electron-donating atoms. MOFs were synthesized and characterized from two of the ligands suggested as most suitable for further experimental study. C1 [Mayhan, Collin M.; Drachnik, Amanda M.; Mossine, Andrew V.; Fowler, Drew A.; Barnes, Charles L.; Adams, John E.; Atwood, Jerry L.; Deakyne, Carol A.] Univ Missouri, Dept Chem, 601 South Coll Ave, Columbia, MO 65211 USA. [Kumari, Harshita] Univ Cincinnati, James L Winkle Coll Pharm, 231 Albert Sabin Way,MSB 3109C, Cincinnati, OH 45267 USA. [Teat, Simon J.] Berkeley Lab, Adv Light Source, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Atwood, JL; Deakyne, CA (reprint author), Univ Missouri, Dept Chem, 601 South Coll Ave, Columbia, MO 65211 USA.; Kumari, H (reprint author), Univ Cincinnati, James L Winkle Coll Pharm, 231 Albert Sabin Way,MSB 3109C, Cincinnati, OH 45267 USA. EM kumariha@ucmail.uc.edu; atwoodj@missouri.edu; deakynec@missouri.edu FU NSF FX We thank NSF for financial support. The computations were performed on the HPC resources at the University of Missouri Bioinformatics Consortium (UMBC). NR 68 TC 2 Z9 2 U1 13 U2 26 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 23 PY 2016 VL 120 IS 24 BP 13159 EP 13168 DI 10.1021/acs.jpcc.6b04690 PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA DP7FE UT WOS:000378663800026 ER PT J AU Adrian-Martinez, S Albert, A Andre, M Anghinolfi, M Anton, G Ardid, M Aubert, JJ Avgitas, T Baret, B Barrios-Marti, J Basa, S Bertin, V Biagi, S Bormuth, R Bouwhuis, MC Bruijn, R Brunner, J Busto, J Capone, A Caramete, L Carr, J Celli, S Chiarusi, T Circella, M Coleiro, A Coniglione, R Costantini, H Coyle, P Creusot, A Deschamps, A De Bonis, G Distefano, C Donzaud, C Dornic, D Drouhin, D Eberl, T El Bojaddaini, I Elsasser, D Enzenhofer, A Fehn, K Felis, I Fusco, LA Galata, S Gay, P Geisselsoder, S Geyer, K Giordano, V Gleixner, A Glotin, H Gracia-Ruiz, R Graf, K Hallmann, S van Haren, H Heijboer, AJ Hello, Y Hernandez-Rey, JJ Hossl, J Hofestadt, J Hugon, C Illuminati, G James, CW de Jong, M Jongen, M Kadler, M Kalekin, O Katz, U Kiessling, D Kouchner, A Kreter, M Kreykenbohm, I Kulikovskiy, V Lachaud, C Lahmann, R Lefevre, D Leonora, E Loucatos, S Marcelin, M Margiotta, A Marinelli, A Martinez-Mora, JA Mathieu, A Melis, K Michael, T Migliozzi, P Moussa, A Mueller, C Nezri, E Pavalas, GE Pellegrino, C Perrina, C Piattelli, P Popa, V Pradier, T Racca, C Riccobene, G Roensch, K Saldana, M Samtleben, DFE Sanchez-Losa, A Sanguineti, M Sapienza, P Schnabel, J Schussler, F Seitz, T Sieger, C Spurio, M Stolarczyk, T Taiuti, M Trovato, A Tselengidou, M Turpin, D Tonnis, C Vallage, B Vallee, C Van Elewyck, V Vivolo, D Wagner, S Wilms, J Zornoza, JD Zuniga, J Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Anderson, T Ansseau, I Anton, G Archinger, M Arguelles, C Arlen, TC Auffenberg, J Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, JB Becker, KH Beiser, E BenZvi, S Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blumenthal, J Boersma, DJ Bohm, C Borner, M Bos, F Bose, D Boser, S Botner, O Braun, J Brayeur, L Bretz, HP Buzinsky, N Casey, J Casier, M Cheung, E Chirkin, D Christov, A Clark, K Classen, L Coenders, S Collin, GH Conrad, JM Cowen, DF Silva, AHC Daughhetee, J Davis, JC Day, M de Andre, JPAM De Clercq, C Rosendo, ED Dembinski, H De Ridder, S Desiati, P de Vries, KD de Wasseige, G de With, M DeYoung, T Diaz-Velez, JC di Lorenzo, V Dujmovic, H Dumm, JP Dunkman, M Eberhardt, B Ehrhardt, T Eichmann, B Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fosig, CC Fuchs, T Gaisser, TK Gaior, R Gallagher, J Gerhardt, L Ghorbani, K Gier, D Gladstone, L Glagla, M Gluesenkamp, T Goldschmidt, A Golup, G Gonzalez, JG Gora, D Grant, D Griffith, Z Ha, C Haack, C Ismail, AH Hallgren, A Halzen, F Hansen, E Hansmann, B Hansmann, T Hanson, K Hebecker, D Heereman, D Helbing, K Hellauer, R Hickford, S Hignight, J Hill, GC Hoffman, KD Hoffmann, R Holzapfel, K Homeier, A Hoshina, K Huang, F Huber, M Huelsnitz, W Hulth, PO Hultqvist, K In, S Ishihara, A Jacobi, E Japaridze, GS Jeong, M Jero, K Jones, BJP Jurkovic, M Kappes, A Karg, T Karle, A Katz, U Kauer, M Keivani, A Kelley, JL Kemp, J Kheirandish, A Kim, M Kintscher, T Kiryluk, J Klein, SR Kohnen, G Koirala, R Kolanoski, H Konietz, R Kopke, L Kopper, C Kopper, S Koskinen, DJ Kowalski, M Krings, K Kroll, G Kroll, M Kruckl, G Kunnen, J Kunwar, S Kurahashi, N Kuwabara, T Labare, M Lanfranchi, JL Larson, MJ Lennarz, D Lesiak-Bzdak, M Leuermann, M Leuner, J Lu, L Lunemann, J Madsen, J Maggi, G Mahn, KBM Mandelartz, M Maruyama, R Mase, K Matis, HS Maunu, R McNally, F Meagher, K Medici, M Meier, M Meli, A Menne, T Merino, G Meures, T Miarecki, S Middell, E Mohrmann, L Montaruli, T Morse, R Nahnhauer, R Naumann, U Neer, G Niederhausen, H Nowicki, SC Nygren, DR Pollmann, AO Olivas, A Omairat, A O'Murchadha, A Palczewski, T Pandya, H Pankova, DV Paul, L Pepper, JA Heros, CPDL Pfendner, C Pieloth, D Pinat, E Posselt, J Price, PB Przybylski, GT Quinnan, M Raab, C Radel, L Rameez, M Rawlins, K Reimann, R Relich, M Resconi, E Rhode, W Richman, M Richter, S Riedel, B Robertson, S Rongen, M Rott, C Ruhe, T Ryckbosch, D Sabbatini, L Sander, HG Sandrock, A Sandroos, J Sarkar, S Schatto, K Schimp, M Schlunder, P Schmidt, T Schoenen, S Schoneberg, S Schonwald, A Schumacher, L Seckel, D Seunarine, S Soldin, D Song, M Spiczak, GM Spiering, C Stahlberg, M Stamatikos, M Stanev, T Stasik, A Steuer, A Stezelberger, T Stokstad, RG Stossl, A Strom, R Strotjohann, NL Sullivan, GW Sutherland, M Taavola, H Taboada, I Tatar, J Ter-Antonyan, S Terliuk, A Tesic, G Tilav, S Toale, PA Tobin, MN Toscano, S Tosi, D Tselengidou, M Turcati, A Unger, E Usner, M Vallecorsa, S Vandenbroucke, J van Eijndhoven, N Vanheule, S van Santen, J Veenkamp, J Vehring, M Voge, M Vraeghe, M Walck, C Wallace, A Wallraff, M Wandkowsky, N Weaver, C Wendt, C Westerhoff, S Whelan, BJ Wiebe, K Wiebusch, CH Wille, L Williams, DR Wills, L Wissing, H Wolf, M Wood, TR Woschnagg, K Xu, DL Xu, XW Xu, Y Yanez, JP Yodh, G Yoshida, S Zoll, M Abbott, BP Abbott, R Abbott, TD Abernathy, MR Acernese, F Ackley, K Adams, C Adams, T Addesso, P Adhikari, RX Adya, VB Affeldt, C Agathos, M Agatsuma, K Aggarwal, N Aguiar, OD Aiello, L Ain, A Ajith, P Allen, B Allocca, A Altin, PA Anderson, SB Anderson, WG Arai, K Araya, MC Arceneaux, CC Areeda, JS Arnaud, N Arun, KG Ascenzi, S Ashton, G Ast, M Aston, SM Astone, P Aufmuth, P Aulbert, C Babak, S Bacon, P Bader, MKM Baker, PT Baldaccini, F Ballardin, G Ballmer, SW Barayoga, JC Barclay, SE Barish, BC Barker, D Barone, F Barr, B Barsotti, L Barsuglia, M Barta, D Bartlett, J Bartos, I Bassiri, R Basti, A Batch, JC Baune, C Bavigadda, V Bazzan, M Behnke, B Bejger, M Belczynski, C Bell, AS Bell, CJ Berger, BK Bergman, J Bergmann, G Berry, CPL Bersanetti, D Bertolini, A Betzwieser, J Bhagwat, S Bhandare, R Bilenko, IA Billingsley, G Birch, J Birney, R Biscans, S Bisht, A Bitossi, M Biwer, C Bizouard, MA Blackburn, JK Blair, CD Blair, DG Blair, RM Bloemen, S Bock, O Bodiya, TP Boer, M Bogaert, G Bogan, C Bohe, A Bojtos, P Bond, C Bondu, F Bonnand, R Boom, BA Bork, R Boschi, V Bose, S Bouffanais, Y Bozzi, A Bradaschia, C Brady, PR Braginsky, VB Branchesi, M Brau, JE Briant, T Brillet, A Brinkmann, M Brisson, V Brockill, P Brooks, AF Brown, DA Brown, DD Brown, NM Buchanan, CC Buikema, A Bulik, T Bulten, HJ Buonanno, A Buskulic, D Buy, C Byer, RL Cadonati, L Cagnoli, G Cahillane, C Bustillo, JC Callister, T Calloni, E Camp, JB Cannon, KC Cao, J Capano, CD Capocasa, E Carbognani, F Caride, S Diaz, JC Casentini, C Caudill, S Cavaglia, M Cavalier, F Cavalieri, R Cella, G Cepeda, CB Baiardi, LC Cerretani, G Cesarini, E Chakraborty, R Chalermsongsak, T Chamberlin, SJ Chan, M Chao, S Charlton, P Chassande-Mottin, E Chen, HY Chen, Y Cheng, C Chincarini, A Chiummo, A Cho, HS Cho, M Chow, JH Christensen, N Chu, Q Chua, S Chung, S Ciani, G Clara, F Clark, JA Cleva, F Coccia, E Cohadon, PF Colla, A Collette, CG Cominsky, L Constancio, M Conte, A Conti, L Cook, D Corbitt, TR Cornish, N Corsi, A Cortese, S Costa, CA Coughlin, MW Coughlin, SB Coulon, JP Countryman, ST Couvares, P Cowan, EE Coward, DM Cowart, MJ Coyne, DC Coyne, R Craig, K Creighton, JDE Cripe, J Crowder, SG Cumming, A Cunningham, L Cuoco, E Dal Canton, T Danilishin, SL D'Antonio, S Danzmann, K Darman, NS Dattilo, V Dave, I Daveloza, HP Davier, M Davies, GS Daw, EJ Day, R Debra, D Debreczeni, G Degallaix, J De Laurentis, M Deleglise, S Del Pozzo, W Denker, T Dent, T Dereli, H Dergachev, V DeRosa, RT De Rosa, R DeSalvo, R Dhurandhar, S Diaz, MC Di Fiore, L Di Giovanni, M Di Lieto, A Di Pace, S Di Palma, I Di Virgilio, A Dojcinoski, G Dolique, V Donovan, F Dooley, KL Doravari, S Douglas, R Downes, TP Drago, M Drever, RWP Driggers, JC Du, Z Ducrot, M Dwyer, SE Edo, TB Edwards, MC Effler, A Eggenstein, HB Ehrens, P Eichholz, J Eikenberry, SS Engels, W Essick, RC Etzel, T Evans, M Evans, TM Everett, R Factourovich, M Fafone, V Fair, H Fairhurst, S Fan, X Fang, Q Farinon, S Farr, B Farr, WM Favata, M Fays, M Fehrmann, H Fejer, MM Ferrante, I Ferreira, EC Ferrini, F Fidecaro, F Fiori, I Fiorucci, D Fisher, RP Flaminio, R Fletcher, M Fournier, JD Franco, S Frasca, S Frasconi, F Frei, Z Freise, A Frey, R Frey, V Fricke, TT Fritschel, P Frolov, VV Fulda, P Fyffe, M Gabbard, HAG Gair, JR Gammaitoni, L Gaonkar, SG Garufi, F Gatto, A Gaur, G Gehrels, N Gemme, G Gendre, B Genin, E Gennai, A George, J Gergely, L Germain, V Ghosh, A Ghosh, S Giaime, JA Giardina, KD Giazotto, A Gill, K Glaefke, A Goetz, E Goetz, R Gondan, L Gonzalez, G Castro, JMG Gopakumar, A Gordon, NA Gorodetsky, ML Gossan, SE Gosselin, M Gouaty, R Graef, C Graff, PB Granata, M Grant, A Gras, S Gray, C Greco, G Green, AC Groot, P Grote, H Grunewald, S Guidi, GM Guo, X Gupta, A Gupta, MK Gushwa, KE Gustafson, EK Gustafson, R Hacker, JJ Hall, BR Hall, ED Hammond, G Haney, M Hanke, MM Hanks, J Hanna, C Hannam, MD Hanson, J Hardwick, T Harms, J Harry, GM Harry, IW Hart, MJ Hartman, MT Haster, CJ Haughian, K Heidmann, A Heintze, MC Heitmann, H Hello, P Hemming, G Hendry, M Heng, IS Hennig, J Heptonstall, AW Heurs, M Hild, S Hoak, D Hodge, KA Hofman, D Hollitt, SE Holt, K Holz, DE Hopkins, P Hosken, DJ Hough, J Houston, EA Howell, EJ Hu, YM Huang, S Huerta, EA Huet, D Hughey, B Husa, S Huttner, SH Huynh-Dinh, T Idrisy, A Indik, N Ingram, DR Inta, R Isa, HN Isac, JM Isi, M Islas, G Isogai, T Iyer, BR Izumi, K Jacqmin, T Jang, H Jani, K Jaranowski, P Jawahar, S Jimenez-Forteza, F Johnson, WW Jones, DI Jones, R Jonker, RJG Ju, L Haris, K Kalaghatgi, CV Kalogera, V Kandhasamy, S Kang, G Kanner, JB Karki, S Kasprzack, M Katsavounidis, E Katzman, W Kaufer, S Kaur, T Kawabe, K Kawazoe, F Kefelian, F Kehl, MS Keitel, D Kelley, DB Kells, W Kennedy, R Key, JS Khalaidovski, A Khalili, FY Khan, I Khan, S Khan, Z Khazanov, EA Kijbunchoo, N Kim, C Kim, J Kim, K Kim, NG Kim, N Kim, YM King, EJ King, PJ Kinzel, DL Kissel, JS Kleybolte, L Klimenko, S Koehlenbeck, SM Kokeyama, K Koley, S Kondrashov, V Kontos, A Korobko, M Korth, WZ Kowalska, I Kozak, DB Kringel, V Krishnan, B Krolak, A Krueger, C Kuehn, G Kumar, P Kuo, L Kutynia, A Lackey, BD Landry, M Lange, J Lantz, B Lasky, PD Lazzarini, A Lazzaro, C Leaci, P Leavey, S Lebigot, EO Lee, CH Lee, HK Lee, HM Lee, K Lenon, A Leonardi, M Leong, JR Leroy, N Letendre, N Levin, Y Levine, BM Li, TGF Libson, A Littenberg, TB Lockerbie, NA Logue, J Lombardi, AL Lord, JE Lorenzini, M Loriette, V Lormand, M Losurdo, G Lough, JD Luck, H Lundgren, AP Luo, J Lynch, R Ma, Y MacDonald, T Machenschalk, B MacInnis, M Macleod, DM Magana-Sandoval, F Magee, RM Mageswaran, M Majorana, E Maksimovic, I Malvezzi, V Man, N Mandel, I Mandic, V Mangano, V Mansell, GL Manske, M Mantovani, M Marchesoni, F Marion, F Marka, S Marka, Z Markosyan, AS Maros, E Martelli, F Martellini, L Martin, IW Martin, RM Martynov, DV Marx, JN Mason, K Masserot, A Massinger, TJ 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CA ANTARES Collaboration IceCube Collaboration LIGO Sci Collaboration Virgo Collaboration TI High-energy neutrino follow-up search of gravitational wave event GW150914 with ANTARES and IceCube SO PHYSICAL REVIEW D LA English DT Article ID GAMMA-RAY BURSTS; DATA-ACQUISITION SYSTEM; POINT-LIKE; TELESCOPE; TRANSIENTS; ASTRONOMY AB We present the high-energy-neutrino follow-up observations of the first gravitational wave transient GW150914 observed by the Advanced LIGO detectors on September 14, 2015. We search for coincident neutrino candidates within the data recorded by the IceCube and ANTARES neutrino detectors. A possible joint detection could be used in targeted electromagnetic follow-up observations, given the significantly better angular resolution of neutrino events compared to gravitational waves. We find no neutrino candidates in both temporal and spatial coincidence with the gravitational wave event. Within +/- 500 s of the gravitational wave event, the number of neutrino candidates detected by IceCube and ANTARES were three and zero, respectively. This is consistent with the expected atmospheric background, and none of the neutrino candidates were directionally coincident with GW150914. We use this nondetection to constrain neutrino emission from the gravitational-wave event. C1 [Adrian-Martinez, S.; Ardid, M.; Felis, I.; Martinez-Mora, J. A.; Saldana, M.] Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGI, C Paranimf 1, Gandia 46730, Spain. [Albert, A.; Drouhin, D.; Racca, C.] Univ Haute Alsace, Inst Univ Technol Colmar, GRPHE, 34 Rue Grillenbreit BP 50568, F-68008 Colmar, France. [Andre, M.] Tech Univ Catalonia, Lab Appl Bioacoust, Barcelona 08800, Spain. Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy. 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[Boerner, M.; Fuchs, T.; Meier, M.; Menne, T.; Pieloth, D.; Rhode, W.; Ruhe, T.; Sandrock, A.; Schlunder, P.] TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany. [Bose, D.; Dujmovic, H.; In, S.; Jeong, M.; Kim, M.; Rott, C.] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea. [Brayeur, L.; Casier, M.; De Clercq, C.; de Vries, K. D.; de Wasseige, G.; Golup, G.; Kunnen, J.; Luenemann, J.; Maggi, G.; Toscano, S.; van Eijndhoven, N.] Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium. [Buzinsky, N.; Grant, D.; Kopper, C.; Nowicki, S. C.; Riedel, B.; Weaver, Ch] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada. [Casey, J.; Daughhetee, J.; Taboada, I.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA. [Casey, J.; Daughhetee, J.; Taboada, I.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA. [Christov, A.; Montaruli, T.; Rameez, M.; Vallecorsa, S.] Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland. [Clark, K.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Cowen, D. F.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [de Andre, J. P. A. M.; DeYoung, T.; Hignight, J.; Lennarz, D.; Mahn, K. B. M.; Neer, G.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Dembinski, H.; Evenson, P. A.; Gaisser, T. K.; Gonzalez, J. G.; Koirala, R.; Pankova, D. V.; Seckel, D.; Stanev, T.; Tilav, S.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA. [Dembinski, H.; Evenson, P. A.; Gaisser, T. K.; Gonzalez, J. G.; Koirala, R.; Pankova, D. V.; Seckel, D.; Stanev, T.; Tilav, S.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA. [De Ridder, S.; Ismail, A. Haj; Labare, M.; Meli, A.; Ryckbosch, D.; Vanheule, S.; Vraeghe, M.] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium. [de With, M.; Hebecker, D.; Kolanoski, H.; Kowalski, M.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany. [Fazely, A. R.; Ter-Antonyan, S.] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA. [Gaior, R.; Ishihara, A.; Kuwabara, T.; Lu, L.; Mase, K.; Relich, M.] Chiba Univ, Dept Phys, Chiba 2638522, Japan. [Gallagher, J.] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA. [Hansen, E.; Koskinen, D. J.; Larson, M. J.; Medici, M.; Sarkar, S.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Homeier, A.; Voge, M.] Univ Bonn, Inst Phys, Nussallee 12, D-53115 Bonn, Germany. [Japaridze, G. S.] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA. [Kauer, M.; Maruyama, R.] Yale Univ, Dept Phys, New Haven, CT 06520 USA. [Kiryluk, J.; Lesiak-Bzdak, M.; Niederhausen, H.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kohnen, G.] Univ Mons, B-7000 Mons, Belgium. [Kurahashi, N.; Richman, M.; Wills, L.] Drexel Univ, Dept Phys, 3141 Chestnut St, Philadelphia, PA 19104 USA. [Madsen, J.; Seunarine, S.; Spiczak, G. M.] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA. [Palczewski, T.; Pepper, J. A.; Toale, P. A.; Williams, D. R.] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA. [Rawlins, K.] Univ Alaska Anchorage, Dept Phys & Astron, 3211 Providence Dr, Anchorage, AK 99508 USA. [Sarkar, S.] Univ Oxford, Dept Phys, 1 Keble Rd, Oxford OX1 3NP, England. [Abbott, B. P.; Abbott, R.; Abernathy, M. R.; Adhikari, R. X.; Anderson, S. B.; Arai, K.; Araya, M. C.; Barayoga, J. C.; Barish, B. C.; Berger, B. K.; Billingsley, G.; Blackburn, J. K.; Bork, R.; Brooks, A. F.; Cahillane, C.; Callister, T.; Cepeda, C. B.; Chakraborty, R.; Chalermsongsak, T.; Couvares, P.; Coyne, D. C.; Dergachev, V.; Drever, R. W. P.; Ehrens, P.; Etzel, T.; Gossan, S. E.; Gushwa, K. E.; Gustafson, E. K.; Hall, E. D.; Heptonstall, A. W.; Hodge, K. A.; Isi, M.; Kanner, J. B.; Kells, W.; Kondrashov, V.; Korth, W. Z.; Kozak, D. B.; Lazzarini, A.; Li, T. G. F.; Mageswaran, M.; Maros, E.; Martynov, D. V.; Marx, J. N.; McIntyre, G.; McIver, J.; Meshkov, S.; Pedraza, M.; Perreca, A.; Price, L. R.; Quintero, E. A.; Reitze, D. H.; Robertson, N. A.; Rollins, J. G.; Sachdev, S.; Sanchez, E. J.; Schmidt, P.; Shao, Z.; Singer, A.; Smith, N. D.; Smith, R. J. E.; Taylor, R.; Thirugnanasambandam, M. P.; Torres, C. V.; Torrie, C. I.; Vajente, G.; Vass, S.; Wallace, L.; Weinstein, A. J.; Whitcomb, S. E.; Williams, R. D.; Wipf, C. C.; Yamamoto, H.; Zhang, L.; Zucker, M. E.; Zweizig, J.] CALTECH, LIGO, Pasadena, CA 91125 USA. [Abbott, T. D.; Buchanan, C. C.; Corbitt, T. R.; Cripe, J.; Giaime, J. A.; Gonzalez, G.; Hardwick, T.; Johnson, W. W.; Kasprzack, M.; Kokeyama, K.; Macleod, D. M.; Singh, R.; Walker, M.] Louisiana State Univ, Baton Rouge, LA 70803 USA. [Acernese, F.; Addesso, P.; Barone, F.; Romano, R.] Univ Salerno, I-84084 Salerno, Italy. [Acernese, F.; Barone, F.; Calloni, E.; De laurentis, M.; De Rosa, R.; Diaz, M. C.; Di Fiore, L.; Garufi, F.; Milano, L.; Romano, R.] Complesso Univ Monte S Angelo, Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy. [Ackley, K.; Ciani, G.; Eichholz, J.; Eikenberry, S. S.; Fulda, P.; Goetz, R.; Hartman, M. T.; Heintze, M. C.; Klimenko, S.; Martin, R. M.; Mitselmakher, G.; Mueller, C. L.; Mueller, G.; Mytidis, A.; Necula, V.; Ottens, R. S.; Reitze, D. H.; Tanner, D. B.; Voss, D.; Whiting, B. F.] Univ Florida, Gainesville, FL 32611 USA. [Adams, C.; Aston, S. M.; Betzwieser, J.; Birch, J.; Cowart, M. J.; DeRosa, R. T.; Doravari, S.; Effler, A.; Evans, T. M.; Frolov, V. V.; Fyffe, M.; Giaime, J. A.; Giardina, K. D.; Hanson, J.; Heintze, M. C.; Holt, K.; Huynh-Dinh, T.; Katzman, W.; Kinzel, D. L.; Lormand, M.; McCormick, S.; Mullavey, A.; Nolting, D.; Oram, Richard J.; O'Reilly, B.; Overmier, H.; Parker, W.; Pele, A.; Romie, J. H.; Sellers, D.; Stuver, A. L.; Thomas, M.; Thorne, K. A.; Traylor, G.; Welborn, T.; Wu, G.] LIGO Livingston Observ, Livingston, LA 70754 USA. [Adams, T.; Bonnand, R.; Buskulic, D.; Ducrot, M.; Germain, V.; Gouaty, R.; Letendre, N.; Marion, F.; Masserot, A.; Mours, B.; Rolland, L.; Verkindt, D.; Was, M.; Yvert, M.] Univ Savoie Mont Blanc, CNRS, IN2P3, LAPP, F-74941 Annecy Le Vieux, France. [Adya, V. B.; Affeldt, C.; Allen, B.; Aufmuth, P.; Aulbert, C.; Baune, C.; Bergmann, G.; Bisht, A.; Bock, O.; Bogan, C.; Brinkmann, M.; Capano, C. D.; Dal Canton, T.; Danzmann, K.; Denker, T.; Dent, T.; Di Palma, I.; Doravari, S.; Drago, M.; Eggenstein, H-B.; Fehrmann, H.; Fricke, T. T.; Grote, H.; Hanke, M. M.; Heurs, M.; Indik, N.; Kawazoe, F.; Keitel, D.; Khalaidovski, A.; Koehlenbeck, S. M.; Kringel, V.; Krishnan, B.; Kuehn, G.; Leong, J. R.; Lough, J. D.; Lueck, H.; Lundgren, A. P.; Machenschalk, B.; Mazzolo, G.; Meadors, G. D.; Mendoza-Gandara, D.; Ming, J.; Mossavi, K.; Nielsen, A. B.; Nitz, A.; Oppermann, P.; Papa, M. A.; Post, A.; Prix, R.; Puncken, O.; Ruediger, A.; Salemi, F.; Schilling, R.; Schmidt, J.; Schreiber, E.; Schuette, D.; Shaltev, M.; Simakov, D.; Singh, A.; Steinke, M.; Steinmeyer, D.; Tarabrin, S. P.; Theeg, T.; Walsh, S.; Weinert, M.; Wessels, P.; Westphal, T.; Wette, K.; Whelan, J. T.; Willke, B.; Wimmer, M. H.; Winkler, W.; Wittel, H.] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany. [Agathos, M.; Agatsuma, K.; Bader, M. K. M.; Bertolini, A.; Boom, B. A.; Bulten, H. J.; Ghosh, S.; Jonker, R. J. G.; Koley, S.; Meidam, J.; Nelemans, G.; Nissanke, S.; Setyawati, Y.; Shah, S.; van Bakel, N.; van Beuzekom, M.; van den Brand, J. F. J.; Van den Broeck, C.; van der Schaaf, L.; van Heijningen, J. V.] Nikhef, Sci Pk, NL-1098 XG Amsterdam, Netherlands. [Aggarwal, N.; Barsotti, L.; Biscans, S.; Bodiya, T. P.; Brown, N. M.; Buikema, A.; Donovan, F.; Essick, R. 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M.; Passaquieti, R.; Patricelli, B.; Poggiani, R.; Razzano, M.; Tonelli, M.] Univ Pisa, I-56127 Pisa, Italy. [Allocca, A.; Basti, A.; Boschi, V.; Bradaschia, C.; Cella, G.; Cerretani, G.; Di Lieto, A.; Di Virgilio, A.; Ferrante, I.; Fidecaro, F.; Frasconi, F.; Gennai, A.; Giazotto, A.; Gonzalez Castro, J. M.; Moggi, A.; Paoletti, F.; Passaquieti, R.; Passuello, D.; Patricelli, B.; Poggiani, R.; Razzano, M.; Tonelli, M.; Trozzo, L.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy. [Altin, P. A.; Chow, J. H.; Mansell, G. L.; McClelland, D. E.; McManus, D. J.; Nguyen, T. T.; Rabeling, D. S.; Scott, S. M.; Shaddock, D. A.; Slagmolen, B. J. J.; Wade, A. R.; Ward, R. L.; Yap, M. J.] Australian Natl Univ, Canberra, ACT 0200, Australia. [Arceneaux, C. C.; Cavaglia, M.; Dooley, K. L.; Gabbard, H. A. G.; Kandhasamy, S.; Trifiro, D.] Univ Mississippi, University, MS 38677 USA. [Areeda, J. S.; Hacker, J. J.; Islas, G.; Read, J.; Serna, G.; Smith, J. R.; Vander-Hyde, D. C.] Calif State Univ Fullerton, Fullerton, CA 92831 USA. [Arnaud, N.; Bizouard, M. A.; Brisson, V.; Casanueva Diaz, J.; Cavalier, F.; Davier, M.; Franco, S.; Frey, V.; Hello, P.; Huet, D.; Kasprzack, M.; Leroy, N.; Robinet, F.] Univ Paris Saclay, Univ Paris Sud, CNRS, IN2P3,LAL, F-91400 Orsay, France. [Arun, K. G.; Kalaghatgi, C. V.] Chennai Math Inst, Madras 603103, Tamil Nadu, India. [Ascenzi, S.; Casentini, C.; Cesarini, E.; Coccia, E.; Fafone, V.; Malvezzi, V.; Nardecchia, I.; Re, V.; Sequino, V.] Univ Roma Tor Vergata, I-00133 Rome, Italy. [Ashton, G.; Jones, D. I.] Univ Southampton, Southampton SO17 1BJ, Hants, England. [Ast, M.; Kleybolte, L.; Korobko, M.; Pal-Singh, A.; Schnabel, R.; Schoenbeck, A.] Univ Hamburg, D-22761 Hamburg, Germany. [Astone, P.; Colla, A.; Conte, A.; Di Giovanni, M.; Di Pace, S.; Frasca, S.; Leaci, P.; Majorana, E.; Mezzani, F.; Naticchioni, L.; Palomba, C.; Piccinni, O.; Puppo, P.; Rapagnani, P.; Ricci, F.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy. [Babak, S.; Behnke, B.; Bohe, A.; Buonanno, A.; Di Palma, I.; Grunewald, S.; Harry, I. W.; Leaci, P.; Meadors, G. D.; Ming, J.; Papa, M. A.; Privitera, S.; Puerrer, M.; Raymond, V.; Schutz, B. F.; Singh, A.; Taracchini, A.; Walsh, S.] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Potsdam, Germany. [Baker, P. T.; Cornish, N.; Millhouse, M.] Montana State Univ, Bozeman, MT 59717 USA. [Baldaccini, F.; Gammaitoni, L.; Travasso, F.; Vocca, H.] Univ Perugia, I-06123 Perugia, Italy. [Baldaccini, F.; Gammaitoni, L.; Marchesoni, F.; Punturo, M.; Travasso, F.; Vocca, H.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy. 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J.; Haughian, K.; Hendry, M.; Heng, I. S.; Hennig, J.; Hild, S.; Hough, J.; Houston, E. A.; Hu, Y. M.; Huttner, S. H.; Isa, H. N.; Jones, R.; Leavey, S.; Lee, K.; Logue, J.; Mangano, V.; Martin, I. W.; Masso-Reid, M.; Messenger, C.; Murray, P. G.; Newton, G.; Pascucci, D.; Pearlstone, B. L.; Phelps, M.; Pitkin, M.; Powell, J.; Robertson, N. A.; Robie, R.; Rowan, S.; Scott, J.; Sorazu, B.; Steinlechner, J.; Steinlechner, S.; Strain, K. A.; van Veggel, A. A.; Woan, G.; Wright, J. L.] Univ Glasgow, SUPA, Glasgow G12 8QQ, Lanark, Scotland. [Barker, D.; Bartlett, J.; Batch, J. C.; Bergman, J.; Blair, R. M.; Clara, F.; Cook, D.; Driggers, J. C.; Dwyer, S. E.; Gray, C.; Hanks, J.; Ingram, D. R.; Izumi, K.; Kawabe, K.; Kijbunchoo, N.; King, P. J.; Kissel, J. S.; Landry, M.; Levine, B. M.; McCarthy, R.; Mendell, G.; Merilh, E.; Moraru, D.; Moreno, G.; Oberling, J.; Raab, F. J.; Radkins, H.; Reed, C. M.; Ryan, K.; Sadecki, T.; Sandberg, V.; Savage, R. 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L.; Bond, C.; Brown, D. D.; Del Pozzo, W.; Farr, W. M.; Freise, A.; Green, A. C.; Haster, C-J.; Mandel, I.; Miao, H.; Middleton, H.; Mow-Lowry, C. M.; Thomas, E. G.; Toeyrae, D.; Vecchio, A.; Veitch, J.; Vinciguerra, S.; Vousden, W. D.; Wang, H.; Wang, M.] Univ Birmingham, Birmingham B15 2TT, W Midlands, England. [Bersanetti, D.; Neri, M.] Univ Genoa, I-16146 Genoa, Italy. [Bersanetti, D.; Chincarini, A.; Farinon, S.; Gemme, G.; Neri, M.; Rei, L.; Sorrentino, F.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Bhandare, R.; Dave, I.; George, J.; Pai, S. A.; Pant, B. C.; Raja, S.] RRCAT, Indore 452013, MP, India. [Bilenko, I. A.; Braginsky, V. B.; Gorodetsky, M. L.; Khalili, F. Y.; Mitrofanov, V. P.; Prokhorov, L.; Strigin, S.; Vyatchanin, S. P.] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia. [Birney, R.; Reid, S.; Vine, D. J.] Univ West Scotland, SUPA, Paisley PA1 2BE, Renfrew, Scotland. [Blair, C. D.; Blair, D. G.; Chu, Q.; Chung, S.; Coward, D. 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Region Ile-de-France (DIM-ACAV); Region Alsace; Region Provence-Alpes-Cote d'Azur, Departement du Var and Ville de La Seyne-sur-Mer, France; Bundesministerium fur Bildung und Forschung (BMBF), Germany; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Stichting voor Fundamenteel Onderzoek der Materie (FOM); Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO), the Netherlands; Council of the President of the Russian Federation for young scientists and leading scientific schools supporting grants, Russia; National Authority for Scientific Research (ANCS), Romania; Ministerio de Economia y Competitividad (MINECO); Generalitat Valenciana; MultiDark, Spain; Agence de l'Oriental and CNRST, Morocco; U.S. National Science Foundation-Office of Polar Programs; U.S. National Science Foundation-Physics Division; University of Wisconsin Alumni Research Foundation; Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin - Madison; Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy; National Energy Research Scientific Computing Center; Louisiana Optical Network Initiative (LONI); Natural Sciences and Engineering Research Council of Canada; WestGrid; Compute/Calcul Canada; Swedish Research Council; Swedish Polar Research Secretariat; Swedish National Infrastructure for Computing (SNIC); Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF); Deutsche Forschungsgemeinschaft (DFG); Helmholtz Alliance for Astroparticle Physics (HAP); Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO); FWO Odysseus programme; Flanders Institute to encourage scientific and technological research in industry (IWT); Belgian Federal Science Policy Office (Belspo); University of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Danish National Research Foundation, Denmark (DNRF); United States National Science Foundation (NSF); Science and Technology Facilities Council (STFC) of the United Kingdom; Max-Planck-Society (MPS); State of Niedersachsen/Germany; Netherlands Organisation for Scientific Research; Council of Scientific and Industrial Research of India; Department of Science and Technology, India; Science & Engineering Research Board (SERB), India; Ministry of Human Resource Development, India; Spanish Ministerio de Economia y Competitividad; Conselleria d'Economia i Competitivitat; Conselleria d'Educacio; Cultura i Universitats of the Govern de les Illes Balears; National Science Centre of Poland; European Commission; Royal Society; Scottish Funding Council; Scottish Universities Physics Alliance; Hungarian Scientific Research Fund (OTKA); Lyon Institute of Origins (LIO); National Research Foundation of Korea; Industry Canada; Province of Ontario through Ministry of Economic Development and Innovation; Natural Science and Engineering Research Council Canada; Canadian Institute for Advanced Research; Brazilian Ministry of Science, Technology, and Innovation; Russian Foundation for Basic Research; Leverhulme Trust; Research Corporation; Ministry of Science and Technology (MOST), Taiwan; Kavli Foundation FX The authors acknowledge the financial support of the funding agencies: Centre National de la Recherche Scientifique (CNRS), Commissariat a l'energie atomique et aux energies alternatives (CEA), Commission Europeenne (FEDER fund and Marie Curie Program), Institut Universitaire de France (IUF), IdEx program and UnivEarthS Labex program at Sorbonne Paris Cite (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), Region Ile-de-France (DIM-ACAV), Region Alsace (contrat CPER), Region Provence-Alpes-Cote d'Azur, Departement du Var and Ville de La Seyne-sur-Mer, France; Bundesministerium fur Bildung und Forschung (BMBF), Germany; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Stichting voor Fundamenteel Onderzoek der Materie (FOM), Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO), the Netherlands; Council of the President of the Russian Federation for young scientists and leading scientific schools supporting grants, Russia; National Authority for Scientific Research (ANCS), Romania; Ministerio de Economia y Competitividad (MINECO), Prometeo and Grisolia programs of Generalitat Valenciana and MultiDark, Spain; Agence de l'Oriental and CNRST, Morocco. We also acknowledge the technical support of Ifremer, AIM and Foselev Marine for the sea operation and the CC-IN2P3 for the computing facilities. We acknowledge the support from the following agencies: U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, the Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin - Madison, the Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy, and National Energy Research Scientific Computing Center, the Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada, WestGrid and Compute/Calcul Canada; Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage scientific and technological research in industry (IWT), Belgian Federal Science Policy Office (Belspo); University of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); the Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Danish National Research Foundation, Denmark (DNRF). The authors gratefully acknowledge the support of the United States National Science Foundation (NSF) for the construction and operation of the LIGO Laboratory and Advanced LIGO as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, the Max-Planck-Society (MPS), and the State of Niedersachsen/Germany for support of the construction of Advanced LIGO and construction and operation of the GEO600 detector. Additional support for Advanced LIGO was provided by the Australian Research Council.; The authors gratefully acknowledge the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS) and the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, for the construction and operation of the Virgo detector and the creation and support of the EGO consortium. The authors also gratefully acknowledge research support from these agencies as well as by the Council of Scientific and Industrial Research of India, Department of Science and Technology, India, Science & Engineering Research Board (SERB), India, Ministry of Human Resource Development, India, the Spanish Ministerio de Economia y Competitividad, the Conselleria d'Economia i Competitivitat and Conselleria d'Educacio, Cultura i Universitats of the Govern de les Illes Balears, the National Science Centre of Poland, the European Commission, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, the Hungarian Scientific Research Fund (OTKA), the Lyon Institute of Origins (LIO), the National Research Foundation of Korea, Industry Canada and the Province of Ontario through the Ministry of Economic Development and Innovation, the Natural Science and Engineering Research Council Canada, Canadian Institute for Advanced Research, the Brazilian Ministry of Science, Technology, and Innovation, Russian Foundation for Basic Research, the Leverhulme Trust, the Research Corporation, Ministry of Science and Technology (MOST), Taiwan and the Kavli Foundation. The authors gratefully acknowledge the support of the NSF, STFC, MPS, INFN, CNRS and the State of Niedersachsen/Germany for provision of computational resources. This article has LIGO document number LIGO-P1500271. NR 64 TC 19 Z9 19 U1 31 U2 58 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 23 PY 2016 VL 93 IS 12 AR 122010 DI 10.1103/PhysRevD.93.122010 PG 15 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP2HE UT WOS:000378308200001 ER PT J AU Alexandrou, C Negele, JW Petschlies, M Pochinsky, AV Syritsyn, SN AF Alexandrou, C. Negele, J. W. Petschlies, M. Pochinsky, A. V. Syritsyn, S. N. TI Study of decuplet baryon resonances from lattice QCD SO PHYSICAL REVIEW D LA English DT Article ID QUANTUM-FIELD THEORIES; VOLUME DEPENDENCE; ENERGY-SPECTRUM; STATES AB A lattice QCD study of the strong decay width and coupling constant of decuplet baryons to an octet baryon-pion state is presented. The transfer matrix method is used to obtain the overlap of lattice states with decuplet baryon quantum numbers on the one hand and octet baryon-pion quantum numbers on the other as an approximation of the matrix element of the corresponding transition. By making use of leading-order effective field theory, the coupling constants as well as the widths for the various decay channels are determined. The transitions studied are Delta -> pi N, Sigma* -> Lambda pi, Sigma* -> Sigma pi and Xi* -> Xi pi. We obtain results for two ensembles of N-f = 2 + 1 dynamical fermion configurations: one using domain wall Valence quarks on a staggered sea at a pion mass of 350 MeV and a box size of 3.4 fm and a second one using domain wall sea and valence quarks at pion mass 180 MeV and box size 4.5 fm. C1 [Alexandrou, C.] Univ Cyprus, Dept Phys, POB 20537, CY-1678 Nicosia, Cyprus. [Alexandrou, C.; Petschlies, M.] Cyprus Inst, Computat Based Sci & Technol Res Ctr, 20 Kavafi St, CY-2121 Nicosia, Cyprus. [Negele, J. W.; Pochinsky, A. V.] MIT, Ctr Theoret Phys, Nucl Sci Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA. [Negele, J. W.; Pochinsky, A. V.] MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA. [Petschlies, M.