FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Talbayev, D Burch, KS Chia, EEM Trugman, SA Zhu, JX Bauer, ED Kennison, JA Mitchell, JN Thompson, JD Sarrao, JL Taylor, AJ AF Talbayev, D. Burch, K. S. Chia, Elbert E. M. Trugman, S. A. Zhu, J. -X. Bauer, E. D. Kennison, J. A. Mitchell, J. N. Thompson, J. D. Sarrao, J. L. Taylor, A. J. TI Hybridization and Superconducting Gaps in the Heavy-Fermion Superconductor PuCoGa5 Probed via the Dynamics of Photoinduced Quasiparticles SO PHYSICAL REVIEW LETTERS LA English DT Article ID TRANSITION-TEMPERATURE; ELECTRON; RELAXATION AB We have examined the relaxation of photoinduced quasiparticles in the heavy-fermion superconductor PuCoGa5. The deduced electron-phonon coupling constant is incompatible with the measured superconducting transition temperature T-c = 18.5 K, which speaks against phonon-mediated superconductivity. Upon lowering the temperature, we observe an order-of-magnitude increase of the quasiparticle relaxation time in agreement with the phonon bottleneck scenario-evidence for a hybridization gap in the electronic density of states. The modification of photoinduced reflectance in the superconducting state is consistent with the heavy character of the quasiparticles that participate in Cooper pairing. C1 [Talbayev, D.; Trugman, S. A.; Zhu, J. -X.; Bauer, E. D.; Kennison, J. A.; Mitchell, J. N.; Thompson, J. D.; Sarrao, J. L.; Taylor, A. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Burch, K. S.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Burch, K. S.] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada. [Chia, Elbert E. M.] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore. RP Talbayev, D (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM diyar.talbayev@yale.edu RI Talbayev, Diyar/C-5525-2009; Chia, Elbert/B-6996-2011; Bauer, Eric/D-7212-2011; Mitchell, Jeremy/E-2875-2010 OI Trugman, Stuart/0000-0002-6688-7228; Bauer, Eric/0000-0003-0017-1937; Talbayev, Diyar/0000-0003-3537-1656; Chia, Elbert/0000-0003-2066-0834; Zhu, Jianxin/0000-0001-7991-3918; Mitchell, Jeremy/0000-0001-7109-3505 FU LDRD program at Los Alamos National Laboratory; U.S. DOE Office of Science; Center for Integrated Nanotechnologies; Singapore Ministry of Education [RG41/07, ARC23/08] FX This work was supported by the LDRD program at Los Alamos National Laboratory, the U.S. DOE Office of Science, and by the Center for Integrated Nanotechnologies. E. E. M. C. is supported by the Singapore Ministry of Education AcRF Tier 1 (RG41/07) and Tier 2 (ARC23/08). NR 31 TC 18 Z9 18 U1 2 U2 20 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD JUN 2 PY 2010 VL 104 IS 22 AR 227002 DI 10.1103/PhysRevLett.104.227002 PG 4 WC Physics, Multidisciplinary SC Physics GA 604UC UT WOS:000278303000014 PM 20867199 ER PT J AU Barat, K Dennis, JE AF Barat, Ken Dennis, Jerome E. TI Laser Safety Standards THROUGH THE YEARS SO PHOTONICS SPECTRA LA English DT Article C1 [Barat, Ken] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Dennis, Jerome E.] IEC TC 76, Geneva, Switzerland. RP Barat, K (reprint author), Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM kbarat@lbl.gov; jerodeni2@comcast.net NR 0 TC 0 Z9 0 U1 0 U2 1 PU LAURIN PUBL CO INC PI PITTSFIELD PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 USA SN 0731-1230 J9 PHOTONIC SPECTRA JI Photon. Spect. PD JUN PY 2010 VL 44 IS 6 BP 68 EP + PG 4 WC Optics SC Optics GA 762HB UT WOS:000290464700019 ER PT J AU O'Bryan, G Wong, BM McElhanon, JR AF O'Bryan, Greg Wong, Bryan M. McElhanon, James R. TI Stress Sensing in Polycaprolactone Films via an Embedded Photochromic Compound SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE mechanochromic; photochromic; spiropyran; ROP; DFT ID MOLECULAR-LEVEL; POLYMERS; SPIROPYRAN; SYSTEMS AB A photochromic polymer exhibiting mechanochromic behavior is prepared by means of ring-opening polymerization (ROP) of epsilon-caprolactone by utilizing a difunctional indolinospiropyran as an initiator. The configuration of having the photochromic initiating species within the polymer backbone leads to a mechanochromic effect with deformation of polymer films leading to ring-opening of the Spiro C-O bond to form the colored merocyanine. Active stress monitoring by dynamic mechanical analysis (DMA) in tension mode was used to probe the effects of UV irradiation on polymer films held under constant strain. Irradiation with UV light induces a negative change in the polymer stress of approximately 50 kPa. Finally, a model of the mechanochromic effect was performed using density functional theory (DFT) and time-dependent DFT (TDDFT) calculations. A sharp increase in the relative molecular energy and the absorption wavelength as well as a drastic decrease in the spiro-oxygen atom charge occurred at a molecular elongation of >39%. C1 [O'Bryan, Greg; McElhanon, James R.] Sandia Natl Labs, Livermore, CA 94551 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP O'Bryan, G (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94551 USA. EM gobryan@sandia.gov RI Wong, Bryan/B-1663-2009 OI Wong, Bryan/0000-0002-3477-8043 FU United States Department of Energy [DE-AC04-94-AL85000] FX This project is supported by the Laboratory Directed Research and Development program at Sandia National Laboratories, a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94-AL85000. NR 28 TC 74 Z9 74 U1 6 U2 65 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 PY 2010 VL 2 IS 6 BP 1594 EP 1600 DI 10.1021/am100050v PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA 613FG UT WOS:000278963600009 PM 20568704 ER PT J AU Pulsipher, DJV Martin, IT Fisher, ER AF Pulsipher, Daniel J. V. Martin, Ina T. Fisher, Ellen R. TI Controlled Nitrogen Doping and Film Colorimetrics in Porous TiO2 Materials Using Plasma Processing SO ACS APPLIED MATERIALS & INTERFACES LA English DT Article DE titanium dioxide; photocatalysis; photovoltaic; plasma surface modification ID RAY PHOTOELECTRON-SPECTROSCOPY; LIGHT PHOTOCATALYTIC ACTIVITY; CHEMICAL-VAPOR-DEPOSITION; TITANIUM NITRIDE COATINGS; TINX THIN-FILMS; VISIBLE-LIGHT; DOPED TIO2; SINGLE-CRYSTALS; OPTICAL-PROPERTIES; SURFACE AB Nitrogen doping of TiO2 films (N:TiO2) has been shown to improve the visible-light sensitivity of TiO2, thereby increasing the performance of both photovoltaic and photocatalytic devices. Inductively coupled rf plasmas containing a wide range of nitrogen precursors were used to create nitrogen-doped TiO2 films. These treatments resulted in anatase-phased materials with as high as 34% nitrogen content. As monitored with high-resolution X-ray photoelectron spectroscopy spectra, the nitrogen binding environments within the films were controlled by varying the plasma processing conditions. XPS peak assignments for multiple N 1s binding environments were made based on high resolution Ti 2p and O 1s XPS spectra, Fourier transform infrared spectroscopy (FTIR) data, and literature N 1s XPS peak assignments. The N:TiO2 films produced via plasma treatments displayed colors ranging from gray to brown to blue to black, paralleling the N/Ti ratios of the films. Three possible mechanisms to explain the color changes in these materials are presented. C1 [Pulsipher, Daniel J. V.; Fisher, Ellen R.] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. [Martin, Ina T.] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA. RP Fisher, ER (reprint author), Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. EM Ellen.Fisher@colostate.edu RI Martin, Ina/J-9484-2012 FU Center for Revolutionary Solar Photoconversion (CRSP) FX Financial support for this work came from the Center for Revolutionary Solar Photoconversion (CRSP). We also gratefully acknowledge helpful conversations with Prof. C. Michael Elliott and Mr. Joshua M. Stillahn. NR 77 TC 27 Z9 27 U1 1 U2 39 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 PY 2010 VL 2 IS 6 BP 1743 EP 1753 DI 10.1021/am100233j PG 11 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA 613FG UT WOS:000278963600030 PM 20527731 ER PT J AU Finney, L Chishti, Y Khare, T Giometti, C Levina, A Lay, PA Vogt, S AF Finney, Lydia Chishti, Yasmin Khare, Tripti Giometti, Carol Levina, Aviva Lay, Peter A. Vogt, Stefan TI Imaging Metals in Proteins by Combining Electrophoresis with Rapid X-ray Fluorescence Mapping SO ACS CHEMICAL BIOLOGY LA English DT Article ID PLASMA-MASS SPECTROMETRY; CHROMIUM(III) NUTRITIONAL SUPPLEMENTS; BIOINORGANIC SPECIATION ANALYSIS; GEL-ELECTROPHORESIS; ATOMIC SPECTROMETRY; METALLOPROTEIN ANALYSIS; TRACE-ELEMENTS; SHEWANELLA; BINDING; COPPER AB Growing evidence points toward a very dynamic role for metals in biology. This suggests that physiological circumstance may mandate metal ion redistribution among ligands. This work addresses a critical need for technology that detects, identifies, and measures the metal-containing components of complex biological matrixes. We describe a direct, user-friendly approach for identifying and quantifying metal protein adducts in complex samples using native- or SDS-PAGE, blotting, and rapid synchrotron X-ray fluorescence mapping with micro-XANES (X-ray absorption near-edge structure) of entire blots. The identification and quantification of each metal bound to a protein spot has been demonstrated, and the technique has been applied in two exemplary cases. In the first, the speciation of the in vitro binding of exogenous chromium to blood serum proteins was influenced markedly by both the oxidation state of chromium exposed to the serum proteins and the treatment conditions, which is of relevance to the biochemistry of Cr dietary supplements. In the second case, in vivo changes in endogenous metal speciation were examined to probe the influence of oxygen depletion on iron speciation in Shewanella oneidensis. C1 [Finney, Lydia; Chishti, Yasmin; Khare, Tripti; Giometti, Carol] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Finney, Lydia; Vogt, Stefan] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Levina, Aviva; Lay, Peter A.] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. RP Finney, L (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM lfinney@anl.gov RI Lay, Peter/B-4698-2014; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013; OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513; Lay, Peter/0000-0002-3232-2720 FU DOE Office of Science [DE-AC02-06CH11357]; Australian Research Council (ARC) [DP0774173, DP0984722] FX The authors thank K. Kemner, whose published work initiated efforts at ANL into this area, for helpful discussions. We also thank K. Kemner and E. O'Loughlin for their assistance with our ICP-AES measurments. This work was supported by the DOE Office of Science under contract DE-AC02-06CH11357 and the Australian Research Council (ARC) for Discovery Grants (PAL., DP0774173 and DP0984722) that include an ARC Professorial Fellowship to P.A.L. NR 64 TC 38 Z9 38 U1 3 U2 45 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1554-8929 EI 1554-8937 J9 ACS CHEM BIOL JI ACS Chem. Biol. PD JUN PY 2010 VL 5 IS 6 BP 577 EP 587 DI 10.1021/cb1000263 PG 11 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 611TJ UT WOS:000278845700006 PM 20392082 ER PT J AU Yuk, JM Kim, K Lee, Z Watanabe, M Zettl, A Kim, TW No, YS Choi, WK Lee, JY AF Yuk, Jong Min Kim, Kwanpyo Lee, Zonghoon Watanabe, Masashi Zettl, A. Kim, Tae Whan No, Young Soo Choi, Won Kook Lee, Jeong Yong TI Direct Fabrication of Zero- and One-Dimensional Metal Nanocrystals by Thermally Assisted Electromigration SO ACS NANO LA English DT Article DE nanodots; nanowires; nanorods; nanostructures; in situ nanofabrication; scanning probe; metal; Joule heating; electromigration; in situ transmission electron microscopy ID SCANNING TUNNELING MICROSCOPE; ZNO THIN-FILM; SINGLE-ELECTRON TRANSISTOR; ROOM-TEMPERATURE; SURFACES; DEVICES; ATOMS AB Zero- and one-dimensional metal nanocrystals were successfully fabricated with accurate control in size, shape, and position on semiconductor surfaces by using a novel in situ fabrication method of the nanocrystal with a biasing tungsten tip in transmission electron microscopy. The dominant mechanism of nanocrystal formation was identified mainly as local Joule heating-assisted electromigration through the direct observation of formation and growth processes of the nanocrystal. This method was applied to extracting metal atoms with an exceedingly faster growth rate (similar to 10(5) atoms/s) from a metal-oxide thin film to form a metal nanocrystal with any desired size and position. By real-time observation of the microstructure and concurrent electrical measurements, it was found that the nanostructure formation can be completely controlled into various shapes such as zero-dimensional nanodots and one-dimensional nanowires/nanorods. C1 [Yuk, Jong Min; Lee, Jeong Yong] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea. [Yuk, Jong Min; Lee, Zonghoon; Watanabe, Masashi] Univ Calif Berkeley, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. [Kim, Kwanpyo; Zettl, A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Kim, Kwanpyo; Zettl, A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Kim, Kwanpyo; Zettl, A.] Univ Calif Berkeley, Ctr Integrated Nanomech Syst, Berkeley, CA 94720 USA. [Kim, Tae Whan; No, Young Soo] Hanyang Univ, Dept Elect & Commun Engn, Natl Res Lab Nano Quantum Elect Lab, Seoul 133791, South Korea. [Choi, Won Kook] Korea Inst Sci & Technol, Thin Film Mat Res Ctr, Seoul 136791, South Korea. RP Lee, JY (reprint author), Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea. EM j.y.lee@kaist.ac.kr RI Lee, Jeong Yong/C-8864-2011; Lee, Zonghoon/G-1474-2011; Kim, Kwanpyo/D-9121-2011; Yuk, Jong Min/I-8770-2016; Zettl, Alex/O-4925-2016; Lee, Junyoung/D-5463-2012 OI Lee, Zonghoon/0000-0003-3246-4072; Kim, Kwanpyo/0000-0001-8497-2330; Yuk, Jong Min/0000-0002-4677-7363; Zettl, Alex/0000-0001-6330-136X; Lee, Junyoung/0000-0001-6689-2759 FU U.S. Department of Energy [DE-AC02-05CH11231]; Ministry of Education, Science and Technology [2009-0094040]; Korea government (MEST) [R0A-2007-000-20044-0]; Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Samsung Scholarship FX We thank Mr. Swannee J. Shin at University of California, Berkeley, for discussions. Portions of the present study were performed at the National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, which is supported by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. J.M.Y. acknowledges the financial support by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0094040). T.W.K. and Y.S.N. acknowledge the financial support by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (No. R0A-2007-000-20044-0). A.Z. and K.K. acknowledge the financial support by the Director, Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. K.K. received further support from a Samsung Scholarship. NR 31 TC 7 Z9 7 U1 0 U2 17 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD JUN PY 2010 VL 4 IS 6 BP 2999 EP 3004 DI 10.1021/nn901674p PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 612HU UT WOS:000278888600006 PM 20465220 ER PT J AU Duque, JG Parra-Vasquez, ANG Behabtu, N Green, MJ Higginbotham, AL Price, BK Leonard, AD Schmidt, HK Lounis, B Tour, JM Doorn, SK Cognet, L Pasquali, M AF Duque, Juan G. Parra-Vasquez, A. Nicholas G. Behabtu, Natnael Green, Micah J. Higginbotham, Amanda L. Price, B. Katherine Leonard, Ashley D. Schmidt, Howard K. Lounis, Brahim Tour, James M. Doorn, Stephen K. Cognet, Laurent Pasquali, Matteo TI Diameter-Dependent Solubility of Single-Walled Carbon Nanotubes SO ACS NANO LA English DT Article DE single-walled carbon nanotubes; solubility; solutions; dispersions; diameter ID RAMAN-SPECTROSCOPY; HIPCO PROCESS; DISPERSIONS; FUNCTIONALIZATION; LUMINESCENCE; FLUORESCENCE; SURFACTANTS; MORPHOLOGY; GRAPHENE; SPECTRA AB We study the solubility and dispersibility of as-produced and purified HiPco single-walled carbon nanotubes (SWNTs). Variation in specific operating conditions of the HiPco process are found to lead to significant differences in the respective SWNT solubilities in oleum and surfactant suspensions. The diameter distributions of SWNTs dispersed in surfactant solutions are batch-dependent, as evidenced by luminescence and Raman spectroscopies, but are identical for metallic and semiconducting SWNTs within a batch. We thus find that small diameter SWNTs disperse at higher concentration in aqueous surfactants and dissolve at higher concentration in oleum than do large-diameter SWNTs. These results highlight the importance of controlling SWNT synthesis methods in order to optimize processes dependent on solubility, including macroscopic processing such as fiber spinning, material reinforcement, and films production, as well as for fundamental research in type selective chemistry, optoelectronics, and nanophotonics. C1 [Duque, Juan G.; Parra-Vasquez, A. Nicholas G.; Behabtu, Natnael; Green, Micah J.; Schmidt, Howard K.; Pasquali, Matteo] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA. [Duque, Juan G.; Parra-Vasquez, A. Nicholas G.; Behabtu, Natnael; Green, Micah J.; Schmidt, Howard K.; Tour, James M.; Pasquali, Matteo] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA. [Duque, Juan G.; Doorn, Stephen K.] Los Alamos Natl Lab, Phys Chem & Appl Spect C PCS Grp, Los Alamos, NM 87544 USA. [Duque, Juan G.] Univ Bordeaux, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France. [Duque, Juan G.] CNRS, F-33405 Talence, France. [Higginbotham, Amanda L.; Price, B. Katherine; Leonard, Ashley D.; Tour, James M.; Pasquali, Matteo] Rice Univ, Dept Chem, Houston, TX 77005 USA. RP Pasquali, M (reprint author), Rice Univ, Dept Chem & Biomol Engn, 6100 Main St, Houston, TX 77005 USA. EM mp@rice.edu RI Duque, Juan/G-2657-2010; Cognet, Laurent/F-4163-2011; Pasquali, Matteo/A-2489-2008; Parra-Vasquez, Nicholas/E-9001-2013; Green, Micah/C-7647-2011; Lounis, Brahim/I-7862-2016 OI Tour, James/0000-0002-8479-9328; Cognet, Laurent/0000-0002-3573-5387; Pasquali, Matteo/0000-0001-5951-395X; Green, Micah/0000-0001-5691-0861; FU Robert A. Welch Foundation [C-1668]; NSF Center for Biological and Environmental Nanotechnology [EEC-0118007, EEC-0647452]; AFOSR [FA9550-06-1-0207, FA9550-09-01-0590]; AFRL [07-S568-0042-01-C1, FA8650-07-2-5061]; LANL; Evans-Attwell Welch Postdoctoral Fellowship FX The authors thank Prof. Bruce Weisman and Dmitri Tsyboullski for technical discussions. We also thank Steven Ho, Chris Harris, and Steve Ripley for producing the SWNTs with the desired conditions and their technical assistance. We thank the Robert A. Welch Foundation (C-1668), the NSF Center for Biological and Environmental Nanotechnology (EEC-0118007 and EEC-0647452), AFOSR Grants FA9550-06-1-0207 and FA9550-09-01-0590, AFRL contracts 07-S568-0042-01-C1 and FA8650-07-2-5061, and LANL Laboratory Directed Research and Development (LDRD) program for financial support. J.G.D. thanks LANL Director's Postdoc Fellowship program and M.J.G. thanks the Evans-Attwell Welch Postdoctoral Fellowship. NR 63 TC 37 Z9 37 U1 3 U2 71 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD JUN PY 2010 VL 4 IS 6 BP 3063 EP 3072 DI 10.1021/nn100170f PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 612HU UT WOS:000278888600014 PM 20521799 ER PT J AU Gargas, DJ Moore, MC Ni, A Chang, SW Zhang, ZY Chuang, SL Yang, PD AF Gargas, Daniel J. Moore, Michael C. Ni, Adrian Chang, Shu-Wei Zhang, Zhaoyu Chuang, Shun-Lien Yang, Peidong TI Whispering Gallery Mode Lasing from Zinc Oxide Hexagonal Nanodisks SO ACS NANO LA English DT Article DE ZnO; lasing; whispering gallery; disk; mode simulation ID MICRODISK LASERS; EMISSION; MICROCAVITY; CAVITIES AB Disk-shaped semiconductor nanostructures provide enhanced architectures for low-threshold whispering gallery mode (WGM) lasing with the potential for on-chip nanophotonic integration. Unlike cavities that lase via Fabry-Perot modes, WGM structures utilize low-loss, total internal reflection of the optical mode along the circumference of the structure, which effectively reduces the volume of gain material required for lasing. As a result, circularly resonant cavities provide much higher quality (Q) factors than lower reflection linear cavities, which makes nanodisks an ideal platform to investigate lasing nanostructures smaller than the free-space wavelength of light (i.e., subwavelength laser). Here we report the bottom-up synthesis and single-mode lasing properties of individual ZnO disks with diameters from 280 to 900 nm and show finite difference time domain (FDTD) simulations of the whispering gallery mode inside subwavelength diameter disks. These results demonstrate ultraviolet WGM lasing in chemically synthesized, isolated nanostructures with subwavelength diameters. C1 [Gargas, Daniel J.; Moore, Michael C.; Zhang, Zhaoyu; Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Gargas, Daniel J.; Moore, Michael C.; Zhang, Zhaoyu; Yang, Peidong] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Ni, Adrian; Chang, Shu-Wei; Chuang, Shun-Lien] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA. RP Yang, PD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM p_yang@berkeley.edu RI Chang, Shu-Wei/E-4583-2011 OI Chang, Shu-Wei/0000-0003-0880-2385 FU DARPA; NSF FX This work was supported by the DARPA NACHOS program. P.Y. would like to thank NSF for the A.T. Waterman Award. The authors thank Ruoxue Yan for assistance with figure illustration. NR 30 TC 120 Z9 120 U1 17 U2 137 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD JUN PY 2010 VL 4 IS 6 BP 3270 EP 3276 DI 10.1021/nn9018174 PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 612HU UT WOS:000278888600042 PM 20415461 ER PT J AU Choi, CK Fowlkes, JD Retterer, ST Siuti, P Iyer, S Doktycz, MJ AF Choi, Chang Kyoung Fowlkes, Jason D. Retterer, Scott T. Siuti, Piro Iyer, Sukanya Doktycz, Mitchel J. TI Surface Charge- and Space-Dependent Transport of Proteins in Crowded Environments of Nanotailored Posts SO ACS NANO LA English DT Article DE diffusive transport; reaction-diffusion; post array; nanopost; fluorescence recovery after photobleaching (FRAP) ID LIVING CELLS; TRANSLATIONAL DIFFUSION; FLUORESCENCE RECOVERY; ANOMALOUS DIFFUSION; SELF-ORGANIZATION; SEPARATION; MEMBRANES; BINDING; CYTOPLASM; FLOW AB The reaction and diffusion of molecules across barriers and through crowded environments is integral to biological system function and to separation technologies. Ordered, microfabricated post arrays are a promising route to creating synthetic barriers with controlled chemical and physical characteristics. They can be used to create crowded environments, to mimic aspects of cellular membranes, and to serve as engineered replacements of polymer-based separation media. Here, the translational diffusion of fluorescein isothiocyante and various forms of green fluorescent protein (GFP), including "supercharged" variants, are examined in a silicon-based post array environment. The technique of fluorescence recovery after photobleaching (FRAP) is combined with analytical approximations and numerical simulations to assess the relative effects of reaction and diffusion on molecular transport, respectively. FRAP experiments were conducted for 64 different cases where the molecular species, the density of the posts, and the chemical surface charge of the posts were varied. In all cases, the dense packing of the posts hindered the diffusive transport of the fluorescent species. The supercharged GFPs strongly interacted with oppositely charged surfaces. With similar molecular and surface charges, transport is primarily limited by hindered diffusion. For conventional, enhanced GFP in a positively charged surface environment, transport was limited by the coupled action of hindered diffusion and surface interaction with the posts. Quantification of the size-, space-, time-, and charge-dependent translational diffusion in the post array environments can provide insight into natural processes and guide the design and development of selective membrane systems. C1 [Fowlkes, Jason D.; Retterer, Scott T.; Doktycz, Mitchel J.] Oak Ridge Natl Lab, Ctr Nanoscale Mat Sci, Oak Ridge, TN 37831 USA. [Choi, Chang Kyoung] Michigan Technol Univ, Houghton, MI 49931 USA. [Retterer, Scott T.; Siuti, Piro; Iyer, Sukanya; Doktycz, Mitchel J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Siuti, Piro; Iyer, Sukanya; Doktycz, Mitchel J.] Univ Tennessee, Grad Program Genome Sci & Technol, Knoxville, TN 37996 USA. RP Doktycz, MJ (reprint author), Oak Ridge Natl Lab, Ctr Nanoscale Mat Sci, Oak Ridge, TN 37831 USA. EM doktyczmj@ornl.gov RI Retterer, Scott/A-5256-2011; Doktycz, Mitchel/A-7499-2011 OI Retterer, Scott/0000-0001-8534-1979; Doktycz, Mitchel/0000-0003-4856-8343 FU NIH [EB000657]; Division of Scientific User Facilities, U.S. Department of Energy [DE-AC05-00OR22725] FX We thank D. R. Liu (HHMI, Harvard University) for the generous gift of supercharged GFP expression vectors. This research was supported by NIH Grant EB000657. A portion of this research (device fabrication) 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. This work was performed at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. DOE under Contract No. DE-AC05-00OR22725. NR 45 TC 11 Z9 11 U1 2 U2 18 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD JUN PY 2010 VL 4 IS 6 BP 3345 EP 3355 DI 10.1021/nn901831q PG 11 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 612HU UT WOS:000278888600051 PM 20515056 ER PT J AU Deymier-Black, AC Almer, JD Stock, SR Haeffner, DR Dunand, DC AF Deymier-Black, A. C. Almer, J. D. Stock, S. R. Haeffner, D. R. Dunand, D. C. TI Synchrotron X-ray diffraction study of load partitioning during elastic deformation of bovine dentin SO ACTA BIOMATERIALIA LA English DT Article DE Collagen; Hydroxyapatite; Mechanical properties; X-ray diffraction; Dentin ID YOUNGS MODULUS MEASUREMENTS; MECHANICAL-PROPERTIES; THIN-FILMS; SODIUM-HYPOCHLORITE; ULTRA-THIN; FRACTURE PROPERTIES; LASER-ACOUSTICS; HUMAN-ENAMEL; COLLAGEN; BONE AB The elastic properties of dentin, a biological composite consisting of stiff hydroxyapatite (HAP) nano-platelets within a compliant collagen matrix, are determined by the volume fraction of these two phases and the load transfer between them. We have measured the elastic strains in situ within the HAP phase of bovine dentine by high energy X-ray diffraction for a series of static compressive stresses at ambient temperature. The apparent HAP elastic modulus (ratio of applied stress to elastic HAP strain) was found to be 18 +/- 2 GPa. This value is significantly lower than the value of 44 GPa predicted by the lower bound load transfer Voigt model, using HAP and collagen volume fractions determined by thermo-gravimetric analysis. This discrepancy is explained by (i) a reduction in the intrinsic Young's modulus of the nano-size HAP platelets due to the high fraction of interfacial volume and (ii) an increase in local stresses due to stress concentration around the dentin tubules. (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. C1 [Deymier-Black, A. C.; Dunand, D. C.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Almer, J. D.; Haeffner, D. R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Stock, S. R.] Northwestern Univ, Feinberg Sch Med, Dept Mol Pharmacol & Biol Chem, Chicago, IL 60611 USA. RP Deymier-Black, AC (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. EM alixdeymier2010@u.northwestern.edu RI Dunand, David/B-7515-2009; OI Dunand, David/0000-0001-5476-7379 FU US Department of Energy, Office of Science [DE-AC02-06CH11357]; Department of Defense FX The authors thank Prof. Arthur Veis (Northwestern University) for providing the tooth used for the in situ deformation and Dr. Francesco De Carlo of the Advanced Photon Source (APS) for help in collecting the synchrotron microcomputed tomography data at station 2-BM of the APS. They also thank Dr. Marcus Young (Northwestern University, now National Renewable Energy Laboratory) for his help at the beamline and for advice on data analysis. This research was performed at station 1-ID of XOR-APS at the APS, which is supported by the US Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. Partial funding was provided to A.C.D. by a National Defense Science and Engineering Graduate Fellowship from the Department of Defense. NR 100 TC 33 Z9 33 U1 3 U2 22 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1742-7061 J9 ACTA BIOMATER JI Acta Biomater. PD JUN PY 2010 VL 6 IS 6 BP 2172 EP 2180 DI 10.1016/j.actbio.2009.11.017 PG 9 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 604AQ UT WOS:000278250100034 PM 19925891 ER PT J AU Bai, XA More, K Rouleau, CM Rabiei, A AF Bai, Xiao More, Karren Rouleau, Christopher M. Rabiei, Afsaneh TI Functionally graded hydroxyapatite coatings doped with antibacterial components SO ACTA BIOMATERIALIA LA English DT Article DE Ion beam processing; Hydroxyapatite coating; Adhesion strength; Antimicrobial ID CALCIUM-PHOSPHATE COATINGS; BEAM-ASSISTED DEPOSITION; MECHANICAL-PROPERTIES; HA COATINGS; SUBSTITUTED HYDROXYAPATITE; BONE-CEMENT; SILVER; MICROSTRUCTURE; PARTICLES; SUBSTRATE AB A series of functionally graded hydroxyapatite (FGHA) coatings incorporated with various percentages of silver were deposited on titanium substrates using ion beam-assisted deposition. The analysis of the coating's cross-section using transmission electron microscopy (TEM) and scanning transmission electron microscopy equipped with energy dispersive X-ray spectroscopy has shown a decreased crystallinity as well as a distribution of nanoscale (10-50 nm) silver particles from the coating/substrate interface to top surface. Both X-ray diffraction and fast Fourier transforms on high-resolution TEM images revealed the presence of hydroxyapatite within the coatings. The amount of Ag (wt.%) on the outer surface of the FGHA, as determined from X-ray photoelectron spectroscopy, ranged from 1.09 to 6.59, which was about half of the average Ag wt.% incorporated in the entire coating. Average adhesion strengths evaluated by pull-off tests were in the range of 83 +/- 6 to 88 +/- 3 MPa, which is comparable to 85 MPa for FGHA without silver. Further optical observations of failed areas illustrated that the dominant failure mechanism was epoxy failure, and FGHA coating delamination was not observed. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Bai, Xiao; Rabiei, Afsaneh] N Carolina State Univ, Raleigh, NC 27695 USA. [More, Karren] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Rouleau, Christopher M.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Rabiei, A (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA. EM arabiei@eos.ncsu.edu RI Liu, Yifei/L-7828-2014; Rouleau, Christopher/Q-2737-2015; More, Karren/A-8097-2016 OI Liu, Yifei/0000-0002-1087-9827; Rouleau, Christopher/0000-0002-5488-3537; More, Karren/0000-0001-5223-9097 FU National Science Foundation [0600596]; Scientific User Facilities Division, Office of Basic Energy Sciences, the U.S. Department of Energy [CNMS2005-070] FX The authors would like to acknowledge the financial support from the National Science Foundation (Grant No. 0600596) and access to the research facilities at the Center for Nanophase Materials Sciences (CNMS) and the Shared Research Equipment (SHaRE) User Facilities at Oak Ridge National Laboratory, both of which are supported by the Scientific User Facilities Division, Office of Basic Energy Sciences, the U.S. Department of Energy (Award No. CNMS2005-070). The authors would also like to acknowledge Mr. Stefan Sandukas from NCSU for his assistance with SEM-EDS, and Drs. Harry M. Meyer, Sang Hoon Shim, Adam J. Rondinone and Andrew Payzant from ORNL for their training and assistance with XPS, nanoindentation and X-ray diffraction analysis. NR 42 TC 75 Z9 77 U1 6 U2 26 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1742-7061 J9 ACTA BIOMATER JI Acta Biomater. PD JUN PY 2010 VL 6 IS 6 BP 2264 EP 2273 DI 10.1016/j.actbio.2009.12.002 PG 10 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 604AQ UT WOS:000278250100044 PM 19969112 ER PT J AU Bera, AK Atanasova, V Gamage, S Robinson, H Parsons, JF AF Bera, Asim K. Atanasova, Vesna Gamage, Swarna Robinson, Howard Parsons, James F. TI Structure of the D-alanylgriseoluteic acid biosynthetic protein EhpF, an atypical member of the ANL superfamily of adenylating enzymes SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID ERWINIA-HERBICOLA EH1087; PANTOEA-AGGLOMERANS; PHENAZINE BIOSYNTHESIS; ANTIBIOTIC PRODUCTION; CRYSTAL-STRUCTURE; PYOCYANIN; AMYLOVORA; PRODUCTS; SOFTWARE; COMPLEX AB The structure of EhpF, a 41 kDa protein that functions in the biosynthetic pathway leading to the broad-spectrum antimicrobial compound d-alanylgriseoluteic acid (AGA), is reported. A cluster of approximately 16 genes, including ehpF, located on a 200 kbp plasmid native to certain strains of Pantoea agglomerans encodes the proteins that are required for the conversion of chorismic acid to AGA. Phenazine-1,6-dicarboxylate has been identified as an intermediate in AGA biosynthesis and deletion of ehpF results in accumulation of this compound in vivo. The crystallographic data presented here reveal that EhpF is an atypical member of the acyl-CoA synthase or ANL superfamily of adenylating enzymes. These enzymes typically catalyze two-step reactions involving adenylation of a carboxylate substrate followed by transfer of the substrate from AMP to coenzyme A or another phosphopantetheine. EhpF is distinguished by the absence of the C-terminal domain that is characteristic of enzymes from this family and is involved in phosphopantetheine binding and in the second half of the canonical two-step reaction that is typically observed. Based on the structure of EhpF and a bioinformatic analysis, it is proposed that EhpF and EhpG convert phenazine-1,6-dicarboxylate to 6-formylphenazine-1-carboxylate via an adenylyl intermediate. C1 [Bera, Asim K.; Atanasova, Vesna; Parsons, James F.] Univ Maryland, Inst Biotechnol, Ctr Adv Res Biotechnol, Rockville, MD 20850 USA. [Gamage, Swarna] Univ Auckland, Auckland Canc Soc Res Ctr, Sch Med, Fac Med & Hlth Sci, Auckland 1, New Zealand. [Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. RP Parsons, JF (reprint author), Univ Maryland, Inst Biotechnol, Ctr Adv Res Biotechnol, 9600 Gudelsky Dr, Rockville, MD 20850 USA. EM parsonsj@umbi.umd.edu FU National Institute of Allergy and Infectious Diseases [AI067530] FX This work was supported in part by a grant from the National Institute of Allergy and Infectious Diseases (AI067530) to JFP. NR 40 TC 5 Z9 5 U1 1 U2 4 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD JUN PY 2010 VL 66 BP 664 EP 672 DI 10.1107/S0907444910008425 PN 6 PG 9 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 597YL UT WOS:000277798400003 PM 20516619 ER PT J AU Jakoncic, J Sondgeroth, B Carpino, N Nassar, N AF Jakoncic, Jean Sondgeroth, Benjamin Carpino, Nick Nassar, Nicolas TI The 1.35 angstrom resolution structure of the phosphatase domain of the suppressor of T-cell receptor signaling protein in complex with sulfate SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Article ID FUNCTIONAL-CHARACTERIZATION; REVEALS; STS-1 AB The suppressor of T-cell signaling (Sts) proteins are multidomain proteins that negatively regulate the signaling of membrane-bound receptors, including the T-cell receptor (TCR) and the epidermal growth-factor receptor (EGFR). They contain at their C-terminus a 2H-phosphatase homology (PGM) domain that is responsible for their protein tyrosine phosphatase activity. Here, the crystal structure of the phosphatase domain of Sts-1, Sts-1PGM, was determined at pH 4.6. The asymmetric unit contains two independent molecules and each active site is occupied by a sulfate ion. Each sulfate is located at the phosphate-binding site and makes similar interactions with the catalytic residues. The structure suggests an explanation for the lower Michaelis-Menten constants at acidic pH. C1 [Sondgeroth, Benjamin; Nassar, Nicolas] SUNY Stony Brook, Dept Physiol & Biophys, Stony Brook, NY 11794 USA. [Jakoncic, Jean] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Carpino, Nick] SUNY Stony Brook, Dept Mol Genet & Microbiol, Stony Brook, NY 11794 USA. RP Nassar, N (reprint author), SUNY Stony Brook, Dept Physiol & Biophys, Basic Sci Tower, Stony Brook, NY 11794 USA. EM nicolas.nassar@sunysb.edu FU NIH [CA-115611]; DOD [NF060060]; US Department of Energy [DE-AC02-98CH10886]; NIH/NIGMS [Y1 GM-0080-03] FX We thank Vivan Stojanoff for help during data collection on X6A. Research in NN's laboratory was supported in part by grants from the NIH (CA-115611) and DOD (NF060060). Research carried out at the X6A beamline, National Synchrotron Light Source, Brookhaven National Laboratory is supported by the US Department of Energy under contract No. DE-AC02-98CH10886. X6A is funded by NIH/NIGMS under agreement Y1 GM-0080-03. NR 19 TC 0 Z9 1 U1 0 U2 4 PU WILEY-BLACKWELL PUBLISHING, INC PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD JUN PY 2010 VL 66 BP 643 EP 647 DI 10.1107/S1744309110014259 PN 6 PG 5 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 602VB UT WOS:000278165900004 PM 20516590 ER PT J AU Leung, DW Borek, D Farahbakhsh, M Ramanan, P Nix, JC Wang, TJ Prins, KC Otwinowski, Z Honzatko, RB Helgeson, LA Basler, CF Amarasinghe, GK AF Leung, Daisy W. Borek, Dominika Farahbakhsh, Mina Ramanan, Parameshwaran Nix, Jay C. Wang, Tianjiao Prins, Kathleen C. Otwinowski, Zbyszek Honzatko, Richard B. Helgeson, Luke A. Basler, Christopher F. Amarasinghe, Gaya K. TI Crystallization and preliminary X-ray analysis of Ebola VP35 interferon inhibitory domain mutant proteins SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Article ID DOUBLE-STRANDED-RNA; VIRUS; ANTAGONISM; ENTROPY AB VP35 is one of seven structural proteins encoded by the Ebola viral genome and mediates viral replication, nucleocapsid formation and host immune suppression. The C-terminal interferon inhibitory domain (IID) of VP35 is critical for dsRNA binding and interferon inhibition. The wild-type VP35 IID structure revealed several conserved residues that are important for dsRNA binding and interferon antagonism. Here, the expression, purification and crystallization of recombinant Zaire Ebola VP35 IID mutants R312A, K319A/R322A and K339A in space groups P6(1)22, P2(1)2(1)2(1) and P2(1), respectively, are described. Diffraction data were collected using synchrotron sources at the Advanced Light Source and the Advanced Photon Source. C1 [Leung, Daisy W.; Farahbakhsh, Mina; Wang, Tianjiao; Honzatko, Richard B.; Helgeson, Luke A.; Amarasinghe, Gaya K.] Iowa State Univ, Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA. [Borek, Dominika; Otwinowski, Zbyszek] Univ Texas SW Med Ctr Dallas, Dept Biochem, Dallas, TX 75390 USA. [Farahbakhsh, Mina; Helgeson, Luke A.] Iowa State Univ, Biochem Undergraduate Program, Ames, IA 50011 USA. [Ramanan, Parameshwaran] Iowa State Univ, Biochem Grad Program, Ames, IA 50011 USA. [Nix, Jay C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Basler, Christopher F.] Mt Sinai Sch Med, Dept Microbiol, New York, NY 10029 USA. RP Amarasinghe, GK (reprint author), Iowa State Univ, Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA. EM amarasin@iastate.edu RI Otwinowski, Zbyszek/F-3665-2011; Wang, Tianjiao/B-6154-2013; Borek, Dominika/D-2943-2011; OI Borek, Dominika/0000-0002-4321-6253; Amarasinghe, Gaya/0000-0002-0418-9707 FU US DOE [DE-AC02-06CH11357]; NIH [1F32AI084324, R01GM053163, R01NS010546, R01AI059536, AI057158, R01AI081914]; MRCE Developmental Grant [U54AI057160-Virgin]; Roy J. Carver Charitable Trust [09-3271] FX We thank ISU Biotechnology Facilities and Dr J. Hoy for providing access to instrumentation. We thank L. Tantral, C. Brown and D. Peterson for laboratory assistance and Drs. S. Ginell, N. Duke, F. Rotella, M. Cuff and J. Lazarz at APS Sector 19. Use of Argonne National Laboratory Structural Biology Center beamlines at the Advanced Photon Source was supported by the US DOE under contract DE-AC02-06CH11357. This work was supported by NIH grants [1F32AI084324 to DWL, R01GM053163 to ZO, R01NS010546 to RBH, R01AI059536 and AI057158 (Northeast Biodefense Center-Lipkin) to CFB and R01AI081914 to GKA], an MRCE Developmental Grant [U54AI057160-Virgin(PI) to GKA] and the Roy J. Carver Charitable Trust (09-3271 to GKA). NR 19 TC 3 Z9 3 U1 1 U2 6 PU WILEY-BLACKWELL PUBLISHING, INC PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD JUN PY 2010 VL 66 BP 689 EP 692 DI 10.1107/S1744309110013266 PN 6 PG 4 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 602VB UT WOS:000278165900015 PM 20516601 ER PT J AU Habel, JE Bursey, EH Rho, BS Kim, CY Segelke, BW Rupp, B Park, MS Terwilliger, TC Hung, LW AF Habel, Jeff E. Bursey, Evan H. Rho, Beom-Seop Kim, Chang-Yub Segelke, Brent W. Rupp, Bernhard Park, Min S. Terwilliger, Thomas C. Hung, Li-Wei TI Structure of Rv1848 (UreA), the Mycobacterium tuberculosis urease gamma subunit SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Article ID SMALL-ANGLE SCATTERING; JACK BEAN UREASE; HELICOBACTER-PYLORI; KLEBSIELLA-AEROGENES; PROTEUS-MIRABILIS; MICROBIAL UREASES; NEGATIVE MUTANT; DATA QUALITY; SEQUENCE; PURIFICATION AB The crystal structure of the urease gamma subunit (UreA) from Mycobacterium tuberculosis, Rv1848, has been determined at 1.8 angstrom resolution. The asymmetric unit contains three copies of Rv1848 arranged into a homotrimer that is similar to the UreA trimer in the structure of urease from Klebsiella aerogenes. Small-angle X-ray scattering experiments indicate that the Rv1848 protein also forms trimers in solution. The observed homotrimer and the organization of urease genes within the M. tuberculosis genome suggest that M. tuberculosis urease has the (alpha beta gamma)(3) composition observed for other bacterial ureases. The gamma subunit may be of primary importance for the formation of the urease quaternary structure. C1 [Habel, Jeff E.; Bursey, Evan H.; Hung, Li-Wei] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Rho, Beom-Seop; Kim, Chang-Yub; Park, Min S.; Terwilliger, Thomas C.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. [Segelke, Brent W.; Rupp, Bernhard] Lawrence Livermore Natl Lab, Biol & Biotechnol Program, Livermore, CA 94551 USA. [Hung, Li-Wei] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA. RP Hung, LW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM lwhung@lanl.gov RI Terwilliger, Thomas/K-4109-2012; OI Terwilliger, Thomas/0000-0001-6384-0320; Kim, Chang-Yub/0000-0001-9353-5909; Hung, Li-Wei/0000-0001-6690-8458 FU National Institutes of Health, National Institute of General Medical Sciences (NIGMS); US Department of Energy (DOE) [DE-AC02-05CH11231]; Office of Science, Office of Basic Energy Sciences of the DOE [DE-AC02-05CH11231]; NIGMS [NIH U54 GM074946] FX The authors would like to thank the staff at beamlines 5.0.2 (BL5.0.2) and 12.3.1 (BL12.3.1) at the ALS for technical support. Beamline 5.0.2 is managed by the Berkeley Center for Structural Biology, supported in part by the National Institutes of Health, National Institute of General Medical Sciences (NIGMS). Beamline 12.3.1 is supported in part by the US Department of Energy (DOE) program Integrated Diffraction Analysis Technologies (IDAT) and the DOE program Molecular Assemblies Genes and Genomics Integrated Efficiently (MAGGIE) under Contract No. DE-AC02-05CH11231 with the DOE. The ALS is supported by the Director, Office of Science, Office of Basic Energy Sciences of the DOE under Contract No. DE-AC02-05CH11231. This work was supported by the NIGMS Protein Structure Initiative program (NIH U54 GM074946). NR 36 TC 6 Z9 6 U1 0 U2 3 PU WILEY-BLACKWELL PUBLISHING, INC PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD JUN PY 2010 VL 66 BP 781 EP 786 DI 10.1107/S1744309110019536 PN 7 PG 6 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 617DF UT WOS:000279260300006 PM 20606272 ER PT J AU Langer, JS Bouchbinder, E Lookman, T AF Langer, J. S. Bouchbinder, Eran Lookman, Turab TI Thermodynamic theory of dislocation-mediated plasticity SO ACTA MATERIALIA LA English DT Article DE Dislocation theory; Hardening; Thermodynamics ID DEFORMATION; FLOW; LIQUIDS; STRESS; SOLIDS AB We reformulate the theory of polycrystalline plasticity, in externally driven, nonequilibrium situations, by writing equations of motion for the flow of energy and entropy associated with dislocations. Within this general framework, and using a minimal model of thermally assisted depinning with essentially only one adjustable parameter, we find that our theory fits the strain-hardening data for Cu over a wide range of temperatures and six decades of strain rate. We predict the transition between stage II and stage III hardening, including the observation that this transition occurs at smaller strains for higher temperatures. We also explain why strain-rate hardening is very weak up to large rates; and, with just one additional number, we accurately predict the crossover to power-law rate hardening in the strong-shock regime. Our analysis differs in several important respects from conventional dislocation-mediated continuum theories. We provide some historical background and discuss our rationale for these differences. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Langer, J. S.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Bouchbinder, Eran] Weizmann Inst Sci, Dept Chem Phys, IL-76100 Rehovot, Israel. [Lookman, Turab] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. RP Langer, JS (reprint author), Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. EM langer@physics.ucsb.edu OI Lookman, Turab/0000-0001-8122-5671 NR 36 TC 21 Z9 22 U1 1 U2 19 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 J9 ACTA MATER JI Acta Mater. PD JUN PY 2010 VL 58 IS 10 BP 3718 EP 3732 DI 10.1016/j.actamat.2010.03.009 PG 15 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 601BG UT WOS:000278032400017 ER PT J AU Daymond, MR Holt, RA Cai, S Mosbrucker, P Vogel, SC AF Daymond, M. R. Holt, R. A. Cai, S. Mosbrucker, P. Vogel, S. C. TI Texture inheritance and variant selection through an hcp-bcc-hcp phase transformation SO ACTA MATERIALIA LA English DT Article DE Zirconium; Phase transformations; Internal stresses; Neutron diffraction; Texture ID EXTRUDED ZR-2.5NB TUBES; NEUTRON-DIFFRACTION; TITANIUM-ALLOYS; BETA-PHASE; IN-SITU; CRYSTALLOGRAPHIC TEXTURE; PRESSURE TUBES; ALPHA-PHASE; EVOLUTION; TEMPERATURE AB In situ phase transformation experiments have been carried out using neutron diffraction to monitor the texture evolution during the alpha -> beta -> alpha phase transformation in a common zirconium alloy. In contrast to recently reported results by other authors, there is clear evidence of a strong variant selection occurring during the alpha -> beta transformation and a weaker variant selection during the beta -> alpha transformation. Modeling of the texture change associated with the phase transformation has been successful in describing the variant selection occurring during the alpha -> beta transformation, and gives insights into the selection occurring during the beta -> alpha transformation. The results are relevant to processing of both zirconium and titanium. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Daymond, M. R.; Holt, R. A.; Cai, S.; Mosbrucker, P.] Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada. [Vogel, S. C.] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Daymond, MR (reprint author), Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada. EM daymond@me.queensu.ca RI Lujan Center, LANL/G-4896-2012; OI Mosbrucker, Paula/0000-0003-0262-7117; Vogel, Sven C./0000-0003-2049-0361; Daymond, Mark/0000-0001-6242-7489 FU NSERC; UNENE; Nu-Tech Precision metals under Queen's University; Department of Energy's Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX The authors would like to thank Prof. Rudy Wenk for his assistance in the prediction of transformation textures. This work was sponsored by NSERC, UNENE and Nu-Tech Precision metals under the Industrial Research Chair program in Nuclear Materials at Queen's University. We thank S.A. Aldridge of Nu-tech Precision Metals Inc. and J.M. Theaker of Atomic Energy of Canada Ltd. for providing the experimental materials. This work has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Department of Energy's Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE contract DE-AC52-06NA25396. NR 41 TC 27 Z9 27 U1 0 U2 28 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 J9 ACTA MATER JI Acta Mater. PD JUN PY 2010 VL 58 IS 11 BP 4053 EP 4066 DI 10.1016/j.actamat.2010.03.012 PG 14 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 608DN UT WOS:000278562800024 ER PT J AU Le, ONL Rodier, F Fontaine, F Coppe, JP Campisi, J DeGregori, J Laverdiere, C Kokta, V Haddad, E Beausejour, CM AF Le, Oanh N. L. Rodier, Francis Fontaine, Francois Coppe, Jean-Philippe Campisi, Judith DeGregori, James Laverdiere, Caroline Kokta, Victor Haddad, Elie Beausejour, Christian M. TI Ionizing radiation-induced long-term expression of senescence markers in mice is independent of p53 and immune status SO AGING CELL LA English DT Article DE cancer; cellular senescence; DNA damage; immune system; ionizing radiation; p16; p53 ID ONCOGENE-INDUCED SENESCENCE; HEMATOPOIETIC STEM-CELLS; DNA-DAMAGE RESPONSE; CELLULAR SENESCENCE; IN-VIVO; TUMOR SUPPRESSION; CHILDHOOD-CANCER; AGING PRIMATES; P16(INK4A); REPAIR AB P>Exposure to IR has been shown to induce the formation of senescence markers, a phenotype that coincides with lifelong delayed repair and regeneration of irradiated tissues. We hypothesized that IR-induced senescence markers could persist long-term in vivo, possibly contributing to the permanent reduction in tissue functionality. Here, we show that mouse tissues exposed to a sublethal dose of IR display persistent (up to 45 weeks, the maximum time analyzed) DNA damage foci and increased p16INK4a expression, two hallmarks of cellular senescence and aging. BrdU-labeling experiments revealed that IR-induced damaged cells are preferentially eliminated, at least partially, in a tissue-dependent manner. Unexpectedly, the accumulation of damaged cells was found to occur independent from the DNA damage response modulator p53, and from an intact immune system, as their levels were similar in wild-type and Rag2-/- gamma C-/- mice, the latter being deficient in T, B, and NK cells. Together, our results provide compelling evidence that exposure to IR induces long-term expression of senescence markers in vivo, an effect that may contribute to the reduced tissue functionality observed in cancer survivors. C1 [Beausejour, Christian M.] CHU St Justine, Dept Pharmacol, Ctr Rech, Montreal, PQ H3T 1C5, Canada. [Rodier, Francis; Coppe, Jean-Philippe] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Rodier, Francis; Campisi, Judith] Buck Inst Age Res, Novato, CA USA. [DeGregori, James] Univ Colorado Denver, Dept Biochem & Mol Genet, Sch Med, Aurora, CO USA. [Haddad, Elie] Univ Montreal, Dept Pediat, Montreal, PQ H3C 3J7, Canada. [Haddad, Elie] Univ Montreal, Dept Microbiol & Immunol, Montreal, PQ H3C 3J7, Canada. [Beausejour, Christian M.] Univ Montreal, Dept Pharmacol, Montreal, PQ H3C 3J7, Canada. RP Beausejour, CM (reprint author), CHU St Justine, Dept Pharmacol, Ctr Rech, 3175 Cote St Catherine, Montreal, PQ H3T 1C5, Canada. EM christian.beausejour@recherche-ste-justine.qc.ca OI Haddad, Elie/0000-0003-2446-6879 FU Canadian Institute of Health Research [IAO-79317]; NIH [CA109657, AG017242, CA12654, AG09909, AG0 25708]; Research Foundation RxD/CIHR; la Fondation des Gouverneurs de l'espoir FX This work was supported by grants from: The Canadian Institute of Health Research #IAO-79317 and la Fondation des Gouverneurs de l'espoir to C. M. B., NIH CA109657 to J.D., NIH AG017242, CA12654 and AG09909 to J.C., and NIH AG0 25708 to the Buck Institute. C. M. B. holds a Health Research Foundation Rx&D/CIHR young investigator award. NR 60 TC 42 Z9 43 U1 0 U2 10 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1474-9718 J9 AGING CELL JI Aging Cell PD JUN PY 2010 VL 9 IS 3 BP 398 EP 409 DI 10.1111/j.1474-9726.2010.00567.x PG 12 WC Cell Biology; Geriatrics & Gerontology SC Cell Biology; Geriatrics & Gerontology GA 597VH UT WOS:000277789800010 PM 20331441 ER PT J AU Bouris, A Guilamo-Ramos, V Jaccard, J McCoy, W Aranda, D Pickard, A Boyer, CB AF Bouris, Alida Guilamo-Ramos, Vincent Jaccard, James McCoy, Wanda Aranda, Diane Pickard, Angela Boyer, Cherrie B. TI The Feasibility of a Clinic-Based Parent Intervention to Prevent HIV, Sexually Transmitted Infections, and Unintended Pregnancies Among Latino and African American Adolescents SO AIDS PATIENT CARE AND STDS LA English DT Article ID RANDOMIZED CONTROLLED-TRIAL; RISK BEHAVIORS; CENTERED INTERVENTION; HISPANIC ADOLESCENTS; UNITED-STATES; PRIMARY-CARE; COMMUNICATION; PROGRAM; HEALTH; PHYSICIANS AB The purpose of the present study was to examine the feasibility of conducting a parent-based intervention in a pediatric health clinic to prevent HIV, sexually transmitted infections (STIs), and unintended pregnancies among urban African American and Latino youth. Eight focus groups were conducted with health care providers, adolescent patients and the mothers of adolescent patients (n = 41) from December 2007 to February 2008. All participants were recruited from a community-based pediatric health clinic in the Bronx, New York. Content analysis of focus group transcripts identified results in three primary areas: (1) the role of parents and providers in preventing HIV, STDs and unintended pregnancies among adolescents, (2) feasibility of the intervention in the clinic setting; and (3) optimal recruitment, retention and intervention delivery strategies. Study results suggest that a parent-based intervention delivered in a community-based pediatric health clinic setting is feasible. Focused recommendations for intervention recruitment, delivery, and retention are provided. C1 [Guilamo-Ramos, Vincent; Pickard, Angela] Columbia Univ, Sch Social Work, Ctr Dis Control & Prevent ORISE Fellow, New York, NY 10027 USA. [Bouris, Alida] Univ Chicago, Sch Social Serv Adm, Chicago, IL 60637 USA. [Jaccard, James] Florida Int Univ, Miami, FL 33199 USA. [McCoy, Wanda] Morris Hts Hlth Ctr, Bronx, NY USA. [McCoy, Wanda] Montefiore Med Ctr, Albert Einstein Coll Med, Davis Sch Biomed Educ, Bronx, NY 10467 USA. [Aranda, Diane] Morris Hts Hlth Ctr, Bronx, NY USA. [Boyer, Cherrie B.] Univ Calif San Francisco, Div Adolescent Med, San Francisco, CA 94143 USA. RP Guilamo-Ramos, V (reprint author), Columbia Univ, Sch Social Work, Ctr Dis Control & Prevent ORISE Fellow, 1255 Amsterdam Ave, New York, NY 10027 USA. EM rg650@columbia.edu FU NIDA NIH HHS [R25 DA028567]; NIMH NIH HHS [R34 MH078719, R34 MH078719-01A1] NR 46 TC 7 Z9 7 U1 1 U2 5 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1087-2914 J9 AIDS PATIENT CARE ST JI Aids Patient Care STDS PD JUN PY 2010 VL 24 IS 6 BP 381 EP 387 DI 10.1089/apc.2009.0308 PG 7 WC Public, Environmental & Occupational Health; Infectious Diseases SC Public, Environmental & Occupational Health; Infectious Diseases GA 614CN UT WOS:000279032800007 PM 20565322 ER PT J AU Dugan, PJ Barlow, C Agostinho, AA Baran, E Cada, GF Chen, DQ Cowx, IG Ferguson, JW Jutagate, T Mallen-Cooper, M Marmulla, G Nestler, J Petrere, M Welcomme, RL Winemiller, KO AF Dugan, Patrick J. Barlow, Chris Agostinho, Angelo A. Baran, Eric Cada, Glenn F. Chen, Daqing Cowx, Ian G. Ferguson, John W. Jutagate, Tuantong Mallen-Cooper, Martin Marmulla, Gerd Nestler, John Petrere, Miguel Welcomme, Robin L. Winemiller, Kirk O. TI Fish Migration, Dams, and Loss of Ecosystem Services in the Mekong Basin SO AMBIO LA English DT Editorial Material DE Mekong; Inland fisheries; Fish migration; Dams; Ecosystem services; River development ID SUSTAINABILITY; RIVER AB The past decade has seen increased international recognition of the importance of the services provided by natural ecosystems. It is unclear however whether such international awareness will lead to improved environmental management in many regions. We explore this issue by examining the specific case of fish migration and dams on the Mekong river. We determine that dams on the Mekong mainstem and major tributaries will have a major impact on the basin's fisheries and the people who depend upon them for food and income. We find no evidence that current moves towards dam construction will stop, and consider two scenarios for the future of the fisheries and other ecosystems of the basin. We conclude that major investment is required in innovative technology to reduce the loss of ecosystem services, and alternative livelihood strategies to cope with the losses that do occur. C1 [Dugan, Patrick J.] WorldFish Ctr, George Town 10670, Malaysia. [Barlow, Chris] Australian Ctr Int Agr Res, Canberra, ACT 2601, Australia. [Agostinho, Angelo A.] Fundacao Univ Estadual Maringa, BR-87020900 Maringa, Parana, Brazil. [Baran, Eric] WorldFish Ctr, Phnom Penh, Cambodia. [Cada, Glenn F.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Chen, Daqing] Yangtze River Fisheries Res Inst, Jingzhou City, Peoples R China. [Cowx, Ian G.] Hull Int Fisheries Inst, Kingston Upon Hull, N Humberside, England. [Ferguson, John W.] NW Fisheries Sci Ctr, Seattle, WA 98112 USA. [Jutagate, Tuantong] Ubon Ratchathani Univ, Ubon Ratchathani, Thailand. [Mallen-Cooper, Martin] Fishway Consulting Serv, St Ives Chase, NSW 2075, Australia. [Marmulla, Gerd] Food & Agr Org United Nat, Rome, Italy. [Nestler, John] USA Corps Engn, Concord, MA USA. [Petrere, Miguel] Univ Estadual Paulista, BR-13506900 Rio Claro, Brazil. [Winemiller, Kirk O.] Texas A&M Univ, College Stn, TX 77843 USA. RP Dugan, PJ (reprint author), WorldFish Ctr, George Town 10670, Malaysia. EM p.dugan@cgiar.org RI Agostinho, Angelo Antonio/D-5888-2013; Inau, Inct/J-9853-2013; OI Agostinho, Angelo Antonio/0000-0002-4707-9444; Winemiller, Kirk/0000-0003-0236-5129 NR 39 TC 73 Z9 76 U1 7 U2 83 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0044-7447 EI 1654-7209 J9 AMBIO JI Ambio PD JUN PY 2010 VL 39 IS 4 BP 344 EP 348 DI 10.1007/s13280-010-0036-1 PG 5 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 649GI UT WOS:000281755800010 PM 20799685 ER PT J AU Nischang, I Brueggemann, O Svec, F AF Nischang, Ivo Brueggemann, Oliver Svec, Frantisek TI Advances in the preparation of porous polymer monoliths in capillaries and microfluidic chips with focus on morphological aspects SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY LA English DT Article DE Confinement; Miniaturization; Morphology; Open tubular; Porous polymer monolith; Wall effect ID PERFORMANCE LIQUID-CHROMATOGRAPHY; SOLID-PHASE EXTRACTION; IN-SITU POLYMERIZATION; OPEN-TUBULAR COLUMNS; SURFACE MODIFICATION; PROTEOMIC ANALYSIS; MASS-SPECTROMETRY; HIGHLY EFFICIENT; SEPARATION; PROTEINS AB Porous polymer monoliths have emerged as unique materials for many applications, including liquid-chromatographic analyses at an unrivaled speed, solid-phase extraction, and enzyme immobilization in capillary and microfluidic chip format. This article reviews the state of the art in the preparation of monoliths in narrow-bore capillaries and microfluidic chips and their miniaturization under conditions of spatial confinement. New developments in their preparation mainly using free radical polymerization techniques with a focus on morphological aspects in view of homogeneous porous materials are described. The suitability of monoliths for analysis of both large and small molecules is also discussed. C1 [Nischang, Ivo; Brueggemann, Oliver] Johannes Kepler Univ Linz, Inst Polymer Chem, A-4060 Leonding, Austria. [Svec, Frantisek] EO Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Nischang, I (reprint author), Johannes Kepler Univ Linz, Inst Polymer Chem, Welser Str 42, A-4060 Leonding, Austria. EM ivo.nischang@jku.at RI Nischang, Ivo/B-8619-2013 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy [DE-AC02-05CH11231] FX This work is part of a user project of Johannes Kepler University Linz at the Molecular Foundry, Lawrence Berkeley National Laboratory. F.S. and his work performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, were supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy under contract no. DE-AC02-05CH11231. NR 39 TC 57 Z9 58 U1 5 U2 46 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1618-2642 EI 1618-2650 J9 ANAL BIOANAL CHEM JI Anal. Bioanal. Chem. PD JUN PY 2010 VL 397 IS 3 BP 953 EP 960 DI 10.1007/s00216-010-3550-x PG 8 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 595EJ UT WOS:000277593200010 PM 20213170 ER PT J AU Saini, G Jensen, DS Wiest, LA Vail, MA Dadson, A Lee, ML Shutthanandan, V Linford, MR AF Saini, Gaurav Jensen, David S. Wiest, Landon A. Vail, Michael A. Dadson, Andrew Lee, Milton L. Shutthanandan, V. Linford, Matthew R. TI Core-Shell Diamond as a Support for Solid-Phase Extraction and High-Performance Liquid Chromatography SO ANALYTICAL CHEMISTRY LA English DT Article ID POLYBUTADIENE-COATED ZIRCONIA; STATIONARY-PHASE; SINTERED NANODIAMONDS; HPLC; CHEMISTRY; PROTEINS; OXIDE; PARTICLES; FILMS AB We report the formation of core shell diamond particles for solid-phase extraction (SPE) and high-performance liquid chromatography (HPLC) made by layer-by-layer (LbL) deposition. Their synthesis begins with the amine functionalization of microdiamond by its immersion in an aqueous solution of a primary amine-containing polymer (polyallylamine (PAAm)). The amine-terminated microdiamond is then immersed in an aqueous suspension of nanodiamond, which leads to adsorption of the nanodiamond. Alternating (self-limiting) immersions in the solutions of the amine-containing polymer and the suspension of nanodiamond are continued until the desired number of nanodiamond layers is formed around the microdiamond. Finally, the core shell particles are cross-linked with 1,2,5,6-diepoxycyclooctane or reacted with 1,2-epoxyoctadecane. Layer-by-layer deposition of PAAm and nanodiamond is also studied on planar Si/SiO(2) surfaces, which were characterized by scanning electron microscopy (SEM), Rutherford backscattering spectrometry, (RBS), and nuclear reaction analysis (NRA). Core shell particles are characterized by diffuse reflectance infrared Fourier transform spectroscopy (DRIFT), environmental scanning electron microscopy (ESEM), and Brunauer-Emmett-Teller (BET) surface area and pore size measurements. Larger (ca. 50 mu m) core shell diamond particles have much higher surface areas and analyte loading capacities in SPE than nonporous solid diamond particles. Smaller (ca. 3 mu m), normal and reversed-phase, core shell diamond particles have been used for HPLC, with 36 300 plates/m for mesitylene in a separation of benzene and alkyl benzenes and 54 800 plates/m for diazinon in a similar separation of two pesticides on a C(18) adsorbent. C1 [Saini, Gaurav; Jensen, David S.; Wiest, Landon A.; Lee, Milton L.; Linford, Matthew R.] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. [Vail, Michael A.; Dadson, Andrew] US Synthet Corp, Orem, UT 84058 USA. [Shutthanandan, V.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Linford, MR (reprint author), Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA. FU U.S. Synthetic Corporation, Orem, UT; Department of Energy's Office of Biological and Environmental Research FX This work was supported by U.S. Synthetic Corporation, Orem, UT. Part of this research was performed at EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. NR 36 TC 33 Z9 33 U1 7 U2 44 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD JUN 1 PY 2010 VL 82 IS 11 BP 4448 EP 4456 DI 10.1021/ac1002068 PG 9 WC Chemistry, Analytical SC Chemistry GA 601MD UT WOS:000278062800023 PM 20446670 ER PT J AU Izquierdo, JA Sizova, MV Lynd, LR AF Izquierdo, Javier A. Sizova, Maria V. Lynd, Lee R. TI Diversity of Bacteria and Glycosyl Hydrolase Family 48 Genes in Cellulolytic Consortia Enriched from Thermophilic Biocompost SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID PROCESSIVE ENDOCELLULASE CELF; CLOSTRIDIUM-THERMOCELLUM; METHANOGENIC BIOREACTOR; MICROBIAL COMMUNITY; SEQUENCE ALIGNMENT; CRYSTAL-STRUCTURE; MAJOR COMPONENT; SP NOV.; CELLULOSOME; FERMENTATION AB The enrichment from nature of novel microbial communities with high cellulolytic activity is useful in the identification of novel organisms and novel functions that enhance the fundamental understanding of microbial cellulose degradation. In this work we identify predominant organisms in three cellulolytic enrichment cultures with thermophilic compost as an inoculum. Community structure based on 16S rRNA gene clone libraries featured extensive representation of clostridia from cluster III, with minor representation of clostridial clusters I and XIV and a novel Lutispora species cluster. Our studies reveal different levels of 16S rRNA gene diversity, ranging from 3 to 18 operational taxonomic units (OTUs), as well as variability in community membership across the three enrichment cultures. By comparison, glycosyl hydrolase family 48 (GHF48) diversity analyses revealed a narrower breadth of novel clostridial genes associated with cultured and uncultured cellulose degraders. The novel GHF48 genes identified in this study were related to the novel clostridia Clostridium straminisolvens and Clostridium clariflavum, with one cluster sharing as little as 73% sequence similarity with the closest known relative. In all, 14 new GHF48 gene sequences were added to the known diversity of 35 genes from cultured species. C1 [Izquierdo, Javier A.; Sizova, Maria V.; Lynd, Lee R.] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA. [Izquierdo, Javier A.; Sizova, Maria V.; Lynd, Lee R.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. RP Lynd, LR (reprint author), Dartmouth Coll, Thayer Sch Engn, 8000 Cummings Hall, Hanover, NH 03755 USA. EM lee.lynd@dartmouth.edu RI Lynd, Lee/N-1260-2013; OI Lynd, Lee/0000-0002-5642-668X; Izquierdo, Javier/0000-0002-5143-3450 FU Office of Biological and Environmental Research in the DOE Office of Science FX This research was supported by a grant from the BioEnergy Science Center (BESC), Oak Ridge National Laboratory, a U.S. Department of Energy (DOE) Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science. NR 34 TC 34 Z9 37 U1 1 U2 19 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JUN PY 2010 VL 76 IS 11 BP 3545 EP 3553 DI 10.1128/AEM.02689-09 PG 9 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 598WW UT WOS:000277871400017 PM 20382819 ER PT J AU Wymelenberg, AV Gaskell, J Mozuch, M Sabat, G Ralph, J Skyba, O Mansfield, SD Blanchette, RA Martinez, D Grigoriev, I Kersten, PJ Cullen, D AF Wymelenberg, Amber Vanden Gaskell, Jill Mozuch, Michael Sabat, Grzegorz Ralph, John Skyba, Oleksandr Mansfield, Shawn D. Blanchette, Robert A. Martinez, Diego Grigoriev, Igor Kersten, Philip J. Cullen, Dan TI Comparative Transcriptome and Secretome Analysis of Wood Decay Fungi Postia placenta and Phanerochaete chrysosporium SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID BROWN-ROT BASIDIOMYCETE; MASS-SPECTROMETRY; GLOEOPHYLLUM-TRABEUM; GENE-EXPRESSION; CELLOBIOSE DEHYDROGENASE; EXTRACELLULAR PROTEINS; GLUCURONOYL ESTERASES; GLYOXAL OXIDASE; CELLULOSE; LIGNIN AB Cellulose degradation by brown rot fungi, such as Postia placenta, is poorly understood relative to the phylogenetically related white rot basidiomycete, Phanerochaete chrysosporium. To elucidate the number, structure, and regulation of genes involved in lignocellulosic cell wall attack, secretome and transcriptome analyses were performed on both wood decay fungi cultured for 5 days in media containing ball-milled aspen or glucose as the sole carbon source. Using liquid chromatography-tandem mass spectrometry (LC-MS/MS), a total of 67 and 79 proteins were identified in the extracellular fluids of P. placenta and P. chrysosporium cultures, respectively. Viewed together with transcript profiles, P. chrysosporium employs an array of extracellular glycosyl hydrolases to simultaneously attack cellulose and hemicelluloses. In contrast, under these same conditions, P. placenta secretes an array of hemicellulases but few potential cellulases. The two species display distinct expression patterns for oxidoreductase-encoding genes. In P. placenta, these patterns are consistent with an extracellular Fenton system and include the upregulation of genes involved in iron acquisition, in the synthesis of low-molecular-weight quinones, and possibly in redox cycling reactions. C1 [Gaskell, Jill; Mozuch, Michael; Kersten, Philip J.; Cullen, Dan] USDA Forest Serv, Forest Prod Lab, Madison, WI 53726 USA. [Wymelenberg, Amber Vanden] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA. [Sabat, Grzegorz] Univ Wisconsin, Genet & Biotechnol Ctr, Madison, WI 53706 USA. [Ralph, John] Univ Wisconsin, Dept Biochem, Madison, WI 53726 USA. [Ralph, John] Univ Wisconsin, Dept Energy, Lakes Bioenergy Res Ctr, Madison, WI 53726 USA. [Skyba, Oleksandr; Mansfield, Shawn D.] Univ British Columbia, Dept Wood Sci, Vancouver, BC V6T 1Z4, Canada. [Blanchette, Robert A.] Univ Minnesota, Dept Plant Pathol, St Paul, MN 55108 USA. [Martinez, Diego] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. [Grigoriev, Igor] Joint Genome Inst, Dept Energy, Walnut Creek, CA 94598 USA. RP Cullen, D (reprint author), USDA Forest Serv, Forest Prod Lab, 1 Gifford Pinchot Dr, Madison, WI 53726 USA. EM dcullen@facstaff.wisc.edu FU USDA Cooperative State Research, Education and Extension Service [2007-35504-18257]; Office of Science U.S. Department of Energy [DE-AC02-05CH11231]; DOE Great Lakes Bioenergy Research Center [DE-FC02- 07ER64494] FX This work was supported by the National Research Initiative of the USDA Cooperative State Research, Education and Extension Service, grant number 2007-35504-18257 to the Forest Products Laboratory, by Office of Science U.S. Department of Energy contract DE-AC02-05CH11231 to the Joint Genome Institute, and by the DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER DE-FC02- 07ER64494). NR 60 TC 36 Z9 38 U1 2 U2 49 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JUN PY 2010 VL 76 IS 11 BP 3599 EP 3610 DI 10.1128/AEM.00058-10 PG 12 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 598WW UT WOS:000277871400023 ER PT J AU Vanzin, G Yu, JP Smolinski, S Tek, V Pennington, G Maness, PC AF Vanzin, Gary Yu, Jianping Smolinski, Sharon Tek, Vekalet Pennington, Grant Maness, Pin-Ching TI Characterization of Genes Responsible for the CO-Linked Hydrogen Production Pathway in Rubrivivax gelatinosus SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID CARBON-MONOXIDE DEHYDROGENASE; OXIDOREDUCTASE COMPLEX-I; RHODOSPIRILLUM-RUBRUM; ESCHERICHIA-COLI; METHANOSARCINA-BARKERI; CARBOXYDOTHERMUS HYDROGENOFORMANS; PHYSIOLOGICAL CHARACTERIZATION; CATALYTIC-PROPERTIES; DESULFOVIBRIO-GIGAS; NIFE HYDROGENASE AB Upon exposure to carbon monoxide, the purple nonsulfur photosynthetic bacterium Rubrivivax gelatinosus produces hydrogen concomitantly with the oxidation of CO according to the equation CO + H(2)O <-> CO(2) + H(2). Yet little is known about the genetic elements encoding this reaction in this organism. In the present study, we use transposon mutagenesis and functional complementation to uncover three clustered genes, cooL, cooX, and cooH, in Rubrivivax gelatinosus putatively encoding part of a membrane-bound, multisubunit NiFe-hydrogenase. We present the complete amino acid sequences for the large catalytic subunit and its electron-relaying small subunit, encoded by cooH and cooL, respectively. Sequence alignment reveals a conserved region in the large subunit coordinating a binuclear [NiFe] center and a conserved region in the small subunit coordinating a [4Fe-4S] cluster. Protein purification experiments show that a protein fraction of 58 kDa molecular mass could function in H(2) evolution mediated by reduced methyl viologen. Western blotting experiments show that the two hydrogenase subunits are detectable and accumulate only when cells are exposed to CO. The cooX gene encodes a putative Fe-S protein mediating electron transfer to the hydrogenase small subunit. We conclude that these three Rubrivivax proteins encompass part of a membrane-bound, multisubunit NiFe-hydrogenase belonging to the energy-converting hydrogenase (Ech) type, which has been found among diverse microbes with a common feature in coupling H(2) production with proton pumping for energy generation. C1 [Vanzin, Gary; Yu, Jianping; Smolinski, Sharon; Tek, Vekalet; Pennington, Grant; Maness, Pin-Ching] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Maness, PC (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM pinching.maness@nrel.gov FU U.S. Department of Energy Fuel Cell Technology Program FX This work was supported by the U.S. Department of Energy Fuel Cell Technology Program. NR 42 TC 7 Z9 7 U1 1 U2 4 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JUN PY 2010 VL 76 IS 11 BP 3715 EP 3722 DI 10.1128/AEM.02753-09 PG 8 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 598WW UT WOS:000277871400035 PM 20400563 ER PT J AU Pei, AY Oberdorf, WE Nossa, CW Agarwal, A Chokshi, P Gerz, EA Jin, ZD Lee, P Yang, LY Poles, M Brown, SM Sotero, S DeSantis, T Brodie, E Nelson, K Pei, ZH AF Pei, Anna Y. Oberdorf, William E. Nossa, Carlos W. Agarwal, Ankush Chokshi, Pooja Gerz, Erika A. Jin, Zhida Lee, Peng Yang, Liying Poles, Michael Brown, Stuart M. Sotero, Steven DeSantis, Todd Brodie, Eoin Nelson, Karen Pei, Zhiheng TI Diversity of 16S rRNA Genes within Individual Prokaryotic Genomes SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID ESCHERICHIA-COLI O157-H7; SECONDARY STRUCTURE; SEQUENCE HETEROGENEITY; HALOARCULA-MARISMORTUI; DISTINCT TYPES; BACTERIAL; OPERONS; VISUALIZATION; PREDICTION; RECOMBINATION AB Analysis of intragenomic variation of 16S rRNA genes is a unique approach to examining the concept of ribosomal constraints on rRNA genes; the degree of variation is an important parameter to consider for estimation of the diversity of a complex microbiome in the recently initiated Human Microbiome Project (http://nihroadmap.nih.gov/hmp). The current GenBank database has a collection of 883 prokaryotic genomes representing 568 unique species, of which 425 species contained 2 to 15 copies of 16S rRNA genes per genome (2.22 +/- 0.81). Sequence diversity among the 16S rRNA genes in a genome was found in 235 species (from 0.06% to 20.38%; 0.55% +/- 1.46%). Compared with the 16S rRNA-based threshold for operational definition of species (1 to 1.3% diversity), the diversity was borderline (between 1% and 1.3%) in 10 species and >1.3% in 14 species. The diversified 16S rRNA genes in Haloarcula marismortui (diversity, 5.63%) and Thermoanaerobacter tengcongensis (6.70%) were highly conserved at the 2 structure level, while the diversified gene in B. afzelii (20.38%) appears to be a pseudogene. The diversified genes in the remaining 21 species were also conserved, except for a truncated 16S rRNA gene in "Candidatus Protochlamydia amoebophila." Thus, this survey of intragenomic diversity of 16S rRNA genes provides strong evidence supporting the theory of ribosomal constraint. Taxonomic classification using the 16S rRNA-based operational threshold could misclassify a number of species into more than one species, leading to an overestimation of the diversity of a complex microbiome. This phenomenon is especially seen in 7 bacterial species associated with the human microbiome or diseases. C1 [Oberdorf, William E.; Nossa, Carlos W.; Agarwal, Ankush; Gerz, Erika A.; Jin, Zhida; Poles, Michael; Pei, Zhiheng] NYU, Sch Med, Dept Med, New York, NY 10016 USA. [Pei, Anna Y.] NYU, Coll Arts & Sci, New York, NY 10012 USA. [Lee, Peng; Yang, Liying; Pei, Zhiheng] NYU, Sch Med, Dept Pathol, New York, NY 10016 USA. [Brown, Stuart M.; Sotero, Steven] NYU, Sch Med, Ctr Hlth Informat & Bioinformat, New York, NY 10016 USA. [Chokshi, Pooja] Tufts Univ, Coll Arts & Sci, Medford, MA 02155 USA. [Pei, Zhiheng] Dept Vet Affairs New York Harbor Healthcare Syst, New York, NY 10010 USA. [DeSantis, Todd] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, Berkeley, CA 94720 USA. [Nelson, Karen] J Craig Venter Inst, Rockville, MD 20850 USA. RP Pei, ZH (reprint author), NYU, Sch Med, Dept Med, New York, NY 10016 USA. EM zhiheng.pei@med.nyu.edu RI Brodie, Eoin/A-7853-2008; OI Brodie, Eoin/0000-0002-8453-8435; Poles, Michael/0000-0002-7993-6156; Yang, Liying/0000-0003-1442-4915; Pei, Zhiheng/0000-0001-8570-6747 FU NIH [UH2CA140233]; National Institute of Allergy and Infectious Diseases [R01AI063477]; University of California [DE-AC02-05CH11231]; National Cancer Institute FX This study was supported in part by grant UH2CA140233 from the Human Microbiome Project of the NIH Roadmap Initiative and National Cancer Institute and by grant R01AI063477 from the National Institute of Allergy and Infectious Diseases. Part of this work was carried out under the auspices of the University of California, at Lawrence Berkeley National Laboratory under contract no. DE-AC02-05CH11231. NR 56 TC 95 Z9 102 U1 2 U2 41 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JUN PY 2010 VL 76 IS 12 BP 3886 EP 3897 DI 10.1128/AEM.02953-09 PG 12 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 606ID UT WOS:000278415300014 PM 20418441 ER PT J AU Delaire, O AF Delaire, O. TI Studies of high-temperature electron-phonon interactions with inelastic neutron scattering and first-principles computations SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; NONADIABATIC CONTRIBUTIONS; BASIS-SET; NA; PB; AL AB Several recent studies of phonons combining inelastic neutron scattering and first-principles calculations are summarized. Inelastic neutron scattering was used to measure the phonon densities of states of the A15 compounds V(3)Si, V(3)Ge, and V(3)Co at temperatures from 10 K to 1273 K. It was found that phonons in V(3)Si and V(3)Ge, which are superconducting at low temperatures, exhibit an anomalous stiffening with increasing temperature, whereas phonons in V(3)Co have a normal softening behavior. Additional measurements of the phonon DOS of BCC V alloys were performed, and it was found that a stiffening anomaly present in pure V is suppressed upon introduction of extra d-electrons by alloying. First-principles calculations of the electronic and phonon densities of states show that in both these systems, the anomalous phonon stiffening originates with an adiabatic electron-phonon coupling mechanism. The anomaly is caused by the thermally-induced broadening of sharp peaks in the electronic density of states, which tends to decrease the electronic density at the Fermi level. These results illustrate how the combined use of first-principles calculations and inelastic neutron scattering provides powerful insights into couplings of excitations in condensed-matter. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Delaire, O (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM delaireoa@ornl.gov FU US DOE [W-7405-ENG-36]; NSF [DMR-0520547, SCI-0504074, ACI-0352164, OCI-0503697]; NCSA [DMR060011N, DMR090019] FX We thank M. Lucas, M. Kresch, J.Y.Y. Lin, J. Munoz, and B. Fultz for help in collecting experimental data, and for stimulating discussions. This work has benefited from the use of LANSCE at the Los Alamos National Laboratory, funded by the US DOE under Contract W-7405-ENG-36. This work benefited from DANSE software developed under NSF award DMR-0520547. We thank the Neutron Science TeraGrid Gateway, funded by NSF awards SCI-0504074, ACI-0352164, and OCI-0503697. This work was supported by the National Science Foundation through TeraGrid resources provided by NCSA under grants DMR060011N and DMR090019. NR 22 TC 1 Z9 1 U1 3 U2 14 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 523 EP 529 DI 10.1007/s00339-010-5618-z PG 7 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600002 ER PT J AU Garlea, VO Chakoumakos, BC Moore, SA Taylor, GB Chae, T Maples, RG Riedel, RA Lynn, GW Selby, DL AF Garlea, V. O. Chakoumakos, B. C. Moore, S. A. Taylor, G. B. Chae, T. Maples, R. G. Riedel, R. A. Lynn, G. W. Selby, D. L. TI The high-resolution powder diffractometer at the high flux isotope reactor SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID DIFFRACTION; ASYMMETRY AB Neutron powder diffraction is increasingly recognized as one of the most powerful techniques for studying the structural and magnetic properties of advanced materials. Despite the growing demand to study an ever-increasing array of interesting materials, there is only a handful of neutron diffractometers available to serve the US neutron scattering community. This article describes the new high-resolution powder diffractometer that has recently been installed at the High Flux Isotope Reactor in Oak Ridge. The instrument is designed to provide an optimum balance between high neutron flux and high resolution. Due to its versatility the diffractometer can be employed for a large variety of experiments, but it is particularly adapted for refinements of structures with large interplanar spacings as well as of complex magnetic structures. In addition to traditional crystal and magnetic structural refinements, studies of phase transitions, thermal expansion, texture analysis, and ab initio structure solution from powder data can be undertaken. C1 [Garlea, V. O.; Chakoumakos, B. C.; Moore, S. A.; Taylor, G. B.; Chae, T.; Maples, R. G.; Riedel, R. A.; Lynn, G. W.; Selby, D. L.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA. RP Garlea, VO (reprint author), Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA. EM garleao@ornl.gov RI Garlea, Vasile/A-4994-2016; Chakoumakos, Bryan/A-5601-2016 OI Garlea, Vasile/0000-0002-5322-7271; Chakoumakos, Bryan/0000-0002-7870-6543 FU Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy; US DOE [DE-AC05-00OR22725] FX The installation of HB-2A neutron powder diffractometer was supported by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. US DOE. ORNL is operated by UT-Battelle, LLC for the US DOE under Contract No. DE-AC05-00OR22725. The authors express their appreciation to C. Burger, K. M. Shaw, and J.S. Hicks for their great support during instrument installation and commissioning. NR 6 TC 37 Z9 37 U1 1 U2 8 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 531 EP 535 DI 10.1007/s00339-010-5603-6 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600003 ER PT J AU Ma, D Stoica, AD Wang, XL Lu, ZP Proffen, T AF Ma, D. Stoica, A. D. Wang, X. -L. Lu, Z. P. Proffen, T. TI In-situ neutron scattering study of crystallization in a Zr-based bulk metallic glass SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID ACTIVATION-ENERGIES; ALLOYS; TRANSFORMATION; NUCLEATION AB Crystallization of a Zr-based bulk metallic glass (Zr(50.4)Cu(40.6)Al(9)) upon isothermal annealing has been investigated using in-situ neutron diffraction and the pair distribution function (PDF) method. By extracting the contribution of the crystalline phase from the total scattering, we are able to obtain the real-time structure factor and pair distribution function for the crystalline phase as well as its volume fraction. Our analysis shows that the crystallization follows the Johnson-Mehl-Avrami law with a time exponent of 4.0 +/- 0.2, indicating a three-dimensional nucleation and growth process. The analysis method established in the present study paves a new way for probing the kinetics of phase transformation for a broad range of non-crystalline materials including liquids and glasses. C1 [Ma, D.; Stoica, A. D.; Wang, X. -L.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Lu, Z. P.] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China. [Proffen, T.] Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, Los Alamos, NM 87545 USA. RP Ma, D (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM dongma@ornl.gov RI Ma, Dong/G-5198-2011; Wang, Xun-Li/C-9636-2010; Lujan Center, LANL/G-4896-2012; Lu, Zhao-Ping/A-2718-2009; Stoica, Alexandru/K-3614-2013; Proffen, Thomas/B-3585-2009 OI Ma, Dong/0000-0003-3154-2454; Wang, Xun-Li/0000-0003-4060-8777; Stoica, Alexandru/0000-0001-5118-0134; Proffen, Thomas/0000-0002-1408-6031 FU Oak Ridge National Laboratory (ORNL); US Department of Energy [DE-AC05-00OR22725]; National Natural Science Foundation of China [50725104]; 973 program [2007CB613903]; DOE Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396]; NSF [DMR 00-76488] FX D. M. thanks Drs. H. Bei and A. Huq for helpful discussions. This research was supported in part by the Laboratory Directed Research and Development program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC for the US Department of Energy under Contract No. DE-AC05-00OR22725. Z.P.L. acknowledges the financial support from National Natural Science Foundation of China (Grant No. 50725104) and the 973 program (Contract No. 2007CB613903). This work benefited from the use of NPDF at the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The upgrade of NPDF was funded by NSF through Grant No. DMR 00-76488. NR 18 TC 2 Z9 2 U1 5 U2 33 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 537 EP 542 DI 10.1007/s00339-010-5608-1 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600004 ER PT J AU Shapiro, SM AF Shapiro, S. M. TI Lattice dynamics and structural phase transitions SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID FIELD-INDUCED STRAIN; SHAPE-MEMORY ALLOY; PHONON ANOMALIES; NI2MNGA AB Results of lattice dynamics, or atomic motions in a solid, explain many of the thermodynamic properties of solids. Inelastic neutron scattering conveniently explores the atomic motions, quantized as phonons. Of particular interest are materials that undergo structural phase transitions. The soft mode theory has been successful in relating anomalous phonon behavior to structural changes in solids. One such example is the ferromagnetic shape memory alloy, Ni(2)MnGa, which undergoes a sequence of phase transitions leading to a magnetic, incommensurate modulated, tetragonal phase as the ground state. The experiments, coupled with first principles calculations, provide evidence that strong electron-phonon coupling is the driving mechanism of the phase transformation. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Shapiro, SM (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM shapiro@bnl.gov FU Office of Science, U.S. Department of Energy [DE-AC02-98CH10886] FX The author is grateful for the many collaborators during the course of these studies: P. Vorderwisch, K. Hradil, A. Zheludev, L. Tanner, G. Shirane and J.D. Axe. The work at Brookhaven is supported by the Office of Science, U.S. Department of Energy under Contract No. DE-AC02-98CH10886. NR 19 TC 1 Z9 1 U1 2 U2 18 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 543 EP 548 DI 10.1007/s00339-010-5604-5 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600005 ER PT J AU Pramanick, A Prewitt, AD Cottrell, MA Lee, W Studer, AJ An, K Hubbard, CR Jones, JL AF Pramanick, Abhijit Prewitt, Anderson D. Cottrell, Michelle A. Lee, Wayne Studer, Andrew J. An, Ke Hubbard, Camden R. Jones, Jacob L. TI In situ neutron diffraction studies of a commercial, soft lead zirconate titanate ceramic: response to electric fields and mechanical stress SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID SYNCHROTRON X-RAY; FERROELECTRIC CERAMICS; PIEZOELECTRIC CERAMICS; SINGLE-CRYSTALS; TEXTURE; STRAIN; BEHAVIOR; PZT AB Structural changes in commercial lead zirconate titanate (PZT) ceramics (EC-65) under the application of electric fields and mechanical stress were measured using neutron diffraction instruments at the Australian Nuclear Science and Technology Organisation (ANSTO) and the Oak Ridge National Laboratory (ORNL). The structural changes during electric-field application were measured on the WOMBAT beamline at ANSTO and include non-180A degrees domain switching, lattice strains and field-induced phase transformations. Using time-resolved data acquisition capabilities, lattice strains were measured under cyclic electric fields at times as short as 30 mu s. Structural changes including the (002) and (200) lattice strains and non-180A degrees domain switching were measured during uniaxial mechanical compression on the NRSF2 instrument at ORNL. Contraction of the crystallographic polarization axis, (002), and reorientation of non-180A degrees domains occur at lowest stresses, followed by (200) elastic strains at higher stresses. C1 [Pramanick, Abhijit; Prewitt, Anderson D.; Cottrell, Michelle A.; Jones, Jacob L.] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. [Lee, Wayne] ITT Corp, Acoust Sensors, Salt Lake City, UT 84115 USA. [Studer, Andrew J.] Australian Nucl Sci & Technol Org, Bragg Inst, Lucas Heights, NSW 2234, Australia. [An, Ke] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. [Hubbard, Camden R.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN USA. RP Jones, JL (reprint author), Univ Florida, Dept Mat Sci & Engn, 100 Rhines Hall, Gainesville, FL 32611 USA. EM jjones@mse.ufl.edu RI Jones, Jacob/A-8361-2008; An, Ke/G-5226-2011; Prewitt, Anderson/D-1258-2011; Pramanick, Abhijit/D-9578-2011 OI An, Ke/0000-0002-6093-429X; Pramanick, Abhijit/0000-0003-0687-4967 FU National Science Foundation (NSF) [DMR-0746902, DMR-0231320]; Oak Ridge Associated Universities (ORAU); U. S. Department of Energy [DE-AC05-00OR22725]; GEM Consortium; Sloan Foundation FX The authors gratefully acknowledge the support of the National Science Foundation (NSF) through Award DMR-0746902 and technical support and fruitful discussions with Vanessa Peterson (ANSTO) and Joshua E. Schmidlin (ORNL). Travel funding to access the international neutron diffraction facilities at ANSTO was provided by the University of Tennessee's International Materials Institute (IMI) ANSWER program, supported by NSF DMR-0231320. The experiments at ORNL were supported by an Oak Ridge Associated Universities (ORAU) Powe Junior Faculty Enhancement Award and the Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technologies Program, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U. S. Department of Energy under contract number DE-AC05-00OR22725. Anderson D. Prewitt acknowledges financial support from the GEM Consortium and the Sloan Foundation. NR 32 TC 18 Z9 18 U1 2 U2 27 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 JUN PY 2010 VL 99 IS 3 SI SI BP 557 EP 564 DI 10.1007/s00339-010-5605-4 PG 8 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600007 ER PT J AU Bunn, JR Penumadu, D Hubbard, CR AF Bunn, J. R. Penumadu, D. Hubbard, C. R. TI Residual strain evolution in steel samples: tension versus torsion SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID NEUTRON-DIFFRACTION AB Torsion provides a unique opportunity to probe mechanical behavior of materials subjected to pure state of shear stress. In this research, identical steel alloy (12L14) hollow cylinder samples are subjected to predetermined amounts of plastic axial and shear strain such that their octahedral shear strain (an invariant) are identical for comparison. Measurements were made at the residual stress measuring facility at the High Flux Isotope Reactor in Oak Ridge (NRSF2), using a small gauge area in the direction of strain gradients (0.5 mmx0.5 mm) through the hollow cylinder wall thickness. These orthogonal strains are obtained for BCC Fe for three hkl's. Three normal strains in the hoop, radial, and axial directions are obtained as a function of centroid position of the gauge volume through the 2 mm wall thickness. Significant differences in measured residual strains are noted between the torsion and the tension samples. The largest differences are found for the Fe (200) planes while the smallest differences are observed for the Fe (211) planes. This research demonstrates the need for a systematic study of residual strain as a function of applied stress path moving beyond tensile testing for solving real world problems. C1 [Bunn, J. R.; Penumadu, D.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. [Hubbard, C. R.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Bunn, JR (reprint author), Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. EM jbunn3@utk.edu RI Bunn, Jeffrey/J-4286-2014 OI Bunn, Jeffrey/0000-0001-7738-0011 FU Assistant Secretary for Energy Efficiency and Renewable Energy; Vehicle Technologies Program; High Temperature Materials Laboratory User Program; Oak Ridge National Laboratory; U.S. Department of Energy [DE-AC05-00OR22725]; Scientific User Facilities Division, Office of Basic Energy Sciences; U.S. Department of Energy FX This research is a continuation of research began by former student of second author, Dr. Xin Lou, for fulfillment of his doctoral research at the University of Tennessee, Knoxville. Data reported in Fig. 2 were obtained by Xin. The samples were fabricated by Mr. Kenneth Thomas, and his help is appreciated.; Research sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technologies Program, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract number DE-AC05-00OR22725.; This Research at Oak Ridge National Laboratory's High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, and U.S. Department of Energy. NR 7 TC 2 Z9 2 U1 0 U2 6 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 571 EP 578 DI 10.1007/s00339-010-5616-1 PG 8 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600009 ER PT J AU An, K Clausen, B Stoica, AD Armstrong, BL Skorpenske, HD Wang, XL AF An, Ke Clausen, Bjorn Stoica, Alexandru D. Armstrong, Beth L. Skorpenske, Harley D. Wang, Xun-Li TI In-situ neutron diffraction study of phase stress evolutions in a Ni-based porous anode solid oxide fuel cells under uniaxial load SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article DE Solid oxide fuel cell; Anode; Mechanical deformation; Neutron diffraction; Phase stress; Porous composite ID YTTRIA-STABILIZED ZIRCONIA; ELASTIC-CONSTANTS; MECHANICAL-PROPERTIES; COMPOSITE CATHODES; YSZ CERMET; TEMPERATURE; POLYCRYSTAL; DURABILITY; CRYSTALS AB Ni/YSZ porous composite is used widely as anode for solid oxide fuel cells. In this study, neutron diffraction patterns were recorded in-situ while a bulk porous Ni-NiO-YSZ anode was loaded under uniaxial compression. Single peak refinement was used to calculate the lattice strains of each phase in the composite, and the local stress state of each phase was derived from the measured lattice strains and the corresponding diffraction elastic constants. An internal triaxial stress state was observed to develop in the bulk of the specimen under plastic deformation, specifically in the Ni phase. Meanwhile, the NiO and YSZ phases are deforming elastically even in the macroscopically plastic regime of deformation. The von Mises equivalent stress was used to quantify the phase stress evolution. A significant stress concentration induced by the presence of pores becomes manifest in all three phase components. The reduction of stress concentration factor in Ni above the yield point of the composite can be attributed to a gradual change of the grains-pores morphology during the plastic deformation. C1 [An, Ke; Stoica, Alexandru D.; Skorpenske, Harley D.; Wang, Xun-Li] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Clausen, Bjorn] Los Alamos Natl Lab, Lujan Ctr, Los Alamos, NM 87545 USA. [Armstrong, Beth L.] Oak Ridge Natl Lab, Mat & Sci Technol Div, Oak Ridge, TN 37831 USA. RP An, K (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM kean@ornl.gov RI Wang, Xun-Li/C-9636-2010; Stoica, Alexandru/K-3614-2013; An, Ke/G-5226-2011; Clausen, Bjorn/B-3618-2015; Armstrong, Beth/E-6752-2017 OI Wang, Xun-Li/0000-0003-4060-8777; Stoica, Alexandru/0000-0001-5118-0134; An, Ke/0000-0002-6093-429X; Clausen, Bjorn/0000-0003-3906-846X; Armstrong, Beth/0000-0001-7149-3576 FU Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy [DE-AC05-00OR22725]; Office of Basic Energy Sciences (DOE); DOE [DE_AC52_06NA25396] FX The authors would like to thank Mr. John J. Henry from Materials Sciences and Technologies Division at ORNL for making the materials used in this study. The authors thank Dr. Donald W. Brown from Lujan Center, LANL for reviewing the manuscript. KA, ADS, HS and XLW acknowledge support by Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy under Contract DE-AC05-00OR22725 with UT-Battelle, LLC. This work has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Office of Basic Energy Sciences (DOE). Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE_AC52_06NA25396. NR 23 TC 2 Z9 2 U1 0 U2 12 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 579 EP 584 DI 10.1007/s00339-010-5629-9 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600010 ER PT J AU Zhao, YS Zhang, JZ Xu, HW Lokshin, KA He, DW Qian, J Pantea, C Daemen, LL Vogel, SC Ding, Y Xu, J AF Zhao, Yusheng Zhang, Jianzhong Xu, Hongwu Lokshin, Konstantin A. He, Duanwei Qian, Jiang Pantea, Cristian Daemen, Luke L. Vogel, Sven C. Ding, Yang Xu, Jian TI High-pressure neutron diffraction studies at LANSCE SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID PARIS-EDINBURGH CELL; POWDER DIFFRACTION; NANOCRYSTALLINE NICKEL; HYDROSTATIC PRESSURE; MAGNETIC-PROPERTIES; STATIC COMPRESSION; THERMAL VIBRATIONS; TEMPERATURE; GPA; HYDROGEN AB The development of neutron diffraction under extreme pressure (P) and temperature (T) conditions is highly valuable to condensed matter physics, crystal chemistry, materials science, and earth and planetary sciences. We have incorporated a 500-ton press TAP-98 into the HiPPO diffractometer at the Los Alamos Neutron Science Center (LANSCE) to conduct in situ high-P-T neutron diffraction experiments. We have developed a large gem-crystal anvil cell, ZAP, to conduct neutron diffraction experiments at high P. The ZAP cell can be used to integrate multiple experimental techniques such as neutron diffraction, laser spectroscopy, and ultrasonic interferometery. More recently, we have developed high-P low-T gas/liquid cells in conjunction with neutron diffraction. These techniques enable in situ and real-time examination of gas uptake/release processes and allow accurate, time-dependent determination of changes in crystal structure and related reaction kinetics. We have successfully used these techniques to study the equations of state, structural phase transitions, and thermo-mechanical properties of metals, ceramics, and minerals. We have conducted researches on the formation/decomposition kinetics of methane, CO(2) and hydrogen hydrate clathrates, and hydrogen/CO(2) adsorption of inclusion compounds such as metal-organic frameworks (MOFs). The aim of our research is to accurately map out phase relations and determine structural parameters (lattice constants, atomic positions, atomic thermal parameters, bond lengths, bond angles, etc.) in the P-T-X space. We are developing further high-P-T technology with a new 2000-ton press, TAPLUS-2000, and a ZIA (Deformation-DIA type) cubic anvil package to routinely achieve pressures up to 20 GPa and temperatures up to 2000 K. The design of a dedicated high-P neutron beamline, LAPTRON, is also underway for simultaneous high-P-T neutron diffraction, ultrasonic, calorimetry, radiography, and tomography studies. Studies based on high-pressure neutron diffraction are important for multidisciplinary sciences, particularly for theoretical/computational modeling/simulations. C1 [Ding, Yang; Xu, Jian] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA. [Zhao, Yusheng; Zhang, Jianzhong; Xu, Hongwu; Lokshin, Konstantin A.; He, Duanwei; Qian, Jiang; Pantea, Cristian; Daemen, Luke L.; Vogel, Sven C.] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Zhao, YS (reprint author), Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, POB 1663, Los Alamos, NM 87545 USA. EM yzhao@lanl.gov RI Pantea, Cristian/D-4108-2009; Lujan Center, LANL/G-4896-2012; Ding, Yang/K-1995-2014; OI Ding, Yang/0000-0002-8845-4618; Pantea, Cristian/0000-0002-0805-8923; Xu, Hongwu/0000-0002-0793-6923; Zhang, Jianzhong/0000-0001-5508-1782; Vogel, Sven C./0000-0003-2049-0361 FU U.S. Department of Energy's Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX This work has benefited from the use of the Lujan Neutron Scattering Center at Los Alamos Neutron Science Center, which is funded by the U.S. Department of Energy's Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE contract DE-AC52-06NA25396. NR 68 TC 9 Z9 9 U1 1 U2 29 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 585 EP 599 DI 10.1007/s00339-010-5640-1 PG 15 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600011 ER PT J AU Vogel, SC Stein, F Palm, M AF Vogel, Sven C. Stein, Frank Palm, Martin TI Investigation of the epsilon phase in the Fe-Al system by high-temperature neutron diffraction SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID TOF DIFFRACTOMETER; TEXTURE ANALYSIS; HIPPO; EQUILIBRIA; ALLOYS AB In the central part of the Fe-Al system between about 58 and 65 at.% Al, a high-temperature phase denoted as epsilon occurs with a hitherto unknown crystallographic structure. The phase is stable between 1231 degrees C and 1095 degrees C. In order to study the crystallographic structure of the epsilon phase, in situ high-temperature neutron time-of-flight diffraction experiments have been performed at the HIPPO instrument at the Los Alamos Neutron Science Center (LANSCE). The epsilon phase was found to have the formula Fe(5)Al(8) with a body-centred cubic structure of the Hume-Rothery Cu(5)Zn(8) type (1 (4) over bar 3m (No. 217), Z = 4, cI52) and 52 atoms in the unit cell. Its lattice parameter is a = 8.9756(2) angstrom at 1120 degrees C, which is 3.02 times that of cubic FeAl (B2) at the same temperature. We report here the evolution of the crystallographic parameters over the temperature range between 1080 degrees C and 1120 degrees C. C1 [Stein, Frank; Palm, Martin] Max Planck Inst Eisenforsch GmbH, D-4000 Dusseldorf, Germany. [Vogel, Sven C.] Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Vogel, SC (reprint author), Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. EM sven@lanl.gov RI Lujan Center, LANL/G-4896-2012; OI Vogel, Sven C./0000-0003-2049-0361 FU DOE Office of Basic Energy Sciences; Department of Energy [W-7405-ENG-36] FX This work has benefited from the use of the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences and Los Alamos National Laboratory funded by Department of Energy under contract W-7405-ENG-36. NR 17 TC 9 Z9 9 U1 0 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 607 EP 611 DI 10.1007/s00339-010-5619-y PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600013 ER PT J AU Ice, GE Choi, JY Takacs, PZ Khounsary, A Puzyrev, Y Molaison, JJ Tulk, CA Andersen, KH Bigault, T AF Ice, G. E. Choi, J. -Y. Takacs, P. Z. Khounsary, A. Puzyrev, Y. Molaison, J. J. Tulk, C. A. Andersen, K. H. Bigault, T. TI Nested neutron microfocusing optics on SNAP SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID MIRRORS AB The high source intensity of the Spallation Neutron Source (SNS), together with efficient detectors and large detector solid angles, now makes possible neutron experiments with much smaller sample volumes than previously were practical. Nested Kirkpatrick-Baez supermirror optics provide a promising and efficient way to further decrease the useable neutron sample size by focusing polychromatic neutrons into microbeams. Because the optics are nondispersive, they are ideal for spallation sources and for polychromatic and wide bandpass experiments on reactor sources. Theoretical calculations indicate that nested mirrors can preserve source brilliance at the sample for small beams and for modest divergences that are appropriate for diffraction experiments. Although the flux intercepted by a sample can be similar with standard beam-guided approaches, the signal-to-background is much improved with small beams on small samples. Here we describe the design, calibration and performance of a nested neutron mirror pair for the Spallation Neutrons At Pressure (SNAP) beamline at the SNS. High-pressure neutron diffraction is but one example of a large class of neutron experiments that will benefit from spatially-resolved microdiffraction. C1 [Ice, G. E.; Puzyrev, Y.] Oak Ridge Natl Lab, MST Div, Oak Ridge, TN 37831 USA. [Takacs, P. Z.] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. [Khounsary, A.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Molaison, J. J.; Tulk, C. A.] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. [Andersen, K. H.; Bigault, T.] Inst Laue Langevin, Grenoble, France. [Choi, J. -Y.] Pohang Inst Sci & Technol, Pohang Accelerator Lab, Pohang 790600, South Korea. RP Ice, GE (reprint author), Oak Ridge Natl Lab, MST Div, Oak Ridge, TN 37831 USA. EM IceGE@ornl.gov RI Tulk, Chris/R-6088-2016 OI Tulk, Chris/0000-0003-3400-3878 FU US Department of Energy [DE-AC05-00OR22725]; DOE, Division of Basic Energy Sciences and Engineering; DOE, Nuclear and Particle Physics; DOE Division of Scientific Facilities; Institut Laue-Langevin, France; Pohang Accelerator Laboratory, Korea; Department of Energy FX Research in part at the ILL, ESRF and SNS. The Spallation Neutron Source is managed by UT-Battelle, LLC, under Contract no. DE-AC05-00OR22725 for the US Department of Energy. G.E.I. and Y.P. are supported by the DOE, Division of Basic Energy Sciences and Engineering, P.Z.T. supported by the DOE, Nuclear and Particle Physics, C.A.T. and J.J.M. supported by DOE Division of Scientific Facilities, K. H. A and T. B. supported by the Institut Laue-Langevin, France. J.-Y.C. supported by the Pohang Accelerator Laboratory, Korea. This submission has been authored in part by scientists under contract to the Department of Energy. The U. S. Government retains a nonexclusive, license to publish or reproduce this submission. NR 5 TC 3 Z9 3 U1 1 U2 9 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 3 SI SI BP 635 EP 639 DI 10.1007/s00339-010-5617-0 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 599WL UT WOS:000277944600017 ER PT J AU Williams, JD Schmidt, C Serkland, D AF Williams, John D. Schmidt, C. Serkland, D. TI Processing advances in transparent Foturan(A (R)) MEMS SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID FEMTOSECOND LASER; PHOTOSENSITIVE GLASS; FABRICATION AB A lithographic patterning process for Foturan(A (R)) is demonstrated that optimizes the aspect ratio and side-wall roughness and eliminates all traces of white redeposit on the side walls. The structures may then be run through a post-etch anneal to further reduce side-wall roughness to approximately 4 nm. Thermal fusion bonding during the post-etch anneal allows for the production of three-dimensional structures. Finally, we report the optical properties of patterned Foturan(A (R)) microstructures observed using a 780-nm distributed feedback laser. C1 [Williams, John D.] Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA. [Schmidt, C.; Serkland, D.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Williams, JD (reprint author), Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA. EM williams@eng.uah.edu FU Defense Advanced Research Projects Agency (DARPA) FX The research reported in this paper was performed at Sandia National Laboratories and was made possible by support from the Defense Advanced Research Projects Agency (DARPA) under the Microsystems Technology Office: the Navigation-Grade Integrated Micro Gyroscopes (NGIMG) program in collaboration with Northrop Grumman Corporation. The authors would like to thank Hank Abbink of Northrop Grumman Corporation and Kelly Neely of Sandia National Laboratories for their contributions to this effort. NR 14 TC 9 Z9 9 U1 4 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JUN PY 2010 VL 99 IS 4 BP 777 EP 782 DI 10.1007/s00339-010-5721-1 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 607PX UT WOS:000278519700015 ER PT J AU Grills, DC Cook, AR Fujita, E George, MW Preses, JM Wishart, JF AF Grills, David C. Cook, Andrew R. Fujita, Etsuko George, Michael W. Preses, Jack M. Wishart, James F. TI Application of External-Cavity Quantum Cascade Infrared Lasers to Nanosecond Time-Resolved Infrared Spectroscopy of Condensed-Phase Samples Following Pulse Radiolysis SO APPLIED SPECTROSCOPY LA English DT Article DE Nanosecond time-resolved infrared spectroscopy; TRIR; Pulse radiolysis; External-cavity quantum cascade laser; EC-QCL ID RESONANCE RAMAN-SPECTRUM; BIOGENIC NITRIC-OXIDE; AQUEOUS-SOLUTION; RADIATION-CHEMISTRY; VIBRATIONAL SPECTROSCOPY; ABSORPTION-SPECTROSCOPY; COBALT(I) MACROCYCLE; ELECTRON-TRANSFER; RADICAL CATIONS; IR SPECTROSCOPY AB Pulse radiolysis, utilizing short pulses of high-energy electrons from accelerators, is a powerful method for rapidly generating reduced or oxidized species and other free radicals in solution. Combined with fast time-resolved spectroscopic detection (typically in the ultraviolet/visible/near-infrared), it is invaluable for monitoring the reactivity of species subjected to radiolysis on timescales ranging from picoseconds to seconds. However, it is often difficult to identify the transient intermediates definitively, due to a lack of structural information in the spectral bands. Time-resolved vibrational spectroscopy offers the structural specificity necessary for mechanistic investigations but has received only limited application in pulse radiolysis experiments. For example, time-resolved infrared (TRIR) spectroscopy has only been applied to a handful of gasphase studies, limited mainly by several technical challenges. We have exploited recent developments in commercial external-cavity quantum cascade laser (EC-QCL) technology to construct a nanosecond TRIR apparatus that has allowed, for the first time, TRIR spectra to be recorded following pulse radiolysis of condensed-phase samples. Near single-shot sensitivity of Delta OD < 1 x 10(-3) has been achieved, with a response time of <20 ns. Using two continuous-wave EC-QCLs, the current apparatus covers a probe region from 1890-2084 cm(-1), and TRIR spectra are acquired on a point-by-point basis by recording transient absorption decay traces at specific IR wavelengths and combining these to generate spectral time slices. The utility of the apparatus has been demonstrated by monitoring the formation and decay of the one-electron reduced form of the CO(2) reduction catalyst, [Re(1)(bpy)(CO)(3)(CH(3)CN)](+), in acetonitrile with nanosecond time resolution following pulse radiolysis. Characteristic red-shifting of the v(CO) IR bands confirmed that one-electron reduction of the complex took place. The availability of TRIR detection with high sensitivity opens up a wide range of mechanistic pulse radiolysis investigations that were previously difficult or impossible to perform with transient UV/visible detection. C1 [Grills, David C.; Cook, Andrew R.; Fujita, Etsuko; Preses, Jack M.; Wishart, James F.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [George, Michael W.] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England. RP Grills, DC (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM dcgrills@bnl.gov RI Fujita, Etsuko/D-8814-2013; Wishart, James/L-6303-2013; Grills, David/F-7196-2016; OI Wishart, James/0000-0002-0488-7636; Grills, David/0000-0001-8349-9158; Cook, Andrew/0000-0001-6633-3447 FU Brookhaven National Laboratory [DE-AC02-98CH10886]; Division of Chemical Sciences, Geosciences & Biosciences, Office of Basic Energy Sciences; Royal Society FX This work was performed at Brookhaven National Laboratory and was funded under contract DE-AC02-98CH10886 with the U.S. Department of Energy and supported by its Division of Chemical Sciences, Geosciences & Biosciences, Office of Basic Energy Sciences. We are grateful for discussions with Dr. Sergei Lymar (BNL) regarding possible pulse radiolysis-TR1R experiments with HNO and NO-. MWG gratefully acknowledges the receipt of a Royal Society Wolfson Merit Award. NR 97 TC 12 Z9 12 U1 6 U2 32 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JUN PY 2010 VL 64 IS 6 BP 563 EP 570 PG 8 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA 609VN UT WOS:000278686100001 PM 20537222 ER PT J AU Fischer, P AF Fischer, Peter TI IMAGING NANOSCALE MAGNETISM AND ITS FAST DYNAMICS WITH SOFT X-RAY MICROSCOPY SO ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING LA English DT Article DE nanomagnetism; spin dynamics; x-ray microscopy; X-ray magnetic dichroism ID NANOMAGNETISM AB The magnetic properties in nanoscale-sized solid state systems are of paramount interest both scientifically as well as technologically. While the charge of the electron is the basic unit in current electronics, taking into additional account the spin degree of freedom in future spin-electronics (spintronics) applications, a vast variety of new avenues will open up. Progress towards a better physical understanding of the mechanism and principles involved, as well as potential applications of nanomagnetic devices, can only be achieved with advanced analytical tools, where a direct imaging of nanoscale magnetic structures and their fast dynamics is very appealing. Magnetic transmission soft x-ray microscopy (MTXM) uses circularly polarized soft x-rays to achieve a strong magnetic contrast mechanism by x-ray magnetic circular dichroism (XMCD) effects, which occur at characteristic, i.e., element-selective, x-ray absorption edges. MTXM combines a spatial resolution down to almost 10 nm by state-of-the-art Fresnel zone plate optics in MTXM and a temporal resolution in the sub-ns regime limited by the inherent time structure of current synchrotron sources. Hence, MTXM allows us to study in a unique way, e.g., the stochastical behavior in the magnetization reversal process of thin films or the ultrafast dynamics of magnetic vortices and domain walls in confined ferromagnetic structures. Since future x-ray sources will deliver fsec short and high intense soft x-ray photon pulses, magnetic soft x-ray microscopy techniques hold the promise of magnetic imaging down to fundamental magnetic length and time scales. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Fischer, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, MS 2-400,l Cyclotron Rd, Berkeley, CA 94720 USA. EM PJFischer@lbl.gov RI MSD, Nanomag/F-6438-2012; Fischer, Peter/A-3020-2010 OI Fischer, Peter/0000-0002-9824-9343 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 This work was supported 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. NR 31 TC 0 Z9 0 U1 2 U2 3 PU KING FAHD UNIV PETROLEUM MINERALS PI DHAHRAN PA C/O UNIV, DHAHRAN 31261, SAUDI ARABIA SN 1319-8025 J9 ARAB J SCI ENG JI Arab. J. Sci. Eng. PD JUN PY 2010 VL 35 IS 1C BP 7 EP 17 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 653DY UT WOS:000282069300002 ER PT J AU Chen, XB Burda, C Guo, JH Smith, KE Glans, PA Learmonth, T AF Chen, Xiaobo Burda, Clemens Guo, Jinghua Smith, Kevin E. Glans, Per-Anders Learmonth, Timothy TI X-RAY ABSORPTION AND EMISSION STUDY OF NITROGEN-DOPED TITANIA NANOPARTICLES SO ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING LA English DT Article DE x-ray absorption spectroscopy; x-ray emission spectroscopy; nanostructured TiO(2); nitrogen doping ID VISIBLE-LIGHT; SYNCHROTRON-RADIATION; TIO2; SPECTROSCOPY; PHOTOCATALYSIS; OXIDES; NANOCATALYSTS; NANOCRYSTALS; CHEMISTRY; OXIDATION AB Nitrogen-doped TiO(2) nanoparticles with visible-light absorption properties were investigated with x-ray absorption and emission spectroscopy. The results indicate the substitution of nitrogen on the oxygen sites which are bonded to titanium atoms in the TiO(2) host. The nitrogen dopant does not apparently change the crystal field nor the contribution of the O orbitals to the electronic structure of the TiO(2) host, but alters slightly the Ti component of the electronic structure of the TiO(2) host. Such a doping effect is likely to be the explanation for the visible-light absorption properties of the nitrogen-doped TiO(2) nanoparticles. C1 [Guo, Jinghua] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Chen, Xiaobo; Burda, Clemens] Case Western Reserve Univ, Dept Chem, Ctr Chem Dynam & Nanomat Res, Cleveland, OH 44106 USA. [Smith, Kevin E.; Glans, Per-Anders; Learmonth, Timothy] Boston Univ, Dept Phys, Boston, MA 02215 USA. [Glans, Per-Anders; Learmonth, Timothy] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA USA. RP Guo, JH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM jguo@lbl.gov RI Burda, Clemens/C-5107-2008; Glans, Per-Anders/G-8674-2016 OI Burda, Clemens/0000-0002-7342-2840; FU NSF [CHE-0239688]; ACS-PRF; Department of Energy at Lawrence Berkeley National Laboratory [DE-FG02-98ER45680, DE-AC03-76SF000098]; Office of Science, Basic Energy Sciences FX CB gratefully acknowledges financial support from NSF Grant (#CHE-0239688) and ACS-PRF and the support for XPS measurements by Dr. W. Jennings. The Boston University program is supported in part by the Department of Energy under DE-FG02-98ER45680. The work at ALS is supported by the Office of Science, Basic Energy Sciences, and the Department of Energy under contract DE-AC03-76SF000098 at Lawrence Berkeley National Laboratory. NR 31 TC 6 Z9 6 U1 0 U2 7 PU KING FAHD UNIV PETROLEUM MINERALS PI DHAHRAN PA C/O UNIV, DHAHRAN 31261, SAUDI ARABIA SN 1319-8025 J9 ARAB J SCI ENG JI Arab. J. Sci. Eng. PD JUN PY 2010 VL 35 IS 1C BP 65 EP 71 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 653DY UT WOS:000282069300008 ER PT J AU Dieckmann, J McKenney, K Guernsey, M Brodrick, J AF Dieckmann, John McKenney, Kurtis Guernsey, Matthew Brodrick, James TI VFDs for Large Chillers SO ASHRAE JOURNAL LA English DT Editorial Material C1 [Dieckmann, John; McKenney, Kurtis; Guernsey, Matthew] Mech Syst Grp TIAX LLC, Cambridge, MA USA. [Brodrick, James] US DOE, Bldg Technol Program, Washington, DC USA. RP Dieckmann, J (reprint author), Mech Syst Grp TIAX LLC, Cambridge, MA USA. NR 6 TC 0 Z9 0 U1 0 U2 1 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD JUN PY 2010 VL 52 IS 6 BP 58 EP + PG 3 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 610RU UT WOS:000278753500022 ER PT J AU Crawley, D Torcellini, P Long, N Bonnema, E Field, K Peterson, K AF Crawley, Drury Torcellini, Paul Long, Nicholas Bonnema, Eric Field, Kristin Peterson, Kent TI Modeling Energy Savings SO ASHRAE JOURNAL LA English DT Article C1 [Crawley, Drury] US DOE, Bldg Performance Prod Bentley Syst, Washington, DC USA. [Field, Kristin] Natl Renewable Energy Lab, Golden, CO USA. [Peterson, Kent] P2S Engn, Long Beach, CA USA. RP Crawley, D (reprint author), US DOE, Bldg Performance Prod Bentley Syst, Washington, DC USA. NR 5 TC 1 Z9 1 U1 0 U2 1 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD JUN PY 2010 VL 52 IS 6 BP S30 EP + PG 2 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 610RU UT WOS:000278753500017 ER PT J AU Vaishampayan, P Osman, S Andersen, G Venkateswaran, K AF Vaishampayan, Parag Osman, Shariff Andersen, Gary Venkateswaran, Kasthuri TI High-Density 16S Microarray and Clone Library-Based Microbial Community Composition of the Phoenix Spacecraft Assembly Clean Room SO ASTROBIOLOGY LA English DT Article DE Microbial ecology; Spacecraft assembly facility ID MICROBIOLOGICAL PROFILES; DIVERSITY; ENVIRONMENTS; POPULATIONS; UNIFRAC; DNA AB The bacterial diversity and comparative community structure of a clean room used for assembling the Phoenix spacecraft was characterized throughout the spacecraft assembly process by using 16S rRNA gene cloning/sequencing and DNA microarray (PhyloChip) technologies. Samples were collected from several locations of the clean room at three time points: before Phoenix's arrival (PHX-B), during hardware assembly (PHX-D), and after the spacecraft was removed for launch (PHX-A). Bacterial diversity comprised of all major bacterial phyla of PHX-B was found to be statistically different from PHX-D and PHX-A samples. Due to stringent cleaning and decontamination protocols during assembly, PHX-D bacterial diversity was dramatically reduced when compared to PHX-B and PHX-A samples. Comparative community analysis based on PhyloChip results revealed similar overall trends as were seen in clone libraries, but the high-density phylogenetic microarray detected larger diversity in all sampling events. The decrease in community complexity in PHX-D compared to PHX-B, and the subsequent recurrence of these organisms in PHX-A, speaks to the effectiveness of NASA cleaning protocols. However, the persistence of a subset of bacterial signatures throughout all spacecraft assembly phases underscores the need for continued refinement of sterilization technologies and the implementation of safeguards that monitor and inventory microbial contaminants. C1 [Vaishampayan, Parag; Venkateswaran, Kasthuri] CALTECH, Jet Prop Lab, Biotechnol & Planetary Protect Grp, Pasadena, CA USA. [Osman, Shariff; Andersen, Gary] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, Berkeley, CA 94720 USA. RP Vaishampayan, P (reprint author), 4800 Oak Grove Dr,M-S 89, Pasadena, CA 91109 USA. EM vaishamp@jpl.nasa.gov RI Andersen, Gary/G-2792-2015 OI Andersen, Gary/0000-0002-1618-9827 FU U.S. Department of Energy by the University of California, Lawrence Berkeley National Laboratory (LBL) [DE-AC02-05CH11231]; NASA FX Part of the research described in this publication was carried out at the Jet Propulsion Laboratory (JPL), California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Additional work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Berkeley National Laboratory (LBL), under contract DE-AC02-05CH11231. This research was funded by NASA Research Announcement (NRA) ROSS 2006 awarded to Kasthuri Venkateswaran. We are grateful to members of the Biotechnology and Planetary Protection group (JPL) and the Center for Environmental Biotechnology (LBL) for technical assistance. We also appreciate the help rendered by R. Sumner, B. Petsos, Y. Salinas, and D. Vaughn during sampling, and T. DeSantis, E. Brodie, and Y. Piceno during PhyloChip analysis. We are thankful to J. Spry, K. Buxbaum, C. Conley, and J. Rummel for valuable advice and encouragement. NR 42 TC 20 Z9 20 U1 0 U2 7 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1531-1074 J9 ASTROBIOLOGY JI Astrobiology PD JUN PY 2010 VL 10 IS 5 BP 499 EP 508 DI 10.1089/ast.2009.0443 PG 10 WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology GA 623WS UT WOS:000279778100004 PM 20624058 ER PT J AU Boyd, RN Kajino, T Onaka, T AF Boyd, R. N. Kajino, T. Onaka, T. TI Supernovae and the Chirality of the Amino Acids SO ASTROBIOLOGY LA English DT Article DE Amino acids; Chirality; Origin of life; Molecular clouds; Supernova neutrinos ID ASYMMETRIC AUTOCATALYSIS; ENANTIOMERIC EXCESS; NMR-SPECTROSCOPY; OPTICAL-ACTIVITY; STAR-FORMATION; LYMAN-ALPHA; AMPLIFICATION; HAYABUSA; LIFE; DISCRIMINATION AB A mechanism for creating amino acid enantiomerism that always selects the same large-scale chirality is identified, and subsequent chemical replication and galactic mixing that would populate the Galaxy with the predominant species is described. This involves (1) the spin of the (14)N in the amino acids, or in precursor molecules from which amino acids might be formed, that couples to the chirality of the molecules; (2) the neutrinos emitted from the supernova, together with the magnetic field from the nascent neutron star or black hole formed from the supernova, which selectively destroy one orientation of the (14)N and thus select the chirality associated with the other (14)N orientation; (3) chemical evolution, by which the molecules replicate and evolve to more complex forms of a single chirality on a relatively short timescale; and (4) galactic mixing on a longer timescale that mixes the selected molecules throughout the Galaxy. C1 [Boyd, R. N.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Boyd, R. N.; Kajino, T.] Natl Astron Observ, Tokyo 181, Japan. [Kajino, T.; Onaka, T.] Univ Tokyo, Dept Astron, Grad Sch Sci, Tokyo 113, Japan. RP Boyd, RN (reprint author), Lawrence Livermore Natl Lab, POB 808,L-414, Livermore, CA 94551 USA. EM boyd11@llnl.gov RI ONAKA, TAKASHI/G-5058-2014 FU US National Science Foundation [PHY-9901241]; Lawrence Livermore National Security, LLC, (LLNS) [DE-AC52-07NA27344] FX This work has been supported by the US National Science Foundation grant PHY-9901241 and under the auspices of the Lawrence Livermore National Security, LLC, (LLNS) under Contract No. DE-AC52-07NA27344. This paper is LLNL-ABS-412217. The authors express their gratitude for helpful discussions with N. Sleep, I. Tanihata, R. Kuroda, T. Land, L. D. Barron, L. Fried, and E. Branscomb. They also very much appreciate the comments of the anonymous reviewers. NR 59 TC 9 Z9 9 U1 0 U2 11 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1531-1074 J9 ASTROBIOLOGY JI Astrobiology PD JUN PY 2010 VL 10 IS 5 BP 561 EP 568 DI 10.1089/ast.2009.0427 PG 8 WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology GA 623WS UT WOS:000279778100008 PM 20624062 ER PT J AU Schneider, DP Richards, GT Hall, PB Strauss, MA Anderson, SF Boroson, TA Ross, NP Shen, Y Brandt, WN Fan, XH Inada, N Jester, S Knapp, GR Krawczyk, CM Thakar, AR Vanden Berk, DE Voges, W Yanny, B York, DG Bahcall, NA Bizyaev, D Blanton, MR Brewington, H Brinkmann, J Eisenstein, D Frieman, JA Fukugita, M Gray, J Gunn, JE Hibon, P Ivezic, Z Kent, SM Kron, RG Lee, MG Lupton, RH Malanushenko, E Malanushenko, V Oravetz, D Pan, K Pier, JR Price, TN Saxe, DH Schlegel, DJ Simmons, A Snedden, SA SubbaRao, MU Szalay, AS Weinberg, DH AF Schneider, Donald P. Richards, Gordon T. Hall, Patrick B. Strauss, Michael A. Anderson, Scott F. Boroson, Todd A. Ross, Nicholas P. Shen, Yue Brandt, W. N. Fan, Xiaohui Inada, Naohisa Jester, Sebastian Knapp, G. R. Krawczyk, Coleman M. Thakar, Anirudda R. Vanden Berk, Daniel E. Voges, Wolfgang Yanny, Brian York, Donald G. Bahcall, Neta A. Bizyaev, Dmitry Blanton, Michael R. Brewington, Howard Brinkmann, J. Eisenstein, Daniel Frieman, Joshua A. Fukugita, Masataka Gray, Jim Gunn, James E. Hibon, Pascale Ivezic, Zeljko Kent, Stephen M. Kron, Richard G. Lee, Myung Gyoon Lupton, Robert H. Malanushenko, Elena Malanushenko, Viktor Oravetz, Dan Pan, K. Pier, Jeffrey R. Price, Ted N., III Saxe, David H. Schlegel, David J. Simmons, Audry Snedden, Stephanie A. SubbaRao, Mark U. Szalay, Alexander S. Weinberg, David H. TI THE SLOAN DIGITAL SKY SURVEY QUASAR CATALOG. V. SEVENTH DATA RELEASE SO ASTRONOMICAL JOURNAL LA English DT Article DE catalogs; quasars: general; surveys ID SPECTROSCOPIC TARGET SELECTION; ABSORPTION-LINE QUASARS; SURVEY PHOTOMETRIC SYSTEM; SURVEY COMMISSIONING DATA; ACTIVE GALACTIC NUCLEI; 1ST DATA RELEASE; 5TH DATA RELEASE; 3RD DATA RELEASE; ROSAT ALL-SKY; X-RAY AB We present the fifth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog, which is based upon the SDSS Seventh Data Release. The catalog, which contains 105,783 spectroscopically confirmed quasars, represents the conclusion of the SDSS-I and SDSS-II quasar survey. The catalog consists of the SDSS objects that have luminosities larger than M-i = -22.0 (in a cosmology with H-0 = 70 km s(-1) Mpc(-1), Omega(M) = 0.3, and Omega(Lambda) = 0.7), have at least one emission line with FWHM larger than 1000 km s-1 or have interesting/ complex absorption features, are fainter than i approximate to 15.0, and have highly reliable redshifts. The catalog covers an area of approximate to 9380 deg(2). The quasar redshifts range from 0.065 to 5.46, with a median value of 1.49; the catalog includes 1248 quasars at redshifts greater than 4, of which 56 are at redshifts greater than 5. The catalog contains 9210 quasars with i < 18; slightly over half of the entries have i < 19. For each object the catalog presents positions accurate to better than 0.'' 1 rms per coordinate, five-band (ugriz) CCD-based photometry with typical accuracy of 0.03 mag, and information on the morphology and selection method. The catalog also contains radio, near-infrared, and X-ray emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra cover the wavelength region 3800-9200 angstrom at a spectral resolution of similar or equal to 2000; the spectra can be retrieved from the SDSS public database using the information provided in the catalog. Over 96% of the objects in the catalog were discovered by the SDSS. We also include a supplemental list of an additional 207 quasars with SDSS spectra whose archive photometric information is incomplete. C1 [Schneider, Donald P.; Ross, Nicholas P.; Brandt, W. N.; Vanden Berk, Daniel E.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Richards, Gordon T.; Krawczyk, Coleman M.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Hall, Patrick B.] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada. [Strauss, Michael A.; Shen, Yue; Knapp, G. R.; Bahcall, Neta A.; Gunn, James E.; Lupton, Robert H.; Price, Ted N., III] Princeton Univ Observ, Princeton, NJ 08544 USA. [Anderson, Scott F.; Ivezic, Zeljko] Univ Washington, Dept Astron, Seattle, WA 98195 USA. [Boroson, Todd A.] Natl Opt Astron Observ, Tucson, AZ 85726 USA. [Fan, Xiaohui; Eisenstein, Daniel] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. [Inada, Naohisa] RIKEN, Cosm Radiat Lab, Wako, Saitama 3510198, Japan. [Jester, Sebastian] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England. [Jester, Sebastian] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Thakar, Anirudda R.; Szalay, Alexander S.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. [Voges, Wolfgang] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. [Voges, Wolfgang] Max Planck Digital Lib, D-80799 Munich, Germany. [Yanny, Brian; Frieman, Joshua A.; Kent, Stephen M.; Kron, Richard G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [York, Donald G.; Frieman, Joshua A.; Kent, Stephen M.; Kron, Richard G.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [York, Donald G.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Bizyaev, Dmitry; Brewington, Howard; Brinkmann, J.; Malanushenko, Elena; Malanushenko, Viktor; Oravetz, Dan; Pan, K.; Simmons, Audry; Snedden, Stephanie A.] Apache Point Observ, Sunspot, NM 88349 USA. [Blanton, Michael R.] NYU, Dept Phys, New York, NY 10003 USA. [Frieman, Joshua A.] Univ Chicago, Ctr Cosmol Phys, Chicago, IL 60637 USA. [Fukugita, Masataka] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan. [Gray, Jim] Microsoft Res, San Francisco, CA 94105 USA. [Hibon, Pascale] Korea Inst Adv Study, Seoul 130012, South Korea. [Lee, Myung Gyoon] Seoul Natl Univ, Dept Phys & Astron, Seoul 151742, South Korea. [Pier, Jeffrey R.] Natl Sci Fdn, Div Astron Sci, Arlington, VA 22230 USA. [Schlegel, David J.] LBNL, Berkeley, CA 94720 USA. [SubbaRao, Mark U.] Univ Chicago, Chicago, IL 60605 USA. [Weinberg, David H.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. RP Schneider, DP (reprint author), Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA. RI Brandt, William/N-2844-2015 OI Brandt, William/0000-0002-0167-2453 NR 71 TC 463 Z9 466 U1 1 U2 12 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 EI 1538-3881 J9 ASTRON J JI Astron. J. PD JUN PY 2010 VL 139 IS 6 BP 2360 EP 2373 DI 10.1088/0004-6256/139/6/2360 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 595WG UT WOS:000277643700022 ER PT J AU Galametz, A Stern, D Stanford, SA De Breuck, C Vernet, J Griffith, RL Harrison, FA AF Galametz, A. Stern, D. Stanford, S. A. De Breuck, C. Vernet, J. Griffith, R. L. Harrison, F. A. TI Spectroscopic confirmation of a galaxy cluster associated with 7C 1756+6520 at z=1.416 SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE large-scale structure of Universe; galaxies: clusters: general; Galaxy: evolution; galaxies: individual: 7C 1756+6520; galaxies: clusters: individual: 7C1756+6520 ID ACTIVE GALACTIC NUCLEI; IRAC SHALLOW SURVEY; YALE-CHILE MUSYC; RADIO GALAXIES; X-RAY; MULTIWAVELENGTH SURVEY; MIDINFRARED SELECTION; RED-SEQUENCE; PROTOCLUSTERS; TELESCOPE AB We present spectroscopic follow-up of an overdensity of galaxies photometrically selected to be at 1.4 < z < 2.5 found in the vicinity of the radio galaxy 7C 1756+6520 at z = 1.4156. Using the DEIMOS optical multi-object spectrograph on the Keck 2 telescope, we observed a total of 129 BzK-selected sources, comprising 82 blue, star-forming galaxy candidates (sBzK) and 47 red, passively-evolving galaxy candidates (pBzK*), as well as 11 mid-infrared selected AGN candidates. We obtain robust spectroscopic redshifts for 36 blue galaxies, 7 red galaxies and 9 AGN candidates. Assuming all foreground interlopers were identified, we find that only 16% (9%) of the sBzK (pBzK*) galaxies are at z < 1.4. Therefore, the BzK criteria are shown to be relatively robust at identifying galaxies at moderate redshifts. Twenty-one galaxies, including the radio galaxy, four additional AGN candidates and three red galaxy candidates are found with 1.4156 +/- 0.025, forming a large scale structure at the redshift of the radio galaxy. Of these, eight have projected offsets < 2 Mpc relative to the radio galaxy position and have velocity offsets < 1000 km s(-1) relative to the radio galaxy redshift. This confirms that 7C 1756+6520 is associated with a high-redshift galaxy cluster. A second compact group of four galaxies is found at z similar to 1.437, forming a sub-group offset by Delta v similar to 3000 km s(-1) and approximately 1.'5 east of the radio galaxy. C1 [Galametz, A.; De Breuck, C.; Vernet, J.] European So Observ, D-85748 Garching, Germany. [Galametz, A.] Observ Astron, F-67000 Strasbourg, France. [Stern, D.; Griffith, R. L.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. [Stanford, S. A.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. [Harrison, F. A.] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA. RP Galametz, A (reprint author), European So Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany. EM agalamet@eso.org OI Vernet, Joel/0000-0002-8639-8560; De Breuck, Carlos/0000-0002-6637-3315 FU NASA; US Department of Energy, National Nuclear Security Administration [W-7405-Eng-48] FX This work is based on a spectroscopic campaign at the W. M. Keck Observatory, a scientific partnership between the University of California and the California Institute of Technology, made possible by a generous gift of the W. M. Keck Foundation. We are very grateful to Tadayuki Kodama for having provided the models of red sequence presented in this paper. We thank the anonymous referee for his/her careful reading of the manuscript and constructive comments. The work of DS and RLG was carried out at Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. S.A.S.'s work was performed under the auspices of the US Department of Energy, National Nuclear Security Administration by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48. NR 37 TC 21 Z9 21 U1 0 U2 1 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD JUN-JUL PY 2010 VL 516 AR A101 DI 10.1051/0004-6361/201014356 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 630LT UT WOS:000280275400116 ER PT J AU Abbasi, R Abdou, Y Ackermann, M Adams, J Aguilar, JA Ahlers, M Andeen, K Auffenberg, J Bai, X Baker, M Barwick, SW Bay, R Alba, JLB Beattie, K Beatty, JJ Bechet, S Becker, JK Becker, KH Benabderrahmane, ML Berdermann, J Berghaus, P Berley, D Bernardini, E Bertrand, D Besson, DZ Bissok, M Blaufuss, E Boersma, DJ Bohm, C Bolmont, J Boser, S Botner, O Bradley, L Braun, J Breder, D Castermans, T Chirkin, D Christy, B Clem, J Cohen, S Cowen, DF D'Agostino, MV Danninger, M Day, CT De Clercq, C Demirors, L Depaepe, O Descamps, F Desiati, P de Vries-Uiterweerd, G DeYoung, T Diaz-Velez, JC Dreyer, J Dumm, JP Duvoort, MR Edwards, WR Ehrlich, R Eisch, J Ellsworth, RW Engdegard, O Euler, S Evenson, PA Fadiran, O Fazely, AR Feusels, T Filimonov, K Finley, C Foerster, MM Fox, BD Franckowiak, A Franke, R Gaisser, TK Gallagher, J Ganugapati, R Gerhardt, L Gladstone, L Goldschmidt, A Goodman, JA Gozzini, R Grant, D Griesel, T Gross, A Grullon, S Gunasingha, RM Gurtner, M Ha, C Hallgren, A Halzen, F Han, K Hanson, K Hasegawa, Y Heise, J Helbing, K Herquet, P Hickford, S Hill, GC Hoffman, KD Hoshina, K Hubert, D Huelsnitz, W Hulss, JP Hulth, PO Hultqvist, K Hussain, S Imlay, RL Inaba, M Ishihara, A Jacobsen, J Japaridze, GS Johansson, H Joseph, JM Kampert, KH Kappes, A Karg, T Karle, A Kelley, JL Kenny, P Kiryluk, J Kislat, F Klein, SR Klepser, S Knops, S Kohnen, G Kolanoski, H Kopke, L Kowalski, M Kowarik, T Krasberg, M Kuehn, K Kuwabara, T Labare, M Lafebre, S Laihem, K Landsman, H Lauer, R Leich, H Lennarz, D Lucke, A Lundberg, J Lunemann, J Madsen, J Majumdar, P Maruyama, R Mase, K Matis, HS McParland, CP Meagher, K Merck, M Meszaros, P Middell, E Milke, N Miyamoto, H Mohr, A Montaruli, T Morse, R Movit, SM Munich, K Nahnhauer, R Nam, JW Niessen, P Nygren, DR Odrowski, S Olivas, A Olivo, M Ono, M Panknin, S Patton, S de los Heros, CP Petrovic, J Piegsa, A Pieloth, D Pohl, AC Porrata, R Potthoff, N Price, PB Prikockis, M Przybylski, GT Rawlins, K Redl, P Resconi, E Rhode, W Ribordy, M Rizzo, A Rodrigues, JP Roth, P Rothmaier, F Rott, C Roucelle, C Rutledge, D Ryckbosch, D Sander, HG Sarkar, S Satalecka, K Schlenstedt, S Schmidt, T Schneider, D Schukraft, A Schulz, O Schunck, M Seckel, D Semburg, B Seo, SH Sestayo, Y Seunarine, S Silvestri, A Slipak, A Spiczak, GM Spiering, C Stamatikos, M Stanev, T Stephens, G Stezelberger, T Stokstad, RG Stoufer, MC Stoyanov, S Strahler, EA Straszheim, T Sulanke, KH Sullivan, GW Swillens, Q Taboada, I Tarasova, O Tepe, A Ter-Antonyan, S Terranova, C Tilav, S Tluczykont, M Toale, PA Tosi, D Turcan, D van Eijndhoven, N Vandenbroucke, J Van Overloop, A Vogt, C Voigt, B Walck, C Waldenmaier, T Walter, M Wendt, C Westerhoff, S Whitehorn, N Wiebusch, CH Wiedemann, A Wikstrom, G Williams, DR Wischnewski, R Wissing, H Woschnagg, K Xu, XW Yodh, G Yoshida, S AF Abbasi, R. Abdou, Y. Ackermann, M. Adams, J. Aguilar, J. A. Ahlers, M. Andeen, K. Auffenberg, J. Bai, X. Baker, M. Barwick, S. W. Bay, R. Alba, J. L. Bazo Beattie, K. Beatty, J. J. Bechet, S. Becker, J. K. Becker, K. -H. Benabderrahmane, M. L. Berdermann, J. Berghaus, P. Berley, D. Bernardini, E. Bertrand, D. Besson, D. Z. Bissok, M. Blaufuss, E. Boersma, D. J. Bohm, C. Bolmont, J. Boeser, S. Botner, O. Bradley, L. Braun, J. Breder, D. Castermans, T. Chirkin, D. Christy, B. Clem, J. Cohen, S. Cowen, D. F. D'Agostino, M. V. Danninger, M. Day, C. T. De Clercq, C. Demiroers, L. Depaepe, O. Descamps, F. Desiati, P. de Vries-Uiterweerd, G. DeYoung, T. Diaz-Velez, J. C. Dreyer, J. Dumm, J. P. Duvoort, M. R. Edwards, W. R. Ehrlich, R. Eisch, J. Ellsworth, R. W. Engdegard, O. Euler, S. Evenson, P. A. Fadiran, O. Fazely, A. R. Feusels, T. Filimonov, K. Finley, C. Foerster, M. M. Fox, B. D. Franckowiak, A. Franke, R. Gaisser, T. K. Gallagher, J. Ganugapati, R. Gerhardt, L. Gladstone, L. Goldschmidt, A. Goodman, J. A. Gozzini, R. Grant, D. Griesel, T. Gross, A. Grullon, S. Gunasingha, R. M. Gurtner, M. Ha, C. Hallgren, A. Halzen, F. Han, K. Hanson, K. Hasegawa, Y. Heise, J. Helbing, K. Herquet, P. Hickford, S. Hill, G. C. Hoffman, K. D. Hoshina, K. Hubert, D. Huelsnitz, W. Huelss, J.-P. Hulth, P. O. Hultqvist, K. Hussain, S. Imlay, R. L. Inaba, M. Ishihara, A. Jacobsen, J. Japaridze, G. S. Johansson, H. Joseph, J. M. Kampert, K. -H. Kappes, A. Karg, T. Karle, A. Kelley, J. L. Kenny, P. Kiryluk, J. Kislat, F. Klein, S. R. Klepser, S. Knops, S. Kohnen, G. Kolanoski, H. Koepke, L. Kowalski, M. Kowarik, T. Krasberg, M. Kuehn, K. Kuwabara, T. Labare, M. Lafebre, S. Laihem, K. Landsman, H. Lauer, R. Leich, H. Lennarz, D. Lucke, A. Lundberg, J. Luenemann, J. Madsen, J. Majumdar, P. Maruyama, R. Mase, K. Matis, H. S. McParland, C. P. Meagher, K. Merck, M. Meszaros, P. Middell, E. Milke, N. Miyamoto, H. Mohr, A. Montaruli, T. Morse, R. Movit, S. M. Muenich, K. Nahnhauer, R. Nam, J. W. Niessen, P. Nygren, D. R. Odrowski, S. Olivas, A. Olivo, M. Ono, M. Panknin, S. Patton, S. de los Heros, C. Perez Petrovic, J. Piegsa, A. Pieloth, D. Pohl, A. C. Porrata, R. Potthoff, N. Price, P. B. Prikockis, M. Przybylski, G. T. Rawlins, K. Redl, P. Resconi, E. Rhode, W. Ribordy, M. Rizzo, A. Rodrigues, J. P. Roth, P. Rothmaier, F. Rott, C. Roucelle, C. Rutledge, D. Ryckbosch, D. Sander, H. -G. Sarkar, S. Satalecka, K. Schlenstedt, S. Schmidt, T. Schneider, D. Schukraft, A. Schulz, O. Schunck, M. Seckel, D. Semburg, B. Seo, S. H. Sestayo, Y. Seunarine, S. Silvestri, A. Slipak, A. Spiczak, G. M. Spiering, C. Stamatikos, M. Stanev, T. Stephens, G. Stezelberger, T. Stokstad, R. G. Stoufer, M. C. Stoyanov, S. Strahler, E. A. Straszheim, T. Sulanke, K. -H. Sullivan, G. W. Swillens, Q. Taboada, I. Tarasova, O. Tepe, A. Ter-Antonyan, S. Terranova, C. Tilav, S. Tluczykont, M. Toale, P. A. Tosi, D. Turcan, D. van Eijndhoven, N. Vandenbroucke, J. Van Overloop, A. Vogt, C. Voigt, B. Walck, C. Waldenmaier, T. Walter, M. Wendt, C. Westerhoff, S. Whitehorn, N. Wiebusch, C. H. Wiedemann, A. Wikstrom, G. Williams, D. R. Wischnewski, R. Wissing, H. Woschnagg, K. Xu, X. W. Yodh, G. Yoshida, S. CA IceCube Collaboration TI Measurement of sound speed vs. depth in South Pole ice for neutrino astronomy SO ASTROPARTICLE PHYSICS LA English DT Article DE Neutrino astronomy; Acoustics; South Pole; Sound speed; Pressure waves; Shear waves ID ACOUSTIC DETECTION; ATTENUATION; ANTARCTICA; AMANDA; NOISE AB We have measured the speed of both pressure waves and shear waves as a function of depth between 80 and 500 m depth in South Pole ice with better than 1% precision. The measurements were made using the South Pole Acoustic Test Setup (SPATS), an array of transmitters and sensors deployed in the ice at the South Pole in order to measure the acoustic properties relevant to acoustic detection of astrophysical neutrinos. The transmitters and sensors use piezoceramics operating at similar to 5-25 kHz. Between 200 m and 500 m depth, the measured profile is consistent with zero variation of the sound speed with depth, resulting in zero refraction, for both pressure and shear waves. We also performed a complementary study featuring an explosive signal propagating vertically from 50 to 2250 m depth, from which we determined a value for the pressure wave speed consistent with that determined for shallower depths, higher frequencies, and horizontal propagation with the SPATS sensors. The sound speed profile presented here can be used to achieve good acoustic source position and emission time reconstruction in general, and neutrino direction and energy reconstruction in particular. The reconstructed quantities could also help separate neutrino signals from background. (C) 2010 Elsevier B.V. All rights reserved. C1 [Bay, R.; D'Agostino, M. V.; Filimonov, K.; Gerhardt, L.; Kiryluk, J.; Klein, S. R.; Porrata, R.; Price, P. B.; Vandenbroucke, J.; Woschnagg, K.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Bissok, M.; Euler, S.; Huelss, J.-P.; Laihem, K.; Lennarz, D.; Schukraft, A.; Schunck, M.; Vogt, C.; Wiebusch, C. H.; Wissing, H.] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany. [Williams, D. R.] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA. [Rawlins, K.] Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA. [Fadiran, O.; Japaridze, G. S.] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA. [Taboada, I.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA. [Taboada, I.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA. [Fazely, A. R.; Gunasingha, R. M.; Imlay, R. L.; Ter-Antonyan, S.; Xu, X. W.] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA. [Beattie, K.; Day, C. T.; Edwards, W. R.; Gerhardt, L.; Goldschmidt, A.; Joseph, J. M.; Kiryluk, J.; Klein, S. R.; Matis, H. S.; McParland, C. P.; Nygren, D. R.; Patton, S.; Przybylski, G. T.; Stezelberger, T.; Stokstad, R. G.; Stoufer, M. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Franckowiak, A.; Kolanoski, H.; Kowalski, M.; Lucke, A.; Mohr, A.; Panknin, S.; Waldenmaier, T.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany. [Bechet, S.; Bertrand, D.; Labare, M.; Petrovic, J.; Swillens, Q.] Univ Libre Bruxelles, Sci Fac CP230, B-1050 Brussels, Belgium. [De Clercq, C.; Depaepe, O.; Hubert, D.; Rizzo, A.] Free Univ Brussels, Dienst ELEM, B-1050 Brussels, Belgium. [Hasegawa, Y.; Inaba, M.; Ishihara, A.; Mase, K.; Miyamoto, H.; Ono, M.; Yoshida, S.] Chiba Univ, Dept Phys, Chiba 2638522, Japan. [Adams, J.; Gross, A.; Han, K.; Hickford, S.; Seunarine, S.] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand. [Berley, D.; Blaufuss, E.; Christy, B.; Ehrlich, R.; Ellsworth, R. W.; Goodman, J. A.; Hoffman, K. D.; Huelsnitz, W.; Meagher, K.; Olivas, A.; Redl, P.; Roth, P.; Schmidt, T.; Straszheim, T.; Sullivan, G. W.; Turcan, D.; Wissing, H.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA. [Beatty, J. J.; Kuehn, K.; Rott, C.; Stamatikos, M.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Beatty, J. J.; Kuehn, K.; Rott, C.; Stamatikos, M.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA. [Beatty, J. J.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. [Becker, J. K.; Dreyer, J.; Milke, N.; Muenich, K.; Rhode, W.; Wiedemann, A.] TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany. [Abdou, Y.; Descamps, F.; de Vries-Uiterweerd, G.; Feusels, T.; Ryckbosch, D.; Van Overloop, A.] Univ Ghent, Dept Subatom & Radiat Phys, B-9000 Ghent, Belgium. [Gross, A.; Odrowski, S.; Resconi, E.; Roucelle, C.; Schulz, O.; Sestayo, Y.] Max Planck Inst Kernphys, D-69177 Heidelberg, Germany. [Barwick, S. W.; Nam, J. W.; Silvestri, A.; Yodh, G.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. [Cohen, S.; Demiroers, L.; Ribordy, M.; Terranova, C.] Ecole Polytech Fed Lausanne, High Energy Phys Lab, CH-1015 Lausanne, Switzerland. [Besson, D. Z.; Kenny, P.] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA. [Gallagher, J.] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA. [Abbasi, R.; Aguilar, J. A.; Andeen, K.; Baker, M.; Berghaus, P.; Boersma, D. J.; Braun, J.; Chirkin, D.; Desiati, P.; Diaz-Velez, J. C.; Dumm, J. P.; Eisch, J.; Finley, C.; Ganugapati, R.; Gladstone, L.; Grullon, S.; Halzen, F.; Hanson, K.; Hill, G. C.; Hoshina, K.; Jacobsen, J.; Kappes, A.; Karle, A.; Kelley, J. L.; Krasberg, M.; Landsman, H.; Maruyama, R.; Merck, M.; Montaruli, T.; Morse, R.; Rodrigues, J. P.; Schneider, D.; Strahler, E. A.; Wendt, C.; Westerhoff, S.; Whitehorn, N.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Gozzini, R.; Griesel, T.; Koepke, L.; Kowarik, T.; Luenemann, J.; Piegsa, A.; Rothmaier, F.; Sander, H. -G.] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany. [Castermans, T.; Herquet, P.; Kohnen, G.] Univ Mons, B-7000 Mons, Belgium. [Bai, X.; Clem, J.; Evenson, P. A.; Gaisser, T. K.; Hussain, S.; Kuwabara, T.; Niessen, P.; Seckel, D.; Stanev, T.; Stoyanov, S.; Tilav, S.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA. [Bai, X.; Clem, J.; Evenson, P. A.; Gaisser, T. K.; Hussain, S.; Kuwabara, T.; Niessen, P.; Seckel, D.; Stanev, T.; Stoyanov, S.; Tilav, S.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA. [Ahlers, M.; Sarkar, S.] Univ Oxford, Dept Phys, Oxford OX1 3NP, England. [Madsen, J.; Spiczak, G. M.] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA. [Bohm, C.; Danninger, M.; Hulth, P. O.; Hultqvist, K.; Johansson, H.; Nygren, D. R.; Seo, S. H.; Walck, C.; Wikstrom, G.] Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden. [Bohm, C.; Danninger, M.; Hulth, P. O.; Hultqvist, K.; Johansson, H.; Nygren, D. R.; Seo, S. H.; Walck, C.; Wikstrom, G.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden. [Cowen, D. F.; Meszaros, P.; Movit, S. M.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Bradley, L.; Cowen, D. F.; DeYoung, T.; Foerster, M. M.; Fox, B. D.; Grant, D.; Ha, C.; Lafebre, S.; Meszaros, P.; Prikockis, M.; Rutledge, D.; Slipak, A.; Stephens, G.; Toale, P. A.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. [Botner, O.; Engdegard, O.; Hallgren, A.; Lundberg, J.; Olivo, M.; de los Heros, C. Perez; Pohl, A. C.] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden. [Duvoort, M. R.; Heise, J.; van Eijndhoven, N.] Univ Utrecht, SRON, Dept Phys & Astron, NL-3584 CC Utrecht, Netherlands. [Auffenberg, J.; Becker, K. -H.; Breder, D.; Gurtner, M.; Helbing, K.; Kampert, K. -H.; Karg, T.; Potthoff, N.; Semburg, B.; Tepe, A.] Univ Gesamthsch Wuppertal, Dept Phys, D-42119 Wuppertal, Germany. [Ackermann, M.; Alba, J. L. Bazo; Benabderrahmane, M. L.; Berdermann, J.; Bernardini, E.; Bolmont, J.; Boeser, S.; Franke, R.; Kislat, F.; Klepser, S.; Lauer, R.; Leich, H.; Majumdar, P.; Middell, E.; Nahnhauer, R.; Pieloth, D.; Satalecka, K.; Schlenstedt, S.; Spiering, C.; Sulanke, K. -H.; Tarasova, O.; Tluczykont, M.; Tosi, D.; Voigt, B.; Walter, M.; Wischnewski, R.] DESY, D-15735 Zeuthen, Germany. RP Vandenbroucke, J (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM justinv@stanford.edu RI Beatty, James/D-9310-2011; Vogt, Christian/E-2028-2012; Wiebusch, Christopher/G-6490-2012; Kowalski, Marek/G-5546-2012; Botner, Olga/A-9110-2013; Hallgren, Allan/A-8963-2013; Tjus, Julia/G-8145-2012; Auffenberg, Jan/D-3954-2014; Aguilar Sanchez, Juan Antonio/H-4467-2015; Maruyama, Reina/A-1064-2013; Sarkar, Subir/G-5978-2011; OI Beatty, James/0000-0003-0481-4952; Ter-Antonyan, Samvel/0000-0002-5788-1369; Schukraft, Anne/0000-0002-9112-5479; Wiebusch, Christopher/0000-0002-6418-3008; Auffenberg, Jan/0000-0002-1185-9094; Aguilar Sanchez, Juan Antonio/0000-0003-2252-9514; Maruyama, Reina/0000-0003-2794-512X; Sarkar, Subir/0000-0002-3542-858X; Perez de los Heros, Carlos/0000-0002-2084-5866; Hubert, Daan/0000-0002-4365-865X; Benabderrahmane, Mohamed Lotfi/0000-0003-4410-5886 FU US National Science Foundation; US National Science Foundation-Physics Division; University of Wisconsin Alumni Research Foundation; US Department of Energy; National Energy Research Scientific Computing Center; Louisiana Optical Network Initiative (LONI); Swedish Research Council; Swedish Polar Research Secretariat; Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF); Deutsche Forschungsgemeinschaft (DFG), Germany; Fund for Scientific Research (FNRS-FWO); Flanders Institute to encourage scientific and technological research in industry (IWT); Belgian Federal Science Policy Office (Belspo); Netherlands Organisation for Scientific Research (NWO); Marsden Fund, New Zealand; EU; Capes Foundation, Ministry of Education of Brazil FX We acknowledge the support from the following agencies: US National Science Foundation-Office of Polar Programs, US National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, US Department of Energy, and National Energy Research Scientific Computing Center, the Louisiana Optical Network Initiative (LONI) grid computing resources; Swedish Research Council, Swedish Polar Research Secretariat, and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Germany; Fund for Scientific Research (FNRS-FWO), Flanders Institute to encourage scientific and technological research in industry (IWT), Belgian Federal Science Policy Office (Belspo); the Netherlands Organisation for Scientific Research (NWO); Marsden Fund, New Zealand; M. Ribordy acknowledges the support of the SNF (Switzerland); A. Kappes and A. Gross acknowledge support by the EU Marie Curie OIF Program; J.P. Rodrigues acknowledge support by the Capes Foundation, Ministry of Education of Brazil. NR 36 TC 19 Z9 19 U1 0 U2 9 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 JUN-JUL PY 2010 VL 33 IS 5-6 BP 277 EP 286 DI 10.1016/j.astropartphys.2010.01.012 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 614GC UT WOS:000279042400001 ER PT J AU Buitink, S Huege, T Falcke, H Kuijpers, J AF Buitink, S. Huege, T. Falcke, H. Kuijpers, J. TI Simulation of radio emission from air showers in atmospheric electric fields SO ASTROPARTICLE PHYSICS LA English DT Article DE Cosmic rays; Extensive air showers; Atmospheric electricity; Radiation by moving charges; Radiation mechanisms; Polarization; Computer modeling and simulation ID MONTE-CARLO SIMULATIONS; RADIATION; BREAKDOWN AB We study the effect of atmospheric electric fields on the radio pulse emitted by cosmic ray air showers. Under fair weather conditions the dominant part of the radio emission is driven by the geomagnetic field. When the shower charges are accelerated and deflected in an electric field additional radiation is emitted. We simulate this effect with the Monte Carlo code REAS2, using CORSIKA-simulated showers as input. In both codes a routine has been implemented that treats the effect of the electric field on the shower particles. We find that the radio pulse is significantly altered in background fields of the order of similar to 100 V/cm and higher. Practically, this means that air showers passing through thunderstorms emit radio pulses that are not a reliable measure for the shower energy. Under other weather circumstances significant electric field effects are expected to occur rarely, but nimbostratus clouds can harbor fields that are large enough. In general, the contribution of the electric field to the radio pulse has polarization properties that are different from the geomagnetic pulse. In order to filter out radio pulses that have been affected by electric field effects, radio air shower experiments should keep weather information and perform full polarization measurements of the radio signal. (C) 2010 Elsevier B.V. All rights reserved. C1 [Buitink, S.; Falcke, H.; Kuijpers, J.] Radboud Univ Nijmegen, Dept Astrophys IMAPP, NL-6500 GL Nijmegen, Netherlands. [Buitink, S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Huege, T.] Karlsruher Inst Technol, Inst Kernphys, D-76021 Karlsruhe, Germany. RP Buitink, S (reprint author), Radboud Univ Nijmegen, Dept Astrophys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands. EM sbuitink@lbl.gov RI Falcke, Heino/H-5262-2012; OI Falcke, Heino/0000-0002-2526-6724; Buitink, Stijn/0000-0002-6177-497X NR 26 TC 11 Z9 11 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-6505 J9 ASTROPART PHYS JI Astropart Phys. PD JUN-JUL PY 2010 VL 33 IS 5-6 BP 296 EP 306 DI 10.1016/j.astropartphys.2010.02.010 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 614GC UT WOS:000279042400004 ER PT J AU Dilday, B Bassett, B Becker, A Bender, R Castander, F Cinabro, D Frieman, JA Galbany, L Garnavich, P Goobar, A Hopp, U Ihara, Y Jha, SW Kessler, R Lampeitl, H Marriner, J Miquel, R Molla, M Nichol, RC Nordin, J Riess, AG Sako, M Schneider, DP Smith, M Sollerman, J Wheeler, JC Ostman, L Bizyaev, D Brewington, H Malanushenko, E Malanushenko, V Oravetz, D Pan, KK Simmons, A Snedden, S AF Dilday, Benjamin Bassett, Bruce Becker, Andrew Bender, Ralf Castander, Francisco Cinabro, David Frieman, Joshua A. Galbany, Lluis Garnavich, Peter Goobar, Ariel Hopp, Ulrich Ihara, Yutaka Jha, Saurabh W. Kessler, Richard Lampeitl, Hubert Marriner, John Miquel, Ramon Molla, Mercedes Nichol, Robert C. Nordin, Jakob Riess, Adam G. Sako, Masao Schneider, Donald P. Smith, Mathew Sollerman, Jesper Wheeler, J. Craig Ostman, Linda Bizyaev, Dmitry Brewington, Howard Malanushenko, Elena Malanushenko, Viktor Oravetz, Dan Pan, Kaike Simmons, Audrey Snedden, Stephanie TI A MEASUREMENT OF THE RATE OF TYPE Ia SUPERNOVAE IN GALAXY CLUSTERS FROM THE SDSS-II SUPERNOVA SURVEY SO ASTROPHYSICAL JOURNAL LA English DT Article DE supernovae: general ID DIGITAL SKY SURVEY; DATA RELEASE; INTERGALACTIC SUPERNOVAE; STAR-FORMATION; LEGACY SURVEY; TELESCOPE; SEARCH; SYSTEM; MAGNITUDES; PHOTOMETRY AB We present measurements of the Type Ia supernova (SN) rate in galaxy clusters based on data from the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. The cluster SN Ia rate is determined from 9 SN events in a set of 71 C4 clusters at z <= 0.17 and 27 SN events in 492 maxBCG clusters at 0.1 <= z <= 0.3. We find values for the cluster SN Ia rate of (0.37(-0.12-0.01)(+0.17+0.01)) SNur h(2) and (0.55(-0.11-0.01)(+0.13+0.02)) SNur h(2) (SNux = 10(-12) Lx(circle dot)(-1)yr(-1)) in C4 and maxBCG clusters, respectively, where the quoted errors are statistical and systematic, respectively. The SN rate for early-type galaxies is found to be (0.31(-0.12-0.01)(+0.18+0.01)) SNur h(2) and (0.49(-0.11-0.01)(+0.15+0.02)) SNur h(2) in C4 and maxBCG clusters, respectively. The SN rate for the brightest cluster galaxies (BCG) is found to be (2.04(-1.11-0.04)(+1.99+0.07)) SNur h(2) and (0.36(-0.30-0.01)(+0.84+0.01)) SNur h(2) in C4 and maxBCG clusters, respectively. The ratio of the SN Ia rate in cluster early-type galaxies to that of the SN Ia rate in field early-type galaxies is 1.94(-0.91-0.015)(+1.31+0.043) and 3.02(-1.03-0.048)(+1.31+0.062), for C4 and maxBCG clusters, respectively. The SN rate in galaxy clusters as a function of redshift, which probes the late time SN Ia delay distribution, shows only weak dependence on redshift. Combining our current measurements with previous measurements, we fit the cluster SN Ia rate data to a linear function of redshift, and find r(L) =[(0.49(-0.14)(+0.15))+(0.91(-0.81)(+0.85)) x z] SNuB h(2). A comparison of the radial distribution of SNe in cluster to field early-type galaxies shows possible evidence for an enhancement of the SN rate in the cores of cluster early-type galaxies. With an observation of at most three hostless, intra-cluster SNe Ia, we estimate the fraction of cluster SNe that are hostless to be (9.4(-5.1)(+8.3))%. C1 [Dilday, Benjamin; Jha, Saurabh W.] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Dilday, Benjamin] Univ Chicago, Dept Phys, Chicago, IL 60637 USA. [Dilday, Benjamin; Kessler, Richard] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Bassett, Bruce; Smith, Mathew] Univ Cape Town, Dept Math & Appl Math, ZA-7701 Rondebosch, South Africa. [Bassett, Bruce] S African Astron Observ, ZA-7935 Observatory, South Africa. [Becker, Andrew] Univ Washington, Dept Astron, Seattle, WA 98195 USA. [Bender, Ralf; Hopp, Ulrich] Max Planck Inst Extraterr Phys, D-85748 Munich, Germany. [Bender, Ralf; Hopp, Ulrich] Univ Sternwarte Munich, D-81679 Munich, Germany. [Castander, Francisco] CSIC, IEEC, Inst Ciencies Espai, Barcelona, Spain. [Cinabro, David] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48202 USA. [Frieman, Joshua A.; Kessler, Richard] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Frieman, Joshua A.; Marriner, John] Fermilab Natl Accelerator Lab, Ctr Astrophys, Batavia, IL 60510 USA. [Galbany, Lluis; Miquel, Ramon] Inst Fis Altes Energies, Barcelona, Spain. [Garnavich, Peter] Univ Notre Dame, Notre Dame, IN 46556 USA. [Goobar, Ariel; Sollerman, Jesper] Stockholm Univ, Dept Astron, Oskar Klein Ctr, SE-10691 Stockholm, Sweden. [Goobar, Ariel; Nordin, Jakob; Ostman, Linda] Stockholm Univ, Dept Phys, Albanova Univ Ctr, S-10691 Stockholm, Sweden. [Ihara, Yutaka] Univ Tokyo, Grad Sch Sci, Inst Astron, Tokyo 1810015, Japan. [Lampeitl, Hubert; Nichol, Robert C.; Smith, Mathew] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England. [Miquel, Ramon] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain. [Molla, Mercedes] Ctr Invest Energet Medioambientales & Tecnol, Madrid, Spain. [Riess, Adam G.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Riess, Adam G.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. [Sako, Masao] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Schneider, Donald P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Sollerman, Jesper] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-1168 Copenhagen, Denmark. [Wheeler, J. Craig] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA. [Bizyaev, Dmitry; Brewington, Howard; Malanushenko, Elena; Malanushenko, Viktor; Oravetz, Dan; Pan, Kaike; Simmons, Audrey; Snedden, Stephanie] Apache Point Observ, Sunspot, NM 88349 USA. RP Dilday, B (reprint author), Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA. EM bdilday@physics.rutgers.edu RI Molla, Mercedes/I-3189-2015; Galbany, Lluis/A-8963-2017; OI Miquel, Ramon/0000-0002-6610-4836; Molla, Mercedes/0000-0003-0817-581X; Galbany, Lluis/0000-0002-1296-6887; Bassett, Bruce/0000-0001-7700-1069; Sollerman, Jesper/0000-0003-1546-6615 FU Alfred P. Sloan Foundation; American Museum of Natural History; Astrophysical Institute Potsdam; University of Basel; University of Cambridge; Case Western Reserve University; University of Chicago; Drexel University; Fermilab; Institute for Advanced Study; Japan Participation Group; Johns Hopkins University; Joint Institute for Nuclear Astrophysics; Kavli Institute for Particle Astrophysics and Cosmology; Korean Scientist Group; Chinese Academy of Sciences (LAMOST); Los Alamos National Laboratory; Max-Planck-Institute for Astronomy (MPIA); Max-Planck-Institute for Astrophysics (MPA); New Mexico State University; Ohio State University; University of Pittsburgh; University of Portsmouth; Princeton University; United States Naval Observatory; University of Washington; National Science Foundation; U.S. Department of Energy [DE-FG02-08ER41562]; National Aeronautics and Space Administration; Japanese Monbukagakusho; Max Planck Society; Higher Education Funding Council for England; Kavli Institute for Cosmological Physics at the University of Chicago [NSF PHY-0114422, NSF PHY-0551142] FX Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington. This work is based in part on observations made at the following telescopes. The Hobby-Eberly Telescope (HET) is a joint project of the University of Texas at Austin, the Pennsylvania State University, Stanford University, Ludwig-Maximillians-Universit at Munchen, and Georg-August-Universit at Gottingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly. The Marcario Low-Resolution Spectrograph is named for Mike Marcario of High Lonesome Optics, who fabricated several optical elements for the instrument but died before its completion; it is a joint project of the Hobby-Eberly Telescope partnership and the Instituto de Astronomia de la Universidad Nacional Autonoma de Mexico. The Apache Point Observatory 3.5 m telescope is owned and operated by the Astrophysical Research Consortium. We thank the observatory director, Suzanne Hawley, and site manager, Bruce Gillespie, for their support of this project. The Subaru Telescope is operated by the National Astronomical Observatory of Japan. The William Herschel Telescope is operated by the Isaac Newton Group, on the island of La Palma in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. Based on observations made with ESO Telescopes at the La Silla or Paranal Observatories under programme IDs 77.A-0437, 78.A-0325, 79.A-0715, and 80.A-0024. Based on observations made with the Nordic Optical Telescope, operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. Kitt Peak National Observatory, National Optical Astronomy Observatory, is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation. Based partially on observations made with the Italian Telescopio Nazionale Galileo (TNG) operated on the island of La Palma by the Fundacion Galileo Galilei of the INAF (Istituto Nazionale di Astrofisica) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias.; This work was supported in part by the Kavli Institute for Cosmological Physics at the University of Chicago trough grants NSF PHY-0114422 and NSF PHY-0551142 and an endowment from the Kavli Foundation and its founder Fred Kavli. This work was also partially supported by the US Department of Energy through grant DE-FG02-08ER41562 to Rutgers University (PI: S.W.J.). We thank Chris Miller for making the extended version of the C4 cluster catalog available. We thank Ben Koester for providing a catalog of cluster member galaxies for the maxBCG clusters. B. D. thanks B. Koester and S. Hansen for many invaluable discussions. NR 57 TC 27 Z9 27 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JUN 1 PY 2010 VL 715 IS 2 BP 1021 EP 1035 DI 10.1088/0004-637X/715/2/1021 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 595VR UT WOS:000277642100026 ER PT J AU Almgren, AS Beckner, VE Bell, B Day, MS Howell, LH Joggerst, CC Lijewski, MJ Nonaka, A Singer, M Zingale, M AF Almgren, A. S. Beckner, V. E. Bell, B. Day, M. S. Howell, L. H. Joggerst, C. C. Lijewski, M. J. Nonaka, A. Singer, M. Zingale, M. TI CASTRO: A NEW COMPRESSIBLE ASTROPHYSICAL SOLVER. I. HYDRODYNAMICS AND SELF-GRAVITY SO ASTROPHYSICAL JOURNAL LA English DT Article DE equation of state; gravitation; hydrodynamics; methods: numerical; nuclear reactions, nucleosynthesis, abundances ID HYPERBOLIC CONSERVATION-LAWS; ADAPTIVE MESH REFINEMENT; RAYLEIGH-TAYLOR INSTABILITY; PIECEWISE PARABOLIC METHOD; SYSTEMS; SIMULATIONS; SUPERNOVAE; EQUATIONS; ACCURACY; ENERGY AB We present a new code, CASTRO, that solves the multicomponent compressible hydrodynamic equations for astrophysical flows including self-gravity, nuclear reactions, and radiation. CASTRO uses an Eulerian grid and incorporates adaptive mesh refinement (AMR). Our approach to AMR uses a nested hierarchy of logically rectangular grids with simultaneous refinement in both space and time. The radiation component of CASTRO will be described in detail in the next paper, Part II, of this series. C1 [Almgren, A. S.; Beckner, V. E.; Bell, B.; Day, M. S.; Lijewski, M. J.; Nonaka, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA. [Howell, L. H.; Singer, M.] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. [Joggerst, C. C.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA. [Joggerst, C. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Zingale, M.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Almgren, AS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA. OI Zingale, Michael/0000-0001-8401-030X FU U.S. Department of Energy [DE-AC02-05CH11231, DE-AC52-07NA27344]; Lawrence Livermore National Lab [B568673, B574691, B582735] FX We thank Alan Calder for useful discussions on test problems and Stan Woosley for numerous invaluable interactions. In comparing to other codes, we benefited from helpful discussions with Brian O'Shea about Enzo, Paul Ricker about gravity in FLASH, and Michael Clover about RAGE. Finally, we thank Haitao Ma, Jason Nordhaus, and Ken Chen for being patient early users of CASTRO. The work at LBNL was supported by the Office of High Energy Physics and the Office of Mathematics, Information, and Computational Sciences as part of the SciDAC Program under the U.S. Department of Energy under contract No. DE-AC02-05CH11231. The work performed at LLNL was under the auspices of the U. S. Department of Energy under contract No. DE-AC52-07NA27344. M.Z. was supported by Lawrence Livermore National Lab under contracts B568673, B574691, and B582735. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. This research used resources of the Oak Ridge Leadership Computational Facility (OLCF), which is supported by the Office of Science of the Department of Energy under Contract DE-AC05-00OR22725. NR 49 TC 93 Z9 93 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD JUN 1 PY 2010 VL 715 IS 2 BP 1221 EP 1238 DI 10.1088/0004-637X/715/2/1221 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 595VR UT WOS:000277642100039 ER PT J AU Hoffman, RD Sheets, SA Burke, JT Scielzo, ND Rauscher, T Norman, EB Tumey, S Brown, TA Grant, PG Hurst, AM Phair, L Stoyer, MA Wooddy, T Fisker, JL Bleuel, D AF Hoffman, R. D. Sheets, S. A. Burke, J. T. Scielzo, N. D. Rauscher, T. Norman, E. B. Tumey, S. Brown, T. A. Grant, P. G. Hurst, A. M. Phair, L. Stoyer, M. A. Wooddy, T. Fisker, J. L. Bleuel, D. TI REACTION RATE SENSITIVITY OF Ti-44 PRODUCTION IN MASSIVE STARS AND IMPLICATIONS OF A THICK TARGET YIELD MEASUREMENT OF Ca-40(alpha, gamma)Ti-44 SO ASTROPHYSICAL JOURNAL LA English DT Article DE nuclear reactions, nucleosynthesis, abundances; supernovae: general ID THERMONUCLEAR REACTION-RATES; STATISTICAL-MODEL CALCULATIONS; ASTROPHYSICAL REACTION-RATES; GAMMA-RAY; CROSS-SECTIONS; CASSIOPEIA-A; NUCLEOSYNTHESIS; SUPERNOVAE; NUCLEAR; CONSTRAINTS AB We evaluate two dominant nuclear reaction rates and their uncertainties that affect Ti-44 production in explosive nucleosynthesis. Experimentally we develop thick target yields for the Ca-40(alpha, gamma)Ti-44 reaction at E alpha = 4.13, 4.54, and 5.36 MeV using gamma-ray spectroscopy. At the highest beam energy, we also performed an activation measurement which agrees with the thick target result. From the measured yields a stellar reaction rate was developed that is smaller than current statistical-model calculations and recent experimental results, which would suggest lower Ti-44 production in scenarios for the alpha-rich freezeout. Special attention has been paid to assessing realistic uncertainties of stellar reaction rates produced from a combination of experimental and theoretical cross sections. With such methods, we also develop a re-evaluation of the Ti-44(alpha, p)V-47 reaction rate. Using these two rates we carry out a sensitivity survey of Ti-44 synthesis in eight expansions representing peak temperature and density conditions drawn from a suite of recent supernova explosion models. Our results suggest that the current uncertainty in these two reaction rates could lead to as large an uncertainty in Ti-44 synthesis as that produced by different treatments of stellar physics. C1 [Hoffman, R. D.; Sheets, S. A.; Burke, J. T.; Scielzo, N. D.; Norman, E. B.; Tumey, S.; Brown, T. A.; Grant, P. G.; Hurst, A. M.; Stoyer, M. A.; Wooddy, T.; Fisker, J. L.; Bleuel, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Norman, E. B.; Phair, L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Norman, E. B.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. [Rauscher, T.] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland. RP Hoffman, RD (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA. RI Rauscher, Thomas/D-2086-2009 OI Rauscher, Thomas/0000-0002-1266-0642 FU U.S. Department of Energy [DE-AC52-07NA27344, W-7405-Eng-48]; DOE [DC-FC02-01ER41176]; Swiss National Science Foundation [2000-105328] FX We thank Irshad Ahmad and John Greene of Argonne National Laboratory for preparing the 44Ti calibration source. We also thank Cindy Conrado and Kelly Burke for technical assistance. This work was performed under the auspices of the U.S. Department of Energy at Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and at the University of California, Lawrence Berkeley National Laboratory under Contract No. W-7405-Eng-48. Additional support was granted through the DOE Scientific Discovery through Advanced Computing program (DC-FC02-01ER41176), and by the Swiss National Science Foundation (grant 2000-105328). NR 62 TC 14 Z9 14 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JUN 1 PY 2010 VL 715 IS 2 BP 1383 EP 1399 DI 10.1088/0004-637X/715/2/1383 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 595VR UT WOS:000277642100053 ER PT J AU Crepp, J Serabyn, E Carson, J Ge, J Kravchenko, I AF Crepp, J. Serabyn, E. Carson, J. Ge, J. Kravchenko, I. TI ON-SKY DEMONSTRATION OF A LINEAR BAND-LIMITED MASK WITH APPLICATION TO VISUAL BINARY STARS SO ASTROPHYSICAL JOURNAL LA English DT Article DE binaries: visual; instrumentation: adaptive optics; instrumentation: high angular resolution; planetary systems ID EPSILON-ERIDANI; PLANET FORMATION; GIANT PLANETS; CIRCUMBINARY PLANETS; EXTRASOLAR PLANETS; ORBITAL ELEMENTS; MULTIPLE SYSTEMS; IMAGE MASKS; DQ TAU; CORONAGRAPH AB We have designed and built the first band-limited coronagraphic mask used for ground-based high-contrast imaging observations. The mask resides in the focal plane of the near-infrared camera PHARO at the Palomar Hale telescope and receives a well-corrected beam from an extreme adaptive optics system. Its performance on-sky with single stars is comparable to current state-of-the-art instruments: contrast levels of similar to 10(-5) or better at 0 ''.8 in K-s after post-processing, depending on how well non-common-path errors are calibrated. However, given the mask's linear geometry, we are able to conduct additional unique science observations. Since the mask does not suffer from pointing errors down its long axis, it can suppress the light from two different stars simultaneously, such as the individual components of a spatially resolved binary star system, and search for faint tertiary companions. In this paper, we present the design of the mask, the science motivation for targeting binary stars, and our preliminary results, including the detection of a candidate M-dwarf tertiary companion orbiting the visual binary star HIP 48337, which we are continuing to monitor with astrometry to determine its association. C1 [Crepp, J.; Ge, J.; Kravchenko, I.] Univ Florida, Gainesville, FL 32611 USA. [Crepp, J.] CALTECH, Pasadena, CA 91125 USA. [Serabyn, E.; Carson, J.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. [Carson, J.] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Carson, J.] Coll Charleston, Charleston, SC 29424 USA. [Kravchenko, I.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Crepp, J (reprint author), Univ Florida, 211 Bryant Space Sci Ctr, Gainesville, FL 32611 USA. EM jcrepp@astro.caltech.edu RI Kravchenko, Ivan/K-3022-2015 OI Kravchenko, Ivan/0000-0003-4999-5822 FU NASA [NNG06GC49G]; UCF-UF-SRI program FX We thank Karl Stapelfeldt for support at the JPL microdevices lab to cut and clean the BLM prior to installation, and Dimitri Mawet for helpful conversations at the observatory. J.C. acknowledges support from the NASA postdoctoral program. This work was funded by the UCF-UF-SRI program and NASA grant NNG06GC49G. Part of this research was conducted at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. NR 71 TC 9 Z9 9 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JUN 1 PY 2010 VL 715 IS 2 BP 1533 EP 1538 DI 10.1088/0004-637X/715/2/1533 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 595VR UT WOS:000277642100064 ER PT J AU Belczynski, K Dominik, M Bulik, T O'Shaughnessy, R Fryer, C Holz, DE AF Belczynski, Krzysztof Dominik, Michal Bulik, Tomasz O'Shaughnessy, Richard Fryer, Chris Holz, Daniel E. TI THE EFFECT OF METALLICITY ON THE DETECTION PROSPECTS FOR GRAVITATIONAL WAVES SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE binaries: close; gravitation; stars: evolution; stars: neutron ID BLACK-HOLE; EVOLUTION; BINARY; MASS; MERGER; PULSAR; STARS; SYSTEMS; MODELS; ORIGIN AB Data from the Sloan Digital Sky Survey (similar to 300,000 galaxies) indicate that recent star formation (within the last 1 billion years) is bimodal: half of the stars form from gas with high amounts of metals (solar metallicity) and the other half form with small contribution of elements heavier than helium (similar to 10%-30% solar). Theoretical studies of mass loss from the brightest stars derive significantly higher stellar-origin black hole (BH) masses (similar to 30-80 M-circle dot) than previously estimated for sub-solar compositions. We combine these findings to estimate the probability of detecting gravitational waves (GWs) arising from the inspiral of double compact objects. Our results show that a low-metallicity environment significantly boosts the formation of double compact object binaries with at least one BH. In particular, we find the GW detection rate is increased by a factor of 20 if the metallicity is decreased from solar (as in all previous estimates) to a 50-50 mixture of solar and 10% solar metallicity. The current sensitivity of the two largest instruments to neutron star-neutron star (NS-NS) binary inspirals (VIRGO: similar to 9 Mpc; LIGO: similar to 18) is not high enough to ensure a first detection. However, our results indicate that if a future instrument increased the sensitivity to similar to 50-100 Mpc, a detection of GWs would be expected within the first year of observation. It was previously thought that NS-NS inspirals were the most likely source for GW detection. Our results indicate that BH-BH binaries are similar to 25 times more likely sources than NS-NS systems and that we are on the cusp of GW detection. C1 [Belczynski, Krzysztof; Fryer, Chris; Holz, Daniel E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Belczynski, Krzysztof; Dominik, Michal; Bulik, Tomasz] Univ Warsaw, Astron Observ, PL-00478 Warsaw, Poland. [O'Shaughnessy, Richard] Penn State Univ, Dept Phys, Davey Lab 104, University Pk, PA 16802 USA. RP Belczynski, K (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. OI O'Shaughnessy, Richard/0000-0001-5832-8517 FU Polish MSHE [N N203 302835, N N203 511238]; LANL [DE-AC52-06NA25396] FX We thank Jarrod Hurley, Peter Eggleton, and Ilya Mandel for useful discussions. K. B., T. B., and M. D. acknowledge the partial support from the Polish MSHE grants N N203 302835 and N N203 511238. K. B., C. F., and D. H. acknowledge support from LANL under contract no. DE-AC52-06NA25396. NR 34 TC 98 Z9 98 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD JUN 1 PY 2010 VL 715 IS 2 BP L138 EP L141 DI 10.1088/2041-8205/715/2/L138 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 608NU UT WOS:000278591800016 ER PT J AU Grzedzielski, S Bzowski, M Czechowski, A Funsten, HO McComas, DJ Schwadron, NA AF Grzedzielski, S. Bzowski, M. Czechowski, A. Funsten, H. O. McComas, D. J. Schwadron, N. A. TI A POSSIBLE GENERATION MECHANISM FOR THE IBEX RIBBON FROM OUTSIDE THE HELIOSPHERE SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE atomic processes; ISM: atoms; ISM: bubbles; ISM: clouds; ISM: structure; Sun: heliosphere ID INTERSTELLAR BOUNDARY EXPLORER; SOLAR-WIND; OUTER HELIOSPHERE; LOCAL BUBBLE; CLOUD; IONIZATION; HELIUM; MODELS; GAS AB The brightest and most surprising feature in the first all-sky maps of energetic neutral atom (ENA) emissions (0.2-6 keV) produced by the Interstellar Boundary Explorer (IBEX) is an almost circular ribbon of a similar to 140 degrees. opening angle, centered at (l, b) = (33 degrees, 55 degrees), covering the part of the celestial sphere with the lowest column densities of the Local Interstellar Cloud (LIC). We propose a novel interpretation of the IBEX results based on the idea of ENA produced by charge exchange between the neutral H atoms at the nearby edge of the LIC and the hot protons of the Local Bubble (LB). These ENAs can reach the Sun's vicinity because of very low column density of the intervening LIC material. We show that a plane-parallel or slightly curved interface layer of contact between the LIC H atoms (n(H) = 0.2 cm(-3), T = 6000-7000 K) and the LB protons (n(p) = 0.005 cm(-3), T similar to 10(6) K), together with an indirect contribution coming from multiply scattered ENAs from the LB, may be able to explain both the shape of the ribbon and the observed intensities, provided that the edge is <(500-2000) AU away, the LIC proton density is (correspondingly) < (0.04-0.01) cm(-3), and the LB contains similar to 1% of non-thermal protons over the IBEX energy range. If this model is correct, then IBEX, for the first time, has imaged in ENAs a celestial object beyond the confines of the heliosphere and can directly diagnose the plasma conditions in the LB. C1 [Grzedzielski, S.; Bzowski, M.; Czechowski, A.] Space Res Ctr PAS, PL-00716 Warsaw, Poland. [Funsten, H. O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [McComas, D. J.] SW Res Inst, San Antonio, TX 78228 USA. [McComas, D. J.] Univ Texas San Antonio, San Antonio, TX 78249 USA. [Schwadron, N. A.] Boston Univ, Boston, MA 02215 USA. RP Grzedzielski, S (reprint author), Space Res Ctr PAS, Bartycka 18A, PL-00716 Warsaw, Poland. RI Funsten, Herbert/A-5702-2015 OI Funsten, Herbert/0000-0002-6817-1039 FU Polish MNiSW [N-NS-1260-11-09, N-N203-513038]; IBEX Mission FX The SRC PAS authors were supported by the Polish MNiSW grants N-NS-1260-11-09 and N-N203-513038. Work on this study by the US authors was supported by the IBEX Mission as a part of NASA's Explorer Program. NR 27 TC 33 Z9 33 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 EI 2041-8213 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD JUN 1 PY 2010 VL 715 IS 2 BP L84 EP L87 DI 10.1088/2041-8205/715/2/L84 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 608NU UT WOS:000278591800005 ER PT J AU Nonaka, A Almgren, AS Bell, JB Lijewski, MJ Malone, CM Zingale, M AF Nonaka, A. Almgren, A. S. Bell, J. B. Lijewski, M. J. Malone, C. M. Zingale, M. TI MAESTRO: AN ADAPTIVE LOW MACH NUMBER HYDRODYNAMICS ALGORITHM FOR STELLAR FLOWS SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article DE convection; hydrodynamics; methods: numerical; nuclear reactions; nucleosynthesis; abundances; supernovae: general; white dwarfs ID HYPERBOLIC CONSERVATION-LAWS; IA SUPERNOVAE; PROJECTION METHOD; CARBON IGNITION; MESH REFINEMENT; SIMULATIONS; CONVECTION; EVOLUTION; RUNAWAY; ENERGY AB Many astrophysical phenomena are highly subsonic, requiring specialized numerical methods suitable for long-time integration. In a series of earlier papers we described the development of MAESTRO, a low Mach number stellar hydrodynamics code that can be used to simulate long-time, low-speed flows that would be prohibitively expensive to model using traditional compressible codes. MAESTRO is based on an equation set derived using low Mach number asymptotics; this equation set does not explicitly track acoustic waves and thus allows a significant increase in the time step. MAESTRO is suitable for two-and three-dimensional local atmospheric flows as well as three-dimensional full-star flows. Here, we continue the development of MAESTRO by incorporating adaptive mesh refinement (AMR). The primary difference between MAESTRO and other structured grid AMR approaches for incompressible and low Mach number flows is the presence of the time-dependent base state, whose evolution is coupled to the evolution of the full solution. We also describe how to incorporate the expansion of the base state for full-star flows, which involves a novel mapping technique between the one-dimensional base state and the Cartesian grid, as well as a number of overall improvements to the algorithm. We examine the efficiency and accuracy of our adaptive code, and demonstrate that it is suitable for further study of our initial scientific application, the convective phase of Type Ia supernovae. C1 [Nonaka, A.; Almgren, A. S.; Bell, J. B.; Lijewski, M. J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA. [Malone, C. M.; Zingale, M.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Nonaka, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA. OI Zingale, Michael/0000-0001-8401-030X FU DOE Office of Mathematics, Information, and Computational Sciences under U.S. Department of Energy [DE-AC02-05CH11231]; DOE/Office of Nuclear Physics [DE-FG02-06ER41448]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX We thank Frank Timmes for making his equation of state routines publicly available, and for useful discussions regarding thermodynamics. The work at LBNL was supported by the SciDAC Program of the DOE Office of Mathematics, Information, and Computational Sciences under the U.S. Department of Energy under contract No. DE-AC02-05CH11231. The work at Stony Brook was supported by a DOE/Office of Nuclear Physics Outstanding Junior Investigator award, grant no. DE-FG02-06ER41448, to Stony Brook. This research used resources of the National Energy Research Scientific Computing Center (NERSC), which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 27 TC 35 Z9 35 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0067-0049 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD JUN PY 2010 VL 188 IS 2 BP 358 EP 383 DI 10.1088/0067-0049/188/2/358 PG 26 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 613HG UT WOS:000278969400002 ER PT J AU Liu, XH Zhang, Y Cheng, SH Xing, J Zhang, QA Streets, DG Jang, C Wang, WX Hao, JM AF Liu, Xiao-Huan Zhang, Yang Cheng, Shu-Hui Xing, Jia Zhang, Qiang Streets, David G. Jang, Carey Wang, Wen-Xing Hao, Ji-Ming TI Understanding of regional air pollution over China using CMAQ, part I performance evaluation and seasonal variation SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE CMAQ; Model evaluation; Seasonality; China; Sensitivity to horizontal grid resolution ID GRID RESOLUTION; OZONE; MODEL; SENSITIVITY; QUALITY; PREDICTIONS; EMISSIONS; CHEMISTRY; GAMES AB The U.S. EPA Models-3 Community Multiscale Air Quality (CMAQ) modeling system with the process analysis tool is applied to China to study the seasonal variations and formation mechanisms of major air pollutants. Simulations show distinct seasonal variations, with higher surface concentrations of sulfur dioxide (SO2), nitrogen dioxide (NO2), and particulate matter with aerodynamic diameter less than or equal to 10 mu m (PM10), column mass of carbon monoxide (CO) and NO2, and aerosol optical depth (AOD) in winter and fall than other seasons, and higher 1-h O-3 and troposphere ozone residual (TOR) in spring and summer than other seasons. Higher concentrations of most species occur over the eastern China, where the air pollutant emissions are the highest in China. Compared with surface observations, the simulated SO2, NO2, and PM10 concentrations are underpredicted throughout the year with NMBs of up to -51.8%, -32.0%, and -54.2%, respectively. Such large discrepancies can be attributed to the uncertainties in emissions, simulated meteorology, and deviation of observations based on air pollution index. Max. 1-h O-3 concentrations in Jan. and Jul. at 36-km are overpredicted with NMBs of 12.0% and 19.3% and agree well in Apr. and Oct. Simulated column variables can capture the high concentrations over the eastern China and low values in the central and western China. Underpredictions occur over the northeastern China for column CO in Apr., TOR in Jul., and AODs in both Apr. and Jul.; and overpredictions occur over the eastern China for column CO in Oct., NO2 in Jan. and Oct., and AODs in Jan. and Oct. The simulations at 12-km show a finer structure in simulated concentrations than that at 36-km over higher polluted areas, but do not always give better performance than 36-km. Surface concentrations are more sensitive to grid resolution than column variables except for column NO2, with higher sensitivity over mountain and coastal areas than other regions. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Liu, Xiao-Huan; Cheng, Shu-Hui; Wang, Wen-Xing] Shandong Univ, Jinan 250100, Shandong, Peoples R China. [Liu, Xiao-Huan; Zhang, Yang; Cheng, Shu-Hui] N Carolina State Univ, Raleigh, NC 27695 USA. [Xing, Jia; Hao, Ji-Ming] Tsinghua Univ, Beijing 100084, Peoples R China. [Zhang, Qiang; Streets, David G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Jang, Carey] US EPA, Res Triangle Pk, NC 27711 USA. RP Zhang, Y (reprint author), NCSU, Dept Marine Earth & Atmospher Sci, Campus Box 8208, Raleigh, NC 27606 USA. EM yang_zhang@ncsu.edu RI Zhang, Qiang/D-9034-2012; xing, jia/O-1784-2014; OI Streets, David/0000-0002-0223-1350 FU U.S. NSF [Atm-0348819]; U.S. EPA; Shandong University in China; China Scholarship Council at Shandong University in China FX The authors thank Xin-Yu Wen and Yao-Sheng Chen at North Carolina State University for post-processing and analysis of satellite data; Peng-Ju Xu at Shandong University for providing the 03 monitoring data at Mt Tai. The O3 data at 3 sites in Japan were provided by World Data Center for Greenhouse Gases. This work was funded by the U.S. NSF Career Award No. Atm-0348819, the U.S. EPA, and Shandong University in China. The meteorological simulations were funded by China Scholarship Council at Shandong University in China and the U.S. NSF Career Award No. Atm-0348819 at NCSU. NR 27 TC 61 Z9 76 U1 8 U2 52 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 JUN PY 2010 VL 44 IS 20 BP 2415 EP 2426 DI 10.1016/j.atmosenv.2010.03.035 PG 12 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 622FL UT WOS:000279646600004 ER PT J AU Aung, K Zhang, XC Hu, JP AF Aung, Kyaw Zhang, Xinchun Hu, Jianping TI Peroxisome division and proliferation in plants SO BIOCHEMICAL SOCIETY TRANSACTIONS LA English DT Article; Proceedings Paper CT Annual Symposium of the Biochemical-Society CY DEC 16-18, 2009 CL Univ Chester, Chester, ENGLAND SP Biochem Soc HO Univ Chester DE Arabidopsis; dynamin-related protein 5b (DRP5B); light; mitochondrion; peroxisomal and mitochondrial division 1 (PMD1); peroxisome division and proliferation ID DYNAMIN-LIKE PROTEIN; ARABIDOPSIS LEAF PEROXISOMES; WD REPEAT PROTEIN; MITOCHONDRIAL FISSION; SACCHAROMYCES-CEREVISIAE; CHLOROPLAST DIVISION; MAMMALIAN-CELLS; PLASTID DIVISION; DNM1P; NUMBER AB Peroxisomes are eukaryotic organelles with crucial functions in development. Plant peroxisomes participate in various metabolic processes, some of which are co-operated by peroxisomes and other organelles, such as mitochondria and chloroplasts. Defining the complete picture of how these essential organelles divide and proliferate will be instrumental in understanding how the dynamics of peroxisome abundance contribute to changes in plant physiology and development. Research in Arabic/oasis thaliana has identified several evolutionarily conserved major components of the peroxisome division machinery, including five isoforms of PEROXIN11 proteins (PEX11), two dynamin-related proteins (DRP3A and DRP3B) and two FISSION1 proteins (FIS1A/BIGYIN and FIS1B). Recent studies in our laboratory have also begun to uncover plant-specific factors. DRP5B is a dual-localized protein that is involved in the division of both chloroplasts and peroxisomes, representing an invention of the plant/algal lineage in organelle division. In addition, PMD1 (peroxisomal and mitochondrial division 1) is a plant-specific protein tail anchored to the outer surface of peroxisomes and mitochondria, mediating the division and/or positioning of these organelles. Lastly, light induces peroxisome proliferation in dark-grown Arabic/oasis seedlings, at least in part, through activating the PEX11b gene. The far-red light receptor phyA (phytochrome A) and the transcription factor HYH (HY5 homologue) are key components in this signalling pathway. In summary, pathways for the division and proliferation of plant peroxisomes are composed of conserved and plant-specific factors. The sharing of division proteins by peroxisomes, mitochondria and chloroplasts is also suggesting possible co-ordination in the division of these metabolically associated plant organelles. C1 [Aung, Kyaw; Hu, Jianping] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. [Aung, Kyaw; Hu, Jianping] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA. [Zhang, Xinchun; Hu, Jianping] Michigan State Univ, Grad Program Genet, E Lansing, MI 48824 USA. RP Hu, JP (reprint author), Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. NR 57 TC 6 Z9 7 U1 0 U2 10 PU PORTLAND PRESS LTD PI LONDON PA THIRD FLOOR, EAGLE HOUSE, 16 PROCTER STREET, LONDON WC1V 6 NX, ENGLAND SN 0300-5127 J9 BIOCHEM SOC T JI Biochem. Soc. Trans. PD JUN PY 2010 VL 38 BP 817 EP 822 DI 10.1042/BST0380817 PN 3 PG 6 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 610AI UT WOS:000278700500013 PM 20491669 ER PT J AU Fischer, NO Infante, E Ishikawa, T Blanchette, CA Bourne, N Hoeprich, PD Mason, PW AF Fischer, Nicholas O. Infante, Ernesto Ishikawa, Tomohiro Blanchette, Craig A. Bourne, Nigel Hoeprich, Paul D. Mason, Peter W. TI Conjugation to Nickel-Chelating Nanolipoprotein Particles Increases the Potency and Efficacy of Subunit Vaccines to Prevent West Nile Encephalitis SO BIOCONJUGATE CHEMISTRY LA English DT Article ID APOLIPOPROTEIN-A-I; LETHAL JEV INFECTION; MEMBRANE-PROTEINS; DELIVERY VEHICLES; PROTECTS MICE; VIRUS-VACCINE; IMMUNIZATION; BILAYERS; CELLS; ACTIVATION AB Subunit antigens are attractive candidates for vaccine development, as they are safe, cost-effective, and rapidly produced. Nevertheless, subunit antigens often need to be adjuvanted and/or formulated to produce products with acceptable potency and efficacy. Here, we describe a simple method for improving the potency and efficacy of a recombinant subunit antigen by its immobilization on nickel-chelating nanolipoprotein particles (NiNLPs). NiNLPs are membrane mimetic nanoparticles that provide a delivery and presentation platform amenable to binding any recombinant subunit immunogens featuring a polyhistidine tag. A His-tagged, soluble truncated form of the West Nile virus (WNV) envelope protein (trE-His) was immobilized on NiNLPs. Single inoculations of the NiNLP-trE-His produced superior anti-WNV immune responses and provided significantly improved protection against a live WNV challenge compared to mice inoculated with trE-His alone. These results have broad implications in vaccine development and optimization, as NiNLP technology is well-suited to many types of vaccines, providing a universal platform for enhancing the potency and efficacy of recombinant subunit immunogens. C1 [Fischer, Nicholas O.; Blanchette, Craig A.; Hoeprich, Paul D.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. [Infante, Ernesto; Ishikawa, Tomohiro; Bourne, Nigel; Mason, Peter W.] Univ Texas Med Branch, Dept Pathol Microbiol & Immunol, Galveston, TX 77555 USA. RP Fischer, NO (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. EM hoeprich2@llnl.gov; peter.mason@novartis.com FU U.S. Department of Energy [LLNL-JRNL-420436, DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [LDRD 06-S1-003, LDRD 09-LW-077]; NIAID through the Western Regional Center of Excellence for Biodefense and Emerging Infectious Disease Research (NIH) [U54 AI057156, R21 AI077077] FX The authors thank Dr. Karl Weisgraber for providing apoE422K. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL-JRNL-420436) under Contract DE-AC52-07NA27344 with support from Lawrence Livermore National Laboratory (LDRD 06-S1-003 awarded to P.D.H and LDRD 09-LW-077 awarded to C.D.B.). P.W.M acknowledges support from NIAID through the Western Regional Center of Excellence for Biodefense and Emerging Infectious Disease Research (NIH grant number U54 AI057156) and R21 AI077077. NR 49 TC 14 Z9 15 U1 0 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1043-1802 J9 BIOCONJUGATE CHEM JI Bioconjugate Chem. PD JUN PY 2010 VL 21 IS 6 BP 1018 EP 1022 DI 10.1021/bc100083d PG 5 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Chemistry, Multidisciplinary; Chemistry, Organic SC Biochemistry & Molecular Biology; Chemistry GA 610LT UT WOS:000278734900004 PM 20509624 ER PT J AU Scheller, HV Singh, S Blanch, H Keasling, JD AF Scheller, Henrik Vibe Singh, Seema Blanch, Harvey Keasling, Jay D. TI The Joint BioEnergy Institute (JBEI): Developing New Biofuels by Overcoming Biomass Recalcitrance SO BIOENERGY RESEARCH LA English DT Article DE Biofuels; Cellulases; Synthetic biology; Pretreatment AB The mission of the Joint BioEnergy Institute is to advance the development of the next-generation of biofuels-liquid fuels derived from the solar energy stored in plant biomass. The papers in this volume describe some of the research conducted in the area of feedstocks development and biomass deconstruction. C1 [Scheller, Henrik Vibe; Keasling, Jay D.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Scheller, Henrik Vibe; Singh, Seema; Blanch, Harvey; Keasling, Jay D.] Joint BioEnergy Inst, Emeryville, CA 94608 USA. [Singh, Seema] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA 94551 USA. [Blanch, Harvey; Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. [Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. RP Scheller, HV (reprint author), Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM HScheller@lbl.gov RI Scheller, Henrik/A-8106-2008; Keasling, Jay/J-9162-2012 OI Scheller, Henrik/0000-0002-6702-3560; Keasling, Jay/0000-0003-4170-6088 NR 4 TC 2 Z9 3 U1 0 U2 11 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 105 EP 107 DI 10.1007/s12155-010-9086-2 PG 3 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500002 ER PT J AU Cao, PJ Jung, KH Ronald, PC AF Cao, Peijian Jung, Ki-Hong Ronald, Pamela C. TI A Survey of Databases for Analysis of Plant Cell Wall-Related Enzymes SO BIOENERGY RESEARCH LA English DT Article DE Biofuel; Plant cell wall; Database ID GLYCOSYLTRANSFERASE; MAIZE; RICE; GENES; BIOSYNTHESIS; BIOGENESIS; HYDROLASES; RESOURCES; EXPANSINS; GENOMICS AB Biofuels derived from plant cell wall lignocellulose have the potential to serve as an alternative source of energy, relieving dependence on finite petroleum reserves and reducing production of climate-changing greenhouse gases. To better elucidate cell wall structure, the plant research community has developed databases to host the accumulated information on plant cell wall-related enzymes. The goal of this review is to provide a comprehensive catalog of these databases, as well as to describe the data and tools that they make available. A Directory of Databases for Plant Cell Wall-Related Enzymes (plantcellwalls.ucdavis.edu) was also developed to provide links to all the databases reviewed in this paper and relevant publications. C1 [Cao, Peijian; Jung, Ki-Hong; Ronald, Pamela C.] Joint BioEnergy Inst, Dept Grass Genet, Feedstocks Div, Emeryville, CA 94710 USA. [Cao, Peijian; Jung, Ki-Hong; Ronald, Pamela C.] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA. [Cao, Peijian] Zhejiang Univ, Inst Bioinformat, Hangzhou 310029, Zhejiang, Peoples R China. [Jung, Ki-Hong] Kyung Hee Univ, Dept Plant Mol Syst Biotechnol, Yongin 446701, South Korea. [Jung, Ki-Hong] Kyung Hee Univ, Crop Biotech Inst, Yongin 446701, South Korea. RP Ronald, PC (reprint author), Joint BioEnergy Inst, Dept Grass Genet, Feedstocks Div, Emeryville, CA 94710 USA. EM pcronald@ucdavis.edu FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231] FX We thank M. E. Vega-Sanchez for comments and discussions. This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. NR 32 TC 1 Z9 1 U1 1 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 108 EP 114 DI 10.1007/s12155-010-9082-6 PG 7 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500003 ER PT J AU Rautengarten, C Baidoo, E Keasling, JD Scheller, HV AF Rautengarten, Carsten Baidoo, Edward Keasling, Jay D. Scheller, Henrik Vibe TI A Simple Method for Enzymatic Synthesis of Unlabeled and Radiolabeled Hydroxycinnamate-CoA SO BIOENERGY RESEARCH LA English DT Article DE 4-Coumarate-CoA ligase; Caffeoyl O-methyltransferase; Cell walls; Hydroxycinnamates; Ferulic acid ID 4-COUMARATE-COA LIGASE; GENE FAMILY; ARABINOXYLAN; WHEAT; PURIFICATION; LIGNIN; FERULOYLATION; BIOSYNTHESIS; ARABIDOPSIS; COENZYME AB Hydroxycinnamate coenzyme A (CoA) thioesters are substrates for biosynthesis of lignin and hydroxycinnamate esters of polysaccharides and other polymers. Hence, a supply of these substrates is essential for investigation of cell wall biosynthesis. In this study, three recombinant enzymes, caffeic acid 3-O-methyltransferase, 4-coumarate-CoA ligase 1, and 4-coumarate-CoA ligase 5, were cloned from wheat, tobacco, and Arabidopsis, respectively, and were used to synthesize (14)C-feruloyl-CoA, caffeoyl-CoA, p-coumaroyl-CoA, feruloyl-CoA, and sinapoyl-CoA. The corresponding hydroxycinnamoyl-CoA thioesters were high-performance liquid chromatography purified, the only extraction/purification step necessary, with total yields between 88-95%. Radiolabeled (14)C-feruloyl-CoA was generated from caffeic acid and S-adenosyl-(14)C-methionine under the combined action of caffeic acid 3-O-methyltransferase and 4-coumarate-CoA ligase 1. About 70% of (14)C-methyl groups from S-adenosyl methionine were incorporated into the final product. The methods presented are simple, fast, and efficient for the preparation of the hydroxycinnamate thioesters. C1 [Rautengarten, Carsten; Scheller, Henrik Vibe] Joint BioEnergy Inst, Feedstocks Div, Emeryville, CA 94608 USA. [Baidoo, Edward; Keasling, Jay D.] Joint BioEnergy Inst, Fuel Synth Div, Emeryville, CA 94608 USA. [Rautengarten, Carsten; Baidoo, Edward; Keasling, Jay D.; Scheller, Henrik Vibe] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Engn & Bioengn, Berkeley, CA 94720 USA. RP Scheller, HV (reprint author), Joint BioEnergy Inst, Feedstocks Div, 5885 Hollis St, Emeryville, CA 94608 USA. EM HScheller@lbl.gov RI Scheller, Henrik/A-8106-2008; Keasling, Jay/J-9162-2012 OI Scheller, Henrik/0000-0002-6702-3560; Keasling, Jay/0000-0003-4170-6088 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231] FX This work was supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. NR 17 TC 8 Z9 8 U1 1 U2 9 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 115 EP 122 DI 10.1007/s12155-010-9085-3 PG 8 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500004 ER PT J AU Brennan, TCR Datta, S Blanch, HW Simmons, BA Holmes, BM AF Brennan, Timothy C. R. Datta, Supratim Blanch, Harvey W. Simmons, Blake A. Holmes, Bradley M. TI Recovery of Sugars from Ionic Liquid Biomass Liquor by Solvent Extraction SO BIOENERGY RESEARCH LA English DT Article DE Ionic liquid pretreatment; Solvent extraction; Boronic acids; Cellobiose; Glucose; Xylose; Hydrolysate; Ionic liquid recovery and recycling; 1-ethyl-3-methylimidazolium acetate ID BORONIC ACID CARRIERS; TRIOCTYLMETHYLAMMONIUM CHLORIDE; AQUEOUS-SOLUTION; PRETREATMENT; CELLULOSE; SACCHARIFICATION; HYDROLYSIS; RECALCITRANCE; PURIFICATION; DISSOLUTION AB The dissolution of biomass into ionic liquids (ILs) has been shown to be a promising alternative biomass pretreatment technology, facilitating faster breakdown of cellulose through the disruption of lignin and the decrystallization of cellulose. Both biological and chemical catalysis have been employed to enhance the conversion of IL-treated biomass polysaccharides into monomeric sugars. However, biomass-dissolving ILs, sugar monomers, and smaller carbohydrate oligomers are all soluble in water. This reduces the overall sugar content in the recovered solid biomass and complicates the recovery and recycle of the IL. Near-complete recovery of the IL and the holocellulose is essential for an IL-based pretreatment technology to be economically feasible. To address this, a solvent extraction technique, based on the chemical affinity of boronates such as phenylboronic acid and naphthalene-2-boronic acid for sugars, was applied to the extraction of glucose, xylose, and cellobiose from aqueous mixtures of 1-ethyl-3-methylimidazolium acetate. It was shown that boronate complexes could extract up to 90% of mono- and disaccharides from aqueous IL solutions, 100% IL systems, and hydrolysates of corn stover containing IL. The use of boronate complexes shows significant potential as a way to recover sugars at several stages in ionic liquid biomass pretreatment processes, delivering a concentrated solution of fermentable sugars, minimizing toxic byproducts, and facilitating ionic liquid cleanup and recycle. C1 [Brennan, Timothy C. R.; Datta, Supratim; Blanch, Harvey W.; Simmons, Blake A.; Holmes, Bradley M.] Joint BioEnergy Inst, Deconstruct Div, Emeryville, CA USA. [Brennan, Timothy C. R.; Blanch, Harvey W.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA USA. [Datta, Supratim; Simmons, Blake A.; Holmes, Bradley M.] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. RP Holmes, BM (reprint author), Joint BioEnergy Inst, Deconstruct Div, Emeryville, CA USA. EM bmholme@sandia.gov OI Simmons, Blake/0000-0002-1332-1810 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231] FX We would like to thank Ozgul Persil Cetinkol and Andreia Michelle Smith for their contribution to the supplementary information. This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. NR 36 TC 57 Z9 57 U1 1 U2 66 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 123 EP 133 DI 10.1007/s12155-010-9091-5 PG 11 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500005 ER PT J AU Arora, R Manisseri, C Li, CL Ong, MD Scheller, HV Vogel, K Simmons, BA Singh, S AF Arora, Rohit Manisseri, Chithra Li, Chenlin Ong, Markus D. Scheller, Henrik Vibe Vogel, Kenneth Simmons, Blake A. Singh, Seema TI Monitoring and Analyzing Process Streams Towards Understanding Ionic Liquid Pretreatment of Switchgrass (Panicum virgatum L.) SO BIOENERGY RESEARCH LA English DT Article DE Biomass; Cellulase kinetics; Delignification; Ionic liquid; Pretreatment; Porosity; Surface area; Switchgrass ID DILUTE SULFURIC-ACID; ENZYMATIC-HYDROLYSIS; CORN STOVER; CELLULOSIC ETHANOL; LIGNIN; ENHANCEMENT; SUGAR; LIGNOCELLULOSE; FERMENTATION; KINETICS AB Fundamental understanding of biomass pretreatment and its influence on saccharification kinetics, total sugar yield, and inhibitor formation is essential to develop efficient next-generation biofuel strategies, capable of displacing fossil fuels at a commercial level. In this study, we investigated the effect of residence time and temperature during ionic liquid (IL) pretreatment of switchgrass using 1-ethyl-3-methyl imidazolium acetate. The primary metrics of pretreatment performance are biomass delignification, xylan and glucan depolymerization, porosity, surface area, cellulase kinetics, and sugar yields. Compositional analysis and quantification of process streams of saccharides and lignin demonstrate that delignification increases as a function of pretreatment temperature and is hypothesized to be correlated with the apparent glass transition temperature of lignin. IL pretreatment did not generate monosaccharides from hemicellulose. Compared to untreated switchgrass, Brunauer-Emmett-Teller surface area of pretreated switchgrass increased by a factor of similar to 30, with a corresponding increase in saccharification kinetics of a factor of similar to 40. There is an observed dependence of cellulase kinetics with delignification efficiency. Although complete biomass dissolution is observed after 3 h of IL pretreatment, the pattern of sugar release, saccharification kinetics, and total sugar yields are strongly correlated with temperature. C1 [Li, Chenlin; Simmons, Blake A.; Singh, Seema] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. [Arora, Rohit; Manisseri, Chithra; Li, Chenlin; Scheller, Henrik Vibe; Simmons, Blake A.; Singh, Seema] Lawrence Berkeley Natl Lab, Joint BioEnergy Inst, Phys Biosci Div, Emeryville, CA USA. [Ong, Markus D.] Sandia Natl Labs, Energy Nanomat Dept, Livermore, CA USA. [Vogel, Kenneth] Univ Nebraska, USDA ARS, Grain Forage & Bioenergy Res Unit, Lincoln, NE USA. RP Singh, S (reprint author), Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. EM seesing@sandia.gov RI Scheller, Henrik/A-8106-2008; OI Scheller, Henrik/0000-0002-6702-3560; Li, Chenlin/0000-0002-0793-0505; Simmons, Blake/0000-0002-1332-1810 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231] FX This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. The authors thank Drs. Patanjali Varanasi and Anthe George from the Joint BioEnergy Institute for their help with manuscript proofreading and their valuable comments. NR 41 TC 73 Z9 73 U1 1 U2 25 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 134 EP 145 DI 10.1007/s12155-010-9087-1 PG 12 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500006 ER PT J AU DeAngelis, KM Gladden, JM Allgaier, M D'haeseleer, P Fortney, JL Reddy, A Hugenholtz, P Singer, SW Vander Gheynst, JS Silver, WL Simmons, BA Hazen, TC AF DeAngelis, Kristen M. Gladden, John M. Allgaier, Martin D'haeseleer, Patrik Fortney, Julian L. Reddy, Amitha Hugenholtz, Philip Singer, Steven W. Vander Gheynst, Jean S. Silver, Whendee L. Simmons, Blake A. Hazen, Terry C. TI Strategies for Enhancing the Effectiveness of Metagenomic-based Enzyme Discovery in Lignocellulolytic Microbial Communities SO BIOENERGY RESEARCH LA English DT Article DE Lignocellulolytic; Enzymes; Metagenome; Community; Rain forest; Compost; PhyloChip; Pyrotag ID SULFATE-REDUCING BACTERIA; RHODOCOCCUS-ERYTHROPOLIS; AROMATIC-COMPOUNDS; LIGNIN; SOIL; DEGRADATION; REDUCTION; GUT; DNA; DENITRIFICATION AB Producing cellulosic biofuels from plant material has recenSSU rRNA gene amplicon pyrosequencing or phylogenetic microarray analysis revealed that the adapted communities were significantly simplified compared to the natural communities from which they were derived. Several members of the lignin-adapted and switchgrass-adapted consortia are related to organisms previously characterized as biomass degraders, while others were from less well-characterized phyla. The decrease in complexity of these communities make them good candidates for metagenomic sequencing and will likely enable the reconstruction of a greater number of full-length genes, leading to the discovery of novel lignocellulose-degrading enzymes adapted to feedstocks and conditions of interest.tly emerged as a key US Department of Energy goal. For this technology to be commercially viable on a large scale, it is critical to make production cost efficient by streamlining both the deconstruction of lignocellulosic biomass and fuel production. Many natural ecosystems efficiently degrade lignocellulosic biomass and harbor enzymes that, when identified, could be used to increase the efficiency of commercial biomass deconstruction. However, ecosystems most likely to yield relevant enzymes, such as tropical rain forest soil in Puerto Rico, are often too complex for enzyme discovery using current metagenomic sequencing technologies. One potential strategy to overcome this problem is to selectively cultivate the microbial communities from these complex ecosystems on biomass under defined conditions, generating less complex biomass-degrading microbial populations. To test this premise, we cultivated microbes from Puerto Rican soil or green waste compost under precisely defined conditions in the presence dried ground switchgrass (Panicum virgatum L.) or lignin, respectively, as the sole carbon source. Phylogenetic profiling of the two feedstock-adapted communities using SSU rRNA gene amplicon pyrosequencing or phylogenetic microarray analysis revealed that the adapted communities were significantly simplified compared to the natural communities from which they were derived. Several members of the lignin-adapted and switchgrass-adapted consortia are related to organisms previously characterized as biomass degraders, while others were from less well-characterized phyla. The decrease in complexity of these communities make them good candidates for metagenomic sequencing and will likely enable the reconstruction of a greater number of full-length genes, leading to the discovery of novel lignocellulose-degrading enzymes adapted to feedstocks and conditions of interest. C1 [Hazen, Terry C.] Lawrence Berkeley Natl Lab, Dept Ecol, Div Earth Sci, Berkeley, CA 94720 USA. [DeAngelis, Kristen M.; Gladden, John M.; Allgaier, Martin; D'haeseleer, Patrik; Fortney, Julian L.; Reddy, Amitha; Hugenholtz, Philip; Singer, Steven W.; Vander Gheynst, Jean S.; Simmons, Blake A.; Hazen, Terry C.] Joint BioEnergy Inst, Deconstruct Div, Microbial Communities Grp, Emeryville, CA USA. [DeAngelis, Kristen M.; Fortney, Julian L.; Singer, Steven W.; Silver, Whendee L.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. [Gladden, John M.; D'haeseleer, Patrik] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA. [Allgaier, Martin; Hugenholtz, Philip] Joint Genome Inst, Walnut Creek, CA USA. [Reddy, Amitha; Vander Gheynst, Jean S.] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA. [Silver, Whendee L.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Simmons, Blake A.] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. RP Hazen, TC (reprint author), Lawrence Berkeley Natl Lab, Dept Ecol, Div Earth Sci, 1 Cyclotron Rd,MS 70A-3317, Berkeley, CA 94720 USA. EM TCHazen@lbl.gov RI Hugenholtz, Philip/G-9608-2011; Silver, Whendee/H-1118-2012; Hazen, Terry/C-1076-2012; OI Hazen, Terry/0000-0002-2536-9993; D'haeseleer, Patrik/0000-0003-0007-8150; DeAngelis, Kristen/0000-0002-5585-4551; Simmons, Blake/0000-0002-1332-1810 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231] FX The authors would like to especially thank Dr. Ken Vogel of the USDA for the switchgrass samples used in this study. This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. NR 52 TC 50 Z9 52 U1 8 U2 44 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 146 EP 158 DI 10.1007/s12155-010-9089-z PG 13 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500007 ER PT J AU Ranjan, P Yin, TM Zhang, XY Kalluri, UC Yang, XH Jawdy, S Tuskan, GA AF Ranjan, Priya Yin, Tongming Zhang, Xinye Kalluri, Udaya C. Yang, Xiaohan Jawdy, Sara Tuskan, Gerald A. TI Bioinformatics-Based Identification of Candidate Genes from QTLs Associated with Cell Wall Traits in Populus SO BIOENERGY RESEARCH LA English DT Article DE Populus; Whole-genome duplication; Quantitative trait loci; Wood chemistry; Syringyl lignin; Guaiacyl lignin; Biofuels ID GENOME DUPLICATION; DOWN-REGULATION; LIGNIN; ARABIDOPSIS; ASPEN; BIOSYNTHESIS; EVOLUTION; BIOFUELS; PLANTS; TRICHOCARPA AB Quantitative trait locus (QTL) studies are an integral part of plant research and are used to characterize the genetic basis of phenotypic variation observed in structured populations and inform marker-assisted breeding efforts. These QTL intervals can span large physical regions on a chromosome comprising hundreds of genes, thereby hampering candidate gene identification. Genome history, evolution, and expression evidence can be used to narrow the genes in the interval to a smaller list that is manageable for detailed downstream functional genomics characterization. Our primary motivation for the present study was to address the need for a research methodology that identifies candidate genes within a broad QTL interval. Here we present a bioinformatics-based approach for subdividing candidate genes within QTL intervals into alternate groups of high probability candidates. Application of this approach in the context of studying cell wall traits, specifically lignin content and S/G ratios of stem and root in Populus plants, resulted in manageable sets of genes of both known and putative cell wall biosynthetic function. These results provide a roadmap for future experimental work leading to identification of new genes controlling cell wall recalcitrance and, ultimately, in the utility of plant biomass as an energy feedstock. C1 [Ranjan, Priya; Yin, Tongming; Zhang, Xinye; Kalluri, Udaya C.; Yang, Xiaohan; Jawdy, Sara; Tuskan, Gerald A.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Ranjan, Priya; Yin, Tongming; Zhang, Xinye; Kalluri, Udaya C.; Yang, Xiaohan; Jawdy, Sara; Tuskan, Gerald A.] Oak Ridge Natl Lab, Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA. RP Ranjan, P (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. EM ranjanp@ornl.gov RI KALLURI, UDAYA/A-6218-2011; Tuskan, Gerald/A-6225-2011; Ranjan, Priya/F-6835-2011; Yang, Xiaohan/A-6975-2011; OI Tuskan, Gerald/0000-0003-0106-1289; Yang, Xiaohan/0000-0001-5207-4210; KALLURI, UDAYA/0000-0002-5963-8370 FU BioEnergy Science Center, US Department of Energy Bioenergy Research Center, Office of Biological and Environmental Research in the DOE Office of Science [DE-AC05-00OR22725] FX The authors would like to thank Dr. Stan Wullschleger, David Weston, Lee Gunter, and Manojit Basu for their technical reviews of this paper. The present study was enabled by research funds through the BioEnergy Science Center, 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. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the US Department of Energy NR 43 TC 14 Z9 14 U1 1 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 172 EP 182 DI 10.1007/s12155-009-9060-z PG 11 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500009 ER PT J AU Weyer, KM Bush, DR Darzins, A Willson, BD AF Weyer, Kristina M. Bush, Daniel R. Darzins, Al Willson, Bryan D. TI Theoretical Maximum Algal Oil Production SO BIOENERGY RESEARCH LA English DT Article DE Algae; Biofuels; Theoretical yield; Oil production; Second-generation feedstock ID BIOMASS; IRRADIANCE; EFFICIENCY; PHOTOBIOREACTORS; PHOTOSYNTHESIS; MICROALGAE; RADIATION; BIODIESEL; CULTURES; ENERGY AB Interest in algae as a feedstock for biofuel production has risen in recent years, due to projections that algae can produce lipids (oil) at a rate significantly higher than agriculture-based feedstocks. Current research and development of enclosed photobioreactors for commercial-scale algal oil production is directed towards pushing the upper limit of productivity beyond that of open ponds. So far, most of this development is in a prototype stage, so working production metrics for a commercial-scale algal biofuel system are still unknown, and projections are largely based on small-scale experimental data. Given this research climate, a methodical analysis of a maximum algal oil production rate from a theoretical perspective will be useful to the emerging industry for understanding the upper limits that will bound the production capabilities of new designs. This paper presents a theoretical approach to calculating an absolute upper limit to algal production based on physical laws and assumptions of perfect efficiencies. In addition, it presents a best case approach that represents an optimistic target for production based on realistic efficiencies and is calculated for six global sites. The theoretical maximum was found to be 354,000 L.ha(-1).year(-1) (38,000 gal.ac(-1).year(-1)) of unrefined oil, while the best cases examined in this report range from 40,700-53,200 L.ha(-1).year(-1) (4,350-5,700 gal.ac(-1).year(-1)) of unrefined oil. C1 [Weyer, Kristina M.] Solix Biofuels Inc, Ft Collins, CO 80524 USA. [Bush, Daniel R.] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA. [Darzins, Al] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Willson, Bryan D.] Colorado State Univ, Dept Mech Engn, Engines & Energy Convers Lab, Ft Collins, CO 80524 USA. RP Weyer, KM (reprint author), Solix Biofuels Inc, 430B N Coll Ave, Ft Collins, CO 80524 USA. EM kristina.weyer@solixbiofuels.com NR 35 TC 143 Z9 147 U1 12 U2 74 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1939-1234 J9 BIOENERG RES JI BioEnergy Res. PD JUN PY 2010 VL 3 IS 2 SI SI BP 204 EP 213 DI 10.1007/s12155-009-9046-x PG 10 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA 607XV UT WOS:000278541500012 ER PT J AU Bulla, I Schultz, AK Schreiber, F Zhang, M Leitner, T Korber, B Morgenstern, B Stanke, M AF Bulla, Ingo Schultz, Anne-Kathrin Schreiber, Fabian Zhang, Ming Leitner, Thomas Korber, Bette Morgenstern, Burkhard Stanke, Mario TI HIV classification using the coalescent theory SO BIOINFORMATICS LA English DT Article ID IMMUNODEFICIENCY-VIRUS TYPE-1; NATURAL-POPULATIONS; MAXIMUM-LIKELIHOOD; RNA RECOMBINATION; EVOLUTION; ALIGNMENTS; SEQUENCES; GENOMES; ORIGIN; MODEL AB Motivation: Existing coalescent models and phylogenetic tools based on them are not designed for studying the genealogy of sequences like those of HIV, since in HIV recombinants with multiple cross-over points between the parental strains frequently arise. Hence, ambiguous cases in the classification of HIV sequences into subtypes and circulating recombinant forms (CRFs) have been treated with ad hoc methods in lack of tools based on a comprehensive coalescent model accounting for complex recombination patterns. Results: We developed the program ARGUS that scores classifications of sequences into subtypes and recombinant forms. It reconstructs ancestral recombination graphs (ARGs) that reflect the genealogy of the input sequences given a classification hypothesis. An ARG with maximal probability is approximated using a Markov chain Monte Carlo approach. ARGUS was able to distinguish the correct classification with a low error rate from plausible alternative classifications in simulation studies with realistic parameters. We applied our algorithm to decide between two recently debated alternatives in the classification of CRF02 of HIV-1 and find that CRF02 is indeed a recombinant of Subtypes A and G. C1 [Bulla, Ingo; Schultz, Anne-Kathrin; Schreiber, Fabian; Morgenstern, Burkhard; Stanke, Mario] Univ Gottingen, Abt Bioinformat, Inst Mikrobiol & Genet, D-37077 Gottingen, Germany. [Zhang, Ming; Leitner, Thomas; Korber, Bette] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Korber, Bette] Santa Fe Inst, Santa Fe, NM 87501 USA. RP Bulla, I (reprint author), Univ Gottingen, Abt Bioinformat, Inst Mikrobiol & Genet, Goldschmidtstr 1, D-37077 Gottingen, Germany. EM ibulla@uni-goettingen.de RI Morgenstern, Burkhard/A-7486-2008; OI Korber, Bette/0000-0002-2026-5757; Schultz, Anne-Kathrin/0000-0002-0963-4275 FU Deutsche Forschungsgemeinschaft [STA 1009/5-1]; National Institutes of Health-Department of Energy [Y1-AI-8309] FX Funding: Deutsche Forschungsgemeinschaft (STA 1009/5-1 to B. M. and M. S.); National Institutes of Health-Department of Energy interagency agreement (Y1-AI-8309 to B. K. and T. L.). NR 38 TC 8 Z9 8 U1 0 U2 3 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1367-4803 J9 BIOINFORMATICS JI Bioinformatics PD JUN 1 PY 2010 VL 26 IS 11 BP 1409 EP 1415 DI 10.1093/bioinformatics/btq159 PG 7 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Computer Science, Interdisciplinary Applications; Mathematical & Computational Biology; Statistics & Probability SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Computer Science; Mathematical & Computational Biology; Mathematics GA 600KT UT WOS:000277985500004 PM 20400454 ER PT J AU Shu, JY Huang, YJ Tan, C Presley, AD Chang, J Xu, T AF Shu, Jessica Y. Huang, Yu-Ja Tan, Cen Presley, Andrew D. Chang, Joseph Xu, Ting TI Amphiphilic Peptide-Polymer Conjugates Based on the Coiled-Coil Helix Bundle SO BIOMACROMOLECULES LA English DT Article ID HYBRID BLOCK-COPOLYMERS; SOLID-STATE STRUCTURE; MOLECULAR ARCHITECTURE; ROD-COIL; DIBLOCK COPOLYMERS; GIANT AMPHIPHILES; COFACTOR RECONSTITUTION; BIOMOLECULAR MATERIALS; TRIBLOCK COPOLYMERS; SYNTHETIC-POLYMERS AB Amphiphilic peptide polymer conjugates can lead to hierarchically structured, biomolecular materials. Because the peptide structure determines the size, shape, and intermolecular interactions of these building blocks, systematic understanding of how the peptide structure and functionality are affected upon implementing hydrophobicity is required to direct their assemblies in solution and in the solid state. However, depending on the peptide sequence and native structure, previous studies have shown that the hydrophobic moieties affect peptide structures differently. Here, we present a solution study of amphiphilic peptide polymer conjugates, where a hydrophobic polymer, polystyrene, is covalently linked to the N-terminus of a coiled-coil helix bundle-forming peptide. The effect of conjugated hydrophobic polymers on the peptide secondary and tertiary structures was examined using two types of model, coiled-coil helix bundles. In particular, the integrity of the binding pocket within the helix bundle upon hydrophobic polymer conjugation was evaluated. Upon attachment of polystyrene to the peptide N-terminus, the coiled-coil helices partially unfolded and functionality within the bundle core was inhibited. These observations are attributed to favorable interactions between hydrophobic residues with the PS block at the peptide polymer interface that lead to rearrangement of peptide residues and consequently, unfolding of peptide structures. Thus, the hydrophobicity of the covalently linked polymers modifies the conjugates' architecture, size, and shape and may be used to tailor the assembly and disassembly process. Furthermore, the hydrophobicity of the covalently linked polymer needs to be taken into consideration to maintain the built-in functionalities of protein motifs when constructing amphiphilic peptide polymer conjugates. C1 [Shu, Jessica Y.; Huang, Yu-Ja; Tan, Cen; Presley, Andrew D.; Chang, Joseph; Xu, Ting] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Xu, Ting] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Xu, Ting] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Xu, T (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. EM tingxu@berkeley.edu FU 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 This work is supported by the U.S. Department of Energy through the Hybrid Biomaterials Scattering Program at Lawrence Berkeley National Laboratory under Contract DE-AC02-05CH11231. CD measurements at the Molecular Foundry were supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. We also thank Sijun Liu for her help with the schematic drawings. NR 82 TC 24 Z9 24 U1 6 U2 45 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1525-7797 J9 BIOMACROMOLECULES JI Biomacromolecules PD JUN PY 2010 VL 11 IS 6 BP 1443 EP 1452 DI 10.1021/bm100009e PG 10 WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science SC Biochemistry & Molecular Biology; Chemistry; Polymer Science GA 608VD UT WOS:000278613200004 PM 20465287 ER PT J AU Wright, L Turhollow, A AF Wright, Lynn Turhollow, Anthony TI Switchgrass selection as a "model" bioenergy crop: A history of the process SO BIOMASS & BIOENERGY LA English DT Article DE Herbaceous energy crops; Panicum virgatum; Sorghum bicolor; Crop yields; Environmental issues; Lignocellulosic; Weather ID BIOMASS; FEEDSTOCK AB A review of several publications of the Oak Ridge National Laboratory's Biofuels Feedstock Development Program and final reports from the herbaceous crop screening trials show that technology, environmental, and funding issues influenced the decision to focus on a single herbaceous "model" crop species. Screening trials funded by the U.S. Department of Energy in the late 1980s to early 1990s assessed thirty-four herbaceous species on a wide range of soil types at thirty-one different sites spread over seven states in crop producing regions of the U.S. Several species, including sorghums, reed canarygrass, wheatgrasses, and other crops, were identified as having merit for further development. Six of the seven institutions performing the screening included switchgrass among the species recommended for further development in their region and all recommended that perennial grasses be given high research priority. Reasons for the selection of switchgrass included demonstration of relatively high, reliable productivity across a wide geographical range, suitability for marginal quality land, low water and nutrient requirements, and other positive environmental attributes. Crop screening results, economic and environmental assessments by the Biofuels Feedstock Development Program staff, and Department of Energy funding limitations all contributed to the decision to further develop only switch-grass as a "model" or "prototype" species in 1991. The following ten year focus on development of switchgrass as a bioenergy crop proved the value of focusing on a single "model" herbaceous crop. The advancements and attention gained were sufficient to give government leaders, policymakers, farmers, and biofuel industry developers the confidence that lignocellulosic crops could support an economically viable and environmentally sustainable biofuel industry in the U.S. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Wright, Lynn; Turhollow, Anthony] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Wright, L (reprint author), Wright Link Consulting 111 Cross Winds Cove Rd, Ten Mile, TN 37880 USA. EM wrightlld@gmail.com FU Department of Energy; U.S. Department of Energy [DE-AC05-00OR22725] FX This research was sponsored by the Department of Energy's Biomass Program and performed at Oak Ridge National Laboratory (ORNL). ORNL is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. The long-term support of the DOE Biomass Program, and especially John Ferrell of that group, has been greatly appreciated. Much credit goes to ORNL staff, Janet Cushman, Sandy McLaughlin, Lynn Kszos, and Bill Johnston for the many reports and papers on herbaceous crops that they prepared during their tenures as managers and/or project leaders of herbaceous crops research. Very importantly, we would like to recognize the researchers who carried out the herbaceous crops screening trials and concluded those trials with excellent final reports documenting the results. We also thank the ORNL reviewers, Erin Wilkerson and Stan Wullschlager, who greatly improved this document with their input. NR 36 TC 84 Z9 88 U1 4 U2 42 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0961-9534 J9 BIOMASS BIOENERG JI Biomass Bioenerg. PD JUN PY 2010 VL 34 IS 6 BP 851 EP 868 DI 10.1016/j.biombioe.2010.01.030 PG 18 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA 605OI UT WOS:000278356500006 ER PT J AU Miller, A Siffel, C Lu, CX Riehle-Colarusso, T Frias, JL Correa, A AF Miller, Assia Siffel, Csaba Lu, Chengxing Riehle-Colarusso, Tiffany Frias, Jaime L. Correa, Adolfo TI Long-Term Survival of Infants with Atrioventricular Septal Defects with and without Down Syndrome in Atlanta SO BIRTH DEFECTS RESEARCH PART A-CLINICAL AND MOLECULAR TERATOLOGY LA English DT Meeting Abstract C1 [Miller, Assia; Siffel, Csaba; Lu, Chengxing; Riehle-Colarusso, Tiffany; Frias, Jaime L.; Correa, Adolfo] Ctr Dis Control & Prevent, Natl Ctr Birth Defects & Dev Disabil, Atlanta, GA USA. [Miller, Assia] Oak Ridge Inst Sci & Educ, Atlanta, GA USA. [Siffel, Csaba] Comp Sci Corp, Atlanta, GA USA. [Lu, Chengxing] Merck Res Labs, Upper Gwynedd, PA USA. [Frias, Jaime L.] McKing Consulting Corp, Fairfax, VA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1542-0752 EI 1542-0760 J9 BIRTH DEFECTS RES A JI Birth Defects Res. Part A-Clin. Mol. Teratol. PD JUN PY 2010 VL 88 IS 6 BP 509 EP 509 PG 1 WC Developmental Biology; Toxicology SC Developmental Biology; Toxicology GA 623DA UT WOS:000279716900024 ER PT J AU Barth, HD Launey, ME MacDowell, AA Ager, JW Ritchie, RO AF Barth, Holly D. Launey, Maximilien E. MacDowell, Alastair A. Ager, Joel W., III Ritchie, Robert O. TI On the effect of X-ray irradiation on the deformation and fracture behavior of human cortical bone SO BONE LA English DT Article DE Human cortical bone; X-ray radiation; Deformation; Toughness; Collagen ID HUMAN CANCELLOUS BONE; FATIGUE-CRACK-PROPAGATION; AGE-RELATED-CHANGES; MECHANICAL-PROPERTIES; GAMMA-IRRADIATION; BIOMECHANICAL PROPERTIES; IONIZING-RADIATION; ALLOGRAFT BONE; MINERALIZED TISSUES; COLLAGEN AB In situ mechanical testing coupled with imaging using high-energy synchrotron X-ray diffraction or tomography is gaining in popularity as a technique to investigate micrometer and even sub-micrometer deformation and fracture mechanisms in mineralized tissues, such as bone and teeth. However, the role of the irradiation in affecting the nature and properties of the tissue is not always taken into account. Accordingly, we examine here the effect of X-ray synchrotron-source irradiation on the mechanistic aspects of deformation and fracture in human cortical bone. Specifically, the strength, ductility and fracture resistance (both work-of-fracture and resistance-curve fracture toughness) of human femoral bone in the transverse (breaking) orientation were evaluated following exposures to 0.05, 70, 210 and 630 kGrays (kGy) irradiation. Our results show that the radiation typically used in tomography imaging can have a major and deleterious impact on the strength, post-yield behavior and fracture toughness of cortical bone, with the severity of the effect progressively increasing with higher doses of radiation. Plasticity was essentially suppressed after as little as 70 kGy of radiation; the fracture toughness was decreased by a factor of five after 210 kGy of radiation. Mechanistically, the irradiation was found to alter the salient toughening mechanisms, manifest by the progressive elimination of the bone's capacity for plastic deformation which restricts the intrinsic toughening from the formation "plastic zones" around crack-like defects. Deep-ultraviolet Raman spectroscopy indicated that this behavior could be related to degradation in the collagen integrity. Published by Elsevier Inc. C1 [Barth, Holly D.; Launey, Maximilien E.; Ager, Joel W., III; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Barth, Holly D.; MacDowell, Alastair A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Expt Syst Grp, Berkeley, CA 94720 USA. [Barth, Holly D.; Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Ritchie, RO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM RORitchie@lbl.gov RI Ritchie, Robert/A-8066-2008; MacDowell, Alastair/K-4211-2012; OI Ritchie, Robert/0000-0002-0501-6998; Ager, Joel/0000-0001-9334-9751 FU U.S. Department of Energy [DE-AC02-05CH11231]; Office of Science of the Department of Energy FX This work was supported by the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory (LBNL), funded by the U.S. Department of Energy under contract no. DE-AC02-05CH11231. We acknowledge the use of the X-ray synchrotron micro-tomography beam line (8.3.2) at the Advanced Light Source at LBNL, supported by the Office of Science of the Department of Energy. The authors also wish to thank Professor Tony M. Keaveny and Mike Jekir, of the Mechanical Engineering Department at the University of California, Berkeley, for graciously allowing us to use their facilities to machine samples for this project. NR 83 TC 64 Z9 64 U1 2 U2 24 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 8756-3282 J9 BONE JI Bone PD JUN PY 2010 VL 46 IS 6 BP 1475 EP 1485 DI 10.1016/j.bone.2010.02.025 PG 11 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 607EF UT WOS:000278481000002 PM 20206724 ER PT J AU Thurner, PJ Chen, CG Ionova-Martin, S Sun, LL Harman, A Porter, A Ager, JW Ritchie, RO Alliston, T AF Thurner, Philipp J. Chen, Carol G. Ionova-Martin, Sophi Sun, Luling Harman, Adam Porter, Alexandra Ager, Joel W., III Ritchie, Robert O. Alliston, Tamara TI Osteopontin deficiency increases bone fragility but preserves bone mass SO BONE LA English DT Article DE Osteopontin; Rodent; Fracture toughness; Bone matrix properties; Mineralization ID HUMAN CORTICAL BONE; HUMAN TRABECULAR BONE; MECHANICAL-PROPERTIES; IN-VITRO; MINERAL CRYSTALLINITY; DENSITY DISTRIBUTION; FRACTURE-TOUGHNESS; MATRIX PROTEINS; MICE LACKING; MOUSE BONE AB The ability of bone to resist catastrophic failure is critically dependent upon the material properties of bone matrix, a composite of hydroxyapatite, collagen type I, and noncollagenous proteins. These properties include elastic modulus, hardness, and fracture toughness. Like other aspects of bone quality, matrix material properties are biologically-defined and can be disrupted in skeletal disease. While mineral and collagen have been investigated in greater detail, the contribution of noncollagenous proteins such as osteopontin to bone matrix material properties remains unclear. Several roles have been ascribed to osteopontin in bone, many of which have the potential to impact material properties. To elucidate the role of osteopontin in bone quality, we evaluated the structure, composition, and material properties of bone from osteopontin-deficient mice and wild-type littermates at several length scales. Most importantly, the results show that osteopontin deficiency causes a 30% decrease in fracture toughness, suggesting an important role for OPN in preventing crack propagation. This significant decline in fracture toughness is independent of changes in whole bone mass, structure, or matrix porosity. Using nanoindentation and quantitative backscattered electron imaging to evaluate osteopontin-deficient bone matrix at the micrometer level, we observed a significant reduction in elastic modulus and increased variability in calcium concentration. Matrix heterogeneity was also apparent at the ultrastructural level. In conclusion, we find that osteopontin is essential for the fracture toughness of bone, and reduced toughness in osteopontin-deficient bone may be related to the increased matrix heterogeneity observed at the micro-scale. By exploring the effects of osteopontin deficiency on bone matrix material properties, composition and organization, this study suggests that reduced fracture toughness is one mechanism by which loss of noncollagenous proteins contribute to bone fragility. (C) 2010 Elsevier Inc. All rights reserved. C1 [Thurner, Philipp J.; Chen, Carol G.; Alliston, Tamara] Univ Calif San Francisco, Dept Orthopaed Surg, San Francisco, CA 94143 USA. [Thurner, Philipp J.] Univ Southampton, Sch Engn Sci, Southampton SO9 5NH, Hants, England. [Ionova-Martin, Sophi; Sun, Luling; Ager, Joel W., III; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Ionova-Martin, Sophi; Sun, Luling; Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Ionova-Martin, Sophi; Sun, Luling; Ager, Joel W., III; Ritchie, Robert O.] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London, England. [Alliston, Tamara] Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, San Francisco, CA 94143 USA. [Alliston, Tamara] Univ Calif San Francisco, Dept Otolaryngol, San Francisco, CA 94143 USA. [Alliston, Tamara] Univ Calif San Francisco, Eli & Edythe Broad Ctr Regenerat Med & Stem Cell, San Francisco, CA 94143 USA. RP Alliston, T (reprint author), Univ Calif San Francisco, Dept Orthopaed Surg, 533 Parnassus,UC Hall 452, San Francisco, CA 94143 USA. EM p.thurner@soton.ac.uk; carol.chen@ucsf.edu; sophi@berkeley.edu; llsun@berkeley.edu; adam.harman05@imperial.ac.uk; a.porter@imperial.ac.uk; JWAger@lbl.gov; roritchie@lbl.gov; tamara.alliston@ucsf.edu RI Thurner, Philipp/A-3887-2012; Ritchie, Robert/A-8066-2008; OI Ritchie, Robert/0000-0002-0501-6998; Alliston, Tamara/0000-0001-9992-2897; Thurner, Philipp/0000-0001-7588-9041; Ager, Joel/0000-0001-9334-9751 FU NIDCR [R01 DE019284, RO3 DE16868]; NIH [R01 GM65354]; Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the U.S. Department of Energy [DE-AC02-05CH11231] FX This research was supported by NIDCR R01 DE019284 and NIDCR RO3 DE16868 to TA. Funding for instrumentation was in part provided by NIH grant R01 GM65354. Funding for LS, SI-M, JWA and ROR was provided by the Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the U.S. Department of Energy under Contract no. DE-AC02-05CH11231. 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. In addition, the authors gratefully acknowledge the expertise and assistance of Prof. Ian Sinclair for synchrotron radiation micro-computed tomography, Dr. Eduardo Saiz for scanning electron microscopy as well as Dr. Alexander Hexemer and Dr. Alexander Mastroianni during the acquisition of the small angle X-ray scattering data. NR 74 TC 51 Z9 51 U1 2 U2 27 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 8756-3282 J9 BONE JI Bone PD JUN PY 2010 VL 46 IS 6 BP 1564 EP 1573 DI 10.1016/j.bone.2010.02.014 PG 10 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 607EF UT WOS:000278481000011 PM 20171304 ER PT J AU Hong, TZ Fisk, WJ AF Hong, Tianzhen Fisk, William J. TI Assessment of energy savings potential from the use of demand controlled ventilation in general office spaces in California SO BUILDING SIMULATION LA English DT Article DE building simulation; building energy standard; demand controlled ventilation; energy savings AB A prototypical office building meeting the prescriptive requirements of the 2008 California Building Energy Efficiency Standards (Title 24) was used in EnergyPlus simulations to calculate the energy savings potential of demand controlled ventilation (DCV) in five typical California climates per three design occupancy densities and two minimum ventilation rates. The assumed minimum ventilation rates in offices without DCV, based on two different measurement methods employed in a large survey, were 38 and 13 L/s per occupant. The results of the life cycle cost analysis show DCV is cost effective for office spaces if the typical minimum ventilation rate without DCV is 38 L/s per person, except at the low design occupancy of 10.8 people per 100 m(2) in climate zones 3 (north coast) and 6 (south coast). DCV was not found to be cost effective if the typical minimum ventilation rate without DCV is 13 L/s per occupant, except at high design occupancy of 21.5 people per 100 m(2) in climate zones 14 (desert) and 16 (mountains). Until the large uncertainties about the base case ventilation rates in offices without DCV are reduced, the case for requiring DCV in general office spaces will be a weak case. Under the Title 24 standard office occupant density of 10.8 people per 100 m(2), DCV becomes cost effective when the base case minimum ventilation rate is greater than 42.5, 43.0, 24.0, 19.0, and 18.0 L/s per person for climate zones 3, 6, 12, 14, and 16, respectively. C1 [Hong, Tianzhen; Fisk, William J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Hong, TZ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM thong@lbl.gov RI Hong, Tianzhen/D-3256-2013 FU California Energy Commission under DOE [DE-AC02-05CH11231] FX This document was prepared as an account of work sponsored by California Energy Commission under DOE Contract No. DE-AC02-05CH11231. The authors thank Brad Meister at the California Energy Commission for contract management, Mark Hydeman and Steve Taylor at Taylor Engineering for providing cost data for the demand controlled ventilation systems and Mike Sohn and Fred Buhl from Lawrence Berkeley National Laboratory for reviewing a draft of this report. NR 15 TC 1 Z9 1 U1 0 U2 9 PU TSINGHUA UNIV PRESS PI BEIJING PA TSINGHUA UNIV, RM A703, XUEYAN BLDG, BEIJING, 10084, PEOPLES R CHINA SN 1996-3599 J9 BUILD SIMUL-CHINA JI Build. Simul. PD JUN PY 2010 VL 3 IS 2 BP 117 EP 124 DI 10.1007/s12273-010-0001-8 PG 8 WC Thermodynamics; Construction & Building Technology SC Thermodynamics; Construction & Building Technology GA 746ZW UT WOS:000289290900003 ER PT J AU Muramatsu, Y Gullikson, EM AF Muramatsu, Yasuji Gullikson, Eric M. TI Total Electron Yield Ratios between Sample Components in Total-Electron-Yield Soft X-ray Absorption Spectroscopy SO BUNSEKI KAGAKU LA Japanese DT Article DE X-ray absorption; soft X-ray; total electron yield; synchrotron radiation ID DEPOSITION AB To clarify the relationship between the total electron yield (TEY) and the composition ratio in the mixture samples, TEY X-ray absorption spectra (XAS) of some mixture samples were measured using synchrotron radiation. From the TEY-XAS of the sp(2)/sp(3)-carbon mixtures (carbon black/diamond) and the boron/carbon mixtures (amorphous boron/carbon black), TEY ratios between the compositions can be obtained as 0.12 for diamond to carbon black and as 0.32 for carbon black to boron. By using the measured TEY ratios, TEY-XAS profiles of the mixture samples can be well reproduced by the synthesized spectra. It is therefore confirmed that composition ratio will be quantitatively analyzed from the TEY-XAS measurements considering the TEY ratios among the compositions. C1 [Muramatsu, Yasuji] Univ Hyogo, Grad Sch Engn, Himeji, Hyogo 6700063, Japan. [Gullikson, Eric M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Muramatsu, Y (reprint author), Univ Hyogo, Grad Sch Engn, 2167 Shosha, Himeji, Hyogo 6700063, Japan. NR 7 TC 2 Z9 2 U1 1 U2 6 PU JAPAN SOC ANALYTICAL CHEMISTRY PI TOKYO PA 26-2 NISHIGOTANDA 1 CHOME SHINAGAWA-KU, TOKYO, 141, JAPAN SN 0525-1931 J9 BUNSEKI KAGAKU JI Bunseki Kagaku PD JUN PY 2010 VL 59 IS 6 BP 455 EP 461 PG 7 WC Chemistry, Analytical SC Chemistry GA 611UN UT WOS:000278849100004 ER PT J AU Nakano, J Jacques, PJ AF Nakano, Jinichiro Jacques, Pascal J. TI Effects of the thermodynamic parameters of the hcp phase on the stacking fault energy calculations in the Fe-Mn and Fe-Mn-C systems SO CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY LA English DT Article DE Thermodynamics; TWIP/TRIP steels; CALPHAD; Fe-Mn; Twins ID FCC/HCP MARTENSITIC-TRANSFORMATION; HADFIELD MANGANESE STEEL; SINGLE-CRYSTALS; DRIVING-FORCE; SI ALLOYS; IRON; AUSTENITE; STABILITY; DEPENDENCE; DEFORMATION AB The thermodynamic parameters of the epsilon (hcp) phase with respect to the gamma (fcc) phase in the Fe-Mn system have been re-visited by utilizing the least squares refinement method applied to experimental values of enthalpy and T(0) temperatures. The new best converged equilibrium description produces Delta G(fcc-hcp) without affecting the stable phase diagram of the entire Fe-Mn system. Based on the proposed parameters, the stacking fault energy (SFE), related to the stability of the fcc phase with respect to the hcp phase, was then evaluated in the Fe-Mn and Fe-Mn-C systems as a function of Mn and C contents as well as temperature. The SFE was found to be more sensitive to temperature for paramagnetic alloys while it is more sensitive to the Mn content for antiferromagnetic alloys. Through this study, it is proven that a phase diagram, T(0) temperature, composition and temperature dependence of the SEE can be all predicted by a single set of thermodynamic parameters. A consistent reproducibility of the present model was confirmed for 0-29 wt% of Mn by experimental data used for optimization. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Nakano, Jinichiro] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Jacques, Pascal J.] Catholic Univ Louvain, Dept Sci Mat & Procedes, IMAP, B-1348 Louvain, Belgium. RP Nakano, J (reprint author), US DOE, Natl Energy Technol Lab, 1450 Queen Ave SW, Albany, OR 97321 USA. EM jinichiro@gmail.com; pascal.jacques@uclouvain.be FU Walloon Region FX This work was carried out with the financial support of the Walloon Region (Winnonnat programme). P.J. Jacques acknowledges the FNRS. Valuable discussion with Prof. John Agren at the Royal Institute of Technology, Sweden is greatly appreciated. The authors are grateful to Prof. Zi-Kui Liu at Pennsylvania State University, USA for his valuable inputs on parameter optimization. NR 72 TC 52 Z9 55 U1 2 U2 34 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0364-5916 J9 CALPHAD JI Calphad-Comput. Coupling Ph. Diagrams Thermochem. PD JUN PY 2010 VL 34 IS 2 BP 167 EP 175 DI 10.1016/j.calphad.2010.02.001 PG 9 WC Thermodynamics; Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Thermodynamics; Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 616OC UT WOS:000279217700002 ER PT J AU Groat, LA Rossman, GR Dyar, MD Turner, D Piccoli, PMB Schultz, AJ Ottolini, L AF Groat, Lee A. Rossman, George R. Dyar, M. Darby Turner, David Piccoli, Paula M. B. Schultz, Artrthur J. Ottolini, Luisa TI CRYSTAL CHEMISTRY OF DARK BLUE AQUAMARINE FROM THE TRUE BLUE SHOWING, YUKON TERRITORY, CANADA SO CANADIAN MINERALOGIST LA English DT Article DE aquamarine; beryl; color; electron microprobe; optical absorption; Mossbauer spectroscopy; X-ray diffraction; neutron diffraction; Yukon Territory; Canada ID FLIGHT NEUTRON-DIFFRACTION; ABSORPTION SPECTROSCOPY; BERYL; IRON; MOSSBAUER; SPECTRA; CORDIERITE; MINERALS; HYDROGEN; VARIETY AB Dark blue aquamarine and beryl were discovered at the True Blue showing in the southern Yukon Territory in 2003. Electron-microprobe-derived compositions show up to 5.39 wt.% FeO in the darkest material, which is among the highest Fe concentration known for true beryl. The Al site totals average 2.05, with a maximum of 2.10 apfu, which implies that there is more Fe present in the sample than can be accommodated at the Al position. Charge-balance considerations and Mossbauer spectra show that the Fe is present as both Fe(2+) and Fe(3+). Optical absorption and Mossbauer spectra and the results of the X-ray and neutron single-crystal refinements suggest that there is very little Fe at the tetrahedral or channel sites. Previous investigators have proposed that the color of blue beryl is due to intervalence charge-transfer (IVCT) between Fe(2+) and Fe(3+) cations. The anisotropy of the optical absorption spectra suggest that if the mechanism responsible for the color in our samples is IVCT, the vector between the ions involved must be oriented approximately parallel to c. The only vectors that fulfill this condition and have a realistic length (2.300 angstrom) are 4d-Al and 6g-Be. Given the close proximity of the Si positions (closer than any anion sites), it is difficult to conceive of the substitution taking place at the interstitial 4d site. However, Fe could substitute at the interstitial 6g position, but likely only in very small amounts, because of the need to maintain local charge-balance. Unfortunately, there is no evidence of this in the Mossbauer spectra or in difference-Fourier maps of the X-ray-and neutron-diffraction data. For the former technique, it is likely that any doublet arising from Fe in the 6gO(6) polyhedron is too similar to the Fe in the AlO(6) octahedra to be resolved for either Fe(2+) or Fe(3+). Calculations suggest that the concentration of Fe involved in the IVCT process is 0.08 apfu Fe, of which half (0.04 apfu, 0.17 e(-)) would potentially be at the interstitial site. This amount of electrons and this nuclear density are likely too small to be seen on the difference-Fourier maps. C1 [Groat, Lee A.; Turner, David] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada. [Rossman, George R.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA. [Dyar, M. Darby] Mt Holyoke Coll, Dept Astron, S Hadley, MA 01075 USA. [Piccoli, Paula M. B.; Schultz, Artrthur J.] Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. [Ottolini, Luisa] CNR Ist Geosci & Georisorse IGG, Sez Pavia, I-27100 Pavia, Italy. RP Groat, LA (reprint author), Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada. EM lgroat@eos.ubc.ca OI Rossman, George/0000-0002-4571-6884 FU Natural Sciences and Engineering Research Council of Canada; National Science Foundation (USA) [EAR-0337816, EAR-0439161]; White Rose Foundation FX We thank E. C. Sklute for her assistance with Mossbauer data processing, and P. C. Piilonen for useful discussions. The authors thank M. Parker for editing the manuscript. The manuscript was improved by comments from P. F. Zanazzi, K. Schmetzer, C. Aurisicchio, and R. F. Martin. Financial support was provided by the Natural Sciences and Engineering Research Council of Canada in the form of Research Grants to LAG, the National Science Foundation (USA) grants EAR-0337816 to GRR and EAR-0439161 to MDD, and by a White Rose Foundation grant to GRR. NR 53 TC 12 Z9 12 U1 0 U2 15 PU MINERALOGICAL ASSOC CANADA PI OTTAWA PA PO BOX 78087, MERILINE POSTAL OUTLET, 1460 MERIVALE RD, OTTAWA, ONTARIO K2E 1B1, CANADA SN 0008-4476 J9 CAN MINERAL JI Can. Mineral. PD JUN PY 2010 VL 48 IS 3 BP 597 EP 613 DI 10.3749/canmin.48.3.597 PG 17 WC Mineralogy SC Mineralogy GA 632HZ UT WOS:000280414600011 ER PT J AU Atwater, MA Phillips, J Leseman, ZC AF Atwater, Mark A. Phillips, Jonathan Leseman, Zayd C. TI The effect of powder sintering on the palladium-catalyzed formation of carbon nanofibers from ethylene-oxygen mixtures SO CARBON LA English DT Article ID DECOMPOSITION; DIFFUSION; ACETYLENE; PARTICLES; BEHAVIOR; NICKEL AB Carbon nanofiber growth on palladium particles from ethylene-oxygen mixtures was investigated with respect to thermal history. Electron microscopy, combined with focused ion beam cross-sectioning show particles sinter quickly, but can be stabilized by the addition of a short carbon deposition step at a temperature below the general reaction temperature. This step generates a thin layer of carbon on the catalyst which reduces sintering once the temperature is raised to the optimal reaction temperature. For example, high temperature (e.g. 500 degrees C) catalyst pre-treatment leads to catalyst particle sintering, and subsequent fiber growth produces large diameter fibers. In contrast, small diameter fibers form on catalyst particles pretreated at low temperature (ca. 350 degrees C), even if the fibers are grown at a temperature at which deposition rates are faster (e.g. 550 degrees C). These results led to the development of unique multiple temperature fiber growth protocols that produce smaller diameter fibers while improving the deposition rate. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Atwater, Mark A.; Phillips, Jonathan; Leseman, Zayd C.] Univ New Mexico, Albuquerque, NM 87131 USA. [Phillips, Jonathan] Los Alamos Natl Labs, Los Alamos, NM 87545 USA. RP Leseman, ZC (reprint author), Univ New Mexico, MSC01 1150, Albuquerque, NM 87131 USA. EM zleseman@unm.edu RI Phillips, Jonathan/D-3760-2011 FU New Mexico Space Grant Consortium FX The authors gratefully acknowledge the support of the New Mexico Space Grant Consortium. This work was completed in part at the University of New Mexico Manufacturing Training and Technology Center. NR 25 TC 10 Z9 10 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 J9 CARBON JI Carbon PD JUN PY 2010 VL 48 IS 7 BP 1932 EP 1938 DI 10.1016/j.carbon.2010.01.060 PG 7 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 586OT UT WOS:000276920900010 ER PT J AU Zhong, J Guo, JH Gao, B Chiou, JW Li, J Chu, WS Pong, WF Chang, CL Luo, Y Wu, ZY AF Zhong, Jun Guo, Jinghua Gao, Bin Chiou, Jau-Wern Li, Jiong Chu, Wangsheng Pong, Way-Faung Chang, Chinglin Luo, Yi Wu, Ziyu TI Understanding the scattering mechanism of single-walled carbon nanotube based gas sensors SO CARBON LA English DT Article ID X-RAY-ABSORPTION; INTERCALATED GRAPHITE; CHEMICAL SENSORS; FINE-STRUCTURE; SPECTROSCOPY; ADSORPTION; PHOTOEMISSION; SENSITIVITY; BUNDLES AB In the interaction between gas molecules with single-walled carbon nanotube (SWCNT) we show that as a result of collisions the gas scattering contributes with an important background signal and should be considered in SWCNT-based gas sensors. Experimental evidence of the collision-induced tube wall deformation is demonstrated using in situ X-ray absorption near-edge structure spectroscopy. Results support the occurrence of the scattering process and show how gas collisions may affect the electronic structure of SWCNTs. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Zhong, Jun; Gao, Bin; Li, Jiong; Chu, Wangsheng; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. [Zhong, Jun; Guo, Jinghua; Chiou, Jau-Wern] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Gao, Bin; Luo, Yi] Royal Inst Technol, S-10691 Stockholm, Sweden. [Chiou, Jau-Wern; Pong, Way-Faung; Chang, Chinglin] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. [Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China. [Wu, Ziyu] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China. RP Wu, ZY (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. EM wuzy@ustc.edu.cn RI Gao, Bin/B-3347-2012; Luo, Yi/B-1449-2009; OI Gao, Bin/0000-0003-1092-7785; Luo, Yi/0000-0003-0007-0394; Chang, Ching-Lin/0000-0001-8547-371X FU National Natural Science Foundation of China [10125523, 10805054]; Chinese Academy of Sciences [KJCX2-YW-N42]; National Basic Research Program of China [2009CB930804]; Swedish Research Council; Swedish National Infrastructure for Computing (SNIC); US Department of Energy [DE-AC02-05CH11231] FX We acknowledge K. Bolton and A. Marcelli for many useful discussions. Z. Wu acknowledges the financial support of the Outstanding Youth Fund (10125523) of the National Natural Science Foundation of China, the Knowledge Innovation Program of the Chinese Academy of Sciences (KJCX2-YW-N42), and the National Basic Research Program of China (2009CB930804). Y. Luo acknowledges the support of the Swedish Research Council (VR), and the Swedish National Infrastructure for Computing (SNIC). J. Zhong acknowledges the financial support of the National Natural Science Foundation of China (10805054). The Advanced Light Source is a national facility supported by the US Department of Energy under the Contract No. DE-AC02-05CH11231. NR 36 TC 9 Z9 9 U1 2 U2 15 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 J9 CARBON JI Carbon PD JUN PY 2010 VL 48 IS 7 BP 1970 EP 1976 DI 10.1016/j.carbon.2010.02.003 PG 7 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 586OT UT WOS:000276920900015 ER PT J AU Fifield, LS Grate, JW AF Fifield, Leonard S. Grate, Jay W. TI Hydrogen-bond acidic functionalized carbon nanotubes (CNTs) with covalently-bound hexafluoroisopropanol groups SO CARBON LA English DT Article ID ELECTROCHEMICAL REDUCTION; DIAZONIUM SALTS; ORGANIC LAYERS; CHEMISTRY; POLYMERS; SENSORS AB Hydrogen-bond acidic fluoroalcohol groups are directly attached to the backbone of single walled carbon nanotubes (SWCNTs) via carbon-carbon bonds without the introduction of intermediate heteroatoms. Hexafluoroisopropanol functional groups are exceptionally strong hydrogen-bond acids, and are added to the nanotube surface (via the substituted benzene para position) as 2-phenyl-1,1,1,3,3,3-hexafluoro-2-propanol (i.e., -(p-C(6)H(4))C(CF(3))(2)OH) using the aryl diazonium approach to create hydrogen-bond acidic carbon nanotube (CNT) surfaces. These groups can promote strong hydrogen-bonding interactions with matrix materials in composites or with molecular species to be adsorptively concentrated and sensed. In the latter case, this newly developed material could potentially find useful application in chemical sensors and in CNT-based preconcentrator devices for the detection of hydrogen-bond basic analytes such as chemical warfare agents and explosives, as has been demonstrated for fluoroalcohol-containing polymers. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Fifield, Leonard S.; Grate, Jay W.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Fifield, LS (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM leonard.fifield@pnl.gov RI Fifield, Leonard/E-9773-2010 OI Fifield, Leonard/0000-0002-7432-5356 FU US DOE; Laboratory Directed Research and Development Program FX A portion of this research was carried out in the William R. Wiley Environmental Molecular Sciences Laboratory, a US DOE scientific user facility operated for the DOE by the Pacific Northwest National Laboratory (PNNL). PNNL is a multi-program national laboratory operated for the US Department of Energy by Battelle Memorial Institute. The Laboratory Directed Research and Development Program supported this research. NR 21 TC 15 Z9 15 U1 2 U2 20 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 J9 CARBON JI Carbon PD JUN PY 2010 VL 48 IS 7 BP 2085 EP 2088 DI 10.1016/j.carbon.2010.02.019 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 586OT UT WOS:000276920900029 ER PT J AU Zhou, YB Angelici, RJ Woo, LK AF Zhou, Yibo Angelici, Robert J. Woo, L. Keith TI Bulk Gold-Catalyzed Reactions of Diazoalkanes with Amines and O-2 to Give Enamines SO CATALYSIS LETTERS LA English DT Article DE Gold; Catalysis; Amines; Enamines; Oxidation ID RUTHENIUM PORPHYRIN COMPLEXES; NON-NANOGOLD CATALYSIS; H INSERTION REACTIONS; N-H; ETHYL DIAZOACETATE; CARBENE COMPLEXES; AEROBIC OXIDATION; ONE-POT; LEAD-TETRAACETATE; SECONDARY-AMINES AB Bulk gold powder, consisting of approximately 5-50 mu m particles, catalyzes reactions of diazoalkanes E(H)C=N-2, where E is CO2Et or PhC(O), with amines (RRNH)-R-1-N-2 and O-2 to give enamine products ((RRN)-R-1-N-2) (E)C=CH(E) in 58-94% yield. The reactions are proposed to occur by initial formation of surface-bound (E)(H)C: carbene groups that are attacked by nucleophilic amines. The enamine products are very different than those obtained in reactions catalyzed by homogeneous transition metal complexes. These reactions of diazoalkanes, amines, and O-2 represent a new type of bulk gold-catalyzed reaction. C1 [Zhou, Yibo; Angelici, Robert J.; Woo, L. Keith] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Zhou, Yibo; Angelici, Robert J.; Woo, L. Keith] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Angelici, RJ (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM yibozhou@iastate.edu; angelici@iastate.edu; kwoo@iastate.edu FU U. S. Department of Energy with Iowa State University [DE-AC02-07CH11358]; NSF [CHE-0809901] FX This research was supported by the U. S. Department of Energy under contract No. DE-AC02-07CH11358 with Iowa State University and funds from NSF grant CHE-0809901. NR 68 TC 18 Z9 18 U1 0 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1011-372X J9 CATAL LETT JI Catal. Lett. PD JUN PY 2010 VL 137 IS 1-2 BP 8 EP 15 DI 10.1007/s10562-010-0339-7 PG 8 WC Chemistry, Physical SC Chemistry GA 597TZ UT WOS:000277786100002 ER PT J AU Yin, HF Ma, Z Chi, MF Dai, S AF Yin, Hongfeng Ma, Zhen Chi, Miaofang Dai, Sheng TI Activation of Dodecanethiol-Capped Gold Catalysts for CO Oxidation by Treatment with KMnO4 or K2MnO4 SO CATALYSIS LETTERS LA English DT Article DE Gold nanoparticles; Au/SiO2; Au/TiO2; Au/C; KMnO4; K2MnO4; Fenton's reagent ID MESOPOROUS SILICA MATERIALS; LOW-TEMPERATURE OXIDATION; NIAU ALLOY NANOPARTICLES; IN-SITU SURFACTANT; AU NANOPARTICLES; PERFORMANCE-CHARACTERISTICS; SELECTIVE OXIDATION; SYNTHESIS DETAILS; FACILE SYNTHESIS; PHASE OXIDATION AB Dodecanethiol-protected gold nanoparticles were deposited onto fumed SiO2 (Cab-O-Sil) via colloidal deposition. The catalyst was treated with a strongly oxidative KMnO4 or K2MnO4 solution. Low-temperature conversion in catalytic CO oxidation increased dramatically following the oxidative treatment and subsequent thermal activation at 300 degrees C to burn off residual organic species. On the other hand, the treatment with Fenton's reagent did not lead to any positive effect. The influences of the average sizes of pre-synthesized gold particles (1.8, 2.1, 3.9, 9.9 nm) and the choice of different supports (SiO2, TiO2, C) were investigated, and relevant characterization using TG/DTG, XRD, TEM, EDX, and HAADF was conducted. The catalyst stability as a function of time on stream was also surveyed. This work establishes the beneficial effect of treating dodecanethiol-capped gold catalysts by KMnO4 or K2MnO4. C1 [Yin, Hongfeng; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Ma, Zhen] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China. [Chi, Miaofang] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Sci, POB 2008, Oak Ridge, TN 37831 USA. EM dais@ornl.gov RI Ma, Zhen/F-1348-2010; Chi, Miaofang/Q-2489-2015; Dai, Sheng/K-8411-2015 OI Ma, Zhen/0000-0002-2391-4943; Chi, Miaofang/0000-0003-0764-1567; Dai, Sheng/0000-0002-8046-3931 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]; Division of Scientific User Facilities, DOE Office of Science, Basic Energy Sciences FX Research sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy under contract DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. This research was also supported by the appointment for H.F. Yin to the ORNL Research Associates Program, administered by Oak Ridge Associated Universities. The electron microscopy experiments were carried out at the Oak Ridge National Laboratory SHaRE User Facility, which is supported by the Division of Scientific User Facilities, DOE Office of Science, Basic Energy Sciences. NR 53 TC 20 Z9 20 U1 4 U2 35 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1011-372X J9 CATAL LETT JI Catal. Lett. PD JUN PY 2010 VL 136 IS 3-4 BP 209 EP 221 DI 10.1007/s10562-010-0316-1 PG 13 WC Chemistry, Physical SC Chemistry GA 595FC UT WOS:000277595100006 ER PT J AU Benmore, CJ Monteiro, PJM AF Benmore, C. J. Monteiro, Paulo J. M. TI The structure of alkali silicate gel by total scattering methods SO CEMENT AND CONCRETE RESEARCH LA English DT Article DE Alkali-aggregate reaction; Amorphous material; Deterioration; Pair distribution function; Total scattering; X-ray ID X-RAY-DIFFRACTION; NEUTRON-DIFFRACTION; AGGREGATE REACTION; NETWORK GLASSES; KANEMITE; ADMIXTURES; WATER; NMR C1 [Monteiro, Paulo J. M.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. [Benmore, C. J.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Monteiro, PJM (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. RI Chen, Wei/A-5694-2010; OI Benmore, Chris/0000-0001-7007-7749 NR 40 TC 13 Z9 13 U1 1 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-8846 J9 CEMENT CONCRETE RES JI Cem. Concr. Res. PD JUN PY 2010 VL 40 IS 6 BP 892 EP 897 DI 10.1016/j.cemconres.2010.02.006 PG 6 WC Construction & Building Technology; Materials Science, Multidisciplinary SC Construction & Building Technology; Materials Science GA 599HF UT WOS:000277901200007 ER PT J AU Bernal, SA de Gutierrez, RM Provis, JL Rose, V AF Bernal, Susan A. Mejla de Gutierrez, Ruby Provis, John L. Rose, Volker TI Effect of silicate modulus and metakaolin incorporation on the carbonation of alkali silicate-activated slags SO CEMENT AND CONCRETE RESEARCH LA English DT Article DE Alkali-activated slag; Metakaolin; Silicate modulus; Carbonation; High-resolution X-ray diffraction ID BLAST-FURNACE SLAG; C-S-H; HYDRATION PRODUCTS; PORTLAND-CEMENT; INFRARED-SPECTROSCOPY; FLY-ASH; CALCIUM; CONCRETE; MORTARS; PASTES AB Accelerated carbonation is induced in pastes and mortars produced from alkali silicate-activated granulated blast furnace slag (GBFS)-metakaolin (MK) blends, by exposure to CO(2)-rich gas atmospheres Uncarbonated specimens show compressive strengths of up to 63 MPa after 28 days of curing when GBFS is used as the sole binder, and this decreases by 40-50% upon complete carbonation The final strength of carbonated samples is largely independent of the extent of metakaolin incorporation up to 20% Increasing the metakaolin content of the binder leads to a reduction in mechanical strength, more rapid carbonation, and an increase in capillary sorptivity. A higher susceptibility to carbonation is identified when activation is carried out with a lower solution modulus (SiO(2)/Na(2)O ratio) in metakaolin-free samples, but this trend is reversed when metakaolin is added due to the formation of secondary aluminosilicate phases High-energy synchrotron Xray diffractometry of uncarbonated paste samples shows that the main reaction products in alkali-activated GBFS/MK blends are C-S-H gels, and aluminosilicates with a zeolitic (gismondine) structure The main crystalline carbonation products are calcite in all samples and trona only in samples containing no metakaolin, with carbonation taking place in the C-S-H gels of all samples, and involving the free Na(+) present in the pore solution of the metakaolin-free samples Samples containing metakaolin do not appear to have the same availability of Na(+) for carbonation, indicating that this is more effectively bound in the presence of a secondary aluminosilicate gel phase It is clear that claims of exceptional carbonation resistance in alkali-activated binders are not universally true, but by developing a fuller mechanistic understanding of this process, it will certainly be possible to Improve performance in this area (C) 2010 Elsevier Ltd. All rights reserved. C1 [Bernal, Susan A.; Mejla de Gutierrez, Ruby] Univ Valle, CENM, Dept Mat Engn, Composite Mat Grp, Cali, Colombia. [Provis, John L.] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia. [Rose, Volker] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Bernal, SA (reprint author), Univ Valle, CENM, Dept Mat Engn, Composite Mat Grp, Cali, Colombia. RI Chen, Wei/A-5694-2010; Bernal, Susan /E-8938-2011; Provis, John/A-7631-2008; Rose, Volker/B-1103-2008; OI Provis, John/0000-0003-3372-8922; Rose, Volker/0000-0002-9027-1052; Bernal, Susan A/0000-0002-9647-3106; MEJIA DE GUTIERREZ, RUBY/0000-0002-5404-2738 FU Universidad del Valle (Colombia); Institut Colombian para el Desarrollo de la Ciencia y Tecnologia "Francisco Jose de Caldas" (COLCIENCIAS); Center of Excellence of Novel Materials (CENM); U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Australian Research Council (ARC) FX This study was sponsored by the Universidad del Valle (Colombia), Institut Colombian para el Desarrollo de la Ciencia y Tecnologia "Francisco Jose de Caldas" (COLCIENCIAS) and the Center of Excellence of Novel Materials (CENM). We would like to thank Carmen Elisa Guerrero for the assistance with thermogravinnetry. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The participation ofJLP was funded by the Australian Research Council (ARC), including partial funding through the Particulate Fluids Processing Centre, a Special Research Centre of the ARC NR 55 TC 62 Z9 64 U1 8 U2 44 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-8846 J9 CEMENT CONCRETE RES JI Cem. Concr. Res. PD JUN PY 2010 VL 40 IS 6 BP 898 EP 907 DI 10.1016/j.cemconres.2010.02.003 PG 10 WC Construction & Building Technology; Materials Science, Multidisciplinary SC Construction & Building Technology; Materials Science GA 599HF UT WOS:000277901200008 ER PT J AU Costello, AL Alam, TM AF Costello, Alison L. Alam, Todd M. TI Investigating the impact of cholesterol on magnetically aligned sphingomyelin/cholesterol multilamellar vesicles using static P-31 NMR SO CHEMISTRY AND PHYSICS OF LIPIDS LA English DT Article DE Solid state nuclear magnetic resonance; Magnetic alignment; Sphingomyelin; cholesterol ID MOLECULAR-DYNAMICS SIMULATION; LIQUID-ORDERED PHASE; BILAYER-MEMBRANES; LATERAL DIFFUSION; MODEL MEMBRANES; DIPALMITOYLPHOSPHATIDYLCHOLINE BILAYERS; PHOSPHOLIPID-MEMBRANES; MECHANICAL-PROPERTIES; LECITHIN BILAYERS; HEADGROUP MOTION AB The effect of cholesterol (5-40 mol%) on the magnetic induced orientation of sphingomyelin/cholesterol multilamellar vesicles (MLVs) was examined using static solid state P-31 NMR spectroscopy. The orientation was modeled assuming an ellipsoidal deformation of the vesicles and was monitored as a function of cholesterol concentration and temperature. In addition, the static P-31 chemical shift anisotropy (CSA) was used to assess the motional and dynamical changes occurring in the bilayer are reported. An exploration of the factors determining the magnetic orientation in sphingomyelin/cholesterol bilayers from the gel (s(o)) to liquid crystalline (or liquid-ordered, l(o)) phases is presented and discussed. (C) 2010 Elsevier Ireland Ltd. All rights reserved. C1 [Costello, Alison L.; Alam, Todd M.] Sandia Natl Labs, Dept Elect & Nanostructured Mat, Albuquerque, NM 87185 USA. RP Alam, TM (reprint author), Sandia Natl Labs, Dept Elect & Nanostructured Mat, POB 5800,MS 0886, Albuquerque, NM 87185 USA. EM tmalam@sandia.gov FU Sandia Laboratory Directed Research Development program; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported by the Sandia Laboratory Directed Research Development program. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. The authors would like to thank Sarah McIntyre for the anisotropic T2E analysis. NR 62 TC 8 Z9 8 U1 0 U2 8 PU ELSEVIER IRELAND LTD PI CLARE PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000, IRELAND SN 0009-3084 J9 CHEM PHYS LIPIDS JI Chem. Phys. Lipids PD JUN PY 2010 VL 163 IS 6 BP 506 EP 513 DI 10.1016/j.chemphyslip.2010.04.001 PG 8 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 627IU UT WOS:000280033500007 PM 20385112 ER PT J AU Wang, WF AF Wang Wen-Feng CA BABAR Collaboration TI Precise measurement of the e(+)e(-) -> pi(+)pi(-)(gamma) cross section with the initial state radiation method at BABAR SO CHINESE PHYSICS C LA English DT Article; Proceedings Paper CT International Workshop on e+e- Collisions from Phi to Psi (PHIPSI09) CY OCT 13-16, 2009 CL Beijing, PEOPLES R CHINA DE pion form factor; ISR; g-2; BABAR ID PION FORM-FACTOR; CMD-2 DETECTOR; TAGGED PHOTONS; ENERGY-RANGE; MONTE-CARLO; MUON; RETURN AB We present a precise BABAR measurement on the cross section of the process e(+)e(-) -> pi(+)pi(-)(gamma) from threshold to an energy of 3 GeV with the initial state radiation (ISR) technique, using 232 fb(-1) of data collected with the BABAR detector at e(+)e(-) center-of-mass energies near 10.58 GeV. The ISR luminosity is determined from a study of the leptonic process e(+)e(-) -> mu(+)mu(-)gamma(gamma). The leading-order hadronic contribution to the muon magnetic anomaly calculated using the pi pi cross section measured from threshold to 1.8 GeV is (514.1 +/- 2.2(stat)+/- 3.1(syst)) x 10(-10). C1 [Wang Wen-Feng; BABAR Collaboration] Univ Notre Dame, SLAC, Menlo Pk, CA 94025 USA. RP Wang, WF (reprint author), Univ Notre Dame, SLAC, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. EM wangwf@slac.stanford.edu RI Wang, Wenefng/G-6312-2011 NR 23 TC 0 Z9 0 U1 1 U2 1 PU CHINESE PHYSICAL SOC PI BEIJING PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA SN 1674-1137 J9 CHINESE PHYS C JI Chin. Phys. C PD JUN PY 2010 VL 34 IS 6 BP 692 EP 697 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 606MQ UT WOS:000278429500015 ER PT J AU Passera, M Marciano, WJ Sirlin, A AF Passera, M. Marciano, W. J. Sirlin, A. TI Muon g-2 discrepancy: new physics or a relatively light Higgs? SO CHINESE PHYSICS C LA English DT Article; Proceedings Paper CT International Workshop on e+e- Collisions from Phi to Psi (PHIPSI09) CY OCT 13-16, 2009 CL Beijing, PEOPLES R CHINA DE muon anomalous magnetic moment; Standard Model Higgs boson ID ANOMALOUS MAGNETIC-MOMENT; STANDARD-MODEL; HADRONIC CONTRIBUTIONS; E(+)E(-) ANNIHILATION; TAU-DECAY; ELECTRON; MASS; SUPERSYMMETRY; PREDICTIONS; PRECISION AB After a brief review of the muon g-2 status, we discuss hypothetical errors in the Standard Model prediction that might explain the present discrepancy with the experimental value. None of them seems likely. In particular, a hypothetical increase of the hadroproduction cross section in low-energy e(+)e(-) collisions could bridge the muon g-2 discrepancy, but it is shown to be unlikely in view of current experimental error estimates. If, nonetheless, this turns out to be the explanation of the discrepancy, then the 95% CL upper bound on the Higgs boson mass is reduced to about 135 GeV which, in conjunction with the experimental 114.4 GeV 95% CL lower bound, leaves a narrow window for the mass of this fundamental particle. C1 [Passera, M.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy. [Marciano, W. J.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Sirlin, A.] NYU, Dept Phys, New York, NY 10003 USA. RP Passera, M (reprint author), Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy. EM massimo.passera@pd.infn.it NR 74 TC 7 Z9 7 U1 0 U2 0 PU CHINESE PHYSICAL SOC PI BEIJING PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA SN 1674-1137 J9 CHINESE PHYS C JI Chin. Phys. C PD JUN PY 2010 VL 34 IS 6 BP 735 EP 740 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 606MQ UT WOS:000278429500021 ER PT J AU Gu, L Zhu, SJ Hamilton, JH Ramayya, AV Hwang, JK Liu, SH Wang, JG Luo, YX Rasmussen, JO Lee, IY Xu, Q Yeoh, EY Ma, WC AF Gu Long Zhu Sheng-Jiang Hamilton, J. H. Ramayya, A. V. Hwang, J. K. Liu, S. H. Wang Jian-Guo Luo, Y. X. Rasmussen, J. O. Lee, I. Y. Xu Qiang Yeoh, E. Y. Ma, W. C. TI Collective Band Structures and Identification of One-Phonon and Two-Phonon gamma-Vibrational Bands in Tc-109 SO CHINESE PHYSICS LETTERS LA English DT Article ID NEUTRON-RICH MO-106; ROTATIONAL BANDS; NUCLEUS; FISSION AB The high spin states of the neutron-rich Tc-109 nucleus are reinvestigated by observing prompt gamma-rays from the spontaneous fission of Cf-252. The previously known yrast band based on the 7/2(+) state is updated. A side band built on the 11/2(+) state is expanded and a new band based on the 15/2(+) state is identified. Band crossing in the yrast band occurs around h omega approximate to 0.36 MeV. This band crossing is associated with the alignment of two h(11/2) neutrons according to the cranked shell model calculations. The band based on the 11/2(+) state is proposed as a candidate for the one-phonon gamma-vibrational band, and the band built on the 15/2(+) state is proposed as a candidate for the two-phonon gamma-vibrational band. Other characteristics for the observed bands are discussed. C1 [Gu Long; Zhu Sheng-Jiang; Wang Jian-Guo; Xu Qiang; Yeoh, E. Y.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Zhu Sheng-Jiang; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Liu, S. H.; Luo, Y. X.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. [Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Ma, W. C.] Mississippi State Univ, Dept Phys, Mississippi State, MS 39762 USA. RP Gu, L (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. EM zhushj@mail.tsinghua.edu.cn OI Hwang, Jae-Kwang/0000-0002-4100-3473 FU National Natural Science Foundation of China [10775078, 10975082]; National Basic Research Program of China [2007CB815005]; Special Program of Higher Education of China [20070003149]; U.S. Department of Energy [DE-FG05-88ER40407, DE-AC03-76SF00098] FX Supported by the National Natural Science Foundation of China under Grants Nos 10775078 and 10975082, the National Basic Research Program of China under Grand No 2007CB815005, the Special Program of Higher Education of China under Grant No 20070003149. The work at Vanderbilt University and Lawrence Berkeley National Laboratory was supported by U.S. Department of Energy under Grant Nos DE-FG05-88ER40407 and DE-AC03-76SF00098. NR 21 TC 5 Z9 7 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0256-307X J9 CHINESE PHYS LETT JI Chin. Phys. Lett. PD JUN PY 2010 VL 27 IS 6 AR 062501 DI 10.1088/0256-307X/27/6/062501 PG 4 WC Physics, Multidisciplinary SC Physics GA 611HK UT WOS:000278803400018 ER PT J AU Zhang, DJ Chen, FH Bettinger, RL Barton, L Ji, DX Morgan, C Wang, H Cheng, XZ Dong, GH Guilderson, TP Zhao, H AF Zhang DongJu Chen FaHu Bettinger, R. L. Barton, L. Ji DuXue Morgan, C. Wang Hui Cheng XiaoZhong Dong GuangHui Guilderson, T. P. Zhao Hui TI Archaeological records of Dadiwan in the past 60 ka and the origin of millet agriculture SO CHINESE SCIENCE BULLETIN LA English DT Article DE Dadiwan site; Loess-Paleosol stratigraphy; hunting and gathering; millet agriculture origin; stone tool technology ID NORTH CHINA; AGE CALIBRATION; FOOD-PRODUCTION; CLIMATE-CHANGE; EVOLUTION; DOMESTICATION; PLEISTOCENE; TRANSITION; HOLOCENE; MONSOON AB This paper reports the recent excavation of Unit Dadiwan06 at the Dadiwan site in Qin'an County, Gansu. A 65 ka chronological framework is established for Dadiwan06 on the basis of absolute dating (AMS (14)C and OSL), stratigraphy, climate change events and archaeology. Artifact distributions reveal patterns of human behavioral variation and adaptation over the past 60 ka, from primitive hunting and gathering to advanced hunting and gathering, to primitive Neolithic agriculture, and finally to advanced Neolithic agriculture. C1 [Zhang DongJu; Chen FaHu; Ji DuXue; Dong GuangHui] Lanzhou Univ, Key Lab W Chinas Environm Syst MOE, Lanzhou 730000, Peoples R China. [Bettinger, R. L.; Barton, L.] Univ Calif Davis, Dept Anthropol, Davis, CA 95616 USA. [Morgan, C.] Utah State Univ, Dept Sociol Social Work & Anthropol, Logan, UT 84322 USA. [Wang Hui] Gansu Prov Inst Cultural Relics & Archaeol, Lanzhou 730000, Peoples R China. [Cheng XiaoZhong] Preservat Inst Dadiwan, Qinan 741600, Peoples R China. [Guilderson, T. P.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA. [Zhao Hui] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China. RP Chen, FH (reprint author), Lanzhou Univ, Key Lab W Chinas Environm Syst MOE, Lanzhou 730000, Peoples R China. EM fhchen@lzu.edu.cn; rlbettinger@ucdavis.edu RI Chen, Fahu/E-9491-2010; Dong, Guanghui/C-5985-2013; Chen, Fahu/B-2788-2011 FU Funds for Creative Research Groups of China [B06026]; National Geographic Society; Pacific Rim Research Program FX We would like to thank Zhao Jianlong from Gansu Province Institute of Archaeology, Wei Haitao, Zhong Yanxia, Wang Zongli, Jin Ming from Lanzhou University, P.J. Brantingham from UCLA, Shen Chen from Royal Ontario Museum for their various helps to this work and the preparation of this paper. We also appreciate the editor and two anonymous reviewers who provided us very helpful suggestions and comments. This work was supported by the Funds for Creative Research Groups of China (B06026), National Geographic Society and the Pacific Rim Research Program. NR 50 TC 6 Z9 8 U1 2 U2 14 PU SCIENCE PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA SN 1001-6538 J9 CHINESE SCI BULL JI Chin. Sci. Bull. PD JUN PY 2010 VL 55 IS 16 BP 1636 EP 1642 DI 10.1007/s11434-010-3097-4 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 610BL UT WOS:000278704200011 ER PT J AU Stringfellow, WT Jain, R AF Stringfellow, William T. Jain, Ravi TI Engineering the global ecosystem SO CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY LA English DT Editorial Material ID AGRICULTURAL DRAINAGE; CONSTRUCTED WETLANDS; MARINE ECOSYSTEMS; WATER; CALIFORNIA; WILDLIFE; RIVER; EUTROPHICATION; MANAGEMENT; STREAM C1 [Stringfellow, William T.; Jain, Ravi] Univ Pacific, Ecol Engn Res Program, Sch Engn & Comp Sci, Stockton, CA 95211 USA. [Stringfellow, William T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Geochem, Berkeley, CA 94720 USA. RP Stringfellow, WT (reprint author), Univ Pacific, Ecol Engn Res Program, Sch Engn & Comp Sci, 3601 Pacific Ave, Stockton, CA 95211 USA. EM wstringfellow@pacific.edu RI Stringfellow, William/O-4389-2015 OI Stringfellow, William/0000-0003-3189-5604 NR 34 TC 3 Z9 3 U1 0 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1618-954X J9 CLEAN TECHNOL ENVIR JI Clean Technol. Environ. Policy PD JUN PY 2010 VL 12 IS 3 BP 197 EP 203 DI 10.1007/s10098-010-0302-8 PG 7 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Engineering, Environmental; Environmental Sciences SC Science & Technology - Other Topics; Engineering; Environmental Sciences & Ecology GA 610MB UT WOS:000278735800001 ER PT J AU Bronkhorst, CA Ross, AR Hansen, BL Cerreta, EK Bingert, JF AF Bronkhorst, C. A. Ross, A. R. Hansen, B. L. Cerreta, E. K. Bingert, J. F. TI Modeling and Characterization of Grain Scale Strain Distribution in Polycrystalline Tantalum SO CMC-COMPUTERS MATERIALS & CONTINUA LA English DT Article DE Shear localization; Microstructure; Crystal Plasticity; Dynamic; Damage ID PLASTIC-DEFORMATION; LOCALIZATION; VISCOPLASTICITY; SIMULATION; BEHAVIOR; FRACTURE; METALS; ALLOYS; VOIDS AB A common sample geometry used to study shear localization is the "tophat" an axi-symmetric sample with an upper "hat" portion and a lower "brim" portion The gage section lies between the hat and brim The gage section length is on the order of 0 9 mm with deformation imposed through a Split-Hopkinson Pressure Bar system at maximum top-to-bottom velocity in the range of 10-25 m/sec Detailed metallographic analysis has been performed on sections of the samples to quantify the topology and deformation state of the material after large deformation shear These experiments performed with polycrystalline tantalum have been modeled using a multi-scale polycrystal plasticity approach A Voronoi tessellation based microstructural model and a coupled thermo-mechanical elasto-viscoplastic crystal plasticity model was used The crystal plasticity model allowed for slip to occur on the twelve {110} < 111 > and twelve {112}< 111 > slip systems Three numerical models were produced using three different realizations of initial crystallographic texture distribution within the same morphological microstructure and the results presented The detailed metallographic analysis of the deformed sample shear zone produced an estimate for the strain profile within that region and these results are compared directly to the three numerical simulation results Although the models predict a stress response which is greater than that observed experimentally, the local strain response compares very well with the results of the metallographic analysis C1 [Bronkhorst, C. A.; Hansen, B. L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Ross, A. R.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Bronkhorst, CA (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Bronkhorst, Curt/B-4280-2011 OI Bronkhorst, Curt/0000-0002-2709-1964 NR 36 TC 1 Z9 1 U1 0 U2 10 PU TECH SCIENCE PRESS PI NORCROSS PA 6825 JIMMY CARTER BLVD, STE 1850, NORCROSS, GA 30071 USA SN 1546-2218 EI 1546-2226 J9 CMC-COMPUT MATER CON JI CMC-Comput. Mat. Contin. PD JUN PY 2010 VL 17 IS 2 BP 149 EP 174 PG 26 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Materials Science; Mathematics GA 681GL UT WOS:000284299300004 ER PT J AU Spencer, LP Yang, P Scott, BL Batista, ER Boncella, JM AF Spencer, Liam P. Yang, Ping Scott, Brian L. Batista, Enrique R. Boncella, James M. TI Uranium(VI) bis(imido) disulfonamide and dihalide complexes: Synthesis density functional theory analysis SO COMPTES RENDUS CHIMIE LA English DT Article DE Uranium; Imido; Amide; Halide; Covalency; Protonolysis ID PHOSPHINE OXIDE COMPLEXES; MOLECULAR-STRUCTURE; CRYSTAL-STRUCTURE; URANYL CHLORIDE; IMIDO ANALOGS; REACTIVITY; ION; ISOCYANATES; EXCHANGE; CIS AB Novel cis- and trans-bis(imido) uranium disulfonamide derivatives have been prepared from iodide metathesis reactions between two equivalents of K[N(Me)(SO(2)Ar')](Ar' = 4-Mc-C(6)H(4)) and U(N(t)Bu)(2)(I)(2)(L)(x) (L = OPPh(3), x = 2, Me(2)bpy, x= 1; Me(2) bpy = 4,4'-dimethyl-2,2'-bipyridyl). These bis(amide) derivatives serve as useful precursors for the synthesis of the trans-diphenolate complex U(N`Bu)(2)(O-2-(t)BuC(6)H(4))(2)(OPPh(3))(2) (5), cis- and transdithiolate complexes U(N(t)Bu)(2)(SPh)(2)(L)(x) (L= OPPh(3) (6); Me(2)bPY (7)), and cis- and transchhalide complexes with the general formulas U(N(t)Bu)(2)(X)(2)(L)(x) (X = Cl, L= OPPh(3) (8), L = Me(2)bpy (10); X = Br, L= OPPh(3) (9), L = Me(2)bPv (11)) DFT calculations performed on the trans-dihalide series U(N(t)Bu)(2)(X)(2)(L)(2) and the UO(2)(2+) analogues UO(2)X(2)(OPPh(3))(2) suggest that the uranium centers in the [U(N(t)Bu)(2)](2+) ions possess more covalent character than analogous UO(2)(2+) derivatives but that the U-X bonds in the U(NtBu)(2)X(2)L(2) complexes possess a more ionic nature. (C) 2010 Academic des sciences. Published by Elsevier Masson SAS. All rights reserved C1 [Spencer, Liam P.; Scott, Brian L.; Boncella, James M.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Yang, Ping; Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Boncella, JM (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663,MS J514, Los Alamos, NM 87545 USA. RI Yang, Ping/E-5355-2011; Scott, Brian/D-8995-2017; OI Scott, Brian/0000-0003-0468-5396; Yang, Ping/0000-0003-4726-2860; Boncella, James/0000-0001-8393-392X FU Seaborg Institute; Division of Chemical Sciences, Office of Basic Energy Sciences, US Department of Energy; US DOE [DEAC52-06NA25396, CCDC 756008-756012] FX P.Y. and L.P S. thank the Seaborg Institute for their postdoctoral fellowships. E.R.B. was partially supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, US Department of Energy under the Heavy Element Chemistry program at LANL. We thank the Center for Integrated Nanotechnology at LANL for computing support. LANL is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US DOE under contract DEAC52-06NA25396. CCDC 756008-756012 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre via http://www.ccdc.cam.ac uk/datarequest.cif. NR 38 TC 11 Z9 11 U1 0 U2 6 PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER PI PARIS PA 23 RUE LINOIS, 75724 PARIS, FRANCE SN 1631-0748 J9 CR CHIM JI C. R. Chim. PD JUN-JUL PY 2010 VL 13 IS 6-7 SI SI BP 758 EP 766 DI 10.1016/j.crci.2010.01.016 PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA 648AO UT WOS:000281662600020 ER PT J AU Thomson, RK Scott, BL Morris, DE Kiplinger, JL AF Thomson, Robert K. Scott, Brian L. Morris, David E. Kiplinger, Jaqueline L. TI Synthesis, structure, spectroscopy and redox energetics of a series of uranium(IV) mixed-ligand metallocene complexes SO COMPTES RENDUS CHIMIE LA English DT Article DE Uranium; Amide; Halide; Pseudohalide; Oxidative functionalization; Agostic interactions; eta(3)-Coordination; Electronic structure; Voltammetry; Mixed-ligand; Metallocenes; UV-visible-near-IR spectroscopy; Weakly-coordinating electrolytes; X-ray crystallography ID VALENT ORGANOURANIUM COMPLEXES; ELECTRONIC-STRUCTURE; PENTAVALENT URANIUM; IMPROVED ELECTROCHEMISTRY; ORGANOACTINIDE COMPLEXES; BIS(KETIMIDO) COMPLEXES; SUPPORTING ELECTROLYTE; FUNCTIONAL-GROUPS; EXCITED-STATES; ACTINIDE AB A series of uranium(IV) mixed-ligand amide-halide/pseudohalide complexes (C(5)Me(5))(2)U[N(SiMe(3))(2)](X) (X = F (1), Cl (2), Br (3), I (4), N(3) (5), NCO (6)). (C(5)Me(5))(2)U(NPh(2))(X) (X = Cl (7), N(3) (8)), and (C(5)Me(5))(2)UIN(Ph)(SiMe(3))](X) (X = Cl (9), N(3) (10)) have been prepared by one electron oxidation of the corresponding uranium(III) amide precursors using either copper halides, silver isocyanate, or triphenylphosphine gold(I)azide. Agostic U H-C interactions and eta(3)-(N,C,C) coordination are observed for these complexes in both the solid-state and solution. There is a linear correlation between the chemical shift values of the C(5)Me(5) ligand protons in the (1)H NMR spectra and the Uivi U(III) reduction potentials of the (C(5)Me(5))(2)U[N(SiMe(3))(2)](X) complexes, suggesting that there is a common origin, that is overall cr-prr-donation from the ancillary (X) ligand to the metal, contributing to both observables Optical spectroscopy of the series of complexes 1-6 is dominated by the (C(5)Me(5))(2)U[N(SiMe(3))(2)] core, with small variations derived from the identity of the halide/pseudohalide The considerable pi-donating ability of the fluoride ligand is reflected in both the electrochemistry and UV-visible-NIR spectroscopic behavior of the fluoride complex (C5Me5)2U[N(SiMe3)21(F) (1). The syntheses of the new trivalent uranium amide complex. (C(5)Me(5))(2)U[N(Ph)(SiMe(3))](THF), and the two new weaklycoordinating electrolytes, [Pr(4)N][B(3,5-(CF(3))(2)C(6)H(3))(4)] and [Pr(4)N][B(C(6)F(5))(4)], are also reported (C) 2010 Academie des sciences. Published by Elsevier Masson SAS. C1 [Thomson, Robert K.; Scott, Brian L.; Morris, David E.; Kiplinger, Jaqueline L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Morris, DE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI Morris, David/A-8577-2012; Kiplinger, Jaqueline/B-9158-2011; Scott, Brian/D-8995-2017 OI Kiplinger, Jaqueline/0000-0003-0512-7062; Scott, Brian/0000-0003-0468-5396 FU Division of Chemical Sciences, Office of Basic Energy Science, Heavy Element Chemistry program; LANL G T. Seaborg Institute for Transactinium Science FX For financial support of this work, we acknowledge the LANL G T. Seaborg Institute for Transactinium Science (postdoctoral fellowship to R KT.) and the Division of Chemical Sciences, Office of Basic Energy Science, Heavy Element Chemistry program. NR 59 TC 40 Z9 40 U1 2 U2 35 PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER PI PARIS PA 23 RUE LINOIS, 75724 PARIS, FRANCE SN 1631-0748 J9 CR CHIM JI C. R. Chim. PD JUN-JUL PY 2010 VL 13 IS 6-7 SI SI BP 790 EP 802 DI 10.1016/j.crci.2010.04.008 PG 13 WC Chemistry, Multidisciplinary SC Chemistry GA 648AO UT WOS:000281662600024 ER PT J AU Gaunt, AJ Neu, MP AF Gaunt, Andrew J. Neu, Mary P. TI Recent developments in nonaqueous plutonium coordination chemistry SO COMPTES RENDUS CHIMIE LA English DT Article DE Actinides; Coordination modes; Chalcogens; X-ray diffraction; Transuranium elements; Ligand effects; Separations ID ELEMENT-CHALCOGEN BOND; PENTAVALENT URANYL; LANTHANIDE(III)/ACTINIDE(III) DIFFERENTIATION; TRIVALENT ACTINIDE; CRYSTAL-STRUCTURE; PHOSPHINE OXIDE; DONOR LIGANDS; COMPLEXES; URANIUM; COVALENCY AB This account highlights recent research from our laboratory on nonaqueous plutonium coordination chemistry The preparation of organic-soluble synthons, the reactivity of plutonium with soft donor atom ligands, and initial characterization of resultant complexes are presented. Homoleptic soft donor complexes are targeted, to contrast with the much larger body of actinide chemistry that focuses covalency and reactivity within one to three sites in the coordination sphere Structural parameters from X-ray structure determination and computation indicate small, yet significant, differences in covalency between isostructural plutonium and lanthanide complexes. Results are discussed in the context of our aim to expand the fundamental chemistry of plutonium, particularly to address challenges in the nuclear industry (C) 2010 Academic des sciences. Published by Elsevier Masson SAS All rights reserved. C1 [Neu, Mary P.] Los Alamos Natl Lab, Associate Directorate Chem Life & Earth Sci, Los Alamos, NM 87545 USA. [Gaunt, Andrew J.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. RP Neu, MP (reprint author), Los Alamos Natl Lab, Associate Directorate Chem Life & Earth Sci, POB 1663, Los Alamos, NM 87545 USA. OI Gaunt, Andrew/0000-0001-9679-6020 FU United States Department of Energy (DOE); Office of Science, Basic Energy Sciences; GT Seaborg Institute at Los Alamos National Laboratory FX We thank the following colleagues for contributing to this work and for engaging in productive collaborations well beyond the scope of this paper: Dr. John Matonic, Dr. Alejandro Enriquez, Mr. Sean Reilly, Prof. Robert Paine, Prof. James Ibers, Dr. Brian Scott, Dr. Evelyn Bond, Prof. Nikolas Kaltsoyannis, Prof. Trevor Hayton, Dr. James Boncella, Dr. lain May, and Dr Wolfgang Runde In particular, Dr. Matonic established laboratory equipment and methods for Pu(III) and Pu(IV) molecular syntheses and characterization, which paved the way for Dr. Enriquez and Dr. Gaunt, who in turn established techniques and chemistry to launch new lines of research. The results reviewed in this account were originally generated through projects funded by the United States Department of Energy (DOE), Office of Science, Basic Energy Sciences, Heavy Element Chemistry Program, the GT Seaborg Institute at Los Alamos National Laboratory, and previous University of California Los Alamos National Laboratory Contractor reinvestment programs. We thank the University of California Office of the President (UCOP) Lab Fees Research Program (collaboration with Prof Hayton at UCSB), and the DOE, Office of Nuclear Energy, Fuel Cycle Research and Development Program for current transuranic chemistry support. A.J.G. thanks DOE, Office of Science, Early Career Research Program Award for Molecular Transuranic Discovery Science due to commence this year. NR 74 TC 18 Z9 18 U1 1 U2 23 PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER PI PARIS PA 23 RUE LINOIS, 75724 PARIS, FRANCE SN 1631-0748 J9 CR CHIM JI C. R. Chim. PD JUN-JUL PY 2010 VL 13 IS 6-7 SI SI BP 821 EP 831 DI 10.1016/j.crci.2010.06.004 PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA 648AO UT WOS:000281662600027 ER PT J AU Raymond, KN Wellman, DL Sgarlata, C Hill, AP AF Raymond, Kenneth N. Wellman, Daniel L. Sgarlata, Carmelo Hill, Aru P. TI Curvature of the lanthanide contraction: An explanation SO COMPTES RENDUS CHIMIE LA English DT Article DE Lanthanides; X-ray diffraction; Structure elucidation; Electrostatic interactions; Bond theory ID ATOMIC SCREENING CONSTANTS; M = LA; ELECTRONIC-STRUCTURES; SCF FUNCTIONS; IONIC-RADII; GD; DISTANCES; CRYSTAL; PR; TB AB A number of studies have shown that for isostructural series of the lanthanides (elements La through Lu), a plot of equivalent metal-ligand bond lengths versus atomic number differs significantly from linearity and can be better fit as a quadratic equation. However, for hydrogen type wave functions, it is the inverse of the average distance of the electron from the nucleus (an estimate of size) that varies linearly with effective nuclear charge This generates an apparent quadratic dependence of radius with atomic number. Plotting the inverse of lanthanide ion radii (the observed distance minus the ligand size) as a function of effective nuclear charge gives very good linear fits for a variety of lanthanide complexes and materials. Parameters obtained from this fit are in excellent agreement with the calculated Slater shielding constant, k. (C) 2010 Academic des sciences. Published by Elsevier Masson SAS. All rights reserved C1 [Raymond, Kenneth N.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Raymond, KN (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. FU Office of Science. Office of Basic Energy Sciences; Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at LBNL [DE-AC02-05CH11231] FX This article is dedicated to Professor Buenzli on the occasion of his retirement from the EPFL. Research was supported by the Director. Office of Science. Office of Basic Energy Sciences, and the Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at LBNL under Contract No. DE-AC02-05CH11231. We thank Dr. Michael Seitz for helpful discussions. NR 22 TC 15 Z9 15 U1 2 U2 16 PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER PI PARIS PA 23 RUE LINOIS, 75724 PARIS, FRANCE SN 1631-0748 J9 CR CHIM JI C. R. Chim. PD JUN-JUL PY 2010 VL 13 IS 6-7 SI SI BP 849 EP 852 DI 10.1016/j.crci.2010.03.034 PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 648AO UT WOS:000281662600030 ER PT J AU Xiao, HY Jiang, XD Duan, G Gao, F Zu, XT Weber, WJ AF Xiao, H. Y. Jiang, X. D. Duan, G. Gao, Fei Zu, X. T. Weber, W. J. TI First-principles calculations of pressure-induced phase transformation in AlN and GaN SO COMPUTATIONAL MATERIALS SCIENCE LA English DT Article DE Gallium nitride; Aluminum nitride; First-principles calculation; Pressure; Phase transformation ID ROCK-SALT PHASE; GALLIUM NITRIDE; ALUMINUM NITRIDE; BAND-STRUCTURES; OPTICAL-PROPERTIES; AB-INITIO; WURTZITE GAN; III-NITRIDES; DIELECTRIC-PROPERTIES; CUBIC GAN AB Ab initio total energy calculations have been carried out to study pressure-induced wurtzite and zinc-blende to rocksalt phase transformation in AlN and GaN. The effects of d electrons on the phase transition pressure and pressure coefficients of band gap have been studied. It is shown that the presence of Ga 3d electrons do have a certain effect on the transition pressure, while other factors such as the variation of charge distribution with pressure should also be considered to explain the higher phase transition pressure for GaN than AlN. Our calculations also show that Ga 3d electrons affect the pressure coefficients of band gap slightly. (C) 2010 Elsevier B.V. All rights reserved. C1 [Xiao, H. Y.; Duan, G.; Zu, X. T.] Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. [Jiang, X. D.] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China. [Gao, Fei; Weber, W. J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Xiao, HY (reprint author), Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. EM hyxiao@uestc.edu.cn; jiangxdong@163.com RI Weber, William/A-4177-2008; Xiao, Haiyan/A-1450-2012; Gao, Fei/H-3045-2012; ye, xin/K-2615-2014 OI Weber, William/0000-0002-9017-7365; FU Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy [DE-AC05-76RL01830] FX This research was supported by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy under Contract DE-AC05-76RL01830. NR 66 TC 18 Z9 20 U1 1 U2 23 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 JUN PY 2010 VL 48 IS 4 BP 768 EP 772 DI 10.1016/j.commatsci.2010.03.028 PG 5 WC Materials Science, Multidisciplinary SC Materials Science GA 617QG UT WOS:000279295300009 ER PT J AU Zhang, LZ Bartel, T Lusk, MT AF Zhang, Liangzhe Bartel, Timothy Lusk, Mark T. TI Independence of grain boundary mobility and driving force for square-lattice Monte Carlo models SO COMPUTATIONAL MATERIALS SCIENCE LA English DT Article DE Monte Carlo; Grain boundary mobility; Driving force; Ising; Surface energy ID 2 DIMENSIONS; ISING-MODEL; INTERFACE; RECRYSTALLIZATION; TEMPERATURE; MIGRATION; EVOLUTION; KINETICS; TENSION; PROFILE AB Computational experiments are used to show that grain boundary (GB) mobility is independent of driving force for a two-dimensional, square-lattice Ising model with Metropolis kinetics. This is established over the entire Monte Carlo (MC) temperature range. A calibration methodology is also provided which endows the MC algorithm with time and length scales and expresses the MC parameters in terms of experimentally measurable quantities. These links are used to verify that the square-lattice MC paradigm delivers the desired sharp-interface grain boundary kinetics over a wide range of mixed driving forces and MC temperatures using a single mobility function. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zhang, Liangzhe; Lusk, Mark T.] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA. [Bartel, Timothy] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Lusk, MT (reprint author), Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA. EM mlusk@mines.edu FU Sandia National Laboratories; United States Department of Energy [AC04-94AL85000]; National Science Foundation; National Renewable Energy Laboratories FX The research is supported by Sandia National Laboratories, a multiprogram laboratory operated by the Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL85000. We also acknowledge the Golden Energy Computing Organization at the Colorado School of Mines for the use of resources acquired with financial assistance from the National Science Foundation and the National Renewable Energy Laboratories. NR 25 TC 6 Z9 6 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-0256 J9 COMP MATER SCI JI Comput. Mater. Sci. PD JUN PY 2010 VL 48 IS 4 BP 790 EP 795 DI 10.1016/j.commatsci.2010.03.034 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 617QG UT WOS:000279295300012 ER PT J AU Lu, BZ Cheng, XL Huang, JF McCammon, JA AF Lu, Benzhuo Cheng, Xiaolin Huang, Jingfang McCammon, J. Andrew TI AFMPB: An adaptive fast multipole, Poisson-Boltzmann solver for calculating electrostatics in biomolecular systems SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article DE Poisson-Boltzmann equation; Boundary integral equation; Node-patch method; Krylov subspace methods; Fast multipole methods; Diagonal translations ID BOUNDARY-ELEMENT METHODS; 3 DIMENSIONS; ALGORITHM; COMPUTATION; EQUATION; EFFICIENT AB A Fortran program package is introduced for rapid evaluation of the electrostatic potentials and forces in biomolecular systems modeled by the linearized Poisson-Boltzmann equation The numerical solver utilizes a well-conditioned boundary integral equation (BIE) formulation. a node-patch discretization scheme, a Krylov subspace iterative solver package with reverse communication protocols, and an adaptive new version of fast multipole method in which the exponential expansions are used to diagonalize the multipole-to-local translations The program and its full description, as well as several closely related libraries and utility tools are available at http //lsec cc ac cn/-lubz/afmpb html and a mirror site at http //mccammon ucsd edu/ This paper is a brief summary of the program the algorithms, the implementation and the usage Program summary Program title AFMPB Adaptive fast multipole Poisson-Boltzmann solver Catalogue identifier AEGB_v1_0 Program summary URL http / lcpc cs qub ac uk/sunlmaries/AEGBvI.0 html Program obtainable from CPC Program Library. Queen's University, Belfast. N Ireland Licensing provisions GPL 2 0 No of lines in distributed program, including test data, etc 453 649 No of bytes in distributed program, including test data, etc 8 764 754 Distribution format tar gz Programming language Fortran Computer Any Operating system Any RAM Depends on the size of the discretized biomolecular system Classification 3 External routines Pre- and post-processing tools are required for generating the boundary elements and for visualization Users can use MSMS (hap //www scripps edu/-sanner/html/msms_home html) for preprocessing. and VMD (http //www ks unic eclu/Research/vmd/) for visualization S ub-programs included An iterative Krylov subspace solvers package from SPARSKIT by Yousef Saad (hap //www-users cs umn edu/-saad/software/SPARSKIT/sparskit html), and the fast multipole methods subroutines from FMMSuite (http //www.fastmultipole org/) Nature of problem Numerical solution of the linearized Poisson-Boltzmann equation that describes electrostatic interactions of molecular systems in ionic solutions Solution method A novel node-patch scheme is used to discretize the well-conditioned boundary integral equation formulation of the linearized Poisson-Boltzmann equation Various Krylov subspace solvers can be subsequently applied to solve the resulting linear system, with a bounded number of iterations independent of the number of discretized unknowns The matrix-vector multiplication at each iteration is accelerated by the adaptive new versions of fast multipole methods The AFMPB solver requires other stand-alone pre-processing tools for boundary mesh generation, post-processing tools for data analysis and visualization, and can be conveniently coupled with different time stepping methods for dynamics simulation Restrictions Only three or six significant digits options are provided in this version Unusual features Most of the codes are in Fortran77 style Memory allocation functions from Fortran90 and above are used in a few subroutines Additional comments The current version of the codes is designed and written for single core/processor desktop machines Check htip //lsec cc ac cn/-lubz/afmpb html and Imp //mccammon ucsd edu/ for updates and changes Running time The running time varies with the number of discretized elements (N) in the system and their distributions In most cases. it scales linearly as a function of N (C) 2010 Elsevier B V All rights reserved C1 [Lu, Benzhuo] Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci Engn Comp, Beijing 100190, Peoples R China. [Cheng, Xiaolin] Oak Ridge Natl Lab, Ctr Biophys Mol, Oak Ridge, TN 37831 USA. [Huang, Jingfang] Univ N Carolina, Dept Math, Chapel Hill, NC 27599 USA. [McCammon, J. Andrew] Univ Calif San Diego, Howard Hughes Med Inst, Dept Pharmacol, Dept Chem & Biochem,Ctr Theoret Biol Phys, La Jolla, CA 92093 USA. RP Lu, BZ (reprint author), Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci Engn Comp, Beijing 100190, Peoples R China. FU HHMI; NIH; NBCR; NSF [NSF0811130, NSF0411920, MCB0506593]; NSF Center of Theoretical Biological Physics (CTBP); Institute for Mathematics and Its Applications; Academy of Mathematics and Systems Science of Chinese Academy of Sciences; State Key Laboratory of Scientific/Engineering Computing; NSFC [NSFC10971218]; US. Department of Energy [ERKJE84] FX Finally in this paper, we want to thank many of our colleagues and collaborators for their contributions and suggestions In particular, our code uses many existing open source codes. including the SPARSKIT by Saad and collaborators [7], MSMS [6] for mesh generation, VMD [5] for visualization, and several important subroutines in the new version of FMM from Profs. Greengard and Rokhlin's groups. This work was supported by HHMI, NIH, NBCR, NSF (J.H NSF0811130 and NSF0411920, J.A.M.. MCB0506593). the NSF Center of Theoretical Biological Physics (CTBP), and the Institute for Mathematics and Its Applications (MA). In addition, B L is partially funded by the Academy of Mathematics and Systems Science of Chinese Academy of Sciences, the State Key Laboratory of Scientific/Engineering Computing, and NSFC (NSFC10971218), and X.C. is partially supported by the US. Department of Energy Field Work Proposal ERKJE84 Their support is thankfully acknowledged NR 23 TC 23 Z9 23 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD JUN PY 2010 VL 181 IS 6 BP 1150 EP 1160 DI 10.1016/j.cpc.2010.02.015 PG 11 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 599ZZ UT WOS:000277954400019 PM 20532187 ER PT J AU Araujo, FC d'Azevedo, EF Gray, LJ AF Araujo, F. C. d'Azevedo, E. F. Gray, L. J. TI Boundary-element parallel-computing algorithm for the microstructural analysis of general composites SO COMPUTERS & STRUCTURES LA English DT Article DE 3D standard BEM; Parallel computing; CNT-based composites; Thin-walled elements; Subregion-by-subregion technique ID FIBER-REINFORCED COMPOSITES; DOMAIN DECOMPOSITION METHOD; CARBON NANOTUBES; 3D BEM; MECHANICS; COMPUTATION; SYSTEMS; IMPLEMENTATION; MATRICES; VECTOR AB A standard continuum-mechanics-based 3D boundary-element (BE) algorithm has been devised to the microstructural modeling of complex heterogeneous solids such as general composites. In the particular applications of this paper, the mechanical properties of carbon-nanotube-reinforced composites are estimated from three-dimensional representative volume elements (RVEs). The shell-like thin-walled carbon nanotubes (CNTs) are also simulated with 3D BE models, and a generic subregion-by-subregion (SBS) algorithm makes the microstructural description of the CNT-polymer systems possible. In fact, based on this algorithm, a general scalable BE parallel code is proposed. Square and hexagonal fiber-packing patterns are considered to simulate the 3D composite microstructures. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Araujo, F. C.] Univ Fed Ouro Preto, Dept Civil Eng, BR-35400000 Ouro Preto, MG, Brazil. [d'Azevedo, E. F.; Gray, L. J.] ORNL, Div Math & Comp Sci, Oak Ridge, TN USA. RP Araujo, FC (reprint author), Univ Fed Ouro Preto, Dept Civil Eng, BR-35400000 Ouro Preto, MG, Brazil. EM fcelio@pq.cnpq.br; dazevedoef@ornl.gov; graylj1@ornl.gov RI de Araujo, Francisco/L-9770-2014 FU Office of Advanced Scientific Computing Research, US Department of Energy [DE-AC05-00OR22725]; Brazilian Research Council (CNPq); Research Foundation for the State of Minas Gerais (FAPEMIG), Brazil FX This research was sponsored by the Office of Advanced Scientific Computing Research, US Department of Energy under Contract DE-AC05-00OR22725 with UT-Battelle, LLC, the Brazilian Research Council (CNPq), and by the Research Foundation for the State of Minas Gerais (FAPEMIG), Brazil. NR 54 TC 5 Z9 6 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-7949 J9 COMPUT STRUCT JI Comput. Struct. PD JUN PY 2010 VL 88 IS 11-12 BP 773 EP 784 DI 10.1016/j.compstruc.2010.03.001 PG 12 WC Computer Science, Interdisciplinary Applications; Engineering, Civil SC Computer Science; Engineering GA 604TU UT WOS:000278302200009 ER PT J AU Weber, JN Peters, MB Tsyusko, OV Linnen, CR Hagen, C Schable, NA Tuberville, TD Mckee, AM Lance, SL Jones, KL Fisher, HS Dewey, MJ Hoekstra, HE Glenn, TC AF Weber, Jesse N. Peters, Maureen B. Tsyusko, Olga V. Linnen, Catherine R. Hagen, Cris Schable, Nancy A. Tuberville, Tracey D. McKee, Anna M. Lance, Stacey L. Jones, Kenneth L. Fisher, Heidi S. Dewey, Michael J. Hoekstra, Hopi E. Glenn, Travis C. TI Five hundred microsatellite loci for Peromyscus SO CONSERVATION GENETICS LA English DT Article DE Microsatellite; Peromyscus maniculatus; Peromyscus polionotus; SSR; STR; PCR primers ID DEER MOUSE; DNA LOCI; MANICULATUS; POLIONOTUS; MICE; GENOME; AMPLIFICATION; PIGMENTATION; POPULATIONS; GENETICS AB Mice of the genus Peromyscus, including several endangered subspecies, occur throughout North America and have been important models for conservation research. We describe 526 primer pairs that amplify microsatellite DNA loci for Peromyscus maniculatus bairdii, 467 of which also amplify in Peromyscus polionotus subgriseus. For 12 of these loci, we report diversity data from a natural population. These markers will be an important resource for future genomic studies of Peromyscus evolution and mammalian conservation. C1 [Lance, Stacey L.; Jones, Kenneth L.; Glenn, Travis C.] Univ Georgia, Dept Environm Hlth Sci, Athens, GA 30602 USA. [Weber, Jesse N.; Linnen, Catherine R.; Fisher, Heidi S.; Hoekstra, Hopi E.] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA. [Weber, Jesse N.; Linnen, Catherine R.; Fisher, Heidi S.; Hoekstra, Hopi E.] Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA. [Peters, Maureen B.; Tsyusko, Olga V.; Hagen, Cris; Schable, Nancy A.; Tuberville, Tracey D.; McKee, Anna M.; Lance, Stacey L.; Glenn, Travis C.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. [Dewey, Michael J.] Univ S Carolina, Dept Biol Sci, Peromyscus Genet Stock Ctr, Columbia, SC 29208 USA. RP Glenn, TC (reprint author), Univ Georgia, Dept Environm Hlth Sci, Athens, GA 30602 USA. EM travisg@uga.edu RI Linnen, Catherine/F-2492-2011; Glenn, Travis/A-2390-2008; Hoekstra, Hopi/I-6690-2012; Lance, Stacey/K-9203-2013; OI Hoekstra, Hopi/0000-0003-1431-1769; Lance, Stacey/0000-0003-2686-1733; Tsyusko, Olga/0000-0001-8196-1062; Fisher, Heidi/0000-0001-5622-4335 FU NSF [DBI0120348, DEB-0614107]; NIH [P40-RR14279, RO1-GM069601]; Department of Energy [DE-FC09-07SR22506]; University of Georgia's Savannah River Ecology Laboratory FX This work results from a collaboration inspired by the Peromyscus Genetic Stock Center and funded by NSF (DBI0120348 to MJD, DEB-0614107 to HEH), NIH (P40-RR14279 to MJD, RO1-GM069601 to MJD and TCG), and partial support from Department of Energy award DE-FC09-07SR22506 which supported the University of Georgia's Savannah River Ecology Laboratory. NR 36 TC 8 Z9 9 U1 0 U2 17 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1566-0621 J9 CONSERV GENET JI Conserv. Genet. PD JUN PY 2010 VL 11 IS 3 BP 1243 EP 1246 DI 10.1007/s10592-009-9941-x PG 4 WC Biodiversity Conservation; Genetics & Heredity SC Biodiversity & Conservation; Genetics & Heredity GA 600AM UT WOS:000277955700073 PM 20563244 ER PT J AU Lillard, RS AF Lillard, R. S. TI A review of corrosion issues related to uranyl nitrate base aqueous homogeneous reactors SO CORROSION ENGINEERING SCIENCE AND TECHNOLOGY LA English DT Review DE Aqueous homogenous reactors; AHR; Corrosion; Nitric acid; Uranyl nitrate; Stainless steel; Zirconium ID AUSTENITIC STAINLESS-STEEL; NITRIC-ACID GRADE; CRACKING; ZIRCONIUM; BEHAVIOR; ACCUMULATION; ENVIRONMENTS; METALS; IONS AB Aqueous homogeneous reactors (AHRs) are liquid fuel nuclear reactors, typically consisting of an acidified nitrate or sulphate base solution of enriched uranium-235 ((235)U). The goal of this paper is to review both the report and research literature on the topic of materials corrosion issues related to uranyl nitrate base AHRs. The materials of interest are stainless steel (SS) 347, SS304L, SS304L-NAG, SS316L and zirconium (Zr) base alloys. In nitric acid solutions, SS and Zr alloys are passive, although there is some increased susceptibility of SS347 to intergranular corrosion (IGC) and knife-line attack as compared to other alloys. This is likely a result of the higher carbon (C) content in SS347. In uranyl nitrate fuel simulants corrosion rates increased as compared with nitric acid alone with the corrosion rate of SS347 being the highest while SS316 was the lowest of the austenitic stainless steels tested. In comparison, corrosion rates of Zr based alloys remained relatively unchanged in uranyl nitrate base solutions. The most prominent issue for these materials appears to be iodide (I(-)) induced pitting corrosion on the walls of the off-gas extraction system with the potential for stress corrosion cracking. For Zr alloys, vapour phase I(-) pitting and SCC are well documented failure mechanisms with the threshold I(-) concentration being on the order of 1- ppm. In the off-gas extraction system of a 200 kW AHR calculations indicate that the I(-) concentration may be as high as 0.4-0.6 ppm warranting further study in this area. The influence of a prototypic AHR neutron flux on corrosion rates and susceptibility to underfilm corrosion, due to precipitation of UO(2)(OH)(2), was not available from the literature. C1 Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Lillard, RS (reprint author), Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, MST 6, Los Alamos, NM 87545 USA. EM lillard@lanl.gov FU NA-21; LANL Solution Reactor Program FX The Los Alamos National Laboratory is operated by Los Alamos National Security LLC for the National Nuclear Security Administration of the US Department of Energy under contract DE-AC52-06NA25396. The author thanks Steve Klein, David Kolman, Tom Lienert and Felicia Taw for their valuable input. This work was sponsored by NA-21 and the LANL Solution Reactor Program, Noah Pope and John Ireland Program Managers. NR 45 TC 0 Z9 0 U1 3 U2 27 PU MANEY PUBLISHING PI LEEDS PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND SN 1478-422X J9 CORROS ENG SCI TECHN JI Corros. Eng. Sci. Technol. PD JUN PY 2010 VL 45 IS 3 BP 194 EP 203 DI 10.1179/147842210X12659647007121 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 607BR UT WOS:000278473800002 ER PT J AU Walter, JM Greenfield, D Liphardt, J AF Walter, Jessica M. Greenfield, Derek Liphardt, Jan TI Potential of light-harvesting proton pumps for bioenergy applications SO CURRENT OPINION IN BIOTECHNOLOGY LA English DT Review ID ESCHERICHIA-COLI; SCHIZOSACCHAROMYCES-POMBE; HALOBACTERIUM-HALOBIUM; FUNCTIONAL EXPRESSION; MICROBIAL-PRODUCTION; PURPLE MEMBRANE; PROTEORHODOPSIN; BACTERIORHODOPSIN; CONVERSION; RHODOPSIN AB Concerns about the security and longevity of traditional energy sources have increased interest in alternative methods of energy production, particularly those which utilize abundantly available solar energy. Solar energy can be harvested either indirectly through the conversion of plant or algal byproducts into biofuels or directly using engineered microorganisms. Here we summarize the main features of light-harvesting proton pumps, which may provide a relatively simple way to boost the efficiency of energy-limited biological processes in fuel production. This family of proton pumps, which includes bacteriorhodopsin and proteorhodopsin, directly uses light energy to create a proton motive force (pmf) which can be used by other enzymes to facilitate active transport, regulate transmembrane proteins, or to generate ATP and NADH. C1 [Walter, Jessica M.; Greenfield, Derek; Liphardt, Jan] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Walter, Jessica M.; Greenfield, Derek; Liphardt, Jan] Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA 94720 USA. [Walter, Jessica M.; Greenfield, Derek; Liphardt, Jan] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Liphardt, J (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM Liphardt@berkeley.edu RI Liphardt, Jan/A-5906-2012; OI Liphardt, Jan/0000-0003-2835-5025 FU University of California, Berkeley; Hellman Faculty Fund; Sloan and Searle foundations; National Science Foundation; Department of Energy Office of Science, Basic Energy Sciences; National Science Foundation Graduate Research Fellowship FX This work was supported by the University of California, Berkeley, the Hellman Faculty Fund, the Sloan and Searle foundations, the National Science Foundation, and the Department of Energy Office of Science, Basic Energy Sciences. This material is based upon work supported under a National Science Foundation Graduate Research Fellowship. NR 42 TC 19 Z9 19 U1 4 U2 35 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0958-1669 J9 CURR OPIN BIOTECH JI Curr. Opin. Biotechnol. PD JUN PY 2010 VL 21 IS 3 BP 265 EP 270 DI 10.1016/j.copbio.2010.03.007 PG 6 WC Biochemical Research Methods; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 613CK UT WOS:000278953600006 PM 20371172 ER PT J AU Borglin, S van der Meer, JP AF Borglin, Sharon van der Meer, John P. TI Environmental biotechnology SO CURRENT OPINION IN BIOTECHNOLOGY LA English DT Editorial Material C1 [Borglin, Sharon] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, Berkeley, CA 94720 USA. [van der Meer, John P.] Univ Toronto, Best Inst, Toronto, ON M5S 1A1, Canada. [van der Meer, John P.] NRC Inst Marine Biosci, Halifax, NS, Canada. RP Borglin, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, 1 Cyclotron Rd,MS 70A-3317, Berkeley, CA 94720 USA. EM seborglin@lbl.gov; john.vandermeer@gmail.com RI Borglin, Sharon/I-1013-2016 NR 1 TC 0 Z9 0 U1 0 U2 7 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0958-1669 J9 CURR OPIN BIOTECH JI Curr. Opin. Biotechnol. PD JUN PY 2010 VL 21 IS 3 BP 311 EP 312 DI 10.1016/j.copbio.2010.04.002 PG 2 WC Biochemical Research Methods; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 613CK UT WOS:000278953600012 PM 20451367 ER PT J AU Jansson, C Northen, T AF Jansson, Christer Northen, Trent TI Calcifying cyanobacteria-the potential of biomineralization for carbon capture and storage SO CURRENT OPINION IN BIOTECHNOLOGY LA English DT Review ID CO2 CONCENTRATING MECHANISMS; SYNECHOCOCCUS SP PCC7942; CALCIUM-CARBONATE; INORGANIC CARBON; BIOMASS PRODUCTION; ATMOSPHERIC CO2; FLUE-GAS; S-LAYER; CALCIFICATION; DIOXIDE AB Employment of cyanobacteria in biomineralization of carbon dioxide by calcium carbonate precipitation offers novel and self-sustaining strategies for point-source carbon capture and sequestration. Although details of this process remain to be elucidated, a carbon-concentrating mechanism, and chemical reactions in exopolysaccharide or proteinaceous surface layers are assumed to be of crucial importance. Cyanobacteria can utilize solar energy through photosynthesis to convert carbon dioxide to recalcitrant calcium carbonate. Calcium can be derived from sources such as gypsum or industrial brine. A better understanding of the biochemical and genetic mechanisms that carry out and regulate cynaobacterial biomineralization should put us in a position where we can further optimize these steps by exploiting the powerful techniques of genetic engineering, directed evolution, and biomimetics. C1 [Jansson, Christer; Northen, Trent] Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Jansson, C (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA. EM CGJansson@lbl.gov RI daorui, han/G-3767-2011; Northen, Trent/K-3139-2012; OI Northen, Trent/0000-0001-8404-3259 FU U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported in part by U.S. Department of Energy Contract DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory. NR 74 TC 51 Z9 52 U1 2 U2 55 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0958-1669 J9 CURR OPIN BIOTECH JI Curr. Opin. Biotechnol. PD JUN PY 2010 VL 21 IS 3 BP 365 EP 371 DI 10.1016/j.copbio.2010.03.017 PG 7 WC Biochemical Research Methods; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 613CK UT WOS:000278953600021 PM 20456936 ER PT J AU Pauly, M Keegstra, K AF Pauly, Markus Keegstra, Kenneth TI Plant cell wall polymers as precursors for biofuels SO CURRENT OPINION IN PLANT BIOLOGY LA English DT Review ID CELLULOSE SYNTHASE-LIKE; ARABIDOPSIS-THALIANA; GLUCURONOXYLAN BIOSYNTHESIS; COMPRESSION WOOD; MANNAN SYNTHASE; FAMILY-MEMBERS; GENE FAMILY; EXPRESSION; LIGNIN; FIBER AB The conversion of plant biomass into liquid transportation fuels is a complex process that could be simplified by altering the ratios of the cell wall polymers that constitute the main biomass components. The composition of biomass varies naturally depending upon plant species and cell type, including some highly specialized walls that consist mainly of a single component. Progress is being made in understanding the molecular basis of these natural variations in wall composition. This new knowledge will be a valuable resource that can be used during efforts to generate designer biofuel crops using either selected breeding methods or recombinant DNA techniques. C1 [Pauly, Markus; Keegstra, Kenneth] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, DOE Plant Res Lab, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA. RP Keegstra, K (reprint author), Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, DOE Plant Res Lab, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA. EM keegstra@msu.edu RI Pauly, Markus/B-5895-2008 OI Pauly, Markus/0000-0002-3116-2198 FU US Department of Energy (DOE) Great Lakes Bioenergy Research Center (DOE BER Office of Science) [DE-FC02-07ER64494]; Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy [DE-FG02-91ER20021] FX The authors would like to thank Paul Knox, University of Leeds, Debra Goffner, CNRS Castanet Tolosan, Candice Haigler, North Carolina State University, and Frank Telewski, Jameel Al-Haddad, Curtis Wilkerson, Marlene Cameron, Michigan State University for providing photographs depicted in Figures 1 and 2. The authors would like to express their appreciation of research funding by the US Department of Energy (DOE) Great Lakes Bioenergy Research Center (DOE BER Office of Science DE-FC02-07ER64494) and by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy (award no. DE-FG02-91ER20021). NR 69 TC 94 Z9 97 U1 6 U2 66 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 1369-5266 J9 CURR OPIN PLANT BIOL JI Curr. Opin. Plant Biol. PD JUN PY 2010 VL 13 IS 3 BP 305 EP 312 DI 10.1016/j.pbi.2009.12.009 PG 8 WC Plant Sciences SC Plant Sciences GA 619YE UT WOS:000279465400011 PM 20097119 ER PT J AU Simmons, BA Logue, D Ralph, J AF Simmons, Blake A. Logue, Dominique Ralph, John TI Advances in modifying lignin for enhanced biofuel production SO CURRENT OPINION IN PLANT BIOLOGY LA English DT Review ID MEDICAGO-SATIVA L.; DOWN-REGULATION; FERULIC ACID; PHENYLPROPANOID BIOSYNTHESIS; ENZYMATIC DEGRADATION; GENETIC-MODIFICATION; O-METHYLTRANSFERASE; SYSTEMS-APPROACH; SYRINGYL LIGNIN; PLANT-GROWTH AB Renewable and sustainable liquid transportation biofuels based on lignocellulosics conversion face several obstacles that must be overcome in order for them to become commercially viable and cost-competitive. The presence of lignin is one of the most significant contributors to biomass recalcitrance and consequently increases the costs associated with conversion. Lignins are complex aromatic biopolymers, derived from hydroxyphenylpropanoids, that vary in composition and structure as a function of genotype, phenotype, and environment, as well as with the cell type and maturity of the plant tissue. Lignins consist of (mainly) syringyl (S), guaiacyl (G), and p-hydroxyphenyl (H) units, derived from sinapyl, coniferyl, and p-coumaryl alcohols. These units are not discrete within either the cell or a given lignin molecule, and the compositional ratios of these three moieties can vary significantly. This inherent complexity and heterogeneity of lignin, both in structure and composition, make it extremely difficult to develop a conversion technology that can efficiently process a wide range of sustainable feedstocks cost-effectively. There is a growing body of work that has demonstrated several genetic engineering strategies that, when coupled with an integrated approach to conversion, hold significant promise for the development of tailored feedstocks designed for biofuel production. The knowledgebase is at the point where researchers are also able to contemplate strategies to 'design' the lignin polymer for easier processing. The realization of advanced analytical techniques and an increasing number of plant genomes are enabling researchers to take a systems approach towards understanding and engineering lignin to develop these optimal feedstocks. C1 [Simmons, Blake A.; Logue, Dominique] DOE Joint BioEnergy Inst, Emeryville, CA 94608 USA. [Simmons, Blake A.] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA 94551 USA. [Logue, Dominique] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Ralph, John] Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA. [Ralph, John] Univ Wisconsin, Dept Biol Syst Engn, Madison, WI 53706 USA. [Ralph, John] DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. RP Simmons, BA (reprint author), DOE Joint BioEnergy Inst, Emeryville, CA 94608 USA. EM basimmo@sandia.gov OI Simmons, Blake/0000-0002-1332-1810 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231, DE-FC02-07ER64494]; Office of Science (BER), US Department of Energy [DEAI02-06ER64299] FX This work was part of the DOE Joint Bio Energy Institute (http://www.jbei.org) supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the US Department of Energy. This research was supported by the Office of Science (BER), US Department of Energy, Interagency Agreement No. DEAI02-06ER64299, and was also funded in part by the DOE Great Lakes Bioenergy Research Center (www.greatlakesbioenergy.org), which is supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through Cooperative Agreement DE-FC02-07ER64494 between The Board of Regents of the University of Wisconsin System and the US Department of Energy. NR 76 TC 90 Z9 94 U1 7 U2 90 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 1369-5266 J9 CURR OPIN PLANT BIOL JI Curr. Opin. Plant Biol. PD JUN PY 2010 VL 13 IS 3 BP 313 EP 320 DI 10.1016/j.pbi.2010.03.001 PG 8 WC Plant Sciences SC Plant Sciences GA 619YE UT WOS:000279465400012 PM 20359939 ER PT J AU Perry, JJP Cotner-Gohara, E Ellenberger, T Tainer, JA AF Perry, J. Jefferson P. Cotner-Gohara, Elizabeth Ellenberger, Tom Tainer, John A. TI Structural dynamics in DNA damage signaling and repair SO CURRENT OPINION IN STRUCTURAL BIOLOGY LA English DT Review ID HUMAN POLY(ADP-RIBOSE) POLYMERASE-1; NUCLEOTIDE EXCISION-REPAIR; CRYSTAL-STRUCTURE; POLYNUCLEOTIDE KINASE; SCATTERING SAXS; RECOGNITION; COMPLEX; ENZYME; DOMAIN; PROTEIN AB Changing macromolecular conformations and complexes are critical features of cellular networks, typified by DNA damage response pathways that are essential to life. These fluctuations enhance the specificity of macromolecular recognition and catalysis, and enable an integrated functioning of pathway components, ensuring efficiency while reducing off pathway reactions. Such dynamic complexes challenge classical detailed structural analyses, so their characterizations demand combining methods that provide detail with those that inform dynamics in solution. Small-angle X-ray scattering, electron microscopy, hydrogen-deuterium exchange and computation are complementing detailed structures from crystallography and NMR to provide comprehensive models for DNA damage searching, specificity, signaling, and repair. Here, we review new approaches and results on DNA damage responses that advance structural biology in the fourth dimension, connecting proteins to pathways. C1 [Cotner-Gohara, Elizabeth; Ellenberger, Tom] Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA. [Perry, J. Jefferson P.; Tainer, John A.] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA. [Perry, J. Jefferson P.; Tainer, John A.] Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA. [Perry, J. Jefferson P.] Amrita Univ, Sch Biotechnol, Kollam 690525, Kerala, India. [Tainer, John A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Ellenberger, T (reprint author), Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA. EM tome@biochem.wustl.edu; jat@scripps.edu FU National Cancer Institute [CA92584] FX The authors thank Michal Hammel, Lawrence Berkeley National Laboratory, for his helpful comments in the manuscript preparation, and acknowledge support for their efforts to connect DNA repair protein structures to biological networks from the National Cancer Institute program project Structural Cell Biology of DNA Repair Machines CA92584. NR 55 TC 30 Z9 30 U1 2 U2 9 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0959-440X J9 CURR OPIN STRUC BIOL JI Curr. Opin. Struct. Biol. PD JUN PY 2010 VL 20 IS 3 BP 283 EP 294 DI 10.1016/j.sbi.2010.03.012 PG 12 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 614LV UT WOS:000279061300004 PM 20439160 ER PT J AU Friedland, GD Kortemme, T AF Friedland, Gregory D. Kortemme, Tanja TI Designing ensembles in conformational and sequence space to characterize and engineer proteins SO CURRENT OPINION IN STRUCTURAL BIOLOGY LA English DT Review ID MODELING BACKBONE FLEXIBILITY; COMPUTATIONAL ENZYME DESIGN; SIDE-CHAIN PREDICTION; SIMPLE PHYSICAL MODEL; INTERACTION SPECIFICITY; STRUCTURAL ENSEMBLES; FLUORESCENT PROTEINS; DIVERSITY; ACCURACY; RECOGNITION AB Computational protein design - the search for amino acids that adopt defined structures and functions - has achieved significant successes in recent years. Design is often approached from the perspective of targeting the design objective one structure-sequence pair at a time. Here we summarize studies that take an alternate approach, considering design solutions from the perspective of conformational and sequence ensembles. We argue that this strategy both more closely mimics the properties of naturally occurring proteins and drives progress in engineering. We discuss benchmarks for evaluating design methods, highlight recent advances, and project how the evolving capabilities of gene sequencing, gene synthesis, and genome editing may change the design field. C1 [Kortemme, Tanja] Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, San Francisco, CA 94158 USA. [Kortemme, Tanja] Univ Calif San Francisco, Calif Inst Quantitat Biosci, San Francisco, CA 94158 USA. [Friedland, Gregory D.] Joint BioEnergy Inst, Div Technol, Emeryville, CA USA. [Friedland, Gregory D.] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. RP Kortemme, T (reprint author), Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, 1700 4th St,UCSF MC 25430, San Francisco, CA 94158 USA. EM kortemme@cgl.ucsf.edu FU National Science Foundation [MCB-0744541]; Synthetic Biology Engineering Research Center (SynBERC; NSF) [EEC-0540879] FX This work was funded by a CAREER grant from the National Science Foundation to T.K. (MCB-0744541) and the Synthetic Biology Engineering Research Center (SynBERC; NSF EEC-0540879). NR 67 TC 19 Z9 19 U1 1 U2 11 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0959-440X J9 CURR OPIN STRUC BIOL JI Curr. Opin. Struct. Biol. PD JUN PY 2010 VL 20 IS 3 BP 377 EP 384 DI 10.1016/j.sbi.2010.02.004 PG 8 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 614LV UT WOS:000279061300015 PM 20303740 ER PT J AU Marshall, SJ Bayne, SC Baier, R Tomsia, AP Marshall, GW AF Marshall, Sally J. Bayne, Stephen C. Baier, Robert Tomsia, Antoni P. Marshall, Grayson W. TI A review of adhesion science (vol 26, pg e11, 2010) SO DENTAL MATERIALS LA English DT Correction C1 [Marshall, Sally J.; Tomsia, Antoni P.; Marshall, Grayson W.] Univ Calif San Francisco, San Francisco, CA 94143 USA. [Baier, Robert] SUNY Buffalo, Buffalo, NY 14260 USA. [Marshall, Sally J.; Tomsia, Antoni P.; Marshall, Grayson W.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Bayne, Stephen C.] Univ Michigan, Ann Arbor, MI 48109 USA. RP Marshall, SJ (reprint author), Univ Calif San Francisco, San Francisco, CA 94143 USA. EM sally.marshall@ucsf.edu NR 1 TC 2 Z9 2 U1 0 U2 12 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0109-5641 J9 DENT MATER JI Dent. Mater. PD JUN PY 2010 VL 26 IS 6 BP E195 EP E195 DI 10.1016/j.dental.2010.02.005 PG 1 WC Dentistry, Oral Surgery & Medicine; Materials Science, Biomaterials SC Dentistry, Oral Surgery & Medicine; Materials Science GA 588PS UT WOS:000277085500017 ER PT J AU Louie, RF Kost, GJ AF Louie, Richard F. Kost, Gerald J. TI A POINT-OF-CARE TEST FOR H1N1 INFLUENZA Reply SO DISASTER MEDICINE AND PUBLIC HEALTH PREPAREDNESS LA English DT Letter C1 [Louie, Richard F.; Kost, Gerald J.] Univ Calif Davis, Lawrence Livermore Natl Lab, Point of Care Technol Ctr, Davis, CA 95616 USA. RP Louie, RF (reprint author), Univ Calif Davis, Lawrence Livermore Natl Lab, Point of Care Technol Ctr, Davis, CA 95616 USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60654-0946 USA SN 1935-7893 J9 DISASTER MED PUBLIC JI Dis. Med. Public Health Prep. PD JUN PY 2010 VL 4 IS 2 BP 100 EP 101 PG 2 WC Public, Environmental & Occupational Health SC Public, Environmental & Occupational Health GA 605MZ UT WOS:000278353000003 ER PT J AU Devarakonda, R Palanisamy, G Wilson, BE Green, JM AF Devarakonda, Ranjeet Palanisamy, Giriprakash Wilson, Bruce E. Green, James M. TI Mercury: reusable metadata management, data discovery and access system SO EARTH SCIENCE INFORMATICS LA English DT Article DE Metadata; Metadata management; Metadata discovery; Scientific data search; Reusable search engine; ORNL DAAC AB Mercury is a federated metadata harvesting, search and retrieval tool based on both open source packages and custom software developed at Oak Ridge National Laboratory (ORNL). It was originally developed for the National Aeronautics and Space Administration (NASA), and the consortium now includes funding from NASA, U. S. Geological Survey (USGS), and U. S. Department of Energy (DOE). Mercury is itself a reusable software application which uses a service-oriented architecture (SOA) approach to capturing and managing metadata in support of twelve Earth science projects. Mercury also supports the reuse of metadata by enabling searches across a range of metadata specification and standards including XML, Z39.50, FGDC, Dublin-Core, Darwin-Core, EML, and ISO-19115. It collects metadata and key data from contributing project servers distributed around the world and builds a centralized index. The Mercury search interfaces allows the users to perform simple, fielded, spatial, temporal and other hierarchical searches across these metadata sources. This centralized repository of metadata with distributed data sources provides extremely fast search results (Table 1) to the user, while allowing data providers to advertise the availability of their data and yet maintain complete control and ownership of that data. C1 [Devarakonda, Ranjeet; Palanisamy, Giriprakash; Wilson, Bruce E.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Green, James M.] Informat Int Associates, Oak Ridge, TN 37831 USA. RP Devarakonda, R (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,MS6407, Oak Ridge, TN 37831 USA. EM devarakondar@ornl.gov; palanisamyg@ornl.gov; wilsonbe@ornl.gov; jgreen@iiaweb.com RI Devarakonda, Ranjeet/E-5976-2016; OI Devarakonda, Ranjeet/0000-0003-2661-1937; Wilson, Bruce/0000-0002-1421-1728 FU U.S. Department of Energy [DE-AC05-00OR22725]; NASA; USGS; DOE FX Oak Ridge National Laboratory is managed by the UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725; Mercury was presented in many conferences including 2007 (Palanisamy et al. 2007) and 2008 (Devarakonda et al. 2008) American Geophysical Union (AGU).; The Mercury consortium is funded by NASA, USGS, and DOE for a consortium of projects, including ORNL DAAC, NBII, DADDI, LTER, The Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA), Better Air Quality for North America (NARSTO), Carbon Dioxide Information Analysis center (CDIAC), IABIN Invasives Information Network (I3N) and Inter-American Institute for Global Change Research (IAI). NR 11 TC 10 Z9 10 U1 2 U2 10 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1865-0473 J9 EARTH SCI INFORM JI Earth Sci. Inform. PD JUN PY 2010 VL 3 IS 1-2 BP 87 EP 94 DI 10.1007/s12145-010-0050-7 PG 8 WC Computer Science, Interdisciplinary Applications; Geosciences, Multidisciplinary SC Computer Science; Geology GA 703XH UT WOS:000286014100010 ER PT J AU West, TO Brandt, CC Baskaran, LM Hellwinckel, CM Mueller, R Bernacchi, CJ Bandaru, V Yang, B Wilson, BS Marland, G Nelson, RG Ugarte, DGD Post, WM AF West, Tristram O. Brandt, Craig C. Baskaran, Latha M. Hellwinckel, Chad M. Mueller, Richard Bernacchi, Carl J. Bandaru, Varaprasad Yang, Bai Wilson, Bradly S. Marland, Gregg Nelson, Richard G. Ugarte, Daniel G. De La Torre Post, Wilfred M. TI Cropland carbon fluxes in the United States: increasing geospatial resolution of inventory-based carbon accounting SO ECOLOGICAL APPLICATIONS LA English DT Article DE agriculture; cropland data layer; fossil fuel emissions; land cover; land management; moderate resolution imaging spectroradiometer (MODIS); net carbon flux; net primary production; satellite remote sensing; soil carbon ID NET PRIMARY PRODUCTION; ORGANIC-CARBON; DIOXIDE EMISSIONS; SOIL; SEQUESTRATION; AGRICULTURE; INFORMATION; MANAGEMENT; ECOSYSTEM; TILLAGE AB Net annual soil carbon change, fossil fuel emissions from cropland production, and cropland net primary production were estimated and spatially distributed using land cover defined by NASA's moderate resolution imaging spectroradiometer (MODIS) and by the USDA National Agricultural Statistics Service (NASS) cropland data layer (CDL). Spatially resolved estimates of net ecosystem exchange (NEE) and net ecosystem carbon balance (NECB) were developed. The purpose of generating spatial estimates of carbon fluxes, and the primary objective of this research, was to develop a method of carbon accounting that is consistent from field to national scales. NEE represents net on-site vertical fluxes of carbon. NECB represents all on-site and off-site carbon fluxes associated with crop production. Estimates of cropland NEE using moderate resolution (similar to 1 km(2)) land cover data were generated for the conterminous United States and compared with higher resolution (30-m) estimates of NEE and with direct measurements of CO(2) flux from croplands in Illinois and Nebraska, USA. Estimates of NEE using the CDL (30-m resolution) had a higher correlation with eddy covariance flux tower estimates compared with estimates of NEE using MODIS. Estimates of NECB are primarily driven by net soil carbon change, fossil fuel emissions associated with crop production, and CO(2) emissions from the application of agricultural lime. NEE and NECB for U.S. croplands were -274 and 7 Tg C/yr for 2004, respectively. Use of moderate- to high-resolution satellite-based land cover data enables improved estimates of cropland carbon dynamics. C1 [West, Tristram O.; Baskaran, Latha M.; Bandaru, Varaprasad; Yang, Bai; Marland, Gregg; Post, Wilfred M.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Brandt, Craig C.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Hellwinckel, Chad M.; Wilson, Bradly S.; Ugarte, Daniel G. De La Torre] Univ Tennessee, Agr Policy Anal Ctr, Knoxville, TN 37996 USA. [Mueller, Richard] Natl Agr Stat Serv, USDA, Div Res & Dev, Spatial Anal Res Sect, Fairfax, VA 22030 USA. [Bernacchi, Carl J.] Illinois State Water Survey, Champaign, IL 61820 USA. [Nelson, Richard G.] Kansas State Univ, Manhattan, KS 66506 USA. RP West, TO (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. EM westto@ornl.gov RI Post, Wilfred/B-8959-2012; West, Tristram/C-5699-2013; Baskaran, Latha/D-9754-2016; OI West, Tristram/0000-0001-7859-0125; Baskaran, Latha/0000-0001-8487-3914; Bernacchi, Carl/0000-0002-2397-425X FU U.S. National Aeronautics and Space Administration, Earth Science Division; Department of Energy Consortium for Carbon Sequestration in Terrestrial Ecosystems; U.S. Department of Energy [DE-AC05-00OR22725] FX We appreciate Tilden Myers and Shashi Verma for providing eddy flux tower data for the Bondville, Illinois, site and for the Mead, Nebraska, sites, respectively, via the Carbon Dioxide Information Analysis Center, AmeriFlux Network internet site. We gratefully acknowledge the U.S. National Aeronautics and Space Administration, Earth Science Division, and the Department of Energy Consortium for Carbon Sequestration in Terrestrial Ecosystems. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. NR 41 TC 38 Z9 38 U1 1 U2 35 PU ECOLOGICAL SOC AMER PI WASHINGTON PA 1990 M STREET NW, STE 700, WASHINGTON, DC 20036 USA SN 1051-0761 J9 ECOL APPL JI Ecol. Appl. PD JUN PY 2010 VL 20 IS 4 BP 1074 EP 1086 DI 10.1890/08-2352.1 PG 13 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA 611ZV UT WOS:000278865200014 PM 20597291 ER PT J AU Goetz, SJ Steinberg, D Betts, MG Holmes, RT Doran, PJ Dubayah, R Hofton, M AF Goetz, Scott J. Steinberg, Daniel Betts, Matthew G. Holmes, Richard T. Doran, Patrick J. Dubayah, Ralph Hofton, Michelle TI Lidar remote sensing variables predict breeding habitat of a Neotropical migrant bird SO ECOLOGY LA English DT Article DE bird diversity; Black-throated Blue Warbler; canopy structure; Dendroica caerulescens; habitat quality; Hubbard Brook Experimental Forest; New Hampshire, USA; Neotropical migratory birds; northern hardwoods forests; remote sensing; waveform lidar data ID THROATED BLUE WARBLERS; SPECIES-DIVERSITY; FOREST; POPULATION; MODEL; VEGETATION; ECOSYSTEM; RICHNESS; SONGBIRD; QUALITY AB A topic of recurring interest in ecological research is the degree to which vegetation structure influences the distribution and abundance of species. Here we test the applicability of remote sensing, particularly novel use of waveform lidar measurements, for quantifying the habitat heterogeneity of a contiguous northern hardwoods forest in the northeastern United States. We apply these results to predict the breeding habitat quality, an indicator of reproductive output of a well-studied Neotropical migrant songbird, the Black-throated Blue Warbler (Dendroica caerulescens). We found that using canopy vertical structure metrics provided unique information for models of habitat quality and spatial patterns of prevalence. An ensemble decision tree modeling approach (random forests) consistently identified lidar metrics describing the vertical distribution and complexity of canopy elements as important predictors of habitat use over multiple years. Although other aspects of habitat were important, including the seasonality of vegetation cover, the canopy structure variables provided unique and complementary information that systematically improved model predictions. We conclude that canopy structure metrics derived from waveform lidar, which will be available on future satellite missions, can advance multiple aspects of biodiversity research, and additional studies should be extended to other organisms and regions. C1 [Goetz, Scott J.] Woods Hole Res Ctr, Falmouth, MA 02540 USA. [Steinberg, Daniel] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Betts, Matthew G.] Oregon State Univ, Corvallis, OR 97331 USA. [Holmes, Richard T.] Dartmouth Coll, Hanover, NH 03755 USA. [Doran, Patrick J.] Nature Conservancy, Lansing, MI 48906 USA. [Dubayah, Ralph; Hofton, Michelle] Univ Maryland, College Pk, MD 20742 USA. RP Goetz, SJ (reprint author), Woods Hole Res Ctr, 149 Woods Hole Rd, Falmouth, MA 02540 USA. EM sgoetz@whrc.org RI Goetz, Scott/A-3393-2015; Beckley, Matthew/D-4547-2013; OI Goetz, Scott/0000-0002-6326-4308; Steinberg, Daniel/0000-0003-1769-2261 FU NASA Applied Sciences (Ecological Forecasting); U.S. National Science Foundation; Northern Research Station; Forest Service; U.S. Department of Agriculture, Newtown Square, Pennsylvania FX We acknowledge support from the NASA Applied Sciences (Ecological Forecasting), Terrestrial Ecology, and Interdisciplinary Science programs. Financial support for field data collection was provided by the U.S. National Science Foundation LTER program. The research was conducted under the auspices of the Northern Research Station, Forest Service, U.S. Department of Agriculture, Newtown Square, Pennsylvania, and is a contribution of the Hubbard Brook Ecosystem Study. NR 33 TC 81 Z9 83 U1 5 U2 59 PU ECOLOGICAL SOC AMER PI WASHINGTON PA 1990 M STREET NW, STE 700, WASHINGTON, DC 20036 USA SN 0012-9658 J9 ECOLOGY JI Ecology PD JUN PY 2010 VL 91 IS 6 BP 1569 EP 1576 DI 10.1890/09-1670.1 PG 8 WC Ecology SC Environmental Sciences & Ecology GA 611YB UT WOS:000278859700002 PM 20583698 ER PT J AU Campisi, J AF Campisi, J. TI Aging and tumour suppression: the double-edged sword of cellular senescence SO EJC SUPPLEMENTS LA English DT Meeting Abstract CT 21st Meeting of the European-Association-for-Cancer-Research CY JUN 26-29, 2010 CL Oslo, NORWAY SP European Assoc Canc Res C1 [Campisi, J.] Lawrence Berkeley Lab, Buck Inst Age Res, Novato, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6349 J9 EJC SUPPL JI EJC Suppl. PD JUN PY 2010 VL 8 IS 5 MA 23 BP 7 EP 7 PG 1 WC Oncology SC Oncology GA 737XF UT WOS:000288603100022 ER PT J AU Andersen, K Mori, H Fata, JE Oyjord, T Malandsmo, GM Bissell, MJ AF Andersen, K. Mori, H. Fata, J. E. Oyjord, T. Malandsmo, G. M. Bissell, M. J. TI The metastasis-promoting protein, S100A4, regulates mammary branching morphogenesis SO EJC SUPPLEMENTS LA English DT Meeting Abstract CT 21st Meeting of the European-Association-for-Cancer-Research CY JUN 26-29, 2010 CL Oslo, NORWAY SP European Assoc Canc Res C1 [Andersen, K.; Oyjord, T.; Malandsmo, G. M.] Norwegian Radium Hosp, Oslo, Norway. [Mori, H.; Bissell, M. J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Fata, J. E.] CUNY, Dept Biol, New York, NY 10021 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6349 J9 EJC SUPPL JI EJC Suppl. PD JUN PY 2010 VL 8 IS 5 MA 370 BP 94 EP 94 PG 1 WC Oncology SC Oncology GA 737XF UT WOS:000288603100353 ER PT J AU Bissell, M AF Bissell, M. TI The microenvironment and the genome in breast cancer: how tissue architecture informs SO EJC SUPPLEMENTS LA English DT Meeting Abstract CT 21st Meeting of the European-Association-for-Cancer-Research CY JUN 26-29, 2010 CL Oslo, NORWAY SP European Assoc Canc Res C1 [Bissell, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6349 J9 EJC SUPPL JI EJC Suppl. PD JUN PY 2010 VL 8 IS 5 MA 628 BP 159 EP 159 PG 1 WC Oncology SC Oncology GA 737XF UT WOS:000288603100608 ER PT J AU Jiang, P Chen, JL Borondics, F Glans, PA West, MW Chang, CL Salmeron, M Guo, JH AF Jiang, Peng Chen, Jeng-Lung Borondics, Ferenc Glans, Per-Anders West, Mark W. Chang, Ching-Lin Salmeron, Miguel Guo, Jinghua TI In situ soft X-ray absorption spectroscopy investigation of electrochemical corrosion of copper in aqueous NaHCO3 solution SO ELECTROCHEMISTRY COMMUNICATIONS LA English DT Article DE Soft X-ray absorption spectroscopy; In situ; Cyclic voltammetry; Corrosion; Copper ID ELECTRONIC-STRUCTURE; MICROSCOPY; CATALYSTS; LIQUID; WATER; CELL AB A novel electrochemical setup has been developed for soft X-ray absorption studies of the electronic structure of electrode materials during electrochemical cycling. In this communication we illustrate the operation of the cell with a study of the corrosion behavior of copper in aqueous NaHCO3 solution via the electrochemically induced changes of its electronic structure. This development opens the way for in situ investigations of electrochemical processes, photovoltaics, batteries, fuel cells, water splitting, corrosion, electrodeposition, and a variety of important biological processes. (C) 2010 Elsevier B.V. All rights reserved. C1 [Jiang, Peng; West, Mark W.; Salmeron, Miguel] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Jiang, Peng; Salmeron, Miguel] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Chen, Jeng-Lung; Glans, Per-Anders; Guo, Jinghua] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Chen, Jeng-Lung; Chang, Ching-Lin] Tamkang Univ, Dept Phys, Tamsui, Taiwan. [Borondics, Ferenc] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Salmeron, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Mail Stop 67R2206,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM MBSalmeron@lbl.gov; JGuo@lbl.gov RI Borondics, Ferenc/A-7616-2008; Glans, Per-Anders/G-8674-2016; OI Chang, Ching-Lin/0000-0001-8547-371X FU Office of Naval Research [N00014-08-1-0732]; Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, of the Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Office of Naval Research under Contract No. N00014-08-1-0732. The work at the ALS was supported by the Director, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, of the Department of Energy under Contract No. DE-AC02-05CH11231. The authors thank Dr. Hendrik Bluhm, Dr. Zhi Liu and Dr. Wanli Yang for their helpful discussions. NR 25 TC 37 Z9 37 U1 1 U2 36 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 1388-2481 J9 ELECTROCHEM COMMUN JI Electrochem. Commun. PD JUN PY 2010 VL 12 IS 6 BP 820 EP 822 DI 10.1016/j.elecom.2010.03.042 PG 3 WC Electrochemistry SC Electrochemistry GA 616NI UT WOS:000279215700028 ER PT J AU Ding, D Liu, BB Gong, MY Liu, XB Xia, CR AF Ding, Dong Liu, Beibei Gong, Mingyang Liu, Xingbo Xia, Changrong TI Electrical properties of samaria-doped ceria electrolytes from highly active powders SO ELECTROCHIMICA ACTA LA English DT Article DE Doped ceria; Carbonate coprecipitation; Ionic conductivity; Grain boundary; Grain interior ID OXIDE FUEL-CELLS; CARBONATE COPRECIPITATION; SOLID ELECTROLYTES; IONIC-CONDUCTIVITY; GRAIN-BOUNDARIES; CERAMICS; MICROSTRUCTURES; CE1-XSMXO2-X/2; BEHAVIORS; ZIRCONIA AB The correlations of the microstructures and the electrical properties of high reactive Ce(0) (8)Sm(0 2)O(1) (9) (SDC) powders, synthesized via an optimal carbonate coprecipitation method, were investigated. Microstructure of the SDC ceramics sintered at 900-1400 degrees C showed uniform grain and small grain size, compared with those prepared with various methods under similar sintering conditions. These features may be related to high conductivity (sigma(000 degrees C) = 0.022 S cm(-1)) and low activation energy for conduction (0 66 eV). AC impedance spectra were Involved to resolve grain interior and grain boundary resistance. Grain boundary contribution to the total resistance showed the values below 1/2 at 200-450 degrees C, suggesting low grain boundary effect. The motion enthalpy for the grain interior conduction decreased while the association enthalpy increased with sintering temperature up to 1300 degrees C, which might be possibly originated from the increase in lattice parameters with the sintering temperature (C) 2010 Elsevier Ltd. All rights reserved. C1 [Ding, Dong; Liu, Beibei; Xia, Changrong] Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 23006, Anhui, Peoples R China. [Gong, Mingyang; Liu, Xingbo] W Virginia Univ, Morgantown, WV 26505 USA. [Liu, Xingbo] Natl Energy Technol Lab, Morgantown, WV 26507 USA. RP Xia, CR (reprint author), Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Jinzhai RD 96, Hefei 23006, Anhui, Peoples R China. RI Xia, Changrong/D-5351-2009; Ding, Dong/E-5154-2010; Gong, Mingyang/E-5939-2012; Ding, Dong/S-1973-2016; Ding, Dong/B-9145-2017 OI Ding, Dong/0000-0002-6921-4504; Ding, Dong/0000-0002-6921-4504; Ding, Dong/0000-0002-6921-4504 FU Natural Science Foundation of China [10979046, 50730002]; Ministry of Science and Technology of China [2007AA05Z151] FX This work was supported by the Natural Science Foundation of China (10979046 and 50730002) and the Ministry of Science and Technology of China (2007AA05Z151). NR 40 TC 24 Z9 24 U1 2 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0013-4686 J9 ELECTROCHIM ACTA JI Electrochim. Acta PD JUN 1 PY 2010 VL 55 IS 15 BP 4529 EP 4535 DI 10.1016/j.electacta.2010.03.005 PG 7 WC Electrochemistry SC Electrochemistry GA 610KC UT WOS:000278730400017 ER PT J AU Sun, XG Dai, S AF Sun, Xiao-Guang Dai, Sheng TI Electrochemical investigations of ionic liquids with vinylene carbonate for applications in rechargeable lithium ion batteries SO ELECTROCHIMICA ACTA LA English DT Article DE Ionic liquids; Vinylene carbonate; Pyrrolidinium; Piperidinium; Additive; Lithium ion batteries ID N-PROPYLPIPERIDINIUM BIS(TRIFLUOROMETHANESULFONYL)IMIDE; IN-SITU RAMAN; ROOM-TEMPERATURE; GRAPHITE-ELECTRODES; NEGATIVE ELECTRODE; CYCLING EFFICIENCY; SALT ELECTROLYTES; LI BATTERIES; CELL; COMPATIBILITY AB Ionic liquids based on methylpropylpyrrolidinium (MPPY) and methylpropylpiperidinium (MPPI) cations and bis(trifluoromethanesulfonyl)imide (TFSI) anion have been synthesized and characterized by thermal analysis, cyclic voltammetry, impedance spectroscopy as well as galvanostatic charge/discharge tests. 