FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Pool, VL Klem, MT Chorney, CL Arenholz, EA Idzerda, YU AF Pool, V. L. Klem, M. T. Chorney, C. L. Arenholz, E. A. Idzerda, Y. U. TI Enhanced magnetism of Fe3O4 nanoparticles with Ga doping SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 55th Annual Conference on Magnetism and Magnetic Materials CY NOV, 2010 CL Atlanta, GA ID GAMMA-FE2O3 NANOPARTICLES; CATALYSTS; PROPANE; SURFACE AB Magnetic (GaxFe1-x)(3)O-4 nanoparticles with 5%-33% gallium doping (x = 0.05-0.33) were measured using x-ray absorption spectroscopy and x-ray magnetic circular dichroism to determine that the Ga dopant is substituting for Fe3+ as Ga3+ in the tetrahedral A-site of the spinel structure, resulting in an overall increase in the total moment of the material. Frequency-dependent alternating-current magnetic susceptibility measurements showed these particles to be weakly interacting with a reduction of the cubic anisotropy energy term with Ga concentration. The element-specific dichroism spectra show that the average Fe moment is observed to increase with Ga concentration, a result consistent with the replacement of A-site Fe by Ga. (C) 2011 American Institute of Physics. [doi:10.1063/1.3562196] C1 [Pool, V. L.; Idzerda, Y. U.] Montana State Univ, Dept Phys, Bozeman, MT 59715 USA. [Klem, M. T.; Chorney, C. L.] Montana Tech Univ, Dept Chem & Geochem, Butte, MT 59701 USA. [Klem, M. T.; Chorney, C. L.] Montana Tech Univ, Ctr Adv Supramol & Nano Syst, Butte, MT 59715 USA. [Arenholz, E. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Pool, VL (reprint author), Montana State Univ, Dept Phys, Bozeman, MT 59715 USA. EM pool@physics.montana.edu NR 15 TC 7 Z9 7 U1 0 U2 13 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 APR 1 PY 2011 VL 109 IS 7 AR 07B529 DI 10.1063/1.3562196 PG 3 WC Physics, Applied SC Physics GA 755PY UT WOS:000289949000387 ER PT J AU Rong, CB Zhang, Y Poudyal, N Wang, DP Kramer, MJ Liu, JP AF Rong, Chuanbing Zhang, Ying Poudyal, Narayan Wang, Dapeng Kramer, M. J. Liu, J. Ping TI Bulk SmCo5/alpha-Fe nanocomposite permanent magnets fabricated by mould-free Joule-heating compaction SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 55th Annual Conference on Magnetism and Magnetic Materials CY NOV, 2010 CL Atlanta, GA AB Bulk SmCo5/alpha-Fe nanocomposite magnets have been prepared using a Joule-heating compaction technique. Nearly fully dense bulk magnets are obtained by compacting the milled powders under a pressure of 2 GPa at temperatures above 400 degrees C. Structural analysis shows that the grain size of both the SmCo5 and the alpha-Fe phases is in the range of 10 to 15 nm when the compaction temperature is lower than 500 degrees C, which ensures effective interphase exchange coupling. A further increase in compaction temperature leads to significant grain growth and deterioration of magnetic properties. A maximum energy product of about 18.5 MGOe was obtained in the bulk SmCo5/alpha-Fe nanocomposite magnets, which is 90% higher than that of the single-phase counterpart prepared under the same conditions. (c) 2011 American Institute of Physics. [doi:10.1063/1.3563098] C1 [Rong, Chuanbing; Zhang, Ying; Poudyal, Narayan; Wang, Dapeng; Liu, J. Ping] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. [Zhang, Ying; Kramer, M. J.] Iowa State Univ, Div Mat Sci & Engn, Ames Lab, USDOE, Ames, IA 50011 USA. RP Rong, CB (reprint author), Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA. EM crong@uta.edu; pliu@uta.edu NR 16 TC 13 Z9 13 U1 3 U2 13 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 APR 1 PY 2011 VL 109 IS 7 AR 07A735 DI 10.1063/1.3563098 PG 3 WC Physics, Applied SC Physics GA 755PY UT WOS:000289949000253 ER PT J AU Smith, R Chung, PS Steckel, JA Jhon, MS Biegler, LT AF Smith, Robert Chung, Pil Seung Steckel, Janice A. Jhon, Myung S. Biegler, Lorenz T. TI Force field parameter estimation of functional perfluoropolyether lubricants SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 55th Annual Conference on Magnetism and Magnetic Materials CY NOV, 2010 CL Atlanta, GA ID FILMS AB The head disk interface in a hard disk drive can be considered to be one of the hierarchical multiscale systems, which require the hybridization of multiscale modeling methods with coarse-graining procedure. However, the fundamental force field parameters are required to enable the coarse-graining procedure from atomistic/molecular scale to mesoscale models. In this paper, we investigate beyond molecular level and perform ab initio calculations to obtain the force field parameters. Intramolecular force field parameters for Zdol and Ztetraol were evaluated with truncated PFPE molecules to allow for feasible quantum calculations while still maintaining the characteristic chemical structure of the end groups. Using the harmonic approximation to the bond and angle potentials, the parameters were derived from the Hessian matrix, and the dihedral force constants are fit to the torsional energy profiles generated by a series of constrained molecular geometry optimization. (C) 2011 American Institute of Physics. [doi:10.1063/1.3556700] C1 [Smith, Robert; Chung, Pil Seung; Jhon, Myung S.; Biegler, Lorenz T.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Smith, Robert; Chung, Pil Seung; Jhon, Myung S.; Biegler, Lorenz T.] Carnegie Mellon Univ, Ctr Data Storage Syst, Pittsburgh, PA 15213 USA. [Steckel, Janice A.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Jhon, Myung S.] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon, South Korea. RP Jhon, MS (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. EM mj3a@andrew.cmu.edu NR 7 TC 7 Z9 7 U1 0 U2 23 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2011 VL 109 IS 7 AR 07B728 DI 10.1063/1.3556700 PG 3 WC Physics, Applied SC Physics GA 755PY UT WOS:000289949000422 ER PT J AU Wei, X Le Roy, D Skomski, R Li, XZ Sun, Z Shield, JE Kramer, MJ Sellmyer, DJ AF Wei, X. Le Roy, D. Skomski, R. Li, X. Z. Sun, Z. Shield, J. E. Kramer, M. J. Sellmyer, D. J. TI Structure and magnetism of MnAu nanoclusters SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 55th Annual Conference on Magnetism and Magnetic Materials CY NOV, 2010 CL Atlanta, GA ID SHELL NANOPARTICLES; NEEL TEMPERATURE; TRANSITION; AU; ANOMALIES AB Equiatomic MnAu clusters with average sizes of 4 and 10 nm are produced by inert-gas condensation. As-produced clusters are used to form both dense cluster films and films with clusters embedded in a W matrix with a cluster volume fraction of 25%. Both structure and magnetism are size-dependent. Structural analysis of the 10 nm clusters indicate a distorted tetragonal body-centered cubic structure with lattice parameters a = 0.315 and c = 0.329 nm. The 4 nm clusters have a partially ordered tetragonal L1(0) structure with lattice parameters a = 0.410 nm and c = 0.395 nm. Magnetic properties of the clusters show evidence at low temperatures of mixed ferromagnetic and antiferromagnetic interactions and ordering as well as paramagnetic spins. Saturation moments are as large as 0.54 mu(B) per average Mn atom. The results are compared with earlier theoretical calculations on bulk MnAu. (C) 2011 American Institute of Physics. [doi:10.1063/1.3559502] C1 [Wei, X.; Le Roy, D.; Skomski, R.; Sellmyer, D. J.] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA. [Shield, J. E.] Univ Nebraska, Dept Mech Engn, Lincoln, NE 68588 USA. [Wei, X.; Le Roy, D.; Skomski, R.; Li, X. Z.; Sun, Z.; Shield, J. E.; Sellmyer, D. J.] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA. [Kramer, M. J.] Ames Lab, Ames, IA 50011 USA. RP Wei, X (reprint author), Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA. EM sunshine@huskers.unl.edu RI Wei , Xiaohui/H-8746-2012 NR 19 TC 2 Z9 2 U1 0 U2 12 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2011 VL 109 IS 7 AR 07B523 DI 10.1063/1.3559502 PG 3 WC Physics, Applied SC Physics GA 755PY UT WOS:000289949000381 ER PT J AU Zhong, XC Zou, M Zhang, H Liu, ZW Zeng, DC Gschneidner, KA Pecharsky, VK AF Zhong, X. C. Zou, M. Zhang, H. Liu, Z. W. Zeng, D. C. Gschneidner, K. A., Jr. Pecharsky, V. K. TI Crystal structure and magnetic properties of R5Sn4 alloys, where R is Tb, Dy, Ho, and Er SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 55th Annual Conference on Magnetism and Magnetic Materials CY NOV, 2010 CL Atlanta, GA AB Crystal structure and magnetic properties of R5Sn4 alloys with R = Tb, Dy, Ho, and Er have been studied. R5Sn4, R11Sn10, and R5Sn3 phases coexist in the annealed alloys and the content of 11:10 and 5:3 phases varies between 9 and 17 wt.%. The R5Sn4 major phase has Sm5Ge4-type orthorhombic structure with space group Pnma. Tb5Sn4 has a complex magnetic structure, spin re-orientation and ferrimagnetic-paramagnetic phase transitions occur at similar to 54 and similar to 84 K, respectively. For Dy5Sn4, Ho5Sn4, and Er5Sn4, the antiferromagnetic-paramagnetic phase transitions occur at about 22, 15, and 8 K, respectively. The magnetic entropy changes (-Delta S-M) of all alloys are negative at low temperature and changes to positive at higher temperatures, which could be attributed to the change of magnetic states. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549562] C1 [Zhong, X. C.; Liu, Z. W.; Zeng, D. C.] S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China. [Zhong, X. C.; Zou, M.; Zhang, H.; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Zhang, H.] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. RP Zhong, XC (reprint author), S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China. EM xczhong@scut.edu.cn RI Liu, Zhongwu/D-8015-2012 OI Liu, Zhongwu/0000-0002-2560-6282 NR 14 TC 0 Z9 0 U1 0 U2 17 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2011 VL 109 IS 7 AR 07A917 DI 10.1063/1.3549562 PG 3 WC Physics, Applied SC Physics GA 755PY UT WOS:000289949000301 ER PT J AU Rauscher, SA Kucharski, F Enfield, DB AF Rauscher, Sara A. Kucharski, Fred Enfield, David B. TI The Role of Regional SST Warming Variations in the Drying of Meso-America in Future Climate Projections SO JOURNAL OF CLIMATE LA English DT Article ID TROPICAL TROPOSPHERIC TEMPERATURE; NORTH-ATLANTIC OSCILLATION; NINO SOUTHERN-OSCILLATION; LOW-LEVEL JET; EL-NINO; INTERANNUAL VARIABILITY; MONTHLY PRECIPITATION; HURRICANE FREQUENCY; CARIBBEAN RAINFALL; WESTERN-HEMISPHERE AB This paper addresses several hypotheses designed to explain why AOGCM simulations of future climate in the third phase of the Coupled Model Intercomparison Project (CMIP3) feature an intensified reduction of precipitation over the Meso-America (MA) region. While the drying is consistent with an amplification of the subtropical high pressure cells and an equatorward contraction of convective regions clue to the "upped ante" for convection in a warmer atmosphere, the physical mechanisms behind the intensity and robustness of the MA drying signal have not been fully explored. Regional variations in sea surface temperature (SST) warming may play a role. First, SSTs over the tropical North Atlantic (TNA) do not warm as much as the surrounding ocean. The troposphere senses a TNA that is cooler than the tropical Pacific, potentially exciting a Gill-type response, increasing the strength of the North Atlantic subtropical high. Second, the warm ENSO-like state simulated in the eastern tropical Pacific could decrease precipitation over MA, as warm ENSO events are associated with drying over MA. The authors use the International Centre for Theoretical Physics (ICTP) AGCM to investigate the effects of these regional SST warming variations on the projected drying over MA. First, the change of SSTs [Special Report on Emissions Scenarios (SRES) A1B's Twentieth-Century Climate in Coupled Model (A1B-20C)] in the ensemble average of the CMIP3 models is applied to determine if the ICTP AGCM can replicate the future drying. Then the effects of 1) removing the reduced warming over the TNA, 2) removing the warm ENSO-event-like pattern in the eastern tropical Pacific, and 3) applying uniform SST warming throughout the tropics are tested. The ICTP AGCM can reproduce the general pattern and amount of precipitation over MA. Simulations in which the CMIP3 A1B-20C ensemble-average SSTs are added to climatological SSTs show drying of more than 20% over the MA region, similar to the CMIP3 ensemble average. Replacing the relatively cooler SSTs over the TNA excites a Gill response consistent with an off-equatorial heating anomaly, showing that the TNA relative cooling is responsible for about 16% (31%) of the drying in late spring (early summer). The warm ENSO-like SST pattern over the eastern Pacific also affects precipitation over the MA region, with changes of 19% and 31% in March-June (MMJ) and June-August (JJA), respectively. This work highlights the importance of understanding even robust signals in the CMIP3 future scenario simulations, and should aid in the design and analysis of future climate change studies over the region. C1 [Rauscher, Sara A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Kucharski, Fred] Abdus Salam Int Ctr Theoret Phys, Earth Syst Phys Sect, Trieste, Italy. [Enfield, David B.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Cooperat Inst Marine & Atmospher Studies, Miami, FL 33149 USA. RP Rauscher, SA (reprint author), Los Alamos Natl Lab, T-3 Fluid Dynam,MS B216, Los Alamos, NM 87545 USA. EM rauscher@lanl.gov RI Enfield, David/I-2112-2013 OI Enfield, David/0000-0001-8107-5079 FU U.S. Department of Energy; European Commission [GOCE-CT-2003-505539] FX SR gratefully acknowledges the support of the U.S. Department of Energy through the LANL/LDRD Program. FK is supported by the ENSEMBLES project, funded by the European Commission's Sixth Framework Programme (Contract GOCE-CT-2003-505539). We acknowledge the modeling groups for providing their data for analysis: the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for collecting and archiving the model output and the JSC/CLIVAR Working Group on Coupled Modelling (WGCM) for organizing the model data analysis activity. The multimodel data archive is supported by the Office of Science, U.S. Department of Energy. We thank Dr. Xunqiang Bi for downloading and processing some of the data used in this work. We thank three anonymous reviewers, whose comments greatly helped to improve the quality and clarity of this paper. NR 62 TC 26 Z9 28 U1 0 U2 9 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0894-8755 EI 1520-0442 J9 J CLIMATE JI J. Clim. PD APR 1 PY 2011 VL 24 IS 7 BP 2003 EP 2016 DI 10.1175/2010JCLI3536.1 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 757BG UT WOS:000290058300010 ER PT J AU Hartmann, T Alaniz, A Poineau, F Weck, PF Valdez, JA Tang, M Jarvinen, GD Czerwinski, KR Sickafus, KE AF Hartmann, T. Alaniz, A. Poineau, F. Weck, P. F. Valdez, J. A. Tang, M. Jarvinen, G. D. Czerwinski, K. R. Sickafus, K. E. TI Structure studies on lanthanide technetium pyrochlores as prospective host phases to immobilize (99)technetium and fission lanthanides from effluents of reprocessed used nuclear fuels SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID CRYSTAL-STRUCTURE; BONDING TRENDS; OXIDES AB We report here results of a systematic investigation regarding the incorporation of Tc-99 into pyrochlore oxide structures, Ln(2)Tc(2)O(7), where Ln represents trivalent lanthanide Ln(3+) cations, while Tc-99 is a tetravalent. Tc4+, metal cation. In this study, we used the following Ln cations: Pr, Nd, Sm, Gd and Lu. The goal in this preliminary study was to characterize and quantify the range of stability of the lanthanum technetium pyrochlore oxide phase. Powder X-ray diffraction (XRD) and Rietveld analysis was used to characterize the crystalline phase content, while scanning electron microscopy (SEM) was used to characterize the microstructure and homogeneity of the Ln-Tc pyrochlore specimens. All of the pyrochlore samples exhibited good crystallinity and their lattice parameters could be refined with remarkable accuracy. Low refinement residuals (R-Bragg) of 1.1-3.1% were achieved. The refined, cubic lattice parameters ranged from 1.0447156(83) nm for Pr2Tc2O7 to 1.013777(22) nm for Lu2Tc2O7, with a linear trend relative to the Ln(3+) ionic radius. We also demonstrated here the successful synthesis of Nd2Tc2O7, using a simple, scalable synthesis route. (C) 2011 Elsevier B.V. All rights reserved. C1 [Hartmann, T.; Weck, P. F.] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89154 USA. [Alaniz, A.] Univ Nevada, Dept Mech Engn, Las Vegas, NV 89154 USA. [Poineau, F.; Czerwinski, K. R.] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. [Valdez, J. A.; Tang, M.; Sickafus, K. E.] Los Alamos Natl Lab, Div Mat Sci, Los Alamos, NM 87545 USA. [Jarvinen, G. D.] Los Alamos Natl Lab, Seaborg Inst, Stockpile Mfg & Support Directorate, Los Alamos, NM 87545 USA. RP Hartmann, T (reprint author), Univ Nevada, Harry Reid Ctr Environm Studies, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA. EM thomas.hartmann@unlv.edu OI , Philippe/0000-0002-7610-2893 FU US Department of Energy, Office of Nuclear Energy (DOE-NE) [DE-AC52-06NA25396]; Los Alamos National Laboratory [76399-001-09]; DOE-NE at Los Alamos National Laboratory FX This project was funded under the auspices of the US Department of Energy, Office of Nuclear Energy (DOE-NE), cooperate Agreement No. DE-AC52-06NA25396. The funding of this research was provided through the subcontract No. 76399-001-09 with Los Alamos National Laboratory. Valdez, Tang, Jarvinen and Sickafus were sponsored by a DOE-NE program at Los Alamos National Laboratory on advanced waste forms for fission products. We also thank the kind efforts of the UNLV Radiochemistry radiation safety team. NR 19 TC 11 Z9 11 U1 1 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD APR PY 2011 VL 411 IS 1-3 BP 60 EP 71 DI 10.1016/j.jnucmat.2011.01.033 PG 12 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 757GL UT WOS:000290073400007 ER PT J AU King, WE Robel, M Gilmer, GH AF King, Wayne E. Robel, Martin Gilmer, George H. TI The potential to use fission gas release experiments to measure lattice and grain boundary diffusion in metallic fuels SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID URANIUM METAL; XE-133 GAS; CONSTANT VOLUME; AIR; TEMPERATURE; IRRADIATION AB We have applied a model for lattice and grain boundary diffusion in polycrystalline materials to assess the potential for the use of fission gas release experiments to measure the lattice and grain boundary diffusion coefficients in metallic nuclear fuel materials. Our assessment is that, assuming that grain boundary diffusion in metallic fuels is similar to that in other metals, it is reasonable to expect that lattice diffusion coefficients can be determined from short time gas release experiments and the product of the grain boundary diffusion coefficient, the segregation factor, and the boundary width can be extracted from gas release experiments at longer times. Under the same assumption, activation energies can be deduced from the temperature dependence of the measured diffusivities. (C) 2011 Elsevier B.V.. All rights reserved. C1 [King, Wayne E.; Robel, Martin; Gilmer, George H.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. RP King, WE (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, POB 808,L-353, Livermore, CA 94551 USA. EM weking@llnl.gov FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors are grateful to Georges Martin (formerly of CEA-Saclay, France), Yuri Mishin (George Mason University), Donald Olander (University of California at Berkeley), Jeffrey Rest (Argonne National Laboratory), and Carol Velsko (Lawrence Livermore National Laboratory), for critically reading and commenting on this manuscript. Important technical input from Ken Moody (Lawrence Livermore National Laboratory) is gratefully acknowledged. This work performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 26 TC 3 Z9 3 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD APR PY 2011 VL 411 IS 1-3 BP 97 EP 111 DI 10.1016/j.jnucmat.2011.01.037 PG 15 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 757GL UT WOS:000290073400011 ER PT J AU Gan, J Keiser, DD Miller, BD Wachs, DM Allen, TR Kirk, M Rest, J AF Gan, J. Keiser, D. D., Jr. Miller, B. D. Wachs, D. M. Allen, T. R. Kirk, M. Rest, J. TI Microstructure of RERTR DU-alloys irradiated with krypton ions up to 100 dpa SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID DISPERSION FUEL; BEHAVIOR; MATRIX; PLATE; MODEL AB The radiation stability of the interaction product formed at the fuel-matrix interface of research reactor dispersion fuels, under fission-product bombardment, has a strong impact on fuel performance. Three depleted uranium alloys were cast that consisted of the following five phases to be investigated: U(Si, Al)(3), (U, Mo)(Si, Al)(3), UMo(2)Al(20), U(6)Mo(4)Al(43), and UAl(4). Irradiation of transmission electron microscopy (TEM) disc samples with 500-key Kr ions at 200 degrees C to doses up to similar to 100 displacements per atom (dpa) were conducted using a 300-key electron microscope equipped with an ion accelerator. TEM results show that the U(Si, Al)(3) and UAl(4) phases remain crystalline at 100 dpa without forming voids. The (U, Mo)(Si, Al)(3) and UMo(2)Al(20) phases become amorphous at 1 and 2 dpa, respectively, and show no evidence of voids at 100 dpa. The U(6)Mo(4)Al(43) phase goes to amorphous at less than 1 and similar to 2 dpa and reveals high density voids at 100 dpa. (C) 2011 Published by Elsevier B.V. C1 [Gan, J.; Keiser, D. D., Jr.; Miller, B. D.; Wachs, D. M.] Idaho Natl Lab, Nucl Fuels & Mat Div, Idaho Falls, ID 83415 USA. [Allen, T. R.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA. [Kirk, M.; Rest, J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Keiser, DD (reprint author), Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA. EM Dennis.Keiser@inl.gov OI Allen, Todd/0000-0002-2372-7259 FU US Department of Energy (DOE); DOE Idaho Operations Office [DE-AC07-05ID14517] FX The authors would like to express their gratitude to Pete M. Baldo and Edward A. Ryan at the Argonne National Laboratory IVEM facility for the Kr ion irradiation. This work was supported by the US Department of Energy (DOE) to the RERTR program at Idaho National Laboratory, operated by Battelle Energy Alliance, LLC, under DOE Idaho Operations Office Contract DE-AC07-05ID14517. Accordingly, the US Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes. NR 29 TC 13 Z9 13 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD APR PY 2011 VL 411 IS 1-3 BP 174 EP 180 DI 10.1016/j.jnucmat.2011.01.121 PG 7 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 757GL UT WOS:000290073400021 ER PT J AU Palmer, DA Benezeth, P Xiao, CB Wesolowski, DJ Anovitz, LM AF Palmer, Donald A. Benezeth, Pascale Xiao, Caibin Wesolowski, David J. Anovitz, Lawrence M. TI Solubility Measurements of Crystalline NiO in Aqueous Solution as a Function of Temperature and pH SO JOURNAL OF SOLUTION CHEMISTRY LA English DT Article DE Nickel oxide; Bunsenite; Ni(II); Solubility; Thermodynamics; Hydrolysis; Aqueous solutions; Temperature; pH ID THERMODYNAMIC PROPERTIES; ELEVATED-TEMPERATURES; NICKEL-OXIDE; ZINC-OXIDE; WATER; HYDROLYSIS; HYDROXIDE; BOEHMITE; KINETICS; IONS AB Results of solubility experiments involving crystalline nickel oxide (bunsenite) in aqueous solutions are reported as functions of temperature (0 to 350 degrees C) and pH at pressures slightly exceeding (with one exception) saturation vapor pressure. These experiments were carried out in either flow-through reactors or a hydrogen-electrode concentration cell for mildly acidic to near neutral pH solutions. The results were treated successfully with a thermodynamic model incorporating only the unhydrolyzed aqueous nickel species (viz., Ni(2+)) and the neutrally charged hydrolyzed species (viz., Ni(OH(2)(0)). The thermodynamic quantities obtained at 25 degrees C and infinite dilution are, with 2 sigma uncertainties: log10 K(s0)(0) = (12.40 +/- 0.29), Delta(r)G(m)(0) = -(70.8 +/- 1.7) kJ.mol(-1); Delta(r)H(m)(0) = -(105.6 +/- 1.3) kJ.mol(-1); Delta(r)s(m)(0) = -(116.6 +/- 3.2) J.K(-1).mol(-1); Delta(r)C(p,m)(0) = (0 +/- 13) J.K(-1).mol(-1); and log(10) K(s2)(0) = -(8.76 +/- 0.15); Delta(r)G(m)(0) = (50.0 +/- 1.7) kJ.mol(-1); Delta(r)H(m)(0) = (17.7 +/- 1.7) kJ.mol(-1); Delta(r)s(m)(0) = -(108 +/- 7) J.K(-1).mol(-1); Delta(r)C(p,m)(0) = -(108 +/- 3) J.K(-1).mol(-1). These results are internally consistent, but the latter set differs from those gleaned from previous studies recorded in the literature. The corresponding thermodynamic quantities for the formation of Ni(2+) and Ni (OH)(0)(2) are also estimated. Moreover, the Ni(OH)(-)(3) anion was never observed, even in relatively strong basic solutions (m(OH)- = 0.1 mol.kg(-1)), contrary to the conclusions drawn from all but one previous study. C1 [Palmer, Donald A.; Wesolowski, David J.; Anovitz, Lawrence M.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Benezeth, Pascale] Univ Toulouse, CNRS, UMR 5563, IRD, F-31400 Toulouse, France. [Xiao, Caibin] Barclay Water Management Inc, Watertown, MA 02472 USA. RP Palmer, DA (reprint author), Oak Ridge Natl Lab, Div Chem Sci, POB 2008, Oak Ridge, TN 37831 USA. EM Solution_Chemistry@comcast.net RI BENEZETH, Pascale/H-7969-2014; Anovitz, Lawrence/P-3144-2016 OI BENEZETH, Pascale/0000-0002-1841-2383; Anovitz, Lawrence/0000-0002-2609-8750 FU U.S. Department of Energy under the NEPO initiative; EPRI, Inc.; Palo Alto, California FX All of the experimental work was carried out in the Chemical Sciences Division of ORNL under sponsorship of the U.S. Department of Energy under the NEPO initiative in collaboration with EPRI, Inc., Palo Alto, California with project managers Paul Frattini and Keith Frazzetti. NR 32 TC 14 Z9 14 U1 2 U2 27 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0095-9782 J9 J SOLUTION CHEM JI J. Solut. Chem. PD APR PY 2011 VL 40 IS 4 BP 680 EP 702 DI 10.1007/s10953-011-9670-x PG 23 WC Chemistry, Physical SC Chemistry GA 754JN UT WOS:000289851000009 ER PT J AU Brovelli, S Schaller, RD Crooker, SA Garcia-Santamaria, F Chen, Y Viswanatha, R Hollingsworth, JA Htoon, H Klimov, VI AF Brovelli, S. Schaller, R. D. Crooker, S. A. Garcia-Santamaria, F. Chen, Y. Viswanatha, R. Hollingsworth, J. A. Htoon, H. Klimov, V. I. TI Nano-engineered electron-hole exchange interaction controls exciton dynamics in core-shell semiconductor nanocrystals SO NATURE COMMUNICATIONS LA English DT Article ID INVERTED CORE/SHELL NANOCRYSTALS; CDSE QUANTUM DOTS; DIELECTRIC CONFINEMENT; AUGER RECOMBINATION; DARK-EXCITON; LUMINESCENCE; BLINKING; SUPPRESSION; REGIMES; ENERGY AB A strong electron-hole exchange interaction (EI) in semiconductor nanocrystals (NCs) gives rise to a large (up to tens of meV) splitting between optically active ('bright') and optically passive ('dark') excitons. This dark-bright splitting has a significant effect on the optical properties of band-edge excitons and leads to a pronounced temperature and magnetic field dependence of radiative decay. Here we demonstrate a nanoengineering-based approach that provides control over EI while maintaining nearly constant emission energy. We show that the dark-bright splitting can be widely tuned by controlling the electron-hole spatial overlap in core-shell CdSe/CdS NCs with a variable shell width. In thick-shell samples, the EI energy reduces to <250 mu eV, which yields a material that emits with a nearly constant rate over temperatures from 1.5 to 300 K and magnetic fields up to 7 T. The EI-manipulation strategies demonstrated here are general and can be applied to other nanostructures with variable electron-hole overlap. C1 [Brovelli, S.; Schaller, R. D.; Garcia-Santamaria, F.; Chen, Y.; Viswanatha, R.; Hollingsworth, J. A.; Htoon, H.; Klimov, V. I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Schaller, R. D.; Htoon, H.; Klimov, V. I.] Los Alamos Natl Lab, Ctr Adv Solar Photophys, Los Alamos, NM 87545 USA. [Crooker, S. A.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. [Hollingsworth, J. A.; Htoon, H.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM klimov@lanl.gov OI Klimov, Victor/0000-0003-1158-3179; Htoon, Han/0000-0003-3696-2896 FU LANL; Chemical Sciences, Biosciences and Geosciences Division of the Office of Basic Energy Sciences (BES), Office of Science, US DOE; Office of BES, Office of Science, US DOE [2009LANL1096] FX S.B. is supported by the LANL Laboratory Directed Research and Development (LDRD) Program. V. I. K., R. D. S., S. A. C., F.G.-S. and R. V. acknowledge support by the Chemical Sciences, Biosciences and Geosciences Division of the Office of Basic Energy Sciences (BES), Office of Science, US DOE. J.A.H. and H. H. are partially supported by a Single-Investigator Small-Group Research award (2009LANL1096) funded by the Office of BES, Office of Science, US DOE. This work was conducted in part in the Center for Integrated Nanotechnologies jointly operated by Los Alamos and Sandia National Laboratories for the US DOE. NR 37 TC 117 Z9 117 U1 4 U2 90 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD APR PY 2011 VL 2 AR 280 DI 10.1038/ncomms1281 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 756AN UT WOS:000289983800018 PM 21505436 ER PT J AU Morenzoni, E Wojek, BM Suter, A Prokscha, T Logvenov, G Bozovic, I AF Morenzoni, Elvezio Wojek, Bastian M. Suter, Andreas Prokscha, Thomas Logvenov, Gennady Bozovic, Ivan TI The Meissner effect in a strongly underdoped cuprate above its critical temperature SO NATURE COMMUNICATIONS LA English DT Article ID MUON SPIN ROTATION; POSITIVE MUONS; T-C; SUPERCONDUCTIVITY; ANTIFERROMAGNETISM; LA2-XSRXCUO4; PSEUDOGAP; OXIDES; STATE AB The Meissner effect and associated perfect 'bulk' diamagnetism together with zero resistance and gap opening are characteristic features of the superconducting state. In the pseudogap state of cuprates, unusual diamagnetic signals and anomalous proximity effects have been detected, but a Meissner effect has never been observed. Here we probe the local diamagnetic response in the normal state of an underdoped La(1.94)Sr(0.06)CuO(4) layer (T'(c)less than or similar to 5 K), which is brought into close contact with two nearly optimally doped La(1.84)Sr(0.16)CuO(4) layers (T(c)approximate to 32 K). We show that the entire 'barrier' layer of thickness, much larger than the typical c axis coherence lengths of cuprates, exhibits a Meissner effect at temperatures above T'(c) but below T(c). The temperature dependence of the effective penetration depth and superfluid density in different layers indicates that superfluidity with long-range phase coherence is induced in the underdoped layer by the proximity to optimally doped layers, but this induced order is sensitive to thermal excitation. C1 [Morenzoni, Elvezio; Wojek, Bastian M.; Suter, Andreas; Prokscha, Thomas] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland. [Wojek, Bastian M.] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland. [Logvenov, Gennady; Bozovic, Ivan] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Morenzoni, E (reprint author), Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland. EM elvezio.morenzoni@psi.ch OI Wojek, Bastian M./0000-0002-8216-5321; Morenzoni, Elvezio/0000-0002-9663-4213 FU US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division FX We thank M. Dobeli (ETH Zurich) for performing the Rutherford backscattering measurements and Z. Salman (PSI) for helping in the final phase of the LE-mu SR measurements. The work at BNL was supported by the US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. NR 34 TC 17 Z9 17 U1 2 U2 15 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD APR PY 2011 VL 2 AR 272 DI 10.1038/ncomms1273 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 756AN UT WOS:000289983800010 PM 21505428 ER PT J AU Dam, P Kataeva, I Yang, SJ Zhou, FF Yin, YB Chou, WC Poole, FL Westpheling, J Hettich, R Giannone, R Lewis, DL Kelly, R Gilbert, HJ Henrissat, B Xu, Y Adams, MWW AF Dam, Phuongan Kataeva, Irina Yang, Sung-Jae Zhou, Fengfeng Yin, Yanbin Chou, Wenchi Poole, Farris L., II Westpheling, Janet Hettich, Robert Giannone, Richard Lewis, Derrick L. Kelly, Robert Gilbert, Harry J. Henrissat, Bernard Xu, Ying Adams, Michael W. W. TI Insights into plant biomass conversion from the genome of the anaerobic thermophilic bacterium Caldicellulosiruptor bescii DSM 6725 SO NUCLEIC ACIDS RESEARCH LA English DT Article ID CARBOHYDRATE-BINDING MODULES; ANAEROCELLUM-THERMOPHILUM; CLOSTRIDIUM-THERMOCELLUM; MULTIDOMAIN XYLANASE; THERMOTOGA-MARITIMA; CELL-WALLS; CELLULOSE; DEGRADATION; PROTEIN; XYLOGLUCAN AB Caldicellulosiruptor bescii DSM 6725 utilizes various polysaccharides and grows efficiently on untreated high-lignin grasses and hardwood at an optimum temperature of similar to 80 degrees C. It is a promising anaerobic bacterium for studying high-temperature biomass conversion. Its genome contains 2666 protein-coding sequences organized into 1209 operons. Expression of 2196 genes (83%) was confirmed experimentally. At least 322 genes appear to have been obtained by lateral gene transfer (LGT). Putative functions were assigned to 364 conserved/hypothetical protein (C/HP) genes. The genome contains 171 and 88 genes related to carbohydrate transport and utilization, respectively. Growth on cellulose led to the up-regulation of 32 carbohydrate-active (CAZy), 61 sugar transport, 25 transcription factor and 234 C/HP genes. Some C/HPs were overproduced on cellulose or xylan, suggesting their involvement in polysaccharide conversion. A unique feature of the genome is enrichment with genes encoding multi-modular, multi-functional CAZy proteins organized into one large cluster, the products of which are proposed to act synergistically on different components of plant cell walls and to aid the ability of C. bescii to convert plant biomass. The high duplication of CAZy domains coupled with the ability to acquire foreign genes by LGT may have allowed the bacterium to rapidly adapt to changing plant biomass-rich environments. C1 [Dam, Phuongan; Zhou, Fengfeng; Yin, Yanbin; Chou, Wenchi; Xu, Ying] Univ Georgia, Inst Bioinformat, Athens, GA 30602 USA. [Dam, Phuongan; Kataeva, Irina; Yang, Sung-Jae; Zhou, Fengfeng; Yin, Yanbin; Poole, Farris L., II; Gilbert, Harry J.; Xu, Ying; Adams, Michael W. W.] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA. [Dam, Phuongan; Kataeva, Irina; Yang, Sung-Jae; Zhou, Fengfeng; Yin, Yanbin; Chou, Wenchi; Poole, Farris L., II; Westpheling, Janet; Hettich, Robert; Giannone, Richard; Lewis, Derrick L.; Kelly, Robert; Xu, Ying; Adams, Michael W. W.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Westpheling, Janet] Univ Georgia, Dept Genet, Athens, GA 30602 USA. [Lewis, Derrick L.; Kelly, Robert] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA. [Gilbert, Harry J.] Univ Georgia, Complex Carbohydrate Res Ctr, Athens, GA 30602 USA. [Henrissat, Bernard] CNRS, F-13288 Marseille, France. [Henrissat, Bernard] Univ Aix Marseille 1, F-13288 Marseille, France. [Henrissat, Bernard] Univ Aix Marseille 2, F-13288 Marseille, France. RP Xu, Y (reprint author), Univ Georgia, Inst Bioinformat, Athens, GA 30602 USA. EM xyn@bmb.uga.edu; adams@bmb.uga.edu RI Yin, Yanbin/C-9788-2010; Zhou, Fengfeng/A-8932-2008; Henrissat, Bernard/J-2475-2012; Hettich, Robert/N-1458-2016 OI Yin, Yanbin/0000-0001-7667-881X; Zhou, Fengfeng/0000-0002-8108-6007; Hettich, Robert/0000-0001-7708-786X FU Bioenergy Science Center (BESC); Oak Ridge National Laboratory; Office of Biological and Environmental Research in the DOE Office of Science [DE-PS02-06ER64304, DOE 4000063512]; University of California; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Los Alamos National Laboratory [DE-AC02-06NA25396]; Agence Nationale de la Recherche [AANR-07-BIOE-006]; National Science Foundation [DEB-0830024, DBI-0542119]; US Department of Energy [DE-AC05-00OR22725] FX This work was supported by the Bioenergy Science Center (BESC), Oak Ridge National Laboratory, a US Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science (contract no. DE-PS02-06ER64304) (DOE 4000063512); the University of California, Lawrence Berkeley National Laboratory (contract no. DE-AC02-05CH11231); Lawrence Livermore National Laboratory (contract No. DE-AC52-07NA27344); Los Alamos National Laboratory (contract No. DE-AC02-06NA25396). Agence Nationale de la Recherche, e-TRICEL (grant No. AANR-07-BIOE-006, to B.H.); National Science Foundation, (DEB-0830024, DBI-0542119). Funding for open access charge: US Department of Energy (DE-AC05-00OR22725). NR 68 TC 53 Z9 54 U1 0 U2 24 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0305-1048 J9 NUCLEIC ACIDS RES JI Nucleic Acids Res. PD APR PY 2011 VL 39 IS 8 BP 3240 EP 3254 DI 10.1093/nar/gkq1281 PG 15 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 757AD UT WOS:000290055200026 PM 21227922 ER PT J AU Titarenko, YE Batyaev, VF Titarenko, AY Butko, MA Pavlov, KV Florya, SN Tikhonov, RS Zhivun, VM Ignatyuk, AV Mashnik, SG Leray, S Boudard, A Cugnon, J Mancusi, D Yariv, Y Nishihara, K Matsuda, N Kumawat, H Mank, G Gudowski, W AF Titarenko, Yu E. Batyaev, V. F. Titarenko, A. Yu Butko, M. A. Pavlov, K. V. Florya, S. N. Tikhonov, R. S. Zhivun, V. M. Ignatyuk, A. V. Mashnik, S. G. Leray, S. Boudard, A. Cugnon, J. Mancusi, D. Yariv, Y. Nishihara, K. Matsuda, N. Kumawat, H. Mank, G. Gudowski, W. TI Measurement and simulation of the cross sections for nuclide production in Fe-56 and Cr-nat targets irradiated with 0.04- to 2.6-GeV protons SO PHYSICS OF ATOMIC NUCLEI LA English DT Article ID ENERGY PROTONS; ELEMENTS; RANGE AB The cross sections for nuclide production in thin Fe-56 and Cr-nat targets irradiated by 0.04-2.6-GeV protons are measured by direct gamma spectrometry using two gamma spectrometers with the resolutions of 1.8 and 1.7 keV for the Co-60 1332-keV gamma line. As a result, 649 yields of radioactive residual product nuclei have been obtained. The Al-27(p, x)Na-22 reaction has been used as a monitor reaction. The experimental data are compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations. C1 [Titarenko, Yu E.; Batyaev, V. F.; Titarenko, A. Yu; Butko, M. A.; Pavlov, K. V.; Florya, S. N.; Tikhonov, R. S.; Zhivun, V. M.] Inst Theoret & Expt Phys, Moscow 117218, Russia. [Ignatyuk, A. V.] Inst Phys & Power Engn, Obninsk 249033, Kaluga Oblast, Russia. [Mashnik, S. G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Leray, S.; Boudard, A.] CEA, Saclay, France. [Cugnon, J.; Mancusi, D.] Univ Liege, B-4000 Liege, Belgium. [Yariv, Y.] Soreq NRC, Yavne, Israel. [Nishihara, K.; Matsuda, N.] JAEA, Tokai, Ibaraki, Japan. [Kumawat, H.] BARC, Bombay, Maharashtra, India. [Mank, G.] IAEA, A-1400 Vienna, Austria. [Gudowski, W.] Royal Inst Technol, Stockholm, Sweden. RP Titarenko, YE (reprint author), Inst Theoret & Expt Phys, Ul Bolshaya Cheremushkinskaya 25, Moscow 117218, Russia. EM Yury.Titarenko@itep.ru RI Leray, Sylvie/A-3924-2012; OI Leray, Sylvie/0000-0002-1942-2911; Mancusi, Davide/0000-0002-2518-8228 FU International Science and Technology Center [3266]; State Nuclear Energy Corporation Rosatom FX This work was supported by the International Science and Technology Center, project no. 3266, and by the State Nuclear Energy Corporation Rosatom. NR 22 TC 8 Z9 8 U1 0 U2 3 PU MAIK NAUKA/INTERPERIODICA/SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA SN 1063-7788 EI 1562-692X J9 PHYS ATOM NUCL+ JI Phys. Atom. Nuclei PD APR PY 2011 VL 74 IS 4 BP 523 EP 536 DI 10.1134/S1063778811040168 PG 14 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 756TZ UT WOS:000290038900002 ER PT J AU Titarenko, YE Batyaev, VF Titarenko, AY Butko, MA Pavlov, KV Florya, SN Tikhonov, RS Zhivun, VM Ignatyuk, AV Mashnik, SG Leray, S Boudard, A Cugnon, J Mancusi, D Yariv, Y Nishihara, K Matsuda, N Kumawat, H Mank, G Gudowski, W AF Titarenko, Yu E. Batyaev, V. F. Titarenko, A. Yu Butko, M. A. Pavlov, K. V. Florya, S. N. Tikhonov, R. S. Zhivun, V. M. Ignatyuk, A. V. Mashnik, S. G. Leray, S. Boudard, A. Cugnon, J. Mancusi, D. Yariv, Y. Nishihara, K. Matsuda, N. Kumawat, H. Mank, G. Gudowski, W. TI Measurement and simulation of the cross sections for nuclide production in Nb-93 and Ni-nat targets irradiated with 0.04- to 2.6-GeV protons SO PHYSICS OF ATOMIC NUCLEI LA English DT Article ID ENERGY PROTONS AB The cross sections for nuclide production in thin Nb-93 and Ni-nat targets irradiated by 0.04- to 2.6-GeV protons have been measured by direct gamma spectrometry using two gamma spectrometers with the resolutions of 1.8 and 1.7 keV in the Co-60 1332-keV gamma line. As a result, 1112 yields of radioactive residual nuclei have been obtained. The Al-27(p, x)Na-22 reaction has been used as a monitor reaction. The experimental data have been compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations. C1 [Titarenko, Yu E.; Batyaev, V. F.; Titarenko, A. Yu; Butko, M. A.; Pavlov, K. V.; Florya, S. N.; Tikhonov, R. S.; Zhivun, V. M.] Inst Theoret & Expt Phys, Moscow 117218, Russia. [Ignatyuk, A. V.] Inst Phys & Power Engn, Obninsk 249033, Kaluga Oblast, Russia. [Mashnik, S. G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Leray, S.; Boudard, A.] CEA, Saclay, France. [Cugnon, J.; Mancusi, D.] Univ Liege, B-4000 Liege, Belgium. [Yariv, Y.] Soreq NRC, Yavne, Israel. [Nishihara, K.; Matsuda, N.] JAEA, Tokai, Ibaraki, Japan. [Kumawat, H.] BARC, Bombay, Maharashtra, India. [Mank, G.] IAEA, A-1400 Vienna, Austria. [Gudowski, W.] Royal Inst Technol, Stockholm, Sweden. RP Titarenko, YE (reprint author), Inst Theoret & Expt Phys, Ul Bolshaya Cheremushkinskaya 25, Moscow 117218, Russia. EM Yury.Titarenko@itep.ru RI Leray, Sylvie/A-3924-2012; OI Leray, Sylvie/0000-0002-1942-2911; Mancusi, Davide/0000-0002-2518-8228 FU International Science and Technology Center [3266]; State Nuclear Energy Corporation Rosatom FX This work was supported by the International Science and Technology Center, project no. 3266, and by the State Nuclear Energy Corporation Rosatom. NR 17 TC 8 Z9 8 U1 0 U2 4 PU MAIK NAUKA/INTERPERIODICA/SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA SN 1063-7788 EI 1562-692X J9 PHYS ATOM NUCL+ JI Phys. Atom. Nuclei PD APR PY 2011 VL 74 IS 4 BP 537 EP 550 DI 10.1134/S106377881104017X PG 14 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 756TZ UT WOS:000290038900003 ER PT J AU Titarenko, YE Batyaev, VF Titarenko, AY Butko, MA Pavlov, KV Florya, SN Tikhonov, RS Zhivun, VM Ignatyuk, AV Mashnik, SG Leray, S Boudard, A Cugnon, J Mancusi, D Yariv, Y Nishihara, K Matsuda, N Kumawat, H Mank, G Gudowski, W AF Titarenko, Yu E. Batyaev, V. F. Titarenko, A. Yu Butko, M. A. Pavlov, K. V. Florya, S. N. Tikhonov, R. S. Zhivun, V. M. Ignatyuk, A. V. Mashnik, S. G. Leray, S. Boudard, A. Cugnon, J. Mancusi, D. Yariv, Y. Nishihara, K. Matsuda, N. Kumawat, H. Mank, G. Gudowski, W. TI Measurement and simulation of the cross sections for nuclide production in W-nat and Ta-181 targets irradiated with 0.04- to 2.6-GeV protons SO PHYSICS OF ATOMIC NUCLEI LA English DT Article AB The cross sections for nuclide production in thin (nat)Wand Ta-181 targets irradiated by 0.04-2.6-GeV protons have been measured by direct gamma spectrometry using two gamma spectrometers with the resolutions of 1.8 and 1.7 keV in the Co-60 1332-keV gamma line. As a result, 1895 yields of radioactive residual product nuclei have been obtained. The Al-27(p, x)Na-22 reaction has been used as a monitor reaction. The experimental data have been compared with the MCNPX (BERTINI, ISABEL), CEM03.02, INCL4.2, INCL4.5, PHITS, and CASCADE07 calculations. C1 [Titarenko, Yu E.; Batyaev, V. F.; Titarenko, A. Yu; Butko, M. A.; Pavlov, K. V.; Florya, S. N.; Tikhonov, R. S.; Zhivun, V. M.] Inst Theoret & Expt Phys, Moscow 117218, Russia. [Ignatyuk, A. V.] Inst Phys & Power Engn, Obninsk 249033, Kaluga Oblast, Russia. [Mashnik, S. G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Leray, S.; Boudard, A.] CEA, Saclay, France. [Cugnon, J.; Mancusi, D.] Univ Liege, B-4000 Liege, Belgium. [Yariv, Y.] Soreq NRC, Yavne, Israel. [Nishihara, K.; Matsuda, N.] JAEA, Tokai, Ibaraki, Japan. [Kumawat, H.] BARC, Bombay, Maharashtra, India. [Mank, G.] IAEA, A-1400 Vienna, Austria. [Gudowski, W.] Royal Inst Technol, Stockholm, Sweden. RP Titarenko, YE (reprint author), Inst Theoret & Expt Phys, Ul Bolshaya Cheremushkinskaya 25, Moscow 117218, Russia. EM Yury.Titarenko@itep.ru RI Leray, Sylvie/A-3924-2012; OI Leray, Sylvie/0000-0002-1942-2911; Mancusi, Davide/0000-0002-2518-8228 FU International Science and Technology Center [3266]; State Nuclear Energy Corporation Rosatom FX This work was supported by the International Science and Technology Center, project no. 3266, and by the State Nuclear Energy Corporation Rosatom. NR 13 TC 9 Z9 9 U1 0 U2 3 PU MAIK NAUKA/INTERPERIODICA/SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA SN 1063-7788 EI 1562-692X J9 PHYS ATOM NUCL+ JI Phys. Atom. Nuclei PD APR PY 2011 VL 74 IS 4 BP 551 EP 572 DI 10.1134/S1063778811040181 PG 22 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 756TZ UT WOS:000290038900004 ER PT J AU Titarenko, YE Batyaev, VF Titarenko, AY Butko, MA Pavlov, KV Florya, SN Tikhonov, RS Zhivun, VM Ignatyuk, AV Mashnik, SG Leray, S Boudard, A Cugnon, J Mancusi, D Yariv, Y Nishihara, K Matsuda, N Kumawat, H Mank, G Gudowski, W AF Titarenko, Yu E. Batyaev, V. F. Titarenko, A. Yu Butko, M. A. Pavlov, K. V. Florya, S. N. Tikhonov, R. S. Zhivun, V. M. Ignatyuk, A. V. Mashnik, S. G. Leray, S. Boudard, A. Cugnon, J. Mancusi, D. Yariv, Y. Nishihara, K. Matsuda, N. Kumawat, H. Mank, G. Gudowski, W. TI Measurement and simulation of the cross sections for the production of Gd-148 in thin W-nat and Ta-181 targets irradiated with 0.4- to 2.6-GeV protons SO PHYSICS OF ATOMIC NUCLEI LA English DT Article ID CODE AB The cross sections for the production of Gd-148 in W-nat and Ta-181 targets irradiated by 0.4-, 0.6-, 0.8-, 1.2-, 1.6-, and 2.6-GeV protons at the ITEP accelerator complex have been measured by direct alpha spectrometry without chemical separation. The experimental data have been compared with the data obtained at other laboratories and with the theoretical simulations of the yields on the basis of the BERTINI, ISABEL, CEM03.02, INCL4.2, INCL4.5, CASCADE07, and PHITS codes. C1 [Titarenko, Yu E.; Batyaev, V. F.; Titarenko, A. Yu; Butko, M. A.; Pavlov, K. V.; Florya, S. N.; Tikhonov, R. S.; Zhivun, V. M.] Inst Theoret & Expt Phys, Moscow 117218, Russia. [Ignatyuk, A. V.] Inst Phys & Power Engn, Obninsk 249033, Kaluga Oblast, Russia. [Mashnik, S. G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Leray, S.; Boudard, A.] CEA, Saclay, France. [Cugnon, J.; Mancusi, D.] Univ Liege, B-4000 Liege, Belgium. [Yariv, Y.] Soreq NRC, Yavne, Israel. [Nishihara, K.; Matsuda, N.] JAEA, Tokai, Ibaraki, Japan. [Kumawat, H.] BARC, Bombay, Maharashtra, India. [Mank, G.] IAEA, A-1400 Vienna, Austria. [Gudowski, W.] Royal Inst Technol, Stockholm, Sweden. RP Titarenko, YE (reprint author), Inst Theoret & Expt Phys, Ul Bolshaya Cheremushkinskaya 25, Moscow 117218, Russia. EM Yury.Titarenko@itep.ru RI Leray, Sylvie/A-3924-2012; OI Leray, Sylvie/0000-0002-1942-2911; Mancusi, Davide/0000-0002-2518-8228 FU International Science and Technology Center [3266]; State Nuclear Energy Corporation Rosatom FX This work was supported by the International Science and Technology Center, project no. 3266, and by the State Nuclear Energy Corporation Rosatom. NR 13 TC 3 Z9 3 U1 0 U2 4 PU MAIK NAUKA/INTERPERIODICA/SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA SN 1063-7788 EI 1562-692X J9 PHYS ATOM NUCL+ JI Phys. Atom. Nuclei PD APR PY 2011 VL 74 IS 4 BP 573 EP 579 DI 10.1134/S1063778811040193 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 756TZ UT WOS:000290038900005 ER PT J AU McFadden, GB Coriell, SR Lott, PA AF McFadden, G. B. Coriell, S. R. Lott, P. A. TI Onset of morphological instability in two binary liquid layers SO PHYSICS OF FLUIDS LA English DT Article ID CONVECTION AB We consider the linear stability of a horizontal liquid bilayer subject to vertical heating. The two layers consist of a binary liquid that has undergone a phase transition, resulting in a horizontal interphase boundary between two phases with different compositions. We perform linear stability calculations to determine the critical values for the applied temperature difference across the system that is necessary to produce instability using both numerical computations and small-wavenumber approximations. We focus on an instability primarily due to the phase change, which can occur in the absence of buoyancy and surface-tension-driven convection. We find both direct and oscillatory modes of instability, either of which can persist to small wavenumbers that allow approximate analytical descriptions. The interaction of flow with a deforming phase boundary plays a critical role in the instability, and the results are compared to morphological stability results that can be obtained in the absence of flow. [doi:10.1063/1.3567188] C1 [McFadden, G. B.; Coriell, S. R.] NIST, Gaithersburg, MD 20899 USA. [Lott, P. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP McFadden, GB (reprint author), NIST, Gaithersburg, MD 20899 USA. EM mcfadden@nist.gov RI McFadden, Geoffrey/A-7920-2008 OI McFadden, Geoffrey/0000-0001-6723-2103 FU National Research Council; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was supported in part by a National Research Council Postdoctoral Fellowship and performed in part under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. NR 15 TC 1 Z9 1 U1 0 U2 7 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1070-6631 J9 PHYS FLUIDS JI Phys. Fluids PD APR PY 2011 VL 23 IS 4 AR 044102 DI 10.1063/1.3567188 PG 8 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA 756YF UT WOS:000290050000025 ER PT J AU Ren, HY Wu, YH AF Ren, Huiying Wu, Yanhua TI Turbulent boundary layers over smooth and rough forward-facing steps SO PHYSICS OF FLUIDS LA English DT Article ID SURFACE-ROUGHNESS; WALL TURBULENCE; VORTEX IDENTIFICATION; SPANWISE VORTICES; FLOW AB The present work explores the impact of the roughness on the turbulent boundary layers over forward-facing steps. The roughness topography on the top surface of the rough step is replicated from a realistic turbine blade and embodies three-dimensional and highly irregular topographical features. High spatial resolution particle image velocimetry measurements are performed in the x-y planes at two different spanwise positions in turbulent boundary layers over both smooth and rough steps of the same mean heights at Re-h=3450 and delta/h=8. Comparison of mean flow structures, Reynolds normal and shear stresses, quadrant analysis of instantaneous shear stress contributing events, and average spanwise vorticity reveals that the separated flow after the step is weakened by the surface roughness on top of the step while the flow ahead of the step is invariant to the surface conditions. The characteristics of the coherent spanwise vortices such as the numbers, size, and circulation distributions are also found to be significantly modified by the roughness topography. (C) 2011 American Institute of Physics. [doi:10.1063/1.3576911] C1 [Ren, Huiying; Wu, Yanhua] Wright State Univ, Dept Mech & Mat Engn, Dayton, OH 45435 USA. RP Ren, HY (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM yanhuawu@ntu.edu.sg RI Wu, Yanhua/A-3839-2011; OI Wu, Yanhua/0000-0003-2345-4630 FU Wright State University FX This study is supported by Wright State University. The authors thank Professor Christensen at University of Illinois at Urbana-Champaign for providing the roughness topography data. NR 30 TC 16 Z9 16 U1 0 U2 14 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 1070-6631 EI 1089-7666 J9 PHYS FLUIDS JI Phys. Fluids PD APR PY 2011 VL 23 IS 4 AR 045102 DI 10.1063/1.3576911 PG 17 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA 756YF UT WOS:000290050000030 ER PT J AU Field, RV Edwards, TS Rouse, JW AF Field, R. V., Jr. Edwards, T. S. Rouse, J. W. TI Modeling of atmospheric temperature fluctuations by translations of oscillatory random processes with application to spacecraft atmospheric re-entry SO PROBABILISTIC ENGINEERING MECHANICS LA English DT Article DE Atmospheric modeling; Atmospheric re-entry; Oscillatory processes; Random vibration; Translation processes; Temperature fluctuations ID PROBABILITY DENSITY-FUNCTIONS; STABLY STRATIFIED ATMOSPHERE; FIELD; LAYER; WIND AB The presence of random fluctuations of air temperature within the Earth's atmosphere is a well-documented phenomenon. During the past seventy years there have been numerous experimental efforts to accurately measure air temperature as a function of altitude and, through careful data analysis, provide statistics describing these fluctuations and the associated fluctuations in temperature gradients. In addition, several researchers suggest the presence of atmospheric layers or "sheets" where the statistics describing fluctuations in air temperature can vary significantly from layer to layer. Herein, we propose a model to represent fluctuations of air temperature within a layered atmosphere. The model is a special type of inhomogeneous non-Gaussian differentiable random process and can be calibrated to available data on the marginal statistics and spectral content of the fluctuating temperature field, as well as the associated first derivative of the process representing fluctuations in temperature gradients. Properties of the proposed model are presented, and statistical realizations of the fluctuating temperature field and its gradient are computed and presented for illustration. The random vibration response of a spacecraft falling to Earth through these fluctuating conditions is then considered to demonstrate the usefulness of the proposed model. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Field, R. V., Jr.; Edwards, T. S.; Rouse, J. W.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Field, RV (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM rvfield@sandia.gov; tsedwar@sandia.gov; jwrouse@sandia.gov RI Field, Richard/K-6468-2013 OI Field, Richard/0000-0002-2765-7032 FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 28 TC 1 Z9 1 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0266-8920 J9 PROBABILIST ENG MECH JI Probab. Eng. Eng. Mech. PD APR PY 2011 VL 26 IS 2 BP 231 EP 239 DI 10.1016/j.probengmech.2010.07.005 PG 9 WC Engineering, Mechanical; Mechanics; Statistics & Probability SC Engineering; Mechanics; Mathematics GA 754BI UT WOS:000289825700014 ER PT J AU Souers, PC Druce, RL Roeske, F Vitello, P May, C AF Souers, P. Clark Druce, Robert L. Roeske, Franklin, Jr. Vitello, Peter May, Chadd TI A Complete Detonator, Booster, and Main Charge Study of LX-07/PBX 9502 SO PROPELLANTS EXPLOSIVES PYROTECHNICS LA English DT Article DE Breakout Time; Booster; Detonator; Fabry-Perot Interferometry; Spike Pressure ID CHAPMAN-JOUGUET PRESSURE AB A complete study of an exploding bridgewire detonator (EBW), an LX-07 hemispherical booster and a PBX 9502 outer shell are described. Breakout times from all three are listed in terms of first impact on the booster, i.e., code times. Lucite windows are also used to obtain particle velocities at the edges of each explosive, and these are converted into explosive pressures. The key to modeling is the use of the profile of the aluminum detonator can as it impacts the booster, i.e., we need to know the curvature of the end of the booster can. Modeling even with coarse zoning shows that (i) using reactive flow in the booster is better than programmed burn, (ii) creating the flyer curvature helps, and (iii) creating the time differences of flyer impact helps even more. C1 [Souers, P. Clark; Druce, Robert L.; Roeske, Franklin, Jr.; Vitello, Peter; May, Chadd] Lawrence Livermore Natl Lab, Energet Mat Ctr, Livermore, CA 94550 USA. RP Souers, PC (reprint author), Lawrence Livermore Natl Lab, Energet Mat Ctr, Livermore, CA 94550 USA. EM souers1@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 7 TC 0 Z9 0 U1 2 U2 6 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0721-3115 EI 1521-4087 J9 PROPELL EXPLOS PYROT JI Propellants Explos. Pyrotech. PD APR PY 2011 VL 36 IS 2 BP 119 EP 124 DI 10.1002/prep.201000074 PG 6 WC Chemistry, Applied; Engineering, Chemical SC Chemistry; Engineering GA 757YH UT WOS:000290124100004 ER PT J AU Maiti, A Gee, RH AF Maiti, Amitesh Gee, Richard H. TI PETN Coarsening - Predictions from Accelerated Aging Data SO PROPELLANTS EXPLOSIVES PYROTECHNICS LA English DT Article DE PETN; Coarsening ID PENTAERYTHRITOL TETRANITRATE; SURFACE AB Ensuring good ignition properties over long periods of time necessitates maintaining a good level of flow porosity in powders of initiator materials and preventing particle coarsening. To simulate flow porosity changes of such powder materials over long periods of time a common strategy is to perform accelerated aging experiments over shorter time spans at elevated temperatures. In this paper, we examine historical accelerated-aging data on powders of pentaerythritol tetranitrate, an important energetic material, and make predictions for long-term aging under ambient conditions. We develop an evaporation-condensation-based model to provide some mechanistic understanding of the coarsening process. C1 [Maiti, Amitesh; Gee, Richard H.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Maiti, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM amaiti@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors would like to sincerely thank Arnie Duncan and Melissa Moore of the Applied Technology division of BWXT Pantex. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 25 TC 7 Z9 7 U1 2 U2 6 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0721-3115 J9 PROPELL EXPLOS PYROT JI Propellants Explos. Pyrotech. PD APR PY 2011 VL 36 IS 2 BP 125 EP 130 DI 10.1002/prep.201000106 PG 6 WC Chemistry, Applied; Engineering, Chemical SC Chemistry; Engineering GA 757YH UT WOS:000290124100005 ER PT J AU Samsing, J Kim, AG AF Samsing, Johan Kim, Alex G. TI Dithering Strategies and Point-Source Photometry SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article ID IMAGES AB The accuracy in the photometry of a point source depends on the point-spread function (PSF), detector pixelization, and observing strategy. The PSF and pixel response describe the spatial blurring of the source, the pixel scale describes the spatial sampling of a single exposure, and the observing strategy determines the set of dithered exposures with pointing offsets from which the source flux is inferred. In a wide-field imaging survey, sources of interest are randomly distributed within the field of view and hence are centered randomly within a pixel. A given hardware configuration and observing strategy therefore have a distribution of photometric uncertainty for sources of fixed flux that fall in the field. In this article we explore the ensemble behavior of photometric and position accuracies for different PSFs, pixel scales, and dithering patterns. We find that the average uncertainty in the flux determination depends slightly on dither strategy, whereas the position determination can be strongly dependent on the dithering. For cases with pixels much larger than the PSF, the uncertainty distributions can be non-Gaussian, with rms values that are particularly sensitive to the dither strategy. We also find that for these configurations with large pixels, pointings dithered by a fractional pixel amount do not always give minimal average uncertainties; this is in contrast to image reconstruction for which fractional dithers are optimal. When fractional pixel dithering is favored, a pointing accuracy of better than similar to 0.15 pixel width is required to maintain half the advantage over random dithers. C1 [Samsing, Johan] Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen, Denmark. [Kim, Alex G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys, Berkeley, CA 94720 USA. RP Samsing, J (reprint author), Niels Bohr Inst, Dark Cosmol Ctr, Blegdamsvej 17, DK-2100 Copenhagen, Denmark. FU Office of Science, Office of High Energy Physics, of the US Department of Energy [DE-AC02-05CH11231]; OTICON Fund; Dark Cosmology Centre; Berkeley Center for Cosmological Physics; Danish National Research Foundation FX A. G. K. was supported by the Director, Office of Science, Office of High Energy Physics, of the US Department of Energy under contract no. DE-AC02-05CH11231. J. S. acknowledges support from the OTICON Fund and Dark Cosmology Centre, and he thanks the Berkeley Center for Cosmological Physics and Berkeley Lab for hospitality during his stay. The Dark Cosmology Centre is funded by the Danish National Research Foundation. NR 5 TC 0 Z9 0 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD APR PY 2011 VL 123 IS 902 BP 470 EP 480 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 757YM UT WOS:000290124900008 ER PT J AU Chang, I Kwon, TH Cho, GC AF Chang, Ilhan Kwon, Tae-Hyuk Cho, Gye-Chun TI An experimental procedure for evaluating the consolidation state of marine clay deposits using shear wave velocity SO SMART STRUCTURES AND SYSTEMS LA English DT Article DE bender element; consolidation state; effective stress; marine clay; shear wave velocity; under-consolidation ID BENDER ELEMENTS AB In marine clay deposits, naturally formed or artificially reclaimed, the evaluation and monitoring of the consolidation process has been a critical issue in civil engineering practices due to the time frame required for completing the consolidation process, which range from several days to several years. While complementing the conventional iconographic method suggested by Casagrande and recently developed in-situ techniques that measure the shear wave, this study suggests an alternative experimental procedure that can be used to evaluate the consolidation state of marine clay deposits using the shear wave velocity. A laboratory consolidation testing apparatus was implemented with bimorph-type piezoelectric bender elements to determine the effective stress-shear wave velocity (sigma'-V-s) relationship with the marine clays of interest. The in-situ consolidation state was then evaluated by comparing the in-situ shear wave velocity data with the effective stress-shear wave velocity relationships obtained from laboratory experiments. The suggested methodology was applied and verified at three different sites in South Korea, i.e., a foreshore site in Incheon, a submarine deposit in Busan, and an estuary delta deposit in Busan. It is found that the shear wave-based experimental procedure presented in this paper can be effectively and reliably used to evaluate the consolidation state of marine clay deposits. C1 [Chang, Ilhan; Cho, Gye-Chun] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Taejon 305701, South Korea. [Kwon, Tae-Hyuk] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Cho, GC (reprint author), Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, 291 Daehak No, Taejon 305701, South Korea. EM gyechun@kaist.edu RI Cho, Gye-Chun/C-1600-2011; Kwon, Tae-Hyuk/F-2183-2013; Chang, Ilhan/O-9076-2014 OI Chang, Ilhan/0000-0001-8369-0606 FU Korea government (MEST) [R11-2002-101-04005-0] FX This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. R11-2002-101-04005-0). NR 25 TC 0 Z9 0 U1 0 U2 6 PU TECHNO-PRESS PI DAEJEON PA PO BOX 33, YUSEONG, DAEJEON 305-600, SOUTH KOREA SN 1738-1584 J9 SMART STRUCT SYST JI Smart. Struct. Syst. PD APR PY 2011 VL 7 IS 4 SI SI BP 289 EP 302 PG 14 WC Engineering, Civil; Engineering, Mechanical; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 755KF UT WOS:000289928400004 ER PT J AU Simpson, ML Cummings, PT AF Simpson, Michael L. Cummings, Peter T. TI Fluctuations and Correlations in Physical and Biological Nanosystems: The Tale Is in the Tails SO ACS NANO LA English DT Article ID STOCHASTIC GENE-EXPRESSION; SACCHAROMYCES-CEREVISIAE; PROTEIN EXPRESSION; GLOBAL ANALYSIS; SINGLE-CELL; NOISE; MEMBRANES; HIV-1; YEAST; INDIVIDUALITY AB The inherently small system sizes Involved imply that, in the absence of large applied fields designed to overwhelm them, fluctuations will play a major role in determining the response and functionality of nanoscale systems. Theoretical advances over the past two decades have provided fresh insight into fluctuations and their role at the nanoscale, even in the presence of arbitrarily large applied external fields. In contrast to traditional engineered systems, Nature's approach to nanotechnology is to embrace and to exploit fluctuations and noise to create adaptable, persistent, optimized functional architectures. We describe some of the mechanisms by which Nature exploits noise, with the goal of applying these lessons to engineered physical and chemical nanosystems. In particular, we emphasize the critical role of the tails of distributions of properties In both physical and biological nanosystems and their impact On system behavior. C1 [Simpson, Michael L.; Cummings, Peter T.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Simpson, Michael L.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Cummings, Peter T.] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA. RP Simpson, ML (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. EM simpsonml1@ornl.gov; peter.cummings@vanderbilt.edu RI Simpson, Michael/A-8410-2011; Cummings, Peter/B-8762-2013 OI Simpson, Michael/0000-0002-3933-3457; Cummings, Peter/0000-0002-9766-2216 FU Scientific User Facilities Division, Office of Basic Energy Sciences, Office of Science, Department of Energy FX The authors acknowledge the support of this research, conducted in the Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory, by the Scientific User Facilities Division, Office of Basic Energy Sciences, Office of Science, Department of Energy. We also acknowledge our numerous conversations and collaborations with colleagues both within and outside the CNMS: Pat Collier, Chris Cox, Roy Dar, Mitch Doktycz, Denis Evans, Jason Fowlkes, Scott T. Retterer, Bobby Sumpter, Leor Weinberger, and Xioaguang Zhang. NR 44 TC 6 Z9 6 U1 1 U2 15 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 APR PY 2011 VL 5 IS 4 BP 2425 EP 2432 DI 10.1021/nn201011m PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100003 PM 21456547 ER PT J AU Stadler, AL Sun, DZ Maye, MM van der Lelie, D Gang, O AF Stadler, Andrea L. Sun, Dazhi Maye, Mathew M. van der Lelie, Daniel Gang, Oleg TI Site-Selective Binding of Nanoparticles to Double-Stranded DNA via Peptide Nucleic Acid "Invasion" SO ACS NANO LA English DT Article DE gold nanoparticles; peptide nucleic acid; double-stranded DNA; nanoparticle assembly ID DUPLEX DNA; GOLD NANOPARTICLES; CRYSTALLIZATION; BEHAVIOR; ARRAYS; PNAS; KINETICS; SURFACE AB We demonstrate a novel method for by-design placement of nano-objects along double-stranded (ds) DNA. A molecular intercalator, designed as a peptide nucleic acid (PNA)-DNA chimera, is able to invade dsDNA at the PNA-side due to the hybridization specificity between PNA and one of the duplex strands. At the same time, the single-stranded (ss) DNA tail of the chimera, allows for anchoring of nano-objects that have been functionalized with complementary ssDNA. The developed method is applied for interparticle attachment and for the fabrication of particle clusters using a dsDNA template. This method significantly broadens the molecular toolbox for constructing nanoscale systems by including the most conventional not yet utilized DNA motif, double helix DNA. C1 [Sun, Dazhi; Gang, Oleg] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Stadler, Andrea L.; van der Lelie, Daniel] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Maye, Mathew M.] Syracuse Univ, Dept Chem, Syracuse, NY 13244 USA. RP Gang, O (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. EM ogang@bnl.gov RI Sun, Dazhi /H-3625-2011; Sun, Dazhi/F-5144-2013 OI Sun, Dazhi/0000-0001-7553-3141 FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX Research was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. Research was carried at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. We thank C. Chi for nanoparticle synthesis. NR 32 TC 9 Z9 9 U1 2 U2 39 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 APR PY 2011 VL 5 IS 4 BP 2467 EP 2474 DI 10.1021/nn101355n PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100008 PM 21388119 ER PT J AU Lin, ZB Franceschetti, A Lusk, MT AF Lin, Zhibin Franceschetti, Alberto Lusk, Mark T. TI Size Dependence of the Multiple Exciton Generation Rate in CdSe Quantum Dots SO ACS NANO LA English DT Article DE multiple exciton generation; carrier multiplication; CdSe nanocrystal quantum dots; photovoltaic; pseudopotential method; Fermi's golden rule ID EFFICIENCY CARRIER MULTIPLICATION; SEMICONDUCTOR NANOCRYSTALS; 1ST-PRINCIPLES CALCULATIONS; MULTIEXCITON GENERATION; COLLOIDAL PBSE; SPECTROSCOPY; CLUSTERS; BEHAVIOR; SILICON; FILMS AB The multiplication rates of hot carriers in CdSe quantum dots are quantified using an atomistic pseudopotential approach and first-order perturbation theory. We consider both the case of an individual carrier (electron or hole) decaying into a trion and the case of an electron-hole pair decaying into a biexciton. The dependence on quantum dot volume of multiplication rate, density of final states, and effective Coulomb Interaction are determined. We show that the multiplication rate of a photogenerated electron-hole pair decreases with dot size for a given absolute photon energy. However, If the photon energy is rescaled by the volume-dependent optical gap, then smaller dots exhibit an enhancement in carrier multiplication rate for a given relative photon energy. We find that holes have much higher multiplication rates than electrons of the same excess energy due to the larger density of final states (positive trions). When electron-hole pairs are generated by photon absorption, however, the net carrier multiplication rate Is dominated by elections because they have much higher excess energy on average. We also find, contrary to earlier studies, that the effective Coulomb coupling governing carrier multiplication is energy-dependent. C1 [Lin, Zhibin; Lusk, Mark T.] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA. [Lin, Zhibin; Franceschetti, Alberto] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Lin, ZB (reprint author), Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA. EM zlin@mines.edu; alberto.franceschetti@nrel.gov; mlusk@mines.edu RI lin, zhibin/F-1299-2010 FU Renewable Energy Materials Research Science and Engineering Center (NSF) [DMR-0820518]; National Renewable Energy Laboratory (NREL); NSF [CNS-0722415] FX We are grateful to A. Nozik and M. Beard for useful discussions concerning MEG efficiency. This work was supported by the Renewable Energy Materials Research Science and Engineering Center (NSF Grant No. DMR-0820518) at the Colorado School of Mines and the National Renewable Energy Laboratory (NREL). The calculations were carried out using the high performance computing resources provided by the Golden Energy Computing Organization at the Colorado School of Mines (NSF Grant No. CNS-0722415). NR 47 TC 36 Z9 37 U1 1 U2 40 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 APR PY 2011 VL 5 IS 4 BP 2503 EP 2511 DI 10.1021/nn200141f PG 9 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100012 PM 21355556 ER PT J AU Fleischer, M Weber-Bargioni, A Altoe, MVP Schwartzberg, AM Schuck, PJ Cabrini, S Kern, DP AF Fleischer, Monika Weber-Bargioni, Alexander Altoe, M. Virginia P. Schwartzberg, Adam M. Schuck, P. James Cabrini, Stefano Kern, Dieter P. TI Gold Nanocone Near-Field Scanning Optical Microscopy Probes SO ACS NANO LA English DT Article DE near-field scanning optical microscopy; nanostructures; gold nanocones; electron beam induced deposition; ion milling; near-field enhancement; tip-enhanced Raman spectroscopy ID ENHANCED RAMAN-SPECTROSCOPY; FOCUSED ELECTRON-BEAM; WALL CARBON NANOTUBES; LIGHT-SCATTERING; NANOPARTICLE; NANOSTRUCTURES; FABRICATION; DEPOSITION; RESOLUTION; RESONANCE AB Near-field scanning optical microscopy enables the simultaneous topographical and, subdiffraction limited optical imaging of surfaces. A process is presented for the implementation of single individually engineered gold cones at the tips of atomic force microscopy cantilevers. These cantilevers act as novel high-performance optical near-field probes. In the fabrication, thin-film metallization, electron beam induced deposition of etch masks, and Ar ion milling are combined. The cone constitutes a well-defined highly efficient optical antenna with a tip radius on the order of 10 nm and an adjustable plasmon resonance frequency. The sharp tip enables high resolution, topographical imaging. By controllably varying the cone size, the resonance frequency can be adapted to the application of choice. Structural properties of these sharp-tipped probes are presented together with topographical images recorded with a cone probe. The antenna functionality is demonstrated by gathering the near field enhanced Raman signature of individual carbon nanotubes with a gold cone scanning probe.: C1 [Fleischer, Monika; Kern, Dieter P.] Univ Tubingen, Inst Appl Phys, D-72076 Tubingen, Germany. [Weber-Bargioni, Alexander; Altoe, M. Virginia P.; Schwartzberg, Adam M.; Schuck, P. James; Cabrini, Stefano] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Fleischer, M (reprint author), Univ Tubingen, Inst Appl Phys, Morgenstelle 10, D-72076 Tubingen, Germany. EM monika.fleischer@uni-tuebingen.de FU European Social Fund; Ministry Of Science, Research; Arts Baden-Wurttemberg; Baden-Wurtternberg-Stiftung; Tubingen University; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX D. Ghosh, A. Ismach, and S. Dhuey are gratefully acknowledged for providing the CdS nanorod, carbon nanotube, and structured PMMA samples. The authors thank F. Ogletree, P. Ashby, and D. Olynick for valuable discussions. This project is supported by the European Social Fund and by the Ministry Of Science, Research and the Arts Baden-Wurttemberg. M.F. gratefully acknowledges financial support by the Baden-Wurtternberg-Stiftung and by Projektforderung fur NachwuchswissenschaftlerInnen from Tubingen University. Work at the Molecular Foundry was performed under User Proposal No. 550 and supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 56 TC 43 Z9 43 U1 7 U2 67 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 APR PY 2011 VL 5 IS 4 BP 2570 EP 2579 DI 10.1021/nn102199u PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100018 PM 21401116 ER PT J AU Crochet, JJ Sau, JD Duque, JG Doorn, SK Cohen, ML AF Crochet, Jared J. Sau, Jay D. Duque, Juan G. Doorn, Stephen K. Cohen, Marvin L. TI Electrodynamic and Excitonic Intertube Interactions in Semiconducting Carbon Nanotube Aggregates SO ACS NANO LA English DT Article DE carbon nanotube bundles; exciton; delocalization; diffusion; spectroscopy; coherence; tunneling ID ENERGY-TRANSFER; PHOTOLUMINESCENCE; RESONANCES AB The optical properties, of selectively aggregated, nearly single chirality single-wall carbon nanotubes were investigated by both continuous-wave and time spectroscopies. With reduced sample heterogeneities; we have resolved;aggregation-dependent reductions of the excitation energy of the Si exciton and enhanced electron-hole pair absorption. Photoluminescence, spectra revealed a spectral splitting of S(1) and simultaneous reductions of the emission efficiencies and nonradiative decay rates. The observed strong deviations from isolated tube behavior are accounted for by enhanced screening of the intratube Coulomb interactions, intertube exciton tunneling, and diffusion-driven exciton quenching. We also provide evidence that density gradient ultracentrifugation can be used to structurally sort single-wall carbon nanotubes by aggregate size as evident by a monotonic dependence of the aforementioned optical properties on buoyant density. C1 [Crochet, Jared J.; Duque, Juan G.; Doorn, Stephen K.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Sau, Jay D.] Univ Maryland, Condensed Matter Theory Ctr, College Pk, MD 20742 USA. [Sau, Jay D.] Univ Maryland, Joint Quantum Inst, College Pk, MD 20742 USA. [Duque, Juan G.] Los Alamos Natl Lab, Div Chem, Phys Chem & Appl Spect Grp, Los Alamos, NM 87545 USA. [Cohen, Marvin L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Cohen, Marvin L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Crochet, JJ (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. EM jcrochet@lanl.gov RI Duque, Juan/G-2657-2010; Crochet, Jared/C-8488-2011; OI Crochet, Jared/0000-0002-9570-2173 FU NSF [DMR07-05941]; Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division of the U.S. Department of Energy [DE-AC02-05CH11231]; LANL-LDRD; U.S. Department of Energy [DE-AC52-06NA25396] FX J.C. thanks Tobias Hertel for generous support as well as Timo Hefner and Dominik G. Stich for technical assistance. J.S. thanks JQI-NSF-PFC, DARPA-QUEST, and LPS-NSA. M.L.C. acknowledges the NSF Grant DMR07-05941 and Director, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office cif Basic Energy Sciences user facility and partially supported by LANL-LDRD program. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under Contract DE-AC52-06NA25396. NR 40 TC 29 Z9 29 U1 0 U2 27 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 APR PY 2011 VL 5 IS 4 BP 2611 EP 2618 DI 10.1021/nn200427r PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100023 PM 21391554 ER PT J AU Kim, JY Noh, JH Zhu, K Halverson, AF Neale, NR Park, S Hong, KS Frank, AJ AF Kim, Jin Young Noh, Jun Hong Zhu, Kai Halverson, Adam F. Neale, Nathan R. Park, Sangbaek Hong, Kug Sun Frank, Arthur J. TI General Strategy for Fabricating Transparent TiO2 Nanotube Arrays for Dye-Sensitized Photoelectrodes: Illumination Geometry and Transport Properties SO ACS NANO LA English DT Article DE transparent; TiO2 nanotube; anodization; Nb-doped TiO2; dye-sensitized solar cells; illumination geometry; charge transport ID SOLAR-CELLS; TITANIUM-DIOXIDE; CONDUCTING OXIDE; HIGH-EFFICIENCY; THIN-FILMS; DOPED TIO2; GROWTH; RECOMBINATION; ANODIZATION; PERFORMANCE AB We report on the preparation of transparent oriented Mania nanotube (NT) photoelectrodes and the effect of illumination direction on light harvesting, electron transport, and recombination in dye-sensitized solar cells (DSSCs) Incorporating these electrodes. High solar conversion efficiency requires that the incident light enters the cell from the photoelectrode side. However, it has been synthetically challenging to prepare transparent TiO2 NT electrodes by directly anodizing Ti metal films on transparent conducting oxide (TCO) substrates because of the difficulties of controlling the synthetic conditions. We describe a general synthetic strategy for fabricating transparent TiO2 NT films on TCO substrates. With the aid of a conducting Nb-doped TiO2 (NTO) layer between the Ti film and TCO substrate, the Ti film was anodized completely without degrading the TCO. The NTO layer was found to protect the TCO from degradation through a self-terminating mechanism by arresting the electric field-assisted dissolution process at the NT-NTO interface. The illumination direction and wavelength of the light incident on the DSSCs were shown to strongly influence the incident photon-to-current conversion efficiency, light-harvesting, and charge-collection properties, which, in turn, affect the photocurrent density, photovoltage, and solar. energy conversion efficiency. Effects of NT,film thickness on the properties and performance of DSSCs were also examined. Illuminating the cell from the photoelectrode substantially increased the conversion efficiency compared with illuminating it from the counter-electrode side. C1 [Kim, Jin Young; Zhu, Kai; Halverson, Adam F.; Neale, Nathan R.; Frank, Arthur J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Noh, Jun Hong; Park, Sangbaek; Hong, Kug Sun] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea. RP Frank, AJ (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Arthur.Frank@nrel.gov RI Kim, Jin Young/B-7077-2012; Park, Sangbaek/M-6015-2013 OI Kim, Jin Young/0000-0001-7728-3182; Park, Sangbaek/0000-0002-4900-2010 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences; Division of Photovoltaics, Office of Utility Technologies, U.S. Department of Energy [DE-AC36-08GO28308] FX This work was supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences (A.F.H., A.J.F.), and the Division of Photovoltaics, Office of Utility Technologies, (J.Y.K., K Z., N.R.N.), U.S. Department of Energy, under contract no. DE-AC36-08GO28308. NR 50 TC 76 Z9 76 U1 2 U2 70 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 EI 1936-086X J9 ACS NANO JI ACS Nano PD APR PY 2011 VL 5 IS 4 BP 2647 EP 2656 DI 10.1021/nn200440u PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100027 PM 21395234 ER PT J AU Kim, TH Lee, BY Jaworski, J Yokoyama, K Chung, WJ Wang, E Hong, S Majumdar, A Lee, SW AF Kim, Tae Hun Lee, Byung Yang Jaworski, Justyn Yokoyama, Keisuke Chung, Woo-Jae Wang, Eddie Hong, Seunghun Majumdar, Arun Lee, Seung-Wuk TI Selective and Sensitive TNT Sensors Using Biomimetic Polydiacetylene-Coated CNT-FETs SO ACS NANO LA English DT Article DE lipid membrane receptor; polydiacetylene; trinitrotoluene; carbon nanotube; TNT sensor ID EXPLOSIVES; NANOTUBES; COMPOSITE; POLYMERS; VESICLES AB Miniaturized smart sensors that can perform sensitive and selective real-time monitoring of target analytes are tremendously valuable for various sensing applications. We developed selective nanocoatings by combining trinitrotoluene (TNT) receptors bound to conjugated polydiacetylene (PDA) polymers with single-walled carbon nanotube field-effect transistors (SWNT-FET). Selective binding events between the TNT molecules and phage display derived TNT receptors were effectively transduced to sensitive SWNT-FET conductance sensors through the PDA coating layers. The resulting sensors exhibited an unprecedented 1 fM sensitivity toward TNT in real time, with excellent selectivity over various similar aromatic compounds. Our biomimetic receptor coating approach may be useful for the development of sensitive and selective micro- and nanoelectronic sensor devices for various other target analytes. C1 [Kim, Tae Hun; Lee, Byung Yang; Chung, Woo-Jae; Lee, Seung-Wuk] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. [Jaworski, Justyn; Wang, Eddie] Univ Calif Berkeley, Joint Grad Grp Bioengn, Berkeley, CA 94720 USA. [Jaworski, Justyn; Wang, Eddie] Univ Calif San Francisco, San Francisco, CA 94720 USA. [Yokoyama, Keisuke] NSK Ltd, Tokyo, Japan. [Hong, Seunghun] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea. [Majumdar, Arun] US DOE, ARPA E, Washington, DC 20585 USA. [Lee, Seung-Wuk] Berkeley Nanosci & Nanoengn Inst, Berkeley, CA 94720 USA. [Kim, Tae Hun; Lee, Byung Yang; Jaworski, Justyn; Chung, Woo-Jae; Wang, Eddie; Lee, Seung-Wuk] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Kim, Tae Hun] Soonchunhyang Univ, Dept Chem, Asan 336745, South Korea. RP Lee, SW (reprint author), Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. EM leesw@berkeley.edu RI Kim, Tae Hyun/C-8884-2009; Hong, Seunghun/B-2545-2012; OI Kim, Tae Hyun/0000-0002-7122-8227; Lee, Byung Yang/0000-0003-0125-2501; Wang, Eddie/0000-0002-9814-0102 FU National Science Foundation [ECCS-0731309]; Office of Naval Research; Center of Integrated Nanomechanical Systems (COINS) of the National Science Foundation [EEC-0832819]; Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC02-05CH11231]; Defense Acquisition Program Administration and Agency in South Korea [ADD-10-70-06-0]; NRF [2009-0079103, 2010-0005574] FX This research was performed under the supports of the National Science Foundation (EXP-SA: Award No, ECCS-0731309), the Office of Naval Research, the Center of Integrated Nanomechanical Systems (COINS) of the National Science Foundation (Grant No. EEC-0832819), and the Office of Basic Energy Sciences, U.S. Department of Energy (Contract No. DE-AC02-05CH11231). S.W.L. acknowledges the support from Defense Acquisition Program Administration and Agency for Defense Development under the contract (ADD-10-70-06-0) in South Korea. S.H. and T.H.K. acknowledge the support from the NRF grants (No. 2009-0079103 and No. 2010-0005574), NR 34 TC 63 Z9 64 U1 11 U2 105 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 APR PY 2011 VL 5 IS 4 BP 2824 EP 2830 DI 10.1021/nn103324p PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100047 PM 21361351 ER PT J AU Yang, XD Ishikawa, A Yin, XB Zhang, X AF Yang, Xiaodong Ishikawa, Atsushi Yin, Xiaobo Zhang, Xiang TI Hybrid Photonic - Plasmonic Crystal Nanocavities SO ACS NANO LA English DT Article DE optical nanocavity; photonic crystal; surface plasmon polariton; hybrid plasmonic mode ID ENHANCEMENT; MICROCAVITY; LASERS; CAVITY; SERS AB We propose a hybrid optical nanocavity consisting of photonic crystals coupled to a metal surface with a nanoscale air gap between. The hybridization of photonic crystal modes and, surface plasmons across the gap forms hybrid cavity modes, which are highly confined in the low-loss air gap region. Deep subwavelength mode volume and high quality factor are demonstrated at telecommunication wavelength, resulting in an extremely large Q/V-m ratio of 60 000 lambda(-3): This new type of high-Q/V-m, broad-band hybrid nanocavity opens up opportunities for various applications in enhanced light-matter interactions. C1 [Yang, Xiaodong; Yin, Xiaobo; Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Yang, Xiaodong; Ishikawa, Atsushi; Yin, Xiaobo; Zhang, Xiang] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA. RP Zhang, X (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM xiang@berkeley.edu RI Yin, Xiaobo/A-4142-2011; Zhang, Xiang/F-6905-2011; Ishikawa, Atsushi/J-3649-2015 OI Ishikawa, Atsushi/0000-0003-1473-6281 FU U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 36 TC 55 Z9 57 U1 11 U2 105 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 EI 1936-086X J9 ACS NANO JI ACS Nano PD APR PY 2011 VL 5 IS 4 BP 2831 EP 2838 DI 10.1021/nn1033482 PG 8 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100048 PM 21384850 ER PT J AU Forrey, C Yager, KG Broadaway, SP AF Forrey, Christopher Yager, Kevin G. Broadaway, Samuel P. TI Molecular Dynamics Study of the Role of the Free Surface on Block Copolymer Thin Film Morphology and Alignment SO ACS NANO LA English DT Article DE block copolymer; thin film morphology; lamellar alignment; molecular dynamics (MD); simulation ID SYMMETRIC DIBLOCK COPOLYMERS; MONTE-CARLO SIMULATIONS; DRUG-RELEASE; PHOTONIC GELS; ORIENTATION; COATINGS; TEMPERATURE; MEMBRANES; KINETICS AB Next-generation applications of block copolymer thin films will require a better understanding of the driving forces unique to thin film coatings, specifically time arising from the polymer-air Interface. Previous modeling studies of film morphology have treated rigidly confined films, neglecting free surface considerations altogether. We report in this article the first systematic molecular dynamics investigation of block copolymer thin film ordering for unconfined films. We investigate the molecular basis of the formation of a number of experimentally relevant coating features, including surface islands and vertical lamellae.. Surface islands are found to form in response to film incommensurability, whereas commensurability considerations are insufficient to explain vertical lamellar formation. Dynamics of lamellar formation presented herein demonstrate that vertical lamellar orientation Is' Initiated In the surface regions of the film, most strikingly at the free surface. We conclude that the free surface plays a pivotal role In the free energy balance determining overall film morphology, and that confinement models provide an incomplete explanation of the physical basis of morphology selection In block copolymer coatings. C1 [Forrey, Christopher] US FDA, Ctr Devices & Radiol Hlth, Rockville, MD 20857 USA. [Yager, Kevin G.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Broadaway, Samuel P.] Wesleyan Univ, Dept Math & Comp Sci, Middletown, CT 06459 USA. RP Forrey, C (reprint author), US FDA, Ctr Devices & Radiol Hlth, Rockville, MD 20857 USA. EM christopher.forrey@fda.hhs.gov RI Yager, Kevin/F-9804-2011 OI Yager, Kevin/0000-0001-7745-2513 FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX We thank the Division of Electrical and Software Engineering (FDA) for use of the high performance computing facilities and the Division of Imaging and Applied Mathematics (FDA) for computational time. We also thank A. Bosse (NIST) and D. Saylor (FDA) for providing insightful comments. Research carried out in part at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 36 TC 16 Z9 16 U1 1 U2 34 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 APR PY 2011 VL 5 IS 4 BP 2895 EP 2907 DI 10.1021/nn103502a PG 13 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100055 PM 21395316 ER PT J AU Tian, P Zhang, YH Senevirathne, K Brock, SL Dixit, A Lawes, G Billinge, SJL AF Tian, Peng Zhang, Yanhua Senevirathne, Keerthi Brock, Stephanie L. Dixit, Ambesh Lawes, Gavin Billinge, Simon J. L. TI Diverse Structural and Magnetic Properties of Differently Prepared MnAs Nanoparticles SO ACS NANO LA English DT Article DE MnAs; structure; magnetic; PDF; nanoparticle ID PAIR DISTRIBUTION FUNCTION; POWDER DIFFRACTION; DETECTOR AB Discrete nanoparticles of MnAs with distinct magnetostructural properties have been prepared by small modifications of solution-phase arrested precipitation reactions. Rietveld and X-ray atomic pair distribution function based approaches were used to explore the evolution of the structure of the samples with temperature, and these data were compared to the magnetic response measured with ac susceptibility. Relative to, a, bulk standard, one type of MnAs nanoparticles was found to demonstrate similar but smaller Structural transitions and corresponding magnetic changes. However, both magnetic and structural transitions In the second type of nanoparticles are strongly suppressed. C1 [Zhang, Yanhua; Senevirathne, Keerthi; Brock, Stephanie L.] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA. [Tian, Peng] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Dixit, Ambesh; Lawes, Gavin] Wayne State Univ, Dept Phys, Detroit, MI 48201 USA. [Billinge, Simon J. L.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. [Billinge, Simon J. L.] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Brock, SL (reprint author), Wayne State Univ, Dept Chem, Detroit, MI 48202 USA. EM sbrock@chem.wayne.edu; sb2896@columbia.edu RI Dixit, Ambesh/E-4499-2010; OI Brock, Stephanie/0000-0002-0439-302X; Zhang, Yanhua/0000-0002-4477-7570 FU National Science Foundation (NSF) [DMR-0703940, DMR-0701161, DMR-0644823]; DOE [DE-AC02-06CH11357] FX We thank P. Juhas, C. Farrow, and E. Bozin for assistance with the experimental setup and data collection. Work in the Billinge group was supported by the National Science Foundation (NSF) through grant DMR-0703940. Work in the Brock group was supported by NSF through grant DMR-0701161. Work in the Lawes group was supported by the NSF through grant DMR-0644823. The APS at Argonne National Laboratory is supported under DOE contract No. DE-AC02-06CH11357. NR 22 TC 8 Z9 9 U1 2 U2 16 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 EI 1936-086X J9 ACS NANO JI ACS Nano PD APR PY 2011 VL 5 IS 4 BP 2970 EP 2978 DI 10.1021/nn200020r PG 9 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100064 PM 21366350 ER PT J AU McKenna, KP Koller, D Sternig, A Siedl, N Govind, N Sushko, PV Diwald, O AF McKenna, Keith P. Koller, David Sternig, Andreas Siedl, Nicolas Govind, Niranjan Sushko, Peter V. Diwald, Oliver TI Optical Properties of Nanocrystal Interfaces in Compressed MgO Nanopowders SO ACS NANO LA English DT Article DE nanocrystals; nanopowders; metal oxide; optical absorption; first-principles calculations ID SENSITIZED SOLAR-CELLS; SURFACE; ELECTRON; POWDERS; OXIDE; BOUNDARIES; PARTICLES; NANOCUBES; ENERGIES; DYNAMICS AB The optical properties and charge trapping phenomena observed on oxide nanocrystal ensembles can be strongly influenced by the presence of nanocrystal interfaces. MgO powders represent a convenient system to study these effects due to the well-defined shape and controllable size distributions of MgO nanocrystals. The spectroscopic properties of nanocrystal interfaces are investigated by monitoring the dependence of absorption characteristics on the concentration of the interfaces in the nanopowders. The presence of interfaces is found to affect the absorption spectra of nanopowders more significantly than changing the size of the constituent nanocrystals and, thus, leading to the variation of the relative abundance of light-absorbing surface structures. We find a strong absorption band in the 4.0-5.5 eV energy range, which was previously. attributed to surface features of individual nanocrystals, such as corners and edges. These findings are supported by complementary first principles calculations. The possibility to directly address such interfaces by tuning the energy of excitation may provide new means for functionalization and chemical activation of nanostructures and can help improve performance and reliability for many nanopowder applications. C1 [McKenna, Keith P.] Tohoku Univ, WPI AIMR, Aoba Ku, Sendai, Miyagi 9808577, Japan. [McKenna, Keith P.; Sushko, Peter V.] UCL, Dept Phys & Astron, London WC1E 6BT, England. [Koller, David; Siedl, Nicolas; Diwald, Oliver] Vienna Univ Technol, Inst Mat Chem, A-1060 Vienna, Austria. [Sternig, Andreas; Siedl, Nicolas; Diwald, Oliver] Univ Erlangen Nurnberg, D-91058 Erlangen, Germany. [Govind, Niranjan] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP McKenna, KP (reprint author), Tohoku Univ, WPI AIMR, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan. EM k.mckenna@ucl.ac.uk; o.diwald@lfg.uni-erlangen.de RI Govind, Niranjan/D-1368-2011; McKenna, Keith/A-5084-2010; Sushko, Peter/F-5171-2013; OI Sushko, Peter/0000-0001-7338-4146; Diwald, Oliver/0000-0002-2425-5281 FU Fonds zur Forderung der Wissenschaftlichen Forschung (FWF) [P19848-N20]; MEXT KAKENHI [2274019]; Royal Society; JSPS; EMSL; Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory; EPSRC [EP/F067496] FX The experimental part of this project has been financially supported by Fonds zur Forderung der Wissenschaftlichen Forschung (FWF) P19848-N20, which is gratefully acknowledged by D.K., A.S., N.S., and O.D. K.M. acknowledges support from MEXT KAKENHI project number 2274019 and helpful discussions with A. Shluger. P.V.S is supported by the Royal Society and the JSPS First program. The TEM image in Figure 1b was kindly provided by Dr. Johannes Bernardi (Vienna University of Technology, USTEM). N.G. acknowledges support from the EMSL Intramural Program. The embedded cluster calculations were performed using the NWChem/Guess program on the Chinook supercomputer 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. This work also made use of the facilities of HECToR, the UK's national high-performance computing service, via our membership in the UK's HPC Materials Chemistry Consortium, which is funded by EPSRC (EP/F067496). NR 33 TC 26 Z9 26 U1 2 U2 27 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 APR PY 2011 VL 5 IS 4 BP 3003 EP 3009 DI 10.1021/nn200062d PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100068 PM 21443262 ER PT J AU Cao, D Pang, P He, J Luo, T Park, JH Krstic, P Nuckolls, C Tang, JY Lindsay, S AF Cao, Di Pang, Pei He, Jin Luo, Tao Park, Jae Hyun Krstic, Predrag Nuckolls, Colin Tang, Jinyao Lindsay, Stuart TI Electronic Sensitivity of Carbon Nanotubes to Internal Water Wetting SO ACS NANO LA English DT Article DE nanofluidics; nanopore; carbon nanotube; biosensor; nanoconfinement; water in nanoscale channels ID FET DEVICES; DNA; TRANSISTORS; TRANSPORT; TRANSLOCATION; CONDUCTIVITY; MEMBRANES; CONTACTS; CHANNEL AB We have constructed devices in which the interior of a single-walled carbon nanotube (SWCNT) field-effect transistor acts as a nanofluidic channel that connects two fluid reservoirs, permitting measurement of the electronic properties of the SWCNT as it Is wetted by an analyte. Wetting of the Inside of the SWCNT by water turns the transistor on, while wetting of the outside has little effect. These observations are consistent with theoretical simulations that show that internal water both generates a large dipole electric field, causing charge polarization of the tube and metal electrodes, and shifts the valence band of the SWCNT, while external water has little effect. This finding may provide a new method to investigate water behavior at nanoscale. This also opens a new avenue for building sensors in which the SWCNT simultaneously functions as a concentrator, nanopore, and extremely sensitive electronic detector, exploiting the enhanced sensitivity of the interior surface. C1 [Cao, Di; Pang, Pei; He, Jin; Luo, Tao; Lindsay, Stuart] Arizona State Univ, Biodesign Inst, Tempe, AZ 85287 USA. [Cao, Di; Pang, Pei; Luo, Tao; Lindsay, Stuart] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. [Lindsay, Stuart] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA. [Park, Jae Hyun; Krstic, Predrag] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Nuckolls, Colin; Tang, Jinyao] Columbia Univ, Dept Chem, New York, NY 10027 USA. RP Lindsay, S (reprint author), Arizona State Univ, Biodesign Inst, Tempe, AZ 85287 USA. EM jinhe@asu.edu; stuart.lindsay@asu.edu RI Tang, Jinyao/I-3851-2012 FU National Human Genome Research Institute [1RC2HG005625-01, 1R21HG004770-01]; Arizona Technology Enterprises; Biodesign Institute; Office of Science of the U.S. Department of Energy [DE-AC05-00OR22725] FX We thank H. Liu and W.S. Song for assistance in the lab. We also acknowledge the use of nanofabrication facilities within the Center for Solid State Science (CSSS) at Arizona State University. This work was supported by the DNA Sequencing Technology Program of the National Human Genome Research Institute (1RC2HG005625-01, 1R21HG004770-01), Arizona Technology Enterprises and the Biodesign Institute. This research used resources of the Oak Ridge Leadership Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. NR 42 TC 13 Z9 13 U1 6 U2 38 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 EI 1936-086X J9 ACS NANO JI ACS Nano PD APR PY 2011 VL 5 IS 4 BP 3113 EP 3119 DI 10.1021/nn200251z PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100081 PM 21452854 ER PT J AU Zammarano, M Maupin, PH Sung, LP Gilman, JW McCarthy, ED Kim, YS Fox, DM AF Zammarano, Mauro Maupin, Paul H. Sung, Li-Piin Gilman, Jeffrey W. McCarthy, Edward D. Kim, Yeon S. Fox, Douglas M. TI Revealing the Interface in Polymer Nanocomposites SO ACS NANO LA English DT Article DE nanocomposite; interface; fluorescence; FRET; confocal microscopy ID RESONANCE ENERGY-TRANSFER; TRANSMISSION ELECTRON-MICROSCOPY; GLASS-TRANSITION TEMPERATURE; FLUORESCENCE MICROSCOPY; CELLULOSE; DISPERSION; MONTMORILLONITE; FLAMMABILITY; EXFOLIATION; POLYSTYRENE AB The morphological characterization of polymer nanocomposites over multiple length scales is a fundamental challenge. Here, we report a technique for high throughput monitoring of Interface and dispersion in polymer nanocomposites based on Forster resonance energy transfer (FRET). Nanofibrillated cellulose (NFC), fluorescently labeled with 5-(4,6-dichlorotriazinyl)-aminofluorescein (FL) and dispersed Into polyethylene (PE) doped with Coumarin 30 (C30), is used as a model system to assess the ability of FRET to evaluate the effect of processing on NFC dispersion in PE. The level of energy transfer and its standard deviation, measured by fluorescence spectroscopy and laser scanning confocal microscopy (LSCM), are exploited to monitor the extent of interface formation and composite homogeneity, respectively. FRET algorithms are used to generate color-coded images for a real-space observation of energy transfer efficiency. These images reveal Interface formation at a nanoscale while probing a macroscale area that is large enough to be representative of the entire sample. The unique ability of this technique to simultaneously provide orientation/spatial information at a macroscale and nanoscale features, encoded in the FRET signal, provides a new powerful tool for structure-property-processing investigation in polymer nanocomposites. C1 [Zammarano, Mauro; Fox, Douglas M.] American Univ, Dept Chem, Washington, DC 20016 USA. [Zammarano, Mauro; Sung, Li-Piin; Kim, Yeon S.] NIST, Engn Lab, Gaithersburg, MD 20899 USA. [Zammarano, Mauro; Gilman, Jeffrey W.; McCarthy, Edward D.] NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA. [Maupin, Paul H.] US DOE, Chem Sci Geosci & Biosci Div, Off Basic Energy Sci, Washington, DC 20585 USA. RP Zammarano, M (reprint author), American Univ, Dept Chem, Washington, DC 20016 USA. EM mzam@nist.gov RI KIM, YEON SEOK/J-5864-2012; OI Zammarano, Mauro/0000-0002-5145-7110 FU Air Force office of Scientific Research [F1ATA00236G002]; National Institute of Standards and Technology FX Financial support was provided by the National Institute of Standards and Technology and the Air Force office of Scientific Research under Award No. F1ATA00236G002. NR 43 TC 27 Z9 28 U1 4 U2 61 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 APR PY 2011 VL 5 IS 4 BP 3391 EP 3399 DI 10.1021/nn102951n PG 9 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 753CJ UT WOS:000289742100115 PM 21410222 ER PT J AU Higashide, W Li, YC Yang, YF Liao, JC AF Higashide, Wendy Li, Yongchao Yang, Yunfeng Liao, James C. TI Metabolic Engineering of Clostridium cellulolyticum for Production of Isobutanol from Cellulose SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID ESCHERICHIA-COLI; GENE; BIOETHANOL; ETHANOL; ELECTROTRANSFORMATION; BIOSYNTHESIS; THERMOCELLUM; IMPROVEMENT; HYDROLYSIS; BIOBUTANOL AB Producing biofuels directly from cellulose, known as consolidated bioprocessing, is believed to reduce costs substantially compared to a process in which cellulose degradation and fermentation to fuel are accomplished in separate steps. Here we present a metabolic engineering example for the development of a Clostridium cellulolyticum strain for isobutanol synthesis directly from cellulose. This strategy exploits the host's natural cellulolytic activity and the amino acid biosynthesis pathway and diverts its 2-keto acid intermediates toward alcohol synthesis. Specifically, we have demonstrated the first production of isobutanol to approximately 660 mg/liter from crystalline cellulose by using this microorganism. C1 [Higashide, Wendy; Liao, James C.] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA. [Higashide, Wendy; Li, Yongchao; Yang, Yunfeng; Liao, James C.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Liao, James C.] Univ Calif Los Angeles, Inst Genom & Prote, Los Angeles, CA 90095 USA. RP Liao, JC (reprint author), Univ Calif Los Angeles, Dept Chem & Biomol Engn, 5531 Boelter Hall,420 Westwood Plaza, Los Angeles, CA 90095 USA. EM liaoj@seas.ucla.edu RI Li, Yongchao/H-6321-2011; Yang, Yunfeng/H-9853-2013 OI Yang, Yunfeng/0000-0001-8274-6196 FU BioEnergy Science Center (BESC) at Oak Ridge National Laboratory, a Department of Energy Bioenergy Research Center; UCLA-DOE Institute for Genomics and Proteomics FX This work was supported in part by the BioEnergy Science Center (BESC) at Oak Ridge National Laboratory, a Department of Energy Bioenergy Research Center, and by the UCLA-DOE Institute for Genomics and Proteomics. NR 34 TC 124 Z9 130 U1 6 U2 57 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 APR PY 2011 VL 77 IS 8 BP 2727 EP 2733 DI 10.1128/AEM.02454-10 PG 7 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 749IU UT WOS:000289459300020 PM 21378054 ER PT J AU Singer, E Webb, EA Nelson, WC Heidelberg, JF Ivanova, N Pati, A Edwards, KJ AF Singer, Esther Webb, Eric A. Nelson, William C. Heidelberg, John F. Ivanova, Natalia Pati, Amrita Edwards, Katrina J. TI Genomic Potential of Marinobacter aquaeolei, a Biogeochemical "Opportunitroph" SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID SP-NOV.; MODERATE HALOPHILE; PSEUDOMONAS-STUTZERI; OXIDIZING BACTERIUM; MARINE-ENVIRONMENT; HYDROTHERMAL-VENT; CHINA SEA; SEQUENCE; PHOSPHONATES; DEEP AB The genus of Marinobacter is one of the most ubiquitous in the global oceans and assumed to significantly impact various biogeochemical cycles. The genome structure and content of Marinobacter aquaeolei VT8 was analyzed and compared with those from other organisms with diverse adaptive strategies. Here, we report the many "opportunitrophic" genetic characteristics and strategies that M. aquaeolei has adopted to promote survival under various environmental conditions. Genome analysis revealed its metabolic potential to utilize oxygen and nitrate as terminal electron acceptors, iron as an electron donor, and urea, phosphonate, and various hydrocarbons as alternative N, P, and C sources, respectively. Miscellaneous sensory and defense mechanisms, apparently acquired via horizontal gene transfer, are involved in the perception of environmental fluctuations and antibiotic, phage, toxin, and heavy metal resistance, enabling survival under adverse conditions, such as oil-polluted water. Multiple putative integrases, transposases, and plasmids appear to have introduced additional metabolic potential, such as phosphonate degradation. The genomic potential of M. aquaeolei and its similarity to other opportunitrophs are consistent with its cosmopolitan occurrence in diverse environments and highly variable lifestyles. C1 [Singer, Esther; Edwards, Katrina J.] Univ So Calif, Geomicrobiol Grp, Dept Earth Sci, Los Angeles, CA USA. [Webb, Eric A.; Nelson, William C.; Heidelberg, John F.; Edwards, Katrina J.] Univ So Calif, Dept Biol Sci, Marine Environm Biol Sect, Los Angeles, CA 90089 USA. [Ivanova, Natalia; Pati, Amrita] Joint Genome Inst, Dept Energy, Walnut Creek, CA USA. RP Edwards, KJ (reprint author), 3616 Trousdale Pkwy,AHF 203, Los Angeles, CA 90089 USA. EM kje@usc.edu RI Nelson, William/E-9263-2016; OI Nelson, William/0000-0002-1873-3929; Heidelberg, John/0000-0003-0673-3224 FU National Science Foundation [OCE-53-4813-7700]; Wrigley Institute FX This work was supported by the National Science Foundation (OCE-53-4813-7700 to K.J.E.) and the Wrigley Institute summer fellowship program 2009. NR 72 TC 38 Z9 39 U1 2 U2 25 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 APR PY 2011 VL 77 IS 8 BP 2763 EP 2771 DI 10.1128/AEM.01866-10 PG 9 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 749IU UT WOS:000289459300024 PM 21335390 ER PT J AU Kravitz, B Robock, A Boucher, O Schmidt, H Taylor, KE Stenchikov, G Schulz, M AF Kravitz, Ben Robock, Alan Boucher, Olivier Schmidt, Hauke Taylor, Karl E. Stenchikov, Georgiy Schulz, Michael TI The Geoengineering Model Intercomparison Project (GeoMIP) SO ATMOSPHERIC SCIENCE LETTERS LA English DT Article DE geoengineering; climate modeling; CMIP5; model evaluation; SRM; monsoon ID EARTHS RADIATION BALANCE; CLIMATE-CHANGE; SCHEMES; IMPACT AB To evaluate the effects of stratospheric geoengineering with sulphate aerosols, we propose standard forcing scenarios to be applied to multiple climate models to compare their results and determine the robustness of their responses. Thus far, different modeling groups have used different forcing scenarios for both global warming and geoengineering, complicating the comparison of results. We recommend four experiments to explore the extent to which geoengineering might offset climate change projected in some of the Climate Model Intercomparison Project 5 experiments. These experiments focus on stratospheric aerosols, but future experiments under this framework may focus on different means of geoengineering. Copyright (C) 2011 Royal Meteorological Society and Crown Copyright C1 [Kravitz, Ben; Robock, Alan; Stenchikov, Georgiy] Rutgers State Univ, Dept Environm Sci, New Brunswick, NJ 08901 USA. [Boucher, Olivier] Met Off Hadley Ctr, Exeter, Devon, England. [Schmidt, Hauke] Max Planck Inst Meteorol, Hamburg, Germany. [Taylor, Karl E.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA. [Stenchikov, Georgiy] King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia. [Schulz, Michael] Lab Sci Climat & Environm, Gif Sur Yvette, France. RP Kravitz, B (reprint author), Rutgers State Univ, Dept Environm Sci, 14 Coll Farm Rd, New Brunswick, NJ 08901 USA. EM benkravitz@envsci.rutgers.edu RI Boucher, Olivier/J-5810-2012; Boucher, Olivier/K-7483-2012; Schmidt, Hauke/J-4469-2013; Georgiy, Stenchikov/J-8569-2013; Kravitz, Ben/P-7925-2014; Schulz, Michael/A-6930-2011; Robock, Alan/B-6385-2016; Taylor, Karl/F-7290-2011 OI Boucher, Olivier/0000-0003-2328-5769; Stenchikov, Georgiy Lvovich/0000-0001-9033-4925; Robock, Alan/0000-0002-6319-5656; Boucher, Olivier/0000-0003-2328-5769; Schmidt, Hauke/0000-0001-8271-6456; Kravitz, Ben/0000-0001-6318-1150; Schulz, Michael/0000-0003-4493-4158; Taylor, Karl/0000-0002-6491-2135 FU NSF [ATM-0730452]; DECC/Defra Integrated Climate Programme [GA01101]; European Commission; Department of Energy; DOE at Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We thank Bjorn Stevens, Drew Shindell, Jerry Meehl, Ron Stouffer, Andy Jones, Jim Haywood, Phil Rasch, and Marco Giorgetta for their suggestions in improving this document and the outlined scenarios therein. We also thank the reviewers for their thorough, helpful comments. This document also benefited from extensive discussion with attendees of the Strategic Workshop on Geoengineering Research, Hamburg, Germany, 25-26 November 2009, and subsequent discussions with researchers from the IMPLICC project. We thank Luke Oman and Allison Marquardt for their past work on and assistance with our research. The work of B. Kravitz, A. Robock, and G. Stenchikov is supported by NSF grant ATM-0730452. The work of O. Boucher is supported by DECC/Defra Integrated Climate Programme (GA01101). The work of H. Schmidt and M. Schulz is supported by the European Commission within the FP7 project IMPLICC. K. E. Taylor's contribution was supported by the Department of Energy's (DOE's) Global and Regional Climate Modeling Program, and this work was performed under the auspices of the DOE at Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. NR 25 TC 108 Z9 111 U1 5 U2 45 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 1530-261X J9 ATMOS SCI LETT JI Atmos. Sci. Lett. PD APR-JUN PY 2011 VL 12 IS 2 BP 162 EP 167 DI 10.1002/asl.316 PG 6 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA 751WU UT WOS:000289649200002 ER PT J AU Borole, AP Hamilton, CY Vishnivetskaya, TA AF Borole, Abhijeet P. Hamilton, Choo Y. Vishnivetskaya, Tatiana A. TI Enhancement in current density and energy conversion efficiency of 3-dimensional MFC anodes using pre-enriched consortium and continuous supply of electron donors SO BIORESOURCE TECHNOLOGY LA English DT Article DE Microbial fuel cell; Shear flow; Biofilm-forming; Direct electron transfer; Electro-active ID MICROBIAL FUEL-CELLS; INTERNAL RESISTANCE; IMPEDANCE SPECTROSCOPY; ELECTRICITY-GENERATION; CATHODE; PERFORMANCE; BIOFILMS AB Using a pre-enriched microbial consortium as the inoculum and continuous supply of carbon source, improvement in performance of a three-dimensional, flow-through MFC anode utilizing ferricyanide cathode was investigated. The power density increased from 170 W/m(3) (1800 mW/m(2)) to 580 W/m(3) (6130 mW/m(2)), when the carbon loading increased from 2.5 g/1-day to 50 g/1-day. The coulombic efficiency (CE) decreased from 90% to 23% with increasing carbon loading. The CEs are among the highest reported for glucose and lactate as the substrate with the maximum current density reaching 15.1 A/m(2). This suggests establishment of a very high performance exoelectrogenic microbial consortium at the anode. A maximum energy conversion efficiency of 54% was observed at a loading of 2.5 g/1-day. Biological characterization of the consortium showed presence of Burkholderiales and Rhodocyclales as the dominant members. Imaging of the biofilms revealed thinner biofilms compared to the inoculum MFC, but a 1.9-fold higher power density. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Borole, Abhijeet P.; Vishnivetskaya, Tatiana A.] Oak Ridge Natl Lab, BioSci Div, Oak Ridge, TN 37831 USA. [Hamilton, Choo Y.] Univ Tennessee, Knoxville, TN 37996 USA. RP Borole, AP (reprint author), Oak Ridge Natl Lab, BioSci Div, POB 2008, Oak Ridge, TN 37831 USA. EM borolea@ornl.gov RI Borole, AP/F-3933-2011; Vishnivetskaya, Tatiana/A-4488-2008; OI Vishnivetskaya, Tatiana/0000-0002-0660-023X; Borole, Abhijeet/0000-0001-8423-811X FU Oak Ridge National Laboratory (ORNL); UT-Battelle, Inc. [DE-AC05-000R22725] FX The financial support from the Oak Ridge National Laboratory (ORNL) Laboratory Director's Research and Development Program is gratefully acknowledged. ORNL is managed by UT-Battelle, Inc. via a contract #DE-AC05-000R22725 for the US Department of Energy. The authors would like to thank Jenny Morrell-Falvey for assistance with biofilm imaging. NR 27 TC 22 Z9 22 U1 3 U2 25 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0960-8524 J9 BIORESOURCE TECHNOL JI Bioresour. Technol. PD APR PY 2011 VL 102 IS 8 BP 5098 EP 5104 DI 10.1016/j.biortech.2011.01.045 PG 7 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA 752PA UT WOS:000289703400021 PM 21334884 ER PT J AU Shih, CJ Lupoi, JS Smith, EA AF Shih, Chien-Ju Lupoi, Jason S. Smith, Emily A. TI Raman spectroscopy measurements of glucose and xylose in hydrolysate: Role of corn stover pretreatment and enzyme composition SO BIORESOURCE TECHNOLOGY LA English DT Article DE Raman spectroscopy; Glucose quantitation; Xylose quantitation; Enzymatic hydrolysate; Biofuels ID LIGNOCELLULOSIC BIOMASS; ACID PRETREATMENT; AQUEOUS AMMONIA; CELL-WALLS; TECHNOLOGIES; SUGARS; SACCHARIFICATION; PHLOROGLUCINOL; FERMENTATION; FEATURES AB The effect of corn stover pretreatment on glucose quantitation in hydrolysate using Raman spectroscopy is evaluated. Dilute sulfuric-acid pretreatment results in a 20 mg mL(-1) glucose limit of detection in hydrolysate. Soaking in aqueous ammonia pretreatment produces a 4 mg mL(-1) limit of detection. Water, ethanol or hexane extraction of corn stover reduces the spectral background that limits glucose detection in dilute acid hydrolysate. Additionally. a Raman spectroscopy multi-peak fitting method is presented to simultaneously measure glucose and xylose concentration in hydrolysate. This method yields a 6.1% average relative standard error at total saccharide concentrations above 45 mg mL(-1). When only cellulase is present, glucose and xylose yield were measured by Raman spectroscopy to be 32 +/- 4 and 7.0 +/- 0.8 mg mL(-1), respectively. When both cellulase and hemicellulase were present, xylose yield increased to 18.0 +/- 0.5 mg mL(-1). Enzymatic or colorimetric assays confirmed the validity of the Raman spectroscopy results. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Smith, Emily A.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. US DOE, Ames Lab, Ames, IA 50011 USA. RP Smith, EA (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM esmith1@iastate.edu OI Smith, Emily/0000-0001-7438-7808 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences through the Ames Laboratory; U.S. Department of Energy by Iowa State University [DE-AC02-07CH11358] FX This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences through the Ames Laboratory. The Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. The authors are grateful to Dr. Kenneth J. Moore for providing corn stover and Danisco US Inc., Genencor Division, for providing the Accellerase enzymes. NR 40 TC 11 Z9 12 U1 0 U2 24 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0960-8524 J9 BIORESOURCE TECHNOL JI Bioresour. Technol. PD APR PY 2011 VL 102 IS 8 BP 5169 EP 5176 DI 10.1016/j.biortech.2011.01.043 PG 8 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA 752PA UT WOS:000289703400030 PM 21324678 ER PT J AU Krtolica, A Larocque, N Genbacev, O Ilic, D Coppe, JP Patil, CK Zdravkovic, T McMaster, M Campisi, J Fisher, SJ AF Krtolica, Ana Larocque, Nick Genbacev, Olga Ilic, Dusko Coppe, Jean-Philippe Patil, Christopher K. Zdravkovic, Tamara McMaster, Michael Campisi, Judith Fisher, Susan J. TI GRO alpha regulates human embryonic stem cell self-renewal or adoption of a neuronal fate SO DIFFERENTIATION LA English DT Article DE hESC; Pluripotency; Polarization; Cytokine; Cell-cell interaction; CXCL1 ID HUMAN ENDOMETRIAL CELLS; FREE CULTURE; EXPRESSION; DIFFERENTIATION; DERIVATION; LINES; MASS; PROTEINS; MELANOMA; PROTEOME AB Previously we reported that feeders formed from human placental fibroblasts (hPFs) support derivation and long-term self-renewal of human embryonic stem cells (hESCs) under serum-free conditions. Here, we show, using antibody array and ELISA platforms, that hPFs secrete similar to 6-fold higher amounts of the CXC-type chemokine, GRO alpha, than IMR 90, a human lung fibroblast line, which does not support hESC growth. Furthermore, immunocytochemistry and immunoblot approaches revealed that hESCs express CXCR, a GRO alpha receptor. We used this information to develop defined culture medium for feeder-free propagation of hESCs in an undifferentiated state. Cells passaged as small aggregates and maintained in the GRO alpha-containing medium had a normal karyotype, expressed pluripotency markers, and exhibited apical-basal polarity, i.e., had the defining features of pluripotent hESCs. They also differentiated into the three primary (embryonic) germ layers and formed teratomas in immunocompromised mice. hESCs cultured as single cells in the GRO alpha-containing medium also had a normal karyotype, but they down regulated markers of pluripotency, lost apical-basal polarity, and expressed markers that are indicative of the early stages of neuronal differentiation-beta III tubulin, vimentin, radial glial protein, and nestin. These data support our hypothesis that establishing and maintaining cell polarity is essential for the long-term propagation of hESCs in an undifferentiated state and that disruption of cell-cell contacts can trigger adoption of a neuronal fate. (C) 2011 International Society of Differentiation. Published by Elsevier Ltd. All rights reserved. C1 [Larocque, Nick; Genbacev, Olga; Zdravkovic, Tamara; McMaster, Michael; Fisher, Susan J.] Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, San Francisco, CA 94143 USA. [Larocque, Nick; Genbacev, Olga; Zdravkovic, Tamara; McMaster, Michael; Fisher, Susan J.] Univ Calif San Francisco, Ctr Reprod Sci, San Francisco, CA 94143 USA. [Krtolica, Ana; Ilic, Dusko] StemLifeLine Inc, SLL Sci, San Carlos, CA 94070 USA. [Fisher, Susan J.] Univ Calif San Francisco, Dept Anat, San Francisco, CA 94143 USA. [McMaster, Michael; Fisher, Susan J.] Univ Calif San Francisco, Eli & Edythe Broad Ctr Regenerat Med & Stem Cell, San Francisco, CA 94143 USA. [McMaster, Michael; Fisher, Susan J.] Univ Calif San Francisco, Human Embryon Stem Cell Program, San Francisco, CA 94143 USA. [Fisher, Susan J.] Univ Calif San Francisco, Sandler Moore Mass Spectrometry Facil, San Francisco, CA 94143 USA. [Coppe, Jean-Philippe; Patil, Christopher K.; Campisi, Judith] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Patil, Christopher K.; Campisi, Judith] Buck Inst Age Res, Novato, CA 94945 USA. RP Fisher, SJ (reprint author), Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, 513 Parnassus Ave,Box 0556, San Francisco, CA 94143 USA. EM sfisher@cgl.ucsf.edu FU California Institute for Regenerative Medicine [RC1-00113, RL1-00648]; NIH [R01-AG009909, T32-000266]; StemLifeLine, Inc. FX This work was supported by grants from the California Institute for Regenerative Medicine (RC1-00113 and RL1-00648); JPC and CP were supported by NIH grants R01-AG009909 and T32-000266. Partial funding was also provided by StemLifeLine, Inc. NR 41 TC 17 Z9 17 U1 1 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4681 J9 DIFFERENTIATION JI Differentiation PD APR PY 2011 VL 81 IS 4 BP 222 EP 232 DI 10.1016/j.diff.2011.01.001 PG 11 WC Cell Biology; Developmental Biology SC Cell Biology; Developmental Biology GA 750ON UT WOS:000289557900003 PM 21396766 ER PT J AU Som, S Longman, DE AF Som, S. Longman, D. E. TI Numerical Study Comparing the Combustion and Emission Characteristics of Biodiesel to Petrodiesel SO ENERGY & FUELS LA English DT Article ID NOX EMISSIONS; DIESEL FUEL; SPRAY; OXIDATION; IGNITION; ENGINE; MODEL; TEMPERATURE; PRESSURES; CHEMISTRY AB Combustion and emission characteristics Of compression ignition engines strongly depend upon inner-nozzle flow and spray behavior. These processes control the fuel-air mixing, which in turn is critical for the combustion process. Previous studies by us highlighted the differences in the physical and chemical properties of petrodiesel and biodiesel, which significantly altered the inner-nozzle flow and spray structure. The current study is another step in this direction to gain a fundamental understanding on the influence of fuel properties on the combustion and emission characteristics of the compression ignition engine. n-Heptane and methyl butanoate were selected as surrogates for diesel and biodiesel fuels, respectively, because the chemical: kinetic pathways were well-understood. Liquid length and flame lift-off length for diesel and biodiesel fuels were validated against data available in the literature. Liquid lengths were always higher for biodiesel because of its higher heat of vaporization, which resulted in increased interplay between spray and combustion processes under all conditions investigated. Ambient: air entrainment was also lower for biodiesel mainly because of slower atomization and breakup. The mechanism for flame stabilization is further analyzed by estimating the turbulent burning velocity for both of the fuels. This analysis revealed that neither,flame propagation nor isolated ignition kernels upstream and detached from high-temperature regions can be the mechanism for flame stabilization. Flame propagation speeds were observed to be similar for both fuels. Biodiesel predicted lower soot concentrations, which were also reflected in reduced C(2)H(2) mole fractions. Although prompt NO(x) was higher for biodiesel, total NO(x) was lower because of reduced thermal NO(x). The ignition delay and NO(x) emissions predicted by these simulations do. not agree with trends reported in the literature; hence, this study highlights the need for better fuel surrogates for diesel and biodiesel fuels. C1 [Som, S.; Longman, D. E.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. RP Som, S (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA. EM ssom@anl.gov FU Office of Science, U.S. Department of Energy, Argonne [DE-AC02-06CH11357] FX The submitted manuscript was created by U Chicago Argonne, LLC, operator of Argonne National Laboratory (Argonne). Argonne, an Office of Science, U.S. Department of Energy, laboratory, is operated under Contract DE-AC02-06CH11357. The authors acknowledge Dr. Rolf Reitz and Ms. Jessica Brakora at the Engine Research Centre at University of Wisconsin, Madison, WI, for sharing the MB and ERC-Bio mechanisms used in the current study. NR 60 TC 23 Z9 23 U1 1 U2 15 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 APR PY 2011 VL 25 IS 4 BP 1373 EP 1386 DI 10.1021/ef101438u PG 14 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 752NC UT WOS:000289697700006 ER PT J AU Anand, K Ra, Y Reitz, RD Bunting, B AF Anand, K. Ra, Y. Reitz, R. D. Bunting, B. TI Surrogate Model Development for Fuels for Advanced Combustion Engines SO ENERGY & FUELS LA English DT Article ID DIESEL FUELS; JET; VAPORIZATION; MIXTURES AB The fuels used in internal-combustion engines are complex mixtures Of a multitude of different types of hydrocarbon species. Attempting numerical simulations of combustion of real fuels with all of the hydrocarbon species included is highly unrealistic. Thus, a surrogate model approach is generally adopted, which involves choosing a few representative hydrocarbon species whose overall behavior mimics the characteristics of the target fuel The present study proposes surrogate models for the nine fuels for advanced combustion engines (FACE) that have been developed for studying low emission, high efficiency advanced diesel engine concepts. The surrogate compositions for the fuels are arrived at by simulating their distillation profiles to within a maximum absolute error of similar to 4% using a discrete multi-component (DMC) fuel model that has been incorporated in the multi-dimensional computational fluid dynamics (CFD) code,: The simulated surrogate compositions cover the range and rneasured concentrations of the various hydrocarbon classes present in the fuels. The fidelity of the surrogate fuel models is judged on the basis of matching their specific gravity, lower heating value, hydrogen/carbon (H/C) ratio, cetane number, and cetane index with the measured data for all nine FACE fuels. C1 [Anand, K.; Ra, Y.; Reitz, R. D.] Univ Wisconsin, Engine Res Ctr, Madison, WI 53706 USA. [Bunting, B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Anand, K (reprint author), Univ Wisconsin, Engine Res Ctr, Madison, WI 53706 USA. EM krishnasamy@wisc.edu NR 42 TC 29 Z9 29 U1 0 U2 17 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 APR PY 2011 VL 25 IS 4 BP 1474 EP 1484 DI 10.1021/ef101719a PG 11 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 752NC UT WOS:000289697700015 ER PT J AU Lam, PS Sokhansanj, S Bi, XT Lim, CJ Melin, S AF Lam, Pak Sui Sokhansanj, Shahab Bi, Xiaotao Lim, C. Jim Melin, Staffan TI Energy Input and Quality of Pellets Made from Steam-Exploded Douglas Fir (Pseudotsuga menziesii) SO ENERGY & FUELS LA English DT Article ID LOGGING RESIDUES; PRETREATMENT; WOOD; CELLULOSE; BIOMASS; SAWDUST; STORAGE; BARK AB Ground softwood Douglas for (Pseudotsuga menziesii) was treated with pressurized saturated steam at 200-220 degrees C (1.6.-2.4 MPa) for 5-10 min in a sealed container. The contents of the container were released to the atmosphere for a sudden decompression. The steam-exploded wood particles were dried to 10% moisture content and pelletized in a single-piston-cylinder system. The pellets were characterized for,their mechanical strength, chemical, composition, and moisture sorption. The steam-treated wood required 12-81% more energy to compact into pellets than the untreated wood. Pellets made from steam-treated wood had a breaking strength 1.4-3.3 times the strength of pellets made from untreated wood. Steam-treated pellets had a reduced equilibrium moisture content of 2-4% and, a reduced expansion after pelletization. There was a slight increase in the high heating value from 18.94 to 20.09 MJ/kg for the treated samples. Steam-treated pellets' exhibited a higher lengthwise rigidity compared to untreated pellets. C1 [Lam, Pak Sui; Bi, Xiaotao; Lim, C. Jim; Melin, Staffan] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada. [Sokhansanj, Shahab] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Lam, PS (reprint author), Univ British Columbia, Dept Chem & Biol Engn, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada. EM plam@chbe.ubc.ca FU Natural Science and Engineering Council of Canada; Wood Pellet Association of Canada; British Columbia Ministry of Forest and Range; Agricultural Biorefining Innovative Network; Oak Ridge National Laboratory; Office of Biomass Program; United States Department of Energy; University of British Columbia FX This research was made possible by financial support in part by the Natural Science and Engineering Council of Canada, Wood Pellet Association of Canada, British Columbia Ministry of Forest and Range, and Agricultural Biorefining Innovative Network. The co-author Shahab Sokhansanj was supported by the Oak Ridge National Laboratory and the Office of Biomass Program, United States Department of Energy, while conducting this research at the University of British Columbia. The authors acknowledge Jeff Hoi, a 4th year material engineering student at the University of British Columbia, for his help in operating the pellet-making equipment. NR 33 TC 40 Z9 42 U1 2 U2 28 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 APR PY 2011 VL 25 IS 4 BP 1521 EP 1528 DI 10.1021/ef101683s PG 8 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 752NC UT WOS:000289697700020 ER PT J AU Kobayashi, T Kohn, B Holmes, L Faulkner, R Davis, M Maciel, GE AF Kobayashi, Takeshi Kohn, Benjamin Holmes, Lesley Faulkner, Rebecca Davis, Mark Maciel, Gary E. TI Molecular-Level Consequences of Biomass Pretreatment by Dilute Sulfuric Acid at Various Temperatures SO ENERGY & FUELS LA English DT Article ID NUCLEAR-MAGNETIC-RESONANCE; STATE C-13 NMR; COLORADO BLUE SPRUCE; WHITE-ROT DECAY; MAGIC-ANGLE; HIGH-RESOLUTION; LIGNOCELLULOSIC MATERIALS; CROSS POLARIZATION; WOOD DECAY; ENZYMATIC SACCHARIFICATION AB Ex situ room-temperature C-13 nuclear magnetic resonance (NMR) measurements are reported on powdered poplar wood that has been pretreated with dilute sulfuric acid (concentrations up to 1 wt %) for times ranging up to 20 mm and at temperatures of 120, 130, 140, and 150 degrees C. There are significant, albeit not dramatic, changes in the measured NMR spectra of the biomass as result of dilute sulfuric acid treatment. Values of T-1 for C-13 and as well as T-CH and T-1 rho H, were measured for lignin peaks and cellulose peaks in the C-13 NMR spectra, as potential indicators of the degree of atomic-level motion. For lignin components, one finds a trend to larger T-CH values as the treatment time or H2SO4 concentration is increased for treatment temperatures of 120 and 130 degrees C; however, for treatment temperatures of 140 and 150 degrees C, T-CH apparently decreases as the treatment time is increased. This higher temperature T-CH behavior implies that the lignin may actually become more rigid at later stages of treatment at temperatures >= 140 degrees C, which can be explained by cleavages of ether linkages of lignin and subsequent formation of new linkages, i.e., lignin recondensation. T-1C and T-1H measurements are consistent with this interpretation. The relationships between atomic-level mobility of lignin in biomass and treatment temperature is consistent with published relationships between the sugar yield and treatment temperature. The key role of acid treatment as a pretreatment for enzymatic digestion is evident in NMR measurements, including relaxation measurements, even after the treatment. C1 [Kobayashi, Takeshi; Kohn, Benjamin; Holmes, Lesley; Faulkner, Rebecca; Maciel, Gary E.] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. [Davis, Mark] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Maciel, GE (reprint author), Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. EM gary.maciel@colostate.edu OI davis, mark/0000-0003-4541-9852 FU U.S. Department of Energy FX The authors gratefully acknowledge support of this research by the U.S. Department of Energy. NR 66 TC 17 Z9 17 U1 0 U2 25 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 APR PY 2011 VL 25 IS 4 BP 1790 EP 1797 DI 10.1021/ef1017219 PG 8 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 752NC UT WOS:000289697700050 ER PT J AU Price, L Levine, MD Zhou, N Fridley, D Aden, N Lu, HY McNeil, M Zheng, NN Qin, YN Yowargana, P AF Price, Lynn Levine, Mark D. Zhou, Nan Fridley, David Aden, Nathaniel Lu, Hongyou McNeil, Michael Zheng, Nina Qin, Yining Yowargana, Ping TI Assessment of China's energy-saving and emission-reduction accomplishments and opportunities during the 11th Five Year Plan SO ENERGY POLICY LA English DT Article DE China; Energy intensity; Energy efficiency programs ID EFFICIENCY AB From 1980 to 2002, China experienced a 5% average annual reduction in energy consumption per unit of gross domestic product (GDP). With a dramatic reversal of this historic relationship, energy intensity increased 5% per year during 2002-2005. China's 11th Five Year Plan (FYP) set a target of reducing energy intensity by 20% by 2010. This paper assesses selected policies and programs that China has instituted to fulfill the national goal, finding that China made substantial progress and many of the energy-efficiency programs appear to be on track to meet - or in some cases exceed - their energy-saving targets. Most of the Ten Key Projects, the Top similar to 1000 Program, and the Small Plant Closure Program will meet or surpass the 11th FYP savings goals. China's appliance standards and labeling program has become very robust. China has greatly enhanced its enforcement of new building energy standards but energy-efficiency programs for buildings retrofits, as well as the goal of adjusting China's economic structure, are failing. It is important to maintain and strengthen the existing energy-saving policies and programs that are successful while revising programs or adding new policy mechanisms to improve the programs that are not on track to achieve the stated goals. Published by Elsevier Ltd. C1 [Price, Lynn; Levine, Mark D.; Zhou, Nan; Fridley, David; Aden, Nathaniel; Lu, Hongyou; McNeil, Michael; Zheng, Nina; Qin, Yining] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Energy Anal Dept, Berkeley, CA 94720 USA. [Yowargana, Ping] Azure Int, Beijing 100027, Peoples R China. RP Price, L (reprint author), Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Energy Anal Dept, 1 Cyclotron Rd,MS 90R4000, Berkeley, CA 94720 USA. EM LKPrice@lbl.gov NR 53 TC 105 Z9 109 U1 9 U2 63 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4215 J9 ENERG POLICY JI Energy Policy PD APR PY 2011 VL 39 IS 4 BP 2165 EP 2178 DI 10.1016/j.enpol.2011.02.006 PG 14 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 747RF UT WOS:000289336400025 ER PT J AU Levin, T Thomas, VM Lee, AJ AF Levin, Todd Thomas, Valerie M. Lee, Audrey J. TI State-scale evaluation of renewable electricity policy: The role of renewable electricity credits and carbon taxes (vol 39, pg 950, 2010) SO ENERGY POLICY LA English DT Correction C1 [Levin, Todd; Thomas, Valerie M.] Georgia Inst Technol, Sch Ind & Syst Engn, Atlanta, GA 30332 USA. [Thomas, Valerie M.] Georgia Inst Technol, Sch Publ Policy, Atlanta, GA 30332 USA. [Lee, Audrey J.] US DOE, Off Policy & Int Affairs, Washington, DC 20585 USA. RP Levin, T (reprint author), Georgia Inst Technol, Sch Ind & Syst Engn, 765 Ferst Dr NW, Atlanta, GA 30332 USA. EM todd.levin@gatech.edu NR 1 TC 0 Z9 0 U1 1 U2 6 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4215 J9 ENERG POLICY JI Energy Policy PD APR PY 2011 VL 39 IS 4 BP 2216 EP 2216 DI 10.1016/j.enpol.2011.02.001 PG 1 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 747RF UT WOS:000289336400031 ER PT J AU Uhrig, D Schlegel, R Weidisch, R Mays, J AF Uhrig, David Schlegel, Ralf Weidisch, Roland Mays, Jimmy TI Multigraft copolymer superelastomers: Synthesis morphology, and properties SO EUROPEAN POLYMER JOURNAL LA English DT Article DE Thermoplastic elastomer; Graft copolymer; Morphology; Mechanical properties ID DOUBLE-GRAFT-COPOLYMERS; ANIONIC-POLYMERIZATION; MOLECULAR ARCHITECTURE; BRANCH-POINTS; MECHANICAL-PROPERTIES; HYSTERESIS BEHAVIOR; BLOCK-COPOLYMERS; POLYSTYRENE; MODEL; MACROMONOMERS AB The synthesis of well-defined multigraft copolymers having a polydiene backbone with polystyrene side chains is briefly reviewed, with particular focus on controlling branch point spacing and branch point functionality. Use of living anionic polymerization and chlorosilane linking chemistry has led to the synthesis of series of materials having regularly spaced trifunctional (comb), tetrafunctional (centipede), and hexafunctional (barbwire) branch points. The morphologies of these materials were characterized by transmission electron microscopy and small-angle X-ray scattering, and it was found that the morphologies were controlled by the local architectural asymmetry associated with each branch point. Mechanical properties studies revealed that such multigraft copolymers represent a new class of thermoplastic elastomers (TPEs) with superior elongation at break and low residual strains as compared to conventional TPEs. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Uhrig, David; Mays, Jimmy] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Schlegel, Ralf; Weidisch, Roland] Fraunhofer Inst Mech Mat IWM, D-06120 Halle, Germany. [Weidisch, Roland] Univ Halle Wittenberg, Dept Chem, D-06099 Halle, Germany. [Mays, Jimmy] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Mays, Jimmy] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Mays, J (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. EM mays@ion.chem.utk.edu RI Uhrig, David/A-7458-2016 OI Uhrig, David/0000-0001-8447-6708 FU Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy; Division of Materials Science and Engineering, Office of Basic Energy Sciences, US Department of Energy [DE-AC05-00OR22725]; Oak Ridge National Laboratory; German Science Foundation (DFG) FX We dedicate this paper to our friend and long-time collaborator, Professor Nikos Hadjichristidis, on the occasion of his retirement. Some of Professor Hadjichristidis' many seminal contributions to synthesis and understanding of multigraft copolymer TPEs are documented in this paper. DU and JM acknowledge support by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. IM also acknowledges support from the Division of Materials Science and Engineering, Office of Basic Energy Sciences, US Department of Energy, under contract number DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. RS and RW acknowledge financial support of the German Science Foundation (DFG). NR 38 TC 12 Z9 12 U1 0 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0014-3057 J9 EUR POLYM J JI Eur. Polym. J. PD APR PY 2011 VL 47 IS 4 SI SI BP 560 EP 568 DI 10.1016/j.eurpolymj.2010.10.030 PG 9 WC Polymer Science SC Polymer Science GA 753YY UT WOS:000289818100014 ER PT J AU Balsara, NP Beers, KM AF Balsara, Nitash P. Beers, Keith M. TI Proton conduction in materials comprising conducting domains with widths less than 6 nm SO EUROPEAN POLYMER JOURNAL LA English DT Article DE Polymer; Electrolyte; Membranes; Water retention; Proton conductivity; Microphases ID POLYMER ELECTROLYTE MEMBRANES; FUEL-CELLS; HUMID AIR; NAFION; NANOCHANNELS; ENHANCEMENT; TRANSITIONS; SAXS AB We review the literature on proton conductivity and water uptake of composite polymer electrolyte membranes comprising bicontinuous hydrophilic and hydrophobic domains with well-controlled geometries. Both quantities appear to be enhanced when the width of the hydrophilic channels is smaller than 6 nm. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Balsara, Nitash P.; Beers, Keith M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem Engn, Berkeley, CA 94720 USA. [Balsara, Nitash P.; Beers, Keith M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Balsara, Nitash P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Balsara, NP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem Engn, 201C Gilman Hall, Berkeley, CA 94720 USA. EM nbalsara@berkeley.edu FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division; Energy Efficiency and Renewable Energy Division of the US Department of Energy [DE-AC02-05CH11231] FX NPB gratefully acknowledges Nikos Hadjichristidis for his help as a teacher, friend, and collaborator during the past twenty years. This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division and the Fuel Cell Technologies Program, Energy Efficiency and Renewable Energy Division of the US Department of Energy under Contract DE-AC02-05CH11231. It is a pleasure to recognize Phil Ross (Lawrence Berkeley National Laboratory) for helpful discussions that led to our studies of the effect of capillary condensation on water uptake and proton transport in polymer membranes. NR 23 TC 3 Z9 3 U1 0 U2 22 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0014-3057 J9 EUR POLYM J JI Eur. Polym. J. PD APR PY 2011 VL 47 IS 4 SI SI BP 647 EP 650 DI 10.1016/j.eurpolymj.2010.10.022 PG 4 WC Polymer Science SC Polymer Science GA 753YY UT WOS:000289818100020 ER PT J AU Askari, A Nelson, K Weckner, O Xu, JF Silling, S AF Askari, Abe Nelson, Karl Weckner, Olaf Xu, Jifeng Silling, Stewart TI Hail Impact Characteristics of a Hybrid Material by Advanced Analysis Techniques and Testing SO JOURNAL OF AEROSPACE ENGINEERING LA English DT Article DE Composite materials; Hybrid material; Delaminating; Constitutive models; Hail impact ID COMPOSITE PLATES; MECHANICS; STRENGTH; BEHAVIOR; DAMAGE AB The design of an aerospace structure using an off-the-shelf composite would involve increasing the gauge thickness until all the design requirements are met. This can lead to an inefficient design, because excess margins will exist for all properties except the one that determines the gauge. The design of a material can be made practical by creating a hybrid composite consisting of two or more types of fibers or resins, each embellishing a particular trait or function to the material. This paper investigates both high-and low-energy hail impact against a toughened-epoxy, intermediate-modulus, carbon-fiber composite using both experimental and analytical means. The effect of introducing ply-level hybridization by substituting up to 20% of the plies with glass-reinforced plies is considered. It is found that delamination can be reduced by this hybridization, but the benefits are dependent on the impact energy and the test conditions. A computational model based on the peridynamic theory of solid mechanics is used to understand the benefits and trade-offs in hybridization. DOI: 10.1061/(ASCE)AS.1943-5525.0000034. (C) 2011 American Society of Civil Engineers. C1 [Silling, Stewart] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Askari, Abe; Weckner, Olaf] Boeing Res & Technol, Bellevue, WA 98008 USA. [Nelson, Karl] Boeing Res & Technol, Tukwila, WA 98108 USA. [Xu, Jifeng] Boeing Commercial Airplanes, Composite Methods, Everett, WA 98204 USA. RP Silling, S (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM abe.askari@boeing.com; karl.m.nelson@boeing.com; olaf.weckner@boeing.com; jifeng.xu@boeing.com; sasilli@sandia.gov NR 17 TC 4 Z9 4 U1 1 U2 19 PU ASCE-AMER SOC CIVIL ENGINEERS PI RESTON PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA SN 0893-1321 J9 J AEROSPACE ENG JI J. Aerosp. Eng. PD APR PY 2011 VL 24 IS 2 BP 210 EP 217 DI 10.1061/(ASCE)AS.1943-5525.0000034 PG 8 WC Engineering, Aerospace; Engineering, Civil SC Engineering GA 752KU UT WOS:000289690900010 ER PT J AU de Diego, N Serra, A Bacon, DJ Osetsky, YN AF de Diego, N. Serra, A. Bacon, D. J. Osetsky, Yu N. TI On the structure and mobility of point defect clusters in alpha-zirconium: a comparison for two interatomic potential models SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING LA English DT Article ID AB-INITIO; INTERSTITIAL CLUSTERS; DISPLACEMENT CASCADES; DISLOCATION LOOPS; VACANCY; ZR; DYNAMICS; METALS AB A recent interatomic potential for alpha-zirconium (Zr) is used to investigate the atomic configuration and motion of point defect clusters. The structure of the single self-interstitial atom (SIA) has a strong influence on the properties of small clusters containing up to six interstitials. For a given number of defects in this size range, several configurations exist with similar formation energy but different dynamic properties, i.e. they may be sessile or glissile. The movement of small clusters is three-dimensional and involves combinations of the different configurations. As cluster size increases, the influence of the configuration of the stable single SIA vanishes and the interstitials orientate to achieve near-perfect crystal structure inside the cluster and a dislocation-core arrangement at the periphery. Movement of clusters larger than 12 SIAs is one-dimensional along the direction of the Burgers vector. The stable configurations of vacancy clusters are also studied. The results are compared with those predicted with a model based on an earlier interatomic potential. C1 [de Diego, N.] Univ Complutense, Fac Fis, Dept Fis Mat, E-28040 Madrid, Spain. [Serra, A.] Univ Politecn Cataluna, ETSE Camins, Dept Matemat Aplicada 3, Barcelona, Spain. [Bacon, D. J.] Univ Liverpool, Dept Engn, Liverpool L69 3BX, Merseyside, England. [Osetsky, Yu N.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA. RP de Diego, N (reprint author), Univ Complutense, Fac Fis, Dept Fis Mat, E-28040 Madrid, Spain. EM nievesd@fis.ucm.es OI Serra, Anna/0000-0002-8754-5649; Osetskiy, Yury/0000-0002-8109-0030 FU Spanish Ministry of Science and Innovation [FIS2009-13641-C02-02]; Catalan Government [CIRIT 2009SGR 1003]; US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division; Consortium for Advanced Simulation of Light Water Reactors; US Department of Energy, Energy Innovation Hub for Modeling and Simulation of Nuclear Reactors FX This work was supported by the Spanish Ministry of Science and Innovation (FIS2009-13641-C02-02) and the Catalan Government (CIRIT 2009SGR 1003) and partly supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division and the Consortium for Advanced Simulation of Light Water Reactors (http://www.casl.gov), a US Department of Energy, Energy Innovation Hub (http://www.energy.gov/hubs) for Modeling and Simulation of Nuclear Reactors (Y.O. theory and modelling). The computing was partly made in CESCA (www.cesca.es). NR 18 TC 1 Z9 1 U1 2 U2 19 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0965-0393 J9 MODEL SIMUL MATER SC JI Model. Simul. Mater. Sci. Eng. PD APR PY 2011 VL 19 IS 3 AR 035003 DI 10.1088/0965-0393/19/3/035003 PG 11 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 753MG UT WOS:000289778700003 ER PT J AU Hochhalter, JD Littlewood, DJ Veilleux, MG Bozek, JE Maniatty, AM Rollett, AD Ingraffea, AR AF Hochhalter, J. D. Littlewood, D. J. Veilleux, M. G. Bozek, J. E. Maniatty, A. M. Rollett, A. D. Ingraffea, A. R. TI A geometric approach to modeling microstructurally small fatigue crack formation: III. Development of a semi-empirical model for nucleation SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING LA English DT Article ID POLYCRYSTAL PLASTICITY; ALUMINUM-ALLOY; CYCLE FATIGUE; GROWTH; DISLOCATION AB It has been observed during fatigue cracking of AA 7075-T651 that a small percentage of Al(7)Cu(2)Fe particles crack during manufacturing or very early in their life. Some of the cracked particles eventually nucleate cracks into the surrounding microstructure, and among these the number of cycles required for nucleation varies widely. It is important to comprehend the mechanics underpinning the observed variation so that the subsequent propagation stage can be accurately modeled. To this end, finite element models of replicated grain and particle geometry are used to compute mechanical fields near monitored cracked particles using an elastic-viscoplastic crystal plasticity model that captures the effect of the orientation of the grains near each monitored particle. Nonlocal, slip-based metrics are used to study the localization and cyclic accumulation of slip near the cracked particles providing mechanics-based insight into the actuation of the nucleation event. A high slip localization and cyclic accumulation rate are found to be a necessary, but not sufficient, condition for nucleation from cracked particles. A sufficient local driving stress must also be present, which is strongly dependent on the local microstructure and accumulated slip. Furthermore, the simulation results elucidate a quantitative relationship between the slip accumulated during fatigue loading and a consequential reduction of the critical local driving stress for nucleation, providing a physical basis for the fatigue damage concept. The observed nucleation direction is orthogonal to the computed local maximum tangential stress direction, as expected for this alloy. The main result is a semi-empirical model for the number of cycles required for nucleation, which is dependent on the maximum tangential stress and cyclic slip-accumulation rate near a cracked particle. C1 [Hochhalter, J. D.] NASA, Durabil & Damage Tolerance Branch, Langley Res Ctr, Hampton, VA 23681 USA. [Littlewood, D. J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Veilleux, M. G.; Bozek, J. E.; Ingraffea, A. R.] Cornell Univ, Cornell Fracture Grp, Ithaca, NY 14853 USA. [Maniatty, A. M.] Rensselaer Polytech Inst, Troy, NY 12180 USA. [Rollett, A. D.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. RP Hochhalter, JD (reprint author), NASA, Durabil & Damage Tolerance Branch, Langley Res Ctr, MS 188E, Hampton, VA 23681 USA. EM Jacob.D.Hochhalter@nasa.gov RI Rollett, Anthony/A-4096-2012 OI Rollett, Anthony/0000-0003-4445-2191 FU Defense Advanced Research Projects Agency (DARPA) [HR0011-04-C-0003]; NASA [ARMD-NNX07AB69A]; NASA Advanced Supercomputing Division at Ames Research Center FX Dr Gerd Heber developed the parallel finite element code that was used for the finite element simulations presented here. The measurements of microstructural geometry were made by Robert Christ Jr and Dr Elias Anagnostou at the Northrop Grumman Corporation. This work is partially sponsored by the Defense Advanced Research Projects Agency (DARPA) under contract HR0011-04-C-0003. Dr Leo Christodoulou is the DARPA Program Manager. This work is also partially funded by NASA under contract ARMD-NNX07AB69A. Dr Ed Glaessgen is the National Aeronautics and Space Administration (NASA) Contract Monitor. Resources supporting this work were provided by the NASA High-End Computing Program through the NASA Advanced Supercomputing Division at Ames Research Center. The views, opinions, and/or findings contained in this paper are those of the authors and should not be interpreted as representing the official views or policies, either expressed or implied, of the Defense Advanced Research Projects Agency or the Department of Defense. NR 23 TC 11 Z9 11 U1 1 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0965-0393 J9 MODEL SIMUL MATER SC JI Model. Simul. Mater. Sci. Eng. PD APR PY 2011 VL 19 IS 3 AR 035008 DI 10.1088/0965-0393/19/3/035008 PG 27 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 753MG UT WOS:000289778700008 ER PT J AU Oh, SY Budzik, JM Garufi, G Schneewind, O AF Oh, So-Young Budzik, Jonathan M. Garufi, Gabriella Schneewind, Olaf TI Two capsular polysaccharides enable Bacillus cereus G9241 to cause anthrax-like disease SO MOLECULAR MICROBIOLOGY LA English DT Article ID GROUP-A STREPTOCOCCUS; HYALURONIC-ACID CAPSULE; MOLECULAR CHARACTERIZATION; BIOLOGICAL-ACTIVITIES; INHALATION ANTHRAX; B-ANTHRACIS; TOXIN GENES; CELL-WALL; RECEPTOR; VIRULENCE AB P>Bacillus cereus G9241 causes an anthrax-like respiratory illness in humans; however, the molecular mechanisms of disease pathogenesis are not known. Genome sequencing identified two putative virulence plasmids proposed to provide for anthrax toxin (pBCXO1) and/or capsule expression (pBC218). We report here that B. cereus G9241 causes anthrax-like disease in immune-competent mice, which is dependent on each of the two virulence plasmids. pBCXO1 encodes pagA1, the homologue of anthrax protective antigen, as well as hasACB, providing for hyaluronic acid capsule formation, two traits that each contribute to disease pathogenesis. pBC218 harbours bpsX-H, B. cereus exo-polysaccharide, which produce a second capsule. During infection, B. cereus G9241 elaborates both hasACB and bpsX-H capsules, which together are essential for the establishment of anthrax-like disease and the resistance of bacilli to phagocytosis. A single nucleotide deletion causes premature termination of hasA translation in Bacillus anthracis, which is known to escape phagocytic killing by its pXO2 encoded poly-d-gamma-glutamic acid (PDGA) capsule. Thus, multiple different gene clusters endow pathogenic bacilli with capsular material, provide for escape from innate host immune responses and aid in establishing the pathogenesis of anthrax-like disease. C1 [Oh, So-Young; Budzik, Jonathan M.; Garufi, Gabriella; Schneewind, Olaf] Univ Chicago, Dept Microbiol, Chicago, IL 60637 USA. [Oh, So-Young; Garufi, Gabriella; Schneewind, Olaf] Argonne Natl Lab, Howard Taylor Ricketts Lab, Argonne, IL 60439 USA. RP Schneewind, O (reprint author), Univ Chicago, Dept Microbiol, Chicago, IL 60637 USA. EM oschnee@bsd.uchicago.edu FU National Institute of Allergy and Infectious Diseases (NIAID), Infectious Diseases Branch [AI69227, AI38897]; NIH, University of Chicago [GM07281]; NIH [1-U54-AI-057153] FX We thank Andrea DeDent for her help with the fluorescence microscopy experiments as well as Dominique M. Missiakas and members of our laboratory for discussion and experimental assistance. This work was supported by grants from the National Institute of Allergy and Infectious Diseases (NIAID), Infectious Diseases Branch (AI69227 and AI38897 to O.S.). J.M.B. was a trainee of the NIH Medical Scientist Training Program at The University of Chicago (GM07281). O.S. acknowledges membership within and support from the Region V 'Great Lakes' Regional Center of Excellence in Biodefense and Emerging Infectious Diseases Consortium (NIH Award 1-U54-AI-057153). NR 56 TC 23 Z9 25 U1 1 U2 5 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0950-382X J9 MOL MICROBIOL JI Mol. Microbiol. PD APR PY 2011 VL 80 IS 2 BP 455 EP 470 DI 10.1111/j.1365-2958.2011.07582.x PG 16 WC Biochemistry & Molecular Biology; Microbiology SC Biochemistry & Molecular Biology; Microbiology GA 748CD UT WOS:000289366700015 PM 21371137 ER PT J AU Taubenberger, S Benetti, S Childress, M Pakmor, R Hachinger, S Mazzali, PA Stanishev, V Elias-Rosa, N Agnoletto, I Bufano, F Ergon, M Harutyunyan, A Inserra, C Kankare, E Kromer, M Navasardyan, H Nicolas, J Pastorello, A Prosperi, E Salgado, F Sollerman, J Stritzinger, M Turatto, M Valenti, S Hillebrandt, W AF Taubenberger, S. Benetti, S. Childress, M. Pakmor, R. Hachinger, S. Mazzali, P. A. Stanishev, V. Elias-Rosa, N. Agnoletto, I. Bufano, F. Ergon, M. Harutyunyan, A. Inserra, C. Kankare, E. Kromer, M. Navasardyan, H. Nicolas, J. Pastorello, A. Prosperi, E. Salgado, F. Sollerman, J. Stritzinger, M. Turatto, M. Valenti, S. Hillebrandt, W. TI High luminosity, slow ejecta and persistent carbon lines: SN 2009dc challenges thermonuclear explosion scenarios SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Review DE supernovae: general; supernovae: individual: SN 2006gz; supernovae: individual: SN 2007if; supernovae: individual: SN 2009dc; galaxies: individual: UGC 10063; galaxies: individual: UGC 10064 ID IA SUPERNOVA 2009DC; DIGITAL SKY SURVEY; SOUTHERN SPECTROPHOTOMETRIC STANDARDS; MASS-METALLICITY RELATION; STAR-FORMING GALAXIES; DA WHITE-DWARFS; GAMMA-RAY BURST; LIGHT CURVES; CORE-COLLAPSE; DATA RELEASE AB Extended optical and near-IR observations reveal that SN 2009dc shares a number of similarities with normal Type Ia supernovae (SNe Ia), but is clearly overluminous, with a (pseudo-bolometric) peak luminosity of log (L) = 43.47 (erg s-1). Its light curves decline slowly over half a year after maximum light [delta m(15)(B)(true) = 0.71], and the early-time near-IR light curves show secondary maxima, although the minima between the first and the second peaks are not very pronounced. The bluer bands exhibit an enhanced fading after similar to 200 d, which might be caused by dust formation or an unexpectedly early IR catastrophe. The spectra of SN 2009dc are dominated by intermediate-mass elements and unburned material at early times, and by iron-group elements at late phases. Strong C ii lines are present until similar to 2 weeks past maximum, which is unprecedented in thermonuclear SNe. The ejecta velocities are significantly lower than in normal and even subluminous SNe Ia. No signatures of interaction with a circumstellar medium (CSM) are found in the spectra. Assuming that the light curves are powered by radioactive decay, analytic modelling suggests that SN 2009dc produced similar to 1.8 M-circle dot of 56Ni assuming the smallest possible rise time of 22 d. Together with a derived total ejecta mass of similar to 2.8 M-circle dot, this confirms that SN 2009dc is a member of the class of possible super-Chandrasekhar-mass SNe Ia similar to SNe 2003fg, 2006gz and 2007if. A study of the hosts of SN 2009dc and other superluminous SNe Ia reveals a tendency of these SNe to explode in low-mass galaxies. A low metallicity of the progenitor may therefore be an important prerequisite for producing superluminous SNe Ia. We discuss a number of possible explosion scenarios, ranging from super-Chandrasekhar-mass white-dwarf progenitors over dynamical white-dwarf mergers and Type I SNe to a core-collapse origin of the explosion. None of the models seems capable of explaining all properties of SN 2009dc, so that the true nature of this SN and its peers remains nebulous. C1 [Taubenberger, S.; Pakmor, R.; Hachinger, S.; Mazzali, P. A.; Kromer, M.; Hillebrandt, W.] Max Planck Inst Astrophys, D-85741 Garching, Germany. [Benetti, S.; Mazzali, P. A.; Agnoletto, I.; Bufano, F.; Navasardyan, H.] Osserv Astron Padova, INAF, I-35122 Padua, Italy. [Childress, M.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Childress, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys, Berkeley, CA 94720 USA. [Mazzali, P. A.] Scuola Normale Super Pisa, I-56126 Pisa, Italy. [Stanishev, V.] Inst Super Tecn, CENTRA Ctr Multidisciplinar Astrofis, P-1049001 Lisbon, Portugal. [Elias-Rosa, N.] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA. [Elias-Rosa, N.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Ergon, M.; Sollerman, J.; Stritzinger, M.] Stockholm Univ, AlbaNova, Dept Astron, Oskar Klein Ctr, S-10691 Stockholm, Sweden. [Harutyunyan, A.] Fdn Galileo Galilei INAF, E-38700 Tenerife, Spain. [Inserra, C.; Turatto, M.] Osserv Astrofis Catania, INAF, I-95123 Catania, Italy. [Kankare, E.] Univ Turku, Dept Phys & Astron, Tuorla Observ, FI-21500 Piikkio, Finland. [Kankare, E.] Nord Opt Telescope, E-38700 Tenerife, Spain. [Pastorello, A.; Valenti, S.] Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland. [Prosperi, E.] Osservatorio Astron Castelmartini, I-51036 Larciano, Pistoia, Italy. [Salgado, F.; Stritzinger, M.] Carnegie Observ, Las Campanas Observ, La Serena, Chile. [Salgado, F.] Univ Chile, Dept Astron, Santiago, Chile. RP Taubenberger, S (reprint author), Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85741 Garching, Germany. EM tauben@mpa-garching.mpg.de RI Stanishev, Vallery/M-8930-2013; Elias-Rosa, Nancy/D-3759-2014; OI Stanishev, Vallery/0000-0002-7626-1181; Elias-Rosa, Nancy/0000-0002-1381-9125; Turatto, Massimo/0000-0002-9719-3157; Benetti, Stefano/0000-0002-3256-0016; Sollerman, Jesper/0000-0003-1546-6615; Inserra, Cosimo/0000-0002-3968-4409 FU astronomers at the Telescopio Nazionale Galileo; 2.2-m Telescope at Calar Alto; Nordic Optical Telescope; Large Binocular Telescope; National Aeronautics and Space Administration; Lyon-Meudon Extragalactic Database (LEDA); Alfred P. Sloan Foundation; National Science Foundation; US Department of Energy; Japanese Monbukagakusho; Max Planck Society; Higher Education Funding Council for England; Transregional Collaborative Research Centre [TRR 33]; Office of Science, Office of High Energy Physics, of the US Department of Energy [DE-AC02-05CH11231]; Gordon & Betty Moore Foundation; PRIN-INAF; Fundacao para a Ciencia e a Tecnologia FX This work is based on observations collected at the 2.2-m Telescope of the Centro Astronomico Hispano Aleman (Calar Alto, Spain), the Italian 3.58-m Telescopio Nazionale Galileo, the 2.56-m Nordic Optical Telescope and the 2.0-m Liverpool Telescope (La Palma, Spain), the 3.58-m New Technology Telescope and 0.60-m Rapid Eye Mount (La Silla, Chile), the 1.82-m Copernico Telescope on Cima Ekar (Asiago, Italy) and the 2x8.2m Large Binocular Telescope (Arizona, US). The Telescopio Nazionale Galileo is operated by the Fundacion Galileo Galilei of the Instituto Nazionale di Astrofisica (INAF) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. ESO observations have been performed under programmes 083.D-0728, 083.D-0970 and 184.D-1140. We thank the support astronomers at the Telescopio Nazionale Galileo, the 2.2-m Telescope at Calar Alto, the Nordic Optical Telescope and the Large Binocular Telescope for performing the follow-up observations of SN 2009dc.; This research made use of the NASA/IPAC Extragalactic Database (NED), operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration; the Lyon-Meudon Extragalactic Database (LEDA), supplied by the LEDA team at the Centre de Recherche Astronomique de Lyon, Observatoire de Lyon; the Online Supernova Spectrum Archive (SUSPECT), initiated and maintained at the Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma; and the SMOKA archive, operated by the Astronomy Data Center, National Astronomical Observatory of Japan. Some data used in this paper were obtained from the SDSS. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US 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 website is http://www.sdss.org/. We also benefited greatly from the information provided by the Bright Supernova web pages (maintained by D. Bishop) as part of the Rochester Academy of Sciences (http://www.RochesterAstronomy.org/snimages).; The authors are indebted to the referee, D. Branch, for his constructive comments. Our thanks go to F. K. Ropke, S. A. Sim, I. R. Seitenzahl, A. J. Ruiter, M. Fink, I. Maurer, K. Nomoto and K. Maeda for inspiring discussions, to M. Fink and S. Benitez Herrera for assistance with observations, and to K. Maeda and K. Kawabata for images and spectra of SN 2006gz obtained with the Subaru telescope. ST acknowledges support by the Transregional Collaborative Research Centre TRR 33 'The Dark Universe' of the German Research Foundation (DFG). MC is supported by the Director, Office of Science, Office of High Energy Physics, of the US Department of Energy under Contract No. DE-AC02-05CH11231 and by a grant from the Gordon & Betty Moore Foundation. SB, FB, PAM and MT are partially supported by the PRIN-INAF 2009 with the project 'Supernovae Variety and Nucleosynthesis Yields'. VS acknowledges financial support from Fundacao para a Ciencia e a Tecnologia under program Ciencia 2008. This research has benefited from the European supernova collaboration led by SB. NR 131 TC 89 Z9 90 U1 0 U2 7 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD APR PY 2011 VL 412 IS 4 BP 2735 EP 2762 DI 10.1111/j.1365-2966.2010.18107.x PG 28 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 747BR UT WOS:000289295800050 ER PT J AU Khazov, Y Rodionov, A Kondev, FG AF Khazov, Yu Rodionov, A. Kondev, F. G. TI Nuclear Data Sheets for A=133 SO NUCLEAR DATA SHEETS LA English DT Article ID HALF-LIFE MEASUREMENTS; INTERNAL-CONVERSION COEFFICIENTS; NEUTRON-DEFICIENT LANTHANUM; MAGNETIC DIPOLE-MOMENTS; PULSE-HEIGHT CONVERTER; GAMMA-RAY INTENSITIES; OPTICAL ISOTOPE SHIFT; FIRST EXCITED STATE; RARE-EARTH REGION; HIGH-SPIN STATES AB Evaluated nuclear structure and decay data for all nuclei within the A=133 mass chain are presented. The experimental data are evaluated and best values for level and gamma-ray energies, quantum numbers, lifetimes, gamma-ray intensities, and other nuclear properties are recommended. Inconsistencies and discrepancies that exist in the literature are noted. This work supersedes the earlier evaluation by S. Raab (1995Ra12), published in Nuclear Data Sheets 75, 491 (1995). C1 [Khazov, Yu; Rodionov, A.] Petersburg Nucl Phys Inst RAS, Gatchina 188300, Russia. [Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. RP Khazov, Y (reprint author), Petersburg Nucl Phys Inst RAS, Gatchina 188300, Russia. FU Russian Foundation for Basic Researches [09-07-00387-a]; Office of Nuclear Physics, Office of Science, U.S. Department of Energy [DE-AC02-06CH11357] FX This work was partly supported by Russian Foundation for Basic Researches, project 09-07-00387-a. Work at ANL is supported by the Office of Nuclear Physics, Office of Science, U.S. Department of Energy under contract DE-AC02-06CH11357. NR 323 TC 15 Z9 15 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 0090-3752 J9 NUCL DATA SHEETS JI Nucl. Data Sheets PD APR PY 2011 VL 112 IS 4 BP 855 EP 1113 DI 10.1016/j.nds.2011.03.001 PG 259 WC Physics, Nuclear SC Physics GA 750XT UT WOS:000289582200001 ER PT J AU Browne, E Tuli, JK AF Browne, E. Tuli, J. K. TI Nuclear Data Sheets for A=220 SO NUCLEAR DATA SHEETS LA English DT Article ID EVEN-EVEN NUCLEI; RAY EMISSION PROBABILITIES; GAMMA-ANGULAR-CORRELATIONS; PRODUCTION CROSS-SECTIONS; OCTUPOLE-DEFORMED-NUCLEI; INTERACTING BOSON MODEL; ATOMIC MASS EVALUATION; HEAVY-ION REACTIONS; DECAY PROPERTIES; COLLECTIVE STATES AB The evaluators present in this publication spectroscopic data and level schemes from radioactive decay and nuclear reactions studies for all isobars with mass number A=220. C1 [Browne, E.] Lawrence Berkeley Natl Lab, Upton, NY 11973 USA. [Tuli, J. K.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA. RP Browne, E (reprint author), Lawrence Berkeley Natl Lab, Upton, NY 11973 USA. FU Office of Nuclear Physics, Office of Science, US Department of Energy [DE-AC02-98CH10946] FX Research sponsored by Office of Nuclear Physics, Office of Science, US Department of Energy, under contract DE-AC02-98CH10946. NR 141 TC 6 Z9 6 U1 0 U2 1 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0090-3752 J9 NUCL DATA SHEETS JI Nucl. Data Sheets PD APR PY 2011 VL 112 IS 4 BP 1115 EP + DI 10.1016/j.nds.2011.03.002 PG 46 WC Physics, Nuclear SC Physics GA 750XT UT WOS:000289582200002 ER PT J AU Boker, S Neale, M Maes, H Wilde, M Spiegel, M Brick, T Spies, J Estabrook, R Kenny, S Bates, T Mehta, P Fox, J AF Boker, Steven Neale, Michael Maes, Hermine Wilde, Michael Spiegel, Michael Brick, Timothy Spies, Jeffrey Estabrook, Ryne Kenny, Sarah Bates, Timothy Mehta, Paras Fox, John TI OpenMx: An Open Source Extended Structural Equation Modeling Framework SO PSYCHOMETRIKA LA English DT Article DE structural equation modeling; SEM; software; open source; OpenMx AB OpenMx is free, full-featured, open source, structural equation modeling (SEM) software. OpenMx runs within the R statistical programming environment on Windows, Mac OS-X, and Linux computers. The rationale for developing OpenMx is discussed along with the philosophy behind the user interface. The OpenMx data structures are introduced-these novel structures define the user interface framework and provide new opportunities for model specification. Two short example scripts for the specification and fitting of a confirmatory factor model are next presented. We end with an abbreviated list of modeling applications available in OpenMx 1.0 and a discussion of directions for future development. C1 [Boker, Steven] Univ Virginia, Dept Psychol, Charlottesville, VA 22903 USA. [Neale, Michael; Maes, Hermine] Virginia Commonwealth Univ, Richmond, VA 23284 USA. [Wilde, Michael; Kenny, Sarah] Univ Chicago, Argonne Natl Labs, Chicago, IL 60637 USA. [Bates, Timothy] Univ Edinburgh, Edinburgh EH8 9YL, Midlothian, Scotland. [Mehta, Paras] Univ Houston, Houston, TX 77004 USA. [Fox, John] McMaster Univ, Hamilton, ON L8S 4L8, Canada. RP Boker, S (reprint author), Univ Virginia, Dept Psychol, POB 400400, Charlottesville, VA 22903 USA. EM boker@virginia.edu RI Mehta, Paras/G-3180-2010; Brick, Timothy/C-9966-2015; OI Mehta, Paras/0000-0002-7378-3179; Brick, Timothy/0000-0002-3339-9279; Bates, Timothy/0000-0002-1153-9007 FU NIH [1R21DA024304-01] FX Funding for this work was provided by NIH Grant 1R21DA024304-01. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Institutes of Health. The core development team would also like to thank a large group of beta testers including Dorothy Bishop, Greg Carey, Pascal Deboeck, Emilio Ferrer, Christopher Hertzog, Kevin Grimm, Ken Kelley, Matthew Keller, Michael Kubovy, Jean-Philippe Laurenceau, Todd Little, Diane Lickenbrock, Gitta Lubke, John J. McArdle, Sam McQuillin, Sarah Medland, John Nesselroade, Joseph Rausch, William Revelle, Michael Scharkow, James Steiger, Melissa Sturge-Apple, Stephen Tueller, Jens Vogelgesang, Theodore Walls, Keith Widaman, Timothy York. Correspondence may be addressed to Steven M. Boker, Department of Psychology, The University of Virginia, PO Box 400400, Charlottesville, VA 22903, USA; email sent to boker@virginia.edu; or browsers pointed to http://openmx.psyc.virginia.edu. NR 18 TC 430 Z9 430 U1 3 U2 50 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0033-3123 EI 1860-0980 J9 PSYCHOMETRIKA JI Psychometrika PD APR PY 2011 VL 76 IS 2 BP 306 EP 317 DI 10.1007/s11336-010-9200-6 PG 12 WC Mathematics, Interdisciplinary Applications; Social Sciences, Mathematical Methods; Psychology, Mathematical SC Mathematics; Mathematical Methods In Social Sciences; Psychology GA 749CJ UT WOS:000289439400007 PM 23258944 ER PT J AU Clayton, D Alivisatos, P Finney, K Arvizu, DE Cugini, A Grossenbacher, JJ AF Clayton, Deborah Alivisatos, Paul Finney, Kevin Arvizu, Dan E. Cugini, Anthony Grossenbacher, John J. TI Research Insights SO R&D MAGAZINE LA English DT Editorial Material C1 [Clayton, Deborah] Argonne Natl Lab, Argonne, IL 60439 USA. [Alivisatos, Paul] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Finney, Kevin] Global Secur & Technol Programs, Oak Ridge, TN USA. [Arvizu, Dan E.] NREL, Golden, CO USA. [Cugini, Anthony] NETL, Pittsburgh, PA USA. [Grossenbacher, John J.] Idaho Natl Lab, Idaho Falls, ID USA. RP Clayton, D (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU ADVANTAGE BUSINESS MEDIA PI ROCKAWAY PA 100 ENTERPRISE DR, SUITE 600, BOX 912, ROCKAWAY, NJ 07866-0912 USA SN 0746-9179 J9 R&D MAG JI R D Mag. PD APR PY 2011 VL 53 IS 2 BP 18 EP 19 PG 2 WC Engineering, Industrial; Multidisciplinary Sciences SC Engineering; Science & Technology - Other Topics GA 754QY UT WOS:000289873000005 ER PT J AU Karim, AM Su, Y Engelhard, MH King, DL Wang, Y AF Karim, Ayman M. Su, Yu Engelhard, Mark H. King, David L. Wang, Yong TI Catalytic Roles of Co-0 and Co2+ during Steam Reforming of Ethanol on Co/MgO Catalysts SO ACS CATALYSIS LA English DT Article DE ethanol steam reforming; reaction pathway; Co-0; Co2+; XPS; cobalt oxidation state ID SUPPORTED COBALT CATALYSTS; RAY PHOTOELECTRON-SPECTROSCOPY; FUEL-CELL APPLICATIONS; HYDROGEN-PRODUCTION; SOLID-SOLUTIONS; CU CATALYSTS; XPS ANALYSIS; OXIDE; TEMPERATURE; NI AB The catalytic roles of Co-0 and Co2+ during steam reforming of ethanol Were investigated over Co/MgO catalysts. Catalysts with different Co-0/(Co-0 + Co2+) fraction were prepared through calcination and/or reduction at different temperatures, and the Co-0 fraction was quantified by temperature programmed reduction (TPR) and in situ X-ray photoelectron spectroscopy (XPS). Higher temperature calcination of Co/MgO allowed us to prepare catalysts with more nonreducible Co2+ incorporated in the MgO lattice, while lower calcination tempratures allowed for the preparation of catalysts with higher Co-0/(Co-0 + Co2+) fractions. The catalytic tests on Co-0, nonreducible Co2+, and reducible Co2+ indicated that Co-0 is much more active than either reducible or nonreducible Co2+ for C-C cleavage and water gas shift reaction. In addition, catalysts with a higher Co-0 surface fraction exhibited a lower selectivity to CH4. C1 [Karim, Ayman M.; Su, Yu; King, David L.; Wang, Yong] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99354 USA. [Engelhard, Mark H.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA. [Wang, Yong] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. RP Wang, Y (reprint author), Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99354 USA. EM yong.wang@pnl.gov RI Engelhard, Mark/F-1317-2010; Wang, Yong/C-2344-2013; Karim, Ayman/G-6176-2012; OI Karim, Ayman/0000-0001-7449-542X; Engelhard, Mark/0000-0002-5543-0812 FU U. S. Department of Energy [DE-FG02-05ER15712]; Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory FX The authors would like to thank the financial support from U. S. Department of Energy (Grant DE-FG02-05ER15712). A portion of the research was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory. NR 42 TC 38 Z9 38 U1 5 U2 44 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD APR PY 2011 VL 1 IS 4 BP 279 EP 286 DI 10.1021/cs200014j PG 8 WC Chemistry, Physical SC Chemistry GA 749RA UT WOS:000289485400006 ER PT J AU Inoglu, N Kitchin, JR AF Inoglu, Nilay Kitchin, John R. TI Identification of Sulfur-Tolerant Bimetallic Surfaces Using DFT Parametrized Models and Atomistic Thermodynamics SO ACS CATALYSIS LA English DT Article DE sulfur tolerance; bimetallic surface structures; electronic structure modification; d-band width formalism; solid state table; segregation; atomistic thermodynamics ID DENSITY-FUNCTIONAL THEORY; TRANSITION-METALS; REPULSIVE INTERACTIONS; PROMOTED SULFIDATION; ELECTRONIC-STRUCTURE; HYDROGEN EVOLUTION; ALLOYS; PD; REACTIVITY; PHOTOEMISSION AB The identification of sulfur-tolerant alloys for catalytic applications is difficult due to the combinatorially large number of alloy compositions and surface structures that may be considered. Density functional theory calculations (DFT) are not fast enough to enumerate all the possible structures and their sulfur tolerance. In this work, a DFT parametrized algebraic model that accounts for structure and composition was used to estimate the d-band properties and sulfur adsorption energies of 370 transition metal-based bimetallic alloy surfaces. The estimated properties were validated by DFT calculations for 110 of the surface structures. We then utilized an atomistic thermodynamic framework that includes surface segregation, the presence of adsorbates, and effects of environmental conditions to identify alloy compositions and structures with enhanced sulfur tolerance that are likely to be stable under the environmental conditions. As a case study, we show how this database can be used to identify sulfur tolerant Cu based catalysts and compare the results with what is known about these catalysts experimentally. C1 [Inoglu, Nilay; Kitchin, John R.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Kitchin, John R.