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany. [Syritsyn, S. N.] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA. RP Alexandrou, C (reprint author), Univ Cyprus, Dept Phys, POB 20537, CY-1678 Nicosia, Cyprus. FU Research Executive Agency of the European Union [PITN-GA-2009-238353]; U.S. Department of Energy (DOE) Office of Nuclear Physics [DE-SC0011090, ER41888, DE-AC02-05CH11231]; RIKEN Foreign Postdoctoral Researcher Program; Office of Science of the DOE [DE-AC02-05CH11231]; Julich Supercomputing Center; PRACE EU FP7 [2011040546]; Cyprus Research Promotion Foundation [YPiODeltaOMH/SigmaTPATH/0308/31]; PRACE [RI-211528, FP7-261557] FX This research was in part supported by the Research Executive Agency of the European Union under Grant Agreement No. PITN-GA-2009-238353 (ITN STRONGnet), the U.S. Department of Energy (DOE) Office of Nuclear Physics under Grants No, DE-SC0011090, No. ER41888, and No. DE-AC02-05CH11231, and the RIKEN Foreign Postdoctoral Researcher Program. The computing resources were provided by the National Energy Research Scientific Computing Center supported by the Office of Science of the DOE under Contract No. DE-AC02-05CH11231, the Julich Supercomputing Center, awarded under the PRACE EU FP7 Project No. 2011040546 and by the Cy-Tera machine at the Cyprus Institute supported in part by the Cyprus Research Promotion Foundation under Contract No. NEA Y Pi O Delta OMH/Sigma TPATH/0308/31. The multiGPU domain wall inverter code [49] is based on the QUDA library [43,44], and its development has been supported by PRACE Grants No. RI-211528 and No. FP7-261557. NR 47 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 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD JUN 23 PY 2016 VL 93 IS 11 AR 114515 DI 10.1103/PhysRevD.93.114515 PG 16 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP2GP UT WOS:000378306600005 ER PT J AU Meyer, AS Betancourt, M Gran, R Hill, RJ AF Meyer, Aaron S. Betancourt, Minerba Gran, Richard Hill, Richard J. TI Deuterium target data for precision neutrino-nucleus cross sections SO PHYSICAL REVIEW D LA English DT Article ID FORM-FACTORS; QUANTUM CHROMODYNAMICS; SCATTERING; VECTOR; PARAMETERIZATION; HYDROGEN; DECAYS; PROTON; BOUNDS; MASS AB Amplitudes derived from scattering data on elementary targets are basic inputs to neutrino-nucleus cross section predictions. A prominent example is the isovector axial nucleon form factor, F-A(q(2)), which controls charged current signal processes at accelerator-based neutrino oscillation experiments. Previous extractions of F-A from neutrino-deuteron scattering data rely on a dipole shape assumption that introduces an unquantified error. A new analysis of world data for neutrino-deuteron scattering is performed using a model-independent, and systematically improvable, representation of FA. A complete error budget for the nucleon isovector axial radius leads to r(A)(2) = 0.46(22) m(2), with a much larger uncertainty than determined in the original analyses. The quasielastic neutrino-neutron cross section is determined as sigma(v(mu)n -> mu(-)p)vertical bar E-nu=1 GeV = 10.1(0.9) x 10(-39) cm(2). The propagation of nucleon-level constraints and uncertainties to nuclear cross sections is illustrated using MINERvA data and the GENIE event generator. These techniques can be readily extended to other amplitudes and processes. C1 [Meyer, Aaron S.] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA. [Meyer, Aaron S.; Hill, Richard J.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA. [Meyer, Aaron S.; Betancourt, Minerba] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Gran, Richard] Univ Minnesota, Dept Phys & Astron, Duluth, MN 55812 USA. [Hill, Richard J.] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada. [Hill, Richard J.] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada. RP Meyer, AS (reprint author), Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA.; Meyer, AS (reprint author), Univ Chicago, Dept Phys, Chicago, IL 60637 USA.; Meyer, AS (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM asmeyer2012@uchicago.edu; betan009@fnal.gov; rgran@d.umn.edu; richardhill@uchicago.edu RI Hill, Richard/C-8820-2017 OI Hill, Richard/0000-0003-1982-589X FU NSF [1306944]; DOE [DE-FG02-13ER41958, DE-AC05-06OR23100]; CETUP* (Center for Theoretical Underground Physics and Related Areas); U.S. Department of Energy. Office of Science Graduate Student Research (SCGSR) program FX We thank L. Alvarez Ruso, J. R. Arrington. H. Budd, S. Bacca, A. Kronfeld, T. Mann, J. Morfin, G. Paz, and J. W. Van Orden for discussions, and R. Schiavilla for providing data files and interpretation of the results of Ref. [70]. R. G. was supported by NSF Grant No. 1306944. Research of R. J. H. and A. S. M. was supported by DOE Grant No. DE-FG02-13ER41958. R. G. and R. J. H. thank CETUP* (Center for Theoretical Underground Physics and Related Areas) for its hospitality and partial support during the 2014 Summer Program. Research of A. S. M. was also supported by the U.S. Department of Energy. Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education for the DOE under Contract No. DE-AC05-06OR23100. NR 88 TC 3 Z9 3 U1 3 U2 4 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 23 PY 2016 VL 93 IS 11 AR 113015 DI 10.1103/PhysRevD.93.113015 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP2GP UT WOS:000378306600002 ER PT J AU Chomvong, K Bauer, S Benjamin, DI Li, X Nomura, DK Cate, JHD AF Chomvong, Kulika Bauer, Stefan Benjamin, Daniel I. Li, Xin Nomura, Daniel K. Cate, Jamie H. D. TI Bypassing the Pentose Phosphate Pathway: Towards Modular Utilization of Xylose SO PLOS ONE LA English DT Article ID ENGINEERED SACCHAROMYCES-CEREVISIAE; ETHYLENE-GLYCOL; LIVER KETOHEXOKINASE; ESCHERICHIA-COLI; KEY INHIBITOR; YEAST; FERMENTATION; STRAINS; GLYCOLALDEHYDE; EXPRESSION AB The efficient use of hemicellulose in the plant cell wall is critical for the economic conversion of plant biomass to renewable fuels and chemicals. Previously, the yeast Saccharomyces cerevisiae has been engineered to convert the hemicellulose-derived pentose sugars xylose and arabinose to D-xylulose-5-phosphate for conversion via the pentose phosphate pathway (PPP). However, efficient pentose utilization requires PPP optimization and may interfere with its roles in NADPH and pentose production. Here, we developed an alternative xylose utilization pathway that largely bypasses the PPP. In the new pathway, D-xylulose is converted to D-xylulose-1-phosphate, a novel metabolite to S. cerevisiae, which is then cleaved to glycolaldehyde and dihydroxyacetone phosphate. This synthetic pathway served as a platform for the biosynthesis of ethanol and ethylene glycol. The use of D-xylulose-1-phosphate as an entry point for xylose metabolism opens the way for optimizing chemical conversion of pentose sugars in S. cerevisiae in a modular fashion. C1 [Chomvong, Kulika] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. [Bauer, Stefan] Energy Biosci Inst, Berkeley, CA USA. [Benjamin, Daniel I.; Nomura, Daniel K.] Univ Calif Berkeley, Dept Nutr Sci & Toxicol, Program Metab Biol, Berkeley, CA 94720 USA. [Li, Xin; Cate, Jamie H. D.] Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA. [Cate, Jamie H. D.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Cate, Jamie H. D.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Cate, JHD (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.; Cate, JHD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Cate, JHD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM jcate@lbl.gov FU Energy Biosciences Institute FX This work was funded by the Energy Biosciences Institute, http://energybiosciencesinstitute.org/. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 38 TC 0 Z9 0 U1 3 U2 8 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 23 PY 2016 VL 11 IS 6 AR e0158111 DI 10.1371/journal.pone.0158111 PG 16 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP3JL UT WOS:000378389200113 PM 27336308 ER PT J AU Bossoni, L Moroni, M Julien, MH Mayaffre, H Canfield, PC Reyes, A Halperin, WP Carretta, P AF Bossoni, L. Moroni, M. Julien, M. H. Mayaffre, H. Canfield, P. C. Reyes, A. Halperin, W. P. Carretta, P. TI Persistence of slow fluctuations in the overdoped regime of Ba(Fe1-xRhx)(2)As-2 superconductors SO PHYSICAL REVIEW B LA English DT Article ID SPIN-ECHO DECAY; NUCLEAR-MAGNETIC-RESONANCE; IRON-BASED SUPERCONDUCTORS; STRIPE ORDER; DIFFUSION; NMR; TRANSITION; LOCKING; SOLIDS; FIELD AB We present nuclear magnetic resonance evidence that very slow (<= 1 MHz) spin fluctuations persist into the overdoped regime of Ba(Fe1-xRhx)(2)As-2 superconductors. Measurements of the As-75 spin echo decay rate, obtained both with Hahn Echo and Carr Purcell Meiboom Gill pulse sequences, show that the slowing down of spin fluctuations can be described by short-range diffusive dynamics, likely involving domain walls motions separating (pi/a, 0) from (0, pi/a) correlated regions. This slowing down of the fluctuations is weakly sensitive to the external magnetic field and, although fading away with doping, it extends deeply into the overdoped regime. C1 [Bossoni, L.; Moroni, M.; Carretta, P.] Univ Pavia, CNISM, Dept Phys, I-27100 Pavia, Italy. [Bossoni, L.] Leiden Univ, Huygens Kamerlingh Onnes Lab, NL-2333 CA Leiden, Netherlands. [Julien, M. H.; Mayaffre, H.] Univ Grenoble Alpes, CNRS, Lab Natl Champs Magnet Intenses, EMFL, F-38042 Grenoble, France. [Canfield, P. C.] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA. [Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Reyes, A.] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. [Halperin, W. P.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. RP Bossoni, L (reprint author), Univ Pavia, CNISM, Dept Phys, I-27100 Pavia, Italy.; Bossoni, L (reprint author), Leiden Univ, Huygens Kamerlingh Onnes Lab, NL-2333 CA Leiden, Netherlands. RI Julien, Marc-Henri/A-2352-2010 FU U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering (Northwestern University) [DE-FG02-05ER46248]; U.S. Department of Energy [DE- AC02-07CH11358]; MIUR [2012X3YFZ2] FX R. Fernandes, Y. Gallais, and R. Zhou are thanked for useful discussions. We acknowledge Mladen Horvatic for technical assistance and useful discussion. Jelmer Wagenaar, Martin de Wit, and Tjerk Oosterkamp are thanked for critical revision of the manuscript. Work done at Ames Laboratory (P.C.C.) and Northwestern University (W.P.H.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering (at Northwestern University, Award No. DE-FG02-05ER46248). The research was performed at the Ames Laboratory. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE- AC02-07CH11358. This work was supported by MIUR- PRIN2012 Project No. 2012X3YFZ2. NR 58 TC 1 Z9 1 U1 7 U2 9 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 23 PY 2016 VL 93 IS 22 AR 224517 DI 10.1103/PhysRevB.93.224517 PG 6 WC Physics, Condensed Matter SC Physics GA DP2GF UT WOS:000378305600003 ER PT J AU Ye, ZJ Martini, A Thiel, P Lovelady, HH McLaughlin, K Rabson, DA AF Ye, Zhijiang Martini, Ashlie Thiel, Patricia Lovelady, Heather H. McLaughlin, Keith Rabson, David A. TI Atomistic simulation of frictional anisotropy on quasicrystal approximant surfaces SO PHYSICAL REVIEW B LA English DT Article ID 1ST-PRINCIPLES INTERATOMIC POTENTIALS; TRANSITION-METAL ALUMINIDES; AL-NI-CO; SLIDING FRICTION; TRIBOLOGICAL PROPERTIES; PHASE-DIAGRAMS; EXCITATIONS; PROPERTY; DYNAMICS; ADHESION AB J. Y. Park et al. [Science 309, 1354 (2005)] have reported eight times greater atomic-scale friction in the periodic than in the quasiperiodic direction on the twofold face of a decagonal Al-Ni-Co quasicrystal. We present results of molecular-dynamics simulations intended to elucidate mechanisms behind this giant frictional anisotropy. Simulations of a bare atomic-force-microscope tip on several model substrates and under a variety of conditions failed to reproduce experimental results. On the other hand, including the experimental passivation of the tip with chains of hexadecane thiol, we reproduce qualitatively the experimental anisotropy in friction, finding evidence for entrainment of the organic chains in surface furrows parallel to the periodic direction. C1 [Ye, Zhijiang; Martini, Ashlie] Univ Calif Merced, Dept Mech Engn, 5200 North Lake Rd, Merced, CA 95343 USA. [Thiel, Patricia] Iowa State Univ, Dept Chem & Mat Sci, Ames, IA 50011 USA. [Thiel, Patricia] Iowa State Univ, Dept Engn, Ames, IA 50011 USA. [Thiel, Patricia] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. [Lovelady, Heather H.; McLaughlin, Keith; Rabson, David A.] Univ S Florida, Dept Phys, 4202 East Fowler Ave, Tampa, FL 33617 USA. RP Rabson, DA (reprint author), Univ S Florida, Dept Phys, 4202 East Fowler Ave, Tampa, FL 33617 USA. EM davidra@ewald.cas.usf.edu FU National Science Foundation [CMMI-1362565]; Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division of the US Department of Energy (USDOE) [DE-AC02-07CH11358]; US Department of Energy; NSF MRI [CHE 1531590]; Research-Computing Group at the University of South Florida FX We thank Susan Sinnott and Jacob Israelachvili for useful suggestions and Dr. Gustavo Brunetto for generating the ray-tracing image shown in Fig. 10(b). Computations were performed on the CIRCE cluster at the University of South Florida and the Coates/Conte/Carter clusters at Purdue University. The initial atomic configuration of the thiol tip model was created with the assistance of U. S. Ramasamy. A.M. and Z.Y. acknowledge the support of the National Science Foundation through Grant No. CMMI-1362565. P.T. acknowledges support from the Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division of the US Department of Energy (USDOE), under Contract No. DE-AC02-07CH11358 with the US Department of Energy. D.A.R. acknowledges NSF MRI Award No. CHE 1531590 and the support of the Research-Computing Group at the University of South Florida. NR 55 TC 0 Z9 0 U1 11 U2 15 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 23 PY 2016 VL 93 IS 23 AR 235438 DI 10.1103/PhysRevB.93.235438 PG 9 WC Physics, Condensed Matter SC Physics GA DP2GJ UT WOS:000378306000004 ER PT J AU Ticknor, C Kress, JD Collins, LA Clerouin, J Arnault, P Decoster, A AF Ticknor, Christopher Kress, Joel D. Collins, Lee A. Clerouin, Jean Arnault, Philippe Decoster, Alain TI Transport properties of an asymmetric mixture in the dense plasma regime SO PHYSICAL REVIEW E LA English DT Article ID EQUATION-OF-STATE; VISCOSITY AB We study how concentration changes ionic transport properties along isobars-isotherms for a mixture of hydrogen and silver, representative of turbulent layers relevant to inertial confinement fusion and astrophysics. Hydrogen will typically be fully ionized while silver will be only partially ionized but can have a large effective charge. This will lead to very different physical conditions for the H and Ag. Large first principles orbital free molecular dynamics simulations are performed and the resulting transport properties are analyzed. Comparisons are made with transport theory in the kinetic regime and in the coupled regime. The addition of a small amount of heavy element in a light material has a dramatic effect on viscosity and diffusion of the mixture. This effect is explained through kinetic theory as a manifestation of a crossover between classical diffusion and Lorentz diffusion. C1 [Ticknor, Christopher; Kress, Joel D.; Collins, Lee A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Clerouin, Jean; Arnault, Philippe; Decoster, Alain] CEA, DAM, DIF, F-91297 Arpajon, France. RP Ticknor, C (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Clerouin, jean/D-8528-2015; OI Clerouin, jean/0000-0003-2144-2759; Ticknor, Christopher/0000-0001-9972-4524 FU NNSA of the U.S. DOE [DE-AC52-06NA25396] FX The authors gratefully acknowledge support from Advanced Simulation and Computing, Science Campaign 4, computing resource from CCC, and LANL, which is operated by LANS, LLC for the NNSA of the U.S. DOE under Contract No. DE-AC52-06NA25396. This work has been performed under the NNSA/DAM collaborative agreement P184 on Basic Science. We especially thank Flavien Lambert for providing his OFMD code. NR 53 TC 2 Z9 2 U1 3 U2 5 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 23 PY 2016 VL 93 IS 6 AR 063208 DI 10.1103/PhysRevE.93.063208 PG 10 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA DP2HG UT WOS:000378308400007 PM 27415378 ER PT J AU Jiang, H Han, LL Lin, P Wang, ZR Jang, MH Wu, Q Barnell, M Yang, JJH Xin, HLL Xia, QF AF Jiang, Hao Han, Lili Lin, Peng Wang, Zhongrui Jang, Moon Hyung Wu, Qing Barnell, Mark Yang, J. Joshua Xin, Huolin L. Xia, Qiangfei TI Sub-10 nm Ta Channel Responsible for Superior Performance of a HfO2 Memristor SO SCIENTIFIC REPORTS LA English DT Article ID DEVICE; MEMORY; MECHANISMS; TANTALUM; SYSTEMS; GROWTH AB Memristive devices are promising candidates for the next generation non-volatile memory and neuromorphic computing. It has been widely accepted that the motion of oxygen anions leads to the resistance changes for valence-change-memory (VCM) type of materials. Only very recently it was speculated that metal cations could also play an important role, but no direct physical characterizations have been reported yet. Here we report a Ta/HfO2/Pt memristor with fast switching speed, record high endurance (120 billion cycles) and reliable retention. We programmed the device to 24 discrete resistance levels, and also demonstrated over a million (2(20)) epochs of potentiation and depression, suggesting that our devices can be used for both multi-level non-volatile memory and neuromorphic computing applications. More importantly, we directly observed a sub-10 nm Ta-rich and O-deficient conduction channel within the HfO2 layer that is responsible for the switching. This work deepens our understanding of the resistance switching mechanism behind oxide-based memristive devices and paves the way for further device performance optimization for a broad spectrum of applications. C1 [Jiang, Hao; Han, Lili; Lin, Peng; Wang, Zhongrui; Jang, Moon Hyung; Xia, Qiangfei] Univ Massachusetts, Nanodevices & Integrated Syst Lab, Dept Elect & Comp Engn, Amherst, MA 01003 USA. [Han, Lili; Xin, Huolin L.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Jang, Moon Hyung; Yang, J. Joshua] Univ Massachusetts, Ion & Elect Device & Mat Lab, Dept Elect & Comp Engn, Amherst, MA 01003 USA. [Wu, Qing; Barnell, Mark] Air Force Res Lab, Informat Directorate, Rome, NY 13441 USA. RP Xia, QF (reprint author), Univ Massachusetts, Nanodevices & Integrated Syst Lab, Dept Elect & Comp Engn, Amherst, MA 01003 USA. EM qxia@ecs.umass.edu RI Xin, Huolin/E-2747-2010 OI Xin, Huolin/0000-0002-6521-868X FU U.S. Air Force Office for Scientific Research (AFOSR) [FA9550-12-1-0038]; U.S. Air Force Research Laboratory (AFRL) [FA8750-15-2-0044]; U.S. DOE Office of Science Facility, at Brookhaven National Laboratory [DE-SC0012704] FX This work was supported in part by the U.S. Air Force Office for Scientific Research (AFOSR) (Grant No. FA9550-12-1-0038) and the U.S. Air Force Research Laboratory (AFRL) (Grant No. FA8750-15-2-0044). Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of AFRL. The authors would like to thank Kim Kisslinger for preparing TEM samples using FIB. The TEM work used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. NR 41 TC 1 Z9 1 U1 18 U2 37 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 23 PY 2016 VL 6 AR 28525 DI 10.1038/srep28525 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP2MR UT WOS:000378323400001 PM 27334443 ER PT J AU Shepherd, MR Dudek, JJ Mitchell, RE AF Shepherd, Matthew R. Dudek, Jozef J. Mitchell, Ryan E. TI Searching for the rules that govern hadron construction SO NATURE LA English DT Review ID EXOTIC MESON PRODUCTION; HYBRID MESONS; LATTICE QCD; 18 GEV/C; MODEL; CHROMODYNAMICS; RESONANCE; STATES AB Just as quantum electrodynamics describes how electrons are bound in atoms by the electromagnetic force, mediated by the exchange of photons, quantum chromodynamics (QCD) describes how quarks are bound inside hadrons by the strong force, mediated by the exchange of gluons. QCD seems to allow hadrons constructed from increasingly many quarks to exist, just as atoms with increasing numbers of electrons exist, yet such complex constructions seemed, until recently, not to be present in nature. Here we describe advances in the spectroscopy of mesons that are refining our understanding of the rules for predicting hadron structure from QCD. C1 [Shepherd, Matthew R.; Mitchell, Ryan E.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Dudek, Jozef J.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Dudek, Jozef J.] Jefferson Lab, Newport News, VA 23606 USA. RP Shepherd, MR (reprint author), Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. EM mashephe@indiana.edu FU US Department of Energy [DE-AC05-06OR23177, DE-SC0006765, DE-FG02-05ER41374] FX J.J.D. acknowledges support provided by US Department of Energy contract DE-AC05-06OR23177, under which Jefferson Science Associates manages Jefferson Laboratory and the Early Career Award contract DE-SC0006765. M.R.S. and R.E.M. are supported by US Department of Energy contract DE-FG02-05ER41374. M.R.S. acknowledges the Jefferson Science Associates Sabbatical Leave Support Program. We thank L. Weinstein for comments on the initial draft of this manuscript. NR 68 TC 1 Z9 1 U1 2 U2 8 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 EI 1476-4687 J9 NATURE JI Nature PD JUN 23 PY 2016 VL 534 IS 7608 BP 487 EP 493 DI 10.1038/nature18011 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP1SS UT WOS:000378270300041 PM 27337337 ER PT J AU Key, HM Dydio, P Clark, DS Hartwig, JF AF Key, Hanna M. Dydio, Pawel Clark, Douglas S. Hartwig, John F. TI Abiological catalysis by artificial haem proteins containing noble metals in place of iron SO NATURE LA English DT Article ID ENANTIOSELECTIVE CATALYSIS; OLEFIN CYCLOPROPANATION; DIRECTED EVOLUTION; METALLOENZYMES; COMPLEXES; HYDROXYLATION; MYOGLOBIN; CYTOCHROME-P450; INSERTION AB Enzymes that contain metal ions-that is, metalloenzymes-possess the reactivity of a transition metal centre and the potential of molecular evolution to modulate the reactivity and substrate-selectivity of the system(1). By exploiting substrate promiscuity and protein engineering, the scope of reactions catalysed by native metalloenzymes has been expanded recently to include abiological transformations(2,3). However, this strategy is limited by the inherent reactivity of metal centres in native metalloenzymes. To overcome this limitation, artificial metalloproteins have been created by incorporating complete, noble-metal complexes within proteins lacking native metal sites(1,4,5). The interactions of the substrate with the protein in these systems are, however, distinct from those with the native protein because the metal complex occupies the substrate binding site. At the intersection of these approaches lies a third strategy, in which the native metal of a metalloenzyme is replaced with an abiological metal with reactivity different from that of the metal in a native protein(6-8). This strategy could create artificial enzymes for abiological catalysis within the natural substrate binding site of an enzyme that can be subjected to directed evolution. Here we report the formal replacement of iron in Fe-porphyrin IX (Fe-PIX) proteins with abiological, noble metals to create enzymes that catalyse reactions not catalysed by native Fe-enzymes or other metalloenzymes(9,10). In particular, we prepared modified myoglobins containing an Ir(Me) site that catalyse the functionalization of C-H bonds to form C-C bonds by carbene insertion and add carbenes to both beta-substituted vinylarenes and unactivated aliphatic alpha-olefins. We conducted directed evolution of the Ir(Me)-myoglobin and generated mutants that form either enantiomer of the products of C-H insertion and catalyse the enantio-and diastereoselective cyclopropanation of unactivated olefins. The presented method of preparing artificial haem proteins containing abiological metal porphyrins sets the stage for the generation of artificial enzymes from innumerable combinations of PIX-protein scaffolds and unnatural metal cofactors to catalyse a wide range of abiological transformations. C1 [Key, Hanna M.; Dydio, Pawel; Hartwig, John F.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Key, Hanna M.; Dydio, Pawel; Hartwig, John F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Clark, Douglas S.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Clark, Douglas S.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Biophys & Integrated Bioimaging Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Hartwig, JF (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Hartwig, JF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM jhartwig@berkeley.edu OI Dydio, Pawel/0000-0001-5095-4943 FU Office of Science of the US Department of Energy [DE-AC02-05CH11231]; NSF; NWO Netherlands Organization for Scientific Research [680-50-1306]; NIH [1S10RR022393-01] FX This work was supported by the Director, Office of Science, of the US Department of Energy under contract no. DE-AC02-05CH11231, by the NSF (graduate research fellowship to H.M.K.), and the NWO Netherlands Organization for Scientific Research (Rubicon postdoctoral fellowship no. 680-50-1306 to P.D.). We thank the QB3 MacroLab facility (sub-cloning), the UC Berkeley DNA Sequencing Facility (plasmid sequencing), T. Iavarone and the QB3 Mass Spectrometry Facility (supported by NIH grant 1S10RR022393-01) for native NS-ESI-MS data and analysis, and H. Zhao (University of Illinois-Champaign Urbana) for the P411-CIS gene. NR 30 TC 15 Z9 15 U1 59 U2 106 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 EI 1476-4687 J9 NATURE JI Nature PD JUN 23 PY 2016 VL 534 IS 7608 BP 534 EP 537 DI 10.1038/nature17968 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP1SS UT WOS:000378270300050 PM 27296224 ER PT J AU Cruz, JA Savage, LJ Zegarac, R Hall, CC Satoh-Cruz, M Davis, GA Kovac, WK Chen, J Kramer, DM AF Cruz, Jeffrey A. Savage, Linda J. Zegarac, Robert Hall, Christopher C. Satoh-Cruz, Mio Davis, Geoffry A. Kovac, William Kent Chen, Jin Kramer, David M. TI Dynamic Environmental Photosynthetic Imaging Reveals Emergent Phenotypes SO CELL SYSTEMS LA English DT Article ID THYLAKOID MEMBRANE PROTEOME; PHOTOSYSTEM-II COMPLEXES; CHLOROPHYLL FLUORESCENCE; ARABIDOPSIS-THALIANA; PLANT-RESPONSES; IN-VIVO; FLUCTUATING LIGHT; CHLOROPLAST 2010; ATP/ADP CARRIER; ATP SYNTHASE AB Understanding and improving the productivity and robustness of plant photosynthesis requires high-throughput phenotyping under environmental conditions that are relevant to the field. Here we demonstrate the dynamic environmental photosynthesis imager (DEPI), an experimental platform for integrated, continuous, and high-throughput measurements of photosynthetic parameters during plant growth under reproducible yet dynamic environmental conditions. Using parallel imagers obviates the need to move plants or sensors, reducing artifacts and allowing simultaneous measurement on large numbers of plants. As a result, DEPI can reveal phenotypes that are not evident under standard laboratory conditions but emerge under progressively more dynamic illumination. We show examples in mutants of Arabidopsis of such ''emergent phenotypes'' that are highly transient and heterogeneous, appearing in different leaves under different conditions and depending in complex ways on both environmental conditions and plant developmental age. These emergent phenotypes appear to be caused by a range of phenomena, suggesting that such previously unseen processes are critical for plant responses to dynamic environments. C1 [Cruz, Jeffrey A.; Savage, Linda J.; Zegarac, Robert; Hall, Christopher C.; Satoh-Cruz, Mio; Davis, Geoffry A.; Kovac, William Kent; Chen, Jin; Kramer, David M.] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. [Cruz, Jeffrey A.; Kramer, David M.] Michigan State Univ, Biochem & Mol Biol, E Lansing, MI 48824 USA. [Hall, Christopher C.; Kovac, William Kent; Kramer, David M.] Michigan State Univ, Plant Biol, E Lansing, MI 48824 USA. [Davis, Geoffry A.] Michigan State Univ, Cell & Mol Biol, E Lansing, MI 48824 USA. [Chen, Jin] Michigan State Univ, Comp Sci & Engn, E Lansing, MI 48824 USA. RP Kramer, DM (reprint author), Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA.; Kramer, DM (reprint author), Michigan State Univ, Biochem & Mol Biol, E Lansing, MI 48824 USA.; Kramer, DM (reprint author), Michigan State Univ, Plant Biol, E Lansing, MI 48824 USA. EM kramerd8@msu.edu FU Department of Energy, Office of Science, Basic Energy Sciences [DE-FG02-91ER20021]; MSU Center for Advanced Algal and Plant Phenotyping FX This work was supported by the Department of Energy, Office of Science, Basic Energy Sciences under Award DE-FG02-91ER20021 and the MSU Center for Advanced Algal and Plant Phenotyping. NR 74 TC 5 Z9 6 U1 4 U2 6 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 2405-4712 EI 2405-4720 J9 CELL SYST JI Cell Syst. PD JUN 22 PY 2016 VL 2 IS 6 BP 365 EP 377 DI 10.1016/j.cels.2016.06.001 PG 13 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA EL1DN UT WOS:000394360800005 PM 27336966 ER PT J AU Liu, XP Zhou, Y Wang, YF Gong, CD AF Liu, Xiao-Ping Zhou, Yuan Wang, Yi-Fei Gong, Chang-De TI Multifarious topological quantum phase transitions in two-dimensional topological superconductors SO SCIENTIFIC REPORTS LA English DT Article ID NON-ABELIAN STATISTICS; MAJORANA FERMIONS; ZERO MODES; NANOWIRE; CONDUCTANCE; SIGNATURE; VORTICES; STATES AB We study the two-dimensional topological superconductors of spinless fermions in a checkerboard-lattice Chern-insulator model. With the short-range p-wave superconducting pairing, multifarious topological quantum phase transitions have been found and several phases with high Chern numbers have been observed. We have established a rich phase diagram for these topological superconducting states. A finite-size checkerboard-lattice cylinder with a harmonic trap potential has been further investigated. Based upon the self-consistent numerical calculations of the Bogoliubov-de Gennes equations, various phase transitions have also been identified at different regions of the system. Multiple pairs of Majorana fermions are found to be well-separated and localized at the phase boundaries between the phases characterized by different Chern numbers. C1 [Liu, Xiao-Ping; Zhou, Yuan; Gong, Chang-De] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China. [Liu, Xiao-Ping; Zhou, Yuan; Gong, Chang-De] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. [Zhou, Yuan] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Wang, Yi-Fei; Gong, Chang-De] Zhejiang Normal Univ, Ctr Stat & Theoret Condensed Matter Phys, Jinhua 321004, Peoples R China. [Wang, Yi-Fei; Gong, Chang-De] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China. RP Zhou, Y (reprint author), Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China.; Zhou, Y (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zhou, Y (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. EM zhouyuan@nju.edu.cn FU NSFC of China [11374265, 11274276]; CSC FX This work is supported by the NSFC of China Grants No. 11374265 and No. 11274276. Y.Z. acknowledges the financial support of CSC. NR 45 TC 0 Z9 0 U1 6 U2 11 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 22 PY 2016 VL 6 AR 28471 DI 10.1038/srep28471 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DR6FB UT WOS:000379996500001 PM 27329219 ER PT J AU Kim, H Byun, J Bae, SH Ahmed, T Zhu, JX Kwon, SJ Lee, Y Min, SY Wolf, C Seo, HK Ahn, JH Lee, TW AF Kim, Hobeom Byun, Jinwoo Bae, Sang-Hoon Ahmed, Towfiq Zhu, Jian-Xin Kwon, Sung-Joo Lee, Yeongjun Min, Sung-Yong Wolf, Christoph Seo, Hong-Kyu Ahn, Jong-Hyun Lee, Tae-Woo TI On-Fabrication Solid-State N-Doping of Graphene by an Electron-Transporting Metal Oxide Layer for Efficient Inverted Organic Solar Cells SO ADVANCED ENERGY MATERIALS LA English DT Article ID LIGHT-EMITTING-DIODES; TOTAL-ENERGY CALCULATIONS; RECORD-HIGH EFFICIENCY; WAVE BASIS-SET; TRANSPARENT ELECTRODES; DOPED GRAPHENE; OPTOELECTRONIC DEVICES; MONOLAYER GRAPHENE; CARBON-FILMS; PERFORMANCE C1 [Kim, Hobeom; Byun, Jinwoo; Kwon, Sung-Joo; Lee, Yeongjun; Min, Sung-Yong; Wolf, Christoph; Seo, Hong-Kyu; Lee, Tae-Woo] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyungbuk, South Korea. [Bae, Sang-Hoon; Ahn, Jong-Hyun] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea. [Ahmed, Towfiq] 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 Lee, TW (reprint author), Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyungbuk, South Korea. EM twlee@postech.ac.kr RI Ahn, Jong-Hyun/L-9825-2016 OI Ahn, Jong-Hyun/0000-0002-8135-7719 FU Center for Advanced Soft-Electronics - Ministry of Science, ICT and Future Planning as Global Frontier Project [CASE-2014M3A6A5060947]; National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2013R1A2A2A01068753]; Center for Integrated Nanotechnologies, a U.S. DOE BES; LANL LDRD Program FX This work was supported by the Center for Advanced Soft-Electronics funded by the Ministry of Science, ICT and Future Planning as Global Frontier Project (CASE-2014M3A6A5060947). This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NRF-2013R1A2A2A01068753). Work at Los Alamos was supported by Center for Integrated Nanotechnologies, a U.S. DOE BES user facility, and LANL LDRD Program. NR 74 TC 0 Z9 0 U1 26 U2 46 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1614-6832 EI 1614-6840 J9 ADV ENERGY MATER JI Adv. Energy Mater. PD JUN 22 PY 2016 VL 6 IS 12 AR 1600172 DI 10.1002/aenm.201600172 PG 8 WC Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Energy & Fuels; Materials Science; Physics GA DQ6KK UT WOS:000379313400013 ER PT J AU Tang, JY Jin, MY Yuan, P Fu, YB Ma, XH AF Tang, Jiayong Jin, Mengyuan Yuan, Ping Fu, Yanbao Ma, Xiaohua TI Large-Area, Ultrathin Inorganic Network Coverages-Graphene Hierarchical Electrodes for Flexible, Heat-Resistant Energy Storage Application SO ADVANCED ENERGY MATERIALS LA English DT Article ID HIGH-PERFORMANCE SUPERCAPACITORS; ASYMMETRIC SUPERCAPACITORS; REDUCED GRAPHENE; LITHIUM STORAGE; OXIDE; NANOSHEET; ANODE; ION; DENSITY; CAPACITANCE AB Graphene and quasi-2D graphene-like materials with an ultrathin thickness have been investigated as a new class of nanoscale materials due to their distinctive properties. A novel "molecular tools-assistances" strategy is developed to fabricate two kinds of graphene-based electrodes, ultrathin Fe-doped MnO2 network coverage-graphene composites (G-MFO) and ultrathin MoS2 network coverage-graphene composites (G-MoS2) with special hierarchical structures. Such structures enable a large contact interface between the active materials and graphene and thus fully exploit the synergistic effect from both the high specific capacitance of MFO or MoS2 and the superb conductivity of graphene. Benefiting from their unique structural features, G-MFO and G-MoS2 films directly use as free-standing electrodes for flexible asymmetric supercapacitors with a nonaqueous gel electrolyte. The device achieves a high energy/power density, superior flexibility, good rate capability as well as outstanding performance stability even at a high temperature. This work represents a promising prototype to design new generation of hybrid supercapacitors for future energy storage devices. C1 [Tang, Jiayong; Jin, Mengyuan; Yuan, Ping; Ma, Xiaohua] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China. [Fu, Yanbao] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm & Energy Technol Div, Berkeley, CA 94720 USA. RP Ma, XH (reprint author), Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China. EM xhma@fudan.edu.cn FU State Key 973 Program of PRC [2011CB605704]; National Natural Science Foundation of China [U1201241, 51372041, 51202034, 51201035] FX J.T. and M.J. contributed equally to this work. This work was financially supported by the State Key 973 Program of PRC (2011CB605704), and the National Natural Science Foundation of China (U1201241, 51372041, 51202034, and 51201035). NR 49 TC 0 Z9 0 U1 41 U2 60 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1614-6832 EI 1614-6840 J9 ADV ENERGY MATER JI Adv. Energy Mater. PD JUN 22 PY 2016 VL 6 IS 12 AR 1600146 DI 10.1002/aenm.201600146 PG 11 WC Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Energy & Fuels; Materials Science; Physics GA DQ6KK UT WOS:000379313400011 ER PT J AU Yoon, I Abraham, DP Lucht, BL Bower, AF Guduru, PR AF Yoon, Insun Abraham, Daniel P. Lucht, Brett L. Bower, Allan F. Guduru, Pradeep R. TI In Situ Measurement of Solid Electrolyte Interphase Evolution on Silicon Anodes Using Atomic Force Microscopy SO ADVANCED ENERGY MATERIALS LA English DT Article ID LITHIUM-ION BATTERIES; SURFACE-FILM FORMATION; AMORPHOUS-SILICON; THERMOCHEMICAL EQUILIBRIUM; PROPYLENE CARBONATE; SECONDARY BATTERIES; THIN-FILMS; LI; STRESS; PERFORMANCE AB In situ measurements of the growth of solid electrolyte interphase (SEI) layer on silicon and the lithiation-induced volume changes in silicon in lithium ion half-cells are reported. Thin film amorphous silicon electrodes are fabricated in a configuration that allows unambiguous separation of the total thickness change into contribution from SEI thickness and silicon volume change. Electrodes are assembled into a custom-designed electrochemical cell, which is integrated with an atomic force microscope. The electrodes are subjected to constant potential lithiation/delithiation at a sequence of potential values and the thickness measurements are made at each potential after equilibrium is reached. Experiments are carried out with two electrolytes-1.2 M lithium hexafluoro-phosphate (LiPF6) in ethylene carbonate (EC) and 1.2 M LiPF6 in propylene carbonate (PC)-to investigate the influence of electrolyte composition on SEI evolution. It is observed that SEI formation occurs predominantly during the first lithiation and the maximum SEI thickness is approximate to 17 and 10 nm respectively for EC and PC electrolytes. This study also presents the measured Si expansion ratio versus equilibrium potential and charge capacity versus equilibrium potential; both relationships display hysteresis, which is explained in terms of the stress-potential coupling in silicon. C1 [Yoon, Insun; Bower, Allan F.; Guduru, Pradeep R.] Brown Univ, Sch Engn, Providence, RI 02912 USA. [Abraham, Daniel P.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Lucht, Brett L.] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA. RP Guduru, PR (reprint author), Brown Univ, Sch Engn, Providence, RI 02912 USA. EM pradeep_guduru@brown.edu FU United States Department of Energy EPSCoR Implementation award [DE-SC0007074] FX The authors gratefully acknowledge financial support from the United States Department of Energy EPSCoR Implementation award (grant # DE-SC0007074). NR 60 TC 5 Z9 5 U1 35 U2 71 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1614-6832 EI 1614-6840 J9 ADV ENERGY MATER JI Adv. Energy Mater. PD JUN 22 PY 2016 VL 6 IS 12 AR 1600099 DI 10.1002/aenm.201600099 PG 9 WC Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Energy & Fuels; Materials Science; Physics GA DQ6KK UT WOS:000379313400008 ER PT J AU Smith, K Parrish, R Wei, W Liu, YZ Li, T Hu, YH Xiong, H AF Smith, Kassiopeia Parrish, Riley Wei, Wei Liu, Yuzi Li, Tao Hu, Yun Hang Xiong, Hui TI Disordered 3D Multi-layer Graphene Anode Material from CO2 for Sodium-Ion Batteries SO CHEMSUSCHEM LA English DT Article DE carbon dioxide mitigation; carbon material; defect; energy storage; sodium-ion battery ID ENERGY-STORAGE; CARBONACEOUS MATERIALS; ELECTRODE MATERIALS; LITHIUM INSERTION; CATHODE MATERIALS; NA; INTERCALATION; PERFORMANCE; TRANSPORTATION; MECHANISMS AB We report the application of disordered 3D multi-layer graphene, synthesized directly from CO2 gas through a reaction with Li at 550 degrees C, as an anode for Na-ion batteries (SIBs) toward a sustainable and greener future. The material exhibited a reversible capacity of approximate to 190mAhg(-1) with a Coulombic efficiency of 98.5% at a current density of 15mAg(-1). The discharge capacity at higher potentials (>0.2V vs. Na/Na+) is ascribed to Na-ion adsorption at defect sites, whereas the capacity at low potentials (<0.2V) is ascribed to intercalation between graphene sheets through electrochemical characterization, Raman spectroscopy, and small-angle X-ray scattering experiments. The disordered multi-layer graphene electrode demonstrated a great rate capability and cyclability. This novel approach to synthesize disordered 3D multi-layer graphene from CO2 gas makes it attractive not only as an anode material for SIBs but also to mitigate CO2 emission. C1 [Smith, Kassiopeia; Parrish, Riley; Xiong, Hui] Boise State Univ, Micron Sch Mat, 1910 Univ Dr, Boise, ID 83725 USA. [Wei, Wei; Hu, Yun Hang] Michigan Technol Univ, Dept Mat Sci & Engn, 1400 Townsend Dr, Houghton, MI 49931 USA. [Liu, Yuzi] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Lemont, IL 60439 USA. [Li, Tao] Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave, Lemont, IL 60439 USA. RP Xiong, H (reprint author), Boise State Univ, Micron Sch Mat, 1910 Univ Dr, Boise, ID 83725 USA. EM clairexiong@boisestate.edu FU Center for Advanced Energy Studies; U.S. Department of Energy, USDOE-BES [DE-AC02-06CH11357]; US Department of Energy Scientific User Facilities [DEAC02-06CH11357]; U Chicago Argonne, LLC FX H. X. acknowledges the support from the Center for Advanced Energy Studies. This work and use of the Center for Nanoscale Materials were supported by the U.S. Department of Energy, USDOE-BES, under Contract DE-AC02-06CH11357. The work at the APS was supported by the US Department of Energy Scientific User Facilities under Contract DEAC02-06CH11357 with U Chicago Argonne, LLC, and operator of Argonne National Laboratory. NR 38 TC 0 Z9 0 U1 19 U2 39 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1864-5631 EI 1864-564X J9 CHEMSUSCHEM JI ChemSusChem PD JUN 22 PY 2016 VL 9 IS 12 BP 1397 EP 1402 DI 10.1002/cssc.201600117 PG 6 WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY SC Chemistry; Science & Technology - Other Topics GA DQ9TQ UT WOS:000379552600004 PM 27121419 ER PT J AU Estevez, L Reed, D Nie, ZM Schwarz, AM Nandasiri, MI Kizewski, JP Wang, W Thomsen, E Liu, J Zhang, JG Sprenkle, V Li, B AF Estevez, Luis Reed, David Nie, Zimin Schwarz, Ashleigh M. Nandasiri, Manjula I. Kizewski, James P. Wang, Wei Thomsen, Edwin Liu, Jun Zhang, Ji-Guang Sprenkle, Vincent Li, Bin TI Tunable Oxygen Functional Groups as Electrocatalysts on Graphite Felt Surfaces for All-Vanadium Flow Batteries SO CHEMSUSCHEM LA English DT Article DE carbon; electrode; oxygen functional group; plasma chemistry; vanadium flow battery ID ELECTRODE-REACTION CATALYST; CARBON NANOTUBES; ENERGY-STORAGE; COMPOSITE ELECTRODE; POSITIVE ELECTRODE; GRAPHENE OXIDE; PERFORMANCE; VO2+/VO2+; HYBRID AB A dual oxidative approach using O-2 plasma followed by treatment with H2O2 to impart oxygen functional groups onto the surface of a graphite felt electrode. When used as electrodes for an all-vanadium redox flow battery (VRB) system, the energy efficiency of the cell is enhanced by 8.2% at a current density of 150mAcm(-2) compared with one oxidized by thermal treatment in air. More importantly, by varying the oxidative techniques, the amount and type of oxygen groups was tailored and their effects were elucidated. It was found that O-C=O groups improve the cells performance whereas the C-O and C=O groups degrade it. The reason for the increased performance was found to be a reduction in the cell overpotential after functionalization of the graphite felt electrode. This work reveals a route for functionalizing carbon electrodes to improve the performance of VRB cells. This approach can lower the cost of VRB cells and pave the way for more commercially viable stationary energy storage systems that can be used for intermittent renewable energy storage. C1 [Estevez, Luis; Reed, David; Nie, Zimin; Schwarz, Ashleigh M.; Nandasiri, Manjula I.; Kizewski, James P.; Wang, Wei; Thomsen, Edwin; Liu, Jun; Zhang, Ji-Guang; Sprenkle, Vincent; Li, Bin] Pacific Northwest Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. RP Li, B (reprint author), Pacific Northwest Natl Lab, 902 Battelle Blvd,POB 999, Richland, WA 99352 USA. EM bin.li@pnnl.gov RI Wang, Wei/F-4196-2010 OI Wang, Wei/0000-0002-5453-4695 FU U.S. Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability (OE) [57558]; DOE Office of Biological and Environmental Research; DOE [DE-AC05-76L01830] FX Bin Li would like to acknowledge financial support from the U.S. Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability (OE) (under Contract No. 57558). We are also grateful for insightful discussions with Dr. Imre Gyuk of the DOE-OE Grid Storage Program. A portion of the research described in this paper was conducted under the Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory (PNNL), a multi-program national laboratory operated by Battelle for the U.S. Department of Energy. Luis Estevez is grateful for the support of the Linus Pauling Distinguished Postdoctoral Fellowship program. We would also like to thank the Harrick Plasma company, Dr. Kerry D Meinhardt and Dr. Mark E Gross for aid and discussions pertaining to the use of the plasma device. A portion of the research was performed using Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE Office of Biological and Environmental Research and located at PNNL, which is a multi-program national laboratory operated by Battelle for DOE under Contract DE-AC05-76L01830. NR 44 TC 0 Z9 0 U1 18 U2 33 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1864-5631 EI 1864-564X J9 CHEMSUSCHEM JI ChemSusChem PD JUN 22 PY 2016 VL 9 IS 12 BP 1455 EP 1461 DI 10.1002/cssc.201600198 PG 7 WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY SC Chemistry; Science & Technology - Other Topics GA DQ9TQ UT WOS:000379552600011 PM 27184225 ER PT J AU Shylesh, S Gokhale, AA Scown, CD Kim, D Ho, CR Bell, AT AF Shylesh, Sankaranarayanapillai Gokhale, Amit A. Scown, Corinne D. Kim, Daeyoup Ho, Christopher R. Bell, Alexis T. TI From Sugars to Wheels: The Conversion of Ethanol to 1,3-Butadiene over Metal-Promoted Magnesia-Silicate Catalysts SO CHEMSUSCHEM LA English DT Article DE biomass; alcohols; gold; magnesium; supported catalysts ID BUTADIENE FORMATION; CHEMICALS; SEPIOLITE; BIOMASS; SUSTAINABILITY; BUTA-1,3-DIENE; SELECTIVITY; INDUSTRY; KINETICS; SURFACE AB 1,3-Butadiene (1,3-BD) is a high-value chemical intermediate used mainly as a monomer for the production of synthetic rubbers. The ability to source 1,3-BD from biomass is of considerable current interest because it offers the potential to reduce the life-cycle greenhouse gas (GHG) impact associated with 1,3-BD production from petroleum-derived naphtha. Herein, we report the development and investigation of a new catalyst and process for the one-step conversion of ethanol to 1,3-BD. The catalyst is prepared by the incipient impregnation of magnesium oxide onto a silica support followed by the deposition of Au nanoparticles by deposition-precipitation. The resulting Au/MgO-SiO2 catalyst exhibits a high activity and selectivity to 1,3-BD and low selectivities to diethyl ether, ethylene, and butenes. Detailed characterization of the catalyst shows that the desirable activity and selectivity of Au/MgO-SiO2 are a consequence of a critical balance between the acidic-basic sites associated with a magnesium silicate hydrate phase and the redox properties of the Au nanoparticles. A process for the conversion of ethanol to 1,3-BD, which uses our catalyst, is proposed and analyzed to determine the life-cycle GHG impact of the production of this product from biomass-derived ethanol. We show that 1,3-BD produced by our process can reduce GHG emissions by as much as 155% relative to the conventional petroleum-based production of 1,3-BD. C1 [Shylesh, Sankaranarayanapillai; Gokhale, Amit A.; Scown, Corinne D.; Bell, Alexis T.] Univ Calif Berkeley, Energy Biosci Inst, 2151 Berkeley Way, Berkeley, CA 94720 USA. [Gokhale, Amit A.] BASF Corp, 33 Wood Ave South, Iselin, NJ 08830 USA. [Scown, Corinne D.] Joint BioEnergy Inst, 5885 Hollis St, Berkeley, CA 94608 USA. [Scown, Corinne D.] Lawrence Berkeley Natl Lab, Energy Technol Area, Berkeley, CA 94720 USA. [Shylesh, Sankaranarayanapillai; Kim, Daeyoup; Ho, Christopher R.; Bell, Alexis T.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. RP Bell, AT (reprint author), Univ Calif Berkeley, Energy Biosci Inst, 2151 Berkeley Way, Berkeley, CA 94720 USA.; Bell, AT (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. EM alexbell@berkeley.edu OI Bell, Alexis/0000-0002-5738-4645 FU Energy Bioscience Institute; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Energy Bioscience Institute. 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. STEM-EDS mapping was performed at the National Center for Electron Microscopy at the Molecular Foundry, Lawrence Berkeley National Laboratory. Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Prof. John Myers from the University of Wyoming is acknowledged for his advice and help in developing the process model. We gratefully acknowledge the contributions of Dr. Chris Canlas, Dr. Gregory Johnson, and Dr. Jason Wu to the characterization section of the manuscript. NR 47 TC 4 Z9 4 U1 16 U2 29 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1864-5631 EI 1864-564X J9 CHEMSUSCHEM JI ChemSusChem PD JUN 22 PY 2016 VL 9 IS 12 BP 1462 EP 1472 DI 10.1002/cssc.201600195 PG 11 WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY SC Chemistry; Science & Technology - Other Topics GA DQ9TQ UT WOS:000379552600012 PM 27198471 ER PT J AU Wang, H Peng, R Hood, ZD Naguib, M Adhikari, SP Wu, ZL AF Wang, Hui Peng, Rui Hood, Zachary D. Naguib, Michael Adhikari, Shiba P. Wu, Zili TI Titania Composites with 2D Transition Metal Carbides as Photocatalysts for Hydrogen Production under Visible-Light Irradiation SO CHEMSUSCHEM LA English DT Article DE carbides; hydrogen; photochemistry; titanium; water splitting ID ROOM-TEMPERATURE SYNTHESIS; MESOPOROUS MATERIALS; AQUEOUS-SOLUTION; ION BATTERIES; EVOLUTION; WATER; NANOPARTICLES; TIO2; INTERCALATION; PERFORMANCE AB MXenes, a family of two-dimensional transition-metal carbides, were successfully demonstrated as co-catalysts with rutile TiO2 for visible-light-induced solar hydrogen production from water splitting. The physicochemical properties of Ti3C2Tx MXene coupled with TiO2 were investigated by a variety of characterization techniques. The effect of the Ti3C2Tx loading on the photocatalytic performance of the TiO2/Ti3C2Tx composites was elucidated. With an optimized Ti3C2Tx content of 5wt%, the TiO2/Ti3C2Tx composite shows a 400% enhancement in the photocatalytic hydrogen evolution reaction compared with that of pure rutile TiO2. We also expanded our exploration to other MXenes (Nb2CTx and Ti2CTx) as co-catalysts coupled with TiO2, and these materials also exhibited enhanced hydrogen production. These results manifest the generality of MXenes as effective co-catalysts for solar hydrogen production. C1 [Wang, Hui; Peng, Rui; Hood, Zachary D.; Wu, Zili] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Hood, Zachary D.] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA. [Naguib, Michael] Oak Ridge Natl Lab, Mat Sci Technol Div, Oak Ridge, TN 37831 USA. [Adhikari, Shiba P.] Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA. RP Wang, H; Wu, ZL (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. EM wangh1@ornl.gov; wuz1@ornl.gov OI Wu, Zili/0000-0002-4468-3240; Naguib, Michael/0000-0002-4952-9023 FU National Science Foundation Graduate Research Fellowship [DGE-1148903]; GT-ORNL Fellowship; Laboratory Directed Research and Development Program of Oak Ridge National Laboratory FX This research was supported and conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. Z.H. gratefully acknowledges support from the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1148903 and GT-ORNL Fellowship. M.N. was supported by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy. We acknowledge the helpful discussions and suggestions given by Drs. Ilgaz Soykal, Chengdu Liang, and Viviane Schwartz on the synthesis of Ti2CTx MXene. NR 43 TC 2 Z9 2 U1 57 U2 100 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1864-5631 EI 1864-564X J9 CHEMSUSCHEM JI ChemSusChem PD JUN 22 PY 2016 VL 9 IS 12 BP 1490 EP 1497 DI 10.1002/cssc.201600165 PG 8 WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY SC Chemistry; Science & Technology - Other Topics GA DQ9TQ UT WOS:000379552600015 PM 27219205 ER PT J AU Agarwal, S Fulgoni, VL Lieberman, HR AF Agarwal, Sanjiv Fulgoni, Victor L., III Lieberman, Harris R. TI Assessing alcohol intake & its dose-dependent effects on liver enzymes by 24-h recall and questionnaire using NHANES 2001-2010 data SO NUTRITION JOURNAL LA English DT Article DE Alkaline phosphatase; Alanine aminotransferase; Aspartate aminotransferase; Gamma glutamyl transferase; Bilirubin; NCI method ID GAMMA-GLUTAMYL-TRANSFERASE; CORONARY-HEART-DISEASE; UNITED-STATES; METABOLIC SYNDROME; MODERATE DRINKERS; SUBJECTIVE HEALTH; DRINKING PATTERN; CONSUMPTION; RISK; MORTALITY AB Background: Alcohol is a significant component of the diet with dose-dependent risks and benefits. High doses of alcohol damage the liver and early symptoms of liver disease include changes in routinely assessed liver enzymes. Less is known regarding the mechanisms responsible for the benefits of moderate alcohol consumption, including their effects on the liver. The objectives of this study were to examine alcohol's dose-dependent effects on markers of liver function (alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma glutamyl transferase (GGT), and bilirubin), as well as to compare the different methods of assessing alcohol intake using NHANES 2001-2010 adult data (N = 24,807). Methods: Three methods were used to estimate alcohol intake from all volunteers: 24-h recall; the National Cancer Institute (NCI) method of usual intake; and a specific alcohol intake questionnaire. Results: Mean alcohol intake by 24-h recall, NCI method and questionnaire was 41.0 +/- 0.8 g/d, 10.9 +/- 0.2 g/d and 11.0 +/- 0.2 g/d, respectively. Alcohol consumers had significantly lower levels of ALP and higher levels of AST, GGT and bilirubin compared to non-consumers (P < 0.01) and activities of ALT, AST, and GGT increased and of ALP decreased as alcohol intake increased, regardless of intake assessment method used. The most sensitive measure of alcohol consumption was GGT. Conclusions: Since alcohol had a graded linear effect on several liver enzymes, including at low and moderate doses, benefits as well as risks of alcohol intake may be related to liver function. Since the NCI method and alcohol questionnaire yielded very similar alcohol intake estimates, this study cross-validated these methods and demonstrated the robustness of the NCI method for estimating intake of irregularly consumed foods. C1 [Lieberman, Harris R.] US Army, Environm Med Res Inst, Mil Nutr Div, Natick, MA 01760 USA. [Agarwal, Sanjiv; Fulgoni, Victor L., III] Oak Ridge Inst Sci & Educ, Belcamp, MD 21017 USA. [Fulgoni, Victor L., III] Henry M Jackson Fdn, Bethesda, MD 20817 USA. RP Lieberman, HR (reprint author), US Army, Environm Med Res Inst, Mil Nutr Div, Natick, MA 01760 USA. EM harris.r.lieberman.civ@mail.mil FU U.S. Army Medical Research and Material Command; Department of Defense Center Alliance for Dietary Supplement Research FX The views, opinions, and findings in this report are those of the authors and should not be construed as an official Department of Defense or Army position, policy, or decision, unless so designated by other official documentation. Citations of commercial organizations and trade names in this report do not constitute an official Department of the Army endorsement or approval of the products or services of these organizations. The investigators have adhered to the policies for protection of human subjects as prescribed in DOD Instruction 3216.02 and the research was conducted in adherence with the provisions of 32 CFR Part 219. We thank U.S. Army Medical Research and Material Command and Department of Defense Center Alliance for Dietary Supplement Research for funding the research. This research was also supported in part by an appointment to the Research Participation Program at the U.S. Army Medical Research Institute of Environmental Medicine administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and USAMRMC. NR 46 TC 1 Z9 1 U1 0 U2 0 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1475-2891 J9 NUTR J JI Nutr. J. PD JUN 22 PY 2016 VL 15 AR 62 DI 10.1186/s12937-016-0180-y PG 12 WC Nutrition & Dietetics SC Nutrition & Dietetics GA DQ6DP UT WOS:000379294600001 PM 27334005 ER PT J AU Sardashti, K Haight, R Anderson, R Contreras, M Fruhberger, B Kummel, AC AF Sardashti, Kasra Haight, Richard Anderson, Ryan Contreras, Miguel Fruhberger, Bernd Kummel, Andrew C. TI Grazing Incidence Cross-Sectioning of Thin-Film Solar Cells via Cryogenic Focused Ion Beam: A Case Study on CIGSe SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE thin-film photovoltaics; Cryo-FIB; KPFM; CIGSe; back contacts ID PROBE FORCE MICROSCOPY; IMPACT; MOSE2 AB Cryogenic focused ion beam (Cryo-FIB) milling at near grazing angles is employed to fabricate cross-sections on thin Cu(In,Ga)Se-2 with >8x expansion in thickness. Kelvin probe force microscopy (KPFM) on sloped cross sections showed reduction in grain boundaries potential deeper into the film. Cryo Fib-KPFM enabled the first determination of the electronic structure of the Mo/CIGSe back contact, where a sub 100 nm thick MoSey assists hole extraction due to 45 meV higher work function. This demonstrates that CryoFIB-KPFM combination can reveal new targets of opportunity for improvement in thin -films photovoltaics such as high work -function contacts to facilitate hole extraction through the back interface of CIGS. C1 [Sardashti, Kasra; Kummel, Andrew C.