10 wt% of vinylene carbonate (VC) was added to the electrolytes of 0.5 M LiTFSI/MPPY.TFSI and 0.5 M LiTFSI/MPPI.TFSI, which were evaluated in Li parallel to natural graphite (NG) half cells at 25 degrees C and 50 degrees C under different current densities. At 25 degrees C, due to their intrinsic high viscosities, the charge/discharge capacities under the current density of 80 mu A cm(-2) were much lower than those under the current density of 40 mu A cm(-2). At 50 degrees C, with reduced viscosities, the charge/discharge capacities under both current densities were almost indistinguishable, which were also close to the typical values obtained using conventional carbonate electrolytes. In addition, the discharge capacities of the half cells were very stable with cycling, due to the effective formation of solid electrolyte interphase (SEI) on the graphite electrode On the contrary, the charge/discharge capacities of the Li parallel to LiCoO(2) cells using both ionic liquid electrolytes under the current density of 40 mu A cm(-2) decreased continually with cycling, which were primarily due to the low oxidative stability of VC on the surface of LiCoO(2) Published by Elsevier Ltd. C1 [Sun, Xiao-Guang; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Sun, XG (reprint author), Oak Ridge Natl Lab, Div Chem Sci, POB 2008,MS6201, Oak Ridge, TN 37831 USA. RI Dai, Sheng/K-8411-2015 OI Dai, Sheng/0000-0002-8046-3931 FU ORNL laboratory-directed research and development (LDRD) [D10-036, DE-AC05-00OR22725] FX This work was conducted at the Oak Ridge National Laboratory and supported by the ORNL laboratory-directed research and development (LDRD) grants of D10-036. This work was also partly supported by the ORNL LDRD program under contract No. DE-AC05-00OR22725 with UT-Battelle. LLC. NR 40 TC 63 Z9 63 U1 4 U2 54 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0013-4686 J9 ELECTROCHIM ACTA JI Electrochim. Acta PD JUN 1 PY 2010 VL 55 IS 15 BP 4618 EP 4626 DI 10.1016/j.electacta.2010.03.019 PG 9 WC Electrochemistry SC Electrochemistry GA 610KC UT WOS:000278730400030 ER PT J AU Kawamori, D Liew, CW Hu, J Kurpad, AJ Shadrach, JL Katsuta, H Qian, W Wagers, AJ Kulkarni, RN AF Kawamori, D. Liew, C. W. Hu, J. Kurpad, A. J. Shadrach, J. L. Katsuta, H. Qian, W. Wagers, A. J. Kulkarni, R. N. TI Systemic Signals Promote Enhanced beta-Cell Mitosis in Insulin Resistant Mice. SO ENDOCRINE REVIEWS LA English DT Meeting Abstract CT 92nd Meeting and Expo of the Endocrine Society (ENDO 2010) CY JUN 19-22, 2010 CL San Diego, CA SP Endocrine Society C1 [Kawamori, D.; Liew, C. W.; Hu, J.; Kurpad, A. J.; Shadrach, J. L.; Katsuta, H.; Wagers, A. J.; Kulkarni, R. N.] Joslin Diabet Ctr, Boston, MA 02215 USA. [Kawamori, D.; Liew, C. W.; Hu, J.; Kurpad, A. J.; Shadrach, J. L.; Katsuta, H.; Wagers, A. J.; Kulkarni, R. N.] Harvard Univ, Sch Med, Boston, MA USA. [Qian, W.] Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENDOCRINE SOC PI CHEVY CHASE PA 8401 CONNECTICUT AVE, SUITE 900, CHEVY CHASE, MD 20815-5817 USA SN 0163-769X J9 ENDOCR REV JI Endocr. Rev. PD JUN PY 2010 VL 31 IS 3 SU 1 BP S2485 EP S2485 PG 1 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 652FV UT WOS:000281989400192 ER PT J AU Qian, WJ Zhou, JY Liew, CW Petyuk, VA Moore, RJ Camp, DG Kulkarni, RN Smith, RD AF Qian, W. J. Zhou, J. Y. Liew, C. W. Petyuk, V. A. Moore, R. J. Camp, D. G. Kulkarni, R. N. Smith, R. D. TI Proteomics Profiling of Putative Growth Factors in Mouse Plasma and Pancreatic Islets by Mass Spectrometry. SO ENDOCRINE REVIEWS LA English DT Meeting Abstract CT 92nd Meeting and Expo of the Endocrine Society (ENDO 2010) CY JUN 19-22, 2010 CL San Diego, CA SP Endocrine Society C1 [Qian, W. J.; Zhou, J. Y.; Petyuk, V. A.; Moore, R. J.; Camp, D. G.; Smith, R. D.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Liew, C. W.; Kulkarni, R. N.] Joslin Diabet Ctr, Boston, MA 02215 USA. RI Zhou, Jian-Ying/D-1308-2012; Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 NR 0 TC 0 Z9 0 U1 0 U2 2 PU ENDOCRINE SOC PI CHEVY CHASE PA 8401 CONNECTICUT AVE, SUITE 900, CHEVY CHASE, MD 20815-5817 USA SN 0163-769X J9 ENDOCR REV JI Endocr. Rev. PD JUN PY 2010 VL 31 IS 3 SU 1 PG 1 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 652FV UT WOS:000281989402136 ER PT J AU Brown, TD Taylor, CE Bernardo, MP AF Brown, Thomas D. Taylor, Charles E. Bernardo, Mark P. TI Rapid Gas Hydrate Formation Processes: Will They Work? SO ENERGIES LA English DT Article DE methane hydrate formation techniques; increasing hydrate formation rate(s); rapid gas hydrate formation techniques; formation, storage, transportation of methane hydrate ID WATER DROPLETS; METHANE; MORPHOLOGY; ETHANE; FILMS AB Researchers at DOE's National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETL's 15-Liter Hydrate Cell. Results from this work demonstrate that the rapid and continuous formation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve (see Figure 1). C1 [Brown, Thomas D.; Taylor, Charles E.] US DOE, NETL, Pittsburgh, PA 15236 USA. [Bernardo, Mark P.] US DOE, ORISE, Pittsburgh, PA 15236 USA. RP Brown, TD (reprint author), US DOE, NETL, 626 Cochrans Mill Rd,POB 10940, Pittsburgh, PA 15236 USA. EM thomas.brown@netl.doe.gov; charles.taylor@netl.doe.gov; bernardomp1@gmail.com NR 18 TC 15 Z9 17 U1 0 U2 11 PU MDPI AG PI BASEL PA POSTFACH, CH-4005 BASEL, SWITZERLAND SN 1996-1073 J9 ENERGIES JI Energies PD JUN PY 2010 VL 3 IS 6 BP 1154 EP 1175 DI 10.3390/en3061154 PG 22 WC Energy & Fuels SC Energy & Fuels GA 615XK UT WOS:000279171700005 ER PT J AU Chen, Q Yang, KD Wang, MR Pan, N Guo, ZY AF Chen, Qun Yang, Kangding Wang, Moran Pan, Ning Guo, Zeng-Yuan TI A new approach to analysis and optimization of evaporative cooling system I: Theory SO ENERGY LA English DT Article; Proceedings Paper CT 7th International Conference on Sustainable Energy Technologies CY FEB 20-21, 2008 CL Liverpool, ENGLAND DE Evaporative cooling; Energy conservation; Moisture entransy and dissipation; Thermal resistance; Temperature potential ID ENTRANSY DISSIPATION EXTREMUM; CONVECTIVE HEAT-TRANSFER; IRREVERSIBLE-PROCESSES; RECIPROCAL RELATIONS; ENERGY; AIR; PRINCIPLE; COOLER; TOWER; FLOW AB Using the analogy between heat and mass transfer processes, the recently developed entransy theory is extended in this paper to tackle the coupled heat and mass transfer processes so as to analyze and optimize the performance of evaporative cooling systems. We first introduce a few new concepts including the moisture entransy, moisture entransy dissipation, and the thermal resistance in terms of the moisture entransy dissipation. Thereinafter, the moisture entransy is employed to describe the endothermic ability of a moist air. The moisture entransy dissipation on the other hand is used to measure the loss of the endothermic ability, i.e. the irreversibility, in the coupled heat and mass transfer processes this total loss is shown to consist of three parts: (1) the sensible heat entransy dissipation, (2) the latent heat entransy dissipation, and (3) the entransy dissipation induced by a temperature potential. Finally the new thermal resistance, defined as the moisture entransy dissipation rate divided by the squared refrigerating effect output rate, is recommended as an index to effectively reflect the performance of the evaporative cooling system. In the end, two typical evaporative cooling processes are analyzed to illustrate the applications of the proposed concepts. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Chen, Qun; Yang, Kangding; Guo, Zeng-Yuan] Tsinghua Univ, Dept Engn Mech, Minist Educ, Key Lab Thermal Sci & Power Engn, Beijing 100084, Peoples R China. [Chen, Qun; Pan, Ning] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA. [Wang, Moran] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. RP Chen, Q (reprint author), Tsinghua Univ, Dept Engn Mech, Minist Educ, Key Lab Thermal Sci & Power Engn, Beijing 100084, Peoples R China. EM chenqun@tsinghua.edu.cn RI Wang, Moran/A-1150-2010; Pan, Ning/B-1315-2008; Wei, Jianjian/F-7788-2011 OI Pan, Ning/0000-0002-8772-2596; Wei, Jianjian/0000-0001-8859-8462 NR 36 TC 54 Z9 71 U1 2 U2 32 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 J9 ENERGY JI Energy PD JUN PY 2010 VL 35 IS 6 SI SI BP 2448 EP 2454 DI 10.1016/j.energy.2010.02.037 PG 7 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA 607LU UT WOS:000278506400010 ER PT J AU McNeil, MA Letschert, VE AF McNeil, Michael A. Letschert, Virginie E. TI Modeling diffusion of electrical appliances in the residential sector SO ENERGY AND BUILDINGS LA English DT Article DE Energy demand modeling; Residential; Appliances; Refrigerators; Washing machines; Televisions; Air conditioners; Diffusion rates; Regression analysis AB This paper presents a methodology for modeling residential appliance uptake as a function of root macroeconomic drivers. The analysis concentrates on four major energy end uses in the residential sector: refrigerators, washing machines, televisions and air conditioners. The model employs linear regression analysis to parameterize appliance ownership in terms of household income, urbanization and electrification rates according to a standard binary choice (logistic) function. The underlying household appliance ownership data are gathered from a variety of sources including energy consumption and more general standard of living surveys. These data span a wide range of countries, including many developing countries for which appliance ownership is currently low, but likely to grow significantly over the next decades as a result of economic development. The result is a 'global' parameterization of appliance ownership rates as a function of widely available macroeconomic variables for the four appliances studied, which provides a reliable basis for interpolation where data are not available, and forecasting of ownership rates on a global scale. The main value of this method is to form the foundation of bottom-up energy demand forecasts, project energy-related greenhouse gas emissions, and allow for the construction of detailed emissions mitigation scenarios. (C) 2009 Elsevier B.V. All rights reserved. C1 [McNeil, Michael A.] Lawrence Berkeley Natl Lab, Energy Anal Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP McNeil, MA (reprint author), Lawrence Berkeley Natl Lab, Energy Anal Dept, Environm Energy Technol Div, 1 Cyclotron Rd,MS 90R4000, Berkeley, CA 94720 USA. EM mamcneil@lbl.gov NR 12 TC 16 Z9 16 U1 0 U2 2 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PD JUN PY 2010 VL 42 IS 6 BP 783 EP 790 DI 10.1016/j.enbuild.2009.11.015 PG 8 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA 597GK UT WOS:000277744400003 ER PT J AU Shaw, WJ Bowden, M Karkamkar, A Howard, CJ Heldebrant, DJ Hess, NJ Linehan, JC Autrey, T AF Shaw, Wendy J. Bowden, Mark Karkamkar, Abhi Howard, Christopher J. Heldebrant, David J. Hess, Nancy J. Linehan, John C. Autrey, Tom TI Characterization of a new phase of ammonia borane SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID SOLID-STATE NMR; HYDROGEN STORAGE; THERMAL-DECOMPOSITION; QUADRUPOLAR NUCLEI; ROTATOR PHASE; ORTHORHOMBIC PHASE; DIHYDROGEN BOND; HIGH-PRESSURE; MAS-NMR; X-RAY AB An uncharacterized phase of ammonia borane (AB) was previously identified while investigating the thermal aging of this hydrogen rich solid state material. This phase was identified as a key intermediate for the release of hydrogen from AB prompting the current characterization study. The new phase (AB*) was investigated extensively using in situ solid state MAS NMR spectroscopy, including (11)B, (15)N and (1)H NMR. Single-pulse excitation, cross polarization and T(1) relaxation experiments for all nuclei collectively demonstrated a significant increase in mobility of AB in the new phase compared to the room temperature phase of AB, consistent with a highly mobile solid. This implies a disruption of the extensive dihydrogen bonding network, allowing increased motional freedom. Complementary studies by in situ X-ray diffraction showed AB* to have the same crystal lattice as AB, but suggested an expanded lattice, providing support for increased mobility. NMR measurements of AB embedded into a mesoporous scaffold were also consistent with high mobility in AB*. These data suggest that a breakdown of the extensive hydrogen bonding network occurs before hydrogen can be released and will be an important factor in the practical use of AB as a hydrogen storage material. C1 [Shaw, Wendy J.; Bowden, Mark; Karkamkar, Abhi; Howard, Christopher J.; Heldebrant, David J.; Hess, Nancy J.; Linehan, John C.; Autrey, Tom] Pacific NW Natl Lab, Richland, WA 99354 USA. RP Shaw, WJ (reprint author), Pacific NW Natl Lab, POB 999,MS K2-57, Richland, WA 99354 USA. EM wendy.shaw@pnl.gov OI Hess, Nancy/0000-0002-8930-9500 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy; U.S. Department of Energy's Office of Biological and Environmental Research FX Support for this work by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy and facilitated by the International Partnership for the Hydrogen Economy. A portion of the research described in this paper was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. PNNL is operated by Battelle for the US DOE. The authors are grateful for the assistance given by Dr Kia Wallwork and staff at the Australian Synchrotron, Victoria, Australia. We also gratefully acknowledge Paul Ellis and Andy Lipton for fruitful discussions. NR 44 TC 35 Z9 36 U1 0 U2 30 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1754-5692 J9 ENERG ENVIRON SCI JI Energy Environ. Sci. PD JUN PY 2010 VL 3 IS 6 BP 796 EP 804 DI 10.1039/b914338f PG 9 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 616XU UT WOS:000279245600011 ER PT J AU Qu, Z Chang, JJ Hsiung, TL Yan, NQ Wang, HP Dod, R Chang, SG Miller, C AF Qu, Zan Chang, Joseph J. Hsiung, Tung-Li Yan, Naiqiang Wang, H. Paul Dod, Ray Chang, Shih-Ger Miller, Charles TI Halides on Carbonaceous Materials for Enhanced Capture of Hg-0: Mechanistic Study SO ENERGY & FUELS LA English DT Article ID FIRED POWER-PLANTS; FLUE-GAS; ACTIVATED CARBON; MERCURY SPECIATION; ELEMENTAL MERCURY; COAL COMBUSTION; GRAPHITE; OXIDATION; SORPTION; REMOVAL AB Use of amorphous carbon particles impregnated with halides has been demonstrated to be very effective for the capture of elemental mercury (Hg-0) from power plant flue gases. Despite the fact that the halides employed are not oxidants, the Hg-0 captured is found to be in an oxidized form. Although this approach has been widely accepted for the control of mercury emissions, the mechanism responsible for enhancing Hg-0 capture and subsequent oxidation is not well-understood. We investigated the chemistry of halogenated carbonaceous materials and propose a mechanism that appears to be able to explain both the enhancement of Hg-0 capture and its subsequent oxidation. Interaction of microcrystalline graphitic structures in amorphous carbon with halide ions results in the formation of charge-transfer compounds, with halide ions withdrawing electrons from the graphitic lattice, making the carbon particle a stronger Lewis acid and resulting in the enhancement of its ability to attract electrons from the highly polarizable Hg-0. Upon contact, the electron transfer produces oxidized mercury, with the graphitic structure as a counterion. This study may have implications in other areas; for example, the combination of sea spray and soot could enhance the oxidation of atmospheric mercury vapor, with potential effects on its residency and bioavailability. C1 [Qu, Zan; Hsiung, Tung-Li; Yan, Naiqiang; Wang, H. Paul; Dod, Ray; Chang, Shih-Ger] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Chang, Joseph J.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Miller, Charles] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RP Chang, SG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. EM sgchang@lbl.gov FU U.S. Department of Energy through the National Energy Technology Laboratory [DE-AC02-05CH11231] FX This work was supported by the Assistant Secretary for Fossil Energy, U.S. Department of Energy, under Contract DE-AC02-05CH11231, through the National Energy Technology Laboratory. NR 52 TC 13 Z9 13 U1 4 U2 29 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0887-0624 J9 ENERG FUEL JI Energy Fuels PD JUN PY 2010 VL 24 BP 3534 EP 3539 DI 10.1021/ef9013086 PG 6 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 611VG UT WOS:000278851200034 ER PT J AU Li, LY King, DL Nie, ZM Li, XS Howard, C AF Li, Liyu King, David L. Nie, Zimin Li, Xiaohong Shari Howard, Chris TI MgAl2O4 Spinel-Stabilized Calcium Oxide Absorbents with Improved Durability for High-Temperature CO2 Capture SO ENERGY & FUELS LA English DT Article ID WARM GAS TEMPERATURES; CARBON-DIOXIDE; POWER-PLANT; FLUE-GAS; SORBENTS; CAO; CAPACITY; CYCLES; SORPTION; EFFICIENCY AB With efficient energy recovery, calcium-oxide-based absorbents that operate at elevated temperatures have an advantage over absorbents that operate at lower temperatures for CO2 capture from coal power plants. The major limitation of these absorbents is that the carbonation and decarbonation reactions of CaO and CaCO3 are for from complete or reversible. Rapid loss of CO2 capacity over many carbonation/decarbonation cycles is always observed because of severe absorbent sintering. We have found that this sintering effect can be effectively mitigated by properly mixing calcium oxide precursors with small rod-like MgAl2O4 spinel nanoparticles. A new class of CaO-based absorbents with much improved high-temperature durability was developed by wet physical mixing of calcium acetate with nano MgAl2O4 spinet particles followed by high-temperature calcination. CaO-MgAl2O4 (32 wt % spinet content) material provides 34 wt % CO2 capacity after 65 carbonation decarbonation cycles (650 and 850 degrees C, respectively), corresponding to 63% CaO use. Under the same test conditions, the CO2 capacity of natural dolomite (35 wt % MgO and 65 wt % CaO) decreases rapidly from 25 wt % for the 1st cycle to less than 5 wt % for the 50th cycle. C1 [Li, Liyu; King, David L.; Nie, Zimin; Li, Xiaohong Shari; Howard, Chris] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99354 USA. RP Li, LY (reprint author), Pacific NW Natl Lab, Inst Interfacial Catalysis, POB 999, Richland, WA 99354 USA. EM liyu.li@pnl.gov FU Battelle Memorial Institute (BMI) FX Financial support from the Battelle Memorial Institute (BMI) is gratefully acknowledged. This work was performed in part at the Intethicial and Nano Science Facility in the William R. Wiley Environmental Molecular Sciences Laboratory. a national scientific user facility sponsored by the Office of Biological and Environmental Research of the U.S. Department of Energy and located at the Pacific Northwest National Laboratory (PNNL). PNNL is operated for the U.S. Department of Energy by Battelle. NR 42 TC 36 Z9 39 U1 0 U2 41 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0887-0624 EI 1520-5029 J9 ENERG FUEL JI Energy Fuels PD JUN PY 2010 VL 24 BP 3698 EP 3703 DI 10.1021/ef100245q PG 6 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 611VG UT WOS:000278851200057 ER PT J AU Hoogwijk, M du Can, SD Novikova, A Urge-Vorsatz, D Blomen, E Blok, K AF Hoogwijk, Monique du Can, Stephane de la Rue Novikova, Aleksandra Urge-Vorsatz, Diana Blomen, Eliane Blok, Kornelis TI Assessment of bottom-up sectoral and regional mitigation potentials SO ENERGY POLICY LA English DT Article DE Sectoral mitigation costs; Climate policy ID ENERGY EFFICIENCY AB The greenhouse gas mitigation potential of different economic sectors in three world regions are estimated using a bottom-up approach. These estimates provide updates of the numbers reported in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR4). This study is part of a larger project aimed at comparing greenhouse gas mitigation potentials from bottom-up and top-down approaches. The sectors included in the analysis are energy supply, transport, industry and the residential and service sector. The mitigation potentials range from 11 to 15 GtCO(2)eq. This is 26-38% of the baseline in 2030 and 47-68% relative to the year 2000. Potential savings are estimated for different cost levels. The total potential at negative costs is estimated at 5-8% relative to the baseline, with the largest share in the residential and service sector and the highest reduction percentage for the transport and industry sectors. These (negative) costs include investment, operation and maintenance and fuel costs and revenues at moderate discount rates of 3-10%. At costs below 100 USS/tCO(2), the largest potential reductions in absolute terms are estimated in the energy supply sector, while the transport sector has the lowest reduction potential. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Hoogwijk, Monique; Blomen, Eliane; Blok, Kornelis] Ecofys Netherlands BV, NL-3503 RK Utrecht, Netherlands. [du Can, Stephane de la Rue] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Novikova, Aleksandra; Urge-Vorsatz, Diana] CEU, Budapest, Hungary. RP Hoogwijk, M (reprint author), Ecofys Netherlands BV, Kanaalweg 16-G,POB 8408, NL-3503 RK Utrecht, Netherlands. EM M.Hoogwijk@ecofys.com RI Novikova, Aleksandra/C-7855-2014; Blok, Kornelis/D-9532-2014; OI Novikova, Aleksandra/0000-0002-4442-3553; Urge-Vorsatz, Diana/0000-0003-2570-5341 FU Netherlands Ministry of Spatial Planning, Housing and the Environment (VROM) FX This project has been funded by the Netherlands Ministry of Spatial Planning, Housing and the Environment (VROM) via The Netherlands Programme on Scientific Assessment and Policy Analysis Climate Change (WAB). We are grateful to Jeroen Peters (PBL) and the steering committee of the project, consisting of Patrick Todd, Kees Vijverberg (VROM) and Leo Meyer (PBL). NR 20 TC 6 Z9 6 U1 2 U2 6 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 JUN PY 2010 VL 38 IS 6 BP 3044 EP 3057 DI 10.1016/j.enpol.2010.01.045 PG 14 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 601JS UT WOS:000278055700056 ER PT J AU Hanks, B AF Hanks, Byron TI Guest editorial: 14th International Meshing Roundtable Special Issue SO ENGINEERING WITH COMPUTERS LA English DT Editorial Material C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Hanks, B (reprint author), Sandia Natl Labs, MS 0382,POB 5800, Albuquerque, NM 87185 USA. EM bwhanks@sandia.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0177-0667 J9 ENG COMPUT-GERMANY JI Eng. Comput. PD JUN PY 2010 VL 26 IS 3 SI SI BP 213 EP 213 DI 10.1007/s00366-010-0189-3 PG 1 WC Computer Science, Interdisciplinary Applications; Engineering, Mechanical SC Computer Science; Engineering GA 602QD UT WOS:000278153000001 ER PT J AU Quadros, WR Vyas, V Brewer, M Owen, SJ Shimada, K AF Quadros, William Roshan Vyas, Ved Brewer, Mike Owen, Steven James Shimada, Kenji TI A computational framework for automating generation of sizing function in assembly meshing via disconnected skeletons SO ENGINEERING WITH COMPUTERS LA English DT Article; Proceedings Paper CT 14th International Meshing Roundtable CY SEP 11-14, 2005 CL San Diego, CA DE Assembly meshing; Finite element mesh sizing function; Skeleton; Pre-mesh AB This paper proposes a framework for generating mesh sizing functions for assembly models. Size control is crucial in obtaining a high-quality mesh with a reduced number of elements. The reduction in the number of elements will decrease computation time and memory use during mesh generation and analysis. The framework consists of a background octree lattice for storing the sizing function, a set of source entities for providing sizing information based on geometric information, and an interpolation module for calculating the sizing on the background octree lattice using the source entities. Source entities are generated by performing a detailed systematic study to identify all the geometric factors of an assembly. Disconnected skeletons are extracted and used as tools to measure 3D proximity and 2D proximity, which are two of the geometric factors. The framework facilitates the generation of a variety of meshes with a low computational cost, to meet industry needs. The framework has been tested on many industrial parts, and sizing control on a few typical assemblies has been presented to demonstrate the effectiveness of the proposed framework. C1 [Quadros, William Roshan; Vyas, Ved; Shimada, Kenji] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA. [Brewer, Mike; Owen, Steven James] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Quadros, WR (reprint author), Sandia Natl Labs, POB 5800,MS 1321, Albuquerque, NM 87185 USA. EM wrquadr@sandia.gov NR 28 TC 9 Z9 11 U1 0 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0177-0667 J9 ENG COMPUT-GERMANY JI Eng. Comput. PD JUN PY 2010 VL 26 IS 3 SI SI BP 231 EP 247 DI 10.1007/s00366-009-0164-z PG 17 WC Computer Science, Interdisciplinary Applications; Engineering, Mechanical SC Computer Science; Engineering GA 602QD UT WOS:000278153000003 ER PT J AU Lipnikov, K Vassilevski, Y AF Lipnikov, Konstantin Vassilevski, Yuri TI On discrete boundaries and solution accuracy in anisotropic adaptive meshing SO ENGINEERING WITH COMPUTERS LA English DT Article; Proceedings Paper CT 14th International Meshing Roundtable CY SEP 11-14, 2005 CL San Diego, CA DE Surface reconstruction; Hessian recovery; Adaptive meshes ID GEOMETRY; MESHES AB In the adaptive mesh generation, the space mesh should be adequate to the surface mesh. When the analytical surface representation is not known, additional surface information may be extracted from triangular surface meshes. We describe a new surface reconstruction method which uses approximate Hessian of a piecewise linear function representing the discrete surface. Efficiency of the proposed method is illustrated with two CFD applications. C1 [Lipnikov, Konstantin] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Vassilevski, Yuri] Inst Numer Math, Moscow, Russia. RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM lipnikov@lanl.gov; vasilevs@dodo.inm.ras.ru RI Vassilevski, Yuri/A-6068-2016 NR 15 TC 0 Z9 0 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0177-0667 J9 ENG COMPUT-GERMANY JI Eng. Comput. PD JUN PY 2010 VL 26 IS 3 SI SI BP 281 EP 288 DI 10.1007/s00366-009-0158-x PG 8 WC Computer Science, Interdisciplinary Applications; Engineering, Mechanical SC Computer Science; Engineering GA 602QD UT WOS:000278153000006 ER PT J AU Suzuki, T Takahashi, S Shepherd, J AF Suzuki, Tatsuhiko Takahashi, Shigeo Shepherd, Jason TI An interior surface generation method for all-hexahedral meshing SO ENGINEERING WITH COMPUTERS LA English DT Article; Proceedings Paper CT 14th International Meshing Roundtable CY SEP 11-14, 2005 CL San Diego, CA DE All-hexahedral mesh generation; Interior surface arrangement; Dual cycle; Schneiders' pyramid ID ALGORITHM AB This paper describes an all-hexahedral generation method focusing on how to create interior surfaces. It is well known that a solid homeomorphic to a ball with even number of bounding quadrilaterals can be partitioned into a compatible hexahedral mesh where each associated hexahedron corresponds to the intersection of three interior surfaces that are dual to the original hexahedral mesh. However, no such method for creating dual interior surfaces has been developed for generating all-hexahedral meshes of volumes covered with simply connected quadrilaterals. We generate an interior surface as an orientable regular homotopy (or more definitively a sweep) by splitting a dual cycle into several pieces at self-intersecting points and joining the three connected pieces, if the self-intersecting point-types are identical, while we generate a non-orientable surface (containing Mobius bands) if the self-intersecting point-types are distinct. Stitching these simple interior surfaces together allows us to compose more complex interior surfaces. Thus, we propose a generalized method of generating a hexahedral mesh topology by directly creating the interior surface arrangement. We apply the present framework to Schneiders' open pyramid problem and show an arrangement of interior surfaces that decompose Schneiders' pyramid into 146 hexahedra. C1 [Suzuki, Tatsuhiko] Digital Proc Ltd, Kanagawa 2430018, Japan. [Takahashi, Shigeo] Univ Tokyo, Chiba 2778561, Japan. [Shepherd, Jason] Sandia Natl Labs, Data Anal & Visualizat Dept, Albuquerque, NM 87185 USA. RP Suzuki, T (reprint author), Digital Proc Ltd, 2-9-6 Nakacho, Kanagawa 2430018, Japan. EM tsuzuki@dipro.co.jp; takahashis@acm.org; jfsheph@sandia.gov NR 15 TC 3 Z9 3 U1 0 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0177-0667 J9 ENG COMPUT-GERMANY JI Eng. Comput. PD JUN PY 2010 VL 26 IS 3 SI SI BP 303 EP 316 DI 10.1007/s00366-009-0159-9 PG 14 WC Computer Science, Interdisciplinary Applications; Engineering, Mechanical SC Computer Science; Engineering GA 602QD UT WOS:000278153000008 ER PT J AU Gowardhan, AA Brown, MJ Pardyjak, ER AF Gowardhan, Akshay A. Brown, Michael J. Pardyjak, Eric R. TI Evaluation of a fast response pressure solver for flow around an isolated cube SO ENVIRONMENTAL FLUID MECHANICS LA English DT Article DE Fast-response; Urban dispersion modeling; Indoor/outdoor dispersion; Pressure coefficient; Pressure on building surfaces ID MODEL AB This work describes and evaluates a pressure solver that has been incorporated into a fast response three-dimensional building-resolving diagnostic wind modeling system. The solver computes the three-dimensional pressure field around buildings and on exterior walls in terms of a coefficient of pressure by solving a simplified pressure Poisson equation (that neglects turbulence stresses in the Navier-Stokes) for incompressible flow. The input to the solver is the three-dimensional mean wind field obtained from a fast response empirical-diagnostic urban wind model. The present study is an evaluation of the pressure solver using wind-tunnel data for flow normal to and at a 45A degrees angle to an isolated cubical building. Results for the normal incident wind angle case indicate that the model satisfactorily reproduces the general spatial patterns and the magnitude of the pressure difference around much of the cube. Details of the flow field that are not satisfactorily predicted include the spatial distribution of pressure on the roof and the lower half of the front side of the building and the magnitude along the sidewalls where pressures are over predicted. The results for the 45A degrees case show reasonable agreement between the model and experiments on the front and the back walls, but over predict pressures on the leading edge of the rooftop. Regions with poor pressure predictions appear to be a result of unsatisfactory mean wind modeling. C1 [Gowardhan, Akshay A.; Pardyjak, Eric R.] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA. [Gowardhan, Akshay A.; Brown, Michael J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Pardyjak, ER (reprint author), Univ Utah, Dept Mech Engn, Room 2110, Salt Lake City, UT 84112 USA. EM pardyjak@eng.utah.edu OI Brown, Michael J./0000-0002-8069-0835 FU Biological Countermeasures Office in the Department of Homeland Security; Joint Science Technology Office in the Defense Threat Reduction Agency FX This work has been supported by the Biological Countermeasures Office in the Department of Homeland Security and by the Joint Science Technology Office in the Defense Threat Reduction Agency. NR 28 TC 8 Z9 8 U1 0 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1567-7419 J9 ENVIRON FLUID MECH JI Environ. Fluid Mech. PD JUN PY 2010 VL 10 IS 3 BP 311 EP 328 DI 10.1007/s10652-009-9152-5 PG 18 WC Environmental Sciences; Mechanics; Meteorology & Atmospheric Sciences; Oceanography; Water Resources SC Environmental Sciences & Ecology; Mechanics; Meteorology & Atmospheric Sciences; Oceanography; Water Resources GA 590CA UT WOS:000277199800002 ER PT J AU Xing, CH Marchetti, F Li, GL Weldon, RH Kurtovich, E Young, S Schmid, TE Zhang, LP Rappaport, S Waidyanatha, S Wyrobek, AJ Eskenazi, B AF Xing, Caihong Marchetti, Francesco Li, Guilan Weldon, Rosana H. Kurtovich, Elaine Young, Suzanne Schmid, Thomas E. Zhang, Luoping Rappaport, Stephen Waidyanatha, Suramya Wyrobek, Andrew J. Eskenazi, Brenda TI Benzene Exposure Near the US Permissible Limit Is Associated with Sperm Aneuploidy SO ENVIRONMENTAL HEALTH PERSPECTIVES LA English DT Article DE aneuploidy; benzene; chromosome X; chromosome Y; chromosome 21; fluorescent in situ hybridization; germ cells; muconic acid ID IN-SITU HYBRIDIZATION; SEX-CHROMOSOME ANEUPLOIDY; KLINEFELTER-SYNDROME; UNEXPOSED SUBJECTS; URINARY BENZENE; MULTICOLOR FISH; WORKERS; SPERMATOZOA; LEUKEMIA; CHEMOTHERAPY AB BACKGROUND: Benzene is a common industrial chemical known to induce leukemia and other blood disorders, as well as aneuploidy, in both human blood cells and sperm at exposures > 10 ppm. Recent reports have identified health effects at exposure levels < 1 ppm, the permissible exposure limit (PEL; 8 hr) set by the U.S. Occupational Safety and Health Administration. OBJECTIVE: We investigated whether occupational exposures to benzene near 1 ppm induce aneuploidy in sperm. METHODS: We used multicolor fluorescence in situ hybridization to measure the incidence of sperm with numerical abnormalities of chromosomes X, Y, and 21 among 33 benzene-exposed men and 33 unexposed men from Chinese factories. Individual exposures were assessed using personal air monitoring and urinary concentrations of benzene and trans,trans-muconic acid (E,E-MA). Air benzene concentrations were not detectable in unexposed men; in exposed men, concentrations ranged from below the detection limit to 24 ppm (median, 2.9 ppm), with 27% of exposed men = 9) having concentrations of <= 1 ppm. Exposed men were categorized into low and high groups based on urinary E,E-MA (median concentrations of 1.9 and 14.4 mg/L, respectively; median air benzene of 1 and 7.7 ppm, respectively), and aneuploidy frequencies were compared with those of unexposed men. RESULTS: Sperm aneuploidy increased across low- and high-exposed groups for disomy X [incidence rate ratio (IRR) = 2.0; 95% confidence interval (CI), 1.1-3.4; and IRR = 2.8; 95% CI, 1.5-4.9, respectively], and for overall hyperhaploidy for the three chromosomes investigated (IRR = 1.6; 95% CI, 1.0-2.4; and IRR = 2.3; 95% CI, 1.5-3.6, respectively). We also found elevated disomy X and hyperhaploidy in the nine men exposed to <= 1 ppm benzene compared with unexposed men (IRR = 1.8; 95% CI, 1.1-3.0; and IRR = 2.0; 95% CI, 1.1-3.9, respectively). CONCLUSIONS: Benzene appeared to increase the frequencies of aneuploid sperm for chromosomes associated with chromosomal abnormality syndromes in human offspring, even in men whose air benzene exposure was at or below the U.S. permissible exposure limit. C1 [Eskenazi, Brenda] Univ Calif Berkeley, Sch Publ Hlth, Ctr Childrens Environm Hlth Res, Berkeley, CA 94704 USA. [Waidyanatha, Suramya] Univ N Carolina, Chapel Hill, NC USA. [Xing, Caihong; Marchetti, Francesco; Schmid, Thomas E.; Wyrobek, Andrew J.] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA USA. [Xing, Caihong; Li, Guilan] Chinese Ctr Dis Control & Prevent, Natl Inst Occupat Hlth & Poison Control, Beijing, Peoples R China. RP Eskenazi, B (reprint author), Univ Calif Berkeley, Sch Publ Hlth, Ctr Childrens Environm Hlth Res, 1995 Univ Ave,Suite 265, Berkeley, CA 94704 USA. EM eskenazi@berkeley.edu OI Marchetti, Francesco/0000-0002-9435-4867 FU National Institute of Environmental Health Sciences, National Institutes of Health [R03 ES015340-02]; U.S. Environmental Protection Agency [P42 ES04705]; U.S. Department of Energy by the Lawrence Livermore National Laboratory [W-7405-END-48]; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; American Petroleum Institute; American Chemistry Council FX This research was supported by grant R03 ES015340-02 from the National Institute of Environmental Health Sciences, National Institutes of Health, and by grant P42 ES04705 from the U.S. Environmental Protection Agency. The work was performed in part under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract W-7405-END-48 and Lawrence Berkeley National Laboratory under contract DE-AC02-05CH11231.; The ideas expressed in this manuscript are those of the authors and do not necessarily reflect the official views of the funders or institutions.; S.R. has received consulting and expert testimony fees from law firms representing plaintiffs' cases involving exposure to benzene and has received research support from the American Petroleum Institute and the American Chemistry Council. All other authors declare that they have no actual or potential competing financial interests. NR 47 TC 22 Z9 25 U1 1 U2 3 PU US DEPT HEALTH HUMAN SCIENCES PUBLIC HEALTH SCIENCE PI RES TRIANGLE PK PA NATL INST HEALTH, NATL INST ENVIRONMENTAL HEALTH SCIENCES, PO BOX 12233, RES TRIANGLE PK, NC 27709-2233 USA SN 0091-6765 J9 ENVIRON HEALTH PERSP JI Environ. Health Perspect. PD JUN PY 2010 VL 118 IS 6 BP 833 EP 839 DI 10.1289/ehp.0901531 PG 7 WC Environmental Sciences; Public, Environmental & Occupational Health; Toxicology SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Toxicology GA 608NP UT WOS:000278591300029 PM 20418200 ER PT J AU Castorina, R Bradman, A Fenster, L Barr, DB Bravo, R Vedar, MG Harnly, ME McKone, TE Eisen, EA Eskenazi, B AF Castorina, Rosemary Bradman, Asa Fenster, Laura Barr, Dana Boyd Bravo, Roberto Vedar, Michelle G. Harnly, Martha E. McKone, Thomas E. Eisen, Ellen A. Eskenazi, Brenda TI Comparison of Current-Use Pesticide and Other Toxicant Urinary Metabolite Levels among Pregnant Women in the CHAMACOS Cohort and NHANES SO ENVIRONMENTAL HEALTH PERSPECTIVES LA English DT Article DE ETU; exposure; NHANES; organophosphate; pesticides; pregnancy; prenatal; urinary metabolites; women ID TANDEM MASS-SPECTROMETRY; 24-HOUR CREATININE CLEARANCE; ORGANOPHOSPHOROUS PESTICIDES; REFERENCE VALUES; EXPOSURE; ETHYLENETHIOUREA; POPULATION; WORKERS; QUANTIFICATION; CALIFORNIA AB BACKGROUND: We measured 34 metabolites of current-use pesticides and other precursor compounds in urine samples collected twice during pregnancy from 538 women living in the Salinas Valley of California, a highly agricultural area (1999-2001). Precursors of these metabolites included fungicides, carbamate, organochlorine, organophosphorus (OP), and pyrethroid insecticides, and triazine and chloroacetanilide herbicides. We also measured ethylenethiourea, a metabolite of the ethylene-bisdithiocarbamate fungicides. Repeat measurements of the compounds presented here have not been reported in pregnant women previously. To understand the impact of the women's regional environment on these findings, we compared metabolite concentrations from the CHAMACOS (Center for the Health Assessment of Mothers and Children of Salinas) cohort with U.S. national reference data for 342 pregnant women sampled by the National Health and Nutrition Examination Survey (1999-2002). RESULTS: The eight metabolites detected in > 50% of samples [2,4-dichlorophenol (2,4-DCP); 2,5-dichlorophenol (2,5-DCP); 1- and 2-naphthol; ortho-phenylphenol (ORTH); para-nitrophenol (PNP); 2,4,6-trichlorophenol (2,4,6-TCP); and 3,4,6-trichloro-2-pyridinol (TCPy)] may be related to home or agricultural pesticide use in the Salinas Valley, household products, and other sources of chlorinated phenols. More than 78% of women in this study had detectable levels of at least one of the OP pesticide-specific metabolites that we measured, and > 30% had two or more. The 95th percentile values of six of the most commonly detected (> 50%) compounds were significantly higher among the CHAMACOS women after controlling for age, race, socioeconomic status, and smoking [(2,4-DCP; 2,5-DCP; ORTH; PNP; 2,4,6-TCP; and TCPy); quantile regression p < 0.05]. CONCLUSIONS: Findings suggest that the CHAMACOS cohort has an additional burden of precursor pesticide exposure compared with the national sample, possibly from living and/or working in an agricultural area. C1 [Castorina, Rosemary] Univ Calif Berkeley, Sch Publ Hlth, Ctr Childrens Environm Hlth Res, CHAMACOS, Berkeley, CA 94704 USA. [Fenster, Laura; Harnly, Martha E.] Calif Dept Publ Hlth, Div Environm & Occupat Dis Control, Richmond, CA USA. [Barr, Dana Boyd; Bravo, Roberto] Ctr Dis Control & Prevent, Natl Ctr Environm Hlth, Atlanta, GA USA. [McKone, Thomas E.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Castorina, R (reprint author), Univ Calif Berkeley, Sch Publ Hlth, Ctr Childrens Environm Hlth Res, CHAMACOS, 1995 Univ Ave,Suite 265, Berkeley, CA 94704 USA. EM rcastori@berkeley.edu RI Barr, Dana/E-6369-2011; Barr, Dana/E-2276-2013 FU National Institute of Environmental Health Sciences (NIEHS) [RO1 OH007400-04, PO1 ES009605]; U.S. Environmental Protection Agency (EPA) [RD 83171001] FX This publication was made possible by research supported by grants RO1 OH007400-04 and PO1 ES009605 from National Institute of Environmental Health Sciences (NIEHS) and grant RD 83171001 from the U.S. Environmental Protection Agency (EPA). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the U.S. EPA, NIEHS, or the Centers for Disease Control and Prevention. NR 40 TC 46 Z9 46 U1 0 U2 9 PU US DEPT HEALTH HUMAN SCIENCES PUBLIC HEALTH SCIENCE PI RES TRIANGLE PK PA NATL INST HEALTH, NATL INST ENVIRONMENTAL HEALTH SCIENCES, PO BOX 12233, RES TRIANGLE PK, NC 27709-2233 USA SN 0091-6765 EI 1552-9924 J9 ENVIRON HEALTH PERSP JI Environ. Health Perspect. PD JUN PY 2010 VL 118 IS 6 BP 856 EP 863 DI 10.1289/ehp.0901568 PG 8 WC Environmental Sciences; Public, Environmental & Occupational Health; Toxicology SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Toxicology GA 608NP UT WOS:000278591300032 PM 20129873 ER PT J AU Dale, VH AF Dale, Virginia H. TI Environmental Management Welcomes a New Face and Reinforces Its Focus on Science-Based Stewardship SO ENVIRONMENTAL MANAGEMENT LA English DT Editorial Material C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Dale, VH (reprint author), Oak Ridge Natl Lab, Bethel Valley Rd,Bldg 1505,Room 200,POB 2008, Oak Ridge, TN 37831 USA. EM dalevh@ornl.gov NR 0 TC 2 Z9 2 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0364-152X J9 ENVIRON MANAGE JI Environ. Manage. PD JUN PY 2010 VL 45 IS 6 BP 1243 EP 1243 DI 10.1007/s00267-010-9505-3 PG 1 WC Environmental Sciences SC Environmental Sciences & Ecology GA 610MK UT WOS:000278736800001 ER PT J AU Tsouris, C Aaron, DS Williams, KA AF Tsouris, Costas Aaron, Douglas S. Williams, Kent A. TI Is Carbon Capture and Storage Really Needed? SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Editorial Material ID COMPOSITE-PARTICLES; SEQUESTRATION; CO2 C1 [Tsouris, Costas] Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN USA. [Tsouris, Costas] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN USA. [Tsouris, Costas] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. [Aaron, Douglas S.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. RP Tsouris, C (reprint author), Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN USA. EM tsourisc@ornl.gov RI Tsouris, Costas/C-2544-2016 OI Tsouris, Costas/0000-0002-0522-1027 NR 15 TC 16 Z9 16 U1 1 U2 4 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 1 PY 2010 VL 44 IS 11 BP 4042 EP 4045 DI 10.1021/es903626u PG 4 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 600RA UT WOS:000278003500005 PM 20462200 ER PT J AU Kharecha, PA Kutscher, CF Hansen, JE Mazria, E AF Kharecha, Pushker A. Kutscher, Charles F. Hansen, James E. Mazria, Edward TI Options for Near-Term Phaseout of CO2 Emissions from Coal Use in the United States SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Review ID LIFE-CYCLE; ELECTRICITY-GENERATION; ENERGY EFFICIENCY; POWER-GENERATION; CARBON CAPTURE; NUCLEAR-POWER; BIOMASS; SYSTEMS; STORAGE; DESIGN AB The global climate problem becomes tractable if CO2 emissions from coal use are phased out rapidly and emissions from unconventional fossil fuels (e.g., oil shale and tar sands) are prohibited. This paper outlines technology options for phasing out coal emissions in the United States by similar to 2030. We focus on coal for physical and practical reasons and on the U.S. because it is most responsible for accumulated fossil fuel CO2 in the atmosphere today, specifically targeting electricity production, which is the primary use of coal. While we recognize that coal emissions must be phased out globally, we believe U.S. leadership is essential, A major challenge for reducing U.S. emissions is that coal provides the largest proportion of base load power, i.e., power satisfying minimum electricity demand. Because this demand is relatively constant and coal has a high carbon intensity, utility carbon emissions are largely due to coal. The current U.S. electric grid incorporates little renewable power, most of which is not base load power. However, this can readily be changed within the next 2-3 decades. Eliminating coal emissions also requires improved efficiency, a "smart grid", additional energy storage, and advanced nuclear power. Any further coal usage must be accompanied by carbon capture and storage (CCS). We suggest that near-term emphasis should be on efficiency measures and substitution of coal-fired power by renewables and third-generation nuclear plants, since these technologies have been successfully demonstrated at the relevant (commercial) scale. Beyond 2030, these measures can be supplemented by CCS at power plants and, as needed, successfully demonstrated fourth-generation reactors. We conclude that U.S. coal emissions could be phased out by 2030 using existing technologies or ones that could be commercially competitive with coal within about a decade. Elimination of fossil fuel subsidies and a substantial rising price on carbon emissions are the root requirements for a clean, emissions-free future. C1 [Kharecha, Pushker A.; Hansen, James E.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA. [Kharecha, Pushker A.; Hansen, James E.] Columbia Univ, Earth Inst, New York, NY 10025 USA. [Kutscher, Charles F.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Mazria, Edward] 2030 Inc Architecture 2030, Santa Fe, NM 87505 USA. RP Kharecha, PA (reprint author), NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA. EM pushker@giss.nasa.gov FU Lenfest Foundation FX This paper was motivated by, and is based in part on, a workshop on energy use and climate change mitigation held on Nov. 3, 2008 in Washington, DC. The workshop was funded by the Lenfest Foundation, and the presentations as well as participant biographies are archived at www.mediafire.com/nov3workshop. The views in this paper are solely those of the authors and do not necessarily represent the views of their institutions or the other workshop participants. We are grateful to all of the workshop participants and to Maggie Betancourt and Evelyn DeJesus-Quiles for helping to coordinate the logistics. Colleagues at NREL and Architecture 2030 were very helpful in providing figure data, references, and comments. We also thank Revis James, Anelia Milbrandt, Kathy O'Dell, Jeff Tester, Colin Williams, and Elsevier Publishing for granting permission to reproduce figures, and three anonymous reviewers for providing constructive comments on the draft manuscript. NR 92 TC 13 Z9 13 U1 1 U2 39 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD JUN 1 PY 2010 VL 44 IS 11 BP 4050 EP 4062 DI 10.1021/es903884a PG 13 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 600RA UT WOS:000278003500007 PM 20429611 ER PT J AU Niu, H Clark, C Zhou, J Adriaens, P AF Niu, Hao Clark, Corrie Zhou, Jiti Adriaens, Peter TI Scaling of Economic Benefits from Green Roof Implementation in Washington, DC SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID NITROGEN-DIOXIDE; ASSIMILATION; PERFORMANCE; MITIGATION; POLLUTION; PROGRAMS; SYSTEMS; MODELS; TAXA AB Green roof technology is recognized for mitigating stormwater runoff and energy consumption. Methods to overcome the cost gap between green roofs and conventional roofs were recently quantified by incorporating air quality benefits. This study investigates the impact of scaling on these benefits at the city-wide scale using Washington, DC as a test bed because of the proposed targets in the 20-20-20 vision (20 million ft(2) by 2020) articulated by Casey Trees, a nonprofit organization. Building-specific stormwater benefits were analyzed assuming two proposed policy scenarios for stormwater fees ranging from 35 to 50% reduction for green roof implementation. Heat flux calculations were used to estimate building-specific energy savings for commercial buildings. To assess benefits at the city scale, stormwater infrastructure savings were based on operational savings and size reduction due to reduced stormwater volume generation. Scaled energy infrastructure benefits were calculated using two size reductions methods for air conditioners. Avoided carbon dioxide, nitrogen oxide (NO(x)), and sulfur dioxide emissions were based on reductions in electricity and natural gas consumption. Lastly, experimental and fugacity-based estimates were used to quantify the NO(x) uptake by green roofs, which was translated to health benefits using U.S. Environmental Protection Agency models. The results of the net present value (NPV) analysis showed that stormwater infrastructure benefits totaled $1.04 million (M), while fee-based stormwater benefits were $0.22-0.32 M/y. Energy savings were $0.87 M/y, while air conditioner resizing benefits were estimated at $0.02 to $0.04 M/y and avoided emissions benefits (based on current emission trading values) were $0.09 M-0.41 M/y. Over the lifetime of the green roof (40 years), the NPV is about 30-40% less than that of conventional roofs (not including green roof maintenance costs). These considerable benefits, in concert with current and emerging policy frameworks, may facilitate future adoption of this technology. C1 [Niu, Hao; Zhou, Jiti; Adriaens, Peter] Univ Michigan, Dept Civil & Environm Engn, Coll Engn, Dearborn, MI 48128 USA. [Niu, Hao] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Dilian, Peoples R China. [Clark, Corrie] Argonne Natl Lab, Div Environm Sci, Washington, DC USA. RP Adriaens, P (reprint author), Univ Michigan, Dept Civil & Environm Engn, Coll Engn, Dearborn, MI 48128 USA. EM adriaens@umich.edu FU China Scholarship Council; DOE [DE-AC02-06CH11357] FX N.H. thanks the China Scholarship Council for support. Work at Argonne National Laboratory was supported by the DOE under contract DE-AC02-06CH11357. NR 57 TC 28 Z9 29 U1 7 U2 85 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD JUN 1 PY 2010 VL 44 IS 11 BP 4302 EP 4308 DI 10.1021/es902456x PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 600RA UT WOS:000278003500044 PM 20462260 ER PT J AU Krzakala, F Zdeborova, L AF Krzakala, F. Zdeborova, L. TI Following Gibbs states adiabatically -The energy landscape of mean-field glassy systems SO EPL LA English DT Article ID CONSTRAINT SATISFACTION PROBLEMS; SPIN-GLASSES; METASTABLE STATES; MODEL; TRANSITION; DYNAMICS; ENTROPY AB We introduce a generalization of the cavity, or Bethe-Peierls, method that allows to follow Gibbs states when an external parameter, e. g. the temperature, is adiabatically changed. This allows to obtain new quantitative results on the static and dynamic behavior of meanfield disordered systems such as models of glassy and amorphous materials or random constraint satisfaction problems. As a first application, we discuss the residual energy after a very slow annealing, the behavior of out-of-equilibrium states, and demonstrate the presence of temperature chaos in equilibrium. We also explore the energy landscape, and identify a new transition from a computationally easier canyons-dominated region to a harder valleys-dominated one. Copyright (c) EPLA, 2010 C1 [Krzakala, F.] CNRS, F-75000 Paris, France. [Krzakala, F.] ESPCI ParisTech, UMR Gulliver 7083, F-75000 Paris, France. [Krzakala, F.; Zdeborova, L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Krzakala, F.; Zdeborova, L.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Krzakala, F (reprint author), CNRS, 10 Rue Vauquelin, F-75000 Paris, France. RI Krzakala, Florent/D-8846-2012; Zdeborova, Lenka/B-9999-2014 NR 38 TC 15 Z9 15 U1 1 U2 3 PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY PI MULHOUSE PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE SN 0295-5075 J9 EPL-EUROPHYS LETT JI EPL PD JUN PY 2010 VL 90 IS 6 AR 66002 DI 10.1209/0295-5075/90/66002 PG 6 WC Physics, Multidisciplinary SC Physics GA 662ZN UT WOS:000282852900015 ER PT J AU Barenblatt, GI Bertsch, M Giacomelli, L AF Barenblatt, G. I. Bertsch, M. Giacomelli, L. TI Steady and quasi-steady thin viscous flows near the edge of a solid surface SO EUROPEAN JOURNAL OF APPLIED MATHEMATICS LA English DT Article ID FILM EQUATION; LIQUID-FILMS; STATES; TOPOGRAPHY; STABILITY; DYNAMICS; DROPLET; MOTION; LINE AB A new approach is proposed for the description of thin viscous flows near the edges of a solid surface. For a steady flow, the lubrication approximation and the no-slip condition are assumed to be valid on most of the surface, except for relatively small neighbourhoods of the edges, where a universality principle is postulated: the behaviour of the liquid in these regions is universally determined by flux, external conditions and material properties. The resulting mathematical model is formulated as an ordinary differential equation involving the height of the liquid film and the flux as unknowns, and analytical results are outlined. The form of the universal functions which describe the behaviour in the edge regions is also discussed, obtaining conditions of compatibility with lubrication theory for small fluxes. Finally, an ordinary differential equation is introduced for the description of intermediate asymptotic profiles of a liquid film which flows off a bounded solid surface. C1 [Barenblatt, G. I.] Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. [Barenblatt, G. I.] Univ Calif Berkeley, EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Bertsch, M.] Univ Roma Tor Vergata, Dipartimento Matemat, I-00133 Rome, Italy. [Bertsch, M.] CNR, Ist Applicaz Calcolo M Picone, I-00185 Rome, Italy. [Giacomelli, L.] Univ Roma La Sapienza, Dipartimento Me Mo Mat, I-00161 Rome, Italy. RP Barenblatt, GI (reprint author), Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. EM giacomelli@dmmm.uniroma1.it RI Giacomelli, Lorenzo/E-7084-2011 OI Giacomelli, Lorenzo/0000-0002-2470-1050 FU Office of Science, Computational and Technology Research, U.S. Department of Energy [DE-AC03-76SF00098]; CNR [96.03843.PS01]; EC [FMRX-CT98-0201, HPRN-CT-2002-00274] FX This work was supported by the Director, Office of Science, Computational and Technology Research, U.S. Department of Energy under Contract No. DE-AC03-76SF00098; the CNR Special Project Metodi matematici in fluidodinamica e dinamica molecolare (96.03843.PS01); EC through the TMR-Programme Nonlinear Parabolic Equations (FMRX-CT98-0201) and the RTN-Programme Front-Singularities (HPRN-CT-2002-00274). M. Bertsch and L. Giacomelli gratefully acknowledge the warm hospitality of the E.O. Lawrence Berkeley National Laboratory in Berkeley, and L. Giacomelli that of the Max Plank Institut for Mathematics in the Sciences in Leipzig, the Matematische Institut in Leipzig and the Institut fur Angewandte Mathematik in Bonn. NR 31 TC 0 Z9 0 U1 0 U2 2 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0956-7925 J9 EUR J APPL MATH JI Eur. J. Appl. Math. PD JUN PY 2010 VL 21 BP 253 EP 270 DI 10.1017/S0956792510000124 PN 3 PG 18 WC Mathematics, Applied SC Mathematics GA 599UT UT WOS:000277939900003 ER PT J AU Szajna-Fuller, E Bakac, A AF Szajna-Fuller, Ewa Bakac, Andreja TI Catalytic Generation of Hydrogen with Titanium Citrate and a Macrocyclic Cobalt Complex SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY LA English DT Article DE Hydrogen; Cobalt; Titanium; Macrocycles; Kinetics; Hydrides ID VISIBLE-LIGHT; STRUCTURAL-CHARACTERIZATION; COBALOXIME CATALYSTS; WATER; EVOLUTION; REDUCTION; MECHANISM; SYSTEM; OXIDATION; KINETICS AB Hydrogen evolution from acidic aqueous solutions of Ti(III) citrate is strongly catalyzed by Co(dmgBF(2))(2). The reaction generates an intermediate with maximum absorbance at 770 nm. The slow disappearance of this intermediate takes place simultaneously with the generation of H(2) in a process that was most efficient at pH 1.6 (turnover number 53). The loss of the catalytic activity is caused by the loss of the macrocyclic ligand and formation of Co(aq)(2+). Control experiments implicate Co(III) as the most likely oxidation state responsible for catalyst destruction, and thus provide indirect evidence for the involvement of Corn in the catalytic cycle. Taken together, the data suggest that hydrogen generation takes place at least in part by the H(+)/HCo(III)(dmgBF(2))(2) route. In citrate-containing solutions at 7 <= pH <= 8, the protonation of Co(I)(dmgBF(2))(2)(-) to yield HCo(III)(dmgBF(2))(2) has a rate constant k(H) = 1.4 x 10(6) M(-1) s(-1). This reaction is about ten times slower in the absence of citrate. C1 [Szajna-Fuller, Ewa; Bakac, Andreja] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Bakac, A (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM bakac@ameslab.gov FU U. S. Department of Energy [DE-AC02-07CH11358] FX This manuscript has been authored with the U. S. Department of Energy under Contract No. DE-AC02-07CH11358. NR 30 TC 27 Z9 27 U1 3 U2 18 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 1434-1948 J9 EUR J INORG CHEM JI Eur. J. Inorg. Chem. PD JUN PY 2010 IS 17 BP 2488 EP 2494 DI 10.1002/ejic.200901176 PG 7 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 614ST UT WOS:000279080700006 ER PT J AU Knight, KS Henderson, CMB Clark, SM AF Knight, Kevin S. Henderson, C. Michael B. Clark, Simon M. TI Structural variations in the wesselsite-effenbergerite (Sr1-xBaxCuSi4O10) solid solution SO EUROPEAN JOURNAL OF MINERALOGY LA English DT Article DE wesselsite; effenbergerite; gillespite; crystal structure; powder neutron diffraction; solid solution ID KALAHARI MANGANESE FIELD; CRYSTAL-STRUCTURE; SOUTH-AFRICA; GILLESPITE; SILICATES; BAFESI4O10; REFINEMENT; BLUE AB The crystal structures of eight tetragonal, gillespite-structured phases in the effenbergerite(BaCuSi4O10)-wesselsite (SrCuSi4O10) solid solution (Sr1-xBaxCuSi4O10, where x is the mol fraction of the Ba end-member), have been refined from powder, neutron time-of-flight, diffraction data. The accommodation of the larger, more electropositive Ba2+ cation within the crystal structure of SrCuSi4O10 is achieved by increasing the magnitude of the rotation of the square-planar CuO4 group about the c axis, coupled with an anti-phase rotation, and concomitant tilting, of the Si4O10 polyhedral unit. To an excellent approximation, these structural changes are equivalent to a rigid sphere substitution, the radius of which is given by the compositionally averaged ionic radii of Sr2+ and Ba2+. The compositional-dependence of the lattice parameter c is significantly larger than that for a at low values of x, and is particularly well parameterised in terms of the variations of the calculated ionic radius of the alkaline-earth site and the observed tilt of the SiO4 tetrahedron. The lattice parameter a exhibits a negative deviation from Vegard's rule resulting from the more complex, coupled structural response to the change in the effective ionic radius at the Sr/Ba site. C1 [Knight, Kevin S.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. [Knight, Kevin S.] Nat Hist Museum, Dept Mineral, London SW7 5BD, England. [Henderson, C. Michael B.; Clark, Simon M.] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England. [Henderson, C. Michael B.] Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England. [Clark, Simon M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Knight, KS (reprint author), Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. EM kevin.knight@stfc.ac.uk RI Clark, Simon/B-2041-2013 OI Clark, Simon/0000-0002-7488-3438 NR 24 TC 6 Z9 6 U1 2 U2 23 PU E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG PI STUTTGART PA NAEGELE U OBERMILLER, SCIENCE PUBLISHERS, JOHANNESSTRASSE 3A, D 70176 STUTTGART, GERMANY SN 0935-1221 EI 1617-4011 J9 EUR J MINERAL JI Eur. J. Mineral. PD JUN PY 2010 VL 22 IS 3 BP 411 EP 423 DI 10.1127/0935-1221/2010/0022-2025 PG 13 WC Mineralogy SC Mineralogy GA 602VC UT WOS:000278166000008 ER PT J AU Weydert, C Frixione, S Herquet, M Klasen, M Laenen, E Plehn, T Stavenga, G White, CD AF Weydert, C. Frixione, S. Herquet, M. Klasen, M. Laenen, E. Plehn, T. Stavenga, G. White, C. D. TI Charged Higgs boson production in association with a top quark in MC@NLO SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID JET CROSS-SECTIONS; LEADING ORDER; HADRON COLLIDERS; PARTON DISTRIBUTIONS; SYMMETRY-BREAKING; NEUTRAL-CURRENT; GLUON FUSION; QCD; PARTICLES; LHC AB We discuss the calculation of charged Higgs boson production in association with a top quark in the MC@NLO framework for combining NLO matrix elements with a parton shower. The process is defined in a model-independent manner for wide applicability, and can be used if the charged Higgs boson mass is either greater or less than the mass of the top quark. For the latter mass region, care is needed in defining the charged Higgs production mode due to interference with top pair production. We give a suitable definition applicable in an NLO (plus parton shower) context, and we present example results for the LHC. C1 [Weydert, C.; Klasen, M.] UJF, CNRS, IN2P3, Lab Phys Subatom & Cosmol,INPG, F-38026 Grenoble, France. [Frixione, S.] CERN, TH Unit, PH Dept, CH-1211 Geneva 23, Switzerland. [Frixione, S.] Ecole Polytech Fed Lausanne, ITPP, CH-1015 Lausanne, Switzerland. [Herquet, M.; Laenen, E.] Nikhef Theory Grp, NL-1098 XG Amsterdam, Netherlands. [Laenen, E.] Univ Amsterdam, Inst Theoret Phys, NL-1018 XE Amsterdam, Netherlands. [Laenen, E.; Stavenga, G.] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands. [Plehn, T.] Univ Heidelberg, Inst Theoret Phys, D-6900 Heidelberg, Germany. [Stavenga, G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [White, C. D.] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England. RP Weydert, C (reprint author), UJF, CNRS, IN2P3, Lab Phys Subatom & Cosmol,INPG, 53 Ave Martyrs, F-38026 Grenoble, France. EM weydert@lpsc.in2p3.fr; Stefano.Frixione@cern.ch; mherquet@nikhef.nl; klasen@lpsc.in2p3.fr; Eric.Laenen@nikhef.nl; Plehn@uni-heidelberg.de; stavenga@fnal.gov; c.d.white@durham.ac.uk FU ANR [ANR-06-JCJC-0038]; Theory-LHC-France initiative of CNRS [IN2P3]; the Foundation for Fundamental Research of Matter (FOM); National Organization for Scientific Research (NWO); Marie Curie grant "TOP@LHC"; STFC FX MK and CW thank Karol Kovarik for his collaboration during the initial stages of this project. Their work is supported by the grant ANR-06-JCJC-0038 and the Theory-LHC-France initiative of CNRS/IN2P3. This research has been supported by the Foundation for Fundamental Research of Matter (FOM) as part of the program TPP (Theoretical Particle Physics in the era of the LHC, FP 104) and the National Organization for Scientific Research (NWO). CDW was supported by the Marie Curie grant "TOP@LHC" as well as by the STFC postdoctoral fellowship "Collider Physics at the LHC". He thanks Peter Richardson for help with HERWIG, and we are also grateful to Fabio Maltoni for discussions relating to the renormalization of the Yukawa coupling. NR 58 TC 26 Z9 26 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6044 J9 EUR PHYS J C JI Eur. Phys. J. C PD JUN PY 2010 VL 67 IS 3-4 BP 617 EP 636 DI 10.1140/epjc/s10052-010-1320-8 PG 20 WC Physics, Particles & Fields SC Physics GA 608ZT UT WOS:000278625200025 ER PT J AU Masoller, C Brener, I AF Masoller, C. Brener, I. TI Introduction to the Topical Issue on Laser Dynamics and Nonlinear Photonics SO EUROPEAN PHYSICAL JOURNAL D LA English DT Editorial Material ID FEEDBACK; SYSTEMS C1 [Masoller, C.] Univ Politecn Cataluna, Dept Fis & Engn Nucl, Barcelona 08222, Spain. [Brener, I.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Brener, I.] Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA. RP Masoller, C (reprint author), Univ Politecn Cataluna, Dept Fis & Engn Nucl, Colom 11, Barcelona 08222, Spain. RI Brener, Igal/G-1070-2010; Masoller, Cristina/M-3696-2014 OI Brener, Igal/0000-0002-2139-5182; Masoller, Cristina/0000-0003-0768-2019 NR 46 TC 1 Z9 1 U1 0 U2 6 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6060 J9 EUR PHYS J D JI Eur. Phys. J. D PD JUN PY 2010 VL 58 IS 2 BP 153 EP 159 DI 10.1140/epjd/e2010-00127-3 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 604PK UT WOS:000278290800001 ER PT J AU O'Hara, J Azad, AK Taylor, AJ AF O'Hara, J. Azad, A. K. Taylor, A. J. TI A method to determine effective metamaterial properties based on stratified metafilms SO EUROPEAN PHYSICAL JOURNAL D LA English DT Article AB Metamaterials' properties may be quantified through the assignment of bulk material parameters such as magnetic permeability and electric permittivity. These assignments rely on the assumption that metamaterials are effective media, in this context meaning that their electromagnetic properties are independent of the sample size. This assumption is not always valid, particularly for metafilms, the surface equivalents of metamaterials. However, metamaterials comprised of numerous metafilm and dielectric layers can be uniquely characterized in the effective medium approximation when all aspects of the metamaterial are properly integrated. We present a simple model based on stratified systems to illustrate this fact. The model further assists in the interpretation of novel metamaterial behaviors and offers a rapid and accurate method to determine the functionality of bulk metamaterial-based devices. C1 [O'Hara, J.; Azad, A. K.; Taylor, A. J.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP O'Hara, J (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. EM johara@lanl.gov OI Azad, Abul/0000-0002-7784-7432 FU Los Alamos National Laboratory LDRD; Center for Integrated Nanotechnologies, a US Department of Energy, Office of Basic Sciences Nanoscale Science Research Center [DE-AC52-06NA25396] FX We gratefully acknowledge support from the Los Alamos National Laboratory LDRD program. This work was performed at the Center for Integrated Nanotechnologies, a US Department of Energy, Office of Basic Sciences Nanoscale Science Research Center operated jointly by Los Alamos and Sandia National Laboratories. Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by Los Alamos Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under contract DE-AC52-06NA25396. NR 12 TC 5 Z9 5 U1 0 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6060 J9 EUR PHYS J D JI Eur. Phys. J. D PD JUN PY 2010 VL 58 IS 2 BP 243 EP 247 DI 10.1140/epjd/e2010-00120-x PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 604PK UT WOS:000278290800013 ER PT J AU Wehner, M AF Wehner, Michael TI Sources of uncertainty in the extreme value statistics of climate data SO EXTREMES LA English DT Article DE Extreme temperature; Return value; Uncertainty; Climate models ID SIMULATIONS; TEMPERATURE; ENSEMBLE; GCM AB We investigate three sources of uncertainty in the calculation of extreme value statistics for observed and modeled climate data. Inter-model differences in formulation, unforced internal variability and choice of statistical model all contribute to uncertainty. Using fits to the GEV distribution to obtain 20 year return values, we quantify these uncertainties for the annual maximum daily mean surface air temperatures of pre-industrial control runs from 15 climate models in the CMIP3 dataset. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wehner, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,MS 50F, Berkeley, CA 94720 USA. EM mfwehner@lbl.gov NR 22 TC 14 Z9 14 U1 0 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1386-1999 J9 EXTREMES JI Extremes PD JUN PY 2010 VL 13 IS 2 BP 205 EP 217 DI 10.1007/s10687-010-0105-7 PG 13 WC Mathematics, Interdisciplinary Applications; Statistics & Probability SC Mathematics GA 617PA UT WOS:000279291700006 ER PT J AU Kristiansson, E Hugenholtz, P Dalevi, D AF Kristiansson, E. Hugenholtz, P. Dalevi, D. TI ShotgunFunctionalizeR - an R-package for functional comparison of metagenomes SO FEBS JOURNAL LA English DT Meeting Abstract CT 35th Congress of the Federation-of-European-Biochemical-Societies CY JUN 26-JUL 01, 2010 CL Gothenburg, SWEDEN C1 [Kristiansson, E.] Univ Gothenburg, Dept Neurosci & Physiol, Gothenburg, Sweden. [Hugenholtz, P.] Joint Genome Inst, Microbial Ecol Program, Walnut Creek, CA USA. [Dalevi, D.] Chalmers, Dept Comp Sci & Engn, S-41296 Gothenburg, Sweden. RI Hugenholtz, Philip/G-9608-2011 NR 0 TC 0 Z9 0 U1 2 U2 4 PU WILEY-BLACKWELL PUBLISHING, INC PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1742-464X J9 FEBS J JI FEBS J. PD JUN PY 2010 VL 277 SU 1 BP 106 EP 106 PG 1 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 608EI UT WOS:000278565100377 ER PT J AU Ray, AE Connon, SA Sheridan, PP Gilbreath, J Shields, M Newby, DT Fujita, Y Magnuson, TS AF Ray, Allison E. Connon, Stephanie A. Sheridan, Peter P. Gilbreath, Jeremy Shields, Malcolm Newby, Deborah T. Fujita, Yoshiko Magnuson, Timothy S. TI Intragenomic heterogeneity of the 16S rRNA gene in strain UFO1 caused by a 100-bp insertion in helix 6 SO FEMS MICROBIOLOGY ECOLOGY LA English DT Article DE 16S rRNA genes; gene inserts; intragenomic heterogeneity; intervening sequence (IVS); helix 6 ID NOV-SP NOV.; HALOARCULA-MARISMORTUI; INTERVENING SEQUENCES; COPY NUMBER; BACTERIAL; OPERONS; SUBSURFACE; DIVERSITY; ENUMERATION; DIVERGENCE AB Two different versions of the 16S rRNA gene, one of which contained an unusual 100-bp insertion in helix 6, were detected in isolate UFO1 acquired from the Oak Ridge Integrated Field-Research Challenge (ORIFRC) site in Tennessee. rRNA was extracted from UFO1 and analyzed by reverse transcriptase-quantitative PCR with insert- and non-insert-specific primers; only the noninsert 16S rRNA gene sequence was detected. Similarly, PCR-based screening of a cDNA library (190 clones) constructed from reverse-transcribed rRNA from UFO1 did not detect any clones containing the 100-bp insert. Examination of cDNA with primers specific to the insert-bearing 16S rRNA gene, but downstream of the insert, suggests that the insert was excised from rRNA. Inspection of other 16S rRNA genes in the GenBank database revealed that a homologous insert sequence, also found in helix 6, has been reported in other environmental clones, including those acquired from ORIFRC enrichments. These findings demonstrate the existence of widely divergent copies of the 16S rRNA gene within the same organism, which may confound 16S rRNA gene-based methods of estimating microbial diversity in environmental samples. C1 [Ray, Allison E.; Newby, Deborah T.; Fujita, Yoshiko] Idaho Natl Lab, Biol Syst Dept, Idaho Falls, ID 83415 USA. [Ray, Allison E.; Connon, Stephanie A.; Sheridan, Peter P.; Gilbreath, Jeremy; Shields, Malcolm; Magnuson, Timothy S.] Idaho State Univ, Dept Biol Sci, Pocatello, ID 83209 USA. [Connon, Stephanie A.] CALTECH, Jet Prop Lab, Pasadena, CA USA. RP Ray, AE (reprint author), Idaho Natl Lab, Biol Syst Dept, POB 1625, Idaho Falls, ID 83415 USA. EM alikona.ray@gmail.com RI Connon, Stephanie/K-1959-2012; Fujita, Yoshiko/S-2007-2016 OI Fujita, Yoshiko/0000-0002-4472-4102 FU Idaho National Laboratory; Inland Northwest Research Alliance [ISU-004]; US Department of Energy [DE-FG02-04ER63626] FX We would like to thank Hope Lee, Aren Eddingsaas, James Henriksen, Amber Miller, Joni Barnes, Lynn Wendt, and Cindy Breckenridge for helpful advice and technical assistance. We thank Erin O'Leary-Jepson and Michelle Andrews of the Idaho State University Molecular Research Core Facility for 16S rRNA gene sequencing. We also extend our thanks to David Reed and Frank Roberto, of the INL for reviewing this manuscript and providing helpful comments. This work was supported by the Idaho National Laboratory, the Inland Northwest Research Alliance (Grant Number ISU-004 to T. S. M., and Graduate Fellowship to A. E. R.), and the US Department of Energy (Grant Number DE-FG02-04ER63626 to T. S. M.). NR 51 TC 7 Z9 7 U1 0 U2 8 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0168-6496 J9 FEMS MICROBIOL ECOL JI FEMS Microbiol. Ecol. PD JUN PY 2010 VL 72 IS 3 BP 343 EP 353 DI 10.1111/j.1574-6941.2010.00868.x PG 11 WC Microbiology SC Microbiology GA 591RR UT WOS:000277321300003 PM 20557571 ER PT J AU Li, SL Yao, DX Qiu, YM Kang, HJ Carlson, EW Hu, JP Chen, GF Wang, NL Dai, PC AF Li, Shi-liang Yao, Dao-xin Qiu, Yi-ming Kang, Hye Jung Carlson, E. W. Hu, Jiang-ping Chen, Gen-fu Wang, Nan-lin Dai, Peng-cheng TI Low-energy Ce spin excitations in CeFeAsO and CeFeAsO0.84F0.16 SO FRONTIERS OF PHYSICS IN CHINA LA English DT Article DE iron pnictides; rare earth spin waves; crystal field ID LAYERED SUPERCONDUCTOR; WAVES; PR; SM AB We use inelastic neutron scattering to study the low-energy spin excitations of polycrystalline samples of nonsuperconducting CeFeAsO and superconducting CeFeAsO0.84F0.16. Two sharp dispersionless modes are found at 0.85 and 1.16 meV in CeFeAsO below the Ce antiferromagnetic (AF) ordering temperature of T-N(Ce) similar to 4 K. On warming to above T-N(Ce) similar to 4 K, these two modes become one broad dispersionless mode that disappears just above the Fe ordering temperature T-N(Fe) similar to 140 K. For superconducting CeFeAsO0.84F0.16, where Fe static AF order is suppressed, we find a weakly dispersive mode center at 0.4 meV that may arise from short-range Ce-Ce exchange interactions. Using a Heisenberg model, we simulate powder-averaged Ce spin wave excitations. Our results show that we need both Ce spin wave and crystal electric field excitations to account for the whole spectra of low-energy spin excitations. C1 [Li, Shi-liang; Wang, Nan-lin; Dai, Peng-cheng] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. [Li, Shi-liang; Dai, Peng-cheng] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Yao, Dao-xin; Carlson, E. W.; Hu, Jiang-ping] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Qiu, Yi-ming] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA. [Qiu, Yi-ming] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA. [Kang, Hye Jung] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA. [Chen, Gen-fu] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China. [Dai, Peng-cheng] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. RP Li, SL (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. EM laoliang@gmail.com; daip@ornl.gov RI Li, Shiliang/B-9379-2009; Dai, Pengcheng /C-9171-2012; 石, 源/D-5929-2012; ruc, phy/E-4170-2012; Hu, Jiangping/A-9154-2010; hu, jiangping /C-3320-2014 OI Dai, Pengcheng /0000-0002-6088-3170; Hu, Jiangping/0000-0003-4480-1734; FU US Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202]; Chinese Academy of Sciences; National Science Foundation [DMR-0454672] FX This work was supported by the US Department of Energy, Division of Materials Science, Basic Energy Sciences, through DOE DE-FG02-05ER46202. The work at the Institute of Physics, Chinese Academy of Sciences, was supported by the Chinese Academy of Sciences. Work at NCNR was in part supported by the National Science Foundation under agreement DMR-0454672. NR 19 TC 3 Z9 3 U1 0 U2 15 PU HIGHER EDUCATION PRESS PI BEIJING PA SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA SN 1673-3487 EI 1673-3606 J9 FRONT PHYS CHINA JI Front. Phys. China PD JUN PY 2010 VL 5 IS 2 BP 161 EP 165 DI 10.1007/s11467-009-0077-8 PG 5 WC Physics, Multidisciplinary SC Physics GA 632HX UT WOS:000280414400005 ER PT J AU Ruan, LJ AF Ruan, Li-juan TI Relativistic Heavy-Ion Collider (RHIC) physics overview SO FRONTIERS OF PHYSICS IN CHINA LA English DT Review DE Quark Gluon Plasma; jet quenching; partonic collectivity; number of constituent quark scaling; baryon enhancement; color screening effect ID PLUS AU COLLISIONS; TRANSVERSE-MOMENTUM DISTRIBUTIONS; NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON PLASMA; RESISTIVE PLATE CHAMBERS; QCD PHASE-DIAGRAM; ROOT-S-NN=200 GEV; QUANTUM CHROMODYNAMICS; FINITE-TEMPERATURE; ROOT-S(NN)=200 GEV AB The results from data taken during the last several years at the Relativistic Heavy-Ion Collider (RHIC) will be reviewed in the paper. Several selected topics that further our understanding of constituent quark scaling, jet quenching and color screening effect of heavy quarkonia in the hot dense medium will be presented. Detector upgrades will further probe the properties of Quark Gluon Plasma. Future measurements with upgraded detectors will be presented. The discovery perspectives from future measurements will also be discussed. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Ruan, LJ (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM ruanlj@rcf.rhic.bnl.gov FU U.S. Department of Energy [DE-AC02-98CH10886]; Battelle Memorial Institute; Stony Brook University FX The author would like to thank H. Z. Huang, B. Mohanty, Z. Tang, Y. Xu and Z. Xu for many valuable discussions. The author would also like to thank G. Eppley for proof reading. This work was supported in part by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. L. J. Ruan is supported in part by the Battelle Memorial Institute and Stony Brook University in the form of the Gertrude and Maurice Goldhaber Distinguished Fellowship. NR 156 TC 1 Z9 1 U1 1 U2 4 PU HIGHER EDUCATION PRESS PI BEIJING PA NO 4 DEWAI DAJIE, BEIJING 100120, PEOPLES R CHINA SN 1673-3487 EI 1673-3606 J9 FRONT PHYS CHINA JI Front. Phys. China PD JUN PY 2010 VL 5 IS 2 BP 205 EP 214 DI 10.1007/s11467-010-0014-x PG 10 WC Physics, Multidisciplinary SC Physics GA 632HX UT WOS:000280414400012 ER PT J AU Shekhawat, D Berry, DA Pennline, HW Granite, EJ Spivey, JJ AF Shekhawat, Dushyant Berry, David A. Pennline, Henry W. Granite, Evan J. Spivey, James J. TI Advanced Fossil Energy Utilization Preface SO FUEL LA English DT Editorial Material C1 [Shekhawat, Dushyant; Berry, David A.] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Pennline, Henry W.; Granite, Evan J.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Spivey, James J.] Louisiana State Univ, Gordon A & Mary Cain Dept Chem Engn, Baton Rouge, LA 70803 USA. RP Shekhawat, D (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA. EM Dushyant.shekhawat@netl.doe.gov; David.berry@netl.doe.gov; Pennline@netl.doe.gov; Granite@netl.doe.gov; jjspivey@lsu.edu NR 0 TC 0 Z9 0 U1 1 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-2361 J9 FUEL JI Fuel PD JUN PY 2010 VL 89 IS 6 BP 1185 EP 1186 DI 10.1016/j.fuel.2009.12.022 PG 2 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 575XR UT WOS:000276105300001 ER PT J AU Smith, MW Berry, DA Shekhawat, D Haynes, DJ Spivey, JJ AF Smith, Mark W. Berry, David A. Shekhawat, Dushyant Haynes, Daniel J. Spivey, James J. TI Partial oxidation of liquid hydrocarbons in the presence of oxygen-conducting supports: Effect of catalyst layer deposition SO FUEL LA English DT Article; Proceedings Paper CT Symposium on Advanced Fossil Energy Utilization CY APR 26-30, 2009 CL Tampa, FL SP Fuels & Petrochem Div Res & New Technol Comm DE Diesel reforming; Hexaaluminate; Oxygen-conducting support; Catalyst deposition; Carbon formation ID N-TETRADECANE; PEROVSKITE CATALYSTS; HEXAALUMINATE CATALYSTS; SURFACE-AREA; METHANE; COMBUSTION; CO2; SULFUR; METAL; CH4 AB Ni-substituted barium hexaaluminate (BNHA) catalysts supported onto gadolinium-doped ceria (GDC), an oxygen-conductor, were prepared using two different methods: (1) conventional incipient wetness impregnation (IWI), in which a non-porous GDC support was impregnated in the conventional manner with aqueous precursors, then dried and calcined to form a supported hexaaluminate, and (2) solid-state mixing (SSM), in which solid hexaaluminate and GDC particles were mechanically ground together and thermally treated to produce a final catalyst. These catalysts were compared to bulk, unsupported BNHA; 3 wt% Ni/alumina; and 3 wt% Ni/GDC (the latter two prepared by conventional impregnation) for the partial oxidation (POX) of n-tetradecane. The reaction studies included examining the effect of 50 ppm S as dibenzothiophene (DBT) and 5 wt% 1-methylnaphthalene (MN) on the product yield under POX conditions. Temperature programmed oxidation (TPO) was used to characterize carbon formation in the reactor. The materials were characterized by BET, ICP-OES, XRD, and SEM/EDS prior to the reaction tests. Characterization of the two GDC-supported BNHA catalysts prior to the reaction studies indicated no significant differences in the bulk composition, surface area, and crystal structure. However, SEM images showed a larger amount of exposed GDC support surface area for the material prepared by IWI. Both of the GDC-supported BNHA materials demonstrated greatly reduced deactivation, with significantly reduced carbon formation compared to bulk BNHA. This was attributed to the oxygen-conducting property of the GDC, which reduced the rate of deactivation of the reaction sites by DBT and MN. The material prepared by IWI demonstrated more stable hydrogen and carbon monoxide yield than the material prepared by SSM. Although both catalysts deactivated in the presence of DBT and MN, the activity of the catalyst prepared by IWI recovered activity more quickly after the contaminants were removed. This material also maintained >50% of its initial hydrogen yield for more than 4 h after exposure to DBT and MN, while the hydrogen for the material prepared by SSM dropped to this same level within 2 h. Incipient wetness impregnation appears to provide a higher degree of interaction between the oxygen-conducting GDC support and the hexaaluminate, resulting in less rapid deactivation, which appears to be due primarily to carbon deposition. (C) 2009 Elsevier Ltd. All rights reserved. C1 [Smith, Mark W.] PLLC, REM Engn Serv, Morgantown, WV 26505 USA. [Smith, Mark W.; Berry, David A.; Shekhawat, Dushyant; Haynes, Daniel J.; Spivey, James J.] Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Haynes, Daniel J.] Parsons, South Pk, PA 15129 USA. [Spivey, James J.] Louisiana State Univ, Baton Rouge, LA 70803 USA. RP Smith, MW (reprint author), PLLC, REM Engn Serv, Morgantown, WV 26505 USA. EM mark.smith@re.netl.doe.gov NR 31 TC 12 Z9 12 U1 1 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-2361 J9 FUEL JI Fuel PD JUN PY 2010 VL 89 IS 6 BP 1193 EP 1201 DI 10.1016/j.fuel.2009.12.017 PG 9 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 575XR UT WOS:000276105300003 ER PT J AU Stevens, RW Shamsi, A Carpenter, S Siriwardane, R AF Stevens, Robert W., Jr. Shamsi, Abolghasem Carpenter, Stephen Siriwardane, Ranjani TI Sorption-enhanced water gas shift reaction by sodium-promoted calcium oxides SO FUEL LA English DT Article; Proceedings Paper CT Symposium on Advanced Fossil Energy Utilization CY APR 26-30, 2009 CL Tampa, FL SP Fuels & Petrochem Div Res & New Technol Comm DE Water gas shift; WGS; Sorbent-enhanced; Sorption-enhanced; CO(2) capture ID HYDROGEN-PRODUCTION; CARBON-DIOXIDE; CO2 CAPTURE; METHANE; SORBENTS; CAO; GASIFICATION; HYDROTALCITE; TEMPERATURES; BIOMASS AB The water gas shift reaction was evaluated in the presence of novel carbon dioxide (CO(2)) capture sorbents, both alone and with catalyst, at moderate reaction conditions (i.e., 300-600 degrees C and 1-11.2 atm). Experimental results showed significant improvements to carbon monoxide (CO) conversions and production of hydrogen (H(2)) when CO(2) sorbents are incorporated into the water gas shift reaction. Results suggested that the performance of the sorbent is linked to the presence of a Ca(OH)(2) phase within the sorbent. Promoting calcium oxide (CaO) sorbents with sodium hydroxide (NaOH) as well as pre-treating the CaO sorbent with steam appeared to lead to formation of Ca(OH)(2), which improved CO(2) sorption capacity and WGS performance. Results suggest that an optimum amount of NaOH exists as too much leads to a lower capture capacity of the resultant sorbent. During capture, the NaOH-promoted sorbents displayed a high capture efficiency (nearly 100%) at temperatures of 300-600 degrees C. Results also suggest that the CaO sorbents possess catalytic properties which may augment the WGS reactivity even post-breakthrough. Furthermore, promotion of CaO by NaOH significantly reduces the regeneration temperature of the former. (C) 2009 Published by Elsevier Ltd. C1 [Stevens, Robert W., Jr.; Shamsi, Abolghasem; Carpenter, Stephen; Siriwardane, Ranjani] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Carpenter, Stephen] Parsons, South Pk, PA 15129 USA. RP Stevens, RW (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA. EM Robert.Stevens@netl.doe.gov OI Stevens, Robert/0000-0002-0864-6768 NR 24 TC 25 Z9 25 U1 0 U2 18 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-2361 J9 FUEL JI Fuel PD JUN PY 2010 VL 89 IS 6 BP 1280 EP 1286 DI 10.1016/j.fuel.2009.11.035 PG 7 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 575XR UT WOS:000276105300013 ER PT J AU Pennline, HW Granite, EJ Luebke, DR Kitchin, JR Landon, J Weiland, LM AF Pennline, Henry W. Granite, Evan J. Luebke, David R. Kitchin, John R. Landon, James Weiland, Lisa M. TI Separation of CO2 from flue gas using electrochemical cells SO FUEL LA English DT Article; Proceedings Paper CT Symposium on Advanced Fossil Energy Utilization CY APR 26-30, 2009 CL Tampa, FL SP Fuels & Petrochem Div Res & New Technol Comm DE Carbon dioxide sequestration; Carbon capture and separation; Electrochemical separation ID CARBON-DIOXIDE; REMOVAL; CAPTURE AB Past research with high temperature molten carbonate electrochemical cells has shown that carbon dioxide can be separated from flue gas streams produced by pulverized coal combustion for power generation. However, the presence of trace contaminants, i.e., sulfur dioxide and nitric oxides, will impact the electrolyte within the cell. If a lower temperature cell could be devised that would utilize the benefits of commercially-available, upstream desulfurization and denitrification in the power plant, then this CO2 separation technique can approach more viability in the carbon sequestration area. Recent work has led to the assembly and successful operation of a low temperature electrochemical cell. In the proof-of-concept testing with this cell, an anion exchange membrane was sandwiched between gas-diffusion electrodes consisting of nickel-based anode electrocatalysts on carbon paper. When a potential was applied across the cell and a mixture of oxygen and carbon dioxide was flowed over the wetted electrolyte on the cathode side, a stream of CO2 to O-2 was produced on the anode side, suggesting that carbonate/bicarbonate ions are the CO2 carrier in the membrane. Since a mixture of CO2 and O-2 is produced, the possibility exists to use this stream in oxy-firing of additional fuel. From this research, a novel concept for efficiently producing a carbon dioxide rich effluent from combustion of a fossil fuel was proposed. Carbon dioxide and oxygen are captured from the flue gas of a fossil-fuel combustor by one or more electrochemical cells or cell stacks. The separated stream is then transferred to an oxy-fired combustor which uses the gas stream for ancillary combustion, ultimately resulting in an effluent rich in carbon dioxide. A portion of the resulting flow produced by the oxy-fired combustor may be continuously recycled back into the oxy-fired combustor for temperature control and an optimal carbon dioxide rich effluent. Published by Elsevier Ltd. C1 [Pennline, Henry W.; Granite, Evan J.; Luebke, David R.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Kitchin, John R.; Landon, James] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Weiland, Lisa M.] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA. RP Granite, EJ (reprint author), US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA. EM evan.granite@netl.doe.gov RI Landon, James/C-6437-2013; Kitchin, John/A-2363-2010 OI Landon, James/0000-0001-8113-5166; Kitchin, John/0000-0003-2625-9232 NR 20 TC 21 Z9 22 U1 7 U2 49 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-2361 J9 FUEL JI Fuel PD JUN PY 2010 VL 89 IS 6 BP 1307 EP 1314 DI 10.1016/j.fuel.2009.11.036 PG 8 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 575XR UT WOS:000276105300016 ER PT J AU Baltrus, JP Granite, EJ Pennline, HW Stanko, D Hamilton, H Rowsell, L Poulston, S Smith, A Chu, W AF Baltrus, John P. Granite, Evan J. Pennline, Henry W. Stanko, Dennis Hamilton, Hugh Rowsell, Liz Poulston, Stephen Smith, Andrew Chu, Wilson TI Surface characterization of palladium-alumina sorbents for high-temperature capture of mercury and arsenic from fuel gas SO FUEL LA English DT Article; Proceedings Paper CT Symposium on Advanced Fossil Energy Utilization CY APR 26-30, 2009 CL Tampa, FL SP Fuels & Petrochem Div Res & New Technol Comm DE Mercury; Arsenic; Surface characterization; Fuel gas; Sorbent AB Coal gasification with subsequent cleanup of the resulting fuel gas is a way to reduce the impact of mercury and arsenic in the environment during power generation and on downstream catalytic processes in chemical production. The interactions of mercury and arsenic with Pd/Al(2)O(3) model thin film sorbents and Pd/Al(2)O(3) powders have been studied to determine the relative affinities of palladium for mercury and arsenic, and how they are affected by temperature and the presence of hydrogen sulfide in the fuel gas. The implications of the results on strategies for capturing the toxic metals using a sorbent bed are discussed. Published by Elsevier Ltd. C1 [Baltrus, John P.; Granite, Evan J.; Pennline, Henry W.; Stanko, Dennis] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Hamilton, Hugh; Rowsell, Liz; Poulston, Stephen; Smith, Andrew] Johnson Matthey Plc, Ctr Technol, Reading RG4 9NH, Berks, England. [Chu, Wilson] Johnson Matthey, Malvern, PA 19355 USA. RP Baltrus, JP (reprint author), US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA. EM john.baltrus@netl.doe.gov NR 10 TC 30 Z9 33 U1 3 U2 20 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-2361 J9 FUEL JI Fuel PD JUN PY 2010 VL 89 IS 6 BP 1323 EP 1325 DI 10.1016/j.fuel.2009.09.030 PG 3 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 575XR UT WOS:000276105300019 ER PT J AU Tonn, B AF Tonn, Bruce TI Energy for the Future: A New Agenda SO FUTURES LA English DT Book Review C1 [Tonn, Bruce] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Tonn, B (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. EM bet@ornl.gov NR 1 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0016-3287 J9 FUTURES JI Futures PD JUN PY 2010 VL 42 IS 5 BP 504 EP 505 DI 10.1016/j.futures.2009.11.036 PG 2 WC Economics; Planning & Development SC Business & Economics; Public Administration GA 614YZ UT WOS:000279097100009 ER PT J AU Nagler, JJ Davis, TL Modi, N Vijayan, MM Schultz, I AF Nagler, James J. Davis, Tracy L. Modi, Nita Vijayan, Mathilakath M. Schultz, Irvin TI Intracellular, not membrane, estrogen receptors control vitellogenin synthesis in the rainbow trout SO GENERAL AND COMPARATIVE ENDOCRINOLOGY LA English DT Article DE Estrogen; Receptor; Fish; Vitellogenin; Membrane; Hepatocyte ID NONGENOMIC ACTION; SALMO-GAIRDNERI; IN-VITRO; MESSENGER-RNA; EXPRESSION; BETA; HEPATOCYTES; INDUCTION; ESTRADIOL; HORMONE AB The synthesis of vitellogenin, via estrogens, by the liver of female oviparous vertebrates provides the precursor for yolk proteins in developing oocytes. There are two distinct estrogenic transduction pathways in vertebrates that could control vitellogenin synthesis. One provides direct genomic (i.e., nuclear) control in which estrogens bind to estrogen receptors (ERs) that function as transcription factors within the cell nucleus. The other involves a non-genomic pathway initiated by estrogens binding to membrane-bound ERs at the cell surface. The objective of this paper was to determine which ER transduction pathway regulates hepatic vitellogenin synthesis in rainbow trout. For this study an estrogenic molecule, 17 alpha-ethynylestradiol (EE2), was conjugated to a peptide moiety (PEP) to make 17 alpha-ethynylestradiol-peptide (EE2-PEP) to bind to membrane-bound ERs. This was compared with EE2 that is capable of crossing the cell membrane and binding to intracellular ERs. An in vivo experiment using male rainbow trout injected with either EE2-PEP or EE2 demonstrated that only EE2 stimulated a significant increase in plasma vitellogenin concentrations. This was further confirmed by treating male rainbow trout hepatocytes in primary culture for 24 h with PEP, EE2-PEP or EE2. Only the EE2 treatment resulted in significantly higher vitellogenin expression in trout hepatocytes. These results demonstrate that estrogens must gain entry into hepatocytes to bind to intracellular ERs in order to stimulate vitellogenin synthesis. While this study cannot conclude that a membrane ER system is absent in the rainbow trout liver, it has established that the liver synthesis of vitellogenin in rainbow trout is regulated by intracellular ERs. (C) 2010 Elsevier Inc. All rights reserved. C1 [Nagler, James J.] Univ Idaho, Dept Biol Sci, Moscow, ID 83844 USA. [Davis, Tracy L.] Univ Idaho, Dept Anim & Vet Sci, Moscow, ID 83844 USA. [Nagler, James J.; Davis, Tracy L.] Univ Idaho, Ctr Reprod Biol, Moscow, ID 83844 USA. [Modi, Nita; Vijayan, Mathilakath M.] Univ Waterloo, Dept Biol, Waterloo, ON N2L 3G1, Canada. [Schultz, Irvin] Battelle PNNL Marine Sci Lab, Sequim, WA 98382 USA. RP Nagler, JJ (reprint author), Univ Idaho, Dept Biol Sci, POB 443051, Moscow, ID 83844 USA. EM jamesn@uidaho.edu FU National Institute of Environmental Health Sciences [ES012446]; Natural Science and Engineering Research Council, Canada FX This research was supported by the National Institute of Environmental Health Sciences Grant ES012446 to JJN and a Natural Science and Engineering Research Council, Canada, discovery grant to MMV. NR 42 TC 20 Z9 20 U1 0 U2 11 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0016-6480 J9 GEN COMP ENDOCR JI Gen. Comp. Endocrinol. PD JUN 1 PY 2010 VL 167 IS 2 BP 326 EP 330 DI 10.1016/j.ygcen.2010.03.022 PG 5 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 602XN UT WOS:000278172500016 PM 20346361 ER PT J AU Fleming, TC Shin, JY Lee, SH Becker, E Huang, KC Bustamante, C Pogliano, K AF Fleming, Tinya C. Shin, Jae Yen Lee, Sang-Hyuk Becker, Eric Huang, Kerwyn Casey Bustamante, Carlos Pogliano, Kit TI Dynamic SpoIIIE assembly mediates septal membrane fission during Bacillus subtilis sporulation SO GENES & DEVELOPMENT LA English DT Article DE SpoIIIE; DNA translocase; membrane fission; FRAP; PALM ID ASYMMETRIC CELL-DIVISION; CHROMOSOME ORIENTATION; DNA TRANSLOCATION; GENE-EXPRESSION; PROTEIN; FUSION; LOCALIZATION; CYTOKINESIS; SEGREGATION; ENGULFMENT AB SpoIIIE is an FtsK-related protein that transports the forespore chromosome across the Bacillus subtilis sporulation septum. We use membrane photobleaching and protoplast assays to demonstrate that SpoIIIE is required for septal membrane fission in the presence of trapped DNA, and that DNA is transported across separate daughter cell membranes, suggesting that SpoIIIE forms a channel that partitions the daughter cell membranes. Our results reveal a close correlation between septal membrane fission and the assembly of a stable SpoIIIE translocation complex at the septal midpoint. Time-lapse epifluorescence, total internal reflection fluorescence (TIRF) microscopy, and live-cell photoactivation localization microscopy (PALM) demonstrate that the SpoIIIE transmembrane domain mediates dynamic localization to active division sites, whereas the assembly of a stable focus also requires the cytoplasmic domain. The transmembrane domain fails to completely separate the membrane, and it assembles unstable foci. TIRF microscopy and biophysical modeling of fluorescence recovery after photobleaching (FRAP) data suggest that this unstable protein transitions between disassembled and assembled oligomeric states. We propose a new model for the role of SpoIIIE assembly in septal membrane fission that has strong implications for how the chromosome terminus crosses the septum. C1 [Fleming, Tinya C.; Becker, Eric; Pogliano, Kit] Univ Calif San Diego, Div Biol Sci, La Jolla, CA 92093 USA. [Shin, Jae Yen; Lee, Sang-Hyuk; Bustamante, Carlos] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Shin, Jae Yen; Bustamante, Carlos] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Lee, Sang-Hyuk; Bustamante, Carlos] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Huang, Kerwyn Casey] Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA. [Bustamante, Carlos] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Bustamante, Carlos] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Pogliano, K (reprint author), Univ Calif San Diego, Div Biol Sci, La Jolla, CA 92093 USA. EM kpogliano@ucsd.edu FU National Institutes of Health [GM057045, GM071552, GM032543, GM075000, 5F32GM081174]; Director's New Innovator Award [DP2OD006466] FX We thank Jan Liphardt, Ann McEvoy, and Derek Greenfield for discussion and assistance with the PALM instrumentation, and Michael W. Davidson for the gift of the tdEOS plasmid. We also thank Dan Broder for help with the protoplast experiments. T. F. and E. B. performed the epifluorescence, FRAP, and TIRF experiments in the K. P. laboratory. K. C. H. performed the biophysical modeling experiments. J. Y. S and S. H. L. conducted PALM experiments in the C. B. laboratory. This research was supported by National Institutes of Health grants GM057045 (to K. P.), GM071552 and GM032543 (to C. B.), and GM075000 (to K. C. H), and the Director's New Innovator Award DP2OD006466 (to K. C. H). T. C. F. is supported by the NIH post-doctoral fellowship 5F32GM081174. NR 34 TC 35 Z9 37 U1 0 U2 8 PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT PI WOODBURY PA 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2924 USA SN 0890-9369 J9 GENE DEV JI Genes Dev. PD JUN 1 PY 2010 VL 24 IS 11 BP 1160 EP 1172 DI 10.1101/gad.1925210 PG 13 WC Cell Biology; Developmental Biology; Genetics & Heredity SC Cell Biology; Developmental Biology; Genetics & Heredity GA 604GJ UT WOS:000278267200010 PM 20516200 ER PT J AU Pena, J Kwon, KD Refson, K Bargar, JR Sposito, G AF Pena, Jasquelin Kwon, Kideok D. Refson, Keith Bargar, John R. Sposito, Garrison TI Mechanisms of nickel sorption by a bacteriogenic birnessite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID BIOGENIC MANGANESE OXIDES; SOIL FERROMANGANESE NODULES; X-RAY-FLUORESCENCE; BACTERIAL BIOFILM; HEXAGONAL-BIRNESSITE; EXAFS SPECTROSCOPY; PSEUDOMONAS-PUTIDA; CRYSTAL-CHEMISTRY; ZINC SORPTION; PINAL CREEK AB A synergistic experimental computational approach was used to study the molecular-scale mechanisms of Ni sorption at varying loadings and at pH 6-8 on the biogenic hexagonal birnessite produced by Pseudomonas putida GB-1. We found that Ni is scavenged effectively by bacterial biomass-birnessite assemblages. At surface excess values below 0.18 mol Ni kg(-1) sorbent (0.13 mol Ni mol(-1) Mn), the biomass component of the sorbent did not interfere with Ni sorption on mineral sites. Extended X-ray absorption fine structure (EXAFS) spectra showed two dominant coordination environments: Ni bound as a triple-corner-sharing (Ni-TCS) complex at vacancy sites and Ni incorporated (Ni-inc) into the MnO(2) sheet, with the latter form of Ni favored at high sorptive concentrations and decreased proton activity. In parallel to our spectral analysis, first-principles geometry optimizations based on density functional theory (DFT) were performed to investigate the structure of Ni surface complexes at vacancy sites. Excellent agreement was achieved between EXAFS- and DFT-derived structural parameters for Ni-TCS and Ni-inc. Reaction-path calculations revealed a pH-dependent energy barrier associated with the transition from Ni-TCS to Ni-inc. Our results are consistent with the rate-limited incorporation of Ni at vacancy sites in our sorption samples, but near-equilibrium state of Ni in birnessite phases found in nodule samples. This study thus provides direct and quantitative evidence of the factors governing the occurrence of Ni adsorption versus Ni incorporation in biogenic hexagonal birnessite, a key mineral in the terrestrial manganese cycle. Published by Elsevier Ltd. C1 [Pena, Jasquelin; Kwon, Kideok D.; Sposito, Garrison] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Pena, Jasquelin; Sposito, Garrison] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. [Refson, Keith] Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. [Bargar, John R.] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. RP Pena, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, 37 Mulford Hall 3114, Berkeley, CA 94720 USA. EM jpena@lbl.gov RI Refson, Keith/G-1407-2013; OI Refson, Keith/0000-0002-8715-5835 FU Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231]; University of California FX This research was supported by the University of California Toxic Substances Research and Teaching Program as well as by the Director, Office of Energy Research, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Our DFT computations used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. J. Pena was also supported by a University of California President's Dissertation Fellowship. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. We thank Joe Rogers (SSRL), Andy Yang (UCB) and Olivia Dong (UCB) for logistical support. NR 60 TC 48 Z9 51 U1 9 U2 61 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN 1 PY 2010 VL 74 IS 11 BP 3076 EP 3089 DI 10.1016/j.gca.2010.02.035 PG 14 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 592AZ UT WOS:000277348300003 ER PT J AU Abdel-Fattah, AI AF Abdel-Fattah, A. I. TI Transport of Plutonium association and intrinsic colloids in saturated porous media SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Abdel-Fattah, A. I.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. NR 1 TC 0 Z9 0 U1 1 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1 EP A1 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400003 ER PT J AU Alessi, DS Uster, B Veeramani, H Stubbs, JE Lezama-Pacheco, JS Bargar, JR Bernier-Latmani, R AF Alessi, Daniel S. Uster, Benjamin Veeramani, Harish Stubbs, Joanne E. Lezama-Pacheco, Juan S. Bargar, John R. Bernier-Latmani, Rizlan TI Method to estimate the contribution of molecular U(IV) to the product of U(VI) reduction SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Alessi, Daniel S.; Uster, Benjamin; Veeramani, Harish; Bernier-Latmani, Rizlan] Ecole Polytech Fed Lausanne, Lausanne, Switzerland. [Stubbs, Joanne E.; Lezama-Pacheco, Juan S.; Bargar, John R.] SSRL, Menlo Pk, CA USA. EM rizlan.bernier-latmani@epfl.ch RI Bernier-Latmani, Rizlan/E-4398-2011; Stubbs, Joanne/F-9710-2013 OI Bernier-Latmani, Rizlan/0000-0001-6547-722X; Stubbs, Joanne/0000-0002-8509-2009 NR 0 TC 3 Z9 3 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A11 EP A11 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400023 ER PT J AU Amonette, JE Nachimuthu, P Russell, CK Baer, DR Tratnyek, PG Dohnalkova, A Wang, CM Nurmi, JT AF Amonette, J. E. Nachimuthu, P. Russell, C. K. Baer, D. R. Tratnyek, P. G. Dohnalkova, A. Wang, C. M. Nurmi, J. T. TI Adsorbate effects on aqueous aging of nano-sized zerovalent iron (nZVI) particles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Amonette, J. E.; Nachimuthu, P.; Russell, C. K.; Baer, D. R.; Dohnalkova, A.; Wang, C. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Tratnyek, P. G.; Nurmi, J. T.] Oregon Hlth & Sci Univ, Portland, OR 97006 USA. EM jim.amonette@pnl.gov; tratnyek@ebs.ogi.edu RI Baer, Donald/J-6191-2013 OI Baer, Donald/0000-0003-0875-5961 NR 0 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A17 EP A17 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400035 ER PT J AU Ankner, JF Browning, JF Halbert, CE Lokitz, BS Carmichael, JR Kilbey, SM Rother, G Wesolowski, DJ AF Ankner, John F. Browning, James F. Halbert, Candice E. Lokitz, Brad S. Carmichael, Justin R. Kilbey, S. Michael, II Rother, Gernot Wesolowski, David J. TI Neutron reflectivity sample cells for geochemically relevant environments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ankner, John F.; Browning, James F.; Halbert, Candice E.; Lokitz, Brad S.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Lokitz, Brad S.; Kilbey, S. Michael, II] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Carmichael, Justin R.] Oak Ridge Natl Lab, Neutron Facil Dev Div, Oak Ridge, TN 37831 USA. [Rother, Gernot; Wesolowski, David J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM anknerjf@ornl.gov RI Rother, Gernot/B-7281-2008; Lokitz, Bradley/Q-2430-2015 OI Rother, Gernot/0000-0003-4921-6294; Lokitz, Bradley/0000-0002-1229-6078 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A25 EP A25 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400051 ER PT J AU Anovitz, LM Cole, DR Rother, G Valley, JW Jackson, A AF Anovitz, L. M. Cole, D. R. Rother, G. Valley, J. W. Jackson, A. TI Analysis of nano-porosity in the St. Peter Sandstone Using (Ultra) Small Angle Neutron Scattering SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Anovitz, L. M.] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA. [Anovitz, L. M.; Cole, D. R.; Rother, G.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Valley, J. W.] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA. [Jackson, A.] NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. RI Valley, John/B-3466-2011; Jackson, Andrew/B-9793-2008; Rother, Gernot/B-7281-2008; Anovitz, Lawrence/P-3144-2016 OI Valley, John/0000-0003-3530-2722; Jackson, Andrew/0000-0002-6296-0336; Rother, Gernot/0000-0003-4921-6294; Anovitz, Lawrence/0000-0002-2609-8750 NR 1 TC 1 Z9 1 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A26 EP A26 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400052 ER PT J AU Baker, GS Hubbard, SS Watson, DB Gasperikova, E Wu, Y Brooks, S AF Baker, Gregory S. Hubbard, S. S. Watson, D. B. Gasperikova, E. Wu, Y. Brooks, S. TI Time-lapse Electrical Resistivity Tomography (ERT) monitoring of in situ hydrogeochemical changes associated with an emulsified vegetable oil injection for bioreduction of Uranium(VI) SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Baker, Gregory S.] Univ Tennessee, Knoxville, TN 37996 USA. [Hubbard, S. S.; Gasperikova, E.; Wu, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Watson, D. B.; Brooks, S.] Oak Ridge Natl Lab, Oak Ridge, TN USA. EM gbaker@utk.edu RI Brooks, Scott/B-9439-2012; Gasperikova, Erika/D-1117-2015; Watson, David/C-3256-2016 OI Brooks, Scott/0000-0002-8437-9788; Gasperikova, Erika/0000-0003-1553-4569; Watson, David/0000-0002-4972-4136 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A42 EP A42 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401266 ER PT J AU Banfield, JF Zhang, HZ Gilbert, B Williams, KH Singer, S Waychunas, G AF Banfield, Jillian F. Zhang, Hengzhong Gilbert, Benjamin Williams, Kenneth Hurst Singer, Steven Waychunas, Glenn TI A perspective on nanominerals and their roles in microbial ecosystesms SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Banfield, Jillian F.; Zhang, Hengzhong; Gilbert, Benjamin; Williams, Kenneth Hurst; Singer, Steven; Waychunas, Glenn] Univ Calif Berkeley, Lawrence Berkeley Lab, Nanogeosci Ctr, Berkeley, CA 94720 USA. EM jbanfield@berkeley.edu RI Williams, Kenneth/O-5181-2014; Gilbert, Benjamin/E-3182-2010 OI Williams, Kenneth/0000-0002-3568-1155; NR 0 TC 0 Z9 0 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A48 EP A48 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401278 ER PT J AU Bargar, JR Campbell, KM Veeramani, H Stubbs, JE Lezama-Pacheco, JS Suvorova, E Ulrich, KU Blue, LY Bernier-Latmani, R Giammar, DE Yabusaki, SB Long, PE AF Bargar, John R. Campbell, Kate M. Veeramani, Harish Stubbs, Joanne E. Lezama-Pacheco, Juan S. Suvorova, Elena Ulrich, Kai-Uwe Blue, Lisa Y. Bernier-Latmani, Rizlan Giammar, Daniel E. Yabusaki, Steven B. Long, Philip E. TI Reactivity of nano-biogenic uraninite in the subsurface: Dissolution rates and mechanisms SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bargar, John R.; Stubbs, Joanne E.; Lezama-Pacheco, Juan S.] Stanford Synctrotron Radiat Lightsource, Menlo Pk, CA 94025 USA. [Campbell, Kate M.] US Geol Survey, Boulder, CO 80303 USA. [Veeramani, Harish; Suvorova, Elena; Bernier-Latmani, Rizlan] Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland. [Ulrich, Kai-Uwe; Blue, Lisa Y.; Giammar, Daniel E.] Washington Univ, St Louis, MO 63130 USA. [Yabusaki, Steven B.; Long, Philip E.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM bargar@slac.stanford.edu RI Bernier-Latmani, Rizlan/E-4398-2011; Stubbs, Joanne/F-9710-2013; Suvorova, Elena/I-5582-2013 OI Bernier-Latmani, Rizlan/0000-0001-6547-722X; Stubbs, Joanne/0000-0002-8509-2009; NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A52 EP A52 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401285 ER PT J AU Bartov, G Johnson, TM Ruhl, L Vengosh, A Southworth, G AF Bartov, Gideon Johnson, Thomas M. Ruhl, Laura Vengosh, Avner Southworth, George TI Mercury stable isotope tracing of multiple Mercury sources in the Tennessee River system SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bartov, Gideon; Johnson, Thomas M.] Univ Illinois, Dept Geol, Urbana, IL 61801 USA. [Ruhl, Laura; Vengosh, Avner] Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA. [Southworth, George] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM gbartov2@illinois.edu; tmjohnsn@illinois.edu; vengosh@duke.edu; southworthgr@ornl.gov NR 0 TC 0 Z9 0 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A57 EP A57 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401295 ER PT J AU Bazilevskaya, E Bhatt, M Jin, L Rother, G Cole, D Urbanski, J Brantley, SL AF Bazilevskaya, E. Bhatt, M. Jin, L. Rother, G. Cole, D. Urbanski, J. Brantley, S. L. TI Transformation of bedrock to soil during granite and diabase weathering: The interplay of porosity and chemistry SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bazilevskaya, E.; Bhatt, M.; Jin, L.; Brantley, S. L.] Penn State Univ, University Pk, PA 16802 USA. [Rother, G.; Cole, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Urbanski, J.] Phoenix Xray Syst & Serv Inc, Lewistown, PA 17044 USA. EM eab204@psu.edu RI Rother, Gernot/B-7281-2008 OI Rother, Gernot/0000-0003-4921-6294 NR 2 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A63 EP A63 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401307 ER PT J AU Beig, M Gebrehiwet, T Fujita, Y Redden, G Smith, RW AF Beig, Mikala Gebrehiwet, Tsigabu Fujita, Yoshiko Redden, George Smith, Robert W. TI Sr2+ uptake during precipitation of CaCO3 in constant composition experiments with variable ion ratios SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gebrehiwet, Tsigabu; Smith, Robert W.] Univ Idaho, Idaho Falls, ID 83402 USA. [Fujita, Yoshiko; Redden, George] Idaho Natl Lab, Idaho Falls, ID 83415 USA. EM mbeig@alumni.rice.edu; tgebrehiwet@uidaho.edu; Yoshiko.Fujitia@inl.gov; George.Redden@inl.gov; smithbob@uidaho.