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RP Kitchin, JR (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. EM jkitchin@andrew.cmu.edu RI Kitchin, John/A-2363-2010 OI Kitchin, John/0000-0003-2625-9232 FU Office of Basic Energy Science of the U.S. Department of Energy [DOE-BES DEFG0207ER15919] FX J.R.K. gratefully acknowledges support of this work in part by the Office of Basic Energy Science of the U.S. Department of Energy (Grant No. DOE-BES DEFG0207ER15919). NR 44 TC 11 Z9 11 U1 1 U2 18 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 2155-5435 J9 ACS CATAL JI ACS Catal. PD APR PY 2011 VL 1 IS 4 BP 399 EP 407 DI 10.1021/cs200039t PG 9 WC Chemistry, Physical SC Chemistry GA 749RA UT WOS:000289485400020 ER PT J AU Peng, XH Palma, S Fisher, NS Wong, SS AF Peng, Xiaohui Palma, Shelagh Fisher, Nicholas S. Wong, Stanislaus S. TI Effect of morphology of ZnO nanostructures on their toxicity to marine algae SO AQUATIC TOXICOLOGY LA English DT Article DE Zinc oxide; Marine diatoms; Toxicity; Morphology; Structure ID METAL-OXIDE NANOPARTICLES; ZINC-OXIDE; PSEUDOKIRCHNERIELLA-SUBCAPITATA; TOXICOLOGICAL IMPACT; OXIDATIVE STRESS; BULK ZNO; DISSOLUTION; SIZE; PHYTOPLANKTON; PARTICLES AB The influence of ZnO nanoparticle morphology on its toxicity for marine diatoms was evaluated. Four ZnO nanoparticle motifs, possessing distinctive sizes and shapes, were synthesized without adding surfactants. Diameters of ZnO spheres ranged from 6.3 nm to 15.7 nm, and lengths of rod-shaped particles were 242 nm to 862 nm. Their effects on the growth of the marine diatoms, Thalassiosira pseudonana, Chaetoceros gracilis, and Phaeodactylum tricornutum, were determined in laboratory cultures. Between 4.1 and 4.9% of the Zn from all types of nanoparticles dissolved within 72 h and was neither concentration dependent nor morphology dependent. Addition of all nanoparticles at all concentrations tested stopped growth of T. pseudonana and C. gracilis, whereas P. tricornutum was the least sensitive, with its growth rate inversely proportional to nanoparticle concentration. Bioaccumulation of Zn released from nanoparticles in T. pseudonana was sufficient to kill this diatom. The toxicity of rod-shaped particles to P. triocornutum was noted to be greater than that of the spheres. The overall results suggest that toxicity studies assessing the effects of nanoparticles on aquatic organisms need to consider both the dissolution of these particles and the cellular interaction of nanoparticle aggregates. (C) 2011 Elsevier B.V. All rights reserved. C1 [Peng, Xiaohui; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Palma, Shelagh; Fisher, Nicholas S.] SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA. [Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Wong, SS (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. EM sswong@notes.cc.sunysb.edu FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]; NSF [OCE0962201]; SERDP [W912HQ06C0014] FX Research (including ZnO synthesis work and personnel support) carried out at Brookhaven National Laboratory was funded by the U.S. Department of Energy, Office of Basic Energy Sciences, under contract no. DE-AC02-98CH10886. SSW also acknowledges the Alfred P. Sloan Foundation for support of the diffraction and microscopy work (including experimental supplies). NSF Award OCE0962201 and SERDP Award W912HQ06C0014 also helped to support this research. We are grateful to the Central Microscopy Imaging Center at Stony Brook University for access to their TEM facility and to S. van Horn for assistance with electron microscopy. NR 35 TC 68 Z9 71 U1 13 U2 78 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0166-445X EI 1879-1514 J9 AQUAT TOXICOL JI Aquat. Toxicol. PD APR PY 2011 VL 102 IS 3-4 BP 186 EP 196 DI 10.1016/j.aquatox.2011.01.014 PG 11 WC Marine & Freshwater Biology; Toxicology SC Marine & Freshwater Biology; Toxicology GA 748OH UT WOS:000289399400008 PM 21356181 ER PT J AU Dieckmann, J Cooperman, A Brodrick, J AF Dieckmann, John Cooperman, Alissa Brodrick, James TI Solid-State Cooling, Part 2 SO ASHRAE JOURNAL LA English DT Article C1 [Dieckmann, John; Cooperman, Alissa] TIAX, Mech Syst Grp, Cambridge, MA USA. [Brodrick, James] US DOE, Bldg Technol Program, Washington, DC USA. RP Dieckmann, J (reprint author), TIAX, Mech Syst Grp, Cambridge, MA USA. NR 8 TC 2 Z9 2 U1 0 U2 2 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 EI 1943-6637 J9 ASHRAE J JI ASHRAE J. PD APR PY 2011 VL 53 IS 4 BP 66 EP 68 PG 3 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 750WD UT WOS:000289577900015 ER PT J AU Aprile, E Angle, J Arneodo, F Baudis, L Bernstein, A Bolozdynya, A Brusov, P Coelho, LCC Dahl, CE DeViveiros, L Ferella, AD Fernandes, LMP Fiorucci, S Gaitskell, RJ Giboni, KL Gomez, R Hasty, R Kastens, L Kwong, J Lopes, JAM Madden, N Manalaysay, A Manzur, A McKinsey, DN Monzani, ME Ni, K Oberlack, U Orboeck, J Orlandi, D Plante, G Santorelli, R dos Santos, JMF Shagin, P Shutt, T Sorensen, P Schulte, S Tatananni, E Winant, C Yamashita, M AF Aprile, E. Angle, J. Arneodo, F. Baudis, L. Bernstein, A. Bolozdynya, A. Brusov, P. Coelho, L. C. C. Dahl, C. E. DeViveiros, L. Ferella, A. D. Fernandes, L. M. P. Fiorucci, S. Gaitskell, R. J. Giboni, K. L. Gomez, R. Hasty, R. Kastens, L. Kwong, J. Lopes, J. A. M. Madden, N. Manalaysay, A. Manzur, A. McKinsey, D. N. Monzani, M. E. Ni, K. Oberlack, U. Orboeck, J. Orlandi, D. Plante, G. Santorelli, R. dos Santos, J. M. F. Shagin, P. Shutt, T. Sorensen, P. Schulte, S. Tatananni, E. Winant, C. Yamashita, M. TI Design and performance of the XENON10 dark matter experiment SO ASTROPARTICLE PHYSICS LA English DT Article DE Dark matter; Direct detection; Liquid xenon; Time projection chamber ID LIQUID XENON; NEUTRON-FLUX; GRAN-SASSO; SCINTILLATION; DETECTORS; ARGON; PHASE; LIGHT AB XENON10 is the first two-phase xenon time projection chamber (TPC) developed within the XENON dark matter search program. The TPC, with an active liquid xenon (LXe) mass of about 14 kg, was installed at the Gran Sasso Underground Laboratory (LNGS) in Italy, and operated for more than one year, with excellent stability and performance. Results from a dark matter search with XENON10 have been published elsewhere. In this paper, we summarize the design and performance of the detector and its subsystems, based on calibration data using sources of gamma-rays and neutrons as well as background and Monte Carlo simulation data. The results on the detector's energy threshold, position resolution, and overall efficiency show a performance that exceeds design specifications, in view of the very low energy threshold achieved (< 10 keVr) and low background rate achieved. (C) 2011 Elsevier B.V. All rights reserved. C1 [Aprile, E.; Giboni, K. L.; Monzani, M. E.; Ni, K.; Plante, G.; Santorelli, R.; Yamashita, M.] Columbia Univ, Dept Phys, New York, NY 10027 USA. [Angle, J.; Baudis, L.; Manalaysay, A.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA. [Angle, J.; Baudis, L.; Manalaysay, A.; Orboeck, J.; Schulte, S.] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland. [Arneodo, F.; Ferella, A. D.; Orlandi, D.; Tatananni, E.] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, Italy. [Bernstein, A.; Madden, N.; Winant, C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Bolozdynya, A.; Brusov, P.; Dahl, C. E.; Kwong, J.; Shutt, T.] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA. [Coelho, L. C. C.; Fernandes, L. M. P.; Lopes, J. A. M.; dos Santos, J. M. F.] Univ Coimbra, Dept Phys, P-3004516 Coimbra, Portugal. [Dahl, C. E.; Kwong, J.] Princeton Univ, Dept Phys, Princeton, NJ 08540 USA. [DeViveiros, L.; Fiorucci, S.; Gaitskell, R. J.; Sorensen, P.] Brown Univ, Dept Phys, Providence, RI 02912 USA. [Gomez, R.; Oberlack, U.; Shagin, P.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA. [Hasty, R.; Kastens, L.; Manzur, A.; McKinsey, D. N.] Yale Univ, Dept Phys, New Haven, CT 06511 USA. RP Ni, K (reprint author), Shanghai Jiao Tong Univ, Dept Phys, Shanghai, Peoples R China. EM nikx@sjtu.edu.cn RI Fiorucci, Stefano/I-1251-2012; Arneodo, Francesco/B-8076-2013; de Viveiros, Luiz/M-9205-2013; matias-lopes, jose/H-6074-2012; dos Santos, Joaquim/B-3058-2015; Coelho, Luis/D-9295-2014; Arneodo, Francesco/E-5061-2015; Fernandes, Luis/E-2372-2011; Santorelli, Roberto/L-6017-2015; Coelho, Luis/F-4493-2012; OI Arneodo, Francesco/0000-0002-1061-0510; de Viveiros, Luiz/0000-0002-7038-2361; matias-lopes, jose/0000-0002-6366-2963; Coelho, Luis/0000-0001-6205-9479; Arneodo, Francesco/0000-0002-1061-0510; Fernandes, Luis/0000-0002-7061-8768; Santorelli, Roberto/0000-0002-0012-2644; Coelho, Luis/0000-0001-6205-9479; Baudis, Laura/0000-0003-4710-1768; dos Santos, Joaquim Marques Ferreira/0000-0002-8841-6523; Ferella, Alfredo Davide/0000-0002-6006-9160 FU National Science Foundation [PHY-03-02646, PHY-04-00596]; Department of Energy [DE-FG02-91ER40688]; CAREER [PHY-0542066]; Volkswagen Foundation (Germany); FCT, (Portugal) [POCI/FIS/60534/2004] FX This work was supported by the National Science Foundation under Grants Nos. PHY-03-02646 and PHY-04-00596, and by the Department of Energy under Contract No. DE-FG02-91ER40688, the CAREER Grant No. PHY-0542066, the Volkswagen Foundation (Germany) and the FCT Grant No. POCI/FIS/60534/2004 (Portugal). We thank the Director of the Gran Sasso National Laboratory, Prof. E. Coccia, and his staff for support throughout this effort. Special thanks go to the laboratory's engineering team, led by P. Aprili, and to F. Redaelli of COMASUD for their contribution to the XENON10 installation. We are also thankful to Prof. Tom Haruyama for his contribution to the XENON10 cryogenics system and Dr. M. Laubenstein for the radioactivity screening of several XENON 10 materials, especially the PMTs. NR 45 TC 44 Z9 46 U1 1 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-6505 J9 ASTROPART PHYS JI Astropart Phys. PD APR PY 2011 VL 34 IS 9 BP 679 EP 698 DI 10.1016/j.astropartphys.2011.01.006 PG 20 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 747OK UT WOS:000289329100005 ER PT J AU Cheng, G Varanasi, P Li, CL Liu, HB Menichenko, YB Simmons, BA Kent, MS Singh, S AF Cheng, Gang Varanasi, Patanjali Li, Chenlin Liu, Hanbin Menichenko, Yuri B. Simmons, Blake A. Kent, Michael S. Singh, Seema TI Transition of Cellulose Crystalline Structure and Surface Morphology of Biomass as a Function of Ionic Liquid Pretreatment and Its Relation to Enzymatic Hydrolysis SO BIOMACROMOLECULES LA English DT Article ID NEUTRON FIBER DIFFRACTION; HYDROGEN-BONDING SYSTEM; X-RAY-DIFFRACTION; LIGNOCELLULOSIC BIOMASS; THERMAL-EXPANSION; NATIVE CELLULOSE; CELL-WALL; I-BETA; SWITCHGRASS; SACCHARIFICATION AB Cellulose is inherently resistant to breakdown, and:the native crystalline structure (cellulose I) of cellulose is considered to be one of the major factors limiting its potential in terms of cost-competitive lignocellulosic biofuel production. Here we report the impact of ionic liquid pretreatment on the cellulose crystalline structure in different feedstocks including microcrystalline cellulose (Avicel), switchgrass (Panicum virgatum), pine (Pinus radiata); and eucalyptus (Eucalyptus globulus), and its influence on cellulose. hydrolysis kinetics of the resultant biomass. These feedstocks were pretreated using 1-ethyl-3-methyl imidazolium acetate ([C2mim][OAc) at 120 and 160 degrees C for 1,3,6, and 12 h. The influence of the pretreatment. conditions on the cellulose crystalline structure was analyzed by X-ray diffraction (XRD). On a. larger length scale, the impact of ionic liquid pretreatment on the surface roughness of the biomass was determined by small-angle neutron scattering (SANS). Pretreatment resulted in a loss of native cellulose crystalline structure. However, the transformation processes were distinctly different for Avicel and for the biomass samples. For Avicel, a transformation to cellulose II occurred Oral! processing conditions For the biomass samples, the data suggest that pretreatment for most conditions resulted in an expanded cellulose I lattice. For switchgrass, first evidence of cellulase II only Occurred after 12 h of pretreatment at 120 degrees C. For eucalyptus, first evidence of cellulose II required, more intense pretreatment (3 hat 160 degrees C). For pine, no-clear evidence of cellulose II content was detected for the most intense pretreatment conditions of this:study (12 h at 160 degrees C). Interestingly, the rate of enzymatic hydrolysis of Avicel was slightly lower for pretreatment at 160 degrees C compared with pretreatment at 120 degrees C. For the biomass samples, the hydrolysis rate was much greater for pretreatment at 160 degrees C compared with pretreatment at 120 degrees C. The result for Avicel can be explained by more complete conversion to cellulose II upon precipitation after pretreatment at 160 degrees C. By comparison, the result for the biomass samples suggests that another factor, likely lignin carbohydrate complexes, also impacts the rate of cellulose hydrolysis in addition to cellulose Crystallinity. C1 [Cheng, Gang; Varanasi, Patanjali; Li, Chenlin; Liu, Hanbin; Simmons, Blake A.; Kent, Michael S.; Singh, Seema] Joint BioEnergy Inst, Emeryville, CA USA. [Cheng, Gang; Varanasi, Patanjali; Li, Chenlin; Liu, Hanbin; Simmons, Blake A.; Kent, Michael S.; Singh, Seema] Sandia Natl Labs, Livermore, CA USA. [Cheng, Gang; Varanasi, Patanjali; Li, Chenlin; Liu, Hanbin; Simmons, Blake A.; Kent, Michael S.; Singh, Seema] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Menichenko, Yuri B.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. RP Singh, S (reprint author), Joint BioEnergy Inst, Emeryville, CA USA. EM seesing@sandia.gov OI Li, Chenlin/0000-0002-0793-0505; Simmons, Blake/0000-0002-1332-1810 FU U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy FX We thank Drs. Cheng Wang, Alexander Hexemer, and Mr. Alejandro Cruz Gonzalez for helping with tests at the Advanced Light Source of LBL. We thank Dr. Paul Adams (LBL) for reviewing the manuscript, Professor Sunkyu Park (North Carolina State University) for helpful discussions, and Mr. Miles Clift (Sandia National Laboratories) for assisting with XRD measurements. This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U.S. Department of Energy. 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, U.S. Department of Energy. G.C. acknowledges the EPSCoR Neutron Travel Fellowship through University of Tennessee. NR 47 TC 170 Z9 175 U1 17 U2 118 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1525-7797 J9 BIOMACROMOLECULES JI Biomacromolecules PD APR PY 2011 VL 12 IS 4 BP 933 EP 941 DI 10.1021/bm101240z PG 9 WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science SC Biochemistry & Molecular Biology; Chemistry; Polymer Science GA 746DT UT WOS:000289223500010 PM 21361369 ER PT J AU Yoo, SY Kobayashi, M Lee, PP Lee, SW AF Yoo, So Young Kobayashi, Masae Lee, Phin Peng Lee, Seung-Wuk TI Early Osteogenic Differentiation of Mouse Preosteoblasts Induced by Collagen-Derived DGEA-Peptide on Nanofibrous Phage Tissue Matrices SO BIOMACROMOLECULES LA English DT Article ID CELL-ADHESION; EXTRACELLULAR-MATRIX; FILAMENTOUS PHAGE; OSTEOBLASTIC DIFFERENTIATION; SOFT LITHOGRAPHY; MAMMALIAN-CELLS; I COLLAGEN; NANOSCALE; BINDING; VIRUS AB Specific biochemical and physical cues in tissue extracellular matrices play a critical role in regulating cellular growth processes and their fate. We report initial responses of bone stem cells induced by collagen-derived DGEA-peptides on nanofibrous M13 phage tissue matrices. We constructed genetically engineered M13 phage with DGEA-peptide displayed in high density on the major coat proteins and biomimetic nanofibrous tissue-like matrices in two and three dimensions. We investigated the effects of biochemical. Cues, specifically DGEA-peptides on preosteoblast (MC3T3) morphologies. The preosteoblasts grown on the top of the DGEA-incorporated Phage matrices exhibited significant outgrown morphology with early bone cell marker protein expression. Through soluble. peptide competition assays and control experiments, we verified that the observed cellular morphologies and osteogenic protein marker expression were specifically caused by the DGEA-peptides. We confirmed that the outgrown morphologies are linked with the early phase of osteogenic protein expression. through mRNA quantification and bone cell protein marker expression. Additionally, we demonstrated-that the phage-based tissue matrix systems could work as a good cell culture platform to investigate the specific effect of biochemical cues, which can be tuned, precisely at a single amino acid level with little change in other physical and chemical properties of the environment. Our study advances the understanding of osteogenic. differentiation and our phage-based tissue matrices have the potential for future bone regeneration therapy and systemic investigation of specific cellular responses to biochemical ligand stimulation. C1 [Yoo, So Young; Kobayashi, Masae; Lee, Phin Peng; Lee, Seung-Wuk] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley Nanosci & Nanoengn Inst, Berkeley, CA 94720 USA. RP Lee, SW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley Nanosci & Nanoengn Inst, Berkeley, CA 94720 USA. EM leesw@berkeley.edu FU Hellman Family Faculty Fund; Berkeley Nanoscience and Nanoengineering Institute at the University of California, Berkeley; Lawrence Berkeley National Laboratory FX This work was supported by the Hellman Family Faculty Fund (S.-W.L.), start-up funds from the Berkeley Nanoscience and Nanoengineering Institute at the University of California, Berkeley (S.-W.L.), and the Laboratory Directed Research and Development fund from the Lawrence Berkeley National Laboratory. NR 63 TC 33 Z9 37 U1 1 U2 22 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1525-7797 EI 1526-4602 J9 BIOMACROMOLECULES JI Biomacromolecules PD APR PY 2011 VL 12 IS 4 BP 987 EP 996 DI 10.1021/bm1013475 PG 10 WC Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science SC Biochemistry & Molecular Biology; Chemistry; Polymer Science GA 746DT UT WOS:000289223500016 PM 21344869 ER PT J AU Moore, HM Kelly, A Jewell, SD McShane, LM Clark, DP Greenspan, R Hainaut, P Hayes, DF Kim, P Mansfield, E Potapova, O Riegman, P Rubinstein, Y Seijo, E Somiari, S Watson, P Weier, HU Zhu, C Vaught, J AF Moore, Helen M. Kelly, Andrea Jewell, Scott D. McShane, Lisa M. Clark, Douglas P. Greenspan, Renata Hainaut, Pierre Hayes, Daniel F. Kim, Paula Mansfield, Elizabeth Potapova, Olga Riegman, Peter Rubinstein, Yaffa Seijo, Edward Somiari, Stella Watson, Peter Weier, Heinz-Ulrich Zhu, Claire Vaught, Jim TI Biospecimen Reporting for Improved Study Quality SO BIOPRESERVATION AND BIOBANKING LA English DT Article ID PARAFFIN-EMBEDDED TISSUES; FLIGHT-MASS-SPECTROMETRY; APPROACHING CLINICAL PROTEOMICS; GENE-EXPRESSION PROFILES; NEEDLE-ASPIRATION BIOPSY; HUMAN POSTMORTEM TISSUES; LONG-TERM STORAGE; MESSENGER-RNA; HUMAN BRAIN; MICROARRAY ANALYSIS AB Human biospecimens are subject to a number of different collection, processing, and storage factors that can significantly alter their molecular composition and consistency. These biospecimen preanalytical factors, in turn, influence experimental outcomes and the ability to reproduce scientific results. Currently, the extent and type of information specific to the biospecimen preanalytical conditions reported in scientific publications and regulatory submissions varies widely. To improve the quality of research utilizing human tissues, it is critical that information regarding the handling of biospecimens be reported in a thorough, accurate, and standardized manner. The Biospecimen Reporting for Improved Study Quality recommendations outlined herein are intended to apply to any study in which human biospecimens are used. The purpose of reporting these details is to supply others, from researchers to regulators, with more consistent and standardized information to better evaluate, interpret, compare, and reproduce the experimental results. The Biospecimen Reporting for Improved Study Quality guidelines are proposed as an important and timely resource tool to strengthen communication and publications around biospecimen-related research and help reassure patient contributors and the advocacy community that the contributions are valued and respected. C1 [Moore, Helen M.; Vaught, Jim] NCI, Off Biorepositories & Biospecimen Res, NIH, Dept Hlth & Human Serv, Rockville, MD 20852 USA. [Kelly, Andrea] Rose Li & Associates Inc, Brookeville, MD USA. [Jewell, Scott D.] Van Andel Res Inst, Program Biospecimen Sci, Grand Rapids, MI USA. [McShane, Lisa M.] NCI, Biometr Res Branch, Rockville, MD USA. [Clark, Douglas P.] Johns Hopkins Univ Hosp, Div Cytopathol, Baltimore, MD 21287 USA. [Greenspan, Renata] Walter Reed Army Med Ctr, USMCI, Washington, DC 20307 USA. [Hainaut, Pierre] WHO, Int Agcy Res Canc, Lyon, France. [Hayes, Daniel F.] Univ Michigan, Ctr Comprehens Canc, Breast Canc Res, Breast Oncol Program, Ann Arbor, MI 48109 USA. [Kim, Paula] TRAC Translating Res Communities, Green Cove Springs, FL USA. [Mansfield, Elizabeth] Ctr Devices & Radiol Hlth, CDRH Off Vitro Diagnost Device Evaluat & Safety, Silver Spring, MD USA. [Potapova, Olga] Cureline Inc, San Francisco, CA USA. [Riegman, Peter] Erasmus MC Tissue Bank, Rotterdam, Netherlands. [Rubinstein, Yaffa] NIH, Off Rare Dis Res, Rockville, MD USA. [Seijo, Edward] H Lee Moffitt Canc Ctr & Res Inst, Tampa, FL USA. [Somiari, Stella] Windber Res Inst, Windber, PA USA. [Watson, Peter] Univ British Columbia, Dept Pathol & Lab Med, Victoria, BC, Canada. [Weier, Heinz-Ulrich] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Zhu, Claire] NCI, Canc Prevent Div, Rockville, MD USA. RP Vaught, J (reprint author), NCI, Off Biorepositories & Biospecimen Res, NIH, Dept Hlth & Human Serv, 11400 Rockville Pike,Suite 700, Rockville, MD 20852 USA. EM vaughtj@mail.nih.gov RI Hainaut, Pierre /B-6018-2012 OI Hainaut, Pierre /0000-0002-1303-1610 FU NCI, National Institutes of Health [HHSN261200800001E]; NIH [CA136685]; Lawrence Berkeley National Laboratory [DE-AC002-05CH11231] FX This project has been funded in whole or in part with Federal Funds from the NCI, National Institutes of Health, under contract no. HHSN261200800001E and by NIH grant CA136685 (HUW) carried out at the Lawrence Berkeley National Laboratory under contract DE-AC002-05CH11231. The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, and mention of trade names, commercial products, or organizations does not imply endorsement by the U.S. Government. NR 81 TC 49 Z9 49 U1 2 U2 6 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1947-5535 J9 BIOPRESERV BIOBANK JI Biopreserv. Biobank. PD APR PY 2011 VL 9 IS 1 BP 57 EP 70 DI 10.1089/bio.2010.0036 PG 14 WC Cell Biology; Chemistry, Applied; Medical Laboratory Technology SC Cell Biology; Chemistry; Medical Laboratory Technology GA 751KS UT WOS:000289617000010 ER PT J AU Ashworth, SP Reagor, DW AF Ashworth, S. P. Reagor, D. W. TI A novel cooling scheme for superconducting power cables SO CRYOGENICS LA English DT Article DE Superconducting; Cable; Cooling ID LIQUID-NITROGEN; ORIFICES; FLOW AB Long distance transmission of electrical power with superconducting cables is likely necessary for energy conservation and effective utilization of renewable energy sources. The performance and cost of such superconducting lines is as significantly influenced by cryogenic issues as by superconductor performance. One significant cryogenic issue is that in the usual method of cooling using sub-cooled cryogen flow there is a limited cable length before the cryogen needs to be re-cooled. This adds complexity and cost to the cable system. Here we address this problem by utilizing the latent heat of the cryogen without the complication of multi-phase flow. The cryogen is distributed to the superconducting components by spraying it through small holes in a pressurized line. The pressurized liquid exiting the holes turns into mixed liquid and vapor with a temperature near the boiling point of the cryogen at the pressure of the space surrounding the superconducting components. The pressure in the space surrounding the superconducting components is then kept near atmospheric by maintaining short distances to a vent. The sprayed liquid accumulates but rapidly vaporizes in response to the heat load, providing even cooling power at a fixed temperature for the entire length of the line. Our work indicates that it may be possible to implement a cooling system with much simplified cryogenic stations at the cable ends and allowing cable lengths of up to 100 km with no intermediate cooling stations. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Ashworth, S. P.; Reagor, D. W.] Los Alamos Natl Lab, Superconductiv Technol Ctr, Los Alamos, NM 87545 USA. RP Ashworth, SP (reprint author), Los Alamos Natl Lab, Superconductiv Technol Ctr, POB 1663, Los Alamos, NM 87545 USA. EM ashworth@lanl.gov FU US Department of Energy, Office of Electricity Delivery and Energy Reliability FX The authors gratefully acknowledge technical support from Russ Mortensen of Los Alamos National Laboratory. This Project was supported by the US Department of Energy, Office of Electricity Delivery and Energy Reliability. NR 7 TC 5 Z9 5 U1 1 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0011-2275 EI 1879-2235 J9 CRYOGENICS JI Cryogenics PD APR PY 2011 VL 51 IS 4 BP 161 EP 167 DI 10.1016/j.cryogenics.2011.01.001 PG 7 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA 749HJ UT WOS:000289454700002 ER PT J AU McWhorter, S Read, C Ordaz, G Stetson, N AF McWhorter, Scott Read, Carole Ordaz, Grace Stetson, Ned TI Materials-based hydrogen storage: Attributes for near-term, early market PEM fuel cells SO CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE LA English DT Review DE Hydrogen storage; Hydrogen storage review; Metal hydrides; Chemical hydrides; Chemical hydrogen storage; Nanostructured materials; High surface area adsorbents; Sorbents; PEM fuel cells; Near-term markets ID METAL-ORGANIC FRAMEWORKS; AMMONIA-BORANE; THERMAL-DECOMPOSITION; ALUMINUM HYDRIDES; COMPLEX HYDRIDES; GAS-ADSORPTION; H SYSTEM; GENERATION; SPILLOVER; LIBH4 AB Although hydrogen is widely recognized as a promising energy carrier for the transportation sector, widespread adoption of hydrogen and fuel cell technologies depends critically on the ability to store hydrogen at adequate densities, as well as release hydrogen at sufficient rates (among other requirements) to meet PEM fuel cell power plant requirements. At present, no known material or storage means exists that satisfies all requirements to enable high-volume automotive application, however materials do exist that would satisfy requirements for near-term non-vehicular PEM fuel cell applications. The US DOE recognizes that non-vehicular early market applications are the most likely paths for the successful demonstration and application of material-based hydrogen storage technology. In this review, we provide a practical overview of the most probable near-term PEM fuel cell markets as identified through market reviews with an emphasis on the attributes of the relevant materials-based hydrogen storage for those near-term markets. Published by Elsevier Ltd. C1 [McWhorter, Scott; Read, Carole; Ordaz, Grace; Stetson, Ned] US DOE, Fuel Cell Technol Program, Washington, DC 20585 USA. [McWhorter, Scott] Savannah River Natl Lab, Aiken, SC 29808 USA. RP Stetson, N (reprint author), US DOE, Fuel Cell Technol Program, 1000 Independence Ave SW, Washington, DC 20585 USA. EM ned.stetson@ee.doe.gov NR 95 TC 52 Z9 52 U1 5 U2 72 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-0286 EI 1879-0348 J9 CURR OPIN SOLID ST M JI Curr. Opin. Solid State Mat. Sci. PD APR PY 2011 VL 15 IS 2 BP 29 EP 38 DI 10.1016/j.cossms.2011.02.001 PG 10 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 750XJ UT WOS:000289581200001 ER PT J AU Ronnebro, E AF Roennebro, Ewa TI Development of group II borohydrides as hydrogen storage materials SO CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE LA English DT Review DE Group II borohydrides; Mg(BH4)(2); Ca(BH4)(2); Hydrogen storage ID WELL-CRYSTALLIZED MG(BH4)(2); CALCIUM BOROHYDRIDE; MAGNESIUM BOROHYDRIDE; THERMAL-DECOMPOSITION; METAL BOROHYDRIDES; CA(BH4)(2); REVERSIBILITY; DIFFRACTION; LIBH4; PHASE AB The group II alkaline-earth metal borohydrides, Mg(BH4)(2) and Ca(BH4)(2) are among the most promising materials for light-weight, high-capacity hydrogen storage. Five years ago, little were known about the potential of these materials for reversible hydrogen storage, except for their high hydrogen content of 14.9 wt% and 11.6 wt% respectively. Theory predicted nearly ideal thermodynamics, but finding competing decomposition pathways with formation of very stable phases which limits cycle life. Solid-state synthesis routes have been developed and crystal structures and decomposition products have been identified as well as methods to improve hydrogen sorption performance including catalysis and nanoscience. Reversibility was demonstrated for both materials at high pressures and temperatures. We will here review recent progress and discuss challenges and future pathways towards applications. (C) 2010 Elsevier Ltd. All rights reserved. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Ronnebro, E (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM ewa.ronnebro@pnl.gov FU DOE, Office of Energy Efficiency and Renewable Energy (EERE); Hydrogen Storage Grand Challenge, Center of Excellences, within DOE [FY2005-FY2010] FX The author received funding from the DOE, Office of Energy Efficiency and Renewable Energy (EERE) during the past five years, FY2005-FY2010, as part of the Hydrogen Storage Grand Challenge, Center of Excellences, within DOE's National Hydrogen Storage Program. Pacific Northwest National Laboratory is operated for US Department of Energy (DOE) by Battelle. NR 57 TC 43 Z9 45 U1 2 U2 57 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-0286 J9 CURR OPIN SOLID ST M JI Curr. Opin. Solid State Mat. Sci. PD APR PY 2011 VL 15 IS 2 BP 44 EP 51 DI 10.1016/j.cossms.2010.10.003 PG 8 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 750XJ UT WOS:000289581200003 ER PT J AU Bowden, M Autrey, T AF Bowden, Mark Autrey, Tom TI Characterization and mechanistic studies of the dehydrogenation of NHxBHx materials SO CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE LA English DT Review DE Energy storage; Chemical hydrogen storage ID CHEMICAL HYDROGEN STORAGE; N-H COMPOUNDS; AMMONIA-BORANE; THERMAL-DECOMPOSITION; AB-INITIO; THERMODYNAMIC PROPERTIES; ELECTRONIC-STRUCTURE; MOLECULAR-DYNAMICS; NEUTRON-SCATTERING; ORTHORHOMBIC PHASE AB In this review we cover the recent developments providing insight into the chemical and physical properties for a series of hydrogen-rich nitrogen-boron-hydrogen materials that are of interest as energy storage media for fuel cell power applications. These materials, ammonium borohydride (ABH(2), [NH4][BH4]; 240 g H-2/kg; 165 g/l), ammonia borane (AB, [NH3BH3]; 196 g H-2/kg; 147 g/l) and diammoniate of diborane (DADB, (NH3BH2NH3][BH4]; 196 g H-2/kg; ca. 151 g/l), release hydrogen by a series of moderately exothermic reaction pathways. The advantage of these materials is that hydrogen release is kinetically controlled and occurs at relatively low temperatures and moderate pressures. The challenges are devising economical pathways to regenerate the fully charged hydrogen storage materials off board and understanding and controlling the formation of volatile impurities that decrease the purity of the hydrogen available for polymer electrolyte membrane fuel cell applications. The focus of this review is on the solid phase ABH(2), AB and DADB materials to complement the coverage of AB in other recent review articles (Stephens et al. [1]; Marder [2]). Additional discussion is given on the decomposition products of these materials, polyaminoborane (PAB, [NH2BH2](n)) and polyiminoborane (PIB, [NHBH](n)). The article is organized into three sections: (i) Synthesis and structural characterization; (ii) Kinetics and thermodynamics of hydrogen release and (iii) Outstanding challenges for breakthroughs. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Bowden, Mark; Autrey, Tom] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Autrey, T (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM tom.autrey@pnl.gov FU US Department of Energy Basic Energy Sciences' Chemical Sciences, Geosciences & Biosciences Division; EMSL; Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory FX This work was supported by the US Department of Energy Basic Energy Sciences' Chemical Sciences, Geosciences & Biosciences Division. The authors also wish to acknowledge the support of 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. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy. NR 72 TC 25 Z9 26 U1 3 U2 54 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-0286 EI 1879-0348 J9 CURR OPIN SOLID ST M JI Curr. Opin. Solid State Mat. Sci. PD APR PY 2011 VL 15 IS 2 BP 73 EP 79 DI 10.1016/j.cossms.2011.01.005 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 750XJ UT WOS:000289581200006 ER PT J AU Scown, CD Horvath, A McKone, TE AF Scown, Corinne D. Horvath, Arpad McKone, Thomas E. TI Water Footprint of U.S. Transportation Fuels SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID ENERGY; INTENSITY; IMPACTS; LCA AB In the modern global economy, water and energy are fundamentally connected. Water already plays a major role in electricity generation and, with biofuels and electricity poised to gain a significant share of the transportation fuel market, water will become significantly more important for transportation energy as well. This research provides insight into the potential changes in water use resulting from increased biofuel or electricity production for transportation energy, as well as the greenhouse gas and freshwater implications. It is shown that when characterizing the water impact of transportation energy, incorporating indirect water use and defensible allocation techniques have a major impact on the final results, with anywhere between an 82% increase and a 250% decrease in the water footprint if evaporative losses from hydroelectric power are excluded. The greenhouse gas impact results indicate that placing cellulosic biorefineries in areas where water must be supplied using alternative means, such as desalination, wastewater recycling, or importation can increase the fuel's total greenhouse gas footprint by up to 47%. The results also show that the production of ethanol and petroleum fuels burden already overpumped aquifers, whereas electricity production is far less dependent on groundwater. C1 [Scown, Corinne D.; Horvath, Arpad] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. [McKone, Thomas E.] Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA 94720 USA. [McKone, Thomas E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Scown, CD (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. EM corinne.scown@gmail.com RI Scown, Corinne/D-1253-2013 FU National Science Foundation; Energy Biosciences Institute at UC Berkeley; California Energy Commission [MR-06-08]; University of California (UC); California Energy Commission (Energy Commission) FX C.S. acknowledges the financial support of the National Science Foundation Graduate Research Fellowship. T.M. acknowledges the financial support of the Energy Biosciences Institute at UC Berkeley. The contributions of A.H. and C.S. to this material are based upon work supported by the California Energy Commission under contract MR-06-08. Parts of this report were prepared as a result of work by A.H. and C.S. sponsored by the California Energy Commission (Energy Commission) and the University of California (UC). It does not necessarily represent the views of the Energy Commission, UC, their employees, or the State of California. The Energy Commission, the State of California, its employees, and UC make no warranty, express or implied, and assume no legal responsibility for the information in this report; nor does any party represent that the use of this information will not infringe upon privately owned rights. This report has not been approved or disapproved by the Energy Commission or UC, nor has the Energy Commission or UC passed upon the accuracy of the information in this report. NR 46 TC 45 Z9 45 U1 6 U2 42 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 APR 1 PY 2011 VL 45 IS 7 BP 2541 EP 2553 DI 10.1021/es102633h PG 13 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500010 PM 21405015 ER PT J AU Powell, BA Dai, ZR Zavarin, M Zhao, PH Kersting, AB AF Powell, Brian A. Dai, Zurong Zavarin, Mavrik Zhao, Pihong Kersting, Annie B. TI Stabilization of Plutonium Nano-Colloids by Epitaxial Distortion on Mineral Surfaces SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID NEVADA TEST-SITE; SUBSURFACE ENVIRONMENT; OXIDE; SOLUBILITY; TRANSPORT; HYDROLYSIS; SPECIATION; ACTINIDES; CHEMISTRY; DIOXIDE AB The subsurface migration of Pu may be enhanced by the presence of colloidal forms of Pu. Therefore, complete evaluation of the risk posed by subsurface Pu contamination needs to include a detailed physical/chemical understanding of Pu colloid formation and interactions of Pu colloids with environmentally relevant solid phases. Transmission electron microscopy (TEM) was used to characterize Pu nanocolloids and interactions of Pu nanocolloids with goethite and quartz.. We report that intrinsic Pu nanocolloids generated in the absence of goethite or quartz were 2-5 nm in diameter, and both electron diffraction analysis and HRTEM confirm the expected Fm3m space group with the fcc, PuO2 structure. Plutonium nanocolloids formed on goethite have undergone a lattice distortion relative to the ideal fluorite-type structure, fcc, PuO2, resulting in the formation of a bcc, Pu4O7 structure. This structural distortion results from an epitaxial growth of the plutonium colloid on goethite, leading to stronger binding of plutonium to goethite compared with other minerals such as quartz, where the distortion was not observed. This finding provides new insight for understanding how molecular-scale behavior at the mineral-water interface may facilitate transport of plutonium at the field scale. C1 [Powell, Brian A.] Clemson Univ, Anderson, SC 29625 USA. [Dai, Zurong; Zavarin, Mavrik; Zhao, Pihong; Kersting, Annie B.] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Phys & Life Sci Directorate, Livermore, CA 94550 USA. RP Powell, BA (reprint author), Clemson Univ, 342 Comp Court, Anderson, SC 29625 USA. EM bpowell@clemson.edu RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 FU U.S. Department of Energy's Office of Biological and Environmental Research FX Prepared by LLNL under Contract DE-AC52-07NA27344. This work was supported by the Subsurface Biogeochemical Research Program of the U.S. Department of Energy's Office of Biological and Environmental Research. NR 30 TC 55 Z9 55 U1 6 U2 73 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 APR 1 PY 2011 VL 45 IS 7 BP 2698 EP 2703 DI 10.1021/es1033487 PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500031 PM 21446768 ER PT J AU Boggs, MA Minton, T Dong, WM Lomasney, S Islam, MR Gu, BH Wall, NA AF Boggs, Mark A. Minton, Travis Dong, Wenming Lomasney, Samuel Islam, Mohammed R. Gu, Baohua Wall, Nathalie A. TI Interactions of Tc(IV) with Humic Substances SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID CONDITIONAL INTERACTION CONSTANT; TECHNETIUM REDUCTION; THERMODYNAMIC MODEL; IONIC-STRENGTH; COMPLEXATION; SOLUBILITY; SPECTROSCOPY; QUANTIFICATION; DISSOLUTION; SEDIMENTS AB To understand the key processes affecting Tc-99 mobility in the subsurface and help with the remediation of contaminated sites, the binding constants of several humic substances (humic and fulvic acids) with Tc(IV) were determined, using a solvent extraction technique. The novelty of this paper lies in the determination of the binding constants of the complexes formed with the individual species TcO(OH)(+) and TcO(OH)(2)(0). Binding constants were found to be 6.8 and between 3.9 and 4.3, for log beta(1,-1,1) and log beta(1,-2,1), respectively; these values were little modified by a change of ionic strength, in most cases, between 0.1 and 1.0 M, nor were they by the nature and origin of the humic substances. Modeling calculations based on these show TcO(OH) - HA to be the predominant complex in a system containing 20 ppm HA and in the 4-6 pH range, whereas TcO(OH)(2)(0) and TcO(OH)(2) - HA are the major species, in the pH 6-8 range. C1 [Boggs, Mark A.; Minton, Travis; Lomasney, Samuel; Islam, Mohammed R.; Wall, Nathalie A.] Washington State Univ, Dept Chem, Pullman, WA 99164 USA. [Dong, Wenming; Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Wall, NA (reprint author), Washington State Univ, Dept Chem, Pullman, WA 99164 USA. EM nawall@wsu.edu RI Gu, Baohua/B-9511-2012; Boggs, Mark/I-6954-2012; Dong, Wenming/G-3221-2015 OI Gu, Baohua/0000-0002-7299-2956; Dong, Wenming/0000-0003-2074-8887 FU Office of the Biological and Environmental Research, Office of Science, U.S. Department of Energy (DOE) [DE-FG02-08ER64696]; Washington State University; Oak Ridge National Laboratory [DE-AC05-00OR22725] FX This work was supported by the Office of the Biological and Environmental Research, Office of Science, U.S. Department of Energy (DOE) under the grant DE-FG02-08ER64696 with Washington State University and under contract DE-AC05-00OR22725 with Oak Ridge National Laboratory, which is managed by UT-Battelle LLC for DOE. NR 37 TC 20 Z9 22 U1 1 U2 35 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 APR 1 PY 2011 VL 45 IS 7 BP 2718 EP 2724 DI 10.1021/es103390z PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500034 PM 21366306 ER PT J AU Kerisit, S Felmy, AR Ilton, ES AF Kerisit, Sebastien Felmy, Andrew R. Ilton, Eugene S. TI Atomistic Simulations of Uranium Incorporation into Iron (Hydr)Oxides SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID URANYL; HEMATITE; GOETHITE; SURFACES; DIOXIDE; ALKALI; OXIDES; FE AB Atomistic simulations were carried out to characterize the coordination environments of U incorporated in three Fe-(hydr)oxide minerals: goethite, magnetite, and hematite. The simulations provided information on U-O and U-Fe distances, coordination numbers, and lattice distortion for U incorporated in different sites (e.g., unoccupied versus occupied sites, octahedral versus tetrahedral) as a function of the oxidation state of U and charge compensation mechanisms (i.e., deprotonation, vacancy formation, or reduction of Fe(III) to Fe(II)). For goethite, deprotonation of first shell hydroxyls enables substitution of U for Fe(III) with a minimal amount of lattice distortion, whereas substitution in unoccupied octahedral sites induced appreciable distortion to 7-fold coordination regardless of U oxidation states and charge compensation mechanisms. Importantly, U-Fe distances of similar to 3.6 angstrom were associated with structural incorporation of U and cannot be considered diagnostic of simple adsorption to goethite surfaces. For magnetite, the octahedral site accommodates U(V) or U(VI) with little lattice distortion. U substituted for Fe(III) in hematite maintained octahedral coordination in most cases. In general, comparison of the simulations with available experimental data provides further evidence for the structural incorporation of U in iron (hydr)oxide minerals. C1 [Kerisit, Sebastien; Felmy, Andrew R.; Ilton, Eugene S.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. RP Kerisit, S (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. EM sebastien.kerisit@pnl.gov FU U.S. Department of Energy (DOE) through the Office of Basic Energy; DOE's Office of Biological and Environmental Research (OBER) [DE-AC05-76RL01830] FX This research was supported by the U.S. Department of Energy (DOE) through the Office of Basic Energy Sciences-Geosciences program. The computer simulations were performed in part using the Molecular Science Computing Facility (MSCF) in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research (OBER) and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the DOE by Battelle Memorial Institute under Contract DE-AC05-76RL01830. NR 28 TC 23 Z9 24 U1 2 U2 42 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 APR 1 PY 2011 VL 45 IS 7 BP 2770 EP 2776 DI 10.1021/es1037639 PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500041 PM 21391633 ER PT J AU Luo, WS Gu, BH AF Luo, Wensui Gu, Baohua TI Dissolution of Uranium-Bearing Minerals and Mobilization of Uranium by Organic Ligands in a Biologically Reduced Sediment SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID WEATHERED FRACTURED SAPROLITE/SHALE; CONTAMINATED AQUIFER; U(VI) REDUCTION; CITRATE; BIOREDUCTION; STABILITY; COMPLEXES; SULFATE; SIDEROPHORES; REOXIDATION AB The stability and mobility of uranium (U) is a concern following its reductive precipitation or immobilization by techniques such as bioremediation at contaminated sites. In this study, the influences of complexing organic ligands such as citrate and ethylenediaminetetraacetate (EDTA) on the mobilization of U were investigated in both batch and column flow systems using a contaminated and bioreduced sediment. Results indicate that both reduced U(IV) and oxidized U(VI) in the sediment can be effectively mobilized with the addition of EDTA or citrate under anaerobic conditions. The dissolution and mobilization of U appear to be correlated to the dissolution of iron (Fe)- or aluminum (Al)-bearing minerals, with EDTA being more effective (with R-2 >= 0.89) than citrate (R-2 < 0.60) in dissolving these minerals. The column flow experiments confirm that U, Fe, and Al can be mobilized by these ligands under anoxic conditions, although the cumulative amounts of U removal constituted similar to 0.1% of total U present in this sediment following a limited period of leaching. This study concludes that the presence of complexing organic ligands may pose a long-term concern by slowly dissolving U-bearing minerals and mobilizing U even under a strict anaerobic environment. C1 [Luo, Wensui] Chinese Acad Sci, Inst Urban Environm, Xiamen 361021, Peoples R China. [Luo, Wensui; Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Luo, WS (reprint author), Chinese Acad Sci, Inst Urban Environm, Xiamen 361021, Peoples R China. EM wsluo@iue.ac.cn RI Gu, Baohua/B-9511-2012 OI Gu, Baohua/0000-0002-7299-2956 FU UT-Battelle LLC for US DOE [DE-AC05-00OR22725] FX We thank Ms. X. Yin for the ICP-MS analysis of samples, Dr. W. Wu for providing the sediment sample, and Dr. Y. Coquet and Mr. Y. Zhang for editorial assistance. This research was sponsored by the Subsurface Biogeochemical Research (SBR) Program, Office of Biological and Environmental Research, U.S. Department of Energy (DOE). Manuscript preparation was supported in part by the "Hundred Talents Program" of the Chinese Academy of Sciences to W. Luo. Oak Ridge National Laboratory is managed by UT-Battelle LLC for US DOE under contract DE-AC05-00OR22725. NR 43 TC 23 Z9 24 U1 2 U2 39 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 APR 1 PY 2011 VL 45 IS 7 BP 2994 EP 2999 DI 10.1021/es103073u PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500072 PM 21395303 ER PT J AU Xie, XM Wang, M Han, JW AF Xie, Xiaomin Wang, Michael Han, Jeongwoo TI Assessment of Fuel-Cycle Energy Use and Greenhouse Gas Emissions for Fischer-Tropsch Diesel from Coal and Cellulosic Biomass SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID UNITED-STATES AB This study expands and uses the GREET (Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation) model to assess the effects of carbon capture and storage (CCS) technology and cellulosic biomass and coal cofeeding in Fischer-Tropsch (FT) plants on energy use and greenhouse gas (GHG) emissions of FT diesel (FTD). To demonstrate the influence of the coproduct credit methods on FTD life-cycle analysis (LCA) results, two allocation methods based on the energy value and the market revenue of different products and a hybrid method are employed. With the energy-based allocation method, fossil energy use of FTD is less than that of petroleum diesel, and GHG emissions of FTD could be close to zero or even less than zero with CCS when forest residue accounts for 55% or more of the total dry mass input to FTD plants. Without CCS, GHG emissions are reduced to a level equivalent to that from petroleum diesel plants when forest residue accounts for 61% of the total dry mass input. Moreover, we show that coproduct method selection is crucial for LCA results of FTD when a large amount of coproducts is produced. C1 [Xie, Xiaomin] Shanghai Jiao Tong Univ, Key Lab Power Machinery & Engn, State Educ Minist, Shanghai 200240, Peoples R China. [Wang, Michael; Han, Jeongwoo] Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA. RP Xie, XM (reprint author), Shanghai Jiao Tong Univ, Key Lab Power Machinery & Engn, State Educ Minist, 800 Dongchuan Rd, Shanghai 200240, Peoples R China. EM xiexiaomin@sjtu.edu.cn FU U.S. Department of Energy [DE-AC02-06CH11357] FX This work was supported by the U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Vehicle Technology Program, under contract DE-AC02-06CH11357. We thank Mr. Kevin Stork of that DOE office for his support of this study and the anonymous reviewer for the helpful comments on our draft manuscript. NR 33 TC 19 Z9 21 U1 0 U2 27 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 APR 1 PY 2011 VL 45 IS 7 BP 3047 EP 3053 DI 10.1021/es1017703 PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 741CU UT WOS:000288841500080 PM 21370852 ER PT J AU Bairnsfather, C Reichhardt, CJO Reichhardt, C AF Bairnsfather, C. Reichhardt, C. J. Olson Reichhardt, C. TI The effect of pinning on drag in coupled one-dimensional channels of particles SO EPL LA English DT Article ID VORTEX LATTICES; WIGNER CRYSTAL; COULOMB DRAG; DYNAMICS; FLOW AB We consider a simple model for examining the effects of quenched disorder on drag consisting of particles interacting via a Yukawa potential that are placed in two coupled one-dimensional channels. The particles in one channel are driven and experience a drag from the undriven particles in the second channel. In the absence of pinning, for a finite driving force there is no pinned phase; instead, there are two dynamical regimes of completely coupled or locked flow and partially coupled flow. When pinning is added to one or both channels, we find that a remarkably rich variety of dynamical phases and drag effects arise that can be clearly identified by features in the velocity force curves. The presence of quenched disorder in only the undriven channel can induce a pinned phase in both channels. Above the depinning transition, the drag on the driven particles decreases with increasing pinning strength, and for high enough pinning strength, the particles in the undriven channel reach a reentrant pinned phase which produces a complete decoupling of the channels. We map out the dynamic phase diagrams as a function of pinning strength and the density of pinning in each channel. Our results may be relevant for understanding drag coupling in 1D Wigner crystal phases, and the effects we observe could also be explored using colloids in coupled channels produced with optical arrays, vortices in nanostructured superconductors, or other layered systems where drag effects arise. Copyright (C) EPLA, 2011 C1 [Bairnsfather, C.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Bairnsfather, C.; Reichhardt, C. J. Olson; Reichhardt, C.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. RP Bairnsfather, C (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM cjrx@lanl.gov OI Reichhardt, Cynthia/0000-0002-3487-5089 FU NNSA of the U.S. DoE at LANL [DE-AC52-06NA25396] FX This work was carried out under the auspices of the NNSA of the U.S. DoE at LANL under Contract No. DE-AC52-06NA25396. NR 29 TC 4 Z9 4 U1 1 U2 8 PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY PI MULHOUSE PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE SN 0295-5075 EI 1286-4854 J9 EPL-EUROPHYS LETT JI EPL PD APR PY 2011 VL 94 IS 1 AR 18001 DI 10.1209/0295-5075/94/18001 PG 6 WC Physics, Multidisciplinary SC Physics GA 751MM UT WOS:000289622200023 ER PT J AU Airapetian, A Akopov, N Akopov, Z Aschenauer, EC Augustyniak, W Avakian, R Avetissian, A Avetisyan, E Belostotski, S Bianchi, N Blok, HP Borissov, A Bowles, J Bryzgalov, V Burns, J Capiluppi, M Capitani, GP Cisbani, E Ciullo, G Contalbrigo, M Dalpiaz, PF Deconinck, W De Leo, R De Nardo, L De Sanctis, E Diefenthaler, M Di Nezza, P Duren, M Ehrenfried, M Elbakian, G Ellinghaus, F Fabbri, R Fantoni, A Felawka, L Frullani, S Gabbert, D Gapienko, G Gapienko, V Garibaldi, F Gavrilov, G Gharibyan, V Giordano, F Gliske, S Golembiovskaya, M Hadjidakis, C Hartig, M Hasch, D Hill, G Hillenbrand, A Hoek, M Holler, Y Hristova, I Imazu, Y Ivanilov, A Jackson, HE Jo, HS Joosten, S Kaiser, R Karyan, G Keri, T Kinney, E Kisselev, A Kobayashi, N Korotkov, V Kozlov, V Kravchenko, P Krivokhijine, VG Lagamba, L Lamb, R Lapikas, L Lehmann, I Lenisa, P Linden-Levy, LA Ruiz, AL Lorenzon, W Lu, XG Lu, XR Ma, BQ Mahon, D Makins, NCR Manaenkov, SI Manfre, L Mao, Y Marianski, B de la Ossa, AM Marukyan, H Miller, CA Miyachi, Y Movsisyan, A Muccifora, V Murray, M Mussgiller, A Nappi, E Naryshkin, Y Nass, A Negodaev, M Nowak, WD Pappalardo, LL Perez-Benito, R Pickert, N Reimer, PE Reolon, AR Riedl, C Rith, K Rosner, G Rostomyan, A Rubin, J Ryckbosch, D Salomatin, Y Sanftl, F Schafer, A Schnell, G Schuler, KP Seitz, B Shibata, TA Shutov, V Stancari, M Statera, M Steffens, E Steijger, JJM Stinzing, F Taroian, S Terkulov, A Trzcinski, A Tytgat, M Vandenbroucke, A Van Haarlem, Y Van Hulse, C Veretennikov, D Vikhrov, V Vilardi, I Wang, S Yaschenko, S Yen, S Yu, W Zihlmann, B Zupranski, P AF Airapetian, A. Akopov, N. Akopov, Z. Aschenauer, E. C. Augustyniak, W. Avakian, R. Avetissian, A. Avetisyan, E. Belostotski, S. Bianchi, N. Blok, H. P. Borissov, A. Bowles, J. Bryzgalov, V. Burns, J. Capiluppi, M. Capitani, G. P. Cisbani, E. Ciullo, G. Contalbrigo, M. Dalpiaz, P. F. Deconinck, W. De Leo, R. De Nardo, L. De Sanctis, E. Diefenthaler, M. Di Nezza, P. Dueren, M. Ehrenfried, M. Elbakian, G. Ellinghaus, F. Fabbri, R. Fantoni, A. Felawka, L. Frullani, S. Gabbert, D. Gapienko, G. Gapienko, V. Garibaldi, F. Gavrilov, G. Gharibyan, V. Giordano, F. Gliske, S. Golembiovskaya, M. Hadjidakis, C. Hartig, M. Hasch, D. Hill, G. Hillenbrand, A. Hoek, M. Holler, Y. Hristova, I. Imazu, Y. Ivanilov, A. Jackson, H. E. Jo, H. S. Joosten, S. Kaiser, R. Karyan, G. Keri, T. Kinney, E. Kisselev, A. Kobayashi, N. Korotkov, V. Kozlov, V. Kravchenko, P. Krivokhijine, V. G. Lagamba, L. Lamb, R. Lapikas, L. Lehmann, I. Lenisa, P. Linden-Levy, L. A. Ruiz, A. Lopez Lorenzon, W. Lu, X. -G. Lu, X. -R. Ma, B. -Q. Mahon, D. Makins, N. C. R. Manaenkov, S. I. Manfre, L. Mao, Y. Marianski, B. de la Ossa, A. Martinez Marukyan, H. Miller, C. A. Miyachi, Y. Movsisyan, A. Muccifora, V. Murray, M. Mussgiller, A. Nappi, E. Naryshkin, Y. Nass, A. Negodaev, M. Nowak, W. -D. Pappalardo, L. L. Perez-Benito, R. Pickert, N. Reimer, P. E. Reolon, A. R. Riedl, C. Rith, K. Rosner, G. Rostomyan, A. Rubin, J. Ryckbosch, D. Salomatin, Y. Sanftl, F. Schaefer, A. Schnell, G. Schueler, K. P. Seitz, B. Shibata, T. -A. Shutov, V. Stancari, M. Statera, M. Steffens, E. Steijger, J. J. M. Stinzing, F. Taroian, S. Terkulov, A. Trzcinski, A. Tytgat, M. Vandenbroucke, A. Van Haarlem, Y. Van Hulse, C. Veretennikov, D. Vikhrov, V. Vilardi, I. Wang, S. Yaschenko, S. Yen, S. Yu, W. Zihlmann, B. Zupranski, P. CA HERMES Collaboration TI Ratios of helicity amplitudes for exclusive rho(0) electroproduction SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID VECTOR-MESON PRODUCTION; GENERALIZED PARTON DISTRIBUTIONS; ELASTIC ELECTROPRODUCTION; DIFFRACTIVE ELECTROPRODUCTION; J/PSI MESONS; P(0) MESONS; HERA; SCATTERING; SPIN; QCD AB Exclusive rho(0)-meson electroproduction is studied in the HERMES experiment, using a 27.6 GeV longitudinally polarized electron/positron beam and unpolarized hydrogen and deuterium targets in the kinematic region 0.5 GeV2 < Q(2) < 7.0 GeV2, 3.0 GeV < W < 6.3 GeV, and -t' < 0.4 GeV2. Real and imaginary parts of the ratios of the natural-parity-exchange helicity amplitudes T-11 (gamma*(T) -> rho T), T-01 (gamma*(T) -> rho(L)), T-10 (gamma*(L) -> rho(T)), and T1-1 (gamma*(-T) -> rho(T)) to T-00 (gamma*(L) -> rho(L)) are extracted from the data. For the unnatural-parity-exchange amplitude U-11, the ratio vertical bar U-11/T-00 vertical bar is obtained. The Q(2) and t' dependences of these ratios are presented and compared with perturbative QCD predictions. C1 [Jackson, H. E.; Reimer, P. E.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [De Leo, R.; Lagamba, L.; Nappi, E.; Vilardi, I.] Ist Nazl Fis Nucl, Sez Bari, I-70124 Bari, Italy. [Ma, B. -Q.; Mao, Y.; Wang, S.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China. [Ellinghaus, F.; Kinney, E.; de la Ossa, A. Martinez] Univ Colorado, Nucl Phys Lab, Boulder, CO 80309 USA. [Akopov, Z.; Avetisyan, E.; Borissov, A.; Deconinck, W.; De Nardo, L.; Gavrilov, G.; Giordano, F.; Hartig, M.; Holler, Y.; Mussgiller, A.; Rostomyan, A.; Schueler, K. P.; Zihlmann, B.] DESY, D-22603 Hamburg, Germany. [Aschenauer, E. C.; Fabbri, R.; Gabbert, D.; Golembiovskaya, M.; Hillenbrand, A.; Hristova, I.; Lu, X. -G.; Negodaev, M.; Nowak, W. -D.; Riedl, C.; Schnell, G.; Yaschenko, S.] DESY, D-15738 Zeuthen, Germany. [Krivokhijine, V. G.; Shutov, V.] Joint Inst Nucl Res, Dubna 141980, Russia. [Diefenthaler, M.; Mussgiller, A.; Nass, A.; Pickert, N.; Rith, K.; Steffens, E.; Stinzing, F.; Yaschenko, S.] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany. [Capiluppi, M.; Ciullo, G.; Contalbrigo, M.; Dalpiaz, P. F.; Giordano, F.; Lenisa, P.; Pappalardo, L. L.; Stancari, M.; Statera, M.] Univ Ferrara, Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy. [Capiluppi, M.; Ciullo, G.; Contalbrigo, M.; Dalpiaz, P. F.; Giordano, F.; Lenisa, P.; Pappalardo, L. L.; Stancari, M.; Statera, M.] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy. [Bianchi, N.; Capitani, G. P.; De Sanctis, E.; Di Nezza, P.; Fantoni, A.; Hadjidakis, C.; Hasch, D.; Muccifora, V.; Reolon, A. R.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [De Nardo, L.; Jo, H. S.; Ruiz, A. Lopez; Ryckbosch, D.; Schnell, G.; Tytgat, M.; Vandenbroucke, A.; Van Haarlem, Y.; Van Hulse, C.] Univ Ghent, Dept Subat & Radiat Phys, B-9000 Ghent, Belgium. [Airapetian, A.; Dueren, M.; Ehrenfried, M.; Keri, T.; Perez-Benito, R.; Yu, W.] Univ Giessen, Inst Phys, D-35392 Giessen, Germany. [Bowles, J.; Burns, J.; Hill, G.; Hoek, M.; Kaiser, R.; Lehmann, I.; Mahon, D.; Murray, M.; Rosner, G.; Seitz, B.] Univ Glasgow, SUPA, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland. [Diefenthaler, M.; Joosten, S.; Lamb, R.; Linden-Levy, L. A.; Makins, N. C. R.; Rubin, J.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Airapetian, A.; Gliske, S.; Lorenzon, W.] Univ Michigan, Randall Lab Phys, Ann Arbor, MI 48109 USA. [Kozlov, V.; Terkulov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Blok, H. P.; Lapikas, L.; Steijger, J. J. M.] Natl Inst Subat Phys Nikhef, NL-1009 DB Amsterdam, Netherlands. [Belostotski, S.; Gavrilov, G.; Kisselev, A.; Kravchenko, P.; Manaenkov, S. I.; Naryshkin, Y.; Veretennikov, D.; Vikhrov, V.] St Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad Reg, Russia. [Bryzgalov, V.; Gapienko, G.; Gapienko, V.; Ivanilov, A.; Korotkov, V.; Salomatin, Y.] Inst High Energy Phys, Protvino 142281, Moscow Region, Russia. [Sanftl, F.; Schaefer, A.] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany. [Cisbani, E.; Frullani, S.; Garibaldi, F.; Manfre, L.] Ist Nazl Fis Nucl, Grp Sanita, Sez Roma 1, Rome, Italy. [Cisbani, E.; Frullani, S.; Garibaldi, F.; Manfre, L.] Ist Super Sanita, Phys Lab, I-00161 Rome, Italy. [Felawka, L.; Gavrilov, G.; Miller, C. A.; Yen, S.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Imazu, Y.; Kobayashi, N.; Lu, X. -R.; Miyachi, Y.; Shibata, T. -A.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan. [Blok, H. P.] Vrije Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands. [Augustyniak, W.; Marianski, B.; Trzcinski, A.; Zupranski, P.] Andrzej Soltan Inst Nucl Studies, PL-00689 Warsaw, Poland. [Akopov, N.; Avakian, R.; Avetissian, A.; Elbakian, G.; Gharibyan, V.; Karyan, G.; Marukyan, H.; Movsisyan, A.; Taroian, S.] Yerevan Phys Inst, Yerevan 375036, Armenia. RP Airapetian, A (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM klaus.rith@desy.de RI Cisbani, Evaristo/C-9249-2011; Deconinck, Wouter/F-4054-2012; Gavrilov, Gennady/C-6260-2013; Reimer, Paul/E-2223-2013; Negodaev, Mikhail/A-7026-2014; Taroian, Sarkis/E-1668-2014; Kozlov, Valentin/M-8000-2015; Terkulov, Adel/M-8581-2015 OI Cisbani, Evaristo/0000-0002-6774-8473; FU DESY; Ministry of Economy; Ministry of Education and Science of Armenia; FWO-Flanders; IWT, Belgium; Natural Sciences and Engineering Research Council of Canada; National Natural Science Foundation of China; Alexander von Humboldt Stiftung; German Bundesministerium fur Bildung und Forschung (BMBF); Deutsche Forschungsgemeinschaft (DFG); Italian Istituto Nazionale di Fisica Nucleare (INFN); MEXT; JSPS; G-COE of Japan; Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); Russian Academy of Science; Russian Federal Agency for Science and Innovations; U.K. Engineering and Physical Sciences Research Council; Science and Technology Facilities Council; Scottish Universities Physics Alliance; U.S. Department of Energy (DOE); National Science Foundation (NSF) FX We gratefully acknowledge the DESY management for its support and the staff at DESY and the collaborating institutions for their significant effort. This work was supported by the Ministry of Economy and the Ministry of Education and Science of Armenia; the FWO-Flanders and IWT, Belgium; the Natural Sciences and Engineering Research Council of Canada; the National Natural Science Foundation of China; the Alexander von Humboldt Stiftung, the German Bundesministerium fur Bildung und Forschung (BMBF), and the Deutsche Forschungsgemeinschaft (DFG); the Italian Istituto Nazionale di Fisica Nucleare (INFN); the MEXT, JSPS, and G-COE of Japan; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); the Russian Academy of Science and the Russian Federal Agency for Science and Innovations; the U.K. Engineering and Physical Sciences Research Council, the Science and Technology Facilities Council, and the Scottish Universities Physics Alliance; and the U.S. Department of Energy (DOE) and the National Science Foundation (NSF). NR 55 TC 9 Z9 9 U1 1 U2 12 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 APR PY 2011 VL 71 IS 4 AR 1609 DI 10.1140/epjc/s10052-011-1609-2 PG 25 WC Physics, Particles & Fields SC Physics GA 747BZ UT WOS:000289296600002 ER PT J AU Sprague, MA Colvin, ME AF Sprague, Michael A. Colvin, Michael E. TI A mixture-enthalpy fixed-grid model for temperature evolution and heterocyclic-amine formation in a frying beef patty SO FOOD RESEARCH INTERNATIONAL LA English DT Article DE Cooking simulations; Spectral finite-element methods; Carcinogens; Mutagens ID MASS-TRANSFER; HEAT-TRANSFER; MEAT PATTIES; MICROBIAL SAFETY; GROUND-BEEF; HAMBURGER PATTY; COOKING; SIMULATION; FOODS; CARCINOGENICITY AB The ideal cooking process would heat food to a sufficient temperature throughout to kill bacteria without heating the food to temperatures that promote formation of toxic or carcinogenic compounds. Experimentally validated computer models have an important role to play in designing cooking processes since they allow rapid evaluations of different conditions without the confounding effects of experimental variation. In this paper we derive a mathematical model governing the heat and water transport in a cylindrical pan-fried beef patty. The continuum temperature model stems from a mixture-enthalpy formulation that accommodates the liquid and vapor states of water along with fat and protein. The governing equations were spatially discretized with Legendre spectral finite elements. All but two of the model properties were taken from the literature, with the remaining two determined through a comparison of numerical and physical experiments. These parameters were shown to produce solutions in agreement with a different set of experimental results. The model was used to calculate the formation of heterocyclic-amine (HA) compounds (known DNA mutagens and carcinogens). Results provide an explanation based on patty temperature for previous experimental studies showing that frequent patty flipping yields a dramatic reduction in HAs. Published by Elsevier Ltd. C1 Univ Calif, Ctr Computat Biol, Merced, CA 95343 USA. Univ Calif, Sch Nat Sci, Merced, CA 95343 USA. RP Sprague, MA (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd,MS 1608, Golden, CO 80401 USA. EM michael.a.sprague@nrel.gov FU National Cancer Institute [CA55861]; US Department of Energy, Office of Science, Offices of Advanced Scientific Computing Research; U.C. Merced Center for Computational Biology [DE-FG02-04ER25625] FX This work was funded by National Cancer Institute grant CA55861 and by the US Department of Energy, Office of Science, Offices of Advanced Scientific Computing Research, and Biological 82 Environmental Research through the U.C. Merced Center for Computational Biology #DE-FG02-04ER25625. M.A. Sprague thanks Dr. Stephen Hammond and Dr. Wesley Jones for providing him the opportunity to complete this work while at the National Renewable Energy Laboratory. NR 39 TC 6 Z9 6 U1 1 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0963-9969 J9 FOOD RES INT JI Food Res. Int. PD APR PY 2011 VL 44 IS 3 BP 789 EP 797 DI 10.1016/j.foodres.2011.01.011 PG 9 WC Food Science & Technology SC Food Science & Technology GA 748OR UT WOS:000289400400020 ER PT J AU Fletcher, RJ Robertson, BA Evans, J Doran, PJ Alavalapati, JRR Schemske, DW AF Fletcher, Robert J., Jr. Robertson, Bruce A. Evans, Jason Doran, Patrick J. Alavalapati, Janaki R. R. Schemske, Douglas W. TI Biodiversity conservation in the era of biofuels: risks and opportunities SO FRONTIERS IN ECOLOGY AND THE ENVIRONMENT LA English DT Review ID UNITED-STATES; AGRICULTURAL LANDSCAPE; PLANTATION FORESTS; HABITAT LOSS; LAND-USE; BIOENERGY; CORN; METAANALYSIS; SWITCHGRASS; BIOMASS AB Growing demand for alternative energy sources has contributed to increased biofuel production, but the effects on biodiversity of land-use change to biofuel crops remain unclear. Using a meta-analysis for crops being used or considered in the US, we find that vertebrate diversity and abundance are generally lower in biofuel crop habitats relative to the non-crop habitats that these crops may replace. Diversity effects are greater for corn than for pine and poplar, and birds of conservation concern experience greater negative effects from corn than species of less concern. Yet conversion of row-crop fields to grasslands dedicated to biofuels could increase local diversity and abundance of birds. To minimize impacts of biofuel crops on biodiversity, we recommend management practices that reduce chemical inputs, increase heterogeneity within fields, and delay harvests until bird breeding has ceased. We encourage research that will move us toward a sustainable biofuels economy, including the use of native plants, development of robust environmental criteria for evaluating biofuel crops, and integrated cost-benefit analysis of potential land-use change. C1 [Fletcher, Robert J., Jr.; Evans, Jason] Univ Florida, Dept Wildlife Ecol & Conservat, Gainesville, FL 32610 USA. [Robertson, Bruce A.; Schemske, Douglas W.] Michigan State Univ, WK Kellogg Biol Stn, Hickory Corners, MI 49060 USA. [Robertson, Bruce A.; Schemske, Douglas W.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr, Lansing, MI USA. [Doran, Patrick J.] Michigan Field Off, Lansing, MI USA. [Alavalapati, Janaki R. R.] Virginia Tech Univ, Dept Forestry, Blacksburg, VA USA. RP Fletcher, RJ (reprint author), Univ Florida, Dept Wildlife Ecol & Conservat, Gainesville, FL 32610 USA. EM robert.fletcher@ufl.edu OI Fletcher, Robert/0000-0003-1717-5707 FU National Council on Science and the Environment; DOE Great Lakes Bioenergy Research Center [DE-FC02-07ER64494]; Department of Energy; Michigan State University; Nature Conservancy's Great Lakes Fund for Partnership in Conservation Science and Economics FX We thank the Wildlife Habitat Research Policy Program of the National Council on Science and the Environment, the DOE Great Lakes Bioenergy Research Center (DE-FC02-07ER64494), the Department of Energy, Michigan State University, and The Nature Conservancy's Great Lakes Fund for Partnership in Conservation Science and Economics for funding and logistical support. Thanks to A Pendleton, J Kjer, M Acevedo, and M Wietlisbach for invaluable help on the meta-analysis. D Landis and J Orrock provided reviews on earlier manuscripts. We thank B Bats, S Krauskopf, W Lynch, C Miller, and S Pruett for providing photographs. NR 45 TC 69 Z9 71 U1 10 U2 122 PU ECOLOGICAL SOC AMER PI WASHINGTON PA 1990 M STREET NW, STE 700, WASHINGTON, DC 20036 USA SN 1540-9295 EI 1540-9309 J9 FRONT ECOL ENVIRON JI Front. Ecol. Environ. PD APR PY 2011 VL 9 IS 3 BP 161 EP 168 DI 10.1890/090091 PG 8 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA 748GK UT WOS:000289377800017 ER PT J AU Naidu, DS Rieger, CG AF Naidu, D. Subbaram Rieger, Craig G. TI Advanced control strategies for HVACR systemsAn overview: Part II: Soft and fusion control SO HVAC&R RESEARCH LA English DT Article ID AIR-CONDITIONING SYSTEMS; FAULT-TOLERANT CONTROL; MODEL-PREDICTIVE CONTROL; FUZZY-GENETIC ALGORITHM; NEURAL-NETWORK; GLOBAL OPTIMIZATION; BUILDING SYSTEMS; ADAPTIVE-CONTROL; COOLED CHILLER; DESIGN AB A chronological overview of the advanced control strategies for HVACR is presented. The overview focuses on hard-computing or control techniques, such as proportional-integral-derivative, optimal, nonlinear, adaptive, and robust; soft-computing or control techniques, such as neural networks, fuzzy logic, genetic algorithms; and the fusion or hybrid of hard and soft control techniques. Part I focused on hard-control strategies; Part II focuses on soft and fusion control and some future directions in HVAR research. This overview is not intended to be an exhaustive survey on this topic, and any omissions of other works is purely unintentional. C1 [Naidu, D. Subbaram] Idaho State Univ, Sch Engn, Dept Elect Engn & Comp Sci, Pocatello, ID 83209 USA. [Rieger, Craig G.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Naidu, DS (reprint author), Idaho State Univ, Sch Engn, Dept Elect Engn & Comp Sci, 921 S 8th Ave,Stop 8060, Pocatello, ID 83209 USA. EM naiduds@isu.edu NR 116 TC 12 Z9 12 U1 1 U2 9 PU TAYLOR & FRANCIS INC PI PHILADELPHIA PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA SN 1078-9669 J9 HVAC&R RES JI HVAC&R Res. PD APR PY 2011 VL 17 IS 2 BP 144 EP 158 AR PII 936265622 DI 10.1080/10789669.2011.555650 PG 15 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 750SE UT WOS:000289567500003 ER PT J AU Sherman, MH Logue, JM Singer, BC AF Sherman, Max H. Logue, Jennifer M. Singer, Brett C. TI Infiltration effects on residential pollutant concentrations for continuous and intermittent mechanical ventilation approaches SO HVAC&R RESEARCH LA English DT Article ID UNITED-STATES; INDOOR AB The prevailing residential ventilation standard in North America, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 62.2, specifies volumetric airflow requirements as a function of the overall size of the home and the number of bedrooms; assumes a fixed, minimal amount of infiltration; and requires mechanical ventilation to achieve the remainder. The standard allows for infiltration credits and intermittent ventilation patterns that can be shown to provide comparable performance. Whole-house ventilation methods have a substantial effect on time-varying indoor pollutant concentrations. If alternatives specified by Standard 62.2, such as intermittent ventilation, are used, short-term pollutant concentrations could exceed acute health standards, even if chronic health standards are met. A methodology is presented for comparing ASHRAE- and non-ASHRAE-specified ventilation scenarios on relative indoor pollutant concentrations. Numerical modeling is used to compare the maximum time-averaged concentrations for acute exposure relevant (1-h, 8-h, 24-h) and chronic exposure relevant (1-year) time periods for four different ventilation scenarios in six climates with a range of normalized leakage values. The results suggest that long-term concentrations are the most important metric for assessing the effectiveness of whole-house ventilation systems in meeting exposure standards and that, if chronic health exposure standards are met, acute standards will also be met. C1 [Sherman, Max H.; Logue, Jennifer M.; Singer, Brett C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Energy & Performance Bldg Grp, EETD, Berkeley, CA 94720 USA. RP Logue, JM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Energy & Performance Bldg Grp, EETD, Berkeley, CA 94720 USA. EM jmlogue@lbl.gov FU U.S. Department of Energy; Office of Energy Efficiency; Renewable Energy under DOE [DE-AC02-05CH11231]; U.S. Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control [I-PHI-01070]; California Energy Commission [500-08-06] FX Funding was provided by the U.S. Department of Energy Building Technologies Program, Office of Energy Efficiency and Renewable Energy under DOE contract no. DE-AC02-05CH11231, by the U.S. Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control through Interagency Agreement I-PHI-01070, and by the California Energy Commission through contract 500-08-06. NR 25 TC 9 Z9 9 U1 0 U2 7 PU TAYLOR & FRANCIS INC PI PHILADELPHIA PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA SN 1078-9669 J9 HVAC&R RES JI HVAC&R Res. PD APR PY 2011 VL 17 IS 2 BP 159 EP 173 AR PII 936264336 DI 10.1080/10789669.2011.543258 PG 15 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 750SE UT WOS:000289567500004 ER PT J AU Eliza, SA Islam, SK Rahman, T Bull, ND Blalock, BJ Baylor, LR Ericson, MN Gardner, WL AF Eliza, Sazia A. Islam, Syed K. Rahman, Touhidur Bull, Nora Dianne Blalock, Benjamin J. Baylor, Larry R. Ericson, M. Nance Gardner, Walter L. TI A Precision Dose Control Circuit for Maskless E-Beam Lithography With Massively Parallel Vertically Aligned Carbon Nanofibers SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article DE Dose control circuit (DCC); maskless lithography; vertically aligned carbon nanofiber (VACNF) ID ARRAY LITHOGRAPHY; ELECTRICAL CHARACTERISTICS; MICROCATHODES; FABRICATION; NANOTUBES; ELECTRODE; COLUMNS AB This paper describes a highly accurate dose control circuit (DCC) for the emission of a desired number of electrons from vertically aligned carbon nanofibers (VACNFs) in a massively parallel maskless e-beam lithography system. The parasitic components within the VACNF device cause a premature termination of the electron emission, resulting in underexposure of the photoresist. In this paper, we compensate for the effects of the parasitic components and noise while reducing the area of the chip and achieving a precise count of emitted electrons from the VACNFs to obtain the optimum dose for the e-beam lithography. C1 [Eliza, Sazia A.; Islam, Syed K.; Rahman, Touhidur; Bull, Nora Dianne; Blalock, Benjamin J.] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. [Baylor, Larry R.; Gardner, Walter L.] Oak Ridge Natl Lab, Fus Energy Div, Oak Ridge, TN 37831 USA. [Ericson, M. Nance] Oak Ridge Natl Lab, Engn Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Eliza, SA (reprint author), Sonoma State Univ, Dept Engn, Rohnert Pk, CA 94928 USA. EM saziaeliza@gmail.com; sislam@utk.edu RI Ericson, Milton/H-9880-2016; Ezell, Nora/C-3942-2016 OI Ericson, Milton/0000-0002-6628-4865; Ezell, Nora/0000-0001-9334-5822 FU Defense Advanced Research Projects Agency (DARPA) [DARPA-MIPR-97-1357] FX Manuscript received April 29, 2010; revised August 18, 2010; accepted October 5, 2010. Date of publication December 6, 2010; date of current version March 8, 2011. This work was supported by the Defense Advanced Research Projects Agency (DARPA) under Contract DARPA-MIPR-97-1357. The Associate Editor coordinating the review process for this paper was Dr. Theodore Laopoulos. NR 20 TC 1 Z9 1 U1 2 U2 10 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9456 EI 1557-9662 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD APR PY 2011 VL 60 IS 4 BP 1132 EP 1140 DI 10.1109/TIM.2010.2090691 PG 9 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 746AJ UT WOS:000289212900002 ER PT J AU Quiter, BJ Ludewigt, BA Mozin, VV Prussin, SG AF Quiter, Brian J. Ludewigt, Bernhard A. Mozin, Vladimir V. Prussin, Stanley G. TI Nuclear Resonance Fluorescence for Materials Assay SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE MCNPX; non-destructive analysis; nuclear resonance fluorescence; nuclear safeguards ID SCATTERING AB This paper discusses the use of nuclear resonance fluorescence (NRF) techniques for the isotopic and quantitative assaying of radioactive material. Potential applications include age-dating of an unknown radioactive source, pre- and post-detonation nuclear forensics and safeguards for nuclear fuel cycles Examples of age-dating a strong radioactive source and assaying a spent fuel pin are discussed. The modeling work has ben performed with the Monte Carlo radiation transport computer code MCNPX and the capability to simulate NRF has bee added to the code. Discussed are the limitations in MCNPX's photon transport physics for accurately describing photon scattering processes that are important contributions to the background and impact the applicability of the NRF assay technique. C1 [Quiter, Brian J.; Ludewigt, Bernhard A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Mozin, Vladimir V.; Prussin, Stanley G.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. RP Quiter, BJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM bjquiter@lbl.gov; Bern-hard_Ludewigt@lbl.gov; vmozin@berkeley.edu; prussin@uclink4.berkeley.edu FU National Science Foundation; Department of Homeland Security [BS123456]; Office of Science of the U.S. Department of Energy, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231] FX Manuscript received June 29, 2009; accepted February 01, 2011. Date of publication March 03, 2011; date of current version April 13, 2011. This work was supported by an ARI Grant from the National Science Foundation and the Department of Homeland Security BS123456 and in part by the Director, Office of Science of the U.S. Department of Energy, Lawrence Berkeley National Laboratory, under Contract DE-AC02-05CH11231. NR 19 TC 9 Z9 9 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 EI 1558-1578 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD APR PY 2011 VL 58 IS 2 BP 400 EP 403 DI 10.1109/TNS.2011.2112777 PG 4 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 749PJ UT WOS:000289480500006 ER PT J AU Parker, S Kok, A Kenney, C Jarron, P Hasi, J Despeisse, M Da Via, C Anelli, G AF Parker, Sherwood Kok, Angela Kenney, Christopher Jarron, Pierre Hasi, Jasmine Despeisse, Matthieu Da Via, Cinzia Anelli, Giovanni TI Increased Speed: 3D Silicon Sensors; Fast Current Amplifiers SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE Fast pulses; short time resolution; silicon detectors; solid-state detectors; speed; 3D sensors ID M CMOS TECHNOLOGY; TRANSIMPEDANCE AMPLIFIER; RADIATION DETECTORS; STRIP DETECTORS; DUAL READOUT; CHARGE; ARCHITECTURE; FABRICATION; SYSTEMS; DESIGN AB The authors describe techniques to make fast, sub-nanosecond time resolution solid-state detector systems using sensors with 3D electrodes, current amplifiers, constant-fraction comparators or fast wave-form recorders, and some of the next steps to reach still faster results. C1 [Parker, Sherwood] Univ Hawaii, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Kok, Angela] SINTEF, MinaLab, N-0314 Oslo, Norway. [Kenney, Christopher; Hasi, Jasmine] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Jarron, Pierre; Anelli, Giovanni] CERN, CH-1211 Geneva 23, Switzerland. [Despeisse, Matthieu] Ecole Polytech Fed Lausanne, Inst Microengn IMT, Photovolta & Thin Film Elect Lab, CH-2000 Neuchatel, Switzerland. [Da Via, Cinzia] Univ Manchester, Dept Phys & Astron, Manchester MI3 9PL, Lancs, England. RP Parker, S (reprint author), Univ Hawaii, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM sher@slac.stanford.edu; cinzia.da.via@cern.ch RI Despeisse, Matthieu/E-3821-2017 OI Despeisse, Matthieu/0000-0002-8688-4681 FU U.S. Department of Energy [DE-FG02-04ER41291]; National Science Foundation [ECS-9731293] FX Manuscript received April 23, 2010; revised August 18, 2010, October 27, 2010; accepted December 12, 2010. Date of publication March 17, 2011; date of current version April 13, 2011. This work was supported in part by the U.S. Department of Energy under Grants DE-FG02-04ER41291, and was performed in part at the Stanford Nanofabrication Facility (a member of the National Nanotechnology Infrastructure Network), which is supported by the National Science Foundation under Grant ECS-9731293. NR 45 TC 6 Z9 6 U1 0 U2 8 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 APR PY 2011 VL 58 IS 2 BP 404 EP 417 DI 10.1109/TNS.2011.2105889 PG 14 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 749PJ UT WOS:000289480500007 ER PT J AU Raitses, Y Kaganovich, ID Khrabrov, A Sydorenko, D Fisch, NJ Smolyakov, A AF Raitses, Yevgeny Kaganovich, Igor D. Khrabrov, Alexander Sydorenko, Dmytro Fisch, Nathaniel J. Smolyakov, Andrei TI Effect of Secondary Electron Emission on Electron Cross-Field Current in E x B Discharges SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article DE Cross-field transport; gas discharges; electron kinetics; magnetized plasmas; plasma thrusters; plasma-wall interaction ID STATIONARY PLASMA THRUSTERS; HALL THRUSTER; SEGMENTED-ELECTRODE; MAGNETIC-FIELD; WALL INTERACTION; CONDUCTIVITY; DEVICES; MODEL; PROBE; FLOW AB This paper reviews and discusses recent experimental, theoretical, and numerical studies of plasma-wall interaction in a weakly collisional magnetized plasma bounded with channel walls made from different materials. A low-pressure E x B plasma discharge of the Hall thruster was used to characterize the electron current across the magnetic field and its dependence on the applied voltage and the electron-induced secondary electron emission (SEE) from the channel wall. The presence of a depleted anisotropic electron energy distribution function with beams of secondary electrons was predicted to explain the enhancement of the electron cross-field current observed in experiments. Without the SEE, the electron cross-field transport can be reduced from anomalously high to nearly classical collisional level. The suppression of the SEE was achieved using an engineered carbon-velvet material for the channel walls. Both theoretically and experimentally, it is shown that the electron emission from the walls can limit the maximum achievable electric field in the magnetized plasma. With nonemitting walls, the maximum electric field in the thruster can approach a fundamental limit for a quasi-neutral plasma. C1 [Raitses, Yevgeny; Kaganovich, Igor D.; Khrabrov, Alexander; Fisch, Nathaniel J.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Sydorenko, Dmytro] Univ Alberta, Edmonton, AB T6G 2G7, Canada. [Smolyakov, Andrei] Univ Saskatchewan, Saskatoon, SK S7N 5E2, Canada. RP Raitses, Y (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM yraitses@pppl.gov FU U.S. Department of Energy [AC02-76CH0-3073]; Air Force Office of Scientific Research FX Manuscript received October 7, 2010; revised December 15, 2010; accepted December 24, 2010. Date of publication March 9, 2011; date of current version April 13, 2011. This work was supported in part by the U.S. Department of Energy under Contract AC02-76CH0-3073 and in part by the Air Force Office of Scientific Research. NR 66 TC 29 Z9 29 U1 3 U2 21 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 APR PY 2011 VL 39 IS 4 BP 995 EP 1006 DI 10.1109/TPS.2011.2109403 PN 1 PG 12 WC Physics, Fluids & Plasmas SC Physics GA 749NS UT WOS:000289475700006 ER PT J AU Weil, KS Brady, MP AF Weil, K. Scott Brady, Michael P. TI 20WHEC2014 the 20th World Hydrogen Energy Conference 20WHEC2014 in Gwangju, Korea June 15-20, 2014 Intro to Special Issue SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Editorial Material C1 [Weil, K. Scott] Pacific NW Natl Lab, Dept Mat Sci, Richland, WA 99352 USA. [Brady, Michael P.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Weil, KS (reprint author), Pacific NW Natl Lab, Dept Mat Sci, 902 Battelle Blvd,MSIN K2-03, Richland, WA 99352 USA. EM scott.weil@pnl.gov; bradymp@ornl.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 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4518 EP 4518 DI 10.1016/j.ijhydene.2010.06.086 PG 1 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000032 ER PT J AU Darsell, JT Weil, KS AF Darsell, Jens T. Weil, K. Scott TI High temperature strength of YSZ joints brazed with palladium silver copper oxide filler metals SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE Silver; Copper oxide; Palladium; Air brazing; Joint strength; Elevated temperature ID AG-CUOX; SYSTEM; ADDITIONS; BEHAVIOR AB The Ag-CuOx system is being investigated as potential filler metals for use in air brazing high temperature electrochemical devices such as solid oxide fuel cells and gas concentrators. The current study examines the effects of palladium addition on the high temperature joint strength of specimens prepared from yttria stabilized zirconia (YSZ) bars brazed with the binary Ag-CuOx, and 15Pd-Ag-CuO. It was found that while the binary Ag-CuOx system exhibits stronger room temperature strength than the 15Pd system the strength is reduced to values equivalent of the 15Pd system at 800 degrees C. The 15Pd system exhibits a lower ambient temperature strength that is retained at 800 degrees C. In both systems the failure mechanism at high temperature appears to be peeling of the noble metal component from the oxide phases and tearing through the noble metal phase whereas sufficient adhesion is retained at lower temperatures to cause fracture of the YSZ substrate. Copyright (C ) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Darsell, Jens T.; Weil, K. Scott] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Darsell, JT (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM jens.darsell@pnl.gov; scott.weil@pnl.gov NR 17 TC 4 Z9 4 U1 0 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4519 EP 4524 DI 10.1016/j.ijhydene.2010.05.018 PG 6 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000033 ER PT J AU Wu, JW Gemmen, RS Manivannan, A Liu, XB AF Wu, Junwei Gemmen, Randall S. Manivannan, Ayyakkannu Liu, Xingbo TI Investigation of Mn/Co coated T441 alloy as SOFC interconnect by on-cell tests SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE SOFC; Interconnect; Laves phase; Electrodeposition; On-cell test ID FERRITIC STAINLESS-STEELS; OXIDE FUEL-CELLS; MN-CO ALLOYS; OXIDATION RESISTANCE; METALLIC INTERCONNECTS; COATINGS; PERFORMANCE; ATMOSPHERE AB T441 has been identified as the candidate for SOFC interconnect material because it is assumed that with the addition of Nb, Ti in T441, the formation of continuous silica sublayer could be avoided or delayed due to Nb and Si rich secondary phase formation stabilizing silicon migration. Previously, electrodeposition Mn/Co alloys followed by oxidation has been proved as a simple and cost effective method to fabricate (Mn, Co)(3)O-4 coatings. In this work, Mn/Co coated T441 interconnects were tested as the cathode current collector of solid oxide fuel cells. For comparison, uncoated and 500 h pre-oxidized T441 interconnects were tested as well. The cell with coated interconnect shows stable performance during total 850 h test, even after severe thermal cycles (heating rate 26.7 degrees C/min). The coating shows good adhesion with substrate and it can prevent Cr poisoning on SOFC cathode. While the cell with uncoated and pre-oxidized T441 interconnects degrade rapidly. XRD results show the coating peaks shifted from mainly Co3O4 with some little Mn before test to MnCO2O4 after test due to Mn diffusion from substrate. No Cr penetrated to the coating layer, as further proved by EDX linescan. The effect of laves phase on the Cr2O3 sub-layer formation and coating thickness was further discussed. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Wu, Junwei; Liu, Xingbo] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA. [Wu, Junwei; Gemmen, Randall S.; Manivannan, Ayyakkannu; Liu, Xingbo] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. RP Liu, XB (reprint author), W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA. EM xingbo.liu@mail.wvu.edu RI Manivannan, Ayyakkannu/A-2227-2012 OI Manivannan, Ayyakkannu/0000-0003-0676-7918 NR 20 TC 25 Z9 26 U1 2 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 APR PY 2011 VL 36 IS 7 SI SI BP 4525 EP 4529 DI 10.1016/j.ijhydene.2010.04.115 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000034 ER PT J AU Choi, JP Weil, KS Chou, YM Stevenson, JW Yang, ZG AF Choi, Jung Pyung Weil, K. Scott Chou, Y. Matt Stevenson, Jeffry W. Yang, Z. Gary TI Development of MnCoO coating with new aluminizing process for planar SOFC stacks SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE SOFC; High temperature; mnCo; Aluminizing; Cr volatility ID FERRITIC STAINLESS-STEEL; OXIDE FUEL-CELLS; SPINEL PROTECTION LAYERS; INTERCONNECT APPLICATIONS; CATHODE; ALLOY; DEGRADATION; COMPATIBILITY; PERFORMANCE; SEPARATOR AB Chromia-forming ferritic stainless steels find widespread use as interconnect materials in SOFCs at operating temperatures below 800 degrees C, because of their thermal expansion match and low cost. However, volatile Cr-containing species originating from this scale can poison the cathode material in the cells and subsequently cause power degradation in the devices. To prevent this, a conductive manganese cobaltite spinel coating has been developed, but unfortunately; this coating is not compatible with glass-based seals between the interconnect or cell frame components and the ceramic cell due to reactions between the coating and the glass. Thus, a new aluminizing process has been developed to improve the stability of the sealing regions of these components, as well as for other metallic stack and balance-of-plant components. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Choi, Jung Pyung; Weil, K. Scott; Chou, Y. Matt; Stevenson, Jeffry W.; Yang, Z. Gary] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Choi, JP (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM jungpyung.choi@pnl.gov NR 29 TC 28 Z9 28 U1 1 U2 27 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4549 EP 4556 DI 10.1016/j.ijhydene.2010.04.110 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000037 ER PT J AU Kim, JY Oh, TK Shin, Y Bonnett, J Weil, KS AF Kim, Jin Yong Oh, Tak-Keun Shin, Yongsoon Bonnett, Jeff Weil, K. Scott TI A novel non-platinum group electrocatalyst for PEM fuel cell application SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE Nanoscale tantaulum oxide; PEM catalyst; Oxygen reduction ID OXYGEN REDUCTION REACTION; CATALYSTS; ACID; STABILITY; ELECTRODE; CATHODE; FILMS AB Precious-metal catalysts (predominantly Pt or Pt-based alloys supported on carbon) have traditionally been used to catalyze the electrode reactions in polymer electrolyte membrane (PEM) fuel cells. However as PEM fuel systems begin to approach commercial reality, there is an impending need to replace Pt with a lower cost alternative. The present study investigates the performance of a carbon-supported tantalum oxide material as a potential oxygen reduction reaction (ORR) catalyst for use on the cathode side of the PEM fuel cell membrane electrode assembly. Although bulk tantalum oxide tends to exhibit poor electrochemical performance due to limited electrical conductivity, it displays a high oxygen reduction potential; one that is comparable to Pt. Analysis of the Pourbaix electrochemical equilibrium database also indicates that tantalum oxide (Ta2O5) is chemically stable under the pH and applied potential conditions to which the cathode catalyst is typically exposed during stack operation. Nanoscale tantalum oxide catalysts were fabricated using two approaches, by reactive oxidation sputtering and by direct chemical synthesis, each carried out on a carbon support material. Nanoscale tantalum oxide particles measuring approximately 6 nm in size that were sputtered onto carbon paper exhibited a mass-specific current density as high as one-third that of Pt when measured at 0.6 V vs. NHE. However, because of the two-dimensional nature of this particle-on-paper structure, which limits the overall length of the triple-phase boundary junctions where the oxide, carbon paper, and aqueous electrolyte meet, the corresponding area-specific current density was quite low. The second synthesis approach yielded a more extended, three-dimensional structure via chemical deposition of nanoscale tantalum oxide particles on carbon powder. These catalysts exhibited a high ORR onset potential, comparable to that of Pt, and displayed a significant improvement in the area-specific current density. Overall, the highest mass-specific current density of the carbon-powder supported catalyst was 9% of that of Pt. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Kim, Jin Yong; Oh, Tak-Keun; Shin, Yongsoon; Bonnett, Jeff; Weil, K. Scott] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Kim, JY (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM jin.kim@pnl.gov NR 21 TC 38 Z9 39 U1 5 U2 45 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4557 EP 4564 DI 10.1016/j.ijhydene.2010.05.016 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000038 ER PT J AU Newkirk, JW Hsu, JH Brow, RK Lillo, T AF Newkirk, Joseph W. Hsu, JenHsien Brow, Richard K. Lillo, Thomas TI Chromium-free nickel alloys for hot sulfuric and sulfur environments SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE Ni-Si-Nb; G-phase (Ni16Si7Nb6); Corrosion; Cold rolling ID ELEMENTS AB There are few adequate materials available for severe corrosion conditions, like those of the S-I thermochemical cycle. High Si, Ni-alloys have excellent corrosion resistance, especially in mineral acids, but have typically been limited by poor mechanical properties or difficult fabrication issues. The ductility of nickel silicide, Ni3Si, can be improved through a combination of micro- and macro-alloying. Nb and other minor alloying elements yield a cast alloy with excellent corrosion resistance to sulfuric acid and good mechanical properties. In this paper, efforts to optimize the alloys performance are presented along with progress toward the development of a wrought version of the material. It was found that an appropriate heat treatment provides the largest improvement in the cast Ni-Si alloy microstructure. Trials have resulted in more than a 50% reduction by the cold rolling process. This process not only increases homogenization but also results in a more uniform distribution of G-phase particles, which is beneficial for the improvements in ductility and corrosion resistance. These alloys have great potential for use in future hydrogen production as well as fossil energy combustion. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Newkirk, Joseph W.; Hsu, JenHsien; Brow, Richard K.] Missouri Univ Sci & Technol, Rolla, MO 65409 USA. [Lillo, Thomas] Idaho Natl Lab, Idaho Falls, ID USA. RP Newkirk, JW (reprint author), Missouri Univ Sci & Technol, 223 McNutt Hall, Rolla, MO 65409 USA. EM jnewkirk@mst.edu RI Lilllo, Thomas/S-5031-2016 OI Lilllo, Thomas/0000-0002-7572-7883 NR 11 TC 2 Z9 2 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4588 EP 4594 DI 10.1016/j.ijhydene.2010.06.007 PG 7 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000042 ER PT J AU Nakano, J Sridhar, S Bennett, J Kwong, KS Moss, T AF Nakano, Jinichiro Sridhar, Seetharaman Bennett, James Kwong, Kyei-Sing Moss, Tyler TI Interactions of refractory materials with molten gasifier slags SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 4th Symposium on Materials in Clean Power Systems/ 138th Annual Meeting and Exposition of TMS CY FEB 15-19, 2009 CL San Francisco, CA DE Integrated gasification combined cycle (IGCC); Coal; Petcoke; Al2O3; Cr2O3; Vanadium oxide; Slag; Refractory ID PETROLEUM COKE; VANADIUM; SYSTEM; ASH AB The current study focuses on the analysis of sessile-drop interfacial reactions between two synthetic slags (based on average ash chemistries of coal and petcoke feedstock) and two refractory materials (90 wt% Cr2O3-10 wt% Al2O3 and 100 wt% Al2O3), using a Confocal Scanning Laser Microscope (CSLM). Ground slag samples (less than 325 mesh) were placed at specific microstructure locations on refractory substrates and heated to 1500 degrees C in an atmosphere of CO/CO2 gas mixture (volume ratio = 1.8), using a gold-image heating chamber. Cross-sections of the slag/refractory interface indicated unique slag penetration into preferred areas of the refractory and grain dissolution into the slag which promoted spalling of the refractory. Initially, the slag attacked both grain boundaries and fine microstructure areas, freeing alumina grains into the slag. The formation of VOx-based crystalline material in the petcoke slag was found to alter the liquid composition. Chemical spalling of Cr-containing crystal layer also facilitated degradation of the refractory. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Nakano, Jinichiro; Bennett, James; Kwong, Kyei-Sing] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA. [Sridhar, Seetharaman] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Nakano, Jinichiro; Sridhar, Seetharaman; Moss, Tyler] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. RP Nakano, J (reprint author), US DOE, Natl Energy Technol Lab, 1450 Queen Ave, Albany, OR 97321 USA. EM jinichiro.nakano@netl.doe.gov NR 17 TC 19 Z9 23 U1 2 U2 21 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 EI 1879-3487 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD APR PY 2011 VL 36 IS 7 SI SI BP 4595 EP 4604 DI 10.1016/j.ijhydene.2010.04.117 PG 10 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 748MF UT WOS:000289394000043 ER PT J AU Donath, MJ Dominguez, MA Withers, ST AF Donath, Michael J., II Dominguez, Miguel A. Withers, Sydnor T., III TI Development of an Automated Platform for High-Throughput P1-Phage Transduction of Escherichia coli SO JALA LA English DT Article DE transduction; synthetic biology; PI phage; Keio collection ID MICROBIAL-PRODUCTION AB Synthetic biology depends on the ability to rapidly produce strains with improved phenotypes but is limited by the ability to rapidly produce strain collections with directed mutations. Here, we present a system capable of overcoming this limitation through automated PI-phage transductions of Escherichia coli. By combining the Keio collection of single-gene deletion E. coli mutants with PI-phage, it is possible to generate an engineered host-strain collection consisting of every possible gene deletion mutant. This strategy was tested by transducing 355 genetic markers from the Keio collection into five different host strains, and it achieved a 98% success rate. This method offers an improved mechanism for rapidly engineering collections of microbes and provides one method for rapidly deploying a broader synthetic biology effort. (JALA 2011;16:141-7) C1 [Donath, Michael J., II; Dominguez, Miguel A.; Withers, Sydnor T., III] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. RP Withers, ST (reprint author), Univ Wisconsin, Great Lakes Bioenergy Res Ctr, 1550 Linden Dr, Madison, WI 53706 USA. EM sydwithers@gmail.com FU DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science) [DE-FC02-07ER64494] FX The authors would like to thank David Keating and Mary Tremaine for providing strain MT203. The list of Keio collection clones used in this study was suggested by Jennifer Reed and Joonhoon Kim. This work was funded by the DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science DE-FC02-07ER64494). NR 15 TC 3 Z9 4 U1 6 U2 9 PU SAGE PUBLICATIONS INC PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA SN 2211-0682 EI 1540-2452 J9 JALA-J LAB AUTOM JI JALA PD APR PY 2011 VL 16 IS 2 BP 141 EP 147 DI 10.1016/j.jala.2010.08.005 PG 7 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 751JP UT WOS:000289613700006 PM 21609695 ER PT J AU Glasner, JD Yang, CH Reverchon, S Hugouvieux-Cotte-Pattat, N Condemine, G Bohin, JP Van Gijsegem, F Yang, SH Franza, T Expert, D Plunkett, G Francisco, MJS Charkowski, AO Py, B Bell, K Rauscher, L Rodriguez-Palenzuela, P Toussaint, A Holeva, MC He, SY Douet, V Boccara, M Blanco, C Toth, I Anderson, BD Biehl, BS Mau, B Flynn, SM Barras, F Lindeberg, M Birch, PRJ Tsuyumu, S Shi, XY Hibbing, M Yap, MN Carpentier, M Dassa, E Umehara, M Kim, JF Rusch, M Soni, P Mayhew, GF Fouts, DE Gill, SR Blattner, FR Keen, NT Perna, NT AF Glasner, Jeremy D. Yang, Ching-Hong Reverchon, Sylvie Hugouvieux-Cotte-Pattat, Nicole Condemine, Guy Bohin, Jean-Pierre Van Gijsegem, Frederique Yang, Shihui Franza, Thierry Expert, Dominique Plunkett, Guy, III Francisco, Michael J. San Charkowski, Amy O. Py, Beatrice Bell, Kenneth Rauscher, Lise Rodriguez-Palenzuela, Pablo Toussaint, Ariane Holeva, Maria C. He, Sheng Yang Douet, Vanessa Boccara, Martine Blanco, Carlos Toth, Ian Anderson, Bradley D. Biehl, Bryan S. Mau, Bob Flynn, Sarah M. Barras, Frederic Lindeberg, Magdalen Birch, Paul R. J. Tsuyumu, Shinji Shi, Xiangyang Hibbing, Michael Yap, Mee-Ngan Carpentier, Mathilde Dassa, Elie Umehara, Masahiro Kim, Jihyun F. Rusch, Michael Soni, Pritin Mayhew, George F. Fouts, Derrick E. Gill, Steven R. Blattner, Frederick R. Keen, Noel T. Perna, Nicole T. TI Genome Sequence of the Plant-Pathogenic Bacterium Dickeya dadantii 3937 SO JOURNAL OF BACTERIOLOGY LA English DT Article ID CHRYSANTHEMI; RFAM AB Dickeya dadantii is a plant-pathogenic enterobacterium responsible for the soft rot disease of many plants of economic importance. We present here the sequence of strain 3937, a strain widely used as a model system for research on the molecular biology and pathogenicity of this group of bacteria. C1 [Yang, Ching-Hong; Yang, Shihui] Univ Wisconsin, Dept Biol Sci, Milwaukee, WI 53211 USA. [Reverchon, Sylvie; Hugouvieux-Cotte-Pattat, Nicole; Condemine, Guy] INSA, F-69621 Villeurbanne, France. [Reverchon, Sylvie; Hugouvieux-Cotte-Pattat, Nicole; Condemine, Guy] Univ Lyon 1, CNRS, UMR 5240, F-69622 Villeurbanne, France. [Bohin, Jean-Pierre] USTL, CNRS, UMR 8576, F-59655 Villeneuve Dascq, France. [Van Gijsegem, Frederique; Franza, Thierry; Expert, Dominique; Rauscher, Lise] UPMC, INA PG, INRA, Lab Interact Plantes Pathogenes,UMR 217, F-75005 Paris, France. [Glasner, Jeremy D.; Plunkett, Guy, III; Anderson, Bradley D.; Biehl, Bryan S.; Mau, Bob; Hibbing, Michael; Rusch, Michael; Soni, Pritin; Mayhew, George F.; Blattner, Frederick R.; Perna, Nicole T.] Univ Wisconsin, Genome Ctr, Madison, WI 53706 USA. [Francisco, Michael J. San] Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA. [Plunkett, Guy, III; Blattner, Frederick R.; Perna, Nicole T.] Univ Wisconsin, Dept Genet, Madison, WI 53706 USA. [Charkowski, Amy O.; Yap, Mee-Ngan] Univ Wisconsin, Dept Plant Pathol, Madison, WI 53706 USA. [Py, Beatrice; Douet, Vanessa; Barras, Frederic] Univ Aix Marseille 2, Lab Chim Bacterienne, CNRS, UPR9043, F-13402 Marseille 20, France. [Bell, Kenneth; Holeva, Maria C.; Toth, Ian; Flynn, Sarah M.; Birch, Paul R. J.] Scottish Crop Res Inst, Dundee DD2 5DA, Scotland. [Rodriguez-Palenzuela, Pablo; Biehl, Bryan S.] ETS Ingenieros Agronomos, UPM, Dept Biotechnol, E-28040 Madrid, Spain. [Toussaint, Ariane] Univ Libre Bruxelles, SCMBB, Brussels, Belgium. [He, Sheng Yang] Michigan State Univ, MSU DOE Plant Res Lab, E Lansing, MI 48824 USA. [Boccara, Martine; Carpentier, Mathilde] Univ Paris 06, F-75005 Paris, France. [Blanco, Carlos] Univ Rennes 1, CNRS, UMR 6026, F-35042 Rennes, France. [Lindeberg, Magdalen] Cornell Univ, Dept Plant Pathol, Ithaca, NY 14853 USA. [Tsuyumu, Shinji; Umehara, Masahiro] Shizuoka Univ, Inst Mol Biol & Biotechnol, Shizuoka 4228529, Japan. [Shi, Xiangyang; Keen, Noel T.] Univ Calif Riverside, Dept Plant Pathol, Riverside, CA 92521 USA. [Dassa, Elie] Inst Pasteur, Dept Microbiol Fondamentale & Med, Unite Membranes Bacteriennes, CNRS,URA 2172, F-75724 Paris 15, France. [Kim, Jihyun F.] Korea Res Inst Biosci & Biotechnol, Taejon, South Korea. [Fouts, Derrick E.; Gill, Steven R.] Inst Genom Res, Rockville, MD 20850 USA. RP Perna, NT (reprint author), Univ Wisconsin, Dept Genet, 425 Henry Mall, Madison, WI 53706 USA. EM ntperna@wisc.edu RI RODRIGUEZ-PALENZUELA, PABLO/A-9149-2012; YANG, SHIHUI/A-6526-2008; Birch, Paul/F-7681-2012; Kim, Jihyun/B-6286-2013; Mayhew, George/B-4042-2016; Sylvie, Reverchon/P-7932-2016; OI RODRIGUEZ-PALENZUELA, PABLO/0000-0002-4963-9177; YANG, SHIHUI/0000-0002-9394-9148; Kim, Jihyun/0000-0001-7715-6992; Mayhew, George/0000-0003-0609-6018; Sylvie, Reverchon/0000-0002-0478-3474; Birch, Paul/0000-0002-6559-3746 FU USDA Cooperative State Research, Education and Extension Service [2001-52100-11316] FX The project was supported by the Initiative for Future Agriculture and Food Systems Program of the USDA Cooperative State Research, Education and Extension Service (grant number 2001-52100-11316 to N.T.P., F.R.B., and N.T.K.). NR 11 TC 43 Z9 120 U1 0 U2 21 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 APR PY 2011 VL 193 IS 8 BP 2076 EP 2077 DI 10.1128/JB.01513-10 PG 2 WC Microbiology SC Microbiology GA 746GA UT WOS:000289229900039 PM 21217001 ER PT J AU Brown, SD Gilmour, CC Kucken, AM Wall, JD Elias, DA Brandt, CC Podar, M Chertkov, O Held, B Bruce, DC Detter, JC Tapia, R Han, CS Goodwin, LA Cheng, JF Pitluck, S Woyke, T Mikhailova, N Ivanova, NN Han, J Lucas, S Lapidus, AL Land, ML Hauser, LJ Palumbo, AV AF Brown, Steven D. Gilmour, Cynthia C. Kucken, Amy M. Wall, Judy D. Elias, Dwayne A. Brandt, Craig C. Podar, Mircea Chertkov, Olga Held, Brittany Bruce, David C. Detter, John C. Tapia, Roxanne Han, Cliff S. Goodwin, Lynne A. Cheng, Jan-Fang Pitluck, Samuel Woyke, Tanja Mikhailova, Natalia Ivanova, Natalia N. Han, James Lucas, Susan Lapidus, Alla L. Land, Miriam L. Hauser, Loren J. Palumbo, Anthony V. TI Genome Sequence of the Mercury-Methylating Strain Desulfovibrio desulfuricans ND132 SO JOURNAL OF BACTERIOLOGY LA English DT Article ID ESTUARINE SEDIMENT; REDUCING BACTERIA; METHYLMERCURY; HEALTH AB Desulfovibrio desulfuricans strain ND132 is an anaerobic sulfate-reducing bacterium (SRB) capable of producing methylmercury (MeHg), a potent human neurotoxin. The mechanism of methylation by this and other organisms is unknown. We present the 3.8-Mb genome sequence to provide further insight into microbial mercury methylation. C1 [Brown, Steven D.; Elias, Dwayne A.; Brandt, Craig C.; Podar, Mircea; Land, Miriam L.; Hauser, Loren J.; Palumbo, Anthony V.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Gilmour, Cynthia C.] Smithsonian Environm Res Ctr, Edgewater, MD 21037 USA. [Kucken, Amy M.; Wall, Judy D.] Univ Missouri, Dept Biochem, Columbia, MO 65211 USA. [Chertkov, Olga; Held, Brittany; Bruce, David C.; Detter, John C.; Tapia, Roxanne; Han, Cliff S.; Goodwin, Lynne A.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. [Chertkov, Olga; Held, Brittany; Bruce, David C.; Detter, John C.; Tapia, Roxanne; Han, Cliff S.; Goodwin, Lynne A.; Cheng, Jan-Fang; Pitluck, Samuel; Woyke, Tanja; Mikhailova, Natalia; Ivanova, Natalia N.; Han, James; Lucas, Susan; Lapidus, Alla L.; Land, Miriam L.; Hauser, Loren J.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA. [Cheng, Jan-Fang; Pitluck, Samuel; Woyke, Tanja; Mikhailova, Natalia; Ivanova, Natalia N.; Han, James; Lapidus, Alla L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA. [Lucas, Susan] Lawrence Livermore Natl Lab, Genom Div, Livermore, CA 94550 USA. RP Brown, SD (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. EM brownsd@ornl.gov RI Palumbo, Anthony/A-4764-2011; Gilmour, Cynthia/G-1784-2010; Elias, Dwayne/B-5190-2011; Hauser, Loren/H-3881-2012; Lapidus, Alla/I-4348-2013; Land, Miriam/A-6200-2011; Brown, Steven/A-6792-2011; OI Palumbo, Anthony/0000-0002-1102-3975; Gilmour, Cynthia/0000-0002-1720-9498; Elias, Dwayne/0000-0002-4469-6391; Lapidus, Alla/0000-0003-0427-8731; Land, Miriam/0000-0001-7102-0031; Brown, Steven/0000-0002-9281-3898; Podar, Mircea/0000-0003-2776-0205 FU Office of Biological and Environmental Research (OBER), Office of Science, U.S. Department of Energy (DOE); Oak Ridge National Laboratory [DE-FG02-073464396]; U.S. Department of Energy [DE-AC05-00OR22725]; Office of Science of the U.S. Department of Energy [AC02-05CH11231] FX This research was supported by the Office of Biological and Environmental Research (OBER), Office of Science, U.S. Department of Energy (DOE), as part of the Mercury Science Focus Area Program at Oak Ridge National Laboratory and grant DE-FG02-073464396 (J.D.W.). Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. The work conducted by the U.S. Department of Energy Joint Genome Institute is supported by the Office of Science of the U.S. Department of Energy under contract no. DE-AC02-05CH11231. NR 15 TC 19 Z9 21 U1 1 U2 17 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0021-9193 EI 1098-5530 J9 J BACTERIOL JI J. Bacteriol. PD APR PY 2011 VL 193 IS 8 BP 2078 EP 2079 DI 10.1128/JB.00170-11 PG 2 WC Microbiology SC Microbiology GA 746GA UT WOS:000289229900040 PM 21357488 ER PT J AU Miller, MB Chen, DL Luebke, DR Johnson, JK Enick, RM AF Miller, Matthew B. Chen, De-Li Luebke, David R. Johnson, J. Karl Enick, Robert M. TI Critical Assessment of CO2 Solubility in Volatile Solvents at 298.15 K SO JOURNAL OF CHEMICAL AND ENGINEERING DATA LA English DT Article ID VAPOR-LIQUID-EQUILIBRIUM; ACTIVITY-COEFFICIENT MODEL; X-Y DIAGRAMS; CARBON-DIOXIDE; COSMO-RS; BINARY-MIXTURES; PHASE-EQUILIBRIA; IONIC LIQUIDS; BASIS-SETS; PREDICTION AB Fifteen different low molar mass compounds are assessed as CO2 solvents based on bubble-point loci on the solvent-rich end (0.6 to 1.0 solvent wt fraction) of the CO2-solvent pressure-composition diagram at 298.15 K. Four of the five best solvents (in descending order of solvent strength on a mass fraction CO2 dissolved basis), acetone, methyl acetate, 1,4-dioxane, and 2-methoxyethyl acetate, are oxygen-rich, low molar mass species possessing one or more oxygen atoms in carbonyl, ether, and/or acetate groups that can interact favorably with CO2 via Lewis acid/Lewis base interactions. Methanol, a very low molar mass solvent, is comparable to 1,4-dioxane in solvent strength. The remaining solvents, in descending order of solvent strength on a mass basis, include 2-nitropropane, N,N-dimethylacetamide, acetylacetone, 1-nitropropane, iso-octane, 2-(2-butoxyethoxy)ethyl acetate, N-formylmorpholine, propylene carbonate, 2-butoxyethyl acetate, and N-tert-butylformamide. When compared on a molar basis, each of the six best CO2 solvents, 2-(2-butoxyethoxy)ethyl acetate, methyl acetate, 2-methoxyethyl acetate, 1,4-dioxane, acetone, and acetyl acetone, is rich in CO2-philic ether or carbonyl oxygen atoms. Methanol, which possesses a CO2-phobic hydroxyl group, is the worst CO2 solvent. COSMOtherm accurately predicted the relative solvent strengths of eight of the solvents that contain carbonyl, acetate, ether, and carbonate groups. However, COSMOtherm was not able to predict the correct ordering of solvents possessing hydroxyl, nitro-, amide, secondary amine, and tertiary amine groups. This important failure of the COSMOtherm approach for these molecules is apparently due to problems with the COSMO-RS parametrization. C1 [Miller, Matthew B.; Luebke, David R.; Johnson, J. Karl; Enick, Robert M.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Miller, Matthew B.; Chen, De-Li; Johnson, J. Karl; Enick, Robert M.] Univ Pittsburgh, Dept Chem Engn, Pittsburgh, PA 15261 USA. RP Miller, MB (reprint author), Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM monophots@gmail.com RI Chen, De-Li/H-6867-2012; Johnson, Karl/E-9733-2013 OI Johnson, Karl/0000-0002-3608-8003 FU National Energy Technology Laboratory; RDS [DE-AC26-04NT41817] FX The authors would like to thank the National Energy Technology Laboratory for its support and ongoing research in the area of carbon management under the RDS contract DE-AC26-04NT41817. NR 55 TC 11 Z9 12 U1 2 U2 43 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0021-9568 J9 J CHEM ENG DATA JI J. Chem. Eng. Data PD APR PY 2011 VL 56 IS 4 BP 1565 EP 1572 DI 10.1021/je101161d PG 8 WC Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Chemistry; Engineering GA 748PQ UT WOS:000289403300115 ER PT J AU Flesher, ND Chang, FK Janapala, NR Starbuck, JM AF Flesher, Nathan D. Chang, Fu-Kuo Janapala, Nageswara R. Starbuck, J. Michael TI A dynamic crash model for energy absorption in braided composite materials - Part II: Implementation and verification SO JOURNAL OF COMPOSITE MATERIALS LA English DT Article DE carbon fiber; matrix cracking; stress concentration; energy absorption; viscoplasticity ID TUBES; FIBER; CAPACITY; STRAIN AB A dynamic crash model is developed and implemented to model the failure behavior and energy absorption of braided composite structures. Part I describes the development and theoretical foundation of a viscoplastic material model that captures the rate-dependent behavior present in braided composite materials. Part II presents the implementation of the model into a finite element model program and the experimental results for tubes crushed from quasi-static to 4000 mm/s rates used to verify the model. Energy absorption decreases sharply with an increase in crush rate, which is reflected in this model. Design concepts are also introduced to increase energy absorption in braided composites. C1 [Flesher, Nathan D.; Chang, Fu-Kuo; Janapala, Nageswara R.] Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USA. [Starbuck, J. Michael] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Chang, FK (reprint author), Stanford Univ, Dept Aeronaut & Astronaut, Durand Bldg,Rm 250,496 Lomita Mall, Stanford, CA 94305 USA. EM fkchang@stanford.edu RI Starbuck, James/E-1442-2017 OI Starbuck, James/0000-0002-3814-9156 NR 23 TC 5 Z9 5 U1 0 U2 14 PU SAGE PUBLICATIONS LTD PI LONDON PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND SN 0021-9983 EI 1530-793X J9 J COMPOS MATER JI J. Compos Mater. PD APR PY 2011 VL 45 IS 8 BP 867 EP 882 DI 10.1177/0021998311398386 PG 16 WC Materials Science, Composites SC Materials Science GA 748UI UT WOS:000289417700002 ER PT J AU Eagleman, YD Bourret-Courchesne, E Derenzo, SE AF Eagleman, Yetta D. Bourret-Courchesne, Edith Derenzo, Stephen E. TI Room-temperature scintillation properties of cerium-doped REOX (RE=Y, La, Gd, and Lu; X=F, Cl, Br, and I) SO JOURNAL OF LUMINESCENCE LA English DT Article DE Scintillator; Cerium; Oxyhalides; Luminescence ID INORGANIC SCINTILLATORS; CRYSTAL-STRUCTURE; LUMINESCENCE; SPECTROSCOPY; PRINCIPLES; PHOSPHORS; SYSTEMS; CE AB The scintillation properties of cerium-doped oxyhalides following the general formula REOX (RE=Y, La, Gd, and Lu; X = F, Cl, Br, and I) are reported. These materials were synthesized under dry conditions as microcrystalline powders from conventional solid state reactions. The room temperature X-ray excited emission and scintillation decay curves were measured and analyzed for each material. Additionally, the hygroscopic nature of the oxychlorides and oxybromides was compared to that of their corresponding rare earth halides. The yttrium, lanthanum, and gadolinium oxychlorides, and all of the oxybromides and oxyiodides are found to be activated by Ce3+. GdOBr doped with 0.5% Ce3+ has the highest light output with a relative luminosity of about one-half that of LaBr3: Ce3+. It displays a single exponential decay of 30 ns. Published by Elsevier B.V. C1 [Eagleman, Yetta D.; Bourret-Courchesne, Edith; Derenzo, Stephen E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Eagleman, YD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM ydeagleman@lbl.gov FU US Department of Homeland Security; Lawrence Berkeley National Laboratory under US Department of Energy [DE-AC02-05CH11231] FX The authors would like to thank Marvin Weber for his invaluable input in the writing of this manuscript and all the members of the Department of Radiotracer Development and Imaging Technology at LBNL. In addition, we want to thank Matthias Klintenberg for his suggestions to investigate several of these materials. This work was supported by the US Department of Homeland Security and was carried out at the Lawrence Berkeley National Laboratory under US Department of Energy Contract no. DE-AC02-05CH11231. NR 37 TC 12 Z9 14 U1 3 U2 43 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-2313 J9 J LUMIN JI J. Lumines. PD APR PY 2011 VL 131 IS 4 BP 669 EP 675 DI 10.1016/j.jlumin.2010.11.013 PG 7 WC Optics SC Optics GA 747NF UT WOS:000289326000022 ER PT J AU Bahl, G Salvia, JC Melamud, R Kim, B Howe, RT Kenny, TW AF Bahl, Gaurav Salvia, James C. Melamud, Renata Kim, Bongsang Howe, Roger T. Kenny, Thomas W. TI AC Polarization for Charge-Drift Elimination in Resonant Electrostatic MEMS and Oscillators SO JOURNAL OF MICROELECTROMECHANICAL SYSTEMS LA English DT Article DE AC biasing; charging; dielectrics; drift; frequency stability; oscillators; resonators ID FREQUENCY AB This paper proposes the use of ac polarization for resonant electrostatic microelectromechanical systems that eliminates the frequency drift caused by dielectric charging and charge screening. It is mathematically and experimentally shown that an ac-polarized resonator can sustain stable oscillations when used in a positive feedback oscillator circuit. We also demonstrate an oscillator topology that generates a drift-free reference frequency tone with this technique in spite of using a resonator that exhibits large frequency drifts under dc polarization. Long-term data are presented for these drift-susceptible devices, showing a significant improvement in frequency stability. [2010-0104] C1 [Bahl, Gaurav] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA. [Salvia, James C.; Melamud, Renata] SiTime Corp, Sunnyvale, CA 94085 USA. [Kim, Bongsang] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Howe, Roger T.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA. [Kenny, Thomas W.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA. RP Bahl, G (reprint author), Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA. EM bahlg@umich.edu; jsalvia@stanford.edu; rmelamud@gmail.com; bongsang@gmail.com; rthowe@stanford.edu; tkenny@stanford.edu RI Mischo, William/I-1684-2013; Bahl, Gaurav/A-5044-2014 OI Mischo, William/0000-0003-4234-9836; Bahl, Gaurav/0000-0001-7801-2739 FU Defense Advanced Research Projects Agency (DARPA) [HR0011-06-0049]; Bosch; Epson; HP; Agilent; Boeing; Qualcomm; DARPA Harsh Environment Robust Micro-mechanical Technology [ONR N66001-03-1-8942]; National Science Foundation [ECS-9731294, DMR 9504099]; Stanford Graduate Fellowship FX This work was supported in part by the Defense Advanced Research Projects Agency (DARPA) under Grant HR0011-06-0049 (Dr. D. L. Polla, Program Manager), by Bosch, by Epson, by HP, by Agilent, by Boeing, by Qualcomm, by the DARPA Harsh Environment Robust Micro-mechanical Technology under Grant ONR N66001-03-1-8942, by the National Nanofabrication Users Network facilities funded by the National Science Foundation under Award ECS-9731294, and by the National Science Foundation Instrumentation for Materials Research Program under Grant DMR 9504099. The work of J. C. Salvia was supported in part by a National Science Foundation Graduate Fellowship. The work of R. Melamud was supported in part by a Stanford Graduate Fellowship. Subject Editor C. Hierold. NR 21 TC 7 Z9 7 U1 1 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1057-7157 J9 J MICROELECTROMECH S JI J. Microelectromech. Syst. PD APR PY 2011 VL 20 IS 2 BP 355 EP 364 DI 10.1109/JMEMS.2010.2100027 PG 10 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Instruments & Instrumentation; Physics, Applied SC Engineering; Science & Technology - Other Topics; Instruments & Instrumentation; Physics GA 745XR UT WOS:000289205400002 ER PT J AU Agarwal, G Isacoff, E AF Agarwal, Gautam Isacoff, Ehud TI Specializations of a pheromonal glomerulus in the Drosophila olfactory system SO JOURNAL OF NEUROPHYSIOLOGY LA English DT Article DE antennal lobe; functional imaging; odor localization; winner-take-all network ID MOTH MANDUCA-SEXTA; ANTENNAL LOBE; MORPHOLOGICAL CHARACTERIZATION; LOCAL INTERNEURONS; SENSITIVE NEURONS; RECEPTIVE-FIELDS; NEURAL ACTIVITY; GAIN-CONTROL; MELANOGASTER; INHIBITION AB Agarwal G, Isacoff E. Specializations of a pheromonal glomerulus in the Drosophila olfactory system. J Neurophysiol 105: 1711-1721, 2011. First published February 2, 2011; doi:10.1152/jn.00591.2010.-Insect pheromonal glomeruli are thought to track the fine spatiotemporal features of one or a few odorants to aid conspecific localization. However, it is not clear whether they function differently from generalist glomeruli, which respond to many odorants. In this study, we test how DA1, a model pheromonal glomerulus in the fruit fly, represents the spatial and temporal properties of its input, compared with other glomeruli. We combine calcium imaging and electrical stimulation in an isolated brain preparation for a simultaneous, unbiased comparison of the functional organization of many glomeruli. In contrast to what is found in other glomeruli, we find that ipsilateral and contralateral stimuli elicit distinct spatial patterns of activity within DA1. DA1's output shows a greater preference for ipsilateral stimuli in males than in females. DA1 experiences greater and more rapid inhibition than other glomeruli, allowing it to report slight interantennal delays in stimulus onset in a "winner-take-all" manner. DA1's ability to encode spatiotemporal input features distinguishes it from other glomeruli in the fruit fly antennal lobe but relates it to pheromonal glomeruli in other insect species. We propose that DA1 is specialized to help the fly localize and orient with respect to pheromone sources. C1 [Agarwal, Gautam; Isacoff, Ehud] Univ Calif Berkeley, Neurosci Grad Program, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. [Isacoff, Ehud] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Isacoff, Ehud] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Isacoff, Ehud] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Isacoff, E (reprint author), Univ Calif Berkeley, Neurosci Grad Program, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. EM ehud@berkeley.edu OI Agarwal, Gautam/0000-0001-7300-7586 FU Howard Hughes Medical Institute; National Science Foundation [FIBR 7H-1081892] FX This work was supported by a Howard Hughes Medical Institute Predoctoral Fellowship (to G. Agarwal) and the National Science Foundation (FIBR 7H-1081892). NR 55 TC 6 Z9 6 U1 0 U2 2 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-3077 EI 1522-1598 J9 J NEUROPHYSIOL JI J. Neurophysiol. PD APR PY 2011 VL 105 IS 4 BP 1711 EP 1721 DI 10.1152/jn.00591.2010 PG 11 WC Neurosciences; Physiology SC Neurosciences & Neurology; Physiology GA 751LW UT WOS:000289620500026 PM 21289134 ER PT J AU Hunt, SW Yang, L Wang, XP Richmond, MG AF Hunt, Sean W. Yang, Li Wang, Xiaoping Richmond, Michael G. TI New osmium cluster compounds containing the heterocyclic ligand 2,3-bis-(diphenylphosphino)quinoxaline (dppq): Ligand isomerization and crystal structures of dppq, the isomeric clusters Os-3(CO)(10)(dppq), and HOs3(CO)(9)[mu-2,3-PhP(eta(1)-C6H4)(Ph2P)quinoxaline] SO JOURNAL OF ORGANOMETALLIC CHEMISTRY LA English DT Article DE Osmium clusters; Diphosphine isomerization; P-C bond activation; Crystallography; Redox properties ID X-RAY STRUCTURES; PARAMAGNETIC ORGANOMETALLIC MOLECULES; P-C BOND; TRIOSMIUM CLUSTER; DIPHOSPHINE ISOMERIZATION; CHELATING ISOMERS; TRIANGULAR CLUSTER; CARBONYL HYDRIDES; PHOSPHINE LIGAND; ORTHO-METALATION AB Treatment of the labile cluster 1,2-Os-3(CO)(10)(MeCN)(2) (1) with the diphosphine ligand 2,3-bis(diphenylphosphino) quinoxaline (dppq) at room temperature affords 1,2-Os-3(CO)(10)(dppq) (2b) as the kinetic product of ligand substitution in 84% yield. 2b isomerizes to the thermodynamically more stable dppq-chelated cluster 1,1-Os-3(CO)(10)(dppq) (2c) as the sole observable product under CO at temperatures below 358 K. The kinetics for the conversion of 2b -> 2c have been investigated by NMR spectroscopy in CDCl3 over the temperature range 323-353 K, and the reaction was found to exhibit a rate law that is first order in 2b. The calculated activation parameters [Delta H-not equal = 25.4(4) kcal/mol; Delta S-not equal = -3(1) eu] support an intramolecular isomerization scenario, one that involves the migration of phosphine and CO groups about the cluster polyhedron. The disposition of the dppq ligand in the isomeric Os-3(CO)(10)(dppq) clusters has been established by X-ray crystallography and P-31 NMR spectroscopy. Photolysis of 2c at 366 nm leads to CO loss and ortho metalation of one of the aryl groups on the Ph2P moiety to furnish the hydride cluster HOs3(CO)(9)[mu-PhP(eta(1)-C6H4)(Ph2P) quinoxaline] (3). The isomerization behavior exhibited by 2b follows that of related diphosphine-substituted Os-3 clusters prepared by us. (c) 2011 Elsevier B.V. All rights reserved. C1 [Hunt, Sean W.; Yang, Li; Richmond, Michael G.] Univ N Texas, Dept Chem, Denton, TX 76203 USA. [Wang, Xiaoping] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. RP Richmond, MG (reprint author), Univ N Texas, Dept Chem, Denton, TX 76203 USA. EM cobalt@unt.edu RI Wang, Xiaoping/E-8050-2012 OI Wang, Xiaoping/0000-0001-7143-8112 FU Robert A. Welch Foundation [B-1093-MGR]; U.S. Department of Energy, Office of Science [DE-AC05-00OR22725]; NSF at UNT [CHE-0840518, CHE-0741936] FX Financial support from the Robert A. Welch Foundation (Grant B-1093-MGR) is greatly appreciated, and X. Wang acknowledges support by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC05-00OR22725 managed by UT Battelle, LLC. NSF support of the NMR and computational facilities at UNT through grants CHE-0840518 and CHE-0741936 is acknowledged. We also wish to thank Prof. Michael B. Hall (TAMU) for providing us a copy of his JIMP2 program, which was used to prepare the geometry-optimized structures reported here, and Dr. David A. Hrovat (Center for Advanced Scientific Computing and Modeling, UNT) for his assistance and guidance with computational aspects for this work. NR 58 TC 7 Z9 7 U1 0 U2 4 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0022-328X J9 J ORGANOMET CHEM JI J. Organomet. Chem. PD APR 1 PY 2011 VL 696 IS 7 BP 1432 EP 1440 DI 10.1016/j.jorganchem.2011.01.019 PG 9 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA 746IA UT WOS:000289236800015 ER PT J AU Gering, KL Sazhin, SV Jamison, DK Michelbacher, CJ Liaw, BY Dubarry, M Cugnet, M AF Gering, Kevin L. Sazhin, Sergiy V. Jamison, David K. Michelbacher, Christopher J. Liaw, Bor Yann Dubarry, Matthieu Cugnet, Mikael TI Investigation of path dependence in commercial lithium-ion cells chosen for plug-in hybrid vehicle duty cycle protocols SO JOURNAL OF POWER SOURCES LA English DT Article DE Lithium-ion battery; Path dependence; Aging mechanisms; PHEV; Thermal cycling ID BATTERY PERFORMANCE; FADING MECHANISM; CAPACITY FADE; OPERATION AB There is a growing need to explore path dependence of aging processes in batteries developed for long-term usage, such as lithium-ion cells used in hybrid electric vehicle (HEV) or plug-in hybrid vehicle (PHEV) applications that may then be "retired" to be utilized in grid applications. To better understand the foremost influences on path dependence in the PHEV context, this work aims to bridge the gap between ideal laboratory test conditions and PHEV field conditions by isolating the predominant aging factors in PHEV service, which would include, for example, the nature and frequency of duty cycles, as well as the frequency and severity of thermal cycles. These factors are studied in controlled and repeatable laboratory conditions to facilitate mechanistic evaluation of aging processes. This work is a collaboration between Idaho National Laboratory (INL) and the Hawaii Natural Energy Institute (HNEI). Commercial lithium-ion cells of the Sanyo Y type (18650 configuration) are used in this work covering two initial independent studies of path dependence issues. The first study considers how the magnitude of power pulses and charging rates affect the aging rate, while the second seeks to answer whether thermal cycling has an accelerating effect on cell aging. While this work is in early stages of testing, initial data trends show that cell aging is indeed accelerated under conditions of high discharge pulse power, higher charge rates, and thermal cycling. Such information is useful in developing accurate predictive models for estimating end-of-life conditions. (C) 2010 Elsevier B.V. All rights reserved. C1 [Gering, Kevin L.; Sazhin, Sergiy V.; Jamison, David K.; Michelbacher, Christopher J.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Liaw, Bor Yann; Dubarry, Matthieu; Cugnet, Mikael] Univ Hawaii Manoa, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA. RP Gering, KL (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA. EM kevin.gering@inl.gov RI Dubarry, Matthieu/B-4333-2012 OI Dubarry, Matthieu/0000-0002-3228-1834 NR 15 TC 23 Z9 23 U1 4 U2 44 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3395 EP 3403 DI 10.1016/j.jpowsour.2010.05.058 PG 9 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000002 ER PT J AU Sazhin, SV Harrup, MK Gering, KL AF Sazhin, Sergiy V. Harrup, Mason K. Gering, Kevin L. TI Characterization of low-flammability electrolytes for lithium-ion batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE Lithium ion battery; Low-flammability electrolyte; Phosphazene; Solid electrolyte interphase AB In an effort to develop low-flammability electrolytes for a new generation of Li-ion batteries, we have evaluated physical and electrochemical properties of electrolytes with two novel phosphazene additives. We have studied performance quantities including conductivity, viscosity, flash point, and electrochemical window of electrolytes as well as formation of solid electrolyte interphase (SEI) films. In the course of study, the necessity for a simple method of SEI characterization was realized. Therefore, a new method and new criteria were developed and validated on 10 variations of electrolyte/electrode substrates. Based on the summation of determined physical and electrochemical properties of phosphazene-based electrolytes, one structure of phosphazene compound was found better than the other. This capability helps to direct our further synthetic work in phosphazene chemistry. (C) 2010 Elsevier B.V. All rights reserved. C1 [Sazhin, Sergiy V.; Harrup, Mason K.; Gering, Kevin L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Sazhin, SV (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA. EM Sergy.Sazhin@inl.gov NR 12 TC 27 Z9 28 U1 3 U2 40 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3433 EP 3438 DI 10.1016/j.jpowsour.2010.09.019 PG 6 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000007 ER PT J AU Zhang, XF Zheng, HH Battaglia, V Axelbaum, RL AF Zhang, Xiaofeng Zheng, Honghe Battaglia, Vincent Axelbaum, Richard L. TI Electrochemical performance of spinel LiMn2O4 cathode materials made by flame-assisted spray technology SO JOURNAL OF POWER SOURCES LA English DT Article DE LiMn2O4; Flame synthesis; Cathode materials; Li-ion secondary batteries ID LITHIUM BATTERIES; PYROLYSIS METHOD; ION BATTERIES; DRYING METHOD; THIN-FILMS; SOL-GEL; NANOPARTICLES; POWDERS; SECONDARY; INSERTION AB Spinel lithium manganese oxide LiMn2O4 powders were synthesized by a flame-assisted spray technology (FAST) with a precursor solution consisting of stoichiometric amounts of LiNO3 and Mn(NO3)(2)center dot 4H(2)O dissolved in methanol. The as-synthesized LiMn2O4 particles were non-agglomerated, and nanocrystalline. A small amount of Mn3O4 was detected in the as-synthesized powder due to the decomposition of spinet LiMn2O4 at the high flame temperature. The impurity phase was removed with a post-annealing heat-treatment wherein the grain size of the annealed powder was 33 nm. The charge/discharge curves of both powders matched the characteristic plateaus of spinet LiMn2O4 at 3 V and 4V vs. Li. However. the annealed powder showed a higher initial discharge capacity of 115 mAh g(-1) at 4 V. The test cell with annealed powder showed good rate capability between a voltage of 3.0 and 4.3 V and a first cycle coulombic efficiency of 96%. The low coulombic efficiency from capacity fading may be due to oxygen defects in the annealed powder. The results suggest that FAST holds potential for rapid production of uniform cathode materials with low-cost nitrate precursors and minimal energy input. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zhang, Xiaofeng; Axelbaum, Richard L.] Washington Univ, Dept Energy Environm & Chem Engn, Ctr Mat Innovat, St Louis, MO 63130 USA. [Zheng, Honghe; Battaglia, Vincent] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Energy Technol Dept, Berkeley, CA 94720 USA. RP Axelbaum, RL (reprint author), Washington Univ, Dept Energy Environm & Chem Engn, Ctr Mat Innovat, 1 Brookings Dr, St Louis, MO 63130 USA. EM axelbaum@wustl.edu FU NSF; Center for Materials Innovation at Washington University FX The authors are grateful to the assistance from Dr. Gao Liu at Lawrence Berkeley National Laboratory for battery performance test, and the NSF and the Center for Materials Innovation at Washington University for financial support. NR 42 TC 30 Z9 32 U1 2 U2 63 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3640 EP 3645 DI 10.1016/j.jpowsour.2010.07.008 PG 6 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000034 ER PT J AU Pan, AQ Choi, DW Zhang, JG Liang, SQ Cao, GZ Nie, ZM Arey, BW Liu, J AF Pan, Anqiang Choi, Daiwon Zhang, Ji-Guang Liang, Shuquan Cao, Guozhong Nie, Zimin Arey, Bruce W. Liu, Jun TI High-rate cathodes based on Li3V2(PO4)(3) nanobelts prepared via surfactant-assisted fabrication SO JOURNAL OF POWER SOURCES LA English DT Article DE Li-ion batteries; Cathode; Lithium vanadium phosphate; Nanobelt; Surfactant ID LITHIUM-ION BATTERIES; LIFEPO4; PERFORMANCE; COMPOSITE AB In this work, we have synthesized monoclinic Li3V2(PO4)(3) nanobelts via a single-step, solid-state reaction process in a molten hydrocarbon. The as-prepared Li3V2(PO4)(3) nanoparticles have a unique nanobelt shape and are similar to 50-nm thick. When cycled in a voltage range between 3.0 V and 4.3 Vat a 1C rate, these unique Li3V2(PO4)(3) nanobelts demonstrate a specific discharge capacity of 131 mAh g(-1) (which is close to the theoretical capacity of 132 mAh g(-1)) and stable cycling characteristics. (C) 2010 Elsevier B.V. All rights reserved. C1 [Pan, Anqiang; Choi, Daiwon; Zhang, Ji-Guang; Nie, Zimin; Arey, Bruce W.; Liu, Jun] Pacific NW Natl Lab, Richland, WA 99352 USA. [Pan, Anqiang; Liang, Shuquan] Cent S Univ, Dept Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China. [Cao, Guozhong] Univ Washington, Seattle, WA 98195 USA. RP Zhang, JG (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM jiguang.zhang@pnl.gov; lsq@mail.csu.edu.cn; jun.liu@pnl.gov RI Choi, Daiwon/B-6593-2008; Cao, Guozhong/E-4799-2011 FU National Nature Science Foundation of China [50774097]; Pacific Northwest National Laboratory; Office of Vehicle Technologies of the U.S. Department of Energy (DOE); Chinese Scholarship Council; DOE's Office Biological and Environmental Research FX We acknowledge support from the National Nature Science Foundation of China (No. 50774097), the Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory, and the Office of Vehicle Technologies of the U.S. Department of Energy (DOE). A. Pan appreciates the financial support provided by the Chinese Scholarship Council. The FIB-SEM analysis was performed at the Environmental Molecular Sciences Laboratory, a national scientific-user facility sponsored by the DOE's Office Biological and Environmental Research and located at PNNL. NR 17 TC 59 Z9 63 U1 7 U2 71 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3646 EP 3649 DI 10.1016/j.jpowsour.2010.12.067 PG 4 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000035 ER PT J AU Hong, JA Wang, F Wang, XL Graetz, J AF Hong, Jian Wang, Feng Wang, Xiaoliang Graetz, Jason TI LiFexMn1-xPO4: A cathode for lithium-ion batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE Cathode; Lithium manganese phosphate; Iron substitution; Nanoporous; Carbon coating ID ELECTRODE MATERIALS; PHOSPHO-OLIVINES; PERFORMANCE; LIMNPO4; LI-X(MNYFE1-Y)PO4; MN; FE AB The high redox potential of LiMnPO4, similar to 4.0 vs. (Li+/Li), and its high theoretical capacity of 170 mAh g(-1) makes it a promising candidate to replace LiCoO2 as the cathode in Li-ion batteries. However, it has attracted little attention because of its severe kinetic problems during cycling. Introducing iron into crystalline LiMnPO4 generates a solid solution of LiFexMn1-xPO4 and increases kinetics; hence, there is much interest in determining the Fe-to-Mn ratio that will optimize electrochemical performance. To this end, we synthesized a series of nanoporous LiFexMn1-xPO4 compounds (with x = 0, 0.05, 0.1, 0.15, and 0.2), using an inexpensive solid-state reaction. The electrodes were characterized using X-ray diffraction and energy-dispersive spectroscopy to examine their crystal structure and elemental distribution. Scanning-, tunneling-, and transmission-electron microscopy (viz., SEM, STEM, and TEM) were employed to characterize the micromorphology of these materials; the carbon content was analyzed by thermogravimetric analyses (TGAs). We demonstrate that the electrochemical performance of LiFexMn1-xPO4 rises continuously with increasing iron content. In situ synchrotron studies during cycling revealed a reversible structural change when lithium is inserted and extracted from the crystal structure. Further, introducing 20% iron (e.g., LiFe0.2Mn0.8FO4) resulted in a promising capacity (138 mAh g(-1) at C/10), comparable to that previously reported for nano-LiMnPO4. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hong, Jian; Graetz, Jason] Brookhaven Natl Lab, Dept Sustainable Energy Technol, Upton, NY 11973 USA. [Wang, Feng] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. [Wang, Xiaoliang] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Graetz, J (reprint author), Brookhaven Natl Lab, Dept Sustainable Energy Technol, Upton, NY 11973 USA. EM graetz@bnl.gov RI Wang, Feng/C-1443-2016 OI Wang, Feng/0000-0003-4068-9212 FU U.S. Department of Energy [DE-AC02-98CH1-886] FX The authors thank financial support from the Laboratory Directed Research and Development (LDRD) program under Contract No. DE-AC02-98CH1-886 with the U.S. Department of Energy. The contribution of beamline X7B of National Synchrotron Light Source at Brookhaven National Laboratory is gratefully acknowledged. NR 16 TC 55 Z9 60 U1 10 U2 135 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3659 EP 3663 DI 10.1016/j.jpowsour.2010.12.045 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000038 ER PT J AU Vijayakumar, M Li, LY Graff, G Liu, J Zhang, HM Yang, ZG Hu, JA AF Vijayakumar, M. Li, Liyu Graff, Gordon Liu, Jun Zhang, Huamin Yang, Zhenguo Hu, Jian Zhi TI Towards understanding the poor thermal stability of V5+ electrolyte solution in Vanadium Redox Flow Batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE O-17 and V-51 NMR; Vanadium Redox Flow Battery; Vanadium electrolytes; V2O5 precipitation ID CELL ELECTROLYTE; PRECIPITATION; PERFORMANCE; EQUILIBRIA; STORAGE; WATER; VO2+ AB The V5+ electrolyte solution from Vanadium Redox Flow Batteries was studied by variable temperature O-17 and V-51 Nuclear Magnetic Resonance (NMR) spectroscopy and density functional theory (DFT) based computational modeling. It was found that the V5+ species exist as hydrated penta co-ordinated vanadate ion, i.e. [VO2(H2O)(3)](1+). This hydrated structure is not stable at elevated temperature and change into neutral H3VO4 molecule via a deprotonation process and subsequently leading to the observed V2O5 precipitation in Vs electrolyte solutions. (C) 2010 Elsevier B.V. All rights reserved. C1 [Vijayakumar, M.; Li, Liyu; Graff, Gordon; Liu, Jun; Yang, Zhenguo] Pacific NW Natl Lab, Richland, WA 99352 USA. [Zhang, Huamin; Hu, Jian Zhi] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China. RP Yang, ZG (reprint author), Pacific NW Natl Lab, 3335 Q Ave ,MSIN K8-98, Richland, WA 99352 USA. EM Vijayakurnar.Murugesan@pnl.gov; zgary.yang@pnl.gov; Jianzhi.Hu@pnl.gov RI Murugesan, Vijayakumar/C-6643-2011; Hu, Jian Zhi/F-7126-2012 OI Murugesan, Vijayakumar/0000-0001-6149-1702; FU PNNL; Office of Electricity (OE), and the U.S. Department of Energy (DOE) [57558]; DOE; National Basic Research Program of China (973 Program) [2010CB227200] FX This work is supported by LDRD Program of the PNNL, Office of Electricity (OE), and the U.S. Department of Energy (DOE) under contract #57558. The NMR work was carried out at EMSL, a national scientific user facility sponsored by the DOE. We thank Drs. Baowei Chen, Zimin Nie, Birgit Schwenzer, and Kim Soowhan (all of PNNL) for preparing V5+ solutions and valuable suggestions. HM Zhang thanks National Basic Research Program of China (973 Program, 2010CB227200) for financial support. NR 21 TC 82 Z9 87 U1 10 U2 69 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD APR 1 PY 2011 VL 196 IS 7 SI SI BP 3669 EP 3672 DI 10.1016/j.jpowsour.2010.11.126 PG 4 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 747MV UT WOS:000289325000040 ER PT J AU Bridges, CA Sefat, AS Payzant, EA Cranswick, L Paranthaman, MP AF Bridges, C. A. Sefat, A. S. Payzant, E. A. Cranswick, L. Paranthaman, M. P. TI Structure and magnetic order in the series BixRE1-xFe0.5Mn0.5O3 (RE=La,Nd) SO JOURNAL OF SOLID STATE CHEMISTRY LA English DT Article DE Powder neutron diffraction; Crystal structure; Multiferroic; Perovskite; BixRE1-xFe0.5Mn0.5O3+delta (RE= La,Nd); Antiferromagnetic; Bond valence ID NEUTRON POWDER DIFFRACTION; GROUP-THEORETICAL ANALYSIS; EFFECTIVE IONIC-RADII; CRYSTAL-STRUCTURE; PHASE-TRANSITIONS; AMBIENT-PRESSURE; PEROVSKITES; BIFEO3; OXIDE; BIMNO3 AB The influence of Bi3+ on the structural and magnetic properties of the rare-earth-containing perovskites REFe0.5Mn0.5O3 (RE=La,Nd) was studied, and the limit of bismuth substitution was determined to be x <= 0.5 in BixRE1-xFe0.5Mn0.5O3+delta (RE=La,Nd) at ambient pressure. Crystal structures in both La and Nd series were determined to be GdFeO3-type Pnma with the exception of the Bi0.3La0.7Fe0.5Mn0.5O3 sample, which is monoclinic I2/a in the a(-)b(-)b(-) tilt scheme. The samples undergo a transition to G-type antiferromagnetic order along with a weak ferromagnetic component, mixed with cluster-glass type behavior. The substitution of bismuth into the lattice results in a drop in T-N relative to the lanthanide end-members. Long range ordering temperatures T-N in the range 240-255 K were observed, with a significantly lower ordered magnetic moment in the case of lanthanum (M similar to 1.7-1.9 mu(B)) than in the case of neodymium (M similar to 2.1 mu(B)). Published by Elsevier Inc. C1 [Bridges, C. A.; Paranthaman, M. P.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Sefat, A. S.; Payzant, E. A.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Cranswick, L.] Natl Res Council Canada, Canadian Neutron Beam Ctr, Chalk River Labs, Chalk River, ON K0J 1J0, Canada. RP Bridges, CA (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Bldg 4500 S,MS-6100,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM bridgesca@ornl.gov RI Payzant, Edward/B-5449-2009; Paranthaman, Mariappan/N-3866-2015; Sefat, Athena/R-5457-2016 OI Payzant, Edward/0000-0002-3447-2060; Paranthaman, Mariappan/0000-0003-3009-8531; Sefat, Athena/0000-0002-5596-3504 FU User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy; Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U. S. Department of Energy FX We acknowledge Ashfia Huq and Jason Hodges for collection of powder neutron diffraction data on the Bi0.1Nd0.9Fe0.5Mn0.5O3< /INF> sample at the Spallation Neutron Source. We thank Larry Walker of the High Temperature Materials Laboratory at Oak Ridge National Laboratory for collection of the microprobe data, which was collected at ORNL's SHaRE User Facility. We thank Ian Swainson of Chalk River Laboratories for a critical reading of the manuscript. Research at the SHaRE User Facility and the SNS was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. Research at ORNL was sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U. S. Department of Energy. NR 73 TC 8 Z9 10 U1 1 U2 37 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0022-4596 EI 1095-726X J9 J SOLID STATE CHEM JI J. Solid State Chem. PD APR PY 2011 VL 184 IS 4 BP 830 EP 842 DI 10.1016/j.jssc.2011.02.006 PG 13 WC Chemistry, Inorganic & Nuclear; Chemistry, Physical SC Chemistry GA 751DG UT WOS:000289597100016 ER PT J AU Innocenti, D Valletta, A Bianconi, A AF Innocenti, Davide Valletta, Antonio Bianconi, Antonio TI Shape Resonance at a Lifshitz Transition for High Temperature Superconductivity in Multiband Superconductors SO JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM LA English DT Article DE Multiband superconductivity; Bose-BCS crossover; Lifshitz transition; Shape resonance; Bipolarons ID HIGH-T-C; HIGH T(C) SUPERCONDUCTIVITY; QUANTUM STRIPES; FERMI-SURFACE; ATOMIC LIMIT; CUPRATE SUPERCONDUCTORS; PHASE-DIAGRAM; POLARON SIZE; HETEROSTRUCTURES; SUPERLATTICE AB We discuss the shape resonance in the superconducting gaps of a two-band superconductor by tuning the chemical potential at a Lifshitz transition for Fermi surface neck collapsing and for spot appearing. The high temperature superconducting scenario for complex matter shows the coexistence of a first BCS condensate made of Cooper pairs in the first band and a second boson-like condensate made of bosons like bipolarons, in the second band where the chemical potential is tuned near a Lifshitz transition. The interband coupling controls the shape resonance in the pair exchange between the two condensates. We discuss the particular BCS-Bose crossover that occurs at the shape resonance tuning the Lifshitz parameter (the energy difference between the chemical potential and the Lifshitz topological transition) like tuning the external magnetic field for the Feshbach resonances in ultracold gases. This superconducting phase provides a particular case of topological superconductivity with multiple condensates of different winding numbers. C1 [Bianconi, Antonio] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy. [Valletta, Antonio] CNR, IMM, I-00133 Rome, Italy. [Innocenti, Davide] Univ Roma Tor Vergata, Dipartimento Ingn Meccan, I-00133 Rome, Italy. [Innocenti, Davide] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Bianconi, A (reprint author), Univ Roma La Sapienza, Dept Phys, Ple Aldo Moro 2, I-00185 Rome, Italy. EM antonio.bianconi@roma1.infn.it RI innocenti, davide/H-7786-2012; Bianconi, Antonio/J-3997-2013; Valletta, Antonio/B-4170-2015 OI Bianconi, Antonio/0000-0001-9795-3913; Valletta, Antonio/0000-0002-3901-9230 FU Sapienza University FX We thank Andrea Perali, Ilya Eremin, Vladimir Kresin and Andrei Shanenko for useful discussions. We gratefully acknowledge partial financial aid from Sapienza University research grant. NR 85 TC 6 Z9 6 U1 2 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1557-1939 EI 1557-1947 J9 J SUPERCOND NOV MAGN JI J. Supercond. Nov. Magn PD APR PY 2011 VL 24 IS 3 BP 1137 EP 1143 DI 10.1007/s10948-010-1096-y PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 749SD UT WOS:000289488800005 ER PT J AU Hucker, M von Zimmermann, M Xu, ZJ Wen, JS Gu, GD Tian, W Zarestky, J Tranquada, JM AF Huecker, M. v. Zimmermann, M. Xu, Z. J. Wen, J. S. Gu, G. D. Tian, W. Zarestky, J. Tranquada, J. M. TI Zn-Doping Dependence of Stripe Order in La1.905Ba0.095CuO4 SO JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM LA English DT Article DE Stripes; Cuprates; Zn doping ID MUON-SPIN-RELAXATION; NEUTRON-SCATTERING; HOLE CONCENTRATION; SUPERCONDUCTORS; CU AB The effect of Zn-doping on the stripe order in La1.905Ba0.095CuO4 has been studied by means of x-ray and neutron diffraction as well as magnetization measurements. While 1% Zn leads to an increase of the spin stripe order, it unexpectedly causes a wipe out of the visibility of the charge stripe order. A magnetic field of 10 Tesla applied along the c-axis has no reversing effect on the charge order. We compare this observation with the Zn-doping dependence of the crystal structure, superconductivity, and normal state magnetism. C1 [Huecker, M.; Xu, Z. J.; Wen, J. S.; Gu, G. D.; Tranquada, J. M.] Brookhaven Natl Lab, Upton, NY 11973 USA. [v. Zimmermann, M.] Deutsch Elektronen Synchrotron DESY, Hamburger Synchrotronstrahlungslab HASYLAB, D-22603 Hamburg, Germany. [Tian, W.; Zarestky, J.] Ames Lab, Ames, IA 50011 USA. RP Hucker, M (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM huecker@bnl.gov RI Tranquada, John/A-9832-2009; Wen, Jinsheng/F-4209-2010; xu, zhijun/A-3264-2013; Gu, Genda/D-5410-2013; Tian, Wei/C-8604-2013 OI Tranquada, John/0000-0003-4984-8857; Wen, Jinsheng/0000-0001-5864-1466; xu, zhijun/0000-0001-7486-2015; Gu, Genda/0000-0002-9886-3255; Tian, Wei/0000-0001-7735-3187 FU Office of Science, U.S. Department of Energy [DE-AC02-98CH10886]; US DOE, Office of Basic Energy Sciences FX The work at Brookhaven was supported by the Office of Science, U.S. Department of Energy under Contract No. DE-AC02-98CH10886. J.S.W. and Z.J.X. are supported by the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the US DOE, Office of Basic Energy Sciences. NR 21 TC 5 Z9 5 U1 0 U2 8 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1557-1939 EI 1557-1947 J9 J SUPERCOND NOV MAGN JI J. Supercond. Nov. Magn PD APR PY 2011 VL 24 IS 3 BP 1229 EP 1233 DI 10.1007/s10948-010-1122-0 PG 5 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 749SD UT WOS:000289488800023 ER PT J AU Mun, BS Rossi, M Enta, Y AF Mun, Bongjin Simon Rossi, Massimiliano Enta, Yoshiharu TI Effect of Interfacial Strain in Wet Oxidation Kinetics on Si(100) SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article; Proceedings Paper CT Korea-China Symposium on Advanced Functional Films for Information CY AUG 17-21, 2010 CL Univ Ulsan, Ulsan, SOUTH KOREA HO Univ Ulsan DE Ambient pressure XPS; Si oxidation; Interfacial reaction; Diffusion ID THERMAL-OXIDATION; SILICON AB Ambient pressure X-ray photoelectron spectroscopy is utilized to study the kinetics of the wet oxidation process on a Si(100) surface. The kinetics of each individual oxidation state is monitored as a function of temperature. The role of possible strain at the interfacial reaction in the oxidation kinetics is probed with an alternating wet and dry oxidation process. C1 [Mun, Bongjin Simon] Hanyang Univ ERICA, Dept Appl Phys, Ansan 426791, South Korea. [Rossi, Massimiliano] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Enta, Yoshiharu] Hirosaki Univ, Fac Sci & Technol, Hirosaki, Aomori 0368561, Japan. RP Mun, BS (reprint author), Hanyang Univ ERICA, Dept Appl Phys, Ansan 426791, South Korea. EM simon.mun@gmail.com RI Enta, Yoshiharu/F-6995-2013; Mun, Bongjin /G-1701-2013 OI Enta, Yoshiharu/0000-0003-0199-1814; NR 9 TC 0 Z9 0 U1 1 U2 4 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 EI 1976-8524 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD APR PY 2011 VL 58 IS 4 SI SI BP 920 EP 923 DI 10.3938/jkps.58.920 PN 1 PG 4 WC Physics, Multidisciplinary SC Physics GA 751IV UT WOS:000289611600012 ER PT J AU Beaumont, RC AF Beaumont, Ringo Conway TI FILM RT Developing and Modifying a Technique in Film Radiography SO MATERIALS EVALUATION LA English DT Article C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Beaumont, RC (reprint author), Los Alamos Natl Lab, POB 1663,MS P916, Los Alamos, NM 87545 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC NONDESTRUCTIVE TEST PI COLUMBUS PA 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 USA SN 0025-5327 J9 MATER EVAL JI Mater. Eval. PD APR PY 2011 VL 69 IS 4 BP 442 EP 451 PG 10 WC Materials Science, Characterization & Testing SC Materials Science GA 749VW UT WOS:000289500300002 ER PT J AU Heber, VS Wiens, RC Jurewicz, AJG Vogel, N Reisenfeld, DB Baur, H McKeegan, KD Wieler, R Burnett, DS AF Heber, Veronika S. Wiens, Roger C. Jurewicz, Amy J. G. Vogel, Nadia Reisenfeld, Daniel B. Baur, Heinrich McKeegan, Kevin D. Wieler, Rainer Burnett, Donald S. TI Isotopic and elemental fractionation of solar wind implanted in the Genesis concentrator target characterized and quantified by noble gases SO METEORITICS & PLANETARY SCIENCE LA English DT Article ID NITROGEN; MISSION; ION AB We report concentrations and isotopic compositions of He, Ne, and Ar measured with high spatial resolution along a radial traverse of a silicon carbide (SiC) quadrant of the Genesis mission concentrator target. The Ne isotopic composition maps instrumental fractionation as a function of radial position in the target: the maximum observed isotopic fractionation is approximately 33 parts per thousand per mass unit between the center and periphery. The Ne fluence is enhanced by a factor of 43 at the target center and decreases to 5.5 times at the periphery relative to the bulk solar wind fluence. Neon isotopic profiles measured along all four arms of the "gold cross" mount which held the quadrants in the concentrator target demonstrate that the concentrator target was symmetrically irradiated during operation as designed. We used implantation experiments of Ne into SiC and gold to quantify backscatter loss and isotopic fractionation and compared measurements with numerical simulations from the code "stopping and range of ions in matter." The 20Ne fluence curve as a function of radial distance on the target may be used to construct concentration factors relative to bulk solar wind for accurate corrections for solar wind fluences of other light elements to be measured in the concentrator target. The Ne isotopic composition as a function of the radial distance in the SiC quadrant provides a correction for the instrumental mass-dependent isotopic fractionation by the concentrator and can be used to correct measured solar wind oxygen and nitrogen isotopic compositions to obtain bulk solar wind isotopic compositions. C1 [Heber, Veronika S.; Vogel, Nadia; Baur, Heinrich; Wieler, Rainer] ETH, Inst Geochem & Petr, CH-8092 Zurich, Switzerland. [Heber, Veronika S.; McKeegan, Kevin D.] Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA. [Wiens, Roger C.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Jurewicz, Amy J. G.] Arizona State Univ, Ctr Meteorite Studies, Tempe, AZ 85287 USA. [Reisenfeld, Daniel B.] Univ Montana, Dept Phys & Astron, Missoula, MT 87544 USA. [Burnett, Donald S.] CALTECH, Pasadena, CA 91109 USA. RP Heber, VS (reprint author), ETH, Inst Geochem & Petr, CH-8092 Zurich, Switzerland. EM heber@ess.ucla.edu RI McKeegan, Kevin/A-4107-2008; Wieler, Rainer/A-1355-2010; Reisenfeld, Daniel/F-7614-2015; UCLA, SIMS/A-1459-2011 OI McKeegan, Kevin/0000-0002-1827-729X; Wieler, Rainer/0000-0001-5666-7494; FU NASA Discovery Mission Office; NASA Laboratory Analysis of Returned Samples Program Office; Swiss National Science Foundation; NASA Cosmochemistry FX We thank NASA Discovery Mission Office for its support of the Genesis mission and the NASA Laboratory Analysis of Returned Samples Program Office for providing subsequent support. We greatly appreciate the support from Judith H. Allton and the entire Genesis curation team at Johnson Space Center for sample selection. We are grateful to Yong Wang and the Los Alamos Ion Beam Materials Laboratory for performing the ion implants used in this work. We are very thankful for the comments and corrections provided by the referees Andrew Davis, Bernard Marty, Sasha Verchovsky and by the Associate Editor Marc Caffee. V. S. Heber acknowledges support by the Swiss National Science Foundation and NASA Cosmochemistry. NR 19 TC 10 Z9 10 U1 0 U2 7 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1086-9379 J9 METEORIT PLANET SCI JI Meteorit. Planet. Sci. PD APR PY 2011 VL 46 IS 4 BP 493 EP 512 DI 10.1111/j.1945-5100.2011.01170.x PG 20 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 749KK UT WOS:000289464600001 ER PT J AU Van Weverberg, K van Lipzig, NPM Delobbe, L AF Van Weverberg, Kwinten van Lipzig, Nicole P. M. Delobbe, Laurent TI The Impact of Size Distribution Assumptions in a Bulk One-Moment Microphysics Scheme on Simulated Surface Precipitation and Storm Dynamics during a Low-Topped Supercell Case in Belgium SO MONTHLY WEATHER REVIEW LA English DT Article ID NONHYDROSTATIC ATMOSPHERIC SIMULATION; PREDICTION SYSTEM ARPS; CLOUD MICROPHYSICS; PART II; EXPLICIT MICROPHYSICS; NUMERICAL SIMULATIONS; CONVECTIVE STORMS; MODEL DESCRIPTION; PARAMETERIZATION; HAIL AB In this research the impact of modifying the size distribution assumptions of the precipitating hydrometeors in a bulk one-moment microphysics scheme on simulated surface precipitation and storm dynamics has been explored for long-lived low-topped supercells in Belgium. It was shown that weighting the largest precipitating ice species of the microphysics scheme to small graupel results in an increase of surface precipitation because of counteracting effects. On the one hand, the precipitation formation process slowed down, resulting in lower precipitation efficiency. On the other hand, latent heat release associated with freezing favored more intense storms. In contrast to previous studies finding decreased surface precipitation when graupel was present in the microphysics parameterization, storms were rather shallow in the authors' simulations. This left little time for graupel sublimation. The impact of size distribution assumptions of snow was found to be small, but more realistic size distribution assumptions of rain led to the strongest effect on surface precipitation. Cold pools shrunk because of weaker rain evaporation at the cold pool boundaries, leading to a decreased surface rain area. C1 [Van Weverberg, Kwinten] Brookhaven Natl Lab, Div Atmospher Sci, Upton, NY 11973 USA. [Van Weverberg, Kwinten; van Lipzig, Nicole P. M.] Katholieke Univ Leuven, Dept Earth & Environm Sci, Heverlee, Belgium. [Delobbe, Laurent] Royal Meteorol Inst, Uccle, Belgium. RP Van Weverberg, K (reprint author), Brookhaven Natl Lab, Div Atmospher Sci, Bldg 490-D,75 Rutherford Dr, Upton, NY 11973 USA. EM kvweverberg@bnl.gov FU Flemish Fund for Scientific Research (FWO-Vlaanderen) FX This research was carried out in the framework of the QUEST-B project, funded by the Flemish Fund for Scientific Research (FWO-Vlaanderen). Furthermore, we would like to acknowledge the Center for Analysis and Prediction of Storms (CAPS) of Oklahoma University for providing the ARPS source code online. This research is conducted utilizing high-performance computational resources provided by the University of Leuven (available online at http://ludit.kuleuven.be/hpc). NR 38 TC 19 Z9 19 U1 0 U2 7 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0027-0644 EI 1520-0493 J9 MON WEATHER REV JI Mon. Weather Rev. PD APR PY 2011 VL 139 IS 4 BP 1131 EP 1147 DI 10.1175/2010MWR3481.1 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 751DH UT WOS:000289597200005 ER PT J AU Yoo, JJ Balakrishnan, K Huang, JS Meunier, V Sumpter, BG Srivastava, A Conway, M Reddy, ALM Yu, J Vajtai, R Ajayan, PM AF Yoo, Jung Joon Balakrishnan, Kaushik Huang, Jingsong Meunier, Vincent Sumpter, Bobby G. Srivastava, Anchal Conway, Michelle Reddy, Arava Leela Mohana Yu, Jin Vajtai, Robert Ajayan, Pulickel M. TI Ultrathin Planar Graphene Supercapacitors SO NANO LETTERS LA English DT Article DE Graphene; supercapacitor; in-plane geometry; single-layer graphene; multilayer graphene ID DOUBLE-LAYER CAPACITOR; ELECTROCHEMICAL CAPACITORS; ELECTRODE MATERIAL; CARBON NANOTUBES; ENERGY-STORAGE; FILMS; TRANSPARENT; PERFORMANCE; NANOSHEETS; GRAPHITE AB With the advent of atomically thin and flat layers of conducting materials such as graphene, new designs for thin film energy storage devices with good performance have become possible. Here, we report an "in-plane" fabrication approach for ultrathin supercapacitors based on electrodes comprised of pristine graphene and multilayer reduced graphene oxide. The in plane design is straightforward to implement and exploits efficiently the surface of each graphene layer for energy storage. The open architecture and the effect of graphene edges enable even the thinnest of devices, Made from as grown 1-2 graphene layers, to reach specific capacities up to 80 mu Fcm(-2), while much higher (394 mu Fcm(-2)) specific capacities are observed multilayer reduced graphene oxide electrodes. The performances of devices with pristine as well as thicker graphene-based structures are examined using a combination of experiments and model calculations. The demonstrated all solid-state supercapacitors provide a prototype for a broad range of thin-film based energy storage devices. C1 [Huang, Jingsong; Meunier, Vincent; Sumpter, Bobby G.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Yoo, Jung Joon; Balakrishnan, Kaushik; Srivastava, Anchal; Conway, Michelle; Reddy, Arava Leela Mohana; Vajtai, Robert; Ajayan, Pulickel M.] Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77251 USA. [Yoo, Jung Joon; Yu, Jin] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea. [Srivastava, Anchal] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India. RP Meunier, V (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. EM meuniv@rpi.edu; ajayan@rice.edu RI Huang, Jingsong/A-2789-2008; Meunier, Vincent/F-9391-2010; Yu, Jin/C-1855-2011; Sumpter, Bobby/C-9459-2013; Arava, Leela Mohana Reddy/J-3180-2015 OI Huang, Jingsong/0000-0001-8993-2506; Meunier, Vincent/0000-0002-7013-179X; Sumpter, Bobby/0000-0001-6341-0355; FU Rice University; Advanced Energy Consortium (AEC) [BEG 10-02]; Korea government (MEST) [2010-0000862]; ORNL; Division of Materials Science and Engineering, Basic Energy Sciences, U.S. Department of Energy; Scientific User Facilities Division, U.S. Department of Energy; Department of Science and Technology (DST), India FX P.M.A. acknowledges the support from Rice University start-up grants. K.B. and J.J.Y. extend gratitude to Professor Bruce Weisman, Rice University, and his group for allowing access to their microbalance. Some parts of this research were funded through Advanced Energy Consortium (AEC, BEG 10-02). J.J.Y. acknowledges the support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2010-0000862). J.H., V.M., and B.G.S. acknowledge support from the Laboratory Directed Research and Development Program of ORNL, the Division of Materials Science and Engineering, Basic Energy Sciences, U.S. Department of Energy and the Center for Nanophase Materials Sciences, sponsored by the Scientific User Facilities Division, U.S. Department of Energy. A.S. acknowledges the support from Department of Science and Technology (DST), India, under BOYSCAST fellowship. NR 35 TC 510 Z9 523 U1 63 U2 568 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1423 EP 1427 DI 10.1021/nl200225J PG 5 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500005 PM 21381713 ER PT J AU Ko, H Ryu, K Park, H Park, C Jeon, D Kim, YK Jung, J Min, DK Kim, Y Lee, HN Park, Y Shin, H Hong, S AF Ko, Hyoungsoo Ryu, Kyunghee Park, Hongsik Park, Chulmin Jeon, Daeyoung Kim, Yong Kwan Jung, Juhwan Min, Dong-Ki Kim, Yunseok Lee, Ho Nyung Park, Yoondong Shin, Hyunjung Hong, Seungbum TI High-Resolution Field Effect Sensing of Ferroelectric Charges SO NANO LETTERS LA English DT Article DE Charge imaging; field effect; resistive probe; ferroelectric; scanning probe microscopy ID PROBE FORCE MICROSCOPY; SCANNING RESISTIVE PROBE; DATA-STORAGE; HETEROSTRUCTURES; NANOSCALE; CONTRAST; DOMAINS; LIMIT AB Nanoscale manipulation of surface charges and their imaging are essential for understanding local electronic behaviors of polar materials and advanced electronic devices. Electrostatic force microscopy and Kelvin probe force microscopy have been extensively used to probe and image local surface charges responsible for electrodynamics and transport phenomena. However, they rely on the weak electric force modulation of cantilever that limits both spatial and temporal resolutions. Here we present a field effect transistor embedded probe that can directly image surface charges on a length scale of 25 nm and a time scale of less than 125 mu s. On the basis of the calculation of net surface in a 25 nm diameter ferroelectric domain, we could estimate the charge density resolution to be as low as 0.08 mu C/cm(2), which is equivalent to 1/20 electron per nanometer square at room temperature. C1 [Ko, Hyoungsoo; Park, Hongsik; Park, Chulmin; Jeon, Daeyoung; Kim, Yong Kwan; Jung, Juhwan; Min, Dong-Ki; Park, Yoondong; Hong, Seungbum] Samsung Adv Inst Technol, Semicond Device Lab, Yongin 446712, South Korea. [Ko, Hyoungsoo; Park, Chulmin; Kim, Yong Kwan; Jung, Juhwan; Min, Dong-Ki; Park, Yoondong] Samsung Elect, Semicond R&D Ctr, Yongin 446711, South Korea. [Ryu, Kyunghee; Shin, Hyunjung] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea. [Park, Hongsik] Brown Univ, Div Engn, Providence, RI 02912 USA. [Jeon, Daeyoung] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea. [Kim, Yunseok] Max Planck Inst Microstruct Phys, D-06120 Halle, Saale, Germany. [Lee, Ho Nyung] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Hong, Seungbum] Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA. RP Hong, S (reprint author), Samsung Adv Inst Technol, Semicond Device Lab, Yongin 446712, South Korea. EM hong@anl.gov RI Shin, Hyunjung/D-5107-2009; Kim, Yu Jin/A-2433-2012; Hong, Seungbum/B-7708-2009; Lee, Ho Nyung/K-2820-2012 OI Shin, Hyunjung/0000-0003-1284-9098; Hong, Seungbum/0000-0002-2667-1983; Lee, Ho Nyung/0000-0002-2180-3975 FU Samsung Electronics, Inc.; U Chicago Argonne; U.S. DOE Office of Science Laboratory [DE-AC02-06CH11357]; NRL2007-0057024; Nano RD program [2009-0082717]; CMPS of Korean NRF of Kookmin University [R11-2005-048-00000-0]; Materials Science and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy FX The main part of this work was supported by Samsung Electronics, Inc. S.H. acknowledges financial support by U Chicago Argonne, a U.S. DOE Office of Science Laboratory, operated under Contract no. DE-AC02-06CH11357. H.S. acknowledges financial supports from the NRL program (2007-0057024), the Nano R&D program (2009-0082717), the CMPS (R11-2005-048-00000-0) of Korean NRF and the 2009 research program of Kookmin University. The Work at Oak Ridge National Laboratory (H.N.L.) was sponsored by the Materials Science and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy. We gratefully acknowledge G. Crabtree at Argonne National Laboratory for his critical reading of this manuscript. H.K, H.P., H.S. and S.H. conceived the wedge-shaped resistive probe experiments, conducted the data analysis, and wrote the paper. H.K., H.P., C.P., D.M., and Y.P. designed, fabricated, and characterized the resistive probes, J. J. and H.K carried out TCAD simulation of the proposed RP design, and KR, S.H., and Y.K. performed the comparison studies of PFM, KFM, and RP. H.K and KR. conducted the high speed RP measurement. Y.KK and H.N.L. provided epitaxial PZT samples and discussed the data acquired by PPM, KFM, and RP. NR 30 TC 14 Z9 14 U1 4 U2 22 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1428 EP 1433 DI 10.1021/nl103372a PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500006 PM 21375284 ER PT J AU Frei, M Aradhya, SV Koentopp, M Hybertsen, MS Venkataraman, L AF Frei, Michael Aradhya, Sriharsha V. Koentopp, Max Hybertsen, Mark S. Venkataraman, L. TI Mechanics and Chemistry: Single Molecule Bond Rupture Forces Correlate with Molecular Backbone Structure SO NANO LETTERS LA English DT Article DE Molecular conductance; force spectroscopy; gold point contact; bond rupture; break-junction ID AUGMENTED-WAVE METHOD; CONDUCTANCE; JUNCTIONS; THERMOELECTRICITY; ADSORPTION; TRANSPORT AB We simultaneously measure conductance and force across nanoscale junctions. A new, two-dimensional histogram technique is introduced to statistically extract bond rupture forces from a large data set of individual junction elongation traces. For the case of Au point contacts, we find a rupture force of 1.4 +/- 0.2 nN, which is in good agreement with previous measurements. We then study systematic trends for single gold metal molecule metal junctions for a series of molecules terminated with amine and pyridine linkers. For all molecules studied, single molecule junctions rupture at the Au-N bond. Selective binding of the linker group allows us to correlate the N-Au bond-rupture force to the molecular backbone. We find that the rupture force ranges from 0.8 nN for 4,4' bipyridine to 0.5 nN in 1,4 diaminobenzene. These experimental results are in excellent quantitative agreement with density functional theory based adiabatic molecular junction elongation and rupture calculations. C1 [Hybertsen, Mark S.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Frei, Michael; Aradhya, Sriharsha V.; Venkataraman, L.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA. [Koentopp, Max; Venkataraman, L.] Columbia Univ, Ctr Electron Transport Mol Nanostruct, New York, NY USA. RP Hybertsen, MS (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. EM mhyberts@bnl.gov; lv2117@columbia.edu RI Aradhya, Sriharsha/D-7728-2012; Aradhya, Sriharsha/G-5312-2012; OI Aradhya, Sriharsha/0000-0002-4738-7068; Venkataraman, Latha/0000-0002-6957-6089; Hybertsen, Mark S/0000-0003-3596-9754 FU NSF [CHE-07-44185]; Nanoscale Science and Engineering Initiative of the NSF [CHE-0117752, CHE-0641523]; New York State Office of Science, Technology and Academic Research (NYSTAR); U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX This work was supported in part by NSF Career Award (CHE-07-44185) (M.F., S.V.A and L.V.), by the Nanoscale Science and Engineering Initiative of the NSF (award numbers CHE-0117752 and CHE-0641523) (M.K.), and the New York State Office of Science, Technology and Academic Research (NYSTAR). A portion of this work was performed using facilities in the Center for Functional Nanomaterials at Brookhaven National Laboratory and supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under contract number DE-AC02-98CH10886 (M.S.H.). NR 29 TC 71 Z9 72 U1 3 U2 57 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1518 EP 1523 DI 10.1021/nl1042903 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500022 PM 21366230 ER PT J AU Liu, Y Wang, C Wei, YJ Zhu, LY Li, DG Jiang, JS Markovic, NM Stamenkovic, VR Sun, SH AF Liu, Yi Wang, Chao Wei, Yujie Zhu, Leyi Li, Dongguo Jiang, J. Samuel Markovic, Nenad M. Stamenkovic, Vojislav R. Sun, Shouheng TI Surfactant-Induced Postsynthetic Modulation of Pd Nanoparticle Crystallinity SO NANO LETTERS LA English DT Article DE Palladium nanoparticle; surfactant exchange; nanoparticle structure; crystallinity modulation ID SHAPE-CONTROLLED SYNTHESIS; CONTROLLED-RELEASE; NANOCRYSTALS; CHEMISTRY; GOLD; AU; MONODISPERSE; NANOWIRES; AG; CU AB Modulation of Pd nanoparticle (NP) crystallinity is achieved by switching the surfactants of different binding strengths. Pd NPs synthesized in the presence of weak binding surfactants. such as oleylamine possess polyhedral shapes and a polycrystalline nature. When oleylamine is substituted by trioctylphosphine, a much stronger binding surfactant, the particles become spherical and their crystallinity cleciease significantly. Moreover, the Pd NPs reconvert their polycrystalline structure when the surfactant is switched back to oleylarnine. Through control experiments and molecular dynamics simulation, we propose that this unusual nanocrystallinity transition induced, by surfactant exchange was resulted from a counterbalance between the surfactant binding energy and the nanncrystal adhesive energy. The findings represent a novel postsynthetic approach to tailoring the structure and corresponding functional performance of nanomaterials. C1 [Wang, Chao; Zhu, Leyi; Li, Dongguo; Jiang, J. Samuel; Markovic, Nenad M.; Stamenkovic, Vojislav R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Liu, Yi; Li, Dongguo; Sun, Shouheng] Brown Univ, Dept Chem, Providence, RI 02912 USA. [Wei, Yujie] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. RP Wang, C (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM chaowang@anl.gov; ssun@brown.edu RI Zhu, Leyi/E-8270-2010; Wang, Chao/F-4558-2012; Wei, Yujie/A-3770-2009; Li, Dongguo/O-6253-2016 OI Wang, Chao/0000-0001-7398-2090; Wei, Yujie/0000-0002-3213-7891; Li, Dongguo/0000-0001-7578-7811 FU U.S. Department of Energy, Office of Basic Energy Science [DE-AC02-06CH11357]; Chinese Academy of Sciences FX This project was supported in part by ExxonMobil. The work conducted at Argonne National Laboratory (a U.S. Department of Energy, Office of Science Laboratory, operated by UChicago Argonne, LLC, under Contract No. DE-AC02-06CH11357) was sponsored by the U.S. Department of Energy, Office of Basic Energy Science. Y.W. acknowledges the support from the Chinese Academy of Sciences under the "Hundred Talent Program". NR 32 TC 53 Z9 53 U1 4 U2 67 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1614 EP 1617 DI 10.1021/nl104548g PG 4 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500038 PM 21355537 ER PT J AU Huang, JY Zheng, H Mao, SX Li, QM Wang, GT AF Huang, Jian Yu Zheng, He Mao, S. X. Li, Qiming Wang, George T. TI In Situ Nanomechanics of GaN Nanowires SO NANO LETTERS LA English DT Article DE GaN nanowire; nanomechanics; dislocation; plasticity; fracture; in-situ electron microscopy ID GALLIUM NITRIDE NANOWIRES; CHEMICAL-VAPOR-DEPOSITION; LIGHT-EMITTING-DIODES; SEMICONDUCTOR NANOWIRES; GROWTH; NANOTUBES; DEFORMATION; NANODEVICES; PLASTICITY; STRENGTH AB The deformation, fracture mechanisms, and the fracture strength of individual GaN nanowires were measured in real time using a transmission electron microscope scanning probe microscope (TEM-SPM) platform. Surface mediated plasticity, such as dislocation nucleation from a free surface and plastic deformation between the SPM probe (the punch) and the nanowire contact surface were observed in situ. Although local plasticity was observed frequently, global plasticity was not observed, indicating the overall brittle nature of this material. Dislocation nucleation and propagation is a precursor before the fracture event, but the fracture surface shows brittle characteristic. The fracture surface is not straight but kinked at (10-10) or (10-11) planes. Dislocations are generated at a stress near the fracture strength of the nanowire, which ranges from 0.21 to 1.76 GPa. The results assess the mechanical properties of GaN nanowires and may provide important insight into the design of GaN nanowire devices for electronic and optoelectronic applications. C1 [Huang, Jian Yu; Li, Qiming; Wang, George T.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Zheng, He; Mao, S. X.] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA. [Zheng, He] Wuhan Univ, Dept Phys, Ctr Electron Microscopy, Wuhan 430072, Peoples R China. [Zheng, He] Wuhan Univ, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China. RP Huang, JY (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM jhuang@sandia.gov RI Wang, George/C-9401-2009; Huang, Jianyu/C-5183-2008; Zheng, He/E-2964-2012 OI Wang, George/0000-0001-9007-0173; Zheng, He/0000-0002-6476-8524 FU DOE BES; NNSA; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Chinese Scholarship Council; NSF through University of Pittsburgh [CMMI 08 010934]; Sandia National Laboratories FX We acknowledge support from Sandia's Solid State Lighting Science Energy Frontier Research Center, funded by DOE BES, and the NNSA's Laboratory Directed Research and Development program. A part of this work was performed at the Center for Integrated Nanotechnologies, a U.S. DOE, BES user facility. Sandia National Laboratories is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. H.Z. thanks Chinese Scholarship Council for financial support. S.X.M. acknowledges NSF CMMI 08 010934 through University of Pittsburgh and Sandia National Laboratories support. NR 37 TC 32 Z9 33 U1 3 U2 66 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1618 EP 1622 DI 10.1021/nl200002x PG 5 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500039 PM 21417390 ER PT J AU Trinh, MT Polak, L Schins, JM Houtepen, AJ Vaxenburg, R Maikov, GI Grinbom, G Midgett, AG Luther, JM Beard, MC Nozik, AJ Bonn, M Lifshitz, E Siebbeles, LDA AF Trinh, M. Tuan Polak, Leo Schins, Juleon M. Houtepen, Arjan J. Vaxenburg, Roman Maikov, Georgy I. Grinbom, Gal Midgett, Aaron G. Luther, Joseph M. Beard, Matthew C. Nozik, Arthur J. Bonn, Mischa Lifshitz, Efrat Siebbeles, Laurens D. A. TI Anomalous Independence of Multiple Exciton Generation on Different Group IV-VI Quantum Dot Architectures SO NANO LETTERS LA English DT Article DE Multiple exciton generation; hot exciton cooling; Auger recombination; quantum dot architecture ID CARRIER-MULTIPLICATION; SEMICONDUCTOR NANOCRYSTALS; MULTIEXCITON GENERATION; PBSE NANOCRYSTALS; COLLOIDAL PBSE; SINGLE-PHOTON; SOLAR-CELLS; EFFICIENCY; SPECTROSCOPY AB Multiple exciton generation (MEG) in PbSe quantum dots (QDs), PbSexS1-x alloy QDs, PbSe/PbS core/shell QDs, and PbSe/ PbSeyS1-y core/alloy-shell QDs was studied with time-resolved optical pump and probe spectroscopy. The optical absorption exhibits a red-shift upon the introduction of a shell around a PbSe core, which increases with the thickness of the shell. According to electronic structure calculations this can be attributed to charge delocalization into the shell. Remarkably, the measured quantum yield of MEG, the hot exciton cooling rate, and the Auger recombination rate of biexcitons are similar for pure PbSe QDs and core/shell QDs with the same core size and varying shell thickness. The higher density of states in the alloy and core/shell QDs provide a faster exciton cooling channel that likely competes with the fast MEG process due to a higher biexciton density of states. Calculations reveal only a minor asymmetric delocalization of holes and electrons over the entire core/shell volume, which may partially explain why the Auger recombination rate does not depend on the presence of a shell. C1 [Trinh, M. Tuan; Polak, Leo; Schins, Juleon M.; Houtepen, Arjan J.; Siebbeles, Laurens D. A.] Delft Univ Technol, Dept Chem Engn, Optoelect Mat Sect, NL-2628 BL Delft, Netherlands. [Vaxenburg, Roman; Maikov, Georgy I.; Grinbom, Gal; Lifshitz, Efrat] Technion Israel Inst Technol, Dept Chem, IL-3200 Haifa, Israel. [Vaxenburg, Roman; Maikov, Georgy I.; Grinbom, Gal; Lifshitz, Efrat] Technion Israel Inst Technol, Inst Solid State, IL-3200 Haifa, Israel. [Midgett, Aaron G.; Luther, Joseph M.; Beard, Matthew C.; Nozik, Arthur J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Bonn, Mischa] FOM Inst Atom & Mol Phys, NL-1098 XG Amsterdam, Netherlands. RP Siebbeles, LDA (reprint author), Delft Univ Technol, Dept Chem Engn, Optoelect Mat Sect, Julianalaan 136, NL-2628 BL Delft, Netherlands. EM l.d.a.siebbeles@tudelft.nl RI Trinh, Minh Tuan/A-9740-2009; Bonn, Mischa/H-7446-2012; Siebbeles, Laurens/I-2401-2012; Houtepen, Arjan/E-9754-2011; Nozik, Arthur/A-1481-2012; Nozik, Arthur/P-2641-2016; Vaxenburg, Roman/P-8190-2016; OI Bonn, Mischa/0000-0001-6851-8453; Siebbeles, Laurens/0000-0002-4812-7495; Houtepen, Arjan/0000-0001-8328-443X; BEARD, MATTHEW/0000-0002-2711-1355; Polak, Leo/0000-0002-2275-5629 FU Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO); gebied Chemische Wetenschappen of NWO; Stichting Shell Research; 3TU Centre for Sustainable Energy Technologies (Federation of the Three Universities of Technology); USA-Israel Binational Science Foundation [2006225]; U.S. DOE, Office of Science/Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences FX This work is part of the Joint Solar Programme (JSP) of the Stichting voor Fundamenteel Onderzoek der Materie FOM, which is supported financially by Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO). The JSP is cofinanced by gebied Chemische Wetenschappen of NWO and Stichting Shell Research. A.J.H. acknowledges the 3TU Centre for Sustainable Energy Technologies (Federation of the Three Universities of Technology) for financial support. E. Lifshitz and A. Nozik wish to express their thanks for the support of the USA-Israel Binational Science Foundation, project no. 2006225. M. C. Beard., J. M. Luther, and A. C. Midgett were supported by the U.S. DOE, Office of Science/Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. NR 56 TC 40 Z9 40 U1 1 U2 50 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1623 EP 1629 DI 10.1021/nl200014g PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500040 PM 21348493 ER PT J AU Li, XD Meng, GW Xu, QL Kong, MG Zhu, XG Chu, ZQ Li, AP AF Li, Xiangdong Meng, Guowen Xu, Qiaoling Kong, Mingguang Zhu, Xiaoguang Chu, Zhaoqin Li, An-Ping TI Controlled Synthesis of Germanium Nanowires and Nanotubes with Variable Morphologies and Sizes SO NANO LETTERS LA English DT Article DE Germanium; nanowires; nanotubes; anodic aluminum oxide; chemical vapor deposition; electrodeposition ID SILICON NANOWIRES; CONTROLLED GROWTH; CARBON NANOTUBES; ALUMINA; ARRAYS AB We report on the controlled growth of germanium (Ge) nanostructures in the form of both nanowire (NW) and nanotube (NT) with ultrahigh aspect ratios and variable diameters. The nanostructures are grown inside a porous anodic aluminum oxide (AAO) template by low-temperature chemical vapor deposition (CVD) assisted by an electrodeposited metal nanorod catalyst. Depending on the choice of catalytic metals (Au, Ni, Cu, Co) and germane (GeH4) concentration during CVD, either Ge NWs or NTs can be synthesized at low growth temperatures (310-370 degrees C). Furthermore, Ge NWs and NTs with two or more branches can be grown from the same stem while using AAO with branched channels as templates. Transmission electron microscopy studies show that NWs are single crystalline and that branches grow epitaxially from the stem of NWs with a crystalline direction independent of diameter. As-grown NTs are amorphous but can crystallize via postannealing at 400 degrees C in Ar/H-2 atmosphere, with a wall thickness controllable between 6 and 18 nm in the CVD process. The yield and quality of the NTs are critically dependent on the choice of the catalyst, where Ni appears the best choice for Ge NT growth among Ni, Cu, Co, and Au. The synthesis of structurally uniform and morphologically versatile Ge nanostructures may open up new opportunities for integrated Ge-nanostructure-based nanocircuits, nanodevices, and nanosystems. C1 [Li, Xiangdong; Meng, Guowen; Xu, Qiaoling; Kong, Mingguang; Zhu, Xiaoguang; Chu, Zhaoqin] Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China. [Li, Xiangdong; Meng, Guowen; Xu, Qiaoling; Kong, Mingguang; Zhu, Xiaoguang; Chu, Zhaoqin] Chinese Acad Sci, Anhui Key Lab Nanomat & Nanostruct, Inst Solid State Phys, Hefei 230031, Peoples R China. [Li, An-Ping] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Meng, GW (reprint author), Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China. EM gwmeng@issp.ac.cn RI Li, An-Ping/B-3191-2012; li, Xiangdong/K-2008-2013 OI Li, An-Ping/0000-0003-4400-7493; li, Xiangdong/0000-0003-2519-8757 FU National Natural Science Foundation of China [50525207, 50972145]; National Basic Research Program of China [2007CB936601]; Center for Nanophase Materials Sciences at Oak Ridge National Laboratory by the Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy FX This work was supported by the National Natural Science Foundation of China (grant no. 50525207 and 50972145), National Basic Research Program of China (grant no. 2007CB936601), and the Center for Nanophase Materials Sciences at Oak Ridge National Laboratory by the Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy (A.-P.L.). NR 30 TC 30 Z9 30 U1 12 U2 115 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1704 EP 1709 DI 10.1021/nl200229p PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500055 PM 21417314 ER PT J AU Kronast, F Friedenberger, N Ollefs, K Gliga, S Tati-Bismaths, L Thies, R Ney, A Weber, R Hassel, C Romer, FM Trunova, AV Wirtz, C Hertel, R Durr, HA Farle, M AF Kronast, Florian Friedenberger, Nina Ollefs, Katharina Gliga, Sebastian Tati-Bismaths, Logane Thies, Ronja Ney, Andreas Weber, Ramona Hassel, Christoph Roemer, Florian M. Trunova, Anastasia V. Wirtz, Christian Hertel, Riccardo Duerr, Hermann A. Farle, Michael TI Element-Specific Magnetic Hysteresis of Individual 18 nm Fe Nanocubes SO NANO LETTERS LA English DT Article DE Nanoparticle; iron; magnetic; hysteresis; cubic; spectroscopy ID RAY CIRCULAR-DICHROISM; MICROSCOPY; NANOPARTICLES; NANOSTRUCTURES; HOLOGRAPHY; NANOSCALE; FIELDS; COBALT; IRON AB Correlating the electronic structure and magnetic response with the Morphology and crystal structure of the same single ferromagnetic nanoparticle has been up to now an unresolved challenge. Here, we present measurements of the element-specific electronic structure and magnetic response as a function of magnetic field amplitude and orientation for chemically synthesized single Fe nanocube with, 18 nm edge length. Magnetic states and interactions of monomers, dimers, and timers are analyzed by X-ray photoemission electron microscopy for different particle arrangements. The element specific electronic structure can be and correlated with the changes of magnetic properties. This approach opens new possibilities for a deeper understanding of the collective response of magnetic nanohybrids in multifunctional materials and in nanomagnetic colloidal suspensions used in biomedical and engineering technologies. C1 [Friedenberger, Nina; Ollefs, Katharina; Ney, Andreas; Hassel, Christoph; Roemer, Florian M.; Trunova, Anastasia V.; Wirtz, Christian; Farle, Michael] Univ Duisburg Essen, Fak Phys, D-47048 Duisburg, Germany. [Friedenberger, Nina; Ollefs, Katharina; Ney, Andreas; Hassel, Christoph; Roemer, Florian M.; Trunova, Anastasia V.; Wirtz, Christian; Farle, Michael] Univ Duisburg Essen, Ctr NanoIntegrat CeNIDE, D-47048 Duisburg, Germany. [Kronast, Florian; Thies, Ronja; Weber, Ramona] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany. [Hertel, Riccardo] Univ Strasbourg, Inst Phys & Chim Mat Strasbourg, CNRS, UMR 7504, F-67034 Strasbourg 2, France. [Gliga, Sebastian] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Tati-Bismaths, Logane] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany. [Duerr, Hermann A.] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. RP Farle, M (reprint author), Univ Duisburg Essen, Fak Phys, Lotharstr 1, D-47048 Duisburg, Germany. EM farle@uni-due.de RI Durr, Hermann/F-6205-2012; Ollefs, Katharina/F-5677-2016; Hertel, Riccardo/H-9964-2016; Hertel, Riccardo/P-5806-2016; Thies, Ronja/D-9686-2014; Gliga, Sebastian/K-4019-2015 OI Ollefs, Katharina/0000-0002-2301-4670; Hertel, Riccardo/0000-0002-0646-838X; Hertel, Riccardo/0000-0002-0646-838X; Kronast, Florian/0000-0001-6048-480X; Farle, Michael/0000-0002-1864-3261; Ney, Andreas/0000-0002-2388-6006; Thies, Ronja/0000-0002-6175-8611; Gliga, Sebastian/0000-0003-1729-1070 FU DFG [SFB 445]; EC [MRTN-CT-2004-005567]; Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH (HZB) FX Financial support by the DFG (SFB 445), the EC (MRTN-CT-2004-005567), and the "Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH (HZB)" is acknowledged. A.N. thanks the Heisenberg Programm of the DFG for support. NR 39 TC 29 Z9 29 U1 4 U2 51 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1710 EP 1715 DI 10.1021/nl200242c PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500056 PM 21391653 ER PT J AU Dong, AG Ye, XC Chen, J Murray, CB AF Dong, Angang Ye, Xingchen Chen, Jun Murray, Christopher B. TI Two-Dimensional Binary and Ternary Nanocrystal Superlattices: The Case of Monolayers and Bilayers SO NANO LETTERS LA English DT Article DE Binary nanocrystal superlattices; free-standing membrane; monolayer; ternary nanocrystal superlattices; bilayer; interfacial assembly ID QUANTUM-DOT SUPERLATTICES; NANOPARTICLE SUPERLATTICES; ELECTRON TOMOGRAPHY; ARRAYS; PBSE; MEMBRANES; CRYSTALS; FILMS; DNA AB The modular assembly of multicomponent nanocrystal (NC) superlattices enables new metamaterials with programmable properties. While self-assembly of three-dimensional (3D) binary NC superlattices (BNSLs) has advanced significantly in the past decade, limited progress has been made to grow 2D BNSLs such as monolayers and bilayers over extended areas. Here, we report the growth of large-area (similar to 1 cm(2)), transferable BNSL monolayers using the liquid-air interfacial assembly approach. The BNSL monolayers are formed by an entropy-driven assembly process with structures tunable by varying the NC size ratio. We further demonstrate the liquid-air interfacial assembly of BNSL bilayers which exhibit unique superlattice structures that have not been observed in the 3D BNSLs. As a further extension, bilayered ternary NC superlattices (TNSLs) are obtained by the cocrystallization of three types of NCs at the liquid-air interface. C1 [Dong, Angang; Ye, Xingchen; Murray, Christopher B.] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA. [Chen, Jun; Murray, Christopher B.] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA. [Dong, Angang] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Dong, AG (reprint author), Univ Penn, Dept Chem, Philadelphia, PA 19104 USA. EM adong@lbl.gov; cbmurray@sas.upenn.edu RI Dong, Angang/C-5308-2014; Chen, Jun/F-7103-2014; Ye, Xingchen/D-3202-2017; OI Ye, Xingchen/0000-0001-6851-2721; Dong, Angang/0000-0002-9677-8778 FU Army Research Office (ARO) through MURI [W911NF-08-1-0364]; Department of Energy Basic Energy Science division [DE-SC0002158]; Office of Naval Research (ONR) [N00014-10-1-0942]; Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Richard Perry University FX A.D. and J.C. acknowledge financial support from the Army Research Office (ARO) through MURI award W911NF-08-1-0364 for development of the FePt and Fe3O4 NCs and assembly and characterization of BNSLs and TNSLs. X.Y. acknowledges support from the Department of Energy Basic Energy Science division through award DE-SC0002158 for development of NaYF4 NCs and the Office of Naval Research (ONR) through award N00014-10-1-0942 for the synthesis of Au NCs and assembly and characterization of BNSLs. This work was partially performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, and was supported by the Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. C.B.M. thanks the Department of Energy Basic Energy Science division through award DE-SC0002158 and Richard Perry University Professorship for support of his supervisor role. NR 38 TC 77 Z9 77 U1 11 U2 168 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1804 EP 1809 DI 10.1021/nl200468p PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500073 PM 21413781 ER PT J AU Habteyes, TG Dhuey, S Cabrini, S Schuck, PJ Leone, SR AF Habteyes, Terefe G. Dhuey, Scott Cabrini, Stefano Schuck, P. James Leone, Stephen R. TI Theta-Shaped Plasmonic Nanostructures: Bringing "Dark" Multipole Plasmon Resonances into Action via Conductive Coupling SO NANO LETTERS LA English DT Article DE Nanostructures; plasmon; multipole; quadrupole; octupole; Fano ID OPTICAL-PROPERTIES; GOLD NANOPARTICLES; SYMMETRY-BREAKING; FANO RESONANCE; NANOCAVITIES; NANORINGS; GROWTH; ARRAYS; LIMIT; SIZE AB Quadrupole plasmon and (octupolar) Fano resonances are induced in lithographically fabricated theta-shaped ring rod gold nanostructures. The optical response is characterized by measuring the light scattered by individual nanostructures. When the nanorod is brought within 3 nm of the ring wall, a weak quadrupolar resonance is observed due to capacitive coupling, and when a necklike conductive bridge links the nanorod to the nanoring the optical response changes dramatically bringing the quadrupolar resonance into prominence and creating an octupolar Fano resonance. The Fano resonance is observed due to the destructive interference of the octupolar resonance with the overlapping and broadened dipolar resonance. The quadrupolar and Fano resonances are further enhanced by capacitive coupling (near-field interaction) that is favored by the theta-shaped arrangement. The interpretation of the data is supported by FDTD simulation. C1 [Habteyes, Terefe G.; Leone, Stephen R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Habteyes, Terefe G.; Leone, Stephen R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Habteyes, Terefe G.; Leone, Stephen R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Dhuey, Scott; Cabrini, Stefano; Schuck, P. James] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Leone, SR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM srl@berkeley.edu FU University of California; MSD; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX T.G.H. is supported by the University of California President's Postdoctoral Fellowship Program. Supplies and equipment are provided through the Materials Research Division (MSD), Lawrence Berkeley National Laboratory (LBNL), and the nanofabrication and optical measurements were performed as a User project at the Molecular Foundry, LBNL. The funds through the MSD and the work at the Molecular Foundry are supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 40 TC 64 Z9 64 U1 4 U2 64 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD APR PY 2011 VL 11 IS 4 BP 1819 EP 1825 DI 10.1021/nl200585b PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 747TB UT WOS:000289341500076 PM 21425843 ER PT J AU Tao, XD Fernandez, B Azucena, O Fu, M Garcia, D Zuo, Y Chen, DC Kubby, J AF Tao, Xiaodong Fernandez, Bautista Azucena, Oscar Fu, Min Garcia, Denise Zuo, Yi Chen, Diana C. Kubby, Joel TI Adaptive optics confocal microscopy using direct wavefront sensing SO OPTICS LETTERS LA English DT Article AB Optical aberrations due to the inhomogeneous refractive index of tissue degrade the resolution and brightness of images in deep-tissue imaging. We introduce a confocal fluorescence microscope with adaptive optics, which can correct aberrations based on direct wavefront measurements using a Shack-Hartmann wavefront sensor with a fluorescent bead used as a point source reference beacon. The results show a 4.3 x improvement in the Strehl ratio and a 240% improvement in the signal intensity for fixed mouse tissues at depths of up to 100 mu m. (C) 2011 Optical Society of America C1 [Tao, Xiaodong; Fernandez, Bautista; Azucena, Oscar; Kubby, Joel] Univ Calif Santa Cruz, Jack Baskin Sch Engn, Santa Cruz, CA 95064 USA. [Chen, Diana C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Tao, XD (reprint author), Univ Calif Santa Cruz, Jack Baskin Sch Engn, 1156 High St,MS SOE2, Santa Cruz, CA 95064 USA. EM taoxd@soe.ucsc.edu FU National Science Foundation (NSF) [0852742] FX This work was supported by the National Science Foundation (NSF) (0852742). The authors acknowledge Claire Max at the Center for Adaptive Optics, Donald Gavel and Daren Dillon at the Laboratory for Adaptive Optics, and Yu-Chen Hwang from the Life Sciences Microscopy Center, University of California, Santa Cruz. NR 14 TC 56 Z9 57 U1 4 U2 24 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 EI 1539-4794 J9 OPT LETT JI Opt. Lett. PD APR 1 PY 2011 VL 36 IS 7 BP 1062 EP 1064 PG 3 WC Optics SC Optics GA 746ML UT WOS:000289251000012 PM 21478983 ER PT J AU Singh, R Azad, AK Jia, QX Taylor, AJ Chen, HT AF Singh, Ranjan Azad, Abul K. Jia, Q. X. Taylor, Antoinette J. Chen, Hou-Tong TI Thermal tunability in terahertz metamaterials fabricated on strontium titanate single-crystal substrates SO OPTICS LETTERS LA English DT Article AB We report an experimental demonstration of thermal tuning of resonance frequency in a planar terahertz metamaterial consisting of a gold split-ring resonator array fabricated on a bulk single-crystal strontium titanate (SrTiO3) substrate. Cooling the metamaterial starting from 409K down to 150K causes about a 43% shift in resonance frequency, and there is very little variation in resonance strength. The resonance shift is due to the temperature-dependent dielectric constant of the strontium titanate. The experiment opens up avenues for designing tunable terahertz devices by exploiting the temperature-sensitive characteristic of high dielectric constant substrates and complex metal oxide materials. (C) 2011 Optical Society of America C1 [Singh, Ranjan; Azad, Abul K.; Jia, Q. X.; Taylor, Antoinette J.; Chen, Hou-Tong] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Singh, R (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. EM ranjan@lanl.gov; chenht@lanl.gov RI Singh, Ranjan/B-4091-2010; Jia, Q. X./C-5194-2008; Chen, Hou-Tong/C-6860-2009 OI Singh, Ranjan/0000-0001-8068-7428; Chen, Hou-Tong/0000-0003-2014-7571 FU Los Alamos National Laboratory; Defense Advanced Research Projects Agency (DARPA)/Microsystems Technology (MTO); United States DOE [DE-AC52-06NA25396] FX We acknowledge support from the Los Alamos National Laboratory Laboratory Directed Research and Development (LDRD) Program, and acknowledge partial funding support by the Defense Advanced Research Projects Agency (DARPA)/Microsystems Technology (MTO) Casimir Effect Enhancement Program. This work was performed, in part, at the Center for Integrated Nanotechnologies, a United States Department of Energy (DOE), Office of Basic Energy 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 National Security, LLC, for the National Nuclear Security Administration of the United States DOE under contract DE-AC52-06NA25396. NR 15 TC 56 Z9 56 U1 1 U2 20 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 EI 1539-4794 J9 OPT LETT JI Opt. Lett. PD APR 1 PY 2011 VL 36 IS 7 BP 1230 EP 1232 PG 3 WC Optics SC Optics GA 746ML UT WOS:000289251000068 PM 21479039 ER PT J AU Chen, YT Chen, TY Yi, JM Chu, YS Lee, WK Wang, CL Kempson, IM Hwu, Y Gajdosik, V Margaritondo, G AF Chen, Yu-Tung Chen, Tsung-Yu Yi, Jaemock Chu, Yong S. Lee, Wah-Keat Wang, Cheng-Liang Kempson, Ivan M. Hwu, Y. Gajdosik, Vincent Margaritondo, G. TI Hard x-ray Zernike microscopy reaches 30 nm resolution SO OPTICS LETTERS LA English DT Article ID PHASE-CONTRAST MODE AB Since its invention in 1930, Zernike phase contrast has been a pillar in optical microscopy and more recently in x-ray microscopy, in particular for low-absorption-contrast biological specimens. We experimentally demonstrate that hard-x-ray Zernike microscopy now reaches a lateral resolution below 30nm while strongly enhancing the contrast, thus opening many new research opportunities in biomedicine and materials science. (C) 2011 Optical Society of America C1 [Gajdosik, Vincent; Margaritondo, G.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Chen, Yu-Tung; Chen, Tsung-Yu; Wang, Cheng-Liang; Kempson, Ivan M.; Hwu, Y.] Acad Sinica, Inst Phys, Taipei 115, Taiwan. [Yi, Jaemock; Chu, Yong S.; Lee, Wah-Keat] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Chu, Yong S.] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA. [Hwu, Y.] Natl Tsing Hua Univ, Dept Engn Sci & Syst, Hsinchu 300, Taiwan. [Hwu, Y.] Natl Taiwan Ocean Univ, Inst Optoelect Sci, Chilung 202, Taiwan. RP Margaritondo, G (reprint author), Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. EM phhwu@sinica.edu.tw; giorgio.margaritondo@epfl.ch RI Centre d'imagerie Biomedicale, CIBM/B-5740-2012; Kempson, Ivan/F-4526-2013; OI Kempson, Ivan/0000-0002-3886-9516 FU National Science and Technology for Nanoscience and Nanotechnology; Academia Sinica (Taiwan); Fonds National Suisse; Center for Biomedical Imaging (CIBM); United States Department of Energy (DOE) [DE-AC02-06CH11357] FX Research was supported by National Science and Technology for Nanoscience and Nanotechnology, the Thematic Project of Academia Sinica (Taiwan), the Fonds National Suisse, and the Center for Biomedical Imaging (CIBM). We used equipment of the Academia Sinica Core Facility for Nanoscience and Nanotechnology and Biomedical NanoImaging. The APS is supported by the United States Department of Energy (DOE) under contract DE-AC02-06CH11357. NR 15 TC 37 Z9 38 U1 1 U2 11 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 EI 1539-4794 J9 OPT LETT JI Opt. Lett. PD APR 1 PY 2011 VL 36 IS 7 BP 1269 EP 1271 PG 3 WC Optics SC Optics GA 746ML UT WOS:000289251000083 PM 21479054 ER PT J AU Chhajed, S Cho, J Schubert, EF Kim, JK Koleske, DD Crawford, MH AF Chhajed, Sameer Cho, Jaehee Schubert, E. Fred Kim, Jong Kyu Koleske, Daniel D. Crawford, Mary H. TI Temperature-dependent light-output characteristics of GaInN light-emitting diodes with different dislocation densities SO PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE LA English DT Article DE dislocation density; GaInN; light-emitting diodes AB We have experimentally investigated the temperature dependence of optical-output power of light-emitting diodes (LEDs) with different threading dislocation densities (TDDs) to assess the influence of the TDD on the temperature stability of LEDs. Whereas the LED with high TDD shows a 64% decrease in optical-output power when the ambient temperature increases from 20 to 150 degrees C, the LED with low TDD shows only a 54% decrease. The temperature dependence of the optical-output power and current dependence of the characteristic temperature T-ch of LEDs shows that short radiative recombination lifetime and low TDDs are essential to obtain LED characteristics that are tolerant of high temperatures. (c) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim C1 [Chhajed, Sameer; Cho, Jaehee; Schubert, E. Fred] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA. [Kim, Jong Kyu] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea. [Koleske, Daniel D.; Crawford, Mary H.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Cho, J (reprint author), Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA. EM cho.jaehee@gmail.com RI Cho, Jaehee/H-3506-2013 OI Cho, Jaehee/0000-0002-8794-3487 FU US Department of Energy, Office of Basic Energy Sciences; Samsung LED; National Science Foundation (NSF); New York State Energy Research and Development Authority (NYSERDA); Defense Advanced Research Projects Agency (DARPA); United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Work performed by S.C., J.C., D. D. K., and M. H. C. was supported by Sandia's Solid-State Lighting Science Center, an Energy Frontier Research Center funded by the US Department of Energy, Office of Basic Energy Sciences. The authors would also like to thank Stephen Lee of Sandia for valuable technical discussions. Contributions of E. F. S. and J. K. K. were supported by Samsung LED, the National Science Foundation (NSF), New York State Energy Research and Development Authority (NYSERDA), and Defense Advanced Research Projects Agency (DARPA). Sandia is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Co., for the United States Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 11 TC 21 Z9 21 U1 2 U2 12 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1862-6300 J9 PHYS STATUS SOLIDI A JI Phys. Status Solidi A-Appl. Mat. PD APR PY 2011 VL 208 IS 4 BP 947 EP 950 DI 10.1002/pssa.201026668 PG 4 WC Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 749ZX UT WOS:000289513700036 ER PT J AU Abel, T AF Abel, Tom TI The first stars, as seen by supercomputers SO PHYSICS TODAY LA English DT Article ID PRIMORDIAL GAS; UNIVERSE C1 [Abel, Tom] Stanford Univ, Stanford, CA 94305 USA. [Abel, Tom] SLAC, Stanford, CA USA. RP Abel, T (reprint author), Stanford Univ, Stanford, CA 94305 USA. NR 10 TC 3 Z9 3 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0031-9228 J9 PHYS TODAY JI Phys. Today PD APR PY 2011 VL 64 IS 4 BP 51 EP 56 PG 6 WC Physics, Multidisciplinary SC Physics GA 748NS UT WOS:000289397900017 ER PT J AU Gao, HY He, YH Shen, PZ Zou, J Xu, NP Jiang, Y Huang, BY Liu, CT AF Gao, H. Y. He, Y. H. Shen, P. Z. Zou, J. Xu, N. P. Jiang, Y. Huang, B. Y. Liu, C. T. TI Congenerous and heterogeneous brazing of porous FeAl intermetallics SO POWDER METALLURGY LA English DT Article DE Iron aluminides (based on FeAl); Brazing; Mechanical properties; Diffusion ID HIGH-TEMPERATURE CORROSION; INFRARED BRAZED FE3AL; MICROSTRUCTURAL EVOLUTION; IRON ALUMINIDE; FE-40AL SHEET; HEATING RATE; BEHAVIOR; ALLOYS AB Congenerous and heterogeneous brazing of porous FeAl intermetallics has been successfully realised using Cu-10Sn green compact as brazing filler. Cu-Sn intermetallic phases combined with (Cu,Sn) solid solution were formed in the brazing line for congenerous brazing, while (Cu, Sn) solid solution was the main phase formed for heterogeneous brazing. Maximum tensile strengths for congenerous and heterogeneous brazing are 75.0 and 83.9 MPa which are about 81.5 and 91.2% of that of porous FeAl alloy (similar to 92.0 Mpa) respectively. The interface structure of the stainless steel and porous FeAl joint brazed at 940 degrees C for 15 min is S-S+(Cu,Sn)/(Cu,Sn)/ Cu(9)Al(4)z(Cu,Fe)+(Cu,Sn)/ AlFe3+Al4Cu9+(Cu,Sn). In the porous FeAl and porous FeAl joint brazed with Cu-10Sn filler at 940 degrees C, Cu-Sn intermetallics and (Cu, Sn) solid solution were the main phases in the joint line. C1 [Gao, H. Y.; He, Y. H.; Shen, P. Z.; Zou, J.; Jiang, Y.; Huang, B. Y.] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China. [Zou, J.] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia. [Zou, J.] Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia. [Xu, N. P.] Nanjing Univ Technol, Membrane Sci & Technol Res Ctr, Nanjing 210009, Peoples R China. [Liu, C. T.] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. RP He, YH (reprint author), Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China. EM yuehui@mail.csu.edu.cn RI Zou, Jin/B-3183-2009 OI Zou, Jin/0000-0001-9435-8043 FU Chinese Ministry of Education, NSF of China [2006AA03Z511, 50825102, 50721003, 20636020]; US Department of Energy [DE-AC05-000R-22725] FX The authors are grateful for the financial support from the 111 Project of Chinese Ministry of Education, NSF of China (grant nos. 2006AA03Z511, 50825102, 50721003 and 20636020) and the US Department of Energy with subcontract to Oak Ridge National Laboratory (no. DE-AC05-000R-22725). NR 22 TC 1 Z9 1 U1 2 U2 9 PU MANEY PUBLISHING PI LEEDS PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND SN 0032-5899 EI 1743-2901 J9 POWDER METALL JI Powder Metall. PD APR PY 2011 VL 54 IS 2 BP 142 EP 147 DI 10.1179/174329009X424537 PG 6 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA 747UM UT WOS:000289345400020 ER PT J AU Kerschhaggl, M Aldering, G Antilogus, P Aragon, C Bailey, S Baltay, C Bongard, S Buton, C Canto, A Childress, M Chotard, N Copin, Y Fakhouri, HK Gangler, E Hsiao, EY Kowaiski, M Loken, S Nugent, P Paech, K Pain, R Pecontal, E Pereira, R Perlmutter, S Rabinowitz, D Runge, K Scalzo, R Smadja, G Tao, C Thomas, RC Wu, C AF Kerschhaggl, M. Aldering, G. Antilogus, P. Aragon, C. Bailey, S. Baltay, C. Bongard, S. Buton, C. Canto, A. Childress, M. Chotard, N. Copin, Y. Fakhouri, H. K. Gangler, E. Hsiao, E. Y. Kowaiski, M. Loken, S. Nugent, P. Paech, K. Pain, R. Pecontal, E. Pereira, R. Perlmutter, S. Rabinowitz, D. Runge, K. Scalzo, R. Smadja, G. Tao, C. Thomas, R. C. Wu, C. TI Cosmology with the Nearby Supernova Factory SO PROGRESS IN PARTICLE AND NUCLEAR PHYSICS LA English DT Review DE Supernovae; General-cosmology; Observations ID IA SUPERNOVAE AB The Nearby Supernova Factory (SNfactory) is currently finishing its first survey of low redshift (0.03 < z < 0.08) type la supernovae. These data add to the understanding of the expansion history of the universe. Observations are performed using the Supernova Integral Field Spectrograph (SNIFS), an integral field spectrograph delivering full spectrophotometric information of the target. The corresponding dataset aims at the inference of the Hubble diagram zero point with unprecedented accuracy. Moreover, the data offers a variety of related physical studies such as the understanding of progenitor systems, explosion scenarios and host galaxy characteristics. The SNfactory is also working on novel methods accessible with spectro-photometric measurements, reducing systematic uncertainties and improving the statistical power of the SN data. (C) 2011 Elsevier B.V. All rights reserved. C1 [Kerschhaggl, M.; Buton, C.; Kowaiski, M.; Paech, K.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany. [Aldering, G.; Aragon, C.; Bailey, S.; Childress, M.; Fakhouri, H. K.; Hsiao, E. Y.; Loken, S.; Nugent, P.; Perlmutter, S.; Runge, K.; Thomas, R. C.] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA. [Antilogus, P.; Bongard, S.; Canto, A.; Pain, R.; Wu, C.] Univ Paris, Univ Paris 06, CNRS IN2P3, Lab Phys Nucl & Hautes Energies, F-75252 Paris 05, France. [Baltay, C.; Rabinowitz, D.; Scalzo, R.] Yale Univ, Dept Phys, New Haven, CT 06250 USA. [Childress, M.; Fakhouri, H. K.; Perlmutter, S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Chotard, N.; Copin, Y.; Gangler, E.; Pereira, R.; Smadja, G.] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France. [Nugent, P.; Thomas, R. C.] Lawrence Berkeley Natl Lab, Computat Res Div, Computat Cosmol Ctr, Berkeley, CA 94611 USA. [Pecontal, E.] Univ Lyon 1, Ctr Rech Astron Lyon, F-69561 St Genis Laval, France. [Tao, C.] CPPM, F-13288 Marseille 09, France. [Tao, C.] Tsinghua U, THCA, Beijing, Peoples R China. RP Kerschhaggl, M (reprint author), Univ Bonn, Inst Phys, Nussallee 12, D-53115 Bonn, Germany. EM mkersch@physik.uni-bonn.de RI Copin, Yannick/B-4928-2015; Perlmutter, Saul/I-3505-2015; OI Copin, Yannick/0000-0002-5317-7518; Perlmutter, Saul/0000-0002-4436-4661; Scalzo, Richard/0000-0003-3740-1214 NR 14 TC 1 Z9 1 U1 2 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0146-6410 J9 PROG PART NUCL PHYS JI Prog. Part. Nucl. Phys. PD APR PY 2011 VL 66 IS 2 BP 335 EP 339 DI 10.1016/j.ppnp.2011.01.030 PG 5 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 751ES UT WOS:000289600900026 ER PT J AU Steffey, RW Anantatmula, VS AF Steffey, Robert W. Anantatmula, Vittal S. TI International Projects Proposal Analysis: Risk Assessment Using Radial Maps SO PROJECT MANAGEMENT JOURNAL LA English DT Article DE international project; multinational; collaborative; virtual team; risk; radial risk mapping ID CONSTRUCTION JOINT VENTURES; MANAGEMENT AB International projects are very attractive to companies seeking to expand their business horizons, and collaborative networks of international partners have created new work environments that differ from the conventional business structures of the past. This study provides scholarly research into the risks that inherently affect an international project's success and provides insight into the effective measures that project managers may employ to assist in analyzing and mitigating these multinational risks during the bid and proposal process. A new method of radial risk mapping assists management in graphing their risk findings to aid in their proposal analysis. These graphical representations provide firms seeking international markets with a method for selecting those projects with the least risk, thereby increasing their chances of success and maximum profit. C1 [Steffey, Robert W.] UT Battelle, Oak Ridge Natl Labs, Oak Ridge, TN USA. [Anantatmula, Vittal S.] Western Carolina Univ, Cullowhee, NC 28723 USA. RP Steffey, RW (reprint author), UT Battelle, Oak Ridge Natl Labs, Oak Ridge, TN USA. EM vittal@email.wcu.edu NR 56 TC 4 Z9 5 U1 0 U2 17 PU WILEY PERIODICALS, INC PI SAN FRANCISCO PA ONE MONTGOMERY ST, SUITE 1200, SAN FRANCISCO, CA 94104 USA SN 8756-9728 EI 1938-9507 J9 PROJ MANAG J JI Proj. Manag. J. PD APR PY 2011 VL 42 IS 3 BP 62 EP 74 DI 10.1002/pmj.20237 PG 13 WC Management SC Business & Economics GA 746SO UT WOS:000289267700005 ER PT J AU Molinari, AJ Pozzi, ECC Hughes, AM Heber, EM Garabalino, MA Thorp, SI Miller, M Itoiz, ME Aromando, RF Nigg, DW Quintana, J Santa Cruz, GA Trivillin, VA Schwint, AE AF Molinari, Ana J. Pozzi, Emiliano C. C. Hughes, Andrea Monti Heber, Elisa M. Garabalino, Marcela A. Thorp, Silvia I. Miller, Marcelo Itoiz, Maria E. Aromando, Romina F. Nigg, David W. Quintana, Jorge Santa Cruz, Gustavo A. Trivillin, Veronica A. Schwint, Amanda E. TI "Sequential" Boron Neutron Capture Therapy (BNCT): A Novel Approach to BNCT for the Treatment of Oral Cancer in the Hamster Cheek Pouch Model SO RADIATION RESEARCH LA English DT Article ID NECK MALIGNANCIES; RECURRENT HEAD; TIME FACTOR; RADIATION; TUMORS; RADIOBIOLOGY; REPOPULATION; CARCINOMA; MUCOSITIS; FACILITY AB Molinari, A. J., Pozzi, E. C. C., Monti Hughes, A., Heber, E. M., Garabalino, M. A., Thorp, S. I., Miller, M., Itoiz, M. E., Aromando, R. F., Nigg, D. W., Quintana, J., Santa Cruz, G. A., Trivillin, V. A. and Schwint, A. E. "Sequential" Boron Neutron Capture Therapy (BNCT): A Novel Approach to BNCT for the Treatment of Oral Cancer in the Hamster Cheek Pouch Model. Radiat. Res. 175, 463-472 (2011). In the present study the therapeutic effect and potential toxicity of the novel "Sequential" boron neutron capture therapy (Seq-BNCT) for the treatment of oral cancer was evaluated in the hamster cheek pouch model at the RA-3 Nuclear Reactor. Two groups of animals were treated with "Sequential" BNCT, i.e., BNCT mediated by boronophenylalanine (BPA) followed by BNCT mediated by sodium decahydrodecaborate (GB-10) either 24 h (Seq-24h-BNCT) or 48 h (Seq-48h-BNCT) later. In an additional group of animals, BPA and GB-10 were administered concomitantly [(BPA + GB-10)-BNCT]. The single-application BNCT was to the same total physical tumor dose as the "Sequential" BNCT treatments. At 28 days post-treatment, Seq-24h-BNCT and Seq-48h-BNCT induced, respectively, overall tumor responses of 95 +/- 2% and 91 +/- 3%, with no statistically significant differences between protocols. Overall response for the single treatment with (BPA + GB-10)-BNCT was 75 +/- 5%, significantly lower than for Seq-BNCT. Both Seq-BNCT protocols and (BPA + GB-10)-BNCT induced reversible mucositis in the dose-limiting precancerous tissue around treated tumors, reaching Grade 3/4 mucositis in 47 +/- 12% and 60 +/- 22% of the animals, respectively. No normal tissue toxicity was associated with tumor response for any of the protocols. "Sequential" BNCT enhanced tumor response without an increase in mucositis in dose-limiting precancerous tissue. (C) 2011 by Radiation Research Society C1 [Molinari, Ana J.; Pozzi, Emiliano C. C.; Hughes, Andrea Monti; Heber, Elisa M.; Garabalino, Marcela A.; Itoiz, Maria E.; Trivillin, Veronica A.; Schwint, Amanda E.] Natl Atom Energy Commiss, Dept Radiobiol, Constituyentes Atom Ctr, San Martin, Buenos Aires, Argentina. [Thorp, Silvia I.; Miller, Marcelo; Santa Cruz, Gustavo A.] Natl Atom Energy Commiss, Ezeiza Atom Ctr, Instrumentat & Control Dept, San Martin, Buenos Aires, Argentina. [Itoiz, Maria E.; Aromando, Romina F.] Univ Buenos Aires, Fac Dent, Dept Oral Pathol, RA-1053 Buenos Aires, DF, Argentina. [Nigg, David W.] Idaho Natl Lab, Idaho Falls, ID USA. RP Schwint, AE (reprint author), Natl Atom Energy Commiss, Dept Radiobiol, Constituyentes Atom Ctr, Ave Gen Paz 1499,B1650Kna, San Martin, Buenos Aires, Argentina. EM schwint@cnea.gov.ar FU U.S. Department of Energy through the Idaho National Laboratory; National Agency for the Promotion of Science and Technology of Argentina FX This study was supported in part by in-kind contributions from the U.S. Department of Energy through the Idaho National Laboratory and a grant from the National Agency for the Promotion of Science and Technology of Argentina. The authors wish to acknowledge enlightening discussions with Prof. John Hopewell on the choice of the interval between applications in the "Sequential" protocols and the helpful advice of Dr. Salvador Gil in data processing. The authors gratefully acknowledge the generous and expert collaboration of Eng. Agustina Portu and Dr. Giselle Saint-Martin in complementary neutron autoradiography studies. AMH, VaAT and AES are members of the National Research Council of Argentina (CONICET). NR 48 TC 18 Z9 18 U1 0 U2 4 PU RADIATION RESEARCH SOC PI LAWRENCE PA 810 E TENTH STREET, LAWRENCE, KS 66044 USA SN 0033-7587 EI 1938-5404 J9 RADIAT RES JI Radiat. Res. PD APR PY 2011 VL 175 IS 4 BP 463 EP 472 DI 10.1667/RR2148.1 PG 10 WC Biology; Biophysics; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Biophysics; Radiology, Nuclear Medicine & Medical Imaging GA 747KP UT WOS:000289319000007 PM 21294607 ER PT J AU Guo, ZS Liu, DA Wang, C Pei, JA Zhou, ZL Zhao, LH Gibson, G Brug, J Lam, S Mao, SS AF Guo ZengShan Liu DeAng Wang Cheng Pei Jian Zhou ZhangLin Zhao LiHua Gibson, Gary Brug, James Lam, Sity Mao, Samuel S. TI Phosphine oxide-functionalized polyfluorene derivatives: Synthesis, photophysics, electrochemical properties, and electroluminescence performance SO SCIENCE CHINA-CHEMISTRY LA English DT Article DE organic light-emitting diodes; polyfluorene derivatives; electroluminescence ID LIGHT-EMITTING-DIODES; SOLUBLE CONJUGATED POLYMERS; THIN-FILM TRANSISTORS; POLARIZED ELECTROLUMINESCENCE; FLUORENONE DEFECTS; HIGH-EFFICIENCY; BLUE EMISSION; CELLS; POLY(9,9-DIOCTYLFLUORENE); HETEROJUNCTIONS AB A series of phosphine oxide-functionalized polyfluorene derivatives, PFH-PO-40-1 (P1), PFH-PO-20-1 (P2), PFH-PO-10-1 (P3), and PFH-PO-1-1 (P4), were prepared via a palladium-mediated Suzuki cross-coupling reaction. The structures and purities of all polymers were fully characterized by (1)H and (13)C NMR, UV-vis and photoluminescent spectroscopy, gel permeation chromatography, and TGA/DSC. Their emission features showed single broad peaks at about 445 nm in film, compared with those in dilute solutions, which might be caused by some degree of aggregation in the excited states of the backbones. The best electroluminescence (EL) performance of these polymers with configuration of ITO/PEDOT:PSS/Polymer/Alq(3)/LiF/Al was obtained from P1 (current efficiency was 4.2 Cd/A at 6V). C1 [Guo ZengShan; Wang Cheng; Pei Jian] Peking Univ, Coll Chem & Mol Engn, Key Lab Bioorgan Chem & Mol Engn, Minist Educ, Beijing 100871, Peoples R China. [Zhou ZhangLin; Zhao LiHua; Gibson, Gary; Brug, James; Lam, Sity] Hewlett Packard Corp, Informat Surfaces Lab, Hewlett Packard Labs, Palo Alto, CA 94304 USA. [Liu DeAng; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Liu DeAng; Mao, Samuel S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. RP Pei, JA (reprint author), Peking Univ, Coll Chem & Mol Engn, Key Lab Bioorgan Chem & Mol Engn, Minist Educ, Beijing 100871, Peoples R China. EM jianpei@pku.edu.cn; zhang-lin.zhou@hp.com; ssmao@newton.berkeley.edu FU National Basic Research Program of China [2006CB921602, 2009CB623601]; National Natural Science Foundation of China; Hewlett Packard Company FX This work was supported by the National Basic Research Program of China (2006CB921602 and 2009CB623601) and National Natural Science Foundation of China, and Hewlett Packard Company. NR 44 TC 2 Z9 2 U1 2 U2 25 PU SCIENCE CHINA PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA SN 1674-7291 J9 SCI CHINA CHEM JI Sci. China-Chem. PD APR PY 2011 VL 54 IS 4 BP 678 EP 684 DI 10.1007/s11426-011-4249-3 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA 747DB UT WOS:000289299400017 ER PT J AU Jin, LX Rother, G Cole, DR Mildner, DFR Duffy, CJ Brantley, SL AF Jin, Lixin Rother, Gernot Cole, David R. Mildner, David F. R. Duffy, Christopher J. Brantley, Susan L. TI Characterization of deep weathering and nanoporosity development in shale-A neutron study SO AMERICAN MINERALOGIST LA English DT Article DE SANS/USANS; regolith; porosity; fractal dimension; clay minerals; surface area ID SMALL-ANGLE SCATTERING; LUQUILLO MOUNTAINS; SEDIMENTARY-ROCKS; FRACTAL GEOMETRY; SOIL PRODUCTION; VOLCANIC-ROCKS; MASS-TRANSFER; EROSION RATE; PUERTO-RICO; MODEL AB We used small-angle and ultra-small-angle neutron scattering (SANS/USANS) to characterize the evolution of nanoscale features in weathering Rose Hill shale within the Susquehanna/Shale Hills Observatory (SSHO). The SANS/USANS techniques, here referred to as neutron scattering (NS), characterize porosity comprised of features ranging from approximately 3 nm to several micrometers in dimension. NS was used to investigate shale chips sampled by gas-powered drilling ("saprock") or by hand-augering ("regolith") at ridgetop. At about 20 m depth, dissolution is inferred to have depleted the bedrock of ankerite and all the chips investigated with NS are from above the ankerite dissolution zone. NS documents that 5-6% of the total ankerite-free rock volume is comprised of isolated, intraparticle pores. At 5 m depth, an abrupt increase in porosity and surface area corresponds with onset of feldspar dissolution in the saprock and is attributed mainly to pen-glacial processes from 1 5 000 years ago. At tens of centimeters below the saprock-regolith interface, the porosity and surface area increase markedly as chlorite and illite begin to dissolve. These clay reactions contribute to the transformation of saprock to regolith. Throughout the regolith, intraparticle pores in chips connect to form larger interparticle pores and scattering changes from a mass fractal at depth to a surface fractal near the land surface. Pore geometry also changes from anisotropic at depth, perhaps related to pencil cleavage created in the rock by previous tectonic activity, to isotropic at the uppermost surface as clays weather. In the most weathered regolith, kaolinite and Fe-oxyhydroxides precipitate, blocking some connected pores. These precipitates, coupled with exposure of more quartz by clay weathering, contribute to the decreased mineral-pore interfacial area in the uppermost samples. These observations are consistent with conversion of bedrock to saprock to regolith at SSHO due to: (I) transport of reactants (e.g., water, O-2) into primary pores and fractures created by tectonic events and pen-glacial effects; (2) mineral-water reactions and particle loss that increase porosity and the access of water into the rock. From deep to shallow, mineral-water reactions may change from largely transport-limited where porosity was set largely by ancient tectonic activity to kinetic-limited where porosity is changing due to climate-driven processes. C1 [Jin, Lixin; Brantley, Susan L.] Penn State Univ, Ctr Environm Kinet Anal, Earth & Environm Syst Inst, University Pk, PA 16803 USA. [Rother, Gernot; Cole, David R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Cole, David R.] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. [Duffy, Christopher J.] Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16803 USA. RP Jin, LX (reprint author), Penn State Univ, Ctr Environm Kinet Anal, Earth & Environm Syst Inst, University Pk, PA 16803 USA. EM luj10@psu.edu RI Sanders, Susan/G-1957-2011; Rother, Gernot/B-7281-2008 OI Rother, Gernot/0000-0003-4921-6294 FU National Science Foundation [DMR-0454672]; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC05-00OR22725]; NSF [CHE-0431328, EAR-0725019] FX We acknowledge instrumentation and technical support at NCNR-NIST from Andrew Jackson and Rick Paul. John Cantolina at Material Characterization Laboratory at the Pennsylvania State University helped with SEM and Larry Allard at ORNL with TEM. Waleska Castro and Tiffany Yesavage helped with ferrous iron titration. This work utilized facilities supported in part by the National Science Foundation under Agreement No. DMR-0454672. We acknowledge the support of the National Institute of Standards and Technology, U.S. Department of Commerce, in providing the neutron research facilities used in this work. The identification of commercial products is for adequate description of the experimental facilities and procedures, and does not imply recommendations or endorsement by the National Institute of Standards and Technology, nor does it imply that the equipment is necessarily the best available for the purpose. G. R. and D.R.C. are supported from the U.S. Department of Energy, Office of Basic Energy Sciences through "Structure and Dynamics of Earth Materials, Interfaces, and Reactions" (FWP ERKCC72) under contract DE-AC05-00OR22725 to Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. L.J. and S.L.B. acknowledge funding front NSF CHE-0431328 (PI: S. Brantley) for support for the Environmental Molecular Sciences Institute at Penn State (Center for Environmental Kinetics Analysis) and from NSF EAR-0725019 (PI: C. Duffy, Penn State) for the Susquehanna/Shale Hills Critical Zone Observatory. Logistical support was provided by the NSF-supported Shale Hills Susquehanna Critical Zone Observatory. We thank Steven Higgins for editorial handling and Alain Meunier and another anonymous reviewer for comments, which greatly improved this work. NR 78 TC 40 Z9 41 U1 4 U2 48 PU MINERALOGICAL SOC AMER PI CHANTILLY PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA SN 0003-004X J9 AM MINERAL JI Am. Miner. PD APR PY 2011 VL 96 IS 4 BP 498 EP 512 DI 10.2138/am.2011.3598 PG 15 WC Geochemistry & Geophysics; Mineralogy SC Geochemistry & Geophysics; Mineralogy GA 744XR UT WOS:000289129000004 ER PT J AU Xu, WQ Hausner, DB Harrington, R Lee, PL Strongin, DR Parise, JB AF Xu, Wenqian Hausner, Douglas B. Harrington, Richard Lee, Peter L. Strongin, Daniel R. Parise, John B. TI Structural water in ferrihydrite and constraints this provides on possible structure models SO AMERICAN MINERALOGIST LA English DT Article DE Ferrihydrite; hydrous ferric oxide; hydroxyl; hematite; goethite; pair distribution function; PDF analysis; tetrahedral iron in ferrihydrite ID PAIR DISTRIBUTION FUNCTION; X-RAY-DIFFRACTION; NANOCRYSTALLINE MATERIAL; SYNTHETIC FERRIHYDRITE; 6-LINE FERRIHYDRITE; SURFACE-AREA; OXYHYDROXIDE; CONSTITUTION; SPECTROSCOPY; REFINEMENT AB The dry thermal transformation of 2-line ferrihydrite to hematite was investigated using combinations of thermogravimetric (TG) and differential scanning calorimetric (DSC) analysis, along with in situ DSC and pair distribution function (PDF) analysis of X-ray total scattering data and in situ temperature controlled infrared (IR) spectroscopy. TG data show a 25.6 +/- 0.1% weight loss below 300 degrees C, ascribed to the removal of surface water since PDF analysis shows no change in the structure of ferrihydrite up to this temperature. The transformation to hematite occurs at around 415 +/- 1 degrees C (peak temperature) at a heating rate of 10 degrees C/min, with no obvious weight change during or after the transformation. In situ PDF analysis indicates that the ferrihydrite bulk structure remained intact up to the direct transition to crystalline hematite, with no intermediate phases, crystalline or amorphous, formed. In situ IR data shows the extent of absorption attributable to OH stretching in ferrihydrite at 215 degrees C dropped to 10% of its room-temperature value. These results suggest ferrihydrite contains very little structural OH: the molar ratio of OH/Fe is 0.18 +/- 0.01. A recently proposed akdalaite-like ferrihydrite model has an OH/Fe equal to 0.2, consistent with this result. The 3-phase model proposed by Drits et al. (1993) has an average formula close to FeOOH, with an OH/Fe equal to 1.0, far more than suggested by our experiments. Based on the constraints set by the estimated water content and the PDF signatures, we examined possible anion packing types and local structural motifs in ferrihydrite, and demonstrate that ABAC is the only feasible packing type and that a peak at 3.44(2) angstrom in PDF provides indirect evidence for the presence of tetrahedral Fe. C1 [Xu, Wenqian; Harrington, Richard; Parise, John B.] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA. [Hausner, Douglas B.; Strongin, Daniel R.] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA. [Hausner, Douglas B.] Rutgers State Univ, Dept Chem, Camden, NJ 08102 USA. [Lee, Peter L.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Harrington, Richard; Parise, John B.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. RP Xu, WQ (reprint author), SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA. EM john.parise@stonybrook.edu RI Xu, Wenqian/M-5906-2013 FU NASA [MFRP07-0022]; National Science Foundation (NSF) [CHE0714183]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX Wenqian Xu and John B. Parise appreciate support from NASA Grant MFRP07-0022. The authors appreciate financial support from the National Science Foundation (NSF) through Collaborative Research in Chemistry (CRC), grant number CHE0714183. High-energy XRD measurements were performed at X-ray Operation and Research (XOR) beamline 1-ID-C at the Advanced Photon Source, Argonne National Laboratory. Work at APS was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract no. DE-AC02-06CH11357. NR 39 TC 30 Z9 30 U1 4 U2 58 PU MINERALOGICAL SOC AMER PI CHANTILLY PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA SN 0003-004X J9 AM MINERAL JI Am. Miner. PD APR PY 2011 VL 96 IS 4 BP 513 EP 520 DI 10.2138/am.2011.3460 PG 8 WC Geochemistry & Geophysics; Mineralogy SC Geochemistry & Geophysics; Mineralogy GA 744XR UT WOS:000289129000005 ER PT J AU Best, M Koenig, K McDonald, K Schueller, M Rogers, A Ferrieri, RA AF Best, Marcel Koenig, Kaitlyn McDonald, Kelly Schueller, Michael Rogers, Alistair Ferrieri, Richard A. TI Inhibition of trehalose breakdown increases new carbon partitioning into cellulosic biomass in Nicotiana tabacum SO CARBOHYDRATE RESEARCH LA English DT Article DE [C-11]Cellulose; [C-11]Hemicellulose; Metabolism; Trehalose; Trehalase; Validamycin ID DEVELOPING COTTON FIBERS; TREHALOSE-6-PHOSPHATE SYNTHASE; SACCHAROMYCES-CEREVISIAE; MOLECULAR-CLONING; PLANT DEVELOPMENT; ABIOTIC STRESS; UDP-GLUCOSE; METABOLISM; ARABIDOPSIS; ACCUMULATION AB Validamycin A was used to inhibit in vivo trehalase activity in tobacco enabling the study of subsequent changes in new C partitioning into cellulosic biomass and lignin precursors. After 12-h exposure to treatment, plants were pulse labeled using radioactive (CO2)-C-11, and the partitioning of isotope was traced into [C-11]cellulose and [C-11]hemicellulose, as well as into [C-11]phenylalanine, the precursor for lignin. Over this time course of treatment, new carbon partitioning into hemicellulose and cellulose was increased, while new carbon partitioning into phenylalanine was decreased. This trend was accompanied by a decrease in phenylalanine ammonia-lyase activity. After 4 d of exposure to validamycin A, we also measured leaf protein content and key C and N metabolite pools. Extended treatment increased foliar cellulose and starch content, decreased sucrose, and total amino acid and nitrate content, and had no effect on total protein. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Rogers, Alistair] Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA. [Schueller, Michael; Ferrieri, Richard A.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. [Best, Marcel] Johannes Gutenberg Univ Mainz, Fachbereich Chem, D-55099 Mainz, Germany. [Koenig, Kaitlyn] Quinnipiac Univ, Hamden, CT 06518 USA. [McDonald, Kelly] Marist Coll, Poughkeepsie, NY 12601 USA. [Rogers, Alistair] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. RP Ferrieri, RA (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. EM rferrieri@bnl.gov RI Rogers, Alistair/E-1177-2011 OI Rogers, Alistair/0000-0001-9262-7430 FU US Department of Energy's Office of Biological and Environmental Science [DE-AC02-98CH10886]; US Department of Energy; Deutscher Akademischer Austauschdienst, Bonn; Graduate Research Environmental Fellowship FX This research was supported by the US Department of Energy's Office of Biological and Environmental Science under contract DE-AC02-98CH10886, the US Department of Energy's Pre-Service Teacher program and the Graduate Research Environmental Fellowship program and the Deutscher Akademischer Austauschdienst, Bonn. NR 38 TC 5 Z9 6 U1 2 U2 12 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0008-6215 J9 CARBOHYD RES JI Carbohydr. Res. PD APR 1 PY 2011 VL 346 IS 5 BP 595 EP 601 DI 10.1016/j.carres.2011.01.018 PG 7 WC Biochemistry & Molecular Biology; Chemistry, Applied; Chemistry, Organic SC Biochemistry & Molecular Biology; Chemistry GA 744VP UT WOS:000289123600009 PM 21333278 ER PT J AU Huang, YL Xu, S Lin, VSY AF Huang, Yulin Xu, Shu Lin, Victor S. -Y. TI New Strategy for Enantioselective Heterogeneous Catalysis: Immobilization of both Metal Nanoparticles and Chiral Modifiers on Mesoporous Silica Nanoparticles SO CHEMCATCHEM LA English DT Article DE enantioselective; heterogeneous; immobilization; mesoporous silica; nanoparticle ID ATR-IR SPECTROSCOPY; ETHYL PYRUVATE; CINCHONIDINE ADSORPTION; ORGANIC FUNCTIONALIZATION; ASYMMETRIC HYDROGENATION; PLATINUM CLUSTERS; ALPHA-KETOESTERS; SURFACES; RHODIUM; CONDENSATION C1 [Huang, Yulin; Xu, Shu; Lin, Victor S. -Y.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Huang, Yulin; Xu, Shu; Lin, Victor S. -Y.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. RP Huang, YL (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM ylhuang@iastate.edu FU U.S. DOE, office of BES [DE-FG26-0NT08854] FX This research was supported at Ames Laboratory by the U.S. DOE, office of BES, under contract No. DE-FG26-0NT08854. NR 63 TC 13 Z9 13 U1 3 U2 34 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1867-3880 J9 CHEMCATCHEM JI ChemCatChem PD APR PY 2011 VL 3 IS 4 BP 690 EP 694 DI 10.1002/cctc.201000363 PG 5 WC Chemistry, Physical SC Chemistry GA 746PM UT WOS:000289259200013 ER PT J AU Cao, B Shi, LA Brown, RN Xiong, YJ Fredrickson, JK Romine, MF Marshall, MJ Lipton, MS Beyenal, H AF Cao, Bin Shi, Liang Brown, Roslyn N. Xiong, Yijia Fredrickson, Jim K. Romine, Margaret F. Marshall, Matthew J. Lipton, Mary S. Beyenal, Haluk TI Extracellular polymeric substances from Shewanella sp HRCR-1 biofilms: characterization by infrared spectroscopy and proteomics SO ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID OUTER-MEMBRANE CYTOCHROMES; C-TYPE CYTOCHROME; IRON-REDUCING BACTERIUM; LARGE SECRETED PROTEIN; ONEIDENSIS MR-1; ELECTRON-TRANSFER; GEOBACTER-SULFURREDUCENS; PSEUDOMONAS-AERUGINOSA; ESCHERICHIA-COLI; SURFACE PROTEIN AB P>The composition of extracellular polymeric substances (EPS) from Shewanella sp. HRCR-1 biofilms was investigated using infrared spectroscopy and proteomics to provide insight into potential ecophysiological functions and redox activity of the EPS. Both bound and loosely associated EPS were extracted from Shewanella sp. HRCR-1 biofilms prepared using a hollow-fibre membrane biofilm reactor. Fourier transform infrared spectra revealed the presence of proteins, polysaccharides, nucleic acids, membrane lipids and fatty acids in the EPS fractions. Using a global proteomic approach, a total of 58 extracellular and outer membrane proteins were identified in the EPS. These included homologues of multiple Shewanella oneidensis MR-1 proteins that potentially contribute to key physiological biofilm processes, such as biofilm-promoting protein BpfA, surface-associated serine protease, nucleotidases (CpdB and UshA), an extracellular lipase, and oligopeptidases (PtrB and a M13 family oligopeptidase lipoprotein). In addition, 20 redox proteins were found in extracted EPS. Among the detected redox proteins were the homologues of two S. oneidensis MR-1 c-type cytochromes, MtrC and OmcA, which have been implicated in extracellular electron transfer. Given their detection in the EPS of Shewanella sp. HRCR-1 biofilms, c-type cytochromes may contribute to the possible redox activity of the biofilm matrix and play important roles in extracellular electron transfer reactions. C1 [Cao, Bin; Beyenal, Haluk] Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. [Cao, Bin; Beyenal, Haluk] Washington State Univ, CESAR, Pullman, WA 99164 USA. [Shi, Liang; Brown, Roslyn N.; Xiong, Yijia; Fredrickson, Jim K.; Romine, Margaret F.; Marshall, Matthew J.; Lipton, Mary S.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Beyenal, H (reprint author), Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. EM beyenal@wsu.edu RI Cao, Bin/H-2639-2012; OI Cao, Bin/0000-0002-9462-496X; Romine, Margaret/0000-0002-0968-7641; Marshall, Matthew J/0000-0002-2402-8003 FU U.S. DOE Office of Biological and Environmental Research [DE-FG92-08ER64560]; Pacific Northwest National Laboratory (PNNL); U.S. Department of Energy Office of Biological and Environmental Research (DOE/BER); Battelle Memorial Institute [DE-AC05-76RLO1830] FX We thank Sara Belchik for her generous assistance in protein analyses. The authors also acknowledge Christina Bilskis for her help with confocal microscopy. The research was supported by the U.S. DOE Office of Biological and Environmental Research under the Subsurface Biogeochemistry Research (SBR) Program (Grant DE-FG92-08ER64560) and the Pacific Northwest National Laboratory (PNNL) SBR Scientific Focus Area (SFA). Proteomic analysis was supported by the U.S. Department of Energy Office of Biological and Environmental Research (DOE/BER) Genomic Science program at the PNNL. Proteomic analyses were performed in the Environmental Molecular Sciences Laboratory, a DOE/BER national scientific user facility at the PNNL campus in Richland, WA. Pacific Northwest National Laboratory is operated for the DOE by Battelle Memorial Institute under Contract DE-AC05-76RLO1830. NR 98 TC 83 Z9 86 U1 9 U2 118 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1462-2912 J9 ENVIRON MICROBIOL JI Environ. Microbiol. PD APR PY 2011 VL 13 IS 4 BP 1018 EP 1031 DI 10.1111/j.1462-2920.2010.02407.x PG 14 WC Microbiology SC Microbiology GA 744TF UT WOS:000289116700015 PM 21251176 ER PT J AU Yelle, DJ Wei, DS Ralph, J Hammel, KE AF Yelle, Daniel J. Wei, Dongsheng Ralph, John Hammel, Kenneth E. TI Multidimensional NMR analysis reveals truncated lignin structures in wood decayed by the brown rot basidiomycete Postia placenta SO ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID SOLUTION-STATE NMR; PLANT-CELL WALLS; FUNGUS; DEGRADATION; CLEAVAGE; BIODEGRADATION; MECHANISM; OXIDATION; CELLULOSE; SPRUCE AB P>Lignocellulose biodegradation, an essential step in terrestrial carbon cycling, generally involves removal of the recalcitrant lignin barrier that otherwise prevents infiltration by microbial polysaccharide hydrolases. However, fungi that cause brown rot of wood, a major route for biomass recycling in coniferous forests, utilize wood polysaccharides efficiently while removing little of the lignin. The mechanism by which these basidiomycetes breach the lignin remains unclear. We used recently developed methods for solubilization and multidimensional 1H-13C solution-state NMR spectroscopy of ball-milled lignocellulose to analyse aspen wood degraded by Postia placenta. The results showed that decay decreased the content of the principal arylglycerol-beta-aryl ether interunit linkage in the lignin by more than half, while increasing the frequency of several truncated lignin structures roughly fourfold over the level found in sound aspen. These new end-groups, consisting of benzaldehydes, benzoic acids and phenylglycerols, accounted for 6-7% of all original lignin subunits. Our results provide evidence that brown rot by P. placenta results in significant ligninolysis, which might enable infiltration of the wood by polysaccharide hydrolases even though the partially degraded lignin remains in situ. Recent work has revealed that the P. placenta genome encodes no ligninolytic peroxidases, but has also shown that this fungus produces an extracellular Fenton system. It is accordingly likely that P. placenta employs electrophilic reactive oxygen species such as hydroxyl radicals to disrupt lignin in wood. C1 [Yelle, Daniel J.; Wei, Dongsheng; Hammel, Kenneth E.] USDA, Forest Prod Lab, Madison, WI 53726 USA. [Wei, Dongsheng] Nankai Univ, Dept Microbiol, Tianjin 300071, Peoples R China. [Ralph, John] Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA. [Ralph, John] Univ Wisconsin, DOE Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. [Hammel, Kenneth E.] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA. RP Hammel, KE (reprint author), USDA, Forest Prod Lab, Madison, WI 53726 USA. EM kehammel@wisc.edu RI Hammel, Kenneth/G-1890-2011 OI Hammel, Kenneth/0000-0002-2935-5847 FU US Department of Energy Office of Science, Biological Environmental Research [BER-DE-AI02-07ER64480]; US Department of Energy, Los Alamos National Laboratory [DE-AI32-08NA28543]; US Department of Energy Office of Science, Great Lakes Bioenergy Research Center [BER-DE-FC02-07ER64494] FX We thank Fred Matt for chemical analyses of wood, Robert Blanchette for advice on how to grow P. placenta on wood, and Dan Cullen and Alexander Kapich for valuable discussions. This work was funded in part by the US Department of Energy Office of Science, Biological Environmental Research (BER-DE-AI02-07ER64480, K.E.H. and J.R.), by the US Department of Energy, Los Alamos National Laboratory (DE-AI32-08NA28543, K.E.H.) and by the US Department of Energy Office of Science, Great Lakes Bioenergy Research Center (BER-DE-FC02-07ER64494, J.R.). NR 52 TC 45 Z9 46 U1 5 U2 59 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1462-2912 J9 ENVIRON MICROBIOL JI Environ. Microbiol. PD APR PY 2011 VL 13 IS 4 BP 1091 EP 1100 DI 10.1111/j.1462-2920.2010.02417.x PG 10 WC Microbiology SC Microbiology GA 744TF UT WOS:000289116700021 PM 21261800 ER PT J AU Kuhlmann, S Spinka, H Bernstein, JP Beyer, KA Gades, LM Kasprzyk, TE Miceli, A Spence, RA Talaga, R AF Kuhlmann, Stephen Spinka, Harold Bernstein, Joseph P. Beyer, Kevin A. Gades, Lisa M. Kasprzyk, Thomas E. Miceli, Antonino Spence, Richard A. Talaga, Richard TI Narrow-beam X-ray tests of CCD edge response SO EXPERIMENTAL ASTRONOMY LA English DT Article DE CCD; X-ray; Dark energy Survey AB The physical boundaries of a fully-depleted CCD can lead to distorted field lines and non-uniform response. We study this response with a beam of X-rays constrained to a width of less than one pixel (15 mu m), and a system to map the CCD response as a function of transverse position. C1 [Kuhlmann, Stephen; Spinka, Harold; Bernstein, Joseph P.; Beyer, Kevin A.; Gades, Lisa M.; Kasprzyk, Thomas E.; Miceli, Antonino; Spence, Richard A.; Talaga, Richard] Argonne Natl Lab, Lemont, IL 60439 USA. RP Kuhlmann, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA. EM kuhlmann@anl.gov FU Argonne, a U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. NR 5 TC 2 Z9 2 U1 0 U2 2 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0922-6435 J9 EXP ASTRON JI Exp. Astron. PD APR PY 2011 VL 29 IS 3 BP 135 EP 144 DI 10.1007/s10686-010-9204-3 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 746ZK UT WOS:000289289600001 ER PT J AU Fix, G Seames, WS Mann, MD Benson, SA Miller, DJ AF Fix, G. Seames, W. S. Mann, M. D. Benson, S. A. Miller, D. J. TI The effect of oxygen-to-fuel stoichiometry on coal ash fine-fragmentation mode formation mechanisms SO FUEL PROCESSING TECHNOLOGY LA English DT Article; Proceedings Paper CT International Conference on Coal Science and Technology CY OCT 26-29, 2009 CL Cape Town, SOUTH AFRICA SP NW Univ, Univ Witwatersrand DE Fine-fragmentation; Ash formation; Pulverized coal combustion; PM2.5 ID PARTICULATE AIR-POLLUTION; PARTICLE-SIZE DISTRIBUTIONS; PULVERIZED-COAL; FLY-ASH; UTILITY BOILER; COMBUSTION; MATTER AB Ash particles smaller than 2.5 mu m in diameter generated during pulverized coal combustion are difficult to capture and may pose greater harm to the environment and human health than the discharge of larger particles. Recent research efforts on coal ash formation have revealed a middle fine-fragment mode centered around 2 mu m. Formation of this middle or fine-fragment mode (FFM) is less well understood compared to larger coarse and smaller ultrafine ash. This study is part of an overall effort aimed at determining the key factors that impact the formation of FFM. This work examined the effects of oxygen-to-fuel stoichiometry (OFS). Pulverized Illinois #6 bituminous coal was combusted and the ash generated was size segregated in a Dekati low pressure inertial impactor. The mass of each fraction was measured and the ash was analyzed using scanning electron microscopy (SEM) and X-ray microanalysis. The FFM ash types were classified based on the SEM images to evaluate the significant fine-fragment ash formation mechanisms and determine any possible link between stoichiometry and formation mechanism. From the particle size distributions (PSDs), the coarse mode appears unaffected by the change in OFS, however, the OFS 1.05 lowered the fraction of ultrafine ash in relation to the higher OFS settings, and appears to increase the portion of the FFM. An intermediate minimum was found in the FFM at 13 mu m for the 1.20 and 135 OFS tests but was not observed in the 1.05 OFS. SEM analysis also suggests that OFS may contribute to changing formation mechanisms. (C) 2010 Elsevier B.V. All rights reserved. C1 [Fix, G.; Seames, W. S.; Mann, M. D.; Benson, S. A.] Univ N Dakota, Dept Chem Engn, Grand Forks, ND 58202 USA. [Miller, D. J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Miller, D. J.] Argonne Natl Lab, Ctr Electron Microscopy, Argonne, IL 60439 USA. RP Seames, WS (reprint author), Univ N Dakota, Dept Chem Engn, 241 Centennial Dr,Stop 7101, Grand Forks, ND 58202 USA. EM wayneseames@mail.und.edu NR 30 TC 7 Z9 8 U1 0 U2 12 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-3820 J9 FUEL PROCESS TECHNOL JI Fuel Process. Technol. PD APR PY 2011 VL 92 IS 4 SI SI BP 793 EP 800 DI 10.1016/j.fuproc.2010.08.012 PG 8 WC Chemistry, Applied; Energy & Fuels; Engineering, Chemical SC Chemistry; Energy & Fuels; Engineering GA 745AG UT WOS:000289135700013 ER PT J AU Boroda, R Amit, R Matmon, A Finkel, R Porat, N Enzel, Y Eyal, Y AF Boroda, R. Amit, R. Matmon, A. Finkel, R. Porat, N. Enzel, Y. Eyal, Y. CA ASTER Team TI Quaternary-scale evolution of sequences of talus flatirons in the hyperarid Negev SO GEOMORPHOLOGY LA English DT Article DE Talus flatirons; Talus deposits; Cliff retreat; Climatic change; Hyperarid desert; Slope processes; Negev; Cosmogenic nuclides; Pleistocene ID FINE-GRAINED QUARTZ; EXPOSURE AGES; CHINESE LOESS; REG SOILS; DESERT; RATES; EROSION; BE-10; ESCARPMENT; ISRAEL AB Talus flatiron sequences are ubiquitous landforms in arid and semiarid regions characterized by horizontal erodible rocks capped by more resistant rocks. Alternating phases of deposition and erosion lead to the formation of generations of talus flatirons in which ancient ones are located farther from the source cliff. The existing conceptual model of this systematic spatial distribution of talus flatirons is related to glacial-interglacial climatic cycles and to relatively high rates of cliff retreat. Three groups of talus flatirons were analyzed in the northeastern hyperarid Negev desert. The analyses include mapping, age determination using optically stimulated luminescence and cosmogenic nuclide exposure dating, electrical resistivity tomography and sedimentological and soil analyses. All talus flatirons contain gypsic-salic soil catena typical to hyperarid climate (< 80 mm yr(-1)). No pedogenic indicators of past wetter environments such as buried calcic soil horizons, evidence of intense biogenic activity, or buried organic material were observed. (10)Be exposure ages of the talus flatirons suggest that they were deposited during the middle Pleistocene; similar to 610 ka and similar to 170 ka for the oldest and intermediate-aged talus flatiron groups, respectively. These ages, combined with the present location of the talus flatirons relative to the source cliff yield retreat rates of 6-12 and similar to 200 m Ma(-1) for the bedrock cliff and talus flatiron apex, respectively, and in opposite directions. Our results show that (a) climatic changes at glacial-interglacial time scales are not the main controls over the formation of talus flatiron generation, and (b) that significant cliff retreat is not the main cause for the systematic spatial distribution of talus flatiron generations relative to the cliff. Our results indicate that the process of talus flatiron formation in the Negev desert must be associated with the balance between production, deposition, and removal of clasts under hyperarid conditions with only a minor cliff retreat. (C) 2010 Elsevier B.V. All rights reserved. C1 [Boroda, R.; Eyal, Y.] Ben Gurion Univ Negev, Dept Geol & Environm Sci, IL-84105 Beer Sheva, Israel. [Boroda, R.; Amit, R.; Porat, N.] Geol Survey Israel, IL-95501 Jerusalem, Israel. [Matmon, A.; Enzel, Y.] Hebrew Univ Jerusalem, Fredy & Nadine Herrmann Inst Earth Sci, IL-91904 Jerusalem, Israel. [ASTER Team] Aix Marseille Univ, CNRS, UMR 6635, CEREGE, F-13545 Aix En Provence 4, France. [Finkel, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Boroda, R (reprint author), Ben Gurion Univ Negev, Dept Geol & Environm Sci, IL-84105 Beer Sheva, Israel. EM Boroda@bgu.ac.il FU Israel Science Foundation [146/08]; United States-Israel Binational Science Foundation [2006-221]; U.S. Army Research Office [DAAD19-03-1-0159] FX This research was supported by the Israel Science Foundation grant 146/08, the United States-Israel Binational Science Foundation grant 2006-221 and the U.S. Army Research Office grant (DAAD19-03-1-0159). We thank Y. Rephael, P. Liran, H, Etinger, Dr. E. Farber, for field assistance, Y. Nahmias, for lab assistance, N. Teutsch for performing the ICP-OES analysis, A. Boroda and B. cohen for figure editing, Dr. I. Haviv, Dr. E. Morin and Y. Amiel for fruitful discussions. Dr. V. Frid and A. Averbakh (Isotop Ltd) for geophysical investigation. We thank N. Lancaster, an anonymous reviewer and the editor T. Oguchi for their thoughtful comments that significantly improved this paper. NR 63 TC 11 Z9 11 U1 0 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-555X J9 GEOMORPHOLOGY JI Geomorphology PD APR 1 PY 2011 VL 127 IS 1-2 BP 41 EP 52 DI 10.1016/j.geomorph.2010.12.003 PG 12 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA 743WD UT WOS:000289048600004 ER PT J AU Heath, JE Dewers, TA McPherson, BJOL Petrusak, R Chidsey, TC Rinehart, AJ Mozley, PS AF Heath, Jason E. Dewers, Thomas A. McPherson, Brian J. O. L. Petrusak, Robin Chidsey, Thomas C., Jr. Rinehart, Alex J. Mozley, Peter S. TI Pore networks in continental and marine mudstones: Characteristics and controls on sealing behavior SO GEOSPHERE LA English DT Article ID RAY COMPUTED-TOMOGRAPHY; MERCURY POROSIMETRY; FLOCCULE RIPPLES; SPECTRAL IMAGES; 3D GEOMETRY; SHALE; SIZE; DEPOSITION; CAPACITY; ROCKS AB Mudstone pore networks are strong modifiers of sedimentary basin fluid dynamics and have a critical role in the distribution of hydrocarbons and containment of injected fluids. Using core samples from continental and marine mudstones, we investigate properties of pore types and networks from a variety of geologic environments, together with estimates of capillary breakthrough pressures by mercury intrusion porosimetry. Analysis and interpretation of quantitative and qualitative three-dimensional (3D) observations, obtained by dual focused ion beam-scanning electron microscopy, suggest seven dominant mudstone pore types distinguished by geometry and connectivity. A dominant planar pore type occurs in all investigated mudstones and generally has high coordination numbers (i.e., number of neighboring connected pores). Connected networks of pores of this type contribute to high mercury capillary pressures due to small pore throats at the junctions of connected pores and likely control most matrix transport in these mudstones. Other pore types are related to authigenic (e. g., replacement or pore-lining precipitation) clay minerals and pyrite nodules; pores in clay packets adjacent to larger, more competent clastic grains; pores in organic phases; and stylolitic and micro-fracture-related pores. Pores within regions of authigenic clay minerals often form small isolated networks (< 3 mu m). Pores in stringers of organic phases occur as tubular pores or slit- and/or sheet-like pores. These form short, connected lengths in 3D reconstructions, but appear to form networks no larger than a few microns in size. Sealing efficiency of the studied mudstones increases with greater distal depositional environments and greater maximum depth of burial. C1 [Heath, Jason E.] Sandia Natl Labs, Dept Geophys & Atmospher Sci, Albuquerque, NM 87815 USA. [Heath, Jason E.; Rinehart, Alex J.; Mozley, Peter S.] New Mexico Inst Min & Technol, Dept Earth & Environm Sci, Socorro, NM 87801 USA. [Dewers, Thomas A.] Sandia Natl Labs, Dept Geomech, Albuquerque, NM 87185 USA. [McPherson, Brian J. O. L.] Univ Utah, Dept Civil & Environm Engn, Salt Lake City, UT 84112 USA. [Petrusak, Robin] Adv Resources Int Inc, Arlington, VA 22203 USA. [Chidsey, Thomas C., Jr.] Utah Geol & Min Survey, Salt Lake City, UT 84114 USA. RP Heath, JE (reprint author), Sandia Natl Labs, Dept Geophys & Atmospher Sci, POB 5800,MS 0750, Albuquerque, NM 87815 USA. EM jeheath@sandia.gov FU U.S. Department of Energy (DOE) Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; mercury intrusion porosimetry (MIP) FX Focused ion beam-scanning electron microscopy (FIB-SEM) imaging and subsequent three-dimensional image analysis was funded by the U.S. Department of Energy (DOE) Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Rock samples were provided by the Southwest (SWP) and Southeast Regional Carbon Sequestration Partnerships, which are managed by the DOE National Energy Technology Laboratory. The SWP funded mercury intrusion porosimetry (MIP) analyses. We also thank the Southeast Regional Carbon Partnership and Richard Esposito of the Southern Company for making the Tuscaloosa cores from the Mississippi Power Company #1 available for viewing and core description, as well as for providing rock samples and access to core data. NR 64 TC 55 Z9 59 U1 4 U2 42 PU GEOLOGICAL SOC AMER, INC PI BOULDER PA PO BOX 9140, BOULDER, CO 80301-9140 USA SN 1553-040X J9 GEOSPHERE JI Geosphere PD APR PY 2011 VL 7 IS 2 BP 429 EP 454 DI 10.1130/GES00619.1 PG 26 WC Geosciences, Multidisciplinary SC Geology GA 743CH UT WOS:000288993400009 ER PT J AU Zhai, YH AF Zhai, Yuhu TI Eddy-Current Analysis of Cold Mass and Thermal Shield for Series-Connected Hybrid Magnet SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article DE Eddy-current analysis; magnet design; superconducting magnet AB The National High Magnetic Field Laboratory currently has three series-connected hybrid (SCH) magnet projects, where resistive coils are connected in series with superconducting coils using cable-in-conduit-conductor (CICC) underway: first for the magnet laboratory in Tallahassee, FL; second for the Helmholtz Zentrum Berlin for Materials and Energy (HZB), Germany; and the third for the Spallation Neutron Source at the Oak Ridge National Laboratory, TN. The one for HZB has a horizontal conical bore with a 30 degrees opening angle for neutron scattering experiments. During power supply trip, superconducting magnet quench, resistive insert short, and insert fault, transient electromagnetic effects as a result of fast decay of the coil current introduce a significant amount of eddy current and Lorentz force on the conductive components of the cryostat such as the metallic cold-mass magnet frame and the 50-K thermal radiation shield. Although the eddy-current heating is not a concern during quench and fault operations, the eddy-current-induced Lorentz forces need to be taken into account in the structural design of the SCH cryostat. In this paper, a detailed eddy-current analysis for the HZB magnet during abnormal operations has been performed for its cryostat based on the dry magnet design concept. The nonuniform eddy-current distribution from the finite-element analysis implies that local hot spots may develop under abnormal operations. The eddy-current-induced Lorentz forces are quantified to ensure the strength and stability of the cryostat structure and, most importantly, safety of the SCH magnet during abnormal conditions. C1 [Zhai, Yuhu] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. RP Zhai, YH (reprint author), Princeton Plasma Phys Lab, Princeton, NJ 08542 USA. EM zhai@magnet.fsu.edu FU U.S. National Science Foundation; State of Florida FX This work was supported in part by the U.S. National Science Foundation and in part by the State of Florida. NR 7 TC 3 Z9 3 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 APR PY 2011 VL 21 IS 2 BP 42 EP 47 DI 10.1109/TASC.2010.2098405 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 745HV UT WOS:000289157400001 ER PT J AU Huang, QA Wang, L Dasgupta, T Zhu, L Sekhar, PK Bhansali, S An, Y AF Huang, Qiang Wang, Li Dasgupta, Tirthankar Zhu, Li Sekhar, Praveen K. Bhansali, Shekhar An, Yu TI Statistical Weight Kinetics Modeling and Estimation for Silica Nanowire Growth Catalyzed by Pd Thin Film SO IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING LA English DT Article DE Model selection; nanomanufacturing; nanostructure growth; process modeling ID PHOTOLUMINESCENCE; TRANSITION AB This work intends to understand and model the kinetic aspect or the change of substrate weight over time in the selective growth of silica nanowires (NWs) catalyzed through Pd thin film. Various adsorption-induced, diffusion-induced, or unified vapor-liquid-solid (VLS) growth models have been developed to describe the NW length varying with time. Since NW length has been difficult to be measured, substrate weight change is therefore used as an alternative in this study to investigate growth kinetics of NWs. We investigate six different weight kinetics models in predicting weight changes during growth. Model estimation and comparison are conducted using both maximum-likelihood estimation (MLE) and Bayesian approaches. Owing to the embedded kinetics information in the nonlinear growth models, the Bayesian hierarchical model is shown to be more desirable when process data is limited. Note to Practitioners-Nanowires (NWs) have great potentials in electronic and photonic applications due to their unique properties. The repeatability of nanowire growth, however, is low and presents a major challenge for its mass production. Predictive modeling and control method is essential to the process yield and productivity improvement. The major difficulty of establishing such models is limited data and physical understanding of growth process. This paper provides a modeling approach to describe the overall NWs growth by modeling the weight changes over time in the growth of NWs. C1 [Huang, Qiang; Wang, Li] Univ So Calif, Daniel J Epstein Dept Ind & Syst Engn, Los Angeles, CA 90089 USA. [Dasgupta, Tirthankar; Zhu, Li] Harvard Univ, Dept Stat, Cambridge, MA 02138 USA. [Sekhar, Praveen K.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Bhansali, Shekhar] Univ S Florida, Dept Elect Engn, Tampa, FL 33620 USA. [An, Yu] Univ S Florida, Dept Ind Management & Syst Engn, Tampa, FL 33620 USA. RP Huang, QA (reprint author), Univ So Calif, Daniel J Epstein Dept Ind & Syst Engn, Los Angeles, CA 90089 USA. EM qiang.huang@usc.edu RI Huang, Qiang/K-4703-2014 OI Huang, Qiang/0000-0001-7826-4792 FU National Science Foundation [CMMI-0700659, CMMI-1002580] FX The work was supported in part by the National Science Foundation under Grant CMMI-0700659 and Grant CMMI-1002580. NR 20 TC 10 Z9 10 U1 1 U2 13 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1545-5955 J9 IEEE T AUTOM SCI ENG JI IEEE Trans. Autom. Sci. Eng. PD APR PY 2011 VL 8 IS 2 BP 303 EP 310 DI 10.1109/TASE.2010.2070493 PG 8 WC Automation & Control Systems SC Automation & Control Systems GA 745XM UT WOS:000289204900005 ER PT J AU Veress, AI Segars, WP Tsui, BMW Gullberg, GT AF Veress, Alexander I. Segars, W. Paul Tsui, Benjamin M. W. Gullberg, Grant T. TI Incorporation of a Left Ventricle Finite Element Model Defining Infarction Into the XCAT Imaging Phantom SO IEEE TRANSACTIONS ON MEDICAL IMAGING LA English DT Article DE Cardiac imaging research; extended cardiac-torso (XCAT); finite element; ischemia; left ventricle; mechanical model; myocardial infarction; NURBS-based cardiac-torso (NCAT); single photon emission computed tomography (SPECT) phantom ID EXPERIMENTAL MYOCARDIAL-INFARCTION; CANINE LEFT-VENTRICLE; BUNDLE-BRANCH BLOCK; SEGMENTAL MECHANICAL-BEHAVIOR; ACUTELY ISCHEMIC-MYOCARDIUM; CARDIAC LEFT-VENTRICLE; MAGNETIC-RESONANCE; BORDER ZONE; FIBER ARCHITECTURE; ACTIVE CONTRACTION AB The 4D extended cardiac-torso (XCAT) phantom was developed to provide a realistic and flexible model of the human anatomy and cardiac and respiratory motions for use in medical imaging research. A prior limitation to the phantom was that it did not accurately simulate altered functions of the heart that result from cardiac pathologies such as coronary artery disease (CAD). We overcame this limitation in a previous study by combining the phantom with a finite-element (FE) mechanical model of the left ventricle (LV) capable of more realistically simulating regional defects caused by ischemia. In the present work, we extend this model giving it the ability to accurately simulate motion abnormalities caused by myocardial infarction (MI), a far more complex situation in terms of altered mechanics compared with the modeling of acute ischemia. The FE model geometry is based on high resolution CT images of a normal male subject. An anterior region was defined as infarcted and the material properties and fiber distribution were altered, according to the bio-physiological properties of two types of infarction, i.e., fibrous and remodeled infarction (30% thinner wall than fibrous case). Compared with the original, surface-based 4D beating heart model of the XCAT, where regional abnormalities are modeled by simply scaling down the motion in those regions, the FE model was found to provide a more accurate representation of the abnormal motion of the LV due to the effects of fibrous infarction as well as depicting the motion of remodeled infarction. In particular, the FE models allow for the accurate depiction of dyskinetic motion. The average circumferential strain results were found to be consistent with measured dyskinetic experimental results. Combined with the 4D XCAT phantom, the FE model can be used to produce realistic multimodality sets of imaging data from a variety of patients in which the normal or abnormal cardiac function is accurately represented. C1 [Veress, Alexander I.] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA. [Segars, W. Paul] Duke Univ, Dept Radiol, Durham, NC 27705 USA. [Tsui, Benjamin M. W.] Johns Hopkins Univ, Dept Radiol, Baltimore, MD 21218 USA. [Gullberg, Grant T.] EO Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Veress, AI (reprint author), Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA. EM averess@u.washington.edu; paul.segars@duke.edu; btsui@jhmi.edu; gtgullberg@lbl.gov OI Veress, Alexander/0000-0002-9334-9257 FU National Institutes of Health [R01 EB00121, R01 EB07219, R01 EB00168, R01 HL091036]; Office of Science, Office of Biological and Environmental Research, Medical Sciences Division of the U.S. Department of Energy [DE-AC02-05CH11231] FX Manuscript received July 28, 2010; revised October 06, 2010; accepted October 13, 2010. Date of publication October 28, 2010; date of current version April 01, 2011. This work was supported in part by the National Institutes of Health under Grant R01 EB00121, Grant R01 EB07219, Grant R01 EB00168, Grant R01 HL091036 and in part by the Director, Office of Science, Office of Biological and Environmental Research, Medical Sciences Division of the U.S. Department of Energy under Contract DE-AC02-05CH11231. Asterisk indicates corresponding author. NR 86 TC 13 Z9 13 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0278-0062 EI 1558-254X J9 IEEE T MED IMAGING JI IEEE Trans. Med. Imaging PD APR PY 2011 VL 30 IS 4 BP 915 EP 927 DI 10.1109/TMI.2010.2089801 PG 13 WC Computer Science, Interdisciplinary Applications; Engineering, Biomedical; Engineering, Electrical & Electronic; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging SC Computer Science; Engineering; Imaging Science & Photographic Technology; Radiology, Nuclear Medicine & Medical Imaging GA 745XD UT WOS:000289204000003 PM 21041157 ER PT J AU Nair, H Gatt, JE Miller, JT Baertsch, CD AF Nair, Hari Gatt, Joseph E. Miller, Jeffrey T. Baertsch, Chelsey D. TI Mechanistic insights into the formation of acetaldehyde and diethyl ether from ethanol over supported VOx, MoOx, and WOx catalysts SO JOURNAL OF CATALYSIS LA English DT Article DE Vanadium oxide; Molybdenum oxide; Tungsten oxide; Anaerobic titration; Support effects; Ethanol oxidative dehydrogenation; Ethanol condensation; Ethanol dehydration; Reaction mechanism ID METAL-OXIDE CATALYSTS; TEMPERATURE-PROGRAMMED DESORPTION; SITU INFRARED TECHNIQUES; METHANOL OXIDATION; VANADIUM-OXIDE; MOLYBDENUM OXIDE; ACTIVE-SITES; SELECTIVE OXIDATION; RAMAN-SPECTROSCOPY; CH3OH OXIDATION AB Catalytic pathways are described for reactions of ethanol to acetaldehyde by oxidative dehydrogenation and of ethanol to diethyl ether by condensation over VOx-Al2O3, MoOx-Al2O3, and WOx-Al2O3. Isotopic labeling shows that acetaldehyde formation occurs via rate-determining C-H bond cleavage of the CH2 group in an adsorbed alkoxide followed by removal of surface oxygen in a Mars and van Krevelen redox mechanism (as confirmed by in situ X-ray absorption, diffuse reflectance infra-red Fourier transform spectroscopy and UV-visible spectroscopy); diethyl ether formation occurs in parallel via coupling and condensation of two adjacent ethoxy species. Using a combination of in situ spectroscopic and kinetic analysis, catalyst properties influencing the formation of acetaldehyde and ether from the common adsorbed ethoxy intermediate are elucidated. X-ray absorption analysis during anaerobic ethanol titration is used to preclude the involvement of terminal M=O bonds during the reaction. A study of the activity of catalysts with the same MoOx domain size on Al2O3, TiO2, and CeO2 supports and binary oxides of MoOx and WOx on Al2O3 are used to prove that the active redox oxygen for acetaldehyde formation is the oxygen atom linking the active metal oxide domain to the support oxide. Ether formation ability of the metal oxide is related to the electronegativity of the active metal atom. (C) 2011 Published by Elsevier Inc. C1 [Nair, Hari; Gatt, Joseph E.; Baertsch, Chelsey D.] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA. [Miller, Jeffrey T.] Argonne Natl Lab, CSE, Argonne, IL 60439 USA. RP Baertsch, CD (reprint author), Purdue Univ, Sch Chem Engn, 480 Stadium Mall Dr, W Lafayette, IN 47907 USA. EM baertsch@purdue.edu RI ID, MRCAT/G-7586-2011 FU NSF (CBET) [0644707]; Purdue University; American Chemical Society; Argonne National Labs GUP [8603]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Department of Energy; MRCAT member institutions FX Partial support for this work was provided by NSF (CBET Career Award #0644707) and Purdue University. H. Nair was supported by the Bilsland Dissertation Fellowship at Purdue University. Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund for partial support of this research. Synchrotron beamtime was supported by Argonne National Labs GUP #8603. The use of the Advanced Photon Source (APS) was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. Materials Research Collaborative Access Team (MRCAT, Sector 10 ID) operations are supported by the Department of Energy and the MRCAT member institutions. NR 57 TC 16 Z9 16 U1 6 U2 75 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 J9 J CATAL JI J. Catal. PD APR 1 PY 2011 VL 279 IS 1 BP 144 EP 154 DI 10.1016/j.jcat.2011.01.011 PG 11 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 744ZW UT WOS:000289134700013 ER PT J AU Henderson, MA Deskins, NA Zehr, RT Dupuis, M AF Henderson, M. A. Deskins, N. A. Zehr, R. T. Dupuis, M. TI Generation of organic radicals during photocatalytic reactions on TiO2 SO JOURNAL OF CATALYSIS LA English DT Article DE Photocatalysis; TiO2; Surface; Radicals; Photodesorption; DFT; Theory ID EXPERIMENTAL MICROKINETIC APPROACH; SURFACE ELEMENTARY STEPS; REDUCED TIO2(110); ISOPROPYL-ALCOHOL; O-2 DISSOCIATION; OXYGEN ADATOMS; OXIDATION; 2-PROPANOL; ACETONE; DEHYDROGENATION AB Using a variety of organic carbonyl molecules (R1C(O)R-2) and the rutile TiO2(1 1 0) surface as a model photocatalyst, we demonstrate both experimentally and theoretically that ejection of organic radicals from TiO2 surfaces is likely a prevalent reaction process occurring during heterogeneous photooxidation of organic molecules. Organic carbonyls react with coadsorbed oxygen species to form organic diolates which are more strongly bound to TiO2 than are the parent carbonyls. The parent carbonyls, when bound to TiO2(1 1 0) in an eta(1) configuration, are photo-inactive toward valence band holes. However, the diolates are shown to photodecompose by ejection of one of the two R substituents from the surface into the gas phase, leaving behind the carboxylate of the other R group. Theoretical calculations using DFT show that in most cases the choice of which R group is ejected can be predicted based on the C-R bond energies and, to a lesser extent, the stability of the ejected R group. (C) 2011 Elsevier Inc. All rights reserved. C1 [Henderson, M. A.; Deskins, N. A.; Zehr, R. T.; Dupuis, M.] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA. RP Henderson, MA (reprint author), Pacific NW Natl Lab, Inst Interfacial Catalysis, POB 999,MS K8-87, Richland, WA 99352 USA. EM ma.henderson@pnl.gov RI Deskins, Nathaniel/H-3954-2012 FU US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; Battelle Memorial Institute [DEAC06-76RLO1830]; Office of Biological and Environmental Research FX The authors thank Dave Dixon for his insights. Work reported here was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Pacific Northwest National Laboratory is a multiprogram national laboratory operated for the US Department of Energy by the Battelle Memorial Institute under contract DEAC06-76RLO1830. The experimental studies reported here were performed in the William R. Wiley Environmental Molecular Science Laboratory (EMSL), a Department of Energy user facility funded by the Office of Biological and Environmental Research. Computational resources were provided by the Molecular Science Computing Facility located in EMSL and the National Energy Research Scientific Computing Center in Berkeley, CA. NR 39 TC 25 Z9 25 U1 7 U2 57 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 J9 J CATAL JI J. Catal. PD APR 1 PY 2011 VL 279 IS 1 BP 205 EP 212 DI 10.1016/j.jcat.2011.01.021 PG 8 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 744ZW UT WOS:000289134700019 ER PT J AU Feng, JA Reimer, JA AF Feng, Jian Reimer, Jeffrey A. TI Suppression of probe background signals via B-1 field inhomogeneity SO JOURNAL OF MAGNETIC RESONANCE LA English DT Article DE Probe background; B-1 inhomogeneity; Dephase; Nutation frame; DEPTH ID ECHO DOUBLE-RESONANCE; SOLID-STATE NMR; SPECTROSCOPY AB A new approach combining a long pulse with the DEPTH sequence (Cory and Ritchey. Journal of Magnetic Resonance, 1988) greatly improves the efficiency for suppressing probe background signals arising from spinning modules. By applying a long initial excitation pulse in the DEPTH sequence, instead of a pi/2 pulse, the inhomogeneous B-1 fields outside the coil can dephase the background coherence in the nutation frame. The initial long pulse and the following two consecutive EXORCYCLE pi pulses function complementarily and prove most effective in removing background signals from both strong and weak B-1 fields. Experimentally, the length of the long pulse can be optimized around odd multiples of the pi/2 pulse, depending on the individual probe design, to preserve signals inside the coil while minimizing those from probe hardware. This method extends the applicability of the DEPTH sequence to probes with small differences in B-1 field strength between the inside and outside of the coil, and can readily combine with well-developed double resonance experiments for quantitative measurement. In general, spin systems with weak internal interactions are required to attain efficient and uniform excitation for powder samples, and the principles to determine the applicability are discussed qualitatively in terms of the relative strength of spin interactions, r.f power and spinning rate. (C) 2011 Elsevier Inc. All rights reserved. C1 [Feng, Jian] Univ Calif Berkeley, Dept Chem & Biomol Engn, Reimer Lab, Berkeley, CA 94720 USA. [Feng, Jian; Reimer, Jeffrey A.] Ernest Orlando Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Feng, JA (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Reimer Lab, Tan Hall,Rm D93, Berkeley, CA 94720 USA. EM jifeng@berkeley.edu 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 was 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 14 TC 5 Z9 5 U1 3 U2 17 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1090-7807 J9 J MAGN RESON JI J. Magn. Reson. PD APR PY 2011 VL 209 IS 2 BP 300 EP 305 DI 10.1016/j.jmr.2011.01.023 PG 6 WC Biochemical Research Methods; Physics, Atomic, Molecular & Chemical; Spectroscopy SC Biochemistry & Molecular Biology; Physics; Spectroscopy GA 746TP UT WOS:000289270900025 PM 21349751 ER PT J AU Carney, LT AF Carney, Laura T. TI A MULTISPECIES LABORATORY ASSESSMENT OF RAPID SPOROPHYTE RECRUITMENT FROM DELAYED KELP GAMETOPHYTES SO JOURNAL OF PHYCOLOGY LA English DT Article DE delayed development; delayed reproduction; gametophyte longevity; kelp gametophytes; Laminaria farlowii; Macrocystis pyrifera; nutrients; Pelagophycus porra; Pterygophora californica; rapid sporophyte recruitment ID MACROCYSTIS-PYRIFERA PHAEOPHYCEAE; GIANT-KELP; LAMINARIA-SACCHARINA; NATURAL COMMUNITIES; POPULATION BIOLOGY; MICROSCOPIC STAGES; BAJA-CALIFORNIA; SOUTHERN LIMIT; LARGE-SCALE; EL-NINO AB Recent work suggests that the ability to delay reproduction as resistant haploid gametophytes may be important for seaweeds that experience unpredictable disturbances or seasonal periods of poor conditions that result in adult sporophyte absence. Further, delayed gametophytes of some kelp species (order Laminariales) may produce sporophytes more rapidly than if they had never experienced a delay, conferring a competitive advantage when conditions improve or after disturbance events. Here, it was determined that the gametophytes of the canopy-forming kelp Macrocystis pyrifera (L.) C. Agardh could delay reproduction in a one- to two-cell state (< 50 mu m) for at least 7 months when grown under nutrient-limiting conditions. These stages retained reproductive viability and produced sporophytes within 5 d once nutrients were increased. This finding suggests that gametophytes could potentially promote recovery of M. pyrifera populations after extended periods of sporophyte absence. In addition, the time required for sporophyte production between gametophytes of the four most conspicuous kelp species in Southern California that had delayed reproduction and gametophytes that had not was compared. For these four kelp species, a delay of at least 30 d conferred a 40%-76% reduction in the time required for sporophyte production once nutrients were received. Fecundity did not decrease with delay duration, suggesting there is no apparent cost of delayed development for kelps as has been observed in other organisms. Thus, delayed development may be a viable strategy for surviving and initially dominating in environments with variable quality. C1 [Carney, Laura T.] San Diego State Univ, Dept Biol, San Diego, CA 92182 USA. RP Carney, LT (reprint author), Sandia Natl Labs, POB 969,MS 9671, Livermore, CA 94551 USA. EM ltcarne@sandia.gov FU Achievement Rewards for College Scientists (ARCS); SEASPACE FX Nutrient quantification was performed by L. Thurn. Statistical help was given by Y. Lu, R. Levine, and J. Byrnes. The manuscript was improved based on comments by M. Edwards, S. Williams, J. Stachowicz, and A. Bohonak. Laboratory space and equipment were provided by M. Edwards. During this work, L. T. C. was supported by grants from the Achievement Rewards for College Scientists (ARCS) and SEASPACE. NR 51 TC 8 Z9 8 U1 6 U2 22 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0022-3646 J9 J PHYCOL JI J. Phycol. PD APR PY 2011 VL 47 IS 2 BP 244 EP 251 DI 10.1111/j.1529-8817.2011.00957.x PG 8 WC Plant Sciences; Marine & Freshwater Biology SC Plant Sciences; Marine & Freshwater Biology GA 745JW UT WOS:000289162700003 PM 27021856 ER PT J AU Donni, A Kitazawa, H Strassle, T Keller, L Matsuda, M Kakurai, K Ano, G Akatsu, M Nemoto, Y Goto, T AF Doenni, Andreas Kitazawa, Hideaki Straessle, Thierry Keller, Lukas Matsuda, Masaaki Kakurai, Kazuhisa Ano, Genki Akatsu, Mitsuhiro Nemoto, Yuichi Goto, Terutaka TI Crystal Field Level Diagrams at the Pr Sites (8c) and (4a) in the Clathrate Compound Pr3Pd20Si6 SO JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN LA English DT Article DE Pr3Pd20Si6; crystal field; neutron scattering; high-field magnetization; specific heat ID NEUTRON-SCATTERING; CE3PD20SI6; DIFFRACTION; RE=LA; CE AB Inelastic neutron scattering has been employed to determine the complete crystal field (CF) level diagrams at the Pr sites (8c) and (4a) in the clathrate compound Pr3Pd20Si6 with cubic Cr23C6-type crystal structure. The splitting of the H-3(4) multiplet of Pr3+ was found to be Gamma(3) -> Gamma(5) (1.44 meV) -> Gamma(4) (4.46 meV) -> Gamma(1) (10.7 meV) at the (8c) site and Gamma(5) -> Gamma(3) (0.70 meV) -> Gamma(4) (10.8 meV) -> Gamma(1) (24.8 meV) at the (4a) site. We present additional measurements of the specific heat down to 2K and single-crystal high-field magnetization up to 28 T, and show that a calculation with no adjustable parameter based on our CF parameters can quantitatively reproduce the magnetic part of the specific heat and the magnetization curves along three cubic high-symmetry directions. We extrapolate the CF parameters obtained for Pr3Pd20Si6 to those of the isostructural compounds Ce3Pd20Si6, Nd3Pd20Si6 and Er3Pd20Si6, and compare the results with inelastic neutron scattering experiments reported in literature. For the (8c) site, the experimentally determined CF level diagrams are consistent and in good agreement with the extrapolation. In contrast, for the (4a) site, the few available experimental results are inconsistent and in poor agreement with the extrapolation. The extrapolation says that in Ce3Pd20Si6 the CF ground-state at both Ce sites (8c) and (4a) is the Gamma(8) quartet. C1 [Doenni, Andreas; Kitazawa, Hideaki] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. [Straessle, Thierry; Keller, Lukas] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland. [Kakurai, Kazuhisa] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan. [Matsuda, Masaaki] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Ano, Genki; Akatsu, Mitsuhiro; Nemoto, Yuichi; Goto, Terutaka] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan. RP Donni, A (reprint author), Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. EM KITAZAWA.Hideaki@nims.go.jp RI Matsuda, Masaaki/A-6902-2016; DOENNI, Andreas/O-4545-2014 OI Matsuda, Masaaki/0000-0003-2209-9526; DOENNI, Andreas/0000-0002-7300-9175 FU Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) [18002008, 451] FX We thank Thilo Herrmannsdorfer for helpful discussions. This work is based on inelastic neutron scattering experiments performed at the Swiss spallation neutron source SINQ, Paul Scherrer Institute, Villigen, Switzerland, and at the JRR3M reactor, Tokai, Ibaraki, Japan. The neutron scattering experiments in Japan were carried out in the framework of JAEA Users' Program and within the NIMS-RIKEN-JAEA Cooperative Research Program on "Quantum Beam Science and Technology''. This work was partly supported by a Grant-in-Aid for Specially Promoted Research on "Strongly correlated quantum phases associated with charge fluctuations'' (No. 18002008), and by a Grant-in-Aid for Scientific Research on Priority Areas "High Field Spin Science in 100 T'' (No. 451) from the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT). NR 28 TC 2 Z9 2 U1 1 U2 11 PU PHYSICAL SOC JAPAN PI TOKYO PA YUSHIMA URBAN BUILDING 5F, 2-31-22 YUSHIMA, BUNKYO-KU, TOKYO, 113-0034, JAPAN SN 0031-9015 J9 J PHYS SOC JPN JI J. Phys. Soc. Jpn. PD APR PY 2011 VL 80 IS 4 AR 044715 DI 10.1143/JPSJ.80.044715 PG 8 WC Physics, Multidisciplinary SC Physics GA 747UW UT WOS:000289346600042 ER PT J AU Davidson, GS Joe, RM Roy, S Meirelles, O Allen, CP Wilson, MR Tapia, PH Manzanilla, EE Dodson, AE Chakraborty, S Carter, M Young, S Edwards, B Sklar, L Werner-Washburne, M AF Davidson, George S. Joe, Ray M. Roy, Sushmita Meirelles, Osorio Allen, Chris P. Wilson, Melissa R. Tapia, Phillip H. Manzanilla, Elaine E. Dodson, Anne E. Chakraborty, Swagata Carter, Mark Young, Susan Edwards, Bruce Sklar, Larry Werner-Washburne, Margaret TI The proteomics of quiescent and nonquiescent cell differentiation in yeast stationary-phase cultures SO MOLECULAR BIOLOGY OF THE CELL LA English DT Article ID SACCHAROMYCES-CEREVISIAE; GENE-EXPRESSION; STRUCTURAL GENE; PROTEIN-SYNTHESIS; CITRATE SYNTHASE; HIGH-THROUGHPUT; FLOW-CYTOMETRY; BUDDING YEAST; LIFE-SPAN; IDENTIFICATION AB As yeast cultures enter stationary phase in rich, glucose-based medium, differentiation of two major subpopulations of cells, termed quiescent and nonquiescent, is observed. Differences in mRNA abundance between exponentially growing and stationary-phase cultures and quiescent and nonquiescent cells are known, but little was known about protein abundance in these cells. To measure protein abundance in exponential and stationary-phase cultures, the yeast GFP-fusion library (4159 strains) was examined during exponential and stationary phases, using high-throughput flow cytometry (HyperCyt). Approximately 5% of proteins in the library showed twofold or greater changes in median fluorescence intensity (abundance) between the two conditions. We examined 38 strains exhibiting two distinct fluorescence-intensity peaks in stationary phase and determined that the two fluorescence peaks distinguished quiescent and nonquiescent cells, the two major subpopulations of cells in stationary-phase cultures. GFP-fusion proteins in this group were more abundant in quiescent cells, and half were involved in mitochondrial function, consistent with the sixfold increase in respiration observed in quiescent cells and the relative absence of Cit1p:GFP in nonquiescent cells. Finally, examination of quiescent cell-specific GFP-fusion proteins revealed symmetry in protein accumulation in dividing quiescent and nonquiescent cells after glucose exhaustion, leading to a new model for the differentiation of these cells. C1 [Davidson, George S.; Joe, Ray M.; Meirelles, Osorio; Wilson, Melissa R.; Manzanilla, Elaine E.; Dodson, Anne E.; Chakraborty, Swagata; Werner-Washburne, Margaret] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. [Davidson, George S.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Roy, Sushmita] Univ New Mexico, Dept Comp Sci, Albuquerque, NM 87131 USA. [Allen, Chris P.; Tapia, Phillip H.; Carter, Mark; Young, Susan; Edwards, Bruce; Sklar, Larry] Univ New Mexico, Dept Cytometry, Albuquerque, NM 87131 USA. [Sklar, Larry] Univ New Mexico, Dept Pathol, Albuquerque, NM 87131 USA. RP Werner-Washburne, M (reprint author), Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. EM maggieww@unm.edu OI Joe, Ray/0000-0001-7716-2874 FU National Science Foundation (NSF) [MCB-0092364, HRD-0832947]; UNMCMD [MH084690]; National Institutes of Health (NIH) [GM-060201, GM-0975149]; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX We thank Benjamin Tu and Linda Breeden for helpful discussions and Karlett Parra's laboratory for their help, especially Eli Weber. This work was supported by National Science Foundation (NSF) grant MCB-0092364 to M. W. W. and UNMCMD (MH084690) (to L. S.). R.M.J., P. H. T., M. R. W., A. E. D., and E. E. M were supported by National Institutes of Health (NIH) for Maximizing Student Diversity grant GM-060201. R.M.J. was also supported by NIH GM-0975149, and E. E. M. had further support under a Louis Stokes Alliance for Minority Participation Bridge to the Doctorate fellowship grant through NSF HRD-0832947. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 55 TC 39 Z9 39 U1 0 U2 6 PU AMER SOC CELL BIOLOGY PI BETHESDA PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA SN 1059-1524 J9 MOL BIOL CELL JI Mol. Biol. Cell PD APR 1 PY 2011 VL 22 IS 7 BP 988 EP 998 DI 10.1091/mbc.E10-06-0499 PG 11 WC Cell Biology SC Cell Biology GA 743CW UT WOS:000288995800010 PM 21289090 ER PT J AU de la Torre, S Le Fevre, O Porciani, C Guzzo, L Meneux, B Abbas, U Tasca, L Carollo, CM Contini, T Kneib, JP Lilly, SJ Mainieri, V Renzini, A Scodeggio, M Zamorani, G Bardelli, S Bolzonella, M Bongiorno, A Caputi, K Coppa, G Cucciati, O de Ravel, L Franzetti, P Garilli, B Halliday, C Iovino, A Kampczyk, P Knobel, C Koekemoer, AM Kovac, K Lamareille, F Le Borgne, JF Le Brun, V Maier, C Mignoli, M Pello, R Peng, Y Perez-Montero, E Ricciardelli, E Silverman, J Tanaka, M Tresse, L Vergani, D Zucca, E Bottini, D Cappi, A Cassata, P Cimatti, A Leauthaud, A Maccagni, D Marinoni, C McCracken, HJ Memeo, P Oesch, P Pozzetti, L Scaramella, R AF de la Torre, S. Le Fevre, O. Porciani, C. Guzzo, L. Meneux, B. Abbas, U. Tasca, L. Carollo, C. M. Contini, T. Kneib, J. -P. Lilly, S. J. Mainieri, V. Renzini, A. Scodeggio, M. Zamorani, G. Bardelli, S. Bolzonella, M. Bongiorno, A. Caputi, K. Coppa, G. Cucciati, O. de Ravel, L. Franzetti, P. Garilli, B. Halliday, C. Iovino, A. Kampczyk, P. Knobel, C. Koekemoer, A. M. Kovac, K. Lamareille, F. Le Borgne, J. -F. Le Brun, V. Maier, C. Mignoli, M. Pello, R. Peng, Y. Perez-Montero, E. Ricciardelli, E. Silverman, J. Tanaka, M. Tresse, L. Vergani, D. Zucca, E. Bottini, D. Cappi, A. Cassata, P. Cimatti, A. Leauthaud, A. Maccagni, D. Marinoni, C. McCracken, H. J. Memeo, P. Oesch, P. Pozzetti, L. Scaramella, R. TI The zCOSMOS-Bright survey: the clustering of early and late galaxy morphological types since z similar or equal to 1 SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE galaxies: evolution; galaxies: high-redshift; galaxies: statistics; cosmology: observations; large-scale structure of Universe ID VLT DEEP SURVEY; DIGITAL-SKY-SURVEY; LARGE-SCALE STRUCTURE; COLD DARK-MATTER; 2-POINT CORRELATION-FUNCTION; REDSHIFT SURVEY; SPECTRAL TYPE; LUMINOSITY DEPENDENCE; ENVIRONMENTAL DEPENDENCE; SPECTROSCOPIC SAMPLE AB We measure the spatial clustering of galaxies as a function of their morphological type at z similar or equal to 0.8, for the first time in a deep redshift survey with full morphological information. This is obtained by combining high-resolution Hubble Space Telescope imaging and Very Large Telescope spectroscopy for about 8500 galaxies to with accurate spectroscopic redshifts from the zCOSMOS-Bright redshift survey. At this epoch, early-type galaxies already show a significantly stronger clustering than late-type galaxies on all probed scales. A comparison to the Sloan Digital Sky Survey Data at z similar or equal to 0.1 shows that the relative clustering strength between early and late morphological classes tends to increase with cosmic time at small separations, while on large scales it shows no significant evolution since z similar or equal to 0.8. This suggests that most early-type galaxies had already formed in intermediate and dense environments at this epoch. Our results are consistent with a picture in which the relative clustering of different morphological types between z similar or equal to 1 and 0 reflects the evolving role of environment in the morphological transformation of galaxies, on top of a global evolution driven by mass. C1 [de la Torre, S.; Le Fevre, O.; Kneib, J. -P.; Cucciati, O.; de Ravel, L.; Le Brun, V.; Tresse, L.] Lab Astrophys Marseille, F-13388 Marseille, France. [de la Torre, S.; Guzzo, L.; Iovino, A.] INAF Osservatorio Astron Brera, I-23807 Merate, Italy. [de la Torre, S.; Tasca, L.; Scodeggio, M.; Franzetti, P.; Garilli, B.; Bottini, D.; Maccagni, D.; Memeo, P.] INAF Ist Astrofis Spaziale & Fis Cosm Milano, I-20133 Milan, Italy. [Porciani, C.] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany. [Meneux, B.; Bongiorno, A.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany. [Meneux, B.] Univ Sternwarte Munchen, Fac Phys, D-81679 Munich, Germany. [Abbas, U.] INAF Osservatorio Astron Torino, I-10025 Pino Torinese, Italy. [Carollo, C. M.; Lilly, S. J.; Caputi, K.; Kampczyk, P.; Knobel, C.; Kovac, K.; Maier, C.; Peng, Y.; Oesch, P.] ETH, Inst Astron, CH-8093 Zurich, Switzerland. [Contini, T.; Lamareille, F.; Le Borgne, J. -F.; Pello, R.; Perez-Montero, E.] Observ Midi Pyrenees, Astrophys Lab, F-31400 Toulouse, France. [Mainieri, V.; Tanaka, M.] European So Observ, D-85748 Garching, Germany. [Renzini, A.] INAF Osservatorio Astron Padova, I-35122 Padua, Italy. [Zamorani, G.; Bardelli, S.; Bolzonella, M.; Coppa, G.; Mignoli, M.; Vergani, D.; Zucca, E.; Cappi, A.; Pozzetti, L.] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy. [Halliday, C.] INAF Osservatorio Astrofis Arcetri, I-50125 Florence, Italy. [Koekemoer, A. M.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Ricciardelli, E.] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy. [Silverman, J.] Univ Tokyo, Inst Phys & Math Universe, Kashiwa, Chiba 2778568, Japan. [Cassata, P.] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA. [Cimatti, A.] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy. [Leauthaud, A.] Univ Calif Berkeley, Berkeley Lab, Berkeley, CA 94720 USA. [Leauthaud, A.] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA. [Marinoni, C.] Ctr Phys Theor Marseille, F-13288 Marseille, France. [McCracken, H. J.] Inst Astrophys, F-75014 Paris, France. [Scaramella, R.] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Italy. RP de la Torre, S (reprint author), Lab Astrophys Marseille, F-13388 Marseille, France. EM sylvain.delatorre@brera.inaf.it RI Pello, Roser/G-4754-2010; Le Fevre, Olivier/G-7389-2011; Kneib, Jean-Paul/A-7919-2015; Cappi, Alberto/O-9391-2015; Zucca, Elena/O-9396-2015; Bardelli, Sandro/O-9369-2015; Mignoli, Marco/O-9426-2015; Bolzonella, Micol/O-9495-2015 OI Pozzetti, Lucia/0000-0001-7085-0412; Bongiorno, Angela/0000-0002-0101-6624; Scodeggio, Marco/0000-0002-2282-5850; Franzetti, Paolo/0000-0002-6986-0127; Vergani, Daniela/0000-0003-0898-2216; Scaramella, Roberto/0000-0003-2229-193X; Koekemoer, Anton/0000-0002-6610-2048; Iovino, Angela/0000-0001-6958-0304; bottini, dario/0000-0001-6917-041X; Kneib, Jean-Paul/0000-0002-4616-4989; Cappi, Alberto/0000-0002-9200-7167; Zucca, Elena/0000-0002-5845-8132; Bardelli, Sandro/0000-0002-8900-0298; Mignoli, Marco/0000-0002-9087-2835; Bolzonella, Micol/0000-0003-3278-4607 FU INAF; ASI [PRIN-INAF-2007, ASI/COFIS/WP3110 I/026/07/0]; World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan; NASA [NAS 5Y26555] FX We acknowledge the anonymous referee for his careful review of the paper and helpful suggestions. Financial support from INAF and ASI through grants PRIN-INAF-2007 and ASI/COFIS/WP3110 I/026/07/0 is gratefully acknowledged. JS is supported by World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan.; This work is based on observations undertaken at the ESO-VLT under Large Program 175.A-0839 and also on observations with the NASA/ESA HST, obtained at the Space Telescope Science Institute, operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under NASA contract NAS 5Y26555, with the Subaru Telescope, operated by the National Astronomical Observatory of Japan, with the telescopes of the National Optical Astronomy Observatory, operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation, and with the Canada-France-Hawaii Telescope, operated by the National Research Council of Canada, the Centre National de la Recherche Scientifique de France and the University of Hawaii. NR 88 TC 16 Z9 16 U1 0 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD APR PY 2011 VL 412 IS 2 BP 825 EP 834 DI 10.1111/j.1365-2966.2010.17939.x PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 737DV UT WOS:000288549900007 ER PT J AU Smith, AM Lynn, S Sullivan, M Lintott, CJ Nugent, PE Botyanszki, J Kasliwal, M Quimby, R Bamford, SP Fortson, LF Schawinski, K Hook, I Blake, S Podsiadlowski, P Jonsson, J Gal-Yam, A Arcavi, I Howell, DA Bloom, JS Jacobsen, J Kulkarni, SR Law, NM Ofek, EO Walters, R AF Smith, A. M. Lynn, S. Sullivan, M. Lintott, C. J. Nugent, P. E. Botyanszki, J. Kasliwal, M. Quimby, R. Bamford, S. P. Fortson, L. F. Schawinski, K. Hook, I. Blake, S. Podsiadlowski, P. Joensson, J. Gal-Yam, A. Arcavi, I. Howell, D. A. Bloom, J. S. Jacobsen, J. Kulkarni, S. R. Law, N. M. Ofek, E. O. Walters, R. TI Galaxy Zoo Supernovae star SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE methods: data analysis; surveys; supernovae: general ID DIGITAL-SKY-SURVEY; LEGACY SURVEY AB This paper presents the first results from a new citizen science project: Galaxy Zoo Supernovae. This proof-of-concept project uses members of the public to identify supernova candidates from the latest generation of wide-field imaging transient surveys. We describe the Galaxy Zoo Supernovae operations and scoring model, and demonstrate the effectiveness of this novel method using imaging data and transients from the Palomar Transient Factory (PTF). We examine the results collected over the period 2010 April-July, during which nearly 14 000 supernova candidates from the PTF were classified by more than 2500 individuals within a few hours of data collection. We compare the transients selected by the citizen scientists to those identified by experienced PTF scanners and find the agreement to be remarkable - Galaxy Zoo Supernovae performs comparably to the PTF scanners and identified as transients 93 per cent of the similar to 130 spectroscopically confirmed supernovae (SNe) that the PTF located during the trial period (with no false positive identifications). Further analysis shows that only a small fraction of the lowest signal-to-noise ratio detections (r > 19.5) are given low scores: Galaxy Zoo Supernovae correctly identifies all SNe with >= 8 Sigma detections in the PTF imaging data. The Galaxy Zoo Supernovae project has direct applicability to future transient searches, such as the Large Synoptic Survey Telescope, by both rapidly identifying candidate transient events and via the training and improvement of existing machine classifier algorithms. C1 [Smith, A. M.; Lynn, S.; Sullivan, M.; Lintott, C. J.; Hook, I.; Blake, S.; Podsiadlowski, P.; Joensson, J.] Univ Oxford, Dept Phys Astrophys, DWB, Oxford OX1 3RH, England. [Nugent, P. E.; Botyanszki, J.; Jacobsen, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Kasliwal, M.; Quimby, R.; Kulkarni, S. R.; Ofek, E. O.] CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA. [Bamford, S. P.] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England. [Fortson, L. F.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. [Schawinski, K.] Yale Univ, Dept Phys, New Haven, CT 06511 USA. [Schawinski, K.] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA. [Hook, I.] INAF Osservatorio Roma, I-00040 Rome, Italy. [Gal-Yam, A.; Arcavi, I.] Weizmann Inst Sci, Dept Particle Phys & Astrophys, Fac Phys, IL-76100 Rehovot, Israel. [Howell, D. A.] Global Telescope Network, Las Cumbres Observ, Goleta, CA 93117 USA. [Howell, D. A.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Bloom, J. S.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Law, N. M.] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada. [Walters, R.] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA. RP Smith, AM (reprint author), Univ Oxford, Dept Phys Astrophys, DWB, Keble Rd, Oxford OX1 3RH, England. EM arfon.smith@astro.ox.ac.uk; sullivan@astro.ox.ac.uk RI Bamford, Steven/E-8702-2010; OI Bamford, Steven/0000-0001-7821-7195; Smith, Arfon/0000-0002-3957-2474; Schawinski, Kevin/0000-0001-5464-0888; Sullivan, Mark/0000-0001-9053-4820 FU Leverhulme Trust; Royal Society; Weizmann-UK; STFC; US Department of Energy [DE-FG02-06ER06-04]; NASA [PF9-00069, NAS8-03060]; NSF-CDI [0941742]; Office of Science of the US Department of Energy [DE-AC02-05CH11231] FX We acknowledge the valuable contributions of the Zooniverse community without which this project would not have been possible. AMS acknowledges support from the Leverhulme Trust. MS acknowledges support from the Royal Society. MS and AG-Y acknowledge support from a Weizmann-UK 'Making conenctions' grant. CJL acknowledges support from the STFC Science in Society Program and The Leverhulme Trust. PEN acknowledges support from the US Department of Energy Scientific Discovery through Advanced Computing program under contract DE-FG02-06ER06-04. KS acknowledges support from a NASA Einstein Postdoctoral Fellowship grant number PF9-00069, issued by the Chandra X-ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of the NASA under contract NAS8-03060. JSB acknowledges support of an NSF-CDI grant 'Real-time Classification of Massive Time-series Data Streams' (Award #0941742). The National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231, provided staff, computational resources and data storage for this project. NR 17 TC 29 Z9 31 U1 1 U2 13 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD APR PY 2011 VL 412 IS 2 BP 1309 EP 1319 DI 10.1111/j.1365-2966.2010.17994.x PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 737DV UT WOS:000288549900048 ER PT J AU Li, WD Leaman, J Chornock, R Filippenko, AV Poznanski, D Ganeshalingam, M Wang, XF Modjaz, M Jha, S Foley, RJ Smith, N AF Li, Weidong Leaman, Jesse Chornock, Ryan Filippenko, Alexei V. Poznanski, Dovi Ganeshalingam, Mohan Wang, Xiaofeng Modjaz, Maryam Jha, Saurabh Foley, Ryan J. Smith, Nathan TI Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Review DE supernovae: general ID CORE-COLLAPSE SUPERNOVAE; GAMMA-RAY BURST; IA SUPERNOVAE; LIGHT CURVES; HOST GALAXIES; INFRARED OBSERVATIONS; RELATIVE FREQUENCIES; PHYSICAL-PROPERTIES; UBVRI PHOTOMETRY; SHOCK BREAKOUT AB This is the second paper of a series in which we present new measurements of the observed rates of supernovae (SNe) in the local Universe, determined from the Lick Observatory Supernova Search (LOSS). In this paper, a complete SN sample is constructed, and the observed (uncorrected for host-galaxy extinction) luminosity functions (LFs) of SNe are derived. These LFs solve two issues that have plagued previous rate calculations for nearby SNe: the luminosity distribution of SNe and the host-galaxy extinction. We select a volume-limited sample of 175 SNe, collect photometry for every object and fit a family of light curves to constrain the peak magnitudes and light-curve shapes. The volume-limited LFs show that they are not well represented by a Gaussian distribution. There are notable differences in the LFs for galaxies of different Hubble types (especially for SNe Ia). We derive the observed fractions for the different subclasses in a complete SN sample, and find significant fractions of SNe II-L (10 per cent), IIb (12 per cent) and IIn (9 per cent) in the SN II sample. Furthermore, we derive the LFs and the observed fractions of different SN subclasses in a magnitude-limited survey with different observation intervals, and find that the LFs are enhanced at the high-luminosity end and appear more 'standard' with smaller scatter, and that the LFs and fractions of SNe do not change significantly when the observation interval is shorter than 10 d. We also discuss the LFs in different galaxy sizes and inclinations, and for different SN subclasses. Some notable results are that there is not a strong correlation between the SN LFs and the host-galaxy size, but there might be a preference for SNe IIn to occur in small, late-type spiral galaxies. The LFs in different inclination bins do not provide strong evidence for extreme extinction in highly inclined galaxies, though the sample is still small. The LFs of different SN subclasses show significant differences. We also find that SNe Ibc and IIb come from more luminous galaxies than SNe II-P, while SNe IIn come from less luminous galaxies, suggesting a possible metallicity effect. The limitations and applications of our LFs are also discussed. C1 [Li, Weidong; Leaman, Jesse; Chornock, Ryan; Filippenko, Alexei V.; Poznanski, Dovi; Ganeshalingam, Mohan; Wang, Xiaofeng; Modjaz, Maryam; Jha, Saurabh; Foley, Ryan J.; Smith, Nathan] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Leaman, Jesse] NASA, Ames Res Ctr, Mountain View, CA 94043 USA. [Chornock, Ryan; Foley, Ryan J.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Poznanski, Dovi] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Wang, Xiaofeng] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA. [Wang, Xiaofeng] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Wang, Xiaofeng] Tsinghua Univ, Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China. [Modjaz, Maryam] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA. [Jha, Saurabh] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Smith, Nathan] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. RP Li, WD (reprint author), Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA. EM wli@astro.berkeley.edu RI Wang, Xiaofeng/J-5390-2015 FU US National Science Foundation (NSF) [AST-0607485, AST-0908886]; TABASGO Foundation; US Department of Energy [DE-FC02-06ER41453, DE-FG02-08ER41563]; Sun Microsystems, Inc.; Hewlett-Packard Company; AutoScope Corporation; Lick Observatory; NSF [AST-0205808, AST-0606772]; University of California; Sylvia & Jim Katzman Foundation; Richard and Rhoda Goldman Fund; NASA; Einstein Fellowship; NSFC [10673007, 11073013]; China-973 Program [2009CB824800]; Miller Institute for Basic Research in Science (UC Berkeley) FX We thank the referee, Enrico Cappellaro, for useful comments and suggestions which improved the paper. We are grateful to the many students, postdocs and other collaborators who have contributed to the Katzman Automatic Imaging Telescope and the Lick Observatory Supernova Search over the past two decades, and to discussions concerning the determination of supernova rates - especially Jack Borde, Frank Serduke, Jeffrey Silverman, Thea Steele and Richard R. Treffers. We thank the Lick Observatory staff for their assistance with the operation of KAIT. LOSS, conducted by AVF's group, has been supported by many grants from the US National Science Foundation (NSF; most recently AST-0607485 and AST-0908886), the TABASGO Foundation, US Department of Energy SciDAC grant DE-FC02-06ER41453 and US Department of Energy grant DE-FG02-08ER41563. KAIT and its ongoing operation were made possible by donations from Sun Microsystems, Inc., the Hewlett-Packard Company, AutoScope Corporation, Lick Observatory, the NSF, the University of California, the Sylvia & Jim Katzman Foundation, the Richard and Rhoda Goldman Fund and the TABASGO Foundation. We give particular thanks to Russell M. Genet, who made KAIT possible with his initial special gift; former Lick Director Joseph S. Miller, who allowed KAIT to be placed at Lick Observatory and provided staff support; and the TABASGO Foundation, without which this work would not have been completed. JL is grateful for a fellowship from the NASA Postdoctoral Program. DP is supported by an Einstein Fellowship. XW acknowledges NSFC grants (10673007, 11073013) and the China-973 Program 2009CB824800. MM acknowledges NSF grants AST-0205808 and AST-0606772, as well as the Miller Institute for Basic Research in Science (UC Berkeley), for support during the time over which part of this work was conducted. We made use of the NASA/IPAC Extragalactic Data base (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. We acknowledge use of the HyperLeda data base (http://leda.univ-lyon1.fr). NR 133 TC 277 Z9 279 U1 0 U2 5 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD APR PY 2011 VL 412 IS 3 BP 1441 EP 1472 DI 10.1111/j.1365-2966.2011.18160.x PG 32 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 745IM UT WOS:000289159100003 ER PT J AU Li, WD Chornock, R Leaman, J Filippenko, AV Poznanski, D Wang, XF Ganeshalingam, M Mannucci, F AF Li, Weidong Chornock, Ryan Leaman, Jesse Filippenko, Alexei V. Poznanski, Dovi Wang, Xiaofeng Ganeshalingam, Mohan Mannucci, Filippo TI Nearby supernova rates from the Lick Observatory Supernova Search - III. The rate-size relation, and the rates as a function of galaxy Hubble type and colour SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE supernovae: general ID CORE-COLLAPSE SUPERNOVAE; AEGIS FIELD GALAXIES; IA SUPERNOVAE; STAR-FORMATION; MASSIVE STARS; LEGACY SURVEY; HIGH-REDSHIFT; PROGENITORS; POPULATIONS; LUMINOSITY AB This is the third paper of a series in which we present new measurements of the observed rates of supernovae (SNe) in the local Universe, determined from the Lick Observatory Supernova Search (LOSS). We have considered a sample of similar to 1000 SNe and used an optimal subsample of 726 SNe (274 SNe Ia, 116 SNe Ibc and 324 SNe II) to determine our rates. We study the trend of the rates as a function of a few quantities available for our galaxy sample, such as luminosity in the B and K bands, stellar mass and morphological class. We discuss different choices (SN samples, input SN luminosity functions, inclination correction factors) and their effect on the rates and their uncertainties. A comparison between our SN rates and the published measurements shows that they are consistent with each other to within the uncertainties when the rate calculations are done in the same manner. Nevertheless, our data demonstrate that the rates cannot be adequately described by a single parameter using either galaxy Hubble types or B - K colours. A secondary parameter in galaxy 'size', expressed by luminosity or stellar mass, is needed to adequately describe the rates in the rate-size relation: the galaxies of smaller sizes have higher SN rates per unit mass or per unit luminosity. The trends of the SN rates in galaxies of different Hubble types and colours are discussed. We examine possible causes for the rate-size relation. Physically, such a relation for the core-collapse SNe is probably linked to the correlation between the specific star-formation rate and the galaxy sizes, but it is not clear whether the same link can be established for SNe Ia. We discuss the two-component ('tardy' and 'prompt') model for SN Ia rates, and find that the SN Ia rates in young stellar populations might have a strong correlation with the core-collapse SN rates. We derive volumetric rates for the different SN types [e.g. for SNe Ia, a rate of (0.301 +/- 0.062) x 10-4 SN Mpc-3 yr-1 at redshift 0] and compare them to the measurements at different redshifts. Finally, we estimate the SN rate for the Milky Way Galaxy to be 2.84 +/- 0.60 SNe per century (with a systematic uncertainty of a factor of similar to 2), consistent with published SN rates based on several different techniques. C1 [Li, Weidong; Chornock, Ryan; Leaman, Jesse; Filippenko, Alexei V.; Poznanski, Dovi; Wang, Xiaofeng; Ganeshalingam, Mohan] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Chornock, Ryan] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Leaman, Jesse] NASA, Ames Res Ctr, Mountain View, CA 94043 USA. [Poznanski, Dovi] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Wang, Xiaofeng] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA. [Wang, Xiaofeng] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Wang, Xiaofeng] Tsinghua Univ, Tsinghua Ctr Astrophys THCA, Beijing 100084, Peoples R China. [Mannucci, Filippo] INAF Osservatorio Astrofis Arcetri, I-50125 Florence, Italy. RP Li, WD (reprint author), Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA. EM wli@astro.berkeley.edu RI Wang, Xiaofeng/J-5390-2015; OI mannucci, filippo/0000-0002-4803-2381 FU US National Science Foundation (NSF) [AST-0607485, AST-0908886]; TABASGO Foundation; US Department of Energy [DE-FC02-06ER41453, DE-FG02-08ER41563]; Sun Microsystems, Inc.; Hewlett-Packard Company; AutoScope Corporation; Lick Observatory; NSF; University of California; Sylvia & Jim Katzman Foundation; Richard and Rhoda Goldman Fund; NASA; Einstein Fellowship; NSFC [10673007, 11073013]; China-973 Program [2009CB824800] FX The LOSS, conducted by AVF's group, has been supported by many grants from the US National Science Foundation (NSF; most recently AST-0607485 and AST-0908886), the TABASGO Foundation, US Department of Energy SciDAC grant DE-FC02-06ER41453 and US Department of Energy grant DE-FG02-08ER41563. The KAIT and its ongoing operation were made possible by donations from Sun Microsystems, Inc., the Hewlett-Packard Company, AutoScope Corporation, Lick Observatory, the NSF, the University of California, the Sylvia & Jim Katzman Foundation, the Richard and Rhoda Goldman Fund and the TABASGO Foundation. We give particular thanks to Russell M. Genet, who made the KAIT possible with his initial special gift; former Lick Director Joseph S. Miller, who allowed the KAIT to be placed at Lick Observatory and provided staff support; and the TABASGO Foundation, without which this work would not have been completed. JL is grateful for a fellowship from the NASA Postdoctoral Program. DP is supported by an Einstein Fellowship. XW acknowledges NSFC grants (10673007, 11073013) and the China-973 Program 2009CB824800. We made use of the NASA/IPAC Extragalactic Data base (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. We acknowledge use of the HyperLeda data base (http://leda.univlyon1.fr). NR 58 TC 199 Z9 202 U1 1 U2 9 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD APR PY 2011 VL 412 IS 3 BP 1473 EP 1507 DI 10.1111/j.1365-2966.2011.18162.x PG 35 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 745IM UT WOS:000289159100004 ER PT J AU Mielenz, JR AF Mielenz, Jonathan R. TI Biofuels from protein SO NATURE BIOTECHNOLOGY LA English DT Editorial Material ID BIOMASS; FUELS; CHEMICALS; ALCOHOLS C1 Oak Ridge Natl Lab, Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA. RP Mielenz, JR (reprint author), Oak Ridge Natl Lab, Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA. EM mielenzjr@ornl.gov NR 10 TC 0 Z9 0 U1 2 U2 8 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1087-0156 J9 NAT BIOTECHNOL JI Nat. Biotechnol. PD APR PY 2011 VL 29 IS 4 BP 327 EP 328 DI 10.1038/nbt.1838 PG 2 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA 746XY UT WOS:000289284900015 PM 21478847 ER PT J AU Spellman, P Gray, J AF Spellman, Paul Gray, Joe TI A new treasure in the breast cancer gene hunt SO NATURE MEDICINE LA English DT Editorial Material ID THERAPEUTIC TARGET C1 [Spellman, Paul] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Spellman, Paul] US Natl Canc Inst, Bethesda, MD USA. [Gray, Joe] Oregon Hlth & Sci Univ, Portland, OR 97201 USA. RP Spellman, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM grayjo@ohsu.edu NR 9 TC 9 Z9 9 U1 0 U2 2 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1078-8956 J9 NAT MED JI Nat. Med. PD APR PY 2011 VL 17 IS 4 BP 422 EP 423 PG 2 WC Biochemistry & Molecular Biology; Cell Biology; Medicine, Research & Experimental SC Biochemistry & Molecular Biology; Cell Biology; Research & Experimental Medicine GA 746KI UT WOS:000289245100027 PM 21475233 ER PT J AU Collisson, EA Sadanandam, A Olson, P Gibb, WJ Truitt, M Gu, SD Cooc, J Weinkle, J Kim, GE Jakkula, L Feiler, HS Ko, AH Olshen, AB Danenberg, KL Tempero, MA Spellman, PT Hanahan, D Gray, JW AF Collisson, Eric A. Sadanandam, Anguraj Olson, Peter Gibb, William J. Truitt, Morgan Gu, Shenda Cooc, Janine Weinkle, Jennifer Kim, Grace E. Jakkula, Lakshmi Feiler, Heidi S. Ko, Andrew H. Olshen, Adam B. Danenberg, Kathleen L. Tempero, Margaret A. Spellman, Paul T. Hanahan, Douglas Gray, Joe W. TI Subtypes of pancreatic ductal adenocarcinoma and their differing responses to therapy SO NATURE MEDICINE LA English DT Article ID GENE-EXPRESSION; BREAST-CANCER; LUNG-CANCER; K-RAS; IDENTIFICATION; CHEMOTHERAPY; DIFFERENTIATION; MICROARRAYS; SENSITIVITY; MUTATIONS AB Pancreatic ductal adenocarcinoma (PDA) is a lethal disease. Overall survival is typically 6 months from diagnosis(1). Numerous phase 3 trials of agents effective in other malignancies have failed to benefit unselected PDA populations, although patients do occasionally respond. Studies in other solid tumors have shown that heterogeneity in response is determined, in part, by molecular differences between tumors. Furthermore, treatment outcomes are improved by targeting drugs to tumor subtypes in which they are selectively effective, with breast(2) and lung(3) cancers providing recent examples. Identification of PDA molecular subtypes has been frustrated by a paucity of tumor specimens available for study. We have overcome this problem by combined analysis of transcriptional profiles of primary PDA samples from several studies, along with human and mouse PDA cell lines. We define three PDA subtypes: classical, quasimesenchymal and exocrine-like, and we present evidence for clinical outcome and therapeutic response differences between them. We further define gene signatures for these subtypes that may have utility in stratifying patients for treatment and present preclinical model systems that may be used to identify new subtype specific therapies. C1 [Collisson, Eric A.; Sadanandam, Anguraj; Gibb, William J.; Gu, Shenda; Weinkle, Jennifer; Jakkula, Lakshmi; Feiler, Heidi S.; Spellman, Paul T.; Gray, Joe W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Collisson, Eric A.; Ko, Andrew H.; Tempero, Margaret A.] Univ Calif San Francisco, Div Hematol & Oncol, San Francisco, CA 94143 USA. [Sadanandam, Anguraj; Hanahan, Douglas] Swiss Fed Inst Technol, Swiss Inst Expt Canc Res, CH-1015 Lausanne, Switzerland. [Olson, Peter; Truitt, Morgan; Hanahan, Douglas] Univ Calif San Francisco, Dept Biochem & Biophys, San Francisco, CA 94143 USA. [Olson, Peter; Truitt, Morgan; Hanahan, Douglas] Univ Calif San Francisco, Ctr Diabet, San Francisco, CA 94143 USA. [Cooc, Janine; Danenberg, Kathleen L.] Response Genet, Los Angeles, CA USA. [Kim, Grace E.] Univ Calif San Francisco, Dept Pathol, San Francisco, CA USA. [Olshen, Adam B.] Univ Calif San Francisco, Dept Epidemiol & Biostat, San Francisco, CA 94143 USA. [Olshen, Adam B.] Univ Calif San Francisco, Helen Diller Family Comprehens Canc Ctr, San Francisco, CA 94143 USA. [Gray, Joe W.] Oregon Hlth & Sci Univ, Dept Biomed Engn, Portland, OR 97201 USA. RP Gray, JW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM grayjo@ohsu.edu OI Gu, Shenda/0000-0003-2271-0524 FU American Society of Clinical Oncology; US National Cancer Institute (NCI) [K08 CA137153]; US Department of Defense [BC087768]; NCI [PO1 CA 117969, P50 CA 58207, P50 CA 83639, U54 CA 112970]; American Cancer Society; Office of Science, Office of Biological & Environmental Research, of the United States Department of Energy [DE-AC02-05CH11231] FX We are grateful to M. Lenburg and the Gray, Hanahan and Speed labs for discussion. We thank L. Chin (Dana-Farber Cancer Institute) for 3.27, TU8988S, TU8988T, Tu8902, DanG and HupT3, S. Batra (University of Nebraska Medical Center) for Suit2, M. McMahon (UCSF) for HPAC, Capan2, HPAF II, 6.03, CFPac1, MPanc96, 2.13, Panc1, MiaPaca2, 10.05 and Colo357, and A. Singh (Massachusetts General Hospital) for Sw1990. B. Stockwell (New York University) kindly provided pLKOshKRAS 5. R. Adam (Children's Hospital Boston) kindly provided pLKOshGATA6 5. E. A. C. was supported by a Young Investigator Award from the American Society of Clinical Oncology and US National Cancer Institute (NCI) K08 CA137153. A. S. was supported by a US Department of Defense Postdoctoral Fellowship (BC087768). The research in the laboratory of D. H. was supported by an NCI Program Project Grant PO1 CA 117969; D. H. is an American Cancer Society Research Professor. This work was supported by the Director, Office of Science, Office of Biological & Environmental Research, of the United States Department of Energy under contract no. DE-AC02-05CH11231, and by NCI grants P50 CA 58207, P50 CA 83639 and U54 CA 112970 to J. W. G. NR 36 TC 251 Z9 254 U1 1 U2 35 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1078-8956 J9 NAT MED JI Nat. Med. PD APR PY 2011 VL 17 IS 4 BP 500 EP U140 DI 10.1038/nm.2344 PG 5 WC Biochemistry & Molecular Biology; Cell Biology; Medicine, Research & Experimental SC Biochemistry & Molecular Biology; Cell Biology; Research & Experimental Medicine GA 746KI UT WOS:000289245100042 PM 21460848 ER PT J AU Egami, T AF Egami, Takeshi TI RANDOM MATERIALS Localization on the nanoscale SO NATURE NANOTECHNOLOGY LA English DT News Item C1 [Egami, Takeshi] Univ Tennessee, Knoxville, TN 37996 USA. [Egami, Takeshi] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Egami, T (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. EM egami@utk.edu NR 2 TC 3 Z9 3 U1 1 U2 12 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1748-3387 J9 NAT NANOTECHNOL JI Nat. Nanotechnol. PD APR PY 2011 VL 6 IS 4 BP 199 EP 200 DI 10.1038/nnano.2011.51 PG 3 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA 745VY UT WOS:000289199700006 PM 21468109 ER PT J AU Nair, PM Salaita, K Petit, RS Groves, JT AF Nair, Pradeep M. Salaita, Khalid Petit, Rebecca S. Groves, Jay T. TI Using patterned supported lipid membranes to investigate the role of receptor organization in intercellular signaling SO NATURE PROTOCOLS LA English DT Article ID DIP-PEN NANOLITHOGRAPHY; FLUORESCENCE MICROSCOPY; SINGLE CELLS; BILAYERS; EPH; DISTRIBUTIONS; LITHOGRAPHY; SUBSTRATE; MOBILITY; LIGANDS AB Physical inputs, both internal and external to a cell, can directly alter the spatial organization of cell surface receptors and their associated functions. Here we describe a protocol that combines solid-state nanolithography and supported lipid membrane techniques to trigger and manipulate specific receptors on the surface of living cells and to develop an understanding of the interplay between spatial organization and receptor function. While existing protein-patterning techniques are capable of presenting cells with well-defined clusters of protein, this protocol uniquely allows for the control of the spatial organization of laterally fluid receptor-ligand complex at an intermembrane junction. A combination of immunofluorescence and single-cell microscopy methods and complementary biochemical analyses are used to characterize receptor signaling pathways and cell functions. The protocol requires 2-5 d to complete depending on the parameters to be studied. In principle, this protocol is widely applicable to eukaryotic cells and herein is specifically developed to study the role of physical organization and translocation of the EphA2 receptor tyrosine kinase across a library of model breast cancer cell lines. C1 [Nair, Pradeep M.; Petit, Rebecca S.; Groves, Jay T.] Univ Calif Berkeley, Howard Hughes Med Inst, Dept Chem, Berkeley, CA 94720 USA. [Nair, Pradeep M.; Petit, Rebecca S.; Groves, Jay T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Nair, Pradeep M.; Petit, Rebecca S.; Groves, Jay T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Salaita, Khalid] Emory Univ, Dept Chem, Atlanta, GA 30322 USA. [Salaita, Khalid] Emory Univ, Winship Canc Inst, Atlanta, GA 30322 USA. [Groves, Jay T.] Natl Univ Singapore, Res Ctr Excellence Mechanobiol, Singapore 117548, Singapore. RP Groves, JT (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Dept Chem, Berkeley, CA 94720 USA. EM jtgroves@lbl.gov FU U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; U.S. Department of Defense Breast Cancer Research [BC076701]; U.S. Army Medical Research Acquisition Activity [W81XWH-08-1-0677]; National Cancer Institute (NCI) FX We thank J.W. Gray and R. M. Neve for discussions that led to the use of supported membranes to study EphA2-ephrin-A1 signaling, and for providing the cells used in this work. We also thank N. Bayani for assistance in performing western blotting, A. Smoligovets and C.-H. Yu for performing transfection and imaging with EGFP-actin-expressing MDA-MB-231 cells, and A. Bershadsky for helpful discussions. This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Biosciences Division (K.S., P.M.N.; hybrid synthetic-live cell interfaces) and Materials Sciences and Engineering Division (R.S.P.; supported membrane substrates) of the U.S. Department of Energy (DOE) under contract no. DE-AC02-05CH11231. Patterned substrate fabrication was performed, in part, at the Molecular Foundry, Lawrence Berkeley National Laboratory (LBNL), and was supported by the Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division of the U.S. DOE under contract no. DE-AC02-05CH11231. This work was also supported by the Laboratory Directed Research and Development Program of LBNL under U.S. DOE contract no. DE-AC02-05CH11231. Seed support for biomedical aspects of this work was provided by the U.S. Department of Defense Breast Cancer Research Program Concept Award BC076701 under U.S. Army Medical Research Acquisition Activity no. W81XWH-08-1-0677 with follow-on support provided by Award U54 CA143836 from the National Cancer Institute (NCI) beginning in 2009. K.S. acknowledges Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy (CNMS2009-269). K.S. is also grateful to the Georgia Cancer Coalition (GCC) for a Cancer Research Award. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NCI or the National Institutes of Health (NIH). The Regents of the University of California have filed a related patent application through LBNL. NR 45 TC 44 Z9 44 U1 2 U2 41 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1754-2189 J9 NAT PROTOC JI Nat. Protoc. PD APR PY 2011 VL 6 IS 4 BP 523 EP 539 DI 10.1038/nprot.2011.302 PG 17 WC Biochemical Research Methods SC Biochemistry & Molecular Biology GA 743CF UT WOS:000288993200010 PM 21455188 ER PT J AU Williams, GJ Williams, RS Williams, JS Moncalian, G Arvai, AS Limbo, O Guenther, G SilDas, S Hammel, M Russell, P Tainer, JA AF Williams, Gareth J. Williams, R. Scott Williams, Jessica S. Moncalian, Gabriel Arvai, Andrew S. Limbo, Oliver Guenther, Grant SilDas, Soumita Hammel, Michal Russell, Paul Tainer, John A. TI ABC ATPase signature helices in Rad50 link nucleotide state to Mre11 interface for DNA repair SO NATURE STRUCTURAL & MOLECULAR BIOLOGY LA English DT Article ID DOUBLE-STRAND-BREAK; X-RAY-SCATTERING; MACROMOLECULAR STRUCTURES; MRE11/RAD50 COMPLEX; CYSTIC-FIBROSIS; BINDING; PROTEIN; TRANSPORTERS; MRE11-RAD50-NBS1; NUCLEASE AB The Rad50 ABC-ATPase complex with Mre11 nuclease is essential for dsDNA break repair, telomere maintenance and ataxia telangiectasia-mutated kinase checkpoint signaling. How Rad50 affects Mre11 functions and how ABC-ATPases communicate nucleotide binding and ligand states across long distances and among protein partners are questions that have remained obscure. Here, structures of Mre11-Rad50 complexes define the Mre11 2-helix Rad50 binding domain (RBD) that forms a four-helix interface with Rad50 coiled coils adjoining the ATPase core. Newly identified effector and basic-switch helix motifs extend the ABC-ATPase signature motif to link ATP-driven Rad50 movements to coiled coils binding Mre11, implying an similar to 30-angstrom pull on the linker to the nuclease domain. Both RBD and basic-switch mutations cause clastogen sensitivity. Our new results characterize flexible ATP-dependent Mre11 regulation, defects in cancer-linked RBD mutations, conserved superfamily basic switches and motifs effecting ATP-driven conformational change, and they provide a unified comprehension of ABC-ATPase activities. C1 [Williams, R. Scott; Williams, Jessica S.; Moncalian, Gabriel; Arvai, Andrew S.; Limbo, Oliver; Guenther, Grant; Russell, Paul; Tainer, John A.] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA. [Williams, Gareth J.; Tainer, John A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Williams, R. Scott; Moncalian, Gabriel; Arvai, Andrew S.; Guenther, Grant; Tainer, John A.] Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA. [Hammel, Michal] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Russell, Paul] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA. RP Williams, RS (reprint author), Scripps Res Inst, Dept Mol Biol, 10666 N Torrey Pines Rd, La Jolla, CA 92037 USA. EM williamsrs@niehs.nih.gov; prussell@scripps.edu; jat@scripps.edu RI Moncalian, Gabriel/K-3493-2014; Williams, Robert/A-6059-2015 OI Moncalian, Gabriel/0000-0002-3007-6490; FU National Cancer Institute [CA117638, CA92584, CA77325]; US National Intitutes of Health [1Z01ES102765-01]; Department of Energy, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory; United States Department of Energy [DE-AC02-05CH11231] FX This MRN research is supported by National Cancer Institute grants CA117638 (J.A.T. and P. R.), CA92584 (J.A.T.), CA77325 (P. R.) and in part by the US National Intitutes of Health Intramural Research program 1Z01ES102765-01 (R. S. W.). Microbial complex efforts are supported by the Ecosystems and Networks Integrated with Genes and Molecular Assemblies (ENIGMA) Program of the Department of Energy, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory (J.A.T.). The Structurally Integrated Biology for Life Sciences (SIBYLS) beamline (BL12.3.1) at the Advanced Light Source is supported by United States Department of Energy program Integrated Diffraction Analysis Technologies DE-AC02-05CH11231 (J.A.T.). We thank G. Hura (Lawrence Berkeley National Laboratory) for expert SAXS data collection assistance. NR 52 TC 78 Z9 79 U1 1 U2 6 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1545-9993 EI 1545-9985 J9 NAT STRUCT MOL BIOL JI Nat. Struct. Mol. Biol. PD APR PY 2011 VL 18 IS 4 BP 423 EP U54 DI 10.1038/nsmb.2038 PG 10 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 745UZ UT WOS:000289195000005 PM 21441914 ER PT J AU Costa, A Ilves, I Tamberg, N Petojevic, T Nogales, E Botchan, MR Berger, JM AF Costa, Alessandro Ilves, Ivar Tamberg, Nele Petojevic, Tatjana Nogales, Eva Botchan, Michael R. Berger, James M. TI The structural basis for MCM2-7 helicase activation by GINS and Cdc45 SO NATURE STRUCTURAL & MOLECULAR BIOLOGY LA English DT Article ID EUKARYOTIC DNA-REPLICATION; MINICHROMOSOME MAINTENANCE PROTEIN; METHANOBACTERIUM-THERMOAUTOTROPHICUM; HEXAMERIC HELICASE; CRYSTAL-STRUCTURE; ATP HYDROLYSIS; FUNCTIONAL INSIGHTS; ELECTRON-MICROSCOPY; COMPLEX; ORIGIN AB Two central steps for initiating eukaryotic DNA replication involve loading of the Mcm2-7 helicase onto double-stranded DNA and its activation by GINS-Cdc45. To better understand these events, we determined the structures of Mcm2-7 and the CMG complex by using single-particle electron microscopy. Mcm2-7 adopts two conformations-a lock-washer-shaped spiral state and a planar, gapped-ring form-in which Mcm2 and Mcm5 flank a breach in the helicase perimeter. GINS and Cdc45 bridge this gap, forming a topologically closed assembly with a large interior channel; nucleotide binding further seals off the discontinuity between Mcm2 and Mcm5, partitioning the channel into two smaller pores. Together, our data help explain how GINS and Cdc45 activate Mcm2-7, indicate that Mcm2-7 loading may be assisted by a natural predisposition of the hexamer to form open rings, and suggest a mechanism by which the CMG complex assists DNA strand separation. C1 [Costa, Alessandro; Ilves, Ivar; Tamberg, Nele; Petojevic, Tatjana; Nogales, Eva; Botchan, Michael R.; Berger, James M.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Costa, Alessandro; Nogales, Eva; Botchan, Michael R.; Berger, James M.] Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA. [Petojevic, Tatjana] Free Univ Berlin, Inst Chem & Biochem, Dept Biol Chem & Pharm, D-1000 Berlin, Germany. [Nogales, Eva] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Nogales, Eva] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Berger, JM (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA. EM mbotchan@berkeley.edu; jmberger@berkeley.edu RI Ilves, Ivar/H-2472-2012 OI Ilves, Ivar/0000-0002-1747-9973 FU European Molecular Biology Organization; Boehringer Ingelheim Fonds; Human Frontier Science Program [RPG0039]; National Institute of General Medical Sciences [GM071747]; National Cancer Institute [CA R37-30490] FX The authors would like to thank A. Lyubimov and F. Bleichert for comments and help with the manuscript; and G. Lander, P. Grob, R. Hannah, R. Hall, M. Cianfrocco and C. Ciferri for technical help. This work was supported by a European Molecular Biology Organization long-term postdoctoral fellowship (to A. C.), a PhD fellowship from the Boehringer Ingelheim Fonds (to T. P.), the Human Frontier Science Program (RPG0039, to E.N.), the National Institute of General Medical Sciences (GM071747, to J.M.B.) and the National Cancer Institute (CA R37-30490, to M. R. B.). E.N. is a Howard Hughes Medical Institute investigator. NR 59 TC 153 Z9 153 U1 1 U2 17 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1545-9985 J9 NAT STRUCT MOL BIOL JI Nat. Struct. Mol. Biol. PD APR PY 2011 VL 18 IS 4 BP 471 EP U110 DI 10.1038/nsmb.2004 PG 9 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 745UZ UT WOS:000289195000012 PM 21378962 ER PT J AU Miroshnikova, YA Jorgens, DM Spirio, L Auer, M Sarang-Sieminski, AL Weaver, VM AF Miroshnikova, Y. A. Jorgens, D. M. Spirio, L. Auer, M. Sarang-Sieminski, A. L. Weaver, V. M. TI Engineering strategies to recapitulate epithelial morphogenesis within synthetic three-dimensional extracellular matrix with tunable mechanical properties SO PHYSICAL BIOLOGY LA English DT Article ID SMOOTH-MUSCLE-CELLS; ASSEMBLING PEPTIDE HYDROGEL; MESENCHYMAL STEM-CELLS; BASEMENT-MEMBRANE; FOCAL ADHESIONS; IN-VITRO; CAPILLARY MORPHOGENESIS; TISSUE MORPHOGENESIS; MALIGNANT PHENOTYPE; HEPATOCYTE CULTURE AB The mechanical properties (e.g. stiffness) of the extracellular matrix (ECM) influence cell fate and tissue morphogenesis and contribute to disease progression. Nevertheless, our understanding of the mechanisms by which ECM rigidity modulates cell behavior and fate remains rudimentary. To address this issue, a number of two and three-dimensional (3D) hydrogel systems have been used to explore the effects of the mechanical properties of the ECM on cell behavior. Unfortunately, many of these systems have limited application because fiber architecture, adhesiveness and/or pore size often change in parallel when gel elasticity is varied. Here we describe the use of ECM-adsorbed, synthetic, self-assembling peptide (SAP) gels that are able to recapitulate normal epithelial acini morphogenesis and gene expression in a 3D context. By exploiting the range of viscoelasticity attainable with these SAP gels, and their ability to recreate native-like ECM fibril topology with minimal variability in ligand density and pore size, we were able to reconstitute normal and tumor-like phenotypes and gene expression patterns in nonmalignant mammary epithelial cells. Accordingly, this SAP hydrogel system presents the first tunable system capable of independently assessing the interplay between ECM stiffness and multi-cellular epithelial phenotype in a 3D context. C1 [Miroshnikova, Y. A.; Weaver, V. M.] Univ Calif San Francisco, Dept Surg, Ctr Bioengn & Tissue Regenerat, San Francisco, CA 94143 USA. [Miroshnikova, Y. A.; Sarang-Sieminski, A. L.] FW Olin Coll Engn, Needham, MA 02492 USA. [Jorgens, D. M.; Auer, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Spirio, L.] PuraMatrix 3DM Inc, Cambridge, MA 02142 USA. [Weaver, V. M.] Univ Calif San Francisco, Dept Anat, Eli & Edythe Broad Ctr Regenerat Med, San Francisco, CA 94143 USA. [Weaver, V. M.] Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, Eli & Edythe Broad Ctr Regenerat Med, San Francisco, CA 94143 USA. [Weaver, V. M.] Univ Calif San Francisco, Stem Cell Res & Helen Diller Family Comprehens Ca, San Francisco, CA 94143 USA. RP Weaver, VM (reprint author), Univ Calif San Francisco, Dept Surg, Ctr Bioengn & Tissue Regenerat, San Francisco, CA 94143 USA. EM Valerie.weaver@ucsfmedctr.org FU NCI [U54CA143836-01, 5R01CA138818-02]; Department of Defense Breast Cancer Research [W81XWH-05-1-330]; National Science Foundation FX We thank C Frantz and J Lakins for technical assistance. This work was supported by an NCI U54CA143836-01 grant to J Liphardt and VMW, and 5R01CA138818-02 to VMW, a Department of Defense Breast Cancer Research Era of Hope Scholar award W81XWH-05-1-330 to VMW and a National Science Foundation (GRFP) Fellowship to YAM. NR 93 TC 32 Z9 32 U1 1 U2 27 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1478-3967 EI 1478-3975 J9 PHYS BIOL JI Phys. Biol. PD APR PY 2011 VL 8 IS 2 AR 026013 DI 10.1088/1478-3975/8/2/026013 PG 13 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 745VR UT WOS:000289198800014 PM 21441648 ER PT J AU Reichhardt, CJO Reichhardt, C Bishop, AR AF Reichhardt, C. J. Olson Reichhardt, C. Bishop, A. R. TI Anisotropic sliding dynamics, peak effect, and metastability in stripe systems SO PHYSICAL REVIEW E LA English DT Article ID HIGH LANDAU-LEVELS; FLUX-LINE-LATTICE; VORTEX-LATTICE; II SUPERCONDUCTORS; QUENCHED DISORDER; DRIVEN SYSTEMS; MAGNETIC-FIELD; PHASES; FLOW; TRANSITION AB A variety of soft and hard condensed matter systems are known to form stripe patterns. Here we use numerical simulations to analyze how such stripe states depin and slide when interacting with a random substrate and with driving in different directions with respect to the orientation of the stripes. Depending on the strength and density of the substrate disorder, we find that there can be pronounced anisotropy in the transport produced by different dynamical flow phases. We also find a disorder-induced "peak effect" similar to that observed for superconducting vortex systems, which is marked by a transition from elastic depinning to a state where the stripe structure fragments or partially disorders at depinning. Under the sudden application of a driving force, we observe pronounced metastability effects similar to those found near the order-disorder transition associated with the peak effect regime for three-dimensional superconducting vortices. The characteristic transient time required for the system to reach a steady state diverges in the region where the flow changes from elastic to disordered. We also find that anisotropy of the flow persists in the presence of thermal disorder when thermally induced particle hopping along the stripes dominates. The thermal effects can wash out the effects of the quenched disorder, leading to a thermally induced stripe state. We map out the dynamical phase diagram for this system, and discuss how our results could be explored in electron liquid crystal systems, type-1.5 superconductors, and pattern-forming colloidal assemblies. C1 [Reichhardt, C. J. Olson; Reichhardt, C.; Bishop, A. R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Reichhardt, CJO (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. OI Reichhardt, Cynthia/0000-0002-3487-5089 FU NNSA of the US DoE at LANL [DE-AC52-06NA25396] FX This work was carried out under the auspices of the NNSA of the US DoE at LANL under Contract No. DE-AC52-06NA25396. NR 73 TC 14 Z9 14 U1 0 U2 12 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD APR 1 PY 2011 VL 83 IS 4 AR 041501 DI 10.1103/PhysRevE.83.041501 PN 1 PG 17 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 746GU UT WOS:000289232200003 PM 21599163 ER PT J AU Ho, CK Khalsa, SS Kolb, GJ AF Ho, Clifford K. Khalsa, Siri S. Kolb, Gregory J. TI Methods for probabilistic modeling of concentrating solar power plants SO SOLAR ENERGY LA English DT Article DE Probabilistic modeling; Uncertainty; Sensitivity; Latin Hypercube Sampling; Concentrating solar AB Probabilistic modeling of concentrating solar power technologies provides important information regarding uncertainties and sensitivities not available from deterministic models. Benefits of using probabilistic models include quantification of uncertainties inherent in the system and characterization of their impact on system performance and economics. This paper presents the tools necessary to conduct probabilistic modeling of concentrating solar technologies. The probabilistic method begins with the identification of uncertain variables and the assignment of appropriate distributions for those variables. Those parameters are then sampled using a stratified method (Latin Hypercube Sampling) to ensure complete and representative sampling from each distribution. Models of performance, reliability, and/or cost are then simulated multiple times using the sampled set of parameters. The results yield a cumulative distribution function that can be analyzed to quantify the probability of achieving a particular metric (e.g., net energy output or levelized energy cost) and to rank the importance of the uncertain input parameters. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Ho, Clifford K.; Kolb, Gregory J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Khalsa, Siri S.] Sandia Staffing Alliance, Concentrating Solar Technol, Albuquerque, NM 87185 USA. RP Ho, CK (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM ckho@sandia.gov NR 6 TC 19 Z9 19 U1 0 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0038-092X J9 SOL ENERGY JI Sol. Energy PD APR PY 2011 VL 85 IS 4 SI SI BP 669 EP 675 DI 10.1016/j.solener.2010.05.004 PG 7 WC Energy & Fuels SC Energy & Fuels GA 745BU UT WOS:000289139700009 ER PT J AU Stebner, A Gao, XJ Brown, DW Brinson, LC AF Stebner, Aaron Gao, Xiujie Brown, Donald W. Brinson, L. Catherine TI Neutron diffraction studies and multivariant simulations of shape memory alloys: Empirical texture development-mechanical response relations of martensitic nickel-titanium SO ACTA MATERIALIA LA English DT Article DE Shape memory alloys (SMA); Compression test; Texture; Neutron diffraction; Twinning ID NITI-TIC COMPOSITES; TENSILE DEFORMATION; SUPERELASTIC NITI; PHASE-FRACTION; STRAIN; TRANSFORMATION; REORIENTATION; MODEL; SHEETS AB Mechanical responses and texture developments were observed in situ during the creation of multiaxial stress states in polycrystalline NiTi parallelepiped specimens, achieved via sequential compression along unique principal axes. For all of the compression stages, regardless of initial texture, the two major texture components behaved similarly: (1 0 0) poles aligned with, while (0 1 1) poles oriented perpendicular to, the loading direction. The effective critical resolved shear stress needed to induce significant reorientation, however, was reduced through prior loading. In the macroscopic responses, prior transverse direction loading resulted in widening of the reorientation plateau, a reduction of the effective Young's modulus, and substantial alteration of effective Poisson's ratios during axial direction straining. Additionally, these empirical results are presented in a manner conducive to the verification of shape memory alloy micromechanics and continuum mechanics constitutive models. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Stebner, Aaron; Brinson, L. Catherine] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA. [Gao, Xiujie] Gen Motors R&D, Vehicle Dev Res Lab, Warren, MI 48090 USA. [Brown, Donald W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Brinson, L. Catherine] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. RP Brinson, LC (reprint author), Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA. EM cbrinson@northwestern.edu RI Brinson, L. Catherine/B-6678-2009; Brinson, L Catherine/B-1315-2013; Stebner, Aaron/A-7685-2015 OI Brinson, L Catherine/0000-0003-2551-1563; FU Office of Basic Energy Sciences of the Department of Energy; Telezygology, Inc.; Northwestern University; Boeing Company; NASA FX 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 of the Department of Energy. A. S. gratefully acknowledges funding from Telezygology, Inc. A.S. and L.C.B. gratefully acknowledge funding from Northwestern University's Predictive Science and Engineering Design Cluster and Initiative for Sustainability and Energy programs, and The Boeing Company. X. G. and L.C.B. gratefully acknowledge funding from NASA Langley.The authors collectively thank Professor Raj Vaidyanathan at University of Central Florida for providing material and feedback; Deborah S. Burton at Northwestern University for assisting with the experiments; Dr. Carlos Tome at LANL for fielding questions and providing POLE7 [33] (used to create pole figures in preliminary analysis of these data); as well as Catherine Tupper and Anselm Neuhohr at Northwestern University and Dr. Santo Padula II at NASA Glenn Research Center for their valued feedback and discussions. NR 33 TC 12 Z9 12 U1 0 U2 23 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 APR PY 2011 VL 59 IS 7 BP 2841 EP 2849 DI 10.1016/j.actamat.2011.01.023 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 744YM UT WOS:000289131100027 ER PT J AU Wang, L Bei, H Gao, YF Lu, ZP Nieh, TG AF Wang, L. Bei, H. Gao, Y. F. Lu, Z. P. Nieh, T. G. TI Effect of residual stresses on the hardness of bulk metallic glasses SO ACTA MATERIALIA LA English DT Article DE Residual stresses; Metallic glasses; Hardness; Nanoindentation; Shear banding ID AMORPHOUS-ALLOYS; MECHANICAL-PROPERTIES; SHEAR BANDS; INHOMOGENEOUS DEFORMATION; SHARP INDENTATION; FREE-VOLUME; NANOINDENTATION; BEHAVIOR; PLASTICITY; STRAIN AB Nanoindentation experiments were conducted on Zr-based metallic glass samples, which were elastically and plastically bent in order to investigate the effect of residual stresses on hardness. It was found that tensile residual stress reduced the hardness significantly, while compressive residual stress produced only a small effect on the hardness. These observations are consistent with three-dimensional continuum-plasticity-based finite-element simulations. The hardness was also found to vary more significantly with residual stresses, in particular in tension, than that caused by shear-banding-induced softening, suggesting hardness measurement is a practical method for the evaluation of tensile residual stresses in a metallic glass. Hardness variation in the bent sample was correlated with the residual-stress-induced volume dilatation through a free-volume-based model. In this paper, we also present a detailed stress analysis based on yield asymmetry under tension and compression to describe the distribution of residual stresses in bent metallic glass specimens. The calculations agree well with the hardness variations measured experimentally. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Wang, L.; Gao, Y. F.; Nieh, T. G.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Wang, L.; Lu, Z. P.] Univ Sci & Technol Beijing, State Key Lab Adv Met & Metall Mat, Beijing 100083, Peoples R China. [Bei, H.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Gao, Y. F.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. RP Nieh, TG (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. EM tnieh@utk.edu RI Gao, Yanfei/F-9034-2010; Lu, Zhao-Ping/A-2718-2009; Nieh, Tai-Gang/G-5912-2011; OI Gao, Yanfei/0000-0003-2082-857X; Nieh, Tai-Gang/0000-0002-2814-3746; Bei, Hongbin/0000-0003-0283-7990 FU US Department of Energy, Office of Basic Energy Sciences [DE-FG02-06ER46338]; University of Tennessee; Tennessee Agricultural Experiment Station; UT College of Engineering; US Department of Energy, Office of Basic Energy Science, Materials Sciences and Engineering Division; National Science Foundation [DMR 0909037]; National Natural Science Foundation of China [50725104]; 973 program [2007CB613903] FX This work (T.G.N. and L.W.) was supported by the US Department of Energy, Office of Basic Energy Sciences, under contract DE-FG02-06ER46338 with the University of Tennessee. Instrumentation for the nanoindentation work was jointly funded by the Tennessee Agricultural Experiment Station and UT College of Engineering. Work conducted in ORNL is supported by the US Department of Energy, Office of Basic Energy Science, Materials Sciences and Engineering Division (H.B.). Financial support was also provided by the National Science Foundation under Grant No. DMR 0909037 (Y.F.G.). Z.P.L. is grateful for support from the National Natural Science Foundation of China (No. 50725104) and the 973 program (No. 2007CB613903). NR 38 TC 48 Z9 52 U1 5 U2 59 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 APR PY 2011 VL 59 IS 7 BP 2858 EP 2864 DI 10.1016/j.actamat.2011.01.025 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 744YM UT WOS:000289131100029 ER PT J AU Korber, B Foley, B AF Korber, Bette Foley, Brian TI AIDS Research Pioneer Gerry Myers Dies IN MEMORIAM SO AIDS RESEARCH AND HUMAN RETROVIRUSES LA English DT Biographical-Item C1 [Korber, Bette; Foley, Brian] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Korber, B (reprint author), Los Alamos Natl Lab, Div Theoret, T10,MS K710, Los Alamos, NM 87545 USA. EM btk@lanl.gov; btf@lanl.gov OI Korber, Bette/0000-0002-2026-5757 NR 0 TC 0 Z9 0 U1 0 U2 2 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 0889-2229 J9 AIDS RES HUM RETROV JI Aids Res. Hum. Retrovir. PD APR PY 2011 VL 27 IS 4 BP 453 EP 454 DI 10.1089/aid.2011.1500 PG 2 WC Immunology; Infectious Diseases; Virology SC Immunology; Infectious Diseases; Virology GA 744DM UT WOS:000289074400016 PM 21456886 ER PT J AU Marcus, RK Quarles, CD Barinaga, CJ Carado, AJ Koppenaal, DW AF Marcus, R. Kenneth Quarles, C. Derrick, Jr. Barinaga, Charles J. Carado, Anthony J. Koppenaal, David W. TI Liquid Sampling-Atmospheric Pressure Glow Discharge Ionization Source for Elemental Mass Spectrometry SO ANALYTICAL CHEMISTRY LA English DT Article ID OPTICAL-EMISSION SOURCE; ION-SOURCE; ELECTROLYTE; MEDIA AB A new, low power ionization source for elemental MS analysis of aqueous solutions is described. The liquid sampling-atmospheric pressure grow discharge (LS-APGD) operates by a process wherein the surface of the liquid emanating from a 75 mu m i.d. glass capillary acts as the cathode of the direct current glow discharge. Analyte-containing solutions at a flow rate of 100 mu L min(-1) are vaporized by the passage of current, yielding gas phase solutes that are subsequently ionized in the <5 W (maximum of 60 mA and 500 V), similar to 1 mm(3) volume, plasma. The LS-APGD is mounted in place of the normal electrospray ionization source of a Thermo Scientific Exactive Orbitrap mass spectrometer system without any other modifications. Basic operating characteristics are described, including the role of discharge power on mass spectral composition, the ability to obtain ultrahigh resolution elemental isotopic patterns, and demonstration of potential limits of detection based on the injection of aliquots of multielement standards (S/N > 1000 for 5 ng mL(-1) Cs). While much optimization remains, it is believed that the LS-APGD ion source may present a practical alternative to high-powered (>1 kW) plasma sources typically employed in elemental mass spectrometry, particularly for those cases where costs, operational overhead, simplicity, or integrated elemental/molecular analysis considerations are important. C1 [Marcus, R. Kenneth; Quarles, C. Derrick, Jr.] Clemson Univ, Dept Chem, Clemson, SC 29634 USA. [Barinaga, Charles J.; Carado, Anthony J.; Koppenaal, David W.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Marcus, RK (reprint author), Clemson Univ, Dept Chem, Biosyst Res Complex, Clemson, SC 29634 USA. EM marcusr@clemson.edu FU US DOE [DE-AC06-76RLO-1830]; U.S. Department of Energy; DOE Office of Non-Proliferation Research and Engineering [NA22] FX This work was performed at Pacific Northwest National Laboratory, operated for the US DOE by Batelle Memorial Institute under Contract DE-AC06-76RLO-1830. The Exactive MS capability was provided by the W. R. Wiley Environmental Molecular Science Laboratory, a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research (BER) program. Support for this work was provided by the DOE Office of Non-Proliferation Research and Engineering (NA22). NR 22 TC 32 Z9 35 U1 3 U2 31 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 APR 1 PY 2011 VL 83 IS 7 BP 2425 EP 2429 DI 10.1021/ac200098h PG 5 WC Chemistry, Analytical SC Chemistry GA 741TM UT WOS:000288887700004 PM 21355580 ER PT J AU Isselhardt, BH Savina, MR Knight, KB Pellin, MJ Hutcheon, ID Prussin, SG AF Isselhardt, B. H. Savina, M. R. Knight, K. B. Pellin, M. J. Hutcheon, I. D. Prussin, S. G. TI Improving Precision in Resonance Ionization Mass Spectrometry: Influence of Laser Bandwidth in Uranium Isotope Ratio Measurements SO ANALYTICAL CHEMISTRY LA English DT Article ID ENVIRONMENTAL-SAMPLES; SURFACE-ANALYSIS; TRACE ANALYSIS; PLUTONIUM; SPECTROSCOPY; ATOMS; RIMS AB The use of broad bandwidth lasers with automated feedback control of wavelength was applied to the measurement of (235)U/(238)U ratios by resonance ionization mass spectrometry (RIMS) to decrease laser-induced isotopic fractionation. By broadening the bandwidth of the first laser in a three-color, three-photon ionization process from a bandwidth of 1.8 GHz to about 10 GHz, the variation in sequential relative isotope abundance measurements decreased from 10% to less than 0.5%. This procedure was demonstrated for the direct interrogation of uranium oxide targets with essentially no sample preparation. C1 [Isselhardt, B. H.; Prussin, S. G.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. [Isselhardt, B. H.; Knight, K. B.; Hutcheon, I. D.] Lawrence Livermore Natl Lab, Glenn Seaborg Inst, Livermore, CA USA. [Savina, M. R.; Pellin, M. J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Isselhardt, BH (reprint author), 4155 Etcheverry Hall,MC 1730, Berkeley, CA 94720 USA. EM isselhardt@berkeley.edu RI Pellin, Michael/B-5897-2008 OI Pellin, Michael/0000-0002-8149-9768 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; LLNL [10-SI-016]; Department of Energy Office of Nonproliferation Research and Development; Department of Homeland Security; U.S. Department of Energy, Basic Energy Sciences, Division of Material Sciences and Engineering [DEAC02-06CH11357.LLNL-JRNL-458116] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was funded by the Laboratory Directed Research and Development Program at LLNL under Project 10-SI-016, as well as with support from the Department of Energy Office of Nonproliferation Research and Development and the Department of Homeland Security. The CHARISMA facility at Argonne National Laboratory is funded by the U.S. Department of Energy, Basic Energy Sciences, Division of Material Sciences and Engineering under Award DEAC02-06CH11357.LLNL-JRNL-458116. NR 26 TC 13 Z9 13 U1 0 U2 26 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 APR 1 PY 2011 VL 83 IS 7 BP 2469 EP 2475 DI 10.1021/ac102586v PG 7 WC Chemistry, Analytical SC Chemistry GA 741TM UT WOS:000288887700011 PM 21410136 ER PT J AU Fu, ZF Shao, GC Wang, J Lu, DL Wang, WJ Lin, YH AF Fu, Zhifeng Shao, Guocheng Wang, Jun Lu, Donglai Wang, Wanjun Lin, Yuehe TI Microfabricated Renewable Beads-Trapping/Releasing Flow Cell for Rapid Antigen-Antibody Reaction in Chemiluminescent Immunoassay SO ANALYTICAL CHEMISTRY LA English DT Article ID MICROFLUIDIC IMMUNOSENSOR; INJECTION-ANALYSIS; ASSAY; CHIP; FLUORESCENCE; ACID; AMPLIFICATION; CHLORPYRIFOS; INTEGRATION; SENSITIVITY AB A renewable flow cell integrating a microstructured pillar-array filter and a pneumatic microvalve was microfabricated to trap and release beads. A bead-based immunoassay using this device was also developed. This microfabricated device consists of a microfluidic channel connecting to a beads chamber in which the pillar-array filter is built. Underneath the filter, there is a pneumatic microvalve built across the chamber. Such a device can trap and release beads in the chamber by "closing" or "opening" the microvalve. On the basis of the pneumatic microvalve, the device can trap beads in the chamber before performing an assay and release the used beads after the assay. Therefore, this microfabricated device is suitable for "renewable surface analysis". A model analyte, 3,5,6-trichloropyridinol (TCP), was chosen to demonstrate the analytical performance of the device. The entire fluidic assay process, including beads trapping, immuno binding, beads washing, beads releasing, and chemiluminesence signal collection, could be completed in 10 min. The immunoassay of TCP using this microfabricated device showed a linear range of 0.20-70 ng/mL with a limit of detection of 0.080 ng/mL. The device was successfully used to detect TCP spiked in human plasma at the concentration range of 1.0-50 ng/mL, with an analytical recovery of 81-110%. The results demonstrated that this device can provide a rapid, sensitive, reusable, low-cost, and automatic tool for detecting various biomarkers in biological fluids. C1 Southwest Univ, Coll Pharmaceut Sci, Key Lab Luminescence & Real Time Anal, Minist Educ, Chongqing 400716, Peoples R China. [Fu, Zhifeng; Shao, Guocheng; Wang, Jun; Lu, Donglai; Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA. [Shao, Guocheng; Wang, Wanjun] Louisiana State Univ, Dept Mech Engn, Baton Rouge, LA 70803 USA. RP Wang, J (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM jun.wang@pnl.gov; yuehe.lin@pnl.gov RI Lin, Yuehe/D-9762-2011; Shao, Guocheng/D-2307-2012 OI Lin, Yuehe/0000-0003-3791-7587; FU National Institute of Environmental Health Sciences [U54 ES16015]; National Institute of Health (NIH); NIH through the National Institute of Neurological Disorders and Stroke [U01 NS058161-01]; U.S. Department of Energy [DE-AC05-76RL01830]; PNNL; Natural Science Foundation of China [20805036] FX This work was supported partially by Grant U54 ES16015 from the National Institute of Environmental Health Sciences, the National Institute of Health (NIH), and Grant U01 NS058161-01 from the NIH CounterACT Program through the National Institute of Neurological Disorders and Stroke. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the federal government. A portion of the research was performed using the Microfabrication Laboratory 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). PNNL, is operated for the U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830. Z.F. acknowledges a fellowship from PNNL and financial support from the Natural Science Foundation of China (20805036). NR 40 TC 17 Z9 17 U1 7 U2 63 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 APR 1 PY 2011 VL 83 IS 7 BP 2685 EP 2690 DI 10.1021/ac1032116 PG 6 WC Chemistry, Analytical SC Chemistry GA 741TM UT WOS:000288887700040 PM 21366237 ER PT J AU Creutz, M AF Creutz, Michael TI Anomalies, gauge field topology, and the lattice SO ANNALS OF PHYSICS LA English DT Article DE Chiral symmetry; Anomalies; Gauge field topology ID EXACTLY MASSLESS QUARKS; MONTE-CARLO; QCD; INSTANTONS; FERMIONS; U(1) AB Motivated by the connection between gauge field topology and the axial anomaly in fermion currents, I suggest that the fourth power of the naive Dirac operator can provide a natural method to define a local lattice measure of topological charge. For smooth gauge fields this reduces to the usual topological density. For typical gauge field configurations in a numerical simulation, however, quantum fluctuations dominate, and the sum of this density over the system does not generally give an integer winding. On cooling with respect to the Wilson gauge action, instanton like structures do emerge. As cooling proceeds, these objects tend shrink and finally "fall through the lattice." Modifying the action can block the shrinking at the expense of a loss of reflection positivity. The cooling procedure is highly sensitive to the details of the initial steps, suggesting that quantum fluctuations induce a small but fundamental ambiguity in the definition of topological susceptibility. (C) 2010 Elsevier Inc. All rights reserved. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Creutz, M (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM creutz@bnl.gov FU Alexander von Humboldt Foundation; U.S. Department of Energy [DE-AC02-98CH10886] FX I am grateful to the Alexander von Humboldt Foundation for supporting visits to the University of Mainz where part of this study was carried out. This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 32 TC 5 Z9 5 U1 0 U2 3 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0003-4916 J9 ANN PHYS-NEW YORK JI Ann. Phys. PD APR PY 2011 VL 326 IS 4 BP 911 EP 925 DI 10.1016/j.aop.2010.10.011 PG 15 WC Physics, Multidisciplinary SC Physics GA 742GB UT WOS:000288928200007 ER PT J AU Heilmann, RK Ahn, M Bruccoleri, A Chang, CH Gullikson, EM Mukherjee, P Schattenburg, ML AF Heilmann, Ralf K. Ahn, Minseung Bruccoleri, Alex Chang, Chih-Hao Gullikson, Eric M. Mukherjee, Pran Schattenburg, Mark L. TI Diffraction efficiency of 200-nm-period critical-angle transmission gratings in the soft x-ray and extreme ultraviolet wavelength bands SO APPLIED OPTICS LA English DT Article ID ON-INSULATOR WAFERS; NANOIMPRINT LITHOGRAPHY; FABRICATION; SCATTERING; METROLOGY; ARRAYS AB We report on measurements of the diffraction efficiency of 200-nm-period freestanding blazed transmission gratings for wavelengths in the 0.96 to 19.4 nm range. These critical-angle transmission (CAT) gratings achieve highly efficient blazing over a broad band via total external reflection off the sidewalls of smooth, tens of nanometer thin ultrahigh aspect-ratio silicon grating bars and thus combine the advantages of blazed x-ray reflection gratings with those of more conventional x-ray transmission gratings. Prototype gratings with maximum depths of 3.2 and 6 mu m were investigated at two different blaze angles. In these initial CAT gratings the grating bars are monolithically connected to a cross support mesh that only leaves less than half of the grating area unobstructed. Because of our initial fabrication approach, the support mesh bars feature a strongly trapezoidal cross section that leads to varying CAT grating depths and partial absorption of diffracted orders. While theory predicts broadband absolute diffraction efficiencies as high as 60% for ideal CAT gratings without a support mesh, experimental results show efficiencies in the range of similar to 50-100% of theoretical predictions when taking the effects of the support mesh into account. Future minimization of the support mesh therefore promises broadband CAT grating absolute diffraction efficiencies of 50% or higher. (C) 2011 Optical Society of America C1 [Heilmann, Ralf K.; Ahn, Minseung; Bruccoleri, Alex; Chang, Chih-Hao; Mukherjee, Pran; Schattenburg, Mark L.] MIT, MIT Kavli Inst Astrophys & Space Res, Space Nanotechnol Lab, Cambridge, MA 02139 USA. [Gullikson, Eric M.] Univ Calif Berkeley, Lawrence Berkeley Lab, CXRO, Berkeley, CA 94720 USA. RP Heilmann, RK (reprint author), MIT, MIT Kavli Inst Astrophys & Space Res, Space Nanotechnol Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM ralf@space.mit.edu RI Chang, Chih-Hao/E-9642-2011; Heilmann, Ralf/D-4680-2009 FU National Aeronautics and Space Administration [NNX07AG98G, NNX08AI62G]; Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the U.S. Department of Energy [DE-AC02-05CH11231] FX We gratefully acknowledge technical support from R. C. Fleming (Space Nanotechnology Laboratory), as well as facilities support from the Space Nanotechnology Laboratory, the Nanostructures Laboratory, and the Microsystems Technology Laboratories (all at MIT). This work was supported by National Aeronautics and Space Administration grants NNX07AG98G and NNX08AI62G. The Advanced Light Source at Lawrence Berkeley National Laboratory is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the U.S. Department of Energy under contract DE-AC02-05CH11231. NR 23 TC 18 Z9 18 U1 0 U2 13 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD APR 1 PY 2011 VL 50 IS 10 BP 1364 EP 1373 DI 10.1364/AO.50.001364 PG 10 WC Optics SC Optics GA 744CF UT WOS:000289070300013 PM 21460902 ER PT J AU Mahurin, SM John, J Sepaniak, MJ Dai, S AF Mahurin, Shannon M. John, Joshy Sepaniak, Michael J. Dai, Sheng TI A Reusable Surface-Enhanced Raman Scattering (SERS) Substrate Prepared by Atomic Layer Deposition of Alumina on a Multi-Layer Gold and Silver Film SO APPLIED SPECTROSCOPY LA English DT Article DE Surface-enhanced Raman scattering; SERS; Atomic layer deposition; Reusable substrates ID ISLAND FILMS; SPECTROSCOPY; NANOPARTICLES; SILICA; MORPHOLOGY; STABILITY; MOLECULES; ULTRATHIN; COLLOIDS; SPECTRA AB A thermally stable, reusable surface-enhanced Raman scattering (SERS) substrate consisting of a gold/silver hi-layer film with a protective alumina coating is reported. The film is synthesized by thermally evaporating sequential layers of gold and silver followed by coating an ultra-thin alumina layer using atomic layer deposition. The use of gold as the foundational layer improves the thermal stability of the metal bi-layer film while providing the additional ability to tune the SERS response. Deposition of the thin alumina overlayer on the hi-layer film creates a SERS substrate capable of enduring multiple high-temperature exposures to 400 degrees C with minimal loss of enhancement capabilities. We demonstrate the multi-use capability of the substrate by measuring the SERS spectrum of rhodamine 6G followed by a thermal treatment at 400 degrees C to remove the analyte. A representative substrate was used to acquire SERS spectra of rhodamine 6G up to live repeat measurements, thus establishing the reusability of this relatively simple, inexpensive, and stable substrate. C1 [Mahurin, Shannon M.; John, Joshy; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [John, Joshy; Sepaniak, Michael J.; Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. RP Mahurin, SM (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM mahurinsm@ornl.gov; dais@ornl.gov RI Dai, Sheng/K-8411-2015 OI Dai, Sheng/0000-0002-8046-3931 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy; Division of Scientific User Facilities, U.S. Department of Energy FX Research sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. Scanning electron microscopy was performed at the Shared Research Equipment (SHaRE) user facility, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy. NR 35 TC 17 Z9 17 U1 2 U2 35 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 APR PY 2011 VL 65 IS 4 BP 417 EP 422 DI 10.1366/10-05930 PG 6 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA 743IX UT WOS:000289013100010 PM 21396189 ER PT J AU Aihara, H Prieto, CA An, D Anderson, SF Aubourg, E Balbinot, E Beers, TC Berlind, AA Bickerton, SJ Bizyaev, D Blanton, MR Bochanski, JJ Bolton, AS Bovy, J Brandt, WN Brinkmann, J Brown, PJ Brownstein, JR Busca, NG Campbell, H Carr, MA Chen, YM Chiappini, C Comparat, J Connolly, N Cortes, M Croft, RAC Cuesta, AJ da Costa, LN Davenport, JRA Dawson, K Dhital, S Ealet, A Ebelke, GL Edmondson, EM Eisenstein, DJ Escoffier, S Esposito, M Evans, ML Fan, XH Castella, BF Font-Ribera, A Frinchaboy, PM Ge, JA Gillespie, BA Gilmore, G Hernandez, JIG Gott, JR Gould, A Grebel, EK Gunn, JE Hamilton, JC Harding, P Harris, DW Hawley, SL Hearty, FR Ho, S Hogg, DW Holtzman, JA Honscheid, K Inada, N Ivans, II Jiang, LH Johnson, JA Jordan, C Jordan, WP Kazin, EA Kirkby, D Klaene, MA Knapp, GR Kneib, JP Kochanek, CS Koesterke, L Kollmeier, JA Kron, RG Lampeitl, H Lang, D Le Goff, JM Lee, YS Lin, YT Long, DC Loomis, CP Lucatello, S Lundgren, B Lupton, RH Ma, ZB MacDonald, N Mahadevan, S Maia, MAG Makler, M Malanushenko, E Malanushenko, V Mandelbaum, R Maraston, C Margala, D Masters, KL McBride, CK McGehee, PM McGreer, ID Menard, B Miralda-Escude, J Morrison, HL Mullally, F Muna, D Munn, JA Murayama, H Myers, AD Naugle, T Neto, AF Nguyen, DC Nichol, RC O'Connell, RW Ogando, RLC Olmstead, MD Oravetz, DJ Padmanabhan, N Palanque-Delabrouille, N Pan, K Pandey, P Paris, I Percival, WJ Petitjean, P Pfaffenberger, R Pforr, J Phleps, S Pichon, C Pieri, MM Prada, F Price-Whelan, AM Raddick, MJ Ramos, BHF Reyle, C Rich, J Richards, GT Rix, HW Robin, AC Rocha-Pinto, HJ Rockosi, CM Roe, NA Rollinde, E Ross, AJ Ross, NP Rossetto, BM Sanchez, AG Sayres, C Schlegel, DJ Schlesinger, KJ Schmidt, SJ Schneider, DP Sheldon, E Shu, YP Simmerer, J Simmons, AE Sivarani, T Snedden, SA Sobeck, JS Steinmetz, M Strauss, MA Szalay, AS Tanaka, M Thakar, AR Thomas, D Tinker, JL Tofflemire, BM Tojeiro, R Tremonti, CA Vandenberg, J Magana, MV Verde, L Vogt, NP Wake, DA Wang, J Weaver, BA Weinberg, DH White, M White, SDM Yanny, B Yasuda, N Yeche, C Zehavi, I AF Aihara, Hiroaki Allende Prieto, Carlos An, Deokkeun Anderson, Scott F. Aubourg, Eric Balbinot, Eduardo Beers, Timothy C. Berlind, Andreas A. Bickerton, Steven J. Bizyaev, Dmitry Blanton, Michael R. Bochanski, John J. Bolton, Adam S. Bovy, Jo Brandt, W. N. Brinkmann, J. Brown, Peter J. Brownstein, Joel R. Busca, Nicolas G. Campbell, Heather Carr, Michael A. Chen, Yanmei Chiappini, Cristina Comparat, Johan Connolly, Natalia Cortes, Marina Croft, Rupert A. C. Cuesta, Antonio J. da Costa, Luiz N. Davenport, James R. A. Dawson, Kyle Dhital, Saurav Ealet, Anne Ebelke, Garrett L. Edmondson, Edward M. Eisenstein, Daniel J. Escoffier, Stephanie Esposito, Massimiliano Evans, Michael L. Fan, Xiaohui Femenia Castella, Bruno Font-Ribera, Andreu Frinchaboy, Peter M. Ge, Jian Gillespie, Bruce A. Gilmore, G. Gonzalez Hernandez, Jonay I. Gott, J. Richard Gould, Andrew Grebel, Eva K. Gunn, James E. Hamilton, Jean-Christophe Harding, Paul Harris, David W. Hawley, Suzanne L. Hearty, Frederick R. Ho, Shirley Hogg, David W. Holtzman, Jon A. Honscheid, Klaus Inada, Naohisa Ivans, Inese I. Jiang, Linhua Johnson, Jennifer A. Jordan, Cathy Jordan, Wendell P. Kazin, Eyal A. Kirkby, David Klaene, Mark A. Knapp, G. R. Kneib, Jean-Paul Kochanek, C. S. Koesterke, Lars Kollmeier, Juna A. Kron, Richard G. Lampeitl, Hubert Lang, Dustin Le Goff, Jean-Marc Lee, Young Sun Lin, Yen-Ting Long, Daniel C. Loomis, Craig P. Lucatello, Sara Lundgren, Britt Lupton, Robert H. Ma, Zhibo MacDonald, Nicholas Mahadevan, Suvrath Maia, Marcio A. G. Makler, Martin Malanushenko, Elena Malanushenko, Viktor Mandelbaum, Rachel Maraston, Claudia Margala, Daniel Masters, Karen L. McBride, Cameron K. McGehee, Peregrine M. McGreer, Ian D. Menard, Brice Miralda-Escude, Jordi Morrison, Heather L. Mullally, F. Muna, Demitri Munn, Jeffrey A. Murayama, Hitoshi Myers, Adam D. Naugle, Tracy Neto, Angelo Fausti Duy Cuong Nguyen Nichol, Robert C. O'Connell, Robert W. Ogando, Ricardo L. C. Olmstead, Matthew D. Oravetz, Daniel J. Padmanabhan, Nikhil Palanque-Delabrouille, Nathalie Pan, Kaike Pandey, Parul Paris, Isabelle Percival, Will J. Petitjean, Patrick Pfaffenberger, Robert Pforr, Janine Phleps, Stefanie Pichon, Christophe Pieri, Matthew M. Prada, Francisco Price-Whelan, Adrian M. Raddick, M. Jordan Ramos, Beatriz H. F. Reyle, Celine Rich, James Richards, Gordon T. Rix, Hans-Walter Robin, Annie C. Rocha-Pinto, Helio J. Rockosi, Constance M. Roe, Natalie A. Rollinde, Emmanuel Ross, Ashley J. Ross, Nicholas P. Rossetto, Bruno M. Sanchez, Ariel G. Sayres, Conor Schlegel, David J. Schlesinger, Katharine J. Schmidt, Sarah J. Schneider, Donald P. Sheldon, Erin Shu, Yiping Simmerer, Jennifer Simmons, Audrey E. Sivarani, Thirupathi Snedden, Stephanie A. Sobeck, Jennifer S. Steinmetz, Matthias Strauss, Michael A. Szalay, Alexander S. Tanaka, Masayuki Thakar, Aniruddha R. Thomas, Daniel Tinker, Jeremy L. Tofflemire, Benjamin M. Tojeiro, Rita Tremonti, Christy A. Vandenberg, Jan Magana, M. Vargas Verde, Licia Vogt, Nicole P. Wake, David A. Wang, Ji Weaver, Benjamin A. Weinberg, David H. White, Martin White, Simon D. M. Yanny, Brian Yasuda, Naoki Yeche, Christophe Zehavi, Idit TI THE EIGHTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST DATA FROM SDSS-III SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article DE atlases; catalogs; surveys ID SPECTROSCOPIC TARGET SELECTION; STAR-FORMING GALAXIES; 7TH DATA RELEASE; OPEN CLUSTERS; WHITE-DWARFS; USNO-B; SEGUE; RESOLUTION; TELESCOPE; CATALOG AB The Sloan Digital Sky Survey (SDSS) started a new phase in 2008 August, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements of the baryon oscillation feature in the clustering of galaxies and the quasar Ly alpha forest, and a radial velocity search for planets around similar to 8000 stars. This paper describes the first data release of SDSS-III (and the eighth counting from the beginning of the SDSS). The release includes five-band imaging of roughly 5200 deg(2) in the southern Galactic cap, bringing the total footprint of the SDSS imaging to 14,555 deg(2), or over a third of the Celestial Sphere. All the imaging data have been reprocessed with an improved sky-subtraction algorithm and a final, self-consistent photometric recalibration and flat-field determination. This release also includes all data from the second phase of the Sloan Extension for Galactic Understanding and Exploration (SEGUE-2), consisting of spectroscopy of approximately 118,000 stars at both high and low Galactic latitudes. All the more than half a million stellar spectra obtained with the SDSS spectrograph have been reprocessed through an improved stellar parameter pipeline, which has better determination of metallicity for high-metallicity stars. C1 [Bickerton, Steven J.; Carr, Michael A.; Gott, J. Richard; Gunn, James E.; Knapp, G. R.; Lang, Dustin; Loomis, Craig P.; Lupton, Robert H.; Mandelbaum, Rachel; Mullally, F.; Strauss, Michael A.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Aihara, Hiroaki; Lin, Yen-Ting; Menard, Brice; Murayama, Hitoshi; Tanaka, Masayuki; Yasuda, Naoki] Univ Tokyo, Inst Phys & Math Universe, Kashiwa, Chiba 2778583, Japan. [Allende Prieto, Carlos; Esposito, Massimiliano; Femenia Castella, Bruno; Gonzalez Hernandez, Jonay I.] Inst Astrofis Canarias, E-38205 Tenerife, Spain. [Allende Prieto, Carlos; Esposito, Massimiliano; Femenia Castella, Bruno] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain. [An, Deokkeun] Ewha Womans Univ, Dept Sci Educ, Seoul 120750, South Korea. [Anderson, Scott F.; Davenport, James R. A.; Evans, Michael L.; Hawley, Suzanne L.; Sayres, Conor; Schmidt, Sarah J.; Tofflemire, Benjamin M.] Univ Washington, Dept Astron, Seattle, WA 98195 USA. [Aubourg, Eric; Hamilton, Jean-Christophe; Magana, M. Vargas] Univ Paris Diderot, Astroparticule & Cosmol APC, F-75205 Paris 13, France. [Aubourg, Eric; Le Goff, Jean-Marc; Palanque-Delabrouille, Nathalie; Rich, James; Yeche, Christophe] CEA, Ctr Saclay, Irfu SPP, F-91191 Gif Sur Yvette, France. [Balbinot, Eduardo; Neto, Angelo Fausti] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil. [Balbinot, Eduardo; Chiappini, Cristina; da Costa, Luiz N.; Maia, Marcio A. G.; Makler, Martin; Neto, Angelo Fausti; Ogando, Ricardo L. C.; Ramos, Beatriz H. F.; Rocha-Pinto, Helio J.; Rossetto, Bruno M.] Lab Interinst E Astron LIneA, BR-20921400 Rio De Janeiro, Brazil. [Beers, Timothy C.; Lee, Young Sun] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Beers, Timothy C.; Lee, Young Sun] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA. [Berlind, Andreas A.; Dhital, Saurav; McBride, Cameron K.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Bizyaev, Dmitry; Brinkmann, J.; Ebelke, Garrett L.; Gillespie, Bruce A.; Jordan, Cathy; Jordan, Wendell P.; Klaene, Mark A.; Long, Daniel C.; Malanushenko, Elena; Malanushenko, Viktor; Naugle, Tracy; Oravetz, Daniel J.; Pan, Kaike; Simmons, Audrey E.; Snedden, Stephanie A.] Apache Point Observ, Sunspot, NM 88349 USA. [Blanton, Michael R.; Bovy, Jo; Hogg, David W.; Kazin, Eyal A.; Muna, Demitri; Price-Whelan, Adrian M.; Tinker, Jeremy L.; Weaver, Benjamin A.] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA. [Bochanski, John J.; Brandt, W. N.; Mahadevan, Suvrath; Schneider, Donald P.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. [Bolton, Adam S.; Brown, Peter J.; Brownstein, Joel R.; Dawson, Kyle; Harris, David W.; Ivans, Inese I.; Olmstead, Matthew D.; Pandey, Parul; Shu, Yiping; Simmerer, Jennifer] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Brandt, W. N.] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA. [Campbell, Heather; Edmondson, Edward M.; Lampeitl, Hubert; Maraston, Claudia; Masters, Karen L.; Nichol, Robert C.; Percival, Will J.; Pforr, Janine; Ross, Ashley J.; Thomas, Daniel; Tojeiro, Rita] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England. [Chen, Yanmei; Tremonti, Christy A.] Univ Wisconsin, Dept Astron, Madison, WI 53703 USA. [Chiappini, Cristina; Steinmetz, Matthias] Astrophys Inst Potsdam, D-14482 Potsdam, Germany. [Chiappini, Cristina] Ist Nazl Astrofis, I-34143 Trieste, Italy. [Comparat, Johan; Kneib, Jean-Paul] Univ Aix Marseille 1, CNRS, Lab Astrophys Marseille, F-13388 Marseille 13, France. [Connolly, Natalia] Hamilton Coll, Dept Phys, Clinton, NY 13323 USA. [Cortes, Marina; Ho, Shirley; Roe, Natalie A.; Ross, Nicholas P.; Schlegel, David J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Croft, Rupert A. C.] Carnegie Mellon Univ, Bruce & Astrid McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA. [Cuesta, Antonio J.; Lundgren, Britt; Padmanabhan, Nikhil; Wake, David A.] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA. [da Costa, Luiz N.; Maia, Marcio A. G.; Ogando, Ricardo L. C.; Ramos, Beatriz H. F.] Observ Nacl, BR-20921400 Rio De Janeiro, Brazil. [Ealet, Anne; Escoffier, Stephanie] Aix Marseille Univ, CNRS, IN2P3, Ctr Phys Particules Marseille, Marseille, France. [Ebelke, Garrett L.; Holtzman, Jon A.; Jordan, Wendell P.; Pfaffenberger, Robert; Vogt, Nicole P.] New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA. [Eisenstein, Daniel J.; Fan, Xiaohui; Jiang, Linhua; McGreer, Ian D.; Szalay, Alexander S.] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. [Eisenstein, Daniel J.] Harvard Coll Observ, Cambridge, MA 02138 USA. [Font-Ribera, Andreu] CSIC, IEEC, Inst Ciencies Espai, E-08193 Barcelona, Spain. [Frinchaboy, Peter M.] Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA. [Ge, Jian; Duy Cuong Nguyen; Wang, Ji] Univ Florida, Dept Astron, Bryant Space Sci Ctr, Gainesville, FL 32611 USA. [Gilmore, G.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England. [Gould, Andrew; Johnson, Jennifer A.; Kochanek, C. S.; Pieri, Matthew M.; Schlesinger, Katharine J.; Weinberg, David H.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. [Grebel, Eva K.; Sivarani, Thirupathi] Univ Heidelberg, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Germany. [Harding, Paul; Ma, Zhibo; Morrison, Heather L.; Zehavi, Idit] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA. [Hearty, Frederick R.; O'Connell, Robert W.] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA. [Honscheid, Klaus] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Inada, Naohisa] Univ Tokyo, Grad Sch Sci, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan. [Kirkby, David; Margala, Daniel] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. [Koesterke, Lars] Univ Texas Austin, Texas Adv Comp Ctr, Austin, TX 78758 USA. [Kollmeier, Juna A.] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA. [Kron, Richard G.; Yanny, Brian] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Kron, Richard G.; Sobeck, Jennifer S.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Lin, Yen-Ting] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan. [Lucatello, Sara] INAF, Osservatorio Astrono Padova, I-35122 Padua, Italy. [Mahadevan, Suvrath; Schneider, Donald P.] Penn State Univ, Ctr Exoplanets & Habitable Worlds, Davey Lab 525, University Pk, PA 16802 USA. [Makler, Martin] ICRA, Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil. [McGehee, Peregrine M.] CALTECH, IPAC, Pasadena, CA 91125 USA. [Menard, Brice] Univ Toronto, CITA, Toronto, ON M5S 3H8, Canada. [Menard, Brice; Raddick, M. Jordan; Szalay, Alexander S.; Thakar, Aniruddha R.; Vandenberg, Jan] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, Baltimore, MD 21218 USA. [Miralda-Escude, Jordi; Verde, Licia] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain. [Miralda-Escude, Jordi; Verde, Licia] Univ Barcelona, IEEC, Inst Ciencies Cosmos, E-08028 Barcelona, Spain. [Mullally, F.] NASA, Ames Res Ctr, SETI Inst, Moffett Field, CA 94035 USA. [Munn, Jeffrey A.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA. [Myers, Adam D.] Univ Illinois, Dept Astron, Urbana, IL 61801 USA. [Paris, Isabelle; Petitjean, Patrick; Pichon, Christophe; Rollinde, Emmanuel] Univ Paris 06, Inst Astrophys Paris, CNRS, UMR7095, F-75014 Paris, France. [Phleps, Stefanie; Sanchez, Ariel G.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany. [Pieri, Matthew M.] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA. [Prada, Francisco] CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain. [Reyle, Celine; Robin, Annie C.] Univ Franche Comte, Observ Besancon, Inst Utinam, F-25010 Besancon, France. [Richards, Gordon T.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Rix, Hans-Walter] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Rocha-Pinto, Helio J.; Rossetto, Bruno M.] Univ Fed Rio de Janeiro, Observ Valongo, BR-20080090 Rio De Janeiro, Brazil. [Rockosi, Constance M.] Univ Calif Santa Cruz, UCO Lick Observ, Santa Cruz, CA 95064 USA. [Sheldon, Erin] Bldg 510 Brookhaven Natl Lab Upton, Upton, NY 11973 USA. [Sivarani, Thirupathi] Indian Inst Astrophys, Bangalore 560034, Karnataka, India. [White, Martin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [White, Simon D. M.] Max Planck Inst Astrophys, D-85748 Garching, Germany. RP Strauss, MA (reprint author), Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. RI Pforr, Janine/J-3967-2015; Makler, Martin/G-2639-2012; White, Martin/I-3880-2015; Brandt, William/N-2844-2015; Rocha-Pinto, Helio/C-2719-2008; Jiang, Linhua/H-5485-2016; Croft, Rupert/N-8707-2014; Padmanabhan, Nikhil/A-2094-2012; Roe, Natalie/A-8798-2012; Yasuda, Naoki/A-4355-2011; Aihara, Hiroaki/F-3854-2010; Mandelbaum, Rachel/N-8955-2014; Ho, Shirley/P-3682-2014; Balbinot, Eduardo/E-8019-2015; Kneib, Jean-Paul/A-7919-2015; Murayama, Hitoshi/A-4286-2011; Le Goff, Jean-Marc/E-7629-2013; Tecnologias espaciai, Inct/I-2415-2013; Gonzalez Hernandez, Jonay I./L-3556-2014; Ogando, Ricardo/A-1747-2010 OI Pforr, Janine/0000-0002-3414-8391; Makler, Martin/0000-0003-2206-2651; White, Martin/0000-0001-9912-5070; Brandt, William/0000-0002-0167-2453; Jiang, Linhua/0000-0003-4176-6486; Croft, Rupert/0000-0003-0697-2583; Kirkby, David/0000-0002-8828-5463; Miralda-Escude, Jordi/0000-0002-2316-8370; Escoffier, Stephanie/0000-0002-2847-7498; Cortes, Marina/0000-0003-0485-3767; Schmidt, Sarah/0000-0002-7224-7702; Cuesta Vazquez, Antonio Jose/0000-0002-4153-9470; Bovy, Jo/0000-0001-6855-442X; Verde, Licia/0000-0003-2601-8770; /0000-0002-1891-3794; Masters, Karen/0000-0003-0846-9578; Hogg, David/0000-0003-2866-9403; Davenport, James/0000-0002-0637-835X; Aihara, Hiroaki/0000-0002-1907-5964; Mandelbaum, Rachel/0000-0003-2271-1527; Ho, Shirley/0000-0002-1068-160X; Balbinot, Eduardo/0000-0002-1322-3153; Kneib, Jean-Paul/0000-0002-4616-4989; Gonzalez Hernandez, Jonay I./0000-0002-0264-7356; Ogando, Ricardo/0000-0003-2120-1154 FU Alfred P. Sloan Foundation; National Science Foundation; US Department of Energy; University of Arizona; Brazilian Participation Group; Brookhaven National Laboratory; University of Cambridge; University of Florida; French Participation Group; German Participation Group; Instituto de Astrofisica de Canarias; Michigan State/Notre Dame/JINA Participation Group; Johns Hopkins University; Lawrence Berkeley National Laboratory; Max Planck Institute for Astrophysics; New Mexico State University; New York University; Ohio State University; Pennsylvania State University; University of Portsmouth; Princeton University; Spanish Participation Group; University of Tokyo; University of Utah; Vanderbilt University; University of Virginia; University of Washington; Yale University FX We thank the referee, Andrew West, for comments that improved the paper. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the US Department of Energy. The SDSS-III Web site is http://www.sdss3.org/.; SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration including the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, University of Cambridge, University of Florida, the French Participation Group, the German Participation Group, the Instituto de Astrofisica de Canarias, the Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins University, Lawrence Berkeley National Laboratory, Max Planck Institute for Astrophysics, New Mexico State University, New York University, Ohio State University, Pennsylvania State University, University of Portsmouth, Princeton University, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, and Yale University. NR 86 TC 725 Z9 731 U1 7 U2 54 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0067-0049 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD APR PY 2011 VL 193 IS 2 AR 29 DI 10.1088/0067-0049/193/2/29 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 743ZG UT WOS:000289059200007 ER PT J AU Kholod, YA Gryn'ova, G Gorb, L Hill, FC Leszczynski, J AF Kholod, Yana A. Gryn'ova, Ganna Gorb, Leonid Hill, Frances C. Leszczynski, Jerzy TI Evaluation of the dependence of aqueous solubility of nitro compounds on temperature and salinity: A COSMO-RS simulation SO CHEMOSPHERE LA English DT Article DE Aqueous solubility; Seawater; Nitro compounds; COSMO-RS ID PURE WATER; MICROBIAL-DEGRADATION; MARINE SEDIMENT; SCREENING MODEL; REAL SOLVENTS; EXPLOSIVES; PREDICTION; SEAWATER; 2,6-DINITROTOLUENE; PHOTODEGRADATION AB The solubility in pure and saline water at various temperatures was calculated for selected nitro compounds (nitrobenzene, 1,3,5-trinitrobenzene, 2-nitrotoluene, 3-nitrotoluene, 4-nitrotoluene, 2,4-dinitrotoluene, 2,6-dinitrotoluene, 2,3-dinitrotoluene, 3,4-dinitrotoluene, 2,4,6-trinitrotoluene) using the Conductor-like Screening model for Real Solvents (COSMO-RS). The results obtained were compared with experimental values. The COSMO-RS predictions have shown high accuracy in reproducing the trends of aqueous solubilities for both temperature and salinity. The proposed methodology was then applied to predict the aqueous solubilities of 19 nitro compounds in the temperature range of 5-50 degrees C in saline solutions. The salting-out parameters of the Setschenow equation were also calculated. The predicted salting-out parameters were overestimated when compared to the measured values, but these parameters can still be used for qualitative estimation of the trends. (c) 2010 Elsevier Ltd. All rights reserved. C1 [Kholod, Yana A.; Gryn'ova, Ganna; Leszczynski, Jerzy] Jackson State Univ, Dept Chem, Interdisciplinary Ctr Nanotox, Jackson, MS 39217 USA. [Gorb, Leonid] SpecPro Inc, Huntsville, AL 35805 USA. [Hill, Frances C.; Leszczynski, Jerzy] USA Army ERDC, Vicksburg, MS 39180 USA. RP Kholod, YA (reprint author), Iowa State Univ, Ames Lab US DOE, 201 Spedding Hall, Ames, IA 50011 USA. EM yana@iastate.edu RI Gryn'ova, Ganna/F-5931-2012 OI Gryn'ova, Ganna/0000-0003-4229-939X FU United States Army Corps of Engineers by the USAERDC FX The use of trade, product, or firm names in this report is for descriptive purposes only and does not imply endorsement by the US Government. Results in this study were funded and obtained from research conducted under the Environmental Quality Technology Program of the United States Army Corps of Engineers by the USAERDC. Permission was granted by the Chief of Engineers to publish this information. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. The authors thank Professor Rebecca Toghiani of the Mississippi State University for enlightening discussions. NR 37 TC 11 Z9 11 U1 0 U2 22 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-6535 J9 CHEMOSPHERE JI Chemosphere PD APR PY 2011 VL 83 IS 3 BP 287 EP 294 DI 10.1016/j.chemosphere.2010.12.065 PG 8 WC Environmental Sciences SC Environmental Sciences & Ecology GA 745RT UT WOS:000289184100010 PM 21215986 ER PT J AU Isiklan, M Saeed, MA Pramanik, A Wong, BM Fronczek, FR Hossain, MA AF Isiklan, Muhammet Saeed, Musabbir A. Pramanik, Avijit Wong, Bryan M. Fronczek, Frank R. Hossain, Md Alamgir TI A C-3 Symmetric Nitrate Complex with a Thiophene-Based Tripodal Receptor SO CRYSTAL GROWTH & DESIGN LA English DT Article ID ANION-BINDING; NONCOVALENT INTERACTIONS; ENCAPSULATION; COORDINATION; RECOGNITION; SELECTIVITY; LIGANDS; AMIDE AB A thiophene-based tripodal receptor has been synthesized, and its complexes with nitrate and iodide have been determined by single-crystal X-ray analysis. In the nitrate complex, one nitrate is encapsulated in a selective orientation, forming a C-3 symmetric complex, which is bonded to three protonated secondary amines with six NH center dot center dot center dot O bonds. The anion is coordinated in a plane perpendicular to the principal rotation axis passing through the tertiary nitrogen of the receptor and the nitrogen of the encapsulated nitrate. High-level DFT calculations support the crystallographic results, demonstrating that an adduct with trigonal binding of three oxygen atoms is more stable than that of one oxygen atom of the encapsulate nitrate. On the other hand, in the structure of the iodide complex, all three iodides lie outside the cavity. H-1 NMR titration studies indicate that the receptor forms a 1:1 complex with nitrate yielding a binding constant of K = 315 M-1 in chloroform, showing a moderate selectivity over halides and perchlorate. C1 [Isiklan, Muhammet; Saeed, Musabbir A.; Pramanik, Avijit; Hossain, Md Alamgir] Jackson State Univ, Dept Chem & Biochem, Jackson, MS 39217 USA. [Wong, Bryan M.] Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA. [Fronczek, Frank R.] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA. RP Hossain, MA (reprint author), Jackson State Univ, Dept Chem & Biochem, Jackson, MS 39217 USA. EM alamgir@chem.jsums.edu RI Wong, Bryan/B-1663-2009 OI Wong, Bryan/0000-0002-3477-8043 FU National Science Foundation [CHE-1056927, CHE-0821357]; National Institute of Health [G12RR013459]; [LEQSF (1999-2000)-ENH-TR-13] FX The National Science Foundation is gratefully acknowledged for a CAREER award (CHE-1056927) to M.A.H. The work was supported by the National Institute of Health (G12RR013459). The NMR instrument used for this work was funded by the National Science Foundation (CHE-0821357). Purchase of the diffractometer was made possible by Grant No. LEQSF (1999-2000)-ENH-TR-13, administered by the Louisiana Board of Regents. NR 36 TC 17 Z9 17 U1 1 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1528-7483 J9 CRYST GROWTH DES JI Cryst. Growth Des. PD APR PY 2011 VL 11 IS 4 BP 959 EP 963 DI 10.1021/cg2001859 PG 5 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA 743WO UT WOS:000289050100016 PM 21552352 ER PT J AU Rowland, CE Cantos, PM Toby, BH Frisch, M Deschamps, JR Cahill, CL AF Rowland, Clare E. Cantos, Paula M. Toby, Brian H. Frisch, Mark Deschamps, Jeffrey R. Cahill, Christopher L. TI Controlling Disulfide Bond Formation and Crystal Growth from 2-Mercaptobenzoic Acid SO CRYSTAL GROWTH & DESIGN LA English DT Article ID SITU LIGAND SYNTHESES; IN-SITU; HYDROTHERMAL SYNTHESIS; COORDINATION POLYMERS; THIOLS; OXIDATION; CHEMISTRY; EFFICIENT; COMPLEX; MILD AB We report disulfide bond formation from 2-mercaptobenzoic acid (2-MBA) under hydrothermal conditions as a function of pH. Under acidic conditions, 2-MBA remains unchanged. Upon increasing pH, however, we observe 50% oxidation to 2,2'-disulfanediyldibenzoic acid (2,2'-DSBA), which is isolated as a cocrystal of both the thiol and disulfide molecules. At neutral pH, we observe complete oxidation and concurrent crystal growth. The pH sensitivity of this system allows targeting crystals of specific composition from simple building units through a straightforward pH manipulation. C1 [Rowland, Clare E.; Cantos, Paula M.; Cahill, Christopher L.] George Washington Univ, Dept Chem, Washington, DC 20052 USA. [Toby, Brian H.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Frisch, Mark; Deschamps, Jeffrey R.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. RP Cahill, CL (reprint author), George Washington Univ, Dept Chem, 725 21st St NW, Washington, DC 20052 USA. EM cahill@gwu.edu RI Rowland, Clare/C-2704-2013; Toby, Brian/F-3176-2013; OI Rowland, Clare/0000-0002-5474-5257; Toby, Brian/0000-0001-8793-8285; Deschamps, Jeffrey/0000-0001-5845-0010 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001089]; National Science Foundation [DMR-0348982, DMR0419754]; Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This material is based upon work supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001089. The research was also supported in part by the Office of Naval Research and the Naval Research Laboratory. X-ray diffraction equipment was purchased with National Science Foundation funding (DMR-0348982 and DMR0419754). Use of the Advanced Photon Source (11-BM) at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 42 TC 20 Z9 20 U1 0 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1528-7483 J9 CRYST GROWTH DES JI Cryst. Growth Des. PD APR PY 2011 VL 11 IS 4 BP 1370 EP 1374 DI 10.1021/cg101619y PG 5 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA 743WO UT WOS:000289050100067 ER PT J AU Koenigsmann, C Wong, SS AF Koenigsmann, Christopher Wong, Stanislaus S. TI One-dimensional noble metal electrocatalysts: a promising structural paradigm for direct methanol fuel cells SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID OXYGEN REDUCTION REACTION; PLATINUM-MONOLAYER ELECTROCATALYSTS; POLYMER-ELECTROLYTE MEMBRANES; PT/C CATALYTIC CATHODE; SITU ATR-SEIRAS; ACID-SOLUTIONS; DURABILITY ENHANCEMENT; KINETIC-PARAMETERS; TRANSITION-METALS; O-2 REDUCTION AB In this perspective, the catalytic shortfalls of contemporary DMFCs are discussed in the context of the materials that are currently being employed as electrocatalysts in both the anode and cathode. In light of these shortfalls, the inherent advantages of one-dimensional (1D) nanostructures are highlighted so as to demonstrate their potential as efficient, robust, and active replacements for contemporary nanoparticulate electrocatalysts. Finally, we review in detail the recent applications of 1D nanostructured electrocatalysts as both anodes and cathodes, and explore their potentially promising results towards improving DMFC efficiency and cost-effectiveness. In the case of cathode electrocatalysts, our group has recently prepared both 200 nm platinum nanotubes and ultrathin 2 nm platinum nanowires, which evinced two-fold and seven-fold enhancements in area specific ORR activity, respectively, as compared with contemporary commercial Pt nanoparticles. Similarly, the development of one-dimensional anodic electrocatalysts such as alloyed PtRu and PtCo nanowires, hierarchical Pt similar to Pd nanowires, and segmented PtRu systems have yielded promising enhancements towards methanol oxidation. C1 [Koenigsmann, Christopher; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Koenigsmann, C (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. EM sswong@notes.cc.sunysb.edu NR 118 TC 175 Z9 178 U1 26 U2 157 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 APR PY 2011 VL 4 IS 4 BP 1161 EP 1176 DI 10.1039/c0ee00197j PG 16 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 743EV UT WOS:000289001400006 ER PT J AU Boswell, R Collett, TS AF Boswell, Ray Collett, Timothy S. TI Current perspectives on gas hydrate resources SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID GULF-OF-MEXICO; GLOBAL CARBON-CYCLE; METHANE HYDRATE; CONTINENTAL-SLOPE; WORLD OCEAN; SEDIMENTS; ENERGY; RIDGE; ACCUMULATIONS; CONSTRAINTS AB For the past three decades, discussion of naturally-occurring gas hydrates has been framed by a series of assessments that indicate enormous global volumes of methane present within gas hydrate accumulations. At present, these estimates continue to range over several orders of magnitude, creating great uncertainty in assessing those two gas hydrate issues that relate most directly to resource volumes - gas hydrate's potential as an energy resource and its possible role in ongoing climate change. However, a series of recent field expeditions have provided new insights into the nature of gas hydrate occurrence; perhaps most notably, the understanding that gas hydrates occur in a wide variety of geologic settings and modes of occurrence. These fundamental differences - which include gas hydrate concentration, host lithology, distribution within the sediment matrix, burial depth, water depth, and many others - can now be incorporated into evaluations of gas hydrate energy resource and environmental issues. With regard to energy supply potential, field data combined with advanced numerical simulation have identified gas-hydrate-bearing sands as the most feasible initial targets for energy recovery. The first assessments of potential technically-recoverable resources are now occurring, enabling a preliminary estimate of ultimate global recoverable volumes on the order of similar to 3 x 10(13) m(3) (10(15) ft(3); similar to 15 GtC). Other occurrences, such as gas hydrate-filled fractures in clay-dominated reservoirs, may also become potential energy production targets in the future; but as yet, no production concept has been demonstrated. With regard to the climate implications of gas hydrate, an analogous partitioning of global resources to determine that portion most prone to dissociation during specific future warming scenarios is needed. At present, it appears that these two portions of total gas hydrate resources (those that are the most likely targets for gas extraction and those that are the most likely to respond in a meaningful way to climate change) will be largely exclusive, as those deposits that are the most amenable to production (the more deeply buried and localized accumulations) are also those that are the most poorly coupled to oceanic and atmospheric conditions. C1 [Boswell, Ray] US DOE, Natl Energy Technol Lab, Morgantown, WV USA. [Collett, Timothy S.] US Geol Survey, Denver, CO 80225 USA. RP Boswell, R (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV USA. EM ray.boswell@netl.doe.gov; tcollett@usgs.gov OI Boswell, Ray/0000-0002-3824-2967 NR 86 TC 171 Z9 177 U1 10 U2 124 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 APR PY 2011 VL 4 IS 4 BP 1206 EP 1215 DI 10.1039/c0ee00203h PG 10 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 743EV UT WOS:000289001400008 ER PT J AU Jung, HG Myung, ST Yoon, CS Son, SB Oh, KH Amine, K Scrosati, B Sun, YK AF Jung, Hun-Gi Myung, Seung-Taek Yoon, Chong Seung Son, Seoung-Bum Oh, Kyu Hwan Amine, Khalil Scrosati, Bruno Sun, Yang-Kook TI Microscale spherical carbon-coated Li4Ti5O12 as ultra high power anode material for lithium batteries SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID STRAIN INSERTION MATERIAL; ION BATTERIES; ELECTRODE MATERIAL; RATE-CAPABILITY; SPINEL OXIDES; CELLS; ELECTROCHEMISTRY; SYSTEM; LI4/3TI5/3O4; SAFETY AB Microscale C-Li4Ti5O12 particles with high tap density were synthesized by a simple solid-state reaction using TiO2, Li2CO3, and pitch. The effect of the carbon content on the physicochemical and electrochemical properties of this material was extensively studied. On calcination of the particles at high temperature in an inert atmosphere, the uniformly coated carbon layer from pitch inhibited the growth of primary particles, maintaining the spherical morphology, similar to the TiO2 precursor in size and shape, and also enabling partial reduction of the starting Ti4+ to Ti3+. Excellent electronic conductivity of the C-coated Li4Ti5O12 resulted from the presence of the highly conducting carbon coating layer and the mixed valence state of Ti3+ and Ti4+. Both the nanoporous morphology and highly conducting carbon coating layer in Li4Ti5O12 particles gave rise to ultra high rate capability. C1 [Jung, Hun-Gi; Son, Seoung-Bum; Scrosati, Bruno; Sun, Yang-Kook] Hanyang Univ, Dept WCU Energy Engn, Seoul 133791, South Korea. [Jung, Hun-Gi; Sun, Yang-Kook] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea. [Myung, Seung-Taek] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan. [Yoon, Chong Seung] Hanyang Univ, Dept Mat Sci & Engn, Seoul 133791, South Korea. [Oh, Kyu Hwan] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea. [Amine, Khalil] Argonne Natl Lab, Electrochem Technol Program, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Scrosati, Bruno] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy. RP Jung, HG (reprint author), Hanyang Univ, Dept WCU Energy Engn, Seoul 133791, South Korea. EM amine@anl.gov; bruno.scrosati@uniroma1.it; yksun@hanyang.ac.kr RI Sun, Yang-Kook/B-9157-2013; Amine, Khalil/K-9344-2013; Son, Seoung-Bum/C-6783-2014; Jung, Hun-Gi/P-8305-2014 OI Sun, Yang-Kook/0000-0002-0117-0170; FU Korean government (MEST) [2009-0092780]; WCU (World Class University) through the Korea Science and Engineering Foundation by Education, Science, and Technology [R31-2008-000-10092] FX This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (no. 2009-0092780) and by the WCU (World Class University) program through the Korea Science and Engineering Foundation by Education, Science, and Technology (R31-2008-000-10092). NR 34 TC 248 Z9 249 U1 32 U2 220 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 APR PY 2011 VL 4 IS 4 BP 1345 EP 1351 DI 10.1039/c0ee00620c PG 7 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 743EV UT WOS:000289001400027 ER PT J AU Koech, PK Rainbolt, JE Bearden, MD Zheng, F Heldebrant, DJ AF Koech, Phillip K. Rainbolt, James E. Bearden, Mark D. Zheng, Feng Heldebrant, David J. TI Chemically selective gas sweetening without thermal-swing regeneration SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID HYDROGEN-SULFIDE; IONIC LIQUIDS; SOLVENT AB Natural gas purifications using chemically selective hydrogen sulfide (H2S) sorbents could be more efficient if chemical selectivity for H2S could be maintained without thermal regeneration of the sorbent. We used tertiary alkanolamines to reversibly capture H2S in the absence of water to produce hydrosulfide-based ionic liquids in high yield. These alkanolammonium hydrosulfide ionic liquids release H2S by exposure to inert gas or by mild heating. H2S can be rapidly and nearly quantitatively released at ambient temperature from the alkanolammonium hydrosulfide ionic liquids by the addition of nonpolar antisolvents, some of which naturally phase separate from the spent alkanolamine. The antisolvent-induced regeneration of the alkanolamine potentially allows an efficient H2S gas scrubbing process that is chemically selective and can be operated continuously at or near ambient temperature. C1 [Koech, Phillip K.; Rainbolt, James E.; Bearden, Mark D.; Zheng, Feng; Heldebrant, David J.] Pacific NW Natl Lab, Richland, WA 99253 USA. RP Koech, PK (reprint author), Pacific NW Natl Lab, Richland, WA 99253 USA. EM david.heldebrant@pnl.gov RI Zheng, Feng/C-7678-2009; OI Zheng, Feng/0000-0002-5427-1303; Koech, Phillip/0000-0003-2996-0593 FU Battelle Pacific Northwest Division FX This work was funded by Battelle Pacific Northwest Division's Independent Research and Development Program. NR 17 TC 17 Z9 17 U1 1 U2 20 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1754-5692 EI 1754-5706 J9 ENERG ENVIRON SCI JI Energy Environ. Sci. PD APR PY 2011 VL 4 IS 4 BP 1385 EP 1390 DI 10.1039/c0ee00839g PG 6 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 743EV UT WOS:000289001400033 ER PT J AU Meng, H Wang, CX Shen, PK Wu, G AF Meng, Hui Wang, Chengxin Shen, Pei Kang Wu, Gang TI Palladium thorn clusters as catalysts for electrooxidation of formic acid SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID SHAPE-CONTROLLED SYNTHESIS; ALCOHOL FUEL-CELLS; VAPOR-DEPOSITION; NANOWIRE ARRAYS; OXIDATION; ELECTROCATALYSTS; NANOCRYSTALS; GROWTH; ELECTRODEPOSITION; NANOSTRUCTURES AB Pure palladium thorn clusters were synthesized using the electrodeposition method. The clusters were composed of several thorns growing on one basis. Each thorn was composed of hexahedral units with decreasing sizes. The whole thorn was a single crystal along the < 220 > direction. The cluster was synthesized by square wave electrodeposition. By changing the deposition factors, a mixture of thorns and particles was synthesized, where each thorn grew on one basis and the thorn was composed of dodecahedral bases. Compared with the mixture, the cluster had higher activity toward the electrooxidation of formic acid, and also much higher activity than Pd powder, which was evidenced by the improved current density and onset potential of formic acid oxidation. The fact that pure thorn clusters had a higher catalytic activity than the mixture of thorns and particles proved that the higher activity was ascribed to the single crystal property of the thorns. C1 [Meng, Hui; Wang, Chengxin; Shen, Pei Kang] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China. [Wu, Gang] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Meng, H (reprint author), Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Key Lab Low Carbon Chem & Energy Conservat Guangd, Guangzhou 510275, Guangdong, Peoples R China. EM menghui@mail.sysu.edu.cn; stsspk@mail.sysu.edu.cn RI Wu, Gang/E-8536-2010; Shen, Pei Kang/O-2004-2013 OI Wu, Gang/0000-0003-4956-5208; FU National Natural Science Foundation of China [21073241, U1034003]; China National 863 Program [2009AA034400]; Foundation of the State Key Laboratory of Optoelectronic Materials and Technologies [2010-ZY-4-7]; Sun Yat-sen University [30000-3126170]; Guangdong Province [2010-30000-4202493]; Chinese Academy of Sciences [2010-30000-4202493]; Ministry of Education of China [20100171120022] FX The work was supported by the National Natural Science Foundation of China (21073241, U1034003) and the China National 863 Program (2009AA034400) and the Foundation of the State Key Laboratory of Optoelectronic Materials and Technologies (2010-ZY-4-7). Dr H. Meng thanks the New Teacher Funding of Sun Yat-sen University (30000-3126170), Strategic Cooperation Project between Guangdong Province and Chinese Academy of Sciences (2010-30000-4202493) and Doctoral Fund of Ministry of Education of China (20100171120022). NR 32 TC 26 Z9 27 U1 4 U2 41 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 APR PY 2011 VL 4 IS 4 BP 1522 EP 1526 DI 10.1039/c0ee00702a PG 5 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA 743EV UT WOS:000289001400052 ER PT J AU Jardin, SC AF Jardin, S. C. TI SOME CONSIDERATIONS AND TECHNIQUES FOR THE PREDICTIVE SIMULATION OF GLOBAL INSTABILITIES IN TOKAMAKS SO FUSION SCIENCE AND TECHNOLOGY LA English DT Article DE tokamak plasma control; MHD instabilities; computational physics ID FEEDBACK STABILIZATION; PLASMA; MAGNETOHYDRODYNAMICS; DIFFUSION; EVOLUTION AB A simple rigid plasma model is used to show that axisymmetric plasma instabilities (in two dimensions) will occur on a resistive time scale and do not depend on the plasma mass. This is the justification for ignoring the inertial term in two-dimensional studies of plasma shape control and vertical stability. In three dimensions, it is not normally possible to ignore the inertial terms when computing plasma instabilities. This results in a stiff system of equations (with multiple time scales) in which the driving terms causing plasma instabilities are small compared with the stable compressive terms. Techniques are described for implicit time integration and for representing the vector fields in a way to facilitate obtaining accurate solutions for plasma instabilities when a strong background magnetic field is present. C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Jardin, SC (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM jardin@pppl.gov FU CEMM; SWIM Sci-DAC; U.S. Department of Energy [DE-AC02-76CH03073] FX This work was supported by the CEMM and SWIM Sci-DAC grants and by U.S. Department of Energy contract DE-AC02-76CH03073. NR 40 TC 0 Z9 0 U1 0 U2 6 PU AMER NUCLEAR SOC PI LA GRANGE PK PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA SN 1536-1055 J9 FUSION SCI TECHNOL JI Fusion Sci. Technol. PD APR PY 2011 VL 59 IS 3 SI SI BP 519 EP 525 PG 7 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 745OP UT WOS:000289175200007 ER PT J AU Reimerdes, H Buttery, RJ Garofalo, AM In, Y La Haye, RJ Lanctot, MJ Okabayashi, M Park, JK Schaffer, MJ Strait, EI Volpe, FA AF Reimerdes, H. Buttery, R. J. Garofalo, A. M. In, Y. La Haye, R. J. Lanctot, M. J. Okabayashi, M. Park, J. -K. Schaffer, M. J. Strait, E. I. Volpe, F. A. TI ERROR FIELD TOLERANCE AND ERROR FIELD CORRECTION STRATEGIES AND THEIR APPLICABILITY TO ITER SO FUSION SCIENCE AND TECHNOLOGY LA English DT Article DE error field threshold/tolerance; error field correction; locked modes; ITER ID DIII-D TOKAMAK; RESONANT MAGNETIC PERTURBATIONS; PLASMA FLUID ROTATION; COMPASS-C TOKAMAK; MHD STABILITY; OPERATIONAL LIMITS; TEARING MODES; LOCKED MODES; CHAPTER 3; STABILIZATION AB Tokamak plasmas can be sensitive to external non-axisymmetric magnetic perturbations that are several orders of magnitude smaller than the axisymmetric field. These perturbations, which are usually undesired and are referred to as error fields, can limit operation by braking the plasma rotation until an instability such as a tearing mode, a resistive wall mode, or an error field-driven locked mode leads to an unacceptable confinement degradation or a disruption. Auxiliary heating can have two competing effects: On one hand higher beta leads to a degradation of the error field tolerance through plasma amplification and stronger braking, and on the other hand higher toroidal rotation can tolerate a higher magnetic braking torque. A widely used technique to detect and correct error fields is based on the characteristic density dependence of the error field tolerance in ohmic plasmas. An alternative technique is based on the measurable plasma amplification of the error field in high-beta plasmas. However, the detection and correction of error fields in ITER will require a modification of the present techniques in order to avoid disruptions and deal with insufficient plasma amplification of the error field at low beta, before the full set of auxiliary heating systems will be available. The adaptation of current techniques to address these concerns is likely, but an experimental demonstration as well as an improved physics basis is needed and remains the subject of current research. C1 [Reimerdes, H.; Lanctot, M. J.] Columbia Univ, New York, NY 10027 USA. [Buttery, R. J.; Garofalo, A. M.; La Haye, R. J.; Schaffer, M. J.; Strait, E. I.] Gen Atom Co, San Diego, CA USA. [In, Y.] FAR TECH Inc, San Diego, CA USA. [Okabayashi, M.; Park, J. -K.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Volpe, F. A.] Univ Wisconsin, Madison, WI USA. RP Reimerdes, H (reprint author), Columbia Univ, New York, NY 10027 USA. EM reimerdes@fusion.gat.com RI Volpe, Francesco/D-2994-2009; Lanctot, Matthew J/O-4979-2016 OI Volpe, Francesco/0000-0002-7193-7090; Lanctot, Matthew J/0000-0002-7396-3372 FU U.S. Department of Energy [DE-FG02-04ER54761, DE-FC02-04ER54698k, DE-AC02-09CH11466, DE-FG02-89ER53296] FX This work was supported by the U.S. Department of Energy under DE-FG02-04ER54761, DE-FC02-04ER54698k, DE-AC02-09CH11466, and DE-FG02-89ER53296. NR 56 TC 8 Z9 8 U1 0 U2 7 PU AMER NUCLEAR SOC PI LA GRANGE PK PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA SN 1536-1055 J9 FUSION SCI TECHNOL JI Fusion Sci. Technol. PD APR PY 2011 VL 59 IS 3 SI SI BP 572 EP 585 PG 14 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 745OP UT WOS:000289175200012 ER PT J AU Ozdemir, A Fisher-Aylor, KI Pepke, S Samanta, M Dunipace, L Mccue, K Zeng, LC Ogawa, N Wold, BJ Stathopoulos, A AF Ozdemir, Anil Fisher-Aylor, Katherine I. Pepke, Shirley Samanta, Manoj Dunipace, Leslie McCue, Kenneth Zeng, Lucy Ogawa, Nobuo Wold, Barbara J. Stathopoulos, Angelike TI High resolution mapping of Twist to DNA in Drosophila embryos: Efficient functional analysis and evolutionary conservation SO GENOME RESEARCH LA English DT Article ID TRANSCRIPTION FACTOR-BINDING; GENOME-WIDE ANALYSIS; LOOP-HELIX PROTEINS; NEUROGENIC GENE-EXPRESSION; MESODERM DEVELOPMENT; BHLH PROTEIN; CHIP-SEQ; DORSAL; SEQUENCE; REGIONS AB Cis-regulatory modules (CRMs) function by binding sequence specific transcription factors, but the relationship between in vivo physical binding and the regulatory capacity of factor-bound DNA elements remains uncertain. We investigate this relationship for the well-studied Twist factor in Drosophila melanogaster embryos by analyzing genome-wide factor occupancy and testing the functional significance of Twist occupied regions and motifs within regions. Twist ChIP-seq data efficiently identified previously studied Twist-dependent CRMs and robustly predicted new CRM activity in transgenesis, with newly identified Twist-occupied regions supporting diverse spatiotemporal patterns (>74% positive, n = 31). Some, but not all, candidate CRMs require Twist for proper expression in the embryo. The Twist motifs most favored in genome ChIP data (in vivo) differed from those most favored by Systematic Evolution of Ligands by EXponential enrichment (SELEX) (in vitro). Furthermore, the majority of ChIP-seq signals could be parsimoniously explained by a CABVTG motif located within 50 bp of the ChIP summit and, of these, CACATG was most prevalent. Mutagenesis experiments demonstrated that different Twist E-box motif types are not fully interchangeable, suggesting that the ChIP-derived consensus (CABVTG) includes sites having distinct regulatory outputs. Further analysis of position, frequency of occurrence, and sequence conservation revealed significant enrichment and conservation of CABVTG E-box motifs near Twist ChIP-seq signal summits, preferential conservation of +/- 150 bp surrounding Twist occupied summits, and enrichment of GA- and CA-repeat sequences near Twist occupied summits. Our results show that high resolution in vivo occupancy data can be used to drive efficient discovery and dissection of global and local cis-regulatory logic. C1 [Ozdemir, Anil; Fisher-Aylor, Katherine I.; Dunipace, Leslie; McCue, Kenneth; Wold, Barbara J.; Stathopoulos, Angelike] CALTECH, Div Biol, Pasadena, CA 91125 USA. [Pepke, Shirley] CALTECH, Ctr Adv Comp Res, Pasadena, CA 91125 USA. [Samanta, Manoj] Systemix Inst, Redmond, WA 98053 USA. [Zeng, Lucy; Ogawa, Nobuo] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wold, BJ (reprint author), CALTECH, Div Biol, Pasadena, CA 91125 USA. EM woldb@caltech.edu; angelike@caltech.edu FU NSF; Gordon and Betty Moore Foundation; Department of Energy [DE-AC02-05CH11231]; Functional Genomics Resource Center of the Caltech Beckman Institute; NIH [R01GM077668, U54HG004576]; Bren Chair FX We thank the Caltech Jacobs Genome Facility members I. Antoshechkin and L. Schaeffer for library building and DNA sequencing, as well as D. Trout, B. King, and H. Amrhein for primary sequence data processing and visualization. We are grateful to A. Mortazavi and A. Kirilusha (Caltech Biology) for software and discussion of analysis; M. Biggin and S. Celniker (Lawrence Berkeley Lab) for sharing unpublished data; and M. Levine (University of California at Berkeley) for antibodies. K.I.F.-A. was funded by a NSF pre-doctoral fellowship, and S. P. was funded by The Gordon and Betty Moore Foundation. Work at Lawrence Berkeley National Laboratory was conducted under Department of Energy contract DE-AC02-05CH11231. This work was funded by the Functional Genomics Resource Center of the Caltech Beckman Institute, NIH grant R01GM077668 (A. S.), NIH grant U54HG004576 (B.J.W.), and the Bren Chair (B.J.W). NR 52 TC 27 Z9 27 U1 0 U2 9 PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT PI COLD SPRING HARBOR PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA SN 1088-9051 J9 GENOME RES JI Genome Res. PD APR PY 2011 VL 21 IS 4 BP 566 EP 577 DI 10.1101/gr.104018.109 PG 12 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Genetics & Heredity SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Genetics & Heredity GA 744BN UT WOS:000289067800007 PM 21383317 ER PT J AU Yang, XH Tschaplinski, TJ Hurst, GB Jawdy, S Abraham, PE Lankford, PK Adams, RM Shah, MB Hettich, RL Lindquist, E Kalluri, UC Gunter, LE Pennacchio, C Tuskan, GA AF Yang, Xiaohan Tschaplinski, Timothy J. Hurst, Gregory B. Jawdy, Sara Abraham, Paul E. Lankford, Patricia K. Adams, Rachel M. Shah, Manesh B. Hettich, Robert L. Lindquist, Erika Kalluri, Udaya C. Gunter, Lee E. Pennacchio, Christa Tuskan, Gerald A. TI Discovery and annotation of small proteins using genomics, proteomics, and computational approaches SO GENOME RESEARCH LA English DT Article ID OPEN READING FRAMES; CELL-TO-CELL; RECEPTOR-KINASE; SOFTWARE; DATABASE; GENES; TOOLS; INTERPROSCAN; RESOURCE; CLAVATA1 AB Small proteins (10-200 amino acids [aa] in length) encoded by short open reading frames (sORF) play important regulatory roles in various biological processes, including tumor progression, stress response, flowering, and hormone signaling. However, ab initio discovery of small proteins has been relatively overlooked. Recent advances in deep transcriptome sequencing make it possible to efficiently identify sORFs at the genome level. In this study, we obtained similar to 2.6 million expressed sequence tag (EST) reads from Populus deltoides leaf transcriptome and reconstructed full-length transcripts from the EST sequences. We identified an initial set of 12,852 sORFs encoding proteins of 10-200 aa in length. Three computational approaches were then used to enrich for bona fide protein-coding sORFs from the initial sORF set: (1) codingpotential prediction, (2) evolutionary conservation between P. deltoides and other plant species, and (3) gene family clustering within P. deltoides. As a result, a high-confidence sORF candidate set containing 1469 genes was obtained. Analysis of the protein domains, non-protein-coding RNA motifs, sequence length distribution, and protein mass spectrometry data supported this high-confidence sORF set. In the high-confidence sORF candidate set, known protein domains were identified in 1282 genes (higher-confidence sORF candidate set), out of which 611 genes, designated as highest-confidence candidate sORF set, were supported by proteomics data. Of the 611 highest-confidence candidate sORF genes, 56 were new to the current Populus genome annotation. This study not only demonstrates that there are potential sORF candidates to be annotated in sequenced genomes, but also presents an efficient strategy for discovery of sORFs in species with no genome annotation yet available. C1 [Yang, Xiaohan; Tschaplinski, Timothy J.; Jawdy, Sara; Lankford, Patricia K.; Shah, Manesh B.; Kalluri, Udaya C.; Gunter, Lee E.; Tuskan, Gerald A.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Yang, Xiaohan; Tschaplinski, Timothy J.; Jawdy, Sara; Abraham, Paul E.; Adams, Rachel M.; Hettich, Robert L.; Kalluri, Udaya C.; Gunter, Lee E.; Tuskan, Gerald A.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Hurst, Gregory B.; Hettich, Robert L.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Abraham, Paul E.; Adams, Rachel M.] Univ Tennessee, Grad Sch Genome Sci & Technol, Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Lindquist, Erika; Pennacchio, Christa; Tuskan, Gerald A.] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA. RP Yang, XH (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. EM yangx@ornl.gov; tuskanga@ornl.gov RI Abraham, Paul/K-5599-2015; Gunter, Lee/L-3480-2016; Hettich, Robert/N-1458-2016; Tuskan, Gerald/A-6225-2011; Yang, Xiaohan/A-6975-2011; OI Gunter, Lee/0000-0003-1211-7532; Hettich, Robert/0000-0001-7708-786X; Tuskan, Gerald/0000-0003-0106-1289; Yang, Xiaohan/0000-0001-5207-4210; Hurst, Gregory/0000-0002-7650-8009; KALLURI, UDAYA/0000-0002-5963-8370; Tschaplinski, Timothy/0000-0002-9540-6622 FU U.S. Department of Energy Joint Genome Institute; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; U.S. DOE Office of Biological and Environmental Research; U.S. DOE BioEnergy Science Center; Office of Biological and Environmental Research in the DOE Office of Science; U.S. Department of Energy [DE-AC05-00OR22725] FX We thank S. D. Wullschleger and D.J. Weston for thoughtful and insightful comments on the manuscript. Transcriptome sequencing was supported by the U.S. Department of Energy Joint Genome Institute Laboratory Science Program project with X.Y. and T.J.T. The work conducted by the U. S. Department of Energy Joint Genome Institute is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Proteomics and bioinformatics analysis was supported by the U.S. DOE Office of Biological and Environmental Research, Genomic Science Program and the U.S. DOE BioEnergy Science Center. The BioEnergy Science Center is a U. S. 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 for the U.S. Department of Energy under Contract Number DE-AC05-00OR22725. NR 41 TC 43 Z9 45 U1 5 U2 26 PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT PI COLD SPRING HARBOR PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA SN 1088-9051 J9 GENOME RES JI Genome Res. PD APR PY 2011 VL 21 IS 4 BP 634 EP 641 DI 10.1101/gr.109280.110 PG 8 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Genetics & Heredity SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Genetics & Heredity GA 744BN UT WOS:000289067800014 PM 21367939 ER PT J AU Coblentz, D Chase, CG Karlstrom, KE van Wijk, J AF Coblentz, D. Chase, C. G. Karlstrom, K. E. van Wijk, J. TI Topography, the geoid, and compensation mechanisms for the southern Rocky Mountains SO GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS LA English DT Article DE topography; geoid; Rocky Mountains ID WESTERN UNITED-STATES; GRAVITATIONAL POTENTIAL-ENERGY; EFFECTIVE ELASTIC THICKNESS; COLORADO PLATEAU; ISOSTATIC COMPENSATION; CONTINENTAL LITHOSPHERE; GRAVITY-ANOMALIES; MANTLE CONVECTION; SWELLS; DEFORMATION AB The southern Rockies of Colorado are anomalously high (elevations greater than 2800 m), topographically rough (implying active uplift), and underlain by significant low-velocity anomalies in the upper mantle that suggest an intimate relationship between mantle geodynamic processes and the surface topography. The region is in isostatic equilibrium (i.e., near-zero free-air gravity anomaly); however, the poor correlation between the high topography and crustal thickness makes the application of simple compensation models (e.g., pure Heiskanen or Pratt-Hayford) problematic. Knowledge of how the current topography of the Rockies is isostatically compensated could provide constraints on the relative role of sublithospheric buoyancy versus lithospheric support. Here we evaluate the geoid and its relationship to the topography (using the geoid-to-elevation ratio (GTR) in the spatial domain and the admittance in the frequency domain) to constrain the mechanism of compensation. We separate the upper mantle geoid anomalies from those with deeper sources through the use of spherical harmonic filtering of the EGM2008 geoid. We exploit the fact that at wavelengths greater than the flexural wavelength where features are isostatically compensated, the geoid/topography ratio can be used to estimate the depth of compensation and the elastic thickness of the lithosphere. The results presented below indicate that the main tectonic provinces of the western United States have moderate geoid/topography ratios between 3.5 and 5.5 m/km (similar to 3.9 for the southern Rockies, similar to 4.25 for the Colorado Plateau, and similar to 5.2 for the Northern Basin and Range) suggesting shallow levels of isostatic compensation. In terms of the elastic thickness of the lithosphere, our results indicate an elastic thickness of less than 20 km. These value support the notion that a major portion of the buoyancy that has driven uplift resides at depths less than 100 km and that upper mantle processes such as small-scale convection may play a significant role in the buoyant uplift of the southern Rockies (as well as other actively uplifting areas of the western United States). Further support for this hypothesis is provided by high coherence for the geoid-topography relationship for nearly all wavelengths between 50 and 1000 km. C1 [Coblentz, D.] Los Alamos Natl Lab, Geodynam Grp, Los Alamos, NM 87545 USA. [Chase, C. G.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA. [Karlstrom, K. E.] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. [van Wijk, J.] Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA. RP Coblentz, D (reprint author), Los Alamos Natl Lab, Geodynam Grp, MS D443, Los Alamos, NM 87545 USA. EM coblentz@lanl.gov NR 62 TC 12 Z9 12 U1 0 U2 10 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 1525-2027 J9 GEOCHEM GEOPHY GEOSY JI Geochem. Geophys. Geosyst. PD APR 1 PY 2011 VL 12 AR Q04002 DI 10.1029/2010GC003459 PG 18 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 744GZ UT WOS:000289084200003 ER PT J AU Boro, BJ Lansing, R Goldberg, KI Kemp, RA AF Boro, Brian J. Lansing, Raymond Goldberg, Karen I. Kemp, Richard A. TI Reaction of a monomeric titanium hydride with dioxygen does not produce a stable titanium hydroperoxide SO INORGANIC CHEMISTRY COMMUNICATIONS LA English DT Article DE Bridging ligand; Ti complex; Crystal structure; Metal hydride ID OXYGEN BOND HOMOLYSIS; MOLECULAR-OXYGEN; OLEFIN EPOXIDATION; INSERTION; COMPLEXES; MECHANISM AB The reaction of gaseous O(2) under mild conditions with the monomeric titanium hydride (DIPP-O)(3)TiH(PMe(3)) (DIPP = 2,6-diisopropylphenyl), initially prepared by With, results in loss of the titanium hydride moiety with the isolation of (DIPP-O)(3)Ti-O-Ti(O-DIPP)(3), a dinuclear species containing a mu(2)-bridging oxo atom. This species has been characterized spectroscopically as well as by single crystal X-ray diffraction. The structure is a surprisingly rare example of a homoleptic aryloxide derivative of the Ti-O-Ti framework. Speculation upon the route used to form (DIPP-O)(3)Ti-O-Ti(O-DIPP)(3) is also presented. (C) 2011 Elsevier B.V. All rights reserved. C1 [Boro, Brian J.; Lansing, Raymond; Kemp, Richard A.] Univ New Mexico, Dept Chem & Biol Chem, Albuquerque, NM 87131 USA. [Goldberg, Karen I.] Univ Washington, Dept Chem & Biochem, Seattle, WA 98195 USA. [Kemp, Richard A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA. RP Kemp, RA (reprint author), Univ New Mexico, Dept Chem & Biol Chem, Albuquerque, NM 87131 USA. EM rakemp@unm.edu FU Department of Energy [DE-FG02-06ER15765]; National Science Foundation CRIF [CHE-0443580]; United States Department of Energy [DE-AC04-94AL85000] FX This work was supported by the Department of Energy (DE-FG02-06ER15765). The Bruker X-ray diffractometer was purchased via a National Science Foundation CRIF:MU award to the University of New Mexico (CHE-0443580). Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract No. DE-AC04-94AL85000. We also thank Dr. Diane A. Dickie of our UNM research group for useful discussions regarding the crystal structure. NR 16 TC 9 Z9 9 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1387-7003 J9 INORG CHEM COMMUN JI Inorg. Chem. Commun. PD APR PY 2011 VL 14 IS 4 BP 531 EP 533 DI 10.1016/j.inoche.2011.01.014 PG 3 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 744WS UT WOS:000289126500005 ER PT J AU Andarawewa, KL Costes, SV Fernandez-Garcia, I Chou, WS Ravani, SA Park, H Barcellos-Hoff, MH AF Andarawewa, Kumari L. Costes, Sylvain V. Fernandez-Garcia, Ignacio Chou, William S. Ravani, Shraddha A. Park, Howard Barcellos-Hoff, Mary Helen TI LACK OF RADIATION DOSE OR QUALITY DEPENDENCE OF EPITHELIAL-TO-MESENCHYMAL TRANSITION (EMT) MEDIATED BY TRANSFORMING GROWTH FACTOR beta SO INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS LA English DT Article DE TGF-beta; Ionizing radiation; Mammary epithelial cell; EMT AB Purpose: Epithelial-to-mesenchymal transition (EMT) is a phenotype that alters cell morphology, disrupts morphogenesis, and increases motility. Our prior studies have shown that the progeny of human mammary epithelial cells (HMECs) irradiated with 2 Gy undergoes transforming growth factor beta (TGF-beta) mediated EMT. In this study we determined whether radiation dose or quality affected TGF-beta-mediated EMT. Methods and Materials: HMECs were cultured on tissue culture plastic or in Matrigel (HI) Biosciences, San Jose, CA) and exposed to low or high linear energy transfer (LET) and TGF-beta (400 pg/mL). Image analysis was used to measure membrane-associated E-cadherin, a marker of functional epithelia, or fibronectin, a product of mesenchymal cells, as a function of radiation dose and quality. Results: E-cadherin was reduced in TGF-beta treated cells irradiated with low-LET radiation doses between 0.03 and 2 Gy compared with untreated, unirradiated cells or TGF-beta treatment alone. The radiation quality dependence of TGF-beta-mediated EMT was determined by use of 1 GeV/amu (gigaelectron volt / atomic mass unit) (56)Fe ion particles at the National Aeronautics and Space Administration's Space Radiation Laboratory. On the basis of the relative biological effectiveness of 2 for (56)Fe ion particles' clonogenic survival, TGF-beta-treated HMECs were irradiated with equitoxic 1-Gy (56)Fe ion or 2-Gy (137)Cs radiation in monolayer. Furthermore, TGF-beta treated HMECs irradiated with either high- or low-LET radiation exhibited similar loss of E-cadherin and gain of fibronectin and resulted in similar large, poorly organized colonies when embedded in Matrigel. Moreover, the progeny of HMECs exposed to different fluences of (56)Fe ion underwent TGF-beta-mediated EMT even when only one-third of the cells were directly traversed by the particle. Conclusions: Thus TGF-beta mediated EMT, like other non-targeted radiation effects, is neither radiation dose nor quality dependent at the doses examined. (c) 2011 Elsevier Inc. C1 [Fernandez-Garcia, Ignacio; Chou, William S.; Barcellos-Hoff, Mary Helen] NYU, Dept Radiat Oncol, Langone Sch Med, New York, NY 10016 USA. [Andarawewa, Kumari L.; Costes, Sylvain V.; Chou, William S.; Ravani, Shraddha A.; Park, Howard; Barcellos-Hoff, Mary Helen] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Barcellos-Hoff, MH (reprint author), NYU, Dept Radiat Oncol, Langone Sch Med, 566 1st Ave, New York, NY 10016 USA. EM mhbarcellos-hoff@nyumc.org RI Costes, Sylvain/D-2522-2013 OI Costes, Sylvain/0000-0002-8542-2389 FU National Aeronautics and Space Administration Specialized Center for Research in Radiation Health Effects at Lawrence Berkeley National Laboratory FX Support was provided by National Aeronautics and Space Administration Specialized Center for Research in Radiation Health Effects at Lawrence Berkeley National Laboratory. NR 0 TC 18 Z9 19 U1 2 U2 5 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0360-3016 J9 INT J RADIAT ONCOL JI Int. J. Radiat. Oncol. Biol. Phys. PD APR 1 PY 2011 VL 79 IS 5 BP 1523 EP 1529 DI 10.1016/j.ijrobp.2010.11.058 PG 7 WC Oncology; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Radiology, Nuclear Medicine & Medical Imaging GA 742YB UT WOS:000288980100034 PM 21310544 ER PT J AU Oldenburg, EW Guy, CS Cureton, ES Webb, MAH Gardner, WM AF Oldenburg, E. W. Guy, C. S. Cureton, E. S. Webb, M. A. H. Gardner, W. M. TI Effects of acclimation on poststocking dispersal and physiological condition of age-1 pallid sturgeon SO JOURNAL OF APPLIED ICHTHYOLOGY LA English DT Article; Proceedings Paper CT 6th International Symposium on Sturgeons CY OCT 25-30, 2009 CL Wuhan, PEOPLES R CHINA ID SHOVELNOSE STURGEON; HABITAT USE; JUVENILE; PLASMA; PERFORMANCE; MOVEMENTS; EXERCISE; CORTISOL; STRESS; FISHES AB The objective of this study was to evaluate the effects of acclimation to flow and site-specific physicochemical water conditions on poststocking dispersal and physiological condition of age-1 hatchery-reared pallid sturgeon. Fish from three acclimation treatments were radio-tagged, released at two locations (Missouri River and Marias River), and monitored using passive telemetry stations. Marias treatment was acclimated to flow and site-specific physicochemical conditions, Bozeman treatment was acclimated to flow only, and controls had no acclimation (reared under traditional conservation propagation protocol). During both years, fish released in the Missouri River dispersed less than fish released in the Marias River. In 2005, Marias treatment dispersed less and nearly twice as many fish remained in the Missouri River reach as compared to control fish. In 2006, pallid sturgeon dispersed similarly among treatments and the number of fish remaining in the Missouri River reach was similar among all treatments. Differences in poststocking dispersal between years were related to fin curl which was present in all fish in 2005 and only 26% in 2006. Pallid sturgeon from all treatments in both years had a greater affinity for the lower reaches of the Missouri River than the upper reaches. Thus, release site influenced poststocking dispersal more than acclimation treatment. No difference was observed in relative growth rate among treatments. However, acclimation to flow (i.e., exercise conditioning) prevented fat accumulation from rupturing hepatocytes. Acclimation conditions used in this study did not benefit pallid sturgeon unless physiological maladies were present. Overriding all treatment effects was stocking location; thus, natural resource agencies need to consider stocking location carefully to reduce poststocking dispersal. C1 [Guy, C. S.] Montana State Univ, Dept Ecol, Fish & Wildlife Management Program, Montana Cooperat Fishery Res Unit,US Geol Survey, Bozeman, MT 59717 USA. [Cureton, E. S.; Webb, M. A. H.] US Fish & Wildlife Serv, Bozeman Fish Technol Ctr, Bozeman, MT USA. [Gardner, W. M.] Montana Dept Fish Wildlife & Pk, Lewistown, MT USA. RP Oldenburg, EW (reprint author), Pacific NW Natl Lab, Ecol Grp, Mail Stop K6-85,POB 999, Richland, WA 99354 USA. EM eric.oldenburg@pnl.gov RI Wei, Qiwei/B-6928-2014 OI Wei, Qiwei/0000-0002-6366-1020 FU MTFWP; PPL Montana; Western Area Power Administration; Montana Fish; Wildlife and Parks; Montana State University; U.S. Geological Survey FX The MTFWP, PPL Montana, and Western Area Power Administration provided funding for this study. We thank Ross Epley, Amber Goodman, Brian Bellgraph, Jim Boyd, Windy Davis, Jen Dodge, Paul Gerrity, Casey Jensen, Ben Goodman, Eli McCord, Mike Meeuwig, Bob Oldenburg, Glenda Oldenburg, Lek Oldenburg, Randy Rodencal, Mike Wente, Ryan White, and Dr. Alexander Zale for assistance with this project; the entire staff of the BFTC for facility and logistical contributions; Linda Beck for liver fat score confirmation; and the Cornell family for their hospitality while in the field. The Montana Cooperative Fishery Research Unit is jointly sponsored by Montana Fish, Wildlife and Parks, Montana State University, and the U.S. Geological Survey. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. NR 36 TC 4 Z9 4 U1 0 U2 10 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0175-8659 EI 1439-0426 J9 J APPL ICHTHYOL JI J. Appl. Ichthyol. PD APR PY 2011 VL 27 IS 2 BP 436 EP 443 DI 10.1111/j.1439-0426.2010.01651.x PG 8 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA 741LG UT WOS:000288864600044 ER PT J AU Liu, YS Baker, JO Zeng, YN Himmel, ME Haas, T Ding, SY AF Liu, Yu-San Baker, John O. Zeng, Yining Himmel, Michael E. Haas, Thomas Ding, Shi-You TI Cellobiohydrolase Hydrolyzes Crystalline Cellulose on Hydrophobic Faces SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID ATOMIC-FORCE MICROSCOPY; ENZYMATIC-HYDROLYSIS; TRICHODERMA-REESEI; BACTERIAL CELLULOSE; BINDING MODULES; CELL-WALL; PHASE; VISUALIZATION; MICROFIBRILS; CELLULASES AB Biodegradation of plant biomass is a slow process in nature, and hydrolysis of cellulose is also widely considered to be a rate-limiting step in the proposed industrial process of converting lignocellulosic materials to biofuels. It is generally known that a team of enzymes including endo-and exocellulases as well as cellobiases are required to act synergistically to hydrolyze cellulose to glucose. The detailed molecular mechanisms of these enzymes have yet to be convincingly elucidated. In this report, atomic force microscopy (AFM) is used to image in real-time the structural changes in Valonia cellulose crystals acted upon by the exocellulase cellobiohydrolase I (CBH I) from Trichoderma reesei. Under AFM, single enzyme molecules could be observed binding only to one face of the cellulose crystal, apparently the hydrophobic face. The surface roughness of cellulose began increasing after adding CBH I, and the overall size of cellulose crystals decreased during an 11-h period. Interestingly, this size reduction apparently occurred only in the width of the crystal, whereas the height remained relatively constant. In addition, the measured cross-section shape of cellulose crystal changed from asymmetric to nearly symmetric. These observed changes brought about by CBH I action may constitute the first direct visualization supporting the idea that the exocellulase selectively hydrolyzes the hydrophobic faces of cellulose. The limited accessibility of the hydrophobic faces in native cellulose may contribute significantly to the rate-limiting slowness of cellulose hydrolysis. C1 [Liu, Yu-San; Baker, John O.; Zeng, Yining; Himmel, Michael E.; Haas, Thomas; Ding, Shi-You] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Liu, Yu-San; Zeng, Yining; Himmel, Michael E.; Haas, Thomas; Ding, Shi-You] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. RP Ding, SY (reprint author), Natl Renewable Energy Lab, Biosci Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. EM Shi.you.Ding@nrel.gov RI Ding, Shi-You/O-1209-2013 FU United States Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy; United States DOE Office of Science, Office of Biological and Environmental Research through the BioEnergy Science Center; DOE Bioenergy Research Center FX This work was supported by the United States Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, the Office of the Biomass Program for the work to develop enzymes, and the United States DOE Office of Science, Office of Biological and Environmental Research through the BioEnergy Science Center, a DOE Bioenergy Research Center, for the work on AFM visualization and analysis. NR 32 TC 62 Z9 64 U1 5 U2 59 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD APR 1 PY 2011 VL 286 IS 13 BP 11195 EP 11201 DI 10.1074/jbc.M110.216556 PG 7 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 740LW UT WOS:000288797100030 PM 21282110 ER PT J AU Zhang, XL Ting, K Bessette, CM Culiat, CT Sung, SJ Lee, H Chen, F Shen, J Wang, JJ Kuroda, S Soo, C AF Zhang, Xinli Ting, Kang Bessette, Catherine M. Culiat, Cymbeline T. Sung, Sang Jin Lee, Haofu Chen, Feng Shen, Jia Wang, James J. Kuroda, Shun'ichi Soo, Chia TI Nell-1, a Key Functional Mediator of Runx2, Partially Rescues Calvarial Defects in Runx2(+/-) Mice SO JOURNAL OF BONE AND MINERAL RESEARCH LA English DT Article DE NELL-1; RUNX2; TRANSGENIC ANIMAL; CRANIOFACIAL DEVELOPMENT; CLEIDOCRANIAL DYSPLASIA ID CRANIOSYNOSTOSIS-ASSOCIATED GENE; BONE MORPHOGENETIC PROTEIN-2; OSTEOBLAST DIFFERENTIATION; TRANSCRIPTION FACTOR; CLEIDOCRANIAL DYSPLASIA; CBFA1-DEFICIENT MICE; CBFA1; EXPRESSION; CELLS; BIOLOGY AB Mesenchymal stem cell commitment to an osteoprogenitor lineage requires the activity of Runx2, a molecule implicated in the etiopathology of multiple congenital craniofacial anomalies. Through promoter analyses, we have recently identified a new direct transcriptional target of Runx2, Nell-1, a craniosynostosis (CS)-associated molecule with potent osteogenic properties. This study investigated the mechanistic and functional relationship between Nell-1 and Runx2 in regulating osteoblast differentiation. The results showed that spatiotemporal distribution and expression levels of Nell-1 correlated closely with those of endogenous Runx2 during craniofacial development. Phenotypically, cross-mating Nell-1 overexpression transgenic (CMV-Nell-1) mice with Runx2 haploinsufficient (Runx2(+/-)) mice partially rescued the calvarial defects in the cleidocranial dysplasia (CCD)-like phenotype of Runx2(+/-) mice, whereas Nell-1 protein induced mineralization and bone formation in Runx2(+/-) but not 2(-/-) calvarial explants. Runx2-mediated osteoblastic gene expression and/or mineralization was severely reduced by Nell-1 siRNA oligos transfection into Runx2(+/+) newborn mouse calvarial cells (NMCCs) or in N-ethyl-N-nitrosourea (ENU)-induced Nell-1(-/-) NMCCs. Meanwhile, Nell-1 overexpression partially rescued osteoblastic gene expression but not mineralization in Runx2 null (Runx2(-/-)) NMCCs. Mechanistically, irrespective of Runx2 genotype, Nell-1 signaling activates ERK1/2 and JNK1 mitogen-activated protein kinase (MAPK) pathways in NMCCs and enhances Runx2 phosphorylation and activity when Runx2 is present. Collectively, these data demonstrate that Nell-1 is a critical downstream Runx2 functional mediator insofar as Runx2-regulated Nell-1 promotes osteoblastic differentiation through, in part, activation of MAPK and enhanced phosphorylation of Runx2, and Runx2 activity is significantly reduced when Nell-1 is blocked or absent. (C) 2011 American Society for Bone and Mineral Research. C1 [Zhang, Xinli; Ting, Kang; Chen, Feng; Shen, Jia] Univ Calif Los Angeles, Dent & Craniofacial Res Inst, Los Angeles, CA 90095 USA. [Zhang, Xinli; Ting, Kang; Lee, Haofu; Wang, James J.] Univ Calif Los Angeles, Sch Dent, Sect Orthodont, Los Angeles, CA 90095 USA. [Ting, Kang; Soo, Chia] Univ Calif Los Angeles, Sch Med, Los Angeles, CA 90095 USA. [Bessette, Catherine M.] Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA 90095 USA. [Culiat, Cymbeline T.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Sung, Sang Jin] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Orthodont, Seoul, South Korea. [Kuroda, Shun'ichi] Nagoya Univ, Grad Sch Bioagr Sci, Dept Ind Biosci, Nagoya, Aichi 4648601, Japan. RP Ting, K (reprint author), Univ Calif Los Angeles, Dent & Craniofacial Res Inst, 10833 Le Conte Ave,CHS 30-117, Los Angeles, CA 90095 USA. EM kting@dentistry.ucla.edu FU NIH/NIDCR [R21 DE0177711, RO1 DE01607]; UC Discovery Grant [07-10677]; Thomas R Bales Endowed Chair FX We would like to thank Drs Wenfang Wang and Bjorn R Olsen at Harvard University for providing the Runx2 knockout mouse and pcDNA-Runx2 expression plasmid and Dr Renny T Franceschi at the University of Michigan for providing the AdRunx2 adenovirus and 6OSE2 plasmid. This work was supported by the NIH/NIDCR (Grants R21 DE0177711 and RO1 DE01607), UC Discovery Grant 07-10677, and the Thomas R Bales Endowed Chair. NR 44 TC 32 Z9 36 U1 5 U2 8 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0884-0431 J9 J BONE MINER RES JI J. Bone Miner. Res. PD APR PY 2011 VL 26 IS 4 BP 777 EP 791 DI 10.1002/jbmr.267 PG 15 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 741KA UT WOS:000288861400012 PM 20939017 ER PT J AU Ma, R Zheng, CM Tonkin, M Zachara, JM AF Ma, Rui Zheng, Chunmiao Tonkin, Matt Zachara, John M. TI Importance of considering intraborehole flow in solute transport modeling under highly dynamic flow conditions SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE Hanford IFRC site; Intraborehole flow; Dynamic flow; Solute transport modeling; Aquifer heterogeneity ID WELLS; BIAS AB Correct interpretation of tracer test data is critical for understanding transport processes in the subsurface. This task can be greatly complicated by the presence of intraborehole flows in a highly dynamic flow environment. At a new tracer test site (Hanford IFRC) a dynamic flow field created by changes in the stage of the adjacent Columbia River, coupled with a heterogeneous hydraulic conductivity distribution, leads to considerable variations in vertical hydraulic gradients. These variations, in turn, create intraborehole flows in fully-screened (6.5 m) observation wells with frequently alternating upward and downward movement. This phenomenon, in conjunction with a highly permeable aquifer formation and small horizontal hydraulic gradients, makes modeling analysis and model calibration a formidable challenge. Groundwater head data alone were insufficient to define the flow model boundary conditions, and the movement of the tracer was highly sensitive to the dynamics of the flow field. This study shows that model calibration can be significantly improved by explicitly considering (a) dynamic flow model boundary conditions and (b) intraborehole flow. The findings from this study underscore the difficulties in interpreting tracer tests and understanding solute transport under highly dynamic flow conditions. (C) 2010 Elsevier B.V. All rights reserved. C1 [Ma, Rui; Zheng, Chunmiao] Univ Alabama, Dept Geol Sci, Tuscaloosa, AL 35487 USA. [Ma, Rui] China Univ Geosci, MOE Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China. [Tonkin, Matt] SS Papadopulos & Associates Inc, Bethesda, MD USA. [Zachara, John M.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Zheng, CM (reprint author), Univ Alabama, Dept Geol Sci, Tuscaloosa, AL 35487 USA. EM czheng@ua.edu RI Zheng, Chunmiao/I-5257-2014 OI Zheng, Chunmiao/0000-0001-5839-1305 FU U.S. Department of Energy (DOE) FX This research was supported by the Integrated Field-Scale Subsurface Research Challenge (IFRC) Project of the U.S. Department of Energy (DOE). We are grateful to Keith Halford and two anonymous reviewers whose constructive comments have led to significant improvement of this paper. NR 31 TC 14 Z9 15 U1 1 U2 29 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-7722 J9 J CONTAM HYDROL JI J. Contam. Hydrol. PD APR 1 PY 2011 VL 123 IS 1-2 BP 11 EP 19 DI 10.1016/j.jconhyd.2010.12.001 PG 9 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 745AL UT WOS:000289136200002 PM 21216023 ER PT J AU Ishii, N AF Ishii, Noriyuki TI Investigation on Stability of Transporter Protein, Glucuronide Transporter from Escherichia coli (vol 235, pg 63, 2010) SO JOURNAL OF MEMBRANE BIOLOGY LA English DT Correction C1 [Ishii, Noriyuki] Natl Inst Adv Ind Sci & Technol, Biol Informat Res Ctr, Tsukuba, Ibaraki 3058566, Japan. [Ishii, Noriyuki] NYU, Sch Med, Dept Cell Biol, Skirball Inst Biomol Med, New York, NY 10016 USA. [Ishii, Noriyuki] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Donner Lab,Mol & Cell Biol Dept, Berkeley, CA 94720 USA. [Ishii, Noriyuki] Natl Inst Adv Ind Sci & Technol, Biomed Res Inst, Tsukuba, Ibaraki 3058566, Japan. RP Ishii, N (reprint author), Natl Inst Adv Ind Sci & Technol, Biomed Res Inst, Tsukuba Cent 6,1-1-1 Higashi, Tsukuba, Ibaraki 3058566, Japan. EM ishii@ni.aist.go.jp NR 1 TC 1 Z9 1 U1 1 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2631 J9 J MEMBRANE BIOL JI J. Membr. Biol. PD APR PY 2011 VL 240 IS 3 BP 171 EP 171 DI 10.1007/s00232-011-9355-9 PG 1 WC Biochemistry & Molecular Biology; Cell Biology; Physiology SC Biochemistry & Molecular Biology; Cell Biology; Physiology GA 744OJ UT WOS:000289103600007 ER PT J AU Zhang, J Liu, W AF Zhang, Jian Liu, Wei TI Thin porous metal sheet-supported NaA zeolite membrane for water/ethanol separation SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Zeolite membrane; NaA zeolite; Porous metal support; Dehydration; Water/ethanol separation ID DEHYDRATION PERFORMANCE; ETHANOL-PRODUCTION; PERVAPORATION; MIXTURES; PERMEATION; ADSORPTION; DIFFUSION; MODULE AB This paper reports the preparation and separation testing of a NaA (or 4A-type) water-selective zeolite membrane, which is supported on a robust, porous metal sheet 50 mu m thick. This thin sheet support has great potential for the development of a low-cost, inorganic membrane module of high membrane surface area packing density (m(2)/m(3)). The porous Ni alloy sheet of micrometer or sub-micrometer mean pore size was prepared in-house to evaluate different zeolite membrane deposition methods and conditions. The membranes were characterized by SEM. XRD and water/ethanol separation tests. High quality NaA zeolite membranes of thickness < 2 mu m were obtained by the secondary hydrothermal growth method. These membranes show a water/ethanol separation factor of > 10,000 and water permeation flux of about 4 kg/(m(2) h) at 75 degrees C with a feed of 10% (w/w) water in ethanol. Stability of the membranes has also been demonstrated in 66-h continuous testing at 75 degrees C and 90 degrees C. The separation performance is discussed with different model equations. (C) 2011 Elsevier B.V. All rights reserved. C1 [Zhang, Jian; Liu, Wei] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. RP Liu, W (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. EM wei.liu@pnl.gov FU US Department of Energy, Office of Industrial Technology [DE-FC36-04GO98014]; ADMA; Pacific Ethanol Inc. FX This work has been supported by US Department of Energy, Office of Industrial Technology Program under contract number DE-FC36-04GO98014, and by our industrial partnership with ADMA Products and Pacific Ethanol Inc. We would like to thank our colleagues at PNNL, Mr. Nathan Canfield, Laxmikant Saraf, Jarrod Crum, for their help to some experimental and characterization work. We would also like to thank the Environmental Molecular Science Laboratory (EMSL) of Pacific Northwest National Laboratory for providing clean room work space and analytical facilities. EMSL is DOE's user facility. NR 23 TC 16 Z9 20 U1 2 U2 48 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD APR 1 PY 2011 VL 371 IS 1-2 BP 197 EP 210 DI 10.1016/j.memsci.2011.01.032 PG 14 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 744ZQ UT WOS:000289134100024 ER PT J AU O'Brien, CP Gellman, AJ Morreale, BD Miller, JB AF O'Brien, Casey P. Gellman, Andrew J. Morreale, Bryan D. Miller, James B. TI The hydrogen permeability of Pd4S SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Palladium membrane; Hydrogen permeation; Sulfur corrosion ID FILM COMPOSITE MEMBRANES; DISSOCIATIVE ADSORPTION; AB-INITIO; DIFFUSION; TRANSPORT; PALLADIUM; RESISTANCE; SURFACE; ALLOYS; MODEL AB Hydrogen permeates rapidly through pure Pd membranes, but H2S, a common minor component in hydrogen-containing streams, produces a Pd4S film on the Pd surface that severely retards hydrogen permeation. Hydrogen still permeates through the bi-layered Pd4S/Pd structure, indicating that the Pd4S surface is active for H-2 dissociation; the low hydrogen permeability of the Pd4S film is responsible for the decreased rate of hydrogen transport. In this work, the hydrogen permeability of Pd4S was determined experimentally in the 623-773 K temperature range. Bi-layered Pd4S/Pd foils were produced by exposing pure Pd foils to H2S. H-2 fluxes through the bi-layered Pd4S/Pd foils were measured during exposure to both pure H-2 and a 1000 ppm H2S in H-2 gas mixture. Our results show that H2S slows hydrogen permeation through Pd mainly by producing a Pd4S film on the Pd surface that is roughly an order-of-magnitude less permeable to hydrogen (k(Pd4S) = 10(-7.5) exp(-0.22 eV/k(B)T)molH(2)/m/s/Pa-1/2) than pure Pd. The presence of H2S in the gas stream results in greater inhibition of hydrogen transport than can be explained by the very low permeability of Pd4S. H2S may block H-2 dissociation sites at the Pd4S surface. (C) 2011 Elsevier B.V. All rights reserved. C1 [O'Brien, Casey P.; Gellman, Andrew J.; Miller, James B.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [O'Brien, Casey P.; Gellman, Andrew J.; Morreale, Bryan D.; Miller, James B.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RP Miller, JB (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. EM jbmiller@andrew.cmu.edu RI Gellman, Andrew/M-2487-2014 OI Gellman, Andrew/0000-0001-6618-7427 FU National Energy Technology Laboratory [DE-AC26-04NT41817] FX This technical effort was performed in support of the National Energy Technology Laboratory's on-going research in Computational and Basic Sciences under the RDS contract DE-AC26-04NT41817. NR 18 TC 16 Z9 16 U1 2 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD APR 1 PY 2011 VL 371 IS 1-2 BP 263 EP 267 DI 10.1016/j.memsci.2011.01.044 PG 5 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 744ZQ UT WOS:000289134100031 ER PT J AU Beste, A Buchanan, AC AF Beste, Ariana Buchanan, A. C., III TI Kinetic Analysis of the Phenyl-Shift Reaction in beta-O-4 Lignin Model Compounds: A Computational Study SO JOURNAL OF ORGANIC CHEMISTRY LA English DT Article ID O-NEOPHYL REARRANGEMENT; 1,1-DIARYLALKOXYL RADICALS; ALPHA/BETA-SELECTIVITIES; BRIDGED INTERMEDIATE; PYROLYTIC CLEAVAGE; ETHER; BIOMASS; SCISSION; FUELS; DECOMPOSITION AB The phenyl-shift reaction for the beta-radical of phenethyl phenyl ether (PhCH2CHOPh, beta-PPE) is an integral step in the pyrolysis of PPE, which is a model compound for the beta-O-4 linkage in lignin. We investigated the influence of natural occurring substituents (hydroxy, methoxy) on the reaction rate by calculating relative rate constants using density functional theory in combination with transition state theory, including anharmonic correction for low-frequency modes. The phenyl-shift reaction proceeds through an oxaspiro[2.5]octadienyl radical intermediate and the overall rate constants were computed invoking the steady-state approximation (its validity was confirmed). Substituents on the phenethyl ring have only little influence on the rate constants. If a methoxy substituent is located in the para position of the phenyl ring adjacent to the ether oxygen, the energies of the intermediate and second transition state are lowered, but the overall rate constant is not significantly altered. This is a consequence of the dominating first transition from reactant to intermediate in the overall rate constant. In contrast, o- and di-o-methoxy substituents significantly accelerate the phenyl-migration rate compared to beta-PPE. C1 [Beste, Ariana] Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA. [Buchanan, A. C., III] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Beste, A (reprint author), Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA. EM bestea@ornl.gov OI Beste, Ariana/0000-0001-9132-792X FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]; National Science Foundation FX We would like to thank Jarod M. Younker for his assistance. This research was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy and was performed in part using the resources of the Center for Computational Sciences at Oak Ridge National Laboratory under contract DE-AC05-00OR22725. It was also supported by an allocation of advanced computing resources provided by the National Science Foundation; computations were performed on Kraken at the National Institute for Computational Sciences (http://www.nics.tennessee.edu/). NR 35 TC 28 Z9 29 U1 0 U2 35 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0022-3263 J9 J ORG CHEM JI J. Org. Chem. PD APR 1 PY 2011 VL 76 IS 7 BP 2195 EP 2203 DI 10.1021/jo2000385 PG 9 WC Chemistry, Organic SC Chemistry GA 739DC UT WOS:000288692000024 PM 21381723 ER PT J AU Ito, J Batth, TS Petzold, CJ Redding-Johanson, AM Mukhopadhyay, A Verboom, R Meyer, EH Millar, AH Heazlewood, JL AF Ito, Jun Batth, Tanveer S. Petzold, Christopher J. Redding-Johanson, Alyssa M. Mukhopadhyay, Aindrila Verboom, Robert Meyer, Etienne H. Millar, A. Harvey Heazlewood, Joshua L. TI Analysis of the Arabidopsis Cytosolic Proteome Highlights Subcellular Partitioning of Central Plant Metabolism SO JOURNAL OF PROTEOME RESEARCH LA English DT Article DE Arabidopsis; cytosol; MudPIT; SUBA; plant proteomics; SRM ID PENTOSE-PHOSPHATE PATHWAY; PHOSPHORIBOSYL DIPHOSPHATE SYNTHASE; GENE-EXPRESSION; LOCALIZATION PREDICTOR; BIOTIN SYNTHESIS; CELL-CULTURE; DATA SETS; BIOSYNTHESIS; THALIANA; MITOCHONDRIAL AB The plant cell cytosol is a dynamic and complex intracellular matrix that, by definition, contains no compartmentalization. Nonetheless, it maintains a wide variety of biochemical networks and often links metabolic pathways across multiple organelles. There have been numerous detailed proteomic studies of organelles in the model plant Arabidopsis thaliana, although no such analysis has been undertaken on the cytosol. The cytosolic protein fraction from cell suspensions of Arabidopsis thaliana was isolated and analyzed using offline strong cation exchange liquid chromatography and LC-MS/MS. This generated a robust set of 1071 cytosolic proteins. Functional annotation of this set revealed major activities in protein synthesis and degradation, RNA metabolism and basic sugar metabolism. This included an array of important cytosol-related functions, specifically the ribosome, the set of tRNA catabolic enzymes, the ubiquitin-proteasome pathway, glycolysis and associated sugar metabolism pathways, phenylpropanoid biosynthesis, vitamin metabolism, nucleotide metabolism, an array of signaling and stressresponsive molecules, and NDP-sugar biosynthesis. This set of cytosolic proteins provides for the first time an extensive analysis of enzymes responsible for the myriad of reactions in the Arabidopsis cytosol and defines an experimental set of plant protein sequences that are not targeted to subcellular locations following translation and folding in the cytosol. C1 [Ito, Jun; Batth, Tanveer S.; Petzold, Christopher J.; Redding-Johanson, Alyssa M.; Mukhopadhyay, Aindrila; Heazlewood, Joshua L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Joint BioEnergy Inst, Berkeley, CA 94720 USA. [Ito, Jun; Batth, Tanveer S.; Petzold, Christopher J.; Redding-Johanson, Alyssa M.; Mukhopadhyay, Aindrila; Heazlewood, Joshua L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Verboom, Robert; Meyer, Etienne H.; Millar, A. Harvey] Univ Western Australia, Australian Res Council ARC Ctr Excellence Plant E, Crawley, WA 6009, Australia. [Verboom, Robert; Meyer, Etienne H.] Univ Western Australia, Ctr Comparat Anal Biomol Networks, Crawley, WA 6009, Australia. [Meyer, Etienne H.] CNRS, Inst Biol Mol Plantes, F-67084 Strasbourg, France. RP Heazlewood, JL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Joint BioEnergy Inst, 1 Cyclotron Rd,MS 978-4466, Berkeley, CA 94720 USA. EM jlheazlewood@lbl.gov RI Millar, A. Harvey/A-5452-2008; Heazlewood, Joshua/A-2554-2008; Meyer, Etienne/C-1952-2008 OI Millar, A. Harvey/0000-0001-9679-1473; Heazlewood, Joshua/0000-0002-2080-3826; Meyer, Etienne/0000-0003-4712-9824 FU U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Australian Research Council (ARC); ARC Centre of Excellence in Plant Energy Biology FX This work was part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U.S. Department of Energy. A.H.M. is supported by the Australian Research Council (ARC) as an Australian Professorial Fellow and by the ARC Centre of Excellence in Plant Energy Biology. We are grateful to Prof. Stephen Fry and the Edinburgh Cell Wall Group (University of Edinburgh) for providing the Arabidopsis cell culture. We also thank Anongpat Suttangkakul (Joint BioEnergy Institute) for her assistance with ubiquitin/26S proteasome nomenclature. NR 75 TC 52 Z9 60 U1 2 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1535-3893 J9 J PROTEOME RES JI J. Proteome Res. PD APR PY 2011 VL 10 IS 4 BP 1571 EP 1582 DI 10.1021/pr1009433 PG 12 WC Biochemical Research Methods SC Biochemistry & Molecular Biology GA 742EL UT WOS:000288924000013 PM 21166475 ER PT J AU Reese, CS Wilson, AG Guo, JQ Hamada, MS Johnson, VE AF Reese, C. Shane Wilson, Alyson G. Guo, Jiqiang Hamada, Michael S. Johnson, Valen E. TI A Bayesian Model for Integrating Multiple Sources of Lifetime Information in System-Reliability Assessments SO JOURNAL OF QUALITY TECHNOLOGY LA English DT Article DE Censored Data; Expert Opinion; Lifetime Data; Markov Chain Monte Carlo; Multicomponent System; Multilevel Data; Prior Information ID FAULT-TREE QUANTIFICATION; COMPONENT TEST DATA; COMPLEX-SYSTEMS; SERIES SYSTEMS; BINOMIAL SUBSYSTEMS; CONFIDENCE LIMITS; PARALLEL SYSTEMS; INFERENCE; INTERVALS AB We present a Bayesian model for assessing the reliability of multicomponent systems. Novel features of this model are the natural manner in which lifetime data collected at either the component, subsystem, or system level are integrated with prior information at any level. The model allows pooling of information between similar components, the incorporation of expert opinion, and straightforward handling of censored data. The methodology is illustrated with two examples. C1 [Reese, C. Shane] Brigham Young Univ, Dept Stat, Provo, UT 84602 USA. [Wilson, Alyson G.; Guo, Jiqiang] Iowa State Univ, Dept Stat, Ames, IA 50011 USA. [Hamada, Michael S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Johnson, Valen E.] Univ Texas MD Anderson Canc Ctr, Dept Biostat & Appl Math, Houston, TX 77030 USA. RP Reese, CS (reprint author), Brigham Young Univ, Dept Stat, Provo, UT 84602 USA. EM reese@stat.byu.edu; agw@iastate.edu; jqguo@iastate.edu; hamada@lanl.gov; vejohnson@mdanderson.org OI Wilson, Alyson/0000-0003-1461-6212 NR 56 TC 17 Z9 17 U1 1 U2 6 PU AMER SOC QUALITY CONTROL-ASQC PI MILWAUKEE PA 600 N PLANKINTON AVE, MILWAUKEE, WI 53203 USA SN 0022-4065 J9 J QUAL TECHNOL JI J. Qual. Technol. PD APR PY 2011 VL 43 IS 2 BP 127 EP 141 PG 15 WC Engineering, Industrial; Operations Research & Management Science; Statistics & Probability SC Engineering; Operations Research & Management Science; Mathematics GA 744WQ UT WOS:000289126300004 ER PT J AU Hadjar, O Johnson, G Laskin, J Kibelka, G Shill, S Kuhn, K Cameron, C Kassan, S AF Hadjar, Omar Johnson, Grant Laskin, Julia Kibelka, Gottfried Shill, Scott Kuhn, Ken Cameron, Chad Kassan, Scott TI IonCCD (TM) for Direct Position-Sensitive Charged-Particle Detection: from Electrons and keV Ions to Hyperthermal Biomolecular Ions SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY LA English DT Article DE IonCCD; Pixelated detector; Charged particle detection; Beam profiling; Non-scanning mass spectrometry; Double-focusing sector field; Hyper-thermal ions; Simultaneous mixture separation; Micro-array deposition ID INDUCTIVELY-COUPLED PLASMA; GEOMETRY MASS SPECTROGRAPH; ARRAY DETECTOR; PREPARATIVE SEPARATION; IMPACT IONIZATION; MAGNETIC-SECTOR; CROSS-SECTIONS; SPECTROMETRY; SOFT; SURFACES AB A novel, low-cost, pixel-based detector array (described elsewhere Sinha and Wadsworth (76(2), 1) is examined using different charged particles, from electrons to hyperthermal (< 100 eV) large biomolecular positive and negative ions, including keV small atomic and molecular ions. With this in mind, it is used in instrumentation design (beam profiling), mass spectrometry, and electron spectroscopy. The array detector is a modified light-sensitive charge-coupled device (CCD) that was engineered for direct charged-particle detection by replacing the semiconductor part of the CCD pixel with a conductor Sinha and Wadsworth (76(2), 1). The device is referred to as the IonCCD. For the first time, we show the direct detection of 250-eV electrons, providing linearity response of the IonCCD to the electron beam current. We demonstrate that the IonCCD detection efficiency is virtually independent from the particle energy (250 eV, 1250 eV), impact angle (45(o), 90(o)) and flux. By combining the IonCCD with a double-focusing sector field mass spectrometer (MS) of Mattauch-Herzog geometry (MH-MS), we demonstrate fast data acquisition. Detection of hyperthermal biomolecular ions produced using an electrospray ionization source (ESI) is also presented. In addition, the IonCCD was used as a beam profiler to characterize the beam shape and intensity of 15 eV protonated and deprotonated biomolecular ions at the exit of an rf-only collisional quadrupole. This demonstrates an ion-beam profiling application for instrument design. Finally, we present simultaneous detection of 140 eV doubly protonated biomolecular ions when the IonCCD is combined with the MH-MS. This demonstrates the possibility of simultaneous separation and micro-array deposition of biological material using a miniature MH-MS. C1 [Hadjar, Omar; Kibelka, Gottfried; Shill, Scott; Kuhn, Ken; Cameron, Chad; Kassan, Scott] OI Analyt, CMS Field Prod, Pelham, AL 35124 USA. [Johnson, Grant; Laskin, Julia] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. RP Hadjar, O (reprint author), OI Analyt, CMS Field Prod, 2148 Pelham Pkwy,Bldg 400, Pelham, AL 35124 USA. EM ohadjar@oico.com RI Laskin, Julia/H-9974-2012 OI Laskin, Julia/0000-0002-4533-9644 FU OI Analytical; Chemical Sciences Division, Office of Basic Energy Sciences of the U.S. Department of Energy; Pacific Northwest National Laboratory (PNNL); W. R. Wiley Environmental Molecular Sciences Laboratory (EMSL); U.S. DOE Office of Biological and Environmental Research located at PNNL FX The authors acknowledge support for this work by OI Analytical; the Chemical Sciences Division, Office of Basic Energy Sciences of the U.S. Department of Energy (J.L.); and the Laboratory Directed Research and Development Program (G.J.) at the Pacific Northwest National Laboratory (PNNL). O.H. acknowledges the support of OI Analytical for this research with a special thanks to Todd Brown. The work was performed at the CMS Field Products subsidiary of OI Analytical and at the W. R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the U.S. DOE Office of Biological and Environmental Research located at PNNL. NR 41 TC 20 Z9 20 U1 0 U2 6 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1044-0305 J9 J AM SOC MASS SPECTR JI J. Am. Soc. Mass Spectrom. PD APR PY 2011 VL 22 IS 4 BP 612 EP 623 DI 10.1007/s13361-010-0067-7 PG 12 WC Biochemical Research Methods; Chemistry, Analytical; Chemistry, Physical; Spectroscopy SC Biochemistry & Molecular Biology; Chemistry; Spectroscopy GA 739JQ UT WOS:000288713600002 PM 21472600 ER PT J AU Miller, MK Parish, CM AF Miller, M. K. Parish, C. M. TI Role of alloying elements in nanostructured ferritic steels SO MATERIALS SCIENCE AND TECHNOLOGY LA English DT Article DE Oxide dispersion strengthened steels; Nanostructured ferritic alloys; Atom probe tomography; Spectrum imaging; Grain boundaries; Solute segregation ID SPINODAL DECOMPOSITION; ATOMIC-LEVEL; STRENGTH AB The roles of the alloying elements in three nanostructured ferritic alloys (14YWT, MA957 and Eurofer 97) have been established through the characterisation of the microstructure by atom probe tomography and spectrum imaging in a transmission electron microscope. Cr, W, Mo, Ti and Y were found in the ferrite matrix and contributed to solid solution hardening. Ti, Y, C, O and N were found in high number densities of precipitates and nanoclusters both in the grain interior and on grain boundaries and thereby contributed to precipitation hardening. Cr, W and Mo were enriched at the intraparticle regions of the grain boundaries. The solute segregation and precipitation pinned the grain boundaries and contributed to the excellent creep properties of the alloys. C1 [Miller, M. K.; Parish, C. M.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Miller, MK (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM millermk@ornl.gov RI Parish, Chad/J-8381-2013 FU Office of Basic Energy Sciences, US Department of Energy; US Government [DE-AC05-00OR22725]; US Department of Energy FX The authors thank Ms K. F. Russell, Ms K. A. Power and Dr D. T. Hoelzer of Oak Ridge National Laboratory (ORNL) for their assistance, Dr R. Lindau of the Karlsruher Institute for Technology, Germany, for supplying the Eurofer 97 alloy and Dr J. Caola, Dr C. Henry and Dr L. Fu of FEI Company, Hillsboro, OR, USA, for the use of the Tecnai Osiris TEM/STEM instrument. The present research was sponsored by the Office of Basic Energy Sciences, US Department of Energy, and by ORNL's Shared Research Equipment (SHaRE) User Facility, which is sponsored by the Office of Basic Energy Sciences, US Department of Energy. This submission was sponsored by a contractor of the US Government under contract no. DE-AC05-00OR22725 with the US Department of Energy. The US Government retains, and the publisher, by accepting this submission for publication, acknowledges that the US Government retains, a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this submission, or allow others to do so, for US Government purposes. NR 22 TC 32 Z9 32 U1 2 U2 28 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0267-0836 EI 1743-2847 J9 MATER SCI TECH-LOND JI Mater. Sci. Technol. PD APR PY 2011 VL 27 IS 4 BP 729 EP 734 DI 10.1179/1743284710Y.0000000039 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 744FM UT WOS:000289080300004 ER PT J AU Narayan, RJ Boehm, RD Sumant, AV AF Narayan, Roger J. Boehm, Ryan D. Sumant, Anirudha V. TI Medical applications of diamond particles & surfaces SO MATERIALS TODAY LA English DT Review ID CHEMICAL-VAPOR-DEPOSITION; ON-A-CHIP; NANOCRYSTALLINE DIAMOND; ULTRANANOCRYSTALLINE DIAMOND; THIN-FILMS; FLUORESCENT NANODIAMONDS; IN-VIVO; DELIVERY; COATINGS; SILICON AB Diamond has been considered for use in several medical applications due to its unique mechanical, chemical, optical, and biological properties. In this paper, methods for preparing synthetic diamond surfaces and particles are described. In addition, recent developments involving the use of diamond in prostheses, sensing, imaging, and drug delivery applications are reviewed. These developments suggest that diamond-containing structures will provide significant improvements in the diagnosis and treatment of medical conditions over the coming years. C1 [Narayan, Roger J.; Boehm, Ryan D.] Univ N Carolina, Joint Dept Biomed Engn, Raleigh, NC USA. [Narayan, Roger J.; Boehm, Ryan D.] N Carolina State Univ, Raleigh, NC 27695 USA. [Sumant, Anirudha V.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Narayan, RJ (reprint author), Univ N Carolina, Joint Dept Biomed Engn, Raleigh, NC USA. EM roger_narayan@unc.edu RI Narayan, Roger/J-2789-2013 OI Narayan, Roger/0000-0002-4876-9869 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX One of the authors (AVS) would like to acknowledge use of the Center for Nanoscale Materials, which is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 78 TC 14 Z9 14 U1 2 U2 28 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1369-7021 J9 MATER TODAY JI Mater. Today PD APR PY 2011 VL 14 IS 4 BP 154 EP 163 PG 10 WC Materials Science, Multidisciplinary SC Materials Science GA 742AZ UT WOS:000288911800019 ER PT J AU Pan, CL Fischer, CR Hyatt, D Bowen, BP Hettich, RL Banfield, JF AF Pan, Chongle Fischer, Curt R. Hyatt, Doug Bowen, Benjamin P. Hettich, Robert L. Banfield, Jillian F. TI Quantitative Tracking of Isotope Flows in Proteomes of Microbial Communities SO MOLECULAR & CELLULAR PROTEOMICS LA English DT Article ID PROBING PROTEIN-SIP; ACID-MINE DRAINAGE; MASS-SPECTROMETRY; METABOLIC-ACTIVITY; YEAST PROTEOME; RECONSTRUCTION; IDENTIFICATION; DISTRIBUTIONS; BIOFILMS; BACTERIA AB Stable isotope probing (SIP) has been used to track nutrient flows in microbial communities, but existing protein-based SIP methods capable of quantifying the degree of label incorporation into peptides and proteins have been demonstrated only by targeting usually less than 100 proteins per sample. Our method automatically (i) identifies the sequence of and (ii) quantifies the degree of heavy atom enrichment for thousands of proteins from microbial community proteome samples. These features make our method suitable for comparing isotopic differences between closely related protein sequences, and for detecting labeling patterns in low-abundance proteins or proteins derived from rare community members. The proteomic SIP method was validated using proteome samples of known stable isotope incorporation levels at 0.4%, similar to 50%, and similar to 98%. The method was then used to monitor incorporation of (15)N into established and regrowing microbial biofilms. The results indicate organism-specific migration patterns from established communities into regrowing communities and provide insights into metabolism during biofilm formation. The proteomic SIP method can be extended to many systems to track fluxes of (13)C or (15)N in microbial communities. Molecular & Cellular Proteomics 10: 10.1074/mcp.M110.006049, 1-11, 2011. C1 [Pan, Chongle] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Pan, Chongle; Hettich, Robert L.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Pan, Chongle; Hyatt, Doug] Oak Ridge Natl Lab, BioSci Div, Oak Ridge, TN 37831 USA. [Fischer, Curt R.; Banfield, Jillian F.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Bowen, Benjamin P.] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Pan, CL (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. EM panc@ornl.gov; jbanfield@berkeley.edu RI Hettich, Robert/N-1458-2016 OI Hettich, Robert/0000-0001-7708-786X FU US Department of Energy, Office of Biological and Environmental Research [DE-SC0004665]; Systems Biology Knowledgebase [DE-SC0004918]; Office of Advanced Scientific Computing Research; Department of Energy [DOE-AC05-00OR22725] FX This work was funded by the US Department of Energy, Office of Biological and Environmental Research Carbon-Cycling Program (DE-SC0004665), Systems Biology Knowledgebase (DE-SC0004918) and Office of Advanced Scientific Computing Research SciDAC program. Oak Ridge National Laboratory is managed by University of Tennessee-Battelle LLC for the Department of Energy under contract DOE-AC05-00OR22725. NR 31 TC 23 Z9 23 U1 0 U2 17 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 1535-9476 J9 MOL CELL PROTEOMICS JI Mol. Cell. Proteomics PD APR PY 2011 VL 10 IS 4 AR 006049 DI 10.1074/mcp.M110.006049 PG 11 WC Biochemical Research Methods SC Biochemistry & Molecular Biology GA 744BL UT WOS:000289067300010 ER PT J AU Schulz, D Southekal, S Junnarkar, SS Pratte, JF Purschke, ML Stoll, SP Ravindranath, B Maramraju, SH Krishnamoorthy, S Henn, FA O'Connor, P Woody, CL Schlyer, DJ Vaska, P AF Schulz, Daniela Southekal, Sudeepti Junnarkar, Sachin S. Pratte, Jean-Francois Purschke, Martin L. Stoll, Sean P. Ravindranath, Bosky Maramraju, Sri Harsha Krishnamoorthy, Srilalan Henn, Fritz A. O'Connor, Paul Woody, Craig L. Schlyer, David J. Vaska, Paul TI Simultaneous assessment of rodent behavior and neurochemistry using a miniature positron emission tomograph SO NATURE METHODS LA English DT Article ID RAT-BRAIN; DOPAMINE RELEASE; PET; BINDING; RACLOPRIDE; ANIMALS; AWAKE; ANESTHETICS; LOCOMOTION; SCANNER AB Positron emission tomography (PET) neuroimaging and behavioral assays in rodents are widely used in neuroscience. PET gives insights into the molecular processes of neuronal communication, and behavioral methods analyze the actions that are associated with such processes. These methods have not been directly integrated, because PET studies in animals have until now required general anesthesia to immobilize the subject, which precludes behavioral studies. We present a method for imaging awake, behaving rats with PET that allows the simultaneous study of behavior. Key components include the 'rat conscious animal PET' or RatCAP, a miniature portable PET scanner that is mounted on the rat's head, a mobility system that allows considerable freedom of movement, radiotracer administration techniques and methods for quantifying behavior and correlating the two data sets. The simultaneity of the PET and behavioral data provides a multidimensional tool for studying the functions of different brain regions and their molecular constituents. C1 [Schulz, Daniela; Henn, Fritz A.; Schlyer, David J.; Vaska, Paul] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. [Southekal, Sudeepti; Ravindranath, Bosky; Maramraju, Sri Harsha; Krishnamoorthy, Srilalan; Schlyer, David J.; Vaska, Paul] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA. [Junnarkar, Sachin S.; Pratte, Jean-Francois; O'Connor, Paul] Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. [Purschke, Martin L.; Stoll, Sean P.; Woody, Craig L.] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA. RP Vaska, P (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. EM vaska@bnl.gov RI Schulz, Daniela/H-5625-2011; Southekal, Sudeepti/E-6100-2015 OI Southekal, Sudeepti/0000-0002-5540-5000 FU US Department of Energy [DE-AC02-98CH10886]; Department of Energy's Office of Biological and Environmental Research FX We thank W. Lenz for mechanical design and fabrication; D. Alexoff for assistance with rat handling; S. Park for coincidence-processing methods; W. Schiffer for assistance with data analysis; C. Reiszel for expertise in catheter design; V. Radeka, R. Lecomte and R. Fontaine for contributions to the electronics; J. Logan for advice on kinetic modeling; J. Fowler and the personnel of the Brookhaven National Laboratory PET center and cyclotron for making the radiotracers available for our studies and N. Volkow for proposing the idea of a conscious-animal PET scanner. The research was carried out at Brookhaven National Laboratory under contract number DE-AC02-98CH10886 with the US Department of Energy and funded by the Department of Energy's Office of Biological and Environmental Research. NR 34 TC 56 Z9 56 U1 4 U2 16 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1548-7091 J9 NAT METHODS JI Nat. Methods PD APR PY 2011 VL 8 IS 4 BP 347 EP U99 DI 10.1038/NMETH.1582 PG 8 WC Biochemical Research Methods SC Biochemistry & Molecular Biology GA 742KE UT WOS:000288940300023 PM 21399637 ER PT J AU Roy, S Parks, D Seu, KA Su, R Turner, JJ Chao, W Anderson, EH Cabrini, S Kevan, SD AF Roy, S. Parks, D. Seu, K. A. Su, R. Turner, J. J. Chao, W. Anderson, E. H. Cabrini, S. Kevan, S. D. TI Lensless X-ray imaging in reflection geometry SO NATURE PHOTONICS LA English DT Article ID DIFFRACTION MICROSCOPY; HOLOGRAPHY AB Lensless X-ray imaging techniques such as coherent diffraction imaging(1-8) and ptychography(9-11), and Fourier transform holography(12-17) can provide time-resolved, diffraction-limited images. Nearly all examples of these techniques have focused on transmission geometry, restricting the samples and reciprocal spaces that can be investigated. We report a lensless X-ray technique developed for imaging in Bragg and small-angle scattering geometries, which may also find application in transmission geometries. We demonstrate this by imaging a nanofabricated pseudorandom binary structure in small-angle reflection geometry. The technique can be used with extended objects, places no restriction on sample size, and requires no additional sample masking. The realization of X-ray lensless imaging in reflection geometry opens up the possibility of single-shot imaging of surfaces in thin films, buried interfaces in magnetic multilayers, organic photovoltaic and field-effect transistor devices, or Bragg planes in a single crystal. C1 [Roy, S.; Parks, D.; Seu, K. A.; Su, R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Parks, D.; Seu, K. A.; Su, R.; Kevan, S. D.] Univ Oregon, Dept Phys, Eugene, OR 97403 USA. [Turner, J. J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Chao, W.; Anderson, E. H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. [Cabrini, S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Roy, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. EM sroy@lbl.gov RI Kevan, Stephen/F-6415-2010 OI Kevan, Stephen/0000-0002-4621-9142 FU Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; National Science Foundation [DMR-0506241] FX The authors thank S. Marchesini of the Lawrence Berkeley National Laboratory (LBNL) for helpful discussions. This work at LBNL was supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy (contract no. DE-AC02-05CH11231). Work in the group of S.D.K. at U. Oregon was supported by the National Science Foundation (grant no. DMR-0506241). NR 24 TC 44 Z9 44 U1 6 U2 38 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1749-4885 J9 NAT PHOTONICS JI Nat. Photonics PD APR PY 2011 VL 5 IS 4 BP 243 EP 245 DI 10.1038/NPHOTON.2011.11 PG 3 WC Optics; Physics, Applied SC Optics; Physics GA 742ZS UT WOS:000288984900016 ER PT J AU Bilbro, LS Aguilar, RV Logvenov, G Pelleg, O Bozovic, I Armitage, NP AF Bilbro, L. S. Aguilar, R. Valdes Logvenov, G. Pelleg, O. Bozovic, I. Armitage, N. P. TI Temporal correlations of superconductivity above the transition temperature in La2-xSrxCuO4 probed by terahertz spectroscopy SO NATURE PHYSICS LA English DT Article ID HIGH-T-C; PHASE; BI2SR2CACU2O8+DELTA; FLUCTUATIONS; PSEUDOGAP; CUPRATE AB The nature of the underdoped pseudogap regime of the high-temperature copper oxide superconductors has been a matter of long-term debate(1-3). On quite general grounds, we expect that, owing to their low superfluid densities and short correlation lengths, superconducting fluctuations will be significant for transport and thermodynamic properties in this part of the phase diagram(4,5). Although there is ample experimental evidence for such correlations, there has been disagreement about how high in temperature they may persist, their role in the phenomenology of the pseudogap and their significance for understanding high-temperature superconductivity(6-10). Here we use THz time-domain spectroscopy to probe the temporal fluctuations of superconductivity above the critical temperature (T-c) in La2-xSrxCuO4 (LSCO) thin films over a doping range that spans almost the entire superconducting dome (x = 0.09-0.25). Signatures of the fluctuations persist in the conductivity in a comparatively narrow temperature range, at most 16 K above T-c. Our measurements show that superconducting correlations do not make an appreciable contribution to the charge-transport anomalies of the pseudogap in LSCO at temperatures well above T-c. C1 [Bilbro, L. S.; Aguilar, R. Valdes; Armitage, N. P.] Johns Hopkins Univ, Dept Phys & Astron, Inst Quantum Matter, Baltimore, MD 21218 USA. [Logvenov, G.; Pelleg, O.; Bozovic, I.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Armitage, NP (reprint author), Johns Hopkins Univ, Dept Phys & Astron, Inst Quantum Matter, Baltimore, MD 21218 USA. EM npa@pha.jhu.edu RI Valdes Aguilar, Rolando/A-6637-2012 OI Valdes Aguilar, Rolando/0000-0002-4321-4792 FU Institute for Quantum Matter, Department of Energy [DE-FG02-08ER46544]; US Department of Energy [MA-509-MACA] FX The authors would like to thank P. W. Anderson, A. Auerbach, A. Dorsey, N. Drichko, S. Kivelson, L. Li, W. Liu, V. Oganesyan, N. P. Ong, J. Orenstein, F. Ronning, O. Tchernyshyov, Z. Tesanovic, A. Tsvelik, D. van der Marel and J. Zaanen for discussions and/or correspondence. Support for the measurements at The Johns Hopkins University was provided under the auspices of the Institute for Quantum Matter, Department of Energy DE-FG02-08ER46544. The work at Brookhaven National Laboratory was supported by the US Department of Energy under project No MA-509-MACA. NR 30 TC 81 Z9 81 U1 2 U2 32 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD APR PY 2011 VL 7 IS 4 BP 298 EP 302 DI 10.1038/NPHYS1912 PG 5 WC Physics, Multidisciplinary SC Physics GA 744DZ UT WOS:000289076000013 ER PT J AU Wu, J Carlton, D Park, JS Meng, Y Arenholz, E Doran, A Young, AT Scholl, A Hwang, C Zhao, HW Bokor, J Qiu, ZQ AF Wu, J. Carlton, D. Park, J. S. Meng, Y. Arenholz, E. Doran, A. Young, A. T. Scholl, A. Hwang, C. Zhao, H. W. Bokor, J. Qiu, Z. Q. TI Direct observation of imprinted antiferromagnetic vortex states in CoO/Fe/Ag(001) discs SO NATURE PHYSICS LA English DT Article ID DYNAMICS; FIELD AB In magnetic thin films, a magnetic vortex is a state in which the magnetization vector curls around the centre of a confined structure(1). In a thin-film disc, vortex states are characterized by the vortex polarity and the winding number(2,3). In ferromagnetic (FM) discs, these two parameters have been shown to govern many fundamental properties of the vortex, such as its gyroscopic rotation(4), polarity reversal(5-7), core motion(8) and vortex-pair excitation(9). In antiferromagnetic (AFM) discs(10), in contrast, there has been only indirect evidence for a vortex state, obtained through the observation of induced FM-ordered spins in the AFMdisc(11-14). Here we report the direct observation of an AFM vortex state in the AFM layer of an AFM/FM bilayer system. We have fabricated single-crystalline NiO/Fe/Ag(001) and CoO/Fe/Ag(001) discs, and using X-ray magnetic linear dichroism techniques we observe two types of AFM vortex, one of which has no analogue in FM structures. We also show that a frozen AFM vortex can bias an FM vortex at low temperature. C1 [Wu, J.; Park, J. S.; Meng, Y.; Qiu, Z. Q.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Carlton, D.; Bokor, J.] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. [Meng, Y.; Zhao, H. W.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. [Arenholz, E.; Doran, A.; Young, A. T.; Scholl, A.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Hwang, C.] Korea Res Inst Stand & Sci, Taejon 305340, South Korea. RP Qiu, ZQ (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM qiu@socrates.berkeley.edu RI Meng, Yang/A-8308-2015; Scholl, Andreas/K-4876-2012; Qiu, Zi Qiang/O-4421-2016 OI Qiu, Zi Qiang/0000-0003-0680-0714 FU National Science Foundation [DMR-0803305]; US Department of Energy [DE-AC02-05CH11231]; Korea Foundation for International Cooperation of Science and Technology; Chinese Education Department; Western Institute of Nanoelectronics FX This work was supported by National Science Foundation Grant DMR-0803305, US Department of Energy Grant DE-AC02-05CH11231, the Korea Foundation for International Cooperation of Science and Technology through the Global Research Laboratory project, the Chinese Education Department and the Western Institute of Nanoelectronics. NR 23 TC 20 Z9 20 U1 4 U2 49 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD APR PY 2011 VL 7 IS 4 BP 303 EP 306 DI 10.1038/NPHYS1891 PG 4 WC Physics, Multidisciplinary SC Physics GA 744DZ UT WOS:000289076000014 ER PT J AU Kamal, A Clarke, J Devoret, MH AF Kamal, Archana Clarke, John Devoret, M. H. TI Noiseless non-reciprocity in a parametric active device SO NATURE PHYSICS LA English DT Article ID JOSEPHSON RING MODULATOR; QUANTUM LIMIT AB Non-reciprocal devices such as circulators and isolators belong to an important class of microwave components employed in applications including the measurement of mesoscopic circuits at cryogenic temperatures(1-5). The measurement protocols usually involve an amplification chain that relies on circulators to separate input and output channels and to suppress backaction from different stages on the sample under test. In these devices the usual reciprocal symmetry of circuits is broken by the phenomenon of Faraday rotation based on magnetic materials and fields(6). However, magnets are averse to on-chip integration, and magnetic fields are deleterious to delicate superconducting devices(7,8). Here we present a new proposal that combines two stages of parametric modulation to emulate the action of a circulator. It is devoid of magnetic components and suitable for on-chip integration. As the design is free of any dissipative elements and based on reversible operation, the device operates noiselessly, giving it an important advantage over other non-reciprocal active devices for quantum information processing applications. C1 [Kamal, Archana; Devoret, M. H.] Yale Univ, Dept Phys & Appl Phys, New Haven, CT 06520 USA. [Clarke, John] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Clarke, John] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Devoret, MH (reprint author), Yale Univ, Dept Phys & Appl Phys, 15 Prospect St, New Haven, CT 06520 USA. EM michel.devoret@yale.edu FU US National Security Agency through the US Army Research Office [W911NF-05-01-0365]; W. M. Keck Foundation; US National Science Foundation [DMR-0653377]; Office of the Director of National Intelligence (ODNI); Intelligence Advanced Research Projects Activity (IARPA), through the Army Research Office; College de France; French Agence Nationale de la Recherche FX We acknowledge useful discussions with S. M. Girvin, J. Koch, L. Spietz and R. J. Schoelkopf. This research was supported by the US National Security Agency through the US Army Research Office grant W911NF-05-01-0365, the W. M. Keck Foundation, the US National Science Foundation through grant DMR-0653377 (A. K. and M. H. D.) as well as by the Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA), through the Army Research Office. All statements of fact, opinion or conclusions contained herein are those of the authors and should not be construed as representing the official views or policies of IARPA, the ODNI or the US Government (J.C.). M. H. D. also acknowledges partial support from the College de France and the French Agence Nationale de la Recherche. NR 26 TC 47 Z9 48 U1 1 U2 26 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD APR PY 2011 VL 7 IS 4 BP 311 EP 315 DI 10.1038/NPHYS1893 PG 5 WC Physics, Multidisciplinary SC Physics GA 744DZ UT WOS:000289076000016 ER PT J AU Riggs, SC Vafek, O Kemper, JB Betts, JB Migliori, A Balakirev, FF Hardy, WN Liang, RX Bonn, DA Boebinger, GS AF Riggs, Scott C. Vafek, O. Kemper, J. B. Betts, J. B. Migliori, A. Balakirev, F. F. Hardy, W. N. Liang, Ruixing Bonn, D. A. Boebinger, G. S. TI Heat capacity through the magnetic-field-induced resistive transition in an underdoped high-temperature superconductor SO NATURE PHYSICS LA English DT Article ID T-C SUPERCONDUCTOR; QUASI-PARTICLE SPECTRUM; D-WAVE SUPERCONDUCTORS; FERMI-SURFACE; QUANTUM OSCILLATIONS; VORTEX STATE; MIXED-STATE; LA2-XSRXCUO4 AB The underlying physics of the magnetic-field induced resistive state in lightly doped high-temperature cuprate superconductors remains a mystery. One interpretation is that the application of magnetic field destroys the d-wave superconducting gap, uncovering a Fermi surface that behaves as a Fermi liquid. Another view is that an applied magnetic field destroys long-range superconducting phase coherence, but the superconducting gap amplitude survives. By measuring the specific heat of YBa2Cu3O6.56 we determine the quasiparticle density of states from the superconducting state well into the magnetic-field induced resistive state. At very high magnetic fields the specific heat exhibits both the conventional temperature dependence and quantum oscillations expected for a Fermi liquid. On the other hand, the magnetic-field dependence of the quasiparticle density of states follows root H behaviour that persists smoothly through the zero-resistance transition, giving evidence of a developed d-wave superconducting gap over the entire magnetic field range measured. C1 [Riggs, Scott C.; Vafek, O.; Kemper, J. B.; Boebinger, G. S.] Florida State Univ, Dept Phys, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. [Betts, J. B.; Migliori, A.; Balakirev, F. F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Hardy, W. N.; Liang, Ruixing; Bonn, D. A.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. [Hardy, W. N.; Liang, Ruixing; Bonn, D. A.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. RP Riggs, SC (reprint author), Florida State Univ, Dept Phys, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. FU NSF [DMR-0955561]; Natural Science and Engineering Research Council of Canada; Canadian Institute for Advanced Research; State of Florida; National Science Foundation's Division of Materials Research [DMR-0654118] FX The authors gratefully acknowledge discussions with N. Harrison, P. Hirschfeld, S. Kivelson, P. A. Lee, R. McDonald, S. Sachdev, J. Singleton, Z. Tesanovic, T. Senthil, and C. M. Varma. S. C. R. acknowledges financial support from ICAM. W. N. H., R. L., and D. A. B. are supported by the Natural Science and Engineering Research Council of Canada and the Canadian Institute for Advanced Research. O.V. was supported in part by the NSF CAREER award under Grant No. DMR-0955561. The National High Magnetic Field Laboratory is supported by the State of Florida and the National Science Foundation's Division of Materials Research through DMR-0654118. NR 29 TC 79 Z9 79 U1 2 U2 45 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 EI 1745-2481 J9 NAT PHYS JI Nat. Phys. PD APR PY 2011 VL 7 IS 4 BP 332 EP 335 DI 10.1038/NPHYS1921 PG 4 WC Physics, Multidisciplinary SC Physics GA 744DZ UT WOS:000289076000020 ER PT J AU Pace, DC Fisher, RK Garcia-Munoz, M Heidbrink, WW McKee, GR Murakami, M Muscatello, CM Nazikian, R Park, JM Petty, CC Rhodes, TL Staebler, GM Van Zeeland, MA Waltz, RE White, RB Yu, JH Zhang, W Zhu, YB AF Pace, D. C. Fisher, R. K. Garcia-Munoz, M. Heidbrink, W. W. McKee, G. R. Murakami, M. Muscatello, C. M. Nazikian, R. Park, J. M. Petty, C. C. Rhodes, T. L. Staebler, G. M. Van Zeeland, M. A. Waltz, R. E. White, R. B. Yu, J. H. Zhang, W. Zhu, Y. B. TI Transport of energetic ions due to sawteeth, Alfven eigenmodes and microturbulence SO NUCLEAR FUSION LA English DT Article ID DIII-D TOKAMAK; CHAPTER 5; PLASMAS; INSTABILITIES; SIMULATIONS; PHYSICS AB Utilizing an array of new diagnostics and simulation/modelling techniques, recent DIII-D experiments have elucidated a variety of energetic ion transport behaviour in the presence of instabilities ranging from large-scale sawteeth to fine spatial scale microturbulence. Important new insights include sawteeth, such as those of the ITER baseline scenario, causing major redistribution of the energetic ion population; high levels of transport induced by low-amplitude Alfven eigenmodes can be caused by the integrated effect of a large number of simultaneous modes; and microturbulence can contribute to the removal of alpha ash while having little effect on fusion alphas. This paper provides an overview of recent and upcoming results from the DIII-D Energetic Particles research programme. C1 [Pace, D. C.; Heidbrink, W. W.; Muscatello, C. M.; Zhang, W.; Zhu, Y. B.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. [Fisher, R. K.; Petty, C. C.; Staebler, G. M.; Van Zeeland, M. A.; Waltz, R. E.] Gen Atom Co, San Diego, CA 92186 USA. [Garcia-Munoz, M.] Max Planck Inst Plasma Phys, D-85748 Garching, Germany. [McKee, G. R.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA. [Murakami, M.; Park, J. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Nazikian, R.; White, R. B.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Rhodes, T. L.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Yu, J. H.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. RP Pace, DC (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. EM pacedc@fusion.gat.com RI garcia-munoz, manuel/C-6825-2008; White, Roscoe/D-1773-2013 OI garcia-munoz, manuel/0000-0002-3241-502X; White, Roscoe/0000-0002-4239-2685 FU US Department of Energy [SC-G903402, DE-FC02-04ER54698, DE-FG02-89ER53296, DE-FG02-08ER54999, DE-AC05-00OR22725, DE-AC02-09CH11466, DE-FG03-08ER54984, DE-FG02-07ER54917]; SciDAC GSEP FX This work was supported by the US Department of Energy under SC-G903402, DE-FC02-04ER54698, DE-FG02-89ER53296, DE-FG02-08ER54999, DE-AC05-00OR22725, DE-AC02-09CH11466, DE-FG03-08ER54984, DE-FG02-07ER54917 and SciDAC GSEP. Informative discussions with Z. Lin are gratefully acknowledged. The authors would like to thank the DIII-D team for their efforts in support of the multiple experiments and diagnostic developments necessary to undertake this research. In addition, the author DCP would like to thank R. S. Granetz, the Alcator C-Mod team, and the MIT Plasma Science and Fusion Center for their hospitality during the completion of this work. NR 52 TC 9 Z9 9 U1 3 U2 18 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD APR PY 2011 VL 51 IS 4 AR 043012 DI 10.1088/0029-5515/51/4/043012 PG 8 WC Physics, Fluids & Plasmas SC Physics GA 744FT UT WOS:000289081000013 ER PT J AU Testa, D Spong, D Panis, T Blanchard, P Fasoli, A AF Testa, D. Spong, D. Panis, T. Blanchard, P. Fasoli, A. CA JET-EFDA Contributors TI Recent JET experiments on Alfven eigenmodes with intermediate toroidal mode numbers: measurements and modelling of n=3 toroidal Alfven eigenmodes with the TAEFL code SO NUCLEAR FUSION LA English DT Article ID TOKAMAK PLASMAS; GYROFLUID MODEL; BURNING PLASMA; INSTABILITIES; PARTICLES; STABILITY AB This paper reports the results of recent experiments performed on the JET tokamak on Alfven eigenmodes (AEs) with toroidal mode number (n) in the range n = 3-15. The stability properties of these medium-n AEs are investigated experimentally using a new set of compact in-vessel antennas, providing a direct and real-time measurement of the frequency, damping rate and amplitude for each individual toroidal mode number. We report here the quantitative analysis of the measurements of the damping rate for stable n = 3 toroidal AEs as a function of the edge plasma elongation, and the theoretical analysis of these data with the TAEFL code. The TAEFL results are in excellent qualitative agreement with the measurements, reproducing well the experimental scaling of increasing damping rate versus increasing edge elongation, and in many cases are also quantitatively correct, with a difference with respect to the measurements below 30%, particularly for magnetic configurations that have a larger edge magnetic shear. C1 [Testa, D.; Panis, T.; Blanchard, P.; Fasoli, A.] Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, CRPP, CH-1015 Lausanne, CH, Switzerland. JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Spong, D.] Oak Ridge Natl Lab, Fus Energy Theory Grp, Oak Ridge, TN USA. [Blanchard, P.] EFDA CSU, Culham Sci Ctr, Abingdon, Oxon, England. RP Testa, D (reprint author), Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, CRPP, CH-1015 Lausanne, CH, Switzerland. EM duccio.testa@epfl.ch RI Spong, Donald/C-6887-2012 OI Spong, Donald/0000-0003-2370-1873 FU EURATOM; Swiss National Science Foundation FX This work was supported by EURATOM under the contract of Association with CRPP-EPFL, and was carried out within the framework of the European Fusion Development Agreement. This work was also partly supported by the Swiss National Science Foundation. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors would also like to thank the various members of the CRPP, MIT and JET staff that have contributed to the design, installation, commissioning and routine operation of the new TAE antenna system, and particularly A. Goodyear (CCFE), H. Carfantan (LATT) and M. Tsalas (JET-EFDA-CSU). The authors would also like to thank the reviewers for their useful comments and suggestions on the first draft of this paper. NR 32 TC 8 Z9 8 U1 0 U2 5 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD APR PY 2011 VL 51 IS 4 AR 043009 DI 10.1088/0029-5515/51/4/043009 PG 11 WC Physics, Fluids & Plasmas SC Physics GA 744FT UT WOS:000289081000010 ER PT J AU Tzanos, CP AF Tzanos, Constantine P. TI IMPROVED SIMULATIONS OF HEAT TRANSFER IN LIQUID-METAL FLOWS SO NUCLEAR TECHNOLOGY LA English DT Article DE liquid-metal flows; heat transfer; turbulence models ID PRANDTL NUMBER; MODEL AB In liquid-metal flows, the predictions of the Nusselt number (heat transfer) by Reynolds-averaged Navier-Stokes models of turbulence that use the assumption of a constant turbulent Prandtl number can be significantly off Heat transfer analyses were performed with a number of turbulence models for flows in a triangular rod bundle and in a pipe, and model predictions were compared with experimental data. Emphasis was placed on the low Reynolds (low-Re) number k-epsilon model that resolves the boundary layer and does not use "logarithmic wall functions." The high Reynolds (high-Re) number k-epsilon model underpredicts the Nusselt number up to 30%, while the low-Re number model overpredicts it up to 34%. For high Peclet number values, the low-Re number model provides better predictions than the high-Re number model. For Peclet numbers higher than 1500, the predictions of the Reynolds stress model (RSM) are in very good agreement with experimental measurements, but for lower Peclet number values its predictions are significantly off A relationship was developed that expresses the turbulent Prandtl number as a function of the ratio of the turbulent viscosity to the molecular viscosity. With this modified turbulent Pranda number, for the flow in the rod bundle the predictions of the low-Re number model are well within the spread of the experimental measurements. For pipe flow, the model predictions are not as sensitive to the correction of the turbulent Prandtl number as they are in the case of the flow in a bundle. The modified low-Re number model underpredicts the limited experimental data by 4%. C1 Argonne Natl Lab, Argonne, IL 60439 USA. RP Tzanos, CP (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM tzanos@anl.gov NR 22 TC 2 Z9 2 U1 1 U2 1 PU AMER NUCLEAR SOC PI LA GRANGE PK PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA SN 0029-5450 J9 NUCL TECHNOL JI Nucl. Technol. PD APR PY 2011 VL 174 IS 1 BP 41 EP 50 PG 10 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 743SO UT WOS:000289039200004 ER PT J AU Phongikaroon, S Herrmann, SD Simpson, MF AF Phongikaroon, Supathorn Herrmann, Steven D. Simpson, Michael F. TI DIFFUSION MODEL FOR ELECTROLYTIC REDUCTION OF URANIUM OXIDES IN A MOLTEN LiCl-Li2O SALT SO NUCLEAR TECHNOLOGY LA English DT Article DE electrolytic reduction; diffusion model; molten salt ID ELECTROCHEMICAL REDUCTION; FUEL AB In this study, a diffusion-based kinetic model essential for design and operational analysis of spent nuclear fuel reduction has been developed. The model considers the cathode side of the system to be rate limiting and deals with diffusion of lithium metal through the basket loaded with uranium oxide (UO2 or U3O8). Faradays' law was implemented into the model to observe the electrochemical effect on the model. Solutions with different conditions are developed, and detailed results are presented. These solutions were compared against experimental bench scale data. At high operating current conditions (I > 0.8 A), the model fits the data well. The fitting resulted in estimated effective lithium diffusion coefficients for high and low void fraction UO2, crushed fuels of 8.5 X 10(-4) cm(2)/s and 2.2 X 10(-4) cm(2)/s, respectively. The effective diffusion coefficient for U3O8 is estimated to be 8.6 X 10(-4) cm(2)/s. In some experiments, a porous magnesium oxide basket was used for containing the U3O8. It was estimated that the lithium diffusion coefficient through this magnesia basket is 3.3 X 10(-5) cm(2)/s. C1 [Phongikaroon, Supathorn] Univ Idaho, Ctr Adv Energy Studies, Idaho Falls, ID 83401 USA. [Herrmann, Steven D.; Simpson, Michael F.] Idaho Natl Lab, Pyroproc Technol Dept, Idaho Falls, ID 83415 USA. RP Phongikaroon, S (reprint author), Univ Idaho, Ctr Adv Energy Studies, 995 Univ Blvd, Idaho Falls, ID 83401 USA. EM supathor@uidaho.edu NR 15 TC 6 Z9 6 U1 1 U2 9 PU AMER NUCLEAR SOC PI LA GRANGE PK PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA SN 0029-5450 J9 NUCL TECHNOL JI Nucl. Technol. PD APR PY 2011 VL 174 IS 1 BP 85 EP 93 PG 9 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 743SO UT WOS:000289039200008 ER PT J AU Gandolfi, S Schmidt, KE Carlson, J AF Gandolfi, S. Schmidt, K. E. Carlson, J. TI BEC-BCS crossover and universal relations in unitary Fermi gases SO PHYSICAL REVIEW A LA English DT Article AB The contact parameter in unitary Fermi gases governs the short-range correlations and high-momentum properties of the system. We perform accurate quantum Monte Carlo calculations with highly optimized trial functions to precisely determine this parameter at T = 0, demonstrate its universal application to a variety of observables, and determine the regions of momentum and energy over which the leading short-range behavior is dominant. We derive Tan's expressions for the contact parameter using just the short-range behavior of the ground-state many-body wave function, and use this behavior to calculate the two-body distribution function, one-body density matrix, and the momentum distribution of unitary Fermi gases; providing a precise value of the contact parameter that can be compared to experiments. C1 [Gandolfi, S.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Schmidt, K. E.; Carlson, J.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. RP Gandolfi, S (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. OI Gandolfi, Stefano/0000-0002-0430-9035 FU US Department of Energy, Office of Nuclear Physics [DE-FC02-07ER41457 (UNEDF SciDAC), DE-AC52-06NA25396]; National Science Foundation [PHY-0757703] FX We thank J. E. Drut for valuable discussions. This work is supported by the US Department of Energy, Office of Nuclear Physics, under Contracts DE-FC02-07ER41457 (UNEDF SciDAC) and DE-AC52-06NA25396 and by the National Science Foundation Grant PHY-0757703. K.E.S. thanks the Los Alamos National Laboratory and the New Mexico Consortium for their hospitality. Computer time was made available by Los Alamos Open Supercomputing. NR 30 TC 35 Z9 35 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD APR 1 PY 2011 VL 83 IS 4 AR 041601 DI 10.1103/PhysRevA.83.041601 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 743XL UT WOS:000289052700001 ER PT J AU Miyabe, S Haxton, DJ Lawler, KV Orel, AE McCurdy, CW Rescigno, TN AF Miyabe, S. Haxton, D. J. Lawler, K. V. Orel, A. E. McCurdy, C. W. Rescigno, T. N. TI Vibrational Feshbach resonances in near-threshold HOCO- photodetachment: A theoretical study SO PHYSICAL REVIEW A LA English DT Article ID DIPOLE-BOUND ANIONS; CROSS-SECTIONS; ACETALDEHYDE ENOLATE; ELECTRONIC-STRUCTURE; POLAR-MOLECULES; NEGATIVE-IONS; DRUDE-MODEL; STATES; EXCITATION; COLLISIONS AB The results of a theoretical study of HOCO- photodetachment are presented with a view toward understanding the origin of two peaks observed by Lu and Continetti [Phys. Rev. Lett. 99, 113005 (2007)] in the photoelectron kinetic energy spectrum very close to threshold. It is shown that the peaks can be attributed to vibrational Feshbach resonances of dipole-bound trans-HOCO-, and not s- and p-wave shape resonances as previously assumed. Fixed-nuclei variational electron-HOCO scattering calculations are used to compute photodetachment cross sections and laboratory-frame photoelectron angular distributions. The calculations show a broad A ''(pi*)-shape resonance several electron volts above threshold. C1 [Miyabe, S.; Haxton, D. J.; Lawler, K. V.; McCurdy, C. W.; Rescigno, T. N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Miyabe, S.; McCurdy, C. W.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [Orel, A. E.; McCurdy, C. W.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. RP Miyabe, S (reprint author), Stanford Univ, Dept Chem, Stanford, CA 94305 USA. FU US Department of Energy by the University of California Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; US DOE Office of Basic Energy Sciences, Division of Chemical Sciences; National Science Foundation [PHY-05-55401] FX This work was performed under the auspices of the US Department of Energy by the University of California Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231 and was supported by the US DOE Office of Basic Energy Sciences, Division of Chemical Sciences. A.E.O. acknowledges support from the National Science Foundation (Grant No. PHY-05-55401). NR 43 TC 4 Z9 4 U1 1 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD APR 1 PY 2011 VL 83 IS 4 AR 043401 DI 10.1103/PhysRevA.83.043401 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 743XL UT WOS:000289052700002 ER PT J AU Kohley, Z May, LW Wuenschel, S Colonna, M Di Toro, M Zielinska-Pfabe, M Hagel, K Tripathi, R Bonasera, A Souliotis, GA Shetty, DV Galanopoulos, S Mehlman, M Smith, WB Soisson, SN Stein, BC Yennello, SJ AF Kohley, Z. May, L. W. Wuenschel, S. Colonna, M. Di Toro, M. Zielinska-Pfabe, M. Hagel, K. Tripathi, R. Bonasera, A. Souliotis, G. A. Shetty, D. V. Galanopoulos, S. Mehlman, M. Smith, W. B. Soisson, S. N. Stein, B. C. Yennello, S. J. TI Transverse collective flow and midrapidity emission of isotopically identified light charged particles SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; MASS FRAGMENT PRODUCTION; ISOSPIN-DEPENDENCE; NUCLEAR COLLISIONS; INTERMEDIATE ENERGIES; DETECTOR ARRAY; FERMI ENERGIES; NEUTRON-STARS; DYNAMICS; EQUATION AB The transverse flow and relative midrapidity yield of isotopically identified light charged particles (LCPs) has been examined for the 35MeV/nucleon Zn-70 + Zn-70, Zn-64 + Zn-64, and Ni-64 + Ni-64 systems. A large enhancement of the midrapidity yield of the LCPs was observed relative to the yield near the projectile rapidity. In particular, this enhancement was increased for the more neutron-rich LCPs demonstrating a preference for the production of neutron-rich fragments in the midrapidity region. Additionally, the transverse flow of the LCPs was extracted, which provides insight into the average movement of the particles in the midrapidity region. Isotopic and isobaric effects were observed in the transverse flow of the fragments. In both cases, the transverse flow was shown to decrease with an increasing neutron content in the fragments. A clear inverse relationship between the transverse flow and the relative midrapidity yield is shown. The increased relative midrapidity emission produces a decreased transverse flow. The stochastic mean-field model was used for comparison to the experimental data. The results showed that the model was able to reproduce the general isotopic and isobaric trends for the midrapidity emission and transverse flow. The sensitivity of these observables to the density dependence of the symmetry energy was explored. The results indicate that the transverse flow and midrapidity emission of the LCPs are sensitive to the denisty dependence of the symmetry energy. C1 [Kohley, Z.; May, L. W.; Wuenschel, S.; Soisson, S. N.; Stein, B. C.; Yennello, S. J.] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA. [Kohley, Z.; May, L. W.; Wuenschel, S.; Hagel, K.; Tripathi, R.; Bonasera, A.; Souliotis, G. A.; Shetty, D. V.; Galanopoulos, S.; Mehlman, M.; Smith, W. B.; Soisson, S. N.; Stein, B. C.; Yennello, S. J.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA. [Colonna, M.; Di Toro, M.; Bonasera, A.] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy. [Di Toro, M.] Univ Catania, Dept Phys & Astron, I-95124 Catania, Italy. [Zielinska-Pfabe, M.] Smith Coll, Northampton, MA 01063 USA. [Souliotis, G. A.] Univ Athens, Dept Chem, Phys Chem Lab, GR-15771 Athens, Greece. [Mehlman, M.] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA. RP Kohley, Z (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. EM zkohley@comp.tamu.edu RI Yennello, Sherry/B-5803-2015 OI Yennello, Sherry/0000-0003-3963-5217 FU Robert A. Welch Foundation [A-1266]; Department of Energy [DE-FG03-93ER40773] FX We thank the staff members of the Texas A&M Cyclotron Institute for the excellent beam quality. This work was supported in part by the Robert A. Welch Foundation through Grant No. A-1266 and the Department of Energy through Grant No. DE-FG03-93ER40773. We also thank the Target Lab at Argonne National Laboratory for the fabrication of the 70Zn target and the Laboratory for Molecular Simulation at Texas A&M University for providing computer time for the SMF calculations. NR 75 TC 36 Z9 38 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD APR 1 PY 2011 VL 83 IS 4 AR 044601 DI 10.1103/PhysRevC.83.044601 PG 10 WC Physics, Nuclear SC Physics GA 743YE UT WOS:000289054900002 ER PT J AU Sanchez, PD Lees, JP Poireau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Milanes, DA Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Brown, DN Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Randle-Conde, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Kravchenko, EA Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, C Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Mancinelli, G Meadows, BT Sokoloff, MD Bloom, PC Ford, WT Gaz, A Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Jasper, H Karbach, TM Petzold, A Spaan, B Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Garzia, I Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Tosi, S Bhuyan, B Prasad, V Lee, CL Morii, M Adametz, A Marks, J Uwer, U Bernlochner, FU Ebert, M Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gritsan, AV Guo, ZJ Arnaud, N Davier, M Derkach, D da Costa, JF Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Perez, A Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wormser, G Lange, DJ Wright, DM Bingham, I Chavez, CA Coleman, JP Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Hafner, A Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD Anderson, J Cenci, R Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Salvati, E Cowan, R Dujmic, D Sciolla, G Zhao, M Lindemann, D Patel, PM Robertson, SH Schram, M Biassoni, P Lazzaro, A Lombardo, V Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kass, R Morris, JP Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Ben-Haim, E Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Prendki, J Sitt, S Biasini, M Manoni, E Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Neri, N Paoloni, E Rizzo, G Walsh, JJ Pegna, DL Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Renga, F Hartmann, T Leddig, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Zito, M Allen, MT Aston, D Bard, DJ Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Marsiske, H Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Santoro, V Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Sun, S Suzuki, K Thompson, JM Va'vra, J Wagner, AP Weaver, M Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Young, CC Ziegler, V Chen, XR Park, W Purohit, MV White, RM Wilson, JR Sekula, SJ Bellis, M Burchat, PR Edwards, AJ Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Guttman, N Soffer, A Lund, P Spanier, SM Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Bomben, M Lanceri, L Vitale, L Lopez-March, N Martinez-Vidal, F Oyanguren, A Albert, J Banerjee, S Choi, HHF Hamano, K King, GJ Kowalewski, R Lewczuk, MJ Lindsay, C Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Latham, TE Puccio, EMT Band, HR Dasu, S Flood, KT Pan, Y Prepost, R Vuosalo, CO Wu, SL AF Sanchez, P. del Amo Lees, J. P. Poireau, V. Prencipe, E. Tisserand, V. Tico, J. Garra Grauges, E. Martinelli, M. Milanes, D. A. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Brown, D. N. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Osipenkov, I. L. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. Khan, A. Randle-Conde, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Kravchenko, E. A. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Bondioli, M. Curry, S. Kirkby, D. Lankford, A. J. Mandelkern, M. Martin, E. C. Stoker, D. P. Atmacan, H. Gary, J. W. Liu, F. Long, O. Vitug, G. M. Campagnari, C. Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. Eisner, A. M. Heusch, C. A. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schalk, T. Schumm, B. A. Seiden, A. Winstrom, L. O. Cheng, C. H. Doll, D. A. Echenard, B. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Dubrovin, M. S. Mancinelli, G. Meadows, B. T. Sokoloff, M. D. Bloom, P. C. Ford, W. T. Gaz, A. Nagel, M. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Jasper, H. Karbach, T. M. Petzold, A. Spaan, B. Kobel, M. J. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Watson, J. E. Andreotti, M. Bettoni, D. Bozzi, C. Calabrese, R. Cecchi, A. Cibinetto, G. Fioravanti, E. Franchini, P. Garzia, I. Luppi, E. Munerato, M. Negrini, M. Petrella, A. Piemontese, L. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Nicolaci, M. Pacetti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Tosi, S. Bhuyan, B. Prasad, V. Lee, C. L. Morii, M. Adametz, A. Marks, J. Uwer, U. Bernlochner, F. U. Ebert, M. Lacker, H. M. Lueck, T. Volk, A. Dauncey, P. D. Tibbetts, M. Behera, P. K. Mallik, U. Chen, C. Cochran, J. Crawley, H. B. Dong, L. Meyer, W. T. Prell, S. Rosenberg, E. I. Rubin, A. E. Gritsan, A. V. Guo, Z. J. Arnaud, N. Davier, M. Derkach, D. da Costa, J. Firmino Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Perez, A. Roudeau, P. Schune, M. H. Serrano, J. Sordini, V. Stocchi, A. Wang, L. Wormser, G. Lange, D. J. Wright, D. M. Bingham, I. Chavez, C. A. Coleman, J. P. Fry, J. R. Gabathuler, E. Gamet, R. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Paramesvaran, S. Wren, A. C. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Hafner, A. Alwyn, K. E. Bailey, D. Barlow, R. J. Jackson, G. Lafferty, G. D. Anderson, J. Cenci, R. Jawahery, A. Roberts, D. A. Simi, G. Tuggle, J. M. Dallapiccola, C. Salvati, E. Cowan, R. Dujmic, D. Sciolla, G. Zhao, M. Lindemann, D. Patel, P. M. Robertson, S. H. Schram, M. Biassoni, P. Lazzaro, A. Lombardo, V. Palombo, F. Stracka, S. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Raven, G. Snoek, H. L. Jessop, C. P. Knoepfel, K. J. LoSecco, J. M. Wang, W. F. Corwin, L. A. Honscheid, K. Kass, R. Morris, J. P. Blount, N. L. Brau, J. Frey, R. Igonkina, O. Kolb, J. A. Rahmat, R. Sinev, N. B. Strom, D. Strube, J. Torrence, E. Castelli, G. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simonetto, F. Stroili, R. Ben-Haim, E. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Prendki, J. Sitt, S. Biasini, M. Manoni, E. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Neri, N. Paoloni, E. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Lu, C. Olsen, J. Smith, A. J. S. Telnov, A. V. Anulli, F. Baracchini, E. Cavoto, G. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Renga, F. Hartmann, T. Leddig, T. Schroeder, H. Waldi, R. Adye, T. Franek, B. Olaiya, E. O. Wilson, F. F. Emery, S. de Monchenault, G. Hamel Vasseur, G. Yeche, Ch. Zito, M. Allen, M. T. Aston, D. Bard, D. J. Bartoldus, R. Benitez, J. F. Cartaro, C. Convery, M. R. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Field, R. C. Sevilla, M. Franco Fulsom, B. G. Gabareen, A. M. Graham, M. T. Grenier, P. Hast, C. Innes, W. R. Kelsey, M. H. Kim, H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Li, S. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Marsiske, H. Muller, D. R. Neal, H. Nelson, S. O'Grady, C. P. Ofte, I. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Santoro, V. Schindler, R. H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Sun, S. Suzuki, K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Yarritu, A. K. Young, C. C. Ziegler, V. Chen, X. R. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Sekula, S. J. Bellis, M. Burchat, P. R. Edwards, A. J. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Guttman, N. Soffer, A. Lund, P. Spanier, S. M. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Lanceri, L. Vitale, L. Lopez-March, N. Martinez-Vidal, F. Oyanguren, A. Albert, J. Banerjee, Sw. Choi, H. H. F. Hamano, K. King, G. J. Kowalewski, R. Lewczuk, M. J. Lindsay, C. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Latham, T. E. Puccio, E. M. T. Band, H. R. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Analysis of the D+ -> K- pi(+) e(+) nu(e) decay channel SO PHYSICAL REVIEW D LA English DT Article ID HIGH-ENERGY-PHYSICS; STRANGE QUARK MASS; RADIATIVE-CORRECTIONS; FORM-FACTORS; SCATTERING; QCD; ROY AB Using 347: 5 fb(-1) of data recorded by the BABAR detector at the PEP-II electron-positron collider, 244 x 10(3) signal events for the D+ -> K- pi(+)e(+)nu(e) decay channel are analyzed. This decay mode is dominated by the (K) over bar*(892)(0) contribution. We determine the (K) over bar*(892)(0) parameters: m(K*(892)0) (895.4 +/- 0.2 +/- 0.2) MeV/c(2),Gamma(0)(K*(892)0) (46.5 +/- 0.3 +/- 0.2) MeV/c(2), and the Blatt-Weisskopf parameter r(BW) = 2.1 +/- 0.5 +/- 0.5 (GeV/c)(-1), where the first uncertainty comes from statistics and the second from systematic uncertainties. We also measure the parameters defining the corresponding hadronic form factors at q(2) = 0 (r(V) = V(0)/A(1)(0) = 1.463 +/- 0.031, r(2) = A(2)(0)/A(1)(0) = 0.801 +/- 0.020 +/- 0.020) and the value of the axial-vector pole mass parametrizing the q(2) variation of A(1) and A(2): m(A) (2.63 +/- 0.10 +/- 0.13) GeV/c(2). The S-wave fraction is equal to (5.79 +/- 0.16 +/- 0: 15)%. Other signal components correspond to fractions below 1%. Using the D+ -> K-pi(+)pi(+) channel as a normalization, we measure the D+ semileptonic branching fraction: B(D+ K-pi(+)e(+)nu(e)) (4.00 +/- 0: 03 +/- 0.04 +/- 0.09) x 10(-2), where the third uncertainty comes from external inputs. We then obtain the value of the hadronic form factor A(1) at q(2) 0: A(1)(0) 0.6200 +/- 0.0056 +/- 0.0065 +/- 0.0071. Fixing the P-wave parameters, we measure the phase of the S wave for several values of the K pi mass. 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[Bomben, M.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Bomben, M.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy. [Lopez-March, N.; Martinez-Vidal, F.; Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Choi, H. H. F.; Hamano, K.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Lindsay, C.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Harrison, P. F.; Latham, T. E.; Puccio, E. M. T.; Band, H. R.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. Univ Wisconsin, Madison, WI 53706 USA. [Peruzzi, I. M.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Sanchez, PD (reprint author), Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Kravchenko, Evgeniy/F-5457-2015; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Calabrese, Roberto/G-4405-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; OI Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Martinez Vidal, F*/0000-0001-6841-6035; Kolomensky, Yury/0000-0001-8496-9975; Lo Vetere, Maurizio/0000-0002-6520-4480; Lusiani, Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Raven, Gerhard/0000-0002-2897-5323 FU U.S. Department of Energy and National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); European Union; A.P. Sloan Foundation (U.S.); Binational Science Foundation (U.S.-Israel) FX The authors would like to thank S. Descotes-Genon and A. Le Yaouanc for fruitful discussions, especially on the charm meson semileptonic decay rate formalism. We also thank V. Bernard, B. Moussallam, and E. Passemar for discussions on chiral perturbation theory and different aspects of the K pi system. We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A.P. Sloan Foundation (U.S.) and the Binational Science Foundation (U.S.-Israel). NR 54 TC 13 Z9 13 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD APR 1 PY 2011 VL 83 IS 7 AR 072001 DI 10.1103/PhysRevD.83.072001 PG 35 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 743YI UT WOS:000289055500002 ER PT J AU Schoenherr, RM Kelly-Spratt, KS Lin, CW Whiteaker, JR Liu, T Holzman, T Coleman, I Feng, LC Lorentzen, TD Krasnoselsky, AL Wang, P Liu, Y Gurley, KE Amon, LM Schepmoes, AA Moore, RJ Camp, DG Chodosh, LA Smith, RD Nelson, PS McIntosh, MW Kemp, CJ Paulovich, AG AF Schoenherr, Regine M. Kelly-Spratt, Karen S. Lin, ChenWei Whiteaker, Jeffrey R. Liu, Tao Holzman, Ted Coleman, Ilsa Feng, Li-Chia Lorentzen, Travis D. Krasnoselsky, Alexei L. Wang, Pei Liu, Yan Gurley, Kay E. Amon, Lynn M. Schepmoes, Athena A. Moore, Ronald J. Camp, David G., II Chodosh, Lewis A. Smith, Richard D. Nelson, Peter S. McIntosh, Martin W. Kemp, Christopher J. Paulovich, Amanda G. TI Proteome and transcriptome profiles of a Her2/Neu-driven mouse model of breast cancer SO PROTEOMICS CLINICAL APPLICATIONS LA English DT Article DE Breast cancer; Her2; Mouse; Proteome; Transcriptome ID TANDEM MASS-SPECTROMETRY; CYSTEINYL-PEPTIDE ENRICHMENT; LC-MS; STATISTICAL-MODEL; PERFORMANCE; THROUGHPUT; STANDARDS; PROTEINS; SYSTEM; IDENTIFICATIONS AB Purpose: We generated extensive transcriptional and proteomic profiles from a Her2-driven mouse model of breast cancer that closely recapitulates human breast cancer. This report makes these data publicly available in raw and processed forms, as a resource to the community. Importantly, we previously made biospecimens from this same mouse model freely available through a sample repository, so researchers can obtain samples to test biological hypotheses without the need of breeding animals and collecting biospecimens. Experimental design: Twelve datasets are available, encompassing 841 LC-MS/MS experiments (plasma and tissues) and 255 microarray analyses of multiple tissues (thymus, spleen, liver, blood cells, and breast). Cases and controls were rigorously paired to avoid bias. Results: In total, 18 880 unique peptides were identified (PeptideProphet peptide error rate <= 1%), with 3884 and 1659 non-redundant protein groups identified in plasma and tissue datasets, respectively. Sixty-one of these protein groups overlapped between cancer plasma and cancer tissue. Conclusions and clinical relevance: These data are of use for advancing our understanding of cancer biology, for software and quality control tool development, investigations of analytical variation in MS/MS data, and selection of proteotypic peptides for multiple reaction monitoring-MS. The availability of these datasets will contribute positively to clinical proteomics. C1 [Schoenherr, Regine M.; Kelly-Spratt, Karen S.; Lin, ChenWei; Whiteaker, Jeffrey R.; Holzman, Ted; Coleman, Ilsa; Feng, Li-Chia; Lorentzen, Travis D.; Krasnoselsky, Alexei L.; Wang, Pei; Liu, Yan; Gurley, Kay E.; Amon, Lynn M.; Nelson, Peter S.; McIntosh, Martin W.; Kemp, Christopher J.; Paulovich, Amanda G.] Fred Hutchinson Canc Res Ctr, Seattle, WA 98109 USA. [Liu, Tao; Schepmoes, Athena A.; Moore, Ronald J.; Camp, David G., II; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Chodosh, Lewis A.] Univ Penn, Sch Med, Dept Canc Biol, Philadelphia, PA 19104 USA. RP Paulovich, AG (reprint author), Fred Hutchinson Canc Res Ctr, 1100 Fairview Ave N, Seattle, WA 98109 USA. EM apaulovi@fhcrc.org RI Smith, Richard/J-3664-2012; Liu, Tao/A-9020-2013; OI Smith, Richard/0000-0002-2381-2349; Liu, Tao/0000-0001-9529-6550; Lin, Cheng/0000-0003-3653-9633 FU NCI/SAIC [23XS144A]; Paul G. Allen Family Foundation; Entertainment Industry Foundation (EIF); NIH National Center for Research Resources [RR018522]; U.S. Department of Energy (DOE) Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL) [DE-AC05-76RLO-1830] FX This work was funded by NCI/SAIC subcontract 23XS144A to Drs. Amanda G. Paulovich and Martin W. McIntosh, by a grant from The Paul G. Allen Family Foundation to Drs. Peter S. Nelson, Martin W. McIntosh, Christopher J. Kemp, and Amanda G. Paulovich, by the Entertainment Industry Foundation (EIF) and the EIF Women's Cancer Research Fund to the Breast Cancer Biomarker Discovery Consortium (Dr. Amanda G. Paulovich), and by generous gifts from the Keck Foundation and the Canary Foundation to Dr. Amanda G. Paulovich. Portions of this research were supported by the NIH National Center for Research Resources (RR018522; Richard D. Smith, PI), and the Environmental Molecular Science Laboratory (a national scientific user facility sponsored by the U.S. Department of Energy (DOE) Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL)). PNNL is operated by Battelle Memorial Institute for the DOE under contract DE-AC05-76RLO-1830. We thank Dr. Todd R. Golub, Casey Gates, and Diane Gage of the Broad Institute's microarray facility for generating microarray data. We thank members of our advisory board for advice: Eleftherios P. Diamandis, Ruedi Aebersold, Leigh N. Anderson, Nicole D. Urban, Valeri I. Vasioukhin, Frederick Appelbaum, Mark T. Groudine, James Roberts, and Daniel E. Gottschling. We thank all members of the Allen Project team: Lee Hartwell, Samir M. Hanash, Sharon J. Pitteri, Hong Wong, Denny Liggitt, Daniel B. Martin, Ted Whitmore, Amelia Peterson, Robyn L. Prueitt, Matthew Fitzgibbon, Jimmy K. Eng, Damon H. May, Abby Stimmel, Yuzheng Zhang, Sara L. Zriny, Ruth Dumpit, Mary M. Trute, Liming Hou, Izabela Sokal, Jacob Kennedy, and Uliana J. Voytovich. We also thank Matthew Monroe and Samuel Purvine for their assistance. NR 35 TC 11 Z9 11 U1 0 U2 2 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1862-8346 J9 PROTEOM CLIN APPL JI Proteom. Clin. Appl. PD APR PY 2011 VL 5 IS 3-4 BP 179 EP 188 DI 10.1002/prca.201000037 PG 10 WC Biochemical Research Methods; Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 742MH UT WOS:000288947700008 PM 21448875 ER PT J AU Sawakuchi, AO Blair, MW DeWitt, R Faleiros, FM Hyppolito, T Guedes, CCF AF Sawakuchi, A. O. Blair, M. W. DeWitt, R. Faleiros, F. M. Hyppolito, T. Guedes, C. C. F. TI Thermal history versus sedimentary history: OSL sensitivity of quartz grains extracted from rocks and sediments SO QUATERNARY GEOCHRONOLOGY LA English DT Article DE Optically stimulated luminescence; Quartz; Single grain; Quartz provenance ID RIBEIRA SHEAR ZONE; FIRING TEMPERATURE; LUMINESCENCE CHARACTERISTICS; SOUTHEASTERN BRAZIL; SOUTHERN CHILE; GEOTHERMOMETER; ALUMINUM; PROTOCOL; SAMPLES AB The optically stimulated luminescence (OSL) sensitivity of quartz has a significant influence on luminescence dating procedures. Furthermore, identifying the natural controls of quartz OSL sensitivity is an important step towards new applications of OSL in geology such as provenance tracing. We evaluate the OSL sensitivity (total and the proportion of the informally assigned fast, medium and slow components) of single grains of quartz extracted from 10 different igneous and metamorphic rocks with known formation conditions; and from fluvial and coastal sediments with different sedimentary histories and known source rocks. This sample suite allows assessment of the variability of the OSL sensitivity of single quartz grains with respect to their primary origin and sedimentary history. We observed significant variability in the OSL sensitivity of grains within all studied rock and sediment samples, with the brightest grains of each sample being those dominated by the fast component. Quartz from rocks formed under high temperature (> 500 degrees C) conditions, such as rhyolites and metamorphic rocks from the amphibolite facies, display higher OSL sensitivity. The OSL sensitivity of fluvial sediments which have experienced only a short transport distance is relatively low. These sediments show a small increase in OSL sensitivity downstream, mainly due to a decreasing fraction of "dim" grains. The quartz grains from coastal sands present very high sensitivity and variability, which is consistent with their long sedimentary history. The high variability of the OSL sensitivity of quartz from coastal sands is attributed more to the mixture of grains with distinct sedimentary histories than to the provenance from many types of source rocks. The temperature of crystallization and the number of cycles of burial and solar exposure are suggested as the main natural factors controlling the OSL sensitivity of quartz grains. The increase in OSL sensitivity due to cycles of erosion and deposition surpasses the sensitivity inherited from the source rock, with this increase being mainly related to the sensitization of fast OSL components. The discrimination of grains with different sedimentary histories through their OSL sensitivities can allow the development of quantitative provenance methods based on quartz. (C) 2010 Elsevier B.V. All rights reserved. C1 [Sawakuchi, A. O.; Hyppolito, T.; Guedes, C. C. F.] Univ Sao Paulo, Inst Geociencias, BR-05508080 Sao Paulo, Brazil. [Blair, M. W.] Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA. [DeWitt, R.] Oklahoma State Univ, Dept Phys, Inst Radiat Dosimetry, Stillwater, OK 74074 USA. [Faleiros, F. M.] CPRM Serv Geol Brasil, BR-01304010 Sao Paulo, Brazil. RP Sawakuchi, AO (reprint author), Univ Sao Paulo, Inst Geociencias, Rua Lago 562, BR-05508080 Sao Paulo, Brazil. EM andreos@usp.br RI Faleiros, Frederico/F-6138-2010; OI Faleiros, Frederico/0000-0003-2199-8116; DeWitt, Regina/0000-0003-2876-5489; Guedes, Carlos Conforti Ferreira/0000-0001-8816-9174 FU Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2007/54889-8] FX This study was funded by Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP, project: 2007/54889-8). We wish to thank Tim Pietsch, Frank Preusser and the editor Richard Roberts for the thoughtful suggestions on the manuscript. We are also grateful to Sergio Williams de Oliveira Rodrigues and Diego Froes e Souza for help during fieldtrips. Rodolfo Carlos Mineli is acknowledged for the assistance during sample preparation as well as in the field. NR 43 TC 28 Z9 29 U1 1 U2 11 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1871-1014 J9 QUAT GEOCHRONOL JI Quat. Geochronol. PD APR PY 2011 VL 6 IS 2 BP 261 EP 272 DI 10.1016/j.quageo.2010.11.002 PG 12 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA 743LI UT WOS:000289019400010 ER PT J AU Zhu, WL Gaetani, GA Fusseis, F Montesi, LGJ De Carlo, F AF Zhu, Wenlu Gaetani, Glenn A. Fusseis, Florian Montesi, Laurent G. J. De Carlo, Francesco TI Microtomography of Partially Molten Rocks: Three-Dimensional Melt Distribution in Mantle Peridotite SO SCIENCE LA English DT Article ID OCEAN-RIDGE BASALT; EAST PACIFIC RISE; MIDOCEAN RIDGES; BENEATH; EXTRACTION; PERMEABILITY; TRANSPORT; FLOW; CONSEQUENCES; SEGREGATION AB The permeability of the upper mantle controls melt segregation beneath spreading centers. Reconciling contradictory geochemical and geophysical observations at ocean ridges requires a better understanding of transport properties in partially molten rocks. Using x-ray synchrotron microtomography, we obtained three-dimensional data on melt distribution for mantle peridotite with various melt fractions. At melt fractions as low as 0.02, triple junctions along grain edges dominated the melt network; there was no evidence of an abrupt change in the fundamental character of melt extraction as melt fraction increased to 0.2. The porosity of the partially molten region beneath ocean ridges is therefore controlled by a balance between viscous compaction and melting rate, not by a change in melt topology. C1 [Zhu, Wenlu; Montesi, Laurent G. J.] Univ Maryland, Dept Geog, College Pk, MD 20742 USA. [Gaetani, Glenn A.] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA. [Fusseis, Florian] Univ Western Australia, Western Australian Geothermal Ctr Excellence, Crawley, WA, Australia. [De Carlo, Francesco] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Zhu, WL (reprint author), Univ Maryland, Dept Geog, College Pk, MD 20742 USA. EM wzhu@umd.edu RI Montesi, Laurent/C-5216-2009; Gaetani, Glenn/B-8809-2015; Fusseis, Florian/M-5321-2016 OI Montesi, Laurent/0000-0002-3519-1412; Gaetani, Glenn/0000-0002-6026-2534; Fusseis, Florian/0000-0002-3104-8109 FU NSF [EAR 0753505, OCE 0937277]; Western Australian State Government; Commonwealth of Australia; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work is supported by NSF-EAR 0753505 (W.Z. and G. A. G.) and NSF-OCE 0937277 (L.G.J.M.). F. F. was supported by the Western Australian State Government through the Premier's Fellowship Program and the Australian Synchrotron Research Program, funded by the Commonwealth of Australia under the Major National Research Facilities Program. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357. We thank X. Xiao and J. Liu for their assistance. We furthermore acknowledge the Centre for Microscopy, Characterisation and Analysis for use of an electron microprobe and iVEC for use of their data storage and visualization facilities. NR 29 TC 56 Z9 59 U1 3 U2 43 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD APR 1 PY 2011 VL 332 IS 6025 BP 88 EP 91 DI 10.1126/science.1202221 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 743EJ UT WOS:000289000000043 PM 21454786 ER PT J AU Vorotnikov, VS Smith, CW Farrugia, CJ Meredith, CJ Hu, QA Szabo, A Skoug, RM Cohen, CMS Davis, AJ Yumoto, K AF Vorotnikov, Vasiliy S. Smith, Charles W. Farrugia, Charles J. Meredith, Calum J. Hu, Qiang Szabo, Adam Skoug, Ruth M. Cohen, Christina M. S. Davis, Andrew J. Yumoto, Kiyohumi TI Use of single-component wind speed in Rankine-Hugoniot analysis of interplanetary shocks SO SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS LA English DT Article ID SOLAR-WIND AB We have extended and deployed a routine designed to run independently on the Web providing real-time analysis of interplanetary shock observations from L(1). The program accesses real-time magnetic field, solar wind speed, and proton density data from the Advanced Composition Explorer (ACE) spacecraft, searches for interplanetary shocks, analyzes shocks according to the Rankine-Hugoniot (R-H) jump conditions, and provides shock solutions on the Web for space weather applications. Because the ACE real-time data stream contains the wind speed but not the three-component wind velocity, we describe modifications to the R-H analysis that use the scalar wind speed and show successful results for analyses of strong interplanetary shocks at 1 AU. We compare the three-component and one-component solutions and find the greatest disagreement between the two rests in estimations of the shock speed rather than the shock propagation direction. Uncertainties in magnetic quantities such as magnetic compression and shock normal angle relative to the upstream magnetic field show large uncertainties in both analyses when performed using an automated routine whereas analyses of the shock normal alone do not. The automated data point selection scheme, together with the natural variability of the magnetic field, is inferred to be a problem in a few instances for this and other reasons. For a broad range of interplanetary shocks that arrive 30 to 60 min after passing L(1), this method will provide 15 to 45 min of advanced warning prior to the shock's collision with the Earth's magnetopause. The shock, in turn, provides advance warning of the approaching driver gas. C1 [Vorotnikov, Vasiliy S.] Univ New Hampshire, Dept Chem Engn, Durham, NH 03824 USA. [Cohen, Christina M. S.; Davis, Andrew J.] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA. [Smith, Charles W.; Farrugia, Charles J.] Univ New Hampshire, Ctr Space Sci, Inst Study Earth Oceans & Space, Dept Phys, Durham, NH 03824 USA. [Hu, Qiang] Univ Alabama, CSPAR, Huntsville, AL 35805 USA. [Meredith, Calum J.] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England. [Skoug, Ruth M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Szabo, Adam] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Yumoto, Kiyohumi] Kyushu Univ, Space Environm Res Ctr, Fukuoka 8128581, Japan. RP Vorotnikov, VS (reprint author), Univ New Hampshire, Dept Chem Engn, Durham, NH 03824 USA. EM vasya@udel.edu; charles.smith@unh.edu; charlie.farrugia@unh.edu; cjm49@leicester.ac.uk; qh0001@uah.edu; adam.szabo@nasa.gov; rskoug@lanl.gov; cohen@srl.caltech.edu; ad@srl.caltech.edu; yumoto@serc.kyushu-u.ac.jp FU NASA [NNG04GMO5G, NAG5-12492]; Caltech [44A-1062037]; U.S. Department of Energy FX Funding for this work was provided by NASA grants NNG04GMO5G and NAG5-12492 and Caltech subcontract 44A-1062037 in support of the ACE/MAG experiment. Support at LANL was provided under the auspices of the U.S. Department of Energy, with financial support from the NASA ACE program. We thank the Solar-Terrestrial Laboratory at Nagoya University for providing the 210MM magnetic observations and the IMAGE ground-based magnetometer team for providing data used in this study. V. S. V. was an undergraduate senior at UNH pursuing a chemical engineering major in renewable energy when this work was performed. He is now a graduate student in the Center for Renewable Energy at the University of Delaware. C.J.M. was a visiting undergraduate at UNH at the time this work was completed. NR 14 TC 5 Z9 5 U1 0 U2 5 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 1542-7390 J9 SPACE WEATHER JI Space Weather PD APR 1 PY 2011 VL 9 AR S04001 DI 10.1029/2010SW000631 PG 9 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA 744KS UT WOS:000289093900001 ER PT J AU Hao, SQ Rankin, RB Johnson, JK Sholl, DS AF Hao, Shiqiang Rankin, Rees B. Johnson, J. Karl Sholl, David S. TI Surface reactions of AsH3, H2Se, and H2S on the Zn2TiO4(010) surface SO SURFACE SCIENCE LA English DT Article DE Density functional calculations; Hydrogen sulfide; Surface chemical reaction ID COAL-GASIFICATION; TECHNOLOGIES AB Removal of toxic species such as As. Se. and S is critical to the successful implementation of high efficiency Integrated Gasification Combined Cycle (IGCC) processes for coal utilization. In this work we study the initial low-coverage surface reactions of AsH3, H2Se and H2S with a regenerable sorbent, zinc orthotitanate (Zn2TiO4), using first principles density functional theory. AsH3 adsorbs more preferentially on oxygen-rich (010) surfaces, while H2Se and H2S are more favorably bound to metal-rich (010) surfaces. We calculated the dissociation pathways and rates for each adsorbed species, finding that dehydrogenation of AsH3, H2Se, and H2S should be facile on these surfaces at the high temperatures relevant for IGCC processes. (C) 2011 Elsevier B.V. All rights reserved. C1 [Hao, Shiqiang; Sholl, David S.] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA. [Rankin, Rees B.; Johnson, J. Karl] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA. [Rankin, Rees B.; Johnson, J. Karl] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RP Sholl, DS (reprint author), Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA. EM david.sholl@chbe.gatech.edu RI Johnson, Karl/E-9733-2013 OI Johnson, Karl/0000-0002-3608-8003 FU NETL [DE-AC26-04NT41817]; Subtask [606.01.04]; Georgia Tech Strategic Energy Initiative Seed Fund program FX This work was initiated with financial support from NETL with contract DE-AC26-04NT41817, Subtask 606.01.04. SH and DSS also acknowledge support from the Georgia Tech Strategic Energy Initiative Seed Fund program. NR 14 TC 5 Z9 5 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD APR PY 2011 VL 605 IS 7-8 BP 818 EP 823 DI 10.1016/j.susc.2011.01.025 PG 6 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA 741CR UT WOS:000288841200025 ER PT J AU Zhang, Y Liu, BZ Gable, CW AF Zhang, Ye Liu, Baozhong Gable, Carl W. TI Homogenization of Hydraulic Conductivity for Hierarchical Sedimentary Deposits at Multiple Scales SO TRANSPORT IN POROUS MEDIA LA English DT Article DE Hydraulic conductivity; Heterogeneity; Upscaling; Equivalent conductivity; Sedimentary hierarchy ID HETEROGENEOUS POROUS-MEDIA; EXPERIMENTAL STRATIGRAPHY; FLOW; PERMEABILITY; CONNECTIVITY AB Based on a three-dimensional heterogeneous aquifer model exhibiting non-stationary, statistically anisotropic correlation, three hydrostratigraphic models (HSMs) are created within a sedimentary hierarchy. A geostatistical analysis of natural log conductivity (lnK) is conducted for the units of the HSMs. Hydraulic conductivity is then upscaled using numerical and analytical methods. Increasing lnK variances are evaluated. Results suggest that for the aquifer model tested: (1) the numerical method is capable of upscaling irregular domains with reasonable accuracy for a lnK variance up to 7.0. (2) Accuracy of the upscaled equivalent conductivities (K*) and associated performance of the HSMs are sensitive to homogenization level, heterogeneity variance, and boundary condition. Variance is found to be the most significant factor impacting the accuracy of the HSMs. (3) Diagonal tensor appears a good approximation for the full-tensor K*. (4) For the HSM units, when the variance is low (less than 1.0), all analytical methods are nearly equally accurate; however, when variance becomes higher, analytical methods generally are less accurate. C1 [Zhang, Ye; Liu, Baozhong] Univ Wyoming, Laramie, WY 82071 USA. [Gable, Carl W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Zhang, Y (reprint author), Univ Wyoming, 1000 Univ Ave, Laramie, WY 82071 USA. EM yzhang9@uwyo.edu OI Gable, Carl/0000-0001-7063-0815 FU NSF [EAR-0838250] FX Funding for this study was provided by a NSF grant EAR-0838250 awarded to the first author. We acknowledge the insightful comments of the anonymous reviewers. NR 25 TC 6 Z9 7 U1 1 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0169-3913 J9 TRANSPORT POROUS MED JI Transp. Porous Media PD APR PY 2011 VL 87 IS 3 BP 717 EP 737 DI 10.1007/s11242-010-9711-8 PG 21 WC Engineering, Chemical SC Engineering GA 739HQ UT WOS:000288706000005 ER PT J AU Radetic, T Minor, AM Dahmen, U AF Radetic, T. Minor, A. M. Dahmen, U. TI Capillarity-driven migration of a thin Ge wedge in contact with a bicrystalline Au film SO ACTA MATERIALIA LA English DT Article DE Dewetting; Capillarity; Bicrystalline substrate; Wedge migration; TEM characterization ID SCANNING-TUNNELING-MICROSCOPY; GRAIN-GROWTH; SURFACE-DIFFUSION; EQUILIBRIUM SHAPE; TEM OBSERVATIONS; ENERGY; SI; PARTICLES; SUBSTRATE; SI(001) AB We have investigated the retraction of a single-crystalline Ge wedge in epitaxial contact with a bicrystalline Au film using in situ electron microscopy. The rate of retraction was close to that predicted for capillarity-driven surface diffusion, following kinetics proportional to t(n), with n = 0.22-0.35, but crystal anisotropy caused migration to be significantly faster along < 1 0 0 > directions than along < 1 1 0 >. The bicrystalline Au substrate was not inert, but underwent abnormal grain growth in the area swept by the receding Ge wedge. Cross-sections made from plan-view transmission electron microscopy samples revealed that this was related to ridge formation during the retraction process. In situ observations of the process in an inclined orientation showed direct evidence of substrate grain boundaries being dragged by the receding Ge wedge. The results can be understood in the framework of capillarity models for isotropic solid-state wedges and reactive wetting in high-temperature liquid solid experiments. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Radetic, T.; Minor, A. M.; Dahmen, U.] Univ Calif Berkeley, Lawrence Berkeley Lab, NCEM, Berkeley, CA 94720 USA. [Minor, A. M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Dahmen, U (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, NCEM, MS 72, Berkeley, CA 94720 USA. EM UDahmen@LBL.gov FU Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231] FX This work was performed at the National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, and was supported by the Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. NR 32 TC 1 Z9 1 U1 2 U2 12 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 APR PY 2011 VL 59 IS 6 BP 2481 EP 2490 DI 10.1016/j.actamat.2010.12.051 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 737KU UT WOS:000288568500023 ER PT J AU Sizova, MV Izquierdo, JA Panikov, NS Lynd, LR AF Sizova, M. V. Izquierdo, J. A. Panikov, N. S. Lynd, L. R. TI Cellulose- and Xylan-Degrading Thermophilic Anaerobic Bacteria from Biocompost SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID SEA-ICE BACTERIA; CLOSTRIDIUM-THERMOCELLUM; SP-NOV.; CALDICELLULOSIRUPTOR-SACCHAROLYTICUS; METHANOGENIC BIOREACTOR; STERCORARIUM; DEGRADATION; HYDROLYSIS; COMMUNITY; ENZYMES AB Nine thermophilic cellulolytic clostridial isolates and four other noncellulolytic bacterial isolates were isolated from self-heated biocompost via preliminary enrichment culture on microcrystalline cellulose. All cellulolytic isolates grew vigorously on cellulose, with the formation of either ethanol and acetate or acetate and formate as principal fermentation products as well as lactate and glycerol as minor products. In addition, two out of nine cellulolytic strains were able to utilize xylan and pretreated wood with roughly the same efficiency as for cellulose. The major products of xylan fermentation were acetate and formate, with minor contributions of lactate and ethanol. Phylogenetic analyses of 16S rRNA and glycosyl hydrolase family 48 (GH48) gene sequences revealed that two xylan-utilizing isolates were related to a Clostridium clariflavum strain and represent a distinct novel branch within the GH48 family. Both isolates possessed high cellulase and xylanase activity induced independently by either cellulose or xylan. Enzymatic activity decayed after growth cessation, with more-rapid disappearance of cellulase activity than of xylanase activity. A mixture of xylan and cellulose was utilized simultaneously, with a significant synergistic effect observed as a reduction of lag phase in cellulose degradation. C1 [Sizova, M. V.; Izquierdo, J. A.; Panikov, N. S.; Lynd, L. R.] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA. [Sizova, M. V.; Izquierdo, J. A.; Panikov, N. S.; Lynd, L. R.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Sizova, M. V.; Panikov, N. S.] Northeastern Univ, Dept Biol, Boston, MA 02115 USA. RP Lynd, LR (reprint author), Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA. EM Lee.R.Lynd@dartmouth.edu RI Lynd, Lee/N-1260-2013; OI Lynd, Lee/0000-0002-5642-668X; Izquierdo, Javier/0000-0002-5143-3450 FU BioEnergy Science Center (BESC); Office of Biological and Environmental Research in the DOE Office of Science; Mascoma Corporation 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, and by Mascoma Corporation. NR 46 TC 51 Z9 53 U1 3 U2 39 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 APR PY 2011 VL 77 IS 7 BP 2282 EP 2291 DI 10.1128/AEM.01219-10 PG 10 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 741HT UT WOS:000288855500011 PM 21317267 ER PT J AU Lee, JK Jung, HS Wang, YQ Theodore, ND Alford, TL Nastasi, M AF Lee, Jung-Kun Jung, Hyun Suk Wang, Yongqiang Theodore, N. David Alford, Terry L. Nastasi, Michael TI Ion-irradiation enhanced epitaxial growth of sol-gel TiO2 films SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID THIN-FILMS; ELECTRICAL-PROPERTIES; CRYSTALLIZATION; AMORPHIZATION; SUBSTRATE; KINETICS; SILICON; RECRYSTALLIZATION; COATINGS; SRTIO3 AB We report the epitaxial growth of sol-gel TiO2 films by using ion-irradiation enhanced synthesis. Our present study shows that the ion-beam process can provide highly crystalline TiO2 even at 350A degrees C. Nuclear energy deposition at amorphous/crystalline interface plays a dominant role in the epitaxial growth of the films at the reduced temperature via a defect-migration mechanism. In addition, the ion irradiation allows for increasing the film density by balancing the crystallization rate and the escape rate of organic components. C1 [Lee, Jung-Kun] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA. [Jung, Hyun Suk] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea. [Wang, Yongqiang; Nastasi, Michael] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Theodore, N. David] Freescale Semicond Inc, Silicon Technol Solut, Tempe, AZ 85284 USA. [Alford, Terry L.] Arizona State Univ, Sch Mech Aerosp Chem & Mat Engn, Tempe, AZ 85287 USA. RP Lee, JK (reprint author), Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA. EM jul37@pitt.edu RI Jung, Hyun Suk/D-4745-2011; Jung, Hyun Suk/H-3659-2015 FU National Science Foundation [DMR-0847319]; Los Alamos National Laboratory [DE-AC52-06NA25396]; Sandia National Laboratory [DE-AC04-94AL85000] FX This work was supported by National Science Foundation (Grant No. DMR-0847319). A part of the research was performed at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility at Los Alamos National Laboratory (Contract DE-AC52-06NA25396) and Sandia National Laboratory (Contract DE-AC04-94AL85000). NR 27 TC 2 Z9 2 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 APR PY 2011 VL 103 IS 1 BP 179 EP 184 DI 10.1007/s00339-010-5985-5 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 739WT UT WOS:000288752800023 ER PT J AU Gruber, D Kruhler, T Foley, S Nardini, M Burlon, D Rau, A Bissaldi, E von Kienlin, A McBreen, S Greiner, J Bhat, PN Briggs, MS Burgess, JM Chaplin, VL Connaughton, V Diehl, R Fishman, GJ Gibby, MH Giles, MM Goldstein, A Guiriec, S van der Horst, AJ Kippen, RM Kouveliotou, C Lin, L Meegan, CA Paciesas, WS Preece, RD Tierney, D Wilson-Hodge, C AF Gruber, D. Kruehler, T. Foley, S. Nardini, M. Burlon, D. Rau, A. Bissaldi, E. von Kienlin, A. McBreen, S. Greiner, J. Bhat, P. N. Briggs, M. S. Burgess, J. M. Chaplin, V. L. Connaughton, V. Diehl, R. Fishman, G. J. Gibby, M. H. Giles, M. M. Goldstein, A. Guiriec, S. van der Horst, A. J. Kippen, R. M. Kouveliotou, C. Lin, L. Meegan, C. A. Paciesas, W. S. Preece, R. D. Tierney, D. Wilson-Hodge, C. TI Fermi/GBM observations of the ultra-long GRB 091024 A burst with an optical flash SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE gamma-ray burst: general; gamma-ray burst: individual: GRB 091024 ID GAMMA-RAY-BURSTS; PROBE WMAP OBSERVATIONS; LAG-LUMINOSITY RELATION; LIGHT CURVES; PEAK LUMINOSITY; COSMOLOGICAL PARAMETERS; SPECTRAL EVOLUTION; BATSE OBSERVATIONS; AFTERGLOW; BRIGHT AB Aims. In this paper we examine gamma-ray and optical data of GRB 091024, a gamma-ray burst (GRB) with an extremely long duration of T-90 approximate to 1020 s, as observed with the Fermi Gamma-ray Burst Monitor (GBM). Methods. We present spectral analysis of all three distinct emission episodes using data from Fermi/GBM. Because of the long nature of this event, many ground-based optical telescopes slewed to its location within a few minutes and thus were able to observe the GRB during its active period. We compare the optical and gamma-ray light curves. Furthermore, we estimate a lower limit on the bulk Lorentz factor from the variability and spectrum of the GBM light curve and compare it with that obtained from the peak time of the forward shock of the optical afterglow. Results. From the spectral analysis we note that, despite its unusually long duration, this burst is similar to other long GRBs, i.e. there is spectral evolution (both the peak energy and the spectral index vary with time) and spectral lags are measured. We find that the optical light curve is highly anti-correlated to the prompt gamma-ray emission, with the optical emission reaching the maximum during an epoch of quiescence in the prompt emission. We interpret this behavior as the reverse shock (optical flash), expected in the internal-external shock model of GRB emission but observed only in a handful of GRBs so far. The lower limit on the initial Lorentz factor deduced from the variability time scale (Gamma(min) = 195(-110)(+ 90)) is consistent within the error to the one obtained using the peak time of the forward shock (Gamma(0) = 120) and is also consistent with Lorentz factors of other long GRBs. C1 [Gruber, D.; Kruehler, T.; Foley, S.; Nardini, M.; Burlon, D.; Rau, A.; Bissaldi, E.; von Kienlin, A.; Greiner, J.; Diehl, R.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany. [Kruehler, T.] Tech Univ Munich, D-85748 Garching, Germany. [McBreen, S.; Tierney, D.] Univ Coll Dublin, Dublin 4, Ireland. [Bhat, P. N.; Briggs, M. S.; Burgess, J. M.; Chaplin, V. L.; Connaughton, V.; Goldstein, A.; Guiriec, S.; van der Horst, A. J.; Paciesas, W. S.; Preece, R. D.] Univ Alabama, NSSTC, Huntsville, AL 35805 USA. [Fishman, G. J.; Kouveliotou, C.; Wilson-Hodge, C.] NASA, George C Marshall Space Flight Ctr, Space Sci Off, Huntsville, AL 35812 USA. [Gibby, M. H.; Giles, M. M.] Jacobs Technol Inc, Huntsville, AL USA. [Kippen, R. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Meegan, C. A.] Univ Space Res Assoc, NSSTC, Huntsville, AL 35805 USA. RP Gruber, D (reprint author), Max Planck Inst Extraterr Phys, Giessenbachstr,Postfach 1312, D-85748 Garching, Germany. EM dgruber@mpe.mpg.de RI Bissaldi, Elisabetta/K-7911-2016; OI Bissaldi, Elisabetta/0000-0001-9935-8106; Preece, Robert/0000-0003-1626-7335; Burgess, James/0000-0003-3345-9515; Kruehler, Thomas/0000-0002-8682-2384 FU German Bundesministerium fur Wirtschaft und Technologie (BMWi) via the Deutsches Zentrum fur Luft- und Raumfahrt (DLR) [50 QV 0301, 50 OG 0502]; Irish Research Council for Science, Engineering and Technology; Marie Curie Actions FX The GBM project is supported by the German Bundesministerium fur Wirtschaft und Technologie (BMWi) via the Deutsches Zentrum fur Luft- und Raumfahrt (DLR) under the contract numbers 50 QV 0301 and 50 OG 0502. S.F. acknowledges the support of the Irish Research Council for Science, Engineering and Technology, cofunded by Marie Curie Actions under FP7. NR 65 TC 25 Z9 25 U1 0 U2 4 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 1432-0746 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD APR PY 2011 VL 528 AR A15 DI 10.1051/0004-6361/201015891 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 737BD UT WOS:000288541600041 ER PT J AU West, MJ Jordan, A Blakeslee, JP Cote, P Gregg, MD Takamiya, M Marzke, RO AF West, M. J. Jordan, A. Blakeslee, J. P. Cote, P. Gregg, M. D. Takamiya, M. Marzke, R. O. TI The globular cluster systems of Abell 1185 SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE galaxies: elliptical and lenticular, cD; galaxies: formation; galaxies: interactions; globular clusters: general; galaxies: clusters: individual: Abell 1185 ID EARLY-TYPE GALAXIES; TELESCOPE ADVANCED CAMERA; COLOR-MAGNITUDE RELATION; VIRGO-CLUSTER; LUMINOSITY FUNCTION; COMA CLUSTER; INTRACLUSTER GLOBULARS; STELLAR POPULATIONS; FORNAX CLUSTER; DIFFUSE LIGHT AB We examine the properties of a previously discovered population of globular clusters in the heart of the rich galaxy cluster Abell 1185 that might be intergalactic in nature. Deep images obtained with the Advanced Camera for Surveys (ACS) aboard Hubble Space Telescope (HST) confirm the presence of similar to 1300 globular clusters brighter than I-F814W similar or equal to 27.3 mag in a field devoid of any large galaxies. The luminosities and colors of these objects are found to be similar to those of metal-poor globular clusters observed in many galaxies to date. Although a significant fraction of the detected globular clusters undoubtedly reside in the outer halos of galaxies adjacent to this field, detailed modeling of their distribution suggests that the majority of these objects are likely to be intergalactic, in the sense that they are not gravitationally bound to any individual galaxy. We conclude that the true nature and origin of the globular cluster population in the core of A1185 - galactic residents or intergalactic wanderers - remains uncertain, and suggest how future observation could resolve this ambiguity. C1 [West, M. J.] European So Observ, Santiago, Chile. [Jordan, A.] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Santiago 22, Chile. [Blakeslee, J. P.; Cote, P.] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V9E 2E7, Canada. [Gregg, M. D.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. [Gregg, M. D.] Univ Calif Davis, Dept Phys, Davis, CA USA. [Takamiya, M.] Univ Hawaii, Dept Phys & Astron, Hilo, HI 96720 USA. [Marzke, R. O.] San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA. RP West, MJ (reprint author), European So Observ, Alonso de Cordova 3107, Santiago, Chile. EM mwest@eso.org; ajordan@astro.puc.cl; john.blakeslee@nrc-cnrc.gc.ca; patrick.cote@nrc-cnrc.gc.ca; gregg@igpp.ucllnl.org; mtakamiya@hawaii.edu; marzke@stars.sfsu.edu OI Jordan, Andres/0000-0002-5389-3944; Blakeslee, John/0000-0002-5213-3548 FU NASA through Space Telescope Science Institute [HST-GO-9488]; NASA [NAS 5-26555]; NSF [AST 02-05960]; Fondecyt [1095213]; US Department of Energy by Lawrence Livermore National Laboratory [W-7405-Eng-48, DE-AC52-07NA27344] FX We thank Stefano Andreon and Jean-Charles Cuillandre for kindly providing their reduced CFH12k images of A1185, Sidney van den Bergh for enlightening discussions, and the anonymous referee for suggestions that helped to improve the paper. Support for programme HST-GO-9488 was provided by NASA through a grant from the Space Telescope Science Institute which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. This research made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. M.J.W. thanks the Herzberg Institute of Astrophysics for its hospitality during much of this work and acknowledges additional support from NSF grant AST 02-05960. A.J. acknowledges support from Fondecyt project 1095213, Anillo ACT86, BASAL CATA PFB-06, FONDAP CFA 15010003 and MIDEPLAN ICM Nucleus P07-021-F. Part of the work reported here was done at the Institute of Geophysics and Planetary Physics, under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344. NR 89 TC 12 Z9 12 U1 0 U2 2 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 APR PY 2011 VL 528 AR A115 DI 10.1051/0004-6361/201015939 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 737BD UT WOS:000288541600055 ER PT J AU Aspden, AJ Bell, JB Woosley, SE AF Aspden, A. J. Bell, J. B. Woosley, S. E. TI TURBULENT OXYGEN FLAMES IN TYPE Ia SUPERNOVAE SO ASTROPHYSICAL JOURNAL LA English DT Article DE hydrodynamics; methods: numerical; nuclear reactions, nucleosynthesis, abundances; supernovae: general; turbulence; white dwarfs ID DELAYED DETONATION; WHITE-DWARFS; EXPLOSION AB In previous studies, we examined turbulence-flame interactions in carbon-burning thermonuclear flames in Type Ia supernovae. In this study, we consider turbulence-flame interactions in the trailing oxygen flames. The two aims of the paper are to examine the response of the inductive oxygen flame to intense levels of turbulence, and to explore the possibility of transition to detonation in the oxygen flame. Scaling arguments analogous to the carbon flames are presented and then compared against three-dimensional simulations for a range of Damkohler numbers (Da(16)) at a fixed Karlovitz number. The simulations suggest that turbulence does not significantly affect the oxygen flame when Da(16) < 1, and the flame burns inductively some distance behind the carbon flame. However, for Da(16) > 1, turbulence enhances heat transfer and drives the propagation of a flame that is narrower than the corresponding inductive flame would be. Furthermore, burning under these conditions appears to occur as part of a combined carbon-oxygen turbulent flame with complex compound structure. The simulations do not appear to support the possibility of a transition to detonation in the oxygen flame, but do not preclude it either. C1 [Aspden, A. J.; Bell, J. B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Woosley, S. E.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA. RP Aspden, AJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,MS 50A-1148, Berkeley, CA 94720 USA. RI Aspden, Andy/A-7391-2017 OI Aspden, Andy/0000-0002-2970-4824 FU U.S. Department of Energy [DE-AC02-05CH11231]; NASA [NNX09AK36G]; DOE [DE-FC02-06ER41438] FX A.J.A. and J.B.B. were supported by the Applied Mathematics Research Program of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. At UCSC this research has been supported by the NASA Theory Program NNX09AK36G and the DOE SciDAC Program (DE-FC02-06ER41438). The computations presented here were performed on the ATLAS Linux Cluster at LLNL as part of a Grand Challenge Project. NR 24 TC 5 Z9 5 U1 0 U2 4 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 APR 1 PY 2011 VL 730 IS 2 AR 144 DI 10.1088/0004-637X/730/2/144 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900084 ER PT J AU Camporeale, E Burgess, D AF Camporeale, Enrico Burgess, David TI THE DISSIPATION OF SOLAR WIND TURBULENT FLUCTUATIONS AT ELECTRON SCALES SO ASTROPHYSICAL JOURNAL LA English DT Article DE plasmas; solar wind; turbulence; waves ID MAGNETIC FLUCTUATIONS; ENERGY CASCADE; WAVES; RANGE; DYNAMICS; PLASMA AB We present two-dimensional fully kinetic particle-in-cell simulations of decaying electromagnetic fluctuations. The computational box is such that wavelengths ranging from electron to ion gyroradii are resolved. The parameters used are realistic for the solar wind, and the ion-to-electron mass ratio is physical. The dissipation of turbulent fluctuations at small scales is thought to be a crucial mechanism for solar wind acceleration and coronal heating. The computational results suggest that a power-law cascade of magnetic fluctuations could be sustained up to scales of the electron Larmor radius and smaller. We analyze the simulation results in light of the Vlasov linear theory, and we comment on the particle heating. The dispersion curves of lightly damped modes in this regime suggest that a linear mechanism could be responsible for the observed steepening of power spectra at electron scales, but a straightforward identification of turbulent fluctuations as an ensemble of linear modes is not possible. C1 [Camporeale, Enrico; Burgess, David] Queen Mary Univ London, Sch Math Sci, London E1 4NS, England. RP Camporeale, E (reprint author), Los Alamos Natl Lab, Div Theoret, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA. FU STFC [ST/H002731/1] FX This work was supported by STFC grant ST/H002731/1. NR 27 TC 30 Z9 30 U1 0 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2011 VL 730 IS 2 AR 114 DI 10.1088/0004-637X/730/2/114 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900054 ER PT J AU Capak, P Mobasher, B Scoville, NZ McCracken, H Ilbert, O Salvato, M Menendez-Delmestre, K Aussel, H Carilli, C Civano, F Elvis, M Giavalisco, M Jullo, E Kartaltepe, J Leauthaud, A Koekemoer, AM Kneib, JP LeFloch, E Sanders, DB Schinnerer, E Shioya, Y Shopbell, P Tanaguchi, Y Thompson, D Willott, CJ AF Capak, P. Mobasher, B. Scoville, N. Z. McCracken, H. Ilbert, O. Salvato, M. Menendez-Delmestre, K. Aussel, H. Carilli, C. Civano, F. Elvis, M. Giavalisco, M. Jullo, E. Kartaltepe, J. Leauthaud, A. Koekemoer, A. M. Kneib, J. -P. LeFloch, E. Sanders, D. B. Schinnerer, E. Shioya, Y. Shopbell, P. Tanaguchi, Y. Thompson, D. Willott, C. J. TI SPECTROSCOPY OF LUMINOUS z > 7 GALAXY CANDIDATES AND SOURCES OF CONTAMINATION IN z > 7 GALAXY SEARCHES SO ASTROPHYSICAL JOURNAL LA English DT Article DE galaxies: evolution; galaxies: formation; galaxies: high-redshift ID LYMAN-BREAK GALAXIES; ULTRA-DEEP-FIELD; STELLAR MASS DENSITY; LY-ALPHA EMITTERS; SIMILAR-TO 7-10; STAR-FORMING GALAXIES; KECK-II-TELESCOPE; HIGH-REDSHIFT; COSMOS FIELD; DARK-MATTER AB We present three bright z(+)-dropout candidates selected from deep near-infrared (NIR) imaging of the COSMOS 2 deg(2) field. All three objects match the 0.8-8 mu m colors of other published z > 7 candidates but are 3 mag brighter, facilitating further study. Deep spectroscopy of two of the candidates covering 0.64-1.02 mu m with Keck-DEIMOS and all three covering 0.94-1.10 mu m and 1.52-1.80 mu m with Keck-NIRSPEC detects weak spectral features tentatively identified as Ly alpha at z = 6.95 and z = 7.69 in two of the objects. The third object is placed at z similar to 1.6 based on a 24 mu m and weak optical detection. A comparison with the spectral energy distributions of known z < 7 galaxies, including objects with strong spectral lines, large extinction, and large systematic uncertainties in the photometry, yields no objects with similar colors. However, the lambda > 1 mu m properties of all three objects can be matched to optically detected sources with photometric redshifts at z similar to 1.8, so the non-detection in the i(+) and z(+) bands is the primary factor which favors a z > 7 solution. If any of these objects are at z similar to 7, the bright end of the luminosity function is significantly higher at z > 7 than suggested by previous studies, but consistent within the statistical uncertainty and the dark matter halo distribution. If these objects are at low redshift, the Lyman break selection must be contaminated by a previously unknown population of low-redshift objects with very strong breaks in their broadband spectral energy distributions and blue NIR colors. The implications of this result on luminosity function evolution at high redshift are discussed. We show that the primary limitation of z > 7 galaxy searches with broad filters is the depth of the available optical data. C1 [Capak, P.; Jullo, E.] Spitzer Sci Ctr, Pasadena, CA 91125 USA. [Capak, P.; Scoville, N. Z.; Salvato, M.; Shopbell, P.] CALTECH, Dept Astron, Pasadena, CA 91125 USA. [Mobasher, B.] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA. [McCracken, H.] Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France. [Ilbert, O.] Astrophys Lab, F-13376 Marseille 12, France. [Menendez-Delmestre, K.] Carnegie Observ, Pasadena, CA 91101 USA. [Aussel, H.; LeFloch, E.] Univ Paris 07, CNRS, AIM, UMR CEA,UMR 7158, F-91191 Gif Sur Yvette, France. [Carilli, C.] Natl Radio Astron Observ, Socorro, NM 87801 USA. [Civano, F.; Elvis, M.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Giavalisco, M.] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA. [Kartaltepe, J.; Sanders, D. B.] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA. [Leauthaud, A.] Univ Calif Berkeley, LBNL, Berkeley, CA 94720 USA. [Leauthaud, A.] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA. [Koekemoer, A. M.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Kneib, J. -P.] Univ Aix Marseille, CNRS, Lab Astrophys Marseille, F-13388 Marseille 13, France. [Schinnerer, E.] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Shioya, Y.; Tanaguchi, Y.] Ehime Univ, Res Ctr Space & Cosm Evolut, Matsuyama, Ehime 7908577, Japan. [Thompson, D.] Univ Arizona, Large Binocular Telescope Observ, Tucson, AZ 85721 USA. [Willott, C. J.] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V9E 2E7, Canada. RP Capak, P (reprint author), Spitzer Sci Ctr, 314-6 Caltech,1201 E Calif Blvd, Pasadena, CA 91125 USA. RI Astrofisica, Inct/H-9455-2013; 7, INCT/H-6207-2013; Kneib, Jean-Paul/A-7919-2015; OI Kneib, Jean-Paul/0000-0002-4616-4989; Schinnerer, Eva/0000-0002-3933-7677; Jullo, Eric/0000-0002-9253-053X; Koekemoer, Anton/0000-0002-6610-2048 FU W. M. Keck Foundation; NASA [NAS5-26555, NAS8-03060, 1407, 1278386, HST-GO-09822]; ESA Member States; Associated Universities, Inc.; German Max-Planck-Society; French CNRS; Spanish National Geographical Institute; Spitzer Science Center; French Agene National de la Recheche [ANR-07-BLAN-0228]; CNES; Programme National Cosmologie et Galaxies FX Based on observations with the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration and made possible by the generous financial support of the W. M. Keck Foundation; the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA; the Canada-France-Hawaii Telescope with WIRCam, a joint project of CFHT, Taiwan, Korea, Canada, France, at the Canada-France-Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institute National des Sciences de l'Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii; the United Kingdom Infrared Telescope operated by the Joint Astronomy Centre on behalf of the Science and Technology Facilities Council of the U.K; the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; the Canada-France-Hawaii Telescope with MegaPrime/MegaCam operated as a joint project by the CFHT Corporation, CEA/DAPNIA, the National Research Council of Canada, the Canadian Astronomy Data Centre, the Centre National de la Recherche Scientifique de France, TERAPIX and the University of Hawaii; the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA Inc., under NASA contract NAS5-26555; the XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA Member States and NASA; the Chandra X-ray Observatory, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of the National Aeronautics Space Administration under contract NAS8-03060; the National Radio Astronomy Observatory which is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.; the 30 m telescope of the Institute for Radioastronomy at Millimeter Wavelengths (IRAM), which is funded by the German Max-Planck-Society, the French CNRS, and the Spanish National Geographical Institute.; The authors recognize and acknowledge the very significant cultural role and reverence that the summit of Mauna Kea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. Support for this work was provided by the Spitzer Science Center which is operated by the Jet Propulsion Laboratory (JPL), California Institute of Technology under NASA contract 1407, NASA through contract 1278386 issued by the JPL and NASA grant HST-GO-09822. This work is based in part on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Support for this work was provided by NASA through an award issued by JPL/Caltech. This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. H.J.M. and J.P.K. acknowledge support from the French Agene National de la Recheche fund ANR-07-BLAN-0228 as well as from CNES and the Programme National Cosmologie et Galaxies. P.C. acknowledges the Keck remote observing staff who allowed him to simultaneously attend the NIRSPEC observations and the birth of his daughter. NR 102 TC 32 Z9 32 U1 0 U2 4 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 APR 1 PY 2011 VL 730 IS 2 AR 68 DI 10.1088/0004-637X/730/2/68 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900008 ER PT J AU Kasliwal, MM Kulkarni, SR Arcavi, I Quimby, RM Ofek, EO Nugent, P Jacobsen, J Gal-Yam, A Green, Y Yaron, O Fox, DB Howell, JL Cenko, SB Kleiser, I Bloom, JS Miller, A Li, WD Filippenko, AV Starr, D Poznanski, D Law, NM Helou, G Frail, DA Neill, JD Forster, K Martin, DC Tendulkar, SP Gehrels, N Kennea, J Sullivan, M Bildsten, L Dekany, R Rahmer, G Hale, D Smith, R Zolkower, J Velur, V Walters, R Henning, J Bui, K McKenna, D Blake, C AF Kasliwal, Mansi M. Kulkarni, Shri R. Arcavi, Iair Quimby, Robert M. Ofek, Eran O. Nugent, Peter Jacobsen, Janet Gal-Yam, Avishay Green, Yoav Yaron, Ofer Fox, Derek B. Howell, Jacob L. Cenko, S. Bradley Kleiser, Io Bloom, Joshua S. Miller, Adam Li, Weidong Filippenko, Alexei V. Starr, Dan Poznanski, Dovi Law, Nicholas M. Helou, George Frail, Dale A. Neill, James D. Forster, Karl Martin, D. Christopher Tendulkar, Shriharsh P. Gehrels, Neil Kennea, Jamie Sullivan, Mark Bildsten, Lars Dekany, Richard Rahmer, Gustavo Hale, David Smith, Roger Zolkower, Jeff Velur, Viswa Walters, Richard Henning, John Bui, Kahnh McKenna, Dan Blake, Cullen TI PTF 10fqs: A LUMINOUS RED NOVA IN THE SPIRAL GALAXY MESSIER 99 SO ASTROPHYSICAL JOURNAL LA English DT Article DE stars: AGB and post-AGB; stars: mass-loss; supernovae: general; supernovae: individual (PTF 10fqs); surveys ID OBSERVATORY SUPERNOVA SEARCH; SN 2008S; OPTICAL TRANSIENT; NEARBY GALAXIES; NGC 300; TELESCOPE; EVOLUTION; EMISSION; SPITZER; PERFORMANCE AB The Palomar Transient Factory (PTF) is systematically charting the optical transient and variable sky. A primary science driver of PTF is building a complete inventory of transients in the local universe (distance less than 200 Mpc). Here, we report the discovery of PTF 10fqs, a transient in the luminosity "gap" between novae and supernovae. Located on a spiral arm of Messier 99, PTF 10fqs has a peak luminosity of M-r = -12.3, red color (g - r = 1.0), and is slowly evolving (decayed by 1 mag in 68 days). It has a spectrum dominated by intermediate-width Ha (approximate to 930 km s(-1)) and narrow calcium emission lines. The explosion signature (the light curve and spectra) is overall similar to that of M85 OT2006-1, SN 2008S, and NGC 300 OT. The origin of these events is shrouded in mystery and controversy (and in some cases, in dust). PTF 10fqs shows some evidence of a broad feature (around 8600 angstrom) that may suggest very large velocities (approximate to 10,000 km s(-1)) in this explosion. Ongoing surveys can be expected to find a few such events per year. Sensitive spectroscopy, infrared monitoring, and statistics (e.g., disk versus bulge) will eventually make it possible for astronomers to unravel the nature of these mysterious explosions. C1 [Kasliwal, Mansi M.; Kulkarni, Shri R.; Quimby, Robert M.; Ofek, Eran O.; Neill, James D.; Forster, Karl; Martin, D. Christopher; Tendulkar, Shriharsh P.] CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA. [Arcavi, Iair; Gal-Yam, Avishay; Green, Yoav; Yaron, Ofer] Weizmann Inst Sci, Benoziyo Ctr Astrophys, Fac Phys, IL-76100 Rehovot, Israel. [Nugent, Peter; Jacobsen, Janet; Poznanski, Dovi] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Fox, Derek B.; Howell, Jacob L.] Penn State Univ, Eberly Coll Sci, University Pk, PA 16802 USA. [Cenko, S. Bradley; Kleiser, Io; Bloom, Joshua S.; Miller, Adam; Li, Weidong; Filippenko, Alexei V.; Starr, Dan; Poznanski, Dovi] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Law, Nicholas M.] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada. [Helou, George] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA. [Frail, Dale A.] Natl Radio Astron Observ, Array Operat Ctr, Socorro, NM 87801 USA. [Gehrels, Neil] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Kennea, Jamie] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Sullivan, Mark] Univ Oxford, Dept Phys, Oxford OX1 3RH, England. [Bildsten, Lars] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA. [Bildsten, Lars] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Dekany, Richard; Rahmer, Gustavo; Hale, David; Smith, Roger; Zolkower, Jeff; Velur, Viswa; Walters, Richard; Henning, John; Bui, Kahnh; McKenna, Dan] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA. [Blake, Cullen] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. RP Kasliwal, MM (reprint author), CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA. RI Gehrels, Neil/D-2971-2012; Green, Yoav/L-5874-2015; OI Green, Yoav/0000-0002-0809-6575; Sullivan, Mark/0000-0001-9053-4820 FU Gordon and Betty Moore Foundation; Israel Science Foundation; US-Israel Binational Science Foundation; Weizmann-UK; Marie Curie IRG fellowship; Peter and Patricia Gruber Award; Benoziyo Center for Astrophysics; Yeda-Sela center at the Weizmann Institute; National Science Foundation (NSF) [AST-0908886, PHY 05-51164, AST07-07633]; Sylvia & Jim Katzman Foundation; Richard & Rhoda Goldman Fund; Gary and Cynthia Bengier; TABASGO Foundation; NASA through Spitzer [1322321]; Space Telescope Science Institute [AR-11248]; NASA [NAS 5-26555]; DOE; Einstein fellowship; Harvard University; University of Virginia; Associated Universities, Inc. FX M.M.K. thanks the Gordon and Betty Moore Foundation for a Hale Fellowship in support of graduate study. The Weizmann Institute PTF participation is supported in part by the Israel Science Foundation via grants to A.G.Y. The Weizmann-Caltech collaborative PTF effort is supported by the US-Israel Binational Science Foundation. A.G.Y. and M. S. are jointly supported by the "making connections" Weizmann-UK program. A.G.Y. further acknowledges support by a Marie Curie IRG fellowship and the Peter and Patricia Gruber Award, as well as funding by the Benoziyo Center for Astrophysics and the Yeda-Sela center at the Weizmann Institute. A.V.F.'s group and KAIT are supported by National Science Foundation (NSF) grant AST-0908886, the Sylvia & Jim Katzman Foundation, the Richard & Rhoda Goldman Fund, Gary and Cynthia Bengier, and the TABASGO Foundation; additional funding was provided by NASA through Spitzer grant 1322321, as well as HST grant AR-11248 from the Space Telescope Science Institute, which is operated by Associated Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. J.S.B. and his group are partially funded by a DOE SciDAC grant. E.O.O. and D. P. are supported by the Einstein fellowship. L. B. is supported by the National Science Foundation under grants PHY 05-51164 and AST07-07633.; The Hobby-Eberly Telescope (HET) is a joint project of the University of Texas at Austin, the Pennsylvania State University, Stanford University, Ludwig-Maximillians-Universitat Munchen, and Georg-August-Universitat Gottingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly. The Marcario LRS is named for Mike Marcario of High Lonesome Optics, who fabricated several optics 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. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology. PAIRITEL is operated by the Smithsonian Astrophysical Observatory (SAO) and was made possible by a grant from the Harvard University Milton Fund, the camera loan from the University of Virginia, and the continued support of the SAO and UC Berkeley. The Expanded Very Large Array is operated by the National Radio Astronomy Observatory, a facility of the NSF operated under cooperative agreement by Associated Universities, Inc. NR 53 TC 25 Z9 26 U1 0 U2 10 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 APR 1 PY 2011 VL 730 IS 2 AR 134 DI 10.1088/0004-637X/730/2/134 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900074 ER PT J AU Kowalski, MP Barstow, MA Wood, KS Yentis, DJ Fritz, GG Lapington, JS Barbee, TW Berendse, FB Cruddace, RG AF Kowalski, M. P. Barstow, M. A. Wood, K. S. Yentis, D. J. Fritz, G. G. Lapington, J. S. Barbee, T. W., Jr. Berendse, F. B. Cruddace, R. G. TI HIGH-RESOLUTION SPECTROSCOPY OF FEIGE 24 IN THE EXTREME-ULTRAVIOLET SO ASTROPHYSICAL JOURNAL LA English DT Article DE local interstellar matter; stars: abundances; stars: evolution; techniques: spectroscopic; ultraviolet: stars; white dwarfs ID DA WHITE-DWARFS; INTERSTELLAR-MEDIUM; MODEL ATMOSPHERES; BINARY FEIGE-24; G191-B2B; SPECTROGRAPH; PHOTOSPHERE; FEATURES; STARS AB We report the first high-resolution (R = 4000) spectroscopic observation of the binary DA white dwarf Feige 24 in the extreme-ultraviolet band 220-250 angstrom. A stellar atmosphere model assuming a homogeneous element distribution yields a best fit to the data that excludes a significant abundance of photospheric helium. The upper limit on the photospheric helium abundance is 2.5 x 10(-6) (90% confidence), equivalent to a lower limit of 1.2 x 10(-13) M-circle dot on the overlying layer of hydrogen. An ionized interstellar He component (3.9 x 10(17) cm(-2)) is clearly present along the line of sight, which implies an He ionization fraction of 0.72, considerably higher than is typical of the local interstellar medium. However, some of this material may be associated with circumstellar gas, which has been detected by analysis of the CIV absorption line doublet in a Hubble Space Telescope/Space Telescope Imaging Spectrograph spectrum. C1 [Kowalski, M. P.; Wood, K. S.; Yentis, D. J.; Berendse, F. B.; Cruddace, R. G.] USN, Res Lab, Washington, DC 20375 USA. [Barstow, M. A.; Lapington, J. S.] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England. [Fritz, G. G.] PRAXIS Inc, Alexandria, VA 22303 USA. [Barbee, T. W., Jr.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Kowalski, MP (reprint author), USN, Res Lab, Code 7655,4555 Overlook Ave SW, Washington, DC 20375 USA. EM michael.kowalski@nrl.navy.mil; mab@star.le.ac.uk; kent.wood@nrl.navy.mil; gil.fritz@nrl.navy.mil; jsl12@star.le.ac.uk; barbee2@llnl.gov; fbb0710@gmail.com; raymond.cruddace@nrl.navy.mil RI Lapington, Jon/A-7669-2012 FU NASA [NDPR S-47440F, NNG08WFF08I, NNG10WQ54I]; Office of Naval Research; Science and Technology Facilities Research Council, UK FX The Naval Research Laboratory (NRL) was supported in this work by NASA under the grants NDPR S-47440F, NNG08WFF08I, and NNG10WQ54I, and by the Office of Naval Research under NRL work unite 3641 (Application of Multilayer Coated Optics to Remote Sensing). The University of Leicester acknowledges the support they received for this project from the Science and Technology Facilities Research Council, UK. The authors collectively thank the support teams at the Wallops Flight Facility and the White Sands Missile Range: Lupe Archuleta, Chico Ayers, Bea Barron, John Brinton, Jeff Cain, Chris Christeson, Walt Costello, Rick Evavold, Ted Gacek, Becky Grzelachowski, Valeria Gsell, Jose Guerrero, Paul Harmon, Chris Hoxworth, Dave Kilconyne, Dave Krause, Charlie Kupelian, LarryMannel, Glenn Maxfield, Jarret Morton, Rick Nelson, Jeff Percival, Giovanni Rosanova, Neil Shoemaker, Adam Sturis, Matt Vaughn, Ed White, Tom Widmyer, BobWoods, and John Young. We reserve our highest thanks to Mission Manager Ted Gass, who guided this mission to a comprehensive success. NR 29 TC 3 Z9 3 U1 1 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2011 VL 730 IS 2 AR 115 DI 10.1088/0004-637X/730/2/115 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900055 ER PT J AU Miller, AA Hillenbrand, LA Covey, KR Poznanski, D Silverman, JM Kleiser, IKW Rojas-Ayala, B Muirhead, PS Cenko, SB Bloom, JS Kasliwal, MM Filippenko, AV Law, NM Ofek, EO Dekany, RG Rahmer, G Hale, D Smith, R Quimby, RM Nugent, P Jacobsen, J Zolkower, J Velur, V Walters, R Henning, J Bui, K McKenna, D Kulkarni, SR Klein, CR Kandrashoff, M Morton, A AF Miller, Adam A. Hillenbrand, Lynne A. Covey, Kevin R. Poznanski, Dovi Silverman, Jeffrey M. Kleiser, Io K. W. Rojas-Ayala, Barbara Muirhead, Philip S. Cenko, S. Bradley Bloom, Joshua S. Kasliwal, Mansi M. Filippenko, Alexei V. Law, Nicholas M. Ofek, Eran O. Dekany, Richard G. Rahmer, Gustavo Hale, David Smith, Roger Quimby, Robert M. Nugent, Peter Jacobsen, Janet Zolkower, Jeff Velur, Viswa Walters, Richard Henning, John Bui, Khanh McKenna, Dan Kulkarni, Shrinivas R. Klein, Christopher R. Kandrashoff, Michael Morton, Alekzandir TI EVIDENCE FOR AN FU ORIONIS-LIKE OUTBURST FROM A CLASSICAL T TAURI STAR SO ASTROPHYSICAL JOURNAL LA English DT Article DE stars: formation; stars: individual (LkHa 188-G4, HBC 722); stars: pre-main sequence; stars: variables: T Tauri, Herbig Ae/Be; stars: winds, outflows ID ALL-SKY SURVEY; DATA RELEASE; EX-LUPI; SPECTROSCOPY; EVOLUTION; VARIABILITY; EXTRACTION; RESOLUTION; VARIABLES; TELESCOPE AB We present pre- and post-outburst observations of the new FU Orionis-like young stellar object PTF 10qpf (also known as LkH alpha 188-G4 and HBC 722). Prior to this outburst, LkH alpha 188-G4 was classified as a classical T Tauri star (CTTS) on the basis of its optical emission-line spectrum superposed on a K8-type photosphere and its photometric variability. The mid-infrared spectral index of LkH alpha 188-G4 indicates a Class II-type object. LkH alpha 188-G4 exhibited a steady rise by similar to 1 mag over similar to 11 months starting in August 2009, before a subsequent more abrupt rise of >3 mag on a timescale of similar to 2 months. Observations taken during the eruption exhibit the defining characteristics of FU Orionis variables: (1) an increase in brightness by >= 4 mag, (2) a bright optical/near-infrared reflection nebula appeared, (3) optical spectra are consistent with a G supergiant and dominated by absorption lines, the only exception being H alpha which is characterized by a P Cygni profile, (4) near-infrared spectra resemble those of late K-M giants/supergiants with enhanced absorption seen in the molecular bands of CO and H2O, and (5) outflow signatures in H and He are seen in the form of blueshifted absorption profiles. LkH alpha 188-G4 is the first member of the FU Orionis-like class with a well-sampled optical to mid-infrared spectral energy distribution in the pre-outburst phase. The association of the PTF 10qpf outburst with the previously identified CTTS LkH alpha 188-G4 (HBC 722) provides strong evidence that FU Orionis-like eruptions represent periods of enhanced disk accretion and outflow, likely triggered by instabilities in the disk. The early identification of PTF 10qpf as an FU Orionis-like variable will enable detailed photometric and spectroscopic observations during its post-outburst evolution for comparison with other known outbursting objects. C1 [Miller, Adam A.; Poznanski, Dovi; Silverman, Jeffrey M.; Kleiser, Io K. W.; Cenko, S. Bradley; Bloom, Joshua S.; Filippenko, Alexei V.; Klein, Christopher R.; Kandrashoff, Michael; Morton, Alekzandir] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Hillenbrand, Lynne A.; Kasliwal, Mansi M.; Ofek, Eran O.; Quimby, Robert M.; Kulkarni, Shrinivas R.] CALTECH, Dept Astrophys, Pasadena, CA 91125 USA. [Covey, Kevin R.; Rojas-Ayala, Barbara; Muirhead, Philip S.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA. [Poznanski, Dovi; Nugent, Peter; Jacobsen, Janet] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Law, Nicholas M.] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada. [Dekany, Richard G.; Rahmer, Gustavo; Hale, David; Smith, Roger; Zolkower, Jeff; Velur, Viswa; Walters, Richard; Henning, John; Bui, Khanh; McKenna, Dan] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA. RP Miller, AA (reprint author), Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA. RI Muirhead, Philip/H-2273-2014; Rojas-Ayala, Barbara/G-4382-2015; OI Muirhead, Philip/0000-0002-0638-8822; Rojas-Ayala, Barbara/0000-0002-0149-1302; Covey, Kevin/0000-0001-6914-7797 FU NASA; NSF FX This research has made use of NASA's Astrophysics Data System Bibliographic Services, the SIMBAD database operated at CDS, Strasbourg, France, the NASA/IPAC Extragalactic Database operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA, and the VizieR database of astronomical catalogs (Ochsenbein et al. 2000). This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by NASA and the NSF. NR 70 TC 48 Z9 48 U1 0 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2011 VL 730 IS 2 AR 80 DI 10.1088/0004-637X/730/2/80 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900020 ER PT J AU Savage, SL McKenzie, DE AF Savage, Sabrina L. McKenzie, David E. TI QUANTITATIVE EXAMINATION OF A LARGE SAMPLE OF SUPRA-ARCADE DOWNFLOWS IN ERUPTIVE SOLAR FLARES SO ASTROPHYSICAL JOURNAL LA English DT Article DE Sun: corona; Sun: coronal mass ejections (CMEs); Sun: flares; Sun: magnetic topology; Sun: UV radiation; Sun: X-rays, gamma rays ID CORONAL MASS EJECTION; FIELD LINE SHRINKAGE; CURRENT SHEET; MAGNETIC-FIELDS; RECONNECTION; EMISSIONS; MOTIONS; HINODE; MODEL AB Sunward-flowing voids above post-coronal mass ejection flare arcades were first discovered using the soft X-ray telescope aboard Yohkoh and have since been observed with TRACE (extreme ultraviolet (EUV)), SOHO/LASCO (white light), SOHO/SUMER (EUV spectra), and Hinode/XRT (soft X-rays). Supra-arcade downflow (SAD) observations suggest that they are the cross-sections of thin flux tubes retracting from a reconnection site high in the corona. Supra-arcade downflowing loops (SADLs) have also been observed under similar circumstances and are theorized to be SADs viewed from a perpendicular angle. Although previous studies have focused on dark flows because they are easier to detect and complementary spectral data analysis reveals their magnetic nature, the signal intensity of the flows actually ranges from dark to bright. This implies that newly reconnected coronal loops can contain a range of hot plasma density. Previous studies have presented detailed SAD observations for a small number of flares. In this paper, we present a substantial SADs and SADLs flare catalog. We have applied semiautomatic detection software to several of these events to detect and track individual downflows thereby providing statistically significant samples of parameters such as velocity, acceleration, area, magnetic flux, shrinkage energy, and reconnection rate. We discuss these measurements (particularly the unexpected result of the speeds being an order of magnitude slower than the assumed Alfven speed), how they were obtained, and potential impact on reconnection models. C1 [Savage, Sabrina L.] Oak Ridge Associated Univ, NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Savage, Sabrina L.; McKenzie, David E.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. RP Savage, SL (reprint author), Oak Ridge Associated Univ, NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd,Code 671, Greenbelt, MD 20771 USA. FU NASA [NNM07AB07C]; Harvard-Smithsonian Astrophysical Observatory FX This work was supported by NASA under contract NNM07AB07C with the Harvard-Smithsonian Astrophysical Observatory. The authors thank Drs. D. Longcope, C. Kankelborg, J. Qiu, A. Des Jardins, and the anonymous referee for constructive conversations and comments. Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in cooperation with ESA and NSC (Norway). Yohkoh data are provided courtesy of the NASA-supported Yohkoh Legacy Archive at Montana State University. NR 18 TC 36 Z9 37 U1 1 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2011 VL 730 IS 2 AR 98 DI 10.1088/0004-637X/730/2/98 PG 16 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 735TR UT WOS:000288441900038 ER PT J AU Dorcas, ME Willson, JD Gibbons, JW AF Dorcas, Michael E. Willson, John D. Gibbons, J. Whitfield TI Can invasive Burmese pythons inhabit temperate regions of the southeastern United States? SO BIOLOGICAL INVASIONS LA English DT Article DE Everglades National Park; Invasive alien species; Python molurus bivittatus; Range expansion; Risk assessment; Thermal biology ID DROSOPHILA-MELANOGASTER; PLASTICITY; ECTOTHERMS; SELECTION; CLINES AB Understanding potential for range expansion is critical when evaluating the risk posed by invasive species. Burmese pythons (Python molurus bivittatus) are established in southern Florida and pose a significant threat to native ecosystems. Recent studies indicate that climate suitable for the species P. molurus exists throughout much of the southern United States. We examined survivorship, thermal biology, and behavior of Burmese pythons from South Florida in a semi-natural enclosure in South Carolina, where winters are appreciably cooler than in Florida, but within the predicted region of suitable climate. All pythons acclimated to the enclosure, but most died after failing to seek appropriate refugia during sub-freezing weather. The remaining snakes used refugia but died during an unusually cold period in January 2010. Although all snakes died during the study, most survived extended periods at temperatures below those typical of southern Florida and none exhibited obvious signs of disease. Our study represents a first step in evaluating the results of climate matching models and we address factors that may affect range expansion in this invasive species. C1 [Dorcas, Michael E.] Davidson Coll, Dept Biol, Davidson, NC 28035 USA. [Willson, John D.; Gibbons, J. Whitfield] Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Dorcas, ME (reprint author), Davidson Coll, Dept Biol, Davidson, NC 28035 USA. EM midorcas@davidson.edu FU US Dept. of Energy [DE-FC-09-075R22506]; Davidson College Department of Biology; Duke Power FX We thank R. Bauer and S. Poppy for assisting with many aspects of the study and helping to track snakes. For assistance with various project logistics and advice, we thank K. Andrews, M. Cherkiss, B. DeGregorio, J. Greene, C. Hagen, K. Hart, E. Kabela, F. Mazzotti, T. Mills, S. Pfaff, M. Pilgrim, M. Rochford, S. Snow, T. Tuberville, A. Tucker, T. Walters, and A. Wolfe. R. Snow provided and transported animals. We especially thank R. McManamon and B. Ritchie from the Univ. of Georgia School of Veterinary Medicine who conducted necropsies. E. Eskew assisted with calibrating dataloggers. S. Foley assisted with data analysis. E. Eskew, S. Price, K. Hart, R. Reed, R. Snow, and two anonymous reviewers all provided comments on the manuscript. All procedures used in the study were approved by the University of Georgia Animal Care and Use Committee (no. A2009 2-041). Pythons were collected under scientific collecting permit #EVER-2009-SCI-0001 issued by the NPS. This material is based upon work supported by the US Dept. of Energy under Award Number DE-FC-09-075R22506 to the University of Georgia's Savannah River Ecology Lab. Partial funding was provided by the Davidson College Department of Biology and Duke Power. NR 32 TC 11 Z9 13 U1 4 U2 127 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1387-3547 J9 BIOL INVASIONS JI Biol. Invasions PD APR PY 2011 VL 13 IS 4 BP 793 EP 802 DI 10.1007/s10530-010-9869-6 PG 10 WC Biodiversity Conservation; Ecology SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 735VK UT WOS:000288448400001 ER PT J AU Yuan, F Stock, SR Haeffner, DR Almer, JD Dunand, DC Brinson, LC AF Yuan, Fang Stock, Stuart R. Haeffner, Dean R. Almer, Jonathan D. Dunand, David C. Brinson, L. Catherine TI A new model to simulate the elastic properties of mineralized collagen fibril SO BIOMECHANICS AND MODELING IN MECHANOBIOLOGY LA English DT Article DE Bone; Collagen fibril; Modeling; Finite element analysis; Structure-property relationship ID MECHANICAL-PROPERTIES; VISCOELASTIC PROPERTIES; TRABECULAR BONE; CORTICAL BONE; I COLLAGEN; NANOSCALE; TENDON; SITU; AGE; HYDROXYAPATITE AB Bone, because of its hierarchical composite structure, exhibits an excellent combination of stiffness and toughness, which is due substantially to the structural order and deformation at the smaller length scales. Here, we focus on the mineralized collagen fibril, consisting of hydroxyapatite plates with nanometric dimensions aligned within a protein matrix, and emphasize the relationship between the structure and elastic properties of a mineralized collagen fibril. We create two- and three-dimensional representative volume elements to represent the structure of the fibril and evaluate the importance of the parameters defining its structure and properties of the constituent mineral and collagen phase. Elastic stiffnesses are calculated by the finite element method and compared with experimental data obtained by synchrotron X-ray diffraction. The computational results match the experimental data well, and provide insight into the role of the phases and morphology on the elastic deformation characteristics. Also, the effects of water, imperfections in the mineral phase and mineral content outside the mineralized collagen fibril upon its elastic properties are discussed. C1 [Brinson, L. Catherine] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA. [Yuan, Fang; Dunand, David C.; Brinson, L. Catherine] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Stock, Stuart R.] Northwestern Univ, Dept Mol Pharmacol & Biol Chem, Chicago, IL 60611 USA. [Haeffner, Dean R.; Almer, Jonathan D.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Brinson, LC (reprint author), Northwestern Univ, Dept Mech Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA. EM cbrinson@northwestern.edu RI Brinson, L. Catherine/B-6678-2009; Dunand, David/B-7515-2009; Brinson, L Catherine/B-1315-2013; OI Brinson, L Catherine/0000-0003-2551-1563; Dunand, David/0000-0001-5476-7379 FU U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX We thank Ms. A. C. Deymier-Black for assistance with TGA measurement. We also thank Ms. A. Singhal and Ms. A. C. Deymier-Black for their invaluable assistance and discussions about the structure and mechanical properties of the mineralized collagen fibril. This study is financially supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 59 TC 32 Z9 33 U1 3 U2 17 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1617-7959 EI 1617-7940 J9 BIOMECH MODEL MECHAN JI Biomech. Model. Mechanobiol. PD APR PY 2011 VL 10 IS 2 BP 147 EP 160 DI 10.1007/s10237-010-0223-9 PG 14 WC Biophysics; Engineering, Biomedical SC Biophysics; Engineering GA 740LU UT WOS:000288796900001 PM 20521160 ER PT J AU Harris, DB Dodge, DA AF Harris, D. B. Dodge, D. A. TI An Autonomous System for Grouping Events in a Developing Aftershock Sequence SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA LA English DT Article ID WAVE-FORM CORRELATION; CROSS-CORRELATION; SEISMIC EVENTS; SAN-SIMEON; CALIFORNIA; EARTHQUAKE; PARKFIELD; COMPLEX; FAULT AB We describe a prototype detection framework that automatically clusters events in real time from a rapidly unfolding aftershock sequence. We use the fact that many aftershocks are repetitive, producing similar waveforms. By clustering events based on correlation measures of waveform similarity, the number of independent event instances that must be examined in detail by analysts may be reduced. Our system processes array data and acquires waveform templates with a short-term average (STA)/long-term average (LTA) detector operating on a beam directed at the P phases of the aftershock sequence. The templates are used to create correlation-type (subspace) detectors that sweep the subsequent data stream for occurrences of the same waveform pattern. Events are clustered by association with a particular detector. Hundreds of subspace detectors can run in this framework a hundred times faster than in real time. Nonetheless, to check the growth in the number of detectors, the framework pauses periodically and reclusters detections to reduce the number of event groups. These groups define new subspace detectors that replace the older generation of detectors. Because low-magnitude occurrences of a particular signal template may be missed by the STA/LTA detector, we advocate restarting the framework from the beginning of the sequence periodically to reprocess the entire data stream with the existing detectors. We tested the framework on 10 days of data from the Nevada Seismic Array (NVAR) covering the 2003 San Simeon earthquake. One hundred eighty-four automatically generated detectors produced 676 detections resulting in a potential reduction in analyst workload of up to 73%. C1 [Harris, D. B.; Dodge, D. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Harris, DB (reprint author), Deschutes Signal Proc LLC, 81211 E Wapinitia Rd, Maupin, OR 97037 USA. EM dodge1@llnl.gov FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 19 TC 19 Z9 21 U1 1 U2 7 PU SEISMOLOGICAL SOC AMER PI EL CERRITO PA PLAZA PROFESSIONAL BLDG, SUITE 201, EL CERRITO, CA 94530 USA SN 0037-1106 J9 B SEISMOL SOC AM JI Bull. Seismol. Soc. Amer. PD APR PY 2011 VL 101 IS 2 BP 763 EP 774 DI 10.1785/0120100103 PG 12 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 738NR UT WOS:000288647000023 ER PT J AU Brown, WM Wang, P Plimpton, SJ Tharrington, AN AF Brown, W. Michael Wang, Peng Plimpton, Steven J. Tharrington, Arnold N. TI Implementing molecular dynamics on hybrid high performance computers - short range forces SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article DE Molecular dynamics; GPU; Hybrid parallel computing ID GRAPHICS PROCESSING UNITS; SIMULATIONS; EFFICIENT; ACCELERATOR; ALGORITHMS; SCALE AB The use of accelerators such as graphics processing units (GPUs) has become popular in scientific computing applications due to their low cost, impressive floating-point capabilities, high memory bandwidth, and low electrical power requirements. Hybrid high-performance computers, machines with more than one type of floating-point processor, are now becoming more prevalent due to these advantages. In this work, we discuss several important issues in porting a large molecular dynamics code for use on parallel hybrid machines - (1) choosing a hybrid parallel decomposition that works on central processing units (CPUs) with distributed memory and accelerator cores with shared memory, (2) minimizing the amount of code that must be ported for efficient acceleration, (3) utilizing the available processing power from both multi-core CPUs and accelerators, and (4) choosing a programming model for acceleration. We present our solution to each of these issues for short-range force calculation in the molecular dynamics package LAMMPS, however, the methods can be applied in many molecular dynamics codes. Specifically, we describe algorithms for efficient short range force calculation on hybrid high-performance machines. We describe an approach for dynamic load balancing of work between CPU and accelerator cores. We describe the Geryon library that allows a single code to compile with both CUDA and OpenCL for use on a variety of accelerators. Finally, we present results on a parallel test cluster containing 32 Fermi GPUs and 180 CPU cores. (C) 2010 Elsevier B.V. All rights reserved. C1 [Brown, W. Michael; Tharrington, Arnold N.] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN 37831 USA. [Wang, Peng] NVIDIA, Santa Clara, CA USA. [Plimpton, Steven J.] Sandia Natl Labs, Albuquerque, NM USA. RP Brown, WM (reprint author), Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN 37831 USA. EM brownw@ornl.gov; penwang@nvidia.com; sjplimp@sandia.gov; arnoldt@ornl.gov FU Office of Advanced Scientific Computing Research, Office of Science, U.S. Department of Energy [DE-AC05-00OR22725]; Office of Science of the U.S. Department of Energy [DE-AC05-000R22725]; U.S. Department of Energy [DE-AC04-94AL85000]; CSRF program at Sandia National Laboratories FX This research was conducted in part under the auspices of the Office of Advanced Scientific Computing Research, Office of Science, U.S. Department of Energy under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. This research used resources of the Leadership Computing Facility at Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-000R22725 with UT-Battelle, LLC. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes. Sandia is a multipurpose laboratory operated by Sandia Corporation, a Lockheed-Martin Co., for the U.S. Department of Energy under Contract No. DE-AC04-94AL85000. Support for this work was provided by the CSRF program at Sandia National Laboratories. NR 34 TC 105 Z9 107 U1 8 U2 47 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 APR PY 2011 VL 182 IS 4 BP 898 EP 911 DI 10.1016/j.cpc.2010.12.021 PG 14 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 735HH UT WOS:000288404300005 ER PT J AU Labbe, J Murat, C Morin, E Le Tacon, F Martin, F AF Labbe, Jessy Murat, Claude Morin, Emmanuelle Le Tacon, Francois Martin, Francis TI Survey and analysis of simple sequence repeats in the Laccaria bicolor genome, with development of microsatellite markers SO CURRENT GENETICS LA English DT Article DE Simple sequence repeat; Microsatellites; Laccaria bicolor; Ectomycorrhizal fungus ID FUNGAL GENOMES; DOUGLAS-FIR; EVOLUTION; INSIGHTS; STRAIN; TRANSCRIPTION; PERSISTENCE; MECHANISMS; EXPANSION; SYMBIOSIS AB It is becoming clear that simple sequence repeats (SSRs) play a significant role in fungal genome organization, and they are a large source of genetic markers for population genetics and meiotic maps. We identified SSRs in the Laccaria bicolor genome by in silico survey and analyzed their distribution in the different genomic regions. We also compared the abundance and distribution of SSRs in L. bicolor with those of the following fungal genomes: Phanerochaete chrysosporium, Coprinopsis cinerea, Ustilago maydis, Cryptococcus neoformans, Aspergillus nidulans, Magnaporthe grisea, Neurospora crassa and Saccharomyces cerevisiae. Using the MISA computer program, we detected 277,062 SSRs in the L. bicolor genome representing 8% of the assembled genomic sequence. Among the analyzed basidiomycetes, L. bicolor exhibited the highest SSR density although no correlation between relative abundance and the genome sizes was observed. In most genomes the short motifs (mono- to trinucleotides) were more abundant than the longer repeated SSRs. Generally, in each organism, the occurrence, relative abundance, and relative density of SSRs decreased as the repeat unit increased. Furthermore, each organism had its own common and longest SSRs. In the L. bicolor genome, most of the SSRs were located in intergenic regions (73.3%) and the highest SSR density was observed in transposable elements (TEs; 6,706 SSRs/Mb). However, 81% of the protein-coding genes contained SSRs in their exons, suggesting that SSR polymorphism may alter gene phenotypes. Within a L. bicolor offspring, sequence polymorphism of 78 SSRs was mainly detected in non-TE intergenic regions. Unlike previously developed microsatellite markers, these new ones are spread throughout the genome; these markers could have immediate applications in population genetics. C1 [Labbe, Jessy; Murat, Claude; Morin, Emmanuelle; Le Tacon, Francois; Martin, Francis] Nancy Univ, INRA Nancy, INRA, UMR 1136, F-54280 Champenoux, France. RP Labbe, J (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd,MS-6034,Bldg 1506, Oak Ridge, TN 37831 USA. EM labbejj@ornl.gov RI Labbe, Jessy/G-9532-2011 OI Labbe, Jessy/0000-0003-0368-2054 FU European Commission within the Network of Excellence EVOLTREE [016322]; INRA; Region Lorraine Council; Region Lorraine of France; Institut Federateur [110] FX This work was supported by the European Commission within the Network of Excellence EVOLTREE (FP6-016322), INRA and Region Lorraine Council grants (project FOR-BOIS to FM). Dr. Labbe was supported by a Ph.D. scholarship from the Region Lorraine of France. We would like to thank Dr. Benoit Barres, Dr. Pascal Frey, Axelle Andrieux and Christine Delaruelle (UMR IaM) for their assistance and helpful discussions, and Em Turner Chitty for the English proofreading. The INRA DNA sequencing facilities are funded by the Region Lorraine Council and the Institut Federateur 110. NR 48 TC 21 Z9 28 U1 1 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0172-8083 EI 1432-0983 J9 CURR GENET JI Curr. Genet. PD APR PY 2011 VL 57 IS 2 BP 75 EP 88 DI 10.1007/s00294-010-0328-9 PG 14 WC Genetics & Heredity SC Genetics & Heredity GA 736RK UT WOS:000288511600001 PM 21132299 ER PT J AU Quiros-Alcala, L Bradman, A Nishioka, M Harnly, ME Hubbard, A McKone, TE Eskenazi, B AF Quiros-Alcala, Lesliam Bradman, Asa Nishioka, Marcia Harnly, Martha E. Hubbard, Alan McKone, Thomas E. Eskenazi, Brenda TI Concentrations and loadings of polybrominated diphenyl ethers in dust from low-income households in California SO ENVIRONMENT INTERNATIONAL LA English DT Article DE House dust; Polybrominated diphenyl ethers (PBDEs); Children; Low-income ID PBDE FLAME RETARDANTS; INDOOR DUST; EXPOSURE; CANADA AB California residents may experience the highest polybrominated diphenyl ether (PBDE) flame retardant exposures in the United States, the nation with the highest body burdens worldwide. It is hypothesized that Californians' high exposures are due to the state's strict furniture flammability standards. Ingestion of PBDE-contaminated dust, to which children may be particularly susceptible, is a dominant exposure pathway. Low-income populations may also face disparately high exposures due to the presence of older, deteriorated or poorly manufactured furniture treated with PBDEs. We collected up to two dust samples per home (54 samples total), several days apart, from low-income California households in the urban community of Oakland (n = 13 homes) and the agricultural community of Salinas (n = 15 homes). We measured BDE-47, BDE-99 and BDE-100, the major constituents of the penta-PBDE flame retardant formulation commonly used in furniture. All three PBDE congeners were detected in every sample with concentrations (loadings) ranging from 185 to 126,000 ng/g (621-264,000 ng/m(2)), 367-220,000 ng/g (1550-457,000 ng/m(2)), and 84-41.100 ng/g (257-85,700 ng/m(2)) for BDE-47, BDE-99 and BDE-100, respectively. Median concentrations (loadings) observed in Salinas homes for BDE-47, BDE-99 and BDE-100 were 3100 ng/g (10,800 ng/m(2)), 5480 ng/g (19,500 ng/m(2)). and 1060 ng/g (3810 ng/m(2)), respectively, and in Oakland homes 2780 ng/g (10,700 ng/m(2)), 4450 ng/g (19,100 ng/m(2)), and 1050 ng/g (4000 ng/m(2)), respectively. Maximum concentrations for BDE-47 and BDE-99 are the highest reported to date. Indoor concentrations and loadings did not significantly differ between communities; concentrations and loadings were strongly correlated between collections for all three congeners (Spearman rho = 0.79-0.97, p<0.002). We estimated non-dietary ingestion of each congener for one child in each home (n = 28 children) and found that estimated intake for BDE-47 and BDE-99 exceeded the U.S. Environmental Protection Agency's recommended chronic reference dose for three and five children, respectively. Children's estimated intake via dust ranged from 1.0 to 599 ng/kg/day, 2.0-1065 ng/kg/day and 0.5-196 ng/kg/day for BDE-47, BDE-99 and BDE-100, respectively. In order to mitigate these exposures, future research must address the factors that contribute to PBDE exposures in low-income homes. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Quiros-Alcala, Lesliam; Bradman, Asa; McKone, Thomas E.; Eskenazi, Brenda] Univ Calif Berkeley, Sch Publ Hlth, CERCH, Berkeley, CA 94704 USA. [Nishioka, Marcia] Battelle Mem Inst, Columbus, OH 43201 USA. [Harnly, Martha E.] Calif Dept Publ Hlth, Environm Hlth Invest Branch, Richmond, CA 94804 USA. [Hubbard, Alan] Univ Calif Berkeley, Sch Publ Hlth, Div Biostat, Berkeley, CA 94720 USA. [McKone, Thomas E.] Lawrence Berkeley Lab, Berkeley, CA 95720 USA. RP Bradman, A (reprint author), Univ Calif Berkeley, Sch Publ Hlth, CERCH, 1995 Univ Ave,Suite 265, Berkeley, CA 94704 USA. EM abradman@berkeley.edu RI Quiros-Alcala, Lesliam /Q-4928-2016 OI Quiros-Alcala, Lesliam /0000-0002-6600-7227 FU EPA [RD 83171001, F5D30812]; NIEHS [PO1ES009605]; UC MEXUS; UC Berkeley Center for Latino Policy Research FX Work was supported by EPA (RD 83171001, Science to Achieve Results-STAR-Graduate Fellowship Program F5D30812), NIEHS (PO1ES009605), UC MEXUS, and the UC Berkeley Center for Latino Policy Research. Contents do not necessarily represent the official views of funders. We thank our staff and community partners for helping with recruitment efforts, our study participants, and Katherine Kogut, Drs. Rupali Das, Katharine Hammond, Mark Nicas, and Rosana Weldon for editorial comments. NR 34 TC 22 Z9 22 U1 4 U2 30 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0160-4120 J9 ENVIRON INT JI Environ. Int. PD APR PY 2011 VL 37 IS 3 BP 592 EP 596 DI 10.1016/j.envint.2010.12.003 PG 5 WC Environmental Sciences SC Environmental Sciences & Ecology GA 736HH UT WOS:000288481200006 PM 21239062 ER PT J AU Dupouy, G Bonhoure, I Conradson, SD Dumas, T Hennig, C Le Naour, C Moisy, P Petit, S Scheinost, AC Simoni, E Den Auwer, C AF Dupouy, Gaelle Bonhoure, Isabelle Conradson, Steven D. Dumas, Thomas Hennig, Christoph Le Naour, Claire Moisy, Philippe Petit, Sebastien Scheinost, Andreas C. Simoni, Eric Den Auwer, Christophe TI Local Structure in Americium and Californium Hexacyanoferrates - Comparison with Their Lanthanide Analogues SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY LA English DT Article DE Actinides; Americium; Californium; X-ray absorption spectroscopy; EXAFS spectroscopy ID RAY-ABSORPTION SPECTROSCOPY; BRIDGED COMPLEXES; AQUEOUS-SOLUTION; FINE-STRUCTURE; IONIC-RADII; SOLID-STATE; AQUA ION; DIFFRACTION; FERROCYANIDE; CRYSTALLINE AB Metal hexacyanoferrates are well known molecular solids for a large variety of cations, although very little has been described for actinide adducts. Two new members of actinide(III) hexacyanoferrates were synthesized with the cations americium and californium. They were structurally characterized by infrared and X-ray absorption spectroscopy. Combined EXAFS data at the iron K edge and actinide L-3 edge provide evidence for a three-dimensional model for these two new compounds. Structural data in terms of bond lengths were compared to those reported for the parent lanthanide( III) compounds, neodymium and gadolinium hexacyanoferrates, respectively: the americium compound with (KNdFeII)-Fe-III(CN)6 center dot 4H(2)O and the californium compound with (KGdFeII)-Fe-III(CN)6 center dot 3.5H(2)O and (KGdFeII)-Fe-III(CN)(6)center dot 3H(2)O. This comparison between actinide and lanthanide homologues has been carried out on the basis of ionic radii considerations. The americium and neodymium environments appear to be very similar and are arranged in a tricapped trigonal prism polyhedron of coordination number 9 (CN: 9), in which the americium atom is bonded to six nitrogen atoms and to three water molecules. For the californium adduct, a similar comparison and bond length and angle values derived from EXAFS studies suggest that the californium cation sits in a bicapped trigonal prism (CN: 8) as in (KGdFeII)-Fe-III(CN)(6)center dot 3H(2)O. This arrangement differs from that in the structure of (KGdFeII)-Fe-III(CN)(6)center dot 3.5H(2)O, in which the gadolinium atom is surrounded by 9 atoms. This is one of the rare pieces of information revealed by EXAFS spectroscopy for americium and californium in comparison to lanthanide atoms in molecular solid compounds. A discussion on the decrease in bond length and coordination number from americium to californium is also provided, on the basis of crystallographic results reported in the literature for actinide(III) and lanthanide(III) hydrate series. C1 [Dupouy, Gaelle; Bonhoure, Isabelle; Dumas, Thomas; Moisy, Philippe; Petit, Sebastien; Den Auwer, Christophe] CEA, Nucl Energy Div, RadioChem & Proc Dept, F-30207 Bagnols Sur Ceze, France. [Conradson, Steven D.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Hennig, Christoph; Scheinost, Andreas C.] Forschungszentrum Dresden Rossendorf, D-01314 Dresden, Germany. [Le Naour, Claire; Simoni, Eric] Univ Paris 11, IPN Orsay, F-91405 Orsay, France. RP Den Auwer, C (reprint author), CEA, Nucl Energy Div, RadioChem & Proc Dept, F-30207 Bagnols Sur Ceze, France. EM christophe.denauwer@cea.fr RI dumas, thomas/B-5950-2016; Moisy, Philippe/H-2477-2015; Scheinost, Andreas/D-2275-2010; The Rossendorf Beamline at ESRF, ROBL/A-2586-2011 OI dumas, thomas/0000-0001-6425-6484; Moisy, Philippe/0000-0002-9331-0846; FU Groupement National de Recherche, PARIS, France; European Community FX Support for this research was provided by the CEA, Nuclear Energy Division, Basic Research Program (RBPCH) of the Groupement National de Recherche, PARIS, France and the International Research Staff Exchange Scheme (HEXANE project) of the European Community. XAS measurements were carried out at ESRF/ROBL, a European synchrotron user facility, at SSRL/11-2, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences, and at SOLEIL/SAMBA, a French national user facility. The authors would like to thank Valerie Briois, Stephanie Belin, and Emiliano Fonda (SOLEIL/SAMBA) for their help. They also would like to acknowledge Lester R. Morss for the former loan of 249Cf through the heavy isotopes production program of the U.S. Department of Energy. NR 50 TC 10 Z9 10 U1 6 U2 31 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1434-1948 EI 1099-0682 J9 EUR J INORG CHEM JI Eur. J. Inorg. Chem. PD APR PY 2011 IS 10 BP 1560 EP 1569 DI 10.1002/ejic.201001004 PG 10 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 741HP UT WOS:000288855100007 ER PT J AU Murphy, MJ Adrian, RJ AF Murphy, Michael J. Adrian, Ronald J. TI PIV through moving shocks with refracting curvature SO EXPERIMENTS IN FLUIDS LA English DT Article; Proceedings Paper CT 8th International Symposium on Particle Image Velocimetry (PIV 09) CY AUG 25-28, 2009 CL Monash Univ, Melbourne, AUSTRALIA HO Monash Univ ID PLANAR VELOCITY-MEASUREMENTS; OPTICAL DISTORTION; BLAST WAVES; INTERFEROMETER; VELOCIMETRY; LAYERS AB Particle image velocimetry (PIV) is applied to moving millimeter shock waves whose density jump and small radii of curvature make refraction significant. The motion of the shock front is also much larger than the motion of the corresponding mass at the front. A Lagrangian model of particle displacement in response to a moving shock is developed to investigate the relationship between particle displacements and the actual mass velocity behind the shock. Errors in PIV measurements due to light refraction across a curved, moving shock are investigated in terms of both position and velocity errors using a refraction model developed from geometrical optics. The model is experimentally validated and applied to 1-D slices of data extracted from PIV vector fields, and the resulting measurement errors are quantified. C1 [Murphy, Michael J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Adrian, Ronald J.] Arizona State Univ, Lab Energet Flow & Turbulence, Sch Mech Aerosp Chem & Mat Engn, Tempe, AZ 85287 USA. RP Murphy, MJ (reprint author), Los Alamos Natl Lab, W-6 Detonator Technol,MS P950, Los Alamos, NM 87545 USA. EM mjmurphy@lanl.gov NR 25 TC 7 Z9 7 U1 1 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0723-4864 J9 EXP FLUIDS JI Exp. Fluids PD APR PY 2011 VL 50 IS 4 SI SI BP 847 EP 862 DI 10.1007/s00348-010-0934-9 PG 16 WC Engineering, Mechanical; Mechanics SC Engineering; Mechanics GA 740OD UT WOS:000288803300008 ER PT J AU Reith, F Etschmann, B Dart, RC Brewe, DL Vogt, S Mumm, AS Brugger, J AF Reith, Frank Etschmann, Barbara Dart, Robert C. Brewe, Dale L. Vogt, Stefan Mumm, Andreas Schmidt Brugger, Joel TI Distribution and speciation of gold in biogenic and abiogenic calcium carbonates - Implications for the formation of gold anomalous calcrete SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID SOUTH-AUSTRALIA; NUCLEAR MICROPROBE; GAWLER CRATON; X-RAY; PRECIPITATION; SOIL; BACTERIA; PIXE; RHIZOSPHERE; MECHANISMS AB Calcrete (pedogenic Ca carbonate) is an important sampling medium for geochemical gold (Au) exploration in semi-arid and arid regions of Australia, because it is widespread, easy to sample and calcium (Ca) shows a strong positive correlation with Au, but not with base metals, in calcrete overlying buried Au mineralization. In this study we show that the formation of Au-anomalous calcrete can be biomediated through the activity of resident microorganisms, and may not simply be the result of passive nucleation on inactive cells or evapotransporative processes. Calcified microfossils are highly abundant in calcrete from the Barns Au-prospect in South Australia. These microfossils are morphological analogues of calcified cells and biofilms formed in laboratory experiments conducted with active bacterial cultures enriched from Au-anomalous calcareous sand from the Barns prospect. Calcium carbonates precipitated by these cultures consisted mostly of calcite, which is the main carbonate mineral in calcrete. Synchrotron micro-X-ray fluorescence (S-mu XRF) mapping was used to assess the distribution of Au, Zn, Ca and other metals in Ca carbonates precipitated by active bacterial cultures. On a gm-scale the distribution of Au was heterogeneous in these Ca carbonates and differed from base metal distribution, thus mimicking the spatial separation of these metals observed in calcrete. The speciation of Au in Ca carbonates precipitated by active bacteria was measured using micro-X-ray absorption near edge structure spectroscopy (mu-XANES) and resembled that observed in Au-anomalous calcrete closely. While metallic Au was observed in Au 'hotpots', ionic Au was detected in the halo surrounding the 'hotspot'. In contrast, the precipitates produced in the presence of dead bacterial cells or by raising solution pH or pCO(2), i.e., hydroxylapatite, portlandite and vaterite, respectively, did not reflect the mineralogy of calcrete. Gold distribution and speciation in vaterite, formed by raising pCO(2), were homogenous and did not reproduce the variation observed in calcrete and Ca carbonates precipitated by active cells. Increasing the supersaturation with respect to Ca in solution by incremental drying of the medium produced only X-ray amorphous precipitates, or hydroxylapatite in the presence heat-killed cells. In conclusion, this study shows that active microbial processes that combine biogenic Ca carbonatogenesis with Au precipitation are likely to drive the formation of Au-anomalous calcrete. Crown copyright (C) 2011 Published by Elsevier Ltd. All rights reserved. C1 [Reith, Frank] CSIRO Land & Water, Environm Biogeochem, Glen Osmond, SA 5064, Australia. [Reith, Frank; Etschmann, Barbara; Dart, Robert C.; Mumm, Andreas Schmidt; Brugger, Joel] Univ Adelaide, Sch Earth & Environm Sci, Ctr Tecton Resources & Mineral Explorat TRaX, Adelaide, SA 5005, Australia. [Brewe, Dale L.; Vogt, Stefan] Argonne Natl Lab, APS, Argonne, IL 60439 USA. [Brugger, Joel] S Australian Museum, Adelaide, SA 5000, Australia. RP Reith, F (reprint author), CSIRO Land & Water, Environm Biogeochem, PMB2, Glen Osmond, SA 5064, Australia. EM Frank.Reith@csiro.au RI Reith, Frank/E-5542-2011; Etschmann, Barbara/H-7731-2012; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013; Brugger, Joel/C-7113-2008 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513; Brugger, Joel/0000-0003-1510-5764 FU Advanced Photon Source (APS); Australian Synchrotron (AS) for provision of beamtime; Australian Research Council (ARC); Australian Synchrotron Research Funding Schemes; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors acknowledge the following individuals and institutions for their contributions: Advanced Photon Source (APS), and the Australian Synchrotron (AS) for provision of beamtime, the Australian Research Council (ARC) and the Australian Synchrotron Research Funding Schemes for funding this project; CSIRO Land and Water for the use of the microbial ecology laboratory; L. Green and A. Netting at Adelaide Microscopy for their assistance with the (FIB)-SEM and LA-ICP-MS. Use of the APS was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This forms TRaX Record 138. NR 58 TC 12 Z9 12 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 APR 1 PY 2011 VL 75 IS 7 BP 1942 EP 1956 DI 10.1016/j.gca.2011.01.014 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 737TD UT WOS:000288590200018 ER PT J AU Tian, XB Zhang, JL Si, SK Wang, JB Chen, Y Zhang, ZJ AF Tian, Xiaobo Zhang, Jianli Si, Shaokun Wang, Jingbo Chen, Yun Zhang, Zhongjie TI SKS splitting measurements with horizontal component misalignment SO GEOPHYSICAL JOURNAL INTERNATIONAL LA English DT Article DE Broad-band seismometers; Body waves; Seismic anisotropy; Computational seismology ID MANTLE FLOW BENEATH; SEISMIC ANISOTROPY; CHINA MAINLAND; WAVE; DEFORMATION; STATIONS; EARTH; ZONE AB The measurement of SKS splitting parameters is widely used for the study of deformation in the upper mantle, but the misalignment of the station horizontal components, for example misorientation of the sensors, may result in false measurements. In this paper, we suggest that the splitting analysis should be repeated with different assumed angles of misalignment. Two criteria can be applied to correct the measurement of the SKS splitting parameters: (1) the horizontal rotating angle should produce the global minimum transverse energy, as determined using the least transverse energy method; (2) there should be consistent results between the least transverse energy method and the minimum eigenvalue method. Model tests show that the method is suitable for complex anisotropy models, such as two-layer anisotropy. C1 [Tian, Xiaobo; Zhang, Jianli; Si, Shaokun; Chen, Yun; Zhang, Zhongjie] Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China. [Wang, Jingbo] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Tian, XB (reprint author), Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China. EM txbgeophysics@sohu.com FU Chinese National Natural Science Foundation [40974025, 40721003]; National Key Project [2008ZX05008-006] FX The IRIS Data Centre kindly provided us with seismogram data. We thank Aimin Du for providing constructive suggestions. Constructive comments are due to Stephen Gao, an anonymous reviewer, and editor Jun Korenaga. This research is supported by grants from the Chinese National Natural Science Foundation (Nos. 40974025 to X. Tian and 40721003 to Z. Zhang) and National Key Project 2008ZX05008-006 to ZZ. All figures were made by using the Generic Mapping Tools software package (Wessel & Smith 1998). NR 19 TC 22 Z9 26 U1 0 U2 11 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0956-540X EI 1365-246X J9 GEOPHYS J INT JI Geophys. J. Int. PD APR PY 2011 VL 185 IS 1 BP 329 EP 340 DI 10.1111/j.1365-246X.2011.04936.x PG 12 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 735YA UT WOS:000288455500024 ER PT J AU Taylor, KM Procopio, MJ Young, CJ Meyer, FG AF Taylor, Kye M. Procopio, Michael J. Young, Christopher J. Meyer, Francois G. TI Estimation of arrival times from seismic waves: a manifold-based approach SO GEOPHYSICAL JOURNAL INTERNATIONAL LA English DT Article DE Time-series analysis; Seismic monitoring and test-ban treaty verifications; Statistical seismology ID DETERMINISTIC NONLINEAR PROCESSES; SINGULAR SPECTRUM ANALYSIS; PHASE PICKING; VOLCANIC TREMOR; SERIES; DYNAMICS; IDENTIFICATION; REPRESENTATION; REDUCTION; LAPLACIAN AB We propose a new method to analyse seismic time-series and estimate the arrival times of seismic waves. Our approach combines two ingredients: the time-series are first lifted into a high-dimensional space using time-delay embedding; the resulting phase space is then parametrized using a non-linear method based on the eigenvectors of the graph Laplacian. We validate our approach using a data set of seismic events that occurred in Idaho, Montana, Wyoming and Utah between 2005 and 2006. Our approach outperforms methods based on singular-spectrum analysis, wavelet analysis and short-term average/long-term average (STA/LTA). C1 [Taylor, Kye M.] Univ Colorado, Dept Math Appl, Boulder, CO 80309 USA. [Procopio, Michael J.; Young, Christopher J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Meyer, Francois G.] Univ Colorado, Dept Elect Engn, Boulder, CO 80309 USA. RP Taylor, KM (reprint author), Univ Colorado, Dept Math Appl, Boulder, CO 80309 USA. EM fmeyer@colorado.edu RI Meyer, Francois/E-3788-2010 OI Meyer, Francois/0000-0002-1529-3796 FU Sandia National Laboratories; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported through a contract with Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. NR 66 TC 9 Z9 9 U1 0 U2 2 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 APR PY 2011 VL 185 IS 1 BP 435 EP 452 DI 10.1111/j.1365-246X.2011.04947.x PG 18 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 735YA UT WOS:000288455500030 ER PT J AU Edmiston, JK Barton, NR Bernier, JV Johnson, GC Steigmann, DJ AF Edmiston, John K. Barton, Nathan R. Bernier, Joel V. Johnson, George C. Steigmann, David J. TI Precision of lattice strain and orientation measurements using high-energy monochromatic X-ray diffraction SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article DE measurement uncertainties; crystal lattice deformation; strain; orientation; high energy; X-ray diffraction ID POLYCRYSTALLINE MATERIALS; SINGLE-GRAIN; DEFORMATION; STRESSES; ROTATION; TENSOR; BULK AB A systematic framework for estimating the uncertainty associated with measurements of finite stretch and orientation of a crystalline lattice using monochromatic X-ray diffraction is presented. A hierarchical method is implemented, in which uncertainties in the locations of diffraction peaks are communicated to the lattice stretch and rotation parameters by using the classical method of weighted least squares. This enables the uncertainty of the lattice stretch and rotation parameters to be estimated from a single full rotation scan. This method is applied to diffraction data obtained from a ruby single crystal as an idealized case for validation, and an example application is demonstrated by analyzing a strained and plastically deformed polycrystalline titanium alloy, beta 21S. For the ruby single crystal, it was possible to attain average uncertainties for lattice orientation and strain that were found to be comparable to standard statistical analysis of repeated measurements. For the titanium alloy, a single grain was analyzed, and a precision of 0.03 degrees for lattice orientation and 100-250 x 10-6 for lattice strain components was obtained. The basic framework of the uncertainty analysis is generally applicable, although specific results are unique to monochromatic X-ray diffraction experiments. C1 [Edmiston, John K.; Johnson, George C.; Steigmann, David J.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Barton, Nathan R.; Bernier, Joel V.] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Edmiston, JK (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. EM jedmiston@berkeley.edu RI Edmiston, John/D-7898-2015 FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344 (LLNL-JRNL-457412)]; LDRD [10-ERD-053]; agency of the United States government FX This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344 (LLNL-JRNL-457412). We would like to thank Professor Matt Miller and Christos Efstathiou from Cornell University, and Ulrich Lienert from Argonne National Laboratory for providing us with the titanium alloy data. We would also like to thank Ulrich Lienert for assistance in carrying out the ruby experiments. The experiments and overall effort at LLNL are funded by the LDRD program (10-ERD-053). JKE is supported by the Lawrence Scholar Program. This document was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor Lawrence Livermore National Security, LLC, nor any of their employees makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process or service by trade name, trademark, manufacturer or otherwise does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States government or Lawrence Livermore National Security, LLC. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or Lawrence Livermore National Security, LLC, and shall not be used for advertising or product endorsement purposes. NR 31 TC 19 Z9 19 U1 0 U2 10 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 APR PY 2011 VL 44 BP 299 EP 312 DI 10.1107/S0021889811002123 PN 2 PG 14 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 739YQ UT WOS:000288758500006 ER PT J AU Page, K Hood, TC Proffen, T Neder, RB AF Page, Katharine Hood, Taylor C. Proffen, Thomas Neder, Reinhard B. TI Building and refining complete nanoparticle structures with total scattering data SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article DE nanoparticles; total scattering data; whole-particle modeling; pair distribution functions ID PAIR DISTRIBUTION FUNCTION; DIFFRACTION DATA; SHAPE CONTROL; PARTICLES; NANOCRYSTALS; CDS AB High-energy X-ray and spallation neutron total scattering data provide information about each pair of atoms in a nanoparticle sample, allowing for quantitative whole-particle structural modeling based on pair distribution function analysis. The realization of this capability has been hindered by a lack of versatile tools for describing complex finite structures. Here, the implementation of whole-particle refinement for complete nanoparticle systems is described within two programs, DISCUS and DIFFEV, and the diverse capabilities they present are demonstrated. The build-up of internal atomic structure (including defects, chemical ordering and other types of disorder), and nanoparticle size, shape and architecture (including core-shell structures, surface relaxation and ligand capping), are demonstrated using the program DISCUS. The structure refinement of a complete nanoparticle system (4 nm Au particles with organic capping ligands at the surface), based on neutron pair distribution function data, is demonstrated using DIFFEV, a program using a differential evolutionary algorithm to generate parameter values. These methods are a valuable addition to other probes appropriate for nanomaterials, adaptable to a diverse and complex set of materials systems, and extendable to additional data-set types. C1 [Page, Katharine; Hood, Taylor C.; Proffen, Thomas] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, LANSCE LC, Los Alamos, NM 87545 USA. [Neder, Reinhard B.] Univ Erlangen Nurnberg, Inst Phys & Condensed Matter, D-91058 Erlangen, Germany. RP Page, K (reprint author), Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, LANSCE LC, MS H805, Los Alamos, NM 87545 USA. EM kpage@lanl.gov; neder@krist.uni-erlangen.de RI Page, Katharine/C-9726-2009; Lujan Center, LANL/G-4896-2012; Neder, Reinhard/D-9877-2013; Proffen, Thomas/B-3585-2009 OI Page, Katharine/0000-0002-9071-3383; Neder, Reinhard/0000-0003-2592-2207; Proffen, Thomas/0000-0002-1408-6031 FU US DOE Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX This work has benefited from the use of the NPDF beamline at the Lujan Center at Los Alamos Neutron Science Center, funded by the US 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 authors thank R. Seshadri for the Au nanoparticle sample used to demonstrate DISCUS and DIFFEV in this paper. NR 35 TC 32 Z9 32 U1 8 U2 59 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 APR PY 2011 VL 44 BP 327 EP 336 DI 10.1107/S0021889811001968 PN 2 PG 10 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 739YQ UT WOS:000288758500009 ER PT J AU Zikovsky, J Peterson, PF Wang, XPP Frost, M Hoffmann, C AF Zikovsky, Janik Peterson, Peter F. Wang, Xiaoping P. Frost, Matthew Hoffmann, Christina TI CrystalPlan: an experiment-planning tool for crystallography SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article DE CrystalPlan; X-ray scattering; neutron scattering; experiment planning AB Beam time at large user-program-based X-ray and neutron scattering facilities is in high demand and always at a premium. CrystalPlan, a highly efficient experiment-planning software, has been developed to maximize the use of available beam time per sample per experiment. This program can calculate and optimize the data coverage of a crystal in reciprocal space in a single-crystal diffraction time-of-flight experiment. CrystalPlan can help a user build an experiment plan that will acquire the most unique data possible, with sufficient coverage but limited redundancy, therefore increasing scientific productivity. A user-friendly graphical user interface, including a three-dimensional viewer, an automated coverage optimizer and an option to reorient the crystal for the measurement of selected hkl reflections on specific detector positions, are among its useful features. A sample use case of the program with the TOPAZ beamline at the Spallation Neutron Source will be presented. C1 [Zikovsky, Janik; Peterson, Peter F.; Wang, Xiaoping P.; Frost, Matthew; Hoffmann, Christina] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. RP Zikovsky, J (reprint author), Oak Ridge Natl Lab, Spallat Neutron Source, POB 2008,MS 6477, Oak Ridge, TN 37831 USA. EM zikovskyjl@ornl.gov RI Wang, Xiaoping/E-8050-2012; Peterson, Peter/L-2496-2013; hoffmann, christina/D-2292-2016; OI Wang, Xiaoping/0000-0001-7143-8112; Peterson, Peter/0000-0002-1353-0348; hoffmann, christina/0000-0002-7222-5845; Frost, Matthew/0000-0001-6821-170X FU UT Battelle, LLC for the US Department of Energy, Office of Science [DE-AC05-00OR22725] FX This research was supported by UT Battelle, LLC, under contract No. DE-AC05-00OR22725 for the US Department of Energy, Office of Science. NR 15 TC 21 Z9 21 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 APR PY 2011 VL 44 BP 418 EP 423 DI 10.1107/S0021889811007102 PN 2 PG 6 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 739YQ UT WOS:000288758500021 ER PT J AU Wall, AJ Heaney, PJ Mathur, R Post, JE Hanson, JC Eng, PJ AF Wall, Andrew J. Heaney, Peter J. Mathur, Ryan Post, Jeffrey E. Hanson, Jonathan C. Eng, Peter J. TI A flow-through reaction cell that couples time-resolved X-ray diffraction with stable isotope analysis SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article DE powder X-ray diffraction; synchrotron; time-resolved; Cu isotopes; copper sulfides; chalcocite; covellite; flow-through reaction cells ID NICKEL LATERITE ORES; ION-EXCHANGE; POWDER DIFFRACTION; FRACTIONATION; CU; ENVIRONMENT; MECHANISM; KINETICS; ORIGIN; COPPER AB A non-metallic flow-through reaction cell is described, designed for in situ time-resolved X-ray diffraction coupled with stable isotope analysis. The experimental setup allows the correlation of Cu isotope fractionation with changes in crystal structure during copper sulfide dissolution. This flow-through cell can be applied to many classes of fluid-mineral reactions that involve dissolution or ion exchange. C1 [Wall, Andrew J.; Heaney, Peter J.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA. [Mathur, Ryan] Juniata Coll, Dept Geol, Huntingdon, PA 16652 USA. [Post, Jeffrey E.] Smithsonian NMNH, Dept Mineral Sci, Washington, DC 20013 USA. [Hanson, Jonathan C.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Eng, Peter J.] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA. RP Wall, AJ (reprint author), Penn State Univ, Dept Geosci, 542 Deike Bldg, University Pk, PA 16802 USA. EM awall@psu.edu RI mathur, ryan/A-5278-2010 FU NSF [EAR07-45374]; Center for Environmental Kinetics Analysis (CEKA); DOE-sponsored Environmental Molecular Science Institute [NSF CHE04-31328]; Mineralogical Society of America; Geological Society of America; US Department of Energy, Division of Materials Sciences and Division of Chemical Sciences [DE-AC02-98CH10886]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX Funding for this research was provided by NSF grant No. EAR07-45374, the Center for Environmental Kinetics Analysis (CEKA), an NSF- and DOE-sponsored Environmental Molecular Science Institute (NSF CHE04-31328), the Edward H. Kraus Crystallographic Research Fund of the Mineralogical Society of America, and a Geological Society of America Graduate Student Research Grant. This research was carried out at two synchrotron sources, the National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by the US Department of Energy, Division of Materials Sciences and Division of Chemical Sciences, under contract No. DE-AC02-98CH10886, and the Advanced Photon Source at Argonne National Laboratory, which is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract No. DE-AC02-06CH11357. NR 23 TC 12 Z9 12 U1 1 U2 18 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 APR PY 2011 VL 44 BP 429 EP 432 DI 10.1107/S0021889811000525 PN 2 PG 4 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 739YQ UT WOS:000288758500023 ER PT J AU Wheeler, JW Shull, PB Besier, TF AF Wheeler, Jason W. Shull, Pete B. Besier, Thor F. TI Real-Time Knee Adduction Moment Feedback for Gait Retraining Through Visual and Tactile Displays SO JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article DE gait retraining; osteoarthritis; knee adduction moment; real-time feedback ID LATERALLY WEDGED INSOLES; HIGH TIBIAL OSTEOTOMY; OSTEOARTHRITIS REHABILITATION; JOINT MOMENTS; ALIGNMENT; WALKING; ANGLE; INDIVIDUALS; PROGRESSION; DESIGN AB The external knee adduction moment (KAM) measured during gait is an indicator of tibiofemoral joint osteoarthritis progression and various strategies have been proposed to lower it. Gait retraining has been shown to be an effective, noninvasive approach for lowering the KAM. We present a new gait retraining approach in which the KAM is fed back to subjects in real-time during ambulation. A study was conducted in which 16 healthy subjects learned to alter gait patterns to lower the KAM through visual or tactile (vibration) feedback. Participants converged on a comfortable gait in just a few minutes by using the feedback to iterate on various kinematic modifications. All subjects adopted altered gait patterns with lower KAM compared with normal ambulation (average reduction of 20.7%). Tactile and visual feedbacks were equally effective for real-time training, although subjects using tactile feedback took longer to converge on an acceptable gait. This study shows that real-time feedback of the KAM can greatly increase the effectiveness and efficiency of subject-specific gait retraining compared with conventional methods. [DOI: 10.1115/1.4003621] C1 [Wheeler, Jason W.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Shull, Pete B.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA. [Besier, Thor F.] Stanford Univ, Dept Orthopaed Surg, Stanford, CA 94305 USA. RP Wheeler, JW (reprint author), Sandia Natl Labs, POB 5800,Mail Stop 1010, Albuquerque, NM 87185 USA. EM jwwheel@sandia.gov; pshull@stanford.edu; besier@stanford.edu OI Besier, Thor/0000-0003-0818-7554 FU Sandia National Laboratories; King Abdullah University of Science and Technology FX The authors would like to thank Scott Delp and Mark Cutkosky for their input on the study. J. Wheeler was funded by Sandia National Laboratories Doctoral Studies Program. P. Shull was partially funded by the King Abdullah University of Science and Technology. NR 31 TC 35 Z9 35 U1 0 U2 21 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0148-0731 J9 J BIOMECH ENG-T ASME JI J. Biomech. Eng.-Trans. ASME PD APR PY 2011 VL 133 IS 4 AR 041007 DI 10.1115/1.4003621 PG 5 WC Biophysics; Engineering, Biomedical SC Biophysics; Engineering GA 739HU UT WOS:000288706600008 PM 21428681 ER PT J AU Li, Z Jin, Q Huang, C Chen, L Yap, L Conti, PS AF Li, Z. Jin, Q. Huang, C. Chen, L. Yap, L. Conti, P. S. TI Integrin targeted phage as positron emission tomography (PET) agent: potential for breast cancer imaging. SO JOURNAL OF NUCLEAR MEDICINE LA English DT Meeting Abstract C1 [Li, Z.; Huang, C.; Yap, L.; Conti, P. S.] Univ So Calif, Los Angeles, CA USA. [Jin, Q.; Chen, L.] Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC NUCLEAR MEDICINE INC PI RESTON PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA SN 0161-5505 J9 J NUCL MED JI J. Nucl. Med. PD APR 1 PY 2011 VL 52 IS 4 MA 5 BP 662 EP 662 PG 1 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 740OO UT WOS:000288804500035 ER PT J AU Glaeser, RM Typke, D Tiemeijer, PC Pulokas, J Cheng, AC AF Glaeser, Robert M. Typke, Dieter Tiemeijer, Peter C. Pulokas, James Cheng, Anchi TI Precise beam-tilt alignment and collimation are required to minimize the phase error associated with coma in high-resolution cryo-EM SO JOURNAL OF STRUCTURAL BIOLOGY LA English DT Review DE Beam alignment; Coma; Phase error ID PARTICLE ELECTRON CRYOMICROSCOPY; CRYOELECTRON MICROSCOPY; ILLUMINATION; MICROGRAPHS; LEGINON; SYSTEM AB Electron microscopy at a resolution of 0.4 nm or better requires more careful adjustment of the illumination than is the case at a resolution of 0.8 nm. The use of current-axis alignment is not always sufficient, for example, to avoid the introduction of large phase errors, at higher resolution, due to axial coma. In addition, one must also ensure that off-axis coma does not corrupt the data quality at the higher resolution. We particularly emphasize that the standard CTF correction does not account for the phase error associated with coma. We explain the cause of both axial coma and the typically most troublesome component of off-axis coma in terms of the well-known shift of the electron diffraction pattern relative to the optical axis that occurs when the illumination is not parallel to the axis. We review the experimental conditions under which coma causes unacceptably large phase errors, and we discuss steps that can be taken when setting up the conditions of illumination, so as to ensure that neither axial nor off-axis coma is a problem. (C) 2011 Elsevier Inc. All rights reserved. C1 [Glaeser, Robert M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Donner Lab 363B, Div Life Sci, Berkeley, CA 94720 USA. [Tiemeijer, Peter C.] FEI Co, NL-5600 KA Eindhoven, Netherlands. [Pulokas, James; Cheng, Anchi] Scripps Res Inst, La Jolla, CA 92037 USA. RP Glaeser, RM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Donner Lab 363B, Div Life Sci, Berkeley, CA 94720 USA. EM rmglaeser@lbl.gov FU NIH [GM083039, RR175732]; US Department of Energy [DE-AC02-05CH11231] FX We thank Dr. Bridget Carragher and Dr. Clint Potter for encouraging the preliminary experiments that ultimately led to writing this review. This work has been supported in part by NIH Grant GM083039, NIH Grant RR175732, and US Department of Energy contract DE-AC02-05CH11231. NR 27 TC 25 Z9 25 U1 1 U2 10 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1047-8477 J9 J STRUCT BIOL JI J. Struct. Biol. PD APR PY 2011 VL 174 IS 1 BP 1 EP 10 DI 10.1016/j.jsb.2010.12.005 PG 10 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 738LA UT WOS:000288640100001 PM 21182964 ER PT J AU Pokkuluri, PR Londer, YY Duke, NEC Pessanha, M Yang, X Orshonsky, V Orshonsky, L Erickson, J Zagyanskiy, Y Salgueiro, CA Schiffer, M AF Pokkuluri, P. R. Londer, Y. Y. Duke, N. E. C. Pessanha, M. Yang, X. Orshonsky, V. Orshonsky, L. Erickson, J. Zagyanskiy, Y. Salgueiro, C. A. Schiffer, M. TI Structure of a novel dodecaheme cytochrome c from Geobacter sulfurreducens reveals an extended 12 nm protein with interacting hemes SO JOURNAL OF STRUCTURAL BIOLOGY LA English DT Article DE Dodecaheme cytochrome c; Multiheme cytochrome c; Heme-stacking; Electron transfer; Fe(III) reduction; Geobacter sulfurreducens ID ESCHERICHIA-COLI; THERMODYNAMIC CHARACTERIZATION; DESULFUROMONAS-ACETOXIDANS; HETEROLOGOUS EXPRESSION; MULTIDOMAIN CYTOCHROME; ANGSTROM RESOLUTION; FE(III) REDUCTION; C(7); RESPIRATION; SYSTEM AB Multiheme cytochromes c are important in electron transfer pathways in reduction of both soluble and insoluble Fe(III) by Geobacter sulfurreducens. We determined the crystal structure at 3.2 angstrom resolution of the first dodecaheme cytochrome c (GSU1996) along with its N-terminal and C-terminal hexaheme fragments at 2.6 and 2.15 angstrom resolution, respectively. The macroscopic reduction potentials of the full-length protein and its fragments were measured. The sequence of GSU1996 can be divided into four c(7)-type domains (A, B, C and D) with homology to triheme cytochromes c(7). In cytochromes c(7) all three hemes are bis-His coordinated, whereas in c(7)-type domains the last heme is His-Met coordinated. The full-length GSU1996 has a 12 nm long crescent shaped structure with the 12 hemes arranged along a polypeptide to form a "nanowire" of hemes; it has a modular structure. Surprisingly, while the C-terminal half of the protein consists of two separate c(7)-type domains (C and D) connected by a small linker, the N-terminal half of the protein has two c(7)-type domains (A and B) that form one structural unit. This is also observed in the AB fragment. There is an unexpected interaction between the hemes at the interface of domains A and B, which form a heme-pair with nearly parallel stacking of their porphyrin rings. The hemes adjacent to each other throughout the protein are within van der Waals distance which enables efficient electron exchange between them. For the first time, the structural details of c(7)-type domains from one multiheme protein were compared. (C) 2010 Elsevier Inc. All rights reserved. C1 [Pokkuluri, P. R.; Londer, Y. Y.; Duke, N. E. C.; Yang, X.; Orshonsky, V.; Orshonsky, L.; Erickson, J.; Schiffer, M.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Pessanha, M.; Salgueiro, C. A.] Univ Nova Lisboa, Requimte CQFB, Dept Quim, Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal. RP Pokkuluri, PR (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM rajp@anl.gov; mschiffer@anl.gov RI Salgueiro, Carlos/A-4522-2013; Caparica, cqfb_staff/H-2611-2013; REQUIMTE, AL/H-9106-2013; Chaves, Pedro/K-1288-2013; REQUIMTE, SMB/M-5694-2013; REQUIMTE, UCIBIO/N-9846-2013 OI Salgueiro, Carlos/0000-0003-1136-809X; FU US Department of Energy's Office of Science, Biological and Environmental Research [DE-AC02-06CH11357]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; US Department of Energy's Office of Biological and Environmental Research; US Department of Energy, Office of Science, Office of Basic Energy Sciences; Fundacao para a Ciencia e Tecnologia (Portugal) [PTDC/BIA-PRO/74498/2006, PTDC/QUI/70182/2006] FX The work at Argonne National Laboratory was supported by the US Department of Energy's Office of Science, Biological and Environmental Research GTL program under contract No. DE-AC02-06CH11357 and by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357. This work is a part of collaboration with Prof. D. R. Lovley (University of Massachusetts. Amherst) under the Genomics:GTL project. Use of the Structural Biology Center beam lines was supported by the US Department of Energy's Office of Biological and Environmental Research. Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. The work at UNL, Lisbon is supported by Grants PTDC/BIA-PRO/74498/2006 and PTDC/QUI/70182/2006 from Fundacao para a Ciencia e Tecnologia (Portugal). The authors wish to thank Dr. Z. Dauter for help with determining the heavy atom sub-structure of GSU1996, and Drs. D.K. Hanson and R. Wilton for critical reading of the manuscript. NR 39 TC 24 Z9 24 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 1047-8477 J9 J STRUCT BIOL JI J. Struct. Biol. PD APR PY 2011 VL 174 IS 1 BP 223 EP 233 DI 10.1016/j.jsb.2010.11.022 PG 11 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 738LA UT WOS:000288640100026 PM 21130881 ER PT J AU Cosimbescu, L Polikarpov, E Swensen, JS Darsell, JT Padmaperuma, AB AF Cosimbescu, Lelia Polikarpov, Evgueni Swensen, James S. Darsell, Jens T. Padmaperuma, Asanga B. TI Hole-rich host materials for blue-phosphorescent OLEDs SO JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY LA English DT Article DE High-efficiency host; wide-bandgap host; blue phosphorescence; phosphine oxide ID LIGHT-EMITTING-DIODES; CHARGE; DEVICES AB Stable and efficient organic light-emitting devices (OLEDs) are an integral part of the future of lighting and displays. The hole accumulation at the hole-transport/emissive-layer interface in such devices is considered to be a major pathway for degradation and efficiency loss.(1) Here, the design and synthesis of two charge-transporting host materials, based on the phosphine oxide (PO) moiety, engineered to improve hole transport of the emissive layer, will be reported. The compounds are an extension of a molecular design strategy which incorporates a hole-transporting moiety and an electron-transporting moiety. These materials were designed with two hole-transport moieties (HTms) to further improve hole transport, compared to the first-generation host materials that were designed with one hole-transport functional group. The triplet exciton energy was maintained at a level greater than that of FIrpic (2.7 eV) to prevent exciton quenching. The E(HOMO) and E(LUMO) of the two classes of molecules (i.e., 1 HTm vs. 2 HTms) were similar; however, their device performance varied greatly. Emission zone experiments were conducted to further characterize the difference in charge transport between the molecules. C1 [Cosimbescu, Lelia; Polikarpov, Evgueni; Swensen, James S.; Darsell, Jens T.; Padmaperuma, Asanga B.] Pacific NW Natl Lab, Richland, WA 99354 USA. RP Cosimbescu, L (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA. EM asanga.padmaperuma@pnl.gov FU U.S. Department of Energy, within the Building Technologies Program (BT) [M68004043]; Department of Energy's Office of Biological and Environmental Research; U.S. Department of Energy; DOE [DE-AC06-76RLO 1830] FX This work was funded by the Solid Sate Lighting Program of the U.S. Department of Energy, within the Building Technologies Program (BT), Award No. M68004043 and managed by the National Energy Technology Laboratory (NETL). We thank Dr. Alan Joly for the assistance in collecting low-temperature phosphorescence spectra. A portion of the research described in the paper was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). Computations were carried out using "NWChem, A Computational Chemistry Package for Parallel Computers, Version 5.1" (2007), developed at the High Performance Computational Chemistry Group, Pacific Northwest National Laboratory, Richland, WA 99352-0999, USA. Pacific Northwest National Laboratory (PNNL) "Extensible Computational Chemistry Environment (ECCE), A Problem Solving Environment for Computational Chemistry, Software Version 6.0" (2009), as developed and distributed by Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA, and funded by the U.S. Department of Energy, was used to obtain some of these results. PNNL is operated by Battelle Memorial Institute for the DOE, under contract DE-AC06-76RLO 1830. NR 15 TC 1 Z9 1 U1 1 U2 11 PU SOC INFORMATION DISPLAY PI CAMPBELL PA 1475 S BASCOM AVE, STE 114, CAMPBELL, CA 95008 USA SN 1071-0922 J9 J SOC INF DISPLAY JI J. Soc. Inf. Disp. PD APR PY 2011 VL 19 IS 4 BP 353 EP 359 DI 10.1889/JSID19.4.353 PG 7 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics; Physics, Applied SC Engineering; Materials Science; Optics; Physics GA 741FO UT WOS:000288849100009 ER PT J AU Datta, BN Sokolov, V AF Datta, Biswa Nath Sokolov, Vadim TI A solution of the affine quadratic inverse eigenvalue problem SO LINEAR ALGEBRA AND ITS APPLICATIONS LA English DT Article; Proceedings Paper CT Conference on Linear and Numerical Linear Algebra - Theory, Methods and Applications CY AUG 12-14, 2009 CL Northern Illinois Univ (NIU), IL SP Univ Minnesota, Inst Math & Applications (IMA) HO Northern Illinois Univ (NIU) DE Affine quadratic inverse eigenvalue problem; Newton's method; Alternating projection method ID PARTIAL POLE ASSIGNMENT; VIBRATING SYSTEMS; ORTHOGONALITY; PENCIL AB The quadratic inverse eigenvalue problem (QIEP) is to find the three matrices M, C, and K, given a set of numbers, closed under complex conjugations, such that these numbers become the eigenvalues of the quadratic pencil P(lambda) = lambda(2)M + lambda C + K. The affine inverse quadratic eigenvalue problem (AQIEP) is the QIEP with an additional constraint that the coefficient matrices belong to an affine family, that is, these matrices are linear combinations of sub-structured matrices. An affine family of matrices very often arise in vibration engineering modeling and analysis. Research on QIEP and AQIEP are still at developing stage. In this paper, we propose three methods and the associated mathematical theories for solving AQIEP: A Newton method, an alternating projections method, and a hybrid method combining the two. Validity of these methods are illustrated with results on numerical experiments on a spring-mass problem and comparisons are made with these three methods amongst themselves and with another Newton method developed by Elhay and Ram (2002) [12]. The results of our experiments show that the hybrid method takes much smaller number of iterations and converges faster than any of these methods. (C) 2010 Elsevier Inc. All rights reserved. C1 [Sokolov, Vadim] Argonne Natl Lab, Div Energy Syst, Transportat Res & Anal Comp Ctr, W Chicago, IL 60185 USA. [Datta, Biswa Nath] No Illinois Univ, Dept Math Sci, De Kalb, IL 60115 USA. RP Sokolov, V (reprint author), Argonne Natl Lab, Div Energy Syst, Transportat Res & Anal Comp Ctr, W Chicago, IL 60185 USA. EM dattab@math.niu.edu; vsokolov@anl.gov NR 27 TC 5 Z9 6 U1 0 U2 5 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0024-3795 J9 LINEAR ALGEBRA APPL JI Linear Alg. Appl. PD APR 1 PY 2011 VL 434 IS 7 SI SI BP 1745 EP 1760 DI 10.1016/j.laa.2010.09.047 PG 16 WC Mathematics, Applied; Mathematics SC Mathematics GA 738HX UT WOS:000288632000015 ER PT J AU Tsetseris, L Pantelides, ST AF Tsetseris, L. Pantelides, S. T. TI Defect formation and annihilation at Ge-GeO2 interfaces SO MICROELECTRONIC ENGINEERING LA English DT Article; Proceedings Paper CT EMRS Spring Meeting on Post-Si-CMOS Electronic Devices - The Role of Ge and III-V Materials CY JUN 07-11, 2010 CL Strasbourg, FRANCE SP SAFC, Aixtron, IBM, EMRS DE ab initio; Defects; Oxygen; Hydrogen; Fluorine; Interface; Germanium; Silicon ID AUGMENTED-WAVE METHOD; SI-SIO2 INTERFACE; MOS DEVICES; HYDROGEN; MOSFETS; MICROELECTRONICS; PASSIVATION; RELIABILITY; MIGRATION AB The stability and dynamics of defects at Ge-GeO2 interfaces are key factors for the operation of Ge-based devices. Here we present the results of extensive first-principles calculations on creation mechanisms and transformations of defects at the Ge-GeO2 boundary. We find that, similar to the case of Ge P-b centers, reactions between interfacial divalent Ge atoms and hydrogen or fluorine do not lead to passivation of the Ge dangling bonds. Moreover, the insertion of extra oxygen atoms in the vicinity of P-b and divalent Ge defects can lead to new defect complexes. The results reveal key differences with respect to the traditional Si-SiO2 electronic system. (C) 2010 Elsevier B.V. All rights reserved. C1 [Tsetseris, L.] Natl Tech Univ Athens, Dept Phys, GR-15780 Athens, Greece. [Tsetseris, L.; Pantelides, S. T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Pantelides, S. T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Tsetseris, L (reprint author), Natl Tech Univ Athens, Dept Phys, Zografou Campus, GR-15780 Athens, Greece. EM leont@mail.ntua.gr NR 29 TC 4 Z9 4 U1 0 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-9317 J9 MICROELECTRON ENG JI Microelectron. Eng. PD APR PY 2011 VL 88 IS 4 BP 395 EP 398 DI 10.1016/j.mee.2010.08.027 PG 4 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Optics; Physics, Applied SC Engineering; Science & Technology - Other Topics; Optics; Physics GA 736VW UT WOS:000288524100018 ER PT J AU Golias, E Tsetseris, L Dimoulas, A Pantelides, ST AF Golias, E. Tsetseris, L. Dimoulas, A. Pantelides, S. T. TI Ge volatilization products in high-k gate dielectrics SO MICROELECTRONIC ENGINEERING LA English DT Article; Proceedings Paper CT EMRS 2010 Spring Meeting on Post-Si-CMOS Electronic Devices - The Role of Ge and III-V Materials CY JUN 07-11, 2010 CL Strasbourg, FRANCE SP SAFC, Aixtron, IBM DE Ab initio; Defects; Impurities; Germanium; Traps; Leakage ID METAL-OXIDE-SEMICONDUCTOR; AUGMENTED-WAVE METHOD; HYDROGEN; HFO2; RELIABILITY; SUPPRESSION; INTERFACE; GERMANIUM; DEVICES AB GeO molecules are often emitted by Ge substrates under high-temperature annealing and, in the case of gate stacks, they diffuse through high-k oxides. Here we use first-principles quantum-mechanical calculations to probe the stability of these impurities in La(2)O(3) and HfO(2) and their effect on the electronic properties of the host systems. We find that the GeO species introduce several different levels inside the energy band gaps of La(2)O(3) and HfO(2). As a result, the impurities may act as charge carrier traps. Hydrogenation of the GeO defects modifies the position and numbers of gap states, but does not eliminate the carrier trap levels completely. The results suggest a possible role of Ge volatilization in enhancing leakage currents and degradation in high-k gate stacks of Ge-based devices. (C) 2010 Elsevier B.V. All rights reserved. C1 [Golias, E.; Tsetseris, L.] Natl Tech Univ Athens, Dept Phys, GR-15780 Athens, Greece. [Golias, E.; Dimoulas, A.] NCSR Demokritos, MBE Lab, GR-15310 Athens, Greece. [Tsetseris, L.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Pantelides, S. T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Tsetseris, L (reprint author), Natl Tech Univ Athens, Dept Phys, Zografou Campus, GR-15780 Athens, Greece. EM leont@mail.ntua.gr RI Golias, Evangelos/Q-1818-2016 OI Golias, Evangelos/0000-0003-1483-1959 NR 31 TC 11 Z9 11 U1 0 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-9317 J9 MICROELECTRON ENG JI Microelectron. Eng. PD APR PY 2011 VL 88 IS 4 BP 427 EP 430 DI 10.1016/j.mee.2010.07.041 PG 4 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Optics; Physics, Applied SC Engineering; Science & Technology - Other Topics; Optics; Physics GA 736VW UT WOS:000288524100026 ER PT J AU Canfield, PC AF Canfield, Paul C. TI Still alluring and hard to predict at 100 SO NATURE MATERIALS LA English DT Editorial Material ID MAGNESIUM DIBORIDE; SUPERCONDUCTIVITY C1 Iowa State Univ, Ames Lab, Dept Energys, Ames, IA 50011 USA. RP Canfield, PC (reprint author), Iowa State Univ, Ames Lab, Dept Energys, Ames, IA 50011 USA. EM canfield@ameslab.gov RI Canfield, Paul/H-2698-2014 NR 12 TC 12 Z9 12 U1 1 U2 11 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1476-1122 J9 NAT MATER JI Nat. Mater. PD APR PY 2011 VL 10 IS 4 BP 259 EP 261 DI 10.1038/nmat2990 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA 739UU UT WOS:000288744700004 PM 21430665 ER PT J AU Jeon, KJ Moon, HR Ruminski, AM Jiang, B Kisielowski, C Bardhan, R Urban, JJ AF Jeon, Ki-Joon Moon, Hoi Ri Ruminski, Anne M. Jiang, Bin Kisielowski, Christian Bardhan, Rizia Urban, Jeffrey J. TI Air-stable magnesium nanocomposites provide rapid and high-capacity hydrogen storage without using heavy-metal catalysts SO NATURE MATERIALS LA English DT Article ID NANOPARTICLES; KINETICS; MICROSTRUCTURE; NANOCRYSTALS; POLYMERS AB Hydrogen is a promising alternative energy carrier that can potentially facilitate the transition from fossil fuels to sources of clean energy because of its prominent advantages such as high energy density (142 MJ kg(-1); ref. 1), great variety of potential sources (for example water, biomass, organic matter), light weight, and low environmental impact (water is the sole combustion product). However, there remains a challenge to produce a material capable of simultaneously optimizing two conflicting criteria-absorbing hydrogen strongly enough to form a stable thermodynamic state, but weakly enough to release it on-demand with a small temperature rise. Many materials under development, including metal-organic frameworks, nanoporous polymers, and other carbon-based materials, physisorb only a small amount of hydrogen (typically 1-2 wt%) at room temperature. Metal hydrides were traditionally thought to be unsuitable materials because of their high bond formation enthalpies (for example MgH2 has a Delta H-f similar to 75 kJ mol(-1)), thus requiring unacceptably high release temperatures resulting in low energy efficiency. However, recent theoretical calculations and metal-catalysed thin-film studies have shown that microstructuring of these materials can enhance the kinetics by decreasing diffusion path lengths for hydrogen and decreasing the required thickness of the poorly permeable hydride layer that forms during absorption. Here, we report the synthesis of an air-stable composite material that consists of metallic Mg nanocrystals (NCs) in a gas-barrier polymer matrix that enables both the storage of a high density of hydrogen (up to 6 wt% of Mg, 4 wt% for the composite) and rapid kinetics (loading in < 30 min at 200 degrees C). Moreover, nanostructuring of the Mg provides rapid storage kinetics without using expensive heavy-metal catalysts. C1 [Moon, Hoi Ri; Ruminski, Anne M.; Bardhan, Rizia; Urban, Jeffrey J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Div Mat Sci, Berkeley, CA 94720 USA. [Jeon, Ki-Joon] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Jiang, Bin] FEI Co, Hillsboro, OR 97124 USA. [Kisielowski, Christian] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy & Helios SERC, Berkeley, CA 94720 USA. RP Urban, JJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Div Mat Sci, Berkeley, CA 94720 USA. EM jjurban@lbl.gov RI bardhan, rizia/A-9393-2010; Moon, Hoi Ri /E-5892-2010; Bardhan, Rizia/B-4674-2014 FU Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; US Department of Energy; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-05CH11231] FX Work at the Molecular Foundry and the National Center for Electron Microscopy was supported by the Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. J.J.U., K-J.J., H.R.M., and R.B. are supported under the US Department of Energy Hydrogen Storage Program. A.M.R. is supported as part of the Center for Nanoscale Control of Geologic CO2, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-05CH11231. We thank J. R. Long and T. J. Richardson for critical discussions and exchange, and appreciate the support of S. Mao for PCI measurement. NR 29 TC 221 Z9 228 U1 23 U2 252 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1476-1122 J9 NAT MATER JI Nat. Mater. PD APR PY 2011 VL 10 IS 4 BP 286 EP 290 DI 10.1038/NMAT2978 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA 739UU UT WOS:000288744700018 PM 21399630 ER PT J AU Peled, ES Isacoff, EY AF Peled, Einat S. Isacoff, Ehud Y. TI Optical quantal analysis of synaptic transmission in wild-type and rab3-mutant Drosophila motor axons SO NATURE NEUROSCIENCE LA English DT Article ID HIPPOCAMPAL SYNAPSES; TRANSMITTER RELEASE; NEUROTRANSMITTER RELEASE; SINGLE SYNAPSES; IN-VIVO; PROBABILITY; PLASTICITY; RAB3; TERMINALS; LARVAE AB Synaptic transmission from a neuron to its target cells occurs via neurotransmitter release from dozens to thousands of presynaptic release sites whose strength and plasticity can vary considerably. We report an in vivo imaging method that monitors real-time synaptic transmission simultaneously at many release sites with quantal resolution. We applied this method to the model glutamatergic system of the Drosophila melanogaster larval neuromuscular junction. We find that, under basal conditions, about half of release sites have a very low release probability, but these are interspersed with sites with as much as a 50-fold higher probability. Paired-pulse stimulation depresses high-probability sites, facilitates low-probability sites, and recruits previously silent sites. Mutation of the small GTPase Rab3 substantially increases release probability but still leaves about half of the sites silent. Our findings suggest that basal synaptic strength and short-term plasticity are regulated at the level of release probability at individual sites. C1 [Peled, Einat S.; Isacoff, Ehud Y.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Isacoff, Ehud Y.] Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. [Isacoff, Ehud Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Isacoff, EY (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA. EM ehud@berkeley.edu FU US National Science Foundation [FIBR 0623527] FX We thank R. S. Zucker for helpful discussions, G. Kauwe and G. Agarwal for help generating the SynapGCaMP2 fly line, H. L. Aaron for advice on imaging and J.A. Min for help with testing fly strains. We also thank A. DiAntonio for gifts of fly strains and for the Rab3 antibody. This work was supported by US National Science Foundation grant FIBR 0623527. NR 43 TC 46 Z9 47 U1 0 U2 6 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1097-6256 J9 NAT NEUROSCI JI Nat. Neurosci. PD APR PY 2011 VL 14 IS 4 BP 519 EP U162 DI 10.1038/nn.2767 PG 10 WC Neurosciences SC Neurosciences & Neurology GA 741FQ UT WOS:000288849400024 PM 21378971 ER PT J AU Kerekes, RA Martins, RAP Davis, D Karakaya, M Gleason, S Dyer, MA AF Kerekes, Ryan A. Martins, Rodrigo A. P. Davis, Denise Karakaya, Mahmut Gleason, Shaun Dyer, Michael A. TI Automated Tracing of Horizontal Neuron Processes During Retinal Development SO NEUROCHEMICAL RESEARCH LA English DT Article DE Horizontal retinal neuron; Retinal development; Automated tracing; Segmentation algorithm ID CELL-FATE DETERMINATION; PHOTORECEPTOR DEGENERATIONS; PROLIFERATION AB In the developing mammalian retina, horizontal neurons undergo a dramatic reorganization of their processes shortly after they migrate to their appropriate laminar position. This is an important process because it is now understood that the apical processes are important for establishing the regular mosaic of horizontal cells in the retina and proper reorganization during lamination is required for synaptogenesis with photoreceptors and bipolar neurons. However, this process is difficult to study because the analysis of horizontal neuron anatomy is labor intensive and time-consuming. In this paper, we present a computational method for automatically tracing the three-dimensional (3-D) dendritic structure of horizontal retinal neurons in two-photon laser scanning microscope (TPLSM) imagery. Our method is based on 3-D skeletonization and is thus able to preserve the complex structure of the dendritic arbor of these cells. We demonstrate the effectiveness of our approach by comparing our tracing results against two sets of semi-automated traces over a set of 10 horizontal neurons ranging in age from P1 to P5. We observe an average agreement level of 81% between our automated trace and the manual traces. This automated method will serve as an important starting point for further refinement and optimization. C1 [Kerekes, Ryan A.; Gleason, Shaun] Oak Ridge Natl Lab, Measurement Sci & Syst Engn Div, Oak Ridge, TN 37831 USA. [Martins, Rodrigo A. P.] Univ Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, CCS, BR-21941900 Rio De Janeiro, Brazil. [Davis, Denise; Dyer, Michael A.] St Jude Childrens Hosp, Dept Dev Neurobiol, Memphis, TN 38105 USA. [Karakaya, Mahmut] Univ Tennessee, Dept Comp Sci & Elect Engn, Knoxville, TN 37996 USA. [Dyer, Michael A.] Univ Tennessee, Hlth Sci Ctr, Dept Ophthalmol, Memphis, TN 38105 USA. [Dyer, Michael A.] Johns Hopkins Univ, Sch Med, Howard Hughes Med Inst, Baltimore, MD 21205 USA. RP Kerekes, RA (reprint author), Oak Ridge Natl Lab, Measurement Sci & Syst Engn Div, MS 6075,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM kerekesra@ornl.gov RI Karakaya, Mahmut/C-7155-2017; OI Martins, Rodrigo/0000-0002-8420-6991 FU National Institutes of Health [R01EY018599, R01EY014867]; National Cancer Institute [21765]; American Cancer Society; Pew Charitable Trust; Macular Vision Research Foundation; American Lebanese Syrian Associated Charities FX Supported by grants from the National Institutes of Health (R01EY018599 and R01EY014867); Cancer Center Support CA 21765 from the National Cancer Institute; and grants from the American Cancer Society, the Pew Charitable Trust, Macular Vision Research Foundation and the American Lebanese Syrian Associated Charities. Dr. Dyer is a Howard Hughes Medical Institute Early Career Investigator. NR 22 TC 1 Z9 1 U1 3 U2 3 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0364-3190 J9 NEUROCHEM RES JI Neurochem. Res. PD APR PY 2011 VL 36 IS 4 BP 583 EP 593 DI 10.1007/s11064-010-0390-1 PG 11 WC Biochemistry & Molecular Biology; Neurosciences SC Biochemistry & Molecular Biology; Neurosciences & Neurology GA 738TE UT WOS:000288664400004 PM 21221777 ER PT J AU Ahmed, SN Angstadt, R Aoki, M Asman, B Austin, S Bagby, L Barberis, E Baringer, P Bean, A Bischoff, A Blekman, F Bolton, TA Boswell, C Bowden, M Browning, F Buchholz, D Burdin, S Butler, D Cease, H Choi, S Clark, AR Clutter, J Cooper, A Cooper, WE Corcoran, M de Jong, SJ Demarteau, M Demina, R Desai, S Derylo, G Ellison, J Ermolov, P Fagan, J Fast, J Filthaut, F Foglesong, J Fox, H Galea, CF Gardner, J Genik, RJ Gerber, CE Gershtein, Y Gounder, K Grinstein, S Gu, W Gutierrez, P Haggerty, H Hall, RE Hagopian, S Hance, R Harder, K Heger, P Heinson, AP Heintz, U Hesketh, G Hover, D Howell, J Hrycyk, M Iashvili, I Johnson, M Jostlein, H Juste, A Kahl, W Kajfasz, E Karmanov, D Kesisoglou, S Khanov, A King, J Kleinfelder, S Kowalski, J Krempetz, K Kubantsev, M Kulik, Y Landsberg, G Leflat, A Lehner, F Lipton, R Mao, HS Martin, M Mateski, J Matulik, M McKenna, M Melnitchouk, A Merkin, M Mihalcea, D Milgrome, O Montgomery, HE Moua, S Naumann, NA Nomerotski, A Olis, D O'Neil, DC Garzon, GJOY Parua, N Pawlak, J Petteni, M Quinn, B Rapidis, PA Ratzmann, P Rizatdinova, F Roco, M Rucinski, R Rykalin, V Schellman, H Schmitt, W Sellberg, G Serritella, C Shabalina, E Sidwell, RA Simak, V Smith, E Squires, B Stanton, NR Steinbrueck, G Strandberg, J Strandberg, S Strauss, M Stredde, H Toukhtarov, A Tripathi, SM Trippe, TG Tsybychev, D Utes, M van Gemmeren, P Vaz, M Weber, M Wijngaarden, DA Wish, J Womersley, J Yarema, R Ye, Z Zieminski, A Zimmerman, T Zverev, EG AF Ahmed, S. N. Angstadt, R. Aoki, M. Asman, B. Austin, S. Bagby, L. Barberis, E. Baringer, P. Bean, A. Bischoff, A. Blekman, F. Bolton, T. A. Boswell, C. Bowden, M. Browning, F. Buchholz, D. Burdin, S. Butler, D. Cease, H. Choi, S. Clark, A. R. Clutter, J. Cooper, A. Cooper, W. E. Corcoran, M. de Jong, S. J. Demarteau, M. Demina, R. Desai, S. Derylo, G. Ellison, J. Ermolov, P. Fagan, J. Fast, J. Filthaut, F. Foglesong, J. Fox, H. Galea, C. F. Gardner, J. Genik, R. J., II Gerber, C. E. Gershtein, Y. Gounder, K. Grinstein, S. Gu, W. Gutierrez, P. Haggerty, H. Hall, R. E. Hagopian, S. Hance, R. Harder, K. Heger, P. Heinson, A. P. Heintz, U. Hesketh, G. Hover, D. Howell, J. Hrycyk, M. Iashvili, I. Johnson, M. Joestlein, H. Juste, A. Kahl, W. Kajfasz, E. Karmanov, D. Kesisoglou, S. Khanov, A. King, J. Kleinfelder, S. Kowalski, J. Krempetz, K. Kubantsev, M. Kulik, Y. Landsberg, G. Leflat, A. Lehner, F. Lipton, R. Mao, H. S. Martin, M. Mateski, J. Matulik, M. McKenna, M. Melnitchouk, A. Merkin, M. Mihalcea, D. Milgrome, O. Montgomery, H. E. Moua, S. Naumann, N. A. Nomerotski, A. Olis, D. O'Neil, D. C. Otero y Garzon, G. J. Parua, N. Pawlak, J. Petteni, M. Quinn, B. Rapidis, P. A. Ratzmann, P. Rizatdinova, F. Roco, M. Rucinski, R. Rykalin, V. Schellman, H. Schmitt, W. Sellberg, G. Serritella, C. Shabalina, E. Sidwell, R. A. Simak, V. Smith, E. Squires, B. Stanton, N. R. Steinbrueck, G. Strandberg, J. Strandberg, S. Strauss, M. Stredde, H. Toukhtarov, A. Tripathi, S. M. Trippe, T. G. Tsybychev, D. Utes, M. van Gemmeren, P. Vaz, M. Weber, M. Wijngaarden, D. A. Wish, J. Womersley, J. Yarema, R. Ye, Z. Zieminski, A. Zimmerman, T. Zverev, E. G. TI The D0 Silicon Microstrip Tracker SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Tevatron; Dzero; Run II; Silicon detector ID DETECTOR AB This paper describes the mechanical design, the readout chain, the production, testing and the installation of the Silicon Microstrip Tracker of the D0 experiment at the Fermilab Tevatron collider. In addition, we describe the performance and operational experience of the detector during the experiment data collection between 2001 and 2010. (C) 2010 Elsevier B.V. All rights reserved. C1 [Asman, B.; Strandberg, J.; Strandberg, S.] Stockholm Univ, S-10691 Stockholm, Sweden. [Vaz, M.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. [O'Neil, D. C.] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada. [Mao, H. S.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Simak, V.] Czech Tech Univ, CR-16635 Prague, Czech Republic. [Kajfasz, E.] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France. [Fox, H.] Univ Freiburg, Inst Phys, Freiburg, Germany. [Rapidis, P. A.] Natl Ctr Sci Res Demokritos, Athens, Greece. [Ahmed, S. N.; Blekman, F.; de Jong, S. J.; Filthaut, F.; Galea, C. F.; Naumann, N. A.; Wijngaarden, D. A.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands. [Ermolov, P.; Karmanov, D.; Leflat, A.; Merkin, M.; Zverev, E. G.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Grinstein, S.; Otero y Garzon, G. J.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Harder, K.] STFC Rutherford Appleton Lab, Chilton, England. [Genik, R. J., II] Univ Lancaster, Lancaster, England. [Petteni, M.] Univ London Imperial Coll Sci Technol & Med, London, England. [Milgrome, O.] Univ Calif Berkeley, Radio Astron Lab, Berkeley, CA 94720 USA. [Clark, A. R.; Trippe, T. G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Hall, R. E.] Calif State Univ Fresno, Fresno, CA 93740 USA. [Tripathi, S. M.] Univ Calif Davis, Davis, CA 95616 USA. [Bischoff, A.; Boswell, C.; Choi, S.; Ellison, J.; Gounder, K.; Heinson, A. P.] Univ Calif Riverside, Riverside, CA 92521 USA. [Kleinfelder, S.] Univ Calif Irvine, Irvine, CA 92697 USA. [Hagopian, S.; Serritella, C.] Florida State Univ, Tallahassee, FL 32306 USA. [Angstadt, R.; Aoki, M.; Austin, S.; Bagby, L.; Bowden, M.; Browning, F.; Burdin, S.; Butler, D.; Cease, H.; Cooper, A.; Cooper, W. E.; Demarteau, M.; Desai, S.; Derylo, G.; Fagan, J.; Fast, J.; Foglesong, J.; Gu, W.; Haggerty, H.; Hance, R.; Heger, P.; Howell, J.; Hrycyk, M.; Johnson, M.; Joestlein, H.; Juste, A.; Kowalski, J.; Krempetz, K.; Kulik, Y.; Lehner, F.; Lipton, R.; Mateski, J.; Matulik, M.; McKenna, M.; Montgomery, H. E.; Moua, S.; Nomerotski, A.; Olis, D.; Pawlak, J.; Ratzmann, P.; Roco, M.; Rucinski, R.; Schmitt, W.; Sellberg, G.; Squires, B.; Stredde, H.; Toukhtarov, A.; Utes, M.; van Gemmeren, P.; Weber, M.; Wish, J.; Womersley, J.; Yarema, R.; Ye, Z.; Zimmerman, T.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Gerber, C. E.; Shabalina, E.] Univ Illinois, Chicago, IL 60607 USA. [Martin, M.; Mihalcea, D.; Rykalin, V.] No Illinois Univ, De Kalb, IL 60115 USA. [Buchholz, D.; Schellman, H.] Northwestern Univ, Evanston, IL 60208 USA. [Parua, N.; Zieminski, A.] Indiana Univ, Bloomington, IN 47405 USA. [Baringer, P.; Bean, A.; Clutter, J.; Gardner, J.; Hover, D.; King, J.; Wijngaarden, D. A.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T. A.; Kahl, W.; Kubantsev, M.; Shabalina, E.; Sidwell, R. A.; Stanton, N. R.] Kansas State Univ, Manhattan, KS 66506 USA. [Heintz, U.] Boston Univ, Boston, MA 02215 USA. [Barberis, E.; Hesketh, G.] Northeastern Univ, Boston, MA 02115 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Iashvili, I.] SUNY Buffalo, Buffalo, NY 14260 USA. [Steinbrueck, G.] Columbia Univ, New York, NY 10027 USA. [Demina, R.] Univ Rochester, Rochester, NY 14627 USA. [Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Gutierrez, P.; Smith, E.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA. [Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Kesisoglou, S.; Landsberg, G.] Brown Univ, Providence, RI 02912 USA. [Corcoran, M.] Rice Univ, Houston, TX 77005 USA. [Lehner, F.] Univ Zurich, Zurich, Switzerland. RP Asman, B (reprint author), Stockholm Univ, S-10691 Stockholm, Sweden. EM bar@physto.se RI Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; Merkin, Mikhail/D-6809-2012; Leflat, Alexander/D-7284-2012; Nomerotski, Andrei/A-5169-2010; Grinstein, Sebastian/N-3988-2014; Juste, Aurelio/I-2531-2015; OI Weber, Michele/0000-0002-2770-9031; Melnychuk, Oleksandr/0000-0002-2089-8685; Filthaut, Frank/0000-0003-3338-2247; Naumann, Axel/0000-0002-4725-0766; Gershtein, Yuri/0000-0002-4871-5449; Blekman, Freya/0000-0002-7366-7098; Heinson, Ann/0000-0003-4209-6146; Grinstein, Sebastian/0000-0002-6460-8694; Bean, Alice/0000-0001-5967-8674; Juste, Aurelio/0000-0002-1558-3291; de Jong, Sijbrand/0000-0002-3120-3367; Landsberg, Greg/0000-0002-4184-9380 FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC Program; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); CAS; CNSF (China) FX We thank the staff at Fermilab and in particular at SiDet, the D0 mechanical and electrical support personnel and all our D0 collaborators for there support. Especially we would like thank George Ginther and Susan Blessing for their thorough reading of the draft and for giving countless useful comments and suggestions. We also acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 15 TC 42 Z9 42 U1 1 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD APR 1 PY 2011 VL 634 IS 1 BP 8 EP 46 DI 10.1016/j.nima.2010.11.121 PG 39 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 738LK UT WOS:000288641100003 ER PT J AU Calhoun, TR Fleming, GR AF Calhoun, Tessa R. Fleming, Graham R. TI Quantum coherence in photosynthetic complexes SO PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS LA English DT Article DE dynamics; energy transfer; excitons; structures; two-dimensional electronic spectroscopy ID ENERGY-TRANSFER; PHYSIOLOGICAL TEMPERATURE; EXCITONIC COHERENCE; ANTENNA COMPLEXES; TRANSFER DYNAMICS; FMO PROTEIN; SPECTROSCOPY; RESOLUTION; SYSTEMS AB The initial steps of photosynthesis require the absorption and subsequent transfer of energy through an intricate network of pigment-protein complexes. Held within the protein scaffold of these complexes, chromophore molecules are densely packed and fixed in specific geometries relative to one another resulting in Coulombic coupling. Excitation energy transfer through these systems can be accomplished with near unity quantum efficiency [Wraight and Clayton, Biochim. Biophys. Acta 333, 246 (1974)]. While replication of this feat is desirable for artificial photosynthesis, the mechanism by which nature achieves this efficiency is unknown. Recent experiments have revealed the presence of long-lived quantum coherences in photosynthetic pigment-protein complexes spanning bacterial and plant species with a variety of functions and compositions. Its ubiquitous presence and wavelike energy transfer implicate quantum coherence as key to the high efficiency achieved by photosynthesis. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim C1 [Calhoun, Tessa R.; Fleming, Graham R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Calhoun, Tessa R.; Fleming, Graham R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Fleming, GR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM grfleming@lbl.gov FU Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, US Department of Energy Sciences, of the US Department of Energy [DE-AC03-76SF000098] FX This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract DE-AC02-05CH11231 and by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, US Department of Energy Sciences, of the US Department of Energy under contract DE-AC03-76SF000098. NR 38 TC 15 Z9 15 U1 0 U2 9 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 0370-1972 J9 PHYS STATUS SOLIDI B JI Phys. Status Solidi B-Basic Solid State Phys. PD APR PY 2011 VL 248 IS 4 BP 833 EP 838 DI 10.1002/pssb.201000856 PG 6 WC Physics, Condensed Matter SC Physics GA 741IB UT WOS:000288856300008 ER PT J AU Kabuss, J Carmele, A Richter, M Chow, WW Knorr, A AF Kabuss, Julia Carmele, Alexander Richter, Marten Chow, Weng W. Knorr, Andreas TI Inductive equation of motion approach for a semiconductor QD-QED: Coherence induced control of photon statistics SO PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS LA English DT Article DE cavity-QED; photon statistics; quantum coherence; quantum dots; STIRAP ID QUANTUM DOTS; POPULATION TRANSFER; EMITTERS AB This paper presents an inductive method for the microscopic description of quantum dot (QD) QED. Our description reproduces known effects up to an arbitrary accuracy, and is extendable to typical semiconductor effects, like many electron- and phonon-interactions. As an application, this method is used to theoretically examine quantum coherence phenomena and their impact on photon statistics for a L-type semiconductor QD strongly coupled to a single mode cavity and simultaneously excited with an external laser. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim C1 [Kabuss, Julia; Carmele, Alexander; Richter, Marten; Knorr, Andreas] Tech Univ Berlin, Inst Theoret Phys Nichtlineare Opt & Quantenelekt, D-10623 Berlin, Germany. [Richter, Marten] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. [Chow, Weng W.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Kabuss, J (reprint author), Tech Univ Berlin, Inst Theoret Phys Nichtlineare Opt & Quantenelekt, Hardenbergstr 36, D-10623 Berlin, Germany. EM julia@itp.tu-berlin.de RI Richter, Marten/B-7790-2008 OI Richter, Marten/0000-0003-4160-1008 FU Deutsche Forschungsgemeinschaft [Sfb 910]; US Department of Energy, Office of Science, Office of Basic Energy Sciences FX We acknowledge support from the Deutsche Forschungsgemeinschaft (Sfb 910), and the Solid-State Lighting Science Center, an Energy Frontier Research Center (EFRC) funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. NR 31 TC 13 Z9 13 U1 0 U2 6 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 0370-1972 J9 PHYS STATUS SOLIDI B JI Phys. Status Solidi B-Basic Solid State Phys. PD APR PY 2011 VL 248 IS 4 BP 872 EP 878 DI 10.1002/pssb.201000851 PG 7 WC Physics, Condensed Matter SC Physics GA 741IB UT WOS:000288856300017 ER PT J AU Zhang, W Feng, Z Crooker, P AF Zhang, W. Feng, Z. Crooker, P. TI Improved procedure for computing residual stresses from neutron diffraction data and its application to multipass dissimilar welds SO SCIENCE AND TECHNOLOGY OF WELDING AND JOINING LA English DT Article DE Neutron diffraction; Residual stress; Dissimilar metal weld; Austenitic stainless steel; Nickel alloy; Stress free lattice spacing ID X-RAY-DIFFRACTION; PHASE-TRANSFORMATIONS; LATTICE-PARAMETER; STAINLESS-STEEL; ARC WELDS; SPECIMEN; METAL; HEAT AB Neutron diffraction is an important tool for residual stress measurement in welded structures. The calculation of stresses from measured lattice spacings generally requires the stress free lattice spacing a priori. For dissimilar metal welds common to nuclear reactor pipeline systems, the stress free lattice spacing is a complex function of position due to the chemistry and microstructure inhomogeneity in the weld region, and its experimental determination can be both time consuming and unreliable. An improved approach is developed to calculate the residual stress field without the use of stress free lattice spacing. Its applicability is examined and justified in two multipass dissimilar metal welds made of 304L stainless steel plate and nickel alloy 82 filler metal using different heat inputs. The spatial variation in stress free lattice spacing is qualitatively discussed using the weld metal dilution mechanism. The improved approach is shown to be simple and practical for residual stress determination in dissimilar metal welds. C1 [Zhang, W.; Feng, Z.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Crooker, P.] Elect Power Res Inst, Palo Alto, CA USA. RP Zhang, W (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM zhangw@ornl.gov RI Feng, Zhili/H-9382-2012; Zhang, Wei/B-9471-2013 OI Feng, Zhili/0000-0001-6573-7933; FU ORNL; US Department of Energy FX This research is sponsored by the Laboratory Directed Research and Development Program of ORNL, managed by UT-Battelle, LLC, for the US Department of Energy. The neutron diffraction and deep hole drilling data are provided by the EPRI and the US NRC Joint Welding Residual Stress Validation Program. 21 The authors would like to thank Dr David Rudland of US NRC for sharing the predicted weld residual stresses. Finally, the authors appreciate valuable discussion with Dr Camden Hubbard of ORNL, Dr Mathew Kerr of US NRC and Mr John Broussard, III and Mr Matthew Klug of Dominion Engineering, Inc. NR 24 TC 7 Z9 7 U1 0 U2 13 PU MANEY PUBLISHING PI LEEDS PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND SN 1362-1718 J9 SCI TECHNOL WELD JOI JI Sci. Technol. Weld. Join. PD APR PY 2011 VL 16 IS 3 BP 254 EP 260 DI 10.1179/1362171810Y.0000000023 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 741HO UT WOS:000288855000010 ER PT J AU Cui, YL Hawrami, R Tupitysn, E Bhattacharya, P Groza, M Bryant, M Buliga, V Burger, A Cherepy, NJ Payne, SA AF Cui, Yunlong Hawrami, R. Tupitysn, Eugen Bhattacharya, Pijush Groza, Mike Bryant, Mark Buliga, Vladimir Burger, Arnold Cherepy, Nerine J. Payne, S. A. TI Raman spectroscopy study of BaI2:Eu and SrI2:Eu scintillator crystals SO SOLID STATE COMMUNICATIONS LA English DT Article DE Crystal growth; Crystal structure and symmetry ID LIGHT-SCATTERING; SPECTRUM; PBCL2 AB Europium-doped barium and strontium iodide crystals are high light yield scintillator materials with excellent energy resolution. In this communication, BaI2:Eu and SrI2:Eu single crystals with space groups of Pnma (D-2h(16)) and Pbca (D-2h(15)) respectively were grown from the vertical Bridgman method. The crystals were investigated with polarized Raman spectroscopy at temperatures varied from 77 to 300 K. The observed Raman-active modes for each crystal were assigned with the help of group theory analysis. It is found that the absence of the site symmetry leads to splitting of a spectral line in Pnma structure into two lines in the Pbca structure. Structural defects including dark spots formed during crystal growth and new species produced from hydration were characterized. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Cui, Yunlong; Hawrami, R.; Tupitysn, Eugen; Bhattacharya, Pijush; Groza, Mike; Bryant, Mark; Buliga, Vladimir; Burger, Arnold] Fisk Univ, Dept Phys, Nashville, TN 37208 USA. [Cherepy, Nerine J.; Payne, S. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Cui, YL (reprint author), Fisk Univ, Dept Phys, Nashville, TN 37208 USA. EM ycui@fisk.edu RI Cherepy, Nerine/F-6176-2013 OI Cherepy, Nerine/0000-0001-8561-923X FU DOE/NNSA [DE-AC52-07NA27344]; NSF [CA-0420516] FX The authors acknowledge partial financial support provided by the DOE/NNSA under contract No. DE-AC52-07NA27344. The authors at Fisk University gratefully acknowledge financial support from the NSF-supported Center of Research Excellence in Science and Technology (CREST, Cooperative Agreement CA-0420516). The authors would also like to thank Dr. Silberman for his valuable suggestions. NR 17 TC 3 Z9 3 U1 1 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0038-1098 J9 SOLID STATE COMMUN JI Solid State Commun. PD APR PY 2011 VL 151 IS 7 BP 541 EP 544 DI 10.1016/j.ssc.2010.12.041 PG 4 WC Physics, Condensed Matter SC Physics GA 739SQ UT WOS:000288738700008 ER PT J AU Torn, MS Biraud, SC Still, CJ Riley, WJ Berry, JA AF Torn, Margaret S. Biraud, Sebastien C. Still, Christopher J. Riley, William J. Berry, Joe A. TI Seasonal and interannual variability in C-13 composition of ecosystem carbon fluxes in the U.S. Southern Great Plains SO TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY LA English DT Article ID ATMOSPHERIC CO2; ISOTOPE DISCRIMINATION; TALLGRASS PRAIRIE; STABLE-ISOTOPES; C-4 GRASSES; GLOBAL DISTRIBUTION; EDDY COVARIANCE; AIR SAMPLES; WATER-VAPOR; EXCHANGE AB The delta 13C value of terrestrial CO2 fluxes (delta(bio)) provides important information for inverse models of CO2 sources and sinks as well as for studies of vegetation physiology, C-3 and C-4 vegetation fluxes, and ecosystem carbon residence times. From 2002-2009, we measured atmospheric CO2 concentration and delta 13C-CO2 at four heights (2 to 60 m) in the U.S. Southern Great Plains (SGP) and computed delta(bio) weekly. This region has a fine-scale mix of crops (primarily C-3 winter wheat) and C-4 pasture grasses. delta(bio) had a large and consistent seasonal cycle of 6-8 parts per thousand. Ensemble monthly mean delta(bio) ranged from -25.8 +/- 0.4 parts per thousand (+/- SE) in March to -20.1 +/- 0.4 parts per thousand in July. Thus, C-3 vegetation contributed about 80% of ecosystem fluxes in winter-spring and 50% in summer-fall. In contrast, prairie-soil delta 13C values were about -15 parts per thousand, indicating that historically the region was dominated by C-4 vegetation and had more positive delta(bio) values. Based on a land-surface model, isofluxes (delta(bio) x NEE) in this region have large seasonal amplitude because delta(bio) and net ecosystem exchange (NEE) covary. Interannual variability in isoflux was driven by variability in NEE. The large seasonal amplitude in delta(bio) and isoflux imply that carbon inverse analyses require accurate estimates of land cover and temporally resolved 13CO(2) and CO2 fluxes. C1 [Torn, Margaret S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Torn, Margaret S.] UC Berkeley, Berkeley, CA 94720 USA. [Biraud, Sebastien C.; Riley, William J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Berry, Joe A.] Carnegie Inst Washington, Dept Global Ecol, Washington, DC 20005 USA. [Still, Christopher J.] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA. RP Torn, MS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,90R111, Berkeley, CA 94720 USA. EM mstorn@lbl.gov RI Berry, Joseph/B-8211-2009; Biraud, Sebastien/M-5267-2013; Riley, William/D-3345-2015; Torn, Margaret/D-2305-2015 OI Berry, Joseph/0000-0002-5849-6438; Biraud, Sebastien/0000-0001-7697-933X; Riley, William/0000-0002-4615-2304; FU Office of Biological and Environmental Research of the U.S. Department of Energy [DE-AC02-05CH11231] FX We thank Larry Giles, Marc Fischer, Cristina Castanha, and Deb Williard for assistance with sampling and sample analysis, USDA Grazinglands Research Laboratory for site access and NOAAESRL for atmospheric network observations, the GLOBALVIEW product, and calibration standards. This research was supported by the Office of Biological and Environmental Research of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 as part of the Atmospheric Radiation Measurement Program. NR 70 TC 10 Z9 10 U1 2 U2 12 PU CO-ACTION PUBLISHING PI JARFALLA PA RIPVAGEN 7, JARFALLA, SE-175 64, SWEDEN SN 0280-6509 J9 TELLUS B JI Tellus Ser. B-Chem. Phys. Meteorol. PD APR PY 2011 VL 63 IS 2 BP 181 EP 195 DI 10.1111/j.1600-0889.2010.00519.x PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 736TG UT WOS:000288516400003 ER PT J AU Pebay, P Rojas, JM Thompson, DC AF Pebay, Philippe Rojas, J. Maurice Thompson, David C. TI Optimizing n-variate (n plus k)-nomials for small k SO THEORETICAL COMPUTER SCIENCE LA English DT Article DE Optimizing; Sparse; BSS model; Real; Exponential sum; Polynomial-time; Circuit; Approximate; Condition number ID POLYNOMIAL OPTIMIZATION; SDP-RELAXATIONS; REAL; COMPUTATION; COMPLEXITY AB We give a high precision polynomial-time approximation scheme for the supremum of any honest n-variate (n + 2)-nomial with a constant term, allowing real exponents as well as real coefficients. Our complexity bounds count field operations and inequality checks, and are quadratic in n and the logarithm of a certain condition number. For the special case of n-variate (n + 2)-nomials with integer exponents, the log of our condition number is sub-quadratic in the sparse size. The best previous complexity bounds were exponential in the sparse size, even for n fixed. Along the way, we partially extend the theory of Viro diagrams and A-discriminants to real exponents. We also show that, for any fixed delta > 0, deciding whether the supremum of an n-variate (n + n(delta))-nomial exceeds a given number is NP(R)-complete. (C) 2011 Published by Elsevier B.V. C1 [Pebay, Philippe; Thompson, David C.] Sandia Natl Labs, Livermore, CA 94551 USA. [Rojas, J. Maurice] Texas A&M Univ, Dept Math, College Stn, TX 77843 USA. RP Pebay, P (reprint author), Sandia Natl Labs, POB 969,MS 9159, Livermore, CA 94551 USA. EM pppebay@sandia.gov; rojas@math.tamu.edu; dcthomp@sandia.gov OI Pebay, Philippe/0000-0002-2311-3775 FU MSRI; Wenner Gren Foundation; US Dept. of Energy, Office of Defense; US Dept. of Energy [DE-AC04-94AL85000]; NSF [DMS-0915245, DMS-0349309]; DOE ASCR [DE-SC0002505]; Sandia National Laboratories FX We thank Eric Allender, Peter Burgisser, Felipe Cucker, Johan Hastad, and Gregorio Malajovich for discussions on complexity classes over R. The second author would also like to thank MSRI and the Wenner Gren Foundation for their support during the completion of this paper. In particular, special thanks go to Mikael Passare and Boris Shapiro of Stockholm University for their generous hospitality while this paper was completed. Finally, we thank the referees for their valuable suggestions which helped greatly to improve this paper.; The first and third authors were supported by the US Dept. of Energy, Office of Defense Programs. Sandia is a multiprogram laboratory operated by Sandia Corp., a Lockheed Martin Company, for the US Dept. of Energy under contract DE-AC04-94AL85000. The second author was partially supported by NSF grants DMS-0915245, DMS-0349309, DOE ASCR grant DE-SC0002505, and Sandia National Laboratories. NR 33 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-3975 J9 THEOR COMPUT SCI JI Theor. Comput. Sci. PD APR 1 PY 2011 VL 412 IS 16 BP 1457 EP 1469 DI 10.1016/j.tcs.2010.11.053 PG 13 WC Computer Science, Theory & Methods SC Computer Science GA 739PL UT WOS:000288730100003 ER PT J AU Basagni, S Carosi, A Petrioli, C Phillips, CA AF Basagni, Stefano Carosi, Alessio Petrioli, Chiara Phillips, Cynthia A. TI Coordinated and controlled mobility of multiple sinks for maximizing the lifetime of wireless sensor networks SO WIRELESS NETWORKS LA English DT Article DE Wireless sensor networks; Mobility management; Sink mobility; Multi-sink mobile sensor networks ID MODELS AB We define scalable models and distributed heuristics for the concurrent and coordinated movement of multiple sinks in a wireless sensor network, a case that presents significant challenges compared to the widely investigated case of a single mobile sink. Our objective is that of maximizing the network lifetime defined as the time from the start of network operations till the failure of the first node. We contribute to this problem providing three new results. We first define a linear program (LP) whose solution provides a provable upper bound on the maximum lifetime possible for any given number of sinks. We then develop a centralized heuristic that runs in polynomial time given the solution to the LP. We also define a deployable distributed heuristic for coordinating the motion of multiple sinks through the network. We demonstrate the performance of the proposed heuristics via ns2-based simulations. The observed results show that our distributed heuristic achieves network lifetimes that are remarkably close to the optimum ones, resulting also in significant improvements over the cases of deploying the sinks statically, of random sink mobility and of heuristics previously proposed for restricted sink movements. C1 [Carosi, Alessio; Petrioli, Chiara] Univ Roma La Sapienza, Dipartimento Informat, Rome, Italy. [Basagni, Stefano] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA. [Phillips, Cynthia A.] Sandia Natl Labs, Discrete Math & Complex Syst Dept, Albuquerque, NM 87185 USA. [Petrioli, Chiara] Univ Roma La Sapienza, Dept Comp Sci, Rome, Italy. RP Petrioli, C (reprint author), Univ Roma La Sapienza, Dipartimento Informat, Rome, Italy. EM basagni@ece.neu.edu; carosi@di.uniroma1.it; petrioli@di.uniroma1.it; caphill@sandia.gov RI Petrioli, Chiara/F-6297-2012; OI Petrioli, Chiara/0000-0002-3240-5075 FU NSF [0738720]; EU [215923]; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors are grateful to Bob Carr of Sandia National Laboratories for useful comments on the topics of this paper. This work was partially supported by NSF grant #0738720 and by the FP7 EU project "SENSEI, Integrating the Physical with the Digital World of the Network of the Future," Grant Agreement Number 215923, http://www.ict-sensei.org. Sandia is a multipurpose laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 29 TC 26 Z9 26 U1 0 U2 6 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1022-0038 J9 WIREL NETW JI Wirel. Netw. PD APR PY 2011 VL 17 IS 3 BP 759 EP 778 DI 10.1007/s11276-010-0313-8 PG 20 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA 737FS UT WOS:000288555100014 ER PT J AU Diskin, M Evans, A AF Diskin, Michael Evans, Alex TI Special Issue Reproductive Cycles of Animals Preface SO ANIMAL REPRODUCTION SCIENCE LA English DT Editorial Material C1 [Diskin, Michael] TEAGASC, Agr & Food Dev Author, Galway, Athenry, Ireland. [Evans, Alex] Univ Coll Dublin, Sch Agr & Food Sci, Dublin 4, Ireland. RP Diskin, M (reprint author), TEAGASC, Agr & Food Dev Author, Mellows Campus, Galway, Athenry, Ireland. EM michael.diskin@teagasc.ie; alex.evans@ucd.ie RI Mc Loughlin, Niamh/K-7229-2012 NR 0 TC 0 Z9 0 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-4320 J9 ANIM REPROD SCI JI Anim. Reprod. Sci. PD APR PY 2011 VL 124 IS 3-4 SI SI BP 147 EP 147 DI 10.1016/j.anireprosci.2011.02.026 PG 1 WC Agriculture, Dairy & Animal Science; Reproductive Biology SC Agriculture; Reproductive Biology GA 787DJ UT WOS:000292356500001 PM 21397414 ER PT J AU Ashfaq, M Skinner, CB Diffenbaugh, NS AF Ashfaq, Moetasim Skinner, Christopher B. Diffenbaugh, Noah S. TI Influence of SST biases on future climate change projections SO CLIMATE DYNAMICS LA English DT Article DE Climate change; Sea surface temperature; Global climate modeling ID TROPICAL ATLANTIC SECTOR; SEA-SURFACE TEMPERATURE; MODEL VERSION-3 CAM3; DOUBLE-ITCZ PROBLEM; UPPER-OCEAN BIASES; ATMOSPHERIC CIRCULATION; CCSM3; PACIFIC; MONSOON; VARIABILITY AB We use a quantile-based bias correction technique and a multi-member ensemble of the atmospheric component of NCAR CCSM3 (CAM3) simulations to investigate the influence of sea surface temperature (SST) biases on future climate change projections. The simulations, which cover 1977-1999 in the historical period and 2077-2099 in the future (A1B) period, use the CCSM3-generated SSTs as prescribed boundary conditions. Bias correction is applied to the monthly time-series of SSTs so that the simulated changes in SST mean and variability are preserved. Our comparison of CAM3 simulations with and without SST correction shows that the SST biases affect the precipitation distribution in CAM3 over many regions by introducing errors in atmospheric moisture content and upper-level (lower-level) divergence (convergence). Also, bias correction leads to significantly different precipitation and surface temperature changes over many oceanic and terrestrial regions (predominantly in the tropics) in response to the future anthropogenic increases in greenhouse forcing. The differences in the precipitation response from SST bias correction occur both in the mean and the percent change, and are independent of the ocean-atmosphere coupling. Many of these differences are comparable to or larger than the spread of future precipitation changes across the CMIP3 ensemble. Such biases can affect the simulated terrestrial feedbacks and thermohaline circulations in coupled climate model integrations through changes in the hydrological cycle and ocean salinity. Moreover, biases in CCSM3-generated SSTs are generally similar to the biases in CMIP3 ensemble mean SSTs, suggesting that other GCMs may display a similar sensitivity of projected climate change to SST errors. These results help to quantify the influence of climate model biases on the simulated climate change, and therefore should inform the effort to further develop approaches for reliable climate change projection. C1 [Ashfaq, Moetasim; Skinner, Christopher B.; Diffenbaugh, Noah S.] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA. [Ashfaq, Moetasim; Skinner, Christopher B.; Diffenbaugh, Noah S.] Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA. [Ashfaq, Moetasim] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN USA. [Diffenbaugh, Noah S.] Stanford Univ, Woods Inst Environm, Stanford, CA 94305 USA. RP Ashfaq, M (reprint author), Stanford Univ, Dept Environm Earth Syst Sci, 473 Via Ortega, Stanford, CA 94305 USA. EM moetasim@stanford.edu RI Ashfaq, Moetasim/A-4183-2009; Diffenbaugh, Noah/I-5920-2014 OI Diffenbaugh, Noah/0000-0002-8856-4964 FU NSF [0450221]; DOE [DE-FG02-08ER64649, DE-SC0001483]; World Bank's Trust FX We thank two anonymous reviewers for their constructive and insightful comments. This work was supported in part by NSF award 0450221, DOE awards DE-FG02-08ER64649 and DE-SC0001483, and by the World Bank's Trust Fund for Environmentally and Socially Sustainable Development. The CAM3 simulations and analyses were enabled by computational resources provided by Information Technology at Purdue (the Rosen Center for Advanced Computing, West Lafayette, Indiana). We thank the CCSM Climate Change Working group at NCAR for access to the CCSM3 simulations. NCEP Reanalysis data were provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.cdc.noaa.gov/. This is PCCRC paper number 0922. NR 40 TC 28 Z9 29 U1 0 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0930-7575 EI 1432-0894 J9 CLIM DYNAM JI Clim. Dyn. PD APR PY 2011 VL 36 IS 7-8 BP 1303 EP 1319 DI 10.1007/s00382-010-0875-2 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 744PA UT WOS:000289105300006 ER PT J AU Kuo, LJ Louchouarn, P Herbert, BE Brandenberger, JM Wade, TL Crecelius, E AF Kuo, Li-Jung Louchouarn, Patrick Herbert, Bruce E. Brandenberger, Jill M. Wade, Terry L. Crecelius, Eric TI Combustion-derived substances in deep basins of Puget Sound: Historical inputs from fossil fuel and biomass combustion SO ENVIRONMENTAL POLLUTION LA English DT Article DE Black carbon; Char; Levoglucosan; Climate oscillations; Pacific Northwest ID POLYCYCLIC AROMATIC-HYDROCARBONS; NEW-YORK-CITY; BLACK CARBON; UNITED-STATES; MOLECULAR MARKER; OXIDATION METHOD; LAKE-SEDIMENTS; RECORD; 20TH-CENTURY; LEVOGLUCOSAN AB Reconstructions of 250 years historical inputs of two distinct types of black carbon (soot/graphitic black carbon (GBC) and char-BC) were conducted on sediment cores from two basins of the Puget Sound, WA. Signatures of polycyclic aromatic hydrocarbons (PAHs) were also used to support the historical reconstructions of BC to this system. Down-core maxima in GBC and combustion-derived PAHs occurred in the 1940s in the cores from the Puget Sound Main Basin, whereas in Hood Canal such peak was observed in the 1970s, showing basin-specific differences in inputs of combustion byproducts. This system showed relatively higher inputs from softwood combustion than the northeastern U.S. The historical variations in char-BC concentrations were consistent with shifts in climate indices, suggesting an influence of climate oscillations on wildfire events. Environmental loading of combustion byproducts thus appears as a complex function of urbanization, fuel usage, combustion technology, environmental policies, and climate conditions. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Kuo, Li-Jung; Herbert, Bruce E.] Texas A&M Univ, Dept Geol & Geophys, College Stn, TX 77843 USA. [Louchouarn, Patrick] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77551 USA. [Louchouarn, Patrick] Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA. [Kuo, Li-Jung; Brandenberger, Jill M.; Crecelius, Eric] Pacific NW Natl Lab, Marine Sci Lab, Sequim, WA 98382 USA. [Wade, Terry L.] Texas A&M Univ, Geochem & Environm Res Grp, College Stn, TX 78433 USA. RP Kuo, LJ (reprint author), Pacific NW Natl Lab, Marine Sci Lab, Sequim, WA 98382 USA. EM Li-Jung.Kuo@pnl.gov RI Wade, Terry/A-4012-2012; Herbert, Bruce/K-4744-2013; Herbert, Bruce/L-2170-2015 OI Herbert, Bruce/0000-0002-6736-1148; Herbert, Bruce/0000-0002-6736-1148 FU National Oceanic and Atmospheric Administration Coastal Hypoxia Research Program [NA05NOS4781203] FX This research was funded in part from National Oceanic and Atmospheric Administration Coastal Hypoxia Research Program (grant NA05NOS4781203). We also thank Danielle Aguirre, Lisa McDonald, Jose Sericano, and Gilvan Yogui for their technique supports. We acknowledge the reviews from two anonymous reviewers whose comments greatly helped improve the manuscript. NR 55 TC 23 Z9 23 U1 1 U2 27 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0269-7491 EI 1873-6424 J9 ENVIRON POLLUT JI Environ. Pollut. PD APR PY 2011 VL 159 IS 4 BP 983 EP 990 DI 10.1016/j.envpol.2010.12.012 PG 8 WC Environmental Sciences SC Environmental Sciences & Ecology GA 734SJ UT WOS:000288357800021 PM 21236534 ER PT J AU Frommer, J Voegelin, A Dittmar, J Marcus, MA Kretzschmar, R AF Frommer, J. Voegelin, A. Dittmar, J. Marcus, M. A. Kretzschmar, R. TI Biogeochemical processes and arsenic enrichment around rice roots in paddy soil: results from micro-focused X-ray spectroscopy SO EUROPEAN JOURNAL OF SOIL SCIENCE LA English DT Article ID ORYZA-SATIVA L.; IRON PLAQUE; TEMPORAL VARIABILITY; SPATIAL-DISTRIBUTION; INTERNAL AERATION; FERROUS IRON; PLANT-ROOTS; RHIZOSPHERE; ACCUMULATION; SPECIATION AB The spatial distribution and speciation of iron (Fe), manganese (Mn) and arsenic (As) around rice roots grown in an As-affected paddy field in Bangladesh were investigated on soil sampled after rice harvest. Synchrotron micro-X-ray fluorescence spectrometry on soil thin sections revealed that roots influence soil Fe, Mn and As distribution up to 1 mm away from the root-soil interface. Around thick roots (diameter around 500 mu m), Mn was concentrated in discrete enrichments close to the root surface without associated As, whereas concentric Fe accumulations formed farther away and were closely correlated with As accumulations. Near thin roots (diameter < 100 mu m), in contrast, a pronounced enrichment of Fe and As next to the root surface and a lack of Mn enrichments was observed. X-ray absorption fine structure spectroscopy suggested that (i) accumulated Fe was mainly contained in a two-line ferrihydrite-like phase, (ii) associated As was mostly As(V) and (iii) Mn enrichments consisted of Mn(III/IV) oxyhydroxides. The distinct enrichment patterns can be related to the extent of O(2) release from primary and lateral rice roots and the thermodynamics and kinetics of Fe, Mn and As redox transformations. Our results suggest that in addition to Fe(III) plaque at the root surface, element accumulation and speciation in the surrounding rhizosphere soil must be taken into account when addressing the transfer of nutrients or contaminants into rice roots. C1 [Voegelin, A.] Swiss Fed Inst Aquat Sci & Technol, Eawag, CH-8600 Dubendorf, Switzerland. [Frommer, J.; Dittmar, J.; Kretzschmar, R.] ETH, Dept Environm Sci, Inst Biogeochem & Pollutant Dynam, Soil Chem Grp,CHN, CH-8092 Zurich, Switzerland. [Marcus, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Voegelin, A (reprint author), Swiss Fed Inst Aquat Sci & Technol, Eawag, Uberlandstr 133, CH-8600 Dubendorf, Switzerland. EM andreas.voegelin@eawag.ch RI Voegelin, Andreas/B-4018-2009; Kretzschmar, Ruben/B-4579-2016 OI Voegelin, Andreas/0000-0003-2873-8966; Kretzschmar, Ruben/0000-0003-2587-2430 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the US Department of Energy [DE-AC03-76SF00098]; Swiss National Science Foundation [200021-105612, 200020-113654] FX We thank Kurt Barmettler for technical support and Marc Herrmann for performing the sequential extraction. Mirjam Kiczka, Jan Wiederhold, Olivier Jacquat and Peter Brack are acknowledged for providing reference phases. We acknowledge the HASYLAB, the ANKA, the ESRF and the ALS for provision of synchrotron radiation facilities. Edmund Welter (HASYLAB), Sirine Fakra (ALS), Herman Emerich, Wouter van Beek (both ESRF) and Stefan Mangold (ANKA) are thanked for their assistance during data collection. The ALS is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the US Department of Energy under Contract No DE-AC03-76SF00098 at Lawrence Berkeley National Laboratory. Part of this work was funded by the Swiss National Science Foundation through grants No 200021-105612 and 200020-113654. NR 42 TC 26 Z9 29 U1 9 U2 64 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1351-0754 J9 EUR J SOIL SCI JI Eur. J. Soil Sci. PD APR PY 2011 VL 62 IS 2 BP 305 EP 317 DI 10.1111/j.1365-2389.2010.01328.x PG 13 WC Soil Science SC Agriculture GA 736OD UT WOS:000288503100011 ER PT J AU Genetos, DC Karin, NJ Geist, DJ Donahue, HJ Duncan, RL AF Genetos, Damian C. Karin, Norman J. Geist, Derik J. Donahue, Henry J. Duncan, Randall L. TI Purinergic signaling is required for fluid shear stress-induced NF-kappa B translocation in osteoblasts SO EXPERIMENTAL CELL RESEARCH LA English DT Article DE Osteoblast; Mechanotransduction; Purinergic; NF-kappa B; P2Y(6); P2X(7); Lysophosphatidic acid; ERK1/2 ID FOCAL ADHESION KINASE; LYSOPHOSPHATIDIC ACID; MC3T3-E1 OSTEOBLASTS; INTRAMEDULLARY PRESSURE; CELL-PROLIFERATION; ENDOTHELIAL-CELLS; RECEPTOR SUBTYPES; P2X(7) RECEPTORS; MLO-Y4 CELLS; ATP RELEASE AB Fluid shear stress regulates gene expression in osteoblasts, in part by activation of the transcription factor NF-kappa B. We examined whether this process was under the control of purinoceptor activation. MC3T3-E1 osteoblasts under static conditions expressed the NF-kappa B inhibitory protein I kappa B alpha and exhibited cytosolic localization of NF-kappa B. Under fluid shear stress, I kappa B alpha levels decreased, and concomitant nuclear localization of NF-kappa B was observed. Cells exposed to fluid shear stress in ATP-depleted medium exhibited no significant reduction in I kappa B alpha, and NF-kappa B remained within the cytosol. Similar results were found using oxidized ATP or Brilliant Blue G, P2X(7) receptor antagonists, indicating that the P2X7 receptor is responsible for fluid shear-stress-induced I kappa B alpha degradation and nuclear accumulation of NF-kappa B. Pharmacologic blockage of the P2Y6 receptor also prevented shear-induced I kappa B alpha degradation. These phenomena involved neither ERK1/2 signaling nor autocrine activation by P2X(7)-generated lysophosphatidic acid. Our results suggest that fluid shear stress regulates NF-kappa B activity through the P2Y(6) and P2X(7) receptor. (C) 2011 Elsevier Inc. All rights reserved. C1 [Genetos, Damian C.] UC Davis, Dept Anat Cell Biol & Physiol, Sch Vet Med, Davis, CA 95616 USA. [Karin, Norman J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Geist, Derik J.; Duncan, Randall L.] Indiana Univ Sch Med, Dept Orthopaed Surg, Indianapolis, IN USA. [Donahue, Henry J.] Penn State Coll Med, Div Musculoskeletal Sci, Dept Orthopaed & Rehabil, Hershey, PA USA. RP Genetos, DC (reprint author), UC Davis, Dept Anat Cell Biol & Physiol, Sch Vet Med, 1321 Haring Hall, Davis, CA 95616 USA. EM dgenetos@ucdavis.edu RI Genetos, Damian/A-6480-2012; OI Genetos, Damian/0000-0002-8599-2867 FU NIH NIAMS [AR051901]; NIA [AG13087]; NIAMS [AR055192, AR057547] FX NIH NIAMS AR051901 (RLD), NIA AG13087 (HJD), NIAMS AR055192 (NJK) and NIAMS AR057547 (DCG) supported the work described within. NR 67 TC 9 Z9 12 U1 0 U2 7 PU ELSEVIER INC PI SAN DIEGO PA 525 B STREET, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0014-4827 J9 EXP CELL RES JI Exp. Cell Res. PD APR 1 PY 2011 VL 317 IS 6 BP 737 EP 744 DI 10.1016/j.yexcr.2011.01.007 PG 8 WC Oncology; Cell Biology SC Oncology; Cell Biology GA 736VE UT WOS:000288522300004 PM 21237152 ER PT J AU Brunger, A Strop, P Vrljic, M Chu, S Weninger, K AF Brunger, Axel Strop, Pavel Vrljic, Marija Chu, Steven Weninger, Keith TI Towards Structural Biology with Single Molecules SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Brunger, Axel; Strop, Pavel; Vrljic, Marija] Stanford Univ, HHMI, Stanford, CA 94305 USA. [Chu, Steven] US DOE, Washington, DC USA. [Weninger, Keith] N Carolina State Univ, Raleigh, NC 27695 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708402359 ER PT J AU Cheng, K La Riviere, P De Carlo, F Xiao, XH Clark, D Xin, XY Kindlmann, G AF Cheng, Keith La Riviere, Patrick De Carlo, Francesco Xiao, Xianghui Clark, Darin Xin, Xuying Kindlmann, Gordon TI Whole-body 3D imaging at cell resolutions to define the phenomic landscape for genes, chemicals, and diseases SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Cheng, Keith; Clark, Darin; Xin, Xuying] Gittlen Canc Res Fdn, Hershey, PA USA. [Cheng, Keith; Clark, Darin; Xin, Xuying] Penn State Coll Med, Div Expt Pathol, Hershey, PA USA. [La Riviere, Patrick] U Chicago, Dept Radiol, Chicago, IL USA. [De Carlo, Francesco; Xiao, Xianghui] Argonne Natl Labs, Argonne, IL USA. [Kindlmann, Gordon] Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708405307 ER PT J AU DeBuhr, AL Stanley, C Rowe, E Grese, L O'Neill, H Berthelier, V AF DeBuhr, Amanda Leilah Stanley, Christopher Rowe, Erica Grese, Laura O'Neill, Hugh Berthelier, Valerie TI Investigating the Structure and Binding of Intrinsically Disordered Proteins SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [DeBuhr, Amanda Leilah; Rowe, Erica; Grese, Laura; Berthelier, Valerie] Univ Tennessee, Hlth Sci Ctr, Grad Sch Med, Knoxville, TN USA. [Stanley, Christopher; Rowe, Erica; Grese, Laura; O'Neill, Hugh] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708406411 ER PT J AU Deng, B Parthasarathy, S Wang, WF Sturms, R Hargrove, M Gibney, B Battaile, K Lovell, S Benson, D Zhu, H AF Deng, Bin Parthasarathy, Sudharsan Wang, WenFang Sturms, Ryan Hargrove, Mark Gibney, Brian Battaile, Kevin Lovell, Scott Benson, David Zhu, Hao TI Structural basis of Ncb5or, a multi-domain redox enzyme implicated in diabetes and lipid metabolism SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Deng, Bin; Wang, WenFang; Zhu, Hao] Univ Kansas, Med Ctr, Kansas City, KS 66103 USA. [Parthasarathy, Sudharsan; Lovell, Scott; Benson, David] Univ Kansas, Lawrence, KS 66045 USA. [Sturms, Ryan; Hargrove, Mark] Iowa State Univ, Ames, IA USA. [Gibney, Brian] CUNY Brooklyn Coll, Brooklyn, NY 11210 USA. [Battaile, Kevin] Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 2 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708406615 ER PT J AU Devkota, S Wang, YW Antonopoulos, D Chang, EB AF Devkota, Suzanne Wang, Yunwei Antonopoulos, Dion Chang, Eugene B. TI Diets high in saturated fat increase risk for IBD in genetically susceptible hosts via induction of immunogenic microflora SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Devkota, Suzanne; Wang, Yunwei; Chang, Eugene B.] Univ Chicago, Dept Med, Gastroenterol Sect, Chicago, IL 60637 USA. [Antonopoulos, Dion] Argonne Natl Lab, Inst Genom & Syst Biol, Chicago, IL USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708403237 ER PT J AU Frueh, DP Nichols, S Mishra, S Arthanari, H Koglin, A Walsh, CT Wagner, G AF Frueh, Dominique P. Nichols, Scott Mishra, Subrata Arthanari, Haribabu Koglin, Alexander Walsh, Christopher T. Wagner, Gerhard TI Transient Domain Interactions in Non-Ribosomal Peptide Synthetases SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Frueh, Dominique P.; Nichols, Scott; Mishra, Subrata] Johns Hopkins Sch Med, Baltimore, MD USA. [Arthanari, Haribabu; Walsh, Christopher T.; Wagner, Gerhard] Harvard Univ, Sch Med, Boston, MA USA. [Koglin, Alexander] Los Alamos Natl Lab, Div Chem, Los Alamos, NM USA. RI Frueh, Dominique/A-6462-2008 OI Frueh, Dominique/0000-0003-4605-3776 NR 0 TC 0 Z9 0 U1 0 U2 4 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708406418 ER PT J AU Garrod, MG Miller, JW Green, R Buchholz, BA Calvert, CC Allen, LH AF Garrod, Marjorie G. Miller, Joshua W. Green, Ralph Buchholz, Bruce A. Calvert, Christopher C. Allen, Lindsay H. TI Percent bioavailability of vitamin B12 from eggs is inversely proportional to egg total B12 consumed SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Garrod, Marjorie G.; Allen, Lindsay H.] ARS, USDA, Western Human Nutr Res Ctr, Davis, CA USA. [Miller, Joshua W.; Green, Ralph] Univ Calif Davis, Dept Med Pathol & Lab Med, Sacramento, CA 95817 USA. [Buchholz, Bruce A.] Lawrence Livermore Natl Lab, Dept Phys & Life Sci, Livermore, CA USA. [Calvert, Christopher C.; Allen, Lindsay H.] Univ Calif Davis, Davis, CA 95616 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708402055 ER PT J AU Hennessey, LE Greenlee, KJ Bennett, M Lee, WK Kirkton, SD AF Hennessey, Lauren E. Greenlee, Kendra J. Bennett, Meghan Lee, Wah-Keat Kirkton, Scott D. TI Using Synchrotron X-Ray Imaging to Visualize Tracheal Changes During Intramolt Development in American Locusts SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Hennessey, Lauren E.; Kirkton, Scott D.] Union Coll, Schenectady, NY 12308 USA. [Greenlee, Kendra J.; Bennett, Meghan] N Dakota State Univ, Fargo, ND 58105 USA. [Lee, Wah-Keat] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708400653 ER PT J AU Kerfeld, CA AF Kerfeld, Cheryl A. TI Sequence and Consequence SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Kerfeld, Cheryl A.] Univ Calif Berkeley, Joint Genome Inst, Walnut Creek, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708404740 ER PT J AU Paliakov, EM Encisco, S Chaudhary-Webb, M McCoy, LF Schleicher, RL AF Paliakov, Ekaterina M. Encisco, Sara Chaudhary-Webb, Madhulika McCoy, Leslie F. Schleicher, Rosemary L. TI Development and validation of an isotope dilution ultra-high pressure liquid chromatography-tandem mass spectrometry method for quantitation of serum 25-hydroxyvitamin D3, D2 and 3-epi-D3 SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Paliakov, Ekaterina M.; Chaudhary-Webb, Madhulika; Schleicher, Rosemary L.] Ctr Dis Control & Prevent, NCEH DLS NBB, Atlanta, GA USA. [Encisco, Sara] Oak Ridge Inst Sci & Educ, Clinton, TN USA. [McCoy, Leslie F.] Battelle Mem Inst, Atlanta, GA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708407173 ER PT J AU Perevozchikova, T Stanley, C McWilliams-Koeppen, HP Berthelier, V AF Perevozchikova, Tatiana Stanley, Christopher McWilliams-Koeppen, Helen P. Berthelier, Valerie TI The Early Intermediates Revealed: the Structural Characterization of Huntingtin Exon-1 SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Perevozchikova, Tatiana; McWilliams-Koeppen, Helen P.; Berthelier, Valerie] Univ Tennessee, Grad Sch Med, Knoxville, TN USA. [Perevozchikova, Tatiana] Univ Tennessee, Grad Sch Genome Sci & Technol, Oak Ridge Natl Lab, Oak Ridge, TN USA. [Stanley, Christopher] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708404496 ER PT J AU Sirinupong, N Brunzelle, JS Doko, E Yang, Z AF Sirinupong, Nualpun Brunzelle, Joseph S. Doko, Ernada Yang, Zhe TI Structural insights into the regulation of histone methyltransferase SmyD3: hinge motion control of posttranslational activation SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Sirinupong, Nualpun; Doko, Ernada; Yang, Zhe] Wayne State Univ, Detroit, MI USA. [Brunzelle, Joseph S.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708406353 ER PT J AU Volkow, ND Wang, GJ Fowler, JS Telang, F Tomasi, D AF Volkow, Nora D. Wang, Gene-Jack Fowler, Joanna S. Telang, Frank Tomasi, Dardo TI Overlapping Neuronal Circuits in Addiction and Obesity SO FASEB JOURNAL LA English DT Meeting Abstract CT Experimental Biology Meeting 2011 CY APR 09-13, 2011 CL Washington, DC SP Amer Assoc Anatomists (AAA), Amer Physiolog Soc (APS), Amer Soc Biochem & Mol Biol (ASBMB), Amer Soc Investigat Pathol (ASIP), Amer Soc Nutrit (ASN), Amer Soc Pharmacol & Expt Therapeut (ASPET) C1 [Volkow, Nora D.] NIDA, Bethesda, MD 20892 USA. [Wang, Gene-Jack; Fowler, Joanna S.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Telang, Frank; Tomasi, Dardo] NIAAA, Lab Neuroimaging, Bethesda, MD USA. RI Tomasi, Dardo/J-2127-2015 NR 0 TC 0 Z9 0 U1 0 U2 6 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2011 VL 25 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA 032IE UT WOS:000310708404513 ER PT J AU Pushalkar, S Mane, SP Ji, XJ Li, YH Evans, C Crasta, OR Morse, D Meagher, R Singh, A Saxena, D AF Pushalkar, Smruti Mane, Shrinivasrao P. Ji, Xiaojie Li, Yihong Evans, Clive Crasta, Oswald R. Morse, Douglas Meagher, Robert Singh, Anup Saxena, Deepak TI Microbial diversity in saliva of oral squamous cell carcinoma SO FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY LA English DT Article DE oral squamous cell carcinoma; microbial diversity; denaturing gradient gel electrophoresis; 454 pyrosequencing ID GRADIENT GEL-ELECTROPHORESIS; STREPTOCOCCUS-ANGINOSUS; COLON-CANCER; PORPHYROMONAS-GINGIVALIS; NONCULTURABLE BACTERIA; INFLAMMATORY RESPONSE; HELICOBACTER-PYLORI; GEMELLA-HAEMOLYSANS; SUBGINGIVAL PLAQUE; SPECIES RICHNESS AB In the oral cavity, chronic inflammation has been observed at various stages of oral squamous cell carcinomas (OSCC). Such inflammation could result from persistent mucosal or epithelial cell colonization by microorganisms. There is increasing evidence of the involvement of oral bacteria in inflammation, warranting further studies on the association of bacteria with the progression of OSCC. The objective of this study was to evaluate the diversity and relative abundance of bacteria in the saliva of subjects with OSCC. Using 454 parallel DNA sequencing, similar to 58 000 PCR amplicons that span the V4-V5 hypervariable region of rRNAs from five subjects were sequenced. Members of eight phyla (divisions) of bacteria were detected. The majority of classified sequences belonged to the phyla Firmicutes (45%) and Bacteroidetes (25%). Further, 52 different genera containing approximately 860 (16.51%) known species were identified and 1077 (67%) sequences belonging to various uncultured bacteria or unclassified groups. The species diversity estimates obtained with abundance-based coverage estimators and Chao1 were greater than published analyses of other microbial profiles from the oral cavity. Fifteen unique phylotypes were present in all three OSCC subjects. C1 [Pushalkar, Smruti; Ji, Xiaojie; Li, Yihong; Saxena, Deepak] NYU, Coll Dent, Dept Basic Sci & Craniofacial Biol, New York, NY 10010 USA. [Mane, Shrinivasrao P.; Evans, Clive; Crasta, Oswald R.] Virginia Tech, Virginia Bioinformat Inst, Blacksburg, VA USA. [Morse, Douglas] NYU, Coll Dent, Dept Epidemiol & Hlth Promot, New York, NY 10010 USA. [Meagher, Robert; Singh, Anup] Sandia Natl Labs, Livermore, CA USA. RP Saxena, D (reprint author), NYU, Coll Dent, Dept Basic Sci & Craniofacial Biol, 345 E 24th St,Room 921B, New York, NY 10010 USA. EM ds100@nyu.edu FU NIDCR [U54-DE14257, U19-DE018385, RO3-DE019178, RO1-DE020891] FX This work was supported by NIDCR Grants U54-DE14257, U19-DE018385, RO3-DE019178, and RO1-DE020891. NR 77 TC 26 Z9 32 U1 3 U2 13 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0928-8244 J9 FEMS IMMUNOL MED MIC JI FEMS Immunol. Med. Microbiol. PD APR PY 2011 VL 61 IS 3 BP 269 EP 277 DI 10.1111/j.1574-695X.2010.00773.x PG 9 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA 732TE UT WOS:000288211800004 PM 21205002 ER PT J AU Moura, H Terilli, RR Woolfitt, AR Gallegos-Candela, M McWilliams, LG Solano, MI Pirkle, JL Barr, JR AF Moura, Hercules Terilli, Rebecca R. Woolfitt, Adrian R. Gallegos-Candela, Maribel McWilliams, Lisa G. Solano, Maria I. Pirkle, James L. Barr, John R. TI Studies on botulinum neurotoxins type/C1 and mosaic/DC using Endopep-MS and proteomics SO FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY LA English DT Article DE botulism; Endopep-MS; proteomics; MS; label-free quantification ID IN-VITRO ASSAYS; MASS-SPECTROMETRY; STATISTICAL-MODEL; SEROTYPE-A; TOXINS; QUANTIFICATION; IDENTIFICATION; PROTEINS; DIFFERENTIATION; IMMUNOASSAYS AB Botulinum neurotoxins (BoNTs) are very potent toxins and category A biological threat agents. BoNT serotypes /C1 and /D affect birds and mammals and can be potentially lethal to humans. We have previously described the usefulness of the Endopep-MS method to detect the activity of BoNT A through G. This report was followed by the application of the method to clinical samples. The activity of the BoNT serotypes associated with human disease (/A, /B, /E, and /F) was successfully detected. However, BoNT/C and /D require different conditions for fast substrate cleavage, and a comprehensive description of a method to study BoNT/C and /D has not yet been reported. This work describes a new, optimized version of the Endopep-MS method to detect BoNTs /C1 and /DC either spiked directly in 20 mu L of reaction buffer or spiked in a larger volume of buffer and further extracted using antibody-coated magnetic beads. It was found that the incubation temperature at 42 degrees C was more effective for both toxin serotypes, but each toxin serotype has an optimum cleavage pH. Additionally, we describe for the first time a proteomics study using a fast trypsin digestion method and label-free quantification of these toxin serotypes. C1 [Moura, Hercules; Terilli, Rebecca R.; Woolfitt, Adrian R.; Solano, Maria I.; Pirkle, James L.; Barr, John R.] Ctr Dis Control & Prevent, Div Sci Lab, Natl Ctr Environm Hlth, Atlanta, GA 30341 USA. [Terilli, Rebecca R.] Assoc Publ Hlth Labs, Silver Spring, MD USA. [Terilli, Rebecca R.] Oak Ridge Inst Sci Educ, Oak Ridge, TN USA. [Gallegos-Candela, Maribel; McWilliams, Lisa G.] Battelle Mem Inst, Columbus, OH USA. RP Barr, JR (reprint author), Ctr Dis Control & Prevent, Div Sci Lab, Natl Ctr Environm Hlth, 4770 Buford Hwy NE,MS F-50, Atlanta, GA 30341 USA. EM jbarr@cdc.gov NR 37 TC 11 Z9 11 U1 0 U2 6 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0928-8244 J9 FEMS IMMUNOL MED MIC JI FEMS Immunol. Med. Microbiol. PD APR PY 2011 VL 61 IS 3 BP 288 EP 300 DI 10.1111/j.1574-695X.2010.00774.x PG 13 WC Immunology; Infectious Diseases; Microbiology SC Immunology; Infectious Diseases; Microbiology GA 732TE UT WOS:000288211800006 PM 21205003 ER PT J AU Chiang, YM Meyer, KM Praseuth, M Baker, SE Bruno, KS Wang, CCC AF Chiang, Yi-Ming Meyer, Kristen M. Praseuth, Michael Baker, Scott E. Bruno, Kenneth S. Wang, Clay C. C. TI Characterization of a polyketide synthase in Aspergillus niger whose product is a precursor for both dihydroxynaphthalene (DHN) melanin and naphtho-gamma-pyrone SO FUNGAL GENETICS AND BIOLOGY LA English DT Article DE Secondary metabolism; Aspergillus niger; Natural products; Genomics; Naphtho-gamma-pyrone; Polyketides ID CONIDIAL PIGMENT BIOSYNTHESIS; GENE-CLUSTER; NATURAL-PRODUCTS; FUMIGATUS; NIDULANS; GENOMICS; MANIPULATIONS; METABOLITES; VERSATILE; ENCODES AB The genome sequencing of the fungus Aspergillus niger uncovered a large cache of genes encoding enzymes thought to be involved in the production of secondary metabolites yet to be identified. Identification and structural characterization of many of these predicted secondary metabolites are hampered by their low concentration relative to the known A. niger metabolites such as the naphtho-gamma-pyrone family of polyketides. We deleted a non-reducing PKS gene in A. niger strain ATCC 11414. a daughter strain of A. niger ATCC strain 1015 whose genome was sequenced by the DOE Joint Genome Institute. This PKS encoding gene we name albA is a predicted ortholog of alb1 from Aspergillus fumigatus which is responsible for production of the naphtho-gamma-pyrone precursor for the 1,8-dihydroxynaphthalene (DHN) melanin/spore pigment. Our results show that the A. niger albA PKS is responsible for both the production of the spore pigment precursor and a family of naphtho-gamma-pyrones commonly found in significant quantity in A. niger culture extracts. The generation of an A. niger strain devoid of naphtho-gamma-pyrones will greatly facilitate the elucidation of cryptic biosynthetic pathways in this organism. (c) 2010 Elsevier Inc. All rights reserved. C1 [Meyer, Kristen M.; Baker, Scott E.; Bruno, Kenneth S.] Pacific NW Natl Lab, Energy & Environm Directorate, Chem & Biol Proc Dev Grp, Richland, WA 99352 USA. [Chiang, Yi-Ming] Chia Nan Univ Pharm & Sci, Grad Inst Pharmaceut Sci, Tainan 71710, Taiwan. [Chiang, Yi-Ming; Praseuth, Michael; Wang, Clay C. C.] Univ So Calif, Sch Pharm, Dept Pharmacol & Pharmaceut Sci, Los Angeles, CA 90089 USA. [Wang, Clay C. C.] Univ So Calif, Coll Letters Arts & Sci, Dept Chem, Los Angeles, CA 90089 USA. RP Bruno, KS (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Chem & Biol Proc Dev Grp, 902 Battelle Blvd, Richland, WA 99352 USA. EM Bruno@pnl.gov; clayw@usc.edu OI Chiang, Yi-Ming/0000-0001-9899-1364 FU National Institute of General Medical Sciences [PO1GM084077]; Department of Energy, Office of the Biomass Program; US Department of Energy's Office of Science, Biological and Environmental Research [ATCC 1015]; University of California, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Los Alamos National Laboratory [DE-AC02-06NA25396] FX This project was supported by Grants PO1GM084077 to CW from the National Institute of General Medical Sciences. Research conducted at the Pacific Northwest National Lab was supported by the Department of Energy, Office of the Biomass Program. We are grateful to the DOE Joint Genome Institute for generation of the genome sequence of Aspergillus niger strain ATCC 1015 which was performed under the auspices of the US Department of Energy's Office of Science, Biological and Environmental Research Program and the University of California, Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231, Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344, and Los Alamos National Laboratory under Contract No. DE-AC02-06NA25396. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute of General Medical Sciences or the National Institutes of Health. NR 33 TC 32 Z9 35 U1 5 U2 35 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1087-1845 EI 1096-0937 J9 FUNGAL GENET BIOL JI Fungal Genet. Biol. PD APR PY 2011 VL 48 IS 4 BP 430 EP 437 DI 10.1016/j.fgb.2010.12.001 PG 8 WC Genetics & Heredity; Mycology SC Genetics & Heredity; Mycology GA 737TE UT WOS:000288590300010 PM 21176790 ER PT J AU Liserre, M Balcells, J Basso, T Bialasiewicz, JT Cecati, C Chakraborty, S Guerrero, JM Kazerani, M Kupzog, F Nasiri, A Palensky, P Rodriguez, J Rodriguez, P Sauter, T Teodorescu, R AF Liserre, Marco Balcells, Josep Basso, Thomas Bialasiewicz, Jan T. Cecati, Carlo Chakraborty, Sudipta Guerrero, Josep M. Kazerani, Mehrdad Kupzog, Friederich Nasiri, Adel Palensky, Peter Rodriguez, Jose Rodriguez, Pedro Sauter, Thilo Teodorescu, Remus TI SPECIAL SECTION ON RENEWABLE ENERGY SYSTEMS-PART II SO IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS LA English DT Editorial Material C1 [Liserre, Marco] Polytech Univ Bari, I-70126 Bari, Italy. [Balcells, Josep] Univ Politecn Cataluna, ES-08034 Barcelona, Spain. [Basso, Thomas; Chakraborty, Sudipta] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Bialasiewicz, Jan T.] Univ Colorado, Dept Elect Engn, Denver, CO 80217 USA. [Cecati, Carlo] Univ Aquila, Dept Elect & Informat Engn, I-67040 Laquila, Italy. [Guerrero, Josep M.] Tech Univ Catalonia, Dept Automat Control Syst & Comp Engn, Barcelona 08028, Spain. [Kazerani, Mehrdad] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada. [Kupzog, Friederich] Vienna Univ Technol, Inst Comp Technol, A-1040 Vienna, Austria. [Nasiri, Adel] Univ Wisconsin, Dept Elect Engn & Comp Sci, Milwaukee, WI 53201 USA. [Palensky, Peter] AIT, A-1210 Vienna, Austria. [Rodriguez, Jose] Univ Tecn Federico Santa Maria, Dept Elect Engn, Valparaiso, Chile. [Rodriguez, Pedro] Univ Politecn Cataluna, Dept Elect Engn, Res Grp Renewable Elect Energy Syst, Barcelona 08036, Spain. [Sauter, Thilo] Austrian Acad Sci, Inst Integraded Sensor Syst, A-2700 Wiener Neustadt, Austria. [Teodorescu, Remus] Univ Aalborg, Inst Energy Technol Power Elect, DK-9220 Aalborg, Denmark. [Teodorescu, Remus] Univ Aalborg, Drives Dept, DK-9220 Aalborg, Denmark. RP Liserre, M (reprint author), Polytech Univ Bari, I-70126 Bari, Italy. RI Rodriguez, Jose/A-2534-2013; RODRIGUEZ, PEDRO/C-8038-2013; Palensky, Peter/J-7238-2013; Guerrero, Josep/D-5519-2014; Balcells, Josep/F-2942-2016; researchers, ac3e/N-2008-2016; Teodorescu, Remus/O-5224-2015 OI Palensky, Peter/0000-0003-3183-4705; Guerrero, Josep/0000-0001-5236-4592; Balcells, Josep/0000-0001-7173-1255; Teodorescu, Remus/0000-0002-2617-7168 NR 0 TC 0 Z9 0 U1 0 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0278-0046 J9 IEEE T IND ELECTRON JI IEEE Trans. Ind. Electron. PD APR PY 2011 VL 58 IS 4 BP 1074 EP 1080 DI 10.1109/TIE.2010.2104090 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic; Instruments & Instrumentation SC Automation & Control Systems; Engineering; Instruments & Instrumentation GA 734KZ UT WOS:000288334300001 ER PT J AU Franco, AA Kothary, MH Gopinath, G Jarvis, KG Grim, CJ Hu, L Datta, AR McCardell, BA Tall, BD AF Franco, A. A. Kothary, M. H. Gopinath, G. Jarvis, K. G. Grim, C. J. Hu, L. Datta, A. R. McCardell, B. A. Tall, B. D. TI Cpa, the Outer Membrane Protease of Cronobacter sakazakii, Activates Plasminogen and Mediates Resistance to Serum Bactericidal Activity SO INFECTION AND IMMUNITY LA English DT Article ID ENTERICA SEROVAR TYPHIMURIUM; POWDERED INFANT FORMULA; ENTEROBACTER-SAKAZAKII; YERSINIA-PESTIS; ESCHERICHIA-COLI; SALMONELLA-ENTERICA; SURFACE PROTEASE; O-ANTIGEN; ENDOTHELIAL-CELLS; COMPLEMENT AB Cronobacter spp. are emerging neonatal pathogens in humans, associated with outbreaks of meningitis and sepsis. To cause disease, they must survive in blood and invade the central nervous system by penetrating the blood-brain barrier. C. sakazakii BAA-894 possesses an similar to 131-kb plasmid (pESA3) that encodes an outer membrane protease (Cpa) that has significant identity to proteins that belong to the Pla subfamily of omptins. Members of this subfamily of proteins degrade a number of serum proteins, including circulating complement, providing protection from the complement-dependent serum killing. Moreover, proteins of the Pla subfamily can cause uncontrolled plasmin activity by converting plasminogen to plasmin and inactivating the plasmin inhibitor alpha 2-antiplasmin (alpha 2-AP). These reactions enhance the spread and invasion of bacteria in the host. In this study, we found that an isogenic cpa mutant showed reduced resistance to serum in comparison to its parent C. sakazakii BAA-894 strain. Overexpression of Cpa in C. sakazakii or Escherichia coli DH5 alpha showed that Cpa proteolytically cleaved complement components C3, C3a, and C4b. Furthermore, a strain of C. sakazakii overexpressing Cpa caused a rapid activation of plasminogen and inactivation of alpha 2-AP. These results strongly suggest that Cpa may be an important virulence factor involved in serum resistance, as well as in the spread and invasion of C. sakazakii. C1 [Franco, A. A.] US FDA, MOD Facil 1, Virulence Mech Branch HFS 025, Div Virulence Assessment,OARSA,Ctr Food Safety &, Laurel, MD 20708 USA. [Jarvis, K. G.; Grim, C. J.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. RP Franco, AA (reprint author), US FDA, MOD Facil 1, Virulence Mech Branch HFS 025, Div Virulence Assessment,OARSA,Ctr Food Safety &, 8301 MuirKirk Rd, Laurel, MD 20708 USA. EM augusto.franco-mora@fda.hhs.gov OI Tall, Ben/0000-0003-0399-3629 FU Department of Energy FX L.H. is an FDA Commissioner's Fellow. K.G.J. and C.J.G. are Oak Ridge Institute for Science and Education fellows, and we thank the Department of Energy for their support. NR 63 TC 24 Z9 26 U1 1 U2 4 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0019-9567 J9 INFECT IMMUN JI Infect. Immun. PD APR PY 2011 VL 79 IS 4 BP 1578 EP 1587 DI 10.1128/IAI.01165-10 PG 10 WC Immunology; Infectious Diseases SC Immunology; Infectious Diseases GA 736YX UT WOS:000288532300019 PM 21245266 ER PT J AU Sohel, MI Sellier, M Brackney, LJ Krumdieck, S AF Sohel, M. Imroz Sellier, Mathieu Brackney, Larry J. Krumdieck, Susan TI An iterative method for modelling the air-cooled organic Rankine cycle geothermal power plant SO INTERNATIONAL JOURNAL OF ENERGY RESEARCH LA English DT Article DE geothermal power plant; air-cooling; organic Rankine cycle; performance analysis ID WASTE HEAT-RECOVERY; THERMODYNAMIC ANALYSIS; BINARY PLANTS; PERFORMANCE; ORC; TEMPERATURE; SYSTEM; DESALINATION; EFFICIENCY; OPTIMIZATION AB This work presents an iterative method for modelling the effect of ambient air temperature on the air-cooled organic Rankine cycle. The ambient temperature affects the condenser performance, and hence the performance of the whole cycle, in two ways. First, changing the equilibrium pressure inside the condenser, the turbine outlet pressure and the turbine pressure ratio vary. Since the turbine pressure ratio is a major parameter in determining the power generated by a turbine, the plant output is directly affected. Second, changing the condenser outlet temperature with ambient temperature, the pump inlet and outlet conditions are changed. Thus, the vapourizer equilibrium temperature and pressure are influenced. The developed method iteratively seeks the equilibrium conditions for both the condenser and vapourizer. Two case studies based on a real plant performance have been carried out to demonstrate the validity of the method. The developed method demonstrates robustness and converges regardless of the initial conditions allowed by the physical properties of the working fluid. This method is effective for cycles that use saturated vapour as well as superheated vapour under static or dynamic conditions with appropriate initial conditions and constraints. The developed method may be applied to any Rankine cycle with closed cycle operation. Copyright (C) 2010 John Wiley & Sons, Ltd. C1 [Sohel, M. Imroz] Scion, Rotorua, New Zealand. [Sellier, Mathieu; Krumdieck, Susan] Univ Canterbury, Dept Mech Engn, Christchurch 1, New Zealand. [Brackney, Larry J.] Natl Renewable Energy Lab, Commercial Bldg Syst Elect Resources & Bldg Syst, Golden, CO 80401 USA. RP Sohel, MI (reprint author), Scion, Te Papa Tipu Innovat Pk,49 Sala St, Rotorua, New Zealand. EM mohammed.sohel@scionresearch.com RI lee, yunzhu/G-1723-2011; Sellier, Mathieu/G-3902-2012; OI Sellier, Mathieu/0000-0002-5060-1707; Krumdieck, Susan/0000-0002-2333-958X FU University of Canterbury FX Contract/grant sponsor: University of Canterbury NR 46 TC 6 Z9 6 U1 1 U2 13 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0363-907X J9 INT J ENERG RES JI Int. J. Energy Res. PD APR PY 2011 VL 35 IS 5 BP 436 EP 448 DI 10.1002/er.1706 PG 13 WC Energy & Fuels; Nuclear Science & Technology SC Energy & Fuels; Nuclear Science & Technology GA 735CM UT WOS:000288391000007 ER PT J AU Chu, HJ Pan, E Wang, J Beyerlein, IJ AF Chu, H. J. Pan, E. Wang, J. Beyerlein, I. J. TI Three-dimensional elastic displacements induced by a dislocation of polygonal shape in anisotropic elastic crystals SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES LA English DT Article DE Dislocation; Polygonal shape; Displacement field; Green's function; Anisotropic materials; Removable singularity ID GREENS-FUNCTIONS; HALF-SPACE; FIELDS; STRESSES; UNIFORM; SOLIDS; MEDIA AB Dislocations and the elastic fields they induce in anisotropic elastic crystals are basic for understanding and modeling the mechanical properties of crystalline solids. Unlike previous solutions that provide the strain and/or stress fields induced by dislocation loops, in this paper, we develop, for the first time, an approach to solve the more fundamental problem the anisotropic elastic dislocation displacement field. By applying the point-force Green's function for a three-dimensional anisotropic elastic material, the elastic displacement induced by a dislocation of polygonal shape is derived in terms of a simple line integral. It is shown that the singularities in the integrand of this integral are all removable. The proposed expression is applied to calculate the elastic displacements of dislocations of two different fundamental shapes, i.e. triangular and hexagonal. The results show that the displacement jump across the dislocation loop surface exactly equals the assigned Burgers vector, demonstrating that the proposed approach is accurate. The dislocation-induced displacement contours are also presented, which could be used as benchmarks for future numerical studies. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Chu, H. J.; Pan, E.] Univ Akron, Dept Civil Engn, Akron, OH 44325 USA. [Chu, H. J.; Pan, E.] Univ Akron, Dept Appl Math, Akron, OH 44325 USA. [Chu, H. J.] Yangzhou Univ, Res Grp Mech, Yangzhou 225009, Peoples R China. [Wang, J.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. [Beyerlein, I. J.] Los Alamos Natl Lab, Fluid Dynam & Solid Mech Div, Div Theoret, Los Alamos, NM 87545 USA. RP Pan, E (reprint author), Univ Akron, Dept Civil Engn, Akron, OH 44325 USA. EM pan2@uakron.edu RI Pan, Ernian/F-4504-2011; Beyerlein, Irene/A-4676-2011; Wang, Jian/F-2669-2012 OI Pan, Ernian/0000-0001-6640-7805; Wang, Jian/0000-0001-5130-300X FU National Natural Science Foundation [10602050]; Jiangsu Government; Los Alamos National Laboratory Directed Research and Development (LDRD) [DR20110029]; US Department of Energy Office of Science and Office of Basic Energy Sciences FX This work was supported by the National Natural Science Foundation (10602050) and Jiangsu Government Scholarship for overseas studies. J. Wang and I. J. Beyerlein acknowledge support provided by a Los Alamos National Laboratory Directed Research and Development (LDRD) project DR20110029. J. Wang also acknowledges support provided by the US Department of Energy Office of Science and Office of Basic Energy Sciences. NR 26 TC 12 Z9 12 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0020-7683 J9 INT J SOLIDS STRUCT JI Int. J. Solids Struct. PD APR PY 2011 VL 48 IS 7-8 BP 1164 EP 1170 DI 10.1016/j.ijsolstr.2010.12.015 PG 7 WC Mechanics SC Mechanics GA 735IX UT WOS:000288408700009 ER PT J AU Lee, JH Gao, YF AF Lee, Jin Haeng Gao, Yanfei TI Mixed-mode singularity and temperature effects on dislocation nucleation in strained interconnects SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES LA English DT Article DE Dislocation nucleation; Strained electronics; Activation energy ID SURFACE STEPS; CRACK-TIP; ADHESIVE CONTACT; MICRO-PLASTICITY; BEHAVIOR; TENSION; DUCTILE; BRITTLE AB Dislocations can be nucleated from sharp geometric features in strained interconnects due to the thermal expansion coefficient mismatch, lattice mismatch, or stresses that arise during material processing. The asymptotic stress fields near the edge root can be described by mixed-mode singularities, which depend on the dihedral angle and material properties, and a transverse T-stress, which depends on how residual stress is realized in the interconnects. The critical condition for stress nucleation can be determined when an appropriate measure of the stress intensity factors (SIFs) reaches a critical value. This method, however, does not offer an explicit picture of the dislocation nucleation process so that it has difficulties in studying complicated structures, mode mixity effects, and more importantly the temperature effects. Using the Peierls concept, a dislocation can be described by a continuous slip field, and the dislocation nucleation occurs when the total potential energy reaches a stationary state. Through implementing this ad hoc interface model into a finite element framework, it is found that dislocation nucleation becomes more difficult with the increase of mode mixity, or the decrease of the T-stress, or the decrease of the length-to-height ratio of the surface pad, while the shape of the surface pad, being a square or a long line, plays a less important role. The Peierls dislocation model also allows us to determine the activation energy, which is the energy needed for the thermally activated, mechanically assisted dislocation nucleation when the applied load is lower than the athermal critical value. The calculated saddle point configuration agrees well with the molecular simulations in literature. Suggestions on making immortal strained interconnects are made. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Lee, Jin Haeng; Gao, Yanfei] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Gao, Yanfei] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. RP Lee, JH (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. EM jhlee.sg@gmail.com; ygao7@utk.edu RI Gao, Yanfei/F-9034-2010; Lee, Jin Haeng/E-2457-2011 OI Gao, Yanfei/0000-0003-2082-857X; FU National Science Foundation [CMMI 0800168, CMMI 0900027]; Center for Materials Processing at the University of Tennessee; Korea Research Foundation [KRF-352-D00001]; Korean Government (MOEHRD); Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-000R22725]; UT-Battelle, LLC FX Financial support for this work was provided by the National Science Foundation (CMMI 0800168 and CMMI 0900027), and the Center for Materials Processing at the University of Tennessee. J.H.L. was partially supported by the Korea Research Foundation Grant (Grant No. KRF-352-D00001) funded by the Korean Government (MOEHRD). Research at the Oak Ridge National Laboratory was sponsored by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy, under contract DE-AC05-000R22725 with UT-Battelle, LLC. NR 32 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 0020-7683 EI 1879-2146 J9 INT J SOLIDS STRUCT JI Int. J. Solids Struct. PD APR PY 2011 VL 48 IS 7-8 BP 1180 EP 1190 DI 10.1016/j.ijsolstr.2011.01.001 PG 11 WC Mechanics SC Mechanics GA 735IX UT WOS:000288408700011 ER PT J AU Gardberg, AS Potter, BS Palmer, RA McIntyre, GJ Myles, DAA AF Gardberg, Anna S. Potter, Brian S. Palmer, Rex A. McIntyre, Garry J. Myles, Dean A. A. TI The Neutron Structure of the Formyl Peptide Receptor Antagonist Cyclosporin H (CsH) Unambiguously Determines the Solvent and Hydrogen-Bonding Structure for Crystal Form II SO JOURNAL OF CHEMICAL CRYSTALLOGRAPHY LA English DT Article DE Cyclosporin H; Neutron structure; Water hydrogens; Hydrogen bonding; Laue diffraction ID FREE R-VALUE; SINGLE-CRYSTAL; CONFORMATION; CYCLOPHILIN; COMPLEX; NMR; QUALITY; MODEL AB Single-crystal neutron diffraction data were collected at 20 K to a resolution of 1.05 on a crystal of the inverse formyl peptide receptor agonist cyclosporin H, CsH, (crystal form II, CsH-II) on the Laue diffractometer VIVALDI at the Institut Laue-Langevin (Grenoble). The solvent structure and hydrogen bonding network of CsH-II have been unambiguously determined by single-crystal neutron diffraction; the agreement factor R(F (2)) is 13.5% for all 2726 reflections. All hydrogen atom positions, including methyl-group orientations, have been determined by crystallographic refinement. The neutron structure of cyclosporin provides unique and complementary insights into methyl orientation, hydrogen-bonding, and solvent interactions that are not available from X-ray analysis alone. C1 [Gardberg, Anna S.; Myles, Dean A. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Potter, Brian S.; Palmer, Rex A.] Univ London, Birkbeck Coll, Sch Crystallog, London WC1E 7HX, England. [McIntyre, Garry J.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France. RP Gardberg, AS (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM agardberg@embios.com RI G, Neela/H-3016-2014; myles, dean/D-5860-2016 OI myles, dean/0000-0002-7693-4964 FU Office of Biological and Environmental Research [DE-AC05-00OR22725]; US Department of Energy FX We gratefully acknowledge the ILL for the provision of beamtime. We thank Professor Jon Cooper for his help and interest in the early stages of this study. We thank Ray Simpson for depicting the main chain trace shown in the Index Abstract figure. This research at Oak Ridge National Laboratory's Center for Structural Molecular Biology (CSMB) was supported by the Office of Biological and Environmental Research, using facilities supported by the US Department of Energy, managed by UT-Battelle, LLC under contract No. DE-AC05-00OR22725. This research was supported in part by an appointment to the ORNL Postdoctoral Research Associates Program at the Oak Ridge National Laboratory, sponsored by the US Department of Energy and administered by the Oak Ridge Institute for Science and Education. NR 29 TC 1 Z9 1 U1 2 U2 5 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1074-1542 J9 J CHEM CRYSTALLOGR JI J. Chem. Crystallogr. PD APR PY 2011 VL 41 IS 4 BP 470 EP 480 DI 10.1007/s10870-010-9903-7 PG 11 WC Crystallography; Spectroscopy SC Crystallography; Spectroscopy GA 732IQ UT WOS:000288178600007 ER PT J AU Crockett, RK Colella, P Graves, DT AF Crockett, R. K. Colella, P. Graves, D. T. TI A Cartesian grid embedded boundary method for solving the Poisson and heat equations with discontinuous coefficients in three dimensions SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Heat equation; Jump conditions; Discontinuous coefficient; Irregular domain; Finite volume methods; Multigrid methods ID IRREGULAR DOMAINS; ELLIPTIC-EQUATIONS; INTERFACE PROBLEMS; SCHEMES; FLOWS AB We present a method for solving Poisson and heat equations with discontinuous coefficients in two- and three-dimensions. It uses a Cartesian cut-cell/embedded boundary method to represent the interface between materials, as described in Johansen and Colella (1998). Matching conditions across the interface are enforced using an approximation to fluxes at the boundary. Overall second order accuracy is achieved, as indicated by an array of tests using non-trivial interface geometries. Both the elliptic and heat solvers are shown to remain stable and efficient for material coefficient contrasts up to 106, thanks in part to the use of geometric multigrid. A test of accuracy when adaptive mesh refinement capabilities are utilized is also performed. An example problem relevant to nuclear reactor core simulation is presented, demonstrating the ability of the method to solve problems with realistic physical parameters. (C) 2011 Elsevier Inc. All rights reserved. C1 [Crockett, R. K.; Colella, P.; Graves, D. T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Appl Numer Algorithms Grp, Berkeley, CA 94720 USA. RP Crockett, RK (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Appl Numer Algorithms Grp, MS 50A-1148,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM RKCrockett@txcorp.com FU Department of Energy [DE-AC02-05-CH11231] FX We thank Brian Van Straalen for help with the Chombo software library. We also thank the reviewers, whose thoughtful comments helped greatly improve upon the initial version of this paper. This work was supported by the Department of Energy under contract number DE-AC02-05-CH11231. NR 24 TC 11 Z9 11 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 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD APR 1 PY 2011 VL 230 IS 7 BP 2451 EP 2469 DI 10.1016/j.jcp.2010.12.017 PG 19 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 735LE UT WOS:000288415200007 ER PT J AU Lipnikov, K Manzini, G Svyatskiy, D AF Lipnikov, K. Manzini, G. Svyatskiy, D. TI Analysis of the monotonicity conditions in the mimetic finite difference method for elliptic problems SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Mimetic finite differences; Discrete maximum principle; Monotone matrix; M-matrix; Monotone scheme; Mesh refinement ID DISCRETE MAXIMUM PRINCIPLE; DIFFUSION-PROBLEMS; POLYHEDRAL MESHES; POLYGONAL MESHES; STOKES PROBLEM; CONVERGENCE ANALYSIS; ERROR ESTIMATOR; VOLUME METHOD; DISCRETIZATION; APPROXIMATIONS AB The maximum principle is one of the most important properties of solutions of partial differential equations. Its numerical analog, the discrete maximum principle (DMP), is one of the most difficult properties to achieve in numerical methods, especially when the computational mesh is distorted to adapt and conform to the physical domain or the problem coefficients are highly heterogeneous and anisotropic. Violation of the DMP may lead to numerical instabilities such as oscillations and to unphysical solutions such as heat flow from a cold material to a hot one. In this work, we investigate sufficient conditions to ensure the monotonicity of the mimetic finite difference (MFD) method on two- and three-dimensional meshes. These conditions result in a set of general inequalities for the elements of the mass matrix of every mesh element. Efficient solutions are devised for meshes consisting of simplexes, parallelograms and parallelepipeds, and orthogonal locally refined elements as those used in the AMR methodology. On simplicial meshes, it turns out that the MFD method coincides with the mixed-hybrid finite element methods based on the low-order Raviart-Thomas vector space. Thus, in this case we recover the well-established conventional angle conditions of such approximations. Instead, in the other cases a suitable design of the MFD method allows us to formulate a monotone discretization for which the existence of a DMP can be theoretically proved. Moreover, on meshes of parallelograms we establish a connection with a similar monotonicity condition proposed for the Multi-Point Flux Approximation (MPFA) methods. Numerical experiments confirm the effectiveness of the considered monotonicity conditions. 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. [Manzini, G.] IMATI CNR, I-27100 Pavia, Italy. [Manzini, G.] IUSS, CeSNA, I-2700 Pavia, Italy. Los Alamos Natl Lab, Natl Nucl Secur Adm, US DOE, Los Alamos, NM 87545 USA. RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Div Theoret, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA. EM lipnikov@lanl.gov; marco.manzini@imati.cnr.it; dasvyat@lanl.gov OI Manzini, Gianmarco/0000-0003-3626-3112 FU Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; DOE Office of Science Advanced Computing Research (ASCR); National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX Funded by the Department of Energy at Los Alamos National Laboratory under contracts DE-AC52-06NA25396 and the DOE Office of Science Advanced Computing Research (ASCR) program in Applied Mathematical Sciences.; 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 Research. NR 52 TC 32 Z9 35 U1 1 U2 2 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 APR 1 PY 2011 VL 230 IS 7 BP 2620 EP 2642 DI 10.1016/j.jcp.2010.12.039 PG 23 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 735LE UT WOS:000288415200016 ER PT J AU Yu, XZ Hwang, CG Jozwiak, CM Kohl, A Schmid, AK Lanzara, A AF Yu, X. Z. Hwang, C. G. Jozwiak, C. M. Koehl, A. Schmid, A. K. Lanzara, A. TI New synthesis method for the growth of epitaxial graphene SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE Epitaxial graphene; Growth method; Surface morphology ID SILICON-CARBIDE; HETEROEPITAXIAL GRAPHITE; ELECTRONIC-STRUCTURE; DIRAC FERMIONS; FILMS; GAS; GRAPHITIZATION; PHOTOEMISSION; SUBSTRATE AB As a viable candidate for an all-carbon post-CMOS electronics revolution, epitaxial graphene has attracted significant attention. To realize its application potential, reliable methods for fabricating large-area single-crystalline graphene domains are required. A new way to synthesize high quality epitaxial graphene, namely "face-to-face" method, has been reported in this paper. The structure and morphologies of the samples are characterized by low-energy electron diffraction, atomic force microscopy, angle-resolved photoemission spectroscopy and Raman spectroscopy. The grown samples show better quality and larger length scales than samples grown through conventional thermal desorption. Moreover, the graphene thickness can be easily controlled by changing annealing temperature. (C) 2011 Elsevier B.V. All rights reserved. C1 [Lanzara, A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Yu, X. Z.] Shanghai Jiao Tong Univ, Lab Condensed Matter Spect & Optoelect Phys, Dept Phys, Shanghai 200030, Peoples R China. [Schmid, A. K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94709 USA. [Yu, X. Z.; Hwang, C. G.; Jozwiak, C. M.; Koehl, A.; Lanzara, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA. RP Lanzara, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM ALanzara@lbl.gov FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division of the U.S. Department of Energy [DE-AC02_05CH11231]; China Scholarship Council FX We would like to thank D.A. Siegel for useful discussions, B.S. Geng and F. Wang for help with the Raman measurement. 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. X.Z. Yu would like to thank her advisor, Prof. Wenzhong Shen in Shanghai Jiao Tong University for providing her the opportunity to spend a period in UC Berkeley. Such stay was supported by the joint-training project between Berkeley and China by the China Scholarship Council. NR 40 TC 20 Z9 22 U1 5 U2 29 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 APR PY 2011 VL 184 IS 3-6 SI SI BP 100 EP 106 DI 10.1016/j.elspec.2010.12.034 PG 7 WC Spectroscopy SC Spectroscopy GA 784QN UT WOS:000292173400005 ER PT J AU Smolentsev, G Canton, SE Lockard, JV Sundstrom, V Chen, LX AF Smolentsev, G. Canton, S. E. Lockard, J. V. Sundstrom, V. Chen, L. X. TI Local structure of photoexcited bimetallic complexes refined by quantitative XANES analysis SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE X-ray transient absorption; XANES; Ultrafast X-ray spectroscopy ID RAY-ABSORPTION SPECTROSCOPY; MOLECULAR-STRUCTURES; DYNAMICS; STATE; SCATTERING; OXIDATION; CRYSTAL; WATER AB Photoexcited states of a pyrazolate bridged PtPt dimer and a supramolecular RuCo complex with bipyridine-type ligands were studied using the pump-and-probe X-ray absorption spectroscopy method. The local structure refinement based on the fitting of XANES difference spectra has been performed. The theoretical analysis included the full multiple scattering calculations and the multidimensional interpolation of spectra as a function of structural parameters. The influence of possible correlations between the fraction of molecules in the photoexcited state and structural parameters is discussed. (C) 2011 Elsevier B.V. All rights reserved. C1 [Smolentsev, G.; Sundstrom, V.] Lund Univ, Dept Chem Phys, SE-22100 Lund, Sweden. [Smolentsev, G.] So Fed Univ, Res Ctr Nanoscale Struct Matter, Rostov Na Donu 344090, Russia. [Smolentsev, G.] So Fed Univ, Dept Phys, Rostov Na Donu 344090, Russia. [Canton, S. E.] Lund Univ, Max Lab, Lund, Sweden. [Lockard, J. V.; Chen, L. X.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Chen, L. X.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. RP Smolentsev, G (reprint author), Lund Univ, Dept Chem Phys, POB 124, SE-22100 Lund, Sweden. EM smolentsev@yandex.ru RI Canton, Sophie/A-8432-2016 FU ERC [226136]; Swedish Research Council; Division of Chemical Sciences, Office of Basic Energy Sciences, The U.S. Department of Energy [DE-AC02-06CH11357]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work is supported by ERC Advanced investigator grant to V. Sundstrom: VISCHEM 226136, the Swedish Research Council and by the Division of Chemical Sciences, Office of Basic Energy Sciences, The U.S. Department of Energy under contracts DE-AC02-06CH11357. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors would like to thank K. Attenkofer and X. Zhang for their help during the experiments and S. Ott and R.M.C. Rodrigues for the synthesis of RuCo sample. NR 26 TC 9 Z9 9 U1 0 U2 18 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 APR PY 2011 VL 184 IS 3-6 SI SI BP 125 EP 128 DI 10.1016/j.elspec.2011.01.010 PG 4 WC Spectroscopy SC Spectroscopy GA 784QN UT WOS:000292173400009 ER PT J AU Gordon, RA Seidler, GT Fister, TT Nagle, KP AF Gordon, R. A. Seidler, G. T. Fister, T. T. Nagle, K. P. TI Studying low-energy core-valence transitions with bulk sensitivity using q-dependent NIXS SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE Inelastic X-ray scattering; Mixed valence; Spectroscopy ID CE COMPOUNDS; PHOTOABSORPTION SPECTRA; SPECTROSCOPY; SPECTROMETER; EXCITATIONS; OXIDATION; SYSTEMS; CERIUM AB Absorption-based studies of low-energy atomic edges possess an inherent challenge in distinguishing surface and bulk contributions to the measured signal. The nature of the absorption process itself, being predominantly dipole in character, can also be a limiting factor in understanding electronic structure, particularly for correlated-electron systems. Non-resonant inelastic X-ray scattering (NIXS) provides a complementary means to soft X-ray absorption (XAS) methods in the study of low-energy excitations. The use of higher-energy X-rays (similar to 10 keV) enables bulk-sensitive measurements. Modern instrumentation and synchrotron facilities permit experiments with access to transitions not only in the dipole-transition regime but also those of higher-order. Access to these non-dipole transitions provides an additional perspective into the electronic behavior of materials. Such experiments will be illustrated using rare earth materials and excitations corresponding to M, N and O edges, with emphasis on the sensitivity to 4F-occupation in cerium-based materials. (C) 2010 Elsevier B.V. All rights reserved. C1 [Gordon, R. A.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada. [Gordon, R. A.; Seidler, G. T.; Nagle, K. P.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Fister, T. T.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Gordon, RA (reprint author), Simon Fraser Univ, Dept Phys, 8888 Univ Dr, Burnaby, BC V5A 1S6, Canada. EM ragordon@sfu.ca RI Seidler, Gerald/I-6974-2012 FU U.S. DOE - BES; Office of Naval Research; Bosack and Kruger Foundation; NSERC of Canada; NSERC; University of Washington; Simon Fraser University; Advanced Photon Source FX This work was supported by the U.S. DOE - BES, the Office of Naval Research, the Bosack and Kruger Foundation and NSERC of Canada. PNC/XSD facilities at the Advanced Photon Source, and research at these facilities, are supported by the U.S. DOE - BES, a major resources support grant from NSERC, the University of Washington, Simon Fraser University and the Advanced Photon Source. NR 25 TC 10 Z9 10 U1 2 U2 17 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 APR PY 2011 VL 184 IS 3-6 SI SI BP 220 EP 223 DI 10.1016/j.elspec.2010.12.007 PG 4 WC Spectroscopy SC Spectroscopy GA 784QN UT WOS:000292173400031 ER PT J AU Demchenko, IN Chernyshova, M Tyliszczak, T Denlinger, JD Yu, KM Speaks, DT Hemmers, O Walukiewicz, W Derkachov, G Lawniczak-Jablonska, K AF Demchenko, I. N. Chernyshova, M. Tyliszczak, T. Denlinger, J. D. Yu, K. M. Speaks, D. T. Hemmers, O. Walukiewicz, W. Derkachov, G. Lawniczak-Jablonska, K. TI Electronic structure of CdO studied by soft X-ray spectroscopy SO JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA LA English DT Article DE XANES; FEFF; RIXS ID SCATTERING; FILMS AB We present X-ray absorption spectroscopy (XAS) and resonance inelastic X-ray scattering (RIXS) measurements of CdO thin film. The observed differences between bulk and surface XAS signals suggest the presence of a surface electron accumulation layer in CdO film. The native defects (oxygen vacancies) strongly influence on the electronic structure of CdO resulting in the absorption threshold position/onset and spectral profile changes. To interpret the obtained data ab initio theoretical calculations, using the FEFF code, were performed and compared to the experimental results. The calculated angular-momentum-projected local density of states (PDOS) describes well the experimental data. The direct and indirect gaps of CdO were estimated to be similar to 2.4 eV and similar to 0.9 eV, respectively, by overlapping the XAS spectrum with RIXS. These results are consistent with our optical absorption measurements as well as theoretical and experimental band gap values of CdO reported in the literature. (C) 2010 Elsevier B.V. All rights reserved. C1 [Demchenko, I. N.] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. [Demchenko, I. N.; Tyliszczak, T.; Denlinger, J. D.; Yu, K. M.; Speaks, D. T.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Demchenko, I. N.; Derkachov, G.; Lawniczak-Jablonska, K.] Inst Phys PAS, PL-02668 Warsaw, Poland. [Chernyshova, M.] Inst Plasma Phys & Laser Microfus, PL-01497 Warsaw, Poland. [Speaks, D. T.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Hemmers, O.] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89514 USA. RP Demchenko, IN (reprint author), Univ Nevada, Dept Chem, 4505 Maryland Pkwy,Box 454003, Las Vegas, NV 89154 USA. EM INDemchenko@lbl.gov RI Yu, Kin Man/J-1399-2012; Lawniczak-Jablonska, Krystyna/J-8994-2012; Derkachov, Gennadiy/S-7773-2016 OI Yu, Kin Man/0000-0003-1350-9642; Lawniczak-Jablonska, Krystyna/0000-0003-1042-570X; FU Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX The authors wish to thank the staff of the Advanced Light Source for their excellent support (especially W. Yang). This work was performed at the Advanced Light Source which is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Material synthesis and characterization were supported by the same foundation. NR 23 TC 8 Z9 8 U1 0 U2 22 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 APR PY 2011 VL 184 IS 3-6 SI SI BP 249 EP 253 DI 10.1016/j.elspec.2010.09.011 PG 5 WC Spectroscopy SC Spectroscopy GA 784QN UT WOS:000292173400038 ER PT J AU Blanchette, C Hoeprich, P Fischer, N AF Blanchette, Craig Hoeprich, Paul Fischer, Nicholas TI Nanolipoprotein particles as vaccine platforms for co-localization of adjuvants and subunit antigens SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Blanchette, Craig; Hoeprich, Paul; Fischer, Nicholas] Lawrence Livermore Natl Lab, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 106.10 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751704053 ER PT J AU Davis, R Kozina, C Branda, S Rempe, S AF Davis, Ryan Kozina, Carol Branda, Steve Rempe, Susan TI Lipopolysaccharide-induced molecular interactions of the TLR4 signaling complex and the BK potassium channel SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Davis, Ryan; Kozina, Carol; Branda, Steve] Sandia Natl Labs, Livermore, CA USA. [Rempe, Susan] Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 113.16 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751705014 ER PT J AU El-Etr, S Vergez, L Rasley, A AF El-Etr, Sahar Vergez, Lisa Rasley, Amy TI Differential intracellular trafficking of Francisella tularensis strains in human dendritic cells. SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [El-Etr, Sahar; Vergez, Lisa; Rasley, Amy] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 56.15 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751701114 ER PT J AU Ganusov, V Goonetilleke, N Liu, M Ferrari, G Shaw, G McMichael, A Borrow, P Korber, B Perelson, A AF Ganusov, Vitaly Goonetilleke, Nilu Liu, Michael Ferrari, Guido Shaw, George McMichael, Andrew Borrow, Persephone Korber, Bette Perelson, Alan TI Fitness costs and diversity of CTL response determine the rate of CTL escape during the acute and chronic phases of HIV infection SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Ganusov, Vitaly] Univ Tennessee, Microbiol, Knoxville, TN USA. [Ganusov, Vitaly; Korber, Bette; Perelson, Alan] Los Alamos Natl Lab, Los Alamos, NM USA. [Goonetilleke, Nilu; Liu, Michael; McMichael, Andrew; Borrow, Persephone] Univ Oxford, Oxford, England. [Shaw, George] Univ Alabama Birmingham, Birmingham, AL USA. [Ferrari, Guido] Duke Univ, Med Ctr, Durham, NC USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 105.23 PG 2 WC Immunology SC Immunology GA V44LY UT WOS:000209751703196 ER PT J AU Manz, B Jackson, B Petit, R Dustin, M Groves, J AF Manz, Boryana Jackson, Bryan Petit, Rebecca Dustin, Michael Groves, Jay TI T cell triggering thresholds are modulated by the number of antigen within individual T cell receptor clusters SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Manz, Boryana; Jackson, Bryan; Petit, Rebecca; Groves, Jay] Univ Calif Berkeley, HHMI, Berkeley, CA 94720 USA. [Jackson, Bryan; Petit, Rebecca; Groves, Jay] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Dustin, Michael] NYU, Skirball Inst, New York, NY USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 109.20 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751704091 ER PT J AU Mungall, C Haendel, M Chatr-aryamontri, A Oughtred, R Rust, J AF Mungall, Chris Haendel, M. Chatr-aryamontri, A. Oughtred, R. Rust, J. TI A free NCRR resource for finding and using human disease models SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Mungall, Chris] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Haendel, M.] Oregon Hlth & Sci Univ, Portland, OR 97201 USA. [Chatr-aryamontri, A.] Univ Edinburgh, Edinburgh, Midlothian, Scotland. [Oughtred, R.; Rust, J.] Princeton Univ, Princeton, NJ 08544 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 65.46 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751702113 ER PT J AU Rasley, A Blanchette, C Fischer, N El-Etr, S Loots, G Corzett, M Thomas, C Urbin, S AF Rasley, Amy Blanchette, Craig Fischer, Nicholas El-Etr, Sahar Loots, Gabriela Corzett, Michele Thomas, Cindy Urbin, Salustra TI Innate immune agonists conjugated to nanolipoproteins elicit robust inflammatory responses in mouse macrophages: implications for host-based therapeutics. SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Rasley, Amy; Blanchette, Craig; Fischer, Nicholas; El-Etr, Sahar; Loots, Gabriela; Corzett, Michele; Thomas, Cindy; Urbin, Salustra] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 52.10 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751701036 ER PT J AU Smallwood, H Lopez-Ferrer, D Zink, E Pasa-Tolic, L Thomas, P AF Smallwood, Heather Lopez-Ferrer, Daniel Zink, Erika Pasa-Tolic, Ljiljana Thomas, Paul TI Novel quantitative proteomic analysis of influenza infected dendritic cells reveals a previously unappreciated immune modulatory protein and infection induced differential expression of DC proteins, with unexpectedly high membrane protein dynamics. SO JOURNAL OF IMMUNOLOGY LA English DT Meeting Abstract C1 [Smallwood, Heather; Thomas, Paul] St Jude Childrens Res Hosp, Memphis, TN 38105 USA. [Lopez-Ferrer, Daniel; Zink, Erika; Pasa-Tolic, Ljiljana] Pacific NW Natl Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 EI 1550-6606 J9 J IMMUNOL JI J. Immunol. PD APR PY 2011 VL 186 SU 1 MA 110.24 PG 1 WC Immunology SC Immunology GA V44LY UT WOS:000209751704132 ER PT J AU Fore, S Chan, J Taylor, D Huser, T AF Fore, Samantha Chan, James Taylor, Douglas Huser, Thomas TI Raman spectroscopy of individual monocytes reveals that single-beam optical trapping of mononuclear cells occurs by their nucleus SO JOURNAL OF OPTICS LA English DT Article DE monocytes; Raman spectroscopy; laser tweezers; single-cell spectroscopy ID IN-VIVO; CANCER-DIAGNOSIS; LIVING CELLS; IDENTIFICATION; FLUORESCENCE AB We show that laser tweezers Raman spectroscopy of eukaryotic cells with a significantly larger diameter than the tight focus of a single-beam laser trap leads to optical trapping of the cell by its optically densest part, i.e. typically the cell's nucleus. Raman spectra of individual optically trapped monocytes are compared with location-specific Raman spectra of monocytes adhered to a substrate. When the cell's nucleus is stained with a fluorescent live cell stain, the Raman spectrum of the DNA-specific stain is observed only in the nucleus of individual monocytes. Optically trapped monocytes display the same behavior. We also show that the Raman spectra of individual monocytes exhibit the characteristic Raman signature of cells that have not yet fully differentiated and that individual primary monocytes can be distinguished from transformed monocytes based on their Raman spectra. This work provides further evidence that laser tweezers Raman spectroscopy of individual cells provides meaningful biochemical information in an entirely non-destructive fashion that permits discerning differences between cell types and cellular activity. C1 [Fore, Samantha; Chan, James; Taylor, Douglas; Huser, Thomas] Univ Calif Davis, NSF, Ctr Biophoton Sci & Technol, Sacramento, CA 95817 USA. [Chan, James] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA. [Huser, Thomas] Univ Calif Davis, Dept Internal Med, Sacramento, CA 95817 USA. RP Fore, S (reprint author), Univ Calif Davis, NSF, Ctr Biophoton Sci & Technol, Sacramento, CA 95817 USA. RI Huser, Thomas/H-1195-2012; Chan, James/J-3829-2014 OI Huser, Thomas/0000-0003-2348-7416; FU National Science Foundation; University of California, Davis [PHY 0120999]; Keaton-Raphael Foundation for Childhood Cancer; Clinical Translational Science Center from the National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH) [UL1 RR024146]; NIH Roadmap for Medical Research; LLNL Laboratory; US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was supported in part by funding from the National Science Foundation. The Center for Biophotonics Science and Technology is managed by the University of California, Davis, under Cooperative Agreement no. PHY 0120999. Additional funding was provided by a gift from the Keaton-Raphael Foundation for Childhood Cancer. TH also acknowledges support by the Clinical Translational Science Center under grant no. UL1 RR024146 from the National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH), and the NIH Roadmap for Medical Research. JWC acknowledges support from the LLNL Laboratory-directed Research and Development Program. Work at LLNL was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. NR 21 TC 10 Z9 10 U1 1 U2 14 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 2040-8978 J9 J OPTICS-UK JI J. Opt. PD APR PY 2011 VL 13 IS 4 SI SI AR 044021 DI 10.1088/2040-8978/13/4/044021 PG 9 WC Optics SC Optics GA 781JH UT WOS:000291926500022 PM 21984959 ER PT J AU Jetter, RI Sham, TL Swindeman, RW AF Jetter, R. I. Sham, T-L Swindeman, R. W. TI Application of Negligible Creep Criteria to Candidate Materials for HTGR Pressure Vessels SO JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article AB Two of the proposed high temperature gas reactors (HTGRs) under consideration for a demonstration plant have the design object of avoiding creep effects in the reactor pressure vessel during normal operation. This work addresses the criteria for negligible creep in subsection NH, Division 1 of the ASME Boiler and Pressure Vessel Code, Sec. III, other international design codes, and some currently suggested criteria modifications and their impact on permissible operating temperatures for various reactor pressure vessel materials. The goal of negligible creep could have different interpretations depending on what failure modes are considered and associated criteria for avoiding the effects of creep. It is shown that for the materials of this study, consideration of localized damage due to cycling of peak stresses results in a lower temperature for negligible creep than consideration of the temperature at which the allowable stress is governed by the creep properties. In assessing the effect of localized cyclic stresses, it is also shown that consideration of cyclic softening is an important effect that results in a higher estimated temperature for the onset of significant creep effects than would be the case if the material were cyclically hardening. There are other considerations for the selection of vessel material besides avoiding creep effects. Of interest for this review are (1) the material's allowable stress level and impact on the wall thickness (the goal being to minimize the required wall thickness) and (2) ASME code approval (inclusion as a permitted material in the relevant section and subsection of interest) to expedite regulatory review and approval. The application of negligible creep criteria to two of the candidate materials, SA533 and Mod 9Cr-1Mo (also referred to as Grade 91), and to a potential alternate, normalized and tempered 2(1)/(4) Cr-1Mo, is illustrated, and the relative advantages and disadvantages of the materials are discussed. [DOI: 10.1115/1.4001919] C1 [Sham, T-L] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Swindeman, R. W.] Cromtech Inc, Oak Ridge, TN 37830 USA. RP Jetter, RI (reprint author), 1106 Wildcat Canyon Rd, Pebble Beach, CA 93953 USA. EM shamt@ORNL.gov NR 17 TC 2 Z9 2 U1 0 U2 4 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-9930 J9 J PRESS VESS-T ASME JI J. Press. Vessel Technol.-Trans. ASME PD APR PY 2011 VL 133 IS 2 AR 021103 DI 10.1115/1.4001919 PG 7 WC Engineering, Mechanical SC Engineering GA 735BQ UT WOS:000288388800007 ER PT J AU Cale, EM Hraber, P Giorgi, EE Fischer, W Bhattacharya, T Leitner, T Yeh, WW Gleasner, C Green, LD Han, CS Korber, B Letvin, NL AF Cale, Evan M. Hraber, Peter Giorgi, Elena E. Fischer, Will Bhattacharya, Tanmoy Leitner, Thomas Yeh, Wendy W. Gleasner, Cheryl Green, Lance D. Han, Cliff S. Korber, Bette Letvin, Norman L. TI Epitope-Specific CD8(+) T Lymphocytes Cross-Recognize Mutant Simian Immunodeficiency Virus (SIV) Sequences but Fail To Contain Very Early Evolution and Eventual Fixation of Epitope Escape Mutations during SIV Infection SO JOURNAL OF VIROLOGY LA English DT Article ID CD8-T-CELL MEMORY; TYPE-1 INFECTION; CD4-T-CELL HELP; CELL RESPONSES; RHESUS-MONKEYS; VARIANTS; VIREMIA; MAMU-A-ASTERISK-02; PROGRESSION; GENERATION AB Human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) evade containment by CD8(+) T lymphocytes through focused epitope mutations. However, because of limitations in the numbers of viral sequences that can be sampled, traditional sequencing technologies have not provided a true representation of the plasticity of these viruses or the intensity of CD8(+) T lymphocyte-mediated selection pressure. Moreover, the strategy by which CD8(+) T lymphocytes contain evolving viral quasispecies has not been characterized fully. In the present study we have employed ultradeep 454 pyrosequencing of virus and simultaneous staining of CD8(+) T lymphocytes with multiple tetramers in the SIV/rhesus monkey model to explore the coevolution of virus and the cellular immune response during primary infection. We demonstrated that cytotoxic T lymphocyte (CTL)-mediated selection pressure on the infecting virus was manifested by epitope mutations as early as 21 days following infection. We also showed that CD8(+) T lymphocytes cross-recognized wild-type and mutant epitopes and that these cross-reactive cell populations were present at a time when mutant forms of virus were present at frequencies of as low as 1 in 22,000 sequenced clones. Surprisingly, these cross-reactive cells became enriched in the epitope-specific CD8(+) T lymphocyte population as viruses with mutant epitope sequences largely replaced those with epitope sequences of the transmitted virus. These studies demonstrate that mutant epitope-specific CD8(+) T lymphocytes that are present at a time when viral mutant epitope sequences are detected at extremely low frequencies fail to contain the later accumulation and fixation of the mutant epitope sequences in the viral quasispecies. C1 [Cale, Evan M.; Yeh, Wendy W.; Letvin, Norman L.] Harvard Univ, Div Viral Pathogenesis, Sch Med, Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA. [Gleasner, Cheryl; Green, Lance D.; Han, Cliff S.] Los Alamos Natl Lab, DOE Joint Genome Inst, Los Alamos, NM 87545 USA. RP Letvin, NL (reprint author), Harvard Univ, Div Viral Pathogenesis, Sch Med, Beth Israel Deaconess Med Ctr, 330 Brookline Ave,E-CLS 1043, Boston, MA 02215 USA. EM nletvin@bidmc.harvard.edu RI Fischer, Will/B-1323-2013; Bhattacharya, Tanmoy/J-8956-2013; OI Fischer, Will/0000-0003-4579-4062; Bhattacharya, Tanmoy/0000-0002-1060-652X; Korber, Bette/0000-0002-2026-5757; Hraber, Peter/0000-0002-2920-4897 FU NIAID Center for HIV/AIDS Vaccine Immunology [AI067854]; LANL Laboratory Directed Research and Development FX This work was supported by NIAID Center for HIV/AIDS Vaccine Immunology grant AI067854 and the LANL Laboratory Directed Research and Development. NR 35 TC 18 Z9 18 U1 0 U2 4 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0022-538X J9 J VIROL JI J. Virol. PD APR PY 2011 VL 85 IS 8 BP 3746 EP 3757 DI 10.1128/JVI.02420-10 PG 12 WC Virology SC Virology GA 736ZV UT WOS:000288536100005 PM 21307185 ER PT J AU Ward, G Mistrick, R Lee, ES McNeil, A Jonsson, J AF Ward, G. Mistrick, R. Lee, E. S. McNeil, A. Jonsson, J. TI Simulating the Daylight Performance of Complex Fenestration Systems Using Bidirectional Scattering Distribution Functions within Radiance SO LEUKOS LA English DT Article DE complex fenestration systems (CFS); bidirectional scattering distribution function (BSDF); Radiance software; windows; daylighting systems; shading systems; energy ID ILLUMINATION AB We describe two methods which rely on bidirectional scattering distribution functions (BSDFs) to model the daylighting performance of complex fenestration systems (CFS), enabling greater flexibility and accuracy in evaluating arbitrary assemblies of glazing, shading, and other optically-complex coplanar window systems. Two tools within Radiance enable a) efficient annual performance evaluations of CFS, and b) accurate renderings of CFS despite the loss of spatial resolution associated with low-resolution BSDF datasets for inhomogeneous systems. Validation, accuracy, and limitations of the methods are discussed. C1 [Ward, G.] Anyhere Software, Berkeley, CA 94708 USA. [Mistrick, R.] Penn State Univ, University Pk, PA 16802 USA. [Lee, E. S.; McNeil, A.; Jonsson, J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Bldg Technol Program, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Ward, G (reprint author), Anyhere Software, 950 Creston Rd, Berkeley, CA 94708 USA. RI McNeil, Andrew/I-9530-2014 OI McNeil, Andrew/0000-0001-9994-9002 FU U.S. Department of Energy [DE-AC02-05CH11231]; IT Division at the Lawrence Berkeley National Laboratory (Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy) [DE-AC02-05CH11231] FX We gratefully acknowledge the contributions of Marilyne Andersen, Ecole Polytechnique Federale de Lausanne, toward the validation of this new capability. This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies Program, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. This research used the Lawrencium computational cluster resource provided by the IT Division at the Lawrence Berkeley National Laboratory (Supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231). NR 16 TC 23 Z9 23 U1 0 U2 3 PU ILLUMINAT ENG SOC NORTH AMER PI NEW YORK PA 120 WALL ST, 17TH FL, NEW YORK, NY 10005-4001 USA SN 1550-2724 J9 LEUKOS JI Leukos PD APR PY 2011 VL 7 IS 4 BP 241 EP 261 PG 21 WC Construction & Building Technology; Optics SC Construction & Building Technology; Optics GA 907ON UT WOS:000301427300005 ER PT J AU Kaiser, SA Frank, JH AF Kaiser, Sebastian A. Frank, Jonathan H. TI The effects of laser-sheet thickness on dissipation measurements in turbulent non-reacting jets and jet flames SO MEASUREMENT SCIENCE AND TECHNOLOGY LA English DT Article DE scalar dissipation; turbulent flow; planar imaging; resolution; noise ID FINE-SCALE STRUCTURE; RAYLEIGH-SCATTERING; SPATIAL-RESOLUTION; MIXTURE FRACTION; DIFFUSION FLAME; PASSIVE SCALAR; NEAR-FIELD; FLOWS; TEMPERATURE; DERIVATIVES AB The effects of laser-sheet thickness on planar laser measurements of scalar gradients in turbulent flows are studied. Experiments are performed in the near field of a turbulent, non-premixed, axisymmetric jet flame and in the near field of a non-reacting, isothermal turbulent jet. Laser Rayleigh scattering provides two-dimensional measurements of the instantaneous temperature and mixture fraction fields in the flame and non-reacting jet, respectively. The effect of spatial resolution on measurements of the mean dissipation and the power spectral density of axial temperature and mixture-fraction gradients is examined. The effect of varying the laser-sheet thickness is compared to that of spatial filtering within the image plane. Measurements of the mean dissipation and power spectral density are significantly less sensitive to resolution degradation in the non-differentiated dimensions than in the differentiated dimension. For example, on the jet flame centreline, the dissipation-cut-off microscale, which is determined from the measured power spectral density, is overestimated by 9% when the beam-waist thickness is increased from a 1/e-squared width of 160 mu m to 624 mu m. In contrast, spatial filtering along the direction of differentiation with a smoothing kernel of 624 mu m width produces a bias of 76% in the cut-off microscale. These results experimentally confirm the theoretical analysis of previous studies. A simple spatial model illustrates the origin of this difference and approximately predicts its magnitude for both planar and line measurements. A criterion for matching in-plane and out-of-plane resolution is established. For many planar gradient measurements, considerably less out-of-plane resolution is needed than in-plane resolution. The combined effects of noise and spatial averaging on the dissipation measurements are also briefly examined. C1 [Kaiser, Sebastian A.; Frank, Jonathan H.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Kaiser, SA (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. EM sebastian.kaiser@uni-due.de; jhfrank@sandia.gov FU US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; US Department of Energy [DE-AC04-94-AL85000] FX The authors thank Dr G H Wang for helpful discussions and R J Sigurdsson for excellent technical assistance in the laboratory. This research was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy under contract DE-AC04-94-AL85000. NR 36 TC 8 Z9 8 U1 1 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-0233 EI 1361-6501 J9 MEAS SCI TECHNOL JI Meas. Sci. Technol. PD APR PY 2011 VL 22 IS 4 AR 045403 DI 10.1088/0957-0233/22/4/045403 PG 15 WC Engineering, Multidisciplinary; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 735XR UT WOS:000288454500018 ER PT J AU Song, B Antoun, BR Connelly, K Korellis, J Lu, WY AF Song, Bo Antoun, Bonnie R. Connelly, Kevin Korellis, John Lu, Wei-Yang TI Improved Kolsky tension bar for high-rate tensile characterization of materials SO MEASUREMENT SCIENCE AND TECHNOLOGY LA English DT Article DE Kolsky tension bar; stress wave; dynamic tensile characterization; stress-strain response ID HOPKINSON PRESSURE BAR; PULSE SHAPING TECHNIQUES; STRAIN; COMPRESSION AB A new Kolsky tension bar has been re-designed and developed at Sandia National Laboratories, CA. The new design uses the concept that a solid striker is fired to impact an end cap attached to the open end of the gun barrel to generate dynamic tensile loading. The gun barrel here serves as part of the loading device. The incident bar that is connected to the gun barrel and the transmission bar follow the design similar to the Kolsky compression bar. The bar supporting and aligning systems are the same as those in the Kolsky compression bar design described by Song et al (2009 Meas. Sci. Technol. 20 115701). Due to the connection complication among the gun barrel, bars and specimen, stress-wave propagation in the new Kolsky tension bar system is comprehensively analyzed. Based on the stress-wave analysis, the strain gage location on the incident bar needs to be carefully determined. A highly precise laser-beam measurement system is recommended to directly measure the displacement of the incident bar end. Dynamic tensile characterization of a 4330-V steel using this new Kolsky tension bar is presented as an example. C1 [Song, Bo; Antoun, Bonnie R.; Connelly, Kevin; Korellis, John; Lu, Wei-Yang] Sandia Natl Labs, Livermore, CA 94551 USA. RP Song, B (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. RI Song, Bo/D-3945-2011 FU United States Department of Energy [DE-AC04-94AL85000] FX 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 19 TC 7 Z9 7 U1 1 U2 11 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-0233 EI 1361-6501 J9 MEAS SCI TECHNOL JI Meas. Sci. Technol. PD APR PY 2011 VL 22 IS 4 AR 045704 DI 10.1088/0957-0233/22/4/045704 PG 7 WC Engineering, Multidisciplinary; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 735XR UT WOS:000288454500025 ER PT J AU Bond-Watts, BB Bellerose, RJ Chang, MCY AF Bond-Watts, Brooks B. Bellerose, Robert J. Chang, Michelle C. Y. TI Enzyme mechanism as a kinetic control element for designing synthetic biofuel pathways SO NATURE CHEMICAL BIOLOGY LA English DT Article ID CLOSTRIDIUM-ACETOBUTYLICUM ATCC-824; ALCALIGENES-EUTROPHUS H16; FATTY-ACID BIOSYNTHESIS; ESCHERICHIA-COLI; BUTANOL PRODUCTION; TRANS-2-ENOYL-COA REDUCTASE; MICROBIAL-PRODUCTION; ACETONE FORMATION; EXPRESSION; BACTERIA AB Living systems have evolved remarkable molecular functions that can be redesigned for in vivo chemical synthesis as we gain a deeper understanding of the underlying biochemical principles for de novo construction of synthetic pathways. We have focused on developing pathways for next-generation biofuels as they require carbon to be channeled to product at quantitative yields. However, these fatty acid-inspired pathways must manage the highly reversible nature of the enzyme components. For targets in the biodiesel range, the equilibrium can be driven to completion by physical sequestration of an insoluble product, which is a mechanism unavailable to soluble gasoline-sized products. In this work, we report the construction of a chimeric pathway assembled from three different organisms for the high-level production of n-butanol (4,650 +/- 720 mg l(-1)) that uses an enzymatic chemical reaction mechanism in place of a physical step as a kinetic control element to achieve high yields from glucose (28%). C1 [Bond-Watts, Brooks B.; Bellerose, Robert J.; Chang, Michelle C. Y.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Bond-Watts, Brooks B.; Bellerose, Robert J.; Chang, Michelle C. Y.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Chang, Michelle C. Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Bond-Watts, BB (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM mcchang@berkeley.edu FU Aldo DeBenedictis Fund; University of California, Berkeley; Camille and Henry Dreyfus Foundation; Arnold and Mabel Beckman Foundation; Dow Sustainable Products and Solutions Program FX We thank K. Hirano for her work on the ter gene assembly during her rotation. B.B.B.-W. would like to thank the Aldo DeBenedictis Fund for a predoctoral fellowship, and R.J.B. would like to acknowledge the University of California, Berkeley, Summer Undergraduate Research Fellowship program. This work was funded by generous support from University of California, Berkeley, the Camille and Henry Dreyfus Foundation, the Arnold and Mabel Beckman Foundation and the Dow Sustainable Products and Solutions Program. NR 50 TC 175 Z9 188 U1 12 U2 99 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1552-4450 EI 1552-4469 J9 NAT CHEM BIOL JI Nat. Chem. Biol. PD APR PY 2011 VL 7 IS 4 BP 222 EP 227 DI 10.1038/NCHEMBIO.537 PG 6 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 737CC UT WOS:000288545000010 PM 21358636 ER PT J AU Gibbs, GV Wallace, AF Downs, RT Ross, NL Cox, DF Rosso, KM AF Gibbs, G. V. Wallace, A. F. Downs, R. T. Ross, N. L. Cox, D. F. Rosso, K. M. TI Thioarsenides: a case for long-range Lewis acid-base-directed van der Waals interactions SO PHYSICS AND CHEMISTRY OF MINERALS LA English DT Article DE Realgar; Pararealgar; Dimorphite; Uzonite; Alacranite ID CRYSTAL X-RAY; BONDED INTERACTIONS; MOLECULAR RECOGNITION; ARSENIC SULFIDES; CHARGE-DENSITY; FORCES; CHLORINE; REALGAR; AS4S4; LIGHT AB Electron density distributions, bond paths, Laplacian and local-energy density properties have been calculated for a number of As(4)S (n) (n = 3, 4 and 5) thioarsenide molecular crystals. On the basis of the distributions, the intramolecular As-S and As-As interactions classify as shared bonded interactions, and the intermolecular As-S, As-As and S-S interactions classify as closed-shell van der Waals (vdW) bonded interactions. The bulk of the intermolecular As-S bond paths link regions of locally concentrated electron density (Lewis-base regions) with aligned regions of locally depleted electron density (Lewis-acid regions) on adjacent molecules. The paths are comparable with intermolecular paths reported for several other molecular crystals that link aligned Lewis base and acid regions in a key-lock fashion, interactions that classified as long-range Lewis acid-base-directed vdW interactions. As the bulk of the intermolecular As-S bond paths (similar to 70%) link Lewis acid-base regions on adjacent molecules, it appears that molecules adopt an arrangement that maximizes the number of As-S Lewis acid-base intermolecular bonded interactions. The maximization of the number of Lewis acid-base interactions appears to be connected with the close-packed array adopted by molecules: distorted cubic close-packed arrays are adopted for alacranite, pararealgar, uzonite, realgar and beta-AsS and the distorted hexagonal close-packed arrays adopted by alpha- and beta-dimorphite. A growth mechanism is proposed for thioarsenide molecular crystals from aqueous species that maximizes the number of long-range Lewis acid-base vdW As-S bonded interactions with the resulting directed bond paths structuralizing the molecules as a molecular crystal. C1 [Gibbs, G. V.; Ross, N. L.] Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA. [Gibbs, G. V.; Ross, N. L.] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA. [Gibbs, G. V.; Ross, N. L.] Virginia Tech, Dept Math, Blacksburg, VA 24061 USA. [Wallace, A. F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Downs, R. T.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA. [Cox, D. F.] Virginia Tech, Dept Chem Engn, Blacksburg, VA 24061 USA. [Rosso, K. M.] Pacific NW Natl Lab, Chem & Mat Sci Div, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. RP Gibbs, GV (reprint author), Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA. EM ggibbs@vt.edu RI Wallace, Adam/A-9976-2012 FU National Science Foundation; US Department of Energy [EAR-0609885, EAR-0609906, DE-FG02-97ER14751]; US Department of Energy (DOE), Office of Basic Energy Sciences, Geoscience Division; Environmental Molecular Sciences Laboratory (EMSL) at the Pacific Northwest National Laboratory (PNNL); US DOE Office of Biological and Environmental Research; DOE [DEAC06-76RLO 1830] FX The National Science Foundation and the US Department of Energy are thanked for supporting this study with Grants EAR-0609885 (N.L.R. and G. V. G.), EAR-0609906 (R. T. D.), and DE-FG02-97ER14751 (D. F. C.). K. M. R. acknowledges a grant from the US Department of Energy (DOE), Office of Basic Energy Sciences, Geoscience Division and computational facilities and support from the Environmental Molecular Sciences Laboratory (EMSL) at the Pacific Northwest National Laboratory (PNNL). The computations were performed in part at the EMSL at PNNL. The EMSL is a national scientific user facility sponsored by the US DOE Office of Biological and Environmental Research. PNNL is operated by Battelle for the DOE under contract DEAC06-76RLO 1830. GVG wishes to thank his good friend and colleague Professor Michael Hochella for reading a preliminary draft of the manuscript and contributing to the discussion of the growth mechanism for a thioarsenide molecular crystal that maximizes the number of long-range Lewis acid-base vdW As-S bonded interactions. He also wishes to thank Professors Richard F. W. Bader at McMaster University, Ontario, Canada and Vladimir Tsirelson at Mendelev University of Chemical Technology, Moscow, Russia for useful discussions related to van der Waals bonded interactions. We also want to thank Professor Emil Makovicky at University of Copenhagen, Copenhagen, Denmark for his careful review of the manuscript, his suggested changes and his insightful comments on the connection between micelles and directed bond paths. NR 76 TC 6 Z9 6 U1 1 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0342-1791 J9 PHYS CHEM MINER JI Phys. Chem. Miner. PD APR PY 2011 VL 38 IS 4 BP 267 EP 291 DI 10.1007/s00269-010-0402-3 PG 25 WC Materials Science, Multidisciplinary; Mineralogy SC Materials Science; Mineralogy GA 736QJ UT WOS:000288508900003 ER PT J AU Rubenstein, R Chang, BG Gray, P Piltch, M Bulgin, MS Sorensen-Melson, S Mille, MW AF Rubenstein, Richard Chang, Binggong Gray, Perry Piltch, Martin Bulgin, Marie S. Sorensen-Melson, Sharon Mille, Michael W. TI SOFIA: An Assay Platform for Ultrasensitive Detection of PrPSc in Brain and Blood SO PRION LA English DT Meeting Abstract C1 [Rubenstein, Richard; Chang, Binggong] Suny Downstate Med Ctr, Brooklyn, NY 11203 USA. [Gray, Perry; Piltch, Martin] Los Alamos Natl Labs, Los Alamos, NM USA. [Bulgin, Marie S.; Sorensen-Melson, Sharon] Univ Idaho, Caldwell, ID USA. [Mille, Michael W.] Colorado Div Wildlife, Ft Collins, CO 80526 USA. EM richard.rubenstein@downstate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU LANDES BIOSCIENCE PI AUSTIN PA 1806 RIO GRANDE ST, AUSTIN, TX 78702 USA SN 1933-6896 EI 1933-690X J9 PRION JI Prion PD APR-JUN PY 2011 VL 5 SU S MA Risk.39 BP 138 EP 139 PG 2 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA V34DE UT WOS:000209066300314 ER PT J AU Hemraj-Benny, T Chauhan, M Zhang, LH Wong, CK Singh, G Kim, E Ahn, E AF Hemraj-Benny, Tirandai Chauhan, Moni Zhang, Lihua Wong, Chi Kwan Singh, Gurpreet Kim, Eunchul Ahn, Esther TI Synthesis and Characterization of Novel Hybrids of Tris[3-(trimethoxysilyl)propyl] Isocyanurate (TTPI) Capped Palladium Nanoparticles and Single-Walled Carbon Nanotubes SO SILICON LA English DT Article DE Single Walled Carbon Nanotubes (SWNTs); Pd-Nanoparticle; Nanosized metal; Tris[3-(trimethoxysilyl)propyl] Isocyanurate; Conjugates; Catalyst ID SUZUKI COUPLING REACTIONS; HETEROGENEOUS CATALYSIS; SELECTIVE HYDROGENATION; SUPERCRITICAL-FLUID; METAL; PD; OLEFINS; HECK; NANOCOMPOSITES; MICROEMULSION AB The conjugation of nanoparticles to carbon nanotubes (CNTs) involves various steps including premodification of the nanotubes, which is known to be a very tedious process and sometimes leads to a mixture of products. In this regard, a direct route to generate such conjugates is a worthwhile endeavor. In this paper, we report a novel, mild, one-pot, approach to a controlled and direct coordination of Pd nanoparticles (Pd NPs) onto the surface of single walled carbon nanotubes (SWNTs), without any pre-modification of the SWNTs surface. We also present detailed characterization of the SWNT-Pd NP hybrid systems using High Resolution Transmission Electron Microscopy (HRTEM), Energy Dispersive X-ray Spectroscopy (EDS), Mid-Infrared Spectroscopy (Mid-IR) and UV-Visible Spectroscopy (UV-vis) along with the stability studies of the nanoconjugates. C1 [Hemraj-Benny, Tirandai; Chauhan, Moni; Wong, Chi Kwan; Singh, Gurpreet; Kim, Eunchul; Ahn, Esther] CUNY Queensborough Community Coll, Dept Chem, New York, NY 11364 USA. [Zhang, Lihua] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Hemraj-Benny, T (reprint author), CUNY Queensborough Community Coll, Dept Chem, 222-05 56th Ave, New York, NY 11364 USA. EM themrajbenny@qcc.cuny.edu; mchauhan@qcc.cuny.edu RI Zhang, Lihua/F-4502-2014 FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX HRTEM analyses were carried out at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 46 TC 2 Z9 2 U1 0 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1876-990X J9 SILICON-NETH JI Silicon PD APR PY 2011 VL 3 IS 2 BP 97 EP 101 DI 10.1007/s12633-011-9086-7 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 023BS UT WOS:000310008500006 ER PT J AU Lei, Y Jelic, J Nitsche, LC Meyer, R Miller, J AF Lei, Yu Jelic, Jelena Nitsche, Ludwig C. Meyer, Randall Miller, Jeffrey TI Effect of Particle Size and Adsorbates on the L-3, L-2 and L-1 X-ray Absorption Near Edge Structure of Supported Pt Nanoparticles SO TOPICS IN CATALYSIS LA English DT Article DE Pt nanoparticles; Bond length contraction; Particle size effect in XANES spectra; Particle size effect in Pt bond length; Pt XANES; EXAFS ID D-ELECTRON-DENSITY; IN-SITU XANES; ADSORPTION SITES; HYDROGEN ADSORPTION; PLATINUM CLUSTERS; METAL-CATALYSTS; GOLD CATALYSTS; CO ADSORPTION; FUEL-CELL; SPECTROSCOPY AB Pt nano-particles from about 1 to 10 nm have been prepared on silica, alkali-silica, alumina, silica-alumina, carbon and SBA-15 supports. EXAFS spectra of the reduced catalysts in He show a contraction of the Pt-Pt bond distance as particle size is decreased below 3 nm. The bond length decreased as much as 0.13 angstrom for 1 nm Pt particles. Adsorption of CO and H-2 lead to a increase in Pt-Pt bond distance to that near Pt foil, e. g., 2.77 angstrom. In addition to changes in the Pt bond distance with size, as the particle size decreases below about 5 nm there is a shift in the XANES to higher energy at the L-3 edge, a decrease in intensity near the edge and an increase in intensity beyond the edge. We suggest these features correspond to effects of coordination (the decrease at the edge) and lattice contraction (the increase beyond the edge). At the L-2 edge, there are only small shifts to higher energy at the edge. However, beyond the edge, there are large increases in intensity with decreasing particle size. At the L-1 edge there are no changes in position or shape of the XANES spectra. Adsorption of CO and H2 also lead to changes in the L-3 and L-2 edges, however, no changes are observed at the L-1 edge. Density Functional Theory and XANES calculations show that the trends in the experimental XANES can be explained in terms of the states available near the edge. Both CO and H-2 adsorption result in a depletion of states at the Fermi level but the creation of anti-bonding states above the Fermi level which give rise to intensity increases beyond the edge. C1 [Lei, Yu; Jelic, Jelena; Nitsche, Ludwig C.; Meyer, Randall] Univ Illinois, Dept Chem Engn, Chicago, IL 60607 USA. [Miller, Jeffrey] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Meyer, R (reprint author), Univ Illinois, Dept Chem Engn, Chicago, IL 60607 USA. EM rjm@uic.edu; millerjt@anl.gov RI ID, MRCAT/G-7586-2011; OI Lei, Yu/0000-0002-4161-5568 FU Argonne National Lab; U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences [DE-AC02-06CH11357]; Department of Energy; MRCAT member institutions; National Science Foundation [0747646] FX RJM would like to acknowledge the generous grants for computational time on Jazz and Fusion at Argonne National Lab. Use of the Advanced Photon Source is supported by the U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. In addition, RJM would like to acknowledge the Department of Energy for use of Advanced Photon Source at Argonne National Lab associated with GU-8689. RJM also acknowledges the National Science Foundation for their partial support of this work through CBET grant #0747646. Finally, RJM, JJ and JTM would like to thank Suljo Linic and Hongliang Xin of the University of Michigan for the thoughtful discussions of these results and without whom this work would not have been possible. NR 70 TC 44 Z9 44 U1 5 U2 46 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1022-5528 EI 1572-9028 J9 TOP CATAL JI Top. Catal. PD APR PY 2011 VL 54 IS 5-7 BP 334 EP 348 DI 10.1007/s11244-011-9662-5 PG 15 WC Chemistry, Applied; Chemistry, Physical SC Chemistry GA 782PG UT WOS:000292021000006 ER PT J AU Peth, MA Ross, NP Schneider, DP AF Peth, Michael A. Ross, Nicholas P. Schneider, Donald P. TI NEAR-INFRARED PHOTOMETRIC PROPERTIES OF 130,000 QUASARS: AN SDSS-UKIDSS-MATCHED CATALOG SO ASTRONOMICAL JOURNAL LA English DT Article DE catalogs; quasars: general ID DIGITAL-SKY-SURVEY; ACTIVE GALACTIC NUCLEI; EARLY DATA RELEASE; HIGH-REDSHIFT QUASARS; WIDE-FIELD CAMERA; 7TH DATA RELEASE; LUMINOSITY FUNCTION; Z-SIMILAR-TO-6 QUASARS; SPECTROSCOPIC SURVEY; CLASSIFIED QUASARS AB We present a catalog of over 130,000 quasar candidates with near-infrared (NIR) photometric properties, with an areal coverage of approximately 1200 deg(2). This is achieved by matching the Sloan Digital Sky Survey (SDSS) in the optical ugriz bands to the UKIRT Infrared Digital Sky Survey (UKIDSS) Large Area Survey (LAS) in the NIR YJHK bands. We match the similar to 1 million SDSS DR6 Photometric Quasar catalog to Data Release 3 of the UKIDSS LAS (ULAS) and produce a catalog with 130,827 objects with detections in one or more NIR bands, of which 74,351 objects have optical and K-band detections and 42,133 objects have the full nine-band photometry. The majority (similar to 85%) of the SDSS objects were not matched simply because these were not covered by the ULAS. The positional standard deviation of the SDSS Quasar to ULAS matches is delta(R.A). = 0.'' 1370 and delta(decl). = 0.'' 1314. We find an absolute systematic astrometric offset between the SDSS Quasar catalog and the UKIDSS LAS, of vertical bar R. A.(offset vertical bar) = 0.'' 025 and vertical bar decl.(offset)vertical bar = 0.'' 040; we suggest the nature of this offset to be due to the matching of catalog, rather than image, level data. Our matched catalog has a surface density of approximate to 53 deg(-2) for K <= 18.27 objects; tests using our matched catalog, along with data from the UKIDSS Deep Extragalactic Survey, imply that our limiting magnitude is i approximate to 20.6. Color-redshift diagrams, for the optical and NIR, show a close agreement between our matched catalog and recent quasar color models at redshift z less than or similar to 2.0, while at higher redshifts, the models generally appear to be bluer than the mean observed quasar colors. The gJK and giK color spaces are used to examine methods of differentiating between stars and (mid-redshift) quasars, the key to currently ongoing quasar surveys. Finally, we report on the NIR photometric properties of high, z > 4.6, and very high, z > 5.7, redshift previously discovered quasars. C1 [Peth, Michael A.; Ross, Nicholas P.; Schneider, Donald P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Ross, Nicholas P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Peth, MA (reprint author), Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA. EM npross@lbl.gov OI Peth, Michael/0000-0002-6562-3183 FU National Science Foundation [AST-0607634]; Alfred P. Sloan Foundation; Participating Institutions; National Science Foundation; U.S. Department of Energy; National Aeronautics and Space Administration; Japanese Monbukagakusho; Max Planck Society; Higher Education Funding Council for England FX This work was supported by National Science Foundation grants AST-0607634 (M. A. P., N.P.R., and D. P. S.). We warmly thank M. A. Read for providing the matched catalogs. R. G. McMahon provided very kind input and information regarding the ULAS, especially for the discussions regarding the behavior of themagnitude errors. P. Hewett, G. T. Richards, and J. P. Stott provided useful discussion and comments. We thank the referee for a timely report that has improved our manuscript, and we thank The Astronomical Journal for an extension to the deadline for the submission of our revisions.; 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/. NR 93 TC 20 Z9 20 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 J9 ASTRON J JI Astron. J. PD APR PY 2011 VL 141 IS 4 AR 105 DI 10.1088/0004-6256/141/4/105 PG 16 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 733IO UT WOS:000288256600001 ER PT J AU Cort, JR Swenson, MW Magnuson, TS AF Cort, John R. Swenson, Michael W. Magnuson, Timothy S. TI H-1, C-13, and N-15 backbone, side-chain, and heme chemical shift assignments for oxidized and reduced forms of the monoheme c-type cytochrome ApcA isolated from the acidophilic metal-reducing bacterium Acidiphilium cryptum SO BIOMOLECULAR NMR ASSIGNMENTS LA English DT Article DE Acidiphilium cryptum; c-type cytochrome; Cytochrome c(2); Paramagnetic; Ferricytochrome; Ferrocytochrome; Heme ID NUCLEAR-MAGNETIC-RESONANCE; REDUCTION; OXIDATION AB We report the H-1, C-13, and N-15 chemical shift assignments of both oxidized and reduced forms of an abundant periplasmic c-type cytochrome, designated ApcA, isolated from the acidophilic gram-negative facultatively anaerobic metal-reducing alphaproteobacterium Acidiphilium cryptum. These resonance assignments prove that ApcA is a monoheme cytochrome c (2) and the product of the Acry_2099 gene. An absence of resonance peaks in the NMR spectra for the 21N-terminal residues suggests that a predicted N-terminal signal sequence is cleaved. We also describe the preparation and purification of the protein in labeled form from laboratory cultures of A. cryptum growing on C-13- and N-15- labeled substrates. C1 [Cort, John R.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Swenson, Michael W.; Magnuson, Timothy S.] Idaho State Univ, Dept Biol Sci, Pocatello, ID 83204 USA. RP Cort, JR (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. EM john.cort@pnl.gov FU Department of Energy [DE-FG02-06ER15824]; National Science Foundation [0434023] FX 600 and 750 MHz NMR spectra were acquired in the Environmental Molecular Sciences Laboratory (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. Research was supported by the Department of Energy (Grant DE-FG02-06ER15824 to TSM) and the National Science Foundation (Grant 0434023 to TSM). NR 10 TC 2 Z9 4 U1 1 U2 2 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1874-2718 J9 BIOMOL NMR ASSIGN JI Biomol. NMR Assign. PD APR PY 2011 VL 5 IS 1 BP 89 EP 92 DI 10.1007/s12104-010-9274-1 PG 4 WC Biophysics; Spectroscopy SC Biophysics; Spectroscopy GA 730ZO UT WOS:000288076300022 PM 21197590 ER PT J AU Wada, M Nishiyama, Y Bellesia, G Forsyth, T Gnanakaran, S Langan, P AF Wada, Masahisa Nishiyama, Yoshiharu Bellesia, Giovanni Forsyth, Trevor Gnanakaran, S. Langan, Paul TI Neutron crystallographic and molecular dynamics studies of the structure of ammonia-cellulose I: rearrangement of hydrogen bonding during the treatment of cellulose with ammonia SO CELLULOSE LA English DT Article DE Cellulose; Neutron diffraction; Molecular dynamics; Hydrogen bonding; Ammonia treatment ID SYNCHROTRON X-RAY; LIQUID-AMMONIA; FIBER DIFFRACTION; NATIVE CELLULOSE; CRYSTAL-STRUCTURE; HIGH-TEMPERATURES; IIII; TRANSFORMATION; SYSTEM; COTTON AB The hydrogen bond arrangement in a complex of cellulose with ammonia has been studied using neutron crystallography in combination with molecular dynamics simulations. The O6 atom of the hydroxymethyl group is donor in a highly occupied hydrogen bond to an ammonia molecule. This rotating ammonia molecule is donor in partially occupied and transient hydrogen bonds to the O2, O3 and O6 atoms of the hydroxyl groups of other chains. The hydrogen atom bound to the O3 atom is disordered but it is almost always involved in some type of hydrogen bonding. It is donated in a hydrogen bond most of the time to the O5 atom on the same chain. However, it also rotates away from this O5 atom to be donated to an ammonia molecule part of the time. On the other hand the hydrogen atom bound to the O2 atom is free from hydrogen bonding most of the time. It is donated in a hydrogen bond to the O6 atom on a neighboring chain only with a relatively small probability. These results provide new insights into how hydrogen bonds are rearranged during the conversion of cellulose I to cellulose IIII by ammonia treatment. C1 [Wada, Masahisa] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biomat, Tokyo 1138657, Japan. [Wada, Masahisa] Kyung Hee Univ, Dept Plant & Environm New Resources, Coll Life Sci, Yongin 446701, Gyeonggi Do, South Korea. [Nishiyama, Yoshiharu] Univ Grenoble 1, CNRS, Ctr Rech Macromol Vegetales, F-38041 Grenoble 9, France. [Bellesia, Giovanni; Gnanakaran, S.] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. [Gnanakaran, S.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Forsyth, Trevor] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. [Forsyth, Trevor] Univ Keele, EPSAM ISTM, Keele ST5 5BG, Staffs, England. [Langan, Paul] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Langan, P (reprint author), Los Alamos Natl Lab, Biosci Div, POB 1663, Los Alamos, NM 87545 USA. EM awadam@mail.ecc.u-tokyo.ac.j; yoshiharu.nishiyama@cermav.cnrs.fr; gbellesia@lanl.gov; tforsyth@ill.eu; gnana@lanl.gov; langan_paul@lanl.gov RI Forsyth, V. Trevor/A-9129-2010; Nishiyama, Yoshiharu/A-3492-2012; Langan, Paul/N-5237-2015; OI Forsyth, V. Trevor/0000-0003-0380-3477; Nishiyama, Yoshiharu/0000-0003-4069-2307; Langan, Paul/0000-0002-0247-3122; Gnanakaran, S/0000-0002-9368-3044 FU French Agence Nationale de la Reserche; Office of Biological and Environmental Research of the U.S. Department of Energy; Los Alamos National Laboratory [20080001DR]; [18780131] FX We thank beam line D19 at the Institute Laue Langevin for use of facilities. MW was supported by a Grant-in-Aid for Scientific Research (18780131). This study was partly funded by the French Agence Nationale de la Reserche. PL was supported in part by the Office of Biological and Environmental Research of the U.S. Department of Energy and a Laboratory Directed Research and Development grant from Los Alamos National Laboratory (20080001DR). GB thanks Don Thompson and CNLS at Los Alamos National Laboratory for (crucial) Information Technology support. NR 47 TC 18 Z9 18 U1 2 U2 31 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0969-0239 J9 CELLULOSE JI Cellulose PD APR PY 2011 VL 18 IS 2 BP 191 EP 206 DI 10.1007/s10570-010-9488-5 PG 16 WC Materials Science, Paper & Wood; Materials Science, Textiles; Polymer Science SC Materials Science; Polymer Science GA 733HE UT WOS:000288253000001 ER PT J AU Sivaramakrishnan, R Michael, JV Wagner, AF Dawes, R Jasper, AW Harding, LB Georgievskii, Y Klippenstein, SJ AF Sivaramakrishnan, R. Michael, J. V. Wagner, A. F. Dawes, R. Jasper, A. W. Harding, L. B. Georgievskii, Y. Klippenstein, S. J. TI Roaming radicals in the thermal decomposition of dimethyl ether: Experiment and theory SO COMBUSTION AND FLAME LA English DT Article DE H plus dimethyl ether; Transition state theory; Ab initio; Shock tube; Abstraction ID MULTIREFERENCE PERTURBATION-THEORY; HIGH-TEMPERATURE PYROLYSIS; RATE CONSTANTS; SHOCK-WAVES; UNIMOLECULAR DECOMPOSITION; CHEMICAL-KINETICS; ATOMIC-HYDROGEN; AB-INITIO; ACETALDEHYDE; PHOTODISSOCIATION AB The thermal dissociation of dimethyl ether has been studied with a combination of reflected shock tube experiments and ab initio dynamics simulations coupled with transition state theory based master equation calculations. The experiments use the extraordinary sensitivity provided by H-atom ARAS detection with an unreversed light source to measure both the total decomposition rate and the branching to radical products versus molecular products, with the molecular products arising predominantly through roaming according to the theoretical analysis. The experimental observations also provide a measure of the rate coefficient for H + CH(3)OCH(3). An evaluation of the available experimental results for H + CH(3)OCH(3) can be expressed by a three parameter Arrhenius expression as, k = 6.54 x 10(-24)T(4.13) exp(-896/T) cm(3) molecule(-1) s(-1)(273 - 1465 K) The potential energy surface is explored with high level ab initio electronic structure theory. The dynamics of roaming versus radical formation is studied with a reduced dimensional trajectory approach. The requisite potential energy surface is obtained from an interpolative moving least squares fit to wide-ranging ab initio data for the long-range interactions between methyl and methoxy. The predicted roaming and radical micro-canonical fluxes are incorporated in a master equation treatment of the temperature and pressure dependence of the dissociation process. The tight (i.e., non-roaming) transition states leading to a variety of additional molecular fragments are also included in the master equation analysis, but are predicted to have a negligible contribution to product formation. The final theoretical results reliably reproduce the measured dissociation rate to radical products reported here and are well reproduced over the 500-2000 K temperature range and the 0.01-300 bar pressure range by the following modified Arrhenius parameters for the Troe falloff format: k(1,infinity)(T) = 2.33 x 10(19)T(-0.661)exp(-42345/T) s(-1) k(1,0)(T) = 2.86 x 10(35)T(-11.4)exp(-46953/T)cm(3) molecule(-1) s(-1) F(cent)(T) = exp(-T/880) The experimentally observed branching ratio of 0.19 +/- 0.07 provides a direct measure of the contribution from the roaming radical mechanism. The theoretical analysis predicts a much smaller roaming contribution of 0.02. (C) 2010 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Sivaramakrishnan, R.; Michael, J. V.; Wagner, A. F.; Harding, L. B.; Georgievskii, Y.; Klippenstein, S. J.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Dawes, R.] Missouri Univ Sci & Technol, Rolla, MO 65409 USA. [Dawes, R.; Jasper, A. W.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. RP Michael, JV (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, D-193,Bldg 200, Argonne, IL 60439 USA. EM jmichael@anl.gov; wagner@anl.gov RI SIVARAMAKRISHNAN, RAGHU/C-3481-2008; Michael, Joe/E-3907-2010; Dawes, Richard/C-6344-2015; Jasper, Ahren/A-5292-2011; OI SIVARAMAKRISHNAN, RAGHU/0000-0002-1867-1254; Klippenstein, Stephen/0000-0001-6297-9187 FU US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DE-AC02-06CH11357]; National Nuclear Security Administration [DE-AC04-94-AL85000] FX This work at Argonne was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, under Contract No. DE-AC02-06CH11357. RD and AWJ are supported by the Division of Chemical Sciences, Geosciences, and Biosciences, the Office of Basic Energy Sciences, the US Department of Energy; Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the National Nuclear Security Administration under contract DE-AC04-94-AL85000. NR 49 TC 45 Z9 45 U1 1 U2 60 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2011 VL 158 IS 4 SI SI BP 618 EP 632 DI 10.1016/j.combustflame.2010.12.017 PG 15 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 733VG UT WOS:000288291000004 ER PT J AU Dooley, S Dryer, FL Yang, B Wang, J Cool, TA Kasper, T Hansen, N AF Dooley, S. Dryer, F. L. Yang, B. Wang, J. Cool, T. A. Kasper, T. Hansen, N. TI An experimental and kinetic modeling study of methyl formate low-pressure flames SO COMBUSTION AND FLAME LA English DT Article DE Methyl ester; Methyl formate; Kinetic model; Low-pressure flame; MBMS ID PHOTOIONIZATION MASS-SPECTROMETRY; DIMETHYL ETHER FLAMES; CHEMISTRY; OXIDATION; ESTERS; LASER AB The oxidation of methyl formate (CH3OCHO), the simplest methyl ester, is studied in a series of burner-stabilized laminar flames at pressures of 22-30 Torr and equivalence ratios (Phi) from 1.0 to 1.8 for flame conditions of 25-35% fuel. Flame structures are determined by quantitative measurements of species mole fractions with flame-sampling molecular-beam synchrotron photoionization mass spectrometry (PIMS). Methyl formate is observed to be converted to methanol, formaldehyde and methane as major intermediate species of mechanistic relevance. Smaller amounts of ethylene and acetylene are also formed from methyl formate oxidation. Reactant, product and major intermediate species profiles are in good agreement with the computations of a recently developed kinetic model for methyl formate oxidation [S. Dooley, M.P. Burke, M. Chaos, Y. Stein, F.L. Dryer, V.P. Zhukov, O. Finch, J.M. Simmie, H.J. Curran, Int. J. Chem. Kinet. 42 (2010) 527-529] which shows that hydrogen abstraction reactions dominate fuel consumption under the tested flame conditions. Radical-radical reactions are shown to be significant in the formation of a number of small concentration intermediates, including the production of ethyl formate (C2H5OCHO), the subsequent decomposition of which is the major source of observed ethylene concentrations. The good agreement of model computations with this set of experimental data provides a further test of the predictive capabilities of the proposed mechanism of methyl formate oxidation. Other salient issues in the development of this model are discussed, including recent controversy regarding the methyl formate decomposition mechanism, and uncertainties in the experimental measurement and modeling of low-pressure flame-sampling experiments. Kinetic model computations show that worst-case disturbances to the measured temperature field, which may be caused by the insertion of the sampling cone into the flame, do not alter mechanistic conclusions provided by the kinetic model. However, such perturbations are shown to be responsible for disparities in species location between measurement and computation. (C) 2010 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Dooley, S.; Dryer, F. L.] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA. [Yang, B.; Wang, J.; Cool, T. A.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA. [Kasper, T.; Hansen, N.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. RP Dooley, S (reprint author), Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA. EM dooleys@princeton.edu RI Yang, Bin/A-7158-2008; Hansen, Nils/G-3572-2012; Kasper, Tina/A-2975-2017; OI Yang, Bin/0000-0001-7333-0017; Kasper, Tina/0000-0003-3993-5316; Dooley, Stephen/0000-0001-9450-8486 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy (USDOE) [DE-FG02-86ER13503, DE-FG02-01ER15180]; Chemical Sciences Division, US Army Research Office; US Department of Energy, Office of Basic Energy Sciences under the Energy Frontier Research Center for Combustion Science [DE-SC0001198]; National Nuclear Security Administration [DE-AC04-94-AL85000]; Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the USDOE [DE-AC02-05CH11231] FX The authors are grateful to Paul Fugazzi for expert technical assistance and for discussion with Dr. Marcos Chaos. This work is supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy (USDOE), in part under grants DE-FG02-86ER13503 (S.D., F.L.D.) and DE-FG02-01ER15180 (T.A.C., BY., J.W.) and by the Chemical Sciences Division, US Army Research Office (T.A.C., B.Y., J.W.); S.D., F.L.D., B.Y., N.H. are also supported by the US Department of Energy, Office of Basic Energy Sciences under the Energy Frontier Research Center for Combustion Science (Grant No. DE-SC0001198); Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the National Nuclear Security Administration under contract DE-AC04-94-AL85000. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division, of the USDOE under Contract No. DE-AC02-05CH11231 at the Lawrence Berkeley National Laboratory. NR 27 TC 36 Z9 36 U1 7 U2 59 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2011 VL 158 IS 4 SI SI BP 732 EP 741 DI 10.1016/j.combustflame.2010.11.003 PG 10 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 733VG UT WOS:000288291000012 ER PT J AU Westbrook, CK Naik, CV Herbinet, O Pitz, WJ Mehl, M Sarathy, SM Curran, HJ AF Westbrook, C. K. Naik, C. V. Herbinet, O. Pitz, W. J. Mehl, M. Sarathy, S. M. Curran, H. J. TI Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels SO COMBUSTION AND FLAME LA English DT Article DE Biofuels; Reaction mechanisms; Chemical kinetics ID LOW-TEMPERATURE OXIDATION; METHYL-ESTERS; DIESEL-ENGINES; MOTORED ENGINE; SELF-IGNITION; DOUBLE-BOND; COMBUSTION; AUTOIGNITION; HYDROCARBONS; BUTANOATE AB A detailed chemical kinetic reaction mechanism is developed for the five major components of soy biodiesel and rapeseed biodiesel fuels. These components, methyl stearate, methyl oleate, methyl linoleate, methyl linolenate, and methyl palmitate, are large methyl ester molecules, some with carbon-carbon double bonds, and kinetic mechanisms for them as a family of fuels have not previously been available. Of particular importance in these mechanisms are models for alkylperoxy radical isomerization reactions in which a C=C double bond is embedded in the transition state ring. The resulting kinetic model is validated through comparisons between predicted results and a relatively small experimental literature. The model is also used in simulations of biodiesel oxidation in jet-stirred reactor and intermediate shock tube ignition and oxidation conditions to demonstrate the capabilities and limitations of these mechanisms. Differences in combustion properties between the two biodiesel fuels, derived from soy and rapeseed oils, are traced to the differences in the relative amounts of the same five methyl ester components. (C) 2010 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Westbrook, C. K.; Pitz, W. J.; Mehl, M.; Sarathy, S. M.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Naik, C. V.] React Design, San Diego, CA 92121 USA. [Herbinet, O.] Nancy Univ, CNRS, ENSIC, Nancy, France. [Curran, H. J.] Natl Univ Ireland, Dept Chem, Galway, Ireland. RP Westbrook, CK (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM westbrook1@llnl.gov RI herbinet, olivier/H-2571-2013; Sarathy, S. Mani/M-5639-2015; Mehl, Marco/A-8506-2009; OI Sarathy, S. Mani/0000-0002-3975-6206; Mehl, Marco/0000-0002-2227-5035; Curran, Henry/0000-0002-5124-8562; herbinet, olivier/0000-0002-2155-098X FU US Department of Energy, Office of Vehicle Technologies; US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors thank Mr. Nathan Barnes for his assistance in carrying out some of the calculations used in this paper. This work was supported in part by the US Department of Energy, Office of Vehicle Technologies, and the authors thank program managers Gurpreet Singh and Kevin Stork for their support. This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 74 TC 93 Z9 96 U1 4 U2 76 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2011 VL 158 IS 4 SI SI BP 742 EP 755 DI 10.1016/j.combustflame.2010.10.020 PG 14 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 733VG UT WOS:000288291000013 ER PT J AU Klippenstein, SJ Harding, LB Glarborg, P Miller, JA AF Klippenstein, Stephen J. Harding, Lawrence B. Glarborg, Peter Miller, James A. TI The role of NNH in NO formation and control SO COMBUSTION AND FLAME LA English DT Article DE Ab initio calculations; Master equation; Chemical kinetics; Nitrogen chemistry; NNH; Thermal DeNO(x) ID POTENTIAL-ENERGY SURFACE; PRODUCT BRANCHING RATIO; TRANSITION-STATE THEORY; MULTIREFERENCE PERTURBATION-THEORY; PHENOMENOLOGICAL RATE COEFFICIENTS; 2-DIMENSIONAL MASTER EQUATION; LASER-INDUCED FLUORESCENCE; TOTAL RATE-CONSTANT; NH2+NO REACTION; NITRIC-OXIDE AB One of the remaining issues in our understanding of nitrogen chemistry in combustion is the chemistry of NNH. This species is known as a key intermediate in Thermal DeNO(x), where NH3 is used as a reducing agent for selective non-catalytic reduction of NO. In addition, NNH has been proposed to facilitate formation of NO from thermal fixation of molecular nitrogen through the so-called NNH mechanism. The importance of NNH for formation and reduction of NO depends on its thermal stability and its major consumption channels. In the present work, we study reactions on the NNH + O, NNH + O-2, and NH2 + O-2 potential energy surfaces using methods previously developed by Miller, Klippenstein, Harding, and their co-workers. Their impact on Thermal DeNO(x) and the NNH mechanism for NO formation is investigated in detail. (C) 2011 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Glarborg, Peter] Tech Univ Denmark, DTU Chem Engn, DK-2800 Lyngby, Denmark. [Klippenstein, Stephen J.; Harding, Lawrence B.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Miller, James A.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. RP Glarborg, P (reprint author), Tech Univ Denmark, DTU Chem Engn, DK-2800 Lyngby, Denmark. EM pgl@kt.dtu.dk OI Klippenstein, Stephen/0000-0001-6297-9187 FU US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DE-AC02-06CH11357]; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94A18500]; Energinet.dk FX The work at Argonne and Sandia was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. The work at Argonne was supported under Contract No. DE-AC02-06CH11357. 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-AC04-94A18500. The work at DTU was funded by Energinet.dk as part of the Eranet Bioenergy program. NR 113 TC 41 Z9 41 U1 6 U2 57 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2011 VL 158 IS 4 SI SI BP 774 EP 789 DI 10.1016/j.combustflame.2010.12.013 PG 16 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 733VG UT WOS:000288291000015 ER PT J AU Sheng, F Wang, K Zhang, RD Liu, HH AF Sheng, Feng Wang, Kang Zhang, Renduo Liu, Huihai TI Modeling preferential water flow and solute transport in unsaturated soil using the active region model SO ENVIRONMENTAL EARTH SCIENCES LA English DT Article DE Active region model; Preferential flow; Dye infiltration experiment; Mobile-immobile region; model; Solute transport ID BRILLIANT BLUE FCF; POROUS-MEDIA; VADOSE ZONE; FIELD SOIL; DYE; TRACER; PENETRATION; ADSORPTION; PATTERNS; BEHAVIOR AB Preferential flow and solute transport are common processes in the unsaturated soil, in which distributions of soil water content and solute concentrations are often characterized as fractal patterns. An active region model (ARM) was recently proposed to describe the preferential flow and transport patterns. In this study, ARM governing equations were derived to model the preferential soil water flow and solute transport processes. To evaluate the ARM equations, dye infiltration experiments were conducted, in which distributions of soil water content and Cl(-) concentration were measured. Predicted results using the ARM and the mobile-immobile region model (MIM) were compared with the measured distributions of soil water content and Cl(-) concentration. Although both the ARM and the MIM are two-region models, they are fundamentally different in terms of treatments of the flow region. The models were evaluated based on the modeling efficiency (ME). The MIM provided relatively poor prediction results of the preferential flow and transport with negative ME values or positive ME values less than 0.4. On the contrary, predicted distributions of soil water content and Cl(-) concentration using the ARM agreed reasonably well with the experimental data, with ME values higher than 0.8. The results indicated that the ARM successfully captured the macroscopic behavior of preferential flow and solute transport in the unsaturated soil. C1 [Sheng, Feng; Zhang, Renduo] Sun Yat Sen Zhongshan Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China. [Sheng, Feng] Changsha Univ Sci & Technol, Sch Water Conservancy, Changsha 410114, Hunan, Peoples R China. [Wang, Kang] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China. [Liu, Huihai] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Zhang, RD (reprint author), Sun Yat Sen Zhongshan Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China. EM shengf.china@gmail.com; wwangkang@163.com; zhangrd@mail.sysu.edu.cn; hhliu@lbl.gov FU National Science Foundation of China [50779080, 50528910, 50579079]; 973 Project, the National Basic Research Program of China [2006CB403404] FX This research was financially supported in part by grants of the National Science Foundation of China (Nos. 50779080, 50528910 and 50579079) and the 973 Project, the National Basic Research Program of China (No. 2006CB403404). NR 39 TC 7 Z9 12 U1 4 U2 26 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1866-6280 J9 ENVIRON EARTH SCI JI Environ. Earth Sci. PD APR PY 2011 VL 62 IS 7 BP 1491 EP 1501 DI 10.1007/s12665-010-0633-0 PG 11 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 732VU UT WOS:000288218600013 ER PT J AU Yue, P Gong, JY Di, LP He, LL Wei, YX AF Yue, Peng Gong, Jianya Di, Liping He, Lianlian Wei, Yaxing TI Integrating semantic web technologies and geospatial catalog services for geospatial information discovery and processing in cyberinfrastructure SO GEOINFORMATICA LA English DT Article DE CSW; ebRIM; Semantic; Cyberinfrastructure; Service chain; Geoprocessing workflow ID GEOGRAPHIC INFORMATION; SCIENCE AB A geospatial catalogue service provides a network-based meta-information repository and interface for advertising and discovering shared geospatial data and services. Descriptive information (i.e., metadata) for geospatial data and services is structured and organized in catalogue services. The approaches currently available for searching and using that information are often inadequate. Semantic Web technologies show promise for better discovery methods by exploiting the underlying semantics. Such development needs special attention from the Cyberinfrastructure perspective, so that the traditional focus on discovery of and access to geospatial data can be expanded to support the increased demand for processing of geospatial information and discovery of knowledge. Semantic descriptions for geospatial data, services, and geoprocessing service chains are structured, organized, and registered through extending elements in the ebXML Registry Information Model (ebRIM) of a geospatial catalogue service, which follows the interface specifications of the Open Geospatial Consortium (OGC) Catalogue Services for the Web (CSW). The process models for geoprocessing service chains, as a type of geospatial knowledge, are captured, registered, and discoverable. Semantics-enhanced discovery for geospatial data, services/service chains, and process models is described. Semantic search middleware that can support virtual data product materialization is developed for the geospatial catalogue service. The creation of such a semantics-enhanced geospatial catalogue service is important in meeting the demands for geospatial information discovery and analysis in Cyberinfrastructure. C1 [Yue, Peng; Gong, Jianya] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Peoples R China. [Di, Liping] George Mason Univ, CSISS, Greenbelt, MD 20770 USA. [He, Lianlian] Hubei Univ Educ, Dept Math, Wuhan 430205, Hubei, Peoples R China. [Wei, Yaxing] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Yue, P (reprint author), Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, 129 Luoyu Rd, Wuhan 430079, Peoples R China. EM geopyue@gmail.com RI Wei, Yaxing/K-1507-2013 OI Wei, Yaxing/0000-0001-6924-0078 FU U.S. NGA [HM1582-04-1-2021]; NSFC [40801153]; 863 Program of China [2007AA120501, 2007AA12Z214]; Wuhan University FX We are grateful to the four anonymous reviewers, and to Dr. Barry Schlesinger for their detailed comments that helped improve the quality of the paper. This work was funded fully or partially by U.S. NGA NURI program (HM1582-04-1-2021), Project 40801153 supported by NSFC, 863 Program of China (2007AA120501, 2007AA12Z214), LIESMARS and SKLSE (Wuhan University) Special Research Funding. NR 63 TC 31 Z9 34 U1 3 U2 34 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1384-6175 EI 1573-7624 J9 GEOINFORMATICA JI Geoinformatica PD APR PY 2011 VL 15 IS 2 BP 273 EP 303 DI 10.1007/s10707-009-0096-1 PG 31 WC Computer Science, Information Systems; Geography, Physical SC Computer Science; Physical Geography GA 732WG UT WOS:000288219800003 ER PT J AU Logue, JM McKone, TE Sherman, MH Singer, BC AF Logue, J. M. McKone, T. E. Sherman, M. H. Singer, B. C. TI Hazard assessment of chemical air contaminants measured in residences SO INDOOR AIR LA English DT Review DE Indoor air quality; Hazard analysis; Residential; Concentrations; Volatile organic compound; Semi-volatile organic compounds; Criteria pollutants; Ultrafine particulates; Exposure; Metals; Chronic; Acute; Air toxics; Hazardous air pollutants; Toxic air contaminants ID VOLATILE ORGANIC-COMPOUNDS; POLYBROMINATED DIPHENYL ETHERS; INDOOR NITROGEN-DIOXIDE; POLYCYCLIC AROMATIC-HYDROCARBONS; BROMINATED FLAME RETARDANTS; PERSONAL EXPOSURE; PARTICULATE MATTER; POLYCHLORINATED-BIPHENYLS; COMPOUND CONCENTRATIONS; OUTDOOR CONCENTRATIONS AB P>Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants in residences in the United States and in countries with similar lifestyles. These data were used to calculate representative mid-range and upper-bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for five activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants appear to exceed chronic health standards in a large fraction of homes. Nine other pollutants are identified as potential chronic health hazards in a substantial minority of homes, and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on the robustness of measured concentration data and the fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3-butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM2.5. Activity-based emissions are shown to pose potential acute health hazards for PM2.5, formaldehyde, CO, chloroform, and NO2. Practical Implications This analysis identifies key chemical contaminants of concern in residential indoor air using a comprehensive and consistent hazard-evaluation protocol. The identification of a succinct group of chemical hazards in indoor air will allow for successful risk ranking and mitigation prioritization for the indoor residential environment. This work also indicates some common household activities that may lead to the acute levels of pollutant exposure and identifies hazardous chemicals for priority removal from consumer products and home furnishings. C1 [Logue, J. M.; McKone, T. E.; Sherman, M. H.; Singer, B. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Logue, JM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, 1 Cyclotron Rd,Mail Stop 90R3083, Berkeley, CA 94720 USA. EM JMLogue@lbl.gov FU US Department of Energy, Office of Energy Efficiency and Renewable Energy [DE-AC02-05CH11231]; US Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control [I-PHI-01070]; California Energy Commission [500-08-06] FX Funding was provided by the US Department of Energy Building Technologies Program, Office of Energy Efficiency and Renewable Energy under DOE Contract No. DE-AC02-05CH11231, by the US Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control through Interagency Agreement I-PHI-01070, and by the California Energy Commission through Contract 500-08-06. NR 105 TC 55 Z9 58 U1 15 U2 119 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0905-6947 EI 1600-0668 J9 INDOOR AIR JI Indoor Air PD APR PY 2011 VL 21 IS 2 BP 92 EP 109 DI 10.1111/j.1600-0668.2010.00683.x PG 18 WC Construction & Building Technology; Engineering, Environmental; Public, Environmental & Occupational Health SC Construction & Building Technology; Engineering; Public, Environmental & Occupational Health GA 733HF UT WOS:000288253100002 PM 21392118 ER PT J AU Singer, SW Reddy, AP Gladden, JM Guo, H Hazen, TC Simmons, BA VanderGheynst, JS AF Singer, S. W. Reddy, A. P. Gladden, J. M. Guo, H. Hazen, T. C. Simmons, B. A. VanderGheynst, J. S. TI Enrichment, isolation and characterization of fungi tolerant to 1-ethyl-3-methylimidazolium acetate SO JOURNAL OF APPLIED MICROBIOLOGY LA English DT Article DE Aspergillus; compost; endoglucanase; ionic liquid; xylanase ID IONIC LIQUID PRETREATMENT; 1-N-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE; ASPERGILLUS-NIGER; BIOMASS; SWITCHGRASS; DISSOLUTION; CELLULASE AB Aims: This work aimed to characterize microbial tolerance to 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]), an ionic liquid that has emerged as a novel biomass pretreatment for lignocellulosic biomass. Methods and Results: Enrichment experiments performed using inocula treated with [C2mim][OAc] under solid and liquid cultivation yielded fungal populations dominated by Aspergilli. Ionic liquid-tolerant Aspergillus isolates from these enrichments were capable of growing in a radial plate growth assay in the presence of 10% [C2mim][OAc]. When a [C2mim][OAc]-tolerant Aspergillus fumigatus strain was grown in the presence of switchgrass, endoglucanases and xylanases were secreted that retained residual enzymatic activity in the presence of 20% [C2mim][OAc]. Conclusions: The results of the study suggest that tolerance to ionic liquids is a general property of the Aspergilli. Significance and Impact of the Study: Tolerance to an industrially important ionic liquid was discovered in a fungal genera that is widely used in biotechnology, including biomass deconstruction. C1 [Singer, S. W.] Joint BioEnergy Inst, Deconstruct Div, Emeryville, CA 94608 USA. [Singer, S. W.; Hazen, T. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Reddy, A. P.; Guo, H.; VanderGheynst, J. S.] Univ Calif, Dept Biol & Agr Engn, Davis, CA USA. [Gladden, J. M.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA. [Simmons, B. A.] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA. RP Singer, SW (reprint author), Joint BioEnergy Inst, Deconstruct Div, 5885 Hollis St, Emeryville, CA 94608 USA. EM SWSinger@lbl.gov RI Hazen, Terry/C-1076-2012; OI Hazen, Terry/0000-0002-2536-9993; Simmons, Blake/0000-0002-1332-1810 FU U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; U.S. Department of Energy [DE-AC02-05CH11231] FX Validation of Aspergillus oryzae strain UCDF1 by beta-tubulin sequencing was performed by Dr. Brian Wicks at the University of Texas Health Science Center at San Antonio Fungus Testing Laboratory. Special thanks to Josh Claypool for his assistance at University of California-Davis. This work was performed as part of the DOE Joint BioEnergy Institute (http://www.jbei.org) supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U.S. Department of Energy. NR 32 TC 18 Z9 18 U1 2 U2 14 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1364-5072 J9 J APPL MICROBIOL JI J. Appl. Microbiol. PD APR PY 2011 VL 110 IS 4 BP 1023 EP 1031 DI 10.1111/j.1365-2672.2011.04959.x PG 9 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 732FE UT WOS:000288169600017 PM 21276149 ER PT J AU Sykes, AG AF Sykes, Andrew G. TI Exact solutions to the four Goldstone modes around a dark soliton of the nonlinear Schrodinger equation SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL LA English DT Article ID DIRECT PERTURBATION-THEORY; DYNAMICS AB This paper is concerned with the linearization around a dark soliton solution of the nonlinear Schrodinger equation. Crucially, we present analytic expressions for the four linearly independent zero eigenvalue solutions (also known as Goldstone modes) to the linearized problem. These solutions are then used to construct a Green matrix which gives the first-order spatial response due to some perturbation. Finally, we apply this Green matrix to find the correction to the dark-soliton wavefunction of a Bose-Einstein condensate in the presence of fluctuations. C1 [Sykes, Andrew G.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Sykes, Andrew G.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Sykes, AG (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM sykes@lanl.gov RI Sykes, Andrew/C-9590-2014 NR 40 TC 1 Z9 1 U1 1 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1751-8113 EI 1751-8121 J9 J PHYS A-MATH THEOR JI J. Phys. A-Math. Theor. PD APR 1 PY 2011 VL 44 IS 13 AR 135206 DI 10.1088/1751-8113/44/13/135206 PG 11 WC Physics, Multidisciplinary; Physics, Mathematical SC Physics GA 731QN UT WOS:000288124500010 ER PT J AU Silver, GL AF Silver, G. L. TI Alternative estimations of the first hydrolysis constant of tetravalent plutonium SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article DE Plutonium; Disproportionation; pH; Hydrolysis ID PENTAVALENT PLUTONIUM; DISPROPORTIONATION; STABILITY; TEMPERATURE; EQUATIONS AB Alternative methods for estimating the numerical value of the equilibrium-constant of the first hydrolysis reaction of tetravalent plutonium are illustrated. They are applied to recent data on Pu oxidation-state distributions in HCl solutions. The new estimates of the hydrolysis constant typically agree with the traditional values. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Silver, GL (reprint author), Los Alamos Natl Lab, POB 1663,MS E502, Los Alamos, NM 87545 USA. EM gsilver@lanl.gov FU National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396] FX Los Alamos National Laboratory is operated by the Los Alamos National Security, LLC for the National Nuclear Security Administration of the U.S. Department of Energy contract DE-AC52-06NA25396. NR 19 TC 3 Z9 3 U1 2 U2 10 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0236-5731 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD APR PY 2011 VL 288 IS 1 BP 89 EP 92 DI 10.1007/s10967-010-0953-2 PG 4 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA 732WM UT WOS:000288220400014 ER PT J AU Silver, GL AF Silver, G. L. TI Plutonium hydrolysis and disproportionation reactions SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article DE Plutonium; Disproportionation; Hydrolysis AB A simplified method for representing the disproportionation reactions of plutonium is illustrated. It applies to any N within the range (3 < N < 6) and at any pH that does not introduce precipitation or polymer-forming reactions. Recalculation of recent estimates of the first hydrolysis constant of the tetravalent plutonium ion improves their precision. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Silver, GL (reprint author), Los Alamos Natl Lab, POB 1663,MS E502, Los Alamos, NM 87545 USA. EM gsilver@lanl.gov NR 12 TC 5 Z9 5 U1 1 U2 16 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0236-5731 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD APR PY 2011 VL 288 IS 1 BP 257 EP 260 DI 10.1007/s10967-010-0906-9 PG 4 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA 732WM UT WOS:000288220400040 ER PT J AU Sridhar, S Rozzelle, P Morreale, B Alman, D AF Sridhar, S. Rozzelle, P. Morreale, B. Alman, D. TI Materials Challenges for Advanced Combustion and Gasification Fossil Energy Systems SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID COAL POWER-PLANTS; BOILER MATERIALS; REFRACTORIES; CORROSION AB This special section of Metallurgical and Materials Transactions is devoted to materials challenges associated with coal based energy conversion systems. The purpose of this introductory article is to provide a brief outline to the challenges associated with advanced combustion and advanced gasification, which has the potential of providing clean, affordable electricity by improving process efficiency and implementing carbon capture and sequestration. Affordable materials that can meet the demanding performance requirements will be a key enabling technology for these systems. C1 [Sridhar, S.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. [Alman, D.] US DOE, Natl Energy Technol Lab, Mat Performance Div, Pittsburgh, PA 15236 USA. [Rozzelle, P.] US DOE, Off Clean Energy Syst, Washington, DC 20585 USA. RP Sridhar, S (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA. EM sridhars@andrew.cmu.edu NR 34 TC 10 Z9 10 U1 2 U2 11 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD APR PY 2011 VL 42A IS 4 BP 871 EP 877 DI 10.1007/s11661-011-0627-x PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 733IP UT WOS:000288256700003 ER PT J AU Bennett, JP Kwong, KS AF Bennett, James P. Kwong, Kyei-Sing TI Failure Mechanisms in High Chrome Oxide Gasifier Refractories SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID PETROLEUM COKE; COAL GASIFICATION; ASH AB Gasification is a high-temperature, high-pressure chemical process used to convert a carbon feedstock into CO and H(2) (syngas) for use in power generation and the production of chemicals. It is also a leading candidate as a source of hydrogen in a hydrogen economy and is one of several technologies expected to see increased use in advanced fossil fuel power systems in the future. Gasification is being evaluated because of its high efficiency, its ability to capture CO(2) for sequestration or reuse in other applications, and its potential for carbon feedstock fuel flexibility. At the heart of the gasification process is a gasifier, a high pressure chemical reaction vessel used to contain the interactions between carbon and water in a shortage of oxygen, producing syngas. The gasifier is lined with high chrome oxide materials to protect the containment vessel. Gasifiers are complex systems, and failure of the refractories used to line them was identified by industry as a limitation to their reliability and availability and to their increased use. NETL researchers have examined spent high-Cr(2)O(3) (over 90 pct Cr(2)O(3)) refractories from numerous gasifiers to determine in-service failure mechanisms. This analysis revealed that premature failure of the high chrome oxide refractories was related to ash in the carbon feedstock, which liquefies during gasification and interacts with the refractories, leading to wear by chemical dissolution or spalling (structural and chemical). A discussion of this postmortem wear of spent refractory materials and of thermodynamic modeling used to explain microstructural changes leading to wear are explained in this article. This information will serve the basis to develop improved performance refractory materials. C1 [Bennett, James P.; Kwong, Kyei-Sing] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA. RP Bennett, JP (reprint author), US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA. EM james.bennett@netl.doe.gov NR 28 TC 17 Z9 18 U1 0 U2 10 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD APR PY 2011 VL 42A IS 4 BP 888 EP 904 DI 10.1007/s11661-011-0635-x PG 17 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 733IP UT WOS:000288256700005 ER PT J AU Yanar, NM Helminiak, M Meier, GH Pettit, FS AF Yanar, N. M. Helminiak, M. Meier, G. H. Pettit, F. S. TI Comparison of the Failures during Cyclic Oxidation of Yttria-Stabilized (7 to 8 Weight Percent) Zirconia Thermal Barrier Coatings Fabricated via Electron Beam Physical Vapor Deposition and Air Plasma Spray SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID NICOCRALY BOND COATS; GAS-TURBINES; MECHANISMS; DELAMINATION; DURABILITY; ALUMINIDE; EVOLUTION; SYSTEMS AB The failures during oxidation of electron beam physical vapor deposition (EBPVD) and air plasma spray (APS) yttria-stabilized zirconia (YSZ) thermal barrier coatings (TBCs) on different bond coats, namely, platinum-modified aluminide and NiCoCrAlY, are described. It is shown that oxidation of the bond coats, along with defects existing near the TBC/bond coat interface, plays a very important role in TBC failures. Procedures to improve TBC performance via modifying the oxidation characteristics of the bond coats and removing the as-processed defects are discussed. The influence of exposure conditions on TBC lives is described and factors such as cycle frequency and thermal gradients are discussed. C1 [Yanar, N. M.; Helminiak, M.; Meier, G. H.; Pettit, F. S.] Univ Pittsburgh, Natl Energy Technol Lab, Pittsburgh, PA 15261 USA. [Yanar, N. M.; Helminiak, M.; Meier, G. H.; Pettit, F. S.] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA. RP Yanar, NM (reprint author), Univ Pittsburgh, Natl Energy Technol Lab, Pittsburgh, PA 15261 USA. EM nmy4@pitt.edu FU ONR (MURI) [N00014-02-1-0801]; National Energy Technology Laboratory under RDS [DE-AC26-04NT41817] FX Financial support of this research by ONR (MURI Contract No. N00014-02-1-0801) and National Energy Technology Laboratory under RDS Contract No. DE-AC26-04NT41817 and TBC specimen preparation by Howmet and GE Aircraft Systems are gratefully acknowledged. NR 22 TC 13 Z9 13 U1 1 U2 14 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD APR PY 2011 VL 42A IS 4 BP 905 EP 921 DI 10.1007/s11661-010-0436-7 PG 17 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 733IP UT WOS:000288256700006 ER PT J AU Yamamoto, Y Brady, MP Santella, ML Bei, H Maziasz, PJ Pint, BA AF Yamamoto, Y. Brady, M. P. Santella, M. L. Bei, H. Maziasz, P. J. Pint, B. A. TI Overview of Strategies for High-Temperature Creep and Oxidation Resistance of Alumina-Forming Austenitic Stainless Steels SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID COAL POWER-PLANTS; SCALE FORMATION; WATER-VAPOR; ALLOYS; BEHAVIOR; PERFORMANCE; ADDITIONS; MECHANISM; COATINGS; PHASE AB A family of creep-resistant, alumina-forming austenitic (AFA) stainless steel alloys is under development for structural use in fossil energy conversion and combustion system applications. The AFA alloys developed to date exhibit comparable creep-rupture lives to state-of-the-art advanced austenitic alloys, and superior oxidation resistance in the similar to 923 K to 1173 K (650 A degrees C to 900 A degrees C) temperature range due to the formation of a protective Al2O3 scale rather than the Cr2O3 scales that form on conventional stainless steel alloys. This article overviews the alloy design approaches used to obtain high-temperature creep strength in AFA alloys via considerations of phase equilibrium from thermodynamic calculations as well as microstructure characterization. Strengthening precipitates under evaluation include MC-type carbides or intermetallic phases such as NiAl-B2, Fe-2(Mo,Nb)-Laves, Ni3Al-L1(2), etc. in the austenitic single-phase matrix. Creep, tensile, and oxidation properties of the AFA alloys are discussed relative to compositional and microstructural factors. C1 [Yamamoto, Y.; Brady, M. P.; Santella, M. L.; Bei, H.; Maziasz, P. J.; Pint, B. A.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Yamamoto, Y (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. EM yamamotoy@ornl.gov RI Pint, Bruce/A-8435-2008; Brady, Michael/A-8122-2008; OI Pint, Bruce/0000-0002-9165-3335; Brady, Michael/0000-0003-1338-4747; Maziasz, Philip/0000-0001-8207-334X; Bei, Hongbin/0000-0003-0283-7990 FU U.S. Department of Energy (US-DOE); US-DOE, Office of Energy Efficiency and Renewable Energy [DE-AC05-00OR22725]; UT-Batelle, LLC; Division of Scientific User Facilities, US-DOE FX The authors thank Drs. S. Dryepondt, R. R. Unocic, and P. F. Tortorelli for helpful comments on this manuscript. This research was sponsored by the U.S. Department of Energy (US-DOE), Fossil Energy Advanced Research Materials program, and US-DOE, Office of Energy Efficiency and Renewable Energy, Industrial Technologies Program, under Contract No. DE-AC05-00OR22725 with UT-Batelle, LLC. Part of the research was conducted at the Shared Research Equipment (SHaRE) user facility, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, US-DOE. NR 41 TC 40 Z9 43 U1 3 U2 40 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 EI 1543-1940 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD APR PY 2011 VL 42A IS 4 BP 922 EP 931 DI 10.1007/s11661-010-0295-2 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 733IP UT WOS:000288256700007 ER PT J AU Preston, BL Westaway, RM Yuen, EJ AF Preston, Benjamin L. Westaway, Richard M. Yuen, Emma J. TI Climate adaptation planning in practice: an evaluation of adaptation plans from three developed nations SO MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE LA English DT Article DE Climate change; Adaptation; Adaptive capacity; Planning; Evaluation AB Formal planning for climate change adaptation is emerging rapidly at a range of geo-political scales. This first generation of adaptation plans provides useful information regarding how institutions are framing the issue of adaptation and the range of processes that are recognized as being part of an adaptation response. To better understand adaptation planning among developed nations, a set of 57 adaptation plans from Australia, the United Kingdom and the United States was evaluated against a suite of 19 planning processes identified from existing guidance instruments for adaptation planning. Total scores among evaluated plans ranged from 16% of the maximum possible score to 61%, with an average of 37%. These results suggest adaptation plans are largely under-developed. Critical weaknesses in adaptation planning are related to limited consideration for non-climatic factors as well as neglect for issues of adaptive capacity including entitlements to various forms of capital needed for effective adaptation. Such gaps in planning suggest there are opportunities for institutions to make better use of existing guidance for adaptation planning and the need to consider the broader governance context in which adaptation will occur. In addition, the adaptation options prescribed by adaptation plans reflect a preferential bias toward low-risk capacity-building (72% of identified options) over the delivery of specific actions to reduce vulnerability. To the extent these findings are representative of the state of developed nation adaptation planning, there appear to be significant deficiencies in climate change preparedness, even among those nations often assumed to have the greatest adaptive capacity. C1 [Preston, Benjamin L.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Westaway, Richard M.] IMS Consulting, Bristol, Avon, England. [Yuen, Emma J.] CSIRO Climate Adaptat Flagship, Aspendale, Vic, Australia. RP Preston, BL (reprint author), Oak Ridge Natl Lab, Div Environm Sci, 1 Bethel Valley Rd,POB 2008,MS 6301, Oak Ridge, TN 37831 USA. EM prestonbl@ornl.gov RI Yuen, Emma/G-5110-2012; Preston, Benjamin/B-9001-2012 OI Preston, Benjamin/0000-0002-7966-2386 FU Julius Career Award; CSIRO FX This work was supported through a Julius Career Award granted to the lead author by the CSIRO as well as support from the CSIRO Climate Adaptation Flagship. The authors also acknowledge the assistance of William Perkins of the U.S Environmental Protection Agency and Dr. Suraje Dessai of the University of Exeter. NR 79 TC 95 Z9 98 U1 1 U2 43 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1381-2386 J9 MITIG ADAPT STRAT GL JI Mitig. Adapt. Strateg. Glob. Chang. PD APR PY 2011 VL 16 IS 4 BP 407 EP 438 DI 10.1007/s11027-010-9270-x PG 32 WC Environmental Sciences SC Environmental Sciences & Ecology GA 733IL UT WOS:000288256300002 ER PT J AU Sevanto, S Holtta, T Holbrook, NM AF Sevanto, Sanna Holtta, Teemu Holbrook, N. Michele TI Effects of the hydraulic coupling between xylem and phloem on diurnal phloem diameter variation SO PLANT CELL AND ENVIRONMENT LA English DT Article DE hydraulic conductance; sap flow; stem diameter variation; xylem diameter variation ID DISTANCE WATER TRANSPORT; STEM DIAMETER; SCOTS PINE; SUGAR-TRANSPORT; NORWAY SPRUCE; TIME LAGS; TREE; FLOW; PLANTS; MODEL AB Measurements of diurnal diameter variations of the xylem and phloem are a promising tool for studying plant hydraulics and xylem-phloem interactions in field conditions. However, both the theoretical framework and the experimental verification needed to interpret phloem diameter data are incomplete. In this study, we analytically evaluate the effects of changing the radial conductance between the xylem and the phloem on phloem diameter variations and test the theory using simple manipulation experiments. Our results show that phloem diameter variations are mainly caused by changes in the radial flow rate of water between the xylem and the phloem. Reducing the hydraulic conductance between these tissues decreases the amplitude of phloem diameter variation and increases the time lag between xylem and phloem diameter variation in a predictable manner. Variation in the amplitude and timing of diameter variations that cannot be explained by changes in the hydraulic conductance, could be related to changes in the osmotic concentration in the phloem. C1 [Sevanto, Sanna; Holbrook, N. Michele] Harvard Univ, Dept Organism & Evolutionary Biol, Biol Labs 3119, Cambridge, MA 02138 USA. [Sevanto, Sanna] Univ Helsinki, Dept Phys, Helsinki 00014, Finland. RP Sevanto, S (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, POB 1663,MS J495, Los Alamos, NM 87454 USA. EM sanna@lanl.gov FU Academy of Finland [208492, 1132561] FX This work was supported by Academy of Finland projects #208492 and #1132561. The support of Harvard Forest is gratefully acknowledged. The authors also want to thank Nate McDowell and Will Pockman for insightful comments on the manuscript. NR 46 TC 45 Z9 46 U1 6 U2 59 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0140-7791 J9 PLANT CELL ENVIRON JI Plant Cell Environ. PD APR PY 2011 VL 34 IS 4 BP 690 EP 703 DI 10.1111/j.1365-3040.2011.02275.x PG 14 WC Plant Sciences SC Plant Sciences GA 732VV UT WOS:000288218700013 PM 21241327 ER PT J AU Dong, YL Perez, D Voter, AF Martini, A AF Dong, Yalin Perez, Danny Voter, Arthur F. Martini, Ashlie TI The Roles of Statics and Dynamics in Determining Transitions Between Atomic Friction Regimes SO TRIBOLOGY LETTERS LA English DT Article DE Nanotribology; Stick-slip; Dynamic modeling; Friction mechanisms ID FORCE MICROSCOPE; SCALE FRICTION; SURFACE; TIP AB We introduce a model AFM tip/substrate system that includes full atomistic detail as well as system compliance to study the transitions between three regimes of atomic friction: smooth sliding, stick-single slip, and stick-multiple slip. We characterize these atomic friction regimes in terms of static and dynamic effects, and investigate how the slip modes affect the mean friction. Molecular statics calculations show that reduced-order model predictions of possible transitions between slip regimes are generally adequate for a fully atomistic system, even for complex reaction coordinates. However, molecular dynamics simulations demonstrate that, while static features of the system govern possible slip regimes, dynamic effects ultimately determine actual transitions between slip regimes. C1 [Dong, Yalin; Martini, Ashlie] Purdue Univ, W Lafayette, IN 47907 USA. [Perez, Danny; Voter, Arthur F.] Los Alamos Natl Lab, Theoret Div T 1, Los Alamos, NM USA. RP Martini, A (reprint author), Purdue Univ, W Lafayette, IN 47907 USA. EM a-martini@purdue.edu RI Dong, Yalin/C-9525-2011; Martini, Ashlie/F-9320-2012 OI Martini, Ashlie/0000-0003-2017-6081 FU National Science Foundation [CMMI- 0758604]; United States Department of Energy (U.S. DOE) Office of Basic Energy Sciences, Materials Sciences and Engineering Division; LANL Laboratory Directed Research and Development Program; U.S. DOE [DE-AC52-06NA25396] FX We are grateful for the contributions of Jianguo Wu, Dr. Qunyang Li and Dr. Robert Carpick and to the National Science Foundation for its support via award CMMI- 0758604. Work at Los Alamos National Laboratory (LANL) was supported by the United States Department of Energy (U.S. DOE) Office of Basic Energy Sciences, Materials Sciences and Engineering Division, and by the LANL Laboratory Directed Research and Development Program. LANL is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. DOE under Contract No. DE-AC52-06NA25396. NR 36 TC 12 Z9 12 U1 2 U2 14 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1023-8883 EI 1573-2711 J9 TRIBOL LETT JI Tribol. Lett. PD APR PY 2011 VL 42 IS 1 BP 99 EP 107 DI 10.1007/s11249-011-9750-5 PG 9 WC Engineering, Chemical; Engineering, Mechanical SC Engineering GA 733HD UT WOS:000288252900011 ER PT J AU Brandon, EJ Vozoff, M Kolawa, EA Studor, GF Lyons, F Keller, MW Beiermann, B White, SR Sottos, NR Curry, MA Banks, DL Brocato, R Zhou, LS Jung, SY Jackson, TN Champaigne, K AF Brandon, Erik J. Vozoff, Max Kolawa, Elizabeth A. Studor, George F. Lyons, Frankel Keller, Michael W. Beiermann, Brett White, Scott R. Sottos, Nancy R. Curry, Mark A. Banks, David L. Brocato, Robert Zhou, Lisong Jung, Soyoun Jackson, Thomas N. Champaigne, Kevin TI Structural health management technologies for inflatable/deployable structures: Integrating sensing and self-healing SO ACTA ASTRONAUTICA LA English DT Article DE Inflatable structures; Deployable structures; Distributed sensing; Structural health monitoring; Self-repairing materials ID INFLATABLE STRUCTURES; TEAR PROPERTIES; SAW DEVICES; COMPOSITE; SENSORS; LUNAR; ELECTRONICS; CATALYST; RUPTURE; RUBBER AB Inflatable/deployable structures are under consideration as habitats for future Lunar surface science operations. The use of non-traditional structural materials combined with the need to maintain a safe working environment for extended periods in a harsh environment has led to the consideration of an integrated structural health management system for future habitats, to ensure their integrity. This article describes recent efforts to develop prototype sensing technologies and new self-healing materials that address the unique requirements of habitats comprised mainly of soft goods. A new approach to detecting impact damage is discussed, using addressable flexible capacitive sensing elements and thin film electronics in a matrixed array. Also, the use of passive wireless sensor tags for distributed sensing is discussed, wherein the need for on-board power through batteries or hardwired interconnects is eliminated. Finally, the development of a novel, microencapuslated self-healing elastomer with applications for inflatable/deployable habitats is reviewed. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Brandon, Erik J.; Vozoff, Max; Kolawa, Elizabeth A.] CALTECH, Jet Prop Lab, NASA, Pasadena, CA 91109 USA. [Studor, George F.; Lyons, Frankel] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA. [Keller, Michael W.; Beiermann, Brett; White, Scott R.; Sottos, Nancy R.] Univ Illinois, Urbana, IL 61801 USA. [Curry, Mark A.; Banks, David L.] Boeing Phantom Works, Seattle, WA 98124 USA. [Brocato, Robert] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Zhou, Lisong; Jung, Soyoun; Jackson, Thomas N.] Penn State Univ, University Pk, PA 16802 USA. [Champaigne, Kevin] Invocon Inc, Conroe, TX 77385 USA. RP Brandon, EJ (reprint author), CALTECH, Jet Prop Lab, NASA, 4800 Oak Grove Dr, Pasadena, CA 91109 USA. EM erik.j.brandon@jpl.nasa.gov; Max.Vozoff@spacex.com; Elizabeth.A.Kolawa@jpl.nasa.gov; george.f.studor@nasa.gov; frankel.lyons-1@nasa.gov; mwkeller@utulsa.edu; bbeierm2@illinois.edu; swhite@uiuc.edu; n-sottos@uiuc.edu; mark.a.curry@boeing.com; david.l.banks@boeing.com; rwbroca@sandia.gov; Lisong_zhou@amat.com; sxj001@uark.edu; tnj1@psu.edu; champaigne@invocon.com RI Jackson, Thomas/A-4224-2012; Keller, Michael/B-6853-2008 OI Keller, Michael/0000-0002-6069-0280 FU NASA Exploration and Science Mission Directorate FX The authors thank Chris Moore of NASA Headquarters and Judith Watson of NASA Langley Research Center for their guidance and support during this project, Benny Toomarian, Mohammad Mojarradi and Anil Thakoor of JPL for helpful discussions and John Frassanito and Associates for the use of the habitat images. This work was performed by the Jet Propulsion Laboratory, California Institute of Technology through the support of the NASA Exploration and Science Mission Directorate. NR 57 TC 14 Z9 14 U1 4 U2 35 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0094-5765 J9 ACTA ASTRONAUT JI Acta Astronaut. PD APR-MAY PY 2011 VL 68 IS 7-8 BP 883 EP 903 DI 10.1016/j.actaastro.2010.08.016 PG 21 WC Engineering, Aerospace SC Engineering GA 727SL UT WOS:000287821600026 ER PT J AU Bledsoe, KC Favorite, JA Aldemir, T AF Bledsoe, Keith C. Favorite, Jeffrey A. Aldemir, Tunc TI A comparison of the Covariance Matrix Adaptation Evolution Strategy and the Levenberg-Marquardt method for solving multidimensional inverse transport problems SO ANNALS OF NUCLEAR ENERGY LA English DT Article DE Covariance Matrix Adaptation Evolution Strategy; Levenberg-Marquardt method; Inverse transport; Passive gamma rays AB The Covariance Matrix Adaptation Evolution Strategy (CMA-ES), a powerful optimization algorithm that mimics the process of evolution in nature, is applied to the inverse transport problems of interface location identification, source composition identification, and material mass density identification (both separately and combined) in cylindrical radioactive source/shield systems. The energies of discrete gamma-ray lines emitted by the source are assumed to be known, while the uncollided line fluxes are assumed to be measured at points external to the system. CMA-ES is compared to the Levenberg-Marquardt method, a standard gradient-based optimization algorithm, on numerical test cases using both simulated data that is perfectly consistent with the optimization process and with realistic data simulated by Monte Carlo. Numerical results indicate that the Levenberg-Marquardt method is more adept at problems with few unknowns (i.e <= 3), but as the number of unknowns increases, CMA-ES becomes the superior strategy. Results also indicate that a parallel version of CMA-ES would be more robust than, and have competitive run times with, the Levenberg-Marquardt method for many inverse transport problems. Published by Elsevier Ltd. C1 [Bledsoe, Keith C.; Favorite, Jeffrey A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Aldemir, Tunc] Ohio State Univ, Nucl Engn Program, Columbus, OH 43210 USA. RP Bledsoe, KC (reprint author), Oak Ridge Natl Lab, Radiat Transport Grp, MS 6170, Oak Ridge, TN 37931 USA. EM bledsoekc@ornl.gov OI Bledsoe, Keith/0000-0002-6627-5344 NR 13 TC 7 Z9 7 U1 1 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0306-4549 J9 ANN NUCL ENERGY JI Ann. Nucl. Energy PD APR PY 2011 VL 38 IS 4 BP 897 EP 904 DI 10.1016/j.anucene.2010.09.014 PG 8 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 720QF UT WOS:000287294500019 ER PT J AU Le Guillou-Buffello, D Gindre, M Johnson, P Laugier, P Migonney, V AF Le Guillou-Buffello, Delphine Gindre, Marcel Johnson, Paul Laugier, Pascal Migonney, Veronique TI An Alternative Quantitative Acoustical and Electrical Method for Detection of Cell Adhesion Process in Real-Time SO BIOTECHNOLOGY AND BIOENGINEERING LA English DT Article DE quartz crystal resonator; biosensors; thickness shear mode; impedance analysis; cell adhesion ID QUARTZ-CRYSTAL MICROBALANCE; EXTRACELLULAR-MATRIX; MAMMALIAN-CELLS; ADHERENT CELLS; WAVE SENSORS; ATTACHMENT; DYNAMICS; MODE; RESONATORS; PROLIFERATION AB Sauerbrey [(1956), Z Phys 55:206-222] showed that the shift in resonance frequency of thickness shear mode (TSM) of a quartz crystal sensor is proportional to the mass, which is deposited on it. However, new powerful electrical circuits were developed that are capable of operating TSM quartz crystal sensors in fluids which enabled this method to be introduced into electrochemical and biological applications. These applications include the detection of virus capsids, bacteria, mammalian cells, the interaction of DNA and RNA with complementary strands, specific recognition of protein ligands by immobilized receptors, and last but not least the study of complete immunosensors. Piezoelectric quartz transducers allow a label-free identification of molecules; they are more than mass sensors since the biosensor response is also influenced by the surface charge of adsorbed proteins, interfacial phenomena, surface roughness and viscoelastic properties of the adhered biomaterial. These new characteristics have recently been used to investigate cell, liposome, and protein adhesion onto surfaces, thus permitting the rapid determination of morphological cell changes as a response to pharmacological substances, and changes in the water content of biopolymers avoiding of time-consuming methods. We validated an alternative quantitative acoustical engineering for cell adhesion process monitored by the TSM. Shear acoustical results (motional resistance) are further correlated to cell counting procedures and are sensitive of adhesion processes in real-time. Biotechnol. Bioeng. 2011;108: 947-962. (C) 2010 Wiley Periodicals, Inc. C1 [Le Guillou-Buffello, Delphine; Gindre, Marcel; Laugier, Pascal] Univ Paris 06, UPMC, UMR 7623, LIP, F-75005 Paris, France. [Le Guillou-Buffello, Delphine; Gindre, Marcel; Laugier, Pascal] CNRS, UMR 7623, Lab Imagerie Parametr, F-75006 Paris, France. [Johnson, Paul] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM USA. [Migonney, Veronique] Univ Paris 13, Lab Biomat & Polymeres Specialite, Inst Galilee, LBPS CSPBAT CNRS FRE 3043, F-93430 Villetaneuse, France. RP Le Guillou-Buffello, D (reprint author), Univ Paris 06, UPMC, UMR 7623, LIP, F-75005 Paris, France. EM delphine.le_guillou@upmc.fr OI MIGONNEY, VERONIQUE/0000-0002-1055-3720; Johnson, Paul/0000-0002-0927-4003 FU Ministere de l'Education Nationale de la Jeunesse de la Recherche et de la Technologie (MENJRT) FX This study was supported by the Ministere de l'Education Nationale de la Jeunesse de la Recherche et de la Technologie (MENJRT). NR 47 TC 8 Z9 8 U1 1 U2 17 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0006-3592 J9 BIOTECHNOL BIOENG JI Biotechnol. Bioeng. PD APR PY 2011 VL 108 IS 4 BP 947 EP 962 DI 10.1002/bit.23005 PG 16 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA 730LL UT WOS:000288034700022 PM 21404267 ER PT J AU Mafra, DL Moujaes, EA Doorn, SK Htoon, H Nunes, RW Pimenta, MA AF Mafra, D. L. Moujaes, E. A. Doorn, S. K. Htoon, H. Nunes, R. W. Pimenta, M. A. TI A study of inner process double-resonance Raman scattering in bilayer graphene SO CARBON LA English DT Article ID BAND-STRUCTURE; GRAPHITE; SPECTROSCOPY; STRAIN AB The dispersion of phonons and the electronic structure of graphene systems can be obtained experimentally from the double-resonance (DR) Raman features by varying the excitation laser energy. In a previous resonance Raman investigation of graphene, the electronic structure was analyzed in the framework of the Slonczewski-Weiss-McClure (SWM) model, considering the outer DR process. We analyze the data considering the inner DR process, and obtain SWM parameters that are in better agreement with those obtained from other experimental techniques. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Mafra, D. L.; Moujaes, E. A.; Nunes, R. W.; Pimenta, M. A.] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil. [Doorn, S. K.; Htoon, H.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. RP Moujaes, EA (reprint author), Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil. EM emoujaes@fisica.ufmg.br RI Mafra, Daniela/F-7442-2012; Nunes, Ricardo Wagner/M-9974-2014; Pimenta, Marcos/F-2122-2010; OI Nunes, Ricardo Wagner/0000-0003-2810-8649; , /0000-0003-2015-611X; Htoon, Han/0000-0003-3696-2896 FU Rede Nacional de Pesquisa em Nanotubos de Carbono - MCT; Brazilian Agency CNPq; Brazilian Agency FAPEMIG FX This work was supported by Rede Nacional de Pesquisa em Nanotubos de Carbono - MCT, and the Brazilian Agencies CNPq and FAPEMIG. Resonance Raman studies in the near infrared range were conducted at the Center for Integrated Nanotechnologies, jointly operated by Los Alamos and Sandia National Laboratories. NR 32 TC 22 Z9 22 U1 1 U2 22 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 APR PY 2011 VL 49 IS 5 BP 1511 EP 1515 DI 10.1016/j.carbon.2010.11.053 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 729MA UT WOS:000287952700001 ER PT J AU Huang, XP Wang, JM Eres, G Wang, XW AF Huang, Xiaopeng Wang, Jianmei Eres, Gyula Wang, Xinwei TI Thermophysical properties of multi-wall carbon nanotube bundles at elevated temperatures up to 830 K SO CARBON LA English DT Article ID THERMAL TRANSPORT-PROPERTIES; CONDUCTIVITY; HEAT; DIFFUSIVITY; CONDUCTANCE; SHEETS; ARRAYS; FILMS AB Thermal transport measurements in multi-wall carbon nanotube (MWCNT) bundles at elevated temperatures up to 830 K are reported using a novel generalized electrothermal technique. Compared with individual CNTs, the thermal conductivity (k) of MWCNT bundles is two to three orders of magnitude lower, suggesting the thermal transport in MWCNT bundles is dominated by the tube-to-tube thermal contact resistance. The effective density for the two MWCNT bundles, which is difficult to measure using other techniques, is determined at 116 kg/m(3) and 234 kg/m(3). The thermal diffusivity slightly decreases with temperature while k exhibits a small increase with temperature up to 500 K and then decreases. For the first time, the behavior of specific heat for MWCNTs above room temperature is determined. The specific heat is close to graphite at 300-400 K but is lower than that for graphite above 400 K, indicating that the behavior of phonons in MWCNT bundles is dominated by boundary scattering rather than by the three-phonon Umklapp process. The analysis of the radiation heat loss suggests that it needs to be considered when measuring the thermophysical properties of micro/nano wires of high aspect ratios at elevated temperatures, especially for individual MWCNTs due to their extremely small diameters. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Huang, Xiaopeng; Wang, Jianmei; Wang, Xinwei] Iowa State Univ, Dept Mech Engn, Ames, IA 50011 USA. [Wang, Jianmei] Wuhan Univ, Dept Energy & Power Engn, Wuhan, Peoples R China. [Eres, Gyula] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Wang, XW (reprint author), Iowa State Univ, Dept Mech Engn, 2010 Black Engn Bldg, Ames, IA 50011 USA. EM xwang3@iastate.edu RI Huang, Xiaopeng/F-4697-2010; Eres, Gyula/C-4656-2017 OI Eres, Gyula/0000-0003-2690-5214 FU National Science Foundation [CBET-0931290, CMMI-0926704]; Iowa State University; Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy FX The authors wish to thank Yanan Yue for the help on the Raman spectra experiment. We also gratefully acknowledge the support of the National Science Foundation (CBET-0931290 and CMMI-0926704). Partial support from the start-up fund of Iowa State University is gratefully acknowledged. Part of this research (MWCNT synthesis by GE) was sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy. NR 38 TC 21 Z9 21 U1 2 U2 31 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 EI 1873-3891 J9 CARBON JI Carbon PD APR PY 2011 VL 49 IS 5 BP 1680 EP 1691 DI 10.1016/j.carbon.2010.12.053 PG 12 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 729MA UT WOS:000287952700020 ER PT J AU Valenzuela, J Wang, JH AF Valenzuela, Jorge Wang, Jianhui TI A probabilistic model for assessing the long-term economics of wind energy SO ELECTRIC POWER SYSTEMS RESEARCH LA English DT Article DE Wind energy; Market clearing price; Wind farm revenues ID PRODUCTION COSTS; POWER; SYSTEM; COMPUTATION; ADEQUACY AB Understanding the long-term economic impact of wind energy on electricity markets is becoming more important due to the increasing penetration of wind power in the generation mix of power systems. In this paper, we evaluate the economics of wind energy by developing a probabilistic model to compute the long-term probability distribution of market clearing prices and wind farm revenues. The power system is assumed to consist of conventional generating units and wind farms. Availabilities of the generating units and the uncertainty in the wind power output are implicitly accounted for. The effect of increasing wind power penetration on the probability distribution functions of the market price and wind farm revenues is evaluated by changing the rated capacity of the wind farm. The model is illustrated by using a power system with a 32-unit and wind farms. The superiority of the proposed probabilistic model over a deterministic one is confirmed. (C) 2010 Elsevier B.V. All rights reserved. C1 [Valenzuela, Jorge] Auburn Univ, Dept Ind & Syst Engn, Auburn, AL 36849 USA. [Wang, Jianhui] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA. RP Valenzuela, J (reprint author), Auburn Univ, Dept Ind & Syst Engn, 3304 Shelby Ctr, Auburn, AL 36849 USA. EM valenjo@auburn.edu; jianhui.wang@anl.gov NR 19 TC 15 Z9 16 U1 0 U2 3 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0378-7796 J9 ELECTR POW SYST RES JI Electr. Power Syst. Res. PD APR PY 2011 VL 81 IS 4 BP 853 EP 861 DI 10.1016/j.epsr.2010.11.015 PG 9 WC Engineering, Electrical & Electronic SC Engineering GA 728UR UT WOS:000287900500005 ER PT J AU Campbell, MA Chain, PSG Dang, HY El Sheikh, AF Norton, JM Ward, NL Ward, BB Klotz, MG AF Campbell, Mark A. Chain, Patrick S. G. Dang, Hongyue El Sheikh, Amal F. Norton, Jeanette M. Ward, Naomi L. Ward, Bess B. Klotz, Martin G. TI Nitrosococcus watsonii sp. nov., a new species of marine obligate ammonia-oxidizing bacteria that is not omnipresent in the world's oceans: calls to validate the names 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis' SO FEMS MICROBIOLOGY ECOLOGY LA English DT Article DE ammonia oxidation; Nitrosococcus; Nitrosococcus watsonii C-113; 'Nitrosococcus halophilus' Nc4; Nitrosomonas mobilis Nc2 ID 16S RIBOSOMAL-RNA; COMPLETE GENOME SEQUENCE; NITROGEN-CYCLE; BLACK-SEA; PHYLOGENY; DIVERSITY; EVOLUTION; GENES; DNA; NITRIFICATION AB Local associations between anammox bacteria and obligate aerobic bacteria in the genus Nitrosococcus appear to be significant for ammonia oxidation in oxygen minimum zones. The literature on the genus Nitrosococcus in the Chromatiaceae family of purple sulfur bacteria (Gammaproteobacteria, Chromatiales) contains reports on four described species, Nitrosococcus nitrosus, Nitrosococcus oceani, 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis', of which only N. nitrosus and N. oceani are validly published names and only N. oceani is omnipresent in the world's oceans. The species 'N. halophilus' with Nc4T as the type strain was proposed in 1990, but the species is not validly published. Phylogenetic analyses of signature genes, growth-physiological studies and an average nucleotide identity analysis between N. oceani ATCC19707T (C-107, Nc9), 'N. halophilus' strain Nc4T and Nitrosococcus sp. strain C-113 revealed that a proposal for a new species is warranted. Therefore, the provisional taxonomic assignment Nitrosococcus watsonii is proposed for Nitrosococcus sp. strain C-113T. Sequence analysis of Nitrosococcus haoAB signature genes detected in cultures enriched from Jiaozhou Bay sediments (China) identified only N. oceani-type sequences, suggesting that different patterns of distribution in the environment correlate with speciation in the genus Nitrosococcus. C1 [Campbell, Mark A.; El Sheikh, Amal F.; Klotz, Martin G.] Univ Louisville, Dept Biol, Evolutionary & Genom Microbiol Lab, Louisville, KY 40292 USA. [Chain, Patrick S. G.] Los Alamos Natl Lab, Biosci Div, Genome Sci Grp, Los Alamos, NM USA. [Chain, Patrick S. G.] Joint Genome Inst, Metagen Program, Walnut Creek, CA USA. [Chain, Patrick S. G.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA. [Dang, Hongyue; Klotz, Martin G.] China Univ Petr E China, Ctr Bioengn & Biotechnol, Qingdao, Peoples R China. [Dang, Hongyue; Klotz, Martin G.] China Univ Petr E China, State Key Lab Heavy Oil Proc, Qingdao, Peoples R China. [Norton, Jeanette M.] Utah State Univ, Dept Plants Soils & Climate, Logan, UT 84322 USA. [Ward, Naomi L.] Univ Wyoming, Dept Mol Biol, Laramie, WY 82071 USA. [Ward, Bess B.] Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA. [Chain, Patrick S. G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Ward, Naomi L.] Inst Genom Res, Rockville, MD 20850 USA. RP Klotz, MG (reprint author), Univ Louisville, Dept Biol, Evolutionary & Genom Microbiol Lab, 139 Life Sci Bldg, Louisville, KY 40292 USA. EM martin.klotz@louisville.edu RI chain, patrick/B-9777-2013; Norton, Jeanette/G-2633-2011; Klotz, Martin/D-2091-2009; OI Norton, Jeanette/0000-0002-6596-8691; Klotz, Martin/0000-0002-1783-375X; Chain, Patrick/0000-0003-3949-3634 FU UofL-EVPR office; U.S. National Science Foundation [EF-0412129, EPS-0447681]; China National Science Foundation [41076091]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX We would like to thank Dr Jean P. Euzeby (Ecole Nationale Veterinaire, Toulouse, France), Dr George M. Garrity (Michigan State University) and anonymous reviewers of a previous version of this manuscript for invaluable taxonomic advice. Pertinent taxonomic information was accessed through the 'NAMES FOR LIFE' online tool (http://namesforlife.com). Technical assistance by undergraduate student David Griffith (UofL) is acknowledged. This project was supported in part by incentive funds provided by the UofL-EVPR office (M.A.C. and M.G.K.), U.S. National Science Foundation grants EF-0412129 (A.F.E.S. and M.G.K.) and EPS-0447681 (N.L.W.), and the China National Science Foundation grant 41076091 (H.D. and M.G.K.). The genome sequencing work conducted by the U.S. Department of Energy Joint Genome Institute is supported by the Office of Science of the U.S. Department of Energy under Contract Number DE-AC02-05CH11231. NR 57 TC 20 Z9 20 U1 2 U2 29 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0168-6496 J9 FEMS MICROBIOL ECOL JI FEMS Microbiol. Ecol. PD APR PY 2011 VL 76 IS 1 BP 39 EP 48 DI 10.1111/j.1574-6941.2010.01027.x PG 10 WC Microbiology SC Microbiology GA 730ZF UT WOS:000288075400004 PM 21204874 ER PT J AU Forssen, C Navratil, P Quaglioni, S AF Forssen, Christian Navratil, Petr Quaglioni, Sofia TI The ab initio No-Core Shell Model and Light Nuclei SO FEW-BODY SYSTEMS LA English DT Article ID ENERGY-LEVELS; C-12 AB The ab initio no-core shell model (NCSM) is a well-established theoretical framework aimed at an exact description of nuclear structure starting from high-precision interactions between the nucleons. In the NCSM we consider a system of A point-like, non-relativistic nucleons that interact by realistic inter-nucleon interactions. We consider two-nucleon interactions that reproduce nucleon-nucleon phase shifts with high precision, typically up to 350 MeV lab energy. We can also include three-nucleon interactions with terms, e.g., related to two-pion exchanges with an intermediate delta excitation. Both semi-phenomenological potentials, based on meson-exchange models, as well as modern chiral interactions can be considered. The performance of the NCSM within nuclear physics will be exemplified by showing results from studies of light nuclei. Major challenges in the future development of the method will be outlined. C1 [Forssen, Christian] Chalmers, Dept Fundamental Phys, S-41296 Gothenburg, Sweden. [Navratil, Petr; Quaglioni, Sofia] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Forssen, C (reprint author), Chalmers, Dept Fundamental Phys, S-41296 Gothenburg, Sweden. EM christian.forssen@chalmers.se RI Forssen, Christian/C-6093-2008 OI Forssen, Christian/0000-0003-3458-0480 FU Swedish Research Council; European Research Council; European Community - Research Infrastructure Action; LLNL [DE-AC52-07NA27344]; UNEDF SciDAC; DOE [DE-FC02-07ER41457] FX Discussions with H. Fynbo and J. Vary and the ECT* workshop participants are gratefully acknowledged. Financial support was received from the Swedish Research Council and the European Research Council under the FP7. Participation in the ECT* workshop "Relativistic Description of Two- and Three-Body Systems in Nuclear Physics" was partly funded by the HadronPhysics2 project of the European Community - Research Infrastructure Action under the FP7. Prepared in part by LLNL under Contract DE-AC52-07NA27344. Supported in part by the UNEDF SciDAC Collaboration under DOE grant DE-FC02-07ER41457. NR 27 TC 1 Z9 1 U1 0 U2 4 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 EI 1432-5411 J9 FEW-BODY SYST JI Few-Body Syst. PD APR PY 2011 VL 49 IS 1-4 BP 11 EP 18 DI 10.1007/s00601-010-0106-8 PG 8 WC Physics, Multidisciplinary SC Physics GA 729DK UT WOS:000287928500003 ER PT J AU Jeschonnek, S Van Orden, JW AF Jeschonnek, Sabine Van Orden, J. W. TI Exclusive Scattering from Unpolarized and Polarized Deuteron SO FEW-BODY SYSTEMS LA English DT Article AB We present results for exclusive electron scattering from polarized and unpolarized deuteron. We employ the Gross equation to describe the deuteron ground state, and we use the SAID parametrization of the full NN scattering amplitude to describe the final state interactions. We discuss properties of various asymmetries accessible with a polarized deuteron target and/or a polarized beam. C1 [Jeschonnek, Sabine] Ohio State Univ, Dept Phys, Lima, OH 45804 USA. [Van Orden, J. W.