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. [Haight, Richard] IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA. [Anderson, Ryan; Fruhberger, Bernd] Univ Calif San Diego, Calif Inst Telecommun & Informat Technol, La Jolla, CA 92093 USA. [Contreras, Miguel] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Kummel, AC (reprint author), Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. EM akummel@ucsd.edu FU U.S. Department of Energy, Energy Efficiency and Renewable Energy Program [DE-EE0006334]; National Science Foundation [DMR 1207213] FX The information, data, or work presented herein was funded in part by the U.S. Department of Energy, Energy Efficiency and Renewable Energy Program, under Award DE-EE0006334. Stanford Nano Shared Facilities are acknowledged for NanoAuger measurements. K.S. thanks Chuck Hitzman for assistance with NanoAuger measurements. Funding for the technique development was also provided by National Science Foundation Grant DMR 1207213. NR 27 TC 2 Z9 2 U1 4 U2 15 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 22 PY 2016 VL 8 IS 24 SI SI BP 14994 EP 14999 DI 10.1021/acsami.6b04214 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DP6CP UT WOS:000378584800013 PM 27248803 ER PT J AU Wu, ZZ Ji, SP Hu, ZX Zheng, JX Xiao, S Lin, Y Xu, K Amine, K Pan, F AF Wu, Zhongzhen Ji, Shunping Hu, Zongxiang Zheng, Jiaxin Xiao, Shu Lin, Yuan Xu, Kang Amine, Khalil Pan, Feng TI Pre-Lithiation of Li(Ni1-x-yMnxCoy)O-2 Materials Enabling Enhancement of Performance for Li-Ion Battery SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE pre-lithiation; Li(NixMnyCoz)O-2 (NMCxyz); ab initio calculations; double-layered Li structure; cycling stability and capacity ID TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; CATHODE MATERIALS; HIGH-CAPACITY; BASIS-SET; LITHIUM; ELECTRODES AB Transition metal oxide materials Li(NixMnyCoz)O-2 (NMCxyz) based on layered structure are potential cathode candidates for automotive Li-ion batteries because of their high specific capacities and operating. potentials. However, the actual usable capacity, cycling stability, and first-cycle Coulombic efficiency remain far from practical. Previously, we reported a combined strategy consisting of depolarization with embedded carbon nanotube (CNT) and activation through pre-lithiation of the NMC host, which significantly improved the reversible capacity and cycling stability of NMC532-based material. In the present work we attempt to understand how pre-lithiation leads to these improvements on an atomic level with experimental investigation and ab initio calculations. By lithiating a series of NMC materials with varying chemical compositions prepared via a conventional approach, we identified the Ni in the NMC lattice as the component responsible for accommodating a double-layered Li structure. Specifically, much better improvements in the cycling stability and capacity can be achieved with the NMC lattices populated with Ni3+ than those populated with only Ni2+ Using the XRD we also found that the emergence of a double-layer Li structure is not only reversible during the pre-lithiation and the following delithiation, but also stable against elevated temperatures up to 320 degrees C. These new findings regarding the mechanism of pre-lithiation as well as how it affects the reversibility and stability of NMC-based cathode "materials prepared by the conventional slurry approach will promote the possibility of their application in the future battery industry. C1 [Wu, Zhongzhen; Ji, Shunping; Hu, Zongxiang; Zheng, Jiaxin; Xiao, Shu; Lin, Yuan; Pan, Feng] Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China. [Xu, Kang] US Army Res Lab, Adelphi, MD 20783 USA. [Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Electrochem Technol Program, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Pan, F (reprint author), Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China. EM panfeng@pkusz.edu.cn FU National Science Foundation of China [51301004]; Guangdong Innovation Team Project [2013N080]; Shenzhen Peacock Plan [KYPT20141016105435850]; Shenzhen Science and Technology Research Grant [JCYJ20140903102215536, JCYJ20150828093127698, ZDSY20130331145131323] FX This work was financially supported jointly by National Science Foundation of China (No. 51301004), Guangdong Innovation Team Project (No. 2013N080), Shenzhen Peacock Plan (Grant No. KYPT20141016105435850), and Shenzhen Science and Technology Research Grant (No. JCYJ20140903102215536, JCYJ20150828093127698 and ZDSY20130331145131323). NR 23 TC 1 Z9 1 U1 20 U2 35 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 22 PY 2016 VL 8 IS 24 SI SI BP 15361 EP 15368 DI 10.1021/acsami.6b03730 PG 8 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DP6CP UT WOS:000378584800052 PM 27237226 ER PT J AU Li, YZ Rios, O Keum, JK Chen, JH Kessler, MR AF Li, Yuzhan Rios, Orlando Keum, Jong K. Chen, Jihua Kessler, Michael R. TI Photoresponsive Liquid Crystalline Epoxy Networks with Shape Memory Behavior and Dynamic Ester Bonds SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE liquid crystalline networks; photoresponsive; shape memory; self-healing; thermomechanical properties ID POLYMER NETWORKS; LIGHT; ELASTOMERS; PHOTODRIVEN; COMPOSITES; ACTUATORS; GLASSY; DRIVEN AB Functional polymers are intelligent materials that can respond to a variety of external stimuli. However, these materials have not yet found widespread real world applications because of the difficulties in fabrication and the limited number of functional building blocks that can be incorporated into a material. Here, we demonstrate a simple route to incorporate three functional building blocks (azobenzene chromophores, liquid crystals, and dynamic covalent bonds) into an epoxy-based liquid crystalline network (LCN), in which an azobenzene-based epoxy monomer is polymerized with an aliphatic dicarboxylic acid to create exchangeable ester bonds that can be thermally activated. All three functional building blocks exhibited good compatibility, and the resulting materials exhibits various photomechanical, shape memory, and self-healing properties because of the azobenzene molecules, liquid crystals, and dynamic ester bonds, respectively. C1 [Li, Yuzhan; Kessler, Michael R.] Washington State Univ, Sch Mech & Mat Engn, POB 642920, Pullman, WA 99164 USA. [Rios, Orlando] Oak Ridge Natl Lab, Deposit Sci Grp, Oak Ridge, TN 37831 USA. [Keum, Jong K.; Chen, Jihua] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Kessler, MR (reprint author), Washington State Univ, Sch Mech & Mat Engn, POB 642920, Pullman, WA 99164 USA. EM MichaelR.Kessler@wsu.edu RI Chen, Jihua/F-1417-2011; Kessler, Michael/C-3153-2008; Rios, Orlando/E-6856-2017; Keum, Jong/N-4412-2015 OI Chen, Jihua/0000-0001-6879-5936; Kessler, Michael/0000-0001-8436-3447; Rios, Orlando/0000-0002-1814-7815; Keum, Jong/0000-0002-5529-1373 FU Air Force Office of Scientific Research [FA-9550-12-1-0108]; Division of Scientific User Facilities, U.S. Department of Energy; Critical Materials Institute, an Energy Innovation Hub - U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, and Advanced Manufacturing Office [DE-AC05-00OR22725]; UT-Battelle, LLC. FX The authors would like to thank Dr. Lei Li in the School of Mechanical and Materials Engineering at Washington State University for the helpful discussion in setting up the beamline. The majority of this work was supported by the Air Force Office of Scientific Research (Award FA-9550-12-1-0108). In addition, a portion of the research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy, managed by UT-Battelle, LLC, for the U.S. Department of Energy. Also, some of the research was sponsored by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, and Advanced Manufacturing Office, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. NR 36 TC 4 Z9 4 U1 40 U2 77 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 22 PY 2016 VL 8 IS 24 SI SI BP 15750 EP 15757 DI 10.1021/acsami.6b04374 PG 8 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA DP6CP UT WOS:000378584800098 PM 27245744 ER PT J AU Abraham, A Housel, LM Lininger, CN Bock, DC Jou, J Wang, F West, AC Marschilok, AC Takeuchi, KJ Takeuchi, ES AF Abraham, Alyson Housel, Lisa M. Lininger, Christianna N. Bock, David C. Jou, Jeffrey Wang, Feng West, Alan C. Marschilok, Amy C. Takeuchi, Kenneth J. Takeuchi, Esther S. TI Investigating the Complex Chemistry of Functional Energy Storage Systems: The Need for an Integrative, Multiscale (Molecular to Mesoscale) Perspective SO ACS CENTRAL SCIENCE LA English DT Article ID TRANSMISSION ELECTRON-MICROSCOPY; LITHIUM-ION BATTERIES; RAY-ABSORPTION SPECTROSCOPY; IRON-PHOSPHATE ELECTRODE; CRYSTALLITE SIZE CONTROL; NANOCRYSTALLINE MAGNETITE; STRUCTURAL-CHARACTERIZATION; DISCHARGE MODEL; EXAFS SPECTRA; FE3O4 AB Electric energy storage systems such as batteries can significantly impact society in a variety of ways, including facilitating the widespread deployment of portable electronic devices, enabling the use of renewable energy generation for local off grid situations and providing the basis of highly efficient power grids integrated with energy production, large stationary batteries, and the excess capacity from electric vehicles. A critical challenge for electric energy storage is understanding the basic science associated with the gap between the usable output of energy storage systems and their theoretical energy contents. The goal of overcoming this inefficiency is to achieve more useful work (w) and minimize the generation of waste heat (q). Minimization of inefficiency can be approached at the macro level, where bulk parameters are identified and manipulated, with optimization as an ultimate goal. However, such a strategy may not provide insight toward the complexities of electric energy storage, especially the inherent heterogeneity of ion and electron flux contributing to the local resistances at numerous interfaces found at several scale lengths within a battery. Thus, the ability to predict and ultimately tune these complex systems to specific applications, both current and future, demands not just parametrization at the bulk scale but rather specific experimentation and understanding over multiple length scales within the same battery system, from the molecular scale to the mesoscale. Herein, we provide a case study examining the insights and implications from multiscale investigations of a prospective battery material, Fe3O4. C1 [Abraham, Alyson; Housel, Lisa M.; Jou, Jeffrey; Marschilok, Amy C.; Takeuchi, Kenneth J.; Takeuchi, Esther S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Lininger, Christianna N.; West, Alan C.] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA. [Bock, David C.; Wang, Feng; Takeuchi, Esther S.] Brookhaven Natl Lab, Energy Sci Directorate, Upton, NY 11973 USA. [Marschilok, Amy C.; Takeuchi, Kenneth J.; Takeuchi, Esther S.] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. RP Marschilok, AC; Takeuchi, KJ; Takeuchi, ES (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.; Takeuchi, ES (reprint author), Brookhaven Natl Lab, Energy Sci Directorate, Upton, NY 11973 USA.; Marschilok, AC; Takeuchi, KJ; Takeuchi, ES (reprint author), SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. EM amy.marschilok@stonybrook.edu; kenneth.takeuchi.1@stonybrook.edu; esther.takeuchi@stonybrook.edu NR 60 TC 4 Z9 4 U1 5 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2374-7943 EI 2374-7951 J9 ACS CENTRAL SCI JI ACS Central Sci. PD JUN 22 PY 2016 VL 2 IS 6 BP 380 EP 387 DI 10.1021/acscentsci.6b00100 PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA DP7OZ UT WOS:000378690000006 PM 27413781 ER PT J AU Fetisov, EO Kuo, IFW Knight, C VandeVondele, J Van Voorhis, T Siepmann, JI AF Fetisov, Evgenii O. Kuo, I-Feng William Knight, Chris VandeVondele, Joost Van Voorhis, Troy Siepmann, J. Ilja TI First-Principles Monte Carlo Simulations of Reaction Equilibria in Compressed Vapors SO ACS CENTRAL SCIENCE LA English DT Article ID SPACE GAUSSIAN PSEUDOPOTENTIALS; UNITED-ATOM DESCRIPTION; PHASE-EQUILIBRIA; 1ST PRINCIPLES; TRANSFERABLE POTENTIALS; DENSITY FUNCTIONALS; ENSEMBLE; WATER; CHEMISTRY; MIXTURES AB Predictive modeling of reaction equilibria presents one of the grand challenges in the field of molecular simulation. Difficulties in the study of such systems arise from the need (i) to accurately model both strong, short-ranged interactions leading to the formation of chemical bonds and weak interactions arising from the environment, and (ii) to sample the range of time scales involving frequent molecular collisions, slow diffusion, and infrequent reactive events. Here we present a novel reactive first-principles Monte Carlo (RxFPMC) approach that allows for investigation of reaction equilibria without the need to prespecify a set of chemical reactions and their ideal-gas equilibrium constants. We apply RxFPMC to investigate a nitrogen/oxygen mixture at T = 3000 K and p = 30 GPa, i.e., conditions that are present in atmospheric lightning strikes and explosions. The RxFPMC simulations show that the solvation environment leads to a significantly enhanced NO concentration that reaches a maximum when oxygen is present in slight excess. In addition, the RxFPMC simulations indicate the formation of NO2 and N2O in mole fractions approaching 1%, whereas N-3 and O-3 are not observed. The equilibrium distributions obtained from the RxFPMC simulations agree well with those from a thermochemical computer code parametrized to experimental data. C1 [Fetisov, Evgenii O.; Siepmann, J. Ilja] Univ Minnesota, Dept Chem, 207 Pleasant St SE, Minneapolis, MN 55455 USA. [Fetisov, Evgenii O.; Siepmann, J. Ilja] Univ Minnesota, Chem Theory Ctr, 207 Pleasant St SE, Minneapolis, MN 55455 USA. [Kuo, I-Feng William] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA. [Knight, Chris] Argonne Natl Lab, Leadership Comp Facil, 9700 S Cass Ave, Argonne, IL 60439 USA. [VandeVondele, Joost] ETH, Dept Mat, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland. [Van Voorhis, Troy] MIT, Dept Chem, 77 Massachusetts Ave,Bldg 6-229, Cambridge, MA 02139 USA. [Siepmann, J. Ilja] Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA. RP Siepmann, JI (reprint author), Univ Minnesota, Dept Chem, 207 Pleasant St SE, Minneapolis, MN 55455 USA.; Siepmann, JI (reprint author), Univ Minnesota, Chem Theory Ctr, 207 Pleasant St SE, Minneapolis, MN 55455 USA.; Siepmann, JI (reprint author), Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA. EM siepmann@umn.edu RI VandeVondele, Joost/L-6420-2013; OI VandeVondele, Joost/0000-0002-0902-5111; Fetisov, Evgenii/0000-0002-2889-9850 NR 44 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2374-7943 EI 2374-7951 J9 ACS CENTRAL SCI JI ACS Central Sci. PD JUN 22 PY 2016 VL 2 IS 6 BP 409 EP 415 DI 10.1021/acscentsci.6b00095 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA DP7OZ UT WOS:000378690000010 PM 27413785 ER PT J AU Arranz, J Lundeby, KM Hassan, S Fuentes, LMZ Garces, PS Haaskjold, YL Bolkan, HA Krogh, KO Jongopi, J Mellesmo, S Josendal, O Opstad, A Svensen, E Kamara, AS Roberts, DP Stamper, PD Austin, P Moosa, AJ Marke, D Berg, A Blomberg, B Riera, M AF Arranz, Javier Lundeby, Karen Marie Hassan, Shoaib Zabala Fuentes, Luis Matias San Jose Garces, Pedro Haaskjold, Yngvar Lunde Bolkan, Hakon Angell Krogh, Kurt Osthuus Jongopi, James Mellesmo, Sindre Josendal, Ola Opstad, Asmund Svensen, Erling Kamara, Alfred Sandy Roberts, David P. Stamper, Paul D. Austin, Paula Moosa, Alfredo J. Marke, Dennis Berg, Ase Blomberg, Bjorn Riera, Melcior TI Clinical features of suspected Ebola cases referred to the Moyamba ETC, Sierra Leone: challenges in the later stages of the 2014 outbreak SO BMC INFECTIOUS DISEASES LA English DT Article DE Ebola virus disease (EVD); Sierra Leone; Clinical features of suspected Ebola patients; Diagnostic validation ID VIRUS DISEASE; VALIDATION; FREETOWN AB Background: The last ebola virus disease (EVD) outbreak has been the most important since 1976. EVD cases decreased drastically in Sierra Leone at the beginning of 2015. We aim to determine the clinical findings and evolution of patients admitted to an Ebola treatment center (ETC) during the epidemic's late phase. Methods: We analyze retrospectively data of patients admitted to the Moyamba ETC (December 2014-March 2015). Patients were classified in EVD or non-EVD patients according to the results of Ebola virus real-time reverse transcription polymerase chain reaction (ZAIRE-RT-PCR). Results: Seventy-five patients were included, 41.3 % were positive for ZAIRE-RT-PCR. More women (68 % vs 28 %, p = 0.001) were EVD-positive. More EVD patients had previous contact with an Ebola patient (74.2 % vs 36.3 %, p < 0. 001). At admission, EVD patients were more likely to have fatigue (96.7 %, p < 0.001), diarrhea (67.7 %, p = 0.002), and muscle pain (61.3 %, p = 0.009); but only objective fevers in 35.5 % of EVD patients. The most reliable criteria for diagnosis were: contact with an Ebola patient plus three WHO symptoms (LR+ = 3.7, 95 % CI = 1.9-7.3), and positive contact (LR+ = 2.3, 95 % CI = 1.15-4.20). Only 45.2 % of EVD patients developed fevers during stay, but 75 % developed gastrointestinal symptoms. Non-EVD patients had gastrointestinal problems (33 %), respiratory conditions (26.6 %), and others such as malaria, HIV or tuberculosis with a mortality rate of 11.4 %. vs 58 % in EVD group (p < 0.001). Conclusions: More non-EVD patients were admitted in the outbreak's late phases. The low percentage of initial fever highlights the need to emphasize the epidemiological information. EVD patients presented new symptoms getting worse and requiring closer follow-up. Diagnoses of non-EVD patients were diverse with a remarkable mortality, presenting a challenge for the health system. C1 [Arranz, Javier; Zabala Fuentes, Luis Matias; San Jose Garces, Pedro; Riera, Melcior] Med Mundo, Madrid, Spain. [Arranz, Javier] Arquitecte Bennassar Hlth Ctr, Palma de Mallorca, Illes Balears, Spain. [Arranz, Javier; Riera, Melcior] Inst Invest Palma IDISPA, Palma de Mallorca, Illes Balears, Spain. [Lundeby, Karen Marie] Oslo Univ Hosp, N-0450 Oslo, Norway. [Hassan, Shoaib] Field Epidemiol & Lab Training Program Pakistan F, Islamabad, Pakistan. [Haaskjold, Yngvar Lunde; Josendal, Ola; Svensen, Erling; Blomberg, Bjorn] Haukeland Hosp, N-5021 Bergen, Norway. [Bolkan, Hakon Angell; Krogh, Kurt Osthuus; Mellesmo, Sindre] St Olav Hosp, Trondheim, Norway. [Jongopi, James; Kamara, Alfred Sandy; Moosa, Alfredo J.; Marke, Dennis] Moyamba Dist Hosp, Moyamba, Moyamba, Sierra Leone. [Opstad, Asmund] Haraldsplass Diaconal Hosp, Bergen, Norway. [Svensen, Erling; Blomberg, Bjorn] Univ Bergen, Bergen, Norway. [Roberts, David P.; Stamper, Paul D.] MRIGlobal, Rockville, MD USA. [Austin, Paula] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Berg, Ase] Stavanger Univ Hosp, Stavanger, Norway. [Riera, Melcior] Hosp Son Espases, Palma de Mallorca, Spain. RP Arranz, J (reprint author), Med Mundo, Madrid, Spain.; Arranz, J (reprint author), Arquitecte Bennassar Hlth Ctr, Palma de Mallorca, Illes Balears, Spain.; Arranz, J (reprint author), Inst Invest Palma IDISPA, Palma de Mallorca, Illes Balears, Spain. EM jarranz@ibsalut.caib.es OI Arranz, Javier/0000-0003-0728-9751 NR 21 TC 0 Z9 0 U1 3 U2 5 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2334 J9 BMC INFECT DIS JI BMC Infect. Dis. PD JUN 22 PY 2016 VL 16 AR 308 DI 10.1186/s12879-016-1609-9 PG 9 WC Infectious Diseases SC Infectious Diseases GA DP6DP UT WOS:000378587400001 PM 27334891 ER PT J AU Zhang, H Kurley, JM Russell, JC Jang, J Talapin, DV AF Zhang, Hao Kurley, J. Matthew Russell, Jake C. Jang, Jaeyoung Talapin, Dmitri V. TI Solution-Processed, Ultrathin Solar Cells from CdCl3--Capped CdTe Nanocrystals: The Multiple Roles of CdCl3- Ligands SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID MATCHED MOLECULAR SOLDERS; QUANTUM-DOT SOLIDS; COLLOIDAL NANOCRYSTALS; GRAIN-GROWTH; SURFACE LIGANDS; TRANSISTORS; INTERFACES; TRANSPORT; DESIGN; HALIDE AB Solution-processed CdTe solar cells using CdTe nanocrystal (NC) ink may offer an economically viable route for large-scale manufacturing. Here we design a new CdCl3--capped CdTe NC ink by taking advantage of novel surface chemistry. In this ink, CdCl3- ligands act as surface ligands, sintering promoters, and dopants. Our solution chemistry allows obtaining very thin continuous layers of high-quality CdTe which is challenging for traditional vapor transport methods. Using benign solvents, in air, and without additional CdCl2 treatment, we obtain a well-sintered CdTe absorber layer from the new ink and demonstrate thin-film solar cells with power conversion efficiency over 10%, a record efficiency for sub 400 nm thick CdTe absorber layer. C1 [Zhang, Hao; Kurley, J. Matthew; Russell, Jake C.; Jang, Jaeyoung; Talapin, Dmitri V.] Univ Chicago, Dept Chem, 5735 S Ellis Ave, Chicago, IL 60637 USA. [Zhang, Hao; Kurley, J. Matthew; Russell, Jake C.; Jang, Jaeyoung; Talapin, Dmitri V.] Univ Chicago, James Franck Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA. [Talapin, Dmitri V.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. [Jang, Jaeyoung] Hanyang Univ, Dept Energy Engn, Seoul 133791, South Korea. RP Talapin, DV (reprint author), Univ Chicago, Dept Chem, 5735 S Ellis Ave, Chicago, IL 60637 USA.; Talapin, DV (reprint author), Univ Chicago, James Franck Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA.; Talapin, DV (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM dvtalapin@uchicago.edu OI Kurley, James/0000-0003-0592-0714 FU Department of Defense Office of Naval Research [N00014-13-1-0490]; Air Force Office of Scientific Research [FA9550-14-1-0367]; Department of Energy SunShot program [DE-EE0005312]; II-VI Foundation; NSF MRSEC Program [DMR-14-20703] FX We thank Gregory Pach and Bobby To at National Renewable Energy Laboratory and Qiti Guo at Materials Research Science and Engineering Center at University of Chicago for the help with cross-sectional SEM images. This work was supported by the Department of Defense Office of Naval Research under grant no. N00014-13-1-0490, Air Force Office of Scientific Research under grant no. FA9550-14-1-0367, Department of Energy SunShot program under award no. DE-EE0005312, and by II-VI Foundation. The work used facilities supported by the NSF MRSEC Program under award no. DMR-14-20703. NR 29 TC 4 Z9 4 U1 12 U2 32 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 22 PY 2016 VL 138 IS 24 BP 7464 EP 7467 DI 10.1021/jacs.6b03240 PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA DP6CN UT WOS:000378584600006 PM 27269672 ER PT J AU Lee, S Barin, G Ackerman, CM Muchenditsi, A Xu, J Reimer, JA Lutsenko, S Long, JR Chang, CJ AF Lee, Sumin Barin, Gokhan Ackerman, Cheri M. Muchenditsi, Abigael Xu, Jun Reimer, Jeffrey A. Lutsenko, Svetlana Long, Jeffrey R. Chang, Christopher J. TI Copper Capture in a Thioether-Functionalized Porous Polymer Applied to the Detection of Wilson's Disease SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID COVALENT ORGANIC FRAMEWORKS; CARBON-DIOXIDE CAPTURE; HEAVY-METAL IONS; AROMATIC FRAMEWORKS; FLUORESCENT SENSOR; CONTRAST AGENT; LIVING CELLS; ACID; REMOVAL; ADSORPTION AB Copper is an essential nutrient for life, but at the same time, hyperaccumulation of this redox-active metal in biological fluids and tissues is a hallmark of pathologies such as Wilson's and Menkes diseases, various neurodegenerative diseases, and toxic environmental exposure. Diseases characterized by copper hyperaccumulation are currently challenging to identify due to costly diagnostic tools that involve extensive technical workup. Motivated to create simple yet highly selective and sensitive diagnostic tools, we have initiated a program to develop new materials that can enable monitoring of copper levels in biological fluid samples without complex and expensive instrumentation. Herein, we report the design, synthesis, and properties of PAF-1-SMe, a robust three-dimensional porous aromatic framework (PAF) densely functionalized with thioether groups for selective capture and concentration of copper from biofluids as well as aqueous samples. PAF-1-SMe exhibits a high selectivity for copper over other biologically relevant metals, with a saturation capacity reaching over 600 mg/g. Moreover, the combination of PAF-1-SMe as a material for capture and concentration of copper from biological samples with 8-hydroxyquinoline as a colorimetric indicator affords a method for identifying aberrant elevations of copper in urine samples from mice with Wilson's disease and also tracing exogenously added copper in serum. This divide-and-conquer sensing strategy, where functional and robust porous materials serve as molecular recognition elements that can be used to capture and concentrate analytes in conjunction with molecular indicators for signal readouts, establishes a valuable starting point for the use of porous polymeric materials in noninvasive diagnostic applications. C1 [Lee, Sumin; Barin, Gokhan; Ackerman, Cheri M.; Long, Jeffrey R.; Chang, Christopher J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Chang, Christopher J.] Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA. [Xu, Jun; Reimer, Jeffrey A.; Long, Jeffrey R.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Chang, Christopher J.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Chang, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Reimer, Jeffrey A.; Long, Jeffrey R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Muchenditsi, Abigael; Lutsenko, Svetlana] Johns Hopkins Univ, Sch Med, Dept Physiol, Baltimore, MD 21205 USA. RP Long, JR; Chang, CJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Chang, CJ (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.; Long, JR (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.; Chang, CJ (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.; Chang, CJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA.; Long, JR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM jrlong@berkeley.edu; chrischang@berkeley.edu OI Xu, Jun/0000-0003-3507-0159 FU NIH [GM79465]; 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]; Miller Institute for Basic Research in Science; Fannie and John Hertz Foundation; Chemical Biology Training Grant from the NIH [T32 GM066698] FX We thank the NIH under award GM79465 for support of synthesis and biological studies in the laboratory of C.J.C. Efforts for material characterization in the laboratories of J.A.R and J.R.L. were supported by 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 DE-SC0001015. C.J.C. is an Investigator at the Howard Hughes Medical Institute. G.B. thanks the Miller Institute for Basic Research in Science for a postdoctoral fellowship. C.M.A. is supported by a fellowship from the Fannie and John Hertz Foundation and was also partially supported by a Chemical Biology Training Grant from the NIH (T32 GM066698). We also thank K. Colwell for scanning electron microscopy (SEM) images and Dr. Katie R. Meihaus for editorial assistance. NR 91 TC 5 Z9 5 U1 79 U2 135 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 22 PY 2016 VL 138 IS 24 BP 7603 EP 7609 DI 10.1021/jacs.6b02515 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA DP6CN UT WOS:000378584600032 PM 27285482 ER PT J AU Li, LW Cai, ZX Wu, QH Lo, WY Zhang, N Chen, LX Yu, LP AF Li, Lianwei Cai, Zhengxu Wu, Qinghe Lo, Wai-Yip Zhang, Na Chen, Lin X. Yu, Luping TI Rational Design of Porous Conjugated Polymers and Roles of Residual Palladium for Photocatalytic Hydrogen Production SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID COVALENT ORGANIC FRAMEWORK; GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT; SOLAR-CELLS; WATER; PERFORMANCE; EVOLUTION; CATALYST; STORAGE; 2,2'-BIPYRIDINE AB Developing highly efficient photocatalyts for water splitting is one of the grand challenges in solar energy conversion. Here, we report the rational design and synthesis of porous conjugated polymer (PCP) that photocatalytically generates hydrogen from water splitting. The design mimics natural photosynthetics systems with conjugated polymer component to harvest photons and the transition metal part to facilitate catalytic activities. A series of PCPs have been synthesized with different light harvesting chromophores and transition metal binding bipyridyl (bpy) sites. The photocatalytic activity of these bpy-containing PCPs can be greatly enhanced due to the improved light absorption, better wettability, local ordering structure, and the improved charge separation process. The PCP made of strong and fully conjugated donor chromophore DBD (M-4) shows the highest hydrogen production rate at similar to 33 itmol/h. The results indicate that copolymerization between a strong electron donor and weak electron acceptor into the same polymer chain is a useful strategy for developing efficient photocatalysts. This study also reveals that the residual palladium in the PCP networks plays a key role for the catalytic performance. The hydrogen generation activity of PCP photocatalyst can be further enhanced to 164 mu mol/h with an apparent quantum yield of 1.8% at 350 nm by loading 2 wt % of extra platinum co catalyst. C1 [Li, Lianwei; Cai, Zhengxu; Wu, Qinghe; Lo, Wai-Yip; Zhang, Na; Yu, Luping] Univ Chicago, Dept Chem, 929 East 57th St, Chicago, IL 60637 USA. [Li, Lianwei; Cai, Zhengxu; Wu, Qinghe; Lo, Wai-Yip; Zhang, Na; Yu, Luping] Univ Chicago, James Franck Inst, 929 East 57th St, Chicago, IL 60637 USA. [Chen, Lin X.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 South Cass Ave, Lemont, IL 60439 USA. [Chen, Lin X.] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA. RP Yu, LP (reprint author), Univ Chicago, Dept Chem, 929 East 57th St, Chicago, IL 60637 USA.; Yu, LP (reprint author), Univ Chicago, James Franck Inst, 929 East 57th St, Chicago, IL 60637 USA. EM lupingyu@uchicago.edu RI Zhang, Na/J-8312-2016 OI Zhang, Na/0000-0001-7680-0504 FU National Science Foundation [DMR-1263006, NSF- SEP-1229089]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, through Argonne National Laboratory [DE-AC02-06CH11357] FX This work is supported by the National Science Foundation (DMR-1263006 and NSF- SEP-1229089, LPY) and by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, through Argonne National Laboratory under contract no. DE-AC02-06CH11357. This work also benefited from NSF MRSEC at the University of Chicago. NR 37 TC 9 Z9 9 U1 73 U2 163 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 22 PY 2016 VL 138 IS 24 BP 7681 EP 7686 DI 10.1021/jacs.6b03472 PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA DP6CN UT WOS:000378584600040 PM 27254306 ER PT J AU Wang, JL Liu, KK Yan, J Wu, Z Liu, F Xiao, F Chang, ZF Wu, HB Cao, Y Russell, TP AF Wang, Jin-Liang Liu, Kai-Kai Yan, Jun Wu, Zhuo Liu, Feng Xiao, Fei Chang, Zheng-Feng Wu, Hong-Bin Cao, Yong Russell, Thomas P. TI Series of Multifluorine Substituted Oligomers for Organic Solar Cells with Efficiency over 9% and Fill Factor of 0.77 by Combination Thermal and Solvent Vapor Annealing SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID PROCESSED SMALL-MOLECULE; POWER CONVERSION EFFICIENCY; FIELD-EFFECT TRANSISTORS; PORPHYRIN SMALL-MOLECULE; BAND-GAP POLYMERS; BENZODITHIOPHENE UNIT; CONJUGATED POLYMERS; PHOTOVOLTAIC CELLS; SIDE-CHAINS; FLUORINE SUBSTITUTION AB We report the synthesis of a family of multifluorine substituted oligomers and the corresponding polymer that have the same backbones but different conjugation lengths and amounts of fluorine atoms on the backbone. The physical properties and photovoltaic performances of these materials were systematically investigated using optical absorption, charge mobility, atomic force microscopy, transmission electron microscopy, grazing incidence X-ray diffraction, resonant soft X-ray scattering methods, and photovoltaic devices. The power conversion efficiencies (PCEs) based on oligomers were much higher than that in the polymer. Moreover, the devices based on BIT6F and BIT10F, which have an axisymmetric electron-deficient difluorobenzothiadiazole as the central unit, gave slightly higher PCEs than those with centrosymmetric electron-rich indacenodithiophene (IDT) as the central unit (BIT4F or BIT8F). Using proper solvent vapor annealing (SVA), particularly using thermal annealing (TA) followed by SVA, the device performance could be significantly improved. Notably, the best PCE of 9.1% with a very high FF of 0.76 was achieved using the medium-sized oligomer BIT6F with the optimized film morphology. This efficiency is the highest value reported for organic solar cells from small molecules without rhodanine terminal group. More excitingly, devices from the shortest oligomer BIT4F showed an impressively high FF of 0.77 (the highest FF value reported for solution-processed small-molecule organic solar cells). These results indicate that photovoltaic performances of oligomers can be modulated through successive change in chain-length and fluorine atoms, alternating spatial symmetric core, and combined post-treatments. C1 [Wang, Jin-Liang; Liu, Kai-Kai; Wu, Zhuo; Xiao, Fei; Chang, Zheng-Feng] Beijing Inst Technol, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci, Minist Educ,Sch Chem, 5 South Zhongguancun St, Beijing 100081, Peoples R China. [Yan, Jun; Wu, Hong-Bin; Cao, Yong] S China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China. [Liu, Feng; Russell, Thomas P.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Wang, JL (reprint author), Beijing Inst Technol, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci, Minist Educ,Sch Chem, 5 South Zhongguancun St, Beijing 100081, Peoples R China.; Wu, HB (reprint author), S China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China.; Liu, F (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM jinlwang@bit.edu.cn; iamfengliu@gmail.com; hbwu@scut.edu.cn RI Liu, Feng/J-4361-2014 OI Liu, Feng/0000-0002-5572-8512 FU National Natural Science Foundation of China [21472012, 21202007, 51225301, 91333206, 51521002]; Thousand Youth Talents Plan of China; Beijing Natural Science Foundation [2152027]; U.S. Office of Naval Research [N00014-15-1-2244]; DOE, Office of Science, and Office of Basic Energy Sciences FX This work was financially supported by grants from the National Natural Science Foundation of China (No. 21472012, 21202007, 51225301, 91333206, 51521002); the Thousand Youth Talents Plan of China; Beijing Natural Science Foundation (2152027). F.L. and T.P.R were supported by the U.S. Office of Naval Research under Contract N00014-15-1-2244 and the DOE, Office of Science, and Office of Basic Energy Sciences. The authors thank Dr. Jinhu Dou and Prof. Jian Pei (Peking University) for the helping on the high temperature gel permeation chromatography (GPC) experiment. NR 99 TC 16 Z9 16 U1 68 U2 126 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 22 PY 2016 VL 138 IS 24 BP 7687 EP 7697 DI 10.1021/jacs.6b03495 PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA DP6CN UT WOS:000378584600041 PM 27225322 ER PT J AU Sosso, GC Chen, J Cox, SJ Fitzner, M Pedevilla, P Zen, A Michaelides, A AF Sosso, Gabriele C. Chen, Ji Cox, Stephen J. Fitzner, Martin Pedevilla, Philipp Zen, Andrea Michaelides, Angelos TI Crystal Nucleation in Liquids: Open Questions and Future Challenges in Molecular Dynamics Simulations SO CHEMICAL REVIEWS LA English DT Review ID HOMOGENEOUS ICE NUCLEATION; PHASE-CHANGE MATERIALS; LENNARD-JONES SYSTEM; METHANE HYDRATE NUCLEATION; METASTABLE ZONE WIDTH; HARD-SPHERE COLLOIDS; NO-MANS-LAND; DIFFERENTIAL SCANNING CALORIMETRY; DENSITY-FUNCTIONAL THEORY; FREESTANDING THIN-FILMS AB The nucleation of crystals in liquids is one of nature's most ubiquitous phenomena, playing an important role in areas such as climate change and the production of drugs. As the early stages of nucleation involve exceedingly small time and length scales, atomistic computer simulations can provide unique insights into the microscopic aspects of crystallization. In this review, we take stock of the numerous molecular dynamics simulations that, in the past few decades, have unraveled crucial aspects of crystal nucleation in liquids. We put into context the theoretical framework of classical nucleation theory and the state-of-the-art computational methods by reviewing simulations of such processes as ice nucleation and the crystallization of molecules in solutions. We shall see that molecular dynamics simulations have provided key insights into diverse nucleation scenarios, ranging from colloidal particles to natural gas hydrates, and that, as a result, the general applicability of classical nucleation theory has been repeatedly called into question. We have attempted to identify the most pressing open questions in the field. We believe that, by improving (i) existing interatomic potentials and (ii) currently available enhanced sampling methods, the community can move toward accurate investigations of realistic systems of practical interest, thus bringing simulations a step closer to experiments. C1 [Michaelides, Angelos] UCL, London Ctr Nanotechnol, Thomas Young Ctr, Gower St, London WC1E 6BT, England. UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England. [Cox, Stephen J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Michaelides, A (reprint author), UCL, London Ctr Nanotechnol, Thomas Young Ctr, Gower St, London WC1E 6BT, England. EM angelos.michaelides@ucl.ac.uk OI Sosso, Gabriele Cesare/0000-0002-6156-7399; Fitzner, Martin/0000-0001-6790-4301; Michaelides, Angelos/0000-0002-9169-169X FU European Research Council under the European Union [616121]; Royal Society FX This work was supported by the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement 616121 (HeteroIce project). A.M. was also supported by the Royal Society through a Royal Society Wolfson Research Merit Award. We gratefully acknowledge Dr. Matteo Salvalaglio, Dr. Gareth Tribello, Dr. Richard Sear, and Prof. Daan Frenkel for insightful discussions and for reading an earlier version of the manuscript. NR 449 TC 22 Z9 22 U1 85 U2 179 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0009-2665 EI 1520-6890 J9 CHEM REV JI Chem. Rev. PD JUN 22 PY 2016 VL 116 IS 12 BP 7078 EP 7116 DI 10.1021/acs.chemrev.5b00744 PG 39 WC Chemistry, Multidisciplinary SC Chemistry GA DP6CR UT WOS:000378585000004 PM 27228560 ER PT J AU Makhonina, EV Meduedeva, AE Dubasoua, VS Volkou, VV Politov, YA Eremenko, IL AF Makhonina, E. V. Meduedeva, A. E. Dubasoua, V. S. Volkou, V. V. Politov, Yu. A. Eremenko, I. L. TI A new coating for improving the electrochemical performance of cathode materials SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 1st International Symposium on Materials for Energy Storage and Conversion (ESC-IS) CY SEP 07-09, 2015 CL Middle E Tech Univ, Ankara, TURKEY HO Middle E Tech Univ DE Li-ion battery; Cathode material; Epitaxial coating; Alumina; Carbon ID LITHIUM-ION BATTERIES; POSITIVE ELECTRODE; SURFACE MODIFICATION; LICOO2; ALUMINA AB The layered LiNi0.40Mn0.40Co0.O-20(2) compound was synthesized and modified with a mixed alumina-carbon coating by a simple soft chemical route. The simultaneous presence of alumina and carbon on the surface of coated samples was proved by ICP-AES, chemical analysis, XP spectroscopy, SEM microanalysis and local electron diffraction. For the first time, we show that the alumina epitaxial layer is formed on basal {001} facets of cathode grains, whereas side-view facets, like {010}, remain free from crystalline alpha-Al2O3, thus leaving them easy for Li-ion diffusion into cathode structure. An amorphous carbon film was used here for better conductivity of the coating layer and prevention of the electrical contact loss between cathode grains. Electrochemical tests revealed that the mixed alumina-carbon coating applied on LiNi0.40Mn0.40Co0.O-20(2) stabilizes the surface structure and improves the cycling performance (3-4.5 V) and rate capability of cathodes on their basis compared with the pristine and alumina-coated LiNi0.40Mn0.40Co0.O-20(2) samples. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. C1 [Makhonina, E. V.; Meduedeva, A. E.; Volkou, V. V.; Politov, Yu. A.; Eremenko, I. L.] Russian Acad Sci, NS Kurnakov Inst Gen & Inorgan Chem, 31 Leninsky Pr, Moscow 119991, Russia. [Dubasoua, V. S.] Sci Res Inst Elect Carbon Prod, Per Gorki 1, Elect 142455, Moscow Region, Russia. [Volkou, V. V.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Makhonina, EV (reprint author), Russian Acad Sci, NS Kurnakov Inst Gen & Inorgan Chem, 31 Leninsky Pr, Moscow 119991, Russia. EM elenamakhonina@mail.ru RI Medvedeva, Anna/N-3724-2015; Makhonina, Elena/F-9833-2014; Eremenko, Igor/N-7242-2015 OI Medvedeva, Anna/0000-0002-5840-3625; Makhonina, Elena/0000-0001-9960-9139; Eremenko, Igor/0000-0001-6861-1404 NR 19 TC 1 Z9 1 U1 10 U2 24 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD JUN 22 PY 2016 VL 41 IS 23 SI SI BP 9901 EP 9907 DI 10.1016/j.ijhydene.2016.02.091 PG 7 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA DP2YL UT WOS:000378359400025 ER PT J AU Mishra, SK Gupta, MK Mittal, R Kolesnikov, AI Chaplot, SL AF Mishra, S. K. Gupta, M. K. Mittal, R. Kolesnikov, A. I. Chaplot, S. L. TI Spin-phonon coupling and high-pressure phase transitions of RMnO3 (R = Ca and Pr): An inelastic neutron scattering and first-principles study SO PHYSICAL REVIEW B LA English DT Article ID METAL-INSULATOR-TRANSITION; MAGNETIC-PROPERTIES; CAMNO3; DIFFRACTION; PR1-XCAXMNO3; PEROVSKITES; MANGANITES; VISUALIZATION; PRMNO3; OXIDE AB We report inelastic neutron scattering measurements over 7-1251 K in CaMnO3 covering various phase transitions, and over 6-150 K in PrMnO3 covering the magnetic transition. The excitations around 20 meV in CaMnO3 and at 17 meV in PrMnO3 at low temperatures are found to be associated with magnetic origin. We observe coherent magnetic neutron scattering in localized regions in reciprocal space and show it to arise from long-range correlated magnetic spin-waves below the magnetic transition temperature (T-N) and short-range stochastic spin-spin fluctuations above TN. In spite of the similarity of the structure of the two compounds, the neutron inelastic spectrum of PrMnO3 exhibits broad features at 150 K unlike well-defined peaks in the spectrum of CaMnO3. This might result from the difference in the nature of interactions in the two compounds (magnetic and Jahn-Teller distortion). Ab initio phonon calculations have been used to interpret the observed phonon spectra. The ab initio calculations at high pressures show that the variations of Mn-O distances are isotropic for CaMnO3 and highly anisotropic for PrMnO3. The calculation in PrMnO3 shows the suppression of Jahn-Teller distortion and simultaneous insulator-to-metal transition. It appears that this transition may not be associated with the occurrence of the tetragonal phase above 20 GPa as reported in the literature, since the tetragonal phase is found to be dynamically unstable, although it is found to be energetically favored over the orthorhombic phase above 20 GPa. CaMnO3 does not show any phase transition up to 60 GPa. C1 [Mishra, S. K.; Gupta, M. K.; Mittal, R.; Chaplot, S. L.] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India. [Kolesnikov, A. I.] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. RP Mishra, SK (reprint author), Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India. FU Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy; Department of Atomic Energy, India FX The neutron scattering experiments at Oak Ridge National Laboratory's Spallation Neutron Source were sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. S.L.C. would like to thank the Department of Atomic Energy, India, for the award of the Raja Ramanna Fellowship. NR 81 TC 0 Z9 0 U1 14 U2 21 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 22 PY 2016 VL 93 IS 21 AR 214306 DI 10.1103/PhysRevB.93.214306 PG 17 WC Physics, Condensed Matter SC Physics GA DP0RX UT WOS:000378198000002 ER PT J AU Shen, CP Yuan, CZ Ban, Y Aihara, H Asner, DM Badhrees, I Bakich, AM Barberio, E Behera, P Bhardwaj, V Bhuyan, B Biswal, J Bondar, A Bonvicini, G Bozek, A Bracko, M Browder, TE Cervenkov, D Chekelian, V Chen, A Cheon, BG Chilikin, K Chistov, R Cho, K Chobanova, V Choi, SK Choi, Y Cinabro, D Dalseno, J Danilov, M Dash, N Di Carlo, S Dolezal, Z Drasal, Z Dutta, D Eidelman, S Farhat, H Fast, JE Ferber, T Fulsom, BG Gaur, V Gabyshev, N Garmash, A Goldenzweig, P Haba, J Hayasaka, K Hayashii, H Hou, WS Iijima, T Inguglia, G Ishikawa, A Itoh, R Jacobs, WW Jeon, HB Joo, KK Julius, T Kang, KH Kim, DY Kim, JB Kim, KT Kim, SH Kim, YJ Kinoshita, K Kodys, P Korpar, S Kotchetkov, D Krizan, P Krokovny, P Kuhr, T Kuzmin, A Kwon, YJ Lange, JS Li, CH Li, H Li, L Li, Y Gioi, LL Libby, J Liventsev, D Luo, T Masuda, M Matsuda, T Matvienko, D Moll, A Moon, HK Mussa, R Nakao, M Nanut, T Nath, KJ Natkaniec, Z Nayak, M Negishi, K Nishida, S Ogawa, S Okuno, S Olsen, SL Pakhlov, P Pakhlova, G Pal, B Pestotnik, R Petric, M Piilonen, LE Pulvermacher, C Ritter, M Rostomyan, A Sakai, Y Sandilya, S Santelj, L Sanuki, T Savinov, V Schluter, T Schneider, O Schnell, G Schwanda, C Seino, Y Senyo, K Seon, O Seong, IS Sevior, ME Shibata, TA Shiu, JG Simon, F Sokolov, A Solovieva, E Staric, M Sumiyoshi, T Takizawa, M Tanida, K Tenchini, F Trabelsi, K Uchida, M Uglov, T Unno, Y Uno, S Varner, G Vinokurova, A Vorobyev, V Wang, CH Wang, MZ Wang, P Wang, XL Watanabe, M Watanabe, Y Williams, KM Won, E Yamaoka, J Yang, SD Yashchenko, S Yook, Y Yusa, Y Zhang, ZP Zhilich, V Zhukova, V Zhulanov, V Zupanc, A AF Shen, C. P. Yuan, C. Z. Ban, Y. Aihara, H. Asner, D. M. Badhrees, I. Bakich, A. M. Barberio, E. Behera, P. Bhardwaj, V. Bhuyan, B. Biswal, J. Bondar, A. Bonvicini, G. Bozek, A. Bracko, M. Browder, T. E. Cervenkov, D. Chekelian, V. Chen, A. Cheon, B. G. Chilikin, K. Chistov, R. Cho, K. Chobanova, V. Choi, S. -K. Choi, Y. Cinabro, D. Dalseno, J. Danilov, M. Dash, N. Di Carlo, S. Dolezal, Z. Drasal, Z. Dutta, D. Eidelman, S. Farhat, H. Fast, J. E. Ferber, T. Fulsom, B. G. Gaur, V. Gabyshev, N. Garmash, A. Goldenzweig, P. Haba, J. Hayasaka, K. Hayashii, H. Hou, W. -S. Iijima, T. Inguglia, G. Ishikawa, A. Itoh, R. Jacobs, W. W. Jeon, H. B. Joo, K. K. Julius, T. Kang, K. H. Kim, D. Y. Kim, J. B. Kim, K. T. Kim, S. H. Kim, Y. J. Kinoshita, K. Kodys, P. Korpar, S. Kotchetkov, D. Krizan, P. Krokovny, P. Kuhr, T. Kuzmin, A. Kwon, Y. -J. Lange, J. S. Li, C. H. Li, H. Li, L. Li, Y. Gioi, L. Li Libby, J. Liventsev, D. Luo, T. Masuda, M. Matsuda, T. Matvienko, D. Moll, A. Moon, H. K. Mussa, R. Nakao, M. Nanut, T. Nath, K. J. Natkaniec, Z. Nayak, M. Negishi, K. Nishida, S. Ogawa, S. Okuno, S. Olsen, S. L. Pakhlov, P. Pakhlova, G. Pal, B. Pestotnik, R. Petric, M. Piilonen, L. E. Pulvermacher, C. Ritter, M. Rostomyan, A. Sakai, Y. Sandilya, S. Santelj, L. Sanuki, T. Savinov, V. Schlueter, T. Schneider, O. Schnell, G. Schwanda, C. Seino, Y. Senyo, K. Seon, O. Seong, I. S. Sevior, M. E. Shibata, T. -A. Shiu, J. -G. Simon, F. Sokolov, A. Solovieva, E. Staric, M. Sumiyoshi, T. Takizawa, M. Tanida, K. Tenchini, F. Trabelsi, K. Uchida, M. Uglov, T. Unno, Y. Uno, S. Varner, G. Vinokurova, A. Vorobyev, V. Wang, C. H. Wang, M. -Z. Wang, P. Wang, X. L. Watanabe, M. Watanabe, Y. Williams, K. M. Won, E. Yamaoka, J. Yang, S. D. Yashchenko, S. Yook, Y. Yusa, Y. Zhang, Z. P. Zhilich, V. Zhukova, V. Zhulanov, V. Zupanc, A. CA Belle Collaboration TI Search for XYZ states in Upsilon(1S) inclusive decays SO PHYSICAL REVIEW D LA English DT Article ID J/PSI PRODUCTION; BELLE; IDENTIFICATION; KEKB AB The branching fractions of the Upsilon(1S) inclusive decays into final states with a J/psi or psi(2S) are measured with improved precision to be B Upsilon(1S) -> J/psi + anything = (5.25 +/- 0.13(stat) +/- 0.25(syst) x 10(-4) and B Upsilon(1S) -> psi(2S) + anything = (1.23 +/- 0.17(stat) +/- 0.11(syst)) x 10(-4). The first search for Upsilon(1S) decays into XYZ states that decay into a J/psi or a psi(2S) plus one or two charged tracks yields no significant signals for XYZ states in any of the examined decay modes, and upper limits on their production rates in Upsilon(1S) inclusive decays are determined. C1 [Schnell, G.] Univ Basque Country UPV EHU, Bilbao 48080, Spain. [Shen, C. P.] Beihang Univ, Beijing 100191, Peoples R China. [Bondar, A.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Vinokurova, A.; Vorobyev, V.; Zhilich, V.; Zhulanov, V.] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia. [Cervenkov, D.; Dolezal, Z.; Drasal, Z.; Kodys, P.] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic. [Joo, K. K.] Chonnam Natl Univ, Kwangju 660701, South Korea. [Kinoshita, K.; Pal, B.; Sandilya, S.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Ferber, T.; Inguglia, G.; Rostomyan, A.; Yashchenko, S.] DESY, D-22607 Hamburg, Germany. [Lange, J. S.] Univ Giessen, D-35392 Giessen, Germany. [Haba, J.; Itoh, R.; Nakao, M.; Nishida, S.; Sakai, Y.; Trabelsi, K.; Uno, S.] SOKENDAI Grad Univ Adv Studies, Hayama 2400193, Japan. [Choi, S. -K.] Gyeongsang Natl Univ, Chinju 660701, South Korea. [Cheon, B. G.; Kim, S. H.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea. [Browder, T. E.; Kotchetkov, D.; Seong, I. S.] Univ Hawaii, Honolulu, HI 96822 USA. [Haba, J.; Itoh, R.; Liventsev, D.; Nakao, M.; Nishida, S.; Sakai, Y.; Santelj, L.; Trabelsi, K.; Uno, S.; Varner, G.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Schnell, G.] Ikerbasque, Basque Fdn Sci, Bilbao 48013, Spain. [Bhardwaj, V.] Indian Inst Sci Educ & Res Mohali, Sas Nagar 140306, India. [Dash, N.] Indian Inst Technol Bhubaneswar, Satya Nagar 751007, India. [Bhuyan, B.; Nath, K. J.] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India. [Libby, J.] Indian Inst Technol Madras, Madras 600036, Tamil Nadu, India. [Behera, P.; Li, H.] Indiana Univ, Bloomington, IN 47408 USA. [Yuan, C. Z.; Wang, P.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. [Schwanda, C.] Inst High Energy Phys, A-1050 Vienna, Austria. [Sokolov, A.] Inst High Energy Phys, Protvino 142281, Russia. [Mussa, R.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Biswal, J.; Bracko, M.; Korpar, S.; Krizan, P.; Nanut, T.; Pestotnik, R.; Petric, M.; Staric, M.; Zupanc, A.] Jozef Stefan Inst, Ljubljana 1000, Slovenia. [Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan. [Goldenzweig, P.; Pulvermacher, C.] Karlsruher Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany. [Badhrees, I.] King Abdulaziz City Sci & Technol, Riyadh 11442, Saudi Arabia. [Cho, K.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea. [Kim, J. B.; Kim, K. T.; Moon, H. K.; Won, E.] Korea Univ, Seoul 136713, South Korea. [Jeon, H. B.; Kang, K. H.] Kyungpook Natl Univ, Daegu 702701, South Korea. [Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Chilikin, K.; Chistov, R.; Danilov, M.; Pakhlov, P.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia. [Krizan, P.; Zupanc, A.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia. [Kuhr, T.; Ritter, M.; Schlueter, T.] Univ Munich, D-80539 Munich, Germany. [Bracko, M.; Korpar, S.] Univ Maribor, Maribor 2000, Slovenia. [Chekelian, V.; Chobanova, V.; Dalseno, J.; Gioi, L. Li; Moll, A.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Barberio, E.; Julius, T.; Li, C. H.; Sevior, M. E.; Tenchini, F.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Matsuda, T.] Miyazaki Univ, Miyazaki 8892192, Japan. [Chilikin, K.; Chistov, R.; Danilov, M.; Pakhlov, P.; Zhukova, V.] Moscow Phys Engn Inst, Moscow 115409, Russia. [Pakhlova, G.; Solovieva, E.; Uglov, T.] Moscow Inst Phys & Technol, Moscow 141700, Moscow Region, Russia. [Iijima, T.; Seon, O.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan. [Iijima, T.] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan. [Hayashii, H.] Nara Womens Univ, Nara 6308506, Japan. [Chen, A.] Natl Cent Univ, Chungli 32054, Taiwan. [Wang, C. H.] Natl United Univ, Miaoli 36003, Taiwan. [Hou, W. -S.; Shiu, J. -G.; Wang, M. -Z.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. [Bozek, A.; Natkaniec, Z.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland. [Hayasaka, K.; Seino, Y.; Watanabe, M.; Yusa, Y.] Niigata Univ, Niigata 9502181, Japan. [Bondar, A.; Eidelman, S.; Gabyshev, N.; Garmash, A.; Jacobs, W. W.; Krokovny, P.; Kuzmin, A.; Matvienko, D.; Vinokurova, A.; Vorobyev, V.; Zhilich, V.; Zhulanov, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia. [Asner, D. M.; Fast, J. E.; Fulsom, B. G.; Yamaoka, J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ban, Y.; Yang, S. D.] Peking Univ, Beijing 100871, Peoples R China. [Luo, T.; Savinov, V.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Li, L.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Olsen, S. L.; Tanida, K.] Seoul Natl Univ, Seoul 151742, South Korea. [Takizawa, M.] Showa Pharmaceut Univ, Tokyo 1948543, Japan. [Kim, D. Y.] Soongsil Univ, Seoul 156743, South Korea. [Choi, Y.] Sungkyunkwan Univ, Suwon 440746, South Korea. [Bakich, A. M.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Badhrees, I.] Univ Tabuk, Dept Phys, Fac Sci, Tabuk 71451, Saudi Arabia. [Dutta, D.; Gaur, V.] 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. [Ishikawa, A.; Negishi, K.; Sanuki, T.] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan. [Masuda, M.] Univ Tokyo, Earthquake Res Inst, Tokyo 1130032, Japan. [Aihara, H.] 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. [Li, Y.; Liventsev, D.; Piilonen, L. E.; Wang, X. L.; Williams, K. M.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA. [Bonvicini, G.; Cinabro, D.; Di Carlo, S.; Farhat, H.; Nayak, M.] Wayne State Univ, Detroit, MI 48202 USA. [Senyo, K.] Yamagata Univ, Yamagata 9908560, Japan. [Kwon, Y. -J.; Yook, Y.] Yonsei Univ, Seoul 120749, South Korea. RP Shen, CP (reprint author), Beihang Univ, Beijing 100191, Peoples R China. RI Aihara, Hiroaki/F-3854-2010; Danilov, Mikhail/C-5380-2014; Uglov, Timofey/B-2406-2014; Zhukova, Valentina/C-8878-2016; Chilikin, Kirill/B-4402-2014; Chistov, Ruslan/B-4893-2014; Pakhlova, Galina/C-5378-2014; Cervenkov, Daniel/D-2884-2017; Solovieva, Elena/B-2449-2014; OI Aihara, Hiroaki/0000-0002-1907-5964; Danilov, Mikhail/0000-0001-9227-5164; Uglov, Timofey/0000-0002-4944-1830; Zhukova, Valentina/0000-0002-8253-641X; Chilikin, Kirill/0000-0001-7620-2053; Chistov, Ruslan/0000-0003-1439-8390; Pakhlova, Galina/0000-0001-7518-3022; Cervenkov, Daniel/0000-0002-1865-741X; Solovieva, Elena/0000-0002-5735-4059; Inguglia, Gianluca/0000-0003-0331-8279 FU Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan; Japan Society for the Promotion of Science (JSPS); Tau-Lepton Physics Research Center of Nagoya University; Australian Research Council; Austrian Science Fund [P 22742-N16, P 26794-N20]; National Natural Science Foundation of China [10575109, 10775142, 10875115, 11175187, 11475187, 11575017]; Chinese Academy of Science Center for Excellence in Particle Physics; Ministry of Education, Youth and Sports of the Czech Republic [LG14034]; Carl Zeiss Foundation; Deutsche Forschungsgemeinschaft; Excellence Cluster Universe; VolkswagenStiftung; Department of Science and Technology of India; Istituto Nazionale di Fisica Nucleare of Italy; WCU program of the Ministry of Education, National Research Foundation (NRF) of Korea [2011-0029457, 2012-0008143, 2012R1A1A2008330, 2013R1A1A3007772, 2014R1A2A2A01005286, 2014R1A2A2A0100 2734, 2015R1A2A2A01003280, 2015H1 A2A1033649]; Basic Research Lab program under NRF Grant, Center for Korean J-PARC Users [KRF-2011-0020333, NRF-2013K1A3A7A06056592]; Brain Korea 21-Plus program; Radiation Science Research Institute; Polish Ministry of Science and Higher Education; National Science Center; Ministry of Education and Science of the Russian Federation; Russian Foundation for Basic Research; Slovenian Research Agency; Ikerbasque (Spain); Basque Foundation for Science (Spain); Euskal Herriko Unibertsitatea (UPV/EHU) (Spain) [UFI 11/55]; Swiss National Science Foundation; Ministry of Education of Taiwan; Ministry of Science and Technology of Taiwan; U.S. Department of Energy; National Science Foundation; MEXT; JSPS FX We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, the National Institute of Informatics, and the PNNL/EMSL computing group for valuable computing and SINET4 network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council; Austrian Science Fund under Grants No. P 22742-N16 and No. P 26794-N20; the National Natural Science Foundation of China under Contracts No. 10575109, No. 10775142, No. 10875115, No. 11175187, No. 11475187 and No. 11575017; the Chinese Academy of Science Center for Excellence in Particle Physics; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LG14034; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; the WCU program of the Ministry of Education, National Research Foundation (NRF) of Korea Grants No. 2011-0029457, No. 2012-0008143, No. 2012R1A1A2008330, No. 2013R1A1A3007772, No. 2014R1A2A2A01005286, No. 2014R1A2A2A0100 2734, No. 2015R1A2A2A01003280, No. 2015H1 A2A1033649; the Basic Research Lab program under NRF Grant No. KRF-2011-0020333, Center for Korean J-PARC Users, No. NRF-2013K1A3A7A06056592; the Brain Korea 21-Plus program and Radiation Science Research Institute; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Education and Science of the Russian Federation and the Russian Foundation for Basic Research; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science and the Euskal Herriko Unibertsitatea (UPV/EHU) under program UFI 11/55 (Spain); the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the U.S. Department of Energy and the National Science Foundation. This work is supported by a Grant-in-Aid from MEXT for Science Research in a Priority Area ("New Development of Flavor Physics") and from JSPS for Creative Scientific Research ("Evolution of Tau-lepton Physics"). NR 39 TC 1 Z9 1 U1 4 U2 9 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 22 PY 2016 VL 93 IS 11 AR 112013 DI 10.1103/PhysRevD.93.112013 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP0UD UT WOS:000378204500001 ER PT J AU Xue, DQ Yuan, RH Zhou, YM Xue, DZ Lookman, T Zhang, GJ Ding, XD Sun, J AF Xue, Deqing Yuan, Ruihao Zhou, Yumei Xue, Dezhen Lookman, Turab Zhang, Guojun Ding, Xiangdong Sun, Jun TI Design of High Temperature Ti-Pd-Cr Shape Memory Alloys with Small Thermal Hysteresis SO SCIENTIFIC REPORTS LA English DT Article ID MARTENSITIC-TRANSFORMATION; THIN-FILMS; DEPENDENCE; STABILITY; BEHAVIOR; FATIGUE; SEARCH; AU AB The large thermal hysteresis (Delta T) during the temperature induced martensitic transformation is a major obstacle to the functional stability of shape memory alloys (SMAs), especially for high temperature applications. We propose a design strategy for finding SMAs with small thermal hysteresis. That is, a small Delta T can be achieved in the compositional crossover region between two different martensitic transformations with opposite positive and negative changes in electrical resistance at the transformation temperature. We demonstrate this for a high temperature ternary Ti-Pd-Cr SMA by achieving both a small Delta T and high transformation temperature. We propose two possible underlying physics governing the reduction in Delta T. One is that the interfacial strain is accommodated at the austenite/martensite interface via coexistence of B19 and 9R martensites. The other is that one of transformation eigenvalues equal to 1, i.e., lambda(2) = 1, indicating a perfect coherent interface between austenite and martensite. Our results are not limited to Ti-Pd-Cr SMAs but potentially provide a strategy for searching for SMAs with small thermal hysteresis. C1 [Xue, Deqing; Yuan, Ruihao; Zhou, Yumei; Xue, Dezhen; Zhang, Guojun; Ding, Xiangdong; Sun, Jun] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China. [Xue, Deqing; Zhang, Guojun] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China. [Xue, Dezhen; Lookman, Turab] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Xue, DQ; Zhang, GJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.; Xue, DQ; Zhang, GJ (reprint author), Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China. EM xuedezhen@mail.xjtu.edu.cn; zhangguojun@xaut.edu.cn RI XUE, Dezhen/A-6062-2010 OI XUE, Dezhen/0000-0001-6132-1236 FU National Basic Research Program of China [2012CB619401]; National Natural Science Foundation of China [51321003, 51571156, 51302209, 51431007, 51320105014]; 111 project of China [B06025]; LDRD-DR program at Los Alamos National Laboratory FX The authors gratefully acknowledge the support of National Basic Research Program of China (Grant No. 2012CB619401), the National Natural Science Foundation of China (Grant Nos 51571156, 51321003, 51571156, 51302209, 51431007, and 51320105014), and 111 project of China (B06025). XD and TL are also grateful to the LDRD-DR program at Los Alamos National Laboratory for support. NR 39 TC 0 Z9 0 U1 14 U2 19 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 22 PY 2016 VL 6 AR 28244 DI 10.1038/srep28244 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP0ZR UT WOS:000378220400001 PM 27328764 ER PT J AU Mickel, PR Hughart, D Lohn, AJ Gao, XJ Mamaluy, D Marinella, MJ AF Mickel, Patrick R. Hughart, David Lohn, Andrew J. Gao, Xujiao Mamaluy, Denis Marinella, Matthew J. TI Power signatures of electric field and thermal switching regimes in memristive SET transitions SO JOURNAL OF PHYSICS D-APPLIED PHYSICS LA English DT Article DE RRAM; memristor; conducting filament; switching mechanisms; resistive switching ID DRIVEN ION MIGRATION; TAOX BIPOLAR-RERAM; RESISTIVE SWITCHES; DATA RETENTION; MEMORIES; MECHANISMS; EVOLUTION AB We present a study of the 'snap-back' regime of resistive switching hysteresis in bipolar TaOx memristors, identifying power signatures in the electronic transport. Using a simple model based on the thermal and electric field acceleration of ionic mobilities, we provide evidence that the 'snap-back' transition represents a crossover from a coupled thermal and electric-field regime to a primarily thermal regime, and is dictated by the reconnection of a ruptured conducting filament. We discuss how these power signatures can be used to limit filament radius growth, which is important for operational properties such as power, speed, and retention. C1 [Mickel, Patrick R.; Hughart, David; Lohn, Andrew J.; Gao, Xujiao; Mamaluy, Denis; Marinella, Matthew J.