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A72 EP A72 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401325 ER PT J AU Benezeth, P Palmer, DA Wesolowski, DJ Schott, J Dandurand, JL AF Benezeth, P. Palmer, D. A. Wesolowski, D. J. Schott, J. Dandurand, J. L. TI Experimental studies on the thermodynamics and kinetics of fluid-mineral interactions: Applications to hydrothermal systems and geological CO2 sequestration SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wesolowski, D. J.; Schott, J.; Dandurand, J. L.] Univ Toulouse, LMTG, CNRS, OMP, F-31400 Toulouse, France. [Benezeth, P.; Palmer, D. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. EM benezeth@lmtg.obs-mip.fr RI BENEZETH, Pascale/H-7969-2014 OI BENEZETH, Pascale/0000-0002-1841-2383 NR 11 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A77 EP A77 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401335 ER PT J AU Bernier-Latmani, R Vecchia, ED Junier, P Lezama, J Veeramani, H Suvorova, EI Bargar, JR Alessi, DS Sharp, JO Wigginton, NS Stubbs, JE AF Bernier-Latmani, Rizlan Vecchia, Elena Dalla Junier, Pilar Lezama, Juan Veeramani, Harish Suvorova, Elena I. Bargar, John R. Alessi, Daniel S. Sharp, Jonathan O. Wigginton, Nicholas S. Stubbs, Joanne E. TI Non-uraninite products for microbial U(VI) reduction SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bernier-Latmani, Rizlan; Vecchia, Elena Dalla; Junier, Pilar; Veeramani, Harish; Suvorova, Elena I.; Alessi, Daniel S.; Sharp, Jonathan O.; Wigginton, Nicholas S.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Lezama, Juan; Bargar, John R.; Stubbs, Joanne E.] SSRL, Menlo Pk, CA USA. EM rizlan.bernier-latmani@epfl.ch RI Wigginton, Nicholas/F-1747-2011; Bernier-Latmani, Rizlan/E-4398-2011; Stubbs, Joanne/F-9710-2013; Suvorova, Elena/I-5582-2013 OI Wigginton, Nicholas/0000-0001-9161-6131; Bernier-Latmani, Rizlan/0000-0001-6547-722X; Stubbs, Joanne/0000-0002-8509-2009; NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A84 EP A84 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401350 ER PT J AU Bhlke, JK Jackson, WA Hatzinger, PB Sturchio, N Gu, BH AF Bhlke, J. K. Jackson, W. Andrew Hatzinger, Paul B. Sturchio, Neil Gu, Baohua TI Isotopic variation in terrestrial perchlorate and associated nitrate SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bhlke, J. K.] US Geol Survey, Reston, VA 22092 USA. [Jackson, W. Andrew] Texas Tech Univ, Lubbock, TX 79409 USA. [Sturchio, Neil] Univ Illinois, Chicago, IL USA. [Gu, Baohua] Oak Ridge Natl Lab, Oak Ridge, TN USA. EM jkbohlke@usgs.gov; andrew.jackson@ttu.edu; paul.hatzinger@shawgrp.com; sturchio@uic.edu; gub1@ornl.gov RI Gu, Baohua/B-9511-2012; Jackson, William/B-8999-2009 OI Gu, Baohua/0000-0002-7299-2956; NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A100 EP A100 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401382 ER PT J AU Bian, Y Miller, C Jiang, X Dong, W Liang, L Gu, B AF Bian, Y. Miller, C. Jiang, X. Dong, W. Liang, L. Gu, B. TI The reduction of Hg(II) and complexation of Hg(0) with natural dissolved organic matter in aquatic environments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bian, Y.; Miller, C.; Dong, W.; Liang, L.; Gu, B.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. [Bian, Y.; Jiang, X.] Chinese Acad Sci, Inst Soil Sci, Nanjing, Peoples R China. EM gub1@ornl.gov RI Gu, Baohua/B-9511-2012; Liang, Liyuan/O-7213-2014 OI Gu, Baohua/0000-0002-7299-2956; Liang, Liyuan/0000-0003-1338-0324 NR 0 TC 0 Z9 0 U1 2 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A87 EP A87 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401355 ER PT J AU Bickmore, BR Rosso, KM Madden, AS AF Bickmore, B. R. Rosso, K. M. Madden, A. S. TI Surface structure effects on gibbsite nanoparticle reactivity SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bickmore, B. R.] Brigham Young Univ, Provo, UT 84602 USA. [Rosso, K. M.] PNNL, Richland, WA 99352 USA. [Madden, A. S.] Univ Oklahoma, Norman, OK 73019 USA. EM barry_bickmore@byu.edu; Kevin.Rosso@pnl.gov; amadden@ou.edu NR 0 TC 0 Z9 0 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A88 EP A88 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401357 ER PT J AU Bilheux, HZ Horita, J Warren, JM Perfect, E Kang, M AF Bilheux, H. Z. Horita, J. Warren, J. M. Perfect, E. Kang, M. TI Neutron imaging of fluids in plant-soil-rock systems using the ORNL/HFIR CG-1 beamline SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bilheux, H. Z.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Horita, J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Warren, J. M.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Perfect, E.; Kang, M.] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA. EM bilheuxhn@ornl.gov; horitaj@ornl.gov; warrenjm@ornl.gov; eperfect@utk.edu; kangm@ornl.gov RI Warren, Jeffrey/B-9375-2012; Bilheux, Hassina/H-4289-2012 OI Warren, Jeffrey/0000-0002-0680-4697; Bilheux, Hassina/0000-0001-8574-2449 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A91 EP A91 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401363 ER PT J AU Biswas, A Brooks, S Miller, C Southworth, G Mosher, J Drake, M Yin, XP AF Biswas, Abir Brooks, Scott Miller, Carrie Southworth, George Mosher, Jennifer Drake, Meghan Yin, Xiangping TI Methylmercury production by Desulfovibrio desulfuricans ND132: Influences of natural organic matter and growth stage SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Biswas, Abir; Brooks, Scott; Miller, Carrie; Southworth, George; Mosher, Jennifer; Drake, Meghan; Yin, Xiangping] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM brookssc@ornl.gov RI Drake, Meghan/A-6446-2011; Brooks, Scott/B-9439-2012 OI Drake, Meghan/0000-0001-7969-4823; Brooks, Scott/0000-0002-8437-9788 NR 3 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A94 EP A94 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401369 ER PT J AU Boswell, R AF Boswell, Ray TI Progress in understanding the energy and environmental implications of gas hydrates SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Boswell, Ray] US DOE, Natl Energy Technol Lab, Morgantown, WV USA. EM ray.boswell@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A108 EP A108 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401397 ER PT J AU Bourg, IC Sposito, G AF Bourg, Ian C. Sposito, Garrison TI Molecular dynamics simulations of brine-clay interfaces: Implications for CO2 storage in saline aquifers SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bourg, Ian C.; Sposito, Garrison] Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA USA. EM icbourg@lbl.gov NR 9 TC 0 Z9 0 U1 2 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A110 EP A110 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401402 ER PT J AU Boyanov, MI O'Loughlin, EJ Kwon, MJ Mishra, B Rui, X Shibata, T Kemner, KK AF Boyanov, M. I. O'Loughlin, E. J. Kwon, M. -J. Mishra, B. Rui, X. Shibata, T. Kemner, K. K. TI Mineral nucleation and redox transformations of U(VI) and Fe(II) species at a carboxyl surface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Boyanov, M. I.; O'Loughlin, E. J.; Kwon, M. -J.; Mishra, B.; Kemner, K. K.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Rui, X.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Shibata, T.] IIT, Chicago, IL 60616 USA. EM mboyanov@anl.gov NR 0 TC 2 Z9 2 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A115 EP A115 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401411 ER PT J AU Brantley, SL Jin, L Ma, L Bhatt, M Fletcher, R Rother, G Cole, D Navarre-Sitchler, A AF Brantley, S. L. Jin, L. Ma, L. Bhatt, M. Fletcher, R. Rother, G. Cole, D. Navarre-Sitchler, A. TI The movement of rock particles up and water pores down through weathering bedrock SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Brantley, S. L.; Jin, L.; Ma, L.; Bhatt, M.; Fletcher, R.] Earth & Environm Syst Inst, Ctr Environm Kinet Anal, University Pk, PA 16802 USA. [Rother, G.; Cole, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Navarre-Sitchler, A.] Colorado Sch Mines, Golden, CO 80401 USA. EM brantley@eesi.psu.edu RI Dosseto, Anthony/A-2543-2008; Rother, Gernot/B-7281-2008 OI Rother, Gernot/0000-0003-4921-6294 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A118 EP A118 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401418 ER PT J AU Brown, ST DePaolo, DJ Turchyn, AV Alt, JC AF Brown, Shaun T. DePaolo, Donald J. Turchyn, Alexandra V. Alt, Jeffrey C. TI Calcium isotope fractionation in ocean ridge hydrothermal systems SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Brown, Shaun T.; DePaolo, Donald J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Brown, Shaun T.; DePaolo, Donald J.] UC Berkeley, Dept Earth Planetary Sci, Berkeley, CA USA. [Turchyn, Alexandra V.] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England. [Alt, Jeffrey C.] Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA. EM stbrown@lbl.gov RI Brown, Shaun/E-9398-2015 OI Brown, Shaun/0000-0002-2159-6718 NR 0 TC 1 Z9 1 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A125 EP A125 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401431 ER PT J AU Catalano, JG Fenter, P Park, C Rosso, KM Frierdich, AJ Otemuyiwa, BT AF Catalano, J. G. Fenter, P. Park, C. Rosso, K. M. Frierdich, A. J. Otemuyiwa, B. T. TI Fe(II)-induced structural transformations of hematite surfaces and their impact on contaminants SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Catalano, J. G.; Frierdich, A. J.; Otemuyiwa, B. T.] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA. [Catalano, J. G.; Fenter, P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Park, C.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Rosso, K. M.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. EM catalano@wustl.edu RI Catalano, Jeffrey/A-8322-2013; Park, Changyong/A-8544-2008 OI Catalano, Jeffrey/0000-0001-9311-977X; Park, Changyong/0000-0002-3363-5788 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A150 EP A150 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400550 ER PT J AU Chapman, EC Capo, RC Stewart, BW Hedin, RS Weaver, TJ Edenborn, HM AF Chapman, E. C. Capo, R. C. Stewart, B. W. Hedin, R. S. Weaver, T. J. Edenborn, H. M. TI Sr isotope quantification of siderite, brine and AMD contribution to high TDS well discharges SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Chapman, E. C.; Capo, R. C.; Stewart, B. W.] Univ Pittsburgh, Dept Geol & Planetary Sci, Pittsburgh, PA 15260 USA. [Hedin, R. S.; Weaver, T. J.] Hedin Environm, Pittsburgh, PA 15228 USA. [Edenborn, H. M.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM ecf2@pitt.edu; rcapo@pitt.edu; bhedin@hedinenv.com; ptweaver@usachoice.net; harry.edenborn@netl.doe.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A161 EP A161 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400572 ER PT J AU Chatman, S Zarzycki, P Preocanin, T Rosso, KM AF Chatman, S. Zarzycki, P. Preocanin, T. Rosso, K. M. TI Electrostatic potentials and charge distributions at structurally defined hematite/electrolyte interfaces SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Chatman, S.; Zarzycki, P.; Rosso, K. M.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Preocanin, T.] Univ Zagreb, Zagreb 10000, Croatia. EM shawn.chatman@pnl.gov NR 1 TC 0 Z9 0 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A163 EP A163 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400576 ER PT J AU Chen, CY Calaway, WF Lee, T Pellin, MJ Shen, JJS Thonnard, N Veryovkin, IV AF Chen, C. -Y. Calaway, W. F. Lee, T. Pellin, M. J. Shen, J. J-S. Thonnard, N. Veryovkin, I. V. TI Laser post-ionization secondary neutral TOF-MS for isotopic analysis of pre-solar grains SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Chen, C. -Y.; Lee, T.; Shen, J. J-S.] Acad Sinica, Inst Earth Sci, Taipei 115, Taiwan. [Calaway, W. F.; Pellin, M. J.; Veryovkin, I. V.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Thonnard, N.] Univ Tennessee, Knoxville, TN 37996 USA. EM typhoon@gate.sinica.edu.tw RI Pellin, Michael/B-5897-2008; Lee, Typhoon/N-8347-2013 OI Pellin, Michael/0000-0002-8149-9768; NR 2 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A166 EP A166 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400582 ER PT J AU Christensen, JN Mckinley, JP Conrad, ME Stoliker, D Dresel, PE DePaolo, DJ Zachara, JM AF Christensen, John N. Mckinley, James P. Conrad, Mark E. Stoliker, Deborah Dresel, P. Evan DePaolo, Donald J. Zachara, John M. TI Uranium isotopic systematics of the 300 Area (Hanford, WA) groundwater plume and U-contaminated sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Christensen, John N.; Conrad, Mark E.; DePaolo, Donald J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Mckinley, James P.; Dresel, P. Evan; Zachara, John M.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Stoliker, Deborah] US Geol Survey, Menlo Pk, CA 94025 USA. EM jnchristensen@lbl.gov; james.mckinley@pnl.gov; msconrad@lbl.gov; dlstoliker@usgs.gov; DJDepaolo@lbl.gov; john.zachara@pnl.gov RI Christensen, John/D-1475-2015 NR 1 TC 0 Z9 0 U1 3 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A179 EP A179 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400607 ER PT J AU Cole, DR Labotka, TC Fayek, M Utsunomiya, S DeAngelis, M Anovitz, LM AF Cole, David R. Labotka, T. C. Fayek, M. Utsunomiya, S. DeAngelis, M. Anovitz, L. M. TI Chemical, isotopic and structural features associated with mineral-fluid systems far from equilibrium SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Cole, David R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Labotka, T. C.; DeAngelis, M.; Anovitz, L. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Fayek, M.] Univ Manitoba, Winnipeg, MB R3T 2N2, Canada. [Utsunomiya, S.] Kyushu Univ, Fukuoka 812, Japan. EM coledr@ornl.gov RI Anovitz, Lawrence/P-3144-2016 OI Anovitz, Lawrence/0000-0002-2609-8750 NR 0 TC 0 Z9 0 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A185 EP A185 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400620 ER PT J AU Colon, CFJ Finch, R AF Colon, Carlos F. Jove Finch, Robert TI Evaluation of Pu solubility using the mixed redox phase PuO2+x: Modeling of existing experimental data SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Colon, Carlos F. Jove; Finch, Robert] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM cfjovec@sandia.gov; rfinch@sandia.gov NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A482 EP A482 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401534 ER PT J AU Conrad, ME Bill, M Yang, L Han, RY Beller, HR AF Conrad, Mark E. Bill, Markus Yang, Li Han, Ruyang Beller, Harry R. TI Variable isotope fractionation during microbial metabolism of lactate SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Conrad, Mark E.; Bill, Markus; Yang, Li; Han, Ruyang; Beller, Harry R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM msconrad@lbl.gov; mbill@lbl.gov; lyang@lbl.gov; rhan@lbl.gov; hrbeller@lbl.gov RI Beller, Harry/H-6973-2014; Bill, Markus/D-8478-2013 OI Bill, Markus/0000-0001-7002-2174 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A187 EP A187 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400624 ER PT J AU Cummings, PT Vlcek, L Mamontov, E Wesolowski, DJ AF Cummings, Peter T. Vlcek, Lukas Mamontov, Eugene Wesolowski, David J. TI Complex dynamics of water adsorbed on metal oxide surfaces SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Cummings, Peter T.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN USA. [Cummings, Peter T.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. [Vlcek, Lukas; Wesolowski, David J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN USA. [Mamontov, Eugene] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. EM peter.cummings@vanderbilt.edu RI Vlcek, Lukas/N-7090-2013; Mamontov, Eugene/Q-1003-2015; Cummings, Peter/B-8762-2013 OI Vlcek, Lukas/0000-0003-4782-7702; Mamontov, Eugene/0000-0002-5684-2675; Cummings, Peter/0000-0002-9766-2216 NR 3 TC 1 Z9 1 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A200 EP A200 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400649 ER PT J AU Davis, AM Stephan, T Pellin, MJ Veryovkin, IV Savina, MR AF Davis, A. M. Stephan, T. Pellin, M. J. Veryovkin, I. V. Savina, M. R. TI Making CHILI: A progress report SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Davis, A. M.; Stephan, T.; Pellin, M. J.; Veryovkin, I. V.; Savina, M. R.] Chicago Ctr Cosmochem, Chicago, IL USA. [Davis, A. M.; Stephan, T.; Pellin, M. J.] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA. [Davis, A. M.; Pellin, M. J.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Pellin, M. J.; Veryovkin, I. V.; Savina, M. R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. EM a-davis@uchicago.edu RI Pellin, Michael/B-5897-2008 OI Pellin, Michael/0000-0002-8149-9768 NR 4 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A212 EP A212 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400673 ER PT J AU DeAngelis, MT Labotka, TC Finkelstein, DB Cole, DR AF DeAngelis, M. T. Labotka, T. C. Finkelstein, D. B. Cole, D. R. TI An experimental investigation of olivine-fluid interaction as a function of pH and surface area SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [DeAngelis, M. T.; Labotka, T. C.; Finkelstein, D. B.] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA. [Cole, D. R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM mdeangel@utk.edu NR 1 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A214 EP A214 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400678 ER PT J AU DePaolo, DJ Christensen, JN Conrad, ME AF DePaolo, D. J. Christensen, J. N. Conrad, M. E. TI Radiogenic and non-traditional isotopic tracers of subsurface CO2 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [DePaolo, D. J.; Christensen, J. N.; Conrad, M. E.] EO Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [DePaolo, D. J.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM djdepaolo@lbl.gov RI Christensen, John/D-1475-2015 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A225 EP A225 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400699 ER PT J AU DePaolo, DJ AF DePaolo, Donald J. TI Kinetic theory of isotopic and trace element partitioning between calcite and aqueous solution SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [DePaolo, Donald J.] EO Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [DePaolo, Donald J.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM djdepaolo@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A224 EP A224 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400698 ER PT J AU DePaolo, DJ AF DePaolo, Donald J. TI Carbon sequestration geochemistry SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [DePaolo, Donald J.] EO Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [DePaolo, Donald J.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM djdepaolo@lbl.gov NR 0 TC 0 Z9 0 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A224 EP A224 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400697 ER PT J AU Dewers, TA AF Dewers, Thomas A. TI Mechanical-chemical coupling and self-organization in mudstones SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Dewers, Thomas A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM tdewers@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A229 EP A229 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400707 ER PT J AU Ding, M AF Ding, M. TI Subsurface contaminant transport across physical, chemical and mineralogical heterogeneities SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ding, M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM mding@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A234 EP A234 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400718 ER PT J AU Doktycz, MJ Suresh, AK Wang, W Brown, SD Gu, B Allison, DP Joy, DC Moon, JW Phelps, TJ Pelletier, DA AF Doktycz, M. J. Suresh, Anil K. Wang, W. Brown, S. D. Gu, B. Allison, D. P. Joy, D. C. Moon, J. W. Phelps, T. J. Pelletier, D. A. TI Microbial interactions with engineered metal and metal oxide nanoparticles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Doktycz, M. J.; Suresh, Anil K.; Brown, S. D.; Allison, D. P.; Moon, J. W.; Phelps, T. J.; Pelletier, D. A.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Doktycz, M. J.; Joy, D. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci Div, Oak Ridge, TN 37831 USA. [Wang, W.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Allison, D. P.; Joy, D. C.] Univ Tennessee, Knoxville, TN USA. EM doktyczmj@ornl.gov RI Moon, Ji-Won/A-9186-2011; Pelletier, Dale/F-4154-2011; Gu, Baohua/B-9511-2012; Wang, Wei/B-5924-2012; Brown, Steven/A-6792-2011; Doktycz, Mitchel/A-7499-2011 OI Moon, Ji-Won/0000-0001-7776-6889; Gu, Baohua/0000-0002-7299-2956; Brown, Steven/0000-0002-9281-3898; Doktycz, Mitchel/0000-0003-4856-8343 NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A239 EP A239 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400727 ER PT J AU Dontsova, K Steefel, CI Desilets, S Thompson, A Chorover, J AF Dontsova, K. Steefel, C. I. Desilets, S. Thompson, A. Chorover, J. TI Reactive transport modelling of incongruent basalt dissolution in the Biosphere 2 hill-slope experiment SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Dontsova, K.; Chorover, J.] Univ Arizona, B2 Earthsci, Tucson, AZ USA. [Dontsova, K.; Chorover, J.] Univ Arizona, Dep Soil Water & Environm Sci, Tucson, AZ USA. [Steefel, C. I.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. [Desilets, S.] Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA. [Thompson, A.] Univ Georgia, Dept Crop & Soil Sci, Athens, GA 30602 USA. EM dontsova@email.arizona.edu; CISteefel@lbl.gov; seinloth@gmail.com; AaronT@uga.edu; chorover@cals.arizona.edu RI Steefel, Carl/B-7758-2010 NR 1 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A243 EP A243 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400735 ER PT J AU Dos Santos, AM Horita, J Tulk, CA Chakoumakos, BC Polyakov, VB AF Dos Santos, A. M. Horita, J. Tulk, C. A. Chakoumakos, B. C. Polyakov, V. B. TI Combined high-pressure neutron and X-ray diffraction study of H-D substitution effects on brucite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Dos Santos, A. M.; Tulk, C. A.; Chakoumakos, B. C.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Horita, J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Polyakov, V. B.] Russian Acad Sci, Inst Expt Mineral, Moscow 117901, Russia. EM dossantosam@ornl.gov; horitaj@ornl.gov; tulkca@ornl.gov; chakoumakobc@ornl.gov; polyakov@iem.ac.ru RI Polyakov, Veniamin/N-9747-2015; dos Santos, Antonio/A-5602-2016; Chakoumakos, Bryan/A-5601-2016; Tulk, Chris/R-6088-2016 OI Polyakov, Veniamin/0000-0002-6718-580X; dos Santos, Antonio/0000-0001-6900-0816; Chakoumakos, Bryan/0000-0002-7870-6543; Tulk, Chris/0000-0003-3400-3878 NR 0 TC 1 Z9 1 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A244 EP A244 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400738 ER PT J AU Dove, PM De Yoreo, JJ AF Dove, P. M. De Yoreo, J. J. TI Extending BCF theory through nanoscale insights: Kink-limited kinetics of calcite growth and inhibition SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Dove, P. M.] Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA. [De Yoreo, J. J.] Lawrence Livermore Natl Lab, Berkeley, CA 94720 USA. EM dove@vt.edu RI Dove, Patricia/A-7911-2010 NR 0 TC 1 Z9 1 U1 1 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A245 EP A245 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400740 ER PT J AU Druhan, JL Conrad, ME Williams, KH DePaolo, DJ AF Druhan, Jennifer L. Conrad, Mark E. Williams, Kenneth H. DePaolo, Donald J. TI Permeability reduction, calcium and sulfur isotope fractionation during uranium bioremediation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Druhan, Jennifer L.; DePaolo, Donald J.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Conrad, Mark E.; Williams, Kenneth H.; DePaolo, Donald J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM jennydruhan@berkeley.edu RI Druhan, Jennifer/G-2584-2011; Williams, Kenneth/O-5181-2014 OI Williams, Kenneth/0000-0002-3568-1155 NR 2 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A247 EP A247 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400744 ER PT J AU Dutrow, B Foster, CT Gable, C Travis, B AF Dutrow, B. Foster, C. T. Gable, C. Travis, B. TI Time-dependent 3-D modelling of contact-regional metamorphism suggests reactions occur in < 1 Ma SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Dutrow, B.] Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA. [Foster, C. T.] Univ Iowa, Dept Geosci, Iowa City, IA 52242 USA. [Gable, C.; Travis, B.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM dutrow@lsu.edu RI Gable, Carl/B-4689-2011 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A254 EP A254 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400757 ER PT J AU Elias, DA Zane, GM Auer, MA Fields, MW Wall, JD Gorby, YA AF Elias, D. A. Zane, G. M. Auer, M. A. Fields, M. W. Wall, J. D. Gorby, Y. A. TI Can direct extracellular electron transfer occur in the absence of outer membrane cytochromes in Desulfovibrio vulgaris? SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Elias, D. A.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Zane, G. M.; Wall, J. D.] Univ Missouri, Columbia, MO 65211 USA. [Auer, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Fields, M. W.] Montana State Univ, Bozeman, MT 59717 USA. [Gorby, Y. A.] J Craig Venter Inst, San Diego, CA 92121 USA. EM eliasda@ornl.gov; zaneg@missouri.edu; MAuer@lbl.gov; matthew.fields@erc.montana.edu; wallj@missouri.edu; ygorby@jcvi.org RI Elias, Dwayne/B-5190-2011 OI Elias, Dwayne/0000-0002-4469-6391 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A263 EP A263 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400775 ER PT J AU Engle, MA Bern, CR Healy, RW Sams, JI Zupancic, JW Schroeder, KT AF Engle, Mark A. Bern, Carleton R. Healy, Richard W. Sams, James I. Zupancic, John W. Schroeder, Karl T. TI Tracking solutes and water from subsurface drip irrigation application of coalbed methane produced waters SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Engle, Mark A.] US Geol Survey, Reston, VA 20192 USA. [Bern, Carleton R.; Healy, Richard W.] US Geol Survey, Denver, CO 80225 USA. [Sams, James I.; Schroeder, Karl T.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Zupancic, John W.] BeneTerra LLC, Sheridan, WY 82801 USA. EM engle@usgs.gov NR 0 TC 0 Z9 0 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A268 EP A268 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400785 ER PT J AU Erbs, JJ Berquo, T Banerjee, SK Lowry, GV Reinsch, BC Ben Gilbert Penn, RL AF Erbs, Jasmine J. Berquo, Thelma Banerjee, Subir K. Lowry, Gegory V. Reinsch, Brian C. Ben Gilbert Penn, R. Lee TI Reactivity of Ferrihydrite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Erbs, Jasmine J.; Penn, R. Lee] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA. [Berquo, Thelma] Univ Minnesota, Inst Rock Magnetism, Minneapolis, MN 55455 USA. [Banerjee, Subir K.] Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN 55455 USA. [Lowry, Gegory V.; Reinsch, Brian C.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Ben Gilbert] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM erbsj@uwplatt.edu; berquo013@umn.edu; banerjee@umn.edu; glowry@andrew.cmu.edu; breinsch@andrew.cmu.edu; bgilbert@lbl.gov; rleepenn@umn.edu RI Reinsch, Brian/D-8897-2012 OI Reinsch, Brian/0000-0003-1516-3382 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A269 EP A269 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400787 ER PT J AU Fayek, M Anovitz, LM Cole, DR Bostick, DA AF Fayek, M. Anovitz, L. M. Cole, D. R. Bostick, D. A. TI O and H diffusion in uraninite: Implications for fluid-uraninite interactions and nuclear forensics SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fayek, M.] Univ Manitoba, Dept Geol Sci, Winnipeg, MB R3T 2N2, Canada. [Anovitz, L. M.; Cole, D. R.; Bostick, D. A.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM fayek@cc.umanitoba.ca RI Anovitz, Lawrence/P-3144-2016 OI Anovitz, Lawrence/0000-0002-2609-8750 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A282 EP A282 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400813 ER PT J AU Felmy, AR Kwak, JH Hu, JZ Rosso, KM Wang, C Hoyt, DW Ilton, ES Rustad, JR Dixon, DA AF Felmy, A. R. Kwak, J. H. Hu, J. Z. Rosso, K. M. Wang, C. Hoyt, D. W. Ilton, E. S. Rustad, J. R. Dixon, D. A. TI The role of intermediates during metal carbonation of forsterite in wet supercritical CO2 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Felmy, A. R.; Kwak, J. H.; Hu, J. Z.; Rosso, K. M.; Wang, C.; Hoyt, D. W.; Ilton, E. S.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Rustad, J. R.; Dixon, D. A.] Univ Alabama, Tuscaloosa, AL 35487 USA. EM ar.felmy@pnl.gov; rustad.ucdgeology@gmail.com; dadixon@as.ua.edu RI Hu, Jian Zhi/F-7126-2012; Kwak, Ja Hun/J-4894-2014 NR 0 TC 3 Z9 3 U1 1 U2 10 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A284 EP A284 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400818 ER PT J AU Fenter, P Lee, SS Park, C Catalano, J Zhang, Z Sturchio, NC AF Fenter, P. Lee, S. S. Park, C. Catalano, J. Zhang, Z. Sturchio, N. C. TI Imaging interfacial topography and reactivity with X-rays SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fenter, P.; Lee, S. S.; Zhang, Z.] Argonne Natl Lab, Argonne, IL 60439 USA. [Park, C.] Carnegie Inst Washington, HP CAT, Geophys Lab, Argonne, IL USA. [Catalano, J.] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA. [Sturchio, N. C.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL USA. EM fenter@anl.gov RI Lee, Sang Soo/B-9046-2012; Park, Changyong/A-8544-2008; Zhang, Zhan/A-9830-2008 OI Park, Changyong/0000-0002-3363-5788; Zhang, Zhan/0000-0002-7618-6134 NR 3 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A287 EP A287 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400823 ER PT J AU Fessenden, J Guillkerson, K Dobeck, L Rauch, H Spangler, L AF Fessenden, J. Guillkerson, K. Dobeck, L. Rauch, H. Spangler, L. TI Isotope tracing of CO2 seepage: Results from controlled release experiment in Bozeman, Montana SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fessenden, J.] Los Alamos Natl Lab, EES 14, Los Alamos, NM 87545 USA. [Guillkerson, K.; Dobeck, L.; Spangler, L.] Montana State Univ, Bozeman, MT 59717 USA. [Rauch, H.] W Virginia Univ, Morgantown, VA USA. EM julianna@lanl.gov; dobeck@chemistry.montana.edu; henry.rauch@mail.wvu.edu; spangler@montana.edu NR 0 TC 0 Z9 0 U1 1 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A290 EP A290 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400830 ER PT J AU Filley, T Iversen, C Jastrow, J AF Filley, Timothy Iversen, Colleen Jastrow, Julie TI Factors controlling the stabilization of above and belowground plant biopolymers in soil SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Filley, Timothy] Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA. [Iversen, Colleen] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Jastrow, Julie] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A292 EP A292 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400834 ER PT J AU Fitts, JP Chidambaram, D Hennebel, T Taghavi, S Boon, N Verstraete, W van der Lelie, D AF Fitts, J. P. Chidambaram, D. Hennebel, T. Taghavi, S. Boon, N. Verstraete, W. van der Lelie, D. TI Structure-catalytic activity relationship of biogenic Pd nanoparticles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fitts, J. P.; Taghavi, S.; van der Lelie, D.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Chidambaram, D.] Univ Nevada, Reno, NV 89557 USA. [Hennebel, T.; Boon, N.; Verstraete, W.] Univ Ghent, B-9000 Ghent, Belgium. EM fitts@bnl.gov RI Hennebel, Tom/C-2176-2009; Boon, Nico/B-4083-2011; Fitts, Jeffrey/J-3633-2012 OI Hennebel, Tom/0000-0002-8346-5983; Boon, Nico/0000-0002-7734-3103; NR 3 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A296 EP A296 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400842 ER PT J AU Fox, PM Davis, JA Kukkadapu, R AF Fox, Patricia M. Davis, James A. Kukkadapu, Ravi TI Fe(II) uptake and transformation on uranium contaminated sediment from the Rifle IFRC field site SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fox, Patricia M.; Davis, James A.] US Geol Survey, Menlo Pk, CA 94025 USA. [Kukkadapu, Ravi] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. EM pfox@usgs.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A302 EP A302 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400854 ER PT J AU Fulton, JL Kathmann, SM Schenter, GK Bylaska, EJ Bogatko, SA Weare, JH AF Fulton, J. L. Kathmann, S. M. Schenter, G. K. Bylaska, E. J. Bogatko, S. A. Weare, J. H. TI XAFS spectroscopy and molecular dynamics: Aqueous ions and ion pairs under non-ideal conditions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Fulton, J. L.; Kathmann, S. M.; Schenter, G. K.; Bylaska, E. J.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Bogatko, S. A.; Weare, J. H.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. EM john.fulton@pnl.gov RI Schenter, Gregory/I-7655-2014; Bogatko, Stuart/C-8394-2013 OI Schenter, Gregory/0000-0001-5444-5484; Bogatko, Stuart/0000-0001-9759-2580 NR 2 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A311 EP A311 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400871 ER PT J AU Gardiner, JB Stewart, BW Capo, RC Hakala, JA Keating, EH AF Gardiner, J. B. Stewart, B. W. Capo, R. C. Hakala, J. A. Keating, E. H. TI Tracking CO2 migration through a sandstone aquifer using Sr isotopes: Chimay-New Mexico, USA SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gardiner, J. B.; Stewart, B. W.; Capo, R. C.] Univ Pittsburgh, Dept Geol & Planetary Sci, Pittsburgh, PA 15260 USA. [Gardiner, J. B.; Stewart, B. W.; Capo, R. C.; Hakala, J. A.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Keating, E. H.] Los Alamos Natl Labo, Los Alamos, NM 87545 USA. EM jbg10@pitt.edu; bstewart@pitt.edu; rcapo@pitt.edu; jacqueline.hakala@netl.doe.gov; ekeating@lanl.gov NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A320 EP A320 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401015 ER PT J AU Ghose, SK Waychunas, GA Eng, PJ Trainor, TP AF Ghose, Sanjit K. Waychunas, Glenn A. Eng, Peter J. Trainor, Thomas P. TI Structure and reactivity of hydrated goethite (100) interface and Arsenic sorption: CTR and RAXR study SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ghose, Sanjit K.] Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA. [Waychunas, Glenn A.] LBNL, Div Earth Sci, Berkeley, CA 94720 USA. [Eng, Peter J.] Univ Chicago, GSECARS, Chicago, IL 60637 USA. [Trainor, Thomas P.] Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK 99775 USA. EM sghose@bnl.gov; GAWaychunas@lbnl.gov; eng@cars.uchicago.edu; fftpt@uaf.edu NR 1 TC 0 Z9 0 U1 1 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A328 EP A328 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401031 ER PT J AU Gihring, TM Schadt, CW Zhang, G Yang, Z Carroll, S Lowe, K Mehlhorn, TL Jardine, P Watson, D Brooks, SC Wu, W Kostka, JE Overholt, W Green, SJ Zhou, J Zhang, P Von Nostrand, J AF Gihring, T. M. Schadt, C. W. Zhang, G. Yang, Z. Carroll, S. Lowe, K. Mehlhorn, T. L. Jardine, P. Watson, D. Brooks, S. C. Wu, W. Kostka, J. E. Overholt, W. Green, S. J. Zhou, J. Zhang, P. Von Nostrand, J. TI Changes in microbial community structure and activity during amendment with long-term electron donor sources for bioreduction of groundwater contaminants SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gihring, T. M.; Schadt, C. W.; Zhang, G.; Yang, Z.; Carroll, S.; Lowe, K.; Mehlhorn, T. L.; Jardine, P.; Watson, D.; Brooks, S. C.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Wu, W.] Stanford Univ, Stanford, CA 94305 USA. [Kostka, J. E.; Overholt, W.; Green, S. J.] Florida State Univ, Tallahassee, FL 32306 USA. [Zhou, J.; Zhang, P.; Von Nostrand, J.] Univ Oklahoma, Norman, OK 73019 USA. EM schadtcw@ornl.gov RI Green, Stefan/C-8980-2011; Brooks, Scott/B-9439-2012; Schadt, Christopher/B-7143-2008; Watson, David/C-3256-2016 OI Brooks, Scott/0000-0002-8437-9788; Schadt, Christopher/0000-0001-8759-2448; Watson, David/0000-0002-4972-4136 NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A329 EP A329 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401034 ER PT J AU Gilbert, B Katz, J Zhang, H Banfield, J Falcone, R Waychunas, G AF Gilbert, Benjamin Katz, Jordan Zhang, Hengzhong Banfield, Jill Falcone, Roger Waychunas, Glenn TI Observing iron redox dynamics at the nanosecond scale with time-resolved X-ray spectroscopy SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gilbert, Benjamin; Katz, Jordan; Banfield, Jill; Falcone, Roger; Waychunas, Glenn] Lawrence Berkeley Lab, Berkeley, CA USA. [Zhang, Hengzhong; Banfield, Jill] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Falcone, Roger] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM bgilbert@lbl.gov RI Gilbert, Benjamin/E-3182-2010 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A330 EP A330 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401035 ER PT J AU Gilles, MK Moffet, RC Laskin, A AF Gilles, Mary K. Moffet, R. C. Laskin, A. TI Spectro-microscopy of carbonaceous particulates SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gilles, Mary K.; Moffet, R. C.] Lawrence Berkeley Lab, Berkeley, CA 94705 USA. [Laskin, A.] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. EM mkgilles@lbl.gov; rcmoffet@lbl.gov; Alexander.Laskin@pnl.gov NR 2 TC 2 Z9 2 U1 2 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A332 EP A332 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401040 ER PT J AU Gilmour, CC Elias, DA Kucken, A Brown, SD Palumbo, AV Wall, JD AF Gilmour, C. C. Elias, D. A. Kucken, A. Brown, S. D. Palumbo, A. V. Wall, J. D. TI The sulfate-reducing bacterium Desulfovibrio desulfuricans ND132 as a model for understanding bacterial mercury methylation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gilmour, C. C.] Smithsonian Environm Res Ctr, Edgewater, MD 21037 USA. [Elias, D. A.; Brown, S. D.; Palumbo, A. V.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Kucken, A.; Wall, J. D.] Univ Missouri, Dept Biochem, Columbia, MO 65211 USA. EM gilmourc@si.edu RI Palumbo, Anthony/A-4764-2011; Elias, Dwayne/B-5190-2011; Brown, Steven/A-6792-2011 OI Palumbo, Anthony/0000-0002-1102-3975; Elias, Dwayne/0000-0002-4469-6391; Brown, Steven/0000-0002-9281-3898 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A333 EP A333 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401042 ER PT J AU Greathouse, JA Ockwig, NW Cygan, RT AF Greathouse, Jeffery A. Ockwig, Nathan W. Cygan, Randall T. TI Water structure and vibrational properties in fibrous clays SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Greathouse, Jeffery A.; Ockwig, Nathan W.; Cygan, Randall T.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A352 EP A352 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401080 ER PT J AU Gu, B Dong, W Lou, W Wall, NA AF Gu, B. Dong, W. Lou, W. Wall, N. A. TI Effect of natural humic substances on the dissolution and stability of reduced technetium and uranium SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Gu, B.; Dong, W.; Lou, W.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Wall, N. A.] Washington State Univ, Pullman, WA 99164 USA. EM gub1@ornl.gov; nawall@wsu.edu RI Gu, Baohua/B-9511-2012; Dong, Wenming/G-3221-2015 OI Gu, Baohua/0000-0002-7299-2956; Dong, Wenming/0000-0003-2074-8887 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A359 EP A359 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401093 ER PT J AU Guthrie, M Tucker, MG Tulk, CA Santos, AFMD Molaison, J AF Guthrie, M. Tucker, M. G. Tulk, C. A. Santos, A. F. M. D. Molaison, J. TI Neutron diffraction studies of liquids at high pressure SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Guthrie, M.] Carnegie Inst Sci, EFree EFRC, Geophys Lab, Washington, DC 20015 USA. [Tucker, M. G.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. [Tulk, C. A.; Santos, A. F. M. D.; Molaison, J.] ORNL, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM mguthrie@ciw.edu RI Guthrie, Malcolm/K-3099-2012; Tucker, Matt/C-9867-2016; Tulk, Chris/R-6088-2016 OI Tucker, Matt/0000-0002-2891-7086; Tulk, Chris/0000-0003-3400-3878 NR 5 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A368 EP A368 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401111 ER PT J AU Hamm, LM Wallace, AF Dove, PM AF Hamm, L. M. Wallace, A. F. Dove, P. M. TI Impact of carboxylated molecules on cation hydration dynamics and implications for calcification SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA. [Wallace, A. F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM maehamm6@vt.edu RI Dove, Patricia/A-7911-2010 NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A375 EP A375 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401125 ER PT J AU Hammel, M AF Hammel, Michal TI Solution scattering combined with crystallography and computation: Defining dynamic macromolecular structures SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN ID SAXS C1 [Hammel, Michal] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM mhammel@lbl.gov NR 2 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A375 EP A375 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401126 ER PT J AU Han, N Wallace, AF Dove, PM AF Han, N. Wallace, A. F. Dove, P. M. TI Effect of amino acids on energy barriers to silica nucleation and polymerization SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Han, N.; Wallace, A. F.; Dove, P. M.] Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA. [Wallace, A. F.] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA USA. RI Dove, Patricia/A-7911-2010 NR 1 TC 0 Z9 0 U1 1 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A377 EP A377 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401129 ER PT J AU Hay, MB Davis, JA Zachara, JM AF Hay, M. B. Davis, J. A. Zachara, J. M. TI Sorption of uranium on synthetic porous phases as a model for understanding grain-scale diffusion kinetics in contaminated sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hay, M. B.; Davis, J. A.] US Geol Survey, Menlo Pk, CA 94025 USA. [Zachara, J. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM mbhay@usgs.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A388 EP A388 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401151 ER PT J AU Hazen, TC AF Hazen, Terry C. TI Systems biology approach to bioremediation: Omics and hydrobiogeochemical processes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hazen, Terry C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM tchazen@lbl.gov RI Hazen, Terry/C-1076-2012 OI Hazen, Terry/0000-0002-2536-9993 NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A390 EP A390 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401155 ER PT J AU Heal, K Mayes, MA Amonette, JE Phillips, JR Jagadamma, S AF Heal, K. Mayes, M. A. Amonette, J. E. Phillips, J. R. Jagadamma, S. TI Preferential sorption of dissolved organic matter onto mineral soils due to soil type SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Heal, K.] Colorado Coll, Dept Environm Sci, Colorado Springs, CO 80903 USA. [Mayes, M. A.; Phillips, J. R.; Jagadamma, S.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Amonette, J. E.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. EM katherine.heal@coloradocollege.edu; mayesma@ornl.gov; jim.amonette@pnl.gov RI Jagadamma, Sindhu/F-7168-2012; Phillips, Jana/G-4755-2016 OI Phillips, Jana/0000-0001-9319-2336 NR 3 TC 0 Z9 0 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A393 EP A393 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401161 ER PT J AU Hegg, EL Kreuzer, HW AF Hegg, E. L. Kreuzer, H. W. TI A stable isotope-based model of intracellular water dynamics SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hegg, E. L.] Michigan State Univ, E Lansing, MI 48824 USA. [Kreuzer, H. W.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM EricHegg@msu.edu; Helen.Kreuzer@pnl.gov NR 2 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A394 EP A394 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401164 ER PT J AU Higgins, SR Xu, M Cubillas, P Lea, AS Knauss, KG Rosso, KM AF Higgins, Steven R. Xu, Man Cubillas, Pablo Lea, A. Scott Knauss, Kevin G. Rosso, Kevin M. TI Scanning Probe Microscopy and mineral-water interfaces: Have we reached a limit? SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Higgins, Steven R.; Xu, Man] Wright State Univ, Dept Chem, Dayton, OH 45435 USA. [Cubillas, Pablo] Univ Manchester, Sch Chem, Ctr Nanoporous Mat, Manchester, Lancs, England. [Lea, A. Scott] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Knauss, Kevin G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Rosso, Kevin M.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. EM steven.higgins@wright.edu RI knauss, kevin/K-2827-2012 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A404 EP A404 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401184 ER PT J AU Hockaday, WC Gallagher, ME Masiello, CA Baldock, JA Iversen, CM Norby, RJ AF Hockaday, W. C. Gallagher, M. E. Masiello, C. A. Baldock, J. A. Iversen, C. M. Norby, R. J. TI Elevated atmospheric carbon dioxide alters soil biochemical stocks SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hockaday, W. C.; Gallagher, M. E.; Masiello, C. A.] Rice Univ, Dept Earth Sci, Houston, TX 77251 USA. [Baldock, J. A.] CSIRO Land & Water, Glen Osmond, SA 5064, Australia. [Iversen, C. M.; Norby, R. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Iversen, C. M.] Univ Tennessee, Knoxville, TN 37996 USA. EM wch2@rice.edu; Jeff.Baldock@csiro.au; iversencm@ornl.gov; rjn@ornl.gov RI Norby, Richard/C-1773-2012; Gallagher, Morgan/A-5335-2013; Iversen, Colleen/B-8983-2012; Baldock, Jeffrey/G-1362-2010 OI Norby, Richard/0000-0002-0238-9828; Gallagher, Morgan/0000-0002-7971-4537; Baldock, Jeffrey/0000-0002-6428-8555 NR 0 TC 0 Z9 0 U1 0 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A408 EP A408 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401191 ER PT J AU Hohmann, C Morin, G Brown, GE Obst, M Benzerara, K Kappler, A AF Hohmann, Claudia Morin, Guillaume Brown, Gordon E., Jr. Obst, Martin Benzerara, Karim Kappler, Andreas TI Molecular mechanisms of As-binding to biogenic iron(III) (hydr)oxides precipitated by the nitrate-reducing iron(II)-oxidizer Acidovorax sp strain BoFeN1 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hohmann, Claudia; Obst, Martin; Kappler, Andreas] Univ Tubingen, Ctr Appl Geosci, Tubingen, Germany. [Morin, Guillaume; Benzerara, Karim] UPMC, CNRS, Inst Mineral & Phys Milieux Condenses, IMPMC,UMR 7590, Paris, France. [Brown, Gordon E., Jr.] Stanford Univ, Dept Geol & Environm Sci, Surface & Aqueous Geochem Grp, Stanford, CA 94305 USA. [Brown, Gordon E., Jr.] SLAC, Menlo Pk, CA USA. EM andreas.kappler@uni-tuebingen.de RI Kappler, Andreas/G-7221-2016 NR 1 TC 1 Z9 1 U1 2 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A409 EP A409 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401194 ER PT J AU Holliday, K Schmidt, M Stumpf, T AF Holliday, Kiel Schmidt, Moritz Stumpf, Thorsten TI Using time resolved laser spectroscopy to probe apatite containing europium and curium SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Holliday, Kiel; Stumpf, Thorsten] Inst Nukl Entsorgung, D-76344 Eggenstein Leopoldshafen, Germany. [Schmidt, Moritz] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. EM kiel.holliday@kit.edu; chlordioxid@arcor.de; thorsten.stumpf@kit.edu RI Schmidt, Moritz/C-2610-2011 OI Schmidt, Moritz/0000-0002-8419-0811 NR 0 TC 0 Z9 0 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A412 EP A412 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401199 ER PT J AU Horita, J Fayek, M Ripley, EM AF Horita, J. Fayek, M. Ripley, E. M. TI A global survey of oxygen isotopes of uranium ores SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Horita, J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Fayek, M.] Univ Manitoba, Dept Geol Sci, Winnipeg, MB R3T 2N2, Canada. [Ripley, E. M.] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA. EM horitaj@ornl.gov; fayek@cc.umanitoba.ca; ripley@indiana.edu NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A418 EP A418 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401211 ER PT J AU Huang, H Guo, LJ Gaston, D Xu, ZJ Redden, G Fox, D Fujita, Y AF Huang, Hai Guo, Luanjing Gaston, Derek Xu, Zhijie Redden, George Fox, Don Fujita, Yoshiko TI Reactive transport modeling of ureolytic calcite precipitation using a parallel, fully coupled approach SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Huang, Hai; Guo, Luanjing; Gaston, Derek; Xu, Zhijie; Redden, George; Fox, Don; Fujita, Yoshiko] Idaho Natl Lab, Idaho Falls, ID USA. EM hai.huang@inl.gov; luanjing.guo@inl.gov; derek.gaston@inl.gov; zhijie.xu@inl.gov; george.redden@inl.gov; don.fox@inl.gov; yoshiko.fujita@inl.gov RI Xu, Zhijie/A-1627-2009; Fujita, Yoshiko/S-2007-2016 OI Xu, Zhijie/0000-0003-0459-4531; Fujita, Yoshiko/0000-0002-4472-4102 NR 0 TC 0 Z9 0 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A427 EP A427 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401230 ER PT J AU Hubbard, SS Watson, D Baker, GS Chen, J Kowalsky, M Gasperikova, E Gaines, DB Smith, M Brooks, S AF Hubbard, S. S. Watson, D. Baker, G. S. Chen, J. Kowalsky, M. Gasperikova, E. Gaines, D. B. Smith, M. Brooks, S. TI Hydrogeophysical quantification of plume-scale flow architecture and recharge processes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Hubbard, S. S.; Chen, J.; Kowalsky, M.; Gasperikova, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Watson, D.; Brooks, S.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Baker, G. S.; Gaines, D. B.; Smith, M.] Univ Tennessee, Knoxville, TN 37996 USA. EM sshubbard@lbl.gov RI Brooks, Scott/B-9439-2012; Gasperikova, Erika/D-1117-2015 OI Brooks, Scott/0000-0002-8437-9788; Gasperikova, Erika/0000-0003-1553-4569 NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A433 EP A433 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401241 ER PT J AU Ilton, ES Kerisit, SN Felmy, AR AF Ilton, Eugene S. Kerisit, Sebastien N. Felmy, Andrew R. TI Incorporation of uranium by oxides and phyllosilicates: Effects on redox and retention SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ilton, Eugene S.; Kerisit, Sebastien N.; Felmy, Andrew R.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM eugene.ilton@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A444 EP A444 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401458 ER PT J AU Jackson, WA Rao, B Rajagopolan, S Bohlke, JK Hatzinger, PB Sturchio, N Gu, BH Betancourt, J Andraski, B Stonestrom, D Orris, G Eckardt, F AF Jackson, W. Andrew Rao, Balaji Rajagopolan, Srinath Boehlke, J. K. Hatzinger, Paul B. Sturchio, Neil Gu, Baohua Betancourt, Julio Andraski, Brian Stonestrom, David Orris, Greta Eckardt, Frank TI Relation between NO3- and ClO4- occurence in the environment SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Jackson, W. Andrew; Rao, Balaji; Rajagopolan, Srinath; Eckardt, Frank] Texas Tech Univ, Lubbock, TX 79409 USA. [Boehlke, J. K.] US Geol Survey, Reston, VA 22092 USA. [Sturchio, Neil] Univ Illinois, Chicago, IL USA. [Gu, Baohua] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Betancourt, Julio; Orris, Greta] US Geol Survey, Tucson, AZ USA. [Andraski, Brian] US Geol Survey, Carson City, NV USA. [Stonestrom, David] US Geol Survey, Menlo Pk, CA 94025 USA. Univ Cape Town, ZA-7700 Rondebosch, South Africa. EM andrew.jackson@ttu.edu; balaji.rao@ttu.edu; rs1979@gmail.com; jkbohlke@usgs.gov; paul.hatzinger@shawgrp.com; sturchio@uic.edu; gub1@ornl.gov; jlbetanc@usgs.gov; andraski@usgs.gov; Dastones@usgs.gov; greta@usgs.gov; frank.eckardt@uct.ac.za RI Stonestrom, David/E-9125-2011; Gu, Baohua/B-9511-2012; Jackson, William/B-8999-2009; Eckardt, Frank/N-3682-2015 OI Stonestrom, David/0000-0001-7883-3385; Gu, Baohua/0000-0002-7299-2956; Eckardt, Frank/0000-0003-0200-7110 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A451 EP A451 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401471 ER PT J AU Jani, RB Colberg, PJS Eggleston, CM Shi, L Reardon, CJ AF Jani, R. B. Colberg, P. J. S. Eggleston, C. M. Shi, L. Reardon, C. J. TI Microbial fuel cell study of the role of OmcA and MtrC in electron transfer from Shewanella oneidensis to oxide electrodes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Jani, R. B.; Eggleston, C. M.] Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA. [Colberg, P. J. S.] Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA. [Shi, L.; Reardon, C. J.] Pacific NW Natl Lab, Richland, WA 99354 USA. EM carrick@uwyo.edu NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A457 EP A457 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401484 ER PT J AU Jansik, DP Wellman, DM Cordova, EA Wildenschild, D AF Jansik, D. P. Wellman, D. M. Cordova, E. A. Wildenschild, D. TI Impact of mobile-immobile water domains on the retention of Technetium (Tc-99) in unsaturated soils SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Jansik, D. P.; Wellman, D. M.; Cordova, E. A.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Jansik, D. P.; Wildenschild, D.] Oregon State Univ, Corvallis, OR 97330 USA. EM danielle.jansik@pnl.gov NR 0 TC 0 Z9 0 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A459 EP A459 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401488 ER PT J AU Jin, LX Rother, G Cole, D Brantley, S AF Jin, Lixin Rother, Gernot Cole, Dave Brantley, Susan TI How pores grow in shale during rock-water interaction: A SANS/USANS study SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Jin, Lixin] Ctr Environm Kinet Anal, University Pk, PA 16803 USA. [Rother, Gernot; Cole, Dave] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM luj10@psu.edu RI Rother, Gernot/B-7281-2008 OI Rother, Gernot/0000-0003-4921-6294 NR 0 TC 1 Z9 1 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A469 EP A469 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401508 ER PT J AU Johnson, T Versteeg, R Day-Lewis, F Wright, K Major, W Lane, J AF Johnson, Tim Versteeg, Roelof Day-Lewis, Fred Wright, Karen Major, William Lane, John TI Electrical geophysical and geochemical monitoring of in situ enhanced bioremediation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Johnson, Tim; Versteeg, Roelof; Wright, Karen] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Day-Lewis, Fred; Lane, John] US Geol Survey, Storrs, CT 06269 USA. [Major, William] NFESC, Port Hueneme, CA 93043 USA. NR 0 TC 1 Z9 1 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A474 EP A474 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401518 ER PT J AU Johs, A Shi, LA Droubay, T Ankner, JF Liang, L AF Johs, Alexander Shi, Liang Droubay, Timothy Ankner, John F. Liang, Liyuan TI Structure of bacterial multiheme cytochromes at the microbial-mineral interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Johs, Alexander; Liang, Liyuan] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Shi, Liang; Droubay, Timothy] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ankner, John F.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM johsa@ornl.gov RI Johs, Alexander/F-1229-2011; Liang, Liyuan/O-7213-2014 OI Johs, Alexander/0000-0003-0098-2254; Liang, Liyuan/0000-0003-1338-0324 NR 3 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A476 EP A476 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401521 ER PT J AU Jun, YS Waychunas, GA Lee, B AF Jun, Young-Shin Waychunas, Glenn A. Lee, Byeongdu TI Surface-mediated nucleation and growth of Iron oxides SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Jun, Young-Shin] Washington Univ, St Louis, MO 63130 USA. [Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Lee, Byeongdu] Argonne Natl Lab, Argonne, IL 60439 USA. EM ysjun@seas.wustl.edu; GAWaychunas@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A485 EP A485 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401540 ER PT J AU Kaplan, DI Brinkmeyer, R Denham, ME Noonkester, JV Roberts, KA Schwehr, KA Vangelas, KM Yeager, CM Zhang, S Santschi, PH AF Kaplan, D. I. Brinkmeyer, R. Denham, M. E. Noonkester, J. V. Roberts, K. A. Schwehr, K. A. Vangelas, K. M. Yeager, C. M. Zhang, S. Santschi, P. H. TI Groundwater Iodine-129 speciation and its causes for release from a subsurface burial basin SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kaplan, D. I.; Denham, M. E.; Noonkester, J. V.; Roberts, K. A.; Vangelas, K. M.; Yeager, C. M.] Savannah River Natl Lab, Aiken, SC USA. [Brinkmeyer, R.; Schwehr, K. A.; Zhang, S.; Santschi, P. H.] Texas A&M Univ, Galveston, TX 77551 USA. EM daniel.kaplan@srnl.doe.gov RI Santschi, Peter/D-5712-2012 NR 0 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A495 EP A495 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401559 ER PT J AU Keiluweit, M Nico, PS Zeglin, LH Pett-Ridge, J Weber, P Myrold, DD Kleber, M AF Keiluweit, M. Nico, P. S. Zeglin, L. H. Pett-Ridge, J. Weber, P. Myrold, D. D. Kleber, M. TI C and N dynamics in soil microstructures: A joined STXM/NEXAFS and NanoSIMS approach SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Keiluweit, M.; Zeglin, L. H.; Myrold, D. D.; Kleber, M.] Oregon State Univ, Dept Crop & Soil Sci, Div Soils, Corvallis, OR 97331 USA. [Nico, P. S.] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. [Pett-Ridge, J.; Weber, P.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA USA. RI Myrold, David/E-1813-2011; Nico, Peter/F-6997-2010 OI Myrold, David/0000-0001-6418-226X; Nico, Peter/0000-0002-4180-9397 NR 0 TC 0 Z9 0 U1 2 U2 25 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A502 EP A502 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401574 ER PT J AU Kemner, KM Boyanov, MI O'Loughlin, EJ Sholto-Douglas, D Skinner, K Lai, B Kelly, SD Cook, R Carpenter, E Nealson, KH AF Kemner, K. M. Boyanov, M. I. O'Loughlin, E. J. Sholto-Douglas, D. Skinner, K. Lai, B. Kelly, S. D. Cook, R. Carpenter, E. Nealson, K. H. TI Redox transformations of uranium near the mineral-microbe interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kemner, K. M.; Boyanov, M. I.; O'Loughlin, E. J.; Sholto-Douglas, D.; Skinner, K.; Lai, B.; Kelly, S. D.; Cook, R.] Argonne Natl Lab, Argonne, IL 60439 USA. [Carpenter, E.] Virginia Commonwealth Univ, Richmond, VA 23284 USA. [Nealson, K. H.] Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA. EM kemner@anl.gov; ecarpenter2@vcu.edu; knealson@wrigley.usc.edu RI Carpenter, Everett/A-2797-2010 OI Carpenter, Everett/0000-0002-3497-0318 NR 0 TC 0 Z9 0 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A505 EP A505 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401580 ER PT J AU Kerisit, S Rosso, KM AF Kerisit, S. Rosso, K. M. TI Dynamics of interfacial electron transfer: Implications for biogeochemical reactions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kerisit, S.; Rosso, K. M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. EM sebastien.kerisit@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A507 EP A507 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401584 ER PT J AU Kersting, AB Zavarin, M Dai, ZR Felmy, A Kips, RA Moser, D Powell, BA Tinnacher, R Zhao, PH AF Kersting, Annie B. Zavarin, Mavrik Dai, Zurong Felmy, Andy Kips, Ruth A. Moser, Duane Powell, Brian A. Tinnacher, Ruth Zhao, Pihong TI Subsurface transport of Pu on nanominerals: Teasing out biogeochemical controls in field environments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN ID PLUTONIUM; WATER C1 [Kersting, Annie B.; Zavarin, Mavrik; Dai, Zurong; Kips, Ruth A.; Zhao, Pihong] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94550 USA. [Felmy, Andy] Pacific NW Natl Lab, Richland, WA 99352 USA. [Moser, Duane] Desert Res Inst, Las Vegas, NV 89119 USA. [Powell, Brian A.] Clemson Univ, Clemson, SC 29625 USA. EM Kersting1@LLNL.gov RI Powell, Brian /C-7640-2011; Tinnacher, Ruth/I-4845-2015 OI Powell, Brian /0000-0003-0423-0180; NR 3 TC 0 Z9 0 U1 2 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A508 EP A508 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401586 ER PT J AU Kharaka, YK Campbell, P Thorden, JJ Thomas, PB Cole, DR Hovorka, SD AF Kharaka, Y. K. Campbell, P. Thorden, J. J. Thomas, P. B. Cole, D. R. Hovorka, S. D. TI Geologic storage of carbon dioxide: Potential environmental impacts of CO2-organic interactions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kharaka, Y. K.; Campbell, P.; Thorden, J. J.; Thomas, P. B.] USGS, Menlo Pk, CA USA. [Cole, D. R.] ORNL, Oak Ridge, TN USA. [Hovorka, S. D.] UT, BEG, Austin, TX USA. NR 0 TC 3 Z9 3 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A511 EP A511 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401591 ER PT J AU Klug, DD Tse, JS Zhao, JY Sturhahn, W Alp, EE Tulk, CA AF Klug, D. D. Tse, J. S. Zhao, J. Y. Sturhahn, W. Alp, E. E. Tulk, C. A. TI Structures and dynamics of dense clathrate hydrates SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Klug, D. D.] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada. [Tse, J. S.] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada. [Zhao, J. Y.; Sturhahn, W.; Alp, E. E.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Zhao, J. Y.; Sturhahn, W.; Alp, E. E.] Oak Ridge Natl Lab, Div Neutron Sci, Oak Ridge, TN 37831 USA. RI Tulk, Chris/R-6088-2016 OI Tulk, Chris/0000-0003-3400-3878 NR 4 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A525 EP A525 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401619 ER PT J AU Kohli, V Fenter, P Libera, JA Elam, JW Liu, C Rosenqvist, J Bedzyk, MJ Machesky, MJ Wesolowski, DJ AF Kohli, V. Fenter, P. Libera, J. A. Elam, J. W. Liu, C. Rosenqvist, J. Bedzyk, M. J. Machesky, M. J. Wesolowski, D. J. TI Imaging ion adsorption with total external reflection X-ray standing waves SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kohli, V.; Bedzyk, M. J.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Kohli, V.; Fenter, P.; Libera, J. A.; Elam, J. W.; Liu, C.] Argonne Natl Lab, Argonne, IL 60439 USA. [Rosenqvist, J.] Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England. [Machesky, M. J.] Illinois State Water Survey, Champaign, IL 61820 USA. [Wesolowski, D. J.] Oak Ridge Natl Lab, Oak Ridge, TN USA. EM fenter@anl.gov RI Bedzyk, Michael/B-7503-2009; Bedzyk, Michael/K-6903-2013 NR 2 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A527 EP A527 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401624 ER PT J AU Kumar, N Kent, PRC Bandura, A Kubicki, JD Sofo, JO AF Kumar, Nitin Kent, Paul R. C. Bandura, Andrei Kubicki, James D. Sofo, Jorge O. TI Comparison of vibrations of water on rutile and cassiterite surface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kumar, Nitin; Sofo, Jorge O.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. [Kumar, Nitin; Sofo, Jorge O.] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. [Kent, Paul R. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. [Kent, Paul R. C.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37830 USA. [Bandura, Andrei] St Petersburg State Univ, St Petersburg 198504, Russia. [Kubicki, James D.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA. EM sofo@psu.edu RI Kent, Paul/A-6756-2008; Sofo, Jorge/J-4415-2012; Sofo, Jorge/B-4344-2014; Kumar, Nitin/M-5778-2014; Kubicki, James/I-1843-2012 OI Kent, Paul/0000-0001-5539-4017; Sofo, Jorge/0000-0003-4513-3694; Sofo, Jorge/0000-0003-4513-3694; Kumar, Nitin/0000-0002-1064-1659; Kubicki, James/0000-0002-9277-9044 NR 3 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A546 EP A546 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401662 ER PT J AU Kuo, IFW AF Kuo, I-Feng W. TI First principles simulations of liquid-vapor interfaces: Structures, dynamics and chemical reactivity SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Kuo, I-Feng W.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA. EM kuo2@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A547 EP A547 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401664 ER PT J AU Labotka, TC Cole, DR Fayek, MJ Chacko, T AF Labotka, T. C. Cole, D. R. Fayek, M. J. Chacko, T. TI An experimental study of the diffusion of C and O in calcite in mixed CO2-H2O fluid SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Labotka, T. C.] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA. [Cole, D. R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Fayek, M. J.] Univ Manitoba, Dept Geol Sci, Winnipeg, MB R3T 2N2, Canada. [Chacko, T.] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada. NR 0 TC 1 Z9 1 U1 2 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A553 EP A553 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401675 ER PT J AU Lai, B AF Lai, B. TI Bacterial biogeochemistry revealed by submicron X-ray fluorescence spectroscopy SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lai, B.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. EM blai@aps.anl.gov NR 4 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A555 EP A555 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401679 ER PT J AU Lee, SS Park, C Sturchio, NC Nagy, KL Fenter, P AF Lee, S. S. Park, C. Sturchio, N. C. Nagy, K. L. Fenter, P. TI In situ observations of competitive adsorption of monovalent ions at the muscovite (001)-water interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lee, S. S.; Park, C.; Fenter, P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Sturchio, N. C.; Nagy, K. L.] Univ Illinois, Chicago, IL 60607 USA. EM sslee@anl.gov RI Lee, Sang Soo/B-9046-2012; Park, Changyong/A-8544-2008 OI Park, Changyong/0000-0002-3363-5788 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A575 EP A575 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401718 ER PT J AU Lewis, ER AF Lewis, Ernie R. TI Production of primary particles at the sea surface that can function as cloud condensation nuclei SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lewis, Ernie R.] Brookhaven Natl Lab, Dept Environm Sci, Div Atmospher Sci, Upton, NY 11973 USA. EM elewis@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A586 EP A586 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401741 ER PT J AU Lilley, MS Powell, BA Kaplan, DI AF Lilley, Michael S. Powell, Brian A. Kaplan, Daniel I. TI Sorption of Np, Pu, Tc, and I to saltstone and cement formulations under oxidizing and reducing conditions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lilley, Michael S.; Powell, Brian A.] Clemson Univ, Dept Environm Engn & Earth Sci, Clemson, SC USA. [Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC USA. RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A605 EP A605 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401778 ER PT J AU Liu, J Pearce, CI Qafoku, O Arenholz, E Heald, S Peretyazhko, T Rosso, KM AF Liu, J. Pearce, C. I. Qafoku, O. Arenholz, E. Heald, S. Peretyazhko, T. Rosso, K. M. TI Reduction of contaminant Tc(VII) by magnetite (Fe3O4) and titanomagnetite (Fe3-xTixO4) nanoparticles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Liu, J.; Pearce, C. I.; Qafoku, O.; Peretyazhko, T.; Rosso, K. M.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Heald, S.] Argonne Natl Lab, Argonne, IL 60439 USA. EM juan.liu@pnl.gov RI Liu, Juan/D-2273-2013 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A615 EP A615 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401798 ER PT J AU Looney, BB Denham, ME AF Looney, Brian B. Denham, Miles E. TI Better lighting through geochemhistory SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Looney, Brian B.; Denham, Miles E.] Savannah River Natl Lab, Aiken, SC 29803 USA. EM brian02.looney@srnl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A630 EP A630 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401829 ER PT J AU Lord, OT Walter, MJ Dobson, DP Armstrong, L Clark, SM Kleppe, A AF Lord, O. T. Walter, M. J. Dobson, D. P. Armstrong, L. Clark, S. M. Kleppe, A. TI The melting curve of FeSi to 150 GPa: Implications for D" SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lord, O. T.; Walter, M. J.; Armstrong, L.] Univ Bristol, Dept Earth Sci, Bristol BS8 1TH, Avon, England. [Dobson, D. P.] UCL, Dept Earth Sci, London, England. [Clark, S. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Kleppe, A.] Diamond Light Source Ltd, Didcot, Oxon, England. RI Lord, Oliver/D-4663-2014 OI Lord, Oliver/0000-0003-0563-1293 NR 4 TC 0 Z9 0 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A631 EP A631 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401830 ER PT J AU Loring, JS Wang, Z Thompson, CJ Joly, AG Sklarew, DS Rosso, KM Felmy, AR AF Loring, J. S. Wang, Z. Thompson, C. J. Joly, A. G. Sklarew, D. S. Rosso, K. M. Felmy, A. R. TI Carbonation of forsterite exposed to water-saturated supercritical carbon dioxide SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Loring, J. S.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM john.loring@pnl.gov RI Wang, Zheming/E-8244-2010 OI Wang, Zheming/0000-0002-1986-4357 NR 0 TC 1 Z9 1 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A631 EP A631 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401831 ER PT J AU Lu, P Liu, FY Hedges, S Griffith, C Soong, Y Zhu, C AF Lu, Peng Liu, Faye Hedges, Sheila Griffith, Craig Soong, Yee Zhu, Chen TI Experiments of CO2-brine-feldspar/sandstone/shale interactions: Implications for geological carbon sequestration SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lu, Peng; Liu, Faye; Zhu, Chen] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA. [Hedges, Sheila; Griffith, Craig; Soong, Yee] US DOE, Natl Energy Technol Lab, Pittsburgh, PA USA. EM pelu@indiana.edu RI Liu, Yifei/J-9530-2015 NR 1 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A636 EP A636 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401840 ER PT J AU Lvov, SN Fedkin, M Rodriguez-Santiago, V Vidojkovic, S Wesolowski, DJ AF Lvov, S. N. Fedkin, M. Rodriguez-Santiago, V. Vidojkovic, S. Wesolowski, D. J. TI Protonation enthalpy of magnetite from high temperture electrophoresis SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Lvov, S. N.; Fedkin, M.; Rodriguez-Santiago, V.; Vidojkovic, S.] Penn State Univ, University Pk, PA 16802 USA. [Wesolowski, D. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM lvov@psu.edu; wesolowskid@ornl.gov NR 5 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A647 EP A647 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941401863 ER PT J AU Machesky, ML Predota, M Vlcek, L Rosenqvist, J Skelton, A Cummings, PT Ridley, MK Kubicki, JD Sofo, JO Kumar, N Bandura, AV Wesolowski, DJ AF Machesky, M. L. Predota, M. Vlcek, L. Rosenqvist, J. Skelton, A. Cummings, P. T. Ridley, M. K. Kubicki, J. D. Sofo, J. O. Kumar, N. Bandura, A. V. Wesolowski, D. J. TI Towards an accurate prediction of surface protonation equilibria: Quantifying interfacial structure via the bond valence-MUSIC model framework SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Machesky, M. L.] Univ Illinois, Champaign, IL 61820 USA. [Predota, M.] Univ S Bohemia, Ceske Budejovice 37005, Czech Republic. [Vlcek, L.; Wesolowski, D. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Rosenqvist, J.] Univ Leeds, Leeds LS2 9JT, W Yorkshire, England. [Skelton, A.; Cummings, P. T.] Vanderbilt Univ, Nashville, TN 37235 USA. [Ridley, M. K.] Texas Tech Univ, Lubbock, TX 79409 USA. [Kubicki, J. D.; Sofo, J. O.; Kumar, N.] Penn State Univ, State Coll, University Pk, PA 16802 USA. [Bandura, A. V.] St Petersburg State Univ, St Petersburg, Russia. EM machesky@illinois.edu RI Predota, Milan/A-2256-2009; Sofo, Jorge/J-4415-2012; Vlcek, Lukas/N-7090-2013; Sofo, Jorge/B-4344-2014; Cummings, Peter/B-8762-2013; Kubicki, James/I-1843-2012 OI Predota, Milan/0000-0003-3902-0992; Sofo, Jorge/0000-0003-4513-3694; Vlcek, Lukas/0000-0003-4782-7702; Sofo, Jorge/0000-0003-4513-3694; Cummings, Peter/0000-0002-9766-2216; Kubicki, James/0000-0002-9277-9044 NR 0 TC 0 Z9 0 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A652 EP A652 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402008 ER PT J AU Magrini, K Davis, M Follett, R Hoover, C Evans, R AF Magrini, K. Davis, M. Follett, R. Hoover, C. Evans, R. TI Rapid identification and quantification of soil organic carbon forms using pyrolysis molecular beam mass spectrometry SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Magrini, K.; Davis, M.; Evans, R.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Follett, R.] USDA ARS, Ft Collins, CO 80526 USA. [Hoover, C.] US Forest Serv, NE Res Stn, Durham, NH 03824 USA. EM kim.magrini@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A657 EP A657 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402018 ER PT J AU Maher, K Steefel, CI AF Maher, K. Steefel, C. I. TI Biogeochemical reaction networks involved in weathering processes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Maher, K.] Dept Geog & Environm Sci, Stanford, CA 94305 USA. [Steefel, C. I.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM kmaher@stanford.edu; CISteefel@lbl.gov RI Steefel, Carl/B-7758-2010 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A658 EP A658 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402019 ER PT J AU Mamontov, E Vlcek, L Wesolowski, DJ Cole, DR Anovitz, LM Wang, W Cummings, PT AF Mamontov, E. Vlcek, L. Wesolowski, D. J. Cole, D. R. Anovitz, L. M. Wang, W. Cummings, P. T. TI Pico- to nano-second dynamics of water on mineral surfaces SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Mamontov, E.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Vlcek, L.; Wesolowski, D. J.; Cole, D. R.; Anovitz, L. M.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Wang, W.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Cummings, P. T.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Cummings, P. T.] Vanderbilt Univ, Dept Chem Engn, Nashville, TN 37235 USA. EM mamontove@ornl.gov RI Wang, Wei/B-5924-2012; Vlcek, Lukas/N-7090-2013; Mamontov, Eugene/Q-1003-2015; Cummings, Peter/B-8762-2013; Anovitz, Lawrence/P-3144-2016 OI Vlcek, Lukas/0000-0003-4782-7702; Mamontov, Eugene/0000-0002-5684-2675; Cummings, Peter/0000-0002-9766-2216; Anovitz, Lawrence/0000-0002-2609-8750 NR 3 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A662 EP A662 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402028 ER PT J AU Mamontov, E Chathoth, SM Melnichenko, YB AF Mamontov, E. Chathoth, S. M. Melnichenko, Y. B. TI Diffusion of methane in nano-porous carbon aerogel probed by quasielastic neutron scattering SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Mamontov, E.; Chathoth, S. M.; Melnichenko, Y. B.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM mavilachaths@ornl.gov RI Mavila Chathoth, Suresh/E-7560-2010; Mamontov, Eugene/Q-1003-2015 OI Mavila Chathoth, Suresh/0000-0002-4120-6959; Mamontov, Eugene/0000-0002-5684-2675 NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A662 EP A662 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402027 ER PT J AU Marcus, MA Fakra, SC Toner, BM Horn, G Edwards, KJ AF Marcus, Matthew A. Fakra, Sirine C. Toner, Brandy M. Horn, Gregory Edwards, Katrina J. TI Going deep: Elemental distribution, speciation and redox states in a marine ferromanganese nodule SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Marcus, Matthew A.; Fakra, Sirine C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Toner, Brandy M.] Univ Minnesota, Dept Soil Water & Climate, St Paul, MN 55108 USA. [Horn, Gregory; Edwards, Katrina J.] Univ So Calif, Dept Biol Sci, Los Angeles, CA 90089 USA. EM mamarcus@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A668 EP A668 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402040 ER PT J AU Marshall, MJ Dohnalkova, AC Arey, BW Williams, KH Fredrickson, JK AF Marshall, M. J. Dohnalkova, A. C. Arey, B. W. Williams, K. H. Fredrickson, J. K. TI Visualization of hydrated bacterial structures by complementary electron microscopy techniques SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Marshall, M. J.; Dohnalkova, A. C.; Arey, B. W.; Fredrickson, J. K.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Williams, K. H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM matt.marshall@pnl.gov RI Williams, Kenneth/O-5181-2014 OI Williams, Kenneth/0000-0002-3568-1155 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A671 EP A671 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402045 ER PT J AU Matzel, J Dobrzhinetskaya, L Weber, PK Hutcheon, I Wirth, R Yang, J Green, H AF Matzel, J. Dobrzhinetskaya, L. Weber, P. K. Hutcheon, I. Wirth, R. Yang, J. Green, H., II TI Nanosims studies of delta N-15 and delta C-13 in nitrides inclusions in coesite from a Tibetan massive cromitite ore SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Matzel, J.; Weber, P. K.; Hutcheon, I.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Dobrzhinetskaya, L.; Green, H., II] Univ Calif Riverside, Riverside, CA 92521 USA. [Wirth, R.] GeoForschungsZentrum, D-14473 Potsdam, Germany. [Yang, J.] Inst Geol, Beijing 100037, Peoples R China. EM matzel2@llnl.gov NR 4 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A680 EP A680 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402064 ER PT J AU McKinley, JP Zachara, JM Resch, CT Girvin, DC Kaluzny, RM Vermeul, VR Christensen, JN AF McKinley, James P. Zachara, John M. Resch, Charles T. Girvin, Donald. C. Kaluzny, Rachael M. Vermeul, Vince R. Christensen, John N. TI The deep vadoze zone as a source of uranium to the near-shore aquifer at the Hanford Site, Washington SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [McKinley, James P.; Zachara, John M.; Resch, Charles T.; Girvin, Donald. C.; Vermeul, Vince R.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Kaluzny, Rachael M.] Montana State Univ, Bozeman, MT 59715 USA. [Christensen, John N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM james.mckinley@pnl.gov; john.zachara@pnl.gov; tom.resch@pnl.gov; donkayak@clearwire.net; rachael.kaluzny@gmail.com; vince.vermeul@pnl.gov; jnchristensen@lbl.gov RI Christensen, John/D-1475-2015 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A689 EP A689 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402082 ER PT J AU Melnichenko, YB He, LL Mastalerz, M AF Melnichenko, Yuri B. He, Lilin Mastalerz, Maria TI Pore size specific characterization of the adsorption of CO2 and methane in coal using SANS SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Melnichenko, Yuri B.; He, Lilin] ORNL, Neutron Scattering Sci Div, Oak Ridge, TN 37931 USA. [Mastalerz, Maria] Indiana Univ, Indiana Geol Survey, Bloomington, IN 47405 USA. NR 1 TC 2 Z9 2 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A697 EP A697 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402098 ER PT J AU Miller, C Gu, B Liang, L AF Miller, C. Gu, B. Liang, L. TI Complexation and reactivity of mercury with natural organic matter (NOM) and particles in East Fork Poplar Creek in Oak Ridge, Tennessee, USA SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Miller, C.; Gu, B.; Liang, L.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. EM millercl@ornl.gov RI Gu, Baohua/B-9511-2012; Liang, Liyuan/O-7213-2014 OI Gu, Baohua/0000-0002-7299-2956; Liang, Liyuan/0000-0003-1338-0324 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A709 EP A709 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402122 ER PT J AU Miller, S Lipton, M Summers, A AF Miller, S. Lipton, M. Summers, A. TI Mercury toxicity and mercury resistance in a bacterial model system SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Miller, S.] Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94143 USA. [Lipton, M.] Pacific NW Natl Lab, DOE, Environm Mol Sci Lab, Richland, WA 99352 USA. [Summers, A.] Univ Georgia, Dept Microbiol, Athens, GA 30602 USA. EM smiller@cgl.ucsf.edu; mary.lipton@pnl.gov; summers@uga.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A710 EP A710 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402123 ER PT J AU Miller, TJ Powell, BA Kaplan, DI AF Miller, Todd J. Powell, Brian A. Kaplan, Daniel I. TI A simplified quantitative and conceptual model of Np sorption to natural sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Miller, Todd J.; Powell, Brian A.] Clemson Univ, Clemson, SC 29625 USA. [Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC 29803 USA. EM tjmille@clemson.edu RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 2 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A710 EP A710 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402124 ER PT J AU Mishra, B Boyanov, M O'Loughlin, E Kemner, K AF Mishra, Bhoopesh Boyanov, Maxim O'Loughlin, Edward Kemner, Ken TI Molecular scale transformations of Hg(II) during coupled biotic and abiotic processes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Mishra, Bhoopesh; Boyanov, Maxim; O'Loughlin, Edward; Kemner, Ken] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. EM bmishra@anl.gov; mboyanov@anl.gov; OLoughlin@anl.gov; kemner@anl.gov NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A712 EP A712 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402128 ER PT J AU Molz, F Demirkanli, I Thompson, S Kaplan, D Fjeld, R AF Molz, Fred Demirkanli, Inci Thompson, Shannon Kaplan, Daniel Fjeld, Robert TI Overview of Plutonium (Pu) transport in the vadose zone: Field experiments, mathematical modeling, soil-plant interactions and future research questions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Molz, Fred; Demirkanli, Inci; Thompson, Shannon; Fjeld, Robert] Clemson Univ, Clemson, SC 29625 USA. [Kaplan, Daniel] Savannah River Natl Lab, Aiken, SC 29801 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A719 EP A719 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402142 ER PT J AU Monger, HC Cole, DR AF Monger, H. C. Cole, D. R. TI Pedogenic carbonate in the global carbon cycle: Active sink or long-term reservoir? SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Monger, H. C.] New Mexico State Univ, Las Cruces, NM 88003 USA. [Cole, D. R.] Oak Ridge Natl Lab, Div Chem Sci, Knoxville, TN 37932 USA. EM cmonger@nmsu.edu; coledr@ornl.gov NR 2 TC 0 Z9 0 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A721 EP A721 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402146 ER PT J AU Moran, JJ Hill, EA Hegg, EL Kreuzer, HW AF Moran, J. J. Hill, E. A. Hegg, E. L. Kreuzer, H. W. TI Using hydrogen isotopes to assess proton flux during biological hydrogen production: Part 2 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Moran, J. J.; Hill, E. A.; Kreuzer, H. W.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Hegg, E. L.] Michigan State Univ, E Lansing, MI 48824 USA. EM James.Moran@pnl.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A724 EP A724 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402152 ER PT J AU Morrow, CP Olsen, AA Kubicki, JD Mueller, KT Brantley, SL Cole, DR AF Morrow, C. P. Olsen, A. A. Kubicki, J. D. Mueller, K. T. Brantley, S. L. Cole, D. R. TI Investigating silicate mineral dissolution with computational tools while crossing scales SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Morrow, C. P.; Kubicki, J. D.; Mueller, K. T.; Brantley, S. L.] Penn State Univ, CEKA, University Pk, PA 16802 USA. [Olsen, A. A.] Univ Maine, Dept Earth Sci, Orono, ME 04469 USA. [Cole, D. R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM cup126@psu.edu; amanda.a.olsen@maine.edu; jdk7@psu.edu; ktm2@psu.edu; brantley@essc.psu.edu; coledr@ornl.gov RI Mueller, Karl/A-3637-2010; Kubicki, James/I-1843-2012 OI Kubicki, James/0000-0002-9277-9044 NR 2 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A729 EP A729 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402161 ER PT J AU Nagy, KL Lee, SS Park, C Schlegel, ML Cheng, L Sturchio, NC Fenter, P AF Nagy, K. L. Lee, S. S. Park, C. Schlegel, M. L. Cheng, L. Sturchio, N. C. Fenter, P. TI Extrapolating investigations of ion and molecular adsorption at the muscovite (001)-water interface to systems in Earth, environmental, and materials science SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Nagy, K. L.; Sturchio, N. C.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA. [Lee, S. S.; Fenter, P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Park, C.] Carnegie Inst Washington, Geophys Lab, HP CAT, Argonne, IL 60439 USA. [Schlegel, M. L.] Univ OEvry Val OEssonne, CEA, DEN, F-91025 Evry, France. [Cheng, L.] City Coll Chicago, Truman Coll, Chicago, IL 60640 USA. EM klnagy@uic.edu RI Lee, Sang Soo/B-9046-2012; Cheng, Likwan/C-1436-2013; Park, Changyong/A-8544-2008 OI Park, Changyong/0000-0002-3363-5788 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A745 EP A745 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402193 ER PT J AU Navarre-Sitchler, AK Steefel, CI Brantley, SL AF Navarre-Sitchler, Alexis K. Steefel, Carl I. Brantley, Susan L. TI Importance of porosity in saprolite formation on basalt SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Navarre-Sitchler, Alexis K.] Colorado Sch Mines, Environm Sci & Engn Div, Golden, CO 80401 USA. [Steefel, Carl I.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Brantley, Susan L.] Penn State Univ, Ctr Environm Kinet Anal, University Pk, PA 16802 USA. EM aksitchler@gmail.com RI Steefel, Carl/B-7758-2010 NR 0 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A748 EP A748 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402200 ER PT J AU Newell, DL AF Newell, Dennis L. TI Isotope geochemistry of CO2-rich mineral springs - Natural analogs for a leaking carbon sequestration scenario SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Newell, Dennis L.] Los Alamos Natl Lab, Los Alamos, NM USA. EM dnewell@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A755 EP A755 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402213 ER PT J AU Nico, PS Keiluweit, M Kleber, M Hatton, PJ Zeller, B Derrien, D AF Nico, Peter S. Keiluweit, Marco Kleber, Markus Hatton, Pierre-Joseph Zeller, Bernd Derrien, Delphine TI The speciation of organic matter in soil mineral organic associations - Inference from STXM and N, C and Fe NEXAFS SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Nico, Peter S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Keiluweit, Marco; Kleber, Markus] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA. [Hatton, Pierre-Joseph; Zeller, Bernd; Derrien, Delphine] Inst Natl Rech Agronom, Dept Ecol Forets Prairies & Milieux Aquat, Ctr Nancy, Nancy, France. RI Hatton, Pierre-Joseph/C-9142-2013; Nico, Peter/F-6997-2010 OI Hatton, Pierre-Joseph/0000-0002-0662-8734; Nico, Peter/0000-0002-4180-9397 NR 0 TC 0 Z9 0 U1 1 U2 10 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A758 EP A758 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402219 ER PT J AU Nielsen, L Bourg, I Sposito, G AF Nielsen, Laura Bourg, Ian Sposito, Garrison TI Molecular dynamics simulations of CO2-brine interfacial tension and mutual solubility SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Bourg, Ian] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Nielsen, Laura] Univ Calif Berleley, Berkeley, CA USA. EM lnielsen@berkeley.edu; icbourg@lbl.gov; gsposito@berkeley.edu NR 4 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A759 EP A759 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402221 ER PT J AU Ntarlagiannis, D Williams, K Slater, L Hubbard, S Wu, Y AF Ntarlagiannis, D. Williams, K. Slater, L. Hubbard, S. Wu, Y. TI Investigating the effect of electro-active ion concentration on induced polarization signatures arising from biomineral formation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ntarlagiannis, D.; Slater, L.] Rutgers State Univ, Dept Earth & Environm Sci, Newark, NJ 07102 USA. [Williams, K.; Hubbard, S.; Wu, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM dimntar@andromeda.rutgers.edu; khwilliams@lbl.gov; lslater@andromeda.rutgers.edu; SSHubbard@lbl.gov; YWu3@lbl.gov NR 0 TC 1 Z9 1 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A767 EP A767 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402238 ER PT J AU O'Loughlin, E Boyanov, M Cook, R Gorski, C Mishra, B Scherer, M Kemner, K AF O'Loughlin, E. Boyanov, M. Cook, R. Gorski, C. Mishra, B. Scherer, M. Kemner, K. TI Effects of structural phosphate on the microbial reduction of iron oxide and secondary mineralization product formation and reactivity SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [O'Loughlin, E.; Boyanov, M.; Cook, R.; Mishra, B.; Kemner, K.] Argonne Natl Lab, Argonne, IL 60439 USA. [Gorski, C.; Scherer, M.] Univ Iowa, Iowa City, IA 52242 USA. EM oloughlin@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A769 EP A769 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402241 ER PT J AU Parikh, M Lin, CC Wang, YP Dohnalkova, A Kukkadapu, R Bowden, M Barkay, T Yee, N AF Parikh, Madhavi Lin, Chu-Ching Wang, Yanping Dohnalkova, Alice Kukkadapu, Ravi Bowden, Mark Barkay, Tamar Yee, Nathan TI Novel iron-reducing bacterium isolated from Oak Ridge TN SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Parikh, Madhavi; Lin, Chu-Ching; Wang, Yanping; Barkay, Tamar; Yee, Nathan] Rutgers State Univ, New Brunswick, NJ 08903 USA. [Dohnalkova, Alice; Kukkadapu, Ravi; Bowden, Mark] Pacific NW Natl Lab, Richland, WA 99352 USA. EM madhavi@eden.rutgers.edu NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A792 EP A792 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402287 ER PT J AU Parise, JB Harrington, R Xu, W Michel, FM Hausner, DB Debnath, S Strongin, DR AF Parise, J. B. Harrington, R. Xu, W. Michel, F. M. Hausner, D. B. Debnath, S. Strongin, D. R. TI Understanding the composition and structure of ferrihydrite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Michel, F. M.] SLAC, Menlo Pk, CA 94025 USA. [Hausner, D. B.] Rutgers, Camden, NJ USA. [Debnath, S.; Strongin, D. R.] Temple Univ, Philadelphia, PA 19122 USA. EM john.parise@sunysb.edu; richard.harrington@sunysb.edu; fmichel@stanford.edu; doug.hausner@gmail.com NR 0 TC 0 Z9 0 U1 0 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A793 EP A793 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402289 ER PT J AU Park, C Fenter, P Catalano, JG Lee, SS Nagy, KL Sturchio, NC AF Park, C. Fenter, P. Catalano, J. G. Lee, S. S. Nagy, K. L. Sturchio, N. C. TI Aqueous-mineral interfaces toward extreme conditions: The potential experimental approaches with synchrotron X-ray probe SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Park, C.] Carnegie Inst Sci, HPCAT, Geophys Lab, Argonne, IL 60439 USA. [Fenter, P.; Lee, S. S.] Argonne Natl Lab, Argonne, IL 63130 USA. [Catalano, J. G.] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO USA. [Nagy, K. L.; Sturchio, N. C.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL USA. EM cypark@hpcat.aps.anl.gov RI Lee, Sang Soo/B-9046-2012; Catalano, Jeffrey/A-8322-2013; Park, Changyong/A-8544-2008 OI Catalano, Jeffrey/0000-0001-9311-977X; Park, Changyong/0000-0002-3363-5788 NR 7 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A794 EP A794 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402292 ER PT J AU Parks, JM Guo, H Momany, C Liang, L Miller, SM Summers, AO Smith, JC AF Parks, J. M. Guo, H. Momany, C. Liang, L. Miller, S. M. Summers, A. O. Smith, J. C. TI Catalytic mechanism of Hg-C bond cleavage by the organomercurial lyase MerB SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Parks, J. M.; Liang, L.; Smith, J. C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Guo, H.; Smith, J. C.] Univ Tennessee, Knoxville, TN 37996 USA. [Momany, C.; Summers, A. O.] Univ Georgia, Athens, GA 30602 USA. [Miller, S. M.] Univ Calif San Francisco, San Francisco, CA 94158 USA. EM parksjm@ornl.gov RI smith, jeremy/B-7287-2012; Liang, Liyuan/O-7213-2014 OI smith, jeremy/0000-0002-2978-3227; Liang, Liyuan/0000-0003-1338-0324 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A795 EP A795 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402294 ER PT J AU Pearce, CI Qafoku, O Liu, J Arenholz, E Heald, SM Felmy, AR Henderson, CMB Rosso, KM AF Pearce, C. I. Qafoku, O. Liu, J. Arenholz, E. Heald, S. M. Felmy, A. R. Henderson, C. M. B. Rosso, K. M. TI Characterization of reactive ferrous iron in titanomagnetite (Fe3-xTixO4) nanoparticles for contaminant reduction SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Pearce, C. I.; Qafoku, O.; Liu, J.; Felmy, A. R.; Rosso, K. M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Heald, S. M.] Argonne Natl Lab, Argonne, IL 60439 USA. [Henderson, C. M. B.] Daresbury Lab, Warrington WA4 4AD, Cheshire, England. EM Carolyn.Pearce@pnl.gov RI Liu, Juan/D-2273-2013 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A800 EP A800 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402303 ER PT J AU Peretyazhko, T Zachara, JM Kukkadapu, RK Liu, C Heald, SM Resch, CT Arey, BW Wang, C Plymale, AE AF Peretyazhko, T. Zachara, J. M. Kukkadapu, R. K. Liu, C. Heald, S. M. Resch, C. T. Arey, B. W. Wang, C. Plymale, A. E. TI Reactions of Tc with Fe(II) and O-2 in Hanford redox-sensitive sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Peretyazhko, T.; Zachara, J. M.; Kukkadapu, R. K.; Liu, C.; Resch, C. T.; Arey, B. W.; Wang, C.; Plymale, A. E.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Heald, S. M.] Argonne Natl Lab, Argonne, IL 60439 USA. EM tetyana.peretyazhko@pnl.gov RI Liu, Chongxuan/C-5580-2009 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A807 EP A807 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402317 ER PT J AU Pett-Ridge, J Keiluweit, M Kleber, M Myrold, D Nico, P Weber, P AF Pett-Ridge, Jennifer Keiluweit, Marco Kleber, Markus Myrold, David Nico, Peter Weber, Peter TI Visualizing organic matter biogeochemistry at the microaggregate scale: Lessons from STXM-SIMS SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Pett-Ridge, Jennifer; Weber, Peter] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Keiluweit, Marco; Kleber, Markus; Myrold, David] Oregon State Univ, Dept Crop & Soil Sci, Corvallis, OR 97331 USA. [Nico, Peter] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM pettridge2@llnl.gov; marco.keiluweit@oregonstate.edu; Markus.Kleber@oregonstate.edu; david.myrold@oregonstate.edu; pnico123@gmail.com; weber21@llnl.gov RI Myrold, David/E-1813-2011; Nico, Peter/F-6997-2010 OI Myrold, David/0000-0001-6418-226X; Nico, Peter/0000-0002-4180-9397 NR 0 TC 0 Z9 0 U1 1 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A813 EP A813 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402329 ER PT J AU Pierce, EM AF Pierce, E. M. TI Effect of B/Al ratio on the dissolution of nepheline glass, Na-3(Al, B)(1-4)Si4O16 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Pierce, E. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM eric.pierce@pnl.gov RI Pierce, Eric/G-1615-2011 OI Pierce, Eric/0000-0002-4951-1931 NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A816 EP A816 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402336 ER PT J AU Powell, BA Bagwell, C Kaplan, DI Kersting, AB Zavarin, M Zimmerman, TN AF Powell, Brian A. Bagwell, Christopher Kaplan, Daniel I. Kersting, Annie B. Zavarin, Mavrik Zimmerman, Trevor N. TI Modeling actinide interactions with minerals and microbes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Powell, Brian A.; Zimmerman, Trevor N.] Clemson Univ, Clemson, SC 29625 USA. [Bagwell, Christopher; Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC 29803 USA. [Zavarin, Mavrik; Zimmerman, Trevor N.] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94601 USA. EM bpowell@clemson.edu RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 3 TC 0 Z9 0 U1 2 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A828 EP A828 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402359 ER PT J AU Powell, BA Bagwell, C Kaplan, DI Kersting, AB Zavarin, M Zimmerman, TN AF Powell, Brian A. Bagwell, Christopher Kaplan, Daniel I. Kersting, Annie B. Zavarin, Mavrik Zimmerman, Trevor N. TI Modern thrombolites from an asbestos open pit pond SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Powell, Brian A.; Zimmerman, Trevor N.] Clemson Univ, Clemson, SC 29625 USA. [Bagwell, Christopher; Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC 29803 USA. [Kersting, Annie B.; Zavarin, Mavrik] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94601 USA. EM bpowell@clemson.edu RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A828 EP A828 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402360 ER PT J AU Predota, M Wesolowski, DJ Machesky, ML Cummings, PT AF Predota, Milan Wesolowski, D. J. Machesky, M. L. Cummings, P. T. TI Molecular simulations of electrokinetic phenomena at the solid-liquid interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN ID ELECTRIC DOUBLE-LAYER; RUTILE 110 SURFACE; DYNAMICS C1 [Predota, Milan] Univ S Bohemia, Ceske Budejovice 37005, Czech Republic. [Wesolowski, D. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Machesky, M. L.] Univ Illinois, Champaign, IL 61820 USA. [Cummings, P. T.] Vanderbilt Univ, Nashville, TN 37235 USA. EM predota@prf.jcu.cz RI Predota, Milan/A-2256-2009; Cummings, Peter/B-8762-2013 OI Predota, Milan/0000-0003-3902-0992; Cummings, Peter/0000-0002-9766-2216 NR 5 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A830 EP A830 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402364 ER PT J AU Quicksall, AN Barton, LE Chupas, PJ Kosel, TH Maurice, PA AF Quicksall, A. N. Barton, L. E. Chupas, P. J. Kosel, T. H. Maurice, P. A. TI Hematite nanoparticle structure and reactivity SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Quicksall, A. N.; Barton, L. E.; Maurice, P. A.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA. [Chupas, P. J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Kosel, T. H.] Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA. EM andrew.quicksall@nd.edu; lbarton@nd.edu; chupas@anl.gov; kosel@nd.edu; pmaurice@nd.edu NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A841 EP A841 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402386 ER PT J AU Rao, B Jackson, WA Bohlke, JK Hatzinger, PB Gu, B Sturchio, N AF Rao, B. Jackson, W. A. Boehlke, J. K. Hatzinger, P. B. Gu, B. Sturchio, Neil TI Understanding natural perchlorate formation by ozone and UV-oxidation of aqueous Cl species SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Rao, B.; Jackson, W. A.] Texas Tech Univ, Lubbock, TX 79409 USA. [Boehlke, J. K.] US Geol Survey, Reston, VA 22092 USA. [Gu, B.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Sturchio, Neil] Univ Illinois, Chicago, IL USA. EM balaji.rao@ttu.edu; andrew.jackson@ttu.edu; jkbohlke@usgs.gov; paul.hatzinger@shawgrp.com; gub1@ornl.gov; sturchio@uic.edu RI Gu, Baohua/B-9511-2012; Jackson, William/B-8999-2009 OI Gu, Baohua/0000-0002-7299-2956; NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A848 EP A848 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402400 ER PT J AU Rawn, CJ Leeman, JR Ulrich, SM Alford, JE Madden, ME Phelps, TJ AF Rawn, C. J. Leeman, J. R. Ulrich, S. M. Alford, J. E. Madden, M. E. Phelps, T. J. TI Homogeneous and heterogeneous sediment experiments using fiber optic sensing technology for detecting gas hydrate formation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Rawn, C. J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Rawn, C. J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Leeman, J. R.; Madden, M. E.] Univ Oklahoma, Sch Geol & Geophys, Norman, OK 73019 USA. [Ulrich, S. M.] Colorado Sch Mines, Dept Environm Sci & Engn, Golden, CO 80401 USA. [Alford, J. E.; Phelps, T. J.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM rawncj@ornl.gov RI Ulrich, Shannon/J-9492-2012 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A853 EP A853 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402409 ER PT J AU Ridley, MK Machesky, ML Wesolowski, DJ AF Ridley, M. K. Machesky, M. L. Wesolowski, D. J. TI Adsorption of strontium at nano- and micro-crystalline titanium-dioxide interfaces: Interpreting surface speciation using charge distribution and the MUSIC model SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ridley, M. K.] Texas Tech Univ, Dept Geosci, Lubbock, TX 79409 USA. [Machesky, M. L.] Illinois State Water Survey, Champaign, IL 61820 USA. [Wesolowski, D. J.] Oak Ridge Natl Lab, Oak Ridge, TN USA. EM moira.ridley@ttu.edu NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A870 EP A870 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402444 ER PT J AU Rod, KA Wellman, DM Flury, M AF Rod, K. A. Wellman, D. M. Flury, M. TI Diffusion retardation due to decreasing micro-channel width in a 2-D micromodel SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Rod, K. A.; Wellman, D. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Flury, M.] Washington State Univ, Pullman, WA 99164 USA. EM kenton.rod@pnl.gov NR 3 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A874 EP A874 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402452 ER PT J AU Ross, DS Lanzirotti, A AF Ross, Donald S. Lanzirotti, Antonio TI Oxidation of added Mn(II) in soils as observed by the Cr Oxidation Test and Mn K alpha XANES spectroscopy SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ross, Donald S.] Univ Vermont, Dept Plant & Soil Sci, Burlington, VT 05405 USA. [Lanzirotti, Antonio] Univ Chicago CARS, Natl Synchrotron Light Source, Brookhaven Natl Lab, Upton, NY 11973 USA. EM dross@uvm.edu; lanzirotti@bnl.gov NR 3 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A883 EP A883 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402469 ER PT J AU Ross, NL Spencer, EC Parker, SF Kolesnikov, AI Boerio-Goates, J Woodfield, BF Navrotsky, A AF Ross, N. L. Spencer, E. C. Parker, S. F. Kolesnikov, A. I. Boerio-Goates, J. Woodfield, B. F. Navrotsky, A. TI Influence of adsorbed water on energetics of cassiterite nanoparticles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ross, N. L.; Spencer, E. C.] Virginia Tech, Blacksburg, VA 24061 USA. [Parker, S. F.] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England. [Kolesnikov, A. I.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Boerio-Goates, J.; Woodfield, B. F.] Brigham Young Univ, Provo, UT 84602 USA. [Navrotsky, A.] Univ Calif Davis, Davis, CA 95616 USA. EM nross@vt.edu RI Kolesnikov, Alexander/I-9015-2012 OI Kolesnikov, Alexander/0000-0003-1940-4649 NR 3 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A884 EP A884 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402471 ER PT J AU Rother, G Horita, J Littrell, KC Cole, DR AF Rother, Gernot Horita, Juske Littrell, Kenneth C. Cole, David R. TI Sorption and wetting properties of pore fluids probed by neutron scattering techniques SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Rother, Gernot; Horita, Juske; Cole, David R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Littrell, Kenneth C.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM rotherg@ornl.gov RI Rother, Gernot/B-7281-2008; Littrell, Kenneth/D-2106-2013 OI Rother, Gernot/0000-0003-4921-6294; Littrell, Kenneth/0000-0003-2308-8618 NR 5 TC 1 Z9 1 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A886 EP A886 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402476 ER PT J AU Ruminski, AM Urban, JJ AF Ruminski, A. M. Urban, J. J. TI Influence of MgO nanoparticle size on available surface area for carbonation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ruminski, A. M.; Urban, J. J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM jjurban@lbl.gov NR 2 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A891 EP A891 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402486 ER PT J AU Russo, RE Gonzalez, J AF Russo, R. E. Gonzalez, J. TI Applications of LA-ICP-MS in geoanalysis - New technologies and future perspectives SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Russo, R. E.; Gonzalez, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Russo, R. E.; Gonzalez, J.] Appl Spectra Inc, Fremont, CA 94538 USA. EM rerusso@lbl.gov NR 4 TC 2 Z9 2 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A893 EP A893 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402490 ER PT J AU Sanford, R Fletcher, K Thomas, S Kemner, K Boyanov, M Ritalahti, K Loeffler, F AF Sanford, Robert Fletcher, Kelly Thomas, Sara Kemner, Kenneth Boyanov, Maxim Ritalahti, Kirsti Loeffler, Frank TI Uranium biogeochemistry - Novel insights from a microbe's prospective SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Sanford, Robert] Univ Illinois, Dept Geol, Urbana, IL 61801 USA. [Fletcher, Kelly; Thomas, Sara] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. [Kemner, Kenneth; Boyanov, Maxim] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Ritalahti, Kirsti; Loeffler, Frank] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Ritalahti, Kirsti; Loeffler, Frank] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. [Loeffler, Frank] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM frank.loeffler@ce.gatech.edu RI Ritalahti, Kirsti/B-4624-2010; Loeffler, Frank/M-8216-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A907 EP A907 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402517 ER PT J AU Scherer, M Gorski, C Schaefer, M Latta, D O'Loughlin, E Boyanov, M Kemner, K AF Scherer, M. Gorski, C. Schaefer, M. Latta, D. O'Loughlin, E. Boyanov, M. Kemner, K. TI Fe(II)-Fe(III) electron transfer in Fe oxides and clays: Implications for contaminant transformations SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Scherer, M.; Gorski, C.; Schaefer, M.; Latta, D.] Univ Iowa, Iowa City, IA 52240 USA. [O'Loughlin, E.; Boyanov, M.; Kemner, K.] Argonne Natl Lab, Mol Environm Sci Grp, Biosci Div, Argonne, IL 60439 USA. EM michelle-scherer@uiowa.edu; kemner@anl.gov NR 4 TC 0 Z9 0 U1 2 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A920 EP A920 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402544 ER PT J AU Scherer, M Handler, R Gorski, C Johnson, C Beard, B Rosso, K AF Scherer, M. Handler, R. Gorski, C. Johnson, C. Beard, B. Rosso, K. TI Redox behavior of nanoscale Fe oxides: Stable isotope investigations SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Scherer, M.; Handler, R.; Gorski, C.] Univ Iowa, Iowa City, IA 52240 USA. [Johnson, C.; Beard, B.] Univ Wisconsin, Dept Geol & Geophys, Madison, WI 53706 USA. [Rosso, K.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. EM michelle-scherer@uiowa.edu; clarkj@geology.wisc.edu; Kevin.Rosso@pnl.gov RI Handler, Robert/D-1510-2009 NR 2 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A921 EP A921 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402545 ER PT J AU Schmidt, M Bosbach, D Stumpf, T Walther, C AF Schmidt, M. Bosbach, D. Stumpf, T. Walther, C. TI Guest ion speciation in a homogeneous solid solution by polarisation-dependent TRLFS SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Schmidt, M.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Bosbach, D.] Forschungszentrum Julich, Inst Energieforsch IEF 6, D-52425 Julich, Germany. [Stumpf, T.; Walther, C.] Forschungszentrum Karlsruhe, Inst Nukl Entsorgun, D-76021 Karlsruhe, Germany. EM mschmidt@anl.gov RI Schmidt, Moritz/C-2610-2011; Bosbach, Dirk/C-7764-2011 OI Schmidt, Moritz/0000-0002-8419-0811; Bosbach, Dirk/0000-0002-6099-0400 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A924 EP A924 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402551 ER PT J AU Shelbolina, E Xu, HF Konishi, H Kukkadapu, R Wu, T Roden, E AF Shelbolina, Evgenya Xu, Huifang Konishi, Hiromi Kukkadapu, Ravi Wu, Tao Roden, Eric TI Microbial oxidation and mineralogical alteration of biotite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Shelbolina, Evgenya; Xu, Huifang; Konishi, Hiromi; Wu, Tao; Roden, Eric] Univ Wisconsin, Madison, WI USA. [Kukkadapu, Ravi] Pacific NW Natl Lab, Richland, WA 99352 USA. EM shelobolina@wisc.edu; hfxu@geology.wisc.edu; hkonishi@wisc.edu; ravi.kukkadapu@pnl.gov; twu6@wisc.edu; eroden@geology.wisc.edu NR 2 TC 3 Z9 3 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A944 EP A944 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402592 ER PT J AU Shuster, J Marsden, S MacLean, L Bolin, T Southam, G AF Shuster, J. Marsden, S. MacLean, L. Bolin, T. Southam, G. TI The immobilization of Au(III) chloride by halophilic, sulfate reducing bacteria SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Shuster, J.; Marsden, S.; Southam, G.] Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada. [MacLean, L.] Nat Resources Canada, Ottawa, ON K1A 0G1, Canada. [Bolin, T.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM jshuster@uwo.ca RI Southam, Gordon/D-1983-2013 OI Southam, Gordon/0000-0002-8941-1249 NR 1 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A960 EP A960 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402623 ER PT J AU Silin, D Kneafsey, TJ Ajo-Franklin, JB Nico, P AF Silin, Dmitriy Kneafsey, Timothy J. Ajo-Franklin, Jonathan B. Nico, Peter TI Three-dimensional imaging of tight gas host rock - Observations and conceptual models SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Silin, Dmitriy; Kneafsey, Timothy J.; Ajo-Franklin, Jonathan B.; Nico, Peter] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM DSilin@lbl.gov; TJKneafsey@lbl.gov; JBAjo-Franklin@lbl.gov; PSNico@lbl.gov RI Nico, Peter/F-6997-2010; Kneafsey, Timothy/H-7412-2014; Ajo-Franklin, Jonathan/G-7169-2015 OI Nico, Peter/0000-0002-4180-9397; Kneafsey, Timothy/0000-0002-3926-8587; NR 1 TC 1 Z9 1 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A962 EP A962 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402627 ER PT J AU Simanova, AA Persson, P Loring, JS AF Simanova, Anna A. Persson, Per Loring, John S. TI Hydrolysis of desferrioxamine-B at the surface of goethite in the dark at pH 6 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Simanova, Anna A.; Persson, Per; Loring, John S.] Umea Univ, Dept Chem, Umea, Sweden. [Loring, John S.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM anna.simanova@chem.umu.se; per.persson@chem.umu.se; john.loring@pnl.gov NR 3 TC 1 Z9 1 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A963 EP A963 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402630 ER PT J AU Singer, DM Banfield, JF Waychunas, GA AF Singer, David M. Banfield, Jill F. Waychunas, Glenn A. TI Identification of U(VI) sorption products and precipitates on magnetite by GI-SAXS, GI-XAS, and microscopy SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Singer, David M.; Banfield, Jill F.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Singer, David M.; Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A965 EP A965 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402634 ER PT J AU Singer, SW Woebken, D Burow, LC Prufert-Bebout, L Bebout, BM Pett-Ridge, J Spormann, AM Weber, PK AF Singer, Steven W. Woebken, Dagmar Burow, Luke C. Prufert-Bebout, Lee Bebout, Brad M. Pett-Ridge, Jennifer Spormann, Alfred M. Weber, Peter K. TI NanoSIP: Combining stable isotope probing and high resolution secondary ion mass spectrometry to identify diazotrophs in stratified marine microbial communities SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Singer, Steven W.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Woebken, Dagmar; Burow, Luke C.; Spormann, Alfred M.] Stanford Univ, Stanford, CA 94305 USA. [Prufert-Bebout, Lee; Bebout, Brad M.] NASA, Ames Res Ctr, Washington, DC 20546 USA. [Pett-Ridge, Jennifer; Spormann, Alfred M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM SWSinger@lbl.gov; dwoebken@stanford.edu; lburow@stanford.edu; Leslie.E.Bebout@mail.nasa.gov; brad.m.bebout@nasa.gov; pettridge2@llnl.gov; spormann@stanford.edu; weber21@llnl.gov RI Abu Laban , Dr. Nidal /E-5809-2011 NR 0 TC 0 Z9 0 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A966 EP A966 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402636 ER PT J AU Skelton, AA Kubicki, JD Fenter, P Van Duin, ACT Wesolowski, DJ Cummings, PT AF Skelton, A. A. Kubicki, J. D. Fenter, P. Van Duin, A. C. T. Wesolowski, D. J. Cummings, P. T. TI A combined computational/experimental approach to understanding the quartz/water interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Skelton, A. A.; Cummings, P. T.] Vanderbilt Univ, Dept Chem Eng, Nashville, TN USA. [Wesolowski, D. J.; Cummings, P. T.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN USA. [Kubicki, J. D.; Van Duin, A. C. T.] Penn State Univ, University Pk, PA 16802 USA. [Fenter, P.] Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. EM adam.a.skelton@vanderbilt.edu RI Skelton, Adam/G-4517-2014; Cummings, Peter/B-8762-2013; Kubicki, James/I-1843-2012 OI Cummings, Peter/0000-0002-9766-2216; Kubicki, James/0000-0002-9277-9044 NR 5 TC 2 Z9 2 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A969 EP A969 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402642 ER PT J AU Sofo, JO Kumar, N Kent, PRC Bandura, A Kubicki, JD AF Sofo, Jorge O. Kumar, Nitin Kent, Paul R. C. Bandura, Andrei Kubicki, James D. TI Dynamics of water dissociation on oxides surfaces: Comparison between rutile and cassiterite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Sofo, Jorge O.; Kumar, Nitin] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. [Sofo, Jorge O.; Kumar, Nitin] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. [Kent, Paul R. C.] ORNL, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. [Kent, Paul R. C.] ORNL, Div Chem Sci, Oak Ridge, TN 37830 USA. [Bandura, Andrei] St Petersburg State Univ, St Petersburg 198504, Russia. [Kubicki, James D.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA. EM sofo@psu.edu RI Kent, Paul/A-6756-2008; Sofo, Jorge/J-4415-2012; Sofo, Jorge/B-4344-2014; Kumar, Nitin/M-5778-2014; Kubicki, James/I-1843-2012 OI Kent, Paul/0000-0001-5539-4017; Sofo, Jorge/0000-0003-4513-3694; Sofo, Jorge/0000-0003-4513-3694; Kumar, Nitin/0000-0002-1064-1659; Kubicki, James/0000-0002-9277-9044 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A975 EP A975 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402653 ER PT J AU Song, Z Quicksall, AN Chupas, P Bunker, BA Maurice, PA AF Song, Z. Quicksall, A. N. Chupas, P. Bunker, B. A. Maurice, P. A. TI Structural study of aluminous goethite nano/micro particles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN ID DISSOLUTION C1 [Song, Z.; Bunker, B. A.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Quicksall, A. N.; Maurice, P. A.] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA. [Chupas, P.; Bunker, B. A.