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Van Orden, J. W.] Jefferson Lab, Newport News, VA 23606 USA. RP Jeschonnek, S (reprint author), Ohio State Univ, Dept Phys, Lima, OH 45804 USA. EM jeschonnek.1@osu.edu; vanorden@jlab.org OI Jeschonnek, Sabine/0000-0002-8603-7589 FU U.S. Department of Energy (DOE) [DE-AC05-84ER40150]; National Science Foundation [PHY-0653312]; Jefferson Science Associates, LLC under U.S. DOE [DE-AC05-06OR23177] FX This work was supported in part by funds provided by the U.S. Department of Energy (DOE) under cooperative research agreement under No. DE-AC05-84ER40150 and by the National Science Foundation under grant No. PHY-0653312.; Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U. S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes. NR 19 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 J9 FEW-BODY SYST JI Few-Body Syst. PD APR PY 2011 VL 49 IS 1-4 BP 65 EP 70 DI 10.1007/s00601-010-0109-5 PG 6 WC Physics, Multidisciplinary SC Physics GA 729DK UT WOS:000287928500010 ER PT J AU Stadler, A Gross, F AF Stadler, Alfred Gross, Franz TI Covariant Spectator Theory: Foundations and Applications SO FEW-BODY SYSTEMS LA English DT Article ID RELATIVISTIC RESONANCE MODEL; ELASTIC ELECTRON-SCATTERING; PROTON-NUCLEUS SCATTERING; 3-NUCLEON BOUND-STATES; FEW-BODY PROBLEM; 3-BODY FORCES; LIGHT-NUCLEI; EQUATIONS; ENERGY; DELTA AB We provide a short overview of the covariant spectator theory and its applications. The basic ideas are introduced through the example of a phi(4)-type theory. High-precision models of the two-nucleon interaction are presented and the results of their use in calculations of properties of the two- and three-nucleon systems are discussed. A short summary of applications of this framework to other few-body systems is also presented. C1 [Stadler, Alfred] Univ Evora, Dept Fis, P-7000671 Evora, Portugal. [Stadler, Alfred] Univ Lisbon, Ctr Fis Nucl, P-1649003 Lisbon, Portugal. [Gross, Franz] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Gross, Franz] Coll William & Mary, Williamsburg, VA 23187 USA. RP Stadler, A (reprint author), Univ Evora, Dept Fis, P-7000671 Evora, Portugal. EM stadler@uevora.pt; gross@jlab.org RI Stadler, Alfred/C-5550-2009 OI Stadler, Alfred/0000-0002-9596-0770 FU Jefferson Science Associates, LLC under U.S. DOE [DE-AC05-06OR23177]; Fundacao para a Ciencia e a Tecnologia (FCT) [POCTI/ISFL/2/275] FX F. G. was supported by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. A. S. was supported by Fundacao para a Ciencia e a Tecnologia (FCT) under grant No. POCTI/ISFL/2/275. NR 56 TC 8 Z9 8 U1 0 U2 4 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 EI 1432-5411 J9 FEW-BODY SYST JI Few-Body Syst. PD APR PY 2011 VL 49 IS 1-4 BP 91 EP 110 DI 10.1007/s00601-010-0105-9 PG 20 WC Physics, Multidisciplinary SC Physics GA 729DK UT WOS:000287928500014 ER PT J AU Pena, MT Ramalho, G Gross, F AF Pena, M. T. Ramalho, G. Gross, Franz TI Electromagnetic Structure of the Delta Baryon within the Covariant Spectator Theory SO FEW-BODY SYSTEMS LA English DT Article AB We calculated all the electromagnetic observables for the nucleon and its lowest-lying Delta(1232) excitation within a constituent quark model for those two baryons based on the covariant spectator theory. Once the reactions gamma N -> N and gamma N -> Delta were described, we predicted without further adjusting of parameters the four electromagnetic Delta form factors: the electric charge G (E0), the magnetic dipole G (M1), the electric quadrupole G (E2) and the magnetic octupole G (M3). The results are compatible with the available experimental data and recent lattice QCD data. C1 [Pena, M. T.; Ramalho, G.] Univ Tecn Lisboa, Inst Super Tecn, Ctr Fis Teor Particulas, P-1049001 Lisbon, Portugal. [Pena, M. T.; Ramalho, G.] Univ Tecn Lisboa, Inst Super Tecn, Dpt Phys, P-1049001 Lisbon, Portugal. [Gross, Franz] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Pena, MT (reprint author), Univ Tecn Lisboa, Inst Super Tecn, Ctr Fis Teor Particulas, Av Rovisco Pais, P-1049001 Lisbon, Portugal. EM teresa.pena@ist.utl.pt; gilberto@cfpt.ist.utl.pt; gross@jlab.org RI Pena, Teresa/M-4683-2013 OI Pena, Teresa/0000-0002-3529-2408 FU Jefferson Science Associates, LLC under U. S. DOE [DE-AC05-06OR23177]; Fundacao para a Ciencia e a Tecnologia (FCT) [SFRH/BPD/26886/2006]; European Union FX F. G. was supported by Jefferson Science Associates, LLC under U. S. DOE Contract No. DE-AC05-06OR23177. G. R. was supported by Fundacao para a Ciencia e a Tecnologia (FCT) under Grant No. SFRH/BPD/26886/2006. This work has been supported in part by the European Union (HadronPhysics2 project Study of Strongly Interacting Matter). NR 18 TC 0 Z9 0 U1 0 U2 3 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 J9 FEW-BODY SYST JI Few-Body Syst. PD APR PY 2011 VL 49 IS 1-4 BP 111 EP 119 DI 10.1007/s00601-010-0175-8 PG 9 WC Physics, Multidisciplinary SC Physics GA 729DK UT WOS:000287928500015 ER PT J AU Nicmorus, D Eichmann, G Krassnigg, A Alkofer, R AF Nicmorus, D. Eichmann, G. Krassnigg, A. Alkofer, R. TI Delta Properties in the Rainbow-Ladder Truncation of Dyson-Schwinger Equations SO FEW-BODY SYSTEMS LA English DT Article ID QUARK-GLUON VERTEX; HADRON PHYSICS; SYMMETRY-BREAKING; LATTICE QCD; NUCLEON; MASS; CONFINEMENT; COVARIANT; MOMENTS; BARYONS AB We present a calculation of the three-quark core contribution to nucleon and Delta-baryon masses and Delta electromagnetic form factors in a Poincar,-covariant Faddeev approach. A consistent setup for the dressed-quark propagator, the quark-quark, quark-'diquark' and quark-photon interactions is employed, where all ingredients are solutions of their respective Dyson-Schwinger or Bethe-Salpeter equations in a rainbow-ladder truncation. The resulting Delta electromagnetic form factors concur with present experimental and lattice data. C1 [Nicmorus, D.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies FIAS, D-60438 Frankfurt, Germany. [Eichmann, G.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Krassnigg, A.; Alkofer, R.] Karl Franzens Univ Graz, Inst Phys, A-8010 Graz, Austria. RP Nicmorus, D (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM nicmorus@th.physik.uni-frankfurt.de OI Eichmann, Gernot/0000-0002-0546-2533 FU Austrian Science Fund FWF [P20592-N16, P20496-N16, J3039]; Helmholtz Young Investigator Grant [VH-NG-332]; Helmholtz International Center for FAIR FX We thank M. Blank, I.C. Cloet, C.S. Fischer, G. Ramalho, M. Schwinzerl, and R. Williams for fruitful discussions. This work was supported by the Austrian Science Fund FWF under Projects No. P20592-N16, No. P20496-N16, and Erwin-Schrodinger-Stipendium No. J3039, by the Helmholtz Young Investigator Grant VH-NG-332, and by the Helmholtz International Center for FAIR within the framework of the LOEWE program launched by the State of Hesse, GSI, BMBF and DESY. NR 49 TC 9 Z9 9 U1 0 U2 0 PU SPRINGER WIEN PI WIEN PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA SN 0177-7963 J9 FEW-BODY SYST JI Few-Body Syst. PD APR PY 2011 VL 49 IS 1-4 BP 255 EP 261 DI 10.1007/s00601-010-0194-5 PG 7 WC Physics, Multidisciplinary SC Physics GA 729DK UT WOS:000287928500026 ER PT J AU Swarbreck, SM Sudderth, EA St Clair, SB Salve, R Castanha, C Torn, MS Ackerly, DD Andersen, GL AF Swarbreck, Stephanie M. Sudderth, Erika A. St Clair, Samuel B. Salve, Rohit Castanha, Cristina Torn, Margaret S. Ackerly, David D. Andersen, Gary L. TI Linking leaf transcript levels to whole plant analyses provides mechanistic insights to the impact of warming and altered water availability in an annual grass SO GLOBAL CHANGE BIOLOGY LA English DT Article DE Avena barbata; drought; flowering; glutamine synthetase; nitrogen; photosynthesis; senescence; warming ID ELEVATED CARBON-DIOXIDE; AMINO-ACID-METABOLISM; GLUTAMINE-SYNTHETASE; NITRATE REDUCTASE; GENE-EXPRESSION; ARABIDOPSIS-THALIANA; CLIMATE-CHANGE; AMMONIUM ASSIMILATION; ECOLOGICAL GENOMICS; NITROGEN-METABOLISM AB Insights into the effects of climatic changes on primary metabolism in plants will enhance our understanding of ecosystem response to global climate change. In a greenhouse experiment, we studied the impact of total annual rainfall, intermittent wet and dry periods, and increased soil and air temperature (+3 degrees C) on an annual C(3) grass, Avena barbata, dominant in many California and Mediterranean grasslands. In order to gain a mechanistic understanding of plant response, analyses were carried out at scales ranging from the leaf (gene expression and enzyme activity) to the whole plant (biomass and phenology). Plant gene expression was more responsive to short-term changes in water availability (wet vs. dry periods) than to differences in cumulative rainfall. The effect of elevated temperature depended on total rainfall: flowering started earlier in high vs. low temperature under high rainfall, but not under low rainfall. Gene expression indicative of advanced development could be measured in leaves several weeks before flowering, linking gene expression to the phenological impact of altered climate. Given these responses of a dominant annual grass to manipulation of rain and temperature, we suggest that the impact of increased temperature on California annual grasslands will vary between wet and dry years. In wet years, biomass production will increase and flowering will occur earlier compared with dry years. Leaf transcript abundance analyses provided insights into the mechanisms of plant response to warming and altered precipitation patterns. C1 [Swarbreck, Stephanie M.; Salve, Rohit; Castanha, Cristina; Torn, Margaret S.; Ackerly, David D.; Andersen, Gary L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Sudderth, Erika A.; Ackerly, David D.] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA. [St Clair, Samuel B.] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA. RP Swarbreck, SM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM Stephanie.swarbreck@gmail.com RI Castanha, Cristina/D-3247-2015; Ackerly, David/A-1247-2009; Young, Kristina/M-3069-2014; Andersen, Gary/G-2792-2015; Torn, Margaret/D-2305-2015 OI Castanha, Cristina/0000-0001-7327-5169; Swarbreck, Stephanie M./0000-0001-8355-7354; Ackerly, David/0000-0002-1847-7398; Andersen, Gary/0000-0002-1618-9827; FU Climate Change Research Division; University of California, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; US Department of Energy's Office of Science FX We are thankful to Markus Kleber and Alex Morales for assistance with soil collection and mesocosm construction, and Marc Fischer for assistance with soil and greenhouse climate data. We also thank Melissa Crago, Tara Macomber, Paul Cook, Julia Shams, and Kallista Bley for helping to maintain the watering system and assisting with sample collection and measurements. This work was performed under the auspices of the US Department of Energy's Office of Science, Biological and Environmental and Research Program, Climate Change Research Division, and by the University of California, Lawrence Berkeley National Laboratory, under Contract No. DE-AC02-05CH11231. NR 65 TC 9 Z9 9 U1 6 U2 47 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1354-1013 J9 GLOBAL CHANGE BIOL JI Glob. Change Biol. PD APR PY 2011 VL 17 IS 4 BP 1577 EP 1594 DI 10.1111/j.1365-2486.2010.02359.x PG 18 WC Biodiversity Conservation; Ecology; Environmental Sciences SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 728CZ UT WOS:000287853000007 ER PT J AU Watson, DJ Strom, DJ AF Watson, David J. Strom, Daniel J. TI RADIATION DOSES TO MEMBERS OF THE US POPULATION FROM UBIQUITOUS RADIONUCLIDES IN THE BODY: PART 1, AUTOPSY AND IN VIVO DATA SO HEALTH PHYSICS LA English DT Article DE dosimetry; internal; radiation; background; thorium; uranium ID NEW-YORK-CITY; SOFT-TISSUES; HUMAN-BONE; UNITED-STATES; WHOLE-BODY; RADIUM-226; LEAD-210; POTASSIUM; RESIDENTS; EXPOSURE AB This paper is Part 1 of a three-part series investigating steady-state effective dose rates to residents of the United States from intakes of ubiquitous radionuclides, including radionuclides occurring naturally, radionuclides whose concentrations are technologically enhanced, and anthropogenic radionuclides. This series of papers explicitly excludes intakes from inhaling Rn-222, Rn-220, and their short-lived decay products; it also excludes intakes of radionuclides in occupational and medical settings. In this work, it is assumed that instantaneous dose rates in target organs are proportional to steady-state radionuclide concentrations in source regions. The goal of Part 1 of this work was to review, summarize, and characterize all published and some unpublished data for U. S. residents on ubiquitous radionuclide concentrations in tissues and organs. Forty-five papers and reports were obtained and their data reviewed, and three data sets were obtained via private communication. The 45 radionuclides of interest are the U-238 series (14 nuclides), the actinium series (headed by U-235; 11 nuclides), and the Th-232 series (11 nuclides); primordial radionuclides Rb-87 and K-40; cosmogenic and fallout radionuclides C-14 and H-3; and purely anthropogenic radionuclides Cs-137-(137)mBa, I-129, and Sr-90-Y-90. Measurements judged to be relevant were available for only 15 of these radionuclides: U-238, U-235, U-234, Th-232, Th-230, Th-228, Ra-228, Ra-226, Pb-210, Po-210, Cs-137, Rb-87, K-40, C-14, and H-3. Recent and relevant measurements were not available for I-129 and Sr-90-Y-90. A total of 11,741 radionuclide concentration measurements were found in one or more tissues or organs from 14 states. Data on age, gender, geographic locations, height, and weight of subjects were available only sporadically. Too often authors did not provide meaningful values of uncertainty of measurements, so that variability in data sets is confounded with measurement uncertainty. The following papers detail how these shortcomings are overcome to achieve the goals of the three-part series. Health Phys. 100(4): 359-376; 2011 C1 [Strom, Daniel J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Strom, DJ (reprint author), Battelle Mem Inst, Richland, WA 99352 USA. EM strom@pnl.gov OI Strom, Daniel J/0000-0002-1710-3634 FU U.S. Department of Energy [DE-AC05-76RL01830] FX The authors would like to thank Paul S. Stansbury, R. Gene Schreckhise, and Bruce A. Napier for insightful discussions and guidance; Michael G. Stabin for providing dose factors and advice; Timothy P. Lynch for providing 40K and 137Cs whole body-data; Anthony C. James and Sergei Y. Tolmachev for graciously providing uranium and thorium data; Isabelle M. Fisenne for locating and digitizing one of her reports; Samuel E. Glover for discussions; and Fred A. Mettler for providing UNSCEAR data. The findings and conclusions in this report are those of the authors and do not necessarily represent the views of any funding agency. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy under Contract DE-AC05-76RL01830. NR 53 TC 4 Z9 4 U1 1 U2 5 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 APR PY 2011 VL 100 IS 4 BP 359 EP 376 DI 10.1097/HP.0b013e318203d7fb PG 18 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 726QO UT WOS:000287741400001 PM 21350344 ER PT J AU Watson, DJ Strom, DJ AF Watson, David J. Strom, Daniel J. TI RADIATION DOSES TO MEMBERS OF THE US POPULATION FROM UBIQUITOUS RADIONUCLIDES IN THE BODY: PART 2, METHODS AND DOSE CALCULATIONS SO HEALTH PHYSICS LA English DT Article DE dosimetry, internal; radiation, background; thorium; uranium ID UNCERTAINTY ANALYSIS; DISTRIBUTIONS; MODELS; ERRORS; LIMITS; POWER AB This paper is Part 2 of a three-part series investigating effective dose rates to residents of the United States from intakes of ubiquitous radionuclides, including radionuclides occurring naturally, radionuclides whose concentrations are technologically enhanced, and anthropogenic radionuclides. This series of papers explicitly excludes intakes from inhaling Rn-222, Rn-220, and their short-lived decay products; it also excludes intakes of radionuclides in occupational and medical settings. In this work, it is assumed that instantaneous dose rates in target organs are proportional to steady-state radionuclide concentrations in source regions. Part 1 reviewed, summarized, characterized, and grouped all published and some unpublished data for U.S. residents on ubiquitous radionuclide concentrations in tissues and organs. Assumptions about equilibrium with long-lived parents are made for the 28 other radionuclides in these series lacking data. This paper describes the methods developed to group the collected data into source regions described in the Radiation Dose Assessment Resource (RADAR) dosimetric methodology. Methods for converting the various units of data published over 50 y into a standard form are developed and described. Often, meaningful values of uncertainty of measurements were not published, so that variability in data sets is confounded with measurement uncertainty. A description of the methods developed to estimate variability is included in this paper. The data described in Part 1 are grouped by gender and age to match the RADAR dosimetric phantoms. Within these phantoms, concentration values are grouped into source tissue regions by radionuclide, and they are imputed for source regions lacking tissue data. Radionuclide concentrations are then imputed for the source regions of other phantoms with missing concentration values, and the uncertainties of the imputed values are increased. The concentrations of hollow organs' contents are calculated, and activities are apportioned to the bone source regions using assumptions about each radionuclide's bone-seeking behavior. The data sets are then ready to be used to estimate equivalent dose rates to target tissues from these source regions. The target tissues are then mapped to lists of tissues with International Commission on Radiation Protection (ICRP) tissue weighting factors, or they are mapped to surrogate tissue regions when there is no direct match. Effective dose rates, using ICRP tissue weighting factors recommended in 1977, 1990, and 2007, can be calculated from the tissue and organ equivalent dose rates. These effective dose rates are reported in Part 3 of this series. Health Phys. 100(4): 377-401; 2011 C1 [Strom, Daniel J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Strom, DJ (reprint author), Battelle Mem Inst, Richland, WA 99352 USA. EM strom@pnl.gov OI Strom, Daniel J/0000-0002-1710-3634 FU U.S. Department of Energy [DE-AC05-76RL01830] FX The authors would like to thank Paul S. Stansbury, R. Gene Schreckhise, and Bruce A. Napier for insightful discussions and guidance as well as Michael G. Stabin for providing dose factors and advice. The authors acknowledge many helpful comments and suggestions from two anonymous reviewers. The findings and conclusions in this report are those of the authors and do not necessarily represent the views of any funding agency. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830. NR 30 TC 1 Z9 1 U1 0 U2 0 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 APR PY 2011 VL 100 IS 4 BP 377 EP 401 DI 10.1097/HP.0b013e318203d9a7 PG 25 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 726QO UT WOS:000287741400002 PM 21350345 ER PT J AU Watson, DJ Strom, DJ AF Watson, David J. Strom, Daniel J. TI RADIATION DOSES TO MEMBERS OF THE US POPULATION FROM UBIQUITOUS RADIONUCLIDES IN THE BODY: PART 3, RESULTS, VARIABILITY, AND UNCERTAINTY SO HEALTH PHYSICS LA English DT Article DE dosimetry, internal; radiation, background; thorium; uranium AB This paper is Part 3 of a three-part series investigating effective dose rates to residents of the United States from intakes of ubiquitous radionuclides, including radionuclides occurring naturally, radionuclides whose concentrations are technologically enhanced, and anthropogenic radionuclides. The radionuclides of interest are the U-238 series (14 nuclides), the actinium series (headed by U-235; 11 nuclides), and the Th-232 series (11 nuclides); primordial radionuclides Rb-87 and (40) K; cosmogenic and fallout radionuclides C-14 and H-3; and purely anthropogenic radionuclides Cs-137-(137)mBa, I-129 and Sr-90-Y-90. This series of papers explicitly excludes intakes from inhaling Rn-222, Rn-220, and their short-lived decay products; it also excludes intakes of radionuclides in occupational and medical settings. In this work, it is assumed that instantaneous dose rates in target organs are proportional to steady-state radionuclide concentrations in source regions. Part 1 reviewed, summarized, characterized, and grouped all published and some unpublished data for U. S. residents on ubiquitous radionuclide concentrations in tissues and organs. Part 2 described the methods used to organize the data collected in Part 1 and segregate it into the ages and genders defined by the study, including imputed missing values from the existing data, apportioned activity in bone, and imputed activity in hollow organ contents and the remainder of the body. This paper estimates equivalent dose rates to target tissues from source regions and maps target tissues to lists of tissues with International Commission on Radiation Protection (ICRP) tissue-weighting factors or to surrogate tissue regions when there is no direct match. Effective dose rates using ICRP tissue-weighting factors recommended in 1977, 1990, and 2007, are then calculated, and an upper bound of variability of the effective dose rate is estimated by calculating the average coefficients of variation (CV), assuming all variance is due to variability. Most of the data were for adult males, whose average effective dose rate is estimated to be 337 mu Sv y(-1) (CV = 0.65, geometric mean = 283 mu Sv y(-1), geometric standard deviation s(G) = 1.81) using 2007 ICRP tissue-weighting factors. This result is between the National Council on Radiation Protection and Measurements' 1987 estimate of 390 mu Sv y(-1) (using 1977 w(T)s) and its 2009 estimate of 285 mu Sv y(-1) (using 2007 w(T)s) and is higher than the United Nations Scientific Committee on the Effects of Atomic Radiation's 2000 estimate of 310 mu Sv y(-1) (using 1990 w(T)s). The methods and software developed for this project are sufficiently detailed and sufficiently general to be usable with autopsy data from any or all countries. Health Phys. 100(4): 402-416; 2011 C1 [Strom, Daniel J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Strom, DJ (reprint author), Battelle Mem Inst, Richland, WA 99352 USA. EM strom@pnl.gov OI Strom, Daniel J/0000-0002-1710-3634 FU U.S. Department of Energy [DE-AC05-76RL01830] FX The authors would like to thank Paul S. Stansbury, R. Gene Schreckhise, and Bruce A. Napier for insightful discussions and guidance, and Michael G. Stabin for providing dose factors and advice. The findings and conclusions in this report are those of the authors and do not necessarily represent the views of any funding agency. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830. NR 18 TC 0 Z9 0 U1 0 U2 2 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 APR PY 2011 VL 100 IS 4 BP 402 EP 416 DI 10.1097/HP.0b013e318203d9d0 PG 15 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 726QO UT WOS:000287741400003 PM 21350346 ER PT J AU Justus, AL AF Justus, Alan L. TI A NEW INTEGRAL-MODE SURVEY METHOD FOR THE DETERMINATION OF AVERAGE SURFACE CONTAMINATION LEVELS SO HEALTH PHYSICS LA English DT Article DE activity-weighted size distributions; instrumentation; radioactivity, residual; scanning AB A new integral-mode survey method is described for the direct measurement of average surface contamination levels. It is a method made possible by the modern generation of integrating ratemeters. Experiments were conducted to show both the effects of sources at a distance from or off-center from a probe. Case trials were conducted that demonstrated the method. It allows essentially four surveys to be performed for the price of one. Health Phys. 100(4): 435-441; 2011 C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Justus, AL (reprint author), Los Alamos Natl Lab, MS J573, Los Alamos, NM 87545 USA. EM ajustus@lanl.gov FU U.S. Department of Energy at ANL [W-31-109-Eng-38]; Los Alamos National Laboratory [DE-AC52-06NA25396]; U.S. Department of Energy FX The U.S. Department of Energy supported this work at ANL under Contract W-31-109-Eng-38. The author is indebted to Chad Westphal, an ANL summer student, for providing the data and analysis in the experiment using the copper masking plates with slots, and to Dave Pepalis for the manufacture and information on the so-called ANL Plate Sources. The author would also like to thank Mac Robinet, Lee Sprouse, Jr., and Bill Munyon for providing the data used in the Actual Case Trials. They were subsequently also involved in technician training exercises and the actual field use of this method in the performance of both characterization and pre-certification surveys.; This work has been authored by an employee of Los Alamos National Security, LLC, operator of the Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting this work for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce this work, or allow others to do so for United States Government purposes. NR 3 TC 0 Z9 0 U1 0 U2 0 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 APR PY 2011 VL 100 IS 4 BP 435 EP 441 DI 10.1097/HP.0b013e3181f8a87a PG 7 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 726QO UT WOS:000287741400005 PM 21350348 ER PT J AU Armstrong, A Crawford, M Koleske, D AF Armstrong, A. Crawford, M. H. Koleske, D. D. TI Quantitative and Depth-Resolved Investigation of Deep-Level Defects in InGaN/GaN Heterostructures SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article; Proceedings Paper CT 52nd Electronic Materials Conference (EMC) CY JUN 23-25, 2010 CL Notre Dame, IN DE Deep level; compound semiconductor; InGaN ID FIELD-EFFECT TRANSISTORS; OPTICAL-PROPERTIES; STOKES SHIFT; GAN; POLARIZATION; EPILAYERS AB Deep-level defects in In0.17Ga0.83N/In0.02Ga0.98N/p-GaN:Mg heterostructures were studied using deep-level optical spectroscopy (DLOS). Depth-resolved DLOS was achieved by exploiting the polarization-induced electric fields to discriminate among defects located in the In0.17Ga0.83N and the In0.02Ga0.98N regions. Growth conditions for the In (x) Ga1-x N layers were nominally the same as those in InGaN/GaN multi-quantum-well (MQW) structures, so the defect states reported here are expected to be active in MQW regions. Thus, this work provides important insight into defects that are likely to influence MQW radiative efficiency. In0.17Ga0.83N-related bandgap states were observed at E (v) + 1.60 eV and E (v) + 2.59 eV, where E (v) is the valence-band maximum, compared with levels at E (v) + 1.85 eV, E (v) + 2.51 eV, and E (v) + 3.30 eV in the In0.02Ga0.98N region. A lighted capacitance-voltage technique was used to determine the areal density of deep states. The possible origins of the associated defects are considered along with their potential roles in light-emitting diodes. C1 [Armstrong, A.; Crawford, M. H.; Koleske, D. D.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Armstrong, A (reprint author), Sandia Natl Labs, Albuquerque, NM 87185 USA. EM aarmstr@sandia.gov FU EERE/NETL; US Department of Energy [M6802094]; US Department of Energy, Office of Basic Energy Sciences; National Nuclear Security Administration [DE-AC04-94AL85000] FX DLOS measurements at 0 V, modeling, and growth were supported by EERE/NETL, US Department of Energy under Project Number M6802094 (Brian Dotson and Sean Evans, Program Managers), and reverse-bias DLOS measurements were supported by Sandia's Solid-State Lighting Science Energy Frontier Research Center, funded by the US Department of Energy, Office of Basic Energy Sciences. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 24 TC 4 Z9 4 U1 4 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0361-5235 EI 1543-186X J9 J ELECTRON MATER JI J. Electron. Mater. PD APR PY 2011 VL 40 IS 4 BP 369 EP 376 DI 10.1007/s11664-010-1453-4 PG 8 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 726XB UT WOS:000287759100003 ER PT J AU Matthews, WJ More, KL Walker, LR AF Matthews, Wendy J. More, Karren L. Walker, Larry R. TI Primary Surface Recuperator Alloy Oxidation: A Comparison of Accelerated Engine Testing to Field Operation SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article AB The Capstone C65 Microturbine primary surface recuperator (PSR) core has been manufactured from Haynes alloy HR-120 since 2005 (Microturbine is a registered trademark of Capstone Turbine Corporation; Haynes and HR-120 are trademarks of Haynes International, Inc.). When exposed to the harsh operating environment of the microturbine PSR, HR-120 forms a protective oxide scale that is resistant to the effects of the water vapor present in the exhaust gas. Long-term accelerated microturbine testing with samples in a modified PSR with a removable aft dome is ongoing at an elevated turbine exit temperature (TET) similar to 100 degrees F higher than normal operation. The elevated TET test engine is operated at steady-state conditions, and the engine is shut down at predetermined intervals for sample removal. Material characterization of the elevated TET samples has been carried out by Capstone Turbine Corporation in collaboration with Oak Ridge National Laboratory. The surface oxide scale formation and associated alloy compositional changes have been evaluated for elevated TET samples with operating lives ranging from similar to 1800 h to similar to 26,500 h. In addition, field-operated HR-120 recuperators have been sectioned and samples have been evaluated for operating lives ranging from similar to 5500 h to similar to 18,000 h. Results from the microstructural and compositional analyses of both the long-term steady-state elevated TET HR-120 samples and the field-operated HR-120 recuperator samples will be presented and compared. C1 [Matthews, Wendy J.] Capstone Turbine Corp, Chatsworth, CA 91311 USA. [More, Karren L.; Walker, Larry R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Matthews, WJ (reprint author), Capstone Turbine Corp, 21211 Nordhoff St, Chatsworth, CA 91311 USA. RI More, Karren/A-8097-2016 OI More, Karren/0000-0001-5223-9097 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy; Vehicle Technologies Program FX This research at the Oak Ridge National Laboratory's High Temperature Materials Laboratory was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, and Vehicle Technologies Program. NR 25 TC 0 Z9 0 U1 0 U2 4 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD APR PY 2011 VL 133 IS 4 AR 042302 DI 10.1115/1.4002174 PG 5 WC Engineering, Mechanical SC Engineering GA 684IM UT WOS:000284543600011 ER PT J AU Colella, WG Schneider, SH Kammen, DM Jhunjhunwala, A Teo, N AF Colella, Whitney G. Schneider, Stephen H. Kammen, Daniel M. Jhunjhunwala, Aditya Teo, Nigel TI Optimizing the Design and Deployment of Stationary Combined Heat and Power Fuel Cell Systems for Minimum Costs and Emissions-Part I: Model Design SO JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY LA English DT Article DE maximizing emission reduction and economic saving simulator (MERESS) optimization tool; fuel cell system (FCS); greenhouse gas emissions (GHGs); carbon dioxide (CO(2)) emissions; networks; cogeneration; combined heat and power (CHP); cost; profitability; thermal distribution networks; low-voltage electricity distribution networks; optimization; heat recovery; distributed energy systems; operating strategy; stand alone (SA); networked (NW); heat load following (HLF); electricity load following (ELF); no load following (NLF); variable heat-to-power ratio (VHP); fixed heat-to-power ratio (FHP) ID FCS AB Stationary combined heat and power (CHP) fuel cell systems (FCSs) can provide electricity and heat for buildings and can reduce greenhouse gas (GHG) emissions significantly if they are configured with an appropriate installation and operating strategy. The maximizing emission reduction and economic saving simulator (MERESS) is an optimization tool that was developed to evaluate novel strategies for installing and operating CHP FCSs in buildings. These novel strategies include networking, load following, and the use of variable heat-to-power ratios, all of which industry typically has not implemented. A primary goal of models like MERESS is to use relatively inexpensive simulation studies to identify more financially and environmentally effective ways to design and install FCSs. Models like MERESS can incorporate the pivotal choices that FCS manufacturers, building owners, emission regulators, competing generators, and policy makers make, and empower them to evaluate the effect of their choices directly. MERESS directly evaluates trade-offs among three key goals: GHG reductions, energy cost savings for building owners, and high sales revenue for FCS manufacturers. MERESS allows one to evaluate these design trade-offs and to identify the optimal control strategies and building load curves for installation based on either (1) maximum GHG emission reductions or (2) maximum cost savings to building owners. Part I discusses the motivation and key assumptions behind MERESS model development. Part II discusses run results from MERESS for a California town and makes recommendations for further FCS installments (Colella et al., 2011, "Optimizing the Design and Deployment of Stationary Combined Heat and Power Fuel Cell Systems for Minimum Costs and Emissions-Part II: Model Results," ASME J. Fuel Cell Sci. Technol., 8(2), p. 021002). [DOI: 10.1115/1.4001756] C1 [Colella, Whitney G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Schneider, Stephen H.] Stanford Univ, Ctr Environm Sci & Policy, Stanford, CA 94305 USA. [Kammen, Daniel M.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA. [Jhunjhunwala, Aditya; Teo, Nigel] Univ Calif Berkeley, Terman Engn Ctr, Berkeley, CA 94720 USA. RP Colella, WG (reprint author), Sandia Natl Labs, POB 5800,MS 1108, Albuquerque, NM 87185 USA. EM wgcolel@sandia.gov; shs@stanford.edu; kammen@berkeley.edu; aditya11@stanfordalumni.org; nigelteo@gmail.com NR 49 TC 5 Z9 5 U1 1 U2 10 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 1550-624X J9 J FUEL CELL SCI TECH JI J. Fuel Cell Sci. Technol. PD APR PY 2011 VL 8 IS 2 AR 021001 DI 10.1115/1.4001756 PG 13 GA 689XR UT WOS:000284964800001 ER PT J AU Colella, WG Schneider, SH Kammen, DM Jhunjhunwala, A Teo, N AF Colella, Whitney G. Schneider, Stephen H. Kammen, Daniel M. Jhunjhunwala, Aditya Teo, Nigel TI Optimizing the Design and Deployment of Stationary Combined Heat and Power Fuel Cell Systems for Minimum Costs and Emissions-Part II: Model Results SO JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY LA English DT Article DE maximizing emission reductions and economic savings simulator optimization tool; fuel cell system; greenhouse gas emissions; carbon dioxide emissions; networks; cogeneration; combined heat and power; cost; profitability; thermal distribution networks; low-voltage electricity distribution networks; optimization; heat recovery; distributed energy systems; operating strategy; stand-alone; networked; heat load following; electricity load following; no load following; variable heat-to-power ratio; fixed heat-to-power ratio ID BIOGAS AB The maximizing emission reductions and economic savings simulator (MERESS) is an optimization tool that evaluates novel strategies for installing and operating combined heat and power (CHP) fuel cell systems (FCSs) in buildings. This article discusses the deployment of MERESS to show illustrative results for a California campus town and, based on these results, makes recommendations for further installations of FCSs to reduce greenhouse gas (GHG) emissions. MERESS is used to evaluate one of the most challenging FCS types to use for GHG reductions, the phosphoric acid fuel cell (PAFC) system. These PAFC systems are tested against a base case of a CHP combined cycle gas turbine (CCGT). Model results show that three competing goals (GHG emission reductions, cost savings to building owners, and FCS manufacturer sales revenue) are best achieved with different strategies but that all three goals can be met reasonably with a single approach. According to MERESS, relative to a base case of only a CHP CCGT providing heat and electricity with no FCSs, the town achieves the highest (1) GHG emission reductions, (2) cost savings to building owners, and (3) FCS manufacturer sales revenue each with three different operating strategies, under a scenario of full incentives and a $100/tonne carbon dioxide (CO(2)) tax (scenario D). The town achieves its maximum CO(2) emission reduction, 37% relative to the base case with operating strategy V: stand-alone (SA) operation, no load following (NLF), and a fixed heat-to-power ratio (FHP) (SA, NLF, and FHP; scenario E). The town's building owners gain the highest cost savings, 25% with strategy I: electrically and thermally networked (NW), electricity power load following (ELF), and a variable heat-to-power ratio (VHP) (NW, ELF, and VHP; scenario D). FCS manufacturers generally have the highest sales revenue with strategy III: NW, NLF with a FHP (NW, NLF, and FHP; scenarios B, C, and D). Strategies III and V are partly consistent with the way that FCS manufacturers design their systems today, primarily as NLF with a FHP. By contrast, strategy I is novel for the fuel cell industry, in particular, in its use of a VHP and thermal networking. Model results further demonstrate that FCS installations can be economical for building owners without any carbon tax or government incentives. Without any carbon tax or state and federal incentives (scenario A), strategy I is marginally economical with 3% energy cost savings but with a 29% reduction in CO(2) emissions. Strategy I is the most economical strategy for building owners in all scenarios (scenarios A-D) and, at the same time, reasonably achieves other goals of large GHG emission reductions and high FCS manufacturer sales revenue. Although no particular building type stands out as consistently achieving the highest emission reductions and cost savings (scenarios B-2 and E-2), certain building load curves are clear winners. For example, buildings with load curves similar to Stanford's Mudd chemistry building (a wet laboratory) achieve maximal cost savings (1.5% with full federal and state incentives but no carbon tax) and maximal CO(2) emission reductions (32%) (scenarios B-2 and E-2). Finally, based on these results, this work makes recommendations for reducing GHG further through FCS deployment. (Part I of II articles discusses the motivation and key assumptions behind the MERESS model development.) [DOI: 10.1115/1.4001757] C1 [Colella, Whitney G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Schneider, Stephen H.] Stanford Univ, Ctr Environm Sci & Policy, Stanford, CA 94305 USA. [Kammen, Daniel M.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA. [Jhunjhunwala, Aditya; Teo, Nigel] Stanford Univ, Terman Engn Ctr, Stanford, CA 94305 USA. RP Colella, WG (reprint author), Sandia Natl Labs, POB 5800,MS 1108, Albuquerque, NM 87185 USA. EM wgcolel@sandia.gov; shs@stanford.edu; kammen@berkeley.edu; aditya11@stanfordalumni.org; nigelteo@gmail.com NR 17 TC 5 Z9 5 U1 0 U2 9 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 1550-624X J9 J FUEL CELL SCI TECH JI J. Fuel Cell Sci. Technol. PD APR PY 2011 VL 8 IS 2 AR 021002 DI 10.1115/1.4001757 PG 16 GA 689XR UT WOS:000284964800002 ER PT J AU Bagaria, A Kumaran, D Burley, SK Swaminathan, S AF Bagaria, Ashima Kumaran, Desigan Burley, Stephen K. Swaminathan, Subramanyam TI Structural basis for a ribofuranosyl binding protein: Insights into the furanose specific transport SO PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS LA English DT Article DE nanolipoprotein particles; nanodiscs; fluorescence correlation spectroscopy; membrane proteins ID X-RAY STRUCTURE; BACTERIAL CHEMOTAXIS; ESCHERICHIA-COLI; SALMONELLA-TYPHIMURIUM; MALTOSE-BINDING; RECEPTOR; REFINEMENT; RESOLUTION; EVOLUTION; LIGAND C1 [Bagaria, Ashima; Kumaran, Desigan; Swaminathan, Subramanyam] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Burley, Stephen K.] Eli Lilly & Co, Lilly Biotechnol Ctr, San Diego, CA 92121 USA. RP Swaminathan, S (reprint author), Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. EM swami@bnl.gov FU National Institute of General Medical Sciences [GM074945, DEAC02-98CH10886] FX Grant sponsor: The National Institute of General Medical Sciences; Grant numbers: GM074945, DEAC02-98CH10886 NR 33 TC 3 Z9 3 U1 0 U2 1 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0887-3585 J9 PROTEINS JI Proteins PD APR PY 2011 VL 79 IS 4 BP 1352 EP 1357 DI 10.1002/prot.22965 PG 6 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 731VY UT WOS:000288138700028 PM 21387413 ER PT J AU Prasad, SV Battaile, CC Kotula, PG AF Prasad, S. V. Battaile, C. C. Kotula, P. G. TI Friction transitions in nanocrystalline nickel SO SCRIPTA MATERIALIA LA English DT Article DE Nanocrystalline metals; Wear; Friction; Grain boundary sliding ID HALL-PETCH BEHAVIOR; SLIDING CONTACT; METALS; WEAR; DEFORMATION; EVOLUTION AB Nanocrystalline Ni films with 20-100 nm size grains exhibited either of two distinct friction behaviors, mu similar to 0.30-0.35 or mu similar to 0.6-0.7, depending upon the contact pressure and sliding speed. Friction-induced changes to grain structure were analyzed by cross-sectional transmission electron microscopy of wear surfaces. Formation of stable ultrafine nanocrystalline layers with 2-10 nm size grains underneath the wear surface may be responsible for the observed friction transitions, possibly due to a transition from traditional dislocation plasticity to deformation controlled by grain boundaries. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Prasad, S. V.; Battaile, C. C.; Kotula, P. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Prasad, SV (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM svprasa@sandia.gov RI Kotula, Paul/A-7657-2011 OI Kotula, Paul/0000-0002-7521-2759 FU US Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 24 TC 14 Z9 14 U1 4 U2 17 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6462 J9 SCRIPTA MATER JI Scr. Mater. PD APR PY 2011 VL 64 IS 8 BP 729 EP 732 DI 10.1016/j.scriptamat.2010.12.027 PG 4 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 728XR UT WOS:000287908300010 ER PT J AU Su, LS Gan, YX Zhang, LH AF Su, Lusheng Gan, Yong X. Zhang, Lihua TI Thermoelectricity of nanocomposites containing TiO2-CoO coaxial nanocables SO SCRIPTA MATERIALIA LA English DT Article DE Oxide nanocomposites; Thermoelectricity; Nanotube and nanocable; Seebeck coefficient ID LIQUID-PHASE DEPOSITION; ELECTRICAL-CONDUCTIVITY; NANOTUBE ARRAYS; OXIDE; FABRICATION AB TiO2-CoO coaxial nanocables were deposited into anodic aluminum oxide (AAO) nanoporous templates to form nanocomposite materials. Electron microscopic analysis was conducted to reveal their structures. Seebeck coefficients of the composites were measured. The highest absolute value of Seebeck coefficient is 393 mu V K-1 for the TiO2 nanotube-filled AAO. The TiO2-CoO coaxial nanocable-filled AAO has a lower absolute value of 300 mu V K-1. Both composites showed n-type behavior. The effect of Ag nanoparticles addition on the thermoelectric behavior was also examined. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Su, Lusheng; Gan, Yong X.] Univ Toledo, Coll Engn, Dept Mech Ind & Mfg Engn, Toledo, OH 43606 USA. [Zhang, Lihua] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Gan, YX (reprint author), Univ Toledo, Coll Engn, Dept Mech Ind & Mfg Engn, 2801 W Bancroft St, Toledo, OH 43606 USA. EM yong.gan@utoledo.edu RI Zhang, Lihua/F-4502-2014 FU University of Toledo; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX This work is supported by a Doctoral Instrumentation Graduate Fellowship and start-up fund from University of Toledo. The transmission electron microscopic research carried out at the Center for Functional Nanomaterials, Brookhaven National Laboratory is supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-98CH10886. NR 20 TC 9 Z9 9 U1 1 U2 25 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6462 J9 SCRIPTA MATER JI Scr. Mater. PD APR PY 2011 VL 64 IS 8 BP 745 EP 748 DI 10.1016/j.scriptamat.2010.12.038 PG 4 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 728XR UT WOS:000287908300014 ER PT J AU Jang, JI Yoo, BG Kim, YJ Oh, JH Choi, IC Bei, HB AF Jang, Jae-il Yoo, Byung-Gil Kim, Yong-Jae Oh, Jun-Hak Choi, In-Chul Bei, Hongbin TI Indentation size effect in bulk metallic glass SO SCRIPTA MATERIALIA LA English DT Article DE Nanoindentation; Bulk amorphous materials; Hardness; Size effect ID DEFORMATION-BEHAVIOR; PLASTIC-DEFORMATION; LENGTH SCALES; NANOINDENTATION; COMPRESSION; STRENGTH; DIAMETER; PILLARS; ALLOY; STATE AB We systematically explored the indentation size effect (ISE), which is not expected to occur in non-crystalline materials due to the absence of dislocations and strain hardening, in bulk metallic glass (BMG). A series of nanoindentation experiments with different indenters result in somewhat surprising observations that show that ISE clearly does exist in BMG and can even be described by the ISE model for crystalline materials. The results are discussed in terms of possible mechanisms responsible for the ISE in BMG. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Jang, Jae-il; Yoo, Byung-Gil; Kim, Yong-Jae; Oh, Jun-Hak; Choi, In-Chul] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea. [Bei, Hongbin] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Jang, JI (reprint author), Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea. EM jijang@hanyang.ac.kr; beih@ornl.gov RI Jang, Jae-il/A-3486-2011; Kim, Young-Jae/F-1491-2011; Choi, In-Chul/E-1499-2014; OI Jang, Jae-il/0000-0003-4526-5355; Bei, Hongbin/0000-0003-0283-7990 FU Ministry of Education, Science and Technology [2010-0025526]; US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division FX This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2010-0025526). The research at ORNL (H.B.) was sponsored by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. We thank Prof. W.D. Nix and the anonymous reviewer for valuable comments. NR 36 TC 22 Z9 23 U1 2 U2 29 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6462 J9 SCRIPTA MATER JI Scr. Mater. PD APR PY 2011 VL 64 IS 8 BP 753 EP 756 DI 10.1016/j.scriptamat.2010.12.036 PG 4 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 728XR UT WOS:000287908300016 ER PT J AU Atwater, MA Phillips, J Leseman, ZC AF Atwater, Mark A. Phillips, Jonathan Leseman, Zayd C. TI Accelerated growth of carbon nanofibers using physical mixtures and alloys of Pd and Co in an ethylene-hydrogen environment SO CARBON LA English DT Article ID BUTENE ISOMERIZATION; CATALYTIC SYNERGISM; MOLECULAR HYDROGEN; IRIDIUM-ALUMINA; OXYGEN MIXTURES; THIN-FILMS; SPILLOVER; PALLADIUM; METAL; HYDROISOMERIZATION AB The rate of catalytic carbon nanofiber formation from a mixture of ethylene and hydrogen at 550 degrees C was found to be dramatically faster over physical mixtures of palladium and cobalt micron scale particles than over either metal independently. The rate correlated with the metal fraction nearly identically for either Pd or Co rich mixtures. The highest rate increase over either pure metal was observed for a 1:1 mass ratio (similar to 150 times faster), although significant increases were found even at metal ratios of 11:1 (similar to 45 times faster). There was no direct evidence of extensive alloy formation from the mixed powders which suggests that a synergistic mechanism driven by proximity only may be responsible for the observed rate increases. It is thought a species (e.g. hydrogen atoms) formed at one metal (e.g. palladium) diffuses to the other where it accelerates carbon deposition by affecting the other catalyst material directly, or by generating favorable radical species. Kinetic synergism was also observed for Pd-Co alloys, although it was clearly less dramatic than that found for mixtures. Still, the fundamental similarity in behavior suggests that on the alloy surface two site types exist: one primarily Pd and one primarily Co. (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 Lab, 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 28 TC 4 Z9 4 U1 1 U2 13 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 APR PY 2011 VL 49 IS 4 BP 1058 EP 1066 DI 10.1016/j.carbon.2010.10.054 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 717NR UT WOS:000287055200002 ER PT J AU Tran, C Kafle, J Yang, XQ Qu, DY AF Tran, Chris Kafle, Janak Yang, Xiao-Qing Qu, Deyang TI Increased discharge capacity of a Li-air activated carbon cathode produced by preventing carbon surface passivation SO CARBON LA English DT Article ID RECHARGEABLE LITHIUM BATTERIES; ELECTRODE; CATALYST AB A significant discharge capacity increase (larger than 3 times) for the gas-diffusion-electrode (GDE) used in Li-air cells was demonstrated through modification of the carbon surface with long-chain hydrophobic molecules. The capacity loss of the Li-air activated carbon cathode was found to be caused by the formation of undesired surface passivation. The mechanism of such passivation was identified as the formation of dense Li oxide films directly on the surface of the carbon during the oxygen reduction reaction. Such dense layers of Li oxide are here identified as the root cause of the undesired passivation, which blocks electrochemical reactions, increases the impedance and drops the discharge voltage rapidly. This investigation reveals that the capacity for the gas-diffusion-electrode can be substantially increased, if the activated carbon is modified by attaching long-chain hydrophobic molecules onto the surface. The carbon surface modification significantly delays the formation of the dense Li oxide layers. Therefore, the discharge capacity for the GDE is substantially increased. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Tran, Chris; Kafle, Janak; Qu, Deyang] Univ Massachusetts Boston, Dept Chem, Boston, MA 02125 USA. [Yang, Xiao-Qing] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Qu, DY (reprint author), Univ Massachusetts Boston, Dept Chem, Boston, MA 02125 USA. EM deyang.qu@umb.edu FU US Department of Energy [DEAC02-98CH10886] FX The work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, under the program "Hybrid and Electric Systems," of the US Department of Energy under Contract Number DEAC02-98CH10886. The financial support is gratefully acknowledged. NR 12 TC 47 Z9 48 U1 2 U2 39 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 APR PY 2011 VL 49 IS 4 BP 1266 EP 1271 DI 10.1016/j.carbon.2010.11.045 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 717NR UT WOS:000287055200027 ER PT J AU Lin, HS Ma, XS Feng, WC Samatova, NF AF Lin, Heshan Ma, Xiaosong Feng, Wuchun Samatova, Nagiza F. TI Coordinating Computation and I/O in Massively Parallel Sequence Search SO IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS LA English DT Article DE Scheduling; parallel I/O; bioinformatics; parallel genomic sequence search; BLAST ID BLAST; CLUSTERS AB With the explosive growth of genomic information, the searching of sequence databases has emerged as one of the most computation and data-intensive scientific applications. Our previous studies suggested that parallel genomic sequence-search possesses highly irregular computation and I/O patterns. Effectively addressing these runtime irregularities is thus the key to designing scalable sequence-search tools on massively parallel computers. While the computation scheduling for irregular scientific applications and the optimization of noncontiguous file accesses have been well-studied independently, little attention has been paid to the interplay between the two. In this paper, we systematically investigate the computation and I/O scheduling for data-intensive, irregular scientific applications within the context of genomic sequence search. Our study reveals that the lack of coordination between computation scheduling and I/O optimization could result in severe performance issues. We then propose an integrated scheduling approach that effectively improves sequence-search throughput by gracefully coordinating the dynamic load balancing of computation and high-performance noncontiguous I/O. C1 [Lin, Heshan; Feng, Wuchun] Virginia Tech, Dept Comp Sci, Blacksburg, VA 24060 USA. [Ma, Xiaosong; Samatova, Nagiza F.] N Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. [Ma, Xiaosong; Samatova, Nagiza F.] Oak Ridge Natl Lab, Comp Sci & Math Div, Raleigh, NC 27695 USA. RP Lin, HS (reprint author), Virginia Tech, Dept Comp Sci, 2202 Kraft Dr, Blacksburg, VA 24060 USA. EM hlin2@cs.vt.edu; ma@csc.ncsu.edu; feng@cs.vt.edu; samatovan@ornl.gov FU US Department of Energy (DOE) [DE-FG02-05ER25685]; US National Science Foundation (NSF) [CNS-0546301]; NC State University and Oak Ridge National Laboratory; Scientific Data Management Center under DOE; Los Alamos National Laboratory [W-7405-ENG-36]; Office of Science of the DOE [DE-AC02-05CH11231] FX This work is in part supported by the following funding sources: 1) US Department of Energy(DOE) ECPI Award (DE-FG02-05ER25685); 2) US National Science Foundation (NSF) CAREER Award (CNS-0546301); 3) Dr. Xiaosong Ma's joint appointment between NC State University and Oak Ridge National Laboratory; 4) Scientific Data Management Center (https://sdm.lbl.gov/sdmcenter/) under the DOE's Scientific Discovery through Advanced Computing Program; and 5) Los Alamos National Laboratory contract W-7405-ENG-36. We are grateful to the Virginia Tech Advanced Research Computing, Ohio Supercomputing Center, and the High-Performance Computing Center at North Carolina State University for granting us access to their supercomputing resources. This research also used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the DOE under Contract No. DE-AC02-05CH11231. The authors thank Jeremy Archuleta and Tom Scogland for their constructive feedback on the paper. NR 53 TC 14 Z9 14 U1 0 U2 4 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 1045-9219 J9 IEEE T PARALL DISTR JI IEEE Trans. Parallel Distrib. Syst. PD APR PY 2011 VL 22 IS 4 BP 529 EP 543 DI 10.1109/TPDS.2010.101 PG 15 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA 724MH UT WOS:000287580000001 ER PT J AU Nittala, K Brennecka, GL Tuttle, BA Jones, JL AF Nittala, Krishna Brennecka, Geoff L. Tuttle, Bruce A. Jones, Jacob L. TI Phase evolution in solution deposited Pb-deficient PLZT thin films SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID LEAD-ZIRCONATE-TITANATE; CHEMICAL SOLUTION DEPOSITION; TIME TEXTURE TRANSITION; X-RAY-DIFFRACTION; GEL; CRYSTALLIZATION; FLUORITE; TRANSFORMATIONS; CAPACITORS; KINETICS AB Initial crystallization of Pb-deficient, lanthanum modified lead zirconate titanate (PLZT) layers followed by post-crystallization phase conversion can be used to obtain high quality PLZT thin films. However, phase evolution in Pb-deficient PLZT thin films is not well understood. To characterize phase evolution in these films, we developed a new in situ, high-temperature X-ray diffraction (XRD) measurement approach for slow heating rates. The well-characterized Pb-excess PLZT composition was used for comparison and to validate the new XRD setup described herein. During crystallization of Pb-deficient thin films, a Pb-rich/La-poor perovskite phase and Pb-poor/La-rich fluorite phase were observed to form simultaneously. The fluorite phase was observed to partially transform into a secondary perovskite phase at higher temperatures. The results obtained are discussed in view of the current understanding of phase evolution in these materials. The details of the new in situ XRD technique are also presented. C1 [Nittala, Krishna; Jones, Jacob L.] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. [Brennecka, Geoff L.; Tuttle, Bruce A.] Sandia Natl Labs, Mat Sci & Engn Ctr, Albuquerque, NM 87185 USA. RP Jones, JL (reprint author), Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. EM jjones@mse.ufl.edu RI Nittala, Krishna/F-5332-2012; Jones, Jacob/A-8361-2008; Brennecka, Geoff/J-9367-2012 OI Brennecka, Geoff/0000-0002-4476-7655 FU National Institute for NanoEngineering (NINE); Laboratory Directed Research and Development program at Sandia National Laboratories; U.S. Department of Energy's National Nuclear Security Administration [AC04-94AL85000]; NSF [DMR-0746902] FX This work was supported by the National Institute for NanoEngineering (NINE) and the Laboratory Directed Research and Development program at Sandia National Laboratories. Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Company, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. JLJ acknowledges NSF for funding through award number DMR-0746902. The authors would also like to thank Dr. Valentin Craciun and MAIC at University of Florida for access to the Philips X'Pert XRD and Pat Mahoney at Sandia National Laboratories for help in preparation of samples. NR 30 TC 5 Z9 5 U1 0 U2 14 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD APR PY 2011 VL 46 IS 7 BP 2148 EP 2154 DI 10.1007/s10853-010-5051-x PG 7 WC Materials Science, Multidisciplinary SC Materials Science GA 712AB UT WOS:000286633000022 ER PT J AU Jagannadham, K Lance, MJ Butler, JE AF Jagannadham, K. Lance, M. J. Butler, J. E. TI Laser annealing of neutron irradiated boron-10 isotope doped diamond SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID RAMAN-SCATTERING; INFRARED-ABSORPTION; SYNTHETIC DIAMOND; ELECTRICAL-CONDUCTIVITY; LATTICE ABSORPTION; ION-IMPLANTATION; HEAT-TREATMENT; GRAPHITE; CARBON; FILMS AB (10)B isotope doped p-type diamond epilayer grown by chemical vapor deposition on (110) oriented type IIa diamond single crystal substrate was subjected to neutron transmutation at a fluence of 2.4 x 10(20) thermal and 2.4 x 10(20) fast neutrons. After neutron irradiation, the epilayer and the diamond substrate were laser annealed using Nd-YAG laser irradiation with wave length, 266 nm and energy, 150 mJ per pulse. The neutron irradiated diamond epilayer and the substrate were characterized before and after laser annealing using different techniques. The characterization techniques include optical microscopy, secondary ion mass spectrometry, X-ray diffraction, Raman, photoluminescence and Fourier Transform Infrared spectroscopy, and electrical sheet conductance measurement. The results indicate that the structure of the irradiation induced amorphous epilayer changes to disordered graphite upon laser annealing. The irradiated substrate retains the (110) crystalline structure with neutron irradiation induced defects. C1 [Jagannadham, K.] N Carolina State Univ, Raleigh, NC 27695 USA. [Lance, M. J.] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA. [Butler, J. E.] USN, Res Lab, Washington, DC 20375 USA. RP Jagannadham, K (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA. EM jag_kasichainula@ncsu.edu RI Butler, James/B-7965-2008; Lance, Michael/I-8417-2016 OI Butler, James/0000-0002-4794-7176; Lance, Michael/0000-0001-5167-5452 FU Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, ORNL; UT-Battelle, LLC [DE-AC05-000R22725]; NRL/ONR FX This research is sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High Temperature Materials Laboratory User Program, ORNL, managed by UT-Battelle, LLC, for the U. S. Department of Energy under contract number DE-AC05-000R22725. SIMS calibration standards were prepared by ion implantation of known concentrations of B and Li. Ion implantation was provided by the Surface Modification and Characterization Research Center at ORNL. JEB acknowledges the support from NRL/ONR. The authors are thankful to Dr. Mark Walters for help in the use of facilities at SMIF, Duke University. The authors are also thankful to Mr. Joseph Dorsheimer of Thermo Scientific for carrying out the Raman spectroscopy imaging of the diamond epilayer surface. NR 45 TC 2 Z9 2 U1 1 U2 15 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD APR PY 2011 VL 46 IS 8 BP 2518 EP 2528 DI 10.1007/s10853-010-5102-3 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA 712AD UT WOS:000286633300015 ER PT J AU Wu, WY Miller, KD Coolbaugh, M Wood, DW AF Wu, Wan-Yi Miller, Keith D. Coolbaugh, Michael Wood, David W. TI Intein-mediated one-step purification of Escherichia coli secreted human antibody fragments SO PROTEIN EXPRESSION AND PURIFICATION LA English DT Article DE Intein; Chitin-binding domain; Escherichia coli secretion; Recombinant protein purification; Self-cleaving affinity tag; Disulfide bonds ID PROTEIN SPLICING ELEMENT; HIGH-LEVEL EXPRESSION; RECOMBINANT PROTEINS; AFFINITY-CHROMATOGRAPHY; BACTERIAL PROTEIN; BETA-LACTAMASES; GROWTH-FACTOR; FUSION; TAGS; DNAK AB In this work, we apply self-cleaving affinity tag technology to several target proteins secreted into the Escherichia coli periplasm, including two with disulfide bonds. The target proteins were genetically fused to a self-cleaving chitin-binding domain-intein tag for purification via a chitin-agarose affinity resin. By attaching the intein-tagged fusion genes to the PelB secretion leader sequence, the tagged target proteins were secreted to the periplasmic space and could be recovered in active form by simple osmotic shock. After chitin-affinity purification, the target proteins were released from the chitin-binding domain tag via intein self-cleaving. This was induced by a small change in pH from 8.5 to 6.5 at room temperature, allowing direct elution of the cleaved target protein from the chitin affinity resin. The target proteins include the E. coli maltose-binding protein and beta-lactamase enzyme, as well as two human antibody fragments that contain disulfide bonds. In all cases, the target proteins were purified with good activity and yield, without the need for refolding. Overall, this work demonstrates the compatibility of the Delta I-CM intein with the PelB secretion system in E. coli, greatly expanding its potential to more complex proteins. (C) 2010 Elsevier Inc. All rights reserved. C1 [Coolbaugh, Michael; Wood, David W.] Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA. [Wu, Wan-Yi] Princeton Univ, Dept Chem & Biol Engn, Princeton, NJ 08544 USA. [Miller, Keith D.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Wood, DW (reprint author), Ohio State Univ, Dept Chem & Biomol Engn, 140 W 19th Ave, Columbus, OH 43210 USA. EM wood.750@osu.edu RI Wood, David/B-2992-2012 FU National Science Foundation [BES-0348220]; Army Research Office [W911NF-04-1-0056] FX The authors would like to acknowledge BAC B.V. for kindly providing the gene for human light chain kappa and Capture Select Fab Kappa resins for the experiments in this work. This work was partially supported by a National Science Foundation CAREER Award BES-0348220 and Army Research Office Grant W911NF-04-1-0056. NR 39 TC 10 Z9 11 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 1046-5928 J9 PROTEIN EXPRES PURIF JI Protein Expr. Purif. PD APR PY 2011 VL 76 IS 2 BP 221 EP 228 DI 10.1016/j.pep.2010.12.004 PG 8 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 716ID UT WOS:000286961400010 PM 21167943 ER PT J AU Elias, G Mincher, BJ Mezyk, SP Muller, J Martin, LR AF Elias, Gracy Mincher, Bruce J. Mezyk, Stephen P. Muller, Jim Martin, Leigh R. TI Toluene nitration in irradiated nitric acid and nitrite solutions SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article DE Toluene radiolysis; HPLC; UV spectra; LC-MS; Free-radicals; Electrophilic substitution ID AQUEOUS-SOLUTIONS; PULSE-RADIOLYSIS; RATE CONSTANTS; GAS-PHASE; ENVIRONMENTAL CHEMISTRY; HYDROXYL RADICALS; NO3; NAPHTHALENE; PRODUCTS; KINETICS AB The kinetics, mechanisms, and stable products produced for the nitration of aryl alkyl mild ortho-para director toluene in irradiated nitric acid and neutral nitrite solutions were investigated using gamma and pulse radiolysis. Electron pulse radiolysis was used to determine the bimolecular rate constants for the reaction of toluene with different transient species produced by irradiation. HPLC with UV detection, GC-MS and LC-MS, were used to assess the stable reaction products. Free-radical based nitration reaction products were found in irradiated acidic and neutral media. In 6.0 M HNO(3), ring substitution, side chain substitution, and oxidation, produced different nitrated toluene products. For ring substitution, nitrogen oxide radicals were added mainly to cyclohexadienyl radicals, whereas for side chain substitution, these radicals were added to the carbon-centered benzyl radical produced by H-atom abstraction. In neutral nitrite solutions, radiolytically-induced ring nitration products approached a statistically random distribution, suggesting a direct free-radical reaction involving addition of the (center dot)NO(2) radical. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Elias, Gracy] Idaho Natl Lab, Chem & Radiat Measurement Dept, Idaho Falls, ID 83415 USA. [Mincher, Bruce J.; Martin, Leigh R.] Idaho Natl Lab, Aqueous Separat & Radiochem Dept, Idaho Falls, ID 83415 USA. [Mezyk, Stephen P.] Calif State Univ Long Beach, Dept Chem & Biochem, Long Beach, CA 90840 USA. [Muller, Jim] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA. RP Elias, G (reprint author), Idaho Natl Lab, Chem & Radiat Measurement Dept, POB 1625, Idaho Falls, ID 83415 USA. EM gracy.elias@inl.gov RI Martin, Leigh/P-3167-2016; Mincher, Bruce/C-7758-2017 OI Martin, Leigh/0000-0001-7241-7110; FU U.S. Department of Energy (DOE), Office of Nuclear Energy, Science and Technology [DEAC07-99ID13727]; Office of Basic Energy Sciences, U.S. Department of Energy FX This research was funded by the INL-Laboratory Directed Research and Development Program, sponsored by the U.S. Department of Energy (DOE), Office of Nuclear Energy, Science and Technology under the DOE-Idaho Operations Office contract DEAC07-99ID13727. Kinetics experiments were performed at the Radiation Laboratory, University of Notre Dame, which is supported by the Office of Basic Energy Sciences, U.S. Department of Energy. NR 27 TC 3 Z9 3 U1 2 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0969-806X J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PD APR PY 2011 VL 80 IS 4 BP 554 EP 560 DI 10.1016/j.radphyschem.2010.12.005 PG 7 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA 725DE UT WOS:000287624600005 ER PT J AU Bellou, A Overman, CT Zbib, HM Bahr, DF Misra, A AF Bellou, A. Overman, C. T. Zbib, H. M. Bahr, D. F. Misra, A. TI Strength and strain hardening behavior of Cu-based bilayers and trilayers SO SCRIPTA MATERIALIA LA English DT Article DE Nanoindentation; Multilayers; Nanocomposite; Hardness; Strain hardening ID NANOSCALE METALLIC MULTILAYERS; THIN-FILMS; INDENTATION; COMPOSITES; DEFORMATION; MECHANISMS; SCALE; AG AB Strain hardening in metallic multilayers is shown experimentally to be greater in trilayer films of Cu-Ni-Nb than bilayer films of Cu-Ni or Cu-Nb using both direct measurements of flow strength at different effective strains and an analysis of the out-of-plane deformation around nanoindentation impressions. The mechanism that accounts for increased strain hardening in the trilayer is a proposed super-threader dislocation and cross-slip mechanism, modeled using three-dimensional dislocation dynamics simulations. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. C1 [Bellou, A.; Overman, C. T.; Zbib, H. M.; Bahr, D. F.] Sch Mech & Mat Engn, Pullman, WA 99164 USA. [Misra, A.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Bahr, DF (reprint author), Sch Mech & Mat Engn, POB 642920, Pullman, WA 99164 USA. EM dbahr@wsu.edu RI Bahr, David/A-6521-2012; Misra, Amit/H-1087-2012 OI Bahr, David/0000-0003-2893-967X; FU US Department of Energy [DE-FG02-07ER4635] FX This work was supported by the US Department of Energy under Grant No. DE-FG02-07ER4635. The authors acknowledge access, through an approved user project, to the Center for Integrated Nanotechnologies (CINT), a DOE, Office of Basic Energy Sciences user facility. The assistance of J. Kevin Baldwin at CINT in sample synthesis is acknowledged. NR 22 TC 20 Z9 20 U1 1 U2 26 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6462 J9 SCRIPTA MATER JI Scr. Mater. PD APR PY 2011 VL 64 IS 7 BP 641 EP 644 DI 10.1016/j.scriptamat.2010.12.009 PG 4 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 720HS UT WOS:000287272100012 ER PT J AU Wang, Y Chen, KS Mishler, J Cho, SC Adroher, XC AF Wang, Yun Chen, Ken S. Mishler, Jeffrey Cho, Sung Chan Adroher, Xavier Cordobes TI A review of polymer electrolyte membrane fuel cells: Technology, applications, and needs on fundamental research SO APPLIED ENERGY LA English DT Review DE Polymer electrolyte fuel cells; Technology; Application; Fundamental; Review ID PROTON-EXCHANGE MEMBRANE; GAS-DIFFUSION LAYERS; LIQUID WATER TRANSPORT; DIRECT NUMERICAL-SIMULATION; LATTICE BOLTZMANN SIMULATIONS; OXYGEN REDUCTION REACTION; METALLIC BIPOLAR PLATES; LOW-HUMIDITY OPERATION; 316L STAINLESS-STEEL; FLOW-FIELD DESIGNS AB Polymer electrolyte membrane (PEM) fuel cells, which convert the chemical energy stored in hydrogen fuel directly and efficiently to electrical energy with water as the only byproduct, have the potential to reduce our energy use, pollutant emissions, and dependence on fossil fuels. Great deal of efforts has been made in the past, particularly during the last couple of decades or so, to advance the PEM fuel cell technology and fundamental research. Factors such as durability and cost still remain as the major barriers to fuel cell commercialization. In the past two years, more than 35% cost reduction has been achieved in fuel cell fabrication, the current status of $61/kW (2009) for transportation fuel cell is still over 50% higher than the target of the US Department of Energy (DOE), i.e. $30/kW by 2015, in order to compete with the conventional technology of internal-combustion engines. In addition, a lifetime of similar to 2500 h (for transportation PEM fuel cells) was achieved in 2009, yet still needs to be doubled to meet the DOE's target, i.e. 5000 h. Breakthroughs are urgently needed to overcome these barriers. In this regard, fundamental studies play an important and indeed critical role. Issues such as water and heat management, and new material development remain the focus of fuel-cell performance improvement and cost reduction. Previous reviews mostly focus on one aspect, either a specific fuel cell application or a particular area of fuel cell research. The objective of this review is three folds: (1) to present the latest status of PEM fuel cell technology development and applications in the transportation, stationary, and portable/micro power generation sectors through an overview of the state-of-the-art and most recent technical progress; (2) to describe the need for fundamental research in this field and fill the gap of addressing the role of fundamental research in fuel cell technology; and (3) to outline major challenges in fuel cell technology development and the needs for fundamental research for the near future and prior to fuel cell commercialization. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Wang, Yun; Mishler, Jeffrey; Cho, Sung Chan; Adroher, Xavier Cordobes] Univ Calif Irvine, RERL, Irvine, CA 92697 USA. [Wang, Yun; Mishler, Jeffrey; Cho, Sung Chan; Adroher, Xavier Cordobes] Univ Calif Irvine, Natl Fuel Cell Res Ctr, Dept Mech & Aerosp Engn, Irvine, CA 92697 USA. [Chen, Ken S.] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA. RP Wang, Y (reprint author), Univ Calif Irvine, RERL, Irvine, CA 92697 USA. EM yunw@uci.edu NR 288 TC 824 Z9 837 U1 142 U2 913 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0306-2619 J9 APPL ENERG JI Appl. Energy PD APR PY 2011 VL 88 IS 4 BP 981 EP 1007 DI 10.1016/j.apenergy.2010.09.030 PG 27 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 713AL UT WOS:000286707300001 ER PT J AU Mobini, M Sowlati, T Sokhansanj, S AF Mobini, Mahdi Sowlati, Taraneh Sokhansanj, Shahab TI Forest biomass supply logistics for a power plant using the discrete-event simulation approach SO APPLIED ENERGY LA English DT Article DE Forest biomass; Simulation; IBSAL; Bioenergy; Biofuel; Supply chain ID OPTIMAL LOCATION; COSTS; ECONOMICS; RESIDUES; SYSTEMS AB This study investigates the logistics of supplying forest biomass to a potential power plant. Due to the complexities in such a supply logistics system, a simulation model based on the framework of Integrated Biomass Supply Analysis and Logistics (IBSAL) is developed in this study to evaluate the cost of delivered forest biomass, the equilibrium moisture content, and carbon emissions from the logistics operations. The model is applied to a proposed case of 300 MW power plant in Quesnel, BC, Canada. The results show that the biomass demand of the power plant would not be met every year. The weighted average cost of delivered biomass to the gate of the power plant is about C$ 90 per dry tonne. Estimates of equilibrium moisture content of delivered biomass and CO(2) emissions resulted from the processes are also provided. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Mobini, Mahdi; Sowlati, Taraneh] Univ British Columbia, Dept Wood Sci, Ind Engn Grp, Vancouver, BC V6T 1Z4, Canada. [Sokhansanj, Shahab] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada. [Sokhansanj, Shahab] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Sowlati, T (reprint author), Univ British Columbia, Dept Wood Sci, Ind Engn Grp, 2931-2424 Main Mall, Vancouver, BC V6T 1Z4, Canada. EM taraneh.sowlati@ubc.ca FU British Columbia Ministry of Forest and Range; Natural Sciences and Engineering Research Council of Canada; Wood Pellet Association of Canada FX This research is supported in part by the British Columbia Ministry of Forest and Range, Natural Sciences and Engineering Research Council of Canada, and Wood Pellet Association of Canada. The authors acknowledge the generosity of Mr. Jack MacDonald and Mr. Tony Sauder of the FPInnovations (FERIC Division) for sharing forest harvest data and Mr. Don Gosnell for providing technical advice. NR 31 TC 35 Z9 35 U1 4 U2 30 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0306-2619 J9 APPL ENERG JI Appl. Energy PD APR PY 2011 VL 88 IS 4 BP 1241 EP 1250 DI 10.1016/j.apenergy.2010.10.016 PG 10 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 713AL UT WOS:000286707300026 ER PT J AU Richter, A Sadowski, J AF Richter, Asta Sadowski, Jerzy TI Nanoscience and nanotechnology SO CENTRAL EUROPEAN JOURNAL OF PHYSICS LA English DT Editorial Material C1 [Richter, Asta] Tech Univ Appl Sci, Dept Engn, D-15745 Wildau, Germany. [Sadowski, Jerzy] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Richter, A (reprint author), Tech Univ Appl Sci, Dept Engn, Bahnhofstr 1, D-15745 Wildau, Germany. EM asta.richter@th-wildau.de; sadowski@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 3 PU VERSITA PI WARSAW PA SOLIPSKA 14A-1, 02-482 WARSAW, POLAND SN 1895-1082 J9 CENT EUR J PHYS JI Cent. Eur. J. Phys. PD APR PY 2011 VL 9 IS 2 BP 263 EP 264 DI 10.2478/s11534-011-0014-7 PG 2 WC Physics, Multidisciplinary SC Physics GA 723LK UT WOS:000287507800001 ER PT J AU Figueiredo, E Figueiras, J Park, G Farrar, CR Worden, K AF Figueiredo, Eloi Figueiras, Joaquim Park, Gyuhae Farrar, Charles R. Worden, Keith TI Influence of the Autoregressive Model Order on Damage Detection SO COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING LA English DT Article ID IDENTIFICATION; PARAMETERS AB An important step for using time-series autoregressive (AR) models for structural health monitoring is the estimation of the appropriate model order. To obtain an optimal AR model order for such processes, this article presents and discusses four techniques based on Akaike information criterion, partial autocorrelation function, root mean squared error, and singular value decomposition. A unique contribution of this work is to provide a comparative study with three different AR models that is carried out to understand the influence of the model order on the damage detection process in the presence of simulated operational and environmental variability. A three-story base-excited frame structure was used as a test bed in a laboratory setting, and data sets were measured for several structural state conditions. Damage was introduced by a bumper mechanism that induces a repetitive impact-type nonlinearity. The operational and environmental effects were simulated by adding mass and by changing the stiffness properties of the columns. It was found that these four techniques do not converge to a unique solution, rather all require somewhat qualitative interpretation to define the optimal model order. The comparative study carried out on these data sets shows that the AR model order range defined by the four techniques provides robust damage detection in the presence of simulated operational and environmental variability. C1 [Park, Gyuhae; Farrar, Charles R.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA. [Figueiredo, Eloi; Figueiras, Joaquim] Univ Porto, Dept Civil Engn, Fac Engn, P-4100 Oporto, Portugal. [Worden, Keith] Univ Sheffield, Dept Mech Engn, Sheffield, S Yorkshire, England. RP Farrar, CR (reprint author), Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA. EM farrar@lanl.gov OI Figueiras, Joaquim/0000-0002-3009-6803; Figueiredo, Eloi/0000-0002-9168-6903; Farrar, Charles/0000-0001-6533-6996 NR 26 TC 35 Z9 35 U1 4 U2 15 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1093-9687 J9 COMPUT-AIDED CIV INF JI Comput.-Aided Civil Infrastruct. Eng. PD APR PY 2011 VL 26 IS 3 BP 225 EP 238 DI 10.1111/j.1467-8667.2010.00685.x PG 14 WC Computer Science, Interdisciplinary Applications; Construction & Building Technology; Engineering, Civil; Transportation Science & Technology SC Computer Science; Construction & Building Technology; Engineering; Transportation GA 721NS UT WOS:000287362200006 ER PT J AU Dan, C Grygoryev, D Sandfort, K Connolly, M Cross, B Lasarev, M Kronenberg, A Turker, MS AF Dan, Cristian Grygoryev, Dmytro Sandfort, Kelly Connolly, Marissa Cross, Brittany Lasarev, Michael Kronenberg, Amy Turker, Mitchell S. TI Marked Aneuploidy and Loss of Multiple Chromosomes Are Common in Autosomal Mutants Isolated from Normal Mouse Kidney Epithelium SO GENES CHROMOSOMES & CANCER LA English DT Article ID SOLID TISSUES; CELLS; INSTABILITY; CANCER; ABERRATIONS; RADIATION; MUTATION; MICE AB Marked aneuploidy and loss of multiple chromosomes are hallmarks of cancer, but whether these events are only present in malignant cells is not known. In prior work, we showed that approximately half of spontaneous autosomal mutants isolated directly from normal kidney epithelium arose from loss of a marker chromosome 8 containing the wild type Aprt gene. Chromosome loss was detected by loss of heterozygosity (LOH) for all chromosome 8 polymorphic loci examined. To determine whether loss of chromosome 8 reflected a larger mitotic event, LOH was examined for polymorphic loci on 11 nonselected chromosomes in Aprt mutants that lost the selected chromosome 8 homologue. LOH events were detected for one or more nonselected chromosomes in 38% of these mutants. The additional LOH events also reflected apparent chromosome loss based on the molecular analysis. Metaphase spreads from mutants that lost chromosome 8 were markedly aneuploid, and chromosome painting revealed reduced levels for any chromosome shown to be lost with the LOH analysis. In contrast, LOH on nonselected chromosomes was infrequent in Aprt mutants exhibiting intragenic events or mitotic recombination for chromosome 8, and marked aneuploidy was absent. These observations suggest that the mechanism leading to chromosome loss in somatic mammalian cells is often not a simple nondisjunction event and instead could result from a single catastrophic event. They also suggest that cells with characteristics of malignancy are present in normal appearing tissue. (C) 2011 Wiley-Liss, Inc. C1 [Dan, Cristian; Grygoryev, Dmytro; Sandfort, Kelly; Connolly, Marissa; Cross, Brittany; Lasarev, Michael; Turker, Mitchell S.] Oregon Hlth & Sci Univ, Ctr Res Occupat & Environm Toxicol, Portland, OR 97239 USA. [Kronenberg, Amy] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. [Turker, Mitchell S.] Oregon Hlth & Sci Univ, Dept Mol & Med Genet, Portland, OR 97239 USA. RP Turker, MS (reprint author), Oregon Hlth & Sci Univ, Ctr Res Occupat & Environm Toxicol, L606,3181 SW Sam Jackson Pk Rd, Portland, OR 97239 USA. EM turkerm@ohsu.edu OI Lasarev, Michael R/0000-0002-1896-2705 FU NIH [DK074742]; NASA [T-403X, NNJ0HC72I, NNX10AC12G]; CROET FX Supported by: NIH, Grant number: DK074742; NASA, Grant numbers: T-403X, NNJ0HC72I, and NNX10AC12G; CROET. NR 22 TC 4 Z9 4 U1 1 U2 1 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1045-2257 J9 GENE CHROMOSOME CANC JI Gene Chromosomes Cancer PD APR PY 2011 VL 50 IS 4 BP 239 EP 249 DI 10.1002/gcc.20849 PG 11 WC Oncology; Genetics & Heredity SC Oncology; Genetics & Heredity GA 720DS UT WOS:000287261000004 PM 21254298 ER PT J AU Jamiyansharav, K Ojima, D Pielke, RA Parton, W Morgan, J Beltran-Przekurat, A LeCain, D Smith, D AF Jamiyansharav, K. Ojima, D. Pielke, R. A. Parton, W. Morgan, J. Beltran-Przekurat, A. LeCain, D. Smith, D. TI Seasonal and interannual variability in surface energy partitioning and vegetation cover with grazing at shortgrass steppe SO JOURNAL OF ARID ENVIRONMENTS LA English DT Article DE Energy fluxes; Grazing; Shortgrass steppe; Vegetation ID SEMIARID GRASSLAND; CARBON EXCHANGE; SOIL; EVAPOTRANSPIRATION; COLORADO; PRAIRIE; CO2; PRECIPITATION; TEMPERATURES; ECOSYSTEM AB We evaluated shortgrass steppe energy budgets based on the Bowen Ratio Energy Balance method for three different grazing intensity treatments at the Central Plains Experimental Range Long-Term Ecological Research (CPER-LTER) site. We tested the correlations between aboveground biomass and surface energy fluxes for three different precipitation years based on continuously measured 20 min interval data. Grazing has a potential impact on energy partitioning under conditions of higher water availability, but not during dry conditions. Our study confirms that precipitation, not grazing treatment, explains the majority of variation in aboveground biomass at the CPER-LTER site. In addition, we are suggesting effective temperature, not air temperature, as a superior metric to evaluate surface heat change. Effective temperature takes into account humidity as well as air temperature. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Jamiyansharav, K.; Ojima, D.; Parton, W.] CSU, NREL, Grad Degree Program Ecol, Ft Collins, CO 80523 USA. [Pielke, R. A.; Beltran-Przekurat, A.] CU Boulder, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA. [Pielke, R. A.; Beltran-Przekurat, A.] CU Boulder, CIRES, Boulder, CO 80309 USA. [Morgan, J.; LeCain, D.; Smith, D.] USDA ARS, Ft Collins, CO 80523 USA. RP Jamiyansharav, K (reprint author), CSU, NREL, Grad Degree Program Ecol, 1231 East Dr, Ft Collins, CO 80523 USA. EM jkhishig@warnercnr.colostate.edu RI Ojima, Dennis/C-5272-2016 FU National Science Foundation [DEB 0217631] FX The first author sincerely thanks all of the co-authors who contributed and supported this energy budget study at the SGS-LTER site. Special thanks to Lara Prihodko and Robin Kelly for data processing and Robin Kelly, Dallas Staley, and Daniel Milchunas for helpful editing of the manuscript. This work was supported in part by the Shortgrass Steppe Long-Term Ecological Research project by funds from the National Science Foundation award DEB 0217631. NR 34 TC 6 Z9 6 U1 1 U2 13 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0140-1963 J9 J ARID ENVIRON JI J. Arid. Environ. PD APR PY 2011 VL 75 IS 4 BP 360 EP 370 DI 10.1016/j.jaridenv.2010.11.008 PG 11 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA 722WX UT WOS:000287467100006 ER PT J AU Hopkins, PE Phinney, LM Serrano, JR AF Hopkins, Patrick E. Phinney, Leslie M. Serrano, Justin R. TI Re-examining Electron-Fermi Relaxation in Gold Films With a Nonlinear Thermoreflectance Model SO JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME LA English DT Article DE Fermi relaxation; electron-electron scattering; thermoreflectance ID PHONON ENERGY RELAXATION; NONEQUILIBRIUM ELECTRON; NOBLE-METALS; THERMALIZATION; DYNAMICS; LATTICE; COPPER; SIZE; AU AB In this work, we examine Fermi relaxation in 20 nm Au films with pump-probe themoreflectance using a thin film, intraband thermoreflectance model. Our results indicate that the Fermi relaxation of a perturbed electron system occurs approximately 1.10 +/- 0.05 ps after absorption of a 785 nm, 185 fs laser pulse. This is in agreement with reported values from electron emission experiments but is higher than the Fermi relaxation time determined from previous thermoreflectance measurements. This discrepancy arises due to thermoreflectance modeling and elucidates the importance of the use of a proper thermoreflectance model for thermophysical property determination in pump-probe experiments. [DOI: 10.1115/1.4002778] C1 [Hopkins, Patrick E.; Phinney, Leslie M.; Serrano, Justin R.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Hopkins, PE (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM pehopki@sandia.gov FU LDRD Program Office; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX P.E.H. is greatly appreciative for funding from the LDRD Program Office through the Harry S. Truman Fellowship Program. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility; the authors would like to thank John Sullivan for assistance regarding work at the Center for Integrated Nanotechnologies. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed-Martin Corporation, for the United States Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 31 TC 6 Z9 6 U1 1 U2 10 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0022-1481 J9 J HEAT TRANS-T ASME JI J. Heat Transf.-Trans. ASME PD APR PY 2011 VL 133 IS 4 AR 044505 DI 10.1115/1.4002778 PG 4 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA 709IL UT WOS:000286431600021 ER PT J AU Kibanova, D Trejo, M Destaillats, H Cervini-Silva, J AF Kibanova, Daria Trejo, Martin Destaillats, Hugo Cervini-Silva, Javiera TI Photocatalytic activity of kaolinite SO CATALYSIS COMMUNICATIONS LA English DT Article DE Photocatalysis; Photolysis; Kaolinite; Degradation; Toluene; Methylene blue ID METHYLENE-BLUE; CLAY-MINERALS; ADSORPTION; PHOTODEGRADATION; SOIL; POLLUTANTS; SURFACES; AIR; NANOCOMPOSITES; DECOMPOSITION AB The photocatalytic activity of commercial kaolinite (KGa-1b) was evaluated for the degradation of methylene blue (MB) in aqueous suspension and of toluene in the gas phase. An enhanced photolysis of MB in the presence of kaolinite was detected, albeit at a slower rate than in the presence of the same mass of commercial TiO2 P25. Toluene removal under realistic ambient concentrations was catalyzed by both KGa-1b and P25; however, on a TiO2 content normalized basis, the clay mineral showed a higher photocatalytic rate. In the latter case, toluene degradation was found to be coupled to the presence of kaolinite surfaces, and not proportional to TiO2 content. (c) 2010 Elsevier B.V. All rights reserved. C1 [Kibanova, Daria] Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico. [Kibanova, Daria; Cervini-Silva, Javiera] Univ Autonoma Metropolitana, Dept Proc & Tecnol, Unidad Cuajimalpa, Mexico City 01120, DF, Mexico. [Trejo, Martin] Inst Politecn Nacl, ESIQIE, Mexico City 07738, DF, Mexico. [Destaillats, Hugo] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA USA. [Destaillats, Hugo] Arizona State Univ, Dept Civil & Environm Engn, Tempe, AZ 85287 USA. [Cervini-Silva, Javiera] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. [Cervini-Silva, Javiera] NASA, Astrobiol Inst, Washington, DC 20546 USA. RP Cervini-Silva, J (reprint author), Univ Autonoma Metropolitana, Dept Proc & Tecnol, Div Ciencias Nat & Ingn, Unidad Cuajimalpa UAM C, Artificios 40,40,6 Piso, Mexico City 01120, DF, Mexico. EM jcervini@correo.cua.uam.mx RI Destaillats, Hugo/B-7936-2013 FU Universidad Autonoma Metropolitana; CONACYT [23496] FX The authors thank Maria del Rocio Galindo Ortega (Universidad Autonoma Metropolitana Unidad Cuajimalpa) and Pilar Fernandez-Lomelin (Instituto de Geografia, UNAM) for technical assistance. This project was supported in part by Universidad Autonoma Metropolitana and ECACORE 2020 (SEMARNAT CONACYT 23496). NR 35 TC 6 Z9 6 U1 0 U2 25 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1566-7367 J9 CATAL COMMUN JI Catal. Commun. PD MAR 31 PY 2011 VL 12 IS 8 BP 698 EP 702 DI 10.1016/j.catcom.2010.10.029 PG 5 WC Chemistry, Physical SC Chemistry GA 741PM UT WOS:000288875900003 ER PT J AU Jansen, AN Clevenger, JA Baebler, AM Vaughey, JT AF Jansen, Andrew N. Clevenger, Jessica A. Baebler, Anna M. Vaughey, John T. TI Variable temperature performance of intermetallic lithium-ion battery anode materials SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Lithium ion battery; Anode; Low temperature; Intermetallic ID X-RAY-DIFFRACTION; LI-ION; ELECTRODES; CU6SN5; CELLS; ELECTROLYTES; ETA'-CU6SN5; LITHIATION; GRAPHITE; SURFACE AB Although a variety of cathode and electrolyte materials have been studied and commercialized over the past two decades, nearly all commercial cells have used a graphitic carbon anode. Several reasons exist for this choice-including cost, low insertion voltage, and ease of use in the cell manufacturing process. However as uses for lithium-ion batteries expand, alternative anodes that may offer better energy and power capability are being explored. For transportation-oriented purposes, anodes based on simple lithiated Zintl compounds, e.g. Li17Sn4, or intermetallic insertion anodes offer significant advantages in capacity (volumetric and gravimetric) and stability in the cell environment that make them attractive candidates for future cell chemistries. Within this context, little however is known about how these alternative anode materials perform as a function of temperature, which is important for applications where operation at temperatures as low as -30 degrees C can be expected. In this study we evaluated a series of intermetallic insertion anodes that operate by a simple metal displacement mechanism. We have found that for Cu6Sn5. Ag/Cu6Sn5, and Cu2Sb, the drop-off in performance with temperature is in line with that observed for a commercial graphite-based anode and indicates that additional variables such as cation diffusion through the electrode passivation film or the electrochemical double layer may be playing an important role that is independent of the underlying anode material. We additionally characterized the NiAs-type mineral Sorosite (CuSn0.9Sb0.1), as various literature reports had indicated that substitution of antimony for tin eliminated the need for interstitial copper, however powder X-ray diffraction studies of samples made by annealing or high energy ball milling indicated mixed phase samples. (c) 2011 Published by Elsevier B.V. C1 [Jansen, Andrew N.; Clevenger, Jessica A.; Baebler, Anna M.; Vaughey, John T.] Argonne Natl Lab, Electrochem Energy Storage Grp, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Vaughey, JT (reprint author), Argonne Natl Lab, Electrochem Energy Storage Grp, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM vaughey@anl.gov RI Jansen, Andrew/Q-5912-2016; OI Jansen, Andrew/0000-0003-3244-7790; Vaughey, John/0000-0002-2556-6129 FU Office of Vehicle Technologies of the U.S. Department of Energy [DE-AC02-06CH11357] FX J.A.C. and A.M.B. would like to acknowledge the support received while at Argonne National Laboratory as participants in the Science Undergraduate Research Internship (SULI) program administered by the Office of Science: Office of Workforce Development for Teachers and Scientists, U.S. Department of Energy. Support from the Office of Vehicle Technologies (Batteries for Advanced Transportation Technologies Program) of the U.S. Department of Energy under Contract No. DE-AC02-06CH11357 is gratefully acknowledged. NR 34 TC 8 Z9 8 U1 4 U2 37 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-8388 J9 J ALLOY COMPD JI J. Alloy. Compd. PD MAR 31 PY 2011 VL 509 IS 13 BP 4457 EP 4461 DI 10.1016/j.jallcom.2011.01.111 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 740ZO UT WOS:000288833100004 ER PT J AU Fu, H Zou, M AF Fu, H. Zou, M. TI Magnetic and magnetocaloric properties of ternary Gd-Co-Al bulk metallic glasses SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Rare earth; Bulk metallic glass; Magnetocaloric effect ID TRANSITION; ALLOYS AB Bulk metallic glasses (BMGs) with compositions of Gd(55)Co(x)Al(45-x) (15 <= x <= 30) and Gd(60)Co(y)Al(40-y) (15 <= y <= 30) were synthesized by an injection casting technique. Temperature dependence of magnetization of the BMGs indicates that their Curie temperatures can be tailored between 96 and 143 K by varying Gd and Co concentration. The magnetic entropy changes of the BMGs are greater than 9.0 J/kg K except for the Gd(55)Co(30)Al(15) glass that exhibits a reduced magnetization due to its large Co content. The relative cooling powers of the BMGs are greater than those of any other crystalline compounds and decrease with the increasing Co content. (C) 2011 Elsevier B.V. All rights reserved. C1 [Fu, H.] Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Sichuan, Peoples R China. [Fu, H.; Zou, M.] Iowa State Univ, Ames Lab, US Dept Energy, Ames, IA 50011 USA. RP Fu, H (reprint author), Univ Elect Sci & Technol China, Dept Appl Phys, 4,Sect 2,N Jianshe Rd, Chengdu 610054, Sichuan, Peoples R China. EM fuhao@uestc.edu.cn FU National Natural Science Foundation of China [50901013]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; Iowa State University of Science and Technology FX This work was supported by the National Natural Science Foundation of China (No. 50901013). Work at the Ames Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358 with Iowa State University of Science and Technology. We acknowledge Drs. K.A. Gshneidner, Jr. and V.K. Pecharsky for their support in sample preparation and characterization. NR 19 TC 13 Z9 13 U1 3 U2 18 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-8388 J9 J ALLOY COMPD JI J. Alloy. Compd. PD MAR 31 PY 2011 VL 509 IS 13 BP 4613 EP 4616 DI 10.1016/j.jallcom.2011.01.126 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 740ZO UT WOS:000288833100031 ER PT J AU Chen, CF Park, CH Boudouris, BW Horng, J Geng, BS Girit, C Zettl, A Crommie, MF Segalman, RA Louie, SG Wang, F AF Chen, Chi-Fan Park, Cheol-Hwan Boudouris, Bryan W. Horng, Jason Geng, Baisong Girit, Caglar Zettl, Alex Crommie, Michael F. Segalman, Rachel A. Louie, Steven G. Wang, Feng TI Controlling inelastic light scattering quantum pathways in graphene SO NATURE LA English DT Article ID GEL GATE DIELECTRICS; CARBON NANOTUBES; RAMAN-SPECTROSCOPY; TRANSISTORS; ELECTRONS AB Inelastic light scattering spectroscopy has, since its first discovery(1,2), been an indispensable tool in physical science for probing elementary excitations, such as phonons(3), magnons(4) and plasmons(5) in both bulk and nanoscale materials. In the quantum mechanical picture of inelastic light scattering, incident photons first excite a set of intermediate electronic states, which then generate crystal elementary excitations and radiate energy-shifted photons(6). The intermediate electronic excitations therefore have a crucial role as quantum pathways in inelastic light scattering, and this is exemplified by resonant Raman scattering(6) and Raman interference(7,8). The ability to control these excitation pathways can open up new opportunities to probe, manipulate and utilize inelastic light scattering. Here we achieve excitation pathway control in graphene with electrostatic doping. Our study reveals quantum interference between different Raman pathways in graphene: when some of the pathways are blocked, the one-phonon Raman intensity does not diminish, as commonly expected, but increases dramatically. This discovery sheds new light on the understanding of resonance Raman scattering in graphene. In addition, we demonstrate hot-electron luminescence9 in graphene as the Fermi energy approaches half the laser excitation energy. This hot luminescence, which is another form of inelastic light scattering, results from excited-state relaxation channels that become available only in heavily doped graphene. C1 [Chen, Chi-Fan; Park, Cheol-Hwan; Horng, Jason; Geng, Baisong; Girit, Caglar; Zettl, Alex; Crommie, Michael F.; Louie, Steven G.; Wang, Feng] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Boudouris, Bryan W.; Segalman, Rachel A.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Boudouris, Bryan W.; Zettl, Alex; Crommie, Michael F.; Segalman, Rachel A.; Louie, Steven G.; Wang, Feng] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Wang, F (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM fengwang76@berkeley.edu RI Park, Cheol-Hwan/A-1543-2009; Girit, Caglar/D-4845-2014; Zettl, Alex/O-4925-2016; wang, Feng/I-5727-2015; OI Park, Cheol-Hwan/0000-0003-1584-6896; Girit, Caglar/0000-0001-8953-9261; Zettl, Alex/0000-0001-6330-136X; Segalman, Rachel/0000-0002-4292-5103 FU US Department of Energy, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Office of Basic Energy Sciences [DE-AC02-05CH11231, DE-AC03-76SF0098]; ONR MURI [N00014-09-1-1066]; National Science Council; National Tsing Hua University, Taiwan [NSC98-2811-M-007-008, NSC98-2120-M-007-004] FX This work was supported by the US Department of Energy, Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under contract no. DE-AC02-05CH11231 (C.-F.C. and F.W.), by the Office of Basic Energy Sciences under contract nos DE-AC02-05CH11231 (B.W.B. and R.A.S.), DE-AC03-76SF0098 (Materials Science Division) (C.G., A.Z.) and DE-AC02-05CH11231 (Advanced Light Source), and by ONR MURI award N00014-09-1-1066 (J.H., C.-H.P., S.G.L., M.F.C.). C.-F.C. also acknowledges fellowship support from the National Science Council and National Tsing Hua University, Taiwan, under awards NSC98-2811-M-007-008 and NSC98-2120-M-007-004. NR 30 TC 205 Z9 208 U1 12 U2 170 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD MAR 31 PY 2011 VL 471 IS 7340 BP 617 EP 620 DI 10.1038/nature09866 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 742NN UT WOS:000288951200038 PM 21412234 ER PT J AU Maier, TA Graser, S Hirschfeld, PJ Scalapino, DJ AF Maier, T. A. Graser, S. Hirschfeld, P. J. Scalapino, D. J. TI d-wave pairing from spin fluctuations in the KxFe2-ySe2 superconductors SO PHYSICAL REVIEW B LA English DT Article AB Angle-resolved photoemission spectroscopy measurements on the recently discovered superconductors in the KFe2Se2 family with critical temperatures up to similar to 33 K suggest that no Fermi pockets of hole character centered on the Gamma point of the Brillouin zone are present, in contrast to all other known ferropnictide and ferrochalcogenide superconductors. Using a fluctuation exchange approximation and a five-orbital tight-binding description of the band structure, we calculate the effective pairing interaction. We find that the pairing state in this system is most likely to have d-wave symmetry due to pair scattering between the remaining electron Fermi pockets at wave vector q similar to (pi, pi), but without any symmetry-imposed nodes for the given Fermi surface. We propose experimental tests of this result, including the form of the resonance spectrum probed by inelastic neutron scattering. C1 [Maier, T. A.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci & Comp Sci, Oak Ridge, TN 37831 USA. [Maier, T. A.] Oak Ridge Natl Lab, Div Math, Oak Ridge, TN 37831 USA. [Graser, S.] Univ Augsburg, Ctr Elect Correlat & Magnetism, Inst Phys, D-86135 Augsburg, Germany. [Hirschfeld, P. J.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA. [Scalapino, D. J.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. RP Maier, TA (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci & Comp Sci, Oak Ridge, TN 37831 USA. RI Maier, Thomas/F-6759-2012 OI Maier, Thomas/0000-0002-1424-9996 FU DOE [DE-FG02-05ER46236]; DFG [TRR80]; National Science Foundation [PHY05-51164]; Free State of Bavaria; Center for Nanophase Materials Sciences; Scientific User Facilities Division, US Department of Energy FX This work was supported by DOE Grant No. DE-FG02-05ER46236 (P.J.H.), the DFG through TRR80, the National Science Foundation under Grant No. PHY05-51164, and the Free State of Bavaria through the BaCaTeC program (S.G.). T.A.M. and D.J.S. acknowledge support from the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, US Department of Energy. All authors are grateful for the hospitality and the vibrant and inspiring atmosphere at KITP, where this work was performed. We would also like to acknowledge fruitful discussions with A. Chubukov and I. Mazin. NR 25 TC 121 Z9 121 U1 3 U2 28 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 31 PY 2011 VL 83 IS 10 AR 100515 DI 10.1103/PhysRevB.83.100515 PG 4 WC Physics, Condensed Matter SC Physics GA 743DT UT WOS:000288998200002 ER PT J AU Ryan, DH Rowan-Weetaluktuk, WN Cadogan, JM Hu, R Straszheim, WE Bud'ko, SL Canfield, PC AF Ryan, D. H. Rowan-Weetaluktuk, W. N. Cadogan, J. M. Hu, R. Straszheim, W. E. Bud'ko, S. L. Canfield, P. C. TI Fe-57 Mossbauer study of magnetic ordering in superconducting K0.80Fe1.76Se2.00 single crystals SO PHYSICAL REVIEW B LA English DT Article ID PRESSURE; FE7SE8 AB The magnetic ordering of superconducting single crystals of K0.80Fe1.76Se2.00 has been studied between 10 and 550 Kusing Fe-57 Mossbauer spectroscopy. Despite being superconducting below T-sc similar to 30 K, the iron sublattice in K0.80Fe1.76Se2.00 clearly exhibits magnetic order from well below T-sc to its Neel temperature of T-N = 532 +/- 2 K. The iron moments are ordered almost parallel to the crystal c axis. The order collapses rapidly above 500 K and the accompanying growth of a paramagnetic component suggests that the magnetic transition may be first order, which may explain the unusual temperature dependence reported in recent neutron diffraction studies. C1 [Ryan, D. H.; Rowan-Weetaluktuk, W. N.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Ryan, D. H.; Rowan-Weetaluktuk, W. N.] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada. [Cadogan, J. M.] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada. [Hu, R.; Straszheim, W. E.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Hu, R.; Straszheim, W. E.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Ryan, DH (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. RI Hu, Rongwei/E-7128-2012; Canfield, Paul/H-2698-2014 FU Natural Sciences and Engineering Research Council of Canada; Fonds Quebecois de la Recherche sur la Nature et les Technologies; Canada Research Chairs program; AFOSR [FA9550-09-1-0603]; US Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering; Iowa State University [DE-AC02-07CH11358] FX Financial support for various stages of this work was provided by the Natural Sciences and Engineering Research Council of Canada and Fonds Quebecois de la Recherche sur la Nature et les Technologies. J.M.C. acknowledges support from the Canada Research Chairs program. R.H. and P.C.C. are supported by AFOSR-MURI Grant No. FA9550-09-1-0603. W.E.S. and S.L.B. are supported by the US Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Synthesis and basic characterization were performed in Ames Laboratory which is operated for the US Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. NR 40 TC 67 Z9 68 U1 1 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 31 PY 2011 VL 83 IS 10 AR 104526 DI 10.1103/PhysRevB.83.104526 PG 6 WC Physics, Condensed Matter SC Physics GA 743DT UT WOS:000288998200005 ER PT J AU Ward, TZ Gai, Z Guo, HW Yin, LF Shen, J AF Ward, T. Z. Gai, Z. Guo, H. W. Yin, L. F. Shen, J. TI Dynamics of a first-order electronic phase transition in manganites SO PHYSICAL REVIEW B LA English DT Article ID PERCOLATION AB By reducing an electronically phase-separated manganite (La(1-y)Pr(y))(x)Ca(1-x)MnO(3) single-crystal thin film to dimensions on the order of the inherent phase domains, it is possible to isolate and monitor the behavior of single domains at a first-order transition. At this critical point, it is possible to study the coexistence, formation, and annihilation processes of discrete electronic phase domains. With this technique, we make several observations on the mechanisms leading to the metal-insulator transition in manganites. We observe that domain formation is emergent and random, the transition process from the metallic phase to the insulating phase takes longer than the reverse process, electric field effects are more influential in driving a phase transition than current-induced electron heating, and single domain transition dynamics can be tuned through careful application of temperature and electric field. C1 [Ward, T. Z.; Gai, Z.; Guo, H. W.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37830 USA. [Gai, Z.] Oak Ridge Natl Lab, Ctr Nanophase, Oak Ridge, TN 37830 USA. [Gai, Z.] Oak Ridge Natl Lab, Div Mat Sci, Oak Ridge, TN 37830 USA. [Yin, L. F.; Shen, J.] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China. [Yin, L. F.; Shen, J.] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China. [Guo, H. W.; Shen, J.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Ward, TZ (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37830 USA. EM shenj5494@fudan.edu.cn RI Gai, Zheng/B-5327-2012; Ward, Thomas/I-6636-2016 OI Gai, Zheng/0000-0002-6099-4559; Ward, Thomas/0000-0002-1027-9186 FU US DOE Office of Basic Energy Sciences, Materials Sciences and Engineering Division, through the Oak Ridge National Laboratory; Scientific User Facilities Division, US DOE; US DOE Office of Basic Energy Sciences [DE-SC0002136]; National Basic Research Program of China (973 Program) [2011CB921801] FX This effort was supported by the US DOE Office of Basic Energy Sciences, Materials Sciences and Engineering Division, through the Oak Ridge National Laboratory (T.Z.W. and H.W.G.). A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, US DOE. We also acknowledge partial funding support from the US DOE Office of Basic Energy Sciences, the US DOE Grant No. DE-SC0002136 (Z.G.), and the National Basic Research Program of China (973 Program) under Grant No. 2011CB921801 (L.F.Y. and J.S.). NR 39 TC 23 Z9 24 U1 2 U2 26 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 31 PY 2011 VL 83 IS 12 AR 125125 DI 10.1103/PhysRevB.83.125125 PG 7 WC Physics, Condensed Matter SC Physics GA 743DX UT WOS:000288998600004 ER PT J AU Schroeder, CB Benedetti, C Esarey, E Leemans, WP AF Schroeder, C. B. Benedetti, C. Esarey, E. Leemans, W. P. TI Nonlinear Pulse Propagation and Phase Velocity of Laser-Driven Plasma Waves SO PHYSICAL REVIEW LETTERS LA English DT Article ID ACCELERATOR AB Laser evolution and plasma wave excitation by a relativistically intense short-pulse laser in underdense plasma are investigated in the broad pulse limit, including the effects of pulse steepening, frequency redshifting, and energy depletion. The nonlinear plasma wave phase velocity is shown to be significantly lower than the laser group velocity and further decreases as the pulse propagates owing to laser evolution. This lowers the thresholds for trapping and wave breaking and reduces the energy gain and efficiency of laser-plasma accelerators that use a uniform plasma profile. C1 [Schroeder, C. B.; Benedetti, C.; Esarey, E.; Leemans, W. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Schroeder, CB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. OI Schroeder, Carl/0000-0002-9610-0166 FU Office of Science, Office of High Energy Physics, of the U.S. DOE [DE-AC02-05CH11231] FX The authors acknowledge valuable conversations with B. Shadwick. This work was supported by the Director, Office of Science, Office of High Energy Physics, of the U.S. DOE under Contract No. DE-AC02-05CH11231. NR 14 TC 31 Z9 31 U1 3 U2 15 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 MAR 31 PY 2011 VL 106 IS 13 AR 135002 DI 10.1103/PhysRevLett.106.135002 PG 4 WC Physics, Multidisciplinary SC Physics GA 743EK UT WOS:000289000100009 PM 21517391 ER PT J AU Kanarr, AC Rupert, BL Hammond, S van de Lagemaat, J Johnson, JC Ferguson, AJ AF Kanarr, Allison C. Rupert, Benjamin L. Hammond, Scott van de Lagemaat, Jao Johnson, Justin C. Ferguson, Andrew J. TI Excited-State Processes in First-Generation Phenyl-Cored Thiophene Dendrimers SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID LIGHT-EMITTING-DIODES; POLYMER PHOTOVOLTAIC CELLS; SOLAR-CELLS; CONJUGATED POLYMERS; OLIGOTHIOPHENES; SPECTROSCOPY; ABSORPTION; EFFICIENCY; TRANSPORT; SINGLET AB First generation dendrimers with three oligothiophene arms (meta-arranged, 3G1-nS) and four arms (ortho- and para-arranged, 4G1-nS) connected to a central phenyl core were investigated spectroscopically in solution. In all dendrimers, on an ultrafast time scale (<10 ps), two "cooling" processes convert the initially generated, "hot" exciton into the geometrically relaxed, "cold" exciton. A decrease in the triplet yield, particularly evident for the 4-arm dendrimers; intersystem crossing rate; and nonradiative triplet decay time with increasing number of bridging thiophene units n all meet with expectations from prior studies on linear oligothiophenes. A relatively fast internal conversion process (>0.6 ns(-1)) is observed in both dendrimer series, possibly due to increased twisting about the phenyl core that reduces the triplet yields considerably with respect to oligothiophenes. An anomalous shifting of the triplet triplet absorption spectra characterizes the 4G1-nS dendrimers as unique from the 3G1-nS series in terms of the hindrance of torsional motion and confinement of excited states enforced by the arrangement of dendrons. C1 [Rupert, Benjamin L.; Hammond, Scott; van de Lagemaat, Jao; Johnson, Justin C.; Ferguson, Andrew J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Kanarr, Allison C.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80305 USA. RP Johnson, JC (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM justin.johnson@nrel.gov; andrew.ferguson@nrel.gov RI Rupert, Benjamin/E-1694-2011; van de Lagemaat, Jao/J-9431-2012; OI Ferguson, Andrew/0000-0003-2544-1753 FU U.S. Department of Energy [DE-AC36-08GO28308] FX This research was performed under a grant from the Laboratory Directed Research and Development program at the National Renewable Energy Laboratory, which is supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308. NR 47 TC 3 Z9 3 U1 2 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAR 31 PY 2011 VL 115 IS 12 BP 2515 EP 2522 DI 10.1021/jp110428u PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 738MT UT WOS:000288644600009 PM 21381649 ER PT J AU Vasu, SS Lam, KH Davidson, DF Hanson, RK Golden, DM AF Vasu, Subith S. Lam K Huynh Davidson, David F. Hanson, Ronald K. Golden, David M. TI Reactions of OH with Butene Isomers: Measurements of the Overall Rates and a Theoretical Study SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID CONCENTRATION-TIME-HISTORIES; HIGH-TEMPERATURE MEASUREMENTS; SHOCK-TUBE; HYDROXYL RADICALS; OXIDATION; KINETICS; DECOMPOSITION; HYDROCARBONS; ABSTRACTION; COMBUSTION AB Reactions of hydroxyl (OH) radicals with 1-butene (k(1)), trans-2-butene (k(2)), and cis-2-butene (k(3)) were studied behind reflected shock waves over the temperature range 880-1341 K and at pressures near 2.2 atm. OH radicals were produced by shock-heating tert-butyl hydroperoxide, (CH3)(3)-CO-OH, and monitored by narrow-line width ring dye laser absorption of the well-characterized R-1(5) line of the OH A-X (0, 0) band near 306.7 nm. OH time histories were modeled using a comprehensive C-5 oxidation mechanism, and rate constants for the reaction of OH with butene isomers were extracted by matching modeled and measured OH concentration time histories. We present the first high-temperature measurement of OH + cis-2-butene and extend the temperature range of the only previous high-temperature study for both 1-butene and trans-2-butene. With the potential energy surface calculated using CCSD(T)/6-311++G(d,p)//QCISD/6-31G(d),the rate constants and branching fractions for the H-abstraction channels of the reaction of OH with 1-butene were calculated in the temperature range 300-1500 K. Corrections for variational and tunneling effects as well as hindered-rotation treatments were included. The calculations are in good agreement with current and previous experimental data and with a recent theoretical study. C1 [Vasu, Subith S.; Davidson, David F.; Hanson, Ronald K.; Golden, David M.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA. [Vasu, Subith S.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. [Lam K Huynh] Int Univ VNUHCM, Sch Biotechnol, Ho Chi Minh City, Vietnam. [Lam K Huynh] Inst Computat Sci & Technol, Ho Chi Minh City, Vietnam. [Lam K Huynh] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. RP Vasu, SS (reprint author), Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA. EM subith@gmail.com OI Vasu, Subith/0000-0002-4164-3163 FU DOE Office of Basic Energy Sciences; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001198] FX The early portions of this work were supported by the DOE Office of Basic Energy Sciences, with Dr. Wade Sisk as contract monitor; the later portions were supported by the Combustion Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001198. The authors are grateful to Dr. H. Sun for providing calculated data on the variational effects and to Dr. H.-H. Carstensen for useful discussions. NR 52 TC 14 Z9 14 U1 1 U2 41 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD MAR 31 PY 2011 VL 115 IS 12 BP 2549 EP 2556 DI 10.1021/jp112294h PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 738MT UT WOS:000288644600013 PM 21388160 ER PT J AU Herascu, N Najafi, M Amunts, A Pieper, J Irrgang, KD Picorel, R Seibert, M Zazubovich, V AF Herascu, Nicoleta Najafi, Mehdi Amunts, Alexey Pieper, Joerg Irrgang, Klaus-Dieter Picorel, Rafael Seibert, Michael Zazubovich, Valter TI Parameters of the Protein Energy Landscapes of Several Light-Harvesting Complexes Probed via Spectral Hole Growth Kinetics Measurements SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID SINGLE-MOLECULE SPECTROSCOPY; HYPERQUENCHED GLASSY WATER; EXCITON LEVEL STRUCTURE; PLANT PHOTOSYSTEM-II; CORE ANTENNA COMPLEX; LOW-TEMPERATURE; GREEN PLANTS; ELECTRON-PHONON; LHC-II; THERMOSYNECHOCOCCUS-ELONGATUS AB The parameters of barrier distributions on the protein energy landscape in the excited electronic state of the pigment/protein system have been determined by means of spectral hole burning for the lowest-energy pigments of CP43 core antenna complex and CP29 minor antenna complex of spinach Photosystem II (PS II) as well as of trimeric and monomeric LHCII complexes transiently associated with the pea Photosystem I (PS I) pool. All of these complexes exhibit sixty to several hundred times lower spectral hole burning yields as compared with molecular glassy solids previously probed by means of the hole growth kinetics measurements. Therefore, the entities (groups of atoms), which participate in conformational changes in protein, appear to be significantly larger and heavier than those in molecular glasses. No evidence of a small (similar to 1 cm(-1)) spectral shift tier of the spectral diffusion dynamics has been observed. Therefore, our data most likely reflect the true barrier distributions of the intact protein and not those related to the interface or surrounding host. Possible applications of the barrier distributions as well as the assignments of low-energy states of CP29 and LHCII are discussed in light of the above results. C1 [Herascu, Nicoleta; Najafi, Mehdi; Zazubovich, Valter] Concordia Univ, Dept Phys, Montreal, PQ H4B 1R6, Canada. [Amunts, Alexey] MRC, Mol Biol Lab, Cambridge CB2 2QH, England. [Pieper, Joerg] Tech Univ Berlin, D-1000 Berlin, Germany. [Irrgang, Klaus-Dieter] Univ Appl Sci, Berlin, Germany. [Picorel, Rafael] CSIC, Estn Expt Aula Dei, Zaragoza 50059, Spain. [Seibert, Michael] NREL, Golden, CO USA. RP Zazubovich, V (reprint author), Concordia Univ, Dept Phys, 7141 Sherbrooke St W, Montreal, PQ H4B 1R6, Canada. EM vzazubov@alcor.concordia.ca RI PICOREL, RAFAEL/K-7930-2014 OI PICOREL, RAFAEL/0000-0003-3791-129X FU NSERC; CFI; Spanish MICINN [AGL2008-00377]; Deutsche Forschungsgemeinschaft [SFB 429, TP A1, TP A3] FX Research at Concordia University is supported by NSERC and CFI. We thank our collaborator Dr. Nathan Nelson (Tel Aviv University) for helping with LHCII purification and Dr. Tonu Reinot (ISU) for useful discussions on HGK modeling. Xin Zhao is acknowledged for buffer preparation. R.P. would like to thank Spanish MICINN (grant AGL2008-00377). M.S. acknowledges the contribution of the Photosynthetic Systems Program, Chemical Sciences, Geosciences, and Biosciences Division, Basic Energy Sciences, USDOE. J.P. and K.-D.I. gratefully acknowledge support from Deutsche Forschungsgemeinschaft (SFB 429, TP A1, and TP A3, respectively). NR 76 TC 12 Z9 12 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAR 31 PY 2011 VL 115 IS 12 BP 2737 EP 2747 DI 10.1021/jp108775y PG 11 WC Chemistry, Physical SC Chemistry GA 738MU UT WOS:000288644700006 PM 21391534 ER PT J AU Sun, XQ Wick, CD Thallapally, PK McGrail, BP Dang, LX AF Sun, Xiuquan Wick, Collin D. Thallapally, Praveen K. McGrail, B. Peter Dang, Liem X. TI Computational Study of Hydrocarbon Adsorption in Metal-Organic Framework Ni-2(dhtp) SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; RANKINE-CYCLE ORC; FORCE-FIELD; SYSTEMATIC DESIGN; FLUID SELECTION; WORKING FLUIDS; TEMPERATURE; DIFFUSION; HEAT; OPTIMIZATION AB Enhancing the efficiency of the Rankine cycle, which is utilized for multiple renewable energy sources, requires the use of a working fluid with a high latent heat of vaporization. To further enhance its latent heat, a working fluid can be placed in a metal organic heat carrier (MOHC) with a high heat of adsorption. One such material is Ni\DOBDC, in which linear alkanes have a higher heat of adsorption than cyclic alkanes. We carried out molecular dynamics simulations to investigate the structural, diffusive, and adsorption properties of n-hexane and cyclohexane in Ni\DOBDC. The strong binding for both n-hexane and cyclohexane with Ni\DOBDC is attributed to the increase of the heat of adsorption observed in experiments. Our structural results indicate the organic linkers in NA\DOBDC are the primary binding sites for both n-hexane and cydohexane molecules. However, at all temperatures and loadings examined in present work, n-hexane clearly showed stronger binding with Ni\DOBDC than cyclohexane. This was found to be the result of the ability of n-hexane to reconfigure its structure to a greater degree than cyclohexane to gain more contacts between adsorbates and adsorbents. The geometry and flexibility of guest molecules were also related to their diffusivity in Ni\DOBDC, with higher diffusion, for flexible molecules. Because of the large pore sizes in Ni\DOBDC, energetic effects were the dominant force for alkane adsorption and selectivity. C1 [Sun, Xiuquan; Thallapally, Praveen K.; McGrail, B. Peter; Dang, Liem X.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Wick, Collin D.] Louisiana Tech Univ, Ruston, LA 71270 USA. RP Dang, LX (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM liem.dang@pnl.gov RI thallapally, praveen/I-5026-2014 OI thallapally, praveen/0000-0001-7814-4467 FU Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Energy Sciences; U.S. Department of Energy (DOE); DOE [DE-AC05-76RL01830] FX This work was supported by the Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Energy Sciences, and by the Office of Energy Efficiency and Renewable Energy, Geothermal Technologies Program, U.S. Department of Energy (DOE). This manuscript has been authored by Battelle Memorial Institute, Pacific Northwest Division, under Contract No. DE-AC05-76RL01830 with the DOE. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 51 TC 7 Z9 7 U1 2 U2 21 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAR 31 PY 2011 VL 115 IS 12 BP 2842 EP 2849 DI 10.1021/jp1115299 PG 8 WC Chemistry, Physical SC Chemistry GA 738MU UT WOS:000288644700019 PM 21384829 ER PT J AU Idupulapati, N Devanathan, R Dupuis, M AF Idupulapati, Nagesh Devanathan, Ram Dupuis, Michel TI Atomistic Simulations of Perfluoro Phosphonic and Phosphinic Acid Membranes and Comparisons to Nafion SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID PROTON-EXCHANGE MEMBRANES; MOLECULAR-DYNAMICS SIMULATIONS; FUEL-CELL MEMBRANES; INTERMEDIATE TEMPERATURE; PROTOGENIC GROUP; SULFONIC-ACID; AB-INITIO; HYDRATED MORPHOLOGIES; NANOPHASE-SEGREGATION; CONDUCTING POLYMERS AB We used classical molecular dynamics simulations to investigate the morphology and proton transport properties of perfluoro phosphonic (FPA) and phosphinic acid (FPA-I) membranes that have potential applications in low-temperature fuel cells. We systematically investigated these properties as a function of the hydration level. We examined changes in structure, transport dynamics of water and hydronium ions, and water network percolation relative to those in Nafion membrane to examine the effect of functional group acidity on these properties. Phosphonic and phosphinic acid moieties in FPA and FPA-I have lower acidity than sulfonic acid in Nafion, yet the diffusion of water was faster in FPA and FPA-I than in Nafion, particularly at low hydration levels. However this did not give rise to notable differences in hydronium ion diffusion and water network percolation for these membranes over Nafion. These results, along with similar findings from our recent study of perfluoro-sulfonyl imide membranes carrying stronger superacids than the sulfonic acid of Nafion, suggest that there is no strong correlation between the acidity of the functional groups and the dynamics of water and hydronium ions in hydrated polymer electrolyte membranes with similar fluorocarbon backbones and side chains. C1 [Idupulapati, Nagesh; Devanathan, Ram; Dupuis, Michel] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. RP Idupulapati, N (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. EM nagesh.idupulapati@pnl.gov RI Devanathan, Ram/C-7247-2008 OI Devanathan, Ram/0000-0001-8125-4237 FU U.S. Department of Energy's (DOE) Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Biosciences Division [DE-AC05-76RL01830]; DOE's Office of Biological and Environmental Research at Pacific Northwest National Laboratory (PNNL); Office of Science of DOE [DE-AC02-05CH1123] FX This work was supported by the U.S. Department of Energy's (DOE) Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Biosciences Division under Contract DE-AC05-76RL01830. It was performed in part using the Molecular Science Computing Facility (MSCF) in the EMSL, a national scientific user facility sponsored by DOE's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for DOE. This work benefited also from resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of DOE under Contract No. DE-AC02-05CH1123. NR 60 TC 10 Z9 11 U1 2 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAR 31 PY 2011 VL 115 IS 12 BP 2959 EP 2969 DI 10.1021/jp111972h PG 11 WC Chemistry, Physical SC Chemistry GA 738MU UT WOS:000288644700033 PM 21391542 ER PT J AU Ganesh, P Jiang, DE Kent, PRC AF Ganesh, P. Jiang, De-en Kent, P. R. C. TI Accurate Static and Dynamic Properties of Liquid Electrolytes for Li-Ion Batteries from ab initio Molecular Dynamics SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID AUGMENTED-WAVE METHOD; ETHYLENE CARBONATE; PROPYLENE CARBONATE; DIMETHYL CARBONATE; LITHIUM; SIMULATION; SOLVATION; CHEMISTRY; INTERCALATION; ASSOCIATION AB Lithium-ion batteries have the potential to revolutionize the transportation industry, as they did for wireless communication. A judicious choice of the liquid electrolytes used in these systems is required to achieve a good balance among high-energy storage, long cycle life and stability, and fast charging. Ethyle:ne-carbonate (EC) and propylene-carbonate (PC) are popular electrolytes. However, to date, almost all molecular-dynamics simulations of these fluids rely on classical force fields, while a complete description of the functionality of Li-ion batteries will eventually require quantum mechanics. We perform accurate ab initio molecular-dynamics simulations of ethylene- and propylene-carbonate with LiPF(6) at experimental concentrations to build solvation models which explain available neutron scattering and nuclear magnetic resonance (NMR) results and to compute Li-ion solvation energies and diffusion constants. Our results suggest some similarities between the two liquids as well as some important differences. Simulations also provide useful insights into formation of solid-electrolyte interphases in the presence of electrodes in conventional Li-ion batteries. C1 [Ganesh, P.; Kent, P. R. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Jiang, De-en] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Ganesh, P (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. EM gpanchap@gmail.com RI Jiang, De-en/D-9529-2011; Kent, Paul/A-6756-2008; Ganesh, Panchapakesan/E-3435-2012; Ganesh, Panchapakesan/L-5571-2013 OI Jiang, De-en/0000-0001-5167-0731; Kent, Paul/0000-0001-5539-4017; Ganesh, Panchapakesan/0000-0002-7170-2902; FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [ERKCC61]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX This material is based upon work supported as part of the Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number ERKCC61. This research also used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 NR 36 TC 47 Z9 47 U1 4 U2 70 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD MAR 31 PY 2011 VL 115 IS 12 BP 3085 EP 3090 DI 10.1021/jp2003529 PG 6 WC Chemistry, Physical SC Chemistry GA 738MU UT WOS:000288644700046 PM 21384941 ER PT J AU Svedruzic, D Blackburn, JL Tenent, RC Rocha, JDR Vinzant, TB Heben, MJ King, PW AF Svedruzic, Drazenka Blackburn, Jeffrey L. Tenent, Robert C. Rocha, John-David R. Vinzant, Todd B. Heben, Michael J. King, Paul W. TI High-Performance Hydrogen Production and Oxidation Electrodes with Hydrogenase Supported on Metallic Single-Wall Carbon Nanotube Networks SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID FEFE HYDROGENASE; H-2 PRODUCTION; SURFACE-AREA; FUEL-CELLS; ENZYMES; REDOX; ELECTROCHEMISTRY; CHALLENGES; EVOLUTION; MODELS AB We studied the electrocatalytic activity of an [FeFe]-hydrogenase from Clostridium acetobutylicum (CaH2ase) immobilized on single-wall carbon nanotube (SWNT) networks. SWNT networks were prepared on carbon cloth by ultrasonic spraying of suspensions with predetermined ratios of metallic and semiconducting nanotubes. Current densities for both proton reduction and hydrogen oxidation electrocatalytic activities were at least 1 order of magnitude higher when hydrogenase was immobilized onto SWNT networks with high metallic tube (m-SWNT) content in comparison to hydrogenase supported on networks with low metallic tube content or when SWNTs were absent. We conclude that the increase in electrocatalytic activities in the presence of SWNTs was mainly due to the m-SWNT fraction and can be attributed to (i) substantial increases in the active electrode surface area, and (ii) improved electronic coupling between CaH2ase redox-active sites and the electrode surface. C1 [Svedruzic, Drazenka; Vinzant, Todd B.; King, Paul W.] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Blackburn, Jeffrey L.; Tenent, Robert C.; Rocha, John-David R.] Natl Renewable Energy Lab, Chem & Mat Sci Ctr, Golden, CO 80401 USA. [Heben, Michael J.] Univ Toledo, Dept Phys & Astron, Toledo, OH 43607 USA. RP King, PW (reprint author), Natl Renewable Energy Lab, Biosci Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. EM Pau.King@nrel.gov RI Blackburn, Jeffrey/D-7344-2012; Rocha, John-David/A-3186-2013; King, Paul/D-9979-2011 OI Rocha, John-David/0000-0001-6394-4349; King, Paul/0000-0001-5039-654X FU Laboratory Directed Research and Development program at the National Renewable Energy Laboratory FX This work was supported through the Laboratory Directed Research and Development program at the National Renewable Energy Laboratory. NR 42 TC 29 Z9 29 U1 2 U2 48 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAR 30 PY 2011 VL 133 IS 12 BP 4299 EP 4306 DI 10.1021/ja104785e PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA 778OZ UT WOS:000291715300036 PM 21384925 ER PT J AU Allian, AD Takanabe, K Fujdala, KL Hao, X Truex, TJ Cai, J Buda, C Neurock, M Iglesia, E AF Allian, Ayman D. Takanabe, Kazuhiro Fujdala, Kyle L. Hao, Xianghon Truex, Timothy J. Cai, Juan Buda, Corneliu Neurock, Matthew Iglesia, Enrique TI Chemisorption of CO and Mechanism of CO Oxidation on Supported Platinum Nanoclusters SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID CARBON-MONOXIDE OXIDATION; DENSITY-FUNCTIONAL THEORY; TOTAL-ENERGY CALCULATIONS; SURFACE ELEMENTARY STEPS; ELASTIC BAND METHOD; PT-GROUP METALS; WAVE BASIS-SET; CATALYTIC-OXIDATION; STRUCTURAL REQUIREMENTS; PT/AL2O3 CATALYST AB Kinetic, isotopic, and infrared studies on well-defined dispersed Pt clusters are combined here with first-principle theoretical methods on model cluster surfaces to probe the mechanism and structural requirements for CO oxidation catalysis at conditions typical of its industrial practice. CO oxidation turnover rates and the dynamics and thermodynamics of adsorption-desorption processes on cluster surfaces saturated with chemisorbed CO were measured on 1-20 nm Pt clusters under conditions of strict kinetic control. Turnover rates are proportional to O(2) pressure and inversely proportional to CO pressure, consistent with kinetically relevant irreversible O(2) activation steps on vacant sites present within saturated CO monolayers. These conclusions are consistent with the lack of isotopic scrambling in C(16)O-(18)O(2)-(16)O(2) reactions, and with infrared bands for chemisorbed CO that did not change within a CO pressure range that strongly influenced CO oxidation turnover rates. Density functional theory estimates of rate and equilibrium constants show that the kinetically relevant O(2) activation steps involve direct O(2)* (or O(2)) reactions with CO* to form reactive O*-O-C*=O intermediates that decompose to form CO(2) and chemisorbed O*, instead of unassisted activation steps involving molecular adsorption and subsequent dissociation of O(2). These CO-assisted O(2) dissociation pathways avoid the higher barriers imposed by the spin-forbidden transitions required for unassisted O(2) dissociation on surfaces saturated with chemisorbed CO. Measured rate parameters for CO oxidation were independent of Pt cluster size; these parameters depend on the ratio of rate constants for 02 reactions with CO* and CO adsorption equilibrium constants, which reflect the respective activation barriers and reaction enthalpies for these two steps. Infrared spectra during isotopic displacement and thermal desorption with (12)CO-(13)CO mixtures showed that the binding, dynamics, and thermodynamics of CO chemisorbed at saturation coverages do not depend on Pt cluster size in a range that strongly affects the coordination of Pt atoms exposed at cluster surfaces. These data and their theoretical and mechanistic interpretations indicate that the remarkable structure insensitivity observed for CO oxidation reactions reflects average CO binding properties that are essentially independent of cluster size. Theoretical estimates of rate and equilibrium constants for surface reactions and CO adsorption show that both parameters increase as the coordination of exposed Pt atoms decreases in Pt(201) cluster surfaces; such compensation dampens but does not eliminate coordination and cluster size effects on measured rate constants. The structural features and intrinsic non-uniformity of cluster surfaces weaken when CO forms saturated monolayers on such surfaces, apparently because surfaces and adsorbates restructure to balance CO surface binding and CO-CO interaction energies. C1 [Allian, Ayman D.; Takanabe, Kazuhiro; Iglesia, Enrique] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. [Fujdala, Kyle L.; Hao, Xianghon; Truex, Timothy J.; Cai, Juan] Nanostellar Inc, Redwood City, CA 94063 USA. [Buda, Corneliu; Neurock, Matthew] Univ Virginia, Dept Chem Engn, Charlottesville, VA 22904 USA. [Buda, Corneliu; Neurock, Matthew] Univ Virginia, Dept Chem, Charlottesville, VA 22904 USA. [Iglesia, Enrique] EO Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Fujdala, KL (reprint author), Precursor Energet, 3221 Scott Blvd, Santa Clara, CA 95054 USA. EM kfujdala@precursorenergetics.com; mn4n@virginia.edu; iglesia@berkeley.edu RI Takanabe, Kazuhiro/D-6119-2011; Iglesia, Enrique/D-9551-2017 OI Takanabe, Kazuhiro/0000-0001-5374-9451; Iglesia, Enrique/0000-0003-4109-1001 FU Nanostellar; Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy [DE-AC02-05CH11231]; Department of Energy's office of Biological and Environmental Research FX We thank Prof. Johannes Lercher (Technical University of Munich) for help with the design the infrared cell used in the study. This work was supported by Nanostellar and the Director Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy under Contract DE-AC02-05CH11231. We thank Dr. Mats I. Larsson (Nanostellar, Inc.) for assistance with the dispersion calculations. We also kindly acknowledge the computational time at the Environmental Molecular Science Laboratory, a national scientific user facilities sponsored by the Department of Energy's office of Biological and Environmental Research and located at Pacific Northwest National Laboratory, which was used to conduct the computational work. Finally, this article is dedicated to the memory of D. Timothy J. Truex. NR 74 TC 119 Z9 121 U1 16 U2 234 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD MAR 30 PY 2011 VL 133 IS 12 BP 4498 EP 4517 DI 10.1021/ja110073u PG 20 WC Chemistry, Multidisciplinary SC Chemistry GA 778OZ UT WOS:000291715300057 PM 21366255 ER PT J AU Groenewold, GS Appelhans, AD McIlwain, ME Gresham, GL AF Groenewold, G. S. Appelhans, A. D. McIlwain, M. E. Gresham, G. L. TI Characterization of coordination complexes by desorption electrospray mass spectrometry with a capillary target SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY LA English DT Article DE DEDI; Metal speciation; Coordination complexes; Capillary target ID LASER-INDUCED FLUORESCENCE; QUADRUPOLE ION-TRAP; GAS-PHASE; IONIZATION DESI; CROWN-ETHERS; VIBRATIONAL SPECTROSCOPY; GEOMETRY OPTIMIZATION; IRMPD SPECTROSCOPY; AMBIENT CONDITIONS; METAL-COMPLEXES AB Metal coordination complexes were formed directly from liquid surfaces using desorption electrospray ionization (DESI) mass spectrometry, in which the analyte solutions were furnished by a target capillary that protrudes into the ESI spray. The approach is attractive because it separates complexities of ESI spray droplet formation from delivery of the analyte solution, and thereby gets around difficulty resulting from alteration of the spray process by changes in solution chemistry. Cs(+), Ba(2+), and La(3+) coordination complexes were formed using 18-crown-6 (18c6) and triethylphosphate (TEP) as ligands (L), that had the general formula [M(n+)(NO(3)(-))(n-1)(L)(m)](+). Formation of singly charged cation complexes was preferred, with charge reduction at the metal site accomplished by attachment of nitrate. Using TEP as a model phosphoryl ligand, alkali metals coordinate with up to three ligands, with Cs(+) preferring fewer than Na(+)center dot Ba(2+) and La(3+) are formed as ion pair complexes [Ba(NO(3))](+) and [La(NO(3))(2)](+), and both will coordinate with up to four TEP ligands. Using 18c6, Cs(+) forms a bis-ligand complex. In contrast, [Ba(NO(3))](+) prefers a single 18c6 ligand, while La forms mainly [La(NO(3))(2)(18c6)](+), for which DFT calculations suggested a structure in which the nitrate ligands occupy pseudo-axial positions on opposing sides of the crown. Lower abundances of bis-18c6 complexes were also formed together with doubly charged [La(NO(3))(18c6)(n)](2+) complexes (n = 2-4). The results suggest an alternative strategy for probing metal speciation in solution that is less perturbed by the droplet formation and ionization mechanisms operating in conventional electrospray ionization mass spectrometry. (C) 2010 Elsevier B.V. All rights reserved. C1 [Groenewold, G. S.; Appelhans, A. D.; McIlwain, M. E.; Gresham, G. L.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Groenewold, GS (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA. EM gary.groenewold@inl.gov FU U.S. Department of Energy, Assistant Secretary for Environmental Management; INL Laboratory under DOE Idaho Operations Office [DE-AC07-05ID14517] FX Work by G.S. Groenewold was supported by the U.S. Department of Energy, Assistant Secretary for Environmental Management, and the INL Laboratory Directed Research & Development Program under DOE Idaho Operations Office Contract DE-AC07-05ID14517. NR 56 TC 5 Z9 5 U1 3 U2 18 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 MAR 30 PY 2011 VL 301 IS 1-3 SI SI BP 136 EP 142 DI 10.1016/j.ijms.2010.07.028 PG 7 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA 758TQ UT WOS:000290190000016 ER PT J AU Cruz-Garcia, C Murray, AE Rodrigues, JLM Gralnick, JA McCue, LA Romine, MF Loffler, FE Tiedje, JM AF Cruz-Garcia, Claribel Murray, Alison E. Rodrigues, Jorge L. M. Gralnick, Jeffrey A. McCue, Lee Ann Romine, Margaret F. Loeffler, Frank E. Tiedje, James M. TI Fnr (EtrA) acts as a fine-tuning regulator of anaerobic metabolism in Shewanella oneidensis MR-1 SO BMC MICROBIOLOGY LA English DT Article ID ESCHERICHIA-COLI K-12; HYBRID-CLUSTER PROTEIN; GRAM-NEGATIVE BACTERIA; PSEUDOMONAS-STUTZERI WM88; PUTREFACIENS MR-1; TRANSCRIPTION FACTOR; ELECTRON-TRANSPORT; PRISMANE PROTEIN; RECEPTOR PROTEIN; STRUCTURAL BASIS AB Background: EtrA in Shewanella oneidensis MR-1, a model organism for study of adaptation to varied redox niches, shares 73.6% and 50.8% amino acid sequence identity with the oxygen-sensing regulators Fnr in E. coli and Anr in Pseudomonas aeruginosa, respectively; however, its regulatory role of anaerobic metabolism in Shewanella spp. is complex and not well understood. Results: The expression of the nap genes, nrfA, cymA and hcp was significantly reduced in etrA deletion mutant EtrA7-1; however, limited anaerobic growth and nitrate reduction occurred, suggesting that multiple regulators control nitrate reduction in this strain. Dimethyl sulfoxide (DMSO) and fumarate reductase gene expression was down-regulated at least 2-fold in the mutant, which, showed lower or no reduction of these electron acceptors when compared to the wild type, suggesting both respiratory pathways are under EtrA control. Transcript analysis further suggested a role of EtrA in prophage activation and down-regulation of genes implicated in aerobic metabolism. Conclusion: In contrast to previous studies that attributed a minor regulatory role to EtrA in Shewanella spp., this study demonstrates that EtrA acts as a global transcriptional regulator and, in conjunction with other regulators, fine-tunes the expression of genes involved in anaerobic metabolism in S. oneidensis strain MR-1. Transcriptomic and sequence analyses of the genes differentially expressed showed that those mostly affected by the mutation belonged to the "Energy metabolism" category, while stress-related genes were indirectly regulated in the mutant possibly as a result of a secondary perturbation (e. g. oxidative stress, starvation). We also conclude based on sequence, physiological and expression analyses that this regulator is more appropriately termed Fnr and recommend this descriptor be used in future publications. C1 [Cruz-Garcia, Claribel; Murray, Alison E.; Tiedje, James M.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA. [Tiedje, James M.] Michigan State Univ, Dept Microbiol & Mol Genet, E Lansing, MI 48824 USA. [Cruz-Garcia, Claribel; Tiedje, James M.] Michigan State Univ, Dept Crop & Soil Sci, E Lansing, MI 48824 USA. [Rodrigues, Jorge L. M.] Univ Texas Arlington, Dept Biol, Arlington, TX 76019 USA. [Gralnick, Jeffrey A.] Univ Minnesota, Dept Microbiol, St Paul, MN 55108 USA. [McCue, Lee Ann; Romine, Margaret F.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Loeffler, Frank E.] Univ Tennessee, Dept Microbiol, Knoxville, MN USA. [Loeffler, Frank E.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, MN USA. [Loeffler, Frank E.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Cruz-Garcia, Claribel] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. [Murray, Alison E.] Desert Res Inst, Div Earth & Ecosyst Sci, Reno, NV 89512 USA. RP Tiedje, JM (reprint author), Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA. EM tiedjej@msu.edu RI Loeffler, Frank/M-8216-2013; OI Gralnick, Jeffrey/0000-0001-9250-7770; Romine, Margaret/0000-0002-0968-7641; McCue, Lee Ann/0000-0003-4456-517X FU Department of Energy [DE-FG02-02ER63342]; Office of Biological and Environmental Research; Environmental Remediation Science Division, Biological and Environmental Research [DE-FG02-04ER63718.25]; Office of Biological and Environmental Research [E-FG02-04ER63942]; United States Department of Energy [DE-AC05-76RL01830] FX We thank Xiaoyun Qiu for advice on the DNA microarray work, Valley Stewart and Joel Klappenbach for advice and discussion. We thank Benjamin K. Amos, Jed Costanza, Qingzhong Wu and Sara H. Thomas for technical assistance in the phenotypic characterization of the EtrA/-1 strain. We also acknowledge members of the Shewanella Federation for helpful discussions. This study was supported by Department of Energy grants DE-FG02-02ER63342 from the Genomics Program, Office of Biological and Environmental Research (awarded to JMT), DE-FG02-04ER63718.25 from the Environmental Remediation Science Division, Biological and Environmental Research (awarded to FEL) and DE-FG02-04ER63942 from the Genomes to Life Program, Office of Biological and Environmental Research (awarded to LAM). Contributions by MFR and LAM were performed at Pacific Northwest National Laboratory, which is operated by Battelle for the United States Department of Energy under Contract DE-AC05-76RL01830. NR 64 TC 14 Z9 14 U1 4 U2 23 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2180 J9 BMC MICROBIOL JI BMC Microbiol. PD MAR 30 PY 2011 VL 11 AR 64 DI 10.1186/1471-2180-11-64 PG 14 WC Microbiology SC Microbiology GA 750NQ UT WOS:000289555600001 PM 21450087 ER PT J AU Starodub, E Bostwick, A Moreschini, L Nie, S El Gabaly, F McCarty, KF Rotenberg, E AF Starodub, Elena Bostwick, Aaron Moreschini, Luca Nie, Shu El Gabaly, Farid McCarty, Kevin F. Rotenberg, Eli TI In-plane orientation effects on the electronic structure, stability, and Raman scattering of monolayer graphene on Ir(111) SO PHYSICAL REVIEW B LA English DT Article ID EPITAXIAL GRAPHENE; WORK-FUNCTION; CRYSTAL-SURFACES; METAL-SURFACES; SPECTROSCOPY; GRAPHITE; RU(0001); CARBON; LEED; TRANSITION AB We employ angle-resolved photoemission spectroscopy (ARPES) to investigate the electronic structures of two rotational variants of epitaxial, single-layer graphene on Ir(111). As grown, the more-abundant R0 variant is nearly charge neutral, with strong hybridization between graphene and Ir bands near the Fermi level. The graphene Fermi surface and its replicas exactly coincide with Van Hove singularities in the Ir Fermi surface. Sublattice symmetry breaking introduces a small gap-inducing potential at the Dirac crossing, which is revealed by n doping the graphene using K atoms. The energy gaps between main and replica bands (originating from the moire interference pattern between graphene and Ir lattices) is shown to be nonuniform along the minizone boundary owing to hybridization with Ir bands. An electronically mediated interaction is proposed to account for the stability of the R0 variant. The variant rotated 30 degrees in plane, R30, is p doped as grown, and K doping reveals no band gap at the Dirac crossing. No replica bands are found in ARPES measurements. Raman spectra from the R30 variant exhibit the characteristic phonon modes of graphene, while R0 spectra are featureless. These results show that the film and substrate interaction changes from chemisorption (R0) to physisorption (R30) with in-plane orientation. Finally, graphene-covered Ir has a work function lower than the clean substrate but higher than graphite. C1 [Starodub, Elena; Nie, Shu; El Gabaly, Farid; McCarty, Kevin F.] Sandia Natl Labs, Livermore, CA 94550 USA. [Bostwick, Aaron; Moreschini, Luca; Rotenberg, Eli] EO Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Starodub, E (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA. RI McCarty, Kevin/F-9368-2012; Bostwick, Aaron/E-8549-2010; Rotenberg, Eli/B-3700-2009 OI McCarty, Kevin/0000-0002-8601-079X; Rotenberg, Eli/0000-0002-3979-8844 FU Office of Basic Energy Sciences, Division of Materials Sciences and Engineering of the US DOE [DE-AC04-94AL85000]; Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; Swiss National Science Foundation [PBELP2-125484] FX The authors thank Joshua Whaley for programming the stage of the Raman system. Work at Sandia was supported by the Office of Basic Energy Sciences, Division of Materials Sciences and Engineering of the US DOE under Contract No. DE-AC04-94AL85000. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. L.M. acknowledges support by the Swiss National Science Foundation through project PBELP2-125484. NR 57 TC 81 Z9 81 U1 5 U2 87 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 30 PY 2011 VL 83 IS 12 AR 125428 DI 10.1103/PhysRevB.83.125428 PG 9 WC Physics, Condensed Matter SC Physics GA 742LS UT WOS:000288945900005 ER PT J AU Choi, SG Yi, HT Cheong, SW Hilfiker, JN France, R Norman, AG AF Choi, S. G. Yi, H. T. Cheong, S. -W. Hilfiker, J. N. France, R. Norman, A. G. TI Optical anisotropy and charge-transfer transition energies in BiFeO3 from 1.0 to 5.5 eV SO PHYSICAL REVIEW B LA English DT Article ID SPECTROSCOPIC ELLIPSOMETRY AB We discuss uniaxial optical anisotropy in single-crystal BiFeO3 determined by spectroscopic ellipsometry from 1.0 to 5.5 eV. The dielectric function epsilon = epsilon(1) + i epsilon(2) and refractive index N = n + ik spectra of BiFeO3 are extracted for the tensor components along its ordinary and extraordinary principal axes. Using the standard line-shape analysis, we also obtain the energies of the major optical structures associated with the charge-transfer transitions in BiFeO3. C1 [Choi, S. G.; France, R.; Norman, A. G.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Yi, H. T.; Cheong, S. -W.] Rutgers State Univ, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA. [Yi, H. T.; Cheong, S. -W.] Rutgers State Univ, Dept Elect & Comp Engn, Piscataway, NJ 08854 USA. [Hilfiker, J. N.] JA Woollam Co Inc, Lincoln, NE 68508 USA. RP Choi, SG (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM sukgeun.choi@nrel.gov RI Norman, Andrew/F-1859-2010; Yi, Hee Taek/F-6399-2010; Choi, Sukgeun/J-2345-2014 OI Norman, Andrew/0000-0001-6368-521X; FU U.S. Department of Energy (DOE) [DE-AC36-08GO28308, DE-FG02-07ER46382] FX This work was supported by the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. The work at Rutgers University was supported by the U.S. DOE under Grant No. DE-FG02-07ER46382. NR 21 TC 16 Z9 16 U1 0 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 30 PY 2011 VL 83 IS 10 AR 100101 DI 10.1103/PhysRevB.83.100101 PG 4 WC Physics, Condensed Matter SC Physics GA 742LO UT WOS:000288945400001 ER PT J AU Fishman, RS Miller, JS AF Fishman, Randy S. Miller, Joel S. TI Determination of the magnetic ground state of a polycrystalline compound based on susceptibility measurements SO PHYSICAL REVIEW B LA English DT Article ID MOLECULE-BASED MAGNETS; BUILDING-BLOCKS; MONOCATION; 3-D AB The diruthenium compound [Ru(2)(O(2)CMe)(4)](3)[Cr(CN)(6)] contains two interpenetrating sublattices that behave like giant antiferromagnetically coupled moments with strong anisotropy. Preferred orientations of the total moment of each sublattice are determined from susceptibility measurements on a polycrystalline sample. In agreement with previous predictions, fits to the experimental magnetization indicate that the sublattice moments are aligned along cubic diagonals rather than cubic axis or edge diagonals. The parametrization of the sublattice susceptibility implies that the sublattice spin states are more deformed when aligned antiparallel. C1 [Fishman, Randy S.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Miller, Joel S.] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA. RP Fishman, RS (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RI Fishman, Randy/C-8639-2013 FU Division of Materials Science and Engineering of the US Department of Energy; US National Science Foundation [0553573] FX The original magnetization data were collected by William W. Shum and presented in Refs. 7 and 12. Useful conversations with Fernando Reboredo and Peter Stephens are also gratefully acknowledged. This research was sponsored by the Division of Materials Science and Engineering of the US Department of Energy (R.S.F.) and by the US National Science Foundation (Grant No. 0553573) (J.S.M.). NR 12 TC 3 Z9 3 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 30 PY 2011 VL 83 IS 9 AR 094433 DI 10.1103/PhysRevB.83.094433 PG 5 WC Physics, Condensed Matter SC Physics GA 742LJ UT WOS:000288944800005 ER PT J AU Mun, ED Altarawneh, MM Mielke, CH Zapf, VS Hu, R Bud'ko, SL Canfield, PC AF Mun, E. D. Altarawneh, M. M. Mielke, C. H. Zapf, V. S. Hu, R. Bud'ko, S. L. Canfield, P. C. TI Anisotropic Hc2 of K0.8Fe(1.76)Se(2) determined up to 60 T SO PHYSICAL REVIEW B LA English DT Article ID HIGH-FIELD SUPERCONDUCTORS; TEMPERATURE AB The anisotropic upper critical field, H-c2(T), curves for K0.8Fe1.76Se2 are determined over a wide range of temperatures down to 1.5 K and magnetic fields up to 60 T. Anisotropic initial slopes of H-c2 similar to -1.4 T/K and -4.6 T/K for magnetic field applied along c axis and ab plane, respectively, were observed. Whereas the c axis H-c2(c) (T) increases quasilinearly with decreasing temperature, the ab plane H-c2(ab) (T) shows a flattening, starting near 25 K above 30 T. This leads to a nonmonotonic temperature dependence of the anisotropy parameter gamma(H) H-c2(ab)/H-c2(c). The anisotropy parameter is similar to 2 near T-c similar to 32 K and rises to a maximum gamma(H) similar to 3.6 around 27 K. For lower temperatures, gamma(H) decreases with T in a linear fashion, dropping to gamma(H) similar to 2.5 by T similar to 18 K. Despite the apparent differences between the K0.8Fe1.76Se2 and (Ba0.55K0.45)Fe2As2 or Ba(Fe0.926Co0.074)(2)As-2, in terms of the magnetic state and proximity to an insulating state, the H-c2(T) curves are remarkably similar. C1 [Mun, E. D.; Altarawneh, M. M.; Mielke, C. H.; Zapf, V. S.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. [Hu, R.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Hu, R.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Mun, ED (reprint author), Los Alamos Natl Lab, Natl High Magnet Field Lab, POB 1663, Los Alamos, NM 87545 USA. RI Hu, Rongwei/E-7128-2012; Zapf, Vivien/K-5645-2013; Canfield, Paul/H-2698-2014 OI Zapf, Vivien/0000-0002-8375-4515; FU NSF; DOE; State of Florida; AFOSR MURI [FA9550-09-1-0603]; State of Iowa through the Iowa State University; U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering; Iowa State University [E-AC02-07CH11358] FX We thank V.G. Kogan for edifying and uplifting discussions. Work at the NHMFL-PFF is supported by the NSF, the DOE, and the State of Florida. R.H. and P.C.C. are supported by AFOSR MURI Grant No. FA9550-09-1-0603. S. L. B. was supported in part by the State of Iowa through the Iowa State University and the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Synthesis and low field characterization were performed in Ames Laboratory which is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. NR 33 TC 43 Z9 44 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 30 PY 2011 VL 83 IS 10 AR 100514 DI 10.1103/PhysRevB.83.100514 PG 4 WC Physics, Condensed Matter SC Physics GA 742LO UT WOS:000288945400002 ER PT J AU Munbodh, K Perez, FA Keenan, C Lederman, D Zhernenkov, M Fitzsimmons, MR AF Munbodh, K. Perez, F. A. Keenan, C. Lederman, D. Zhernenkov, M. Fitzsimmons, M. R. TI Effects of hydrogen/deuterium absorption on the magnetic properties of Co/Pd multilayers SO PHYSICAL REVIEW B LA English DT Article ID X-RAY REFLECTIVITY; PD/FE MULTILAYERS; HYDROGEN ABSORPTION; 001 SUPERLATTICES; PD-CO; PALLADIUM; FILMS; ANISOTROPY; ALLOYS; RESISTIVITY AB The effects of hydrogen (H(2)) and deuterium (D(2)) absorption were studied in two Co/Pd multilayers with perpendicular magnetic anisotropy (PMA) using polarized neutron reflectivity (PNR). PNR was measured in an external magnetic field H applied in the plane of the sample with the magnetization M confined in the plane for mu(o)H = 6.0 T and partially out of plane at 0.65 T. Nominal thicknesses of the Co and Pd layers were 2.5 and 21 angstrom, respectively. Because of these small values, the actual layer chemical composition, thickness, and interface roughness parameters were determined from the nuclear scattering length density profile (rho(n)) and its derivative obtained from both x-ray reflectivity and PNR, and uncertainties were determined using Monte Carlo analysis. The PNR rho(n) showed that although D2 absorption occurred throughout the samples, absorption in the multilayer stack was modest (0.02 D per Pd atom) and thus did not expand. Direct magnetometry showed that H(2) absorption decreased the total M at saturation and increased the component of M in the plane of the sample when not at saturation. The PNR magnetic scattering length density (rho(m)) revealed that the Pd layers in the multilayer stack were magnetized and that their magnetization was preferentially modified upon D(2) absorption. In one sample, a modulation of M with twice the multilayer period was observed at mu(o)H = 0.65 T, which increased upon D(2) absorption. These results indicate that H(2) or D(2) absorption decreases both the PMA and total magnetization of the samples. The lack of measurable expansion during absorption indicates that these changes are primarily governed by modification of the electronic structure of the material. C1 [Munbodh, K.; Perez, F. A.; Keenan, C.; Lederman, D.] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA. [Zhernenkov, M.; Fitzsimmons, M. R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Munbodh, K (reprint author), W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA. EM kmunbodh@mix.wvu.edu RI Lujan Center, LANL/G-4896-2012; OI Zhernenkov, Mikhail/0000-0003-3604-0672 FU DOE [DE-PS02-07ER087-15, DE-AC52-06NA25396]; WVNano Initiative at WVU; US Department of Energy Office of Basic Energy Sciences FX This work was supported by DOE Grant No. DE-PS02-07ER087-15 and the WVNano Initiative at WVU. The Los Alamos Neutron Science Center facility at the Los Alamos National Laboratory is funded by the US Department of Energy 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 authors thank Matts Bjorck for his valuable suggestions in using his program, GENX, for fitting the neutron data. NR 42 TC 18 Z9 18 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 30 PY 2011 VL 83 IS 9 AR 094432 DI 10.1103/PhysRevB.83.094432 PG 10 WC Physics, Condensed Matter SC Physics GA 742LJ UT WOS:000288944800004 ER PT J AU Ahmed, Z Akerib, DS Arrenberg, S Bailey, CN Balakishiyeva, D Baudis, L Bauer, DA Brink, PL Bruch, T Bunker, R Cabrera, B Caldwell, DO Cooley, J Silva, EDE Cushman, P Daal, M DeJongh, F Di Stefano, P Dragowsky, MR Duong, L Fallows, S Figueroa-Feliciano, E Filippini, J Fox, J Fritts, M Golwala, SR Hall, J Hennings-Yeomans, R Hertel, SA Holmgren, D Hsu, L Huber, ME Kamaev, O Kiveni, M Kos, M Leman, SW Liu, S Mahapatra, R Mandic, V McCarthy, KA Mirabolfathi, N Moore, D Nelson, H Ogburn, RW Phipps, A Pyle, M Qiu, X Ramberg, E Rau, W Reisetter, A Resch, R Saab, T Sadoulet, B Sander, J Schnee, RW Seitz, DN Serfass, B Sundqvist, KM Tarka, M Wikus, P Yellin, S Yoo, J Young, BA Zhang, J AF Ahmed, Z. Akerib, D. S. Arrenberg, S. Bailey, C. N. Balakishiyeva, D. Baudis, L. Bauer, D. A. Brink, P. L. Bruch, T. Bunker, R. Cabrera, B. Caldwell, D. O. Cooley, J. do Couto e Silva, E. Cushman, P. Daal, M. DeJongh, F. Di Stefano, P. Dragowsky, M. R. Duong, L. Fallows, S. Figueroa-Feliciano, E. Filippini, J. Fox, J. Fritts, M. Golwala, S. R. Hall, J. Hennings-Yeomans, R. Hertel, S. A. Holmgren, D. Hsu, L. Huber, M. E. Kamaev, O. Kiveni, M. Kos, M. Leman, S. W. Liu, S. Mahapatra, R. Mandic, V. McCarthy, K. A. Mirabolfathi, N. Moore, D. Nelson, H. Ogburn, R. W. Phipps, A. Pyle, M. Qiu, X. Ramberg, E. Rau, W. Reisetter, A. Resch, R. Saab, T. Sadoulet, B. Sander, J. Schnee, R. W. Seitz, D. N. Serfass, B. Sundqvist, K. M. Tarka, M. Wikus, P. Yellin, S. Yoo, J. Young, B. A. Zhang, J. CA CDMS Collaboration TI Results from a Low-Energy Analysis of the CDMS II Germanium Data SO PHYSICAL REVIEW LETTERS LA English DT Article ID INTERACTING MASSIVE PARTICLES; SUPERSYMMETRIC DARK-MATTER; CONSTRAINTS; CANDIDATES; DAMA/LIBRA AB We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Data taken between October 2006 and September 2008 using eight germanium detectors are reanalyzed with a lowered, 2 keV recoil-energy threshold, to give increased sensitivity to interactions from weakly interacting massive particles (WIMPs) with masses below similar to 10 GeV/c(2). This analysis provides stronger constraints than previous CDMS II results for WIMP masses below 9 GeV/c(2) and excludes parameter space associated with possible low-mass WIMP signals from the DAMA/LIBRA and CoGeNT experiments. C1 [Ahmed, Z.; Filippini, J.; Golwala, S. R.; Moore, D.] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA. [Akerib, D. S.; Bailey, C. N.; Dragowsky, M. R.; Hennings-Yeomans, R.] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA. [Bauer, D. A.; DeJongh, F.; Hall, J.; Holmgren, D.; Hsu, L.; Ramberg, E.; Yoo, J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Sadoulet, B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Figueroa-Feliciano, E.; Hertel, S. A.; Leman, S. W.; McCarthy, K. A.; Wikus, P.] MIT, Dept Phys, Cambridge, MA 02139 USA. [Di Stefano, P.; Fox, J.; Liu, S.; Rau, W.] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada. [Brink, P. L.; do Couto e Silva, E.; Resch, R.] SLAC Natl Accelerator Lab KIPAC, Menlo Pk, CA 94025 USA. [Reisetter, A.] St Olaf Coll, Dept Phys, Northfield, MN 55057 USA. [Young, B. A.] Santa Clara Univ, Dept Phys, Santa Clara, CA 95053 USA. [Cooley, J.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA. [Cabrera, B.; Ogburn, R. W.; Pyle, M.; Yellin, S.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Kiveni, M.; Kos, M.; Schnee, R. W.] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA. [Mahapatra, R.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA. [Daal, M.; Mirabolfathi, N.; Phipps, A.; Sadoulet, B.; Seitz, D. N.; Serfass, B.; Sundqvist, K. M.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Bunker, R.; Caldwell, D. O.; Nelson, H.; Sander, J.; Yellin, S.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Huber, M. E.] Univ Colorado, Dept Phys, Denver, CO 80217 USA. [Huber, M. E.] Univ Colorado, Dept Elect Engn, Denver, CO 80217 USA. [Balakishiyeva, D.; Saab, T.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA. [Cushman, P.; Duong, L.; Fallows, S.; Fritts, M.; Kamaev, O.; Mandic, V.; Qiu, X.; Reisetter, A.; Zhang, J.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA. [Arrenberg, S.; Baudis, L.; Bruch, T.; Tarka, M.] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland. RP Moore, D (reprint author), CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA. EM davidm@caltech.edu RI Bailey, Catherine/C-6107-2009; Huber, Martin/B-3354-2011; Yoo, Jonghee/K-8394-2016; Pyle, Matt/E-7348-2015; Qiu, Xinjie/C-6164-2012; Hall, Jeter/F-6108-2013; Liu, Sheng/K-2815-2013; Hall, Jeter/E-9294-2015 OI Pyle, Matt/0000-0002-3490-6754; Holmgren, Donald/0000-0001-6701-7737; Baudis, Laura/0000-0003-4710-1768; FU National Science Foundation [AST-9978911, PHY-0542066, PHY-0503729, PHY-0503629, PHY-0503641, PHY-0504224, PHY-0705052, PHY-0801708, PHY-0801712, PHY-0802575, PHY-0847342, PHY-0855525]; Department of Energy [DE-AC03-76SF00098, DE-FG02-91ER40688, DE-FG02-92ER40701, DE-FG03-90ER40569, DE-FG03-91ER40618]; Swiss National Foundation (SNF) [20-118119]; NSERC Canada [SAPIN 341314-07] FX The CDMS collaboration gratefully acknowledges the contributions of numerous engineers and technicians; we would like to especially thank Jim Beaty, Bruce Hines, Larry Novak, Richard Schmitt, and Astrid Tomada. In addition, we gratefully acknowledge assistance from the staff of the Soudan Underground Laboratory and the Minnesota Department of Natural Resources. This work is supported in part by the National Science Foundation (Grant Nos. AST-9978911, PHY-0542066, PHY-0503729, PHY-0503629, PHY-0503641, PHY-0504224, PHY-0705052, PHY-0801708, PHY-0801712, PHY-0802575, PHY-0847342, and PHY-0855525), by the Department of Energy (Contracts DE-AC03-76SF00098, DE-FG02-91ER40688, DE-FG02-92ER40701, DE-FG03-90ER40569, and DE-FG03-91ER40618), by the Swiss National Foundation (SNF Grant No. 20-118119), and by NSERC Canada (Grant SAPIN 341314-07). NR 45 TC 354 Z9 356 U1 8 U2 30 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 MAR 30 PY 2011 VL 106 IS 13 AR 131302 DI 10.1103/PhysRevLett.106.131302 PG 5 WC Physics, Multidisciplinary SC Physics GA 742MG UT WOS:000288947600003 PM 21517371 ER PT J AU Ocko, BM Hlaing, H Jepsen, PN Kewalramani, S Tkachenko, A Pontoni, D Reichert, H Deutsch, M AF Ocko, B. M. Hlaing, H. Jepsen, P. N. Kewalramani, S. Tkachenko, A. Pontoni, D. Reichert, H. Deutsch, M. TI Unifying Interfacial Self-Assembly and Surface Freezing SO PHYSICAL REVIEW LETTERS LA English DT Article ID LIQUID NORMAL-ALKANES; X-RAY REFLECTIVITY; CHAIN MOLECULES; MONOLAYERS; ADSORPTION; ALKANETHIOLS; TRANSITION; CRYSTAL; GROWTH AB X-ray investigations reveal that the monolayers formed at the bulk alkanol-sapphire interface are densely packed with the surface-normal molecules hydrogen bound to the sapphire. About 30-35 degrees C above the bulk, these monolayers both melt reversibly and partially desorb. This system exhibits balanced intermolecular and molecule-substrate interactions which are intermediate between self-assembled and surface-frozen monolayers, each dominated by one interaction. The phase behavior is rationalized within a thermodynamic model comprising interfacial interactions, elasticity, and entropic effects. Separating the substrate from the melt leaves the monolayer structurally intact. C1 [Ocko, B. M.; Hlaing, H.; Jepsen, P. N.; Kewalramani, S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Tkachenko, A.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Pontoni, D.; Reichert, H.] European Synchrotron Radiat Facil, F-38043 Grenoble, France. [Deutsch, M.] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel. [Deutsch, M.] Bar Ilan Univ, Inst Nanotechnol, IL-52900 Ramat Gan, Israel. RP Ocko, BM (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. EM ocko@bnl.gov RI Tkachenko, Alexei/I-9040-2012 OI Tkachenko, Alexei/0000-0003-1291-243X FU U.S. Department of Energy, Basic Energy Sciences; Materials Sciences and Engineering Division; NSLS; U.S.-Israel Binational Foundation FX Research supported by the U.S. Department of Energy, Basic Energy Sciences, by the Materials Sciences and Engineering Division (B. O., H. H., P. N. J., and S. K.) and through use of the CFN (A. T.) and the NSLS. Support by the U.S.-Israel Binational Foundation (M. D.) is greatly acknowledged. We thank the ESRF for provision of beam time and research support (D. P. and H. R.). NR 27 TC 20 Z9 20 U1 3 U2 34 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 MAR 30 PY 2011 VL 106 IS 13 AR 137801 DI 10.1103/PhysRevLett.106.137801 PG 4 WC Physics, Multidisciplinary SC Physics GA 742MG UT WOS:000288947600013 PM 21517421 ER PT J AU Rameau, JD Smedley, J Muller, EM Kidd, TE Johnson, PD AF Rameau, J. D. Smedley, J. Muller, E. M. Kidd, T. E. Johnson, P. D. TI Properties of Hydrogen Terminated Diamond as a Photocathode SO PHYSICAL REVIEW LETTERS LA English DT Article ID ELECTRON-AFFINITY; EXCITON BREAKUP; 100 SURFACE; EMISSION; PHONON; LASER AB Electron emission from the negative electron affinity (NEA) surface of hydrogen terminated, boron doped diamond in the [100] orientation is investigated using angle resolved photoemission spectroscopy (ARPES). ARPES measurements using 16 eV synchrotron and 6 eV laser light are compared and found to show a catastrophic failure of the sudden approximation. While the high energy photoemission is found to yield little information regarding the NEA, low energy laser ARPES reveals for the first time that the NEA results from a novel Franck-Condon mechanism coupling electrons in the conduction band to the vacuum. The result opens the door to the development of a new class of NEA electron emitter based on this effect. C1 [Rameau, J. D.; Smedley, J.; Kidd, T. E.; Johnson, P. D.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Muller, E. M.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Kidd, T. E.] Univ No Iowa, Cedar Falls, IA 50613 USA. RP Rameau, JD (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. RI Muller, Erik/A-9790-2008 FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; Center for Functional Nanomaterials; National Synchrotron Light Source; DOE-BES; DOE [DE-FG02-08ER41547]; Iowa Office of Energy Independence [09-IPF-11] FX We thank Philip Allen for illuminating discussions. This research was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division and performed at the Center for Functional Nanomaterials and the National Synchrotron Light Source, DOE-BES user facilities at Brookhaven National Laboratory, and by DOE Grant No. DE-FG02-08ER41547. T. E. Kidd was supported by the Iowa Office of Energy Independence Grant No. 09-IPF-11. NR 21 TC 17 Z9 17 U1 2 U2 33 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 MAR 30 PY 2011 VL 106 IS 13 AR 137602 DI 10.1103/PhysRevLett.106.137602 PG 4 WC Physics, Multidisciplinary SC Physics GA 742MG UT WOS:000288947600012 PM 21517420 ER PT J AU Randrup, J Moller, P AF Randrup, Jorgen Moeller, Peter TI Brownian Shape Motion on Five-Dimensional Potential-Energy Surfaces: Nuclear Fission-Fragment Mass Distributions SO PHYSICAL REVIEW LETTERS LA English DT Article ID ONE-BODY DISSIPATION; HEAVY; COLLISIONS; BARRIERS; DISINTEGRATION; TRANSPORT; DYNAMICS; SCISSION; ELEMENTS; URANIUM AB Although nuclear fission can be understood qualitatively as an evolution of the nuclear shape, a quantitative description has proven to be very elusive. In particular, until now, there existed no model with demonstrated predictive power for the fission-fragment mass yields. Exploiting the expected strongly damped character of nuclear dynamics, we treat the nuclear shape evolution in analogy with Brownian motion and perform random walks on five-dimensional fission potential-energy surfaces which were calculated previously and are the most comprehensive available. Test applications give good reproduction of highly variable experimental mass yields. This novel general approach requires only a single new global parameter, namely, the critical neck size at which the mass split is frozen in, and the results are remarkably insensitive to its specific value. C1 [Randrup, Jorgen] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Moeller, Peter] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Randrup, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. OI Moller, Peter/0000-0002-5848-3565 FU National Nuclear Security Administration of the U.S. Department of Energy at LANL [DE-AC52-06NA25396]; Office of Energy Research, Office of High Energy and Nuclear Physics, Nuclear Physics Division of the DOE [DE-AC02-05CH11231] FX We are grateful to K.-H. Schmidt for providing computer-readable files of the data in Ref. [28] and to L. Bonneau, H. Goutte, D. C. Hoffman, A. Iwamoto, A. J. Sierk, and R. Vogt for helpful discussions. T. Watanabe kindly extracted the (n, f) data from the ENDF/B-VII.0 data base. This work was supported by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Nuclear Physics Division of the DOE under Contract No. DE-AC02-05CH11231 (J. R.) and by the National Nuclear Security Administration of the U.S. Department of Energy at LANL under Contract No. DE-AC52-06NA25396 (P. M.). NR 35 TC 84 Z9 84 U1 0 U2 8 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 MAR 30 PY 2011 VL 106 IS 13 AR 132503 DI 10.1103/PhysRevLett.106.132503 PG 4 WC Physics, Multidisciplinary SC Physics GA 742MG UT WOS:000288947600004 PM 21517377 ER PT J AU Uhoya, WO Montgomery, JM Tsoi, GM Vohra, YK McGuire, MA Sefat, AS Sales, BC Weir, ST AF Uhoya, Walter O. Montgomery, Jeffrey M. Tsoi, Georgiy M. Vohra, Yogesh K. McGuire, M. A. Sefat, Athena S. Sales, Brian C. Weir, Samuel T. TI Phase transition and superconductivity of SrFe2As2 under high pressure SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID METAL AB High pressure x-ray diffraction and electrical resistance measurements have been carried out on SrFe2As2 to a pressure of 23 GPa and temperature of 10 K using a synchrotron source and designer diamond anvils. At ambient temperature, a phase transition from the tetragonal phase to a collapsed tetragonal (CT) phase is observed at 10 GPa under non-hydrostatic conditions. The experimental relation that T-CT transition pressure for 122 Fe-based superconductors is dependent on ambient pressure volume is affirmed. The superconducting transition temperature is observed at 32 K at 1.3 GPa and decreases rapidly with a further increase of pressure in the region where the T-CT transition occurs. Our results suggest that T-C falls below 10 K in the pressure range of 10-18 GPa where the CT phase is expected to be stable. C1 [Uhoya, Walter O.; Montgomery, Jeffrey M.; Tsoi, Georgiy M.; Vohra, Yogesh K.] Univ Alabama Birmingham UAB, Dept Phys, Birmingham, AL 35294 USA. [McGuire, M. A.; Sefat, Athena S.; Sales, Brian C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Weir, Samuel T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Uhoya, WO (reprint author), Univ Alabama Birmingham UAB, Dept Phys, Birmingham, AL 35294 USA. RI McGuire, Michael/B-5453-2009; Weir, Samuel/H-5046-2012; Uhoya, Walter/D-5476-2014; Sefat, Athena/R-5457-2016 OI McGuire, Michael/0000-0003-1762-9406; Uhoya, Walter/0000-0002-3197-7629; Sefat, Athena/0000-0002-5596-3504 FU Carnegie/Department of Energy (DOE) Alliance Center (CDAC) [DE-FC52-08NA28554]; Department of Education [P200A090143]; Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy FX Walter Uhoya acknowledges support from the Carnegie/Department of Energy (DOE) Alliance Center (CDAC) under Grant No. DE-FC52-08NA28554. Jeffery M Montgomery acknowledges support from the Department of Education Grant No. P200A090143. Research at ORNL is sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy. Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. NR 35 TC 38 Z9 38 U1 1 U2 30 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD MAR 30 PY 2011 VL 23 IS 12 AR 122201 DI 10.1088/0953-8984/23/12/122201 PG 6 WC Physics, Condensed Matter SC Physics GA 732SH UT WOS:000288209400001 PM 21389565 ER PT J AU Velisavljevic, N Chesnut, GN Stevens, LL Dattelbaum, DM AF Velisavljevic, Nenad Chesnut, Gary N. Stevens, Lewis L. Dattelbaum, Dana M. TI Effects of interstitial impurities on the high pressure martensitic alpha to omega structural transformation and grain growth in zirconium SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID CRYSTAL STRUCTURE; TRANSITION; IRON; TITANIUM; STRESS; METALS; PHASE AB Static high pressure diamond anvil cell experiments were performed on three polycrystalline Zr samples having varying interstitial impurity concentrations. Systematic increase in transition pressure with the increase in the amount of interstitial impurities is observed for the martensitic alpha ->omega structural phase transition in Zr. Significant room temperature crystal grain growth is also observed for the two highest purity samples at the alpha ->omega transition. In the case of the lowest purity sample interstitial impurities obstruct the alpha ->omega transition, while possibly helping impede grain growth-even as the sample is heated to 1279 K. C1 [Velisavljevic, Nenad; Stevens, Lewis L.; Dattelbaum, Dana M.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Chesnut, Gary N.] Univ W Georgia, Dept Phys, Carrollton, GA 30118 USA. RP Velisavljevic, N (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87544 USA. EM nenad@lanl.gov FU DOE-NNSA; DOE-BES [DE-AC02-06CH11357]; NSF; NIH/National Institute of General Medical Sciences under NSF [DMR-0225180]; US DOE [DE-AC52-06NA25396] FX A portion of this work was performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT is supported by CIW, CDAC, UNLV and LLNL through funding from DOE-NNSA, DOE-BES and NSF. APS is supported by DOE-BES, under Contract No. DE-AC02-06CH11357. Part of the work was also performed at the B2 beamline at Cornell High Energy Synchrotron Source (CHESS) which is supported by the NSF and the NIH/National Institute of General Medical Sciences under NSF award DMR-0225180. LANL is operated by LANS, LLC for the DOE-NNSA. This work was, in part, supported by the US DOE under contract # DE-AC52-06NA25396. We would also like to thank the HPCAT and CHESS beamline staff for their assistance. NR 16 TC 7 Z9 7 U1 1 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD MAR 30 PY 2011 VL 23 IS 12 AR 125402 DI 10.1088/0953-8984/23/12/125402 PG 4 WC Physics, Condensed Matter SC Physics GA 732SH UT WOS:000288209400006 PM 21386372 ER PT J AU Malace, SP Melnitchouk, W Psaker, A AF Malace, S. P. Melnitchouk, W. Psaker, A. TI Evidence for quark-hadron duality in gamma* p helicity cross sections SO PHYSICAL REVIEW C LA English DT Article ID CONSTITUENT QUARKS; ELECTROPRODUCTION; SCATTERING; NUCLEON; PION; SUM AB Combining data on unpolarized and polarized inclusive proton structure functions, we perform the first detailed study of quark-hadron duality in individual helicity-1/2 and 3/2 virtual photoproduction cross sections. We find that duality is realized more clearly in the helicity-1/2 channel, with duality-violating corrections less than or similar to 10% over the entire nucleon resonance region, while larger, less than or similar to 20% corrections are found in the helicity-3/2 sector. The results are in general agreement with quark model expectations, and suggest that data above the Delta resonance region may be used to constrain both spin-averaged and spin-dependent parton distributions. C1 [Malace, S. P.] Duke Univ, Dept Phys, Durham, NC 27708 USA. [Melnitchouk, W.] Jefferson Lab, Newport News, VA 23606 USA. [Psaker, A.] Amer Univ Nigeria, Yola, Nigeria. RP Malace, SP (reprint author), Duke Univ, Dept Phys, Durham, NC 27708 USA. FU US Department of Energy [DE-FG02-03ER41231]; DOE [DE-AC05-06OR23177] FX This work was supported by the US Department of Energy under Contract No. DE-FG02-03ER41231, and DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC operates Jefferson Lab. NR 27 TC 3 Z9 3 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD MAR 29 PY 2011 VL 83 IS 3 AR 035203 DI 10.1103/PhysRevC.83.035203 PG 6 WC Physics, Nuclear SC Physics GA 741WQ UT WOS:000288896900004 ER PT J AU Aalseth, CE Barbeau, PS Bowden, NS Cabrera-Palmer, B Colaresi, J Collar, JI Dazeley, S de Lurgio, P Fast, JE Fields, N Greenberg, CH Hossbach, TW Keillor, ME Kephart, JD Marino, MG Miley, HS Miller, ML Orrell, JL Radford, DC Reyna, D Tench, O Van Wechel, TD Wilkerson, JF Yocum, KM AF Aalseth, C. E. Barbeau, P. S. Bowden, N. S. Cabrera-Palmer, B. Colaresi, J. Collar, J. I. Dazeley, S. de Lurgio, P. Fast, J. E. Fields, N. Greenberg, C. H. Hossbach, T. W. Keillor, M. E. Kephart, J. D. Marino, M. G. Miley, H. S. Miller, M. L. Orrell, J. L. Radford, D. C. Reyna, D. Tench, O. Van Wechel, T. D. Wilkerson, J. F. Yocum, K. M. CA CoGeNT Collaboration TI Results from a Search for Light-Mass Dark Matter with a p-Type Point Contact Germanium Detector SO PHYSICAL REVIEW LETTERS LA English DT Article AB We report on several features in the energy spectrum from an ultralow-noise germanium detector operated deep underground. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss an irreducible excess of bulklike events below 3 keV in ionization energy. These could be caused by unknown backgrounds, but also dark matter interactions consistent with DAMA/LIBRA. It is not yet possible to determine their origin. Improved constraints are placed on a cosmological origin for the DAMA/LIBRA effect. C1 [Aalseth, C. E.; Fast, J. E.; Hossbach, T. W.; Keillor, M. E.; Kephart, J. D.; Miley, H. S.; Orrell, J. L.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Barbeau, P. S.; Collar, J. I.; Fields, N.; Greenberg, C. H.; Hossbach, T. W.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Barbeau, P. S.; Collar, J. I.; Fields, N.; Greenberg, C. H.; Hossbach, T. W.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Bowden, N. S.; Dazeley, S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Cabrera-Palmer, B.; Reyna, D.] Sandia Natl Labs, Livermore, CA 94550 USA. [Colaresi, J.; Tench, O.; Yocum, K. M.] CANBERRA Ind, Meriden, CT 06450 USA. [de Lurgio, P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Marino, M. G.; Miller, M. L.; Van Wechel, T. D.; Wilkerson, J. F.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. [Marino, M. G.; Miller, M. L.; Van Wechel, T. D.; Wilkerson, J. F.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Radford, D. C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA. RP Aalseth, CE (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM collar@uchicago.edu RI radford, David/A-3928-2015; Orrell, John/E-9313-2015; OI Orrell, John/0000-0001-7968-4051; Marino, Michael/0000-0003-1226-6036; Keillor, Martin/0000-0001-7828-5868; Wilkerson, John/0000-0002-0342-0217; Bowden, Nathaniel/0000-0002-6115-0956 FU NSF [PHY-0653605, PHY-0239812, PHY-0114422]; LLNL [DE-AC52-07NA27344]; Office of Nuclear Physics, U.S. DOE; DOE/NNSA [2010-1375J, LLNL-JRNL-425007] FX Work sponsored by NSF Grants No. PHY-0653605, No. PHY-0239812, No. PHY-0114422, LLNL Contract No. DE-AC52-07NA27344, LDRD programs at SNL and PNNL, and the Office of Nuclear Physics, U.S. DOE. N.F. is supported by the DOE/NNSA SSGF program SAND Number: 2010-1375J, LLNL-JRNL-425007. We owe gratitude to all personnel at the Soudan Underground Laboratory. NR 33 TC 540 Z9 547 U1 4 U2 34 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAR 29 PY 2011 VL 106 IS 13 AR 131301 DI 10.1103/PhysRevLett.106.131301 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200004 PM 21517370 ER PT J AU Cao, QH Khalil, S Ma, E Okada, H AF Cao, Qing-Hong Khalil, Shaaban Ma, Ernest Okada, Hiroshi TI Observable T-7 Lepton Flavor Symmetry at the Large Hadron Collider SO PHYSICAL REVIEW LETTERS LA English DT Article ID FAMILY SYMMETRY; DELTA(27) SYMMETRY; NEUTRINO; A(4); VIOLATION AB More often than not, models of flavor symmetry rely on the use of nonrenormalizable operators (in the guise of flavons) to accomplish the phenomenologically successful tribimaximal mixing of neutrinos. We show instead how a simple renormalizable two-parameter neutrino mass model of tribimaximal mixing can be constructed with the non-Abelian discrete symmetry T-7 and the gauging of B - L. This is also achieved without the addition of auxiliary symmetries and particles present in almost all other proposals. Most importantly, it is verifiable at the Large Hadron Collider. C1 [Cao, Qing-Hong] Argonne Natl Lab, High Energy Div, Argonne, IL 60439 USA. [Cao, Qing-Hong] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Khalil, Shaaban; Okada, Hiroshi] British Univ Egypt, Ctr Theoret Phys, El Sherouk City 11837, Egypt. [Khalil, Shaaban] Ain Shams Univ, Dept Math, Fac Sci, Cairo 11566, Egypt. [Ma, Ernest] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA. RP Cao, QH (reprint author), Argonne Natl Lab, High Energy Div, 9700 S Cass Ave, Argonne, IL 60439 USA. FU U.S. DOE [DE-AC02-06CH11357, DE-FG03-94ER40837]; Argonne National Laboratory; University of Chicago JTI [03921-07-137]; STDF 437; ICTP [30] FX The work of Q.-H. C. is supported in part by the U.S. DOE Grant No. DE-AC02-06CH11357 and in part by the Argonne National Laboratory and University of Chicago JTI Grant No. 03921-07-137. The work of S. K. and H. O. is partly supported by STDF 437 and ICTP Project 30. The work of E. M. is supported in part by the U.S. DOE Grant No. DE-FG03-94ER40837. NR 25 TC 31 Z9 31 U1 0 U2 1 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 MAR 29 PY 2011 VL 106 IS 13 AR 131801 DI 10.1103/PhysRevLett.106.131801 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200006 PM 21517373 ER PT J AU Konik, RM AF Konik, Robert M. TI Exciton Hierarchies in Gapped Carbon Nanotubes SO PHYSICAL REVIEW LETTERS LA English DT Article ID SINE-GORDON MODEL; TRANSPORT; SPECTRA; FIELDS AB We present evidence that the strong electron-electron (e-e) interactions in gapped carbon nanotubes lead to finite hierarchies of excitons within a given nanotube subband. We study these hierarchies by employing a field theoretic reduction of the gapped carbon nanotube permitting e-e interactions to be treated exactly. We analyze this reduction by employing a Wilsonian-like numerical renormalization group. We are so able to determine the gap ratios of the one-photon excitons as a function of the effective strength of interactions. We also determine within the same subband the gaps of the two-photon excitons, the single particle gaps, as well as a subset of the dark excitons. The strong e-e interactions in addition lead to strongly renormalized dispersion relations where the consequences of spin-charge separation can be readily observed. C1 [Konik, Robert M.] Brookhaven Natl Lab, Condensed Matter Phys, Upton, NY 11973 USA. [Konik, Robert M.] Brookhaven Natl Lab, Dept Mat Sci, Upton, NY 11973 USA. RP Konik, RM (reprint author), Brookhaven Natl Lab, Condensed Matter Phys, Upton, NY 11973 USA. RI Konik, Robert/L-8076-2016 OI Konik, Robert/0000-0003-1209-6890 FU U.S. DOE [DE-AC02-98 CH 10886] FX R.M.K. acknowledges support from the U.S. DOE (DE-AC02-98 CH 10886) together with helpful discussions with V. Perebeinos, M. Sfeir, and A. Tsvelik. NR 25 TC 15 Z9 15 U1 2 U2 4 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 MAR 29 PY 2011 VL 106 IS 13 AR 136805 DI 10.1103/PhysRevLett.106.136805 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200019 PM 21517408 ER PT J AU Meziane, M Brash, EJ Gilman, R Jones, MK Luo, W Pentchev, L Perdrisat, CF Puckett, AJR Punjabi, V Wesselmann, FR Ahmidouch, A Albayrak, I Aniol, KA Arrington, J Asaturyan, A Ates, O Baghdasaryan, H Benmokhtar, F Bertozzi, W Bimbot, L Bosted, P Boeglin, W Butuceanu, C Carter, P Chernenko, S Christy, E Commisso, M Cornejo, JC Covrig, S Danagoulian, S Daniel, A Davidenko, A Day, D Dhamija, S Dutta, D Ent, R Frullani, S Fenker, H Frlez, E Garibaldi, F Gaskell, D Gilad, S Goncharenko, Y Hafidi, K Hamilton, D Higinbotham, DW Hinton, W Horn, T Hu, B Huang, J Huber, GM Jensen, E Kang, H Keppel, C Khandaker, M King, P Kirillov, D Kohl, M Kravtsov, V Kumbartzki, G Li, Y Mamyan, V Margaziotis, DJ Markowitz, P Marsh, A Matulenko, Y Maxwell, J Mbianda, G Meekins, D Melnik, Y Miller, J Mkrtchyan, A Mkrtchyan, H Moffit, B Moreno, O Mulholland, J Narayan, A Nuruzzaman Nedev, S Piasetzky, E Pierce, W Piskunov, NM Prok, Y Ransome, RD Razin, DS Reimer, PE Reinhold, J Rondon, O Shabestari, M Shahinyan, A Shestermanov, K Sirca, S Sitnik, I Smykov, L Smith, G Solovyev, L Solvignon, P Subedi, R Suleiman, R Tomasi-Gustafsson, E Vasiliev, A Vanderhaeghen, M Veilleux, M Wojtsekhowski, BB Wood, S Ye, Z Zanevsky, Y Zhang, X Zhang, Y Zheng, X Zhu, L AF Meziane, M. Brash, E. J. Gilman, R. Jones, M. K. Luo, W. Pentchev, L. Perdrisat, C. F. Puckett, A. J. R. Punjabi, V. Wesselmann, F. R. Ahmidouch, A. Albayrak, I. Aniol, K. A. Arrington, J. Asaturyan, A. Ates, O. Baghdasaryan, H. Benmokhtar, F. Bertozzi, W. Bimbot, L. Bosted, P. Boeglin, W. Butuceanu, C. Carter, P. Chernenko, S. Christy, E. Commisso, M. Cornejo, J. C. Covrig, S. Danagoulian, S. Daniel, A. Davidenko, A. Day, D. Dhamija, S. Dutta, D. Ent, R. Frullani, S. Fenker, H. Frlez, E. Garibaldi, F. Gaskell, D. Gilad, S. Goncharenko, Y. Hafidi, K. Hamilton, D. Higinbotham, D. W. Hinton, W. Horn, T. Hu, B. Huang, J. Huber, G. M. Jensen, E. Kang, H. Keppel, C. Khandaker, M. King, P. Kirillov, D. Kohl, M. Kravtsov, V. Kumbartzki, G. Li, Y. Mamyan, V. Margaziotis, D. J. Markowitz, P. Marsh, A. Matulenko, Y. Maxwell, J. Mbianda, G. Meekins, D. Melnik, Y. Miller, J. Mkrtchyan, A. Mkrtchyan, H. Moffit, B. Moreno, O. Mulholland, J. Narayan, A. Nuruzzaman Nedev, S. Piasetzky, E. Pierce, W. Piskunov, N. M. Prok, Y. Ransome, R. D. Razin, D. S. Reimer, P. E. Reinhold, J. Rondon, O. Shabestari, M. Shahinyan, A. Shestermanov, K. Sirca, S. Sitnik, I. Smykov, L. Smith, G. Solovyev, L. Solvignon, P. Subedi, R. Suleiman, R. Tomasi-Gustafsson, E. Vasiliev, A. Vanderhaeghen, M. Veilleux, M. Wojtsekhowski, B. B. Wood, S. Ye, Z. Zanevsky, Y. Zhang, X. Zhang, Y. Zheng, X. Zhu, L. CA GEp2 Collaboration TI Search for Effects Beyond the Born Approximation in Polarization Transfer Observables in (e)over-right-arrow p Elastic Scattering SO PHYSICAL REVIEW LETTERS LA English DT Article ID FORM-FACTORS; PROTON AB Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, G(E)/G(M), obtained separately from cross section and polarization transfer measurements. One possible explanation for this difference is a two-photon-exchange contribution. In an effort to search for effects beyond the one-photon-exchange or Born approximation, we report measurements of polarization transfer observables in the elastic H((e) over right arrow, e' (p) over right arrow) reaction for three different beam energies at a Q(2) = 2: 5 GeV2, spanning a wide range of the kinematic parameter epsilon. The ratio R, which equals mu(p)G(E)/G(M) in the Born approximation, is found to be independent of epsilon at the 1.5% level. The epsilon dependence of the longitudinal polarization transfer component P-l shows an enhancement of (2.3 +/- 0.6)% relative to the Born approximation at large epsilon C1 [Meziane, M.; Pentchev, L.; Perdrisat, C. F.] Coll William & Mary, Williamsburg, VA 23187 USA. [Brash, E. J.; Carter, P.; Jensen, E.; Marsh, A.; Pierce, W.; Prok, Y.; Veilleux, M.] Christopher Newport Univ, Newport News, VA 23606 USA. [Brash, E. J.; Gilman, R.; Jones, M. K.; Bosted, P.; Covrig, S.; Ent, R.; Fenker, H.; Gaskell, D.; Higinbotham, D. W.; Horn, T.; Meekins, D.; Suleiman, R.; Wojtsekhowski, B. B.; Wood, S.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Gilman, R.; Kumbartzki, G.; Ransome, R. D.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Luo, W.; Hu, B.; Zhang, X.; Zhang, Y.] Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China. [Puckett, A. J. R.; Bertozzi, W.; Gilad, S.; Huang, J.; Moffit, B.] MIT, Cambridge, MA 02139 USA. [Puckett, A. J. R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Punjabi, V.; Wesselmann, F. R.; Hinton, W.] Norfolk State Univ, Norfolk, VA 23504 USA. [Ahmidouch, A.; Danagoulian, S.] N Carolina Agr & Tech State Univ, Greensboro, NC 27411 USA. [Albayrak, I.; Ates, O.; Christy, E.; Keppel, C.; Kohl, M.; Li, Y.; Ye, Z.; Zhu, L.] Hampton Univ, Hampton, VA 23668 USA. [Aniol, K. A.; Cornejo, J. C.; Margaziotis, D. J.; Moreno, O.] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA. [Arrington, J.; Hafidi, K.; Reimer, P. E.; Solvignon, P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Asaturyan, A.; Mkrtchyan, A.; Mkrtchyan, H.; Shahinyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Baghdasaryan, H.; Commisso, M.; Day, D.; Frlez, E.; Mamyan, V.; Maxwell, J.; Mulholland, J.; Rondon, O.; Shabestari, M.; Subedi, R.; Zheng, X.] Univ Virginia, Charlottesville, VA 22904 USA. [Benmokhtar, F.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Bimbot, L.; Tomasi-Gustafsson, E.] CNRS, Inst Phys Nucl, IN2P3, F-91405 Orsay, France. [Bimbot, L.; Tomasi-Gustafsson, E.] Univ Paris 11, Orsay, France. [Boeglin, W.; Dhamija, S.; Markowitz, P.; Reinhold, J.] Florida Int Univ, Miami, FL 33199 USA. [Butuceanu, C.; Huber, G. M.] Univ Regina, Regina, SK S4S 0A2, Canada. [Chernenko, S.; Kirillov, D.; Piskunov, N. M.; Razin, D. S.; Sitnik, I.; Smykov, L.; Zanevsky, Y.] JINR LHE, Dubna 141980, Moscow Region, Russia. [Daniel, A.; King, P.] Ohio Univ, Athens, OH 45701 USA. [Davidenko, A.; Goncharenko, Y.; Kravtsov, V.; Matulenko, Y.; Melnik, Y.; Shestermanov, K.; Solovyev, L.; Vasiliev, A.] IHEP, Protvino 142284, Moscow Region, Russia. [Dutta, D.; Narayan, A.; Nuruzzaman] Mississippi State Univ, Starkville, MS 39762 USA. [Frullani, S.; Garibaldi, F.] Ist Nazl Fis Nucl, Sez Sanita, I-00161 Rome, Italy. [Frullani, S.; Garibaldi, F.] Ist Super Sanita, I-00161 Rome, Italy. [Hamilton, D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland. [Kang, H.] Seoul Natl Univ, Seoul 151742, South Korea. [Mbianda, G.] Univ Witwatersrand, Johannesburg, South Africa. [Miller, J.] Univ Maryland, College Pk, MD 20742 USA. [Nedev, S.] Univ Chem Technol & Met, BU-1756 Sofia, Bulgaria. [Piasetzky, E.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel. [Sirca, S.] Jozef Stefan Inst, SI-1001 Ljubljana, Slovenia. [Tomasi-Gustafsson, E.] CEA Saclay, F-91191 Gif Sur Yvette, France. [Vanderhaeghen, M.] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany. RP Meziane, M (reprint author), Coll William & Mary, Williamsburg, VA 23187 USA. EM mezianem@jlab.org RI Arrington, John/D-1116-2012; Higinbotham, Douglas/J-9394-2014; Day, Donal/C-5020-2015; Narayan, Amrendra/Q-3243-2016; Ye, Zhihong/E-6651-2017; Rondon Aramayo, Oscar/B-5880-2013; Frlez, Emil/B-6487-2013; Reimer, Paul/E-2223-2013; Mamyan, Vahe/K-4778-2012 OI Arrington, John/0000-0002-0702-1328; Higinbotham, Douglas/0000-0003-2758-6526; Day, Donal/0000-0001-7126-8934; Narayan, Amrendra/0000-0003-3814-9559; Ye, Zhihong/0000-0002-1873-2344; FU U.S. Department of Energy; U.S. National Science Foundation; Italian Institute for Nuclear research; French Commissariat a l'Energie Atomique (CEA); Centre National de la Recherche Scientifique (CNRS); Natural Sciences and Engineering Research Council of Canada; DOE [DE-AC05-06OR23177] FX We thank the Hall C technical staff and the Jefferson Lab Accelerator Division for their outstanding support during the experiment. This work was supported in part by the U.S. Department of Energy, the U.S. National Science Foundation, the Italian Institute for Nuclear research, the French Commissariat a l'Energie Atomique (CEA), the Centre National de la Recherche Scientifique (CNRS), and the Natural Sciences and Engineering Research Council of Canada. This work is supported by DOE Contract No. DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, operates the Thomas Jefferson National Accelerator Facility. NR 32 TC 39 Z9 39 U1 1 U2 11 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 MAR 29 PY 2011 VL 106 IS 13 AR 132501 DI 10.1103/PhysRevLett.106.132501 PG 6 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200007 PM 21520982 ER PT J AU Sann, H Jahnke, T Havermeier, T Kreidi, K Stuck, C Meckel, M Schoffler, MS Neumann, N Wallauer, R Voss, S Czasch, A Jagutzki, O Weber, T Schmidt-Bocking, H Miyabe, S Haxton, DJ Orel, AE Rescigno, TN Dorner, R AF Sann, H. Jahnke, T. Havermeier, T. Kreidi, K. Stuck, C. Meckel, M. Schoeffler, M. S. Neumann, N. Wallauer, R. Voss, S. Czasch, A. Jagutzki, O. Weber, Th. Schmidt-Boecking, H. Miyabe, S. Haxton, D. J. Orel, A. E. Rescigno, T. N. Doerner, R. TI Electron Diffraction Self-Imaging of Molecular Fragmentation in Two-Step Double Ionization of Water SO PHYSICAL REVIEW LETTERS LA English DT Article ID MICROCHANNEL-PLATE DETECTOR; DOUBLE PHOTOIONIZATION; MOMENTUM SPECTROSCOPY; RECOIL-ION; RESONANCES; PHOTO AB We doubly ionize H2O by single photon absorption at 43 eV leading to H+ + OH+. A direct double ionization and a sequential process in which single ionization is followed by rapid dissociation into a proton and an autoionizing OH* are identified. The angular distribution of this delayed autoionization electron shows a preferred emission in the direction of the emitted proton. From this diffraction feature we obtain internuclear distances of 700 to 1100 a.u. at which the autoionization of the OH* occurs. The experimental findings are in line with calculations of the excited potential energy surfaces and their lifetimes. C1 [Sann, H.; Jahnke, T.; Havermeier, T.; Kreidi, K.; Stuck, C.; Meckel, M.; Schoeffler, M. S.; Neumann, N.; Wallauer, R.; Voss, S.; Czasch, A.; Jagutzki, O.; Weber, Th.; Schmidt-Boecking, H.; Doerner, R.] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany. [Miyabe, S.; Haxton, D. J.; Rescigno, T. N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Chem Sci & Ultrafast Xray Sci Lab, Berkeley, CA 94720 USA. [Orel, A. E.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. RP Sann, H (reprint author), Goethe Univ Frankfurt, Inst Kernphys, Max Von Laue Str 1, D-60438 Frankfurt, Germany. EM doerner@atom.uni-frankfurt.de RI Doerner, Reinhard/A-5340-2008; Weber, Thorsten/K-2586-2013; Schoeffler, Markus/B-6261-2008 OI Doerner, Reinhard/0000-0002-3728-4268; Weber, Thorsten/0000-0003-3756-2704; Schoeffler, Markus/0000-0001-9214-6848 FU U.S. DOE; OBES, Division of Chemical Sciences [DE-AC02-05CH11231] FX We want to thank the staff of BESSY II for experimental support. This work was funded by the Deutsche Forschungsgemeinschaft and by BMBF. R. D. acknowledges the hospitality of the Division of Chemical Sciences at LBNL during a sabbatical stay. Work at LBNL performed under the auspices of the U.S. DOE and supported by the OBES, Division of Chemical Sciences under contract DE-AC02-05CH11231. NR 20 TC 9 Z9 9 U1 0 U2 8 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 MAR 29 PY 2011 VL 106 IS 13 AR 133001 DI 10.1103/PhysRevLett.106.133001 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200009 PM 21517378 ER PT J AU Satula, W Dobaczewski, J Nazarewicz, W Rafalski, M AF Satula, W. Dobaczewski, J. Nazarewicz, W. Rafalski, M. TI Microscopic Calculations of Isospin-Breaking Corrections to Superallowed Beta Decay SO PHYSICAL REVIEW LETTERS LA English DT Article ID SYMMETRY-BREAKING; TESTS AB The superallowed beta-decay rates that provide stringent constraints on physics beyond the standard model of particle physics are affected by nuclear structure effects through isospin-breaking corrections. The self-consistent isospin- and angular-momentum-projected nuclear density functional theory is used for the first time to compute those corrections for a number of Fermi transitions in nuclei from A 10 to A = 74. The resulting leading element of the Cabibbo-Kobayashi-Maskawa matrix, vertical bar V(nd)vertical bar = 0.974 47(23), agrees well with the recent result of Towner and Hardy [Phys. Rev. C 77, 025501 (2008)]. C1 [Satula, W.; Dobaczewski, J.; Nazarewicz, W.; Rafalski, M.] Univ Warsaw, Inst Theoret Phys, Fac Phys, PL-00681 Warsaw, Poland. [Dobaczewski, J.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland. [Nazarewicz, W.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Nazarewicz, W.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RP Satula, W (reprint author), Univ Warsaw, Inst Theoret Phys, Fac Phys, Ul Hoza 69, PL-00681 Warsaw, Poland. FU Polish Ministry of Science [N N202 328234, N N202 239037]; Academy of Finland and University of Jyvaskyla; Office of Nuclear Physics, U.S. Department of Energy [DE-FG02-96ER40963]; University of Tennessee [DE-FC02-09ER41583] FX This work was supported in part by the Polish Ministry of Science under Contracts No. N N202 328234 and No. N N202 239037, Academy of Finland and University of Jyvaskyla within the FIDIPRO programme, and by the Office of Nuclear Physics, U.S. Department of Energy under Contracts No. DE-FG02-96ER40963 (University of Tennessee) and No. DE-FC02-09ER41583 (UNEDF SciDAC Collaboration). We acknowledge the CSC-IT Center for Science Ltd, Finland for the allocation of computational resources. NR 31 TC 37 Z9 37 U1 2 U2 11 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 MAR 29 PY 2011 VL 106 IS 13 AR 132502 DI 10.1103/PhysRevLett.106.132502 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200008 PM 21517376 ER PT J AU Vogel, A Kamionka, T Martens, M Drews, A Chou, KW Tyliszczak, T Stoll, H Van Waeyenberge, B Meier, G AF Vogel, Andreas Kamionka, Thomas Martens, Michael Drews, Andre Chou, Kang Wei Tyliszczak, Tolek Stoll, Hermann Van Waeyenberge, Bartel Meier, Guido TI Coupled Vortex Oscillations in Spatially Separated Permalloy Squares SO PHYSICAL REVIEW LETTERS LA English DT Article ID DOTS AB We experimentally study the magnetization dynamics of pairs of micron-sized permalloy squares coupled via their stray fields. The trajectories of the vortex cores in the Landau-domain patterns of the squares are mapped in real space using time-resolved scanning transmission x-ray microscopy. After excitation of one of the vortex cores with a short magnetic-field pulse, the system behaves like coupled harmonic oscillators. The coupling strength depends on the separation between the squares and the configuration of the vortex-core polarizations. Considering the excitation via a rotating in-plane magnetic field, it can be understood that only a weak response of the second vortex core is observed for equal core polarizations. C1 [Vogel, Andreas; Kamionka, Thomas; Martens, Michael; Drews, Andre; Meier, Guido] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany. [Vogel, Andreas; Kamionka, Thomas; Martens, Michael; Drews, Andre; Meier, Guido] Univ Hamburg, Zentrum Mikrostrukturforsch, D-20355 Hamburg, Germany. [Drews, Andre] Univ Hamburg, Arbeitsbereich Tech Informat Syst, D-22527 Hamburg, Germany. [Chou, Kang Wei; Tyliszczak, Tolek] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Stoll, Hermann] Max Planck Inst Metallforsch, D-70569 Stuttgart, Germany. [Van Waeyenberge, Bartel] Univ Ghent, Dept Solid State Sci, B-9000 Ghent, Belgium. RP Vogel, A (reprint author), Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany. EM andreas.vogel@physnet.uni-hamburg.de FU DOE, Office of Science [DE-AC02-05-CH11231] FX We thank Hyunsung Jung and Sang-Koog Kim for fruitful discussions, Ulrich Merkt for fruitful discussions and continuous support, Sebastian Wintz for providing some of his beamtime at the STXM, and Michael Volkmann for superb technical assistance. Financial support of the Deutsche Forschungsgemeinschaft via the Sonderforschungsbereich 668 and the Forschungs- und Wissenschaftsstiftung Hamburg via the Exzellenzcluster "Nano-Spintronik'' is gratefully acknowledged. Operation of the x-ray microscope is supported by the DOE, Office of Science, under Contract No. DE-AC02-05-CH11231. NR 24 TC 46 Z9 47 U1 2 U2 23 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 MAR 29 PY 2011 VL 106 IS 13 AR 137201 DI 10.1103/PhysRevLett.106.137201 PG 4 WC Physics, Multidisciplinary SC Physics GA 741XT UT WOS:000288901200024 PM 21517417 ER PT J AU Burke, BG Chan, J Williams, KA Fuhrer, T Fu, WJ Dorn, HC Puretzky, AA Geohegan, DB AF Burke, Brian G. Chan, Jack Williams, Keith A. Fuhrer, Timothy Fu, Wujun Dorn, Harry C. Puretzky, Alexander A. Geohegan, David B. TI Vibrational spectrum of the endohedral Y2C2@C-92 fullerene by Raman spectroscopy: Evidence for tunneling of the diatomic C-2 molecule SO PHYSICAL REVIEW B LA English DT Article ID IMAGING CONTRAST AGENT; WATER-SOLUBLE METALLOFULLERENES; CAGE; SINGLE; FAMILY AB The structure and vibrational spectrum of the novel endohedral fullerene Y2C2@C-92 was studied by Raman spectroscopy, with particular emphasis on the rotational transitions of the diatomic C-2 unit in the low-energy Raman spectrum. We report evidence for tunneling of this unit through the C-2 rotation plane and observe anomalous narrowing in a hindered rotational mode. We also report complementary density functional theory calculations that support our conclusions and discuss potential applications to quantum computing and nonvolatile memory devices. C1 [Burke, Brian G.; Chan, Jack; Williams, Keith A.] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. [Fuhrer, Timothy; Fu, Wujun; Dorn, Harry C.] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA. [Puretzky, Alexander A.; Geohegan, David B.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Burke, BG (reprint author), Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. EM bgb9q@virginia.edu RI Dorn, Harry/K-6830-2013; Puretzky, Alexander/B-5567-2016; Geohegan, David/D-3599-2013 OI Puretzky, Alexander/0000-0002-9996-4429; Geohegan, David/0000-0003-0273-3139 FU National Science Foundation [CHE-0443850, DMR-0507083]; National Institutes of Health [1R01-CA119371-01]; Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy FX We are grateful for support of this work by the National Science Foundation [CHE-0443850 (H. C. D.), DMR-0507083 (H. C. D.)] and the National Institutes of Health [1R01-CA119371-01 (H. C. D.)]. A portion of this research at Oak Ridge National Laboratory's Center for Nanophase Materials Science was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. NR 36 TC 7 Z9 8 U1 0 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 29 PY 2011 VL 83 IS 11 AR 115457 DI 10.1103/PhysRevB.83.115457 PG 5 WC Physics, Condensed Matter SC Physics GA 741WL UT WOS:000288896400012 ER PT J AU Baird, L Ong, CP Cole, RA Haegel, NM Talin, AA Li, QM Wang, GT AF Baird, Lee Ong, C. P. Cole, R. Adam Haegel, N. M. Talin, A. Alec Li, Qiming Wang, George T. TI Transport imaging for contact-free measurements of minority carrier diffusion in GaN, GaN/AlGaN, and GaN/InGaN core-shell nanowires SO APPLIED PHYSICS LETTERS LA English DT Article ID SEMICONDUCTOR NANOWIRES; GALLIUM NITRIDE; LENGTH; RECOMBINATION; LIFETIME AB Minority carrier diffusion lengths (L-d) are measured for GaN, GaN/AlGaN, and GaN/InGaN core-shell nanowires using a technique based on imaging of recombination luminescence. The effect of shell material on transport properties is measured. An AlGaN shell produces L-d values in excess of 1 mu m and a relative insensitivity to wire diameter. An InGaN shell reduces effective diffusion length, while a dependence of L-d on diameter is observed for uncoated nanowires. (C) 2011 American Institute of Physics. [doi:10.1063/1.3573832] C1 [Baird, Lee; Ong, C. P.; Cole, R. Adam; Haegel, N. M.] USN, Postgrad Sch, Dept Phys, Monterey, CA 93950 USA. [Talin, A. Alec] Sandia Natl Labs, Livermore, CA 94550 USA. [Li, Qiming; Wang, George T.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Haegel, NM (reprint author), USN, Postgrad Sch, Dept Phys, Monterey, CA 93950 USA. EM nmhaegel@nps.edu RI Wang, George/C-9401-2009 OI Wang, George/0000-0001-9007-0173 FU National Science Foundation [DMR 0804527]; DARPA [61101E]; U.S. DOE, Office of Basic Energy Sciences (BES) MSE Division; DOE BES; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported by National Science Foundation under Grant No. DMR 0804527 and by a grant from the Nano-MEMS program of DARPA (D. Polla, Program Manager) (Grant No. 61101E). The growth and structural characterization was funded by the U.S. DOE, Office of Basic Energy Sciences (BES) MSE Division and Sandia's Solid State Lighting Science Energy Frontier Research Center, funded by DOE BES. Sandia National Laboratories is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 25 TC 22 Z9 23 U1 3 U2 35 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR 28 PY 2011 VL 98 IS 13 AR 132104 DI 10.1063/1.3573832 PG 3 WC Physics, Applied SC Physics GA 745GJ UT WOS:000289153600037 ER PT J AU Choi, EM Patnaik, S Weal, E Sahonta, SL Mecklenburg, G Wang, H Bi, Z Xiong, J Blamire, MG Jia, QX MacManus-Driscoll, JL AF Choi, E-M Patnaik, S. Weal, E. Sahonta, S-L Mecklenburg, G. Wang, H. Bi, Z. Xiong, J. Blamire, M. G. Jia, Q. X. MacManus-Driscoll, J. L. TI Strong room temperature magnetism in highly resistive strained thin films of BiFe0.5Mn0.5O3 (vol 98, 012509, 2011) SO APPLIED PHYSICS LETTERS LA English DT Correction C1 [Choi, E-M; Patnaik, S.; Weal, E.; Sahonta, S-L; Mecklenburg, G.; Blamire, M. G.; MacManus-Driscoll, J. L.] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England. [Wang, H.; Bi, Z.] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA. [Xiong, J.; Jia, Q. X.; MacManus-Driscoll, J. L.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Choi, EM (reprint author), Univ Cambridge, Dept Mat Sci, Pembroke St, Cambridge CB2 3QZ, England. EM jld35@cam.ac.uk RI Jia, Q. X./C-5194-2008; Wang, Haiyan/P-3550-2014 OI Wang, Haiyan/0000-0002-7397-1209 NR 1 TC 2 Z9 2 U1 0 U2 11 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR 28 PY 2011 VL 98 IS 13 AR 139903 DI 10.1063/1.3565432 PG 1 WC Physics, Applied SC Physics GA 745GJ UT WOS:000289153600108 ER PT J AU Reiten, MT Chowdhury, DR Zhou, J Taylor, AJ O'Hara, JF Azad, AK AF Reiten, M. T. Chowdhury, D. Roy Zhou, J. Taylor, A. J. O'Hara, J. F. Azad, A. K. TI Resonance tuning behavior in closely spaced inhomogeneous bilayer metamaterials SO APPLIED PHYSICS LETTERS LA English DT Article ID ANTENNAS AB We have measured the interaction between closely spaced bilayer split ring resonators (SRRs) by varying separation layer and orientation. Terahertz time domain measurements match closely to simulations for arrays separated by a thin micron-scale polyimide layer. Experimental results indicate that bilayer SRRs resonances strongly depend on interlayer coupling tunable by separation and orientation. Simulation shows a relatively high Q resonance (Q approximate to 30) is associated with the "antialigned" SRR pair at separations of lambda/500. Metamaterials tuned through interlayer coupling allows resonances at frequencies lower than the natural resonance of individual SRRs which has implications for electrically small antenna design. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3566978] C1 [Reiten, M. T.; Chowdhury, D. Roy; Zhou, J.; Taylor, A. J.; O'Hara, J. F.; Azad, A. K.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Reiten, MT (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA. EM mtreiten@lanl.gov RI Roy Chowdhury, Dibakar/B-5064-2012; Zhou, Jiangfeng/D-4292-2009; OI Zhou, Jiangfeng/0000-0002-6958-3342; Azad, Abul/0000-0002-7784-7432 FU U.S. Department of Energy [DE-AC52-06NA25396]; Center for Integrated Nanotechnologies; IC FX The authors wish to acknowledge the U.S. Department of Energy (DE-AC52-06NA25396) through the LANL/LDRD Program, the Center for Integrated Nanotechnologies, and the IC Postdoctoral Research Program for support of this research. NR 16 TC 22 Z9 23 U1 1 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR 28 PY 2011 VL 98 IS 13 AR 131105 DI 10.1063/1.3566978 PG 3 WC Physics, Applied SC Physics GA 745GJ UT WOS:000289153600005 ER PT J AU Nagata, T Brorsen, K Fedorov, DG Kitaura, K Gordon, MS AF Nagata, Takeshi Brorsen, Kurt Fedorov, Dmitri G. Kitaura, Kazuo Gordon, Mark S. TI Fully analytic energy gradient in the fragment molecular orbital method SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID DENSITY-FUNCTIONAL THEORY; POLARIZABLE CONTINUUM MODEL; DYNAMICS FMO-MD; AB-INITIO; FORCE-FIELD; PROTEIN-LIGAND; ENZYME CATALYSIS; LARGE SYSTEMS; SIMULATIONS; WATER AB The Z-vector equations are derived and implemented for solving the response term due to the external electrostatic potentials, and the corresponding contribution is added to the energy gradients in the framework of the fragment molecular orbital (FMO) method. To practically solve the equations for large molecules like proteins, the equations are decoupled by taking advantage of the local nature of fragments in the FMO method and establishing the self-consistent Z-vector method. The resulting gradients are compared with numerical gradients for the test molecular systems: (H2O)(64), alanine decamer, hydrated chignolin with the protein data bank (PDB) ID of 1UAO, and a Trp-cage miniprotein construct (PDB ID: 1L2Y). The computation time for calculating the response contribution is comparable to or less than that of the FMO self-consistent charge calculation. It is also shown that the energy gradients for the electrostatic dimer approximation are fully analytic, which significantly reduces the computational costs. The fully analytic FMO gradient is parallelized with an efficiency of about 98% on 32 nodes. (C) 2011 American Institute of Physics. [doi:10.1063/1.3568010] C1 [Nagata, Takeshi; Fedorov, Dmitri G.; Kitaura, Kazuo] Natl Inst Adv Ind Sci & Technol, NRI, Tsukuba, Ibaraki 3058568, Japan. [Brorsen, Kurt; Gordon, Mark S.] US DOE, Ames Lab, Ames, IA 50011 USA. [Brorsen, Kurt; Gordon, Mark S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Kitaura, Kazuo] Kyoto Univ, Grad Sch Pharmaceut Sci, Sakyo Ku, Kyoto 6068501, Japan. RP Nagata, T (reprint author), Natl Inst Adv Ind Sci & Technol, NRI, 1-1-1 Umezono, Tsukuba, Ibaraki 3058568, Japan. EM takeshi.nagata@aist.go.jp FU MEXT, Japan; US National Science Foundation; US Department of Energy FX This work has been supported by the Next Generation Super Computing Project, Nanoscience Program (MEXT, Japan), and by a US National Science Foundation Petascale Applications grant. K. B. is supported by a US Department of Energy Computational Science Graduate Fellowship. NR 97 TC 57 Z9 57 U1 0 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD MAR 28 PY 2011 VL 134 IS 12 AR 124115 DI 10.1063/1.3568010 PG 13 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 745FN UT WOS:000289151400020 PM 21456653 ER PT J AU Yoo, S Xantheas, SS AF Yoo, Soohaeng Xantheas, Sotiris S. TI Communication: The effect of dispersion corrections on the melting temperature of liquid water SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID DENSITY-FUNCTIONAL THEORY; SPACE GAUSSIAN PSEUDOPOTENTIALS; TRANSFERABLE INTERACTION MODELS; 1ST PRINCIPLES SIMULATIONS; ICE I-H; AMBIENT CONDITIONS; COMPUTER-SIMULATION; MOLECULAR-DYNAMICS; PHASE-TRANSITION; POTENTIAL MODEL AB The melting temperature (T-m) of liquid water with the Becke-Lee-Yang-Parr (BLYP) density functional including dispersion corrections (BLYP-D) and the Thole-type, version 3 (TTM3-F) ab-initio based flexible, polarizable classical potential is reported via constant pressure and constant enthalpy (NPH) molecular dynamics simulations of an ice I-h-liquid coexisting system. Dispersion corrections to BLYP lower T-m to about 360 K, a large improvement over the value of T-m > 400 K previously obtained with the original BLYP functional under the same simulation conditions. For TTM3-F, T-m = 248 K from classical molecular dynamics simulations. (C) 2011 American Institute of Physics. [doi:10.1063/1.3573375] C1 [Yoo, Soohaeng; Xantheas, Sotiris S.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. RP Yoo, S (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, 902 Battelle Blvd,POB 999,MS K1-83, Richland, WA 99352 USA. EM sotiris.xantheas@pnl.gov RI Xantheas, Sotiris/L-1239-2015; OI Xantheas, Sotiris/0000-0002-6303-1037 FU Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Sciences, (U.S.) Department of Energy (DOE); DOE's Office of Biological and Environmental Research FX Work supported by the Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Sciences, (U.S.) Department of Energy (DOE). Battelle operates the Pacific Northwest National Laboratory for the DOE. This research was performed in part using the Molecular Science Computing Facility in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research. Additional computer resources were provided by the Office of Basic Energy Sciences at the National Energy Research Scientific Computing Center, a DOE's Office of Science user facility at Lawrence Berkeley National Laboratory. NR 50 TC 92 Z9 93 U1 1 U2 18 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD MAR 28 PY 2011 VL 134 IS 12 AR 121105 DI 10.1063/1.3573375 PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 745FN UT WOS:000289151400005 PM 21456638 ER PT J AU Young, RM Yandell, MA Neumark, DM AF Young, Ryan M. Yandell, Margaret A. Neumark, Daniel M. TI Dynamics of electron solvation in I-(CH3OH)(n) clusters (4 <= n <= 11) SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID CHARGE-TRANSFER; PHOTOELECTRON-SPECTROSCOPY; ACETONITRILE CLUSTERS; MOLECULAR-DYNAMICS; METHANOL CLUSTERS; EXCESS ELECTRONS; EXCITED-STATES; ASYMMETRIC SOLVATION; FEMTOSECOND DYNAMICS; PROBE SPECTROSCOPY AB The dynamics of electron solvation following excitation of the charge-transfer-to-solvent precursor state in iodide-doped methanol clusters, I-(CH3OH)(n=4-11), are studied with time-resolved photo-electron imaging. This excitation produces a I-(CH3OH) n-cluster that is unstable with respect to electron autodetachment and whose autodetachment lifetime increases monotonically from similar to 800 fs to 85 ps as n increases from 4 to 11. The vertical detachment energy (VDE) and width of the excited state feature in the photoelectron spectrum show complex time dependence during the lifetime of this state. The VDE decreases over the first 100-400 fs, then rises exponentially to a maximum with a similar to 1 ps time constant, and finally decreases by as much as 180 meV with timescales of 3-20 ps. The early dynamics are associated with electron transfer from the iodide to the methanol cluster, while the longer-time changes in VDE are attributed to solvent reordering, possibly in conjunction with ejection of neutral iodine from the cluster. Changes in the observed width of the spectrum largely follow those of the VDEs; the dynamics of both are attributed to the major rearrangement of the solvent cluster during relaxation. The relaxation dynamics are interpreted as a reorientation of at least one methanol molecule and the disruption and formation of the solvent network in order to accommodate the excess charge. (C) 2011 American Institute of Physics. [doi:10.1063/1.3563720] C1 [Young, Ryan M.; Yandell, Margaret A.; Neumark, Daniel M.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Neumark, Daniel M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Neumark, DM (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM dneumark@berkeley.edu RI Neumark, Daniel/B-9551-2009; OI Neumark, Daniel/0000-0002-3762-9473; Young, Ryan/0000-0002-5108-0261 FU National Science Foundation (NSF) [CHE-0649647]; DOD; (U.S.) Air Force Office of Scientific Research (US-AFOSR); National Defense Science and Engineering Graduate (NDSEG) Fellowship [32 CFR 168a] FX This work was supported by the National Science Foundation (NSF)(CHE-0649647). M.A.Y. was supported by DOD, (U.S.) Air Force Office of Scientific Research (US-AFOSR), National Defense Science and Engineering Graduate (NDSEG) Fellowship, 32 CFR 168a. The authors would like to thank Professor Knut Asmis for enlightening discussions on ion microsolvation, and Markus Niemeyer for his work with our data acquisition software. NR 74 TC 10 Z9 10 U1 1 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD MAR 28 PY 2011 VL 134 IS 12 AR 124311 DI 10.1063/1.3563720 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 745FN UT WOS:000289151400033 PM 21456666 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Bolton, TA Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Christoudias, T Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Gadfort, T Garcia-Bellido, A Gavrilov, V Gay, P Geist, W Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hossain, S Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jain, S Jamin, D Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M Love, P Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Miconi, F Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Owen, M Padilla, M Pangilinan, M Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Pol, ME Polozov, P Popov, AV Prewitt, M Price, D Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Sopczak, A Sosebee, M Soustruznik, K Spurlock, B Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Tuts, PM Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vint, P Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wimpenny, SJ Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. 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Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Christoudias, T. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Gadfort, T. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geist, W. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guo, F. Gutierrez, G. Gutierrez, P. 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Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Sopczak, A. Sosebee, M. Soustruznik, K. Spurlock, B. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vint, P. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wimpenny, S. J. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Search for W H associated production in 5.3 fb(-1) of p(p)over-bar collisions at the Fermilab Tevatron SO PHYSICS LETTERS B LA English DT Article DE Tevatron; Standard Model; Higgs boson; Electroweak symmetry breaking ID MODEL HIGGS-BOSON; STANDARD MODEL; ROOT-S=1.96 TEV; DETECTOR AB We present a search for associated production of Higgs and W bosons in p (p) over bar collisions at a center of mass energy of root s = 1.96 TeV in 5.3 fb(-1) of integrated luminosity recorded by the DO experiment. Multivariate analysis techniques are applied to events containing one lepton, an imbalance in transverse energy, and one or two b-tagged jets to discriminate a potential WH signal from Standard Model backgrounds. We observe good agreement between data and expected backgrounds, and set an upper limit of 4.5 (at 95% confidence level and for m(H) = 115 GeV) on the ratio of the WH cross section multiplied by the branching fraction of H -> b (b) over bar to its Standard Model prediction, which is consistent with an expected limit of 4.8. (C) 2011 Elsevier B.V. All rights reserved. C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia. [Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Alves, G. A.; Maciel, A. K. A.; Pol, M. -E.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. 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[Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. 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[Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI Wimpenny, Stephen/K-8848-2013; Fisher, Wade/N-4491-2013; De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Alves, Gilvan/C-4007-2013; Yip, Kin/D-6860-2013; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012 OI Williams, Mark/0000-0001-5448-4213; Price, Darren/0000-0003-2750-9977; Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne, Camille/0000-0003-2368-2617; Wimpenny, Stephen/0000-0003-0505-4908; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Yip, Kin/0000-0002-8576-4311; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI (Russia); Rosatom (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP (Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF (Korea); KOSEF (Korea); CONICET (Argentina); UBACyT (Argentina); FOM (The Netherlands); STFC (United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic); GACR (Czech Republic); CRC Program (Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS (China); CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India): Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 46 TC 18 Z9 18 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD MAR 28 PY 2011 VL 698 IS 1 BP 6 EP 13 DI 10.1016/j.physletb.2011.02.036 PG 8 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 744YR UT WOS:000289131600002 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L Cerny, K De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Adler, V Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Wickens, J Costantini, S Grunewald, M Klein, B Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L De Jeneret, JD Delaere, C Demin, P Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Damiao, DD Pol, ME Souza, MHG Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A Dias, FA Dias, MAF Tomei, TRFP Gregores, EM Marinho, F Novaes, SF Padula, SS Darmenov, N Dimitrov, L Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vankov, I Dyulendarova, M Hadjiiska, R Kozhuharov, V Litov, L Marinova, E Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS 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Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Besson, A Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chanon, N Chierici, R Contardo, D Depasse, P El Mamouni, H Falkiewicz, A Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Xiao, H Roinishvili, V Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M 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Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Asaadi, J. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Nguyen, C. N. Osipenkov, I. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Bardak, C. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Mane, P. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Johns, W. Kurt, R. Maguire, C. Melo, A. Sheldon, P. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Buehler, M. Conetti, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, R. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Lomidze, D. Loveless, R. Mohapatra, A. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Search for a heavy gauge boson W ' in the final state with an electron and large missing transverse energy in pp collisions at root s=7 TeV SO PHYSICS LETTERS B LA English DT Article DE CMS; Physics; Particle physics; LHC ID VIOLATION; SYMMETRY AB A search for a heavy gauge boson W' has been conducted by the CMS experiment at the LHC in the decay channel with an electron and large transverse energy imbalance E-T(miss), using proton-proton collision data corresponding to an integrated luminosity of 36 pb(-1). No excess above standard model expectations is seen in the transverse mass distribution of the electron-E-T(miss) system. Assuming standard-model-like couplings and decay branching fractions, a W' boson with a mass less than 1.36 TeV/c(2) is excluded at 95% confidence level. 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Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Glushkov, I.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Parenti, A.; Raspereza, A.; Raval, A.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Stein, M.; Tomaszewska, J.; Volyanskyy, D.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Srivastava, A. K.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Wolf, R.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, S. M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -R; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.; Pasztor, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Sharma, R.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Studies Theoret Phys & Math IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] INFN Sez Bari, Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.] INFN Sez Bologna, Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] INFN Sez Catania, Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] INFN Sez Firenze, Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Fabbri, F.; Benussi, L.; Bianco, S.; Colafranceschi, S.; Piccolo, D.] INFN Lab Nazl Frascati, Frascati, Italy. [Fabbricatore, P.; Musenich, R.] INFN Sez Genova, Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] INFN Sez Milano Biccoca, Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] INFN Sez Napoli, Naples, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Maron, G.; Meneguzzo, A. T.; Nespolo, M.; Passaseo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] INFN Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Gresele, A.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] INFN Sez Pavia, Pavia, Italy. [Baesso, P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] INFN Sez Perugia, Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] INFN Sez Roma, Rome, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] INFN Sez Torino, Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Ambroglini, F.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] INFN Sez Trieste, Trieste, Italy. [Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla Valdez, H.; De La Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Allfrey, P.; Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Finger, M., Jr.; Finger, M.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, R.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 11001, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De La Cruz, B.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Ruiz Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, Inst Fis Cantabria IFCA, CSIC, E-39005 Santander, Spain. [Hammer, J.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Panagiotou, A.; Hajdu, C.; Mohanty, A. K.; Lusito, L.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; Perrozzi, L.; Lucaroni, A.; Boccali, T.; Tonelli, G.; Venturi, A.; Pandolfi, F.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Varela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Ramos, F. Duarte; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hesketh, G.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Karavakis, E.; Lecoq, P.; Leonidopoulos, C.; Lourenco, C.; Macpherson, A.; Maeki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. I.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Sharma, V.; Hall-Wilton, R.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland. [Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] NTU, Taipei, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Borgia, M. A.; Breedon, R.; Sanchez, M. Calderon De La Barca; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Luthra, A.; Nguyen, H.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, R.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kim, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, R.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Cu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Osipenkov, I.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, R.; Maguire, C.; Melo, A.; Sheldon, P.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, R.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Lomidze, D.; Loveless, R.; Mohapatra, A.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. 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EM Roberto.Tenchini@cern.ch RI Tinoco Mendes, Andre David/D-4314-2011; Hektor, Andi/G-1804-2011; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Mignerey, Alice/D-6623-2011; Ganjour, Serguei/D-8853-2011; Ruiz, Alberto/E-4473-2011; Stahl, Achim/E-8846-2011; Bolton, Tim/A-7951-2012; Yang, Fan/B-2755-2012; Krammer, Manfred/A-6508-2010; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; de Jesus Damiao, Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Rolandi, Luigi (Gigi)/E-8563-2013; Katkov, Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Servoli, Leonello/E-6766-2012; Tomei, Thiago/E-7091-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; 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Sguazzoni, Giacomo/J-4620-2015; Ligabue, Franco/F-3432-2014; Fassi, Farida/F-3571-2016; Varela, Joao/K-4829-2016; OI Tinoco Mendes, Andre David/0000-0001-5854-7699; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Ruiz, Alberto/0000-0002-3639-0368; Stahl, Achim/0000-0002-8369-7506; Krammer, Manfred/0000-0003-2257-7751; Dudko, Lev/0000-0002-4462-3192; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Katkov, Igor/0000-0003-3064-0466; Servoli, Leonello/0000-0003-1725-9185; Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Wimpenny, Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; 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Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Sznajder, Andre/0000-0001-6998-1108; Vilela Pereira, Antonio/0000-0003-3177-4626; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo, Davide/0000-0002-4463-0878; Vieira de Castro Ferreira da Silva, Pedro Manuel/0000-0002-5725-041X; Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Lloret Iglesias, Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146; Faccioli, Pietro/0000-0003-1849-6692; Heath, Helen/0000-0001-6576-9740; Giubilato, Piero/0000-0003-4358-5355; Gallinaro, Michele/0000-0003-1261-2277; Tabarelli de Fatis, Tommaso/0000-0001-6262-4685; Lenzi, Piergiulio/0000-0002-6927-8807; Raval, Amita/0000-0003-0164-4337; Torassa, Ezio/0000-0003-2321-0599; Sogut, Kenan/0000-0002-9682-2855 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (United Kingdom); DOE (USA); NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 24 TC 21 Z9 21 U1 1 U2 34 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD MAR 28 PY 2011 VL 698 IS 1 BP 21 EP 39 DI 10.1016/j.physletb.2011.02.048 PG 19 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 744YR UT WOS:000289131600004 ER PT J AU Voronov, DL Anderson, EH Cambie, R Cabrini, S Dhuey, SD Goray, LI Gullikson, EM Salmassi, F Warwick, T Yashchuk, VV Padmore, HA AF Voronov, D. L. Anderson, E. H. Cambie, R. Cabrini, S. Dhuey, S. D. Goray, L. I. Gullikson, E. M. Salmassi, F. Warwick, T. Yashchuk, V. V. Padmore, H. A. TI A 10,000 groove/mm multilayer coated grating for EUV spectroscopy SO OPTICS EXPRESS LA English DT Article ID X-RAY-SCATTERING AB Ultra-high spectral resolution in the EUV and soft x-ray energy ranges requires the use of very high line density gratings with optimal design resulting in use of a Blazed Multilayer Grating (BMG) structure. Here we demonstrate the production of near-atomically perfect Si blazed substrates with an ultra-high groove density (10,000 l/mm) together with the measured and theoretical performance of an Al/Zr multilayer coating on the grating. A 1(st) order absolute efficiency of 13% and 24.6% was achieved at incidence angles of 11 degrees and 36 degrees respectively. Cross-sectional TEM shows the effect of smoothing caused by the surface mobility of deposited atoms and we correlate this effect with a reduction in peak diffraction efficiency. This work shows the high performance that can be achieved with BMGs based on small-period anisotropic etched Si substrates, but also the constraints imposed by the surface mobility of deposited species. (C) 2011 Optical Society of America C1 [Voronov, D. L.; Anderson, E. H.; Cambie, R.; Dhuey, S. D.; Gullikson, E. M.; Salmassi, F.; Warwick, T.; Yashchuk, V. V.; Padmore, H. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Goray, L. I.] RAS, St Petersburg Acad Univ, St Petersburg 194021, Russia. [Goray, L. I.] RAS, Inst Analyt Instrumentat, St Petersburg 190103, Russia. RP Voronov, DL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM dlvoronov@lbl.gov RI Goray, Leonid/D-4426-2013 OI Goray, Leonid/0000-0002-0381-9607 FU U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the U.S. Department of Energy under contract number DE-AC02-05CH11231. NR 10 TC 13 Z9 13 U1 1 U2 14 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD MAR 28 PY 2011 VL 19 IS 7 BP 6328 EP 6333 DI 10.1364/OE.19.006328 PG 6 WC Optics SC Optics GA 741GR UT WOS:000288852700064 ER PT J AU Wang, SZ Wang, LW AF Wang, Shuzhi Wang, Lin-Wang TI Charge flow model for atomic ordering in nonisovalent alloys SO PHYSICAL REVIEW B LA English DT Article ID SOLID-SOLUTION; VISIBLE-LIGHT; ELECTRONIC-PROPERTIES; SEMICONDUCTOR ALLOYS; DISORDER TRANSITION; ENERGY; PHASE; PHOTOCATALYST; LATTICE; WATER AB Nonisovalent alloys, also known as aliovalent alloys, are formed by mixing two semiconductors of different valences for both cations and anions. These alloys exhibit many interesting properties and have found applications in optoelectronics, refractory materials, photovoltaics, photocatalytic splitting of water, etc. For example, the alloy of GaN and ZnO has a surprisingly large band gap bowing, enabling visible light absorption and overall water splitting at a record quantum efficiency. The understanding of the properties of nonisovalent alloys, however, is hindered by the lack of knowledge of the detailed atomic structures. We recently developed a charge flow model which can predict the total energy of different atomic configurations of nonisovalent alloys. In this work, we extend this model and apply it to a number of alloy systems-GaN/ZnO, GaAs/ZnSe, InP/CdS, AlN/ZnO, AlN/MgO, and AlN/SiC in wurtzite, zinc blende, and/or rocksalt structures. Good agreement between the model-predicted and ab initio results is found. We also employ the charge flow model in parallel tempering Monte Carlo simulations to calculate the thermodynamic properties of nonisovalent alloys of wurtzite structure. A phase transition between the phase separated and alloying regions is found and a general phase diagram is obtained. This model could be used to guide the design and synthesis of new nonisovalent alloy materials. C1 [Wang, Shuzhi; Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Wang, SZ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Mail Stop 66,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM swang2@lbl.gov RI Dom, Rekha/B-7113-2012 FU Office of Science, Office of Basic Energy Sciences, Materials Science and Engineering Division, U.S. Department of Energy (DOE) [DE-AC02-05CH11231] FX This work was performed at the Helios Solar Energy Research Center, which is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Science and Engineering Division, U.S. Department of Energy (DOE) under Contract No. DE-AC02-05CH11231. This research used the computational resources of the National Energy Research Scientific Computing Center (NERSC) and the National Center for Computational Sciences (NCCS), with computational time allocated by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) project of the DOE. NR 46 TC 4 Z9 4 U1 1 U2 25 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 28 PY 2011 VL 83 IS 11 AR 115208 DI 10.1103/PhysRevB.83.115208 PG 11 WC Physics, Condensed Matter SC Physics GA 741HQ UT WOS:000288855200006 ER PT J AU Aaltonen, T Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bauer, G Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Binkley, M Bisello, D Bizjak, I Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brau, B Brigliadori, L Brisuda, A Bromberg, C Brucken, E Bucciantonio, M Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Calancha, C Camarda, S Campanelli, M Campbell, M Canelli, F Canepa, A Carls, B Carlsmith, D Carosi, R Carrillo, S Carron, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Chung, WH Chung, YS Ciobanu, CI Ciocci, MA Clark, A Compostella, G Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Dagenhart, D d'Ascenzo, N Datta, M de Barbaro, P De Cecco, S De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M Devoto, F d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Dorigo, M Dorigo, T Ebina, K Elagin, A Eppig, A Erbacher, R Errede, D Errede, S Ershaidat, N Eusebi, R Fang, HC Farrington, S Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Funakoshi, Y Furic, I Gallinaro, M Galyardt, J Garcia, JE Garfinkel, AF Garosi, P Gerberich, H Gerchtein, E Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Ginsburg, CM Giokaris, N Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldin, D Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Gresele, A Grinstein, S Grosso-Pilcher, C Group, RC da Costa, JG Gunay-Unalan, Z Haber, C Hahn, SR Halkiadakis, E Hamaguchi, A Han, JY Happacher, F Hara, K Hare, D Hare, M Harr, RF Hatakeyama, K Hays, C Heck, M Heinrich, J Herndon, M Hewamanage, S Hidas, D Hocker, A Hopkins, W Horn, D Hou, S Hughes, RE Hurwitz, M Husemann, U Hussain, N Hussein, M Huston, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Junk, TR Kamon, T Karchin, PE Kato, Y Ketchum, W Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirby, M Klimenko, S Kondo, K Kong, DJ Konigsberg, J Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kuhr, T Kurata, M Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G 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Takemasa, K Takeuchi, Y Tang, J Tecchio, M Teng, PK Thom, J Thome, J Thompson, GA Thomson, E Ttito-Guzman, P Tkaczyk, S Toback, D Tokar, S Tollefson, K Tomura, T Tonelli, D Torre, S Torretta, D Totaro, P Trovato, M Tu, Y Ukegawa, F Uozumi, S Varganov, A Vazquez, F Velev, G Vellidis, C Vidal, M Vila, I Vilar, R Vizan, J Vogel, M Volpi, G Wagner, P Wagner, RL Wakisaka, T Wallny, R Wang, SM Warburton, A Waters, D Weinberger, M Wester, WC Whitehouse, B Whiteson, D Wicklund, AB Wicklund, E Wilbur, S Wick, F Williams, HH Wilson, JS Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, H Wright, T Wu, X Wu, Z Yamamoto, K Yamaoka, J Yang, T Yang, UK Yang, YC Yao, WM Yeh, GP Yi, K Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Yu, SS Yun, JC Zanetti, A Zeng, Y Zucchelli, S AF Aaltonen, T. 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Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shreyber, I. Simonenko, A. Sinervo, P. Sissakian, A. Sliwa, K. Smith, J. R. Snider, F. D. Soha, A. Somalwar, S. Sorin, V. Squillacioti, P. Stancari, M. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Tu, Y. Ukegawa, F. Uozumi, S. Varganov, A. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vizan, J. Vogel, M. Volpi, G. Wagner, P. Wagner, R. L. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Wick, F. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamaoka, J. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zucchelli, S. TI Observation of B-s(0) -> J/psi K*(892)(0) and B-s(0) -> J/psi K-S(0) decays SO PHYSICAL REVIEW D LA English DT Article ID CDF; DETECTOR; UPGRADE; PACKAGE; SYSTEM AB We report the first observation of two Cabibbo-suppressed decay modes of the B-s(0) meson. Using a sample of p (p) over bar collisions at root s = 1.96 TeV corresponding to 5: 9 fb(-1) of integrated luminosity collected with the CDF II, the collider detector at the Fermilab Tevatron, we search for new B-s(0) decay modes in a sample of events containing J/psi -> mu(+)mu(-) decays. We reconstruct a B-s(0) -> J/psi K*(892)(0) 0 signal with K*(892)(0) -> K+ pi(-), observing a yield of 151 +/- 25 events with a statistical significance of 8.0 sigma. We also reconstruct a B-s(0) -> J/psi K-s(0) signal with K-s(0) -> pi(+)pi(-) , observing a yield of 64 +/- 14 events with a statistical significance of 7.2 sigma. From these yields, we extract the branching ratios B(B-s(0) -> J/psi K* (892)(0) = (8.3 +/- 3.8) X 10(-5) and B(B-s(0) -> J/psi K-0) = (3.5 +/- 0.8) X 10(-5), where statistical, systematic, and fragmentation-fraction uncertainties are included in the combined uncertainty. C1 [Chen, Y. C.; Hou, S.; Mitra, A.; Mondragon, M. N.; Teng, P. K.; Vazquez, F.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [LeCompte, T.; Nodulman, L.; Paramonov, A. A.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.; Vellidis, C.] Univ Athens, GR-15771 Athens, Greece. 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RI Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Scodellaro, Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Garcia, Jose /H-6339-2015; Cavalli-Sforza, Matteo/H-7102-2015; ciocci, maria agnese /I-2153-2015; Chiarelli, Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; Ruiz, Alberto/E-4473-2011; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013 OI Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Scodellaro, Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; Ruiz, Alberto/0000-0002-3639-0368; Warburton, Andreas/0000-0002-2298-7315; Moon, Chang-Seong/0000-0001-8229-7829; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; Korean World Class University; National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, UK; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio 2010, Spain; Slovak RD Agency; Academy of Finland FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland. NR 25 TC 9 Z9 9 U1 2 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD MAR 28 PY 2011 VL 83 IS 5 AR 052012 DI 10.1103/PhysRevD.83.052012 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 741IE UT WOS:000288856600001 ER PT J AU Aad, G Abbott, B Abdallah, J Abdelalim, AA Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, BS Adams, DL Addy, TN Adelman, J Aderholz, M Adomeit, S Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, JA Aharrouche, M Ahlen, SP Ahles, F Ahmad, A Ahsan, M Aielli, G Akdogan, T Akesson, TPA Akimoto, G Akimov, AV Alam, MS Alam, MA Albrand, S Aleksa, M Aleksandrov, IN Aleppo, M Alessandria, F Alexa, C Alexander, G Alexandre, G Alexopoulos, T Alhroob, M Aliev, M Alimonti, G Alison, J Aliyev, M Allport, PP Allwood-Spiers, SE Almond, J Aloisio, A Alon, R Alonso, A Alviggi, MG Amako, K Amaral, P Amelung, C Ammosov, VV Amorim, A Amoros, G Amram, N Anastopoulos, C Andeen, T Anders, CF Anderson, KJ Andreazza, A Andrei, V Andrieux, ML Anduaga, XS Angerami, A 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CA ATLAS Collaboration TI Search for Supersymmetry Using Final States with One Lepton, Jets, and Missing Transverse Momentum with the ATLAS Detector in root s=7 TeV pp Collisions SO PHYSICAL REVIEW LETTERS LA English DT Article ID SUPERGAUGE TRANSFORMATIONS; LOCAL SUPERSYMMETRY; GRAND UNIFICATION; MODEL; FB(-1); PIONS AB This Letter presents the first search for supersymmetry in final states containing one isolated electron or muon, jets, and missing transverse momentum from root s = 7 TeV proton-proton collisions at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of 35 pb(-1). No excess above the standard model background expectation is observed. Limits are set on the parameters of the minimal supergravity framework, extending previous limits. Within this framework, for A(0) = 0 GeV, tan beta = 3, and mu > 0 and for equal squark and gluino masses, gluino masses below 700 GeV are excluded at 95% confidence level. 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A.; Panes, B.; Quinonez, F.; Romero Maltrana, D.; Urrejola, P.] Catholic Univ Chile, Dept Fis, Santiago, Chile. [Brooks, W. K.; Kuleshov, S.; Oyarzun, A.; Pezoa, R.; Prokoshin, F.] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile. [Bai, Y.; Cheng, S.; Han, H.; Jin, S.; Lu, F.; Ouyang, Q.; Shan, L. Y.; Tong, G.; Xie, Y.; Xu, G.; Yang, Y.; Yu, J.; Yuan, L.; Zheng, S.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China. [D'Orazio, A.; Han, L.; Jiang, Y.; Jin, G.; Li, S.; Liu, M.; Liu, Y.; Wu, Y.; Xu, C.; Zhao, Z.] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China. [Bocci, A.; Chen, S.; Chen, T.; Ping, J.; Zhong, J.] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China. [Feng, C.; Ge, P.; He, M.; Liu, D.; Meng, Z.; Miao, J.; Wang, J.; Zhang, X.; Zhu, C. G.] Shandong Univ, High Energy Phys Grp, Jinan, Shandong, Peoples R China. [Busato, E.; Calvet, D.; Calvet, S.; Toro, R. Camacho; Cinca, D.; Febbraro, R.; Ghodbane, N.; Gris, P. L. 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[Boelaert, N.; Dam, M.; Driouichi, C.; Facius, K.; Hansen, J. R.; Hansen, J. B.; Hansen, J. D.; Hansen, P. H.; Heisterkamp, S.; Jakobsen, S.; Jez, P.; Joergensen, M. D.; Kadlecik, P.; Klinkby, E. B.; Lundquist, J.; Mackeprang, R.; Mehlhase, S.; Petersen, T. C.; Rensch, B.; Simonyan, M.; Xella, S.] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark. [Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Ist Nazl Fis Nucl, Grp C0ll Cosenza, Cosenza, Italy. [Capua, M.; Crosetti, G.; Fazio, S.; La Rotonda, L.; Mastroberardino, A.; Morello, G.; Salvatore, D.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy. [Ciba, K.; Dabrowski, W.; Dwuznik, M.; Idzik, M.; Jelen, K.; Kisielewska, D.; Koperny, S.; Kowalski, T. Z.; Mindur, B.; Rulikowska-Zarebska, E.; Toczek, B.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland. [Banas, E.; Blocki, J.; de Renstrom, P. A. Bruckman; Derendarz, D.; Gornicki, E.; Hajduk, Z.; Iwanski, W.; Kaczmarska, A.; Korcyl, K.; Malecki, Pa.; Malecki, P.; Olszewski, A.; Olszowska, J.; Richter-Was, E.; Trzupek, A.; Turala, M.; Wolter, M. W.; Wosiek, B. K.; Zemla, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland. [Daya, R. K.; Yagci, K. Dindar; Firan, A.; Goldin, D.; Hadavand, H. K.; Hoffman, J.; Ilchenko, Y.; Ishmukhametov, R.; Joffe, D.; Kama, S.; Kasmi, A.; Kehoe, R.; Liang, Z.; Lu, L.; Renkel, P.; Rios, R. R.; Stroynowski, R.; Ye, J.; Zarzhitsky, P.] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA. [Ahsan, M.; Galyaev, E.; Izen, J. M.; Lou, X.; Reeves, K.] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA. [Bechtle, P.; Kuutmann, E. Bergeaas; Boehler, M.; Ehrenfeld, W.; Ferrara, V.; Fischer, G.; Glazov, A.; Goebel, M.; Fajardo, L. S. Gomez; Gosdzik, B.; Gregor, I. M.; Hiller, K. H.; Hristova, I.; Husemann, U.; Belenguer, M. 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[Bunse, M.; Dobos, D.; Gossling, C.; Hirsch, F.; Klaiber-Lodewigs, J.; Klingenberg, R.; Krasel, O.; Mass, M.; Muenstermann, D.; Rajek, S.; Reisinger, I.; Walbersloh, J.; Weber, J.; Wunstorf, R.] Tech Univ Dortmund, Inst Expt Phys 4, Dortmund, Germany. [Goepfert, T.; Kar, D.; Kobel, M.; Leonhardt, K.; Ludwig, A.; Mader, W. F.; Prudent, X.; Schwierz, R.; Seifert, F.; Steinbach, P.; Straessner, A.; Vest, A.] Tech Univ Dresden, Inst Kern & Teilchenphys, Dresden, Germany. [Arce, A. T. H.; Benjamin, D. P.; Bocci, A.; Ebenstein, W. L.; Fowler, A. J.; Ko, B. R.; Oh, S. H.; Wang, C.; Yamaoka, J.] Duke Univ, Dept Phys, Durham, NC 27706 USA. [Bhimji, W.; Buckley, A. G.; Clark, P. J.; O'Brien, B. J.; Wynne, B. M.] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh, Midlothian, Scotland. [Griesmayer, E.] Fachhochschule Wiener Neustadt, Wiener Neustadt, Austria. [Annovi, A.; Antonelli, M.; Bilokon, H.; Cerutti, F.; Curatolo, M.; Esposito, B.; Ferrer, M. 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[Barberis, D.; Caso, C.; Coccaro, A.; Cornelissen, T.; Cuneo, S.; Dameri, M.; Parodi, A. Ferretto; Gagliardi, G.; Osculati, B.; Parodi, F.; Schiavi, C.] Univ Genoa, Dipartimento Fis, Genoa, Italy. [Chikovani, L.; Djobava, T.; Khubua, J.; Magradze, E.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Tbilisi State Univ, GE-380086 Tbilisi, Rep of Georgia. [Chikovani, L.; Djobava, T.; Khubua, J.; Magradze, E.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Georgian Acad Sci, HEP Inst, GE-380060 Tbilisi, Rep of Georgia. [Chikovani, L.; Djobava, T.; Khubua, J.; Magradze, E.; Mchedlidze, G.; Mosidze, M.; Tskhadadze, E. G.] Georgian Acad Sci, Inst Phys, GE-380077 Tbilisi, Rep of Georgia. [Astvatsatourov, A.; Duren, M.; Stenzel, H.] Univ Giessen, Inst Phys 2, D-6300 Giessen, Germany. [Allwood-Spiers, S. E.; Bates, R. L.; Britton, D.; Bussey, P.; Buttar, C. M.; Collins-Tooth, C.; D'Auria, S.; Doherty, T.; Doyle, A. 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A.; Donini, J.; Dzahini, D.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.] Inst Natl Polytech Grenoble, F-38031 Grenoble, France. [Albrand, S.; Andrieux, M-L.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; de Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.] CNRS, IN2P3, Grenoble, France. [Albrand, S.; Andrieux, M-L.; Clement, B.; Collot, J.; Crepe-Renaudin, S.; de Saintignon, P.; Delsart, P. A.; Donini, J.; Dzahini, D.; Hostachy, J-Y.; Laisne, E.; Ledroit-Guillon, F.; Lleres, A.; Lucotte, A.; Malek, F.; Martin, Ph.; Polci, F.; Stark, J.; Sun, X.; Trocme, B.] Univ Grenoble 1, Lab Phys Subatom & Cosmol, Grenoble, France. [Addy, T. N.; Harvey, A.; McFarlane, K. W.; Shin, T.; Vassilakopoulos, V. I.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA. [Astvatsatourov, A.; da Costa, J. Barreiro Guimaraes; Belloni, A.; Brandenburg, G. W.; Franklin, M.; Hurst, P.; Huth, J.; Jeanty, L.; Kagan, M.; Outschoorn, V. Martinez; Mercurio, K. M.; Mills, C.; Moed, S.; Morii, M.; Prasad, S.; Smith, B. C.; della Porta, G. Zevi] Harvard Univ, Lab Particle Phys & Cosmol, Cambridge, MA 02138 USA. [Andrei, V.; Childers, J. T.; Dietzsch, T. A.; Fohlisch, F.; Geweniger, C.; Hanke, P.; Henke, M.; Khomich, A.; Kluge, E. -E.; Lendermann, V.; Meier, K.; Mueller, F.; Poddar, S.; Scharf, V.; Schultz-Coulon, H. -C.; Stamen, R.; Wessels, M.] Heidelberg Univ, Kirchhoff Inst Physik, Heidelberg, Germany. [Radescu, V.; Schaetzel, S.; Schoening, A.] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany. [Kugel, A.; Maenner, R.; Schroer, N.] Heidelberg Univ, ZITI Inst Tech Informat, D-6800 Mannheim, Germany. [Ohsugi, T.] Hiroshima Univ, Fac Sci, Hiroshima 730, Japan. [Nagasaka, Y.] Hiroshima Inst Technol, Fac Appl Informat Sci, Hiroshima, Japan. [Brunet, S.; Cwetanski, P.; Evans, H.; Gagnon, P.; Jain, V.; Luehring, F.; Marino, C. P.; Ogren, H.; Penwell, J.; Price, D.; Rust, D. R.; Whittington, D.; Yang, Y.; Zieminska, D.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Epp, B.; Jussel, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.] Leopold Franzens Univ, Inst Astro & Teilchenphys, Innsbruck, Austria. [Behera, P. K.; Limper, M.; Mallik, U.; Zaidan, R.] Univ Iowa, Iowa City, IA USA. [Cochran, J.; Dudziak, F.; Lebedev, A.; Mete, A. S.; Meyer, W. T.; Nelson, A.; Prell, S.; Rosenberg, E. I.; Ruiz-Martinez, A.; Triplett, N.; Yamamoto, K.] Iowa State Univ, Dept Phys & Astron, Ames, IA USA. [Aleksandrov, I. N.; Barashkou, A.; Bardin, D. Y.; Bednyakov, V. A.; Boyko, I. R.; Budagov, I. A.; Chelkov, G. A.; Cheplakov, A.; Chepurnov, V. F.; Chizhov, M. V.; Dedovich, D. V.; Demichev, M.; Glonti, G. L.; Gostkin, M. I.; Grigalashvili, N.; Gusakov, Y.; Huseynov, N.; Kalinovskaya, L. V.; Kazarinov, M. Y.; Kekelidze, G. D.; Kharchenko, D.; Khovanskiy, N.; Khramov, E.; Kolesnikov, V.; Kotov, V. M.; Kruchonak, U.; Krumshteyn, Z. V.; Kukhtin, V.; Ladygin, E.; Lazarev, A. B.; Malyukov, S.; Manjavidze, I. D.; Minashvili, I. A.; Mineev, M.; Nikolaev, K.; Olchevski, A. G.; Peshekhonov, V. D.; Romanov, V. M.; Rumyantsev, L.; Rusakovich, N. A.; Sadykov, R.; Sisakyan, A. N.; Topilin, N. D.; Vinogradov, V. B.; Zhemchugov, A.] JINR Dubna, Joint Inst Nucl Res, Dubna, Russia. [Amako, K.; Arai, Y.; Doi, Y.; Haruyama, T.; Ikegami, Y.; Ikeno, M.; Ishii, K.; Ishino, M.; Iwasaki, H.; Kanzaki, J.; Kohriki, T.; Kondo, T.; Makida, Y.; Manabe, A.; Mitsui, S.; Morita, Y.; Murakami, K.; Nagano, K.; Nozaki, M.; Odaka, S.; Ohska, T. K.; Sasaki, O.; Sasaki, T.; Suzuki, Y.; Tanaka, S.; Terada, S.; Tojo, J.; Tokushuku, K.; Tsuno, S.; Unno, Y.; Yamada, M.; Yamamoto, A.; Yasu, Y.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki, Japan. [Hayakawa, T.; Homma, Y.; Ichimiya, R.; Ishikawa, A.; Kawagoe, K.; King, M.; Kiyamura, H.; Kurashige, H.; Matsushita, T.; Miyazaki, K.; Nishiyama, T.; Ochi, A.; Okada, S.; Omachi, C.; Suita, K.; Takeda, H.; Tani, K.; Tokunaga, K.; Yamazaki, Y.] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 657, Japan. [Sasao, N.] Kyoto Univ, Fac Sci, Kyoto, Japan. [Takashima, R.] Kyoto Univ, Kyoto 612, Japan. [Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Consejo Nacl Invest Cient & Tecn, La Plata, Argentina. [Anduaga, X. S.; Dova, M. T.; Monticelli, F.; Tripiana, M. F.] Univ Nacl La Plata, Inst Fis La Plata, La Plata, Argentina. [Barton, A. E.; Borissov, G.; Bouhova-Thacker, E. V.; Brodbeck, T. J.; Catmore, J. R.; Cheatham, S.; Chilingarov, A.; Davidson, R.; De Mora, L.; Fox, H.; Henderson, R. C. W.; Hughes, G.; Jones, R. W. L.; Kartvelishvili, V.; Long, R. E.; Love, P. A.; Ratoff, P. N.; Sloan, T. J.; Smizanska, M.; Walder, J.] Univ Lancaster, Dept Phys, Lancaster, England. [Bianco, M.; Brambilla, E.; Cataldi, G.; Cazzato, A.; Chiodini, G.; Coluccia, R.; Crupi, R.; Gorini, E.; Grancagnolo, F.; Guida, A.; Perrino, R.; Primavera, M.; Spagnolo, S.; Ventura, A.] Ist Nazl Fis Nucl, Sez Lecce, Lecce, Italy. [Bianco, M.; Brambilla, E.; Cazzato, A.; Coluccia, R.; Crupi, R.; Gorini, E.; Guida, A.; Spagnolo, S.; Ventura, A.] Univ Salento, Dipartimento Fis, Lecce, Italy. [Allport, P. P.; Austin, N.; Burdin, S.; D'Onofrio, M.; Dervan, P.; Greenshaw, T.; Gwilliam, C. B.; Hayward, H. S.; Houlden, M. A.; Jackson, J. N.; Jones, T. J.; King, B. T.; Klein, M.; Klein, U.; Kluge, T.; Kretzschmar, J.; Laycock, P.; Maxfield, S. J.; Mehta, A.; Migas, S.; Prichard, P. M.; Sellers, G.; Vossebeld, J. H.; Waller, P.; Wiglesworth, C.; Wrona, B.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England. [Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Univ Ljubljana, Ljubljana, Slovenia. [Cindro, V.; Dolenc, I.; Filipcic, A.; Gorisek, A.; Kersevan, B. P.; Kramberger, G.; Macek, B.; Mandic, I.; Mikuz, M.; Tykhonov, A.] Jozef Stefan Inst, Dept Phys, Ljubljana, Slovenia. [Adragna, P.; Bona, M.; Carter, A. A.; Cerrito, L.; Eisenhandler, E.; Ellis, K.; Landon, M. P. J.; Lloyd, S. L.; Morin, J.; Morris, J. D.; Piccaro, E.; Poll, J.; Rizvi, E.; Stevenson, K.; Castanheira, M. Teixeira Dias; Traynor, D.] Queen Mary Univ London, Dept Phys, London, England. [Alam, M. A.; Berry, T.; Boisvert, V.; Boorman, G.; Cooper-Smith, N. J.; Cowan, G.; Edwards, C. A.; George, S.; Goncalo, R.; Hayden, D.; Kilvington, G.; Misiejuk, A.; Rose, M.; Strong, J. A.; Teixeira-Dias, P.] Royal Holloway Univ London, Dept Phys, Surrey, England. [Baker, S.; Bernat, P.; Bieniek, S. P.; Boeser, S.; Butterworth, J. M.; Byatt, T.; Campanelli, M.; Christidi, I. A.; Cooper, B. D.; Davison, A. R.; Dean, S.; Drohan, J. G.; Jansen, E.; Jones, T. W.; Konstantinidis, N.; Monk, J.; Nash, M.; Nurse, E.; Prabhu, R.; Richards, A.; Robinson, J. E. M.; Sherwood, P.; Simmons, B.; Taylor, C.; Waugh, B. M.; Wijeratne, P. A.] UCL, Dept Phys & Astron, London, England. [Beau, T.; Bordoni, S.; Calderini, G.; Camard, A.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Trincaz-Duvoid, S.; Trinh, T. N.; Vannucci, F.; Yuan, L.] CNRS, IN2P3, Paris, France. [Beau, T.; Bordoni, S.; Calderini, G.; Camard, A.; Cavalleri, P.; Chareyre, E.; De Cecco, S.; Derue, F.; Imbault, D.; Krasny, M. W.; Lacour, D.; Laforge, B.; Laplace, S.; Le Dortz, O.; Lellouch, J.; Marchiori, G.; Nikolic-Audit, I.; Ocariz, J.; Ridel, M.; Roos, L.; Schwemling, Ph.; Theveneaux-Pelzer, T.; Trincaz-Duvoid, S.; Trinh, T. 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E.; Da Via, C.; Duerdoth, I. P.; Forti, A.; Foster, J. M.; Howarth, J.; Ibbotson, M.; Jones, G.; Keates, J. R.; Kelly, M.; Kolya, S. D.; Lane, J. L.; Loebinger, F. K.; Marshall, R.; Martyniuk, A. C.; Marx, M.; Masik, J.; Miyagawa, P. S.; Oh, A.; Owen, M.; Pater, J. R.; Pilkington, A. D.; Plano, W. G.; Schwanenberger, C.; Snow, S. W.; Tevlin, C. M.; Watts, S.; Yang, U. K.] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England. [Aoun, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Kuna, M.; Le Guirriec, E.; Leveque, J.; Li, B.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] CNRS, IN2P3, Marseille, France. [Aoun, S.; Bee, C. P.; Benchouk, C.; Bernardet, K.; Bousson, N.; Clemens, J. C.; Coadou, Y.; Delpierre, P.; Djama, F.; Etienne, F.; Feligioni, L.; Henry-Couannier, F.; Hoffmann, D.; Hubaut, F.; Knoops, E. B. F. G.; Kuna, M.; Le Guirriec, E.; Leveque, J.; Li, B.; Monnier, E.; Odier, J.; Petit, E.; Pralavorio, P.; Qian, Z.; Rozanov, A.; Talby, M.; Tannoury, N.; Tisserant, S.; Toth, J.; Touchard, F.; Vacavant, L.] Aix Marseille Univ, CPPM, Marseille, France. [Brau, B.; Colon, G.; Dallapiccola, C.; Meade, A.; Moyse, E. J. W.; Thompson, E. N.; van Eldik, N.; Willocq, S.; Woudstra, M. J.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA. [Chapleau, B.; Corriveau, F.; Dobbs, M.; Dufour, M-A.; Guler, H.; Klemetti, M.; Robertson, S. H.; Rios, C. Santamarina; Schram, M.; Vachon, B.; Warburton, A.] McGill Univ, Dept Phys, Montreal, PQ, Canada. [Barberio, E. L.; Davey, W.; Davidson, N.; Felzmann, C. U.; Kazi, S. I.; Limosani, A.; Moorhead, G. F.; Phan, A.; Sevior, M. E.; Shao, Q. T.; Taylor, G. N.; White, M. J.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Armbruster, A. J.; Chapman, J. W.; Cirilli, M.; Dai, T.; Diehl, E. B.; Eppig, A.; Ferretti, C.; Goldfarb, S.; Harper, D.; Levin, D.; Li, X.; Liu, H.; Liu, J. B.; Mc Kee, S. P.; Neal, H. A.; Panikashvili, N.; Purdham, J.; Qian, J.; Scheirich, D.; Strandberg, J.; Thun, R. P.; Walch, S.; Wilson, A.; Yang, H.; Zhou, B.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. [Abolins, M.; Arabidze, G.; Brock, R.; Bromberg, C.; Caughron, S.; Comune, G.; Di Mattia, A.; Fedorko, W.; Hauser, R.; Heim, S.; Holzbauer, J. L.; Huston, J.; Koll, J.; Kraus, J.; Linnemann, J. T.; Mangeard, P. S.; Martin, B.; Miller, R. J.; Pope, B. G.; Ryan, P.; Schwienhorst, R.; Tollefson, K.; Zhang, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Acerbi, E.; Aleppo, M.; Alessandria, F.; Alimonti, G.; Andreazza, A.; Baccaglioni, G.; Battistoni, G.; Bellomo, G.; Besana, M. I.; Broggi, F.; Caccia, M.; Carminati, L.; Cavalli, D.; Costa, G.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Giugni, D.; Koletsou, I.; Lari, T.; Lazzaro, A.; Lombardo, V. P.; Mandelli, L.; Mazzanti, M.; Meroni, C.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Resconi, S.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Tartarelli, G. F.; Troncon, C.; Vegni, G.; Volpini, G.] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy. [Acerbi, E.; Aleppo, M.; Andreazza, A.; Bellomo, G.; Besana, M. I.; Caccia, M.; Carminati, L.; Dell'Asta, L.; Fanti, M.; Favareto, A.; Lazzaro, A.; Montesano, S.; Perini, L.; Pizio, C.; Ragusa, F.; Rivoltella, G.; Rossi, L.; Sorbi, M.; Vegni, G.] Univ Milan, Dipartimento Fis, Milan, Italy. [Bogouch, A.; Kulchitsky, Y.; Kurochkin, Y. A.; Satsounkevitch, I.; Tsiareshka, P. V.] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk, Byelarus. [Gilewsky, V.; Kuzhir, P.; Rumiantsev, V.; Starovoitov, P.; Yanush, S.] Natl Sci & Educ Ctr Particle & High Energy Phys, Minsk, Byelarus. 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N.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia. [Adomeit, S.; Biebel, O.; Calfayan, P.; de Graat, J.; Deile, M.; Duckeck, G.; Ebke, J.; Elmsheuser, J.; Engl, A.; Galea, C.; Genest, M. H.; Hertenberger, R.; Kennedy, J.; Kummer, C.; Legger, F.; Lichtnecker, M.; Mameghani, R.; Mueller, T. A.; Nunnemann, T.; Rauscher, F.; Reznicek, P.; Ruckert, B.; Sanders, M. P.; Schaile, D.; Schieck, J.; Serfon, C.; Staude, A.; Walker, R.; Will, J. Z.; Zhuang, X.] Univ Munich, Fak Phys, Munich, Germany. [Aderholz, M.; Barillari, T.; Beimforde, M.; Bethke, S.; Capriotti, D.; Cortiana, G.; Dannheim, D.; Dietl, H.; Dubbert, J.; Ehrich, T.; Flowerdew, M. J.; Giovannini, P.; Gottfert, T.; Groh, M.; Haefner, P.; Hauff, D.; Hott, T.; Jantsch, A.; Kaiser, S.; Kiryunin, A. E.; Kluth, S.; Kortner, O.; Kortner, S.; Kotov, S.; Kroha, H.; Lutz, G.; Macchiolo, A.; Manz, A.; Menke, S.; Mohrdieck-Moeck, S.; Moser, H. G.; Nisius, R.; Oberlack, H.; Pospelov, G. E.; Potrap, I. N.; Rauter, E.; Richter, R.; Salihagic, D.; Schacht, P.; Seuster, R.; Stonjek, S.; Valderanis, C.; von der Schmitt, H.; von Loeben, J.; Weigell, P.; Zhuravlov, V.] Werner Heisenberg Inst, Max Planck Inst Phys, Munich, Germany. [Shimojima, M.; Tanaka, Y.] Nagasaki Inst Appl Sci, Nagasaki, Japan. [Hasegawa, S.; Itoh, Y.; Ohshima, T.; Okumura, Y.; Sugimoto, T.; Takahashi, Y.; Tomoto, M.; Wakabayashi, J.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan. [Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Carlino, G.; Cevenini, F.; Chiefari, G.; Conventi, F.; de Asmundis, R.; Della Pietra, M.; della Volpe, D.; Doria, A.; Giordano, R.; Iacobucci, G.; Izzo, V.; Merola, L.; Musto, E.; Patricelli, S.; Rossi, E.; Sekhniaidze, G.] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy. [Aloisio, A.; Alviggi, M. G.; Canale, V.; Capasso, L.; Cevenini, F.; Chiefari, G.; della Volpe, D.; Giordano, R.; Merola, L.; Musto, E.; Patricelli, S.; Rossi, E.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy. [Gorelov, I.; Hoeferkamp, M. R.; Metcalfe, J.; Seidel, S. C.; Toms, K.; Wang, R.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA. [Consonni, M.; De Groot, N.; Filthaut, F.; Klok, P. F.; Koenig, A. C.; Koetsveld, F.; Magrath, C. A.; Ordonez, G.; Raas, M.; Timmermans, C. J. W. P.] Radboud Univ Nijmegen Nikhef, Inst Math Astrophys & Particle Phys, Nijmegen, Netherlands. [Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Buis, E. J.; Colijn, A. P.; Dankers, R.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Salamanna, G.; Sandstroem, R.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; Van der Leeuw, R.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Univ Amsterdam, Amsterdam, Netherlands. [Bentvelsen, S.; Bobbink, G. J.; Bos, K.; Boterenbrood, H.; Buis, E. J.; Colijn, A. P.; Dankers, R.; Daum, C.; de Jong, P.; De Nooij, L.; Doxiadis, A. D.; Ferrari, P.; Garitaonandia, H.; Geerts, D. A. A.; Gosselink, M.; Hartjes, F.; Hessey, N. P.; Igonkina, O.; Kayl, M. S.; Klous, S.; Kluit, P.; Koffeman, E.; Koutsman, A.; Lee, H.; Linde, F.; Luijckx, G.; Massaro, G.; Mechnich, J.; Muijs, A.; Mussche, I.; Ottersbach, J. P.; Peters, O.; Reichold, A.; Rijpstra, M.; Ruckstuhl, N.; Salamanna, G.; Sandstroem, R.; Snuverink, J.; Ta, D.; Tsiakiris, M.; Turlay, E.; van der Graaf, H.; van der Kraaij, E.; Van der Leeuw, R.; van der Poel, E.; Van Eijk, B.; van Kesteren, Z.; van Vulpen, I.; Verkerke, W.; Vermeulen, J. C.; Vreeswijk, M.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands. [Calkins, R.; Chakraborty, D.; de Lima, J. G. Rocha; Suhr, C.; Zutshi, V.] No Illinois Univ, Dept Phys, De Kalb, IL USA. [Beloborodova, O.; Bobrovnikov, V. B.; Bogdanchikov, A.; Kazanin, V. A.; Kolachev, G. M.; Korol, A.; Malyshev, V.; Maslennikov, A. L.; Maximov, D. A.; Orlov, I.; Peleganchuk, S. V.; Schamov, A. G.; Skovpen, K.; Soukharev, A.; Talyshev, A.; Tikhonov, Y. A.; Zaytsev, A.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia. [Budick, B.; Casadei, D.; Cranmer, K.; Djilkibaev, R.; van Huysduynen, L. Hooft; Konoplich, R.; Krasznahorkay, A.; Lewis, G. H.; Mincer, A. I.; Nemethy, P.; Neves, R. M.; Prokofiev, K.; Shibata, A.; Zhao, L.] NYU, Dept Phys, New York, NY 10003 USA. [Fernando, W.; Fisher, M. J.; Gan, K. K.; Kagan, H.; Kass, R. D.; Moss, J.; Rahimi, A. M.; Strang, M.] Ohio State Univ, Columbus, OH 43210 USA. [Nakano, I.] Okayama Univ, Fac Sci, Okayama 700, Japan. [Abbott, B.; Gutierrez, P.; Huang, G. S.; Jana, D. K.; Marzin, A.; Meera-Lebbai, R.; Saleem, M.; Severini, H.; Skubic, P.; Snow, J.; Strauss, M.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA. [Abi, B.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA. [Hamal, P.; Kocnar, A.; Nozka, L.] Palacky Univ, RCPTM, CR-77147 Olomouc, Czech Republic. [Antos, J.; Brau, J. E.; Potter, C. T.; Ptacek, E.; Reinsch, A.; Robinson, M.; Searcy, J.; Shamim, M.; Sinev, N. B.; Strom, D. M.; Torrence, E.] Univ Oregon, Ctr High Energy Phys, Eugene, OR 97403 USA. [Abreu, H.; Arnault, C.; Auge, E.; Azuma, Y.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De La Taille, C.; De Regie, J. B. De Vivie; Diglio, S.; Duflot, L.; Escalier, M.; Falou, A. C.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Nakahama, Y.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] CNRS, IN2P3, F-91405 Orsay, France. [Abreu, H.; Arnault, C.; Auge, E.; Azuma, Y.; Barrillon, P.; Benoit, M.; Binet, S.; Blanchard, J. -B.; Bourdarios, C.; Breton, D.; Collard, C.; De La Taille, C.; De Regie, J. B. De Vivie; Diglio, S.; Duflot, L.; Escalier, M.; Falou, A. C.; Fayard, L.; Fournier, D.; Grivaz, J. -F.; Heller, M.; Henrot-Versille, S.; Hrivnac, J.; Iconomidou-Fayard, L.; Idarraga, J.; Kado, M.; Lounis, A.; Makovec, N.; Matricon, P.; Nakahama, Y.; Niedercorn, F.; Poggioli, L.; Puzo, P.; Renaud, A.; Rousseau, D.; Ruan, X.; Rybkin, G.; Sauvan, J. B.; Schaarschmidt, J.; Schaffer, A. C.; Serin, L.; Simion, S.; Tanaka, R.; Veillet, J. J.; Vukotic, I.; Wicek, F.; Zerwas, D.; Zhang, Z.] Univ Paris 11, LAL, Orsay, France. [Hanagaki, K.; Hirose, M.; Meguro, T.; Nomachi, M.; Sugaya, Y.] Osaka Univ, Grad Sch Sci, Osaka, Japan. [Bugge, L.; Buran, T.; Cameron, D.; Cogneras, E.; Czyczula, Z.; Gjelsten, B. K.; Lund, E.; Ould-Saada, F.; Pajchel, K.; Pylypchenko, Y.; Read, A. L.; Rohne, O.; Samset, B. H.; Stapnes, S.; Strandlie, A.; Taga, A.] Univ Oslo, Dept Phys, Oslo, Norway. [Abdesselam, A.; Apolle, R.; Barr, A. J.; Beauchemin, P. H.; Boddy, C. R.; Brett, N. D.; Buchanan, J.; Buckingham, R. M.; Buira-Clark, D.; Coe, P.; Coniavitis, E.; Cooper-Sarkar, A. M.; Dehchar, M.; Doglioni, C.; Farrington, S. M.; Ferrando, J.; Gallas, E. J.; Gilbert, L. M.; Gwenlan, C.; Hawes, B. M.; Holmes, A.; Horton, K.; Howell, D. F.; Huffman, T. B.; Issever, C.; Karagoz, M.; King, R. S. B.; Kirsch, G. P.; Kundu, N.; Larner, A.; Lau, W.; Lavorato, A.; Liang, Z.; Livermore, S. S. A.; Loken, J.; Mattravers, C.; Mermod, P.; Nickerson, R. B.; Pinder, A.; Ryder, N. C.; Short, D.; Tseng, J. C-L.; Viehhauser, G. H. A.; Weidberg, A. R.; Whitehead, S. R.; Wooden, G.] Univ Oxford, Dept Phys, Oxford, England. [Bellomo, M.; Cambiaghi, M.; Conta, C.; Ferrari, R.; Franchino, S.; Fraternali, M.; Gaudio, G.; Livan, M.; Negri, A.; Polesello, G.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.; Vercesi, V.] Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy. [Cambiaghi, M.; Conta, C.; Franchino, S.; Fraternali, M.; Livan, M.; Negri, A.; Rebuzzi, D. M.; Rimoldi, A.; Uslenghi, M.] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy. [Alison, J.; Degenhardt, J.; Donega, M.; Dressnandt, N.; Fratina, S.; Hance, M.; Hines, E.; Jackson, B.; Kroll, J.; Kunkle, J.; LeGeyt, B. C.; Lipeles, E.; Martin, F. F.; Olivito, D.; Ospanov, R.; Reece, R.; Stahlman, J.; Thomson, E.; Wagner, P.; Williams, H. H.] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA. [Fedin, O. L.; Gratchev, V.; Grebenyuk, O. G.; Maleev, V. P.; Nesterov, S. Y.; Ryabov, Y. F.; Schegelsky, V. A.; Sedykh, E.; Seliverstov, D. M.; Zalite, Yo. K.] Petersburg Nucl Phys Inst, Gatchina, Russia. [Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bertolucci, F.; Cascella, M.; Cavasinni, V.; Del Prete, T.; Dotti, A.; Francavilla, P.; Giangiobbe, V.; Lupi, A.; Mazzoni, E.; Roda, C.; Sarri, F.; Zenonos, Z.] Univ Pisa, Dipartimento Fis E Fermi, Pisa, Italy. [Boudreau, J.; Boulahouache, C.; Cleland, W.; Kittelmann, T.; Mueller, J.; Paolone, V.; Prieur, D.; Savinov, V.; Tsulaia, V.; Wendler, S.; Yoosoofmiya, R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. [Aguilar-Saavedra, J. A.; Amorim, A.; Anjos, N.; Carvalho, J.; Coccaro, A.; Conde Muino, P.; Do Valle Wemans, A.; Fernandes, B.; Fiolhais, M. C. N.; Gomes, A.; Jorge, P. M.; Lopes, L.; Machado Miguens, J.; Magalhaes Martins, P. J.; Maio, A.; Maneira, J.; Morais, A.; Oliveira, M.; Onofre, A.; Palma, A.; Pina, J.; Pinto, B.; Santos, H.; Saraiva, J. G.; Silva, J.; Soares, M.; Veloso, F.; Wolters, H.; Yuan, L.] Lab Instrumentacao & Fis Expt Particulas LIP, Lisbon, Portugal. [Aguilar-Saavedra, J. A.; Castro, N. F.] Univ Granada, CAFPE, Granada, Portugal. [Aguilar-Saavedra, J. A.; Castro, N. F.] Univ Granada, Dept Fis Teor & Cosmos, Granada, Portugal. [Chudoba, J.; Gallus, P.; Gunther, J.; Hruska, I.; Juranek, V.; Kepka, O.; Kupco, A.; Kus, V.; Kvasnicka, O.; Lipinsky, L.; Lokajicek, M.; Marcisovsky, M.; Mikestikova, M.; Myska, M.; Nemecek, S.; Panuskova, M.; Ruzicka, P.; Schovancova, J.; Sicho, P.; Staroba, P.; Tasevsky, M.; Tic, T.; Valenta, J.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic. [Davidek, T.; Dolejsi, J.; Dolezal, Z.; Drasal, Z.; Kodys, P.; Leitner, R.; Novakova, J.; Rybar, M.; Spousta, M.; Strachota, P.; Suk, M.; Sykora, T.; Tas, P.; Valkar, S.; Vorobel, V.; Wilhelm, I.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [Augsten, K.; Holy, T.; Horazdovsky, T.; Hubacek, Z.; Jakubek, J.; Kohout, Z.; Kral, V.; Krejci, F.; Pospisil, S.; Simak, V.; Slavicek, T.; Smolek, K.; Sodomka, J.; Solar, M.; Solc, J.; Sopko, V.; Sopko, B.; Stekl, I.; Turecek, D.; Vacek, V.; Vlasak, M.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic. [Ammosov, V. V.; Borisov, A.; Bozhko, N. I.; Denisov, S. P.; Fakhrutdinov, R. M.; Fenyuk, A. B.; Gapienko, V. A.; Golovnia, S. N.; Gorokhov, S. A.; Goryachev, V. N.; Gushchin, V. N.; Ivashin, A. V.; Kabachenko, V. V.; Karyukhin, A. N.; Kholodenko, A. G.; Kiver, A. M.; Kopikov, S. V.; Koreshev, V.; Korotkov, V. A.; Kozhin, A. S.; Lapin, V. V.; Larionov, A. V.; Levitski, M. S.; Minaenko, A. A.; Mitrofanov, G. Y.; Moisseev, A. M.; Myagkov, A. G.; Nikolaenko, V.; Pleskach, A. V.; Ryadovikov, V.; Solodkov, A. A.; Solovyanov, O. V.; Starchenko, E. A.; Sviridov, Yu. M.; Vorobiev, A. P.; Vovenko, A. S.; Zaets, V. G.; Zaitsev, A. M.; Zenin, A. V.; Zenin, O.; Zmouchko, V. V.] State Res Ctr Inst High Energy Phys, Protvino, Russia. [Adye, T.; Baines, J. T.; Barnett, B. M.; Botterill, D.; Burke, S.; Clifft, R. W.; Dallison, S. J.; Dewhurst, A.; Emeliyanov, D.; Fisher, S. M.; Gallop, B. J.; Gee, C. N. P.; Gillman, A. R.; Greenfield, D.; Haywood, S. J.; Kirk, J.; Mattravers, C.; McCubbin, N. A.; McMahon, S. J.; Middleton, R. P.; Murray, W. J.; Nash, M.; Norton, P. R.; Phillips, P. W.; Sankey, D. P. C.; Scott, W. G.; Strube, J.; Tyndel, M.; Weber, M.; Wickens, F. J.; Wielers, M.] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England. [Benslama, K.; Ju, X.; Ming, Y.; Ortega, E. O.; Smit, G. V. Ybeles] Univ Regina, Dept Phys, Regina, SK S4S 0A2, Canada. [Tanaka, S.] Ritsumeikan Univ, Shiga, Japan. [Anulli, F.; Artoni, G.; Bagnaia, P.; Bini, C.; Borroni, S.; Caloi, R.; Cavallari, A.; Ciapetti, G.; D'Orazio, A.; De Pedis, D.; De Salvo, A.; Dionisi, C.; Falciano, S.; Gentile, S.; Giagu, S.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Luminari, L.; Maiani, C.; Marzano, F.; Mirabelli, G.; Nisati, A.; Pasqualucci, E.; Petrolo, E.; Pontecorvo, L.; Rescigno, M.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Valente, P.; Vari, R.; Veneziano, S.; Zanello, L.] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy. [Artoni, G.; Bagnaia, P.; Bini, C.; Borroni, S.; Caloi, R.; Cavallari, A.; Ciapetti, G.; Dionisi, C.; Gentile, S.; Giagu, S.; Lacava, F.; Lo Sterzo, F.; Luci, C.; Maiani, C.; Tehrani, F. Safai; Sidoti, A.; Camillocci, E. Solfaroli; Spila, F.; Zanello, L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Aielli, G.; Camarri, P.; Cardarelli, R.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Liberti, B.; Marchese, F.; Paoloni, A.; Salamon, A.; Santonico, R.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy. [Aielli, G.; Camarri, P.; Cattani, G.; Di Ciaccio, A.; Di Nardo, R.; Di Simone, A.; Marchese, F.; Paoloni, A.; Santonico, R.] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy. [Bacci, C.; Baroncelli, A.; Biglietti, M.; Branchini, P.; Ceradini, F.; Di Luise, S.; Di Micco, B.; Farilla, A.; Graziani, E.; Iodice, M.; Orestano, D.; Passeri, A.; Pastore, F.; Petrucci, F.; Ruggieri, F.; Spiriti, E.; Stanescu, C.; Tonazzo, A.] Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy. [Bacci, C.; Biglietti, M.; Ceradini, F.; Di Luise, S.; Di Micco, B.; Orestano, D.; Pastore, F.; Petrucci, F.; Ruggieri, F.; Tonazzo, A.] Univ Roma Tre, Dipartimento Fis, Rome, Italy. [Benchekroun, D.; Chafaq, A.; Gouighri, M.; Goujdami, D.; Hoummada, A.] Univ Hassan 2, Reseau Univ Phys Hautes Energies, Fac Sci Ain Chock, Casablanca, Morocco. [Hoummada, A.] Ctr Natl Energie Sci Tech Nucl, Rabat, Morocco. [Cherkaoui El Moursli, R.] Univ Cadi Ayyad, Fac Sci Semlalia, Dept Phys, Marrakech 40000, Morocco. [Derkaoui, J. E.; Ouchrif, M.] Univ Mohamed Premier, Fac Sci, Oujda, Morocco. [Derkaoui, J. E.; Ouchrif, M.] LPTPM, Oujda, Morocco. [Ghazlane, H.] Univ Mohammed 5, Fac Sci, Rabat, Morocco. [Bachacou, H.; Bauer, F.; Besson, N.; Boonekamp, M.; Chevalier, L.; Chevallier, F.; Ernwein, J.; Etienvre, A. I.; Formica, A.; Gauthier, L.; Giraud, P. F.; Guyot, C.; Hassani, S.; Kozanecki, W.; Lancon, E.; Laporte, J. F.; Le Menedeu, E.; Legendre, M.; Lenzi, B.; Mansoulie, B.; Meyer, J-P.; Morange, N.; Nicolaidou, R.; Ouraou, A.; Pomarede, D. M.; Resende, B.; Royon, C. R.; Schune, Ph.; Schwindling, J.; Simard, O.; Virchaux, M.; Yu, J.] CEA Saclay, DSM, IRFU, Inst Rech Lois Fondament Univ,Commiss Energie Ato, F-91191 Gif Sur Yvette, France. [Bangert, A.; Chouridou, S.; Damiani, D. S.; Dubbs, T.; Fowler, K.; Grillo, A. A.; Hare, G. A.; Litke, A. M.; Lockman, W. S.; Manning, P. M.; Mitrevski, J.; Nielsen, J.; Sadrozinski, H. F-W.; Schumm, B. A.; Seiden, A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA. [Forbush, D. A.; Goussiou, A. G.; Griffiths, J.; Harris, O. M.; Kuykendall, W.; Lubatti, H. J.; Mockett, P.; Policicchio, A.; Rosati, S.; Rothberg, J.; Ventura, D.; Verducci, M.; Wang, J. C.; Watts, G.; Zhao, T.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Anastopoulos, C.; Booth, C. N.; Booth, P.; Costanzo, D.; Donszelmann, T. Cuhadar; Dawson, I.; Duxfield, R.; Hodgkinson, M. C.; Hodgson, P.; Johansson, P.; Korolkova, E. V.; Mayne, A.; Mcfayden, J. A.; Nicolas, L.; Owen, S.; Paganis, E.; Sutton, M. R.; Tovey, D. R.; Tua, A.; Xu, D.] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England. [Hasegawa, Y.; Ohshita, H.; Takeshita, T.] Shinshu Univ, Dept Phys, Nagano, Japan. [Buchholz, P.; Czirr, H.; Fleck, I.; Gaur, B.; Grybel, K.; Holder, M.; Ibragimov, I.; Rammes, M.; Sipica, V.; Stahl, T.; Walkowiak, W.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany. [Dawe, E.; Godfrey, J.; Komaragiri, J. R.; O'Neil, D. C.; Petteni, M.; Schouten, D.; Stelzer, B.; Trottier-McDonald, M.] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada. [Aracena, I.; Barklow, T.; Bartoldus, R.; Bawa, H. S.; Butler, B.; Cogan, J. G.; Gao, Y. S.; Grenier, P.; Haas, A.; Hansson, P.; Horn, C.; Jackson, P.; Kim, P. C.; Kocian, M.; Koi, T.; Lowe, A. J.; Miller, D. W.; Mount, R.; Nelson, S.; Nelson, T. K.; Salnikov, A.; Schwartzman, A.; Silverstein, D.; Smith, D.; Strauss, E.; Su, D.; Vetterli, M. C.; Wilson, M. G.; Wittgen, M.; Young, C.] SLAC Natl Accelerator Lab, Stanford, CA USA. [Batkova, L.; Federic, P.; Pecsy, M.; Stavina, P.; Sykora, I.; Tokar, S.; Zenis, T.; Zilka, B.] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia. [Bruncko, D.; Ferencei, J.; Kladiva, E.; Strizenec, P.] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice 04353, Slovakia. [Braem, A.] Univ Johannesburg, Dept Phys, Johannesburg, South Africa. [Leney, K. J. C.; Vickey, T.] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa. [Asman, B.; Bohm, C.; Clement, C.; Eriksson, D.; Gellerstedt, K.; Hellman, S.; Hidvegi, A.; Holmgren, S. O.; Johansen, M.; Johansson, K. E.; Jon-And, K.; Lesser, J.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Papadelis, A.; Ramstedt, M.; Sellden, B.; Silverstein, S. B.; Sjolin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Stockholm Univ, Dept Phys, Stockholm, Sweden. [Asman, B.; Clement, C.; Gellerstedt, K.; Hellman, S.; Johansen, M.; Jon-And, K.; Lundberg, J.; Milstead, D. A.; Moa, T.; Nordkvist, B.; Ohm, C. C.; Ramstedt, M.; Sjolin, J.; Strandberg, S.; Tylmad, M.; Yang, Z.] Oskar Klein Ctr, Stockholm, Sweden. [Grahn, K-J.; Lund-Jensen, B.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden. [Ahmad, A.; Caputo, R.; Deluca, C.; Devetak, E.; DeWilde, B.; Engelmann, R.; Farley, J.; Goodson, J. J.; Grassi, V.; Gray, J. A.; Hobbs, J.; Jia, J.; Khodinov, A.; McCarthy, R. L.; Mohapatra, S.; Rijssenbeek, M.; Schamberger, R. D.; Stupak, J.; Tsybychev, D.; Yurkewicz, A.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Bartsch, V.; De Santo, A.; Potter, C. J.; Salvatore, F.] Univ Sussex, Dept Phys & Astron, Brighton, E Sussex, England. [Lee, J. S. H.; Patel, N.; Saavedra, A. F.; Varvell, K. E.; Waugh, A. T.; Yabsley, B.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Chu, M. L.; Hou, S.; Lee, S. C.; Lin, S. C.; Liu, D.; Mazini, R.; Meng, Z.; Ren, Z. L.; Soh, D. A.; Teng, P. K.; Wang, J.; Wang, S. M.; Weng, Z.; Zhong, J.; Zhou, Y.] Acad Sinica, Inst Phys, Taipei, Taiwan. [Harpaz, S. Behar; Ben Ami, S.; Bressler, S.; Hershenhorn, A. D.; Kajomovitz, E.; Landsman, H.; Lifshitz, R.; Rozen, Y.; Tarem, S.; Tennenbaum-Katan, Y. D.; Vallecorsa, S.] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel. [Abramowicz, H.; Alexander, G.; Amram, N.; Bella, G.; Benary, O.; Benhammou, Y.; Brodet, E.; Etzion, E.; Gershon, A.; Ginzburg, J.; Guttman, N.; Hod, N.; Kreisel, A.; Mahalalel, Y.; Munwes, Y.; Oren, Y.; Reinherz-Aronis, E.; Sadeh, I.; Silver, Y.; Soffer, A.; Taiblum, N.; Urkovsky, E.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Iliadis, D.; Kordas, K.; Kouskoura, V.; Nomidis, I.; Petridis, A.; Petridou, C.; Sampsonidis, D.] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece. [Akimoto, G.; Asai, S.; Dohmae, T.; Imori, M.; Isobe, T.; Kanaya, N.; Kaneda, M.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Kubota, T.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Nomoto, H.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Dept Phys, Tokyo 113, Japan. [Akimoto, G.; Asai, S.; Dohmae, T.; Imori, M.; Isobe, T.; Kanaya, N.; Kaneda, M.; Kataoka, Y.; Kawamoto, T.; Kessoku, K.; Kobayashi, T.; Kubota, T.; Mashimo, T.; Masubuchi, T.; Matsumoto, H.; Matsunaga, H.; Nakamura, K.; Ninomiya, Y.; Nomoto, H.; Oda, S.; Okuyama, T.; Sakamoto, H.; Tanaka, J.; Terashi, K.; Ueda, I.; Yamamoto, S.; Yamamura, T.; Yamazaki, T.] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo, Japan. [Bratzler, U.; Fukunaga, C.] Tokyo Metropolitan Univ, Grad Sch Sci & Technol, Tokyo 158, Japan. [Jinnouchi, O.; Kanno, T.; Kuze, M.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan. [Bailey, D. C.; Bain, T.; Beare, B.; Brelier, B.; Cheung, S. L.; Deviveiros, P. O.; Dhaliwal, S.; Farooque, T.; Fatholahzadeh, B.; Gibson, A.; Guo, B.; Jankowski, E.; Krieger, P.; Le Maner, C.; Martens, F. K.; Orr, R. S.; Rezvani, R.; Rosenbaum, G. A.; Sandhu, P.; Savard, P.; Sinervo, P.; Spreitzer, T.; Tardif, D.; Teuscher, R. J.; Thompson, P. D.; Trischuk, W.] Univ Toronto, Dept Phys, Toronto, ON, Canada. [Azuelos, G.; Canepa, A.; Caron, B.; Chekulaev, S. V.; Fortin, D.; Gingrich, D. M.; Losty, M. J.; Nugent, I. M.; Oakham, F. G.; Oram, C. J.; Savard, P.; Stelzer-Chilton, O.; Tafirout, R.; Trigger, I. M.; Vetterli, M. C.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Taylor, W.] York Univ, Dept Phys & Astron, Toronto, ON M3J 2R7, Canada. [Hara, K.; Kim, S. H.; Kurata, M.; Nagai, K.; Ukegawa, F.] Univ Tsukuba, Inst Pure & Appl Sci, Ibaraki, Japan. [Hamilton, S.; Napier, A.; Rolli, S.; Sliwa, K.; Todorova-Nova, S.] Tufts Univ, Ctr Sci & Technol, Medford, MA 02155 USA. [Losada, M.; Loureiro, K. F.; Navas, L. Mendoza; Navarro, G.; Rodriguez, D.] Univ Antonio Narino, Ctr Invest, Bogota, Colombia. [Benedict, B. H.; Bold, T.; Ciobotaru, M. D.; Deng, J.; Dobson, M.; Eschrich, I. Gough; Grabowska-Bold, I.; Hawkins, D.; Lankford, A. J.; Okawa, H.; Porter, R.; Scannicchio, D. A.; Taffard, A.; Toggerson, B.; Unel, G.; Werth, M.; Wheeler-Ellis, S. J.; Whiteson, D.; Zhou, N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA. [Acharya, B. S.; Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.; Suruliz, K.] Ist Nazl Fis Nucl, Grp Coll Udine, Udine, Italy. [Acharya, B. S.; Suruliz, K.] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy. [Cauz, D.; Cobal, M.; De Lotto, B.; De Sanctis, U.; Del Papa, C.; Pinamonti, M.; Shaw, K.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy. [Benekos, N.; Coggeshall, J.; Cortes-Gonzalez, A.; Errede, D.; Errede, S.; Khandanyan, H.; Lie, K.; Liss, T. M.; McCarn, A.; Neubauer, M. S.; Vichou, I.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Belanger-Champagne, C.; Brenner, R.; Buszello, C. P.; Ekelof, T.; Ellert, M.; Ferrari, A.; Hansen, C. J.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden. [Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] CSIC, Valencia, Spain. [Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Fis Corpuscular IFIC, Valencia, Spain. [Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Fis Atom Mol & Nucl, Valencia, Spain. [Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Dept Ingn Elect, Valencia, Spain. [Amoros, G.; Cabrera Urban, S.; Castillo Gimenez, V.; Costa, M. J.; Escobar, C.; Ferrer, A.; Fuster, J.; Garcia, C.; Gonzalez de la Hoz, S.; Hernandez Jimenez, Y.; Higon-Rodriguez, E.; Irles Quiles, A.; Kaci, M.; Lacasta, C.; Lacuesta, V. R.; Marti-Garcia, S.; Minano, M.; Mitsou, V. A.; Moles-Valls, R.; Moreno Llacer, M.; Oliver Garcia, E.; Perez Garcia-Estan, M. T.; Ros, E.; Salt, J.; Solans, C. A.; Soldevila, U.; Sanchez, J.; Torro Pastor, E.; Valladolid Gallego, E.; Valls Ferrer, J. A.; Villaplana Perez, M.; Vos, M.; Wildauer, A.] Univ Valencia, Inst Microelect Barcelona IMB CNM, Valencia, Spain. [Axen, D.; Gay, C.; Loh, C. W.; Mills, W. J.; Muir, A.; Swedish, S.; Viel, S.] Univ British Columbia, Dept Phys, Vancouver, BC, Canada. [Astbury, A.; Banerjee, Sw; Bansal, V.; Berghaus, F.; Courneyea, L.; Fincke-Keeler, M.; Keeler, R.; Kowalewski, R.; Lefebvre, M.; Lessard, J-R.; McPherson, R. A.; Plamondon, M.; Sobie, R.] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada. [Kimura, N.; Yorita, K.] Waseda Univ, Tokyo, Japan. [Alon, R.; Barak, L.; Duchovni, E.; Frank, T.; Gabizon, O.; Gross, E.; Klier, A.; Lellouch, D.; Levinson, L. J.; Mikenberg, G.; Milov, A.; Milstein, D.; Roth, I.; Silbert, O.; Smakhtin, V.; Vitells, O.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel. [Asfandiyarov, R.; Montoya, G. D. Carrillo; Hernandez, A. M. Castaneda; Castaneda-Miranda, E.; Chen, X.; Dos Anjos, A.; Fang, Y.; Fasching, D.; Castillo, L. R. Flores; Gonzalez, S.; Gutzwiller, O.; Ji, H.; Kashif, L.; Cheong, A. Leung Fook; Li, H.; Ma, L. L.; Garcia, B. R. Mellado; Pan, Y. B.; Pataraia, S.; Morales, M. I. Pedraza; Peng, H.; Poveda, J.; Quayle, W. B.; Sarangi, T.; Wang, H.; Wiedenmann, W.; Wu, S. L.; Zhu, Y.; Zobernig, G.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Fleischmann, P.; Meyer, J.; Redelbach, A.; Strohmer, R.; Trefzger, T.] Univ Wurzburg, Fak Phys & Astron, Wurzburg, Germany. [Barisonzi, M.; Becks, K. H.; Boek, J.; Braun, H. M.; Dopke, J.; Drees, J.; Fleischmann, S.; Flick, T.; Gerlach, P.; Glitza, K. W.; Gorfine, G.; Grah, C.; Hamacher, K.; Harenberg, T.; Henss, T.; Hirschbuehl, D.; Imhaeuser, M.; Kalinin, S.; Kersten, S.; Kootz, A.; Kuhl, T.; Lenz, T.; Lenzen, G.; Maettig, P.; Mechtel, M.; Sandhoff, M.; Sandvoss, S.; Sartisohn, G.; Schultes, J.; Siebel, A.; Sturm, P.; Thadome, J.; Voss, T. T.; Wagner, W.; Wahlen, H.; Wicke, D.; Zeitnitz, C.] Berg Univ Wuppertal, Fachbereich Phys C, Wuppertal, Germany. [Adelman, J.; Atoian, G.; Auerbach, B.; Baker, O. K.; Almenar, C. Cuenca; Demers, S.; Garberson, F.; Golling, T.; Guest, D.; Hsu, P. J.; Kaplan, B.; Lee, L.; Lockwitz, S.; Loginov, A.; Martin, A. J.; Schmidt, M. P.; Sherman, D.; Thioye, M.; Tipton, P.; Wall, R.; Zeller, M.] Yale Univ, Dept Phys, New Haven, CT USA. [Grabski, V.; Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Biscarat, C.; Rahal, G.] CNRS, IN2P3, Ctr Calcul, Villeurbanne, France. [Amorim, A.; Fernandes, B.; Gomes, A.; Jorge, P. M.; Lopes, L.; Maio, A.; Morais, A.; Palma, A.; Pina, J.; Pinto, B.; Saraiva, J. G.; Silva, J.; Zajacova, Z.; Zhong, J.] Univ Lisbon, CFNUL, Lisbon, Portugal. [Amorim, A.; Dos Anjos, A.; Fernandes, B.; Gomes, A.; Jorge, P. M.; Lopes, L.; Maio, A.; Morais, A.; Palma, A.; Pina, J.; Pinto, B.; Saraiva, J. G.; Silva, J.; Zhong, J.] Univ Lisbon, Fac Ciencias, Lisbon, Portugal. [Carvalho, J.; Fiolhais, M. C. N.; Magalhaes Martins, P. J.; Oliveira, M.; Wolters, H.] Univ Coimbra, Dept Phys, Coimbra, Portugal. [Conventi, F.; Della Pietra, M.] Univ Napoli Parthenope, Naples, Italy. [Mateos, D. Lopez; Marshall, Z.; Perez, K.] CALTECH, Pasadena, CA 91125 USA. [Kono, T.; Terwort, M.; Wildt, M. A.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany. [Konoplich, R.] Manhattan Coll, New York, NY USA. [Onofre, A.] Univ Minho, Dept Fis, Braga, Portugal. [Liang, Z.; Soh, D. A.; Weng, Z.] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou, Peoples R China. [Pasztor, G.; Toth, J.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Vickey, T.] Jagiellonian Univ, Inst Phys, Krakow, Poland. [Bawa, H. S.; Gao, Y. S.; Lowe, A. J.; Park, W.; Purohit, M.; Trivedi, A.] Calif State Univ Fresno, Dept Phys, Fresno, CA 93740 USA. [Dhullipudi, R.; Greenwood, Z. D.; Sawyer, L.] Louisiana Tech Univ, Ruston, LA 71270 USA. [Lin, S. C.] Acad Sinica, Inst Phys, Acad Sinica Grid Comp, Taipei, Taiwan. Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Arfaoui, S.] CNRS, IN2P3, Marseille, France. [Arfaoui, S.] Aix Marseille Univ, CPPM, Marseille, France. [Bold, T.; Grabowska-Bold, I.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland. [Guler, H.] Univ Montreal, Grp Particle Phys, Montreal, PQ, Canada. [Huseynov, N.] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan. [Yuan, L.] Univ Paris Diderot, Paris, France. RP Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Freiburg, Germany. RI Mora Herrera, Maria Clemencia/L-3893-2016; Maneira, Jose/D-8486-2011; Prokoshin, Fedor/E-2795-2012; KHODINOV, ALEKSANDR/D-6269-2015; Morone, Maria Cristina/P-4407-2016; Goncalo, Ricardo/M-3153-2016; Canelli, Florencia/O-9693-2016; Battistoni, Giuseppe/B-5264-2012; Idzik, Marek/A-2487-2017; Solodkov, Alexander/B-8623-2017; Zaitsev, Alexandre/B-8989-2017; Monzani, Simone/D-6328-2017; Grancagnolo, Francesco/K-2857-2015; Korol, Aleksandr/A-6244-2014; Karyukhin, Andrey/J-3904-2014; Capua, Marcella/A-8549-2015; Tartarelli, Giuseppe Francesco/A-5629-2016; la rotonda, laura/B-4028-2016; Booth, Christopher/B-5263-2016; Gonzalez de la Hoz, Santiago/E-2494-2016; Guo, Jun/O-5202-2015; Smirnova, Oxana/A-4401-2013; Aguilar Saavedra, Juan Antonio/F-1256-2016; Leyton, Michael/G-2214-2016; Jones, Roger/H-5578-2011; Vranjes Milosavljevic, Marija/F-9847-2016; Franco , Fernando /D-5021-2013; SULIN, VLADIMIR/N-2793-2015; Samset, Bjorn H./B-9248-2012; Olshevskiy, Alexander/I-1580-2016; Cabrera Urban, Susana/H-1376-2015; Cavalli-Sforza, Matteo/H-7102-2015; Ferrer, Antonio/H-2942-2015; Hansen, John/B-9058-2015; Grancagnolo, Sergio/J-3957-2015; Tikhomirov, Vladimir/M-6194-2015; Shmeleva, Alevtina/M-6199-2015; Camarri, Paolo/M-7979-2015; Gavrilenko, Igor/M-8260-2015; Akimov, Andrey/N-1769-2015; Chekulaev, Sergey/O-1145-2015; Gorelov, Igor/J-9010-2015; Carvalho, Joao/M-4060-2013; Grinstein, Sebastian/N-3988-2014; Lei, Xiaowen/O-4348-2014; Demirkoz, Bilge/C-8179-2014; Ventura, Andrea/A-9544-2015; Villaplana Perez, Miguel/B-2717-2015; Livan, Michele/D-7531-2012; Mitsou, Vasiliki/D-1967-2009; CARPENTIERI, CARMELA/E-2137-2015; Joergensen, Morten/E-6847-2015; Martins, Paulo/M-1844-2014; Mir, Lluisa-Maria/G-7212-2015; Riu, Imma/L-7385-2014; Morozov, Sergey/C-1396-2014; Villa, Mauro/C-9883-2009; Nemecek, Stanislav/G-5931-2014; Staroba, Pavel/G-8850-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Marcisovsky, Michal/H-1533-2014; Mikestikova, Marcela/H-1996-2014; Snesarev, Andrey/H-5090-2013; Chudoba, Jiri/G-7737-2014; Peleganchuk, Sergey/J-6722-2014; Santamarina Rios, Cibran/K-4686-2014; Bosman, Martine/J-9917-2014; Kuleshov, Sergey/D-9940-2013; Anjos, Nuno/I-3918-2013; Kartvelishvili, Vakhtang/K-2312-2013; Dawson, Ian/K-6090-2013; Solfaroli Camillocci, Elena/J-1596-2012; Castro, Nuno/D-5260-2011; Wolters, Helmut/M-4154-2013; Warburton, Andreas/N-8028-2013; De, Kaushik/N-1953-2013; Sukharev, Andrey/A-6470-2014; O'Shea, Val/G-1279-2010; Lee, Jason/B-9701-2014; Mehdiyev, Rashid/H-6299-2013; Vanyashin, Aleksandr/H-7796-2013; Casadei, Diego/I-1785-2013; La Rosa, Alessandro/I-1856-2013; Moraes, Arthur/F-6478-2010; Conde Muino, Patricia/F-7696-2011; Boyko, Igor/J-3659-2013; Takai, Helio/C-3301-2012; St.Denis, Richard/C-8997-2012; branchini, paolo/A-4857-2011; collins-tooth, christopher/A-9201-2012; spagnolo, stefania/A-6359-2012; Di Nardo, Roberto/J-4993-2012; Della Pietra, Massimo/J-5008-2012; Andreazza, Attilio/E-5642-2011; Bergeaas Kuutmann, Elin/A-5204-2013; Cascella, Michele/B-6156-2013; messina, andrea/C-2753-2013; Amorim, Antonio/C-8460-2013; Orlov, Ilya/E-6611-2012; Annovi, Alberto/G-6028-2012; Brooks, William/C-8636-2013; Pina, Joao /C-4391-2012; Gladilin, Leonid/B-5226-2011; Kramarenko, Victor/E-1781-2012; Alexa, Calin/F-6345-2010; Moorhead, Gareth/B-6634-2009; Petrucci, Fabrizio/G-8348-2012; Wemans, Andre/A-6738-2012; Fabbri, Laura/H-3442-2012; Kurashige, Hisaya/H-4916-2012; Kuzhir, Polina/H-8653-2012; Delmastro, Marco/I-5599-2012; Weigell, Philipp/I-9356-2012; Veneziano, Stefano/J-1610-2012; Di Micco, Biagio/J-1755-2012; Bauer, Florian/G-8816-2011; Gutierrez, Phillip/C-1161-2011; Ferrando, James/A-9192-2012; Perrino, Roberto/B-4633-2010; De Cecco, Sandro/B-1016-2012; Wolter, Marcin/A-7412-2012; Nemecek, Stanislav/C-3487-2012; Britton, David/F-2602-2010; Li, Xuefei/C-3861-2012; Smirnova, Lidia/D-8089-2012; Smirnov, Sergei/F-1014-2011; Robson, Aidan/G-1087-2011; valente, paolo/A-6640-2010; Rotaru, Marina/A-3097-2011; Stoicea, Gabriel/B-6717-2011; Losada, Marta/B-2261-2010; Buttar, Craig/D-3706-2011; de Groot, Nicolo/A-2675-2009; Fazio, Salvatore /G-5156-2010; Doyle, Anthony/C-5889-2009; Jakubek, Jan/E-6530-2011; Marti-Garcia, Salvador/F-3085-2011 OI Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Maneira, Jose/0000-0002-3222-2738; Prokoshin, Fedor/0000-0001-6389-5399; KHODINOV, ALEKSANDR/0000-0003-3551-5808; Morone, Maria Cristina/0000-0002-0200-0632; Goncalo, Ricardo/0000-0002-3826-3442; Canelli, Florencia/0000-0001-6361-2117; Battistoni, Giuseppe/0000-0003-3484-1724; Solodkov, Alexander/0000-0002-2737-8674; Zaitsev, Alexandre/0000-0002-4961-8368; Monzani, Simone/0000-0002-0479-2207; Grancagnolo, Francesco/0000-0002-9367-3380; Korol, Aleksandr/0000-0001-8448-218X; Maio, Amelia/0000-0001-9099-0009; Fiolhais, Miguel/0000-0001-9035-0335; Karyukhin, Andrey/0000-0001-9087-4315; Anjos, Nuno/0000-0002-0018-0633; Abdelalim, Ahmed Ali/0000-0002-2056-7894; Capua, Marcella/0000-0002-2443-6525; Di Micco, Biagio/0000-0002-4067-1592; Tartarelli, Giuseppe Francesco/0000-0002-4244-502X; Doria, Alessandra/0000-0002-5381-2649; Veloso, Filipe/0000-0002-5956-4244; Gomes, Agostinho/0000-0002-5940-9893; la rotonda, laura/0000-0002-6780-5829; Osculati, Bianca Maria/0000-0002-7246-060X; Amorim, Antonio/0000-0003-0638-2321; Santos, Helena/0000-0003-1710-9291; Coccaro, Andrea/0000-0003-2368-4559; De Lotto, Barbara/0000-0003-3624-4480; Booth, Christopher/0000-0002-6051-2847; Gonzalez de la Hoz, Santiago/0000-0001-5304-5390; Guo, Jun/0000-0001-8125-9433; Smirnova, Oxana/0000-0003-2517-531X; Aguilar Saavedra, Juan Antonio/0000-0002-5475-8920; Leyton, Michael/0000-0002-0727-8107; Jones, Roger/0000-0002-6427-3513; Vranjes Milosavljevic, Marija/0000-0003-4477-9733; Franco , Fernando /0000-0002-5829-3155; SULIN, VLADIMIR/0000-0003-3943-2495; Samset, Bjorn H./0000-0001-8013-1833; Olshevskiy, Alexander/0000-0002-8902-1793; Ferrer, Antonio/0000-0003-0532-711X; Hansen, John/0000-0002-8422-5543; Grancagnolo, Sergio/0000-0001-8490-8304; Tikhomirov, Vladimir/0000-0002-9634-0581; Camarri, Paolo/0000-0002-5732-5645; Gorelov, Igor/0000-0001-5570-0133; Carvalho, Joao/0000-0002-3015-7821; Grinstein, Sebastian/0000-0002-6460-8694; Lei, Xiaowen/0000-0002-2564-8351; Ventura, Andrea/0000-0002-3368-3413; Villaplana Perez, Miguel/0000-0002-0048-4602; Livan, Michele/0000-0002-5877-0062; Mitsou, Vasiliki/0000-0002-1533-8886; CARPENTIERI, CARMELA/0000-0002-2994-0317; Joergensen, Morten/0000-0002-6790-9361; Martins, Paulo/0000-0003-3753-3751; Mir, Lluisa-Maria/0000-0002-4276-715X; Riu, Imma/0000-0002-3742-4582; Morozov, Sergey/0000-0002-6748-7277; Villa, Mauro/0000-0002-9181-8048; Mikestikova, Marcela/0000-0003-1277-2596; Peleganchuk, Sergey/0000-0003-0907-7592; Santamarina Rios, Cibran/0000-0002-9810-1816; Bosman, Martine/0000-0002-7290-643X; Kuleshov, Sergey/0000-0002-3065-326X; Solfaroli Camillocci, Elena/0000-0002-5347-7764; Castro, Nuno/0000-0001-8491-4376; Wolters, Helmut/0000-0002-9588-1773; Warburton, Andreas/0000-0002-2298-7315; De, Kaushik/0000-0002-5647-4489; O'Shea, Val/0000-0001-7183-1205; Lee, Jason/0000-0002-2153-1519; Vanyashin, Aleksandr/0000-0002-0367-5666; La Rosa, Alessandro/0000-0001-6291-2142; Moraes, Arthur/0000-0002-5157-5686; Conde Muino, Patricia/0000-0002-9187-7478; Boyko, Igor/0000-0002-3355-4662; Takai, Helio/0000-0001-9253-8307; spagnolo, stefania/0000-0001-7482-6348; Della Pietra, Massimo/0000-0003-4446-3368; Andreazza, Attilio/0000-0001-5161-5759; Cascella, Michele/0000-0003-2091-2501; Orlov, Ilya/0000-0003-4073-0326; Annovi, Alberto/0000-0002-4649-4398; Brooks, William/0000-0001-6161-3570; Pina, Joao /0000-0001-8959-5044; Gladilin, Leonid/0000-0001-9422-8636; Moorhead, Gareth/0000-0002-9299-9549; Petrucci, Fabrizio/0000-0002-5278-2206; Wemans, Andre/0000-0002-9669-9500; Fabbri, Laura/0000-0002-4002-8353; Kuzhir, Polina/0000-0003-3689-0837; Delmastro, Marco/0000-0003-2992-3805; Veneziano, Stefano/0000-0002-2598-2659; Ferrando, James/0000-0002-1007-7816; Perrino, Roberto/0000-0002-5764-7337; Britton, David/0000-0001-9998-4342; Smirnov, Sergei/0000-0002-6778-073X; valente, paolo/0000-0002-5413-0068; Rotaru, Marina/0000-0003-3303-5683; Stoicea, Gabriel/0000-0002-7511-4614; Doyle, Anthony/0000-0001-6322-6195; FU ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC; NRC; CFI, Canada; CERN; CONICYT, Chile; CAS; MOST; NSFC, China; COLCIENCIAS, Colombia; MSMT CR; MPO CR; VSC CR, Czech Republic; DNRF; DNSRC; Lundbeck Foundation, Denmark; ARTEMIS; European Union; IN2P3-CNRS; CEA-DSM/IRFU, France; GNAS, Georgia; BMBF; DFG; HGF; MPG; AvH Foundation, Germany; GSRT, Greece; ISF; MINERVA; GIF; DIP; Benoziyo Center, Israel; INFN, Italy; MEXT; JSPS, Japan; CNRST, Morocco; FOM and NWO, The Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia; ROSATOM, Russian Federation; JINR; MSTD, Serbia; MICINN, Spain; SRC; Wallenberg Foundation, Sweden; SER; SNSF; Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC; Royal Society; Leverhulme Trust; United Kingdom; DOE; NSF, United States of America FX We thank CERN for the efficient commissioning and operation of the LHC during this initial high-energy data-taking period as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC, and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST, and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR, and VSC CR, Czech Republic; DNRF, DNSRC, and Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG, and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, The Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF, and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society, and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (The Netherlands), PIC (Spain), ASGC (Taiwan), RAL (United Kingdom), and BNL (USA) and in the Tier-2 facilities worldwide. NR 41 TC 117 Z9 117 U1 8 U2 131 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD MAR 28 PY 2011 VL 106 IS 13 AR 131802 DI 10.1103/PhysRevLett.106.131802 PG 19 WC Physics, Multidisciplinary SC Physics GA 741IR UT WOS:000288857900004 PM 21517374 ER PT J AU Jablin, MS Zhernenkov, M Toperverg, BP Dubey, M Smith, HL Vidyasagar, A Toomey, R Hurd, AJ Majewski, J AF Jablin, Michael S. Zhernenkov, Mikhail Toperverg, Boris P. Dubey, Manish Smith, Hillary L. Vidyasagar, Ajay Toomey, Ryan Hurd, Alan J. Majewski, Jaroslaw TI In-Plane Correlations in a Polymer-Supported Lipid Membrane Measured by Off-Specular Neutron Scattering SO PHYSICAL REVIEW LETTERS LA English DT Article ID ROUGH SURFACES; REFLECTION; INTERFACES AB Polymer-supported single lipid bilayers are models to study configurations of cell membranes. We used off-specular neutron scattering to quantify in-plane height-height correlations of interfacial fluctuations of such a lipid bilayer. As temperature decreased from 37 degrees C to 25 degrees C, the polymer swells and the polymer-supported lipid membrane deviates from its initially nearly planar structure. A correlation length characteristic of capillary waves changes from 30 mu m at 37 degrees C to 11 mu m at 25 degrees C, while the membrane bending rigidity remains roughly constant in this temperature range. C1 [Jablin, Michael S.; Zhernenkov, Mikhail; Dubey, Manish; Smith, Hillary L.; Hurd, Alan J.; Majewski, Jaroslaw] Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Toperverg, Boris P.] Ruhr Univ Bochum, Dept Phys, D-44780 Bochum, Germany. [Toperverg, Boris P.] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia. [Vidyasagar, Ajay; Toomey, Ryan] Univ S Florida, Dept Chem & Biomed Engn, Tampa, FL 33620 USA. RP Jablin, MS (reprint author), Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, POB 1663, Los Alamos, NM 87545 USA. EM jarek@lanl.gov RI Dubey, Manish/C-9946-2011; Vidyasagar, Ajay/A-5412-2012; Lujan Center, LANL/G-4896-2012; OI Zhernenkov, Mikhail/0000-0003-3604-0672; Toperverg, Boris/0000-0001-5166-7997 FU DOE Office of Basic Energy Sciences; Los Alamos National Laboratory under DOE [DE-AC52-06NA25396]; Camille and Henry Dreyfus Foundation; National Science Foundation [DMR-0645574] FX This work benefited from the use of the Lujan Neutron Scattering Center at LANSCE funded by the DOE Office of Basic Energy Sciences and Los Alamos National Laboratory under DOE Contract No. DE-AC52-06NA25396. This work was partially supported by the Camille and Henry Dreyfus Foundation and a National Science Foundation CAREER Grant DMR-0645574. We thank Professor Efim Kats (ILL, Grenoble, France) for enlightening discussions. NR 22 TC 17 Z9 17 U1 1 U2 25 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 MAR 28 PY 2011 VL 106 IS 13 AR 138101 DI 10.1103/PhysRevLett.106.138101 PG 4 WC Physics, Multidisciplinary SC Physics GA 741IR UT WOS:000288857900009 PM 21517422 ER PT J AU Bowring, MA Bergman, RG Tilley, TD AF Bowring, Miriam A. Bergman, Robert G. Tilley, T. Don TI Disambiguation of Metal and Bronsted Acid Catalyzed Pathways for Hydroarylation with Platinum(II) Catalysts SO ORGANOMETALLICS LA English DT Article ID AROMATIC-SUBSTITUTION; TRIFLIC ACID; COMPLEXES; HYDROAMINATION; ACTIVATION; OLEFINS; BENZENE; ALKANES AB The hydroarylation of unactivated olefins effected by Pt(II) precatalysts was found to proceed through the in situ production of protic acid followed by a Friedel Crafts mechanism. The reaction was investigated using the hindered base 2,6-di-tert-butyl-4-methylpyridine and a variety of substrates. C1 [Bergman, Robert G.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Bergman, RG (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM rbergman@berkeley.edu; tdtilley@berkeley.edu FU Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, of the U.S. Department of Energy [DE-AC02-05CH11231] FX We gratefully acknowledge financial support from the Director of the Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, of the U.S. Department of Energy under Contract DE-AC02-05CH11231. We thank Kathryn Liu for the synthesis of starting materials. NR 19 TC 16 Z9 16 U1 0 U2 15 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0276-7333 J9 ORGANOMETALLICS JI Organometallics PD MAR 28 PY 2011 VL 30 IS 6 BP 1295 EP 1298 DI 10.1021/om2000458 PG 4 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA 736DO UT WOS:000288470900005 ER PT J AU Fulmer, GR Kaminsky, W Kemp, RA Goldberg, KI AF Fulmer, Gregory R. Kaminsky, Werner Kemp, Richard A. Goldberg, Karen I. TI Syntheses and Characterization of Palladium Complexes with a Hemilabile "PCO" Pincer Ligand SO ORGANOMETALLICS LA English DT Article ID H BOND ACTIVATION; CARBON-DIOXIDE; PLATINUM(II) COMPLEXES; INSERTION REACTIONS; REACTIVITY; IRIDIUM; CO2; HYDROXIDE; CARBAMATO; METALS AB The synthesis of a new pincer ligand ((tBu)PCO = 2-(CH(2)P(t)Bu(2))-6-(CH(2)OCH(3))C(6)H(3)) is reported. This ligand has been observed to coordinate in three different modes to palladium. The (tBu)pco ligand coordinates in a monodentate fashion through the phosphine moiety in the dimeric [((tBu)PCO)Pd(Cl)(mu-Cl)](2). Bidentate coordination is observed through the phosphine and the aryl ring in the binuclear [((tBu)PCO)Pd(mu-OH)](2). The traditional tridentate coordination mode of a pincer is observed in the monomeric complex ((tBu)PCO)PdCl, wherein the ether oxygen provides the third point of attachment. Each of these novel palladium(II) complexes was characterized by NMR spectroscopy, elemental analyses, and single-crystal X-ray crystallography. A variety of other palladium(II) complexes of (tBu)PCO have also been prepared and characterized, including the hydroxide complex ((tBu)PCO)PdOH. The reactivity of the hydroxide complex with CO(2), CO, and H(2) is reported. C1 [Kemp, Richard A.] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA. [Fulmer, Gregory R.; Kaminsky, Werner; Goldberg, Karen I.] Univ Washington, Dept Chem, Seattle, WA 98195 USA. [Kemp, Richard A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA. RP Kemp, RA (reprint author), Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA. EM rakemp@unm.edu; goldberg@chem.washington.edu FU Department of Energy [DE-FG02-06ER15765] FX We thank the Department of Energy (DE-FG02-06ER15765) for support. NR 36 TC 24 Z9 24 U1 0 U2 18 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0276-7333 J9 ORGANOMETALLICS JI Organometallics PD MAR 28 PY 2011 VL 30 IS 6 BP 1627 EP 1636 DI 10.1021/om101150y PG 10 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA 736DO UT WOS:000288470900045 ER PT J AU Meyer, S Schafer, J Blumenstein, C Hopfner, P Bostwick, A McChesney, JL Rotenberg, E Claessen, R AF Meyer, S. Schaefer, J. Blumenstein, C. Hoepfner, P. Bostwick, A. McChesney, J. L. Rotenberg, E. Claessen, R. TI Strictly one-dimensional electron system in Au chains on Ge(001) revealed by photoelectron k-space mapping SO PHYSICAL REVIEW B LA English DT Article ID SPIN AB Atomic nanowires formed by Au on Ge(001) are scrutinized for the band topology of the conduction electron system by k-resolved photoemission. Two metallic electron pockets are observed. Their Fermi surface sheets form straight lines without undulations perpendicular to the chains within experimental uncertainty. The electrons hence emerge as strictly confined to one dimension. Moreover, the system is stable against a Peierls distortion down to 10 K, lending itself for studies of the spectral function. C1 [Meyer, S.; Schaefer, J.; Blumenstein, C.; Hoepfner, P.; Claessen, R.] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany. [Bostwick, A.; McChesney, J. L.; Rotenberg, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Meyer, S (reprint author), Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany. RI Bostwick, Aaron/E-8549-2010; McChesney, Jessica/K-8911-2013; Rotenberg, Eli/B-3700-2009; Claessen, Ralph/A-2045-2017 OI McChesney, Jessica/0000-0003-0470-2088; Rotenberg, Eli/0000-0002-3979-8844; Claessen, Ralph/0000-0003-3682-6325 FU DFG [Scha 1510/3-1, FOR 1162]; DOE [DE-AC03-76SF00098] FX The authors are grateful to Y. S. Kim, L. Patthey, and T. Umbach for technical support, and funding by the DFG (Grants No. Scha 1510/3-1 and No. FOR 1162) and DOE (Grant No. DE-AC03-76SF00098). NR 21 TC 25 Z9 25 U1 0 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 28 PY 2011 VL 83 IS 12 AR 121411 DI 10.1103/PhysRevB.83.121411 PG 4 WC Physics, Condensed Matter SC Physics GA 741HV UT WOS:000288855700003 ER PT J AU Sales, BC Delaire, O McGuire, MA May, AF AF Sales, Brian C. Delaire, Olivier McGuire, Michael A. May, Andrew F. TI Thermoelectric properties of Co-, Ir-, and Os-doped FeSi alloys: Evidence for strong electron-phonon coupling SO PHYSICAL REVIEW B LA English DT Article ID LOW-TEMPERATURE TRANSPORT; THERMAL CONDUCTIVITY; BAND-STRUCTURE; MONOSILICIDES; PURE AB The effects of various transition-metal dopants on the electrical and thermal transport properties of Fe(1-x)M(x)Si alloys (M = Co, Ir, Os) are reported. The maximum thermoelectric figure of merit ZT(max) is improved from 0.007 at 60 K for pure FeSi to ZT = 0.08 at 100 K for 4% Ir doping. A comparison of the thermal conductivity data among Os-, Ir-, and Co-doped alloys indicates strong electron-phonon coupling in this compound. Because of this interaction, the common approximation of dividing the total thermal conductivity into independent electronic and lattice components (kappa(total) = kappa(electronic) + kappa(lattice)) fails for these alloys. The effects of grain size on thermoelectric properties of Fe(0.96)Ir(0.04)Si alloys are also reported. The thermal conductivity can be lowered by similar to 50% with little or no effect on the electrical resistivity or Seebeck coefficient. This results in ZT(max) = 0.125 at 100 K, still approximately a factor of 5 too low for solid-state refrigeration applications. C1 [Sales, Brian C.; McGuire, Michael A.; May, Andrew F.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Delaire, Olivier] Oak Ridge Natl Lab, Div Neutron Sci, Oak Ridge, TN 37831 USA. RP Sales, BC (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RI McGuire, Michael/B-5453-2009; May, Andrew/E-5897-2011 OI McGuire, Michael/0000-0003-1762-9406; May, Andrew/0000-0003-0777-8539 FU Material Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy; ORNL; Scientific Users Facilities Division, Office of Basic Energy Sciences US DOE; D.O.E. Frontier Research Center [DE-SC00001299] FX It is a pleasure to acknowledge useful discussions with David Mandrus, David Parker, David Singh, and Paul Kent. The technical assistance of Hu Longmire, Larry Walker, and Ed Kenik is gratefully acknowledged. Research sponsored by the Material Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy. Early portions of this research were supported by the ORNL LDRD program. O.D. was sponsored partially by the Scientific Users Facilities Division, Office of Basic Energy Sciences US DOE and a D.O.E. Frontier Research Center, DE-SC00001299. NR 26 TC 32 Z9 32 U1 4 U2 41 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 28 PY 2011 VL 83 IS 12 AR 125209 DI 10.1103/PhysRevB.83.125209 PG 7 WC Physics, Condensed Matter SC Physics GA 741HV UT WOS:000288855700007 ER PT J AU Tseng, YC Ma, HJ Yang, CY Mudryk, Y Pecharsky, VK Gschneidner, KA Souza-Neto, NM Haskel, D AF Tseng, Yuan-Chieh Ma, Hao-Jhong Yang, Chao-Yao Mudryk, Yaroslav Pecharsky, Vitalij K. Gschneidner, Karl A., Jr. Souza-Neto, Narcizo M. Haskel, Daniel TI Effect of Si doping and applied pressure upon magnetostructural properties of Tb-5(SixGe1-x)(4) magnetocaloric compounds SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC CIRCULAR-DICHROISM AB The composition-and pressure-dependent magnetostructural properties of Tb-5(SixGe1-x)(4) (x = 0.4, 0.485, 0.625, and 0.7) were investigated using x-ray powder diffraction and x-ray magnetic circular dichroism in a diamond anvil cell, respectively. Substituting the smaller-size Si for Ge stabilizes a single-phase, ferromagnetic (FM) orthorhombic O(I) structure for x >= 0.7. Similarly, application of external pressure causes a canted antiferromagnetic orthorhombic O(II) sample (x=0.4) to transform into an FMO(I) phase at 4 GPa. The element- and orbital-specific x-ray absorption data indicate that the Tb 4f orbital occupation changes with external pressure, likely through 4f-5d electronic mixing, yet no changes in Tb 4f electronic structure are observed with Si doping. The results point to different mechanisms behind the enhancement of FM exchange interactions in Tb-5(SixGe1-x)(4) with chemical and applied pressure, respectively. C1 [Tseng, Yuan-Chieh; Ma, Hao-Jhong; Yang, Chao-Yao] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan. [Mudryk, Yaroslav; Pecharsky, Vitalij K.; Gschneidner, Karl A., Jr.] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA. [Pecharsky, Vitalij K.; Gschneidner, Karl A., Jr.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Souza-Neto, Narcizo M.; Haskel, Daniel] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Tseng, YC (reprint author), Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan. EM yctseng21@mail.nctu.edu.tw RI Souza-Neto, Narcizo/G-1303-2010 OI Souza-Neto, Narcizo/0000-0002-7474-8017 FU National Science Council of Taiwan [NSC 98-2112-M-009 022-MY3]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC-02-06CH11357]; U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering [DE-AC02-07CH11358] FX The authors would like to thank Hwo-Shuenn Hsu and Wei-Tsung Chuang for their help in XRD data collection at the BL01C2 beamline of the National Synchrotron Radiation Research Center at Taiwan. Work at National Chiao Tung University is supported by the National Science Council of Taiwan under Grant No. NSC 98-2112-M-009 022-MY3. Work at Argonne is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC-02-06CH11357. Work at Ames Laboratory is supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358 with Iowa State University. NR 33 TC 4 Z9 4 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 28 PY 2011 VL 83 IS 10 AR 104419 DI 10.1103/PhysRevB.83.104419 PG 7 WC Physics, Condensed Matter SC Physics GA 741HL UT WOS:000288854700003 ER PT J AU Aggarwal, MM Ahammed, Z Alakhverdyants, AV Alekseev, I Alford, J Anderson, BD Anson, CD Arkhipkin, D Averichev, GS Balewski, J Barnby, LS Beavis, DR Bellwied, R Betancourt, MJ Betts, RR Bhasin, A Bhati, AK Bichsel, H Bielcik, J Bielcikova, J Biritz, B Bland, LC Borowski, W Bouchet, J Braidot, E Brandin, AV Bridgeman, A Bruna, E Bueltmann, S Bunzarov, I Burton, TP Cai, XZ Caines, H Sanchez, MCD Cebra, D Cendejas, R Cervantes, MC Chajecki, Z Chaloupka, P Chattopadhyay, S Chen, HF Chen, JH Chen, JY Cheng, J Cherney, M Chikanian, A Choi, KE Christie, W Chung, P Codrington, MJM Corliss, R Cramer, JG Crawford, HJ Dash, S Leyva, AD De Silva, LC Debbe, RR Dedovich, TG Derevschikov, AA de Souza, RD Didenko, L Djawotho, P Dogra, SM Dong, X Drachenberg, JL Draper, JE Dunlop, JC Mazumdar, MRD Efimov, LG Elnimr, M Engelage, J Eppley, G Erazmus, B Estienne, M Eun, L Evdokimov, O Fatemi, R Fedorisin, J Fersch, RG Finch, E Fine, V Fisyak, Y Gagliardi, CA Gangadharan, DR Ganti, MS Geromitsos, A Geurts, F Ghosh, P Gorbunov, YN Gordon, A Grebenyuk, O Grosnick, D Guertin, SM Gupta, A Guryn, W Haag, B Hamed, A Han, LX Harris, JW Hays-Wehle, JP Heinz, M Heppelmann, S Hirsch, A Hjort, E Hoffmann, GW Hofman, DJ Hollis, RS Huang, B Huang, HZ Humanic, TJ Huo, L Igo, G Iordanova, A Jacobs, P Jacobs, WW Jena, C Jin, F Joseph, J Judd, EG Kabana, S Kang, K Kapitan, J Kauder, K Keane, D Kechechyan, A Kettler, D Kikola, DP Kiryluk, J Kisiel, A Kizka, V Klein, SR Knospe, AG Kocoloski, A Koetke, DD Kollegger, T Konzer, J Koralt, I Koroleva, L Korsch, W Kotchenda, L Kouchpil, V Kravtsov, P Krueger, K Krus, M Kumar, L Kurnadi, P Lamont, MAC Landgraf, JM LaPointe, S Lauret, J Lebedev, A Lednicky, R Lee, CH Lee, JH Leight, W LeVine, MJ Li, C Li, L Li, N Li, W Li, X Li, X Li, Y Li, ZM Lisa, MA Liu, F Liu, H Liu, J Ljubicic, T Llope, WJ Longacre, RS Love, WA Lu, Y Lukashov, EV Luo, X Ma, GL Ma, YG Mahapatra, DP Majka, R Mall, OI Mangotra, LK Manweiler, R Margetis, S Markert, C Masui, H Matis, HS Matulenko, YA McDonald, D McShane, TS Meschanin, A Milner, R Minaev, NG Mioduszewski, S Mitrovski, MK Mohanty, B Mondal, MM Morozov, B Morozov, DA Munhoz, MG Naglis, M Nandi, BK Nayak, TK Netrakanti, PK Ng, MJ Nogach, LV Nurushev, SB Odyniec, G Ogawa, A Ohlson, A Okorokov, V Oldag, EW Olson, D Pachr, M Page, BS Pal, SK Pandit, Y Panebratsev, Y Pawlak, T Peitzmann, T Perkins, C Peryt, W Phatak, SC Pile, P Planinic, M Ploskon, MA Pluta, J Plyku, D Poljak, N Poskanzer, AM Potukuchi, BVKS Powell, CB Prindle, D Pruneau, C Pruthi, NK Pujahari, PR Putschke, J Qiu, H Raniwala, R Raniwala, S Ray, RL Redwine, R Reed, R Ritter, HG Roberts, JB Rogachevskiy, OV Romero, JL Rose, A Ruan, L Sakai, S Sakrejda, I Sakuma, T Salur, S Sandweiss, J Sangaline, E Schambach, J Scharenberg, RP Schmah, AM Schmitz, N Schuster, TR Seele, J Seger, J Selyuzhenkov, I Seyboth, P Shahaliev, E Shao, M Sharma, M Shi, SS Sichtermann, EP Simon, F Singaraju, RN Skoby, MJ Smirnov, N Sorensen, P Spinka, HM Srivastava, B Stanislaus, TDS Staszak, D Stevens, JR Stock, R Strikhanov, M Stringfellow, B Suaide, AAP Suarez, MC Subba, NL Sumbera, M Sun, XM Sun, Y Sun, Z Surrow, B Svirida, DN Symons, TJM de Toledo, AS Takahashi, J Tang, AH Tang, Z Tarini, LH Tarnowsky, T Thein, D Thomas, JH Tian, J Timmins, AR Timoshenko, S Tlusty, D Tokarev, M Tram, VN Trentalange, S Tribble, RE Tsai, OD Ullrich, T Underwood, DG Van Buren, G van Leeuwen, M van Nieuwenhuizen, G Vanfossen, JA Varma, R Vasconcelos, GMS Vasiliev, AN Videbaek, F Viyogi, YP Vokal, S Voloshin, SA Wada, M Walker, M Wang, F Wang, G Wang, H Wang, JS Wang, Q Wang, XL Wang, Y Webb, G Webb, JC Westfall, GD Whitten, C Wieman, H Wissink, SW Witt, R Wu, YF Xie, W Xu, H Xu, N Xu, QH Xu, W Xu, Y Xu, Z Xue, L Yang, Y Yepes, P Yip, K Yoo, IK Yue, Q Zawisza, M Zbroszczyk, H Zhan, W Zhang, JB Zhang, S Zhang, WM Zhang, XP Zhang, Y Zhang, ZP Zhao, J Zhong, C Zhou, W Zhu, X Zhu, YH Zoulkarneev, R Zoulkarneeva, Y AF Aggarwal, M. M. Ahammed, Z. Alakhverdyants, A. V. Alekseev, I. Alford, J. Anderson, B. D. Anson, C. D. Arkhipkin, D. Averichev, G. S. Balewski, J. Barnby, L. S. Beavis, D. R. Bellwied, R. Betancourt, M. J. Betts, R. R. Bhasin, A. Bhati, A. K. Bichsel, H. Bielcik, J. Bielcikova, J. Biritz, B. Bland, L. C. Borowski, W. Bouchet, J. Braidot, E. Brandin, A. V. Bridgeman, A. Bruna, E. Bueltmann, S. Bunzarov, I. Burton, T. P. Cai, X. Z. Caines, H. Sanchez, M. Calderon de la Barca Cebra, D. Cendejas, R. Cervantes, M. C. Chajecki, Z. Chaloupka, P. Chattopadhyay, S. Chen, H. F. Chen, J. H. Chen, J. Y. Cheng, J. Cherney, M. Chikanian, A. Choi, K. E. Christie, W. Chung, P. Codrington, M. J. M. Corliss, R. Cramer, J. G. Crawford, H. J. Dash, S. Leyva, A. Davila De Silva, L. C. Debbe, R. R. Dedovich, T. G. Derevschikov, A. A. Derradi de Souza, R. Didenko, L. Djawotho, P. Dogra, S. M. Dong, X. Drachenberg, J. L. Draper, J. E. Dunlop, J. C. Mazumdar, M. R. Dutta Efimov, L. G. Elnimr, M. Engelage, J. Eppley, G. Erazmus, B. Estienne, M. Eun, L. Evdokimov, O. Fatemi, R. Fedorisin, J. Fersch, R. G. Finch, E. Fine, V. Fisyak, Y. Gagliardi, C. A. Gangadharan, D. R. Ganti, M. S. Geromitsos, A. Geurts, F. Ghosh, P. Gorbunov, Y. N. Gordon, A. Grebenyuk, O. Grosnick, D. Guertin, S. M. Gupta, A. Guryn, W. Haag, B. Hamed, A. Han, L-X. Harris, J. W. Hays-Wehle, J. P. Heinz, M. Heppelmann, S. Hirsch, A. Hjort, E. Hoffmann, G. W. Hofman, D. J. Hollis, R. S. Huang, B. Huang, H. Z. Humanic, T. J. Huo, L. Igo, G. Iordanova, A. Jacobs, P. Jacobs, W. W. Jena, C. Jin, F. Joseph, J. Judd, E. G. Kabana, S. Kang, K. Kapitan, J. Kauder, K. Keane, D. Kechechyan, A. Kettler, D. Kikola, D. P. Kiryluk, J. Kisiel, A. Kizka, V. Klein, S. R. Knospe, A. G. Kocoloski, A. Koetke, D. D. Kollegger, T. Konzer, J. Koralt, I. Koroleva, L. Korsch, W. Kotchenda, L. Kouchpil, V. Kravtsov, P. Krueger, K. Krus, M. Kumar, L. Kurnadi, P. Lamont, M. A. C. Landgraf, J. M. LaPointe, S. Lauret, J. Lebedev, A. Lednicky, R. Lee, C-H. Lee, J. H. Leight, W. LeVine, M. J. Li, C. Li, L. Li, N. Li, W. Li, X. Li, X. Li, Y. Li, Z. M. Lisa, M. A. Liu, F. Liu, H. Liu, J. Ljubicic, T. Llope, W. J. Longacre, R. S. Love, W. A. Lu, Y. Lukashov, E. V. Luo, X. Ma, G. L. Ma, Y. G. Mahapatra, D. P. Majka, R. Mall, O. I. Mangotra, L. K. Manweiler, R. Margetis, S. Markert, C. Masui, H. Matis, H. S. Matulenko, Yu. A. McDonald, D. McShane, T. S. Meschanin, A. Milner, R. Minaev, N. G. Mioduszewski, S. Mitrovski, M. K. Mohanty, B. Mondal, M. M. Morozov, B. Morozov, D. A. Munhoz, M. G. Naglis, M. Nandi, B. K. Nayak, T. K. Netrakanti, P. K. Ng, M. J. Nogach, L. V. Nurushev, S. B. Odyniec, G. Ogawa, A. Ohlson, A. Okorokov, V. Oldag, E. W. Olson, D. Pachr, M. Page, B. S. Pal, S. K. Pandit, Y. Panebratsev, Y. Pawlak, T. Peitzmann, T. Perkins, C. Peryt, W. Phatak, S. C. Pile, P. Planinic, M. Ploskon, M. A. Pluta, J. Plyku, D. Poljak, N. Poskanzer, A. M. Potukuchi, B. V. K. S. Powell, C. B. Prindle, D. Pruneau, C. Pruthi, N. K. Pujahari, P. R. Putschke, J. Qiu, H. Raniwala, R. Raniwala, S. Ray, R. L. Redwine, R. Reed, R. Ritter, H. G. Roberts, J. B. Rogachevskiy, O. V. Romero, J. L. Rose, A. Ruan, L. Sakai, S. Sakrejda, I. Sakuma, T. Salur, S. Sandweiss, J. Sangaline, E. Schambach, J. Scharenberg, R. P. Schmah, A. M. Schmitz, N. Schuster, T. R. Seele, J. Seger, J. Selyuzhenkov, I. Seyboth, P. Shahaliev, E. Shao, M. Sharma, M. Shi, S. S. Sichtermann, E. P. Simon, F. Singaraju, R. N. Skoby, M. J. Smirnov, N. Sorensen, P. Spinka, H. M. Srivastava, B. Stanislaus, T. D. S. Staszak, D. Stevens, J. R. Stock, R. Strikhanov, M. Stringfellow, B. Suaide, A. A. P. Suarez, M. C. Subba, N. L. Sumbera, M. Sun, X. M. Sun, Y. Sun, Z. Surrow, B. Svirida, D. N. Symons, T. J. M. Szanto de Toledo, A. Takahashi, J. Tang, A. H. Tang, Z. Tarini, L. H. Tarnowsky, T. Thein, D. Thomas, J. H. Tian, J. Timmins, A. R. Timoshenko, S. Tlusty, D. Tokarev, M. Tram, V. N. Trentalange, S. Tribble, R. E. Tsai, O. D. Ullrich, T. Underwood, D. G. Van Buren, G. van Leeuwen, M. van Nieuwenhuizen, G. Vanfossen, J. A., Jr. Varma, R. Vasconcelos, G. M. S. Vasiliev, A. N. Videbaek, F. Viyogi, Y. P. Vokal, S. Voloshin, S. A. Wada, M. Walker, M. Wang, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Webb, G. Webb, J. C. Westfall, G. D. Whitten, C., Jr. Wieman, H. Wissink, S. W. Witt, R. Wu, Y. F. Xie, W. Xu, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xue, L. Yang, Y. Yepes, P. Yip, K. Yoo, I-K. Yue, Q. Zawisza, M. Zbroszczyk, H. Zhan, W. Zhang, J. B. Zhang, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhao, J. Zhong, C. Zhou, W. Zhu, X. Zhu, Y. H. Zoulkarneev, R. Zoulkarneeva, Y. CA STAR Collaboration TI Scaling properties at freeze-out in relativistic heavy-ion collisions SO PHYSICAL REVIEW C LA English DT Article ID QCD; THERMODYNAMICS; SEARCH AB Identified charged pion, kaon, and proton spectra are used to explore the system size dependence of bulk freeze-out properties in Cu + Cu collisions at root s(NN) = 200 and 62.4 GeV. The data are studied with hydrodynamically motivated blast-wave and statistical model frameworks in order to characterize the freeze-out properties of the system. The dependence of freeze-out parameters on beam energy and collision centrality is discussed. Using the existing results from Au + Au and pp collisions, the dependence of freeze-out parameters on the system size is also explored. This multidimensional systematic study furthers our understanding of the QCD phase diagram revealing the importance of the initial geometrical overlap of the colliding ions. The analysis of Cu + Cu collisions expands the system size dependence studies from Au + Au data with detailed measurements in the smaller system. The systematic trends of the bulk freeze-out properties of charged particles is studied with respect to the total charged particle multiplicity at midrapidity, exploring the influence of initial state effects. C1 [Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Barnby, L. S.] Univ Birmingham, Birmingham, W Midlands, England. [Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dunlop, J. C.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ogawa, A.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Crawford, H. J.; Engelage, J.; Judd, E. G.; Ng, M. J.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Sanchez, M. Calderon de la Barca; Cebra, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.; Salur, S.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA. [Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Sakai, S.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil. [Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Hollis, R. S.; Iordanova, A.; Kauder, K.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA. [Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA. [Bielcik, J.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, CZ-11519 Prague, Czech Republic. [Bielcikova, J.; Chaloupka, P.; Chung, P.; Kapitan, J.; Kouchpil, V.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, CZ-25068 Rez, Czech Republic. [Kollegger, T.; Mitrovski, M. K.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, Frankfurt, Germany. [Dash, S.; Jena, C.; Mahapatra, D. P.; Phatak, S. C.] Inst Phys, Bhubaneswar 751005, Orissa, India. [Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Stevens, J. R.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA. [Alekseev, I.; Koroleva, L.; Kurnadi, P.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia. [Bhasin, A.; Dogra, S. M.; Gupta, A.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India. [Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. 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[Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Mondal, M. M.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India. [Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland. [Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.] Univ Washington, Seattle, WA 98195 USA. [Bellwied, R.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Timmins, A. R.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA. [Chen, J. Y.; Li, N.; Li, Z. M.; Liu, F.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China. [Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Heinz, M.; Knospe, A. G.; Majka, R.; Ohlson, A.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA. [Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia. RP Aggarwal, MM (reprint author), Panjab Univ, Chandigarh 160014, India. RI Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013; Barnby, Lee/G-2135-2010; Pandit, Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Takahashi, Jun/B-2946-2012; Planinic, Mirko/E-8085-2012; Yang, Yanyun/B-9485-2014; Bielcikova, Jana/G-9342-2014; Yoo, In-Kwon/J-6222-2012; Peitzmann, Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Yip, Kin/D-6860-2013; Xue, Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Alekseev, Igor/J-8070-2014; Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu, Wenqin/H-7553-2014; Bruna, Elena/C-4939-2014; Dogra, Sunil /B-5330-2013; Chaloupka, Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017 OI van Leeuwen, Marco/0000-0002-5222-4888; Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Fisyak, Yuri/0000-0002-3151-8377; Mohanty, Bedangadas/0000-0001-9610-2914; Bhasin, Anju/0000-0002-3687-8179; Sorensen, Paul/0000-0001-5056-9391; Thomas, James/0000-0002-6256-4536; Barnby, Lee/0000-0001-7357-9904; Pandit, Yadav/0000-0003-2809-7943; Takahashi, Jun/0000-0002-4091-1779; Yang, Yanyun/0000-0002-5982-1706; Peitzmann, Thomas/0000-0002-7116-899X; Yip, Kin/0000-0002-8576-4311; Xue, Liang/0000-0002-2321-9019; Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323; Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991; Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210; Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Office of NP within the US DOE Office of Science; Office of HEP within the US DOE Office of Science; US NSF; Sloan Foundation; DFG of Germany; CNRS/IN2P3; STFC; EPSRC of the United Kingdom; FAPESP CNPq of Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC; CAS; MoST; MoE of China; MSMT of the Czech Republic; FOM; NWO of the Netherlands; DAE; DST; CSIR of India; Polish Ministry of Sci. and Higher Ed.; Ministry of Sci., Ed. and Sports of the Rep. of Croatia; Russian Ministry of Sci. and Tech.; RosAtom of Russia; Korea Research Foundation; GA FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Offices of NP and HEP within the US DOE Office of Science, the US NSF, the Sloan Foundation, the DFG cluster of excellence "Origin and Structure of the Universe" of Germany, CNRS/IN2P3, STFC and EPSRC of the United Kingdom, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of Sci. and Higher Ed., Korea Research Foundation, Ministry of Sci., Ed. and Sports of the Rep. of Croatia, Russian Ministry of Sci. and Tech. and RosAtom of Russia. NR 26 TC 16 Z9 16 U1 0 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD MAR 28 PY 2011 VL 83 IS 3 AR 034910 DI 10.1103/PhysRevC.83.034910 PG 12 WC Physics, Nuclear SC Physics GA 741IA UT WOS:000288856200005 ER PT J AU Singh, R Al-Naib, IAI Koch, M Zhang, WL AF Singh, Ranjan Al-Naib, Ibraheem A. I. Koch, Martin Zhang, Weili TI Sharp Fano resonances in THz metamaterials SO OPTICS EXPRESS LA English DT Article ID PLANAR TERAHERTZ METAMATERIALS; SPLIT-RING RESONATORS; INDUCED TRANSPARENCY; LASING SPASER; DEVICES AB We report on the occurrence of sharp Fano resonances in planar terahertz metamaterials by introducing a weak asymmetry in a two gap split ring resonator. As the structural symmetry of the metamaterial is broken a Fano resonance evolves in the low-frequency flank of the symmetric fundamental dipole mode resonance. This Fano resonance can have much higher Q factors than that known from single gap split ring resonators. Supporting simulations indicate a Q factor of 50 for lowest degree of asymmetry. The Q factor decreases exponentially with increasing asymmetry. Hence, minute structural variations allow for a tuning of the Fano resonance. Such sharp resonances could be exploited for biochemical sensing. Besides, the strong current oscillations excited at the Fano resonance frequency could lead to the design of novel terahertz narrow band emitters. (C) 2011 Optical Society of America C1 [Singh, Ranjan; Zhang, Weili] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA. [Singh, Ranjan] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. [Al-Naib, Ibraheem A. I.; Koch, Martin] Univ Marburg, Dept Phys, D-35032 Marburg, Germany. RP Singh, R (reprint author), Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA. EM ranjan@lanl.gov RI Al-Naib, Ibraheem/A-2344-2009; Singh, Ranjan/B-4091-2010; Zhang, Weili/C-5416-2011; OI Singh, Ranjan/0000-0001-8068-7428; Zhang, Weili/0000-0002-8591-0200; Al-Naib, Ibraheem/0000-0002-7499-0655 FU U.S. National Science Foundation FX This work was partially supported by the U.S. National Science Foundation. NR 54 TC 155 Z9 159 U1 19 U2 155 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD MAR 28 PY 2011 VL 19 IS 7 BP 6312 EP 6319 DI 10.1364/OE.19.006312 PG 8 WC Optics SC Optics GA 741GR UT WOS:000288852700063 PM 21451657 ER PT J AU McNeil, BWJ Thompson, NR Dunning, DJ Sheehy, B AF McNeil, B. W. J. Thompson, N. R. Dunning, D. J. Sheehy, B. TI High harmonic attosecond pulse train amplification in a free electron laser SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID GENERATION AB It is shown using three-dimensional simulations that the temporal structure of an attosecond pulse train, such as that generated via high harmonic generation in noble gases, may be retained in a free electron laser amplifier through to saturation using a mode-locked optical klystron configuration. At wavelengths of similar to 12 nm, a train of attosecond pulses of widths similar to 300 as with peak powers in excess of 1 GW are predicted. C1 [McNeil, B. W. J.; Thompson, N. R.; Dunning, D. J.] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland. [Thompson, N. R.; Dunning, D. J.] Cockcroft Inst, STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England. [Thompson, N. R.; Dunning, D. J.] ASTeC, Warrington WA4 4AD, Cheshire, England. [Sheehy, B.] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. RP McNeil, BWJ (reprint author), Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland. EM b.w.j.mcneil@strath.ac.uk OI McNeil, Brian/0000-0002-7267-611X FU Brookhaven Science Associates, LLC [DE-AC02-98CH10886]; US Department of Energy FX This work received support from Brookhaven Science Associates, LLC under contract no DE-AC02-98CH10886 with the US Department of Energy. NR 23 TC 4 Z9 4 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD MAR 28 PY 2011 VL 44 IS 6 AR 065404 DI 10.1088/0953-4075/44/6/065404 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 733FX UT WOS:000288249700014 ER PT J AU Aden, A AF Aden, Andy TI Economic analysis of advanced biofuels from lignocellulosic biomass SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Aden, Andy] Natl Bioenergy Ctr, Natl Renewable Energy Lab, Golden, CO USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 284-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802686 ER PT J AU Agarwal, P AF Agarwal, Pratul TI Non-homologous enzymes catalyzing same chemistry: Insights into linkage between enzyme fold, flexibility and catalysis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Agarwal, Pratul] Oak Ridge Natl Lab, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 321-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804058 ER PT J AU Alam, K Dellinger, J Martin, L AF Alam, Kathleen Dellinger, Jennifer Martin, Laura TI Accelerated aging of phthalate-saturated cellulose paper using infrared spectroscopy and chemometrics SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Alam, Kathleen; Dellinger, Jennifer; Martin, Laura] Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 16-CARB PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802303 ER PT J AU Albada, HB Giordano, A Zagermann, J Metzler-Nolte, N Fish, RH AF Albada, H. Bauke Giordano, Andrea Zagermann, Johannes Metzler-Nolte, Nils Fish, Richard H. TI Highly regioselective reactions of [Cp*Rh(H2O)(3)](OTf)(2) with peptides, Leu-Enkephalin, neurotensin, octreotide, and an autophosphorylation sequence of the epidermal growth factor receptor, in water, as a function of pH SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Ruhr Univ Bochum, Dept Chem & Biochem, Bochum, Germany. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RI Metzler-Nolte, Nils/H-7626-2014 OI Metzler-Nolte, Nils/0000-0001-8111-9959 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 144-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805527 ER PT J AU Alesi, WR Kitchin, J AF Alesi, Walter Richard, Jr. Kitchin, John TI Determining the conditions necessary for optimal CO2 capture of solid sorbents SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Natl Energy Technol Lab, Pittsburgh, PA USA. Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 208-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804575 ER PT J AU Alexandrov, V Skomurski, F Becker, U Shvareva, T Navrotsky, A Asta, M AF Alexandrov, Vitali Skomurski, Frances Becker, Udo Shvareva, Tatiana Navrotsky, Alexandra Asta, Mark TI First-principles study of surface stability and water adsorption on ThO2 surfaces SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. Univ Calif Davis, NEAT ORU, Davis, CA 95616 USA. Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA. Univ Calif Davis, Peter A Rock Thermochem Lab, Davis, CA 95616 USA. NR 0 TC 0 Z9 0 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 81-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806324 ER PT J AU Anderson, AS Schmidt, JG Dattelbaum, AM Mukundan, H Swanson, BI AF Anderson, Aaron S. Schmidt, Jurgen G. Dattelbaum, Andrew M. Mukundan, Harshini Swanson, Basil I. TI Robust silane-based, PEG-modified sensing films: A versatile bio-inorganic interface SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Los Alamos Natl Lab, CPCS Phys Chem & Appl Spect, Los Alamos, NM USA. Los Alamos Natl Lab, Biosecur & Publ Hlth B7, Los Alamos, NM USA. Los Alamos Natl Lab, MPA CINT Ctr Integrated Nanotechnol, Los Alamos, NM USA. Los Alamos Natl Lab, C DO Chem Div, Los Alamos, NM USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 579-ORGN PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806534 ER PT J AU Anderson, P Elmer, S Turner, K De Sapio, V Schoeniger, J Roe, D AF Anderson, Peter Elmer, Sidney Turner, Kevin De Sapio, Vincent Schoeniger, Joe Roe, Diana TI Classifying proteins by common conserved motifs to control ligand binding specificity SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Anderson, Peter; Elmer, Sidney; Turner, Kevin; De Sapio, Vincent; Schoeniger, Joe; Roe, Diana] Sandia Natl Labs, Dept Syst Biol, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 170-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804171 ER PT J AU Andrews, JC Meirer, F Cabana, J Liu, YJ Pianetta, P AF Andrews, Joy C. Meirer, Florian Cabana, Jordi Liu, Yijin Pianetta, Piero TI 3D nanoscale chemical imaging of Li-ion battery electrodes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA USA. Fdn Bruno Kessler, MiNA Lab, Povo, Italy. Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. RI Meirer, Florian/H-7642-2016 OI Meirer, Florian/0000-0001-5581-5790 NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 200-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982801471 ER PT J AU Appel, AM Linehan, JC Boro, BJ Galan, BR DuBois, DL AF Appel, Aaron M. Linehan, John C. Boro, Brian J. Galan, Brandon R. DuBois, Daniel L. TI Molecular catalysts for the reduction of CO2 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Appel, Aaron M.; Linehan, John C.; Boro, Brian J.; Galan, Brandon R.; DuBois, Daniel L.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 121-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804561 ER PT J AU Armstrong, CR Nyman, M Shvareva, T Navrotsky, A AF Armstrong, Christopher R. Nyman, May Shvareva, Tatiana Navrotsky, Alexandra TI Energetics of monomeric alkali-uranyl-peroxide compounds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Davis, Peter A Rock Thermochem Lab, Davis, CA 95616 USA. Univ Calif Davis, NEAT ORU, Davis, CA 95616 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 1 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 23-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806297 ER PT J AU Aryal, BP Lewis, DG Paunesku, T Lai, B Vogt, S Woloschak, GE He, C Jensen, MP AF Aryal, Baikuntha P. Lewis, Drew Gorman Paunesku, Tatjana Lai, Barry Vogt, Stefan Woloschak, Gayle E. He, Chuan Jensen, Mark P. TI Plutonium uptake and distribution in mammalian cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Chicago, Dept Chem, Chicago, IL 60637 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Northwestern Univ, Dept Radiat Oncol & Radiol, Chicago, IL 60611 USA. Univ Wasington, Seattle, WA USA. RI Paunesku, Tatjana/A-3488-2017; Woloschak, Gayle/A-3799-2017 OI Paunesku, Tatjana/0000-0001-8698-2938; Woloschak, Gayle/0000-0001-9209-8954 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 755-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805860 ER PT J AU Aryal, BP Brugarolas, P He, C AF Aryal, Baikuntha P. Brugarolas, Pedro He, Chuan TI Direct labeling of proteins with radionuclides SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Chicago, Chicago, IL 60637 USA. Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 45-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805022 ER PT J AU Assary, RS Curtiss, LA Paul, RC Greeley, J AF Assary, Rajeev Surendran Curtiss, Larry A. Paul, Redfern C. Greeley, Jeff TI Toward the molecular level understanding of reactions involved in the biomass catalysis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Northwestern Univ, Evanston, IL USA. Argonne Natl Labs, Div Mat Sci, Evanston, IL USA. RI Surendran Assary, Rajeev/E-6833-2012 OI Surendran Assary, Rajeev/0000-0002-9571-3307 NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 39-CARB PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802307 ER PT J AU Baker, LR Hervier, A Seo, H Somorjai, GA AF Baker, L. Robert Hervier, Antoine Seo, Hyungtak Somorjai, Gabor A. TI Electronic mediation of surface chemistry at the metal-oxide interface SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 55-CATL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802428 ER PT J AU Bashir, S Liu, DJ Liu, JBL AF Bashir, Sajid Liu, Di-Jia Liu, Jingbo L. TI Building better cathode catalysis for fuel cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Texas A&M Univ, Kingsville, TX USA. Argonne Natl Lab, Div Chem Sci & Engn, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 19-IEC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804911 ER PT J AU Baumann, T Worsley, M Satcher, J AF Baumann, Theodore Worsley, Marcus Satcher, Joe, Jr. TI Novel carbon aerogel architectures for energy storage applications SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Baumann, Theodore; Worsley, Marcus; Satcher, Joe, Jr.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 3 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 418-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982807369 ER PT J AU Beketayev, K Weber, G Haranczyk, M AF Beketayev, Kenes Weber, Gunther Haranczyk, Maciej TI Visualization of topology of transformation pathways in complex chemical systems using Metro Maps SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Beketayev, Kenes; Weber, Gunther; Haranczyk, Maciej] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 233-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804223 ER PT J AU Bennett, ME Despotopulos, J Henderson, RA Shaughnessy, DA Sudowe, R AF Bennett, Megan E. Despotopulos, John Henderson, Roger A. Shaughnessy, Dawn A. Sudowe, Ralf TI Extraction chromatographic studies of Rf using crown ether based resins SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Nevada, Las Vegas, NV 89154 USA. Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 63-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806339 ER PT J AU Benson, MT Stewart, FF Klaehn, JR Christenson, M Sing, N AF Benson, Michael T. Stewart, Frederick F. Klaehn, John R. Christenson, Michael Sing, Neil TI Novel triazine materials as CO2 sorbents SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Benson, Michael T.; Stewart, Frederick F.; Klaehn, John R.; Christenson, Michael; Sing, Neil] Idaho Natl Lab, Dept Interfacial Chem, Idaho Falls, ID 83415 USA. RI Benson, Michael/B-8855-2017 OI Benson, Michael/0000-0003-4927-614X NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 307-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804590 ER PT J AU Bergman, RG AF Bergman, Robert G. TI Selective stoichiometric and catalytic reactions in water-soluble host-guest supramolecular systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Div Chem Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 63-ORGN PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806464 ER PT J AU Beste, A Buchanan, AC AF Beste, Ariana Buchanan, Archibald C. TI Challenges in the computation of rate constants for lignin model compounds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Beste, Ariana; Buchanan, Archibald C.] Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 1 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 270-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802703 ER PT J AU Bolin, TB Heald, S Winans, R Stair, P Miller, J AF Bolin, Trudy B. Heald, Steven Winans, Randall Stair, Peter Miller, Jeffrey TI Catalyst center at the Advanced Photon Source beamline 9-BM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Argonne Natl Lab, Dept Chem Engn, Argonne, IL 60439 USA. Northwestern Univ, Dept Chem, Evanston, IL USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 176-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804694 ER PT J AU Borole, AP Ichihashi, O Hamiloton, CY AF Borole, Abhijeet P. Ichihashi, Osamu Hamiloton, Choo Y. TI Chronoamperometric investigation of electro-active biofilms in biorefinery MFCs SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Borole, Abhijeet P.; Ichihashi, Osamu; Hamiloton, Choo Y.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RI Borole, AP/F-3933-2011 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 436-BIOT PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802219 ER PT J AU Bowden, M Karkamkar, A Kim, H Cho, H Hess, N Autrey, T AF Bowden, Mark Karkamkar, Abhi Kim, Hyunjeong Cho, Herman Hess, Nancy Autrey, Tom TI Experimental approaches to study the properties of energy storage materials in nanoconfined environments: Modification of ammonia borane in porous silica SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 395-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982803687 ER PT J AU Boyle, TJ Bell, N Anderson, BJ Celina, M AF Boyle, TImothy J. Bell, Nelson Anderson, Benjamin J. Celina, Mathias TI Improved flywheel nanocomposite materials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Boyle, TImothy J.; Bell, Nelson; Anderson, Benjamin J.; Celina, Mathias] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 236-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805468 ER PT J AU Boyle, TJ Ottley, LAM Velasquez, A Dimos, BA AF Boyle, Timothy J. Ottley, Leigh Anna M. Velasquez, Andrew Dimos, Brad A. TI Lanthanide alkoxides for production of fluorescent nanomaterials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Boyle, Timothy J.; Ottley, Leigh Anna M.; Velasquez, Andrew; Dimos, Brad A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 1017-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802772 ER PT J AU Bullock, RM Kilgore, UJ Roberts, JAS Helm, ML DuBois, DL AF Bullock, R. Morris Kilgore, Uriah J. Roberts, John A. S. Helm, Monte L. DuBois, Daniel L. TI Electrocatalysts of the production of hydrogen by Ni(diphosphine)(2)(2+) complexes with pendant amines as proton relays SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Bullock, R. Morris; Kilgore, Uriah J.; Roberts, John A. S.; Helm, Monte L.; DuBois, Daniel L.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 81-CATL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802439 ER PT J AU Burton, PD Boyle, TJ Datye, AK AF Burton, Patrick D. Boyle, Timothy J. Datye, Abhaya K. TI Synthesis of Pd nanoparticles without capping agents: Novel catalysts for selective acetylene hydrogenation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Unviers New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM USA. Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 44-CATL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802419 ER PT J AU Busani, T Tian, YME Martin, KE Shelnutt, JA AF Busani, Tito Tian, Yongming E. Martin, Kathleen E. Shelnutt, John A. TI Structural and electrical studies of novel photoconductive self-assembled porphyrin structures SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Nova Lisboa, Dept CiAancia Mat CENIMAT I3N, Caparica, Portugal. Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87185 USA. Univ New Mexico, Ctr Microengineered Mat, Albuquerque, NM 87131 USA. Univ Georgia, Dept Chem, Athens, GA 30602 USA. RI Tian, Yongming/B-9720-2009 NR 0 TC 0 Z9 0 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 53-CATL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802427 ER PT J AU Cao, B Shi, L Brown, R Xiong, YJ Fredrickson, JK Romine, MF Marshall, MJ Lipton, MS Beyenal, H AF Cao, Bin Shi, Liang Brown, Roslyn Xiong, Yijia Fredrickson, Jim K. Romine, Margaret F. Marshall, Matthew J. Lipton, Mary S. Beyenal, Haluk TI Extracellular polymeric substances of Shewanella biofilms contain redox active components with potential roles in extracellular electron transfer SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 288-BIOT PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802164 ER PT J AU Carothers, JM Goler, JA Juminaga, A Keasling, JD AF Carothers, James M. Goler, Jonathan A. Juminaga, Alex Keasling, Jay D. TI Design-driven approaches for engineering RNA-regulated pathway controls SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Berkeley, Calif Inst Quantitat Biosci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley Ctr Synthet Biol, Berkeley, CA 94720 USA. DOE Joint BioEnergy Inst, Berkeley, CA USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RI Keasling, Jay/J-9162-2012 OI Keasling, Jay/0000-0003-4170-6088 NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 162-BIOT PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802051 ER PT J AU Cave, RJ Edwards, ST Kouzelos, JA Newton, MD AF Cave, Robert J. Edwards, Stephen T. Kouzelos, J. Andrew Newton, Marshall D. TI Multi-state generalized Mulliken-Hush analysis of a series of model compounds: Pathways in complex systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Harvey Mudd Coll, Dept Chem, Claremont, CA 91711 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 2 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 186-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806744 ER PT J AU Celina, MC Giron, NH Rojo, MR Trujillo, AB AF Celina, Mathew C. Giron, Nicholas H. Rojo, Manuel R. Trujillo, Ana B. TI Cure reactions of advanced composite resins explored by high tempereature micro ATR-IR SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Celina, Mathew C.; Giron, Nicholas H.; Rojo, Manuel R.; Trujillo, Ana B.] Sandia Natl Labs, Organ Mat Dept, Albuquerque, NM USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 211-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982807207 ER PT J AU Chai, MH Alejandro, P Gorski, EK Liu, Y AF Chai, Minghui Alejandro, Phillip Gorski, Ewa K. Liu, Yi TI NMR characterization on the interaction between polycyclic donor and acceptor via the enhancement of electron transfer SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Cent Michigan Univ, Dept Chem, Mt Pleasant, MI 48859 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 246-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982801311 ER PT J AU Chang, CEA Kang, M Roberts, C Cheng, YH AF Chang, Chia-en A. Kang, Myungshim Roberts, Christopher Cheng, Yuhui TI Gating, crowding, and intermolecular interactions in ligand-protein association: Modeling with multiscale simulation methods SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. RI Kang, Myungshim /K-5331-2014 OI Kang, Myungshim /0000-0002-4778-8240 NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 319-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804056 ER PT J AU Chatterjee, S Edwards, MK Wang, ZM Del Negro, AS Bryan, SA Krause, JA Kaval, N Heineman, WR Seliskar, CJ AF Chatterjee, Sayandev Edwards, Matthew K. Wang, Zheming Del Negro, Andrew S. Bryan, Samuel A. Krause, Jeanette A. Kaval, Necati Heineman, William R. Seliskar, Carl J. TI Spectroelectrochemical sensor for the detection of pertechnetate (TcO4-) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA. RI Wang, Zheming/E-8244-2010 OI Wang, Zheming/0000-0002-1986-4357 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 84-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982801366 ER PT J AU Checco, A Hofmann, T DiMasi, E Black, CT Ocko, BM AF Checco, Antonio Hofmann, Tommy DiMasi, Elaine Black, Charles T. Ocko, Benjamin M. TI Morphology of air nanobubbles trapped at superhydrophobic nanopattened surfaces SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 88-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982803603 ER PT J AU Chen, ZW Tran, HM Hadi, MZ Simmons, BA Sale, KL AF Chen, Zhiwei Tran, Huu M. Hadi, Masood Z. Simmons, Blake A. Sale, Kenneth L. TI Directed evolution of a thermophilic cellulase for biomass hydrolysis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Joint BioEnergy Inst, Emeryville, CA USA. Sandia Natl Labs, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 244-BIOT PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802124 ER PT J AU Cheng, L Curtiss, L Assary, RS Greeley, J AF Cheng, Lei Curtiss, Larry Assary, Rajeev Surendran Greeley, Jefferey TI Quantum chemistry studies of selective fructose dehydration on H-ZSM5 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL USA. RI Cheng, Lei/J-9014-2012; Surendran Assary, Rajeev/E-6833-2012 OI Surendran Assary, Rajeev/0000-0002-9571-3307 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 120-CARB PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982802356 ER PT J AU Chennubhotla, CS Ramanathan, A Savol, A Agarwal, PK AF Chennubhotla, Chakra S. Ramanathan, Arvind Savol, Andrej Agarwal, Pratul K. TI Identifying conformational sub-states directly relevant to protein function SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Computat Biol Inst, Oak Ridge, TN USA. Univ Pittsburgh, Dept Computat & Syst Biol, Pittsburgh, PA USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 308-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804064 ER PT J AU Cho, S Castellano, FN Chen, LX AF Cho, Sung Castellano, Felix N. Chen, Lin X. TI Electronic coherence in metal-metal-to-ligand-charge-transfer transitions of a dimetallic complex revealed by ultrafast transient absorption anisotropy SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. Northwestern Univ, Dept Chem, Evanston, IL USA. Bowling Green State Univ, Dept Chem, Bowling Green, OH 43403 USA. Bowling Green State Univ, Ctr Photochem Sci, Bowling Green, OH 43403 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 313-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982806844 ER PT J AU Choi, CL Alivisatos, AP AF Choi, Charina L. Alivisatos, A. Paul TI Tetrapod quantum dots as fluorescent probes of mechanical stress in materials and biological systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Choi, Charina L.; Alivisatos, A. Paul] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 677-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805093 ER PT J AU Choi, S Gray, ML Eisenberger, PM Jones, CW AF Choi, Sunho Gray, McMahan L. Eisenberger, Peter M. Jones, Christopher W. TI Solid-supported amines for extraction of CO2 from ultra-low concentration sources such as ambient air SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA. Global Thermostat LLC, New York, NY USA. US DOE, Natl Energy Technol Lab, Pittsburgh, PA USA. NR 0 TC 0 Z9 0 U1 1 U2 10 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 241-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804576 ER PT J AU Christensen, ST Hurst, KE Bult, JB Olson, TS Dameron, AA Ginley, DS Dinh, HN Gennett, T AF Christensen, Steven T. Hurst, Katherine E. Bult, Justin B. Olson, Tim S. Dameron, Arrelaine A. Ginley, David S. Dinh, Huyen N. Gennett, Thomas TI Alloy catalyst development on carbon supports by atomic layer deposition SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Christensen, Steven T.; Hurst, Katherine E.; Bult, Justin B.; Olson, Tim S.; Dameron, Arrelaine A.; Ginley, David S.; Dinh, Huyen N.; Gennett, Thomas] Natl Renewable Energy Lab, Golden, CO USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 319-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804744 ER PT J AU Closser, KD Head-Gordon, M AF Closser, Kristina D. Head-Gordon, Martin TI Configuration interaction singles using absolutely localized molecular orbitals with applications to very large helium clusters SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 104-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804276 ER PT J AU Collier, P Jung, SY Retterer, S AF Collier, Pat Jung, Seung-Yong Retterer, Scott TI Towards the smallest chemical reactors: On-demand generation and fusion of femtoliter-volume aqueous droplets SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Collier, Pat; Jung, Seung-Yong; Retterer, Scott] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. RI Retterer, Scott/A-5256-2011 OI Retterer, Scott/0000-0001-8534-1979 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 311-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982801412 ER PT J AU Colon-Mercado, HR Fox, EB Martinez-Rodriguez, MJ McWhorter, S Greenway, SD AF Colon-Mercado, Hector R. Fox, Elise B. Martinez-Rodriguez, Michael J. McWhorter, Scott Greenway, Scott D. TI Effect of NH3 and chlorinated hydrocarbons on the performance of PEM fuel cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Savannah River Natl Lab, Aiken, SC USA. Greenway Energy LLC, Aiken, SC USA. RI Fox, Elise/G-5438-2013 OI Fox, Elise/0000-0002-4527-5820 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 86-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804615 ER PT J AU Cui, QZ Wang, W Gu, BH AF Cui, Qingzhou Wang, Wei Gu, Baohua TI Controlled fabrication of nanostructured TiO2 films with varying light absorption and photocatalytic characteristics SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Cui, Qingzhou; Wang, Wei; Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RI Gu, Baohua/B-9511-2012; Wang, Wei/B-5924-2012 OI Gu, Baohua/0000-0002-7299-2956; NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 554-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805084 ER PT J AU Cui, QZ Wang, W Gu, BH Liang, LY AF Cui, Qingzhou Wang, Wei Gu, Baohua Liang, Liyuan TI Fabrication of new nanoparticle-hydrogel sensing materials through a combined physical-chemical polymerization process SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 [Cui, Qingzhou; Wang, Wei; Gu, Baohua; Liang, Liyuan] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RI Gu, Baohua/B-9511-2012; Wang, Wei/B-5924-2012; 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 AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 40-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982801243 ER PT J AU Culp, JT Kauffman, KL Madden, C Matranga, C AF Culp, Jeffrey T. Kauffman, Kristi L. Madden, Catherine Matranga, Christopher TI Highly versatile synthesis of pore-functionalized pillared coordination polymers SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Natl Energy Technol Lab, Pittsburgh, PA USA. URS, South Pk, PA USA. Univ Pittsburgh, Pittsburgh, PA USA. RI Kauffman, Kristi/F-5186-2011; Culp, Jeffrey/B-1219-2010; Matranga, Christopher/E-4741-2015 OI Culp, Jeffrey/0000-0002-7422-052X; Matranga, Christopher/0000-0001-7082-5938 NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 561-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982805480 ER PT J AU Cygan, RT Greathouse, JA Nenoff, TM AF Cygan, Randall T. Greathouse, Jeffery A. Nenoff, Tina M. TI Dynamics of interlayer water and cations in clay minerals SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 241st National Meeting and Exposition of the American-Chemical-Society (ACS) CY MAR 27-31, 2011 CL Anaheim, CA SP Amer Chem Soc C1 Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. Sandia Natl Labs, Surface & Interface Sci Dept, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD MAR 27 PY 2011 VL 241 MA 50-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 782BO UT WOS:000291982804879 ER EF