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Mickel, PR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM prmicke@sandia.gov NR 24 TC 0 Z9 0 U1 6 U2 16 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0022-3727 EI 1361-6463 J9 J PHYS D APPL PHYS JI J. Phys. D-Appl. Phys. PD JUN 22 PY 2016 VL 49 IS 24 AR 245103 DI 10.1088/0022-3727/49/24/245103 PG 4 WC Physics, Applied SC Physics GA DN9UV UT WOS:000377427100014 ER PT J AU Abdeljawad, F Medlin, DL Zimmerman, JA Hattar, K Foiles, SM AF Abdeljawad, F. Medlin, D. L. Zimmerman, J. A. Hattar, K. Foiles, S. M. TI A diffuse interface model of grain boundary faceting SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID PHASE-FIELD MODEL; CENTERED-CUBIC METALS; ANISOTROPIC SURFACES; CRYSTAL-SURFACES; VECTOR THERMODYNAMICS; GROWTH; ENERGY; EVOLUTION; MOTION; ALUMINUM AB Interfaces, free or internal, greatly influence the physical properties and stability of materials microstructures. Of particular interest are the processes that occur due to anisotropic interfacial properties. In the case of grain boundaries (GBs) in metals, several experimental observations revealed that an initially flat GB may facet into hill-and-valley structures with well defined planes and corners/edges connecting them. Herein, we present a diffuse interface model that is capable of accounting for strongly anisotropic GB properties and capturing the formation of hill-and-valley morphologies. The hallmark of our approach is the ability to independently examine the various factors affecting GB faceting and subsequent facet coarsening. More specifically, our formulation incorporates higher order expansions to account for the excess energy due to facet junctions and their non-local interactions. As a demonstration of the modeling capability, we consider the Sigma 5 < 001 > tilt GB in body-centered-cubic iron, where faceting along the {210} and {310} planes was experimentally observed. Atomistic calculations were utilized to determine the inclination-dependent GB energy, which was then used as an input in our model. Linear stability analysis and simulation results highlight the role of junction energy and associated non-local interactions on the resulting facet length scales. Broadly speaking, our modeling approach provides a general framework to examine the microstructural stability of polycrystalline systems with highly anisotropic GBs. Published by AIP Publishing. C1 [Abdeljawad, F.; Hattar, K.; Foiles, S. M.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Medlin, D. L.; Zimmerman, J. A.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Abdeljawad, F (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX We thank Dr. Francois Leonard at Sandia National Laboratories and professor Peter W. Voorhees at Northwestern University for useful discussions regarding the thermodynamic aspects of interface faceting. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of the Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 53 TC 2 Z9 2 U1 8 U2 15 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 21 PY 2016 VL 119 IS 23 AR 235306 DI 10.1063/1.4954066 PG 12 WC Physics, Applied SC Physics GA DQ2NK UT WOS:000379038800030 ER PT J AU Deuermeier, J Wardenga, HF Morasch, J Siol, S Nandy, S Calmeiro, T Martins, R Klein, A Fortunato, E AF Deuermeier, Jonas Wardenga, Hans F. Morasch, Jan Siol, Sebastian Nandy, Suman Calmeiro, Tomas Martins, Rodrigo Klein, Andreas Fortunato, Elvira TI Highly conductive grain boundaries in copper oxide thin films SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID ELECTRICAL-CONDUCTIVITY; POINT-DEFECTS; CU2O; POLYCRYSTALLINE; SEMICONDUCTORS; TRANSISTORS; CUO; NONSTOICHIOMETRY; PHOTOELECTRON; SPECTROSCOPY AB High conductivity in the off-state and low field-effect mobility compared to bulk properties is widely observed in the p-type thin-film transistors of Cu2O, especially when processed at moderate temperature. This work presents results from in situ conductance measurements at thicknesses from sub-nm to around 250 nm with parallel X-ray photoelectron spectroscopy. An enhanced conductivity at low thickness is explained by the occurrence of Cu(II), which is segregated in the grain boundary and locally causes a conductivity similar to CuO, although the surface of the thick film has Cu2O stoichiometry. Since grains grow with an increasing film thickness, the effect of an apparent oxygen excess is most pronounced in vicinity to the substrate interface. Electrical properties of Cu2O grains are at least partially short-circuited by this effect. The study focuses on properties inherent to copper oxide, although interface effects cannot be ruled out. This non-destructive, bottom-up analysis reveals phenomena which are commonly not observable after device fabrication, but clearly dominate electrical properties of polycrystalline thin films. Published by AIP Publishing. C1 [Deuermeier, Jonas; Nandy, Suman; Calmeiro, Tomas; Martins, Rodrigo; Fortunato, Elvira] Univ Nova Lisboa, Fac Sci & Technol, i3N CENIMAT, Dept Mat Sci, P-2829516 Caparica, Portugal. [Deuermeier, Jonas; Wardenga, Hans F.; Morasch, Jan; Siol, Sebastian; Klein, Andreas] Tech Univ Darmstadt, Dept Mat & Earth Sci, Jovanka Bontschits Str 2, D-64287 Darmstadt, Germany. [Siol, Sebastian] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Deuermeier, J (reprint author), Univ Nova Lisboa, Fac Sci & Technol, i3N CENIMAT, Dept Mat Sci, P-2829516 Caparica, Portugal.; Deuermeier, J; Klein, A (reprint author), Tech Univ Darmstadt, Dept Mat & Earth Sci, Jovanka Bontschits Str 2, D-64287 Darmstadt, Germany. EM j.deuermeier@campus.fct.unl.pt; aklein@surface.tu-darmstadt.de RI Klein, Andreas/E-6081-2010; Nandy, Suman/J-5277-2013; OI Klein, Andreas/0000-0001-7463-1495; Nandy, Suman/0000-0001-9817-7389; Siol, Sebastian/0000-0002-0907-6525; Deuermeier, Jonas/0000-0002-2764-3124; Martins, Rodrigo/0000-0002-1997-7669 FU FEDER funds through the COMPETE program; FCT-Portuguese Foundation for Science and Technology [POCI-01-0145-FEDER-007688, UID/CTM/50025]; German Science Foundation within the collaborative research center [SFB 595]; [SFRH/BD/77103/2011]; [UID/CTM/50025/2013]; [PEst-C/CTM/LA0025/2013-14]; [EXCL/CTM-NAN/0201/2012] FX The authors would like to acknowledge Daniela Nunes for the SEM measurements. This work is funded by FEDER funds through the COMPETE 2020 program and national funds through FCT-Portuguese Foundation for Science and Technology under the Project No. POCI-01-0145-FEDER-007688, reference UID/CTM/50025 as well as SFRH/BD/77103/2011, UID/CTM/50025/2013, PEst-C/CTM/LA0025/2013-14, and EXCL/CTM-NAN/0201/2012. Furthermore, it has been supported by the German Science Foundation within the collaborative research center SFB 595 (Electrical Fatigue of Functional Material). NR 53 TC 1 Z9 1 U1 9 U2 15 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 21 PY 2016 VL 119 IS 23 AR 235303 DI 10.1063/1.4954002 PG 8 WC Physics, Applied SC Physics GA DQ2NK UT WOS:000379038800027 ER PT J AU Song, T Kanevce, A Sites, JR AF Song, Tao Kanevce, Ana Sites, James R. TI Emitter/absorber interface of CdTe solar cells SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID EFFICIENCY; LAYERS; CDS AB The performance of CdTe solar cells can be very sensitive to the emitter/absorber interface, especially for high-efficiency cells with high bulk lifetime. Performance losses from acceptor-type interface defects can be significant when interface defect states are located near mid-gap energies. Numerical simulations show that the emitter/absorber band alignment, the emitter doping and thickness, and the defect properties of the interface (i.e., defect density, defect type, and defect energy) can all play significant roles in the interface recombination. In particular, a type I hetero-junction with small conduction-band offset (0.1 eV <= Delta E-C <= 0.3 eV) can help maintain good cell efficiency in spite of high interface defect density, much like with Cu(In, Ga)Se-2 (CIGS) cells. The basic principle is that positive Delta E-C, often referred to as a "spike," creates an absorber inversion and hence a large hole barrier adjacent to the interface. As a result, the electron-hole recombination is suppressed due to an insufficient hole supply at the interface. A large spike (Delta E-C >= 0.4 eV), however, can impede electron transport and lead to a reduction of photocurrent and fill-factor. In contrast to the spike, a "cliff" (Delta E-C<0 eV) allows high hole concentration in the vicinity of the interface, which will assist interface recombination and result in a reduced open-circuit voltage. Another way to mitigate performance losses due to interface defects is to use a thin and highly doped emitter, which can invert the absorber and form a large hole barrier at the interface. CdS is the most common emitter material used in CdTe solar cells, but the CdS/CdTe interface is in the cliff category and is not favorable from the band-offset perspective. The Delta E-C of other n-type emitter choices, such as (Mg, Zn) O, Cd(S, O), or (Cd, Mg) Te, can be tuned by varying the elemental ratio for an optimal positive value of Delta E-C. These materials are predicted to yield higher voltages and would therefore be better candidates for the CdTe-cell emitter. (C) 2016 Author(s). C1 [Song, Tao; Sites, James R.] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA. [Kanevce, Ana] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Song, T (reprint author), Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA. EM tsong241@gmail.com FU National Renewable Energy Laboratory (NREL) [UGA-0-41027-18]; U.S. Department of Energy SunShot program FX The authors would like to thank Dr. Roger Malik and Dr. Sachit Grover at First Solar, Dr. Teresa Barnes and Dr. James Burst at NREL for helpful discussions and feedback. This work was supported by National Renewable Energy Laboratory (NREL) Subcontract UGA-0-41027-18 with funding from the U.S. Department of Energy SunShot program. NR 29 TC 1 Z9 1 U1 9 U2 14 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 21 PY 2016 VL 119 IS 23 AR 233104 DI 10.1063/1.4953820 PG 8 WC Physics, Applied SC Physics GA DQ2NK UT WOS:000379038800004 ER PT J AU Willey, TM Champley, K Hodgin, R Lauderbach, L Bagge-Hansen, M May, C Sanchez, N Jensen, BJ Iverson, A van Buuren, T AF Willey, T. M. Champley, K. Hodgin, R. Lauderbach, L. Bagge-Hansen, M. May, C. Sanchez, N. Jensen, B. J. Iverson, A. van Buuren, T. TI X-ray imaging and 3D reconstruction of in-flight exploding foil initiator flyers SO JOURNAL OF APPLIED PHYSICS LA English DT Article AB Exploding foil initiators (EFIs), also known as slapper initiators or detonators, offer clear safety and timing advantages over other means of initiating detonation in high explosives. This work outlines a new capability for imaging and reconstructing three-dimensional images of operating EFIs. Flyer size and intended velocity were chosen based on parameters of the imaging system. The EFI metal plasma and plastic flyer traveling at 2.5 km/s were imaged with short similar to 80 ps pulses spaced 153.4 ns apart. A four-camera system acquired 4 images from successive x-ray pulses from each shot. The first frame was prior to bridge burst, the 2nd images the flyer about 0.16mm above the surface but edges of the foil and/or flyer are still attached to the substrate. The 3rd frame captures the flyer in flight, while the 4th shows a completely detached flyer in a position that is typically beyond where slappers strike initiating explosives. Multiple acquisitions at different incident angles and advanced computed tomography reconstruction algorithms were used to produce a 3-dimensional image of the flyer at 0.16 and 0.53mm above the surface. Both the x-ray images and the 3D reconstruction show a strong anisotropy in the shape of the flyer and underlying foil parallel vs. perpendicular to the initiating current and electrical contacts. These results provide detailed flyer morphology during the operation of the EFI. Published by AIP Publishing. C1 [Willey, T. M.; Champley, K.; Hodgin, R.; Lauderbach, L.; Bagge-Hansen, M.; May, C.; van Buuren, T.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Sanchez, N.; Jensen, B. J.] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. [Iverson, A.] Natl Secur Technol LLC, Las Vegas, NV 89193 USA. RP Willey, TM; Champley, K (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM willey1@llnl.gov; champley1@llnl.gov RI Willey, Trevor/A-8778-2011 OI Willey, Trevor/0000-0002-9667-8830 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; U.S. DOE [DE-AC02-06CH11357. LLNL-JRNL-670442]; [LLNL LDRD-14-ERD-018] FX We acknowledge Kamel Fezza and Alex Deriy of XSD, Sector 32ID, APS, and Charles T. Owen and Mike Martinez of LANL for experimental support, and Paul Wilkins of LLNL. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. Imaging was performed on the LANL-developed Impulse endstation. EFI imaging was funded by LLNL LDRD-14-ERD-018. Use of the Advanced Photon Source, an Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. LLNL-JRNL-670442. NR 19 TC 1 Z9 1 U1 14 U2 19 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 21 PY 2016 VL 119 IS 23 AR 235901 DI 10.1063/1.4953681 PG 4 WC Physics, Applied SC Physics GA DQ2NK UT WOS:000379038800038 ER PT J AU Niklasson, AMN Mniszewski, SM Negre, CFA Cawkwell, MJ Swart, PJ Mohd-Yusof, J Germann, TC Wall, ME Bock, N Rubensson, EH Djidjev, H AF Niklasson, Anders M. N. Mniszewski, Susan M. Negre, Christian F. A. Cawkwell, Marc J. Swart, Pieter J. Mohd-Yusof, Jamal Germann, Timothy C. Wall, Michael E. Bock, Nicolas Rubensson, Emanuel H. Djidjev, Hristo TI Graph-based linear scaling electronic structure theory SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID TIGHT-BINDING METHOD; OPPENHEIMER MOLECULAR-DYNAMICS; DENSITY-MATRIX; PURIFICATION; MACROMOLECULES; MULTIPLICATION; SIMULATIONS; ALGORITHM; ATOMS AB We show how graph theory can be combined with quantum theory to calculate the electronic structure of large complex systems. The graph formalism is general and applicable to a broad range of electronic structure methods and materials, including challenging systems such as biomolecules. The methodology combines well-controlled accuracy, low computational cost, and natural low-communication parallelism. This combination addresses substantial shortcomings of linear scaling electronic structure theory, in particular with respect to quantum-based molecular dynamics simulations. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). C1 [Niklasson, Anders M. N.; Negre, Christian F. A.; Cawkwell, Marc J.; Swart, Pieter J.; Germann, Timothy C.; Bock, Nicolas] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. [Mniszewski, Susan M.; Mohd-Yusof, Jamal; Wall, Michael E.; Djidjev, Hristo] Los Alamos Natl Lab, Comp Computat & Stat Sci Div, Los Alamos, NM 87545 USA. [Rubensson, Emanuel H.] Uppsala Univ, Dept Informat Technol, Div Sci Comp, Box 337, SE-75105 Uppsala, Sweden. RP Niklasson, AMN (reprint author), Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. EM amn@lanl.gov OI Mohd Yusof, Jamaludin/0000-0002-9844-689X; Mniszewski, Susan/0000-0002-0077-0537; Germann, Timothy/0000-0002-6813-238X; Cawkwell, Marc/0000-0002-8919-3368; Alexandrov, Ludmil/0000-0003-3596-4515 FU Department of Energy Offices of Basic Energy Sciences [LANL2014E8AN]; Laboratory Directed Research and Development program of Los Alamos National Laboratory (LANL); National Nuclear Security Administration of the U.S. DOE [DE-AC52-06NA25396] FX We acknowledge support from the Department of Energy Offices of Basic Energy Sciences (Grant No. LANL2014E8AN) and the Laboratory Directed Research and Development program of Los Alamos National Laboratory (LANL). Generous support and discussions with T. Peery at the T-division International Java Group are acknowledged. The research used resources provided by the LANL Institutional Computing Program. LANL, an affirmative action/equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. DOE under Contract No. DE-AC52-06NA25396. NR 75 TC 0 Z9 0 U1 6 U2 10 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 21 PY 2016 VL 144 IS 23 AR 234101 DI 10.1063/1.4952650 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DQ2NO UT WOS:000379039300002 PM 27334148 ER PT J AU Zheng, Q Gumeniuk, R Borrmann, H Schnelle, W Tsirlin, AA Rosner, H Burkhardt, U Reissner, M Grin, Y Leithe-Jasper, A AF Zheng, Qiang Gumeniuk, Roman Borrmann, Horst Schnelle, Walter Tsirlin, Alexander A. Rosner, Helge Burkhardt, Ulrich Reissner, Michael Grin, Yuri Leithe-Jasper, Andreas TI Ternary borides Nb7Fe3B8 and Ta7Fe3B8 with Kagome-type iron framework SO DALTON TRANSACTIONS LA English DT Article ID LIQUID GROUND-STATE; METAL BORIDES; HEISENBERG-ANTIFERROMAGNET; ELECTRON LOCALIZABILITY; MAGNETIC-PROPERTIES; REPRESENTATION; STABILIZATION; COMPOUND; CRYSTALS; RING AB Two new ternary borides TM7Fe3B8 (TM = Nb, Ta) were synthesized by high-temperature thermal treatment of samples obtained by arc-melting. This new type of structure with space group P6/mmm, comprises TM slabs containing isolated planar hexagonal [B-6] rings and iron centered TM columns in a Kagome type of arrangement. Chemical bonding analysis in Nb7Fe3B8 by means of the electron localizability approach reveals two-center interactions forming the Kagome net of Fe and embedded B, while weaker multicenter bonding present between this net and Nb atoms. Magnetic susceptibility measurements reveal antiferromagnetic order below T-N = 240 K for Nb7Fe3B8 and T-N = 265 K for Ta7Fe3B8. Small remnant magnetization below 0.01(mu B) per f.u. is observed in the antiferromagnetic state. The bulk nature of the magnetic transistions was confirmed by the hyperfine splitting of the Mossbauer spectra, the sizable anomalies in the specific heat capacity, and the kinks in the resistivity curves. The high-field paramagnetic susceptibilities fitted by the Curie-Weiss law show effective paramagnetic moments mu(eff) approximate to 3.1(mu B)/Fe in both compounds. The temperature dependence of the electrical resistivity also reveals metallic character of both compounds. Density functional calculations corroborate the metallic behaviour of both compounds and demonstrate the formation of a sizable local magnetic moment on the Fe-sites. They indicate the presence of both antiferro- and ferrromagnetic interactions. C1 [Zheng, Qiang; Gumeniuk, Roman; Borrmann, Horst; Schnelle, Walter; Rosner, Helge; Burkhardt, Ulrich; Grin, Yuri; Leithe-Jasper, Andreas] Max Planck Inst Chem Phys Fester Stoffe, Nothnitzer Str 40, D-01187 Dresden, Germany. [Gumeniuk, Roman] TU Bergakad Freiberg, Inst Expt Phys, Leipziger Str 23, D-09596 Freiberg, Germany. [Tsirlin, Alexander A.] Univ Augsburg, Inst Phys, BKM, Expt Phys 6, D-86135 Augsburg, Germany. [Reissner, Michael] TU Wien, Inst Festkorperphys, Wiedner Hauptstr 8-10, A-1040 Vienna, Austria. [Zheng, Qiang] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Zheng, Qiang] Oak Ridge Natl Lab, CNMS, Oak Ridge, TN 37831 USA. RP Zheng, Q (reprint author), Max Planck Inst Chem Phys Fester Stoffe, Nothnitzer Str 40, D-01187 Dresden, Germany.; Zheng, Q (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.; Zheng, Q (reprint author), Oak Ridge Natl Lab, CNMS, Oak Ridge, TN 37831 USA. EM zheng@cpfs.mpg.de RI Leithe-Jasper, Andreas/O-9303-2014; Tsirlin, Alexander/D-6648-2013; OI Tsirlin, Alexander/0000-0001-6916-8256; Zheng, Qiang/0000-0002-9279-7779 FU Federal Ministry for Education and Research through the Sofja Kovalevskaya award of Alexander von Humboldt Foundation FX We thank Mr S. Huckmann and Dr Yu. Prots for performing powder X-ray diffraction measurements, Ms P. Scheppan, Ms M. Eckert and Ms S. Kostmann for metallographic analysis, and Mr R. Koban for physical property measurements. We are grateful to Dr G. Auffermann and Ms. U. Schmidt for ICP-MS analysis of the samples. We thank Dr K. Hradil for preliminary low temperature powder XRD measurements at the X-ray center of the TU Wien. AT was supported by the Federal Ministry for Education and Research through the Sofja Kovalevskaya award of Alexander von Humboldt Foundation. NR 71 TC 0 Z9 0 U1 8 U2 16 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1477-9226 EI 1477-9234 J9 DALTON T JI Dalton Trans. PD JUN 21 PY 2016 VL 45 IS 23 BP 9590 EP 9600 DI 10.1039/c6dt01164k PG 11 WC Chemistry, Inorganic & Nuclear SC Chemistry GA DP6CC UT WOS:000378583500025 PM 27216270 ER PT J AU Hu, YC Lin, JY Cui, SH Khanna, NZ AF Hu, Yuanchao Lin, Jianyi Cui, Shenghui Khanna, Nina Zheng TI Measuring Urban Carbon Footprint from Carbon Flows in the Global Supply Chain SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID GREENHOUSE-GAS EMISSIONS; CO2 EMISSIONS; INTERNATIONAL-TRADE; XIAMEN CITY; ENERGY USE; CHINA; CITIES; CONSUMPTION; MITIGATION; INVENTORIES AB A global multiregional input output (MRIO) model was built for eight Chinese cities to track their carbon flows. For in-depth understanding of urban carbon footprint from the perspectives of production, consumption, and trade balance, four kinds of footprints and four redefined measurement indicators were calculated. From the global supply chain, urban carbon inflows from Mainland China were larger than outflows, while the carbon outflows to European, principal North American countries and East Asia were much larger than inflows. With the rapid urbanization of China, Construction was the largest consumer and Utilities was the largest producer. Cities with higher consumption (such as Dalian, Tianjin, Shanghai, and Beijing) should change their consumption patterns, while cities with lower production efficiency (such as Dalian, Shanghai, Ningbo, and Chongqing) should improve their technology. The cities of net carbon consumption tended to transfer carbon emissions out of them by trading in carbon-intensive products, while the cities of net carbon production tended to produce carbon-intensive products for nonlocal consumers. Our results indicated that urban carbon abatement requires not only rational consumption and industrial symbiosis at the city level, but also tighter collaboration along all stages of the global supply chain. C1 [Hu, Yuanchao; Lin, Jianyi; Cui, Shenghui] Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China. [Hu, Yuanchao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China. [Lin, Jianyi; Khanna, Nina Zheng] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Energy Technol Area, Energy Anal & Environm Impacts Dept, 1 Cyclotron Rd,MS 90R2002, Berkeley, CA 94720 USA. RP Lin, JY; Cui, SH (reprint author), Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China.; Lin, JY (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Energy Technol Area, Energy Anal & Environm Impacts Dept, 1 Cyclotron Rd,MS 90R2002, Berkeley, CA 94720 USA. EM jylin@iue.ac.cn; shcui@iue.ac.cn RI Cui, shenghui/B-3926-2008; CAS, KLUEH/G-8978-2016 OI Cui, shenghui/0000-0003-1290-3234; FU National Natural Science Foundation of China [71273252, 71573242]; China Scholarship Council [201404910215] FX This study was supported by the National Natural Science Foundation of China (71273252 and 71573242) and China Scholarship Council (201404910215). NR 41 TC 1 Z9 1 U1 37 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 21 PY 2016 VL 50 IS 12 BP 6154 EP 6163 DI 10.1021/acs.est.6b00985 PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA DP4ML UT WOS:000378469900006 PM 27232444 ER PT J AU Kabilan, S Jung, HB Kuprat, AP Beck, AN Varga, T Fernandez, CA Um, W AF Kabilan, Senthil Jung, Hun Bok Kuprat, Andrew P. Beck, Anthon N. Varga, Tamas Fernandez, Carlos A. Um, Wooyong TI Numerical Simulation of Permeability Change in Wellbore Cement Fractures after Geomechanical Stress and Geochemical Reactions Using X-ray Computed Tomography Imaging SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID GEOLOGIC CARBON SEQUESTRATION; FLUID-FLOW; CO2; INJECTION; PRESSURE; DIOXIDE; IMPACTS AB X-ray microtomography (XMT) imaging combined with three-dimensional (3D) computational fluid dynamics (CFD) modeling technique was used to study the effect of geochemical and geomechanical processes on fracture permeability in composite Portland cement basalt caprock core samples. The effect of fluid density and viscosity and two different pressure gradient conditions on fracture permeability was numerically studied by using fluids with varying density and viscosity and simulating two different pressure gradient conditions. After the application of geomechanical stress but before CO2-reaction, CFD revealed fluid flow increase, which resulted in increased fracture permeability. After CO2-reaction, XMT images displayed preferential precipitation of calcium carbonate within the fractures in the cement matrix and less precipitation in fractures located at the cement basalt interface. CFD estimated changes in flow profile and differences in absolute values of flow velocity due to different pressure gradients. CFD was able to highlight the profound effect of fluid viscosity on velocity profile and fracture permeability. This study demonstrates the applicability of XMT imaging and CFD as powerful tools for characterizing the hydraulic properties of fractures in a number of applications like geologic carbon sequestration and storage, hydraulic fracturing for shale gas production, and enhanced geothermal systems. C1 [Kabilan, Senthil; Kuprat, Andrew P.; Beck, Anthon N.; Varga, Tamas; Fernandez, Carlos A.; Um, Wooyong] Pacific NW Natl Lab, Richland, WA 99354 USA. [Jung, Hun Bok] New Jersey City Univ, Jersey City, NJ 07305 USA. [Um, Wooyong] Pohang Univ Sci & Technol POSTECH, Pohang, South Korea. RP Um, W (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA.; Um, W (reprint author), Pohang Univ Sci & Technol POSTECH, Pohang, South Korea. EM Wooyong.Um@pnnl.gov FU National Risk Assessment Partnership (NRAP) in the U.S. Department of Energy Office of Fossil Energy's Carbon Sequestration Program; U.S. DOE [DE-AC06-76RLO 1830] FX Funding for this research was provided by the National Risk Assessment Partnership (NRAP) in the U.S. Department of Energy Office of Fossil Energy's Carbon Sequestration Program. Part of this research was performed at the W.R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility at PNNL managed by the Department of Energy's Office of Biological and Environmental Research, and simulations were performed using PNNL Institutional Computing. PNNL is operated by Battelle for the U.S. DOE under contract DE-AC06-76RLO 1830. NR 30 TC 0 Z9 0 U1 9 U2 23 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 21 PY 2016 VL 50 IS 12 BP 6180 EP 6188 DI 10.1021/acs.est.6b00159 PG 9 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA DP4ML UT WOS:000378469900009 PM 27203125 ER PT J AU Brown, ST Basu, A Christensen, JN Reimus, P Heikoop, J Simmons, A Woldegabriel, G Maher, K Weaver, K Clay, J DePaolo, DJ AF Brown, Shaun T. Basu, Anirban Christensen, John N. Reimus, Paul Heikoop, Jeffrey Simmons, Ardyth Woldegabriel, Giday Maher, Kate Weaver, Karrie Clay, James DePaolo, Donald J. TI Isotopic Evidence for Reductive Immobilization of Uranium Across a Roll-Front Mineral Deposit SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID U-SERIES; SEDIMENT TRANSPORT; SULFATE REDUCTION; U(VI) REDUCTION; SULFUR ISOTOPES; DEEP-SEA; FRACTIONATION; U-238/U-235; U-234/U-238; ADSORPTION AB We use uranium (U) isotope ratios to detect and quantify the extent of natural U reduction in groundwater across a roll front redox gradient. Our study was conducted at the Smith Ranch-Highland in situ recovery (ISR) U mine in eastern Wyoming, USA, where economic U deposits occur in the Paleocene Fort Union formation. To evaluate the fate of aqueous U in and adjacent to the ore body, we investigated the chemical composition and isotope ratios of groundwater samples from the roll-front type ore body and surrounding monitoring wells of a previously mined area. The U-238/U-235 of groundwater varies by approximately 3 parts per thousand and is correlated with U concentrations. Fluid samples down-gradient of the ore zone are the most depleted in U-238 and have the lowest U concentrations. Activity ratios of U-234/U-238 are similar to 5.5 up-gradient of the ore zone, similar to 1.0 in the ore zone, and between 2.3 and 3.7 in the down-gradient monitoring wells. High-precision measurements of U-234/U-238 and U-238/U-235 allow for development of a conceptual model that evaluates both the migration of U from the ore body and the extent of natural attenuation due to reduction. We find that the premining migration of U down-gradient of the delineated ore body is minimal along eight transects due to reduction in or adjacent to the ore body, whereas two other transects show little or no sign of reduction in the down-gradient region. These results suggest that characterization of U isotopic ratios at the mine planning stage, in conjunction with routine geochemical analyses, can be used to identify where more or less postmining remediation will be necessary. C1 [Brown, Shaun T.; Basu, Anirban; DePaolo, Donald J.