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM zsong@nd.edu NR 2 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A977 EP A977 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402658 ER PT J AU Spanu, L Donadio, D Schwegler, E Hohl, D Galli, G AF Spanu, Leonardo Donadio, Davide Schwegler, Eric Hohl, Detlef Galli, Giulia TI Methane under pressure: Dissociation reactions from ab initio simulation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Spanu, Leonardo; Donadio, Davide; Galli, Giulia] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [Schwegler, Eric] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. [Hohl, Detlef] Shell Int Explorat & Prod, Rijswijk, Netherlands. [Galli, Giulia] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. EM lspanu@ucdavis.edu RI Schwegler, Eric/A-2436-2016 OI Schwegler, Eric/0000-0003-3635-7418 NR 1 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A982 EP A982 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402667 ER PT J AU Spycher, N Issarangkun, M Stewart, B Sengor, S Ginn, T Sani, R Peyton, B AF Spycher, N. Issarangkun, M. Stewart, B. Sengor, S. Ginn, T. Sani, R. Peyton, B. TI Modeling UO2 bioprecipitation and reoxidation by Fe(III) (hydr)oxides SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Spycher, N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Issarangkun, M.; Sengor, S.; Ginn, T.] Univ Calif Davis, Davis, CA 95616 USA. [Sani, R.] SD Sch Mines & Technol, Rapid City, SD 57701 USA. [Stewart, B.; Peyton, B.] Montana State Univ, Bozeman, MT 59717 USA. EM nspycher@lbl.gov NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A984 EP A984 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402671 ER PT J AU Steefel, CI AF Steefel, C. I. TI Modeling mineral aging in the Critical Zone SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Steefel, C. I.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM CISteefel@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A990 EP A990 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402683 ER PT J AU Stubbs, JE Eng, PJ Waychunas, GA Paffett, MT Bargar, JR AF Stubbs, Joanne E. Eng, Peter J. Waychunas, Glenn A. Paffett, Mark T. Bargar, John R. TI Structure of hydrated UO2 surfaces SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Stubbs, Joanne E.; Bargar, John R.] Stanford Synchrotron Radiat Lightsource SSRL, Menlo Pk, CA USA. [Eng, Peter J.] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA. [Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Paffett, Mark T.] Los Alamos Natl Lab, Los Alamos, NM USA. EM jstubbs@slac.stanford.edu RI Stubbs, Joanne/F-9710-2013 OI Stubbs, Joanne/0000-0002-8509-2009 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1000 EP A1000 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402703 ER PT J AU Sturchio, NC Beloso, AD Bohlke, JK Caffee, M Gu, B Hatzinger, PD Heraty, LJ Jackson, WA AF Sturchio, N. C. Beloso, A. D., Jr. Boehlke, J. K. Caffee, M. Gu, B. Hatzinger, P. D. Heraty, L. J. Jackson, W. Andrew TI Isotopic tracing of the origin and transport of perchlorate SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Sturchio, N. C.; Beloso, A. D., Jr.; Heraty, L. J.] Univ Illinois, Chicago, IL 60607 USA. [Boehlke, J. K.] US Geol Survey, Reston, VA 20192 USA. [Caffee, M.] Purdue Univ, W Lafayette, IN 47907 USA. [Gu, B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Hatzinger, P. D.] Shaw Environm Inc, Lawrenceville, NJ 08648 USA. [Jackson, W. Andrew] Texas Tech Univ, Lubbock, TX 79409 USA. EM sturchio@uic.edu; jkbohlke@usgs.gov; mcaffee@physics.purdue.edu; gub1@ornl.gov; paul.hatzonger@shawgrp.com; Andrew.Jackson@ttu.edu RI Gu, Baohua/B-9511-2012; Jackson, William/B-8999-2009 OI Gu, Baohua/0000-0002-7299-2956; NR 4 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1001 EP A1001 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402705 ER PT J AU Suchomel, MR Ribaud, L Von Dreele, RB Toby, BH AF Suchomel, M. R. Ribaud, L. Von Dreele, R. B. Toby, B. H. TI Synchrotron powder diffraction simplified: The high-resolution diffractometer 11-BM at the Advanced Photon Source SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Suchomel, M. R.; Ribaud, L.; Von Dreele, R. B.; Toby, B. H.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM suchomel@aps.anl.gov RI Toby, Brian/F-3176-2013 OI Toby, Brian/0000-0001-8793-8285 NR 0 TC 1 Z9 1 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1003 EP A1003 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402710 ER PT J AU Sullivan, EJ Pawar, R Stauffer, P AF Sullivan, Enid J. Pawar, Rajesh Stauffer, Phil TI Produced water chemistry, treatment models, and use in algal biofuel production and carbon capture and sequestration; or, How produced water is like Champagne SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Sullivan, Enid J.] Los Alamos Natl Lab, Chem Diagnost & Engn Grp, Los Alamos, NM 87545 USA. [Pawar, Rajesh; Stauffer, Phil] Los Alamos Natl Lab, Computat Earth Sci Grp, Los Alamos, NM 87545 USA. EM ejs@lanl.gov; rajesh@lanl.gov; stauffer@lanl.gov NR 1 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1005 EP A1005 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402713 ER PT J AU Suresh, AK Pelletier, DA Brown, SD Gu, B Wang, W Allison, DP Joy, DC Phelps, TJ Doktycz, MJ AF Suresh, A. K. Pelletier, D. A. Brown, S. D. Gu, B. Wang, W. Allison, D. P. Joy, D. C. Phelps, T. J. Doktycz, M. J. TI Silver nanoparticles: Biosynthesis and comparative toxicity on Gram-ve and Gram plus ve bacteria SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Suresh, A. K.; Pelletier, D. A.; Brown, S. D.; Allison, D. P.; Phelps, T. J.; Doktycz, M. J.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. [Gu, B.; Wang, W.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. [Allison, D. P.; Joy, D. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. EM sureshak@ornl.gov RI Doktycz, Mitchel/A-7499-2011; Pelletier, Dale/F-4154-2011; Gu, Baohua/B-9511-2012; Wang, Wei/B-5924-2012; Brown, Steven/A-6792-2011 OI Doktycz, Mitchel/0000-0003-4856-8343; Gu, Baohua/0000-0002-7299-2956; Brown, Steven/0000-0002-9281-3898 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1010 EP A1010 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402723 ER PT J AU Swindle, AL Madden, AS Beazley, MJ Moon, JW Ravel, B Phelps, TJ AF Swindle, A. L. Madden, A. S. Beazley, M. J. Moon, J. -W. Ravel, B. Phelps, T. J. TI Fate of ferric-hydroxide associated U(VI) during biological magnetite formation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Swindle, A. L.; Madden, A. S.; Beazley, M. J.] Univ Okla, Norman, OK 73019 USA. [Moon, J. -W.; Phelps, T. J.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Ravel, B.] Brookhaven Natl Lab, Natl Inst Stand & Technol, Upton, NY 11973 USA. EM aswindle@ou.edu; amadden@ou.edu; mbeazley@ou.edu; moonj@ornl.gov; bravel@bnl.gov; phelpstj@ornl.gov RI Moon, Ji-Won/A-9186-2011 OI Moon, Ji-Won/0000-0001-7776-6889 NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1015 EP A1015 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402733 ER PT J AU Sycheva, LV Eggleston, CM Colberg, PJS Magnuson, TS Shi, L AF Sycheva, L. V. Eggleston, C. M. Colberg, P. J. S. Magnuson, T. S. Shi, L. TI Redox-linked conformation change observed for adsorbed metal-reducing bacterial cytochromes SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Sycheva, L. V.; Eggleston, C. M.] Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA. [Colberg, P. J. S.] Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA. [Magnuson, T. S.] Idaho State Univ, Dept Biol Sci, Pocatello, ID 83209 USA. [Magnuson, T. S.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM carrick@uwyo.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1015 EP A1015 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941402734 ER PT J AU Tang, G Mayes, MA Jardine, PM Parker, JC Brooks, SC AF Tang, G. Mayes, M. A. Jardine, P. M. Parker, J. C. Brooks, S. C. TI Simulating reactive transport of Cobalt-EDTA complexes through large intact sediment cores SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Tang, G.; Mayes, M. A.; Brooks, S. C.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Jardine, P. M.] Univ Tennessee, Dept Biosyst Engn & Soil Sci, Knoxville, TN 37996 USA. [Parker, J. C.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. EM tangg@ornl.gov; mayesma@ornl.gov; pjardine@utk.edu; jparker@utk.edu; brookssc@ornl.gov RI Brooks, Scott/B-9439-2012; Tang, Guoping/A-5141-2010 OI Brooks, Scott/0000-0002-8437-9788; Tang, Guoping/0000-0003-1090-3564 NR 4 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1024 EP A1024 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400089 ER PT J AU Thieme, J Sedlmair, J Gleber, SC Rieger, J Niemeyer, J Coates, J AF Thieme, J. Sedlmair, J. Gleber, S. -C. Rieger, J. Niemeyer, J. Coates, J. TI X-ray microscopy - A tool to study the nanoworld SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Thieme, J.] Brookhaven Natl Lab, NSLS II, Upton, NY 11973 USA. [Sedlmair, J.; Gleber, S. -C.] Univ Gottingen, Inst Xray Phys, D-37077 Gottingen, Germany. [Rieger, J.] BASF SE, D-67056 Ludwigshafen, Germany. [Niemeyer, J.] Univ Gottingen, Inst Appl Biotechnol Trop, D-37074 Gottingen, Germany. [Coates, J.] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. EM jthieme@bnl.gov; jsedlma@gwdg.de; sgleber@gwdg.de; jens.rieger@basf-ag.de; jniemey1@gwdg.de; jdcoates@berkeley.edu RI Thieme, Juergen/D-6814-2013; Rieger, Jens/L-1335-2013 NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1039 EP A1039 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400118 ER PT J AU Turick, CE Ekechukwu, AA Milliken, CE Beam, DC Casadevall, A Dadachova, E AF Turick, C. E. Ekechukwu, A. A. Milliken, C. E. Beam, D. C. Casadevall, A. Dadachova, E. TI Electrochemical exploration of mechanisms for radioprotection and enhanced microbial growth in radiation fields SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Turick, C. E.; Ekechukwu, A. A.; Milliken, C. E.; Beam, D. C.] Savannah River Natl Lab, Aiken, SC 29808 USA. [Casadevall, A.; Dadachova, E.] Albert Einstein Coll Med, Bronx, NY 10467 USA. EM Chalres.Turick@srnl.doe.gov RI Dadachova, Ekaterina/I-7838-2013 NR 2 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1061 EP A1061 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400162 ER PT J AU Um, W Zachara, JM Liu, C AF Um, W. Zachara, J. M. Liu, C. TI U(VI) desorption from capillary fringe sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Um, W.; Zachara, J. M.; Liu, C.] Pacific NW Natl Lab, Richland, WA 99352 USA. EM wooyong.um@pnl.gov RI Liu, Chongxuan/C-5580-2009 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1065 EP A1065 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400170 ER PT J AU Veil, JA AF Veil, J. A. TI Options for management of produced water SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Veil, J. A.] Argonne Natl Lab, Washington, DC 20024 USA. EM jveil@anl.gov NR 0 TC 1 Z9 1 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1078 EP A1078 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400197 ER PT J AU Vesper, DJ Edenborn, HM Capo, RC AF Vesper, D. J. Edenborn, H. M. Capo, R. C. TI Flux of CO2 from a flooded bituminous coal mine, Allegheny County PA, USA SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Vesper, D. J.] W Virginia Univ, Dept Geol & Geog, Morgantown, WV 26506 USA. [Edenborn, H. M.] US DOE, Geosci Div, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Capo, R. C.] Univ Pittsburgh, Dept Geol & Planetary Sci, Pittsburgh, PA 15260 USA. EM djvesper@mail.wvu.edu; edenborn@netl.doe.gov; rcapo@pitt.edu NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1080 EP A1080 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400201 ER PT J AU Vlcek, L Chialvo, AA Rother, G Cole, DR AF Vlcek, Lukas Chialvo, Ariel A. Rother, Gernot Cole, David R. TI Excess near-critical adsorption of carbon dioxide in porous silica: Linking theory, simulations, and experiment SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Vlcek, Lukas; Chialvo, Ariel A.; Rother, Gernot; Cole, David R.] ORNL, Geochem & Interfacial Sci Grp, Oak Ridge, TN USA. EM vlcekl1@ornl.gov RI Vlcek, Lukas/N-7090-2013; Rother, Gernot/B-7281-2008 OI Vlcek, Lukas/0000-0003-4782-7702; Rother, Gernot/0000-0003-4921-6294 NR 2 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1084 EP A1084 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400208 ER PT J AU Wallace, AF Raiteri, P Gale, JD Deyoreo, JJ Banfield, JF AF Wallace, A. F. Raiteri, P. Gale, J. D. Deyoreo, J. J. Banfield, J. F. TI Atomistic simulation of metal-carbonate cluster formation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wallace, A. F.; Banfield, J. F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Raiteri, P.; Gale, J. D.] Curtin Univ Technol, Dept Chem, Nanochem Res Inst, Perth, WA, Australia. [Banfield, J. F.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM afwallace@lbl.gov; paolo@ivec.org; julian@ivec.org; JJDeYoreo@lbl.gov; jbanfield@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1094 EP A1094 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400228 ER PT J AU Wang, YF Xu, HF Merino, E AF Wang, Yifeng Xu, Huifang Merino, Enrique TI Nonlinear dynamics of Banded Iron Formation precipitation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wang, Yifeng] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Xu, Huifang] Univ Wisconsin, Dept Geol & Geophys, Madison, WI 53706 USA. [Xu, Huifang] Univ Wisconsin, NASA Astrobiol Inst, Madison, WI 53706 USA. [Merino, Enrique] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA. NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1110 EP A1110 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400261 ER PT J AU Wasylenki, LE Brennecka, GA Bargar, JR Anbar, AD AF Wasylenki, L. E. Brennecka, G. A. Bargar, J. R. Anbar, A. D. TI The mechanism of uranium isotope fractionation during adsorption to Mn oxyhydroxide SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wasylenki, L. E.; Brennecka, G. A.; Anbar, A. D.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA. [Bargar, J. R.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. [Anbar, A. D.] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA. EM laura.w@asu.edu NR 4 TC 0 Z9 1 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1116 EP A1116 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400272 ER PT J AU Watkins, J Peterson, B Depaolo, DJ AF Watkins, J. Peterson, B. Depaolo, D. J. TI Isotope separation by diffusion: Competing effects of chemical and isotopic exchange SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Watkins, J.; Peterson, B.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Depaolo, D. J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM jwatkins@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1117 EP A1117 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400275 ER PT J AU Watson, DB Tang, G Parker, JC Brooks, SC AF Watson, D. B. Tang, G. Parker, J. C. Brooks, S. C. TI Quantifying nitrate migration and natural attenuation in a shale/saprolite pathway from a former waste disposal site SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Watson, D. B.; Tang, G.; Brooks, S. C.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Parker, J. C.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. EM watsondb@ornl.gov; tangg@ornl.gov; jparker@utk.edu; brookssc@ornl.gov RI Brooks, Scott/B-9439-2012; Tang, Guoping/A-5141-2010 OI Brooks, Scott/0000-0002-8437-9788; Tang, Guoping/0000-0003-1090-3564 NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1118 EP A1118 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400276 ER PT J AU Waychunas, GA Sung, J Shen, YR AF Waychunas, G. A. Sung, J. Shen, Y. R. TI Nanoparticle surface properties deduced from single crystal mineral/water interface studies SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Waychunas, G. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Sung, J.; Shen, Y. R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM gawaychunas@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1118 EP A1118 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400277 ER PT J AU Weare, JH Bylaska, EJ Bogatko, S Cauet, E Fulton, J AF Weare, John H. Bylaska, Eric J. Bogatko, Stuart Cauet, Emilie Fulton, John TI 1(St) principle dynamical simulation of hydrogen bond structure, dynamics and simple reactions in the hydration shells of highly charged metal ions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Weare, John H.; Bogatko, Stuart; Cauet, Emilie] UCSD, San Diego, CA 92093 USA. [Bylaska, Eric J.; Fulton, John] Pacific NW Natl Lab, Richland, WA 99354 USA. EM jweare@ucsd.edu RI Bogatko, Stuart/C-8394-2013 OI Bogatko, Stuart/0000-0001-9759-2580 NR 1 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1119 EP A1119 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400278 ER PT J AU Weare, JH Moller, N Duan, Z Cauet, E Bylaska, EJ AF Weare, John H. Moller, Nancy Duan, Zhenhao Cauet, Emilie Bylaska, Eric J. TI Predicting the chemical and physical properties of geothermal fluids: Model development and molecular level theoretical understanding SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Weare, John H.; Moller, Nancy; Cauet, Emilie] UCSD, San Diego, CA 92093 USA. [Duan, Zhenhao] Inst Geol & Geophys, Beijing 100029, Peoples R China. [Bylaska, Eric J.] Pacific NW Natl Lab, Richland, WA 99354 USA. EM jweare@ucsd.edu NR 0 TC 0 Z9 0 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1119 EP A1119 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400279 ER PT J AU Wellman, DM Zhong, LR Mattigod, SV Szecsody, J Zhang, F AF Wellman, Dawn M. Zhong, Lirong Mattigod, Shas V. Szecsody, Jim Zhang, Fred TI In situ immobilization of radionuclide and metallic contaminants in deep vadose zone environments via reactant microfoams SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wellman, Dawn M.] US DOE, Off Environm Management, Germantown, MD USA. [Wellman, Dawn M.; Zhong, Lirong; Mattigod, Shas V.; Szecsody, Jim; Zhang, Fred] Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 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 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1125 EP A1125 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400290 ER PT J AU Wesolowski, DJ Machesky, ML Lvov, SN Predota, M Ridley, MK Cummings, PT AF Wesolowski, David J. Machesky, Michael L. Lvov, Serguei N. Predota, Milan Ridley, Moira K. Cummings, Peter T. TI On the temperature dependence of mineral surface protonation and ion adsorption reactions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wesolowski, David J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Machesky, Michael L.] Univ Illinois, Champaign, IL 61820 USA. [Lvov, Serguei N.] Penn State Univ, University Pk, PA 16802 USA. [Predota, Milan] Univ S Bohemia, Ceske Budejovice 37005, Czech Republic. [Ridley, Moira K.] Texas Tech Univ, Lubbock, TX 79409 USA. [Cummings, Peter T.] Vanderbilt Univ, Nashville, TN 37235 USA. EM wesolowskid@ornl.gov RI Predota, Milan/A-2256-2009; Cummings, Peter/B-8762-2013 OI Predota, Milan/0000-0003-3902-0992; Cummings, Peter/0000-0002-9766-2216 NR 0 TC 0 Z9 0 U1 3 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1127 EP A1127 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400294 ER PT J AU West, JB Kreuzer, HW Ehleringer, JR AF West, J. B. Kreuzer, H. W. Ehleringer, J. R. TI Dissecting the large-scale spatiotemporal variation in Ricinus communis (Castor Bean) seed oil delta H-2 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [West, J. B.] Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX 77843 USA. [Kreuzer, H. W.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ehleringer, J. R.] Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA. EM jbwest@tamu.edu; helen.kreuzer@pnl.gov; jim.ehleringer@utah.edu RI West, Jason/G-8833-2012 NR 0 TC 0 Z9 0 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1127 EP A1127 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400295 ER PT J AU Williams, KH N'Guessan, AL Wilkins, MJ Long, PE AF Williams, Kenneth H. N'Guessan, A. Lucie Wilkins, Michael J. Long, Philip E. TI Formation of Selenium nanospheres accompanying bioremediation of a Uranium-contaminated aquifer SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Williams, Kenneth H.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [N'Guessan, A. Lucie; Wilkins, Michael J.; Long, Philip E.] Pacific NW Nat Lab, Richland, WA 99352 USA. EM khwilliams@lbl.gov RI Wilkins, Michael/A-9358-2013; Williams, Kenneth/O-5181-2014; Long, Philip/F-5728-2013 OI Williams, Kenneth/0000-0002-3568-1155; Long, Philip/0000-0003-4152-5682 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1133 EP A1133 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400307 ER PT J AU Wright, K Fujita, Y Henriksen, J Spycher, N Conrad, M AF Wright, Karen Fujita, Yoshiko Henriksen, James Spycher, Nic Conrad, Mark TI Investigations of the influence of microbial cells on phosphate mineral precipitation SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Spycher, Nic; Conrad, Mark] Lawrence Berkeley Natl Lab, Berkeley, CA USA. EM Karen.Wright@inl.gov; Yoshiko.Fujita@inl.gov; James.Henriksen@inl.gov; Nspycher@lbl.gov; Msconrad@lbl.gov RI Fujita, Yoshiko/S-2007-2016 OI Fujita, Yoshiko/0000-0002-4472-4102 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1142 EP A1142 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400325 ER PT J AU Wu, T Shelobolina, E Xu, HF Kukkadapu, R Roden, E AF Wu, Tao Shelobolina, Evgenya Xu, Huifang Kukkadapu, Ravi Roden, Eric TI Experimental studies of microbial Fe(III)-phyllosilicate reduction in subsurface sediments SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wu, Tao; Shelobolina, Evgenya; Xu, Huifang; Roden, Eric] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA. [Kukkadapu, Ravi] Pacific NW Natl Lab, Richland, WA 99352 USA. EM twu6@wisc.edu; shelobolina@wisc.edu; hfxu@geology.wisc.edu; ravi.kukkadapu@pnl.gov; eroden@geology.wisc.edu NR 0 TC 0 Z9 0 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1146 EP A1146 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400333 ER PT J AU Wu, WM Watson, D Mehlhorn, T Earles, J Boyanov, M Gihring, T Schadt, C Lowe, K Phillips, J Kemner, K Spalding, B Criddle, CS Jardine, P Brooks, S AF Wu, W. -M. Watson, D. Mehlhorn, T. Earles, J. Boyanov, M. Gihring, T. Schadt, C. Lowe, K. Phillips, J. Kemner, K. Spalding, B. Criddle, C. S. Jardine, P. Brooks, S. TI In situ biostimulation of U(VI) reduction and immobilization using emulsified vegetable oil SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Wu, W. -M.; Criddle, C. S.] Stanford Univ, Stanford, CA 94305 USA. [Watson, D.; Mehlhorn, T.; Earles, J.; Gihring, T.; Schadt, C.; Lowe, K.; Phillips, J.; Spalding, B.; Jardine, P.; Brooks, S.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Boyanov, M.; Kemner, K.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. EM billwu@stanford.edu RI Brooks, Scott/B-9439-2012; Schadt, Christopher/B-7143-2008; Phillips, Jana/G-4755-2016 OI Brooks, Scott/0000-0002-8437-9788; Schadt, Christopher/0000-0001-8759-2448; Phillips, Jana/0000-0001-9319-2336 NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1147 EP A1147 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400335 ER PT J AU Xu, H Hickmott, DD Zhao, Y Zhang, J Wei, Q Vogel, SC Wang, L AF Xu, H. Hickmott, D. D. Zhao, Y. Zhang, J. Wei, Q. Vogel, S. C. Wang, L. TI High-P/T synchrotron X-ray and neutron diffraction study of carbonate minerals SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Xu, H.; Hickmott, D. D.; Wei, Q.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. [Zhao, Y.; Zhang, J.; Vogel, S. C.] Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. [Wang, L.] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA. RI Lujan Center, LANL/G-4896-2012 NR 0 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1159 EP A1159 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400359 ER PT J AU Yang, H Kreuzer, HW Shi, L Ostrom, NE Gandhi, H Hegg, EL AF Yang, H. Kreuzer, H. W. Shi, L. Ostrom, N. E. Gandhi, H. Hegg, E. L. TI Using hydrogen isotopes to assess proton flux during biological hydrogen production: Part 1 SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Yang, H.; Hegg, E. L.] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA. [Kreuzer, H. W.; Shi, L.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ostrom, N. E.; Gandhi, H.] Michigan State Univ, Dept Zool, E Lansing, MI 48824 USA. EM Helen.Kreuzer@pnl.gov; Ostromn@msu.edu; EricHegg@msu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1172 EP A1172 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400385 ER PT J AU Yang, L Tulk, CA Klug, DD Moudrakovski, IL Ratcliffe, CI Ripmeester, JA Chakoumakos, BC Ehm, L Martin, CD Parise, JB AF Yang, L. Tulk, C. A. Klug, D. D. Moudrakovski, I. L. Ratcliffe, C. I. Ripmeester, J. A. Chakoumakos, B. C. Ehm, L. Martin, C. D. Parise, J. B. TI A new structure of Xenon clathrate hydrate SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Yang, L.; Tulk, C. A.; Chakoumakos, B. C.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Klug, D. D.; Moudrakovski, I. L.; Ratcliffe, C. I.; Ripmeester, J. A.] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada. [Ehm, L.; Parise, J. B.] SUNY Stony Brook, Inst Mineral Phys, Dept Geosci, Stony Brook, NY 11794 USA. [Martin, C. D.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA. RI Chakoumakos, Bryan/A-5601-2016; Tulk, Chris/R-6088-2016 OI Chakoumakos, Bryan/0000-0002-7870-6543; Tulk, Chris/0000-0003-3400-3878 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1175 EP A1175 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400390 ER PT J AU Ye, M Lu, D Miller, G Curtis, GP Meyer, PD Yabusaki, SB AF Ye, M. Lu, D. Miller, G. Curtis, G. P. Meyer, P. D. Yabusaki, S. B. TI Assessment of predictive uncertainty in coupled groundwater reactive transport modeling SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Ye, M.; Lu, D.; Miller, G.] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA. [Curtis, G. P.] US Geol Survey, Div Water Resources, Menlo Pk, CA 94025 USA. [Meyer, P. D.; Yabusaki, S. B.] Pacific NW Natl Lab, Hydrol Tech Grp, Richland, WA 99352 USA. EM mye@fsu.edu; gpcurtis@usgs.gov; Philip.Meyer@pnl.gov; yabusaki@pnl.gov RI Ye, Ming/A-5964-2008 NR 3 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1183 EP A1183 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400406 ER PT J AU Yee, N Parikh, M Lin, CC Kukkadapu, R Barkay, T AF Yee, Nathan Parikh, Madhavi Lin, Chu-Ching Kukkadapu, Ravi Barkay, Tamar TI Reduction of Hg(II) to Hg(0) by biogenic magnetite SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Yee, Nathan; Parikh, Madhavi; Lin, Chu-Ching; Barkay, Tamar] Rutgers State Univ, New Brunswick, NJ 08903 USA. [Kukkadapu, Ravi] Pacific NW Natl Lab, Richland, WA 99352 USA. EM nyee@envsci.rutgers.edu NR 0 TC 0 Z9 0 U1 3 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1184 EP A1184 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400408 ER PT J AU Zhang, C Prodan, C Slater, L Bendiganavale, A Ntarlagiannis, D Hubbard, S AF Zhang, Chi Prodan, Camelia Slater, Lee Bendiganavale, Ashwini Ntarlagiannis, Dimitrios Hubbard, Susan TI Low-frequency dielectric spectroscopy measurements on sulfate-reducing bacteria cell suspensions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Zhang, Chi; Slater, Lee; Ntarlagiannis, Dimitrios] Rutgers State Univ, Dept Earth & Environm Sci, Newark, NJ 07102 USA. [Prodan, Camelia; Bendiganavale, Ashwini] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. [Hubbard, Susan] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. EM chizhang@pegasus.rutgers.edu RI Hubbard, Susan/E-9508-2010 NR 0 TC 0 Z9 0 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1202 EP A1202 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400444 ER PT J AU Zhang, S Du, J Xu, C Schwehr, KA Ho, Y Santschi, PH Kaplan, DI AF Zhang, S. Du, J. Xu, C. Schwehr, K. A. Ho, Y. Santschi, P. H. Kaplan, D. I. TI Mobility of iodine (I-129 and I-127) species in sediment columns from the Savannah River Site SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Zhang, S.; Xu, C.; Schwehr, K. A.; Ho, Y.; Santschi, P. H.] Texas A&M Univ, Galveston, TX 77551 USA. [Du, J.] E China Normal Univ, Shanghai 200062, Peoples R China. [Kaplan, D. I.] Savannah River Natl Lab, Aiken, SC USA. EM saijinzhang03@hotmail.com; jzdu@sklec.ecnu.edu.cn; schwehrk@tamug.edu; santschi@tamug.edu; daniel.kaplan@srnl.doe.gov RI Santschi, Peter/D-5712-2012; zhang, saijin/A-4986-2013; Ho, Yi-Fang/H-4198-2013 NR 1 TC 0 Z9 0 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1211 EP A1211 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400463 ER PT J AU Zhang, Z Fenter, P Wesolowski, DJ AF Zhang, Z. Fenter, P. Wesolowski, D. J. TI Atomic structure at the quartz (101) - water interface by X-ray scattering method SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Meeting Abstract CT Conference on Goldschmidt 2010 - Earth, Energy, and the Environment CY JUN 13-18, 2010 CL Knoxville, TN C1 [Zhang, Z.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Wesolowski, D. J.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM zhanzhang@anl.gov; fenter@anl.gov; wesolowskid@ornl.gov RI Zhang, Zhan/A-9830-2008 OI Zhang, Zhan/0000-0002-7618-6134 NR 1 TC 0 Z9 0 U1 1 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JUN PY 2010 VL 74 IS 12 SU 1 BP A1218 EP A1218 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 676TL UT WOS:000283941400476 ER PT J AU El Hariri, M Abercrombie, RE Rowe, CA do Nascimento, AF AF El Hariri, Maya Abercrombie, Rachel E. Rowe, Charlotte A. do Nascimento, Aderson F. TI The role of fluids in triggering earthquakes: observations from reservoir induced seismicity in Brazil SO GEOPHYSICAL JOURNAL INTERNATIONAL LA English DT Article DE Permeability and porosity; Fracture and flow; Fault zone rheology; Earthquake source observations ID NORTHEAST BRAZIL; ACU RESERVOIR; PERMEABILITY; CALIFORNIA; PRESSURE; SITE; SEQUENCE; RUPTURE; STRESS; FAULTS AB P>We relocate precisely micro-earthquakes induced by the Acu reservoir in Brazil and observe seismicity migration consistent with pore-pressure diffusion on a single fault zone. Fluids are believed to play a major role in triggering tectonic earthquakes; reservoir induced seismicity provides a natural laboratory in which to investigate the spatio-temporal evolution and triggering of earthquakes caused by fluid and pore-pressure diffusion. Between 1994 and 1997, 267 earthquakes (M(L) < 2.1) were recorded and located beneath the Acu reservoir. The seismicity increased several months following annual water level peaks, implying that pore-pressure diffusion is the principal triggering mechanism. The small station spacing and very low-attenuation, Precambrian basement, rock enabled starting earthquake locations with uncertainties of only a few hundred metres. We relocate 155 earthquakes from the largest cluster at Acu using waveform cross-correlation to obtain groups of similar events. We use these groups to improve the pick accuracy (to subsample accuracy in 200 sample per second data), and then invert for more accurate hypocentral locations. Our uncertainties are on the order of 10 m, and our locations are more tightly clustered. We observe temporal migration of the earthquakes, both along strike, and to increasing depth. We observe a seismicity migration rate between 15 and 58 m d-1. The rate is highest during the time of peak seismicity rate, and there is some suggestion that the rate decreases with increasing depth. Peak depth in seismicity is reached 175 d after the water peak, that is 192 d after the water low, and the maximum depth then decreases at a similar rate to the rate of increase. Our observations are consistent with triggering by pore-pressure diffusion within a heterogeneous fault zone with an average hydraulic diffusivity of similar to 0.06 m2 s-1 and fracture permeability of similar to 6 x 10-16 m2. C1 [El Hariri, Maya; Abercrombie, Rachel E.] Boston Univ, Boston, MA 02478 USA. [Rowe, Charlotte A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [do Nascimento, Aderson F.] Univ Fed Rio Grande do Norte, Dept Geofis, BR-59072970 Natal, RN, Brazil. RP El Hariri, M (reprint author), New Mexico Inst Min & Technol, Socorro, NM 87801 USA. EM mhariri@nmt.edu RI Geofisica Petroleo, Inct/K-2330-2013; OI Abercrombie, Rachel/0000-0003-4515-5420; Rowe, Charlotte/0000-0001-5803-0147 FU CNPq (Brazilian Funding Agency) [303706/2008-2]; British NERC; Department of Energy; Los Alamos National Laboratory (LANL); Boston University/Hariri Foundation FX We re grateful for the constructive comments of the Associate Editor, and two anonymous reviewers which improved this manuscript. MEH was funded by the Boston University/Hariri Foundation Scholarship Program for graduate study at Boston University, and AdN was supported by a research fellowship (Proc. 303706/2008-2) from CNPq (Brazilian Funding Agency). RA and AdN received travel support from the British NERC. We acknowledge support from the Department of Energy and Los Alamos National Laboratory (LANL), particularly the Institute of Geophysics and Planetary Physics at LANL. This is LANL publication number LA-UR 09-07024.This work benefited from discussions with R. Lunn, Z. Shipton, R. Viesca and G. Beroza. NR 41 TC 24 Z9 24 U1 1 U2 13 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0956-540X J9 GEOPHYS J INT JI Geophys. J. Int. PD JUN PY 2010 VL 181 IS 3 BP 1566 EP 1574 DI 10.1111/j.1365-246X.2010.04554.x PG 9 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 596WO UT WOS:000277716400026 ER PT J AU Schofield, PF Smith, AD Mosselmans, JFW Ohldag, H Scholl, A Raoux, S Cressey, G Cressey, BA Quinn, PD Kirk, CA Hogg, SC AF Schofield, Paul F. Smith, Andrew D. Mosselmans, J. Frederick W. Ohldag, Hendrik Scholl, Andreas Raoux, Simone Cressey, Gordon Cressey, Barbara A. Quinn, Paul D. Kirk, Caroline A. Hogg, Simon C. TI X-ray Spectromicroscopy of Mineral Intergrowths in the Santa Catharina Meteorite SO GEOSTANDARDS AND GEOANALYTICAL RESEARCH LA English DT Article DE Santa Catharina meteorite; antitaenite; X-ray photo-emission electron microscopy; XPEEM; microfocus X-ray spectroscopy; non-destructive analysis; Meteorite Santa Catharina; antitaenite; microscopie electronique a photo-emission de rayons X; XPEEM; spectrometrie d'absorption des rayons X microfocalisee; analyse non-destructive ID PHOTOEMISSION ELECTRON-MICROSCOPY; IRON OXIDATION-STATES; 3D TRANSITION-METALS; ABSORPTION-SPECTROSCOPY; SYNCHROTRON-RADIATION; CLOUDY ZONE; EDGE; PHASES; PEEM; MICROSPECTROSCOPY AB This work describes the application of microfocus X-ray absorption spectroscopy (XAS) and X-ray photo-emission electron microscopy (XPEEM) to the study of the complex mineralogical intergrowths within the Santa Catharina meteorite. The Santa Catharina meteorite of this study (BM52283 from the meteorite collection of the Natural History Museum, London, UK) primarily comprises a taenite bulk host phase (Fe:Ni ratio = 70.9 +/- 0.8%:29.1 +/- 0.8%) with a set of oxide-bearing cloudy zone textured regions (Fe:Ni:O ratio = 40.4 +/- 0.3%:49.0 +/- 0.7%:10.6 +/- 0.8% at the core and Fe:Ni:O ratio = 34.4 +/- 1.5%:42.7 +/- 0.6%:22.9 +/- 1.8% towards the rims) and numerous schreibersite (Fe:Ni:P ratio = 38.6 +/- 1.6%:38.4 +/- 0.9%:23.0 +/- 0.5%) inclusions. Between the schreibersite and the taenite are rims up to 50 mu m across of Ni-rich kamacite (Fe:Ni ratio = 93.4 +/- 0.4%:6.6 +/- 0.5%). No chemical zoning or spatial variations in the Fe and Ni speciation was observed within either the schreibersite or the kamacite phases. The oxide-bearing cloudy zone textured regions mostly comprise metallic Fe-Ni alloy, predominantly tetrataenite. Within the oxide phases, the Fe is predominantly, but not entirely, tetrahedrally co-ordinated Fe3+ and the Ni is octahedrally co-ordinated Ni2+. Structural analysis supports the suggestion that non-stoichiometric Fe(2)NiO(4) trevorite is the oxide phase. The trevorite:tetrataenite ratio increases at the edges of the oxide-bearing cloudy zone textured regions indicating increased oxidation at the edges of these zones. The spatial resolution of the XPEEM achieved was between 110 and 150 nm, which precluded the study of either the previously reported similar to 10 nm precipitates of tetrataenite within the bulk taenite or any antitaenite.Ce travail decrit l'application des techniques de spectrometrie d'absorption des rayons X microfocalisee (XAS) et de microscopie electronique a photo-emission de rayons X (XPEEM) a l'etude de la mineralogie complexe des intercroissances de la meteorite de Santa Catharina. La meteorite de Santa Catharina de cette etude (BM52283 de la collection de meteorites du Museum d'Histoire Naturelle, Londres, Royaume-Uni) comprend essentiellement une taenite comme phase minerale hote (proportions de Fe:Ni = 70.9 +/- 0.8%:29.1 +/- 0.8%) avec un ensemble de regions caracterisees par des zones nuageuses contenant des oxydes (proportions de Fe:Ni:O = 40.4 +/- 0.3%:49.0 +/- 0.7%:10.6 +/- 0.8% au niveau des coeurs et de 34.4 +/- 1.5%:42.7 +/- 0.6%:22.9 +/- 1.8% vers les bords) et de nombreuses inclusions de schreibersite (Fe:Ni:P = 38.6 +/- 1.6%:38.4 +/- 0.9%:23.0 +/- 0.5%). Entre la schreibersite et la taenite des bords de kamacite riche en Ni d'un diametre pouvant atteindre 50 micrometres s'observent (proportions de Fe:Ni = 93.4 +/- 0.4%:6.6 +/- 0.5%). Aucun zonage chimique et aucune variation spatiale de la speciation de Fe et Ni n'ont ete observes dans les schreibersites et dans les kamacites. Les regions caracterisees par des zones nuageuses a oxydes contiennent essentiellement des alliages metalliques de Fe-Ni, surtout de la tetrataenite. Dans les oxydes le Fe est principalement, mais pas entierement, en coordinence tetraedrique Fe3+ et le Ni en coordinence octaedrique Ni2+. L'analyse structurale appuie la suggestion que la trevorite Fe(2)NiO(4) non stoechiometrique est la phase oxyde. Le rapport trevorite/tetrataenite augmente au nivea des bords des regions caracterisees par des zones nuageuses a oxydes indiquant une augmentation du niveau d'oxydation au niveau des bords de ces zones. La resolution spatiale atteinte pour l'XPEEM se situait entre 110 et 150 nm, ce qui a empeche l'etude des precipites de tetrataenite precedemment signales et d'une taille d'environ 10 nm ainsi que de toute antitaenite. C1 [Schofield, Paul F.; Cressey, Gordon; Kirk, Caroline A.] Nat Hist Museum, Dept Mineral, London SW7 5BD, England. [Smith, Andrew D.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England. [Mosselmans, J. Frederick W.; Quinn, Paul D.] Diamond Light Source Ltd, Didcot OX11 0DE, Oxon, England. [Ohldag, Hendrik; Scholl, Andreas; Raoux, Simone] Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Cressey, Barbara A.] Univ Southampton, Sci & Engn Elect Microscopy Ctr, Dept Chem, Southampton SO17 1BJ, Hants, England. [Hogg, Simon C.] Univ Loughborough, Dept Mat, Loughborough LE11 3TU, Leics, England. RP Schofield, PF (reprint author), Nat Hist Museum, Dept Mineral, Cromwell Rd, London SW7 5BD, England. EM p.schofield@nhm.ac.uk RI mosselmans, j fred/H-4985-2013; Scholl, Andreas/K-4876-2012; Ohldag, Hendrik/F-1009-2014; Raoux, Simone/G-3920-2016 FU Advanced Light Source; Diamond Light Source; STFC Daresbury Laboratory; NERC FX This work was carried out with the support of the Advanced Light Source and the Diamond Light Source. The authors gratefully acknowledge Professor C. M. B. Henderson, the STFC Daresbury Laboratory and the NERC for funding under the Envirosynch programme. The authors thank A.H.J. Wighton (NHM) for his work during the sample preparation. NR 55 TC 5 Z9 5 U1 2 U2 12 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1639-4488 J9 GEOSTAND GEOANAL RES JI Geostand. Geoanal. Res. PD JUN PY 2010 VL 34 IS 2 BP 145 EP 159 DI 10.1111/j.1751-908X.2010.00038.x PG 15 WC Geosciences, Multidisciplinary SC Geology GA 648GL UT WOS:000281678600005 ER PT J AU Clayton, CRI Priest, JA Rees, EVL AF Clayton, C. R. I. Priest, J. A. Rees, E. V. L. TI The effects of hydrate cement on the stiffness of some sands SO GEOTECHNIQUE LA English DT Article DE dynamics; fabric/structure of soils; laboratory tests; sands; stiffness ID GAS-HYDRATE; METHANE HYDRATE; PHYSICAL-PROPERTIES; POROUS-MEDIA; SEDIMENTS; CLAY; DISSOCIATION; BOTHKENNAR; INVERSION; VELOCITY AB Cementing of sediment occurs naturally in many soils and weak rocks, during both the early and late stages of diagenesis. This paper reports the results of a series of resonant column tests carried out on a range of sand-sized geomaterials to explore the effects of different hydrate cement morphologies on the very small strain stiffness of the materials. It is shown that the proportion of void space filled by hydrate cement, cement location, sand size and grain shape all have a significant effect on shear modulus. The change in stiffness between different host materials is affected by the density, specific surface and grading of the geomaterial. C1 [Clayton, C. R. I.; Priest, J. A.] Univ Southampton, Sch Civil Engn & Environm, Southampton SO9 5NH, Hants, England. [Rees, E. V. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Clayton, CRI (reprint author), Univ Southampton, Sch Civil Engn & Environm, Southampton SO9 5NH, Hants, England. NR 61 TC 19 Z9 21 U1 2 U2 19 PU ICE PUBLISHING PI WESTMINISTER PA INST CIVIL ENGINEERS, 1 GREAT GEORGE ST, WESTMINISTER SW 1P 3AA, ENGLAND SN 0016-8505 EI 1751-7656 J9 GEOTECHNIQUE JI Geotechnique PD JUN PY 2010 VL 60 IS 6 BP 435 EP 445 DI 10.1680/geot.2010.60.6.435 PG 11 WC Engineering, Geological SC Engineering GA 602ZG UT WOS:000278177100004 ER PT J AU Oostrom, M Truex, MJ Tartakovsky, GD Wietsma, TW AF Oostrom, Mart Truex, Michael J. Tartakovsky, Guzel D. Wietsma, Tom W. TI Three-Dimensional Simulation of Volatile Organic Compound Mass Flux from the Vadose Zone to Groundwater SO GROUND WATER MONITORING AND REMEDIATION LA English DT Article ID CARBON-TETRACHLORIDE; CAPILLARY-FRINGE; POROUS-MEDIA; HANFORD SITE; WATER; TRANSPORT; MODEL; CLOSURE; NAPL AB Low-permeability layers of the vadose zone containing volatile organic compounds (VOCs) may persist as source zones for long time periods and may provide contamination to groundwater. At sites with low recharge rates, where vapor migration is the dominant transport process, the impact of vadose zone sources on groundwater may be difficult to assess. Typical assessment methods include one-dimensional numerical and analytical techniques. The one-dimensional approaches only consider groundwater coupling options through boundary conditions at the water table and may yield artificially high mass flux results when transport is assumed to occur by gas-phase diffusion between a source and an interface with a zero concentration boundary condition. Improvements in mass flux assessments for VOCs originating from vadose zone sources may be obtained by coupling vadose zone gas transport and dissolved contaminant transport in the saturated zone and by incorporating the inherent three-dimensional nature of gas-phase transport, including the potential of density-driven advection. This paper describes a series of three-dimensional simulations using data from the U.S. Department of Energy's Hanford site, where carbon tetrachloride is present in a low-permeability zone about 30 m above the groundwater. Results show that, for most cases, only a relatively small amount of the contaminant emanating from the source zone partitions into the groundwater and that density-driven advection is only important when relatively high source concentrations are considered. C1 [Oostrom, Mart; Truex, Michael J.; Tartakovsky, Guzel D.; Wietsma, Tom W.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Oostrom, M (reprint author), Pacific NW Natl Lab, POB 999,MS K9-33, Richland, WA 99352 USA. EM mart.oostrom@pnl.gov; mj.truex@pnl.gov; guzel.tartakovsky@pnl.gov FU Battelle Memorial Institute for the Department of Energy (DOE) [DE-AC05-76RL01830] FX The Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the Department of Energy (DOE) under Contract DE-AC05-76RL01830. This work was funded through the Department of Energy's Office of Environmental Management as a part of a project under Engineering and Technology, Groundwater and Soil Remediation. Partial support for the senior author was provided by the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research and located at PNNL. NR 23 TC 9 Z9 11 U1 1 U2 18 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1069-3629 J9 GROUND WATER MONIT R JI Ground Water Monit. Remediat. PD SUM PY 2010 VL 30 IS 3 BP 45 EP 56 DI 10.1111/j1745-6592.2010.001285.x PG 12 WC Water Resources SC Water Resources GA 640PH UT WOS:000281063400004 ER PT J AU Brusseau, ML Rohay, V Truex, MJ AF Brusseau, Mark L. Rohay, Virginia Truex, Michael J. TI Analysis of Soil Vapor Extraction Data to Evaluate Mass-Transfer Constraints and Estimate Source-Zone Mass Flux SO GROUND WATER MONITORING AND REMEDIATION LA English DT Article ID PERFORMANCE; SITE AB Methods are developed to use data collected during cyclic operation of soil vapor extraction (SVE) systems to help characterize the magnitudes and time scales of mass flux associated with vadose zone contaminant sources. Operational data collected at the Department of Energy's Hanford site are used to illustrate the use of such data. An analysis was conducted of carbon tetrachloride vapor concentrations collected during and between SVE operations. The objective of the analysis was to evaluate changes in concentrations measured during periods of operation and nonoperation of SVE, with a focus on quantifying temporal dynamics of the vadose zone contaminant mass flux, and associated source strength. Three mass flux terms, representing mass flux during the initial period of an SVE cycle, during the asymptotic period of a cycle, and during the rebound period, were calculated and compared. It was shown that it is possible to use the data to estimate time frames for effective operation of an SVE system if a sufficient set of historical cyclic operational data exists. This information could then be used to help evaluate changes in SVE operations, including system closure. The mass flux data would also be useful for risk assessments of the impact of vadose zone sources on groundwater contamination or vapor intrusion. C1 [Brusseau, Mark L.] Univ Arizona, Sch Earth & Environm Sci, Tucson, AZ 85721 USA. [Rohay, Virginia] CH2M Hill Plateau Remediat Co, Richland, WA 99352 USA. [Truex, Michael J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Brusseau, ML (reprint author), Univ Arizona, Sch Earth & Environm Sci, Tucson, AZ 85721 USA. EM brusseau@Ag.arizona.edu FU Department of Energy's Office of Environmental Management; NIEHS [ES04940] FX This work was funded through the Department of Energy's Office of Environmental Management as a part of a project under Engineering and Technology, Groundwater and Soil Remediation, with additional support from the NIEHS Superfund Research Program (ES04940). We thank Dave Becker (U.S. Army Corps of Engineers) and the reviewers for their thoughtful and constructive comments. NR 9 TC 16 Z9 16 U1 2 U2 15 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1069-3629 J9 GROUND WATER MONIT R JI Ground Water Monit. Remediat. PD SUM PY 2010 VL 30 IS 3 BP 57 EP 64 DI 10.1111/j1745-6592.2010.001286.x PG 8 WC Water Resources SC Water Resources GA 640PH UT WOS:000281063400005 PM 23516336 ER PT J AU Sugarman, SL Toohey, R Goans, R Christensen, D Wiley, A AF Sugarman, Stephen L. Toohey, Richard Goans, Ronald Christensen, Doran Wiley, Albert TI RAPID INTERNAL DOSE MAGNITUDE ESTIMATION IN EMERGENCY SITUATIONS USING ANNUAL LIMITS ON INTAKE (ALI) COMPARISONS SO HEALTH PHYSICS LA English DT Article; Proceedings Paper CT 12th Coordination and Planning Meeting of the Radiation-Emergency-Medical-Preparedness-and-Assistance-Network CY OCT 15-17, 2008 CL Buenos Aires, ARGENTINA SP Radiat Emergency Med Preparedness & Assistance Network DE World Health Organization; accidents, handling; annual limit on intake; contamination, internal AB It is crucial to integrate health physics into the medical management of radiation illness or injury. The key to early medical management is not necessarily radiation dose calculation and assignment, but radiation dose magnitude estimation. The magnitude of the dose can be used to predict potential biological consequences and the corresponding need for medical intervention. It is, therefore, imperative that physicians and health physicists have the necessary tools to help guide this decision making process. All internal radiation doses should be assigned using proper dosimetry techniques, but the formal internal dosimetry process often takes time that may delay treatment, thus reducing the efficacy of some medical countermeasures. Magnitudes of inhalation or ingestion intakes or intakes associated with contaminated wounds can be estimated by applying simple rules of thumb to sample results or direct measurements and comparing the outcome to known limits for a projection of dose magnitude. Although a United States regulatory unit, the annual limit on intake (ALI) is based on committed dose, and can therefore be used as a comparison point. For example, internal dose magnitudes associated with contaminated wounds can be estimated by comparing a direct wound measurement taken soon after the injury to the product of the ingestion ALI and the associated f(1) value (the fractional uptake from the small intestine to the blood). International Commission on Radiation Protection Publication 96, as well as other resources, recommends treatment based on ALI determination. Often, treatment decisions have to be made with limited information. However, one can still perform dose magnitude estimations in order to help effectively guide the need for medical treatment by properly assessing the situation and appropriately applying basic rules of thumb. Health Phys. 98(6): 815-818; 2010 C1 [Sugarman, Stephen L.; Christensen, Doran; Wiley, Albert] Radiat Emergency Assistance Ctr Training Site REA, Oak Ridge, TN 37831 USA. [Goans, Ronald] REAC TS & MJW Corp, Amherst, NY 14228 USA. [Toohey, Richard] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA. RP Sugarman, SL (reprint author), Radiat Emergency Assistance Ctr Training Site REA, POB 117,MS39, Oak Ridge, TN 37831 USA. EM steve.sugarman@orise.orau.gov NR 12 TC 2 Z9 3 U1 1 U2 1 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD JUN PY 2010 VL 98 IS 6 BP 815 EP 818 DI 10.1097/01.HP.0000346797.32153.7d PG 4 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 595NX UT WOS:000277619300012 PM 20445387 ER PT J AU Coverdale, CA Jones, B Ampleford, DJ Chittenden, J Jennings, C Thornhill, JW Apruzese, JP Clark, RW Whitney, KG Dasgupta, A Davis, J Guiliani, J LePell, PD Deeney, C Sinars, DB Cuneo, ME AF Coverdale, C. A. Jones, B. Ampleford, D. J. Chittenden, J. Jennings, C. Thornhill, J. W. Apruzese, J. P. Clark, R. W. Whitney, K. G. Dasgupta, A. Davis, J. Guiliani, J. LePell, P. D. Deeney, C. Sinars, D. B. Cuneo, M. E. TI K-shell X-ray sources at the Z Accelerator SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Z Accelerator; K-shell X-rays ID ARRAY Z-PINCHES; ALUMINUM-ARRAY; WIRE ARRAYS; IMPLOSIONS; RADIATION; EMISSION; SIMULATIONS; DIAGNOSTICS; INSTABILITY; TITANIUM AB The Z Accelerator has been used for many years as a research facility for high energy density plasmas, with applications ranging from astrophysics to inertial confinement fusion. The available current at the Z Accelerator (>15 MA) has also allowed for experiments over a wide range of K-shell X-ray sources, including Al (similar to 1.6 key), Ar (similar to 3.1 key), Ti (similar to 4.8 key), stainless steel (SS, similar to 6.7 key), and Cu (similar to 8.4 keV). The K-shell sources provide excellent opportunities for studying the details of a z-pinch through radiated output in various photon energy regimes, imaging, and spectroscopy. Variations in initial load configurations illustrate the difficulty in achieving appropriate plasma conditions for K-shell emissions, particularly for stainless steel and Cu. The requirement for large diameter loads (>40 mm) enhances the growth of the magnetic Rayleigh-Taylor instability during the implosion; evidence of this instability is presented in stagnated pinch data. Data from a variety of K-shell sources and load configurations are presented and discussed to illustrate the details of the imploding and stagnated z pinches. The application of existing and modified scaling theories to the K-shell data is also described, as are multidimensional calculations that can be directly compared to the experimental observations. The recent refurbishment of the Z Accelerator will ultimately increase the coupled energy available to a load, with an anticipated peak current of 26 MA into a wire array. The current waveforms measured to date are presented, along with a brief discussion of the current status of K-shell work at the Z Accelerator. (C) 2010 Elsevier B.V. All rights reserved. C1 [Coverdale, C. A.; Jones, B.; Ampleford, D. J.; Jennings, C.; Sinars, D. B.; Cuneo, M. E.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Chittenden, J.] Univ London Imperial Coll Sci Technol & Med, London, England. [Thornhill, J. W.; Apruzese, J. P.; Dasgupta, A.; Davis, J.; Guiliani, J.] USN, Res Lab, Washington, DC 20375 USA. [Clark, R. W.; Whitney, K. G.] Berkeley Res Associates Inc, Springfield, VA 22150 USA. [LePell, P. D.] Ktech Corp Inc, Albuquerque, NM 87123 USA. [Deeney, C.] NNSA DOE, Washington, DC 20375 USA. RP Coverdale, CA (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM cacover@sandia.gov NR 42 TC 31 Z9 32 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 143 EP 152 DI 10.1016/j.hedp.2010.01.006 PG 10 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600004 ER PT J AU Dong, P Reed, SA Yi, SA Kalmykov, SY Shvets, G Downer, MC Matlis, NH Leemans, WP McGuffey, C Eulanov, SS Chvykov, V Kalintchenko, G Krushelnick, K Maksimchuk, A Matsuoka, T Thomas, AGR Yanovsky, V AF Dong, P. Reed, S. A. Yi, S. A. Kalmykov, S. Y. Shvets, G. Downer, M. C. Matlis, N. H. Leemans, W. P. McGuffey, C. Eulanov, S. S. Chvykov, V. Kalintchenko, G. Krushelnick, K. Maksimchuk, A. Matsuoka, T. Thomas, A. G. R. Yanovsky, V. TI Visualization of plasma bubble accelerators using Frequency-Domain Shadowgraphy SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Wakefield; Laser; Plasma; Accelerator; FDH ID ELECTRON-BEAMS; LASER WAKEFIELDS AB We report on generation of relativistic electron beams in the wake of a relativistically intense laser pulse traversing a 1.7 mm long atmospheric density helium gas jet. The plasma wake structure is recovered using a Frequency-Domain Holography (FDH) and Frequency-Domain Shadowgraphy (FDS). As the gas density changes. the accelerated electron beams show variations in cross-section area, divergence, total charge, and peak energy. FDH phase reconstruction shows discontinuities and large phase jumps due to plasma electrons blown out by the pump pulse, probe pulse refraction, and nonlinear propagation in plasma. However, FDS amplitude reconstruction shows bright spots that yield information about bubble formation and evolution. (C) 2009 Elsevier B.V. All rights reserved. C1 [Dong, P.; Reed, S. A.; Yi, S. A.; Kalmykov, S. Y.; Shvets, G.; Downer, M. C.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. [Matlis, N. H.; Leemans, W. P.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [McGuffey, C.; Eulanov, S. S.; Chvykov, V.; Kalintchenko, G.; Krushelnick, K.; Maksimchuk, A.; Matsuoka, T.; Thomas, A. G. R.; Yanovsky, V.] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA. RP Dong, P (reprint author), Univ Texas Austin, Dept Phys, 1 Univ Stn C1600, Austin, TX 78712 USA. EM gear@physics.utexas.edu RI Yanovsky, Victor/B-5899-2008; Thomas, Alexander/D-8210-2011; Kalmykov, Serge/A-1991-2014; Kalinchenko, Galina/G-5684-2014 OI Thomas, Alexander/0000-0003-3206-8512; Kalmykov, Serge/0000-0002-0946-857X; NR 19 TC 1 Z9 1 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 153 EP 156 DI 10.1016/j.hedp.2009.12.003 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600005 ER PT J AU Fryxell, B Kuranz, CC Drake, RP Grosskopf, MJ Budde, A Plewa, T Hearn, N Hansen, JF Miles, AR Knauer, J AF Fryxell, B. Kuranz, C. C. Drake, R. P. Grosskopf, M. J. Budde, A. Plewa, T. Hearn, N. Hansen, J. F. Miles, A. R. Knauer, J. TI The possible effects of magnetic fields on laser experiments of Rayleigh-Taylor instabilities SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE High energy density physics; Laser astrophysics; Magnetic field; Supernova; Fluid instability ID HYDRODYNAMICS CODE; SUPERNOVA; SIMULATION; EVOLUTION; SN-1987A AB The interaction of a blast wave generated in a supernova explosion with a composition discontinuity in the star's envelope produces crossed density and pressure gradients that are unstable to the growth of Rayleigh-Taylor modes. This instability is thought to be responsible for mixing of nuclear species in the ejecta and to produce observable effects in the light curve and spectrum of the explosion. Blast-wave-driven instabilities of this type have been studied extensively by numerical simulation as well as experimentally using the Omega Laser at the University of Rochester. Initial comparisons between the numerical simulations and the experiments show poor agreement. The simulations show the bubble and spike morphology of the classic Rayleigh-Taylor instability, with well-developed mushroom caps at the tips of the spikes. However, the mushroom caps seem to be completely absent from experiments with three-dimensional initial seed perturbations and are smaller than expected in two-dimensional experiments. Also, some experiments show mass extending beyond the spikes and penetrating almost to the shock front. This effect is completely absent from the numerical simulations. This paper discusses the possibility that the morphology of the instability is significantly altered by the generation of very strong magnetic fields during the laser experiments. (C) 2010 Elsevier B.V. All rights reserved. C1 [Fryxell, B.; Kuranz, C. C.; Drake, R. P.; Grosskopf, M. J.; Budde, A.] Univ Michigan, Ann Arbor, MI 48109 USA. [Plewa, T.] Florida State Univ, Tallahassee, FL 32306 USA. [Hansen, J. F.; Miles, A. R.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Knauer, J.] Univ Rochester, Rochester, NY 14627 USA. RP Fryxell, B (reprint author), Univ Michigan, 2455 Hayward St, Ann Arbor, MI 48109 USA. EM fryxell@umich.edu RI Plewa, Tomasz/C-1470-2010; Drake, R Paul/I-9218-2012 OI Plewa, Tomasz/0000-0002-1762-2565; Drake, R Paul/0000-0002-5450-9844 NR 17 TC 11 Z9 11 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 162 EP 165 DI 10.1016/j.hedp.2010.01.008 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600007 ER PT J AU Gregori, G Blaschke, DB Rajeev, PP Chen, H Clarke, RJ Huffman, T Murphy, CD Prozorkevich, AV Roberts, CD Ropke, G Schmidt, SM Smolyansky, SA Wilks, S Bingham, R AF Gregori, G. Blaschke, D. B. Rajeev, P. P. Chen, H. Clarke, R. J. Huffman, T. Murphy, C. D. Prozorkevich, A. V. Roberts, C. D. Roepke, G. Schmidt, S. M. Smolyansky, S. A. Wilks, S. Bingham, R. TI A proposal for testing subcritical vacuum pair production with high power lasers SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Quantum electrodynamics; Non-pertubative limit; Pair production; High-intensity lasers ID PARTICLE CREATION; EXPANDING UNIVERSES; SCHWINGER MECHANISM; QUANTIZED FIELDS; PULSES AB We present a proposal for testing the prediction of non-equilibrium quantum field theory below the Schwinger limit. The proposed experiments should be able to detect a measurable number of gamma rays resulting from the annihilation of pairs in the focal spot of two opposing high-intensity laser beams. We discuss the dependence of the expected number of gamma rays with the laser parameters and compare with the estimated background level of gamma hits for realistic laser conditions. (C) 2009 Elsevier By. All rights reserved. C1 [Gregori, G.; Huffman, T.; Murphy, C. D.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. [Gregori, G.; Rajeev, P. P.; Clarke, R. J.; Bingham, R.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Blaschke, D. B.] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland. [Blaschke, D. B.] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, RU-141980 Dubna, Russia. [Chen, H.; Wilks, S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Prozorkevich, A. V.; Smolyansky, S. A.] Saratov NG Chernyshevskii State Univ, RU-410026 Saratov, Russia. [Roberts, C. D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Roepke, G.] Univ Rostock, Inst Phys, D-18051 Rostock, Germany. [Schmidt, S. M.] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany. [Schmidt, S. M.] DELTA, D-44221 Dortmund, Germany. [Schmidt, S. M.] Forschungszentrum Julich GmbH, D-52428 Julich, Germany. RP Gregori, G (reprint author), Univ Oxford, Dept Phys, Parks Rd, Oxford OX1 3PU, England. EM g.gregori1@physics.ox.ac.uk OI Roberts, Craig/0000-0002-2937-1361 NR 40 TC 8 Z9 9 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 166 EP 170 DI 10.1016/j.hedp.2009.11.001 PG 5 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600008 ER PT J AU Hammel, BA Haan, SW Clark, DS Edwards, MJ Langer, SH Marinak, MM Patel, MV Salmonson, JD Scott, HA AF Hammel, B. A. Haan, S. W. Clark, D. S. Edwards, M. J. Langer, S. H. Marinak, M. M. Patel, M. V. Salmonson, J. D. Scott, H. A. TI High-mode Rayleigh-Taylor growth in NIF ignition capsules SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Hydrodynamic simulation; Rayleigh-Taylor instabilities; Inertial confinement fusion; Implosions ID DENSE MATTER; PLASMAS; HOT AB An assessment of short wavelength hydrodynamic stability is an essential component in the optimization of NIF ignition target designs. Using highly-resolved massively-parallel 2D Hydra simulations [Marinak, M.M. et al., Physics of Plasmas (1998). 5(4): 11251, we routinely evaluate target designs up to mode numbers of 2000 (lambda similar to 2 mu m) [Hammel, B.A. et al., Journal of Physics: Conference Series, 2008. 112(2): p. 02200]. On the outer ablator surface, mode numbers up to 300 (lambda similar to 20 mu m) can have significant growth in CH capsule designs. At the internal fuel:ablator interface mode numbers up to similar to 2000 are important for both CH and Be designs. In addition, "isolated features" on the capsule, such as the "fill-tube" (similar to 5 mu m scale-length) and defects, can seed short wavelength growth at the ablation front and the fuel:ablator interface, leading to the injection of similar to 10's ng of ablator material into the central hot-spot. We are developing methods to measure high-mode mix on NIF implosion experiments. X-ray spectroscopic methods are appealing since mix into the hot-spot will result in x-ray emission from the high-Z dopant (Cu or Ge) in the ablator material (Be or CH). (C) 2010 Elsevier B.V. All rights reserved. C1 [Hammel, B. A.; Haan, S. W.; Clark, D. S.; Edwards, M. J.; Langer, S. H.; Marinak, M. M.; Patel, M. V.; Salmonson, J. D.; Scott, H. A.] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Hammel, BA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA USA. EM hammel1@llnl.gov OI Patel, Mehul/0000-0002-0486-010X NR 13 TC 78 Z9 78 U1 3 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 171 EP 178 DI 10.1016/j.hedp.2009.12.005 PG 8 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600009 ER PT J AU Huntington, CM Krauland, CM Kuranz, CC Glenzer, SH Drake, RP AF Huntington, C. M. Krauland, C. M. Kuranz, C. C. Glenzer, S. H. Drake, R. P. TI Imaging scattered x-ray radiation for measurement of local electron density in high-energy-density experiments SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE X-ray imaging; X-ray scattering; High energy density experiment; Electron density measurement; Thomson scattering ID NATIONAL-IGNITION-FACILITY; THOMSON SCATTERING; PLASMAS; RADIOGRAPHY; RESOLUTION; Z=1-92; SYSTEM; NOVA AB Imaging high-energy-density systems with scattered x-ray photons has several unique characteristics that differentiate it from the transmission radiography methods that have traditionally been used to diagnose these experiments. Because x-ray photons scatter primarily from the plasma electrons, the degree of scattering from any point in a target is roughly proportional to the electron density at that point. By constraining the directions of incident and scattered photons, the scattering event can be localized, resulting in a point-wise, internal map of the target electron density. Additionally, a scattering experiment is not restricted to the collinear source-target-detector geometry of transmission radiography. This flexibility allows for multiple detectors to image light from a single source, though potentially at different scattering angles or energy bands. Presented in this paper is the theoretical underpinning for scattered x-ray imaging, as well as a description of an upcoming proof-of-principle experiment to be conducted at the OMEGA Laser Facility. (C) 2010 Elsevier B.V. All rights reserved. C1 [Huntington, C. M.; Krauland, C. M.; Kuranz, C. C.; Drake, R. P.] Univ Michigan, Ann Arbor, MI 48103 USA. [Glenzer, S. H.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Huntington, CM (reprint author), Univ Michigan, 2455 Hayward Rd, Ann Arbor, MI 48103 USA. EM channing@umich.edu RI Drake, R Paul/I-9218-2012 OI Drake, R Paul/0000-0002-5450-9844 NR 39 TC 5 Z9 5 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 194 EP 199 DI 10.1016/j.hedp.2010.01.009 PG 6 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600013 ER PT J AU Kirkpatrick, RC AF Kirkpatrick, Ronald C. TI HEDP and new directions for fusion energy SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Magnetized; Target; Fusion; Inertial; Ignition; Energy AB Magnetic-confinement fusion energy and inertia-confinement fusion energy (IFE) represent two extreme approaches to the quest for the application of thermonuclear fusion to electrical energy generation. Blind pursuit of these extreme approaches has long delayed the achievement of their common goal. We point out the possibility of an intermediate approach that promises cheaper, and consequently more rapid development of fusion energy. For example, magneto-inertial fusion appears to be possible over a broad range of parameter space. It is further argued that imposition of artificial constraints impedes the discovery of physics solutions for the fusion energy problem. Published by Elsevier B.V. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Kirkpatrick, RC (reprint author), Los Alamos Natl Lab, MS T-089, Los Alamos, NM 87545 USA. EM rck@lanl.gov NR 8 TC 1 Z9 1 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 207 EP 209 DI 10.1016/j.hedp.2010.01.017 PG 3 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600015 ER PT J AU Kuranz, CC Doss, FW Drake, RP Grosskopf, M Robey, HF AF Kuranz, C. C. Doss, F. W. Drake, R. P. Grosskopf, Mi. Robey, H. F. TI Using wall shocks to measure preheat in laser-irradiated, high-energy-density, hydrodynamics experiments SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Laboratory astrophysics; Preheat; Hydrodynamics; Plasma physics; Laser ID RAYLEIGH-TAYLOR INSTABILITY; SIMULATION; SYSTEM; ISSUES AB Laser-irradiated, high-energy-density (HED) physics experiments commonly use experimental targets that are contained in a shock tube. X-rays generated when the laser irradiates the target surface are believed to be energetic enough to heat the tube wall material and generate a secondary shock. The speed of this secondary shock can be used to assess the amount of preheat in an experimental system. This paper describes an experiment that explores the hydrodynamic instabilities believed to occur in core-collapse supernova. The preheat in the system can affect the initial conditions of HED experiments causing unintended heating of material. (C) 2010 Elsevier B.V. All rights reserved. C1 [Kuranz, C. C.; Doss, F. W.; Drake, R. P.; Grosskopf, Mi.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ctr Radiat Shock Hydrodynam, Ann Arbor, MI 48109 USA. [Robey, H. F.] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Kuranz, CC (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, Ctr Radiat Shock Hydrodynam, Ann Arbor, MI 48109 USA. EM ckuranz@umich.edu RI Drake, R Paul/I-9218-2012 OI Drake, R Paul/0000-0002-5450-9844 NR 19 TC 4 Z9 4 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 215 EP 218 DI 10.1016/j.hedp.2010.01.002 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600017 ER PT J AU Lim, HK Yu, Y Glimm, J Sharp, DH AF Lim, Hyun Kyung Yu, Yan Glimm, James Sharp, David H. TI Nearly discontinuous chaotic mixing SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Turbulence; Mixing; Subgrid scale models; Richtmyer-Meshkov ID RAYLEIGH-TAYLOR; CONVERGENCE; MODEL; TRANSPORT; DYNAMICS AB A new scientific approach to subgrid scale modeling is presented for chaotic problems involving a high degree of mixing over rapid time scales. Richtmyer-Meshkov unstable flows are typical of such problems. Chemical reaction rates for turbulent mixtures are shown to converge with feasible grid resolution. The essential dependence of fluid mixing observables on transport phenomena is observed. (C) 2010 Elsevier B.V. All rights reserved. C1 [Lim, Hyun Kyung; Yu, Yan; Glimm, James] SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA. [Glimm, James] Brookhaven Natl Lab, Computat Sci Ctr, Upton, NY 11973 USA. [Sharp, David H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Lim, HK (reprint author), SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA. EM hyulim@ams.sunysb.edu NR 18 TC 6 Z9 6 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 223 EP 226 DI 10.1016/j.hedp.2010.01.005 PG 4 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600019 ER PT J AU Ping, Y Correa, AA Ogitsu, T Draeger, E Schwegler, E Ao, T Widmann, K Price, DF Lee, E Tam, H Springer, PT Hanson, D Koslow, I Prendergast, D Collins, G Ng, A AF Ping, Y. Correa, A. A. Ogitsu, T. Draeger, E. Schwegler, E. Ao, T. Widmann, K. Price, D. F. Lee, E. Tam, H. Springer, P. T. Hanson, D. Koslow, I. Prendergast, D. Collins, G. Ng, A. TI Warm dense matter created by isochoric laser heating SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Warm dense matter; Isochoric heating; Short pulse laser ID INDUCED ELECTRON-EMISSION; WORK FUNCTION; PICOSECOND PULSES; BRILLOUIN-ZONE; METAL-SURFACES; GOLD; PHOTOEMISSION; PSEUDOPOTENTIALS; MULTIPHOTON; CONDUCTION AB Warm Dense Matter (WDM) physics has been a growing field of high energy density physics, driven by the fundamental urge to understand the convergence between plasma and condensed matter physics, and the practical need to understand dynamic behavior of materials under extreme conditions. A platform for creating and probing WDM by isochoric heating of free-standing nano-foils has been developed recently to study the non-equilibrium processes. Results of optical measurements reveal the existence of a quasi-steady state in the time history, during which the interband component of the dielectric function shows both enhancement and a red shift. First-principles calculations of the dielectric function suggest that the enhanced red shift of the interband transition peak might be explained by a positive charge state of the gold foil due to ejection of electrons by the high intensity laser pulse. The impact on optical properties by the formation of an electronic sheath was examined by the Thomas-Fermi theory with local equilibrium approximation. (C) 2010 Elsevier B.V. All rights reserved. C1 [Ping, Y.; Correa, A. A.; Ogitsu, T.; Draeger, E.; Schwegler, E.; Widmann, K.; Price, D. F.; Springer, P. T.; Collins, G.; Ng, A.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Ao, T.; Lee, E.; Tam, H.; Hanson, D.; Koslow, I.; Ng, A.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V5Z 1M9, Canada. [Prendergast, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Ping, Y (reprint author), Lawrence Livermore Natl Lab, Livermore, CA USA. EM ping2@llnl.gov RI Schwegler, Eric/F-7294-2010; Schwegler, Eric/A-2436-2016 OI Schwegler, Eric/0000-0003-3635-7418 NR 66 TC 12 Z9 12 U1 1 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 EI 1878-0563 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 246 EP 257 DI 10.1016/j.hedp.2009.12.009 PG 12 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600023 ER PT J AU Symes, DR Hohenberger, M Lazarus, J Osterhoff, J Moore, AS Faustlin, RR Edens, AD Doyle, HW Carley, RE Marocchino, A Chittenden, JP Bernstein, AC Gumbrell, ET Dunne, M Smith, RA Ditmire, T AF Symes, D. R. Hohenberger, M. Lazarus, J. Osterhoff, J. Moore, A. S. Faeustlin, R. R. Edens, A. D. Doyle, H. W. Carley, R. E. Marocchino, A. Chittenden, J. P. Bernstein, A. C. Gumbrell, E. T. Dunne, Mike Smith, R. A. Ditmire, T. TI Investigations of laser-driven radiative blast waves in clustered gases SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Laser-cluster interactions; Laser-driven shocks and discontinuities; Hydrodynamic plasma instabilities; Laboratory astrophysics ID ENERGY DEPOSITION; ATOMIC CLUSTERS; INSTABILITIES; PERTURBATIONS; GROWTH; SHOCKS AB Radiative blast waves can be created by focusing intense laser pulses into highly absorbing clustered gases. By considering the plasma conditions these shocks can be categorized as optically thin radiative shocks, a regime of particular interest for laboratory astrophysics experiments. A periodic spatial modulation is introduced to the shock front in order to investigate instability and shock collisions. Hydrodynamic simulations are presented which are in qualitative agreement with the experimental results. A technique to perform a single shot measurement of the entire shock trajectory and the possibility to detect oscillations in the shock velocity is discussed. (C) 2009 Elsevier B.V. All rights reserved. C1 [Symes, D. R.; Dunne, Mike] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England. [Hohenberger, M.; Lazarus, J.; Doyle, H. W.; Carley, R. E.; Marocchino, A.; Chittenden, J. P.; Smith, R. A.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England. [Osterhoff, J.; Faeustlin, R. R.; Bernstein, A. C.; Ditmire, T.] Univ Texas Austin, Texas Ctr High Intens Laser Sci, Dept Phys, Austin, TX 78712 USA. [Moore, A. S.; Gumbrell, E. T.] AWE Plc, Div Plasma Phys, Reading RG7 4PR, Berks, England. [Edens, A. D.] Sandia Natl Labs, Albuquerque, NM 87059 USA. RP Symes, DR (reprint author), Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England. EM dan.symes@stfc.ac.uk RI Dunne, Mike/B-4318-2014; Marocchino, Alberto/E-3571-2016 OI Dunne, Mike/0000-0001-8740-3870; Marocchino, Alberto/0000-0002-5287-8355 NR 34 TC 17 Z9 17 U1 2 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 274 EP 279 DI 10.1016/j.hedp.2009.11.006 PG 6 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600027 ER PT J AU Zylstra, AB Barnard, JJ More, RM AF Zylstra, A. B. Barnard, J. J. More, R. M. TI 1-D Van der Waals foams heated by ion beam energy deposition SO HIGH ENERGY DENSITY PHYSICS LA English DT Article; Proceedings Paper CT 2nd International Conference on High Energy Density Physics CY MAY 19-22, 2009 CL Austin, TX DE Warm dense matter; Hydrodynamics ID TARGETS AB One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a Van der Waals equation of state (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse length, resulting in temperatures from approximately 1-4 eV. We study peak pressures and temperatures in the foams, expansion velocity, and the phase evolution. Five relevant time scales in the problem are identified. Additionally, we present a method for characterizing the level of inhomogeneity in a foam target as it is heated and the time it takes for a foam to homogenize. (C) 2009 Elsevier B.V. All rights reserved. C1 [Zylstra, A. B.; Barnard, J. J.; More, R. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Zylstra, A. B.] Pomona Coll, Dept Phys, Claremont, CA 91711 USA. [Barnard, J. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Zylstra, AB (reprint author), MIT, 77 Massachusetts Ave,NW17-256, Cambridge, MA 02139 USA. EM zylstra@mit.edu NR 12 TC 3 Z9 3 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD JUN PY 2010 VL 6 IS 2 SI SI BP 280 EP 288 DI 10.1016/j.hedp.2009.12.008 PG 9 WC Physics, Fluids & Plasmas SC Physics GA 660BX UT WOS:000282614600028 ER PT J AU Westfall, C AF Westfall, Catherine TI Surviving to Tell the Tale: Argonne's Intense Pulsed Neutron Source from an Ecosystem Perspective SO HISTORICAL STUDIES IN THE NATURAL SCIENCES LA English DT Article DE Argonne National Laboratory; Intense Pulsed Neutron Source; materials science; neutron scattering; relationality; ecosystem metaphor; US national laboratories ID ATOMIC-ENERGY-COMMISSION; NATIONAL LABORATORIES; BIG SCIENCE; SCATTERING AB At first glance the story of the Intense Pulsed Neutron Source (IPNS), an accelerator-driven neutron source for exploring the structure of materials through neutron scattering, seems to be one of puzzling ups and downs. For example, Argonne management, Department of Energy officials, and materials science reviewers continued to offer, then withdraw, votes of confidence even though the middling-sized IPNS produced high-profile research, including work that made the cover of Nature in 1987. In the midst of this period of shifting opinion and impressive research results, some Argonne materials scientists were unenthusiastic, members of the laboratory's energy physics group were key supporters, and materials scientists at another laboratory provided, almost fortuitously, a new lease on life. What forces shaped the puzzling life cycle of the IPNS? And what role-if any-did the moderate price tag and the development of scientific and technological ideas play in the course it took? To answer these questions this paper looks to an ecosystem metaphor for inspiration, exploring how opinions, ideas, and machinery emerged from the interrelated resource economies of Argonne, the DOE, and the materials science community by way of a tangled web of shifting group interactions. The paper will conclude with reflections about what the resulting focus on relationality explains about the IPNS story as well as the underlying dynamic that animates knowledge production at U.S. national laboratories. C1 [Westfall, Catherine] Argonne Natl Lab, Argonne, IL 60439 USA. [Westfall, Catherine] Michigan State Univ, Lyman Briggs Coll, E Lansing, MI 48864 USA. RP Westfall, C (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM westfa12@msu.edu NR 47 TC 9 Z9 9 U1 0 U2 0 PU UNIV CALIFORNIA PRESS PI BERKELEY PA C/O JOURNALS & DIGITAL PUBLISHING DIVISION, 2000 CENTER ST, STE 303, BERKELEY, CA 94704-1223 USA SN 1939-1811 J9 HIST STUD NAT SCI JI Hist. Stud. Nat. Sci. PD SUM PY 2010 VL 40 IS 3 BP 350 EP 398 DI 10.1525/hsns.2010.40.3.350 PG 49 WC History & Philosophy Of Science SC History & Philosophy of Science GA 634LU UT WOS:000280583900003 ER PT J AU Foster, T Olsen, L Dale, V Cohen, A AF Foster, Thomas Olsen, Lisa Dale, Virginia Cohen, Arthur TI Studying the Past for the Future: Managing Modern Biodiversity from Historic and Prehistoric Data SO HUMAN ORGANIZATION LA English DT Article DE applied historical ecology; forestry; Muscogee Creek; southeastern United States; military environmental management ID SOUTHEASTERN UNITED-STATES; EAST-CENTRAL ALABAMA; FORESTS; VEGETATION; INDIANS; ECOLOGY; CLIMATE AB Management of biodiversity and anthropogenic effects on the environment are some of the most difficult challenges facing humans today. In this paper, we describe how archaeological, historical, and ecological data can be combined to identify metrics of ecological change. Archaeological surveys, historic witness tree data, analysis of ancient pollen, and recent satellite imagery are combined to create indicators of change that are useable by modern environmental managers at Fort Benning Military Reservation in Georgia and Alabama in the United States. Archaeological data were collected at 30 meter intervals, historic vegetation data were collected from early nineteenth century survey maps, and ancient pollen and charcoal were collected from soil cores in lakes. We show how data sets collected with disparate goals from anthropology and ecology can be applied to make policy decisions about environmental management. C1 [Foster, Thomas] Univ W Georgia, Antonio J Waring Jr Archaeol Lab, Carrollton, GA 30118 USA. [Olsen, Lisa; Dale, Virginia] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Cohen, Arthur] Univ S Carolina, Dept Geol Sci, Columbia, SC 29208 USA. NR 45 TC 0 Z9 0 U1 1 U2 16 PU SOC APPLIED ANTHROPOLOGY PI OKLAHOMA CITY PA 3000 UNITED FOUNDERS BLVD, STE 148, OKLAHOMA CITY, OK 73112 USA SN 0018-7259 J9 HUM ORGAN JI Hum. Organ. PD SUM PY 2010 VL 69 IS 2 BP 149 EP 157 PG 9 WC Anthropology; Social Sciences, Interdisciplinary SC Anthropology; Social Sciences - Other Topics GA 606IK UT WOS:000278417200005 ER PT J AU Matsuta, K Mihara, M Zhou, DM Zheng, YN Nishimura, D Nagatomo, T Yuan, DQ Momota, S Izumikawa, T Zuo, Y Fan, P Zhu, SY Ohtsubo, T Fukuda, M Namiki, Y Nagashima, M Minamisono, T Kameda, D Sumikama, T Kitagawa, A Kanazawa, M Torikoshi, M Sato, S Matsumiya, R Komurasaki, J Ishikawa, D Hirano, H Takahashi, S Kubo, T Yamada, R Shimbara, Y Nojiri, Y Suzuki, T Zhang, XZ Alonso, JR Krebs, GF Symons, TJM AF Matsuta, K. Mihara, M. Zhou, D. M. Zheng, Y. N. Nishimura, D. Nagatomo, T. Yuan, D. Q. Momota, S. Izumikawa, T. Zuo, Y. Fan, P. Zhu, S. Y. Ohtsubo, T. Fukuda, M. Namiki, Y. Nagashima, M. Minamisono, T. Kameda, D. Sumikama, T. Kitagawa, A. Kanazawa, M. Torikoshi, M. Sato, S. Matsumiya, R. Komurasaki, J. Ishikawa, D. Hirano, H. Takahashi, S. Kubo, T. Yamada, R. Shimbara, Y. Nojiri, Y. Suzuki, T. Zhang, X. Z. Alonso, J. R. Krebs, G. F. Symons, T. J. M. TI Polarization creation in proton-rich P-28 via charge exchange reactions and measurement of its electric quadrupole moment SO HYPERFINE INTERACTIONS LA English DT Proceedings Paper CT 3rd Joint International Conference on Hyperfine Interactions (HFI) / International Symposium on Nuclear Quadrupole Interactions (NQI) CY SEP 12-17, 2010 CL CERN, Geneva, SWITZERLAND HO CERN DE beta-NQR; Polarization; Electric quadrupole moment AB The degrees of polarization of proton rich nucleus P-28 produced in charge exchange reactions Si-28 + Be-9 -> P-28 + X, and Si-28 + H-1 -> P-28 + X have been observed at 100 A MeV. Utilizing thus obtained polarized nuclei, the magnetic moment of P-28 was remeasured, and vertical bar mu(P-28)vertical bar = 0.3115 (34) mu(N) was obtained. beta-nuclear quadrupole resonance (beta-NQR) of P-28 implanted in alpha-Al2O3 have been observed for the first time, in order to measure the electric quadrupole moment of this nucleus. C1 [Matsuta, K.; Mihara, M.; Nishimura, D.; Fukuda, M.; Matsumiya, R.; Komurasaki, J.; Ishikawa, D.] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan. [Zhou, D. M.; Zheng, Y. N.; Yuan, D. Q.; Zuo, Y.; Fan, P.; Zhu, S. Y.; Zhang, X. Z.] CIAE, Beijing 102413, Peoples R China. [Nagatomo, T.] Int Christian Univ, Tokyo 1818585, Japan. [Momota, S.; Nojiri, Y.] Kochi Univ Technol, Kochi 7828502, Japan. [Izumikawa, T.] Niigata Univ, RI Ctr, Niigata 9518510, Japan. [Ohtsubo, T.; Namiki, Y.; Nagashima, M.; Hirano, H.; Takahashi, S.; Kubo, T.; Yamada, R.; Shimbara, Y.] Niigata Univ, Niigata 9512181, Japan. [Minamisono, T.] Fukui Univ Technol, Fukui 9108505, Japan. [Kameda, D.] RIKEN, Wako, Saitama 3510198, Japan. [Sumikama, T.] Tokyo Univ Sci, Chiba 2780022, Japan. [Kitagawa, A.; Kanazawa, M.; Torikoshi, M.; Sato, S.] NIRS, Chiba 2638555, Japan. [Suzuki, T.] Nihon Univ, Tokyo 1568550, Japan. [Alonso, J. R.; Krebs, G. F.; Symons, T. J. M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Matsuta, K (reprint author), Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan. EM matsuta@vg.phys.sci.osaka-u.ac.jp NR 2 TC 2 Z9 2 U1 0 U2 1 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0304-3843 J9 HYPERFINE INTERACT JI Hyperfine Interact. PD JUN PY 2010 VL 198 IS 1-3 BP 147 EP 151 DI 10.1007/s10751-010-0253-9 PG 5 WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter; Physics, Nuclear SC Physics GA 068JJ UT WOS:000313362700022 ER PT J AU Ong, L Asphaug, EI Korycansky, D Coker, RF AF Ong, Lissa Asphaug, Erik I. Korycansky, Donald Coker, Robert F. TI Volatile retention from cometary impacts on the Moon SO ICARUS LA English DT Article DE Impact processes; Moon; Comets; Asteroids; Ices ID POLAR HYDROGEN DEPOSITS; JUPITER-FAMILY COMETS; NUMERICAL SIMULATIONS; SPATIAL-DISTRIBUTION; ECLIPTIC COMETS; LUNAR ICE; ASTEROIDS; WATER; DISTRIBUTIONS; HYDROCODE AB Impacts of comets and asteroids play an important role in volatile delivery on the Moon. We use a novel method for tracking vapor masses that reach escape velocity in hydrocode simulations of cometary impacts to explore the effects of volatile retention. We model impacts on the Moon to find the mass of vapor plume gravitationally trapped on the Moon as a function of impact velocity. We apply this result to the impactor velocity distribution and find that the total impactor mass retained on the Moon is approximately 6.5% of the impactor mass flux. Making reasonable assumptions about water content of comets and the comet size-frequency distribution, we derive a water flux for the Moon. After accounting for migration and stability of water ice at the poles, we estimate a total 1.3 x 10(8)-4.3 x 10(9) metric tons of water is delivered to the Moon and remains stable at the poles over 1 Ga. A factor of 30 uncertainty in the estimated cometary impact flux is primarily responsible for this large range of values. The calculated mass of water is sufficient to account for the neutron fluxes poleward of 75 degrees observed by Lunar Prospector. A similar analysis for water delivery to the Moon via asteroid impacts shows that asteroids provide six times more water mass via impacts than comets. (C) 2010 Elsevier Inc. All rights reserved. C1 [Ong, Lissa] Univ Arizona, Dept Planetary Sci, Lunar & Planetary Lab, Tucson, AZ 85721 USA. [Ong, Lissa; Asphaug, Erik I.] Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA. [Korycansky, Donald] Univ Calif Santa Cruz, Inst Geophys & Planetary Phys, Santa Cruz, CA 95064 USA. [Coker, Robert F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Ong, L (reprint author), Univ Arizona, Dept Planetary Sci, Lunar & Planetary Lab, Tucson, AZ 85721 USA. EM long@lpl.arizona.edu FU National Science Foundation; Department of Energy FX The authors thank F. Nimmo and H.J. Melosh for useful comments and discussion and two anonymous reviewers for useful comments that improved this manuscript. This material is based upon work supported under a National Science Foundation Graduate Research Fellowship and the Department of Energy. E.I.A. thanks the NASA PG&G "Small Bodies and Planetary Collisions" program. NR 71 TC 29 Z9 29 U1 1 U2 8 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0019-1035 J9 ICARUS JI Icarus PD JUN PY 2010 VL 207 IS 2 BP 578 EP 589 DI 10.1016/j.icarus.2009.12.012 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 597VS UT WOS:000277790900009 ER PT J AU Xie, C Xu, F Ghani, N Chaniotakis, E Guok, C Lehman, T AF Xie, C. Xu, F. Ghani, N. Chaniotakis, E. Guok, C. Lehman, T. TI Load-Balancing for Advance Reservation Connection Rerouting SO IEEE COMMUNICATIONS LETTERS LA English DT Article DE Advance reservation; rerouting; connection management; scheduling AB This paper studies rerouting in advance reservation networks. Namely, a novel load-balancing scheme is proposed to reroute admitted inactive reservations in order to lower blocking probability and improve future bandwidth utilization. Detailed algorithms are outlined in the form of pseudo-code, followed by analyses of related time and space complexities. Simulation results are then presented to compare the performance of the proposed solution versus existing advance reservation schemes. C1 [Xie, C.; Xu, F.; Ghani, N.] Univ New Mexico, Albuquerque, NM 87131 USA. [Chaniotakis, E.; Guok, C.] Lawrence Berkeley Lab, Berkeley, CA USA. [Lehman, T.] Univ So Calif, Los Angeles, CA 90089 USA. RP Xie, C (reprint author), Univ New Mexico, Albuquerque, NM 87131 USA. EM xcy@unm.edu; fengxu@unm.edu; nghani@ece.unm.edu; haniotak@es.net; chin@es.net; tlehman@east.isi.edu FU United States Department of Energy Office of Science [ER25828] FX This research has been supported in part by the United States Department of Energy Office of Science under award #ER25828. NR 9 TC 5 Z9 5 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1089-7798 J9 IEEE COMMUN LETT JI IEEE Commun. Lett. PD JUN PY 2010 VL 14 IS 6 BP 578 EP 580 DI 10.1109/LCOMM.2010.06.091998 PG 3 WC Telecommunications SC Telecommunications GA 607WY UT WOS:000278539200028 ER PT J AU Noh, JH Ryu, SY Jo, SJ Kim, CS Sohn, SW Rack, PD Kim, DJ Baik, HK AF Noh, Joo Hyon Ryu, Seung Yoon Jo, Sung Jin Kim, Chang Su Sohn, Sung-Woo Rack, Philip D. Kim, Dong-Joo Baik, Hong Koo TI Indium Oxide Thin-Film Transistors Fabricated by RF Sputtering at Room Temperature SO IEEE ELECTRON DEVICE LETTERS LA English DT Article DE Indium oxide; thin films; thin-film transistors (TFTs) ID ELECTRICAL-PROPERTIES; SEMICONDUCTOR; PERFORMANCE AB Thin-film transistors (TFTs) were fabricated using an indium oxide (In(2)O(3)) thin film as the n-channel active layer by RF sputtering at room temperature. The TFTs showed a thickness-dependent performance in the range of 48-8 nm, which is ascribed to the total carrier number in the active layer. Optimum device performance at 8-nm-thick In(2)O(3) TFTs had a field-effect mobility of 15.3 cm(2) . V(-1) . s(-1), a threshold voltage of 3.1 V, an ON-OFF current ratio of 2.2 x 10(8), a subthreshold gate voltage swing of 0.25 V . decade(-1), and, most importantly, a normally OFF characteristic. These results suggest that sputter-deposited In(2)O(3) is a promising candidate for high-performance TFTs for transparent and flexible electronics. C1 [Noh, Joo Hyon; Rack, Philip D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Noh, Joo Hyon; Ryu, Seung Yoon; Jo, Sung Jin; Kim, Chang Su; Sohn, Sung-Woo; Baik, Hong Koo] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea. [Rack, Philip D.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Kim, Dong-Joo] Auburn Univ, Auburn, AL 36849 USA. RP Noh, JH (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. EM thinfilm@yonsei.ac.kr RI KIM, DONG-JOO/C-2277-2008; OI Rack, Philip/0000-0002-9964-3254 FU National Science Foundation [0729250] FX Manuscript received February 9, 2010. Date of publication April 19, 2010; date of current version May 26, 2010. The review of this letter was arranged by Editor A. Nathan. P. D. Rack acknowledges support from the National Science Foundation CBET Award 0729250. NR 17 TC 30 Z9 31 U1 6 U2 30 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0741-3106 J9 IEEE ELECTR DEVICE L JI IEEE Electron Device Lett. PD JUN PY 2010 VL 31 IS 6 BP 567 EP 569 DI 10.1109/LED.2010.2046133 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA 678RL UT WOS:000284097800007 ER PT J AU Kwon, DS Yang, TH Cho, YJ AF Kwon, Dong-Soo Yang, Tae-Heon Cho, Young-Jun TI Mechatronics Technology in Mobile Devices SO IEEE INDUSTRIAL ELECTRONICS MAGAZINE LA English DT Article ID TACTILE DISPLAY C1 [Kwon, Dong-Soo] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Yang, Tae-Heon; Cho, Young-Jun] Korea Adv Inst Sci & Technol, Human Robot Interact Res Ctr, Taejon, South Korea. RP Kwon, DS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM kwonds@kaist.ac.kr RI Kwon, Dong-Soo/C-1540-2011 NR 22 TC 5 Z9 5 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1932-4529 EI 1941-0115 J9 IEEE IND ELECTRON M JI IEEE Ind. Electron. Mag. PD JUN PY 2010 VL 4 IS 2 BP 36 EP 41 DI 10.1109/MIE.2010.936763 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA 650DM UT WOS:000281829200009 ER PT J AU Eltoweissy, M Du, DHC Gerla, M Giordano, S Gouda, M Schulzrinne, H Youssef, M Towsley, D AF Eltoweissy, Mohamed Du, David H. C. Gerla, Mario Giordano, Silvia Gouda, Mohamed Schulzrinne, Henning Youssef, Moustafa Towsley, Don TI Mission Critical Networking SO IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS LA English DT Editorial Material C1 [Eltoweissy, Mohamed] Pacific NW Natl Lab, Richland, WA 99352 USA. [Du, David H. C.] Univ Minnesota, Dept Comp Sci & Engn, Minneapolis, MN USA. [Gerla, Mario] Univ Calif Los Angeles, Los Angeles, CA USA. [Gouda, Mohamed] Univ Texas Austin, Austin, TX 78712 USA. [Gouda, Mohamed] Natl Sci Fdn, Arlington, VA 22230 USA. [Schulzrinne, Henning] Columbia Univ, Dept Comp Sci, New York, NY 10027 USA. [Schulzrinne, Henning] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA. [Youssef, Moustafa] Nile Univ, Cairo, Egypt. [Youssef, Moustafa] Univ Alexandria, Alexandria, Egypt. RP Eltoweissy, M (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. RI Youssef, Moustafa/H-5518-2011 OI Youssef, Moustafa/0000-0002-2063-4364 NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0733-8716 J9 IEEE J SEL AREA COMM JI IEEE J. Sel. Areas Commun. PD JUN PY 2010 VL 28 IS 5 BP 625 EP 629 DI 10.1109/JSAC.2010.100601 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA 669VK UT WOS:000283378100001 ER PT J AU Caspi, S Ambrosio, G Anerella, M Barzi, E Bossert, R Cheng, D Dietderich, D Felice, H Ferracin, P Ghosh, A Hafalia, R Hannaford, R Kashikhin, VV Pasholk, D Sabbi, GL Schmalzle, J Wanderer, P Zlobin, A AF Caspi, S. Ambrosio, G. Anerella, M. Barzi, E. Bossert, R. Cheng, D. Dietderich, D. Felice, H. Ferracin, P. Ghosh, A. Hafalia, R. Hannaford, R. Kashikhin, V. V. Pasholk, D. Sabbi, G. L. Schmalzle, J. Wanderer, P. Zlobin, A. TI Design of a 120 mm Bore 15 T Quadrupole for the LHC Upgrade Phase II SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE HQ; LARP; Nb(3)Sn; superconducting quadrupole magnet ID MAGNET; LARP AB Future upgrades to machines like the Large Hadron Collider (LHC) at CERN will push accelerator magnets beyond 10 T forcing the replacement of NbTi superconductors with advanced superconductors such as Nb(3)Sn. In support of the LHC Phase-II upgrade, the US LHC Accelerator Research Program (LARP) is developing a large bore (120 mm) Nb(3)Sn Interaction Region (IR) quadrupole (HQ) capable of reaching 15 T at its conductor limit and gradients of 199 T/m at 4.4 K and 219 T/m at 1.9 K. The 1 m long, two-layer magnet, addresses coil alignment and accelerator quality features while exploring the magnet performance limits in terms of gradient, stress and structure. This paper summarizes and reports on the design, mechanical structure, coil windings, reaction and impregnation processes. C1 [Caspi, S.; Cheng, D.; Dietderich, D.; Felice, H.; Ferracin, P.; Hafalia, R.; Hannaford, R.; Sabbi, G. L.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Ambrosio, G.; Barzi, E.; Bossert, R.; Kashikhin, V. V.; Pasholk, D.; Zlobin, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Anerella, M.; Ghosh, A.; Wanderer, P.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Caspi, S (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM s_caspi@lbl.gov NR 14 TC 22 Z9 22 U1 1 U2 14 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 144 EP 147 DI 10.1109/TASC.2010.2040147 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900006 ER PT J AU Xu, Q Sasaki, K Nakamoto, T Terashima, A Tsuchiya, K Yamamoto, A Kikuchi, A Takeuchi, T Sabbi, G Caspi, S Ferracin, P Felice, H Hafalia, R Zlobin, A Barzi, E Yamada, R AF Xu, Qingjin Sasaki, Kenichi Nakamoto, Tatsushi Terashima, Akio Tsuchiya, Kiyosumi Yamamoto, Akira Kikuchi, Akihiro Takeuchi, Takao Sabbi, GianLuca Caspi, Shlomo Ferracin, Paolo Felice, Helene Hafalia, Ray Zlobin, Alexander Barzi, Emanuela Yamada, Ryuji TI Design of a High Field Nb3Al Common Coil Magnet SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Common coil; high field magnets; Nb3Al; superconducting magnets AB A high field Nb3Al common coil magnet is under development as an R& D of "Advanced Superconducting Magnets for the LHC Luminosity Upgrade", in the framework of the CERN-KEK cooperation program. The goal of this research is to demonstrate the feasibility of high field magnet wound with Nb3Al cable. The common coil approach and the shell-based structure were adopted in the design of this magnet. Besides three Nb3Al coils, two Nb3Sn coils were included to increase the peak field of the whole magnet. The two types of coils were designed with different straight lengths to reduce the peak field of the Nb3Al coils. The peak fields of the Nb3Al and Nb3Sn coils are 13.1 T and 11.8 T respectively. An aluminum shell together with four aluminum rods applies stress to the coils to overcome the Lorenz force during excitation. Two different support structures for the superconducting coils were introduced in this paper. The development status is also presented. C1 [Xu, Qingjin; Sasaki, Kenichi; Nakamoto, Tatsushi; Terashima, Akio; Tsuchiya, Kiyosumi; Yamamoto, Akira] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan. [Kikuchi, Akihiro; Takeuchi, Takao] Natl Inst Mat Sci, Tsukuba, Ibaraki, Japan. [Sabbi, GianLuca; Caspi, Shlomo; Ferracin, Paolo; Felice, Helene; Hafalia, Ray] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Zlobin, Alexander; Barzi, Emanuela; Yamada, Ryuji] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Xu, Q (reprint author), High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan. EM qingjin.xu@kek.jp; ken-ichi.sasaki@kek.jp; nakamoto@post.kek.jp; akio.terashima@kek.jp; kiyosumi.tsuchiya@kek.jp; akira.yamamoto@kek.jp; KIKUCHI.Akihiro@nims.go.jp; TAKEUCHI.Takao@nims.go.jp; GLSabbi@lbl.gov; s_caspi@lbl.gov; pferracin@lbl.gov; hfelice@lbl.gov; RRHafalia@lbl.gov; zlobin@fnal.gov; barzi@fnal.gov; yamada@fnal.gov RI TAKEUCHI, Takao/H-2753-2011 NR 10 TC 9 Z9 9 U1 2 U2 12 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 176 EP 179 DI 10.1109/TASC.2009.2038795 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900014 ER PT J AU Kashikhin, V AF Kashikhin, Vladimir TI A Novel Design of Iron Dominated Superconducting Multipole Magnets With Circular Coils SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Accelerator magnets; coils; iron; magnetic fields; superconducting magnets ID TESLA TEST FACILITY; QUADRUPOLE AB Linear accelerators based on superconducting magnet technology use a large number of relatively weak superconducting quadrupoles. In this case an iron dominated quadrupole is the most cost effective solution. The field quality in this magnet is defined by iron poles; the magnet air gap is minimal as are coil ampere-turns. Nevertheless, it has long racetrack type coils, which must be rigid and fixed by a mechanical structure to provide the needed mechanical stability. The novel concept of using circular superconducting coils in such a quadrupole type is described, with a discussion of quadrupole parameters, and results of 3D magnetic designs. Variants of short and long sectional quadrupoles and multipoles are presented. C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Kashikhin, V (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM kash@fnal.gov NR 11 TC 1 Z9 1 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 196 EP 199 DI 10.1109/TASC.2009.2039706 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900019 ER PT J AU Nakamoto, T Sasaki, K Ajima, Y Araoka, O Fujii, Y Hastings, N Higashi, N Iida, M Ishii, T Kimura, N Kobayashi, T Makida, Y Nakadaira, T Ogitsu, T Ohhata, H Okamura, T Sakashita, K Sugawara, S Suzuki, S Tanaka, K Tomaru, T Terashima, A Yamamoto, A Ichikawa, A Kakuno, H Anerella, M Escallier, J Ganetis, G Gupta, R Jain, A Muratore, J Parker, B Wanderer, P Boussuge, T Charrier, JP Arakawa, M Ichihara, T Minato, T Okada, Y Itou, A Kumaki, T Nagami, M Takahashi, T AF Nakamoto, T. Sasaki, K. Ajima, Y. Araoka, O. Fujii, Y. Hastings, N. Higashi, N. Iida, M. Ishii, T. Kimura, N. Kobayashi, T. Makida, Y. Nakadaira, T. Ogitsu, T. Ohhata, H. Okamura, T. Sakashita, K. Sugawara, S. Suzuki, S. Tanaka, K. Tomaru, T. Terashima, A. Yamamoto, A. Ichikawa, A. Kakuno, H. Anerella, M. Escallier, J. Ganetis, G. Gupta, R. Jain, A. Muratore, J. Parker, B. Wanderer, P. Boussuge, T. Charrier, J. -P. Arakawa, M. Ichihara, T. Minato, T. Okada, Y. Itou, A. Kumaki, T. Nagami, M. Takahashi, T. TI Construction of Superconducting Magnet System for the J-PARC Neutrino Beam Line SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Beam line; neutrino; proton; superconducting magnet ID PROTOTYPE; DESIGN AB Following success of a prototype R&D, construction of a superconducting magnet system for J-PARC neutrino beam line has been carried out since 2005. A new conceptual beam line with the superconducting combined function magnets demonstrated the successful beam transport to the neutrino production target. C1 [Nakamoto, T.; Sasaki, K.; Ajima, Y.; Araoka, O.; Fujii, Y.; Hastings, N.; Higashi, N.; Iida, M.; Ishii, T.; Kimura, N.; Kobayashi, T.; Makida, Y.; Nakadaira, T.; Ogitsu, T.; Ohhata, H.; Okamura, T.; Sakashita, K.; Sugawara, S.; Suzuki, S.; Tanaka, K.; Tomaru, T.; Terashima, A.; Yamamoto, A.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan. [Ichikawa, A.] Kyoto Univ, Div Phys & Astron, Kyoto 6068502, Japan. [Kakuno, H.] Univ Tokyo, Bunkyo Ku, Tokyo 1130033, Japan. [Anerella, M.; Escallier, J.; Ganetis, G.; Gupta, R.; Jain, A.; Muratore, J.; Parker, B.; Wanderer, P.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Boussuge, T.; Charrier, J. -P.] CEA Saclay, F-91191 Gif Sur Yvette, France. [Arakawa, M.; Ichihara, T.; Minato, T.; Okada, Y.] Mitsubishi Elect, Kobe, Hyogo 6528555, Japan. [Itou, A.; Kumaki, T.; Nagami, M.; Takahashi, T.] Taiyo Nippon Sanso, Kawasaki Ku, Kanagawa 2100861, Japan. RP Nakamoto, T (reprint author), High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan. EM tat-sushi.nakamoto@kek.jp; ichikawa@scphys.kyoto-u.ac.jp; kakuno@phys.s.u-tokyo.ac.jp; wanderer@bnl.gov; jean-paul.charrier@cea.fr; Ichihara.Tadashi@dh.Mitsubishi-Electric.co.jp; At-sushi.Itou@tn-sanso.co.jp NR 24 TC 9 Z9 9 U1 2 U2 10 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 208 EP 213 DI 10.1109/TASC.2009.2038800 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900022 ER PT J AU Chouhan, S DeKamp, J Zeller, A Brindza, P Lassiter, S Fowler, M Sun, E AF Chouhan, Shailendra DeKamp, Jon Zeller, Al Brindza, Paul Lassiter, Steve Fowler, Mike Sun, Eric TI The Superconducting Horizontal Bend Magnet for the Jefferson Lab's 11 GeV/c Super High Momentum Spectrometer SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Cryostat; dipole magnet; superferric; warm iron AB A collaboration between NSCL and Jlab has developed the reference design and coil winding for Jlab's Super High Momentum Spectrometer (SHMS) horizontal bend magnet. A warm iron "C" type superferric dipole magnet will bend the 12 GeV/c particles horizontally by 3 degrees to allow the SHMS to reach angles as low as 5.5 degrees. This requires an integral field strength of up to 2.1 T.m. The major challenges are the tight geometry, high and unbalanced forces and a required low fringe field in primary beam path. A coil design based on flattened SSC Rutherford cable that provides a large current margin and commercially available fiberglass prepreg epoxy tape has been developed. A complete test coil has been wound and will be cold tested. This paper present the modified magnet design includes coil forces, coil restraint system and fringe field. In addition, coil properties, quench calculations and the full mechanical details are also presented. C1 [Chouhan, Shailendra; DeKamp, Jon; Zeller, Al] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. [Brindza, Paul; Lassiter, Steve; Fowler, Mike; Sun, Eric] Thomas Jefferson Natl Accelerator Lab, Newport News, VA 23606 USA. RP Chouhan, S (reprint author), Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. EM chouhan@nscl.msu.edu; DeKamp@nscl.msu.edu; zeller@nscl.msu.edu; brindza@jlab.org; lassiter@jlab.org; fowler@jlab.org; qsun@jlab.org NR 3 TC 1 Z9 1 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 226 EP 229 DI 10.1109/TASC.2009.2038715 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900026 ER PT J AU Bordini, B Bajko, M Caspi, S Dietderich, D Felice, H Ferracin, P Rossi, L Sabbi, GL Takala, E AF Bordini, B. Bajko, M. Caspi, S. Dietderich, D. Felice, H. Ferracin, P. Rossi, L. Sabbi, G. L. Takala, E. TI Magneto-Thermal Stability in LARP Nb3Sn TQS Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Instability; magnets; Nb3Sn; self field ID RESEARCH-AND-DEVELOPMENT; INSTABILITIES; QUADRUPOLE; STRANDS; CABLES; FIELD AB In the framework of the US LHC Accelerator Program (LARP), three US laboratories BNL, FNAL and LBNL are developing Nb3Sn quadrupole magnets for the Large Hadron Collider (LHC) luminosity upgrade. At present CERN is supporting this activity by testing some of the LARP 1 m long 90 mm aperture magnets. Recently two magnets using a shell based key and bladder technology (TQS) have been tested at CERN. These magnets (TQS02c, TQS03a) share the same mechanical structure and use a 27 strand Rutherford cable based on the 0.7 mm RRP strand. The main difference between the two magnets is the strand sub-element layout (54/61 in TQS02c versus 108/127 in TQS03a) and the strand critical current. The TQS03a wire has a lower (18%) critical current, a larger amount of copper stabilizer, and a larger number of superconducting sub-elements with respect to the TQS02c strand. The tests show that TQS02c was stable between 4.3 K and 2.7 K while it was limited by the self-field instability at lower temperatures. TQS03a was not limited by magneto-thermal instabilities and reached 93% of the short sample limit both at 4.3 K and 1.9 K. In this paper the results are summarized and compared with the stability measurements performed at CERN on individual strands. C1 [Bordini, B.; Bajko, M.; Rossi, L.; Takala, E.] CERN, Dept Technol, CH-1211 Geneva 23, Switzerland. [Caspi, S.; Dietderich, D.; Felice, H.; Ferracin, P.; Sabbi, G. L.] LBNL, Berkeley, CA 94720 USA. RP Bordini, B (reprint author), CERN, Dept Technol, CH-1211 Geneva 23, Switzerland. EM bernardo.bordini@cern.ch NR 18 TC 7 Z9 7 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 274 EP 278 DI 10.1109/TASC.2010.2040600 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900038 ER PT J AU Ferracin, P Ambrosio, G Anerella, M Bingham, B Bossert, R Caspi, S Cheng, DW Chlachidze, G Felice, H Hafalia, AR Hannaford, CR Mumper, W Nobrega, F Prestemon, S Sabbi, GL Schmalzle, J Sylvester, C Tartaglia, M Wanderer, P Zlobin, AV AF Ferracin, P. Ambrosio, G. Anerella, M. Bingham, B. Bossert, R. Caspi, S. Cheng, D. W. Chlachidze, G. Felice, H. Hafalia, A. R. Hannaford, C. R. Mumper, W. Nobrega, F. Prestemon, S. Sabbi, G. L. Schmalzle, J. Sylvester, C. Tartaglia, M. Wanderer, P. Zlobin, A. V. TI Assembly and Loading of LQS01, a Shell-Based 3.7 m Long Nb3Sn Quadrupole Magnet for LARP SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE LARP; Nb3Sn; quadrupole magnet AB The LHC Accelerator Research Program (LARP) has been engaged in the fabrication of the 3.7 m long quadrupole magnet LQS01 in order to demonstrate that Nb3Sn magnets are a viable option for future LHC Luminosity upgrades. The LQS01 design, a scale-up of the 1 m long Technology Quadrupole TQS, includes four 3.4 m long cos(theta) coils contained in a support structure based on four 1 m long aluminum shells pre-tensioned with water-pressurized bladders (shell-type structure). In order to verify assembly procedures and loading operations, the structure was pre-stressed around solid aluminum "dummy coils" and cooled-down to 77 K. Mechanical behavior and stress variations were monitored with strain gauges mounted on the structure and on the dummy coils. The dummy coils were then replaced with Nb3Sn coils in a second assembly and loading procedure, in preparation for the cool-down and test. This paper reports on the cool-down test with dummy coils and on the assembly and loading of LQS01, with a comparison between 3D finite element model predictions and strain gauge data. C1 [Ferracin, P.; Bingham, B.; Caspi, S.; Cheng, D. W.; Felice, H.; Hafalia, A. R.; Hannaford, C. R.; Prestemon, S.; Sabbi, G. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Ambrosio, G.; Bossert, R.; Chlachidze, G.; Mumper, W.; Nobrega, F.; Sylvester, C.; Tartaglia, M.; Zlobin, A. V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Anerella, M.; Schmalzle, J.; Wanderer, P.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Ferracin, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM pferracin@lbl.gov NR 13 TC 5 Z9 5 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 279 EP 282 DI 10.1109/TASC.2010.2042045 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900039 ER PT J AU Ambrosio, G Andreev, N Anerella, M Barzi, E Bingham, B Bocian, D Bordini, B Bossert, R Bottura, L Caspi, S Chlachidize, G De Rapper, WM Dietderich, D Escallier, J Felice, H Ferracin, P Ghosh, A Godeke, A Hafalia, R Hannaford, R Jochen, G Kashikhin, VV Kovach, P Lamm, M McInturff, A Muratore, J Nobrega, F Novitsky, I Orris, D Peggs, S Prebys, E Prestemon, S Sabbi, GL Schmalzle, J Sylvester, C Tartaglia, M Turrioni, D Velev, G Wanderer, P Whitson, G Willering, G Zlobin, AV AF Ambrosio, G. Andreev, N. Anerella, M. Barzi, E. Bingham, B. Bocian, D. Bordini, B. Bossert, R. Bottura, L. Caspi, S. Chlachidize, G. De Rapper, W. M. Dietderich, D. Escallier, J. Felice, H. Ferracin, P. Ghosh, A. Godeke, A. Hafalia, R. Hannaford, R. Jochen, G. Kashikhin, V. V. Kovach, P. Lamm, M. McInturff, A. Muratore, J. Nobrega, F. Novitsky, I. Orris, D. Peggs, S. Prebys, E. Prestemon, S. Sabbi, G. L. Schmalzle, J. Sylvester, C. Tartaglia, M. Turrioni, D. Velev, G. Wanderer, P. Whitson, G. Willering, G. Zlobin, A. V. TI Final Development and Test Preparation of the First 3.7 m Long Nb3Sn Quadrupole by LARP SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE LARP; long magnet; Nb3Sn; superconducting magnet AB The test of the first LARP(LHC Accelerator Research Program) Long Quadrupole is a significant milestone toward the development of Nb(3)Sn quadrupoles for LHC (Large Hadron Collider) Luminosity Upgrades. These 3.7-m long magnets, scaled from the 1-m long Technological Quadrupoles, are used to develop our capabilities to fabricate and assemble Nb(3)Sn coils and structures with lengths comparable to accelerator magnet dimensions. The long quadruples have a target gradient of 200 T/m in a 90-mm aperture. Pre-stress and support are provided by an Al-shell-based structure pre-loaded using bladders and keys. The coils were fabricated at BNL and FNAL, the shell-based structure was designed and assembled at LBNL, the test is performed at FNAL. In this paper we present the final steps of the development of the first model (LQS01), several upgrades to the test facility, the test results of witness cables, and the short sample limit. C1 [Ambrosio, G.; Andreev, N.; Barzi, E.; Bocian, D.; Bossert, R.; Chlachidize, G.; Kashikhin, V. V.; Lamm, M.; Nobrega, F.; Novitsky, I.; Orris, D.; Prebys, E.; Sylvester, C.; Tartaglia, M.; Turrioni, D.; Velev, G.; Whitson, G.; Zlobin, A. V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Anerella, M.; Escallier, J.; Ghosh, A.; Jochen, G.; Kovach, P.; Muratore, J.; Peggs, S.; Schmalzle, J.; Wanderer, P.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Bingham, B.; Caspi, S.; Dietderich, D.; Felice, H.; Ferracin, P.; Godeke, A.; Hafalia, R.; Hannaford, R.; McInturff, A.; Prestemon, S.; Sabbi, G. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Bordini, B.; Bottura, L.; De Rapper, W. M.; Willering, G.] CERN, CH-1211 Geneva 23, Switzerland. RP Ambrosio, G (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM giorgioa@fnal.gov NR 17 TC 11 Z9 11 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 283 EP 287 DI 10.1109/TASC.2010.2040471 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900040 ER PT J AU Andreev, N Barzi, E Bossert, R Chlachidze, G Kashikhin, VS Kashikhin, VV Lamm, MJ Nobrega, F Novitski, I Tartaglia, M Turrioni, D Yamada, R Zlobin, AV AF Andreev, N. Barzi, E. Bossert, R. Chlachidze, G. Kashikhin, V. S. Kashikhin, V. V. Lamm, M. J. Nobrega, F. Novitski, I. Tartaglia, M. Turrioni, D. Yamada, R. Zlobin, A. V. TI Magnetic Mirror Structure for Testing Shell-Type Quadrupole Coils SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Magnet test; magnetic mirror; quadrupole coil ID NB3SN; PERFORMANCE; CABLES; FIELD; MODEL; LARP AB This paper presents magnetic and mechanical designs of the quadrupole mirror structure to test single shell-type quadrupole coils. Three quadrupole coils made of different Nb(3)Sn strands, cable insulation and pole materials were tested using this structure at 4.5 and 1.9 K. The coils were instrumented with voltage taps, spot heaters, temperature sensors and strain gauges to study their mechanical and thermal properties and quench performance. The quadrupole mirror model assembly and test results are reported and discussed. C1 [Andreev, N.; Barzi, E.; Bossert, R.; Chlachidze, G.; Kashikhin, V. S.; Kashikhin, V. V.; Lamm, M. J.; Nobrega, F.; Novitski, I.; Tartaglia, M.; Turrioni, D.; Yamada, R.; Zlobin, A. V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Andreev, N (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM zlobin@fnal.gov NR 19 TC 5 Z9 5 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 288 EP 291 DI 10.1109/TASC.2009.2039704 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900041 ER PT J AU Ferracin, P Bingham, B Caspi, S Cheng, DW Dietderich, DR Felice, H Hafalia, AR Hannaford, CR Joseph, J Lietzke, AF Lizarazo, J Sabbi, G Wang, X AF Ferracin, P. Bingham, B. Caspi, S. Cheng, D. W. Dietderich, D. R. Felice, H. Hafalia, A. R. Hannaford, C. R. Joseph, J. Lietzke, A. F. Lizarazo, J. Sabbi, G. Wang, X. TI Recent Test Results of the High Field Nb3Sn Dipole Magnet HD2 SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Dipole magnet; Nb3Sn ID 35 MM BORE; DESIGN AB The 1 m long Nb3Sn dipole magnet HD2, fabricated and tested at Lawrence Berkeley National Laboratory, represents a step towards the development of block-type accelerator quality magnets operating in the range of 13-15 T. The magnet design features two coil modules composed of two layers wound around a titanium-alloy pole. The layer 1 pole includes a round cutout to provide room for a bore tube with a clear aperture of 36 mm. After a first series of tests where HD2 reached a maximum bore field of 13.8 T, corresponding to an estimated peak field on the conductor of 14.5 T, the magnet was disassembled and reloaded without the bore tube and with a clear aperture increased to 43 mm. We describe in this paper the magnet training observed in two consecutive tests after the removal of the bore tube, with a comparison of the quench performance with respect to the previous tests. An analysis of the voltage signals recorded before and after training quenches is then presented and discussed, and the results of coil visual inspections reported. C1 [Ferracin, P.; Bingham, B.; Caspi, S.; Cheng, D. W.; Dietderich, D. R.; Felice, H.; Hafalia, A. R.; Hannaford, C. R.; Joseph, J.; Lietzke, A. F.; Lizarazo, J.; Sabbi, G.; Wang, X.