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94709 USA. [Brown, Shaun T.; Basu, Anirban; Christensen, John N.; DePaolo, Donald J.] EO Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA. [Reimus, Paul; Heikoop, Jeffrey; Simmons, Ardyth; Woldegabriel, Giday] Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87454 USA. [Maher, Kate; Weaver, Karrie] Stanford Univ, Dept Geol Sci, Stanford, CA 94305 USA. [Clay, James] Power Resources Inc, Smith Ranch Highland Operat, 762 Ross Rd, Douglas, WY 82633 USA. RP Brown, ST (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94709 USA.; Brown, ST (reprint author), EO Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA. RI Basu, Anirban/P-5048-2016; Brown, Shaun/E-9398-2015; Christensen, John/D-1475-2015; OI Basu, Anirban/0000-0002-4905-9156; Brown, Shaun/0000-0002-2159-6718; Heikoop, Jeffrey/0000-0001-7648-3385; Weaver, Karrie/0000-0002-7094-3501 FU University of California, Office of the President through the UC Lab Fees Research Program; US Dept of Energy [DE-AC02-05CH11231] FX The University of California, Office of the President through the UC Lab Fees Research Program, provided project funding. Cameco Resources provided access and field support for collecting groundwater and sediment core samples. The comments of 3 anonymous reviewers and Associate Editor Daniel Giammar improved the clarity of the manuscript. The US Dept of Energy provided salary support for DJD and JNC during the study period under Contract No. DE-AC02-05CH11231. NR 70 TC 5 Z9 5 U1 14 U2 30 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 21 PY 2016 VL 50 IS 12 BP 6189 EP 6198 DI 10.1021/acs.est.6b00626 PG 10 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA DP4ML UT WOS:000378469900010 PM 27203292 ER PT J AU Ent, R AF Ent, Rolf TI TMDs and GPDs at a future Electron-Ion Collider SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article AB In the U.S., an Electron-Ion Collider (EIC) of energy root s = 20-100 GeV is under design, with two options studied at Brookhaven National Lab and Jefferson Laboratory. The recent 2015 US Nuclear Science Long-Range Planning effort included a future EIC as a recommendation for future construction. The EIC will be unique in colliding polarised electrons off polarised protons and light nuclei, providing the spin degrees of freedom essential to pursue its physics program driven by spin structure, multi-dimensional tomographic images of protons and nuclei, and discovery of the role of collective effects of gluons in nuclei. The foreseen luminosity of the EIC, coupled with its energy variability and reach, will allow unprecedented three-dimensional imaging of the gluon and sea quark distributions, via both TMDs and GPDs, and to explore correlations amongst them. Its hermetic detection capability of correlated fragments promises to similarly allow for precise tomographic images of the quark-gluon landscape in nuclei, transcending from light few-body nuclei to the heaviest nuclei, and could uncover how the TMD and GPD landscape changes when gluons display an anticipated collective behavior at the higher energies. C1 [Ent, Rolf] Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 USA. RP Ent, R (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 USA. EM ent@jlab.org NR 13 TC 1 Z9 1 U1 1 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 EI 1434-601X J9 EUR PHYS J A JI Eur. Phys. J. A PD JUN 21 PY 2016 VL 52 IS 6 AR 162 DI 10.1140/epja/i2016-16162-6 PG 8 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA DP9MX UT WOS:000378821400003 ER PT J AU Bain, R Dai, L Hornig, A Leibovich, AK Markris, Y Mehen, T AF Bain, Reggie Dai, Lin Hornig, Andrew Leibovich, Adam K. Markris, Yiannis Mehen, Thomas TI Analytic and Monte Carlo studies of jets with heavy mesons and quarkonia SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Jets ID FRAGMENTATION; DECAY AB We study jets with identified hadrons in which a family of jet-shape variables called angularities are measured, extending the concept of fragmenting jet functions (FJFs) to these observables. FJFs determine the fraction of energy, z, carried by an identified hadron in a jet with angularity, tau(a). The FJFs are convolutions of fragmentation functions (FFs), evolved to the jet energy scale, with perturbatively calculable matching coefficients. Renormalization group equations are used to provide resummed calculations with next-to-leading logarithm prime (NLL') accuracy. We apply this formalism to two-jet events in e(+)e(-) collisions with B mesons in the jets, and three-jet events in which a J/psi is produced in the gluon jet. In the case of B mesons, we use a phenomenological FF extracted from e(+)e(-) collisions at the Z(0) pole evaluated at the scale mu = m(b). For events with J/psi, the FF can be evaluated in terms of Non-Relativistic QCD (NRQCD) matrix elements at the scale mu = 2m(c). The z and tau(a) distributions from our NLL' calculations are compared with predictions from monte carlo event generators. While we find consistency between the predictions for B mesons and the J/psi distributions in tau(a), we find the z distributions for J/psi differ significantly. We describe an attempt to merge PYTHIA showers with NRQCD FFs that gives good agreement with NLL' calculations of the z distributions. C1 [Bain, Reggie; Markris, Yiannis; Mehen, Thomas] Duke Univ, Dept Phys, Sci Dr, Durham, NC 27708 USA. [Dai, Lin; Leibovich, Adam K.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh Particle Phys Astrophys & Cosmol Ctr P, 3941 OHara St, Pittsburgh, PA 15260 USA. [Hornig, Andrew] Los Alamos Natl Lab, Theoret Div, T-2, Los Alamos, NM 87545 USA. RP Bain, R (reprint author), Duke Univ, Dept Phys, Sci Dr, Durham, NC 27708 USA. EM rab59@duke.edu; lid33@pitt.edu; ahornig@lanl.gov; akl2@pitt.edu; yiannis.makris@duke.edu; mehen@phy.duke.edu FU LANL/LDRD program; DOE Office of Science [DE-AC52-06NA25396]; Office of Science, Office of Nuclear Physics, of the U.S. Department of Energy [DE-FG02-05ER41368]; National Science Foundation [3380012]; NSF [PHY-1519175] FX AH was supported by a Director's Fellowship from the LANL/LDRD program and the DOE Office of Science under Contract DE-AC52-06NA25396. TM and YM are supported in part by the Director, Office of Science, Office of Nuclear Physics, of the U.S. Department of Energy under grant numbers DE-FG02-05ER41368. RB is supported by a National Science Foundation Graduate Research Fellowship under Grant No. 3380012. RB, TM, and YM also acknowledge the hospitality of the theory groups at Brookhaven National Laboratory, Los Alamos National Laboratory, Duke-Kunshan University, and UC-Irvine for their hospitality during the completion of this work. AL and LD were supported in part by NSF grant PHY-1519175. LD also acknowledges the hospitality of the theory group at Duke University for their hospitality during the completion of this work. NR 36 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD JUN 21 PY 2016 IS 6 AR 121 DI 10.1007/JHEP06(2016)121 PG 28 WC Physics, Particles & Fields SC Physics GA DQ1AN UT WOS:000378933100005 ER PT J AU Andersen, A Reardon, PN Chacon, SS Qafoku, NP Washton, NM Kleber, M AF Andersen, Amity Reardon, Patrick N. Chacon, Stephany S. Qafoku, Nikolla P. Washton, Nancy M. Kleber, Markus TI Protein-Mineral Interactions: Molecular Dynamics Simulations Capture Importance of Variations in Mineral Surface Composition and Structure SO LANGMUIR LA English DT Article ID CHARGED SOLID-SURFACE; SOIL ORGANIC-MATTER; X-RAY-DIFFRACTION; LYSOZYME ADSORPTION; CLAY-MINERALS; MONTMORILLONITE COMPLEXES; RIETVELD REFINEMENT; CA-MONTMORILLONITE; WATER-STRUCTURE; PRION PROTEIN AB Molecular dynamics simulations, conventional and metadynamics, were performed to determine the interaction of model protein Gb1 over kaolinite (001), Na+-montmorillonite (001), Ca2+-montmorillonite (001), goethite (100), and Na+-bimessite (001) mineral surfaces. Gb1, a small (56 residue) protein with a well-characterized solution-state nuclear magnetic resonance (NMR) structure and having a helix, 4-fold beta-sheet, and hydrophobic core features, is used as a model protein to study protein soil mineral interactions and gain insights on structural changes and potential degradation of protein. From our simulations, we observe little change to the hydrated Gb1 structure over the kaolinite, montmorillonite, and goethite surfaces relative to its solvated structure without these mineral surfaces present. Over the Na+-birnessite basal surface, however, the Gb1 structure is highly disturbed as a result of interaction with this birnessite surface. Unraveling of the Gb1 beta-sheet at specific turns and a partial unraveling of the alpha-helix is observed over birnessite, which suggests specific vulnerable residue sites for oxidation or hydrolysis possibly leading to fragmentation. C1 [Andersen, Amity; Reardon, Patrick N.; Washton, Nancy M.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Qafoku, Nikolla P.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA. [Chacon, Stephany S.; Kleber, Markus] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA. [Kleber, Markus] Leibniz Zentrum Agrarlandschaftsforsch ZALF, Inst Bodenlandschaftsforsch, Eberswalder Str 84, D-15374 Muncheberg, Germany. RP Andersen, A (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. EM amity.andersen@pnnl.gov RI Chacon, Stephany Soledad/I-5903-2014; OI Chacon, Stephany Soledad/0000-0001-7599-9152; Qafoku, Nikolla P./0000-0002-3258-5379; Reardon, Patrick/0000-0002-6858-0086 FU Office of Biological and Environmental Research; U.S. DOE [DE-AC05-76RL01830] FX We thank Dr. Niri Govind for his insightful discussions regarding the manuscript. The research is part of the "Understanding Molecular-Scale Complexity and Interactions of Soil Organic Matter" Intramural Project at EMSL, a DOE Office of Science User Facility sponsored by the Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. PNNL is operated by Battelle for the U.S. DOE under Contract DE-AC05-76RL01830. NR 70 TC 1 Z9 1 U1 10 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD JUN 21 PY 2016 VL 32 IS 24 BP 6194 EP 6209 DI 10.1021/acs.langmuir.6b01198 PG 16 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA DP4MM UT WOS:000378470000021 PM 27243116 ER PT J AU Noronha-Hostler, J Betz, B Noronha, J Gyulassy, M AF Noronha-Hostler, Jacquelyn Betz, Barbara Noronha, Jorge Gyulassy, Miklos TI Event-by-Event Hydrodynamics plus Jet Energy Loss: A Solution to the R-AA circle times v(2) Puzzle SO PHYSICAL REVIEW LETTERS LA English DT Article ID SMOOTHED PARTICLE HYDRODYNAMICS; RELATIVISTIC NUCLEAR COLLISIONS; PB-PB COLLISIONS; TRANSVERSE-MOMENTUM; ROOT-S(NN)=2.76 TEV; CENTRALITY DEPENDENCE; ANISOTROPIC FLOW; LHC AB High p(T) > 10 GeV elliptic flow, which is experimentally measured via the correlation between soft and hard hadrons, receives competing contributions from event-by-event fluctuations of the low-p(T) elliptic flow and event-plane angle fluctuations in the soft sector. In this Letter, a proper account of these event-byevent fluctuations in the soft sector, modeled via viscous hydrodynamics, is combined with a jet-energyloss model to reveal that the positive contribution from low-p(T) v(2) fluctuations overwhelms the negative contributions from event-plane fluctuations. This leads to an enhancement of high-p(T) > 10 GeV elliptic flow in comparison to previous calculations and provides a natural solution to the decade-long high-p(T) R-AA circle times v(2) puzzle. We also present the first theoretical calculation of high-p(T) v(3), which is shown to be compatible with current LHC data. Furthermore, we discuss how short-wavelength jet-medium physics can be deconvoluted from the physics of soft, bulk event-by-event flow observables using event-shape engineering techniques. C1 [Noronha-Hostler, Jacquelyn] Univ Houston, Dept Phys, Houston, TX 77204 USA. [Betz, Barbara] Goethe Univ Frankfurt, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany. [Noronha, Jorge] Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, SP, Brazil. [Gyulassy, Miklos] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Gyulassy, Miklos] Columbia Univ, Dept Phys, Pupin Lab MS 5202, 538 W 120th St, New York, NY 10027 USA. [Gyulassy, Miklos] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China. [Gyulassy, Miklos] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China. RP Noronha-Hostler, J (reprint author), Univ Houston, Dept Phys, Houston, TX 77204 USA. RI Noronha, Jorge/M-8800-2014; Noronha, Jorge/E-5783-2013 FU University of Houston; Bundesministerium fur Bildung und Forschung; Helmholtz International Center for FAIR; US-DOE Nuclear Science Grant [DE-FG02-93ER40764]; IOPP, CCNU, Wuhan, China; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) FX We thank G. S. Denicol, M. Luzum, S. Mohapatra, A. Timmins, W. Li, and J. Liao for discussions. J. N. H. was supported by the University of Houston. B. B. acknowledges support from the Bundesministerium fur Bildung und Forschung and the Helmholtz International Center for FAIR. J. N. H. and M. G. were supported in part by US-DOE Nuclear Science Grant No. DE-FG02-93ER40764. M. G. also acknowledges partial support by the IOPP, CCNU, Wuhan, China. J. N. thanks the University of Houston for its hospitality and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) and Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) for support. NR 102 TC 3 Z9 3 U1 4 U2 6 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 21 PY 2016 VL 116 IS 25 AR 252301 DI 10.1103/PhysRevLett.116.252301 PG 6 WC Physics, Multidisciplinary SC Physics GA DP0VX UT WOS:000378209900008 PM 27391718 ER PT J AU Rettig, L Dornes, C Thielemann-Kuhn, N Pontius, N Zabel, H Schlagel, DL Lograsso, TA Chollet, M Robert, A Sikorski, M Song, S Glownia, JM Schussler-Langeheine, C Johnson, SL Staub, U AF Rettig, L. Dornes, C. Thielemann-Kuehn, N. Pontius, N. Zabel, H. Schlagel, D. L. Lograsso, T. A. Chollet, M. Robert, A. Sikorski, M. Song, S. Glownia, J. M. Schuessler-Langeheine, C. Johnson, S. L. Staub, U. TI Itinerant and Localized Magnetization Dynamics in Antiferromagnetic Ho SO PHYSICAL REVIEW LETTERS LA English DT Article ID COHERENT-LIGHT SOURCE; X-RAY SCATTERING; ANGULAR-MOMENTUM; ULTRAFAST; REVERSAL; HOLMIUM; ORDER; STATE; FILMS; DEMAGNETIZATION AB Using femtosecond time-resolved resonant magnetic x-ray diffraction at the Ho L-3 absorption edge, we investigate the demagnetization dynamics in antiferromagnetically ordered metallic Ho after femtosecond optical excitation. Tuning the x-ray energy to the electric dipole (E1, 2p -> 5d) or quadrupole (E2, 2p -> 4f) transition allows us to selectively and independently study the spin dynamics of the itinerant 5d and localized 4f electronic subsystems via the suppression of the magnetic (2 1 3-tau) satellite peak. We find demagnetization time scales very similar to ferromagnetic 4f systems, suggesting that the loss of magnetic order occurs via a similar spin-flip process in both cases. The simultaneous demagnetization of both subsystems demonstrates strong intra-atomic 4f-5d exchange coupling. In addition, an ultrafast lattice contraction due to the release of magneto-striction leads to a transient shift of the magnetic satellite peak. C1 [Rettig, L.; Staub, U.] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. [Rettig, L.] MPG, Fritz Haber Inst, Abt Phys Chem, Faradayweg 4-6, D-14195 Berlin, Germany. [Dornes, C.; Johnson, S. L.] ETH, Inst Quantum Elect, Dept Phys, CH-8093 Zurich, Switzerland. [Thielemann-Kuehn, N.; Pontius, N.; Schuessler-Langeheine, C.] Helmholtz Zentrum Berlin Mat & Energie GmbH, Albert Einstein Str 15, D-12489 Berlin, Germany. [Thielemann-Kuehn, N.] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany. [Zabel, H.] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany. [Schlagel, D. L.] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA. [Lograsso, T. A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Chollet, M.; Robert, A.; Sikorski, M.; Song, S.; Glownia, J. M.] SLAC Natl Accelerator Lab, Linac Coherent Light Source, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. RP Rettig, L (reprint author), Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.; Rettig, L (reprint author), MPG, Fritz Haber Inst, Abt Phys Chem, Faradayweg 4-6, D-14195 Berlin, Germany. EM laurenz.rettig@googlemail.com RI SchuSSler-Langeheine, Christian/C-3186-2008; Johnson, Steven/B-3252-2008 OI SchuSSler-Langeheine, Christian/0000-0002-4553-9726; Johnson, Steven/0000-0001-6074-4894 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]; U.S. Department of Energy [DE-AC02-07CH11358]; National Center of Competence in Research: Molecular Ultrafast Science and Technology (NCCR MUST)), a research instrument of the Swiss National Science Foundation (SNSF); Helmholtz Virtual Institute Dynamic Pathways in Multidimensional Landscapes; BMBF [05K13PC1] FX This research was carried out on the XPP Instrument at the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory. LCLS is an Office of Science User Facility operated for the U.S. Department of Energy, Office of Science by Stanford University. Use of the Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. Static resonant x-ray diffraction experiments were performed at the X04SA Material Science beam line at the Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland. The Ho single crystal was prepared by the Materials Preparation Center at the Ames Laboratory. The Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. This work was supported by the National Center of Competence in Research: Molecular Ultrafast Science and Technology (NCCR MUST), a research instrument of the Swiss National Science Foundation (SNSF), and the Helmholtz Virtual Institute Dynamic Pathways in Multidimensional Landscapes. H. Z. acknowledges support through BMBF 05K13PC1. NR 46 TC 0 Z9 0 U1 13 U2 18 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 21 PY 2016 VL 116 IS 25 AR 257202 DI 10.1103/PhysRevLett.116.257202 PG 6 WC Physics, Multidisciplinary SC Physics GA DP0VX UT WOS:000378209900022 PM 27391747 ER PT J AU Triola, C Badiane, DM Balatsky, AV Rossi, E AF Triola, Christopher Badiane, Driss M. Balatsky, Alexander V. Rossi, E. TI General Conditions for Proximity-Induced Odd-Frequency Superconductivity in Two-Dimensional Electronic Systems SO PHYSICAL REVIEW LETTERS LA English DT Article ID SINGLE-LAYER MOS2; TOPOLOGICAL INSULATORS; MAJORANA FERMIONS; NANOWIRE; SEMICONDUCTOR; SIGNATURE; HETEROSTRUCTURES; PERFORMANCE; TRANSISTORS; GRAPHENE AB We obtain the general conditions for the emergence of odd-frequency superconducting pairing in a two-dimensional (2D) electronic system proximity coupled to a superconductor, making minimal assumptions about both the 2D system and the superconductor. Using our general results we show that a simple heterostructure formed by a monolayer of a group VI transition metal dichalcogenide, such as molybdenum disulfide, and an s-wave superconductor with Rashba spin-orbit coupling exhibits odd-frequency superconducting pairing. Our results allow the identification of a new class of systems among van der Waals heterostructures in which odd-frequency superconductivity should be present. C1 [Triola, Christopher; Balatsky, Alexander V.] KTH Royal Inst Technol, Nordita, Ctr Quantum Mat, Roslagstullsbacken 23, S-10691 Stockholm, Sweden. [Triola, Christopher; Balatsky, Alexander V.] Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden. [Badiane, Driss M.; Rossi, E.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. [Balatsky, Alexander V.] Los Alamos Natl Lab, Inst Mat Sci, POB 1663, Los Alamos, NM 87545 USA. RP Triola, C (reprint author), KTH Royal Inst Technol, Nordita, Ctr Quantum Mat, Roslagstullsbacken 23, S-10691 Stockholm, Sweden.; Triola, C (reprint author), Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden. FU European Research Council (ERC) [DM-321031]; U.S. DOE [BES E304]; ONR; NSF CAREER Grant [DMR-1455233] FX We thank Annica Black-Schaffer, Matthias Eschrig, Satrio Gani, Martin Rodriguez-Vega, Yudistira Virgus, and Junhua Zhang for useful discussions. The work of C. T. and A. V. B. was supported by the European Research Council (ERC) Grant No. DM-321031 and U.S. DOE Award No. BES E304; D. M. B. and E. R. acknowledge support from ONR and NSF CAREER Grant No. DMR-1455233. NR 48 TC 3 Z9 3 U1 13 U2 23 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 21 PY 2016 VL 116 IS 25 AR 257001 DI 10.1103/PhysRevLett.116.257001 PG 5 WC Physics, Multidisciplinary SC Physics GA DP0VX UT WOS:000378209900018 PM 27391743 ER PT J AU Winkel, M Salman-Carvalho, V Woyke, T Richter, M Schulz-Vogt, HN Flood, BE Bailey, JV Mussmann, M AF Winkel, Matthias Salman-Carvalho, Verena Woyke, Tanja Richter, Michael Schulz-Vogt, Heide N. Flood, Beverly E. Bailey, Jake V. Mussmann, Marc TI Single-cell Sequencing of Thiomargarita Reveals Genomic Flexibility for Adaptation to Dynamic Redox Conditions SO FRONTIERS IN MICROBIOLOGY LA English DT Article DE "Candidatus Thiomargarita nelsonii"; single-cell genome; sulfur-oxidizing bacteria; cyanobacteria; multiple-displacement amplification; C2-cycle ID RIBOSOMAL-RNA GENES; METHYLOCOCCUS-CAPSULATUS BATH; ELECTRON-TRANSPORT PATHWAYS; COLORLESS SULFUR BACTERIA; MARINE BEGGIATOA; ENERGY-CONSERVATION; NITRATE REDUCTASES; DRAFT GENOME; COLD SEEPS; METABOLISM AB Large, colorless sulfur-oxidizing bacteria (LSB) of the family Beggiatoaceae form thick mats at sulfidic sediment surfaces, where they efficiently detoxify sulfide before it enters the water column. The genus Thiomargarita harbors the largest known free-living bacteria with cell sizes of up to 750 mu m in diameter. In addition to their ability to oxidize reduced sulfur compounds, some Thiornargarita spp. are known to store large amounts of nitrate, phosphate and elemental sulfur internally. To date little is known about their energy yielding metabolic pathways, and how these pathways compare to other Beggiatoaceae. Here, we present a draft single-cell genome of a chain-forming "Candidatus Thiomargarita nelsonii Thio36", and conduct a comparative analysis to five draft and one full genome of other members of the Beggiatoaceae. "Ca. T. nelsonii Thio36" is able to respire nitrate to both ammonium and dinitrogen, which allows them to flexibly respond to environmental changes. Genes for sulfur oxidation and inorganic carbon fixation confirmed that "Ca. T. nelsonii Thio36" can function as a chemolithoautotroph. Carbon can be fixed via the Calvin-Benson-Bassham cycle, which is common among the Beggiatoaceae. In addition we found key genes of the reductive tricarboxylic acid cycle that point toward an alternative CO2 fixation pathway. Surprisingly, "Ca. T. nelsonii Thio36" also encodes key genes of the C-2 cycle that convert 2-phosphoglycolate to 3-phosphoglycerate during photorespiration in higher plants and cyanobacteria. Moreover, we identified a novel trait of a flavin-based energy bifurcation pathway coupled to a Na+-translocating membrane complex (Rnf). The coupling of these pathways may be key to surviving long periods of anoxia. As other Beggiatoaceae "Ca. T. nelsonii Thio36" encodes many genes similar to those of (filamentous) cyanobacteria. In summary, the genome of "Ca. T. nelsonii Thio36" provides additional insight into the ecology of giant sulfur-oxidizing bacteria, and reveals unique genomic features for the Thiomargarita lineage within the Beggiatoaceae. C1 [Winkel, Matthias; Mussmann, Marc] Max Planck Inst Marine Mikrobiol, Dept Mol Ecol, Mol Ecol Grp, D-28359 Bremen, Germany. [Winkel, Matthias] Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Sect Geomicrobiol, Potsdam, Germany. [Salman-Carvalho, Verena] Max Planck Inst Marine Mikrobiol, HGF MPG Joint Res Grp Deep Sea Ecol & Technol, D-28359 Bremen, Germany. [Woyke, Tanja] Joint Genome Inst, Dept Energy, Walnut Creek, CA USA. [Richter, Michael] Max Planck Inst Marine Mikrobiol, Dept Mol Ecol, Microbial Genom & Bioinformat Grp, D-28359 Bremen, Germany. [Schulz-Vogt, Heide N.] Leibniz Inst Ostseeforsch Warnemunde, Rostock, Germany. [Flood, Beverly E.; Bailey, Jake V.] Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA. [Mussmann, Marc] Univ Vienna, Div Microbial Ecol, A-1010 Vienna, Austria. RP Winkel, M; Mussmann, M (reprint author), Max Planck Inst Marine Mikrobiol, Dept Mol Ecol, Mol Ecol Grp, D-28359 Bremen, Germany.; Winkel, M (reprint author), Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Sect Geomicrobiol, Potsdam, Germany.; Mussmann, M (reprint author), Univ Vienna, Div Microbial Ecol, A-1010 Vienna, Austria. EM mwinkel@gfz-potsdam.de; mussmann@microbial-ecology.net RI Schulz-Vogt, Heide/I-1397-2012; Mussmann, Marc/A-8649-2017; OI Schulz-Vogt, Heide/0000-0003-1445-0291; Carvalho, Verena/0000-0001-7760-8995 FU Max Planck Society; DOI Joint Genome Institute; German Research Society [DEG Ern 37/30-1]; DOE Office of Science User Facility [DE-AC02-05CF111231]; Deutsche Eorschungsgemeinschaft [Sa2505/1-1] FX We would like to thank the Max Planck Society and the DOI Joint Genome Institute for financial support. The Thiomargarita-containing sediment sample was collected as part of the Meteor cruise M76 funded by the German Research Society through 'DEG Ern 37/30-1'. The work conducted by the US Department of Energy Joint Genome Institute, a DOE Office of Science User Facility, is supported under Contract No. DE-AC02-05CF111231. VS-C was supported by the Deutsche Eorschungsgemeinschaft grant Sa2505/1-1. NR 94 TC 1 Z9 1 U1 8 U2 13 PU FRONTIERS MEDIA SA PI LAUSANNE PA PO BOX 110, EPFL INNOVATION PARK, BUILDING I, LAUSANNE, 1015, SWITZERLAND SN 1664-302X J9 FRONT MICROBIOL JI Front. Microbiol. PD JUN 21 PY 2016 VL 7 AR 964 DI 10.3389/fmicb.2016.00964 PG 16 WC Microbiology SC Microbiology GA DO9OS UT WOS:000378116700001 PM 27446006 ER PT J AU Sanghavi, S Wang, WN Nandasiri, MI Karakoti, AS Wang, WL Yang, P Thevuthasan, S AF Sanghavi, Shail Wang, Weina Nandasiri, Manjula I. Karakoti, Ajay S. Wang, Wenliang Yang, Ping Thevuthasan, S. TI Investigation of trimethylacetic acid adsorption on stoichiometric and oxygen-deficient CeO2(111) surfaces SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID CERIUM OXIDE NANOPARTICLES; ACETIC-ACID; DECOMPOSITION; PROTECTION; TIO2(110); CHEMISTRY; XPS AB We studied the interactions between the carboxylate anchoring group from trimethylacetic acid (TMAA) and CeO2(111) surfaces as a function of oxygen stoichiometry using in situ X-ray photoelectron spectroscopy (XPS). The stoichiometric CeO2(111) surface was obtained by annealing the thin film under 2.0 x 10(-5) Torr of oxygen at similar to 550 degrees C for 30 min. In order to reduce the CeO2(111) surface, the thin film was annealed under similar to 5.0 x 10(-10) Torr vacuum conditions at 550 degrees C, 650 degrees C, 750 degrees C and 850 degrees C for 30 min to progressively increase the oxygen defect concentration on the surface. The saturated TMAA coverage on the CeO2(111) surface determined from XPS elemental composition is found to increase with increasing oxygen defect concentration. This is attributed to the increase of under-coordinated cerium sites on the surface with the increase in the oxygen defect concentrations. XPS results were in agreement with periodic density functional theory (DFT) calculations and indicate a stronger binding between the carboxylate group from TMAA and the oxygen deficient CeO2-delta(111) surface through dissociative adsorption. C1 [Sanghavi, Shail; Wang, Weina; Nandasiri, Manjula I.; Karakoti, Ajay S.; Yang, Ping; Thevuthasan, S.] Pacific NW Natl Lab, EMSL, Richland, WA 99354 USA. [Wang, Weina; Wang, Wenliang] Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710062, Shaanxi, Peoples R China. [Karakoti, Ajay S.] Ahmedabad Univ, Sch Engn & Appl Sci, Ahmadabad 380015, Gujarat, India. [Yang, Ping] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. RP Karakoti, AS; Yang, P (reprint author), Pacific NW Natl Lab, EMSL, Richland, WA 99354 USA.; Karakoti, AS (reprint author), Ahmedabad Univ, Sch Engn & Appl Sci, Ahmadabad 380015, Gujarat, India.; Yang, P (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. EM ajay.karakoti@ahduni.edu.in; pyang@lanl.gov OI Yang, Ping/0000-0003-4726-2860 FU Office of Biological and Environmental Research at Pacific Northwest National Laboratory; EMSL intramural program; U.S. Department of Energy, Office of Science, Division of Chemical Sciences; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division (CSGB), Heavy Element Chemistry Program at Los Alamos National Laboratory [DE-AC52-06NA25396] FX This research was performed at Environmental Molecular Sciences Laboratory (EMSL), a DOE Office of Science User Facility sponsored by the Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. This work was supported by the EMSL intramural program. This work was also supported by the U.S. Department of Energy, Office of Science, Division of Chemical Sciences. A part of this work (P. Yang) was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division (CSGB), Heavy Element Chemistry Program at Los Alamos National Laboratory under contract No. DE-AC52-06NA25396 (operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy). NR 24 TC 0 Z9 0 U1 11 U2 20 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1463-9076 EI 1463-9084 J9 PHYS CHEM CHEM PHYS JI Phys. Chem. Chem. Phys. PD JUN 21 PY 2016 VL 18 IS 23 BP 15625 EP 15631 DI 10.1039/c6cp00855k PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DP1IF UT WOS:000378243000020 PM 27220740 ER PT J AU Nguyen-Phan, TD Luo, S Vovchok, D Llorca, J Sallis, S Kattel, S Xu, WQ Piper, LFJ Polyansky, DE Senanayake, SD Stacchiola, DJ Rodriguez, JA AF Thuy-Duong Nguyen-Phan Luo, Si Vovchok, Dimitriy Llorca, Jordi Sallis, Shawn Kattel, Shyam Xu, Wenqian Piper, Louis F. J. Polyansky, Dmitry E. Senanayake, Sanjaya D. Stacchiola, Dario J. Rodriguez, Jose A. TI Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H-2 production SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID SENSITIZED SOLAR-CELLS; PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; RUTILE TIO2; WATER; RU; PHASE; NANOTUBES AB Three-dimensional (3D) monodispersed sea urchin-like Ru-doped rutile TiO2 hierarchical architectures composed of radially aligned, densely-packed TiO2 nanorods have been successfully synthesized via an acid-hydrothermal method at low temperature without the assistance of any structure-directing agent and post annealing treatment. The addition of a minuscule concentration of ruthenium dopants remarkably catalyzes the formation of the 3D urchin structure and drives the enhanced photocatalytic H-2 production under visible light irradiation, not possible on undoped and bulk rutile TiO2. Increasing ruthenium doping dosage not only increases the surface area up to 166 m(2) g(-1) but also induces enhanced photoresponse in the regime of visible and near infrared light. The doping introduces defect impurity levels, i.e. oxygen vacancy and under-coordinated Ti3+, significantly below the conduction band of TiO2, and ruthenium species act as electron donors/acceptors that accelerate the photogenerated hole and electron transfer and efficiently suppress the rapid charge recombination, therefore improving the visible-light-driven activity. C1 [Thuy-Duong Nguyen-Phan; Luo, Si; Vovchok, Dimitriy; Kattel, Shyam; Polyansky, Dmitry E.; Senanayake, Sanjaya D.; Stacchiola, Dario J.; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Luo, Si; Vovchok, Dimitriy; Rodriguez, Jose A.