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Ferracin, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM pferracin@lbl.gov RI Wang, Xiaorong/D-5311-2009; OI Wang, Xiaorong/0000-0001-7065-8615 NR 7 TC 19 Z9 19 U1 1 U2 10 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 292 EP 295 DI 10.1109/TASC.2010.2042046 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900042 ER PT J AU Baynham, DE Bradshaw, TW Cobb, JH Green, MA Lau, WW Yang, SQ AF Baynham, D. E. Bradshaw, T. W. Cobb, J. H. Green, M. A. Lau, W. W. Yang, S. Q. TI Progress on the Design and Fabrication of the MICE Focusing Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Superconducting focusing magnet ID SYSTEM AB The Muon Ionization Cooling Experiment (MICE) focusing solenoid magnets focus the muon beam within the MICE cooling channel on a liquid or solid absorber that is within the warm bore of solenoid. The focusing magnet has a warm bore of 470 mm. This magnet consists of two coils 210-mm long that is separated by an aluminum mandrel that is 200 mm long. Each of the coils has its own leads. The coils may be operated in either the non-flip mode (solenoid mode with both coils at the same polarity) or the flip mode (quadrupole focusing mode where both coils are at opposite polarity). This report describes the focusing solenoid magnet design that will be built by the vendor. The progress on the construction of the first of the focusing magnets will also be discussed in this report. Ultimately three of these magnets will be built. These magnets will be cooled using a pair 1.5 W (at 4.2 K) pulse tube coolers. C1 [Baynham, D. E.; Bradshaw, T. W.] Rutherford Appleton Lab, Chilton OX11 0QX, England. [Cobb, J. H.; Lau, W. W.; Yang, S. Q.] Univ Oxford, Dept Phys, Oxford OX1 3RH, England. [Green, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Baynham, DE (reprint author), Rutherford Appleton Lab, Chilton OX11 0QX, England. EM magreen@lbl.gov NR 14 TC 0 Z9 0 U1 1 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 308 EP 311 DI 10.1109/TASC.2010.2040614 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900046 ER PT J AU Tartaglia, MA Burkhardt, E Leach, T Orris, DF Rabehl, R Terechkine, I Tompkins, JC AF Tartaglia, Michael A. Burkhardt, Earle Leach, Tony Orris, Darryl F. Rabehl, Roger Terechkine, Iouri Tompkins, John C. TI Summary of HINS Focusing Solenoid Production and Tests SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Superconducting solenoid accelerator magnet AB A compact R&D RF linac is being built at Fermilab to study several key technologies related to accelerating high intensity beams. One of the goals is reduction of beam losses through the use of solenoid lenses in the low energy front end of the linac. A total of 23 compact, high field, superconducting solenoids have been procured by Fermilab for the first (room-temperature RF) section of the linac. In this report we summarize the quench and magnetic performance of the lenses. C1 [Tartaglia, Michael A.; Orris, Darryl F.; Rabehl, Roger; Terechkine, Iouri; Tompkins, John C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Burkhardt, Earle; Leach, Tony] Cryomagnet Inc, Oak Ridge, TN 37830 USA. RP Tartaglia, MA (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM tartaglia@fnal.gov NR 3 TC 4 Z9 4 U1 1 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 312 EP 315 DI 10.1109/TASC.2009.2039468 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900047 ER PT J AU Wang, L Liu, XK Xu, FY Li, SY Pan, H Wu, H Guo, XL Zheng, SX Green, MA Li, DR Virostek, SP Zisman, MS AF Wang, L. Liu, X. K. Xu, F. Y. Li, S. Y. Pan, H. Wu, H. Guo, X. L. Zheng, S. X. Green, M. A. Li, D. R. Virostek, S. P. Zisman, M. S. TI Progress on Design and Construction of a MuCool Coupling Solenoid Magnet SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Coil; fabrication progress; MuCool superconducting magnet; updated design AB The MuCool program undertaken by the US Neutrino Factory and Muon Collider Collaboration is to study the behavior of muon ionization cooling channel components. A single superconducting coupling solenoid magnet is necessary to pursue the research and development work on the performance of high gradient, large size RF cavities immersed in magnetic field, which is one of the main challenges in the practical realization of ionization cooling of muons. The MuCool coupling magnet is to be built using commercial copper based niobium titanium conductors and cooled by two cryo-coolers with each cooling capacity of 1.5 W at 4.2 K. The solenoid magnet will be powered by using a single 300 A power supply through a single pair of binary leads that are designed to carry a maximum current of 210 A. The magnet is to be passively protected by cold diodes and resistors across sections of the coil and by quench back from the 6061 Al mandrel in order to lower the quench voltage and the hot spot temperature. The magnet is currently under construction. This paper presents the updated design and fabrication progress on the MuCool coupling magnet. C1 [Wang, L.; Liu, X. K.; Xu, F. Y.; Pan, H.; Wu, H.; Guo, X. L.; Zheng, S. X.] Harbin Inst Technol, Inst Cryogen & Superconductiv Technol, Harbin 150001, Peoples R China. [Li, S. Y.] Hilong Univ Sci & Technol, Harbin 150027, Peoples R China. [Green, M. A.; Li, D. R.; Virostek, S. P.; Zisman, M. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wang, L (reprint author), Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. EM wangli_icst@hit.edu.cn NR 6 TC 0 Z9 0 U1 1 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 320 EP 323 DI 10.1109/TASC.2010.2040615 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900049 ER PT J AU Wang, X Caspi, S Cheng, DW Dietderich, DR Felice, H Ferracin, P Godeke, A Joseph, JM Lizarazo, J Prestemon, SO Sabbi, G AF Wang, X. Caspi, S. Cheng, D. W. Dietderich, D. R. Felice, H. Ferracin, P. Godeke, A. Joseph, J. M. Lizarazo, J. Prestemon, S. O. Sabbi, G. TI Measurements on Subscale Y-Ba-Cu-O Racetrack Coils at 77 K and Self-Field SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Insert magnets; racetrack coils; Y-Ba-Cu-O coated conductors ID MAGNET TECHNOLOGY; DIPOLE MAGNET; NB3SN; SUPERCONDUCTORS AB YBa(2)Cu(3)O(7-delta) (YBCO) tapes carry significant amount of current at fields beyond the limit of Nb-based conductors. This makes the YBCO tapes a possible conductor candidate for insert magnets to increase the bore field of Nb(3)Sn high-field dipoles. As an initial step of the YBCO insert technology development, two subscale racetrack coils were wound using Kapton-insulated commercial YBCO tapes. Both coils had two layers; one had 3 turns in each layer and the other 10 turns. The coils were supported by G10 side rails and waxed strips and not impregnated. The critical current of the coils was measured at 77 K and self-field. A 2D model considering the magnetic-field dependence of the critical current was used to estimate the expected critical current. The measured results show that both coils reached 80%-95% of the expected values, indicating the feasibility of the design concept and fabrication process. C1 [Wang, X.; Caspi, S.; Cheng, D. W.; Dietderich, D. R.; Felice, H.; Ferracin, P.; Godeke, A.; Joseph, J. M.; Lizarazo, J.; Prestemon, S. O.; Sabbi, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wang, X (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM XRWang@lbl.gov; S_Caspi@lbl.gov; DWCheng@lbl.gov; DRDietderich@lbl.gov; Hfelice@lbl.gov; Pferracin@lbl.gov; Agodeke@lbl.gov; JMJoseph@lbl.gov; Jlizarazo@lbl.gov; SOPrestemon@lbl.gov; GLSabbi@lbl.gov RI Wang, Xiaorong/D-5311-2009; OI Wang, Xiaorong/0000-0001-7065-8615 NR 25 TC 10 Z9 10 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 368 EP 372 DI 10.1109/TASC.2010.2043349 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900061 ER PT J AU Wang, L Pan, H Guo, XL Xu, FY Liu, XK Wu, H Zheng, SX Green, MA Li, DR Virostek, SP Zisman, MS AF Wang, L. Pan, H. Guo, X. L. Xu, F. Y. Liu, X. K. Wu, H. Zheng, S. X. Green, M. A. Li, D. R. Virostek, S. P. Zisman, M. S. TI Design and Construction of a Prototype Solenoid Coil for MICE Coupling Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Quench; stress analysis; superconducting magnet; winding progress AB A superconducting coupling solenoid mounted around four conventional RF cavities, which produces up to 2.6 T central magnetic field to keep the muons within the cavities, is to be used for the Muon Ionization Cooling Experiment (MICE). The coupling coil made from copper matrix NbTi conductors is the largest of three types of magnets in MICE both in terms of 1.5 m inner diameter and about 13 MJ stored magnetic energy at full operation current of 210 A. The stress induced inside the coil assembly during cool down and magnet charging is relatively high. In order to validate the design method and develop the coil winding technique with inside-wound SC splices required for the coupling coil, a prototype coil made from the same conductor and with the same diameter and thickness but only one-fourth long as the coupling coil was designed and fabricated by ICST. The prototype coil was designed to be charged to strain conditions that are equivalent or greater than would be encountered in the coupling coil. This paper presents detailed design of the prototype coil as well as developed coil winding skills. The analyses on stress in the coil assembly and quench process were carried out. C1 [Wang, L.; Pan, H.; Guo, X. L.; Xu, F. Y.; Liu, X. K.; Wu, H.; Zheng, S. X.] HIT, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. [Green, M. A.; Li, D. R.; Virostek, S. P.; Zisman, M. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wang, L (reprint author), Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. EM wangli_icst@hit.edu.cn; panheng@hit.edu.cn; magreen@lbl.gov NR 7 TC 0 Z9 0 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 373 EP 376 DI 10.1109/TASC.2010.2040602 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900062 ER PT J AU Virostek, SP Green, MA AF Virostek, S. P. Green, M. A. TI The Results of Tests of the MICE Spectrometer Solenoids SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Solenoid magnet tests and pulse tube cooler AB The Muon Ionization Cooling Experiment (MICE) spectrometer solenoid magnets will be the first magnets to be installed within the MICE cooling channel. The spectrometer magnets are the largest magnets in both mass and surface area within the MICE cooling channel. Like all of the other magnets in MICE, the spectrometer solenoids are kept cold using 1.5 W (at 4.2 K) pulse tube coolers. The MICE spectrometer solenoid is quite possibly the largest magnet that has been cooled using small coolers. Two spectrometer magnets have been built and tested. This report discusses the results of current and cooler tests of both magnets. C1 [Virostek, S. P.; Green, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Virostek, SP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM magreen@lbl.gov NR 10 TC 6 Z9 6 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 377 EP 380 DI 10.1109/TASC.2010.2040603 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900063 ER PT J AU Martovetsky, NN Hatfield, DR Miller, JR Bruzzone, P Stepanov, B Seber, B AF Martovetsky, N. N. Hatfield, D. R. Miller, J. R. Bruzzone, P. Stepanov, B. Seber, B. TI Qualification of the US-Made Conductors for ITER Toroidal Field (TF) Magnet System SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Superconducting cables; superconducting device testing; superconducting materials measurements AB The U.S. Domestic Agency (USDA) is one of six suppliers of the TF conductor for ITER. To ensure that U.S.-made conductors are in compliance with ITER requirements, we prepared several lengths of the Cable-in-Conduit Conductors (CICC) and short samples for testing in the SULTAN facility in CRPP, Switzerland. We also fully characterized the strands that were used in these SULTAN samples. Fabrication experience and test results are presented and discussed. C1 [Martovetsky, N. N.] USIPO, ORNL, Oak Ridge Natl Lab, Lawrence Livermore Natl Lab, Oak Ridge, TN 37831 USA. [Seber, B.] Univ Geneva, CH-1211 Geneva 4, Switzerland. RP Martovetsky, NN (reprint author), USIPO, ORNL, Oak Ridge Natl Lab, Lawrence Livermore Natl Lab, Oak Ridge, TN 37831 USA. EM mar-tovetskyn@ornl.gov; millerjr1@usiter.org; pierluigi.bruzzone@psi.ch; Bernd.Seeber@physics.unige.ch NR 7 TC 7 Z9 7 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 466 EP 469 DI 10.1109/TASC.2010.2044493 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900084 ER PT J AU Stepanov, B Bruzzone, P Wesche, R Martovetsky, N Hatfield, D Vostner, A Devred, A AF Stepanov, B. Bruzzone, P. Wesche, R. Martovetsky, N. Hatfield, D. Vostner, A. Devred, A. TI Impact of Sample Preparation Procedure on the Test Results of Four US ITER TF Conductors SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Current non-uniformity; early voltage; ITER TF conductor; joint inter-strand resistance AB In the scope of the qualification tests of the ITER TF conductors, four samples for the SULTAN facility have been prepared, each consisting of two conductor sections manufactured by the US ITER Domestic Agency. The samples are nicknamed USTF1, USTF2, USTF3 and USTF4. The conductor sections used for USTF1 and USTF3, as well as those for USTF2 and USTF4, are identical. The conductor terminations for the samples USTF1 and USTF4 are prepared by the "solder filling" method, where a copper sleeve is swaged on the dismantled conductor before the heat treatment, and the cable space is filled with a soldering alloy by siphon after the heat treatment. In USTF2 and USTF3, the conductor terminations are dismantled after the heat treatment, and the cable ends are dipped into a bath of molten solder. The main test of the conductor characterization in SULTAN is the current sharing temperature (T(cs)) test at 10.78 T background field. The current is raised up to 68 kA current in steps of 10 kA. Then, the coolant temperature is raised in steps of 0.25 K till quench occurs. Early voltage is observed during the current ramp before heating even at relatively low current. Due to the broad voltage-temperature (V-T) transition, the early voltage causes an uncertainty in the assessment of the conductor performance. The comparison of the test result of USTF1 vs. USTF3 and USTF2 vs. USTF4 enables to clarify the impact of the termination preparation procedure on the early voltage. In the case the early voltage is caused by non-uniform current distribution and high inter-strand resistance at the joints, the V-T behavior should be clearly different. In this paper, the joint preparation procedures are described, and the impact of the joint preparation on the conductor performance is discussed. C1 [Stepanov, B.; Bruzzone, P.; Wesche, R.] EPFL CRPP, CH-5232 Villigen, Switzerland. [Martovetsky, N.; Hatfield, D.] Oak Ridge Natl Lab, US ITER Project Off, Oak Ridge, TN 37830 USA. [Vostner, A.; Devred, A.] ITER Org, F-13108 St Paul Les Durance, France. RP Stepanov, B (reprint author), EPFL CRPP, CH-5232 Villigen, Switzerland. EM boris.stepanov@psi.ch; martovetskyn@ornl.gov; Arnaud.Devred@iter.org NR 6 TC 7 Z9 7 U1 1 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 508 EP 511 DI 10.1109/TASC.2010.2041761 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900094 ER PT J AU Lombardo, V Bartalesi, A Barzi, E Lamm, M Turrioni, D Zlobin, AV AF Lombardo, V. Bartalesi, A. Barzi, E. Lamm, M. Turrioni, D. Zlobin, A. V. TI Modular Test Facility for HTS Insert Coils SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE High field solenoids; high temperature superconductors; muon collider; 2G HTS YBCO conductor AB The final beam cooling stages of a Muon Collider may require DC solenoid magnets with magnetic fields in the range of 40-50 T. In this paper we will present a modular test facility developed to investigate very high fields using double pancake coils made of commercially available 2G HTS materials. The conductor performance is presented, together with magnetic calculations and an evaluation of Lorentz forces distribution in the coils when inserted in an outer solenoid. Finally, results from tests in nitrogen and helium of a double pancake coil are presented up to an external magnetic field of 14 T. C1 [Lombardo, V.; Bartalesi, A.; Barzi, E.; Lamm, M.; Turrioni, D.; Zlobin, A. V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Lombardo, V (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM lombardo@fnal.gov NR 10 TC 4 Z9 4 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 587 EP 591 DI 10.1109/TASC.2010.2045489 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900112 ER PT J AU Painter, TA Adkins, T Bai, HY Bird, MD Bole, S Cantrell, K Chen, JP Dixon, IR Ehmler, H Gavrilin, A Han, K Lu, J Smeibidl, P Walsh, R Weijers, HW Xu, T Zhai, YH AF Painter, Thomas A. Adkins, Todd Bai, Hongyu Bird, Mark D. Bole, Scott Cantrell, Kurt Chen, Jingping Dixon, Iain R. Ehmler, Hartmut Gavrilin, Andy Han, Ke Lu, Jun Smeibidl, Peter Walsh, Robert Weijers, Huub W. Xu, Ting Zhai, Yuhu TI Recent Progress of the Series-Connected Hybrid Magnet Projects SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE CICC; series-connected hybrid AB The National High Magnetic Field Laboratory (NHMFL) in Tallahassee, Florida has designed and is now constructing two Series Connected Hybrid (SCH) magnets, each connecting a superconducting outsert coil and a resistive Florida Bitter insert coil electrically in series. The SCH to be installed at the NHMFL will produce 36 T and provide 1 ppm maximum field inhomogeneity over a 1 cm diameter spherical volume. The SCH to be installed at the Helmholtz Center Berlin (HZB) in combination with a neutron source will produce 25 T to 30 T depending on the resistive insert. The two magnets have a common design for their cable-in-conduit conductor (CICC) and superconducting outsert coils. The CICC outsert coil winding packs have an inner diameter of 0.6 m and contribute 13.1 T to the central field using three grades of CICC conductors. Each conductor grade carries 20 kA and employs the same type of Nb(3)Sn superconducting wire, but each grade contains different quantities of superconducting wires, different cabling patterns and different aspect ratios. The cryostats and resistive insert coils for the two magnets are different. This paper discusses the progress in CIC conductor and coil fabrication over the last year including specification, qualification and production activities for wire, cable, conductor and coil processing. C1 [Adkins, Todd; Bai, Hongyu; Bird, Mark D.; Bole, Scott; Cantrell, Kurt; Chen, Jingping; Dixon, Iain R.; Gavrilin, Andy; Han, Ke; Lu, Jun; Walsh, Robert; Weijers, Huub W.; Zhai, Yuhu] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. [Ehmler, Hartmut; Smeibidl, Peter] Helmholtz Ctr Berlin, Berlin, Germany. [Xu, Ting] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN USA. EM bird@magnet.fsu.edu; hartmut.ehmler@helmholtz-berlin.de; xut1@ornl.gov NR 7 TC 5 Z9 5 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 692 EP 695 DI 10.1109/TASC.2010.2041757 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900138 ER PT J AU Quettier, L Aubert, G Bredy, P Chance, A Nunio, F Schild, T Stepanov, V Vedrine, P Donati, A Beaudet, F AF Quettier, L. Aubert, G. Bredy, P. Chance, A. Nunio, F. Schild, T. Stepanov, V. Vedrine, P. Donati, A. Beaudet, F. TI Tests of a Prototype for Assessing the Field Homogeneity of the Iseult/Inumac 11.7 T Whole Body MRI Magnet SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Double pancake; high field; magnetic measurements; MRI AB A neuroscience research center with very high field MRI equipment was opened in November 2006 by the CEA life science division. One of the imaging systems requires a 11.75 T magnet with a 900 mm warm bore, the so-call Iseult/Inumac magnet. Regarding the large aperture and field strength, this magnet is a challenge as compared to the largest MRI systems ever built, and will be developed within an ambitious R&D program. With the objective of demonstrating the possibility of achieving field homogeneity better than 1 ppm using double pancake windings, a 24 double pancakes model coil, working at 1.5 T has been designed. This model magnet was manufactured by Alstom MSA and tested at CEA. It has been measured with a very high precision, in order to fully characterize the field homogeneity, and then to investigate and discriminate the parameters that influence the field map. This magnet has reached the bare magnet field homogeneity specification expected for Iseult and thus successfully demonstrated the feasibility of building a homogenous magnet with the double pancake winding technique. C1 [Quettier, L.; Aubert, G.; Bredy, P.; Chance, A.; Nunio, F.; Schild, T.; Stepanov, V.; Vedrine, P.; Donati, A.] Ctr Etud Saclay, CEA, Irfu, SACM, F-91191 Gif Sur Yvette, France. [Beaudet, F.] Alstom MSA, F-90018 Belfort, France. RP Quettier, L (reprint author), Jefferson Lab, Newport News, VA 23606 USA. EM quettier@jab.org; thierry.schild@cea.fr; francois.beaudet@power.alstom.com RI Schild, Thierry/J-6164-2013 NR 6 TC 5 Z9 5 U1 0 U2 16 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 722 EP 725 DI 10.1109/TASC.2010.2040815 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900145 ER PT J AU Sims, JR Schillig, JB Swenson, CA Gardner, DL Matlashov, AN Ammerman, CN AF Sims, James R. Schillig, Josef B. Swenson, Charles A. Gardner, David L. Matlashov, Andrei N. Ammerman, Curtt N. TI Low-Noise Pulsed Pre-Polarization Magnet Systems for Ultra-Low Field NMR SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Johnson noise; litz; perfluorocarbon pre-polarization; ULF-NMR AB A liquid cooled, pulsed electromagnet of solenoid configuration suitable for duty in an ultra-low field nuclear magnetic resonance system has been designed, fabricated and successfully operated. The magnet design minimizes Johnson noise, minimizes the hydrogen signal and incorporates minimal metal and no ferromagnetic materials. In addition, an acoustically quiet cooling system permitting 50% duty cycle operation was achieved by designing for single-phase, laminar flow, forced convection cooling. Winding, conductor splicing and epoxy impregnation techniques were successfully developed to produce a coil winding body with integral cooling passageways and adequate structural integrity. Issues of material compatibility, housing, coolant flow system and heat rejection system design will be discussed. Additionally, this pulsed electromagnet design has been extended to produce a boiling liquid cooled version in a paired solenoid configuration suitable for duty in an ultra-low field nuclear magnetic resonance system. This pair of liquid nitrogen cooled coils is currently being tested and commissioned. Issues of material compatibility, thermal insulation, thermal contraction, housing and coolant flow design are discussed. C1 [Sims, James R.; Schillig, Josef B.; Swenson, Charles A.; Gardner, David L.; Matlashov, Andrei N.; Ammerman, Curtt N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Sims, JR (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM jsims@lanl.gov NR 4 TC 5 Z9 5 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 752 EP 755 DI 10.1109/TASC.2010.2040613 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900152 ER PT J AU Piekarz, H Blowers, J Hays, S Huang, YN Shiltsev, V AF Piekarz, Henryk Blowers, Jamie Hays, Steven Huang, Yuenian Shiltsev, Vladimir TI Design Study and Test Arrangement of HTS Transmission Line Power Cable for Fast Cycling Accelerator Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE AC power losses; HTS cable; magnetic core; synchrotrons ID COATED CONDUCTORS; AC LOSS AB Designs of the HTS transmission line power cable and the matching magnetic core for a fast-cycling accelerator dipole magnet are presented. The hysteretic and eddy currents induced power losses of the proposed HTS cable operating under various sweeping magnetic fields are projected and compared to those of the LTS cable in similar applications. The engineering design of the HTS power cable for the fast cycling dipole magnet is presented, and the test arrangement of a short-sample cable operating under the sweeping magnetic field is described. C1 [Piekarz, Henryk; Blowers, Jamie; Hays, Steven; Huang, Yuenian; Shiltsev, Vladimir] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Piekarz, H (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM hpiekarz@fnal.gov NR 10 TC 2 Z9 2 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1300 EP 1303 DI 10.1109/TASC.2010.2042586 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900283 ER PT J AU Collings, EW Sumption, MD Susner, MA Barzi, E Turrioni, D Yamada, R Zlobin, AV Nijhuis, A AF Collings, Edward W. Sumption, Michael D. Susner, Michael A. Barzi, Emanuela Turrioni, Daniel Yamada, R. Zlobin, Alexander V. Nijhuis, Arend TI Coupling- and Persistent-Current Magnetizations of Nb3Sn Rutherford Cables SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Coupling magnetization; interstrand contact resistance; persistent-current magnetization; Rutherford cable ID CONTACT RESISTANCE; STABILITY; STRAND; CORE AB Multistrand cables may exhibit two classes of parasitic magnetization both of which can distort the bore-field of the host magnet. They are: (1) a dynamic magnetization that is produced by interstrand coupling currents generated by time-varying magnet excitation and moderated by the interstrand contact resistances (ICR), (2) a static magnetization ("hysteretic") resulting from the intrastrand persistent currents. This paper (i) compares the ICRs of two sets of cables with and without stainless steel cores and subjected to three levels of compaction during cabling, (ii) presents the results within the context the previously measured ICRs of a series of similar cables with cores of various widths, and (iii) concludes by comparing the LHC-ramp-rate induced coupling magnetization of a typical Rutherford cable with its transport-current-moderated persistent-current magnetizations at low and high fields. C1 [Collings, Edward W.; Sumption, Michael D.; Susner, Michael A.] Ohio State Univ, CSMM, MSE Dept, Columbus, OH 43210 USA. [Barzi, Emanuela; Turrioni, Daniel; Yamada, R.; Zlobin, Alexander V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Nijhuis, Arend] Univ Twente, Fac Appl Phys, Low Temp Div, NL-7500 AE Enschede, Netherlands. RP Collings, EW (reprint author), Ohio State Univ, CSMM, MSE Dept, Columbus, OH 43210 USA. EM collings@matsceng.ohio-state.edu; barzi@fnal.gov; zlobin@fnal.gov; a.nijhuis@tnw.utwente.nl RI Susner, Michael/B-1666-2013; Susner, Michael/G-3275-2015; Sumption, Mike/N-5913-2016 OI Susner, Michael/0000-0002-1211-8749; Susner, Michael/0000-0002-1211-8749; Sumption, Mike/0000-0002-4243-8380 NR 13 TC 6 Z9 6 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 EI 1558-2515 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1387 EP 1390 DI 10.1109/TASC.2010.2041202 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900303 ER PT J AU Kikuchi, A Yamada, R Tsuchiya, K Nakamoto, T Barzi, E Turrioni, D Sasaki, K Xu, QJ Terashima, A Takigawa, H Yamamoto, A Nakagawa, K Takeuchi, T Lamm, M Zlobin, AV AF Kikuchi, Akihiro Yamada, Ryuji Tsuchiya, Kiyosumi Nakamoto, Tatsushi Barzi, Emanuela Turrioni, Daniele Sasaki, Ken-ichi Xu, Qingjin Terashima, Akio Takigawa, Hiroyuki Yamamoto, Akira Nakagawa, Kazuhiko Takeuchi, Takao Lamm, Michael Zlobin, Alexander V. TI Strand and Cable Development for a High Field Nb3Al Common Coil Magnet SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Copper electroplating; critical current density; magnetization; Nb3Al strand; Rutherford cable; tantalum matrix ID ACCELERATOR MAGNET; RUTHERFORD CABLE; QUENCH AB Research and development of copper stabilized Nb3Al strands and cables for a high field Nb3Al common coil magnet is ongoing with the cooperation of KEK-NIMS-Fermilab. In this work, newly designed K1 and K2 strands and cables were fabricated. The K1 strand used tantalum for the inter-filament matrix only and the K2 strand used it for the entire strand matrix. Wire breakage happened on the drawing of both precursors, and it may be caused by the de-bonding of the inter-filament as well as poorer cold-workability of the tantalum itself. Non Cu J(c)'s at 12 T were 1,300 A / mm(2) at 4.2 K and 1,600 A / mm(2) at 1.9 K, an increase of about 20%. The low field magnetic instabilities at 4.2 K could be suppressed with K1 and K2 strands because of the tantalum inter-filament matrix. Similar superconducting characteristics were obtained on K1 and K2 strands. However, K2 strands showed excessive separation of the copper stabilizer when made into Rutherford cables, although K1 strands did not. The copper stabilizer prefers niobium as an interface material to obtain good bonding. C1 [Kikuchi, Akihiro; Takeuchi, Takao] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. [Yamada, Ryuji; Barzi, Emanuela; Turrioni, Daniele; Lamm, Michael; Zlobin, Alexander V.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Tsuchiya, Kiyosumi; Nakamoto, Tatsushi; Sasaki, Ken-ichi; Xu, Qingjin; Terashima, Akio; Takigawa, Hiroyuki; Yamamoto, Akira] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Nakagawa, Kazuhiko] Hitachi Cable Ltd, Tsuchiura, Ibaraki 3000026, Japan. RP Kikuchi, A (reprint author), Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. EM KIKUCHI.Aki-hiro@nims.go.jp RI TAKEUCHI, Takao/H-2753-2011 NR 10 TC 6 Z9 6 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1423 EP 1426 DI 10.1109/TASC.2010.2042705 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900312 ER PT J AU Yamada, R Kikuchi, A Barzi, E Chlachidze, G Rusy, A Takeuchi, T Tartaglia, M Turrioni, D Velev, V Wake, M Zlobin, AA AF Yamada, Ryuji Kikuchi, Akihiro Barzi, Emanuela Chlachidze, Guram Rusy, Allen Takeuchi, Takao Tartaglia, Michael Turrioni, Daniel Velev, Vesselin Wake, Masayoshi Zlobin, Alexander A. TI Comparison Between Nb3Al and Nb3Sn Strands and Cables for High Field Accelerator Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Nb3Al strand; Nb3Sn strand; Rutherford cable; superconducting magnet ID QUENCH AB The Nb3Al small racetrack magnet, SR07, has been successfully built and tested to its short sample limit beyond 10 Tesla without any training. Thus the practical application of Nb3Al strands for high field accelerator magnets is established. The characteristics of the representative F4 strand and cable, are compared with the typical Nb3Sn strand and cable. It is represented by the OST high current RRP Nb3Sn strand with 108/127 configuration. The effects of Rutherford cabling to both type strands are explained and the inherent problem of the Nb3Sn strand is discussed. Also the test results of two representative small racetrack magnets are compared from the stand point of Ic values, and training. The maximum current density of the Nb3Al strands is still smaller than that of the Nb3Sn strands, but if we take into account of the stress-strain characteristics, Nb3Al strands become somewhat favorable in some applications. C1 [Yamada, Ryuji; Barzi, Emanuela; Chlachidze, Guram; Rusy, Allen; Tartaglia, Michael; Turrioni, Daniel; Velev, Vesselin; Zlobin, Alexander A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Kikuchi, Akihiro; Takeuchi, Takao] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. [Wake, Masayoshi] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. RP Yamada, R (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM yamada@fnal.gov RI TAKEUCHI, Takao/H-2753-2011 NR 15 TC 1 Z9 2 U1 0 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1438 EP 1442 DI 10.1109/TASC.2009.2039990 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900316 ER PT J AU Jewell, MC Boutboul, T Oberli, LR Liu, F Wu, Y Vostner, A Isono, T Takahashi, Y Park, SH Shikov, A Vorobieva, A Martovetsky, N Seo, K Bessette, D Devred, A AF Jewell, Matthew C. Boutboul, Thierry Oberli, Luc-Rene Liu, Fang Wu, Yu Vostner, Alexander Isono, Takaaki Takahashi, Yoshikazu Park, Soo-Hyeon Shikov, Alexander Vorobieva, Alexandra Martovetsky, Nicolai Seo, Kazutaka Bessette, Denis Devred, Arnaud TI World-Wide Benchmarking of ITER Nb3Sn Strand Test Facilities SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Conductor procurement; NbTi; Nb3Sn AB The world-wide procurement of Nb3Sn and NbTi for the ITER superconducting magnet systems will involve eight to ten strand suppliers from six Domestic Agencies (DAs) on three continents. To ensure accurate and consistent measurement of the physical and superconducting properties of the composite strand, a strand test facility benchmarking effort was initiated in August 2008. The objectives of this effort are to assess and improve the superconducting strand test and sample preparation technologies at each DA and supplier, in preparation for the more than ten thousand samples that will be tested during ITER procurement. The present benchmarking includes tests for critical current (I-c), n-index, hysteresis loss (Q(hys)), residual resistivity ratio (RRR), strand diameter, Cu fraction, twist pitch, twist direction, and metal plating thickness (Cr or Ni). Nineteen participants from six parties (China, EU, Japan, South Korea, Russia, and the United States) have participated in the benchmarking. This round, conducted with a bronze-route Nb3Sn strand, involved samples prepared by a common laboratory (CERN) and sent out to the participants ("IO-prepared samples") and also samples prepared by each individual participant ("self-prepared samples"). I-c samples prepared and measured by CERN were found to have an average I-c of 188.7 A and a standard deviation of 1.8 A (1.0%), while those same set of samples measured by all the participating labs in round-robin fashion were found to have a standard deviation of 2.1 A. Self-prepared samples had an average I-c of 188.1 A, and showed a lab-to-lab standard deviation of 3.5 A. The results demonstrate significant progress in the world-wide capability to accurately and reproducibly measure Nb3Sn critical current over the past decade. Future benchmarking efforts will include an annual cross-check of supplier and DA facilities, and also a round of internal tin Nb3Sn samples to assess each contributor's sample-preparation techniques. A separate round of NbTi benchmarking is also envisioned. C1 [Jewell, Matthew C.; Seo, Kazutaka; Bessette, Denis; Devred, Arnaud] ITER Org Fus Energy, F-13607 St Paul Les Durance, France. [Boutboul, Thierry; Oberli, Luc-Rene] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland. [Liu, Fang; Wu, Yu] Chinese Acad Sci ASIPP, Inst Plasma Phys, Hefei 230031, Peoples R China. [Vostner, Alexander] Fus Energy F4E, Barcelona 08019, Spain. [Isono, Takaaki; Takahashi, Yoshikazu] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan. [Park, Soo-Hyeon] NFRI, Taejon 305333, South Korea. [Shikov, Alexander; Vorobieva, Alexandra] Bochvar Res Inst Inorgan Mat JSC VNIIAN, Moscow 123098, Russia. [Martovetsky, Nicolai] Oak Ridge Natl Lab, US ITER Project Off USIPO, Oak Ridge, TN 37831 USA. RP Jewell, MC (reprint author), ITER Org Fus Energy, F-13607 St Paul Les Durance, France. EM matthew.jewell@iter.org OI 刘, 方/0000-0002-2027-8080 NR 7 TC 21 Z9 21 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1500 EP 1503 DI 10.1109/TASC.2010.2043245 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900331 ER PT J AU Barzi, E Dhanaraj, N Lombardo, V Turrioni, D AF Barzi, Emanuela Dhanaraj, Nandhini Lombardo, Vito Turrioni, Daniele TI Design of a Probe for Strain Sensitivity Studies of Critical Current Densities in Superconducting Wires SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Critical current density; superconducting wire; tensile strain; Walters' spring ID DEPENDENCE; TAPES; DEVICE AB The critical current density (J(c)) of brittle superconducting wires used in high field magnets is very sensitive to axial strain. An accurate measurement of this strain dependence at various magnetic fields and temperatures is critical for magnet design and operation. A number of methods and techniques have been used, which generally fall into either the monotonic axial loading or bending spring techniques. The design of a variable-temperature probe to perform strain sensitivity measurements in Helium of both LTS and HTS wires is herein described. The sample is wound and soldered onto a helical Walters' spring device, which is fixed at one end and subjected to a torque at the free end. Both Ti-6Al-4V and CuBe were used as materials for the Walters' spring. Two concentric copper tubes act dually as 2000 A current and 60 Nm torque carriers. The torque is generated via a worm-gear setup and transmitted to the sample through the inner tube and spring assembly. C1 [Barzi, Emanuela; Dhanaraj, Nandhini; Lombardo, Vito; Turrioni, Daniele] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Barzi, E (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM barzi@fnal.gov NR 12 TC 2 Z9 2 U1 1 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1622 EP 1625 DI 10.1109/TASC.2009.2039991 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900361 ER PT J AU Velev, GV Harding, DJ Iedemska, I Kashikhin, VS Kashikhin, VV Makarov, A Makulski, A Orris, D AF Velev, G. V. Harding, D. J. Iedemska, I. Kashikhin, V. S. Kashikhin, V. V. Makarov, A. Makulski, A. Orris, D. TI Measurement of the Magnetic and Thermal Characteristics of Ferrites for a 300 kHz AC Dipole for the Mu2e Experiment SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Accelerator magnets; ferrites; magnetic measurements AB A charged lepton flavor violation experiment, Mu2e, is planned at Fermilab, searching for muon to electron conversions with an unprecedented sensitivity, better than 6 x 10(-17) at 90% CL. To achieve such sensitivity the incoming beam must be highly suppressed during the window for detecting the conversion a muon into an electron. One proposal for beam extinction is based on a collimator with two dipoles running in a resonant circuit at similar to 300 kHz synchronized to the bunch spacing. An appropriate choice of the ferrite material for the magnet yoke is critical to ensuring the reliable operation of such a high frequency dipole over the life of the experiment. In this paper, we present the results of the thermal and magnetic measurements of the selected ferrite material, including the field non-linearity effects and power losses. Some dimensional optimization of the ferrite bricks is also discussed. C1 [Velev, G. V.; Harding, D. J.; Kashikhin, V. S.; Kashikhin, V. V.; Makarov, A.; Makulski, A.; Orris, D.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Iedemska, I.] Moscow Inst Phys & Technol, Moscow, Russia. RP Velev, GV (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. EM velev@fnal.gov NR 7 TC 1 Z9 1 U1 1 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1642 EP 1645 DI 10.1109/TASC.2010.2042701 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900366 ER PT J AU Pan, H Wang, L Guo, XL Wu, H Green, MA AF Pan, H. Wang, L. Guo, X. L. Wu, H. Green, M. A. TI Mechanical Behavior Analysis of a Test Coil for MICE Coupling Solenoid During Quench SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Dynamic stress; MICE superconducting magnet; quench; stability AB The coupling magnet for the Muon Ionization Cooling Experiment has a self-inductance of 592 H and the magnet stored energy of 13 MJ at a full current of 210 A for the worst operation case of the MICE channel. During a quench, the stored energy and the high conductor current density will cause a large temperature rise and induce considerable impact of stresses. One test coil was built in order to validate the design method and practice the stress and strain situation which occurs in the coupling coil. In this study, the analysis on stress redistribution in the sub-divided winding during a quench was performed. The stress variation may bring about failure of epoxy resin, which is the cause of a new normal zone arising. Spring model for impregnating epoxy and fiber-glass cloth in the coil was used to evaluate the mechanical disturbance by impregnated materials failure. This paper presents the detailed dynamic stress and stability analysis to assess the stress distribution during the quench process and to check whether the transient loads are acceptable for the magnet. C1 [Pan, H.; Wang, L.; Guo, X. L.; Wu, H.] Harbin Inst Technol, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. [Green, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Pan, H (reprint author), Harbin Inst Technol, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. EM panheng@hit.edu.cn; wangli_icst@hit.edu.cn; magreen@lbl.gov NR 9 TC 0 Z9 0 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1892 EP 1895 DI 10.1109/TASC.2010.2042943 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900425 ER PT J AU Wang, L Pan, H Wu, H Guo, XL Cheng, Y Green, MA AF Wang, L. Pan, H. Wu, H. Guo, X. L. Cheng, Y. Green, M. A. TI Effects of Slip Planes on Stresses in MICE Coupling Solenoid Coil Assembly SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Friction coefficient; MICE superconducting coupling magnet; slip planes; stress analysis AB The MICE superconducting coupling solenoid magnet is made from copper matrix Nb-Ti conductors with inner radius of 750 mm, length of 285 mm and thickness of 110.4 mm at room temperature. The coil is to be wound on a mandrel made of aluminum. The peak magnetic field on the conductor is about 7.3 T when fully charged at 210 A. High magnetic field and large size make the stress inside the coupling coil assembly relatively high during cool down and full energizing. The shear stress between coil winding and aluminum casing may cause premature quench. To avoid quench potential induced by stress, slip planes were designed for the coil assembly. In this paper, FE models with and without slip planes for it have been developed to simulate the stresses during the process including winding, cooling down and charging. The stress distribution in the coil assembly with and without slip planes was investigated. The results show that slip planes with low friction coefficients can improve the stress condition in the coil, especially reduce the shear stress largely so that improve the stability. C1 [Wang, L.] Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. [Wang, L.; Pan, H.; Wu, H.; Guo, X. L.; Cheng, Y.] HIT, Inst Cryogenics & Superconduct Technol, Harbin 150001, Peoples R China. [Green, M. A.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wang, L (reprint author), Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. EM wangli_icst@hit.edu.cn; panheng@hit.edu.cn; magreen@lbl.gov NR 10 TC 1 Z9 1 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1940 EP 1943 DI 10.1109/TASC.2010.2040915 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900437 ER PT J AU Spencer, CM Adolphsen, C Berndt, M Jensen, DR Rogers, R Sheppard, JC St Lorant, S Weber, TB Weisend, J Brueck, H Toral, F AF Spencer, Cherrill M. Adolphsen, Chris Berndt, Martin Jensen, David R. Rogers, Ron Sheppard, John C. St Lorant, Steve Weber, Thomas B. Weisend, John, II Brueck, Heinrich Toral, Fernando TI Measuring the Magnetic Center Behavior and Field Quality of an ILC Superconducting Combined Quadrupole-Dipole Prototype SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Magnetic measurements; superconducting quadrupole magnet AB The main linacs of the proposed International Linear Collider (ILC) consist of superconducting cavities operated at 2 K. The accelerating cavities are contained in a contiguous series of cryogenic modules that also house the main linac quadrupoles, thus the quadrupoles also need to be superconducting. In an early ILC design, these magnets are about 0.6 m long, have cos(2 theta) coils, and operate at constant field gradients up to 60 T/m. In order to preserve the small beam emittances in the ILC linacs, the e+ and e- beams need to traverse the quadrupoles near their magnetic centers. A quadrupole shunting technique is used to measure the quadrupole alignment with the beams; this process requires the magnetic centers move by no more than about 5 micrometers when their strength is changed. To determine if such tight stability is achievable in a superconducting quadrupole, we at SLAC measured the magnetic center motions in a prototype ILC quadrupole built at CIEMAT in Spain. A rotating coil technique was used with a better than 0.1 micrometer precision in the relative field center position, and less than a 2 micrometer systematic error over 30 minutes. This paper describes the warm-bore cryomodule that houses the quadrupole in its Helium vessel, the magnetic center measurement system, the measured center data and strength and harmonics magnetic data. C1 [Spencer, Cherrill M.; Adolphsen, Chris; Berndt, Martin; Jensen, David R.; Rogers, Ron; Sheppard, John C.; St Lorant, Steve; Weber, Thomas B.; Weisend, John, II] SLAC, Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Brueck, Heinrich] DESY, D-22603 Hamburg, Germany. [Toral, Fernando] CIEMAT, CEDEX, Lab Conjunto Superconductividad Aplicada, E-28040 Madrid, Spain. RP Spencer, CM (reprint author), SLAC, Natl Accelerator Lab, Menlo Pk, CA 94025 USA. EM cher-rill@slac.stanford.edu; brueck@desy.de; fernando.toral@ciemat.es NR 3 TC 3 Z9 3 U1 1 U2 9 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 1964 EP 1968 DI 10.1109/TASC.2010.2041919 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900443 ER PT J AU Guo, XL Green, MA Wang, L Pan, H Wu, H AF Guo, X. L. Green, M. A. Wang, L. Pan, H. Wu, H. TI The Role of Quench-Back in the Passive Quench Protection of Long Solenoids With Coil Sub-Division SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Coil sub-division; magnet quench-back AB This paper describes how a passive quench protection system can be applied to long superconducting solenoid magnets. When a solenoid coil is long compared to its thickness, the magnet quench process will be dominated by the time needed for quench propagation along the magnet length. Quench-back will permit a long magnet to quench more rapidly in a passive way. Quench-back from a conductive (low resistivity) mandrel is essential for spreading the quench along the length of a magnet. The mandrel must be inductively coupled to the magnet circuit that is being quenched. Current induced in the mandrel by di/dt in the magnet produces heat in the mandrel, which in turn causes the superconducting coil wound on the mandrel to quench. Sub-division is often employed to reduce the voltages to ground within the coil. This paper explores when it is possible for quench-back to be employed for passive quench protection. The role of sub-division of the coil is discussed for long magnets. C1 [Guo, X. L.; Pan, H.; Wu, H.] HIT, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. [Green, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Wang, L.] Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China. RP Guo, XL (reprint author), HIT, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. EM magreen@lbl.gov NR 7 TC 6 Z9 6 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 2035 EP 2038 DI 10.1109/TASC.2010.2042435 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900460 ER PT J AU Sun, E Brindza, P Lassiter, S Fowler, M Xu, E AF Sun, Eric Brindza, Paul Lassiter, Steven Fowler, Michael Xu, Edward TI Coupled Transient Finite Element Simulation of Quench in Jefferson Lab's 11 GeV Super High Momentum Spectrometer Superconducting Magnets SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE Dipole; quadrupole; quench; superconducting magnet; transient finite element analysis AB This paper presents coupled transient thermal and electromagnetic finite element analysis of quench in the Q2, Q3, and dipole superconducting magnets using Vector Fields Quench code. Detailed temperature distribution within coils and aluminum force collars were computed at each time step. Both normal (quench with dump resistor) and worst-case (quench without dump resistor) scenarios were simulated to investigate the maximum temperatures. Two simulation methods were utilized, and their algorithms, implementation, advantages, and disadvantages are discussed. The first method simulated the coil using nonlinear transient thermal analysis directly linked with the transient circuit analysis. It was faster because only the coil was meshed and no eddy current was modeled. The second method simulated the whole magnet including the coil, the force collar, and the iron yoke. It coupled thermal analysis with transient electromagnetic field analysis which modeled electromagnetic fields including eddy currents within the force collar. Since eddy currents and temperature in the force collars were calculated in various configurations, segmentation of the force collars was optimized under the condition of fast discharge. C1 [Sun, Eric; Brindza, Paul; Lassiter, Steven; Fowler, Michael] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Xu, Edward] Cobham Tech Serv, Oxford OX5 1JE, England. RP Sun, E (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM qsun@jlab.org; edward.xu@cobham.com NR 8 TC 0 Z9 0 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 2168 EP 2171 DI 10.1109/TASC.2010.2042704 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900493 ER PT J AU Wu, H Wang, L Green, MA Pan, H Guo, XL AF Wu, H. Wang, L. Green, M. A. Pan, H. Guo, X. L. TI Thermal Stability Analysis for Superconducting Coupling Coil in MICE SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article; Proceedings Paper CT 21st International Conference on Magnet Technology (MT-21) CY OCT 18-23, 2009 CL Anhui, PEOPLES R CHINA SP Chinese Acad Sci & Inst Plasma Physics, Inst Elect Engn DE AC loss; HTS lead protection; thermal stability; transient temperature distribution AB The superconducting coupling coil to be used in the Muon Ionization Cooling Experiment (MICE) with inner radius of 750 mm, length of 285 mm and thickness of 110.4 mm will be cooled by a pair of 1.5 W at 4.2 K cryo-coolers. When the coupling coil is powered to 210 A, it will produce about 7.3 T peak magnetic field at the conductor and it will have a stored energy of 13 MJ. A key issue for safe operation of the coupling coil is the thermal stability of the coil during a charge and discharge. The magnet and its cooling system are designed for a rapid discharge where the magnet is to be discharged in 5400 seconds. The numerical simulation for the thermal stability of the MICE coupling coil has been done using ANSYS. The analysis results show that the superconducting coupling coil has a good stability and can be charged and discharged safely. C1 [Wu, H.; Pan, H.; Guo, X. L.] Harbin Inst Technol, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. [Wang, L.] HIT, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. [Green, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wu, H (reprint author), Harbin Inst Technol, Inst Cryogen & Superconduct Technol, Harbin 150001, Peoples R China. EM hitwuhong@163.com; wangli_icst@hit.edu.cn; magreen@lbl.gov NR 8 TC 0 Z9 0 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8223 J9 IEEE T APPL SUPERCON JI IEEE Trans. Appl. Supercond. PD JUN PY 2010 VL 20 IS 3 BP 2190 EP 2193 DI 10.1109/TASC.2010.2041640 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 672CF UT WOS:000283559900498 ER PT J AU Roesler, AW Schare, JM Glass, SJ Ewsuk, KG Slama, G Abel, D Schofield, D AF Roesler, Alexander W. Schare, Joshua M. Glass, S. Jill Ewsuk, Kevin G. Slama, George Abel, David Schofield, Daryl TI Planar LTCC Transformers for High-Voltage Flyback Converters SO IEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES LA English DT Article DE Ceramics; dc-dc power conversion; ferrite devices; switched mode power supplies; transformer cores; transformer windings; transformers AB This paper discusses the design and use of low-temperature (850 degrees C to 950 degrees C) cofired ceramic (LTCC) planar magnetic flyback transformers for applications that require conversion of a low-voltage to high-voltage (>100-V) with significant volumetric constraints. Measured performance and modeling results for multiple designs show that the LTCC flyback transformer design and construction imposes serious limitations on the achievable coupling, and significantly impacts the transformer performance and output voltage. This paper discusses the impact of various design factors that can provide improved performance by increasing transformer coupling and output voltage. The experiments performed on prototype units demonstrate LTCC transformer designs capable of greater than 2-kV output. Finally, the paper investigates the effect of the LTCC microstructure on transformer insulation. Although this paper focuses on generating voltages in the kV range, the experimental characterization and discussion presented in this paper applies to designs requiring lower voltage. C1 [Roesler, Alexander W.; Schare, Joshua M.; Glass, S. Jill; Ewsuk, Kevin G.] Sandia Natl Labs, Albuquerque, NM 87123 USA. [Slama, George; Abel, David; Schofield, Daryl] NASCENTechnology, Watertown, SD 57201 USA. RP Roesler, AW (reprint author), Sandia Natl Labs, Albuquerque, NM 87123 USA. EM awroesl@sandia.gov; jmschar@sandia.gov; sjglass@sandia.gov; kgewsuk@sandia.gov; gslama@nascentechnology.com; dabel@nascentechnology.com; dschofield@nascentechnology.com FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Manuscript received February 2, 2009; revised August 6, 2009. Date of publication October 30, 2009; date of current version June 9, 2010. 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. Recommended for publication by Associate Editor J.E. Morris upon evaluation of reviewers' comments. NR 8 TC 11 Z9 12 U1 0 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1521-3331 J9 IEEE T COMPON PACK T JI IEEE Trans. Compon. Packaging Technol. PD JUN PY 2010 VL 33 IS 2 BP 359 EP 372 DI 10.1109/TCAPT.2009.2031872 PG 14 WC Engineering, Manufacturing; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 649NW UT WOS:000281779500012 ER PT J AU Lai, JB Christodoulou, CG AF Lai, Jesse B. Christodoulou, Christos G. TI A Very High Sensitivity RF Pulse Profile Measurement System SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article DE Dynamic range; measurement; modulation; power amplifiers; pulse measurements; transmitters AB A technique for characterizing the pulse profile of a radio-frequency (RF) amplifier over a very wide power range under fast-pulsing conditions is presented. A pulse-modulated transmitter is used to drive a device under test (DUT) with a phase-coded signal that allows for an increased measurement range beyond standard techniques. A measurement receiver that samples points on the output pulse power profile and performs the necessary signal processing and coherent pulse integration, improving the detectability of low-power signals, is described. The measurement technique is applied to two sample amplifiers under fast-pulsing conditions with a pulsewidth of 250 ns at 3-GHz carrier frequency. A full measurement range of greater than 160 dB is achieved, extending the current state of the art in pulse-profiling techniques. C1 [Lai, Jesse B.] Sandia Natl Labs, Elect Syst Ctr, Albuquerque, NM 87185 USA. [Christodoulou, Christos G.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA. RP Lai, JB (reprint author), Sandia Natl Labs, Elect Syst Ctr, Albuquerque, NM 87185 USA. EM jlai@sandia.gov; christos@ece.unm.edu FU U.S. 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 U.S. Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. NR 15 TC 2 Z9 2 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD JUN PY 2010 VL 59 IS 6 BP 1616 EP 1623 DI 10.1109/TIM.2009.2027763 PG 8 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 596BP UT WOS:000277658600012 ER PT J AU Randeniya, DIB Sarkar, S Gunaratne, M AF Randeniya, Duminda I. B. Sarkar, Sudeep Gunaratne, Manjriker TI Vision-IMU Integration Using a Slow-Frame-Rate Monocular Vision System in an Actual Roadway Setting SO IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS LA English DT Article DE Inertial navigation; intelligent vehicles; multisensor fusion; vision-inertial-Globall Positioning System (GPS) fusion ID INTELLIGENT VEHICLES; MULTISENSOR FUSION; STEREO; CALIBRATION; TRACKING AB We present results of an effort where position and orientation data from vision and inertial sensors are integrated and validated using data from an actual roadway. Information from a sequence of images, which were captured by a monocular camera attached to a survey vehicle at a maximum frequency of 3 frames/s, is fused with position and orientation estimates from the inertial system to correct for inherent error accumulation in such integral-based systems. The rotations and translations are estimated from point correspondences tracked through a sequence of images. To reduce unsuitable correspondences, we used constraints such as epipolar lines and correspondence flow directions. The vision algorithm automatically operates and involves the identification of point correspondences, the pruning of correspondences, and the estimation of motion parameters. To simply obtain the geodetic coordinates, i.e., latitude, longitude, and altitude, from the translation-direction estimates from the vision sensor, we expand the Kalman filter space to incorporate distance. Hence, it was possible to extract the translational vector from the available translational direction estimate of the vision system. Finally, a decentralized Kalman filter is used to integrate the position estimates based on the vision sensor with those of the inertial system. The fusion of the two sensors was carried out at the system level in the model. The comparison of integrated vision-inertial-measuring-unit (IMU) position estimates with those from inertial-GPS system output and actual survey demonstrates that vision sensing can be used to reduce errors in inertial measurements during potential GPS outages. C1 [Randeniya, Duminda I. B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Sarkar, Sudeep] Univ S Florida, Dept Comp Sci & Engn, Tampa, FL 33620 USA. [Gunaratne, Manjriker] Univ S Florida, Dept Civil Engn, Tampa, FL 33620 USA. RP Randeniya, DIB (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM randeniyadi@ornl.gov; sarkar@cse.usf.edu; gunaratn@eng.usf.edu RI Sarkar, Sudeep/A-8213-2009 OI Sarkar, Sudeep/0000-0001-7332-4207 NR 38 TC 17 Z9 18 U1 0 U2 10 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1524-9050 EI 1558-0016 J9 IEEE T INTELL TRANSP JI IEEE Trans. Intell. Transp. Syst. PD JUN PY 2010 VL 11 IS 2 BP 256 EP 266 DI 10.1109/TITS.2009.2038276 PG 11 WC Engineering, Civil; Engineering, Electrical & Electronic; Transportation Science & Technology SC Engineering; Transportation GA 607WS UT WOS:000278538600003 ER PT J AU Vogel, A Wintz, S Kimling, J Bolte, M Strache, T Fritzsche, M Im, MY Fischer, P Meier, G Fassbender, J AF Vogel, Andreas Wintz, Sebastian Kimling, Judith Bolte, Markus Strache, Thomas Fritzsche, Monika Im, Mi-Young Fischer, Peter Meier, Guido Fassbender, Juergen TI Domain-Wall Pinning and Depinning at Soft Spots in Magnetic Nanowires SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article DE Domain walls and domain structure; intrinsic properties of magnetically ordered materials; magnetic properties of nanostructures; magnetization reversal mechanisms ID X-RAY MICROSCOPY; IMPLANTATION; PERMALLOY AB The local modification of magnetic properties by ion irradiation opens the possibility to create pinning sites for domain walls in magnetic nanowires without geometric constrictions. Implantation of chromium ions into Ni(80)Fe(20) nanowires is used to cause a local reduction of the saturation magnetization M(s) and thus a decrease of the energy associated with the domain wall. Field-driven pinning and depinning of a domain wall at the here so-called magnetic soft spots is directly observed using magnetic transmission soft X-ray microscopy. The pinning rate and the depinning field considerably depend on the wire width and the chromium fluence. C1 [Vogel, Andreas; Kimling, Judith; Bolte, Markus; Meier, Guido] Univ Hamburg, Inst Angew Phys, D-2000 Hamburg, Germany. [Wintz, Sebastian; Strache, Thomas; Fritzsche, Monika; Fassbender, Juergen] Univ Hamburg, Zentrum Mikrostrukturforsch, D-2000 Hamburg, Germany. [Im, Mi-Young; Fischer, Peter] Forschungszentrum Dresden Rossendorf, Inst Ionenstrahlphys & Mat Forsch, Dresden, Germany. [Im, Mi-Young; Fischer, Peter] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Vogel, A (reprint author), Univ Hamburg, Inst Angew Phys, Jungiusstr 11, D-2000 Hamburg, Germany. EM andreas.vogel@physnet.uni-hamburg.de; s.wintz@fzd.de RI Fassbender, Juergen/A-8664-2008; Wintz, Sebastian/E-3456-2012; MSD, Nanomag/F-6438-2012; Fischer, Peter/A-3020-2010 OI Fassbender, Juergen/0000-0003-3893-9630; Wintz, Sebastian/0000-0001-6138-8078; Fischer, Peter/0000-0002-9824-9343 FU U.S. Department of Energy [DE-AC02-05-CH11231]; Deutsche Forschungsgemeinschaft FX The measurements were performed at the Advanced Light Source which is supported by the U.S. Department of Energy under Contract DE-AC02-05-CH11231. This work was support in part by the Deutsche Forschungsgemeinschaft via the Graduiertenkolleg 1286 and the Sonderforschungsbereich 668. The authors would like to thank M. Volkmann and I. Winkler for superb technical support. NR 18 TC 9 Z9 9 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JUN PY 2010 VL 46 IS 6 BP 1708 EP 1710 DI 10.1109/TMAG.2010.2042285 PG 3 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 601DH UT WOS:000278037800111 ER PT J AU Sun, CJ Stafford, D Acharya, R AF Sun, Cheng-Jun Stafford, Donald Acharya, Ramamurthy TI FePt-Based Exchange-Coupled Composite Perpendicular Recording Media SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article DE Hard disks; perpendicular magnetic anisotropy; perpendicular magnetic recording; thin films AB In order to demonstrate the strong and proper exchange coupling between bottom magnetic layer and capping magnetic layer in FePt-based exchange-coupled composite (ECC) perpendicular recording media, we have investigated the thermal stability, writability, degree of exchange coupling, and ECC gain factor of FePt-based ECC media as a function of the thickness of the capping FePt layer. With increasing the thickness of capping FePt layer, both thermal stability and media writability increase simultaneously as a result of the change from strong exchange coupling to proper exchange coupling. The proper exchange-coupled FePt ECC is a promising candidate for future high-density perpendicular recording. C1 [Sun, Cheng-Jun; Stafford, Donald; Acharya, Ramamurthy] Western Digital Media Inc, San Jose, CA 95131 USA. [Sun, Cheng-Jun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Sun, CJ (reprint author), Western Digital Media Inc, San Jose, CA 95131 USA. EM cjsun@aps.anl.gov NR 15 TC 3 Z9 3 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JUN PY 2010 VL 46 IS 6 BP 1795 EP 1797 DI 10.1109/TMAG.2010.2040714 PG 3 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 601DH UT WOS:000278037800135 ER PT J AU Ebke, D Kugler, Z Thomas, P Schebaum, O Schafers, M Nissen, D Schmalhorst, J Hutten, A Arenholz, E Thomas, A AF Ebke, Daniel Kugler, Zoe Thomas, Patrick Schebaum, Oliver Schaefers, Markus Nissen, Dennis Schmalhorst, Jan Huetten, Andreas Arenholz, Elke Thomas, Andy TI X-Ray Absorption and Magnetic Circular Dichroism Studies of Co-2 FeAl in Magnetic Tunnel Junctions SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article DE Magnetic films; magnetoresistance; thin films; X-ray spectroscopy ID SPIN POLARIZATION AB The bulk magnetic moment and the element specific magnetic moment of Co-2 FeAl thin films were examined as a function of annealing temperature by alternating gradient magnetometer (AGM) and X-ray absorption spectroscopy (XAS)/X-ray magnetic circular dichroism (XMCD), respectively. A high magnetic moment can be achieved for all annealing temperatures and the predicted bulk and interface magnetic moment of about 5 mu(B) are reached via heating. We will also present tunnel magnetoresistance (TMR) values of up to 153% at room temperature and 260% at 13 K for MgO based magnetic tunnel junctions (MTJs) with Co-2 FeAl and Co-Fe electrodes. C1 [Ebke, Daniel; Kugler, Zoe; Thomas, Patrick; Schebaum, Oliver; Schaefers, Markus; Nissen, Dennis; Schmalhorst, Jan; Huetten, Andreas; Thomas, Andy] Univ Bielefeld, Thin Films & Phys Nanostruct Phys Dept, D-33615 Bielefeld, Germany. [Arenholz, Elke] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Ebke, D (reprint author), Univ Bielefeld, Thin Films & Phys Nanostruct Phys Dept, D-33615 Bielefeld, Germany. EM debke@physik.uni-bielefeld.de RI Hutten, Andreas/B-3524-2011; Ebke, Daniel/A-4357-2010; Schmalhorst, Jan/E-9951-2011; Thomas, Andy/C-7210-2008 OI Thomas, Andy/0000-0001-8594-9060 FU German Bundesministerium fur Bildung und Forschung (BMBF); Advanced Light Source at Berkeley; 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 German Bundesministerium fur Bildung und Forschung (BMBF) for within the project HeuSpin. The authors gratefully acknowledge the support of the Advanced Light Source at Berkeley. The Advanced Light Source, Berkeley, CA, is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract DE-AC02-05CH11231. The authors thank A. Weddemann for band structure calculations. NR 26 TC 2 Z9 2 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9464 EI 1941-0069 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JUN PY 2010 VL 46 IS 6 BP 1925 EP 1928 DI 10.1109/TMAG.2010.2041049 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 601DH UT WOS:000278037800169 ER PT J AU Wu, Y Rao, KV Voit, W Tamaki, T Jayakumar, OD Belova, L Liu, YS Glans, PA Chang, CL Guo, JH AF Wu, Yan Rao, K. V. Voit, Wolfgang Tamaki, Takahiko Jayakumar, O. D. Belova, Lyubov Liu, Y. S. Glans, P. A. Chang, C. L. Guo, Jing Hua TI Room Temperature Ferromagnetism and Fast Ultraviolet Photoresponse of Inkjet-Printed Mn-Doped ZnO Thin Films SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article DE Ferromagnetism; inkjet printing; Mn-doped ZnO; photoresponse ID FIELD-EFFECT TRANSISTORS; MAGNETIC SEMICONDUCTORS; NANOPARTICLES; ZN1-XMNXO AB We have synthesized Mn-doped ZnO thin films by inkjet printing using a two-step annealing process at 200 C for the decomposition of the organic compounds, and at various temperatures above 400 degrees C to tailor room temperature ferromagnetism. Highly c axis oriented 80 to 400 nm thin films on ( 001) Si substrates are obtained with a magnetic moment as large as 2.1 mu(B)/Mn(2+). X-ray absorption and emission spectra measurements at the O K edge and the Mn L edge suggest strong p-d hybridization between the Mn(2+) and O(2-). Furthermore, Mn L edge XAS indicates the emergence of Mn(3+) /Mn(4+) mixed valence states for films annealed above 500 degrees C that leads to suppression of ferromagnetic ordering. All of these films show large and fast ultraviolet (UV) photoresponse with the decay times of about 0.5 ms, suggesting the potential for designing multifunctional UV sensors. C1 [Wu, Yan; Rao, K. V.; Voit, Wolfgang; Tamaki, Takahiko; Belova, Lyubov] Royal Inst Technol, Dept Mat Sci Tmfy MSE, S-10044 Stockholm, Sweden. [Jayakumar, O. D.] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India. [Liu, Y. S.; Glans, P. A.; Guo, Jing Hua] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Liu, Y. S.; Chang, C. L.] Tamkang Univ, Dept Phys, Tamsui 250, Taiwan. RP Rao, KV (reprint author), Royal Inst Technol, Dept Mat Sci Tmfy MSE, S-10044 Stockholm, Sweden. EM rao@kth.se RI Belova, Lyubov/A-9868-2011; Wu, Yan/D-7598-2011; Rao, K.V./F-4577-2011; Glans, Per-Anders/G-8674-2016 OI Belova, Lyubov/0000-0003-4889-4210; Wu, Yan/0000-0002-1252-5600; FU Swedish Funding Agency VINNOVA; SRC; Hero-M Excellence Center; China Scholarship Council; U.S. DOE [DE-AC02-05CH11231] FX The authors thank Dr. V. Strom and Dr. J. Xu for valuable discussions. This work was supported by the Swedish Funding Agency VINNOVA, SRC, and the Hero-M Excellence Center. Y. Wu is grateful for the fellowship by the China Scholarship Council-KTH program. Work at ALS was supported by U.S. DOE under Contract DE-AC02-05CH11231. NR 31 TC 7 Z9 7 U1 1 U2 27 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JUN PY 2010 VL 46 IS 6 BP 2152 EP 2155 DI 10.1109/TMAG.2010.2043230 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 601DH UT WOS:000278037800227 ER PT J AU Zhang, HQ Li, CJ Divan, R Hoffmann, A Wang, PS AF Zhang, Hanqiao Li, Chaojiang Divan, Ralu Hoffmann, Axel Wang, Pingshan TI Broadband Mag-Noise of Patterned Permalloy Thin Films SO IEEE TRANSACTIONS ON MAGNETICS LA English DT Article DE Magnetic noise; patterned permalloy thin films; Y-factor method ID THERMAL MAGNETIZATION NOISE; SPIN-VALVE DEVICES; HIGH-FREQUENCY PROPERTIES; MAGNETORESISTIVE SENSORS; FLUCTUATIONS; HEADS AB A Y-factor noise figure (NF) measurement method is developed to characterize high-frequency mag-noise of a 550 nm wide Permalloy strip array under different dc bias currents. The noise voltage density is obtained. The proposed lumped element transmission line model describes noise properties of the patterned Py array well. Measurement data show that rapid ferromagnetic resonance frequencies (FMR) shift induced by dc bias current is related to the excess magnetization fluctuation thermally created by the combined dc current Joule heating effects and orthogonal Oersted fields. C1 [Zhang, Hanqiao; Li, Chaojiang; Wang, Pingshan] Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA. [Divan, Ralu; Hoffmann, Axel] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Divan, Ralu; Hoffmann, Axel] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Zhang, HQ (reprint author), Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA. EM hanqiaz@clemson.edu RI Hoffmann, Axel/A-8152-2009 OI Hoffmann, Axel/0000-0002-1808-2767 FU Army Research Office [2005567]; U.S. Department of Energy [DE-AC02-06CH1357] FX This work was supported in part by the Army Research Office, Grant 2005567 and by the U.S. Department of Energy under Contract DE-AC02-06CH1357. NR 27 TC 5 Z9 5 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9464 J9 IEEE T MAGN JI IEEE Trans. Magn. PD JUN PY 2010 VL 46 IS 6 BP 2442 EP 2445 DI 10.1109/TMAG.2010.2040071 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 601DH UT WOS:000278037800303 ER PT J AU Janecek, M Moses, WW AF Janecek, Martin Moses, William W. TI Simulating Scintillator Light Collection Using Measured Optical Reflectance SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Lambertian reflection; light collection; Monte Carlo methods ID CRYSTAL-SURFACES; GATE; SPECT; PET; PLATFORM; DETECTOR AB To accurately predict the light collection from a scintillating crystal through Monte Carlo simulations, it is crucial to know the angular distribution from the surface reflectance. Current Monte Carlo codes allow the user to set the optical reflectance to a linear combination of backscatter spike, specular spike, specular lobe, and Lambertian reflections. However, not all light distributions can be expressed in this way. In addition, the user seldom has the detailed knowledge about the surfaces that is required for accurate modeling. We have previously measured the angular distributions within BGO crystals and now incorporate these data as look-up-tables (LUTs) into modified Geant4 and GATE Monte Carlo codes. The modified codes allow the user to specify the surface treatment (ground, etched, or polished), the attached reflector (Lumirror (R), Teflon (R), ESR film, Tyvek (R), or TiO paint), and the bonding type (air-coupled or glued). Each LUT consists of measured angular distributions with 4 degrees by 5 degrees resolution in theta and phi, respectively, for incidence angles from 0 degrees to 90 degrees degrees, in 1 degrees-steps. We compared the new codes to the original codes by running simulations with a 3 x 10 x 30 mm(3) BGO crystal coupled to a PMT. The simulations were then compared to measurements. Light output was measured by counting the photons detected by the PMT with the 3 x 10, 3 x 30, or 10 x 30 mm(2) side coupled to the PMT, respectively. Our new code shows better agreement with the measured data than the current Geant4 code. The new code can also simulate reflector materials that are not pure specular or Lambertian reflectors, as was previously required. Our code is also more user friendly, as no detailed knowledge about the surfaces or light distributions is required from the user. C1 [Janecek, Martin; Moses, William W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Janecek, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM mjanecek@lbl.gov; wwmoses@lbl.gov FU U.S. Department of Energy [DE-AC02-05CH11231, NNSA LB06-316-PD05/NN2001000] FX Manuscript received June 09, 2009; revised September 25, 2009; accepted January 28, 2010. Date of current version June 16, 2010. This work was supported in part by the National Nuclear Security Administration, Office of Defense Nuclear Nonproliferation, Office of Nuclear Nonproliferation Research and Engineering (NA-22) of the U.S. Department of Energy under Contract DE-AC02-05CH11231 and Grant NNSA LB06-316-PD05/NN2001000. NR 16 TC 33 Z9 36 U1 1 U2 17 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 964 EP 970 DI 10.1109/TNS.2010.2042731 PN 1 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JT UT WOS:000278812100007 ER PT J AU Judy, PG Gong, ZY Dinion, NL Welch, BL Saviour, TS Kieper, D Majewski, S McKisson, J Kross, B Proffitt, J Stolin, AV More, MJ Williams, MB AF Judy, Patricia G. Gong, Zongyi Dinion, Nicole L. Welch, Benjamin L. Saviour, Torre St. Kieper, Doug Majewski, Stan McKisson, John Kross, Brian Proffitt, James Stolin, Alexander V. More, Mitali J. Williams, Mark B. TI Analysis of Image Combination Methods for Conjugate Breast Scintigraphy SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Breast scintigraphy; conjugate imaging; molecular breast imaging ID GAMMA-CAMERA; TC-99M SESTAMIBI; PRONE SCINTIMAMMOGRAPHY; QUANTITATIVE PLANAR; ORGAN ACTIVITY; CANCER; QUANTIFICATION; DIAGNOSIS; MODALITY; TL-201 AB The main objective of the present study was to determine if combining the two images from a conjugate counting system might improve the contrast and signal-to-noise ratio (SNR) of small lesions in all regions of the breast compared to images from a single camera. Several methods for combining the opposing pixels of the two camera images were compared: multiplication, geometric mean, and summation. The image quality metrics measured were spatial resolution, lesion contrast and lesion SNR. These quantities were evaluated both theoretically and experimentally. A capillary phantom was used to measure the spatial resolution as a function of lesion depth and to assess the translation and angular offsets between the two cameras. An acrylic box phantom, with spherical lesions suspended inside, was used to evaluate contrast and SNR as a function of lesion position. Both theoretically and experimentally the spatial resolution in the product images was superior to that in the single images, geometric mean or summation images. Relative to the single camera images, the geometric mean or the summed images, the lesion contrast and SNR of the product images were superior, irrespective of lesion depth, and were more constant with changing lesion depth compared to the single camera images. These findings suggest that improved lesion detectability is possible by imaging simultaneously from both sides of the breast, and forming a combined image using pixel-by-pixel multiplication. This may be especially important if the location of the lesion within the breast is not known a priori. C1 [Judy, Patricia G.; Gong, Zongyi; Dinion, Nicole L.; More, Mitali J.; Williams, Mark B.] Univ Virginia, Charlottesville, VA 22908 USA. [Welch, Benjamin L.; Saviour, Torre St.; Kieper, Doug] Dilon Technol Inc, Newport News, VA 23606 USA. [Majewski, Stan; Stolin, Alexander V.] W Virginia Univ, Morgantown, WV 26506 USA. [McKisson, John; Kross, Brian] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Proffitt, James] Adapt IO Inc, Blacksburg, VA 24060 USA. RP Judy, PG (reprint author), Univ Virginia, Charlottesville, VA 22908 USA. EM pattyjudy@gmail.com; zg9x@virginia.edu; nld4f@virginia.edu; bwelch@dilon.com; tstsaviour@dilon.com; dkieper@dilon.com; smajewski@hsc.wvu.edu; mckisson@jlab.org; kross@jlab.org; jmproffitt@gmail.com; astolin@hsc.wvu.edu; mmitali@gmail.com; mb-williams@virginia.edu FU Johnson and Johnson Corporate Office of Science and Technology; DOE Office of Biological and Environmental Research; DOE Office of Nuclear Physics FX This work was supported in part by a grant from the Johnson and Johnson Corporate Office of Science and Technology and in part by the DOE Office of Biological and Environmental Research and in part by the DOE Office of Nuclear Physics. NR 24 TC 5 Z9 5 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1146 EP 1154 DI 10.1109/TNS.2009.2038472 PN 1 PG 9 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JT UT WOS:000278812100030 ER PT J AU Kang, CS Williams, RT Bizarri, GA Glodo, J Melcher, C Moses, WW Wojtowicz, AJ Nikl, M AF Kang, Chang Sun Williams, Richard T. Bizarri, Gregory A. Glodo, Jarek Melcher, Chuck Moses, William W. Wojtowicz, Andrzej J. Nikl, Martin TI 10TH INTERNATIONAL CONFERENCE ON INORGANIC SCINTILLATORS AND THEIR APPLICATIONS (SCINT 2009) Jeju Island, Korea, June 8-12, 2009 SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Editorial Material C1 [Kang, Chang Sun] Seoul Natl Univ, Seoul 151, South Korea. [Williams, Richard T.] Wake Forest Univ, Winston Salem, NC 27109 USA. [Bizarri, Gregory A.; Moses, William W.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Melcher, Chuck] Univ Tennessee, Knoxville, TN 37996 USA. RP Kang, CS (reprint author), Seoul Natl Univ, Seoul 151, South Korea. RI Wojtowicz, Andrzej/D-7418-2014 OI Wojtowicz, Andrzej/0000-0001-5788-5987 NR 0 TC 0 Z9 0 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1161 EP 1161 DI 10.1109/TNS.2010.2049914 PN 2 PG 1 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JU UT WOS:000278812200001 ER PT J AU Williams, RT Ucer, KB Grim, JQ Lipke, KC Trefilova, LM Moses, WW AF Williams, Richard T. Ucer, Kamil B. Grim, Joel Quedar Lipke, Kyle C. Trefilova, Larysa M. Moses, William W. TI Picosecond Studies of Transient Absorption Induced by BandGap Excitation of CsI and CsI:Tl at Room Temperature SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 10th International Conference on Inorganic Scintillators and their Applications CY JUN 08-12, 2009 CL Cheju Isl, SOUTH KOREA SP Korean Minist Educ, Sci & Technol, Korean Assoc Radiat Protect, Innovat Technol Ctr Radiat Safety, Korean Nucl Soc DE CsI; scintillators; self-trapped exciton; transient absorption ID SELF-TRAPPED EXCITONS; ALKALI-HALIDE CRYSTALS; SPECTROSCOPY; LUMINESCENCE; IRRADIATION; CSI(TL) AB We report picosecond time-resolved measurements of optical absorption induced by a sub-picosecond pulse of light producing two-photon bandgap excitation of CsI and CsI:Tl at room temperature. The transient spectrum of undoped CsI reveals for the first time strong infrared absorption rising through the 0.8-eV limit of present measurements. We suggest that this infrared band is due to transitions of the bound electron in the off-center self-trapped exciton (STE), implying that there should be a band deeper in the infrared associated with the known on-center STE in CsI. Previously reported visible and ultraviolet transient absorption bands at 1.7, 2.5, and 3.4 eV are confirmed in these measurements as attributable to hole excitations of STE. In 0.3% thallium doped CsI, infrared absorption possibly attributable to STEs is observed for approximately the first 5 ps after excitation at room temperature, but decays quickly. The absorption bands of Tl(o) (electron trapped at Tl(+) activator) and of self-trapped holes are the main species seen at longer times after excitation, during which most of a scintillation pulse would occur. This is in accord with a recently published report of nanosecond induced absorption in CsI:Tl. C1 [Williams, Richard T.; Ucer, Kamil B.; Grim, Joel Quedar; Lipke, Kyle C.] Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA. [Trefilova, Larysa M.] Inst Scintillat Mat, UA-61001 Kharkov, Ukraine. [Moses, William W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Williams, RT (reprint author), Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA. EM williams@wfu.edu; ucerkb@wfu.edu; grimjq@wfu.edu; lipkkc7@wfu.edu; shpil@isc.kharkov.com; wwmoses@lbl.gov OI Larisa, Trefilova/0000-0001-8939-6491 NR 15 TC 18 Z9 18 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1187 EP 1192 DI 10.1109/TNS.2009.2033184 PN 2 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JU UT WOS:000278812200006 ER PT J AU Glodo, J van Loef, EV Cherepy, NJ Payne, SA Shah, KS AF Glodo, Jarek van Loef, Edgar V. Cherepy, Nerine J. Payne, Stephen A. Shah, Kanai S. TI Concentration Effects in Eu Doped SrI2 SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 10th International Conference on Inorganic Scintillators and their Applications CY JUN 08-12, 2009 CL Cheju Isl, SOUTH KOREA SP Korean Minist Educ, Sci & Technol, Korean Assoc Radiat Protect, Innovat Technol Ctr Radiat Safety, Korean Nucl Soc DE Gamma-ray spectroscopy; radiation trapping; scintillators; SrI2 AB This study reports on effects of dopant concentration and crystal size on some of the scintillation properties of SrI:Eu2+. For example, the emission shifts to longer wavelengths as the dopant concentration is increased. It also results in scintillation decays getting slower: a 620 ns decay time constant observed for a small 0.5% Eu sample increases to 1650 ns for a 10% Eu sample. Similar changes in the time constant values were also observed when the crystal size was being increased. It also appears that larger samples yielded somewhat less light. These effects are attributed to radiation trapping, in which the scintillation light is multiple time absorbed and consequently emitted by the dopant. C1 [Glodo, Jarek; van Loef, Edgar V.; Shah, Kanai S.] Radiat Monitoring Devices, Watertown, MA 02472 USA. [Cherepy, Nerine J.; Payne, Stephen A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Glodo, J (reprint author), Radiat Monitoring Devices, Watertown, MA 02472 USA. RI Cherepy, Nerine/F-6176-2013 OI Cherepy, Nerine/0000-0001-8561-923X NR 11 TC 55 Z9 55 U1 2 U2 8 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1228 EP 1232 DI 10.1109/TNS.2009.2036352 PN 2 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JU UT WOS:000278812200015 ER PT J AU Sako, H Allen, CK Ikeda, H Shen, GB AF Sako, Hiroyuki Allen, Christopher K. Ikeda, Hiroshi Shen, Guobao TI Unified Beam Control System of J-PARC Linac SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Accelerator control systems; high-level application framework; model-based beam control; unified beam control system AB A beam control system has been developed for the J-PARC linac to achieve strict design goals of beam performance and beam loss suppression in the high-intensity H- beams. An emerging concept of unified beam control has been adopted in the system, where a unified data source, standardized control units, a unified online model, and uniform high-level application frameworks have been designed and implemented. For precise beam controls, various beam tuning algorithms have been developed and tested. Design goals of beam performance, beam stability, and beam loss suppression have been achieved in the linac. C1 [Sako, Hiroyuki] Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki 3191195, Japan. [Allen, Christopher K.] Allen Oak Ridge Natl Lab, Accelerator Phys Grp, SNS, Oak Ridge, TN 37831 USA. [Ikeda, Hiroshi] Visible Informat Ctr Inc, Safety Anal Grp, Tokai, Ibaraki 3191195, Japan. [Shen, Guobao] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA. RP Sako, H (reprint author), Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki 3191195, Japan. EM hiroyuki.sako@j-parc.jp; allenck@ornl.gov; ikeda@vic.co.jp; shengb@bnl.gov RI shen, guobao/B-1811-2010 NR 36 TC 0 Z9 0 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 EI 1558-1578 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1528 EP 1535 DI 10.1109/TNS.2010.2046182 PN 3 PG 8 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300002 ER PT J AU Vernon, E Ackley, K De Geronimo, G Fried, J He, Z Herman, C Zhang, F AF Vernon, Emerson Ackley, Kim De Geronimo, Gianluigi Fried, Jack He, Zhong Herman, Cedric Zhang, Feng TI ASIC for High Rate 3D Position Sensitive Detectors SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE 3D; application specific integrated circuit (ASIC); cadmium-zinc-telluride (CZT); charge collection; gamma-ray camera; mercuric iodide (HgI(2)); solid state detectors; Thallium Bromide (TlBr); timing; x-ray spectroscopy ID GAMMA-RAY SPECTROMETERS; DEPTH-SENSING TECHNIQUE; ELECTRODES AB We report on the development of an application specific integrated circuit (ASIC) for 3D position sensitive detectors (3D PSD). The ASIC is designed to operate with pixelated wide bandgap sensors like Cadmium-Zinc-Telluride (CZT), Mercuric Iodide (HgI(2)) and Thallium Bromide (TlBr). It measures the amplitudes and timings associated with an ionizing event on 128 anodes, the anode grid, and the cathode. Each channel provides low-noise charge amplification, high-order shaping with peaking time adjustable from 250 ns to 12 mu s, gain adjustable to 20 mV/fC or 120 mV/fC (for a dynamic range of 3.2 MeV and 530 keV in CZT), amplitude discrimination with 5-bit trimming, and positive and negative peak and timing detections. The readout can be full or sparse, based on a flag and single-or multi-cycle token passing. All channels, triggered channels only, or triggered with neighbors can be read out thus increasing the rate capability of the system to more than 10 kcps. The ASIC dissipates 330 mW which corresponds to about 2.5 mW per channel. C1 [Vernon, Emerson; Ackley, Kim; De Geronimo, Gianluigi; Fried, Jack] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. [He, Zhong; Herman, Cedric; Zhang, Feng] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA. RP Vernon, E (reprint author), Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. EM evernon@bnl.gov; ackley@bnl.gov; degeronimo@bnl.gov; jfried@bnl.gov; hezhong@umich.edu; hermanc@umich.edu; zhangf@umich.edu FU Defense Threat Reduction Agency (DTRA) of the U.S. Department of Defense FX Manuscript received November 16, 2009; revised March 09, 2010; accepted March 21, 2010. Date of current version June 16, 2010. This work was supported by the Defense Threat Reduction Agency (DTRA) of the U.S. Department of Defense. NR 25 TC 14 Z9 14 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1536 EP 1542 DI 10.1109/TNS.2010.2047026 PN 3 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300003 ER PT J AU Wu, JY AF Wu, Jinyuan TI Several Key Issues on Implementing Delay Line Based TDCs Using FPGAs SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Fast timing; front end electronics; time to digital converters AB This paper discusses implementation of the Wave Union TDC, a novel scheme of FPGA TDC to improve time measurement precision using multiple measurements, along with several other topics in FPGA delay line based TDCs. FPGA specific issues such as considerations on the delay line choice in different FPGA families and encoding logic are first examined. Next, common problems for both FPGA TDCs and ASIC TDCs such as schemes of coarse time counter implementation, bin-by-bin calibration and noise issues due to single ended signals are discussed. Several resource/power saving design approaches for various processing stages are described in the document. C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Wu, JY (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM jywu168@fnal.gov FU U.S. Department of Energy [DE-AC02-07CH11359]; University of Chicago's Fermilab Strategic Collaborative Initiative FX Manuscript received December 03, 2009; revised February 12, 2010; accepted March 08, 2010. Date of current version June 16, 2010. This work was supported in part by Fermi Research Alliance, LLC under Contract DE-AC02-07CH11359 with the U.S. Department of Energy and University of Chicago's Fermilab Strategic Collaborative Initiative. NR 11 TC 38 Z9 42 U1 4 U2 26 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1543 EP 1548 DI 10.1109/TNS.2010.2045901 PN 3 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300004 ER PT J AU Moses, WW Janecek, M Spurrier, MA Szupryczynski, P Choong, WS Melcher, CL Andreaco, M AF Moses, W. W. Janecek, M. Spurrier, M. A. Szupryczynski, P. Choong, W. -S. Melcher, C. L. Andreaco, M. TI Optimization of a LSO-Based Detector Module for Time-of-Flight PET SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE LSO; time-of-flight PET; timing resolution ID SCINTILLATION PROPERTIES; PHOTOMULTIPLIER SYSTEMS; CE; PERFORMANCE; CRYSTALS; SCANNER AB We have explored methods for optimizing the timing resolution of an LSO-based detector module for a single-ring, "demonstration" time-of-flight PET camera. By maximizing the area that couples the scintillator to the PMT and minimizing the average path length that the scintillation photons travel, a single detector timing resolution of 218 ps fwhm is measured, which is considerably better than the similar to 385 fwhm obtained by commercial LSO or LYSO TOF detector modules. We explored different surface treatments (saw-cut, mechanically polished, and chemically etched) and reflector materials (Teflon tape, ESR, Lu-mirror, Melinex, white epoxy, and white paint), and found that for our geometry, a chemically etched surface had 5% better timing resolution than the saw-cut or mechanically polished surfaces, and while there was little dependence on the timing resolution between the various reflectors, white paint and white epoxy were a few percent better. Adding co-dopants to LSO shortened the decay time from 40 ns to similar to 30 but maintained the same or higher total light output. This increased the initial photoelectron rate and so improved the timing resolution by 15%. Using photomultiplier tubes with higher quantum efficiency (blue sensitivity index of 13.5 rather than 12) improved the timing resolution by an additional 5%. By choosing the optimum surface treatment (chemically etched), reflector (white paint), LSO composition (co-doped), and PMT (13.5 blue sensitivity index), the coincidence timing resolution of our detector module was reduced from 309 ps to 220 ps fwhm. C1 [Moses, W. W.; Janecek, M.; Choong, W. -S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Spurrier, M. A.; Szupryczynski, P.; Melcher, C. L.] Univ Tennessee, Knoxville, TN 37996 USA. [Szupryczynski, P.; Andreaco, M.] Siemens Med Solut, Knoxville, TN 37932 USA. RP Moses, WW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM wwmoses@lbl.gov OI Melcher, Charles/0000-0002-4586-4764; Koschan, Merry/0000-0002-8686-8657 FU Office of Science, Office of Biological and Environmental Research, Medical Science Division of the U.S. Department of Energy under Contract [DE-AC02-05CH11231]; National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering [R01-EB006085, R21-EB007081] FX Manuscript received October 08, 2009; revised January 08, 2010; accepted March 21, 2010. Date of current version June 16, 2010. This work was supported in part by the Director, Office of Science, Office of Biological and Environmental Research, Medical Science Division of the U.S. Department of Energy under Contract DE-AC02-05CH11231, and in part by the National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering under Grants R01-EB006085 and R21-EB007081. NR 25 TC 22 Z9 23 U1 0 U2 9 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1570 EP 1576 DI 10.1109/TNS.2010.2047266 PN 3 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300008 PM 21738262 ER PT J AU Rempe, JL Condie, KG Knudson, DL Snead, LL AF Rempe, Joy L. Condie, Keith G. Knudson, Darrell L. Snead, Lance L. TI Comparison Measurements of Silicon Carbide Temperature Monitors SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Instrumentation; silicon carbide devices; temperature measurement ID NEUTRON-IRRADIATION; ANNEALING BEHAVIOR AB As part of a process initiated through the Advanced Test Reactor (ATR) National Scientific User Facility (NSUF) program to make Silicon Carbide (SiC) temperature monitors available for experiments, a capability was developed at the Idaho National Laboratory (INL) to complete post-irradiation evaluations of these monitors. INL selected the resistance measurement approach for detecting peak irradiation temperature from SiC temperature monitors. To demonstrate this new capability, comparison measurements were completed by INL and Oak Ridge National Laboratory (ORNL) on identical samples subjected to identical irradiation conditions. Results reported in this paper indicate that the resistance measurement approach yields similar peak irradiation temperatures if appropriate equipment is used and appropriate procedures are followed. C1 [Rempe, Joy L.; Condie, Keith G.; Knudson, Darrell L.] Idaho Natl Lab, Idaho Falls, ID 83402 USA. [Snead, Lance L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Rempe, JL (reprint author), Idaho Natl Lab, Idaho Falls, ID 83402 USA. EM Joy.Rempe@inl.gov; llsnead@ornl.gov OI Rempe, Joy/0000-0001-5527-3549 FU U.S. Department of Energy, Office of Nuclear Energy, Science, and Technology [DE AC07 05ID14517] FX Manuscript received February 12, 2010; revised March 11, 2010; accepted March 14, 2010. Date of current version June 16, 2010. This work was supported by the U.S. Department of Energy, Office of Nuclear Energy, Science, and Technology under DOE-NE Idaho Operations Office Contract DE AC07 05ID14517. NR 14 TC 5 Z9 5 U1 0 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1589 EP 1594 DI 10.1109/TNS.2010.2046333 PN 3 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300010 ER PT J AU De Geronimo, G Rehak, P Ackley, K Carini, G Chen, W Fried, J Keister, J Li, SR Li, Z Pinelli, DA Siddons, DP Vernon, E Gaskin, JA Ramsey, BD Tyson, TA AF De Geronimo, Gianluigi Rehak, Pavel Ackley, Kim Carini, Gabriella Chen, Wei Fried, Jack Keister, Jeffrey Li, Shaorui Li, Zheng Pinelli, Donald A. Siddons, D. Peter Vernon, Emerson Gaskin, Jessica A. Ramsey, Brian D. Tyson, Trevor A. TI ASIC for SDD-Based X-Ray Spectrometers SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE ASIC; charge sharing; high rate; LVDS; PUR; SDD ID SILICON DRIFT DETECTORS; CHARGE-SENSITIVE PREAMPLIFIER; CMOS PEAK DETECT; CONTINUOUS RESET; READOUT CIRCUIT; HOLD CIRCUITS; PULSE; JFET; CONFIGURATION; SPECTROSCOPY AB We present an application-specific integrated circuit (ASIC) for high-resolution x-ray spectrometers (XRS). The ASIC reads out signals from pixelated silicon drift detectors (SDDs). The pixel does not have an integrated field effect transistor (FET); rather, readout is accomplished by wire-bonding the anodes to the inputs of the ASIC. The ASIC dissipates 32 mW, and offers 16 channels of low-noise charge amplification, high-order shaping with baseline stabilization, discrimination, a novel pile-up rejector, and peak detection with an analog memory. The readout is sparse and based on custom low-power tristatable low-voltage differential signaling (LPT-LVDS). A unit of 64 SDD pixels, read out by four ASICs, covers an area of 12.8 cm(2) and dissipates with the sensor biased about 15 m W/cm(2). As a tile-based system, the 64-pixel units cover a large detection area. Our preliminary measurements at -44 degrees C show a FWHM of 145 eV at the 5.9 keV peak of a (55)Fe source, and less than 80 eV on a test-pulse line at 200 eV. C1 [De Geronimo, Gianluigi; Rehak, Pavel; Ackley, Kim; Carini, Gabriella; Chen, Wei; Fried, Jack; Keister, Jeffrey; Li, Shaorui; Li, Zheng; Pinelli, Donald A.; Siddons, D. Peter; Vernon, Emerson] Brookhaven Natl Lab, Upton, NY 11973 USA. [Gaskin, Jessica A.; Ramsey, Brian D.] George C Marshall Space Flight Ctr, Huntsville, AL 35805 USA. [Tyson, Trevor A.] New Jersey Inst Technol, Newark, NJ 07102 USA. RP De Geronimo, G (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM degeronimo@bnl.gov; rehak@bnl.gov; ackley@bnl.gov; carini@bnl.gov; weichen@bnl.gov; jfried@bnl.gov; jkeister@bnl.gov; shaoruili@bnl.gov; zhengl@bnl.gov; pinelli@bnl.gov; siddons@bnl.gov; evernon@bnl.gov; jessica.gaskin@nasa.gov; brian.ramsey@nasa.gov; Tyson@adm.njit.edu NR 43 TC 10 Z9 10 U1 2 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1654 EP 1663 DI 10.1109/TNS.2010.2044809 PN 3 PG 10 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300019 ER PT J AU Neal, JS Boatner, LA Bell, ZW McConchie, SM Wisniewski, D Ramey, JO Kolopus, JA Chakoumakos, BC Wisniewska, M Custelcean, R AF Neal, J. S. Boatner, L. A. Bell, Z. W. McConchie, S. M. Wisniewski, D. Ramey, J. O. Kolopus, J. A. Chakoumakos, B. C. Wisniewska, M. Custelcean, R. TI A New Scintillator for Fast Neutron Detection: Single-Crystal CeCl3(CH3OH)(4) SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Fast neutron; metal organic; rare earth; scintillator AB A new scintillator material for the detection of fast neutrons that consists of a methanol adduct of cerium trichloride with the composition CeCl3(CH3OH)(4) has been characterized using 14.1 MeV neutrons from a deuterium-tritium neutron generator and fast neutrons from a bare instrumented Cf-252 source. The timing resolution of the scintillator for fast neutrons was found to be similar to 1ns. Neutron interactions in the CeCl3(CH3OH)(4) composition were simulated using the MCNP-PoliMi code. These simulations indicate that proton recoils account for most of the deposited energy in CeCl3(CH3OH)(4). The crystalline molecular adduct CeCl3(CH3OH)(4) represents a rare-earth metal-organic scintillator that can be applied to both fast neutron and gamma-ray detection. C1 [Neal, J. S.] Oak Ridge Natl Lab, Ctr Radiat Detect Mat & Syst, Oak Ridge, TN 37831 USA. [Wisniewski, D.] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland. [Wisniewska, M.] Environm Coll, PL-85064 Bydgoszcz, Poland. RP Neal, JS (reprint author), Oak Ridge Natl Lab, Ctr Radiat Detect Mat & Syst, Oak Ridge, TN 37831 USA. EM nealjs1@ornl.gov RI Custelcean, Radu/C-1037-2009; Chakoumakos, Bryan/A-5601-2016; Boatner, Lynn/I-6428-2013; Neal, John/R-8203-2016; OI Custelcean, Radu/0000-0002-0727-7972; Chakoumakos, Bryan/0000-0002-7870-6543; Boatner, Lynn/0000-0002-0235-7594; Neal, John/0000-0001-8337-5235; Bell, Zane/0000-0003-1115-8674 FU NNSA Office of Nonproliferation Research and Engineering [NA-22]; U.S. Department of Energy [DE-AC05-00OR22725] FX Manuscript received October 15, 2009; revised March 02, 2010; accepted March 14, 2010. Date of current version June 16, 2010. This work was supported by the NNSA Office of Nonproliferation Research and Engineering (NA-22). Oak Ridge National Laboratory is operated by UT-Battelle, LLC, for the U.S. Department of Energy under Contract DE-AC05-00OR22725. NR 5 TC 7 Z9 7 U1 0 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1692 EP 1696 DI 10.1109/TNS.2010.2046911 PN 3 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300023 ER PT J AU Gundiah, G Bourret-Courchesne, E Bizarri, G Hanrahan, SM Chaudhry, A Canning, A Moses, WW Derenzo, SE AF Gundiah, Gautam Bourret-Courchesne, Edith Bizarri, Gregory Hanrahan, Stephen M. Chaudhry, Anurag Canning, Andrew Moses, William W. Derenzo, Stephen E. TI Scintillation Properties of Eu2+-Activated Barium Fluoroiodide SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE BaFI; barium fluoroiodide; europium; gamma-ray detection; scintillators ID ENERGY-RESOLUTION SCINTILLATOR; INORGANIC SCINTILLATORS; LUMINESCENCE PROPERTIES; CE; LACL3; YIELD; LABR3 AB The scintillation properties of powders and single-crystals of BaFI doped with Eu2+ are presented. Single crystals were grown by the vertical Bridgman technique. Under optical and X-ray excitation, the samples exhibit a narrow Eu2+ 5d - 4f transition emission centered at 405 nm. The scintillation light output is estimated to be 55 000 +/- 5 000 photons/MeV at 662 keV with 85% of the light decaying within 600 ns. An energy resolution of 8.5% full width at half maximum (FWHM) has been achieved using this scintillator for 662 keV excitation (Cs-137 source) at room temperature. C1 [Gundiah, Gautam; Bizarri, Gregory; Hanrahan, Stephen M.; Chaudhry, Anurag; Moses, William W.; Derenzo, Stephen E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Bourret-Courchesne, Edith] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Chaudhry, Anurag] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA. [Canning, Andrew] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Gundiah, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM GGundiah@lbl.gov; ED-Bourret@lbl.gov; GABizarri@lbl.gov; SMHanrahan@lbl.gov; AChaudhry@lbl.gov; ACanning@lbl.gov; WWMoses@lbl.gov; SEDerenzo@lbl.gov FU U.S. Department of Homeland Security/DNDO; U.S. Department of Energy/NNSA/NA22 [AC02-05CH11231] FX Manuscript received November 18, 2009; revised February 09, 2010; accepted March 07, 2010. Date of current version June 16, 2010. This work was supported by the U.S. Department of Homeland Security/DNDO and the U.S. Department of Energy/NNSA/NA22, and carried out at Lawrence Berkeley National Laboratory under Contract AC02-05CH11231. NR 23 TC 11 Z9 11 U1 0 U2 13 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1702 EP 1705 DI 10.1109/TNS.2010.2045513 PN 3 PG 4 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300025 ER PT J AU De Lurgio, PM Drake, GR Kreps, AS Jennings, G Weizeorick, JT Molitsky, MJ Naday, I Hessler, JP AF De Lurgio, Patrick M. Drake, Gary R. Kreps, Andrew S. Jennings, Guy Weizeorick, John T. Molitsky, Michael J. Naday, Istvan (Steve) Hessler, Jan P. TI A High-Speed One-Dimensional Detector for Time-Resolved Small-Angle X-Ray Scattering: Design and Characterization SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Front-end electronics; silicon-strip detector; small-angle x-ray scattering; time-resolved small-angle x-ray scattering; x-ray detector ID RESPONSE FUNCTIONS; SPECTROSCOPY; RADIATION AB A high-speed one-dimensional detector for time-resolved small-angle x-ray scattering has been designed and built for experiments at the Advanced Photon Source of Argonne National Laboratory. This detector is made from a 500-mu m thick by 150-mm diameter ultra-high-purity n-type silicon wafer. The electrodes, which are a series of concentric rings that are deposited in the wafer, integrate the scattered x-rays over the azimuthal angle and, thereby, produce a one-dimensional detector. This design yields 128 rings, which allows parallel processing of the signal from each ring. The readout electronics consist of transimpedance front-end amplifiers, one for each ring, followed by active pulse-shaping filters. The amplifier signals are digitized using 12-bit analog-to-digital converters, one per ring, which operate at 20 MHz. The frame rate of the system is 271 kHz. Up to 2(20) - 1 scattering profiles may be stored on a random access memory chip and transferred to a data file at a rate of 16 x 10(3) profiles/sec. For X-ray energies between 3.5 and 13.2 keV the efficiency exceeds 80%. The resolving time of the electronics is 300 ns, which is sufficient to isolate electronically a single pulse of scattered x-rays when the synchrotron is operated in a hybrid or asymmetric fill pattern. Therefore, laser-pump/x-ray-probe experiments can be performed without a mechanical shutter. Examples of time-resolved speckle and the kinetics of the formation of sodium chloride particles are presented. This detector is capable of acquiring small-angle x-ray scattering profiles over multiple time scales, which are needed to characterize many chemical, physical, and biological processes. In addition, this detector may be tested and calibrated before experimental runs, without access to an intense beam of x-rays, with alpha particles from a radioactive source such as (241)Am. C1 [De Lurgio, Patrick M.; Drake, Gary R.; Kreps, Andrew S.] Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA. [Jennings, Guy; Weizeorick, John T.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Molitsky, Michael J.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Naday, Istvan (Steve)] Argonne Natl Lab, Elect Support Div, Argonne, IL 60439 USA. [Hessler, Jan P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP De Lurgio, PM (reprint author), Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA. EM delurgio@anl.gov; drake@anl.gov; akreps@anl.gov; jennings@anl.gov; weizeor@aps.anl.gov; MJMolitsky@anl.gov; steve.naday@dexelaimaging.com; hessler@anl.gov FU U.S. Department of Energy, Office of Science, Division of Chemical Sciences, Geosciences, and Biosciences; BES-DOE [DE-AC02-06CH11357] FX This work was performed under the auspices of the U.S. Department of Energy, Office of Science, Division of Chemical Sciences, Geosciences, and Biosciences and use of the Advanced Photon Source was supported by BES-DOE, all under Contract DE-AC02-06CH11357. NR 39 TC 3 Z9 3 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD JUN PY 2010 VL 57 IS 3 BP 1706 EP 1715 DI 10.1109/TNS.2010.2045233 PN 3 PG 10 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 611JV UT WOS:000278812300026 ER PT J AU Jing, CG Gai, W Power, JG Konecny, R Liu, WM Gold, SH Kinkead, AK Tantawi, SG Dolgashev, V Kanareykin, A AF Jing, Chunguang Gai, Wei Power, John G. Konecny, Richard Liu, Wanming Gold, Steven H. Kinkead, Allen K. Tantawi, Sami G. Dolgashev, Valery Kanareykin, Alexei TI Progress Toward Externally Powered X-Band Dielectric-Loaded Accelerating Structures SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article DE Dielectric breakdown; dielectric-loaded accelerator; high-power RF; multipactor AB We summarize recent progress in a program to develop externally powered dielectric-loaded accelerating (DLA) structures that can sustain high accelerating gradients. High-power RF tests of earlier structures showed strong multipactor loading. In addition, arcing at dielectric joints between the uniform DLA structure and matching sections at either end limited the achievable gradient. In this paper, we study the onset of multipactor in a DLA structure. We also study the effect of thin-film TiN coatings applied by atomic layer deposition and the effect of a reduction in the inner diameter of the structure. Test results of these structures show significant decreases in multipactor loading. We also test new structure designs that eliminate separate dielectric matching sections and, thus, the requirement for dielectric joints, including a DLA structure using a coaxial coupler and a clamped DLA structure. The clamped structure demonstrated a significantly improved gradient without breakdown. C1 [Jing, Chunguang; Kanareykin, Alexei] Euclid TechLabs LLC, Solon, OH 44139 USA. [Jing, Chunguang; Gai, Wei; Power, John G.; Konecny, Richard; Liu, Wanming] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Gold, Steven H.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Kinkead, Allen K.] Icarus Res Inc, Bethesda, MD 20824 USA. [Tantawi, Sami G.; Dolgashev, Valery] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. RP Jing, CG (reprint author), Euclid TechLabs LLC, Solon, OH 44139 USA. EM jingchg@hep.anl.gov; wg@hep.anl.gov; jp@hep.anl.gov; rsk@hep.anl.gov; wmliu@hep.anl.gov; steven.gold@nrl.navy.mil; allen.kinkead@nrl.navy.mil; tantawi@slac.stanford.edu; dolgash@slac.stanford.edu; alexkan@euclidtechlabs.com FU U.S. Department of Energy; High Energy Physics Division; Office of Naval Research; Small Business Innovation Research Program FX Manuscript received September 21, 2009; revised October 29, 2009; accepted October 30, 2009. Date of publication January 15, 2010; date of current version June 9, 2010. This work was supported in part by the U.S. Department of Energy, by the Small Business Innovation Research Program, by the High Energy Physics Division, and by the Office of Naval Research. NR 12 TC 12 Z9 13 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0093-3813 J9 IEEE T PLASMA SCI JI IEEE Trans. Plasma Sci. PD JUN PY 2010 VL 38 IS 6 SI SI BP 1354 EP 1360 DI 10.1109/TPS.2009.2036921 PN 1 PG 7 WC Physics, Fluids & Plasmas SC Physics GA 649JJ UT WOS:000281764600028 ER PT J AU Lightner, EM Widergren, SE AF Lightner, Eric M. Widergren, Steven E. TI An Orderly Transition to a Transformed Electricity System SO IEEE TRANSACTIONS ON SMART GRID LA English DT Article DE Adaptive systems; automation; cooperative systems; distributed control; energy management; energy resources; information technology; power distribution; power system economics; research and development AB In September 2001, the U.S. Department of Energy (DOE) sponsored a workshop to develop a roadmap on communication and control technologies for distributed energy resources. From this and subsequent activities with industry, academia, and other research institutions, the concepts and vision of an interactive and adaptable electricity system emerged; a vision that is now commonly referred to as smart grid. Supported by significant federal investment announced in 2009, the DOE, its national laboratories, and industry partners are now making significant strides in smart grid deployments, demonstrations, and research. An imperative underlying these activities is that they contribute to ensuring the steps taken in transitioning toward a smart grid retain a system with dependable performance to the economy and society it services. This paper summarizes the status of current smart grid related efforts, explains smart grid priorities, and describes the direction of research and development activities supported by the DOE. C1 [Lightner, Eric M.] Off Elect Delivery & Energy Reliabil, US Dept Energy, Washington, DC 20585 USA. [Widergren, Steven E.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Lightner, EM (reprint author), Off Elect Delivery & Energy Reliabil, US Dept Energy, Washington, DC 20585 USA. EM eric.lightner@hq.doe.gov; steve.widergren@pnl.gov FU Pacific Northwest National Laboratory [DE-AC65-76RLO1830] FX Manuscript received January 22, 2010; revised January 31, 2010. Date of publication April 22, 2010; date of current version May 21, 2010. This work is supported in part by the Pacific Northwest National Laboratory operated for the U.S. Department of Energy by Battelle under Contract DE-AC65-76RLO1830. Paper no. TSG-00010-2010. NR 14 TC 43 Z9 46 U1 1 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1949-3053 J9 IEEE T SMART GRID JI IEEE Trans. Smart Grid PD JUN PY 2010 VL 1 IS 1 BP 3 EP 10 DI 10.1109/TSG.2010.2045013 PG 8 WC Engineering, Electrical & Electronic SC Engineering GA V29ZU UT WOS:000208787100002 ER PT J AU Mitri, FG AF Mitri, Farid G. TI Equivalence of Expressions for the Acoustic Scattering of a Progressive High-Order Bessel Beam by an Elastic Sphere (vol 56, pg 1100, 2009) SO IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL LA English DT Correction C1 [Mitri, Farid G.] Mayo Clin, Coll Med, Dept Physiol & Biomed Engn, Ultrasound Res Lab, Rochester, MN USA. RP Mitri, FG (reprint author), Los Alamos Natl Lab, Acoust & Sensors Technol Team, MPA 11,MS D429, Los Alamos, NM 87545 USA. EM mitri@ieee.org NR 1 TC 0 Z9 0 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0885-3010 J9 IEEE T ULTRASON FERR JI IEEE Trans. Ultrason. Ferroelectr. Freq. Control PD JUN PY 2010 VL 57 IS 6 BP 1483 EP 1483 DI 10.1109/TUFFC.2010.1568 PG 1 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA 657DI UT WOS:000282392500024 ER PT J AU Landis, DA Werling, BP AF Landis, Douglas A. Werling, Benjamin P. TI Arthropods and biofuel production systems in North America SO INSECT SCIENCE LA English DT Review DE biodiversity; land use change; pest management ID REED CANARY-GRASS; GROUND BEETLES COLEOPTERA; CARBON-NEGATIVE BIOFUELS; SHORT-ROTATION COPPICE; HABITAT USE PATTERNS; BARLEY YELLOW DWARF; WEED SEED PREDATION; EUROPEAN CORN-BORER; CEREAL LEAF BEETLE; PHALARIS-ARUNDINACEA AB Biomass harvest may eventually be conducted on over 100 000 000 ha of US crop and forest lands to meet federally-mandated targets for renewable biofuels. Such large-scale land use changes could profoundly impact working landscapes and the arthropod communities that inhabit them. We review the literature on dedicated biofuel crops and biomass harvest from forests to look for commonalities in arthropod community responses. With expanded biofuel production, existing arthropod pests of biofuel crops will likely become more important and new pests will emerge. Beneficial arthropods will also be influenced by biofuel crop habitats, potentially altering the distribution of pollination and pest control services to the surrounding landscape. Production of biofuel crops including initial crop selection, genetic improvement, agronomic practices, and harvest regimes will also influence arthropod communities. In turn, arthropods will impact the productivity and species composition of biomass production systems. Some of these processes have the potential to cause landscape-level changes in arthropod community dynamics and insect-vectored plant diseases. Finally, changes in arthropod populations and their spatiotemporal distribution in the landscape will have impacts on consumers of insects at higher trophic levels, potentially influencing their population and community dynamics and producing feedbacks to arthropod communities. Given that dedicated biofuel crops and intensified biomass harvest from forests are still relatively uncommon in North America, as they increase, we anticipate 'predictably unpredictable' shifts in arthropod communities and the ecosystem services and functions they support. We suggest that research on arthropod dynamics within biofuel crops, their spillover into adjacent habitats, and implications for the sustainability of working landscapes are critical topics for both basic and applied investigations. C1 [Landis, Douglas A.] Michigan State Univ, Dept Entomol, Ctr Integrated Plant Syst 204, E Lansing, MI 48824 USA. Michigan State Univ, Great Lakes Bioenergy Res Ctr, Ctr Integrated Plant Syst 204, E Lansing, MI 48824 USA. RP Landis, DA (reprint author), Michigan State Univ, Dept Entomol, Ctr Integrated Plant Syst 204, E Lansing, MI 48824 USA. EM landisd@msu.edu FU DOE Great Lakes Bioenergy Research Center; US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-FC02-07ER64494]; Board of Regents of the University of Wisconsin System; US Department of Energy; Michigan Agricultural Experiment Station FX Thanks to Lauren Bailey who assisted with literature research and Bruce Robertson for helpful discussions about the influence of arthropods on avian populations. Mary Gardiner provided useful comments on earlier drafts of the manuscript. This work was funded in part by the DOE Great Lakes Bioenergy Research Center (www.greatlakesbioenergy.org), which is supported by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, through Cooperative Agreement DE-FC02-07ER64494 between The Board of Regents of the University of Wisconsin System and the US Department of Energy. Additional support was provided by the Michigan Agricultural Experiment Station. NR 125 TC 38 Z9 41 U1 2 U2 32 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1672-9609 EI 1744-7917 J9 INSECT SCI JI Insect Sci. PD JUN PY 2010 VL 17 IS 3 BP 220 EP 236 DI 10.1111/j.1744-7917.2009.01310.x PG 17 WC Entomology SC Entomology GA 605JZ UT WOS:000278345200006 ER PT J AU Wereszczak, AA Kirkland, TP Ragan, ME Strong, KT Lin, HT Patel, P AF Wereszczak, Andrew A. Kirkland, Timothy P. Ragan, Meredith E. Strong, Kevin T., Jr. Lin, Hua-Tay Patel, Parimal TI Size Scaling of Tensile Failure Stress in a Float Soda-Lime-Silicate Glass SO INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE LA English DT Article AB The (tensile) strength-size scaling of a float soda-lime-silicate glass was studied using biaxial flexure and Hertzian ring crack initiation testing. The examined Weibull effective areas spanned similar to 0.4-48,000 mm(2). Both the air and tin sides were tested. The air side was stronger than the tin side as others have observed; however, the differences in their characteristic strengths decreased with a decreasing effective area, and their strengths converged for effective areas smaller than similar to 100 mm(2). The failure stress at the smallest effective area examined for the tin side was similar to 500% greater than that at the largest effective area, while that difference was similar to 250% for the air side. A Weibull modulus change at similar to 100 mm2 suggests different strength-limiting flaw types were dominant below and above this effective area. These results reinforce the importance of the interpretation and use of the tensile strength of glass in context to how much of its area is being subjected to tensile stress. C1 [Wereszczak, Andrew A.; Kirkland, Timothy P.; Ragan, Meredith E.; Strong, Kevin T., Jr.; Lin, Hua-Tay] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Patel, Parimal] USA, Res Lab, Ceram & Transparent Mat Branch, Aberdeen Proving Ground, MD 21005 USA. RP Wereszczak, AA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM wereszczakaa@ornl.gov RI Wereszczak, Andrew/I-7310-2016 OI Wereszczak, Andrew/0000-0002-8344-092X FU United States Government [DE-AC05-00OR22725]; United States Department of Energy FX This study was supported by a contractor of the United States Government under contract DE-AC05-00OR22725 with the United States Department of Energy. The United States Government retains, and the publisher, by accepting this submission 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 submission, or allow others to do so, for United States Government purposes. NR 26 TC 10 Z9 10 U1 0 U2 3 PU WILEY PERIODICALS, INC PI SAN FRANCISCO PA ONE MONTGOMERY ST, SUITE 1200, SAN FRANCISCO, CA 94104 USA SN 2041-1286 J9 INT J APPL GLASS SCI JI Int. J. Appl. Glass Sci. PD JUN PY 2010 VL 1 IS 2 BP 143 EP 150 DI 10.1111/j.2041-1294.2010.00014.x PG 8 WC Materials Science, Ceramics SC Materials Science GA V26BI UT WOS:000208520700002 ER PT J AU Paun, M Naksinehaboon, N Nassar, R Leangsuksun, C Scott, SL Taerat, N AF Paun, Mihaela Naksinehaboon, Nichamon Nassar, Raja Leangsuksun, Chokchai Scott, Stephen L. Taerat, Narate TI INCREMENTAL CHECKPOINT SCHEMES FOR WEIBULL FAILURE DISTRIBUTION SO INTERNATIONAL JOURNAL OF FOUNDATIONS OF COMPUTER SCIENCE LA English DT Article DE Incremental checkpoint; Weibull; failure rate ID INTERVAL AB Incremental checkpoint mechanism was introduced to reduce high checkpoint overhead of regular (full) checkpointing, especially in high-performance computing systems. To gain an extra advantage from the incremental checkpoint technique, we propose an optimal checkpoint frequency function that globally minimizes the expected wasted time of the incremental checkpoint mechanism. Also, the re-computing time coefficient used to approximate the re-computing time is derived. Moreover, to reduce the complexity in the recovery state, full checkpoints are performed from time to time. In this paper we present an approach to evaluate the appropriate constant number of incremental check-points between two consecutive full checkpoints. Although the number of incremental checkpoints is constant, the checkpoint interval derived from the proposed model varies depending on the failure rate of the system. The checkpoint time is illustrated in the case of a Weibull distribution and can be easily simplified to the exponential case. C1 [Paun, Mihaela; Naksinehaboon, Nichamon; Nassar, Raja; Leangsuksun, Chokchai; Taerat, Narate] Louisiana Tech Univ, Coll Engn & Sci, Ruston, LA 71272 USA. [Paun, Mihaela] Spiru Haret Univ, Fac Finance, Bucharest, Romania. [Scott, Stephen L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Paun, M (reprint author), Louisiana Tech Univ, Coll Engn & Sci, Ruston, LA 71272 USA. EM mpaun@latech.edu; nna003@latech.edu; nassar@latech.edu; box@latech.edu; scottsl@ornl.com; nta008@latech.edu RI Paun, Mihaela/C-3539-2011 OI Paun, Mihaela/0000-0002-3342-9140 NR 9 TC 5 Z9 5 U1 0 U2 2 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0129-0541 J9 INT J FOUND COMPUT S JI Int. J. Found. Comput. Sci. PD JUN PY 2010 VL 21 IS 3 BP 329 EP 344 DI 10.1142/S0129054110007283 PG 16 WC Computer Science, Theory & Methods SC Computer Science GA 607JL UT WOS:000278498500006 ER PT J AU Li, XY Huang, H Meakin, P AF Li, Xiaoyi Huang, Hai Meakin, Paul TI A three-dimensional level set simulation of coupled reactive transport and precipitation/dissolution SO INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER LA English DT Article DE Level set; Precipitation; Dissolution; Reactive transport modeling; Porous media ID INCOMPRESSIBLE 2-PHASE FLOWS; LATTICE BOLTZMANN METHOD; POROUS-MEDIA; NUMERICAL-SIMULATION; DENDRITIC SOLIDIFICATION; DENSITY RATIO; CO2 DISPOSAL; DISSOLUTION; MODEL; DEPOSITION AB A level set method for capturing interface evolution has been integrated into the standard grid-based approach to simulate flow and reactive transport in complex porous media geometries. The numerical methods are described in detail and the simulations were performed in three-dimensions. Validations by comparing with one-dimensional analytical solution and by performing a grid-refinement study were conducted. Precipitation and/or dissolution in a three-dimensional pore throat with varying throat aperture were simulated. The three-dimensional effects of flow conditions and reaction rates were explored quantitatively. The permeability-porosity relationship calculated from simulations was compared with empirical Carman-Kozeny constitutive models to illustrate their limitations. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Li, Xiaoyi] United Technol Res Ctr, E Hartford, CT 06108 USA. [Huang, Hai; Meakin, Paul] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Meakin, Paul] Univ Oslo, N-0316 Oslo, Norway. [Meakin, Paul] Inst Energy Technol, Multiphase Flow Assurance Innovat Ctr, N-2007 Kjeller, Norway. RP Li, XY (reprint author), United Technol Res Ctr, 411 Silver Lane,MS 129-29, E Hartford, CT 06108 USA. EM xiaoyi.li@utrc.utc.com FU laboratory directed research and development (LDRD) [C.B.10.00.GL.03] FX This work is supported by the laboratory directed research and development (LDRD) project C.B.10.00.GL.03 at Idaho National Laboratory (INL), which is operated by the Battelle Energy Alliance for the U.S. Department of Energy. NR 41 TC 10 Z9 10 U1 1 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0017-9310 J9 INT J HEAT MASS TRAN JI Int. J. Heat Mass Transf. PD JUN PY 2010 VL 53 IS 13-14 BP 2908 EP 2923 DI 10.1016/j.ijheatmasstransfer.2010.01.044 PG 16 WC Thermodynamics; Engineering, Mechanical; Mechanics SC Thermodynamics; Engineering; Mechanics GA 597WM UT WOS:000277793100036 ER PT J AU Robinson, DB Langham, ME Fares, SJ Ong, MD Jacobs, BW Clift, WM Murton, JK Hjelm, RP Kent, MS AF Robinson, David B. Langham, Mary E. Fares, Stephen J. Ong, Markus D. Jacobs, Benjamin W. Clift, W. Miles Murton, Jaclyn K. Hjelm, Rex P. Kent, Michael S. TI Thermally stable nanoporous palladium alloy powders by hydrogen reduction in surfactant templates SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Nanoporous; Mesoporous; Palladium; Rhodium; Tritium ID LYOTROPIC LIQUID-CRYSTALS; ELECTROLESS DEPOSITION; FILMS; PD; NANOPARTICLES; SOLUBILITY; RHODIUM; METALS; THERMODYNAMICS; MESOSTRUCTURE AB Nanometer-scale pores in metals used for hydrogen storage are expected to facilitate mass transport in the materials - in particular, the release of helium decay products when tritium is stored. Scalable methods for production of bulk powders of nanoporous metals typically use chemical reducing agents that can leave impurities in the product. Hydrogen gas can be used as the reducing agent in such procedures. This not only improves purity, but also expands the range of accessible pore and particle sizes and particle compositions. Powders of nanoporous palladium and its alloys with rhodium are synthesized by chemical reduction of chloride complexes by hydrogen in a concentrated nonionic aqueous surfactant at room temperature. Particle diameters are typically several micrometers and each particle is perforated by 2-3 nm pores, as determined by electron microscopy and nitrogen porosimetry. Alloys show major improvement in thermal stability and pore regularity compared to pure palladium. In addition to facilitating heavier isotope storage, the high surface areas of these materials may allow development of metal hydride batteries with high power density. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [Robinson, David B.; Langham, Mary E.; Fares, Stephen J.; Ong, Markus D.; Jacobs, Benjamin W.; Clift, W. Miles] Sandia Natl Labs, Livermore, CA 94551 USA. [Murton, Jaclyn K.; Kent, Michael S.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Hjelm, Rex P.] Los Alamos Natl Lab, Lujan Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Robinson, DB (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94551 USA. EM drobins@sandia.gov RI Lujan Center, LANL/G-4896-2012 FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Sandia's Laboratory; DOE Office of Basic Energy Sciences; Los Alamos National Laboratory under DOE [DE-AC52-06NA25396] 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. Neutron scattering work was funded by Sandia's Laboratory-Directed Research and Development program. The Lujan Neutron Scattering Center at LANSCE is funded by the DOE Office of Basic Energy Sciences and Los Alamos National Laboratory under DOE Contract DE-AC52-06NA25396. NR 49 TC 12 Z9 12 U1 1 U2 25 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD JUN PY 2010 VL 35 IS 11 SI SI BP 5423 EP 5433 DI 10.1016/j.ijhydene.2010.03.031 PG 11 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 613GR UT WOS:000278967900030 ER PT J AU Park, MJ Jo, JH Park, D Lee, DS Park, JM AF Park, Mi Jung Jo, Ji Hye Park, Donghee Lee, Dae Sung Park, Jong Moon TI Comprehensive study on a two-stage anaerobic digestion process for the sequential production of hydrogen and methane from cost-effective molasses SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Anaerobic digestion; Two-stage process; Hydrogen; Methane; Molasses ID CLOSTRIDIUM-TYROBUTYRICUM JM1; BIOHYDROGEN PRODUCTION; ETHANOL-PRODUCTION; YEAST SUPPORTS; SP NOV.; FERMENTATION; BUTYRICUM; SYSTEM; CELLS AB Two-stage anaerobic digestion process has been frequently applied to the sequential production of hydrogen and methane from various organic substrates/wastes. In this study, a cost-effective byproduct of food industry, molasses, was used as a sole carbon source for the two-stage biogas-producing process. The two-stage process consisted of two reactor parts named as the first-stage hydrogenic reactor (HR) operated at pH 5.5 and 35 degrees C and the second-stage methanogenic reactor (MR) at pH 7.0 and 35 degrees C. Microbial community analysis revealed that Clostridium butyricum was the major hydrogen-producing bacteria and methanogens consisted of hydrotrophic bacteria like Methanobacterium beijingense and acetotrophic bacteria like Methanothrix soehngenii. In the first-stage process, hydrogen could be efficiently produced from diluted molasses with the highest production rate of 2.8 (+/- 0.22) L-H(2)/L-reactor/d at the optimum HRT of 6 h. In the second-stage process, methane could be also produced from residual sugars and VFAs with a production rate of 1.48 (+/- 0.09) L-CH(4)/L-reactor/d at the optimum HRT of 6 d, at which overall COD removal efficiency of the two-stage process was determined to be 79.8%. Finally, economic assessment supported that cost-effective molasses was a potent carbon source for the sequential production of hydrogen and methane by two-stage anaerobic digestion process. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [Park, Donghee; Lee, Dae Sung] Kyungpook Natl Univ, Dept Environm Engn, Taegu 702701, South Korea. [Park, Mi Jung; Park, Jong Moon] Pohang Univ Sci & Technol, Sch Environm Sci & Engn, Pohang 790784, South Korea. [Park, Mi Jung; Park, Jong Moon] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea. [Jo, Ji Hye] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. RP Lee, DS (reprint author), Kyungpook Natl Univ, Dept Environm Engn, 1370 Sankyuk Dong, Taegu 702701, South Korea. EM daesung@knu.ac.kr; jmpark@postech.ac.kr FU Ministry of Education, Science and Technology [2010-0001444, 2010-0001437, 2009-0093819]; Korean Government [KRF-2008-357-D00155]; Brain Korea 21 Program; Ministry of Knowledge and Economy (MKE) FX This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0001444 & 2010-0001437) as well as by the NRF grant funded by the Korean Government (KRF-2008-357-D00155). This work was also partially supported by the second phase of the Brain Korea 21 Program in 2010 as well as by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the MEST (2009-0093819). This work is also the outcome of a Manpower Development Program for Energy & Resources supported by the Ministry of Knowledge and Economy (MKE) NR 34 TC 43 Z9 47 U1 3 U2 21 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD JUN PY 2010 VL 35 IS 12 BP 6194 EP 6202 DI 10.1016/j.ijhydene.2010.03.135 PG 9 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 619FP UT WOS:000279414900014 ER PT J AU Ibrahim, YM Prior, DC Baker, ES Smith, RD Belov, ME AF Ibrahim, Yehia M. Prior, David C. Baker, Erin S. Smith, Richard D. Belov, Mikhail E. TI Characterization of an ion mobility-multiplexed collision-induced dissociation-tandem time-of-flight mass spectrometry approach SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY LA English DT Article DE Ion mobility spectrometry; Multiplexed CID; Time-of-flight; Peptide identification; False discovery rate ID ELECTRON-CAPTURE DISSOCIATION; PROTEIN-SEQUENCE ANALYSIS; COMPLEX PEPTIDE MIXTURES; FIELD DRIFT-TUBE; LIQUID-CHROMATOGRAPHY; FUNNEL TRAP; TRYPTIC PEPTIDES; IDENTIFICATION; MS/MS; QUADRUPOLE AB The confidence in peptide (and protein) identifications with ion mobility spectrometry time-of-flight mass spectrometry (IMS-TOFMS) is expected to drastically improve with the addition of information from an efficient ion dissociation step prior to MS detection. High throughput IMS-TOFMS analysis imposes a strong need for multiplexed ion dissociation approaches where multiple precursor ions yield complex sets of fragment ions that are often intermingled with each other in both the drift time and m/z domains. We have developed and evaluated an approach for collision-induced dissociation (CID) using IMS-TOFMS instrument. It has been shown that precursor ions activated inside an rf-device with an axial de-electric field produce abundant fragment ions which are radially confined with the rf-field and collisionally cooled at an elevated pressure. resulting in high CID efficiencies comparable or higher than those measured in triple-quadrupole instruments. We have also developed an algorithm for deconvoluting these complex multiplexed tandem MS spectra by clustering both the precursor and fragment ions into matching drift time profiles and by utilizing the high mass measurement accuracy achievable with TOFMS In a single IMS separation from direct infusion of tryptic digest of bovine serum albumin (BSA). we have reliably identified 20 unique peptides using a multiplexed CID approach downstream of the IMS separation Peptides were identified based upon the correlation between the precursor and fragment drift time profiles and by matching the profile representative masses to those of in silico BSA tryptic peptides and their fragments. The false discovery rate (FDR) of peptide identifications from multiplexed MS/MS spectra was less than 1% (C) 2010 Elsevier B.V. All rights reserved C1 [Ibrahim, Yehia M.; Prior, David C.; Baker, Erin S.; Smith, Richard D.; Belov, Mikhail E.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RP Belov, ME (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999,MS K8-98, Richland, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 FU U.S. Department of Energy (DOE) Office of Biological and Environmental Research [DE-AC05-76RL0 1830]; Environmental Molecular Science Laboratory (EMSL); NIH National Center for Research Resources [RR018522] FX The authors thank William Danielson III for the helpful discussions. Portions of this research were supported by the U.S. Department of Energy (DOE) Office of Biological and Environmental Research, the Environmental Molecular Science Laboratory (EMSL) and the NIH National Center for Research Resources (Grant RR018522). This work was performed in the Environmental Molecular Science Laboratory (EMSL), a DOE national scientific user facility at the Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the DOE under contract DE-AC05-76RL0 1830. NR 46 TC 16 Z9 16 U1 1 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1387-3806 J9 INT J MASS SPECTROM JI Int. J. Mass Spectrom. PD JUN 1 PY 2010 VL 293 IS 1-3 BP 34 EP 44 DI 10.1016/j.ijms.2010.03.009 PG 11 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA 609BR UT WOS:000278630300005 PM 20596241 ER PT J AU Back, BB AF Back, B. B. CA HELIOS Collaboration TI THE HELIOS SPECTROMETER AND THE RADIOACTIVE BEAM PROGRAM AT ARGONNE SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article; Proceedings Paper CT International Conference on Nuclear Reactions on Nucleons and Nuclei CY OCT 05-09, 2009 CL Messina, ITALY SP Univ Messina, Fondaz Bonino Pulejo, Comune Messina, Prov Reggio Messina, INFN Sezione Catania, INFN Lab Nazl Sud Catania ID F-18(P,ALPHA)O-15 REACTION; ENERGIES; ELEMENTS AB The near-term radioactive beam capabilities of ATLAS include radioactive beams produced in flight in a gas cell, or starting in the fall of 2009, re-accelerated beams of Cf-252 fission fragments provided by the new CARIBU injector. The availability of such exotic beams will allow for detailed studies of the single-particle aspects of nuclear structure in neutron-rich nuclei reaching out to the astrophysical r-process path by employing light-ion reactions in inverse kinematics. The HELIOS spectrometer is based on a new concept that is especially well suited for such studies. This concept was recently demonstrated using the reactions D(Si-28,p)Si-29 with a (stable) 168 MeV Si-28 beam. Since then D(B-12,p)B-13, D(O-17,p)O-18, and D(C-15,p)C-16 have been studied successfully. The combination of neutron-rich beams from CARIBU and the HELIOS spectrometer opens a fertile research area of precision studies of the single particle strengths and collective excitations in exotic nuclei, and is likely to have applications in other reactions as well. C1 Argonne Natl Lab, Argonne, IL 60439 USA. RP Back, BB (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 21 TC 0 Z9 0 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD JUN PY 2010 VL 19 IS 5-6 BP 825 EP 836 DI 10.1142/S021830131001528X PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 613CA UT WOS:000278952500003 ER PT J AU De Jager, K AF De Jager, Kees CA JLab Hall A EMFF Collaboration TI THE SUPERBIGBITE PROJECT A STUDY OF NUCLEON FORM FACTORS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article; Proceedings Paper CT International Conference on Nuclear Reactions on Nucleons and Nuclei CY OCT 05-09, 2009 CL Messina, ITALY SP Univ Messina, Fondaz Bonino Pulejo, Comune Messina, Prov Reg Messina, INFN Sezione Catania, INFN Lab Nazl Sud Catania AB A proposed set of instrumentation, collectively referred to as the Super Bigbite project, is presented. Used in three different configurations it will allow measurements of three nucleon electromagnetic form factors G(E)(n), G(E)(p), and G(M)(n) with unprecedented precision to Q(2)-values up to three times higher than existing data. C1 Jefferson Lab, Newport News, VA 23606 USA. RP De Jager, K (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA 23606 USA. NR 22 TC 6 Z9 6 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD JUN PY 2010 VL 19 IS 5-6 BP 844 EP 855 DI 10.1142/S0218301310015308 PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 613CA UT WOS:000278952500005 ER PT J AU Lister, CJ AF Lister, C. J. (Kim) TI PRECISION MEASUREMENTS OF ELECTROMAGNETIC TRANSITION RATES IN A=10 NUCLEI AS A TEST OF GFMC Ab-INITIO CALCULATIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article; Proceedings Paper CT International Conference on Nuclear Reactions on Nucleons and Nuclei CY OCT 05-09, 2009 CL Messina, ITALY SP Univ Messina, Fondaz Bonino Pulejo, Comune Messina, Prov Reggio Messina, INFN Sezione Catania, INFN Lab Nazl Sud Catania ID 1P-SHELL AB A new generation of self-consistent calculations has deepened our understanding of how nuclei are bound and the structure and spatial extent of their wave functions. New methods are being developed to calculate nuclear properties starting from realistic unrenormalized two-body nucleon-nucleon potentials. Higher order correlations are needed to reproduce both masses and spectra, and the special importance of three-body correlations has become clear. Precise experimental measurements can help improve the calculations and constrain the form and strength of three body Hamiltonians. In this contribution, I will review new calculations on A=10 nuclei made with the Greens Function Monte Carlo method (GFMC) using a variety of three-body interactions, and new experiments designed to measure the life time of excited states with an improved Doppler Shift Attenuation Method (DSAM*). The electromagnetic matrix elements are determined to a level of precision, <5%, that really challenge GFMC and other contemporary theories. C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Lister, CJ (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 37 TC 0 Z9 0 U1 1 U2 2 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD JUN PY 2010 VL 19 IS 5-6 BP 946 EP 956 DI 10.1142/S0218301310015394 PG 11 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 613CA UT WOS:000278952500014 ER PT J AU Artemov, SV Igamov, SB Karakhodzhaev, AA Nie, GK Yarmukhamedov, R Zaparov, EA Burtebaev, N Rehm, KE AF Artemov, S. V. Igamov, S. B. Karakhodzhaev, A. A. Nie, G. K. Yarmukhamedov, R. Zaparov, E. A. Burtebaev, N. Rehm, K. E. TI ESTIMATES OF THE ASTROPHYSICAL S-FACTORS FOR PROTON RADIATIVE CAPTURE BY B-10 AND Mg-24 NUCLEI USING THE ANCs FROM PROTON TRANSFER REACTIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article; Proceedings Paper CT International Conference on Nuclear Reactions on Nucleons and Nuclei CY OCT 05-09, 2009 CL Messina, ITALY SP Univ Messina, Fondaz Bonino Pulejo, Comune Messina, Prov Reggio Messina, INFN Sezione Catania, INFN Lab Nazl Sud Catania ID CROSS-SECTION; SCATTERING AB The contribution of the direct radiative capture of protons by B-10 and Mg-24 nuclei at low energies to the astrophysical S-factors in the reactions B-10(p,gamma)C-11 and Mg-24(p,gamma)Al-25 have been calculated within the R-matrix formalism by using empirical proton asymptotical normalization coefficients (ANC). The ANCs for bound proton configurations {B-10+p} and {Mg-24+p} were obtained from the analysis of the reactions (He-3,d). The ANCs were also estimated from the values of the neutron ANCs in the mirror nucleus Mg-25 following the suggestion that the neutron and the proton in the mirror states have equivalent nuclear potentials. It has been found that the S-factor for the reaction B-10(p,gamma)C-11 extrapolated to zero energy contributes similar to 100 keV b to the radiative capture to the ground state of C-11. For the reaction Mg-24(p,gamma)Al-25 the value S(0) gives 58 keV b with a direct capture contribution of 41 keV b. C1 [Artemov, S. V.; Igamov, S. B.; Karakhodzhaev, A. A.; Nie, G. K.; Yarmukhamedov, R.; Zaparov, E. A.] Uzbek Acad Sci, Inst Nucl Phys, Tashkent 100214, Uzbekistan. [Rehm, K. E.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Artemov, SV (reprint author), Uzbek Acad Sci, Inst Nucl Phys, Tashkent 100214, Uzbekistan. EM artemov@inp.uz NR 24 TC 5 Z9 5 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD JUN PY 2010 VL 19 IS 5-6 BP 1102 EP 1108 DI 10.1142/S0218301310015540 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 613CA UT WOS:000278952500029 ER PT J AU Anderoglu, O Misra, A Wang, J Hoagland, RG Hirth, JP Zhang, X AF Anderoglu, O. Misra, A. Wang, J. Hoagland, R. G. Hirth, J. P. Zhang, X. TI Plastic flow stability of nanotwinned Cu foils SO INTERNATIONAL JOURNAL OF PLASTICITY LA English DT Article DE Nanotwins; Deformation; Cu; Texture ID NANOLAYERED METALLIC COMPOSITES; TWIN BOUNDARY MIGRATION; NANOSCALE TWINS; ULTRAHIGH-STRENGTH; GRAIN-BOUNDARIES; RATE SENSITIVITY; THIN-FILMS; COPPER; DISLOCATIONS; DEFORMATION AB The plastic flow stability of nanotwinned Cu foils was investigated via room temperature rolling. Nanotwinned Cu, with an average twin thickness of 5 nm, exhibited stable plastic flow without shear localization or fracture, even at thickness reduction of over 50%. The retention of (1 1 1) fiber texture after rolling indicates insignificant out-of-plane rotation of the columnar grains and is interpreted in terms of a symmetric slip model. No significant change in the average twin lamellae thickness was seen even at thickness reduction of over 50%, suggesting that some twin boundaries were annihilated during deformation. The annihilation of very thin twins is a consequence of migration of twin boundaries due to the glide of twinning dislocations (disconnections) in the twin plane. The work hardening after rolling is correlated with the dislocation storage at twin boundaries. Published by Elsevier Ltd. C1 [Misra, A.; Wang, J.; Hoagland, R. G.; Hirth, J. P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Anderoglu, O.; Zhang, X.] Texas A&M Univ, Dept Mech Engn, Mat Sci & Engn Program, Cs, TX 77843 USA. RP Wang, J (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA. EM wangj6@lanl.gov RI Misra, Amit/H-1087-2012; Hoagland, Richard/G-9821-2012; Zhang, Xinghang/H-6764-2013; Wang, Jian/F-2669-2012 OI Zhang, Xinghang/0000-0002-8380-8667; Wang, Jian/0000-0001-5130-300X FU NSF [0644835]; DOE, Office of Science, Office of Basic Energy Sciences FX We acknowledge help from J. Kevin Baldwin (LANL) in magnetron sputtering and A. Donohue (Harvard University) in texture measurements. Discussion with J.D. Embury and F. Spaepen are acknowledged. XZ acknowledges financial support by NSF-DMR Metallic Materials and Nanostructures Program, under Grant no 0644835, and access to the Center for Integrated Nanotechnologies at Los Alamos National Laboratory through user program. The research at LANL is sponsored by DOE, Office of Science, Office of Basic Energy Sciences. NR 52 TC 53 Z9 53 U1 4 U2 55 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0749-6419 J9 INT J PLASTICITY JI Int. J. Plast. PD JUN PY 2010 VL 26 IS 6 BP 875 EP 886 DI 10.1016/j.ijplas.2009.11.003 PG 12 WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA 611CO UT WOS:000278788500006 ER PT J AU Shingledecker, JP Evans, ND AF Shingledecker, J. P. Evans, N. D. TI Creep-rupture performance of 0.07C-23Cr-45Ni-6W-Ti,Nb austenitic alloy (HR6W) tubes SO INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING LA English DT Article; Proceedings Paper CT 2nd International Conference on Creep and Fracture in High Temperature Components CY APR 21-23, 2009 CL Zurich, SWITZERLAND SP European Creep Collaborat Comm, Spesl, ALSTOM DE Creep; Laves phase; Austenitic alloy; Advanced ultrasupercritical; Alpha-Cr; HR6W AB A series of base metal and cross-weld creep-rupture tests were conducted on the advanced austenitic alloy, HR6W, to evaluate the material for use at advanced ultrasupercritical (A-USC) steam conditions. Creep deformation and rupture were evaluated by traditional methods and data were compared with other studies to evaluate the creep response of the material. Optical and scanning electron microscopy revealed changes in failure mode and precipitation behavior. Thermodynamic predictions of phase stability were conducted and the results were compared with the experimental data. This research. confirmed the important role of W and the precipitation of laves phase in the alloy system, but a direct relationship between laves phase content and creep strength was not observed. Furthermore, Cr content was investigated as an additional factor which may be important in the microstructural stability of the alloy which had not been previously considered. Finally, when compared to commercially available stainless steels, this heat of HR6W showed no creep strength advantage for A-USC application. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Shingledecker, J. P.] Elect Power Res Inst, Charlotte, NC USA. [Shingledecker, J. P.; Evans, N. D.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Evans, N. D.] Univ Tennessee, Knoxville, TN USA. RP Shingledecker, JP (reprint author), Elect Power Res Inst, Charlotte, NC USA. EM jshingledecker@epri.com RI Evans, Neal/F-5955-2011 NR 9 TC 10 Z9 11 U1 1 U2 14 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0308-0161 J9 INT J PRES VES PIP JI Int. J. Pressure Vessels Pip. PD JUN PY 2010 VL 87 IS 6 SI SI BP 345 EP 350 DI 10.1016/j.ijpvp.2010.03.011 PG 6 WC Engineering, Multidisciplinary; Engineering, Mechanical SC Engineering GA 621CL UT WOS:000279551300011 ER PT J AU Sailor, WC AF Sailor, William C. TI Civilian Nuclear Cooperation and the Proliferation of Nuclear Weapons SO INTERNATIONAL SECURITY LA English DT Letter C1 Los Alamos Natl Lab, Los Alamos, NM 87544 USA. RP Sailor, WC (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU MIT PRESS PI CAMBRIDGE PA 55 HAYWARD STREET, CAMBRIDGE, MA 02142 USA SN 0162-2889 J9 INT SECURITY JI Int. Secur. PD SUM PY 2010 VL 35 IS 1 BP 191 EP 193 PG 3 WC International Relations SC International Relations GA 619KK UT WOS:000279428900010 ER PT J AU Shet, S Ahn, KS Nuggehalli, R Yan, YF Turner, J Al-Jassim, M AF Shet, Sudhakar Ahn, Kwang-Soon Nuggehalli, Ravindra Yan, Yanfa Turner, John Al-Jassim, Mowafak TI Effects of Substrate Temperature and RF Power on the Formation of Aligned Nanorods in ZnO Thin Films SO JOM LA English DT Article ID SENSITIZED SOLAR-CELLS; PHOTOELECTROCHEMICAL PROPERTIES; HYDROGEN GENERATION; WATER; GROWTH; TIO2; PHOTOCATALYSIS; ENHANCEMENT; ELECTRODES; DEPOSITION AB We report on the ejects of substrate temperature and RE power on the formation of aligned nanorod-like morphology in ZnO thin films. ZnO thin films were sputter-deposited in mixed Ar and N(2) gas ambient at various substrate temperatures and RE powers. We find that the substrate temperature plays more important role than RE power in the formation of ZnO nanorod-like morphology. At low substrate temperatures (below 300 degrees C), ZnO nanorod-like morphology does not form regardless of RF powers. High RE power helps to promote the formation of aligned ZnO nanorod-like morphology. However; lower RE powers usually lead to ZnO films with better crystallinity at the same substrate temperatures in mixed Ar and N(2) gas ambient and therefore better photoelectrochemical response. C1 [Shet, Sudhakar; Yan, Yanfa; Turner, John; Al-Jassim, Mowafak] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Ahn, Kwang-Soon] Yeungnam Univ, Sch Display & Chem Engn, Gyeonbuk 712749, South Korea. [Shet, Sudhakar; Nuggehalli, Ravindra] New Jersey Inst Technol, Newark, NJ 07102 USA. RP Shet, S (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Sudhakar.Shet@nrel.gov FU U.S. Department of Energy [DE-AC36-99-GO10337] FX We thank Kim Jones for FE-SEM and Glenn Teeter for XPS experiments. This work was supported by the U.S. Department of Energy EERE Hydrogen Program under contract #DE-AC36-99-GO10337. NR 25 TC 15 Z9 15 U1 0 U2 12 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD JUN PY 2010 VL 62 IS 6 BP 25 EP 30 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 608WQ UT WOS:000278617100005 ER PT J AU Brady, MP AF Brady, M. P. TI Corrosion as a Nanostructure Synthesis Strategy SO JOM LA English DT Editorial Material ID CARBON; ALLOY C1 Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA. RP Brady, MP (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA. OI Brady, Michael/0000-0003-1338-4747 NR 12 TC 0 Z9 0 U1 0 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD JUN PY 2010 VL 62 IS 6 BP 31 EP 31 PG 1 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 608WQ UT WOS:000278617100006 ER PT J AU Paital, SR He, W Daniel, C Dahotre, NB AF Paital, Sameer R. He, Wei Daniel, Claus Dahotre, Narendra B. TI Laser Process Effects on Physical Texture and Wetting in Implantable Ti-Alloys SO JOM LA English DT Article ID COATINGS; HYDROXYAPATITE; DEPOSITION AB Wetting is an important aspect for implantable biomaterials, as it affects the initial interaction with physiological fluids, which in turn dictates the protein adsorption, cell attachment, and tissue integration at the interface. In light of this in the present overview, surface engineering techniques based on laser processing of implantable titanium alloys for improved wettability and cell compatibility is discussed. Here three different laser processing techniques, laser interference patterning, continuous wave laser direct melting, and pulsed laser direct melting and the influence of each type of processing on the micro-texture evolution are studied. Finally, the effect of micro-textures on the wettability and thereby its in vitro bioactivity and in vitro biocompatibility is systematically discussed. C1 [Paital, Sameer R.] Univ Tennessee, Dept Mat Sci & Engn, Lab Laser Mat Synth & Fabricat, Knoxville, TN 37996 USA. [He, Wei] Univ Tennessee, Mech Aerosp & Biomed Engn Dept, Knoxville, TN 37996 USA. [Daniel, Claus] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA. [Dahotre, Narendra B.] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76207 USA. RP Paital, SR (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Lab Laser Mat Synth & Fabricat, Knoxville, TN 37996 USA. RI He, Wei/K-7218-2013; Daniel, Claus/A-2060-2008 OI Daniel, Claus/0000-0002-0571-6054 FU U.S. Department of Energy [DE-AC05-00OR22725]; Office of Energy Efficiency and Renewable Energy FX A part of this research has been performed at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy, under contract DE-AC05-00OR22725 and has been sponsored by the Industrial Technologies Program for the Office of Energy Efficiency and Renewable Energy. NR 18 TC 4 Z9 4 U1 2 U2 7 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD JUN PY 2010 VL 62 IS 6 BP 76 EP 83 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 608WQ UT WOS:000278617100014 ER PT J AU Ashkar, R Stonaha, P Washington, AL Shah, VR Fitzsimmons, MR Maranville, B Majkrzak, CF Lee, WT Schaich, WL Pynn, R AF Ashkar, Rana Stonaha, P. Washington, A. L. Shah, V. R. Fitzsimmons, M. R. Maranville, B. Majkrzak, C. F. Lee, W. T. Schaich, W. L. Pynn, Roger TI Dynamical theory calculations of spin-echo resolved grazing-incidence scattering from a diffraction grating SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID ANGLE NEUTRON-SCATTERING; X-RAY; ROUGH SURFACES; ELECTRONS; REFLECTIVITY; CRYSTALS; ATOMS; FILMS AB Neutrons scattered or reflected from a diffraction grating are subject to a periodic potential analogous to the potential experienced by electrons within a crystal. Hence, the wavefunction of the neutrons can be expanded in terms of Bloch waves and a dynamical theory can be applied to interpret the scattering phenomenon. In this paper, a dynamical theory is used to calculate the results of neutron spin-echo resolved grazing-incidence scattering (SERGIS) from a silicon diffraction grating with a rectangular profile. The calculations are compared with SERGIS measurements made on the same grating at two neutron sources: a pulsed source and a continuous wave source. In both cases, the spin-echo polarization, studied as a function of the spin-echo length, peaks at integer multiples of the grating period but there are some differences between the two sets of data. The dynamical theory explains the differences and gives a good account of both sets of results. (C) 2010 International Union of Crystallography Printed in Singapore - all rights reserved C1 [Ashkar, Rana; Stonaha, P.; Washington, A. L.; Pynn, Roger] Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47408 USA. [Ashkar, Rana; Stonaha, P.; Washington, A. L.; Schaich, W. L.; Pynn, Roger] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Shah, V. R.] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA. [Pynn, Roger] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN 37831 USA. [Fitzsimmons, M. R.] Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. [Lee, W. T.] Australian Nucl Sci & Technol Org, Bragg Inst, Kirrawee Dc, NSW 2232, Australia. [Maranville, B.; Majkrzak, C. F.] NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. RP Ashkar, R (reprint author), Indiana Univ, Ctr Explorat Energy & Matter, Bloomington, IN 47408 USA. EM rashkar@indiana.edu; rpynn@indiana.edu RI Lujan Center, LANL/G-4896-2012; OI Stonaha, Paul/0000-0002-6846-2442; Ashkar, Rana/0000-0003-4075-2330; Washington, Adam/0000-0002-3243-1556 FU US Department of Energy through its Office of Basic Energy Sciences, Division of Material Science and Engineering [DE-FG0209ER46279]; US Department of Commerce FX This work was supported by the US Department of Energy through its Office of Basic Energy Sciences, Division of Material Science and Engineering (grant No. DE-FG0209ER46279). The NIST Center for Neutron Research, where one of the experiments described here was performed, is funded by the US Department of Commerce. The Los Alamos Neutron Science Center, where the other experiment was carried out, is operated by the US Department of Energy. The authors thank the staff of both facilities for their assistance. NR 32 TC 16 Z9 16 U1 0 U2 12 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 455 EP 465 DI 10.1107/S0021889810010642 PN 3 PG 11 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600009 ER PT J AU Coates, L Stoica, AD Hoffmann, C Richards, J Cooper, R AF Coates, L. Stoica, A. D. Hoffmann, C. Richards, J. Cooper, R. TI The macromolecular neutron diffractometer (MaNDi) at the Spallation Neutron Source, Oak Ridge: enhanced optics design, high-resolution neutron detectors and simulated diffraction SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID SPATIAL DISTORTION; SYSTEM; SHAPE AB The macromolecular neutron diffractometer MaNDi is currently under construction at the first target station of the Spallation Neutron Source at Oak Ridge National Laboratory. This instrument will collect neutron diffraction data from small single crystals (0.1-1 mm(3)) with lattice constants between 100 and 300 angstrom, as well as data from less well ordered systems such as fibers. A focusing neutron guide has been designed to filter the high-energy neutron component of the spectrum and to provide a narrow beam with a wide spectral window and angular divergence almost insensitive to neutron wavelength. The system includes a final interchangeable section of neutron guide and two slits, which enable tuning of the horizontal and vertical beam divergence between 0.12 and 0.80 degrees (full width at half-maximum) at the sample position. This allows the trading of intensity for resolution, depending on the scientific requirements. Efforts to enhance and develop suitable high-resolution neutron detectors at an affordable price are also discussed. Finally, the parameters of the neutron guide and detectors were used to simulate diffraction from a large unit cell. (c) 2010 International Union of Crystallography Printed in Singapore - all rights reserved C1 [Coates, L.; Stoica, A. D.; Hoffmann, C.; Richards, J.; Cooper, R.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. RP Coates, L (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM coatesl@ornl.gov RI Stoica, Alexandru/K-3614-2013; OI Stoica, Alexandru/0000-0001-5118-0134; Coates, Leighton/0000-0003-2342-049X FU US Department of Energy [DE-AC05-000R22725] FX Oak Ridge National Laboratory is managed by UT-Battelle, LLC, under contract No. DE-AC05-000R22725 for the US Department of Energy. The authors thank Art Schultz, Bryan Chakoumakos, Jason Hodges and Xiaoping Wang for many helpful discussions on single-crystal neutron diffraction and neutron guide systems. LC thanks Peter Willendrup and Andreas Ostermann for help and assistance with the MCSTAS program. NR 15 TC 25 Z9 25 U1 0 U2 16 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 570 EP 577 DI 10.1107/S0021889810008587 PN 3 PG 8 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600022 ER PT J AU Ying, A Osting, B Noyan, IC Murray, CE Holt, M Maser, J AF Ying, Andrew Osting, Braxton Noyan, I. C. Murray, Conal E. Holt, Martin Maser, Joerg TI Modeling of kinematic diffraction from a thin silicon film illuminated by a coherent, focused X-ray nanobeam SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID RESOLUTION AB A rigorous model of a diffraction experiment utilizing a coherent, monochromatic, X-ray beam, focused by a Fresnel zone plate onto a thin, perfect, single-crystal layer is presented. In this model, first the coherent wave emanating from an ideal zone plate equipped with a direct-beam stop and order-sorting aperture is computed. Then, diffraction of the focused wavefront by a thin silicon film positioned at the primary focal spot is calculated. This diffracted wavefront is propagated to the detector position, and the intensity distribution at the detector plane is extracted. The predictions of this model agree quite well with experimental data measured at the Center for Nanoscale Materials nanoprobe instrument at Sector 26 of the Advanced Photon Source. (c) 2010 International Union of Crystallography Printed in Singapore - all rights reserved C1 [Ying, Andrew; Osting, Braxton; Noyan, I. C.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. [Murray, Conal E.] IBM Corp, TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA. [Holt, Martin; Maser, Joerg] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Noyan, IC (reprint author), Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. EM icn2@columbia.edu RI Maser, Jorg/K-6817-2013 FU National Science Foundation [DMS06-02235, EMSW21-RTG]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors would like to thank Mr Sean Polvino for help during the experimental measurement. The authors would also like to thank Dr Hanfei Yan and Dr Ozgur Kalenci for interesting discussions and reviewing the pre-published manuscript. BO acknowledges support from the National Science Foundation under grant No. DMS06-02235, EMSW21-RTG: Numerical Mathematics for Scientific Computing. 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. User operation of the Nanoprobe Beamline was supported by MH, JM, Robert Winarski and Volker Rose. NR 16 TC 13 Z9 13 U1 2 U2 15 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 587 EP 595 DI 10.1107/S0021889810008459 PN 3 PG 9 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600024 ER PT J AU Sauter, NK Poon, BK AF Sauter, Nicholas K. Poon, Billy K. TI Autoindexing with outlier rejection and identification of superimposed lattices SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID X-RAY-DIFFRACTION; MICROCAPILLARY PROTEIN CRYSTALLIZATION; DATA-COLLECTION; MACROMOLECULAR CRYSTALLOGRAPHY; POST-REFINEMENT; INTEGRATION; CRYSTALS; PATTERNS; SOFTWARE; SYSTEM AB Constructing a model lattice to fit the observed Bragg diffraction pattern is straightforward for perfect samples, but indexing can be challenging when artifacts are present, such as poorly shaped spots, split crystals giving multiple closely aligned lattices and outright superposition of patterns from aggregated microcrystals. To optimize the lattice model against marginal data, refinement can be performed using a subset of the observations from which the poorly fitting spots have been discarded. Outliers are identified by assuming a Gaussian error distribution for the best-fitting spots and points diverging from this distribution are culled. The set of remaining observations produces a superior lattice model, while the rejected observations can be used to identify a second crystal lattice, if one is present. The prevalence of outliers provides a potentially useful measure of sample quality. The described procedures are implemented for macromolecular crystallography within the autoindexing program labelit.index (http://cci.lbl.gov/labelit). C1 [Sauter, Nicholas K.; Poon, Billy K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Sauter, NK (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM nksauter@lbl.gov RI Sauter, Nicholas/K-3430-2012 FU NIH [1R01GM77071]; DOE [DE-AC02-05CH11231] FX The authors thank Ashley Deacon (Joint Center for Structural Genomics) for creating the archive of full data sets associated with published JCSG structures, making it possible to test new methods such as those described here. Peter Zwart (Berkeley Center for Structural Biology of the Lawrence Berkeley National Laboratory) provided the lysozyme data set. Ralf Grosse-Kunstleve (Lawrence Berkeley National Laboratory) and David Richardson (Duke University) engaged in helpful discussions. We thank the NIH for financial support of the LABELIT project (grant No. 1R01GM77071).; This work was partially supported by DOE contract No. DE-AC02-05CH11231. NR 32 TC 14 Z9 14 U1 0 U2 3 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 611 EP 616 DI 10.1107/S0021889810010782 PN 3 PG 6 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600027 PM 20502598 ER PT J AU Juhas, P Granlund, L Gujarathi, R Duxbury, PM Billinge, SJL AF Juhas, P. Granlund, L. Gujarathi, R. Duxbury, P. M. Billinge, S. J. L. TI Crystal structure solution from experimentally determined atomic pair distribution functions SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID AB-INITIO DETERMINATION; NANOSTRUCTURE; REFINEMENT; RADII AB An extension of the Liga algorithm for structure solution from atomic pair distribution functions (PDFs), to handle periodic crystal structures with multiple elements in the unit cell, is described. The procedure is performed in three separate steps. First, pair distances are extracted from the experimental PDF. In the second step the Liga algorithm is used to find unit-cell sites consistent with these pair distances. Finally, the atom species are assigned over the cell sites by minimizing the overlap of their empirical atomic radii. The procedure has been demonstrated on synchrotron X-ray PDF data from 16 test samples. The structure solution was successful for 14 samples, including cases with enlarged super-cells. The algorithm success rate and the reasons for the failed cases are discussed, together with enhancements that should improve its convergence and usability. C1 [Juhas, P.; Billinge, S. J. L.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. [Granlund, L.; Gujarathi, R.; Duxbury, P. M.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Billinge, S. J. L.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Juhas, P (reprint author), Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. EM pj2192@columbia.edu RI Juhas, Pavol/A-6544-2008 OI Juhas, Pavol/0000-0001-8751-4458 FU High Performance Computing Center of Michigan State University; National Science Foundation (NSF) Division of Materials Research [DMR-0520547]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [W-31-109-Eng-38, W-7405-Eng-82] FX We gratefully acknowledge Dr Emil Bozin, Dr Ahmad Masadeh and Dr Douglas Robinson for help with the X-ray measurements at the Advanced Photon Source, Argonne National Laboratory (APS, ANL). We thank Dr Christopher Farrow for helpful suggestions and consultations, and Dr Christos Malliakas for providing NaCl and ZnS wurtzite samples. We appreciate the computing time and support at the High Performance Computing Center of Michigan State University, where we performed all the computations. This work was supported by the National Science Foundation (NSF) Division of Materials Research through grant No. DMR-0520547. Use of the APS is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract No. W-31-109-Eng-38. The 6ID-D beamline in the MUCAT sector at the APS is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, through the Ames Laboratory under contract No. W-7405-Eng-82. NR 33 TC 13 Z9 13 U1 0 U2 20 PU INT UNION CRYSTALLOGRAPHY PI CHESTER PA 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND SN 1600-5767 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 623 EP 629 DI 10.1107/S002188981000988X PN 3 PG 7 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600029 ER PT J AU Wurden, C Page, K Llobet, A White, CE Proffen, T AF Wurden, Caroline Page, Katharine Llobet, Anna White, Claire E. Proffen, Thomas TI Extracting differential pair distribution functions using MIXSCAT SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Software Review ID NEUTRON-DIFFRACTION; HIGH-RESOLUTION; X-RAY; SCATTERING; LIQUIDS; GLASSES AB Differently weighted experimental scattering data have been used to extract partial or differential structure factors or pair distribution functions in studying many materials. However, this is not done routinely partly because of the lack of user-friendly software. This paper presents MIXSCAT, a new member of the DISCUS program package. MIXSCAT allows one to combine neutron and X-ray pair distribution functions and extract their respective differential functions. C1 [Wurden, Caroline; Page, Katharine; Llobet, Anna; White, Claire E.; Proffen, Thomas] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [White, Claire E.] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia. RP Proffen, T (reprint author), Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. EM tproffen@lanl.gov RI Page, Katharine/C-9726-2009; White, Claire/A-1722-2011; Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; Proffen, Thomas/B-3585-2009 OI Page, Katharine/0000-0002-9071-3383; White, Claire/0000-0002-4800-7960; Proffen, Thomas/0000-0002-1408-6031 NR 24 TC 3 Z9 3 U1 2 U2 7 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD JUN PY 2010 VL 43 BP 635 EP 638 DI 10.1107/S0021889810009155 PN 3 PG 4 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 592PW UT WOS:000277392600032 ER PT J AU Miller, N Ager, JW Smith, HM Mayer, MA Yu, KM Haller, EE Walukiewicz, W Schaff, WJ Gallinat, C Koblmuller, G Speck, JS AF Miller, N. Ager, J. W., III Smith, H. M., III Mayer, M. A. Yu, K. M. Haller, E. E. Walukiewicz, W. Schaff, W. J. Gallinat, C. Koblmueller, G. Speck, J. S. TI Hole transport and photoluminescence in Mg-doped InN SO JOURNAL OF APPLIED PHYSICS LA English DT Article DE Fermi level; Hall effect; III-V semiconductors; impurity states; indium compounds; magnesium; molecular beam epitaxial growth; photoluminescence; Seebeck effect; semiconductor growth; semiconductor thin films; surface states; thermoelectric power; valence bands ID MOLECULAR-BEAM EPITAXY; THERMOELECTRIC MEASUREMENTS; CHARGE ACCUMULATION; CAPACITANCE-VOLTAGE; GAN; SURFACES; DEFECTS; LAYERS; INGAN; FILMS AB Hole conductivity and photoluminescence (PL) were studied in Mg-doped InN films grown by molecular beam epitaxy. Because surface electron accumulation interferes with carrier type determination by electrical measurements, the nature of the majority carriers in the bulk of the films was determined using thermopower measurements. Mg concentrations in a "window" from approximately 3x10(17) to 1x10(19) cm(-3) produce hole-conducting, p-type films as evidenced by a positive Seebeck coefficient. This conclusion is supported by electrolyte-based capacitance voltage measurements and by changes in the overall mobility observed by Hall effect, both of which are consistent with a change from surface accumulation on an n-type film to surface inversion on a p-type film. The observed Seebeck coefficients are understood in terms of a parallel conduction model with contributions from surface and bulk regions. In partially compensated films with Mg concentrations below the window region, two peaks are observed in PL at 672 meV and at 603 meV. They are attributed to band-to-band and band-to-acceptor transitions, respectively, and an acceptor binding energy of similar to 70 meV is deduced. In hole-conducting films with Mg concentrations in the window region, no PL is observed; this is attributed to electron trapping by deep states which are empty for Fermi levels close to the valence band edge. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3427564] C1 [Miller, N.; Ager, J. W., III; Smith, H. M., III; Mayer, M. A.; Yu, K. M.; Haller, E. E.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Miller, N.; Smith, H. M., III; Mayer, M. A.; Haller, E. E.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Schaff, W. J.] Cornell Univ, Dept Elect & Comp Engn, Ithaca, NY 14850 USA. [Gallinat, C.; Koblmueller, G.; Speck, J. S.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. RP Ager, JW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM jwager@lbl.gov RI Speck, James/H-5646-2011; Yu, Kin Man/J-1399-2012; OI Yu, Kin Man/0000-0003-1350-9642; Ager, Joel/0000-0001-9334-9751 FU Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the U.S. Department of Energy [DE-AC02-05CH11231]; National Defense Science and Engineering Graduate (NDSEG) FX The authors acknowledge D. Lefforge of Evans Analytical Group for SIMS measurements, R. Lieten for help with x-ray diffraction measurements, L. Reichertz and J. Beeman for help with instrumentation and sample processing, R. Broesler for discussions of PL, Z. Liliental-Weber for discussions of Mg-related defects in nitrides, and T. D. Veal and P. D. C. King for useful discussions of surface states, Mg doping, and SIMS. This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. N.M. and M. M. were supported by the National Defense Science and Engineering Graduate (NDSEG) Fellowships, 32 CFR 168a, through the DoD, Air Force Office of Scientific Research. NR 64 TC 45 Z9 45 U1 4 U2 58 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUN 1 PY 2010 VL 107 IS 11 AR 113712 DI 10.1063/1.3427564 PG 8 WC Physics, Applied SC Physics GA 612NU UT WOS:000278907100075 ER PT J AU Sharma, PA Sugar, JD Medlin, DL AF Sharma, P. A. Sugar, J. D. Medlin, D. L. TI Influence of nanostructuring and heterogeneous nucleation on the thermoelectric figure of merit in AgSbTe2 SO JOURNAL OF APPLIED PHYSICS LA English DT Article DE antimony compounds; grain boundaries; inclusions; nanostructured materials; nucleation; phase separation; silver compounds; thermoelectric conversion; thermoelectricity ID PERCOLATION; CONDUCTIVITY; AGPBMSBTE2+M; TRANSPORT; COMPOSITE AB In some cases, nanoscale microstructures improve thermoelectric efficiency, but this phenomenon has rarely been studied systematically for precipitates in bulk materials. We quantified the influence of nanostructuring on the thermoelectric figure of merit (zT) by embedding Sb2Te3 inclusions, from nanometer to micron sizes, in an Sb-rich AgSbTe2 matrix through solid-state precipitation. Nucleation/growth and coarsening regimes of precipitate formation had a clear effect on transport properties, which could be understood using the effective medium theory of a two-phase composite. The majority of precipitates nucleated heterogeneously at grain boundaries and at planar defects found in the matrix phase, forming a complex interconnected network. This heterogeneous nucleation causes the precipitate/matrix system to follow effective medium theory even at small precipitate sizes, thus lowering the figure of merit. Therefore, heterogeneous nucleation is a major obstacle to efficiency improvement using nanoscale precipitates in bulk thermoelectrics. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3446094] C1 [Sharma, P. A.; Sugar, J. D.; Medlin, D. L.] Sandia Natl Labs, Dept Mat Phys, Livermore, CA 94550 USA. RP Sharma, PA (reprint author), Sandia Natl Labs, Dept Mat Phys, 7011 East Ave, Livermore, CA 94550 USA. EM pasharm@sandia.gov RI Sharma, Peter/G-1917-2011 OI Sharma, Peter/0000-0002-3071-7382 FU U.S. DOE, NNSA [DE-AC04-94AL85000]; Sandia LDRD office FX We thank F. Leonard, A. L. Lima Sharma, K. McCarty, and G. J. Snyder for useful discussions. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed-Martin Co., for the U.S. DOE, NNSA under contract DE-AC04-94AL85000. Support was provided by the Sandia LDRD office. NR 38 TC 18 Z9 18 U1 1 U2 22 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUN 1 PY 2010 VL 107 IS 11 AR 113716 DI 10.1063/1.3446094 PG 9 WC Physics, Applied SC Physics GA 612NU UT WOS:000278907100079 ER PT J AU Solis, KJ Bell, RC Martin, JE AF Solis, Kyle J. Bell, Richard C. Martin, James E. TI Vortex magnetic field mixing with anisometric particles SO JOURNAL OF APPLIED PHYSICS LA English DT Article DE magnetic particles; magnetohydrodynamics; microfluidics; mixing; suspensions; torque; vortices AB Recently, we reported a vigorous, scale-adaptive mixing technique suitable for microfluidic applications, wherein a suspension of spherical magnetic particles is subjected to a vortex magnetic field, which induces the formation of dynamic particle chains that efficiently stir the solution. Here we explore the dependence of the mixing torque on particle shape, and show that increasing degrees of shape anisometry (i.e., spheres, platelets, rods) give increased mixing torque at the same particle volume fraction. Moreover, all particles, regardless of shape, exhibit similar dependencies of the mixing torque on the vortex field parameters: the torque is maximized in a balanced vortex magnetic field, is proportional to the square of the field strength, and is independent of the field frequency. However, the torque advantage of anisometric particles is somewhat offset by their increased packing volume, which can make the removal of trapped fluid difficult. (c) 2010 American Institute of Physics. [doi:10.1063/1.3394000] C1 [Solis, Kyle J.; Martin, James E.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Bell, Richard C.] Penn State Univ, Dept Chem, Altoona, PA 16601 USA. RP Solis, KJ (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM kjsolis@sandia.gov FU Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy; Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work is supported by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. The authors wish to thank Vladimir Raksha, Paul Coombs, Tom Markantes, and Bill Kittler at JDSU, as well as Matt Groo at Novamet for supplying materials. NR 4 TC 8 Z9 8 U1 1 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUN 1 PY 2010 VL 107 IS 11 AR 114911 DI 10.1063/1.3394000 PG 4 WC Physics, Applied SC Physics GA 612NU UT WOS:000278907100177 ER PT J AU Speaks, DT Mayer, MA Yu, KM Mao, SS Haller, EE Walukiewicz, W AF Speaks, D. T. Mayer, M. A. Yu, K. M. Mao, S. S. Haller, E. E. Walukiewicz, W. TI Fermi level stabilization energy in cadmium oxide SO JOURNAL OF APPLIED PHYSICS LA English DT Article DE annealing; argon; cadmium compounds; carbon; electric properties; electron-electron interactions; Fermi level; flux pinning; helium; II-VI semiconductors; neon; optical properties; point defects ID NATIVE DEFECTS; CDO FILMS; SEMICONDUCTORS; BOMBARDMENT; DEPOSITION; DAMAGE AB We have studied the effects of high concentrations of native point defects on the electrical and optical properties of CdO. The defects were introduced by irradiation with high energy He(+), Ne(+), Ar(+), and C(+) ions. Increasing the irradiation damage with particles heavier than He(+) increases the electron concentration until a saturation level of 5x10(20) cm(-3) is reached. In contrast, due to the ionic character and hence strong dynamic annealing of CdO, irradiation with much lighter He(+) stabilizes the electron concentration at a much lower level of 1.7x10(20) cm(-3). A large shift of the optical absorption edge with increasing electron concentration in irradiated samples is explained by the Burstein-Moss shift corrected for electron-electron and electron-ion interactions. The saturation of the electron concentration and the optical absorption edge energy are consistent with a defect induced stabilization of the Fermi energy at 1 eV above the conduction band edge. The result is in a good agreement with previously determined Fermi level pinning energies on CdO surfaces. The results indicate that CdO shares many similarities with InN, as both materials exhibit extremely large electron affinities and an unprecedented propensity for n-type conductivity. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3428444] C1 [Speaks, D. T.; Mayer, M. A.; Yu, K. M.; Haller, E. E.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Speaks, D. T.; Mayer, M. A.; Haller, E. E.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94704 USA. [Mao, S. S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94704 USA. [Mao, S. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Speaks, DT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM w_walukiewicz@lbl.gov RI Yu, Kin Man/J-1399-2012 OI Yu, Kin Man/0000-0003-1350-9642 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 This work was supported 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. The authors would also like to thank Willam Hansen, Jeffery Beeman, Peter Stone, and Dr. Zhixun Ma for their invaluable help with target materials, film irradiation, and PLD. NR 26 TC 26 Z9 26 U1 2 U2 17 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUN 1 PY 2010 VL 107 IS 11 AR 113706 DI 10.1063/1.3428444 PG 5 WC Physics, Applied SC Physics GA 612NU UT WOS:000278907100069 ER PT J AU Yu, XH Lin, ZJ Zhang, JZ Wang, LP Ding, ZJ Jin, CQ Zhao, YS AF Yu, Xiaohui Lin, Zhijun Zhang, Jianzhong Wang, Liping Ding, Zejun Jin, Changqing Zhao, Yusheng TI Thermal equation of state of TiC: A synchrotron x-ray diffraction study SO JOURNAL OF APPLIED PHYSICS LA English DT Article DE ceramics; elastic moduli; equations of state; high-pressure effects; high-temperature effects; refractories; thermal expansion; thermoelasticity; titanium compounds; X-ray chemical analysis; X-ray diffraction ID COMPOSITES AB The pressure-volume-temperature measurements were carried out for titanium carbide (TiC) at pressures and temperatures up to 8.1 GPa and 1273 K using energy-dispersive synchrotron x-ray diffraction. Thermoelastic parameters were derived for TiC based on a modified high-temperature Birch-Murnaghan equation of state and a thermal pressure approach. With the pressure derivative of the bulk modulus, K(0)('), fixed at 4.0, we obtain: the ambient bulk modulus K(0)=268(6) GPa, which is comparable to previously reported value; temperature derivative of bulk modulus at constant pressure (partial derivative K(T)/partial derivative T)(P)=-0.026(9) GPa K(-1), volumetric thermal expansivity alpha(T)(K(-1))=a+bT with a=1.62(12)x10(-5) K(-1) and b=1.07(17)x10(-8) K(-2), pressure derivative of thermal expansion (partial derivative alpha/partial derivative P)(T)=(-3.62 +/- 1.14)x10(-7) GPa(-1) K(-1), and temperature derivative of bulk modulus at constant volume (partial derivative K(T)/partial derivative T)(V)=-0.015(8) GPa K(-1). These results provide fundamental thermophysical properties for TiC for the first time and are important to theoretical and computational modeling of transition metal carbides. (C) 2010 American Institute of Physics. [doi:10.1063/1.3436571] C1 [Yu, Xiaohui; Lin, Zhijun; Zhang, Jianzhong; Zhao, Yusheng] Los Alamos Natl Lab, LANSCE Div, Los Alamos, NM 87545 USA. [Yu, Xiaohui; Jin, Changqing] Chinese Acad Sci, Inst Phys, Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. [Yu, Xiaohui; Ding, Zejun] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China. [Wang, Liping] SUNY Stony Brook, Inst Mineral Phys, Stony Brook, NY 11794 USA. RP Yu, XH (reprint author), Los Alamos Natl Lab, LANSCE Div, POB 1663, Los Alamos, NM 87545 USA. EM xiaohui@lanl.gov; yzhao@lanl.gov RI Lin, Zhijun/A-5543-2010; Lujan Center, LANL/G-4896-2012; OI Zhang, Jianzhong/0000-0001-5508-1782 FU Los Alamos National Laboratory; DOE [DEAC52-06NA25396]; Consortium for Materials Properties Research in Earth Sciences (COM-PRES) under NSF [EAR 01-35554] FX This research was supported by Los Alamos National Laboratory, which is operated by Los Alamos National Security LLC under DOE Contract No. DEAC52-06NA25396. The experimental work was carried out at beam line X17B2 of the National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by the Consortium for Materials Properties Research in Earth Sciences (COM-PRES) under NSF cooperative agreement (Contract No. EAR 01-35554). NR 22 TC 3 Z9 3 U1 0 U2 8 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD JUN 1 PY 2010 VL 107 IS 11 AR 113517 DI 10.1063/1.3436571 PG 4 WC Physics, Applied SC Physics GA 612NU UT WOS:000278907100040 ER PT J AU Mercer, RG Callister, SJ Lipton, MS Pasa-Tolic, L Strnad, H Paces, V Beatty, JT Lang, AS AF Mercer, Ryan G. Callister, Stephen J. Lipton, Mary S. Pasa-Tolic, Ljiljana Strnad, Hynek Paces, Vaclav Beatty, J. Thomas Lang, Andrew S. TI Loss of the Response Regulator CtrA Causes Pleiotropic Effects on Gene Expression but Does Not Affect Growth Phase Regulation in Rhodobacter capsulatus SO JOURNAL OF BACTERIOLOGY LA English DT Article ID TANDEM MASS-SPECTRA; CELL-CYCLE CONTROL; RHODOPSEUDOMONAS-CAPSULATA; ALPHA-PROTEOBACTERIA; CAULOBACTER-CRESCENTUS; TRANSFER AGENT; SIGNAL-TRANSDUCTION; SIGMA-FACTOR; NUCLEOTIDE-SEQUENCE; BINDING-SITES AB The purple nonsulfur photosynthetic bacterium Rhodobacter capsulatus has been extensively studied for its metabolic versatility as well as for production of a gene transfer agent called RcGTA. Production of RcGTA is highest in the stationary phase of growth and requires the response regulator protein CtrA. The CtrA protein in Caulobacter crescentus has been thoroughly studied for its role as an essential, master regulator of the cell cycle. Although the CtrA protein in R. capsulatus shares a high degree of sequence similarity with the C. crescentus protein, it is nonessential and clearly plays a different role in this bacterium. We have used transcriptomic and proteomic analyses of wild-type and ctrA mutant cultures to identify the genes dysregulated by the loss of CtrA in R. capsulatus. We have also characterized gene expression differences between the logarithmic and stationary phases of growth. Loss of CtrA has pleiotropic effects, with dysregulation of expression of similar to 6% of genes in the R. capsulatus genome. This includes all flagellar motility genes and a number of other putative regulatory proteins but does not appear to include any genes involved in the cell cycle. Quantitative proteomic data supported 88% of the CtrA transcriptome results. Phylogenetic analysis of CtrA sequences supports the hypothesis of an ancestral ctrA gene within the alphaproteobacteria, with subsequent diversification of function in the major alphaproteobacterial lineages. C1 [Mercer, Ryan G.; Lang, Andrew S.] Mem Univ Newfoundland, Dept Biol, St John, NF A1B 3X9, Canada. [Callister, Stephen J.; Lipton, Mary S.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Pasa-Tolic, Ljiljana] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Strnad, Hynek; Paces, Vaclav] Acad Sci Czech Republic, Dept Genom & Bioinformat, Inst Mol Genet, CZ-14220 Prague 4, Czech Republic. [Beatty, J. Thomas] Univ British Columbia, Dept Microbiol & Immunol, Vancouver, BC V6T 1Z3, Canada. RP Lang, AS (reprint author), Mem Univ Newfoundland, Dept Biol, 232 Elizabeth Ave, St John, NF A1B 3X9, Canada. EM aslang@mun.ca RI Strnad, Hynek/B-7361-2008; OI Strnad, Hynek/0000-0002-0141-8340; Lang, Andrew/0000-0002-4510-7683 FU Natural Sciences and Engineering Research Council (NSERC); Canada Foundation for Innovation; Government of Newfoundland and Labrador; Memorial University; University of British Columbia; Canadian Institutes for Health Research; Killam Research Fellowship; U.S. Department of Energy Office of Biological and Environmental Research [DE-ACO576RLO 1830]; Czech [1M68378050, AVOZ50520514] FX We thank M. Rise and S. Christian for assistance with microarray data analysis.; Research in A.S.L.'s laboratory is supported by grants from Natural Sciences and Engineering Research Council (NSERC), the Canada Foundation for Innovation, and the Industrial Research and Innovation Fund from the Government of Newfoundland and Labrador. R.G.M. is supported in part by a fellowship from Memorial University. Research in J.T.B.'s laboratory is supported by grants from NSERC, the University of British Columbia, and the Canadian Institutes for Health Research, and J.T.B. is a recipient of a Killam Research Fellowship. A portion of the research described in this paper was funded by the Genomes to Life program sponsored by the U.S. Department of Energy Office of Biological and Environmental Research and performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is a multiprogram national laboratory operated by Battelle for the DOE under contract DE-ACO576RLO 1830. H. S. and V. P. were supported by Czech grants 1M68378050 and AVOZ50520514. NR 57 TC 26 Z9 26 U1 4 U2 16 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0021-9193 J9 J BACTERIOL JI J. Bacteriol. PD JUN PY 2010 VL 192 IS 11 BP 2701 EP 2710 DI 10.1128/JB.00160-10 PG 10 WC Microbiology SC Microbiology GA 594PJ UT WOS:000277549300005 PM 20363938 ER PT J AU Ryan, KC Johnson, OE Cabelli, DE Brunold, TC Maroney, MJ AF Ryan, Kelly C. Johnson, Olivia E. Cabelli, Diane E. Brunold, Thomas C. Maroney, Michael J. TI Nickel superoxide dismutase: structural and functional roles of Cys2 and Cys6 SO JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY LA English DT Article DE Superoxide dismutase; X-ray absorption spectroscopy; Differential scanning calorimetry ID CRYSTAL-STRUCTURE; ACTIVE-SITE; REACTION-MECHANISM; ACIREDUCTONE DIOXYGENASE; MONOXIDE DEHYDROGENASE; COMPLEXES; NI; STREPTOMYCES; IRON; REVEALS AB Nickel superoxide dismutase (NiSOD) is unique among the family of superoxide dismutase enzymes in that it coordinates Cys residues (Cys2 and Cys6) to the redox-active metal center and exhibits a hexameric quaternary structure. To assess the role of the Cys residues with respect to the activity of NiSOD, mutations of Cys2 and Cys6 to Ser (C2S-NiSOD, C6S-NiSOD, and C2S/C6S-NiSOD) were carried out. The resulting mutants do not catalyze the disproportionation of superoxide, but retain the hexameric structure found for wild-type NiSOD and bind Ni(II) ions in a 1:1 stoichiometry. X-ray absorption spectroscopic studies of the Cys mutants revealed that the nickel active-site structure for each mutant resembles that of C2S/C6S-NiSOD and demonstrate that mutation of either Cys2 or Cys6 inhibits coordination of the remaining Cys residue. Mutation of one or both Cys residue(s) in NiSOD induces the conversion of the low-spin Ni(II) site in the native enzyme to a high-spin Ni(II) center in the mutants. This result indicates that coordination of both Cys residues is required to generate the native low-spin configurations and maintain catalytic activity. Analysis of the quaternary structure of the Cys mutants by differential scanning calorimetry, mass spectrometry, and size-exclusion chromatography revealed that the Cys ligands, particularly Cys2, are also important for stabilizing the hexameric quaternary structure of the native enzyme. C1 [Ryan, Kelly C.; Maroney, Michael J.] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA. [Johnson, Olivia E.; Brunold, Thomas C.] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA. [Cabelli, Diane E.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Maroney, MJ (reprint author), Univ Massachusetts, Dept Chem, 104 Lederle Grad Res Tower A,710 N Pleasant St, Amherst, MA 01003 USA. EM mmaroney@chemistry.umass.edu FU National Science Foundation [CHE-0809188]; National Institutes of Health [GM 64631, T32 GM008505]; US Department of Energy, Division of Materials Sciences and Division of Chemical Sciences [DE-AC02-98CH10886] FX This work was supported by grants from the National Science Foundation (CHE-0809188 to M.J.M) and the National Institutes of Health (GM 64631 to T. C. B.) and by a National Institutes of Health Chemistry-Biology Interface Training Grant (T32 GM008505 to O.E.J.). The US Department of Energy, Division of Materials Sciences and Division of Chemical Sciences, supported XAS data collection at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory. The National Institutes of Health supports beamline X3B (formerly X9B) at NSLS. Pulse radiolysis studies were carried out at the Center for Radiation Chemical Research, which is funded under contract DE-AC02-98CH10886 with the US Department of Energy. The authors also acknowledge Peter A. Bryngelson for contributing information regarding wild-type NiSOD and for help in mutagenesis, and Robert W. Herbst for assistance in EPR and ESI-MS data collection. NR 60 TC 23 Z9 23 U1 1 U2 14 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0949-8257 J9 J BIOL INORG CHEM JI J. Biol. Inorg. Chem. PD JUN PY 2010 VL 15 IS 5 BP 795 EP 807 DI 10.1007/s00775-010-0645-y PG 13 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 602DR UT WOS:000278119200015 PM 20333421 ER PT J AU Mamontov, E O'Neill, H Zhang, Q AF Mamontov, Eugene O'Neill, Hugh Zhang, Qiu TI Mean-squared atomic displacements in hydrated lysozyme, native and denatured SO JOURNAL OF BIOLOGICAL PHYSICS LA English DT Article DE Biomolecules; Dynamics; Neutron scattering ID PROTEIN SECONDARY STRUCTURE; INELASTIC NEUTRON-SCATTERING; DYNAMICAL TRANSITION; CIRCULAR-DICHROISM; ENZYME-ACTIVITY; FAST FLUCTUATIONS; TRANSFER-RNA; SPECTROSCOPY; SOLVENT; MOTIONS AB We use elastic neutron scattering to demonstrate that a sharp increase in the mean-squared atomic displacements, commonly observed in hydrated proteins above 200 K and often referred to as the dynamical transition, is present in the hydrated state of both native and denatured lysozyme. A direct comparison of the native and denatured protein thus confirms that the presence of the transition in the mean-squared atomic displacements is not specific to biologically functional molecules. C1 [Mamontov, Eugene] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Zhang, Qiu] Oak Ridge Natl Lab, Ctr Struct Mol Biol, Div Chem Sci, Biodeuterat Lab, Oak Ridge, TN 37831 USA. RP Mamontov, E (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, POB 2008, Oak Ridge, TN 37831 USA. EM mamontove@ornl.gov RI Mamontov, Eugene/Q-1003-2015; OI Mamontov, Eugene/0000-0002-5684-2675; O'Neill, Hugh/0000-0003-2966-5527 FU US Department of Energy Basic Energy Sciences; Office of Biological and Environmental Research; Oak Ridge National Laboratory; US DOE [DE-AC05-00OR22725] FX The authors are thankful to K. W. Herwig and C. Hoffmann for critical reading of the manuscript, and K. L. Weiss for useful technical discussions. This work was supported by the US Department of Energy Basic Energy Sciences and the Office of Biological and Environmental Research, using facilities supported by Oak Ridge National Laboratory, and managed by UT-Battelle, LLC, for the US DOE under Contract No. DE-AC05-00OR22725. NR 51 TC 27 Z9 27 U1 0 U2 6 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0092-0606 J9 J BIOL PHYS JI J. Biol. Phys. PD JUN PY 2010 VL 36 IS 3 BP 291 EP 297 DI 10.1007/s10867-009-9184-6 PG 7 WC Biophysics SC Biophysics GA 595VT UT WOS:000277642300005 PM 21629590 ER PT J AU Davis, RR Hobbs, DT Khashaba, R Sehkar, P Seta, FN Messer, RLW Lewis, JB Wataha, JC AF Davis, Ryan R. Hobbs, David T. Khashaba, Rania Sehkar, Poojitha Seta, Francesca N. Messer, Regina L. W. Lewis, Jill B. Wataha, John C. TI Titanate particles as agents to deliver gold compounds to fibroblasts and monocytes SO JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A LA English DT Article DE drug delivery; nanoparticles; arthritis; auranofin; metals ID MONOSODIUM TITANATE; ACTINIDE SEPARATIONS; STRONTIUM; SUBLETHAL AB Titanates are inorganic compounds with high affinity for specific metal ions or metal compounds, including gold. We have previously demonstrated that both monosodium titanate (MST) and amorphous peroxo-titanate (APT) alone do not suppress cellular metabolism of several cell types, and we have shown that MST and APT adsorb and release gold compounds in biological salt solutions. In the current study, we extend this work and show that MST and APT loaded with two gold compounds deliver sufficient levels of these compounds to alter the metabolism of mammalian cells. Fibroblasts (L929) or monocytes (THP1) were exposed to MST and APT loaded with either Au(III) or Auranofin (R) Au(I)-organic compound, for 24-72 h, after which succinate dehydrogenase (SDH) activity of the cells was measured using the MTT method. MST or APT alone did not suppress SDH activity of either cell type. AF and Au(III) alone suppressed SDH activity completely above 2 mu M or 300 mu M, respectively. APT and MST loaded with either gold compound suppressed L929 fibroblast SDH activity by 30-80% after 72 h, but Au(III)-loaded APT was more potent than Pal-loaded APT. Monocyte SDH activity was not affected by any loaded titanate. Our results suggest that titanates could be used for solid phase delivery of metal compounds to affect mammalian cell function of some types of cells. (C) 2009 Wiley Periodicals, Inc.* J Biomed Mater Res 93A: 864-869, 2010 C1 [Wataha, John C.] Univ Washington, Dept Restorat Dent, Sch Dent, Seattle, WA 98197 USA. [Davis, Ryan R.; Khashaba, Rania; Sehkar, Poojitha; Seta, Francesca N.; Messer, Regina L. W.; Lewis, Jill B.] Med Coll Georgia, Dept Oral Biol, Augusta, GA 30912 USA. [Hobbs, David T.] Washington Savannah River Co, Savannah River Natl Lab, Aiken, SC USA. RP Wataha, JC (reprint author), Univ Washington, Dept Restorat Dent, Sch Dent, Box 357456,1959 NE Pacific St, Seattle, WA 98197 USA. EM jwataha@gmail.com FU Dental Research Center at the Medical College of Georgia, Department of Energy at the Savannah River National Laboratory FX Contract grant sponsors: Dental Research Center at the Medical College of Georgia, Department of Energy at the Savannah River National Laboratory (Laboratory Directed Research and Development Program) NR 10 TC 8 Z9 8 U1 0 U2 4 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1549-3296 J9 J BIOMED MATER RES A JI J. Biomed. Mater. Res. Part A PD JUN 1 PY 2010 VL 93A IS 3 BP 864 EP 869 DI 10.1002/jbm.a.32407 PG 6 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 586NF UT WOS:000276916200006 PM 19701910 ER PT J AU Utku, Y Rohatgi, A Yoo, B Kirshenbaum, K Zuckermann, RN Pohl, NL AF Utku, Yeliz Rohatgi, Abhinav Yoo, Barney Kirshenbaum, Kent Zuckermann, Ronald N. Pohl, Nicola L. TI Rapid Multistep Synthesis of a Bioactive Peptidomimetic Oligomer for the Undergraduate Laboratory SO JOURNAL OF CHEMICAL EDUCATION LA English DT Article ID HELICAL PEPTOID MIMICS; AMINO-ACID; DIPEPTIDE; GLYCINES); PEPTIDE C1 [Utku, Yeliz; Rohatgi, Abhinav; Yoo, Barney; Kirshenbaum, Kent] NYU, Dept Chem, New York, NY 10003 USA. [Zuckermann, Ronald N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Biol Nanostruct Facil Mol Foundry, Berkeley, CA 94720 USA. [Pohl, Nicola L.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Kirshenbaum, K (reprint author), NYU, Dept Chem, New York, NY 10003 USA. EM kent@nyu.edu RI Zuckermann, Ronald/A-7606-2014 OI Zuckermann, Ronald/0000-0002-3055-8860 FU NSF [CHE-0645361, DUE-0126958] FX We would like to thank the students of the honors organic lab course at New York University. We gratefully acknowledge the NSF for support through a CAREER Award (CHE-0645361) and a grant for augmenting traditional undergraduate laboratory curricula (DUE-0126958). NR 17 TC 7 Z9 7 U1 1 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0021-9584 J9 J CHEM EDUC JI J. Chem. Educ. PD JUN PY 2010 VL 87 IS 6 BP 637 EP 639 DI 10.1021/ed100202f PG 3 WC Chemistry, Multidisciplinary; Education, Scientific Disciplines SC Chemistry; Education & Educational Research GA 595HH UT WOS:000277600800020 ER PT J AU Yim, TJ Choi, H Zhang, X AF Yim, Tae-Jin Choi, Hyeunseok Zhang, Xiang TI Placement of alkanethiol-capped Au nanoparticles using organic solvents SO JOURNAL OF COLLOID AND INTERFACE SCIENCE LA English DT Article DE Au nanoparticle; Nanoparticle placement; Organic solvent; Pinning ID SELF-ASSEMBLED MONOLAYERS; GOLD NANOPARTICLES; FLOW; DROPLETS; PATTERNS; FORCES; ENERGY AB We report that alkanethiol-capped Au nanoparticles can be linearly placed by toluene with its physical properties as well as its wettability in the presence of the nanoparticles. It is visually confirmed that toluene can be pinned with the aid of the nanoparticles to transport the nanoparticles to pinned contacts and to form linear placements Whether the nanoparticles in various solvents can be linearly placed or not is explained based on the results of evaporating the nanoparticle solutions and the physical properties of each solvent. Further studies on controlled placement of the nanoparticles by manipulating the physical properties of organic solvents or by selecting an organic solvent can lead to applications such as a waveguide and other optoelectronic devices. (C) 2010 Elsevier Inc All rights reserved. C1 [Yim, Tae-Jin; Choi, Hyeunseok; Zhang, Xiang] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr NSEC, Berkeley, CA 94720 USA. [Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Choi, Hyeunseok] KITECH, Mfg Syst R&D Dept, Cheonan Si 331825, Chungnam, South Korea. RP Zhang, X (reprint author), Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr NSEC, 3112 Etcheverry Hall, Berkeley, CA 94720 USA. RI Zhang, Xiang/F-6905-2011 FU NIH Nanomedicine Development Center (Center for Cell Control) [PN2 EY018228]; NSF Nano-scale Science and Engineering Center (NSEC) [DMI-0327077]; Korean Government (MOEHRD) [KRF-2006-352-D00020] FX We thank NIH Nanomedicine Development Center (Center for Cell Control, PN2 EY018228) and NSF Nano-scale Science and Engineering Center (NSEC, DMI-0327077) for support. H.C acknowledges the financial support from the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2006-352-D00020). NR 23 TC 1 Z9 1 U1 0 U2 6 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9797 J9 J COLLOID INTERF SCI JI J. Colloid Interface Sci. PD JUN 1 PY 2010 VL 346 IS 1 BP 17 EP 22 DI 10.1016/j.jcis.2010.02.050 PG 6 WC Chemistry, Physical SC Chemistry GA 589FQ UT WOS:000277132700004 PM 20332051 ER PT J AU Bond, SD Chaudhry, JH Cyr, EC Olson, LN AF Bond, Stephen D. Chaudhry, Jehanzeb Hameed Cyr, Eric C. Olson, Luke N. TI A First-Order System Least-Squares Finite Element Method for the Poisson-Boltzmann Equation SO JOURNAL OF COMPUTATIONAL CHEMISTRY LA English DT Article DE Poisson-Boltzmann; implicit solvent; finite elements; least-squares; adaptive refinement ID PARTIAL-DIFFERENTIAL-EQUATIONS; MOLECULAR ELECTROSTATICS; BIOMOLECULAR ELECTROSTATICS; DISCONTINUOUS COEFFICIENTS; NUMERICAL-SOLUTION; ELLIPTIC PROBLEMS; SOLVENT; COMPUTATION; INTERFACE; FOSLS AB The Poisson-Boltzmann equation is an important tool in modeling solvent in biomolecular systems. In this article. we focus on numerical approximations to the electrostatic potential expressed in the regularized linear Poisson-Boltzmann equation. We expose the flux directly through a first-order system form of the equation. Using this formulation, we propose a system that yields a tractable least-squares finite element formulation and establish theory to support this approach. The least-squares finite element approximation naturally provides an a posteriori error estimator and we present numerical evidence in support of the method. The computational results highlight optimality in the case of adaptive mesh refinement for a variety of molecular configurations. In particular, we show promising performance for the Born ion. Fasciculin I. methanol, and a dipole, which highlights robustness of our approach. (C) 2009 Wiley Periodicals. Inc. J Comput Chem 31: 1625-1635, 2010 C1 [Bond, Stephen D.; Chaudhry, Jehanzeb Hameed; Olson, Luke N.] Univ Illinois, Dept Comp Sci, Urbana, IL 61801 USA. [Cyr, Eric C.] Sandia Natl Labs, Dept Scalable Algorithms, Albuquerque, NM 87185 USA. RP Chaudhry, JH (reprint author), Univ Illinois, Dept Comp Sci, 1304 W Springfield Ave, Urbana, IL 61801 USA. EM jhameed2@illinois.edu FU NSF-CCF [08-30578]; NSF-DMS [07-46676]; University of Illinois; U.S. Department of Energy [DE-AC04-94AL85000] FX Contract/grant sponsor: NSF-CCF: contract/grant number: 08-30578; Contract/grant sponsor: NSF-DMS: contract/grant number: 07-46676; Contract/grant sponsor: University of Illinois CSE Fellowship; Contract/grant sponsor: Sandia is sponsored under U.S. Department of Energy: contract/grant number: DE-AC04-94AL85000 NR 61 TC 15 Z9 16 U1 0 U2 5 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0192-8651 EI 1096-987X J9 J COMPUT CHEM JI J. Comput. Chem. PD JUN PY 2010 VL 31 IS 8 BP 1625 EP 1635 DI 10.1002/jcc.21446 PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA 593TL UT WOS:000277483500007 PM 19908291 ER PT J AU Lipnikov, K Svyatskiy, D Vassilevski, Y AF Lipnikov, K. Svyatskiy, D. Vassilevski, Y. TI A monotone finite volume method for advection-diffusion equations on unstructured polygonal meshes SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Advection-diffusion equation; Finite volume method; Discrete maximum principle; Monotone method; Unstructured mesh; Polygonal mesh ID DISCRETE MAXIMUM PRINCIPLE; TETRAHEDRAL MESHES; CONVECTION; SCHEMES; LIMITERS; GRIDS AB We present a new second-order accurate monotone finite volume (FV) method for the steady-state advection-diffusion equation. The method uses a nonlinear approximation for both diffusive and advective fluxes and guarantees solution non-negativity. The interpolation-free approximation of the diffusive flux uses the nonlinear two-point stencil proposed in Lipnikov [23]. Approximation of the advective flux is based on the second-order upwind method with a specially designed minimal nonlinear correction. The second-order convergence rate and monotonicity are verified with numerical experiments. Published by Elsevier Inc. C1 [Lipnikov, K.; Svyatskiy, D.] Los Alamos Natl Lab, Div Theoret, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA. [Vassilevski, Y.] Russian Acad Sci, Inst Numer Math, Moscow 119333, Russia. RP Svyatskiy, D (reprint author), Los Alamos Natl Lab, Div Theoret, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA. EM lipnikov@lanl.gov; dasvyat@lanl.gov; vasilevs@dodo.inm.ras.ru RI Vassilevski, Yuri/A-6068-2016 FU National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; DOE Office of Science Advanced Scientific Computing Research (ASCR) [LA-UR 09-03209] FX This 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 and the DOE Office of Science Advanced Scientific Computing Research (ASCR) Program in Applied Mathematics LA-UR 09-03209. The authors thank M. Shashkov (LANL) for fruitful discussions on the paper topic.; The authors are grateful to I. Kapyrin, K. Nikitin (INM) and unknown reviewers for useful comments. NR 37 TC 27 Z9 30 U1 0 U2 7 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD JUN 1 PY 2010 VL 229 IS 11 BP 4017 EP 4032 DI 10.1016/j.jcp.2010.01.035 PG 16 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 586PD UT WOS:000276922100002 ER PT J AU Zhang, QH Liu, PLF AF Zhang, Qinghai Liu, Philip L. -F. TI Handling solid-fluid interfaces for viscous flows: Explicit jump approximation vs. ghost cell approaches SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Explicit jump approximation; Ghost cell approach; Viscous flow; Diffusion equation; Heat equation; Jump correction; The immersed interface method; Irregular solid boundary; The polygonal area mapping method; HyPAM ID EMBEDDED BOUNDARY METHOD; TIME-DEPENDENT BOUNDARY; NAVIER-STOKES EQUATIONS; ELLIPTIC-EQUATIONS; DISCONTINUOUS COEFFICIENTS; IRREGULAR DOMAINS; SINGULAR SOURCES; DIFFERENTIAL-EQUATIONS; POISSONS-EQUATION; HEAT-EQUATION AB The ghost cell approaches (GCA) for handling stationary solid boundaries, regular or irregular, are first investigated theoretically and numerically for the diffusion equation with Dirichlet boundary conditions. The main conclusion of this part of investigation is that the approximation for the diffusion term has to be second-order accurate everywhere in order for the numerical solution to be rigorously second-order accurate. Violating this principle, the linear and quadratic GCAs have the following shortcomings: (1) restrictive constraints on grid size when the viscosity is small; (2) susceptibleness to instability of a time-explicit formulation for strongly transient flows; (3) convergence deterioration to zeroth- or first-order for solutions with high-frequency modes. Therefore, the widely-used linear extrapolation for enforcing no-slip boundary conditions should be avoided, even for regular solid boundaries. As a remedy, a simple method based on explicit jump approximation (EJA) is proposed. EJA hinges on the idea that a velocity-derivative jump at the boundary reduces to the value of the velocity-derivative at the fluid side because the velocity of the stationary boundary is zero. Although the time-marching linear system of EJA is not symmetric, it is strictly diagonal dominant with positive diagonal entries. Numerical results show that, over a large range of viscosity and grid sizes, EJA performs much better than GCAs in terms of stability and accuracy. Furthermore, the second-order convergence of EJA does not depend on viscosity and the spectrum of the solution, as those of GCAs do. This paper is written with enough details so that one can reproduce the numerical results. (C) 2010 Elsevier Inc. All rights reserved. C1 [Zhang, Qinghai] Univ Calif Berkeley, Lawrence Berkeley Lab, Appl Numer Algorithms Grp, Berkeley, CA 94720 USA. [Liu, Philip L. -F.] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14853 USA. [Liu, Philip L. -F.] Natl Cent Univ, Inst Hydrol & Ocean Sci, Jhongli, Taiwan. RP Zhang, QH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Appl Numer Algorithms Grp, Berkeley, CA 94720 USA. EM QHZhang@lbl.gov RI Zhang, Qinghai/A-3637-2009; Liu, Philip/E-3619-2013 OI Zhang, Qinghai/0000-0002-3655-4190; FU Humboldt Foundation; Germany NSF; NY Sea Grant Research Institute FX The first author, Qinghai Zhang, would like to thank Phillip Colella for his helpful discussions. The second author, Philip L.F. Liu, would like to acknowledge the support from the Humboldt Foundation, Germany NSF and NY Sea Grant Research Institute during the preparation of this paper. Both authors also thank the referees for their helpful suggestions and comments. NR 30 TC 8 Z9 8 U1 0 U2 5 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD JUN 1 PY 2010 VL 229 IS 11 BP 4225 EP 4246 DI 10.1016/j.jcp.2010.02.007 PG 22 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 586PD UT WOS:000276922100012 ER PT J AU Khajeh-Saeed, A Poole, S Perot, JB AF Khajeh-Saeed, Ali Poole, Stephen Perot, J. Blair TI Acceleration of the Smith-Waterman algorithm using single and multiple graphics processors SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Smith-Waterman; Sequence matching; Parallel scan; GPU; Graphics processor ID SPEED-UP; SEARCHES; IMPLEMENTATION AB Finding regions of similarity between two very long data streams is a computationally intensive problem referred to as sequence alignment. Alignment algorithms must allow for imperfect sequence matching with different starting locations and some gaps and errors between the two data sequences. Perhaps the most well known application of sequence matching is the testing of DNA or protein sequences against genome databases. The Smith-Waterman algorithm is a method for precisely characterizing how well two sequences can be aligned and for determining the optimal alignment of those two sequences. Like many applications in computational science, the Smith-Waterman algorithm is constrained by the memory access speed and can be accelerated significantly by using graphics processors (GPUs) as the compute engine. In this work we show that effective use of the GPU requires a novel reformulation of the Smith-Waterman algorithm. The performance of this new version of the algorithm is demonstrated using the SSCA#1 (Bioinformatics) benchmark running on one GPU and on up to four GPUs executing in parallel. The results indicate that for large problems a single GPU is up to 45 times faster than a GPU for this application, and the parallel implementation shows linear speed up on up to 4 GPUs. (C) 2010 Elsevier Inc. All rights reserved. C1 [Khajeh-Saeed, Ali; Perot, J. Blair] Univ Massachusetts, Amherst, MA 01003 USA. [Poole, Stephen] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. RP Perot, JB (reprint author), Univ Massachusetts, Amherst, MA 01003 USA. EM perot@ecs.umass.edu FU Department of Defense FX This work was supported by the Department of Defense and used resources from the Extreme Scale Systems Center at Oak Ridge National Laboratory. Some of the development work occurred on the NSF Teragrid supercomputer, Lincoln, located at NCSA. NR 21 TC 43 Z9 46 U1 0 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 J9 J COMPUT PHYS JI J. Comput. Phys. PD JUN 1 PY 2010 VL 229 IS 11 BP 4247 EP 4258 DI 10.1016/j.jcp.2010.02.009 PG 12 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 586PD UT WOS:000276922100013 ER PT J AU Srinivasan, G Tartakovsky, DM Dentz, M Viswanathan, H Berkowitz, B Robinson, BA AF Srinivasan, G. Tartakovsky, D. M. Dentz, M. Viswanathan, H. Berkowitz, B. Robinson, B. A. TI Random walk particle tracking simulations of non-Fickian transport in heterogeneous media SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Random walk; Particle tracking; Anomalous transport ID SOLUTE TRANSPORT; ADVECTION-DISPERSION; TIME; EQUATIONS; MECHANISMS; DIFFUSION; BEHAVIOR; FIELDS AB Derivations of continuum nonlocal models of non-Fickian (anomalous) transport require assumptions that might limit their applicability. We present a particle-based algorithm, which obviates the need for many of these assumptions by allowing stochastic processes that represent spatial and temporal random increments to be correlated in space and time, be stationary or non-stationary, and to have arbitrary distributions. The approach treats a particle trajectory as a subordinated stochastic process that is described by a set of Langevin equations, which represent a continuous time random walk (CTRW). Convolution-based particle tracking (CBPT) is used to increase the computational efficiency and accuracy of these particle-based simulations. The combined CTRW-CBPT approach enables one to convert any particle tracking legacy code into a simulator capable of handling non-Fickian transport. (C) 2010 Elsevier Inc. All rights reserved. C1 [Srinivasan, G.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Tartakovsky, D. M.] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA. [Dentz, M.] CSIC, IDAEA, Inst Environm Assessment & Water Res, Barcelona, Spain. [Viswanathan, H.; Robinson, B. A.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. [Berkowitz, B.] Weizmann Inst Sci, Dept Environm Sci & Energy Res, IL-76100 Rehovot, Israel. RP Srinivasan, G (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM gowri@lanl.gov; dmt@ucsd.edu; marco.dentz@idaea.csic.es RI Robinson, Bruce/F-6031-2010; Tartakovsky, Daniel/E-7694-2013; BERKOWITZ, BRIAN/K-1497-2012; Dentz, Marco/C-1076-2015 OI BERKOWITZ, BRIAN/0000-0003-3078-1859; Dentz, Marco/0000-0002-3940-282X FU Los Alamos National Laboratory; DOE Office of Science Advanced Scientific Computing Research (ASCR); Office of Science (BER) [DE-FC02-07ER64324]; EU; French ANR FX This research was performed under the auspices of the Los Alamos National Laboratory. It was partially supported by the DOE Office of Science Advanced Scientific Computing Research (ASCR) program in Applied Mathematical Sciences, and by the Office of Science (BER), Cooperative Agreement No. DE-FC02-07ER64324. MD acknowledges the support of the EU project MUSTANG, the French ANR project COLINER and CIUDEN. NR 50 TC 17 Z9 17 U1 3 U2 24 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD JUN 1 PY 2010 VL 229 IS 11 BP 4304 EP 4314 DI 10.1016/j.jcp.2010.02.014 PG 11 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 586PD UT WOS:000276922100017 ER PT J AU Buntinas, D Malozemoff, AJ Utke, J AF Buntinas, Darius Malozemoff, Alexis J. Utke, Jean TI Multithreaded derivative computation with generated libraries SO JOURNAL OF COMPUTATIONAL SCIENCE LA English DT Article DE Automatic differentiation; Operator overloading; Generated code; Loop unrolling; Multithreaded computation AB The computation of derivatives via automatic differentiation is a valuable technique in many science and engineering applications. While the implementation of automatic differentiation via source transformation yields the highest efficiency results, particularly for gradient computations, the implementation via operator overloading remains a viable alternative for some application contexts. Examples include the computation of higher order derivatives or cases where C++ as the language of choice still proves to be too complicated for the currently available source transformation tools. In this paper, we utilize a code generator to create libraries that overload intrinsics for derivative computation, and discuss approaches to improve the efficiency of the generated code. We first discuss the use of limited loop unrolling, but the main focus of the paper is multithreaded derivative computation, in particular an asynchronous scheme for C++ and a synchronous scheme for Fortran. We present test results obtained with a proof-of-concept implementation. (C) 2010 Elsevier B.V. All rights reserved. C1 [Buntinas, Darius; Utke, Jean] Argonne Natl Lab, Math & Comp Sci Div, MCS, Argonne, IL 60439 USA. [Malozemoff, Alexis J.] McGill Univ, Montreal, PQ H3A 2T5, Canada. [Buntinas, Darius; Utke, Jean] Univ Chicago, Computat Inst, Chicago, IL 60637 USA. RP Utke, J (reprint author), MCS, 240-1156,9700 S Cass Ave, Argonne, IL 60439 USA. EM utke@mcs.anl.gov FU U.S. Department of Energy [DE-AC02-06CH11357] FX We thank Paul Hovland for valuable hints to Alexis Malozemoff during his internship at Argonne in the summer of 2009. This work was supported by the U.S. Department of Energy, under contract DE-AC02-06CH11357. NR 12 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-7503 J9 J COMPUT SCI-NETH JI J. Comput. Sci. PD JUN PY 2010 VL 1 IS 2 BP 89 EP 97 DI 10.1016/j.jocs.2010.03.009 PG 9 WC Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA V30HT UT WOS:000208807800004 ER PT J AU Haranczyk, M Gutowski, M AF Haranczyk, Maciej Gutowski, Maciej TI Combinatorial-computational-chemoinformatics (C-3) approach to finding and analyzing low-energy tautomers SO JOURNAL OF COMPUTER-AIDED MOLECULAR DESIGN LA English DT Article DE Tautomer; Combinatorial approach; Electronic structure methods; Chemoinformatics ID EXCESS ELECTRON-ATTACHMENT; FREE PROTON-TRANSFER; SOLVATION FREE-ENERGIES; ANIONIC COMPLEXES; RARE TAUTOMERS; VALENCE ANIONS; BOUND ANIONS; URACIL; GUANINE; THYMINE AB Finding the most stable tautomer or a set of low-energy tautomers of molecules is critical in many aspects of molecular modelling or virtual screening experiments. Enumeration of low-energy tautomers of neutral molecules in the gas-phase or typical solvents can be performed by applying available organic chemistry knowledge. This kind of enumeration is implemented in a number of software packages and it is relatively reliable. However, in esoteric cases such as charged molecules in uncommon, non-aqueous solvents there is simply not enough available knowledge to make reliable predictions of low energy tautomers. Over the last few years we have been developing an approach to address the latter problem and we successfully applied it to discover the most stable anionic tautomers of nucleic acid bases that might be involved in the process of DNA damage by low-energy electrons and in charge transfer through DNA. The approach involves three steps: (1) combinatorial generation of a library of tautomers, (2) energy-based screening of the library using electronic structure methods, and (3) analysis of the information generated in step (2). In steps 1-3 we employ combinatorial, computational and chemoinformatics techniques, respectively. Therefore, this hybrid approach is named "Combinatorial*Computational*Chemoinformatics", or just abbreviated as C-3 (or C-cube) approach. This article summarizes our developments and most interesting methodological aspects of the C-3 approach. It can serve as an example how to identify the most stable tautomers of molecular systems for which common chemical knowledge had not been sufficient to make definite predictions. C1 [Haranczyk, Maciej] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. [Gutowski, Maciej] Heriot Watt Univ, Chem Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland. RP Haranczyk, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, 1 Cyclotron Rd,Mail Stop 50F-1650, Berkeley, CA 94720 USA. EM mharanczyk@lbl.gov RI Haranczyk, Maciej/A-6380-2014 OI Haranczyk, Maciej/0000-0001-7146-9568 FU U. S. Department of Energy [DE-AC02-05CH11231] FX Authors thank John Holliday and Peter Willett for stimulating discussions that contributed to the development of the C 3 approach. M. H. is a 2008 Seaborg Fellow at Lawrence Berkeley National Laboratory. This research was supported in part (to M. H.) by the U. S. Department of Energy under contract DE-AC02-05CH11231. NR 39 TC 7 Z9 7 U1 0 U2 3 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0920-654X EI 1573-4951 J9 J COMPUT AID MOL DES JI J. Comput.-Aided Mol. Des. PD JUN PY 2010 VL 24 IS 6-7 BP 627 EP 638 DI 10.1007/s10822-010-9344-6 PG 12 WC Biochemistry & Molecular Biology; Biophysics; Computer Science, Interdisciplinary Applications SC Biochemistry & Molecular Biology; Biophysics; Computer Science GA 612JR UT WOS:000278894800014 PM 20361238 ER PT J AU Balasanyan, NR Stepanyan, SG AF Balasanyan, N. R. Stepanyan, S. G. TI Correction of deuteron momentum in "eg3" experiment on CLAS detector SO JOURNAL OF CONTEMPORARY PHYSICS-ARMENIAN ACADEMY OF SCIENCES LA English DT Article DE deuteron; momentum; distribution; correction; scattering angle AB In the deuteron momentum distribution in the experiment on photoproduction on the liquid deuterium target non-typical peaks have been revealed, when the correcting package "elos" was applied for correction, for ionization losses, of the measured momentum of deuteron. In particular, such deviations are explicitly displayed in the inclusive channel of the reaction gamma+d -> d+pi(-)+(pi(+)). On the basis of the exclusive channel of this reaction we realized a new correction of the momentum of scattered deuterons with allowance for the scattering angle. This correction leads to essential improvement of the deuteron momentum distribution. C1 [Balasanyan, N. R.] Yerevan State Univ, Yerevan 375049, Armenia. [Stepanyan, S. G.] Thomas Jefferson Natl Lab, Newport News, VA USA. RP Balasanyan, NR (reprint author), Yerevan State Univ, Yerevan 375049, Armenia. NR 3 TC 0 Z9 0 U1 0 U2 0 PU ALLERTON PRESS INC PI NEW YORK PA 18 WEST 27TH ST, NEW YORK, NY 10001 USA SN 1068-3372 J9 J CONTEMP PHYS-ARME+ JI J. Contemp. Phys.-Armen. Acad. Sci. PD JUN PY 2010 VL 45 IS 3 BP 99 EP 103 DI 10.3103/S1068337210030011 PG 5 WC Physics, Multidisciplinary SC Physics GA 590CW UT WOS:000277202500001 ER PT J AU Pato, M Hooper, D Simet, M AF Pato, Miguel Hooper, Dan Simet, Melanie TI Pinpointing cosmic ray propagation with the AMS-02 experiment SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS LA English DT Article DE cosmic ray theory; cosmic ray experiments ID SPECTRA; NUCLEI; GALAXY AB The Alpha Magnetic Spectrometer (AMS-02), which is scheduled to be deployed onboard the International Space Station later this year, will be capable of measuring the composition and spectra of GeV-TeV cosmic rays with unprecedented precision. In this paper, we study how the projected measurements from AMS-02 of stable secondary-to-primary and unstable ratios (such as boron-to-carbon and beryllium-10-to-beryllium-9) can constrain the models used to describe the propagation of cosmic rays throughout the Milky Way. We find that within the context of fairly simple propagation models, all of the model parameters can be determined with high precision from the projected AMS-02 data. Such measurements are less constraining in more complex scenarios, however, which allow for departures from a power-law form for the diffusion coefficient, for example, or for inhomogeneity or stochasticity in the distribution and chemical abundances of cosmic ray sources. C1 [Pato, Miguel] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy. [Pato, Miguel] Inst Astrophys, F-75014 Paris, France. [Pato, Miguel] Univ Paris 07, F-75205 Paris, France. [Hooper, Dan] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Hooper, Dan; Simet, Melanie] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. RP Pato, M (reprint author), Univ Padua, Dipartimento Fis, Via Marzolo 8, I-35131 Padua, Italy. EM pato@iap.fr; dhooper@fnal.gov; msimet@uchicago.edu RI Simet, Melanie/A-3415-2016 OI Simet, Melanie/0000-0001-8823-8926 FU US Department of Energy [DE-FG02-95ER40896]; NASA [NAG5-10842]; Fundacao para a Ciencia e Tecnologia (Ministerio da Ciencia, Tecnologia e Ensino Superior) FX DH is supported by the US Department of Energy, including grant DE-FG02-95ER40896, and by NASA grant NAG5-10842. MP acknowledges a grant from Fundacao para a Ciencia e Tecnologia (Ministerio da Ciencia, Tecnologia e Ensino Superior) and thanks Gianfranco Bertone. MP also thanks the kind hospitality of the Center for Particle Astrophysics at Fermi National Accelerator Laboratory, where this project was started. All authors wish to thank the anonymous referee for the useful suggestions that helped improving the work. NR 33 TC 17 Z9 17 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1475-7516 J9 J COSMOL ASTROPART P JI J. Cosmol. Astropart. Phys. PD JUN PY 2010 IS 6 AR 022 DI 10.1088/1475-7516/2010/06/022 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 621SU UT WOS:000279604500011 ER PT J AU Lehoucq, RB Von Lilienfeld, OA AF Lehoucq, Richard B. Von Lilienfeld, O. Anatole TI Translation of Walter Noll's "Derivation of the Fundamental Equations of Continuum Thermodynamics from Statistical Mechanics" SO JOURNAL OF ELASTICITY LA English DT Article DE Continuum mechanical; Statistical mechanical AB This article represents a translation of the original paper, "Die Herleitung der Grundgleichungen der Thermomechanik der Kontinua aus der Statistischen Mechanik", which was written by Walter Noll and appeared in the Journal of Rational Mechanics and Analysis 4 (1955), 627-646. In the original paper, Noll addressed and analyzed the seminal paper of Irving & Kirkwood, published five years earlier, on "The statistical mechanical theory of transport processes. IV, The Equations of Hydrodynamics." Noll gave new interpretations and provided a firm setting for ideas advanced by Irving & Kirkwood that clearly and directly related to the basic principles of continuum mechanics. This translation aims to expose the important contribution of Noll to a wider community of researchers at a time when the atomistic modeling of material behavior is being advanced. Noll's use of elementary mathematics to discover physical effects, to explain physical concepts, and to draw conclusions of a physical nature is exhibited. Noll's paper emerged from a report that he presented in a seminar at Indiana University in the summer of 1954. The seminar was organized by Clifford Truesdell, whose inspiration Noll gratefully acknowledged. C1 [Lehoucq, Richard B.] Sandia Natl Labs, Appl Math & Applicat Dept, Albuquerque, NM 87185 USA. [Von Lilienfeld, O. Anatole] Sandia Natl Labs, Multiscale Dynam Mat Modeling Dept, Albuquerque, NM 87185 USA. RP Lehoucq, RB (reprint author), Sandia Natl Labs, Appl Math & Applicat Dept, POB 5800, Albuquerque, NM 87185 USA. EM rblehou@sandia.gov RI von Lilienfeld, O. Anatole/D-8529-2011 FU United States Department of Energy [DE-AC04-94AL85000] FX The first translator would like to thank his co-translator Anatole Von Lilienfeld-Toal for the preliminary translation into English from German. The first translator also thanks Professors Eliot Fried and Roger Fosdick for their interest in this translation and their careful readings, and he also thanks Professor Paolo Podio-Guidugli for comments on the translation. Mistakes in the translation and/or corrections are the responsibility of the two translators. 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 2 TC 18 Z9 18 U1 2 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0374-3535 EI 1573-2681 J9 J ELASTICITY JI J. Elast. PD JUN PY 2010 VL 100 IS 1-2 SI SI BP 5 EP 24 DI 10.1007/s10659-010-9246-9 PG 20 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA 605LL UT WOS:000278349000002 ER PT J AU Hennig, C Skanthakumar, S Soderholm, L AF Hennig, C. Skanthakumar, S. Soderholm, L. TI Double photoexcitation of 2p and 4f electrons in curium SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE Double photoexcitation; X-ray absorption; Curium ID X-RAY-ABSORPTION; MULTIELECTRON EXCITATIONS; REDOX SPECIATION; AQUEOUS-SOLUTION; FINE-STRUCTURE; SPECTRA; COORDINATION; NEPTUNIUM; IONS AB The L(3)-edge X-ray absorption spectrum of the aqua trivalent Cm ion in aqueous solution exhibits a double photoexcitation involving 2p and 4f electrons. The resonance structure of the multielectron excitation reveals a shake-up process at 508.1 +/- 10 eV. The data indicate a monotonic increase of the [2p4f] excitation energy between elements of sixth period (Au, Hg, Pb and Bi) and the early actinides (Th, Pa, U, Np, Pu, Am and Cm). (C) 2010 Elsevier B.V. All rights reserved. C1 [Hennig, C.] Forschungszentrum Dresden Rossendorf, Inst Radiochem, D-01314 Dresden, Germany. [Skanthakumar, S.; Soderholm, L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Hennig, C (reprint author), Forschungszentrum Dresden Rossendorf, Inst Radiochem, D-01314 Dresden, Germany. EM hennig@esrf.fr RI The Rossendorf Beamline at ESRF, ROBL/A-2586-2011; Scheinost, Andreas/D-2275-2010 FU U.S. Department of Energy, OBES [DEAC02-06CH11357] FX The work at Argonne National Laboratory was supported by the U.S. Department of Energy, OBES, under Contract DEAC02-06CH11357. We would like to thank Stephan Weiss for providing the Th(IV) sample. NR 32 TC 4 Z9 4 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0368-2048 J9 J ELECTRON SPECTROSC JI J. Electron Spectrosc. Relat. Phenom. PD JUN PY 2010 VL 180 IS 1-3 BP 17 EP 20 DI 10.1016/j.elspec.2010.03.004 PG 4 WC Spectroscopy SC Spectroscopy GA 621VJ UT WOS:000279612800004 ER PT J AU Honnicke, MG Mazzaro, I Manica, J Benine, E Da Costa, EM Dedavid, BA Cusatis, C Huang, XR AF Hoennicke, M. G. Mazzaro, I. Manica, J. Benine, E. Da Costa, E. M. Dedavid, B. A. Cusatis, C. Huang, X. R. TI Structural Characterization of Doped GaSb Single Crystals by X-ray Topography SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article; Proceedings Paper CT 13th International Conference on Defects - Recognition, Imaging and Physics in Semiconductors (DRIP XIII) CY SEP 13-17, 2009 CL Oglebay, WV SP Minerals, Met & Mat Soc, FEI, Semilab, Quantum Focus, Off Naval Res, Air Force Off Sci Res, Army Res Off DE X-ray imaging; x-ray topography; Lang topography; double-crystal topography ID SPACE-GROWN GASB; DIFFRACTION; DISLOCATIONS AB We characterized GaSb single crystals containing different dopants (Al, Cd, and Te), grown by the Czochralski method, using x-ray topography and high-angular-resolution x-ray diffraction. Lang topography revealed dislocations parallel and perpendicular to the crystal surface. Double-crystal GaSb 333 x-ray topography showed dislocations and vertical stripes that could be associated with circular growth bands. We compared our high-angular- resolution x-ray diffraction measurements (rocking curves) with findings predicted by the dynamical theory of x-ray diffraction. These measurements show that our GaSb single crystals have a relative variation in the lattice parameter (Delta d/d) on the order of 10(-5). This means that they can be used as electronic devices (e.g., detectors) and as x-ray monochromators. C1 [Hoennicke, M. G.; Huang, X. R.] Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA. [Mazzaro, I.; Benine, E.; Cusatis, C.] Univ Fed Parana, LORXI, Dept Fis, BR-80060000 Curitiba, Parana, Brazil. [Manica, J.] Univ Fed Parana, Dept Engn Mecan, BR-80060000 Curitiba, Parana, Brazil. [Da Costa, E. M.; Dedavid, B. A.] PUC RS, Dept Engn Mecan & Mecatron, Porto Alegre, RS, Brazil. RP Honnicke, MG (reprint author), Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA. EM mhonnicke@bnl.gov RI Cusatis, Cesar/N-7559-2014; Dedavid, Berenice/J-9471-2015; Honnicke, Marcelo/I-8624-2012 OI Cusatis, Cesar/0000-0002-1621-3727; Dedavid, Berenice/0000-0001-8679-7951; NR 21 TC 2 Z9 2 U1 0 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD JUN PY 2010 VL 39 IS 6 BP 727 EP 731 DI 10.1007/s11664-010-1154-z PG 5 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 596UW UT WOS:000277712000022 ER PT J AU Zhang, Y Chen, H Choi, G Raghothamachar, B Dudley, M Edgar, JH Grasza, K Tymicki, E Zhang, LH Su, D Zhu, YM AF Zhang, Yu Chen, Hui Choi, Gloria Raghothamachar, Balaji Dudley, Michael Edgar, James H. Grasza, Krzysztof Tymicki, Emil Zhang, Lihua Su, Dong Zhu, Yimei TI Nucleation Mechanism of 6H-SiC Polytype Inclusions Inside 15R-SiC Crystals SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article; Proceedings Paper CT 13th International Conference on Defects - Recognition, Imaging and Physics in Semiconductors (DRIP XIII) CY SEP 13-17, 2009 CL Oglebay, WV SP Minerals, Met & Mat Soc, FEI, Semilab, Quantum Focus, Off Naval Res, Air Force Off Sci Res, Army Res Off DE Polytype inclusion; polytype transformation; screw dislocation; partial dislocation ID SILICON-CARBIDE AB A model is presented for the nucleation mechanism of 6H-SiC polytype inclusions inside 15R-SiC boules. Inhomogeneous densities of screw dislocations lead to uneven growth rates, resulting in complex step overgrowth processes which can partially suppress the Burgers vector of a 15R 1c screw dislocation through the creation of Frank faults and Frank partial dislocations. Combined with stacking shifts induced by the passage of basal plane partial dislocations, it is shown that the partial Burgers vector suppression can leave behind a residual 6H 1c dislocation, which then acts as a nucleus for reproduction of 6H-SiC structure in the 15R-SiC crystal. C1 [Zhang, Yu; Chen, Hui; Choi, Gloria; Raghothamachar, Balaji; Dudley, Michael] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. [Edgar, James H.] Kansas State Univ, Dept Chem Engn, Manhattan, KS 66506 USA. [Grasza, Krzysztof; Tymicki, Emil] Inst Elect Mat Technol, Warsaw, Poland. [Zhang, Lihua; Su, Dong; Zhu, Yimei] Brookhaven Natl Lab, Ctr Funct Mat, Upton, NY 11973 USA. RP Zhang, Y (reprint author), SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. EM mdudley@notes.cc.sunysb.edu RI Su, Dong/A-8233-2013; Zhang, Lihua/F-4502-2014 OI Su, Dong/0000-0002-1921-6683; NR 10 TC 3 Z9 3 U1 0 U2 7 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD JUN PY 2010 VL 39 IS 6 BP 799 EP 804 DI 10.1007/s11664-010-1105-8 PG 6 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 596UW UT WOS:000277712000036 ER PT J AU Oh, H Thomas, RJ AF Oh, HyungSeon Thomas, Robert J. TI Estimation of a Sensitivity-Based Metric for Detecting Market Power SO JOURNAL OF ENERGY ENGINEERING-ASCE LA English DT Article DE Dispatch sensitivity matrix; Market power; Null space; Kuhn-Tucker optimality conditions; Power transfer distribution factor (PTDF) matrix ID ELECTRICITY MARKETS AB The abuse of market power is a potentially serious problem for market designers. Few indices, if any, exist to measure the potential for market power in real time. In this regard, Murillo-Sanchez derived an expression for a dispatch-to-price sensitivity matrix, M. The expression requires information about network topology and parameters, as well as the rules used to operate the market. While computing the matrix is conceptually easy for those with all the market and system information, such as an independent system operator, the method is probably impractical for market participants due to the inaccessibility of much of the information. In this paper, a method for estimating the M matrix by using publically available data are suggested, indicating that any market participant who does the computation will know when conditions permit them to lower or raise prices through decreased/increased bids and/or offers. C1 [Oh, HyungSeon] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Thomas, Robert J.] Cornell Univ, Ithaca, NY 14850 USA. RP Oh, H (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM Hyungseon.Oh@nrel.gov NR 12 TC 2 Z9 2 U1 0 U2 2 PU ASCE-AMER SOC CIVIL ENGINEERS PI RESTON PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA SN 0733-9402 J9 J ENERG ENG-ASCE JI J. Energy Eng.-ASCE PD JUN PY 2010 VL 136 IS 2 BP 32 EP 41 DI 10.1061/(ASCE)EY.1943-7897.0000019 PG 10 WC Energy & Fuels; Engineering, Civil SC Energy & Fuels; Engineering GA 597GU UT WOS:000277745500002 ER EF