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11790 USA. [Llorca, Jordi] Univ Politecn Cataluna, Inst Energy Technol, Diagonal 647, E-08028 Barcelona, Spain. [Llorca, Jordi] Univ Politecn Cataluna, Ctr Res NanoEngn, Diagonal 647, E-08028 Barcelona, Spain. [Sallis, Shawn; Piper, Louis F. J.] SUNY Binghamton, Mat Sci & Engn, Binghamton, NY 13902 USA. [Xu, Wenqian] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA. RP Stacchiola, DJ; Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.; Rodriguez, JA (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11790 USA. EM djs@bnl.gov; rodrigez@bnl.gov RI Stacchiola, Dario/B-1918-2009; Polyansky, Dmitry/C-1993-2009; Nguyen Phan, Thuy Duong/C-8751-2014; Senanayake, Sanjaya/D-4769-2009; OI Stacchiola, Dario/0000-0001-5494-3205; Polyansky, Dmitry/0000-0002-0824-2296; Senanayake, Sanjaya/0000-0003-3991-4232; Piper, Louis/0000-0002-3421-3210 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and Catalysis Science Program [DE-SC0012704]; Advanced Photon Science - Argonne National Laboratory (APS-ANL) [DE-AC02-06CH11357] FX The research was performed at Brookhaven National Laboratory, supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and Catalysis Science Program under contract No. DE-SC0012704. This work used resources of the Center for Functional Nanomaterials (CFN-BNL) and Advanced Photon Science - Argonne National Laboratory (APS-ANL, contract no. DE-AC02-06CH11357) which are DOE Office of Science User Facilities. J. L. is Serra Hunter Fellow and is grateful to ENE2014-61715-EXP and ICREA Academia program. We thank Dr Viet Hung Pham (CFN-BNL) for Raman analysis and Dr Binhang Yan (Chemistry Department-BNL) for surface area measurement. NR 35 TC 1 Z9 1 U1 11 U2 26 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1463-9076 EI 1463-9084 J9 PHYS CHEM CHEM PHYS JI Phys. Chem. Chem. Phys. PD JUN 21 PY 2016 VL 18 IS 23 BP 15972 EP 15979 DI 10.1039/c6cp00472e PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DP1IF UT WOS:000378243000061 PM 27240884 ER PT J AU Lo Celso, F Aoun, B Triolo, A Russina, O AF Lo Celso, Fabrizio Aoun, Bachir Triolo, Alessandro Russina, Olga TI Liquid structure of dibutyl sulfoxide SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID TEMPERATURE IONIC LIQUIDS; MOLECULAR-DYNAMICS SIMULATIONS; MONTE-CARLO SIMULATIONS; PARTICLE MESH EWALD; X-RAY-SCATTERING; DIMETHYL-SULFOXIDE; NEUTRON-DIFFRACTION; FORCE-FIELD; THERMAL-DENATURATION; PHYSICAL-PROPERTIES AB We present experimental (X-ray diffraction) data on the structure of liquid dibutyl sulfoxide at 320 K and rationalise the data by means of molecular dynamics simulations. Not unexpectedly, DBSO bearing a strong dipolar moiety and two medium length, apolar butyl chains, this compound was characterised by a distinct degree of polar vs. apolar structural differentiation at the nm spatial scale, which was fingerprinted by a low Q peak in its X-ray diffraction pattern. Similar to, but to a larger extent than its shorter chain family members (such as DMSO), DBSO was also characterised by an enhanced dipole-dipole correlation, which was responsible for a moderate Kirkwood correlation factor as well as for the self-association detected in this compound. We show, however, that the supposedly relevant hydrogen bonding correlations between oxygen and the butyl chain hydrogens are of a limited extent only, and only in the case of alpha-hydrogens is an appreciable indication of the existence of such an interaction found, albeit this turned out to be a mere consequence of the strong dipole-dipole correlation. C1 [Lo Celso, Fabrizio] Dipartimento Fis & Chim, Viale Sci, Palermo, Italy. [Aoun, Bachir] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Triolo, Alessandro] CNR, Ist Struttura Mat, Lab Liquidi Ion, Rome, Italy. [Russina, Olga] Univ Roma La Sapienza, Dept Chem, Ple Aldo Moro 5, Rome, Italy. RP Triolo, A (reprint author), CNR, Ist Struttura Mat, Lab Liquidi Ion, Rome, Italy.; Russina, O (reprint author), Univ Roma La Sapienza, Dept Chem, Ple Aldo Moro 5, Rome, Italy. EM triolo@ism.cnr.it; olga.russina@uniroma1.it RI Triolo, Alessandro/A-4431-2012; Russina, Olga/G-9780-2012 OI Triolo, Alessandro/0000-0003-4074-0743; FU FIRB [RBFR086BOQ]; DOE Office of Science [DE-AC02-06CH11357] FX A. T. acknowledges support from FIRB (RBFR086BOQ). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. NR 75 TC 0 Z9 0 U1 5 U2 15 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1463-9076 EI 1463-9084 J9 PHYS CHEM CHEM PHYS JI Phys. Chem. Chem. Phys. PD JUN 21 PY 2016 VL 18 IS 23 BP 15980 EP 15987 DI 10.1039/c6cp02335e PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA DP1IF UT WOS:000378243000062 PM 27241730 ER PT J AU Ramirez, JG de la Venta, J Wang, SM Saerbeck, T Basaran, AC Batlle, X Schuller, IK AF Gabriel Ramirez, Juan de la Venta, J. Wang, Siming Saerbeck, Thomas Basaran, Ali C. Batlle, X. Schuller, Ivan K. TI Collective mode splitting in hybrid heterostructures SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC-ANISOTROPY; RESONANCE; FILMS; RELAXATION; LINEWIDTH AB We report on a drastic change of the Ni collective magnetization dynamics when incorporated into a Ni/V2O3 heterostructure. Two, unexpected, well-defined Ni ferromagnetic resonance (FMR) modes are observed in the coexistence region of the first-order V2O3 structural phase transition (SPT). The phase coexistence across the V2O3 SPT can explain the presence of the two resonance fields but not their anticrossing and large linewidth broadenings. Our results imply a strong coupling between the lattice dynamics of the strongly correlated oxide (V2O3) and the magnon modes of the ferromagnet (Ni) in this hybrid. This and additional experiments on Ni grown on SrTiO3, a prototypical second-order phase transition oxide, imply that these effects require the presence of first-order transitions in the oxides. C1 [Gabriel Ramirez, Juan; Wang, Siming; Basaran, Ali C.; Schuller, Ivan K.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Gabriel Ramirez, Juan; Wang, Siming; Basaran, Ali C.; Schuller, Ivan K.] Univ Calif San Diego, Ctr Adv Nanosci, La Jolla, CA 92093 USA. [Gabriel Ramirez, Juan] Univ Los Andes, Dept Phys, Bogota 111711, Colombia. [de la Venta, J.] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA. [Wang, Siming] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Saerbeck, Thomas] Inst Laue Langevin, 71 Ave Martyrs, F-38000 Grenoble, France. [Basaran, Ali C.] Gebze Tech Univ, Dept Phys, TR-41400 Gebze, Kocaeli, Turkey. [Batlle, X.] Univ Barcelona, Dept Fis Mat Condensada, E-08028 Barcelona, Catalonia, Spain. [Batlle, X.] Univ Barcelona, Inst Nanociencia & Nanotecnol, E-08028 Barcelona, Catalonia, Spain. RP Schuller, IK (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.; Schuller, IK (reprint author), Univ Calif San Diego, Ctr Adv Nanosci, La Jolla, CA 92093 USA. EM ischuller@ucsd.edu RI Batlle, Xavier/H-5795-2012; OI Ramirez, Juan Gabriel/0000-0001-8546-6966 FU Office of Basic Energy Science, U.S. Department of Energy [DE FG02-87ER-45332]; Air Force Office of Scientific Research (AFOSR) [FA9550-12-1-0381]; FAPA program through the Facultad de Ciencias; Vicerrectoria de Investigaciones of the Universidad de los Andes, Bogota Colombia; Spanish Ministry of Economy and Competitiveness (MINECO) [MAT2015-68772-P]; Catalan Ministry of Universities, Research and Information Society (DURSI) [2009SGR856, 2014SGR220]; European Union Fondo Europeo de Desarrollo Regional (FEDER) funds (Una manera de hacer Europa); University of Barcelona; U.S. Department of Defense FX We acknowledge fruitful discussions with Axel Hoffmann, Bekir Aktas, and M. R. Fitzsimmons. The magnetism aspects of this paper were supported by the Office of Basic Energy Science, U.S. Department of Energy, under Grant No DE FG02-87ER-45332, and the oxide related science by the Air Force Office of Scientific Research (AFOSR) Grant No. FA9550-12-1-0381. J.G.R. kindly acknowledges support from the FAPA program through the Facultad de Ciencias and Vicerrectoria de Investigaciones of the Universidad de los Andes, Bogota Colombia. X.B. acknowledges the support of the Spanish Ministry of Economy and Competitiveness (MINECO) (No. MAT2015-68772-P), Catalan Ministry of Universities, Research and Information Society (DURSI) (No. 2009SGR856 and No. 2014SGR220), European Union Fondo Europeo de Desarrollo Regional (FEDER) funds (Una manera de hacer Europa), and the University of Barcelona. I.K.S. thanks the U.S. Department of Defense for a National Security Science and Engineering Faculty Fellowship (NSSEFF). NR 33 TC 0 Z9 0 U1 5 U2 12 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 21 PY 2016 VL 93 IS 21 AR 214113 DI 10.1103/PhysRevB.93.214113 PG 5 WC Physics, Condensed Matter SC Physics GA DO9KC UT WOS:000378104100002 ER PT J AU Xiao, Y Kumar, CMN Nandi, S Su, Y Jin, WT Fu, Z Faulhaber, E Schneidewind, A Bruckel, T AF Xiao, Y. Kumar, C. M. N. Nandi, S. Su, Y. Jin, W. T. Fu, Z. Faulhaber, E. Schneidewind, A. Brueckel, Th. TI Spin-wave and electromagnon dispersions in multiferroic MnWO4 as observed by neutron spectroscopy: Isotropic Heisenberg exchange versus anisotropic Dzyaloshinskii-Moriya interaction SO PHYSICAL REVIEW B LA English DT Article ID POLARIZATION; TEMPERATURE; DRIVEN AB High-resolution inelastic neutron scattering reveals that the elementary magnetic excitations in multiferroic MnWO4 consist of low-energy dispersive electromagnons in addition to the well-known spin-wave excitations. The latter can well be modeled by a Heisenberg Hamiltonian with magnetic exchange coupling extending to the 12th nearest neighbor. They exhibit a spin-wave gap of 0.61(1) meV. Two electromagnon branches appear at lower energies of 0.07(1) and 0.45(1) meV at the zone center. They reflect the dynamic magnetoelectric coupling and persist in both the collinear magnetic and paraelectric AF1 phase and the spin spiral ferroelectric AF2 phase. These excitations are associated with the Dzyaloshinskii-Moriya exchange interaction, which is significant due to the rather large spin-orbit coupling. C1 [Xiao, Y.; Nandi, S.; Jin, W. T.; Brueckel, Th.] Forschungszentrum Julich, JARA FIT, Julich Ctr Neutron Sci, D-52425 Julich, Germany. [Xiao, Y.; Nandi, S.; Jin, W. T.; Brueckel, Th.] Forschungszentrum Julich, JARA FIT, Peter Grunberg Inst, D-52425 Julich, Germany. [Kumar, C. M. N.] Forschungszentrum Julich GmbH, Julich Ctr Neutron Sci, Outstn SNS, POB 2008,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. [Kumar, C. M. N.] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. [Nandi, S.; Su, Y.; Jin, W. T.; Fu, Z.; Schneidewind, A.; Brueckel, Th.] Forschungszentrum Julich, Heinz Maier Leibnitz Zentrum, Julich Ctr Neutron Sci, Lichtenbergstr 1, D-85747 Garching, Germany. [Nandi, S.] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India. [Faulhaber, E.] Tech Univ Munich, Heinz Maier Leibnitz Zentrum, Lichtenbergstr 1, D-85748 Garching, Germany. [Faulhaber, E.; Schneidewind, A.] Helmholtz Zentrum Berlin Mat & Energie, Hahn Meitner Pl 1, D-14109 Berlin, Germany. RP Xiao, Y (reprint author), Forschungszentrum Julich, JARA FIT, Julich Ctr Neutron Sci, D-52425 Julich, Germany.; Xiao, Y (reprint author), Forschungszentrum Julich, JARA FIT, Peter Grunberg Inst, D-52425 Julich, Germany. EM y.xiao@fz-juelich.de; n.kumar@fz-juelich.de RI Xiao, Yinguo/N-9069-2015; Su, Yixi/K-9119-2013; OI Su, Yixi/0000-0001-8434-1758; Chogondahalli Muniraju, Naveen Kumar/0000-0002-8867-8291 NR 55 TC 0 Z9 0 U1 9 U2 18 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 21 PY 2016 VL 93 IS 21 AR 214428 DI 10.1103/PhysRevB.93.214428 PG 8 WC Physics, Condensed Matter SC Physics GA DO9KC UT WOS:000378104100004 ER PT J AU Appelquist, T Brower, RC Fleming, GT Hasenfratz, A Jin, XY Kiskis, J Neil, ET Osborn, JC Rebbi, C Rinaldi, E Schaich, D Vranas, P Weinberg, E Witzel, O AF Appelquist, T. Brower, R. C. Fleming, G. T. Hasenfratz, A. Jin, X. Y. Kiskis, J. Neil, E. T. Osborn, J. C. Rebbi, C. Rinaldi, E. Schaich, D. Vranas, P. Weinberg, E. Witzel, O. CA Lattice Strong Dynamics LSD TI Strongly interacting dynamics and the search for new physics at the LHC SO PHYSICAL REVIEW D LA English DT Article ID MESONS AB We present results for the spectrum of a strongly interacting SU(3) gauge theory with N-f = 8 light fermions in the fundamental representation. Carrying out nonperturbative lattice calculations at the lightest masses and largest volumes considered to date, we confirm the existence of a remarkably light singlet scalar particle. We explore the rich resonance spectrum of the 8-flavor theory in the context of the search for new physics beyond the standard model at the Large Hadron Collider (LHC). Connecting our results to models of dynamical electroweak symmetry breaking, we estimate the vector resonance mass to be about 2 TeV with a width of roughly 450 GeV, and predict additional resonances with masses below similar to 3 TeV. C1 [Appelquist, T.; Fleming, G. T.] Yale Univ, Dept Phys, Sloane Lab, New Haven, CT 06520 USA. [Brower, R. C.; Rebbi, C.; Weinberg, E.] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA. [Brower, R. C.; Rebbi, C.] Boston Univ, Ctr Computat Sci, Boston, MA 02215 USA. [Brower, R. C.; Fleming, G. T.; Hasenfratz, A.; Neil, E. T.; Osborn, J. C.; Rinaldi, E.; Schaich, D.; Witzel, O.] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA. [Hasenfratz, A.; Neil, E. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. [Jin, X. Y.; Osborn, J. C.] Argonne Natl Lab, Leadership Comp Facil, 9700 S Cass Ave, Argonne, IL 60439 USA. [Kiskis, J.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Neil, E. T.] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Rinaldi, E.; Vranas, P.] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA. [Schaich, D.] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA. [Schaich, D.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany. [Witzel, O.] Univ Edinburgh, Sch Phys & Astron, Higgs Ctr Theoret Phys, Edinburgh EH9 3JZ, Midlothian, Scotland. RP Appelquist, T (reprint author), Yale Univ, Dept Phys, Sloane Lab, New Haven, CT 06520 USA. RI Schaich, David/J-6644-2013; Jin, Xiao-Yong/R-7694-2016; OI Schaich, David/0000-0002-9826-2951; Jin, Xiao-Yong/0000-0002-2346-6861; Rinaldi, Enrico/0000-0003-4134-809X FU LDRD [13-ERD-023]; U.S. National Science Foundation (NSF) [1066293]; NSF [PHY11-25915, OCI-0749300, PHY-1417402]; U.S. Department of Energy (DOE) [DE-SC0008669, DE-SC0009998]; DOE [DE-SC0010005, DE-SC0012704, DE-SC0010025, DE-AC52-07NA27344, DE-AC02-06CH11357]; STFC [ST/L000458/1]; European Union's Horizon research and innovation programme under the Marie Sklodowska-Curie grant [659322] FX We thank the LatKMI Collaboration for sharing their root 8t0 results prior to the publication of Ref. [43]. We thank the Lawrence Livermore National Laboratory (LLNL) Multiprogrammatic and Institutional Computing program for Grand Challenge allocations and time on the LLNL BlueGene/Q supercomputer, along with funding from LDRD 13-ERD-023. Additional numerical analyses were carried out on clusters at LLNL, Boston University and Fermilab. Part of this work was performed at the Aspen Center for Physics (R. C. B., G. T. F., A. H., C. R. and D. S.) supported by the U.S. National Science Foundation (NSF) under Grant No. 1066293, and at the Kavli Institute for Theoretical Physics (R. C. B., G. T. F., A. H., E. T. N., E. R., D. S. and O. W.) supported by NSF Grant No. PHY11-25915. D. S. was supported by the U.S. Department of Energy (DOE) under Grant Nos. DE-SC0008669 and DE-SC0009998. A. H. and E. T. N. were supported by DOE grant DE-SC0010005; Brookhaven National Laboratory is supported by the DOE under contract DE-SC0012704. R. C. B., C. R. and E. W. were supported by DOE grant DE-SC0010025. In addition, R. C. B. and C. R. acknowledge the support of NSF Grant No. OCI-0749300. O. W. was supported by STFC, Grant No. ST/L000458/1; this project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 659322. G. T. F. was supported by NSF Grant No. PHY-1417402. E. R. and P. V. acknowledge the support of the DOE under Contract No. DE-AC52-07NA27344 (LLNL). Argonne National Laboratory is supported by the DOE under Contract No. DE-AC02-06CH11357. NR 52 TC 3 Z9 3 U1 2 U2 3 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 21 PY 2016 VL 93 IS 11 AR 114514 DI 10.1103/PhysRevD.93.114514 PG 6 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP0UC UT WOS:000378204300004 ER PT J AU Soni, A Zhang, Y AF Soni, Amarjit Zhang, Yue TI Hidden SU(N) glueball dark matter SO PHYSICAL REVIEW D LA English DT Article ID GAMMA-RAYS; CONSTRAINTS; HALO AB We investigate the possibility that the dark matter candidate is from a pure non-Abelian gauge theory of the hidden sector, motivated in large part by its elegance and simplicity. The dark matter is the lightest bound state made of the confined gauge fields, the hidden glueball. We point out that this simple setup is capable of providing rich and novel phenomena in the dark sector, especially in the parameter space of large N. They include self-interacting and warm dark matter scenarios, Bose-Einstein condensation leading to massive dark stars possibly millions of times heavier than our sun giving rise to gravitational lensing effects, and indirect detections through higher dimensional operators as well as interesting collider signatures. C1 [Soni, Amarjit] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Zhang, Yue] CALTECH, Walter Burke Inst Theoret Phys, Pasadena, CA 91125 USA. RP Soni, A (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. FU DOE [DE-SC0012704, DE-SC0011632, DE-SC0010255]; Gordon and Betty Moore Foundation [776] FX One of us (A. S.) wants to thank Alex Kusenko for useful conversations. The work of A. S. is supported in part by the DOE Grant No. DE-SC0012704. The work of Y. Z. is supported by the Gordon and Betty Moore Foundation through Grant No. 776 to the Caltech Moore Center for Theoretical Cosmology and Physics, and by the DOE Grants No. DE-SC0011632 and No. DE-SC0010255. NR 40 TC 4 Z9 4 U1 1 U2 1 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 21 PY 2016 VL 93 IS 11 AR 115025 DI 10.1103/PhysRevD.93.115025 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA DP0UC UT WOS:000378204300005 ER PT J AU Nesterov, AI Ramirez, MF Berman, GP Mavromatos, NE AF Nesterov, Alexander I. Ramirez, Monica F. Berman, Gennady P. Mavromatos, Nick E. TI Nonlinear dynamics of dipoles in microtubules: Pseudospin model SO PHYSICAL REVIEW E LA English DT Article ID ENERGY-TRANSFER AB We perform a theoretical study of the dynamics of the electric field excitations in a microtubule by taking into consideration the realistic cylindrical geometry, dipole-dipole interactions of the tubulin-based protein heterodimers, the radial electric field produced by the solvent, and a possible degeneracy of energy states of individual heterodimers. The consideration is done in the frame of the classical pseudospin model. We derive the system of nonlinear dynamical partial differential equations of motion for interacting dipoles and the continuum version of these equations. We obtain the solutions of these equations in the form of snoidal waves, solitons, kinks, and localized spikes. Our results will help to achieve a better understanding of the functional properties of microtubules including the motor protein dynamics and the information transfer processes. Our considerations are based on classical dynamics. Some speculations on the role of possible quantum effects are also made. C1 [Nesterov, Alexander I.; Ramirez, Monica F.] Univ Guadalajara, Dept Fis, Ctr Univ Ciencias Exactas & Ingn, Ave Revoluc 1500, Guadalajara 44420, Jalisco, Mexico. [Berman, Gennady P.] Los Alamos Natl Lab, Biosci Div, POB 1663, Los Alamos, NM 87544 USA. [Berman, Gennady P.] New Mexico Consortium, Los Alamos, NM 87544 USA. [Mavromatos, Nick E.] Kings Coll London, Dept Phys, London WC2R 2LS, England. RP Nesterov, AI (reprint author), Univ Guadalajara, Dept Fis, Ctr Univ Ciencias Exactas & Ingn, Ave Revoluc 1500, Guadalajara 44420, Jalisco, Mexico. EM nesterov@cencar.udg.mx; monica.felipa@gmail.com; gpb@lanl.gov; nikolaos.mavromatos@kcl.ac.uk FU National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; CONACyT; STFC (United Kingdom) [ST/L000326/1] FX The work of G.P.B. 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. A.I.N. and M.F.R. acknowledge support from the CONACyT. The work of N.E.M. was partially supported by STFC (United Kingdom) under Grant No. ST/L000326/1. NR 28 TC 0 Z9 0 U1 6 U2 6 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 21 PY 2016 VL 93 IS 6 AR 062412 DI 10.1103/PhysRevE.93.062412 PG 12 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA DP0VE UT WOS:000378207300001 PM 27415303 ER PT J AU Alberi, K Scarpulla, MA AF Alberi, K. Scarpulla, M. A. TI Suppression of compensating native defect formation during semiconductor processing via excess carriers SO SCIENTIFIC REPORTS LA English DT Article ID MOLECULAR-BEAM EPITAXY; GALLIUM ANTIMONIDE; SELF-DIFFUSION; MBE GROWTH; RECOMBINATION; STATISTICS; ZNSE; GASB AB In many semiconductors, compensating defects set doping limits, decrease carrier mobility, and reduce minority carrier lifetime thus limiting their utility in devices. Native defects are often responsible. Suppressing the concentrations of compensating defects during processing close to thermal equilibrium is difficult because formation enthalpies are lowered as the Fermi level moves towards the majority band edge. Excess carriers, introduced for example by photogeneration, modify the formation enthalpy of semiconductor defects and thus can be harnessed during crystal growth or annealing to suppress defect populations. Herein we develop a rigorous and general model for defect formation in the presence of steady-state excess carrier concentrations by combining the standard quasi-chemical formalism with a detailed-balance description that is applicable for any defect state in the bandgap. Considering the quasi-Fermi levels as chemical potentials, we demonstrate that increasing the minority carrier concentration increases the formation enthalpy for typical compensating centers, thus suppressing their formation. This effect is illustrated for the specific example of GaSb. While our treatment is generalized for excess carrier injection or generation in semiconductors by any means, we provide a set of guidelines for applying the concept in photoassisted physical vapor deposition. C1 [Alberi, K.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Scarpulla, M. A.] Univ Utah, Mat Sci & Engn, Salt Lake City, UT 84112 USA. [Scarpulla, M. A.] Univ Utah, Elect & Comp Engn, Salt Lake City, UT 84112 USA. RP Alberi, K (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.; Scarpulla, MA (reprint author), Univ Utah, Mat Sci & Engn, Salt Lake City, UT 84112 USA.; Scarpulla, MA (reprint author), Univ Utah, Elect & Comp Engn, Salt Lake City, UT 84112 USA. EM Kirstin.Alberi@nrel.gov; scarpulla@eng.utah.edu FU Department of Energy Office of Science, Basic Energy Sciences [DE-AC36-08GO28308, DE-SC0001630] FX We acknowledge the financial support of the Department of Energy Office of Science, Basic Energy Sciences under contracts DE-AC36-08GO28308 (K.A) and DE-SC0001630 (M.A.S). M.A.S acknowledges G. Stringfellow for helpful discussions and R. Collazo for sharing theses from his group. NR 39 TC 3 Z9 3 U1 9 U2 14 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 21 PY 2016 VL 6 AR 27954 DI 10.1038/srep27954 PG 9 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP1EP UT WOS:000378233600001 PM 27323863 ER PT J AU Das, S Bera, MK Tong, S Narayanan, B Kamath, G Mane, A Paulikas, AP Antonio, MR Sankaranarayanan, SKRS Roelofs, AK AF Das, Saptarshi Bera, Mrinal K. Tong, Sheng Narayanan, Badri Kamath, Ganesh Mane, Anil Paulikas, Arvydas P. Antonio, Mark R. Sankaranarayanan, Subramanian K. R. S. Roelofs, Andreas K. TI A Self-Limiting Electro-Ablation Technique for the Top-Down Synthesis of Large-Area Monolayer Flakes of 2D Materials SO SCIENTIFIC REPORTS LA English DT Article ID MOS2 ATOMIC LAYERS; VAPOR-PHASE GROWTH; RAMAN-SPECTROSCOPY; THERMAL-OXIDATION; TRANSISTORS; EXFOLIATION; TIN AB We report the discovery of an electrochemical process that converts two dimensional layered materials of arbitrary thicknesses into monolayers. The lateral dimensions of the monolayers obtained by the process within a few seconds time at room temperature were as large as 0.5 mm. The temporal and spatial dynamics of this physical phenomenon, studied on MoS2 flakes using ex-situ AFM imaging, Raman mapping, and photoluminescence measurements trace the origin of monolayer formation to a substrate-assisted self-limiting electrochemical ablation process. Electronic structure and atomistic calculations point to the interplay between three essential factors in the process: (1) strong covalent interaction of monolayer MoS2 with the substrate; (2) electric-field induced differences in Gibbs free energy of exfoliation; (3) dispersion of MoS2 in aqueous solution of hydrogen peroxide. This process was successful in obtaining monolayers of other 2D transition metal dichalcogenides, like WS2 and MoTe2 as well. C1 [Das, Saptarshi] Penn State Univ, Dept Engn Sci & Mech, State Coll, PA 16803 USA. [Das, Saptarshi] Penn State Univ, Mat Res Inst, State Coll, PA 16803 USA. [Bera, Mrinal K.] European Synchrotron Radiat Facil, DUBBLE CRG, CS40220, F-38043 Grenoble 9, France. [Tong, Sheng; Narayanan, Badri; Sankaranarayanan, Subramanian K. R. S.; Roelofs, Andreas K.] Argonne Natl Lab, Nanosci & Technol Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Kamath, Ganesh] Univ Missouri, Dept Chem, Columbia, MO 65211 USA. [Mane, Anil] Argonne Natl Lab, Energy Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Paulikas, Arvydas P.] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Antonio, Mark R.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Das, S (reprint author), Penn State Univ, Dept Engn Sci & Mech, State Coll, PA 16803 USA.; Das, S (reprint author), Penn State Univ, Mat Res Inst, State Coll, PA 16803 USA.; Bera, MK (reprint author), European Synchrotron Radiat Facil, DUBBLE CRG, CS40220, F-38043 Grenoble 9, France. EM sud70@psu.edu; mrinal.bera@esrf.fr RI Tong, Sheng/A-2129-2011 OI Tong, Sheng/0000-0003-0355-7368 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX Use of the Center for Nanoscale Materials and research conducted in the Chemical Sciences and Engineering Division 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. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 34 TC 1 Z9 1 U1 16 U2 49 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 21 PY 2016 VL 6 AR 28195 DI 10.1038/srep28195 PG 9 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DO9RK UT WOS:000378124300001 PM 27323877 ER PT J AU Meyers, D Liu, J Freeland, JW Middey, S Kareev, M Kwon, J Zuo, JM Chuang, YD Kim, JW Ryan, PJ Chakhalian, J AF Meyers, D. Liu, Jian Freeland, J. W. Middey, S. Kareev, M. Kwon, Jihwan Zuo, J. M. Chuang, Yi-De Kim, J. W. Ryan, P. J. Chakhalian, J. TI Pure electronic metal-insulator transition at the interface of complex oxides SO SCIENTIFIC REPORTS LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; PHASE-TRANSITION; MOTT TRANSITION; ORDER; SPECTROSCOPY; DIFFRACTION; MANGANITES; COLLOQUIUM; PROGRESS; CHARGE AB In complex materials observed electronic phases and transitions between them often involve coupling between many degrees of freedom whose entanglement convolutes understanding of the instigating mechanism. Metal-insulator transitions are one such problem where coupling to the structural, orbital, charge, and magnetic order parameters frequently obscures the underlying physics. Here, we demonstrate a way to unravel this conundrum by heterostructuring a prototypical multi-ordered complex oxide NdNiO3 in ultra thin geometry, which preserves the metal-to-insulator transition and bulk-like magnetic order parameter, but entirely suppresses the symmetry lowering and long-range charge order parameter. These findings illustrate the utility of heterointerfaces as a powerful method for removing competing order parameters to gain greater insight into the nature of the transition, here revealing that the magnetic order generates the transition independently, leading to an exceptionally rare purely electronic metal-insulator transition with no symmetry change. C1 [Meyers, D.; Middey, S.; Kareev, M.; Chakhalian, J.] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA. [Liu, Jian] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Freeland, J. W.; Kim, J. W.; Ryan, P. J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Kwon, Jihwan; Zuo, J. M.] Univ Illinois, Dept Mat Sci & Engn, 1304 W Green St, Urbana, IL 61801 USA. [Chuang, Yi-De] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Meyers, D (reprint author), Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.; Liu, J (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. EM dmeyers@bnl.gov; jianliu@utk.edu RI Liu, Jian/I-6746-2013; Chakhalian, Jak/F-2274-2015 OI Liu, Jian/0000-0001-7962-2547; FU Gordon and Betty Moore Foundation EPiQS Initiative [GBMF4534]; Department of Energy [DE-SC0012375]; DOD-ARO [0402-17291]; Science Alliance Joint Directed Research and Development Program at the University of Tennessee; U.S. Department of Energy, Office of Science [DEAC02-06CH11357, DE-AC02-05CH11231] FX J. C. was primarily supported by the Gordon and Betty Moore Foundation EPiQS Initiative through grant number GBMF4534. S. M. and D. M. were supported by the Department of Energy grant DE-SC0012375 for synchrotron work at the Advanced Photon Source. M. K. was supported by the DOD-ARO under grant number 0402-17291 for material synthesis. J. L. is sponsored by the Science Alliance Joint Directed Research and Development Program at the University of Tennessee. Work at the Advanced Photon Source is supported by the U.S. Department of Energy, Office of Science under grant No. DEAC02-06CH11357. Work at the Advanced Light Source is supported by the U.S. Department of Energy, Office of Science under Contract No. DE-AC02-05CH11231. We acknowledge insightful discussions with D. Khosmskii, A. J. Millis, D. D. Sarma, P. Mahadevan, G. Kotlier, and W. Plummer. NR 75 TC 0 Z9 0 U1 11 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 21 PY 2016 VL 6 AR 27934 DI 10.1038/srep27934 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA DP1EM UT WOS:000378233300001 PM 27324948 ER EF